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1 | <?php |
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2 | /* URL Passing code to allow links from with in emails */ |
245a6892 |
3 | /* $Id$ */ |
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4 | |
5 | $url_parser_php = true; |
6 | |
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7 | function replaceBlock (&$in, $replace, $start, $end) { |
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8 | $begin = substr($in,0,$start); |
9 | $end = substr($in,$end,strlen($in)-$end); |
20a60f89 |
10 | $in = $begin.$replace.$end; |
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11 | } |
12 | |
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13 | // Having this defined in just one spot could help when changes need |
14 | // to be made to the pattern |
15 | // Make sure that the expression is evaluated case insensitively |
16 | // |
17 | // Here's pretty sophisticated IP matching: |
18 | // $IPMatch = '(2[0-5][0-9]|1?[0-9]{1,2})'; |
19 | // $IPMatch = '\[?' . $IPMatch . '(\.' . $IPMatch . '){3}\]?'; |
20 | // |
21 | // Here's enough: |
22 | $IP_RegExp_Match = '\\[?[0-9]{1,3}(\\.[0-9]{1,3}){3}\\]?'; |
23 | $Host_RegExp_Match = '(' . $IP_RegExp_Match . |
24 | '|[0-9a-z]([-.]?[0-9a-z])*\\.[a-z][a-z]+)'; |
25 | $Email_RegExp_Match = '[0-9a-z]([-_.]?[0-9a-z])*(%' . $Host_RegExp_Match . |
26 | ')?@' . $Host_RegExp_Match; |
27 | |
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28 | function parseEmail (&$body) { |
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29 | global $color, $Email_RegExp_Match; |
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30 | $Size = strlen($body); |
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31 | |
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32 | /* |
33 | This is here in case we ever decide to use highlighting of searched |
34 | text. this does it for email addresses |
35 | |
36 | if ($what && ($where == "BODY" || $where == "TEXT")) { |
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37 | eregi ($Email_RegExp_Match, $body, $regs); |
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38 | $oldaddr = $regs[0]; |
39 | if ($oldaddr) { |
40 | $newaddr = eregi_replace ($what, "<b><font color=\"$color[2]\">$what</font></font></b>", $oldaddr); |
41 | $body = str_replace ($oldaddr, "<a href=\"../src/compose.php?send_to=$oldaddr\">$newaddr</a>", $body); |
42 | } |
43 | } else { |
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44 | $body = eregi_replace ($Email_RegExp_Match, "<a href=\"../src/compose.php?send_to=\\0\">\\0</a>", $body); |
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45 | } |
46 | */ |
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47 | |
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48 | $body = eregi_replace ($Email_RegExp_Match, "<a href=\"../src/compose.php?send_to=\\0\">\\0</a>", $body); |
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49 | |
50 | // If there are any changes, it'll just get bigger. |
51 | if ($Size != strlen($body)) |
52 | return 1; |
53 | return 0; |
175e7218 |
54 | } |
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55 | |
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56 | |
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57 | // We don't want to re-initialize this stuff for every line. Save work |
58 | // and just do it once here. |
59 | $url_parser_url_tokens = array( |
60 | 'http://', |
61 | 'https://', |
62 | 'ftp://', |
63 | 'telnet:', // Special case -- doesn't need the slashes |
64 | 'gopher://', |
65 | 'news://'); |
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66 | |
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67 | $url_parser_poss_ends = array(' ', "\n", "\r", '<', '>', ".\r", ".\n", |
68 | '. ', ' ', ')', '(', '"', '<', '>', '.<', |
69 | ']', '[', '{', '}', "\240"); |
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70 | |
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71 | |
72 | function parseUrl (&$body) |
73 | { |
74 | global $url_parser_poss_ends, $url_parser_url_tokens;; |
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75 | $start = 0; |
76 | $target_pos = strlen($body); |
77 | |
78 | while ($start != $target_pos) |
e2ef6f4b |
79 | { |
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80 | $target_token = ''; |
81 | |
82 | // Find the first token to replace |
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83 | foreach ($url_parser_url_tokens as $the_token) |
8f7163e7 |
84 | { |
85 | $pos = strpos(strtolower($body), $the_token, $start); |
86 | if (is_int($pos) && $pos < $target_pos) |
87 | { |
88 | $target_pos = $pos; |
89 | $target_token = $the_token; |
90 | } |
91 | } |
92 | |
93 | // Look for email addresses between $start and $target_pos |
94 | $check_str = substr($body, $start, $target_pos); |
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95 | |
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96 | if (parseEmail($check_str)) |
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97 | { |
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98 | replaceBlock($body, $check_str, $start, $target_pos); |
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99 | $target_pos = strlen($check_str) + $start; |
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100 | } |
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101 | |
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102 | // If there was a token to replace, replace it |
103 | if ($target_token != '') |
104 | { |
105 | // Find the end of the URL |
106 | $end=strlen($body); |
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107 | foreach ($url_parser_poss_ends as $key => $val) |
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108 | { |
109 | $enda = strpos($body,$val,$target_pos); |
110 | if (is_int($enda) && $enda < $end) |
111 | $end = $enda; |
112 | } |
113 | |
114 | // Extract URL |
115 | $url = substr($body, $target_pos, $end-$target_pos); |
116 | |
117 | // Replace URL with HyperLinked Url, requires 1 char in link |
118 | if ($url != '' && $url != $target_token) |
119 | { |
120 | $url_str = "<a href=\"$url\" target=\"_blank\">$url</a>"; |
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121 | replaceBlock($body,$url_str,$target_pos,$end); |
8f7163e7 |
122 | $target_pos += strlen($url_str); |
123 | } |
124 | else |
125 | { |
126 | // Not quite a valid link, skip ahead to next chance |
127 | $target_pos += strlen($target_token); |
128 | } |
129 | } |
130 | |
131 | // Move forward |
132 | $start = $target_pos; |
133 | $target_pos = strlen($body); |
134 | } |
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135 | } |
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136 | |
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137 | ?> |