| [21] | 1 | <?php |
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| 2 | ////////////////////////////////////////////////////////////// |
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| 3 | /// phpThumb() by James Heinrich <info@silisoftware.com> // |
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| 4 | // available at http://phpthumb.sourceforge.net /// |
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| 5 | ////////////////////////////////////////////////////////////// |
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| 6 | /// // |
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| 7 | // phpthumb.functions.php - general support functions // |
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| 8 | // /// |
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| 9 | ////////////////////////////////////////////////////////////// |
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| 10 | |
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| 11 | class phpthumb_functions { |
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| 12 | |
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| 13 | function user_function_exists($functionname) { |
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| 14 | if (function_exists('get_defined_functions')) { |
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| 15 | static $get_defined_functions = array(); |
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| 16 | if (empty($get_defined_functions)) { |
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| 17 | $get_defined_functions = get_defined_functions(); |
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| 18 | } |
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| 19 | return in_array(strtolower($functionname), $get_defined_functions['user']); |
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| 20 | } |
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| 21 | return function_exists($functionname); |
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| 22 | } |
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| 23 | |
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| 24 | |
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| 25 | function builtin_function_exists($functionname) { |
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| 26 | if (function_exists('get_defined_functions')) { |
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| 27 | static $get_defined_functions = array(); |
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| 28 | if (empty($get_defined_functions)) { |
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| 29 | $get_defined_functions = get_defined_functions(); |
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| 30 | } |
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| 31 | return in_array(strtolower($functionname), $get_defined_functions['internal']); |
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| 32 | } |
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| 33 | return function_exists($functionname); |
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| 34 | } |
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| 35 | |
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| 36 | |
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| 37 | function version_compare_replacement_sub($version1, $version2, $operator='') { |
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| 38 | // If you specify the third optional operator argument, you can test for a particular relationship. |
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| 39 | // The possible operators are: <, lt, <=, le, >, gt, >=, ge, ==, =, eq, !=, <>, ne respectively. |
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| 40 | // Using this argument, the function will return 1 if the relationship is the one specified by the operator, 0 otherwise. |
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| 41 | |
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| 42 | // If a part contains special version strings these are handled in the following order: dev < (alpha = a) < (beta = b) < RC < pl |
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| 43 | static $versiontype_lookup = array(); |
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| 44 | if (empty($versiontype_lookup)) { |
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| 45 | $versiontype_lookup['dev'] = 10001; |
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| 46 | $versiontype_lookup['a'] = 10002; |
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| 47 | $versiontype_lookup['alpha'] = 10002; |
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| 48 | $versiontype_lookup['b'] = 10003; |
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| 49 | $versiontype_lookup['beta'] = 10003; |
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| 50 | $versiontype_lookup['RC'] = 10004; |
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| 51 | $versiontype_lookup['pl'] = 10005; |
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| 52 | } |
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| 53 | if (isset($versiontype_lookup[$version1])) { |
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| 54 | $version1 = $versiontype_lookup[$version1]; |
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| 55 | } |
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| 56 | if (isset($versiontype_lookup[$version2])) { |
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| 57 | $version2 = $versiontype_lookup[$version2]; |
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| 58 | } |
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| 59 | |
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| 60 | switch ($operator) { |
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| 61 | case '<': |
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| 62 | case 'lt': |
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| 63 | return intval($version1 < $version2); |
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| 64 | break; |
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| 65 | case '<=': |
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| 66 | case 'le': |
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| 67 | return intval($version1 <= $version2); |
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| 68 | break; |
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| 69 | case '>': |
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| 70 | case 'gt': |
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| 71 | return intval($version1 > $version2); |
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| 72 | break; |
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| 73 | case '>=': |
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| 74 | case 'ge': |
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| 75 | return intval($version1 >= $version2); |
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| 76 | break; |
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| 77 | case '==': |
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| 78 | case '=': |
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| 79 | case 'eq': |
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| 80 | return intval($version1 == $version2); |
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| 81 | break; |
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| 82 | case '!=': |
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| 83 | case '<>': |
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| 84 | case 'ne': |
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| 85 | return intval($version1 != $version2); |
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| 86 | break; |
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| 87 | } |
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| 88 | if ($version1 == $version2) { |
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| 89 | return 0; |
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| 90 | } elseif ($version1 < $version2) { |
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| 91 | return -1; |
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| 92 | } |
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| 93 | return 1; |
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| 94 | } |
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| 95 | |
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| 96 | |
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| 97 | function version_compare_replacement($version1, $version2, $operator='') { |
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| 98 | if (function_exists('version_compare')) { |
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| 99 | // built into PHP v4.1.0+ |
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| 100 | return version_compare($version1, $version2, $operator); |
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| 101 | } |
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| 102 | |
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| 103 | // The function first replaces _, - and + with a dot . in the version strings |
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| 104 | $version1 = strtr($version1, '_-+', '...'); |
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| 105 | $version2 = strtr($version2, '_-+', '...'); |
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| 106 | |
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| 107 | // and also inserts dots . before and after any non number so that for example '4.3.2RC1' becomes '4.3.2.RC.1'. |
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| 108 | // Then it splits the results like if you were using explode('.',$ver). Then it compares the parts starting from left to right. |
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| 109 | $version1 = eregi_replace('([0-9]+)([A-Z]+)([0-9]+)', '\\1.\\2.\\3', $version1); |
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| 110 | $version2 = eregi_replace('([0-9]+)([A-Z]+)([0-9]+)', '\\1.\\2.\\3', $version2); |
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| 111 | |
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| 112 | $parts1 = explode('.', $version1); |
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| 113 | $parts2 = explode('.', $version1); |
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| 114 | $parts_count = max(count($parts1), count($parts2)); |
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| 115 | for ($i = 0; $i < $parts_count; $i++) { |
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| 116 | $comparison = phpthumb_functions::version_compare_replacement_sub($version1, $version2, $operator); |
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| 117 | if ($comparison != 0) { |
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| 118 | return $comparison; |
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| 119 | } |
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| 120 | } |
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| 121 | return 0; |
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| 122 | } |
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| 123 | |
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| 124 | |
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| 125 | function phpinfo_array() { |
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| 126 | static $phpinfo_array = array(); |
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| 127 | if (empty($phpinfo_array)) { |
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| 128 | ob_start(); |
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| 129 | phpinfo(); |
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| 130 | $phpinfo = ob_get_contents(); |
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| 131 | ob_end_clean(); |
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| 132 | $phpinfo_array = explode("\n", $phpinfo); |
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| 133 | } |
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| 134 | return $phpinfo_array; |
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| 135 | } |
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| 136 | |
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| 137 | |
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| 138 | function exif_info() { |
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| 139 | static $exif_info = array(); |
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| 140 | if (empty($exif_info)) { |
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| 141 | // based on code by johnschaefer at gmx dot de |
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| 142 | // from PHP help on gd_info() |
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| 143 | $exif_info = array( |
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| 144 | 'EXIF Support' => '', |
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| 145 | 'EXIF Version' => '', |
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| 146 | 'Supported EXIF Version' => '', |
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| 147 | 'Supported filetypes' => '' |
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| 148 | ); |
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| 149 | $phpinfo_array = phpthumb_functions::phpinfo_array(); |
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| 150 | foreach ($phpinfo_array as $line) { |
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| 151 | $line = trim(strip_tags($line)); |
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| 152 | foreach ($exif_info as $key => $value) { |
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| 153 | if (strpos($line, $key) === 0) { |
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| 154 | $newvalue = trim(str_replace($key, '', $line)); |
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| 155 | $exif_info[$key] = $newvalue; |
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| 156 | } |
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| 157 | } |
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| 158 | } |
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| 159 | } |
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| 160 | return $exif_info; |
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| 161 | } |
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| 162 | |
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| 163 | |
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| 164 | function ImageTypeToMIMEtype($imagetype) { |
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| 165 | if (function_exists('image_type_to_mime_type') && ($imagetype >= 1) && ($imagetype <= 16)) { |
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| 166 | // PHP v4.3.0+ |
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| 167 | return image_type_to_mime_type($imagetype); |
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| 168 | } |
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| 169 | static $image_type_to_mime_type = array( |
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| 170 | 1 => 'image/gif', // IMAGETYPE_GIF |
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| 171 | 2 => 'image/jpeg', // IMAGETYPE_JPEG |
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| 172 | 3 => 'image/png', // IMAGETYPE_PNG |
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| 173 | 4 => 'application/x-shockwave-flash', // IMAGETYPE_SWF |
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| 174 | 5 => 'image/psd', // IMAGETYPE_PSD |
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| 175 | 6 => 'image/bmp', // IMAGETYPE_BMP |
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| 176 | 7 => 'image/tiff', // IMAGETYPE_TIFF_II (intel byte order) |
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| 177 | 8 => 'image/tiff', // IMAGETYPE_TIFF_MM (motorola byte order) |
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| 178 | 9 => 'application/octet-stream', // IMAGETYPE_JPC |
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| 179 | 10 => 'image/jp2', // IMAGETYPE_JP2 |
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| 180 | 11 => 'application/octet-stream', // IMAGETYPE_JPX |
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| 181 | 12 => 'application/octet-stream', // IMAGETYPE_JB2 |
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| 182 | 13 => 'application/x-shockwave-flash', // IMAGETYPE_SWC |
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| 183 | 14 => 'image/iff', // IMAGETYPE_IFF |
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| 184 | 15 => 'image/vnd.wap.wbmp', // IMAGETYPE_WBMP |
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| 185 | 16 => 'image/xbm', // IMAGETYPE_XBM |
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| 186 | |
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| 187 | 'gif' => 'image/gif', // IMAGETYPE_GIF |
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| 188 | 'jpg' => 'image/jpeg', // IMAGETYPE_JPEG |
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| 189 | 'jpeg' => 'image/jpeg', // IMAGETYPE_JPEG |
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| 190 | 'png' => 'image/png', // IMAGETYPE_PNG |
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| 191 | 'bmp' => 'image/bmp', // IMAGETYPE_BMP |
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| 192 | 'ico' => 'image/x-icon', |
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| 193 | ); |
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| 194 | |
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| 195 | return (isset($image_type_to_mime_type[$imagetype]) ? $image_type_to_mime_type[$imagetype] : false); |
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| 196 | } |
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| 197 | |
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| 198 | |
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| 199 | function HexCharDisplay($string) { |
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| 200 | $len = strlen($string); |
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| 201 | $output = ''; |
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| 202 | for ($i = 0; $i < $len; $i++) { |
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| 203 | $output .= ' 0x'.str_pad(dechex(ord($string{$i})), 2, '0', STR_PAD_LEFT); |
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| 204 | } |
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| 205 | return $output; |
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| 206 | } |
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| 207 | |
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| 208 | |
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| 209 | function IsHexColor($HexColorString) { |
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| 210 | return eregi('^[0-9A-F]{6}$', $HexColorString); |
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| 211 | } |
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| 212 | |
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| 213 | |
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| 214 | function ImageColorAllocateAlphaSafe(&$gdimg_hexcolorallocate, $R, $G, $B, $alpha=false) { |
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| 215 | if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.2', '>=') && ($alpha !== false)) { |
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| 216 | return ImageColorAllocateAlpha($gdimg_hexcolorallocate, $R, $G, $B, intval($alpha)); |
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| 217 | } else { |
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| 218 | return ImageColorAllocate($gdimg_hexcolorallocate, $R, $G, $B); |
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| 219 | } |
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| 220 | } |
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| 221 | |
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| 222 | function ImageHexColorAllocate(&$gdimg_hexcolorallocate, $HexColorString, $dieOnInvalid=false, $alpha=false) { |
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| 223 | if (!is_resource($gdimg_hexcolorallocate)) { |
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| 224 | die('$gdimg_hexcolorallocate is not a GD resource in ImageHexColorAllocate()'); |
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| 225 | } |
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| 226 | if (phpthumb_functions::IsHexColor($HexColorString)) { |
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| 227 | $R = hexdec(substr($HexColorString, 0, 2)); |
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| 228 | $G = hexdec(substr($HexColorString, 2, 2)); |
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| 229 | $B = hexdec(substr($HexColorString, 4, 2)); |
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| 230 | return phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg_hexcolorallocate, $R, $G, $B, $alpha); |
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| 231 | } |
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| 232 | if ($dieOnInvalid) { |
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| 233 | die('Invalid hex color string: "'.$HexColorString.'"'); |
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| 234 | } |
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| 235 | return ImageColorAllocate($gdimg_hexcolorallocate, 0x00, 0x00, 0x00); |
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| 236 | } |
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| 237 | |
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| 238 | |
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| 239 | function HexColorXOR($hexcolor) { |
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| 240 | return strtoupper(str_pad(dechex(~hexdec($hexcolor) & 0xFFFFFF), 6, '0', STR_PAD_LEFT)); |
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| 241 | } |
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| 242 | |
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| 243 | |
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| 244 | function GetPixelColor(&$img, $x, $y) { |
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| 245 | if (!is_resource($img)) { |
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| 246 | return false; |
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| 247 | } |
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| 248 | return @ImageColorsForIndex($img, @ImageColorAt($img, $x, $y)); |
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| 249 | } |
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| 250 | |
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| 251 | |
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| 252 | function GrayscaleValue($r, $g, $b) { |
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| 253 | return round(($r * 0.30) + ($g * 0.59) + ($b * 0.11)); |
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| 254 | } |
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| 255 | |
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| 256 | |
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| 257 | function GrayscalePixel($OriginalPixel) { |
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| 258 | $gray = phpthumb_functions::GrayscaleValue($OriginalPixel['red'], $OriginalPixel['green'], $OriginalPixel['blue']); |
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| 259 | return array('red'=>$gray, 'green'=>$gray, 'blue'=>$gray); |
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| 260 | } |
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| 261 | |
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| 262 | |
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| 263 | function GrayscalePixelRGB($rgb) { |
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| 264 | $r = ($rgb >> 16) & 0xFF; |
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| 265 | $g = ($rgb >> 8) & 0xFF; |
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| 266 | $b = $rgb & 0xFF; |
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| 267 | return ($r * 0.299) + ($g * 0.587) + ($b * 0.114); |
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| 268 | } |
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| 269 | |
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| 270 | |
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| 271 | function ImageCopyResampleBicubic($dst_img, $src_img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h) { |
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| 272 | // ron at korving dot demon dot nl |
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| 273 | // http://www.php.net/imagecopyresampled |
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| 274 | |
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| 275 | $scaleX = ($src_w - 1) / $dst_w; |
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| 276 | $scaleY = ($src_h - 1) / $dst_h; |
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| 277 | |
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| 278 | $scaleX2 = $scaleX / 2.0; |
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| 279 | $scaleY2 = $scaleY / 2.0; |
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| 280 | |
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| 281 | $isTrueColor = ImageIsTrueColor($src_img); |
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| 282 | |
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| 283 | for ($y = $src_y; $y < $src_y + $dst_h; $y++) { |
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| 284 | $sY = $y * $scaleY; |
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| 285 | $siY = (int) $sY; |
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| 286 | $siY2 = (int) $sY + $scaleY2; |
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| 287 | |
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| 288 | for ($x = $src_x; $x < $src_x + $dst_w; $x++) { |
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| 289 | $sX = $x * $scaleX; |
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| 290 | $siX = (int) $sX; |
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| 291 | $siX2 = (int) $sX + $scaleX2; |
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| 292 | |
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| 293 | if ($isTrueColor) { |
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| 294 | |
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| 295 | $c1 = ImageColorAt($src_img, $siX, $siY2); |
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| 296 | $c2 = ImageColorAt($src_img, $siX, $siY); |
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| 297 | $c3 = ImageColorAt($src_img, $siX2, $siY2); |
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| 298 | $c4 = ImageColorAt($src_img, $siX2, $siY); |
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| 299 | |
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| 300 | $r = (( $c1 + $c2 + $c3 + $c4 ) >> 2) & 0xFF0000; |
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| 301 | $g = ((($c1 & 0x00FF00) + ($c2 & 0x00FF00) + ($c3 & 0x00FF00) + ($c4 & 0x00FF00)) >> 2) & 0x00FF00; |
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| 302 | $b = ((($c1 & 0x0000FF) + ($c2 & 0x0000FF) + ($c3 & 0x0000FF) + ($c4 & 0x0000FF)) >> 2); |
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| 303 | |
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| 304 | } else { |
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| 305 | |
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| 306 | $c1 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX, $siY2)); |
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| 307 | $c2 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX, $siY)); |
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| 308 | $c3 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX2, $siY2)); |
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| 309 | $c4 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX2, $siY)); |
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| 310 | |
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| 311 | $r = ($c1['red'] + $c2['red'] + $c3['red'] + $c4['red'] ) << 14; |
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| 312 | $g = ($c1['green'] + $c2['green'] + $c3['green'] + $c4['green']) << 6; |
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| 313 | $b = ($c1['blue'] + $c2['blue'] + $c3['blue'] + $c4['blue'] ) >> 2; |
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| 314 | |
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| 315 | } |
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| 316 | ImageSetPixel($dst_img, $dst_x + $x - $src_x, $dst_y + $y - $src_y, $r+$g+$b); |
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| 317 | } |
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| 318 | } |
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| 319 | return true; |
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| 320 | } |
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| 321 | |
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| 322 | |
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| 323 | function ImageCreateFunction($x_size, $y_size) { |
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| 324 | $ImageCreateFunction = 'ImageCreate'; |
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| 325 | if (phpthumb_functions::gd_version() >= 2.0) { |
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| 326 | $ImageCreateFunction = 'ImageCreateTrueColor'; |
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| 327 | } |
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| 328 | if (!function_exists($ImageCreateFunction)) { |
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| 329 | return phpthumb::ErrorImage($ImageCreateFunction.'() does not exist - no GD support?'); |
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| 330 | } |
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| 331 | if (($x_size <= 0) || ($y_size <= 0)) { |
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| 332 | return phpthumb::ErrorImage('Invalid image dimensions: '.$ImageCreateFunction.'('.$x_size.', '.$y_size.')'); |
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| 333 | } |
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| 334 | return $ImageCreateFunction($x_size, $y_size); |
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| 335 | } |
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| 336 | |
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| 337 | |
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| 338 | function ImageCopyRespectAlpha(&$dst_im, &$src_im, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $pct=100) { |
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| 339 | for ($x = $src_x; $x < $src_w; $x++) { |
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| 340 | for ($y = $src_y; $y < $src_h; $y++) { |
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| 341 | $RealPixel = phpthumb_functions::GetPixelColor($dst_im, $dst_x + $x, $dst_y + $y); |
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| 342 | $OverlayPixel = phpthumb_functions::GetPixelColor($src_im, $x, $y); |
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| 343 | $alphapct = $OverlayPixel['alpha'] / 127; |
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| 344 | $opacipct = $pct / 100; |
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| 345 | $overlaypct = (1 - $alphapct) * $opacipct; |
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| 346 | |
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| 347 | $newcolor = phpthumb_functions::ImageColorAllocateAlphaSafe( |
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| 348 | $dst_im, |
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| 349 | round($RealPixel['red'] * (1 - $overlaypct)) + ($OverlayPixel['red'] * $overlaypct), |
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| 350 | round($RealPixel['green'] * (1 - $overlaypct)) + ($OverlayPixel['green'] * $overlaypct), |
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| 351 | round($RealPixel['blue'] * (1 - $overlaypct)) + ($OverlayPixel['blue'] * $overlaypct), |
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| 352 | //$RealPixel['alpha']); |
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| 353 | 0); |
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| 354 | |
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| 355 | ImageSetPixel($dst_im, $dst_x + $x, $dst_y + $y, $newcolor); |
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| 356 | } |
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| 357 | } |
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| 358 | return true; |
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| 359 | } |
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| 360 | |
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| 361 | |
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| 362 | function ProportionalResize($old_width, $old_height, $new_width=false, $new_height=false) { |
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| 363 | $old_aspect_ratio = $old_width / $old_height; |
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| 364 | if (($new_width === false) && ($new_height === false)) { |
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| 365 | return false; |
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| 366 | } elseif ($new_width === false) { |
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| 367 | $new_width = $new_height * $old_aspect_ratio; |
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| 368 | } elseif ($new_height === false) { |
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| 369 | $new_height = $new_width / $old_aspect_ratio; |
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| 370 | } |
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| 371 | $new_aspect_ratio = $new_width / $new_height; |
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| 372 | if ($new_aspect_ratio == $old_aspect_ratio) { |
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| 373 | // great, done |
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| 374 | } elseif ($new_aspect_ratio < $old_aspect_ratio) { |
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| 375 | // limited by width |
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| 376 | $new_height = $new_width / $old_aspect_ratio; |
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| 377 | } elseif ($new_aspect_ratio > $old_aspect_ratio) { |
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| 378 | // limited by height |
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| 379 | $new_width = $new_height * $old_aspect_ratio; |
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| 380 | } |
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| 381 | return array(round($new_width), round($new_height)); |
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| 382 | } |
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| 383 | |
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| 384 | |
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| 385 | function FunctionIsDisabled($function) { |
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| 386 | static $DisabledFunctions = null; |
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| 387 | if (is_null($DisabledFunctions)) { |
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| 388 | $disable_functions_local = explode(',', @ini_get('disable_functions')); |
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| 389 | $disable_functions_global = explode(',', @get_cfg_var('disable_functions')); |
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| 390 | foreach ($disable_functions_local as $key => $value) { |
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| 391 | $DisabledFunctions[$value] = 'local'; |
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| 392 | } |
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| 393 | foreach ($disable_functions_global as $key => $value) { |
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| 394 | $DisabledFunctions[$value] = 'global'; |
|---|
| 395 | } |
|---|
| 396 | if (@ini_get('safe_mode')) { |
|---|
| 397 | $DisabledFunctions['shell_exec'] = 'local'; |
|---|
| 398 | } |
|---|
| 399 | } |
|---|
| 400 | return isset($DisabledFunctions[$function]); |
|---|
| 401 | } |
|---|
| 402 | |
|---|
| 403 | |
|---|
| 404 | function SafeExec($command) { |
|---|
| 405 | static $AllowedExecFunctions = array(); |
|---|
| 406 | if (empty($AllowedExecFunctions)) { |
|---|
| 407 | $AllowedExecFunctions = array('shell_exec'=>true, 'passthru'=>true, 'system'=>true, 'exec'=>true); |
|---|
| 408 | foreach ($AllowedExecFunctions as $key => $value) { |
|---|
| 409 | $AllowedExecFunctions[$key] = !phpthumb_functions::FunctionIsDisabled($key); |
|---|
| 410 | } |
|---|
| 411 | } |
|---|
| 412 | foreach ($AllowedExecFunctions as $execfunction => $is_allowed) { |
|---|
| 413 | if (!$is_allowed) { |
|---|
| 414 | continue; |
|---|
| 415 | } |
|---|
| 416 | switch ($execfunction) { |
|---|
| 417 | case 'passthru': |
|---|
| 418 | ob_start(); |
|---|
| 419 | $execfunction($command); |
|---|
| 420 | $returnvalue = ob_get_contents(); |
|---|
| 421 | ob_end_clean(); |
|---|
| 422 | break; |
|---|
| 423 | |
|---|
| 424 | case 'shell_exec': |
|---|
| 425 | case 'system': |
|---|
| 426 | case 'exec': |
|---|
| 427 | default: |
|---|
| 428 | ob_start(); |
|---|
| 429 | $returnvalue = $execfunction($command); |
|---|
| 430 | ob_end_clean(); |
|---|
| 431 | break; |
|---|
| 432 | } |
|---|
| 433 | return $returnvalue; |
|---|
| 434 | } |
|---|
| 435 | return false; |
|---|
| 436 | } |
|---|
| 437 | |
|---|
| 438 | |
|---|
| 439 | function ApacheLookupURIarray($filename) { |
|---|
| 440 | // apache_lookup_uri() only works when PHP is installed as an Apache module. |
|---|
| 441 | if (php_sapi_name() == 'apache') { |
|---|
| 442 | $keys = array('status', 'the_request', 'status_line', 'method', 'content_type', 'handler', 'uri', 'filename', 'path_info', 'args', 'boundary', 'no_cache', 'no_local_copy', 'allowed', 'send_bodyct', 'bytes_sent', 'byterange', 'clength', 'unparsed_uri', 'mtime', 'request_time'); |
|---|
| 443 | if ($apacheLookupURIobject = @apache_lookup_uri($filename)) { |
|---|
| 444 | $apacheLookupURIarray = array(); |
|---|
| 445 | foreach ($keys as $key) { |
|---|
| 446 | $apacheLookupURIarray[$key] = @$apacheLookupURIobject->$key; |
|---|
| 447 | } |
|---|
| 448 | return $apacheLookupURIarray; |
|---|
| 449 | } |
|---|
| 450 | } |
|---|
| 451 | return false; |
|---|
| 452 | } |
|---|
| 453 | |
|---|
| 454 | |
|---|
| 455 | function gd_is_bundled() { |
|---|
| 456 | static $isbundled = null; |
|---|
| 457 | if (is_null($isbundled)) { |
|---|
| 458 | $gd_info = gd_info(); |
|---|
| 459 | $isbundled = (strpos($gd_info['GD Version'], 'bundled') !== false); |
|---|
| 460 | } |
|---|
| 461 | return $isbundled; |
|---|
| 462 | } |
|---|
| 463 | |
|---|
| 464 | |
|---|
| 465 | function gd_version($fullstring=false) { |
|---|
| 466 | static $cache_gd_version = array(); |
|---|
| 467 | if (empty($cache_gd_version)) { |
|---|
| 468 | $gd_info = gd_info(); |
|---|
| 469 | if (eregi('bundled \((.+)\)$', $gd_info['GD Version'], $matches)) { |
|---|
| 470 | $cache_gd_version[1] = $gd_info['GD Version']; // e.g. "bundled (2.0.15 compatible)" |
|---|
| 471 | $cache_gd_version[0] = (float) $matches[1]; // e.g. "2.0" (not "bundled (2.0.15 compatible)") |
|---|
| 472 | } else { |
|---|
| 473 | $cache_gd_version[1] = $gd_info['GD Version']; // e.g. "1.6.2 or higher" |
|---|
| 474 | $cache_gd_version[0] = (float) substr($gd_info['GD Version'], 0, 3); // e.g. "1.6" (not "1.6.2 or higher") |
|---|
| 475 | } |
|---|
| 476 | } |
|---|
| 477 | return $cache_gd_version[intval($fullstring)]; |
|---|
| 478 | } |
|---|
| 479 | |
|---|
| 480 | |
|---|
| 481 | function filesize_remote($remotefile, $timeout=10) { |
|---|
| 482 | $size = false; |
|---|
| 483 | $url = parse_url($remotefile); |
|---|
| 484 | if ($fp = @fsockopen($url['host'], ($url['port'] ? $url['port'] : 80), $errno, $errstr, $timeout)) { |
|---|
| 485 | fwrite($fp, 'HEAD '.@$url['path'].@$url['query'].' HTTP/1.0'."\r\n".'Host: '.@$url['host']."\r\n\r\n"); |
|---|
| 486 | if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.0', '>=')) { |
|---|
| 487 | stream_set_timeout($fp, $timeout); |
|---|
| 488 | } |
|---|
| 489 | while (!feof($fp)) { |
|---|
| 490 | $headerline = fgets($fp, 4096); |
|---|
| 491 | if (eregi('^Content-Length: (.*)', $headerline, $matches)) { |
|---|
| 492 | $size = intval($matches[1]); |
|---|
| 493 | break; |
|---|
| 494 | } |
|---|
| 495 | } |
|---|
| 496 | fclose ($fp); |
|---|
| 497 | } |
|---|
| 498 | return $size; |
|---|
| 499 | } |
|---|
| 500 | |
|---|
| 501 | |
|---|
| 502 | function filedate_remote($remotefile, $timeout=10) { |
|---|
| 503 | $date = false; |
|---|
| 504 | $url = parse_url($remotefile); |
|---|
| 505 | if ($fp = @fsockopen($url['host'], ($url['port'] ? $url['port'] : 80), $errno, $errstr, $timeout)) { |
|---|
| 506 | fwrite($fp, 'HEAD '.@$url['path'].@$url['query'].' HTTP/1.0'."\r\n".'Host: '.@$url['host']."\r\n\r\n"); |
|---|
| 507 | if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.0', '>=')) { |
|---|
| 508 | stream_set_timeout($fp, $timeout); |
|---|
| 509 | } |
|---|
| 510 | while (!feof($fp)) { |
|---|
| 511 | $headerline = fgets($fp, 4096); |
|---|
| 512 | if (eregi('^Last-Modified: (.*)', $headerline, $matches)) { |
|---|
| 513 | $date = strtotime($matches[1]) - date('Z'); |
|---|
| 514 | break; |
|---|
| 515 | } |
|---|
| 516 | } |
|---|
| 517 | fclose ($fp); |
|---|
| 518 | } |
|---|
| 519 | return $date; |
|---|
| 520 | } |
|---|
| 521 | |
|---|
| 522 | |
|---|
| 523 | function md5_file_safe($filename) { |
|---|
| 524 | // md5_file() doesn't exist in PHP < 4.2.0 |
|---|
| 525 | if (function_exists('md5_file')) { |
|---|
| 526 | return md5_file($filename); |
|---|
| 527 | } |
|---|
| 528 | if ($fp = @fopen($filename, 'rb')) { |
|---|
| 529 | $rawData = ''; |
|---|
| 530 | do { |
|---|
| 531 | $buffer = fread($fp, 8192); |
|---|
| 532 | $rawData .= $buffer; |
|---|
| 533 | } while (strlen($buffer) > 0); |
|---|
| 534 | fclose($fp); |
|---|
| 535 | return md5($rawData); |
|---|
| 536 | } |
|---|
| 537 | return false; |
|---|
| 538 | } |
|---|
| 539 | |
|---|
| 540 | |
|---|
| 541 | function nonempty_min() { |
|---|
| 542 | $arg_list = func_get_args(); |
|---|
| 543 | $acceptable = array(); |
|---|
| 544 | foreach ($arg_list as $arg) { |
|---|
| 545 | if ($arg) { |
|---|
| 546 | $acceptable[] = $arg; |
|---|
| 547 | } |
|---|
| 548 | } |
|---|
| 549 | return min($acceptable); |
|---|
| 550 | } |
|---|
| 551 | |
|---|
| 552 | |
|---|
| 553 | function LittleEndian2String($number, $minbytes=1) { |
|---|
| 554 | $intstring = ''; |
|---|
| 555 | while ($number > 0) { |
|---|
| 556 | $intstring = $intstring.chr($number & 255); |
|---|
| 557 | $number >>= 8; |
|---|
| 558 | } |
|---|
| 559 | return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT); |
|---|
| 560 | } |
|---|
| 561 | |
|---|
| 562 | function OneOfThese() { |
|---|
| 563 | // return the first useful (non-empty/non-zero/non-false) value from those passed |
|---|
| 564 | $arg_list = func_get_args(); |
|---|
| 565 | foreach ($arg_list as $key => $value) { |
|---|
| 566 | if ($value) { |
|---|
| 567 | return $value; |
|---|
| 568 | } |
|---|
| 569 | } |
|---|
| 570 | return false; |
|---|
| 571 | } |
|---|
| 572 | |
|---|
| 573 | function CaseInsensitiveInArray($needle, $haystack) { |
|---|
| 574 | $needle = strtolower($needle); |
|---|
| 575 | foreach ($haystack as $key => $value) { |
|---|
| 576 | if (is_array($value)) { |
|---|
| 577 | // skip? |
|---|
| 578 | } elseif ($needle == strtolower($value)) { |
|---|
| 579 | return true; |
|---|
| 580 | } |
|---|
| 581 | } |
|---|
| 582 | return false; |
|---|
| 583 | } |
|---|
| 584 | |
|---|
| 585 | function URLreadFsock($host, $file, &$errstr, $successonly=true, $port=80, $timeout=10) { |
|---|
| 586 | if (!function_exists('fsockopen') || phpthumb_functions::FunctionIsDisabled('fsockopen')) { |
|---|
| 587 | $errstr = 'fsockopen() unavailable'; |
|---|
| 588 | return false; |
|---|
| 589 | } |
|---|
| 590 | if ($fp = @fsockopen($host, 80, $errno, $errstr, $timeout)) { |
|---|
| 591 | $out = 'GET '.$file.' HTTP/1.0'."\r\n"; |
|---|
| 592 | $out .= 'Host: '.$host."\r\n"; |
|---|
| 593 | $out .= 'Connection: Close'."\r\n\r\n"; |
|---|
| 594 | fwrite($fp, $out); |
|---|
| 595 | |
|---|
| 596 | $isHeader = true; |
|---|
| 597 | $Data_header = ''; |
|---|
| 598 | $Data_body = ''; |
|---|
| 599 | $header_newlocation = ''; |
|---|
| 600 | while (!feof($fp)) { |
|---|
| 601 | $line = fgets($fp, 1024); |
|---|
| 602 | if ($isHeader) { |
|---|
| 603 | $Data_header .= $line; |
|---|
| 604 | } else { |
|---|
| 605 | $Data_body .= $line; |
|---|
| 606 | } |
|---|
| 607 | if (eregi('^HTTP/[\\.0-9]+ ([0-9]+) (.+)$', rtrim($line), $matches)) { |
|---|
| 608 | list($dummy, $errno, $errstr) = $matches; |
|---|
| 609 | $errno = intval($errno); |
|---|
| 610 | } elseif (eregi('^Location: (.*)$', rtrim($line), $matches)) { |
|---|
| 611 | $header_newlocation = $matches[1]; |
|---|
| 612 | } |
|---|
| 613 | if ($isHeader && ($line == "\r\n")) { |
|---|
| 614 | $isHeader = false; |
|---|
| 615 | if ($successonly) { |
|---|
| 616 | switch ($errno) { |
|---|
| 617 | case 200: |
|---|
| 618 | // great, continue |
|---|
| 619 | break; |
|---|
| 620 | |
|---|
| 621 | default: |
|---|
| 622 | $errstr = $errno.' '.$errstr.($header_newlocation ? '; Location: '.$header_newlocation : ''); |
|---|
| 623 | fclose($fp); |
|---|
| 624 | return false; |
|---|
| 625 | break; |
|---|
| 626 | } |
|---|
| 627 | } |
|---|
| 628 | } |
|---|
| 629 | } |
|---|
| 630 | fclose($fp); |
|---|
| 631 | return $Data_body; |
|---|
| 632 | } |
|---|
| 633 | return null; |
|---|
| 634 | } |
|---|
| 635 | |
|---|
| 636 | function CleanUpURLencoding($url, $queryseperator='&') { |
|---|
| 637 | if (!eregi('^http', $url)) { |
|---|
| 638 | return $url; |
|---|
| 639 | } |
|---|
| 640 | $parse_url = @parse_url($url); |
|---|
| 641 | $pathelements = explode('/', $parse_url['path']); |
|---|
| 642 | $CleanPathElements = array(); |
|---|
| 643 | $TranslationMatrix = array(' '=>'%20'); |
|---|
| 644 | foreach ($pathelements as $key => $pathelement) { |
|---|
| 645 | $CleanPathElements[] = strtr($pathelement, $TranslationMatrix); |
|---|
| 646 | } |
|---|
| 647 | foreach ($CleanPathElements as $key => $value) { |
|---|
| 648 | if (!$value) { |
|---|
| 649 | unset($CleanPathElements[$key]); |
|---|
| 650 | } |
|---|
| 651 | } |
|---|
| 652 | |
|---|
| 653 | $queries = explode($queryseperator, @$parse_url['query']); |
|---|
| 654 | $CleanQueries = array(); |
|---|
| 655 | foreach ($queries as $key => $query) { |
|---|
| 656 | @list($param, $value) = explode('=', $query); |
|---|
| 657 | $CleanQueries[] = strtr($param, $TranslationMatrix).($value ? '='.strtr($value, $TranslationMatrix) : ''); |
|---|
| 658 | } |
|---|
| 659 | foreach ($CleanQueries as $key => $value) { |
|---|
| 660 | if (!$value) { |
|---|
| 661 | unset($CleanQueries[$key]); |
|---|
| 662 | } |
|---|
| 663 | } |
|---|
| 664 | |
|---|
| 665 | $cleaned_url = $parse_url['scheme'].'://'; |
|---|
| 666 | $cleaned_url .= (@$parse_url['username'] ? $parse_url['host'].(@$parse_url['password'] ? ':'.$parse_url['password'] : '').'@' : ''); |
|---|
| 667 | $cleaned_url .= $parse_url['host']; |
|---|
| 668 | $cleaned_url .= '/'.implode('/', $CleanPathElements); |
|---|
| 669 | $cleaned_url .= (@$CleanQueries ? '?'.implode($queryseperator, $CleanQueries) : ''); |
|---|
| 670 | return $cleaned_url; |
|---|
| 671 | } |
|---|
| 672 | |
|---|
| 673 | function SafeURLread($url, &$error, $timeout=10, $followredirects=true) { |
|---|
| 674 | $error = ''; |
|---|
| 675 | |
|---|
| 676 | $parsed_url = @parse_url($url); |
|---|
| 677 | $alreadyLookedAtURLs[trim($url)] = true; |
|---|
| 678 | do { |
|---|
| 679 | $rawData = phpthumb_functions::URLreadFsock(@$parsed_url['host'], @$parsed_url['path'].'?'.@$parsed_url['query'], $errstr, true, (@$parsed_url['port'] ? @$parsed_url['port'] : 80), $timeout); |
|---|
| 680 | if (eregi('302 Found; Location\\: (http.*)', $errstr, $matches)) { |
|---|
| 681 | $matches[1] = trim(@$matches[1]); |
|---|
| 682 | if ($alreadyLookedAtURLs[$matches[1]]) { |
|---|
| 683 | break; |
|---|
| 684 | } |
|---|
| 685 | $alreadyLookedAtURLs[$matches[1]] = true; |
|---|
| 686 | $parsed_url = @parse_url($matches[1]); |
|---|
| 687 | } else { |
|---|
| 688 | break; |
|---|
| 689 | } |
|---|
| 690 | } while (true); |
|---|
| 691 | $error .= 'Error opening "'.$url.'":'."\n\n".$errstr; |
|---|
| 692 | if ($rawData === false) { |
|---|
| 693 | return false; |
|---|
| 694 | } elseif ($rawData === null) { |
|---|
| 695 | // fall through |
|---|
| 696 | } else { |
|---|
| 697 | return $rawData; |
|---|
| 698 | } |
|---|
| 699 | |
|---|
| 700 | if (function_exists('curl_version') && !phpthumb_functions::FunctionIsDisabled('curl_exec')) { |
|---|
| 701 | $ch = curl_init(); |
|---|
| 702 | curl_setopt($ch, CURLOPT_URL, $url); |
|---|
| 703 | curl_setopt($ch, CURLOPT_HEADER, false); |
|---|
| 704 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
|---|
| 705 | curl_setopt($ch, CURLOPT_BINARYTRANSFER, true); |
|---|
| 706 | curl_setopt($ch, CURLOPT_TIMEOUT, $timeout); |
|---|
| 707 | $rawData = curl_exec($ch); |
|---|
| 708 | curl_close($ch); |
|---|
| 709 | if (strlen($rawData) > 0) { |
|---|
| 710 | return $rawData; |
|---|
| 711 | } |
|---|
| 712 | $error .= 'CURL available but returned no data; '; |
|---|
| 713 | } else { |
|---|
| 714 | $error .= 'CURL unavailable; '; |
|---|
| 715 | } |
|---|
| 716 | |
|---|
| 717 | $BrokenURLfopenPHPversions = array('4.4.2'); |
|---|
| 718 | if (in_array(phpversion(), $BrokenURLfopenPHPversions)) { |
|---|
| 719 | $error .= 'fopen(URL) broken in PHP v'.phpversion().'; '; |
|---|
| 720 | } elseif (@ini_get('allow_url_fopen')) { |
|---|
| 721 | $rawData = ''; |
|---|
| 722 | ob_start(); |
|---|
| 723 | if ($fp = fopen($url, 'rb')) { |
|---|
| 724 | do { |
|---|
| 725 | $buffer = fread($fp, 8192); |
|---|
| 726 | $rawData .= $buffer; |
|---|
| 727 | } while (strlen($buffer) > 0); |
|---|
| 728 | fclose($fp); |
|---|
| 729 | } else { |
|---|
| 730 | $error .= trim(strip_tags(ob_get_contents())); |
|---|
| 731 | } |
|---|
| 732 | ob_end_clean(); |
|---|
| 733 | if (!$error) { |
|---|
| 734 | return $rawData; |
|---|
| 735 | } |
|---|
| 736 | $error .= '; "allow_url_fopen" enabled but returned no data; '; |
|---|
| 737 | } else { |
|---|
| 738 | $error .= '"allow_url_fopen" disabled; '; |
|---|
| 739 | } |
|---|
| 740 | |
|---|
| 741 | return false; |
|---|
| 742 | } |
|---|
| 743 | |
|---|
| 744 | function EnsureDirectoryExists($dirname) { |
|---|
| 745 | $directory_elements = explode(DIRECTORY_SEPARATOR, $dirname); |
|---|
| 746 | $startoffset = (!$directory_elements[0] ? 2 : 1); // unix with leading "/" then start with 2nd element; Windows with leading "c:\" then start with 1st element |
|---|
| 747 | $open_basedirs = explode(':', ini_get('open_basedir')); |
|---|
| 748 | foreach ($open_basedirs as $key => $open_basedir) { |
|---|
| 749 | if (ereg('^'.preg_quote($open_basedir), $dirname) && (strlen($dirname) > strlen($open_basedir))) { |
|---|
| 750 | $startoffset = count(explode(DIRECTORY_SEPARATOR, $open_basedir)); |
|---|
| 751 | break; |
|---|
| 752 | } |
|---|
| 753 | } |
|---|
| 754 | $i = $startoffset; |
|---|
| 755 | $endoffset = count($directory_elements); |
|---|
| 756 | for ($i = $startoffset; $i <= $endoffset; $i++) { |
|---|
| 757 | $test_directory = implode(DIRECTORY_SEPARATOR, array_slice($directory_elements, 0, $i)); |
|---|
| 758 | if (!$test_directory) { |
|---|
| 759 | continue; |
|---|
| 760 | } |
|---|
| 761 | if (!@is_dir($test_directory)) { |
|---|
| 762 | if (@file_exists($test_directory)) { |
|---|
| 763 | // directory name already exists as a file |
|---|
| 764 | return false; |
|---|
| 765 | } |
|---|
| 766 | @mkdir($test_directory, 0755); |
|---|
| 767 | @chmod($test_directory, 0755); |
|---|
| 768 | if (!@is_dir($test_directory) || !@is_writeable($test_directory)) { |
|---|
| 769 | return false; |
|---|
| 770 | } |
|---|
| 771 | } |
|---|
| 772 | } |
|---|
| 773 | return true; |
|---|
| 774 | } |
|---|
| 775 | |
|---|
| 776 | |
|---|
| 777 | function GetAllFilesInSubfolders($dirname) { |
|---|
| 778 | $AllFiles = array(); |
|---|
| 779 | $dirname = rtrim(realpath($dirname), '/\\'); |
|---|
| 780 | if ($dirhandle = @opendir($dirname)) { |
|---|
| 781 | while ($file = readdir($dirhandle)) { |
|---|
| 782 | $fullfilename = $dirname.DIRECTORY_SEPARATOR.$file; |
|---|
| 783 | if (is_file($fullfilename)) { |
|---|
| 784 | $AllFiles[] = $fullfilename; |
|---|
| 785 | } elseif (is_dir($fullfilename)) { |
|---|
| 786 | if (($file == '.') || ($file == '..')) { |
|---|
| 787 | continue; |
|---|
| 788 | } |
|---|
| 789 | $subfiles = phpthumb_functions::GetAllFilesInSubfolders($fullfilename); |
|---|
| 790 | foreach ($subfiles as $filename) { |
|---|
| 791 | $AllFiles[] = $filename; |
|---|
| 792 | } |
|---|
| 793 | } else { |
|---|
| 794 | // ignore? |
|---|
| 795 | } |
|---|
| 796 | } |
|---|
| 797 | closedir($dirhandle); |
|---|
| 798 | } |
|---|
| 799 | sort($AllFiles); |
|---|
| 800 | return array_unique($AllFiles); |
|---|
| 801 | } |
|---|
| 802 | |
|---|
| 803 | |
|---|
| 804 | function SanitizeFilename($filename) { |
|---|
| 805 | $filename = ereg_replace('[^'.preg_quote(' !#$%^()+,-.;<>=@[]_{}').'a-zA-Z0-9]', '_', $filename); |
|---|
| 806 | if (phpthumb_functions::version_compare_replacement(phpversion(), '4.1.0', '>=')) { |
|---|
| 807 | $filename = trim($filename, '.'); |
|---|
| 808 | } |
|---|
| 809 | return $filename; |
|---|
| 810 | } |
|---|
| 811 | |
|---|
| 812 | } |
|---|
| 813 | |
|---|
| 814 | |
|---|
| 815 | ////////////// END: class phpthumb_functions ////////////// |
|---|
| 816 | |
|---|
| 817 | |
|---|
| 818 | if (!function_exists('gd_info')) { |
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| 819 | // built into PHP v4.3.0+ (with bundled GD2 library) |
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| 820 | function gd_info() { |
|---|
| 821 | static $gd_info = array(); |
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| 822 | if (empty($gd_info)) { |
|---|
| 823 | // based on code by johnschaefer at gmx dot de |
|---|
| 824 | // from PHP help on gd_info() |
|---|
| 825 | $gd_info = array( |
|---|
| 826 | 'GD Version' => '', |
|---|
| 827 | 'FreeType Support' => false, |
|---|
| 828 | 'FreeType Linkage' => '', |
|---|
| 829 | 'T1Lib Support' => false, |
|---|
| 830 | 'GIF Read Support' => false, |
|---|
| 831 | 'GIF Create Support' => false, |
|---|
| 832 | 'JPG Support' => false, |
|---|
| 833 | 'PNG Support' => false, |
|---|
| 834 | 'WBMP Support' => false, |
|---|
| 835 | 'XBM Support' => false |
|---|
| 836 | ); |
|---|
| 837 | $phpinfo_array = phpthumb_functions::phpinfo_array(); |
|---|
| 838 | foreach ($phpinfo_array as $line) { |
|---|
| 839 | $line = trim(strip_tags($line)); |
|---|
| 840 | foreach ($gd_info as $key => $value) { |
|---|
| 841 | //if (strpos($line, $key) !== false) { |
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| 842 | if (strpos($line, $key) === 0) { |
|---|
| 843 | $newvalue = trim(str_replace($key, '', $line)); |
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| 844 | $gd_info[$key] = $newvalue; |
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| 845 | } |
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| 846 | } |
|---|
| 847 | } |
|---|
| 848 | if (empty($gd_info['GD Version'])) { |
|---|
| 849 | // probable cause: "phpinfo() disabled for security reasons" |
|---|
| 850 | if (function_exists('ImageTypes')) { |
|---|
| 851 | $imagetypes = ImageTypes(); |
|---|
| 852 | if ($imagetypes & IMG_PNG) { |
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| 853 | $gd_info['PNG Support'] = true; |
|---|
| 854 | } |
|---|
| 855 | if ($imagetypes & IMG_GIF) { |
|---|
| 856 | $gd_info['GIF Create Support'] = true; |
|---|
| 857 | } |
|---|
| 858 | if ($imagetypes & IMG_JPG) { |
|---|
| 859 | $gd_info['JPG Support'] = true; |
|---|
| 860 | } |
|---|
| 861 | if ($imagetypes & IMG_WBMP) { |
|---|
| 862 | $gd_info['WBMP Support'] = true; |
|---|
| 863 | } |
|---|
| 864 | } |
|---|
| 865 | // to determine capability of GIF creation, try to use ImageCreateFromGIF on a 1px GIF |
|---|
| 866 | if (function_exists('ImageCreateFromGIF')) { |
|---|
| 867 | if ($tempfilename = phpthumb::phpThumb_tempnam()) { |
|---|
| 868 | if ($fp_tempfile = @fopen($tempfilename, 'wb')) { |
|---|
| 869 | fwrite($fp_tempfile, base64_decode('R0lGODlhAQABAIAAAH//AP///ywAAAAAAQABAAACAUQAOw==')); // very simple 1px GIF file base64-encoded as string |
|---|
| 870 | fclose($fp_tempfile); |
|---|
| 871 | |
|---|
| 872 | // if we can convert the GIF file to a GD image then GIF create support must be enabled, otherwise it's not |
|---|
| 873 | $gd_info['GIF Read Support'] = (bool) @ImageCreateFromGIF($tempfilename); |
|---|
| 874 | } |
|---|
| 875 | unlink($tempfilename); |
|---|
| 876 | } |
|---|
| 877 | } |
|---|
| 878 | if (function_exists('ImageCreateTrueColor') && @ImageCreateTrueColor(1, 1)) { |
|---|
| 879 | $gd_info['GD Version'] = '2.0.1 or higher (assumed)'; |
|---|
| 880 | } elseif (function_exists('ImageCreate') && @ImageCreate(1, 1)) { |
|---|
| 881 | $gd_info['GD Version'] = '1.6.0 or higher (assumed)'; |
|---|
| 882 | } |
|---|
| 883 | } |
|---|
| 884 | } |
|---|
| 885 | return $gd_info; |
|---|
| 886 | } |
|---|
| 887 | } |
|---|
| 888 | |
|---|
| 889 | |
|---|
| 890 | if (!function_exists('is_executable')) { |
|---|
| 891 | // in PHP v3+, but v5.0+ for Windows |
|---|
| 892 | function is_executable($filename) { |
|---|
| 893 | // poor substitute, but better than nothing |
|---|
| 894 | return file_exists($filename); |
|---|
| 895 | } |
|---|
| 896 | } |
|---|
| 897 | |
|---|
| 898 | |
|---|
| 899 | if (!function_exists('preg_quote')) { |
|---|
| 900 | // included in PHP v3.0.9+, but may be unavailable if not compiled in |
|---|
| 901 | function preg_quote($string, $delimiter='\\') { |
|---|
| 902 | static $preg_quote_array = array(); |
|---|
| 903 | if (empty($preg_quote_array)) { |
|---|
| 904 | $escapeables = '.\\+*?[^]$(){}=!<>|:'; |
|---|
| 905 | for ($i = 0; $i < strlen($escapeables); $i++) { |
|---|
| 906 | $strtr_preg_quote[$escapeables{$i}] = $delimiter.$escapeables{$i}; |
|---|
| 907 | } |
|---|
| 908 | } |
|---|
| 909 | return strtr($string, $strtr_preg_quote); |
|---|
| 910 | } |
|---|
| 911 | } |
|---|
| 912 | |
|---|
| 913 | if (!function_exists('file_get_contents')) { |
|---|
| 914 | // included in PHP v4.3.0+ |
|---|
| 915 | function file_get_contents($filename) { |
|---|
| 916 | if (eregi('^(f|ht)tp\://', $filename)) { |
|---|
| 917 | return SafeURLread($filename, $error); |
|---|
| 918 | } |
|---|
| 919 | if ($fp = @fopen($filename, 'rb')) { |
|---|
| 920 | $rawData = ''; |
|---|
| 921 | do { |
|---|
| 922 | $buffer = fread($fp, 8192); |
|---|
| 923 | $rawData .= $buffer; |
|---|
| 924 | } while (strlen($buffer) > 0); |
|---|
| 925 | fclose($fp); |
|---|
| 926 | return $rawData; |
|---|
| 927 | } |
|---|
| 928 | return false; |
|---|
| 929 | } |
|---|
| 930 | } |
|---|
| 931 | |
|---|
| 932 | |
|---|
| 933 | if (!function_exists('file_put_contents')) { |
|---|
| 934 | // included in PHP v5.0.0+ |
|---|
| 935 | function file_put_contents($filename, $filedata) { |
|---|
| 936 | if ($fp = @fopen($filename, 'wb')) { |
|---|
| 937 | fwrite($fp, $filedata); |
|---|
| 938 | fclose($fp); |
|---|
| 939 | return true; |
|---|
| 940 | } |
|---|
| 941 | return false; |
|---|
| 942 | } |
|---|
| 943 | } |
|---|
| 944 | |
|---|
| 945 | if (!function_exists('imagealphablending')) { |
|---|
| 946 | // built-in function requires PHP v4.0.6+ *and* GD v2.0.1+ |
|---|
| 947 | function imagealphablending(&$img, $blendmode=true) { |
|---|
| 948 | // do nothing, this function is declared here just to |
|---|
| 949 | // prevent runtime errors if GD2 is not available |
|---|
| 950 | return true; |
|---|
| 951 | } |
|---|
| 952 | } |
|---|
| 953 | |
|---|
| 954 | if (!function_exists('imagesavealpha')) { |
|---|
| 955 | // built-in function requires PHP v4.3.2+ *and* GD v2.0.1+ |
|---|
| 956 | function imagesavealpha(&$img, $blendmode=true) { |
|---|
| 957 | // do nothing, this function is declared here just to |
|---|
| 958 | // prevent runtime errors if GD2 is not available |
|---|
| 959 | return true; |
|---|
| 960 | } |
|---|
| 961 | } |
|---|
| 962 | |
|---|
| 963 | ?> |
|---|