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annotate src/scanner.h @ 267:db12f6028f8b

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Added tag stable-6-0-33 for changeset 582cfb9c4031
author Carl Byington <carl@five-ten-sg.com>
date Sat, 21 Jul 2012 13:13:07 -0700
parents c0d2e99c0a1d
children f92f24950bd3
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1 /*
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2
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c7fc218686f5 gpl3, block mail to recipients that cannot reply
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3 Copyright (c) 2007 Carl Byington - 510 Software Group, released under
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4 the GPL version 3 or any later version at your choice available at
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5 http://www.gnu.org/licenses/gpl-3.0.txt
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6
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7 */
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8
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9 #ifndef scanner_include
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10 #define scanner_include
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11
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12 #include "dnsbl.h"
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13
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14 ////////////////////////////////////////////////
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15 // memory for the content scanner
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16 //
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17 class recorder
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18 {
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19 mlfiPriv *priv; // needed for syslog
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20 string_set *html_tags; // valid tags
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21 string_set *tlds; // valid tlds
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22 string_set *cctlds; // valid cctlds
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23 string_set hosts;
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24 size_t bad_html_tags;
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25 size_t binary_tags;
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26
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27 public:
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28 recorder(mlfiPriv *priv_, string_set &html_tags_, string_set &tlds_, string_set &cctlds_);
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29 ~recorder() { empty(); };
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30 void empty();
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31 void new_url(const char *host);
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32 void new_tag(const char *tag);
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33 void binary();
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34 void syslog(const char *buf) { my_syslog(priv, buf); };
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35 mlfiPriv *get_priv() { return priv; };
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36 string_set *get_cctlds() { return cctlds; };
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37 string_set *get_tlds() { return tlds; };
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38 string_set &get_hosts() { return hosts; };
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39 bool excessive_bad_tags(size_t limit){ return (limit > 0) && (bad_html_tags > limit) && (bad_html_tags > 3*binary_tags); };
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40 bool excessive_hosts(size_t limit) { return (limit > 0) && (hosts.size() > limit); };
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41
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42 };
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43
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44
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45 ////////////////////////////////////////////////
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46 // the content scanner
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47 //
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48 class fsa;
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49 class url_scanner {
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50 fsa *host_parser;
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51 fsa *tags_parser;
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52 fsa *urls_parser;
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53 fsa *urld_parser;
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54 fsa *html_parser;
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55 fsa *mime_parser;
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56 fsa *b64_parser;
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57 fsa *uu_parser;
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58
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59 public:
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60 url_scanner(recorder *memory);
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61 ~url_scanner();
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62 void scan(u_char *buffer, size_t length);
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63 };
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65 #endif