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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Karla ImageMagick wrapper library |
| 5 | * |
| 6 | * PHP Version 8.0< |
| 7 | * |
| 8 | * @category Utility |
| 9 | * @author Johannes Skov Frandsen <jsf@greenoak.dk> |
| 10 | * @license http://www.opensource.org/licenses/mit-license.php MIT |
| 11 | * @link https://github.com/localgod/karla Karla |
| 12 | * @since 2013-05-26 |
| 13 | */ |
| 14 | |
| 15 | declare(strict_types=1); |
| 16 | |
| 17 | namespace Karla; |
| 18 | |
| 19 | use Karla\Platform; |
| 20 | use Karla\Program; |
| 21 | use Karla\Program\Identify; |
| 22 | use Karla\Program\Convert; |
| 23 | use Karla\Program\ImageMagick; |
| 24 | use Karla\Program\Composite; |
| 25 | |
| 26 | /** |
| 27 | * Class for querying for supported features |
| 28 | * |
| 29 | * @category Utility |
| 30 | * @author Johannes Skov Frandsen <jsf@greenoak.dk> |
| 31 | * @license http://www.opensource.org/licenses/mit-license.php MIT |
| 32 | * @link https://github.com/localgod/karla Karla |
| 33 | */ |
| 34 | class Support |
| 35 | { |
| 36 | /** |
| 37 | * Get the appropriate binary for -list commands. |
| 38 | * For ImageMagick 7, use 'magick'. |
| 39 | * For ImageMagick 6, use 'convert' or 'identify' (Composite doesn't support -list). |
| 40 | * |
| 41 | * @param Program $program Program instance to extract binary path from |
| 42 | */ |
| 43 | private static function getListBinary(Program $program): string |
| 44 | { |
| 45 | $binary = $program->getBinary(); |
| 46 | |
| 47 | // For Composite programs in IM6, we need to use 'convert' instead |
| 48 | // because 'composite' doesn't support -list commands |
| 49 | if ($program instanceof Composite) { |
| 50 | // If binary contains 'magick', it's IM7 - use as-is |
| 51 | if (strpos($binary, 'magick') !== false) { |
| 52 | return $binary; |
| 53 | } |
| 54 | |
| 55 | // IM6 - replace composite with convert |
| 56 | // Get the directory and construct convert path |
| 57 | $dirPath = dirname($binary); |
| 58 | $convertBin = Platform::getBinary('convert'); |
| 59 | |
| 60 | $result = $dirPath . DIRECTORY_SEPARATOR . $convertBin; |
| 61 | |
| 62 | // If convert doesn't exist, try using the original binary anyway |
| 63 | // (it might work in some configurations) |
| 64 | if (!file_exists($result) && !is_executable($result)) { |
| 65 | return $binary; |
| 66 | } |
| 67 | |
| 68 | return $result; |
| 69 | } |
| 70 | |
| 71 | // For Convert and Identify, use their binary as-is (they support -list) |
| 72 | return $binary; |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Check if a gravity is supported by ImageMagick. |
| 77 | * |
| 78 | * @param Program $program Program to check |
| 79 | * @param string $gravity Gravity to check |
| 80 | * |
| 81 | * @throws \BadMethodCallException if called in a wrong context |
| 82 | */ |
| 83 | public static function gravity(Program $program, string $gravity): bool |
| 84 | { |
| 85 | if (! ($program instanceof Convert) && ! ($program instanceof Composite)) { |
| 86 | $message = 'This method can not be used in this context. (' . get_class($program) . ')'; |
| 87 | throw new \BadMethodCallException($message); |
| 88 | } |
| 89 | |
| 90 | // Use the appropriate binary for -list commands |
| 91 | // Redirect stderr to stdout to capture all output |
| 92 | $command = self::getListBinary($program) . ' -list gravity 2>&1'; |
| 93 | |
| 94 | $gravities = shell_exec($command); |
| 95 | |
| 96 | // If command fails, try without stderr redirect as fallback |
| 97 | if ($gravities === null || $gravities === false || trim($gravities) === '') { |
| 98 | $command = self::getListBinary($program) . ' -list gravity'; |
| 99 | $gravities = shell_exec($command); |
| 100 | } |
| 101 | |
| 102 | if ($gravities === null || $gravities === false || trim($gravities) === '') { |
| 103 | return false; |
| 104 | } |
| 105 | |
| 106 | $gravities = explode("\n", $gravities); |
| 107 | $count = count($gravities); |
| 108 | for ($i = 0; $i < $count; $i++) { |
| 109 | $gravities[$i] = trim(strtolower($gravities[$i])); |
| 110 | } |
| 111 | |
| 112 | return in_array(strtolower(trim($gravity)), $gravities); |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Check if an image type is supported by the ImageMagick program. |
| 117 | * |
| 118 | * @param Program $program Program to check |
| 119 | * @param string $type Type to check |
| 120 | */ |
| 121 | public static function imageTypes(Program $program, string $type): bool |
| 122 | { |
| 123 | if (! ($program instanceof Convert) && ! ($program instanceof Identify)) { |
| 124 | $message = 'This method can not be used in this context. (' . get_class($program) . ')'; |
| 125 | throw new \BadMethodCallException($message); |
| 126 | } |
| 127 | |
| 128 | // Use the appropriate binary for -list commands |
| 129 | // Redirect stderr to stdout to capture all output |
| 130 | $command = self::getListBinary($program) . ' -list type 2>&1'; |
| 131 | |
| 132 | $types = shell_exec($command); |
| 133 | if ($types === null || $types === false || trim($types) === '') { |
| 134 | return false; |
| 135 | } |
| 136 | |
| 137 | $types = explode("\n", $types); |
| 138 | $count = count($types); |
| 139 | for ($i = 0; $i < $count; $i++) { |
| 140 | $types[$i] = trim(strtolower($types[$i])); |
| 141 | } |
| 142 | |
| 143 | return in_array(strtolower(trim($type)), $types); |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Check if a colorspace is supported by the ImageMagick program. |
| 148 | * |
| 149 | * @param Program $program Program to check |
| 150 | * @param string $colorSpace Colorspace to check |
| 151 | */ |
| 152 | public static function colorSpace(Program $program, string $colorSpace): bool |
| 153 | { |
| 154 | if (! ($program instanceof Convert) && ! ($program instanceof Identify)) { |
| 155 | $message = 'This method can not be used in this context. (' . get_class($program) . ')'; |
| 156 | throw new \BadMethodCallException($message); |
| 157 | } |
| 158 | |
| 159 | // Use the appropriate binary for -list commands |
| 160 | // Redirect stderr to stdout to capture all output |
| 161 | $command = self::getListBinary($program) . ' -list colorspace 2>&1'; |
| 162 | |
| 163 | $colorspaces = shell_exec($command); |
| 164 | if ($colorspaces === null || $colorspaces === false || trim($colorspaces) === '') { |
| 165 | // Command failed, return false |
| 166 | return false; |
| 167 | } |
| 168 | |
| 169 | $colorspaces = explode("\n", $colorspaces); |
| 170 | $count = count($colorspaces); |
| 171 | for ($i = 0; $i < $count; $i++) { |
| 172 | $colorspaces[$i] = trim(strtolower($colorspaces[$i])); |
| 173 | } |
| 174 | |
| 175 | return in_array(strtolower(trim($colorSpace)), $colorspaces); |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Check if a method is supported by ImageMagick. |
| 180 | * |
| 181 | * @param Program $program Program to check |
| 182 | * @param string $method Method to check |
| 183 | * |
| 184 | * @throws \BadMethodCallException if called in a wrong context |
| 185 | */ |
| 186 | public static function layerMethod(Program $program, string $method): bool |
| 187 | { |
| 188 | if (! ($program instanceof Convert) && ! ($program instanceof Identify)) { |
| 189 | throw new \BadMethodCallException('This method can not be used in this context'); |
| 190 | } |
| 191 | |
| 192 | // Use the appropriate binary for -list commands |
| 193 | // Redirect stderr to stdout to capture all output |
| 194 | $command = self::getListBinary($program) . ' -list layers 2>&1'; |
| 195 | |
| 196 | $methods = shell_exec($command); |
| 197 | if ($methods === null || $methods === false || trim($methods) === '') { |
| 198 | return false; |
| 199 | } |
| 200 | |
| 201 | $methods = explode("\n", $methods); |
| 202 | $count = count($methods); |
| 203 | for ($i = 0; $i < $count; $i++) { |
| 204 | $methods[$i] = trim(strtolower($methods[$i])); |
| 205 | } |
| 206 | |
| 207 | return in_array(strtolower(trim($method)), $methods); |
| 208 | } |
| 209 | |
| 210 | /** |
| 211 | * Check if a format is supported by ImageMagick. |
| 212 | * |
| 213 | * @param Program $program Program to check |
| 214 | * @param string $format Format to check |
| 215 | * |
| 216 | * @throws \BadMethodCallException if called in a wrong context |
| 217 | */ |
| 218 | public static function supportedFormat(Program $program, string $format): bool |
| 219 | { |
| 220 | if (! ($program instanceof Convert) && ! ($program instanceof Identify)) { |
| 221 | throw new \BadMethodCallException('This method can not be used in this context'); |
| 222 | } |
| 223 | |
| 224 | // Use the appropriate binary for -list commands |
| 225 | // Redirect stderr to stdout to capture all output |
| 226 | $command = self::getListBinary($program) . ' -list format 2>&1'; |
| 227 | |
| 228 | $formats = shell_exec($command); |
| 229 | if ($formats === null || $formats === false || trim($formats) === '') { |
| 230 | return false; |
| 231 | } |
| 232 | |
| 233 | $formats = explode("\n", $formats); |
| 234 | $count = count($formats); |
| 235 | for ($i = 0; $i < $count; $i++) { |
| 236 | $matches = []; |
| 237 | preg_match("/^[\s]*[A-Z0-9]+/", $formats[$i], $matches); |
| 238 | if (isset($matches[0]) && ! strpos($matches[0], 'Format')) { |
| 239 | $formats[$i] = strtolower(trim($matches[0])); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | return in_array(strtolower(trim($format)), $formats); |
| 244 | } |
| 245 | } |