mod_proxy.c revision 9e2bc52b9409a8d92ce1acd4f6127159a16cbff2
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* ====================================================================
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * The Apache Software License, Version 1.1
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * Copyright (c) 2000-2001 The Apache Software Foundation. All rights
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * Redistribution and use in source and binary forms, with or without
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * modification, are permitted provided that the following conditions
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * 1. Redistributions of source code must retain the above copyright
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * notice, this list of conditions and the following disclaimer.
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * 2. Redistributions in binary form must reproduce the above copyright
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * notice, this list of conditions and the following disclaimer in
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * the documentation and/or other materials provided with the
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * distribution.
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * 3. The end-user documentation included with the redistribution,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * if any, must include the following acknowledgment:
1e622ddf5a057555db1924ddc88475c695c6f7f2Alexis Tsogias * "This product includes software developed by the
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * Apache Software Foundation (http://www.apache.org/)."
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * Alternately, this acknowledgment may appear in the software itself,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * if and wherever such third-party acknowledgments normally appear.
1e622ddf5a057555db1924ddc88475c695c6f7f2Alexis Tsogias * 4. The names "Apache" and "Apache Software Foundation" must
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * not be used to endorse or promote products derived from this
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * software without prior written permission. For written
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * permission, please contact apache@apache.org.
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * 5. Products derived from this software may not be called "Apache",
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * nor may "Apache" appear in their name, without prior written
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * permission of the Apache Software Foundation.
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * SUCH DAMAGE.
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * ====================================================================
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * This software consists of voluntary contributions made by many
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * individuals on behalf of the Apache Software Foundation. For more
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * information on the Apache Software Foundation, please see
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * Portions of this software are based upon public domain software
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * originally written at the National Center for Supercomputing Applications,
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * University of Illinois, Urbana-Champaign.
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogiasextern module AP_MODULE_DECLARE_DATA proxy_module;
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * A Web proxy module. Stages:
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * translate_name: set filename to proxy:<URL>
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * map_to_storage: run proxy_walk (rather than directory_walk/file_walk)
4cea468e955597a7069faba3f43f27e913f2b651Alexis Tsogias * can't trust directory_walk/file_walk since these are
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * not in our filesystem. Prevents mod_http from serving
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * the TRACE request we will set aside to handle later.
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * type_checker: set type to PROXY_MAGIC_TYPE if filename begins proxy:
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * fix_ups: convert the URL stored in the filename to the
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * canonical form.
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * handler: handle proxy requests
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* -------------------------------------------------------------- */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* Translate the URL into a 'filename' */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogiasstatic int alias_match(const char *uri, const char *alias_fakename)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias const char *end_fakename = alias_fakename + strlen(alias_fakename);
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias const char *aliasp = alias_fakename, *urip = uri;
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* any number of '/' in the alias matches any number in
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * the supplied URI, but there must be at least one...
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* Other characters are compared literally */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* Check last alias path component matched all the way */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if (aliasp[-1] != '/' && *urip != '\0' && *urip != '/')
1e622ddf5a057555db1924ddc88475c695c6f7f2Alexis Tsogias /* Return number of characters from URI which matched (may be
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * greater than length of alias, since we may have matched
4cea468e955597a7069faba3f43f27e913f2b651Alexis Tsogias * doubled slashes)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* Detect if an absoluteURI should be proxied or not. Note that we
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * have to do this during this phase because later phases are
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * "short-circuiting"... i.e. translate_names will end when the first
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * module returns OK. So for example, if the request is something like:
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * GET http://othervhost/cgi-bin/printenv HTTP/1.0
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * mod_alias will notice the /cgi-bin part and ScriptAlias it and
1e622ddf5a057555db1924ddc88475c695c6f7f2Alexis Tsogias * short-circuit the proxy... just because of the ordering in the
e21e5f0fa66bf80e14cfd3f571e09b3952e46ad9Alexis Tsogias * configuration file.
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias conf = (proxy_server_conf *) ap_get_module_config(sconf, &proxy_module);
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* Ick... msvc (perhaps others) promotes ternary short results to int */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* but it might be something vhosted */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias && !strcasecmp(r->parsed_uri.scheme, ap_http_method(r))
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias && ap_matches_request_vhost(r, r->parsed_uri.hostname,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias (apr_port_t)(r->parsed_uri.port_str ? r->parsed_uri.port
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias r->filename = apr_pstrcat(r->pool, "proxy:", r->uri, NULL);
4cea468e955597a7069faba3f43f27e913f2b651Alexis Tsogias /* We need special treatment for CONNECT proxying: it has no scheme part */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias else if (conf->req && r->method_number == M_CONNECT
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias r->filename = apr_pstrcat(r->pool, "proxy:", r->uri, NULL);
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias (proxy_server_conf *) ap_get_module_config(sconf, &proxy_module);
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias struct proxy_alias *ent = (struct proxy_alias *) conf->aliases->elts;
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* someone has already set up the proxy, it was possibly ourselves
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * in proxy_detect
4cea468e955597a7069faba3f43f27e913f2b651Alexis Tsogias /* XXX: since r->uri has been manipulated already we're not really
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * compliant with RFC1945 at this point. But this probably isn't
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * an issue because this is a hybrid proxy/origin server.
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if ((ent[i].real[0] == '!' ) && ( ent[i].real[1] == 0 )) {
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias r->filename = apr_pstrcat(r->pool, "proxy:", ent[i].real,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias proxy_server_conf *sconf = ap_get_module_config(r->server->module_config,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias ap_conf_vector_t *per_dir_defaults = r->server->lookup_defaults;
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias ap_conf_vector_t **sec_proxy = (ap_conf_vector_t **) sconf->sec_proxy->elts;
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* XXX: shouldn't we use URI here? Canonicalize it first?
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * Pass over "proxy:" prefix
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias for (j = 0; j < num_sec; ++j)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias entry_proxy = ap_get_module_config(entry_config, &proxy_module);
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* XXX: What about case insensitive matching ???
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * Compare regex, fnmatch or string as appropriate
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * If the entry doesn't relate, then continue
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias ? ap_regexec(entry_proxy->r, proxyname, 0, NULL, 0)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias per_dir_defaults = ap_merge_per_dir_configs(r->pool, per_dir_defaults,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if (!r->proxyreq || strncmp(r->filename, "proxy:", 6) != 0)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* Don't let the core or mod_http map_to_storage hooks handle this,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * We don't need directory/file_walk, and we want to TRACE on our own.
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* -------------------------------------------------------------- */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* Fixup the filename */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias * Canonicalise the URL
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if (!r->proxyreq || strncmp(r->filename, "proxy:", 6) != 0)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* XXX: Shouldn't we try this before we run the proxy_walk? */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* canonicalise each specific scheme */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if ((access_status = proxy_run_canon_handler(r, url))) {
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias return OK; /* otherwise; we've done the best we can */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* Send a redirection if the request contains a hostname which is not */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* fully qualified, i.e. doesn't have a domain name appended. Some proxy */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* servers like Netscape's allow this and access hosts from the local */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* domain in this case. I think it is better to redirect to a FQDN, since */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* these will later be found in the bookmarks files. */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* The "ProxyDomain" directive determines what domain will be appended */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogiasstatic int proxy_needsdomain(request_rec *r, const char *url, const char *domain)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* We only want to worry about GETs */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if (!r->proxyreq || r->method_number != M_GET || !r->parsed_uri.hostname)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* If host does contain a dot already, or it is "localhost", decline */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if (strchr(r->parsed_uri.hostname, '.') != NULL
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias || strcasecmp(r->parsed_uri.hostname, "localhost") == 0)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias return DECLINED; /* host name has a dot already */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias ref = apr_table_get(r->headers_in, "Referer");
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* Reassemble the request, but insert the domain after the host name */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* Note that the domain name always starts with a dot */
4cea468e955597a7069faba3f43f27e913f2b651Alexis Tsogias r->parsed_uri.hostname = apr_pstrcat(r->pool, r->parsed_uri.hostname,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias apr_table_set(r->headers_out, "Location", nuri);
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias ap_log_rerror(APLOG_MARK, APLOG_INFO|APLOG_NOERRNO, 0, r,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* -------------------------------------------------------------- */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias/* Invoke handler */
4cea468e955597a7069faba3f43f27e913f2b651Alexis Tsogias const char *p2;
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias proxy_server_conf *conf = (proxy_server_conf *)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias struct proxy_remote *ents = (struct proxy_remote *) proxies->elts;
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* is this for us? */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if (!r->proxyreq || strncmp(r->filename, "proxy:", 6) != 0)
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* handle max-forwards / OPTIONS / TRACE */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if ((str = apr_table_get(r->headers_in, "Max-Forwards"))) {
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if ((access_status = ap_send_http_options(r)))
1e622ddf5a057555db1924ddc88475c695c6f7f2Alexis Tsogias "Max-Forwards has reached zero - proxy loop?");
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* set configured max-forwards */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias apr_psprintf(r->pool, "%ld", (maxfwd > 0) ? maxfwd : 0));
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if ((rc = ap_setup_client_block(r, REQUEST_CHUNKED_ERROR)))
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* If the host doesn't have a domain name, add one and redirect. */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias rc = proxy_needsdomain(r, url, conf->domain);
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* Check URI's destination host against NoProxy hosts */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* Bypass ProxyRemote server lookup if configured as NoProxy */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* we only know how to handle communication to a proxy via http */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /*if (strcasecmp(scheme, "http") == 0) */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias struct dirconn_entry *list = (struct dirconn_entry *) conf->dirconn->elts;
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias for (direct_connect = ii = 0; ii < conf->dirconn->nelts && !direct_connect; ii++) {
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias direct_connect = list[ii].matcher(&list[ii], r);
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, r,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias (direct_connect) ? "NoProxy for %s" : "UseProxy for %s",
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* firstly, try a proxy, unless a NoProxy directive is active */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias p2 = ap_strchr_c(ents[i].scheme, ':'); /* is it a partial URL? */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias (p2 == NULL && strcasecmp(scheme, ents[i].scheme) == 0) ||
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias strncasecmp(url, ents[i].scheme, strlen(ents[i].scheme)) == 0)) {
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* handle the scheme */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias ap_log_error(APLOG_MARK, APLOG_DEBUG | APLOG_NOERRNO, 0, r->server,
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias "Trying to run scheme_handler against proxy");
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias access_status = proxy_run_scheme_handler(r, conf, url, ents[i].hostname, ents[i].port);
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* an error or success */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias if (access_status != DECLINED && access_status != HTTP_BAD_GATEWAY) {
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* we failed to talk to the upstream proxy */
12f6880fc0909e8dc2bdebc5f299a6a8bfa8afa7Alexis Tsogias /* otherwise, try it direct */
1e622ddf5a057555db1924ddc88475c695c6f7f2Alexis Tsogias /* N.B. what if we're behind a firewall, where we must use a proxy or
r->uri);
return HTTP_FORBIDDEN;
return access_status;
return ps;
ps->allowed_connect_ports = apr_array_append(p, base->allowed_connect_ports, overrides->allowed_connect_ports);
ps->recv_buffer_size = (overrides->recv_buffer_size_set == 0) ? base->recv_buffer_size : overrides->recv_buffer_size;
ps->error_override = (overrides->error_override_set == 0) ? base->error_override : overrides->error_override;
ps->preserve_host = (overrides->preserve_host_set == 0) ? base->preserve_host : overrides->preserve_host;
return ps;
return (void *) new;
return new;
char *r, *f, *scheme;
int port;
scheme[p-r] = 0;
if (q != NULL) {
return NULL;
if ( r== NULL)
return NULL;
&proxy_module);
if ( r == NULL)
return NULL;
int found = 0;
if (!found) {
return NULL;
int *New;
return NULL;
int found = 0;
if (!found) {
#if DEBUGGING
#if DEBUGGING
#if DEBUGGING
#if DEBUGGING
return NULL;
return NULL;
return NULL;
return NULL;
return NULL;
return NULL;
return NULL;
int timeout;
return NULL;
return NULL;
&proxy_module);
const char *errmsg;
return err;
if (!arg) {
return errmsg;
conf->r = r;
return NULL;
{NULL}