diff options
Diffstat (limited to 'rubbos/app/httpd-2.0.64/modules/mappers/mod_alias.c')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/modules/mappers/mod_alias.c | 484 |
1 files changed, 0 insertions, 484 deletions
diff --git a/rubbos/app/httpd-2.0.64/modules/mappers/mod_alias.c b/rubbos/app/httpd-2.0.64/modules/mappers/mod_alias.c deleted file mode 100644 index 4e5b6ef0..00000000 --- a/rubbos/app/httpd-2.0.64/modules/mappers/mod_alias.c +++ /dev/null @@ -1,484 +0,0 @@ -/* 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_alias.c: Stuff for dealing with directory aliases - * - * Original by Rob McCool, rewritten in succession by David Robinson - * and rst. - * - */ - -#include "apr_strings.h" -#include "apr_lib.h" - -#define APR_WANT_STRFUNC -#include "apr_want.h" - -#include "ap_config.h" -#include "httpd.h" -#include "http_core.h" -#include "http_config.h" -#include "http_request.h" -#include "http_log.h" - - -typedef struct { - const char *real; - const char *fake; - char *handler; - regex_t *regexp; - int redir_status; /* 301, 302, 303, 410, etc */ -} alias_entry; - -typedef struct { - apr_array_header_t *aliases; - apr_array_header_t *redirects; -} alias_server_conf; - -typedef struct { - apr_array_header_t *redirects; -} alias_dir_conf; - -module AP_MODULE_DECLARE_DATA alias_module; - -static void *create_alias_config(apr_pool_t *p, server_rec *s) -{ - alias_server_conf *a = - (alias_server_conf *) apr_pcalloc(p, sizeof(alias_server_conf)); - - a->aliases = apr_array_make(p, 20, sizeof(alias_entry)); - a->redirects = apr_array_make(p, 20, sizeof(alias_entry)); - return a; -} - -static void *create_alias_dir_config(apr_pool_t *p, char *d) -{ - alias_dir_conf *a = - (alias_dir_conf *) apr_pcalloc(p, sizeof(alias_dir_conf)); - a->redirects = apr_array_make(p, 2, sizeof(alias_entry)); - return a; -} - -static void *merge_alias_config(apr_pool_t *p, void *basev, void *overridesv) -{ - alias_server_conf *a = - (alias_server_conf *) apr_pcalloc(p, sizeof(alias_server_conf)); - alias_server_conf *base = (alias_server_conf *) basev; - alias_server_conf *overrides = (alias_server_conf *) overridesv; - - a->aliases = apr_array_append(p, overrides->aliases, base->aliases); - a->redirects = apr_array_append(p, overrides->redirects, base->redirects); - return a; -} - -static void *merge_alias_dir_config(apr_pool_t *p, void *basev, void *overridesv) -{ - alias_dir_conf *a = - (alias_dir_conf *) apr_pcalloc(p, sizeof(alias_dir_conf)); - alias_dir_conf *base = (alias_dir_conf *) basev; - alias_dir_conf *overrides = (alias_dir_conf *) overridesv; - a->redirects = apr_array_append(p, overrides->redirects, base->redirects); - return a; -} - -/* need prototype for overlap check */ -static int alias_matches(const char *uri, const char *alias_fakename); - -static const char *add_alias_internal(cmd_parms *cmd, void *dummy, - const char *f, const char *r, - int use_regex) -{ - server_rec *s = cmd->server; - alias_server_conf *conf = ap_get_module_config(s->module_config, - &alias_module); - alias_entry *new = apr_array_push(conf->aliases); - alias_entry *entries = (alias_entry *)conf->aliases->elts; - int i; - - /* XX r can NOT be relative to DocumentRoot here... compat bug. */ - - if (use_regex) { - new->regexp = ap_pregcomp(cmd->pool, f, REG_EXTENDED); - if (new->regexp == NULL) - return "Regular expression could not be compiled."; - new->real = r; - } - else { - /* XXX This may be optimized, but we must know that new->real - * exists. If so, we can dir merge later, trusing new->real - * and just canonicalizing the remainder. Not till I finish - * cleaning out the old ap_canonical stuff first. - */ - new->real = r; - } - new->fake = f; - new->handler = cmd->info; - - /* check for overlapping (Script)Alias directives - * and throw a warning if found one - */ - if (!use_regex) { - for (i = 0; i < conf->aliases->nelts - 1; ++i) { - alias_entry *p = &entries[i]; - - if ( (!p->regexp && alias_matches(f, p->fake) > 0) - || (p->regexp && !ap_regexec(p->regexp, f, 0, NULL, 0))) { - ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, - "The %s directive in %s at line %d will probably " - "never match because it overlaps an earlier " - "%sAlias%s.", - cmd->cmd->name, cmd->directive->filename, - cmd->directive->line_num, - p->handler ? "Script" : "", - p->regexp ? "Match" : ""); - - break; /* one warning per alias should be sufficient */ - } - } - } - - return NULL; -} - -static const char *add_alias(cmd_parms *cmd, void *dummy, const char *f, - const char *r) -{ - return add_alias_internal(cmd, dummy, f, r, 0); -} - -static const char *add_alias_regex(cmd_parms *cmd, void *dummy, const char *f, - const char *r) -{ - return add_alias_internal(cmd, dummy, f, r, 1); -} - -static const char *add_redirect_internal(cmd_parms *cmd, - alias_dir_conf *dirconf, - const char *arg1, const char *arg2, - const char *arg3, int use_regex) -{ - alias_entry *new; - server_rec *s = cmd->server; - alias_server_conf *serverconf = ap_get_module_config(s->module_config, - &alias_module); - int status = (int) (long) cmd->info; - regex_t *r = NULL; - const char *f = arg2; - const char *url = arg3; - - if (!strcasecmp(arg1, "gone")) - status = HTTP_GONE; - else if (!strcasecmp(arg1, "permanent")) - status = HTTP_MOVED_PERMANENTLY; - else if (!strcasecmp(arg1, "temp")) - status = HTTP_MOVED_TEMPORARILY; - else if (!strcasecmp(arg1, "seeother")) - status = HTTP_SEE_OTHER; - else if (apr_isdigit(*arg1)) - status = atoi(arg1); - else { - f = arg1; - url = arg2; - } - - if (use_regex) { - r = ap_pregcomp(cmd->pool, f, REG_EXTENDED); - if (r == NULL) - return "Regular expression could not be compiled."; - } - - if (ap_is_HTTP_REDIRECT(status)) { - if (!url) - return "URL to redirect to is missing"; - if (!use_regex && !ap_is_url(url)) - return "Redirect to non-URL"; - } - else { - if (url) - return "Redirect URL not valid for this status"; - } - - if (cmd->path) - new = apr_array_push(dirconf->redirects); - else - new = apr_array_push(serverconf->redirects); - - new->fake = f; - new->real = url; - new->regexp = r; - new->redir_status = status; - return NULL; -} - -static const char *add_redirect(cmd_parms *cmd, void *dirconf, - const char *arg1, const char *arg2, - const char *arg3) -{ - return add_redirect_internal(cmd, dirconf, arg1, arg2, arg3, 0); -} - -static const char *add_redirect2(cmd_parms *cmd, void *dirconf, - const char *arg1, const char *arg2) -{ - return add_redirect_internal(cmd, dirconf, arg1, arg2, NULL, 0); -} - -static const char *add_redirect_regex(cmd_parms *cmd, void *dirconf, - const char *arg1, const char *arg2, - const char *arg3) -{ - return add_redirect_internal(cmd, dirconf, arg1, arg2, arg3, 1); -} - -static const command_rec alias_cmds[] = -{ - AP_INIT_TAKE2("Alias", add_alias, NULL, RSRC_CONF, - "a fakename and a realname"), - AP_INIT_TAKE2("ScriptAlias", add_alias, "cgi-script", RSRC_CONF, - "a fakename and a realname"), - AP_INIT_TAKE23("Redirect", add_redirect, (void *) HTTP_MOVED_TEMPORARILY, - OR_FILEINFO, - "an optional status, then document to be redirected and " - "destination URL"), - AP_INIT_TAKE2("AliasMatch", add_alias_regex, NULL, RSRC_CONF, - "a regular expression and a filename"), - AP_INIT_TAKE2("ScriptAliasMatch", add_alias_regex, "cgi-script", RSRC_CONF, - "a regular expression and a filename"), - AP_INIT_TAKE23("RedirectMatch", add_redirect_regex, - (void *) HTTP_MOVED_TEMPORARILY, OR_FILEINFO, - "an optional status, then a regular expression and " - "destination URL"), - AP_INIT_TAKE2("RedirectTemp", add_redirect2, - (void *) HTTP_MOVED_TEMPORARILY, OR_FILEINFO, - "a document to be redirected, then the destination URL"), - AP_INIT_TAKE2("RedirectPermanent", add_redirect2, - (void *) HTTP_MOVED_PERMANENTLY, OR_FILEINFO, - "a document to be redirected, then the destination URL"), - {NULL} -}; - -static int alias_matches(const char *uri, const char *alias_fakename) -{ - const char *aliasp = alias_fakename, *urip = uri; - - while (*aliasp) { - if (*aliasp == '/') { - /* any number of '/' in the alias matches any number in - * the supplied URI, but there must be at least one... - */ - if (*urip != '/') - return 0; - - do { - ++aliasp; - } while (*aliasp == '/'); - do { - ++urip; - } while (*urip == '/'); - } - else { - /* Other characters are compared literally */ - if (*urip++ != *aliasp++) - return 0; - } - } - - /* Check last alias path component matched all the way */ - - if (aliasp[-1] != '/' && *urip != '\0' && *urip != '/') - return 0; - - /* Return number of characters from URI which matched (may be - * greater than length of alias, since we may have matched - * doubled slashes) - */ - - return urip - uri; -} - -static char *try_alias_list(request_rec *r, apr_array_header_t *aliases, - int doesc, int *status) -{ - alias_entry *entries = (alias_entry *) aliases->elts; - regmatch_t regm[AP_MAX_REG_MATCH]; - char *found = NULL; - int i; - - for (i = 0; i < aliases->nelts; ++i) { - alias_entry *p = &entries[i]; - int l; - - if (p->regexp) { - if (!ap_regexec(p->regexp, r->uri, AP_MAX_REG_MATCH, regm, 0)) { - if (p->real) { - found = ap_pregsub(r->pool, p->real, r->uri, - AP_MAX_REG_MATCH, regm); - if (found && doesc) { - apr_uri_t uri; - apr_uri_parse(r->pool, found, &uri); - /* Do not escape the query string or fragment. */ - found = apr_uri_unparse(r->pool, &uri, - APR_URI_UNP_OMITQUERY); - found = ap_escape_uri(r->pool, found); - if (uri.query) { - found = apr_pstrcat(r->pool, found, "?", - uri.query, NULL); - } - if (uri.fragment) { - found = apr_pstrcat(r->pool, found, "#", - uri.fragment, NULL); - } - } - } - else { - /* need something non-null */ - found = apr_pstrdup(r->pool, ""); - } - } - } - else { - l = alias_matches(r->uri, p->fake); - - if (l > 0) { - if (doesc) { - char *escurl; - escurl = ap_os_escape_path(r->pool, r->uri + l, 1); - - found = apr_pstrcat(r->pool, p->real, escurl, NULL); - } - else - found = apr_pstrcat(r->pool, p->real, r->uri + l, NULL); - } - } - - if (found) { - if (p->handler) { /* Set handler, and leave a note for mod_cgi */ - r->handler = p->handler; - apr_table_setn(r->notes, "alias-forced-type", r->handler); - } - /* XXX This is as SLOW as can be, next step, we optimize - * and merge to whatever part of the found path was already - * canonicalized. After I finish eliminating os canonical. - * Better fail test for ap_server_root_relative needed here. - */ - if (!doesc) { - found = ap_server_root_relative(r->pool, found); - } - if (found) { - *status = p->redir_status; - } - return found; - } - - } - - return NULL; -} - -static int translate_alias_redir(request_rec *r) -{ - ap_conf_vector_t *sconf = r->server->module_config; - alias_server_conf *serverconf = ap_get_module_config(sconf, &alias_module); - char *ret; - int status; - - if (r->uri[0] != '/' && r->uri[0] != '\0') { - return DECLINED; - } - - if ((ret = try_alias_list(r, serverconf->redirects, 1, &status)) != NULL) { - if (ap_is_HTTP_REDIRECT(status)) { - /* include QUERY_STRING if any */ - if (r->args) { - ret = apr_pstrcat(r->pool, ret, "?", r->args, NULL); - } - apr_table_setn(r->headers_out, "Location", ret); - } - return status; - } - - if ((ret = try_alias_list(r, serverconf->aliases, 0, &status)) != NULL) { - r->filename = ret; - return OK; - } - - return DECLINED; -} - -static int fixup_redir(request_rec *r) -{ - void *dconf = r->per_dir_config; - alias_dir_conf *dirconf = - (alias_dir_conf *) ap_get_module_config(dconf, &alias_module); - char *ret; - int status; - - /* It may have changed since last time, so try again */ - - if ((ret = try_alias_list(r, dirconf->redirects, 1, &status)) != NULL) { - if (ap_is_HTTP_REDIRECT(status)) { - if (ret[0] == '/') { - char *orig_target = ret; - - ret = ap_construct_url(r->pool, ret, r); - ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, - "incomplete redirection target of '%s' for " - "URI '%s' modified to '%s'", - orig_target, r->uri, ret); - } - if (!ap_is_url(ret)) { - status = HTTP_INTERNAL_SERVER_ERROR; - ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, - "cannot redirect '%s' to '%s'; " - "target is not a valid absoluteURI or abs_path", - r->uri, ret); - } - else { - /* append requested query only, if the config didn't - * supply its own. - */ - if (r->args && !ap_strchr(ret, '?')) { - ret = apr_pstrcat(r->pool, ret, "?", r->args, NULL); - } - apr_table_setn(r->headers_out, "Location", ret); - } - } - return status; - } - - return DECLINED; -} - -static void register_hooks(apr_pool_t *p) -{ - static const char * const aszSucc[]={ "mod_userdir.c", - "mod_vhost_alias.c",NULL }; - - ap_hook_translate_name(translate_alias_redir,NULL,aszSucc,APR_HOOK_MIDDLE); - ap_hook_fixups(fixup_redir,NULL,NULL,APR_HOOK_MIDDLE); -} - -module AP_MODULE_DECLARE_DATA alias_module = -{ - STANDARD20_MODULE_STUFF, - create_alias_dir_config, /* dir config creater */ - merge_alias_dir_config, /* dir merger --- default is to override */ - create_alias_config, /* server config */ - merge_alias_config, /* merge server configs */ - alias_cmds, /* command apr_table_t */ - register_hooks /* register hooks */ -}; |