X-Git-Url: http://www.privoxy.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=cgi.c;h=73461ddbc94af5e225f1e076bbb174500beb1dda;hb=db458fcba6f14ff865a882bafb62b07e22c7b980;hp=66776a7ee710633fefe71d0aeae18457660e7408;hpb=d27eb9d7c53b9c2f81b83e0cc1f5f2ba5166b002;p=privoxy.git diff --git a/cgi.c b/cgi.c index 66776a7e..73461ddb 100644 --- a/cgi.c +++ b/cgi.c @@ -1,4 +1,4 @@ -const char cgi_rcs[] = "$Id: cgi.c,v 1.36 2001/10/26 17:33:27 oes Exp $"; +const char cgi_rcs[] = "$Id: cgi.c,v 1.50 2002/03/16 23:54:06 jongfoster Exp $"; /********************************************************************* * * File : $Source: /cvsroot/ijbswa/current/cgi.c,v $ @@ -12,7 +12,7 @@ const char cgi_rcs[] = "$Id: cgi.c,v 1.36 2001/10/26 17:33:27 oes Exp $"; * * * Copyright : Written by and Copyright (C) 2001 the SourceForge - * IJBSWA team. http://ijbswa.sourceforge.net + * Privoxy team. http://ijbswa.sourceforge.net * * Based on the Internet Junkbuster originally written * by and Copyright (C) 1997 Anonymous Coders and @@ -38,6 +38,72 @@ const char cgi_rcs[] = "$Id: cgi.c,v 1.36 2001/10/26 17:33:27 oes Exp $"; * * Revisions : * $Log: cgi.c,v $ + * Revision 1.50 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 1.49 2002/03/13 00:27:04 jongfoster + * Killing warnings + * + * Revision 1.48 2002/03/08 17:47:07 jongfoster + * Adding comments + * + * Revision 1.47 2002/03/08 16:41:33 oes + * Added GIF images again + * + * Revision 1.46 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 1.45 2002/03/06 22:54:35 jongfoster + * Automated function-comment nitpicking. + * + * Revision 1.44 2002/03/05 22:43:45 david__schmidt + * - Better error reporting on OS/2 + * - Fix double-slash comment (oops) + * + * Revision 1.43 2002/03/05 21:33:45 david__schmidt + * - Re-enable OS/2 building after new parms were added + * - Fix false out of memory report when resolving CGI templates when no IP + * address is available of failed attempt (a la no such domain) + * + * Revision 1.42 2002/01/21 00:33:20 jongfoster + * Replacing strsav() with the safer string_append() or string_join(). + * Adding map_block_keep() to save a few bytes in the edit-actions-list HTML. + * Adding missing html_encode() to error message generators. + * Adding edit-actions-section-swap and many "shortcuts" to the list of CGIs. + * + * Revision 1.41 2002/01/17 20:56:22 jongfoster + * Replacing hard references to the URL of the config interface + * with #defines from project.h + * + * Revision 1.40 2002/01/09 14:26:46 oes + * Added support for thread-safe gmtime_r call. + * + * Revision 1.39 2001/11/16 00:48:13 jongfoster + * Fixing a compiler warning + * + * Revision 1.38 2001/11/13 00:31:21 jongfoster + * - Adding new CGIs for use by non-JavaScript browsers: + * edit-actions-url-form + * edit-actions-add-url-form + * edit-actions-remove-url-form + * - Fixing make_menu()'s HTML generation - it now quotes the href parameter. + * - Fixing || bug. + * + * Revision 1.37 2001/11/01 14:28:47 david__schmidt + * Show enablement/disablement status in almost all templates. + * There is a little trickiness here: apparent recursive resolution of + * @if-enabled-then@ caused the toggle template to show status out-of-phase with + * the actual enablement status. So a similar construct, + * @if-enabled-display-then@, is used to resolve the status display on non-'toggle' + * templates. + * * Revision 1.36 2001/10/26 17:33:27 oes * marginal bugfix * @@ -273,7 +339,12 @@ const char cgi_h_rcs[] = CGI_H_VERSION; static const struct cgi_dispatcher cgi_dispatchers[] = { { "", cgi_default, - "Junkbuster main page" }, + "Privoxy main page" }, +#ifdef FEATURE_GRACEFUL_TERMINATION + { "die", + cgi_die, + "Shut down - Do not deploy this build in a production environment, this is a one click Denial Of Service attack!!!" }, +#endif { "show-status", cgi_show_status, "Show information about the current configuration" }, @@ -293,6 +364,29 @@ static const struct cgi_dispatcher cgi_dispatchers[] = { { "edit-actions", cgi_edit_actions, "Edit the actions list" }, + + + { "eaa", /* Shortcut for edit-actions-add-url-form */ + cgi_edit_actions_add_url_form, + NULL }, + { "eau", /* Shortcut for edit-actions-url-form */ + cgi_edit_actions_url_form, + NULL }, + { "ear", /* Shortcut for edit-actions-remove-url-form */ + cgi_edit_actions_remove_url_form, + NULL }, + { "eas", /* Shortcut for edit-actions-for-url */ + cgi_edit_actions_for_url, + NULL }, + { "easa", /* Shortcut for edit-actions-section-add */ + cgi_edit_actions_section_add, + NULL }, + { "easr", /* Shortcut for edit-actions-section-remove */ + cgi_edit_actions_section_remove, + NULL }, + { "eass", /* Shortcut for edit-actions-section-swap */ + cgi_edit_actions_section_swap, + NULL }, { "edit-actions-for-url", cgi_edit_actions_for_url, NULL /* Edit the actions for (a) specified URL(s) */ }, @@ -305,25 +399,40 @@ static const struct cgi_dispatcher cgi_dispatchers[] = { { "edit-actions-url", cgi_edit_actions_url, NULL /* Change a URL pattern in the actionsfile */ }, + { "edit-actions-url-form", + cgi_edit_actions_url_form, + NULL /* Form to change a URL pattern in the actionsfile */ }, { "edit-actions-add-url", cgi_edit_actions_add_url, NULL /* Add a URL pattern to the actionsfile */ }, + { "edit-actions-add-url-form", + cgi_edit_actions_add_url_form, + NULL /* Form to add a URL pattern to the actionsfile */ }, { "edit-actions-remove-url", cgi_edit_actions_remove_url, - NULL /* Add a URL pattern to the actionsfile */ }, - { "edit-actions-section-remove", - cgi_edit_actions_section_remove, - NULL /* Remove a section from the actionsfile */ }, + NULL /* Remove a URL pattern from the actionsfile */ }, + { "edit-actions-remove-url-form", + cgi_edit_actions_remove_url_form, + NULL /* Form to remove a URL pattern from the actionsfile */ }, { "edit-actions-section-add", cgi_edit_actions_section_add, NULL /* Remove a section from the actionsfile */ }, + { "edit-actions-section-remove", + cgi_edit_actions_section_remove, + NULL /* Remove a section from the actionsfile */ }, + { "edit-actions-section-swap", + cgi_edit_actions_section_swap, + NULL /* Swap two sections in the actionsfile */ }, #endif /* def FEATURE_CGI_EDIT_ACTIONS */ { "robots.txt", cgi_robots_txt, NULL /* Sends a robots.txt file to tell robots to go away. */ }, { "send-banner", cgi_send_banner, - NULL /* Send the transparent or \"Junkbuster\" gif */ }, + NULL /* Send a built-in image */ }, + { "t", + cgi_transparent_image, + NULL /* Send a transparent image (short name) */ }, { NULL, /* NULL Indicates end of list and default page */ cgi_error_404, NULL /* Unknown CGI page */ } @@ -331,13 +440,62 @@ static const struct cgi_dispatcher cgi_dispatchers[] = { /* - * Some images + * Bulit-in images for ad replacement * - * Hint: You can encode your own GIFs like this: - * perl -e 'while (read STDIN, $c, 1) { printf("\\%.3o,", unpack("C", $c)); }' + * Hint: You can encode your own images like this: + * cat your-image | perl -e 'while (read STDIN, $c, 1) { printf("\\%.3o", unpack("C", $c)); }' + */ + +#ifdef FEATURE_NO_GIFS + +/* + * "Junkbuster" logo, as a PNG. */ +const char image_logo_data[] = + "\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104" + "\122\000\000\000\104\000\000\000\013\001\003\000\000\000\374" + "\323\271\110\000\000\000\004\147\101\115\101\000\000\261\217" + "\013\374\141\005\000\000\000\006\120\114\124\105\310\310\310" + "\000\000\000\062\100\100\345\000\000\000\001\164\122\116\123" + "\000\100\346\330\146\000\000\000\001\142\113\107\104\000\210" + "\005\035\110\000\000\000\126\111\104\101\124\170\332\143\140" + "\200\003\066\006\146\066\006\006\011\124\326\331\315\146\147" + "\316\333\174\116\000\262\156\247\347\334\234\071\373\001\220" + "\065\373\130\316\035\311\331\015\020\326\161\311\337\014\014" + "\151\147\147\247\345\034\236\331\014\144\335\235\155\236\173" + "\163\366\154\006\006\233\334\331\162\307\316\363\174\106\330" + "\300\000\000\002\127\040\324\250\204\044\102\000\000\000\000" + "\111\105\116\104\256\102\140\202"; -const char image_junkbuster_gif_data[] = +/* + * Checkerboard pattern, as a PNG. + */ +const char image_pattern_data[] = + "\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104" + "\122\000\000\000\004\000\000\000\004\010\002\000\000\000\046" + "\223\011\051\000\000\000\006\142\113\107\104\000\310\000\310" + "\000\310\052\045\225\037\000\000\000\032\111\104\101\124\170" + "\332\143\070\161\342\304\377\377\377\041\044\003\234\165\342" + "\304\011\006\234\062\000\125\200\052\251\125\174\360\223\000" + "\000\000\000\111\105\116\104\256\102\140\202"; + +/* + * 1x1 transparant PNG. + */ +const char image_blank_data[] = + "\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104" + "\122\000\000\000\002\000\000\000\002\010\002\000\000\000\375" + "\324\232\163\000\000\000\006\142\113\107\104\000\310\000\310" + "\000\310\052\045\225\037\000\000\000\027\111\104\101\124\170" + "\332\143\374\377\377\377\311\223\047\031\116\234\070\361\377" + "\377\177\000\112\335\012\257\162\103\306\335\000\000\000\000" + "\111\105\116\104\256\102\140\202o"; +#else + +/* + * "Junkbuster" logo, as a GIF. + */ +const char image_logo_data[] = "GIF89aD\000\013\000\360\000\000\000\000\000\377\377\377!" "\371\004\001\000\000\001\000,\000\000\000\000D\000\013\000" "\000\002a\214\217\251\313\355\277\000\200G&K\025\316hC\037" @@ -347,30 +505,45 @@ const char image_junkbuster_gif_data[] = "\372\003S\275\274k2\354\254z\347?\335\274x\306^9\374\276" "\037Q\000\000;"; -const int image_junkbuster_gif_length = sizeof(image_junkbuster_gif_data) - 1; - +/* + * Checkerboard pattern, as a GIF. + */ +const char image_pattern_data[] = + "\107\111\106\070\071\141\004\000\004\000\200\000\000\310\310" + "\310\377\377\377\041\376\025\111\040\165\163\145\144\040\164" + "\157\040\142\145\040\141\040\142\141\156\156\145\162\000\054" + "\000\000\000\000\004\000\004\000\000\002\005\104\174\147\270" + "\005\000\073"; -const char image_blank_gif_data[] = +/* + * 1x1 transparant GIF. + */ +const char image_blank_data[] = "GIF89a\001\000\001\000\200\000\000\377\377\377\000\000" "\000!\371\004\001\000\000\000\000,\000\000\000\000\001" "\000\001\000\000\002\002D\001\000;"; +#endif -const int image_blank_gif_length = sizeof(image_blank_gif_data) - 1; +const size_t image_logo_length = sizeof(image_logo_data) - 1; +const size_t image_pattern_length = sizeof(image_pattern_data) - 1; +const size_t image_blank_length = sizeof(image_blank_data) - 1; static struct http_response cgi_error_memory_response[1]; - static struct http_response *dispatch_known_cgi(struct client_state * csp, const char * path); +static struct map *parse_cgi_parameters(char *argstring); /********************************************************************* * * Function : dispatch_cgi * - * Description : Checks if a request URL has either the magical hostname - * i.j.b or matches HOME_PAGE_URL/config/. If so, it passes + * Description : Checks if a request URL has either the magical + * hostname CGI_SITE_1_HOST (usully http://i.j.b/) or + * matches CGI_SITE_2_HOST CGI_SITE_2_PATH (usually + * http://ijbswa.sourceforge.net/config). If so, it passes * the (rest of the) path onto dispatch_known_cgi, which * calls the relevant CGI handler function. * @@ -389,27 +562,34 @@ struct http_response *dispatch_cgi(struct client_state *csp) * Should we intercept ? */ - /* Either the host matches CGI_PREFIX_HOST ..*/ - if ( (0 == strcmpic(host, CGI_PREFIX_HOST)) + /* Note: "example.com" and "example.com." are equivalent hostnames. */ + + /* Either the host matches CGI_SITE_1_HOST ..*/ + if ( ( (0 == strcmpic(host, CGI_SITE_1_HOST)) + || (0 == strcmpic(host, CGI_SITE_1_HOST "."))) && (path[0] == '/') ) { /* ..then the path will all be for us. Remove leading '/' */ path++; } - /* Or it's the host part HOME_PAGE_URL, and the path /config/ */ - else if ( (0 == strcmpic(host, HOME_PAGE_URL + 7 )) - && (0 == strncmpic(path,"/config", 7)) ) + /* Or it's the host part CGI_SITE_2_HOST, and the path CGI_SITE_2_PATH */ + else if ( ( (0 == strcmpic(host, CGI_SITE_2_HOST )) + || (0 == strcmpic(host, CGI_SITE_2_HOST ".")) ) + && (0 == strncmpic(path, CGI_SITE_2_PATH, strlen(CGI_SITE_2_PATH))) ) { - /* take everything following "/config" */ - path += 7; + /* take everything following CGI_SITE_2_PATH */ + path += strlen(CGI_SITE_2_PATH); if (*path == '/') { - /* skip the forward slash after "/config" */ + /* skip the forward slash after CGI_SITE_2_PATH */ path++; } else if (*path != '\0') { - /* wierdness: URL is /configXXX, where XXX is some string */ + /* + * wierdness: URL is /configXXX, where XXX is some string + * Do *NOT* intercept. + */ return NULL; } } @@ -498,7 +678,8 @@ static struct http_response *dispatch_known_cgi(struct client_state * csp, csp->ip_addr_str, csp->http->cmd); /* Find and start the right CGI function*/ - for (d = cgi_dispatchers; FOREVER; d++) + d = cgi_dispatchers; + for (;;) { if ((d->name == NULL) || (strcmp(path_copy, d->name) == 0)) { @@ -521,6 +702,7 @@ static struct http_response *dispatch_known_cgi(struct client_state * csp, return cgi_error_memory(); } } + d++; } } @@ -604,13 +786,20 @@ struct http_response *error_response(struct client_state *csp, return cgi_error_memory(); } - err = map(exports, "host-html", 1, html_encode(csp->http->host), 0) - || map(exports, "hostport", 1, csp->http->hostport, 1) - || map(exports, "hostport-html", 1, html_encode(csp->http->hostport), 0) - || map(exports, "path", 1, csp->http->path, 1) - || map(exports, "path-html", 1, html_encode(csp->http->path), 0) - || map(exports, "error", 1, safe_strerror(sys_err), 0) - || map(exports, "host-ip", 1, csp->http->host_ip_addr_str, 1); + err = map(exports, "host", 1, html_encode(csp->http->host), 0); + if (!err) err = map(exports, "hostport", 1, html_encode(csp->http->hostport), 0); + if (!err) err = map(exports, "path", 1, html_encode(csp->http->path), 0); + if (!err) err = map(exports, "error", 1, html_encode_and_free_original(safe_strerror(sys_err)), 0); + if (!err) + { + err = map(exports, "host-ip", 1, html_encode(csp->http->host_ip_addr_str), 0); + if (err) + { + /* Some failures, like "404 no such domain", don't have an IP address. */ + err = map(exports, "host-ip", 1, html_encode(csp->http->host), 0); + } + } + if (err) { @@ -675,7 +864,7 @@ void cgi_init_error_messages(void) "
JunkBuster ran out of memory whilst processing your request.
\r\n" + "JunkBuster ran out of memory while processing your request.
\r\n" "Please contact your proxy administrator, or try again later
\r\n" "\r\n" "