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144 lines
4.9 KiB
144 lines
4.9 KiB
/*
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* Copyright (C) 2006 Török Edvin <edwintorok@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#ifdef CL_EXPERIMENTAL
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#ifndef _PHISH_CHECK_H
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#define _PHISH_CHECK_H
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#ifdef HAVE_REGEX_H
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#include <regex.h>
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#endif
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#define CL_PHISH_BASE 100
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enum phish_status {CL_PHISH_NODECISION=0,CL_PHISH_CLEAN=CL_PHISH_BASE, CL_PHISH_CLEANUP_OK,CL_PHISH_HOST_OK, CL_PHISH_DOMAIN_OK,
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CL_PHISH_HOST_NOT_LISTED,
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CL_PHISH_REDIR_OK, CL_PHISH_HOST_REDIR_OK, CL_PHISH_DOMAIN_REDIR_OK,
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CL_PHISH_HOST_REVERSE_OK,CL_PHISH_DOMAIN_REVERSE_OK,
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CL_PHISH_WHITELISTED,CL_PHISH_HOST_WHITELISTED,
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CL_PHISH_CLEAN_CID,
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CL_PHISH_TEXTURL, CL_PHISH_MAILTO_OK,
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CL_PHISH_CLOAKED_UIU, CL_PHISH_NUMERIC_IP,CL_PHISH_HEX_URL,CL_PHISH_CLOAKED_NULL,CL_PHISH_SSL_SPOOF, CL_PHISH_NOMATCH};
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#define HOST_SUFFICIENT 1
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#define DOMAIN_SUFFICIENT (HOST_SUFFICIENT | 2)
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#define DO_REVERSE_LOOKUP 4
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#define CHECK_REDIR 8
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#define CHECK_SSL 16
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#define CHECK_CLOAKING 32
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#define CLEANUP_URL 64
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#define CHECK_DOMAIN_REVERSE 128
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#define CHECK_IMG_URL 256
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#define DOMAINLIST_REQUIRED 512
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/* img checking disabled by default */
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#define CL_PHISH_ALL_CHECKS (CLEANUP_URL|DOMAIN_SUFFICIENT|CHECK_SSL|CHECK_CLOAKING|DOMAINLIST_REQUIRED|CHECK_IMG_URL)
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struct string {
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int refcount;
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struct string* ref;
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char* data;
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};
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struct phishcheck {
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regex_t preg;
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regex_t preg_tld;
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regex_t preg_cctld;
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regex_t preg_numeric;
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char* url_regex;
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int is_disabled;
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};
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struct url_check {
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struct string realLink;
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struct string displayLink;
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unsigned short flags;
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};
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int phishingScan(message* m,const char* dir,cli_ctx* ctx,tag_arguments_t* hrefs);
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enum phish_status phishingCheck(const struct cl_engine* engine,struct url_check* urls);
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int whitelist_check(const struct cl_engine* engine,struct url_check* urls,int hostOnly);
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void url_check_init(struct url_check* urls);
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void string_free(struct string* str);
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void string_assign(struct string* dest,struct string* src);
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void string_assign_c(struct string* dest,char* data);
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int string_assign_dup(struct string* dest,const char* start,const char* end);
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void string_assign_ref(struct string* dest,struct string* ref,char* data);
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void free_if_needed(struct url_check* url);
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int get_host(const struct phishcheck* pchk,struct string* dest,const char* URL,int isReal,int* phishy);
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int isCountryCode(const struct phishcheck* s,const char* str);
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int isTLD(const struct phishcheck* s,const char* str,int len);
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void get_domain(const struct phishcheck* pchk,struct string* dest,struct string* host);
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int ip_reverse(struct url_check* urls,int isReal);
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void reverse_lookup(struct url_check* url,int isReal);
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int isNumeric(const char* host);
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int isSSL(const char* URL);
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int cleanupURL(struct string* URL,int isReal);
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void get_redirected_URL(struct string* URL);
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int isURL(const struct phishcheck* pchk,const char* URL);
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enum phish_status cleanupURLs(struct url_check* urls);
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int isNumericURL(const struct phishcheck* pchk, const char* URL);
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int url_get_host(const struct phishcheck* pchk, struct url_check* url,struct url_check* host_url,int isReal,int* phishy);
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void url_get_domain(const struct phishcheck* pchk, struct url_check* url,struct url_check* domains);
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enum phish_status phishy_map(int phishy,enum phish_status fallback);
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int isEncoded(const char* url);
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void phish_disable(struct cl_engine* engine,const char* reason);
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/* Global, non-thread-safe functions, call only once! */
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int phishing_init(struct cl_engine* engine);
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void phishing_done(struct cl_engine* engine);
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/* end of non-thread-safe functions */
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static inline int isPhishing(enum phish_status rc)
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{
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switch(rc) {
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case CL_PHISH_CLEAN:
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case CL_PHISH_CLEANUP_OK:
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case CL_PHISH_WHITELISTED:
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case CL_PHISH_HOST_WHITELISTED:
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case CL_PHISH_HOST_OK:
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case CL_PHISH_DOMAIN_OK:
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case CL_PHISH_REDIR_OK:
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case CL_PHISH_HOST_REDIR_OK:
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case CL_PHISH_DOMAIN_REDIR_OK:
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case CL_PHISH_HOST_REVERSE_OK:
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case CL_PHISH_DOMAIN_REVERSE_OK:
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case CL_PHISH_MAILTO_OK:
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case CL_PHISH_TEXTURL:
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case CL_PHISH_HOST_NOT_LISTED:
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case CL_PHISH_CLEAN_CID:
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return 0;
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case CL_PHISH_HEX_URL:
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case CL_PHISH_CLOAKED_NULL:
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case CL_PHISH_SSL_SPOOF:
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case CL_PHISH_CLOAKED_UIU:
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case CL_PHISH_NUMERIC_IP:
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case CL_PHISH_NOMATCH:
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return 1;
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default:
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return 1;
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}
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}
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const char* phishing_ret_toString(enum phish_status rc);
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#endif
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#endif
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