[1] | 1 | <?php |
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| 2 | /** |
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[362] | 3 | * The Strangecode Codebase - a general application development framework for PHP |
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| 4 | * For details visit the project site: <http://trac.strangecode.com/codebase/> |
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[396] | 5 | * Copyright 2001-2012 Strangecode, LLC |
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[454] | 6 | * |
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[362] | 7 | * This file is part of The Strangecode Codebase. |
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| 8 | * |
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| 9 | * The Strangecode Codebase is free software: you can redistribute it and/or |
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| 10 | * modify it under the terms of the GNU General Public License as published by the |
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| 11 | * Free Software Foundation, either version 3 of the License, or (at your option) |
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| 12 | * any later version. |
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[454] | 13 | * |
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[362] | 14 | * The Strangecode Codebase is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| 16 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
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| 17 | * details. |
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[454] | 18 | * |
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[362] | 19 | * You should have received a copy of the GNU General Public License along with |
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| 20 | * The Strangecode Codebase. If not, see <http://www.gnu.org/licenses/>. |
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| 21 | */ |
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| 22 | |
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| 23 | /** |
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[1] | 24 | * Utilities.inc.php |
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| 25 | */ |
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| 26 | |
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| 27 | |
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| 28 | /** |
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| 29 | * Print variable dump. |
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| 30 | * |
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[479] | 31 | * @param mixed $var The variable to dump. |
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| 32 | * @param bool $display Print the dump in <pre> tags or hide it in html comments (non-CLI only). |
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[613] | 33 | * @param bool $dump_method Dump method. See SC_DUMP_* constants. |
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[479] | 34 | * @param string $file Value of __FILE__. |
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| 35 | * @param string $line Value of __LINE__ |
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[1] | 36 | */ |
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[613] | 37 | define('SC_DUMP_PRINT_R', 0); |
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| 38 | define('SC_DUMP_VAR_DUMP', 1); |
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| 39 | define('SC_DUMP_VAR_EXPORT', 2); |
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[743] | 40 | define('SC_DUMP_JSON', 3); |
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[613] | 41 | function dump($var, $display=false, $dump_method=SC_DUMP_PRINT_R, $file='', $line='') |
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[1] | 42 | { |
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[548] | 43 | $app =& App::getInstance(); |
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| 44 | |
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[665] | 45 | if ($app->isCLI()) { |
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[750] | 46 | echo ('' != $file . $line) ? "DUMP FROM: $file $line\n" : "DUMP:\n"; |
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[454] | 47 | } else { |
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[477] | 48 | echo $display ? "\n<br />DUMP <strong>$file $line</strong><br /><pre>\n" : "\n<!-- DUMP $file $line\n"; |
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[380] | 49 | } |
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[613] | 50 | |
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| 51 | switch ($dump_method) { |
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| 52 | case SC_DUMP_PRINT_R: |
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| 53 | default: |
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[479] | 54 | // Print human-readable descriptions of invisible types. |
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| 55 | if (null === $var) { |
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| 56 | echo '(null)'; |
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| 57 | } else if (true === $var) { |
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| 58 | echo '(bool: true)'; |
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| 59 | } else if (false === $var) { |
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| 60 | echo '(bool: false)'; |
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| 61 | } else if (is_scalar($var) && '' === $var) { |
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| 62 | echo '(empty string)'; |
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| 63 | } else if (is_scalar($var) && preg_match('/^\s+$/', $var)) { |
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| 64 | echo '(only white space)'; |
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| 65 | } else { |
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| 66 | print_r($var); |
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| 67 | } |
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[613] | 68 | break; |
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| 69 | |
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| 70 | case SC_DUMP_VAR_DUMP: |
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| 71 | var_dump($var); |
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| 72 | break; |
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| 73 | |
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| 74 | case SC_DUMP_VAR_EXPORT: |
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| 75 | var_export($var); |
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| 76 | break; |
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[743] | 77 | |
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| 78 | case SC_DUMP_JSON: |
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[744] | 79 | echo json_encode($var, JSON_PRETTY_PRINT); |
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[743] | 80 | break; |
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[1] | 81 | } |
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[613] | 82 | |
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[665] | 83 | if ($app->isCLI()) { |
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[380] | 84 | echo "\n"; |
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[454] | 85 | } else { |
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[477] | 86 | echo $display ? "\n</pre><br />\n" : "\n-->\n"; |
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[380] | 87 | } |
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[1] | 88 | } |
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| 89 | |
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[464] | 90 | /* |
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| 91 | * Log a PHP variable to javascript console. Relies on getDump(), below. |
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| 92 | * |
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| 93 | * @access public |
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| 94 | * @param mixed $var The variable to dump. |
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| 95 | * @param string $prefix A short note to print before the output to make identifying output easier. |
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| 96 | * @param string $file The value of __FILE__. |
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| 97 | * @param string $line The value of __LINE__. |
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| 98 | * @return null |
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| 99 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 100 | */ |
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| 101 | function jsDump($var, $prefix='jsDump', $file='-', $line='-') |
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| 102 | { |
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| 103 | if (!empty($var)) { |
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| 104 | ?> |
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[518] | 105 | <script type="text/javascript"> |
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[464] | 106 | /* <![CDATA[ */ |
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[518] | 107 | console.log('<?php printf('%s: %s (on line %s of %s)', $prefix, str_replace("'", "\\'", getDump($var, true)), $line, $file); ?>'); |
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[464] | 108 | /* ]]> */ |
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| 109 | </script> |
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| 110 | <?php |
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| 111 | } |
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| 112 | } |
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| 113 | |
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| 114 | /* |
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| 115 | * Return a string version of any variable, optionally serialized on one line. |
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| 116 | * |
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| 117 | * @access public |
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| 118 | * @param mixed $var The variable to dump. |
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| 119 | * @param bool $serialize If true, remove line-endings. Useful for logging variables. |
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| 120 | * @return string The dumped variable. |
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| 121 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 122 | */ |
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[765] | 123 | function getDump($var, $serialize=false, $dump_method=SC_DUMP_PRINT_R) |
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[1] | 124 | { |
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[724] | 125 | $app =& App::getInstance(); |
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| 126 | |
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[765] | 127 | switch ($dump_method) { |
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| 128 | case SC_DUMP_PRINT_R: |
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| 129 | default: |
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| 130 | // Print human-readable descriptions of invisible types. |
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| 131 | if (null === $var) { |
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| 132 | $d = '(null)'; |
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| 133 | } else if (true === $var) { |
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| 134 | $d = '(bool: true)'; |
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| 135 | } else if (false === $var) { |
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| 136 | $d = '(bool: false)'; |
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| 137 | } else if (is_scalar($var) && '' === $var) { |
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| 138 | $d = '(empty string)'; |
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| 139 | } else if (is_scalar($var) && preg_match('/^\s+$/', $var)) { |
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| 140 | $d = '(only white space)'; |
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| 141 | } else { |
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| 142 | ob_start(); |
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| 143 | print_r($var); |
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| 144 | $d = ob_get_contents(); |
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| 145 | ob_end_clean(); |
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| 146 | } |
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| 147 | break; |
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| 148 | |
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| 149 | case SC_DUMP_VAR_DUMP: |
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| 150 | ob_start(); |
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| 151 | print_r($var); |
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| 152 | var_dump($var); |
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| 153 | ob_end_clean(); |
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| 154 | break; |
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| 155 | |
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| 156 | case SC_DUMP_VAR_EXPORT: |
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| 157 | ob_start(); |
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| 158 | print_r($var); |
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| 159 | var_export($var); |
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| 160 | ob_end_clean(); |
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| 161 | break; |
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| 162 | |
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| 163 | case SC_DUMP_JSON: |
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| 164 | $d = json_encode($var, JSON_PRETTY_PRINT); |
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| 165 | break; |
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| 166 | } |
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[724] | 167 | return $serialize ? preg_replace('/\s+/m' . $app->getParam('preg_u'), ' ', $d) : $d; |
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[1] | 168 | } |
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| 169 | |
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[652] | 170 | /* |
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| 171 | * Return dump as cleaned text. Useful for dumping data into emails or output from CLI scripts. |
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| 172 | * To output tab-style lists set $indent to "\t" and $depth to 0; |
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| 173 | * To output markdown-style lists set $indent to '- ' and $depth to 1; |
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| 174 | * Also see yaml_emit() https://secure.php.net/manual/en/function.yaml-emit.php |
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| 175 | * |
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| 176 | * @param array $var Variable to dump. |
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| 177 | * @param string $indent A string to prepend indented lines. |
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| 178 | * @param string $depth Starting depth of this iteration of recursion (set to 0 to have no initial indentation). |
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| 179 | * @return string Pretty dump of $var. |
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| 180 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 181 | * @version 2.0 |
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| 182 | */ |
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| 183 | function fancyDump($var, $indent='- ', $depth=1) |
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[1] | 184 | { |
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[724] | 185 | $app =& App::getInstance(); |
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| 186 | |
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[652] | 187 | $indent_str = str_repeat($indent, $depth); |
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[1] | 188 | $output = ''; |
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| 189 | if (is_array($var)) { |
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| 190 | foreach ($var as $k=>$v) { |
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[247] | 191 | $k = ucfirst(mb_strtolower(str_replace(array('_', ' '), ' ', $k))); |
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[1] | 192 | if (is_array($v)) { |
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[652] | 193 | $output .= sprintf("\n%s%s:\n%s\n", $indent_str, $k, fancyDump($v, $indent, $depth+1)); |
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[1] | 194 | } else { |
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[652] | 195 | $output .= sprintf("%s%s: %s\n", $indent_str, $k, $v); |
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[1] | 196 | } |
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| 197 | } |
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| 198 | } else { |
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[652] | 199 | $output .= sprintf("%s%s\n", $indent_str, $var); |
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[1] | 200 | } |
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[724] | 201 | return preg_replace(['/^[ \t]+$/' . $app->getParam('preg_u'), '/\n\n+/' . $app->getParam('preg_u'), '/^(?:\S( ))?(?:\S( ))?(?:\S( ))?(?:\S( ))?(?:\S( ))?(?:\S( ))?(?:\S( ))?(?:\S( ))?(\S )/m' . $app->getParam('preg_u')], ['', "\n", '$1$1$2$2$3$3$4$4$5$5$6$6$7$7$8$8$9'], $output); |
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[1] | 202 | } |
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| 203 | |
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| 204 | /** |
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[605] | 205 | * @param string|mixed $value A string to UTF8-encode. |
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| 206 | * |
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| 207 | * @returns string|mixed The UTF8-encoded string, or the object passed in if |
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| 208 | * it wasn't a string. |
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| 209 | */ |
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| 210 | function conditionalUTF8Encode($value) |
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| 211 | { |
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| 212 | if (is_string($value) && mb_detect_encoding($value, 'UTF-8', true) != 'UTF-8') { |
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| 213 | return utf8_encode($value); |
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| 214 | } else { |
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| 215 | return $value; |
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| 216 | } |
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| 217 | } |
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| 218 | |
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| 219 | |
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| 220 | /** |
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[505] | 221 | * Returns text with appropriate html translations (a smart wrapper for htmlspecialchars()). |
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[1] | 222 | * |
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[257] | 223 | * @param string $text Text to clean. |
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[334] | 224 | * @param bool $preserve_html If set to true, oTxt will not translate <, >, ", or ' |
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[485] | 225 | * characters into HTML entities. This allows HTML to pass through undisturbed. |
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| 226 | * @return string HTML-safe text. |
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[1] | 227 | */ |
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[257] | 228 | function oTxt($text, $preserve_html=false) |
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[1] | 229 | { |
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[479] | 230 | $app =& App::getInstance(); |
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[136] | 231 | |
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[1] | 232 | $search = array(); |
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| 233 | $replace = array(); |
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| 234 | |
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| 235 | // Make converted ampersand entities into normal ampersands (they will be done manually later) to retain HTML entities. |
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[723] | 236 | $search['retain_ampersand'] = '/&/'; |
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[1] | 237 | $replace['retain_ampersand'] = '&'; |
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| 238 | |
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| 239 | if ($preserve_html) { |
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| 240 | // Convert characters that must remain non-entities for displaying HTML. |
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[723] | 241 | $search['retain_left_angle'] = '/</'; |
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[1] | 242 | $replace['retain_left_angle'] = '<'; |
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[42] | 243 | |
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[723] | 244 | $search['retain_right_angle'] = '/>/'; |
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[1] | 245 | $replace['retain_right_angle'] = '>'; |
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[42] | 246 | |
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[723] | 247 | $search['retain_single_quote'] = '/'/'; |
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[1] | 248 | $replace['retain_single_quote'] = "'"; |
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[42] | 249 | |
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[723] | 250 | $search['retain_double_quote'] = '/"/'; |
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[1] | 251 | $replace['retain_double_quote'] = '"'; |
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| 252 | } |
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| 253 | |
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[334] | 254 | // & becomes &. Exclude any occurrence where the & is followed by a alphanum or unicode character. |
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[32] | 255 | $search['ampersand'] = '/&(?![\w\d#]{1,10};)/'; |
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| 256 | $replace['ampersand'] = '&'; |
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[1] | 257 | |
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[334] | 258 | return preg_replace($search, $replace, htmlspecialchars($text, ENT_QUOTES, $app->getParam('character_set'))); |
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[1] | 259 | } |
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| 260 | |
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| 261 | /** |
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[334] | 262 | * Returns text with stylistic modifications. Warning: this will break some HTML attributes! |
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[320] | 263 | * TODO: Allow a string such as this to be passed: <a href="javascript:openPopup('/foo/bar.php')">Click here</a> |
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[1] | 264 | * |
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[257] | 265 | * @param string $text Text to clean. |
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[1] | 266 | * @return string Cleaned text. |
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| 267 | */ |
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[653] | 268 | function fancyTxt($text, $extra_search=null, $extra_replace=null) |
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[1] | 269 | { |
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[103] | 270 | $search = array(); |
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| 271 | $replace = array(); |
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| 272 | |
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[653] | 273 | // "double quoted text" â âdouble quoted textâ |
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| 274 | $search['_double_quotes'] = '/(?<=^|[^\w=(])(?:"|"|�?34;|"|“)([\w\'.âŠ(ââ-][^"]*?)(?:"|"|�?34;|"|”)(?=[^)\w]|$)/imsu'; // " is the same as " and " and " and " |
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| 275 | $replace['_double_quotes'] = 'â$1â'; |
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[103] | 276 | |
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[653] | 277 | // text's apostrophes â textâs apostrophes (except foot marks: 6'3") |
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| 278 | $search['_apostrophe'] = '/(?<=[a-z])(?:\'|�?39;)(?=\w)/imsu'; |
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| 279 | $replace['_apostrophe'] = 'â'; |
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[103] | 280 | |
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[653] | 281 | // 'single quoted text' â âsingle quoted textâ |
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| 282 | $search['_single_quotes'] = '/(?<=^|[^\w=(])(?:\'|�?39;|‘)([\w"][^\']+?)(?:\'|�?39;|’)(?=[^)\w]|$)/imsu'; |
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| 283 | $replace['_single_quotes'] = 'â$1â'; |
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[103] | 284 | |
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[653] | 285 | // plural posessives' apostrophes â posessivesâ (except foot marks: 6') |
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| 286 | $search['_apostrophes'] = '/(?<=s)(?:\'|�?39;|’)(?=\s)/imsu'; |
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| 287 | $replace['_apostrophes'] = 'â'; |
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[103] | 288 | |
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[653] | 289 | // double--hyphens â en â dashes |
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| 290 | $search['_em_dash'] = '/(?<=[\w\s"\'ââ)])--(?=[\w\sâââ"\'(?])/imsu'; |
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| 291 | $replace['_em_dash'] = ' â '; |
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[103] | 292 | |
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[653] | 293 | // ... â ⊠|
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| 294 | $search['_elipsis'] = '/(?<=^|[^.])\.\.\.(?=[^.]|$)/imsu'; |
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| 295 | $replace['_elipsis'] = 'âŠ'; |
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| 296 | |
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| 297 | if (is_array($extra_search) && is_array($extra_replace) && sizeof($extra_search) == sizeof($extra_replace)) { |
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| 298 | // Append additional search replacements. |
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| 299 | $search = array_merge($search, $extra_search); |
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| 300 | $replace = array_merge($replace, $extra_replace); |
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| 301 | } |
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| 302 | |
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| 303 | return trim(preg_replace($search, $replace, $text)); |
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[1] | 304 | } |
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| 305 | |
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[505] | 306 | /* |
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| 307 | * Finds all URLs in text and hyperlinks them. |
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| 308 | * |
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| 309 | * @access public |
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| 310 | * @param string $text Text to search for URLs. |
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[541] | 311 | * @param bool $strict True to only include URLs starting with a scheme (http:// ftp:// im://), or false to include URLs starting with 'www.'. |
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[505] | 312 | * @param mixed $length Number of characters to truncate URL, or NULL to disable truncating. |
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| 313 | * @param string $delim Delimiter to append, indicate truncation. |
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| 314 | * @return string Same input text, but URLs hyperlinked. |
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| 315 | * @author Quinn Comendant <quinn@strangecode.com> |
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[647] | 316 | * @version 2.2 |
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[505] | 317 | * @since 22 Mar 2015 23:29:04 |
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| 318 | */ |
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[541] | 319 | function hyperlinkTxt($text, $strict=false, $length=null, $delim='âŠ') |
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[505] | 320 | { |
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[545] | 321 | // A list of schemes we allow at the beginning of a URL. |
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| 322 | $schemes = 'mailto:|tel:|skype:|callto:|facetime:|bitcoin:|geo:|magnet:\?|sip:|sms:|xmpp:|view-source:(?:https?://)?|[\w-]{2,}://'; |
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| 323 | |
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[541] | 324 | // Capture the full URL into the first match and only the first X characters into the second match. |
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[647] | 325 | // This will match URLs not preceded by " ' or = (URLs inside an attribute) or ` (Markdown quoted) or double-scheme (http://http://www.asdf.com) |
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[715] | 326 | // https://stackoverflow.com/questions/1547899/which-characters-make-a-url-invalid/1547940#1547940 |
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[541] | 327 | $regex = '@ |
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[647] | 328 | \b # Start with a word-boundary. |
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| 329 | (?<!"|\'|=|>|`|\]\(|\[\d\] |[:/]/) # Negative look-behind to exclude URLs already in <a> tag, <tags>beween</tags>, `Markdown quoted`, [Markdown](link), [1] www.markdown.footnotes, and avoid broken:/ and doubled://schemes:// |
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| 330 | ( # Begin match 1 |
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| 331 | ( # Begin match 2 |
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| 332 | (?:%s) # URL starts with known scheme or www. if strict = false |
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| 333 | [^\s/$.?#]+ # Any domain-valid characters |
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| 334 | [^\s"`<>]{1,%s} # Match 2 is limited to a maximum of LENGTH valid URL characters |
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[541] | 335 | ) |
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[647] | 336 | [^\s"`<>]* # Match 1 continues with any further valid URL characters |
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| 337 | ([^\P{Any}\sâŠ<>«»"ââ%s]) # Final character not a space or common end-of-sentence punctuation (.,:;?!, etc). Using double negation set, see http://stackoverflow.com/a/4786560/277303 |
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[541] | 338 | ) |
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| 339 | @Suxi |
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| 340 | '; |
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| 341 | $regex = sprintf($regex, |
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[545] | 342 | ($strict ? $schemes : $schemes . '|www\.'), // Strict=false adds "www." to the list of allowed start-of-URL. |
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| 343 | ($length ? $length : ''), |
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| 344 | ($strict ? '' : '?!.,:;)\'-') // Strict=false excludes some "URL-valid" characters from the last character of URL. (Hyphen must remain last character in this class.) |
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[505] | 345 | ); |
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[541] | 346 | |
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| 347 | // Use a callback function to decide when to append the delim. |
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| 348 | // Also encode special chars with oTxt(). |
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| 349 | return preg_replace_callback($regex, function ($m) use ($length, $delim) { |
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| 350 | $url = $m[1]; |
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[545] | 351 | $truncated_url = $m[2] . $m[3]; |
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[541] | 352 | $absolute_url = preg_replace('!^www\.!', 'http://www.', $url); |
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| 353 | if (is_null($length) || $url == $truncated_url) { |
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| 354 | // If not truncating, or URL was not truncated. |
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[545] | 355 | // Remove http schemas, and any single trailing / to make the display URL. |
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[696] | 356 | $display_url = preg_replace(['!^https?://!u', '!^([^/]+)/$!u'], ['', '$1'], $url); |
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[763] | 357 | return sprintf('<a href="%s">%s</a>', oTxt($absolute_url), oTxt($display_url)); |
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[541] | 358 | } else { |
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| 359 | // Truncated URL. |
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[545] | 360 | // Remove http schemas, and any single trailing / to make the display URL. |
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[696] | 361 | $display_url = preg_replace(['!^https?://!u', '!^([^/]+)/$!u'], ['', '$1'], trim($truncated_url)); |
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[763] | 362 | return sprintf('<a href="%s">%s%s</a>', oTxt($absolute_url), oTxt($display_url), $delim); |
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[541] | 363 | } |
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| 364 | }, $text); |
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[505] | 365 | } |
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| 366 | |
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[257] | 367 | /** |
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[334] | 368 | * Applies a class to search terms to highlight them ala google results. |
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[257] | 369 | * |
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| 370 | * @param string $text Input text to search. |
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| 371 | * @param string $search String of word(s) that will be highlighted. |
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| 372 | * @param string $class CSS class to apply. |
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| 373 | * @return string Text with searched words wrapped in <span>. |
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| 374 | */ |
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| 375 | function highlightWords($text, $search, $class='sc-highlightwords') |
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| 376 | { |
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[724] | 377 | $app =& App::getInstance(); |
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| 378 | |
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[257] | 379 | $words = preg_split('/[^\w]/', $search, -1, PREG_SPLIT_NO_EMPTY); |
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[454] | 380 | |
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[257] | 381 | $search = array(); |
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| 382 | $replace = array(); |
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[454] | 383 | |
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[257] | 384 | foreach ($words as $w) { |
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[258] | 385 | if ('' != trim($w)) { |
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[724] | 386 | $search[] = '/\b(' . preg_quote($w) . ')\b/i' . $app->getParam('preg_u'); |
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[763] | 387 | $replace[] = '<span class="' . oTxt($class) . '">$1</span>'; |
---|
[258] | 388 | } |
---|
[257] | 389 | } |
---|
[42] | 390 | |
---|
[258] | 391 | return empty($replace) ? $text : preg_replace($search, $replace, $text); |
---|
[257] | 392 | } |
---|
| 393 | |
---|
[1] | 394 | /** |
---|
[334] | 395 | * Generates a hexadecimal html color based on provided word. |
---|
[1] | 396 | * |
---|
| 397 | * @access public |
---|
| 398 | * @param string $text A string for which to convert to color. |
---|
[759] | 399 | * @param float $n Brightness value between 0-1. |
---|
| 400 | * @return string A hexadecimal html color. |
---|
[1] | 401 | */ |
---|
[534] | 402 | function getTextColor($text, $method=1, $n=0.87) |
---|
[1] | 403 | { |
---|
[235] | 404 | $hash = md5($text); |
---|
| 405 | $rgb = array( |
---|
[247] | 406 | mb_substr($hash, 0, 1), |
---|
| 407 | mb_substr($hash, 1, 1), |
---|
| 408 | mb_substr($hash, 2, 1), |
---|
| 409 | mb_substr($hash, 3, 1), |
---|
| 410 | mb_substr($hash, 4, 1), |
---|
| 411 | mb_substr($hash, 5, 1), |
---|
[235] | 412 | ); |
---|
[1] | 413 | |
---|
| 414 | switch ($method) { |
---|
[235] | 415 | case 1 : |
---|
| 416 | default : |
---|
[334] | 417 | // Reduce all hex values slightly to avoid all white. |
---|
[696] | 418 | array_walk($rgb, function (&$v) use ($n) { |
---|
| 419 | $v = dechex(round(hexdec($v) * $n)); |
---|
| 420 | }); |
---|
[235] | 421 | break; |
---|
[696] | 422 | |
---|
[1] | 423 | case 2 : |
---|
[235] | 424 | foreach ($rgb as $i => $v) { |
---|
| 425 | if (hexdec($v) > hexdec('c')) { |
---|
| 426 | $rgb[$i] = dechex(hexdec('f') - hexdec($v)); |
---|
| 427 | } |
---|
[1] | 428 | } |
---|
| 429 | break; |
---|
| 430 | } |
---|
| 431 | |
---|
[235] | 432 | return join('', $rgb); |
---|
[1] | 433 | } |
---|
| 434 | |
---|
| 435 | /** |
---|
| 436 | * Encodes a string into unicode values 128-255. |
---|
| 437 | * Useful for hiding an email address from spambots. |
---|
| 438 | * |
---|
| 439 | * @access public |
---|
| 440 | * @param string $text A line of text to encode. |
---|
| 441 | * @return string Encoded text. |
---|
| 442 | */ |
---|
| 443 | function encodeAscii($text) |
---|
| 444 | { |
---|
[255] | 445 | $output = ''; |
---|
[247] | 446 | $num = mb_strlen($text); |
---|
[1] | 447 | for ($i=0; $i<$num; $i++) { |
---|
[729] | 448 | $output .= sprintf('&#%03s', ord($text[$i])); |
---|
[1] | 449 | } |
---|
| 450 | return $output; |
---|
| 451 | } |
---|
| 452 | |
---|
| 453 | /** |
---|
[84] | 454 | * Encodes an email into a "user at domain dot com" format. |
---|
[9] | 455 | * |
---|
| 456 | * @access public |
---|
| 457 | * @param string $email An email to encode. |
---|
| 458 | * @param string $at Replaces the @. |
---|
| 459 | * @param string $dot Replaces the .. |
---|
| 460 | * @return string Encoded email. |
---|
| 461 | */ |
---|
[53] | 462 | function encodeEmail($email, $at=' at ', $dot=' dot ') |
---|
[9] | 463 | { |
---|
[724] | 464 | $app =& App::getInstance(); |
---|
| 465 | |
---|
| 466 | $search = array('/@/' . $app->getParam('preg_u'), '/\./' . $app->getParam('preg_u')); |
---|
[9] | 467 | $replace = array($at, $dot); |
---|
| 468 | return preg_replace($search, $replace, $email); |
---|
| 469 | } |
---|
| 470 | |
---|
| 471 | /** |
---|
[454] | 472 | * Truncates "a really long string" into a string of specified length |
---|
| 473 | * at the beginning: "âŠlong string" |
---|
| 474 | * at the middle: "a reaâŠstring" |
---|
| 475 | * or at the end: "a reallyâŠ". |
---|
[84] | 476 | * |
---|
[454] | 477 | * The regular expressions below first match and replace the string to the specified length and position, |
---|
| 478 | * and secondly they remove any whitespace from around the delimiter (to avoid "this ⊠" from happening). |
---|
| 479 | * |
---|
[84] | 480 | * @access public |
---|
| 481 | * @param string $str Input string |
---|
| 482 | * @param int $len Maximum string length. |
---|
| 483 | * @param string $where Where to cut the string. One of: 'start', 'middle', or 'end'. |
---|
[454] | 484 | * @return string Truncated output string. |
---|
[84] | 485 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 486 | * @since 29 Mar 2006 13:48:49 |
---|
| 487 | */ |
---|
[454] | 488 | function truncate($str, $len=50, $where='end', $delim='âŠ') |
---|
[84] | 489 | { |
---|
[724] | 490 | $app =& App::getInstance(); |
---|
| 491 | |
---|
[454] | 492 | $dlen = mb_strlen($delim); |
---|
| 493 | if ($len <= $dlen || mb_strlen($str) <= $dlen) { |
---|
| 494 | return substr($str, 0, $len); |
---|
[240] | 495 | } |
---|
[454] | 496 | $part1 = floor(($len - $dlen) / 2); |
---|
| 497 | $part2 = ceil(($len - $dlen) / 2); |
---|
[531] | 498 | |
---|
| 499 | if ($len > ini_get('pcre.backtrack_limit')) { |
---|
| 500 | $app =& App::getInstance(); |
---|
| 501 | $app->logMsg(sprintf('Asked to truncate string len of %s > pcre.backtrack_limit of %s', $len, ini_get('pcre.backtrack_limit')), LOG_DEBUG, __FILE__, __LINE__); |
---|
| 502 | ini_set('pcre.backtrack_limit', $len); |
---|
| 503 | } |
---|
| 504 | |
---|
[84] | 505 | switch ($where) { |
---|
| 506 | case 'start' : |
---|
[724] | 507 | return preg_replace(array(sprintf('/^.{%s,}(.{%s})$/s' . $app->getParam('preg_u'), $dlen + 1, $part1 + $part2), sprintf('/\s*%s{%s,}\s*/s' . $app->getParam('preg_u'), preg_quote($delim), $dlen)), array($delim . '$1', $delim), $str); |
---|
[454] | 508 | |
---|
[84] | 509 | case 'middle' : |
---|
[724] | 510 | return preg_replace(array(sprintf('/^(.{%s}).{%s,}(.{%s})$/s' . $app->getParam('preg_u'), $part1, $dlen + 1, $part2), sprintf('/\s*%s{%s,}\s*/s' . $app->getParam('preg_u'), preg_quote($delim), $dlen)), array('$1' . $delim . '$2', $delim), $str); |
---|
[454] | 511 | |
---|
[84] | 512 | case 'end' : |
---|
[454] | 513 | default : |
---|
[724] | 514 | return preg_replace(array(sprintf('/^(.{%s}).{%s,}$/s' . $app->getParam('preg_u'), $part1 + $part2, $dlen + 1), sprintf('/\s*%s{%s,}\s*/s' . $app->getParam('preg_u'), preg_quote($delim), $dlen)), array('$1' . $delim, $delim), $str); |
---|
[84] | 515 | } |
---|
| 516 | } |
---|
| 517 | |
---|
[340] | 518 | /* |
---|
| 519 | * A substitution for the missing mb_ucfirst function. |
---|
| 520 | * |
---|
| 521 | * @access public |
---|
[414] | 522 | * @param string $string The string |
---|
| 523 | * @return string String with upper-cased first character. |
---|
[340] | 524 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 525 | * @version 1.0 |
---|
| 526 | * @since 06 Dec 2008 17:04:01 |
---|
| 527 | */ |
---|
[454] | 528 | if (!function_exists('mb_ucfirst')) { |
---|
[340] | 529 | function mb_ucfirst($string) |
---|
| 530 | { |
---|
| 531 | return mb_strtoupper(mb_substr($string, 0, 1)) . mb_substr($string, 1, mb_strlen($string)); |
---|
| 532 | } |
---|
| 533 | } |
---|
| 534 | |
---|
[414] | 535 | /* |
---|
| 536 | * A substitution for the missing mb_strtr function. |
---|
| 537 | * |
---|
| 538 | * @access public |
---|
| 539 | * @param string $string The string |
---|
| 540 | * @param string $from String of characters to translate from |
---|
| 541 | * @param string $to String of characters to translate to |
---|
| 542 | * @return string String with translated characters. |
---|
| 543 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 544 | * @version 1.0 |
---|
| 545 | * @since 20 Jan 2013 12:33:26 |
---|
| 546 | */ |
---|
[454] | 547 | if (!function_exists('mb_strtr')) { |
---|
[414] | 548 | function mb_strtr($string, $from, $to) |
---|
| 549 | { |
---|
| 550 | return str_replace(mb_split('.', $from), mb_split('.', $to), $string); |
---|
| 551 | } |
---|
| 552 | } |
---|
| 553 | |
---|
[474] | 554 | /* |
---|
| 555 | * A substitution for the missing mb_str_pad function. |
---|
| 556 | * |
---|
| 557 | * @access public |
---|
| 558 | * @param string $input The string that receives padding. |
---|
| 559 | * @param string $pad_length Total length of resultant string. |
---|
| 560 | * @param string $pad_string The string to use for padding |
---|
| 561 | * @param string $pad_type Flags STR_PAD_RIGHT or STR_PAD_LEFT or STR_PAD_BOTH |
---|
| 562 | * @return string String with translated characters. |
---|
| 563 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 564 | * @version 1.0 |
---|
| 565 | * @since 20 Jan 2013 12:33:26 |
---|
| 566 | */ |
---|
| 567 | if (!function_exists('mb_str_pad')) { |
---|
| 568 | function mb_str_pad($input, $pad_length, $pad_string=' ', $pad_type=STR_PAD_RIGHT) { |
---|
| 569 | $diff = strlen($input) - mb_strlen($input); |
---|
| 570 | return str_pad($input, $pad_length + $diff, $pad_string, $pad_type); |
---|
| 571 | } |
---|
| 572 | } |
---|
| 573 | |
---|
[84] | 574 | /** |
---|
[338] | 575 | * Return a human readable disk space measurement. Input value measured in bytes. |
---|
[1] | 576 | * |
---|
[338] | 577 | * @param int $size Size in bytes. |
---|
[1] | 578 | * @param int $unit The maximum unit |
---|
| 579 | * @param int $format The return string format |
---|
| 580 | * @author Aidan Lister <aidan@php.net> |
---|
[362] | 581 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 582 | * @version 1.2.0 |
---|
[1] | 583 | */ |
---|
[338] | 584 | function humanFileSize($size, $format='%01.2f %s', $max_unit=null, $multiplier=1024) |
---|
[1] | 585 | { |
---|
| 586 | // Units |
---|
| 587 | $units = array('B', 'KB', 'MB', 'GB', 'TB'); |
---|
| 588 | $ii = count($units) - 1; |
---|
[42] | 589 | |
---|
[1] | 590 | // Max unit |
---|
[154] | 591 | $max_unit = array_search((string) $max_unit, $units); |
---|
| 592 | if ($max_unit === null || $max_unit === false) { |
---|
| 593 | $max_unit = $ii; |
---|
[1] | 594 | } |
---|
[42] | 595 | |
---|
[1] | 596 | // Loop |
---|
| 597 | $i = 0; |
---|
[338] | 598 | while ($max_unit != $i && $size >= $multiplier && $i < $ii) { |
---|
| 599 | $size /= $multiplier; |
---|
[1] | 600 | $i++; |
---|
| 601 | } |
---|
[42] | 602 | |
---|
[1] | 603 | return sprintf($format, $size, $units[$i]); |
---|
| 604 | } |
---|
| 605 | |
---|
[180] | 606 | /* |
---|
[189] | 607 | * Returns a human readable amount of time for the given amount of seconds. |
---|
[454] | 608 | * |
---|
[180] | 609 | * 45 seconds |
---|
| 610 | * 12 minutes |
---|
| 611 | * 3.5 hours |
---|
| 612 | * 2 days |
---|
| 613 | * 1 week |
---|
| 614 | * 4 months |
---|
[454] | 615 | * |
---|
[180] | 616 | * Months are calculated using the real number of days in a year: 365.2422 / 12. |
---|
| 617 | * |
---|
| 618 | * @access public |
---|
[189] | 619 | * @param int $seconds Seconds of time. |
---|
[180] | 620 | * @param string $max_unit Key value from the $units array. |
---|
| 621 | * @param string $format Sprintf formatting string. |
---|
| 622 | * @return string Value of units elapsed. |
---|
| 623 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 624 | * @version 1.0 |
---|
| 625 | * @since 23 Jun 2006 12:15:19 |
---|
| 626 | */ |
---|
[189] | 627 | function humanTime($seconds, $max_unit=null, $format='%01.1f') |
---|
[180] | 628 | { |
---|
[202] | 629 | // Units: array of seconds in the unit, singular and plural unit names. |
---|
[180] | 630 | $units = array( |
---|
| 631 | 'second' => array(1, _("second"), _("seconds")), |
---|
| 632 | 'minute' => array(60, _("minute"), _("minutes")), |
---|
| 633 | 'hour' => array(3600, _("hour"), _("hours")), |
---|
| 634 | 'day' => array(86400, _("day"), _("days")), |
---|
| 635 | 'week' => array(604800, _("week"), _("weeks")), |
---|
| 636 | 'month' => array(2629743.84, _("month"), _("months")), |
---|
| 637 | 'year' => array(31556926.08, _("year"), _("years")), |
---|
| 638 | 'decade' => array(315569260.8, _("decade"), _("decades")), |
---|
[362] | 639 | 'century' => array(3155692608, _("century"), _("centuries")), |
---|
[180] | 640 | ); |
---|
[454] | 641 | |
---|
[202] | 642 | // Max unit to calculate. |
---|
[362] | 643 | $max_unit = isset($units[$max_unit]) ? $max_unit : 'year'; |
---|
[180] | 644 | |
---|
[189] | 645 | $final_time = $seconds; |
---|
[363] | 646 | $final_unit = 'second'; |
---|
[180] | 647 | foreach ($units as $k => $v) { |
---|
[363] | 648 | if ($seconds >= $v[0]) { |
---|
[189] | 649 | $final_time = $seconds / $v[0]; |
---|
[363] | 650 | $final_unit = $k; |
---|
[180] | 651 | } |
---|
[363] | 652 | if ($max_unit == $final_unit) { |
---|
| 653 | break; |
---|
| 654 | } |
---|
[180] | 655 | } |
---|
[189] | 656 | $final_time = sprintf($format, $final_time); |
---|
[454] | 657 | return sprintf('%s %s', $final_time, (1 == $final_time ? $units[$final_unit][1] : $units[$final_unit][2])); |
---|
[180] | 658 | } |
---|
| 659 | |
---|
[722] | 660 | /* |
---|
[757] | 661 | * Calculate a prorated amount for the duration between two dates. |
---|
[752] | 662 | * |
---|
| 663 | * @access public |
---|
[757] | 664 | * @param float $amount Original price per duration. |
---|
| 665 | * @param string $duration Unit of time for the original price (`year`, `quarter`, `month`, or `day`). |
---|
| 666 | * @param string $start_date Start date of prorated period (strtotime-compatible date). |
---|
| 667 | * @param string $end_date End date of prorated period (strtotime-compatible date). |
---|
| 668 | * @return float The prorated amount. |
---|
[752] | 669 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 670 | * @since 03 Nov 2021 22:44:30 |
---|
| 671 | */ |
---|
[757] | 672 | function prorate($amount, $duration, $start_date, $end_date) |
---|
[752] | 673 | { |
---|
| 674 | $app =& App::getInstance(); |
---|
| 675 | |
---|
| 676 | switch ($duration) { |
---|
| 677 | case 'yr': |
---|
| 678 | case 'year': |
---|
| 679 | $amount_per_day = $amount / 365; |
---|
| 680 | break; |
---|
| 681 | |
---|
| 682 | case 'quarter': |
---|
| 683 | $amount_per_day = $amount / 91.25; |
---|
| 684 | break; |
---|
| 685 | |
---|
| 686 | case 'mo': |
---|
| 687 | case 'month': |
---|
| 688 | $amount_per_day = $amount / 30.4167; |
---|
| 689 | break; |
---|
| 690 | |
---|
| 691 | case 'week': |
---|
| 692 | $amount_per_day = $amount / 7; |
---|
| 693 | break; |
---|
| 694 | |
---|
| 695 | case 'day': |
---|
| 696 | $amount_per_day = $amount; |
---|
| 697 | break; |
---|
| 698 | |
---|
| 699 | default: |
---|
| 700 | $app->logMsg(sprintf('Unknown prorate duration â%sâ. Please use one of: year, yr, quarter, month, mo, week, day.', $duration), LOG_ERR, __FILE__, __LINE__); |
---|
| 701 | return false; |
---|
| 702 | } |
---|
| 703 | |
---|
| 704 | $diff_time = strtotime($end_date) - strtotime($start_date); |
---|
| 705 | $days = $diff_time / (60 * 60 * 24); |
---|
| 706 | return $amount_per_day * $days; |
---|
| 707 | } |
---|
| 708 | |
---|
| 709 | /* |
---|
[722] | 710 | * Converts strange characters into ASCII using a htmlentities hack. If a character does not have a specific rule, it will remain as its entity name, e.g., `5¢` becomes `5¢` which becomes `5cent`. |
---|
| 711 | * |
---|
| 712 | * @access public |
---|
| 713 | * @param string $str Input string of text containing accents. |
---|
| 714 | * @return string String with accented characters converted to ASCII equivalents. |
---|
| 715 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 716 | * @since 30 Apr 2020 21:29:16 |
---|
| 717 | */ |
---|
| 718 | function simplifyAccents($str) |
---|
| 719 | { |
---|
| 720 | $app =& App::getInstance(); |
---|
| 721 | |
---|
| 722 | return preg_replace([ |
---|
[724] | 723 | '/&(?=[\w\d#]{1,10};)/i' . $app->getParam('preg_u'), |
---|
| 724 | '/&([a-z]{1,2})(?:acute|cedil|circ|grave|lig|orn|ring|slash|th|tilde|uml|caron);/i' . $app->getParam('preg_u'), |
---|
| 725 | '/&(?:ndash|mdash|horbar);/i' . $app->getParam('preg_u'), |
---|
| 726 | '/&(?:nbsp);/i' . $app->getParam('preg_u'), |
---|
| 727 | '/&(?:bdquo|ldquo|ldquor|lsquo|lsquor|rdquo|rdquor|rsquo|rsquor|sbquo|lsaquo|rsaquo);/i' . $app->getParam('preg_u'), |
---|
| 728 | '/&(?:amp);/i' . $app->getParam('preg_u'), // This replacement must come after matching all other entities. |
---|
| 729 | '/[&;]+/' . $app->getParam('preg_u'), |
---|
[722] | 730 | ], [ |
---|
| 731 | '&', |
---|
| 732 | '$1', |
---|
| 733 | '-', |
---|
| 734 | ' ', |
---|
| 735 | '', |
---|
| 736 | 'and', |
---|
| 737 | '', |
---|
| 738 | ], htmlentities($str, ENT_NOQUOTES | ENT_IGNORE, $app->getParam('character_set'))); |
---|
| 739 | } |
---|
| 740 | |
---|
| 741 | /* |
---|
| 742 | * Converts a string into a URL-safe slug, removing spaces and non word characters. |
---|
| 743 | * |
---|
| 744 | * @access public |
---|
| 745 | * @param string $str String to convert. |
---|
| 746 | * @return string URL-safe slug. |
---|
| 747 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 748 | * @version 1.0 |
---|
| 749 | * @since 18 Aug 2014 12:54:29 |
---|
| 750 | */ |
---|
| 751 | function URLSlug($str) |
---|
| 752 | { |
---|
[724] | 753 | $app =& App::getInstance(); |
---|
| 754 | |
---|
| 755 | return strtolower(urlencode(preg_replace(['/[-\sââ.:;?!@#=+_\/\\\]+|(?: | |–|–|—|—|%c2%a0|%e2%80%93|%e2%80%9)+/' . $app->getParam('preg_u'), '/-+/' . $app->getParam('preg_u'), '/[^\w-]+/' . $app->getParam('preg_u'), '/^-+|-+$/' . $app->getParam('preg_u')], ['-', '-', '', ''], simplifyAccents($str)))); |
---|
[722] | 756 | } |
---|
| 757 | |
---|
[518] | 758 | /** |
---|
[722] | 759 | * Converts a string of text into a safe file name by removing non-ASCII characters and non-word characters. |
---|
[518] | 760 | * |
---|
| 761 | * @access public |
---|
| 762 | * @param string $file_name A name of a file. |
---|
[773] | 763 | * @param string $separator The_separator_used_to_delimit_filename_parts. |
---|
[518] | 764 | * @return string The same name, but cleaned. |
---|
| 765 | */ |
---|
[773] | 766 | function cleanFileName($file_name, $separator='_') |
---|
[518] | 767 | { |
---|
| 768 | $app =& App::getInstance(); |
---|
| 769 | |
---|
[773] | 770 | $file_name = preg_replace([ |
---|
| 771 | sprintf('/[^a-zA-Z0-9()@._=+-]+/%s', $app->getParam('preg_u')), |
---|
| 772 | sprintf('/^%1$s+|%1$s+$/%2$s', $separator, $app->getParam('preg_u')), |
---|
| 773 | ], [ |
---|
| 774 | $separator, |
---|
| 775 | '' |
---|
| 776 | ], simplifyAccents($file_name)); |
---|
[518] | 777 | return mb_substr($file_name, 0, 250); |
---|
| 778 | } |
---|
| 779 | |
---|
[519] | 780 | /** |
---|
| 781 | * Returns the extension of a file name, or an empty string if none exists. |
---|
| 782 | * |
---|
| 783 | * @access public |
---|
| 784 | * @param string $file_name A name of a file, with extension after a dot. |
---|
| 785 | * @return string The value found after the dot |
---|
| 786 | */ |
---|
| 787 | function getFilenameExtension($file_name) |
---|
| 788 | { |
---|
| 789 | preg_match('/.*?\.(\w+)$/i', trim($file_name), $ext); |
---|
| 790 | return isset($ext[1]) ? $ext[1] : ''; |
---|
| 791 | } |
---|
| 792 | |
---|
[487] | 793 | /* |
---|
| 794 | * Convert a php.ini value (8M, 512K, etc), into integer value of bytes. |
---|
| 795 | * |
---|
| 796 | * @access public |
---|
| 797 | * @param string $val Value from php config, e.g., upload_max_filesize. |
---|
| 798 | * @return int Value converted to bytes as an integer. |
---|
| 799 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 800 | * @version 1.0 |
---|
| 801 | * @since 20 Aug 2014 14:32:41 |
---|
| 802 | */ |
---|
| 803 | function phpIniGetBytes($val) |
---|
| 804 | { |
---|
| 805 | $val = trim(ini_get($val)); |
---|
| 806 | if ($val != '') { |
---|
[729] | 807 | $unit = strtolower($val[mb_strlen($val) - 1]); |
---|
[718] | 808 | $val = preg_replace('/\D/', '', $val); |
---|
| 809 | |
---|
| 810 | switch ($unit) { |
---|
| 811 | // No `break`, so these multiplications are cumulative. |
---|
| 812 | case 'g': |
---|
| 813 | $val *= 1024; |
---|
| 814 | case 'm': |
---|
| 815 | $val *= 1024; |
---|
| 816 | case 'k': |
---|
| 817 | $val *= 1024; |
---|
| 818 | } |
---|
[487] | 819 | } |
---|
| 820 | |
---|
| 821 | return (int)$val; |
---|
| 822 | } |
---|
| 823 | |
---|
[1] | 824 | /** |
---|
[334] | 825 | * Tests the existence of a file anywhere in the include path. |
---|
[523] | 826 | * Replaced by stream_resolve_include_path() in PHP 5 >= 5.3.2 |
---|
[258] | 827 | * |
---|
| 828 | * @param string $file File in include path. |
---|
| 829 | * @return mixed False if file not found, the path of the file if it is found. |
---|
| 830 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 831 | * @since 03 Dec 2005 14:23:26 |
---|
| 832 | */ |
---|
| 833 | function fileExistsIncludePath($file) |
---|
| 834 | { |
---|
| 835 | $app =& App::getInstance(); |
---|
[454] | 836 | |
---|
[258] | 837 | foreach (explode(PATH_SEPARATOR, get_include_path()) as $path) { |
---|
| 838 | $fullpath = $path . DIRECTORY_SEPARATOR . $file; |
---|
| 839 | if (file_exists($fullpath)) { |
---|
| 840 | $app->logMsg(sprintf('Found file "%s" at path: %s', $file, $fullpath), LOG_DEBUG, __FILE__, __LINE__); |
---|
| 841 | return $fullpath; |
---|
| 842 | } else { |
---|
| 843 | $app->logMsg(sprintf('File "%s" not found in include_path: %s', $file, get_include_path()), LOG_DEBUG, __FILE__, __LINE__); |
---|
| 844 | return false; |
---|
| 845 | } |
---|
| 846 | } |
---|
| 847 | } |
---|
| 848 | |
---|
| 849 | /** |
---|
[26] | 850 | * Returns stats of a file from the include path. |
---|
| 851 | * |
---|
| 852 | * @param string $file File in include path. |
---|
[258] | 853 | * @param mixed $stat Which statistic to return (or null to return all). |
---|
| 854 | * @return mixed Value of requested key from fstat(), or false on error. |
---|
[26] | 855 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 856 | * @since 03 Dec 2005 14:23:26 |
---|
| 857 | */ |
---|
[241] | 858 | function statIncludePath($file, $stat=null) |
---|
[26] | 859 | { |
---|
| 860 | // Open file pointer read-only using include path. |
---|
| 861 | if ($fp = fopen($file, 'r', true)) { |
---|
[258] | 862 | // File opened successfully, get stats. |
---|
[26] | 863 | $stats = fstat($fp); |
---|
| 864 | fclose($fp); |
---|
| 865 | // Return specified stats. |
---|
[241] | 866 | return is_null($stat) ? $stats : $stats[$stat]; |
---|
[26] | 867 | } else { |
---|
| 868 | return false; |
---|
| 869 | } |
---|
| 870 | } |
---|
| 871 | |
---|
[330] | 872 | /* |
---|
| 873 | * Writes content to the specified file. This function emulates the functionality of file_put_contents from PHP 5. |
---|
[400] | 874 | * It makes an exclusive lock on the file while writing. |
---|
[330] | 875 | * |
---|
| 876 | * @access public |
---|
| 877 | * @param string $filename Path to file. |
---|
| 878 | * @param string $content Data to write into file. |
---|
| 879 | * @return bool Success or failure. |
---|
| 880 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 881 | * @since 11 Apr 2006 22:48:30 |
---|
| 882 | */ |
---|
| 883 | function filePutContents($filename, $content) |
---|
| 884 | { |
---|
[479] | 885 | $app =& App::getInstance(); |
---|
[330] | 886 | |
---|
| 887 | // Open file for writing and truncate to zero length. |
---|
| 888 | if ($fp = fopen($filename, 'w')) { |
---|
| 889 | if (flock($fp, LOCK_EX)) { |
---|
| 890 | if (!fwrite($fp, $content, mb_strlen($content))) { |
---|
| 891 | $app->logMsg(sprintf('Failed writing to file: %s', $filename), LOG_ERR, __FILE__, __LINE__); |
---|
| 892 | fclose($fp); |
---|
| 893 | return false; |
---|
| 894 | } |
---|
| 895 | flock($fp, LOCK_UN); |
---|
| 896 | } else { |
---|
| 897 | $app->logMsg(sprintf('Could not lock file for writing: %s', $filename), LOG_ERR, __FILE__, __LINE__); |
---|
| 898 | fclose($fp); |
---|
| 899 | return false; |
---|
| 900 | } |
---|
| 901 | fclose($fp); |
---|
| 902 | // Success! |
---|
| 903 | $app->logMsg(sprintf('Wrote to file: %s', $filename), LOG_DEBUG, __FILE__, __LINE__); |
---|
| 904 | return true; |
---|
| 905 | } else { |
---|
| 906 | $app->logMsg(sprintf('Could not open file for writing: %s', $filename), LOG_ERR, __FILE__, __LINE__); |
---|
| 907 | return false; |
---|
| 908 | } |
---|
| 909 | } |
---|
| 910 | |
---|
[26] | 911 | /** |
---|
[1] | 912 | * If $var is net set or null, set it to $default. Otherwise leave it alone. |
---|
[334] | 913 | * Returns the final value of $var. Use to find a default value of one is not available. |
---|
[1] | 914 | * |
---|
| 915 | * @param mixed $var The variable that is being set. |
---|
| 916 | * @param mixed $default What to set it to if $val is not currently set. |
---|
[42] | 917 | * @return mixed The resulting value of $var. |
---|
[1] | 918 | */ |
---|
| 919 | function setDefault(&$var, $default='') |
---|
| 920 | { |
---|
| 921 | if (!isset($var)) { |
---|
| 922 | $var = $default; |
---|
| 923 | } |
---|
| 924 | return $var; |
---|
| 925 | } |
---|
| 926 | |
---|
| 927 | /** |
---|
| 928 | * Like preg_quote() except for arrays, it takes an array of strings and puts |
---|
| 929 | * a backslash in front of every character that is part of the regular |
---|
| 930 | * expression syntax. |
---|
| 931 | * |
---|
| 932 | * @param array $array input array |
---|
[334] | 933 | * @param array $delim optional character that will also be escaped. |
---|
[1] | 934 | * @return array an array with the same values as $array1 but shuffled |
---|
| 935 | */ |
---|
| 936 | function pregQuoteArray($array, $delim='/') |
---|
| 937 | { |
---|
| 938 | if (!empty($array)) { |
---|
| 939 | if (is_array($array)) { |
---|
| 940 | foreach ($array as $key=>$val) { |
---|
| 941 | $quoted_array[$key] = preg_quote($val, $delim); |
---|
| 942 | } |
---|
| 943 | return $quoted_array; |
---|
| 944 | } else { |
---|
| 945 | return preg_quote($array, $delim); |
---|
| 946 | } |
---|
| 947 | } |
---|
| 948 | } |
---|
| 949 | |
---|
| 950 | /** |
---|
| 951 | * Converts a PHP Array into encoded URL arguments and return them as an array. |
---|
| 952 | * |
---|
[334] | 953 | * @param mixed $data An array to transverse recursively, or a string |
---|
[1] | 954 | * to use directly to create url arguments. |
---|
| 955 | * @param string $prefix The name of the first dimension of the array. |
---|
| 956 | * If not specified, the first keys of the array will be used. |
---|
| 957 | * @return array URL with array elements as URL key=value arguments. |
---|
| 958 | */ |
---|
[235] | 959 | function urlEncodeArray($data, $prefix='', $_return=true) |
---|
| 960 | { |
---|
[1] | 961 | // Data is stored in static variable. |
---|
[590] | 962 | static $args = array(); |
---|
[42] | 963 | |
---|
[1] | 964 | if (is_array($data)) { |
---|
| 965 | foreach ($data as $key => $val) { |
---|
[334] | 966 | // If the prefix is empty, use the $key as the name of the first dimension of the "array". |
---|
| 967 | // ...otherwise, append the key as a new dimension of the "array". |
---|
[1] | 968 | $new_prefix = ('' == $prefix) ? urlencode($key) : $prefix . '[' . urlencode($key) . ']'; |
---|
| 969 | // Enter recursion. |
---|
| 970 | urlEncodeArray($val, $new_prefix, false); |
---|
| 971 | } |
---|
| 972 | } else { |
---|
[334] | 973 | // We've come to the last dimension of the array, save the "array" and its value. |
---|
[1] | 974 | $args[$prefix] = urlencode($data); |
---|
| 975 | } |
---|
[42] | 976 | |
---|
[1] | 977 | if ($_return) { |
---|
| 978 | // This is not a recursive execution. All recursion is complete. |
---|
| 979 | // Reset static var and return the result. |
---|
| 980 | $ret = $args; |
---|
| 981 | $args = array(); |
---|
| 982 | return is_array($ret) ? $ret : array(); |
---|
| 983 | } |
---|
| 984 | } |
---|
| 985 | |
---|
| 986 | /** |
---|
| 987 | * Converts a PHP Array into encoded URL arguments and return them in a string. |
---|
| 988 | * |
---|
[580] | 989 | * Todo: probably update to use the built-in http_build_query(). |
---|
| 990 | * |
---|
[334] | 991 | * @param mixed $data An array to transverse recursively, or a string |
---|
[1] | 992 | * to use directly to create url arguments. |
---|
[334] | 993 | * @param string $prefix The name of the first dimension of the array. |
---|
[1] | 994 | * If not specified, the first keys of the array will be used. |
---|
| 995 | * @return string url A string ready to append to a url. |
---|
| 996 | */ |
---|
[235] | 997 | function urlEncodeArrayToString($data, $prefix='') |
---|
| 998 | { |
---|
[1] | 999 | $array_args = urlEncodeArray($data, $prefix); |
---|
| 1000 | $url_args = ''; |
---|
| 1001 | $delim = ''; |
---|
| 1002 | foreach ($array_args as $key=>$val) { |
---|
| 1003 | $url_args .= $delim . $key . '=' . $val; |
---|
| 1004 | $delim = ini_get('arg_separator.output'); |
---|
| 1005 | } |
---|
| 1006 | return $url_args; |
---|
| 1007 | } |
---|
| 1008 | |
---|
[768] | 1009 | /* |
---|
| 1010 | * Encode/decode a string that is safe for URLs. |
---|
| 1011 | * |
---|
| 1012 | * @access public |
---|
| 1013 | * @param string $string Input string |
---|
| 1014 | * @return string Encoded/decoded string. |
---|
| 1015 | * @author Rasmus Schultz <https://www.php.net/manual/en/function.base64-encode.php#123098> |
---|
| 1016 | * @since 09 Jun 2022 07:50:49 |
---|
| 1017 | */ |
---|
| 1018 | function base64_encode_url($string) { |
---|
| 1019 | return str_replace(['+','/','='], ['-','_',''], base64_encode($string)); |
---|
| 1020 | } |
---|
| 1021 | function base64_decode_url($string) { |
---|
| 1022 | return base64_decode(str_replace(['-','_'], ['+','/'], $string)); |
---|
| 1023 | } |
---|
| 1024 | |
---|
[1] | 1025 | /** |
---|
[334] | 1026 | * Fills an array with the result from a multiple ereg search. |
---|
| 1027 | * Courtesy of Bruno - rbronosky@mac.com - 10-May-2001 |
---|
[1] | 1028 | * |
---|
| 1029 | * @param mixed $pattern regular expression needle |
---|
| 1030 | * @param mixed $string haystack |
---|
| 1031 | * @return array populated with each found result |
---|
| 1032 | */ |
---|
| 1033 | function eregAll($pattern, $string) |
---|
| 1034 | { |
---|
| 1035 | do { |
---|
[247] | 1036 | if (!mb_ereg($pattern, $string, $temp)) { |
---|
[1] | 1037 | continue; |
---|
| 1038 | } |
---|
| 1039 | $string = str_replace($temp[0], '', $string); |
---|
| 1040 | $results[] = $temp; |
---|
[247] | 1041 | } while (mb_ereg($pattern, $string, $temp)); |
---|
[1] | 1042 | return $results; |
---|
| 1043 | } |
---|
| 1044 | |
---|
| 1045 | /** |
---|
| 1046 | * Prints the word "checked" if a variable is set, and optionally matches |
---|
| 1047 | * the desired value, otherwise prints nothing, |
---|
[42] | 1048 | * used for printing the word "checked" in a checkbox form input. |
---|
[1] | 1049 | * |
---|
| 1050 | * @param mixed $var the variable to compare |
---|
| 1051 | * @param mixed $value optional, what to compare with if a specific value is required. |
---|
| 1052 | */ |
---|
| 1053 | function frmChecked($var, $value=null) |
---|
| 1054 | { |
---|
| 1055 | if (func_num_args() == 1 && $var) { |
---|
| 1056 | // 'Checked' if var is true. |
---|
| 1057 | echo ' checked="checked" '; |
---|
| 1058 | } else if (func_num_args() == 2 && $var == $value) { |
---|
| 1059 | // 'Checked' if var and value match. |
---|
| 1060 | echo ' checked="checked" '; |
---|
| 1061 | } else if (func_num_args() == 2 && is_array($var)) { |
---|
| 1062 | // 'Checked' if the value is in the key or the value of an array. |
---|
| 1063 | if (isset($var[$value])) { |
---|
| 1064 | echo ' checked="checked" '; |
---|
| 1065 | } else if (in_array($value, $var)) { |
---|
| 1066 | echo ' checked="checked" '; |
---|
| 1067 | } |
---|
| 1068 | } |
---|
| 1069 | } |
---|
| 1070 | |
---|
| 1071 | /** |
---|
| 1072 | * prints the word "selected" if a variable is set, and optionally matches |
---|
| 1073 | * the desired value, otherwise prints nothing, |
---|
[42] | 1074 | * otherwise prints nothing, used for printing the word "checked" in a |
---|
| 1075 | * select form input |
---|
[1] | 1076 | * |
---|
| 1077 | * @param mixed $var the variable to compare |
---|
| 1078 | * @param mixed $value optional, what to compare with if a specific value is required. |
---|
| 1079 | */ |
---|
| 1080 | function frmSelected($var, $value=null) |
---|
| 1081 | { |
---|
| 1082 | if (func_num_args() == 1 && $var) { |
---|
| 1083 | // 'selected' if var is true. |
---|
| 1084 | echo ' selected="selected" '; |
---|
| 1085 | } else if (func_num_args() == 2 && $var == $value) { |
---|
| 1086 | // 'selected' if var and value match. |
---|
| 1087 | echo ' selected="selected" '; |
---|
| 1088 | } else if (func_num_args() == 2 && is_array($var)) { |
---|
| 1089 | // 'selected' if the value is in the key or the value of an array. |
---|
| 1090 | if (isset($var[$value])) { |
---|
| 1091 | echo ' selected="selected" '; |
---|
| 1092 | } else if (in_array($value, $var)) { |
---|
| 1093 | echo ' selected="selected" '; |
---|
| 1094 | } |
---|
| 1095 | } |
---|
| 1096 | } |
---|
| 1097 | |
---|
| 1098 | /** |
---|
[111] | 1099 | * Adds slashes to values of an array and converts the array to a comma |
---|
| 1100 | * delimited list. If value provided is a string return the string |
---|
| 1101 | * escaped. This is useful for putting values coming in from posted |
---|
| 1102 | * checkboxes into a SET column of a database. |
---|
[1] | 1103 | * |
---|
[454] | 1104 | * |
---|
[111] | 1105 | * @param array $in Array to convert. |
---|
[1] | 1106 | * @return string Comma list of array values. |
---|
| 1107 | */ |
---|
[224] | 1108 | function escapedList($in, $separator="', '") |
---|
[1] | 1109 | { |
---|
[600] | 1110 | require_once dirname(__FILE__) . '/DB.inc.php'; |
---|
[479] | 1111 | $db =& DB::getInstance(); |
---|
[454] | 1112 | |
---|
[111] | 1113 | if (is_array($in) && !empty($in)) { |
---|
[224] | 1114 | return join($separator, array_map(array($db, 'escapeString'), $in)); |
---|
[111] | 1115 | } else { |
---|
[136] | 1116 | return $db->escapeString($in); |
---|
[1] | 1117 | } |
---|
| 1118 | } |
---|
| 1119 | |
---|
| 1120 | /** |
---|
[111] | 1121 | * Converts a human string date into a SQL-safe date. Dates nearing |
---|
| 1122 | * infinity use the date 2038-01-01 so conversion to unix time format |
---|
| 1123 | * remain within valid range. |
---|
[1] | 1124 | * |
---|
| 1125 | * @param array $date String date to convert. |
---|
[600] | 1126 | * @param array $format Date format to pass to date(). Default produces MySQL datetime: YYYY-MM-DD hh:mm:ss |
---|
[1] | 1127 | * @return string SQL-safe date. |
---|
| 1128 | */ |
---|
| 1129 | function strToSQLDate($date, $format='Y-m-d H:i:s') |
---|
| 1130 | { |
---|
[600] | 1131 | require_once dirname(__FILE__) . '/DB.inc.php'; |
---|
| 1132 | $db =& DB::getInstance(); |
---|
| 1133 | |
---|
[601] | 1134 | if ($db->isConnected() && mb_strpos($db->getParam('zero_date'), '-') !== false) { |
---|
[600] | 1135 | // Mysql version >= 5.7.4 stopped allowing a "zero" date of 0000-00-00. |
---|
| 1136 | // https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html#sqlmode_no_zero_date |
---|
[601] | 1137 | $zero_date_parts = explode('-', $db->getParam('zero_date')); |
---|
| 1138 | $zero_y = $zero_date_parts[0]; |
---|
| 1139 | $zero_m = $zero_date_parts[1]; |
---|
| 1140 | $zero_d = $zero_date_parts[2]; |
---|
[600] | 1141 | } else { |
---|
| 1142 | $zero_y = '0000'; |
---|
| 1143 | $zero_m = '00'; |
---|
| 1144 | $zero_d = '00'; |
---|
| 1145 | } |
---|
[1] | 1146 | // Translate the human string date into SQL-safe date format. |
---|
[600] | 1147 | if (empty($date) || mb_strpos($date, sprintf('%s-%s-%s', $zero_y, $zero_m, $zero_d)) !== false || strtotime($date) === -1 || strtotime($date) === false || strtotime($date) === null) { |
---|
[224] | 1148 | // Return a string of zero time, formatted the same as $format. |
---|
| 1149 | return strtr($format, array( |
---|
[600] | 1150 | 'Y' => $zero_y, |
---|
| 1151 | 'm' => $zero_m, |
---|
| 1152 | 'd' => $zero_d, |
---|
[224] | 1153 | 'H' => '00', |
---|
| 1154 | 'i' => '00', |
---|
| 1155 | 's' => '00', |
---|
| 1156 | )); |
---|
[1] | 1157 | } else { |
---|
[219] | 1158 | return date($format, strtotime($date)); |
---|
[1] | 1159 | } |
---|
| 1160 | } |
---|
| 1161 | |
---|
| 1162 | /** |
---|
| 1163 | * If magic_quotes_gpc is in use, run stripslashes() on $var. If $var is an |
---|
[334] | 1164 | * array, stripslashes is run on each value, recursively, and the stripped |
---|
[51] | 1165 | * array is returned. |
---|
[1] | 1166 | * |
---|
| 1167 | * @param mixed $var The string or array to un-quote, if necessary. |
---|
| 1168 | * @return mixed $var, minus any magic quotes. |
---|
| 1169 | */ |
---|
[523] | 1170 | function dispelMagicQuotes($var, $always=false) |
---|
[1] | 1171 | { |
---|
| 1172 | static $magic_quotes_gpc; |
---|
[42] | 1173 | |
---|
[1] | 1174 | if (!isset($magic_quotes_gpc)) { |
---|
[738] | 1175 | $magic_quotes_gpc = version_compare(PHP_VERSION, '5.4.0', '<') ? get_magic_quotes_gpc() : false; |
---|
[1] | 1176 | } |
---|
[42] | 1177 | |
---|
[523] | 1178 | if ($always || $magic_quotes_gpc) { |
---|
[1] | 1179 | if (!is_array($var)) { |
---|
| 1180 | $var = stripslashes($var); |
---|
| 1181 | } else { |
---|
| 1182 | foreach ($var as $key=>$val) { |
---|
| 1183 | if (is_array($val)) { |
---|
[523] | 1184 | $var[$key] = dispelMagicQuotes($val, $always); |
---|
[1] | 1185 | } else { |
---|
| 1186 | $var[$key] = stripslashes($val); |
---|
| 1187 | } |
---|
| 1188 | } |
---|
| 1189 | } |
---|
| 1190 | } |
---|
| 1191 | return $var; |
---|
| 1192 | } |
---|
| 1193 | |
---|
| 1194 | /** |
---|
| 1195 | * Get a form variable from GET or POST data, stripped of magic |
---|
| 1196 | * quotes if necessary. |
---|
| 1197 | * |
---|
[747] | 1198 | * @param string $key The name of a $_REQUEST key (optional). |
---|
| 1199 | * @param string $default The value to return if the variable is set (optional). |
---|
[701] | 1200 | * @return mixed A cleaned GET or POST array if no key specified. |
---|
[747] | 1201 | * @return string A cleaned form value if set, or $default. |
---|
[1] | 1202 | */ |
---|
[701] | 1203 | function getFormData($key=null, $default=null) |
---|
[1] | 1204 | { |
---|
[523] | 1205 | $app =& App::getInstance(); |
---|
| 1206 | |
---|
[718] | 1207 | if (null === $key) { |
---|
| 1208 | // Return entire array. |
---|
| 1209 | switch (strtoupper(getenv('REQUEST_METHOD'))) { |
---|
| 1210 | case 'POST': |
---|
| 1211 | return dispelMagicQuotes($_POST, $app->getParam('always_dispel_magicquotes')); |
---|
| 1212 | |
---|
| 1213 | case 'GET': |
---|
| 1214 | return dispelMagicQuotes($_GET, $app->getParam('always_dispel_magicquotes')); |
---|
| 1215 | |
---|
| 1216 | default: |
---|
| 1217 | return dispelMagicQuotes($_REQUEST, $app->getParam('always_dispel_magicquotes')); |
---|
| 1218 | } |
---|
[1] | 1219 | } |
---|
[701] | 1220 | |
---|
| 1221 | if (isset($_REQUEST[$key])) { |
---|
| 1222 | // $key is found in the flat array of REQUEST. |
---|
| 1223 | return dispelMagicQuotes($_REQUEST[$key], $app->getParam('always_dispel_magicquotes')); |
---|
| 1224 | } else if (mb_strpos($key, '[') !== false && isset($_REQUEST[strtok($key, '[')]) && preg_match_all('/\[([a-z0-9._~-]+)\]/', $key, $matches)) { |
---|
| 1225 | // $key is formatted with sub-keys, e.g., getFormData('foo[bar][baz]') and top level key (`foo`) exists in REQUEST. |
---|
| 1226 | // Extract these as sub-keys and access REQUEST as a multi-dimensional array, e.g., $_REQUEST[foo][bar][baz]. |
---|
| 1227 | $leaf = $_REQUEST[strtok($key, '[')]; |
---|
| 1228 | foreach ($matches[1] as $subkey) { |
---|
| 1229 | if (is_array($leaf) && isset($leaf[$subkey])) { |
---|
| 1230 | $leaf = $leaf[$subkey]; |
---|
| 1231 | } else { |
---|
| 1232 | $leaf = null; |
---|
| 1233 | } |
---|
| 1234 | } |
---|
| 1235 | return $leaf; |
---|
[1] | 1236 | } else { |
---|
| 1237 | return $default; |
---|
| 1238 | } |
---|
| 1239 | } |
---|
[523] | 1240 | |
---|
[701] | 1241 | function getPost($key=null, $default=null) |
---|
[1] | 1242 | { |
---|
[523] | 1243 | $app =& App::getInstance(); |
---|
| 1244 | |
---|
[701] | 1245 | if (null === $key) { |
---|
[523] | 1246 | return dispelMagicQuotes($_POST, $app->getParam('always_dispel_magicquotes')); |
---|
[1] | 1247 | } |
---|
[701] | 1248 | if (isset($_POST[$key])) { |
---|
| 1249 | return dispelMagicQuotes($_POST[$key], $app->getParam('always_dispel_magicquotes')); |
---|
[1] | 1250 | } else { |
---|
| 1251 | return $default; |
---|
| 1252 | } |
---|
| 1253 | } |
---|
[523] | 1254 | |
---|
[701] | 1255 | function getGet($key=null, $default=null) |
---|
[1] | 1256 | { |
---|
[523] | 1257 | $app =& App::getInstance(); |
---|
[701] | 1258 | |
---|
| 1259 | if (null === $key) { |
---|
[523] | 1260 | return dispelMagicQuotes($_GET, $app->getParam('always_dispel_magicquotes')); |
---|
[1] | 1261 | } |
---|
[701] | 1262 | if (isset($_GET[$key])) { |
---|
| 1263 | return dispelMagicQuotes($_GET[$key], $app->getParam('always_dispel_magicquotes')); |
---|
[1] | 1264 | } else { |
---|
| 1265 | return $default; |
---|
| 1266 | } |
---|
| 1267 | } |
---|
| 1268 | |
---|
[361] | 1269 | /* |
---|
| 1270 | * Sets a $_GET or $_POST variable. |
---|
| 1271 | * |
---|
| 1272 | * @access public |
---|
| 1273 | * @param string $key The key of the request array to set. |
---|
| 1274 | * @param mixed $val The value to save in the request array. |
---|
| 1275 | * @return void |
---|
| 1276 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 1277 | * @version 1.0 |
---|
| 1278 | * @since 01 Nov 2009 12:25:29 |
---|
| 1279 | */ |
---|
| 1280 | function putFormData($key, $val) |
---|
| 1281 | { |
---|
[560] | 1282 | switch (strtoupper(getenv('REQUEST_METHOD'))) { |
---|
| 1283 | case 'POST': |
---|
[361] | 1284 | $_POST[$key] = $val; |
---|
[560] | 1285 | break; |
---|
| 1286 | |
---|
| 1287 | case 'GET': |
---|
[361] | 1288 | $_GET[$key] = $val; |
---|
[560] | 1289 | break; |
---|
[361] | 1290 | } |
---|
[718] | 1291 | |
---|
| 1292 | $_REQUEST[$key] = $val; |
---|
[361] | 1293 | } |
---|
| 1294 | |
---|
[580] | 1295 | /* |
---|
| 1296 | * Generates a base-65-encoded sha512 hash of $string truncated to $length. |
---|
| 1297 | * |
---|
| 1298 | * @access public |
---|
| 1299 | * @param string $string Input string to hash. |
---|
| 1300 | * @param int $length Length of output hash string. |
---|
| 1301 | * @return string String of hash. |
---|
| 1302 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 1303 | * @version 1.0 |
---|
| 1304 | * @since 03 Apr 2016 19:48:49 |
---|
| 1305 | */ |
---|
| 1306 | function hash64($string, $length=18) |
---|
| 1307 | { |
---|
[724] | 1308 | $app =& App::getInstance(); |
---|
| 1309 | |
---|
| 1310 | return mb_substr(preg_replace('/[^\w]/' . $app->getParam('preg_u'), '', base64_encode(hash('sha512', $string, true))), 0, $length); |
---|
[580] | 1311 | } |
---|
| 1312 | |
---|
[1] | 1313 | /** |
---|
| 1314 | * Signs a value using md5 and a simple text key. In order for this |
---|
[502] | 1315 | * function to be useful (i.e. secure) the salt must be kept secret, which |
---|
[1] | 1316 | * means keeping it as safe as database credentials. Putting it into an |
---|
| 1317 | * environment variable set in httpd.conf is a good place. |
---|
| 1318 | * |
---|
| 1319 | * @access public |
---|
| 1320 | * @param string $val The string to sign. |
---|
[159] | 1321 | * @param string $salt (Optional) A text key to use for computing the signature. |
---|
[282] | 1322 | * @param string $length (Optional) The length of the added signature. Longer signatures are safer. Must match the length passed to verifySignature() for the signatures to match. |
---|
[1] | 1323 | * @return string The original value with a signature appended. |
---|
| 1324 | */ |
---|
[282] | 1325 | function addSignature($val, $salt=null, $length=18) |
---|
[1] | 1326 | { |
---|
[159] | 1327 | $app =& App::getInstance(); |
---|
[454] | 1328 | |
---|
[159] | 1329 | if ('' == trim($val)) { |
---|
[201] | 1330 | $app->logMsg(sprintf('Cannot add signature to an empty string.', null), LOG_INFO, __FILE__, __LINE__); |
---|
[159] | 1331 | return ''; |
---|
[1] | 1332 | } |
---|
[42] | 1333 | |
---|
[159] | 1334 | if (!isset($salt)) { |
---|
| 1335 | $salt = $app->getParam('signing_key'); |
---|
[1] | 1336 | } |
---|
[454] | 1337 | |
---|
[500] | 1338 | switch ($app->getParam('signing_method')) { |
---|
| 1339 | case 'sha512+base64': |
---|
[724] | 1340 | return $val . '-' . mb_substr(preg_replace('/[^\w]/' . $app->getParam('preg_u'), '', base64_encode(hash('sha512', $val . $salt, true))), 0, $length); |
---|
[500] | 1341 | |
---|
| 1342 | case 'md5': |
---|
| 1343 | default: |
---|
| 1344 | return $val . '-' . mb_strtolower(mb_substr(md5($salt . md5($val . $salt)), 0, $length)); |
---|
| 1345 | } |
---|
[1] | 1346 | } |
---|
| 1347 | |
---|
| 1348 | /** |
---|
| 1349 | * Strips off the signature appended by addSignature(). |
---|
| 1350 | * |
---|
| 1351 | * @access public |
---|
| 1352 | * @param string $signed_val The string to sign. |
---|
| 1353 | * @return string The original value with a signature removed. |
---|
| 1354 | */ |
---|
| 1355 | function removeSignature($signed_val) |
---|
| 1356 | { |
---|
[249] | 1357 | if (empty($signed_val) || mb_strpos($signed_val, '-') === false) { |
---|
| 1358 | return ''; |
---|
| 1359 | } |
---|
[247] | 1360 | return mb_substr($signed_val, 0, mb_strrpos($signed_val, '-')); |
---|
[1] | 1361 | } |
---|
| 1362 | |
---|
| 1363 | /** |
---|
[500] | 1364 | * Verifies a signature appended to a value by addSignature(). |
---|
[1] | 1365 | * |
---|
| 1366 | * @access public |
---|
| 1367 | * @param string $signed_val A value with appended signature. |
---|
[159] | 1368 | * @param string $salt (Optional) A text key to use for computing the signature. |
---|
[502] | 1369 | * @param string $length (Optional) The length of the added signature. |
---|
[1] | 1370 | * @return bool True if the signature matches the var. |
---|
| 1371 | */ |
---|
[282] | 1372 | function verifySignature($signed_val, $salt=null, $length=18) |
---|
[1] | 1373 | { |
---|
| 1374 | // Strip the value from the signed value. |
---|
[22] | 1375 | $val = removeSignature($signed_val); |
---|
[1] | 1376 | // If the signed value matches the original signed value we consider the value safe. |
---|
[532] | 1377 | if ('' != $signed_val && $signed_val == addSignature($val, $salt, $length)) { |
---|
[1] | 1378 | // Signature verified. |
---|
| 1379 | return true; |
---|
| 1380 | } else { |
---|
[500] | 1381 | $app =& App::getInstance(); |
---|
[770] | 1382 | // A signature mismatch might occur if the signing_key is not the same across all environments, apache, cli, etc. |
---|
| 1383 | $app->logMsg(sprintf('Failed signature (%s should be %s).', $signed_val, addSignature($val, $salt, $length)), LOG_DEBUG, __FILE__, __LINE__); |
---|
[1] | 1384 | return false; |
---|
| 1385 | } |
---|
| 1386 | } |
---|
| 1387 | |
---|
| 1388 | /** |
---|
| 1389 | * Sends empty output to the browser and flushes the php buffer so the client |
---|
[42] | 1390 | * will see data before the page is finished processing. |
---|
[1] | 1391 | */ |
---|
[235] | 1392 | function flushBuffer() |
---|
| 1393 | { |
---|
[1] | 1394 | echo str_repeat(' ', 205); |
---|
| 1395 | flush(); |
---|
| 1396 | } |
---|
| 1397 | |
---|
| 1398 | /** |
---|
[667] | 1399 | * A stub for apps that still use this function. |
---|
[1] | 1400 | * |
---|
| 1401 | * @access public |
---|
[667] | 1402 | * @return void |
---|
[1] | 1403 | */ |
---|
| 1404 | function mailmanAddMember($email, $list, $send_welcome_message=false) |
---|
| 1405 | { |
---|
[479] | 1406 | $app =& App::getInstance(); |
---|
[667] | 1407 | $app->logMsg(sprintf('mailmanAddMember called and ignored: %s, %s, %s', $email, $list, $send_welcome_message), LOG_WARNING, __FILE__, __LINE__); |
---|
[1] | 1408 | } |
---|
| 1409 | |
---|
| 1410 | /** |
---|
[667] | 1411 | * A stub for apps that still use this function. |
---|
[1] | 1412 | * |
---|
| 1413 | * @access public |
---|
[667] | 1414 | * @return void |
---|
[1] | 1415 | */ |
---|
| 1416 | function mailmanRemoveMember($email, $list, $send_user_ack=false) |
---|
| 1417 | { |
---|
[479] | 1418 | $app =& App::getInstance(); |
---|
[667] | 1419 | $app->logMsg(sprintf('mailmanRemoveMember called and ignored: %s, %s, %s', $email, $list, $send_user_ack), LOG_WARNING, __FILE__, __LINE__); |
---|
[1] | 1420 | } |
---|
| 1421 | |
---|
[497] | 1422 | /* |
---|
| 1423 | * Returns the remote IP address, taking into consideration proxy servers. |
---|
| 1424 | * |
---|
| 1425 | * If strict checking is enabled, we will only trust REMOTE_ADDR or an HTTP header |
---|
| 1426 | * value if REMOTE_ADDR is a trusted proxy (configured as an array in $cfg['trusted_proxies']). |
---|
| 1427 | * |
---|
| 1428 | * @access public |
---|
| 1429 | * @param bool $dolookup Resolve to IP to a hostname? |
---|
| 1430 | * @param bool $trust_all_proxies Should we trust any IP address set in HTTP_* variables? Set to FALSE for secure usage. |
---|
| 1431 | * @return mixed Canonicalized IP address (or a corresponding hostname if $dolookup is true), or false if no IP was found. |
---|
| 1432 | * @author Alix Axel <http://stackoverflow.com/a/2031935/277303> |
---|
| 1433 | * @author Corey Ballou <http://blackbe.lt/advanced-method-to-obtain-the-client-ip-in-php/> |
---|
| 1434 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 1435 | * @version 1.0 |
---|
| 1436 | * @since 12 Sep 2014 19:07:46 |
---|
| 1437 | */ |
---|
| 1438 | function getRemoteAddr($dolookup=false, $trust_all_proxies=true) |
---|
[1] | 1439 | { |
---|
[497] | 1440 | global $cfg; |
---|
| 1441 | |
---|
| 1442 | if (!isset($_SERVER['REMOTE_ADDR'])) { |
---|
[507] | 1443 | // In some cases this won't be set, e.g., CLI scripts. |
---|
| 1444 | return null; |
---|
[497] | 1445 | } |
---|
| 1446 | |
---|
| 1447 | // Use an HTTP header value only if $trust_all_proxies is true or when REMOTE_ADDR is in our $cfg['trusted_proxies'] array. |
---|
| 1448 | // $cfg['trusted_proxies'] is an array of proxy server addresses we expect to see in REMOTE_ADDR. |
---|
| 1449 | if ($trust_all_proxies || isset($cfg['trusted_proxies']) && is_array($cfg['trusted_proxies']) && in_array($_SERVER['REMOTE_ADDR'], $cfg['trusted_proxies'], true)) { |
---|
| 1450 | // Then it's probably safe to use an IP address value set in an HTTP header. |
---|
[706] | 1451 | // Loop through possible IP address headers from those most likely to contain the correct value first. |
---|
| 1452 | // HTTP_CLIENT_IP: set by Apache Module mod_remoteip |
---|
| 1453 | // HTTP_REAL_IP: set by Nginx Module ngx_http_realip_module |
---|
| 1454 | // HTTP_CF_CONNECTING_IP: set by Cloudflare proxy |
---|
| 1455 | // HTTP_X_FORWARDED_FOR: defacto standard for web proxies |
---|
| 1456 | foreach (array('HTTP_CLIENT_IP', 'HTTP_REAL_IP', 'HTTP_CF_CONNECTING_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED') as $key) { |
---|
[497] | 1457 | // Loop through and if |
---|
| 1458 | if (array_key_exists($key, $_SERVER)) { |
---|
| 1459 | foreach (explode(',', $_SERVER[$key]) as $addr) { |
---|
[598] | 1460 | // Strip non-address data to avoid "PHP Warning: inet_pton(): Unrecognized address for=189.211.197.173 in ./Utilities.inc.php on line 1293" |
---|
| 1461 | $addr = preg_replace('/[^=]=/', '', $addr); |
---|
[497] | 1462 | $addr = canonicalIPAddr(trim($addr)); |
---|
[706] | 1463 | if (false !== filter_var($addr, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6 | FILTER_FLAG_IPV4 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE)) { |
---|
[497] | 1464 | return $dolookup && '' != $addr ? gethostbyaddr($addr) : $addr; |
---|
| 1465 | } |
---|
| 1466 | } |
---|
| 1467 | } |
---|
[290] | 1468 | } |
---|
[1] | 1469 | } |
---|
[497] | 1470 | |
---|
| 1471 | $addr = canonicalIPAddr(trim($_SERVER['REMOTE_ADDR'])); |
---|
| 1472 | return $dolookup && $addr ? gethostbyaddr($addr) : $addr; |
---|
[1] | 1473 | } |
---|
| 1474 | |
---|
[497] | 1475 | /* |
---|
| 1476 | * Converts an ipv4 IP address in hexadecimal form into canonical form (i.e., it removes the prefix). |
---|
| 1477 | * |
---|
| 1478 | * @access public |
---|
| 1479 | * @param string $addr IP address. |
---|
| 1480 | * @return string Canonical IP address. |
---|
| 1481 | * @author Sander Steffann <http://stackoverflow.com/a/12436099/277303> |
---|
| 1482 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 1483 | * @version 1.0 |
---|
| 1484 | * @since 15 Sep 2012 |
---|
| 1485 | */ |
---|
| 1486 | function canonicalIPAddr($addr) |
---|
| 1487 | { |
---|
[706] | 1488 | if (!preg_match('/^([0-9a-f:]+|[0-9.])$/', $addr)) { |
---|
| 1489 | // Definitely not an IPv6 or IPv4 address. |
---|
| 1490 | return $addr; |
---|
| 1491 | } |
---|
| 1492 | |
---|
[497] | 1493 | // Known prefix |
---|
| 1494 | $v4mapped_prefix_bin = pack('H*', '00000000000000000000ffff'); |
---|
| 1495 | |
---|
| 1496 | // Parse |
---|
| 1497 | $addr_bin = inet_pton($addr); |
---|
| 1498 | |
---|
| 1499 | // Check prefix |
---|
| 1500 | if (substr($addr_bin, 0, strlen($v4mapped_prefix_bin)) == $v4mapped_prefix_bin) { |
---|
| 1501 | // Strip prefix |
---|
| 1502 | $addr_bin = substr($addr_bin, strlen($v4mapped_prefix_bin)); |
---|
| 1503 | } |
---|
| 1504 | |
---|
| 1505 | // Convert back to printable address in canonical form |
---|
| 1506 | return inet_ntop($addr_bin); |
---|
| 1507 | } |
---|
| 1508 | |
---|
[1] | 1509 | /** |
---|
| 1510 | * Tests whether a given IP address can be found in an array of IP address networks. |
---|
| 1511 | * Elements of networks array can be single IP addresses or an IP address range in CIDR notation |
---|
| 1512 | * See: http://en.wikipedia.org/wiki/Classless_inter-domain_routing |
---|
| 1513 | * |
---|
| 1514 | * @access public |
---|
| 1515 | * @param string IP address to search for. |
---|
| 1516 | * @param array Array of networks to search within. |
---|
| 1517 | * @return mixed Returns the network that matched on success, false on failure. |
---|
| 1518 | */ |
---|
[497] | 1519 | function ipInRange($addr, $networks) |
---|
[1] | 1520 | { |
---|
[765] | 1521 | if (null == $addr || '' == trim($addr)) { |
---|
| 1522 | return false; |
---|
| 1523 | } |
---|
| 1524 | |
---|
[1] | 1525 | if (!is_array($networks)) { |
---|
| 1526 | $networks = array($networks); |
---|
| 1527 | } |
---|
[42] | 1528 | |
---|
[497] | 1529 | $addr_binary = sprintf('%032b', ip2long($addr)); |
---|
[1] | 1530 | foreach ($networks as $network) { |
---|
[715] | 1531 | if (mb_strpos($network, '/') !== false) { |
---|
[1] | 1532 | // IP is in CIDR notation. |
---|
[247] | 1533 | list($cidr_ip, $cidr_bitmask) = explode('/', $network); |
---|
[1] | 1534 | $cidr_ip_binary = sprintf('%032b', ip2long($cidr_ip)); |
---|
[497] | 1535 | if (mb_substr($addr_binary, 0, $cidr_bitmask) === mb_substr($cidr_ip_binary, 0, $cidr_bitmask)) { |
---|
[1] | 1536 | // IP address is within the specified IP range. |
---|
| 1537 | return $network; |
---|
| 1538 | } |
---|
| 1539 | } else { |
---|
[497] | 1540 | if ($addr === $network) { |
---|
[1] | 1541 | // IP address exactly matches. |
---|
| 1542 | return $network; |
---|
| 1543 | } |
---|
| 1544 | } |
---|
| 1545 | } |
---|
[42] | 1546 | |
---|
[1] | 1547 | return false; |
---|
| 1548 | } |
---|
| 1549 | |
---|
| 1550 | /** |
---|
[159] | 1551 | * If the given $url is on the same web site, return true. This can be used to |
---|
| 1552 | * prevent from sending sensitive info in a get query (like the SID) to another |
---|
| 1553 | * domain. |
---|
| 1554 | * |
---|
| 1555 | * @param string $url the URI to test. |
---|
| 1556 | * @return bool True if given $url is our domain or has no domain (is a relative url), false if it's another. |
---|
| 1557 | */ |
---|
| 1558 | function isMyDomain($url) |
---|
| 1559 | { |
---|
| 1560 | static $urls = array(); |
---|
| 1561 | |
---|
| 1562 | if (!isset($urls[$url])) { |
---|
[670] | 1563 | if (!preg_match('!^https?://!i', $url)) { |
---|
[159] | 1564 | // If we can't find a domain we assume the URL is local (i.e. "/my/url/path/" or "../img/file.jpg"). |
---|
| 1565 | $urls[$url] = true; |
---|
| 1566 | } else { |
---|
[670] | 1567 | $urls[$url] = preg_match('!^https?://' . preg_quote(getenv('HTTP_HOST'), '!') . '!i', $url); |
---|
[159] | 1568 | } |
---|
| 1569 | } |
---|
| 1570 | return $urls[$url]; |
---|
| 1571 | } |
---|
| 1572 | |
---|
| 1573 | /** |
---|
| 1574 | * Takes a URL and returns it without the query or anchor portion |
---|
| 1575 | * |
---|
| 1576 | * @param string $url any kind of URI |
---|
| 1577 | * @return string the URI with ? or # and everything after removed |
---|
| 1578 | */ |
---|
| 1579 | function stripQuery($url) |
---|
| 1580 | { |
---|
[724] | 1581 | $app =& App::getInstance(); |
---|
| 1582 | |
---|
| 1583 | return preg_replace('/[?#].*$/' . $app->getParam('preg_u'), '', $url); |
---|
[159] | 1584 | } |
---|
| 1585 | |
---|
[742] | 1586 | /* |
---|
| 1587 | * Merge query arguments into a URL. |
---|
| 1588 | * Usage: |
---|
| 1589 | * Add ?lang=it or replace an existing ?lang= argument: |
---|
| 1590 | * $url = urlMerge('https://example.com/?lang=en', ['lang' => 'it']). |
---|
| 1591 | * |
---|
| 1592 | * @access public |
---|
| 1593 | * @param string $url Original URL. |
---|
| 1594 | * @param array $new_args New/modified query arguments. |
---|
| 1595 | * @return string Modified URL. |
---|
| 1596 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 1597 | * @since 20 Feb 2021 21:21:53 |
---|
| 1598 | */ |
---|
| 1599 | function urlMergeQuery($url, Array $new_args) |
---|
| 1600 | { |
---|
| 1601 | $u = parse_url($url); |
---|
| 1602 | if (isset($u['query']) && '' != $u['query']) { |
---|
| 1603 | parse_str($u['query'], $args); |
---|
| 1604 | } else { |
---|
| 1605 | $args = []; |
---|
| 1606 | } |
---|
| 1607 | $u['query'] = http_build_query(array_merge($args, $new_args)); |
---|
| 1608 | return sprintf('%s%s%s%s%s', |
---|
| 1609 | (isset($u['scheme']) && '' != $u['scheme'] ? $u['scheme'] . '://' : ''), |
---|
| 1610 | (isset($u['host']) && '' != $u['host'] ? $u['host'] : ''), |
---|
| 1611 | (isset($u['path']) && '' != $u['path'] ? $u['path'] : '/'), |
---|
| 1612 | (isset($u['query']) && '' != $u['query'] ? '?' . $u['query'] : ''), |
---|
| 1613 | (isset($u['fragment']) && '' != $u['fragment'] ? '#' . $u['fragment'] : '') |
---|
| 1614 | ); |
---|
| 1615 | } |
---|
| 1616 | |
---|
[159] | 1617 | /** |
---|
[690] | 1618 | * Returns a fully qualified URL to the current script, including the query. If you don't need the scheme://, use REQUEST_URI instead. |
---|
[1] | 1619 | * |
---|
| 1620 | * @return string a full url to the current script |
---|
| 1621 | */ |
---|
| 1622 | function absoluteMe() |
---|
| 1623 | { |
---|
[724] | 1624 | $app =& App::getInstance(); |
---|
| 1625 | |
---|
| 1626 | $safe_http_host = preg_replace('/[^a-z\d.:-]/' . $app->getParam('preg_u'), '', getenv('HTTP_HOST')); |
---|
[670] | 1627 | return sprintf('%s://%s%s', (getenv('HTTPS') ? 'https' : 'http'), $safe_http_host, getenv('REQUEST_URI')); |
---|
[1] | 1628 | } |
---|
| 1629 | |
---|
| 1630 | /** |
---|
| 1631 | * Compares the current url with the referring url. |
---|
| 1632 | * |
---|
[159] | 1633 | * @param bool $exclude_query Remove the query string first before comparing. |
---|
[334] | 1634 | * @return bool True if the current URL is the same as the referring URL, false otherwise. |
---|
[1] | 1635 | */ |
---|
| 1636 | function refererIsMe($exclude_query=false) |
---|
| 1637 | { |
---|
[580] | 1638 | $current_url = absoluteMe(); |
---|
[598] | 1639 | $referrer_url = getenv('HTTP_REFERER'); |
---|
[580] | 1640 | |
---|
| 1641 | // If one of the hostnames is an IP address, compare only the path of both. |
---|
| 1642 | if (preg_match('/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/', parse_url($current_url, PHP_URL_HOST)) || preg_match('/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/', parse_url($referrer_url, PHP_URL_HOST))) { |
---|
[696] | 1643 | $current_url = preg_replace('@^https?://[^/]+@u', '', $current_url); |
---|
| 1644 | $referrer_url = preg_replace('@^https?://[^/]+@u', '', $referrer_url); |
---|
[580] | 1645 | } |
---|
| 1646 | |
---|
[1] | 1647 | if ($exclude_query) { |
---|
[598] | 1648 | return (stripQuery($current_url) == stripQuery($referrer_url)); |
---|
[1] | 1649 | } else { |
---|
[580] | 1650 | $app =& App::getInstance(); |
---|
[598] | 1651 | $app->logMsg(sprintf('refererIsMe comparison: %s == %s', $current_url, $referrer_url), LOG_DEBUG, __FILE__, __LINE__); |
---|
| 1652 | return ($current_url == $referrer_url); |
---|
[1] | 1653 | } |
---|
| 1654 | } |
---|
[520] | 1655 | |
---|
| 1656 | /* |
---|
[591] | 1657 | * Returns true if the given URL resolves to a resource with a HTTP 2xx or 3xx header response. |
---|
[606] | 1658 | * The download will abort if it retrieves >= 10KB of data to avoid downloading large files. |
---|
| 1659 | * We couldn't use CURLOPT_NOBODY (a HEAD request) because some services don't behave without a GET request (ahem, BBC). |
---|
| 1660 | * This function may not be very portable, if the server doesn't support CURLOPT_PROGRESSFUNCTION. |
---|
[520] | 1661 | * |
---|
| 1662 | * @access public |
---|
[743] | 1663 | * @param string $url URL to a file. |
---|
| 1664 | * @param int $timeout The maximum number of seconds to allow the HTTP query to execute. |
---|
| 1665 | * @return bool True if the resource exists, false otherwise. |
---|
[520] | 1666 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
[606] | 1667 | * @version 2.0 |
---|
[520] | 1668 | * @since 02 May 2015 15:10:09 |
---|
| 1669 | */ |
---|
[735] | 1670 | function httpExists($url, $timeout=5) |
---|
[520] | 1671 | { |
---|
| 1672 | $ch = curl_init($url); |
---|
[735] | 1673 | curl_setopt($ch, CURLOPT_TIMEOUT, $timeout); |
---|
[679] | 1674 | curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); |
---|
[520] | 1675 | curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); |
---|
[679] | 1676 | curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); |
---|
[606] | 1677 | curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36"); |
---|
[672] | 1678 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // Don't pass through data to the browser. |
---|
[606] | 1679 | curl_setopt($ch, CURLOPT_BUFFERSIZE, 128); // Frequent progress function calls. |
---|
| 1680 | curl_setopt($ch, CURLOPT_NOPROGRESS, false); // Required to use CURLOPT_PROGRESSFUNCTION. |
---|
[607] | 1681 | // Function arguments for CURLOPT_PROGRESSFUNCTION changed with php 5.5.0. |
---|
| 1682 | if (version_compare(PHP_VERSION, '5.5.0', '>=')) { |
---|
| 1683 | curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, function($ch, $dltot, $dlcur, $ultot, $ulcur){ |
---|
| 1684 | // Return a non-zero value to abort the transfer. In which case, the transfer will set a CURLE_ABORTED_BY_CALLBACK error |
---|
| 1685 | // 10KB should be enough to catch a few 302 redirect headers and get to the actual content. |
---|
| 1686 | return ($dlcur > 10*1024) ? 1 : 0; |
---|
| 1687 | }); |
---|
| 1688 | } else { |
---|
| 1689 | curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, function($dltot, $dlcur, $ultot, $ulcur){ |
---|
| 1690 | // Return a non-zero value to abort the transfer. In which case, the transfer will set a CURLE_ABORTED_BY_CALLBACK error |
---|
| 1691 | // 10KB should be enough to catch a few 302 redirect headers and get to the actual content. |
---|
| 1692 | return ($dlcur > 10*1024) ? 1 : 0; |
---|
| 1693 | }); |
---|
| 1694 | } |
---|
[520] | 1695 | curl_exec($ch); |
---|
[591] | 1696 | $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); |
---|
| 1697 | return preg_match('/^[23]\d\d$/', $http_code); |
---|
[520] | 1698 | } |
---|
[704] | 1699 | |
---|
| 1700 | /* |
---|
[735] | 1701 | * Get a HTTP response header. |
---|
| 1702 | * |
---|
| 1703 | * @access public |
---|
| 1704 | * @param string $url URL to hit. |
---|
| 1705 | * @param string $key Name of the header to return. |
---|
| 1706 | * @param array $valid_response_codes Array of acceptable HTTP return codes. |
---|
| 1707 | * @return string Value of the http header. |
---|
| 1708 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 1709 | * @since 28 Oct 2020 20:00:36 |
---|
| 1710 | */ |
---|
| 1711 | function getHttpHeader($url, $key, Array $valid_response_codes=[200]) |
---|
| 1712 | { |
---|
| 1713 | $headers = @get_headers($url, 1); |
---|
| 1714 | |
---|
| 1715 | if ($headers && preg_match(sprintf('/\b(%s)\b/', join('|', $valid_response_codes)), $headers[0])) { |
---|
| 1716 | $headers = array_change_key_case($headers, CASE_LOWER); |
---|
| 1717 | $key = strtolower($key); |
---|
| 1718 | if (isset($headers[$key])) { |
---|
| 1719 | return $headers[$key]; |
---|
| 1720 | } |
---|
| 1721 | } |
---|
| 1722 | |
---|
| 1723 | return false; |
---|
| 1724 | } |
---|
| 1725 | |
---|
| 1726 | /* |
---|
[704] | 1727 | * Load JSON data from a file and return it as an array (as specified by the json_decode options passed below.) |
---|
| 1728 | * |
---|
| 1729 | * @access public |
---|
| 1730 | * @param string $filename Name of the file to load. Just exist in the include path. |
---|
| 1731 | * @param bool $assoc When TRUE, returned objects will be converted into associative arrays. |
---|
| 1732 | * @param int $depth Recursion depth. |
---|
| 1733 | * @param const $options Bitmask of JSON_BIGINT_AS_STRING, JSON_INVALID_UTF8_IGNORE, JSON_INVALID_UTF8_SUBSTITUTE, JSON_OBJECT_AS_ARRAY, JSON_THROW_ON_ERROR. |
---|
| 1734 | * @return array Array of data from the file, or null if there was a problem. |
---|
| 1735 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 1736 | * @since 09 Oct 2019 21:32:47 |
---|
| 1737 | */ |
---|
| 1738 | function jsonDecodeFile($filename, $assoc=true, $depth=512, $options=0) |
---|
| 1739 | { |
---|
| 1740 | $app =& App::getInstance(); |
---|
| 1741 | |
---|
[746] | 1742 | if (false === ($resolved_filename = stream_resolve_include_path($filename))) { |
---|
[705] | 1743 | $app->logMsg(sprintf('JSON file "%s" not found in path "%s"', $filename, get_include_path()), LOG_ERR, __FILE__, __LINE__); |
---|
[704] | 1744 | return null; |
---|
| 1745 | } |
---|
| 1746 | |
---|
| 1747 | if (!is_readable($resolved_filename)) { |
---|
| 1748 | $app->logMsg(sprintf('JSON file is unreadable: %s', $resolved_filename), LOG_ERR, __FILE__, __LINE__); |
---|
| 1749 | return null; |
---|
| 1750 | } |
---|
| 1751 | |
---|
[746] | 1752 | if (null === ($data = json_decode(file_get_contents($resolved_filename), $assoc, $depth, $options))) { |
---|
[704] | 1753 | $app->logMsg(sprintf('JSON is unparsable: %s', $resolved_filename), LOG_ERR, __FILE__, __LINE__); |
---|
| 1754 | return null; |
---|
| 1755 | } |
---|
| 1756 | |
---|
| 1757 | return $data; |
---|
[706] | 1758 | } |
---|
| 1759 | |
---|
| 1760 | /* |
---|
| 1761 | * Get IP address status from IP Intelligence. https://getipintel.net/free-proxy-vpn-tor-detection-api/#expected_output |
---|
| 1762 | * |
---|
| 1763 | * @access public |
---|
| 1764 | * @param string $ip IP address to check. |
---|
| 1765 | * @param float $threshold Return true if the IP score is above this threshold (0-1). |
---|
| 1766 | * @param string $email Requester email address. |
---|
[707] | 1767 | * @return boolean True if the IP address appears to be a robot, proxy, or VPN. |
---|
| 1768 | * False if the IP address is a residential or business IP address, or the API failed to return a valid response. |
---|
[706] | 1769 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 1770 | * @since 26 Oct 2019 15:39:17 |
---|
| 1771 | */ |
---|
| 1772 | function IPIntelligenceBadIP($ip, $threshold=0.95, $email='hello@strangecode.com') |
---|
| 1773 | { |
---|
| 1774 | $app =& App::getInstance(); |
---|
| 1775 | |
---|
| 1776 | $ch = curl_init(sprintf('http://check.getipintel.net/check.php?ip=%s&contact=%s', urlencode($ip), urlencode($email))); |
---|
| 1777 | curl_setopt($ch, CURLOPT_TIMEOUT, 2); |
---|
| 1778 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
---|
| 1779 | $response = curl_exec($ch); |
---|
| 1780 | $errorno = curl_errno($ch); |
---|
| 1781 | $error = curl_error($ch); |
---|
| 1782 | $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); |
---|
| 1783 | curl_close($ch); |
---|
| 1784 | |
---|
| 1785 | if ($errorno == CURLE_OPERATION_TIMEOUTED) { |
---|
| 1786 | $http_code = 408; |
---|
| 1787 | } |
---|
| 1788 | |
---|
| 1789 | switch ($http_code) { |
---|
| 1790 | case 200: |
---|
| 1791 | case 400: |
---|
| 1792 | // Check response value, below. |
---|
| 1793 | break; |
---|
| 1794 | |
---|
| 1795 | case 408: |
---|
| 1796 | $app->logMsg(sprintf('IP Intelligence timeout', null), LOG_WARNING, __FILE__, __LINE__); |
---|
| 1797 | return false; |
---|
| 1798 | case 429: |
---|
| 1799 | $app->logMsg(sprintf('IP Intelligence number of allowed queries exceeded (rate limit 15 requests/minute)', null), LOG_WARNING, __FILE__, __LINE__); |
---|
| 1800 | return false; |
---|
| 1801 | default: |
---|
| 1802 | $app->logMsg(sprintf('IP Intelligence unexpected response (%s): %s: %s', $http_code, $error, $response), LOG_ERR, __FILE__, __LINE__); |
---|
| 1803 | return false; |
---|
| 1804 | } |
---|
| 1805 | |
---|
| 1806 | switch ($response) { |
---|
| 1807 | case -1: |
---|
| 1808 | $app->logMsg('IP Intelligence: Invalid no input', LOG_WARNING, __FILE__, __LINE__); |
---|
| 1809 | return false; |
---|
| 1810 | case -2: |
---|
| 1811 | $app->logMsg('IP Intelligence: Invalid IP address', LOG_WARNING, __FILE__, __LINE__); |
---|
| 1812 | return false; |
---|
| 1813 | case -3: |
---|
| 1814 | $app->logMsg('IP Intelligence: Unroutable or private address', LOG_WARNING, __FILE__, __LINE__); |
---|
| 1815 | return false; |
---|
| 1816 | case -4: |
---|
| 1817 | $app->logMsg('IP Intelligence: Unable to reach database', LOG_WARNING, __FILE__, __LINE__); |
---|
| 1818 | return false; |
---|
| 1819 | case -5: |
---|
[746] | 1820 | $app->logMsg('IP Intelligence: Banned: exceeded query limits, no permission, or invalid email address', LOG_WARNING, __FILE__, __LINE__); |
---|
[706] | 1821 | return false; |
---|
| 1822 | case -6: |
---|
| 1823 | $app->logMsg('IP Intelligence: Invalid contact information', LOG_WARNING, __FILE__, __LINE__); |
---|
| 1824 | return false; |
---|
| 1825 | default: |
---|
[746] | 1826 | if (!is_numeric($response) || $response < 0) { |
---|
| 1827 | $app->logMsg(sprintf('IP Intelligence: Unknown status for IP (%s): %s', $response, $ip), LOG_NOTICE, __FILE__, __LINE__); |
---|
| 1828 | return false; |
---|
| 1829 | } |
---|
| 1830 | if ($response >= $threshold) { |
---|
[706] | 1831 | $app->logMsg(sprintf('IP Intelligence: Bad IP (%s): %s', $response, $ip), LOG_NOTICE, __FILE__, __LINE__); |
---|
| 1832 | return true; |
---|
| 1833 | } |
---|
| 1834 | $app->logMsg(sprintf('IP Intelligence: Good IP (%s): %s', $response, $ip), LOG_NOTICE, __FILE__, __LINE__); |
---|
| 1835 | return false; |
---|
| 1836 | } |
---|
[741] | 1837 | } |
---|
| 1838 | |
---|
| 1839 | /* |
---|
| 1840 | * Test if a string is valid json. |
---|
| 1841 | * https://stackoverflow.com/questions/6041741/fastest-way-to-check-if-a-string-is-json-in-php |
---|
| 1842 | * |
---|
| 1843 | * @access public |
---|
| 1844 | * @param string $str The string to test. |
---|
| 1845 | * @return boolean True if the string is valid json. |
---|
| 1846 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 1847 | * @since 06 Dec 2020 18:41:51 |
---|
| 1848 | */ |
---|
| 1849 | function isJSON($str) |
---|
| 1850 | { |
---|
| 1851 | json_decode($str); |
---|
| 1852 | return (json_last_error() === JSON_ERROR_NONE); |
---|
[704] | 1853 | } |
---|