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1 | <?php |
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2 | /* URL Passing code to allow links from with in emails */ |
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3 | /* $Id$ */ |
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4 | |
5 | $url_parser_php = true; |
6 | |
7 | function replaceBlock ($in, $replace, $start, $end) { |
8 | $begin = substr($in,0,$start); |
9 | $end = substr($in,$end,strlen($in)-$end); |
10 | $ret = $begin.$replace.$end; |
11 | return $ret; |
12 | } |
13 | |
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14 | function parseEmail (&$body) { |
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15 | global $color; |
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16 | $Size = strlen($body); |
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17 | |
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18 | // Having this defined in just one spot could help when changes need |
19 | // to be made to the pattern |
20 | // Make sure that the expression is evaluated case insensitively |
21 | // |
22 | // Here's pretty sophisticated IP matching: |
23 | // $IPMatch = '(2[0-5][0-9]|1?[0-9]{1,2})'; |
24 | // $IPMatch = '\[?' . $IPMatch . '(\.' . $IPMatch . '){3}\]?'; |
25 | // |
26 | // Here's enough: |
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27 | $IPMatch = '\\[?[0-9]{1,3}(\\.[0-9]{1,3}){3}\\]?'; |
28 | $Host = '(' . $IPMatch . |
29 | '|[0-9a-z]([-.]?[0-9a-z])*\\.[a-wyz][a-z](fo|g|l|m|me|o|op|pa|ro|seum|t|u|v|z)?)'; |
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30 | $Expression = '[0-9a-z]([-_.]?[0-9a-z])*(%' . $Host . ')?@' . $Host; |
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31 | |
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32 | /* |
33 | This is here in case we ever decide to use highlighting of searched |
34 | text. this does it for email addresses |
35 | |
36 | if ($what && ($where == "BODY" || $where == "TEXT")) { |
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37 | eregi ($Expression, $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 | $body = eregi_replace ($Expression, "<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 | $body = eregi_replace ($Expression, "<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($body)) |
52 | return 1; |
53 | return 0; |
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54 | } |
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55 | |
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56 | |
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57 | function parseUrl (&$body) |
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58 | { |
59 | $url_tokens = array( |
60 | 'http://', |
61 | 'https://', |
62 | 'ftp://', |
63 | 'telnet:', // Special case -- doesn't need the slashes |
64 | 'gopher://', |
65 | 'news://'); |
66 | |
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67 | $poss_ends = array(' ', "\n", "\r", '<', '>', ".\r", ".\n", '. ', |
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68 | ' ', ')', '(', '"', '<', '>', '.<', ']', '[', '{', |
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69 | '}', "\240"); |
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70 | |
71 | $start = 0; |
72 | $target_pos = strlen($body); |
73 | |
74 | while ($start != $target_pos) |
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75 | { |
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76 | $target_token = ''; |
77 | |
78 | // Find the first token to replace |
79 | foreach ($url_tokens as $the_token) |
80 | { |
81 | $pos = strpos(strtolower($body), $the_token, $start); |
82 | if (is_int($pos) && $pos < $target_pos) |
83 | { |
84 | $target_pos = $pos; |
85 | $target_token = $the_token; |
86 | } |
87 | } |
88 | |
89 | // Look for email addresses between $start and $target_pos |
90 | $check_str = substr($body, $start, $target_pos); |
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91 | |
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92 | if (parseEmail($check_str)) |
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93 | { |
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94 | $body = replaceBlock($body, $check_str, $start, $target_pos); |
95 | $target_pos = strlen($check_str) + $start; |
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96 | } |
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97 | |
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98 | // If there was a token to replace, replace it |
99 | if ($target_token != '') |
100 | { |
101 | // Find the end of the URL |
102 | $end=strlen($body); |
103 | foreach ($poss_ends as $key => $val) |
104 | { |
105 | $enda = strpos($body,$val,$target_pos); |
106 | if (is_int($enda) && $enda < $end) |
107 | $end = $enda; |
108 | } |
109 | |
110 | // Extract URL |
111 | $url = substr($body, $target_pos, $end-$target_pos); |
112 | |
113 | // Replace URL with HyperLinked Url, requires 1 char in link |
114 | if ($url != '' && $url != $target_token) |
115 | { |
116 | $url_str = "<a href=\"$url\" target=\"_blank\">$url</a>"; |
117 | $body = replaceBlock($body,$url_str,$target_pos,$end); |
118 | $target_pos += strlen($url_str); |
119 | } |
120 | else |
121 | { |
122 | // Not quite a valid link, skip ahead to next chance |
123 | $target_pos += strlen($target_token); |
124 | } |
125 | } |
126 | |
127 | // Move forward |
128 | $start = $target_pos; |
129 | $target_pos = strlen($body); |
130 | } |
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131 | } |
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132 | |
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133 | ?> |