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createCacheStrategy example
public function handle(Request $request, int $type = HttpKernelInterface::MAIN_REQUEST, bool $catch = true): Response
{
// FIXME: catch exceptions and implement a 500 error page here? -> in Varnish, there is a built-in error page mechanism if (HttpKernelInterface::MAIN_REQUEST === $type) {
$this->traces = [];
// Keep a clone of the original request for surrogates so they can access it. // We must clone here to get a separate instance because the application will modify the request during // the application flow (we know it always does because we do ourselves by setting REMOTE_ADDR to 127.0.0.1 // and adding the X-Forwarded-For header, see HttpCache::forward()). $this->request = clone $request;
if (null !== $this->surrogate) {
$this->surrogateCacheStrategy = $this->surrogate->createCacheStrategy();
}
}
$this->traces[$this->getTraceKey($request)] = [];
if (!$request->isMethodSafe()) {
$response = $this->invalidate($request, $catch);
} elseif ($request->headers->has('expect') || !$request->isMethodCacheable()) {
$response = $this->pass($request, $catch);
} elseif ($this->options['allow_reload'] && $request->isNoCache()) {
/* If allow_reload is configured and the client requests "Cache-Control: no-cache", reload the cache by fetching a fresh response and caching it (if possible). */
{
// FIXME: catch exceptions and implement a 500 error page here? -> in Varnish, there is a built-in error page mechanism if (HttpKernelInterface::MAIN_REQUEST === $type) {
$this->traces = [];
// Keep a clone of the original request for surrogates so they can access it. // We must clone here to get a separate instance because the application will modify the request during // the application flow (we know it always does because we do ourselves by setting REMOTE_ADDR to 127.0.0.1 // and adding the X-Forwarded-For header, see HttpCache::forward()). $this->request = clone $request;
if (null !== $this->surrogate) {
$this->surrogateCacheStrategy = $this->surrogate->createCacheStrategy();
}
}
$this->traces[$this->getTraceKey($request)] = [];
if (!$request->isMethodSafe()) {
$response = $this->invalidate($request, $catch);
} elseif ($request->headers->has('expect') || !$request->isMethodCacheable()) {
$response = $this->pass($request, $catch);
} elseif ($this->options['allow_reload'] && $request->isNoCache()) {
/* If allow_reload is configured and the client requests "Cache-Control: no-cache", reload the cache by fetching a fresh response and caching it (if possible). */
public function handle(Request $request, int $type = HttpKernelInterface::MAIN_REQUEST, bool $catch = true): Response
{
// FIXME: catch exceptions and implement a 500 error page here? -> in Varnish, there is a built-in error page mechanism if (HttpKernelInterface::MAIN_REQUEST === $type) {
$this->traces = [];
// Keep a clone of the original request for surrogates so they can access it. // We must clone here to get a separate instance because the application will modify the request during // the application flow (we know it always does because we do ourselves by setting REMOTE_ADDR to 127.0.0.1 // and adding the X-Forwarded-For header, see HttpCache::forward()). $this->request = clone $request;
if (null !== $this->surrogate) {
$this->surrogateCacheStrategy = $this->surrogate->createCacheStrategy();
}
}
$this->traces[$this->getTraceKey($request)] = [];
if (!$request->isMethodSafe()) {
$response = $this->invalidate($request, $catch);
} elseif ($request->headers->has('expect') || !$request->isMethodCacheable()) {
$response = $this->pass($request, $catch);
} elseif ($this->options['allow_reload'] && $request->isNoCache()) {
/* If allow_reload is configured and the client requests "Cache-Control: no-cache", reload the cache by fetching a fresh response and caching it (if possible). */
{
// FIXME: catch exceptions and implement a 500 error page here? -> in Varnish, there is a built-in error page mechanism if (HttpKernelInterface::MAIN_REQUEST === $type) {
$this->traces = [];
// Keep a clone of the original request for surrogates so they can access it. // We must clone here to get a separate instance because the application will modify the request during // the application flow (we know it always does because we do ourselves by setting REMOTE_ADDR to 127.0.0.1 // and adding the X-Forwarded-For header, see HttpCache::forward()). $this->request = clone $request;
if (null !== $this->surrogate) {
$this->surrogateCacheStrategy = $this->surrogate->createCacheStrategy();
}
}
$this->traces[$this->getTraceKey($request)] = [];
if (!$request->isMethodSafe()) {
$response = $this->invalidate($request, $catch);
} elseif ($request->headers->has('expect') || !$request->isMethodCacheable()) {
$response = $this->pass($request, $catch);
} elseif ($this->options['allow_reload'] && $request->isNoCache()) {
/* If allow_reload is configured and the client requests "Cache-Control: no-cache", reload the cache by fetching a fresh response and caching it (if possible). */