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<?php |
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namespace FileEye\MimeMap; |
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use SebastianBergmann\Comparator\ComparisonFailure; |
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use SebastianBergmann\Comparator\Factory; |
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use SebastianBergmann\Diff\Differ; |
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use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder; |
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/** |
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* Compiles the MIME type to file extension map. |
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*/ |
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class MapUpdater |
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{ |
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/** |
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* Default URL where to read the specification from. |
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* |
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* The apache httpd project contains the most complete list of file |
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* extension to mime type mapping on the planet. We use it to update our |
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* own list. |
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*/ |
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const DEFAULT_SOURCE_FILE = 'http://svn.apache.org/viewvc/httpd/httpd/trunk/docs/conf/mime.types?view=co'; |
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/** |
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* Returns the default file with override commands to be executed. |
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* |
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* The YAML file provides an array of calls to MapHandler methods to be |
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* executed sequentially. Each entry indicates the method to be invoked and |
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* the arguments to be passed in. |
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* |
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* @return string |
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*/ |
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public static function getDefaultOverrideFile() |
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{ |
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return __DIR__ . '/../resources/overrides.yml'; |
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} |
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/** |
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* Creates a new type-to-extension map reading from a file. |
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* |
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* @param string $source_file |
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* (Optional) the source file. Defaults to the Apache source bind_textdomain_codeset |
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* repository file where MIME types and file extensions are associated. |
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* |
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* @throws \RuntimeException if file I/O error occurs. |
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* |
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* @return MapHandler |
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* The map handler with the new map. |
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*/ |
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public function createMapFromSourceFile($source_file = MapUpdater::DEFAULT_SOURCE_FILE) |
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{ |
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$map = new MapHandler([]); |
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$lines = file($source_file); |
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foreach ($lines as $line) { |
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if ($line{0} == '#') { |
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continue; |
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} |
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$line = preg_replace("#\\s+#", ' ', trim($line)); |
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$parts = explode(' ', $line); |
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$type = array_shift($parts); |
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foreach ($parts as $extension) { |
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$map->addMapping($type, $extension); |
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} |
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} |
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$map_array = $map->get(); |
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if (empty($map_array)) { |
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throw new \RuntimeException('No data found in file ' . $source_file); |
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} |
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return $map; |
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} |
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/** |
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* Compares two type-to-extension maps by section. |
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* |
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* @param MapHandler $old_map |
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* The first map to compare. |
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* @param MapHandler $new_map |
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* The second map to compare. |
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* @param string $section |
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* The first-level array key to compare: 'types' or 'extensions'. |
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* |
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* @throws \RuntimeException with diff details if the maps differ. |
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* |
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* @return bool |
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* True if the maps are equal. |
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*/ |
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public function compareMaps(MapHandler $old_map, MapHandler $new_map, $section) |
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{ |
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$old_map->sort(); |
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$new_map->sort(); |
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$old = $old_map->get(); |
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$new = $new_map->get(); |
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$factory = new Factory; |
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$comparator = $factory->getComparatorFor($old[$section], $new[$section]); |
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try { |
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$comparator->assertEquals($old[$section], $new[$section]); |
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return true; |
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} catch (ComparisonFailure $failure) { |
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$old_string = var_export($old[$section], true); |
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$new_string = var_export($new[$section], true); |
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if (PHP_VERSION_ID >= 70000) { |
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$differ = new Differ(new UnifiedDiffOutputBuilder("--- Removed\n+++ Added\n")); |
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throw new \RuntimeException($differ->diff($old_string, $new_string)); |
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} else { |
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throw new \RuntimeException(' '); |
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} |
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} |
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} |
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/** |
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* Applies to the map an array of overrides. |
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* |
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* @param MapHandler $map |
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* The map. |
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* @param array $overrides |
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* The overrides to be applied. |
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* |
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* @return void |
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*/ |
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public function applyOverrides(MapHandler $map, array $overrides) |
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{ |
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foreach ($overrides as $command) { |
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call_user_func_array([$map, $command[0]], $command[1]); |
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} |
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} |
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/** |
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* Updates the map at a destination PHP file. |
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* |
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* @param MapHandler $map |
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* The map. |
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* @param string $output_file |
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* The destination PHP file. |
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* |
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* @return void |
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*/ |
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public function writeMapToCodeFile(MapHandler $map, $output_file) |
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{ |
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$content = preg_replace( |
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'#public static \$map = (.+?);#s', |
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"public static \$map = " . var_export($map->get(), true) . ";", |
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file_get_contents($output_file) |
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); |
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file_put_contents($output_file, $content); |
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} |
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} |
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FileEye /
MimeMap
