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Diffstat (limited to '')
| -rw-r--r-- | modules/generators/mod_autoindex.c | 2350 |
1 files changed, 2350 insertions, 0 deletions
diff --git a/modules/generators/mod_autoindex.c b/modules/generators/mod_autoindex.c new file mode 100644 index 0000000..cb44603 --- /dev/null +++ b/modules/generators/mod_autoindex.c @@ -0,0 +1,2350 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * mod_autoindex.c: Handles the on-the-fly html index generation + * + * Rob McCool + * 3/23/93 + * + * Adapted to Apache by rst. + * + * Version sort added by Martin Pool <mbp@humbug.org.au>. + */ + +#include "apr_strings.h" +#include "apr_fnmatch.h" +#include "apr_strings.h" +#include "apr_lib.h" + +#define APR_WANT_STRFUNC +#include "apr_want.h" + +#include "ap_config.h" +#include "httpd.h" +#include "http_config.h" +#include "http_core.h" +#include "http_request.h" +#include "http_protocol.h" +#include "http_log.h" +#include "http_main.h" +#include "util_script.h" + +#include "mod_core.h" + +module AP_MODULE_DECLARE_DATA autoindex_module; + +/**************************************************************** + * + * Handling configuration directives... + */ + +#define NO_OPTIONS (1 << 0) /* Indexing options */ +#define ICONS_ARE_LINKS (1 << 1) +#define SCAN_HTML_TITLES (1 << 2) +#define SUPPRESS_ICON (1 << 3) +#define SUPPRESS_LAST_MOD (1 << 4) +#define SUPPRESS_SIZE (1 << 5) +#define SUPPRESS_DESC (1 << 6) +#define SUPPRESS_PREAMBLE (1 << 7) +#define SUPPRESS_COLSORT (1 << 8) +#define SUPPRESS_RULES (1 << 9) +#define FOLDERS_FIRST (1 << 10) +#define VERSION_SORT (1 << 11) +#define TRACK_MODIFIED (1 << 12) +#define FANCY_INDEXING (1 << 13) +#define TABLE_INDEXING (1 << 14) +#define IGNORE_CLIENT (1 << 15) +#define IGNORE_CASE (1 << 16) +#define EMIT_XHTML (1 << 17) +#define SHOW_FORBIDDEN (1 << 18) +#define ADDALTCLASS (1 << 19) +#define OPTION_UNSET (1 << 20) + +#define K_NOADJUST 0 +#define K_ADJUST 1 +#define K_UNSET 2 + +/* + * Define keys for sorting. + */ +#define K_NAME 'N' /* Sort by file name (default) */ +#define K_LAST_MOD 'M' /* Last modification date */ +#define K_SIZE 'S' /* Size (absolute, not as displayed) */ +#define K_DESC 'D' /* Description */ +#define K_VALID "NMSD" /* String containing _all_ valid K_ opts */ + +#define D_ASCENDING 'A' +#define D_DESCENDING 'D' +#define D_VALID "AD" /* String containing _all_ valid D_ opts */ + +/* + * These are the dimensions of the default icons supplied with Apache. + */ +#define DEFAULT_ICON_WIDTH 20 +#define DEFAULT_ICON_HEIGHT 22 + +/* + * Other default dimensions. + */ +#define DEFAULT_NAME_WIDTH 23 +#define DEFAULT_DESC_WIDTH 23 + +struct item { + char *type; + char *apply_to; + char *apply_path; + char *data; +}; + +typedef struct ai_desc_t { + char *pattern; + char *description; + int full_path; + int wildcards; +} ai_desc_t; + +typedef struct autoindex_config_struct { + + char *default_icon; + char *style_sheet; + char *head_insert; + char *header; + char *readme; + apr_int32_t opts; + apr_int32_t incremented_opts; + apr_int32_t decremented_opts; + int name_width; + int name_adjust; + int desc_width; + int desc_adjust; + int icon_width; + int icon_height; + char default_keyid; + char default_direction; + + apr_array_header_t *icon_list; + apr_array_header_t *alt_list; + apr_array_header_t *desc_list; + apr_array_header_t *ign_list; + int ign_noinherit; + + char *ctype; + char *charset; + char *datetime_format; +} autoindex_config_rec; + +static char c_by_encoding, c_by_type, c_by_path; + +#define BY_ENCODING &c_by_encoding +#define BY_TYPE &c_by_type +#define BY_PATH &c_by_path + +static APR_INLINE int response_is_html(request_rec *r) +{ + char *ctype = ap_field_noparam(r->pool, r->content_type); + + return !ap_cstr_casecmp(ctype, "text/html") + || !ap_cstr_casecmp(ctype, "application/xhtml+xml"); +} + +/* + * This routine puts the standard HTML header at the top of the index page. + * We include the DOCTYPE because we may be using features therefrom (i.e., + * HEIGHT and WIDTH attributes on the icons if we're FancyIndexing). + */ +static void emit_preamble(request_rec *r, int xhtml, const char *title) +{ + autoindex_config_rec *d; + + d = (autoindex_config_rec *) ap_get_module_config(r->per_dir_config, + &autoindex_module); + + if (xhtml) { + ap_rvputs(r, DOCTYPE_XHTML_1_0T, + "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n" + " <head>\n <title>Index of ", title, + "</title>\n", NULL); + } else { + ap_rvputs(r, DOCTYPE_HTML_3_2, + "<html>\n <head>\n" + " <title>Index of ", title, + "</title>\n", NULL); + } + + if (d->style_sheet != NULL) { + ap_rvputs(r, " <link rel=\"stylesheet\" href=\"", d->style_sheet, + "\" type=\"text/css\"", xhtml ? " />\n" : ">\n", NULL); + } + if (d->head_insert != NULL) { + ap_rputs(d->head_insert, r); + } + ap_rputs(" </head>\n <body>\n", r); +} + +static void push_item(apr_array_header_t *arr, char *type, const char *to, + const char *path, const char *data) +{ + struct item *p = (struct item *) apr_array_push(arr); + + if (!to) { + to = ""; + } + if (!path) { + path = ""; + } + + p->type = type; + p->data = apr_pstrdup(arr->pool, data); + p->apply_path = apr_pstrcat(arr->pool, path, "*", NULL); + + if ((type == BY_PATH) && (!ap_is_matchexp(to))) { + p->apply_to = apr_pstrcat(arr->pool, "*", to, NULL); + } + else { + p->apply_to = apr_pstrdup(arr->pool, to); + } +} + +static const char *add_alt(cmd_parms *cmd, void *d, const char *alt, + const char *to) +{ + if (cmd->info == BY_PATH) { + if (!strcmp(to, "**DIRECTORY**")) { + to = "^^DIRECTORY^^"; + } + } + if (cmd->info == BY_ENCODING) { + char *tmp = apr_pstrdup(cmd->temp_pool, to); + ap_str_tolower(tmp); + to = tmp; + } + + push_item(((autoindex_config_rec *) d)->alt_list, cmd->info, to, + cmd->path, alt); + return NULL; +} + +static const char *add_icon(cmd_parms *cmd, void *d, const char *icon, + const char *to) +{ + char *iconbak = apr_pstrdup(cmd->temp_pool, icon); + + if (icon[0] == '(') { + char *alt; + char *cl = strchr(iconbak, ')'); + + if (cl == NULL) { + return "missing closing paren"; + } + alt = ap_getword_nc(cmd->temp_pool, &iconbak, ','); + *cl = '\0'; /* Lose closing paren */ + add_alt(cmd, d, &alt[1], to); + } + if (cmd->info == BY_PATH) { + if (!strcmp(to, "**DIRECTORY**")) { + to = "^^DIRECTORY^^"; + } + } + if (cmd->info == BY_ENCODING) { + char *tmp = apr_pstrdup(cmd->temp_pool, to); + ap_str_tolower(tmp); + to = tmp; + } + + push_item(((autoindex_config_rec *) d)->icon_list, cmd->info, to, + cmd->path, iconbak); + return NULL; +} + +/* + * Add description text for a filename pattern. If the pattern has + * wildcards already (or we need to add them), add leading and + * trailing wildcards to it to ensure substring processing. If the + * pattern contains a '/' anywhere, force wildcard matching mode, + * add a slash to the prefix so that "bar/bletch" won't be matched + * by "foobar/bletch", and make a note that there's a delimiter; + * the matching routine simplifies to just the actual filename + * whenever it can. This allows definitions in parent directories + * to be made for files in subordinate ones using relative paths. + */ + +/* + * Absent a strcasestr() function, we have to force wildcards on + * systems for which "AAA" and "aaa" mean the same file. + */ +#ifdef CASE_BLIND_FILESYSTEM +#define WILDCARDS_REQUIRED 1 +#else +#define WILDCARDS_REQUIRED 0 +#endif + +static const char *add_desc(cmd_parms *cmd, void *d, const char *desc, + const char *to) +{ + autoindex_config_rec *dcfg = (autoindex_config_rec *) d; + ai_desc_t *desc_entry; + char *prefix = ""; + + desc_entry = (ai_desc_t *) apr_array_push(dcfg->desc_list); + desc_entry->full_path = (ap_strchr_c(to, '/') == NULL) ? 0 : 1; + desc_entry->wildcards = (WILDCARDS_REQUIRED + || desc_entry->full_path + || apr_fnmatch_test(to)); + if (desc_entry->wildcards) { + prefix = desc_entry->full_path ? "*/" : "*"; + desc_entry->pattern = apr_pstrcat(dcfg->desc_list->pool, + prefix, to, "*", NULL); + } + else { + desc_entry->pattern = apr_pstrdup(dcfg->desc_list->pool, to); + } + desc_entry->description = apr_pstrdup(dcfg->desc_list->pool, desc); + return NULL; +} + +static const char *add_ignore(cmd_parms *cmd, void *d, const char *ext) +{ + push_item(((autoindex_config_rec *) d)->ign_list, 0, ext, cmd->path, NULL); + return NULL; +} + +static const char *add_opts(cmd_parms *cmd, void *d, int argc, char *const argv[]) +{ + int i; + char *w; + apr_int32_t opts; + apr_int32_t opts_add; + apr_int32_t opts_remove; + char action; + autoindex_config_rec *d_cfg = (autoindex_config_rec *) d; + + opts = d_cfg->opts; + opts_add = d_cfg->incremented_opts; + opts_remove = d_cfg->decremented_opts; + + for (i = 0; i < argc; i++) { + int option = 0; + w = argv[i]; + + if ((*w == '+') || (*w == '-')) { + action = *(w++); + } + else { + action = '\0'; + } + if (!strcasecmp(w, "FancyIndexing")) { + option = FANCY_INDEXING; + } + else if (!strcasecmp(w, "FoldersFirst")) { + option = FOLDERS_FIRST; + } + else if (!strcasecmp(w, "HTMLTable")) { + option = TABLE_INDEXING; + } + else if (!strcasecmp(w, "IconsAreLinks")) { + option = ICONS_ARE_LINKS; + } + else if (!strcasecmp(w, "IgnoreCase")) { + option = IGNORE_CASE; + } + else if (!strcasecmp(w, "IgnoreClient")) { + option = IGNORE_CLIENT; + } + else if (!strcasecmp(w, "ScanHTMLTitles")) { + option = SCAN_HTML_TITLES; + } + else if (!strcasecmp(w, "SuppressColumnSorting")) { + option = SUPPRESS_COLSORT; + } + else if (!strcasecmp(w, "SuppressDescription")) { + option = SUPPRESS_DESC; + } + else if (!strcasecmp(w, "SuppressHTMLPreamble")) { + option = SUPPRESS_PREAMBLE; + } + else if (!strcasecmp(w, "SuppressIcon")) { + option = SUPPRESS_ICON; + } + else if (!strcasecmp(w, "SuppressLastModified")) { + option = SUPPRESS_LAST_MOD; + } + else if (!strcasecmp(w, "SuppressSize")) { + option = SUPPRESS_SIZE; + } + else if (!strcasecmp(w, "SuppressRules")) { + option = SUPPRESS_RULES; + } + else if (!strcasecmp(w, "TrackModified")) { + option = TRACK_MODIFIED; + } + else if (!strcasecmp(w, "VersionSort")) { + option = VERSION_SORT; + } + else if (!strcasecmp(w, "XHTML")) { + option = EMIT_XHTML; + } + else if (!strcasecmp(w, "ShowForbidden")) { + option = SHOW_FORBIDDEN; + } + else if (!strcasecmp(w, "AddAltClass")) { + option = ADDALTCLASS; + } + else if (!strcasecmp(w, "None")) { + if (action != '\0') { + return "Cannot combine '+' or '-' with 'None' keyword"; + } + opts = NO_OPTIONS; + opts_add = 0; + opts_remove = 0; + } + else if (!strcasecmp(w, "IconWidth")) { + if (action != '-') { + d_cfg->icon_width = DEFAULT_ICON_WIDTH; + } + else { + d_cfg->icon_width = 0; + } + } + else if (!strncasecmp(w, "IconWidth=", 10)) { + if (action == '-') { + return "Cannot combine '-' with IconWidth=n"; + } + d_cfg->icon_width = atoi(&w[10]); + } + else if (!strcasecmp(w, "IconHeight")) { + if (action != '-') { + d_cfg->icon_height = DEFAULT_ICON_HEIGHT; + } + else { + d_cfg->icon_height = 0; + } + } + else if (!strncasecmp(w, "IconHeight=", 11)) { + if (action == '-') { + return "Cannot combine '-' with IconHeight=n"; + } + d_cfg->icon_height = atoi(&w[11]); + } + else if (!strcasecmp(w, "NameWidth")) { + if (action != '-') { + return "NameWidth with no value may only appear as " + "'-NameWidth'"; + } + d_cfg->name_width = DEFAULT_NAME_WIDTH; + d_cfg->name_adjust = K_NOADJUST; + } + else if (!strncasecmp(w, "NameWidth=", 10)) { + if (action == '-') { + return "Cannot combine '-' with NameWidth=n"; + } + if (w[10] == '*') { + d_cfg->name_adjust = K_ADJUST; + } + else { + int width = atoi(&w[10]); + + if (width && (width < 5)) { + return "NameWidth value must be greater than 5"; + } + d_cfg->name_width = width; + d_cfg->name_adjust = K_NOADJUST; + } + } + else if (!strcasecmp(w, "DescriptionWidth")) { + if (action != '-') { + return "DescriptionWidth with no value may only appear as " + "'-DescriptionWidth'"; + } + d_cfg->desc_width = DEFAULT_DESC_WIDTH; + d_cfg->desc_adjust = K_NOADJUST; + } + else if (!strncasecmp(w, "DescriptionWidth=", 17)) { + if (action == '-') { + return "Cannot combine '-' with DescriptionWidth=n"; + } + if (w[17] == '*') { + d_cfg->desc_adjust = K_ADJUST; + } + else { + int width = atoi(&w[17]); + + if (width && (width < 12)) { + return "DescriptionWidth value must be greater than 12"; + } + d_cfg->desc_width = width; + d_cfg->desc_adjust = K_NOADJUST; + } + } + else if (!strncasecmp(w, "Type=", 5)) { + d_cfg->ctype = apr_pstrdup(cmd->pool, &w[5]); + } + else if (!strncasecmp(w, "Charset=", 8)) { + d_cfg->charset = apr_pstrdup(cmd->pool, &w[8]); + } + else if (!strcasecmp(w, "UseOldDateFormat")) { + d_cfg->datetime_format = "%d-%b-%Y %H:%M"; + } + else { + return "Invalid directory indexing option"; + } + if (action == '\0') { + opts |= option; + opts_add = 0; + opts_remove = 0; + } + else if (action == '+') { + opts_add |= option; + opts_remove &= ~option; + } + else { + opts_remove |= option; + opts_add &= ~option; + } + } + if ((opts & NO_OPTIONS) && (opts & ~NO_OPTIONS)) { + return "Cannot combine other IndexOptions keywords with 'None'"; + } + d_cfg->incremented_opts = opts_add; + d_cfg->decremented_opts = opts_remove; + d_cfg->opts = opts; + return NULL; +} + +static const char *set_default_order(cmd_parms *cmd, void *m, + const char *direction, const char *key) +{ + autoindex_config_rec *d_cfg = (autoindex_config_rec *) m; + + if (!strcasecmp(direction, "Ascending")) { + d_cfg->default_direction = D_ASCENDING; + } + else if (!strcasecmp(direction, "Descending")) { + d_cfg->default_direction = D_DESCENDING; + } + else { + return "First keyword must be 'Ascending' or 'Descending'"; + } + + if (!strcasecmp(key, "Name")) { + d_cfg->default_keyid = K_NAME; + } + else if (!strcasecmp(key, "Date")) { + d_cfg->default_keyid = K_LAST_MOD; + } + else if (!strcasecmp(key, "Size")) { + d_cfg->default_keyid = K_SIZE; + } + else if (!strcasecmp(key, "Description")) { + d_cfg->default_keyid = K_DESC; + } + else { + return "Second keyword must be 'Name', 'Date', 'Size', or " + "'Description'"; + } + + return NULL; +} + +#define DIR_CMD_PERMS OR_INDEXES + +static const command_rec autoindex_cmds[] = +{ + AP_INIT_ITERATE2("AddIcon", add_icon, BY_PATH, DIR_CMD_PERMS, + "an icon URL followed by one or more filenames"), + AP_INIT_ITERATE2("AddIconByType", add_icon, BY_TYPE, DIR_CMD_PERMS, + "an icon URL followed by one or more MIME types"), + AP_INIT_ITERATE2("AddIconByEncoding", add_icon, BY_ENCODING, DIR_CMD_PERMS, + "an icon URL followed by one or more content encodings"), + AP_INIT_ITERATE2("AddAlt", add_alt, BY_PATH, DIR_CMD_PERMS, + "alternate descriptive text followed by one or more " + "filenames"), + AP_INIT_ITERATE2("AddAltByType", add_alt, BY_TYPE, DIR_CMD_PERMS, + "alternate descriptive text followed by one or more MIME " + "types"), + AP_INIT_ITERATE2("AddAltByEncoding", add_alt, BY_ENCODING, DIR_CMD_PERMS, + "alternate descriptive text followed by one or more " + "content encodings"), + AP_INIT_TAKE_ARGV("IndexOptions", add_opts, NULL, DIR_CMD_PERMS, + "one or more index options [+|-][]"), + AP_INIT_TAKE2("IndexOrderDefault", set_default_order, NULL, DIR_CMD_PERMS, + "{Ascending,Descending} {Name,Size,Description,Date}"), + AP_INIT_ITERATE("IndexIgnore", add_ignore, NULL, DIR_CMD_PERMS, + "one or more file extensions"), + AP_INIT_FLAG("IndexIgnoreReset", ap_set_flag_slot, + (void *)APR_OFFSETOF(autoindex_config_rec, ign_noinherit), + DIR_CMD_PERMS, + "Reset the inherited list of IndexIgnore filenames"), + AP_INIT_ITERATE2("AddDescription", add_desc, BY_PATH, DIR_CMD_PERMS, + "Descriptive text followed by one or more filenames"), + AP_INIT_TAKE1("HeaderName", ap_set_string_slot, + (void *)APR_OFFSETOF(autoindex_config_rec, header), + DIR_CMD_PERMS, "a filename"), + AP_INIT_TAKE1("ReadmeName", ap_set_string_slot, + (void *)APR_OFFSETOF(autoindex_config_rec, readme), + DIR_CMD_PERMS, "a filename"), + AP_INIT_RAW_ARGS("FancyIndexing", ap_set_deprecated, NULL, OR_ALL, + "The FancyIndexing directive is no longer supported. " + "Use IndexOptions FancyIndexing."), + AP_INIT_TAKE1("DefaultIcon", ap_set_string_slot, + (void *)APR_OFFSETOF(autoindex_config_rec, default_icon), + DIR_CMD_PERMS, "an icon URL"), + AP_INIT_TAKE1("IndexStyleSheet", ap_set_string_slot, + (void *)APR_OFFSETOF(autoindex_config_rec, style_sheet), + DIR_CMD_PERMS, "URL to style sheet"), + AP_INIT_TAKE1("IndexHeadInsert", ap_set_string_slot, + (void *)APR_OFFSETOF(autoindex_config_rec, head_insert), + DIR_CMD_PERMS, "String to insert in HTML HEAD section"), + {NULL} +}; + +static void *create_autoindex_config(apr_pool_t *p, char *dummy) +{ + autoindex_config_rec *new = + (autoindex_config_rec *) apr_pcalloc(p, sizeof(autoindex_config_rec)); + + new->icon_width = 0; + new->icon_height = 0; + new->name_width = DEFAULT_NAME_WIDTH; + new->name_adjust = K_UNSET; + new->desc_width = DEFAULT_DESC_WIDTH; + new->desc_adjust = K_UNSET; + new->icon_list = apr_array_make(p, 4, sizeof(struct item)); + new->alt_list = apr_array_make(p, 4, sizeof(struct item)); + new->desc_list = apr_array_make(p, 4, sizeof(ai_desc_t)); + new->ign_list = apr_array_make(p, 4, sizeof(struct item)); + new->opts = OPTION_UNSET; + new->incremented_opts = 0; + new->decremented_opts = 0; + new->default_keyid = '\0'; + new->default_direction = '\0'; + + return (void *) new; +} + +static void *merge_autoindex_configs(apr_pool_t *p, void *basev, void *addv) +{ + autoindex_config_rec *new; + autoindex_config_rec *base = (autoindex_config_rec *) basev; + autoindex_config_rec *add = (autoindex_config_rec *) addv; + + new = (autoindex_config_rec *) apr_pcalloc(p, sizeof(autoindex_config_rec)); + new->default_icon = add->default_icon ? add->default_icon + : base->default_icon; + new->style_sheet = add->style_sheet ? add->style_sheet + : base->style_sheet; + new->head_insert = add->head_insert ? add->head_insert + : base->head_insert; + new->header = add->header ? add->header + : base->header; + new->readme = add->readme ? add->readme + : base->readme; + new->icon_height = add->icon_height ? add->icon_height : base->icon_height; + new->icon_width = add->icon_width ? add->icon_width : base->icon_width; + + new->ctype = add->ctype ? add->ctype : base->ctype; + new->charset = add->charset ? add->charset : base->charset; + new->datetime_format = add->datetime_format ? add->datetime_format : base->datetime_format; + + new->alt_list = apr_array_append(p, add->alt_list, base->alt_list); + new->desc_list = apr_array_append(p, add->desc_list, base->desc_list); + new->icon_list = apr_array_append(p, add->icon_list, base->icon_list); + new->ign_list = add->ign_noinherit ? add->ign_list : apr_array_append(p, add->ign_list, base->ign_list); + if (add->opts == NO_OPTIONS) { + /* + * If the current directory explicitly says 'no options' then we also + * clear any incremental mods from being inheritable further down. + */ + new->opts = NO_OPTIONS; + new->incremented_opts = 0; + new->decremented_opts = 0; + } + else { + /* + * If there were any nonincremental options selected for + * this directory, they dominate and we don't inherit *anything.* + * Contrariwise, we *do* inherit if the only settings here are + * incremental ones. + */ + if (add->opts == OPTION_UNSET) { + new->incremented_opts = (base->incremented_opts + | add->incremented_opts) + & ~add->decremented_opts; + new->decremented_opts = (base->decremented_opts + | add->decremented_opts); + /* + * We may have incremental settings, so make sure we don't + * inadvertently inherit an IndexOptions None from above. + */ + new->opts = (base->opts & ~NO_OPTIONS); + } + else { + /* + * There are local nonincremental settings, which clear + * all inheritance from above. They *are* the new base settings. + */ + new->opts = add->opts; + } + /* + * We're guaranteed that there'll be no overlap between + * the add-options and the remove-options. + */ + new->opts |= new->incremented_opts; + new->opts &= ~new->decremented_opts; + } + /* + * Inherit the NameWidth settings if there aren't any specific to + * the new location; otherwise we'll end up using the defaults set in the + * config-rec creation routine. + */ + if (add->name_adjust == K_UNSET) { + new->name_width = base->name_width; + new->name_adjust = base->name_adjust; + } + else { + new->name_width = add->name_width; + new->name_adjust = add->name_adjust; + } + + /* + * Likewise for DescriptionWidth. + */ + if (add->desc_adjust == K_UNSET) { + new->desc_width = base->desc_width; + new->desc_adjust = base->desc_adjust; + } + else { + new->desc_width = add->desc_width; + new->desc_adjust = add->desc_adjust; + } + + new->default_keyid = add->default_keyid ? add->default_keyid + : base->default_keyid; + new->default_direction = add->default_direction ? add->default_direction + : base->default_direction; + return new; +} + +/**************************************************************** + * + * Looking things up in config entries... + */ + +/* Structure used to hold entries when we're actually building an index */ + +struct ent { + char *name; + char *icon; + char *alt; + char *desc; + apr_off_t size; + apr_time_t lm; + struct ent *next; + int ascending, ignore_case, version_sort; + char key; + int isdir; +}; + +static char *find_item(const char *content_type, const char *content_encoding, + char *path, apr_array_header_t *list, int path_only) +{ + struct item *items = (struct item *) list->elts; + int i; + + for (i = 0; i < list->nelts; ++i) { + struct item *p = &items[i]; + + /* Special cased for ^^DIRECTORY^^ and ^^BLANKICON^^ */ + if ((path[0] == '^') || (!ap_strcmp_match(path, p->apply_path))) { + if (!*(p->apply_to)) { + return p->data; + } + else if (p->type == BY_PATH || path[0] == '^') { + if (!ap_strcmp_match(path, p->apply_to)) { + return p->data; + } + } + else if (!path_only) { + if (!content_encoding) { + if (p->type == BY_TYPE) { + if (content_type + && !ap_strcasecmp_match(content_type, + p->apply_to)) { + return p->data; + } + } + } + else { + if (p->type == BY_ENCODING) { + if (!ap_strcasecmp_match(content_encoding, + p->apply_to)) { + return p->data; + } + } + } + } + } + } + return NULL; +} + +static char *find_item_by_request(request_rec *r, apr_array_header_t *list, int path_only) +{ + return find_item(ap_field_noparam(r->pool, r->content_type), + r->content_encoding, r->filename, list, path_only); +} + +#define find_icon(d,p,t) find_item_by_request(p,d->icon_list,t) +#define find_alt(d,p,t) find_item_by_request(p,d->alt_list,t) +#define find_default_icon(d,n) find_item(NULL, NULL, n, d->icon_list, 1) +#define find_default_alt(d,n) find_item(NULL, NULL, n, d->alt_list, 1) + +/* + * Look through the list of pattern/description pairs and return the first one + * if any) that matches the filename in the request. If multiple patterns + * match, only the first one is used; since the order in the array is the + * same as the order in which directives were processed, earlier matching + * directives will dominate. + */ + +#ifdef CASE_BLIND_FILESYSTEM +#define MATCH_FLAGS APR_FNM_CASE_BLIND +#else +#define MATCH_FLAGS 0 +#endif + +static char *find_desc(autoindex_config_rec *dcfg, const char *filename_full) +{ + int i; + ai_desc_t *list = (ai_desc_t *) dcfg->desc_list->elts; + const char *filename_only; + const char *filename; + + /* + * If the filename includes a path, extract just the name itself + * for the simple matches. + */ + if ((filename_only = ap_strrchr_c(filename_full, '/')) == NULL) { + filename_only = filename_full; + } + else { + filename_only++; + } + for (i = 0; i < dcfg->desc_list->nelts; ++i) { + ai_desc_t *tuple = &list[i]; + int found; + + /* + * Only use the full-path filename if the pattern contains '/'s. + */ + filename = (tuple->full_path) ? filename_full : filename_only; + /* + * Make the comparison using the cheapest method; only do + * wildcard checking if we must. + */ + if (tuple->wildcards) { + found = (apr_fnmatch(tuple->pattern, filename, MATCH_FLAGS) == 0); + } + else { + found = (ap_strstr_c(filename, tuple->pattern) != NULL); + } + if (found) { + return tuple->description; + } + } + return NULL; +} + +static int ignore_entry(autoindex_config_rec *d, char *path) +{ + apr_array_header_t *list = d->ign_list; + struct item *items = (struct item *) list->elts; + char *tt; + int i; + + if ((tt = strrchr(path, '/')) == NULL) { + tt = path; + } + else { + tt++; + } + + for (i = 0; i < list->nelts; ++i) { + struct item *p = &items[i]; + char *ap; + + if ((ap = strrchr(p->apply_to, '/')) == NULL) { + ap = p->apply_to; + } + else { + ap++; + } + +#ifndef CASE_BLIND_FILESYSTEM + if (!ap_strcmp_match(path, p->apply_path) + && !ap_strcmp_match(tt, ap)) { + return 1; + } +#else /* !CASE_BLIND_FILESYSTEM */ + /* + * On some platforms, the match must be case-blind. This is really + * a factor of the filesystem involved, but we can't detect that + * reliably - so we have to granularise at the OS level. + */ + if (!ap_strcasecmp_match(path, p->apply_path) + && !ap_strcasecmp_match(tt, ap)) { + return 1; + } +#endif /* !CASE_BLIND_FILESYSTEM */ + } + return 0; +} + +/***************************************************************** + * + * Actually generating output + */ + +/* + * Elements of the emitted document: + * Preamble + * Emitted unless SUPPRESS_PREAMBLE is set AND ap_run_sub_req + * succeeds for the (content_type == text/html) header file. + * Header file + * Emitted if found (and able). + * H1 tag line + * Emitted if a header file is NOT emitted. + * Directory stuff + * Always emitted. + * HR + * Emitted if FANCY_INDEXING is set. + * Readme file + * Emitted if found (and able). + * ServerSig + * Emitted if ServerSignature is not Off AND a readme file + * is NOT emitted. + * Postamble + * Emitted unless SUPPRESS_PREAMBLE is set AND ap_run_sub_req + * succeeds for the (content_type == text/html) readme file. + */ + + +/* + * emit a plain text file + */ +static void do_emit_plain(request_rec *r, apr_file_t *f) +{ + char buf[AP_IOBUFSIZE + 1]; + int ch; + apr_size_t i, c, n; + apr_status_t rv; + + ap_rputs("<pre>\n", r); + while (!apr_file_eof(f)) { + do { + n = sizeof(char) * AP_IOBUFSIZE; + rv = apr_file_read(f, buf, &n); + } while (APR_STATUS_IS_EINTR(rv)); + if (n == 0 || rv != APR_SUCCESS) { + /* ###: better error here? */ + break; + } + buf[n] = '\0'; + c = 0; + while (c < n) { + for (i = c; i < n; i++) { + if (buf[i] == '<' || buf[i] == '>' || buf[i] == '&') { + break; + } + } + ch = buf[i]; + buf[i] = '\0'; + ap_rputs(&buf[c], r); + if (ch == '<') { + ap_rputs("<", r); + } + else if (ch == '>') { + ap_rputs(">", r); + } + else if (ch == '&') { + ap_rputs("&", r); + } + c = i + 1; + } + } + ap_rputs("</pre>\n", r); +} + +/* + * Handle the preamble through the H1 tag line, inclusive. Locate + * the file with a subrequests. Process text/html documents by actually + * running the subrequest; text/xxx documents get copied verbatim, + * and any other content type is ignored. This means that a non-text + * document (such as HEADER.gif) might get multiviewed as the result + * instead of a text document, meaning nothing will be displayed, but + * oh well. + */ +static void emit_head(request_rec *r, char *header_fname, int suppress_amble, + int emit_xhtml, char *title) +{ + autoindex_config_rec *d; + apr_table_t *hdrs = r->headers_in; + apr_file_t *f = NULL; + request_rec *rr = NULL; + int emit_amble = 1; + int emit_H1 = 1; + const char *r_accept; + const char *r_accept_enc; + + /* + * If there's a header file, send a subrequest to look for it. If it's + * found and html do the subrequest, otherwise handle it + */ + r_accept = apr_table_get(hdrs, "Accept"); + r_accept_enc = apr_table_get(hdrs, "Accept-Encoding"); + apr_table_setn(hdrs, "Accept", "text/html, text/plain"); + apr_table_unset(hdrs, "Accept-Encoding"); + + + if ((header_fname != NULL) && r->args) { + header_fname = apr_pstrcat(r->pool, header_fname, "?", r->args, NULL); + } + + if ((header_fname != NULL) + && (rr = ap_sub_req_lookup_uri(header_fname, r, r->output_filters)) + && (rr->status == HTTP_OK) + && (rr->filename != NULL) + && (rr->finfo.filetype == APR_REG)) { + /* + * Check for the two specific cases we allow: text/html and + * text/anything-else. The former is allowed to be processed for + * SSIs. + */ + if (rr->content_type != NULL) { + if (response_is_html(rr)) { + ap_filter_t *f; + /* Hope everything will work... */ + emit_amble = 0; + emit_H1 = 0; + + if (! suppress_amble) { + emit_preamble(r, emit_xhtml, title); + } + /* This is a hack, but I can't find any better way to do this. + * The problem is that we have already created the sub-request, + * but we just inserted the OLD_WRITE filter, and the + * sub-request needs to pass its data through the OLD_WRITE + * filter, or things go horribly wrong (missing data, data in + * the wrong order, etc). To fix it, if you create a + * sub-request and then insert the OLD_WRITE filter before you + * run the request, you need to make sure that the sub-request + * data goes through the OLD_WRITE filter. Just steal this + * code. The long-term solution is to remove the ap_r* + * functions. + */ + for (f=rr->output_filters; + f->frec != ap_subreq_core_filter_handle; f = f->next); + f->next = r->output_filters; + + /* + * If there's a problem running the subrequest, display the + * preamble if we didn't do it before -- the header file + * didn't get displayed. + */ + if (ap_run_sub_req(rr) != OK) { + /* It didn't work */ + emit_amble = suppress_amble; + emit_H1 = 1; + } + } + else if (!ap_cstr_casecmpn("text/", rr->content_type, 5)) { + /* + * If we can open the file, prefix it with the preamble + * regardless; since we'll be sending a <pre> block around + * the file's contents, any HTML header it had won't end up + * where it belongs. + */ + if (apr_file_open(&f, rr->filename, APR_READ, + APR_OS_DEFAULT, r->pool) == APR_SUCCESS) { + emit_preamble(r, emit_xhtml, title); + emit_amble = 0; + do_emit_plain(r, f); + apr_file_close(f); + emit_H1 = 0; + } + } + } + } + + if (r_accept) { + apr_table_setn(hdrs, "Accept", r_accept); + } + else { + apr_table_unset(hdrs, "Accept"); + } + + if (r_accept_enc) { + apr_table_setn(hdrs, "Accept-Encoding", r_accept_enc); + } + + if (emit_amble) { + emit_preamble(r, emit_xhtml, title); + } + + d = (autoindex_config_rec *) ap_get_module_config(r->per_dir_config, &autoindex_module); + + if (emit_H1) { + if (d->style_sheet != NULL) { + /* Insert style id if stylesheet used */ + ap_rvputs(r, " <h1 id=\"indextitle\">Index of ", title, "</h1>\n", NULL); + } else { + ap_rvputs(r, "<h1>Index of ", title, "</h1>\n", NULL); + } + } + if (rr != NULL) { + ap_destroy_sub_req(rr); + } +} + + +/* + * Handle the Readme file through the postamble, inclusive. Locate + * the file with a subrequests. Process text/html documents by actually + * running the subrequest; text/xxx documents get copied verbatim, + * and any other content type is ignored. This means that a non-text + * document (such as FOOTER.gif) might get multiviewed as the result + * instead of a text document, meaning nothing will be displayed, but + * oh well. + */ +static void emit_tail(request_rec *r, char *readme_fname, int suppress_amble) +{ + apr_file_t *f = NULL; + request_rec *rr = NULL; + int suppress_post = 0; + int suppress_sig = 0; + + /* + * If there's a readme file, send a subrequest to look for it. If it's + * found and a text file, handle it -- otherwise fall through and + * pretend there's nothing there. + */ + if ((readme_fname != NULL) + && (rr = ap_sub_req_lookup_uri(readme_fname, r, r->output_filters)) + && (rr->status == HTTP_OK) + && (rr->filename != NULL) + && rr->finfo.filetype == APR_REG) { + /* + * Check for the two specific cases we allow: text/html and + * text/anything-else. The former is allowed to be processed for + * SSIs. + */ + if (rr->content_type != NULL) { + if (response_is_html(rr)) { + ap_filter_t *f; + for (f=rr->output_filters; + f->frec != ap_subreq_core_filter_handle; f = f->next); + f->next = r->output_filters; + + + if (ap_run_sub_req(rr) == OK) { + /* worked... */ + suppress_sig = 1; + suppress_post = suppress_amble; + } + } + else if (!ap_cstr_casecmpn("text/", rr->content_type, 5)) { + /* + * If we can open the file, suppress the signature. + */ + if (apr_file_open(&f, rr->filename, APR_READ, + APR_OS_DEFAULT, r->pool) == APR_SUCCESS) { + do_emit_plain(r, f); + apr_file_close(f); + suppress_sig = 1; + } + } + } + } + + if (!suppress_sig) { + ap_rputs(ap_psignature("", r), r); + } + if (!suppress_post) { + ap_rputs("</body></html>\n", r); + } + if (rr != NULL) { + ap_destroy_sub_req(rr); + } +} + + +static char *find_title(request_rec *r) +{ + char titlebuf[MAX_STRING_LEN], *find = "<title>"; + apr_file_t *thefile = NULL; + int x, y, p; + apr_size_t n; + + if (r->status != HTTP_OK) { + return NULL; + } + if ((r->content_type != NULL) + && (response_is_html(r) + || !strcmp(r->content_type, INCLUDES_MAGIC_TYPE)) + && !r->content_encoding) { + if (apr_file_open(&thefile, r->filename, APR_READ, + APR_OS_DEFAULT, r->pool) != APR_SUCCESS) { + return NULL; + } + n = sizeof(char) * (MAX_STRING_LEN - 1); + apr_file_read(thefile, titlebuf, &n); + if (n == 0) { + apr_file_close(thefile); + return NULL; + } + titlebuf[n] = '\0'; + for (x = 0, p = 0; titlebuf[x]; x++) { + if (apr_tolower(titlebuf[x]) == find[p]) { + if (!find[++p]) { + if ((p = ap_ind(&titlebuf[++x], '<')) != -1) { + titlebuf[x + p] = '\0'; + } + /* Scan for line breaks for Tanmoy's secretary */ + for (y = x; titlebuf[y]; y++) { + if ((titlebuf[y] == CR) || (titlebuf[y] == LF)) { + if (y == x) { + x++; + } + else { + titlebuf[y] = ' '; + } + } + } + apr_file_close(thefile); + return apr_pstrdup(r->pool, &titlebuf[x]); + } + } + else { + p = 0; + } + } + apr_file_close(thefile); + } + return NULL; +} + +static struct ent *make_parent_entry(apr_int32_t autoindex_opts, + autoindex_config_rec *d, + request_rec *r, char keyid, + char direction) +{ + struct ent *p = (struct ent *) apr_pcalloc(r->pool, sizeof(struct ent)); + char *testpath; + /* + * p->name is now the true parent URI. + * testpath is a crafted lie, so that the syntax '/some/..' + * (or simply '..')be used to describe 'up' from '/some/' + * when processeing IndexIgnore, and Icon|Alt|Desc configs. + */ + + /* The output has always been to the parent. Don't make ourself + * our own parent (worthless cyclical reference). + */ + if (!(p->name = ap_make_full_path(r->pool, r->uri, "../"))) { + return (NULL); + } + if (!ap_normalize_path(p->name, AP_NORMALIZE_ALLOW_RELATIVE | + AP_NORMALIZE_NOT_ABOVE_ROOT) + || p->name[0] == '\0') { + return (NULL); + } + + /* IndexIgnore has always compared "/thispath/.." */ + testpath = ap_make_full_path(r->pool, r->filename, ".."); + if (ignore_entry(d, testpath)) { + return (NULL); + } + + p->size = -1; + p->lm = -1; + p->key = apr_toupper(keyid); + p->ascending = (apr_toupper(direction) == D_ASCENDING); + p->version_sort = autoindex_opts & VERSION_SORT; + if (autoindex_opts & FANCY_INDEXING) { + if (!(p->icon = find_default_icon(d, testpath))) { + p->icon = find_default_icon(d, "^^DIRECTORY^^"); + } + if (!(p->alt = find_default_alt(d, testpath))) { + if (!(p->alt = find_default_alt(d, "^^DIRECTORY^^"))) { + /* Special alt text for parent dir to distinguish it from other directories + this is essential when trying to style this dir entry via AddAltClass */ + p->alt = "PARENTDIR"; + } + } + p->desc = find_desc(d, testpath); + } + return p; +} + +static struct ent *make_autoindex_entry(const apr_finfo_t *dirent, + int autoindex_opts, + autoindex_config_rec *d, + request_rec *r, char keyid, + char direction, + const char *pattern) +{ + request_rec *rr; + struct ent *p; + int show_forbidden = 0; + + /* Dot is ignored, Parent is handled by make_parent_entry() */ + if ((dirent->name[0] == '.') && (!dirent->name[1] + || ((dirent->name[1] == '.') && !dirent->name[2]))) + return (NULL); + + /* + * On some platforms, the match must be case-blind. This is really + * a factor of the filesystem involved, but we can't detect that + * reliably - so we have to granularise at the OS level. + */ + if (pattern && (apr_fnmatch(pattern, dirent->name, + APR_FNM_NOESCAPE | APR_FNM_PERIOD +#ifdef CASE_BLIND_FILESYSTEM + | APR_FNM_CASE_BLIND +#endif + ) + != APR_SUCCESS)) { + return (NULL); + } + + if (ignore_entry(d, ap_make_full_path(r->pool, + r->filename, dirent->name))) { + return (NULL); + } + + if (!(rr = ap_sub_req_lookup_dirent(dirent, r, AP_SUBREQ_NO_ARGS, NULL))) { + return (NULL); + } + + if ((autoindex_opts & SHOW_FORBIDDEN) + && (rr->status == HTTP_UNAUTHORIZED || rr->status == HTTP_FORBIDDEN)) { + show_forbidden = 1; + } + + if ((rr->finfo.filetype != APR_DIR && rr->finfo.filetype != APR_REG) + || !(rr->status == OK || ap_is_HTTP_SUCCESS(rr->status) + || ap_is_HTTP_REDIRECT(rr->status) + || show_forbidden == 1)) { + ap_destroy_sub_req(rr); + return (NULL); + } + + p = (struct ent *) apr_pcalloc(r->pool, sizeof(struct ent)); + if (dirent->filetype == APR_DIR) { + p->name = apr_pstrcat(r->pool, dirent->name, "/", NULL); + } + else { + p->name = apr_pstrdup(r->pool, dirent->name); + } + p->size = -1; + p->icon = NULL; + p->alt = NULL; + p->desc = NULL; + p->lm = -1; + p->isdir = 0; + p->key = apr_toupper(keyid); + p->ascending = (apr_toupper(direction) == D_ASCENDING); + p->version_sort = !!(autoindex_opts & VERSION_SORT); + p->ignore_case = !!(autoindex_opts & IGNORE_CASE); + + if (autoindex_opts & (FANCY_INDEXING | TABLE_INDEXING)) { + p->lm = rr->finfo.mtime; + if (dirent->filetype == APR_DIR) { + if (autoindex_opts & FOLDERS_FIRST) { + p->isdir = 1; + } + rr->filename = ap_make_dirstr_parent (rr->pool, rr->filename); + + /* omit the trailing slash (1.3 compat) */ + rr->filename[strlen(rr->filename) - 1] = '\0'; + + if (!(p->icon = find_icon(d, rr, 1))) { + p->icon = find_default_icon(d, "^^DIRECTORY^^"); + } + if (!(p->alt = find_alt(d, rr, 1))) { + if (!(p->alt = find_default_alt(d, "^^DIRECTORY^^"))) { + p->alt = "DIR"; + } + } + } + else { + p->icon = find_icon(d, rr, 0); + p->alt = find_alt(d, rr, 0); + p->size = rr->finfo.size; + } + + p->desc = find_desc(d, rr->filename); + + if ((!p->desc) && (autoindex_opts & SCAN_HTML_TITLES)) { + p->desc = apr_pstrdup(r->pool, find_title(rr)); + } + } + ap_destroy_sub_req(rr); + /* + * We don't need to take any special action for the file size key. + * If we did, it would go here. + */ + if (keyid == K_LAST_MOD) { + if (p->lm < 0) { + p->lm = 0; + } + } + return (p); +} + +static char *terminate_description(autoindex_config_rec *d, char *desc, + apr_int32_t autoindex_opts, int desc_width) +{ + int maxsize = desc_width; + int x; + + /* + * If there's no DescriptionWidth in effect, default to the old + * behaviour of adjusting the description size depending upon + * what else is being displayed. Otherwise, stick with the + * setting. + */ + if (d->desc_adjust == K_UNSET) { + if (autoindex_opts & SUPPRESS_ICON) { + maxsize += 6; + } + if (autoindex_opts & SUPPRESS_LAST_MOD) { + maxsize += 19; + } + if (autoindex_opts & SUPPRESS_SIZE) { + maxsize += 7; + } + } + for (x = 0; desc[x] && ((maxsize > 0) || (desc[x] == '<')); x++) { + if (desc[x] == '<') { + while (desc[x] != '>') { + if (!desc[x]) { + maxsize = 0; + break; + } + ++x; + } + } + else if (desc[x] == '&') { + /* entities like ä count as one character */ + --maxsize; + for ( ; desc[x] != ';'; ++x) { + if (desc[x] == '\0') { + maxsize = 0; + break; + } + } + } + else { + --maxsize; + } + } + if (!maxsize && desc[x] != '\0') { + desc[x - 1] = '>'; /* Grump. */ + desc[x] = '\0'; /* Double Grump! */ + } + return desc; +} + +/* + * Emit the anchor for the specified field. If a field is the key for the + * current request, the link changes its meaning to reverse the order when + * selected again. Non-active fields always start in ascending order. + */ +static void emit_link(request_rec *r, const char *anchor, char column, + char curkey, char curdirection, + const char *colargs, int nosort) +{ + if (!nosort) { + char qvalue[9]; + + qvalue[0] = '?'; + qvalue[1] = 'C'; + qvalue[2] = '='; + qvalue[3] = column; + qvalue[4] = ';'; + qvalue[5] = 'O'; + qvalue[6] = '='; + /* reverse? */ + qvalue[7] = ((curkey == column) && (curdirection == D_ASCENDING)) + ? D_DESCENDING : D_ASCENDING; + qvalue[8] = '\0'; + ap_rvputs(r, "<a href=\"", qvalue, colargs ? colargs : "", + "\">", anchor, "</a>", NULL); + } + else { + ap_rputs(anchor, r); + } +} + +static void output_directories(struct ent **ar, int n, + autoindex_config_rec *d, request_rec *r, + apr_int32_t autoindex_opts, char keyid, + char direction, const char *colargs) +{ + int x; + apr_size_t rv; + char *tp; + int static_columns = !!(autoindex_opts & SUPPRESS_COLSORT); + apr_pool_t *scratch; + int name_width; + int desc_width; + char *datetime_format; + char *name_scratch; + char *pad_scratch; + char *breakrow = ""; + + apr_pool_create(&scratch, r->pool); + apr_pool_tag(scratch, "autoindex_scratch"); + + name_width = d->name_width; + desc_width = d->desc_width; + datetime_format = d->datetime_format ? d->datetime_format : "%Y-%m-%d %H:%M"; + + if ((autoindex_opts & (FANCY_INDEXING | TABLE_INDEXING)) + == FANCY_INDEXING) { + if (d->name_adjust == K_ADJUST) { + for (x = 0; x < n; x++) { + int t = strlen(ar[x]->name); + if (t > name_width) { + name_width = t; + } + } + } + + if (d->desc_adjust == K_ADJUST) { + for (x = 0; x < n; x++) { + if (ar[x]->desc != NULL) { + int t = strlen(ar[x]->desc); + if (t > desc_width) { + desc_width = t; + } + } + } + } + } + name_scratch = apr_palloc(r->pool, name_width + 1); + pad_scratch = apr_palloc(r->pool, name_width + 1); + memset(pad_scratch, ' ', name_width); + pad_scratch[name_width] = '\0'; + + if (autoindex_opts & TABLE_INDEXING) { + int cols = 1; + if (d->style_sheet != NULL) { + /* Emit table with style id */ + ap_rputs(" <table id=\"indexlist\">\n <tr class=\"indexhead\">", r); + } else { + ap_rputs(" <table>\n <tr>", r); + } + if (!(autoindex_opts & SUPPRESS_ICON)) { + ap_rvputs(r, "<th", (d->style_sheet != NULL) ? " class=\"indexcolicon\">" : " valign=\"top\">", NULL); + if ((tp = find_default_icon(d, "^^BLANKICON^^"))) { + ap_rvputs(r, "<img src=\"", ap_escape_html(scratch, tp), + "\" alt=\"[ICO]\"", NULL); + if (d->icon_width) { + ap_rprintf(r, " width=\"%d\"", d->icon_width); + } + if (d->icon_height) { + ap_rprintf(r, " height=\"%d\"", d->icon_height); + } + + if (autoindex_opts & EMIT_XHTML) { + ap_rputs(" /", r); + } + ap_rputs("></th>", r); + } + else { + ap_rputs(" </th>", r); + } + + ++cols; + } + ap_rvputs(r, "<th", (d->style_sheet != NULL) ? " class=\"indexcolname\">" : ">", NULL); + emit_link(r, "Name", K_NAME, keyid, direction, + colargs, static_columns); + if (!(autoindex_opts & SUPPRESS_LAST_MOD)) { + ap_rvputs(r, "</th><th", (d->style_sheet != NULL) ? " class=\"indexcollastmod\">" : ">", NULL); + emit_link(r, "Last modified", K_LAST_MOD, keyid, direction, + colargs, static_columns); + ++cols; + } + if (!(autoindex_opts & SUPPRESS_SIZE)) { + ap_rvputs(r, "</th><th", (d->style_sheet != NULL) ? " class=\"indexcolsize\">" : ">", NULL); + emit_link(r, "Size", K_SIZE, keyid, direction, + colargs, static_columns); + ++cols; + } + if (!(autoindex_opts & SUPPRESS_DESC)) { + ap_rvputs(r, "</th><th", (d->style_sheet != NULL) ? " class=\"indexcoldesc\">" : ">", NULL); + emit_link(r, "Description", K_DESC, keyid, direction, + colargs, static_columns); + ++cols; + } + if (!(autoindex_opts & SUPPRESS_RULES)) { + breakrow = apr_psprintf(r->pool, + " <tr%s><th colspan=\"%d\">" + "<hr%s></th></tr>\n", + (d->style_sheet != NULL) ? " class=\"indexbreakrow\"" : "", + cols, + (autoindex_opts & EMIT_XHTML) ? " /" : ""); + } + ap_rvputs(r, "</th></tr>\n", breakrow, NULL); + } + else if (autoindex_opts & FANCY_INDEXING) { + ap_rputs("<pre>", r); + if (!(autoindex_opts & SUPPRESS_ICON)) { + if ((tp = find_default_icon(d, "^^BLANKICON^^"))) { + ap_rvputs(r, "<img src=\"", ap_escape_html(scratch, tp), + "\" alt=\"Icon \"", NULL); + if (d->icon_width) { + ap_rprintf(r, " width=\"%d\"", d->icon_width); + } + if (d->icon_height) { + ap_rprintf(r, " height=\"%d\"", d->icon_height); + } + + if (autoindex_opts & EMIT_XHTML) { + ap_rputs(" /", r); + } + ap_rputs("> ", r); + } + else { + ap_rputs(" ", r); + } + } + emit_link(r, "Name", K_NAME, keyid, direction, + colargs, static_columns); + ap_rputs(pad_scratch + 4, r); + /* + * Emit the guaranteed-at-least-one-space-between-columns byte. + */ + ap_rputs(" ", r); + if (!(autoindex_opts & SUPPRESS_LAST_MOD)) { + emit_link(r, "Last modified", K_LAST_MOD, keyid, direction, + colargs, static_columns); + ap_rputs(" ", r); + } + if (!(autoindex_opts & SUPPRESS_SIZE)) { + emit_link(r, "Size", K_SIZE, keyid, direction, + colargs, static_columns); + ap_rputs(" ", r); + } + if (!(autoindex_opts & SUPPRESS_DESC)) { + emit_link(r, "Description", K_DESC, keyid, direction, + colargs, static_columns); + } + if (!(autoindex_opts & SUPPRESS_RULES)) { + ap_rputs("<hr", r); + if (autoindex_opts & EMIT_XHTML) { + ap_rputs(" /", r); + } + ap_rputs(">", r); + } + else { + ap_rputc('\n', r); + } + } + else { + ap_rputs("<ul>", r); + } + + for (x = 0; x < n; x++) { + char *anchor, *t, *t2; + int nwidth; + + apr_pool_clear(scratch); + + t = ar[x]->name; + anchor = ap_escape_html(scratch, ap_os_escape_path(scratch, t, 0)); + + if (!x && t[0] == '/') { + t2 = "Parent Directory"; + } + else { + t2 = t; + } + + if (autoindex_opts & TABLE_INDEXING) { + /* Even/Odd rows for IndexStyleSheet */ + if (d->style_sheet != NULL) { + if (ar[x]->alt && (autoindex_opts & ADDALTCLASS)) { + /* Include alt text in class name, distinguish between odd and even rows */ + char *altclass = apr_pstrdup(scratch, ar[x]->alt); + ap_str_tolower(altclass); + ap_rvputs(r, " <tr class=\"", ( x & 0x1) ? "odd-" : "even-", altclass, "\">", NULL); + } else { + /* Distinguish between odd and even rows */ + ap_rvputs(r, " <tr class=\"", ( x & 0x1) ? "odd" : "even", "\">", NULL); + } + } else { + ap_rputs("<tr>", r); + } + + if (!(autoindex_opts & SUPPRESS_ICON)) { + ap_rvputs(r, "<td", (d->style_sheet != NULL) ? " class=\"indexcolicon\">" : " valign=\"top\">", NULL); + if (autoindex_opts & ICONS_ARE_LINKS) { + ap_rvputs(r, "<a href=\"", anchor, "\">", NULL); + } + if ((ar[x]->icon) || d->default_icon) { + ap_rvputs(r, "<img src=\"", + ap_escape_html(scratch, + ar[x]->icon ? ar[x]->icon + : d->default_icon), + "\" alt=\"[", (ar[x]->alt ? ar[x]->alt : " "), + "]\"", NULL); + if (d->icon_width) { + ap_rprintf(r, " width=\"%d\"", d->icon_width); + } + if (d->icon_height) { + ap_rprintf(r, " height=\"%d\"", d->icon_height); + } + + if (autoindex_opts & EMIT_XHTML) { + ap_rputs(" /", r); + } + ap_rputs(">", r); + } + else { + ap_rputs(" ", r); + } + if (autoindex_opts & ICONS_ARE_LINKS) { + ap_rputs("</a></td>", r); + } + else { + ap_rputs("</td>", r); + } + } + if (d->name_adjust == K_ADJUST) { + ap_rvputs(r, "<td", (d->style_sheet != NULL) ? " class=\"indexcolname\">" : ">", "<a href=\"", anchor, "\">", + ap_escape_html(scratch, t2), "</a>", NULL); + } + else { + nwidth = strlen(t2); + if (nwidth > name_width) { + memcpy(name_scratch, t2, name_width - 3); + name_scratch[name_width - 3] = '.'; + name_scratch[name_width - 2] = '.'; + name_scratch[name_width - 1] = '>'; + name_scratch[name_width] = 0; + t2 = name_scratch; + nwidth = name_width; + } + ap_rvputs(r, "<td", (d->style_sheet != NULL) ? " class=\"indexcolname\">" : ">", "<a href=\"", anchor, "\">", + ap_escape_html(scratch, t2), + "</a>", pad_scratch + nwidth, NULL); + } + if (!(autoindex_opts & SUPPRESS_LAST_MOD)) { + if (ar[x]->lm != -1) { + char time_str[32]; + apr_time_exp_t ts; + apr_time_exp_lt(&ts, ar[x]->lm); + apr_strftime(time_str, &rv, sizeof(time_str), + datetime_format, + &ts); + ap_rvputs(r, "</td><td", (d->style_sheet != NULL) ? " class=\"indexcollastmod\">" : " align=\"right\">", time_str, " ", NULL); + } + else { + ap_rvputs(r, "</td><td", (d->style_sheet != NULL) ? " class=\"indexcollastmod\"> " : "> ", NULL); + } + } + if (!(autoindex_opts & SUPPRESS_SIZE)) { + char buf[5]; + ap_rvputs(r, "</td><td", (d->style_sheet != NULL) ? " class=\"indexcolsize\">" : " align=\"right\">", + apr_strfsize(ar[x]->size, buf), NULL); + } + if (!(autoindex_opts & SUPPRESS_DESC)) { + if (ar[x]->desc) { + if (d->desc_adjust == K_ADJUST) { + ap_rvputs(r, "</td><td", (d->style_sheet != NULL) ? " class=\"indexcoldesc\">" : ">", ar[x]->desc, NULL); + } + else { + ap_rvputs(r, "</td><td", (d->style_sheet != NULL) ? " class=\"indexcoldesc\">" : ">", + terminate_description(d, ar[x]->desc, + autoindex_opts, + desc_width), NULL); + } + } + else { + ap_rvputs(r, "</td><td", (d->style_sheet != NULL) ? " class=\"indexcoldesc\">" : ">", " ", NULL); + } + } + ap_rputs("</td></tr>\n", r); + } + else if (autoindex_opts & FANCY_INDEXING) { + if (!(autoindex_opts & SUPPRESS_ICON)) { + if (autoindex_opts & ICONS_ARE_LINKS) { + ap_rvputs(r, "<a href=\"", anchor, "\">", NULL); + } + if ((ar[x]->icon) || d->default_icon) { + ap_rvputs(r, "<img src=\"", + ap_escape_html(scratch, + ar[x]->icon ? ar[x]->icon + : d->default_icon), + "\" alt=\"[", (ar[x]->alt ? ar[x]->alt : " "), + "]\"", NULL); + if (d->icon_width) { + ap_rprintf(r, " width=\"%d\"", d->icon_width); + } + if (d->icon_height) { + ap_rprintf(r, " height=\"%d\"", d->icon_height); + } + + if (autoindex_opts & EMIT_XHTML) { + ap_rputs(" /", r); + } + ap_rputs(">", r); + } + else { + ap_rputs(" ", r); + } + if (autoindex_opts & ICONS_ARE_LINKS) { + ap_rputs("</a> ", r); + } + else { + ap_rputc(' ', r); + } + } + nwidth = strlen(t2); + if (nwidth > name_width) { + memcpy(name_scratch, t2, name_width - 3); + name_scratch[name_width - 3] = '.'; + name_scratch[name_width - 2] = '.'; + name_scratch[name_width - 1] = '>'; + name_scratch[name_width] = 0; + t2 = name_scratch; + nwidth = name_width; + } + ap_rvputs(r, "<a href=\"", anchor, "\">", + ap_escape_html(scratch, t2), + "</a>", pad_scratch + nwidth, NULL); + /* + * The blank before the storm.. er, before the next field. + */ + ap_rputs(" ", r); + if (!(autoindex_opts & SUPPRESS_LAST_MOD)) { + if (ar[x]->lm != -1) { + char time_str[32]; + apr_time_exp_t ts; + apr_time_exp_lt(&ts, ar[x]->lm); + apr_strftime(time_str, &rv, sizeof(time_str), + datetime_format, + &ts); + ap_rvputs(r, time_str, " ", NULL); + } + else { + /* Length="1975-04-07 01:23 " (default in 2.4 and later) or + * Length="07-Apr-1975 01:24 ". (2.2 and UseOldDateFormat) + * See 'datetime_format' above. + */ + ap_rputs(" ", r); + } + } + if (!(autoindex_opts & SUPPRESS_SIZE)) { + char buf[5]; + ap_rputs(apr_strfsize(ar[x]->size, buf), r); + ap_rputs(" ", r); + } + if (!(autoindex_opts & SUPPRESS_DESC)) { + if (ar[x]->desc) { + ap_rputs(terminate_description(d, ar[x]->desc, + autoindex_opts, + desc_width), r); + } + } + ap_rputc('\n', r); + } + else { + ap_rvputs(r, "<li><a href=\"", anchor, "\"> ", + ap_escape_html(scratch, t2), + "</a></li>\n", NULL); + } + } + if (autoindex_opts & TABLE_INDEXING) { + ap_rvputs(r, breakrow, "</table>\n", NULL); + } + else if (autoindex_opts & FANCY_INDEXING) { + if (!(autoindex_opts & SUPPRESS_RULES)) { + ap_rputs("<hr", r); + if (autoindex_opts & EMIT_XHTML) { + ap_rputs(" /", r); + } + ap_rputs("></pre>\n", r); + } + else { + ap_rputs("</pre>\n", r); + } + } + else { + ap_rputs("</ul>\n", r); + } +} + +/* + * Compare two file entries according to the sort criteria. The return + * is essentially a signum function value. + */ + +static int dsortf(struct ent **e1, struct ent **e2) +{ + struct ent *c1; + struct ent *c2; + int result = 0; + + /* + * First, see if either of the entries is for the parent directory. + * If so, that *always* sorts lower than anything else. + */ + if ((*e1)->name[0] == '/') { + return -1; + } + if ((*e2)->name[0] == '/') { + return 1; + } + /* + * Now see if one's a directory and one isn't, if we're set + * isdir for FOLDERS_FIRST. + */ + if ((*e1)->isdir != (*e2)->isdir) { + return (*e1)->isdir ? -1 : 1; + } + /* + * All of our comparisons will be of the c1 entry against the c2 one, + * so assign them appropriately to take care of the ordering. + */ + if ((*e1)->ascending) { + c1 = *e1; + c2 = *e2; + } + else { + c1 = *e2; + c2 = *e1; + } + + switch (c1->key) { + case K_LAST_MOD: + if (c1->lm > c2->lm) { + return 1; + } + else if (c1->lm < c2->lm) { + return -1; + } + break; + case K_SIZE: + if (c1->size > c2->size) { + return 1; + } + else if (c1->size < c2->size) { + return -1; + } + break; + case K_DESC: + if (c1->version_sort) { + result = apr_strnatcmp(c1->desc ? c1->desc : "", + c2->desc ? c2->desc : ""); + } + else { + result = strcmp(c1->desc ? c1->desc : "", + c2->desc ? c2->desc : ""); + } + if (result) { + return result; + } + break; + } + + /* names may identical when treated case-insensitively, + * so always fall back on strcmp() flavors to put entries + * in deterministic order. This means that 'ABC' and 'abc' + * will always appear in the same order, rather than + * variably between 'ABC abc' and 'abc ABC' order. + */ + + if (c1->version_sort) { + if (c1->ignore_case) { + result = apr_strnatcasecmp (c1->name, c2->name); + } + if (!result) { + result = apr_strnatcmp(c1->name, c2->name); + } + } + + /* The names may be identical in respects other than + * filename case when strnatcmp is used above, so fall back + * to strcmp on conflicts so that fn1.01.zzz and fn1.1.zzz + * are also sorted in a deterministic order. + */ + + if (!result && c1->ignore_case) { + result = strcasecmp (c1->name, c2->name); + } + + if (!result) { + result = strcmp (c1->name, c2->name); + } + + return result; +} + + +static int index_directory(request_rec *r, + autoindex_config_rec *autoindex_conf) +{ + char *title_name = ap_escape_html(r->pool, r->uri); + char *title_endp; + char *name = r->filename; + char *pstring = NULL; + apr_finfo_t dirent; + apr_dir_t *thedir; + apr_status_t status; + int num_ent = 0, x; + struct ent *head, *p; + struct ent **ar = NULL; + const char *qstring; + apr_int32_t autoindex_opts = autoindex_conf->opts; + char keyid; + char direction; + char *colargs; + char *fullpath; + apr_size_t dirpathlen; + char *ctype = "text/html"; + char *charset; + + if ((status = apr_dir_open(&thedir, name, r->pool)) != APR_SUCCESS) { + ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r, APLOGNO(01275) + "Can't open directory for index: %s", r->filename); + return HTTP_FORBIDDEN; + } + + if (autoindex_conf->ctype) { + ctype = autoindex_conf->ctype; + } + if (autoindex_conf->charset) { + charset = autoindex_conf->charset; + } + else { +#if APR_HAS_UNICODE_FS + charset = "UTF-8"; +#else + charset = "ISO-8859-1"; +#endif + } + if (*charset) { + ap_set_content_type(r, apr_pstrcat(r->pool, ctype, ";charset=", + charset, NULL)); + } + else { + ap_set_content_type(r, ctype); + } + + if (autoindex_opts & TRACK_MODIFIED) { + ap_update_mtime(r, r->finfo.mtime); + ap_set_last_modified(r); + ap_set_etag(r); + } + if (r->header_only) { + apr_dir_close(thedir); + return 0; + } + + /* + * If there is no specific ordering defined for this directory, + * default to ascending by filename. + */ + keyid = autoindex_conf->default_keyid + ? autoindex_conf->default_keyid : K_NAME; + direction = autoindex_conf->default_direction + ? autoindex_conf->default_direction : D_ASCENDING; + + /* + * Figure out what sort of indexing (if any) we're supposed to use. + * + * If no QUERY_STRING was specified or client query strings have been + * explicitly disabled. + * If we are ignoring the client, suppress column sorting as well. + */ + if (autoindex_opts & IGNORE_CLIENT) { + qstring = NULL; + autoindex_opts |= SUPPRESS_COLSORT; + colargs = ""; + } + else { + char fval[5], vval[5], *ppre = "", *epattern = ""; + fval[0] = '\0'; vval[0] = '\0'; + qstring = r->args; + + while (qstring && *qstring) { + + /* C= First Sort key Column (N, M, S, D) */ + if ( qstring[0] == 'C' && qstring[1] == '=' + && qstring[2] && strchr(K_VALID, qstring[2]) + && ( qstring[3] == '&' || qstring[3] == ';' + || !qstring[3])) { + keyid = qstring[2]; + qstring += qstring[3] ? 4 : 3; + } + + /* O= Sort order (A, D) */ + else if ( qstring[0] == 'O' && qstring[1] == '=' + && ( (qstring[2] == D_ASCENDING) + || (qstring[2] == D_DESCENDING)) + && ( qstring[3] == '&' || qstring[3] == ';' + || !qstring[3])) { + direction = qstring[2]; + qstring += qstring[3] ? 4 : 3; + } + + /* F= Output Format (0 plain, 1 fancy (pre), 2 table) */ + else if ( qstring[0] == 'F' && qstring[1] == '=' + && qstring[2] && strchr("012", qstring[2]) + && ( qstring[3] == '&' || qstring[3] == ';' + || !qstring[3])) { + if (qstring[2] == '0') { + autoindex_opts &= ~(FANCY_INDEXING | TABLE_INDEXING); + } + else if (qstring[2] == '1') { + autoindex_opts = (autoindex_opts | FANCY_INDEXING) + & ~TABLE_INDEXING; + } + else if (qstring[2] == '2') { + autoindex_opts |= FANCY_INDEXING | TABLE_INDEXING; + } + strcpy(fval, ";F= "); + fval[3] = qstring[2]; + qstring += qstring[3] ? 4 : 3; + } + + /* V= Version sort (0, 1) */ + else if ( qstring[0] == 'V' && qstring[1] == '=' + && (qstring[2] == '0' || qstring[2] == '1') + && ( qstring[3] == '&' || qstring[3] == ';' + || !qstring[3])) { + if (qstring[2] == '0') { + autoindex_opts &= ~VERSION_SORT; + } + else if (qstring[2] == '1') { + autoindex_opts |= VERSION_SORT; + } + strcpy(vval, ";V= "); + vval[3] = qstring[2]; + qstring += qstring[3] ? 4 : 3; + } + + /* P= wildcard pattern (*.foo) */ + else if (qstring[0] == 'P' && qstring[1] == '=') { + const char *eos = qstring += 2; /* for efficiency */ + + while (*eos && *eos != '&' && *eos != ';') { + ++eos; + } + + if (eos == qstring) { + pstring = NULL; + } + else { + pstring = apr_pstrndup(r->pool, qstring, eos - qstring); + if (ap_unescape_url(pstring) != OK) { + /* ignore the pattern, if it's bad. */ + pstring = NULL; + } + else { + ppre = ";P="; + /* be correct */ + epattern = ap_escape_uri(r->pool, pstring); + } + } + + if (*eos && *++eos) { + qstring = eos; + } + else { + qstring = NULL; + } + } + + /* Syntax error? Ignore the remainder! */ + else { + qstring = NULL; + } + } + colargs = apr_pstrcat(r->pool, fval, vval, ppre, epattern, NULL); + } + + /* Spew HTML preamble */ + title_endp = title_name + strlen(title_name) - 1; + + while (title_endp > title_name && *title_endp == '/') { + *title_endp-- = '\0'; + } + + emit_head(r, autoindex_conf->header, + autoindex_opts & SUPPRESS_PREAMBLE, + autoindex_opts & EMIT_XHTML, title_name); + + /* + * Since we don't know how many dir. entries there are, put them into a + * linked list and then arrayificate them so qsort can use them. + */ + head = NULL; + p = make_parent_entry(autoindex_opts, autoindex_conf, r, keyid, direction); + if (p != NULL) { + p->next = head; + head = p; + num_ent++; + } + fullpath = apr_palloc(r->pool, APR_PATH_MAX); + dirpathlen = strlen(name); + memcpy(fullpath, name, dirpathlen); + + do { + status = apr_dir_read(&dirent, APR_FINFO_MIN | APR_FINFO_NAME, thedir); + if (APR_STATUS_IS_INCOMPLETE(status)) { + continue; /* ignore un-stat()able files */ + } + else if (status != APR_SUCCESS) { + break; + } + + /* We want to explode symlinks here. */ + if (dirent.filetype == APR_LNK) { + const char *savename; + apr_finfo_t fi; + /* We *must* have FNAME. */ + savename = dirent.name; + apr_cpystrn(fullpath + dirpathlen, dirent.name, + APR_PATH_MAX - dirpathlen); + status = apr_stat(&fi, fullpath, + dirent.valid & ~(APR_FINFO_NAME), r->pool); + if (status != APR_SUCCESS) { + /* Something bad happened, skip this file. */ + continue; + } + memcpy(&dirent, &fi, sizeof(fi)); + dirent.name = savename; + dirent.valid |= APR_FINFO_NAME; + } + p = make_autoindex_entry(&dirent, autoindex_opts, autoindex_conf, r, + keyid, direction, pstring); + if (p != NULL) { + p->next = head; + head = p; + num_ent++; + } + } while (1); + + if (num_ent > 0) { + ar = (struct ent **) apr_palloc(r->pool, + num_ent * sizeof(struct ent *)); + p = head; + x = 0; + while (p) { + ar[x++] = p; + p = p->next; + } + + qsort((void *) ar, num_ent, sizeof(struct ent *), + (int (*)(const void *, const void *)) dsortf); + } + output_directories(ar, num_ent, autoindex_conf, r, autoindex_opts, + keyid, direction, colargs); + apr_dir_close(thedir); + + emit_tail(r, autoindex_conf->readme, + autoindex_opts & SUPPRESS_PREAMBLE); + + return 0; +} + +/* The formal handler... */ + +static int handle_autoindex(request_rec *r) +{ + autoindex_config_rec *d; + int allow_opts; + + if (strcmp(r->handler,DIR_MAGIC_TYPE) && !AP_IS_DEFAULT_HANDLER_NAME(r->handler)) { + return DECLINED; + } + if (r->finfo.filetype != APR_DIR) { + return DECLINED; + } + + allow_opts = ap_allow_options(r); + + d = (autoindex_config_rec *) ap_get_module_config(r->per_dir_config, + &autoindex_module); + + r->allowed |= (AP_METHOD_BIT << M_GET); + if (r->method_number != M_GET) { + return DECLINED; + } + + /* OK, nothing easy. Trot out the heavy artillery... */ + + if (allow_opts & OPT_INDEXES) { + int errstatus; + + if ((errstatus = ap_discard_request_body(r)) != OK) { + return errstatus; + } + + /* KLUDGE --- make the sub_req lookups happen in the right directory. + * Fixing this in the sub_req_lookup functions themselves is difficult, + * and would probably break virtual includes... + */ + + if (r->filename[strlen(r->filename) - 1] != '/') { + r->filename = apr_pstrcat(r->pool, r->filename, "/", NULL); + } + return index_directory(r, d); + } + else { + const char *index_names = apr_table_get(r->notes, "dir-index-names"); + + ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01276) + "Cannot serve directory %s: No matching DirectoryIndex (%s) found, and " + "server-generated directory index forbidden by " + "Options directive", + r->filename, + index_names ? index_names : "none"); + return HTTP_FORBIDDEN; + } +} + +static void register_hooks(apr_pool_t *p) +{ + ap_hook_handler(handle_autoindex,NULL,NULL,APR_HOOK_MIDDLE); +} + +AP_DECLARE_MODULE(autoindex) = +{ + STANDARD20_MODULE_STUFF, + create_autoindex_config, /* dir config creater */ + merge_autoindex_configs, /* dir merger --- default is to override */ + NULL, /* server config */ + NULL, /* merge server config */ + autoindex_cmds, /* command apr_table_t */ + register_hooks /* register hooks */ +}; |