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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86712 13f79535-47bb-0310-9956-ffa450edef68
723 lines
23 KiB
C
723 lines
23 KiB
C
/* ====================================================================
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* The Apache Software License, Version 1.1
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*
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* Copyright (c) 2000 The Apache Software Foundation. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Apache" and "Apache Software Foundation" must
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* not be used to endorse or promote products derived from this
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* software without prior written permission. For written
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* permission, please contact apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache",
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* nor may "Apache" appear in their name, without prior written
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* permission of the Apache Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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* Portions of this software are based upon public domain software
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* originally written at the National Center for Supercomputing Applications,
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* University of Illinois, Urbana-Champaign.
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*/
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/*
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* http_script: keeps all script-related ramblings together.
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*
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* Compliant to CGI/1.1 spec
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*
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* Adapted by rst from original NCSA code by Rob McCool
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*
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* Apache adds some new env vars; REDIRECT_URL and REDIRECT_QUERY_STRING for
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* custom error responses, and DOCUMENT_ROOT because we found it useful.
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* It also adds SERVER_ADMIN - useful for scripts to know who to mail when
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* they fail.
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*/
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#define CORE_PRIVATE
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#include "apr_strings.h"
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#include "ap_buckets.h"
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#include "util_filter.h"
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#include "ap_config.h"
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#include "httpd.h"
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#include "http_config.h"
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#include "http_request.h"
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#include "http_core.h"
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#include "http_protocol.h"
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#include "http_main.h"
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#include "http_log.h"
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#include "util_script.h"
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#include "ap_mpm.h"
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#include "http_conf_globals.h"
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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module AP_MODULE_DECLARE_DATA cgi_module;
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/* KLUDGE --- for back-combatibility, we don't have to check ExecCGI
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* in ScriptAliased directories, which means we need to know if this
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* request came through ScriptAlias or not... so the Alias module
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* leaves a note for us.
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*/
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static int is_scriptaliased(request_rec *r)
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{
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const char *t = apr_table_get(r->notes, "alias-forced-type");
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return t && (!strcasecmp(t, "cgi-script"));
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}
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/* Configuration stuff */
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#define DEFAULT_LOGBYTES 10385760
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#define DEFAULT_BUFBYTES 1024
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typedef struct {
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const char *logname;
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long logbytes;
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int bufbytes;
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} cgi_server_conf;
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static void *create_cgi_config(apr_pool_t *p, server_rec *s)
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{
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cgi_server_conf *c =
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(cgi_server_conf *) apr_pcalloc(p, sizeof(cgi_server_conf));
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c->logname = NULL;
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c->logbytes = DEFAULT_LOGBYTES;
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c->bufbytes = DEFAULT_BUFBYTES;
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return c;
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}
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static void *merge_cgi_config(apr_pool_t *p, void *basev, void *overridesv)
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{
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cgi_server_conf *base = (cgi_server_conf *) basev, *overrides = (cgi_server_conf *) overridesv;
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return overrides->logname ? overrides : base;
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}
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static const char *set_scriptlog(cmd_parms *cmd, void *dummy, const char *arg)
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{
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server_rec *s = cmd->server;
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cgi_server_conf *conf =
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(cgi_server_conf *) ap_get_module_config(s->module_config, &cgi_module);
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conf->logname = arg;
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return NULL;
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}
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static const char *set_scriptlog_length(cmd_parms *cmd, void *dummy,
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const char *arg)
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{
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server_rec *s = cmd->server;
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cgi_server_conf *conf =
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(cgi_server_conf *) ap_get_module_config(s->module_config, &cgi_module);
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conf->logbytes = atol(arg);
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return NULL;
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}
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static const char *set_scriptlog_buffer(cmd_parms *cmd, void *dummy,
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const char *arg)
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{
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server_rec *s = cmd->server;
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cgi_server_conf *conf =
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(cgi_server_conf *) ap_get_module_config(s->module_config, &cgi_module);
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conf->bufbytes = atoi(arg);
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return NULL;
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}
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static const command_rec cgi_cmds[] =
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{
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AP_INIT_TAKE1("ScriptLog", set_scriptlog, NULL, RSRC_CONF,
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"the name of a log for script debugging info"),
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AP_INIT_TAKE1("ScriptLogLength", set_scriptlog_length, NULL, RSRC_CONF,
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"the maximum length (in bytes) of the script debug log"),
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AP_INIT_TAKE1("ScriptLogBuffer", set_scriptlog_buffer, NULL, RSRC_CONF,
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"the maximum size (in bytes) to record of a POST request"),
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{NULL}
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};
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static int log_scripterror(request_rec *r, cgi_server_conf * conf, int ret,
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int show_errno, char *error)
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{
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apr_file_t *f = NULL;
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apr_finfo_t finfo;
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char time_str[APR_CTIME_LEN];
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ap_log_rerror(APLOG_MARK, show_errno|APLOG_ERR, errno, r,
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"%s: %s", error, r->filename);
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if (!conf->logname ||
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((apr_stat(&finfo, ap_server_root_relative(r->pool, conf->logname), r->pool) == APR_SUCCESS)
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&& (finfo.size > conf->logbytes)) ||
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(apr_open(&f, ap_server_root_relative(r->pool, conf->logname),
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APR_APPEND|APR_WRITE|APR_CREATE, APR_OS_DEFAULT, r->pool) != APR_SUCCESS)) {
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return ret;
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}
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/* "%% [Wed Jun 19 10:53:21 1996] GET /cgi-bin/printenv HTTP/1.0" */
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apr_ctime(time_str, apr_now());
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apr_fprintf(f, "%%%% [%s] %s %s%s%s %s\n", time_str, r->method, r->uri,
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r->args ? "?" : "", r->args ? r->args : "", r->protocol);
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/* "%% 500 /usr/local/apache/cgi-bin */
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apr_fprintf(f, "%%%% %d %s\n", ret, r->filename);
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apr_fprintf(f, "%%error\n%s\n", error);
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apr_close(f);
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return ret;
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}
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/* Soak up stderr from a script and redirect it to the error log.
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*/
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static void log_script_err(request_rec *r, apr_file_t *script_err)
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{
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char argsbuffer[HUGE_STRING_LEN];
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char *newline;
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while (apr_fgets(argsbuffer, HUGE_STRING_LEN, script_err) == 0) {
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newline = strchr(argsbuffer, '\n');
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if (newline) {
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*newline = '\0';
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}
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ap_log_rerror(APLOG_MARK, APLOG_ERR | APLOG_NOERRNO, 0, r,
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"%s", argsbuffer);
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}
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}
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static int log_script(request_rec *r, cgi_server_conf * conf, int ret,
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char *dbuf, const char *sbuf, apr_file_t *script_in,
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apr_file_t *script_err)
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{
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apr_array_header_t *hdrs_arr = apr_table_elts(r->headers_in);
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apr_table_entry_t *hdrs = (apr_table_entry_t *) hdrs_arr->elts;
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char argsbuffer[HUGE_STRING_LEN];
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apr_file_t *f = NULL;
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int i;
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apr_finfo_t finfo;
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char time_str[APR_CTIME_LEN];
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if (!conf->logname ||
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((apr_stat(&finfo, ap_server_root_relative(r->pool, conf->logname), r->pool) == APR_SUCCESS)
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&& (finfo.size > conf->logbytes)) ||
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(apr_open(&f, ap_server_root_relative(r->pool, conf->logname),
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APR_APPEND|APR_WRITE|APR_CREATE, APR_OS_DEFAULT, r->pool) != APR_SUCCESS)) {
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/* Soak up script output */
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while (apr_fgets(argsbuffer, HUGE_STRING_LEN, script_in) == 0)
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continue;
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log_script_err(r, script_err);
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return ret;
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}
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/* "%% [Wed Jun 19 10:53:21 1996] GET /cgi-bin/printenv HTTP/1.0" */
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apr_ctime(time_str, apr_now());
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apr_fprintf(f, "%%%% [%s] %s %s%s%s %s\n", time_str, r->method, r->uri,
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r->args ? "?" : "", r->args ? r->args : "", r->protocol);
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/* "%% 500 /usr/local/apache/cgi-bin" */
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apr_fprintf(f, "%%%% %d %s\n", ret, r->filename);
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apr_puts("%request\n", f);
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for (i = 0; i < hdrs_arr->nelts; ++i) {
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if (!hdrs[i].key)
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continue;
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apr_fprintf(f, "%s: %s\n", hdrs[i].key, hdrs[i].val);
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}
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if ((r->method_number == M_POST || r->method_number == M_PUT)
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&& *dbuf) {
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apr_fprintf(f, "\n%s\n", dbuf);
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}
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apr_puts("%response\n", f);
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hdrs_arr = apr_table_elts(r->err_headers_out);
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hdrs = (apr_table_entry_t *) hdrs_arr->elts;
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for (i = 0; i < hdrs_arr->nelts; ++i) {
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if (!hdrs[i].key)
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continue;
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apr_fprintf(f, "%s: %s\n", hdrs[i].key, hdrs[i].val);
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}
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if (sbuf && *sbuf)
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apr_fprintf(f, "%s\n", sbuf);
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if (apr_fgets(argsbuffer, HUGE_STRING_LEN, script_in) == 0) {
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apr_puts("%stdout\n", f);
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apr_puts(argsbuffer, f);
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while (apr_fgets(argsbuffer, HUGE_STRING_LEN, script_in) == 0)
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apr_puts(argsbuffer, f);
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apr_puts("\n", f);
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}
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if (apr_fgets(argsbuffer, HUGE_STRING_LEN, script_err) == 0) {
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apr_puts("%stderr\n", f);
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apr_puts(argsbuffer, f);
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while (apr_fgets(argsbuffer, HUGE_STRING_LEN, script_err) == 0)
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apr_puts(argsbuffer, f);
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apr_puts("\n", f);
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}
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apr_close(script_in);
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apr_close(script_err);
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apr_close(f);
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return ret;
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}
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static apr_status_t run_cgi_child(apr_file_t **script_out, apr_file_t **script_in, apr_file_t **script_err,
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char *command, char *const argv[], request_rec *r, apr_pool_t *p)
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{
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char **env;
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apr_procattr_t *procattr;
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apr_proc_t *procnew = apr_pcalloc(p, sizeof(*procnew));
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apr_status_t rc = APR_SUCCESS;
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#if defined(RLIMIT_CPU) || defined(RLIMIT_NPROC) || \
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defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined (RLIMIT_AS)
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core_dir_config *conf;
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conf = (core_dir_config *) ap_get_module_config(r->per_dir_config, &core_module);
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#endif
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#ifdef DEBUG_CGI
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#ifdef OS2
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/* Under OS/2 need to use device con. */
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FILE *dbg = fopen("con", "w");
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#else
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FILE *dbg = fopen("/dev/tty", "w");
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#endif
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int i;
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#endif
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RAISE_SIGSTOP(CGI_CHILD);
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#ifdef DEBUG_CGI
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fprintf(dbg, "Attempting to exec %s as %sCGI child (argv0 = %s)\n",
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r->filename, cld->nph ? "NPH " : "", argv0);
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#endif
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ap_add_cgi_vars(r);
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env = ap_create_environment(p, r->subprocess_env);
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#ifdef DEBUG_CGI
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fprintf(dbg, "Environment: \n");
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for (i = 0; env[i]; ++i)
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fprintf(dbg, "'%s'\n", env[i]);
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#endif
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/* Transmute ourselves into the script.
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* NB only ISINDEX scripts get decoded arguments.
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*/
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if (((rc = apr_createprocattr_init(&procattr, p)) != APR_SUCCESS) ||
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((rc = apr_setprocattr_io(procattr,
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APR_CHILD_BLOCK,
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APR_CHILD_BLOCK,
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APR_CHILD_BLOCK)) != APR_SUCCESS) ||
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((rc = apr_setprocattr_dir(procattr,
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ap_make_dirstr_parent(r->pool, r->filename))) != APR_SUCCESS) ||
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#ifdef RLIMIT_CPU
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((rc = apr_setprocattr_limit(procattr, APR_LIMIT_CPU, conf->limit_cpu)) != APR_SUCCESS) ||
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#endif
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#if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
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((rc = apr_setprocattr_limit(procattr, APR_LIMIT_MEM, conf->limit_mem)) != APR_SUCCESS) ||
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#endif
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#ifdef RLIMIT_NPROC
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((rc = apr_setprocattr_limit(procattr, APR_LIMIT_NPROC, conf->limit_nproc)) != APR_SUCCESS) ||
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#endif
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((rc = apr_setprocattr_cmdtype(procattr, APR_PROGRAM)) != APR_SUCCESS)) {
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/* Something bad happened, tell the world. */
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ap_log_rerror(APLOG_MARK, APLOG_ERR, rc, r,
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"couldn't set child process attributes: %s", r->filename);
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}
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else {
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rc = ap_os_create_privileged_process(r, procnew, command, argv, env, procattr, p);
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if (rc != APR_SUCCESS) {
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/* Bad things happened. Everyone should have cleaned up. */
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ap_log_rerror(APLOG_MARK, APLOG_ERR, rc, r,
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"couldn't create child process: %d: %s", rc, r->filename);
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}
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else {
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apr_note_subprocess(p, procnew, kill_after_timeout);
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*script_in = procnew->out;
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if (!script_in)
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return APR_EBADF;
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apr_set_pipe_timeout(*script_in,
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r->server->timeout * APR_USEC_PER_SEC);
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*script_out = procnew->in;
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if (!*script_out)
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return APR_EBADF;
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apr_set_pipe_timeout(*script_out,
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r->server->timeout * APR_USEC_PER_SEC);
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*script_err = procnew->err;
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if (!*script_err)
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return APR_EBADF;
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apr_set_pipe_timeout(*script_err,
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r->server->timeout * APR_USEC_PER_SEC);
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}
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}
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return (rc);
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}
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static apr_status_t build_argv_list(char ***argv, request_rec *r, apr_pool_t *p)
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{
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int numwords, x, idx;
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char *w;
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const char *args = r->args;
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if (!args || !args[0] || ap_strchr_c(args, '=')) {
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numwords = 1;
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}
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else {
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/* count the number of keywords */
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for (x = 0, numwords = 2; args[x]; x++) {
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if (args[x] == '+') {
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++numwords;
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}
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}
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}
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|
/* Everything is - 1 to account for the first parameter which is the
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* program name. We didn't used to have to do this, but APR wants it.
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*/
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if (numwords > APACHE_ARG_MAX - 1) {
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numwords = APACHE_ARG_MAX - 1; /* Truncate args to prevent overrun */
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}
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*argv = (char **) apr_palloc(p, (numwords + 2) * sizeof(char *));
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for (x = 1, idx = 1; x < numwords; x++) {
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w = ap_getword_nulls(p, &args, '+');
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ap_unescape_url(w);
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(*argv)[idx++] = ap_escape_shell_cmd(p, w);
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}
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(*argv)[idx] = NULL;
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return APR_SUCCESS;
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}
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static apr_status_t build_command_line(char **cmd, request_rec *r, apr_pool_t *p)
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{
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char *argv0;
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/* Allow suexec's "/" check to succeed */
|
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if ((argv0 = strrchr(r->filename, '/')) != NULL)
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argv0++;
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else
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argv0 = r->filename;
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#ifdef WIN32
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|
char *quoted_filename = NULL;
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char *interpreter = NULL;
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char *arguments = NULL;
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|
file_type_e fileType;
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*cmd = NULL;
|
|
fileType = ap_get_win32_interpreter(r, &interpreter, &arguments);
|
|
|
|
if (fileType == eFileTypeUNKNOWN) {
|
|
ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, r,
|
|
"%s is not executable; ensure interpreted scripts have "
|
|
"\"#!\" first line",
|
|
r->filename);
|
|
return APR_EBADF;
|
|
}
|
|
|
|
/*
|
|
* Build the command string to pass to ap_os_create_privileged_process()
|
|
*/
|
|
quoted_filename = apr_pstrcat(p, "\"", argv0, "\"", NULL);
|
|
if (interpreter && *interpreter) {
|
|
if (arguments && *arguments)
|
|
*cmd = apr_pstrcat(p, interpreter, " ", quoted_filename, " ",
|
|
arguments, NULL);
|
|
else
|
|
*cmd = apr_pstrcat(p, interpreter, " ", quoted_filename, " ", NULL);
|
|
}
|
|
else if (arguments && *arguments) {
|
|
*cmd = apr_pstrcat(p, quoted_filename, " ", arguments, NULL);
|
|
}
|
|
else {
|
|
*cmd = apr_pstrcat(p, quoted_filename, NULL);
|
|
}
|
|
#else
|
|
*cmd = argv0;
|
|
#endif
|
|
return APR_SUCCESS;
|
|
}
|
|
|
|
static int cgi_handler(request_rec *r)
|
|
{
|
|
int retval, nph, dbpos = 0;
|
|
char *argv0, *dbuf = NULL;
|
|
char *command;
|
|
char **argv = NULL;
|
|
|
|
apr_file_t *script_out = NULL, *script_in = NULL, *script_err = NULL;
|
|
ap_bucket_brigade *bb;
|
|
ap_bucket *b;
|
|
char argsbuffer[HUGE_STRING_LEN];
|
|
int is_included = !strcmp(r->protocol, "INCLUDED");
|
|
void *sconf = r->server->module_config;
|
|
apr_pool_t *p;
|
|
cgi_server_conf *conf =
|
|
(cgi_server_conf *) ap_get_module_config(sconf, &cgi_module);
|
|
|
|
p = r->main ? r->main->pool : r->pool;
|
|
|
|
if (r->method_number == M_OPTIONS) {
|
|
/* 99 out of 100 CGI scripts, this is all they support */
|
|
r->allowed |= (1 << M_GET);
|
|
r->allowed |= (1 << M_POST);
|
|
return DECLINED;
|
|
}
|
|
|
|
if ((argv0 = strrchr(r->filename, '/')) != NULL)
|
|
argv0++;
|
|
else
|
|
argv0 = r->filename;
|
|
|
|
nph = !(strncmp(argv0, "nph-", 4));
|
|
|
|
if (!(ap_allow_options(r) & OPT_EXECCGI) && !is_scriptaliased(r))
|
|
return log_scripterror(r, conf, HTTP_FORBIDDEN, APLOG_NOERRNO,
|
|
"Options ExecCGI is off in this directory");
|
|
if (nph && is_included)
|
|
return log_scripterror(r, conf, HTTP_FORBIDDEN, APLOG_NOERRNO,
|
|
"attempt to include NPH CGI script");
|
|
|
|
#if defined(OS2) || defined(WIN32)
|
|
/* XXX: This is wrong. As an option, perhaps, but not by default...
|
|
* we are back to the same argument that a url should be a unique
|
|
* entity until the sysadmin overrides that behavior.
|
|
* Allow for cgi files without the .EXE extension on them under OS/2
|
|
*/
|
|
if (r->finfo.protection == 0) {
|
|
apr_finfo_t finfo;
|
|
char *newfile;
|
|
|
|
newfile = apr_pstrcat(r->pool, r->filename, ".EXE", NULL);
|
|
if ((apr_stat(&finfo, newfile, r->pool) != APR_SUCCESS) ||
|
|
(finfo.filetype != APR_REG)) {
|
|
return log_scripterror(r, conf, HTTP_NOT_FOUND, 0,
|
|
"script not found or unable to stat");
|
|
} else {
|
|
r->filename = newfile;
|
|
}
|
|
}
|
|
#else
|
|
if (r->finfo.protection == 0)
|
|
return log_scripterror(r, conf, HTTP_NOT_FOUND, APLOG_NOERRNO,
|
|
"script not found or unable to stat");
|
|
#endif
|
|
if (r->finfo.filetype == APR_DIR)
|
|
return log_scripterror(r, conf, HTTP_FORBIDDEN, APLOG_NOERRNO,
|
|
"attempt to invoke directory as script");
|
|
|
|
/*
|
|
if (!ap_suexec_enabled) {
|
|
if (!ap_can_exec(&r->finfo))
|
|
return log_scripterror(r, conf, HTTP_FORBIDDEN, APLOG_NOERRNO,
|
|
"file permissions deny server execution");
|
|
}
|
|
|
|
*/
|
|
if ((retval = ap_setup_client_block(r, REQUEST_CHUNKED_ERROR)))
|
|
return retval;
|
|
|
|
ap_add_common_vars(r);
|
|
|
|
/* build the command line */
|
|
if (build_command_line(&command, r, p) != APR_SUCCESS) {
|
|
ap_log_rerror(APLOG_MARK, APLOG_ERR, errno, r,
|
|
"couldn't spawn child process: %s", r->filename);
|
|
return HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
/* build the argument list */
|
|
else if (build_argv_list(&argv, r, p) != APR_SUCCESS) {
|
|
ap_log_rerror(APLOG_MARK, APLOG_ERR, errno, r,
|
|
"couldn't spawn child process: %s", r->filename);
|
|
return HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
argv[0] = apr_pstrdup(p, command);
|
|
/* run the script in its own process */
|
|
if (run_cgi_child(&script_out, &script_in, &script_err, command, argv, r, p) != APR_SUCCESS) {
|
|
ap_log_rerror(APLOG_MARK, APLOG_ERR, errno, r,
|
|
"couldn't spawn child process: %s", r->filename);
|
|
return HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
/* Transfer any put/post args, CERN style...
|
|
* Note that we already ignore SIGPIPE in the core server.
|
|
*/
|
|
if (ap_should_client_block(r)) {
|
|
int dbsize, len_read;
|
|
apr_ssize_t bytes_written, bytes_to_write;
|
|
apr_status_t rv;
|
|
|
|
if (conf->logname) {
|
|
dbuf = apr_pcalloc(r->pool, conf->bufbytes + 1);
|
|
dbpos = 0;
|
|
}
|
|
|
|
while ((len_read =
|
|
ap_get_client_block(r, argsbuffer, HUGE_STRING_LEN)) > 0) {
|
|
if (conf->logname) {
|
|
if ((dbpos + len_read) > conf->bufbytes) {
|
|
dbsize = conf->bufbytes - dbpos;
|
|
}
|
|
else {
|
|
dbsize = len_read;
|
|
}
|
|
memcpy(dbuf + dbpos, argsbuffer, dbsize);
|
|
dbpos += dbsize;
|
|
}
|
|
/* Keep writing data to the child until done or too much time
|
|
* elapses with no progress or an error occurs.
|
|
*/
|
|
bytes_written = 0;
|
|
do {
|
|
bytes_to_write = len_read - bytes_written;
|
|
rv = apr_write(script_out, argsbuffer + bytes_written,
|
|
&bytes_to_write);
|
|
bytes_written += bytes_to_write;
|
|
} while (rv == APR_SUCCESS && bytes_written < len_read);
|
|
if (rv != APR_SUCCESS || bytes_written < len_read) {
|
|
/* silly script stopped reading, soak up remaining message */
|
|
while (ap_get_client_block(r, argsbuffer, HUGE_STRING_LEN) > 0) {
|
|
/* dump it */
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
apr_flush(script_out);
|
|
}
|
|
|
|
apr_close(script_out);
|
|
|
|
/* Handle script return... */
|
|
if (script_in && !nph) {
|
|
const char *location;
|
|
char sbuf[MAX_STRING_LEN];
|
|
int ret;
|
|
|
|
if ((ret = ap_scan_script_header_err(r, script_in, sbuf))) {
|
|
return log_script(r, conf, ret, dbuf, sbuf, script_in, script_err);
|
|
}
|
|
|
|
location = apr_table_get(r->headers_out, "Location");
|
|
|
|
if (location && location[0] == '/' && r->status == 200) {
|
|
|
|
/* Soak up all the script output */
|
|
while (apr_fgets(argsbuffer, HUGE_STRING_LEN, script_in) == 0) {
|
|
continue;
|
|
}
|
|
log_script_err(r, script_err);
|
|
/* This redirect needs to be a GET no matter what the original
|
|
* method was.
|
|
*/
|
|
r->method = apr_pstrdup(r->pool, "GET");
|
|
r->method_number = M_GET;
|
|
|
|
/* We already read the message body (if any), so don't allow
|
|
* the redirected request to think it has one. We can ignore
|
|
* Transfer-Encoding, since we used REQUEST_CHUNKED_ERROR.
|
|
*/
|
|
apr_table_unset(r->headers_in, "Content-Length");
|
|
|
|
ap_internal_redirect_handler(location, r);
|
|
return OK;
|
|
}
|
|
else if (location && r->status == 200) {
|
|
/* XX Note that if a script wants to produce its own Redirect
|
|
* body, it now has to explicitly *say* "Status: 302"
|
|
*/
|
|
return HTTP_MOVED_TEMPORARILY;
|
|
}
|
|
|
|
ap_send_http_header(r);
|
|
if (!r->header_only) {
|
|
bb = ap_brigade_create(r->pool);
|
|
b = ap_bucket_create_pipe(script_in);
|
|
AP_BRIGADE_INSERT_TAIL(bb, b);
|
|
b = ap_bucket_create_eos();
|
|
AP_BRIGADE_INSERT_TAIL(bb, b);
|
|
ap_pass_brigade(r->output_filters, bb);
|
|
}
|
|
|
|
log_script_err(r, script_err);
|
|
apr_close(script_err);
|
|
}
|
|
|
|
if (script_in && nph) {
|
|
bb = ap_brigade_create(r->pool);
|
|
b = ap_bucket_create_pipe(script_in);
|
|
AP_BRIGADE_INSERT_TAIL(bb, b);
|
|
b = ap_bucket_create_eos();
|
|
AP_BRIGADE_INSERT_TAIL(bb, b);
|
|
ap_pass_brigade(r->output_filters, bb);
|
|
}
|
|
|
|
return OK; /* NOT r->status, even if it has changed. */
|
|
}
|
|
|
|
static const handler_rec cgi_handlers[] =
|
|
{
|
|
{CGI_MAGIC_TYPE, cgi_handler},
|
|
{"cgi-script", cgi_handler},
|
|
{NULL}
|
|
};
|
|
|
|
module AP_MODULE_DECLARE_DATA cgi_module =
|
|
{
|
|
STANDARD20_MODULE_STUFF,
|
|
NULL, /* dir config creater */
|
|
NULL, /* dir merger --- default is to override */
|
|
create_cgi_config, /* server config */
|
|
merge_cgi_config, /* merge server config */
|
|
cgi_cmds, /* command apr_table_t */
|
|
cgi_handlers, /* handlers */
|
|
NULL /* register hooks */
|
|
};
|