1 #ifndef PROJECT_H_INCLUDED
2 #define PROJECT_H_INCLUDED
3 #define PROJECT_H_VERSION "$Id: project.h,v 1.44 2001/12/30 14:07:32 steudten Exp $"
4 /*********************************************************************
6 * File : $Source: /cvsroot/ijbswa/current/project.h,v $
8 * Purpose : Defines data structures which are widely used in the
9 * project. Does not define any variables or functions
10 * (though it does declare some macros).
12 * Copyright : Written by and Copyright (C) 2001 the SourceForge
13 * IJBSWA team. http://ijbswa.sourceforge.net
15 * Based on the Internet Junkbuster originally written
16 * by and Copyright (C) 1997 Anonymous Coders and
17 * Junkbusters Corporation. http://www.junkbusters.com
19 * This program is free software; you can redistribute it
20 * and/or modify it under the terms of the GNU General
21 * Public License as published by the Free Software
22 * Foundation; either version 2 of the License, or (at
23 * your option) any later version.
25 * This program is distributed in the hope that it will
26 * be useful, but WITHOUT ANY WARRANTY; without even the
27 * implied warranty of MERCHANTABILITY or FITNESS FOR A
28 * PARTICULAR PURPOSE. See the GNU General Public
29 * License for more details.
31 * The GNU General Public License should be included with
32 * this file. If not, you can view it at
33 * http://www.gnu.org/copyleft/gpl.html
34 * or write to the Free Software Foundation, Inc., 59
35 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
39 * Revision 1.44 2001/12/30 14:07:32 steudten
40 * - Add signal handling (unix)
41 * - Add SIGHUP handler (unix)
42 * - Add creation of pidfile (unix)
43 * - Add action 'top' in rc file (RH)
44 * - Add entry 'SIGNALS' to manpage
45 * - Add exit message to logfile (unix)
47 * Revision 1.43 2001/11/22 21:57:51 jongfoster
48 * Making action_spec->flags into an unsigned long rather than just an
50 * Adding ACTION_NO_COOKIE_KEEP
52 * Revision 1.42 2001/11/05 21:42:41 steudten
53 * Include DBG() macro.
55 * Revision 1.41 2001/10/28 19:12:06 jongfoster
56 * Adding ijb_toupper()
58 * Revision 1.40 2001/10/26 17:40:47 oes
59 * Moved ijb_isspace and ijb_tolower to project.h
60 * Removed http->user_agent, csp->referrer and csp->accept_types
62 * Revision 1.39 2001/10/25 03:45:02 david__schmidt
63 * Adding a (void*) cast to freez() because Visual Age C++ won't expand the
64 * macro when called with a cast; so moving the cast to the macro def'n
65 * seems to both eliminate compiler warnings (on darwin and OS/2, anyway) and
66 * doesn't make macro expansion complain. Hope this works for everyone else
69 * Revision 1.38 2001/10/23 21:19:04 jongfoster
70 * New error-handling support: jb_err type and JB_ERR_xxx constants
71 * CGI functions now return a jb_err, and their parameters map is const.
72 * Support for RUNTIME_FEATUREs to enable/disable config editor
73 * Adding a few comments
75 * Revision 1.37 2001/10/14 22:14:01 jongfoster
76 * Removing name_length field from struct cgi_dispatcher, as this is
77 * now calculated at runtime from the "name" field.
79 * Revision 1.36 2001/10/10 16:45:15 oes
80 * Added LIMIT_CONNECT action and string
81 * Fixed HTTP message line termination
82 * Added CFORBIDDEN HTTP message
84 * Revision 1.35 2001/10/07 18:06:43 oes
85 * Added status member to struct http_request
87 * Revision 1.34 2001/10/07 15:45:25 oes
88 * Added url member to struct http_request and commented all
93 * Added ACTION_DOWNGRADE and ACTION_NO_COMPRESSION
95 * Replaced struct client_state members rejected,
96 * force, active and toggled_on with "flags" bitmap.
98 * Added CSP_FLAG_MODIFIED and CSP_FLAG_CHUNKED
100 * Added buffer_limit to struct configuration_spec
102 * Revision 1.33 2001/09/20 13:30:08 steudten
104 * Make freez() more secure in case of: if (exp) { free(z) ; a=*z }
105 * Last case will set z to NULL in free(z) and thats bad..
107 * Revision 1.32 2001/09/16 23:02:51 jongfoster
110 * Revision 1.31 2001/09/16 13:20:29 jongfoster
111 * Rewrite of list library. Now has seperate header and list_entry
112 * structures. Also added a large sprinking of assert()s to the list
115 * Revision 1.30 2001/09/13 23:52:00 jongfoster
116 * Support for both static and dynamically generated CGI pages
118 * Revision 1.29 2001/09/13 23:29:43 jongfoster
119 * Defining FORWARD_SPEC_INITIALIZER
121 * Revision 1.28 2001/09/13 23:05:50 jongfoster
122 * Changing the string paramater to the header parsers a "const".
124 * Revision 1.27 2001/08/05 16:06:20 jongfoster
125 * Modifiying "struct map" so that there are now separate header and
126 * "map_entry" structures. This means that functions which modify a
127 * map no longer need to return a pointer to the modified map.
128 * Also, it no longer reverses the order of the entries (which may be
129 * important with some advanced template substitutions).
131 * Revision 1.26 2001/07/30 22:08:36 jongfoster
132 * Tidying up #defines:
133 * - All feature #defines are now of the form FEATURE_xxx
134 * - Permanently turned off WIN_GUI_EDIT
135 * - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
137 * Revision 1.25 2001/07/29 18:43:08 jongfoster
138 * Changing #ifdef _FILENAME_H to FILENAME_H_INCLUDED, to conform to
141 * Revision 1.24 2001/07/25 17:20:27 oes
142 * Introduced http->user_agent
144 * Revision 1.23 2001/07/18 12:32:23 oes
145 * - Added ACTION_STRING_DEANIMATE
146 * - moved #define freez from jcc.h to project.h
148 * Revision 1.22 2001/07/15 17:51:41 jongfoster
149 * Renaming #define STATIC to STATIC_PCRE
151 * Revision 1.21 2001/07/13 14:03:19 oes
152 * - Reorganized regex header inclusion and #defines to
153 * comply to the scheme in configure.in
154 * - Added csp->content_type and its CT_* keys
155 * - Added ACTION_DEANIMATE
156 * - Removed all #ifdef PCRS
158 * Revision 1.20 2001/06/29 21:45:41 oes
159 * Indentation, CRLF->LF, Tab-> Space
161 * Revision 1.19 2001/06/29 13:33:36 oes
162 * - Improved comments
163 * - Introduced http_request.host_ip_addr_str
164 * - Introduced http_response.head_length
165 * - Introduced config.my_ip_addr_str, config.my_hostname,
166 * config.admin_address and config.proxy_info_url
167 * - Removed config.proxy_args_header and config.proxy_args_trailer,
168 * renamed config.proxy_args_invocation to config.proxy_args
169 * - Removed HTML snipplets and GIFs
170 * - Removed logentry from cancelled commit
172 * Revision 1.18 2001/06/09 10:57:39 jongfoster
173 * Adding definition of BUFFER_SIZE.
174 * Changing struct cgi_dispatcher to use "const" strings.
176 * Revision 1.17 2001/06/07 23:15:09 jongfoster
177 * Merging ACL and forward files into config file.
178 * Moving struct gateway members into struct forward_spec
179 * Removing config->proxy_args_gateways
180 * Cosmetic: Adding a few comments
182 * Revision 1.16 2001/06/04 18:31:58 swa
183 * files are now prefixed with either `confdir' or `logdir'.
184 * `make redhat-dist' replaces both entries confdir and logdir
187 * Revision 1.15 2001/06/04 11:28:53 swa
188 * redirect did not work due to missing /
190 * Revision 1.14 2001/06/03 11:03:48 oes
192 * added struct http_response,
193 * changed struct interceptors to struct cgi_dispatcher,
194 * moved HTML stuff to cgi.h
196 * Revision 1.13 2001/06/01 20:05:36 jongfoster
197 * Support for +image-blocker{}: added ACTION_IMAGE_BLOCKER
198 * constant, and removed csp->tinygif.
200 * Revision 1.12 2001/06/01 18:49:17 jongfoster
201 * Replaced "list_share" with "list" - the tiny memory gain was not
202 * worth the extra complexity.
204 * Revision 1.11 2001/06/01 10:32:47 oes
205 * Added constants for anchoring selection bitmap
207 * Revision 1.10 2001/05/31 21:33:53 jongfoster
208 * Changes for new actions file, replacing permissionsfile
209 * and parts of the config file. Also added support for
212 * Revision 1.9 2001/05/31 17:32:31 oes
214 * - Enhanced domain part globbing with infix and prefix asterisk
215 * matching and optional unanchored operation
217 * Revision 1.8 2001/05/29 20:09:15 joergs
218 * HTTP_REDIRECT_TEMPLATE fixed.
220 * Revision 1.7 2001/05/29 09:50:24 jongfoster
221 * Unified blocklist/imagelist/actionslist.
222 * File format is still under discussion, but the internal changes
225 * Also modified interceptor behaviour:
226 * - We now intercept all URLs beginning with one of the following
227 * prefixes (and *only* these prefixes):
229 * * http://ijbswa.sf.net/config/
230 * * http://ijbswa.sourceforge.net/config/
231 * - New interceptors "home page" - go to http://i.j.b/ to see it.
232 * - Internal changes so that intercepted and fast redirect pages
233 * are not replaced with an image.
234 * - Interceptors now have the option to send a binary page direct
235 * to the client. (i.e. ijb-send-banner uses this)
236 * - Implemented show-url-info interceptor. (Which is why I needed
237 * the above interceptors changes - a typical URL is
238 * "http://i.j.b/show-url-info?url=www.somesite.com/banner.gif".
239 * The previous mechanism would not have intercepted that, and
240 * if it had been intercepted then it then it would have replaced
243 * Revision 1.6 2001/05/27 22:17:04 oes
245 * - re_process_buffer no longer writes the modified buffer
246 * to the client, which was very ugly. It now returns the
247 * buffer, which it is then written by chat.
249 * - content_length now adjusts the Content-Length: header
250 * for modified documents rather than crunch()ing it.
251 * (Length info in csp->content_length, which is 0 for
252 * unmodified documents)
254 * - For this to work, sed() is called twice when filtering.
256 * Revision 1.5 2001/05/26 00:28:36 jongfoster
257 * Automatic reloading of config file.
258 * Removed obsolete SIGHUP support (Unix) and Reload menu option (Win32).
259 * Most of the global variables have been moved to a new
260 * struct configuration_spec, accessed through csp->config->globalname
261 * Most of the globals remaining are used by the Win32 GUI.
263 * Revision 1.4 2001/05/22 18:46:04 oes
265 * - Enabled filtering banners by size rather than URL
266 * by adding patterns that replace all standard banner
267 * sizes with the "Junkbuster" gif to the re_filterfile
269 * - Enabled filtering WebBugs by providing a pattern
270 * which kills all 1x1 images
272 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
273 * which is selected by the (nonstandard and therefore
274 * capital) letter 'U' in the option string.
275 * It causes the quantifiers to be ungreedy by default.
276 * Appending a ? turns back to greedy (!).
278 * - Added a new interceptor ijb-send-banner, which
279 * sends back the "Junkbuster" gif. Without imagelist or
280 * MSIE detection support, or if tinygif = 1, or the
281 * URL isn't recognized as an imageurl, a lame HTML
282 * explanation is sent instead.
284 * - Added new feature, which permits blocking remote
285 * script redirects and firing back a local redirect
287 * The feature is conditionally compiled, i.e. it
288 * can be disabled with --disable-fast-redirects,
289 * plus it must be activated by a "fast-redirects"
290 * line in the config file, has its own log level
291 * and of course wants to be displayed by show-proxy-args
292 * Note: Boy, all the #ifdefs in 1001 locations and
293 * all the fumbling with configure.in and acconfig.h
294 * were *way* more work than the feature itself :-(
296 * - Because a generic redirect template was needed for
297 * this, tinygif = 3 now uses the same.
299 * - Moved GIFs, and other static HTTP response templates
304 * - Removed some >400 CRs again (Jon, you really worked
307 * Revision 1.3 2001/05/20 01:21:20 jongfoster
308 * Version 2.9.4 checkin.
309 * - Merged popupfile and cookiefile, and added control over PCRS
310 * filtering, in new "actionsfile".
311 * - Implemented LOG_LEVEL_FATAL, so that if there is a configuration
312 * file error you now get a message box (in the Win32 GUI) rather
313 * than the program exiting with no explanation.
314 * - Made killpopup use the PCRS MIME-type checking and HTTP-header
316 * - Removed tabs from "config"
317 * - Moved duplicated url parsing code in "loaders.c" to a new funcition.
318 * - Bumped up version number.
320 * Revision 1.2 2001/05/17 23:01:01 oes
321 * - Cleaned CRLF's from the sources and related files
323 * Revision 1.1.1.1 2001/05/15 13:59:03 oes
324 * Initial import of version 2.9.3 source tree
327 *********************************************************************/
330 /* Declare struct FILE for vars and funcs. */
333 /* Need time_t for file_list */
337 * Include appropriate regular expression libraries.
338 * Note that pcrs and pcre (native) are needed for cgi
339 * and are included anyway.
342 #if defined(REGEX_PCRE) || defined (REGEX_GNU)
344 #endif /* defined(REGEX_PCRE) || defined (REGEX_GNU) */
358 #if defined(REGEX_PCRE)
360 # include "pcreposix.h"
362 # include <pcreposix.h>
364 #endif /* defined(REGEX_PCRE) */
366 #if defined(REGEX_GNU)
367 # include "gnu_regex.h"
372 #endif /* def AMIGA */
380 #define DBG(a,b) { if ( ldebug >= a ) { printf b ; }}
388 * Error codes. Functions returning these should return a jb_err
390 #define JB_ERR_OK 0 /* Success, no error */
391 #define JB_ERR_MEMORY 1 /* Out of memory */
392 #define JB_ERR_CGI_PARAMS 2 /* Missing or corrupt CGI parameters */
393 #define JB_ERR_FILE 3 /* Error opening, reading or writing a file */
394 #define JB_ERR_PARSE 4 /* Error parsing file */
395 #define JB_ERR_MODIFIED 5 /* File has been modified outside of the */
396 /* CGI actions editor. */
401 * This macro is used to free a pointer that may be NULL
403 #define freez(X) { if(X) { free((void*)X); X = NULL ; } }
406 /* Fix a problem with Solaris. There should be no effect on other
408 * Solaris's isspace() is a macro which uses it's argument directly
409 * as an array index. Therefore we need to make sure that high-bit
410 * characters generate +ve values, and ideally we also want to make
411 * the argument match the declared parameter type of "int".
413 * Note: Remember to #include <ctype.h> if you use these macros.
415 #define ijb_toupper(__X) toupper((int)(unsigned char)(__X))
416 #define ijb_tolower(__X) tolower((int)(unsigned char)(__X))
417 #define ijb_isspace(__X) isspace((int)(unsigned char)(__X))
420 * Use for statically allocated buffers if you have no other choice.
421 * Remember to check the length of what you write into the buffer
422 * - we don't want any buffer overflows!
424 #define BUFFER_SIZE 5000
427 * Buffer size for capturing struct hostent data in the
428 * gethostby(name|addr)_r library calls. Since we don't
429 * loop over gethostbyname_r, the buffer must be sufficient
430 * to accomodate multiple IN A RRs, as used in DNS round robin
431 * load balancing. W3C's wwwlib uses 1K, so that should be
432 * good enough for us, too.
434 #define HOSTENT_BUFFER_SIZE 1024
437 * So you can say "while (FOREVER) { ...do something... }"
441 /* Default IP and port to listen on */
442 #define HADDR_DEFAULT "127.0.0.1"
443 #define HADDR_PORT 8000
448 #define PID_FILE_NAME "junkbuster.pid"
450 /* Forward defs for various structures */
452 /* Need this for struct client_state */
453 struct configuration_spec;
456 /* Generic linked list of strings */
461 struct list_entry *next;
466 struct list_entry *first;
467 struct list_entry *last;
471 /* A map from a string to another string */
477 struct map_entry *next;
482 struct map_entry *first;
483 struct map_entry *last;
489 char *cmd; /* Whole command line: method, URL, Version */
490 char *gpc; /* HTTP method: GET, POST, .. */
491 char *url; /* The URL */
492 char *ver; /* Protocol version */
493 int status; /* HTTP Status */
495 char *host; /* Host part of URL */
496 int port; /* Port of URL or 80 (default) */
497 char *path; /* Path of URL */
498 char *hostport; /* host[:port] */
499 int ssl; /* Flag if protocol is https */
501 char *host_ip_addr_str; /* String with dotted decimal representation
502 * of host's IP. NULL before connect_to() */
505 /* Response generated by CGI, blocker, or error handler */
508 char *status; /* HTTP status (string)*/
509 struct list headers[1]; /* List of header lines */
510 char *head; /* Formatted http response head */
511 int head_length; /* Length of http response head */
512 char *body; /* HTTP document body */
513 int content_length; /* Length of body, REQUIRED if binary body */
514 int is_static; /* Nonzero if the content will never change and
515 * should be cached by the broser (e.g. images) */
521 char *spec; /* The string which was parsed to produce this */
522 /* url_spec. Used for debugging or display only. */
524 /* Hostname matching: */
525 char *domain; /* Fully qalified domain name (FQDN) pattern. */
526 /* May contain "*". */
527 char *dbuf; /* Buffer with '\0'-delimited fqdn */
528 char **dvec; /* Domain ptr vector into dbuf */
529 int dcnt; /* How many domains in fqdn? */
530 int unanchored; /* Bitmap - flags are ANCHOR_LEFT and ANCHOR_RIGHT */
533 int port; /* The port number, or 0 to match all ports. */
536 char *path; /* The path prefix (if not using regex), or source */
538 int pathlen; /* ==strlen(path). Needed for prefix matching. */
540 regex_t *preg; /* Regex for matching path part */
544 #define URL_SPEC_INITIALIZER { NULL, NULL, NULL, NULL, 0, 0, 0, NULL, 0, NULL }
545 #else /* ifndef REGEX */
546 #define URL_SPEC_INITIALIZER { NULL, NULL, NULL, NULL, 0, 0, 0, NULL, 0 }
547 #endif /* ndef REGEX */
549 /* Constants for host part matching in URLs */
550 #define ANCHOR_LEFT 1
551 #define ANCHOR_RIGHT 2
563 #define IOB_PEEK(CSP) ((CSP->iob->cur > CSP->iob->eod) ? (CSP->iob->eod - CSP->iob->cur) : 0)
564 #define IOB_RESET(CSP) if(CSP->iob->buf) free(CSP->iob->buf); memset(CSP->iob, '\0', sizeof(CSP->iob));
566 /* Keys for csp->content_type */
567 #define CT_TEXT 1 /* Suitable for pcrs filtering */
568 #define CT_GIF 2 /* Suitable for GIF filtering */
569 #define CT_TABOO 3 /* DONT filter */
571 #define ACTION_MASK_ALL (~0U)
573 #define ACTION_MOST_COMPATIBLE 0x00000000UL
575 #define ACTION_BLOCK 0x00000001UL
576 #define ACTION_DEANIMATE 0x00000002UL
577 #define ACTION_DOWNGRADE 0x00000004UL
578 #define ACTION_FAST_REDIRECTS 0x00000008UL
579 #define ACTION_FILTER 0x00000010UL
580 #define ACTION_HIDE_FORWARDED 0x00000020UL
581 #define ACTION_HIDE_FROM 0x00000040UL
582 #define ACTION_HIDE_REFERER 0x00000080UL /* sic - follow HTTP, not English */
583 #define ACTION_HIDE_USER_AGENT 0x00000100UL
584 #define ACTION_IMAGE 0x00000200UL
585 #define ACTION_IMAGE_BLOCKER 0x00000400UL
586 #define ACTION_NO_COMPRESSION 0x00000800UL
587 #define ACTION_NO_COOKIE_KEEP 0x00001000UL
588 #define ACTION_NO_COOKIE_READ 0x00002000UL
589 #define ACTION_NO_COOKIE_SET 0x00004000UL
590 #define ACTION_NO_POPUPS 0x00008000UL
591 #define ACTION_VANILLA_WAFER 0x00010000UL
592 #define ACTION_LIMIT_CONNECT 0x00020000UL
594 #define ACTION_STRING_DEANIMATE 0
595 #define ACTION_STRING_FROM 1
596 #define ACTION_STRING_IMAGE_BLOCKER 2
597 #define ACTION_STRING_REFERER 3
598 #define ACTION_STRING_USER_AGENT 4
599 #define ACTION_STRING_LIMIT_CONNECT 5
600 #define ACTION_STRING_COUNT 6
602 #define ACTION_MULTI_ADD_HEADER 0
603 #define ACTION_MULTI_WAFER 1
604 #define ACTION_MULTI_COUNT 2
607 * This structure contains a list of actions to apply to a URL.
608 * It only contains positive instructions - no "-" options.
609 * It is not used to store the actions list itself, only for
610 * url_actions() to return the current values.
612 struct current_action_spec
614 unsigned long flags; /* a bit set to "1" = add action */
616 /* For those actions that require parameters: */
618 /* each entry is valid if & only if corresponding entry in "add" set. */
619 char * string[ACTION_STRING_COUNT];
622 struct list multi[ACTION_MULTI_COUNT][1];
627 * This structure contains a set of changes to actions.
628 * It can contain both positive and negative instructions.
629 * It is used to store an entry in the actions list.
633 unsigned long mask; /* a bit set to "0" = remove action */
634 unsigned long add; /* a bit set to "1" = add action */
636 /* For those actions that require parameters: */
638 /* each entry is valid if & only if corresponding entry in "add" set. */
639 char * string[ACTION_STRING_COUNT];
641 /* Strings to remove. */
642 struct list multi_remove[ACTION_MULTI_COUNT][1];
644 /* If nonzero, remove *all* strings. */
645 int multi_remove_all[ACTION_MULTI_COUNT];
648 struct list multi_add[ACTION_MULTI_COUNT][1];
652 * This structure is used to store the actions list.
654 * It contains a URL pattern, and the chages to the actions.
655 * It is a linked list.
659 struct url_spec url[1];
661 struct action_spec action[1];
663 struct url_actions * next;
668 * Flags for use in csp->flags
670 #define CSP_FLAG_ACTIVE 0x01 /* Set if this client is processing data.
671 * Cleared when the thread associated with
672 * this structure dies. */
673 #define CSP_FLAG_CHUNKED 0x02 /* Set if the server's reply is in "chunked"
674 * transfer encoding */
675 #define CSP_FLAG_FORCED 0x04 /* Set if this request was enforced, although
676 * it would normally have been blocked. */
677 #define CSP_FLAG_MODIFIED 0x08 /* Set if any modification to the body was done */
678 #define CSP_FLAG_REJECTED 0x10 /* Set if request was blocked. */
679 #define CSP_FLAG_TOGGLED_ON 0x20 /* Set if we are toggled on (FEATURE_TOGGLE) */
682 * The state of a JunkBuster processing thread.
686 /* The proxy's configuration */
687 struct configuration_spec * config;
689 /* The actions to perform on the current request */
690 struct current_action_spec action[1];
692 /* socket to talk to client (web browser) */
695 /* socket to talk to server (web server or proxy) */
698 /* Multi-purpose flag container, see CSP_FLAG_* above */
699 unsigned short int flags;
702 * Client PC's IP address, as reported by the accept()_ function.
703 * Both as string and number
709 /* Our IP address and hostname, i.e. the IP address that
710 the client used to reach us, and the associated hostname,
713 char *my_ip_addr_str;
716 /* The URL that was requested */
717 struct http_request http[1];
719 /* An I/O buffer used for buffering data read from the client */
722 /* List of all headers for this request */
723 struct list headers[1];
725 /* List of all cookies for this request */
726 struct list cookie_list[1];
728 /* MIME-Type key, see CT_* above */
729 unsigned short int content_type;
731 /* The "X-Forwarded-For:" header sent by the client */
734 /* files associated with this client */
735 struct file_list *actions_list;
737 struct file_list *rlist; /* pcrs job file */
738 size_t content_length; /* Length after content modification */
741 struct file_list *tlist; /* trustfile */
742 #endif /* def FEATURE_TRUST */
744 struct client_state *next;
749 * List of functions to run on a list of headers
755 char *(*parser)(const struct parsers *, const char *, struct client_state *);
760 * List of available CGI functions.
762 struct cgi_dispatcher
764 const char * const name;
765 jb_err (* const handler)(struct client_state *csp, struct http_response *rsp, const struct map *parameters);
766 const char * const description;
771 * A data file used by JunkBuster. Kept in a linked list.
776 * this is a pointer to the data structures associated with the file.
777 * Read-only once the structure has been created.
781 /* Normally NULL. When we are finished with file (i.e. when we have
782 * loaded a new one), set to a pointer to an unloader function.
783 * Unloader will be called by sweep() (called from main loop) when
784 * all clients using this file are done. This prevents threading
787 void (*unloader)(void *);
789 /* Used internally by sweep(). Do not access from elsewhere. */
792 /* Following variables allow us to check if file has been changed.
793 * Read-only once the structure has been created.
798 /* Pointer to next entry in the linked list of all "file_list"s.
799 * This linked list is so that sweep() can navigate it.
800 * Since sweep() can remove items from the list, we must be careful
801 * to only access this value from main thread (when we know sweep
804 struct file_list *next;
811 struct url_spec url[1];
813 struct block_spec *next;
815 #endif /* def FEATURE_TRUST */
818 #define SOCKS_NONE 0 /* Don't use a SOCKS server */
819 #define SOCKS_4 40 /* original SOCKS 4 protocol */
820 #define SOCKS_4A 41 /* as modified for hosts w/o external DNS */
824 struct url_spec url[1];
826 /* Connection type - must be a SOCKS_xxx constant */
833 /* Parent HTTP proxy */
837 /* For the linked list */
838 struct forward_spec *next;
840 #define FORWARD_SPEC_INITIALIZER { { URL_SPEC_INITIALIZER }, 0, NULL, 0, NULL, 0, NULL }
843 struct re_filterfile_spec
847 struct list patterns[1];
852 #define ACL_PERMIT 1 /* accept connection request */
853 #define ACL_DENY 2 /* reject connection request */
855 struct access_control_addr
862 struct access_control_list
864 struct access_control_addr src[1];
865 struct access_control_addr dst[1];
868 struct access_control_list *next;
870 #endif /* def FEATURE_ACL */
873 /* Maximum number of loaders (actions, re_filter, ...) */
877 #define RUNTIME_FEATURE_CGI_EDIT_ACTIONS 1
878 #define RUNTIME_FEATURE_CGI_TOGGLE 2
882 * Data loaded from the configuration file.
884 * (Anomaly: toggle is still handled through a global, not this structure)
886 struct configuration_spec
891 /* Features that can be enabled/disabled throuigh the config file */
892 unsigned feature_flags;
898 const char *actions_file;
900 /* The administrator's email address */
903 /* A URL with info on this proxy */
904 char *proxy_info_url;
906 const char *re_filterfile;
908 #ifdef FEATURE_COOKIE_JAR
909 const char * jarfile;
911 #endif /* def FEATURE_COOKIE_JAR */
914 * Port and IP to bind to.
915 * Defaults to HADDR_DEFAULT:HADDR_PORT == 127.0.0.1:8000
920 /* Size limit for IOB */
924 const char * trustfile;
926 struct list trust_info[1];
927 struct url_spec *trust_list[64];
928 #endif /* def FEATURE_TRUST */
931 struct access_control_list *acl;
932 #endif /* def FEATURE_ACL */
934 struct forward_spec *forward;
936 /* All options from the config file, HTML-formatted */
939 /* the configuration file object. */
940 struct file_list *config_file_list;
942 /* List of loaders */
943 int (*loaders[NLOADERS])(struct client_state *);
945 /* bool, nonzero if we need to bind() to the new port */
950 #define SZ(X) (sizeof(X) / sizeof(*X))
952 #ifdef FEATURE_FORCE_LOAD
953 #define FORCE_PREFIX "/IJB-FORCE-LOAD"
954 #endif /* def FEATURE_FORCE_LOAD */
957 #define HOME_PAGE_URL "http://ijbswa.sourceforge.net"
958 #define REDIRECT_URL HOME_PAGE_URL "/redirect.php?v=" VERSION "&to="
959 #define CGI_PREFIX_HOST "i.j.b"
962 static const char CSUCCEED[] =
963 "HTTP/1.0 200 Connection established\n"
964 "Proxy-Agent: IJ/" VERSION "\r\n\r\n";
966 static const char CHEADER[] =
967 "HTTP/1.0 400 Invalid header received from browser\r\n\r\n";
969 static const char CFORBIDDEN[] =
970 "HTTP/1.0 403 Connection not allowable\r\nX-Hint: If you read this message interactively, then you know why this happens ,-)\r\n\r\n";
976 #endif /* ndef PROJECT_H_INCLUDED */