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- #ifndef FILTERS_H_INCLUDED
- #define FILTERS_H_INCLUDED
- /*********************************************************************
- *
- * File : $Source: /cvsroot/ijbswa/current/filters.h,v $
- *
- * Purpose : Declares functions to parse/crunch headers and pages.
- *
- * Copyright : Written by and Copyright (C) 2001-2010 the
- * Privoxy team. https://www.privoxy.org/
- *
- * 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.
- *
- *********************************************************************/
- #include "project.h"
- /*
- * ACL checking
- */
- #ifdef FEATURE_ACL
- extern int block_acl(const struct access_control_addr *dst, const struct client_state *csp);
- extern int acl_addr(const char *aspec, struct access_control_addr *aca);
- #endif /* def FEATURE_ACL */
- /*
- * Interceptors
- */
- extern struct http_response *block_url(struct client_state *csp);
- extern struct http_response *redirect_url(struct client_state *csp);
- #ifdef FEATURE_TRUST
- extern struct http_response *trust_url(struct client_state *csp);
- #endif /* def FEATURE_TRUST */
- /*
- * Request inspectors
- */
- #ifdef FEATURE_TRUST
- extern int is_untrusted_url(const struct client_state *csp);
- #endif /* def FEATURE_TRUST */
- #ifdef FEATURE_IMAGE_BLOCKING
- extern int is_imageurl(const struct client_state *csp);
- #endif /* def FEATURE_IMAGE_BLOCKING */
- extern int connect_port_is_forbidden(const struct client_state *csp);
- /*
- * Determining applicable actions
- */
- extern void get_url_actions(struct client_state *csp,
- struct http_request *http);
- extern struct re_filterfile_spec *get_filter(const struct client_state *csp,
- const char *requested_name,
- enum filter_type requested_type);
- /*
- * Determining parent proxies
- */
- extern const struct forward_spec *forward_url(struct client_state *csp,
- const struct http_request *http);
- /*
- * Content modification
- */
- extern char *execute_content_filters(struct client_state *csp);
- extern char *execute_single_pcrs_command(char *subject, const char *pcrs_command, int *hits);
- extern char *rewrite_url(char *old_url, const char *pcrs_command);
- extern pcrs_job *compile_dynamic_pcrs_job_list(const struct client_state *csp, const struct re_filterfile_spec *b);
- extern int content_requires_filtering(struct client_state *csp);
- extern int content_filters_enabled(const struct current_action_spec *action);
- extern int filters_available(const struct client_state *csp);
- /*
- * Handling Max-Forwards:
- */
- extern struct http_response *direct_response(struct client_state *csp);
- #ifdef FUZZ
- extern char *gif_deanimate_response(struct client_state *csp);
- extern jb_err remove_chunked_transfer_coding(char *buffer, size_t *size);
- #endif
- #ifdef FEATURE_EXTENDED_STATISTICS
- extern void register_filter_for_statistics(const char *filter);
- extern void update_filter_statistics(const char *filter, int hits);
- extern void get_filter_statistics(const char *filter,
- unsigned long long *executions,
- unsigned long long *pages_modified,
- unsigned long long *hits);
- extern void register_block_reason_for_statistics(const char *block_reason);
- extern void get_block_reason_count(const char *block_reason,
- unsigned long long *count);
- #endif
- #endif /* ndef FILTERS_H_INCLUDED */
- /*
- Local Variables:
- tab-width: 3
- end:
- */
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