[1] | 1 | <?php |
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| 2 | /** |
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| 3 | * Utilities.inc.php |
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| 4 | * Code by Strangecode :: www.strangecode.com :: This document contains copyrighted information |
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| 5 | */ |
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| 6 | |
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| 7 | |
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| 8 | /** |
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| 9 | * Print variable dump. |
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| 10 | * |
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| 11 | * @param mixed $var Variable to dump. |
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| 12 | * @param bool $display Hide the dump in HTML comments? |
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| 13 | * @param bool $var_dump Use var_dump instead of print_r. |
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| 14 | */ |
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| 15 | function dump($var, $display=false, $var_dump=false) |
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| 16 | { |
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| 17 | echo $display ? "\n<br /><pre>\n" : "\n\n\n<!--\n"; |
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| 18 | if ($var_dump) { |
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| 19 | var_dump($var); |
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| 20 | } else { |
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| 21 | print_r($var); |
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| 22 | } |
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| 23 | echo $display ? "\n</pre><br />\n" : "\n-->\n\n\n"; |
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| 24 | } |
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| 25 | |
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| 26 | /** |
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| 27 | * Return dump as variable. |
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| 28 | * |
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| 29 | * @param mixed $var Variable to dump. |
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| 30 | * |
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| 31 | * @return string Dump of var. |
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| 32 | */ |
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| 33 | function getDump($var) |
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| 34 | { |
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| 35 | ob_start(); |
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| 36 | print_r($var); |
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| 37 | $d = ob_get_contents(); |
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| 38 | ob_end_clean(); |
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| 39 | return $d; |
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| 40 | } |
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| 41 | |
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| 42 | /** |
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| 43 | * Return dump as cleaned text. Useful for dumping data into emails. |
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| 44 | * |
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| 45 | * @param mixed $var Variable to dump. |
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| 46 | * |
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| 47 | * @return string Dump of var. |
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| 48 | */ |
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| 49 | function fancyDump($var, $indent='') |
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| 50 | { |
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| 51 | $output = ''; |
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| 52 | if (is_array($var)) { |
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| 53 | foreach ($var as $k=>$v) { |
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| 54 | $k = ucfirst(strtolower(str_replace(array('_', ' '), ' ', $k))); |
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| 55 | if (is_array($v)) { |
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| 56 | $output .= sprintf("\n%s%s: %s\n", $indent, $k, fancyDump($v, $indent . $indent)); |
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| 57 | } else { |
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| 58 | $output .= sprintf("%s%s: %s\n", $indent, $k, $v); |
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| 59 | } |
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| 60 | } |
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| 61 | } else { |
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| 62 | $output .= sprintf("%s%s\n", $indent, $var); |
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| 63 | } |
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| 64 | return $output; |
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| 65 | } |
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| 66 | |
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| 67 | /** |
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| 68 | * Returns text with appropriate html translations. |
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| 69 | * |
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| 70 | * @param string $txt Text to clean. |
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| 71 | * @param bool $preserve_html If set to true, oTxt will not translage <, >, ", or ' |
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| 72 | * characters into HTML entities. This allows HTML to pass |
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| 73 | * through unmunged. |
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| 74 | * |
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| 75 | * @return string Cleaned text. |
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| 76 | */ |
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| 77 | function oTxt($txt, $preserve_html=false) |
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| 78 | { |
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| 79 | global $CFG; |
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| 80 | |
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| 81 | $search = array(); |
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| 82 | $replace = array(); |
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| 83 | |
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| 84 | // Make converted ampersand entities into normal ampersands (they will be done manually later) to retain HTML entities. |
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| 85 | $search['retain_ampersand'] = '/&/'; |
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| 86 | $replace['retain_ampersand'] = '&'; |
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| 87 | |
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| 88 | if ($preserve_html) { |
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| 89 | // Convert characters that must remain non-entities for displaying HTML. |
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| 90 | $search['retain_left_angle'] = '/</'; |
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| 91 | $replace['retain_left_angle'] = '<'; |
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| 92 | |
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| 93 | $search['retain_right_angle'] = '/>/'; |
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| 94 | $replace['retain_right_angle'] = '>'; |
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| 95 | |
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| 96 | $search['retain_single_quote'] = '/'/'; |
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| 97 | $replace['retain_single_quote'] = "'"; |
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| 98 | |
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| 99 | $search['retain_double_quote'] = '/"/'; |
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| 100 | $replace['retain_double_quote'] = '"'; |
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| 101 | } |
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| 102 | |
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| 103 | // & becomes & |
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| 104 | $search['ampersand'] = '/&((?![\w\d#]{1,10};))/'; |
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| 105 | $replace['ampersand'] = '&\\1'; |
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| 106 | |
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| 107 | return preg_replace($search, $replace, htmlentities($txt, ENT_QUOTES, $CFG->character_set)); |
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| 108 | } |
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| 109 | |
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| 110 | /** |
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| 111 | * Returns text with stylistic modifications. |
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| 112 | * |
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| 113 | * @param string $txt Text to clean. |
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| 114 | * |
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| 115 | * @return string Cleaned text. |
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| 116 | */ |
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| 117 | function fancyTxt($txt) |
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| 118 | { |
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| 119 | $search = array(); |
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| 120 | $replace = array(); |
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| 121 | |
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| 122 | // "double quoted text" becomes “double quoted text” |
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| 123 | $search['double_quotes'] = '/(^|[^\w=])(?:"|"|"|"|“)([^"]+?)(?:"|"|"|"|”)([^\w]|$)/'; // " is the same as " and " and " |
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| 124 | $replace['double_quotes'] = '\\1“\\2”\\3'; |
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| 125 | |
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| 126 | // text's apostrophes become text’s apostrophes |
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| 127 | $search['apostrophe'] = '/(\w)(?:\'|')(\w)/'; |
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| 128 | $replace['apostrophe'] = '\\1’\\2'; |
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| 129 | |
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| 130 | // "single quoted text" becomes ‘single quoted text’ |
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| 131 | $search['single_quotes'] = '/(^|[^\w=])(?:\'|'|‘)([^\']+?)(?:\'|'|’)([^\w]|$)/'; |
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| 132 | $replace['single_quotes'] = '\\1‘\\2’\\3'; |
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| 133 | |
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| 134 | // em--dashes become em—dashes |
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| 135 | $search['em_dash'] = '/(\s*[^!<-])--([^>-]\s*)/'; |
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| 136 | $replace['em_dash'] = '\\1—\\2'; |
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| 137 | |
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| 138 | // & becomes & |
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| 139 | $search['ampersand'] = '/&((?![\w\d#]{1,10};))/'; |
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| 140 | $replace['ampersand'] = '&\\1'; |
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| 141 | |
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| 142 | return preg_replace($search, $replace, $txt); |
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| 143 | } |
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| 144 | |
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[77] | 145 | /** |
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| 146 | * Turns "a really long string" into "a rea...string" |
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| 147 | * |
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| 148 | * @access public |
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| 149 | * @param string $str Input string |
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| 150 | * @param int $len Maximum string length. |
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| 151 | * @param string $where Where to cut the string. One of: 'start', 'middle', or 'end'. |
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| 152 | * @return string Truncated output string |
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| 153 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 154 | * @since 29 Mar 2006 13:48:49 |
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| 155 | */ |
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| 156 | function truncate($str, $len, $where='middle') |
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| 157 | { |
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| 158 | $part1 = floor(($len - 3) / 2); |
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| 159 | $part2 = ceil(($len - 3) / 2); |
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| 160 | switch ($where) { |
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| 161 | case 'start' : |
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| 162 | return preg_replace(array(sprintf('/^.{4,}(.{%s})$/', $part1 + $part2), '/\s*\.{3,}\s*/'), array('...$1', '...'), $str); |
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| 163 | break; |
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| 164 | default : |
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| 165 | case 'middle' : |
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| 166 | return preg_replace(array(sprintf('/^(.{%s}).{4,}(.{%s})$/', $part1, $part2), '/\s*\.{3,}\s*/'), array('$1...$2', '...'), $str); |
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| 167 | break; |
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| 168 | case 'end' : |
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| 169 | return preg_replace(array(sprintf('/^(.{%s}).{4,}$/', $part1 + $part2), '/\s*\.{3,}\s*/'), array('$1...', '...'), $str); |
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| 170 | break; |
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| 171 | } |
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| 172 | } |
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[1] | 173 | |
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| 174 | /** |
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[265] | 175 | * Generates a hexadecimal html color based on provided word. |
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[1] | 176 | * |
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| 177 | * @access public |
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| 178 | * |
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| 179 | * @param string $text A string for which to convert to color. |
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| 180 | * |
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| 181 | * @return string A hexadecimal html color. |
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| 182 | */ |
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| 183 | function getTextColor($text, $method=1) |
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| 184 | { |
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[265] | 185 | $hash = md5($text); |
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| 186 | $rgb = array( |
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| 187 | substr($hash, 0, 1), |
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| 188 | substr($hash, 1, 1), |
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| 189 | substr($hash, 2, 1), |
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| 190 | substr($hash, 3, 1), |
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| 191 | substr($hash, 4, 1), |
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| 192 | substr($hash, 5, 1), |
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| 193 | ); |
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[1] | 194 | |
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| 195 | switch ($method) { |
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[265] | 196 | case 1 : |
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| 197 | default : |
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| 198 | // Reduce all hex values slighly to avoid all white. |
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| 199 | array_walk($rgb, create_function('&$v', '$v = dechex(round(hexdec($v) * 0.87));')); |
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| 200 | break; |
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[1] | 201 | case 2 : |
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[265] | 202 | foreach ($rgb as $i => $v) { |
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| 203 | if (hexdec($v) > hexdec('c')) { |
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| 204 | $rgb[$i] = dechex(hexdec('f') - hexdec($v)); |
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| 205 | } |
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[1] | 206 | } |
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| 207 | break; |
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| 208 | } |
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| 209 | |
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[265] | 210 | return join('', $rgb); |
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[1] | 211 | } |
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| 212 | |
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| 213 | /** |
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| 214 | * Encodes a string into unicode values 128-255. |
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| 215 | * Useful for hiding an email address from spambots. |
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| 216 | * |
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| 217 | * @access public |
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| 218 | * |
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| 219 | * @param string $text A line of text to encode. |
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| 220 | * |
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| 221 | * @return string Encoded text. |
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| 222 | */ |
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| 223 | function encodeAscii($text) |
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| 224 | { |
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| 225 | $ouput = ''; |
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| 226 | $num = strlen($text); |
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| 227 | for ($i=0; $i<$num; $i++) { |
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| 228 | $output .= sprintf('&#%03s', ord($text{$i})); |
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| 229 | } |
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| 230 | return $output; |
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| 231 | } |
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| 232 | |
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| 233 | /** |
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[30] | 234 | * Encodes an email into a user (at) domain (dot) com format. |
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| 235 | * |
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| 236 | * @access public |
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| 237 | * @param string $email An email to encode. |
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| 238 | * @param string $at Replaces the @. |
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| 239 | * @param string $dot Replaces the .. |
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| 240 | * @return string Encoded email. |
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| 241 | */ |
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[140] | 242 | function encodeEmail($email, $at=' at ', $dot=' dot ') |
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[30] | 243 | { |
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| 244 | $search = array('/@/', '/\./'); |
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| 245 | $replace = array($at, $dot); |
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| 246 | return preg_replace($search, $replace, $email); |
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| 247 | } |
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| 248 | |
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| 249 | /** |
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[1] | 250 | * Return a human readable filesize. |
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| 251 | * |
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| 252 | * @param int $size Size |
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| 253 | * @param int $unit The maximum unit |
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| 254 | * @param int $format The return string format |
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| 255 | * @author Aidan Lister <aidan@php.net> |
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| 256 | * @version 1.1.0 |
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| 257 | */ |
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| 258 | function humanFileSize($size, $unit=null, $format='%01.2f %s') |
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| 259 | { |
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| 260 | // Units |
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| 261 | $units = array('B', 'KB', 'MB', 'GB', 'TB'); |
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| 262 | $ii = count($units) - 1; |
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| 263 | |
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| 264 | // Max unit |
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| 265 | $unit = array_search((string) $unit, $units); |
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| 266 | if ($unit === null || $unit === false) { |
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| 267 | $unit = $ii; |
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| 268 | } |
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| 269 | |
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| 270 | // Loop |
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| 271 | $i = 0; |
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| 272 | while ($unit != $i && $size >= 1024 && $i < $ii) { |
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| 273 | $size /= 1024; |
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| 274 | $i++; |
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| 275 | } |
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| 276 | |
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| 277 | return sprintf($format, $size, $units[$i]); |
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| 278 | } |
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| 279 | |
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| 280 | /** |
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| 281 | * If $var is net set or null, set it to $default. Otherwise leave it alone. |
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| 282 | * Returns the final value of $var. Use to find a default value of one is not avilable. |
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| 283 | * |
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| 284 | * @param mixed $var The variable that is being set. |
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| 285 | * @param mixed $default What to set it to if $val is not currently set. |
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| 286 | * @return mixed The resulting value of $var. |
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| 287 | */ |
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| 288 | function setDefault(&$var, $default='') |
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| 289 | { |
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| 290 | if (!isset($var)) { |
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| 291 | $var = $default; |
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| 292 | } |
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| 293 | return $var; |
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| 294 | } |
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| 295 | |
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| 296 | /** |
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| 297 | * Like preg_quote() except for arrays, it takes an array of strings and puts |
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| 298 | * a backslash in front of every character that is part of the regular |
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| 299 | * expression syntax. |
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| 300 | * |
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| 301 | * @param array $array input array |
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| 302 | * @param array $delim optional character that will also be excaped. |
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| 303 | * |
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| 304 | * @return array an array with the same values as $array1 but shuffled |
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| 305 | */ |
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| 306 | function pregQuoteArray($array, $delim='/') |
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| 307 | { |
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| 308 | if (!empty($array)) { |
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| 309 | if (is_array($array)) { |
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| 310 | foreach ($array as $key=>$val) { |
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| 311 | $quoted_array[$key] = preg_quote($val, $delim); |
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| 312 | } |
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| 313 | return $quoted_array; |
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| 314 | } else { |
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| 315 | return preg_quote($array, $delim); |
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| 316 | } |
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| 317 | } |
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| 318 | } |
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| 319 | |
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| 320 | /** |
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| 321 | * Converts a PHP Array into encoded URL arguments and return them as an array. |
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| 322 | * |
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| 323 | * @param mixed $data An array to transverse recursivly, or a string |
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| 324 | * to use directly to create url arguments. |
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| 325 | * @param string $prefix The name of the first dimension of the array. |
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| 326 | * If not specified, the first keys of the array will be used. |
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| 327 | * |
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| 328 | * @return array URL with array elements as URL key=value arguments. |
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| 329 | */ |
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| 330 | function urlEncodeArray($data, $prefix='', $_return=true) { |
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| 331 | |
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| 332 | // Data is stored in static variable. |
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| 333 | static $args; |
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| 334 | |
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| 335 | if (is_array($data)) { |
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| 336 | foreach ($data as $key => $val) { |
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| 337 | // If the prefix is empty, use the $key as the name of the first dimention of the "array". |
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| 338 | // ...otherwise, append the key as a new dimention of the "array". |
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| 339 | $new_prefix = ('' == $prefix) ? urlencode($key) : $prefix . '[' . urlencode($key) . ']'; |
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| 340 | // Enter recursion. |
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| 341 | urlEncodeArray($val, $new_prefix, false); |
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| 342 | } |
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| 343 | } else { |
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| 344 | // We've come to the last dimention of the array, save the "array" and it's value. |
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| 345 | $args[$prefix] = urlencode($data); |
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| 346 | } |
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| 347 | |
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| 348 | if ($_return) { |
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| 349 | // This is not a recursive execution. All recursion is complete. |
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| 350 | // Reset static var and return the result. |
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| 351 | $ret = $args; |
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| 352 | $args = array(); |
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| 353 | return is_array($ret) ? $ret : array(); |
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| 354 | } |
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| 355 | } |
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| 356 | |
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| 357 | /** |
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| 358 | * Converts a PHP Array into encoded URL arguments and return them in a string. |
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| 359 | * |
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| 360 | * @param mixed $data An array to transverse recursivly, or a string |
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| 361 | * to use directly to create url arguments. |
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| 362 | * @param string $prefix The name of the first dimention of the array. |
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| 363 | * If not specified, the first keys of the array will be used. |
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| 364 | * |
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| 365 | * @return string url A string ready to append to a url. |
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| 366 | */ |
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| 367 | function urlEncodeArrayToString($data, $prefix='') { |
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| 368 | |
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| 369 | $array_args = urlEncodeArray($data, $prefix); |
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| 370 | $url_args = ''; |
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| 371 | $delim = ''; |
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| 372 | foreach ($array_args as $key=>$val) { |
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| 373 | $url_args .= $delim . $key . '=' . $val; |
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| 374 | $delim = ini_get('arg_separator.output'); |
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| 375 | } |
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| 376 | return $url_args; |
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| 377 | } |
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| 378 | |
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| 379 | /** |
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| 380 | * An alternative to "shuffle()" that actually works. |
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| 381 | * |
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| 382 | * @param array $array1 input array |
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| 383 | * @param array $array2 argument used internally through recursion |
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| 384 | * |
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| 385 | * @return array an array with the same values as $array1 but shuffled |
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| 386 | */ |
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| 387 | function arrayRand(&$array1, $array2 = array()) |
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| 388 | { |
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| 389 | if (!sizeof($array1)) { |
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| 390 | return array(); |
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| 391 | } |
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| 392 | |
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| 393 | srand((double) microtime() * 10000000); |
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| 394 | $rand = array_rand($array1); |
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| 395 | |
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| 396 | $array2[] = $array1[$rand]; |
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| 397 | unset ($array1[$rand]); |
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| 398 | |
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| 399 | return $array2 + arrayRand($array1, $array2); |
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| 400 | } |
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| 401 | |
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| 402 | /** |
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| 403 | * Fills an arrray with the result from a multiple ereg search. |
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| 404 | * Curtesy of Bruno - rbronosky@mac.com - 10-May-2001 |
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| 405 | * Blame him for the funky do...while loop. |
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| 406 | * |
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| 407 | * @param mixed $pattern regular expression needle |
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| 408 | * @param mixed $string haystack |
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| 409 | * |
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| 410 | * @return array populated with each found result |
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| 411 | */ |
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| 412 | function eregAll($pattern, $string) |
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| 413 | { |
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| 414 | do { |
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| 415 | if (!ereg($pattern, $string, $temp)) { |
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| 416 | continue; |
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| 417 | } |
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| 418 | $string = str_replace($temp[0], '', $string); |
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| 419 | $results[] = $temp; |
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| 420 | } while (ereg($pattern, $string, $temp)); |
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| 421 | return $results; |
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| 422 | } |
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| 423 | |
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| 424 | /** |
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| 425 | * Prints the word "checked" if a variable is set, and optionally matches |
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| 426 | * the desired value, otherwise prints nothing, |
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| 427 | * used for printing the word "checked" in a checkbox form input. |
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| 428 | * |
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| 429 | * @param mixed $var the variable to compare |
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| 430 | * @param mixed $value optional, what to compare with if a specific value is required. |
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| 431 | */ |
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| 432 | function frmChecked($var, $value=null) |
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| 433 | { |
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| 434 | if (func_num_args() == 1 && $var) { |
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| 435 | // 'Checked' if var is true. |
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| 436 | echo ' checked="checked" '; |
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| 437 | } else if (func_num_args() == 2 && $var == $value) { |
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| 438 | // 'Checked' if var and value match. |
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| 439 | echo ' checked="checked" '; |
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| 440 | } else if (func_num_args() == 2 && is_array($var)) { |
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| 441 | // 'Checked' if the value is in the key or the value of an array. |
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| 442 | if (isset($var[$value])) { |
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| 443 | echo ' checked="checked" '; |
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| 444 | } else if (in_array($value, $var)) { |
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| 445 | echo ' checked="checked" '; |
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| 446 | } |
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| 447 | } |
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| 448 | } |
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| 449 | |
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| 450 | /** |
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| 451 | * prints the word "selected" if a variable is set, and optionally matches |
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| 452 | * the desired value, otherwise prints nothing, |
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| 453 | * otherwise prints nothing, used for printing the word "checked" in a |
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| 454 | * select form input |
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| 455 | * |
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| 456 | * @param mixed $var the variable to compare |
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| 457 | * @param mixed $value optional, what to compare with if a specific value is required. |
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| 458 | */ |
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| 459 | function frmSelected($var, $value=null) |
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| 460 | { |
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| 461 | if (func_num_args() == 1 && $var) { |
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| 462 | // 'selected' if var is true. |
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| 463 | echo ' selected="selected" '; |
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| 464 | } else if (func_num_args() == 2 && $var == $value) { |
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| 465 | // 'selected' if var and value match. |
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| 466 | echo ' selected="selected" '; |
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| 467 | } else if (func_num_args() == 2 && is_array($var)) { |
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| 468 | // 'selected' if the value is in the key or the value of an array. |
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| 469 | if (isset($var[$value])) { |
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| 470 | echo ' selected="selected" '; |
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| 471 | } else if (in_array($value, $var)) { |
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| 472 | echo ' selected="selected" '; |
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| 473 | } |
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| 474 | } |
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| 475 | } |
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| 476 | |
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| 477 | /** |
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| 478 | * Adds slashes to values of an array and converts the array to a |
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| 479 | * comma delimited list. If value provided is not an array or is empty |
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| 480 | * return nothing. This is useful for putting values coming in from |
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| 481 | * posted checkboxes into a SET column of a database. |
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| 482 | * |
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| 483 | * @param array $array Array to convert. |
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| 484 | * @return string Comma list of array values. |
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| 485 | */ |
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| 486 | function dbArrayToList($array) |
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| 487 | { |
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| 488 | if (is_array($array) && !empty($array)) { |
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[82] | 489 | return join(',', array_map('mysql_real_escape_string', array_keys($array))); |
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[1] | 490 | } |
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| 491 | } |
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| 492 | |
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| 493 | /** |
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| 494 | * Converts a human string date into a SQL-safe date. |
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| 495 | * Dates nearing infinity use the date 2038-01-01 so conversion to unix time |
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| 496 | * format remain within valid range. |
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| 497 | * |
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| 498 | * @param array $date String date to convert. |
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| 499 | * @param array $format Date format to pass to date(). |
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| 500 | * Default produces MySQL datetime: 0000-00-00 00:00:00. |
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| 501 | * |
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| 502 | * @return string SQL-safe date. |
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| 503 | */ |
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| 504 | function strToSQLDate($date, $format='Y-m-d H:i:s') |
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| 505 | { |
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| 506 | // Translate the human string date into SQL-safe date format. |
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| 507 | if (empty($date) || '0000-00-00' == $date || strtotime($date) === -1) { |
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| 508 | $sql_date = '0000-00-00'; |
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| 509 | } else { |
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| 510 | $sql_date = date($format, strtotime($date)); |
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| 511 | } |
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| 512 | |
---|
| 513 | return $sql_date; |
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| 514 | } |
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| 515 | |
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| 516 | /** |
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| 517 | * If magic_quotes_gpc is in use, run stripslashes() on $var. If $var is an |
---|
| 518 | * array, stripslashes is run on each value, recursivly, and the stripped |
---|
| 519 | * array is returned |
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| 520 | * |
---|
| 521 | * @param mixed $var The string or array to un-quote, if necessary. |
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| 522 | * @return mixed $var, minus any magic quotes. |
---|
| 523 | */ |
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| 524 | function dispelMagicQuotes($var) |
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| 525 | { |
---|
| 526 | static $magic_quotes_gpc; |
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| 527 | |
---|
| 528 | if (!isset($magic_quotes_gpc)) { |
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| 529 | $magic_quotes_gpc = get_magic_quotes_gpc(); |
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| 530 | } |
---|
| 531 | |
---|
| 532 | if ($magic_quotes_gpc) { |
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| 533 | if (!is_array($var)) { |
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| 534 | $var = stripslashes($var); |
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| 535 | } else { |
---|
| 536 | foreach ($var as $key=>$val) { |
---|
| 537 | if (is_array($val)) { |
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| 538 | $var[$key] = dispelMagicQuotes($val); |
---|
| 539 | } else { |
---|
| 540 | $var[$key] = stripslashes($val); |
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| 541 | } |
---|
| 542 | } |
---|
| 543 | } |
---|
| 544 | } |
---|
| 545 | return $var; |
---|
| 546 | } |
---|
| 547 | |
---|
| 548 | /** |
---|
| 549 | * Get a form variable from GET or POST data, stripped of magic |
---|
| 550 | * quotes if necessary. |
---|
| 551 | * |
---|
| 552 | * @param string $var (optional) The name of the form variable to look for. |
---|
| 553 | * @param string $default (optional) The value to return if the |
---|
| 554 | * variable is not there. |
---|
| 555 | * |
---|
| 556 | * @return mixed A cleaned GET or POST if no $var specified. |
---|
| 557 | * @return string A cleaned form $var if found, or $default. |
---|
| 558 | */ |
---|
| 559 | function getFormData($var=null, $default=null) |
---|
| 560 | { |
---|
| 561 | if ('POST' == $_SERVER['REQUEST_METHOD'] && is_null($var)) { |
---|
| 562 | return dispelMagicQuotes($_POST); |
---|
| 563 | } else if ('GET' == $_SERVER['REQUEST_METHOD'] && is_null($var)) { |
---|
| 564 | return dispelMagicQuotes($_GET); |
---|
| 565 | } |
---|
| 566 | if (isset($_POST[$var])) { |
---|
| 567 | return dispelMagicQuotes($_POST[$var]); |
---|
| 568 | } else if (isset($_GET[$var])) { |
---|
| 569 | return dispelMagicQuotes($_GET[$var]); |
---|
| 570 | } else { |
---|
| 571 | return $default; |
---|
| 572 | } |
---|
| 573 | } |
---|
| 574 | function getPost($var=null, $default=null) |
---|
| 575 | { |
---|
| 576 | if (is_null($var)) { |
---|
| 577 | return dispelMagicQuotes($_POST); |
---|
| 578 | } |
---|
| 579 | if (isset($_POST[$var])) { |
---|
| 580 | return dispelMagicQuotes($_POST[$var]); |
---|
| 581 | } else { |
---|
| 582 | return $default; |
---|
| 583 | } |
---|
| 584 | } |
---|
| 585 | function getGet($var=null, $default=null) |
---|
| 586 | { |
---|
| 587 | if (is_null($var)) { |
---|
| 588 | return dispelMagicQuotes($_GET); |
---|
| 589 | } |
---|
| 590 | if (isset($_GET[$var])) { |
---|
| 591 | return dispelMagicQuotes($_GET[$var]); |
---|
| 592 | } else { |
---|
| 593 | return $default; |
---|
| 594 | } |
---|
| 595 | } |
---|
| 596 | |
---|
| 597 | /** |
---|
| 598 | * Signs a value using md5 and a simple text key. In order for this |
---|
| 599 | * function to be useful (i.e. secure) the key must be kept secret, which |
---|
| 600 | * means keeping it as safe as database credentials. Putting it into an |
---|
| 601 | * environment variable set in httpd.conf is a good place. |
---|
| 602 | * |
---|
| 603 | * @access public |
---|
| 604 | * |
---|
| 605 | * @param string $val The string to sign. |
---|
| 606 | * @param string $key (Optional) A text key to use for computing the signature. |
---|
| 607 | * |
---|
| 608 | * @return string The original value with a signature appended. |
---|
| 609 | */ |
---|
| 610 | function addSignature($val, $key=null) |
---|
| 611 | { |
---|
| 612 | global $CFG; |
---|
| 613 | |
---|
| 614 | if ('' == $val) { |
---|
| 615 | logMsg(sprintf('Adding signature to empty string.', null), LOG_NOTICE, __FILE__, __LINE__); |
---|
| 616 | } |
---|
| 617 | |
---|
| 618 | if (!isset($key)) { |
---|
| 619 | $key = $CFG->signing_key; |
---|
| 620 | } |
---|
| 621 | |
---|
| 622 | return $val . '-' . substr(md5($val . $key), 0, 18); |
---|
| 623 | } |
---|
| 624 | |
---|
| 625 | /** |
---|
| 626 | * Strips off the signature appended by addSignature(). |
---|
| 627 | * |
---|
| 628 | * @access public |
---|
| 629 | * |
---|
| 630 | * @param string $signed_val The string to sign. |
---|
| 631 | * |
---|
| 632 | * @return string The original value with a signature removed. |
---|
| 633 | */ |
---|
| 634 | function removeSignature($signed_val) |
---|
| 635 | { |
---|
| 636 | return substr($signed_val, 0, strrpos($signed_val, '-')); |
---|
| 637 | } |
---|
| 638 | |
---|
| 639 | |
---|
| 640 | /** |
---|
| 641 | * Verifies a signature appened to a value by addSignature(). |
---|
| 642 | * |
---|
| 643 | * @access public |
---|
| 644 | * |
---|
| 645 | * @param string $signed_val A value with appended signature. |
---|
| 646 | * @param string $key (Optional) A text key to use for computing the signature. |
---|
| 647 | * |
---|
| 648 | * @return bool True if the signature matches the var. |
---|
| 649 | */ |
---|
| 650 | function verifySignature($signed_val, $key=null) |
---|
| 651 | { |
---|
| 652 | // Strip the value from the signed value. |
---|
| 653 | $val = substr($signed_val, 0, strrpos($signed_val, '-')); |
---|
| 654 | // If the signed value matches the original signed value we consider the value safe. |
---|
| 655 | if ($signed_val == addSignature($val, $key)) { |
---|
| 656 | // Signature verified. |
---|
| 657 | return true; |
---|
| 658 | } else { |
---|
| 659 | return false; |
---|
| 660 | } |
---|
| 661 | } |
---|
| 662 | |
---|
| 663 | /** |
---|
| 664 | * Stub functions used when installation does not have |
---|
| 665 | * GNU gettext extension installed |
---|
| 666 | */ |
---|
| 667 | if (!extension_loaded('gettext')) { |
---|
| 668 | /** |
---|
| 669 | * Translates text |
---|
| 670 | * |
---|
| 671 | * @access public |
---|
| 672 | * @param string $text the text to be translated |
---|
| 673 | * @return string translated text |
---|
| 674 | */ |
---|
| 675 | function gettext($text) { |
---|
| 676 | return $text; |
---|
| 677 | } |
---|
| 678 | |
---|
| 679 | /** |
---|
| 680 | * Translates text |
---|
| 681 | * |
---|
| 682 | * @access public |
---|
| 683 | * @param string $text the text to be translated |
---|
| 684 | * @return string translated text |
---|
| 685 | */ |
---|
| 686 | function _($text) { |
---|
| 687 | return $text; |
---|
| 688 | } |
---|
| 689 | |
---|
| 690 | /** |
---|
| 691 | * Translates text by domain |
---|
| 692 | * |
---|
| 693 | * @access public |
---|
| 694 | * @param string $domain the language to translate the text into |
---|
| 695 | * @param string $text the text to be translated |
---|
| 696 | * @return string translated text |
---|
| 697 | */ |
---|
| 698 | function dgettext($domain, $text) { |
---|
| 699 | return $text; |
---|
| 700 | } |
---|
| 701 | |
---|
| 702 | /** |
---|
| 703 | * Translates text by domain and category |
---|
| 704 | * |
---|
| 705 | * @access public |
---|
| 706 | * @param string $domain the language to translate the text into |
---|
| 707 | * @param string $text the text to be translated |
---|
| 708 | * @param string $category the language dialect to use |
---|
| 709 | * @return string translated text |
---|
| 710 | */ |
---|
| 711 | function dcgettext($domain, $text, $category) { |
---|
| 712 | return $text; |
---|
| 713 | } |
---|
| 714 | |
---|
| 715 | /** |
---|
| 716 | * Binds the text domain |
---|
| 717 | * |
---|
| 718 | * @access public |
---|
| 719 | * @param string $domain the language to translate the text into |
---|
| 720 | * @param string |
---|
| 721 | * @return string translated text |
---|
| 722 | */ |
---|
| 723 | function bindtextdomain($domain, $directory) { |
---|
| 724 | return $domain; |
---|
| 725 | } |
---|
| 726 | |
---|
| 727 | /** |
---|
| 728 | * Sets the text domain |
---|
| 729 | * |
---|
| 730 | * @access public |
---|
| 731 | * @param string $domain the language to translate the text into |
---|
| 732 | * @return string translated text |
---|
| 733 | */ |
---|
| 734 | function textdomain($domain) { |
---|
| 735 | return $domain; |
---|
| 736 | } |
---|
| 737 | } |
---|
| 738 | |
---|
| 739 | /** |
---|
| 740 | * Sends empty output to the browser and flushes the php buffer so the client |
---|
| 741 | * will see data before the page is finished processing. |
---|
| 742 | */ |
---|
| 743 | function flushBuffer() { |
---|
| 744 | echo str_repeat(' ', 205); |
---|
| 745 | flush(); |
---|
| 746 | } |
---|
| 747 | |
---|
| 748 | /** |
---|
| 749 | * Adds email address to mailman mailing list. Requires /etc/sudoers entry for apache to sudo execute add_members. |
---|
| 750 | * Don't forget to allow php_admin_value open_basedir access to "/var/mailman/bin". |
---|
| 751 | * |
---|
| 752 | * @access public |
---|
| 753 | * |
---|
| 754 | * @param string $email Email address to add. |
---|
| 755 | * @param string $list Name of list to add to. |
---|
| 756 | * @param bool $send_welcome_message True to send welcome message to subscriber. |
---|
| 757 | * |
---|
| 758 | * @return bool True on success, false on failure. |
---|
| 759 | */ |
---|
| 760 | function mailmanAddMember($email, $list, $send_welcome_message=false) |
---|
| 761 | { |
---|
[206] | 762 | $add_members = '/usr/lib/mailman/bin/add_members'; |
---|
| 763 | if (true || is_executable($add_members) && is_readable($add_members)) { |
---|
[1] | 764 | $welcome_msg = $send_welcome_message ? 'y' : 'n'; |
---|
| 765 | exec(sprintf('/bin/echo %s | /usr/bin/sudo %s -r - --welcome-msg=%s --admin-notify=n %s', escapeshellarg($email), escapeshellarg($add_members), $welcome_msg, escapeshellarg($list)), $stdout, $return_code); |
---|
[206] | 766 | $stdout = is_array($stdout) ? getDump($stdout) : $stdout; |
---|
[1] | 767 | if (0 == $return_code) { |
---|
| 768 | logMsg(sprintf('Mailman add member success for list: %s, user: %s', $list, $email, $stdout), LOG_INFO, __FILE__, __LINE__); |
---|
| 769 | return true; |
---|
| 770 | } else { |
---|
| 771 | logMsg(sprintf('Mailman add member failed for list: %s, user: %s, with message: %s', $list, $email, $stdout), LOG_WARNING, __FILE__, __LINE__); |
---|
| 772 | return false; |
---|
| 773 | } |
---|
| 774 | } else { |
---|
| 775 | logMsg(sprintf('Mailman add member program not executable: %s', $add_members), LOG_ALERT, __FILE__, __LINE__); |
---|
| 776 | return false; |
---|
| 777 | } |
---|
| 778 | } |
---|
| 779 | |
---|
| 780 | /** |
---|
| 781 | * Removes email address from mailman mailing list. Requires /etc/sudoers entry for apache to sudo execute add_members. |
---|
| 782 | * Don't forget to allow php_admin_value open_basedir access to "/var/mailman/bin". |
---|
| 783 | * |
---|
| 784 | * @access public |
---|
| 785 | * |
---|
| 786 | * @param string $email Email address to add. |
---|
| 787 | * @param string $list Name of list to add to. |
---|
| 788 | * @param bool $send_user_ack True to send goodbye message to subscriber. |
---|
| 789 | * |
---|
| 790 | * @return bool True on success, false on failure. |
---|
| 791 | */ |
---|
| 792 | function mailmanRemoveMember($email, $list, $send_user_ack=false) |
---|
| 793 | { |
---|
[206] | 794 | $remove_members = '/usr/lib/mailman/bin/remove_members'; |
---|
| 795 | if (true || is_executable($remove_members) && is_readable($remove_members)) { |
---|
[1] | 796 | $userack = $send_user_ack ? '' : '--nouserack'; |
---|
| 797 | exec(sprintf('/usr/bin/sudo %s %s --noadminack %s %s', escapeshellarg($remove_members), $userack, escapeshellarg($list), escapeshellarg($email)), $stdout, $return_code); |
---|
[206] | 798 | $stdout = is_array($stdout) ? getDump($stdout) : $stdout; |
---|
[1] | 799 | if (0 == $return_code) { |
---|
| 800 | logMsg(sprintf('Mailman remove member success for list: %s, user: %s', $list, $email, $stdout), LOG_INFO, __FILE__, __LINE__); |
---|
| 801 | return true; |
---|
| 802 | } else { |
---|
| 803 | logMsg(sprintf('Mailman remove member failed for list: %s, user: %s, with message: %s', $list, $email, $stdout), LOG_WARNING, __FILE__, __LINE__); |
---|
| 804 | return false; |
---|
| 805 | } |
---|
| 806 | } else { |
---|
| 807 | logMsg(sprintf('Mailman remove member program not executable: %s', $remove_members), LOG_ALERT, __FILE__, __LINE__); |
---|
| 808 | return false; |
---|
| 809 | } |
---|
| 810 | } |
---|
| 811 | |
---|
| 812 | |
---|
| 813 | |
---|
[206] | 814 | ?> |
---|