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| 1 | <?php |
| 2 | namespace WebPConvert\Serve; |
| 3 | |
| 4 | //use WebPConvert\Serve\Report; |
| 5 | use WebPConvert\Helpers\InputValidator; |
| 6 | use WebPConvert\Options\ArrayOption; |
| 7 | use WebPConvert\Options\BooleanOption; |
| 8 | use WebPConvert\Options\Options; |
| 9 | use WebPConvert\Options\StringOption; |
| 10 | use WebPConvert\Serve\Header; |
| 11 | use WebPConvert\Serve\Exceptions\ServeFailedException; |
| 12 | |
| 13 | /** |
| 14 | * Serve a file (send to standard output) |
| 15 | * |
| 16 | * @package WebPConvert |
| 17 | * @author Bjørn Rosell <it@rosell.dk> |
| 18 | * @since Class available since Release 2.0.0 |
| 19 | */ |
| 20 | class ServeFile |
| 21 | { |
| 22 | |
| 23 | /** |
| 24 | * Process options. |
| 25 | * |
| 26 | * @throws \WebPConvert\Options\Exceptions\InvalidOptionTypeException If the type of an option is invalid |
| 27 | * @throws \WebPConvert\Options\Exceptions\InvalidOptionValueException If the value of an option is invalid |
| 28 | * @param array $options |
| 29 | */ |
| 30 | private static function processOptions($options) |
| 31 | { |
| 32 | $options2 = new Options(); |
| 33 | $options2->addOptions( |
| 34 | new ArrayOption('headers', []), |
| 35 | new StringOption('cache-control-header', 'public, max-age=31536000') |
| 36 | ); |
| 37 | foreach ($options as $optionId => $optionValue) { |
| 38 | $options2->setOrCreateOption($optionId, $optionValue); |
| 39 | } |
| 40 | $options2->check(); |
| 41 | $options = $options2->getOptions(); |
| 42 | |
| 43 | // headers option |
| 44 | // -------------- |
| 45 | |
| 46 | $headerOptions = new Options(); |
| 47 | $headerOptions->addOptions( |
| 48 | new BooleanOption('cache-control', false), |
| 49 | new BooleanOption('content-length', true), |
| 50 | new BooleanOption('content-type', true), |
| 51 | new BooleanOption('expires', false), |
| 52 | new BooleanOption('last-modified', true), |
| 53 | new BooleanOption('vary-accept', false) |
| 54 | ); |
| 55 | foreach ($options['headers'] as $optionId => $optionValue) { |
| 56 | $headerOptions->setOrCreateOption($optionId, $optionValue); |
| 57 | } |
| 58 | $options['headers'] = $headerOptions->getOptions(); |
| 59 | return $options; |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Serve existing file. |
| 64 | * |
| 65 | * @param string $filename File to serve (absolute path) |
| 66 | * @param string $contentType Content-type (used to set header). |
| 67 | * Only used when the "set-content-type-header" option is set. |
| 68 | * Set to ie "image/jpeg" for serving jpeg file. |
| 69 | * @param array $options Array of named options (optional). |
| 70 | * Supported options: |
| 71 | * 'add-vary-accept-header' => (boolean) Whether to add *Vary: Accept* header or not. Default: true. |
| 72 | * 'set-content-type-header' => (boolean) Whether to set *Content-Type* header or not. Default: true. |
| 73 | * 'set-last-modified-header' => (boolean) Whether to set *Last-Modified* header or not. Default: true. |
| 74 | * 'set-cache-control-header' => (boolean) Whether to set *Cache-Control* header or not. Default: true. |
| 75 | * 'cache-control-header' => string Cache control header. Default: "public, max-age=86400" |
| 76 | * |
| 77 | * @throws ServeFailedException if serving failed |
| 78 | * @return void |
| 79 | */ |
| 80 | public static function serve($filename, $contentType, $options = []) |
| 81 | { |
| 82 | // Check mimetype - this also checks that path is secure and file exists |
| 83 | InputValidator::checkMimeType($filename, [ |
| 84 | 'image/jpeg', |
| 85 | 'image/png', |
| 86 | 'image/webp', |
| 87 | 'image/gif' |
| 88 | ]); |
| 89 | |
| 90 | /* |
| 91 | if (!file_exists($filename)) { |
| 92 | Header::addHeader('X-WebP-Convert-Error: Could not read file'); |
| 93 | throw new ServeFailedException('Could not read file'); |
| 94 | }*/ |
| 95 | |
| 96 | $options = self::processOptions($options); |
| 97 | |
| 98 | if ($options['headers']['last-modified']) { |
| 99 | Header::setHeader("Last-Modified: " . gmdate("D, d M Y H:i:s", @filemtime($filename)) . " GMT"); |
| 100 | } |
| 101 | |
| 102 | if ($options['headers']['content-type']) { |
| 103 | Header::setHeader('Content-Type: ' . $contentType); |
| 104 | } |
| 105 | |
| 106 | if ($options['headers']['vary-accept']) { |
| 107 | Header::addHeader('Vary: Accept'); |
| 108 | } |
| 109 | |
| 110 | if (!empty($options['cache-control-header'])) { |
| 111 | if ($options['headers']['cache-control']) { |
| 112 | Header::setHeader('Cache-Control: ' . $options['cache-control-header']); |
| 113 | } |
| 114 | if ($options['headers']['expires']) { |
| 115 | // Add exprires header too (#126) |
| 116 | // Check string for something like this: max-age:86400 |
| 117 | if (preg_match('#max-age\\s*=\\s*(\\d*)#', $options['cache-control-header'], $matches)) { |
| 118 | $seconds = $matches[1]; |
| 119 | Header::setHeader('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', time() + intval($seconds))); |
| 120 | } |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | if ($options['headers']['content-length']) { |
| 125 | Header::setHeader('Content-Length: ' . filesize($filename)); |
| 126 | } |
| 127 | |
| 128 | if (@readfile($filename) === false) { |
| 129 | Header::addHeader('X-WebP-Convert-Error: Could not read file'); |
| 130 | throw new ServeFailedException('Could not read file'); |
| 131 | } |
| 132 | } |
| 133 | } |