325 lines
8.5 KiB
PHP
325 lines
8.5 KiB
PHP
<?php
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namespace Icinga\Web;
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use Icinga\Application\Icinga;
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/**
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* Url class that provides convenient access to parameters, allows to modify query parameters and
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* returns Urls reflecting all changes made to the url and to the parameters.
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*
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* Direct instantiation is prohibited and should be done either with @see Url::fromRequest() or
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* @see Url::fromUrlString()
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*
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* Currently, protocol, host and port are ignored and will be implemented when required
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*
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*/
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class Url
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{
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/**
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* An array of all parameters stored in this Url
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*
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* @var array
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*/
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private $params = array();
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/**
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* The relative path of this Url, without query parameters
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*
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* @var string
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*/
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private $path = '';
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/**
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* The baseUrl that will be appended to @see Url::$path in order to
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* create an absolute Url
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*
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* @var string
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*/
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private $baseUrl = '/';
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private function __construct()
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{
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}
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/**
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* Create a new Url class representing the current request
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*
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* If $params are given, those will be added to the request's parameters
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* and overwrite any existing parameters
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*
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* @param string $url The string representation of the Url to parse
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* @param array $params Parameters that should additionally be considered for the Url
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* @param Zend_Request $request A request to use instead of the default one
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*
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* @return Url
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*/
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public static function fromRequest(array $params = array(), $request = null)
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{
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if ($request === null) {
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$request = Icinga::app()->getFrontController()->getRequest();
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}
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$urlObject = new Url();
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$urlObject->setPath($request->getPathInfo());
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$urlObject->setParams(array_merge($request->getQuery(), $params));
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$urlObject->setBaseUrl($request->getBaseUrl());
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return $urlObject;
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}
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/**
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* Create a new Url class representing the given url
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*
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* If $params are given, those will be added to the urls parameters
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* and overwrite any existing parameters
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*
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* @param string $url The string representation of the Url to parse
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* @param array $params An array of parameters that should additionally be considered for the Url
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* @param Zend_Request $request A request to use instead of the default one
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*
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* @return Url
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*/
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public static function fromPath($url, array $params = array(), $request = null)
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{
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$urlObject = new Url();
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if ($request === null) {
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$request = Icinga::app()->getFrontController()->getRequest();
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}
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$urlObject->setBaseUrl($request->getBaseUrl());
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$urlParts = parse_url($url);
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if (isset($urlParts["path"])) {
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$urlObject->setPath($urlParts["path"]);
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}
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if (isset($urlParts["query"])) {
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$urlParams = array();
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parse_str($urlParts["query"], $urlParams);
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$params = array_merge($urlParams, $params);
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}
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$urlObject->setParams($params);
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return $urlObject;
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}
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/**
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* Overwrite the baseUrl.
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*
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* If an empty Url is given '/' is used as the base
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*
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* @param string $baseUrl The url path to use as the Url Base
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* @return $this
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*/
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public function setBaseUrl($baseUrl)
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{
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if (trim($baseUrl) == '') {
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$baseUrl = '/';
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}
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$this->baseUrl = $baseUrl;
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return $this;
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}
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/**
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* Return the baseUrl set for this Url
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*
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* @return string
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*/
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public function getBaseUrl()
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{
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return $this->baseUrl;
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}
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/**
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* Set the relative path of this url, without query parameters
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*
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* @param string $path The path to set
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*/
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public function setPath($path)
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{
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$this->path = $path;
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}
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/**
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* Return the relative path of this Url, without query parameters
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*
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* If you want the relative path with query parameters use getRelativeUrl
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*
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* @return string
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*/
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public function getPath()
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{
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return $this->path;
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}
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/**
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* Return the relative url with query parameters as a string
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*
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* @return string
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*/
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public function getRelativeUrl()
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{
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if (empty($this->params)) {
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return ltrim($this->path, '/');
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}
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return ltrim($this->path, '/').'?'.http_build_query($this->params);
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}
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/**
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* Return the absolute url with query parameters as a string
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*
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* @return string
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*/
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public function getAbsoluteUrl()
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{
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$url = $this->getRelativeUrl();
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$baseUrl = '/'.ltrim($this->baseUrl, '/');
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return $baseUrl.'/'.$url;
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}
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/**
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* Add a set of parameters to the query part if the keys don't exist yet
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*
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* @param array $params The parameters to add
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* @return $this
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*/
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public function addParams(array $params)
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{
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$this->params += $params;
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return $this;
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}
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/**
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* Overwrite the parameters used in the query part
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*
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* @param array $params The new parameters to use for the query part
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* @return $this
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*/
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public function setParams(array $params)
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{
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$this->params = $params;
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return $this;
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}
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/**
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* Return all parameters that will be used in the query part
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*
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* @return array An associative key => value array containing all parameters
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*/
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public function getParams()
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{
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return $this->params;
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}
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/**
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* Return true if the Urls' query parameter with $key exists, otherwise false
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*
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* @param $key A key to check for existing
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* @return bool
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*/
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public function hasParam($key)
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{
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return array_key_exists($key, $this->params);
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}
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/**
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* Return the Url's query parameter with the name $key if exists, otherwise $default
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*
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* @param $key A query parameter name to return if existing
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* @param mixed $default A value to return when the parameter doesn't exist
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* @return mixed
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*/
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public function getParam($key, $default = null)
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{
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if ($this->hasParam($key)) {
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return $this->params[$key];
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}
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return $default;
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}
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/**
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* Set a single parameter $key, overwriting existing ones with the same key
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*
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* @param string $key A string representing the key of the parameter
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* @param array|string $value An array or string to set as the parameter value
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* @return $this
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*/
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public function setParam($key, $value)
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{
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$this->params[$key] = $value;
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return $this;
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}
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/**
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* Remove provided key (if string) or keys (if array of string) from the query parameter array
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*
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* @param string|array $keyOrArrayOfKeys An array of strings or a string representing the key(s)
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* of the parameters to be removed
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* @return $this
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*/
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public function remove($keyOrArrayOfKeys)
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{
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if (is_array($keyOrArrayOfKeys)) {
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$this->removeKeys($keyOrArrayOfKeys);
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} else {
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$this->removeKey($keyOrArrayOfKeys);
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}
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return $this;
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}
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/**
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* Remove all parameters with the parameter names in the $keys array
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*
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* @param array $keys An array of strings containing parameter names to remove
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* @return $this
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*/
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public function removeKeys(array $keys)
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{
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foreach ($keys as $key) {
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$this->removeKey($key);
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}
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return $this;
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}
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/**
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* Remove a single parameter with the provided parameter name $key
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*
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* @param string $key The key to remove from the Url
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* @return $this
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*/
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public function removeKey($key)
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{
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if (isset($this->params[$key])) {
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unset($this->params[$key]);
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}
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return $this;
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}
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/**
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* Return a copy of this url without the parameter given
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*
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* The argument can either a single query parameter name or an array of parameter names to
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* remove from the query list
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*
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* @param string|array $keyOrArrayOfKeys A single string or an array containing parameter names
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* @return Url
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*/
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public function getUrlWithout($keyOrArrayOfKeys)
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{
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$url = clone($this);
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$url->remove($keyOrArrayOfKeys);
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return $url;
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}
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/**
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* Alias for @see Url::getAbsoluteUrl()
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* @return mixed
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*/
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public function __toString() {
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return $this->getAbsoluteUrl();
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}
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}
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