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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:01:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:01:30 +0000
commit6beeb1b708550be0d4a53b272283e17e5e35fe17 (patch)
tree1ce8673d4aaa948e5554000101f46536a1e4cc29 /server/config.c
parentInitial commit. (diff)
downloadapache2-6beeb1b708550be0d4a53b272283e17e5e35fe17.tar.xz
apache2-6beeb1b708550be0d4a53b272283e17e5e35fe17.zip
Adding upstream version 2.4.57.upstream/2.4.57
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'server/config.c')
-rw-r--r--server/config.c2554
1 files changed, 2554 insertions, 0 deletions
diff --git a/server/config.c b/server/config.c
new file mode 100644
index 0000000..be889db
--- /dev/null
+++ b/server/config.c
@@ -0,0 +1,2554 @@
+/* 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.
+ */
+
+/*
+ * http_config.c: once was auxiliary functions for reading httpd's config
+ * file and converting filenames into a namespace
+ *
+ * Rob McCool
+ *
+ * Wall-to-wall rewrite for Apache... commands which are part of the
+ * server core can now be found next door in "http_core.c". Now contains
+ * general command loop, and functions which do bookkeeping for the new
+ * Apache config stuff (modules and configuration vectors).
+ *
+ * rst
+ *
+ */
+
+#include "apr.h"
+#include "apr_strings.h"
+#include "apr_portable.h"
+#include "apr_file_io.h"
+#include "apr_fnmatch.h"
+
+#define APR_WANT_STDIO
+#define APR_WANT_STRFUNC
+#include "apr_want.h"
+
+#include "ap_config.h"
+#include "httpd.h"
+#include "http_config.h"
+#include "http_protocol.h"
+#include "http_core.h"
+#include "http_log.h" /* for errors in parse_htaccess */
+#include "http_request.h" /* for default_handler (see invoke_handler) */
+#include "http_main.h"
+#include "http_vhost.h"
+#include "util_cfgtree.h"
+#include "util_varbuf.h"
+#include "mpm_common.h"
+
+#define APLOG_UNSET (APLOG_NO_MODULE - 1)
+/* we know core's module_index is 0 */
+#undef APLOG_MODULE_INDEX
+#define APLOG_MODULE_INDEX AP_CORE_MODULE_INDEX
+
+AP_DECLARE_DATA const char *ap_server_argv0 = NULL;
+AP_DECLARE_DATA const char *ap_server_root = NULL;
+AP_DECLARE_DATA server_rec *ap_server_conf = NULL;
+AP_DECLARE_DATA apr_pool_t *ap_pglobal = NULL;
+
+AP_DECLARE_DATA apr_array_header_t *ap_server_pre_read_config = NULL;
+AP_DECLARE_DATA apr_array_header_t *ap_server_post_read_config = NULL;
+AP_DECLARE_DATA apr_array_header_t *ap_server_config_defines = NULL;
+
+AP_DECLARE_DATA ap_directive_t *ap_conftree = NULL;
+
+APR_HOOK_STRUCT(
+ APR_HOOK_LINK(header_parser)
+ APR_HOOK_LINK(pre_config)
+ APR_HOOK_LINK(check_config)
+ APR_HOOK_LINK(post_config)
+ APR_HOOK_LINK(open_logs)
+ APR_HOOK_LINK(child_init)
+ APR_HOOK_LINK(handler)
+ APR_HOOK_LINK(quick_handler)
+ APR_HOOK_LINK(optional_fn_retrieve)
+ APR_HOOK_LINK(test_config)
+ APR_HOOK_LINK(open_htaccess)
+)
+
+AP_IMPLEMENT_HOOK_RUN_ALL(int, header_parser,
+ (request_rec *r), (r), OK, DECLINED)
+
+AP_IMPLEMENT_HOOK_RUN_ALL(int, pre_config,
+ (apr_pool_t *pconf, apr_pool_t *plog,
+ apr_pool_t *ptemp),
+ (pconf, plog, ptemp), OK, DECLINED)
+
+AP_IMPLEMENT_HOOK_RUN_ALL(int, check_config,
+ (apr_pool_t *pconf, apr_pool_t *plog,
+ apr_pool_t *ptemp, server_rec *s),
+ (pconf, plog, ptemp, s), OK, DECLINED)
+
+AP_IMPLEMENT_HOOK_VOID(test_config,
+ (apr_pool_t *pconf, server_rec *s),
+ (pconf, s))
+
+AP_IMPLEMENT_HOOK_RUN_ALL(int, post_config,
+ (apr_pool_t *pconf, apr_pool_t *plog,
+ apr_pool_t *ptemp, server_rec *s),
+ (pconf, plog, ptemp, s), OK, DECLINED)
+
+/* During the course of debugging I expanded this macro out, so
+ * rather than remove all the useful information there is in the
+ * following lines, I'm going to leave it here in case anyone
+ * else finds it useful.
+ *
+ * Ben has looked at it and thinks it correct :)
+ *
+AP_DECLARE(int) ap_hook_post_config(ap_HOOK_post_config_t *pf,
+ const char * const *aszPre,
+ const char * const *aszSucc,
+ int nOrder)
+{
+ ap_LINK_post_config_t *pHook;
+
+ if (!_hooks.link_post_config) {
+ _hooks.link_post_config = apr_array_make(apr_hook_global_pool, 1,
+ sizeof(ap_LINK_post_config_t));
+ apr_hook_sort_register("post_config", &_hooks.link_post_config);
+ }
+
+ pHook = apr_array_push(_hooks.link_post_config);
+ pHook->pFunc = pf;
+ pHook->aszPredecessors = aszPre;
+ pHook->aszSuccessors = aszSucc;
+ pHook->nOrder = nOrder;
+ pHook->szName = apr_hook_debug_current;
+
+ if (apr_hook_debug_enabled)
+ apr_hook_debug_show("post_config", aszPre, aszSucc);
+}
+
+AP_DECLARE(apr_array_header_t *) ap_hook_get_post_config(void)
+{
+ return _hooks.link_post_config;
+}
+
+AP_DECLARE(int) ap_run_post_config(apr_pool_t *pconf,
+ apr_pool_t *plog,
+ apr_pool_t *ptemp,
+ server_rec *s)
+{
+ ap_LINK_post_config_t *pHook;
+ int n;
+
+ if (!_hooks.link_post_config)
+ return;
+
+ pHook = (ap_LINK_post_config_t *)_hooks.link_post_config->elts;
+ for (n = 0; n < _hooks.link_post_config->nelts; ++n)
+ pHook[n].pFunc (pconf, plog, ptemp, s);
+}
+ */
+
+AP_IMPLEMENT_HOOK_RUN_ALL(int, open_logs,
+ (apr_pool_t *pconf, apr_pool_t *plog,
+ apr_pool_t *ptemp, server_rec *s),
+ (pconf, plog, ptemp, s), OK, DECLINED)
+
+AP_IMPLEMENT_HOOK_VOID(child_init,
+ (apr_pool_t *pchild, server_rec *s),
+ (pchild, s))
+
+AP_IMPLEMENT_HOOK_RUN_FIRST(int, handler, (request_rec *r),
+ (r), DECLINED)
+
+AP_IMPLEMENT_HOOK_RUN_FIRST(int, quick_handler, (request_rec *r, int lookup),
+ (r, lookup), DECLINED)
+
+AP_IMPLEMENT_HOOK_RUN_FIRST(apr_status_t, open_htaccess,
+ (request_rec *r, const char *dir_name, const char *access_name,
+ ap_configfile_t **conffile, const char **full_name),
+ (r, dir_name, access_name, conffile, full_name),
+ AP_DECLINED)
+
+/* hooks with no args are implemented last, after disabling APR hook probes */
+#if defined(APR_HOOK_PROBES_ENABLED)
+#undef APR_HOOK_PROBES_ENABLED
+#undef APR_HOOK_PROBE_ENTRY
+#define APR_HOOK_PROBE_ENTRY(ud,ns,name,args)
+#undef APR_HOOK_PROBE_RETURN
+#define APR_HOOK_PROBE_RETURN(ud,ns,name,rv,args)
+#undef APR_HOOK_PROBE_INVOKE
+#define APR_HOOK_PROBE_INVOKE(ud,ns,name,src,args)
+#undef APR_HOOK_PROBE_COMPLETE
+#define APR_HOOK_PROBE_COMPLETE(ud,ns,name,src,rv,args)
+#undef APR_HOOK_INT_DCL_UD
+#define APR_HOOK_INT_DCL_UD
+#endif
+AP_IMPLEMENT_HOOK_VOID(optional_fn_retrieve, (void), ())
+
+/****************************************************************
+ *
+ * We begin with the functions which deal with the linked list
+ * of modules which control just about all of the server operation.
+ */
+
+/* total_modules is the number of modules that have been linked
+ * into the server.
+ */
+static int total_modules = 0;
+
+/* dynamic_modules is the number of modules that have been added
+ * after the pre-loaded ones have been set up. It shouldn't be larger
+ * than DYNAMIC_MODULE_LIMIT.
+ */
+static int dynamic_modules = 0;
+
+/* The maximum possible value for total_modules, i.e. number of static
+ * modules plus DYNAMIC_MODULE_LIMIT.
+ */
+static int max_modules = 0;
+
+/* The number of elements we need to alloc for config vectors. Before loading
+ * of dynamic modules, we must be liberal and set this to max_modules. After
+ * loading of dynamic modules, we can trim it down to total_modules. On
+ * restart, reset to max_modules.
+ */
+static int conf_vector_length = 0;
+
+static int reserved_module_slots = 0;
+
+AP_DECLARE_DATA module *ap_top_module = NULL;
+AP_DECLARE_DATA module **ap_loaded_modules=NULL;
+
+static apr_hash_t *ap_config_hash = NULL;
+
+/* a list of the module symbol names with the trailing "_module"removed */
+static char **ap_module_short_names = NULL;
+
+typedef int (*handler_func)(request_rec *);
+typedef void *(*dir_maker_func)(apr_pool_t *, char *);
+typedef void *(*merger_func)(apr_pool_t *, void *, void *);
+
+/* A list of the merge_dir_config functions of all loaded modules, sorted
+ * by module_index.
+ * Using this list in ap_merge_per_dir_configs() is faster than following
+ * the module->next linked list because of better memory locality (resulting
+ * in better cache usage).
+ */
+static merger_func *merger_func_cache;
+
+/* maximum nesting level for config directories */
+#ifndef AP_MAX_INCLUDE_DIR_DEPTH
+#define AP_MAX_INCLUDE_DIR_DEPTH (128)
+#endif
+
+/* Dealing with config vectors. These are associated with per-directory,
+ * per-server, and per-request configuration, and have a void* pointer for
+ * each modules. The nature of the structure pointed to is private to the
+ * module in question... the core doesn't (and can't) know. However, there
+ * are defined interfaces which allow it to create instances of its private
+ * per-directory and per-server structures, and to merge the per-directory
+ * structures of a directory and its subdirectory (producing a new one in
+ * which the defaults applying to the base directory have been properly
+ * overridden).
+ */
+
+static ap_conf_vector_t *create_empty_config(apr_pool_t *p)
+{
+ void *conf_vector = apr_pcalloc(p, sizeof(void *) * conf_vector_length);
+ return conf_vector;
+}
+
+static ap_conf_vector_t *create_default_per_dir_config(apr_pool_t *p)
+{
+ void **conf_vector = apr_pcalloc(p, sizeof(void *) * conf_vector_length);
+ module *modp;
+
+ for (modp = ap_top_module; modp; modp = modp->next) {
+ dir_maker_func df = modp->create_dir_config;
+
+ if (df)
+ conf_vector[modp->module_index] = (*df)(p, NULL);
+ }
+
+ return (ap_conf_vector_t *)conf_vector;
+}
+
+AP_CORE_DECLARE(ap_conf_vector_t *) ap_merge_per_dir_configs(apr_pool_t *p,
+ ap_conf_vector_t *base,
+ ap_conf_vector_t *new_conf)
+{
+ void **conf_vector = apr_palloc(p, sizeof(void *) * conf_vector_length);
+ void **base_vector = (void **)base;
+ void **new_vector = (void **)new_conf;
+ int i;
+
+ for (i = 0; i < total_modules; i++) {
+ if (!new_vector[i]) {
+ conf_vector[i] = base_vector[i];
+ }
+ else {
+ const merger_func df = merger_func_cache[i];
+ if (df && base_vector[i]) {
+ conf_vector[i] = (*df)(p, base_vector[i], new_vector[i]);
+ }
+ else
+ conf_vector[i] = new_vector[i];
+ }
+ }
+
+ return (ap_conf_vector_t *)conf_vector;
+}
+
+static ap_conf_vector_t *create_server_config(apr_pool_t *p, server_rec *s)
+{
+ void **conf_vector = apr_pcalloc(p, sizeof(void *) * conf_vector_length);
+ module *modp;
+
+ for (modp = ap_top_module; modp; modp = modp->next) {
+ if (modp->create_server_config)
+ conf_vector[modp->module_index] = (*modp->create_server_config)(p, s);
+ }
+
+ return (ap_conf_vector_t *)conf_vector;
+}
+
+static void merge_server_configs(apr_pool_t *p, ap_conf_vector_t *base,
+ server_rec *virt)
+{
+ /* Can reuse the 'virt' vector for the spine of it, since we don't
+ * have to deal with the moral equivalent of .htaccess files here...
+ */
+
+ void **base_vector = (void **)base;
+ void **virt_vector = (void **)virt->module_config;
+ module *modp;
+
+ for (modp = ap_top_module; modp; modp = modp->next) {
+ merger_func df = modp->merge_server_config;
+ int i = modp->module_index;
+
+ if (!virt_vector[i]) {
+ if (df && modp->create_server_config
+ && (ap_get_module_flags(modp) &
+ AP_MODULE_FLAG_ALWAYS_MERGE)) {
+ virt_vector[i] = (*modp->create_server_config)(p, virt);
+ }
+ else {
+ virt_vector[i] = base_vector[i];
+ df = NULL;
+ }
+ }
+ if (df) {
+ virt_vector[i] = (*df)(p, base_vector[i], virt_vector[i]);
+ }
+ }
+}
+
+AP_CORE_DECLARE(ap_conf_vector_t *) ap_create_request_config(apr_pool_t *p)
+{
+ return create_empty_config(p);
+}
+
+AP_CORE_DECLARE(ap_conf_vector_t *) ap_create_conn_config(apr_pool_t *p)
+{
+ return create_empty_config(p);
+}
+
+AP_CORE_DECLARE(ap_conf_vector_t *) ap_create_per_dir_config(apr_pool_t *p)
+{
+ return create_empty_config(p);
+}
+
+/* Invoke the filter_init_func for all filters with FILTERS where f->r
+ * matches R. Restricting to a matching R avoids re-running init
+ * functions for filters configured for r->main where r is a
+ * subrequest. */
+static int invoke_filter_init(request_rec *r, ap_filter_t *filters)
+{
+ while (filters) {
+ if (filters->frec->filter_init_func && filters->r == r) {
+ int result = filters->frec->filter_init_func(filters);
+ if (result != OK) {
+ return result;
+ }
+ }
+ filters = filters->next;
+ }
+ return OK;
+}
+
+AP_CORE_DECLARE(int) ap_invoke_handler(request_rec *r)
+{
+ const char *handler;
+ const char *p;
+ int result;
+ const char *old_handler = r->handler;
+ const char *ignore;
+
+ /*
+ * The new insert_filter stage makes the most sense here. We only use
+ * it when we are going to run the request, so we must insert filters
+ * if any are available. Since the goal of this phase is to allow all
+ * modules to insert a filter if they want to, this filter returns
+ * void. I just can't see any way that this filter can reasonably
+ * fail, either your modules inserts something or it doesn't. rbb
+ */
+ ap_run_insert_filter(r);
+
+ /* Before continuing, allow each filter that is in the two chains to
+ * run their init function to let them do any magic before we could
+ * start generating data.
+ */
+ result = invoke_filter_init(r, r->input_filters);
+ if (result != OK) {
+ return result;
+ }
+ result = invoke_filter_init(r, r->output_filters);
+ if (result != OK) {
+ return result;
+ }
+
+ if (!r->handler) {
+ if (r->content_type) {
+ handler = r->content_type;
+ if ((p=ap_strchr_c(handler, ';')) != NULL) {
+ char *new_handler = (char *)apr_pmemdup(r->pool, handler,
+ p - handler + 1);
+ char *p2 = new_handler + (p - handler);
+ handler = new_handler;
+
+ /* exclude media type arguments */
+ while (p2 > handler && p2[-1] == ' ')
+ --p2; /* strip trailing spaces */
+
+ *p2='\0';
+ }
+ }
+ else {
+ handler = AP_DEFAULT_HANDLER_NAME;
+ }
+
+ r->handler = handler;
+ }
+
+ result = ap_run_handler(r);
+
+ r->handler = old_handler;
+
+ if (result == DECLINED && r->handler && r->filename) {
+ ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, r, APLOGNO(00523)
+ "handler \"%s\" not found for: %s", r->handler, r->filename);
+ }
+ if ((result != OK) && (result != DONE) && (result != DECLINED) && (result != SUSPENDED)
+ && (result != AP_FILTER_ERROR) /* ap_die() knows about this specifically */
+ && !ap_is_HTTP_VALID_RESPONSE(result)) {
+ /* If a module is deliberately returning something else
+ * (request_rec in non-HTTP or proprietary extension?)
+ * let it set a note to allow it explicitly.
+ * Otherwise, a return code that is neither reserved nor HTTP
+ * is a bug, as in PR#31759.
+ */
+ ignore = apr_table_get(r->notes, "HTTP_IGNORE_RANGE");
+ if (!ignore) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00524)
+ "Handler for %s returned invalid result code %d",
+ r->handler, result);
+ result = HTTP_INTERNAL_SERVER_ERROR;
+ }
+ }
+
+ return result == DECLINED ? HTTP_INTERNAL_SERVER_ERROR : result;
+}
+
+AP_DECLARE(int) ap_method_is_limited(cmd_parms *cmd, const char *method)
+{
+ int methnum;
+
+ methnum = ap_method_number_of(method);
+
+ /*
+ * A method number either hardcoded into apache or
+ * added by a module and registered.
+ */
+ if (methnum != M_INVALID) {
+ return (cmd->limited & (AP_METHOD_BIT << methnum)) ? 1 : 0;
+ }
+
+ return 0; /* not found */
+}
+
+AP_DECLARE(void) ap_register_hooks(module *m, apr_pool_t *p)
+{
+ if (m->register_hooks) {
+ if (getenv("SHOW_HOOKS")) {
+ printf("Registering hooks for %s\n", m->name);
+ apr_hook_debug_enabled = 1;
+ }
+
+ apr_hook_debug_current = m->name;
+ m->register_hooks(p);
+ }
+}
+
+static void ap_add_module_commands(module *m, apr_pool_t *p);
+
+typedef struct ap_mod_list_struct ap_mod_list;
+struct ap_mod_list_struct {
+ struct ap_mod_list_struct *next;
+ module *m;
+ const command_rec *cmd;
+};
+
+static void rebuild_conf_hash(apr_pool_t *p, int add_prelinked)
+{
+ module **m;
+
+ ap_config_hash = apr_hash_make(p);
+
+ apr_pool_cleanup_register(p, &ap_config_hash, ap_pool_cleanup_set_null,
+ apr_pool_cleanup_null);
+ if (add_prelinked) {
+ for (m = ap_prelinked_modules; *m != NULL; m++) {
+ ap_add_module_commands(*m, p);
+ }
+ }
+}
+
+static void ap_add_module_commands(module *m, apr_pool_t *p)
+{
+ apr_pool_t *tpool;
+ ap_mod_list *mln;
+ const command_rec *cmd;
+ char *dir;
+
+ cmd = m->cmds;
+
+ if (ap_config_hash == NULL) {
+ rebuild_conf_hash(p, 0);
+ }
+
+ tpool = apr_hash_pool_get(ap_config_hash);
+
+ while (cmd && cmd->name) {
+ mln = apr_palloc(tpool, sizeof(ap_mod_list));
+ mln->cmd = cmd;
+ mln->m = m;
+ dir = apr_pstrdup(tpool, cmd->name);
+
+ ap_str_tolower(dir);
+
+ mln->next = apr_hash_get(ap_config_hash, dir, APR_HASH_KEY_STRING);
+ apr_hash_set(ap_config_hash, dir, APR_HASH_KEY_STRING, mln);
+ ++cmd;
+ }
+}
+
+
+/* One-time setup for precompiled modules --- NOT to be done on restart */
+
+AP_DECLARE(const char *) ap_add_module(module *m, apr_pool_t *p,
+ const char *sym_name)
+{
+ ap_module_symbol_t *sym = ap_prelinked_module_symbols;
+
+ /* This could be called from a LoadModule httpd.conf command,
+ * after the file has been linked and the module structure within it
+ * teased out...
+ */
+
+ if (m->version != MODULE_MAGIC_NUMBER_MAJOR) {
+ return apr_psprintf(p, "Module \"%s\" is not compatible with this "
+ "version of Apache (found %d, need %d). Please "
+ "contact the vendor for the correct version.",
+ m->name, m->version, MODULE_MAGIC_NUMBER_MAJOR);
+ }
+
+ if (m->module_index == -1) {
+ if (dynamic_modules >= DYNAMIC_MODULE_LIMIT) {
+ return apr_psprintf(p, "Module \"%s\" could not be loaded, "
+ "because the dynamic module limit was "
+ "reached. Please increase "
+ "DYNAMIC_MODULE_LIMIT and recompile.", m->name);
+ }
+ /*
+ * If this fails some module forgot to call ap_reserve_module_slots*.
+ */
+ ap_assert(total_modules < conf_vector_length);
+
+ m->module_index = total_modules++;
+ dynamic_modules++;
+
+ }
+ else if (!sym_name) {
+ while (sym->modp != NULL) {
+ if (sym->modp == m) {
+ sym_name = sym->name;
+ break;
+ }
+ sym++;
+ }
+ }
+
+ if (m->next == NULL) {
+ m->next = ap_top_module;
+ ap_top_module = m;
+ }
+
+ if (sym_name) {
+ int len = strlen(sym_name);
+ int slen = strlen("_module");
+ if (len > slen && !strcmp(sym_name + len - slen, "_module")) {
+ len -= slen;
+ }
+
+ ap_module_short_names[m->module_index] = ap_malloc(len + 1);
+ memcpy(ap_module_short_names[m->module_index], sym_name, len);
+ ap_module_short_names[m->module_index][len] = '\0';
+ merger_func_cache[m->module_index] = m->merge_dir_config;
+ }
+
+
+ /* Some C compilers put a complete path into __FILE__, but we want
+ * only the filename (e.g. mod_includes.c). So check for path
+ * components (Unix and DOS), and remove them.
+ */
+
+ if (ap_strrchr_c(m->name, '/'))
+ m->name = 1 + ap_strrchr_c(m->name, '/');
+
+ if (ap_strrchr_c(m->name, '\\'))
+ m->name = 1 + ap_strrchr_c(m->name, '\\');
+
+#ifdef _OSD_POSIX
+ /* __FILE__ =
+ * "*POSIX(/home/martin/apache/src/modules/standard/mod_info.c)"
+ */
+
+ /* We cannot fix the string in-place, because it's const */
+ if (m->name[strlen(m->name)-1] == ')') {
+ char *tmp = ap_malloc(strlen(m->name)); /* FIXME: memory leak, albeit a small one */
+ memcpy(tmp, m->name, strlen(m->name)-1);
+ tmp[strlen(m->name)-1] = '\0';
+ m->name = tmp;
+ }
+#endif /*_OSD_POSIX*/
+
+ ap_add_module_commands(m, p);
+ /* FIXME: is this the right place to call this?
+ * It doesn't appear to be
+ */
+ ap_register_hooks(m, p);
+
+ return NULL;
+}
+
+/*
+ * remove_module undoes what add_module did. There are some caveats:
+ * when the module is removed, its slot is lost so all the current
+ * per-dir and per-server configurations are invalid. So we should
+ * only ever call this function when you are invalidating almost
+ * all our current data. I.e. when doing a restart.
+ */
+
+AP_DECLARE(void) ap_remove_module(module *m)
+{
+ module *modp;
+
+ modp = ap_top_module;
+ if (modp == m) {
+ /* We are the top module, special case */
+ ap_top_module = modp->next;
+ m->next = NULL;
+ }
+ else {
+ /* Not the top module, find use. When found modp will
+ * point to the module _before_ us in the list
+ */
+
+ while (modp && modp->next != m) {
+ modp = modp->next;
+ }
+
+ if (!modp) {
+ /* Uh-oh, this module doesn't exist */
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, NULL, APLOGNO(00525)
+ "Cannot remove module %s: not found in module list",
+ m->name);
+ return;
+ }
+
+ /* Eliminate us from the module list */
+ modp->next = modp->next->next;
+ }
+
+ free(ap_module_short_names[m->module_index]);
+ ap_module_short_names[m->module_index] = NULL;
+ merger_func_cache[m->module_index] = NULL;
+
+ m->module_index = -1; /* simulate being unloaded, should
+ * be unnecessary */
+ dynamic_modules--;
+ total_modules--;
+}
+
+AP_DECLARE(const char *) ap_add_loaded_module(module *mod, apr_pool_t *p,
+ const char *short_name)
+{
+ module **m;
+ const char *error;
+
+ /*
+ * Add module pointer to top of chained module list
+ */
+ error = ap_add_module(mod, p, short_name);
+ if (error) {
+ return error;
+ }
+
+ /*
+ * And module pointer to list of loaded modules
+ *
+ * Notes: 1. ap_add_module() would already complain if no more space
+ * exists for adding a dynamically loaded module
+ * 2. ap_add_module() accepts double inclusion, so we have
+ * to accept this, too.
+ */
+ for (m = ap_loaded_modules; *m != NULL; m++)
+ ;
+ *m++ = mod;
+ *m = NULL;
+
+ return NULL;
+}
+
+AP_DECLARE(void) ap_remove_loaded_module(module *mod)
+{
+ module **m;
+ module **m2;
+ int done;
+
+ /*
+ * Remove module pointer from chained module list
+ */
+ ap_remove_module(mod);
+
+ /*
+ * Remove module pointer from list of loaded modules
+ *
+ * Note: 1. We cannot determine if the module was successfully
+ * removed by ap_remove_module().
+ * 2. We have not to complain explicitly when the module
+ * is not found because ap_remove_module() did it
+ * for us already.
+ */
+ for (m = m2 = ap_loaded_modules, done = 0; *m2 != NULL; m2++) {
+ if (*m2 == mod && done == 0)
+ done = 1;
+ else
+ *m++ = *m2;
+ }
+
+ *m = NULL;
+}
+
+AP_DECLARE(const char *) ap_setup_prelinked_modules(process_rec *process)
+{
+ module **m;
+ module **m2;
+ const char *error;
+
+ apr_hook_global_pool=process->pconf;
+
+ rebuild_conf_hash(process->pconf, 0);
+
+ /*
+ * Initialise total_modules variable and module indices
+ */
+ total_modules = 0;
+ for (m = ap_preloaded_modules; *m != NULL; m++)
+ (*m)->module_index = total_modules++;
+
+ max_modules = total_modules + DYNAMIC_MODULE_LIMIT + 1;
+ conf_vector_length = max_modules;
+
+ /*
+ * Initialise list of loaded modules and short names
+ */
+ ap_loaded_modules = (module **)apr_palloc(process->pool,
+ sizeof(module *) * conf_vector_length);
+ if (!ap_module_short_names)
+ ap_module_short_names = ap_calloc(sizeof(char *), conf_vector_length);
+
+ if (!merger_func_cache)
+ merger_func_cache = ap_calloc(sizeof(merger_func), conf_vector_length);
+
+ if (ap_loaded_modules == NULL || ap_module_short_names == NULL
+ || merger_func_cache == NULL)
+ return "Ouch! Out of memory in ap_setup_prelinked_modules()!";
+
+ for (m = ap_preloaded_modules, m2 = ap_loaded_modules; *m != NULL; )
+ *m2++ = *m++;
+
+ *m2 = NULL;
+
+ /*
+ * Initialize chain of linked (=activate) modules
+ */
+ for (m = ap_prelinked_modules; *m != NULL; m++) {
+ error = ap_add_module(*m, process->pconf, NULL);
+ if (error) {
+ return error;
+ }
+ }
+
+ apr_hook_sort_all();
+
+ return NULL;
+}
+
+AP_DECLARE(const char *) ap_find_module_name(module *m)
+{
+ return m->name;
+}
+
+AP_DECLARE(const char *) ap_find_module_short_name(int module_index)
+{
+ if (module_index < 0 || module_index >= conf_vector_length)
+ return NULL;
+ return ap_module_short_names[module_index];
+}
+
+AP_DECLARE(module *) ap_find_linked_module(const char *name)
+{
+ module *modp;
+
+ for (modp = ap_top_module; modp; modp = modp->next) {
+ if (strcmp(modp->name, name) == 0)
+ return modp;
+ }
+
+ return NULL;
+}
+
+/*****************************************************************
+ *
+ * Resource, access, and .htaccess config files now parsed by a common
+ * command loop.
+ *
+ * Let's begin with the basics; parsing the line and
+ * invoking the function...
+ */
+
+#define AP_MAX_ARGC 64
+
+static const char *invoke_cmd(const command_rec *cmd, cmd_parms *parms,
+ void *mconfig, const char *args)
+{
+ int override_list_ok = 0;
+ char *w, *w2, *w3;
+ const char *errmsg = NULL;
+
+ /* Have we been provided a list of acceptable directives? */
+ if (parms->override_list != NULL) {
+ if (apr_table_get(parms->override_list, cmd->name) != NULL) {
+ override_list_ok = 1;
+ }
+ }
+
+ if ((parms->override & cmd->req_override) == 0 && !override_list_ok) {
+ if (parms->override & NONFATAL_OVERRIDE) {
+ ap_log_perror(APLOG_MARK, APLOG_WARNING, 0, parms->temp_pool,
+ APLOGNO(02295)
+ "%s in .htaccess forbidden by AllowOverride",
+ cmd->name);
+ return NULL;
+ }
+ else if (parms->directive && parms->directive->parent) {
+ return apr_pstrcat(parms->pool, cmd->name, " not allowed in ",
+ parms->directive->parent->directive, ">",
+ " context", NULL);
+ }
+ else {
+ return apr_pstrcat(parms->pool, cmd->name,
+ " not allowed here", NULL);
+ }
+ }
+
+ parms->info = cmd->cmd_data;
+ parms->cmd = cmd;
+
+ switch (cmd->args_how) {
+ case RAW_ARGS:
+#ifdef RESOLVE_ENV_PER_TOKEN
+ args = ap_resolve_env(parms->pool,args);
+#endif
+ return cmd->AP_RAW_ARGS(parms, mconfig, args);
+
+ case TAKE_ARGV:
+ {
+ char *argv[AP_MAX_ARGC];
+ int argc = 0;
+
+ do {
+ w = ap_getword_conf(parms->pool, &args);
+ if (*w == '\0' && *args == '\0') {
+ break;
+ }
+ argv[argc] = w;
+ argc++;
+ } while (argc < AP_MAX_ARGC && *args != '\0');
+
+ return cmd->AP_TAKE_ARGV(parms, mconfig, argc, argv);
+ }
+
+ case NO_ARGS:
+ if (*args != 0)
+ return apr_pstrcat(parms->pool, cmd->name, " takes no arguments",
+ NULL);
+
+ return cmd->AP_NO_ARGS(parms, mconfig);
+
+ case TAKE1:
+ w = ap_getword_conf(parms->pool, &args);
+
+ if (*w == '\0' || *args != 0)
+ return apr_pstrcat(parms->pool, cmd->name, " takes one argument",
+ cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL);
+
+ return cmd->AP_TAKE1(parms, mconfig, w);
+
+ case TAKE2:
+ w = ap_getword_conf(parms->pool, &args);
+ w2 = ap_getword_conf(parms->pool, &args);
+
+ if (*w == '\0' || *w2 == '\0' || *args != 0)
+ return apr_pstrcat(parms->pool, cmd->name, " takes two arguments",
+ cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL);
+
+ return cmd->AP_TAKE2(parms, mconfig, w, w2);
+
+ case TAKE12:
+ w = ap_getword_conf(parms->pool, &args);
+ w2 = ap_getword_conf(parms->pool, &args);
+
+ if (*w == '\0' || *args != 0)
+ return apr_pstrcat(parms->pool, cmd->name, " takes 1-2 arguments",
+ cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL);
+
+ return cmd->AP_TAKE2(parms, mconfig, w, *w2 ? w2 : NULL);
+
+ case TAKE3:
+ w = ap_getword_conf(parms->pool, &args);
+ w2 = ap_getword_conf(parms->pool, &args);
+ w3 = ap_getword_conf(parms->pool, &args);
+
+ if (*w == '\0' || *w2 == '\0' || *w3 == '\0' || *args != 0)
+ return apr_pstrcat(parms->pool, cmd->name, " takes three arguments",
+ cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL);
+
+ return cmd->AP_TAKE3(parms, mconfig, w, w2, w3);
+
+ case TAKE23:
+ w = ap_getword_conf(parms->pool, &args);
+ w2 = ap_getword_conf(parms->pool, &args);
+ w3 = *args ? ap_getword_conf(parms->pool, &args) : NULL;
+
+ if (*w == '\0' || *w2 == '\0' || *args != 0)
+ return apr_pstrcat(parms->pool, cmd->name,
+ " takes two or three arguments",
+ cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL);
+
+ return cmd->AP_TAKE3(parms, mconfig, w, w2, w3);
+
+ case TAKE123:
+ w = ap_getword_conf(parms->pool, &args);
+ w2 = *args ? ap_getword_conf(parms->pool, &args) : NULL;
+ w3 = *args ? ap_getword_conf(parms->pool, &args) : NULL;
+
+ if (*w == '\0' || *args != 0)
+ return apr_pstrcat(parms->pool, cmd->name,
+ " takes one, two or three arguments",
+ cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL);
+
+ return cmd->AP_TAKE3(parms, mconfig, w, w2, w3);
+
+ case TAKE13:
+ w = ap_getword_conf(parms->pool, &args);
+ w2 = *args ? ap_getword_conf(parms->pool, &args) : NULL;
+ w3 = *args ? ap_getword_conf(parms->pool, &args) : NULL;
+
+ if (*w == '\0' || (w2 && *w2 && !w3) || *args != 0)
+ return apr_pstrcat(parms->pool, cmd->name,
+ " takes one or three arguments",
+ cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL);
+
+ return cmd->AP_TAKE3(parms, mconfig, w, w2, w3);
+
+ case ITERATE:
+ w = ap_getword_conf(parms->pool, &args);
+
+ if (*w == '\0')
+ return apr_pstrcat(parms->pool, cmd->name,
+ " requires at least one argument",
+ cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL);
+
+ while (*w != '\0') {
+ errmsg = cmd->AP_TAKE1(parms, mconfig, w);
+
+ if (errmsg && strcmp(errmsg, DECLINE_CMD) != 0)
+ return errmsg;
+
+ w = ap_getword_conf(parms->pool, &args);
+ }
+
+ return errmsg;
+
+ case ITERATE2:
+ w = ap_getword_conf(parms->pool, &args);
+
+ if (*w == '\0' || *args == 0)
+ return apr_pstrcat(parms->pool, cmd->name,
+ " requires at least two arguments",
+ cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL);
+
+ while (*(w2 = ap_getword_conf(parms->pool, &args)) != '\0') {
+
+ errmsg = cmd->AP_TAKE2(parms, mconfig, w, w2);
+
+ if (errmsg && strcmp(errmsg, DECLINE_CMD) != 0)
+ return errmsg;
+ }
+
+ return errmsg;
+
+ case FLAG:
+ /*
+ * This is safe to use temp_pool here, because the 'flag' itself is not
+ * forwarded as-is
+ */
+ w = ap_getword_conf(parms->temp_pool, &args);
+
+ if (*w == '\0' || (ap_cstr_casecmp(w, "on") && ap_cstr_casecmp(w, "off")))
+ return apr_pstrcat(parms->pool, cmd->name, " must be On or Off",
+ NULL);
+
+ return cmd->AP_FLAG(parms, mconfig, ap_cstr_casecmp(w, "off") != 0);
+
+ default:
+ return apr_pstrcat(parms->pool, cmd->name,
+ " is improperly configured internally (server bug)",
+ NULL);
+ }
+}
+
+AP_CORE_DECLARE(const command_rec *) ap_find_command(const char *name,
+ const command_rec *cmds)
+{
+ while (cmds->name) {
+ if (!ap_cstr_casecmp(name, cmds->name))
+ return cmds;
+
+ ++cmds;
+ }
+
+ return NULL;
+}
+
+AP_CORE_DECLARE(const command_rec *) ap_find_command_in_modules(
+ const char *cmd_name, module **mod)
+{
+ const command_rec *cmdp;
+ module *modp;
+
+ for (modp = *mod; modp; modp = modp->next) {
+ if (modp->cmds && (cmdp = ap_find_command(cmd_name, modp->cmds))) {
+ *mod = modp;
+ return cmdp;
+ }
+ }
+
+ return NULL;
+}
+
+AP_CORE_DECLARE(void *) ap_set_config_vectors(server_rec *server,
+ ap_conf_vector_t *section_vector,
+ const char *section,
+ module *mod, apr_pool_t *pconf)
+{
+ void *section_config = ap_get_module_config(section_vector, mod);
+ void *server_config = ap_get_module_config(server->module_config, mod);
+
+ if (!section_config && mod->create_dir_config) {
+ /* ### need to fix the create_dir_config functions' prototype... */
+ section_config = (*mod->create_dir_config)(pconf, (char *)section);
+ ap_set_module_config(section_vector, mod, section_config);
+ }
+
+ if (!server_config && mod->create_server_config) {
+ server_config = (*mod->create_server_config)(pconf, server);
+ ap_set_module_config(server->module_config, mod, server_config);
+ }
+
+ return section_config;
+}
+
+static const char *execute_now(char *cmd_line, const char *args,
+ cmd_parms *parms,
+ apr_pool_t *p, apr_pool_t *ptemp,
+ ap_directive_t **sub_tree,
+ ap_directive_t *parent);
+
+static const char *ap_build_config_sub(apr_pool_t *p, apr_pool_t *temp_pool,
+ const char *l, cmd_parms *parms,
+ ap_directive_t **current,
+ ap_directive_t **curr_parent,
+ ap_directive_t **conftree)
+{
+ const char *retval = NULL;
+ const char *args;
+ char *cmd_name;
+ ap_directive_t *newdir;
+ const command_rec *cmd;
+ ap_mod_list *ml;
+ char *lname;
+
+ if (*l == '#' || *l == '\0')
+ return NULL;
+
+#if RESOLVE_ENV_PER_TOKEN
+ args = l;
+#else
+ args = ap_resolve_env(temp_pool, l);
+#endif
+
+ /* The first word is the name of a directive. We can safely use the
+ * 'temp_pool' for it. If it matches the name of a known directive, we
+ * can reference the string within the module if needed. Otherwise, we
+ * can still make a copy in the 'p' pool. */
+ cmd_name = ap_getword_conf(temp_pool, &args);
+ if (*cmd_name == '\0') {
+ /* Note: this branch should not occur. An empty line should have
+ * triggered the exit further above.
+ */
+ return NULL;
+ }
+
+ if (cmd_name[1] != '/') {
+ char *lastc = cmd_name + strlen(cmd_name) - 1;
+ if (*lastc == '>') {
+ *lastc = '\0' ;
+ }
+ if (cmd_name[0] == '<' && *args == '\0') {
+ args = ">";
+ }
+ }
+
+ newdir = apr_pcalloc(p, sizeof(ap_directive_t));
+ newdir->filename = parms->config_file->name;
+ newdir->line_num = parms->config_file->line_number;
+ newdir->args = apr_pstrdup(p, args);
+
+ lname = apr_pstrdup(temp_pool, cmd_name);
+ ap_str_tolower(lname);
+ ml = apr_hash_get(ap_config_hash, lname, APR_HASH_KEY_STRING);
+
+ if (ml && (cmd = ml->cmd) != NULL) {
+ newdir->directive = cmd->name;
+ if (cmd->req_override & EXEC_ON_READ) {
+ ap_directive_t *sub_tree = NULL;
+
+ parms->err_directive = newdir;
+ retval = execute_now(cmd_name, args, parms, p, temp_pool,
+ &sub_tree, *curr_parent);
+ if (*current) {
+ (*current)->next = sub_tree;
+ }
+ else {
+ *current = sub_tree;
+ if (*curr_parent) {
+ (*curr_parent)->first_child = (*current);
+ }
+ if (*current) {
+ (*current)->parent = (*curr_parent);
+ }
+ }
+ if (*current) {
+ if (!*conftree) {
+ /* Before walking *current to the end of the list,
+ * set the head to *current.
+ */
+ *conftree = *current;
+ }
+ while ((*current)->next != NULL) {
+ (*current) = (*current)->next;
+ (*current)->parent = (*curr_parent);
+ }
+ }
+ return retval;
+ }
+ }
+ else {
+ /* No known directive found? Make a copy of what we have parsed. */
+ newdir->directive = apr_pstrdup(p, cmd_name);
+ }
+
+
+ if (cmd_name[0] == '<') {
+ if (cmd_name[1] != '/') {
+ (*current) = ap_add_node(curr_parent, *current, newdir, 1);
+ }
+ else if (*curr_parent == NULL) {
+ parms->err_directive = newdir;
+ return apr_pstrcat(p, cmd_name,
+ " without matching <", cmd_name + 2,
+ " section", NULL);
+ }
+ else {
+ char *bracket = cmd_name + strlen(cmd_name) - 1;
+
+ if (*bracket != '>') {
+ parms->err_directive = newdir;
+ return apr_pstrcat(p, cmd_name,
+ "> directive missing closing '>'", NULL);
+ }
+
+ *bracket = '\0';
+
+ if (ap_cstr_casecmp(cmd_name + 2,
+ (*curr_parent)->directive + 1) != 0) {
+ parms->err_directive = newdir;
+ return apr_pstrcat(p, "Expected </",
+ (*curr_parent)->directive + 1, "> but saw ",
+ cmd_name, ">", NULL);
+ }
+
+ *bracket = '>';
+
+ /* done with this section; move up a level */
+ *current = *curr_parent;
+ *curr_parent = (*current)->parent;
+ }
+ }
+ else {
+ *current = ap_add_node(curr_parent, *current, newdir, 0);
+ }
+
+ return retval;
+}
+
+#define VARBUF_INIT_LEN 200
+#define VARBUF_MAX_LEN (16*1024*1024)
+
+AP_DECLARE(const char *) ap_build_cont_config(apr_pool_t *p,
+ apr_pool_t *temp_pool,
+ cmd_parms *parms,
+ ap_directive_t **current,
+ ap_directive_t **curr_parent,
+ char *orig_directive)
+{
+ char *bracket;
+ const char *retval;
+ ap_directive_t *sub_tree = NULL;
+ apr_status_t rc;
+ struct ap_varbuf vb;
+ apr_size_t max_len = VARBUF_MAX_LEN;
+ if (p == temp_pool)
+ max_len = HUGE_STRING_LEN; /* lower limit for .htaccess */
+
+ bracket = apr_pstrcat(temp_pool, orig_directive + 1, ">", NULL);
+ ap_varbuf_init(temp_pool, &vb, VARBUF_INIT_LEN);
+
+ while ((rc = ap_varbuf_cfg_getline(&vb, parms->config_file, max_len))
+ == APR_SUCCESS) {
+ if (!memcmp(vb.buf, "</", 2)
+ && (ap_cstr_casecmp(vb.buf + 2, bracket) == 0)
+ && (*curr_parent == NULL)) {
+ break;
+ }
+ retval = ap_build_config_sub(p, temp_pool, vb.buf, parms, current,
+ curr_parent, &sub_tree);
+ if (retval != NULL)
+ return retval;
+
+ if (sub_tree == NULL) {
+ sub_tree = *curr_parent;
+ }
+
+ if (sub_tree == NULL) {
+ sub_tree = *current;
+ }
+ }
+ ap_varbuf_free(&vb);
+ if (rc != APR_EOF && rc != APR_SUCCESS)
+ return ap_pcfg_strerror(temp_pool, parms->config_file, rc);
+
+ *current = sub_tree;
+ return NULL;
+}
+
+static const char *ap_walk_config_sub(const ap_directive_t *current,
+ cmd_parms *parms,
+ ap_conf_vector_t *section_vector)
+{
+ const command_rec *cmd;
+ ap_mod_list *ml;
+ char *dir = apr_pstrdup(parms->temp_pool, current->directive);
+
+ ap_str_tolower(dir);
+
+ ml = apr_hash_get(ap_config_hash, dir, APR_HASH_KEY_STRING);
+
+ if (ml == NULL) {
+ parms->err_directive = current;
+ if (parms->override & NONFATAL_UNKNOWN) {
+ ap_log_perror(APLOG_MARK, APLOG_WARNING, 0, parms->temp_pool,
+ APLOGNO(02296) "Unknown directive %s "
+ "perhaps misspelled or defined by a module "
+ "not included in the server configuration", dir);
+ return NULL;
+ }
+ else {
+ return apr_pstrcat(parms->pool, "Invalid command '",
+ current->directive,
+ "', perhaps misspelled or defined by a module "
+ "not included in the server configuration",
+ NULL);
+ }
+ }
+
+ for ( ; ml != NULL; ml = ml->next) {
+ void *dir_config = ap_set_config_vectors(parms->server,
+ section_vector,
+ parms->path,
+ ml->m,
+ parms->pool);
+ const char *retval;
+ cmd = ml->cmd;
+
+ /* Once was enough? */
+ if (cmd->req_override & EXEC_ON_READ) {
+ continue;
+ }
+
+ retval = invoke_cmd(cmd, parms, dir_config, current->args);
+
+ if (retval != NULL && strcmp(retval, DECLINE_CMD) != 0) {
+ /* If the directive in error has already been set, don't
+ * replace it. Otherwise, an error inside a container
+ * will be reported as occurring on the first line of the
+ * container.
+ */
+ if (!parms->err_directive) {
+ parms->err_directive = current;
+ }
+ return retval;
+ }
+ }
+
+ return NULL;
+}
+
+AP_DECLARE(const char *) ap_walk_config(ap_directive_t *current,
+ cmd_parms *parms,
+ ap_conf_vector_t *section_vector)
+{
+ ap_conf_vector_t *oldconfig = parms->context;
+
+ parms->context = section_vector;
+
+ /* scan through all directives, executing each one */
+ for (; current != NULL; current = current->next) {
+ const char *errmsg;
+
+ parms->directive = current;
+
+ /* actually parse the command and execute the correct function */
+ errmsg = ap_walk_config_sub(current, parms, section_vector);
+ if (errmsg != NULL) {
+ /* restore the context (just in case) */
+ parms->context = oldconfig;
+ return errmsg;
+ }
+ }
+
+ parms->context = oldconfig;
+ return NULL;
+}
+
+AP_DECLARE(const char *) ap_build_config(cmd_parms *parms,
+ apr_pool_t *p, apr_pool_t *temp_pool,
+ ap_directive_t **conftree)
+{
+ ap_directive_t *current = *conftree;
+ ap_directive_t *curr_parent = NULL;
+ const char *errmsg;
+ ap_directive_t **last_ptr = NULL;
+ apr_status_t rc;
+ struct ap_varbuf vb;
+ apr_size_t max_len = VARBUF_MAX_LEN;
+ if (p == temp_pool)
+ max_len = HUGE_STRING_LEN; /* lower limit for .htaccess */
+
+ ap_varbuf_init(temp_pool, &vb, VARBUF_INIT_LEN);
+
+ if (current != NULL) {
+ /* If we have to traverse the whole tree again for every included
+ * config file, the required time grows as O(n^2) with the number of
+ * files. This can be a significant delay for large configurations.
+ * Therefore we cache a pointer to the last node.
+ */
+ last_ptr = &(current->last);
+
+ if (last_ptr && *last_ptr) {
+ current = *last_ptr;
+ }
+
+ while (current->next) {
+ current = current->next;
+ }
+
+ if (last_ptr) {
+ /* update cached pointer to last node */
+ *last_ptr = current;
+ }
+ }
+
+ while ((rc = ap_varbuf_cfg_getline(&vb, parms->config_file, max_len))
+ == APR_SUCCESS) {
+ errmsg = ap_build_config_sub(p, temp_pool, vb.buf, parms,
+ &current, &curr_parent, conftree);
+ if (errmsg != NULL)
+ return errmsg;
+
+ if (*conftree == NULL && curr_parent != NULL) {
+ *conftree = curr_parent;
+ }
+
+ if (*conftree == NULL && current != NULL) {
+ *conftree = current;
+ }
+ }
+ ap_varbuf_free(&vb);
+ if (rc != APR_EOF && rc != APR_SUCCESS)
+ return ap_pcfg_strerror(temp_pool, parms->config_file, rc);
+
+ if (curr_parent != NULL) {
+ errmsg = "";
+
+ while (curr_parent != NULL) {
+ errmsg = apr_psprintf(p, "%s%s%s:%u: %s> was not closed.",
+ errmsg,
+ *errmsg == '\0' ? "" : APR_EOL_STR,
+ curr_parent->filename,
+ curr_parent->line_num,
+ curr_parent->directive);
+
+ parms->err_directive = curr_parent;
+ curr_parent = curr_parent->parent;
+ }
+
+ return errmsg;
+ }
+
+ return NULL;
+}
+
+/*
+ * Generic command functions...
+ */
+
+AP_DECLARE_NONSTD(const char *) ap_set_string_slot(cmd_parms *cmd,
+ void *struct_ptr,
+ const char *arg)
+{
+ int offset = (int)(long)cmd->info;
+
+ *(const char **)((char *)struct_ptr + offset) = arg;
+
+ return NULL;
+}
+
+AP_DECLARE_NONSTD(const char *) ap_set_int_slot(cmd_parms *cmd,
+ void *struct_ptr,
+ const char *arg)
+{
+ char *endptr;
+ char *error_str = NULL;
+ int offset = (int)(long)cmd->info;
+
+ *(int *)((char*)struct_ptr + offset) = strtol(arg, &endptr, 10);
+
+ if ((*arg == '\0') || (*endptr != '\0')) {
+ error_str = apr_psprintf(cmd->pool,
+ "Invalid value for directive %s, expected integer",
+ cmd->directive->directive);
+ }
+
+ return error_str;
+}
+
+AP_DECLARE_NONSTD(const char *) ap_set_string_slot_lower(cmd_parms *cmd,
+ void *struct_ptr,
+ const char *arg_)
+{
+ char *arg = apr_pstrdup(cmd->pool,arg_);
+ int offset = (int)(long)cmd->info;
+
+ ap_str_tolower(arg);
+ *(char **)((char *)struct_ptr + offset) = arg;
+
+ return NULL;
+}
+
+AP_DECLARE_NONSTD(const char *) ap_set_flag_slot(cmd_parms *cmd,
+ void *struct_ptr_v, int arg)
+{
+ int offset = (int)(long)cmd->info;
+ char *struct_ptr = (char *)struct_ptr_v;
+
+ *(int *)(struct_ptr + offset) = arg ? 1 : 0;
+
+ return NULL;
+}
+
+AP_DECLARE_NONSTD(const char *) ap_set_flag_slot_char(cmd_parms *cmd,
+ void *struct_ptr_v, int arg)
+{
+ int offset = (int)(long)cmd->info;
+ char *struct_ptr = (char *)struct_ptr_v;
+
+ *(struct_ptr + offset) = arg ? 1 : 0;
+
+ return NULL;
+}
+
+
+AP_DECLARE_NONSTD(const char *) ap_set_file_slot(cmd_parms *cmd, void *struct_ptr,
+ const char *arg)
+{
+ /* Prepend server_root to relative arg.
+ * This allows most args to be independent of server_root,
+ * so the server can be moved or mirrored with less pain.
+ */
+ const char *path;
+ int offset = (int)(long)cmd->info;
+
+ path = ap_server_root_relative(cmd->pool, arg);
+
+ if (!path) {
+ return apr_pstrcat(cmd->pool, cmd->cmd->name, ": Invalid file path '",
+ arg, "'", NULL);
+ }
+
+ *(const char **) ((char*)struct_ptr + offset) = path;
+
+ return NULL;
+}
+
+AP_DECLARE_NONSTD(const char *) ap_set_deprecated(cmd_parms *cmd,
+ void *struct_ptr,
+ const char *arg)
+{
+ return cmd->cmd->errmsg;
+}
+
+AP_DECLARE(void) ap_reset_module_loglevels(struct ap_logconf *l, int val)
+{
+ if (l->module_levels)
+ memset(l->module_levels, val, conf_vector_length);
+}
+
+AP_DECLARE(void) ap_set_module_loglevel(apr_pool_t *pool, struct ap_logconf *l,
+ int index, int level)
+{
+ if (!l->module_levels) {
+ l->module_levels = apr_palloc(pool, conf_vector_length);
+ if (l->level == APLOG_UNSET) {
+ ap_reset_module_loglevels(l, APLOG_UNSET);
+ }
+ else {
+ ap_reset_module_loglevels(l, APLOG_NO_MODULE);
+ }
+ }
+
+ l->module_levels[index] = level;
+}
+
+/*****************************************************************
+ *
+ * Reading whole config files...
+ */
+
+static cmd_parms default_parms =
+{NULL, 0, 0, NULL, -1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL};
+
+AP_DECLARE(char *) ap_server_root_relative(apr_pool_t *p, const char *file)
+{
+ char *newpath = NULL;
+ apr_status_t rv;
+ rv = apr_filepath_merge(&newpath, ap_server_root, file,
+ APR_FILEPATH_TRUENAME, p);
+ if (newpath && (rv == APR_SUCCESS || APR_STATUS_IS_EPATHWILD(rv)
+ || APR_STATUS_IS_ENOENT(rv)
+ || APR_STATUS_IS_ENOTDIR(rv))) {
+ return newpath;
+ }
+ else {
+ return NULL;
+ }
+}
+
+AP_DECLARE(char *) ap_runtime_dir_relative(apr_pool_t *p, const char *file)
+{
+ char *newpath = NULL;
+ apr_status_t rv;
+ const char *runtime_dir = ap_runtime_dir ? ap_runtime_dir : ap_server_root_relative(p, DEFAULT_REL_RUNTIMEDIR);
+
+ rv = apr_filepath_merge(&newpath, runtime_dir, file,
+ APR_FILEPATH_TRUENAME, p);
+ if (newpath && (rv == APR_SUCCESS || APR_STATUS_IS_EPATHWILD(rv)
+ || APR_STATUS_IS_ENOENT(rv)
+ || APR_STATUS_IS_ENOTDIR(rv))) {
+ return newpath;
+ }
+ else {
+ return NULL;
+ }
+}
+
+
+AP_DECLARE(const char *) ap_soak_end_container(cmd_parms *cmd, char *directive)
+{
+ struct ap_varbuf vb;
+ const char *args;
+ char *cmd_name;
+ apr_status_t rc;
+ apr_size_t max_len = VARBUF_MAX_LEN;
+ if (cmd->pool == cmd->temp_pool)
+ max_len = HUGE_STRING_LEN; /* lower limit for .htaccess */
+
+ ap_varbuf_init(cmd->temp_pool, &vb, VARBUF_INIT_LEN);
+
+ while ((rc = ap_varbuf_cfg_getline(&vb, cmd->config_file, max_len))
+ == APR_SUCCESS) {
+ args = vb.buf;
+
+ cmd_name = ap_getword_conf(cmd->temp_pool, &args);
+ if (cmd_name[0] == '<') {
+ if (cmd_name[1] == '/') {
+ cmd_name[strlen(cmd_name) - 1] = '\0';
+
+ if (ap_cstr_casecmp(cmd_name + 2, directive + 1) != 0) {
+ return apr_pstrcat(cmd->pool, "Expected </",
+ directive + 1, "> but saw ",
+ cmd_name, ">", NULL);
+ }
+
+ ap_varbuf_free(&vb);
+ return NULL; /* found end of container */
+ }
+ else {
+ const char *msg;
+
+ if (*args == '\0' && cmd_name[strlen(cmd_name) - 1] == '>') {
+ cmd_name[strlen(cmd_name) - 1] = '\0';
+ }
+
+ if ((msg = ap_soak_end_container(cmd, cmd_name)) != NULL) {
+ return msg;
+ }
+ }
+ }
+ }
+ if (rc != APR_EOF && rc != APR_SUCCESS)
+ return ap_pcfg_strerror(cmd->temp_pool, cmd->config_file, rc);
+
+ return apr_pstrcat(cmd->pool, "Expected </",
+ directive + 1, "> before end of configuration",
+ NULL);
+}
+
+static const char *execute_now(char *cmd_line, const char *args,
+ cmd_parms *parms,
+ apr_pool_t *p, apr_pool_t *ptemp,
+ ap_directive_t **sub_tree,
+ ap_directive_t *parent)
+{
+ const command_rec *cmd;
+ ap_mod_list *ml;
+ char *dir = apr_pstrdup(parms->temp_pool, cmd_line);
+
+ ap_str_tolower(dir);
+
+ ml = apr_hash_get(ap_config_hash, dir, APR_HASH_KEY_STRING);
+
+ if (ml == NULL) {
+ return apr_pstrcat(parms->pool, "Invalid command '",
+ cmd_line,
+ "', perhaps misspelled or defined by a module "
+ "not included in the server configuration",
+ NULL);
+ }
+
+ for ( ; ml != NULL; ml = ml->next) {
+ const char *retval;
+ cmd = ml->cmd;
+
+ retval = invoke_cmd(cmd, parms, sub_tree, args);
+
+ if (retval != NULL) {
+ return retval;
+ }
+ }
+
+ return NULL;
+}
+
+/* This structure and the following functions are needed for the
+ * table-based config file reading. They are passed to the
+ * cfg_open_custom() routine.
+ */
+
+/* Structure to be passed to cfg_open_custom(): it contains an
+ * index which is incremented from 0 to nelts on each call to
+ * cfg_getline() (which in turn calls arr_elts_getstr())
+ * and an apr_array_header_t pointer for the string array.
+ */
+typedef struct {
+ apr_array_header_t *array;
+ int curr_idx;
+} arr_elts_param_t;
+
+
+/* arr_elts_getstr() returns the next line from the string array. */
+static apr_status_t arr_elts_getstr(void *buf, apr_size_t bufsiz, void *param)
+{
+ arr_elts_param_t *arr_param = (arr_elts_param_t *)param;
+ const char *elt;
+
+ /* End of array reached? */
+ if (++arr_param->curr_idx > arr_param->array->nelts)
+ return APR_EOF;
+
+ /* return the line */
+ elt = ((const char **)arr_param->array->elts)[arr_param->curr_idx - 1];
+ if (apr_cpystrn(buf, elt, bufsiz) - (char *)buf >= bufsiz - 1)
+ return APR_ENOSPC;
+ return APR_SUCCESS;
+}
+
+
+/* arr_elts_close(): dummy close routine (makes sure no more lines can be read) */
+static apr_status_t arr_elts_close(void *param)
+{
+ arr_elts_param_t *arr_param = (arr_elts_param_t *)param;
+
+ arr_param->curr_idx = arr_param->array->nelts;
+
+ return APR_SUCCESS;
+}
+
+static const char *process_command_config(server_rec *s,
+ apr_array_header_t *arr,
+ ap_directive_t **conftree,
+ apr_pool_t *p,
+ apr_pool_t *ptemp)
+{
+ const char *errmsg;
+ cmd_parms parms;
+ arr_elts_param_t arr_parms;
+
+ arr_parms.curr_idx = 0;
+ arr_parms.array = arr;
+
+ if (ap_config_hash == NULL) {
+ rebuild_conf_hash(s->process->pconf, 1);
+ }
+
+ parms = default_parms;
+ parms.pool = p;
+ parms.temp_pool = ptemp;
+ parms.server = s;
+ parms.override = (RSRC_CONF | OR_ALL) & ~(OR_AUTHCFG | OR_LIMIT);
+ parms.override_opts = OPT_ALL | OPT_SYM_OWNER | OPT_MULTI;
+
+ parms.config_file = ap_pcfg_open_custom(p, "-c/-C directives",
+ &arr_parms, NULL,
+ arr_elts_getstr, arr_elts_close);
+
+ errmsg = ap_build_config(&parms, p, ptemp, conftree);
+ ap_cfg_closefile(parms.config_file);
+
+ if (errmsg) {
+ return apr_pstrcat(p, "Syntax error in -C/-c directive: ", errmsg,
+ NULL);
+ }
+
+ return NULL;
+}
+
+/**
+ * Used by -D DUMP_INCLUDES to output the config file "tree".
+ */
+static void dump_config_name(const char *fname, apr_pool_t *p)
+{
+ unsigned i, recursion, line_number;
+ void *data;
+ apr_file_t *out = NULL;
+
+ apr_file_open_stdout(&out, p);
+
+ /* ap_include_sentinel is defined by the core Include directive; use it to
+ * figure out how deep in the stack we are.
+ */
+ apr_pool_userdata_get(&data, "ap_include_sentinel", p);
+
+ if (data) {
+ recursion = *(unsigned *)data;
+ } else {
+ recursion = 0;
+ }
+
+ /* Indent once for each level. */
+ for (i = 0; i < (recursion + 1); ++i) {
+ apr_file_printf(out, " ");
+ }
+
+ /* ap_include_lineno is similarly defined to tell us where in the last
+ * config file we were.
+ */
+ apr_pool_userdata_get(&data, "ap_include_lineno", p);
+
+ if (data) {
+ line_number = *(unsigned *)data;
+ } else {
+ line_number = 0;
+ }
+
+ /* Print the line number and the name of the parsed file. */
+ if (line_number > 0) {
+ apr_file_printf(out, "(%u)", line_number);
+ } else {
+ apr_file_printf(out, "(*)");
+ }
+
+ apr_file_printf(out, " %s\n", fname);
+}
+
+AP_DECLARE(const char *) ap_process_resource_config(server_rec *s,
+ const char *fname,
+ ap_directive_t **conftree,
+ apr_pool_t *p,
+ apr_pool_t *ptemp)
+{
+ ap_configfile_t *cfp;
+ cmd_parms parms;
+ apr_status_t rv;
+ const char *error;
+
+ parms = default_parms;
+ parms.pool = p;
+ parms.temp_pool = ptemp;
+ parms.server = s;
+ parms.override = (RSRC_CONF | OR_ALL) & ~(OR_AUTHCFG | OR_LIMIT);
+ parms.override_opts = OPT_ALL | OPT_SYM_OWNER | OPT_MULTI;
+
+ rv = ap_pcfg_openfile(&cfp, p, fname);
+ if (rv != APR_SUCCESS) {
+ return apr_psprintf(p, "Could not open configuration file %s: %pm",
+ fname, &rv);
+ }
+
+ if (ap_exists_config_define("DUMP_INCLUDES")) {
+ dump_config_name(fname, p);
+ }
+
+ parms.config_file = cfp;
+ error = ap_build_config(&parms, p, ptemp, conftree);
+ ap_cfg_closefile(cfp);
+
+ if (error) {
+ if (parms.err_directive)
+ return apr_psprintf(p, "Syntax error on line %d of %s: %s",
+ parms.err_directive->line_num,
+ parms.err_directive->filename, error);
+ else
+ return error;
+ }
+
+ return NULL;
+}
+
+typedef struct {
+ server_rec *s;
+ ap_directive_t **conftree;
+} configs;
+
+static const char *process_resource_config_cb(ap_dir_match_t *w, const char *fname)
+{
+ configs *cfgs = w->ctx;
+ return ap_process_resource_config(cfgs->s, fname, cfgs->conftree, w->p, w->ptemp);
+}
+
+AP_DECLARE(const char *) ap_process_fnmatch_configs(server_rec *s,
+ const char *fname,
+ ap_directive_t **conftree,
+ apr_pool_t *p,
+ apr_pool_t *ptemp,
+ int optional)
+{
+ configs cfgs;
+ ap_dir_match_t w;
+
+ cfgs.s = s;
+ cfgs.conftree = conftree;
+
+ w.prefix = "Include/IncludeOptional: ";
+ w.p = p;
+ w.ptemp = ptemp;
+ w.flags = (optional ? AP_DIR_FLAG_OPTIONAL : AP_DIR_FLAG_NONE) | AP_DIR_FLAG_RECURSIVE;
+ w.cb = process_resource_config_cb;
+ w.ctx = &cfgs;
+ w.depth = 0;
+
+ /* don't require conf/httpd.conf if we have a -C or -c switch */
+ if ((ap_server_pre_read_config->nelts
+ || ap_server_post_read_config->nelts)
+ && !(strcmp(fname, ap_server_root_relative(ptemp, SERVER_CONFIG_FILE)))) {
+ apr_finfo_t finfo;
+
+ if (apr_stat(&finfo, fname, APR_FINFO_LINK | APR_FINFO_TYPE, ptemp) != APR_SUCCESS)
+ return NULL;
+ }
+
+ if (!apr_fnmatch_test(fname)) {
+ return ap_dir_nofnmatch(&w, fname);
+ }
+ else {
+ apr_status_t status;
+ const char *rootpath, *filepath = fname;
+
+ /* locate the start of the directories proper */
+ status = apr_filepath_root(&rootpath, &filepath, APR_FILEPATH_TRUENAME, ptemp);
+
+ /* we allow APR_SUCCESS and APR_EINCOMPLETE */
+ if (APR_ERELATIVE == status) {
+ return apr_pstrcat(p, "Include must have an absolute path, ", fname, NULL);
+ }
+ else if (APR_EBADPATH == status) {
+ return apr_pstrcat(p, "Include has a bad path, ", fname, NULL);
+ }
+
+ /* walk the filepath */
+ return ap_dir_fnmatch(&w, rootpath, filepath);
+ }
+}
+
+AP_DECLARE(int) ap_process_config_tree(server_rec *s,
+ ap_directive_t *conftree,
+ apr_pool_t *p,
+ apr_pool_t *ptemp)
+{
+ const char *errmsg;
+ cmd_parms parms;
+
+ parms = default_parms;
+ parms.pool = p;
+ parms.temp_pool = ptemp;
+ parms.server = s;
+ parms.override = (RSRC_CONF | OR_ALL) & ~(OR_AUTHCFG | OR_LIMIT);
+ parms.override_opts = OPT_ALL | OPT_SYM_OWNER | OPT_MULTI;
+ parms.limited = -1;
+
+ errmsg = ap_walk_config(conftree, &parms, s->lookup_defaults);
+ if (errmsg) {
+ if (parms.err_directive)
+ ap_log_perror(APLOG_MARK, APLOG_STARTUP, 0, p, APLOGNO(00526)
+ "Syntax error on line %d of %s:",
+ parms.err_directive->line_num,
+ parms.err_directive->filename);
+ ap_log_perror(APLOG_MARK, APLOG_STARTUP, 0, p, "%s", errmsg);
+ return HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ return OK;
+}
+
+apr_status_t ap_open_htaccess(request_rec *r, const char *dir_name,
+ const char *access_name,
+ ap_configfile_t **conffile,
+ const char **full_name)
+{
+ *full_name = ap_make_full_path(r->pool, dir_name, access_name);
+ return ap_pcfg_openfile(conffile, r->pool, *full_name);
+}
+
+AP_CORE_DECLARE(int) ap_parse_htaccess(ap_conf_vector_t **result,
+ request_rec *r, int override,
+ int override_opts, apr_table_t *override_list,
+ const char *d, const char *access_names)
+{
+ ap_configfile_t *f = NULL;
+ cmd_parms parms;
+ const char *filename;
+ const struct htaccess_result *cache;
+ struct htaccess_result *new;
+ ap_conf_vector_t *dc = NULL;
+ apr_status_t status;
+
+ /* firstly, search cache */
+ for (cache = r->htaccess; cache != NULL; cache = cache->next) {
+ if (cache->override == override && strcmp(cache->dir, d) == 0) {
+ *result = cache->htaccess;
+ return OK;
+ }
+ }
+
+ parms = default_parms;
+ parms.override = override;
+ parms.override_opts = override_opts;
+ parms.override_list = override_list;
+ parms.pool = r->pool;
+ parms.temp_pool = r->pool;
+ parms.server = r->server;
+ parms.path = apr_pstrdup(r->pool, d);
+
+ /* loop through the access names and find the first one */
+ while (access_names[0]) {
+ const char *access_name = ap_getword_conf(r->pool, &access_names);
+
+ filename = NULL;
+ status = ap_run_open_htaccess(r, d, access_name, &f, &filename);
+ if (status == APR_SUCCESS) {
+ const char *errmsg;
+ ap_directive_t *temptree = NULL;
+
+ dc = ap_create_per_dir_config(r->pool);
+
+ parms.config_file = f;
+ errmsg = ap_build_config(&parms, r->pool, r->pool, &temptree);
+ if (errmsg == NULL)
+ errmsg = ap_walk_config(temptree, &parms, dc);
+
+ ap_cfg_closefile(f);
+
+ if (errmsg) {
+ ap_log_rerror(APLOG_MARK, APLOG_ALERT, 0, r,
+ "%s: %s", filename, errmsg);
+ return HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ *result = dc;
+ break;
+ }
+ else {
+ if (!APR_STATUS_IS_ENOENT(status)
+ && !APR_STATUS_IS_ENOTDIR(status)) {
+ ap_log_rerror(APLOG_MARK, APLOG_CRIT, status, r, APLOGNO(00529)
+ "%s pcfg_openfile: unable to check htaccess file, "
+ "ensure it is readable and that '%s' "
+ "is executable",
+ filename, d);
+ apr_table_setn(r->notes, "error-notes",
+ "Server unable to read htaccess file, denying "
+ "access to be safe");
+ return HTTP_FORBIDDEN;
+ }
+ }
+ }
+
+ /* cache it */
+ new = apr_palloc(r->pool, sizeof(struct htaccess_result));
+ new->dir = parms.path;
+ new->override = override;
+ new->override_opts = override_opts;
+ new->htaccess = dc;
+
+ /* add to head of list */
+ new->next = r->htaccess;
+ r->htaccess = new;
+
+ return OK;
+}
+
+AP_CORE_DECLARE(const char *) ap_init_virtual_host(apr_pool_t *p,
+ const char *hostname,
+ server_rec *main_server,
+ server_rec **ps)
+{
+ server_rec *s = (server_rec *) apr_pcalloc(p, sizeof(server_rec));
+
+ /* TODO: this crap belongs in http_core */
+ s->process = main_server->process;
+ s->server_admin = NULL;
+ s->server_hostname = NULL;
+ s->server_scheme = NULL;
+ s->error_fname = NULL;
+ s->timeout = 0;
+ s->keep_alive_timeout = 0;
+ s->keep_alive = -1;
+ s->keep_alive_max = -1;
+ s->error_log = main_server->error_log;
+ s->log.level = APLOG_UNSET;
+ s->log.module_levels = NULL;
+ /* useful default, otherwise we get a port of 0 on redirects */
+ s->port = main_server->port;
+ s->next = NULL;
+
+ s->is_virtual = 1;
+ s->names = apr_array_make(p, 4, sizeof(char **));
+ s->wild_names = apr_array_make(p, 4, sizeof(char **));
+
+ s->module_config = create_empty_config(p);
+ s->lookup_defaults = ap_create_per_dir_config(p);
+
+ s->limit_req_line = main_server->limit_req_line;
+ s->limit_req_fieldsize = main_server->limit_req_fieldsize;
+ s->limit_req_fields = main_server->limit_req_fields;
+
+ *ps = s;
+
+ return ap_parse_vhost_addrs(p, hostname, s);
+}
+
+AP_DECLARE(struct ap_logconf *) ap_new_log_config(apr_pool_t *p,
+ const struct ap_logconf *old)
+{
+ struct ap_logconf *l = apr_pcalloc(p, sizeof(struct ap_logconf));
+ if (old) {
+ l->level = old->level;
+ if (old->module_levels) {
+ l->module_levels =
+ apr_pmemdup(p, old->module_levels, conf_vector_length);
+ }
+ }
+ else {
+ l->level = APLOG_UNSET;
+ }
+ return l;
+}
+
+AP_DECLARE(void) ap_merge_log_config(const struct ap_logconf *old_conf,
+ struct ap_logconf *new_conf)
+{
+ if (new_conf->level != APLOG_UNSET) {
+ /* Setting the main loglevel resets all per-module log levels.
+ * I.e. if new->level has been set, we must ignore old->module_levels.
+ */
+ return;
+ }
+
+ new_conf->level = old_conf->level;
+ if (new_conf->module_levels == NULL) {
+ new_conf->module_levels = old_conf->module_levels;
+ }
+ else if (old_conf->module_levels != NULL) {
+ int i;
+ for (i = 0; i < conf_vector_length; i++) {
+ if (new_conf->module_levels[i] == APLOG_UNSET)
+ new_conf->module_levels[i] = old_conf->module_levels[i];
+ }
+ }
+}
+
+AP_DECLARE(void) ap_fixup_virtual_hosts(apr_pool_t *p, server_rec *main_server)
+{
+ server_rec *virt;
+ core_dir_config *dconf =
+ ap_get_core_module_config(main_server->lookup_defaults);
+ dconf->log = &main_server->log;
+
+ for (virt = main_server->next; virt; virt = virt->next) {
+ merge_server_configs(p, main_server->module_config, virt);
+
+ virt->lookup_defaults =
+ ap_merge_per_dir_configs(p, main_server->lookup_defaults,
+ virt->lookup_defaults);
+
+ if (virt->server_admin == NULL)
+ virt->server_admin = main_server->server_admin;
+
+ if (virt->timeout == 0)
+ virt->timeout = main_server->timeout;
+
+ if (virt->keep_alive_timeout == 0)
+ virt->keep_alive_timeout = main_server->keep_alive_timeout;
+
+ if (virt->keep_alive == -1)
+ virt->keep_alive = main_server->keep_alive;
+
+ if (virt->keep_alive_max == -1)
+ virt->keep_alive_max = main_server->keep_alive_max;
+
+ ap_merge_log_config(&main_server->log, &virt->log);
+
+ dconf = ap_get_core_module_config(virt->lookup_defaults);
+ dconf->log = &virt->log;
+
+ /* XXX: this is really something that should be dealt with by a
+ * post-config api phase
+ */
+ ap_core_reorder_directories(p, virt);
+ }
+
+ ap_core_reorder_directories(p, main_server);
+}
+
+/*****************************************************************
+ *
+ * Getting *everything* configured...
+ */
+
+static void init_config_globals(apr_pool_t *p)
+{
+ /* Global virtual host hash bucket pointers. Init to null. */
+ ap_init_vhost_config(p);
+}
+
+static server_rec *init_server_config(process_rec *process, apr_pool_t *p)
+{
+ apr_status_t rv;
+ server_rec *s = (server_rec *) apr_pcalloc(p, sizeof(server_rec));
+
+ apr_file_open_stderr(&s->error_log, p);
+ s->process = process;
+ s->port = 0;
+ s->server_admin = DEFAULT_ADMIN;
+ s->server_hostname = NULL;
+ s->server_scheme = NULL;
+ s->error_fname = DEFAULT_ERRORLOG;
+ s->log.level = DEFAULT_LOGLEVEL;
+ s->log.module_levels = NULL;
+ s->limit_req_line = DEFAULT_LIMIT_REQUEST_LINE;
+ s->limit_req_fieldsize = DEFAULT_LIMIT_REQUEST_FIELDSIZE;
+ s->limit_req_fields = DEFAULT_LIMIT_REQUEST_FIELDS;
+ s->timeout = apr_time_from_sec(DEFAULT_TIMEOUT);
+ s->keep_alive_timeout = apr_time_from_sec(DEFAULT_KEEPALIVE_TIMEOUT);
+ s->keep_alive_max = DEFAULT_KEEPALIVE;
+ s->keep_alive = 1;
+ s->next = NULL;
+ s->addrs = apr_pcalloc(p, sizeof(server_addr_rec));
+
+ /* NOT virtual host; don't match any real network interface */
+ rv = apr_sockaddr_info_get(&s->addrs->host_addr,
+ NULL, APR_UNSPEC, 0, 0, p);
+ if (rv != APR_SUCCESS) {
+ /* should we test here for rv being an EAIERR? */
+ ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_CRIT, rv, NULL, APLOGNO(00530)
+ "initialisation: bug or getaddrinfo fail");
+ return NULL;
+ }
+
+ s->addrs->host_port = 0; /* matches any port */
+ s->addrs->virthost = ""; /* must be non-NULL */
+ s->names = s->wild_names = NULL;
+
+ s->module_config = create_server_config(p, s);
+ s->lookup_defaults = create_default_per_dir_config(p);
+
+ return s;
+}
+
+
+static apr_status_t reset_conf_vector_length(void *dummy)
+{
+ reserved_module_slots = 0;
+ conf_vector_length = max_modules;
+ return APR_SUCCESS;
+}
+
+static int conf_vector_length_pre_config(apr_pool_t *pconf, apr_pool_t *plog,
+ apr_pool_t *ptemp)
+{
+ /*
+ * We have loaded all modules that are loaded by EXEC_ON_READ directives.
+ * From now on we reduce the size of the config vectors to what we need,
+ * plus what has been reserved (e.g. by mod_perl) for additional modules
+ * loaded later on.
+ * If max_modules is too small, ap_add_module() will abort.
+ */
+ if (total_modules + reserved_module_slots < max_modules) {
+ conf_vector_length = total_modules + reserved_module_slots;
+ }
+ apr_pool_cleanup_register(pconf, NULL, reset_conf_vector_length,
+ apr_pool_cleanup_null);
+ return OK;
+}
+
+
+AP_CORE_DECLARE(void) ap_register_config_hooks(apr_pool_t *p)
+{
+ ap_hook_pre_config(conf_vector_length_pre_config, NULL, NULL,
+ APR_HOOK_REALLY_LAST);
+}
+
+AP_DECLARE(server_rec*) ap_read_config(process_rec *process, apr_pool_t *ptemp,
+ const char *filename,
+ ap_directive_t **conftree)
+{
+ const char *confname, *error;
+ apr_pool_t *p = process->pconf;
+ server_rec *s = init_server_config(process, p);
+ if (s == NULL) {
+ return s;
+ }
+
+ init_config_globals(p);
+
+ if (ap_exists_config_define("DUMP_INCLUDES")) {
+ apr_file_t *out = NULL;
+ apr_file_open_stdout(&out, p);
+
+ /* Included files will be dumped as the config is walked; print a
+ * header.
+ */
+ apr_file_printf(out, "Included configuration files:\n");
+ }
+
+ /* All server-wide config files now have the SAME syntax... */
+ error = process_command_config(s, ap_server_pre_read_config, conftree,
+ p, ptemp);
+ if (error) {
+ ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_CRIT, 0, NULL, "%s: %s",
+ ap_server_argv0, error);
+ return NULL;
+ }
+
+ /* process_command_config may change the ServerRoot so
+ * compute this config file name afterwards.
+ */
+ confname = ap_server_root_relative(p, filename);
+
+ if (!confname) {
+ ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_CRIT,
+ APR_EBADPATH, NULL, APLOGNO(00532) "Invalid config file path %s",
+ filename);
+ return NULL;
+ }
+
+ error = ap_process_resource_config(s, confname, conftree, p, ptemp);
+ if (error) {
+ ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_CRIT, 0, NULL,
+ "%s: %s", ap_server_argv0, error);
+ return NULL;
+ }
+
+ error = ap_check_mpm();
+ if (error) {
+ ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_CRIT, 0, NULL, APLOGNO(00534)
+ "%s: Configuration error: %s", ap_server_argv0, error);
+ return NULL;
+ }
+
+ error = process_command_config(s, ap_server_post_read_config, conftree,
+ p, ptemp);
+
+ if (error) {
+ ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_CRIT, 0, NULL, "%s: %s",
+ ap_server_argv0, error);
+ return NULL;
+ }
+
+ return s;
+}
+
+AP_DECLARE(void) ap_single_module_configure(apr_pool_t *p, server_rec *s,
+ module *m)
+{
+ if (m->create_server_config)
+ ap_set_module_config(s->module_config, m,
+ (*m->create_server_config)(p, s));
+
+ if (m->create_dir_config)
+ ap_set_module_config(s->lookup_defaults, m,
+ (*m->create_dir_config)(p, NULL));
+}
+
+AP_DECLARE(void) ap_run_rewrite_args(process_rec *process)
+{
+ module *m;
+
+ for (m = ap_top_module; m; m = m->next) {
+ if (m->rewrite_args) {
+ (*m->rewrite_args)(process);
+ }
+ }
+}
+
+/********************************************************************
+ * Configuration directives are restricted in terms of where they may
+ * appear in the main configuration files and/or .htaccess files according
+ * to the bitmask req_override in the command_rec structure.
+ * If any of the overrides set in req_override are also allowed in the
+ * context in which the command is read, then the command is allowed.
+ * The context is determined as follows:
+ *
+ * inside *.conf --> override = (RSRC_CONF|OR_ALL)&~(OR_AUTHCFG|OR_LIMIT);
+ * within <Directory> or <Location> --> override = OR_ALL|ACCESS_CONF;
+ * within .htaccess --> override = AllowOverride for current directory;
+ *
+ * the result is, well, a rather confusing set of possibilities for when
+ * a particular directive is allowed to be used. This procedure prints
+ * in English where the given (pc) directive can be used.
+ */
+static void show_overrides(const command_rec *pc, module *pm)
+{
+ int n = 0;
+
+ printf("\tAllowed in *.conf ");
+ if ((pc->req_override & (OR_OPTIONS | OR_FILEINFO | OR_INDEXES))
+ || ((pc->req_override & RSRC_CONF)
+ && ((pc->req_override & (ACCESS_CONF | OR_AUTHCFG | OR_LIMIT))))) {
+ printf("anywhere");
+ }
+ else if (pc->req_override & RSRC_CONF) {
+ printf("only outside <Directory>, <Files>, <Location>, or <If>");
+ }
+ else {
+ printf("only inside <Directory>, <Files>, <Location>, or <If>");
+ }
+
+ /* Warn if the directive is allowed inside <Directory> or .htaccess
+ * but module doesn't support per-dir configuration
+ */
+ if ((pc->req_override & (OR_ALL | ACCESS_CONF)) && !pm->create_dir_config)
+ printf(" [no per-dir config]");
+
+ if (pc->req_override & OR_ALL) {
+ printf(" and in .htaccess\n\twhen AllowOverride");
+
+ if ((pc->req_override & OR_ALL) == OR_ALL) {
+ printf(" isn't None");
+ }
+ else {
+ printf(" includes ");
+
+ if (pc->req_override & OR_AUTHCFG) {
+ if (n++)
+ printf(" or ");
+
+ printf("AuthConfig");
+ }
+
+ if (pc->req_override & OR_LIMIT) {
+ if (n++)
+ printf(" or ");
+
+ printf("Limit");
+ }
+
+ if (pc->req_override & OR_OPTIONS) {
+ if (n++)
+ printf(" or ");
+
+ printf("Options");
+ }
+
+ if (pc->req_override & OR_FILEINFO) {
+ if (n++)
+ printf(" or ");
+
+ printf("FileInfo");
+ }
+
+ if (pc->req_override & OR_INDEXES) {
+ if (n++)
+ printf(" or ");
+
+ printf("Indexes");
+ }
+ }
+ }
+
+ printf("\n");
+}
+
+/* Show the preloaded configuration directives, the help string explaining
+ * the directive arguments, in what module they are handled, and in
+ * what parts of the configuration they are allowed. Used for httpd -L.
+ */
+AP_DECLARE(void) ap_show_directives(void)
+{
+ const command_rec *pc;
+ int n;
+
+ for (n = 0; ap_loaded_modules[n]; ++n) {
+ for (pc = ap_loaded_modules[n]->cmds; pc && pc->name; ++pc) {
+ printf("%s (%s)\n", pc->name, ap_loaded_modules[n]->name);
+
+ if (pc->errmsg)
+ printf("\t%s\n", pc->errmsg);
+
+ show_overrides(pc, ap_loaded_modules[n]);
+ }
+ }
+}
+
+/* Show the preloaded module names. Used for httpd -l. */
+AP_DECLARE(void) ap_show_modules(void)
+{
+ int n;
+
+ printf("Compiled in modules:\n");
+ for (n = 0; ap_loaded_modules[n]; ++n)
+ printf(" %s\n", ap_loaded_modules[n]->name);
+}
+
+AP_DECLARE(int) ap_exists_directive(apr_pool_t *p, const char *name)
+{
+ char *lname = apr_pstrdup(p, name);
+
+ ap_str_tolower(lname);
+
+ return ap_config_hash &&
+ apr_hash_get(ap_config_hash, lname, APR_HASH_KEY_STRING) != NULL;
+}
+
+AP_DECLARE(void *) ap_retained_data_get(const char *key)
+{
+ void *retained;
+
+ apr_pool_userdata_get((void *)&retained, key, ap_pglobal);
+ return retained;
+}
+
+AP_DECLARE(void *) ap_retained_data_create(const char *key, apr_size_t size)
+{
+ void *retained;
+
+ retained = apr_pcalloc(ap_pglobal, size);
+ apr_pool_userdata_set((const void *)retained, key, apr_pool_cleanup_null, ap_pglobal);
+ return retained;
+}
+
+static int count_directives_sub(const char *directive, ap_directive_t *current)
+{
+ int count = 0;
+ while (current != NULL) {
+ if (current->first_child != NULL)
+ count += count_directives_sub(directive, current->first_child);
+ if (ap_cstr_casecmp(current->directive, directive) == 0)
+ count++;
+ current = current->next;
+ }
+ return count;
+}
+
+AP_DECLARE(void) ap_reserve_module_slots(int count)
+{
+ reserved_module_slots += count;
+}
+
+AP_DECLARE(void) ap_reserve_module_slots_directive(const char *directive)
+{
+ ap_reserve_module_slots(count_directives_sub(directive, ap_conftree));
+}