+++ /dev/null
-#ifndef PROJECT_H_INCLUDED
-#define PROJECT_H_INCLUDED
-#define PROJECT_H_VERSION "$Id: project.h,v 1.57 2002/03/16 20:28:34 oes Exp $"
-/*********************************************************************
- *
- * File : $Source: /cvsroot/ijbswa/current/project.h,v $
- *
- * Purpose : Defines data structures which are widely used in the
- * project. Does not define any variables or functions
- * (though it does declare some macros).
- *
- * Copyright : Written by and Copyright (C) 2001 the SourceForge
- * Privoxy team. http://ijbswa.sourceforge.net
- *
- * Based on the Internet Junkbuster originally written
- * by and Copyright (C) 1997 Anonymous Coders and
- * Junkbusters Corporation. http://www.junkbusters.com
- *
- * This program is free software; you can redistribute it
- * and/or modify it under the terms of the GNU General
- * Public License as published by the Free Software
- * Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will
- * be useful, but WITHOUT ANY WARRANTY; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A
- * PARTICULAR PURPOSE. See the GNU General Public
- * License for more details.
- *
- * The GNU General Public License should be included with
- * this file. If not, you can view it at
- * http://www.gnu.org/copyleft/gpl.html
- * or write to the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Revisions :
- * $Log: project.h,v $
- * Revision 1.57 2002/03/16 20:28:34 oes
- * Added descriptions to the filters so users will know what they select in the cgi editor
- *
- * Revision 1.56 2002/03/13 20:27:30 oes
- * Fixing bug with CT_TABOO
- *
- * Revision 1.55 2002/03/12 01:42:50 oes
- * Introduced modular filters
- *
- * Revision 1.54 2002/03/09 20:03:52 jongfoster
- * - Making various functions return int rather than size_t.
- * (Undoing a recent change). Since size_t is unsigned on
- * Windows, functions like read_socket that return -1 on
- * error cannot return a size_t.
- *
- * THIS WAS A MAJOR BUG - it caused frequent, unpredictable
- * crashes, and also frequently caused JB to jump to 100%
- * CPU and stay there. (Because it thought it had just
- * read ((unsigned)-1) == 4Gb of data...)
- *
- * - The signature of write_socket has changed, it now simply
- * returns success=0/failure=nonzero.
- *
- * - Trying to get rid of a few warnings --with-debug on
- * Windows, I've introduced a new type "jb_socket". This is
- * used for the socket file descriptors. On Windows, this
- * is SOCKET (a typedef for unsigned). Everywhere else, it's
- * an int. The error value can't be -1 any more, so it's
- * now JB_INVALID_SOCKET (which is -1 on UNIX, and in
- * Windows it maps to the #define INVALID_SOCKET.)
- *
- * - The signature of bind_port has changed.
- *
- * Revision 1.53 2002/03/08 16:48:55 oes
- * Added FEATURE_NO_GIFS and BUILTIN_IMAGE_MIMETYPE
- *
- * Revision 1.52 2002/03/07 03:46:17 oes
- * Fixed compiler warnings
- *
- * Revision 1.51 2002/03/05 04:52:42 oes
- * Deleted non-errlog debugging code
- *
- * Revision 1.50 2002/03/04 19:32:07 oes
- * Changed default port to 8118
- *
- * Revision 1.49 2002/03/04 18:28:55 oes
- * Deleted PID_FILE_NAME
- *
- * Revision 1.48 2002/03/03 14:50:40 oes
- * Fixed CLF logging: Added ocmd member for client's request to struct http_request
- *
- * Revision 1.47 2002/02/20 23:15:13 jongfoster
- * Parsing functions now handle out-of-memory gracefully by returning
- * an error code.
- *
- * Revision 1.46 2002/01/17 21:06:09 jongfoster
- * Now #defining the URLs of the config interface
- *
- * Minor changes to struct http_request and struct url_spec due to
- * standardizing that struct http_request is used to represent a URL, and
- * struct url_spec is used to represent a URL pattern. (Before, URLs were
- * represented as seperate variables and a partially-filled-in url_spec).
- *
- * Revision 1.45 2002/01/09 14:33:27 oes
- * Added HOSTENT_BUFFER_SIZE
- *
- * Revision 1.44 2001/12/30 14:07:32 steudten
- * - Add signal handling (unix)
- * - Add SIGHUP handler (unix)
- * - Add creation of pidfile (unix)
- * - Add action 'top' in rc file (RH)
- * - Add entry 'SIGNALS' to manpage
- * - Add exit message to logfile (unix)
- *
- * Revision 1.43 2001/11/22 21:57:51 jongfoster
- * Making action_spec->flags into an unsigned long rather than just an
- * unsigned int.
- * Adding ACTION_NO_COOKIE_KEEP
- *
- * Revision 1.42 2001/11/05 21:42:41 steudten
- * Include DBG() macro.
- *
- * Revision 1.41 2001/10/28 19:12:06 jongfoster
- * Adding ijb_toupper()
- *
- * Revision 1.40 2001/10/26 17:40:47 oes
- * Moved ijb_isspace and ijb_tolower to project.h
- * Removed http->user_agent, csp->referrer and csp->accept_types
- *
- * Revision 1.39 2001/10/25 03:45:02 david__schmidt
- * Adding a (void*) cast to freez() because Visual Age C++ won't expand the
- * macro when called with a cast; so moving the cast to the macro def'n
- * seems to both eliminate compiler warnings (on darwin and OS/2, anyway) and
- * doesn't make macro expansion complain. Hope this works for everyone else
- * too...
- *
- * Revision 1.38 2001/10/23 21:19:04 jongfoster
- * New error-handling support: jb_err type and JB_ERR_xxx constants
- * CGI functions now return a jb_err, and their parameters map is const.
- * Support for RUNTIME_FEATUREs to enable/disable config editor
- * Adding a few comments
- *
- * Revision 1.37 2001/10/14 22:14:01 jongfoster
- * Removing name_length field from struct cgi_dispatcher, as this is
- * now calculated at runtime from the "name" field.
- *
- * Revision 1.36 2001/10/10 16:45:15 oes
- * Added LIMIT_CONNECT action and string
- * Fixed HTTP message line termination
- * Added CFORBIDDEN HTTP message
- *
- * Revision 1.35 2001/10/07 18:06:43 oes
- * Added status member to struct http_request
- *
- * Revision 1.34 2001/10/07 15:45:25 oes
- * Added url member to struct http_request and commented all
- * members
- *
- * Added CT_TABOO
- *
- * Added ACTION_DOWNGRADE and ACTION_NO_COMPRESSION
- *
- * Replaced struct client_state members rejected,
- * force, active and toggled_on with "flags" bitmap.
- *
- * Added CSP_FLAG_MODIFIED and CSP_FLAG_CHUNKED
- *
- * Added buffer_limit to struct configuration_spec
- *
- * Revision 1.33 2001/09/20 13:30:08 steudten
- *
- * Make freez() more secure in case of: if (exp) { free(z) ; a=*z }
- * Last case will set z to NULL in free(z) and thats bad..
- *
- * Revision 1.32 2001/09/16 23:02:51 jongfoster
- * Fixing warning
- *
- * Revision 1.31 2001/09/16 13:20:29 jongfoster
- * Rewrite of list library. Now has seperate header and list_entry
- * structures. Also added a large sprinking of assert()s to the list
- * code.
- *
- * Revision 1.30 2001/09/13 23:52:00 jongfoster
- * Support for both static and dynamically generated CGI pages
- *
- * Revision 1.29 2001/09/13 23:29:43 jongfoster
- * Defining FORWARD_SPEC_INITIALIZER
- *
- * Revision 1.28 2001/09/13 23:05:50 jongfoster
- * Changing the string paramater to the header parsers a "const".
- *
- * Revision 1.27 2001/08/05 16:06:20 jongfoster
- * Modifiying "struct map" so that there are now separate header and
- * "map_entry" structures. This means that functions which modify a
- * map no longer need to return a pointer to the modified map.
- * Also, it no longer reverses the order of the entries (which may be
- * important with some advanced template substitutions).
- *
- * Revision 1.26 2001/07/30 22:08:36 jongfoster
- * Tidying up #defines:
- * - All feature #defines are now of the form FEATURE_xxx
- * - Permanently turned off WIN_GUI_EDIT
- * - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
- *
- * Revision 1.25 2001/07/29 18:43:08 jongfoster
- * Changing #ifdef _FILENAME_H to FILENAME_H_INCLUDED, to conform to
- * ANSI C rules.
- *
- * Revision 1.24 2001/07/25 17:20:27 oes
- * Introduced http->user_agent
- *
- * Revision 1.23 2001/07/18 12:32:23 oes
- * - Added ACTION_STRING_DEANIMATE
- * - moved #define freez from jcc.h to project.h
- *
- * Revision 1.22 2001/07/15 17:51:41 jongfoster
- * Renaming #define STATIC to STATIC_PCRE
- *
- * Revision 1.21 2001/07/13 14:03:19 oes
- * - Reorganized regex header inclusion and #defines to
- * comply to the scheme in configure.in
- * - Added csp->content_type and its CT_* keys
- * - Added ACTION_DEANIMATE
- * - Removed all #ifdef PCRS
- *
- * Revision 1.20 2001/06/29 21:45:41 oes
- * Indentation, CRLF->LF, Tab-> Space
- *
- * Revision 1.19 2001/06/29 13:33:36 oes
- * - Improved comments
- * - Introduced http_request.host_ip_addr_str
- * - Introduced http_response.head_length
- * - Introduced config.my_ip_addr_str, config.my_hostname,
- * config.admin_address and config.proxy_info_url
- * - Removed config.proxy_args_header and config.proxy_args_trailer,
- * renamed config.proxy_args_invocation to config.proxy_args
- * - Removed HTML snipplets and GIFs
- * - Removed logentry from cancelled commit
- *
- * Revision 1.18 2001/06/09 10:57:39 jongfoster
- * Adding definition of BUFFER_SIZE.
- * Changing struct cgi_dispatcher to use "const" strings.
- *
- * Revision 1.17 2001/06/07 23:15:09 jongfoster
- * Merging ACL and forward files into config file.
- * Moving struct gateway members into struct forward_spec
- * Removing config->proxy_args_gateways
- * Cosmetic: Adding a few comments
- *
- * Revision 1.16 2001/06/04 18:31:58 swa
- * files are now prefixed with either `confdir' or `logdir'.
- * `make redhat-dist' replaces both entries confdir and logdir
- * with redhat values
- *
- * Revision 1.15 2001/06/04 11:28:53 swa
- * redirect did not work due to missing /
- *
- * Revision 1.14 2001/06/03 11:03:48 oes
- * Added struct map,
- * added struct http_response,
- * changed struct interceptors to struct cgi_dispatcher,
- * moved HTML stuff to cgi.h
- *
- * Revision 1.13 2001/06/01 20:05:36 jongfoster
- * Support for +image-blocker{}: added ACTION_IMAGE_BLOCKER
- * constant, and removed csp->tinygif.
- *
- * Revision 1.12 2001/06/01 18:49:17 jongfoster
- * Replaced "list_share" with "list" - the tiny memory gain was not
- * worth the extra complexity.
- *
- * Revision 1.11 2001/06/01 10:32:47 oes
- * Added constants for anchoring selection bitmap
- *
- * Revision 1.10 2001/05/31 21:33:53 jongfoster
- * Changes for new actions file, replacing permissionsfile
- * and parts of the config file. Also added support for
- * list_shared.
- *
- * Revision 1.9 2001/05/31 17:32:31 oes
- *
- * - Enhanced domain part globbing with infix and prefix asterisk
- * matching and optional unanchored operation
- *
- * Revision 1.8 2001/05/29 20:09:15 joergs
- * HTTP_REDIRECT_TEMPLATE fixed.
- *
- * Revision 1.7 2001/05/29 09:50:24 jongfoster
- * Unified blocklist/imagelist/actionslist.
- * File format is still under discussion, but the internal changes
- * are (mostly) done.
- *
- * Also modified interceptor behaviour:
- * - We now intercept all URLs beginning with one of the following
- * prefixes (and *only* these prefixes):
- * * http://i.j.b/
- * * http://ijbswa.sf.net/config/
- * * http://ijbswa.sourceforge.net/config/
- * - New interceptors "home page" - go to http://i.j.b/ to see it.
- * - Internal changes so that intercepted and fast redirect pages
- * are not replaced with an image.
- * - Interceptors now have the option to send a binary page direct
- * to the client. (i.e. ijb-send-banner uses this)
- * - Implemented show-url-info interceptor. (Which is why I needed
- * the above interceptors changes - a typical URL is
- * "http://i.j.b/show-url-info?url=www.somesite.com/banner.gif".
- * The previous mechanism would not have intercepted that, and
- * if it had been intercepted then it then it would have replaced
- * it with an image.)
- *
- * Revision 1.6 2001/05/27 22:17:04 oes
- *
- * - re_process_buffer no longer writes the modified buffer
- * to the client, which was very ugly. It now returns the
- * buffer, which it is then written by chat.
- *
- * - content_length now adjusts the Content-Length: header
- * for modified documents rather than crunch()ing it.
- * (Length info in csp->content_length, which is 0 for
- * unmodified documents)
- *
- * - For this to work, sed() is called twice when filtering.
- *
- * Revision 1.5 2001/05/26 00:28:36 jongfoster
- * Automatic reloading of config file.
- * Removed obsolete SIGHUP support (Unix) and Reload menu option (Win32).
- * Most of the global variables have been moved to a new
- * struct configuration_spec, accessed through csp->config->globalname
- * Most of the globals remaining are used by the Win32 GUI.
- *
- * Revision 1.4 2001/05/22 18:46:04 oes
- *
- * - Enabled filtering banners by size rather than URL
- * by adding patterns that replace all standard banner
- * sizes with the "Junkbuster" gif to the re_filterfile
- *
- * - Enabled filtering WebBugs by providing a pattern
- * which kills all 1x1 images
- *
- * - Added support for PCRE_UNGREEDY behaviour to pcrs,
- * which is selected by the (nonstandard and therefore
- * capital) letter 'U' in the option string.
- * It causes the quantifiers to be ungreedy by default.
- * Appending a ? turns back to greedy (!).
- *
- * - Added a new interceptor ijb-send-banner, which
- * sends back the "Junkbuster" gif. Without imagelist or
- * MSIE detection support, or if tinygif = 1, or the
- * URL isn't recognized as an imageurl, a lame HTML
- * explanation is sent instead.
- *
- * - Added new feature, which permits blocking remote
- * script redirects and firing back a local redirect
- * to the browser.
- * The feature is conditionally compiled, i.e. it
- * can be disabled with --disable-fast-redirects,
- * plus it must be activated by a "fast-redirects"
- * line in the config file, has its own log level
- * and of course wants to be displayed by show-proxy-args
- * Note: Boy, all the #ifdefs in 1001 locations and
- * all the fumbling with configure.in and acconfig.h
- * were *way* more work than the feature itself :-(
- *
- * - Because a generic redirect template was needed for
- * this, tinygif = 3 now uses the same.
- *
- * - Moved GIFs, and other static HTTP response templates
- * to project.h
- *
- * - Some minor fixes
- *
- * - Removed some >400 CRs again (Jon, you really worked
- * a lot! ;-)
- *
- * Revision 1.3 2001/05/20 01:21:20 jongfoster
- * Version 2.9.4 checkin.
- * - Merged popupfile and cookiefile, and added control over PCRS
- * filtering, in new "actionsfile".
- * - Implemented LOG_LEVEL_FATAL, so that if there is a configuration
- * file error you now get a message box (in the Win32 GUI) rather
- * than the program exiting with no explanation.
- * - Made killpopup use the PCRS MIME-type checking and HTTP-header
- * skipping.
- * - Removed tabs from "config"
- * - Moved duplicated url parsing code in "loaders.c" to a new funcition.
- * - Bumped up version number.
- *
- * Revision 1.2 2001/05/17 23:01:01 oes
- * - Cleaned CRLF's from the sources and related files
- *
- * Revision 1.1.1.1 2001/05/15 13:59:03 oes
- * Initial import of version 2.9.3 source tree
- *
- *
- *********************************************************************/
-\f
-
-/* Declare struct FILE for vars and funcs. */
-#include <stdio.h>
-
-/* Need time_t for file_list */
-#include <time.h>
-
-/*
- * Include appropriate regular expression libraries.
- * Note that pcrs and pcre (native) are needed for cgi
- * and are included anyway.
- */
-
-#if defined(REGEX_PCRE) || defined (REGEX_GNU)
-# define REGEX
-#endif /* defined(REGEX_PCRE) || defined (REGEX_GNU) */
-
-#ifdef STATIC_PCRE
-# include "pcre.h"
-#else
-# include <pcre.h>
-#endif
-
-#ifdef STATIC_PCRS
-# include "pcrs.h"
-#else
-# include <pcrs.h>
-#endif
-
-#if defined(REGEX_PCRE)
-# ifdef STATIC_PCRE
-# include "pcreposix.h"
-# else
-# include <pcreposix.h>
-# endif
-#endif /* defined(REGEX_PCRE) */
-
-#if defined(REGEX_GNU)
-# include "gnu_regex.h"
-#endif
-
-#ifdef AMIGA
-#include "amiga.h"
-#endif /* def AMIGA */
-
-#ifdef _WIN32
-/*
- * I don't want to have to #include all this just for the declaration
- * of SOCKET. However, it looks like we have to...
- */
-#include <windows.h>
-#endif
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * The type used by sockets. On UNIX it's an int. Microsoft decided to
- * make it an unsigned.
- */
-#ifdef _WIN32
-typedef SOCKET jb_socket;
-#define JB_INVALID_SOCKET INVALID_SOCKET
-#else /* ndef _WIN32 */
-typedef int jb_socket;
-#define JB_INVALID_SOCKET (-1)
-#endif /* ndef _WIN32 */
-
-
-/*
- * Error codes. Functions returning these should return a jb_err
- */
-#define JB_ERR_OK 0 /* Success, no error */
-#define JB_ERR_MEMORY 1 /* Out of memory */
-#define JB_ERR_CGI_PARAMS 2 /* Missing or corrupt CGI parameters */
-#define JB_ERR_FILE 3 /* Error opening, reading or writing a file */
-#define JB_ERR_PARSE 4 /* Error parsing file */
-#define JB_ERR_MODIFIED 5 /* File has been modified outside of the */
- /* CGI actions editor. */
-typedef int jb_err;
-
-
-/*
- * This macro is used to free a pointer that may be NULL
- */
-#define freez(X) { if(X) { free((void*)X); X = NULL ; } }
-
-
-/* Fix a problem with Solaris. There should be no effect on other
- * platforms.
- * Solaris's isspace() is a macro which uses it's argument directly
- * as an array index. Therefore we need to make sure that high-bit
- * characters generate +ve values, and ideally we also want to make
- * the argument match the declared parameter type of "int".
- *
- * Note: Remember to #include <ctype.h> if you use these macros.
- */
-#define ijb_toupper(__X) toupper((int)(unsigned char)(__X))
-#define ijb_tolower(__X) tolower((int)(unsigned char)(__X))
-#define ijb_isspace(__X) isspace((int)(unsigned char)(__X))
-
-/*
- * Use for statically allocated buffers if you have no other choice.
- * Remember to check the length of what you write into the buffer
- * - we don't want any buffer overflows!
- */
-#define BUFFER_SIZE 5000
-
-/*
- * Buffer size for capturing struct hostent data in the
- * gethostby(name|addr)_r library calls. Since we don't
- * loop over gethostbyname_r, the buffer must be sufficient
- * to accomodate multiple IN A RRs, as used in DNS round robin
- * load balancing. W3C's wwwlib uses 1K, so that should be
- * good enough for us, too.
- */
-#define HOSTENT_BUFFER_SIZE 1024
-
-/*
- * So you can say "while (FOREVER) { ...do something... }"
- */
-#define FOREVER 1
-
-/* Default IP and port to listen on */
-#define HADDR_DEFAULT "127.0.0.1"
-#define HADDR_PORT 8118
-
-/* Forward defs for various structures */
-
-/* Need this for struct client_state */
-struct configuration_spec;
-
-
-/* Generic linked list of strings */
-
-struct list_entry
-{
- const char *str;
- struct list_entry *next;
-};
-
-struct list
-{
- struct list_entry *first;
- struct list_entry *last;
-};
-
-
-/* A map from a string to another string */
-
-struct map_entry
-{
- const char *name;
- const char *value;
- struct map_entry *next;
-};
-
-struct map
-{
- struct map_entry *first;
- struct map_entry *last;
-};
-
-
-struct http_request
-{
- char *cmd; /* Whole command line: method, URL, Version */
- char *ocmd; /* Backup of original cmd for CLF logging */
- char *gpc; /* HTTP method: GET, POST, .. */
- char *url; /* The URL */
- char *ver; /* Protocol version */
- int status; /* HTTP Status */
-
- char *host; /* Host part of URL */
- int port; /* Port of URL or 80 (default) */
- char *path; /* Path of URL */
- char *hostport; /* host[:port] */
- int ssl; /* Flag if protocol is https */
-
- char *host_ip_addr_str; /* String with dotted decimal representation
- * of host's IP. NULL before connect_to() */
-
- char *dbuffer; /* Buffer with '\0'-delimited domain name. */
- char **dvec; /* List of pointers to the strings in dbuffer. */
- int dcount; /* How many parts to this domain? (length of dvec) */
-};
-
-/*
- * Response generated by CGI, blocker, or error handler
- */
-struct http_response
-{
- char *status; /* HTTP status (string) */
- struct list headers[1]; /* List of header lines */
- char *head; /* Formatted http response head */
- size_t head_length; /* Length of http response head */
- char *body; /* HTTP document body */
- size_t content_length; /* Length of body, REQUIRED if binary body */
- int is_static; /* Nonzero if the content will never change and
- * should be cached by the brwoser (e.g. images) */
-};
-
-/* A URL pattern */
-struct url_spec
-{
- char *spec; /* The string which was parsed to produce this */
- /* url_spec. Used for debugging or display only. */
-
- /* Hostname matching, or dbuffer == NULL to match all hosts */
- char *dbuffer; /* Buffer with '\0'-delimited domain name. */
- char **dvec; /* List of pointers to the strings in dbuffer. */
- int dcount; /* How many parts to this domain? (length of dvec) */
- int unanchored; /* Bitmap - flags are ANCHOR_LEFT and ANCHOR_RIGHT. */
-
- /* Port matching: */
- int port; /* The port number, or 0 to match all ports. */
-
- /* Path matching: */
- char *path; /* The path prefix (if not using regex), or source */
- /* for the regex. */
- int pathlen; /* ==strlen(path). Needed for prefix matching. */
-#ifdef REGEX
- regex_t *preg; /* Regex for matching path part */
-#endif
-};
-#ifdef REGEX
-#define URL_SPEC_INITIALIZER { NULL, NULL, NULL, 0, 0, 0, NULL, 0, NULL }
-#else /* ifndef REGEX */
-#define URL_SPEC_INITIALIZER { NULL, NULL, NULL, 0, 0, 0, NULL, 0 }
-#endif /* ndef REGEX */
-
-/* Constants for host part matching in URLs */
-#define ANCHOR_LEFT 1
-#define ANCHOR_RIGHT 2
-
-
-/* An I/O buffer */
-struct iob
-{
- char *buf;
- char *cur;
- char *eod;
-};
-
-
-#define IOB_PEEK(CSP) ((CSP->iob->cur > CSP->iob->eod) ? (CSP->iob->eod - CSP->iob->cur) : 0)
-#define IOB_RESET(CSP) if(CSP->iob->buf) free(CSP->iob->buf); memset(CSP->iob, '\0', sizeof(CSP->iob));
-
-/* Bits for csp->content_type */
-#define CT_TEXT 1 /* Suitable for pcrs filtering */
-#define CT_GIF 2 /* Suitable for GIF filtering */
-#define CT_TABOO 4 /* DONT filter */
-
-#define ACTION_MASK_ALL (~0U)
-
-#define ACTION_MOST_COMPATIBLE 0x00000000UL
-
-#define ACTION_BLOCK 0x00000001UL
-#define ACTION_DEANIMATE 0x00000002UL
-#define ACTION_DOWNGRADE 0x00000004UL
-#define ACTION_FAST_REDIRECTS 0x00000008UL
-#define ACTION_HIDE_FORWARDED 0x00000010UL
-#define ACTION_HIDE_FROM 0x00000020UL
-#define ACTION_HIDE_REFERER 0x00000040UL /* sic - follow HTTP, not English */
-#define ACTION_HIDE_USER_AGENT 0x00000080UL
-#define ACTION_IMAGE 0x00000100UL
-#define ACTION_IMAGE_BLOCKER 0x00000200UL
-#define ACTION_NO_COMPRESSION 0x00000400UL
-#define ACTION_NO_COOKIE_KEEP 0x00000800UL
-#define ACTION_NO_COOKIE_READ 0x00001000UL
-#define ACTION_NO_COOKIE_SET 0x00002000UL
-#define ACTION_NO_POPUPS 0x00004000UL
-#define ACTION_VANILLA_WAFER 0x00008000UL
-#define ACTION_LIMIT_CONNECT 0x00010000UL
-
-#define ACTION_STRING_DEANIMATE 0
-#define ACTION_STRING_FROM 1
-#define ACTION_STRING_IMAGE_BLOCKER 2
-#define ACTION_STRING_REFERER 3
-#define ACTION_STRING_USER_AGENT 4
-#define ACTION_STRING_LIMIT_CONNECT 5
-#define ACTION_STRING_COUNT 6
-
-#define ACTION_MULTI_ADD_HEADER 0
-#define ACTION_MULTI_WAFER 1
-#define ACTION_MULTI_FILTER 2
-#define ACTION_MULTI_COUNT 3
-
-
-/*
- * This structure contains a list of actions to apply to a URL.
- * It only contains positive instructions - no "-" options.
- * It is not used to store the actions list itself, only for
- * url_actions() to return the current values.
- */
-struct current_action_spec
-{
- unsigned long flags; /* a bit set to "1" = add action */
-
- /* For those actions that require parameters: */
-
- /* each entry is valid if & only if corresponding entry in "add" set. */
- char * string[ACTION_STRING_COUNT];
-
- /* Strings to add */
- struct list multi[ACTION_MULTI_COUNT][1];
-};
-
-
-/*
- * This structure contains a set of changes to actions.
- * It can contain both positive and negative instructions.
- * It is used to store an entry in the actions list.
- */
-struct action_spec
-{
- unsigned long mask; /* a bit set to "0" = remove action */
- unsigned long add; /* a bit set to "1" = add action */
-
- /* For those actions that require parameters: */
-
- /* each entry is valid if & only if corresponding entry in "add" set. */
- char * string[ACTION_STRING_COUNT];
-
- /* Strings to remove. */
- struct list multi_remove[ACTION_MULTI_COUNT][1];
-
- /* If nonzero, remove *all* strings. */
- int multi_remove_all[ACTION_MULTI_COUNT];
-
- /* Strings to add */
- struct list multi_add[ACTION_MULTI_COUNT][1];
-};
-
-/*
- * This structure is used to store the actions list.
- *
- * It contains a URL pattern, and the chages to the actions.
- * It is a linked list.
- */
-struct url_actions
-{
- struct url_spec url[1];
-
- struct action_spec action[1];
-
- struct url_actions * next;
-};
-
-
-/*
- * Flags for use in csp->flags
- */
-#define CSP_FLAG_ACTIVE 0x01 /* Set if this client is processing data.
- * Cleared when the thread associated with
- * this structure dies. */
-#define CSP_FLAG_CHUNKED 0x02 /* Set if the server's reply is in "chunked"
- * transfer encoding */
-#define CSP_FLAG_FORCED 0x04 /* Set if this request was enforced, although
- * it would normally have been blocked. */
-#define CSP_FLAG_MODIFIED 0x08 /* Set if any modification to the body was done */
-#define CSP_FLAG_REJECTED 0x10 /* Set if request was blocked. */
-#define CSP_FLAG_TOGGLED_ON 0x20 /* Set if we are toggled on (FEATURE_TOGGLE) */
-
-/*
- * The state of a JunkBuster processing thread.
- */
-struct client_state
-{
- /* The proxy's configuration */
- struct configuration_spec * config;
-
- /* The actions to perform on the current request */
- struct current_action_spec action[1];
-
- /* socket to talk to client (web browser) */
- jb_socket cfd;
-
- /* socket to talk to server (web server or proxy) */
- jb_socket sfd;
-
- /* Multi-purpose flag container, see CSP_FLAG_* above */
- unsigned short int flags;
-
- /*
- * Client PC's IP address, as reported by the accept()_ function.
- * Both as string and number
- */
- char *ip_addr_str;
- long ip_addr_long;
-
-
- /* Our IP address and hostname, i.e. the IP address that
- the client used to reach us, and the associated hostname,
- both as strings
- */
- char *my_ip_addr_str;
- char *my_hostname;
-
- /* The URL that was requested */
- struct http_request http[1];
-
- /* An I/O buffer used for buffering data read from the client */
- struct iob iob[1];
-
- /* List of all headers for this request */
- struct list headers[1];
-
- /* List of all cookies for this request */
- struct list cookie_list[1];
-
- /* MIME-Type key, see CT_* above */
- unsigned short int content_type;
-
- /* The "X-Forwarded-For:" header sent by the client */
- char *x_forwarded;
-
- /* files associated with this client */
- struct file_list *actions_list;
-
- struct file_list *rlist; /* pcrs job file */
- size_t content_length; /* Length after content modification */
-
-#ifdef FEATURE_TRUST
- struct file_list *tlist; /* trustfile */
-#endif /* def FEATURE_TRUST */
-
- struct client_state *next;
-};
-
-
-/*
- * A function to add a header
- */
-typedef jb_err (*add_header_func_ptr)(struct client_state *);
-
-/*
- * A function to process a header
- */
-typedef jb_err (*parser_func_ptr )(struct client_state *, char **);
-
-/*
- * List of functions to run on a list of headers
- */
-struct parsers
-{
- char *str;
- size_t len;
- parser_func_ptr parser;
-};
-
-
-/*
- * List of available CGI functions.
- */
-struct cgi_dispatcher
-{
- const char * const name;
- jb_err (* const handler)(struct client_state *csp, struct http_response *rsp, const struct map *parameters);
- const char * const description;
-};
-
-
-/*
- * A data file used by JunkBuster. Kept in a linked list.
- */
-struct file_list
-{
- /*
- * this is a pointer to the data structures associated with the file.
- * Read-only once the structure has been created.
- */
- void *f;
-
- /* Normally NULL. When we are finished with file (i.e. when we have
- * loaded a new one), set to a pointer to an unloader function.
- * Unloader will be called by sweep() (called from main loop) when
- * all clients using this file are done. This prevents threading
- * problems.
- */
- void (*unloader)(void *);
-
- /* Used internally by sweep(). Do not access from elsewhere. */
- int active;
-
- /* Following variables allow us to check if file has been changed.
- * Read-only once the structure has been created.
- */
- time_t lastmodified;
- char * filename;
-
- /* Pointer to next entry in the linked list of all "file_list"s.
- * This linked list is so that sweep() can navigate it.
- * Since sweep() can remove items from the list, we must be careful
- * to only access this value from main thread (when we know sweep
- * won't be running).
- */
- struct file_list *next;
-};
-
-
-#ifdef FEATURE_TRUST
-struct block_spec
-{
- struct url_spec url[1];
- int reject;
- struct block_spec *next;
-};
-#endif /* def FEATURE_TRUST */
-
-
-#define SOCKS_NONE 0 /* Don't use a SOCKS server */
-#define SOCKS_4 40 /* original SOCKS 4 protocol */
-#define SOCKS_4A 41 /* as modified for hosts w/o external DNS */
-
-struct forward_spec
-{
- struct url_spec url[1];
-
- /* Connection type - must be a SOCKS_xxx constant */
- int type;
-
- /* SOCKS server */
- char *gateway_host;
- int gateway_port;
-
- /* Parent HTTP proxy */
- char *forward_host;
- int forward_port;
-
- /* For the linked list */
- struct forward_spec *next;
-};
-#define FORWARD_SPEC_INITIALIZER { { URL_SPEC_INITIALIZER }, 0, NULL, 0, NULL, 0, NULL }
-
-
-/*
- * This struct represents one filter (one block) from
- * the re_filterfile. If there is more than one filter
- * in the file, the file will be represented by a
- * chained list of re_filterfile specs.
- */
-struct re_filterfile_spec
-{
- char *name; /* Name from FILTER: statement in re_filterfile */
- char *description; /* Description from FILTER: statement in re_filterfile */
- struct list patterns[1]; /* The patterns from the re_filterfile */
- pcrs_job *joblist; /* The resulting compiled pcrs_jobs */
- struct re_filterfile_spec *next; /* The pointer for chaining */
-};
-
-#ifdef FEATURE_ACL
-#define ACL_PERMIT 1 /* accept connection request */
-#define ACL_DENY 2 /* reject connection request */
-
-struct access_control_addr
-{
- unsigned long addr;
- unsigned long mask;
- unsigned long port;
-};
-
-struct access_control_list
-{
- struct access_control_addr src[1];
- struct access_control_addr dst[1];
-
- short action;
- struct access_control_list *next;
-};
-#endif /* def FEATURE_ACL */
-
-
-/* Maximum number of loaders (actions, re_filter, ...) */
-#define NLOADERS 8
-
-
-#define RUNTIME_FEATURE_CGI_EDIT_ACTIONS 1
-#define RUNTIME_FEATURE_CGI_TOGGLE 2
-
-
-/*
- * Data loaded from the configuration file.
- *
- * (Anomaly: toggle is still handled through a global, not this structure)
- */
-struct configuration_spec
-{
- int debug;
- int multi_threaded;
-
- /* Features that can be enabled/disabled throuigh the config file */
- unsigned feature_flags;
-
- const char *logfile;
-
- const char *confdir;
- const char *logdir;
- const char *actions_file;
-
- /* The administrator's email address */
- char *admin_address;
-
- /* A URL with info on this proxy */
- char *proxy_info_url;
-
- const char *re_filterfile;
-
-#ifdef FEATURE_COOKIE_JAR
- const char * jarfile;
- FILE * jar;
-#endif /* def FEATURE_COOKIE_JAR */
-
- /*
- * Port and IP to bind to.
- * Defaults to HADDR_DEFAULT:HADDR_PORT == 127.0.0.1:8118
- */
- const char *haddr;
- int hport;
-
- /* Size limit for IOB */
- size_t buffer_limit;
-
-#ifdef FEATURE_TRUST
- const char * trustfile;
-
- struct list trust_info[1];
- struct url_spec *trust_list[64];
-#endif /* def FEATURE_TRUST */
-
-#ifdef FEATURE_ACL
- struct access_control_list *acl;
-#endif /* def FEATURE_ACL */
-
- struct forward_spec *forward;
-
- /* All options from the config file, HTML-formatted */
- char *proxy_args;
-
- /* the configuration file object. */
- struct file_list *config_file_list;
-
- /* List of loaders */
- int (*loaders[NLOADERS])(struct client_state *);
-
- /* bool, nonzero if we need to bind() to the new port */
- int need_bind;
-};
-
-
-#define SZ(X) (sizeof(X) / sizeof(*X))
-
-#ifdef FEATURE_FORCE_LOAD
-#define FORCE_PREFIX "/IJB-FORCE-LOAD"
-#endif /* def FEATURE_FORCE_LOAD */
-
-#ifdef FEATURE_NO_GIFS
-#define BUILTIN_IMAGE_MIMETYPE "image/png"
-#else
-#define BUILTIN_IMAGE_MIMETYPE "image/gif"
-#endif /* def FEATURE_NO_GIFS */
-
-
-/* Hardwired URLs */
-#define HOME_PAGE_URL "http://ijbswa.sourceforge.net"
-#define REDIRECT_URL HOME_PAGE_URL "/redirect.php?v=" VERSION "&to="
-
-/*
- * The "hosts" to intercept and display CGI pages.
- * First one is a hostname only, second one can specify host and path.
- *
- * Notes:
- * 1) Do not specify the http: prefix
- * 2) CGI_SITE_2_PATH must not end with /, one will be added automatically.
- * 3) CGI_SITE_2_PATH must start with /, unless it is the empty string.
- */
-#define CGI_SITE_1_HOST "i.j.b"
-#define CGI_SITE_2_HOST "ijbswa.sourceforge.net"
-#define CGI_SITE_2_PATH "/config"
-
-/*
- * The prefix for CGI pages. Written out in generated HTML.
- * INCLUDES the trailing slash.
- */
-#define CGI_PREFIX "http://" CGI_SITE_2_HOST CGI_SITE_2_PATH "/"
-
-
-/* HTTP snipplets */
-static const char CSUCCEED[] =
- "HTTP/1.0 200 Connection established\n"
- "Proxy-Agent: IJ/" VERSION "\r\n\r\n";
-
-static const char CHEADER[] =
- "HTTP/1.0 400 Invalid header received from browser\r\n\r\n";
-
-static const char CFORBIDDEN[] =
- "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";
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif /* ndef PROJECT_H_INCLUDED */
-
-/*
- Local Variables:
- tab-width: 3
- end:
-*/
projects / privoxy.git / blobdiff