842ae4bd224140319ae7feec1872b93dfd491143fielding/* Licensed to the Apache Software Foundation (ASF) under one or more
842ae4bd224140319ae7feec1872b93dfd491143fielding * contributor license agreements. See the NOTICE file distributed with
842ae4bd224140319ae7feec1872b93dfd491143fielding * this work for additional information regarding copyright ownership.
842ae4bd224140319ae7feec1872b93dfd491143fielding * The ASF licenses this file to You under the Apache License, Version 2.0
842ae4bd224140319ae7feec1872b93dfd491143fielding * (the "License"); you may not use this file except in compliance with
842ae4bd224140319ae7feec1872b93dfd491143fielding * the License. You may obtain a copy of the License at
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd * Unless required by applicable law or agreed to in writing, software
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd * distributed under the License is distributed on an "AS IS" BASIS,
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd * See the License for the specific language governing permissions and
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd * limitations under the License.
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh * @brief functions to get and process requests
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh * @author Rob McCool 3/21/93
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * Thoroughly revamped by rst for Apache. NB this file reads
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * best from the bottom up.
7184de27ec1d62a83c41cdeac0953ca9fd661e8csf/* we know core's module_index is 0 */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_IMPLEMENT_HOOK_VOID(insert_filter, (request_rec *r), (r))
f4ca9f6f002fece336168a16355434ca966f96a9trawickAP_IMPLEMENT_HOOK_RUN_FIRST(apr_status_t,dirwalk_stat,
f4ca9f6f002fece336168a16355434ca966f96a9trawick (apr_finfo_t *finfo, request_rec *r, apr_int32_t wanted),
963f8b44ac95132458ea3b6aaa8ebc135188e473takashistatic int decl_die(int status, const char *phase, request_rec *r)
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_CRIT, 0, r, APLOGNO(00025)
c2cf53a40a9814eb91db2cdf820f97d943f21628coar "configuration error: couldn't %s: %s", phase, r->uri);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe/* This is the master logic for processing requests. Do NOT duplicate
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe * this logic elsewhere, or the security model will be broken by future
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe * API changes. Each phase must be individually optimized to pick up
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe * redundant/duplicate calls by subrequests, and redirects.
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewroweAP_DECLARE(int) ap_process_request_internal(request_rec *r)
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe /* Ignore embedded %2F's in path for proxy requests */
3770ed746d69c7a4111cba9966169bd5d7a509a6poirier access_status = ap_unescape_url_keep2f(r->parsed_uri.path, d->decode_encoded_slashes);
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(00026)
8419e6f8bff1a3617933f3ba760d2bdec7442f44coar "found %%2f (encoded '/') in URI "
8419e6f8bff1a3617933f3ba760d2bdec7442f44coar "(decoded='%s'), returning 404",
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe ap_getparents(r->uri); /* OK --- shrinking transformations... */
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* All file subrequests are a huge pain... they cannot bubble through the
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * next several steps. Only file subrequests are allowed an empty uri,
3e392a5afd51526de3cb15d57ee46d8cb160ae65gregames * otherwise let translate_name kill the request.
bd3f5647b96d378d9c75c954e3f13582af32c643sf /* Don't set per-dir loglevel if LogLevelOverride is set */
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* Reset to the server default config prior to running map_to_storage
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe /* This request wasn't in storage (e.g. TRACE) */
11a0edf478ca9c59d80bf73491d89cf019259feeniq /* Rerun the location walk, which overrides any map_to_storage config.
bd3f5647b96d378d9c75c954e3f13582af32c643sf /* Don't set per-dir loglevel if LogLevelOverride is set */
60a765cccbd3f3b5997b65b0034220c79f78369etrawick if ((access_status = ap_run_post_perdir_config(r))) {
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe /* Only on the main request! */
fa06de8a28a737e8fbaad76d7f3ff67aaa5e4a09wrowe /* Skip authn/authz if the parent or prior request passed the authn/authz,
fa06de8a28a737e8fbaad76d7f3ff67aaa5e4a09wrowe * and that configuration didn't change (this requires optimized _walk()
fa06de8a28a737e8fbaad76d7f3ff67aaa5e4a09wrowe * functions in map_to_storage that use the same merge results given
fa06de8a28a737e8fbaad76d7f3ff67aaa5e4a09wrowe * identical input.) If the config changes, we must re-auth.
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd if (r->prev && (r->prev->per_dir_config == r->per_dir_config)) {
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd else if (r->main && (r->main->per_dir_config == r->per_dir_config)) {
0d26b42fc1735e110c6dc83b114c56257b20070bbnicholes if ((access_status = ap_run_access_checker(r)) != OK) {
18b5268e013574026b2503b1641baf3299045f45sf "check access (with Satisfy All)", r);
18b5268e013574026b2503b1641baf3299045f45sf "request authorized without authentication by "
1a7a4f8c6a312cb237e428c77da0792eb165dc7aniq /* don't let buggy authn module crash us in authz */
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00027)
60fc37bb7b498f4bba5eaaa73a42a25daa27a9dasf "No authentication done but request not "
60fc37bb7b498f4bba5eaaa73a42a25daa27a9dasf "allowed without authentication for %s. "
60fc37bb7b498f4bba5eaaa73a42a25daa27a9dasf "Authentication not configured?",
18b5268e013574026b2503b1641baf3299045f45sf return decl_die(access_status, "check authorization", r);
18b5268e013574026b2503b1641baf3299045f45sf "request authorized without authentication by "
18b5268e013574026b2503b1641baf3299045f45sf "access_checker hook and 'Satisfy any': %s",
18b5268e013574026b2503b1641baf3299045f45sf "request authorized without authentication by "
0d26b42fc1735e110c6dc83b114c56257b20070bbnicholes if ((access_status = ap_run_check_user_id(r)) != OK) {
69bbd0a9d1892949e1d4e454c10e8ad24b37c759sf /* don't let buggy authn module crash us in authz */
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00028)
60fc37bb7b498f4bba5eaaa73a42a25daa27a9dasf "No authentication done but request not "
60fc37bb7b498f4bba5eaaa73a42a25daa27a9dasf "allowed without authentication for %s. "
60fc37bb7b498f4bba5eaaa73a42a25daa27a9dasf "Authentication not configured?",
0d26b42fc1735e110c6dc83b114c56257b20070bbnicholes if ((access_status = ap_run_auth_checker(r)) != OK) {
0d26b42fc1735e110c6dc83b114c56257b20070bbnicholes return decl_die(access_status, "check authorization", r);
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe /* XXX Must make certain the ap_run_type_checker short circuits mime
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * in mod-proxy for r->proxyreq && r->parsed_uri.scheme
83a8dc5a596a8a1b9d14f063268287d123b9ed7ewrowe * && !strcmp(r->parsed_uri.scheme, "http")
d176cb9e596e4603f76490f9211f62b5581b3091rooneg if ((access_status = ap_run_type_checker(r)) != OK) {
d4abb06ac220bb280ae996b6d21bbd257db51bb1jerenkrantz return decl_die(access_status, "find types", r);
4760b58cc9fe170e4ad4648ed4ff7a422a2cef38sf ap_log_rerror(APLOG_MARK, APLOG_TRACE3, 0, r, "fixups hook gave %d: %s",
cc9582e53aead2a044077c4a92f3dfc3605590b3wrowe/* Useful caching structures to repeat _walk/merge sequences as required
cc9582e53aead2a044077c4a92f3dfc3605590b3wrowe * when a subrequest or redirect reuses substantially the same config.
cc9582e53aead2a044077c4a92f3dfc3605590b3wrowe * Directive order in the httpd.conf file and its Includes significantly
cc9582e53aead2a044077c4a92f3dfc3605590b3wrowe * impact this optimization. Grouping common blocks at the front of the
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * config that are less likely to change between a request and
cc9582e53aead2a044077c4a92f3dfc3605590b3wrowe * its subrequests, or between a request and its redirects reduced
cc9582e53aead2a044077c4a92f3dfc3605590b3wrowe * the work of these functions significantly.
cc9582e53aead2a044077c4a92f3dfc3605590b3wrowe ap_conf_vector_t *matched; /* A dir_conf sections we matched */
cc9582e53aead2a044077c4a92f3dfc3605590b3wrowe ap_conf_vector_t *merged; /* The dir_conf merged result */
4f9c22c4f27571d54197be9674e1fc0d528192aestriker ap_conf_vector_t **dir_conf_tested; /* The sections we matched against */
4f9c22c4f27571d54197be9674e1fc0d528192aestriker ap_conf_vector_t *dir_conf_merged; /* Base per_dir_config */
4f9c22c4f27571d54197be9674e1fc0d528192aestriker ap_conf_vector_t *per_dir_result; /* per_dir_config += walked result */
4f9c22c4f27571d54197be9674e1fc0d528192aestriker apr_array_header_t *walked; /* The list of walk_walked_t results */
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd struct walk_cache_t *prev; /* Prev cache of same call in this (sub)req */
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd int count; /* Number of prev invocations of same call in this (sub)req */
a2b181763cb35fd899feb4a436aeadaa80bf91eabrianpstatic walk_cache_t *prep_walk_cache(apr_size_t t, request_rec *r)
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd /* Find the most relevant, recent walk cache to work from and provide
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * a copy the caller is allowed to munge. In the case of a sub-request
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * or internal redirect, this is the cache corresponding to the equivalent
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * invocation of the same function call in the "parent" request, if such
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * a cache exists. Otherwise it is the walk cache of the previous
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * invocation of the same function call in the current request, if
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * that exists; if not, then create a new walk cache.
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd cache = apr_pmemdup(r->pool, copy_cache, sizeof(*cache));
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd cache->walked = apr_array_copy(r->pool, cache->walked);
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd cache->walked = apr_array_make(r->pool, 4, sizeof(walk_walked_t));
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb/*****************************************************************
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * Getting and checking directory configuration. Also checks the
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * FollowSymlinks and FollowSymOwner stuff, since this is really the
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * only place that can happen (barring a new mid_dir_walk callout).
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * We can't do it as an access_checker module function which gets
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * called with the final per_dir_config, since we could have a directory
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * with FollowSymLinks disabled, which contains a symlink to another
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * with a .htaccess file which turns FollowSymLinks back on --- and
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * access in such a case must be denied. So, whatever it is that
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * checks FollowSymLinks needs to know the state of the options as
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * they change, all the way down.
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * resolve_symlink must _always_ be called on an APR_LNK file type!
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * It will resolve the actual target file type, modification date, etc,
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * and provide any processing required for symlink evaluation.
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * Path must already be cleaned, no trailing slash, no multi-slashes,
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * and don't call this on the root!
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * Simply, the number of times we deref a symlink are minimal compared
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * to the number of times we had an extra lstat() since we 'weren't sure'.
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * To optimize, we stat() anything when given (opts & OPT_SYM_LINKS), otherwise
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * we start off with an lstat(). Every lstat() must be dereferenced in case
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * it points at a 'nasty' - we must always rerun check_safe_file (or similar.)
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowestatic int resolve_symlink(char *d, apr_finfo_t *lfi, int opts, apr_pool_t *p)
7c301a1818939f85da8f3629cc3e9b5588610ef0jerenkrantz /* Save the name from the valid bits. */
7c301a1818939f85da8f3629cc3e9b5588610ef0jerenkrantz savename = (lfi->valid & APR_FINFO_NAME) ? lfi->name : NULL;
1e911973bcb9df6701a4c16c037771ecf25ade13niq /* if OPT_SYM_OWNER is unset, we only need to check target accessible */
c3e233736c4a453cbb2166a041f779e86230630asf if (apr_stat(&fi, d, lfi->valid & ~(APR_FINFO_NAME | APR_FINFO_LINK), p)
11fb2f3611e6ff9a541e10b13e3108934f828141gregames /* Give back the target */
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* OPT_SYM_OWNER only works if we can get the owner of
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * both the file and symlink. First fill in a missing
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe * owner of the symlink, then get the info of the target.
c3e233736c4a453cbb2166a041f779e86230630asf if (apr_stat(lfi, d, lfi->valid | APR_FINFO_LINK | APR_FINFO_OWNER, p)
c3e233736c4a453cbb2166a041f779e86230630asf if (apr_stat(&fi, d, lfi->valid & ~(APR_FINFO_NAME), p) != APR_SUCCESS) {
1fbf6ba0f5207e6637b49f9a9dfcc779bbe952a9trawick if (apr_uid_compare(fi.user, lfi->user) != APR_SUCCESS) {
290ecc1ddceca1ed49bc1a5338921264b5c3e07cwrowe /* Give back the target */
700b96db75e7cfadb5219978c1735b710d583763wrowe * As we walk the directory configuration, the merged config won't
700b96db75e7cfadb5219978c1735b710d583763wrowe * be 'rooted' to a specific vhost until the very end of the merge.
700b96db75e7cfadb5219978c1735b710d583763wrowe * We need a very fast mini-merge to a real, vhost-rooted merge
700b96db75e7cfadb5219978c1735b710d583763wrowe * of core.opts and core.override, the only options tested within
700b96db75e7cfadb5219978c1735b710d583763wrowe * directory_walk itself.
700b96db75e7cfadb5219978c1735b710d583763wrowe * See core.c::merge_core_dir_configs() for explanation.
6964758306167dd898baedd21048bd1515dd9d30trawickstatic void core_opts_merge(const ap_conf_vector_t *sec, core_opts_t *opts)
7184de27ec1d62a83c41cdeac0953ca9fd661e8csf core_dir_config *this_dir = ap_get_core_module_config(sec);
700b96db75e7cfadb5219978c1735b710d583763wrowe opts->opts = (opts->opts & ~opts->remove) | opts->add;
8aefbd756763807188d2e3ce336a8680e4893066wrowe/*****************************************************************
8aefbd756763807188d2e3ce336a8680e4893066wrowe * Getting and checking directory configuration. Also checks the
8aefbd756763807188d2e3ce336a8680e4893066wrowe * FollowSymlinks and FollowSymOwner stuff, since this is really the
8aefbd756763807188d2e3ce336a8680e4893066wrowe * only place that can happen (barring a new mid_dir_walk callout).
8aefbd756763807188d2e3ce336a8680e4893066wrowe * We can't do it as an access_checker module function which gets
8aefbd756763807188d2e3ce336a8680e4893066wrowe * called with the final per_dir_config, since we could have a directory
8aefbd756763807188d2e3ce336a8680e4893066wrowe * with FollowSymLinks disabled, which contains a symlink to another
8aefbd756763807188d2e3ce336a8680e4893066wrowe * with a .htaccess file which turns FollowSymLinks back on --- and
8aefbd756763807188d2e3ce336a8680e4893066wrowe * access in such a case must be denied. So, whatever it is that
8aefbd756763807188d2e3ce336a8680e4893066wrowe * checks FollowSymLinks needs to know the state of the options as
8aefbd756763807188d2e3ce336a8680e4893066wrowe * they change, all the way down.
2fa5b5878e7567e2875807c3e2a2b3b0d3ef74bewrowe ap_conf_vector_t **sec_ent = (ap_conf_vector_t **) sconf->sec_dir->elts;
dc8692c6c0ca616a09aa12dad005f2ef23baa1a0wrowe /* XXX: Better (faster) tests needed!!!
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * "OK" as a response to a real problem is not _OK_, but to allow broken
23c6309e36a63b13b61c35999c978017521993d6wrowe * modules to proceed, we will permit the not-a-path filename to pass the
23c6309e36a63b13b61c35999c978017521993d6wrowe * following two tests. This behavior may be revoked in future versions
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * of Apache. We still must catch it later if it's heading for the core
23c6309e36a63b13b61c35999c978017521993d6wrowe * handler. Leave INFO notes here for module debugging.
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(00029)
4f9c22c4f27571d54197be9674e1fc0d528192aestriker "Module bug? Request filename is missing for URI %s",
cf6ef072483172309861d06e85b1aeff4573c060wrowe /* Canonicalize the file path without resolving filename case or aliases
cf6ef072483172309861d06e85b1aeff4573c060wrowe * so we can begin by checking the cache for a recent directory walk.
cf6ef072483172309861d06e85b1aeff4573c060wrowe * This call will ensure we have an absolute path in the same pass.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker if ((rv = apr_filepath_merge(&entry_dir, NULL, r->filename,
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(00030)
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe "Module bug? Request filename path %s is invalid or "
4f9c22c4f27571d54197be9674e1fc0d528192aestriker "or not absolute for uri %s",
cf6ef072483172309861d06e85b1aeff4573c060wrowe /* XXX Notice that this forces path_info to be canonical. That might
cf6ef072483172309861d06e85b1aeff4573c060wrowe * not be desired by all apps. However, some of those same apps likely
cf6ef072483172309861d06e85b1aeff4573c060wrowe * have significant security holes.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* If this is not a dirent subrequest with a preconstructed
cf6ef072483172309861d06e85b1aeff4573c060wrowe * r->finfo value, then we can simply stat the filename to
cf6ef072483172309861d06e85b1aeff4573c060wrowe * save burning mega-cycles with unneeded stats - if this is
cf6ef072483172309861d06e85b1aeff4573c060wrowe * an exact file match. We don't care about failure... we
cf6ef072483172309861d06e85b1aeff4573c060wrowe * will stat by component failing this meager attempt.
cf6ef072483172309861d06e85b1aeff4573c060wrowe * It would be nice to distinguish APR_ENOENT from other
cf6ef072483172309861d06e85b1aeff4573c060wrowe * types of failure, such as APR_ENOTDIR. We can do something
cf6ef072483172309861d06e85b1aeff4573c060wrowe * with APR_ENOENT, knowing that the path is good.
2d4ea77e21ef7f3707d2c27f6117cc0a36e99b83trawick if (r->finfo.filetype == APR_NOFILE || r->finfo.filetype == APR_LNK) {
f4ca9f6f002fece336168a16355434ca966f96a9trawick rv = ap_run_dirwalk_stat(&r->finfo, r, APR_FINFO_MIN);
d75626f0952c6152a99acd013a4f127d46f0f9edtrawick /* some OSs will return APR_SUCCESS/APR_REG if we stat
d75626f0952c6152a99acd013a4f127d46f0f9edtrawick * a regular file but we have '/' at the end of the name;
d75626f0952c6152a99acd013a4f127d46f0f9edtrawick * other OSs will return APR_ENOTDIR for that situation;
d75626f0952c6152a99acd013a4f127d46f0f9edtrawick * handle it the same everywhere by simulating a failure
d75626f0952c6152a99acd013a4f127d46f0f9edtrawick * if it looks like a directory but really isn't
ecde48c75338ff5712f2036711f813c6dedca28ewrowe * Also reset if the stat failed, just for safety.
2d4ea77e21ef7f3707d2c27f6117cc0a36e99b83trawick r->finfo.filetype = APR_NOFILE; /* forget what we learned */
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe entry_dir = ap_make_dirstr_parent(r->pool, entry_dir);
731344ed8f3677d1661c261ca5fcdd2ee3dbc74ccoar else if (r->filename[strlen(r->filename) - 1] != '/') {
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe entry_dir = apr_pstrcat(r->pool, r->filename, "/", NULL);
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* If we have a file already matches the path of r->filename,
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * and the vhost's list of directory sections hasn't changed,
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * we can skip rewalking the directory_walk entries.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* Well this looks really familiar! If our end-result (per_dir_result)
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * didn't change, we have absolutely nothing to do :)
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * Otherwise (as is the case with most dir_merged/file_merged requests)
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * we must merge our dir_conf_merged onto this new r->per_dir_config.
534611d341a1a48b93c7a1fd5e333dbd261527d3rpluem * If Symlinks are allowed in general we do not need the following
eb12400ff685a3b69476736ca4b5389f348b9d63rpluem * APR_INCOMPLETE is as fine as result as APR_SUCCESS as we
eb12400ff685a3b69476736ca4b5389f348b9d63rpluem * have added APR_FINFO_NAME to the wanted parameter of
eb12400ff685a3b69476736ca4b5389f348b9d63rpluem * apr_stat above. On Unix platforms this means that apr_stat
eb12400ff685a3b69476736ca4b5389f348b9d63rpluem * is always going to return APR_INCOMPLETE in the case that
eb12400ff685a3b69476736ca4b5389f348b9d63rpluem * the call to the native stat / lstat did not fail.
ad099b4d62597be19f8dba650663e796cbaa8d28rpluem * This should never happen, because we did a stat on the
ad099b4d62597be19f8dba650663e796cbaa8d28rpluem * same file, resolving a possible symlink several lines
ad099b4d62597be19f8dba650663e796cbaa8d28rpluem * above. Therefore do not make a detailed analysis of rv
ad099b4d62597be19f8dba650663e796cbaa8d28rpluem * in this case for the reason of the failure, just bail out
ad099b4d62597be19f8dba650663e796cbaa8d28rpluem * with a HTTP_FORBIDDEN in case we hit a race condition
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(00031)
75c02648f9afe9a1da5d5482703fcbca306ffcdcpquerna "access to %s failed; stat of '%s' failed.",
534611d341a1a48b93c7a1fd5e333dbd261527d3rpluem /* Is this a possibly acceptable symlink? */
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00032)
534611d341a1a48b93c7a1fd5e333dbd261527d3rpluem "Symbolic link not allowed "
534611d341a1a48b93c7a1fd5e333dbd261527d3rpluem "or link target not accessible: %s",
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* We start now_merged from NULL since we want to build
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * a locations list that can be merged to any vhost.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe walk_walked_t *last_walk = (walk_walked_t*)cache->walked->elts;
0e58e92812f2f679d6bf2ff66cbcfa6c1d1e14bbjerenkrantz /* Invariant: from the first time filename_len is set until
0e58e92812f2f679d6bf2ff66cbcfa6c1d1e14bbjerenkrantz * it goes out of scope, filename_len==strlen(r->filename)
2fd8d1e14fc47762d1e01660b544d5e2a75c825dtrawick * We must play our own mini-merge game here, for the few
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * running dir_config values we care about within dir_walk.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * We didn't start the merge from r->per_dir_config, so we
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * accumulate opts and override as we merge, from the globals.
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe /* Set aside path_info to merge back onto path_info later.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * If r->filename is a directory, we must remerge the path_info,
25afd195b9c3c514c5195c87ca281b1b93138ac9trawick * before we continue! [Directories cannot, by definition, have
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * path info. Either the next segment is not-found, or a file.]
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * r->path_info tracks the unconsumed source path.
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * r->filename tracks the path as we process it
4f9c22c4f27571d54197be9674e1fc0d528192aestriker if ((r->finfo.filetype == APR_DIR) && r->path_info && *r->path_info)
4f9c22c4f27571d54197be9674e1fc0d528192aestriker if ((rv = apr_filepath_merge(&r->path_info, r->filename,
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(00033)
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe "dir_walk error, path_info %s is not relative "
4f9c22c4f27571d54197be9674e1fc0d528192aestriker "to the filename path %s for uri %s",
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe while (r->canonical_filename && r->canonical_filename[canonical_len]
4f9c22c4f27571d54197be9674e1fc0d528192aestriker && ((r->canonical_filename[canonical_len - 1] != '/'
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * Now build r->filename component by component, starting
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * with the root (on Unix, simply "/"). We will make a huge
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * assumption here for efficiency, that any canonical path
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * already given included a canonical root.
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe (const char **)&r->path_info,
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * Bad assumption above? If the root's length is longer
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * than the canonical length, then it cannot be trusted as
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * a truename. So try again, this time more seriously.
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe (const char **)&r->path_info,
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe#else /* ndef CASE_BLIND_FILESYSTEM, really this simple for Unix today; */
38bcc87d9a06e8ba81165421403f275eca4e313btrawick (const char **)&r->path_info,
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(00034)
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe "dir_walk error, could not determine the root "
4f9c22c4f27571d54197be9674e1fc0d528192aestriker "path of filename %s%s for uri %s",
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe /* Working space for terminating null and an extra / is required.
0e58e92812f2f679d6bf2ff66cbcfa6c1d1e14bbjerenkrantz buflen = filename_len + strlen(r->path_info) + 2;
cf6ef072483172309861d06e85b1aeff4573c060wrowe thisinfo.filetype = APR_DIR; /* It's the root, of course it's a dir */
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * seg keeps track of which segment we've copied.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * sec_idx keeps track of which section we're on, since sections are
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * ordered by number of segments. See core_reorder_directories
700b96db75e7cfadb5219978c1735b710d583763wrowe * startseg tells us how many segments describe the root path
700b96db75e7cfadb5219978c1735b710d583763wrowe * e.g. the complete path "//host/foo/" to a UNC share (4)
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * Go down the directory hierarchy. Where we have to check for
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * symlinks, do so. Where a .htaccess file has permission to
d4abb06ac220bb280ae996b6d21bbd257db51bb1jerenkrantz * override anything, try to find one.
548b2980e83f609186a76e98fb245d02e8547bc3jerenkrantz /* We have no trailing slash, but we sure would appreciate one.
548b2980e83f609186a76e98fb245d02e8547bc3jerenkrantz * However, we don't want to append a / our first time through.
548b2980e83f609186a76e98fb245d02e8547bc3jerenkrantz if ((seg > startseg) && r->filename[filename_len-1] != '/') {
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* Begin *this* level by looking for matching <Directory> sections
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * from the server config.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* No more possible matches for this many segments?
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * We are done when we find relative/regex/longer components.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* We will never skip '0' element components, e.g. plain old
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * <Directory >, and <Directory "/"> are classified as zero
4a13940dc2990df0a798718d3a3f9cf1566c2217bjh * so that Win32/Netware/OS2 etc all pick them up.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * Otherwise, skip over the mismatches.
700b96db75e7cfadb5219978c1735b710d583763wrowe /* If we haven't continue'd above, we have a match.
700b96db75e7cfadb5219978c1735b710d583763wrowe * Calculate our full-context core opts & override.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* If we merged this same section last time, reuse it
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* We fell out of sync. This is our own copy of walked,
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * so truncate the remaining matches and reset remaining.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe last_walk = (walk_walked_t*)apr_array_push(cache->walked);
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* If .htaccess files are enabled, check for one, provided we
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * have reached a real path.
700b96db75e7cfadb5219978c1735b710d583763wrowe do { /* Not really a loop, just a break'able code block */
e8f95a682820a599fe41b22977010636be5c2717jim /* No htaccess in an incomplete root path,
e8f95a682820a599fe41b22977010636be5c2717jim * nor if it's disabled
113961f0559eb026ea0d379cb7350f82bc09d710druggeri if (seg < startseg || (!opts.override && opts.override_list == NULL)) {
700b96db75e7cfadb5219978c1735b710d583763wrowe res = ap_parse_htaccess(&htaccess_conf, r, opts.override,
700b96db75e7cfadb5219978c1735b710d583763wrowe /* If we are still here, we found our htaccess.
700b96db75e7cfadb5219978c1735b710d583763wrowe * Calculate our full-context core opts & override.
700b96db75e7cfadb5219978c1735b710d583763wrowe /* If we merged this same htaccess last time, reuse it...
700b96db75e7cfadb5219978c1735b710d583763wrowe * this wouldn't work except that we cache the htaccess
700b96db75e7cfadb5219978c1735b710d583763wrowe * sections for the lifetime of the request, so we match
700b96db75e7cfadb5219978c1735b710d583763wrowe * the same conf. Good planning (no, pure luck ;)
700b96db75e7cfadb5219978c1735b710d583763wrowe /* We fell out of sync. This is our own copy of walked,
700b96db75e7cfadb5219978c1735b710d583763wrowe * so truncate the remaining matches and reset
700b96db75e7cfadb5219978c1735b710d583763wrowe * remaining.
700b96db75e7cfadb5219978c1735b710d583763wrowe last_walk = (walk_walked_t*)apr_array_push(cache->walked);
700b96db75e7cfadb5219978c1735b710d583763wrowe } while (0); /* Only one htaccess, not a real loop */
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* That temporary trailing slash was useful, now drop it.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* Time for all good things to come to an end?
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* Now it's time for the next segment...
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * We will assume the next element is an end node, and fix it up
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * below as necessary...
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe delim = strchr(r->path_info + (*r->path_info == '/' ? 1 : 0), '/');
0e58e92812f2f679d6bf2ff66cbcfa6c1d1e14bbjerenkrantz memcpy(seg_name, r->path_info, path_info_len + 1);
0e58e92812f2f679d6bf2ff66cbcfa6c1d1e14bbjerenkrantz memcpy(seg_name, r->path_info, path_info_len + 1);
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* If nothing remained but a '/' string, we are finished
ecde48c75338ff5712f2036711f813c6dedca28ewrowe * XXX: NO WE ARE NOT!!! Now process this puppy!!! */
cf6ef072483172309861d06e85b1aeff4573c060wrowe /* First optimization;
cf6ef072483172309861d06e85b1aeff4573c060wrowe * If...we knew r->filename was a file, and
cf6ef072483172309861d06e85b1aeff4573c060wrowe * if...we have strict (case-sensitive) filenames, or
cf6ef072483172309861d06e85b1aeff4573c060wrowe * we know the canonical_filename matches to _this_ name, and
cf6ef072483172309861d06e85b1aeff4573c060wrowe * if...we have allowed symlinks
cf6ef072483172309861d06e85b1aeff4573c060wrowe * skip the lstat and dummy up an APR_DIR value for thisinfo.
700b96db75e7cfadb5219978c1735b710d583763wrowe && ((opts.opts & (OPT_SYM_OWNER | OPT_SYM_LINKS)) == OPT_SYM_LINKS))
e8f95a682820a599fe41b22977010636be5c2717jim /* We choose apr_stat with flag APR_FINFO_LINK here, rather that
1fbf6ba0f5207e6637b49f9a9dfcc779bbe952a9trawick * plain apr_stat, so that we capture this path object rather than
e8f95a682820a599fe41b22977010636be5c2717jim * its target. We will replace the info with our target's info
e8f95a682820a599fe41b22977010636be5c2717jim * below. We especially want the name of this 'link' object, not
e8f95a682820a599fe41b22977010636be5c2717jim * the name of its target, if we are fixing the filename
c2cf53a40a9814eb91db2cdf820f97d943f21628coar /* Nothing? That could be nice. But our directory
c2cf53a40a9814eb91db2cdf820f97d943f21628coar * walk is done.
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(00035)
44761f3e3072cf78a4997a88bb9a515ca101a1f4covener "access to %s denied (filesystem path '%s') "
44761f3e3072cf78a4997a88bb9a515ca101a1f4covener "because search permissions are missing on a "
4f9c22c4f27571d54197be9674e1fc0d528192aestriker else if ((rv != APR_SUCCESS && rv != APR_INCOMPLETE)
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* If we hit ENOTDIR, we must have over-optimized, deny
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * rather than assume not found.
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(00036)
44761f3e3072cf78a4997a88bb9a515ca101a1f4covener "access to %s failed (filesystem path '%s')",
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* Fix up the path now if we have a name, and they don't agree
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* TODO: provide users an option that an internal/external
cadddb2c31d24d48f4017db4df0a29687432326cwrowe * redirect is required here? We need to walk the URI and
cadddb2c31d24d48f4017db4df0a29687432326cwrowe * filename in tandem to properly correlate these.
cf6ef072483172309861d06e85b1aeff4573c060wrowe /* Is this a possibly acceptable symlink?
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00037)
71fe373d064756fb261876443806ece033ee3309slive "Symbolic link not allowed "
71fe373d064756fb261876443806ece033ee3309slive "or link target not accessible: %s",
ecde48c75338ff5712f2036711f813c6dedca28ewrowe /* Ok, we are done with the link's info, test the real target
ecde48c75338ff5712f2036711f813c6dedca28ewrowe /* That was fun, nothing left for us here
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00038)
ecde48c75338ff5712f2036711f813c6dedca28ewrowe "Forbidden: %s doesn't point to "
ecde48c75338ff5712f2036711f813c6dedca28ewrowe "a file or directory",
cf6ef072483172309861d06e85b1aeff4573c060wrowe /* If we have _not_ optimized, this is the time to recover
cf6ef072483172309861d06e85b1aeff4573c060wrowe * the final stat result.
2d4ea77e21ef7f3707d2c27f6117cc0a36e99b83trawick if (r->finfo.filetype == APR_NOFILE || r->finfo.filetype == APR_LNK) {
cf6ef072483172309861d06e85b1aeff4573c060wrowe /* Now splice the saved path_info back onto any new path_info
4f9c22c4f27571d54197be9674e1fc0d528192aestriker r->path_info = ap_make_full_path(r->pool, r->path_info,
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * Now we'll deal with the regexes, note we pick up sec_idx
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * where we left off (we gave up after we hit entry_core->r)
7184de27ec1d62a83c41cdeac0953ca9fd661e8csf entry_core = ap_get_core_module_config(sec_ent[sec_idx]);
a370a774825bc89fc6b0d8e45035a590e39b0bd6minfrin pmatch = apr_palloc(rxpool, nmatch*sizeof(ap_regmatch_t));
a370a774825bc89fc6b0d8e45035a590e39b0bd6minfrin if (ap_regexec(entry_core->r, r->filename, nmatch, pmatch, 0)) {
a370a774825bc89fc6b0d8e45035a590e39b0bd6minfrin for (i = 0; i < nmatch; i++) {
700b96db75e7cfadb5219978c1735b710d583763wrowe /* If we haven't already continue'd above, we have a match.
700b96db75e7cfadb5219978c1735b710d583763wrowe * Calculate our full-context core opts & override.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* If we merged this same section last time, reuse it
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe /* We fell out of sync. This is our own copy of walked,
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe * so truncate the remaining matches and reset remaining.
e4a3f3c2f080cac75a15a6454cca429b8161c050wrowe last_walk = (walk_walked_t*)apr_array_push(cache->walked);
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd /* Whoops - everything matched in sequence, but either the original
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * walk found some additional matches (which we need to truncate), or
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * this walk found some additional matches.
c2cf53a40a9814eb91db2cdf820f97d943f21628coar/* It seems this shouldn't be needed anymore. We translated the
c2cf53a40a9814eb91db2cdf820f97d943f21628coar x symlink above into a real resource, and should have died up there.
c2cf53a40a9814eb91db2cdf820f97d943f21628coar x Even if we keep this, it needs more thought (maybe an r->file_is_symlink)
c2cf53a40a9814eb91db2cdf820f97d943f21628coar x perhaps it should actually happen in file_walk, so we catch more
0ec08ecdcb42129d147888bda504787b164da39cerikabele x obscure cases in autoindex subrequests, etc.
8aefbd756763807188d2e3ce336a8680e4893066wrowe x * Symlink permissions are determined by the parent. If the request is
8aefbd756763807188d2e3ce336a8680e4893066wrowe x * for a directory then applying the symlink test here would use the
8aefbd756763807188d2e3ce336a8680e4893066wrowe x * permissions of the directory as opposed to its parent. Consider a
8aefbd756763807188d2e3ce336a8680e4893066wrowe x * symlink pointing to a dir with a .htaccess disallowing symlinks. If
8aefbd756763807188d2e3ce336a8680e4893066wrowe x * you access /symlink (or /symlink/) you would get a 403 without this
5bb29f57ae0184d2b3c1cdf35132f8ceb011f882wrowe x * APR_DIR test. But if you accessed /symlink/index.html, for example,
8aefbd756763807188d2e3ce336a8680e4893066wrowe x * you would *not* get the 403.
8aefbd756763807188d2e3ce336a8680e4893066wrowe x if (r->finfo.filetype != APR_DIR
c2cf53a40a9814eb91db2cdf820f97d943f21628coar x && (res = resolve_symlink(r->filename, r->info, ap_allow_options(r),
c2cf53a40a9814eb91db2cdf820f97d943f21628coar x r->pool))) {
2d399cd7535887fceaa9f8f116eb98ce68ddd602trawick x ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
c2cf53a40a9814eb91db2cdf820f97d943f21628coar x "Symbolic link not allowed: %s", r->filename);
8aefbd756763807188d2e3ce336a8680e4893066wrowe x return res;
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe /* Save future sub-requestors much angst in processing
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * this subrequest. If dir_walk couldn't canonicalize
1b315ee865b0f11e582beb64127ca3a99a319d2fwrowe * the file path, nothing can.
0540a0b469147b52e858587270dba31c2aaa9e09wrowe cache->cached = ap_make_dirstr_parent(r->pool, r->filename);
0540a0b469147b52e858587270dba31c2aaa9e09wrowe /* Merge our cache->dir_conf_merged construct with the r->per_dir_configs,
0540a0b469147b52e858587270dba31c2aaa9e09wrowe * and note the end result to (potentially) skip this step next time.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker ap_conf_vector_t **sec_ent = (ap_conf_vector_t **)sconf->sec_url->elts;
948096a99010fccf648814fecf38f75c689172d7wrowe /* No tricks here, there are no <Locations > to parse in this vhost.
dc8692c6c0ca616a09aa12dad005f2ef23baa1a0wrowe * We won't destroy the cache, just in case _this_ redirect is later
dc8692c6c0ca616a09aa12dad005f2ef23baa1a0wrowe * redirected again to a vhost with <Location > blocks to optimize.
948096a99010fccf648814fecf38f75c689172d7wrowe /* Location and LocationMatch differ on their behaviour w.r.t. multiple
948096a99010fccf648814fecf38f75c689172d7wrowe * slashes. Location matches multiple slashes with a single slash,
948096a99010fccf648814fecf38f75c689172d7wrowe * LocationMatch doesn't. An exception, for backwards brokenness is
948096a99010fccf648814fecf38f75c689172d7wrowe * absoluteURIs... in which case neither match multiple slashes.
948096a99010fccf648814fecf38f75c689172d7wrowe /* If we have an cache->cached location that matches r->uri,
948096a99010fccf648814fecf38f75c689172d7wrowe * and the vhost's list of locations hasn't changed, we can skip
948096a99010fccf648814fecf38f75c689172d7wrowe * rewalking the location_walk entries.
948096a99010fccf648814fecf38f75c689172d7wrowe /* Well this looks really familiar! If our end-result (per_dir_result)
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * didn't change, we have absolutely nothing to do :)
948096a99010fccf648814fecf38f75c689172d7wrowe * Otherwise (as is the case with most dir_merged/file_merged requests)
948096a99010fccf648814fecf38f75c689172d7wrowe * we must merge our dir_conf_merged onto this new r->per_dir_config.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* We start now_merged from NULL since we want to build
948096a99010fccf648814fecf38f75c689172d7wrowe * a locations list that can be merged to any vhost.
aa047239dedf0d26e8efecfade32e7337f35df19wrowe walk_walked_t *last_walk = (walk_walked_t*)cache->walked->elts;
948096a99010fccf648814fecf38f75c689172d7wrowe /* Go through the location entries, and check for matches.
948096a99010fccf648814fecf38f75c689172d7wrowe * We apply the directive sections in given order, we should
948096a99010fccf648814fecf38f75c689172d7wrowe * really try them with the most general first.
7184de27ec1d62a83c41cdeac0953ca9fd661e8csf entry_core = ap_get_core_module_config(sec_ent[sec_idx]);
aa047239dedf0d26e8efecfade32e7337f35df19wrowe /* ### const strlen can be optimized in location config parsing */
053497224246c4dbef9af594cacf5c00ed271e6cwrowe /* Test the regex, fnmatch or string as appropriate.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * If it's a strcmp, and the <Location > pattern was
053497224246c4dbef9af594cacf5c00ed271e6cwrowe * not slash terminated, then this uri must be slash
053497224246c4dbef9af594cacf5c00ed271e6cwrowe * terminated (or at the end of the string) to match.
a370a774825bc89fc6b0d8e45035a590e39b0bd6minfrin pmatch = apr_palloc(rxpool, nmatch*sizeof(ap_regmatch_t));
a370a774825bc89fc6b0d8e45035a590e39b0bd6minfrin if (ap_regexec(entry_core->r, r->uri, nmatch, pmatch, 0)) {
a370a774825bc89fc6b0d8e45035a590e39b0bd6minfrin for (i = 0; i < nmatch; i++) {
1fbf6ba0f5207e6637b49f9a9dfcc779bbe952a9trawick ? apr_fnmatch(entry_core->d, cache->cached, APR_FNM_PATHNAME)
948096a99010fccf648814fecf38f75c689172d7wrowe /* If we merged this same section last time, reuse it
948096a99010fccf648814fecf38f75c689172d7wrowe /* We fell out of sync. This is our own copy of walked,
948096a99010fccf648814fecf38f75c689172d7wrowe * so truncate the remaining matches and reset remaining.
948096a99010fccf648814fecf38f75c689172d7wrowe last_walk = (walk_walked_t*)apr_array_push(cache->walked);
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd /* Whoops - everything matched in sequence, but either the original
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * walk found some additional matches (which we need to truncate), or
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * this walk found some additional matches.
948096a99010fccf648814fecf38f75c689172d7wrowe /* Merge our cache->dir_conf_merged construct with the r->per_dir_configs,
948096a99010fccf648814fecf38f75c689172d7wrowe * and note the end result to (potentially) skip this step next time.
7184de27ec1d62a83c41cdeac0953ca9fd661e8csf core_dir_config *dconf = ap_get_core_module_config(r->per_dir_config);
dc8692c6c0ca616a09aa12dad005f2ef23baa1a0wrowe /* To allow broken modules to proceed, we allow missing filenames to pass.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * We will catch it later if it's heading for the core handler.
dc8692c6c0ca616a09aa12dad005f2ef23baa1a0wrowe * directory_walk already posted an INFO note for module debugging.
aa047239dedf0d26e8efecfade32e7337f35df19wrowe /* No tricks here, there are just no <Files > to parse in this context.
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * We won't destroy the cache, just in case _this_ redirect is later
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * redirected again to a context containing the same or similar <Files >.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* Get the basename .. and copy for the cache just
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * in case r->filename is munged by another module
aa047239dedf0d26e8efecfade32e7337f35df19wrowe /* If we have an cache->cached file name that matches test_file,
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * and the directory's list of file sections hasn't changed, we
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * can skip rewalking the file_walk entries.
aa047239dedf0d26e8efecfade32e7337f35df19wrowe /* Well this looks really familiar! If our end-result (per_dir_result)
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * didn't change, we have absolutely nothing to do :)
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * Otherwise (as is the case with most dir_merged requests)
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * we must merge our dir_conf_merged onto this new r->per_dir_config.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* We start now_merged from NULL since we want to build
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * a file section list that can be merged to any dir_walk.
aa047239dedf0d26e8efecfade32e7337f35df19wrowe walk_walked_t *last_walk = (walk_walked_t*)cache->walked->elts;
aa047239dedf0d26e8efecfade32e7337f35df19wrowe /* Go through the location entries, and check for matches.
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * We apply the directive sections in given order, we should
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * really try them with the most general first.
7184de27ec1d62a83c41cdeac0953ca9fd661e8csf entry_core = ap_get_core_module_config(sec_ent[sec_idx]);
a370a774825bc89fc6b0d8e45035a590e39b0bd6minfrin pmatch = apr_palloc(rxpool, nmatch*sizeof(ap_regmatch_t));
a370a774825bc89fc6b0d8e45035a590e39b0bd6minfrin if (ap_regexec(entry_core->r, cache->cached, nmatch, pmatch, 0)) {
a370a774825bc89fc6b0d8e45035a590e39b0bd6minfrin for (i = 0; i < nmatch; i++) {
a370a774825bc89fc6b0d8e45035a590e39b0bd6minfrin ? apr_fnmatch(entry_core->d, cache->cached, APR_FNM_PATHNAME)
aa047239dedf0d26e8efecfade32e7337f35df19wrowe /* If we merged this same section last time, reuse it
aa047239dedf0d26e8efecfade32e7337f35df19wrowe /* We fell out of sync. This is our own copy of walked,
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * so truncate the remaining matches and reset remaining.
aa047239dedf0d26e8efecfade32e7337f35df19wrowe last_walk = (walk_walked_t*)apr_array_push(cache->walked);
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd /* Whoops - everything matched in sequence, but either the original
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * walk found some additional matches (which we need to truncate), or
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd * this walk found some additional matches.
aa047239dedf0d26e8efecfade32e7337f35df19wrowe /* Merge our cache->dir_conf_merged construct with the r->per_dir_configs,
aa047239dedf0d26e8efecfade32e7337f35df19wrowe * and note the end result to (potentially) skip this step next time.
7184de27ec1d62a83c41cdeac0953ca9fd661e8csf core_dir_config *dconf = ap_get_core_module_config(r->per_dir_config);
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf /* No tricks here, there are just no <If > to parse in this context.
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf * We won't destroy the cache, just in case _this_ redirect is later
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf * redirected again to a context containing the same or similar <If >.
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf /* Go through the if entries, and check for matches */
7184de27ec1d62a83c41cdeac0953ca9fd661e8csf entry_core = ap_get_core_module_config(sec_ent[sec_idx]);
6b15044d54a096e6323ff1540f1a491e8de7622dsf if (rc <= 0) {
185aa71728867671e105178b4c66fbc22b65ae26sf ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00039)
6b15044d54a096e6323ff1540f1a491e8de7622dsf "Failed to evaluate <If > condition: %s",
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf /* If we merged this same section last time, reuse it
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf /* We fell out of sync. This is our own copy of walked,
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf * so truncate the remaining matches and reset remaining.
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf last_walk = (walk_walked_t*)apr_array_push(cache->walked);
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf /* Everything matched in sequence, but it may be that the original
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf * walk found some additional matches (which we need to truncate), or
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf * this walk found some additional matches.
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf /* Merge our cache->dir_conf_merged construct with the r->per_dir_configs,
48e4b65042d94992c50f1db6c0b0cdbd99ca77e8sf * and note the end result to (potentially) skip this step next time.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb/*****************************************************************
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * The sub_request mechanism.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * Fns to look up a relative URI from, e.g., a map file or SSI document.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * These do all access checks, etc., but don't actually run the transaction
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * ... use run_sub_req below for that. Also, be sure to use destroy_sub_req
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * as appropriate if you're likely to be creating more than a few of these.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * (An early Apache version didn't destroy the sub_reqs used in directory
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * indexing. The result, when indexing a directory with 800-odd files in
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * it, was massively excessive storage allocation).
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * Note more manipulation of protocol-specific vars in the request
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * structure...
4f9c22c4f27571d54197be9674e1fc0d528192aestrikerstatic request_rec *make_sub_request(const request_rec *r,
e68544ae924174ca227ede8e2e722cefa00ea0d3wrowe rnew->request_config = ap_create_request_config(rnew->pool);
fa06de8a28a737e8fbaad76d7f3ff67aaa5e4a09wrowe /* Start a clean config from this subrequest's vhost. Optimization in
fa06de8a28a737e8fbaad76d7f3ff67aaa5e4a09wrowe * Location/File/Dir walks from the parent request assure that if the
fa06de8a28a737e8fbaad76d7f3ff67aaa5e4a09wrowe * config blocks of the subrequest match the parent request, no merges
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * will actually occur (and generally a minimal number of merges are
fa06de8a28a737e8fbaad76d7f3ff67aaa5e4a09wrowe * required, even if the parent and subrequest aren't quite identical.)
e68544ae924174ca227ede8e2e722cefa00ea0d3wrowe rnew->allowed_methods = ap_make_method_list(rnew->pool, 2);
e68544ae924174ca227ede8e2e722cefa00ea0d3wrowe /* make a copy of the allowed-methods list */
e68544ae924174ca227ede8e2e722cefa00ea0d3wrowe ap_copy_method_list(rnew->allowed_methods, r->allowed_methods);
e68544ae924174ca227ede8e2e722cefa00ea0d3wrowe /* start with the same set of output filters */
ebe7da316894e2b93b4a905fccd2496d0ed1bc78rbb /* while there are no input filters for a subrequest, we will
ebe7da316894e2b93b4a905fccd2496d0ed1bc78rbb * try to insert some, so if we don't have valid data, the code
ebe7da316894e2b93b4a905fccd2496d0ed1bc78rbb * will seg fault.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker rnew->proto_output_filters = r->proto_output_filters;
e57e920838f31508f1418aa4c25ce55b345b2cebrbb ap_add_output_filter_handle(ap_subreq_core_filter_handle,
e57e920838f31508f1418aa4c25ce55b345b2cebrbb /* If NULL - we are expecting to be internal_fast_redirect'ed
e57e920838f31508f1418aa4c25ce55b345b2cebrbb * to this subrequest - or this request will never be invoked.
e57e920838f31508f1418aa4c25ce55b345b2cebrbb * Ignore the original request filter stack entirely, and
e57e920838f31508f1418aa4c25ce55b345b2cebrbb * drill the input and output stacks back to the connection.
e68544ae924174ca227ede8e2e722cefa00ea0d3wrowe /* no input filters for a subrequest */
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* We have to run this after we fill in sub req vars,
d2220a04f870f632b8cec1e6713dbb980ed5e386wrowe * or the r->main pointer won't be setup
098ae874f43f7a0b66be5406a7e2fb971bbbe00ewrowe /* Begin by presuming any module can make its own path_info assumptions,
098ae874f43f7a0b66be5406a7e2fb971bbbe00ewrowe * until some module interjects and changes the value.
439ccf2a084e1da566548931c585cbcc3a9e7f4cminfrin /* Pass on the kept body (if any) into the new request. */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_CORE_DECLARE_NONSTD(apr_status_t) ap_sub_req_output_filter(ap_filter_t *f,
a91a59d0b0ceed7cd5621fe8757eda5ff6a043a8pquernaextern APR_OPTIONAL_FN_TYPE(authz_some_auth_required) *ap__authz_ap_some_auth_required;
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb /* Is there a require line configured for the type of *this* req? */
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisdAP_DECLARE(void) ap_setup_auth_internal(apr_pool_t *ptemp)
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd total_auth_hooks += _hooks.link_access_checker->nelts;
18b5268e013574026b2503b1641baf3299045f45sf total_auth_hooks += _hooks.link_access_checker_ex->nelts;
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd total_auth_hooks += _hooks.link_check_user_id->nelts;
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd if (total_auth_hooks > auth_internal_per_conf_hooks) {
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd if (total_auth_providers > auth_internal_per_conf_providers) {
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisdAP_DECLARE(apr_status_t) ap_register_auth_provider(apr_pool_t *pool,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd const void *provider,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd if ((type & AP_AUTH_INTERNAL_MASK) == AP_AUTH_INTERNAL_PER_CONF) {
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd return ap_register_provider(pool, provider_group, provider_name,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisdAP_DECLARE(void) ap_hook_check_access(ap_HOOK_access_checker_t *pf,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd const char * const *aszPre,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd const char * const *aszSucc,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd if ((type & AP_AUTH_INTERNAL_MASK) == AP_AUTH_INTERNAL_PER_CONF) {
18b5268e013574026b2503b1641baf3299045f45sfAP_DECLARE(void) ap_hook_check_access_ex(ap_HOOK_access_checker_ex_t *pf,
18b5268e013574026b2503b1641baf3299045f45sf const char * const *aszPre,
18b5268e013574026b2503b1641baf3299045f45sf const char * const *aszSucc,
18b5268e013574026b2503b1641baf3299045f45sf if ((type & AP_AUTH_INTERNAL_MASK) == AP_AUTH_INTERNAL_PER_CONF) {
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisdAP_DECLARE(void) ap_hook_check_authn(ap_HOOK_check_user_id_t *pf,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd const char * const *aszPre,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd const char * const *aszSucc,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd if ((type & AP_AUTH_INTERNAL_MASK) == AP_AUTH_INTERNAL_PER_CONF) {
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisdAP_DECLARE(void) ap_hook_check_authz(ap_HOOK_auth_checker_t *pf,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd const char * const *aszPre,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd const char * const *aszSucc,
a72211e92bab814bfa28ee086ca9b2a1a6095c92chrisd if ((type & AP_AUTH_INTERNAL_MASK) == AP_AUTH_INTERNAL_PER_CONF) {
b67fb549910fa0faf4cdd8aeaf9aeab51d4b6a92wroweAP_DECLARE(request_rec *) ap_sub_req_method_uri(const char *method,
e8eee56a2ea20f673e5942fb58e1426a7561c7acstas const char *new_uri,
8011ccb9e0700e5a396e2362dab1d9386206277fcolm /* Initialise res, to avoid a gcc warning */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb /* would be nicer to pass "method" to ap_set_sub_req_protocol */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb udir = ap_escape_uri(rnew->pool, udir); /* re-escape it */
e8eee56a2ea20f673e5942fb58e1426a7561c7acstas ap_parse_uri(rnew, ap_make_full_path(rnew->pool, udir, new_uri));
c880637396a01f4acfcf7e35fe423ced2d86c3b4nd /* We cannot return NULL without violating the API. So just turn this
c880637396a01f4acfcf7e35fe423ced2d86c3b4nd * subrequest into a 500 to indicate the failure. */
e8f95a682820a599fe41b22977010636be5c2717jim /* lookup_uri
30b4a330a5f651eb5198fa93dbb9f3d3594564c9stoddard * If the content can be served by the quick_handler, we can
30b4a330a5f651eb5198fa93dbb9f3d3594564c9stoddard * safely bypass request_internal processing.
e8f95a682820a599fe41b22977010636be5c2717jim * If next_filter is NULL we are expecting to be
e8f95a682820a599fe41b22977010636be5c2717jim * internal_fast_redirect'ed to the subrequest, or the subrequest will
e8f95a682820a599fe41b22977010636be5c2717jim * never be invoked. We need to make sure that the quickhandler is not
e8f95a682820a599fe41b22977010636be5c2717jim * invoked by any lookups. Since an internal_fast_redirect will always
6edf0ccf36ca2792b20058833680375b9256f2e0colm * occur too late for the quickhandler to handle the request.
e8eee56a2ea20f673e5942fb58e1426a7561c7acstasAP_DECLARE(request_rec *) ap_sub_req_lookup_uri(const char *new_uri,
e8eee56a2ea20f673e5942fb58e1426a7561c7acstas return ap_sub_req_method_uri("GET", new_uri, r, next_filter);
efa1a34b0a7785fc72863eff175b0cfc1ecb0e38wroweAP_DECLARE(request_rec *) ap_sub_req_lookup_dirent(const apr_finfo_t *dirent,
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* Special case: we are looking at a relative lookup in the same directory.
cadddb2c31d24d48f4017db4df0a29687432326cwrowe * This is 100% safe, since dirent->name just came from the filesystem.
f888346b48f5e5b5e3f0a47dedb8cefd2759a4e2gregames /* strip path_info off the end of the uri to keep it in sync
3cd826b00280881e5a2f03d8ec1f8d55802b93dewrowe * with r->filename, which has already been stripped by directory_walk,
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * merge the dirent->name, and then, if the caller wants us to remerge
3cd826b00280881e5a2f03d8ec1f8d55802b93dewrowe * the original path info, do so. Note we never fix the path_info back
3cd826b00280881e5a2f03d8ec1f8d55802b93dewrowe * to r->filename, since dir_walk would do so (but we don't expect it
3cd826b00280881e5a2f03d8ec1f8d55802b93dewrowe * to happen in the usual cases)
f888346b48f5e5b5e3f0a47dedb8cefd2759a4e2gregames udir[ap_find_path_info(udir, r->path_info)] = '\0';
3cd826b00280881e5a2f03d8ec1f8d55802b93dewrowe rnew->uri = ap_make_full_path(rnew->pool, udir, dirent->name);
3cd826b00280881e5a2f03d8ec1f8d55802b93dewrowe rnew->uri = ap_make_full_path(rnew->pool, rnew->uri, r->path_info + 1);
3cd826b00280881e5a2f03d8ec1f8d55802b93dewrowe rnew->path_info = apr_pstrdup(rnew->pool, r->path_info);
dc3a3d949b7ef46b8385858c822267e39b665c12nd rnew->uri = ap_escape_uri(rnew->pool, ap_make_full_path(rnew->pool,
cadddb2c31d24d48f4017db4df0a29687432326cwrowe fdir = ap_make_dirstr_parent(rnew->pool, r->filename);
117026201e6d8fe7d82416b8a7324830f5a87292wrowe rnew->filename = ap_make_full_path(rnew->pool, fdir, dirent->name);
cadddb2c31d24d48f4017db4df0a29687432326cwrowe /* XXX This is now less relevant; we will do a full location walk
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * these days for this case. Preserve the apr_stat results, and
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * perhaps we also tag that symlinks were tested and/or found for
cadddb2c31d24d48f4017db4df0a29687432326cwrowe * r->filename.
efa1a34b0a7785fc72863eff175b0cfc1ecb0e38wrowe if ((dirent->valid & APR_FINFO_MIN) != APR_FINFO_MIN) {
beda1fb2f11c52ca4612460a5d5ba47398143efbwrowe * apr_dir_read isn't very complete on this platform, so
1fbf6ba0f5207e6637b49f9a9dfcc779bbe952a9trawick * we need another apr_stat (with or without APR_FINFO_LINK
e8f95a682820a599fe41b22977010636be5c2717jim * depending on whether we allow all symlinks here.) If this
e8f95a682820a599fe41b22977010636be5c2717jim * is an APR_LNK that resolves to an APR_DIR, then we will rerun
1fbf6ba0f5207e6637b49f9a9dfcc779bbe952a9trawick * everything anyways... this should be safe.
cadddb2c31d24d48f4017db4df0a29687432326cwrowe * Resolve this symlink. We should tie this back to dir_walk's cache
4f9c22c4f27571d54197be9674e1fc0d528192aestriker if ((res = resolve_symlink(rnew->filename, &rnew->finfo,
6c0e8bc4051537fb59dbca7d80c0a0ca9cf8917asf /* ap_make_full_path and ap_escape_uri overallocated the buffers
3cd826b00280881e5a2f03d8ec1f8d55802b93dewrowe * by one character to help us out here.
4f9c22c4f27571d54197be9674e1fc0d528192aestriker /* fill in parsed_uri values
3cd826b00280881e5a2f03d8ec1f8d55802b93dewrowe if (r->args && *r->args && (subtype == AP_SUBREQ_MERGE_ARGS)) {
4f9c22c4f27571d54197be9674e1fc0d528192aestriker ap_parse_uri(rnew, apr_pstrcat(r->pool, rnew->uri, "?",
c880637396a01f4acfcf7e35fe423ced2d86c3b4nd /* We cannot return NULL without violating the API. So just turn this
c880637396a01f4acfcf7e35fe423ced2d86c3b4nd * subrequest into a 500. */
b67fb549910fa0faf4cdd8aeaf9aeab51d4b6a92wroweAP_DECLARE(request_rec *) ap_sub_req_lookup_file(const char *new_file,
ecc4a080f07af3fbc1b91bbd00997ec1d592c6f9wrowe /* Translate r->filename, if it was canonical, it stays canonical
5bb29f57ae0184d2b3c1cdf35132f8ceb011f882wrowe if (apr_filepath_merge(&rnew->filename, fdir, new_file,
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * Check for a special case... if there are no '/' characters in new_file
4f9c22c4f27571d54197be9674e1fc0d528192aestriker * at all, and the path was the same, then we are looking at a relative
5b3abd2fecc712f08ad728114aa77137b9f67716wrowe * lookup in the same directory. Fixup the URI to match.
c2cf53a40a9814eb91db2cdf820f97d943f21628coar && ap_strchr_c(rnew->filename + fdirlen, '/') == NULL) {
0540a0b469147b52e858587270dba31c2aaa9e09wrowe char *udir = ap_make_dirstr_parent(rnew->pool, r->uri);
0540a0b469147b52e858587270dba31c2aaa9e09wrowe ap_parse_uri(rnew, rnew->uri); /* fill in parsed_uri values */
d4abb06ac220bb280ae996b6d21bbd257db51bb1jerenkrantz ap_parse_uri(rnew, new_file); /* fill in parsed_uri values */
d4abb06ac220bb280ae996b6d21bbd257db51bb1jerenkrantz /* XXX: @@@: What should be done with the parsed_uri values?
5b3abd2fecc712f08ad728114aa77137b9f67716wrowe * We would be better off stripping down to the 'common' elements
5b3abd2fecc712f08ad728114aa77137b9f67716wrowe * of the path, then reassembling the URI as best as we can.
d4abb06ac220bb280ae996b6d21bbd257db51bb1jerenkrantz ap_parse_uri(rnew, new_file); /* fill in parsed_uri values */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * XXX: this should be set properly like it is in the same-dir case
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * but it's actually sometimes to impossible to do it... because the
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * file may not have a uri associated with it -djg
c880637396a01f4acfcf7e35fe423ced2d86c3b4nd /* We cannot return NULL without violating the API. So just turn this
c880637396a01f4acfcf7e35fe423ced2d86c3b4nd * subrequest into a 500. */
e8f95a682820a599fe41b22977010636be5c2717jim /* Run the quick handler if the subrequest is not a dirent or file
e8f95a682820a599fe41b22977010636be5c2717jim * subrequest
2d4ea77e21ef7f3707d2c27f6117cc0a36e99b83trawick if (!(r->filename && r->finfo.filetype != APR_NOFILE)) {
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb /* Reclaim the space */
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * Function to set the r->mtime field to the specified value if it's later
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * than what's already there.
b38846b15c8891c6dec44dcc4f96ca40721bf663rbbAP_DECLARE(void) ap_update_mtime(request_rec *r, apr_time_t dependency_mtime)
b38846b15c8891c6dec44dcc4f96ca40721bf663rbb * Is it the initial main request, which we only get *once* per HTTP request?
4f9c22c4f27571d54197be9674e1fc0d528192aestriker return (r->main == NULL) /* otherwise, this is a sub-request */
4f9c22c4f27571d54197be9674e1fc0d528192aestriker && (r->prev == NULL); /* otherwise, this is an internal redirect */