133 lines
5 KiB
PHP
133 lines
5 KiB
PHP
<?php
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namespace WebPConvert\Serve;
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//use WebPConvert\Serve\Report;
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use WebPConvert\Helpers\InputValidator;
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use WebPConvert\Options\ArrayOption;
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use WebPConvert\Options\BooleanOption;
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use WebPConvert\Options\Options;
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use WebPConvert\Options\StringOption;
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use WebPConvert\Serve\Header;
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use WebPConvert\Serve\Exceptions\ServeFailedException;
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/**
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* Serve a file (send to standard output)
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*
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* @package WebPConvert
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* @author Bjørn Rosell <it@rosell.dk>
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* @since Class available since Release 2.0.0
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*/
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class ServeFile
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{
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/**
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* Process options.
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*
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* @throws \WebPConvert\Options\Exceptions\InvalidOptionTypeException If the type of an option is invalid
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* @throws \WebPConvert\Options\Exceptions\InvalidOptionValueException If the value of an option is invalid
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* @param array $options
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*/
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private static function processOptions($options)
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{
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$options2 = new Options();
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$options2->addOptions(
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new ArrayOption('headers', []),
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new StringOption('cache-control-header', 'public, max-age=31536000')
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);
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foreach ($options as $optionId => $optionValue) {
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$options2->setOrCreateOption($optionId, $optionValue);
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}
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$options2->check();
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$options = $options2->getOptions();
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// headers option
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// --------------
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$headerOptions = new Options();
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$headerOptions->addOptions(
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new BooleanOption('cache-control', false),
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new BooleanOption('content-length', true),
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new BooleanOption('content-type', true),
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new BooleanOption('expires', false),
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new BooleanOption('last-modified', true),
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new BooleanOption('vary-accept', false)
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);
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foreach ($options['headers'] as $optionId => $optionValue) {
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$headerOptions->setOrCreateOption($optionId, $optionValue);
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}
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$options['headers'] = $headerOptions->getOptions();
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return $options;
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}
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/**
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* Serve existing file.
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*
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* @param string $filename File to serve (absolute path)
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* @param string $contentType Content-type (used to set header).
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* Only used when the "set-content-type-header" option is set.
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* Set to ie "image/jpeg" for serving jpeg file.
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* @param array $options Array of named options (optional).
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* Supported options:
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* 'add-vary-accept-header' => (boolean) Whether to add *Vary: Accept* header or not. Default: true.
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* 'set-content-type-header' => (boolean) Whether to set *Content-Type* header or not. Default: true.
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* 'set-last-modified-header' => (boolean) Whether to set *Last-Modified* header or not. Default: true.
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* 'set-cache-control-header' => (boolean) Whether to set *Cache-Control* header or not. Default: true.
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* 'cache-control-header' => string Cache control header. Default: "public, max-age=86400"
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*
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* @throws ServeFailedException if serving failed
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* @return void
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*/
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public static function serve($filename, $contentType, $options = [])
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{
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// Check mimetype - this also checks that path is secure and file exists
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InputValidator::checkMimeType($filename, [
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'image/jpeg',
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'image/png',
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'image/webp',
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'image/gif'
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]);
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/*
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if (!file_exists($filename)) {
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Header::addHeader('X-WebP-Convert-Error: Could not read file');
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throw new ServeFailedException('Could not read file');
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}*/
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$options = self::processOptions($options);
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if ($options['headers']['last-modified']) {
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Header::setHeader("Last-Modified: " . gmdate("D, d M Y H:i:s", @filemtime($filename)) . " GMT");
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}
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if ($options['headers']['content-type']) {
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Header::setHeader('Content-Type: ' . $contentType);
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}
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if ($options['headers']['vary-accept']) {
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Header::addHeader('Vary: Accept');
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}
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if (!empty($options['cache-control-header'])) {
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if ($options['headers']['cache-control']) {
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Header::setHeader('Cache-Control: ' . $options['cache-control-header']);
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}
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if ($options['headers']['expires']) {
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// Add exprires header too (#126)
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// Check string for something like this: max-age:86400
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if (preg_match('#max-age\\s*=\\s*(\\d*)#', $options['cache-control-header'], $matches)) {
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$seconds = $matches[1];
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Header::setHeader('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', time() + intval($seconds)));
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}
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}
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}
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if ($options['headers']['content-length']) {
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Header::setHeader('Content-Length: ' . filesize($filename));
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}
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if (@readfile($filename) === false) {
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Header::addHeader('X-WebP-Convert-Error: Could not read file');
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throw new ServeFailedException('Could not read file');
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}
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}
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}
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