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- /* ====================================================================
- * Copyright (c) 1995-1999 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.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
- /*
- * mod_actions.c: executes scripts based on MIME type or HTTP method
- *
- * by Alexei Kosut; based on mod_cgi.c, mod_mime.c and mod_includes.c,
- * adapted by rst from original NCSA code by Rob McCool
- *
- * Usage instructions:
- *
- * Action mime/type /cgi-bin/script
- *
- * will activate /cgi-bin/script when a file of content type mime/type is
- * requested. It sends the URL and file path of the requested document using
- * the standard CGI PATH_INFO and PATH_TRANSLATED environment variables.
- *
- * Script PUT /cgi-bin/script
- *
- * will activate /cgi-bin/script when a request is received with the
- * HTTP method "PUT". The available method names are defined in httpd.h.
- * If the method is GET, the script will only be activated if the requested
- * URI includes query information (stuff after a ?-mark).
- */
-
- #include "httpd.h"
- #include "http_config.h"
- #include "http_request.h"
- #include "http_core.h"
- #include "http_protocol.h"
- #include "http_main.h"
- #include "http_log.h"
- #include "util_script.h"
-
- typedef struct {
- table *action_types; /* Added with Action... */
- char *scripted[METHODS]; /* Added with Script... */
- } action_dir_config;
-
- module action_module;
-
- static void *create_action_dir_config(pool *p, char *dummy)
- {
- action_dir_config *new =
- (action_dir_config *) ap_palloc(p, sizeof(action_dir_config));
-
- new->action_types = ap_make_table(p, 4);
- memset(new->scripted, 0, sizeof(new->scripted));
-
- return new;
- }
-
- static void *merge_action_dir_configs(pool *p, void *basev, void *addv)
- {
- action_dir_config *base = (action_dir_config *) basev;
- action_dir_config *add = (action_dir_config *) addv;
- action_dir_config *new = (action_dir_config *) ap_palloc(p,
- sizeof(action_dir_config));
- int i;
-
- new->action_types = ap_overlay_tables(p, add->action_types,
- base->action_types);
-
- for (i = 0; i < METHODS; ++i) {
- new->scripted[i] = add->scripted[i] ? add->scripted[i]
- : base->scripted[i];
- }
- return new;
- }
-
- static const char *add_action(cmd_parms *cmd, action_dir_config * m, char *type,
- char *script)
- {
- ap_table_setn(m->action_types, type, script);
- return NULL;
- }
-
- static const char *set_script(cmd_parms *cmd, action_dir_config * m,
- char *method, char *script)
- {
- int methnum;
-
- methnum = ap_method_number_of(method);
- if (methnum == M_TRACE)
- return "TRACE not allowed for Script";
- else if (methnum == M_INVALID)
- return "Unknown method type for Script";
- else
- m->scripted[methnum] = script;
-
- return NULL;
- }
-
- static const command_rec action_cmds[] =
- {
- {"Action", add_action, NULL, OR_FILEINFO, TAKE2,
- "a media type followed by a script name"},
- {"Script", set_script, NULL, ACCESS_CONF | RSRC_CONF, TAKE2,
- "a method followed by a script name"},
- {NULL}
- };
-
- static int action_handler(request_rec *r)
- {
- action_dir_config *conf = (action_dir_config *)
- ap_get_module_config(r->per_dir_config, &action_module);
- const char *t, *action = r->handler ? r->handler : r->content_type;
- const char *script;
- int i;
-
- /* Set allowed stuff */
- for (i = 0; i < METHODS; ++i) {
- if (conf->scripted[i])
- r->allowed |= (1 << i);
- }
-
- /* First, check for the method-handling scripts */
- if (r->method_number == M_GET) {
- if (r->args)
- script = conf->scripted[M_GET];
- else
- script = NULL;
- }
- else {
- script = conf->scripted[r->method_number];
- }
-
- /* Check for looping, which can happen if the CGI script isn't */
- if (script && r->prev && r->prev->prev)
- return DECLINED;
-
- /* Second, check for actions (which override the method scripts) */
- if ((t = ap_table_get(conf->action_types,
- action ? action : ap_default_type(r)))) {
- script = t;
- if (r->finfo.st_mode == 0) {
- ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r,
- "File does not exist: %s", r->filename);
- return NOT_FOUND;
- }
- }
-
- if (script == NULL)
- return DECLINED;
-
- ap_internal_redirect_handler(ap_pstrcat(r->pool, script, ap_escape_uri(r->pool,
- r->uri), r->args ? "?" : NULL, r->args, NULL), r);
- return OK;
- }
-
- static const handler_rec action_handlers[] =
- {
- {"*/*", action_handler},
- {NULL}
- };
-
- module action_module =
- {
- STANDARD_MODULE_STUFF,
- NULL, /* initializer */
- create_action_dir_config, /* dir config creater */
- merge_action_dir_configs, /* dir merger --- default is to override */
- NULL, /* server config */
- NULL, /* merge server config */
- action_cmds, /* command table */
- action_handlers, /* handlers */
- NULL, /* filename translation */
- NULL, /* check_user_id */
- NULL, /* check auth */
- NULL, /* check access */
- NULL, /* type_checker */
- NULL, /* fixups */
- NULL, /* logger */
- NULL, /* header parser */
- NULL, /* child_init */
- NULL, /* child_exit */
- NULL /* post read-request */
- };
-