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Apache 1.3.9 baseline for the Apache 2.0 repository.
Obtained from: Apache 1.3.9 (minus unused files), tag APACHE_1_3_9 Submitted by: Apache Group git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@83751 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Roy T. Fielding
898
modules/proxy/mod_proxy.c
Normal file
898
modules/proxy/mod_proxy.c
Normal file
@@ -0,0 +1,898 @@
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/* ====================================================================
|
||||
* Copyright (c) 1996-1999 The Apache Group. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* 3. All advertising materials mentioning features or use of this
|
||||
* software must display the following acknowledgment:
|
||||
* "This product includes software developed by the Apache Group
|
||||
* for use in the Apache HTTP server project (http://www.apache.org/)."
|
||||
*
|
||||
* 4. The names "Apache Server" and "Apache Group" must not be used to
|
||||
* endorse or promote products derived from this software without
|
||||
* prior written permission. For written permission, please contact
|
||||
* apache@apache.org.
|
||||
*
|
||||
* 5. Products derived from this software may not be called "Apache"
|
||||
* nor may "Apache" appear in their names without prior written
|
||||
* permission of the Apache Group.
|
||||
*
|
||||
* 6. Redistributions of any form whatsoever must retain the following
|
||||
* acknowledgment:
|
||||
* "This product includes software developed by the Apache Group
|
||||
* for use in the Apache HTTP server project (http://www.apache.org/)."
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
|
||||
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
|
||||
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
||||
* OF THE POSSIBILITY OF SUCH DAMAGE.
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||||
* ====================================================================
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||||
*
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||||
* This software consists of voluntary contributions made by many
|
||||
* individuals on behalf of the Apache Group and was originally based
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||||
* on public domain software written at the National Center for
|
||||
* Supercomputing Applications, University of Illinois, Urbana-Champaign.
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||||
* For more information on the Apache Group and the Apache HTTP server
|
||||
* project, please see <http://www.apache.org/>.
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*
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*/
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#include "mod_proxy.h"
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#define CORE_PRIVATE
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#include "http_log.h"
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#include "http_vhost.h"
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#include "http_request.h"
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/* Some WWW schemes and their default ports; this is basically /etc/services */
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/* This will become global when the protocol abstraction comes */
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static struct proxy_services defports[] =
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{
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{"http", DEFAULT_HTTP_PORT},
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{"ftp", DEFAULT_FTP_PORT},
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{"https", DEFAULT_HTTPS_PORT},
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{"gopher", DEFAULT_GOPHER_PORT},
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{"nntp", DEFAULT_NNTP_PORT},
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{"wais", DEFAULT_WAIS_PORT},
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{"snews", DEFAULT_SNEWS_PORT},
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{"prospero", DEFAULT_PROSPERO_PORT},
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{NULL, -1} /* unknown port */
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};
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/*
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* A Web proxy module. Stages:
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*
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* translate_name: set filename to proxy:<URL>
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* type_checker: set type to PROXY_MAGIC_TYPE if filename begins proxy:
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* fix_ups: convert the URL stored in the filename to the
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* canonical form.
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* handler: handle proxy requests
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*/
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/* -------------------------------------------------------------- */
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/* Translate the URL into a 'filename' */
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static int alias_match(const char *uri, const char *alias_fakename)
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{
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const char *end_fakename = alias_fakename + strlen(alias_fakename);
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const char *aliasp = alias_fakename, *urip = uri;
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while (aliasp < end_fakename) {
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if (*aliasp == '/') {
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/* any number of '/' in the alias matches any number in
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* the supplied URI, but there must be at least one...
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*/
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if (*urip != '/')
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return 0;
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while (*aliasp == '/')
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++aliasp;
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while (*urip == '/')
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++urip;
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}
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else {
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/* Other characters are compared literally */
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if (*urip++ != *aliasp++)
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return 0;
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}
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}
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/* Check last alias path component matched all the way */
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if (aliasp[-1] != '/' && *urip != '\0' && *urip != '/')
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return 0;
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/* Return number of characters from URI which matched (may be
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* greater than length of alias, since we may have matched
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* doubled slashes)
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*/
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return urip - uri;
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}
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/* Detect if an absoluteURI should be proxied or not. Note that we
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* have to do this during this phase because later phases are
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* "short-circuiting"... i.e. translate_names will end when the first
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* module returns OK. So for example, if the request is something like:
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*
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* GET http://othervhost/cgi-bin/printenv HTTP/1.0
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*
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* mod_alias will notice the /cgi-bin part and ScriptAlias it and
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* short-circuit the proxy... just because of the ordering in the
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* configuration file.
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*/
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static int proxy_detect(request_rec *r)
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{
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void *sconf = r->server->module_config;
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proxy_server_conf *conf;
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conf = (proxy_server_conf *) ap_get_module_config(sconf, &proxy_module);
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if (conf->req && r->parsed_uri.scheme) {
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/* but it might be something vhosted */
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if (!(r->parsed_uri.hostname
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&& !strcasecmp(r->parsed_uri.scheme, ap_http_method(r))
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&& ap_matches_request_vhost(r, r->parsed_uri.hostname,
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r->parsed_uri.port_str ? r->parsed_uri.port : ap_default_port(r)))) {
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r->proxyreq = 1;
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r->uri = r->unparsed_uri;
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r->filename = ap_pstrcat(r->pool, "proxy:", r->uri, NULL);
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r->handler = "proxy-server";
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}
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}
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/* We need special treatment for CONNECT proxying: it has no scheme part */
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else if (conf->req && r->method_number == M_CONNECT
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&& r->parsed_uri.hostname
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&& r->parsed_uri.port_str) {
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r->proxyreq = 1;
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r->uri = r->unparsed_uri;
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r->filename = ap_pstrcat(r->pool, "proxy:", r->uri, NULL);
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r->handler = "proxy-server";
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}
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return DECLINED;
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}
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static int proxy_trans(request_rec *r)
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{
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void *sconf = r->server->module_config;
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proxy_server_conf *conf =
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(proxy_server_conf *) ap_get_module_config(sconf, &proxy_module);
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int i, len;
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struct proxy_alias *ent = (struct proxy_alias *) conf->aliases->elts;
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if (r->proxyreq) {
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/* someone has already set up the proxy, it was possibly ourselves
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* in proxy_detect
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*/
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return OK;
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}
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/* XXX: since r->uri has been manipulated already we're not really
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* compliant with RFC1945 at this point. But this probably isn't
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* an issue because this is a hybrid proxy/origin server.
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*/
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for (i = 0; i < conf->aliases->nelts; i++) {
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len = alias_match(r->uri, ent[i].fake);
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if (len > 0) {
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r->filename = ap_pstrcat(r->pool, "proxy:", ent[i].real,
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r->uri + len, NULL);
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r->handler = "proxy-server";
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r->proxyreq = 1;
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return OK;
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}
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}
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return DECLINED;
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}
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/* -------------------------------------------------------------- */
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/* Fixup the filename */
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/*
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* Canonicalise the URL
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*/
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static int proxy_fixup(request_rec *r)
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{
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char *url, *p;
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if (!r->proxyreq || strncmp(r->filename, "proxy:", 6) != 0)
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return DECLINED;
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url = &r->filename[6];
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/* canonicalise each specific scheme */
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if (strncasecmp(url, "http:", 5) == 0)
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return ap_proxy_http_canon(r, url + 5, "http", DEFAULT_HTTP_PORT);
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else if (strncasecmp(url, "ftp:", 4) == 0)
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return ap_proxy_ftp_canon(r, url + 4);
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p = strchr(url, ':');
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if (p == NULL || p == url)
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return HTTP_BAD_REQUEST;
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return OK; /* otherwise; we've done the best we can */
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}
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static void proxy_init(server_rec *r, pool *p)
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{
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ap_proxy_garbage_init(r, p);
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}
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/* Send a redirection if the request contains a hostname which is not */
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/* fully qualified, i.e. doesn't have a domain name appended. Some proxy */
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/* servers like Netscape's allow this and access hosts from the local */
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/* domain in this case. I think it is better to redirect to a FQDN, since */
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/* these will later be found in the bookmarks files. */
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/* The "ProxyDomain" directive determines what domain will be appended */
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static int proxy_needsdomain(request_rec *r, const char *url, const char *domain)
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{
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char *nuri;
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const char *ref;
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/* We only want to worry about GETs */
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if (!r->proxyreq || r->method_number != M_GET || !r->parsed_uri.hostname)
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return DECLINED;
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/* If host does contain a dot already, or it is "localhost", decline */
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if (strchr(r->parsed_uri.hostname, '.') != NULL
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|| strcasecmp(r->parsed_uri.hostname, "localhost") == 0)
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return DECLINED; /* host name has a dot already */
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ref = ap_table_get(r->headers_in, "Referer");
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/* Reassemble the request, but insert the domain after the host name */
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/* Note that the domain name always starts with a dot */
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r->parsed_uri.hostname = ap_pstrcat(r->pool, r->parsed_uri.hostname,
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domain, NULL);
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nuri = ap_unparse_uri_components(r->pool,
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&r->parsed_uri,
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UNP_REVEALPASSWORD);
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ap_table_set(r->headers_out, "Location", nuri);
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ap_log_rerror(APLOG_MARK, APLOG_INFO|APLOG_NOERRNO, r,
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"Domain missing: %s sent to %s%s%s", r->uri,
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ap_unparse_uri_components(r->pool, &r->parsed_uri,
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UNP_OMITUSERINFO),
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ref ? " from " : "", ref ? ref : "");
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return HTTP_MOVED_PERMANENTLY;
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}
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/* -------------------------------------------------------------- */
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/* Invoke handler */
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static int proxy_handler(request_rec *r)
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{
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char *url, *scheme, *p;
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void *sconf = r->server->module_config;
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proxy_server_conf *conf =
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(proxy_server_conf *) ap_get_module_config(sconf, &proxy_module);
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array_header *proxies = conf->proxies;
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struct proxy_remote *ents = (struct proxy_remote *) proxies->elts;
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int i, rc;
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cache_req *cr;
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int direct_connect = 0;
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const char *maxfwd_str;
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if (!r->proxyreq || strncmp(r->filename, "proxy:", 6) != 0)
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return DECLINED;
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if (r->method_number == M_TRACE &&
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(maxfwd_str = ap_table_get(r->headers_in, "Max-Forwards")) != NULL) {
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int maxfwd = strtol(maxfwd_str, NULL, 10);
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if (maxfwd < 1) {
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int access_status;
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r->proxyreq = 0;
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if ((access_status = ap_send_http_trace(r)))
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ap_die(access_status, r);
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else
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ap_finalize_request_protocol(r);
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return OK;
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}
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ap_table_setn(r->headers_in, "Max-Forwards",
|
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ap_psprintf(r->pool, "%d", (maxfwd > 0) ? maxfwd-1 : 0));
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}
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if ((rc = ap_setup_client_block(r, REQUEST_CHUNKED_ERROR)))
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return rc;
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url = r->filename + 6;
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p = strchr(url, ':');
|
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if (p == NULL)
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return HTTP_BAD_REQUEST;
|
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rc = ap_proxy_cache_check(r, url, &conf->cache, &cr);
|
||||
if (rc != DECLINED)
|
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return rc;
|
||||
|
||||
/* If the host doesn't have a domain name, add one and redirect. */
|
||||
if (conf->domain != NULL) {
|
||||
rc = proxy_needsdomain(r, url, conf->domain);
|
||||
if (ap_is_HTTP_REDIRECT(rc))
|
||||
return HTTP_MOVED_PERMANENTLY;
|
||||
}
|
||||
|
||||
*p = '\0';
|
||||
scheme = ap_pstrdup(r->pool, url);
|
||||
*p = ':';
|
||||
|
||||
/* Check URI's destination host against NoProxy hosts */
|
||||
/* Bypass ProxyRemote server lookup if configured as NoProxy */
|
||||
/* we only know how to handle communication to a proxy via http */
|
||||
/*if (strcasecmp(scheme, "http") == 0) */
|
||||
{
|
||||
int ii;
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||||
struct dirconn_entry *list = (struct dirconn_entry *) conf->dirconn->elts;
|
||||
|
||||
for (direct_connect = ii = 0; ii < conf->dirconn->nelts && !direct_connect; ii++) {
|
||||
direct_connect = list[ii].matcher(&list[ii], r);
|
||||
}
|
||||
#if DEBUGGING
|
||||
ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, r,
|
||||
(direct_connect) ? "NoProxy for %s" : "UseProxy for %s",
|
||||
r->uri);
|
||||
#endif
|
||||
}
|
||||
|
||||
/* firstly, try a proxy, unless a NoProxy directive is active */
|
||||
|
||||
if (!direct_connect)
|
||||
for (i = 0; i < proxies->nelts; i++) {
|
||||
p = strchr(ents[i].scheme, ':'); /* is it a partial URL? */
|
||||
if (strcmp(ents[i].scheme, "*") == 0 ||
|
||||
(p == NULL && strcasecmp(scheme, ents[i].scheme) == 0) ||
|
||||
(p != NULL &&
|
||||
strncasecmp(url, ents[i].scheme, strlen(ents[i].scheme)) == 0)) {
|
||||
/* CONNECT is a special method that bypasses the normal
|
||||
* proxy code.
|
||||
*/
|
||||
if (r->method_number == M_CONNECT)
|
||||
rc = ap_proxy_connect_handler(r, cr, url, ents[i].hostname,
|
||||
ents[i].port);
|
||||
/* we only know how to handle communication to a proxy via http */
|
||||
else if (strcasecmp(ents[i].protocol, "http") == 0)
|
||||
rc = ap_proxy_http_handler(r, cr, url, ents[i].hostname,
|
||||
ents[i].port);
|
||||
else
|
||||
rc = DECLINED;
|
||||
|
||||
/* an error or success */
|
||||
if (rc != DECLINED && rc != HTTP_BAD_GATEWAY)
|
||||
return rc;
|
||||
/* we failed to talk to the upstream proxy */
|
||||
}
|
||||
}
|
||||
|
||||
/* otherwise, try it direct */
|
||||
/* N.B. what if we're behind a firewall, where we must use a proxy or
|
||||
* give up??
|
||||
*/
|
||||
/* handle the scheme */
|
||||
if (r->method_number == M_CONNECT)
|
||||
return ap_proxy_connect_handler(r, cr, url, NULL, 0);
|
||||
if (strcasecmp(scheme, "http") == 0)
|
||||
return ap_proxy_http_handler(r, cr, url, NULL, 0);
|
||||
if (strcasecmp(scheme, "ftp") == 0)
|
||||
return ap_proxy_ftp_handler(r, cr, url);
|
||||
else
|
||||
return HTTP_FORBIDDEN;
|
||||
}
|
||||
|
||||
/* -------------------------------------------------------------- */
|
||||
/* Setup configurable data */
|
||||
|
||||
static void *
|
||||
create_proxy_config(pool *p, server_rec *s)
|
||||
{
|
||||
proxy_server_conf *ps = ap_pcalloc(p, sizeof(proxy_server_conf));
|
||||
|
||||
ps->proxies = ap_make_array(p, 10, sizeof(struct proxy_remote));
|
||||
ps->aliases = ap_make_array(p, 10, sizeof(struct proxy_alias));
|
||||
ps->raliases = ap_make_array(p, 10, sizeof(struct proxy_alias));
|
||||
ps->noproxies = ap_make_array(p, 10, sizeof(struct noproxy_entry));
|
||||
ps->dirconn = ap_make_array(p, 10, sizeof(struct dirconn_entry));
|
||||
ps->nocaches = ap_make_array(p, 10, sizeof(struct nocache_entry));
|
||||
ps->allowed_connect_ports = ap_make_array(p, 10, sizeof(int));
|
||||
ps->domain = NULL;
|
||||
ps->viaopt = via_off; /* initially backward compatible with 1.3.1 */
|
||||
ps->req = 0;
|
||||
|
||||
ps->cache.root = NULL;
|
||||
ps->cache.space = DEFAULT_CACHE_SPACE;
|
||||
ps->cache.maxexpire = DEFAULT_CACHE_MAXEXPIRE;
|
||||
ps->cache.defaultexpire = DEFAULT_CACHE_EXPIRE;
|
||||
ps->cache.lmfactor = DEFAULT_CACHE_LMFACTOR;
|
||||
ps->cache.gcinterval = -1;
|
||||
/* at these levels, the cache can have 2^18 directories (256,000) */
|
||||
ps->cache.dirlevels = 3;
|
||||
ps->cache.dirlength = 1;
|
||||
ps->cache.cache_completion = DEFAULT_CACHE_COMPLETION;
|
||||
|
||||
return ps;
|
||||
}
|
||||
|
||||
static const char *
|
||||
add_proxy(cmd_parms *cmd, void *dummy, char *f, char *r)
|
||||
{
|
||||
server_rec *s = cmd->server;
|
||||
proxy_server_conf *conf =
|
||||
(proxy_server_conf *) ap_get_module_config(s->module_config, &proxy_module);
|
||||
struct proxy_remote *new;
|
||||
char *p, *q;
|
||||
int port;
|
||||
|
||||
p = strchr(r, ':');
|
||||
if (p == NULL || p[1] != '/' || p[2] != '/' || p[3] == '\0')
|
||||
return "ProxyRemote: Bad syntax for a remote proxy server";
|
||||
q = strchr(p + 3, ':');
|
||||
if (q != NULL) {
|
||||
if (sscanf(q + 1, "%u", &port) != 1 || port > 65535)
|
||||
return "ProxyRemote: Bad syntax for a remote proxy server (bad port number)";
|
||||
*q = '\0';
|
||||
}
|
||||
else
|
||||
port = -1;
|
||||
*p = '\0';
|
||||
if (strchr(f, ':') == NULL)
|
||||
ap_str_tolower(f); /* lowercase scheme */
|
||||
ap_str_tolower(p + 3); /* lowercase hostname */
|
||||
|
||||
if (port == -1) {
|
||||
int i;
|
||||
for (i = 0; defports[i].scheme != NULL; i++)
|
||||
if (strcasecmp(defports[i].scheme, r) == 0)
|
||||
break;
|
||||
port = defports[i].port;
|
||||
}
|
||||
|
||||
new = ap_push_array(conf->proxies);
|
||||
new->scheme = f;
|
||||
new->protocol = r;
|
||||
new->hostname = p + 3;
|
||||
new->port = port;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
add_pass(cmd_parms *cmd, void *dummy, char *f, char *r)
|
||||
{
|
||||
server_rec *s = cmd->server;
|
||||
proxy_server_conf *conf =
|
||||
(proxy_server_conf *) ap_get_module_config(s->module_config, &proxy_module);
|
||||
struct proxy_alias *new;
|
||||
|
||||
new = ap_push_array(conf->aliases);
|
||||
new->fake = f;
|
||||
new->real = r;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
add_pass_reverse(cmd_parms *cmd, void *dummy, char *f, char *r)
|
||||
{
|
||||
server_rec *s = cmd->server;
|
||||
proxy_server_conf *conf;
|
||||
struct proxy_alias *new;
|
||||
|
||||
conf = (proxy_server_conf *)ap_get_module_config(s->module_config,
|
||||
&proxy_module);
|
||||
new = ap_push_array(conf->raliases);
|
||||
new->fake = f;
|
||||
new->real = r;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_proxy_exclude(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
server_rec *s = parms->server;
|
||||
proxy_server_conf *conf =
|
||||
ap_get_module_config(s->module_config, &proxy_module);
|
||||
struct noproxy_entry *new;
|
||||
struct noproxy_entry *list = (struct noproxy_entry *) conf->noproxies->elts;
|
||||
struct hostent hp;
|
||||
int found = 0;
|
||||
int i;
|
||||
|
||||
/* Don't duplicate entries */
|
||||
for (i = 0; i < conf->noproxies->nelts; i++) {
|
||||
if (strcasecmp(arg, list[i].name) == 0) /* ignore case for host names */
|
||||
found = 1;
|
||||
}
|
||||
|
||||
if (!found) {
|
||||
new = ap_push_array(conf->noproxies);
|
||||
new->name = arg;
|
||||
/* Don't do name lookups on things that aren't dotted */
|
||||
if (strchr(arg, '.') != NULL && ap_proxy_host2addr(new->name, &hp) == NULL)
|
||||
/*@@@FIXME: This copies only the first of (possibly many) IP addrs */
|
||||
memcpy(&new->addr, hp.h_addr, sizeof(struct in_addr));
|
||||
else
|
||||
new->addr.s_addr = 0;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Set the ports CONNECT can use
|
||||
*/
|
||||
static const char *
|
||||
set_allowed_ports(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
server_rec *s = parms->server;
|
||||
proxy_server_conf *conf =
|
||||
ap_get_module_config(s->module_config, &proxy_module);
|
||||
int *New;
|
||||
|
||||
if (!ap_isdigit(arg[0]))
|
||||
return "AllowCONNECT: port number must be numeric";
|
||||
|
||||
New = ap_push_array(conf->allowed_connect_ports);
|
||||
*New = atoi(arg);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Similar to set_proxy_exclude(), but defining directly connected hosts,
|
||||
* which should never be accessed via the configured ProxyRemote servers
|
||||
*/
|
||||
static const char *
|
||||
set_proxy_dirconn(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
server_rec *s = parms->server;
|
||||
proxy_server_conf *conf =
|
||||
ap_get_module_config(s->module_config, &proxy_module);
|
||||
struct dirconn_entry *New;
|
||||
struct dirconn_entry *list = (struct dirconn_entry *) conf->dirconn->elts;
|
||||
int found = 0;
|
||||
int i;
|
||||
|
||||
/* Don't duplicate entries */
|
||||
for (i = 0; i < conf->dirconn->nelts; i++) {
|
||||
if (strcasecmp(arg, list[i].name) == 0)
|
||||
found = 1;
|
||||
}
|
||||
|
||||
if (!found) {
|
||||
New = ap_push_array(conf->dirconn);
|
||||
New->name = arg;
|
||||
New->hostentry = NULL;
|
||||
|
||||
if (ap_proxy_is_ipaddr(New, parms->pool)) {
|
||||
#if DEBUGGING
|
||||
fprintf(stderr, "Parsed addr %s\n", inet_ntoa(New->addr));
|
||||
fprintf(stderr, "Parsed mask %s\n", inet_ntoa(New->mask));
|
||||
#endif
|
||||
}
|
||||
else if (ap_proxy_is_domainname(New, parms->pool)) {
|
||||
ap_str_tolower(New->name);
|
||||
#if DEBUGGING
|
||||
fprintf(stderr, "Parsed domain %s\n", New->name);
|
||||
#endif
|
||||
}
|
||||
else if (ap_proxy_is_hostname(New, parms->pool)) {
|
||||
ap_str_tolower(New->name);
|
||||
#if DEBUGGING
|
||||
fprintf(stderr, "Parsed host %s\n", New->name);
|
||||
#endif
|
||||
}
|
||||
else {
|
||||
ap_proxy_is_word(New, parms->pool);
|
||||
#if DEBUGGING
|
||||
fprintf(stderr, "Parsed word %s\n", New->name);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_proxy_domain(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
|
||||
if (arg[0] != '.')
|
||||
return "ProxyDomain: domain name must start with a dot.";
|
||||
|
||||
psf->domain = arg;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_proxy_req(cmd_parms *parms, void *dummy, int flag)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
|
||||
psf->req = flag;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
static const char *
|
||||
set_cache_size(cmd_parms *parms, char *struct_ptr, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
int val;
|
||||
|
||||
if (sscanf(arg, "%d", &val) != 1)
|
||||
return "CacheSize value must be an integer (kBytes)";
|
||||
psf->cache.space = val;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_cache_root(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
|
||||
psf->cache.root = arg;
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_cache_factor(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
double val;
|
||||
|
||||
if (sscanf(arg, "%lg", &val) != 1)
|
||||
return "CacheLastModifiedFactor value must be a float";
|
||||
psf->cache.lmfactor = val;
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_cache_maxex(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
double val;
|
||||
|
||||
if (sscanf(arg, "%lg", &val) != 1)
|
||||
return "CacheMaxExpire value must be a float";
|
||||
psf->cache.maxexpire = (int) (val * (double) SEC_ONE_HR);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_cache_defex(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
double val;
|
||||
|
||||
if (sscanf(arg, "%lg", &val) != 1)
|
||||
return "CacheDefaultExpire value must be a float";
|
||||
psf->cache.defaultexpire = (int) (val * (double) SEC_ONE_HR);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_cache_gcint(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
double val;
|
||||
|
||||
if (sscanf(arg, "%lg", &val) != 1)
|
||||
return "CacheGcInterval value must be a float";
|
||||
psf->cache.gcinterval = (int) (val * (double) SEC_ONE_HR);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_cache_dirlevels(cmd_parms *parms, char *struct_ptr, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
int val;
|
||||
|
||||
val = atoi(arg);
|
||||
if (val < 1)
|
||||
return "CacheDirLevels value must be an integer greater than 0";
|
||||
if (val * psf->cache.dirlength > CACHEFILE_LEN)
|
||||
return "CacheDirLevels*CacheDirLength value must not be higher than 20";
|
||||
psf->cache.dirlevels = val;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_cache_dirlength(cmd_parms *parms, char *struct_ptr, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
int val;
|
||||
|
||||
val = atoi(arg);
|
||||
if (val < 1)
|
||||
return "CacheDirLength value must be an integer greater than 0";
|
||||
if (val * psf->cache.dirlevels > CACHEFILE_LEN)
|
||||
return "CacheDirLevels*CacheDirLength value must not be higher than 20";
|
||||
psf->cache.dirlength = val;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_cache_exclude(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
server_rec *s = parms->server;
|
||||
proxy_server_conf *conf =
|
||||
ap_get_module_config(s->module_config, &proxy_module);
|
||||
struct nocache_entry *new;
|
||||
struct nocache_entry *list = (struct nocache_entry *) conf->nocaches->elts;
|
||||
struct hostent hp;
|
||||
int found = 0;
|
||||
int i;
|
||||
|
||||
/* Don't duplicate entries */
|
||||
for (i = 0; i < conf->nocaches->nelts; i++) {
|
||||
if (strcasecmp(arg, list[i].name) == 0) /* ignore case for host names */
|
||||
found = 1;
|
||||
}
|
||||
|
||||
if (!found) {
|
||||
new = ap_push_array(conf->nocaches);
|
||||
new->name = arg;
|
||||
/* Don't do name lookups on things that aren't dotted */
|
||||
if (strchr(arg, '.') != NULL && ap_proxy_host2addr(new->name, &hp) == NULL)
|
||||
/*@@@FIXME: This copies only the first of (possibly many) IP addrs */
|
||||
memcpy(&new->addr, hp.h_addr, sizeof(struct in_addr));
|
||||
else
|
||||
new->addr.s_addr = 0;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char *
|
||||
set_recv_buffer_size(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
int s = atoi(arg);
|
||||
if (s < 512 && s != 0) {
|
||||
return "ProxyReceiveBufferSize must be >= 512 bytes, or 0 for system default.";
|
||||
}
|
||||
|
||||
psf->recv_buffer_size = s;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char*
|
||||
set_cache_completion(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
int s = atoi(arg);
|
||||
if (s > 100 || s < 0) {
|
||||
return "CacheForceCompletion must be <= 100 percent, "
|
||||
"or 0 for system default.";
|
||||
}
|
||||
|
||||
if (s > 0)
|
||||
psf->cache.cache_completion = ((float)s / 100);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const char*
|
||||
set_via_opt(cmd_parms *parms, void *dummy, char *arg)
|
||||
{
|
||||
proxy_server_conf *psf =
|
||||
ap_get_module_config(parms->server->module_config, &proxy_module);
|
||||
|
||||
if (strcasecmp(arg, "Off") == 0)
|
||||
psf->viaopt = via_off;
|
||||
else if (strcasecmp(arg, "On") == 0)
|
||||
psf->viaopt = via_on;
|
||||
else if (strcasecmp(arg, "Block") == 0)
|
||||
psf->viaopt = via_block;
|
||||
else if (strcasecmp(arg, "Full") == 0)
|
||||
psf->viaopt = via_full;
|
||||
else {
|
||||
return "ProxyVia must be one of: "
|
||||
"off | on | full | block";
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const handler_rec proxy_handlers[] =
|
||||
{
|
||||
{"proxy-server", proxy_handler},
|
||||
{NULL}
|
||||
};
|
||||
|
||||
static const command_rec proxy_cmds[] =
|
||||
{
|
||||
{"ProxyRequests", set_proxy_req, NULL, RSRC_CONF, FLAG,
|
||||
"on if the true proxy requests should be accepted"},
|
||||
{"ProxyRemote", add_proxy, NULL, RSRC_CONF, TAKE2,
|
||||
"a scheme, partial URL or '*' and a proxy server"},
|
||||
{"ProxyPass", add_pass, NULL, RSRC_CONF, TAKE2,
|
||||
"a virtual path and a URL"},
|
||||
{"ProxyPassReverse", add_pass_reverse, NULL, RSRC_CONF, TAKE2,
|
||||
"a virtual path and a URL for reverse proxy behaviour"},
|
||||
{"ProxyBlock", set_proxy_exclude, NULL, RSRC_CONF, ITERATE,
|
||||
"A list of names, hosts or domains to which the proxy will not connect"},
|
||||
{"ProxyReceiveBufferSize", set_recv_buffer_size, NULL, RSRC_CONF, TAKE1,
|
||||
"Receive buffer size for outgoing HTTP and FTP connections in bytes"},
|
||||
{"NoProxy", set_proxy_dirconn, NULL, RSRC_CONF, ITERATE,
|
||||
"A list of domains, hosts, or subnets to which the proxy will connect directly"},
|
||||
{"ProxyDomain", set_proxy_domain, NULL, RSRC_CONF, TAKE1,
|
||||
"The default intranet domain name (in absence of a domain in the URL)"},
|
||||
{"AllowCONNECT", set_allowed_ports, NULL, RSRC_CONF, ITERATE,
|
||||
"A list of ports which CONNECT may connect to"},
|
||||
{"CacheRoot", set_cache_root, NULL, RSRC_CONF, TAKE1,
|
||||
"The directory to store cache files"},
|
||||
{"CacheSize", set_cache_size, NULL, RSRC_CONF, TAKE1,
|
||||
"The maximum disk space used by the cache in Kb"},
|
||||
{"CacheMaxExpire", set_cache_maxex, NULL, RSRC_CONF, TAKE1,
|
||||
"The maximum time in hours to cache a document"},
|
||||
{"CacheDefaultExpire", set_cache_defex, NULL, RSRC_CONF, TAKE1,
|
||||
"The default time in hours to cache a document"},
|
||||
{"CacheLastModifiedFactor", set_cache_factor, NULL, RSRC_CONF, TAKE1,
|
||||
"The factor used to estimate Expires date from LastModified date"},
|
||||
{"CacheGcInterval", set_cache_gcint, NULL, RSRC_CONF, TAKE1,
|
||||
"The interval between garbage collections, in hours"},
|
||||
{"CacheDirLevels", set_cache_dirlevels, NULL, RSRC_CONF, TAKE1,
|
||||
"The number of levels of subdirectories in the cache"},
|
||||
{"CacheDirLength", set_cache_dirlength, NULL, RSRC_CONF, TAKE1,
|
||||
"The number of characters in subdirectory names"},
|
||||
{"NoCache", set_cache_exclude, NULL, RSRC_CONF, ITERATE,
|
||||
"A list of names, hosts or domains for which caching is *not* provided"},
|
||||
{"CacheForceCompletion", set_cache_completion, NULL, RSRC_CONF, TAKE1,
|
||||
"Force a http cache completion after this percentage is loaded"},
|
||||
{"ProxyVia", set_via_opt, NULL, RSRC_CONF, TAKE1,
|
||||
"Configure Via: proxy header header to one of: on | off | block | full"},
|
||||
{NULL}
|
||||
};
|
||||
|
||||
module MODULE_VAR_EXPORT proxy_module =
|
||||
{
|
||||
STANDARD_MODULE_STUFF,
|
||||
proxy_init, /* initializer */
|
||||
NULL, /* create per-directory config structure */
|
||||
NULL, /* merge per-directory config structures */
|
||||
create_proxy_config, /* create per-server config structure */
|
||||
NULL, /* merge per-server config structures */
|
||||
proxy_cmds, /* command table */
|
||||
proxy_handlers, /* handlers */
|
||||
proxy_trans, /* translate_handler */
|
||||
NULL, /* check_user_id */
|
||||
NULL, /* check auth */
|
||||
NULL, /* check access */
|
||||
NULL, /* type_checker */
|
||||
proxy_fixup, /* pre-run fixups */
|
||||
NULL, /* logger */
|
||||
NULL, /* header parser */
|
||||
NULL, /* child_init */
|
||||
NULL, /* child_exit */
|
||||
proxy_detect /* post read-request */
|
||||
};
|
||||
Reference in New Issue
Block a user