/**
* @return string The current cache version identifier
*/
public function render()
{
$version = $this->configurationCache->get('ConfigurationVersion');
if ($version === false) {
$version = time();
$this->configurationCache->set('ConfigurationVersion', (string) $version);
}
return $version;
}
/**
* Tries to retrieve the specified content segment from the cache – further nested inline segments are retrieved
* as well and segments which were not cacheable are rendered.
*
* @param \Closure $uncachedCommandCallback A callback to process commands in uncached segments
* @param string $typoScriptPath TypoScript path identifying the TypoScript object to retrieve from the content cache
* @param array $cacheIdentifierValues Further values which play into the cache identifier hash, must be the same as the ones specified while the cache entry was written
* @param boolean $addCacheSegmentMarkersToPlaceholders If cache segment markers should be added – this makes sense if the cached segment is about to be included in a not-yet-cached segment
* @return string|boolean The segment with replaced cache placeholders, or FALSE if a segment was missing in the cache
* @throws Exception
*/
public function getCachedSegment($uncachedCommandCallback, $typoScriptPath, $cacheIdentifierValues, $addCacheSegmentMarkersToPlaceholders = false)
{
$cacheIdentifier = $this->renderContentCacheEntryIdentifier($typoScriptPath, $cacheIdentifierValues);
$content = $this->cache->get($cacheIdentifier);
if ($content === false) {
return false;
}
$i = 0;
do {
$replaced = $this->replaceCachePlaceholders($content, $addCacheSegmentMarkersToPlaceholders);
if ($replaced === false) {
return false;
}
if ($i > self::MAXIMUM_NESTING_LEVEL) {
throw new Exception('Maximum cache segment level reached', 1391873620);
}
$i++;
} while ($replaced > 0);
$this->replaceUncachedPlaceholders($uncachedCommandCallback, $content);
if ($addCacheSegmentMarkersToPlaceholders) {
return self::CACHE_SEGMENT_START_TOKEN . $this->randomCacheMarker . $cacheIdentifier . self::CACHE_SEGMENT_SEPARATOR_TOKEN . $this->randomCacheMarker . '*' . self::CACHE_SEGMENT_SEPARATOR_TOKEN . $this->randomCacheMarker . $content . self::CACHE_SEGMENT_END_TOKEN . $this->randomCacheMarker;
} else {
return $content;
}
}
/**
* @test
*/
public function getFetchesStringValueFromBackend()
{
$backend = $this->prepareDefaultBackend();
$backend->expects($this->once())->method('get')->will($this->returnValue('Just some value'));
$cache = new StringFrontend('StringFrontend', $backend);
$this->assertEquals('Just some value', $cache->get('StringCacheTest'), 'The returned value was not the expected string.');
}
/**
* Checks the cache for the given route values and returns the cached resolvedUriPath if a cache entry is found
*
* @param array $routeValues
* @return string|boolean the cached request path or FALSE if no cache entry was found
*/
public function getCachedResolvedUriPath(array $routeValues)
{
$routeValues = $this->convertObjectsToHashes($routeValues);
if ($routeValues === null) {
return false;
}
return $this->resolveCache->get($this->buildResolveCacheIdentifier($routeValues));
}
/**
* Loads the last detected files for this monitor.
*
* @return void
*/
protected function loadDetectedDirectoriesAndFiles()
{
if ($this->directoriesAndFiles === null) {
$this->directoriesAndFiles = json_decode($this->cache->get($this->identifier . '_directoriesAndFiles'), true);
if (!is_array($this->directoriesAndFiles)) {
$this->directoriesAndFiles = [];
}
}
}
/**
* Returns the encryption key from the persistent cache or Data/Persistent directory. If none exists, a new
* encryption key will be generated and stored in the cache.
*
* @return string The configured encryption key stored in Data/Persistent/EncryptionKey
*/
protected function getEncryptionKey()
{
if ($this->encryptionKey === null) {
$this->encryptionKey = $this->cache->get('encryptionKey');
}
if ($this->encryptionKey === false && file_exists(FLOW_PATH_DATA . 'Persistent/EncryptionKey')) {
$this->encryptionKey = file_get_contents(FLOW_PATH_DATA . 'Persistent/EncryptionKey');
}
if ($this->encryptionKey === false) {
$this->encryptionKey = bin2hex(Utility\Algorithms::generateRandomBytes(48));
$this->cache->set('encryptionKey', $this->encryptionKey);
}
return $this->encryptionKey;
}
/**
* Loads all node types into memory.
*
* @return void
*/
protected function loadNodeTypes()
{
$this->fullNodeTypeConfigurations = $this->fullConfigurationCache->get('fullNodeTypeConfigurations');
$fillFullConfigurationCache = !is_array($this->fullNodeTypeConfigurations);
$completeNodeTypeConfiguration = $this->configurationManager->getConfiguration('NodeTypes');
foreach (array_keys($completeNodeTypeConfiguration) as $nodeTypeName) {
if (!is_array($completeNodeTypeConfiguration[$nodeTypeName])) {
continue;
}
$nodeType = $this->loadNodeType($nodeTypeName, $completeNodeTypeConfiguration, isset($this->fullNodeTypeConfigurations[$nodeTypeName]) ? $this->fullNodeTypeConfigurations[$nodeTypeName] : null);
if ($fillFullConfigurationCache) {
$this->fullNodeTypeConfigurations[$nodeTypeName] = $nodeType->getFullConfiguration();
}
}
if ($fillFullConfigurationCache) {
$this->fullConfigurationCache->set('fullNodeTypeConfigurations', $this->fullNodeTypeConfigurations);
}
$this->fullNodeTypeConfigurations = null;
}
/**
* Logs a user in if a session identifier is available under the given token in the token cache.
*
* @param string $token
* @return void
*/
public function tokenLoginAction($token)
{
$newSessionId = $this->loginTokenCache->get($token);
$this->loginTokenCache->remove($token);
if ($newSessionId === false) {
$this->systemLogger->log(sprintf('Token-based login failed, non-existing or expired token %s', $token), LOG_WARNING);
$this->redirect('index');
}
$this->systemLogger->log(sprintf('Token-based login succeeded, token %s', $token), LOG_DEBUG);
$newSession = $this->sessionManager->getSession($newSessionId);
if ($newSession->canBeResumed()) {
$newSession->resume();
}
if ($newSession->isStarted()) {
$newSession->putData('lastVisitedNode', null);
} else {
$this->systemLogger->log(sprintf('Failed resuming or starting session %s which was referred to in the login token %s.', $newSessionId, $token), LOG_ERR);
}
$this->replaceSessionCookie($newSessionId);
$this->redirect('index', 'Backend\\Backend');
}
/**
* Initializes this strategy
*
* @param FileMonitor $fileMonitor
* @return void
*/
public function setFileMonitor(FileMonitor $fileMonitor)
{
$this->fileMonitor = $fileMonitor;
$this->filesAndModificationTimes = json_decode($this->cache->get($this->fileMonitor->getIdentifier() . '_filesAndModificationTimes'), true);
}
