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Diffstat (limited to 'mod/minify/lib/min/lib/Minify.php')
| -rw-r--r-- | mod/minify/lib/min/lib/Minify.php | 532 |
1 files changed, 0 insertions, 532 deletions
diff --git a/mod/minify/lib/min/lib/Minify.php b/mod/minify/lib/min/lib/Minify.php deleted file mode 100644 index 25f0827a0..000000000 --- a/mod/minify/lib/min/lib/Minify.php +++ /dev/null @@ -1,532 +0,0 @@ -<?php -/** - * Class Minify - * @package Minify - */ - -/** - * Minify_Source - */ -require_once 'Minify/Source.php'; - -/** - * Minify - Combines, minifies, and caches JavaScript and CSS files on demand. - * - * See README for usage instructions (for now). - * - * This library was inspired by {@link mailto:flashkot@mail.ru jscsscomp by Maxim Martynyuk} - * and by the article {@link http://www.hunlock.com/blogs/Supercharged_Javascript "Supercharged JavaScript" by Patrick Hunlock}. - * - * Requires PHP 5.1.0. - * Tested on PHP 5.1.6. - * - * @package Minify - * @author Ryan Grove <ryan@wonko.com> - * @author Stephen Clay <steve@mrclay.org> - * @copyright 2008 Ryan Grove, Stephen Clay. All rights reserved. - * @license http://opensource.org/licenses/bsd-license.php New BSD License - * @link http://code.google.com/p/minify/ - */ -class Minify { - - const VERSION = '2.1.3'; - const TYPE_CSS = 'text/css'; - const TYPE_HTML = 'text/html'; - // there is some debate over the ideal JS Content-Type, but this is the - // Apache default and what Yahoo! uses.. - const TYPE_JS = 'application/x-javascript'; - - /** - * How many hours behind are the file modification times of uploaded files? - * - * If you upload files from Windows to a non-Windows server, Windows may report - * incorrect mtimes for the files. Immediately after modifying and uploading a - * file, use the touch command to update the mtime on the server. If the mtime - * jumps ahead by a number of hours, set this variable to that number. If the mtime - * moves back, this should not be needed. - * - * @var int $uploaderHoursBehind - */ - public static $uploaderHoursBehind = 0; - - /** - * If this string is not empty AND the serve() option 'bubbleCssImports' is - * NOT set, then serve() will check CSS files for @import declarations that - * appear too late in the combined stylesheet. If found, serve() will prepend - * the output with this warning. - * - * @var string $importWarning - */ - public static $importWarning = "/* See http://code.google.com/p/minify/wiki/CommonProblems#@imports_can_appear_in_invalid_locations_in_combined_CSS_files */\n"; - - /** - * Specify a cache object (with identical interface as Minify_Cache_File) or - * a path to use with Minify_Cache_File. - * - * If not called, Minify will not use a cache and, for each 200 response, will - * need to recombine files, minify and encode the output. - * - * @param mixed $cache object with identical interface as Minify_Cache_File or - * a directory path, or null to disable caching. (default = '') - * - * @param bool $fileLocking (default = true) This only applies if the first - * parameter is a string. - * - * @return null - */ - public static function setCache($cache = '', $fileLocking = true) - { - if (is_string($cache)) { - require_once 'Minify/Cache/File.php'; - self::$_cache = new Minify_Cache_File($cache, $fileLocking); - } else { - self::$_cache = $cache; - } - } - - /** - * Serve a request for a minified file. - * - * Here are the available options and defaults in the base controller: - * - * 'isPublic' : send "public" instead of "private" in Cache-Control - * headers, allowing shared caches to cache the output. (default true) - * - * 'quiet' : set to true to have serve() return an array rather than sending - * any headers/output (default false) - * - * 'encodeOutput' : set to false to disable content encoding, and not send - * the Vary header (default true) - * - * 'encodeMethod' : generally you should let this be determined by - * HTTP_Encoder (leave null), but you can force a particular encoding - * to be returned, by setting this to 'gzip' or '' (no encoding) - * - * 'encodeLevel' : level of encoding compression (0 to 9, default 9) - * - * 'contentTypeCharset' : appended to the Content-Type header sent. Set to a falsey - * value to remove. (default 'utf-8') - * - * 'maxAge' : set this to the number of seconds the client should use its cache - * before revalidating with the server. This sets Cache-Control: max-age and the - * Expires header. Unlike the old 'setExpires' setting, this setting will NOT - * prevent conditional GETs. Note this has nothing to do with server-side caching. - * - * 'rewriteCssUris' : If true, serve() will automatically set the 'currentDir' - * minifier option to enable URI rewriting in CSS files (default true) - * - * 'bubbleCssImports' : If true, all @import declarations in combined CSS - * files will be move to the top. Note this may alter effective CSS values - * due to a change in order. (default false) - * - * 'debug' : set to true to minify all sources with the 'Lines' controller, which - * eases the debugging of combined files. This also prevents 304 responses. - * @see Minify_Lines::minify() - * - * 'minifiers' : to override Minify's default choice of minifier function for - * a particular content-type, specify your callback under the key of the - * content-type: - * <code> - * // call customCssMinifier($css) for all CSS minification - * $options['minifiers'][Minify::TYPE_CSS] = 'customCssMinifier'; - * - * // don't minify Javascript at all - * $options['minifiers'][Minify::TYPE_JS] = ''; - * </code> - * - * 'minifierOptions' : to send options to the minifier function, specify your options - * under the key of the content-type. E.g. To send the CSS minifier an option: - * <code> - * // give CSS minifier array('optionName' => 'optionValue') as 2nd argument - * $options['minifierOptions'][Minify::TYPE_CSS]['optionName'] = 'optionValue'; - * </code> - * - * 'contentType' : (optional) this is only needed if your file extension is not - * js/css/html. The given content-type will be sent regardless of source file - * extension, so this should not be used in a Groups config with other - * Javascript/CSS files. - * - * Any controller options are documented in that controller's setupSources() method. - * - * @param mixed instance of subclass of Minify_Controller_Base or string name of - * controller. E.g. 'Files' - * - * @param array $options controller/serve options - * - * @return mixed null, or, if the 'quiet' option is set to true, an array - * with keys "success" (bool), "statusCode" (int), "content" (string), and - * "headers" (array). - */ - public static function serve($controller, $options = array()) - { - if (is_string($controller)) { - // make $controller into object - $class = 'Minify_Controller_' . $controller; - if (! class_exists($class, false)) { - require_once "Minify/Controller/" - . str_replace('_', '/', $controller) . ".php"; - } - $controller = new $class(); - } - - // set up controller sources and mix remaining options with - // controller defaults - $options = $controller->setupSources($options); - $options = $controller->analyzeSources($options); - self::$_options = $controller->mixInDefaultOptions($options); - - // check request validity - if (! $controller->sources) { - // invalid request! - if (! self::$_options['quiet']) { - header(self::$_options['badRequestHeader']); - echo self::$_options['badRequestHeader']; - return; - } else { - list(,$statusCode) = explode(' ', self::$_options['badRequestHeader']); - return array( - 'success' => false - ,'statusCode' => (int)$statusCode - ,'content' => '' - ,'headers' => array() - ); - } - } - - self::$_controller = $controller; - - if (self::$_options['debug']) { - self::_setupDebug($controller->sources); - self::$_options['maxAge'] = 0; - } - - // determine encoding - if (self::$_options['encodeOutput']) { - if (self::$_options['encodeMethod'] !== null) { - // controller specifically requested this - $contentEncoding = self::$_options['encodeMethod']; - } else { - // sniff request header - require_once 'HTTP/Encoder.php'; - // depending on what the client accepts, $contentEncoding may be - // 'x-gzip' while our internal encodeMethod is 'gzip'. Calling - // getAcceptedEncoding(false, false) leaves out compress and deflate as options. - list(self::$_options['encodeMethod'], $contentEncoding) = HTTP_Encoder::getAcceptedEncoding(false, false); - } - } else { - self::$_options['encodeMethod'] = ''; // identity (no encoding) - } - - // check client cache - require_once 'HTTP/ConditionalGet.php'; - $cgOptions = array( - 'lastModifiedTime' => self::$_options['lastModifiedTime'] - ,'isPublic' => self::$_options['isPublic'] - ,'encoding' => self::$_options['encodeMethod'] - ); - if (self::$_options['maxAge'] > 0) { - $cgOptions['maxAge'] = self::$_options['maxAge']; - } - $cg = new HTTP_ConditionalGet($cgOptions); - if ($cg->cacheIsValid) { - // client's cache is valid - if (! self::$_options['quiet']) { - $cg->sendHeaders(); - return; - } else { - return array( - 'success' => true - ,'statusCode' => 304 - ,'content' => '' - ,'headers' => $cg->getHeaders() - ); - } - } else { - // client will need output - $headers = $cg->getHeaders(); - unset($cg); - } - - if (self::$_options['contentType'] === self::TYPE_CSS - && self::$_options['rewriteCssUris']) { - reset($controller->sources); - while (list($key, $source) = each($controller->sources)) { - if ($source->filepath - && !isset($source->minifyOptions['currentDir']) - && !isset($source->minifyOptions['prependRelativePath']) - ) { - $source->minifyOptions['currentDir'] = dirname($source->filepath); - } - } - } - - // check server cache - if (null !== self::$_cache) { - // using cache - // the goal is to use only the cache methods to sniff the length and - // output the content, as they do not require ever loading the file into - // memory. - $cacheId = 'minify_' . self::_getCacheId(); - $fullCacheId = (self::$_options['encodeMethod']) - ? $cacheId . '.gz' - : $cacheId; - // check cache for valid entry - $cacheIsReady = self::$_cache->isValid($fullCacheId, self::$_options['lastModifiedTime']); - if ($cacheIsReady) { - $cacheContentLength = self::$_cache->getSize($fullCacheId); - } else { - // generate & cache content - $content = self::_combineMinify(); - self::$_cache->store($cacheId, $content); - if (function_exists('gzencode')) { - self::$_cache->store($cacheId . '.gz', gzencode($content, self::$_options['encodeLevel'])); - } - } - } else { - // no cache - $cacheIsReady = false; - $content = self::_combineMinify(); - } - if (! $cacheIsReady && self::$_options['encodeMethod']) { - // still need to encode - $content = gzencode($content, self::$_options['encodeLevel']); - } - - // add headers - $headers['Content-Length'] = $cacheIsReady - ? $cacheContentLength - : strlen($content); - $headers['Content-Type'] = self::$_options['contentTypeCharset'] - ? self::$_options['contentType'] . '; charset=' . self::$_options['contentTypeCharset'] - : self::$_options['contentType']; - if (self::$_options['encodeMethod'] !== '') { - $headers['Content-Encoding'] = $contentEncoding; - } - if (self::$_options['encodeOutput']) { - $headers['Vary'] = 'Accept-Encoding'; - } - - if (! self::$_options['quiet']) { - // output headers & content - foreach ($headers as $name => $val) { - header($name . ': ' . $val); - } - if ($cacheIsReady) { - self::$_cache->display($fullCacheId); - } else { - echo $content; - } - } else { - return array( - 'success' => true - ,'statusCode' => 200 - ,'content' => $cacheIsReady - ? self::$_cache->fetch($fullCacheId) - : $content - ,'headers' => $headers - ); - } - } - - /** - * Return combined minified content for a set of sources - * - * No internal caching will be used and the content will not be HTTP encoded. - * - * @param array $sources array of filepaths and/or Minify_Source objects - * - * @param array $options (optional) array of options for serve. By default - * these are already set: quiet = true, encodeMethod = '', lastModifiedTime = 0. - * - * @return string - */ - public static function combine($sources, $options = array()) - { - $cache = self::$_cache; - self::$_cache = null; - $options = array_merge(array( - 'files' => (array)$sources - ,'quiet' => true - ,'encodeMethod' => '' - ,'lastModifiedTime' => 0 - ), $options); - $out = self::serve('Files', $options); - self::$_cache = $cache; - return $out['content']; - } - - /** - * On IIS, create $_SERVER['DOCUMENT_ROOT'] - * - * @param bool $unsetPathInfo (default false) if true, $_SERVER['PATH_INFO'] - * will be unset (it is inconsistent with Apache's setting) - * - * @return null - */ - public static function setDocRoot($unsetPathInfo = false) - { - if (isset($_SERVER['SERVER_SOFTWARE']) - && 0 === strpos($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS/') - ) { - $_SERVER['DOCUMENT_ROOT'] = rtrim(substr( - $_SERVER['PATH_TRANSLATED'] - ,0 - ,strlen($_SERVER['PATH_TRANSLATED']) - strlen($_SERVER['SCRIPT_NAME']) - ), '\\'); - if ($unsetPathInfo) { - unset($_SERVER['PATH_INFO']); - } - require_once 'Minify/Logger.php'; - Minify_Logger::log("setDocRoot() set DOCUMENT_ROOT to \"{$_SERVER['DOCUMENT_ROOT']}\""); - } - } - - /** - * @var mixed Minify_Cache_* object or null (i.e. no server cache is used) - */ - private static $_cache = null; - - /** - * @var Minify_Controller active controller for current request - */ - protected static $_controller = null; - - /** - * @var array options for current request - */ - protected static $_options = null; - - /** - * Set up sources to use Minify_Lines - * - * @param array $sources Minify_Source instances - * - * @return null - */ - protected static function _setupDebug($sources) - { - foreach ($sources as $source) { - $source->minifier = array('Minify_Lines', 'minify'); - $id = $source->getId(); - $source->minifyOptions = array( - 'id' => (is_file($id) ? basename($id) : $id) - ); - } - } - - /** - * Combines sources and minifies the result. - * - * @return string - */ - protected static function _combineMinify() - { - $type = self::$_options['contentType']; // ease readability - - // when combining scripts, make sure all statements separated and - // trailing single line comment is terminated - $implodeSeparator = ($type === self::TYPE_JS) - ? "\n;" - : ''; - // allow the user to pass a particular array of options to each - // minifier (designated by type). source objects may still override - // these - $defaultOptions = isset(self::$_options['minifierOptions'][$type]) - ? self::$_options['minifierOptions'][$type] - : array(); - // if minifier not set, default is no minification. source objects - // may still override this - $defaultMinifier = isset(self::$_options['minifiers'][$type]) - ? self::$_options['minifiers'][$type] - : false; - - if (Minify_Source::haveNoMinifyPrefs(self::$_controller->sources)) { - // all source have same options/minifier, better performance - // to combine, then minify once - foreach (self::$_controller->sources as $source) { - $pieces[] = $source->getContent(); - } - $content = implode($implodeSeparator, $pieces); - if ($defaultMinifier) { - self::$_controller->loadMinifier($defaultMinifier); - $content = call_user_func($defaultMinifier, $content, $defaultOptions); - } - } else { - // minify each source with its own options and minifier, then combine - foreach (self::$_controller->sources as $source) { - // allow the source to override our minifier and options - $minifier = (null !== $source->minifier) - ? $source->minifier - : $defaultMinifier; - $options = (null !== $source->minifyOptions) - ? array_merge($defaultOptions, $source->minifyOptions) - : $defaultOptions; - if ($minifier) { - self::$_controller->loadMinifier($minifier); - // get source content and minify it - $pieces[] = call_user_func($minifier, $source->getContent(), $options); - } else { - $pieces[] = $source->getContent(); - } - } - $content = implode($implodeSeparator, $pieces); - } - - if ($type === self::TYPE_CSS && false !== strpos($content, '@import')) { - $content = self::_handleCssImports($content); - } - - // do any post-processing (esp. for editing build URIs) - if (self::$_options['postprocessorRequire']) { - require_once self::$_options['postprocessorRequire']; - } - if (self::$_options['postprocessor']) { - $content = call_user_func(self::$_options['postprocessor'], $content, $type); - } - return $content; - } - - /** - * Make a unique cache id for for this request. - * - * Any settings that could affect output are taken into consideration - * - * @return string - */ - protected static function _getCacheId() - { - return md5(serialize(array( - Minify_Source::getDigest(self::$_controller->sources) - ,self::$_options['minifiers'] - ,self::$_options['minifierOptions'] - ,self::$_options['postprocessor'] - ,self::$_options['bubbleCssImports'] - ))); - } - - /** - * Bubble CSS @imports to the top or prepend a warning if an - * @import is detected not at the top. - */ - protected static function _handleCssImports($css) - { - if (self::$_options['bubbleCssImports']) { - // bubble CSS imports - preg_match_all('/@import.*?;/', $css, $imports); - $css = implode('', $imports[0]) . preg_replace('/@import.*?;/', '', $css); - } else if ('' !== self::$importWarning) { - // remove comments so we don't mistake { in a comment as a block - $noCommentCss = preg_replace('@/\\*[\\s\\S]*?\\*/@', '', $css); - $lastImportPos = strrpos($noCommentCss, '@import'); - $firstBlockPos = strpos($noCommentCss, '{'); - if (false !== $lastImportPos - && false !== $firstBlockPos - && $firstBlockPos < $lastImportPos - ) { - // { appears before @import : prepend warning - $css = self::$importWarning . $css; - } - } - return $css; - } -} |