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tor-android/external/privoxy/cgisimple.c

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privoxy 3.0.12 clean checkin
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const char cgisimple_rcs[] = "$Id: cgisimple.c,v 1.91 2009/03/08 14:19:23 fabiankeil Exp $";
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/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/cgisimple.c,v $
*
* Purpose : Simple CGIs to get information about Privoxy's
* status.
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*
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* Functions declared include:
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*
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*
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* Copyright : Written by and Copyright (C) 2001-2008 the SourceForge
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* Privoxy team. http://www.privoxy.org/
*
* Based on the Internet Junkbuster originally written
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* by and Copyright (C) 1997 Anonymous Coders and
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* Junkbusters Corporation. http://www.junkbusters.com
*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* The GNU General Public License should be included with
* this file. If not, you can view it at
* http://www.gnu.org/copyleft/gpl.html
* or write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
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* Revisions :
* $Log: cgisimple.c,v $
* Revision 1.91 2009/03/08 14:19:23 fabiankeil
* Fix justified (but harmless) compiler warnings
* on platforms where sizeof(int) < sizeof(long).
*
* Revision 1.90 2009/03/01 18:43:09 fabiankeil
* Fix cparser warnings.
*
* Revision 1.89 2008/10/11 11:31:14 fabiankeil
* Add FEATURE_CONNECTION_KEEP_ALIVE to the list
* of conditional defines on the show-status page.
*
* Revision 1.88 2008/08/30 12:03:07 fabiankeil
* Remove FEATURE_COOKIE_JAR.
*
* Revision 1.87 2008/08/29 15:59:22 fabiankeil
* Fix two comments.
*
* Revision 1.86 2008/06/28 14:19:05 fabiankeil
* Protocol detection is done case-insensitive, fix assertion
* to do the same. Yay for Privoxy-Regression-Test and zzuf.
*
* Revision 1.85 2008/05/26 17:30:55 fabiankeil
* Provide an OpenSearch Description to access the
* show-url-info page through "search engine plugins".
*
* Revision 1.84 2008/05/26 16:16:55 fabiankeil
* Spell error correctly.
*
* Revision 1.83 2008/05/12 14:51:30 fabiankeil
* Don't complain about an invalid URL if show-url-info is requested
* without parameters. Regression introduced in 1.81 by yours truly.
*
* Revision 1.82 2008/05/10 20:01:47 fabiankeil
* Fix an assertion that could erroneously
* trigger in case of memory shortage.
*
* Revision 1.81 2008/05/05 09:54:39 fabiankeil
* In cgi_show_url_info(), make sure ftp URLs are
* declared invalid. Also simplify the code that adds
* "http://" if no protocol has been specified.
*
* Revision 1.80 2008/05/04 16:18:32 fabiankeil
* Provide parse_http_url() with a third parameter to specify
* whether or not URLs without protocol are acceptable.
*
* Revision 1.79 2008/05/04 13:30:56 fabiankeil
* Streamline parse_http_url()'s prototype.
*
* Revision 1.78 2008/05/03 16:50:11 fabiankeil
* Leverage content_filters_enabled() in cgi_show_url_info().
*
* Revision 1.77 2008/05/02 09:47:48 fabiankeil
* In cgi_show_url_info, pass an initialized http structure
* to parse_http_url() as that will be required soonish and
* assert that https URLs are recognized correctly.
*
* Revision 1.76 2008/04/28 09:13:30 fabiankeil
* In load_file(), remember the error reason and fclose()
* and return later on instead of right away.
*
* Revision 1.75 2008/04/27 13:52:52 fabiankeil
* Move CGI file loading code into load_file() and
* add checks for unexpected errors.
*
* Revision 1.74 2008/04/26 15:50:56 fabiankeil
* Fix macro name in cgi_show_file() error path.
*
* Revision 1.73 2008/04/26 12:21:55 fabiankeil
* Forget about JB_ERR_PARSE. JB_ERR_CGI_PARAMS to the rescue.
*
* Revision 1.72 2008/04/26 10:34:15 fabiankeil
* If zlib support is unavailable and there are content filters active
* but the prevent-compression action is disabled, include a warning
* on the show-url-info page that compression might prevent filtering.
*
* Revision 1.71 2008/04/25 13:33:56 fabiankeil
* - Factor cgi_show_file() out of cgi_show_status().
* - Adjust cgi_show_status()'s parameter description to match reality.
*
* Revision 1.70 2008/04/24 16:12:38 fabiankeil
* In cgi_show_status(), load the requested file at once.
* Using string_join() for every line really doesn't scale.
*
* Revision 1.69 2008/04/17 14:40:48 fabiankeil
* Provide get_http_time() with the buffer size so it doesn't
* have to blindly assume that the buffer is big enough.
*
* Revision 1.68 2008/03/27 18:27:21 fabiankeil
* Remove kill-popups action.
*
* Revision 1.67 2008/03/27 17:00:05 fabiankeil
* Turn the favicon blobs into locals.
*
* Revision 1.66 2008/02/23 16:57:12 fabiankeil
* Rename url_actions() to get_url_actions() and let it
* use the standard parameter ordering.
*
* Revision 1.65 2008/02/23 16:33:43 fabiankeil
* Let forward_url() use the standard parameter ordering
* and mark its second parameter immutable.
*
* Revision 1.64 2008/02/03 13:56:07 fabiankeil
* Add SOCKS5 support for show-url-info CGI page.
*
* Revision 1.63 2008/02/01 06:04:31 fabiankeil
* If edit buttons on the show-url-info CGI page are hidden, explain why.
*
* Revision 1.62 2008/02/01 05:52:40 fabiankeil
* Hide edit buttons on the show-url-info CGI page if enable-edit-action
* is disabled. Patch by Lee with additional white space adjustments.
*
* Revision 1.61 2008/01/26 11:13:25 fabiankeil
* If enable-edit-actions is disabled, hide the edit buttons and explain why.
*
* Revision 1.60 2007/10/27 13:12:13 fabiankeil
* Finish 1.49 and check write access before
* showing edit buttons on show-url-info page.
*
* Revision 1.59 2007/10/19 16:42:36 fabiankeil
* Plug memory leak I introduced five months ago.
* Yay Valgrind and Privoxy-Regression-Test.
*
* Revision 1.58 2007/07/21 12:19:50 fabiankeil
* If show-url-info is called with an URL that Privoxy
* would reject as invalid, don't show unresolved forwarding
* variables, "final matches" or claim the site's secure.
*
* Revision 1.57 2007/06/01 16:53:05 fabiankeil
* Adjust cgi_show_url_info() to show what forward-override{}
* would do with the requested URL (instead of showing how the
* request for the CGI page would be forwarded if it wasn't a
* CGI request).
*
* Revision 1.56 2007/05/21 10:50:35 fabiankeil
* - Use strlcpy() instead of strcpy().
* - Stop treating actions files special. Expect a complete file name
* (with or without path) like it's done for the rest of the files.
* Closes FR#588084.
* - Don't rerun sed() in cgi_show_request().
*
* Revision 1.55 2007/04/13 13:36:46 fabiankeil
* Reference action files in CGI URLs by id instead
* of using the first part of the file name.
* Fixes BR 1694250 and BR 1590556.
*
* Revision 1.54 2007/04/09 18:11:35 fabiankeil
* Don't mistake VC++'s _snprintf() for a snprintf() replacement.
*
* Revision 1.53 2007/04/08 13:21:04 fabiankeil
* Reference action files in CGI URLs by id instead
* of using the first part of the file name.
* Fixes BR 1694250 and BR 1590556.
*
* Revision 1.52 2007/02/13 15:10:26 fabiankeil
* Apparently fopen()ing in "binary" mode doesn't require
* #ifdefs, it's already done without them in cgiedit.c.
*
* Revision 1.51 2007/02/10 16:55:22 fabiankeil
* - Show forwarding settings on the show-url-info page
* - Fix some HTML syntax errors.
*
* Revision 1.50 2007/01/23 15:51:17 fabiankeil
* Add favicon delivery functions.
*
* Revision 1.49 2007/01/20 16:29:38 fabiankeil
* Suppress edit buttons for action files if Privoxy has
* no write access. Suggested by Roland in PR 1564026.
*
* Revision 1.48 2007/01/20 15:31:31 fabiankeil
* Display warning if show-url-info CGI page
* is used while Privoxy is toggled off.
*
* Revision 1.47 2007/01/12 15:07:10 fabiankeil
* Use zalloc in cgi_send_user_manual.
*
* Revision 1.46 2007/01/02 12:49:46 fabiankeil
* Add FEATURE_ZLIB to the list of conditional
* defines at the show-status page.
*
* Revision 1.45 2006/12/28 18:16:41 fabiankeil
* Fixed gcc43 compiler warnings, zero out cgi_send_user_manual's
* body memory before using it, replaced sprintf calls with snprintf.
*
* Revision 1.44 2006/12/22 14:19:27 fabiankeil
* Removed checks whether or not AF_FILES have
* data structures associated with them in cgi_show_status.
* It doesn't matter as we're only interested in the file names.
*
* For the action files the checks were always true,
* but they prevented empty filter files from being
* listed. Fixes parts of BR 1619208.
*
* Revision 1.43 2006/12/17 17:57:56 fabiankeil
* - Added FEATURE_GRACEFUL_TERMINATION to the
* "conditional #defines" section
* - Escaped ampersands in generated HTML.
* - Renamed re-filter-filename to re-filter-filenames
*
* Revision 1.42 2006/11/21 15:43:12 fabiankeil
* Add special treatment for WIN32 to make sure
* cgi_send_user_manual opens the files in binary mode.
* Fixes BR 1600411 and unbreaks image delivery.
*
* Remove outdated comment.
*
* Revision 1.41 2006/10/09 19:18:28 roro
* Redirect http://p.p/user-manual (without trailing slash) to
* http://p.p/user-manual/ (with trailing slash), otherwise links will be broken.
*
* Revision 1.40 2006/09/09 13:05:33 fabiankeil
* Modified cgi_send_user_manual to serve binary
* content without destroying it first. Should also be
* faster now. Added ".jpg" check for Content-Type guessing.
*
* Revision 1.39 2006/09/08 09:49:23 fabiankeil
* Deliver documents in the user-manual directory
* with "Content-Type text/css" if their filename
* ends with ".css".
*
* Revision 1.38 2006/09/06 18:45:03 fabiankeil
* Incorporate modified version of Roland Rosenfeld's patch to
* optionally access the user-manual via Privoxy. Closes patch 679075.
*
* Formatting changed to Privoxy style, added call to
* cgi_error_no_template if the requested file doesn't
* exist and modified check whether or not Privoxy itself
* should serve the manual. Should work cross-platform now.
*
* Revision 1.37 2006/07/18 14:48:45 david__schmidt
* Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch)
* with what was really the latest development (the v_3_0_branch branch)
*
* Revision 1.35.2.7 2006/01/29 23:10:56 david__schmidt
* Multiple filter file support
*
* Revision 1.35.2.6 2005/07/04 03:13:43 david__schmidt
* Undo some damaging memory leak patches
*
* Revision 1.35.2.5 2005/05/07 21:50:55 david__schmidt
* A few memory leaks plugged (mostly on error paths)
*
* Revision 1.35.2.4 2005/04/04 02:21:24 david__schmidt
* Another instance of:
* Don't show "Edit" buttons #ifndef FEATURE_CGI_EDIT_ACTIONS
* Thanks to Magnus Holmgren for the patch
*
* Revision 1.35.2.3 2003/12/17 16:34:15 oes
* - Prevent line wrap beween "View/Edit" link buttons on status page
* - Some (mostly irrelevant) fixes for Out-of-mem-case handling
*
* Revision 1.35.2.2 2003/04/03 13:48:28 oes
* Don't show "Edit" buttons #ifndef FEATURE_CGI_EDIT_ACTIONS
*
* Revision 1.35.2.1 2002/07/04 15:02:38 oes
* Added ability to send redirects to send-banner CGI, so that it can completely mimic the image blocking action if called with type=auto
*
* Revision 1.35.2.1 2002/07/01 17:32:04 morcego
* Applying patch from Andreas as provided by Hal on the list.
* Message-ID: <20020701121218.V1606@feenix.burgiss.net>
*
* Revision 1.35 2002/05/12 21:44:44 jongfoster
* Adding amiga.[ch] revision information, if on an amiga.
*
* Revision 1.34 2002/04/30 12:06:12 oes
* Deleted unused code from default_cgi
*
* Revision 1.33 2002/04/30 11:14:52 oes
* Made csp the first parameter in *action_to_html
*
* Revision 1.32 2002/04/26 18:29:13 jongfoster
* Fixing this Visual C++ warning:
* cgisimple.c(775) : warning C4018: '<' : signed/unsigned mismatch
*
* Revision 1.31 2002/04/26 12:54:36 oes
* - Kill obsolete REDIRECT_URL code
* - Error handling fixes
* - Style sheet related HTML snipplet changes
* - cgi_show_url_info:
* - Matches now in table, actions on single lines,
* linked to help
* - standard.action suppressed
* - Buttons to View and Edit AFs
*
* Revision 1.30 2002/04/24 02:18:08 oes
* - show-status is now the starting point for editing
* the actions files, generate list of all AFs with buttons
* for viewing and editing, new look for file list (Jon:
* buttons now aligned ;-P ), view mode now supports multiple
* AFs, name changes, no view links for unspecified files,
* no edit link for standard.action.
*
* - Jon's multiple AF patch: cgi_show_url_info now uses all
* AFs and marks the output accordingly
*
* Revision 1.29 2002/04/10 13:38:35 oes
* load_template signature changed
*
* Revision 1.28 2002/04/07 15:42:12 jongfoster
* Fixing send-banner?type=auto when the image-blocker is
* a redirect to send-banner
*
* Revision 1.27 2002/04/05 15:50:48 oes
* added send-stylesheet CGI
*
* Revision 1.26 2002/04/04 00:36:36 gliptak
* always use pcre for matching
*
* Revision 1.25 2002/04/03 22:28:03 gliptak
* Removed references to gnu_regex
*
* Revision 1.24 2002/04/02 16:12:47 oes
* Fix: moving misplaced lines into #ifdef FEATURE_FORCE
*
* Revision 1.23 2002/03/26 22:29:54 swa
* we have a new homepage!
*
* Revision 1.22 2002/03/24 16:18:15 jongfoster
* Removing old logo
*
* Revision 1.21 2002/03/24 15:23:33 jongfoster
* Name changes
*
* Revision 1.20 2002/03/24 13:25:43 swa
* name change related issues
*
* Revision 1.19 2002/03/16 23:54:06 jongfoster
* Adding graceful termination feature, to help look for memory leaks.
* If you enable this (which, by design, has to be done by hand
* editing config.h) and then go to http://i.j.b/die, then the program
* will exit cleanly after the *next* request. It should free all the
* memory that was used.
*
* Revision 1.18 2002/03/12 01:44:49 oes
* Changed default for "blocked" image from jb logo to checkboard pattern
*
* Revision 1.17 2002/03/08 16:43:18 oes
* Added choice beween GIF and PNG built-in images
*
* Revision 1.16 2002/03/07 03:48:38 oes
* - Changed built-in images from GIF to PNG
* (with regard to Unisys patent issue)
* - Added a 4x4 pattern PNG which is less intrusive
* than the logo but also clearly marks the deleted banners
*
* Revision 1.15 2002/03/06 22:54:35 jongfoster
* Automated function-comment nitpicking.
*
* Revision 1.14 2002/03/02 04:14:50 david__schmidt
* Clean up a little CRLF unpleasantness that suddenly appeared
*
* Revision 1.13 2002/02/21 00:10:37 jongfoster
* Adding send-banner?type=auto option
*
* Revision 1.12 2002/01/23 01:03:32 jongfoster
* Fixing gcc [CygWin] compiler warnings
*
* Revision 1.11 2002/01/23 00:01:04 jongfoster
* Adding cgi_transparent_gif() for http://i.j.b/t
* Adding missing html_encode() to many CGI functions.
* Adding urlmatch.[ch] to http://i.j.b/show-version
*
* Revision 1.10 2002/01/17 21:10:37 jongfoster
* Changes to cgi_show_url_info to use new matching code from urlmatch.c.
* Also fixing a problem in the same function with improperly quoted URLs
* in output HTML, and adding code to handle https:// URLs correctly.
*
* Revision 1.9 2001/11/30 23:09:15 jongfoster
* Now reports on FEATURE_CGI_EDIT_ACTIONS
* Removing FEATURE_DENY_GZIP from template
*
* Revision 1.8 2001/11/13 00:14:07 jongfoster
* Fixing stupid bug now I've figured out what || means.
* (It always returns 0 or 1, not one of it's paramaters.)
*
* Revision 1.7 2001/10/23 21:48:19 jongfoster
* Cleaning up error handling in CGI functions - they now send back
* a HTML error page and should never cause a FATAL error. (Fixes one
* potential source of "denial of service" attacks).
*
* CGI actions file editor that works and is actually useful.
*
* Ability to toggle JunkBuster remotely using a CGI call.
*
* You can turn off both the above features in the main configuration
* file, e.g. if you are running a multi-user proxy.
*
* Revision 1.6 2001/10/14 22:00:32 jongfoster
* Adding support for a 404 error when an invalid CGI page is requested.
*
* Revision 1.5 2001/10/07 15:30:41 oes
* Removed FEATURE_DENY_GZIP
*
* Revision 1.4 2001/10/02 15:31:12 oes
* Introduced show-request cgi
*
* Revision 1.3 2001/09/22 16:34:44 jongfoster
* Removing unneeded #includes
*
* Revision 1.2 2001/09/19 18:01:11 oes
* Fixed comments; cosmetics
*
* Revision 1.1 2001/09/16 17:08:54 jongfoster
* Moving simple CGI functions from cgi.c to new file cgisimple.c
*
*
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**********************************************************************/
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#include "config.h"
#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <assert.h>
#ifdef HAVE_ACCESS
#include <unistd.h>
#endif /* def HAVE_ACCESS */
#include "project.h"
#include "cgi.h"
#include "cgisimple.h"
#include "list.h"
#include "encode.h"
#include "jcc.h"
#include "filters.h"
#include "actions.h"
#include "miscutil.h"
#include "loadcfg.h"
#include "parsers.h"
#include "urlmatch.h"
#include "errlog.h"
const char cgisimple_h_rcs[] = CGISIMPLE_H_VERSION;
static char *show_rcs(void);
static jb_err show_defines(struct map *exports);
static jb_err cgi_show_file(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters);
static jb_err load_file(const char *filename, char **buffer, size_t *length);
/*********************************************************************
*
* Function : cgi_default
*
* Description : CGI function that is called for the CGI_SITE_1_HOST
* and CGI_SITE_2_HOST/CGI_SITE_2_PATH base URLs.
* Boring - only exports the default exports.
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*
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* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : none
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
*
*********************************************************************/
jb_err cgi_default(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
struct map *exports;
(void)parameters;
assert(csp);
assert(rsp);
if (NULL == (exports = default_exports(csp, "")))
{
return JB_ERR_MEMORY;
}
return template_fill_for_cgi(csp, "default", exports, rsp);
}
/*********************************************************************
*
* Function : cgi_error_404
*
* Description : CGI function that is called if an unknown action was
* given.
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*
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* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : none
*
* Returns : JB_ERR_OK on success
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* JB_ERR_MEMORY on out-of-memory error.
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*
*********************************************************************/
jb_err cgi_error_404(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
struct map *exports;
assert(csp);
assert(rsp);
assert(parameters);
if (NULL == (exports = default_exports(csp, NULL)))
{
return JB_ERR_MEMORY;
}
rsp->status = strdup("404 Privoxy configuration page not found");
if (rsp->status == NULL)
{
free_map(exports);
return JB_ERR_MEMORY;
}
return template_fill_for_cgi(csp, "cgi-error-404", exports, rsp);
}
#ifdef FEATURE_GRACEFUL_TERMINATION
/*********************************************************************
*
* Function : cgi_die
*
* Description : CGI function to shut down Privoxy.
* NOTE: Turning this on in a production build
* would be a BAD idea. An EXTREMELY BAD idea.
* In short, don't do it.
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*
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* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : none
*
* Returns : JB_ERR_OK on success
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* JB_ERR_MEMORY on out-of-memory error.
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*
*********************************************************************/
jb_err cgi_die (struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
assert(csp);
assert(rsp);
assert(parameters);
/* quit */
g_terminate = 1;
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/*
* I don't really care what gets sent back to the browser.
* Take the easy option - "out of memory" page.
*/
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return JB_ERR_MEMORY;
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}
#endif /* def FEATURE_GRACEFUL_TERMINATION */
/*********************************************************************
*
* Function : cgi_show_request
*
* Description : Show the client's request and what sed() would have
* made of it.
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*
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* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : none
*
* Returns : JB_ERR_OK on success
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* JB_ERR_MEMORY on out-of-memory error.
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*
*********************************************************************/
jb_err cgi_show_request(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
char *p;
struct map *exports;
assert(csp);
assert(rsp);
assert(parameters);
if (NULL == (exports = default_exports(csp, "show-request")))
{
return JB_ERR_MEMORY;
}
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/*
* Repair the damage done to the IOB by get_header()
*/
for (p = csp->iob->buf; p < csp->iob->eod; p++)
{
if (*p == '\0') *p = '\n';
}
/*
* Export the original client's request and the one we would
* be sending to the server if this wasn't a CGI call
*/
if (map(exports, "client-request", 1, html_encode(csp->iob->buf), 0))
{
free_map(exports);
return JB_ERR_MEMORY;
}
if (map(exports, "processed-request", 1,
html_encode_and_free_original(list_to_text(csp->headers)), 0))
{
free_map(exports);
return JB_ERR_MEMORY;
}
return template_fill_for_cgi(csp, "show-request", exports, rsp);
}
/*********************************************************************
*
* Function : cgi_send_banner
*
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* Description : CGI function that returns a banner.
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*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* type : Selects the type of banner between "trans", "logo",
* and "auto". Defaults to "logo" if absent or invalid.
* "auto" means to select as if we were image-blocking.
* (Only the first character really counts; b and t are
* equivalent).
*
* Returns : JB_ERR_OK on success
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*
*********************************************************************/
jb_err cgi_send_banner(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
char imagetype = lookup(parameters, "type")[0];
/*
* If type is auto, then determine the right thing
* to do from the set-image-blocker action
*/
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if (imagetype == 'a')
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{
/*
* Default to pattern
*/
imagetype = 'p';
#ifdef FEATURE_IMAGE_BLOCKING
if ((csp->action->flags & ACTION_IMAGE_BLOCKER) != 0)
{
static const char prefix1[] = CGI_PREFIX "send-banner?type=";
static const char prefix2[] = "http://" CGI_SITE_1_HOST "/send-banner?type=";
const char *p = csp->action->string[ACTION_STRING_IMAGE_BLOCKER];
if (p == NULL)
{
/* Use default - nothing to do here. */
}
else if (0 == strcmpic(p, "blank"))
{
imagetype = 'b';
}
else if (0 == strcmpic(p, "pattern"))
{
imagetype = 'p';
}
/*
* If the action is to call this CGI, determine
* the argument:
*/
else if (0 == strncmpic(p, prefix1, sizeof(prefix1) - 1))
{
imagetype = p[sizeof(prefix1) - 1];
}
else if (0 == strncmpic(p, prefix2, sizeof(prefix2) - 1))
{
imagetype = p[sizeof(prefix2) - 1];
}
/*
* Everything else must (should) be a URL to
* redirect to.
*/
else
{
imagetype = 'r';
}
}
#endif /* def FEATURE_IMAGE_BLOCKING */
}
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/*
* Now imagetype is either the non-auto type we were called with,
* or it was auto and has since been determined. In any case, we
* can proceed to actually answering the request by sending a redirect
* or an image as appropriate:
*/
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if (imagetype == 'r')
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{
rsp->status = strdup("302 Local Redirect from Privoxy");
if (rsp->status == NULL)
{
return JB_ERR_MEMORY;
}
if (enlist_unique_header(rsp->headers, "Location",
csp->action->string[ACTION_STRING_IMAGE_BLOCKER]))
{
return JB_ERR_MEMORY;
}
}
else
{
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if ((imagetype == 'b') || (imagetype == 't'))
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{
rsp->body = bindup(image_blank_data, image_blank_length);
rsp->content_length = image_blank_length;
}
else
{
rsp->body = bindup(image_pattern_data, image_pattern_length);
rsp->content_length = image_pattern_length;
}
if (rsp->body == NULL)
{
return JB_ERR_MEMORY;
}
if (enlist(rsp->headers, "Content-Type: " BUILTIN_IMAGE_MIMETYPE))
{
return JB_ERR_MEMORY;
}
rsp->is_static = 1;
}
return JB_ERR_OK;
}
/*********************************************************************
*
* Function : cgi_transparent_image
*
* Description : CGI function that sends a 1x1 transparent image.
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : None
*
* Returns : JB_ERR_OK on success
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*
*********************************************************************/
jb_err cgi_transparent_image(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
(void)csp;
(void)parameters;
rsp->body = bindup(image_blank_data, image_blank_length);
rsp->content_length = image_blank_length;
if (rsp->body == NULL)
{
return JB_ERR_MEMORY;
}
if (enlist(rsp->headers, "Content-Type: " BUILTIN_IMAGE_MIMETYPE))
{
return JB_ERR_MEMORY;
}
rsp->is_static = 1;
return JB_ERR_OK;
}
/*********************************************************************
*
* Function : cgi_send_default_favicon
*
* Description : CGI function that sends the standard favicon.
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : None
*
* Returns : JB_ERR_OK on success
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*
*********************************************************************/
jb_err cgi_send_default_favicon(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
static const char default_favicon_data[] =
"\000\000\001\000\001\000\020\020\002\000\000\000\000\000\260"
"\000\000\000\026\000\000\000\050\000\000\000\020\000\000\000"
"\040\000\000\000\001\000\001\000\000\000\000\000\100\000\000"
"\000\000\000\000\000\000\000\000\000\002\000\000\000\000\000"
"\000\000\377\377\377\000\377\000\052\000\017\360\000\000\077"
"\374\000\000\161\376\000\000\161\376\000\000\361\377\000\000"
"\361\377\000\000\360\017\000\000\360\007\000\000\361\307\000"
"\000\361\307\000\000\361\307\000\000\360\007\000\000\160\036"
"\000\000\177\376\000\000\077\374\000\000\017\360\000\000\360"
"\017\000\000\300\003\000\000\200\001\000\000\200\001\000\000"
"\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
"\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
"\000\000\200\001\000\000\200\001\000\000\300\003\000\000\360"
"\017\000\000";
static const size_t favicon_length = sizeof(default_favicon_data) - 1;
(void)csp;
(void)parameters;
rsp->body = bindup(default_favicon_data, favicon_length);
rsp->content_length = favicon_length;
if (rsp->body == NULL)
{
return JB_ERR_MEMORY;
}
if (enlist(rsp->headers, "Content-Type: image/x-icon"))
{
return JB_ERR_MEMORY;
}
rsp->is_static = 1;
return JB_ERR_OK;
}
/*********************************************************************
*
* Function : cgi_send_error_favicon
*
* Description : CGI function that sends the favicon for error pages.
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : None
*
* Returns : JB_ERR_OK on success
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*
*********************************************************************/
jb_err cgi_send_error_favicon(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
static const char error_favicon_data[] =
"\000\000\001\000\001\000\020\020\002\000\000\000\000\000\260"
"\000\000\000\026\000\000\000\050\000\000\000\020\000\000\000"
"\040\000\000\000\001\000\001\000\000\000\000\000\100\000\000"
"\000\000\000\000\000\000\000\000\000\002\000\000\000\000\000"
"\000\000\377\377\377\000\000\000\377\000\017\360\000\000\077"
"\374\000\000\161\376\000\000\161\376\000\000\361\377\000\000"
"\361\377\000\000\360\017\000\000\360\007\000\000\361\307\000"
"\000\361\307\000\000\361\307\000\000\360\007\000\000\160\036"
"\000\000\177\376\000\000\077\374\000\000\017\360\000\000\360"
"\017\000\000\300\003\000\000\200\001\000\000\200\001\000\000"
"\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
"\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
"\000\000\200\001\000\000\200\001\000\000\300\003\000\000\360"
"\017\000\000";
static const size_t favicon_length = sizeof(error_favicon_data) - 1;
(void)csp;
(void)parameters;
rsp->body = bindup(error_favicon_data, favicon_length);
rsp->content_length = favicon_length;
if (rsp->body == NULL)
{
return JB_ERR_MEMORY;
}
if (enlist(rsp->headers, "Content-Type: image/x-icon"))
{
return JB_ERR_MEMORY;
}
rsp->is_static = 1;
return JB_ERR_OK;
}
/*********************************************************************
*
* Function : cgi_send_stylesheet
*
* Description : CGI function that sends a css stylesheet found
* in the cgi-style.css template
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : None
*
* Returns : JB_ERR_OK on success
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* JB_ERR_MEMORY on out-of-memory error.
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*
*********************************************************************/
jb_err cgi_send_stylesheet(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
jb_err err;
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assert(csp);
assert(rsp);
(void)parameters;
err = template_load(csp, &rsp->body, "cgi-style.css", 0);
if (err == JB_ERR_FILE)
{
/*
* No way to tell user; send empty stylesheet
*/
log_error(LOG_LEVEL_ERROR, "Could not find cgi-style.css template");
}
else if (err)
{
return err; /* JB_ERR_MEMORY */
}
if (enlist(rsp->headers, "Content-Type: text/css"))
{
return JB_ERR_MEMORY;
}
return JB_ERR_OK;
}
/*********************************************************************
*
* Function : cgi_send_url_info_osd
*
* Description : CGI function that sends the OpenSearch Description
* template for the show-url-info page. It allows to
* access the page through "search engine plugins".
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : None
*
* Returns : JB_ERR_OK on success
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* JB_ERR_MEMORY on out-of-memory error.
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*
*********************************************************************/
jb_err cgi_send_url_info_osd(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
jb_err err = JB_ERR_MEMORY;
struct map *exports = default_exports(csp, NULL);
(void)csp;
(void)parameters;
if (NULL != exports)
{
err = template_fill_for_cgi(csp, "url-info-osd.xml", exports, rsp);
if (JB_ERR_OK == err)
{
err = enlist(rsp->headers,
"Content-Type: application/opensearchdescription+xml");
}
}
return err;
}
/*********************************************************************
*
* Function : cgi_send_user_manual
*
* Description : CGI function that sends a file in the user
* manual directory.
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : file=name.html, the name of the HTML file
* (relative to user-manual from config)
*
* Returns : JB_ERR_OK on success
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* JB_ERR_MEMORY on out-of-memory error.
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*
*********************************************************************/
jb_err cgi_send_user_manual(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
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const char * filename;
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char *full_path;
jb_err err = JB_ERR_OK;
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size_t length;
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assert(csp);
assert(rsp);
assert(parameters);
if (!parameters->first)
{
/* requested http://p.p/user-manual (without trailing slash) */
return cgi_redirect(rsp, CGI_PREFIX "user-manual/");
}
get_string_param(parameters, "file", &filename);
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/* Check paramter for hack attempts */
if (filename && strchr(filename, '/'))
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{
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return JB_ERR_CGI_PARAMS;
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}
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if (filename && strstr(filename, ".."))
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{
return JB_ERR_CGI_PARAMS;
}
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full_path = make_path(csp->config->usermanual, filename ? filename : "index.html");
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if (full_path == NULL)
{
return JB_ERR_MEMORY;
}
err = load_file(full_path, &rsp->body, &rsp->content_length);
if (JB_ERR_OK != err)
{
assert((JB_ERR_FILE == err) || (JB_ERR_MEMORY == err));
if (JB_ERR_FILE == err)
{
err = cgi_error_no_template(csp, rsp, full_path);
}
freez(full_path);
return err;
}
freez(full_path);
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/* Guess correct Content-Type based on the filename's ending */
if (filename)
{
length = strlen(filename);
}
else
{
length = 0;
}
if((length>=4) && !strcmp(&filename[length-4], ".css"))
{
err = enlist(rsp->headers, "Content-Type: text/css");
}
else if((length>=4) && !strcmp(&filename[length-4], ".jpg"))
{
err = enlist(rsp->headers, "Content-Type: image/jpeg");
}
else
{
err = enlist(rsp->headers, "Content-Type: text/html");
}
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return err;
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}
/*********************************************************************
*
* Function : cgi_show_version
*
* Description : CGI function that returns a a web page describing the
* file versions of Privoxy.
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : none
*
* Returns : JB_ERR_OK on success
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*
*********************************************************************/
jb_err cgi_show_version(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
struct map *exports;
assert(csp);
assert(rsp);
assert(parameters);
if (NULL == (exports = default_exports(csp, "show-version")))
{
return JB_ERR_MEMORY;
}
if (map(exports, "sourceversions", 1, show_rcs(), 0))
{
free_map(exports);
return JB_ERR_MEMORY;
}
return template_fill_for_cgi(csp, "show-version", exports, rsp);
}
/*********************************************************************
*
* Function : cgi_show_status
*
* Description : CGI function that returns a web page describing the
* current status of Privoxy.
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* file : Which file to show. Only first letter is checked,
* valid values are:
* - "a"ction file
* - "r"egex
* - "t"rust
* Default is to show menu and other information.
*
* Returns : JB_ERR_OK on success
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*
*********************************************************************/
jb_err cgi_show_status(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
char *s = NULL;
unsigned i;
int j;
char buf[BUFFER_SIZE];
#ifdef FEATURE_STATISTICS
float perc_rej; /* Percentage of http requests rejected */
int local_urls_read;
int local_urls_rejected;
#endif /* ndef FEATURE_STATISTICS */
jb_err err = JB_ERR_OK;
struct map *exports;
assert(csp);
assert(rsp);
assert(parameters);
if ('\0' != *(lookup(parameters, "file")))
{
return cgi_show_file(csp, rsp, parameters);
}
if (NULL == (exports = default_exports(csp, "show-status")))
{
return JB_ERR_MEMORY;
}
s = strdup("");
for (j = 0; (s != NULL) && (j < Argc); j++)
{
if (!err) err = string_join (&s, html_encode(Argv[j]));
if (!err) err = string_append(&s, " ");
}
if (!err) err = map(exports, "invocation", 1, s, 0);
if (!err) err = map(exports, "options", 1, csp->config->proxy_args, 1);
if (!err) err = show_defines(exports);
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if (err)
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{
free_map(exports);
return JB_ERR_MEMORY;
}
#ifdef FEATURE_STATISTICS
local_urls_read = urls_read;
local_urls_rejected = urls_rejected;
/*
* Need to alter the stats not to include the fetch of this
* page.
*
* Can't do following thread safely! doh!
*
* urls_read--;
* urls_rejected--; * This will be incremented subsequently *
*/
if (local_urls_read == 0)
{
if (!err) err = map_block_killer(exports, "have-stats");
}
else
{
if (!err) err = map_block_killer(exports, "have-no-stats");
perc_rej = (float)local_urls_rejected * 100.0F /
(float)local_urls_read;
snprintf(buf, sizeof(buf), "%d", local_urls_read);
if (!err) err = map(exports, "requests-received", 1, buf, 1);
snprintf(buf, sizeof(buf), "%d", local_urls_rejected);
if (!err) err = map(exports, "requests-blocked", 1, buf, 1);
snprintf(buf, sizeof(buf), "%6.2f", perc_rej);
if (!err) err = map(exports, "percent-blocked", 1, buf, 1);
}
#else /* ndef FEATURE_STATISTICS */
err = err || map_block_killer(exports, "statistics");
#endif /* ndef FEATURE_STATISTICS */
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/*
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* List all action files in use, together with view and edit links,
* except for standard.action, which should only be viewable. (Not
* enforced in the editor itself)
* FIXME: Shouldn't include hardwired HTML here, use line template instead!
*/
s = strdup("");
for (i = 0; i < MAX_AF_FILES; i++)
{
if (csp->actions_list[i] != NULL)
{
if (!err) err = string_append(&s, "<tr><td>");
if (!err) err = string_join(&s, html_encode(csp->actions_list[i]->filename));
snprintf(buf, sizeof(buf),
"</td><td class=\"buttons\"><a href=\"/show-status?file=actions&amp;index=%u\">View</a>", i);
if (!err) err = string_append(&s, buf);
#ifdef FEATURE_CGI_EDIT_ACTIONS
if ((csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS)
&& (NULL == strstr(csp->actions_list[i]->filename, "standard.action"))
&& (NULL != csp->config->actions_file_short[i]))
{
#ifdef HAVE_ACCESS
if (access(csp->config->actions_file[i], W_OK) == 0)
{
#endif /* def HAVE_ACCESS */
snprintf(buf, sizeof(buf), "&nbsp;&nbsp;<a href=\"/edit-actions-list?f=%u\">Edit</a>", i);
if (!err) err = string_append(&s, buf);
#ifdef HAVE_ACCESS
}
else
{
if (!err) err = string_append(&s, "&nbsp;&nbsp;<strong>No write access.</strong>");
}
#endif /* def HAVE_ACCESS */
}
#endif
if (!err) err = string_append(&s, "</td></tr>\n");
}
}
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if (*s != '\0')
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{
if (!err) err = map(exports, "actions-filenames", 1, s, 0);
}
else
{
if (!err) err = map(exports, "actions-filenames", 1, "<tr><td>None specified</td></tr>", 1);
}
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/*
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* List all re_filterfiles in use, together with view options.
* FIXME: Shouldn't include hardwired HTML here, use line template instead!
*/
s = strdup("");
for (i = 0; i < MAX_AF_FILES; i++)
{
if (csp->rlist[i] != NULL)
{
if (!err) err = string_append(&s, "<tr><td>");
if (!err) err = string_join(&s, html_encode(csp->rlist[i]->filename));
snprintf(buf, sizeof(buf),
"</td><td class=\"buttons\"><a href=\"/show-status?file=filter&amp;index=%u\">View</a>", i);
if (!err) err = string_append(&s, buf);
if (!err) err = string_append(&s, "</td></tr>\n");
}
}
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if (*s != '\0')
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{
if (!err) err = map(exports, "re-filter-filenames", 1, s, 0);
}
else
{
if (!err) err = map(exports, "re-filter-filenames", 1, "<tr><td>None specified</td></tr>", 1);
if (!err) err = map_block_killer(exports, "have-filterfile");
}
#ifdef FEATURE_TRUST
if (csp->tlist)
{
if (!err) err = map(exports, "trust-filename", 1, html_encode(csp->tlist->filename), 0);
}
else
{
if (!err) err = map(exports, "trust-filename", 1, "None specified", 1);
if (!err) err = map_block_killer(exports, "have-trustfile");
}
#else
if (!err) err = map_block_killer(exports, "trust-support");
#endif /* ndef FEATURE_TRUST */
#ifdef FEATURE_CGI_EDIT_ACTIONS
if (!err && (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
{
err = map_block_killer(exports, "cgi-editor-is-disabled");
}
#endif /* ndef CGI_EDIT_ACTIONS */
if (err)
{
free_map(exports);
return JB_ERR_MEMORY;
}
return template_fill_for_cgi(csp, "show-status", exports, rsp);
}
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/*********************************************************************
*
* Function : cgi_show_url_info
*
* Description : CGI function that determines and shows which actions
* Privoxy will perform for a given url, and which
* matches starting from the defaults have lead to that.
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* url : The url whose actions are to be determined.
* If url is unset, the url-given conditional will be
* set, so that all but the form can be suppressed in
* the template.
*
* Returns : JB_ERR_OK on success
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* JB_ERR_MEMORY on out-of-memory error.
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*
*********************************************************************/
jb_err cgi_show_url_info(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
char *url_param;
struct map *exports;
char buf[150];
assert(csp);
assert(rsp);
assert(parameters);
if (NULL == (exports = default_exports(csp, "show-url-info")))
{
return JB_ERR_MEMORY;
}
/*
* Get the url= parameter (if present) and remove any leading/trailing spaces.
*/
url_param = strdup(lookup(parameters, "url"));
if (url_param == NULL)
{
free_map(exports);
return JB_ERR_MEMORY;
}
chomp(url_param);
/*
* Handle prefixes. 4 possibilities:
* 1) "http://" or "https://" prefix present and followed by URL - OK
* 2) Only the "http://" or "https://" part is present, no URL - change
* to empty string so it will be detected later as "no URL".
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* 3) Parameter specified but doesn't contain "http(s?)://" - add a
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* "http://" prefix.
* 4) Parameter not specified or is empty string - let this fall through
* for now, next block of code will handle it.
*/
if (0 == strncmp(url_param, "http://", 7))
{
if (url_param[7] == '\0')
{
/*
* Empty URL (just prefix).
* Make it totally empty so it's caught by the next if()
*/
url_param[0] = '\0';
}
}
else if (0 == strncmp(url_param, "https://", 8))
{
if (url_param[8] == '\0')
{
/*
* Empty URL (just prefix).
* Make it totally empty so it's caught by the next if()
*/
url_param[0] = '\0';
}
}
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else if ((url_param[0] != '\0') && (NULL == strstr(url_param, "://")))
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{
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/* No prefix - assume http:// */
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char *url_param_prefixed = strdup("http://");
if (JB_ERR_OK != string_join(&url_param_prefixed, url_param))
{
free_map(exports);
return JB_ERR_MEMORY;
}
url_param = url_param_prefixed;
}
/*
* Hide "toggle off" warning if Privoxy is toggled on.
*/
if (
#ifdef FEATURE_TOGGLE
(global_toggle_state == 1) &&
#endif /* def FEATURE_TOGGLE */
map_block_killer(exports, "privoxy-is-toggled-off")
)
{
free_map(exports);
return JB_ERR_MEMORY;
}
if (url_param[0] == '\0')
{
/* URL paramater not specified, display query form only. */
free(url_param);
if (map_block_killer(exports, "url-given")
|| map(exports, "url", 1, "", 1))
{
free_map(exports);
return JB_ERR_MEMORY;
}
}
else
{
/* Given a URL, so query it. */
jb_err err;
char *matches;
char *s;
int hits = 0;
struct file_list *fl;
struct url_actions *b;
struct http_request url_to_query[1];
struct current_action_spec action[1];
int i;
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if (map(exports, "url", 1, html_encode(url_param), 0))
{
free(url_param);
free_map(exports);
return JB_ERR_MEMORY;
}
init_current_action(action);
if (map(exports, "default", 1, current_action_to_html(csp, action), 0))
{
free_current_action(action);
free(url_param);
free_map(exports);
return JB_ERR_MEMORY;
}
memset(url_to_query, '\0', sizeof(url_to_query));
err = parse_http_url(url_param, url_to_query, REQUIRE_PROTOCOL);
assert((err != JB_ERR_OK) || (url_to_query->ssl == !strncmpic(url_param, "https://", 8)));
free(url_param);
if (err == JB_ERR_MEMORY)
{
free_http_request(url_to_query);
free_current_action(action);
free_map(exports);
return JB_ERR_MEMORY;
}
else if (err)
{
/* Invalid URL */
err = map(exports, "matches", 1, "<b>[Invalid URL specified!]</b>" , 1);
if (!err) err = map(exports, "final", 1, lookup(exports, "default"), 1);
if (!err) err = map_block_killer(exports, "valid-url");
free_current_action(action);
free_http_request(url_to_query);
if (err)
{
free_map(exports);
return JB_ERR_MEMORY;
}
return template_fill_for_cgi(csp, "show-url-info", exports, rsp);
}
/*
* We have a warning about SSL paths. Hide it for unencrypted sites.
*/
if (!url_to_query->ssl)
{
if (map_block_killer(exports, "https"))
{
free_current_action(action);
free_map(exports);
free_http_request(url_to_query);
return JB_ERR_MEMORY;
}
}
matches = strdup("<table summary=\"\" class=\"transparent\">");
for (i = 0; i < MAX_AF_FILES; i++)
{
if (NULL == csp->config->actions_file_short[i]
|| !strcmp(csp->config->actions_file_short[i], "standard.action")) continue;
b = NULL;
hits = 1;
if ((fl = csp->actions_list[i]) != NULL)
{
if ((b = fl->f) != NULL)
{
/* FIXME: Hardcoded HTML! */
string_append(&matches, "<tr><th>In file: ");
string_join (&matches, html_encode(csp->config->actions_file_short[i]));
snprintf(buf, sizeof(buf), " <a class=\"cmd\" href=\"/show-status?file=actions&amp;index=%d\">", i);
string_append(&matches, buf);
string_append(&matches, "View</a>");
#ifdef FEATURE_CGI_EDIT_ACTIONS
if (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS)
{
#ifdef HAVE_ACCESS
if (access(csp->config->actions_file[i], W_OK) == 0)
{
#endif /* def HAVE_ACCESS */
snprintf(buf, sizeof(buf),
" <a class=\"cmd\" href=\"/edit-actions-list?f=%d\">", i);
string_append(&matches, buf);
string_append(&matches, "Edit</a>");
#ifdef HAVE_ACCESS
}
else
{
string_append(&matches, " <strong>No write access.</strong>");
}
#endif /* def HAVE_ACCESS */
}
#endif /* FEATURE_CGI_EDIT_ACTIONS */
string_append(&matches, "</th></tr>\n");
hits = 0;
b = b->next;
}
}
for (; (b != NULL) && (matches != NULL); b = b->next)
{
if (url_match(b->url, url_to_query))
{
string_append(&matches, "<tr><td>{");
string_join (&matches, actions_to_html(csp, b->action));
string_append(&matches, " }<br>\n<code>");
string_join (&matches, html_encode(b->url->spec));
string_append(&matches, "</code></td></tr>\n");
if (merge_current_action(action, b->action))
{
freez(matches);
free_http_request(url_to_query);
free_current_action(action);
free_map(exports);
return JB_ERR_MEMORY;
}
hits++;
}
}
if (!hits)
{
string_append(&matches, "<tr><td>(no matches in this file)</td></tr>\n");
}
}
string_append(&matches, "</table>\n");
/*
* XXX: Kludge to make sure the "Forward settings" section
* shows what forward-override{} would do with the requested URL.
* No one really cares how the CGI request would be forwarded
* if it wasn't intercepted as CGI request in the first place.
*
* From here on the action bitmask will no longer reflect
* the real url (http://config.privoxy.org/show-url-info?url=.*),
* but luckily it's no longer required later on anyway.
*/
free_current_action(csp->action);
get_url_actions(csp, url_to_query);
/*
* Fill in forwarding settings.
*
* The possibilities are:
* - no forwarding
* - http forwarding only
* - socks4(a) forwarding only
* - socks4(a) and http forwarding.
*
* XXX: Parts of this code could be reused for the
* "forwarding-failed" template which currently doesn't
* display the proxy port and an eventual second forwarder.
*/
{
const struct forward_spec *fwd = forward_url(csp, url_to_query);
if ((fwd->gateway_host == NULL) && (fwd->forward_host == NULL))
{
if (!err) err = map_block_killer(exports, "socks-forwarder");
if (!err) err = map_block_killer(exports, "http-forwarder");
}
else
{
char port[10]; /* We save proxy ports as int but need a string here */
if (!err) err = map_block_killer(exports, "no-forwarder");
if (fwd->gateway_host != NULL)
{
char *socks_type = NULL;
switch (fwd->type)
{
case SOCKS_4:
socks_type = "socks4";
break;
case SOCKS_4A:
socks_type = "socks4a";
break;
case SOCKS_5:
socks_type = "socks5";
break;
default:
log_error(LOG_LEVEL_FATAL, "Unknown socks type: %d.", fwd->type);
}
if (!err) err = map(exports, "socks-type", 1, socks_type, 1);
if (!err) err = map(exports, "gateway-host", 1, fwd->gateway_host, 1);
snprintf(port, sizeof(port), "%d", fwd->gateway_port);
if (!err) err = map(exports, "gateway-port", 1, port, 1);
}
else
{
if (!err) err = map_block_killer(exports, "socks-forwarder");
}
if (fwd->forward_host != NULL)
{
if (!err) err = map(exports, "forward-host", 1, fwd->forward_host, 1);
snprintf(port, sizeof(port), "%d", fwd->forward_port);
if (!err) err = map(exports, "forward-port", 1, port, 1);
}
else
{
if (!err) err = map_block_killer(exports, "http-forwarder");
}
}
}
free_http_request(url_to_query);
if (err || matches == NULL)
{
free_current_action(action);
free_map(exports);
return JB_ERR_MEMORY;
}
#ifdef FEATURE_CGI_EDIT_ACTIONS
if ((csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
{
err = map_block_killer(exports, "cgi-editor-is-disabled");
}
#endif /* FEATURE_CGI_EDIT_ACTIONS */
/*
* If zlib support is available, if no content filters
* are enabled or if the prevent-compression action is enabled,
* suppress the "compression could prevent filtering" warning.
*/
#ifndef FEATURE_ZLIB
if (!content_filters_enabled(action) ||
(action->flags & ACTION_NO_COMPRESSION))
#endif
{
if (!err) err = map_block_killer(exports, "filters-might-be-ineffective");
}
if (err || map(exports, "matches", 1, matches , 0))
{
free_current_action(action);
free_map(exports);
return JB_ERR_MEMORY;
}
s = current_action_to_html(csp, action);
free_current_action(action);
if (map(exports, "final", 1, s, 0))
{
free_map(exports);
return JB_ERR_MEMORY;
}
}
return template_fill_for_cgi(csp, "show-url-info", exports, rsp);
}
/*********************************************************************
*
* Function : cgi_robots_txt
*
* Description : CGI function to return "/robots.txt".
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters : None
*
* Returns : JB_ERR_OK on success
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* JB_ERR_MEMORY on out-of-memory error.
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*
*********************************************************************/
jb_err cgi_robots_txt(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
char buf[100];
jb_err err;
(void)csp;
(void)parameters;
rsp->body = strdup(
"# This is the Privoxy control interface.\n"
"# It isn't very useful to index it, and you're likely to break stuff.\n"
"# So go away!\n"
"\n"
"User-agent: *\n"
"Disallow: /\n"
"\n");
if (rsp->body == NULL)
{
return JB_ERR_MEMORY;
}
err = enlist_unique(rsp->headers, "Content-Type: text/plain", 13);
rsp->is_static = 1;
get_http_time(7 * 24 * 60 * 60, buf, sizeof(buf)); /* 7 days into future */
if (!err) err = enlist_unique_header(rsp->headers, "Expires", buf);
return (err ? JB_ERR_MEMORY : JB_ERR_OK);
}
/*********************************************************************
*
* Function : show_defines
*
* Description : Add to a map the state od all conditional #defines
* used when building
*
* Parameters :
* 1 : exports = map to extend
*
* Returns : JB_ERR_OK on success
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* JB_ERR_MEMORY on out-of-memory error.
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*
*********************************************************************/
static jb_err show_defines(struct map *exports)
{
jb_err err = JB_ERR_OK;
#ifdef FEATURE_ACL
if (!err) err = map_conditional(exports, "FEATURE_ACL", 1);
#else /* ifndef FEATURE_ACL */
if (!err) err = map_conditional(exports, "FEATURE_ACL", 0);
#endif /* ndef FEATURE_ACL */
#ifdef FEATURE_CGI_EDIT_ACTIONS
if (!err) err = map_conditional(exports, "FEATURE_CGI_EDIT_ACTIONS", 1);
#else /* ifndef FEATURE_CGI_EDIT_ACTIONS */
if (!err) err = map_conditional(exports, "FEATURE_CGI_EDIT_ACTIONS", 0);
#endif /* ndef FEATURE_CGI_EDIT_ACTIONS */
#ifdef FEATURE_CONNECTION_KEEP_ALIVE
if (!err) err = map_conditional(exports, "FEATURE_CONNECTION_KEEP_ALIVE", 1);
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#else /* ifndef FEATURE_CGI_EDIT_ACTIONS */
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if (!err) err = map_conditional(exports, "FEATURE_CONNECTION_KEEP_ALIVE", 0);
#endif /* ndef FEATURE_CONNECTION_KEEP_ALIVE */
#ifdef FEATURE_FAST_REDIRECTS
if (!err) err = map_conditional(exports, "FEATURE_FAST_REDIRECTS", 1);
#else /* ifndef FEATURE_FAST_REDIRECTS */
if (!err) err = map_conditional(exports, "FEATURE_FAST_REDIRECTS", 0);
#endif /* ndef FEATURE_FAST_REDIRECTS */
#ifdef FEATURE_FORCE_LOAD
if (!err) err = map_conditional(exports, "FEATURE_FORCE_LOAD", 1);
if (!err) err = map(exports, "FORCE_PREFIX", 1, FORCE_PREFIX, 1);
#else /* ifndef FEATURE_FORCE_LOAD */
if (!err) err = map_conditional(exports, "FEATURE_FORCE_LOAD", 0);
if (!err) err = map(exports, "FORCE_PREFIX", 1, "(none - disabled)", 1);
#endif /* ndef FEATURE_FORCE_LOAD */
#ifdef FEATURE_GRACEFUL_TERMINATION
if (!err) err = map_conditional(exports, "FEATURE_GRACEFUL_TERMINATION", 1);
#else /* ifndef FEATURE_GRACEFUL_TERMINATION */
if (!err) err = map_conditional(exports, "FEATURE_GRACEFUL_TERMINATION", 0);
#endif /* ndef FEATURE_GRACEFUL_TERMINATION */
#ifdef FEATURE_IMAGE_BLOCKING
if (!err) err = map_conditional(exports, "FEATURE_IMAGE_BLOCKING", 1);
#else /* ifndef FEATURE_IMAGE_BLOCKING */
if (!err) err = map_conditional(exports, "FEATURE_IMAGE_BLOCKING", 0);
#endif /* ndef FEATURE_IMAGE_BLOCKING */
#ifdef FEATURE_IMAGE_DETECT_MSIE
if (!err) err = map_conditional(exports, "FEATURE_IMAGE_DETECT_MSIE", 1);
#else /* ifndef FEATURE_IMAGE_DETECT_MSIE */
if (!err) err = map_conditional(exports, "FEATURE_IMAGE_DETECT_MSIE", 0);
#endif /* ndef FEATURE_IMAGE_DETECT_MSIE */
#ifdef FEATURE_NO_GIFS
if (!err) err = map_conditional(exports, "FEATURE_NO_GIFS", 1);
#else /* ifndef FEATURE_NO_GIFS */
if (!err) err = map_conditional(exports, "FEATURE_NO_GIFS", 0);
#endif /* ndef FEATURE_NO_GIFS */
#ifdef FEATURE_PTHREAD
if (!err) err = map_conditional(exports, "FEATURE_PTHREAD", 1);
#else /* ifndef FEATURE_PTHREAD */
if (!err) err = map_conditional(exports, "FEATURE_PTHREAD", 0);
#endif /* ndef FEATURE_PTHREAD */
#ifdef FEATURE_STATISTICS
if (!err) err = map_conditional(exports, "FEATURE_STATISTICS", 1);
#else /* ifndef FEATURE_STATISTICS */
if (!err) err = map_conditional(exports, "FEATURE_STATISTICS", 0);
#endif /* ndef FEATURE_STATISTICS */
#ifdef FEATURE_TOGGLE
if (!err) err = map_conditional(exports, "FEATURE_TOGGLE", 1);
#else /* ifndef FEATURE_TOGGLE */
if (!err) err = map_conditional(exports, "FEATURE_TOGGLE", 0);
#endif /* ndef FEATURE_TOGGLE */
#ifdef FEATURE_TRUST
if (!err) err = map_conditional(exports, "FEATURE_TRUST", 1);
#else /* ifndef FEATURE_TRUST */
if (!err) err = map_conditional(exports, "FEATURE_TRUST", 0);
#endif /* ndef FEATURE_TRUST */
#ifdef FEATURE_ZLIB
if (!err) err = map_conditional(exports, "FEATURE_ZLIB", 1);
#else /* ifndef FEATURE_ZLIB */
if (!err) err = map_conditional(exports, "FEATURE_ZLIB", 0);
#endif /* ndef FEATURE_ZLIB */
#ifdef STATIC_PCRE
if (!err) err = map_conditional(exports, "STATIC_PCRE", 1);
#else /* ifndef STATIC_PCRE */
if (!err) err = map_conditional(exports, "STATIC_PCRE", 0);
#endif /* ndef STATIC_PCRE */
#ifdef STATIC_PCRS
if (!err) err = map_conditional(exports, "STATIC_PCRS", 1);
#else /* ifndef STATIC_PCRS */
if (!err) err = map_conditional(exports, "STATIC_PCRS", 0);
#endif /* ndef STATIC_PCRS */
return err;
}
/*********************************************************************
*
* Function : show_rcs
*
* Description : Create a string with the rcs info for all sourcefiles
*
* Parameters : None
*
* Returns : A string, or NULL on out-of-memory.
*
*********************************************************************/
static char *show_rcs(void)
{
char *result = strdup("");
char buf[BUFFER_SIZE];
/* Instead of including *all* dot h's in the project (thus creating a
* tremendous amount of dependencies), I will concede to declaring them
* as extern's. This forces the developer to add to this list, but oh well.
*/
#define SHOW_RCS(__x) \
{ \
extern const char __x[]; \
snprintf(buf, sizeof(buf), " %s\n", __x); \
string_append(&result, buf); \
}
/* In alphabetical order */
SHOW_RCS(actions_h_rcs)
SHOW_RCS(actions_rcs)
#ifdef AMIGA
SHOW_RCS(amiga_h_rcs)
SHOW_RCS(amiga_rcs)
#endif /* def AMIGA */
SHOW_RCS(cgi_h_rcs)
SHOW_RCS(cgi_rcs)
#ifdef FEATURE_CGI_EDIT_ACTIONS
SHOW_RCS(cgiedit_h_rcs)
SHOW_RCS(cgiedit_rcs)
#endif /* def FEATURE_CGI_EDIT_ACTIONS */
SHOW_RCS(cgisimple_h_rcs)
SHOW_RCS(cgisimple_rcs)
#ifdef __MINGW32__
SHOW_RCS(cygwin_h_rcs)
#endif
SHOW_RCS(deanimate_h_rcs)
SHOW_RCS(deanimate_rcs)
SHOW_RCS(encode_h_rcs)
SHOW_RCS(encode_rcs)
SHOW_RCS(errlog_h_rcs)
SHOW_RCS(errlog_rcs)
SHOW_RCS(filters_h_rcs)
SHOW_RCS(filters_rcs)
SHOW_RCS(gateway_h_rcs)
SHOW_RCS(gateway_rcs)
SHOW_RCS(jbsockets_h_rcs)
SHOW_RCS(jbsockets_rcs)
SHOW_RCS(jcc_h_rcs)
SHOW_RCS(jcc_rcs)
SHOW_RCS(list_h_rcs)
SHOW_RCS(list_rcs)
SHOW_RCS(loadcfg_h_rcs)
SHOW_RCS(loadcfg_rcs)
SHOW_RCS(loaders_h_rcs)
SHOW_RCS(loaders_rcs)
SHOW_RCS(miscutil_h_rcs)
SHOW_RCS(miscutil_rcs)
SHOW_RCS(parsers_h_rcs)
SHOW_RCS(parsers_rcs)
SHOW_RCS(pcrs_rcs)
SHOW_RCS(pcrs_h_rcs)
SHOW_RCS(project_h_rcs)
SHOW_RCS(ssplit_h_rcs)
SHOW_RCS(ssplit_rcs)
SHOW_RCS(urlmatch_h_rcs)
SHOW_RCS(urlmatch_rcs)
#ifdef _WIN32
#ifndef _WIN_CONSOLE
SHOW_RCS(w32log_h_rcs)
SHOW_RCS(w32log_rcs)
SHOW_RCS(w32res_h_rcs)
SHOW_RCS(w32taskbar_h_rcs)
SHOW_RCS(w32taskbar_rcs)
#endif /* ndef _WIN_CONSOLE */
SHOW_RCS(win32_h_rcs)
SHOW_RCS(win32_rcs)
#endif /* def _WIN32 */
#undef SHOW_RCS
return result;
}
/*********************************************************************
*
* Function : cgi_show_file
*
* Description : CGI function that shows the content of a
* configuration file.
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* file : Which file to show. Only first letter is checked,
* valid values are:
* - "a"ction file
* - "r"egex
* - "t"rust
* Default is to show menu and other information.
*
* Returns : JB_ERR_OK on success
privoxy 3.0.12 clean checkin
2012-06-28 03:42:39 +00:00
* JB_ERR_MEMORY on out-of-memory error.
adding in privoxy directly to Orbot repo
2012-05-03 18:32:18 +00:00
*
*********************************************************************/
static jb_err cgi_show_file(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
unsigned i;
const char * filename = NULL;
char * file_description = NULL;
assert(csp);
assert(rsp);
assert(parameters);
switch (*(lookup(parameters, "file")))
{
case 'a':
if (!get_number_param(csp, parameters, "index", &i) && i < MAX_AF_FILES && csp->actions_list[i])
{
filename = csp->actions_list[i]->filename;
file_description = "Actions File";
}
break;
case 'f':
if (!get_number_param(csp, parameters, "index", &i) && i < MAX_AF_FILES && csp->rlist[i])
{
filename = csp->rlist[i]->filename;
file_description = "Filter File";
}
break;
#ifdef FEATURE_TRUST
case 't':
if (csp->tlist)
{
filename = csp->tlist->filename;
file_description = "Trust File";
}
break;
#endif /* def FEATURE_TRUST */
}
if (NULL != filename)
{
struct map *exports;
char *s;
jb_err err;
size_t length;
exports = default_exports(csp, "show-status");
if (NULL == exports)
{
return JB_ERR_MEMORY;
}
if ( map(exports, "file-description", 1, file_description, 1)
|| map(exports, "filepath", 1, html_encode(filename), 0) )
{
free_map(exports);
return JB_ERR_MEMORY;
}
err = load_file(filename, &s, &length);
if (JB_ERR_OK != err)
{
if (map(exports, "contents", 1, "<h1>ERROR OPENING FILE!</h1>", 1))
{
free_map(exports);
return JB_ERR_MEMORY;
}
}
else
{
s = html_encode_and_free_original(s);
if (NULL == s)
{
return JB_ERR_MEMORY;
}
if (map(exports, "contents", 1, s, 0))
{
free_map(exports);
return JB_ERR_MEMORY;
}
}
return template_fill_for_cgi(csp, "show-status-file", exports, rsp);
}
return JB_ERR_CGI_PARAMS;
}
privoxy 3.0.12 clean checkin
2012-06-28 03:42:39 +00:00
adding in privoxy directly to Orbot repo
2012-05-03 18:32:18 +00:00
/*********************************************************************
*
* Function : load_file
*
* Description : Loads a file into a buffer.
*
* Parameters :
* 1 : filename = Name of the file to be loaded.
* 2 : buffer = Used to return the file's content.
* 3 : length = Used to return the size of the file.
*
* Returns : JB_ERR_OK in case of success,
* JB_ERR_FILE in case of ordinary file loading errors
* (fseek() and ftell() errors are fatal)
* JB_ERR_MEMORY in case of out-of-memory.
*
*********************************************************************/
static jb_err load_file(const char *filename, char **buffer, size_t *length)
{
FILE *fp;
long ret;
jb_err err = JB_ERR_OK;
fp = fopen(filename, "rb");
if (NULL == fp)
{
return JB_ERR_FILE;
}
/* Get file length */
if (fseek(fp, 0, SEEK_END))
{
log_error(LOG_LEVEL_FATAL,
"Unexpected error while fseek()ing to the end of %s: %E",
filename);
}
ret = ftell(fp);
if (-1 == ret)
{
log_error(LOG_LEVEL_FATAL,
"Unexpected ftell() error while loading %s: %E",
filename);
}
*length = (size_t)ret;
/* Go back to the beginning. */
if (fseek(fp, 0, SEEK_SET))
{
log_error(LOG_LEVEL_FATAL,
"Unexpected error while fseek()ing to the beginning of %s: %E",
filename);
}
*buffer = (char *)zalloc(*length + 1);
if (NULL == *buffer)
{
err = JB_ERR_MEMORY;
}
else if (!fread(*buffer, *length, 1, fp))
{
/*
* May happen if the file size changes between fseek() and
* fread(). If it does, we just log it and serve what we got.
*/
log_error(LOG_LEVEL_ERROR,
"Couldn't completely read file %s.", filename);
err = JB_ERR_FILE;
}
fclose(fp);
return err;
}
/*
Local Variables:
tab-width: 3
end:
*/