1 const char showargs_rcs[] = "$Id: showargs.c,v 1.15 2001/06/09 10:55:28 jongfoster 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 $
37 * Revision 1.15 2001/06/09 10:55:28 jongfoster
38 * Changing BUFSIZ ==> BUFFER_SIZE
40 * Revision 1.14 2001/06/07 23:15:40 jongfoster
41 * Removing config->proxy_args_gateways
42 * Missing return statement added to end_proxy_args().
44 * Revision 1.13 2001/06/06 09:37:59 sarantis
45 * Fix misplaced comment start.
47 * Revision 1.12 2001/06/04 10:41:52 swa
48 * show version string of cgi.h and cgi.c
50 * Revision 1.11 2001/06/03 11:03:48 oes
51 * moved stuff to cgi.c
53 * Revision 1.10 2001/05/31 21:36:07 jongfoster
54 * Added RCS for actions.[ch] and list.[ch]
56 * Revision 1.9 2001/05/29 23:11:38 oes
58 * - Moved strsav() from showargs to miscutil
60 * Revision 1.8 2001/05/29 09:50:24 jongfoster
61 * Unified blocklist/imagelist/permissionslist.
62 * File format is still under discussion, but the internal changes
65 * Also modified interceptor behaviour:
66 * - We now intercept all URLs beginning with one of the following
67 * prefixes (and *only* these prefixes):
69 * * http://ijbswa.sf.net/config/
70 * * http://ijbswa.sourceforge.net/config/
71 * - New interceptors "home page" - go to http://i.j.b/ to see it.
72 * - Internal changes so that intercepted and fast redirect pages
73 * are not replaced with an image.
74 * - Interceptors now have the option to send a binary page direct
75 * to the client. (i.e. ijb-send-banner uses this)
76 * - Implemented show-url-info interceptor. (Which is why I needed
77 * the above interceptors changes - a typical URL is
78 * "http://i.j.b/show-url-info?url=www.somesite.com/banner.gif".
79 * The previous mechanism would not have intercepted that, and
80 * if it had been intercepted then it then it would have replaced
83 * Revision 1.7 2001/05/26 00:28:36 jongfoster
84 * Automatic reloading of config file.
85 * Removed obsolete SIGHUP support (Unix) and Reload menu option (Win32).
86 * Most of the global variables have been moved to a new
87 * struct configuration_spec, accessed through csp->config->globalname
88 * Most of the globals remaining are used by the Win32 GUI.
90 * Revision 1.6 2001/05/25 22:32:56 jongfoster
93 * Revision 1.5 2001/05/22 18:54:49 oes
95 * - Enabled filtering banners by size rather than URL
96 * by adding patterns that replace all standard banner
97 * sizes with the "Junkbuster" gif to the re_filterfile
99 * - Enabled filtering WebBugs by providing a pattern
100 * which kills all 1x1 images
102 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
103 * which is selected by the (nonstandard and therefore
104 * capital) letter 'U' in the option string.
105 * It causes the quantifiers to be ungreedy by default.
106 * Appending a ? turns back to greedy (!).
108 * - Added a new interceptor ijb-send-banner, which
109 * sends back the "Junkbuster" gif. Without imagelist or
110 * MSIE detection support, or if tinygif = 1, or the
111 * URL isn't recognized as an imageurl, a lame HTML
112 * explanation is sent instead.
114 * - Added new feature, which permits blocking remote
115 * script redirects and firing back a local redirect
117 * The feature is conditionally compiled, i.e. it
118 * can be disabled with --disable-fast-redirects,
119 * plus it must be activated by a "fast-redirects"
120 * line in the config file, has its own log level
121 * and of course wants to be displayed by show-proxy-args
122 * Note: Boy, all the #ifdefs in 1001 locations and
123 * all the fumbling with configure.in and acconfig.h
124 * were *way* more work than the feature itself :-(
126 * - Because a generic redirect template was needed for
127 * this, tinygif = 3 now uses the same.
129 * - Moved GIFs, and other static HTTP response templates
134 * - Removed some >400 CRs again (Jon, you really worked
137 * Revision 1.4 2001/05/20 16:44:47 jongfoster
138 * Removing last hardcoded JunkBusters.com URLs.
140 * Revision 1.3 2001/05/20 01:21:20 jongfoster
141 * Version 2.9.4 checkin.
142 * - Merged popupfile and cookiefile, and added control over PCRS
143 * filtering, in new "permissionsfile".
144 * - Implemented LOG_LEVEL_FATAL, so that if there is a configuration
145 * file error you now get a message box (in the Win32 GUI) rather
146 * than the program exiting with no explanation.
147 * - Made killpopup use the PCRS MIME-type checking and HTTP-header
149 * - Removed tabs from "config"
150 * - Moved duplicated url parsing code in "loaders.c" to a new funcition.
151 * - Bumped up version number.
153 * Revision 1.2 2001/05/17 23:01:01 oes
154 * - Cleaned CRLF's from the sources and related files
156 * Revision 1.1.1.1 2001/05/15 13:59:03 oes
157 * Initial import of version 2.9.3 source tree
160 *********************************************************************/
166 #include <sys/types.h>
172 #include "showargs.h"
177 #include "miscutil.h"
180 const char showargs_h_rcs[] = SHOWARGS_H_VERSION;
183 /*********************************************************************
187 * Description : Called from `load_config'. It saves each non-empty
188 * and non-comment line from config into a list. This
189 * list is used to create the show-proxy-args page.
192 * 1 : c = config setting that was found
193 * 2 : o = the setting's argument (if any)
197 *********************************************************************/
198 void savearg(char *c, char *o, struct configuration_spec * config)
200 char buf[BUFFER_SIZE];
204 if ( ( NULL != c ) && ( '\0' != *c ) )
206 if ((c = html_encode(c)))
208 sprintf(buf, "<a href=\"" REDIRECT_URL "option#%s\">%s</a> ", c, c);
212 if ( ( NULL != o ) && ( '\0' != *o ) )
214 if ((o = html_encode(o)))
216 if (strncmpic(o, "http://", 7) == 0)
218 strcat(buf, "<a href=\"");
232 strcat(buf, "<br>\n");
234 config->proxy_args = strsav(config->proxy_args, buf);
239 /*********************************************************************
241 * Function : show_rcs
243 * Description : Create a string with the rcs info for all sourcefiles
249 *********************************************************************/
253 char buf[BUFFER_SIZE];
255 /* Instead of including *all* dot h's in the project (thus creating a
256 * tremendous amount of dependencies), I will concede to declaring them
257 * as extern's. This forces the developer to add to this list, but oh well.
260 #define SHOW_RCS(__x) \
262 extern const char __x[]; \
263 sprintf(buf, "%s\n", __x); \
264 b = strsav(b, buf); \
267 /* In alphabetical order */
268 SHOW_RCS(actions_h_rcs)
269 SHOW_RCS(actions_rcs)
273 SHOW_RCS(cygwin_h_rcs)
275 SHOW_RCS(encode_h_rcs)
277 SHOW_RCS(errlog_h_rcs)
279 SHOW_RCS(filters_h_rcs)
280 SHOW_RCS(filters_rcs)
281 SHOW_RCS(gateway_h_rcs)
282 SHOW_RCS(gateway_rcs)
284 SHOW_RCS(gnu_regex_h_rcs)
285 SHOW_RCS(gnu_regex_rcs)
286 #endif /* def GNU_REGEX */
287 SHOW_RCS(jbsockets_h_rcs)
288 SHOW_RCS(jbsockets_rcs)
292 SHOW_RCS(killpopup_h_rcs)
293 SHOW_RCS(killpopup_rcs)
294 #endif /* def KILLPOPUPS */
297 SHOW_RCS(loadcfg_h_rcs)
298 SHOW_RCS(loadcfg_rcs)
299 SHOW_RCS(loaders_h_rcs)
300 SHOW_RCS(loaders_rcs)
301 SHOW_RCS(miscutil_h_rcs)
302 SHOW_RCS(miscutil_rcs)
303 SHOW_RCS(parsers_h_rcs)
304 SHOW_RCS(parsers_rcs)
308 #endif /* def PCRS */
309 SHOW_RCS(project_h_rcs)
310 SHOW_RCS(showargs_h_rcs)
311 SHOW_RCS(showargs_rcs)
312 SHOW_RCS(ssplit_h_rcs)
316 SHOW_RCS(w32log_h_rcs)
318 SHOW_RCS(w32res_h_rcs)
319 SHOW_RCS(w32rulesdlg_h_rcs)
320 SHOW_RCS(w32rulesdlg_rcs)
321 SHOW_RCS(w32taskbar_h_rcs)
322 SHOW_RCS(w32taskbar_rcs)
323 #endif /* ndef _WIN_CONSOLE */
324 SHOW_RCS(win32_h_rcs)
326 #endif /* def _WIN32 */
333 /*********************************************************************
335 * Function : show_defines
337 * Description : Create a string with all conditional #defines used
344 *********************************************************************/
345 char *show_defines(void)
350 b = strsav(b, " <li><code>#define <b>REGEX</b></code> - Support for regular expressions in the path specs.</li>\n");
351 #else /* ifndef REGEX */
352 b = strsav(b, " <li><code>#undef <b>REGEX</b></code> - No support for regular expressions in the path specs.</li>\n");
353 #endif /* ndef REGEX */
356 b = strsav(b, " <li><code>#define <b>PCRE</b></code> - Use PCRE rather than old GNU regex library.</li>\n");
357 #else /* ifndef PCRE */
358 b = strsav(b, " <li><code>#undef <b>PCRE</b></code> - Use old GNU regex library rather than PCRE.</li>\n");
359 #endif /* ndef PCRE */
362 b = strsav(b, " <li><code>#define <b>PCRS</b></code> - Enables arbitrary content modification regexps.</li>\n");
363 #else /* ifndef PCRS */
364 b = strsav(b, " <li><code>#undef <b>PCRS</b></code> - Disables arbitrary content modification regexps.</li>\n");
365 #endif /* ndef PCRS */
368 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");
369 #else /* ifndef TOGGLE */
370 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");
371 #endif /* ndef TOGGLE */
374 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");
375 #else /* ifndef FORCE_LOAD */
376 b = strsav(b, " <li><code>#undef <b>FORCE_LOAD</b></code> - Disables bypassing filtering for a single page.</li>\n");
377 #endif /* ndef FORCE_LOAD */
380 b = strsav(b, " <li><code>#define <b>DENY_GZIP</b></code> - Prevents requests from being compressed - required for PCRS.</li>\n");
381 #else /* ifndef DENY_GZIP */
382 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");
383 #endif /* ndef DENY_GZIP */
386 b = strsav(b, " <li><code>#define <b>STATISTICS</b></code> - Enables statistics function.</li>\n");
387 #else /* ifndef STATISTICS */
388 b = strsav(b, " <li><code>#undef <b>STATISTICS</b></code> - Disables statistics function.</li>\n");
389 #endif /* ndef STATISTICS */
391 #ifdef SPLIT_PROXY_ARGS
392 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");
393 #else /* ifndef SPLIT_PROXY_ARGS */
394 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");
395 #endif /* ndef SPLIT_PROXY_ARGS */
398 b = strsav(b, " <li><code>#define <b>KILLPOPUPS</b></code> - Enables killing JavaScript popups.</li>\n");
399 #else /* ifndef KILLPOPUPS */
400 b = strsav(b, " <li><code>#undef <b>KILLPOPUPS</b></code> - Disables killing JavaScript popups.</li>\n");
401 #endif /* ndef KILLPOPUPS */
404 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");
405 #else /* ifndef WEBDAV */
406 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");
407 #endif /* ndef WEBDAV */
409 #ifdef DETECT_MSIE_IMAGES
410 b = strsav(b, " <li><code>#define <b>DETECT_MSIE_IMAGES</b></code> - Enables detecting image requests automatically for MSIE.</li>\n");
411 #else /* ifndef DETECT_MSIE_IMAGES */
412 b = strsav(b, " <li><code>#undef <b>DETECT_MSIE_IMAGES</b></code> - Disables detecting image requests automatically for MSIE.</li>\n");
413 #endif /* ndef DETECT_MSIE_IMAGES */
415 #ifdef IMAGE_BLOCKING
416 b = strsav(b, " <li><code>#define <b>IMAGE_BLOCKING</b></code> - Enables sending \"blocked\" images instead of HTML.</li>\n");
417 #else /* ifndef IMAGE_BLOCKING */
418 b = strsav(b, " <li><code>#undef <b>IMAGE_BLOCKING</b></code> - Disables sending \"blocked\" images instead of HTML.</li>\n");
419 #endif /* ndef IMAGE_BLOCKING */
422 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");
423 #else /* ifndef ACL_FILES */
424 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");
425 #endif /* ndef ACL_FILES */
428 b = strsav(b, " <li><code>#define <b>TRUST_FILES</b></code> - Enables the use of trust files.</li>\n");
429 #else /* ifndef TRUST_FILES */
430 b = strsav(b, " <li><code>#undef <b>TRUST_FILES</b></code> - Disables the use of trust files.</li>\n");
431 #endif /* ndef TRUST_FILES */
434 b = strsav(b, " <li><code>#define <b>JAR_FILES</b></code> - Enables the use of jar files to capture cookies.</li>\n");
435 #else /* ifndef JAR_FILES */
436 b = strsav(b, " <li><code>#undef <b>JAR_FILES</b></code> - Disables the use of jar files to capture cookies.</li>\n");
437 #endif /* ndef JAR_FILES */
439 #ifdef FAST_REDIRECTS
440 b = strsav(b, " <li><code>#define <b>FAST_REDIRECTS</b></code> - Enables intercepting remote script redirects.</li>\n");
441 #else /* ifndef FAST_REDIRECTS */
442 b = strsav(b, " <li><code>#undef <b>FAST_REDIRECTS</b></code> - Disables intercepting remote script redirects.</li>\n");
443 #endif /* ndef FAST_REDIRECTS */