X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=project.h;h=c23ca50c90c5cb30bc3c670ad1ad231af7a704bd;hp=2b0292ae7bc4415818734bac7a5b6555b24a1074;hb=c79bcf8fae8bb73f7c5a61c387fcbb2db2690536;hpb=e8db07c2f0720685bb504013a6a1e576b0cf718f diff --git a/project.h b/project.h index 2b0292ae..c23ca50c 100644 --- a/project.h +++ b/project.h @@ -1,7 +1,5 @@ #ifndef PROJECT_H_INCLUDED #define PROJECT_H_INCLUDED -/** Version string. */ -#define PROJECT_H_VERSION "$Id: project.h,v 1.135 2009/05/10 10:19:23 fabiankeil Exp $" /********************************************************************* * * File : $Source: /cvsroot/ijbswa/current/project.h,v $ @@ -10,7 +8,7 @@ * project. Does not define any variables or functions * (though it does declare some macros). * - * Copyright : Written by and Copyright (C) 2001-2009 the + * Copyright : Written by and Copyright (C) 2001-2014 the * Privoxy team. http://www.privoxy.org/ * * Based on the Internet Junkbuster originally written @@ -35,693 +33,8 @@ * or write to the Free Software Foundation, Inc., 59 * Temple Place - Suite 330, Boston, MA 02111-1307, USA. * - * Revisions : - * $Log: project.h,v $ - * Revision 1.135 2009/05/10 10:19:23 fabiankeil - * Reenable server-side-only keep-alive support, but only share - * outgoing connections if the connection-sharing option is set. - * - * Revision 1.134 2009/05/10 10:12:30 fabiankeil - * Initial keep-alive support for the client socket. - * Temporarily disable the server-side-only keep-alive code. - * - * Revision 1.133 2009/04/24 15:29:43 fabiankeil - * Allow to limit the number of of client connections. - * - * Revision 1.132 2009/04/17 11:45:19 fabiankeil - * Replace HAVE_GETADDRINFO and HAVE_GETNAMEINFO macros - * with HAVE_RFC2553 macro. Original patch by Petr Pisar. - * - * Revision 1.131 2009/04/17 11:34:35 fabiankeil - * Style cosmetics for the IPv6 code. - * - * Revision 1.130 2009/04/17 11:27:49 fabiankeil - * Petr Pisar's privoxy-3.0.12-ipv6-3.diff. - * - * Revision 1.129 2009/03/08 14:12:51 fabiankeil - * All the CSP_FLAG_FOO bit masks should be unsigned ints. - * - * Revision 1.128 2009/03/07 13:09:17 fabiankeil - * Change csp->expected_content and_csp->expected_content_length from - * size_t to unsigned long long to reduce the likelihood of integer - * overflows that would let us close the connection prematurely. - * Bug found while investigating #2669131, reported by cyberpatrol. - * - * Revision 1.127 2008/12/20 14:53:55 fabiankeil - * Add config option socket-timeout to control the time - * Privoxy waits for data to arrive on a socket. Useful - * in case of stale ssh tunnels or when fuzz-testing. - * - * Revision 1.126 2008/12/14 17:02:54 fabiankeil - * Fix a cparser warning. - * - * Revision 1.125 2008/11/20 08:22:28 fabiankeil - * Remove an obsolete comment. - * - * Revision 1.124 2008/11/16 12:43:49 fabiankeil - * Turn keep-alive support into a runtime feature - * that is disabled by setting keep-alive-timeout - * to a negative value. - * - * Revision 1.123 2008/11/10 16:55:59 fabiankeil - * Fix a gcc44 warning (in filters.c). - * - * Revision 1.122 2008/10/16 07:11:34 fabiankeil - * Fix a bunch of gcc44 conversion warnings. - * - * Revision 1.121 2008/10/09 18:21:41 fabiankeil - * Flush work-in-progress changes to keep outgoing connections - * alive where possible. Incomplete and mostly #ifdef'd out. - * - * Revision 1.120 2008/09/21 13:36:52 fabiankeil - * If change-x-forwarded-for{add} is used and the client - * sends multiple X-Forwarded-For headers, append the client's - * IP address to each one of them. "Traditionally" we would - * lose all but the last one. - * - * Revision 1.119 2008/09/20 10:04:33 fabiankeil - * Remove hide-forwarded-for-headers action which has - * been obsoleted by change-x-forwarded-for{block}. - * - * Revision 1.118 2008/09/19 15:26:29 fabiankeil - * Add change-x-forwarded-for{} action to block or add - * X-Forwarded-For headers. Mostly based on code removed - * before 3.0.7. - * - * Revision 1.117 2008/08/30 12:03:07 fabiankeil - * Remove FEATURE_COOKIE_JAR. - * - * Revision 1.116 2008/05/20 16:05:02 fabiankeil - * Move parsers structure definition from project.h to parsers.h. - * - * Revision 1.115 2008/05/19 16:57:20 fabiankeil - * Declare all members of the parsers structure immutable. - * - * Revision 1.114 2008/04/11 16:35:39 fabiankeil - * Oops, I forgot to shorten the URL_SPEC_INITIALIZER in my last commit. - * - * Revision 1.113 2008/04/10 14:41:04 fabiankeil - * Ditch url_spec's path member now that it's no longer used. - * - * Revision 1.112 2008/04/06 15:18:34 fabiankeil - * Oh well, rename the --enable-pcre-host-patterns option to - * --enable-extended-host-patterns as it's not really PCRE syntax. - * - * Revision 1.111 2008/04/06 14:54:26 fabiankeil - * Use PCRE syntax in host patterns when configured - * with --enable-pcre-host-patterns. - * - * Revision 1.110 2008/03/29 12:13:46 fabiankeil - * Remove send-wafer and send-vanilla-wafer actions. - * - * Revision 1.109 2008/03/28 15:13:41 fabiankeil - * Remove inspect-jpegs action. - * - * Revision 1.108 2008/03/27 18:27:36 fabiankeil - * Remove kill-popups action. - * - * Revision 1.107 2008/03/26 18:07:08 fabiankeil - * Add hostname directive. Closes PR#1918189. - * - * Revision 1.106 2008/03/24 11:21:03 fabiankeil - * Share the action settings for multiple patterns in the same - * section so we waste less memory for gigantic block lists - * (and load them slightly faster). Reported by Franz Schwartau. - * - * Revision 1.105 2008/03/21 11:16:27 fabiankeil - * Garbage-collect csp->my_ip_addr_str and csp->my_hostname. - * - * Revision 1.104 2008/03/04 18:30:40 fabiankeil - * Remove the treat-forbidden-connects-like-blocks action. We now - * use the "blocked" page for forbidden CONNECT requests by default. - * - * Revision 1.103 2008/03/01 14:00:45 fabiankeil - * Let the block action take the reason for the block - * as argument and show it on the "blocked" page. - * - * Revision 1.102 2008/02/03 13:46:14 fabiankeil - * Add SOCKS5 support. Patch #1862863 by Eric M. Hopper with minor changes. - * - * Revision 1.101 2007/12/07 18:29:23 fabiankeil - * Remove now-obsolete csp member x_forwarded. - * - * Revision 1.100 2007/09/02 13:42:11 fabiankeil - * - Allow port lists in url patterns. - * - Ditch unused url_spec member pathlen. - * - * Revision 1.99 2007/07/21 11:51:36 fabiankeil - * As Hal noticed, checking dispatch_cgi() as the last cruncher - * looks like a bug if CGI requests are blocked unintentionally, - * so don't do it unless the user enabled the new config option - * "allow-cgi-request-crunching". - * - * Revision 1.98 2007/07/14 07:31:26 fabiankeil - * Add new csp->content_type flag (CT_DECLARED). - * - * Revision 1.97 2007/05/27 12:38:08 fabiankeil - * - Remove some left-overs from the switch to dedicated header filters. - * - Adjust "X-Filter: No" to disable dedicated header filters. - * - Prepare for forward-override{} - * - * Revision 1.96 2007/05/14 10:41:15 fabiankeil - * Ditch the csp member cookie_list[] which isn't used anymore. - * - * Revision 1.95 2007/04/30 15:02:19 fabiankeil - * Introduce dynamic pcrs jobs that can resolve variables. - * - * Revision 1.94 2007/04/15 16:39:21 fabiankeil - * Introduce tags as alternative way to specify which - * actions apply to a request. At the moment tags can be - * created based on client and server headers. - * - * Revision 1.93 2007/03/20 15:16:34 fabiankeil - * Use dedicated header filter actions instead of abusing "filter". - * Replace "filter-client-headers" and "filter-client-headers" - * with "server-header-filter" and "client-header-filter". - * - * Revision 1.92 2007/03/17 15:20:05 fabiankeil - * New config option: enforce-blocks. - * - * Revision 1.91 2007/03/05 13:28:03 fabiankeil - * Add some CSP_FLAGs for the header parsers. - * - * Revision 1.90 2007/02/07 10:36:16 fabiankeil - * Add new http_response member to save - * the reason why the response was generated. - * - * Revision 1.89 2007/01/27 13:09:16 fabiankeil - * Add new config option "templdir" to - * change the templates directory. - * - * Revision 1.88 2007/01/25 13:36:59 fabiankeil - * Add csp->error_message for failure reasons - * that should be embedded into the CGI pages. - * - * Revision 1.87 2007/01/01 19:36:37 fabiankeil - * Integrate a modified version of Wil Mahan's - * zlib patch (PR #895531). - * - * Revision 1.86 2006/12/31 17:56:37 fabiankeil - * Added config option accept-intercepted-requests - * and disabled it by default. - * - * Revision 1.85 2006/12/31 15:03:31 fabiankeil - * Fix gcc43 compiler warnings and a comment. - * - * Revision 1.84 2006/12/21 12:57:48 fabiankeil - * Add config option "split-large-forms" - * to work around the browser bug reported - * in BR #1570678. - * - * Revision 1.83 2006/12/06 19:26:29 fabiankeil - * Moved HTTP snipplets into jcc.c. They aren't - * used anywhere else. - * - * Revision 1.82 2006/09/20 15:50:31 fabiankeil - * Doubled size of HOSTENT_BUFFER_SIZE to mask - * problems with gethostbyname_r and some - * /etc/hosts configurations. Only a workaround - * until we get the real fix ready. - * Thanks Félix Rauch for reporting. - * - * Increased value of MAX_TRUSTED_REFERRERS from 64 to 512. - * - * Revision 1.81 2006/09/06 13:03:04 fabiankeil - * Respond with 400 and a short text message - * if the client tries to use Privoxy as FTP proxy. - * - * Revision 1.80 2006/09/06 10:43:32 fabiankeil - * Added config option enable-remote-http-toggle - * to specify if Privoxy should recognize special - * headers (currently only X-Filter) to change its - * behaviour. Disabled by default. - * - * Revision 1.79 2006/09/06 09:23:37 fabiankeil - * Make number of retries in case of forwarded-connect problems - * a config file option (forwarded-connect-retries) and use 0 as - * default. - * - * Revision 1.78 2006/08/31 16:25:06 fabiankeil - * Work around a buffer overflow that caused Privoxy to - * segfault if too many trusted referrers were used. Good - * enough for now, but should be replaced with a real - * solution after the next release. - * - * Revision 1.77 2006/08/21 12:50:51 david__schmidt - * Formatting cleanup - * - * Revision 1.76 2006/08/14 08:25:19 fabiankeil - * Split filter-headers{} into filter-client-headers{} - * and filter-server-headers{}. - * Added parse_header_time() to share some code. - * Replaced timegm() with mktime(). - * - * Revision 1.75 2006/08/03 02:46:41 david__schmidt - * Incorporate Fabian Keil's patch work: * http://www.fabiankeil.de/sourcecode/privoxy/ - * - * Revision 1.74 2006/07/18 14:48:47 david__schmidt - * Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch) - * with what was really the latest development (the v_3_0_branch branch) - * - * Revision 1.72.2.7 2006/01/29 23:10:56 david__schmidt - * Multiple filter file support - * - * Revision 1.72.2.6 2004/10/03 12:53:46 david__schmidt - * Add the ability to check jpeg images for invalid - * lengths of comment blocks. Defensive strategy - * against the exploit: - * Microsoft Security Bulletin MS04-028 - * Buffer Overrun in JPEG Processing (GDI+) Could - * Allow Code Execution (833987) - * Enabled with +inspect-jpegs in actions files. - * - * Revision 1.72.2.5 2004/01/30 15:29:29 oes - * Updated the copyright note - * - * Revision 1.72.2.4 2004/01/13 16:12:14 oes - * Fixed double slash in USER_MANUAL_URL. Closes BR #867088. - * - * Revision 1.72.2.3 2003/03/11 11:54:37 oes - * Introduced RC_FLAG_* flags for use in child process return code - * - * Revision 1.72.2.2 2002/11/28 18:15:44 oes - * Added flag to each cgi_dispatcher that allows or denies - * external linking and removed const qualifier from - * struct list_entry.str. - * - * Revision 1.72.2.1 2002/08/10 11:25:18 oes - * - Include config.h for access to config data - * - Include depending on where they are - * - * Revision 1.72 2002/05/14 21:35:49 oes - * Split HELP_LINK_PREFIX into ACTIONS_HELP_PREFIX and CONFIG_HELP_PREFIX - * because of split in user-manual - * - * Revision 1.71 2002/05/12 21:39:36 jongfoster - * - Adding Doxygen-style comments to structures and #defines. - * - * Revision 1.70 2002/05/12 16:05:50 jongfoster - * Fixing ACTION_MASK_ALL to be unsigned long rather than - * just unsigned int. I don't know if anyone is porting - * Privoxy to 16-bit platforms, but if so, +limit-connect - * wouldn't have worked because of this bug. - * - * Revision 1.69 2002/05/08 16:00:16 oes - * Added size member to struct iob, so it can - * be alloced larger than needed. - * - * Revision 1.68 2002/04/26 12:56:00 oes - * Killed REDIRECT_URL, added USER_MANUAL_URL and HELP_LINK_PREFIX - * - * Revision 1.67 2002/04/24 02:12:43 oes - * - Jon's multiple AF patch: - * - Make csp->actions_list an array - * - #define MAX_AF_FILES - * - Moved CGI_PARAM_LEN_MAX (500) here - * - * Revision 1.66 2002/04/15 19:06:43 jongfoster - * Typos - * - * Revision 1.65 2002/04/04 00:36:36 gliptak - * always use pcre for matching - * - * Revision 1.64 2002/04/03 22:28:03 gliptak - * Removed references to gnu_regex - * - * Revision 1.63 2002/03/31 17:19:00 jongfoster - * Win32 only: Enabling STRICT to fix a VC++ compile warning. - * - * Revision 1.62 2002/03/26 22:48:49 swa - * new homepage url - * - * Revision 1.61 2002/03/26 22:29:55 swa - * we have a new homepage! - * - * Revision 1.60 2002/03/24 15:52:17 jongfoster - * Changing CGI URL prefixes for new name - * - * Revision 1.59 2002/03/24 15:23:33 jongfoster - * Name changes - * - * Revision 1.58 2002/03/24 13:25:43 swa - * name change related issues - * - * 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 - * - * *********************************************************************/ - + /* Declare struct FILE for vars and funcs. */ #include @@ -731,9 +44,16 @@ /* Needed for pcre choice */ #include "config.h" -#ifdef HAVE_RFC2553 /* Need for struct sockaddr_storage */ -#include +#ifdef HAVE_RFC2553 +# ifndef _WIN32 +# include +# include +# else +# include +# include + typedef unsigned short in_port_t; +# endif #endif @@ -785,10 +105,6 @@ #endif -#ifdef __cplusplus -extern "C" { -#endif - #ifdef _WIN32 typedef SOCKET jb_socket; @@ -818,16 +134,19 @@ typedef int jb_socket; * A standard error code. This should be JB_ERR_OK or one of the JB_ERR_xxx * series of errors. */ -typedef int jb_err; +enum privoxy_err +{ + JB_ERR_OK = 0, /**< Success, no error */ + JB_ERR_MEMORY = 1, /**< Out of memory */ + JB_ERR_CGI_PARAMS = 2, /**< Missing or corrupt CGI parameters */ + JB_ERR_FILE = 3, /**< Error opening, reading or writing a file */ + JB_ERR_PARSE = 4, /**< Error parsing file */ + JB_ERR_MODIFIED = 5, /**< File has been modified outside of the + CGI actions editor. */ + JB_ERR_COMPRESS = 6 /**< Error on decompression */ +}; -#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. */ -#define JB_ERR_COMPRESS 6 /**< Error on decompression */ +typedef enum privoxy_err jb_err; /** * This macro is used to free a pointer that may be NULL. @@ -838,19 +157,17 @@ typedef int jb_err; /** - * 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". - * + * Macro definitions for platforms where isspace() and friends + * are macros that use their argument directly as an array index + * and thus better be positive. Supposedly that's the case on + * some unspecified Solaris versions. * Note: Remember to #include 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)) +#define privoxy_isdigit(__X) isdigit((int)(unsigned char)(__X)) +#define privoxy_isupper(__X) isupper((int)(unsigned char)(__X)) +#define privoxy_toupper(__X) toupper((int)(unsigned char)(__X)) +#define privoxy_tolower(__X) tolower((int)(unsigned char)(__X)) +#define privoxy_isspace(__X) isspace((int)(unsigned char)(__X)) /** * Use for statically allocated buffers if you have no other choice. @@ -868,7 +185,7 @@ typedef int jb_err; * 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 + * to accommodate 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. */ @@ -879,14 +196,6 @@ typedef int jb_err; */ #define HOSTENT_BUFFER_SIZE 2048 -/** - * Do not use. Originally this was so that you can - * say "while (FOREVER) { ...do something... }". - * However, this gives a warning with some compilers (e.g. VC++). - * Instead, use "for (;;) { ...do something... }". - */ -#define FOREVER 1 - /** * Default TCP/IP address to listen on, as a string. * Set to "127.0.0.1:8118". @@ -910,7 +219,7 @@ struct list_entry * your own code. */ char *str; - + /** Next entry in the linked list, or NULL if no more. */ struct list_entry *next; }; @@ -981,9 +290,11 @@ struct http_request char *host_ip_addr_str; /**< String with dotted decimal representation of host's IP. NULL before connect_to() */ +#ifndef FEATURE_EXTENDED_HOST_PATTERNS 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) */ +#endif /* ndef FEATURE_EXTENDED_HOST_PATTERNS */ }; /** @@ -991,42 +302,40 @@ struct http_request * the requested resource. Mostly ordered the way they are checked * for in chat(). */ -#define RSP_REASON_UNSUPPORTED 1 -#define RSP_REASON_BLOCKED 2 -#define RSP_REASON_UNTRUSTED 3 -#define RSP_REASON_REDIRECTED 4 -#define RSP_REASON_CGI_CALL 5 -#define RSP_REASON_NO_SUCH_DOMAIN 6 -#define RSP_REASON_FORWARDING_FAILED 7 -#define RSP_REASON_CONNECT_FAILED 8 -#define RSP_REASON_OUT_OF_MEMORY 9 -#define RSP_REASON_INTERNAL_ERROR 10 +enum crunch_reason +{ + UNSUPPORTED, + BLOCKED, + UNTRUSTED, + REDIRECTED, + CGI_CALL, + NO_SUCH_DOMAIN, + FORWARDING_FAILED, + CONNECT_FAILED, + OUT_OF_MEMORY, + INTERNAL_ERROR, + CONNECTION_TIMEOUT, + NO_SERVER_DATA +}; /** * 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 browser (e.g. images). */ - int reason; /**< Why the response was generated in the first place. */ + 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 browser (e.g. images). */ + enum crunch_reason crunch_reason; /**< Why the response was generated in the first place. */ }; -/** - * A URL or a tag pattern. - */ struct url_spec { - /** The string which was parsed to produce this url_spec. - Used for debugging or display only. */ - char *spec; - #ifdef FEATURE_EXTENDED_HOST_PATTERNS regex_t *host_regex;/**< Regex for host matching */ #else @@ -1039,17 +348,25 @@ struct url_spec char *port_list; /**< List of acceptable ports, or NULL to match all ports */ regex_t *preg; /**< Regex for matching path part */ - regex_t *tag_regex; /**< Regex for matching tags */ }; /** - * If you declare a static url_spec, this is the value to initialize it to zero. + * A URL or a tag pattern. */ -#ifndef FEATURE_EXTENDED_HOST_PATTERNS -#define URL_SPEC_INITIALIZER { NULL, NULL, NULL, 0, 0, NULL, NULL, NULL } -#else -#define URL_SPEC_INITIALIZER { NULL, NULL, NULL, NULL, NULL } -#endif /* def FEATURE_EXTENDED_HOST_PATTERNS */ +struct pattern_spec +{ + /** The string which was parsed to produce this pattern_spec. + Used for debugging or display only. */ + char *spec; + + union + { + struct url_spec url_spec; + regex_t *tag_regex; + } pattern; + + unsigned int flags; /**< Bitmap with various pattern properties. */ +}; /** * Constant for host part matching in URLs. If set, indicates that the start of @@ -1068,6 +385,20 @@ struct url_spec */ #define ANCHOR_RIGHT 2 +/** Pattern spec bitmap: It's an URL pattern. */ +#define PATTERN_SPEC_URL_PATTERN 0x00000001UL + +/** Pattern spec bitmap: It's a TAG pattern. */ +#define PATTERN_SPEC_TAG_PATTERN 0x00000002UL + +/** Pattern spec bitmap: It's a NO-REQUEST-TAG pattern. */ +#define PATTERN_SPEC_NO_REQUEST_TAG_PATTERN 0x00000004UL + +/** Pattern spec bitmap: It's a NO-RESPONSE-TAG pattern. */ +#define PATTERN_SPEC_NO_RESPONSE_TAG_PATTERN 0x00000008UL + +/** Pattern spec bitmap: It's a CLIENT-TAG pattern. */ +#define PATTERN_SPEC_CLIENT_TAG_PATTERN 0x00000010UL /** * An I/O buffer. Holds a string which can be appended to, and can have data @@ -1084,17 +415,10 @@ struct iob /** * Return the number of bytes in the I/O buffer associated with the passed - * client_state pointer. - * May be zero. + * I/O buffer. May be zero. */ -#define IOB_PEEK(CSP) ((CSP->iob->cur > CSP->iob->eod) ? (CSP->iob->eod - CSP->iob->cur) : 0) - +#define IOB_PEEK(IOB) ((IOB->cur > IOB->eod) ? (IOB->eod - IOB->cur) : 0) -/** - * Remove any data in the I/O buffer associated with the passed - * client_state pointer. - */ -#define IOB_RESET(CSP) if(CSP->iob->buf) free(CSP->iob->buf); memset(CSP->iob, '\0', sizeof(CSP->iob)); /* Bits for csp->content_type bitmask: */ #define CT_TEXT 0x0001U /**< Suitable for pcrs filtering. */ @@ -1148,11 +472,11 @@ struct iob /** Action bitmap: Prevent compression. */ #define ACTION_NO_COMPRESSION 0x00000400UL /** Action bitmap: Change cookies to session only cookies. */ -#define ACTION_NO_COOKIE_KEEP 0x00000800UL -/** Action bitmap: Block rending cookies. */ -#define ACTION_NO_COOKIE_READ 0x00001000UL -/** Action bitmap: Block setting cookies. */ -#define ACTION_NO_COOKIE_SET 0x00002000UL +#define ACTION_SESSION_COOKIES_ONLY 0x00000800UL +/** Action bitmap: Block cookies coming from the client. */ +#define ACTION_CRUNCH_OUTGOING_COOKIES 0x00001000UL +/** Action bitmap: Block cookies coming from the server. */ +#define ACTION_CRUNCH_INCOMING_COOKIES 0x00002000UL /** Action bitmap: Override the forward settings in the config file */ #define ACTION_FORWARD_OVERRIDE 0x00004000UL /** Action bitmap: Block as empty document */ @@ -1171,14 +495,16 @@ struct iob #define ACTION_CRUNCH_CLIENT_HEADER 0x00200000UL /** Action bitmap: Enable text mode by force */ #define ACTION_FORCE_TEXT_MODE 0x00400000UL -/** Action bitmap: Enable text mode by force */ +/** Action bitmap: Remove the "If-None-Match" header. */ #define ACTION_CRUNCH_IF_NONE_MATCH 0x00800000UL -/** Action bitmap: Enable content-dispostion crunching */ +/** Action bitmap: Enable content-disposition crunching */ #define ACTION_HIDE_CONTENT_DISPOSITION 0x01000000UL /** Action bitmap: Replace or block Last-Modified header */ #define ACTION_OVERWRITE_LAST_MODIFIED 0x02000000UL /** Action bitmap: Replace or block Accept-Language header */ #define ACTION_HIDE_ACCEPT_LANGUAGE 0x04000000UL +/** Action bitmap: Limit the cookie lifetime */ +#define ACTION_LIMIT_COOKIE_LIFETIME 0x08000000UL /** Action string index: How to deanimate GIFs */ @@ -1201,7 +527,7 @@ struct iob #define ACTION_STRING_LANGUAGE 8 /** Action string index: Replacement for the "Content-Type:" header*/ #define ACTION_STRING_CONTENT_TYPE 9 -/** Action string index: Replacement for the "content-dispostion:" header*/ +/** Action string index: Replacement for the "content-disposition:" header*/ #define ACTION_STRING_CONTENT_DISPOSITION 10 /** Action string index: Replacement for the "If-Modified-Since:" header*/ #define ACTION_STRING_IF_MODIFIED_SINCE 11 @@ -1217,8 +543,10 @@ struct iob #define ACTION_STRING_BLOCK 16 /** Action string index: what to do with the "X-Forwarded-For" header. */ #define ACTION_STRING_CHANGE_X_FORWARDED_FOR 17 +/** Action string index: how many minutes cookies should be valid. */ +#define ACTION_STRING_LIMIT_COOKIE_LIFETIME 18 /** Number of string actions. */ -#define ACTION_STRING_COUNT 18 +#define ACTION_STRING_COUNT 19 /* To make the ugly hack in sed easier to understand */ @@ -1238,7 +566,9 @@ struct iob /** Index into current_action_spec::multi[] for server-header tags to apply. */ #define ACTION_MULTI_SERVER_HEADER_TAGGER 5 /** Number of multi-string actions. */ -#define ACTION_MULTI_COUNT 6 +#define ACTION_MULTI_EXTERNAL_FILTER 6 +/** Number of multi-string actions. */ +#define ACTION_MULTI_COUNT 7 /** @@ -1275,7 +605,7 @@ struct action_spec unsigned long add; /**< Actions to add. A bit set to "1" means add action. */ /** - * Paramaters for those actions that require them. + * Parameters for those actions that require them. * Each entry is valid if & only if the corresponding entry in "flags" is * set. */ @@ -1302,7 +632,7 @@ struct action_spec */ struct url_actions { - struct url_spec url[1]; /**< The URL or tag pattern. */ + struct pattern_spec url[1]; /**< The URL or tag pattern. */ struct action_spec *action; /**< Action settings that might be shared with the list entry before or after the current @@ -1311,20 +641,53 @@ struct url_actions struct url_actions *next; /**< Next action section in file, or NULL. */ }; +enum forwarder_type { + /**< Don't use a SOCKS server, forward to a HTTP proxy directly */ + SOCKS_NONE = 0, + /**< original SOCKS 4 protocol */ + SOCKS_4 = 40, + /**< SOCKS 4A, DNS resolution is done by the SOCKS server */ + SOCKS_4A = 41, + /**< SOCKS 5 with hostnames, DNS resolution is done by the SOCKS server */ + SOCKS_5 = 50, + /**< Like SOCKS5, but uses non-standard Tor extensions (currently only optimistic data) */ + SOCKS_5T, + /**< + * Don't use a SOCKS server, forward to the specified webserver. + * The difference to SOCKS_NONE is that a request line without + * full URL is sent. + */ + FORWARD_WEBSERVER, +}; /* - * Structure to make sure we only reuse the server socket - * if the host and forwarding settings are the same. + * Structure to hold the server socket and the information + * required to make sure we only reuse the connection if + * the host and forwarding settings are the same. */ struct reusable_connection { jb_socket sfd; int in_use; - time_t timestamp; + time_t timestamp; /* XXX: rename? */ + + time_t request_sent; + time_t response_received; + + /* + * Number of seconds after which this + * connection will no longer be reused. + */ + unsigned int keep_alive_timeout; + /* + * Number of requests that were sent to this connection. + * This is currently only for debugging purposes. + */ + unsigned int requests_sent_total; char *host; int port; - int forwarder_type; + enum forwarder_type forwarder_type; char *gateway_host; int gateway_port; char *forward_host; @@ -1335,7 +698,7 @@ struct reusable_connection /* * Flags for use in csp->flags */ - + /** * Flag for csp->flags: Set if this client is processing data. * Cleared when the thread associated with this structure dies. @@ -1412,32 +775,109 @@ struct reusable_connection */ #define CSP_FLAG_SERVER_CONNECTION_KEEP_ALIVE 0x00001000U -#ifdef FEATURE_CONNECTION_KEEP_ALIVE /** * Flag for csp->flags: Set if the server specified the * content length. */ -#define CSP_FLAG_CONTENT_LENGTH_SET 0x00002000U +#define CSP_FLAG_SERVER_CONTENT_LENGTH_SET 0x00002000U + +/** + * Flag for csp->flags: Set if we know the content length, + * either because the server set it, or we figured it out + * on our own. + */ +#define CSP_FLAG_CONTENT_LENGTH_SET 0x00004000U /** * Flag for csp->flags: Set if the client wants to keep * the connection alive. */ -#define CSP_FLAG_CLIENT_CONNECTION_KEEP_ALIVE 0x00004000U -#endif /* def FEATURE_CONNECTION_KEEP_ALIVE */ +#define CSP_FLAG_CLIENT_CONNECTION_KEEP_ALIVE 0x00008000U + +/** + * Flag for csp->flags: Set if we think we got the whole + * client request and shouldn't read any additional data + * coming from the client until the current request has + * been dealt with. + */ +#define CSP_FLAG_CLIENT_REQUEST_COMPLETELY_READ 0x00010000U + +/** + * Flag for csp->flags: Set if the server promised us to + * keep the connection open for a known number of seconds. + */ +#define CSP_FLAG_SERVER_KEEP_ALIVE_TIMEOUT_SET 0x00020000U + +/** + * Flag for csp->flags: Set if we think we can't reuse + * the server socket. XXX: It's also set after sabotaging + * pipelining attempts which is somewhat inconsistent with + * the name. + */ +#define CSP_FLAG_SERVER_SOCKET_TAINTED 0x00040000U + +/** + * Flag for csp->flags: Set if the Proxy-Connection header + * is among the server headers. + */ +#define CSP_FLAG_SERVER_PROXY_CONNECTION_HEADER_SET 0x00080000U + +/** + * Flag for csp->flags: Set if the client reused its connection. + */ +#define CSP_FLAG_REUSED_CLIENT_CONNECTION 0x00100000U + +/** + * Flag for csp->flags: Set if the supports deflate compression. + */ +#define CSP_FLAG_CLIENT_SUPPORTS_DEFLATE 0x00200000U + +/** + * Flag for csp->flags: Set if the content has been deflated by Privoxy + */ +#define CSP_FLAG_BUFFERED_CONTENT_DEFLATED 0x00400000U + +/** + * Flag for csp->flags: Set if we already read (parts of) + * a pipelined request in which case the client obviously + * isn't done talking. + */ +#define CSP_FLAG_PIPELINED_REQUEST_WAITING 0x00800000U + +/** + * Flag for csp->flags: Set if the client body is chunk-encoded + */ +#define CSP_FLAG_CHUNKED_CLIENT_BODY 0x01000000U + +/** + * Flag for csp->flags: Set if the client set the Expect header + */ +#define CSP_FLAG_UNSUPPORTED_CLIENT_EXPECTATION 0x02000000U + +/** + * Flag for csp->flags: Set if we answered the request ourselve. + */ +#define CSP_FLAG_CRUNCHED 0x04000000U + +#ifdef FUZZ +/** + * Flag for csp->flags: Set if we are working with fuzzed input + */ +#define CSP_FLAG_FUZZED_INPUT 0x08000000U +#endif /* * Flags for use in return codes of child processes */ /** - * Flag for process return code: Set if exiting porcess has been toggled + * Flag for process return code: Set if exiting process has been toggled * during its lifetime. */ #define RC_FLAG_TOGGLED 0x10 /** - * Flag for process return code: Set if exiting porcess has blocked its + * Flag for process return code: Set if exiting process has blocked its * request. */ #define RC_FLAG_BLOCKED 0x20 @@ -1446,7 +886,13 @@ struct reusable_connection * Maximum number of actions/filter files. This limit is arbitrary - it's just used * to size an array. */ -#define MAX_AF_FILES 10 +#define MAX_AF_FILES 30 + +/** + * Maximum number of sockets to listen to. This limit is arbitrary - it's just used + * to size an array. + */ +#define MAX_LISTENING_SOCKETS 10 /** * The state of a Privoxy processing thread. @@ -1462,8 +908,8 @@ struct client_state /** socket to talk to client (web browser) */ jb_socket cfd; - /** socket to talk to server (web server or proxy) */ - jb_socket sfd; + /** Number of requests received on the client socket. */ + unsigned int requests_received_total; /** current connection to the server (may go through a proxy) */ struct reusable_connection server_connection; @@ -1484,6 +930,10 @@ struct client_state unsigned long ip_addr_long; #endif /* def HAVE_RFC2553 */ + /** The host name and port (as a string of the form ':') + of the server socket to which the client connected. */ + char *listen_addr_str; + /** The URL that was requested */ struct http_request http[1]; @@ -1494,15 +944,36 @@ struct client_state */ struct forward_spec * fwd; - /** An I/O buffer used for buffering data read from the network */ + /** An I/O buffer used for buffering data read from the server */ + /* XXX: should be renamed to server_iob */ struct iob iob[1]; + /** An I/O buffer used for buffering data read from the client */ + struct iob client_iob[1]; + + /** Buffer used to briefly store data read from the network + * before forwarding or processing it. + */ + char *receive_buffer; + size_t receive_buffer_size; + /** List of all headers for this request */ struct list headers[1]; /** List of all tags that apply to this request */ struct list tags[1]; +#ifdef FEATURE_CLIENT_TAGS + /** List of all tags that apply to this client (assigned based on address) */ + struct list client_tags[1]; + /** The address of the client the request (presumably) came from. + * Either the address returned by accept(), or the address provided + * with the X-Forwarded-For header, provided Privoxy has been configured + * to use it. + */ + char *client_address; +#endif + /** MIME-Type key, see CT_* above */ unsigned int content_type; @@ -1515,13 +986,17 @@ struct client_state /** Length after content modification. */ unsigned long long content_length; -#ifdef FEATURE_CONNECTION_KEEP_ALIVE + /* XXX: is this the right location? */ + /** Expected length of content after which we * should stop reading from the server socket. */ - /* XXX: is this the right location? */ unsigned long long expected_content_length; -#endif /* def FEATURE_CONNECTION_KEEP_ALIVE */ + + /** Expected length of content after which we + * should stop reading from the client socket. + */ + unsigned long long expected_client_content_length; #ifdef FEATURE_TRUST @@ -1535,11 +1010,17 @@ struct client_state * or NULL. Currently only used for socks errors. */ char *error_message; - - /** Next thread in linked list. Only read or modify from the main thread! */ - struct client_state *next; }; +/** + * List of client states so the main thread can keep + * track of them and garbage collect their resources. + */ +struct client_states +{ + struct client_states *next; + struct client_state csp; +}; /** * A function to add a header @@ -1602,7 +1083,7 @@ struct file_list * Read-only once the structure has been created. */ time_t lastmodified; - + /** * The full filename. */ @@ -1626,9 +1107,9 @@ struct file_list */ struct block_spec { - struct url_spec url[1]; /**< The URL pattern */ - int reject; /**< FIXME: Please document this! */ - struct block_spec *next; /**< Next entry in linked list */ + struct pattern_spec url[1]; /**< The URL pattern */ + int reject; /**< FIXME: Please document this! */ + struct block_spec *next; /**< Next entry in linked list */ }; /** @@ -1638,23 +1119,16 @@ struct block_spec #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 */ -#define SOCKS_5 50 /**< as modified for hosts w/o external DNS */ - - /** * How to forward a connection to a parent proxy. */ struct forward_spec { /** URL pattern that this forward_spec is for. */ - struct url_spec url[1]; + struct pattern_spec url[1]; /** Connection type. Must be SOCKS_NONE, SOCKS_4, SOCKS_4A or SOCKS_5. */ - int type; + enum forwarder_type type; /** SOCKS server hostname. Only valid if "type" is SOCKS_4 or SOCKS_4A. */ char *gateway_host; @@ -1673,19 +1147,25 @@ struct forward_spec }; -/** - * Initializer for a static struct forward_spec. - */ -#define FORWARD_SPEC_INITIALIZER { { URL_SPEC_INITIALIZER }, 0, NULL, 0, NULL, 0, NULL } - /* Supported filter types */ -#define FT_CONTENT_FILTER 0 -#define FT_CLIENT_HEADER_FILTER 1 -#define FT_SERVER_HEADER_FILTER 2 -#define FT_CLIENT_HEADER_TAGGER 3 -#define FT_SERVER_HEADER_TAGGER 4 +enum filter_type +{ + FT_CONTENT_FILTER = 0, + FT_CLIENT_HEADER_FILTER = 1, + FT_SERVER_HEADER_FILTER = 2, + FT_CLIENT_HEADER_TAGGER = 3, + FT_SERVER_HEADER_TAGGER = 4, +#ifdef FEATURE_EXTERNAL_FILTERS + FT_EXTERNAL_CONTENT_FILTER = 5, +#endif + FT_INVALID_FILTER = 42, +}; +#ifdef FEATURE_EXTERNAL_FILTERS +#define MAX_FILTER_TYPES 6 +#else #define MAX_FILTER_TYPES 5 +#endif /** * This struct represents one filter (one block) from @@ -1699,7 +1179,7 @@ struct re_filterfile_spec 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. */ - int type; /**< Filter type (content, client-header, server-header). */ + enum filter_type type; /**< Filter type (content, client-header, server-header). */ int dynamic; /**< Set to one if the pattern might contain variables and has to be recompiled for every request. */ struct re_filterfile_spec *next; /**< The pointer for chaining. */ @@ -1749,6 +1229,15 @@ struct access_control_list /** Maximum number of loaders (actions, re_filter, ...) */ #define NLOADERS 8 +/** + * This struct represents a client-spcific-tag and it's description + */ +struct client_tag_spec +{ + char *name; /**< Name from "client-specific-tag bla" directive */ + char *description; /**< Description from "client-specific-tag-description " directive */ + struct client_tag_spec *next; /**< The pointer for chaining. */ +}; /** configuration_spec::feature_flags: CGI actions editor. */ #define RUNTIME_FEATURE_CGI_EDIT_ACTIONS 1U @@ -1777,6 +1266,18 @@ struct access_control_list /** configuration_spec::feature_flags: Share outgoing connections between different client connections. */ #define RUNTIME_FEATURE_CONNECTION_SHARING 256U +/** configuration_spec::feature_flags: Pages blocked with +handle-as-empty-doc get a return status of 200 OK. */ +#define RUNTIME_FEATURE_EMPTY_DOC_RETURNS_OK 512U + +/** configuration_spec::feature_flags: Buffered content is sent compressed if the client supports it. */ +#define RUNTIME_FEATURE_COMPRESSION 1024U + +/** configuration_spec::feature_flags: Pipelined requests are served instead of being discarded. */ +#define RUNTIME_FEATURE_TOLERATE_PIPELINING 2048U + +/** configuration_spec::feature_flags: Proxy authentication headers are forwarded instead of removed. */ +#define RUNTIME_FEATURE_FORWARD_PROXY_AUTHENTICATION_HEADERS 4096U + /** * Data loaded from the configuration file. * @@ -1786,19 +1287,11 @@ struct configuration_spec { /** What to log */ int debug; - + /** Nonzero to enable multithreading. */ int multi_threaded; - /** - * Bitmask of features that can be enabled/disabled through the config - * file. Currently defined bits: - * - * - RUNTIME_FEATURE_CGI_EDIT_ACTIONS - * - RUNTIME_FEATURE_CGI_TOGGLE - * - RUNTIME_FEATURE_HTTP_TOGGLE - * - RUNTIME_FEATURE_SPLIT_LARGE_FORMS - */ + /** Bitmask of features that can be controlled through the config file. */ unsigned feature_flags; /** The log file name. */ @@ -1810,6 +1303,11 @@ struct configuration_spec /** The directory for customized CGI templates. */ const char *templdir; +#ifdef FEATURE_EXTERNAL_FILTERS + /** The template used to create temporary files. */ + const char *temporary_directory; +#endif + /** The log file directory. */ const char *logdir; @@ -1834,18 +1332,35 @@ struct configuration_spec /** The short names of the pcre filter files. */ const char *re_filterfile_short[MAX_AF_FILES]; + /**< List of ordered client header names. */ + struct list ordered_client_headers[1]; + /** The hostname to show on CGI pages, or NULL to use the real one. */ const char *hostname; - /** IP address to bind to. Defaults to HADDR_DEFAULT == 127.0.0.1. */ - const char *haddr; + /** IP addresses to bind to. Defaults to HADDR_DEFAULT == 127.0.0.1. */ + const char *haddr[MAX_LISTENING_SOCKETS]; - /** Port to bind to. Defaults to HADDR_PORT == 8118. */ - int hport; + /** Trusted referring site that can be used to reach CGI + * pages that aren't marked as harmful. + */ + const char *trusted_cgi_referrer; + + /** Ports to bind to. Defaults to HADDR_PORT == 8118. */ + int hport[MAX_LISTENING_SOCKETS]; /** Size limit for IOB */ size_t buffer_limit; + /** Size of the receive buffer */ + size_t receive_buffer_size; + + /** Use accf_http(4) if available */ + int enable_accept_filter; + + /** Backlog passed to listen() */ + int listen_backlog; + #ifdef FEATURE_TRUST /** The file name of the trust file. */ @@ -1855,10 +1370,18 @@ struct configuration_spec struct list trust_info[1]; /** FIXME: DOCME: Document this. */ - struct url_spec *trust_list[MAX_TRUSTED_REFERRERS]; + struct pattern_spec *trust_list[MAX_TRUSTED_REFERRERS]; #endif /* def FEATURE_TRUST */ +#ifdef FEATURE_CLIENT_TAGS + struct client_tag_spec client_tags[1]; + + /* Maximum number of seconds a temporarily enabled tag stays enabled. */ + unsigned int client_tag_lifetime; +#endif /* def FEATURE_CLIENT_TAGS */ + int trust_x_forwarded_for; + #ifdef FEATURE_ACL /** The access control list (ACL). */ @@ -1879,8 +1402,15 @@ struct configuration_spec int socket_timeout; #ifdef FEATURE_CONNECTION_KEEP_ALIVE - /* Number of seconds after which an open connection will no longer be reused. */ + /* Maximum number of seconds after which an open connection will no longer be reused. */ unsigned int keep_alive_timeout; + + /* Assumed server-side keep alive timeout if none is specified. */ + unsigned int default_server_timeout; +#endif + +#ifdef FEATURE_COMPRESSION + int compression_level; #endif /** All options from the config file, HTML-formatted. */ @@ -1899,10 +1429,9 @@ struct configuration_spec /** Calculates the number of elements in an array, using sizeof. */ #define SZ(X) (sizeof(X) / sizeof(*X)) -#ifdef FEATURE_FORCE_LOAD -/** The force load URL prefix. */ +/** The force load URL prefix. Not behind an ifdef because + * it's always used for the show-status page. */ #define FORCE_PREFIX "/PRIVOXY-FORCE" -#endif /* def FEATURE_FORCE_LOAD */ #ifdef FEATURE_NO_GIFS /** The MIME type for images ("image/png" or "image/gif"). */ @@ -1912,12 +1441,12 @@ struct configuration_spec #endif /* def FEATURE_NO_GIFS */ -/* +/* * Hardwired URLs */ /** URL for the Privoxy home page. */ -#define HOME_PAGE_URL "http://www.privoxy.org/" +#define HOME_PAGE_URL "https://www.privoxy.org/" /** URL for the Privoxy user manual. */ #define USER_MANUAL_URL HOME_PAGE_URL VERSION "/user-manual/" @@ -1947,10 +1476,6 @@ struct configuration_spec */ #define CGI_PREFIX "http://" CGI_SITE_2_HOST CGI_SITE_2_PATH "/" -#ifdef __cplusplus -} /* extern "C" */ -#endif - #endif /* ndef PROJECT_H_INCLUDED */ /*