Request object for handling alternative HTTP requests
Alternative HTTP requests can come from wireless units like mobile phones, palmtop computers, and the like. These units have no use for AJAX requests, and this Component can tell how Cake should respond to the different needs of a handheld computer and a desktop machine.
$_defaultConfig
protected array
$_renderType
protected string|null
$ajaxLayout
public string
$enabled
public boolean
$ext
public string|null
Set the extension based on the accept headers. Compares the accepted types and configured extensions. If there is one common type, that is assigned as the ext/content type for the response. The type with the highest weight will be set. If the highest weight has more than one type matching the extensions, the order in which extensions are specified determines which type will be set.
Determines which content types the client accepts. Acceptance is based on the file extension parsed by the Router (if present), and by the HTTP_ACCEPT header. Unlike Cake\Network\Request::accepts() this method deals entirely with mapped content types.
Add a new mapped input type. Mapped input types are automatically converted by RequestHandlerComponent during the startup() callback.
Checks if the response can be considered different according to the request headers, and the caching response headers. If it was not modified, then the render process is skipped. And the client will get a blank response with a "304 Not Modified" header.
Helper method to parse xml input data, due to lack of anonymous functions this lives here.
Returns true if user agent string matches a mobile web browser, or if the client accepts WAP content.
Determines which content-types the client prefers. If no parameters are given, the single content-type that the client most likely prefers is returned. If $type is an array, the first item in the array that the client accepts is returned. Preference is determined primarily by the file extension parsed by the Router if provided, and secondarily by the list of content-types provided in HTTP_ACCEPT.
Sets either the view class if one exists or the layout and template path of the view. The names of these are derived from the $type input parameter.
Sets the response header based on type map index name. This wraps several methods available on Cake\Network\Response. It also allows you to use Content-Type aliases.
The startup method of the RequestHandler enables several automatic behaviors related to the detection of certain properties of the HTTP request, including:
__construct( Cake\Controller\ComponentRegistry $registry , array $config [] )
Constructor. Parses the accepted content types accepted by the client using HTTP_ACCEPT
Cake\Controller\ComponentRegistry
$registry
$config
optional [] Cake\Controller\Component::__construct()
_setExtension( Cake\Http\ServerRequest $request , Cake\Network\Response $response )
Set the extension based on the accept headers. Compares the accepted types and configured extensions. If there is one common type, that is assigned as the ext/content type for the response. The type with the highest weight will be set. If the highest weight has more than one type matching the extensions, the order in which extensions are specified determines which type will be set.
If html is one of the preferred types, no content type will be set, this is to avoid issues with browsers that prefer HTML and several other content types.
Cake\Http\ServerRequest
$request
$response
accepts( string|array|null $type null )
Determines which content types the client accepts. Acceptance is based on the file extension parsed by the Router (if present), and by the HTTP_ACCEPT header. Unlike Cake\Network\Request::accepts() this method deals entirely with mapped content types.
Usage:
$this->RequestHandler->accepts(['xml', 'html', 'json']);
Returns true if the client accepts any of the supplied types.
$this->RequestHandler->accepts('xml');
Returns true if the client accepts xml.
$type
optional null Can be null (or no parameter), a string type name, or an array of types
If null or no parameter is passed, returns an array of content types the client accepts. If a string is passed, returns true if the client accepts it. If an array is passed, returns true if the client accepts one or more elements in the array.
addInputType( string $type , array $handler )
Add a new mapped input type. Mapped input types are automatically converted by RequestHandlerComponent during the startup() callback.
$type
$handler
The handler array for the type. The first index should be the handling callback, all other arguments should be additional parameters for the handler.
Cake\Core\Exception\Exception
beforeRedirect( Cake\Event\Event $event , string|array $url , Cake\Network\Response $response )
Handles (fakes) redirects for AJAX requests using requestAction()
3.3.5 This functionality will be removed in 4.0.0. You can disable this function now by setting the enableBeforeRedirect
config option to false.
Cake\Event\Event
$event
$url
$response
beforeRender( Cake\Event\Event $event )
Checks if the response can be considered different according to the request headers, and the caching response headers. If it was not modified, then the render process is skipped. And the client will get a blank response with a "304 Not Modified" header.
Accept
header. For example, if controller/action.xml
is requested, the view path becomes app/View/Controller/xml/action.ctp
. Also if controller/action
is requested with Accept: application/xml
in the headers the view path will become app/View/Controller/xml/action.ctp
. Layout and template types will only switch to mime-types recognized by Cake\Network\Response. If you need to declare additional mime-types, you can do so using Cake\Network\Response::type() in your controller's beforeFilter() method.Cake\Event\Event
$event
convertXml( string $xml )
Helper method to parse xml input data, due to lack of anonymous functions this lives here.
$xml
implementedEvents( )
Events supported by this component.
Cake\Controller\Component::implementedEvents()
initialize( array $config )
$config
Cake\Controller\Component::initialize()
isAtom( )
Returns true if the current call accepts an Atom response, false otherwise
isMobile( )
Returns true if user agent string matches a mobile web browser, or if the client accepts WAP content.
isRss( )
Returns true if the current call accepts an RSS response, false otherwise
isXml( )
Returns true if the current call accepts an XML response, false otherwise
mapAlias( string|array $alias )
Maps a content type alias back to its mime-type(s)
$alias
Null on an undefined alias. String value of the mapped alias type. If an alias maps to more than one content type, the first one will be returned. If an array is provided for $alias, an array of mapped types will be returned.
prefers( string|array|null $type null )
Determines which content-types the client prefers. If no parameters are given, the single content-type that the client most likely prefers is returned. If $type is an array, the first item in the array that the client accepts is returned. Preference is determined primarily by the file extension parsed by the Router if provided, and secondarily by the list of content-types provided in HTTP_ACCEPT.
$type
optional null An optional array of 'friendly' content-type names, i.e. 'html', 'xml', 'js', etc.
If $type is null or not provided, the first content-type in the list, based on preference, is returned. If a single type is provided a boolean will be returned if that type is preferred. If an array of types are provided then the first preferred type is returned. If no type is provided the first preferred type is returned.
renderAs( Cake\Controller\Controller $controller , string $type , array $options [] )
Sets either the view class if one exists or the layout and template path of the view. The names of these are derived from the $type input parameter.
Render the response as an 'ajax' response.
$this->RequestHandler->renderAs($this, 'ajax');
Render the response as an xml file and force the result as a file download.
$this->RequestHandler->renderAs($this, 'xml', ['attachment' => 'myfile.xml'];
Cake\Controller\Controller
$controller
$type
$options
optional [] requestedWith( string|array|null $type null )
Determines the content type of the data the client has sent (i.e. in a POST request)
$type
optional null If a single type is supplied a boolean will be returned. If no type is provided The mapped value of CONTENT_TYPE will be returned. If an array is supplied the first type in the request content type will be returned.
respondAs( string|array $type , array $options [] )
Sets the response header based on type map index name. This wraps several methods available on Cake\Network\Response. It also allows you to use Content-Type aliases.
$type
Friendly type name, i.e. 'html' or 'xml', or a full content-type, like 'application/x-shockwave'.
$options
optional [] If $type is a friendly type name that is associated with more than one type of content, $index is used to select which content-type to use.
Returns false if the friendly type name given in $type does not exist in the type map, or if the Content-type header has already been set by this method.
responseType( )
Returns the current response type (Content-type header), or null if not alias exists
A string content type alias, or raw content type if no alias map exists, otherwise null
startup( Cake\Event\Event $event )
The startup method of the RequestHandler enables several automatic behaviors related to the detection of certain properties of the HTTP request, including:
If the XML data is POSTed, the data is parsed into an XML object, which is assigned to the $data property of the controller, which can then be saved to a model object.
Cake\Event\Event
$event
viewClassMap( array|string|null $type null , array|null $viewClass null )
Getter/setter for viewClassMap
$type
optional null ['type' => 'viewClass']
to map one or more$viewClass
optional null View
appended__debugInfo( )
Returns an array that can be used to describe the internal state of this object.
__get( string $name )
Magic method for lazy loading $components.
$name
getController( )
Get the controller this component is bound to.
Cake\Controller\Controller
_configDelete( string $key )
Deletes a single config key.
$key
Cake\Core\Exception\Exception
_configRead( string|null $key )
Reads a config key.
$key
_configWrite( string|array $key , mixed $value , boolean|string $merge false )
Writes a config key.
$key
$value
$merge
optional false True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.
Cake\Core\Exception\Exception
config( string|array|null $key null , mixed|null $value null , boolean $merge true )
Gets/Sets the config.
Reading the whole config:
$this->config();
Reading a specific value:
$this->config('key');
Reading a nested value:
$this->config('some.nested.key');
Setting a specific value:
$this->config('key', $value);
Setting a nested value:
$this->config('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);
$key
optional null $value
optional null $merge
optional true Cake\Core\Exception\Exception
configShallow( string|array $key , mixed|null $value null )
Merge provided config with existing config. Unlike config()
which does a recursive merge for nested keys, this method does a simple merge.
Setting a specific value:
$this->config('key', $value);
Setting a nested value:
$this->config('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);
$key
$value
optional null getConfig( string|null $key null )
Returns the config.
Reading the whole config:
$this->getConfig();
Reading a specific value:
$this->getConfig('key');
Reading a nested value:
$this->getConfig('some.nested.key');
$key
optional null setConfig( string|array $key , mixed|null $value null , boolean $merge true )
Sets the config.
Setting a specific value:
$this->setConfig('key', $value);
Setting a nested value:
$this->setConfig('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->setConfig(['one' => 'value', 'another' => 'value']);
$key
$value
optional null $merge
optional true Cake\Core\Exception\Exception
log( mixed $msg , integer|string $level LogLevel::ERROR , string|array $context [] )
Convenience method to write a message to Log. See Log::write() for more information on writing to logs.
$msg
$level
optional LogLevel::ERROR $context
optional [] protected array
Default config
These are merged with user-provided config when the component is used.
checkHttpCache
- Whether to check for HTTP cache.viewClassMap
- Mapping between type and view classes. If undefined json, xml, and ajax will be mapped. Defining any types will omit the defaults.inputTypeMap
- A mapping between types and deserializers for request bodies. If undefined json & xml will be mapped. Defining any types will omit the defaults.enableBeforeRedirect
- Set to false to disable the beforeRedirect
callback. The beforeRedirect
functionality has been deprecated.[ 'checkHttpCache' => true, 'viewClassMap' => [], 'inputTypeMap' => [], 'enableBeforeRedirect' => true ]
protected string|null
The template to use when rendering the given content type.
null
public string
Set the layout to be used when rendering the AuthComponent's ajaxLogin element.
3.3.11 This feature property is not supported and will be removed in 4.0.0
public string|null
Contains the file extension parsed out by the Router
null
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https://api.cakephp.org/3.4/class-Cake.Controller.Component.RequestHandlerComponent.html