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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 | * Instance of a imagmagick object. |
| 45 | * |
| 46 | * @var Karla $instance imagmagick object. |
| 47 | */ |
| 48 | private static $instance; |
| 49 | |
| 50 | /** |
| 51 | * Get a instance of Karla. |
| 52 | * |
| 53 | * @param string $binPath |
| 54 | * Path to imagemagic binaries (optional) |
| 55 | * @param Cache|null $cache |
| 56 | * Cache controller (optional) |
| 57 | * |
| 58 | * @return Karla |
| 59 | * @throws \InvalidArgumentException |
| 60 | */ |
| 61 | public static function perform(string $binPath = '/opt/local/bin/', Cache|null $cache = null): Karla |
| 62 | { |
| 63 | if (! (Karla::$instance instanceof Karla)) { |
| 64 | try { |
| 65 | Karla::$instance = new Karla($binPath, $cache); |
| 66 | } catch (\InvalidArgumentException $e) { |
| 67 | throw new \RuntimeException($e->getMessage() . '(' . $binPath . ')'); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | return Karla::$instance; |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * Construct a new Karla object. |
| 76 | * |
| 77 | * @param string $binPath |
| 78 | * Path to imagemagic binaries |
| 79 | * @param Cache $cache |
| 80 | * Cache controller |
| 81 | * |
| 82 | * @throws \InvalidArgumentException if path for imagemagick is invalid |
| 83 | */ |
| 84 | private function __construct(string $binPath, Cache|null $cache) |
| 85 | { |
| 86 | if (! file_exists($binPath)) { |
| 87 | throw new \InvalidArgumentException('Bin path not found'); |
| 88 | } |
| 89 | |
| 90 | if (shell_exec($binPath . 'convert -version | grep ImageMagick') == "") { |
| 91 | throw new \InvalidArgumentException('ImageMagick could not be located at specified path'); |
| 92 | } |
| 93 | $this->binPath = 'export PATH=$PATH:' . $binPath . ';'; |
| 94 | $this->cache = $cache; |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Run a raw ImageMagick command |
| 99 | * |
| 100 | * Karla was never intended to wrap all of the functionality of ImageMagick |
| 101 | * and likely never will, you will from time to time need to write arguments |
| 102 | * to ImageMagick like you would have done directly in the consol. |
| 103 | * |
| 104 | * @param string $program |
| 105 | * Imagemagick tool to use |
| 106 | * @param string $arguments |
| 107 | * Arguments for the tool |
| 108 | * |
| 109 | * @return string Result of the command if any |
| 110 | * @throws \InvalidArgumentException if you try to run a non ImageMagick program |
| 111 | */ |
| 112 | public function raw(string $program, string $arguments = ""): string |
| 113 | { |
| 114 | if (! Program\ImageMagick::validProgram($program)) { |
| 115 | throw new \InvalidArgumentException('ImageMagick could not be located at specified path'); |
| 116 | } |
| 117 | strtoupper(substr(PHP_OS, 0, 3)) == "WIN" ? $bin = $program . '.exe' : $bin = $program; |
| 118 | |
| 119 | return shell_exec($this->binPath . $bin . ' ' . $arguments); |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Start a convert operation |
| 124 | * |
| 125 | * @return Program\Convert |
| 126 | */ |
| 127 | public function convert(): Program\Convert |
| 128 | { |
| 129 | $bin = strtoupper(substr(PHP_OS, 0, 3)) == "WIN" ? |
| 130 | Program\ImageMagick::IMAGEMAGICK_CONVERT . '.exe' : Program\ImageMagick::IMAGEMAGICK_CONVERT; |
| 131 | |
| 132 | return new Program\Convert($this->binPath, $bin, $this->cache); |
| 133 | } |
| 134 | |
| 135 | /** |
| 136 | * Start a identify operation |
| 137 | * |
| 138 | * @return Program\Identify |
| 139 | */ |
| 140 | public function identify(): Program\Identify |
| 141 | { |
| 142 | $bin = strtoupper(substr(PHP_OS, 0, 3)) == "WIN" ? |
| 143 | Program\ImageMagick::IMAGEMAGICK_IDENTIFY . '.exe' : Program\ImageMagick::IMAGEMAGICK_IDENTIFY; |
| 144 | |
| 145 | return new Program\Identify($this->binPath, $bin, $this->cache); |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * Start a composite operation |
| 150 | * |
| 151 | * @return Program\Composite |
| 152 | */ |
| 153 | public function composite(): Program\Composite |
| 154 | { |
| 155 | $bin = strtoupper(substr(PHP_OS, 0, 3)) == "WIN" ? |
| 156 | Program\ImageMagick::IMAGEMAGICK_COMPOSITE . '.exe' : Program\ImageMagick::IMAGEMAGICK_COMPOSITE; |
| 157 | |
| 158 | return new Program\Composite($this->binPath, $bin, $this->cache); |
| 159 | } |
| 160 | } |