+global\Minify::serve()

Complexity

Conditions	46
Paths	> 20000

Size

Total Lines

199

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public static function serve($controller, $options = array())
    {
        if (! self::$isDocRootSet && 0 === stripos(PHP_OS, 'win')) {
            self::setDocRoot();
        }

        if (is_string($controller)) {
            // make $controller into object
            $class = 'Minify_Controller_' . $controller;
            $controller = new $class();
            /* @var Minify_Controller_Base $controller */
        }
        
        // 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']) {
                self::_errorExit(self::$_options['badRequestHeader'], self::URL_DEBUG);
            } else {
                list(,$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']) {
            $sendVary = true;
            if (self::$_options['encodeMethod'] !== null) {
                // controller specifically requested this
                $contentEncoding = self::$_options['encodeMethod'];
            } else {
                // sniff request header
                // 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);
                $sendVary = ! HTTP_Encoder::isBuggyIe();
            }
        } else {
            self::$_options['encodeMethod'] = ''; // identity (no encoding)
        }
        
        // check client cache
        $cgOptions = array(
            'lastModifiedTime' => self::$_options['lastModifiedTime']
            ,'isPublic' => self::$_options['isPublic']
            ,'encoding' => self::$_options['encodeMethod']
        );
        if (self::$_options['maxAge'] > 0) {
            $cgOptions['maxAge'] = self::$_options['maxAge'];
        } elseif (self::$_options['debug']) {
            $cgOptions['invalidate'] = true;
        }
        $cg = new HTTP_ConditionalGet($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::$_options['concatOnly']) {
            foreach ($controller->sources as $key => $source) {
                if (self::$_options['contentType'] === self::TYPE_JS) {
                    $source->minifier = "";
                } elseif (self::$_options['contentType'] === self::TYPE_CSS) {
                    $source->minifier = array('Minify_CSS', 'minify');
                    $source->minifyOptions['compress'] = false;
                }
            }
        }

        if (self::$_options['contentType'] === self::TYPE_CSS && self::$_options['rewriteCssUris']) {
            foreach ($controller->sources as $key => $source) {
                if ($source->filepath
                    && !isset($source->minifyOptions['currentDir'])
                    && !isset($source->minifyOptions['prependRelativePath'])
                ) {
                    $source->minifyOptions['currentDir'] = dirname($source->filepath);
                }
            }
        }
        
        // check server cache
        if (null !== self::$_cache && ! self::$_options['debug']) {
            // 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 = 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
                try {
                    $content = self::_combineMinify();
                } catch (Exception $e) {
                    self::$_controller->log($e->getMessage());
                    if (! self::$_options['quiet']) {
                        self::_errorExit(self::$_options['errorHeader'], self::URL_DEBUG);
                    }
                    throw $e;
                }
                self::$_cache->store($cacheId, $content);
                if (function_exists('gzencode') && self::$_options['encodeMethod']) {
                    self::$_cache->store($cacheId . '.gz', gzencode($content, self::$_options['encodeLevel']));
                }
            }
        } else {
            // no cache
            $cacheIsReady = false;
            try {
                $content = self::_combineMinify();
            } catch (Exception $e) {
                self::$_controller->log($e->getMessage());
                if (! self::$_options['quiet']) {
                    self::_errorExit(self::$_options['errorHeader'], self::URL_DEBUG);
                }
                throw $e;
            }
        }
        if (! $cacheIsReady && self::$_options['encodeMethod']) {
            // still need to encode
            $content = gzencode($content, self::$_options['encodeLevel']);

The variable $content does not seem to be defined for all execution paths leading up to this point.

        }
        
        // add headers
        $headers['Content-Length'] = $cacheIsReady
            ? $cacheContentLength

The variable $cacheContentLength does not seem to be defined for all execution paths leading up to this point.

            : ((function_exists('mb_strlen') && ((int)ini_get('mbstring.func_overload') & 2))
                ? mb_strlen($content, '8bit')
                : strlen($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;

The variable $contentEncoding does not seem to be defined for all execution paths leading up to this point.

        }
        if (self::$_options['encodeOutput'] && $sendVary) {

The variable $sendVary does not seem to be defined for all execution paths leading up to this point.

            $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);

The variable $fullCacheId does not seem to be defined for all execution paths leading up to this point.

            } else {
                echo $content;
            }
        } else {
            return array(
                'success' => true
                ,'statusCode' => 200
                ,'content' => $cacheIsReady
                    ? self::$_cache->fetch($fullCacheId)
                    : $content
                ,'headers' => $headers
            );
        }
    }