SurrogateInterface

interface SurrogateInterface

Methods

string getName()

Returns surrogate name.

ResponseCacheStrategyInterface createCacheStrategy()

Returns a new cache strategy instance.

bool hasSurrogateCapability(Request $request)

Checks that at least one surrogate has Surrogate capability.

addSurrogateCapability(Request $request)

Adds Surrogate-capability to the given Request.

addSurrogateControl(Response $response)

Adds HTTP headers to specify that the Response needs to be parsed for Surrogate.

bool needsParsing(Response $response)

Checks that the Response needs to be parsed for Surrogate tags.

string renderIncludeTag(string $uri, string $alt = null, bool $ignoreErrors = true, string $comment = '')

Renders a Surrogate tag.

Response process(Request $request, Response $response)

Replaces a Response Surrogate tags with the included resource content.

string handle(HttpCache $cache, string $uri, string $alt, bool $ignoreErrors)

Handles a Surrogate from the cache.

Details

string getName()

Returns surrogate name.

Return Value

string

ResponseCacheStrategyInterface createCacheStrategy()

Returns a new cache strategy instance.

Return Value

ResponseCacheStrategyInterface A ResponseCacheStrategyInterface instance

bool hasSurrogateCapability(Request $request)

Checks that at least one surrogate has Surrogate capability.

Parameters

Request $request

Return Value

bool true if one surrogate has Surrogate capability, false otherwise

addSurrogateCapability(Request $request)

Adds Surrogate-capability to the given Request.

Parameters

Request $request

addSurrogateControl(Response $response)

Adds HTTP headers to specify that the Response needs to be parsed for Surrogate.

This method only adds an Surrogate HTTP header if the Response has some Surrogate tags.

Parameters

Response $response

bool needsParsing(Response $response)

Checks that the Response needs to be parsed for Surrogate tags.

Parameters

Response $response

Return Value

bool true if the Response needs to be parsed, false otherwise

string renderIncludeTag(string $uri, string $alt = null, bool $ignoreErrors = true, string $comment = '')

Renders a Surrogate tag.

Parameters

string $uri A URI
string $alt An alternate URI
bool $ignoreErrors Whether to ignore errors or not
string $comment A comment to add as an esi:include tag

Return Value

string

Response process(Request $request, Response $response)

Replaces a Response Surrogate tags with the included resource content.

Parameters

Request $request
Response $response

Return Value

Response

string handle(HttpCache $cache, string $uri, string $alt, bool $ignoreErrors)

Handles a Surrogate from the cache.

Parameters

HttpCache $cache An HttpCache instance
string $uri The main URI
string $alt An alternative URI
bool $ignoreErrors Whether to ignore errors or not

Return Value

string

Exceptions

RuntimeException
Exception

© 2004–2017 Fabien Potencier
Licensed under the MIT License.
http://api.symfony.com/4.0/Symfony/Component/HttpKernel/HttpCache/SurrogateInterface.html