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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 2010-06-05 |
| 13 | */ |
| 14 | |
| 15 | declare(strict_types=1); |
| 16 | |
| 17 | namespace Karla; |
| 18 | |
| 19 | /** |
| 20 | * Karla core class |
| 21 | * |
| 22 | * @category Utility |
| 23 | * @author Johannes Skov Frandsen <jsf@greenoak.dk> |
| 24 | * @license http://www.opensource.org/licenses/mit-license.php MIT |
| 25 | * @link https://github.com/localgod/karla Karla |
| 26 | */ |
| 27 | class Karla |
| 28 | { |
| 29 | /** |
| 30 | * Path to imagemagick binary |
| 31 | * |
| 32 | * @var string $binPath imagemagick binary |
| 33 | */ |
| 34 | private string $binPath; |
| 35 | |
| 36 | /** |
| 37 | * Cache controller |
| 38 | * |
| 39 | * @var Cache |
| 40 | */ |
| 41 | private Cache|null $cache; |
| 42 | |
| 43 | /** |
| 44 | * ImageMagick major version |
| 45 | * |
| 46 | * @var int|null |
| 47 | */ |
| 48 | private int|null $version = null; |
| 49 | |
| 50 | /** |
| 51 | * Get an instance of Karla. |
| 52 | * |
| 53 | * @param string $binPath Path to ImageMagick binaries (optional) |
| 54 | * @param Cache|null $cache Cache controller (optional) |
| 55 | * @param int|null $version ImageMagick major version (optional, skips auto-detection when provided) |
| 56 | * |
| 57 | * @deprecated Since 1.2.0, use `new Karla($binPath, $cache, $version)` instead. Will be removed in 2.0.0. |
| 58 | * |
| 59 | * @throws \RuntimeException |
| 60 | */ |
| 61 | public static function perform( |
| 62 | string $binPath = '/opt/local/bin/', |
| 63 | Cache|null $cache = null, |
| 64 | int|null $version = null |
| 65 | ): Karla { |
| 66 | try { |
| 67 | return new self($binPath, $cache, $version); |
| 68 | } catch (\InvalidArgumentException $e) { |
| 69 | throw new \RuntimeException($e->getMessage() . ' (' . $binPath . ')', 0, $e); |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Construct a new Karla object. |
| 75 | * |
| 76 | * @param string $binPath Path to ImageMagick binaries |
| 77 | * @param Cache|null $cache Cache controller |
| 78 | * @param int|null $version ImageMagick major version (optional, skips auto-detection when provided) |
| 79 | * |
| 80 | * @throws \InvalidArgumentException if path for ImageMagick is invalid |
| 81 | */ |
| 82 | public function __construct(string $binPath, Cache|null $cache = null, int|null $version = null) |
| 83 | { |
| 84 | if (! file_exists($binPath)) { |
| 85 | throw new \InvalidArgumentException('Bin path not found'); |
| 86 | } |
| 87 | |
| 88 | if ($version !== null) { |
| 89 | $this->version = $version; |
| 90 | } else { |
| 91 | $this->detectVersion($binPath); |
| 92 | } |
| 93 | |
| 94 | // Set binPath appropriately for the OS |
| 95 | if (Platform::isWindows()) { |
| 96 | // On Windows, just use the direct path |
| 97 | $this->binPath = rtrim($binPath, '/\\') . '/'; |
| 98 | } else { |
| 99 | // On Unix, use export PATH |
| 100 | $this->binPath = 'export PATH=$PATH:' . $binPath . ';'; |
| 101 | } |
| 102 | |
| 103 | $this->cache = $cache; |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Detect the installed ImageMagick version and set $this->version. |
| 108 | * |
| 109 | * Results are cached statically per bin path to avoid repeated shell_exec calls. |
| 110 | * |
| 111 | * @param string $binPath Path to ImageMagick binaries |
| 112 | * |
| 113 | * @throws \InvalidArgumentException if ImageMagick cannot be located at the given path |
| 114 | */ |
| 115 | private function detectVersion(string $binPath): void |
| 116 | { |
| 117 | /** @var array<string, int|null> $versionCache */ |
| 118 | static $versionCache = []; |
| 119 | |
| 120 | if (isset($versionCache[$binPath])) { |
| 121 | $this->version = $versionCache[$binPath]; |
| 122 | return; |
| 123 | } |
| 124 | |
| 125 | $magickBin = Platform::getBinary('magick'); |
| 126 | $convertBin = Platform::getBinary('convert'); |
| 127 | |
| 128 | $versionOutput = ''; |
| 129 | |
| 130 | // Try ImageMagick 7 first (magick command) |
| 131 | if (file_exists($binPath . $magickBin)) { |
| 132 | $versionOutput = shell_exec(escapeshellarg($binPath . $magickBin) . ' -version'); |
| 133 | if ($versionOutput && stripos($versionOutput, 'ImageMagick') !== false) { |
| 134 | // Extract major version (e.g., "Version: ImageMagick 7.1.2" -> 7) |
| 135 | if (preg_match('/ImageMagick (\d+)/', $versionOutput, $matches)) { |
| 136 | $this->version = (int)$matches[1]; |
| 137 | } |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | // Fallback to ImageMagick 6 (convert command) |
| 142 | if (empty($versionOutput) && file_exists($binPath . $convertBin)) { |
| 143 | $versionOutput = shell_exec(escapeshellarg($binPath . $convertBin) . ' -version'); |
| 144 | if ($versionOutput && stripos($versionOutput, 'ImageMagick') !== false) { |
| 145 | if (preg_match('/ImageMagick (\d+)/', $versionOutput, $matches)) { |
| 146 | $this->version = (int)$matches[1]; |
| 147 | } else { |
| 148 | $this->version = 6; // Assume v6 if version not found but convert exists |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | if (empty($versionOutput)) { |
| 154 | throw new \InvalidArgumentException('ImageMagick could not be located at specified path'); |
| 155 | } |
| 156 | |
| 157 | $versionCache[$binPath] = $this->version; |
| 158 | } |
| 159 | |
| 160 | /** |
| 161 | * Run a raw ImageMagick command |
| 162 | * |
| 163 | * Karla was never intended to wrap all of the functionality of ImageMagick |
| 164 | * and likely never will, you will from time to time need to write arguments |
| 165 | * to ImageMagick like you would have done directly in the console. |
| 166 | * |
| 167 | * @param string $program ImageMagick tool to use |
| 168 | * @param string $arguments Arguments for the tool |
| 169 | * |
| 170 | * @throws \InvalidArgumentException if you try to run a non ImageMagick program |
| 171 | */ |
| 172 | public function raw(string $program, string $arguments = ""): string |
| 173 | { |
| 174 | if (! Program\ImageMagick::validProgram($program)) { |
| 175 | throw new \InvalidArgumentException('ImageMagick could not be located at specified path'); |
| 176 | } |
| 177 | $bin = Platform::getBinary($program); |
| 178 | // For ImageMagick 7+, prepend with magick command |
| 179 | if ($this->version !== null && $this->version >= 7) { |
| 180 | $magickBin = Platform::getBinary(Program\ImageMagick::IMAGEMAGICK_MAGICK); |
| 181 | $magick = Platform::getExecutable($this->binPath, $magickBin); |
| 182 | $result = shell_exec($magick . ' ' . $program . ' ' . $arguments); |
| 183 | } else { |
| 184 | $result = shell_exec(Platform::getExecutable($this->binPath, $bin) . ' ' . $arguments); |
| 185 | } |
| 186 | |
| 187 | return $result !== null && $result !== false ? $result : ''; |
| 188 | } |
| 189 | |
| 190 | /** |
| 191 | * Start a convert operation |
| 192 | */ |
| 193 | public function convert(): Program\Convert |
| 194 | { |
| 195 | $bin = Platform::getBinary(Program\ImageMagick::IMAGEMAGICK_CONVERT); |
| 196 | |
| 197 | return new Program\Convert($this->binPath, $bin, $this->cache, $this->version); |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Start an identify operation |
| 202 | */ |
| 203 | public function identify(): Program\Identify |
| 204 | { |
| 205 | $bin = Platform::getBinary(Program\ImageMagick::IMAGEMAGICK_IDENTIFY); |
| 206 | |
| 207 | return new Program\Identify($this->binPath, $bin, $this->cache, $this->version); |
| 208 | } |
| 209 | |
| 210 | /** |
| 211 | * Start a composite operation |
| 212 | */ |
| 213 | public function composite(): Program\Composite |
| 214 | { |
| 215 | $bin = Platform::getBinary(Program\ImageMagick::IMAGEMAGICK_COMPOSITE); |
| 216 | |
| 217 | return new Program\Composite($this->binPath, $bin, $this->cache, $this->version); |
| 218 | } |
| 219 | } |