1 | <?php |
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2 | /** |
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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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5 | * Copyright 2001-2012 Strangecode, LLC |
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6 | * |
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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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13 | * |
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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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18 | * |
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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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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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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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33 | * @param bool $var_dump Use var_dump instead of print_r. |
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34 | * @param string $file Value of __FILE__. |
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35 | * @param string $line Value of __LINE__ |
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36 | */ |
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37 | function dump($var, $display=false, $var_dump=false, $file='', $line='') |
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38 | { |
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39 | $app =& App::getInstance(); |
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40 | |
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41 | if ($app->cli) { |
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42 | echo "DUMP FROM: $file $line\n"; |
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43 | } else { |
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44 | echo $display ? "\n<br />DUMP <strong>$file $line</strong><br /><pre>\n" : "\n<!-- DUMP $file $line\n"; |
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45 | } |
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46 | if ($var_dump) { |
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47 | var_dump($var); |
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48 | } else { |
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49 | // Print human-readable descriptions of invisible types. |
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50 | if (null === $var) { |
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51 | echo '(null)'; |
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52 | } else if (true === $var) { |
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53 | echo '(bool: true)'; |
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54 | } else if (false === $var) { |
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55 | echo '(bool: false)'; |
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56 | } else if (is_scalar($var) && '' === $var) { |
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57 | echo '(empty string)'; |
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58 | } else if (is_scalar($var) && preg_match('/^\s+$/', $var)) { |
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59 | echo '(only white space)'; |
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60 | } else { |
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61 | print_r($var); |
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62 | } |
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63 | } |
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64 | if ($app->cli) { |
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65 | echo "\n"; |
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66 | } else { |
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67 | echo $display ? "\n</pre><br />\n" : "\n-->\n"; |
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68 | } |
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69 | } |
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70 | |
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71 | /* |
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72 | * Log a PHP variable to javascript console. Relies on getDump(), below. |
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73 | * |
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74 | * @access public |
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75 | * @param mixed $var The variable to dump. |
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76 | * @param string $prefix A short note to print before the output to make identifying output easier. |
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77 | * @param string $file The value of __FILE__. |
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78 | * @param string $line The value of __LINE__. |
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79 | * @return null |
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80 | * @author Quinn Comendant <quinn@strangecode.com> |
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81 | */ |
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82 | function jsDump($var, $prefix='jsDump', $file='-', $line='-') |
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83 | { |
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84 | if (!empty($var)) { |
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85 | ?> |
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86 | <script type="text/javascript"> |
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87 | /* <![CDATA[ */ |
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88 | console.log('<?php printf('%s: %s (on line %s of %s)', $prefix, str_replace("'", "\\'", getDump($var, true)), $line, $file); ?>'); |
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89 | /* ]]> */ |
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90 | </script> |
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91 | <?php |
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92 | } |
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93 | } |
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94 | |
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95 | /* |
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96 | * Return a string version of any variable, optionally serialized on one line. |
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97 | * |
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98 | * @access public |
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99 | * @param mixed $var The variable to dump. |
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100 | * @param bool $serialize If true, remove line-endings. Useful for logging variables. |
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101 | * @return string The dumped variable. |
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102 | * @author Quinn Comendant <quinn@strangecode.com> |
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103 | */ |
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104 | function getDump($var, $serialize=false) |
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105 | { |
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106 | ob_start(); |
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107 | print_r($var); |
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108 | $d = ob_get_contents(); |
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109 | ob_end_clean(); |
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110 | return $serialize ? preg_replace('/\s+/m', ' ', $d) : $d; |
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111 | } |
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112 | |
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113 | /** |
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114 | * Return dump as cleaned text. Useful for dumping data into emails. |
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115 | * |
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116 | * @param array $var Variable to dump. |
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117 | * @param strong $indent A string to prepend indented lines (tab for example). |
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118 | * @return string Dump of var. |
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119 | */ |
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120 | function fancyDump($var, $indent='') |
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121 | { |
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122 | $output = ''; |
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123 | if (is_array($var)) { |
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124 | foreach ($var as $k=>$v) { |
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125 | $k = ucfirst(mb_strtolower(str_replace(array('_', ' '), ' ', $k))); |
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126 | if (is_array($v)) { |
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127 | $output .= sprintf("\n%s%s: %s\n", $indent, $k, fancyDump($v, $indent . $indent)); |
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128 | } else { |
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129 | $output .= sprintf("%s%s: %s\n", $indent, $k, $v); |
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130 | } |
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131 | } |
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132 | } else { |
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133 | $output .= sprintf("%s%s\n", $indent, $var); |
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134 | } |
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135 | return $output; |
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136 | } |
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137 | |
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138 | /** |
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139 | * @param string|mixed $value A string to UTF8-encode. |
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140 | * |
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141 | * @returns string|mixed The UTF8-encoded string, or the object passed in if |
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142 | * it wasn't a string. |
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143 | */ |
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144 | function conditionalUTF8Encode($value) |
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145 | { |
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146 | if (is_string($value) && mb_detect_encoding($value, 'UTF-8', true) != 'UTF-8') { |
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147 | return utf8_encode($value); |
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148 | } else { |
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149 | return $value; |
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150 | } |
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151 | } |
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152 | |
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153 | |
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154 | /** |
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155 | * Returns text with appropriate html translations (a smart wrapper for htmlspecialchars()). |
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156 | * |
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157 | * @param string $text Text to clean. |
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158 | * @param bool $preserve_html If set to true, oTxt will not translate <, >, ", or ' |
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159 | * characters into HTML entities. This allows HTML to pass through undisturbed. |
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160 | * @return string HTML-safe text. |
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161 | */ |
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162 | function oTxt($text, $preserve_html=false) |
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163 | { |
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164 | $app =& App::getInstance(); |
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165 | |
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166 | $search = array(); |
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167 | $replace = array(); |
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168 | |
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169 | // Make converted ampersand entities into normal ampersands (they will be done manually later) to retain HTML entities. |
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170 | $search['retain_ampersand'] = '/&/'; |
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171 | $replace['retain_ampersand'] = '&'; |
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172 | |
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173 | if ($preserve_html) { |
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174 | // Convert characters that must remain non-entities for displaying HTML. |
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175 | $search['retain_left_angle'] = '/</'; |
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176 | $replace['retain_left_angle'] = '<'; |
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177 | |
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178 | $search['retain_right_angle'] = '/>/'; |
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179 | $replace['retain_right_angle'] = '>'; |
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180 | |
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181 | $search['retain_single_quote'] = '/'/'; |
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182 | $replace['retain_single_quote'] = "'"; |
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183 | |
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184 | $search['retain_double_quote'] = '/"/'; |
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185 | $replace['retain_double_quote'] = '"'; |
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186 | } |
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187 | |
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188 | // & becomes &. Exclude any occurrence where the & is followed by a alphanum or unicode character. |
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189 | $search['ampersand'] = '/&(?![\w\d#]{1,10};)/'; |
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190 | $replace['ampersand'] = '&'; |
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191 | |
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192 | return preg_replace($search, $replace, htmlspecialchars($text, ENT_QUOTES, $app->getParam('character_set'))); |
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193 | } |
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194 | |
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195 | /** |
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196 | * Returns text with stylistic modifications. Warning: this will break some HTML attributes! |
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197 | * TODO: Allow a string such as this to be passed: <a href="javascript:openPopup('/foo/bar.php')">Click here</a> |
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198 | * |
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199 | * @param string $text Text to clean. |
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200 | * @return string Cleaned text. |
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201 | */ |
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202 | function fancyTxt($text) |
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203 | { |
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204 | $search = array(); |
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205 | $replace = array(); |
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206 | |
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207 | // "double quoted text" becomes “double quoted text” |
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208 | $search['double_quotes'] = '/(^|[^\w=])(?:"|"|"|"|“)([^"]+?)(?:"|"|"|"|”)([^\w]|$)/ms'; // " is the same as " and " and " |
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209 | $replace['double_quotes'] = '$1“$2”$3'; |
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210 | |
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211 | // text's apostrophes become text’s apostrophes |
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212 | $search['apostrophe'] = '/(\w)(?:\'|'|')(\w)/ms'; |
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213 | $replace['apostrophe'] = '$1’$2'; |
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214 | |
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215 | // 'single quoted text' becomes ‘single quoted text’ |
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216 | $search['single_quotes'] = '/(^|[^\w=])(?:\'|'|‘)([^\']+?)(?:\'|'|’)([^\w]|$)/ms'; |
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217 | $replace['single_quotes'] = '$1‘$2’$3'; |
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218 | |
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219 | // plural posessives' apostrophes become posessives’ |
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220 | $search['apostrophes'] = '/(s)(?:\'|'|')(\s)/ms'; |
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221 | $replace['apostrophes'] = '$1’$2'; |
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222 | |
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223 | // em--dashes become em—dashes |
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224 | $search['em_dash'] = '/(\s*[^!<-])--([^>-]\s*)/'; |
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225 | $replace['em_dash'] = '$1—$2'; |
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226 | |
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227 | return preg_replace($search, $replace, $text); |
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228 | } |
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229 | |
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230 | /* |
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231 | * Finds all URLs in text and hyperlinks them. |
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232 | * |
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233 | * @access public |
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234 | * @param string $text Text to search for URLs. |
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235 | * @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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236 | * @param mixed $length Number of characters to truncate URL, or NULL to disable truncating. |
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237 | * @param string $delim Delimiter to append, indicate truncation. |
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238 | * @return string Same input text, but URLs hyperlinked. |
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239 | * @author Quinn Comendant <quinn@strangecode.com> |
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240 | * @version 2.0 |
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241 | * @since 22 Mar 2015 23:29:04 |
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242 | */ |
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243 | function hyperlinkTxt($text, $strict=false, $length=null, $delim='âŠ') |
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244 | { |
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245 | // A list of schemes we allow at the beginning of a URL. |
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246 | $schemes = 'mailto:|tel:|skype:|callto:|facetime:|bitcoin:|geo:|magnet:\?|sip:|sms:|xmpp:|view-source:(?:https?://)?|[\w-]{2,}://'; |
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247 | |
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248 | // Capture the full URL into the first match and only the first X characters into the second match. |
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249 | // This will match URLs not preceeded by " ' or = (URLs inside an attribute) or ` (Markdown quoted) or double-scheme (http://http://www.asdf.com) |
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250 | // Valid URL characters: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~:/?#[]@!$&'()*+,;= |
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251 | $regex = '@ |
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252 | \b # Start with a word-boundary. |
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253 | (?<!"|\'|=|>|`|[\w-]{2}://) # Negative look-behind to exclude URLs already in <a> tag, Markdown quoted, or double SCHEME:// |
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254 | ( # Begin match 1 |
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255 | ( # Begin match 2 |
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256 | (?:%s) # URL starts with known scheme or www. if strict = false |
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257 | [^\s/$.?#]+ # Any domain-valid characters |
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258 | [^\s"`<>]{1,%s} # Match 2 is limited to a maximum of LENGTH valid URL characters |
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259 | ) |
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260 | [^\s"`<>]* # Match 1 continues with any further valid URL characters |
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261 | ([^\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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262 | ) |
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263 | @Suxi |
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264 | '; |
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265 | $regex = sprintf($regex, |
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266 | ($strict ? $schemes : $schemes . '|www\.'), // Strict=false adds "www." to the list of allowed start-of-URL. |
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267 | ($length ? $length : ''), |
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268 | ($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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269 | ); |
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270 | |
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271 | // Use a callback function to decide when to append the delim. |
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272 | // Also encode special chars with oTxt(). |
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273 | return preg_replace_callback($regex, function ($m) use ($length, $delim) { |
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274 | $url = $m[1]; |
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275 | $truncated_url = $m[2] . $m[3]; |
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276 | $absolute_url = preg_replace('!^www\.!', 'http://www.', $url); |
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277 | if (is_null($length) || $url == $truncated_url) { |
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278 | // If not truncating, or URL was not truncated. |
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279 | // Remove http schemas, and any single trailing / to make the display URL. |
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280 | $display_url = preg_replace(['!^https?://!', '!^([^/]+)/$!'], ['', '$1'], $url); |
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281 | return sprintf('<a href="%s">%s</a>', oTxt($absolute_url), $display_url); |
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282 | } else { |
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283 | // Truncated URL. |
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284 | // Remove http schemas, and any single trailing / to make the display URL. |
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285 | $display_url = preg_replace(['!^https?://!', '!^([^/]+)/$!'], ['', '$1'], trim($truncated_url)); |
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286 | return sprintf('<a href="%s">%s%s</a>', oTxt($absolute_url), $display_url, $delim); |
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287 | } |
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288 | }, $text); |
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289 | } |
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290 | |
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291 | /** |
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292 | * Applies a class to search terms to highlight them ala google results. |
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293 | * |
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294 | * @param string $text Input text to search. |
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295 | * @param string $search String of word(s) that will be highlighted. |
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296 | * @param string $class CSS class to apply. |
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297 | * @return string Text with searched words wrapped in <span>. |
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298 | */ |
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299 | function highlightWords($text, $search, $class='sc-highlightwords') |
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300 | { |
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301 | $words = preg_split('/[^\w]/', $search, -1, PREG_SPLIT_NO_EMPTY); |
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302 | |
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303 | $search = array(); |
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304 | $replace = array(); |
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305 | |
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306 | foreach ($words as $w) { |
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307 | if ('' != trim($w)) { |
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308 | $search[] = '/\b(' . preg_quote($w) . ')\b/i'; |
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309 | $replace[] = '<span class="' . $class . '">$1</span>'; |
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310 | } |
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311 | } |
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312 | |
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313 | return empty($replace) ? $text : preg_replace($search, $replace, $text); |
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314 | } |
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315 | |
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316 | /** |
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317 | * Generates a hexadecimal html color based on provided word. |
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318 | * |
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319 | * @access public |
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320 | * @param string $text A string for which to convert to color. |
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321 | * @return string A hexadecimal html color. |
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322 | */ |
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323 | function getTextColor($text, $method=1, $n=0.87) |
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324 | { |
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325 | $hash = md5($text); |
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326 | $rgb = array( |
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327 | mb_substr($hash, 0, 1), |
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328 | mb_substr($hash, 1, 1), |
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329 | mb_substr($hash, 2, 1), |
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330 | mb_substr($hash, 3, 1), |
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331 | mb_substr($hash, 4, 1), |
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332 | mb_substr($hash, 5, 1), |
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333 | ); |
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334 | |
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335 | switch ($method) { |
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336 | case 1 : |
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337 | default : |
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338 | // Reduce all hex values slightly to avoid all white. |
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339 | array_walk($rgb, create_function('&$v', "\$v = dechex(round(hexdec(\$v) * $n));")); |
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340 | break; |
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341 | case 2 : |
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342 | foreach ($rgb as $i => $v) { |
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343 | if (hexdec($v) > hexdec('c')) { |
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344 | $rgb[$i] = dechex(hexdec('f') - hexdec($v)); |
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345 | } |
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346 | } |
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347 | break; |
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348 | } |
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349 | |
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350 | return join('', $rgb); |
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351 | } |
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352 | |
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353 | /** |
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354 | * Encodes a string into unicode values 128-255. |
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355 | * Useful for hiding an email address from spambots. |
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356 | * |
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357 | * @access public |
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358 | * @param string $text A line of text to encode. |
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359 | * @return string Encoded text. |
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360 | */ |
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361 | function encodeAscii($text) |
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362 | { |
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363 | $output = ''; |
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364 | $num = mb_strlen($text); |
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365 | for ($i=0; $i<$num; $i++) { |
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366 | $output .= sprintf('&#%03s', ord($text{$i})); |
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367 | } |
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368 | return $output; |
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369 | } |
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370 | |
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371 | /** |
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372 | * Encodes an email into a "user at domain dot com" format. |
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373 | * |
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374 | * @access public |
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375 | * @param string $email An email to encode. |
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376 | * @param string $at Replaces the @. |
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377 | * @param string $dot Replaces the .. |
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378 | * @return string Encoded email. |
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379 | */ |
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380 | function encodeEmail($email, $at=' at ', $dot=' dot ') |
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381 | { |
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382 | $search = array('/@/', '/\./'); |
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383 | $replace = array($at, $dot); |
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384 | return preg_replace($search, $replace, $email); |
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385 | } |
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386 | |
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387 | /** |
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388 | * Truncates "a really long string" into a string of specified length |
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389 | * at the beginning: "âŠlong string" |
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390 | * at the middle: "a reaâŠstring" |
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391 | * or at the end: "a reallyâŠ". |
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392 | * |
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393 | * The regular expressions below first match and replace the string to the specified length and position, |
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394 | * and secondly they remove any whitespace from around the delimiter (to avoid "this ⊠" from happening). |
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395 | * |
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396 | * @access public |
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397 | * @param string $str Input string |
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398 | * @param int $len Maximum string length. |
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399 | * @param string $where Where to cut the string. One of: 'start', 'middle', or 'end'. |
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400 | * @return string Truncated output string. |
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401 | * @author Quinn Comendant <quinn@strangecode.com> |
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402 | * @since 29 Mar 2006 13:48:49 |
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403 | */ |
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404 | function truncate($str, $len=50, $where='end', $delim='âŠ') |
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405 | { |
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406 | $dlen = mb_strlen($delim); |
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407 | if ($len <= $dlen || mb_strlen($str) <= $dlen) { |
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408 | return substr($str, 0, $len); |
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409 | } |
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410 | $part1 = floor(($len - $dlen) / 2); |
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411 | $part2 = ceil(($len - $dlen) / 2); |
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412 | |
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413 | if ($len > ini_get('pcre.backtrack_limit')) { |
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414 | $app =& App::getInstance(); |
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415 | $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__); |
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416 | ini_set('pcre.backtrack_limit', $len); |
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417 | } |
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418 | |
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419 | switch ($where) { |
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420 | case 'start' : |
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421 | return preg_replace(array(sprintf('/^.{%s,}(.{%s})$/su', $dlen + 1, $part1 + $part2), sprintf('/\s*%s{%s,}\s*/su', preg_quote($delim), $dlen)), array($delim . '$1', $delim), $str); |
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422 | |
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423 | case 'middle' : |
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424 | return preg_replace(array(sprintf('/^(.{%s}).{%s,}(.{%s})$/su', $part1, $dlen + 1, $part2), sprintf('/\s*%s{%s,}\s*/su', preg_quote($delim), $dlen)), array('$1' . $delim . '$2', $delim), $str); |
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425 | |
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426 | case 'end' : |
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427 | default : |
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428 | return preg_replace(array(sprintf('/^(.{%s}).{%s,}$/su', $part1 + $part2, $dlen + 1), sprintf('/\s*%s{%s,}\s*/su', preg_quote($delim), $dlen)), array('$1' . $delim, $delim), $str); |
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429 | } |
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430 | } |
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431 | |
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432 | /* |
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433 | * A substitution for the missing mb_ucfirst function. |
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434 | * |
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435 | * @access public |
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436 | * @param string $string The string |
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437 | * @return string String with upper-cased first character. |
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438 | * @author Quinn Comendant <quinn@strangecode.com> |
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439 | * @version 1.0 |
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440 | * @since 06 Dec 2008 17:04:01 |
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441 | */ |
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442 | if (!function_exists('mb_ucfirst')) { |
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443 | function mb_ucfirst($string) |
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444 | { |
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445 | return mb_strtoupper(mb_substr($string, 0, 1)) . mb_substr($string, 1, mb_strlen($string)); |
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446 | } |
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447 | } |
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448 | |
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449 | /* |
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450 | * A substitution for the missing mb_strtr function. |
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451 | * |
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452 | * @access public |
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453 | * @param string $string The string |
---|
454 | * @param string $from String of characters to translate from |
---|
455 | * @param string $to String of characters to translate to |
---|
456 | * @return string String with translated characters. |
---|
457 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
458 | * @version 1.0 |
---|
459 | * @since 20 Jan 2013 12:33:26 |
---|
460 | */ |
---|
461 | if (!function_exists('mb_strtr')) { |
---|
462 | function mb_strtr($string, $from, $to) |
---|
463 | { |
---|
464 | return str_replace(mb_split('.', $from), mb_split('.', $to), $string); |
---|
465 | } |
---|
466 | } |
---|
467 | |
---|
468 | /* |
---|
469 | * A substitution for the missing mb_str_pad function. |
---|
470 | * |
---|
471 | * @access public |
---|
472 | * @param string $input The string that receives padding. |
---|
473 | * @param string $pad_length Total length of resultant string. |
---|
474 | * @param string $pad_string The string to use for padding |
---|
475 | * @param string $pad_type Flags STR_PAD_RIGHT or STR_PAD_LEFT or STR_PAD_BOTH |
---|
476 | * @return string String with translated characters. |
---|
477 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
478 | * @version 1.0 |
---|
479 | * @since 20 Jan 2013 12:33:26 |
---|
480 | */ |
---|
481 | if (!function_exists('mb_str_pad')) { |
---|
482 | function mb_str_pad($input, $pad_length, $pad_string=' ', $pad_type=STR_PAD_RIGHT) { |
---|
483 | $diff = strlen($input) - mb_strlen($input); |
---|
484 | return str_pad($input, $pad_length + $diff, $pad_string, $pad_type); |
---|
485 | } |
---|
486 | } |
---|
487 | |
---|
488 | /* |
---|
489 | * Converts a string into a URL-safe slug, removing spaces and non word characters. |
---|
490 | * |
---|
491 | * @access public |
---|
492 | * @param string $str String to convert. |
---|
493 | * @return string URL-safe slug. |
---|
494 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
495 | * @version 1.0 |
---|
496 | * @since 18 Aug 2014 12:54:29 |
---|
497 | */ |
---|
498 | function URLSlug($str) |
---|
499 | { |
---|
500 | $slug = preg_replace(array('/\W+/u', '/^-+|-+$/'), array('-', ''), $str); |
---|
501 | $slug = strtolower($slug); |
---|
502 | return $slug; |
---|
503 | } |
---|
504 | |
---|
505 | /** |
---|
506 | * Return a human readable disk space measurement. Input value measured in bytes. |
---|
507 | * |
---|
508 | * @param int $size Size in bytes. |
---|
509 | * @param int $unit The maximum unit |
---|
510 | * @param int $format The return string format |
---|
511 | * @author Aidan Lister <aidan@php.net> |
---|
512 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
513 | * @version 1.2.0 |
---|
514 | */ |
---|
515 | function humanFileSize($size, $format='%01.2f %s', $max_unit=null, $multiplier=1024) |
---|
516 | { |
---|
517 | // Units |
---|
518 | $units = array('B', 'KB', 'MB', 'GB', 'TB'); |
---|
519 | $ii = count($units) - 1; |
---|
520 | |
---|
521 | // Max unit |
---|
522 | $max_unit = array_search((string) $max_unit, $units); |
---|
523 | if ($max_unit === null || $max_unit === false) { |
---|
524 | $max_unit = $ii; |
---|
525 | } |
---|
526 | |
---|
527 | // Loop |
---|
528 | $i = 0; |
---|
529 | while ($max_unit != $i && $size >= $multiplier && $i < $ii) { |
---|
530 | $size /= $multiplier; |
---|
531 | $i++; |
---|
532 | } |
---|
533 | |
---|
534 | return sprintf($format, $size, $units[$i]); |
---|
535 | } |
---|
536 | |
---|
537 | /* |
---|
538 | * Returns a human readable amount of time for the given amount of seconds. |
---|
539 | * |
---|
540 | * 45 seconds |
---|
541 | * 12 minutes |
---|
542 | * 3.5 hours |
---|
543 | * 2 days |
---|
544 | * 1 week |
---|
545 | * 4 months |
---|
546 | * |
---|
547 | * Months are calculated using the real number of days in a year: 365.2422 / 12. |
---|
548 | * |
---|
549 | * @access public |
---|
550 | * @param int $seconds Seconds of time. |
---|
551 | * @param string $max_unit Key value from the $units array. |
---|
552 | * @param string $format Sprintf formatting string. |
---|
553 | * @return string Value of units elapsed. |
---|
554 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
555 | * @version 1.0 |
---|
556 | * @since 23 Jun 2006 12:15:19 |
---|
557 | */ |
---|
558 | function humanTime($seconds, $max_unit=null, $format='%01.1f') |
---|
559 | { |
---|
560 | // Units: array of seconds in the unit, singular and plural unit names. |
---|
561 | $units = array( |
---|
562 | 'second' => array(1, _("second"), _("seconds")), |
---|
563 | 'minute' => array(60, _("minute"), _("minutes")), |
---|
564 | 'hour' => array(3600, _("hour"), _("hours")), |
---|
565 | 'day' => array(86400, _("day"), _("days")), |
---|
566 | 'week' => array(604800, _("week"), _("weeks")), |
---|
567 | 'month' => array(2629743.84, _("month"), _("months")), |
---|
568 | 'year' => array(31556926.08, _("year"), _("years")), |
---|
569 | 'decade' => array(315569260.8, _("decade"), _("decades")), |
---|
570 | 'century' => array(3155692608, _("century"), _("centuries")), |
---|
571 | ); |
---|
572 | |
---|
573 | // Max unit to calculate. |
---|
574 | $max_unit = isset($units[$max_unit]) ? $max_unit : 'year'; |
---|
575 | |
---|
576 | $final_time = $seconds; |
---|
577 | $final_unit = 'second'; |
---|
578 | foreach ($units as $k => $v) { |
---|
579 | if ($seconds >= $v[0]) { |
---|
580 | $final_time = $seconds / $v[0]; |
---|
581 | $final_unit = $k; |
---|
582 | } |
---|
583 | if ($max_unit == $final_unit) { |
---|
584 | break; |
---|
585 | } |
---|
586 | } |
---|
587 | $final_time = sprintf($format, $final_time); |
---|
588 | return sprintf('%s %s', $final_time, (1 == $final_time ? $units[$final_unit][1] : $units[$final_unit][2])); |
---|
589 | } |
---|
590 | |
---|
591 | /** |
---|
592 | * Removes non-latin characters from file name, using htmlentities to convert known weirdos into regular squares. |
---|
593 | * |
---|
594 | * @access public |
---|
595 | * @param string $file_name A name of a file. |
---|
596 | * @return string The same name, but cleaned. |
---|
597 | */ |
---|
598 | function cleanFileName($file_name) |
---|
599 | { |
---|
600 | $app =& App::getInstance(); |
---|
601 | |
---|
602 | $file_name = preg_replace(array( |
---|
603 | '/&([a-z]{1,2})(?:acute|cedil|circ|grave|lig|orn|ring|slash|th|tilde|uml|caron);/ui', |
---|
604 | '/&(?:amp);/ui', |
---|
605 | '/[&;]+/u', |
---|
606 | '/[^a-zA-Z0-9()@._=+-]+/u', |
---|
607 | '/^_+|_+$/u' |
---|
608 | ), array( |
---|
609 | '$1', |
---|
610 | 'and', |
---|
611 | '', |
---|
612 | '_', |
---|
613 | '' |
---|
614 | ), htmlentities($file_name, ENT_NOQUOTES | ENT_IGNORE, $app->getParam('character_set'))); |
---|
615 | return mb_substr($file_name, 0, 250); |
---|
616 | } |
---|
617 | |
---|
618 | /** |
---|
619 | * Returns the extension of a file name, or an empty string if none exists. |
---|
620 | * |
---|
621 | * @access public |
---|
622 | * @param string $file_name A name of a file, with extension after a dot. |
---|
623 | * @return string The value found after the dot |
---|
624 | */ |
---|
625 | function getFilenameExtension($file_name) |
---|
626 | { |
---|
627 | preg_match('/.*?\.(\w+)$/i', trim($file_name), $ext); |
---|
628 | return isset($ext[1]) ? $ext[1] : ''; |
---|
629 | } |
---|
630 | |
---|
631 | /* |
---|
632 | * Convert a php.ini value (8M, 512K, etc), into integer value of bytes. |
---|
633 | * |
---|
634 | * @access public |
---|
635 | * @param string $val Value from php config, e.g., upload_max_filesize. |
---|
636 | * @return int Value converted to bytes as an integer. |
---|
637 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
638 | * @version 1.0 |
---|
639 | * @since 20 Aug 2014 14:32:41 |
---|
640 | */ |
---|
641 | function phpIniGetBytes($val) |
---|
642 | { |
---|
643 | $val = trim(ini_get($val)); |
---|
644 | if ($val != '') { |
---|
645 | $last = strtolower($val{strlen($val) - 1}); |
---|
646 | } else { |
---|
647 | $last = ''; |
---|
648 | } |
---|
649 | switch ($last) { |
---|
650 | // The 'G' modifier is available since PHP 5.1.0 |
---|
651 | case 'g': |
---|
652 | $val *= 1024; |
---|
653 | case 'm': |
---|
654 | $val *= 1024; |
---|
655 | case 'k': |
---|
656 | $val *= 1024; |
---|
657 | } |
---|
658 | |
---|
659 | return (int)$val; |
---|
660 | } |
---|
661 | |
---|
662 | /** |
---|
663 | * Tests the existence of a file anywhere in the include path. |
---|
664 | * Replaced by stream_resolve_include_path() in PHP 5 >= 5.3.2 |
---|
665 | * |
---|
666 | * @param string $file File in include path. |
---|
667 | * @return mixed False if file not found, the path of the file if it is found. |
---|
668 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
669 | * @since 03 Dec 2005 14:23:26 |
---|
670 | */ |
---|
671 | function fileExistsIncludePath($file) |
---|
672 | { |
---|
673 | $app =& App::getInstance(); |
---|
674 | |
---|
675 | foreach (explode(PATH_SEPARATOR, get_include_path()) as $path) { |
---|
676 | $fullpath = $path . DIRECTORY_SEPARATOR . $file; |
---|
677 | if (file_exists($fullpath)) { |
---|
678 | $app->logMsg(sprintf('Found file "%s" at path: %s', $file, $fullpath), LOG_DEBUG, __FILE__, __LINE__); |
---|
679 | return $fullpath; |
---|
680 | } else { |
---|
681 | $app->logMsg(sprintf('File "%s" not found in include_path: %s', $file, get_include_path()), LOG_DEBUG, __FILE__, __LINE__); |
---|
682 | return false; |
---|
683 | } |
---|
684 | } |
---|
685 | } |
---|
686 | |
---|
687 | /** |
---|
688 | * Returns stats of a file from the include path. |
---|
689 | * |
---|
690 | * @param string $file File in include path. |
---|
691 | * @param mixed $stat Which statistic to return (or null to return all). |
---|
692 | * @return mixed Value of requested key from fstat(), or false on error. |
---|
693 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
694 | * @since 03 Dec 2005 14:23:26 |
---|
695 | */ |
---|
696 | function statIncludePath($file, $stat=null) |
---|
697 | { |
---|
698 | // Open file pointer read-only using include path. |
---|
699 | if ($fp = fopen($file, 'r', true)) { |
---|
700 | // File opened successfully, get stats. |
---|
701 | $stats = fstat($fp); |
---|
702 | fclose($fp); |
---|
703 | // Return specified stats. |
---|
704 | return is_null($stat) ? $stats : $stats[$stat]; |
---|
705 | } else { |
---|
706 | return false; |
---|
707 | } |
---|
708 | } |
---|
709 | |
---|
710 | /* |
---|
711 | * Writes content to the specified file. This function emulates the functionality of file_put_contents from PHP 5. |
---|
712 | * It makes an exclusive lock on the file while writing. |
---|
713 | * |
---|
714 | * @access public |
---|
715 | * @param string $filename Path to file. |
---|
716 | * @param string $content Data to write into file. |
---|
717 | * @return bool Success or failure. |
---|
718 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
719 | * @since 11 Apr 2006 22:48:30 |
---|
720 | */ |
---|
721 | function filePutContents($filename, $content) |
---|
722 | { |
---|
723 | $app =& App::getInstance(); |
---|
724 | |
---|
725 | // Open file for writing and truncate to zero length. |
---|
726 | if ($fp = fopen($filename, 'w')) { |
---|
727 | if (flock($fp, LOCK_EX)) { |
---|
728 | if (!fwrite($fp, $content, mb_strlen($content))) { |
---|
729 | $app->logMsg(sprintf('Failed writing to file: %s', $filename), LOG_ERR, __FILE__, __LINE__); |
---|
730 | fclose($fp); |
---|
731 | return false; |
---|
732 | } |
---|
733 | flock($fp, LOCK_UN); |
---|
734 | } else { |
---|
735 | $app->logMsg(sprintf('Could not lock file for writing: %s', $filename), LOG_ERR, __FILE__, __LINE__); |
---|
736 | fclose($fp); |
---|
737 | return false; |
---|
738 | } |
---|
739 | fclose($fp); |
---|
740 | // Success! |
---|
741 | $app->logMsg(sprintf('Wrote to file: %s', $filename), LOG_DEBUG, __FILE__, __LINE__); |
---|
742 | return true; |
---|
743 | } else { |
---|
744 | $app->logMsg(sprintf('Could not open file for writing: %s', $filename), LOG_ERR, __FILE__, __LINE__); |
---|
745 | return false; |
---|
746 | } |
---|
747 | } |
---|
748 | |
---|
749 | /** |
---|
750 | * If $var is net set or null, set it to $default. Otherwise leave it alone. |
---|
751 | * Returns the final value of $var. Use to find a default value of one is not available. |
---|
752 | * |
---|
753 | * @param mixed $var The variable that is being set. |
---|
754 | * @param mixed $default What to set it to if $val is not currently set. |
---|
755 | * @return mixed The resulting value of $var. |
---|
756 | */ |
---|
757 | function setDefault(&$var, $default='') |
---|
758 | { |
---|
759 | if (!isset($var)) { |
---|
760 | $var = $default; |
---|
761 | } |
---|
762 | return $var; |
---|
763 | } |
---|
764 | |
---|
765 | /** |
---|
766 | * Like preg_quote() except for arrays, it takes an array of strings and puts |
---|
767 | * a backslash in front of every character that is part of the regular |
---|
768 | * expression syntax. |
---|
769 | * |
---|
770 | * @param array $array input array |
---|
771 | * @param array $delim optional character that will also be escaped. |
---|
772 | * @return array an array with the same values as $array1 but shuffled |
---|
773 | */ |
---|
774 | function pregQuoteArray($array, $delim='/') |
---|
775 | { |
---|
776 | if (!empty($array)) { |
---|
777 | if (is_array($array)) { |
---|
778 | foreach ($array as $key=>$val) { |
---|
779 | $quoted_array[$key] = preg_quote($val, $delim); |
---|
780 | } |
---|
781 | return $quoted_array; |
---|
782 | } else { |
---|
783 | return preg_quote($array, $delim); |
---|
784 | } |
---|
785 | } |
---|
786 | } |
---|
787 | |
---|
788 | /** |
---|
789 | * Converts a PHP Array into encoded URL arguments and return them as an array. |
---|
790 | * |
---|
791 | * @param mixed $data An array to transverse recursively, or a string |
---|
792 | * to use directly to create url arguments. |
---|
793 | * @param string $prefix The name of the first dimension of the array. |
---|
794 | * If not specified, the first keys of the array will be used. |
---|
795 | * @return array URL with array elements as URL key=value arguments. |
---|
796 | */ |
---|
797 | function urlEncodeArray($data, $prefix='', $_return=true) |
---|
798 | { |
---|
799 | // Data is stored in static variable. |
---|
800 | static $args = array(); |
---|
801 | |
---|
802 | if (is_array($data)) { |
---|
803 | foreach ($data as $key => $val) { |
---|
804 | // If the prefix is empty, use the $key as the name of the first dimension of the "array". |
---|
805 | // ...otherwise, append the key as a new dimension of the "array". |
---|
806 | $new_prefix = ('' == $prefix) ? urlencode($key) : $prefix . '[' . urlencode($key) . ']'; |
---|
807 | // Enter recursion. |
---|
808 | urlEncodeArray($val, $new_prefix, false); |
---|
809 | } |
---|
810 | } else { |
---|
811 | // We've come to the last dimension of the array, save the "array" and its value. |
---|
812 | $args[$prefix] = urlencode($data); |
---|
813 | } |
---|
814 | |
---|
815 | if ($_return) { |
---|
816 | // This is not a recursive execution. All recursion is complete. |
---|
817 | // Reset static var and return the result. |
---|
818 | $ret = $args; |
---|
819 | $args = array(); |
---|
820 | return is_array($ret) ? $ret : array(); |
---|
821 | } |
---|
822 | } |
---|
823 | |
---|
824 | /** |
---|
825 | * Converts a PHP Array into encoded URL arguments and return them in a string. |
---|
826 | * |
---|
827 | * Todo: probably update to use the built-in http_build_query(). |
---|
828 | * |
---|
829 | * @param mixed $data An array to transverse recursively, or a string |
---|
830 | * to use directly to create url arguments. |
---|
831 | * @param string $prefix The name of the first dimension of the array. |
---|
832 | * If not specified, the first keys of the array will be used. |
---|
833 | * @return string url A string ready to append to a url. |
---|
834 | */ |
---|
835 | function urlEncodeArrayToString($data, $prefix='') |
---|
836 | { |
---|
837 | |
---|
838 | $array_args = urlEncodeArray($data, $prefix); |
---|
839 | $url_args = ''; |
---|
840 | $delim = ''; |
---|
841 | foreach ($array_args as $key=>$val) { |
---|
842 | $url_args .= $delim . $key . '=' . $val; |
---|
843 | $delim = ini_get('arg_separator.output'); |
---|
844 | } |
---|
845 | return $url_args; |
---|
846 | } |
---|
847 | |
---|
848 | /** |
---|
849 | * Fills an array with the result from a multiple ereg search. |
---|
850 | * Courtesy of Bruno - rbronosky@mac.com - 10-May-2001 |
---|
851 | * |
---|
852 | * @param mixed $pattern regular expression needle |
---|
853 | * @param mixed $string haystack |
---|
854 | * @return array populated with each found result |
---|
855 | */ |
---|
856 | function eregAll($pattern, $string) |
---|
857 | { |
---|
858 | do { |
---|
859 | if (!mb_ereg($pattern, $string, $temp)) { |
---|
860 | continue; |
---|
861 | } |
---|
862 | $string = str_replace($temp[0], '', $string); |
---|
863 | $results[] = $temp; |
---|
864 | } while (mb_ereg($pattern, $string, $temp)); |
---|
865 | return $results; |
---|
866 | } |
---|
867 | |
---|
868 | /** |
---|
869 | * Prints the word "checked" if a variable is set, and optionally matches |
---|
870 | * the desired value, otherwise prints nothing, |
---|
871 | * used for printing the word "checked" in a checkbox form input. |
---|
872 | * |
---|
873 | * @param mixed $var the variable to compare |
---|
874 | * @param mixed $value optional, what to compare with if a specific value is required. |
---|
875 | */ |
---|
876 | function frmChecked($var, $value=null) |
---|
877 | { |
---|
878 | if (func_num_args() == 1 && $var) { |
---|
879 | // 'Checked' if var is true. |
---|
880 | echo ' checked="checked" '; |
---|
881 | } else if (func_num_args() == 2 && $var == $value) { |
---|
882 | // 'Checked' if var and value match. |
---|
883 | echo ' checked="checked" '; |
---|
884 | } else if (func_num_args() == 2 && is_array($var)) { |
---|
885 | // 'Checked' if the value is in the key or the value of an array. |
---|
886 | if (isset($var[$value])) { |
---|
887 | echo ' checked="checked" '; |
---|
888 | } else if (in_array($value, $var)) { |
---|
889 | echo ' checked="checked" '; |
---|
890 | } |
---|
891 | } |
---|
892 | } |
---|
893 | |
---|
894 | /** |
---|
895 | * prints the word "selected" if a variable is set, and optionally matches |
---|
896 | * the desired value, otherwise prints nothing, |
---|
897 | * otherwise prints nothing, used for printing the word "checked" in a |
---|
898 | * select form input |
---|
899 | * |
---|
900 | * @param mixed $var the variable to compare |
---|
901 | * @param mixed $value optional, what to compare with if a specific value is required. |
---|
902 | */ |
---|
903 | function frmSelected($var, $value=null) |
---|
904 | { |
---|
905 | if (func_num_args() == 1 && $var) { |
---|
906 | // 'selected' if var is true. |
---|
907 | echo ' selected="selected" '; |
---|
908 | } else if (func_num_args() == 2 && $var == $value) { |
---|
909 | // 'selected' if var and value match. |
---|
910 | echo ' selected="selected" '; |
---|
911 | } else if (func_num_args() == 2 && is_array($var)) { |
---|
912 | // 'selected' if the value is in the key or the value of an array. |
---|
913 | if (isset($var[$value])) { |
---|
914 | echo ' selected="selected" '; |
---|
915 | } else if (in_array($value, $var)) { |
---|
916 | echo ' selected="selected" '; |
---|
917 | } |
---|
918 | } |
---|
919 | } |
---|
920 | |
---|
921 | /** |
---|
922 | * Adds slashes to values of an array and converts the array to a comma |
---|
923 | * delimited list. If value provided is a string return the string |
---|
924 | * escaped. This is useful for putting values coming in from posted |
---|
925 | * checkboxes into a SET column of a database. |
---|
926 | * |
---|
927 | * |
---|
928 | * @param array $in Array to convert. |
---|
929 | * @return string Comma list of array values. |
---|
930 | */ |
---|
931 | function escapedList($in, $separator="', '") |
---|
932 | { |
---|
933 | require_once dirname(__FILE__) . '/DB.inc.php'; |
---|
934 | $db =& DB::getInstance(); |
---|
935 | |
---|
936 | if (is_array($in) && !empty($in)) { |
---|
937 | return join($separator, array_map(array($db, 'escapeString'), $in)); |
---|
938 | } else { |
---|
939 | return $db->escapeString($in); |
---|
940 | } |
---|
941 | } |
---|
942 | |
---|
943 | /** |
---|
944 | * Converts a human string date into a SQL-safe date. Dates nearing |
---|
945 | * infinity use the date 2038-01-01 so conversion to unix time format |
---|
946 | * remain within valid range. |
---|
947 | * |
---|
948 | * @param array $date String date to convert. |
---|
949 | * @param array $format Date format to pass to date(). Default produces MySQL datetime: YYYY-MM-DD hh:mm:ss |
---|
950 | * @return string SQL-safe date. |
---|
951 | */ |
---|
952 | function strToSQLDate($date, $format='Y-m-d H:i:s') |
---|
953 | { |
---|
954 | require_once dirname(__FILE__) . '/DB.inc.php'; |
---|
955 | $db =& DB::getInstance(); |
---|
956 | |
---|
957 | if ($db->isConnected() && mb_strpos($db->getParam('zero_date'), '-') !== false) { |
---|
958 | // Mysql version >= 5.7.4 stopped allowing a "zero" date of 0000-00-00. |
---|
959 | // https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html#sqlmode_no_zero_date |
---|
960 | $zero_date_parts = explode('-', $db->getParam('zero_date')); |
---|
961 | $zero_y = $zero_date_parts[0]; |
---|
962 | $zero_m = $zero_date_parts[1]; |
---|
963 | $zero_d = $zero_date_parts[2]; |
---|
964 | } else { |
---|
965 | $zero_y = '0000'; |
---|
966 | $zero_m = '00'; |
---|
967 | $zero_d = '00'; |
---|
968 | } |
---|
969 | // Translate the human string date into SQL-safe date format. |
---|
970 | if (empty($date) || mb_strpos($date, sprintf('%s-%s-%s', $zero_y, $zero_m, $zero_d)) !== false || strtotime($date) === -1 || strtotime($date) === false || strtotime($date) === null) { |
---|
971 | // Return a string of zero time, formatted the same as $format. |
---|
972 | return strtr($format, array( |
---|
973 | 'Y' => $zero_y, |
---|
974 | 'm' => $zero_m, |
---|
975 | 'd' => $zero_d, |
---|
976 | 'H' => '00', |
---|
977 | 'i' => '00', |
---|
978 | 's' => '00', |
---|
979 | )); |
---|
980 | } else { |
---|
981 | return date($format, strtotime($date)); |
---|
982 | } |
---|
983 | } |
---|
984 | |
---|
985 | /** |
---|
986 | * If magic_quotes_gpc is in use, run stripslashes() on $var. If $var is an |
---|
987 | * array, stripslashes is run on each value, recursively, and the stripped |
---|
988 | * array is returned. |
---|
989 | * |
---|
990 | * @param mixed $var The string or array to un-quote, if necessary. |
---|
991 | * @return mixed $var, minus any magic quotes. |
---|
992 | */ |
---|
993 | function dispelMagicQuotes($var, $always=false) |
---|
994 | { |
---|
995 | static $magic_quotes_gpc; |
---|
996 | |
---|
997 | if (!isset($magic_quotes_gpc)) { |
---|
998 | $magic_quotes_gpc = get_magic_quotes_gpc(); |
---|
999 | } |
---|
1000 | |
---|
1001 | if ($always || $magic_quotes_gpc) { |
---|
1002 | if (!is_array($var)) { |
---|
1003 | $var = stripslashes($var); |
---|
1004 | } else { |
---|
1005 | foreach ($var as $key=>$val) { |
---|
1006 | if (is_array($val)) { |
---|
1007 | $var[$key] = dispelMagicQuotes($val, $always); |
---|
1008 | } else { |
---|
1009 | $var[$key] = stripslashes($val); |
---|
1010 | } |
---|
1011 | } |
---|
1012 | } |
---|
1013 | } |
---|
1014 | return $var; |
---|
1015 | } |
---|
1016 | |
---|
1017 | /** |
---|
1018 | * Get a form variable from GET or POST data, stripped of magic |
---|
1019 | * quotes if necessary. |
---|
1020 | * |
---|
1021 | * @param string $var (optional) The name of the form variable to look for. |
---|
1022 | * @param string $default (optional) The value to return if the |
---|
1023 | * variable is not there. |
---|
1024 | * @return mixed A cleaned GET or POST if no $var specified. |
---|
1025 | * @return string A cleaned form $var if found, or $default. |
---|
1026 | */ |
---|
1027 | function getFormData($var=null, $default=null) |
---|
1028 | { |
---|
1029 | $app =& App::getInstance(); |
---|
1030 | |
---|
1031 | if ('POST' == getenv('REQUEST_METHOD') && is_null($var)) { |
---|
1032 | return dispelMagicQuotes($_POST, $app->getParam('always_dispel_magicquotes')); |
---|
1033 | } else if ('GET' == getenv('REQUEST_METHOD') && is_null($var)) { |
---|
1034 | return dispelMagicQuotes($_GET, $app->getParam('always_dispel_magicquotes')); |
---|
1035 | } |
---|
1036 | if (isset($_POST[$var])) { |
---|
1037 | return dispelMagicQuotes($_POST[$var], $app->getParam('always_dispel_magicquotes')); |
---|
1038 | } else if (isset($_GET[$var])) { |
---|
1039 | return dispelMagicQuotes($_GET[$var], $app->getParam('always_dispel_magicquotes')); |
---|
1040 | } else { |
---|
1041 | return $default; |
---|
1042 | } |
---|
1043 | } |
---|
1044 | |
---|
1045 | function getPost($var=null, $default=null) |
---|
1046 | { |
---|
1047 | $app =& App::getInstance(); |
---|
1048 | |
---|
1049 | if (is_null($var)) { |
---|
1050 | return dispelMagicQuotes($_POST, $app->getParam('always_dispel_magicquotes')); |
---|
1051 | } |
---|
1052 | if (isset($_POST[$var])) { |
---|
1053 | return dispelMagicQuotes($_POST[$var], $app->getParam('always_dispel_magicquotes')); |
---|
1054 | } else { |
---|
1055 | return $default; |
---|
1056 | } |
---|
1057 | } |
---|
1058 | |
---|
1059 | function getGet($var=null, $default=null) |
---|
1060 | { |
---|
1061 | $app =& App::getInstance(); |
---|
1062 | if (is_null($var)) { |
---|
1063 | return dispelMagicQuotes($_GET, $app->getParam('always_dispel_magicquotes')); |
---|
1064 | } |
---|
1065 | if (isset($_GET[$var])) { |
---|
1066 | return dispelMagicQuotes($_GET[$var], $app->getParam('always_dispel_magicquotes')); |
---|
1067 | } else { |
---|
1068 | return $default; |
---|
1069 | } |
---|
1070 | } |
---|
1071 | |
---|
1072 | /* |
---|
1073 | * Sets a $_GET or $_POST variable. |
---|
1074 | * |
---|
1075 | * @access public |
---|
1076 | * @param string $key The key of the request array to set. |
---|
1077 | * @param mixed $val The value to save in the request array. |
---|
1078 | * @return void |
---|
1079 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
1080 | * @version 1.0 |
---|
1081 | * @since 01 Nov 2009 12:25:29 |
---|
1082 | */ |
---|
1083 | function putFormData($key, $val) |
---|
1084 | { |
---|
1085 | switch (strtoupper(getenv('REQUEST_METHOD'))) { |
---|
1086 | case 'POST': |
---|
1087 | $_POST[$key] = $val; |
---|
1088 | break; |
---|
1089 | |
---|
1090 | case 'GET': |
---|
1091 | $_GET[$key] = $val; |
---|
1092 | break; |
---|
1093 | } |
---|
1094 | } |
---|
1095 | |
---|
1096 | /* |
---|
1097 | * Generates a base-65-encoded sha512 hash of $string truncated to $length. |
---|
1098 | * |
---|
1099 | * @access public |
---|
1100 | * @param string $string Input string to hash. |
---|
1101 | * @param int $length Length of output hash string. |
---|
1102 | * @return string String of hash. |
---|
1103 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
1104 | * @version 1.0 |
---|
1105 | * @since 03 Apr 2016 19:48:49 |
---|
1106 | */ |
---|
1107 | function hash64($string, $length=18) |
---|
1108 | { |
---|
1109 | return mb_substr(preg_replace('/[^\w]/', '', base64_encode(hash('sha512', $string, true))), 0, $length); |
---|
1110 | } |
---|
1111 | |
---|
1112 | /** |
---|
1113 | * Signs a value using md5 and a simple text key. In order for this |
---|
1114 | * function to be useful (i.e. secure) the salt must be kept secret, which |
---|
1115 | * means keeping it as safe as database credentials. Putting it into an |
---|
1116 | * environment variable set in httpd.conf is a good place. |
---|
1117 | * |
---|
1118 | * @access public |
---|
1119 | * @param string $val The string to sign. |
---|
1120 | * @param string $salt (Optional) A text key to use for computing the signature. |
---|
1121 | * @param string $length (Optional) The length of the added signature. Longer signatures are safer. Must match the length passed to verifySignature() for the signatures to match. |
---|
1122 | * @return string The original value with a signature appended. |
---|
1123 | */ |
---|
1124 | function addSignature($val, $salt=null, $length=18) |
---|
1125 | { |
---|
1126 | $app =& App::getInstance(); |
---|
1127 | |
---|
1128 | if ('' == trim($val)) { |
---|
1129 | $app->logMsg(sprintf('Cannot add signature to an empty string.', null), LOG_INFO, __FILE__, __LINE__); |
---|
1130 | return ''; |
---|
1131 | } |
---|
1132 | |
---|
1133 | if (!isset($salt)) { |
---|
1134 | $salt = $app->getParam('signing_key'); |
---|
1135 | } |
---|
1136 | |
---|
1137 | switch ($app->getParam('signing_method')) { |
---|
1138 | case 'sha512+base64': |
---|
1139 | return $val . '-' . mb_substr(preg_replace('/[^\w]/', '', base64_encode(hash('sha512', $val . $salt, true))), 0, $length); |
---|
1140 | |
---|
1141 | case 'md5': |
---|
1142 | default: |
---|
1143 | return $val . '-' . mb_strtolower(mb_substr(md5($salt . md5($val . $salt)), 0, $length)); |
---|
1144 | } |
---|
1145 | } |
---|
1146 | |
---|
1147 | /** |
---|
1148 | * Strips off the signature appended by addSignature(). |
---|
1149 | * |
---|
1150 | * @access public |
---|
1151 | * @param string $signed_val The string to sign. |
---|
1152 | * @return string The original value with a signature removed. |
---|
1153 | */ |
---|
1154 | function removeSignature($signed_val) |
---|
1155 | { |
---|
1156 | if (empty($signed_val) || mb_strpos($signed_val, '-') === false) { |
---|
1157 | return ''; |
---|
1158 | } |
---|
1159 | return mb_substr($signed_val, 0, mb_strrpos($signed_val, '-')); |
---|
1160 | } |
---|
1161 | |
---|
1162 | /** |
---|
1163 | * Verifies a signature appended to a value by addSignature(). |
---|
1164 | * |
---|
1165 | * @access public |
---|
1166 | * @param string $signed_val A value with appended signature. |
---|
1167 | * @param string $salt (Optional) A text key to use for computing the signature. |
---|
1168 | * @param string $length (Optional) The length of the added signature. |
---|
1169 | * @return bool True if the signature matches the var. |
---|
1170 | */ |
---|
1171 | function verifySignature($signed_val, $salt=null, $length=18) |
---|
1172 | { |
---|
1173 | // Strip the value from the signed value. |
---|
1174 | $val = removeSignature($signed_val); |
---|
1175 | // If the signed value matches the original signed value we consider the value safe. |
---|
1176 | if ('' != $signed_val && $signed_val == addSignature($val, $salt, $length)) { |
---|
1177 | // Signature verified. |
---|
1178 | return true; |
---|
1179 | } else { |
---|
1180 | $app =& App::getInstance(); |
---|
1181 | $app->logMsg(sprintf('Failed signature (%s should be %s)', $signed_val, addSignature($val, $salt, $length)), LOG_DEBUG, __FILE__, __LINE__); |
---|
1182 | return false; |
---|
1183 | } |
---|
1184 | } |
---|
1185 | |
---|
1186 | /** |
---|
1187 | * Sends empty output to the browser and flushes the php buffer so the client |
---|
1188 | * will see data before the page is finished processing. |
---|
1189 | */ |
---|
1190 | function flushBuffer() |
---|
1191 | { |
---|
1192 | echo str_repeat(' ', 205); |
---|
1193 | flush(); |
---|
1194 | } |
---|
1195 | |
---|
1196 | /** |
---|
1197 | * Adds email address to mailman mailing list. Requires /etc/sudoers entry for apache to sudo execute add_members. |
---|
1198 | * Don't forget to allow php_admin_value open_basedir access to "/var/mailman/bin". |
---|
1199 | * |
---|
1200 | * @access public |
---|
1201 | * @param string $email Email address to add. |
---|
1202 | * @param string $list Name of list to add to. |
---|
1203 | * @param bool $send_welcome_message True to send welcome message to subscriber. |
---|
1204 | * @return bool True on success, false on failure. |
---|
1205 | */ |
---|
1206 | function mailmanAddMember($email, $list, $send_welcome_message=false) |
---|
1207 | { |
---|
1208 | $app =& App::getInstance(); |
---|
1209 | |
---|
1210 | $add_members = '/usr/lib/mailman/bin/add_members'; |
---|
1211 | if (@is_executable($add_members)) { |
---|
1212 | $welcome_msg = $send_welcome_message ? 'y' : 'n'; |
---|
1213 | exec(sprintf("/bin/echo '%s' | /usr/bin/sudo %s -r - --welcome-msg=%s --admin-notify=n '%s'", escapeshellarg($email), escapeshellarg($add_members), $welcome_msg, escapeshellarg($list)), $stdout, $return_code); |
---|
1214 | if (0 == $return_code) { |
---|
1215 | $app->logMsg(sprintf('Mailman add member success for list: %s, user: %s', $list, $email), LOG_INFO, __FILE__, __LINE__); |
---|
1216 | return true; |
---|
1217 | } else { |
---|
1218 | $app->logMsg(sprintf('Mailman add member failed for list: %s, user: %s, with message: %s', $list, $email, getDump($stdout)), LOG_WARNING, __FILE__, __LINE__); |
---|
1219 | return false; |
---|
1220 | } |
---|
1221 | } else { |
---|
1222 | $app->logMsg(sprintf('Mailman add member program not executable: %s', $add_members), LOG_WARNING, __FILE__, __LINE__); |
---|
1223 | return false; |
---|
1224 | } |
---|
1225 | } |
---|
1226 | |
---|
1227 | /** |
---|
1228 | * Removes email address from mailman mailing list. Requires /etc/sudoers entry for apache to sudo execute add_members. |
---|
1229 | * Don't forget to allow php_admin_value open_basedir access to "/var/mailman/bin". |
---|
1230 | * |
---|
1231 | * @access public |
---|
1232 | * @param string $email Email address to add. |
---|
1233 | * @param string $list Name of list to add to. |
---|
1234 | * @param bool $send_user_ack True to send goodbye message to subscriber. |
---|
1235 | * @return bool True on success, false on failure. |
---|
1236 | */ |
---|
1237 | function mailmanRemoveMember($email, $list, $send_user_ack=false) |
---|
1238 | { |
---|
1239 | $app =& App::getInstance(); |
---|
1240 | |
---|
1241 | $remove_members = '/usr/lib/mailman/bin/remove_members'; |
---|
1242 | if (@is_executable($remove_members)) { |
---|
1243 | $userack = $send_user_ack ? '' : '--nouserack'; |
---|
1244 | exec(sprintf("/usr/bin/sudo %s %s --noadminack '%s' '%s'", escapeshellarg($remove_members), $userack, escapeshellarg($list), escapeshellarg($email)), $stdout, $return_code); |
---|
1245 | if (0 == $return_code) { |
---|
1246 | $app->logMsg(sprintf('Mailman remove member success for list: %s, user: %s', $list, $email), LOG_INFO, __FILE__, __LINE__); |
---|
1247 | return true; |
---|
1248 | } else { |
---|
1249 | $app->logMsg(sprintf('Mailman remove member failed for list: %s, user: %s, with message: %s', $list, $email, getDump($stdout)), LOG_WARNING, __FILE__, __LINE__); |
---|
1250 | return false; |
---|
1251 | } |
---|
1252 | } else { |
---|
1253 | // $app->logMsg(sprintf('Mailman remove member program not executable: %s', $remove_members), LOG_WARNING, __FILE__, __LINE__); |
---|
1254 | return false; |
---|
1255 | } |
---|
1256 | } |
---|
1257 | |
---|
1258 | /* |
---|
1259 | * Returns the remote IP address, taking into consideration proxy servers. |
---|
1260 | * |
---|
1261 | * If strict checking is enabled, we will only trust REMOTE_ADDR or an HTTP header |
---|
1262 | * value if REMOTE_ADDR is a trusted proxy (configured as an array in $cfg['trusted_proxies']). |
---|
1263 | * |
---|
1264 | * @access public |
---|
1265 | * @param bool $dolookup Resolve to IP to a hostname? |
---|
1266 | * @param bool $trust_all_proxies Should we trust any IP address set in HTTP_* variables? Set to FALSE for secure usage. |
---|
1267 | * @return mixed Canonicalized IP address (or a corresponding hostname if $dolookup is true), or false if no IP was found. |
---|
1268 | * @author Alix Axel <http://stackoverflow.com/a/2031935/277303> |
---|
1269 | * @author Corey Ballou <http://blackbe.lt/advanced-method-to-obtain-the-client-ip-in-php/> |
---|
1270 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
1271 | * @version 1.0 |
---|
1272 | * @since 12 Sep 2014 19:07:46 |
---|
1273 | */ |
---|
1274 | function getRemoteAddr($dolookup=false, $trust_all_proxies=true) |
---|
1275 | { |
---|
1276 | global $cfg; |
---|
1277 | |
---|
1278 | if (!isset($_SERVER['REMOTE_ADDR'])) { |
---|
1279 | // In some cases this won't be set, e.g., CLI scripts. |
---|
1280 | return null; |
---|
1281 | } |
---|
1282 | |
---|
1283 | // Use an HTTP header value only if $trust_all_proxies is true or when REMOTE_ADDR is in our $cfg['trusted_proxies'] array. |
---|
1284 | // $cfg['trusted_proxies'] is an array of proxy server addresses we expect to see in REMOTE_ADDR. |
---|
1285 | if ($trust_all_proxies || isset($cfg['trusted_proxies']) && is_array($cfg['trusted_proxies']) && in_array($_SERVER['REMOTE_ADDR'], $cfg['trusted_proxies'], true)) { |
---|
1286 | // Then it's probably safe to use an IP address value set in an HTTP header. |
---|
1287 | // Loop through possible IP address headers. |
---|
1288 | foreach (array('HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED') as $key) { |
---|
1289 | // Loop through and if |
---|
1290 | if (array_key_exists($key, $_SERVER)) { |
---|
1291 | foreach (explode(',', $_SERVER[$key]) as $addr) { |
---|
1292 | // Strip non-address data to avoid "PHP Warning: inet_pton(): Unrecognized address for=189.211.197.173 in ./Utilities.inc.php on line 1293" |
---|
1293 | $addr = preg_replace('/[^=]=/', '', $addr); |
---|
1294 | $addr = canonicalIPAddr(trim($addr)); |
---|
1295 | if (false !== filter_var($addr, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE)) { |
---|
1296 | return $dolookup && '' != $addr ? gethostbyaddr($addr) : $addr; |
---|
1297 | } |
---|
1298 | } |
---|
1299 | } |
---|
1300 | } |
---|
1301 | } |
---|
1302 | |
---|
1303 | $addr = canonicalIPAddr(trim($_SERVER['REMOTE_ADDR'])); |
---|
1304 | return $dolookup && $addr ? gethostbyaddr($addr) : $addr; |
---|
1305 | } |
---|
1306 | |
---|
1307 | /* |
---|
1308 | * Converts an ipv4 IP address in hexadecimal form into canonical form (i.e., it removes the prefix). |
---|
1309 | * |
---|
1310 | * @access public |
---|
1311 | * @param string $addr IP address. |
---|
1312 | * @return string Canonical IP address. |
---|
1313 | * @author Sander Steffann <http://stackoverflow.com/a/12436099/277303> |
---|
1314 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
1315 | * @version 1.0 |
---|
1316 | * @since 15 Sep 2012 |
---|
1317 | */ |
---|
1318 | function canonicalIPAddr($addr) |
---|
1319 | { |
---|
1320 | // Known prefix |
---|
1321 | $v4mapped_prefix_bin = pack('H*', '00000000000000000000ffff'); |
---|
1322 | |
---|
1323 | // Parse |
---|
1324 | $addr_bin = inet_pton($addr); |
---|
1325 | |
---|
1326 | // Check prefix |
---|
1327 | if (substr($addr_bin, 0, strlen($v4mapped_prefix_bin)) == $v4mapped_prefix_bin) { |
---|
1328 | // Strip prefix |
---|
1329 | $addr_bin = substr($addr_bin, strlen($v4mapped_prefix_bin)); |
---|
1330 | } |
---|
1331 | |
---|
1332 | // Convert back to printable address in canonical form |
---|
1333 | return inet_ntop($addr_bin); |
---|
1334 | } |
---|
1335 | |
---|
1336 | /** |
---|
1337 | * Tests whether a given IP address can be found in an array of IP address networks. |
---|
1338 | * Elements of networks array can be single IP addresses or an IP address range in CIDR notation |
---|
1339 | * See: http://en.wikipedia.org/wiki/Classless_inter-domain_routing |
---|
1340 | * |
---|
1341 | * @access public |
---|
1342 | * @param string IP address to search for. |
---|
1343 | * @param array Array of networks to search within. |
---|
1344 | * @return mixed Returns the network that matched on success, false on failure. |
---|
1345 | */ |
---|
1346 | function ipInRange($addr, $networks) |
---|
1347 | { |
---|
1348 | if (!is_array($networks)) { |
---|
1349 | $networks = array($networks); |
---|
1350 | } |
---|
1351 | |
---|
1352 | $addr_binary = sprintf('%032b', ip2long($addr)); |
---|
1353 | foreach ($networks as $network) { |
---|
1354 | if (preg_match('![\d\.]{7,15}/\d{1,2}!', $network)) { |
---|
1355 | // IP is in CIDR notation. |
---|
1356 | list($cidr_ip, $cidr_bitmask) = explode('/', $network); |
---|
1357 | $cidr_ip_binary = sprintf('%032b', ip2long($cidr_ip)); |
---|
1358 | if (mb_substr($addr_binary, 0, $cidr_bitmask) === mb_substr($cidr_ip_binary, 0, $cidr_bitmask)) { |
---|
1359 | // IP address is within the specified IP range. |
---|
1360 | return $network; |
---|
1361 | } |
---|
1362 | } else { |
---|
1363 | if ($addr === $network) { |
---|
1364 | // IP address exactly matches. |
---|
1365 | return $network; |
---|
1366 | } |
---|
1367 | } |
---|
1368 | } |
---|
1369 | |
---|
1370 | return false; |
---|
1371 | } |
---|
1372 | |
---|
1373 | /** |
---|
1374 | * If the given $url is on the same web site, return true. This can be used to |
---|
1375 | * prevent from sending sensitive info in a get query (like the SID) to another |
---|
1376 | * domain. |
---|
1377 | * |
---|
1378 | * @param string $url the URI to test. |
---|
1379 | * @return bool True if given $url is our domain or has no domain (is a relative url), false if it's another. |
---|
1380 | */ |
---|
1381 | function isMyDomain($url) |
---|
1382 | { |
---|
1383 | static $urls = array(); |
---|
1384 | |
---|
1385 | if (!isset($urls[$url])) { |
---|
1386 | if (!preg_match('|https?://[\w.]+/|', $url)) { |
---|
1387 | // If we can't find a domain we assume the URL is local (i.e. "/my/url/path/" or "../img/file.jpg"). |
---|
1388 | $urls[$url] = true; |
---|
1389 | } else { |
---|
1390 | $urls[$url] = preg_match('|https?://[\w.]*' . preg_quote(getenv('HTTP_HOST'), '|') . '|i', $url); |
---|
1391 | } |
---|
1392 | } |
---|
1393 | return $urls[$url]; |
---|
1394 | } |
---|
1395 | |
---|
1396 | /** |
---|
1397 | * Takes a URL and returns it without the query or anchor portion |
---|
1398 | * |
---|
1399 | * @param string $url any kind of URI |
---|
1400 | * @return string the URI with ? or # and everything after removed |
---|
1401 | */ |
---|
1402 | function stripQuery($url) |
---|
1403 | { |
---|
1404 | return preg_replace('/[?#].*$/', '', $url); |
---|
1405 | } |
---|
1406 | |
---|
1407 | /** |
---|
1408 | * Returns a fully qualified URL to the current script, including the query. |
---|
1409 | * |
---|
1410 | * @return string a full url to the current script |
---|
1411 | */ |
---|
1412 | function absoluteMe() |
---|
1413 | { |
---|
1414 | $protocol = ('on' == getenv('HTTPS')) ? 'https://' : 'http://'; |
---|
1415 | return $protocol . getenv('HTTP_HOST') . getenv('REQUEST_URI'); |
---|
1416 | } |
---|
1417 | |
---|
1418 | /** |
---|
1419 | * Compares the current url with the referring url. |
---|
1420 | * |
---|
1421 | * @param bool $exclude_query Remove the query string first before comparing. |
---|
1422 | * @return bool True if the current URL is the same as the referring URL, false otherwise. |
---|
1423 | */ |
---|
1424 | function refererIsMe($exclude_query=false) |
---|
1425 | { |
---|
1426 | $current_url = absoluteMe(); |
---|
1427 | $referrer_url = getenv('HTTP_REFERER'); |
---|
1428 | |
---|
1429 | // If one of the hostnames is an IP address, compare only the path of both. |
---|
1430 | if (preg_match('/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/', parse_url($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))) { |
---|
1431 | $current_url = preg_replace('@^https?://[^/]+@', '', $current_url); |
---|
1432 | $referrer_url = preg_replace('@^https?://[^/]+@', '', $referrer_url); |
---|
1433 | } |
---|
1434 | |
---|
1435 | if ($exclude_query) { |
---|
1436 | return (stripQuery($current_url) == stripQuery($referrer_url)); |
---|
1437 | } else { |
---|
1438 | $app =& App::getInstance(); |
---|
1439 | $app->logMsg(sprintf('refererIsMe comparison: %s == %s', $current_url, $referrer_url), LOG_DEBUG, __FILE__, __LINE__); |
---|
1440 | return ($current_url == $referrer_url); |
---|
1441 | } |
---|
1442 | } |
---|
1443 | |
---|
1444 | /* |
---|
1445 | * Returns true if the given URL resolves to a resource with a HTTP 2xx or 3xx header response. |
---|
1446 | * The download will abort if it retrieves >= 10KB of data to avoid downloading large files. |
---|
1447 | * We couldn't use CURLOPT_NOBODY (a HEAD request) because some services don't behave without a GET request (ahem, BBC). |
---|
1448 | * This function may not be very portable, if the server doesn't support CURLOPT_PROGRESSFUNCTION. |
---|
1449 | * |
---|
1450 | * @access public |
---|
1451 | * @param string $url URL to a file. |
---|
1452 | * @return bool True if the resource exists, false otherwise. |
---|
1453 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
1454 | * @version 2.0 |
---|
1455 | * @since 02 May 2015 15:10:09 |
---|
1456 | */ |
---|
1457 | function httpExists($url) |
---|
1458 | { |
---|
1459 | $ch = curl_init($url); |
---|
1460 | curl_setopt($ch, CURLOPT_TIMEOUT, 5); |
---|
1461 | curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); |
---|
1462 | curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); |
---|
1463 | curl_setopt($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"); |
---|
1464 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Don't pass through data to the browser. |
---|
1465 | curl_setopt($ch, CURLOPT_BUFFERSIZE, 128); // Frequent progress function calls. |
---|
1466 | curl_setopt($ch, CURLOPT_NOPROGRESS, false); // Required to use CURLOPT_PROGRESSFUNCTION. |
---|
1467 | // Function arguments for CURLOPT_PROGRESSFUNCTION changed with php 5.5.0. |
---|
1468 | if (version_compare(PHP_VERSION, '5.5.0', '>=')) { |
---|
1469 | curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, function($ch, $dltot, $dlcur, $ultot, $ulcur){ |
---|
1470 | // Return a non-zero value to abort the transfer. In which case, the transfer will set a CURLE_ABORTED_BY_CALLBACK error |
---|
1471 | // 10KB should be enough to catch a few 302 redirect headers and get to the actual content. |
---|
1472 | return ($dlcur > 10*1024) ? 1 : 0; |
---|
1473 | }); |
---|
1474 | } else { |
---|
1475 | curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, function($dltot, $dlcur, $ultot, $ulcur){ |
---|
1476 | // Return a non-zero value to abort the transfer. In which case, the transfer will set a CURLE_ABORTED_BY_CALLBACK error |
---|
1477 | // 10KB should be enough to catch a few 302 redirect headers and get to the actual content. |
---|
1478 | return ($dlcur > 10*1024) ? 1 : 0; |
---|
1479 | }); |
---|
1480 | } |
---|
1481 | curl_exec($ch); |
---|
1482 | $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); |
---|
1483 | return preg_match('/^[23]\d\d$/', $http_code); |
---|
1484 | } |
---|