1 #ifndef FILTERS_H_INCLUDED
2 #define FILTERS_H_INCLUDED
3 #define FILTERS_H_VERSION "$Id: filters.h,v 1.48 2016/12/24 16:00:49 fabiankeil Exp $"
4 /*********************************************************************
6 * File : $Source: /cvsroot/ijbswa/current/filters.h,v $
8 * Purpose : Declares functions to parse/crunch headers and pages.
10 * Copyright : Written by and Copyright (C) 2001-2010 the
11 * Privoxy team. http://www.privoxy.org/
13 * Based on the Internet Junkbuster originally written
14 * by and Copyright (C) 1997 Anonymous Coders and
15 * Junkbusters Corporation. http://www.junkbusters.com
17 * This program is free software; you can redistribute it
18 * and/or modify it under the terms of the GNU General
19 * Public License as published by the Free Software
20 * Foundation; either version 2 of the License, or (at
21 * your option) any later version.
23 * This program is distributed in the hope that it will
24 * be useful, but WITHOUT ANY WARRANTY; without even the
25 * implied warranty of MERCHANTABILITY or FITNESS FOR A
26 * PARTICULAR PURPOSE. See the GNU General Public
27 * License for more details.
29 * The GNU General Public License should be included with
30 * this file. If not, you can view it at
31 * http://www.gnu.org/copyleft/gpl.html
32 * or write to the Free Software Foundation, Inc., 59
33 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
35 *********************************************************************/
44 extern int block_acl(const struct access_control_addr *dst, const struct client_state *csp);
45 extern int acl_addr(const char *aspec, struct access_control_addr *aca);
46 #endif /* def FEATURE_ACL */
51 extern struct http_response *block_url(struct client_state *csp);
52 extern struct http_response *redirect_url(struct client_state *csp);
54 extern struct http_response *trust_url(struct client_state *csp);
55 #endif /* def FEATURE_TRUST */
61 extern int is_untrusted_url(const struct client_state *csp);
62 #endif /* def FEATURE_TRUST */
63 #ifdef FEATURE_IMAGE_BLOCKING
64 extern int is_imageurl(const struct client_state *csp);
65 #endif /* def FEATURE_IMAGE_BLOCKING */
66 extern int connect_port_is_forbidden(const struct client_state *csp);
69 * Determining applicable actions
71 extern void get_url_actions(struct client_state *csp,
72 struct http_request *http);
74 extern struct re_filterfile_spec *get_filter(const struct client_state *csp,
75 const char *requested_name,
76 enum filter_type requested_type);
79 * Determining parent proxies
81 extern const struct forward_spec *forward_url(struct client_state *csp,
82 const struct http_request *http);
85 * Content modification
87 extern char *execute_content_filters(struct client_state *csp);
88 extern char *execute_single_pcrs_command(char *subject, const char *pcrs_command, int *hits);
89 extern char *rewrite_url(char *old_url, const char *pcrs_command);
90 extern char *get_last_url(char *subject, const char *redirect_mode);
92 extern pcrs_job *compile_dynamic_pcrs_job_list(const struct client_state *csp, const struct re_filterfile_spec *b);
94 extern int content_requires_filtering(struct client_state *csp);
95 extern int content_filters_enabled(const struct current_action_spec *action);
96 extern int filters_available(const struct client_state *csp);
99 * Handling Max-Forwards:
101 extern struct http_response *direct_response(struct client_state *csp);
104 * Revision control strings from this header and associated .c file
106 extern const char filters_rcs[];
107 extern const char filters_h_rcs[];
110 extern char *gif_deanimate_response(struct client_state *csp);
111 extern jb_err remove_chunked_transfer_coding(char *buffer, size_t *size);
114 #endif /* ndef FILTERS_H_INCLUDED */