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Diffstat (limited to 'src/LYMainLoop.c')
| -rw-r--r-- | src/LYMainLoop.c | 8212 |
1 files changed, 8212 insertions, 0 deletions
diff --git a/src/LYMainLoop.c b/src/LYMainLoop.c new file mode 100644 index 0000000..6b13814 --- /dev/null +++ b/src/LYMainLoop.c @@ -0,0 +1,8212 @@ +/* + * $LynxId: LYMainLoop.c,v 1.250 2023/01/05 09:17:16 tom Exp $ + */ +#include <HTUtils.h> +#include <HTAccess.h> +#include <HTParse.h> +#include <HTList.h> +#include <HTML.h> +#include <HTFTP.h> +#include <HTFile.h> +#include <HTTP.h> +#include <HTAABrow.h> +#include <HTNews.h> +#include <LYCurses.h> +#include <LYStyle.h> +#include <LYGlobalDefs.h> +#include <HTAlert.h> +#include <LYUtils.h> +#include <GridText.h> +#include <LYStrings.h> +#include <LYOptions.h> +#include <LYSignal.h> +#include <LYGetFile.h> +#include <HTForms.h> +#include <LYSearch.h> +#include <LYClean.h> +#include <LYHistory.h> +#include <LYPrint.h> +#include <LYMail.h> +#include <LYEdit.h> +#include <LYShowInfo.h> +#include <LYBookmark.h> +#include <LYKeymap.h> +#include <LYJump.h> +#include <LYDownload.h> +#include <LYList.h> +#include <LYMap.h> +#include <LYTraversal.h> +#include <LYCharSets.h> +#include <LYCharUtils.h> +#include <LYCookie.h> +#include <LYMainLoop.h> +#include <LYPrettySrc.h> + +#ifdef USE_SESSIONS +#include <LYSession.h> +#endif + +#ifdef KANJI_CODE_OVERRIDE +#include <HTCJK.h> +#endif + +#ifdef PREVENT_KEYBOARD_WRAPAROUND +#define HandleForwardWraparound() \ + *old_c = real_c; \ + HTInfoMsg(ALREADY_AT_END) +#define HandleReverseWraparound() \ + *old_c = real_c; \ + HTInfoMsg(ALREADY_AT_BEGIN) +#else +#define HandleForwardWraparound() \ + LYSetNewline(1) +#define HandleReverseWraparound() \ + int i; \ + i = HText_getNumOfLines() - display_lines + 2; \ + if (i >= 1 && Newline != i) { \ + LYSetNewline(i); \ + *arrowup = TRUE; \ + } +#endif + +#define LinkIsTextarea(linkNumber) \ + (links[linkNumber].type == WWW_FORM_LINK_TYPE && \ + links[linkNumber].l_form->type == F_TEXTAREA_TYPE) + +#define LinkIsTextLike(linkNumber) \ + (links[linkNumber].type == WWW_FORM_LINK_TYPE && \ + F_TEXTLIKE(links[linkNumber].l_form->type)) + +#ifdef KANJI_CODE_OVERRIDE +char *str_kcode(HTkcode code) +{ + char *p; + static char buff[8]; + + if (current_char_set == TRANSPARENT) { + p = "THRU"; + } else if (!LYRawMode) { + p = "RAW"; + } else { + switch (code) { + case NOKANJI: + p = "AUTO"; + break; + + case EUC: + p = "EUC+"; + break; + + case SJIS: + p = "SJIS"; + break; + + case JIS: + p = " JIS"; + break; + + default: + p = " ???"; + break; + } + } + + if (no_table_center) { + buff[0] = '!'; + strcpy(buff + 1, p); + } else { + strcpy(buff, p); + } + + return buff; +} +#endif + +#ifdef WIN_EX + +static char *str_sjis(char *to, char *from) +{ + if (!LYRawMode) { + strcpy(to, from); +#ifdef KANJI_CODE_OVERRIDE + } else if (last_kcode == EUC) { + EUC_TO_SJIS(from, to); + } else if (last_kcode == SJIS) { + strcpy(to, from); +#endif + } else { + TO_SJIS((unsigned char *) from, (unsigned char *) to); + } + return to; +} + +static void set_ws_title(char *str) +{ + SetConsoleTitle(str); +} + +#endif /* WIN_EX */ + +#if defined(USE_EXTERNALS) || defined(WIN_EX) +#include <LYExtern.h> +#endif + +#ifdef __EMX__ +#include <io.h> +#endif + +#ifdef DIRED_SUPPORT +#include <LYLocal.h> +#include <LYUpload.h> +#endif /* DIRED_SUPPORT */ + +#include <LYexit.h> +#include <LYLeaks.h> + +/* two constants: */ +HTLinkType *HTInternalLink = 0; +HTAtom *WWW_SOURCE = 0; + +#define NONINTERNAL_OR_PHYS_DIFFERENT(p,n) \ + ((track_internal_links && \ + (!curdoc.internal_link || are_phys_different(p,n))) || \ + are_different(p,n)) + +#define NO_INTERNAL_OR_DIFFERENT(c,n) \ + (track_internal_links || are_different(c,n)) + +static void exit_immediately_with_error_message(int state, int first_file); +static void status_link(const char *curlink_name, int show_more, int show_indx); +static void show_main_statusline(const LinkInfo curlink, int for_what); +static void form_noviceline(int); +static int are_different(DocInfo *doc1, DocInfo *doc2); + +static int are_phys_different(DocInfo *doc1, DocInfo *doc2); + +#define FASTTAB + +static int sametext(char *een, + char *twee) +{ + if (een && twee) + return (strcmp(een, twee) == 0); + return TRUE; +} + +HTList *Goto_URLs = NULL; /* List of Goto URLs */ + +char *LYRequestTitle = NULL; /* newdoc.title in calls to getfile() */ +char *LYRequestReferer = NULL; /* Referer, may be set in getfile() */ + +static bstring *prev_target = NULL; + +#ifdef DISP_PARTIAL +BOOLEAN display_partial = FALSE; /* could be enabled in HText_new() */ +int NumOfLines_partial = 0; /* number of lines displayed in partial mode */ +#endif + +static int Newline = 0; +static DocInfo newdoc; +static DocInfo curdoc; +static char *traversal_host = NULL; +static char *traversal_link_to_add = NULL; +static char *owner_address = NULL; /* Holds the responsible owner's address */ +static char *ownerS_address = NULL; /* Holds owner's address during source fetch */ + +#ifdef TEXTFIELDS_MAY_NEED_ACTIVATION +static BOOL textinput_activated = FALSE; + +#else +#define textinput_activated TRUE /* a current text input is always active */ +#endif +#ifdef INACTIVE_INPUT_STYLE_VH +BOOL textinput_redrawn = FALSE; + + /*must be public since used in LYhighlight(..) */ +#endif + +#ifdef LY_FIND_LEAKS +/* + * Function for freeing allocated mainloop() variables. - FM + */ +static void free_mainloop_variables(void) +{ + LYFreeDocInfo(&newdoc); + LYFreeDocInfo(&curdoc); + +#ifdef USE_COLOR_STYLE + FREE(curdoc.style); + FREE(newdoc.style); +#endif + FREE(traversal_host); + FREE(traversal_link_to_add); + FREE(owner_address); + FREE(ownerS_address); +#ifdef DIRED_SUPPORT + clear_tags(); + reset_dired_menu(); +#endif /* DIRED_SUPPORT */ + FREE(WWW_Download_File); /* LYGetFile.c/HTFWriter.c */ + FREE(LYRequestReferer); + + return; +} +#endif /* LY_FIND_LEAKS */ + +#ifndef NO_LYNX_TRACE +static void TracelogOpenFailed(void) +{ + WWW_TraceFlag = FALSE; + if (LYCursesON) { + HTUserMsg(TRACELOG_OPEN_FAILED); + } else { + fprintf(stderr, "%s\n", TRACELOG_OPEN_FAILED); + exit_immediately(EXIT_FAILURE); + } +} + +static BOOLEAN LYReopenTracelog(BOOLEAN *trace_flag_ptr) +{ + CTRACE((tfp, "\nTurning off TRACE for fetch of log.\n")); + LYCloseTracelog(); + if ((LYTraceLogFP = LYAppendToTxtFile(LYTraceLogPath)) == NULL) { + TracelogOpenFailed(); + return FALSE; + } + if (TRACE) { + WWW_TraceFlag = FALSE; + *trace_flag_ptr = TRUE; + } + return TRUE; +} + +static void turn_trace_back_on(BOOLEAN *trace_flag_ptr) +{ + if (*trace_flag_ptr == TRUE) { + WWW_TraceFlag = TRUE; + *trace_flag_ptr = FALSE; + fprintf(tfp, "Turning TRACE back on.\n\n"); + } +} +#else +#define LYReopenTracelog(flag) TRUE +#define turn_trace_back_on(flag) /*nothing */ +#endif /* NO_LYNX_TRACE */ + +FILE *TraceFP(void) +{ +#ifndef NO_LYNX_TRACE + if (LYTraceLogFP != 0) { + return LYTraceLogFP; + } +#endif /* NO_LYNX_TRACE */ + return stderr; +} + +BOOLEAN LYOpenTraceLog(void) +{ +#ifndef NO_LYNX_TRACE + if (TRACE && LYUseTraceLog && LYTraceLogFP == NULL) { + /* + * If we can't open it for writing, give up. Otherwise, on VMS close + * it, delete it and any versions from previous sessions so they don't + * accumulate, and open it again. - FM + */ + if ((LYTraceLogFP = LYNewTxtFile(LYTraceLogPath)) == NULL) { + TracelogOpenFailed(); + return FALSE; + } +#ifdef VMS + LYCloseTracelog(); + HTSYS_remove(LYTraceLogPath); + if ((LYTraceLogFP = LYNewTxtFile(LYTraceLogPath)) == NULL) { + TracelogOpenFailed(); + return FALSE; + } +#endif /* VMS */ + fflush(stdout); + fflush(stderr); + fprintf(tfp, "\t\t%s (%s)\n\n", LYNX_TRACELOG_TITLE, LYNX_VERSION); + /* + * If TRACE is on, indicate whether the anonymous restrictions are set. + * - FM, LP, kw + * + * This is only a summary for convenience - it doesn't take the case of + * individual -restrictions= options into account. - kw + */ + if (LYValidate) { + if (LYRestricted && had_restrictions_default) { + CTRACE((tfp, + "Validate and some anonymous restrictions are set.\n")); + } else if (had_restrictions_default) { + CTRACE((tfp, + "Validate restrictions set, restriction \"default\" was given.\n")); + } else if (LYRestricted) { + CTRACE((tfp, + "Validate restrictions set, additional anonymous restrictions ignored.\n")); + } else { + CTRACE((tfp, "Validate restrictions are set.\n")); + } + /* But none of the above can actually happen, since there should + * never be a Trace Log with -validate. If it appears in a log + * file something went wrong! */ + } else if (LYRestricted) { + if (had_restrictions_all) { + CTRACE((tfp, + "Anonymous restrictions set, restriction \"all\" was given.\n")); + } else { + CTRACE((tfp, "Anonymous restrictions are set.\n")); + } + } else if (had_restrictions_all && had_restrictions_default) { + CTRACE((tfp, "Restrictions \"all\" and \"default\" were given.\n")); + } else if (had_restrictions_default) { + CTRACE((tfp, "Restriction \"default\" was given.\n")); + } else if (had_restrictions_all) { + CTRACE((tfp, "\"all\" restrictions are set.\n")); + } + } +#endif /* NO_LYNX_TRACE */ + return TRUE; +} + +void LYCloseTracelog(void) +{ +#ifndef NO_LYNX_TRACE + if (LYTraceLogFP != 0) { + fflush(stdout); + fflush(stderr); + fclose(LYTraceLogFP); + LYTraceLogFP = 0; + } +#endif /* NO_LYNX_TRACE */ +} + +void handle_LYK_TRACE_TOGGLE(void) +{ +#ifndef NO_LYNX_TRACE + WWW_TraceFlag = (BOOLEAN) !WWW_TraceFlag; + if (LYOpenTraceLog()) + HTUserMsg(WWW_TraceFlag ? TRACE_ON : TRACE_OFF); +#else + HTUserMsg(TRACE_DISABLED); +#endif /* NO_LYNX_TRACE */ +} + +void LYSetNewline(int value) +{ + Newline = value; +} + +#define LYSetNewline(value) Newline = value + +int LYGetNewline(void) +{ + return Newline; +} + +#define LYGetNewline() Newline + +void LYChgNewline(int adjust) +{ + LYSetNewline(Newline + adjust); +} + +#define LYChgNewline(adjust) Newline += (adjust) + +#ifdef USE_SOURCE_CACHE +static BOOLEAN from_source_cache = FALSE; + +/* + * Like HTreparse_document(), but also set the flag. + */ +static BOOLEAN reparse_document(void) +{ + BOOLEAN result; + + from_source_cache = TRUE; /* set for LYMainLoop_pageDisplay() */ + if ((result = HTreparse_document()) != FALSE) { + from_source_cache = TRUE; /* set for mainloop refresh */ + } else { + from_source_cache = FALSE; + } + return result; +} +#endif /* USE_SOURCE_CACHE */ + +/* + * Prefer reparsing if we can, but reload if we must - to force regeneration + * of the display. + */ +static BOOLEAN reparse_or_reload(int *cmd) +{ +#ifdef USE_SOURCE_CACHE + if (reparse_document()) { + return FALSE; + } +#endif + *cmd = LYK_RELOAD; + return TRUE; +} + +/* + * Functions for setting the current address + */ +static void set_address(DocInfo *doc, const char *address) +{ + StrAllocCopy(doc->address, address); +} + +static void copy_address(DocInfo *dst, DocInfo *src) +{ + StrAllocCopy(dst->address, src->address); +} + +static void free_address(DocInfo *doc) +{ + FREE(doc->address); +} + +static void move_address(DocInfo *dst, DocInfo *src) +{ + copy_address(dst, src); + free_address(src); +} + +#ifdef DISP_PARTIAL +/* + * This is for traversal call from within partial mode in LYUtils.c + * and HTFormat.c It simply calls HText_pageDisplay() but utilizes + * LYMainLoop.c static variables to manage proper newline position + * in case of #fragment + */ +BOOL LYMainLoop_pageDisplay(int line_num) +{ + const char *pound; + int prev_newline = LYGetNewline(); + + /* + * Override Newline with a new value if user scrolled the document while + * loading (in LYUtils.c). + */ + LYSetNewline(line_num); + +#ifdef USE_SOURCE_CACHE + /* + * reparse_document() acts on 'curdoc' which always on top of the + * history stack: no need to resolve #fragment position since + * we already know it (curdoc.line). + * So bypass here. Sorry for possible confusion... + */ + if (!from_source_cache) +#endif + /* + * If the requested URL has the #fragment, and we are not popped + * from the history stack, and have not scrolled the document yet - + * we should calculate correct newline position for the fragment. + * (This is a bit suboptimal since HTFindPoundSelector() traverse + * anchors list each time, so we have a quadratic complexity + * and may load CPU in a worst case). + */ + if (display_partial + && newdoc.line == 1 && line_num == 1 && prev_newline == 1 + && (pound = findPoundSelector(newdoc.address)) + && *pound && *(pound + 1)) { + if (HTFindPoundSelector(pound + 1)) { + /* HTFindPoundSelector will initialize www_search_result */ + LYSetNewline(www_search_result); + } else { + LYSetNewline(prev_newline); /* restore ??? */ + return NO; /* no repaint */ + } + } + + HText_pageDisplay(LYGetNewline(), prev_target->str); + return YES; +} +#endif /* DISP_PARTIAL */ + +static BOOL set_curdoc_link(int nextlink) +{ + BOOL result = FALSE; + + if (curdoc.link != nextlink + && nextlink >= 0 + && nextlink < nlinks) { + if (curdoc.link >= 0 && curdoc.link < nlinks) { + LYhighlight(FALSE, curdoc.link, prev_target->str); + result = TRUE; + } + curdoc.link = nextlink; + } + return result; +} + +/* + * Setup newdoc to jump to the given line. + * + * FIXME: prefer to also jump to the link given in a URL fragment, but the + * interface of getfile() does not provide that ability yet. + */ +static void goto_line(int nextline) +{ + int n; + int old_link = newdoc.link; + + newdoc.link = 0; + for (n = 0; n < nlinks; ++n) { + if (nextline == links[n].anchor_line_num + 1) { + CTRACE((tfp, "top_of_screen %d\n", HText_getTopOfScreen() + 1)); + CTRACE((tfp, "goto_line(%d) -> link %d -> %d\n", nextline, + old_link, n)); + newdoc.link = n; + break; + } + } +} + +#ifdef USE_MOUSE +static void set_curdoc_link_by_mouse(int nextlink) +{ + if (set_curdoc_link(nextlink)) { + LYhighlight(TRUE, nextlink, prev_target->str); + LYmsec_delay(20); + } +} +#else +#define set_curdoc_link_by_mouse(nextlink) set_curdoc_link(nextlink) +#endif + +static int do_change_link(void) +{ +#ifdef USE_MOUSE + /* Is there a mouse-clicked link waiting? */ + int mouse_tmp = get_mouse_link(); + + /* If yes, use it as the link */ + if (mouse_tmp != -1) { + if (mouse_tmp < 0 || mouse_tmp >= nlinks) { + char *msgtmp = NULL; + + HTSprintf0(&msgtmp, + gettext("Internal error: Invalid mouse link %d!"), + mouse_tmp); + HTAlert(msgtmp); + FREE(msgtmp); + return (-1); /* indicates unexpected error */ + } + set_curdoc_link_by_mouse(mouse_tmp); + } +#endif /* USE_MOUSE */ + return (0); /* indicates OK */ +} + +#ifdef DIRED_SUPPORT +#define DIRED_UNCACHE_1 if (LYAutoUncacheDirLists < 1) /*nothing*/ ;\ + else HTuncache_current_document() +#define DIRED_UNCACHE_2 if (LYAutoUncacheDirLists < 2) /*nothing*/ ;\ + else HTuncache_current_document() +#endif /* DIRED_SUPPORT */ + +static void do_check_goto_URL(bstring **user_input, + char **old_user_input, + BOOLEAN *force_load) +{ + static BOOLEAN always = TRUE; + /* *INDENT-OFF* */ + static struct { + const char *name; + BOOLEAN *flag; + } table[] = { + { STR_FILE_URL, &no_file_url }, + { STR_FILE_URL, &no_goto_file }, + { STR_LYNXEXEC, &no_goto_lynxexec }, + { STR_LYNXPROG, &no_goto_lynxprog }, + { STR_LYNXCGI, &no_goto_lynxcgi }, + { STR_CSO_URL, &no_goto_cso }, + { STR_FINGER_URL, &no_goto_finger }, + { STR_FTP_URL, &no_goto_ftp }, + { STR_GOPHER_URL, &no_goto_gopher }, + { STR_HTTP_URL, &no_goto_http }, + { STR_HTTPS_URL, &no_goto_https }, + { STR_MAILTO_URL, &no_goto_mailto }, + { STR_RLOGIN_URL, &no_goto_rlogin }, + { STR_TELNET_URL, &no_goto_telnet }, + { STR_TN3270_URL, &no_goto_tn3270 }, + { STR_WAIS_URL, &no_goto_wais }, +#ifndef DISABLE_BIBP + { STR_BIBP_URL, &no_goto_bibp }, +#endif +#ifndef DISABLE_NEWS + { STR_NEWS_URL, &no_goto_news }, + { STR_NNTP_URL, &no_goto_nntp }, + { STR_SNEWS_URL, &no_goto_snews }, +#endif +#ifdef EXEC_LINKS + { STR_LYNXEXEC, &local_exec_on_local_files }, + { STR_LYNXPROG, &local_exec_on_local_files }, +#endif /* EXEC_LINKS */ + { STR_LYNXCFG, &no_goto_configinfo }, + { STR_LYNXCFLAGS, &no_goto_configinfo }, + { STR_LYNXCOOKIE, &always }, +#ifdef USE_CACHEJAR + { STR_LYNXCACHE, &always }, +#endif + { STR_LYNXDIRED, &always }, + { STR_LYNXDOWNLOAD, &always }, + { STR_LYNXOPTIONS, &always }, + { STR_LYNXPRINT, &always }, + }; + /* *INDENT-ON* */ + + unsigned n; + BOOLEAN found = FALSE; + + /* allow going to anchors */ + if ((*user_input)->str[0] == '#') { + if ((*user_input)->str[1] && + HTFindPoundSelector((*user_input)->str + 1)) { + /* HTFindPoundSelector will initialize www_search_result, + so we do nothing else. */ + HTAddGotoURL((*user_input)->str); + trimPoundSelector(curdoc.address); + StrAllocCat(curdoc.address, (*user_input)->str); + } + } else { + /* + * If it's not a URL then make it one. + */ + StrAllocCopy(*old_user_input, (*user_input)->str); + LYEnsureAbsoluteURL(old_user_input, "", TRUE); + BStrCopy0((*user_input), *old_user_input); + FREE(*old_user_input); + + for (n = 0; n < TABLESIZE(table); n++) { + if (*(table[n].flag) + && !StrNCmp((*user_input)->str, + table[n].name, + strlen(table[n].name))) { + found = TRUE; + HTUserMsg2(GOTO_XXXX_DISALLOWED, table[n].name); + break; + } + } + if (found) { + ; + } else if (LYValidate && + !isHTTP_URL((*user_input)->str) && + !isHTTPS_URL((*user_input)->str)) { + HTUserMsg(GOTO_NON_HTTP_DISALLOWED); + + } else { + set_address(&newdoc, (*user_input)->str); + newdoc.isHEAD = FALSE; + /* + * Might be an anchor in the same doc from a POST form. If so, + * don't free the content. -- FM + */ + if (are_different(&curdoc, &newdoc)) { + /* + * Make a name for this new URL. + */ + StrAllocCopy(newdoc.title, + gettext("A URL specified by the user")); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + *force_load = TRUE; +#ifdef DIRED_SUPPORT + if (lynx_edit_mode) { + DIRED_UNCACHE_2; + } +#endif /* DIRED_SUPPORT */ + } + LYUserSpecifiedURL = TRUE; + HTAddGotoURL(newdoc.address); + } + } +} + +/* returns FALSE if user cancelled input or URL was invalid, TRUE otherwise */ +static BOOL do_check_recall(int ch, + bstring **user_input, + char **old_user_input, + int URLTotal, + int *URLNum, + RecallType recall, + BOOLEAN *FirstURLRecall) +{ + char *cp; + BOOL ret = FALSE; + + if (*old_user_input == 0) + StrAllocCopy(*old_user_input, ""); + + for (;;) { +#ifdef WIN_EX /* 1998/10/11 (Sun) 10:41:05 */ + int len = (int) strlen((*user_input)->str); + + if (len >= 3) { + if (len < MAX_LINE - 1 + && LYIsHtmlSep((*user_input)->str[len - 3]) + && LYIsDosDrive((*user_input)->str + len - 2)) + LYAddPathSep0((*user_input)->str); + + } else if (len == 2 && (*user_input)->str[1] == ':') { + if (LYIsDosDrive((*user_input)->str)) { + LYAddPathSep0((*user_input)->str); + } else { + HTUserMsg2(WWW_ILLEGAL_URL_MESSAGE, (*user_input)->str); + BStrCopy0((*user_input), *old_user_input); + FREE(*old_user_input); + ret = FALSE; + break; + } + } +#endif + /* + * Get rid of leading spaces (and any other spaces). + */ + LYTrimAllStartfile((*user_input)->str); + if (isBEmpty(*user_input) && + !(recall && (ch == UPARROW_KEY || ch == DNARROW_KEY))) { + BStrCopy0((*user_input), *old_user_input); + FREE(*old_user_input); + HTInfoMsg(CANCELLED); + ret = FALSE; + break; + } + if (recall && ch == UPARROW_KEY) { + if (*FirstURLRecall) { + /* + * Use last URL in the list. - FM + */ + *FirstURLRecall = FALSE; + *URLNum = 0; + } else { + /* + * Go back to the previous URL in the list. - FM + */ + *URLNum += 1; + } + if (*URLNum >= URLTotal) + /* + * Roll around to the last URL in the list. - FM + */ + *URLNum = 0; + if ((cp = (char *) HTList_objectAt(Goto_URLs, + *URLNum)) != NULL) { + BStrCopy0((*user_input), cp); + if (goto_buffer + && **old_user_input + && !strcmp(*old_user_input, (*user_input)->str)) { + _statusline(EDIT_CURRENT_GOTO); + } else if ((goto_buffer && URLTotal == 2) || + (!goto_buffer && URLTotal == 1)) { + _statusline(EDIT_THE_PREV_GOTO); + } else { + _statusline(EDIT_A_PREV_GOTO); + } + if ((ch = LYgetBString(user_input, FALSE, 0, recall)) < 0) { + /* + * User cancelled the Goto via ^G. Restore + * user_input and break. - FM + */ + BStrCopy0((*user_input), *old_user_input); + FREE(*old_user_input); + HTInfoMsg(CANCELLED); + ret = FALSE; + break; + } + continue; + } + } else if (recall && ch == DNARROW_KEY) { + if (*FirstURLRecall) { + /* + * Use the first URL in the list. - FM + */ + *FirstURLRecall = FALSE; + *URLNum = URLTotal - 1; + } else { + /* + * Advance to the next URL in the list. - FM + */ + *URLNum -= 1; + } + if (*URLNum < 0) + /* + * Roll around to the first URL in the list. - FM + */ + *URLNum = URLTotal - 1; + if ((cp = (char *) HTList_objectAt(Goto_URLs, *URLNum)) != NULL) { + BStrCopy0((*user_input), cp); + if (goto_buffer && **old_user_input && + !strcmp(*old_user_input, (*user_input)->str)) { + _statusline(EDIT_CURRENT_GOTO); + } else if ((goto_buffer && URLTotal == 2) || + (!goto_buffer && URLTotal == 1)) { + _statusline(EDIT_THE_PREV_GOTO); + } else { + _statusline(EDIT_A_PREV_GOTO); + } + if ((ch = LYgetBString(user_input, FALSE, 0, recall)) < 0) { + /* + * User cancelled the Goto via ^G. Restore + * user_input and break. - FM + */ + BStrCopy0((*user_input), *old_user_input); + FREE(*old_user_input); + HTInfoMsg(CANCELLED); + ret = FALSE; + break; + } + continue; + } + } else { + ret = TRUE; + break; + } + } + return ret; +} + +static void do_cleanup_after_delete(void) +{ + HTuncache_current_document(); + move_address(&newdoc, &curdoc); + newdoc.line = curdoc.line; + if (curdoc.link == nlinks - 1) { + /* + * We deleted the last link on the page. - FM + */ + newdoc.link = curdoc.link - 1; + } else { + newdoc.link = curdoc.link; + } +} + +static int find_link_near_col(int col, + int delta) +{ + int i; + + for (i = curdoc.link; delta > 0 ? (i < nlinks) : (i >= 0); i += delta) { + if ((links[i].ly - links[curdoc.link].ly) * delta > 0) { + int cy = links[i].ly, best = -1, dist = 1000000; + + while ((delta > 0 ? (i < nlinks) : (i >= 0)) && cy == links[i].ly) { + int cx = links[i].lx; + const char *text = LYGetHiliteStr(i, 0); + + if (text != NULL) + cx += (int) strlen(text) / 2; + cx -= col; + if (cx < 0) + cx = -cx; + if (cx < dist) { + dist = cx; + best = i; + } + i += delta; + } + return (best); + } + } + return (-1); +} + +/* + * This is a special feature to traverse every http link derived from startfile + * and check for errors or create crawl output files. Only URL's that begin + * with "traversal_host" are searched - this keeps the search from crossing to + * other servers (a feature, not a bug!). + */ +static int DoTraversal(int c, + BOOLEAN *crawl_ok) +{ + BOOLEAN rlink_rejected = FALSE; + BOOLEAN rlink_exists; + BOOLEAN rlink_allowed; + + rlink_exists = (BOOL) (nlinks > 0 && + links[curdoc.link].type != WWW_FORM_LINK_TYPE && + links[curdoc.link].lname != NULL); + + if (rlink_exists) { + rlink_rejected = lookup_reject(links[curdoc.link].lname); + if (!rlink_rejected && + traversal_host && + links[curdoc.link].lname) { + if (!isLYNXIMGMAP(links[curdoc.link].lname)) { + rlink_allowed = (BOOL) !StrNCmp(traversal_host, + links[curdoc.link].lname, + strlen(traversal_host)); + } else { + rlink_allowed = (BOOL) !StrNCmp(traversal_host, + links[curdoc.link].lname + LEN_LYNXIMGMAP, + strlen(traversal_host)); + } + } else { + rlink_allowed = FALSE; + } + } else { + rlink_allowed = FALSE; + } + if (rlink_exists && rlink_allowed) { + if (lookup_link(links[curdoc.link].lname)) { + if (more_links || + (curdoc.link > -1 && curdoc.link < nlinks - 1)) { + c = DNARROW_KEY; + } else { + if (STREQ(curdoc.title, "Entry into main screen") || + (nhist <= 0)) { + if (!dump_output_immediately) { + cleanup(); + exit_immediately(EXIT_FAILURE); + } + c = -1; + } else { + c = LTARROW_KEY; + } + } + } else { + StrAllocCopy(traversal_link_to_add, + links[curdoc.link].lname); + if (!isLYNXIMGMAP(traversal_link_to_add)) + *crawl_ok = TRUE; + c = RTARROW_KEY; + } + } else { /* no good right link, so only down and left arrow ok */ + if (rlink_exists /* && !rlink_rejected */ ) + /* uncomment in previous line to avoid duplicates - kw */ + add_to_reject_list(links[curdoc.link].lname); + if (more_links || + (curdoc.link > -1 && curdoc.link < nlinks - 1)) { + c = DNARROW_KEY; + } else { + /* + * curdoc.title doesn't always work, so bail out if the history + * list is empty. + */ + if (STREQ(curdoc.title, "Entry into main screen") || + (nhist <= 0)) { + if (!dump_output_immediately) { + cleanup(); + exit_immediately(EXIT_FAILURE); + } + c = -1; + } else { + c = LTARROW_KEY; + } + } + } + CTRACE((tfp, "DoTraversal(%d:%d) -> %s\n", + nlinks > 0 ? curdoc.link : 0, + nlinks, + LYKeycodeToString(c, FALSE))); + return c; +} + +static BOOLEAN check_history(void) +{ + const char *base; + + if (!curdoc.post_data) + /* + * Normal case - List Page is not associated with post data. - kw + */ + return TRUE; + + if (nhist > 0 + && !LYresubmit_posts + && HDOC(nhist - 1).post_data + && BINEQ(curdoc.post_data, HDOC(nhist - 1).post_data) + && (base = HText_getContentBase()) != 0) { + char *text = !isLYNXIMGMAP(HDOC(nhist - 1).address) + ? HDOC(nhist - 1).address + : HDOC(nhist - 1).address + LEN_LYNXIMGMAP; + + if (!StrNCmp(base, text, strlen(base))) { + /* + * Normal case - as best as we can check, the document at the top + * of the history stack seems to be the document the List Page is + * about (or a LYNXIMGMAP derived from it), and LYresubmit_posts is + * not set, so don't prompt here. If we actually have to repeat a + * POST because, against expectations, the underlying document + * isn't cached any more, HTAccess will prompt for confirmation, + * unless we had LYK_NOCACHE -kw + */ + return TRUE; + } + } + return FALSE; +} + +static int handle_LYK_ACTIVATE(int *c, + int cmd GCC_UNUSED, + BOOLEAN *try_internal GCC_UNUSED, + BOOLEAN *refresh_screen, + BOOLEAN *force_load, + int real_cmd) +{ + if (do_change_link() == -1) { + LYforce_no_cache = FALSE; + reloading = FALSE; + return 1; /* mouse stuff was confused, ignore - kw */ + } + if (nlinks > 0) { + if (links[curdoc.link].type == WWW_FORM_LINK_TYPE) { +#ifdef TEXTFIELDS_MAY_NEED_ACTIVATION + if (real_cmd == LYK_ACTIVATE && textfields_need_activation && + F_TEXTLIKE(links[curdoc.link].l_form->type)) { + + textinput_activated = TRUE; + show_main_statusline(links[curdoc.link], FOR_INPUT); + textfields_need_activation = textfields_activation_option; + + return 0; + } +#endif + /* + * Don't try to submit forms with bad actions. - FM + */ + if (links[curdoc.link].l_form->type == F_SUBMIT_TYPE || + links[curdoc.link].l_form->type == F_IMAGE_SUBMIT_TYPE || + links[curdoc.link].l_form->type == F_TEXT_SUBMIT_TYPE) { + /* + * Do nothing if it's disabled. - FM + */ + if (links[curdoc.link].l_form->disabled == YES) { + HTOutputFormat = WWW_PRESENT; + LYforce_no_cache = FALSE; + reloading = FALSE; + return 0; + } + /* + * Make sure we have an action. - FM + */ + if (isEmpty(links[curdoc.link].l_form->submit_action)) { + HTUserMsg(NO_FORM_ACTION); + HTOutputFormat = WWW_PRESENT; + LYforce_no_cache = FALSE; + reloading = FALSE; + return 0; + } + /* + * Check for no_mail if the form action is a mailto URL. - FM + */ + if (links[curdoc.link].l_form->submit_method + == URL_MAIL_METHOD && no_mail) { + HTAlert(FORM_MAILTO_DISALLOWED); + HTOutputFormat = WWW_PRESENT; + LYforce_no_cache = FALSE; + reloading = FALSE; + return 0; + } + /* + * Make sure this isn't a spoof in an account with restrictions + * on file URLs. - FM + */ + if (no_file_url && + isFILE_URL(links[curdoc.link].l_form->submit_action)) { + HTAlert(FILE_ACTIONS_DISALLOWED); + HTOutputFormat = WWW_PRESENT; + LYforce_no_cache = FALSE; + reloading = FALSE; + return 0; + } + /* + * Make sure this isn't a spoof attempt via an internal URL. - + * FM + */ + if (isLYNXCOOKIE(links[curdoc.link].l_form->submit_action) || + isLYNXCACHE(links[curdoc.link].l_form->submit_action) || +#ifdef DIRED_SUPPORT +#ifdef OK_PERMIT + (isLYNXDIRED(links[curdoc.link].l_form->submit_action) && + (no_dired_support || + strncasecomp((links[curdoc.link].l_form->submit_action + + 10), + "//PERMIT_LOCATION", 17) || + !LYIsUIPage(curdoc.address, UIP_PERMIT_OPTIONS))) || +#else + isLYNXDIRED(links[curdoc.link].l_form->submit_action) || +#endif /* OK_PERMIT */ +#endif /* DIRED_SUPPORT */ + isLYNXDOWNLOAD(links[curdoc.link].l_form->submit_action) || + isLYNXHIST(links[curdoc.link].l_form->submit_action) || + isLYNXEDITMAP(links[curdoc.link].l_form->submit_action) || + isLYNXKEYMAP(links[curdoc.link].l_form->submit_action) || + isLYNXIMGMAP(links[curdoc.link].l_form->submit_action) || + isLYNXPRINT(links[curdoc.link].l_form->submit_action) || + isLYNXEXEC(links[curdoc.link].l_form->submit_action) || + isLYNXPROG(links[curdoc.link].l_form->submit_action)) { + + HTAlert(SPECIAL_ACTION_DISALLOWED); + CTRACE((tfp, "LYMainLoop: Rejected '%s'\n", + links[curdoc.link].l_form->submit_action)); + HTOutputFormat = WWW_PRESENT; + LYforce_no_cache = FALSE; + reloading = FALSE; + return 0; + } +#ifdef NOTDEFINED /* We're disabling form inputs instead of using this. - FM */ + /* + * Check for enctype and let user know we don't yet support + * multipart/form-data - FM + */ + if (links[curdoc.link].l_form->submit_enctype) { + if (!strcmp(links[curdoc.link].l_form->submit_enctype, + "multipart/form-data")) { + HTAlert(gettext("Enctype multipart/form-data not yet supported! Cannot submit.")); + HTOutputFormat = WWW_PRESENT; + LYforce_no_cache = FALSE; + reloading = FALSE; + return 0; + } + } +#endif /* NOTDEFINED */ + if (check_realm) { + LYPermitURL = TRUE; + } + if (no_filereferer == TRUE && isFILE_URL(curdoc.address)) { + LYNoRefererForThis = TRUE; + } + if (links[curdoc.link].l_form->submit_method != URL_MAIL_METHOD) { + StrAllocCopy(newdoc.title, + LYGetHiliteStr(curdoc.link, 0)); + } + } + + /* + * Normally we don't get here for text input fields, but it can + * happen as a result of mouse positioning. In that case the + * statusline will not have updated info, so update it now. - kw + */ + if (F_TEXTLIKE(links[curdoc.link].l_form->type)) { + show_formlink_statusline(links[curdoc.link].l_form, + (real_cmd == LYK_NOCACHE || + real_cmd == LYK_DOWNLOAD || + real_cmd == LYK_HEAD || + (real_cmd == LYK_MOUSE_SUBMIT && + !textinput_activated)) ? + FOR_PANEL : FOR_INPUT); + if (user_mode == NOVICE_MODE && + textinput_activated && + (real_cmd == LYK_ACTIVATE || + real_cmd == LYK_MOUSE_SUBMIT)) { + form_noviceline(FormIsReadonly(links[curdoc.link].l_form)); + } + } + + *c = change_form_link(curdoc.link, + &newdoc, refresh_screen, + FALSE, + (real_cmd == LYK_MOUSE_SUBMIT || + real_cmd == LYK_NOCACHE || + real_cmd == LYK_DOWNLOAD || + real_cmd == LYK_HEAD)); + if (*c != LKC_DONE || *refresh_screen) { + /* + * Cannot have been a submit field for which newdoc was filled + * in. - kw + */ + if ((links[curdoc.link].l_form->type == F_SUBMIT_TYPE || + links[curdoc.link].l_form->type == F_IMAGE_SUBMIT_TYPE || + links[curdoc.link].l_form->type == F_TEXT_SUBMIT_TYPE) && + links[curdoc.link].l_form->submit_method + != URL_MAIL_METHOD) { + /* + * Try to undo change of newdoc.title done above. + */ + if (HText_getTitle()) { + StrAllocCopy(newdoc.title, HText_getTitle()); + } else if (curdoc.title) { + StrAllocCopy(newdoc.title, curdoc.title); + } + } + } else { + if (HTOutputFormat == WWW_DOWNLOAD && + newdoc.post_data != NULL && + newdoc.safe == FALSE) { + + if ((HText_POSTReplyLoaded(&newdoc) == TRUE) && + HTConfirm(CONFIRM_POST_RESUBMISSION) == FALSE) { + HTInfoMsg(CANCELLED); + HTOutputFormat = WWW_PRESENT; + LYforce_no_cache = FALSE; + copy_address(&newdoc, &curdoc); + StrAllocCopy(newdoc.title, curdoc.title); + BStrCopy(newdoc.post_data, curdoc.post_data); + StrAllocCopy(newdoc.post_content_type, + curdoc.post_content_type); + StrAllocCopy(newdoc.bookmark, curdoc.bookmark); + newdoc.isHEAD = curdoc.isHEAD; + newdoc.safe = curdoc.safe; + newdoc.internal_link = curdoc.internal_link; + return 0; + } + } + /* + * Moved here from earlier to only apply when it should. + * Anyway, why should realm checking be overridden for form + * submissions, this seems to be an unnecessary loophole?? But + * that's the way it was, maybe there is some reason. However, + * at least make sure this doesn't weaken restrictions implied + * by -validate! + * - kw 1999-05-25 + */ + if (check_realm && !LYValidate) { + LYPermitURL = TRUE; + } + } + if (*c == LKC_DONE) { + *c = DO_NOTHING; + } else if (*c == 23) { + *c = DO_NOTHING; + *refresh_screen = TRUE; + } else { + /* Avoid getting stuck with repeatedly calling + * handle_LYK_ACTIVATE(), instead of calling change_form_link() + * directly from mainloop(), for text input fields. - kw + */ + switch (LKC_TO_C(*c)) { + case '\n': + case '\r': + default: + if ((real_cmd == LYK_ACTIVATE || + real_cmd == LYK_MOUSE_SUBMIT) && + F_TEXTLIKE(links[curdoc.link].l_form->type) && + textinput_activated) { + return 3; + } + break; + } + } + return 2; + } else { + /* + * Not a forms link. + * + * Make sure this isn't a spoof in an account with restrictions on + * file URLs. - FM + */ + if (no_file_url && isFILE_URL(links[curdoc.link].lname)) { + if (!isFILE_URL(curdoc.address) && + !((isLYNXEDITMAP(curdoc.address) || + isLYNXKEYMAP(curdoc.address) || + isLYNXCOOKIE(curdoc.address) || + isLYNXCACHE(curdoc.address)) && + !StrNCmp(links[curdoc.link].lname, + helpfilepath, + strlen(helpfilepath)))) { + HTAlert(FILE_SERVED_LINKS_DISALLOWED); + reloading = FALSE; + return 0; + } else if (curdoc.bookmark != NULL) { + HTAlert(FILE_BOOKMARKS_DISALLOWED); + reloading = FALSE; + return 0; + } + } + /* + * Make sure this isn't a spoof attempt via an internal URL in a + * non-internal document. - FM + */ + if ((isLYNXCOOKIE(links[curdoc.link].lname) && + (strcmp(NonNull(curdoc.title), COOKIE_JAR_TITLE) || + !isLYNXCOOKIE(curdoc.address))) || +#ifdef USE_CACHEJAR + (isLYNXCACHE(links[curdoc.link].lname) && + (strcmp(NonNull(curdoc.title), CACHE_JAR_TITLE) || + !isLYNXCACHE(curdoc.address))) || +#endif +#ifdef DIRED_SUPPORT + (isLYNXDIRED(links[curdoc.link].lname) && + !LYIsUIPage(curdoc.address, UIP_DIRED_MENU) && + !LYIsUIPage(curdoc.address, UIP_PERMIT_OPTIONS) && +#ifdef OK_INSTALL + !LYIsUIPage(curdoc.address, UIP_INSTALL) && +#endif /* OK_INSTALL */ + !LYIsUIPage(curdoc.address, UIP_UPLOAD_OPTIONS)) || +#endif /* DIRED_SUPPORT */ + (isLYNXDOWNLOAD(links[curdoc.link].lname) && + !LYIsUIPage(curdoc.address, UIP_DOWNLOAD_OPTIONS)) || + (isLYNXHIST(links[curdoc.link].lname) && + !LYIsUIPage(curdoc.address, UIP_HISTORY) && + !LYIsUIPage(curdoc.address, UIP_LIST_PAGE) && + !LYIsUIPage(curdoc.address, UIP_ADDRLIST_PAGE)) || + (isLYNXPRINT(links[curdoc.link].lname) && + !LYIsUIPage(curdoc.address, UIP_PRINT_OPTIONS))) { + HTAlert(SPECIAL_VIA_EXTERNAL_DISALLOWED); + HTOutputFormat = WWW_PRESENT; + LYforce_no_cache = FALSE; + reloading = FALSE; + return 0; + } +#ifdef USE_EXTERNALS + if (run_external(links[curdoc.link].lname, TRUE)) { + *refresh_screen = TRUE; + return 0; + } +#endif /* USE_EXTERNALS */ + + /* + * Follow a normal link or anchor. + */ + set_address(&newdoc, links[curdoc.link].lname); + StrAllocCopy(newdoc.title, LYGetHiliteStr(curdoc.link, 0)); + /* + * For internal links, retain POST content if present. If we are + * on the List Page, prevent pushing it on the history stack. + * Otherwise set try_internal to signal that the top of the loop + * should attempt to reposition directly, without calling getfile. + * - kw + */ + if (track_internal_links) { + /* + * Might be an internal link anchor in the same doc. If so, take + * the try_internal shortcut if we didn't fall through from + * LYK_NOCACHE. - kw + */ + newdoc.internal_link = + (links[curdoc.link].type == WWW_INTERN_LINK_TYPE); + if (newdoc.internal_link) { + /* + * Special case of List Page document with an internal link + * indication, which may really stand for an internal link + * within the document the List Page is about. - kw + */ + if (LYIsListpageTitle(NonNull(curdoc.title)) && + (LYIsUIPage(curdoc.address, UIP_LIST_PAGE) || + LYIsUIPage(curdoc.address, UIP_ADDRLIST_PAGE))) { + if (check_history()) { + LYinternal_flag = TRUE; + } else { + HTLastConfirmCancelled(); /* reset flag */ + if (!confirm_post_resub(newdoc.address, + newdoc.title, + ((LYresubmit_posts && + HText_POSTReplyLoaded(&newdoc)) + ? 1 + : 2), + 2)) { + if (HTLastConfirmCancelled() || + (LYresubmit_posts && + cmd != LYK_NOCACHE && + !HText_POSTReplyLoaded(&newdoc))) { + /* cancel the whole thing */ + LYforce_no_cache = FALSE; + reloading = FALSE; + copy_address(&newdoc, &curdoc); + StrAllocCopy(newdoc.title, curdoc.title); + newdoc.internal_link = curdoc.internal_link; + HTInfoMsg(CANCELLED); + return 1; + } else if (LYresubmit_posts && + cmd != LYK_NOCACHE) { + /* If LYresubmit_posts is set, and the + answer was No, and the key wasn't + NOCACHE, and we have a cached copy, + then use it. - kw */ + LYforce_no_cache = FALSE; + } else { + /* if No, but not ^C or ^G, drop + * the post data. Maybe the link + * wasn't meant to be internal after + * all, here we can recover from that + * assumption. - kw */ + LYFreePostData(&newdoc); + newdoc.internal_link = FALSE; + HTAlert(DISCARDING_POST_DATA); + } + } + } + /* + * Don't push the List Page if we follow an internal link + * given by it. - kw + */ + free_address(&curdoc); + } else if (cmd != LYK_NOCACHE) { + *try_internal = TRUE; + } + if (!(LYresubmit_posts && newdoc.post_data)) + LYinternal_flag = TRUE; + /* We still set force_load so that history pushing + * etc. will be done. - kw + */ + *force_load = TRUE; + return 1; + } else { + /* + * Free POST content if not an internal link. - kw + */ + LYFreePostData(&newdoc); + } + } + /* + * Might be an anchor in the same doc from a POST form. If so, + * don't free the content. -- FM + */ + if (are_different(&curdoc, &newdoc)) { + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + if (isLYNXMESSAGES(newdoc.address)) + LYforce_no_cache = TRUE; + } + if (!no_jump && lynxjumpfile && curdoc.address && + !strcmp(lynxjumpfile, curdoc.address)) { + LYJumpFileURL = TRUE; + LYUserSpecifiedURL = TRUE; + } else if ((curdoc.title && + (LYIsUIPage(curdoc.address, UIP_HISTORY) || + !strcmp(curdoc.title, HISTORY_PAGE_TITLE))) || + curdoc.bookmark != NULL || + (lynxjumpfile && + curdoc.address && + !strcmp(lynxjumpfile, curdoc.address))) { + LYUserSpecifiedURL = TRUE; + } else if (no_filereferer == TRUE && + curdoc.address != NULL && + isFILE_URL(curdoc.address)) { + LYNoRefererForThis = TRUE; + } + newdoc.link = 0; + *force_load = TRUE; /* force MainLoop to reload */ +#ifdef USE_PRETTYSRC + psrc_view = FALSE; /* we get here if link is not internal */ +#endif + +#if defined(DIRED_SUPPORT) && !defined(__DJGPP__) + if (lynx_edit_mode) { + DIRED_UNCACHE_2; + /* + * Unescaping any slash chars in the URL, but avoid double + * unescaping and too-early unescaping of other chars. - KW + */ + HTUnEscapeSome(newdoc.address, "/"); + /* avoid stripping final slash for root dir - kw */ + if (strcasecomp(newdoc.address, "file://localhost/")) + strip_trailing_slash(newdoc.address); + } +#endif /* DIRED_SUPPORT && !__DJGPP__ */ + if (isLYNXCOOKIE(curdoc.address) + || isLYNXCACHE(curdoc.address)) { + HTuncache_current_document(); + } + } + } + return 0; +} +/* + * If the given form link does not point to the requested type, search for + * the first link belonging to the form which does. If there are none, + * return null. + */ +#define SameFormAction(form,submit) \ + ((submit) \ + ? (F_SUBMITLIKE((form)->type)) \ + : ((form)->type == F_RESET_TYPE)) + +static FormInfo *FindFormAction(FormInfo * given, int submit) +{ + FormInfo *result = NULL; + FormInfo *fi; + int i; + + if (given == NULL) { + HTAlert(LINK_NOT_IN_FORM); + } else if (SameFormAction(given, submit)) { + result = given; + } else { + for (i = 0; i < nlinks; i++) { + if ((fi = links[i].l_form) != 0 && + fi->number == given->number && + (SameFormAction(fi, submit))) { + result = fi; + break; + } + } + } + return result; +} + +static FormInfo *MakeFormAction(FormInfo * given, int submit) +{ + FormInfo *result = 0; + + if (given != 0) { + result = typecalloc(FormInfo); + + if (result == NULL) + outofmem(__FILE__, "MakeFormAction"); + + *result = *given; + if (submit) { + if (result->submit_action == 0) { + PerFormInfo *pfi = HText_PerFormInfo(result->number); + + *result = pfi->data; + } + result->type = F_SUBMIT_TYPE; + } else { + result->type = F_RESET_TYPE; + } + result->number = given->number; + } + return result; +} + +static void handle_LYK_SUBMIT(int cur, DocInfo *doc, BOOLEAN *refresh_screen) +{ + FormInfo *form = FindFormAction(links[cur].l_form, 1); + FormInfo *make = NULL; + char *save_submit_action = NULL; + + if (form == 0) { + make = MakeFormAction(links[cur].l_form, 1); + form = make; + } + + if (form != 0) { + StrAllocCopy(save_submit_action, form->submit_action); + form->submit_action = HTPrompt(EDIT_SUBMIT_URL, form->submit_action); + + if (isEmpty(form->submit_action) || + (!isLYNXCGI(form->submit_action) && + StrNCmp(form->submit_action, "http", 4))) { + HTUserMsg(FORM_ACTION_NOT_HTTP_URL); + } else { + HTInfoMsg(SUBMITTING_FORM); + HText_SubmitForm(form, doc, form->name, form->value); + *refresh_screen = TRUE; + } + + StrAllocCopy(form->submit_action, save_submit_action); + FREE(make); + } +} + +static void handle_LYK_RESET(int cur, BOOLEAN *refresh_screen) +{ + FormInfo *form = FindFormAction(links[cur].l_form, 0); + FormInfo *make = NULL; + + if (form == 0) { + make = MakeFormAction(links[cur].l_form, 0); + form = make; + } + + if (form != 0) { + HTInfoMsg(RESETTING_FORM); + HText_ResetForm(form); + *refresh_screen = TRUE; + FREE(make); + } +} + +#ifdef USE_ADDRLIST_PAGE +static BOOLEAN handle_LYK_ADDRLIST(int *cmd) +{ + /* + * Don't do if already viewing list addresses page. + */ + if (LYIsUIPage(curdoc.address, UIP_ADDRLIST_PAGE)) { + /* + * Already viewing list page, so get out. + */ + *cmd = LYK_PREV_DOC; + return TRUE; + } + + /* + * Print address list page to file. + */ + if (showlist(&newdoc, FALSE) < 0) + return FALSE; + StrAllocCopy(newdoc.title, ADDRLIST_PAGE_TITLE); + /* + * showlist will set newdoc's other fields. It may leave post_data intact + * so the list can be used to follow internal links in the current document + * even if it is a POST response. - kw + */ + + if (LYValidate || check_realm) { + LYPermitURL = TRUE; + StrAllocCopy(lynxlistfile, newdoc.address); + } + return FALSE; +} +#endif /* USE_ADDRLIST_PAGE */ + +static void handle_LYK_ADD_BOOKMARK(BOOLEAN *refresh_screen, + int *old_c, + int real_c) +{ + int c; + + if (LYValidate) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(BOOKMARKS_DISABLED); + } + return; + } + + if (!LYIsUIPage(curdoc.address, UIP_HISTORY) && + !LYIsUIPage(curdoc.address, UIP_SHOWINFO) && + !LYIsUIPage(curdoc.address, UIP_PRINT_OPTIONS) && +#ifdef DIRED_SUPPORT + !LYIsUIPage(curdoc.address, UIP_DIRED_MENU) && + !LYIsUIPage(curdoc.address, UIP_PERMIT_OPTIONS) && + !LYIsUIPage(curdoc.address, UIP_UPLOAD_OPTIONS) && +#endif /* DIRED_SUPPORT */ + !LYIsUIPage(curdoc.address, UIP_DOWNLOAD_OPTIONS) && + !isLYNXCOOKIE(curdoc.address) && + !isLYNXCACHE(curdoc.address) && + !LYIsUIPage(curdoc.address, UIP_OPTIONS_MENU) && + ((nlinks <= 0) || + (links[curdoc.link].lname != NULL && + !isLYNXHIST(links[curdoc.link].lname) && + !isLYNXPRINT(links[curdoc.link].lname) && + !isLYNXDIRED(links[curdoc.link].lname) && + !isLYNXDOWNLOAD(links[curdoc.link].lname) && + !isLYNXCOOKIE(links[curdoc.link].lname) && + !isLYNXCACHE(links[curdoc.link].lname) && + !isLYNXPRINT(links[curdoc.link].lname)))) { + if (nlinks > 0) { + if (curdoc.post_data == NULL && + curdoc.bookmark == NULL && + !LYIsUIPage(curdoc.address, UIP_LIST_PAGE) && + !LYIsUIPage(curdoc.address, UIP_ADDRLIST_PAGE) && + !LYIsUIPage(curdoc.address, UIP_VLINKS)) { + /* + * The document doesn't have POST content, and is not a + * bookmark file, nor is the list or visited links page, so we + * can save either that or the link. - FM + */ + _statusline(BOOK_D_L_OR_CANCEL); + if ((c = LYgetch_single()) == 'D') { + save_bookmark_link(curdoc.address, curdoc.title); + *refresh_screen = TRUE; /* MultiBookmark support */ + goto check_add_bookmark_to_self; + } + } else { + if (LYMultiBookmarks == MBM_OFF && + curdoc.bookmark != NULL && + strstr(curdoc.address, + (*bookmark_page == '.' + ? (bookmark_page + 1) + : bookmark_page)) != NULL) { + /* + * If multiple bookmarks are disabled, offer the L)ink or + * C)ancel, but with wording which indicates that the link + * already exists in this bookmark file. - FM + */ + _statusline(MULTIBOOKMARKS_SELF); + } else if (curdoc.post_data != NULL && + links[curdoc.link].type == WWW_INTERN_LINK_TYPE) { + /* + * Internal link, and document has POST content. + */ + HTUserMsg(NOBOOK_POST_FORM); + return; + } else { + /* + * Only offer the link in a document with POST content, or + * if the current document is a bookmark file and multiple + * bookmarks are enabled. - FM + */ + _statusline(BOOK_L_OR_CANCEL); + } + c = LYgetch_single(); + } + if (c == 'L') { + if (curdoc.post_data != NULL && + links[curdoc.link].type == WWW_INTERN_LINK_TYPE) { + /* + * Internal link, and document has POST content. + */ + HTUserMsg(NOBOOK_POST_FORM); + return; + } + /* + * User does want to save the link. - FM + */ + if (links[curdoc.link].type != WWW_FORM_LINK_TYPE) { + save_bookmark_link(links[curdoc.link].lname, + LYGetHiliteStr(curdoc.link, 0)); + *refresh_screen = TRUE; /* MultiBookmark support */ + } else { + HTUserMsg(NOBOOK_FORM_FIELD); + return; + } + } else { + return; + } + } else if (curdoc.post_data != NULL) { + /* + * No links, and document has POST content. - FM + */ + HTUserMsg(NOBOOK_POST_FORM); + return; + } else if (curdoc.bookmark != NULL) { + /* + * It's a bookmark file from which all of the links were deleted. + * - FM + */ + HTUserMsg(BOOKMARKS_NOLINKS); + return; + } else { + _statusline(BOOK_D_OR_CANCEL); + if (LYgetch_single() == 'D') { + save_bookmark_link(curdoc.address, curdoc.title); + *refresh_screen = TRUE; /* MultiBookmark support */ + } else { + return; + } + } + check_add_bookmark_to_self: + if (curdoc.bookmark && BookmarkPage && + !strcmp(curdoc.bookmark, BookmarkPage)) { + HTuncache_current_document(); + move_address(&newdoc, &curdoc); + StrAllocCopy(newdoc.bookmark, curdoc.bookmark); + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + newdoc.internal_link = FALSE; + } + } else { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NOBOOK_HSML); + } + } +} + +static void handle_LYK_CLEAR_AUTH(int *old_c, + int real_c) +{ + if (*old_c != real_c) { + *old_c = real_c; + if (HTConfirm(CLEAR_ALL_AUTH_INFO)) { + FREE(authentication_info[0]); + FREE(authentication_info[1]); + FREE(proxyauth_info[0]); + FREE(proxyauth_info[1]); + HTClearHTTPAuthInfo(); +#ifndef DISABLE_NEWS + HTClearNNTPAuthInfo(); +#endif +#ifndef DISABLE_FTP + HTClearFTPPassword(); +#endif + HTUserMsg(AUTH_INFO_CLEARED); + } else { + HTUserMsg(CANCELLED); + } + } +} + +static int handle_LYK_COMMAND(bstring **user_input) +{ + LYKeymapCode ch; + Kcmd *mp; + char *src, *tmp; + + BStrCopy0((*user_input), ""); + _statusline(": "); + if (LYgetBString(user_input, FALSE, 0, RECALL_CMD) >= 0) { + src = LYSkipBlanks((*user_input)->str); + tmp = LYSkipNonBlanks(src); + *tmp = 0; + ch = ((mp = LYStringToKcmd(src)) != 0) ? mp->code : LYK_UNKNOWN; + CTRACE((tfp, "LYK_COMMAND(%s.%s) = %d\n", src, tmp, (int) ch)); + if (ch == 0) { + return *src ? -1 : 0; + } + /* FIXME: reuse the rest of the buffer for parameters */ + return ch; + } + return 0; +} + +static void handle_LYK_COMMENT(BOOLEAN *refresh_screen, + char **owner_address_p, + int *old_c, + int real_c) +{ + int c; + + if (!*owner_address_p && + strncasecomp(curdoc.address, "http", 4)) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_OWNER); + } + } else if (no_mail) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(MAIL_DISALLOWED); + } + } else { + if (HTConfirmDefault(CONFIRM_COMMENT, NO)) { + if (!*owner_address_p) { + /* + * No owner defined, so make a guess and and offer it to the + * user. - FM + */ + char *address = NULL; + char *temp = HTParse(curdoc.address, "", PARSE_PATH); + char *cp; + + if (temp != NULL) { + HTUnEscape(temp); + if (LYIsTilde(*temp) && strlen(temp) > 1) { + /* + * It's a ~user URL so guess user@host. - FM + */ + if ((cp = StrChr((temp + 1), '/')) != NULL) + *cp = '\0'; + StrAllocCopy(address, STR_MAILTO_URL); + StrAllocCat(address, (temp + 1)); + StrAllocCat(address, "@"); + } + FREE(temp); + } + if (address == NULL) + /* + * Wasn't a ~user URL so guess WebMaster@host. - FM + */ + StrAllocCopy(address, "mailto:WebMaster@"); + temp = HTParse(curdoc.address, "", PARSE_HOST); + StrAllocCat(address, temp); + HTSprintf0(&temp, NO_OWNER_USE, address); + c = HTConfirmDefault(temp, NO); + FREE(temp); + if (c == YES) { + StrAllocCopy(*owner_address_p, address); + FREE(address); + } else { + FREE(address); + return; + } + } + if (is_url(*owner_address_p) != MAILTO_URL_TYPE) { + /* + * The address is a URL. Just follow the link. + */ + set_address(&newdoc, *owner_address_p); + newdoc.internal_link = FALSE; + } else { + /* + * The owner_address is a mailto: URL. + */ + const char *kp = HText_getRevTitle(); + const char *id = HText_getMessageID(); + char *tmptitle = NULL; + + if (!kp && HTMainAnchor) { + kp = HTAnchor_subject(HTMainAnchor); + if (non_empty(kp)) { + if (strncasecomp(kp, "Re: ", 4)) { + StrAllocCopy(tmptitle, "Re: "); + StrAllocCat(tmptitle, kp); + kp = tmptitle; + } + } + } + + if (StrChr(*owner_address_p, ':') != NULL) + /* + * Send a reply. The address is after the colon. + */ + reply_by_mail(StrChr(*owner_address_p, ':') + 1, + curdoc.address, + NonNull(kp), id); + else + reply_by_mail(*owner_address_p, curdoc.address, + NonNull(kp), id); + + FREE(tmptitle); + *refresh_screen = TRUE; /* to force a showpage */ + } + } + } +} + +#ifdef USE_CACHEJAR +static BOOLEAN handle_LYK_CACHE_JAR(int *cmd) +{ + /* + * Don't do this if already viewing cache jar. + */ + if (!isLYNXCACHE(curdoc.address)) { + set_address(&newdoc, STR_LYNXCACHE "/"); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + LYforce_no_cache = TRUE; + if (LYValidate || check_realm) { + LYPermitURL = TRUE; + } + } else { + /* + * If already in the cache jar, get out. + */ + *cmd = LYK_PREV_DOC; + return TRUE; + } + return FALSE; +} +#endif /* USE_CACHEJAR */ + +static BOOLEAN handle_LYK_COOKIE_JAR(int *cmd) +{ + /* + * Don't do if already viewing the cookie jar. + */ + if (!isLYNXCOOKIE(curdoc.address)) { + set_address(&newdoc, "LYNXCOOKIE:/"); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + LYforce_no_cache = TRUE; + if (LYValidate || check_realm) { + LYPermitURL = TRUE; + } + } else { + /* + * If already in the cookie jar, get out. + */ + *cmd = LYK_PREV_DOC; + return TRUE; + } + return FALSE; +} + +#if defined(DIRED_SUPPORT) +static void handle_LYK_CREATE(void) +{ + if (lynx_edit_mode && !no_dired_support) { + if (local_create(&curdoc) > 0) { + DIRED_UNCACHE_1; + move_address(&newdoc, &curdoc); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.line = curdoc.line; + newdoc.link = curdoc.link > -1 ? curdoc.link : 0; + LYclear(); + } + } +} +#endif /* DIRED_SUPPORT */ + +static void handle_LYK_DEL_BOOKMARK(BOOLEAN *refresh_screen, + int *old_c, + int real_c) +{ + if (curdoc.bookmark != NULL) { + if (HTConfirmDefault(CONFIRM_BOOKMARK_DELETE, NO) != YES) + return; + remove_bookmark_link(links[curdoc.link].anchor_number - 1, + curdoc.bookmark); + } else { /* behave like REFRESH for backward compatibility */ + *refresh_screen = TRUE; + if (*old_c != real_c) { + *old_c = real_c; + lynx_force_repaint(); + } + return; + } + do_cleanup_after_delete(); +} + +#if defined(DIRED_SUPPORT) || defined(VMS) +static void handle_LYK_DIRED_MENU(BOOLEAN *refresh_screen, + int *old_c GCC_UNUSED, + int real_c GCC_UNUSED) +{ +#ifdef VMS + char *cp, *temp = 0; + const char *test = HTGetProgramPath(ppCSWING); + + /* + * Check if the CSwing Directory/File Manager is available. Will be + * disabled if CSWING path is NULL, zero-length, or "none" (case + * insensitive), if no_file_url was set via the file_url restriction, if + * no_goto_file was set for the anonymous account, or if HTDirAccess was + * set to HT_DIR_FORBID or HT_DIR_SELECTIVE via the -nobrowse or -selective + * switches. - FM + */ + if (isEmpty(test) || + !strcasecomp(test, "none") || + no_file_url || no_goto_file || + HTDirAccess == HT_DIR_FORBID || + HTDirAccess == HT_DIR_SELECTIVE) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(DFM_NOT_AVAILABLE); + } + return; + } + + /* + * If we are viewing a local directory listing or a local file which is not + * temporary, invoke CSwing with the URL's directory converted to VMS path + * specs and passed as the argument, so we start up CSwing positioned on + * that node of the directory tree. Otherwise, pass the current default + * directory as the argument. - FM + */ + if (LYisLocalFile(curdoc.address) && + strncasecomp(curdoc.address, + lynx_temp_space, strlen(lynx_temp_space))) { + /* + * We are viewing a local directory or a local file which is not + * temporary. - FM + */ + struct stat stat_info; + + cp = HTParse(curdoc.address, "", PARSE_PATH | PARSE_PUNCTUATION); + HTUnEscape(cp); + if (HTStat(cp, &stat_info) == -1) { + CTRACE((tfp, "mainloop: Can't stat %s\n", cp)); + FREE(cp); + HTSprintf0(&temp, "%s []", HTGetProgramPath(ppCSWING)); + *refresh_screen = TRUE; /* redisplay */ + } else { + char *VMSdir = NULL; + + if (S_ISDIR(stat_info.st_mode)) { + /* + * We're viewing a local directory. Make that the CSwing + * argument. - FM + */ + LYAddPathSep(&cp); + StrAllocCopy(VMSdir, HTVMS_name("", cp)); + FREE(cp); + } else { + /* + * We're viewing a local file. Make its directory the CSwing + * argument. - FM + */ + StrAllocCopy(VMSdir, HTVMS_name("", cp)); + FREE(cp); + if ((cp = strrchr(VMSdir, ']')) != NULL) { + *(cp + 1) = '\0'; + } else if ((cp = strrchr(VMSdir, ':')) != NULL) { + *(cp + 1) = '\0'; + } + } + HTSprintf0(&temp, "%s %s", HTGetProgramPath(ppCSWING), VMSdir); + FREE(VMSdir); + /* + * Uncache the current document in case we change, move, or delete + * it during the CSwing session. - FM + */ + /* could use DIRED_UNCACHE_1 but it's currently only defined + for dired - kw */ + HTuncache_current_document(); + move_address(&newdoc, &curdoc); + StrAllocCopy(newdoc.title, NonNull(curdoc.title)); + StrAllocCopy(newdoc.bookmark, curdoc.bookmark); + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + } + } else { + /* + * We're not viewing a local directory or file. Pass CSwing the + * current default directory as an argument and don't uncache the + * current document. - FM + */ + HTSprintf0(&temp, "%s []", HTGetProgramPath(ppCSWING)); + *refresh_screen = TRUE; /* redisplay */ + } + stop_curses(); + LYSystem(temp); + start_curses(); + FREE(temp); +#else + /* + * Don't do if not allowed or already viewing the menu. + */ + if (lynx_edit_mode && !no_dired_support && + !LYIsUIPage(curdoc.address, UIP_DIRED_MENU) && + strcmp(NonNull(curdoc.title), DIRED_MENU_TITLE)) { + dired_options(&curdoc, &newdoc.address); + *refresh_screen = TRUE; /* redisplay */ + } +#endif /* VMS */ +} +#endif /* defined(DIRED_SUPPORT) || defined(VMS) */ + +static int handle_LYK_DOWNLOAD(int *cmd, + int *old_c, + int real_c) +{ + + /* + * Don't do if both download and disk_save are restricted. + */ + if (LYValidate || + (no_download && !override_no_download && no_disk_save)) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(DOWNLOAD_DISABLED); + } + return 0; + } + + /* + * Don't do if already viewing download options page. + */ + if (LYIsUIPage(curdoc.address, UIP_DOWNLOAD_OPTIONS)) + return 0; + + if (do_change_link() == -1) + return 1; /* mouse stuff was confused, ignore - kw */ + if (nlinks > 0) { + if (links[curdoc.link].type == WWW_FORM_LINK_TYPE) { + if (links[curdoc.link].l_form->type == F_SUBMIT_TYPE || + links[curdoc.link].l_form->type == F_IMAGE_SUBMIT_TYPE || + links[curdoc.link].l_form->type == F_TEXT_SUBMIT_TYPE) { + if (links[curdoc.link].l_form->submit_method == + URL_MAIL_METHOD) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_DOWNLOAD_MAILTO_ACTION); + } + return 0; + } + if (isEmpty(links[curdoc.link].l_form->submit_action) || + isLYNXOPTIONS(links[curdoc.link].l_form->submit_action)) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_DOWNLOAD_SPECIAL); + } + return 0; + } + HTOutputFormat = WWW_DOWNLOAD; + LYforce_no_cache = TRUE; + *cmd = LYK_ACTIVATE; + return 2; + } + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_DOWNLOAD_INPUT); + } + + } else if (isLYNXCOOKIE(curdoc.address)) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_DOWNLOAD_COOKIES); + } + } else if (LYIsUIPage(curdoc.address, UIP_PRINT_OPTIONS)) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_DOWNLOAD_PRINT_OP); + } +#ifdef DIRED_SUPPORT + } else if (LYIsUIPage(curdoc.address, UIP_UPLOAD_OPTIONS)) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_DOWNLOAD_UPLOAD_OP); + } + + } else if (LYIsUIPage(curdoc.address, UIP_PERMIT_OPTIONS)) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_DOWNLOAD_PERMIT_OP); + } + + } else if (lynx_edit_mode && !no_dired_support && + !LYstrstr(links[curdoc.link].lname, "/SugFile=")) { + /* + * Don't bother making a /tmp copy of the local file. + */ + static DocInfo temp; + + copy_address(&temp, &newdoc); + set_address(&newdoc, links[curdoc.link].lname); + if (LYdownload_options(&newdoc.address, + links[curdoc.link].lname) < 0) + copy_address(&newdoc, &temp); + else + newdoc.internal_link = FALSE; + LYFreeDocInfo(&temp); +#endif /* DIRED_SUPPORT */ + + } else if (LYIsUIPage(curdoc.address, UIP_HISTORY) && + isLYNXHIST(links[curdoc.link].lname)) { + int number = atoi(links[curdoc.link].lname + LEN_LYNXHIST); + + if (number >= nhist || number < 0) { + HTUserMsg(NO_DOWNLOAD_SPECIAL); + return 0; + } + if ((HDOC(number).post_data != NULL && + HDOC(number).safe != TRUE) && + HTConfirm(CONFIRM_POST_RESUBMISSION) == FALSE) { + HTInfoMsg(CANCELLED); + return 0; + } + /* + * OK, we download from history page, restore URL from stack. + */ + copy_address(&newdoc, &HDOC(number)); + StrAllocCopy(newdoc.title, LYGetHiliteStr(curdoc.link, 0)); + StrAllocCopy(newdoc.bookmark, HDOC(number).bookmark); + LYFreePostData(&newdoc); + if (HDOC(number).post_data) + BStrCopy(newdoc.post_data, + HDOC(number).post_data); + if (HDOC(number).post_content_type) + StrAllocCopy(newdoc.post_content_type, + HDOC(number).post_content_type); + newdoc.isHEAD = HDOC(number).isHEAD; + newdoc.safe = HDOC(number).safe; + newdoc.internal_link = FALSE; + newdoc.link = (user_mode == NOVICE_MODE) ? 1 : 0; + HTOutputFormat = WWW_DOWNLOAD; + LYUserSpecifiedURL = TRUE; + /* + * Force the document to be reloaded. + */ + LYforce_no_cache = TRUE; + + } else if (!StrNCmp(links[curdoc.link].lname, "data:", 5)) { + if (*old_c != real_c) { + *old_c = real_c; + HTAlert(UNSUPPORTED_DATA_URL); + } + + } else if (isLYNXCOOKIE(links[curdoc.link].lname) || + isLYNXCACHE(links[curdoc.link].lname) || + isLYNXDIRED(links[curdoc.link].lname) || + isLYNXDOWNLOAD(links[curdoc.link].lname) || + isLYNXPRINT(links[curdoc.link].lname) || + isLYNXOPTIONS(links[curdoc.link].lname) || + isLYNXHIST(links[curdoc.link].lname) || + /* handled above if valid - kw */ +/* @@@ should next two be downloadable? - kw */ + isLYNXHIST(links[curdoc.link].lname) || + isLYNXCFLAGS(links[curdoc.link].lname) || + isLYNXEXEC(links[curdoc.link].lname) || + isLYNXPROG(links[curdoc.link].lname)) { + HTUserMsg(NO_DOWNLOAD_SPECIAL); + + } else if (isMAILTO_URL(links[curdoc.link].lname)) { + HTUserMsg(NO_DOWNLOAD_MAILTO_LINK); + + /* + * From here on we could have a remote host, so check if that's + * allowed. + * + * We copy all these checks from getfile() to LYK_DOWNLOAD here + * because LYNXDOWNLOAD:// will NOT be pushing the previous + * document into the history stack so preserve getfile() from + * returning a wrong status (NULLFILE). + */ + } else if (local_host_only && + !(LYisLocalHost(links[curdoc.link].lname) || + LYisLocalAlias(links[curdoc.link].lname))) { + HTUserMsg(ACCESS_ONLY_LOCALHOST); + } else { /* Not a forms, options or history link */ + /* + * Follow a normal link or anchor. Note that if it's an anchor + * within the same document, entire document will be downloaded. + */ + set_address(&newdoc, links[curdoc.link].lname); + StrAllocCopy(newdoc.title, LYGetHiliteStr(curdoc.link, 0)); + /* + * Might be an internal link in the same doc from a POST form. If + * so, don't free the content. - kw + */ + if (track_internal_links) { + if (links[curdoc.link].type != WWW_INTERN_LINK_TYPE) { + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + } + } else { + /* + * Might be an anchor in the same doc from a POST form. If so, + * don't free the content. -- FM + */ + if (are_different(&curdoc, &newdoc)) { + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + } + } + newdoc.internal_link = FALSE; + newdoc.link = (user_mode == NOVICE_MODE) ? 1 : 0; + HTOutputFormat = WWW_DOWNLOAD; + /* + * Force the document to be reloaded. + */ + LYforce_no_cache = TRUE; + } + } else if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_DOWNLOAD_CHOICE); + } + return 0; +} + +static void handle_LYK_DOWN_xxx(int *old_c, + int real_c, + int scroll_by) +{ + int i; + + if (more_text) { + LYChgNewline(scroll_by); + if (nlinks > 0 && curdoc.link > -1 && + links[curdoc.link].ly > scroll_by) { + newdoc.link = curdoc.link; + for (i = 0; links[i].ly <= scroll_by; i++) + --newdoc.link; + } + } else if (*old_c != real_c) { + HandleForwardWraparound(); + } +} + +static void handle_LYK_DOWN_HALF(int *old_c, + int real_c) +{ + handle_LYK_DOWN_xxx(old_c, real_c, display_lines / 2); +} + +static void handle_LYK_DOWN_LINK(int *follow_col, + int *old_c, + int real_c) +{ + if (curdoc.link < (nlinks - 1)) { /* more links? */ + int newlink; + + if (*follow_col == -1) { + const char *text = LYGetHiliteStr(curdoc.link, 0); + + *follow_col = links[curdoc.link].lx; + + if (text != NULL) + *follow_col += (int) strlen(text) / 2; + } + + newlink = find_link_near_col(*follow_col, 1); + if (newlink > -1) { + set_curdoc_link(newlink); + } else if (more_text) { /* next page */ + LYChgNewline(display_lines); + } else if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_LINKS_BELOW); + return; + } + } else if (more_text) { /* next page */ + LYChgNewline(display_lines); + } else if (*old_c != real_c) { + HandleForwardWraparound(); + } +} + +static void handle_LYK_DOWN_TWO(int *old_c, + int real_c) +{ + handle_LYK_DOWN_xxx(old_c, real_c, 2); +} + +static int handle_LYK_DWIMEDIT(int *cmd, + int *old_c, + int real_c) +{ +#ifdef TEXTAREA_AUTOEXTEDIT + /* + * If we're in a forms TEXTAREA, invoke the editor on *its* contents, + * rather than attempting to edit the html source document. KED + */ + if (nlinks > 0 && + LinkIsTextarea(curdoc.link)) { + *cmd = LYK_EDITTEXTAREA; + return 2; + } + + /* + * If we're in a forms TEXT type, tell user the request is bogus (though in + * reality, without this trap, if the document with the TEXT field is + * local, the editor *would* be invoked on the source .html file; eg, the + * o(ptions) form tempfile). + * + * [This is done to avoid possible user confusion, due to auto invocation + * of the editor on the TEXTAREA's contents via the above if() statement.] + */ + if (nlinks > 0 && + links[curdoc.link].type == WWW_FORM_LINK_TYPE && + links[curdoc.link].l_form->type == F_TEXT_TYPE) { + HTUserMsg(CANNOT_EDIT_FIELD); + return 1; + } + + if (no_editor) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(ANYEDIT_DISABLED); + } + return 1; + } +#endif /* TEXTAREA_AUTOEXTEDIT */ + return 0; +} + +static int handle_LYK_ECGOTO(int *ch, + bstring **user_input, + char **old_user_input, + int *old_c, + int real_c) +{ + if (no_goto && !LYValidate) { + /* + * Go to not allowed. - FM + */ + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(GOTO_DISALLOWED); + } + return 0; + } +#ifdef DIRED_SUPPORT + if (LYIsUIPage(curdoc.address, UIP_DIRED_MENU) || + LYIsUIPage(curdoc.address, UIP_PERMIT_OPTIONS) || + LYIsUIPage(curdoc.address, UIP_UPLOAD_OPTIONS)) { + /* + * Disallow editing of File Management URLs. - FM + */ + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(EDIT_FM_MENU_URLS_DISALLOWED); + } + return 0; + } +#endif /* DIRED_SUPPORT */ + + /* + * Save the current user_input string, and load the current + * document's address. + */ + StrAllocCopy(*old_user_input, (*user_input)->str); + BStrCopy0((*user_input), curdoc.address); + + /* + * Warn the user if the current document has POST data associated with it. + * - FM + */ + if (curdoc.post_data) + HTAlert(CURRENT_DOC_HAS_POST_DATA); + + /* + * Offer the current document's URL for editing. - FM + */ + _statusline(EDIT_CURDOC_URL); + if (((*ch = LYgetBString(user_input, FALSE, 0, RECALL_URL)) >= 0) && + !isBEmpty(*user_input) && + strcmp((*user_input)->str, curdoc.address)) { + LYTrimAllStartfile((*user_input)->str); + if (!isBEmpty(*user_input)) { + return 2; + } + } + /* + * User cancelled via ^G, a full deletion, or not modifying the URL. - FM + */ + HTInfoMsg(CANCELLED); + BStrCopy0((*user_input), *old_user_input); + FREE(*old_user_input); + return 0; +} + +static void handle_LYK_EDIT(int *old_c, + int real_c) +{ +#ifdef DIRED_SUPPORT + char *cp; + char *tp = NULL; + struct stat dir_info; +#endif /* DIRED_SUPPORT */ + + if (no_editor) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(EDIT_DISABLED); + } + } +#ifdef DIRED_SUPPORT + /* + * Allow the user to edit the link rather than curdoc in edit mode. + */ + else if (lynx_edit_mode && + non_empty(editor) && !no_dired_support) { + if (nlinks > 0) { + cp = links[curdoc.link].lname; + if (is_url(cp) == FILE_URL_TYPE) { + cp = HTfullURL_toFile(cp); + StrAllocCopy(tp, cp); + FREE(cp); + + if (stat(tp, &dir_info) == -1) { + HTAlert(NO_STATUS); + } else { + if (S_ISREG(dir_info.st_mode)) { + StrAllocCopy(tp, links[curdoc.link].lname); + HTUnEscapeSome(tp, "/"); + if (edit_current_file(tp, curdoc.link, -1)) { + DIRED_UNCACHE_1; + move_address(&newdoc, &curdoc); +#ifdef NO_SEEK_OLD_POSITION + /* + * Go to top of file. + */ + newdoc.line = 1; + newdoc.link = 0; +#else + /* + * Seek old position, which probably changed. + */ + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; +#endif /* NO_SEEK_OLD_POSITION */ + LYclear(); /* clear the screen */ + } + } + } + FREE(tp); + } + } + } +#endif /* DIRED_SUPPORT */ + else if (non_empty(editor)) { + if (edit_current_file(newdoc.address, curdoc.link, LYGetNewline())) { + HTuncache_current_document(); + LYforce_no_cache = TRUE; /*force reload of document */ + free_address(&curdoc); /* so it doesn't get pushed */ +#ifdef NO_SEEK_OLD_POSITION + /* + * Go to top of file. + */ + newdoc.line = 1; + newdoc.link = 0; +#else + /* + * Seek old position, which probably changed. + */ + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; +#endif /* NO_SEEK_OLD_POSITION */ + LYclear(); /* clear the screen */ + } + + } else { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_EDITOR); + } + } +} + +static void handle_LYK_DWIMHELP(const char **cshelpfile) +{ + /* + * Currently a help file different from the main 'helpfile' is shown only + * if current link is a text input form field. - kw + */ + if (curdoc.link >= 0 && curdoc.link < nlinks && + !FormIsReadonly(links[curdoc.link].l_form) && + LinkIsTextLike(curdoc.link)) { + *cshelpfile = STR_LYNXEDITMAP; + } +} + +static void handle_LYK_EDITMAP(int *old_c, + int real_c) +{ + if (*old_c != real_c) { + *old_c = real_c; + set_address(&newdoc, STR_LYNXEDITMAP); + StrAllocCopy(newdoc.title, CURRENT_EDITMAP_TITLE); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; +#if defined(DIRED_SUPPORT) && defined(OK_OVERRIDE) + /* + * Remember whether we are in dired menu so we can display the right + * keymap. + */ + if (!no_dired_support) { + prev_lynx_edit_mode = lynx_edit_mode; + } +#endif /* DIRED_SUPPORT && OK_OVERRIDE */ + LYforce_no_cache = TRUE; + } +} + +static void handle_LYK_EDIT_TEXTAREA(BOOLEAN *refresh_screen, + int *old_c, + int real_c) +{ + if (no_editor) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(ANYEDIT_DISABLED); + } + } else if (isEmpty(editor)) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_EDITOR); + } + } else if (LinkIsTextarea(curdoc.link)) { + /* + * if the current link is in a form TEXTAREA, it requires handling + * for the possible multiple lines. + */ + + /* stop screen */ + stop_curses(); + + (void) HText_EditTextArea(&links[curdoc.link]); + + /* + * TODO: + * Move cursor "n" lines from the current line to position it on the + * 1st trailing blank line in the now edited TEXTAREA. If the target + * line/ anchor requires us to scroll up/down, position the target in + * the approximate center of the screen. + */ + + /* curdoc.link += n; */ + /* works, except for page crossing, */ + /* damnit; why is nothing ever easy */ + + /* start screen */ + start_curses(); + *refresh_screen = TRUE; + + } else if (LinkIsTextLike(curdoc.link)) { + /* + * other text fields are single-line + */ + stop_curses(); + HText_EditTextField(&links[curdoc.link]); + start_curses(); + *refresh_screen = TRUE; + } else { + + HTInfoMsg(NOT_IN_TEXTAREA_NOEDIT); + } +} + +static int handle_LYK_ELGOTO(int *ch, + bstring **user_input, + char **old_user_input, + int *old_c, + int real_c) +{ + if (no_goto && !LYValidate) { + /* + * Go to not allowed. - FM + */ + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(GOTO_DISALLOWED); + } + return 0; + } + if (!(nlinks > 0 && curdoc.link > -1) || + (links[curdoc.link].type == WWW_FORM_LINK_TYPE && + links[curdoc.link].l_form->type != F_SUBMIT_TYPE && + links[curdoc.link].l_form->type != F_IMAGE_SUBMIT_TYPE && + links[curdoc.link].l_form->type != F_TEXT_SUBMIT_TYPE)) { + /* + * No links on page, or not a normal link or form submit button. - FM + */ + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NOT_ON_SUBMIT_OR_LINK); + } + return 0; + } + if ((links[curdoc.link].type == WWW_FORM_LINK_TYPE) && + (isEmpty(links[curdoc.link].l_form->submit_action))) { + /* + * Form submit button with no ACTION defined. - FM + */ + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_FORM_ACTION); + } + return 0; + } +#ifdef DIRED_SUPPORT + if (isLYNXDIRED(links[curdoc.link].lname) || + LYIsUIPage(curdoc.address, UIP_DIRED_MENU) || + LYIsUIPage(curdoc.address, UIP_PERMIT_OPTIONS) || + LYIsUIPage(curdoc.address, UIP_UPLOAD_OPTIONS)) { + /* + * Disallow editing of File Management URLs. - FM + */ + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(EDIT_FM_MENU_URLS_DISALLOWED); + } + return 0; + } +#endif /* DIRED_SUPPORT */ + + /* + * Save the current user_input string, and load the current link's + * address. - FM + */ + StrAllocCopy(*old_user_input, (*user_input)->str); + BStrCopy0((*user_input), + ((links[curdoc.link].type == WWW_FORM_LINK_TYPE) + ? links[curdoc.link].l_form->submit_action + : links[curdoc.link].lname)); + /* + * Offer the current link's URL for editing. - FM + */ + _statusline(EDIT_CURLINK_URL); + if (((*ch = LYgetBString(user_input, FALSE, 0, RECALL_URL)) >= 0) && + !isBEmpty(*user_input) && + strcmp((*user_input)->str, + ((links[curdoc.link].type == WWW_FORM_LINK_TYPE) + ? links[curdoc.link].l_form->submit_action + : links[curdoc.link].lname))) { + LYTrimAllStartfile((*user_input)->str); + if (!isBEmpty(*user_input)) { + return 2; + } + } + /* + * User cancelled via ^G, a full deletion, or not modifying the URL. - FM + */ + HTInfoMsg(CANCELLED); + BStrCopy0((*user_input), *old_user_input); + FREE(*old_user_input); + return 0; +} + +#ifdef USE_EXTERNALS +static void handle_LYK_EXTERN_LINK(BOOLEAN *refresh_screen) +{ + if ((nlinks > 0) && (links[curdoc.link].lname != NULL)) { + run_external(links[curdoc.link].lname, FALSE); + *refresh_screen = TRUE; + } +} + +static void handle_LYK_EXTERN_PAGE(BOOLEAN *refresh_screen) +{ + if (curdoc.address != NULL) { + run_external(curdoc.address, FALSE); + *refresh_screen = TRUE; + } +} +#endif + +static BOOLEAN handle_LYK_FASTBACKW_LINK(int *cmd, + int *old_c, + int real_c) +{ + int samepage = 0, nextlink = curdoc.link; + int res; + BOOLEAN code = FALSE; + + if (nlinks > 1) { + + /* + * If in textarea, move to first link or textarea group before it if + * there is one on this screen. - kw + */ + if (LinkIsTextarea(curdoc.link)) { + int thisgroup = links[curdoc.link].l_form->number; + char *thisname = links[curdoc.link].l_form->name; + + if (curdoc.link > 0 && + !(LinkIsTextarea(0) && + links[0].l_form->number == thisgroup && + sametext(links[0].l_form->name, thisname))) { + do + nextlink--; + while + (LinkIsTextarea(nextlink) && + links[nextlink].l_form->number == thisgroup && + sametext(links[nextlink].l_form->name, thisname)); + samepage = 1; + + } else if (!more_text && LYGetNewline() == 1 && + (LinkIsTextarea(0) && + links[0].l_form->number == thisgroup && + sametext(links[0].l_form->name, thisname)) && + !(LinkIsTextarea(nlinks - 1) && + links[nlinks - 1].l_form->number == thisgroup && + sametext(links[nlinks - 1].l_form->name, thisname))) { + nextlink = nlinks - 1; + samepage = 1; + + } else if (!more_text && LYGetNewline() == 1 && curdoc.link > 0) { + nextlink = 0; + samepage = 1; + } + } else if (curdoc.link > 0) { + nextlink--; + samepage = 1; + } else if (!more_text && LYGetNewline() == 1) { + nextlink = nlinks - 1; + samepage = 1; + } + } + + if (samepage) { + /* + * If the link as determined so far is part of a group of textarea + * fields, try to use the first of them that's on the screen instead. + * - kw + */ + if (nextlink > 0 && + LinkIsTextarea(nextlink)) { + int thisgroup = links[nextlink].l_form->number; + char *thisname = links[nextlink].l_form->name; + + if (LinkIsTextarea(0) && + links[0].l_form->number == thisgroup && + sametext(links[0].l_form->name, thisname)) { + nextlink = 0; + } else + while + (nextlink > 1 && + LinkIsTextarea(nextlink - 1) && + links[nextlink - 1].l_form->number == thisgroup && + sametext(links[nextlink - 1].l_form->name, thisname)) { + nextlink--; + } + } + set_curdoc_link(nextlink); + + } else if (LYGetNewline() > 1 && /* need a previous page */ + (res = HTGetLinkOrFieldStart(curdoc.link, + &Newline, &newdoc.link, + -1, TRUE)) != NO) { + if (res == LINK_DO_ARROWUP) { + /* + * It says we should use the normal PREV_LINK mechanism, so we'll + * do that. - kw + */ + if (nlinks > 0) + curdoc.link = 0; + *cmd = LYK_PREV_LINK; + code = TRUE; + } else { + LYChgNewline(1); /* our line counting starts with 1 not 0 */ + } + } else if (*old_c != real_c) { + *old_c = real_c; + HTInfoMsg(NO_LINKS_ABOVE); + } + return code; +} + +static void handle_LYK_FASTFORW_LINK(int *old_c, + int real_c) +{ + int samepage = 0, nextlink = curdoc.link; + + if (nlinks > 1) { + + /* + * If in textarea, move to first link or field after it if there is one + * on this screen. - kw + */ + if (LinkIsTextarea(curdoc.link)) { + int thisgroup = links[curdoc.link].l_form->number; + char *thisname = links[curdoc.link].l_form->name; + + if (curdoc.link < nlinks - 1 && + !(LinkIsTextarea(nlinks - 1) && + links[nlinks - 1].l_form->number == thisgroup && + sametext(links[nlinks - 1].l_form->name, thisname))) { + do + nextlink++; + while + (LinkIsTextarea(nextlink) && + links[nextlink].l_form->number == thisgroup && + sametext(links[nextlink].l_form->name, thisname)); + samepage = 1; + } else if (!more_text && LYGetNewline() == 1 && curdoc.link > 0) { + nextlink = 0; + samepage = 1; + } + } else if (curdoc.link < nlinks - 1) { + nextlink++; + samepage = 1; + } else if (!more_text && LYGetNewline() == 1 && curdoc.link > 0) { + nextlink = 0; + samepage = 1; + } + } + + if (samepage) { + set_curdoc_link(nextlink); + } else if (!more_text && LYGetNewline() == 1 && curdoc.link == nlinks - 1) { + /* + * At the bottom of list and there is only one page. Move to the top + * link on the page. + */ + set_curdoc_link(0); + + } else if (more_text && /* need a later page */ + HTGetLinkOrFieldStart(curdoc.link, + &Newline, &newdoc.link, + 1, TRUE) != NO) { + LYChgNewline(1); /* our line counting starts with 1 not 0 */ + /* nothing more to do here */ + + } else if (*old_c != real_c) { + *old_c = real_c; + HTInfoMsg(NO_LINKS_BELOW); + } + return; +} + +static void handle_LYK_FIRST_LINK(void) +{ + int i = curdoc.link; + + for (;;) { + if (--i < 0 + || links[i].ly != links[curdoc.link].ly) { + set_curdoc_link(i + 1); + break; + } + } +} + +static BOOLEAN handle_LYK_GOTO(int *ch, + bstring **user_input, + char **old_user_input, + RecallType * recall, + int *URLTotal, + int *URLNum, + BOOLEAN *FirstURLRecall, + int *old_c, + int real_c) +{ + + if (no_goto && !LYValidate) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(GOTO_DISALLOWED); + } + return FALSE; + } + + StrAllocCopy(*old_user_input, (*user_input)->str); + if (!goto_buffer) + BStrCopy0((*user_input), ""); + + *URLTotal = (Goto_URLs ? HTList_count(Goto_URLs) : 0); + if (goto_buffer && !isBEmpty(*user_input)) { + *recall = ((*URLTotal > 1) ? RECALL_URL : NORECALL); + *URLNum = 0; + *FirstURLRecall = FALSE; + } else { + *recall = ((*URLTotal >= 1) ? RECALL_URL : NORECALL); + *URLNum = *URLTotal; + *FirstURLRecall = TRUE; + } + + /* + * Ask the user. + */ + _statusline(URL_TO_OPEN); + if ((*ch = LYgetBString(user_input, FALSE, 0, *recall)) < 0) { + /* + * User cancelled the Goto via ^G. Restore user_input and + * break. - FM + */ + BStrCopy0((*user_input), *old_user_input); + FREE(*old_user_input); + HTInfoMsg(CANCELLED); + return FALSE; + } + return TRUE; +} + +static void handle_LYK_GROW_TEXTAREA(BOOLEAN *refresh_screen) +{ + /* + * See if the current link is in a form TEXTAREA. + */ + if (LinkIsTextarea(curdoc.link)) { + + HText_ExpandTextarea(&links[curdoc.link], TEXTAREA_EXPAND_SIZE); + + *refresh_screen = TRUE; + + } else { + + HTInfoMsg(NOT_IN_TEXTAREA); + } +} + +static BOOLEAN handle_LYK_HEAD(int *cmd) +{ + int c; + + if (nlinks > 0 && + (links[curdoc.link].type != WWW_FORM_LINK_TYPE || + links[curdoc.link].l_form->type == F_SUBMIT_TYPE || + links[curdoc.link].l_form->type == F_IMAGE_SUBMIT_TYPE || + links[curdoc.link].l_form->type == F_TEXT_SUBMIT_TYPE)) { + /* + * We have links, and the current link is a normal link or a form's + * submit button. - FM + */ + _statusline(HEAD_D_L_OR_CANCEL); + c = LYgetch_single(); + if (c == 'D') { + char *scheme = !isLYNXIMGMAP(curdoc.address) + ? curdoc.address + : curdoc.address + LEN_LYNXIMGMAP; + + if (LYCanDoHEAD(scheme) != TRUE) { + HTUserMsg(DOC_NOT_HTTP_URL); + } else { + /* + * Check if this is a reply from a POST, and if so, seek + * confirmation if the safe element is not set. - FM + */ + if ((curdoc.post_data != NULL && + curdoc.safe != TRUE) && + HTConfirm(CONFIRM_POST_DOC_HEAD) == FALSE) { + HTInfoMsg(CANCELLED); + } else { + HEAD_request = TRUE; + LYforce_no_cache = TRUE; + StrAllocCopy(newdoc.title, curdoc.title); + if (HTLoadedDocumentIsHEAD()) { + HText_setNoCache(HTMainText); + free_address(&curdoc); + } else { + StrAllocCat(newdoc.title, " - HEAD"); + } + } + } + } else if (c == 'L') { + if (links[curdoc.link].type != WWW_FORM_LINK_TYPE && + StrNCmp(links[curdoc.link].lname, "http", 4) && + StrNCmp(links[curdoc.link].lname, "LYNXIMGMAP:http", 15) && + LYCanDoHEAD(links[curdoc.link].lname) != TRUE && + (links[curdoc.link].type != WWW_INTERN_LINK_TYPE || + !curdoc.address || + StrNCmp(curdoc.address, "http", 4))) { + HTUserMsg(LINK_NOT_HTTP_URL); + } else if (links[curdoc.link].type == WWW_FORM_LINK_TYPE && + FormIsReadonly(links[curdoc.link].l_form)) { + HTUserMsg(FORM_ACTION_DISABLED); + } else if (links[curdoc.link].type == WWW_FORM_LINK_TYPE && + links[curdoc.link].l_form->submit_action != 0 && + !isLYNXCGI(links[curdoc.link].l_form->submit_action) && + StrNCmp(links[curdoc.link].l_form->submit_action, + "http", 4)) { + HTUserMsg(FORM_ACTION_NOT_HTTP_URL); + } else if (links[curdoc.link].type == WWW_FORM_LINK_TYPE && + links[curdoc.link].l_form->submit_method == + URL_POST_METHOD && + HTConfirm(CONFIRM_POST_LINK_HEAD) == FALSE) { + HTInfoMsg(CANCELLED); + } else { + HEAD_request = TRUE; + LYforce_no_cache = TRUE; + *cmd = LYK_ACTIVATE; + return TRUE; + } + } + } else { + /* + * We can offer only this document for a HEAD request. Check if this + * is a reply from a POST, and if so, seek confirmation if the safe + * element is not set. - FM + */ + if ((curdoc.post_data != NULL && + curdoc.safe != TRUE) && + HTConfirm(CONFIRM_POST_DOC_HEAD) == FALSE) { + HTInfoMsg(CANCELLED); + } else { + if (nlinks > 0) { + /* + * The current link is a non-submittable form link, so prompt + * the user to make it clear that the HEAD request would be for + * the current document, not the form link. - FM + */ + _statusline(HEAD_D_OR_CANCEL); + c = LYgetch_single(); + } else { + /* + * No links, so we can just assume that the user wants a HEAD + * request for the current document. - FM + */ + c = 'D'; + } + if (c == 'D') { + char *scheme = !isLYNXIMGMAP(curdoc.address) + ? curdoc.address + : curdoc.address + LEN_LYNXIMGMAP; + + /* + * The user didn't cancel, so check if a HEAD request is + * appropriate for the current document. - FM + */ + if (LYCanDoHEAD(scheme) != TRUE) { + HTUserMsg(DOC_NOT_HTTP_URL); + } else { + HEAD_request = TRUE; + LYforce_no_cache = TRUE; + StrAllocCopy(newdoc.title, curdoc.title); + if (HTLoadedDocumentIsHEAD()) { + HText_setNoCache(HTMainText); + free_address(&curdoc); + } else { + StrAllocCat(newdoc.title, " - HEAD"); + } + } + } + } + } + return FALSE; +} + +static void handle_LYK_HELP(const char **cshelpfile) +{ + char *my_value = NULL; + + if (*cshelpfile == NULL) + *cshelpfile = helpfile; + StrAllocCopy(my_value, *cshelpfile); + LYEnsureAbsoluteURL(&my_value, *cshelpfile, FALSE); + if (!STREQ(curdoc.address, my_value)) { + /* + * Set the filename. + */ + set_address(&newdoc, my_value); + /* + * Make a name for this help file. + */ + StrAllocCopy(newdoc.title, gettext("Help Screen")); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + } + FREE(my_value); + *cshelpfile = NULL; /* reset pointer - kw */ +} + +static void handle_LYK_HISTORICAL(void) +{ +#ifdef USE_SOURCE_CACHE + if (!HTcan_reparse_document()) { +#endif + /* + * Check if this is a reply from a POST, and if so, seek confirmation + * of reload if the safe element is not set. - FM + */ + if ((curdoc.post_data != NULL && + curdoc.safe != TRUE) && + confirm_post_resub(curdoc.address, NULL, 0, 0) == FALSE) { + HTInfoMsg(WILL_NOT_RELOAD_DOC); + } else { + HText_setNoCache(HTMainText); + move_address(&newdoc, &curdoc); + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + } +#ifdef USE_SOURCE_CACHE + } /* end if no bypass */ +#endif + historical_comments = (BOOLEAN) !historical_comments; + if (minimal_comments) { + HTAlert(historical_comments ? + HISTORICAL_ON_MINIMAL_OFF : HISTORICAL_OFF_MINIMAL_ON); + } else { + HTAlert(historical_comments ? + HISTORICAL_ON_VALID_OFF : HISTORICAL_OFF_VALID_ON); + } +#ifdef USE_SOURCE_CACHE + (void) reparse_document(); +#endif + return; +} + +static BOOLEAN handle_LYK_HISTORY(int ForcePush) +{ + if (curdoc.title && !LYIsUIPage(curdoc.address, UIP_HISTORY)) { + /* + * Don't do this if already viewing history page. + * + * Push the current file so that the history list contains the current + * file for printing purposes. Pop the file afterwards to prevent + * multiple copies. + */ + if (TRACE && !LYUseTraceLog && LYCursesON) { + LYHideCursor(); /* make sure cursor is down */ +#ifdef USE_SLANG + LYaddstr("\n"); +#endif /* USE_SLANG */ + LYrefresh(); + } + LYpush(&curdoc, ForcePush); + + /* + * Print history options to file. + */ + if (showhistory(&newdoc.address) < 0) { + LYpop(&curdoc); + return TRUE; + } + LYRegisterUIPage(newdoc.address, UIP_HISTORY); + StrAllocCopy(newdoc.title, HISTORY_PAGE_TITLE); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + newdoc.link = 1; /*@@@ bypass "recent statusline messages" link */ + free_address(&curdoc); /* so it doesn't get pushed */ + + if (LYValidate || check_realm) { + LYPermitURL = TRUE; + } + return TRUE; + } /* end if StrNCmp */ + return FALSE; +} + +static BOOLEAN handle_LYK_IMAGE_TOGGLE(int *cmd) +{ + clickable_images = (BOOLEAN) !clickable_images; + + HTUserMsg(clickable_images ? + CLICKABLE_IMAGES_ON : CLICKABLE_IMAGES_OFF); + return reparse_or_reload(cmd); +} + +static void handle_LYK_INDEX(int *old_c, + int real_c) +{ + /* + * Make sure we are not in the index already. + */ + if (!STREQ(curdoc.address, indexfile)) { + + if (indexfile[0] == '\0') { /* no defined index */ + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_INDEX_FILE); + } + + } else { +#ifdef KANJI_CODE_OVERRIDE + if (HTCJK == JAPANESE) { + last_kcode = NOKANJI; /* AUTO */ + } +#endif +#ifdef USE_PROGRAM_DIR + if (is_url(indexfile) == 0) { + char *tmp = NULL; + + HTSprintf0(&tmp, "%s\\%s", program_dir, indexfile); + FREE(indexfile); + LYLocalFileToURL(&indexfile, tmp); + FREE(tmp); + } +#endif + set_address(&newdoc, indexfile); + StrAllocCopy(newdoc.title, gettext("System Index")); /* name it */ + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + } /* end else */ + } /* end if */ +} + +static void handle_LYK_INDEX_SEARCH(BOOLEAN *force_load, + int ForcePush, + int *old_c, + int real_c) +{ + if (is_www_index) { + /* + * Perform a database search. + * + * do_www_search will try to go out and get the document. If it + * returns TRUE, a new document was returned and is named in the + * newdoc.address. + */ + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + if (do_www_search(&newdoc) == NORMAL) { + /* + * Yah, the search succeeded. + */ + if (TRACE && !LYUseTraceLog && LYCursesON) { + /* + * Make sure cursor is down. + */ + LYHideCursor(); +#ifdef USE_SLANG + LYaddstr("\n"); +#endif /* USE_SLANG */ + LYrefresh(); + } + LYpush(&curdoc, ForcePush); + /* + * Make the curdoc.address the newdoc.address so that getfile + * doesn't try to get the newdoc.address. Since we have already + * gotten it. + */ + copy_address(&curdoc, &newdoc); + BStrCopy(newdoc.post_data, curdoc.post_data); + StrAllocCopy(newdoc.post_content_type, curdoc.post_content_type); + newdoc.internal_link = FALSE; + curdoc.line = -1; + LYSetNewline(0); + } else if (use_this_url_instead != NULL) { + /* + * Got back a redirecting URL. Check it out. + */ + HTUserMsg2(WWW_USING_MESSAGE, use_this_url_instead); + + /* + * Make a name for this URL. + */ + StrAllocCopy(newdoc.title, + "A URL specified by redirection"); + set_address(&newdoc, use_this_url_instead); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + FREE(use_this_url_instead); + *force_load = TRUE; + } else { + /* + * Yuk, the search failed. Restore the old file. + */ + copy_address(&newdoc, &curdoc); + BStrCopy(newdoc.post_data, curdoc.post_data); + StrAllocCopy(newdoc.post_content_type, + curdoc.post_content_type); + StrAllocCopy(newdoc.bookmark, curdoc.bookmark); + newdoc.isHEAD = curdoc.isHEAD; + newdoc.safe = curdoc.safe; + newdoc.internal_link = curdoc.internal_link; + } + } else if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NOT_ISINDEX); + } +} + +static BOOLEAN handle_LYK_INFO(int *cmd) +{ + /* + * Don't do if already viewing info page. + */ + if (!LYIsUIPage(curdoc.address, UIP_SHOWINFO)) { + if (do_change_link() != -1 + && LYShowInfo(&curdoc, &newdoc, owner_address) >= 0) { + LYRegisterUIPage(newdoc.address, UIP_SHOWINFO); + StrAllocCopy(newdoc.title, SHOWINFO_TITLE); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + LYforce_no_cache = TRUE; + if (LYValidate || check_realm) + LYPermitURL = TRUE; + } + } else { + /* + * If already in info page, get out. + */ + *cmd = LYK_PREV_DOC; + return TRUE; + } + return FALSE; +} + +static BOOLEAN handle_LYK_INLINE_TOGGLE(int *cmd) +{ + pseudo_inline_alts = (BOOLEAN) !pseudo_inline_alts; + + HTUserMsg(pseudo_inline_alts ? + PSEUDO_INLINE_ALTS_ON : PSEUDO_INLINE_ALTS_OFF); + return reparse_or_reload(cmd); +} + +static void handle_LYK_INSERT_FILE(BOOLEAN *refresh_screen, + int *old_c, + int real_c) +{ + /* + * See if the current link is in a form TEXTAREA. + */ + if (LinkIsTextarea(curdoc.link)) { + + /* + * Reject attempts to use this for gaining access to local files when + * such access is restricted: if no_file_url was set via the file_url + * restriction, if no_goto_file was set for the anonymous account, or + * if HTDirAccess was set to HT_DIR_FORBID or HT_DIR_SELECTIVE via the + * -nobrowse or -selective switches, it is assumed that inserting files + * or checking for existence of files needs to be denied. - kw + */ + if (no_file_url || no_goto_file || + HTDirAccess == HT_DIR_FORBID || + HTDirAccess == HT_DIR_SELECTIVE) { + if (*old_c != real_c) { + *old_c = real_c; + if (no_goto_file) + HTUserMsg2(GOTO_XXXX_DISALLOWED, STR_FILE_URL); + else + HTUserMsg(NOAUTH_TO_ACCESS_FILES); + HTInfoMsg(FILE_INSERT_CANCELLED); + } + return; + } + + (void) HText_InsertFile(&links[curdoc.link]); + + /* + * TODO: + * Move cursor "n" lines from the current line to position it on the + * 1st line following the text that was inserted. If the target + * line/anchor requires us to scroll up/down, position the target in + * the approximate center of the screen. + * + * [Current behavior leaves cursor on the same line relative to the + * start of the TEXTAREA that it was on before the insertion. This is + * the same behavior that occurs with (my) editor, so this TODO will + * stay unimplemented.] + */ + + *refresh_screen = TRUE; + + } else { + + HTInfoMsg(NOT_IN_TEXTAREA); + } +} + +#if defined(DIRED_SUPPORT) && defined(OK_INSTALL) +static void handle_LYK_INSTALL(void) +{ + if (lynx_edit_mode && nlinks > 0 && !no_dired_support) + local_install(NULL, links[curdoc.link].lname, &newdoc.address); +} +#endif + +static const char *hexy = "0123456789ABCDEF"; + +#define HEX(n) hexy[(n) & 0xf] +/* + * URL-encode a parameter which can then be appended to a URI. + * RFC-3986 lists reserved characters, which should be encoded. + */ +static char *urlencode(char *str) +{ + char *result = NULL; + char *ptr; + int ch; + + if (str != NULL) { + result = malloc(strlen(str) * 3 + 1); + ptr = result; + + if (result == NULL) + outofmem(__FILE__, "urlencode"); + + while ((ch = UCH(*str++)) != 0) { + if (ch == ' ') { + *ptr = '+'; + ptr++; + } else if (ch > 127 || + StrChr(":/?#[]@!$&'()*+,;=", ch) != 0) { + *ptr++ = '%'; + *ptr++ = HEX(ch >> 4); + *ptr++ = HEX(ch); + } else { + *ptr++ = (char) ch; + } + } + *ptr = '\0'; + } + + return result; +} + +/* + * Fill in "%s" marker(s) in the url_template by prompting the user for the + * values. + */ +static BOOLEAN check_JUMP_param(char **url_template) +{ + int param = 1; + char *subs; + char *result = *url_template; + char *encoded = NULL; + int code = TRUE; + bstring *input = NULL; + + CTRACE((tfp, "check_JUMP_param: %s\n", NONNULL(result))); + + while (result != NULL && (subs = strstr(result, "%s")) != 0) { + char prompt[MAX_LINE]; + RecallType recall = NORECALL; + + CTRACE((tfp, "Prompt for query param%d: %s\n", param, result)); + + sprintf(prompt, gettext("Query parameter %d: "), param++); + statusline(prompt); + BStrCopy0(input, ""); + + if (encoded) + FREE(encoded); + + if (LYgetBString(&input, FALSE, 0, recall) < 0) { + /* + * cancelled via ^G + */ + HTInfoMsg(CANCELLED); + code = FALSE; + break; + } else if ((encoded = urlencode(input->str)) != NULL && *encoded != '\0') { + int subs_at = (int) (subs - result); + int fill_in = (int) strlen(encoded) - 2; + size_t have = strlen(result); + size_t want = strlen(encoded) + have - 1; + int n; + char *update = realloc(result, want + 1); + + if (update == 0) { + HTInfoMsg(NOT_ENOUGH_MEMORY); + code = FALSE; + break; + } + + CTRACE((tfp, " reply: %s\n", input->str)); + CTRACE((tfp, " coded: %s\n", encoded)); + + result = update; + result[want] = '\0'; + for (n = (int) want; (n - fill_in) >= subs_at; --n) { + result[n] = result[n - fill_in]; + } + for (n = subs_at; encoded[n - subs_at] != '\0'; ++n) { + result[n] = encoded[n - subs_at]; + } + CTRACE((tfp, " subst: %s\n", result)); + } else { + HTInfoMsg(CANCELLED); + code = FALSE; + break; + } + } + BStrFree(input); + FREE(encoded); + *url_template = result; + return (BOOLEAN) code; +} + +static void fill_JUMP_Params(char **addressp) +{ + if (LYJumpFileURL) { + check_JUMP_param(addressp); + } +} + +static BOOLEAN handle_LYK_JUMP(int c, + bstring **user_input, + char **old_user_input GCC_UNUSED, + RecallType * recall GCC_UNUSED, + BOOLEAN *FirstURLRecall GCC_UNUSED, + int *URLNum GCC_UNUSED, + int *URLTotal GCC_UNUSED, + int *ch GCC_UNUSED, + int *old_c, + int real_c) +{ + char *ret; + + if (no_jump || JThead == NULL) { + if (*old_c != real_c) { + *old_c = real_c; + if (no_jump) + HTUserMsg(JUMP_DISALLOWED); + else + HTUserMsg(NO_JUMPFILE); + } + } else { + LYJumpFileURL = TRUE; + if ((ret = LYJump(c)) != NULL) { +#ifdef PERMIT_GOTO_FROM_JUMP + if (!strncasecomp(ret, "Go ", 3)) { + LYJumpFileURL = FALSE; + StrAllocCopy(*old_user_input, (*user_input)->str); + *URLTotal = (Goto_URLs ? HTList_count(Goto_URLs) : 0); + *recall = ((*URLTotal >= 1) ? RECALL_URL : NORECALL); + *URLNum = *URLTotal; + *FirstURLRecall = TRUE; + if (!strcasecomp(ret, "Go :")) { + if (recall) { + *ch = UPARROW_KEY; + return TRUE; + } + FREE(*old_user_input); + HTUserMsg(NO_RANDOM_URLS_YET); + return FALSE; + } + ret = HTParse((ret + 3), startfile, PARSE_ALL); + BStrCopy0((*user_input), ret); + FREE(ret); + return TRUE; + } +#endif /* PERMIT_GOTO_FROM_JUMP */ + ret = HTParse(ret, startfile, PARSE_ALL); + if (!LYTrimStartfile(ret)) { + LYRemoveBlanks((*user_input)->str); + } + if (check_JUMP_param(&ret)) { + set_address(&newdoc, ret); + StrAllocCopy(lynxjumpfile, ret); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + LYUserSpecifiedURL = TRUE; + } + FREE(ret); + } else { + LYJumpFileURL = FALSE; + } + } + return FALSE; +} + +static void handle_LYK_KEYMAP(BOOLEAN *vi_keys_flag, + BOOLEAN *emacs_keys_flag, + int *old_c, + int real_c) +{ + if (*old_c != real_c) { + *old_c = real_c; + set_address(&newdoc, STR_LYNXKEYMAP); + StrAllocCopy(newdoc.title, CURRENT_KEYMAP_TITLE); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + /* + * If vi_keys changed, the keymap did too, so force no cache, and reset + * the flag. - FM + */ + if (*vi_keys_flag != vi_keys || + *emacs_keys_flag != emacs_keys) { + LYforce_no_cache = TRUE; + *vi_keys_flag = vi_keys; + *emacs_keys_flag = emacs_keys; + } +#if defined(DIRED_SUPPORT) && defined(OK_OVERRIDE) + /* + * Remember whether we are in dired menu so we can display the right + * keymap. + */ + if (!no_dired_support) { + prev_lynx_edit_mode = lynx_edit_mode; + } +#endif /* DIRED_SUPPORT && OK_OVERRIDE */ + LYforce_no_cache = TRUE; + } +} + +static void handle_LYK_LAST_LINK(void) +{ + int i = curdoc.link; + + for (;;) { + if (++i >= nlinks + || links[i].ly != links[curdoc.link].ly) { + set_curdoc_link(i - 1); + break; + } + } +} + +static void handle_LYK_LEFT_LINK(void) +{ + if (curdoc.link > 0 && + links[curdoc.link].ly == links[curdoc.link - 1].ly) { + set_curdoc_link(curdoc.link - 1); + } +} + +static BOOLEAN handle_LYK_LIST(int *cmd) +{ + /* + * Don't do if already viewing list page. + */ + if (!strcmp(NonNull(curdoc.title), LIST_PAGE_TITLE) && + LYIsUIPage(curdoc.address, UIP_LIST_PAGE)) { + /* + * Already viewing list page, so get out. + */ + *cmd = LYK_PREV_DOC; + return TRUE; + } + + /* + * Print list page to file. + */ + if (showlist(&newdoc, TRUE) < 0) + return FALSE; + StrAllocCopy(newdoc.title, LIST_PAGE_TITLE); + /* + * showlist will set newdoc's other fields. It may leave post_data intact + * so the list can be used to follow internal links in the current document + * even if it is a POST response. - kw + */ + + if (LYValidate || check_realm) { + LYPermitURL = TRUE; + StrAllocCopy(lynxlistfile, newdoc.address); + } + return FALSE; +} + +static void handle_LYK_MAIN_MENU(int *old_c, + int real_c) +{ + /* + * If its already the homepage then don't reload it. + */ + if (!STREQ(curdoc.address, homepage)) { + + if (HTConfirmDefault(CONFIRM_MAIN_SCREEN, NO) == YES) { + set_address(&newdoc, homepage); + StrAllocCopy(newdoc.title, gettext("Entry into main screen")); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + LYhighlight(FALSE, curdoc.link, prev_target->str); +#ifdef DIRED_SUPPORT + if (lynx_edit_mode) { + DIRED_UNCACHE_2; + } +#endif /* DIRED_SUPPORT */ + } + } else { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(IN_MAIN_SCREEN); + } + } +} + +static void handle_LYK_MINIMAL(void) +{ + if (!historical_comments) { +#ifdef USE_SOURCE_CACHE + if (!HTcan_reparse_document()) { +#endif + /* + * Check if this is a reply from a POST, and if so, seek + * confirmation of reload if the safe element is not set. - FM + */ + if ((curdoc.post_data != NULL && + curdoc.safe != TRUE) && + confirm_post_resub(curdoc.address, NULL, 0, 0) == FALSE) { + HTInfoMsg(WILL_NOT_RELOAD_DOC); + } else { + HText_setNoCache(HTMainText); + move_address(&newdoc, &curdoc); + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + } +#ifdef USE_SOURCE_CACHE + } /* end if no bypass */ +#endif + } + minimal_comments = (BOOLEAN) !minimal_comments; + if (!historical_comments) { + HTAlert(minimal_comments ? + MINIMAL_ON_IN_EFFECT : MINIMAL_OFF_VALID_ON); + } else { + HTAlert(minimal_comments ? + MINIMAL_ON_BUT_HISTORICAL : MINIMAL_OFF_HISTORICAL_ON); + } +#ifdef USE_SOURCE_CACHE + (void) reparse_document(); +#endif + return; +} + +#if defined(DIRED_SUPPORT) +static void handle_LYK_MODIFY(BOOLEAN *refresh_screen) +{ + if (lynx_edit_mode && nlinks > 0 && !no_dired_support) { + int ret; + + ret = local_modify(&curdoc, &newdoc.address); + if (ret == PERMIT_FORM_RESULT) { /* Permit form thrown up */ + *refresh_screen = TRUE; + } else if (ret) { + DIRED_UNCACHE_1; + move_address(&newdoc, &curdoc); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + LYclear(); + } + } +} +#endif /* DIRED_SUPPORT */ + +#ifdef EXP_NESTED_TABLES +static BOOLEAN handle_LYK_NESTED_TABLES(int *cmd) +{ + nested_tables = (BOOLEAN) !nested_tables; + HTUserMsg(nested_tables ? NESTED_TABLES_ON : NESTED_TABLES_OFF); + return reparse_or_reload(cmd); +} +#endif + +static BOOLEAN handle_LYK_OPTIONS(int *cmd, + BOOLEAN *refresh_screen) +{ +#ifndef NO_OPTION_MENU + if (!LYUseFormsOptions) { + BOOLEAN LYUseDefaultRawMode_flag = LYUseDefaultRawMode; + BOOLEAN LYSelectPopups_flag = LYSelectPopups; + BOOLEAN verbose_img_flag = verbose_img; + BOOLEAN keypad_mode_flag = (BOOL) keypad_mode; + BOOLEAN show_dotfiles_flag = show_dotfiles; + BOOLEAN user_mode_flag = (BOOL) user_mode; + int CurrentAssumeCharSet_flag = UCLYhndl_for_unspec; + int CurrentCharSet_flag = current_char_set; + int HTfileSortMethod_flag = HTfileSortMethod; + char *CurrentUserAgent = NULL; + char *CurrentNegoLanguage = NULL; + char *CurrentNegoCharset = NULL; + + StrAllocCopy(CurrentUserAgent, NonNull(LYUserAgent)); + StrAllocCopy(CurrentNegoLanguage, NonNull(language)); + StrAllocCopy(CurrentNegoCharset, NonNull(pref_charset)); + + LYoptions(); /** do the old-style options stuff **/ + + if (keypad_mode_flag != keypad_mode || + (user_mode_flag != user_mode && + (user_mode_flag == NOVICE_MODE || + user_mode == NOVICE_MODE)) || + (((HTfileSortMethod_flag != HTfileSortMethod) || + (show_dotfiles_flag != show_dotfiles)) && + (isFILE_URL(curdoc.address) || + isFTP_URL(curdoc.address))) || + CurrentCharSet_flag != current_char_set || + CurrentAssumeCharSet_flag != UCLYhndl_for_unspec || + verbose_img_flag != verbose_img || + LYUseDefaultRawMode_flag != LYUseDefaultRawMode || + LYSelectPopups_flag != LYSelectPopups || + ((strcmp(CurrentUserAgent, NonNull(LYUserAgent)) || + strcmp(CurrentNegoLanguage, NonNull(language)) || + strcmp(CurrentNegoCharset, NonNull(pref_charset))) && + (!StrNCmp(curdoc.address, "http", 4) || + isLYNXCGI(curdoc.address)))) { + + BOOLEAN canreparse_post = FALSE; + + /* + * Check if this is a reply from a POST, and if so, seek + * confirmation of reload if the safe element is not set. - FM + */ + if ((curdoc.post_data != NULL && + curdoc.safe != TRUE) && +#ifdef USE_SOURCE_CACHE + (!(canreparse_post = HTcan_reparse_document())) && +#endif + confirm_post_resub(curdoc.address, curdoc.title, + 2, 1) == FALSE) { + HTInfoMsg(WILL_NOT_RELOAD_DOC); + } else { + copy_address(&newdoc, &curdoc); + if (((strcmp(CurrentUserAgent, NonNull(LYUserAgent)) || + strcmp(CurrentNegoLanguage, NonNull(language)) || + strcmp(CurrentNegoCharset, NonNull(pref_charset))) && + (StrNCmp(curdoc.address, "http", 4) == 0 || + isLYNXCGI(curdoc.address)))) { + /* + * An option has changed which may influence content + * negotiation, and the resource is from a http or https or + * lynxcgi URL (the only protocols which currently do + * anything with this information). Set reloading = TRUE + * so that proxy caches will be flushed, which is necessary + * until the time when all proxies understand HTTP 1.1 + * Vary: and all Servers properly use it... Treat like + * case LYK_RELOAD (see comments there). - KW + */ + reloading = TRUE; + } + if (HTisDocumentSource()) { + srcmode_for_next_retrieval(1); + } +#ifdef USE_SOURCE_CACHE + if (reloading == FALSE) { + /* one more attempt to be smart enough: */ + if (reparse_document()) { + FREE(CurrentUserAgent); + FREE(CurrentNegoLanguage); + FREE(CurrentNegoCharset); + return FALSE; + } + } +#endif + if (canreparse_post && + confirm_post_resub(curdoc.address, curdoc.title, + 2, 1) == FALSE) { + if (HTisDocumentSource()) { + srcmode_for_next_retrieval(0); + } + FREE(CurrentUserAgent); + FREE(CurrentNegoLanguage); + FREE(CurrentNegoCharset); + return FALSE; + } + + HEAD_request = HTLoadedDocumentIsHEAD(); + HText_setNoCache(HTMainText); + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + LYforce_no_cache = TRUE; + free_address(&curdoc); /* So it doesn't get pushed. */ + } + } + FREE(CurrentUserAgent); + FREE(CurrentNegoLanguage); + FREE(CurrentNegoCharset); + *refresh_screen = TRUE; /* to repaint screen */ + return FALSE; + } /* end if !LYUseFormsOptions */ +#else + (void) refresh_screen; +#endif /* !NO_OPTION_MENU */ +#ifndef NO_OPTION_FORMS + /* + * Generally stolen from LYK_COOKIE_JAR. Options menu handling is + * done in postoptions(), called from getfile() currently. + * + * postoptions() is also responsible for reloading the document + * before the 'options menu' but only when (a few) important + * options were changed. + * + * It is critical that post_data is freed here since the + * submission of changed options is done via the same protocol as + * LYNXOPTIONS: + */ + /* + * Don't do if already viewing options page. + */ + if (!LYIsUIPage(curdoc.address, UIP_OPTIONS_MENU)) { + + set_address(&newdoc, LYNXOPTIONS_PAGE("/")); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + LYforce_no_cache = TRUE; + /* change to 'if (check_realm && !LYValidate)' and + make change near top of getfile to forbid + using forms options menu with -validate: - kw */ + if (LYValidate || check_realm) { + LYPermitURL = TRUE; + } + } else { + /* + * If already in the options menu, get out. + */ + *cmd = LYK_PREV_DOC; + return TRUE; + } +#else + (void) cmd; +#endif /* !NO_OPTION_FORMS */ + return FALSE; +} + +static void handle_NEXT_DOC(void) +{ + if (LYhist_next(&curdoc, &newdoc)) { + free_address(&curdoc); /* avoid push */ + return; + } + HTUserMsg(gettext("No next document present")); +} + +static void handle_LYK_NEXT_LINK(int c, + int *old_c, + int real_c) +{ + if (curdoc.link < nlinks - 1) { /* next link */ + LYhighlight(FALSE, curdoc.link, prev_target->str); +#ifdef FASTTAB + /* + * Move to different textarea if TAB in textarea. + */ + if (LinkIsTextarea(curdoc.link) && + c == '\t') { + int thisgroup = links[curdoc.link].l_form->number; + char *thisname = links[curdoc.link].l_form->name; + + do + curdoc.link++; + while ((curdoc.link < nlinks - 1) && + LinkIsTextarea(curdoc.link) && + links[curdoc.link].l_form->number == thisgroup && + sametext(links[curdoc.link].l_form->name, thisname)); + } else { + curdoc.link++; + } +#else + curdoc.link++; +#endif /* FASTTAB */ + /* + * At the bottom of list and there is only one page. Move to the top + * link on the page. + */ + } else if (!more_text && LYGetNewline() == 1 && curdoc.link == nlinks - 1) { + set_curdoc_link(0); + + } else if (more_text) { /* next page */ + LYChgNewline(display_lines); + } else if (*old_c != real_c) { + HandleForwardWraparound(); + } +} + +static void handle_LYK_NEXT_PAGE(int *old_c, + int real_c) +{ + if (more_text) { + LYChgNewline(display_lines); + } else if (curdoc.link < nlinks - 1) { + set_curdoc_link(nlinks - 1); + } else if (*old_c != real_c) { + *old_c = real_c; + HTInfoMsg(ALREADY_AT_END); + } +} + +static BOOLEAN handle_LYK_NOCACHE(int *old_c, + int real_c) +{ + if (nlinks > 0) { + if (links[curdoc.link].type == WWW_FORM_LINK_TYPE && + links[curdoc.link].l_form->type != F_SUBMIT_TYPE && + links[curdoc.link].l_form->type != F_IMAGE_SUBMIT_TYPE && + links[curdoc.link].l_form->type != F_TEXT_SUBMIT_TYPE) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NOT_ON_SUBMIT_OR_LINK); + } + return FALSE; + } else { + LYforce_no_cache = TRUE; + reloading = TRUE; + } + } + return TRUE; +} + +static void handle_LYK_PREV_LINK(int *arrowup, + int *old_c, + int real_c) +{ + if (curdoc.link > 0) { /* previous link */ + set_curdoc_link(curdoc.link - 1); + + } else if (!more_text && + curdoc.link == 0 && LYGetNewline() == 1) { /* at the top of list */ + /* + * If there is only one page of data and the user goes off the top, + * just move the cursor to last link on the page. + */ + set_curdoc_link(nlinks - 1); + + } else if (curdoc.line > 1) { /* previous page */ + /* + * Go back to the previous page. + */ + int scrollamount = (LYGetNewline() > display_lines + ? display_lines + : LYGetNewline() - 1); + + LYChgNewline(-scrollamount); + if (scrollamount < display_lines && + nlinks > 0 && curdoc.link == 0 && + links[0].ly - 1 + scrollamount <= display_lines) { + newdoc.link = HText_LinksInLines(HTMainText, + 1, + scrollamount) - 1; + } else { + *arrowup = TRUE; + } + + } else if (*old_c != real_c) { + HandleReverseWraparound(); + } +} + +#define nhist_1 (nhist - 1) /* workaround for indent */ + +static int handle_PREV_DOC(int *cmd, + int *old_c, + int real_c) +{ + if (nhist > 0) { /* if there is anything to go back to */ + /* + * Check if the previous document is a reply from a POST, and if so, + * seek confirmation of resubmission if the safe element is not set and + * the document is not still in the cache or LYresubmit_posts is set. + * If not confirmed and it is not the startfile, pop it so we go to the + * yet previous document, until we're OK or reach the startfile. If we + * reach the startfile and its not OK or we don't get confirmation, + * cancel. - FM + */ + DocAddress WWWDoc; + HTParentAnchor *tmpanchor; + BOOLEAN conf = FALSE, first = TRUE; + + HTLastConfirmCancelled(); /* reset flag */ + while (nhist > 0) { + conf = FALSE; + if (HDOC(nhist_1).post_data == NULL) { + break; + } + WWWDoc.address = HDOC(nhist_1).address; + WWWDoc.post_data = HDOC(nhist_1).post_data; + WWWDoc.post_content_type = + HDOC(nhist_1).post_content_type; + WWWDoc.bookmark = HDOC(nhist_1).bookmark; + WWWDoc.isHEAD = HDOC(nhist_1).isHEAD; + WWWDoc.safe = HDOC(nhist_1).safe; + tmpanchor = HTAnchor_findAddress(&WWWDoc); + if (HTAnchor_safe(tmpanchor)) { + break; + } + if ((HTAnchor_document(tmpanchor) == NULL && + (isLYNXIMGMAP(WWWDoc.address) || + (conf = confirm_post_resub(WWWDoc.address, + HDOC(nhist_1).title, + 0, 0)) + == FALSE)) || + ((LYresubmit_posts && !conf && + (NONINTERNAL_OR_PHYS_DIFFERENT((DocInfo *) &history[(nhist_1)], + &curdoc) || + NONINTERNAL_OR_PHYS_DIFFERENT((DocInfo *) &history[(nhist_1)], + &newdoc))) && + !confirm_post_resub(WWWDoc.address, + HDOC(nhist_1).title, + 2, 2))) { + if (HTLastConfirmCancelled()) { + if (!first && curdoc.internal_link) + free_address(&curdoc); + *cmd = LYK_DO_NOTHING; + return 2; + } + if (nhist == 1) { + HTInfoMsg(CANCELLED); + *old_c = 0; + *cmd = LYK_DO_NOTHING; + return 2; + } else { + HTUserMsg2(WWW_SKIP_MESSAGE, WWWDoc.address); + do { /* Should be LYhist_prev when _next supports */ + LYpop(&curdoc); /* skipping of forms */ + } while (nhist > 1 + && !are_different((DocInfo *) &history[nhist_1], + &curdoc)); + first = FALSE; /* have popped at least one */ + continue; + } + } else { + /* + * Break from loop; if user just confirmed to load again + * because document wasn't in cache, set LYforce_no_cache to + * avoid unnecessary repeat question down the road. - kw + */ + if (conf) + LYforce_no_cache = TRUE; + break; + } + } + + if (!first) + curdoc.internal_link = FALSE; + + /* + * Set newdoc.address to empty to pop a file. + */ + LYhist_prev_register(&curdoc); /* Why not call _prev instead of zeroing address? */ + free_address(&newdoc); +#ifdef DIRED_SUPPORT + if (lynx_edit_mode) { + DIRED_UNCACHE_2; + } +#endif /* DIRED_SUPPORT */ + } else if (child_lynx == TRUE) { + return (1); /* exit on left arrow in main screen */ + + } else if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(ALREADY_AT_FIRST); + } + return 0; +} + +static void handle_LYK_PREV_PAGE(int *old_c, + int real_c) +{ + if (LYGetNewline() > 1) { + LYChgNewline(-display_lines); + } else if (curdoc.link > 0) { + set_curdoc_link(0); + } else if (*old_c != real_c) { + *old_c = real_c; + HTInfoMsg(ALREADY_AT_BEGIN); + } +} + +static void handle_LYK_PRINT(BOOLEAN *ForcePush, + int *old_c, + int real_c) +{ + if (LYValidate) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(PRINT_DISABLED); + } + return; + } + + /* + * Don't do if already viewing print options page. + */ + if (!LYIsUIPage(curdoc.address, UIP_PRINT_OPTIONS) + && print_options(&newdoc.address, + curdoc.address, HText_getNumOfLines()) >= 0) { + LYRegisterUIPage(newdoc.address, UIP_PRINT_OPTIONS); + StrAllocCopy(newdoc.title, PRINT_OPTIONS_TITLE); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + *ForcePush = TRUE; /* see LYpush() and print_options() */ + if (check_realm) + LYPermitURL = TRUE; + } +} + +static BOOLEAN handle_LYK_QUIT(void) +{ + int c; + + if (LYQuitDefaultYes == TRUE) { + c = HTConfirmDefault(REALLY_QUIT, YES); + } else { + c = HTConfirmDefault(REALLY_QUIT, NO); + } + if (LYQuitDefaultYes == TRUE) { + if (c != NO) { + return (TRUE); + } else { + HTInfoMsg(NO_CANCEL); + } + } else if (c == YES) { + return (TRUE); + } else { + HTInfoMsg(NO_CANCEL); + } + return FALSE; +} + +static BOOLEAN handle_LYK_RAW_TOGGLE(int *cmd) +{ + if (HTLoadedDocumentCharset()) { + HTUserMsg(gettext("charset for this document specified explicitly, sorry...")); + return FALSE; + } else { + LYUseDefaultRawMode = (BOOL) !LYUseDefaultRawMode; + HTUserMsg(LYRawMode ? RAWMODE_OFF : RAWMODE_ON); + HTMLSetCharacterHandling(current_char_set); + return reparse_or_reload(cmd); + } +} + +static void handle_LYK_RELOAD(int real_cmd) +{ + /* + * Check if this is a reply from a POST, and if so, + * seek confirmation if the safe element is not set. - FM + */ + if ((curdoc.post_data != NULL && + curdoc.safe != TRUE) && + HTConfirm(CONFIRM_POST_RESUBMISSION) == FALSE) { + HTInfoMsg(CANCELLED); + return; + } + + /* + * Check to see if should reload source, or load html + */ + + if (HTisDocumentSource()) { + if ((forced_UCLYhdnl = HTMainText_Get_UCLYhndl()) >= 0) + force_old_UCLYhndl_on_reload = TRUE; + srcmode_for_next_retrieval(1); + } + + HEAD_request = HTLoadedDocumentIsHEAD(); + HText_setNoCache(HTMainText); + /* + * Do assume the reloaded document will be the same. - FM + * + * (I don't remember all the reasons why we couldn't assume this. As the + * problems show up, we'll try to fix them, or add warnings. - FM) + */ + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + free_address(&curdoc); /* so it doesn't get pushed */ +#ifdef VMS + lynx_force_repaint(); +#endif /* VMS */ + /* + * Reload should force a cache refresh on a proxy. -- Ari L. + * <luotonen@dxcern.cern.ch> + * + * -- but only if this was really a reload requested by the user, not if we + * jumped here to handle reloading for INLINE_TOGGLE, IMAGE_TOGGLE, + * RAW_TOGGLE, etc. - KW + */ + if (real_cmd == LYK_RELOAD) + reloading = REAL_RELOAD; + + return; +} + +#ifdef DIRED_SUPPORT +static void handle_LYK_REMOVE(BOOLEAN *refresh_screen) +{ + if (lynx_edit_mode && nlinks > 0 && !no_dired_support) { + int linkno = curdoc.link; /* may be changed in local_remove - kw */ + + local_remove(&curdoc); + if (LYAutoUncacheDirLists >= 1) + do_cleanup_after_delete(); + else if (curdoc.link != linkno) + *refresh_screen = TRUE; + } +} +#endif /* DIRED_SUPPORT */ + +static void handle_LYK_RIGHT_LINK(void) +{ + if (curdoc.link < nlinks - 1 && + links[curdoc.link].ly == links[curdoc.link + 1].ly) { + set_curdoc_link(curdoc.link + 1); + } +} + +static void handle_LYK_SHELL(BOOLEAN *refresh_screen, + int *old_c, + int real_c) +{ + if (!no_shell) { + stop_curses(); + printf("%s\r\n", SPAWNING_MSG); +#if defined(__CYGWIN__) + /* handling "exec $SHELL" does not work if $SHELL is null */ + if (LYGetEnv("SHELL") == NULL) { + Cygwin_Shell(); + } else +#endif + { + static char *shell = NULL; + + if (shell == 0) + StrAllocCopy(shell, LYSysShell()); + LYSystem(shell); + } + start_curses(); + *refresh_screen = TRUE; /* for an HText_pageDisplay() */ + } else { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(SPAWNING_DISABLED); + } + } +} + +static void handle_LYK_SOFT_DQUOTES(void) +{ +#ifdef USE_SOURCE_CACHE + if (!HTcan_reparse_document()) { +#endif + /* + * Check if this is a reply from a POST, and if so, seek confirmation + * of reload if the safe element is not set. - FM + */ + if ((curdoc.post_data != NULL && + curdoc.safe != TRUE) && + confirm_post_resub(curdoc.address, NULL, 1, 1) == FALSE) { + HTInfoMsg(WILL_NOT_RELOAD_DOC); + } else { + HText_setNoCache(HTMainText); + move_address(&newdoc, &curdoc); + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + } +#ifdef USE_SOURCE_CACHE + } /* end if no bypass */ +#endif + soft_dquotes = (BOOLEAN) !soft_dquotes; + HTUserMsg(soft_dquotes ? + SOFT_DOUBLE_QUOTE_ON : SOFT_DOUBLE_QUOTE_OFF); +#ifdef USE_SOURCE_CACHE + (void) reparse_document(); +#endif + return; +} + +#define GetAnchorNumber(link) \ + ((nlinks > 0 && link >= 0) \ + ? links[link].anchor_number \ + : -1) +#define GetAnchorLineNo(link) \ + ((nlinks > 0 && link >= 0) \ + ? links[link].anchor_line_num \ + : -1) + +/* + * Adjust the top-of-screen line number for the new document if the redisplayed + * screen would not show the given link-number. + */ +#ifdef USE_SOURCE_CACHE +static int wrap_reparse_document(void) +{ + int result; + int anchor_number = GetAnchorNumber(curdoc.link); + int old_line_num = HText_getAbsLineNumber(HTMainText, anchor_number); + int old_from_top = old_line_num - LYGetNewline() + 1; + + /* get the offset for the current anchor */ + int old_offset = ((nlinks > 0 && curdoc.link >= 0) + ? links[curdoc.link].sgml_offset + : -1); + + CTRACE((tfp, "original anchor %d, topline %d, link %d, offset %d\n", + anchor_number, old_line_num, curdoc.link, old_offset)); + + /* reparse the document (producing a new anchor list) */ + result = reparse_document(); + + /* readjust top-line and link-number */ + if (result && old_offset >= 0) { + int new_anchor = HText_closestAnchor(HTMainText, old_offset); + int new_lineno = HText_getAbsLineNumber(HTMainText, new_anchor); + int top_lineno; + + CTRACE((tfp, "old anchor %d -> new anchor %d\n", anchor_number, new_anchor)); + + if (new_lineno - old_from_top < 0) + old_from_top = new_lineno; + + /* Newline and newdoc.line are 1-based, + * but 0-based lines are simpler to work with. + */ + top_lineno = HText_getPreferredTopLine(HTMainText, new_lineno - + old_from_top) + 1; + CTRACE((tfp, "preferred top %d\n", top_lineno)); + + if (top_lineno != LYGetNewline()) { + LYSetNewline(top_lineno); + newdoc.link = HText_anchorRelativeTo(HTMainText, top_lineno - 1, new_anchor); + curdoc.link = newdoc.link; + CTRACE((tfp, + "adjusted anchor %d, topline %d, link %d, offset %d\n", + new_anchor, + top_lineno, + curdoc.link, + HText_locateAnchor(HTMainText, new_anchor))); + } else { + newdoc.link = curdoc.link; + } + } + return result; +} +#endif /* USE_SOURCE_CACHE */ + +static void handle_LYK_SOURCE(char **ownerS_address_p) +{ +#ifdef USE_SOURCE_CACHE + BOOLEAN canreparse_post = FALSE; +#endif + + /* + * Check if this is a reply from a POST, and if so, + * seek confirmation if the safe element is not set. - FM + */ + if ((curdoc.post_data != NULL && + curdoc.safe != TRUE) && +#ifdef USE_SOURCE_CACHE + (!(canreparse_post = HTcan_reparse_document())) && +#endif + (curdoc.isHEAD ? HTConfirm(CONFIRM_POST_RESUBMISSION) : + confirm_post_resub(curdoc.address, curdoc.title, 1, 1)) == FALSE) { + HTInfoMsg(CANCELLED); + return; + } + + if (HTisDocumentSource()) { + srcmode_for_next_retrieval(-1); + } else { + if (HText_getOwner()) + StrAllocCopy(*ownerS_address_p, HText_getOwner()); + LYUCPushAssumed(HTMainAnchor); + srcmode_for_next_retrieval(1); + } + +#ifdef USE_SOURCE_CACHE + if (wrap_reparse_document()) { + /* + * These normally get cleaned up after getfile() returns; + * since we're not calling getfile(), we have to clean them + * up ourselves. -dsb + */ + HTOutputFormat = WWW_PRESENT; +#ifdef USE_PRETTYSRC + if (psrc_view) + HTMark_asSource(); + psrc_view = FALSE; +#endif + FREE(*ownerS_address_p); /* not used with source_cache */ + LYUCPopAssumed(); /* probably a right place here */ + HTMLSetCharacterHandling(current_char_set); /* restore now */ + + return; + } else if (canreparse_post) { + srcmode_for_next_retrieval(0); + LYUCPopAssumed(); /* probably a right place here */ + return; + } +#endif + + if (curdoc.title) + StrAllocCopy(newdoc.title, curdoc.title); + + free_address(&curdoc); /* so it doesn't get pushed */ + LYforce_no_cache = TRUE; +} + +static void handle_LYK_SWITCH_DTD(void) +{ +#ifdef USE_SOURCE_CACHE + BOOLEAN canreparse = FALSE; + + if (!(canreparse = HTcan_reparse_document())) { +#endif + /* + * Check if this is a reply from a POST, and if so, + * seek confirmation of reload if the safe element + * is not set. - FM, kw + */ + if ((curdoc.post_data != NULL && + curdoc.safe != TRUE) && + confirm_post_resub(curdoc.address, NULL, 1, 1) == FALSE) { + HTInfoMsg(WILL_NOT_RELOAD_DOC); + } else { + /* + * If currently viewing preparsed source, switching to the other + * DTD parsing may show source differences, so stay in source view + * - kw + */ + + /* NOTE: this conditional can be considered incorrect - + current behaviour - when viewing source and + LYPreparsedSource==TRUE, pressing ^V will toggle parser mode + AND switch back from the source view to presentation view.-HV + */ + if (HTisDocumentSource() && LYPreparsedSource) { + srcmode_for_next_retrieval(1); + } + HText_setNoCache(HTMainText); + move_address(&newdoc, &curdoc); + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + } +#ifdef USE_SOURCE_CACHE + } /* end if no bypass */ +#endif + Old_DTD = !Old_DTD; + HTSwitchDTD(!Old_DTD); + HTUserMsg(Old_DTD ? USING_DTD_0 : USING_DTD_1); +#ifdef USE_SOURCE_CACHE + if (canreparse) { + if (HTisDocumentSource() && LYPreparsedSource) { + srcmode_for_next_retrieval(1); + } + if (!reparse_document()) { + srcmode_for_next_retrieval(0); + } + } +#endif + return; +} + +#ifdef DIRED_SUPPORT +static void handle_LYK_TAG_LINK(void) +{ + if (lynx_edit_mode && nlinks > 0 && !no_dired_support) { + if (!strcmp(LYGetHiliteStr(curdoc.link, 0), "..")) + return; /* Never tag the parent directory */ + if (dir_list_style == MIXED_STYLE) { + if (!strcmp(LYGetHiliteStr(curdoc.link, 0), "../")) + return; + } else if (!StrNCmp(LYGetHiliteStr(curdoc.link, 0), "Up to ", 6)) + return; + { + /* + * HTList-based management of tag list, see LYLocal.c - KW + */ + HTList *t1 = tagged; + char *tagname = NULL; + BOOLEAN found = FALSE; + + while ((tagname = (char *) HTList_nextObject(t1)) != NULL) { + if (!strcmp(links[curdoc.link].lname, tagname)) { + found = TRUE; + HTList_removeObject(tagged, tagname); + FREE(tagname); + tagflag(FALSE, curdoc.link); + break; + } + } + if (!found) { + if (tagged == NULL) + tagged = HTList_new(); + tagname = NULL; + StrAllocCopy(tagname, links[curdoc.link].lname); + HTList_addObject(tagged, tagname); + tagflag(TRUE, curdoc.link); + } + } + if (curdoc.link < nlinks - 1) { + set_curdoc_link(curdoc.link + 1); + } else if (!more_text && LYGetNewline() == 1 && curdoc.link == nlinks + - 1) { + set_curdoc_link(0); + } else if (more_text) { /* next page */ + LYChgNewline(display_lines); + } + } +} +#endif /* DIRED_SUPPORT */ + +static void handle_LYK_TOGGLE_HELP(void) +{ + if (user_mode == NOVICE_MODE) { + toggle_novice_line(); + noviceline(more_text); + } +} + +static void handle_LYK_TOOLBAR(BOOLEAN *try_internal, + BOOLEAN *force_load, + int *old_c, + int real_c) +{ + char *cp; + char *toolbar = NULL; + + if (!HText_hasToolbar(HTMainText)) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_TOOLBAR); + } + } else if (*old_c != real_c) { + *old_c = real_c; + cp = trimPoundSelector(curdoc.address); + HTSprintf0(&toolbar, "%s#%s", curdoc.address, LYToolbarName); + restorePoundSelector(cp); + set_address(&newdoc, toolbar); + FREE(toolbar); + *try_internal = TRUE; + *force_load = TRUE; /* force MainLoop to reload */ + } +} + +static void handle_LYK_TRACE_LOG(BOOLEAN *trace_flag_ptr) +{ +#ifndef NO_LYNX_TRACE + /* + * Check whether we've started a TRACE log in this session. - FM + */ + if (LYTraceLogFP == NULL) { + HTUserMsg(NO_TRACELOG_STARTED); + return; + } + + /* + * Don't do if already viewing the TRACE log. - FM + */ + if (LYIsUIPage(curdoc.address, UIP_TRACELOG)) + return; + + /* + * If TRACE mode is on, turn it off during this fetch of the TRACE log, so + * we don't enter stuff about this fetch, and set a flag for turning it + * back on when we return to this loop. Note that we'll miss any messages + * about memory exhaustion if it should occur. It seems unlikely that + * anything else bad might happen, but if it does, we'll miss messages + * about that too. We also fflush(), close, and open it again, to make + * sure all stderr messages thus far will be in the log. - FM + */ + if (!LYReopenTracelog(trace_flag_ptr)) + return; + + LYLocalFileToURL(&(newdoc.address), LYTraceLogPath); + LYRegisterUIPage(newdoc.address, UIP_TRACELOG); + StrAllocCopy(newdoc.title, LYNX_TRACELOG_TITLE); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + if (LYValidate || check_realm) { + LYPermitURL = TRUE; + } + LYforce_no_cache = TRUE; +#else + HTUserMsg(TRACE_DISABLED); +#endif /* NO_LYNX_TRACE */ +} + +#ifdef DIRED_SUPPORT +static void handle_LYK_UPLOAD(void) +{ + /* + * Don't do if already viewing upload options page. + */ + if (LYIsUIPage(curdoc.address, UIP_UPLOAD_OPTIONS)) + return; + + if (lynx_edit_mode && !no_dired_support) { + LYUpload_options(&(newdoc.address), curdoc.address); + StrAllocCopy(newdoc.title, UPLOAD_OPTIONS_TITLE); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + /* + * Uncache the current listing so that it will be updated to included + * the uploaded file if placed in the current directory. - FM + */ + DIRED_UNCACHE_1; + } +} +#endif /* DIRED_SUPPORT */ + +static void handle_LYK_UP_xxx(int *arrowup, + int *old_c, + int real_c, + int scroll_by) +{ + if (LYGetNewline() > 1) { + if (LYGetNewline() - scroll_by < 1) + scroll_by = LYGetNewline() - 1; + LYChgNewline(-scroll_by); + if (nlinks > 0 && curdoc.link > -1) { + if (links[curdoc.link].ly + scroll_by <= display_lines) { + newdoc.link = curdoc.link + + HText_LinksInLines(HTMainText, + LYGetNewline(), + scroll_by); + } else { + *arrowup = TRUE; + } + } + } else if (*old_c != real_c) { + HandleReverseWraparound(); + } +} + +static void handle_LYK_UP_HALF(int *arrowup, + int *old_c, + int real_c) +{ + handle_LYK_UP_xxx(arrowup, old_c, real_c, display_lines / 2); +} + +static void handle_LYK_UP_LINK(int *follow_col, + int *arrowup, + int *old_c, + int real_c) +{ + if (curdoc.link > 0 && + (links[0].ly != links[curdoc.link].ly || + !HText_LinksInLines(HTMainText, 1, LYGetNewline() - 1))) { + /* more links before this on screen, and first of them on + a different line or no previous links before this screen? */ + int newlink; + + if (*follow_col == -1) { + const char *text = LYGetHiliteStr(curdoc.link, 0); + + *follow_col = links[curdoc.link].lx; + + if (text != NULL) + *follow_col += (int) strlen(text) / 2; + } + + newlink = find_link_near_col(*follow_col, -1); + if (newlink > -1) { + set_curdoc_link(newlink); + } else if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(NO_LINKS_ABOVE); + } + + } else if (curdoc.line > 1 && LYGetNewline() > 1) { /* previous page */ + int scrollamount = (LYGetNewline() > display_lines + ? display_lines + : LYGetNewline() - 1); + + LYChgNewline(-scrollamount); + if (scrollamount < display_lines && + nlinks > 0 && curdoc.link > -1 && + links[0].ly - 1 + scrollamount <= display_lines) { + newdoc.link = HText_LinksInLines(HTMainText, + 1, + scrollamount) - 1; + } else { + *arrowup = TRUE; + } + + } else if (*old_c != real_c) { + HandleReverseWraparound(); + } +} + +static void handle_LYK_UP_TWO(int *arrowup, + int *old_c, + int real_c) +{ + handle_LYK_UP_xxx(arrowup, old_c, real_c, 2); +} + +static void handle_LYK_VIEW_BOOKMARK(BOOLEAN *refresh_screen, + int *old_c, + int real_c) +{ + const char *cp; + + if (LYValidate) { + if (*old_c != real_c) { + *old_c = real_c; + HTUserMsg(BOOKMARKS_DISABLED); + } + return; + } + + /* + * See if a bookmark exists. If it does replace newdoc.address with its + * name. + */ + if ((cp = get_bookmark_filename(&newdoc.address)) != NULL) { + if (*cp == '\0' || !strcmp(cp, " ") || + !strcmp(curdoc.address, newdoc.address)) { + if (LYMultiBookmarks != MBM_OFF) + *refresh_screen = TRUE; + return; + } +#ifdef KANJI_CODE_OVERRIDE + if (HTCJK == JAPANESE) { + last_kcode = NOKANJI; /* AUTO */ + } +#endif + LYforce_no_cache = TRUE; /*force the document to be reloaded */ + StrAllocCopy(newdoc.title, BOOKMARK_TITLE); + StrAllocCopy(newdoc.bookmark, BookmarkPage); + LYFreePostData(&newdoc); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + } else { + if (*old_c != real_c) { + *old_c = real_c; + LYMBM_statusline(BOOKMARKS_NOT_OPEN); + LYSleepAlert(); + if (LYMultiBookmarks != MBM_OFF) { + *refresh_screen = TRUE; + } + } + } +} + +static BOOLEAN handle_LYK_VLINKS(int *cmd, + BOOLEAN *newdoc_link_is_absolute) +{ + int c; + + if (LYIsUIPage(curdoc.address, UIP_VLINKS)) { + /* + * Already viewing visited links page, so get out. + */ + *cmd = LYK_PREV_DOC; + return TRUE; + } + + /* + * Print visited links page to file. + */ + c = LYShowVisitedLinks(&newdoc.address); + if (c < 0) { + HTUserMsg(VISITED_LINKS_EMPTY); + return FALSE; + } + StrAllocCopy(newdoc.title, VISITED_LINKS_TITLE); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + if (c > 0) { + /* Select a correct link. */ + *newdoc_link_is_absolute = TRUE; + newdoc.link = c - 1; + } + if (LYValidate || check_realm) { + LYPermitURL = TRUE; + StrAllocCopy(lynxlinksfile, newdoc.address); + } + return FALSE; +} + +void handle_LYK_WHEREIS(int cmd, + BOOLEAN *refresh_screen) +{ + BOOLEAN have_target_onscreen = (BOOLEAN) (!isBEmpty(prev_target) && + HText_pageHasPrevTarget()); + BOOL found; + int oldcur = curdoc.link; /* temporarily remember */ + char *remember_old_target = NULL; + + if (have_target_onscreen) + StrAllocCopy(remember_old_target, prev_target->str); + else + StrAllocCopy(remember_old_target, ""); + + if (cmd == LYK_WHEREIS) { + /* + * Reset prev_target to force prompting for a new search string and to + * turn off highlighting if no search string is entered by the user. + */ + BStrCopy0(prev_target, ""); + } + found = textsearch(&curdoc, &prev_target, + (cmd == LYK_WHEREIS) + ? 0 + : ((cmd == LYK_NEXT) + ? 1 + : -1)); + + /* + * Force a redraw to ensure highlighting of hits even when found on the + * same page, or clearing of highlighting if the default search string was + * erased without replacement. - FM + */ + /* + * Well let's try to avoid it at least in a few cases + * where it is not needed. - kw + */ + if (www_search_result >= 0 && www_search_result != curdoc.line) { + *refresh_screen = TRUE; /* doesn't really matter */ + } else if (!found) { + *refresh_screen = have_target_onscreen; + } else if (!have_target_onscreen && found) { + *refresh_screen = TRUE; + } else if (www_search_result == curdoc.line && + curdoc.link == oldcur && + curdoc.link >= 0 && nlinks > 0 && + links[curdoc.link].ly >= (display_lines / 3)) { + *refresh_screen = TRUE; + } else if ((LYcase_sensitive && 0 != strcmp(prev_target->str, + remember_old_target)) || + (!LYcase_sensitive && 0 != strcasecomp8(prev_target->str, + remember_old_target))) { + *refresh_screen = TRUE; + } + FREE(remember_old_target); +} + +/* + * Get a number from the user and follow that link number. + */ +static void handle_LYK_digit(int c, + BOOLEAN *force_load, + int *old_c, + int real_c, + BOOLEAN *try_internal GCC_UNUSED) +{ + int lindx = ((nlinks > 0) ? curdoc.link : 0); + int number; + char *temp = NULL; + + /* pass cur line num for use in follow_link_number() + * Note: Current line may not equal links[cur].line + */ + number = curdoc.line; + switch (follow_link_number(c, lindx, &newdoc, &number)) { + case DO_LINK_STUFF: + /* + * Follow a normal link. + */ + set_address(&newdoc, links[lindx].lname); + StrAllocCopy(newdoc.title, LYGetHiliteStr(lindx, 0)); + /* + * For internal links, retain POST content if present. If we are on + * the List Page, prevent pushing it on the history stack. Otherwise + * set try_internal to signal that the top of the loop should attempt + * to reposition directly, without calling getfile. - kw + */ + if (track_internal_links) { + if (links[lindx].type == WWW_INTERN_LINK_TYPE) { + LYinternal_flag = TRUE; + newdoc.internal_link = TRUE; + if (LYIsListpageTitle(NonNull(curdoc.title)) && + (LYIsUIPage(curdoc.address, UIP_LIST_PAGE) || + LYIsUIPage(curdoc.address, UIP_ADDRLIST_PAGE))) { + if (check_history()) { + LYinternal_flag = TRUE; + } else { + HTLastConfirmCancelled(); /* reset flag */ + if (!confirm_post_resub(newdoc.address, + newdoc.title, + ((LYresubmit_posts && + HText_POSTReplyLoaded(&newdoc)) + ? 1 + : 2), + 2)) { + if (HTLastConfirmCancelled() || + (LYresubmit_posts && + !HText_POSTReplyLoaded(&newdoc))) { + /* cancel the whole thing */ + LYforce_no_cache = FALSE; + reloading = FALSE; + copy_address(&newdoc, &curdoc); + StrAllocCopy(newdoc.title, curdoc.title); + newdoc.internal_link = curdoc.internal_link; + HTInfoMsg(CANCELLED); + if (nlinks > 0) + HText_pageDisplay(curdoc.line, prev_target->str); + break; + } else if (LYresubmit_posts) { + /* If LYresubmit_posts is set, and the + answer was No, and we have a cached + copy, then use it. - kw */ + LYforce_no_cache = FALSE; + } else { + /* if No, but not ^C or ^G, drop + * the post data. Maybe the link + * wasn't meant to be internal after + * all, here we can recover from that + * assumption. - kw */ + LYFreePostData(&newdoc); + newdoc.internal_link = FALSE; + HTAlert(DISCARDING_POST_DATA); + } + } + } + /* + * Don't push the List Page if we follow an internal link given + * by it. - kw + */ + free_address(&curdoc); + } else + *try_internal = TRUE; + if (!(LYresubmit_posts && newdoc.post_data)) + LYinternal_flag = TRUE; + *force_load = TRUE; + break; + } else { + /* + * Free POST content if not an internal link. - kw + */ + LYFreePostData(&newdoc); + } + } + /* + * Might be an anchor in the same doc from a POST form. If so, don't + * free the content. -- FM + */ + if (are_different(&curdoc, &newdoc)) { + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + if (isLYNXMESSAGES(newdoc.address)) + LYforce_no_cache = TRUE; + } + newdoc.internal_link = FALSE; + *force_load = TRUE; /* force MainLoop to reload */ + break; + + case DO_GOTOLINK_STUFF: + /* + * Position on a normal link, don't follow it. - KW + */ + LYSetNewline(newdoc.line); + newdoc.line = 1; + if (LYGetNewline() == curdoc.line) { + /* + * It's a link in the current page. - FM + */ + if (nlinks > 0 && curdoc.link > -1) { + if (curdoc.link == newdoc.link) { + /* + * It's the current link, and presumably reflects a typo in + * the statusline entry, so issue a statusline message for + * the typo-prone users (like me 8-). - FM + */ + HTSprintf0(&temp, LINK_ALREADY_CURRENT, number); + HTUserMsg(temp); + FREE(temp); + } else { + /* + * It's a different link on this page, + */ + set_curdoc_link(newdoc.link); + newdoc.link = 0; + } + } + } + break; /* nothing more to do */ + + case DO_GOTOPAGE_STUFF: + /* + * Position on a page in this document. - FM + */ + LYSetNewline(newdoc.line); + newdoc.line = 1; + if (LYGetNewline() == curdoc.line) { + /* + * It's the current page, so issue a statusline message for the + * typo-prone users (like me 8-). - FM + */ + if (LYGetNewline() <= 1) { + HTInfoMsg(ALREADY_AT_BEGIN); + } else if (!more_text) { + HTInfoMsg(ALREADY_AT_END); + } else { + HTSprintf0(&temp, ALREADY_AT_PAGE, number); + HTUserMsg(temp); + FREE(temp); + } + } + break; + + case PRINT_ERROR: + *old_c = real_c; + HTUserMsg(BAD_LINK_NUM_ENTERED); + break; + } + return; +} + +#ifdef SUPPORT_CHDIR + +/* original implementation by VH */ +void handle_LYK_CHDIR(void) +{ + static bstring *buf = NULL; + char *p = NULL; + + if (no_chdir) { + HTUserMsg(CHDIR_DISABLED); + return; + } + + _statusline(gettext("cd to:")); + if (LYgetBString(&buf, FALSE, 0, NORECALL) < 0 || isBEmpty(buf)) { + HTInfoMsg(CANCELLED); + return; + } + + if (LYIsTilde(buf->str[0]) && + (LYIsPathSep(buf->str[1]) || buf->str[1] == '\0')) { + HTSprintf0(&p, "%s%s", Home_Dir(), buf->str + 1); + } else { + StrAllocCopy(p, buf->str); + } + + CTRACE((tfp, "changing directory to '%s'\n", p)); + if (chdir(p)) { + switch (errno) { + case EACCES: + HTInfoMsg(COULD_NOT_ACCESS_DIR); + break; + case ENOENT: + HTInfoMsg(gettext("No such directory")); + break; + case ENOTDIR: + HTInfoMsg(gettext("A component of path is not a directory")); + break; + default: + HTInfoMsg(gettext("failed to change directory")); + break; + } + } else { +#ifdef DIRED_SUPPORT + /*if in dired, load content of other directory */ + if (!no_dired_support + && (lynx_edit_mode || (LYIsUIPage(curdoc.address, UIP_DIRED_MENU)))) { + char buf2[LY_MAXPATH]; + char *addr = NULL; + + Current_Dir(buf2); + LYLocalFileToURL(&addr, buf2); + + newdoc.address = addr; + newdoc.isHEAD = FALSE; + StrAllocCopy(newdoc.title, gettext("A URL specified by the user")); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + /**force_load = TRUE;*/ + if (lynx_edit_mode) { + DIRED_UNCACHE_2; + } + } else +#endif + HTInfoMsg(OPERATION_DONE); + } + FREE(p); +} + +static void handle_LYK_PWD(void) +{ + char buffer[LY_MAXPATH]; + int save_secs = InfoSecs; + BOOLEAN save_wait = no_pause; + + if (Secs2SECS(save_secs) < 1) + InfoSecs = SECS2Secs(1); + no_pause = FALSE; + + HTInfoMsg(Current_Dir(buffer)); + + InfoSecs = save_secs; + no_pause = save_wait; +} +#endif + +#ifdef USE_CURSES_PADS +/* + * Having jumps larger than this is counter-productive. Indeed, it is natural + * to expect that when the relevant text appears, one would "overshoot" and + * would scroll 3-4 extra full screens. When going back, the "accumulation" + * logic would again start moving in full screens, so one would overshoot + * again, etc. + * + * Going back, one can fix it in 28 keypresses. The relevant text will appear + * on the screen soon enough for the key-repeat to become not that important, + * and we are still moving in smaller steps than when we overshot. Since key + * repeat is not important, even if we overshoot again, it is going to be by 30 + * steps, which is easy to fix by reversing the direction again. + */ +static int repeat_to_delta(int n) +{ + int threshold = LYcols / 3; + + while (threshold > 0) { + if (n >= threshold) { + n = threshold; + break; + } + threshold = (threshold * 2) / 3; + } + return n; +} + +static void handle_LYK_SHIFT_LEFT(BOOLEAN *flag, int count) +{ + if (!LYwideLines) { + HTAlert(SHIFT_VS_LINEWRAP); + return; + } + if (LYshiftWin > 0) { + LYshiftWin -= repeat_to_delta(count); + *flag = TRUE; + } + if (LYshiftWin < 0) + LYshiftWin = 0; +} + +static void handle_LYK_SHIFT_RIGHT(BOOLEAN *flag, int count) +{ + if (!LYwideLines) { + HTAlert(SHIFT_VS_LINEWRAP); + return; + } + LYshiftWin += repeat_to_delta(count); + *flag = TRUE; +} + +static BOOLEAN handle_LYK_LINEWRAP_TOGGLE(int *cmd, + BOOLEAN *flag) +{ + static const char *choices[] = + { + "Try to fit screen width", + "No line wrap in columns", + "Wrap columns at screen width", + "Wrap columns at 3/4 screen width", + "Wrap columns at 2/3 screen width", + "Wrap columns at 1/2 screen width", + "Wrap columns at 1/3 screen width", + "Wrap columns at 1/4 screen width", + NULL + }; + static int wrap[] = + { + 0, + 0, + 12, /* In units of 1/12 */ + 9, + 8, + 6, + 4, + 3 + }; + int c; + int code = FALSE; + + CTRACE((tfp, "Entering handle_LYK_LINEWRAP_TOGGLE\n")); + if (LYwin != stdscr) { + /* Somehow the mouse is over the number instead of being over the + name, so we decrease x. */ + c = LYChoosePopup(!LYwideLines, + LYlines / 2 - 2, + LYcolLimit / 2 - 6, + choices, (int) TABLESIZE(choices) - 1, + FALSE, TRUE); + /* + * LYhandlePopupList() wasn't really meant to be used outside of + * old-style Options menu processing. One result of mis-using it here + * is that we have to deal with side-effects regarding SIGINT signal + * handler and the term_options global variable. - kw + */ + if (!term_options) { + CTRACE((tfp, + "...setting LYwideLines %d, LYtableCols %d (have %d and %d)\n", + c, wrap[c], + LYwideLines, + LYtableCols)); + + LYwideLines = c; + LYtableCols = wrap[c]; + + if (LYwideLines == 0) + LYshiftWin = 0; + *flag = TRUE; + HTUserMsg(LYwideLines ? LINEWRAP_OFF : LINEWRAP_ON); + code = reparse_or_reload(cmd); + } + } + return (BOOLEAN) code; +} +#endif + +#ifdef USE_MAXSCREEN_TOGGLE +static BOOLEAN handle_LYK_MAXSCREEN_TOGGLE(int *cmd) +{ + static int flag = 0; + + CTRACE((tfp, "Entering handle_LYK_MAXSCREEN_TOGGLE\n")); + if (flag) { + CTRACE((tfp, "Calling recoverWindowSize()\n")); + recoverWindowSize(); + flag = 0; + } else { + CTRACE((tfp, "Calling maxmizeWindowSize()\n")); + maxmizeWindowSize(); + flag = 1; + } + return reparse_or_reload(cmd); +} +#endif + +#ifdef LY_FIND_LEAKS +#define CleanupMainLoop() \ + BStrFree(prev_target); \ + BStrFree(user_input_buffer) +#else +#define CleanupMainLoop() /* nothing */ +#endif + +/* + * Here's where we do all the work. + * mainloop is basically just a big switch dependent on the users input. I + * have tried to offload most of the work done here to procedures to make it + * more modular, but this procedure still does a lot of variable manipulation. + * This needs some work to make it neater. - Lou Moutilli + * (memoir from the original Lynx - FM) + */ +int mainloop(void) +{ +#if defined(WIN_EX) /* 1997/10/08 (Wed) 14:52:06 */ + char sjis_buff[MAX_LINE]; + char temp_buff[sizeof(sjis_buff) * 4]; +#endif + int c = 0; + int real_c = 0; + int old_c = 0; + int pending_form_c = -1; + int cmd = LYK_DO_NOTHING, real_cmd = LYK_DO_NOTHING; + int getresult; + int arrowup = FALSE, show_help = FALSE; + bstring *user_input_buffer = NULL; + const char *cshelpfile = NULL; + BOOLEAN first_file = TRUE; + BOOLEAN popped_doc = FALSE; + BOOLEAN refresh_screen = FALSE; + BOOLEAN force_load = FALSE; + BOOLEAN try_internal = FALSE; + BOOLEAN crawl_ok = FALSE; + BOOLEAN vi_keys_flag = vi_keys; + BOOLEAN emacs_keys_flag = emacs_keys; + BOOLEAN trace_mode_flag = FALSE; + BOOLEAN forced_HTML_mode = LYforce_HTML_mode; + char cfile[128]; + FILE *cfp; + char *cp; + int ch = 0; + RecallType recall = NORECALL; + int URLTotal = 0; + int URLNum; + BOOLEAN FirstURLRecall = TRUE; + char *temp = NULL; + BOOLEAN ForcePush = FALSE; + BOOLEAN override_LYresubmit_posts = FALSE; + BOOLEAN newdoc_link_is_absolute = FALSE; + BOOLEAN curlink_is_editable; + BOOLEAN use_last_tfpos; + unsigned int len; + int i; + int follow_col = -1, key_count = 0, last_key = 0; + int tmpNewline; + DocInfo tmpDocInfo; + + /* "internal" means "within the same document, with certainty". It includes a + * space so it cannot conflict with any (valid) "TYPE" attributes on A + * elements. [According to which DTD, anyway??] - kw + */ + HTInternalLink = HTAtom_for("internal link"); /* init, used as const */ + +#ifndef WWW_SOURCE + WWW_SOURCE = HTAtom_for(STR_SOURCE); /* init, used as const */ +#endif + + /* + * curdoc.address contains the name of the file that is currently open. + * newdoc.address contains the name of the file that will soon be + * opened if it exits. + * prev_target contains the last search string the user searched for. + * newdoc.title contains the link name that the user last chose to get + * into the current link (file). + */ + /* initialize some variables */ + newdoc.address = NULL; + newdoc.title = NULL; + newdoc.post_data = NULL; + newdoc.post_content_type = NULL; + newdoc.bookmark = NULL; + newdoc.internal_link = FALSE; + curdoc.address = NULL; + curdoc.title = NULL; + curdoc.post_data = NULL; + curdoc.post_content_type = NULL; + curdoc.bookmark = NULL; + curdoc.internal_link = FALSE; +#ifdef USE_COLOR_STYLE + curdoc.style = NULL; + newdoc.style = NULL; +#endif +#ifndef USE_SESSIONS + nhist = 0; +#endif + BStrCopy0(user_input_buffer, ""); + BStrCopy0(prev_target, ""); +#ifdef LY_FIND_LEAKS + atexit(free_mainloop_variables); +#endif + initialize: + set_address(&newdoc, startfile); + StrAllocCopy(startrealm, startfile); + StrAllocCopy(newdoc.title, gettext("Entry into main screen")); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.line = 1; + newdoc.link = 0; + +#ifdef USE_SLANG + if (TRACE && LYCursesON) { + LYaddstr("\n"); + LYrefresh(); + } +#endif /* USE_SLANG */ + CTRACE((tfp, "Entering mainloop, startfile=%s\n", startfile)); + + if (form_post_data) { + BStrCopy0(newdoc.post_data, form_post_data); + StrAllocCopy(newdoc.post_content_type, + "application/x-www-form-urlencoded"); + } else if (form_get_data) { + StrAllocCat(newdoc.address, form_get_data); + } + + if (bookmark_start) { + if (LYValidate) { + HTAlert(BOOKMARKS_DISABLED); + bookmark_start = FALSE; + goto initialize; + } else if (traversal) { + HTAlert(BOOKMARKS_NOT_TRAVERSED); + traversal = FALSE; + crawl = FALSE; + bookmark_start = FALSE; + goto initialize; + } else { + const char *cp1; + + /* + * See if a bookmark page exists. If it does, replace + * newdoc.address with its name + */ + if ((cp1 = get_bookmark_filename(&newdoc.address)) != NULL && + *cp1 != '\0' && strcmp(cp1, " ")) { + StrAllocCopy(newdoc.title, BOOKMARK_TITLE); + StrAllocCopy(newdoc.bookmark, BookmarkPage); + StrAllocCopy(startrealm, newdoc.address); + LYFreePostData(&newdoc); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + CTRACE((tfp, "Using bookmarks=%s\n", newdoc.address)); + } else { + HTUserMsg(BOOKMARKS_NOT_OPEN); + bookmark_start = FALSE; + goto initialize; + } + } + } + + FREE(form_post_data); + FREE(form_get_data); + + LYSetDisplayLines(); + + while (TRUE) { +#ifdef USE_COLOR_STYLE + if (curdoc.style != NULL) + force_load = TRUE; +#endif + /* + * If newdoc.address is different from curdoc.address then we need to + * go out and find and load newdoc.address. + */ + if (LYforce_no_cache || force_load || + are_different(&curdoc, &newdoc)) { + + force_load = FALSE; /* done */ + if (TRACE && LYCursesON) { + LYHideCursor(); /* make sure cursor is down */ +#ifdef USE_SLANG + LYaddstr("\n"); +#endif /* USE_SLANG */ + LYrefresh(); + } + try_again: + /* + * Push the old file onto the history stack if we have a current + * doc and a new address. - FM + */ + if (curdoc.address && newdoc.address) { + /* + * Don't actually push if this is a LYNXDOWNLOAD URL, because + * that returns NORMAL even if it fails due to a spoof attempt + * or file access problem, and we set the newdoc structure + * elements to the curdoc structure elements under case NORMAL. + * - FM + */ + if (!isLYNXDOWNLOAD(newdoc.address)) { + LYpush(&curdoc, ForcePush); + } + } else if (!newdoc.address) { + /* + * If newdoc.address is empty then pop a file and load it. - + * FM + */ + LYhist_prev(&newdoc); + popped_doc = TRUE; + + /* + * If curdoc had been reached via an internal + * (fragment) link from what we now have just + * popped into newdoc, then override non-caching in + * all cases. - kw + */ + if (track_internal_links && + curdoc.internal_link && + !are_phys_different(&curdoc, &newdoc)) { + LYinternal_flag = TRUE; + LYoverride_no_cache = TRUE; + LYforce_no_cache = FALSE; + try_internal = TRUE; + } else { + /* + * Force a no_cache override unless it's a bookmark file, + * or it has POST content and LYresubmit_posts is set + * without safe also set, and we are not going to another + * position in the current document or restoring the + * previous document due to a NOT_FOUND or NULLFILE return + * value from getfile(). - FM + */ + if ((newdoc.bookmark != NULL) || + (newdoc.post_data != NULL && + !newdoc.safe && + LYresubmit_posts && + !override_LYresubmit_posts && + NO_INTERNAL_OR_DIFFERENT(&curdoc, &newdoc))) { + LYoverride_no_cache = FALSE; + } else { + LYoverride_no_cache = TRUE; + } + } + } + override_LYresubmit_posts = FALSE; + + if (HEAD_request) { + /* + * Make SURE this is an appropriate request. - FM + */ + if (newdoc.address) { + if (LYCanDoHEAD(newdoc.address) == TRUE) { + newdoc.isHEAD = TRUE; + } else if (isLYNXIMGMAP(newdoc.address)) { + if (LYCanDoHEAD(newdoc.address + LEN_LYNXIMGMAP) == TRUE) { + StrAllocCopy(temp, newdoc.address + LEN_LYNXIMGMAP); + free_address(&newdoc); + newdoc.address = temp; + newdoc.isHEAD = TRUE; + temp = NULL; + } + } + } + try_internal = FALSE; + HEAD_request = FALSE; + } + + /* + * If we're getting the TRACE log and it's not new, check whether + * its HText structure has been dumped, and if so, fflush() and + * fclose() it to ensure it's fully updated, and then fopen() it + * again. - FM + */ + if (LYUseTraceLog == TRUE && + trace_mode_flag == FALSE && + LYTraceLogFP != NULL && + LYIsUIPage(newdoc.address, UIP_TRACELOG)) { + DocAddress WWWDoc; + HTParentAnchor *tmpanchor; + + WWWDoc.address = newdoc.address; + WWWDoc.post_data = newdoc.post_data; + WWWDoc.post_content_type = newdoc.post_content_type; + WWWDoc.bookmark = newdoc.bookmark; + WWWDoc.isHEAD = newdoc.isHEAD; + WWWDoc.safe = newdoc.safe; + tmpanchor = HTAnchor_findAddress(&WWWDoc); + if ((HText *) HTAnchor_document(tmpanchor) == NULL) { + if (!LYReopenTracelog(&trace_mode_flag)) { + old_c = 0; + cmd = LYK_PREV_DOC; + goto new_cmd; + } + } + } + + LYRequestTitle = newdoc.title; + if (newdoc.bookmark) + LYforce_HTML_mode = TRUE; + if (LYValidate && + startfile_ok && + newdoc.address && startfile && homepage && + (!strcmp(newdoc.address, startfile) || + !strcmp(newdoc.address, homepage))) { + LYPermitURL = TRUE; + } + + /* reset these two variables here before getfile() + * so they will be available in partial mode + * (was previously implemented in case NORMAL). + */ + BStrCopy0(prev_target, ""); /* Reset for new coming document */ + LYSetNewline(newdoc.line); /* set for LYGetNewline() */ + +#ifdef USE_PRETTYSRC + psrc_first_tag = TRUE; +#endif +#ifdef TEXTFIELDS_MAY_NEED_ACTIVATION + textfields_need_activation = textfields_activation_option; +#endif + FREE(LYRequestReferer); + /* + * Don't send Referer if we have to load a document again that we + * got from the history stack. We don't know any more how we + * originally got to that page. Using a Referer based on the + * current HTMainText could only be right by coincidence. - kw + * 1999-11-01 + */ + if (popped_doc) + LYNoRefererForThis = TRUE; + + if (track_internal_links) { + if (try_internal) { + if (newdoc.address && + isLYNXIMGMAP(newdoc.address)) { + try_internal = FALSE; + } else if (curdoc.address && + isLYNXIMGMAP(curdoc.address)) { + try_internal = FALSE; + } + } + if (try_internal) { + char *hashp = findPoundSelector(newdoc.address); + + if (hashp) { + HTFindPoundSelector(hashp + 1); + } + getresult = (HTMainText != NULL) ? NORMAL : NOT_FOUND; + try_internal = FALSE; /* done */ + /* fix up newdoc.address which may have been fragment-only */ + if (getresult == NORMAL && (!hashp || hashp == newdoc.address)) { + if (!hashp) { + set_address(&newdoc, HTLoadedDocumentURL()); + } else { + StrAllocCopy(temp, HTLoadedDocumentURL()); + StrAllocCat(temp, hashp); /* append fragment */ + set_address(&newdoc, temp); + FREE(temp); + } + } + } else { + if (newdoc.internal_link && newdoc.address && + *newdoc.address == '#' && nhist > 0) { + char *cp0; + + if (isLYNXIMGMAP(HDOC(nhist_1).address)) + cp0 = HDOC(nhist_1).address + LEN_LYNXIMGMAP; + else + cp0 = HDOC(nhist_1).address; + StrAllocCopy(temp, cp0); + (void) trimPoundSelector(temp); + StrAllocCat(temp, newdoc.address); + free_address(&newdoc); + newdoc.address = temp; + temp = NULL; + } + tmpDocInfo = newdoc; + tmpNewline = -1; + fill_JUMP_Params(&newdoc.address); + getresult = getfile(&newdoc, &tmpNewline); + if (!reloading && !popped_doc && (tmpNewline >= 0)) { + LYSetNewline(tmpNewline); + } else { + newdoc.link = tmpDocInfo.link; + } + } + } else { + tmpDocInfo = newdoc; + tmpNewline = -1; + fill_JUMP_Params(&newdoc.address); + getresult = getfile(&newdoc, &tmpNewline); + if (!reloading && !popped_doc && (tmpNewline >= 0)) { + LYSetNewline(tmpNewline); + } else { + newdoc.link = tmpDocInfo.link; + } + } + +#ifdef INACTIVE_INPUT_STYLE_VH + textinput_redrawn = FALSE; /* for sure */ +#endif + + switch (getresult) { + + case NOT_FOUND: + /* + * OK! can't find the file, so it must not be around now. Do + * any error logging, if appropriate. + */ + LYoverride_no_cache = FALSE; /* Was TRUE if popped. - FM */ + LYinternal_flag = FALSE; /* Reset to default. - kw */ + turn_trace_back_on(&trace_mode_flag); + if (!first_file && !LYCancelledFetch) { + /* + * Do error mail sending and/or traversal stuff. Note that + * the links[] elements may not be valid at this point, if + * we did call HTuncache_current_document! This should not + * have happened for traversal, but for sending error mail + * check that HTMainText exists for this reason. - kw + */ + if (error_logging && nhist > 0 && !popped_doc && + !LYUserSpecifiedURL && + HTMainText && + nlinks > 0 && curdoc.link < nlinks && + !isLYNXHIST(NonNull(newdoc.address)) && + !isLYNXCACHE(NonNull(newdoc.address)) && + !isLYNXCOOKIE(NonNull(newdoc.address))) { + char *mail_owner = NULL; + + if (owner_address && isMAILTO_URL(owner_address)) { + mail_owner = owner_address + LEN_MAILTO_URL; + } + /* + * Email a bad link message to the owner of the + * document, or to ALERTMAIL if defined, but NOT to + * lynx-dev (it is rejected in mailmsg). - FM, kw + */ +#ifndef ALERTMAIL + if (mail_owner) +#endif + mailmsg(curdoc.link, + mail_owner, + HDOC(nhist_1).address, + HDOC(nhist_1).title); + } + if (traversal) { + FILE *ofp; + + if ((ofp = LYAppendToTxtFile(TRAVERSE_ERRORS)) == NULL) { + if ((ofp = LYNewTxtFile(TRAVERSE_ERRORS)) == NULL) { + perror(NOOPEN_TRAV_ERR_FILE); + exit_immediately(EXIT_FAILURE); + } + } + if (nhist > 0) { + fprintf(ofp, + "%s %s\tin %s\n", + popped_doc ? + newdoc.address : links[curdoc.link].lname, + links[curdoc.link].target, + HDOC(nhist_1).address); + } else { + fprintf(ofp, + "%s %s\t\n", + popped_doc ? + newdoc.address : links[curdoc.link].lname, + links[curdoc.link].target); + } + LYCloseOutput(ofp); + } + } + + /* + * Fall through to do the NULL stuff and reload the old file, + * unless the first file wasn't found or has gone missing. + */ + if (!nhist) { + /* + * If nhist = 0 then it must be the first file. + */ + CleanupMainLoop(); + exit_immediately_with_error_message(NOT_FOUND, first_file); + return (EXIT_FAILURE); + } + /* FALLTHRU */ + + case NULLFILE: + /* + * Not supposed to return any file. + */ + LYoverride_no_cache = FALSE; /* Was TRUE if popped. - FM */ + popped_doc = FALSE; /* Was TRUE if popped. - FM */ + LYinternal_flag = FALSE; /* Reset to default. - kw */ + turn_trace_back_on(&trace_mode_flag); + free_address(&newdoc); /* to pop last doc */ + FREE(newdoc.bookmark); + LYJumpFileURL = FALSE; + reloading = FALSE; + LYPermitURL = FALSE; + LYCancelledFetch = FALSE; + ForcePush = FALSE; + LYforce_HTML_mode = FALSE; + force_old_UCLYhndl_on_reload = FALSE; + if (traversal) { + crawl_ok = FALSE; + if (traversal_link_to_add) { + /* + * It's a binary file, or the fetch attempt failed. + * Add it to TRAVERSE_REJECT_FILE so we don't try again + * in this run. + */ + if (!lookup_reject(traversal_link_to_add)) { + add_to_reject_list(traversal_link_to_add); + } + FREE(traversal_link_to_add); + } + } + /* + * Make sure the first file was found and has not gone missing. + */ + if (!nhist) { + /* + * If nhist = 0 then it must be the first file. + */ + if (first_file && homepage && + !LYSameFilename(homepage, startfile)) { + /* + * Couldn't return to the first file but there is a + * homepage we can use instead. Useful for when the + * first URL causes a program to be invoked. - GL + * + * But first make sure homepage is different from + * startfile (above), then make it the same (below) so + * we don't enter an infinite getfile() loop on on + * failures to find the files. - FM + */ + set_address(&newdoc, homepage); + LYFreePostData(&newdoc); + FREE(newdoc.bookmark); + StrAllocCopy(startfile, homepage); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + newdoc.internal_link = FALSE; + goto try_again; + } else { + CleanupMainLoop(); + exit_immediately_with_error_message(NULLFILE, first_file); + return (EXIT_FAILURE); + } + } + + /* + * If we're going to pop from history because getfile didn't + * succeed, reset LYforce_no_cache first. This would have been + * done in HTAccess.c if the request got that far, but the URL + * may have been handled or rejected in getfile without taking + * care of that. - kw + */ + LYforce_no_cache = FALSE; + /* + * Retrieval of a newdoc just failed, and just going to + * try_again would pop the next doc from history and try to get + * it without further questions. This may not be the right + * thing to do if we have POST data, so fake a PREV_DOC key if + * it seems that some prompting should be done. This doesn't + * affect the traversal logic, since with traversal POST data + * can never occur. - kw + */ + if (HDOC(nhist - 1).post_data && + !HDOC(nhist - 1).safe) { + if (HText_POSTReplyLoaded((DocInfo *) &history[(nhist_1)])) { + override_LYresubmit_posts = TRUE; + goto try_again; + } + /* Set newdoc fields, just in case the PREV_DOC gets + * cancelled. - kw + */ + if (!curdoc.address) { + set_address(&newdoc, HTLoadedDocumentURL()); + StrAllocCopy(newdoc.title, HTLoadedDocumentTitle()); + if (HTMainAnchor + && HTMainAnchor->post_data) { + BStrCopy(newdoc.post_data, + HTMainAnchor->post_data); + StrAllocCopy(newdoc.post_content_type, + HTMainAnchor->post_content_type); + } else { + BStrFree(newdoc.post_data); + } + newdoc.isHEAD = HTLoadedDocumentIsHEAD(); + newdoc.safe = HTLoadedDocumentIsSafe(); + newdoc.internal_link = FALSE; + } else { + copy_address(&newdoc, &curdoc); + StrAllocCopy(newdoc.title, curdoc.title); + BStrCopy(newdoc.post_data, curdoc.post_data); + StrAllocCopy(newdoc.post_content_type, + curdoc.post_content_type); + newdoc.isHEAD = curdoc.isHEAD; + newdoc.safe = curdoc.safe; + newdoc.internal_link = curdoc.internal_link; + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + } + cmd = LYK_PREV_DOC; + goto new_cmd; + } + override_LYresubmit_posts = TRUE; + goto try_again; + + case NORMAL: + /* + * Marvelously, we got the document! + */ + LYoverride_no_cache = FALSE; /* Was TRUE if popped. - FM */ + LYinternal_flag = FALSE; /* Reset to default. - kw */ + turn_trace_back_on(&trace_mode_flag); + + /* + * If it's the first file and we're interactive, check whether + * it's a bookmark file which was not accessed via the -book + * switch. - FM + */ + if (((first_file == TRUE) && + (dump_output_immediately == FALSE) && + isEmpty(newdoc.bookmark)) && + ((LYisLocalFile(newdoc.address) == TRUE) && + !(strcmp(NonNull(HText_getTitle()), + BOOKMARK_TITLE))) && + (temp = HTParse(newdoc.address, "", + PARSE_PATH + PARSE_PUNCTUATION)) != NULL) { + const char *name = wwwName(Home_Dir()); + + len = (unsigned) strlen(name); +#ifdef VMS + if (!strncasecomp(temp, name, len) && + strlen(temp) > len) +#else + if (!StrNCmp(temp, name, len) && + strlen(temp) > len) +#endif /* VMS */ + { + /* + * We're interactive and this might be a bookmark file + * entered as a startfile rather than invoked via + * -book. Check if it's in our bookmark file list, and + * if so, reload if with the relevant bookmark elements + * set. - FM + */ + cp = NULL; + if (temp[len] == '/') { + if (StrChr(&temp[(len + 1)], '/')) { + HTSprintf0(&cp, ".%s", &temp[len]); + } else { + StrAllocCopy(cp, &temp[(len + 1)]); + } + } else { + StrAllocCopy(cp, &temp[len]); + } + for (i = 0; i <= MBM_V_MAXFILES; i++) { + if (MBM_A_subbookmark[i] && + LYSameFilename(cp, MBM_A_subbookmark[i])) { + StrAllocCopy(BookmarkPage, + MBM_A_subbookmark[i]); + break; + } + } + FREE(cp); + if (i <= MBM_V_MAXFILES) { + FREE(temp); + if (LYValidate) { + HTAlert(BOOKMARKS_DISABLED); + CleanupMainLoop(); + return (EXIT_FAILURE); + } + if ((temp = HTParse(newdoc.address, "", + PARSE_ACCESS + PARSE_HOST + PARSE_PUNCTUATION))) { + set_address(&newdoc, temp); + HTuncache_current_document(); + free_address(&curdoc); + StrAllocCat(newdoc.address, + wwwName(Home_Dir())); + StrAllocCat(newdoc.address, "/"); + StrAllocCat(newdoc.address, + (StrNCmp(BookmarkPage, "./", 2) ? + BookmarkPage : + (BookmarkPage + 2))); + StrAllocCopy(newdoc.title, BOOKMARK_TITLE); + StrAllocCopy(newdoc.bookmark, BookmarkPage); +#ifdef USE_COLOR_STYLE + if (curdoc.style) + StrAllocCopy(newdoc.style, curdoc.style); +#endif + StrAllocCopy(startrealm, newdoc.address); + LYFreePostData(&newdoc); + newdoc.isHEAD = FALSE; + newdoc.safe = FALSE; + FREE(temp); + if (!strcmp(homepage, startfile)) + StrAllocCopy(homepage, newdoc.address); + StrAllocCopy(startfile, newdoc.address); + CTRACE((tfp, "Reloading as bookmarks=%s\n", + newdoc.address)); + goto try_again; + } + } + } + cp = NULL; + } + FREE(temp); + + if (traversal) { + /* + * During traversal build up lists of all links traversed. + * Traversal mode is a special feature for traversing http + * links in the web. + */ + if (traversal_link_to_add) { + /* + * Add the address we sought to TRAVERSE_FILE. + */ + if (!lookup_link(traversal_link_to_add)) + add_to_table(traversal_link_to_add); + FREE(traversal_link_to_add); + } + if (curdoc.address && curdoc.title && + !isLYNXIMGMAP(curdoc.address)) + /* + * Add the address we got to TRAVERSE_FOUND_FILE. + */ + add_to_traverse_list(curdoc.address, curdoc.title); + } + + /* + * If this was a LYNXDOWNLOAD, we still have curdoc, not a + * newdoc, so reset the address, title and positioning + * elements. - FM + */ + if (newdoc.address && curdoc.address && + isLYNXDOWNLOAD(newdoc.address)) { + copy_address(&newdoc, &curdoc); + StrAllocCopy(newdoc.title, NonNull(curdoc.title)); + StrAllocCopy(newdoc.bookmark, curdoc.bookmark); + newdoc.line = curdoc.line; + newdoc.link = curdoc.link; + newdoc.internal_link = FALSE; /* can't be true. - kw */ + } + + /* + * Set Newline to the saved line. It contains the line the + * user was on if s/he has been in the file before, or it is 1 + * if this is a new file. + * + * We already set Newline before getfile() and probably update + * it explicitly if popping from the history stack via LYpop() + * or LYpop_num() within getfile() cycle. + * + * In partial mode, Newline was probably updated in + * LYMainLoop_pageDisplay() if user scrolled the document while + * loading. Incremental loading stage already closed in + * HT*Copy(). + */ +#ifdef DISP_PARTIAL + /* Newline = newdoc.line; */ + display_partial = FALSE; /* for sure, LYNXfoo:/ may be a problem */ +#else + /* Should not be needed either if we remove "DISP_PARTIAL" from + * LYHistory.c, but lets leave it as an important comment for + * now. + */ + /* Newline = newdoc.line; */ +#endif + + /* + * If we are going to a target line or the first page of a + * popped document, override any www_search line result. + */ + if (LYGetNewline() > 1 || popped_doc == TRUE) + www_search_result = -1; + + /* + * Make sure curdoc.line will not be equal to Newline, so we + * get a redraw. + */ + curdoc.line = -1; + break; + } /* end switch */ + + if (TRACE) { + if (!LYTraceLogFP || trace_mode_flag) { + LYSleepAlert(); /* allow me to look at the results */ + } + } + + /* + * Set the files the same. + */ + copy_address(&curdoc, &newdoc); + BStrCopy(curdoc.post_data, newdoc.post_data); + StrAllocCopy(curdoc.post_content_type, newdoc.post_content_type); + StrAllocCopy(curdoc.bookmark, newdoc.bookmark); +#ifdef USE_COLOR_STYLE + StrAllocCopy(curdoc.style, HText_getStyle()); + if (curdoc.style != NULL) + style_readFromFile(curdoc.style); +#endif + curdoc.isHEAD = newdoc.isHEAD; + curdoc.internal_link = newdoc.internal_link; + + /* + * Set the remaining document elements and add to the visited links + * list. - FM + */ + if (ownerS_address != NULL) { +#ifndef USE_PRETTYSRC + if (HTOutputFormat == WWW_SOURCE && !HText_getOwner()) +#else + if ((LYpsrc ? psrc_view : HTOutputFormat == WWW_SOURCE) + && !HText_getOwner()) +#endif + HText_setMainTextOwner(ownerS_address); + FREE(ownerS_address); + } + if (HText_getTitle()) { + StrAllocCopy(curdoc.title, HText_getTitle()); + } else if (!dump_output_immediately) { + StrAllocCopy(curdoc.title, newdoc.title); + } + StrAllocCopy(owner_address, HText_getOwner()); + curdoc.safe = HTLoadedDocumentIsSafe(); + if (!dump_output_immediately) { + LYAddVisitedLink(&curdoc); + } + + /* + * Reset WWW present mode so that if we were getting the source, we + * get rendered HTML from now on. + */ + HTOutputFormat = WWW_PRESENT; +#ifdef USE_PRETTYSRC + psrc_view = FALSE; +#endif + + HTMLSetCharacterHandling(current_char_set); /* restore, for sure? */ + + /* + * Reset all of the other relevant flags. - FM + */ + LYUserSpecifiedURL = FALSE; /* only set for goto's and jumps's */ + LYJumpFileURL = FALSE; /* only set for jump's */ + LYNoRefererForThis = FALSE; /* always reset on return here */ + reloading = FALSE; /* set for RELOAD and NOCACHE keys */ + HEAD_request = FALSE; /* only set for HEAD requests */ + LYPermitURL = FALSE; /* only for LYValidate or check_realm */ + ForcePush = FALSE; /* only set for some PRINT requests. */ + LYforce_HTML_mode = FALSE; + force_old_UCLYhndl_on_reload = FALSE; + popped_doc = FALSE; + pending_form_c = -1; + + } + /* end if (LYforce_no_cache || force_load || are_different(...)) */ + if (dump_output_immediately) { + if (crawl) { + print_crawl_to_fd(stdout, curdoc.address, curdoc.title); + } else if (!dump_links_only) { + print_wwwfile_to_fd(stdout, FALSE, FALSE); + } + CleanupMainLoop(); + return ((dump_server_status >= 400) ? EXIT_FAILURE : EXIT_SUCCESS); + } + + /* + * If the recent_sizechange variable is set to TRUE then the window + * size changed recently. + */ + if (recent_sizechange) { + /* + * First we need to make sure the display library - curses, slang, + * whatever - gets notified about the change, and gets a chance to + * update external structures appropriately. Hopefully the + * stop_curses()/start_curses() sequence achieves this, at least if + * the display library has a way to get the new screen size from + * the OS. + * + * However, at least for ncurses, the update of the internal + * structures will come still too late - the changed screen size is + * detected in doupdate(), which would only be called (indirectly + * through the HText_pageDisplay below) after the WINDOW structures + * are already filled based on the old size. So we notify the + * ncurses library directly here. - kw + */ +#if defined(NCURSES) && defined(HAVE_RESIZETERM) && defined(HAVE_WRESIZE) + resizeterm(LYlines, LYcols); + wresize(LYwin, LYlines, LYcols); +#else +#if 0 /* defined(PDCURSES) && defined(HAVE_XCURSES) */ + resize_term(LYlines, LYcols); + if (LYwin != 0) + LYwin = resize_window(LYwin, LYlines, LYcols); + refresh(); +#else + stop_curses(); + start_curses(); + LYclear(); +#endif +#endif + refresh_screen = TRUE; /* to force a redraw */ + if (HTMainText) /* to REALLY force it... - kw */ + HText_setStale(HTMainText); + recent_sizechange = FALSE; + + LYSetDisplayLines(); + } + + if (www_search_result != -1) { + /* + * This was a WWW search, set the line to the result of the search. + */ + LYSetNewline(www_search_result); + www_search_result = -1; /* reset */ + } + + if (first_file == TRUE) { + /* + * We can never again have the first file. + */ + first_file = FALSE; + + /* + * Set the startrealm, and deal as best we can with preserving + * forced HTML mode for a local startfile. - FM + */ + temp = HTParse(curdoc.address, "", + PARSE_ACCESS + PARSE_HOST + PARSE_PUNCTUATION); + if (isEmpty(temp)) { + StrAllocCopy(startrealm, NO_NOTHING); + } else { + StrAllocCopy(startrealm, temp); + FREE(temp); + if (!(temp = HTParse(curdoc.address, "", + PARSE_PATH + PARSE_PUNCTUATION))) { + LYAddHtmlSep(&startrealm); + } else { + if (forced_HTML_mode && + !dump_output_immediately && + !curdoc.bookmark && + isFILE_URL(curdoc.address) && + strlen(temp) > 1) { + /* + * We forced HTML for a local startfile which is not a + * bookmark file and has a path of at least two + * letters. If it doesn't have a suffix mapped to + * text/html, we'll set the entire path (including the + * lead slash) as a "suffix" mapped to text/html to + * ensure it is always treated as an HTML source file. + * We are counting on a tail match to this full path + * for some other URL fetched during the session having + * too low a probability to worry about, but it could + * happen. - FM + */ + HTAtom *encoding; + + if (HTFileFormat(temp, &encoding, NULL) != WWW_HTML) { + HTSetSuffix(temp, STR_HTML, "8bit", 1.0); + } + } + if ((cp = strrchr(temp, '/')) != NULL) { + *(cp + 1) = '\0'; + StrAllocCat(startrealm, temp); + } + } + } + FREE(temp); + CTRACE((tfp, "Starting realm is '%s'\n\n", startrealm)); + if (traversal) { + /* + * Set up the crawl output stuff. + */ + if (curdoc.address && !lookup_link(curdoc.address)) { + if (!isLYNXIMGMAP(curdoc.address)) + crawl_ok = TRUE; + add_to_table(curdoc.address); + } + /* + * Set up the traversal_host comparison string. + */ + if (StrNCmp((curdoc.address ? curdoc.address : "NULL"), + "http", 4)) { + StrAllocCopy(traversal_host, NO_NOTHING); + } else if (check_realm) { + StrAllocCopy(traversal_host, startrealm); + } else { + temp = HTParse(curdoc.address, "", + PARSE_ACCESS + PARSE_HOST + PARSE_PUNCTUATION); + if (isEmpty(temp)) { + StrAllocCopy(traversal_host, NO_NOTHING); + } else { + StrAllocCopy(traversal_host, temp); + LYAddHtmlSep(&traversal_host); + } + FREE(temp); + } + CTRACE((tfp, "Traversal host is '%s'\n\n", traversal_host)); + } + if (startfile) { + /* + * If homepage was not equated to startfile, make the homepage + * URL the first goto entry. - FM + */ + if (homepage && strcmp(startfile, homepage)) + HTAddGotoURL(homepage); + /* + * If we are not starting up with startfile (e.g., had -book), + * or if we are using the startfile and it has no POST content, + * make the startfile URL a goto entry. - FM + */ + if (strcmp(startfile, newdoc.address) || + newdoc.post_data == NULL) + HTAddGotoURL(startfile); + } + if (TRACE) { + refresh_screen = TRUE; + if (!LYTraceLogFP || trace_mode_flag) { + LYSleepAlert(); + } + } + } +#ifdef USE_SOURCE_CACHE + /* + * If the parse settings have changed since this HText was + * generated, we need to reparse and redraw it. -dsb + * + * Should be configured to avoid shock for experienced lynx users. + * Currently enabled for cached sources only. + */ + if (HTdocument_settings_changed()) { + if (HTcan_reparse_document()) { + HTInfoMsg(gettext("Reparsing document under current settings...")); + reparse_document(); + } else { + /* + * Urk. I have no idea how to recover from a failure here. + * At a guess, I'll try reloading. -dsb + */ + /* currently disabled *** + HTUserMsg(gettext("Reparsing document under current settings...")); + cmd = LYK_RELOAD; + goto new_cmd; + */ + } + } + + if (from_source_cache) { + from_source_cache = FALSE; /* reset */ + curdoc.line = -1; /* so curdoc.line != Newline, see below */ + } +#endif + + /* + * If the curdoc.line is different than Newline then there must have + * been a change since last update. Run HText_pageDisplay() to create + * a fresh screen of text output. + * + * If we got new HTMainText go this way. All display_partial calls + * ends here for final redraw. + */ + if (curdoc.line != LYGetNewline()) { +#ifdef INACTIVE_INPUT_STYLE_VH + textinput_redrawn = FALSE; +#endif + + refresh_screen = FALSE; + + HText_pageDisplay(LYGetNewline(), prev_target->str); + +#ifdef DIRED_SUPPORT + if (lynx_edit_mode && nlinks > 0 && !HTList_isEmpty(tagged)) + showtags(tagged); +#endif /* DIRED_SUPPORT */ + + /* + * Check if there is more info below this page. + */ + more_text = HText_canScrollDown(); + + if (newdoc.link < 0) + goto_line(LYGetNewline()); + LYSetNewline(HText_getTopOfScreen() + 1); + curdoc.line = LYGetNewline(); + + if (curdoc.title == NULL) { + /* + * If we don't yet have a title, try to get it, or set to that + * for newdoc.title. - FM + */ + if (HText_getTitle()) { + StrAllocCopy(curdoc.title, HText_getTitle()); + } else { + StrAllocCopy(curdoc.title, newdoc.title); + } + } + + /* + * If the request is to highlight a link which is counted from the + * start of document, correct the link number: + */ + if (newdoc_link_is_absolute) { + newdoc_link_is_absolute = FALSE; + if (curdoc.line > 1) + newdoc.link -= HText_LinksInLines(HTMainText, 1, + curdoc.line - 1); + } + + if (arrowup) { + /* + * arrowup is set if we just came up from a page below. + */ + curdoc.link = nlinks - 1; + arrowup = FALSE; + } else { + curdoc.link = newdoc.link; + if (curdoc.link >= nlinks) { + curdoc.link = nlinks - 1; + } else if (curdoc.link < 0 && nlinks > 0) { + /* + * We may have popped a doc (possibly in local_dired) which + * didn't have any links when it was pushed, but does have + * links now (e.g., a file was created). Code below + * assumes that curdoc.link is valid and that + * (curdoc.link==-1) only occurs if (nlinks==0) is true. - + * KW + */ + curdoc.link = 0; + } + } + + show_help = FALSE; /* reset */ + newdoc.line = 1; + newdoc.link = 0; + curdoc.line = LYGetNewline(); /* set */ + } else if (newdoc.link < 0) { + newdoc.link = 0; /* ...just in case getfile set this */ + } + + /* + * Refresh the screen if necessary. + */ + if (refresh_screen) { +#if defined(FANCY_CURSES) || defined (USE_SLANG) + if (enable_scrollback) { + LYclear(); + } else { + LYerase(); + } +#else + LYclear(); +#endif /* FANCY_CURSES || USE_SLANG */ + HText_pageDisplay(LYGetNewline(), prev_target->str); + +#ifdef DIRED_SUPPORT + if (lynx_edit_mode && nlinks > 0 && !HTList_isEmpty(tagged)) + showtags(tagged); +#endif /* DIRED_SUPPORT */ + + /* + * Check if there is more info below this page. + */ + more_text = HText_canScrollDown(); + + /* + * Adjust curdoc.link as above; nlinks may have changed, if the + * refresh_screen flag was set as a result of a size change. Code + * below assumes that curdoc.link is valid and that + * (curdoc.link==-1) only occurs if (nlinks==0) is true. - kw + */ + if (curdoc.link >= nlinks) { + curdoc.link = nlinks - 1; + } else if (curdoc.link < 0 && nlinks > 0) { + curdoc.link = 0; + } + + if (user_mode == NOVICE_MODE) + noviceline(more_text); /* print help message */ + refresh_screen = FALSE; + + } + + curlink_is_editable = (BOOLEAN) + (nlinks > 0 && + LinkIsTextLike(curdoc.link)); + + use_last_tfpos = (BOOLEAN) + (curlink_is_editable && + (real_cmd == LYK_LPOS_PREV_LINK || + real_cmd == LYK_LPOS_NEXT_LINK)); + +#ifdef TEXTFIELDS_MAY_NEED_ACTIVATION + if (!textfields_need_activation) + textinput_activated = TRUE; +#endif + +#if defined(WIN_EX) /* 1997/10/08 (Wed) 14:52:06 */ + if (nlinks > 0) { + char *p = "LYNX (unknown link type)"; + + /* Show the URL & kanji code . */ + if (strlen(links[curdoc.link].lname) == 0) { + + if (links[curdoc.link].type == WWW_FORM_LINK_TYPE) { + + switch (links[curdoc.link].l_form->type) { + case F_TEXT_SUBMIT_TYPE: + case F_SUBMIT_TYPE: + case F_IMAGE_SUBMIT_TYPE: + p = "[SUBMIT]"; + break; + case F_PASSWORD_TYPE: + p = "Password"; + break; + case F_OPTION_LIST_TYPE: + p = "Option list"; + break; + case F_CHECKBOX_TYPE: + p = "Check box"; + break; + case F_RADIO_TYPE: + p = "[Radio]"; + break; + case F_RESET_TYPE: + p = "[Reset]"; + break; + case F_TEXT_TYPE: + p = "Text input"; + break; + case F_TEXTAREA_TYPE: + p = "Text input lines"; + break; + default: + break; + } + set_ws_title(p); + } + } else { + if (user_mode == ADVANCED_MODE || user_mode == MINIMAL_MODE) { + p = curdoc.title; + } else { + p = links[curdoc.link].lname; + } + + if (strlen(p) < ((sizeof(sjis_buff) / 2) - 1)) { + strcpy(temp_buff, p); + if (StrChr(temp_buff, '%')) { + HTUnEscape(temp_buff); + } + str_sjis(sjis_buff, temp_buff); + set_ws_title(LYElideString(sjis_buff, 10)); + } + } + } else { + if (strlen(curdoc.address) < sizeof(temp_buff) - 1) { + if (user_mode == ADVANCED_MODE || user_mode == MINIMAL_MODE) { + str_sjis(temp_buff, curdoc.title); + } else { + strcpy(temp_buff, curdoc.address); + } + set_ws_title(HTUnEscape(temp_buff)); + } + } +#endif /* WIN_EX */ + + /* + * Report unread or new mail, if appropriate. + */ + if (check_mail && !no_mail) + LYCheckMail(); + + /* + * If help is not on the screen, then put a message on the screen to + * tell the user other misc info. + */ + if (!show_help) { + show_main_statusline(links[curdoc.link], + ((curlink_is_editable && + textinput_activated) + ? FOR_INPUT + : FOR_PANEL)); + } else { + show_help = FALSE; + } + + if (nlinks > 0) { + /* + * Highlight current link, unless it is an active text input field. + */ + if (!curlink_is_editable) { + LYhighlight(TRUE, curdoc.link, prev_target->str); +#ifndef INACTIVE_INPUT_STYLE_VH + } else if (!textinput_activated) { + LYhighlight(TRUE, curdoc.link, prev_target->str); +#endif + } + } + + if (traversal) { + /* + * Don't go interactively into forms, or accept keystrokes from the + * user + */ + if (crawl && crawl_ok) { + crawl_ok = FALSE; +#ifdef FNAMES_8_3 + sprintf(cfile, "lnk%05d.dat", crawl_count); +#else + sprintf(cfile, "lnk%08d.dat", crawl_count); +#endif /* FNAMES_8_3 */ + crawl_count = crawl_count + 1; + if ((cfp = LYNewTxtFile(cfile)) != NULL) { + print_crawl_to_fd(cfp, curdoc.address, curdoc.title); + LYCloseOutput(cfp); + } else { +#ifdef UNIX + FILE *fp = (dump_output_immediately + ? stderr + : stdout); + +#else + FILE *fp = stdout; +#endif + if (!dump_output_immediately) + cleanup(); + fprintf(fp, + gettext("Fatal error - could not open output file %s\n"), + cfile); + CleanupMainLoop(); + if (!dump_output_immediately) { + exit_immediately(EXIT_FAILURE); + } + return (EXIT_FAILURE); + } + } + } else { + /* + * Normal, non-traversal handling. + */ + if (curlink_is_editable && + (textinput_activated || pending_form_c != -1)) { + if (pending_form_c != -1) { + real_c = pending_form_c; + pending_form_c = -1; + } else { + /* + * Replace novice lines if in NOVICE_MODE. + */ + if (user_mode == NOVICE_MODE) { + form_noviceline(FormIsReadonly(links[curdoc.link].l_form)); + } + real_c = change_form_link(curdoc.link, + &newdoc, &refresh_screen, + use_last_tfpos, FALSE); + } +#ifdef TEXTFIELDS_MAY_NEED_ACTIVATION + if (textfields_need_activation) + textinput_activated = FALSE; +#ifdef INACTIVE_INPUT_STYLE_VH + textinput_redrawn = FALSE; +#endif +#endif + + c = (real_c == LKC_DONE) ? DO_NOTHING : LKC_TO_C(real_c); + if (c != DO_NOTHING && + peek_mouse_link() != -1 && peek_mouse_link() != -2) + old_c = 0; + if (peek_mouse_link() >= 0 && + LKC_TO_LAC(keymap, real_c) != LYK_CHANGE_LINK) { + do_change_link(); + if ((c == '\n' || c == '\r') && + LinkIsTextLike(curdoc.link) && + !textfields_need_activation) { + c = DO_NOTHING; + } +#ifdef TEXTFIELDS_MAY_NEED_ACTIVATION + } else if (LinkIsTextarea(curdoc.link) + && textfields_need_activation + && !FormIsReadonly(links[curdoc.link].l_form) + && peek_mouse_link() < 0 && + (((LKC_TO_LAC(keymap, real_c) == LYK_NEXT_LINK || +#ifdef TEXTAREA_AUTOGROW + LKC_TO_LAC(keymap, real_c) == LYK_ACTIVATE || +#endif + LKC_TO_LAC(keymap, real_c) == LYK_LPOS_NEXT_LINK || + LKC_TO_LAC(keymap, real_c) == LYK_DOWN_LINK) && + ((curdoc.link < nlinks - 1 && + LinkIsTextarea(curdoc.link + 1) + && (links[curdoc.link].l_form->number == + links[curdoc.link + 1].l_form->number) + && strcmp(links[curdoc.link].l_form->name, + links[curdoc.link + 1].l_form->name) + == 0) || + (curdoc.link == nlinks - 1 && more_text && + HText_TAHasMoreLines(curdoc.link, 1)))) || + ((LKC_TO_LAC(keymap, real_c) == LYK_PREV_LINK || + LKC_TO_LAC(keymap, real_c) == LYK_LPOS_PREV_LINK || + LKC_TO_LAC(keymap, real_c) == LYK_UP_LINK) && + ((curdoc.link > 0 && + LinkIsTextarea(curdoc.link - 1) + && (links[curdoc.link].l_form->number == + links[curdoc.link - 1].l_form->number) && + strcmp(links[curdoc.link].l_form->name, + links[curdoc.link - 1].l_form->name) == 0) + || (curdoc.link == 0 && curdoc.line > 1 && + HText_TAHasMoreLines(curdoc.link, -1)))))) { + textinput_activated = TRUE; +#ifdef TEXTAREA_AUTOGROW + if ((c == '\n' || c == '\r') && + LKC_TO_LAC(keymap, real_c) == LYK_ACTIVATE) + c = LAC_TO_LKC0(LYK_NEXT_LINK); +#endif /* TEXTAREA_AUTOGROW */ +#endif /* TEXTFIELDS_MAY_NEED_ACTIVATION */ + } else + switch (c) { + case '\n': + case '\r': +#ifdef TEXTAREA_AUTOGROW + /* + * If on the bottom line of a TEXTAREA, and the user + * hit the ENTER key, we add a new line/anchor + * automatically, positioning the cursor on it. + * + * If at the bottom of the screen, we effectively + * perform an LYK_DOWN_HALF-like operation, then move + * down to the new line we just added. --KED 02/14/99 + * + * [There is some redundancy and non-standard + * indentation in the monster-if() below. This is + * intentional ... to try and improve the + * "readability" (such as it is). Caveat emptor to + * anyone trying to change it.] + */ + if (LinkIsTextarea(curdoc.link) + && ((curdoc.link == nlinks - 1 && + !(more_text && + HText_TAHasMoreLines(curdoc.link, 1))) + || + ((curdoc.link < nlinks - 1) && + !LinkIsTextarea(curdoc.link + 1)) + || + ((curdoc.link < nlinks - 1) && + (LinkIsTextarea(curdoc.link + 1) + && ((links[curdoc.link].l_form->number != + links[curdoc.link + 1].l_form->number) || + (strcmp(links[curdoc.link].l_form->name, + links[curdoc.link + 1].l_form->name) + != 0)))))) { + + HText_ExpandTextarea(&links[curdoc.link], 1); + + if (links[curdoc.link].ly < display_lines) { + refresh_screen = TRUE; + } else { + LYChgNewline(display_lines / 2); + if (nlinks > 0 && curdoc.link > -1 && + links[curdoc.link].ly > display_lines / 2) { + newdoc.link = curdoc.link; + for (i = 0; + links[i].ly <= (display_lines / 2); + i++) + --newdoc.link; + newdoc.link++; + } + } +#ifdef TEXTFIELDS_MAY_NEED_ACTIVATION + if (textfields_need_activation) { + textinput_activated = TRUE; + textfields_need_activation = textfields_activation_option; +#ifdef INACTIVE_INPUT_STYLE_VH + textinput_redrawn = TRUE; +#endif + }; +#endif + + } +#endif /* TEXTAREA_AUTOGROW */ + + /* + * Make return in input field (if it was returned by + * change_form_link) act as LYK_NEXT_LINK, independent + * of what key (if any) is mapped to LYK_NEXT_LINK. - + * kw + */ + c = LAC_TO_LKC0(LYK_NEXT_LINK); + break; + default: + + if (old_c != c && old_c != real_c && c != real_c) + real_c = c; + } + } else { +#if defined(TEXTFIELDS_MAY_NEED_ACTIVATION) && defined(INACTIVE_INPUT_STYLE_VH) + if (curlink_is_editable && !textinput_redrawn) { + /*draw the text entry, but don't activate it */ + textinput_redrawn = TRUE; + change_form_link_ex(curdoc.link, + &newdoc, &refresh_screen, + use_last_tfpos, FALSE, TRUE); + if (LYShowCursor) { + LYmove(links[curdoc.link].ly, + ((links[curdoc.link].lx > 0) ? + (links[curdoc.link].lx - 1) : 0)); + } else { + LYHideCursor(); + } + } +#endif /* TEXTFIELDS_MAY_NEED_ACTIVATION && INACTIVE_INPUT_STYLE_VH */ + /* + * Get a keystroke from the user. Save the last keystroke to + * avoid redundant error reporting. + */ + real_c = c = LYgetch(); /* get user input */ + + if (c != last_key) + key_count = 0; + key_count++; + last_key = c; +#ifndef VMS + if (c == 3) { /* ^C */ + /* + * This shouldn't happen. We'll try to deal with whatever + * bug caused it. - FM + */ + signal(SIGINT, cleanup_sig); + old_c = 0; + cmd = LYK_QUIT; + goto new_cmd; + } +#endif /* !VMS */ + if (LKC_HAS_ESC_MOD(c) && EditBinding(c) != LYE_FORM_PASS) { + /* + * If ESC + <key> was read (and not recognized as a + * terminal escape sequence for another key), ignore the + * ESC modifier and act on <key> only if the line editor + * binding would have passed the same ESC-modified + * lynxkeycode back to us if it had been pressed in a text + * input field. Otherwise set interesting part so that it + * will map to 0, to prevent that ESC + <key> acts like + * <key>, which might be unexpected. - kw + */ + c = (c & ~LKC_MASK) | LAC_TO_LKC(0); + } + if (old_c != real_c) { + old_c = 0; + } + } + } + +#ifdef VMS + if (HadVMSInterrupt) { + HadVMSInterrupt = FALSE; + c = DO_NOTHING; + } +#else + if (recent_sizechange) { + if (c <= 0) + c = DO_NOTHING; + } +#endif /* VMS */ + + new_keyboard_input: + /* + * A goto point for new input without going back through the getch() + * loop. + */ + if (traversal) { + if ((c = DoTraversal(c, &crawl_ok)) < 0) { + CleanupMainLoop(); + return (EXIT_FAILURE); + } + } + /* traversal */ +#ifdef WIN_EX + if (c == DO_NOTHING) + cmd = LYK_DO_NOTHING; + else +#endif + cmd = LKC_TO_LAC(keymap, c); /* adds 1 to map EOF to 0 */ + +#if defined(DIRED_SUPPORT) && defined(OK_OVERRIDE) + if (lynx_edit_mode && !no_dired_support && LKC_TO_LAC(key_override, c)) + cmd = LKC_TO_LAC(key_override, c); +#endif /* DIRED_SUPPORT && OK_OVERRIDE */ + + real_cmd = cmd; + + /* + * A goto point for new input without going back through the getch() + * loop. + */ + new_cmd: + + force_old_UCLYhndl_on_reload = FALSE; + CTRACE_FLUSH(tfp); + + if (cmd != LYK_UP_LINK && cmd != LYK_DOWN_LINK) + follow_col = -1; + + CTRACE((tfp, "Handling key as %s\n", + ((LYKeycodeToKcmd((LYKeymapCode) cmd) != 0) + ? LYKeycodeToKcmd((LYKeymapCode) cmd)->name + : "unknown"))); + switch (cmd) { + case -1: + HTUserMsg(COMMAND_UNKNOWN); + break; + case 0: /* unmapped character */ + default: + if (curdoc.link >= 0 && curdoc.link < nlinks && + LinkIsTextLike(curdoc.link)) { + +#ifdef TEXTFIELDS_MAY_NEED_ACTIVATION + if (textfields_need_activation) { + show_main_statusline(links[curdoc.link], FOR_PANEL); +#ifdef INACTIVE_INPUT_STYLE_VH + textinput_redrawn = FALSE; +#endif + } else +#endif + show_main_statusline(links[curdoc.link], FOR_INPUT); + } else if (more_text) { + HTInfoMsg(MOREHELP); + } else { + HTInfoMsg(HELP); + } + show_help = TRUE; + + if (TRACE) { + sprintf(cfile, "%d", c); + LYaddstr(cfile); /* show the user input */ + cfile[0] = '\0'; + } + break; + + case LYK_COMMAND: + cmd = handle_LYK_COMMAND(&user_input_buffer); + goto new_cmd; + + case LYK_INTERRUPT: + /* + * No network transmission to interrupt - 'til we multithread. + */ + break; + + case LYK_F_LINK_NUM: + c = '\0'; + /* FALLTHRU */ + case LYK_1: /* FALLTHRU */ + case LYK_2: /* FALLTHRU */ + case LYK_3: /* FALLTHRU */ + case LYK_4: /* FALLTHRU */ + case LYK_5: /* FALLTHRU */ + case LYK_6: /* FALLTHRU */ + case LYK_7: /* FALLTHRU */ + case LYK_8: /* FALLTHRU */ + case LYK_9: + handle_LYK_digit(c, &force_load, &old_c, real_c, &try_internal); + break; + + case LYK_SOURCE: /* toggle view source mode */ + handle_LYK_SOURCE(&ownerS_address); + break; + + case LYK_CHANGE_CENTER: /* ^Q */ + + if (no_table_center) { + no_table_center = FALSE; + HTInfoMsg(gettext("TABLE center enable.")); + } else { + no_table_center = TRUE; + HTInfoMsg(gettext("TABLE center disable.")); + } + /* FALLTHRU */ + + case LYK_RELOAD: /* control-R to reload and refresh */ + handle_LYK_RELOAD(real_cmd); + break; + + case LYK_HISTORICAL: /* toggle 'historical' comments parsing */ + handle_LYK_HISTORICAL(); + break; + + case LYK_MINIMAL: /* toggle 'minimal' comments parsing */ + handle_LYK_MINIMAL(); + break; + + case LYK_SOFT_DQUOTES: + handle_LYK_SOFT_DQUOTES(); + break; + + case LYK_SWITCH_DTD: + handle_LYK_SWITCH_DTD(); + break; + + case LYK_QUIT: /* quit */ + if (handle_LYK_QUIT()) { + CleanupMainLoop(); + return (EXIT_SUCCESS); + } + break; + + case LYK_ABORT: /* don't ask the user about quitting */ + CleanupMainLoop(); + return (EXIT_SUCCESS); + + case LYK_NEXT_PAGE: /* next page */ + handle_LYK_NEXT_PAGE(&old_c, real_c); + break; + + case LYK_PREV_PAGE: /* page up */ + handle_LYK_PREV_PAGE(&old_c, real_c); + break; + + case LYK_UP_TWO: + handle_LYK_UP_TWO(&arrowup, &old_c, real_c); + break; + + case LYK_DOWN_TWO: + handle_LYK_DOWN_TWO(&old_c, real_c); + break; + + case LYK_UP_HALF: + handle_LYK_UP_HALF(&arrowup, &old_c, real_c); + break; + + case LYK_DOWN_HALF: + handle_LYK_DOWN_HALF(&old_c, real_c); + break; + +#ifdef CAN_CUT_AND_PASTE + case LYK_TO_CLIPBOARD: /* ^S */ + { + char *s; + int ch2; + + /* The logic resembles one of ADD_BOOKMARK */ + if (nlinks > 0 && links[curdoc.link].lname + && links[curdoc.link].type != WWW_FORM_LINK_TYPE) { + /* Makes sense to copy a link */ + _statusline("Copy D)ocument's or L)ink's URL to clipboard or C)ancel?"); + ch2 = LYgetch_single(); + if (ch2 == 'D') + s = curdoc.address; + else if (ch2 == 'C') + break; + else + s = links[curdoc.link].lname; + } else + s = curdoc.address; + if (isEmpty(s)) + HTInfoMsg(gettext("Current URL is empty.")); + if (put_clip(s)) + HTInfoMsg(gettext("Copy to clipboard failed.")); + else if (s == curdoc.address) + HTInfoMsg(gettext("Document URL put to clipboard.")); + else + HTInfoMsg(gettext("Link URL put to clipboard.")); + } + break; + + case LYK_PASTE_URL: + if (no_goto && !LYValidate) { /* Go to not allowed. - FM */ + HTUserMsg(GOTO_DISALLOWED); + } else { + unsigned char *s = (unsigned char *) get_clip_grab(), *e, *t; + char *buf; + int len2; + + if (!s) + break; + len2 = (int) strlen((const char *) s); + e = s + len2; + while (s < e && StrChr(" \t\n\r", *s)) + s++; + while (s < e && StrChr(" \t\n\r", e[-1])) + e--; + if (s[0] == '<' && e > s && e[-1] == '>') { + s++; + e--; + if (!strncasecomp((const char *) s, "URL:", 4)) + s += 4; + } + if (s >= e) { + HTInfoMsg(gettext("No URL in the clipboard.")); + break; + } + len = (unsigned) (e - s + 1); + if (len < MAX_LINE) + len = MAX_LINE; /* Required for do_check_goto_URL() */ + buf = typeMallocn(char, len); + + LYStrNCpy(buf, (const char *) s, (e - s)); + t = (unsigned char *) buf; + + while (s < e) { + if (StrChr(" \t\n\r", *s)) { + int nl2 = 0; /* Keep whitespace without NL - file names! */ + unsigned char *s1 = s; + + while (StrChr(" \t\n\r", *s)) { + if (!nl2 && *s == '\n') + nl2 = 1; + s++; + } + if (!nl2) { + while (s1 < s) { + if (*s1 != '\r' && *s1 != '\n') + *t = *s1; + t++, s1++; + } + } + } else + *t++ = *s++; + } + *t = '\0'; + get_clip_release(); + BStrCopy0(user_input_buffer, buf); + do_check_goto_URL(&user_input_buffer, &temp, &force_load); + free(buf); + } + break; +#endif + +#ifdef KANJI_CODE_OVERRIDE + case LYK_CHG_KCODE: + if (LYRawMode && (HTCJK == JAPANESE)) { + switch (last_kcode) { + case NOKANJI: + last_kcode = SJIS; + break; + case SJIS: + last_kcode = EUC; + break; + case EUC: + last_kcode = NOKANJI; + break; + default: + break; + } + } + LYmove(0, 0); + lynx_start_title_color(); + LYaddstr(str_kcode(last_kcode)); + lynx_stop_title_color(); + + break; +#endif + + case LYK_REFRESH: + refresh_screen = TRUE; + lynx_force_repaint(); + break; + + case LYK_HOME: + if (curdoc.line > 1) { + LYSetNewline(1); + } else { + cmd = LYK_PREV_PAGE; + goto new_cmd; + } + break; + + case LYK_END: + i = HText_getNumOfLines() - display_lines + 2; + if (i >= 1 && LYGetNewline() != i) { + LYSetNewline(i); /* go to end of file */ + arrowup = TRUE; /* position on last link */ + } else { + cmd = LYK_NEXT_PAGE; + goto new_cmd; + } + break; + + case LYK_FIRST_LINK: + handle_LYK_FIRST_LINK(); + break; + + case LYK_LAST_LINK: + handle_LYK_LAST_LINK(); + break; + + case LYK_PREV_LINK: + case LYK_LPOS_PREV_LINK: + handle_LYK_PREV_LINK(&arrowup, &old_c, real_c); + break; + + case LYK_NEXT_LINK: + case LYK_LPOS_NEXT_LINK: + handle_LYK_NEXT_LINK(c, &old_c, real_c); + break; + + case LYK_FASTFORW_LINK: + handle_LYK_FASTFORW_LINK(&old_c, real_c); + break; + + case LYK_FASTBACKW_LINK: + if (handle_LYK_FASTBACKW_LINK(&cmd, &old_c, real_c)) + goto new_cmd; + break; + + case LYK_UP_LINK: + handle_LYK_UP_LINK(&follow_col, &arrowup, &old_c, real_c); + break; + + case LYK_DOWN_LINK: + handle_LYK_DOWN_LINK(&follow_col, &old_c, real_c); + break; + + case LYK_CHANGE_LINK: + do_change_link(); +#if defined(TEXTFIELDS_MAY_NEED_ACTIVATION) && defined(INACTIVE_INPUT_STYLE_VH) + if (textfields_need_activation) + textinput_redrawn = FALSE; +#endif /* TEXTFIELDS_MAY_NEED_ACTIVATION && INACTIVE_INPUT_STYLE_VH */ + break; + + case LYK_RIGHT_LINK: + handle_LYK_RIGHT_LINK(); + break; + + case LYK_LEFT_LINK: + handle_LYK_LEFT_LINK(); + break; + + case LYK_COOKIE_JAR: /* show the cookie jar */ + if (handle_LYK_COOKIE_JAR(&cmd)) + goto new_cmd; + break; + +#ifdef USE_CACHEJAR + case LYK_CACHE_JAR: /* show the cache jar */ + if (handle_LYK_CACHE_JAR(&cmd)) + goto new_cmd; + break; +#endif + + case LYK_HISTORY: /* show the history page */ + if (handle_LYK_HISTORY(ForcePush)) + break; + + /* FALLTHRU */ + case LYK_PREV_DOC: /* back up a level */ + switch (handle_PREV_DOC(&cmd, &old_c, real_c)) { + case 1: + CleanupMainLoop(); + return (EXIT_SUCCESS); + case 2: + goto new_cmd; + } + break; + + case LYK_NEXT_DOC: /* undo back up a level */ + handle_NEXT_DOC(); + break; + + case LYK_NOCACHE: /* Force submission of form or link with no-cache */ + if (!handle_LYK_NOCACHE(&old_c, real_c)) + break; + + /* FALLTHRU */ + case LYK_ACTIVATE: /* follow a link */ + case LYK_MOUSE_SUBMIT: /* follow a link, submit TEXT_SUBMIT input */ + switch (handle_LYK_ACTIVATE(&c, + cmd, + &try_internal, + &refresh_screen, + &force_load, + real_cmd)) { + case 1: + continue; + case 2: + goto new_keyboard_input; + case 3: + pending_form_c = c; + break; + } + break; + + case LYK_SUBMIT: + handle_LYK_SUBMIT(curdoc.link, &newdoc, &refresh_screen); + break; + + case LYK_RESET: + handle_LYK_RESET(curdoc.link, &refresh_screen); + break; + + case LYK_ELGOTO: /* edit URL of current link and go to it */ + if (handle_LYK_ELGOTO(&ch, &user_input_buffer, &temp, &old_c, real_c)) + do_check_goto_URL(&user_input_buffer, &temp, &force_load); + break; + + case LYK_ECGOTO: /* edit current URL and go to to it */ + if (handle_LYK_ECGOTO(&ch, &user_input_buffer, &temp, &old_c, real_c)) + do_check_goto_URL(&user_input_buffer, &temp, &force_load); + break; + + case LYK_GOTO: /* 'g' to goto a random URL */ + if (handle_LYK_GOTO(&ch, &user_input_buffer, &temp, &recall, + &URLTotal, &URLNum, &FirstURLRecall, &old_c, + real_c)) { + if (do_check_recall(ch, &user_input_buffer, &temp, URLTotal, + &URLNum, recall, &FirstURLRecall)) + do_check_goto_URL(&user_input_buffer, &temp, &force_load); + } + break; + + case LYK_DWIMHELP: /* show context-dependent help file */ + handle_LYK_DWIMHELP(&cshelpfile); + /* FALLTHRU */ + + case LYK_HELP: /* show help file */ + handle_LYK_HELP(&cshelpfile); + break; + + case LYK_INDEX: /* index file */ + handle_LYK_INDEX(&old_c, real_c); + break; + + case LYK_MAIN_MENU: /* return to main screen */ + handle_LYK_MAIN_MENU(&old_c, real_c); + break; + +#ifdef EXP_NESTED_TABLES + case LYK_NESTED_TABLES: + if (handle_LYK_NESTED_TABLES(&cmd)) + goto new_cmd; + break; +#endif + case LYK_OPTIONS: /* options screen */ + if (handle_LYK_OPTIONS(&cmd, &refresh_screen)) + goto new_cmd; + break; + + case LYK_INDEX_SEARCH: /* search for a user string */ + handle_LYK_INDEX_SEARCH(&force_load, ForcePush, &old_c, real_c); + break; + + case LYK_WHEREIS: /* search within the document */ + case LYK_NEXT: /* find the next occurrence in the document */ + case LYK_PREV: /* find the previous occurrence in the document */ + handle_LYK_WHEREIS(cmd, &refresh_screen); + break; + + case LYK_COMMENT: /* reply by mail */ + handle_LYK_COMMENT(&refresh_screen, &owner_address, &old_c, real_c); + break; + +#ifdef DIRED_SUPPORT + case LYK_TAG_LINK: /* tag or untag the current link */ + handle_LYK_TAG_LINK(); + break; + + case LYK_MODIFY: /* rename a file or directory */ + handle_LYK_MODIFY(&refresh_screen); + break; + + case LYK_CREATE: /* create a new file or directory */ + handle_LYK_CREATE(); + break; +#endif /* DIRED_SUPPORT */ + + case LYK_DWIMEDIT: /* context-dependent edit */ + switch (handle_LYK_DWIMEDIT(&cmd, &old_c, real_c)) { + case 1: + continue; + case 2: + goto new_cmd; + } + /* FALLTHRU */ + + case LYK_EDIT: /* edit */ + handle_LYK_EDIT(&old_c, real_c); + break; + + case LYK_DEL_BOOKMARK: /* remove a bookmark file link */ + handle_LYK_DEL_BOOKMARK(&refresh_screen, &old_c, real_c); + break; + +#ifdef DIRED_SUPPORT + case LYK_REMOVE: /* remove files and directories */ + handle_LYK_REMOVE(&refresh_screen); + break; +#endif /* DIRED_SUPPORT */ + +#if defined(DIRED_SUPPORT) && defined(OK_INSTALL) + case LYK_INSTALL: /* install a file into system area */ + handle_LYK_INSTALL(); + break; +#endif /* DIRED_SUPPORT && OK_INSTALL */ + + case LYK_INFO: /* show document info */ + if (handle_LYK_INFO(&cmd)) + goto new_cmd; + break; + + case LYK_EDITTEXTAREA: /* use external editor on a TEXTAREA - KED */ + handle_LYK_EDIT_TEXTAREA(&refresh_screen, &old_c, real_c); + break; + + case LYK_GROWTEXTAREA: /* add new lines to bottom of TEXTAREA - KED */ + handle_LYK_GROW_TEXTAREA(&refresh_screen); + break; + + case LYK_INSERTFILE: /* insert file in TEXTAREA, above cursor - KED */ + handle_LYK_INSERT_FILE(&refresh_screen, &old_c, real_c); + break; + + case LYK_PRINT: /* print the file */ + handle_LYK_PRINT(&ForcePush, &old_c, real_c); + break; + + case LYK_LIST: /* list links in the current document */ + if (handle_LYK_LIST(&cmd)) + goto new_cmd; + break; + +#ifdef USE_ADDRLIST_PAGE + case LYK_ADDRLIST: /* always list URL's (only) */ + if (handle_LYK_ADDRLIST(&cmd)) + goto new_cmd; + break; +#endif /* USE_ADDRLIST_PAGE */ + + case LYK_VLINKS: /* list links visited during the current session */ + if (handle_LYK_VLINKS(&cmd, &newdoc_link_is_absolute)) + goto new_cmd; + break; + + case LYK_TOOLBAR: /* go to Toolbar or Banner in current document */ + handle_LYK_TOOLBAR(&try_internal, &force_load, &old_c, real_c); + break; + +#if defined(DIRED_SUPPORT) || defined(VMS) + case LYK_DIRED_MENU: /* provide full file management menu */ + handle_LYK_DIRED_MENU(&refresh_screen, &old_c, real_c); + break; +#endif /* DIRED_SUPPORT || VMS */ + +#ifdef USE_EXTERNALS + case LYK_EXTERN_LINK: /* use external program on url */ + handle_LYK_EXTERN_LINK(&refresh_screen); + break; + case LYK_EXTERN_PAGE: /* use external program on current page */ + handle_LYK_EXTERN_PAGE(&refresh_screen); + break; +#endif /* USE_EXTERNALS */ + + case LYK_ADD_BOOKMARK: /* add link to bookmark file */ + handle_LYK_ADD_BOOKMARK(&refresh_screen, &old_c, real_c); + break; + + case LYK_VIEW_BOOKMARK: /* v to view home page */ + handle_LYK_VIEW_BOOKMARK(&refresh_screen, &old_c, real_c); + break; + + case LYK_SHELL: /* (!) shell escape */ + handle_LYK_SHELL(&refresh_screen, &old_c, real_c); + break; + + case LYK_DOWNLOAD: + switch (handle_LYK_DOWNLOAD(&cmd, &old_c, real_c)) { + case 1: + continue; + case 2: + goto new_cmd; + } + break; + +#ifdef DIRED_SUPPORT + case LYK_UPLOAD: + handle_LYK_UPLOAD(); + break; +#endif /* DIRED_SUPPORT */ + + case LYK_TRACE_TOGGLE: /* Toggle TRACE mode. */ + handle_LYK_TRACE_TOGGLE(); + break; + + case LYK_TRACE_LOG: /* View TRACE log. */ + handle_LYK_TRACE_LOG(&trace_mode_flag); + break; + + case LYK_IMAGE_TOGGLE: + if (handle_LYK_IMAGE_TOGGLE(&cmd)) + goto new_cmd; + break; + + case LYK_INLINE_TOGGLE: + if (handle_LYK_INLINE_TOGGLE(&cmd)) + goto new_cmd; + break; + + case LYK_RAW_TOGGLE: + if (handle_LYK_RAW_TOGGLE(&cmd)) + goto new_cmd; + break; + + case LYK_HEAD: + if (handle_LYK_HEAD(&cmd)) + goto new_cmd; + break; + + case LYK_TOGGLE_HELP: + handle_LYK_TOGGLE_HELP(); + break; + + case LYK_EDITMAP: + handle_LYK_EDITMAP(&old_c, real_c); + break; + + case LYK_KEYMAP: + handle_LYK_KEYMAP(&vi_keys_flag, &emacs_keys_flag, &old_c, real_c); + break; + + case LYK_JUMP: + if (handle_LYK_JUMP(c, &user_input_buffer, &temp, &recall, + &FirstURLRecall, &URLNum, &URLTotal, &ch, + &old_c, real_c)) { + if (do_check_recall(ch, &user_input_buffer, &temp, URLTotal, + &URLNum, recall, &FirstURLRecall)) + do_check_goto_URL(&user_input_buffer, &temp, &force_load); + } + break; + + case LYK_CLEAR_AUTH: + handle_LYK_CLEAR_AUTH(&old_c, real_c); + break; + + case LYK_DO_NOTHING: /* pretty self explanatory */ + break; +#ifdef SUPPORT_CHDIR + case LYK_CHDIR: + handle_LYK_CHDIR(); + break; + case LYK_PWD: + handle_LYK_PWD(); + break; +#endif +#ifdef USE_CURSES_PADS + case LYK_SHIFT_LEFT: + handle_LYK_SHIFT_LEFT(&refresh_screen, key_count); + break; + case LYK_SHIFT_RIGHT: + handle_LYK_SHIFT_RIGHT(&refresh_screen, key_count); + break; + case LYK_LINEWRAP_TOGGLE: + if (handle_LYK_LINEWRAP_TOGGLE(&cmd, &refresh_screen)) + goto new_cmd; + break; +#endif + +#ifdef USE_MAXSCREEN_TOGGLE + case LYK_MAXSCREEN_TOGGLE: + if (handle_LYK_MAXSCREEN_TOGGLE(&cmd)) + goto new_cmd; + break; +#endif + } /* end of BIG switch */ + } +} + +static int are_different(DocInfo *doc1, DocInfo *doc2) +{ + char *cp1, *cp2; + + /* + * Do we have two addresses? + */ + if (!doc1->address || !doc2->address) + return (TRUE); + + /* + * Do they differ in the type of request? + */ + if (doc1->isHEAD != doc2->isHEAD) + return (TRUE); + + /* + * See if the addresses are different, making sure we're not tripped up by + * multiple anchors in the the same document from a POST form. -- FM + */ + cp1 = trimPoundSelector(doc1->address); + cp2 = trimPoundSelector(doc2->address); + /* + * Are the base addresses different? + */ + if (strcmp(doc1->address, doc2->address)) { + restorePoundSelector(cp1); + restorePoundSelector(cp2); + return (TRUE); + } + restorePoundSelector(cp1); + restorePoundSelector(cp2); + + /* + * Do the docs have different contents? + */ + if (doc1->post_data) { + if (doc2->post_data) { + if (!BINEQ(doc1->post_data, doc2->post_data)) + return (TRUE); + } else + return (TRUE); + } else if (doc2->post_data) + return (TRUE); + + /* + * We'll assume the two documents in fact are the same. + */ + return (FALSE); +} + +/* This determines whether two docs are _physically_ different, + * meaning they are "from different files". - kw + */ +static int are_phys_different(DocInfo *doc1, DocInfo *doc2) +{ + char *cp1, *cp2, *ap1 = doc1->address, *ap2 = doc2->address; + + /* + * Do we have two addresses? + */ + if (!doc1->address || !doc2->address) + return (TRUE); + + /* + * Do they differ in the type of request? + */ + if (doc1->isHEAD != doc2->isHEAD) + return (TRUE); + + /* + * Skip over possible LYNXIMGMAP parts. - kw + */ + if (isLYNXIMGMAP(doc1->address)) + ap1 += LEN_LYNXIMGMAP; + if (isLYNXIMGMAP(doc2->address)) + ap2 += LEN_LYNXIMGMAP; + /* + * If there isn't any real URL in doc2->address, but maybe just + * a fragment, doc2 is assumed to be an internal reference in + * the same physical document, so return FALSE. - kw + */ + if (*ap2 == '\0' || *ap2 == '#') + return (FALSE); + + /* + * See if the addresses are different, making sure we're not tripped up by + * multiple anchors in the the same document from a POST form. -- FM + */ + cp1 = trimPoundSelector(doc1->address); + cp2 = trimPoundSelector(doc2->address); + /* + * Are the base addresses different? + */ + if (strcmp(ap1, ap2)) { + restorePoundSelector(cp1); + restorePoundSelector(cp2); + return (TRUE); + } + restorePoundSelector(cp1); + restorePoundSelector(cp2); + + /* + * Do the docs have different contents? + */ + if (doc1->post_data) { + if (doc2->post_data) { + if (!BINEQ(doc1->post_data, doc2->post_data)) + return (TRUE); + } else + return (TRUE); + } else if (doc2->post_data) + return (TRUE); + + /* + * We'll assume the two documents in fact are the same. + */ + return (FALSE); +} + +/* + * Utility for freeing the list of goto URLs. - FM + */ +#ifdef LY_FIND_LEAKS +static void HTGotoURLs_free(void) +{ + LYFreeStringList(Goto_URLs); + Goto_URLs = NULL; +} +#endif + +/* + * Utility for listing Goto URLs, making any repeated URLs the most current in + * the list. - FM + */ +void HTAddGotoURL(char *url) +{ + char *mycopy = NULL; + char *old; + HTList *cur; + + if (isEmpty(url)) + return; + + CTRACE((tfp, "HTAddGotoURL %s\n", url)); + StrAllocCopy(mycopy, url); + + if (!Goto_URLs) { + Goto_URLs = HTList_new(); +#ifdef LY_FIND_LEAKS + atexit(HTGotoURLs_free); +#endif + HTList_addObject(Goto_URLs, mycopy); + return; + } + + cur = Goto_URLs; + while (NULL != (old = (char *) HTList_nextObject(cur))) { + if (!strcmp(old, mycopy)) { + HTList_removeObject(Goto_URLs, old); + FREE(old); + break; + } + } + HTList_addObject(Goto_URLs, mycopy); + + return; +} + +/* + * When help is not on the screen, put a message on the screen to tell the user + * other misc info. + */ +static void show_main_statusline(const LinkInfo curlink, + int for_what) +{ + /* + * Make sure form novice lines are replaced. + */ + if (user_mode == NOVICE_MODE && for_what != FOR_INPUT) { + noviceline(more_text); + } + + if (HTisDocumentSource()) { + /* + * Currently displaying HTML source. + */ + _statusline(SOURCE_HELP); + + /* + * If we are in forms mode then explicitly tell the user what each kind + * of link is. + */ +#ifdef INDICATE_FORMS_MODE_FOR_ALL_LINKS_ON_PAGE + } else if (lynx_mode == FORMS_LYNX_MODE && nlinks > 0) { +#else +#ifdef NORMAL_NON_FORM_LINK_STATUSLINES_FOR_ALL_USER_MODES + } else if (lynx_mode == FORMS_LYNX_MODE && nlinks > 0 && + !(curlink.type & WWW_LINK_TYPE)) { +#else + } else if (lynx_mode == FORMS_LYNX_MODE && nlinks > 0 && + !((user_mode == ADVANCED_MODE || user_mode == MINIMAL_MODE) && + (curlink.type & WWW_LINK_TYPE))) { +#endif /* NORMAL_NON_FORM_LINK_STATUSLINES_FOR_ALL_USER_MODES */ +#endif /* INDICATE_FORMS_MODE_FOR_ALL_LINKS_ON_PAGE */ + if (curlink.type == WWW_FORM_LINK_TYPE) { + show_formlink_statusline(curlink.l_form, for_what); + } else { + statusline(NORMAL_LINK_MESSAGE); + } + + /* + * Let them know if it's an index -- very rare. + */ + if (is_www_index) { + const char *indx = gettext("-index-"); + + LYmove(LYlines - 1, LYcolLimit - (int) strlen(indx)); + lynx_start_reverse(); + LYaddstr(indx); + lynx_stop_reverse(); + } + + } else if ((user_mode == ADVANCED_MODE) && nlinks > 0) { + /* + * Show the URL or, for some internal links, the fragment + */ + char *cp = NULL; + + if (curlink.type == WWW_INTERN_LINK_TYPE && + !isLYNXIMGMAP(curlink.lname)) { + cp = findPoundSelector(curlink.lname); + } + if (!cp) + cp = curlink.lname; + status_link(cp, more_text, is_www_index); + } else if ((user_mode == MINIMAL_MODE) && nlinks > 0) { + /* + * no URL + */ + status_link("", more_text, is_www_index); + } else if (is_www_index && more_text) { + char buf[128]; + + sprintf(buf, WWW_INDEX_MORE_MESSAGE, key_for_func(LYK_INDEX_SEARCH)); + _statusline(buf); + } else if (is_www_index) { + char buf[128]; + + sprintf(buf, WWW_INDEX_MESSAGE, key_for_func(LYK_INDEX_SEARCH)); + _statusline(buf); + } else if (more_text) { + if (user_mode == NOVICE_MODE) + _statusline(MORE); + else + _statusline(MOREHELP); + } else if (user_mode != MINIMAL_MODE) { + _statusline(HELP); + } else { + _statusline(""); + } + + /* turn off cursor since now it's probably on statusline -HV */ + /* But not if LYShowCursor is on. -show_cursor may be used as a + * workaround to avoid putting the cursor in the last position, for + * curses implementations or terminals that cannot deal with that + * correctly. - kw */ + if (!LYShowCursor) { + LYHideCursor(); + } +} + +/* + * Public function for redrawing the statusline appropriate for the selected + * link. It should only be called at times when curdoc.link, nlinks, and the + * links[] array are valid. - kw + */ +void repaint_main_statusline(int for_what) +{ + if (curdoc.link >= 0 && curdoc.link < nlinks) + show_main_statusline(links[curdoc.link], for_what); +} + +static void form_noviceline(int disabled) +{ + LYmove(LYlines - 2, 0); + LYclrtoeol(); + if (!disabled) { + LYaddstr(FORM_NOVICELINE_ONE); + } + LYParkCursor(); + + if (disabled) + return; + if (EditBinding(FROMASCII('\025')) == LYE_ERASE) { + LYaddstr(FORM_NOVICELINE_TWO); + } else if (EditBinding(FROMASCII('\025')) == LYE_DELBL) { + LYaddstr(FORM_NOVICELINE_TWO_DELBL); + } else { + char *temp = NULL; + char *erasekey = fmt_keys(LYKeyForEditAction(LYE_ERASE), -1); + + if (erasekey) { + HTSprintf0(&temp, FORM_NOVICELINE_TWO_VAR, erasekey); + } else { + erasekey = fmt_keys(LYKeyForEditAction(LYE_DELBL), -1); + if (erasekey) + HTSprintf0(&temp, + FORM_NOVICELINE_TWO_DELBL_VAR, erasekey); + } + if (temp) { + LYaddstr(temp); + FREE(temp); + } + FREE(erasekey); + } +} + +static void exit_immediately_with_error_message(int state, int first_file) +{ + char *buf = 0; + char *buf2 = 0; + + if (first_file) { + /* print statusline messages as a hint, if any */ + LYstatusline_messages_on_exit(&buf2); + } + + if (state == NOT_FOUND) { + HTSprintf0(&buf, "%s\n%s %s\n", + NonNull(buf2), + gettext("lynx: Can't access startfile"), + /* + * hack: if we fail in HTAccess.c + * avoid duplicating URL, oh. + */ + (buf2 && strstr(buf2, gettext("Can't Access"))) ? + "" : startfile); + } + + if (state == NULLFILE) { + HTSprintf0(&buf, "%s\n%s\n%s\n", + NonNull(buf2), + gettext("lynx: Start file could not be found or is not text/html or text/plain"), + gettext(" Exiting...")); + } + + FREE(buf2); + + if (!dump_output_immediately) + cleanup(); + + if (buf != 0) { +#ifdef UNIX + if (dump_output_immediately) { + fputs(buf, stderr); + } else +#endif /* UNIX */ + { + SetOutputMode(O_TEXT); + fputs(buf, stdout); + SetOutputMode(O_BINARY); + } + + FREE(buf); + } + + if (!dump_output_immediately) { + exit_immediately(EXIT_FAILURE); + } + /* else: return(EXIT_FAILURE) in mainloop */ +} + +static void status_link(const char *curlink_name, + int show_more, + int show_indx) +{ +#define MAX_STATUS (LYcolLimit - 1) +#define MIN_STATUS 0 + char format[MAX_LINE]; + int prefix = 0; + int length; + + *format = 0; + if (show_more && !nomore) { + sprintf(format, "%.*s ", + (int) (sizeof(format) - 2), + gettext("-more-")); + prefix = (int) strlen(format); + } + if (show_indx) { + sprintf(format + prefix, "%.*s ", + ((int) sizeof(format) - prefix - 2), + gettext("-index-")); + } + prefix = (int) strlen(format); + length = (int) strlen(curlink_name); + + if (prefix > MAX_STATUS || prefix >= MAX_LINE - 10) { + _user_message("%s", format); /* no room for url */ + } else { + sprintf(format + prefix, "%%.%ds", MAX_STATUS - prefix); + + if ((length + prefix > MAX_STATUS) && long_url_ok) { + char *buf = NULL; + int cut_from_pos; + int cut_to_pos; + int n; + + StrAllocCopy(buf, curlink_name); + /* + * Scan to find the final leaf of the URL. Ignore trailing '/'. + */ + for (cut_to_pos = length - 2; + (cut_to_pos > 0) && (buf[cut_to_pos] != '/'); + cut_to_pos--) ; + /* + * Jump back to the next leaf to remove. + */ + for (cut_from_pos = cut_to_pos - 4; + (cut_from_pos > 0) && ((buf[cut_from_pos] != '/') + || ((prefix + cut_from_pos + + 4 + + (length - cut_to_pos)) >= MAX_STATUS)); + cut_from_pos--) ; + /* + * Replace some leaves to '...', if possible, and put the final + * leaf at the end. We assume that one can recognize the link from + * at least MIN_STATUS characters. + */ + if (cut_from_pos > MIN_STATUS) { + for (n = 1; n <= 3; n++) + buf[cut_from_pos + n] = '.'; + for (n = 0; cut_to_pos + n <= length; n++) + buf[cut_from_pos + 4 + n] = buf[cut_to_pos + n]; + } + _user_message(format, buf); + CTRACE((tfp, "lastline = %s\n", buf)); /* don't forget to erase me */ + FREE(buf); + } else { /* show (possibly truncated) url */ + _user_message(format, curlink_name); + } + } +} + +const char *LYDownLoadAddress(void) +{ + return NonNull(newdoc.address); +} |