1 const char showargs_rcs[] = "$Id: showargs.c,v 1.16 2001/06/29 13:35:07 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 $
37 * Revision 1.16 2001/06/29 13:35:07 oes
40 * - Removed init_proxy_args
41 * - Renamed end_proxy_args(csp) to show_rcs(void)
42 * - Removed logentry from cancelled commit
43 * - Destroyed support for ndef SPLIT_PROXY_ARGS (Ooops)
44 * - Separated the #define list into show_defines()
46 * Revision 1.15 2001/06/09 10:55:28 jongfoster
47 * Changing BUFSIZ ==> BUFFER_SIZE
49 * Revision 1.14 2001/06/07 23:15:40 jongfoster
50 * Removing config->proxy_args_gateways
51 * Missing return statement added to end_proxy_args().
53 * Revision 1.13 2001/06/06 09:37:59 sarantis
54 * Fix misplaced comment start.
56 * Revision 1.12 2001/06/04 10:41:52 swa
57 * show version string of cgi.h and cgi.c
59 * Revision 1.11 2001/06/03 11:03:48 oes
60 * moved stuff to cgi.c
62 * Revision 1.10 2001/05/31 21:36:07 jongfoster
63 * Added RCS for actions.[ch] and list.[ch]
65 * Revision 1.9 2001/05/29 23:11:38 oes
67 * - Moved strsav() from showargs to miscutil
69 * Revision 1.8 2001/05/29 09:50:24 jongfoster
70 * Unified blocklist/imagelist/permissionslist.
71 * File format is still under discussion, but the internal changes
74 * Also modified interceptor behaviour:
75 * - We now intercept all URLs beginning with one of the following
76 * prefixes (and *only* these prefixes):
78 * * http://ijbswa.sf.net/config/
79 * * http://ijbswa.sourceforge.net/config/
80 * - New interceptors "home page" - go to http://i.j.b/ to see it.
81 * - Internal changes so that intercepted and fast redirect pages
82 * are not replaced with an image.
83 * - Interceptors now have the option to send a binary page direct
84 * to the client. (i.e. ijb-send-banner uses this)
85 * - Implemented show-url-info interceptor. (Which is why I needed
86 * the above interceptors changes - a typical URL is
87 * "http://i.j.b/show-url-info?url=www.somesite.com/banner.gif".
88 * The previous mechanism would not have intercepted that, and
89 * if it had been intercepted then it then it would have replaced
92 * Revision 1.7 2001/05/26 00:28:36 jongfoster
93 * Automatic reloading of config file.
94 * Removed obsolete SIGHUP support (Unix) and Reload menu option (Win32).
95 * Most of the global variables have been moved to a new
96 * struct configuration_spec, accessed through csp->config->globalname
97 * Most of the globals remaining are used by the Win32 GUI.
99 * Revision 1.6 2001/05/25 22:32:56 jongfoster
102 * Revision 1.5 2001/05/22 18:54:49 oes
104 * - Enabled filtering banners by size rather than URL
105 * by adding patterns that replace all standard banner
106 * sizes with the "Junkbuster" gif to the re_filterfile
108 * - Enabled filtering WebBugs by providing a pattern
109 * which kills all 1x1 images
111 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
112 * which is selected by the (nonstandard and therefore
113 * capital) letter 'U' in the option string.
114 * It causes the quantifiers to be ungreedy by default.
115 * Appending a ? turns back to greedy (!).
117 * - Added a new interceptor ijb-send-banner, which
118 * sends back the "Junkbuster" gif. Without imagelist or
119 * MSIE detection support, or if tinygif = 1, or the
120 * URL isn't recognized as an imageurl, a lame HTML
121 * explanation is sent instead.
123 * - Added new feature, which permits blocking remote
124 * script redirects and firing back a local redirect
126 * The feature is conditionally compiled, i.e. it
127 * can be disabled with --disable-fast-redirects,
128 * plus it must be activated by a "fast-redirects"
129 * line in the config file, has its own log level
130 * and of course wants to be displayed by show-proxy-args
131 * Note: Boy, all the #ifdefs in 1001 locations and
132 * all the fumbling with configure.in and acconfig.h
133 * were *way* more work than the feature itself :-(
135 * - Because a generic redirect template was needed for
136 * this, tinygif = 3 now uses the same.
138 * - Moved GIFs, and other static HTTP response templates
143 * - Removed some >400 CRs again (Jon, you really worked
146 * Revision 1.4 2001/05/20 16:44:47 jongfoster
147 * Removing last hardcoded JunkBusters.com URLs.
149 * Revision 1.3 2001/05/20 01:21:20 jongfoster
150 * Version 2.9.4 checkin.
151 * - Merged popupfile and cookiefile, and added control over PCRS
152 * filtering, in new "permissionsfile".
153 * - Implemented LOG_LEVEL_FATAL, so that if there is a configuration
154 * file error you now get a message box (in the Win32 GUI) rather
155 * than the program exiting with no explanation.
156 * - Made killpopup use the PCRS MIME-type checking and HTTP-header
158 * - Removed tabs from "config"
159 * - Moved duplicated url parsing code in "loaders.c" to a new funcition.
160 * - Bumped up version number.
162 * Revision 1.2 2001/05/17 23:01:01 oes
163 * - Cleaned CRLF's from the sources and related files
165 * Revision 1.1.1.1 2001/05/15 13:59:03 oes
166 * Initial import of version 2.9.3 source tree
169 *********************************************************************/
175 #include <sys/types.h>
181 #include "showargs.h"
186 #include "miscutil.h"
189 const char showargs_h_rcs[] = SHOWARGS_H_VERSION;
192 /*********************************************************************
196 * Description : Called from `load_config'. It saves each non-empty
197 * and non-comment line from config into a list. This
198 * list is used to create the show-proxy-args page.
201 * 1 : c = config setting that was found
202 * 2 : o = the setting's argument (if any)
206 *********************************************************************/
207 void savearg(char *c, char *o, struct configuration_spec * config)
209 char buf[BUFFER_SIZE];
213 if ( ( NULL != c ) && ( '\0' != *c ) )
215 if ((c = html_encode(c)))
217 sprintf(buf, "<a href=\"" REDIRECT_URL "option#%s\">%s</a> ", c, c);
221 if ( ( NULL != o ) && ( '\0' != *o ) )
223 if ((o = html_encode(o)))
225 if (strncmpic(o, "http://", 7) == 0)
227 strcat(buf, "<a href=\"");
241 strcat(buf, "<br>\n");
243 config->proxy_args = strsav(config->proxy_args, buf);
248 /*********************************************************************
250 * Function : show_rcs
252 * Description : Create a string with the rcs info for all sourcefiles
258 *********************************************************************/
262 char buf[BUFFER_SIZE];
264 /* Instead of including *all* dot h's in the project (thus creating a
265 * tremendous amount of dependencies), I will concede to declaring them
266 * as extern's. This forces the developer to add to this list, but oh well.
269 #define SHOW_RCS(__x) \
271 extern const char __x[]; \
272 sprintf(buf, "%s\n", __x); \
273 b = strsav(b, buf); \
276 /* In alphabetical order */
277 SHOW_RCS(actions_h_rcs)
278 SHOW_RCS(actions_rcs)
282 SHOW_RCS(cygwin_h_rcs)
284 SHOW_RCS(encode_h_rcs)
286 SHOW_RCS(errlog_h_rcs)
288 SHOW_RCS(filters_h_rcs)
289 SHOW_RCS(filters_rcs)
290 SHOW_RCS(gateway_h_rcs)
291 SHOW_RCS(gateway_rcs)
293 SHOW_RCS(gnu_regex_h_rcs)
294 SHOW_RCS(gnu_regex_rcs)
295 #endif /* def GNU_REGEX */
296 SHOW_RCS(jbsockets_h_rcs)
297 SHOW_RCS(jbsockets_rcs)
301 SHOW_RCS(killpopup_h_rcs)
302 SHOW_RCS(killpopup_rcs)
303 #endif /* def KILLPOPUPS */
306 SHOW_RCS(loadcfg_h_rcs)
307 SHOW_RCS(loadcfg_rcs)
308 SHOW_RCS(loaders_h_rcs)
309 SHOW_RCS(loaders_rcs)
310 SHOW_RCS(miscutil_h_rcs)
311 SHOW_RCS(miscutil_rcs)
312 SHOW_RCS(parsers_h_rcs)
313 SHOW_RCS(parsers_rcs)
317 #endif /* def PCRS */
318 SHOW_RCS(project_h_rcs)
319 SHOW_RCS(showargs_h_rcs)
320 SHOW_RCS(showargs_rcs)
321 SHOW_RCS(ssplit_h_rcs)
325 SHOW_RCS(w32log_h_rcs)
327 SHOW_RCS(w32res_h_rcs)
328 SHOW_RCS(w32rulesdlg_h_rcs)
329 SHOW_RCS(w32rulesdlg_rcs)
330 SHOW_RCS(w32taskbar_h_rcs)
331 SHOW_RCS(w32taskbar_rcs)
332 #endif /* ndef _WIN_CONSOLE */
333 SHOW_RCS(win32_h_rcs)
335 #endif /* def _WIN32 */
342 /*********************************************************************
344 * Function : show_defines
346 * Description : Create a string with all conditional #defines used
353 *********************************************************************/
354 char *show_defines(void)
359 b = strsav(b, " <li><code>#define <b>REGEX</b></code> - Support for regular expressions in the path specs.</li>\n");
360 #else /* ifndef REGEX */
361 b = strsav(b, " <li><code>#undef <b>REGEX</b></code> - No support for regular expressions in the path specs.</li>\n");
362 #endif /* ndef REGEX */
365 b = strsav(b, " <li><code>#define <b>PCRE</b></code> - Use PCRE rather than old GNU regex library.</li>\n");
366 #else /* ifndef PCRE */
367 b = strsav(b, " <li><code>#undef <b>PCRE</b></code> - Use old GNU regex library rather than PCRE.</li>\n");
368 #endif /* ndef PCRE */
371 b = strsav(b, " <li><code>#define <b>PCRS</b></code> - Enables arbitrary content modification regexps.</li>\n");
372 #else /* ifndef PCRS */
373 b = strsav(b, " <li><code>#undef <b>PCRS</b></code> - Disables arbitrary content modification regexps.</li>\n");
374 #endif /* ndef PCRS */
377 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");
378 #else /* ifndef TOGGLE */
379 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");
380 #endif /* ndef TOGGLE */
383 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");
384 #else /* ifndef FORCE_LOAD */
385 b = strsav(b, " <li><code>#undef <b>FORCE_LOAD</b></code> - Disables bypassing filtering for a single page.</li>\n");
386 #endif /* ndef FORCE_LOAD */
389 b = strsav(b, " <li><code>#define <b>DENY_GZIP</b></code> - Prevents requests from being compressed - required for PCRS.</li>\n");
390 #else /* ifndef DENY_GZIP */
391 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");
392 #endif /* ndef DENY_GZIP */
395 b = strsav(b, " <li><code>#define <b>STATISTICS</b></code> - Enables statistics function.</li>\n");
396 #else /* ifndef STATISTICS */
397 b = strsav(b, " <li><code>#undef <b>STATISTICS</b></code> - Disables statistics function.</li>\n");
398 #endif /* ndef STATISTICS */
400 #ifdef SPLIT_PROXY_ARGS
401 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");
402 #else /* ifndef SPLIT_PROXY_ARGS */
403 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");
404 #endif /* ndef SPLIT_PROXY_ARGS */
407 b = strsav(b, " <li><code>#define <b>KILLPOPUPS</b></code> - Enables killing JavaScript popups.</li>\n");
408 #else /* ifndef KILLPOPUPS */
409 b = strsav(b, " <li><code>#undef <b>KILLPOPUPS</b></code> - Disables killing JavaScript popups.</li>\n");
410 #endif /* ndef KILLPOPUPS */
413 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");
414 #else /* ifndef WEBDAV */
415 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");
416 #endif /* ndef WEBDAV */
418 #ifdef DETECT_MSIE_IMAGES
419 b = strsav(b, " <li><code>#define <b>DETECT_MSIE_IMAGES</b></code> - Enables detecting image requests automatically for MSIE.</li>\n");
420 #else /* ifndef DETECT_MSIE_IMAGES */
421 b = strsav(b, " <li><code>#undef <b>DETECT_MSIE_IMAGES</b></code> - Disables detecting image requests automatically for MSIE.</li>\n");
422 #endif /* ndef DETECT_MSIE_IMAGES */
424 #ifdef IMAGE_BLOCKING
425 b = strsav(b, " <li><code>#define <b>IMAGE_BLOCKING</b></code> - Enables sending \"blocked\" images instead of HTML.</li>\n");
426 #else /* ifndef IMAGE_BLOCKING */
427 b = strsav(b, " <li><code>#undef <b>IMAGE_BLOCKING</b></code> - Disables sending \"blocked\" images instead of HTML.</li>\n");
428 #endif /* ndef IMAGE_BLOCKING */
431 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");
432 #else /* ifndef ACL_FILES */
433 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");
434 #endif /* ndef ACL_FILES */
437 b = strsav(b, " <li><code>#define <b>TRUST_FILES</b></code> - Enables the use of trust files.</li>\n");
438 #else /* ifndef TRUST_FILES */
439 b = strsav(b, " <li><code>#undef <b>TRUST_FILES</b></code> - Disables the use of trust files.</li>\n");
440 #endif /* ndef TRUST_FILES */
443 b = strsav(b, " <li><code>#define <b>JAR_FILES</b></code> - Enables the use of jar files to capture cookies.</li>\n");
444 #else /* ifndef JAR_FILES */
445 b = strsav(b, " <li><code>#undef <b>JAR_FILES</b></code> - Disables the use of jar files to capture cookies.</li>\n");
446 #endif /* ndef JAR_FILES */
448 #ifdef FAST_REDIRECTS
449 b = strsav(b, " <li><code>#define <b>FAST_REDIRECTS</b></code> - Enables intercepting remote script redirects.</li>\n");
450 #else /* ifndef FAST_REDIRECTS */
451 b = strsav(b, " <li><code>#undef <b>FAST_REDIRECTS</b></code> - Disables intercepting remote script redirects.</li>\n");
452 #endif /* ndef FAST_REDIRECTS */