+ * Revision 1.77 2006/09/21 15:17:23 fabiankeil
+ * Adjusted headers for Privoxy's cgi responses:
+ * Don't set Last-Modified, Expires and Cache-Control
+ * headers for redirects; always set "Connection: close".
+ *
+ * Revision 1.76 2006/09/07 14:06:38 fabiankeil
+ * Only predate the Last-Modified header for cgi responses
+ * that are delivered with status code 404 or 503.
+ *
+ * Revision 1.75 2006/09/07 11:56:39 fabiankeil
+ * Mark cgi_send_user_manual as harmless,
+ * to fix the access denied problem Hal spotted.
+ * The manual has no secret content, therefore we
+ * don't have to care about "secure" referrers.
+ *
+ * Revision 1.74 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 1.73 2006/08/03 02:46:41 david__schmidt
+ * Incorporate Fabian Keil's patch work:\rhttp://www.fabiankeil.de/sourcecode/privoxy/
+ *
+ * Revision 1.72 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 1.70.2.13 2004/02/17 13:30:23 oes
+ * Moved cgi_error_disabled() from cgiedit.c to
+ * cgi.c to re-enable build with --disable-editor.
+ * Fixes Bug #892744. Thanks to Matthew Fischer
+ * for spotting.
+ *
+ * Revision 1.70.2.12 2003/12/17 16:33:16 oes
+ * - Added new function cgi_redirect to handle creation of
+ * HTTP redirect messages formerly repeated in the code.
+ * - Send cgi_error_disabled instead of cgi_error_404 when
+ * referrer check fails
+ * - Dynamic content now gets Expires header field with date
+ * in the past
+ *
+ * Revision 1.70.2.11 2003/10/23 12:29:26 oes
+ * Bugfix: Transparent PNG was not transparent. Thanks to
+ * Dan Razzell of Starfish Systems for notice and new PNG.
+ *
+ * Revision 1.70.2.10 2003/06/06 07:54:25 oes
+ * Security fix: dspatch_known_cgi no longer considers an empty
+ * referrer safe for critical CGIs, since malicious links could
+ * reside on https:// locations which browsers don't advertize as
+ * referrers. Closes bug #749916, thanks to Jeff Epler for the
+ * hint. Goodbye One-Click[tm] toggling :-(
+ *
+ * Revision 1.70.2.9 2003/05/08 15:11:31 oes
+ * Nit
+ *
+ * Revision 1.70.2.8 2003/04/29 13:33:51 oes
+ * Killed a compiler warning on OSX
+ *
+ * Revision 1.70.2.7 2003/04/03 13:50:58 oes
+ * - Don't call cgi_error_disabled ifndef FEATURE_CGI_EDIT_ACTIONS
+ * (fixes bug #710056)
+ * - Show toggle info only if we have it
+ *
+ * Revision 1.70.2.6 2003/03/12 01:26:25 david__schmidt
+ * Move declaration of struct tm dummy outside of a control block so it is
+ * accessible later on during snprintf in get_http_time.
+ *
+ * Revision 1.70.2.5 2003/03/11 11:53:58 oes
+ * Cosmetic: Renamed cryptic variable
+ *
+ * Revision 1.70.2.4 2003/03/07 03:41:03 david__schmidt
+ * Wrapping all *_r functions (the non-_r versions of them) with mutex semaphores for OSX. Hopefully this will take care of all of those pesky crash reports.
+ *
+ * Revision 1.70.2.3 2002/11/28 18:14:32 oes
+ * Disable access to critical CGIs via untrusted referrers.
+ * This prevents users from being tricked by malicious websites
+ * into making unintentional configuration changes:
+ *
+ * - Added flag to each cgi_dispatcher that allows or denies
+ * external linking
+ * - Introduced proviorical function that greps for the
+ * referrer header before regular header parsing happens
+ * - Added safety check to dispatch_known_cgi. CGI is called
+ * if (cgi harmless || no referrer || we are referrer).
+ * Else a) toggle calls are modified not to change status and
+ * b) all other calls are denied.
+ *
+ * Revision 1.70.2.2 2002/11/12 16:20:37 oes
+ * Added missing #ifdef FEATURE_TOGGLE around g_bToggleIJB; fixes bug #636651
+ *
+ * Revision 1.70.2.1 2002/08/05 11:17:46 oes
+ * Fixed Bug #587820, i.e. added workaround for IE bug that includes fragment identifier in (cgi) query
+ *
+ * Revision 1.70 2002/05/19 11:33:20 jongfoster
+ * If a CGI error was not handled, and propogated back to
+ * dispatch_known_cgi(), then it was assumed to be "out of memory".
+ * This gave a very misleading error message.
+ *
+ * Now other errors will cause a simple message giving the error
+ * number and asking the user to report a bug.
+ *
+ * Bug report:
+ * http://sourceforge.net/tracker/index.php?func=detail
+ * &aid=557905&group_id=11118&atid=111118
+ *
+ * Revision 1.69 2002/05/14 21:28:40 oes
+ * - Fixed add_help_link to link to the (now split) actions
+ * part of the config chapter
+ * - Renamed helplink export to actions-help-prefix
+ *
+ * Revision 1.68 2002/05/12 21:36:29 jongfoster
+ * Correcting function comments
+ *
+ * Revision 1.67 2002/04/30 12:02:07 oes
+ * Nit: updated a comment
+ *
+ * Revision 1.66 2002/04/26 18:32:57 jongfoster
+ * Fixing a memory leak on error
+ *
+ * Revision 1.65 2002/04/26 12:53:51 oes
+ * - New function add_help_link
+ * - default_exports now exports links to the user manual
+ * and a prefix for links into the config chapter
+ *
+ * Revision 1.64 2002/04/24 02:17:21 oes
+ * - Better descriptions for CGIs
+ * - Hide edit-actions, more shortcuts
+ * - Moved get_char_param, get_string_param and get_number_param here
+ * from cgiedit.c
+ *
+ * Revision 1.63 2002/04/15 19:06:43 jongfoster
+ * Typos
+ *
+ * Revision 1.62 2002/04/10 19:59:46 jongfoster
+ * Fixes to #include in templates:
+ * - Didn't close main file if loading an included template fails.
+ * - I'm paranoid and want to disallow "#include /etc/passwd".
+ *
+ * Revision 1.61 2002/04/10 13:37:48 oes
+ * Made templates modular: template_load now recursive with max depth 1
+ *
+ * Revision 1.60 2002/04/08 20:50:25 swa
+ * fixed JB spelling
+ *
+ * Revision 1.59 2002/04/05 15:51:51 oes
+ * - added send-stylesheet CGI
+ * - bugfix: error-pages now get correct request protocol
+ * - fixed
+ * - kludged CGI descriptions and menu not to break JS syntax
+ *
+ * Revision 1.58 2002/03/29 03:33:13 david__schmidt
+ * Fix Mac OSX compiler warnings
+ *
+ * Revision 1.57 2002/03/26 22:29:54 swa
+ * we have a new homepage!
+ *
+ * Revision 1.56 2002/03/24 17:50:46 jongfoster
+ * Fixing compile error if actions file editor disabled
+ *