324 lines
13 KiB
C
324 lines
13 KiB
C
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#ifndef PARSERS_H_INCLUDED
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#define PARSERS_H_INCLUDED
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#define PARSERS_H_VERSION "$Id: parsers.h,v 1.49 2009/03/13 14:10:07 fabiankeil Exp $"
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/*********************************************************************
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*
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* File : $Source: /cvsroot/ijbswa/current/parsers.h,v $
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*
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* Purpose : Declares functions to parse/crunch headers and pages.
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* Functions declared include:
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* `add_to_iob', `client_cookie_adder', `client_from',
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* `client_referrer', `client_send_cookie', `client_ua',
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* `client_uagent', `client_x_forwarded',
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* `client_x_forwarded_adder', `client_xtra_adder',
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* `content_type', `crumble', `destroy_list', `enlist',
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* `flush_socket', `free_http_request', `get_header',
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* `list_to_text', `parse_http_request', `sed',
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* and `server_set_cookie'.
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*
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* Copyright : Written by and Copyright (C) 2001 the SourceForge
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* Privoxy team. http://www.privoxy.org/
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*
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* Based on the Internet Junkbuster originally written
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* by and Copyright (C) 1997 Anonymous Coders and
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* Junkbusters Corporation. http://www.junkbusters.com
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will
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* be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* The GNU General Public License should be included with
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* this file. If not, you can view it at
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* http://www.gnu.org/copyleft/gpl.html
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* or write to the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Revisions :
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* $Log: parsers.h,v $
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* Revision 1.49 2009/03/13 14:10:07 fabiankeil
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* Fix some more harmless warnings on amd64.
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*
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* Revision 1.48 2008/05/30 15:57:23 fabiankeil
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* Remove now-useless reference to debug.
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*
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* Revision 1.47 2008/05/21 20:12:11 fabiankeil
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* The whole point of strclean() is to modify the
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* first parameter, so don't mark it immutable,
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* even though the compiler lets us get away with it.
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*
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* Revision 1.46 2008/05/21 15:47:14 fabiankeil
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* Streamline sed()'s prototype and declare
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* the header parse and add structures static.
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*
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* Revision 1.45 2008/05/20 20:13:30 fabiankeil
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* Factor update_server_headers() out of sed(), ditch the
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* first_run hack and make server_patterns_light static.
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*
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* Revision 1.44 2008/05/20 16:05:09 fabiankeil
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* Move parsers structure definition from project.h to parsers.h.
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*
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* Revision 1.43 2008/05/10 13:23:38 fabiankeil
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* Don't provide get_header() with the whole client state
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* structure when it only needs access to csp->iob.
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*
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* Revision 1.42 2008/04/17 14:40:49 fabiankeil
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* Provide get_http_time() with the buffer size so it doesn't
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* have to blindly assume that the buffer is big enough.
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*
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* Revision 1.41 2008/04/16 16:38:21 fabiankeil
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* Don't pass the whole csp structure to flush_socket()
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* when it only needs a file descriptor and a buffer.
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*
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* Revision 1.40 2007/08/11 14:47:26 fabiankeil
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* Remove the prototypes for functions that are only
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* used in parsers.c and thus should be static.
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*
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* Revision 1.39 2007/06/01 16:31:55 fabiankeil
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* Change sed() to return a jb_err in preparation for forward-override{}.
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*
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* Revision 1.38 2007/03/25 14:27:11 fabiankeil
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* Let parse_header_time() return a jb_err code
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* instead of a pointer that can only be used to
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* check for NULL anyway.
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*
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* Revision 1.37 2007/03/20 15:22:17 fabiankeil
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* - Remove filter_client_header() and filter_client_header(),
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* filter_header() now checks the shiny new
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* CSP_FLAG_CLIENT_HEADER_PARSING_DONE flag instead.
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*
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* Revision 1.36 2007/03/05 13:25:32 fabiankeil
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* - Cosmetical changes for LOG_LEVEL_RE_FILTER messages.
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* - Handle "Cookie:" and "Connection:" headers a bit smarter
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* (don't crunch them just to recreate them later on).
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* - Add another non-standard time format for the cookie
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* expiration date detection.
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* - Fix a valgrind warning.
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*
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* Revision 1.35 2007/01/01 19:36:37 fabiankeil
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* Integrate a modified version of Wil Mahan's
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* zlib patch (PR #895531).
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*
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* Revision 1.34 2006/12/29 19:08:22 fabiankeil
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* Reverted parts of my last commit
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* to keep error handling working.
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*
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* Revision 1.33 2006/12/29 18:04:40 fabiankeil
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* Fixed gcc43 conversion warnings.
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*
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* Revision 1.32 2006/12/06 19:14:23 fabiankeil
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* Added prototype for get_destination_from_headers().
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*
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* Revision 1.31 2006/08/17 17:15:10 fabiankeil
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* - Back to timegm() using GnuPG's replacement if necessary.
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* Using mktime() and localtime() could add a on hour offset if
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* the randomize factor was big enough to lead to a summer/wintertime
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* switch.
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*
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* - Removed now-useless Privoxy 3.0.3 compatibility glue.
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*
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* - Moved randomization code into pick_from_range().
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*
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* - Changed parse_header_time definition.
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* time_t isn't guaranteed to be signed and
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* if it isn't, -1 isn't available as error code.
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* Changed some variable types in client_if_modified_since()
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* because of the same reason.
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*
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* Revision 1.30 2006/08/14 08:25:19 fabiankeil
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* Split filter-headers{} into filter-client-headers{}
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* and filter-server-headers{}.
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* Added parse_header_time() to share some code.
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* Replaced timegm() with mktime().
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*
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* Revision 1.29 2006/08/03 02:46:41 david__schmidt
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* Incorporate Fabian Keil's patch work:
http://www.fabiankeil.de/sourcecode/privoxy/
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*
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* Revision 1.28 2006/07/18 14:48:47 david__schmidt
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* Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch)
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* with what was really the latest development (the v_3_0_branch branch)
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*
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* Revision 1.26.2.1 2002/09/25 14:52:46 oes
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* Added basic support for OPTIONS and TRACE HTTP methods:
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* - New parser function client_max_forwards which decrements
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* the Max-Forwards HTTP header field of OPTIONS and TRACE
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* requests by one before forwarding
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* - New parser function client_host which extracts the host
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* and port information from the HTTP header field if the
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* request URI was not absolute
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* - Don't crumble and re-add the Host: header, but only generate
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* and append if missing
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*
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* Revision 1.26 2002/05/08 15:59:53 oes
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* Changed add_to_iob signature (now returns jb_err)
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*
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* Revision 1.25 2002/03/26 22:29:55 swa
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* we have a new homepage!
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*
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* Revision 1.24 2002/03/24 13:25:43 swa
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* name change related issues
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*
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* Revision 1.23 2002/03/13 00:27:05 jongfoster
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* Killing warnings
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*
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* Revision 1.22 2002/03/09 20:03:52 jongfoster
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* - Making various functions return int rather than size_t.
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* (Undoing a recent change). Since size_t is unsigned on
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* Windows, functions like read_socket that return -1 on
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* error cannot return a size_t.
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*
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* THIS WAS A MAJOR BUG - it caused frequent, unpredictable
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* crashes, and also frequently caused JB to jump to 100%
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* CPU and stay there. (Because it thought it had just
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* read ((unsigned)-1) == 4Gb of data...)
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*
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* - The signature of write_socket has changed, it now simply
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* returns success=0/failure=nonzero.
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*
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* - Trying to get rid of a few warnings --with-debug on
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* Windows, I've introduced a new type "jb_socket". This is
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* used for the socket file descriptors. On Windows, this
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* is SOCKET (a typedef for unsigned). Everywhere else, it's
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* an int. The error value can't be -1 any more, so it's
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* now JB_INVALID_SOCKET (which is -1 on UNIX, and in
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* Windows it maps to the #define INVALID_SOCKET.)
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*
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* - The signature of bind_port has changed.
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*
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* Revision 1.21 2002/03/07 03:46:17 oes
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* Fixed compiler warnings
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*
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* Revision 1.20 2002/02/20 23:15:13 jongfoster
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* Parsing functions now handle out-of-memory gracefully by returning
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* an error code.
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*
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* Revision 1.19 2002/01/17 21:03:47 jongfoster
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* Moving all our URL and URL pattern parsing code to urlmatch.c.
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*
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* Revision 1.18 2001/10/26 17:40:23 oes
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* Introduced get_header_value()
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* Removed client_accept()
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*
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* Revision 1.17 2001/10/13 12:47:32 joergs
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* Removed client_host, added client_host_adder
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*
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* Revision 1.16 2001/10/07 18:50:16 oes
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* Added server_content_encoding, renamed server_transfer_encoding
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*
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* Revision 1.15 2001/10/07 18:01:55 oes
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* Changed server_http11 to server_http
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*
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* Revision 1.14 2001/10/07 15:45:48 oes
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* added client_accept_encoding, client_te, client_accept_encoding_adder
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*
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* renamed content_type and content_length
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*
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* fixed client_host and strclean prototypes
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*
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* Revision 1.13 2001/09/29 12:56:03 joergs
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* IJB now changes HTTP/1.1 to HTTP/1.0 in requests and answers.
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*
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* Revision 1.12 2001/09/13 23:05:50 jongfoster
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* Changing the string paramater to the header parsers a "const".
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*
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* Revision 1.11 2001/07/31 14:46:53 oes
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* Added prototype for connection_close_adder
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*
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* Revision 1.10 2001/07/30 22:08:36 jongfoster
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* Tidying up #defines:
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* - All feature #defines are now of the form FEATURE_xxx
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* - Permanently turned off WIN_GUI_EDIT
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* - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
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*
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* Revision 1.9 2001/07/29 18:43:08 jongfoster
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* Changing #ifdef _FILENAME_H to FILENAME_H_INCLUDED, to conform to
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* ANSI C rules.
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*
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* Revision 1.8 2001/07/13 14:01:54 oes
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* Removed all #ifdef PCRS
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*
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* Revision 1.7 2001/06/29 13:32:14 oes
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* Removed logentry from cancelled commit
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*
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* Revision 1.6 2001/06/03 19:12:38 oes
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* deleted const struct interceptors
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*
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* Revision 1.5 2001/05/31 21:30:33 jongfoster
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* Removed list code - it's now in list.[ch]
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* Renamed "permission" to "action", and changed many features
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* to use the actions file rather than the global config.
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*
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* Revision 1.4 2001/05/27 13:19:06 oes
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* Patched Joergs solution for the content-length in.
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*
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* Revision 1.3 2001/05/26 13:39:32 jongfoster
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* Only crunches Content-Length header if applying RE filtering.
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* Without this fix, Microsoft Windows Update wouldn't work.
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*
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* Revision 1.2 2001/05/20 01:21:20 jongfoster
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* Version 2.9.4 checkin.
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* - Merged popupfile and cookiefile, and added control over PCRS
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* filtering, in new "permissionsfile".
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* - Implemented LOG_LEVEL_FATAL, so that if there is a configuration
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* file error you now get a message box (in the Win32 GUI) rather
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* than the program exiting with no explanation.
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* - Made killpopup use the PCRS MIME-type checking and HTTP-header
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* skipping.
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* - Removed tabs from "config"
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* - Moved duplicated url parsing code in "loaders.c" to a new funcition.
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* - Bumped up version number.
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*
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* Revision 1.1.1.1 2001/05/15 13:59:01 oes
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* Initial import of version 2.9.3 source tree
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*
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*
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*********************************************************************/
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#include "project.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Used for sed()'s second argument. */
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#define FILTER_CLIENT_HEADERS 0
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#define FILTER_SERVER_HEADERS 1
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extern long flush_socket(jb_socket fd, struct iob *iob);
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extern jb_err add_to_iob(struct client_state *csp, char *buf, long n);
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extern jb_err decompress_iob(struct client_state *csp);
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extern char *get_header(struct iob *iob);
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extern char *get_header_value(const struct list *header_list, const char *header_name);
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extern jb_err sed(struct client_state *csp, int filter_server_headers);
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extern jb_err update_server_headers(struct client_state *csp);
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extern void get_http_time(int time_offset, char *buf, size_t buffer_size);
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extern jb_err get_destination_from_headers(const struct list *headers, struct http_request *http);
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#ifdef FEATURE_FORCE_LOAD
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extern int strclean(char *string, const char *substring);
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#endif /* def FEATURE_FORCE_LOAD */
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/* Revision control strings from this header and associated .c file */
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extern const char parsers_rcs[];
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extern const char parsers_h_rcs[];
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#ifdef __cplusplus
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} /* extern "C" */
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|
#endif
|
|||
|
|
|
|||
|
|
#endif /* ndef PARSERS_H_INCLUDED */
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
Local Variables:
|
|||
|
|
tab-width: 3
|
|||
|
|
end:
|
|||
|
|
*/
|