1 const char showargs_rcs[] = "$Id: showargs.c,v 1.19 2001/07/13 14:04:09 oes Exp $";
2 /*********************************************************************
4 * File : $Source: /cvsroot/ijbswa/current/showargs.c,v $
6 * Purpose : Contains various utility routines needed to
7 * generate the show-proxy-args page.
8 * FIXME: Is this really stuff for a separate file?
10 * Copyright : Written by and Copyright (C) 2001 the SourceForge
11 * IJBSWA team. http://ijbswa.sourceforge.net
13 * Based on the Internet Junkbuster originally written
14 * by and Copyright (C) 1997 Anonymous Coders and
15 * Junkbusters Corporation. http://www.junkbusters.com
17 * This program is free software; you can redistribute it
18 * and/or modify it under the terms of the GNU General
19 * Public License as published by the Free Software
20 * Foundation; either version 2 of the License, or (at
21 * your option) any later version.
23 * This program is distributed in the hope that it will
24 * be useful, but WITHOUT ANY WARRANTY; without even the
25 * implied warranty of MERCHANTABILITY or FITNESS FOR A
26 * PARTICULAR PURPOSE. See the GNU General Public
27 * License for more details.
29 * The GNU General Public License should be included with
30 * this file. If not, you can view it at
31 * http://www.gnu.org/copyleft/gpl.html
32 * or write to the Free Software Foundation, Inc., 59
33 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
36 * $Log: showargs.c,v $
38 * Revision 1.18 2001/07/02 02:55:16 iwanttokeepanon
39 * Apended " on some sites" to the HTML generating function `show_defines' (@ line
40 * 392); since "DENY_GZIP" is not *really* necessary for all PCRS functionallity.
42 * Revision 1.17 2001/06/29 21:45:41 oes
43 * Indentation, CRLF->LF, Tab-> Space
45 * Revision 1.16 2001/06/29 13:35:07 oes
48 * - Removed init_proxy_args
49 * - Renamed end_proxy_args(csp) to show_rcs(void)
50 * - Removed logentry from cancelled commit
51 * - Destroyed support for ndef SPLIT_PROXY_ARGS (Ooops)
52 * - Separated the #define list into show_defines()
54 * Revision 1.15 2001/06/09 10:55:28 jongfoster
55 * Changing BUFSIZ ==> BUFFER_SIZE
57 * Revision 1.14 2001/06/07 23:15:40 jongfoster
58 * Removing config->proxy_args_gateways
59 * Missing return statement added to end_proxy_args().
61 * Revision 1.13 2001/06/06 09:37:59 sarantis
62 * Fix misplaced comment start.
64 * Revision 1.12 2001/06/04 10:41:52 swa
65 * show version string of cgi.h and cgi.c
67 * Revision 1.11 2001/06/03 11:03:48 oes
68 * moved stuff to cgi.c
70 * Revision 1.10 2001/05/31 21:36:07 jongfoster
71 * Added RCS for actions.[ch] and list.[ch]
73 * Revision 1.9 2001/05/29 23:11:38 oes
75 * - Moved strsav() from showargs to miscutil
77 * Revision 1.8 2001/05/29 09:50:24 jongfoster
78 * Unified blocklist/imagelist/permissionslist.
79 * File format is still under discussion, but the internal changes
82 * Also modified interceptor behaviour:
83 * - We now intercept all URLs beginning with one of the following
84 * prefixes (and *only* these prefixes):
86 * * http://ijbswa.sf.net/config/
87 * * http://ijbswa.sourceforge.net/config/
88 * - New interceptors "home page" - go to http://i.j.b/ to see it.
89 * - Internal changes so that intercepted and fast redirect pages
90 * are not replaced with an image.
91 * - Interceptors now have the option to send a binary page direct
92 * to the client. (i.e. ijb-send-banner uses this)
93 * - Implemented show-url-info interceptor. (Which is why I needed
94 * the above interceptors changes - a typical URL is
95 * "http://i.j.b/show-url-info?url=www.somesite.com/banner.gif".
96 * The previous mechanism would not have intercepted that, and
97 * if it had been intercepted then it then it would have replaced
100 * Revision 1.7 2001/05/26 00:28:36 jongfoster
101 * Automatic reloading of config file.
102 * Removed obsolete SIGHUP support (Unix) and Reload menu option (Win32).
103 * Most of the global variables have been moved to a new
104 * struct configuration_spec, accessed through csp->config->globalname
105 * Most of the globals remaining are used by the Win32 GUI.
107 * Revision 1.6 2001/05/25 22:32:56 jongfoster
110 * Revision 1.5 2001/05/22 18:54:49 oes
112 * - Enabled filtering banners by size rather than URL
113 * by adding patterns that replace all standard banner
114 * sizes with the "Junkbuster" gif to the re_filterfile
116 * - Enabled filtering WebBugs by providing a pattern
117 * which kills all 1x1 images
119 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
120 * which is selected by the (nonstandard and therefore
121 * capital) letter 'U' in the option string.
122 * It causes the quantifiers to be ungreedy by default.
123 * Appending a ? turns back to greedy (!).
125 * - Added a new interceptor ijb-send-banner, which
126 * sends back the "Junkbuster" gif. Without imagelist or
127 * MSIE detection support, or if tinygif = 1, or the
128 * URL isn't recognized as an imageurl, a lame HTML
129 * explanation is sent instead.
131 * - Added new feature, which permits blocking remote
132 * script redirects and firing back a local redirect
134 * The feature is conditionally compiled, i.e. it
135 * can be disabled with --disable-fast-redirects,
136 * plus it must be activated by a "fast-redirects"
137 * line in the config file, has its own log level
138 * and of course wants to be displayed by show-proxy-args
139 * Note: Boy, all the #ifdefs in 1001 locations and
140 * all the fumbling with configure.in and acconfig.h
141 * were *way* more work than the feature itself :-(
143 * - Because a generic redirect template was needed for
144 * this, tinygif = 3 now uses the same.
146 * - Moved GIFs, and other static HTTP response templates
151 * - Removed some >400 CRs again (Jon, you really worked
154 * Revision 1.4 2001/05/20 16:44:47 jongfoster
155 * Removing last hardcoded JunkBusters.com URLs.
157 * Revision 1.3 2001/05/20 01:21:20 jongfoster
158 * Version 2.9.4 checkin.
159 * - Merged popupfile and cookiefile, and added control over PCRS
160 * filtering, in new "permissionsfile".
161 * - Implemented LOG_LEVEL_FATAL, so that if there is a configuration
162 * file error you now get a message box (in the Win32 GUI) rather
163 * than the program exiting with no explanation.
164 * - Made killpopup use the PCRS MIME-type checking and HTTP-header
166 * - Removed tabs from "config"
167 * - Moved duplicated url parsing code in "loaders.c" to a new funcition.
168 * - Bumped up version number.
170 * Revision 1.2 2001/05/17 23:01:01 oes
171 * - Cleaned CRLF's from the sources and related files
173 * Revision 1.1.1.1 2001/05/15 13:59:03 oes
174 * Initial import of version 2.9.3 source tree
177 *********************************************************************/
183 #include <sys/types.h>
189 #include "showargs.h"
194 #include "miscutil.h"
197 const char showargs_h_rcs[] = SHOWARGS_H_VERSION;
200 /*********************************************************************
204 * Description : Called from `load_config'. It saves each non-empty
205 * and non-comment line from config into a list. This
206 * list is used to create the show-proxy-args page.
209 * 1 : c = config setting that was found
210 * 2 : o = the setting's argument (if any)
214 *********************************************************************/
215 void savearg(char *c, char *o, struct configuration_spec * config)
217 char buf[BUFFER_SIZE];
221 if ( ( NULL != c ) && ( '\0' != *c ) )
223 if ((c = html_encode(c)))
225 sprintf(buf, "<a href=\"" REDIRECT_URL "option#%s\">%s</a> ", c, c);
229 if ( ( NULL != o ) && ( '\0' != *o ) )
231 if ((o = html_encode(o)))
233 if (strncmpic(o, "http://", 7) == 0)
235 strcat(buf, "<a href=\"");
249 strcat(buf, "<br>\n");
251 config->proxy_args = strsav(config->proxy_args, buf);
256 /*********************************************************************
258 * Function : show_rcs
260 * Description : Create a string with the rcs info for all sourcefiles
266 *********************************************************************/
270 char buf[BUFFER_SIZE];
272 /* Instead of including *all* dot h's in the project (thus creating a
273 * tremendous amount of dependencies), I will concede to declaring them
274 * as extern's. This forces the developer to add to this list, but oh well.
277 #define SHOW_RCS(__x) \
279 extern const char __x[]; \
280 sprintf(buf, "%s\n", __x); \
281 b = strsav(b, buf); \
284 /* In alphabetical order */
285 SHOW_RCS(actions_h_rcs)
286 SHOW_RCS(actions_rcs)
290 SHOW_RCS(cygwin_h_rcs)
292 SHOW_RCS(deanimate_h_rcs)
293 SHOW_RCS(deanimate_rcs)
294 SHOW_RCS(encode_h_rcs)
296 SHOW_RCS(errlog_h_rcs)
298 SHOW_RCS(filters_h_rcs)
299 SHOW_RCS(filters_rcs)
300 SHOW_RCS(gateway_h_rcs)
301 SHOW_RCS(gateway_rcs)
303 SHOW_RCS(gnu_regex_h_rcs)
304 SHOW_RCS(gnu_regex_rcs)
305 #endif /* def GNU_REGEX */
306 SHOW_RCS(jbsockets_h_rcs)
307 SHOW_RCS(jbsockets_rcs)
311 SHOW_RCS(killpopup_h_rcs)
312 SHOW_RCS(killpopup_rcs)
313 #endif /* def KILLPOPUPS */
316 SHOW_RCS(loadcfg_h_rcs)
317 SHOW_RCS(loadcfg_rcs)
318 SHOW_RCS(loaders_h_rcs)
319 SHOW_RCS(loaders_rcs)
320 SHOW_RCS(miscutil_h_rcs)
321 SHOW_RCS(miscutil_rcs)
322 SHOW_RCS(parsers_h_rcs)
323 SHOW_RCS(parsers_rcs)
326 SHOW_RCS(project_h_rcs)
327 SHOW_RCS(showargs_h_rcs)
328 SHOW_RCS(showargs_rcs)
329 SHOW_RCS(ssplit_h_rcs)
333 SHOW_RCS(w32log_h_rcs)
335 SHOW_RCS(w32res_h_rcs)
336 SHOW_RCS(w32rulesdlg_h_rcs)
337 SHOW_RCS(w32rulesdlg_rcs)
338 SHOW_RCS(w32taskbar_h_rcs)
339 SHOW_RCS(w32taskbar_rcs)
340 #endif /* ndef _WIN_CONSOLE */
341 SHOW_RCS(win32_h_rcs)
343 #endif /* def _WIN32 */
350 /*********************************************************************
352 * Function : show_defines
354 * Description : Create a string with all conditional #defines used
361 *********************************************************************/
362 char *show_defines(void)
367 b = strsav(b, " <li><code>#define <b>REGEX</b></code> - Support for regular expressions in the path specs.</li>\n");
368 #else /* ifndef REGEX */
369 b = strsav(b, " <li><code>#undef <b>REGEX</b></code> - No support for regular expressions in the path specs.</li>\n");
370 #endif /* ndef REGEX */
373 b = strsav(b, " <li><code>#define <b>PCRE</b></code> - Use PCRE rather than old GNU regex library.</li>\n");
374 #else /* ifndef PCRE */
375 b = strsav(b, " <li><code>#undef <b>PCRE</b></code> - Use old GNU regex library rather than PCRE.</li>\n");
376 #endif /* ndef PCRE */
379 b = strsav(b, " <li><code>#define <b>TOGGLE</b></code> - Allow JunkBuster to be \"disabled\" so it is just a normal non-blocking non-anonymizing proxy.</li>\n");
380 #else /* ifndef TOGGLE */
381 b = strsav(b, " <li><code>#undef <b>TOGGLE</b></code> - Do not allow JunkBuster to be \"disabled\" so it is just a normal non-blocking non-anonymizing proxy.</li>\n");
382 #endif /* ndef TOGGLE */
385 b = strsav(b, " <li><code>#define <b>FORCE_LOAD</b></code> - Enables bypassing filtering for a single page using the prefix \"" FORCE_PREFIX "\".</li>\n");
386 #else /* ifndef FORCE_LOAD */
387 b = strsav(b, " <li><code>#undef <b>FORCE_LOAD</b></code> - Disables bypassing filtering for a single page.</li>\n");
388 #endif /* ndef FORCE_LOAD */
391 b = strsav(b, " <li><code>#define <b>DENY_GZIP</b></code> - Prevents requests from being compressed - required for PCRS on some sites.</li>\n");
392 #else /* ifndef DENY_GZIP */
393 b = strsav(b, " <li><code>#undef <b>DENY_GZIP</b></code> - Allows requests to be compressed if the browser and server support it.</li>\n");
394 #endif /* ndef DENY_GZIP */
397 b = strsav(b, " <li><code>#define <b>STATISTICS</b></code> - Enables statistics function.</li>\n");
398 #else /* ifndef STATISTICS */
399 b = strsav(b, " <li><code>#undef <b>STATISTICS</b></code> - Disables statistics function.</li>\n");
400 #endif /* ndef STATISTICS */
402 #ifdef SPLIT_PROXY_ARGS
403 b = strsav(b, " <li><code>#define <b>SPLIT_PROXY_ARGS</b></code> - Split this page up by placing the configuration files on separate pages.</li>\n");
404 #else /* ifndef SPLIT_PROXY_ARGS */
405 b = strsav(b, " <li><code>#undef <b>SPLIT_PROXY_ARGS</b></code> - This page contains the text of the configuration files, they are not split onto separate pages.</li>\n");
406 #endif /* ndef SPLIT_PROXY_ARGS */
409 b = strsav(b, " <li><code>#define <b>KILLPOPUPS</b></code> - Enables killing JavaScript popups.</li>\n");
410 #else /* ifndef KILLPOPUPS */
411 b = strsav(b, " <li><code>#undef <b>KILLPOPUPS</b></code> - Disables killing JavaScript popups.</li>\n");
412 #endif /* ndef KILLPOPUPS */
415 b = strsav(b, " <li><code>#define <b>WEBDAV</b></code> - Enables support for webDAV - e.g. stops Microsoft Outlook from accessing HotMail e-mail.</li>\n");
416 #else /* ifndef WEBDAV */
417 b = strsav(b, " <li><code>#undef <b>WEBDAV</b></code> - Disables support for webDAV - e.g. so Microsoft Outlook can access HotMail e-mail.</li>\n");
418 #endif /* ndef WEBDAV */
420 #ifdef DETECT_MSIE_IMAGES
421 b = strsav(b, " <li><code>#define <b>DETECT_MSIE_IMAGES</b></code> - Enables detecting image requests automatically for MSIE.</li>\n");
422 #else /* ifndef DETECT_MSIE_IMAGES */
423 b = strsav(b, " <li><code>#undef <b>DETECT_MSIE_IMAGES</b></code> - Disables detecting image requests automatically for MSIE.</li>\n");
424 #endif /* ndef DETECT_MSIE_IMAGES */
426 #ifdef IMAGE_BLOCKING
427 b = strsav(b, " <li><code>#define <b>IMAGE_BLOCKING</b></code> - Enables sending \"blocked\" images instead of HTML.</li>\n");
428 #else /* ifndef IMAGE_BLOCKING */
429 b = strsav(b, " <li><code>#undef <b>IMAGE_BLOCKING</b></code> - Disables sending \"blocked\" images instead of HTML.</li>\n");
430 #endif /* ndef IMAGE_BLOCKING */
433 b = strsav(b, " <li><code>#define <b>ACL_FILES</b></code> - Enables the use of ACL files to control access to the proxy by IP address.</li>\n");
434 #else /* ifndef ACL_FILES */
435 b = strsav(b, " <li><code>#undef <b>ACL_FILES</b></code> - Disables the use of ACL files to control access to the proxy by IP address.</li>\n");
436 #endif /* ndef ACL_FILES */
439 b = strsav(b, " <li><code>#define <b>TRUST_FILES</b></code> - Enables the use of trust files.</li>\n");
440 #else /* ifndef TRUST_FILES */
441 b = strsav(b, " <li><code>#undef <b>TRUST_FILES</b></code> - Disables the use of trust files.</li>\n");
442 #endif /* ndef TRUST_FILES */
445 b = strsav(b, " <li><code>#define <b>JAR_FILES</b></code> - Enables the use of jar files to capture cookies.</li>\n");
446 #else /* ifndef JAR_FILES */
447 b = strsav(b, " <li><code>#undef <b>JAR_FILES</b></code> - Disables the use of jar files to capture cookies.</li>\n");
448 #endif /* ndef JAR_FILES */
450 #ifdef FAST_REDIRECTS
451 b = strsav(b, " <li><code>#define <b>FAST_REDIRECTS</b></code> - Enables intercepting remote script redirects.</li>\n");
452 #else /* ifndef FAST_REDIRECTS */
453 b = strsav(b, " <li><code>#undef <b>FAST_REDIRECTS</b></code> - Disables intercepting remote script redirects.</li>\n");
454 #endif /* ndef FAST_REDIRECTS */