290 lines
11 KiB
C
290 lines
11 KiB
C
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#ifndef CGI_H_INCLUDED
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#define CGI_H_INCLUDED
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#define CGI_H_VERSION "$Id: cgi.h,v 1.35 2008/05/21 15:24:37 fabiankeil Exp $"
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/*********************************************************************
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*
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* File : $Source: /cvsroot/ijbswa/current/cgi.h,v $
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*
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* Purpose : Declares functions to intercept request, generate
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* html or gif answers, and to compose HTTP resonses.
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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) 2001-2007 the SourceForge
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* Privoxy team. http://www.privoxy.org/
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*
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* 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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*
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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
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* Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will
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* be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* The GNU General Public License should be included with
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* this file. If not, you can view it at
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* http://www.gnu.org/copyleft/gpl.html
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* or write to the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Revisions :
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* $Log: cgi.h,v $
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* Revision 1.35 2008/05/21 15:24:37 fabiankeil
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* Mark csp as immutable for a bunch of functions.
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*
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* Revision 1.34 2008/04/17 14:40:48 fabiankeil
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* Provide get_http_time() with the buffer size so it doesn't
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* have to blindly assume that the buffer is big enough.
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*
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* Revision 1.33 2007/01/28 13:41:17 fabiankeil
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* - Add HEAD support to finish_http_response.
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* - Add error favicon to internal HTML error messages.
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*
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* Revision 1.32 2006/12/17 17:53:39 fabiankeil
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* Suppress the toggle link if remote toggling is disabled.
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*
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* Revision 1.31 2006/07/18 14:48:45 david__schmidt
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* Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch)
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* with what was really the latest development (the v_3_0_branch branch)
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*
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* Revision 1.29.2.2 2004/02/17 13:30:23 oes
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* Moved cgi_error_disabled() from cgiedit.c to
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* cgi.c to re-enable build with --disable-editor.
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* Fixes Bug #892744. Thanks to Matthew Fischer
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* for spotting.
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*
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* Revision 1.29.2.1 2003/12/17 16:33:28 oes
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* Added prototype of new function cgi_redirect
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*
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* Revision 1.29 2002/05/19 11:33:21 jongfoster
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* If a CGI error was not handled, and propogated back to
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* dispatch_known_cgi(), then it was assumed to be "out of memory".
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* This gave a very misleading error message.
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*
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* Now other errors will cause a simple message giving the error
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* number and asking the user to report a bug.
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*
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* Bug report:
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* http://sourceforge.net/tracker/index.php?func=detail
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* &aid=557905&group_id=11118&atid=111118
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*
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* Revision 1.28 2002/04/26 12:54:03 oes
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* New function add_help_link
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*
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* Revision 1.27 2002/04/24 02:16:51 oes
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* Moved get_char_param, get_string_param and get_number_param here from cgiedit.c
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*
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* Revision 1.26 2002/04/10 13:38:35 oes
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* load_template signature changed
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*
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* Revision 1.25 2002/04/08 20:50:25 swa
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* fixed JB spelling
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*
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* Revision 1.24 2002/03/26 22:29:54 swa
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* we have a new homepage!
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*
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* Revision 1.23 2002/03/24 16:18:15 jongfoster
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* Removing old logo
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*
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* Revision 1.22 2002/03/24 13:25:43 swa
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* name change related issues
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*
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* Revision 1.21 2002/03/07 03:48:38 oes
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* - Changed built-in images from GIF to PNG
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* (with regard to Unisys patent issue)
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* - Added a 4x4 pattern PNG which is less intrusive
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* than the logo but also clearly marks the deleted banners
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*
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* Revision 1.20 2002/03/04 17:53:22 oes
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* Fixed compiled warning
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*
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* Revision 1.19 2002/01/21 00:33:52 jongfoster
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* Adding map_block_keep() to save a few bytes in the edit-actions-list HTML.
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*
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* Revision 1.18 2001/11/16 00:46:31 jongfoster
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* Fixing compiler warnings
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*
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* Revision 1.17 2001/10/23 21:48:19 jongfoster
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* Cleaning up error handling in CGI functions - they now send back
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* a HTML error page and should never cause a FATAL error. (Fixes one
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* potential source of "denial of service" attacks).
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*
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* CGI actions file editor that works and is actually useful.
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*
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* Ability to toggle Junkbuster remotely using a CGI call.
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*
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* You can turn off both the above features in the main configuration
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* file, e.g. if you are running a multi-user proxy.
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*
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* Revision 1.16 2001/09/16 17:08:54 jongfoster
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* Moving simple CGI functions from cgi.c to new file cgisimple.c
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*
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* Revision 1.15 2001/09/16 15:02:35 jongfoster
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* Adding i.j.b/robots.txt.
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* Inlining add_stats() since it's only ever called from one place.
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*
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* Revision 1.14 2001/09/16 11:38:02 jongfoster
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* Splitting fill_template() into 2 functions:
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* template_load() loads the file
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* template_fill() performs the PCRS regexps.
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* This is because the CGI edit interface has a "table row"
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* template which is used many times in the page - this
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* change means it's only loaded from disk once.
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*
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* Revision 1.13 2001/09/16 11:00:10 jongfoster
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* New function alloc_http_response, for symmetry with free_http_response
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*
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* Revision 1.12 2001/09/13 23:31:25 jongfoster
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* Moving image data to cgi.c rather than cgi.h.
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*
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* Revision 1.11 2001/08/05 16:06:20 jongfoster
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* Modifiying "struct map" so that there are now separate header and
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* "map_entry" structures. This means that functions which modify a
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* map no longer need to return a pointer to the modified map.
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* Also, it no longer reverses the order of the entries (which may be
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* important with some advanced template substitutions).
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*
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* Revision 1.10 2001/08/01 21:19:22 jongfoster
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* Moving file version information to a separate CGI page.
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*
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* Revision 1.9 2001/08/01 00:17:54 jongfoster
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* Adding prototype for map_conditional
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*
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* Revision 1.8 2001/07/30 22:08:36 jongfoster
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* Tidying up #defines:
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* - All feature #defines are now of the form FEATURE_xxx
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* - Permanently turned off WIN_GUI_EDIT
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* - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
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*
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* Revision 1.7 2001/07/29 18:43:08 jongfoster
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* Changing #ifdef _FILENAME_H to FILENAME_H_INCLUDED, to conform to
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* ANSI C rules.
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*
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* Revision 1.6 2001/06/29 21:45:41 oes
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* Indentation, CRLF->LF, Tab-> Space
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*
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* Revision 1.5 2001/06/29 13:22:44 oes
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* - Cleaned up
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* - Added new functions: default_exports(), make_menu(),
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* error_response() etc, ranamed others and changed
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* param and return types.
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* - Removed HTTP/HTML snipplets
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* - Removed logentry from cancelled commit
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*
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* Revision 1.4 2001/06/09 10:50:58 jongfoster
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* Changing "show URL info" handler to new style.
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* Adding "extern" to some function prototypes.
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*
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* Revision 1.3 2001/06/03 19:12:16 oes
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* introduced new cgi handling
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*
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* No revisions before 1.3
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*
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**********************************************************************/
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#include "project.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Main dispatch function
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*/
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extern struct http_response *dispatch_cgi(struct client_state *csp);
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/* Not exactly a CGI */
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extern struct http_response * error_response(struct client_state *csp,
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const char *templatename,
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int err);
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/*
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* CGI support functions
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*/
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extern struct http_response * alloc_http_response(void);
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extern void free_http_response(struct http_response *rsp);
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extern struct http_response *finish_http_response(const struct client_state *csp,
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struct http_response *rsp);
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extern struct map * default_exports(const struct client_state *csp, const char *caller);
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extern jb_err map_block_killer (struct map *exports, const char *name);
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extern jb_err map_block_keep (struct map *exports, const char *name);
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extern jb_err map_conditional (struct map *exports, const char *name, int choose_first);
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extern jb_err template_load(const struct client_state *csp, char ** template_ptr,
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const char *templatename, int recursive);
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extern jb_err template_fill(char ** template_ptr, const struct map *exports);
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extern jb_err template_fill_for_cgi(const struct client_state *csp,
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const char *templatename,
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struct map *exports,
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struct http_response *rsp);
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extern void cgi_init_error_messages(void);
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extern struct http_response *cgi_error_memory(void);
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extern jb_err cgi_redirect (struct http_response * rsp, const char *target);
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extern jb_err cgi_error_no_template(const struct client_state *csp,
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struct http_response *rsp,
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const char *template_name);
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extern jb_err cgi_error_bad_param(const struct client_state *csp,
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struct http_response *rsp);
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extern jb_err cgi_error_disabled(const struct client_state *csp,
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struct http_response *rsp);
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extern jb_err cgi_error_unknown(const struct client_state *csp,
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struct http_response *rsp,
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jb_err error_to_report);
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extern jb_err get_number_param(struct client_state *csp,
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const struct map *parameters,
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char *name,
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unsigned *pvalue);
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extern jb_err get_string_param(const struct map *parameters,
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const char *param_name,
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const char **pparam);
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extern char get_char_param(const struct map *parameters,
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const char *param_name);
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/*
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* Text generators
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*/
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extern void get_http_time(int time_offset, char *buf, size_t buffer_size);
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extern char *add_help_link(const char *item, struct configuration_spec *config);
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extern char *make_menu(const char *self, const unsigned feature_flags);
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extern char *dump_map(const struct map *the_map);
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/*
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* Ad replacement images
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*/
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extern const char image_pattern_data[];
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extern const size_t image_pattern_length;
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extern const char image_blank_data[];
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extern const size_t image_blank_length;
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/* Revision control strings from this header and associated .c file */
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extern const char cgi_rcs[];
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extern const char cgi_h_rcs[];
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* ndef CGI_H_INCLUDED */
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/*
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Local Variables:
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tab-width: 3
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end:
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*/
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