/**
* Implements module logic for given hook
*
* @param \AppserverIo\Psr\HttpMessage\RequestInterface $request A request object
* @param \AppserverIo\Psr\HttpMessage\ResponseInterface $response A response object
* @param \AppserverIo\Server\Interfaces\RequestContextInterface $requestContext A requests context instance
* @param int $hook The current hook to process logic for
*
* @return bool
* @throws \AppserverIo\Server\Exceptions\ModuleException
*/
public function process(RequestInterface $request, ResponseInterface $response, RequestContextInterface $requestContext, $hook)
{
// In php an interface is, by definition, a fixed contract. It is immutable.
// So we have to declare the right ones afterwards...
/**
* @var $request \AppserverIo\Psr\HttpMessage\RequestInterface
*/
/**
* @var $request \AppserverIo\Psr\HttpMessage\ResponseInterface
*/
// if false hook is coming do nothing
if (ModuleHooks::REQUEST_POST !== $hook) {
return;
}
// set member ref for request context
$this->requestContext = $requestContext;
// We have to throw a ModuleException on failure, so surround the body with a try...catch block
try {
$requestUrl = $requestContext->getServerVar(ServerVars::HTTP_HOST) . $requestContext->getServerVar(ServerVars::X_REQUEST_URI);
if (!isset($this->rules[$requestUrl])) {
// Reset the $serverBackreferences array to avoid mixups of different requests
$this->serverBackreferences = array();
// Resolve all used backreferences which are NOT linked to the query string.
// We will resolve query string related backreferences separately as we are not able to cache them
// as easily as, say, the URI
// We also have to resolve all the changes rules in front of us made, so build up the backreferences
// IN the loop.
$this->fillContextBackreferences();
$this->fillHeaderBackreferences($request);
// Get the rules as the array they are within the config.
// We have to also collect any volatile rules which might be set on request base.
// We might not even get anything, so prepare our rules accordingly
$volatileRewrites = array();
if ($requestContext->hasModuleVar(ModuleVars::VOLATILE_REWRITES)) {
$volatileRewrites = $requestContext->getModuleVar(ModuleVars::VOLATILE_REWRITES);
}
// Build up the complete ruleset, volatile rules up front
$rules = array_merge($volatileRewrites, $this->configuredRules);
$this->rules[$requestUrl] = array();
// Only act if we got something
if (is_array($rules)) {
// Convert the rules to our internally used objects
foreach ($rules as $rule) {
// Add the rule as a Rule object
$rule = new Rule($rule['condition'], $rule['target'], $rule['flag']);
$rule->resolve($this->serverBackreferences);
$this->rules[$requestUrl][] = $rule;
}
}
}
// Iterate over all rules, resolve vars and apply the rule (if needed)
foreach ($this->rules[$requestUrl] as $rule) {
// Check if the rule matches, and if, apply the rule
if ($rule->matches()) {
// Apply the rule. If apply() returns false this means this was the last rule to process
if ($rule->apply($requestContext, $response, $this->serverBackreferences) === false) {
break;
}
}
}
} catch (\Exception $e) {
// Re-throw as a ModuleException
throw new ModuleException($e);
}
}
/**
* Used to open up the parent's sortFlags() method for testing
*
* @param string $flagString The unsorted string of flags
*
* @return array
*/
public function sortFlags($flagString)
{
return parent::sortFlags($flagString);
}
/**
* Test for the getTarget() method
*
* @return void
*/
public function testGetTarget()
{
$rule = new Rule('^_Resources/.*', '/index.php', '');
$this->assertEquals('/index.php', $rule->getTarget());
}