icingaweb2/library/Icinga/Web/Url.php

466 lines
12 KiB
PHP

<?php
// {{{ICINGA_LICENSE_HEADER}}}
// {{{ICINGA_LICENSE_HEADER}}}
namespace Icinga\Web;
use Icinga\Application\Icinga;
use Icinga\Cli\FakeRequest;
use Icinga\Exception\ProgrammingError;
use Icinga\Web\UrlParams;
/**
* Url class that provides convenient access to parameters, allows to modify query parameters and
* returns Urls reflecting all changes made to the url and to the parameters.
*
* Direct instantiation is prohibited and should be done either with @see Url::fromRequest() or
* @see Url::fromUrlString()
*
* Currently, protocol, host and port are ignored and will be implemented when required
*/
class Url
{
/**
* An array of all parameters stored in this Url
*
* @var UrlParams
*/
protected $params;
/**
* The site anchor after the '#'
*
* @var string
*/
protected $anchor = '';
/**
* The relative path of this Url, without query parameters
*
* @var string
*/
protected $path = '';
/**
* The baseUrl that will be appended to @see Url::$path in order to
* create an absolute Url
*
* @var string
*/
protected $baseUrl = '/';
protected function __construct()
{
$this->params = UrlParams::fromQueryString(''); // TODO: ::create()
}
/**
* Create a new Url class representing the current request
*
* If $params are given, those will be added to the request's parameters
* and overwrite any existing parameters
*
* @param UrlParams|array $params Parameters that should additionally be considered for the url
* @param Zend_Request $request A request to use instead of the default one
*
* @return Url
*/
public static function fromRequest($params = array(), $request = null)
{
if ($request === null) {
$request = self::getRequest();
}
$url = new Url();
$url->setPath($request->getPathInfo());
// $urlParams = UrlParams::fromQueryString($request->getQuery());
if (isset($_SERVER['QUERY_STRING'])) {
$urlParams = UrlParams::fromQueryString($_SERVER['QUERY_STRING']);
} else {
$urlParams = UrlParams::fromQueryString('');
foreach ($request->getQuery() as $k => $v) {
$urlParams->set($k, $v);
}
}
foreach ($params as $k => $v) {
$urlParams->set($k, $v);
}
$url->setParams($urlParams);
$url->setBaseUrl($request->getBaseUrl());
return $url;
}
/**
* Return a request object that should be used for determining the URL
*
* @return Zend_Abstract_Request
*/
protected static function getRequest()
{
$app = Icinga::app();
if ($app->isCli()) {
return new FakeRequest();
} else {
return $app->getFrontController()->getRequest();
}
}
/**
* Create a new Url class representing the given url
*
* If $params are given, those will be added to the urls parameters
* and overwrite any existing parameters
*
* @param string $url The string representation of the url to parse
* @param array $params An array of parameters that should additionally be considered for the url
* @param Zend_Request $request A request to use instead of the default one
*
* @return Url
*/
public static function fromPath($url, array $params = array(), $request = null)
{
if ($request === null) {
$request = self::getRequest();
}
if (!is_string($url)) {
throw new ProgrammingError(
'url "%s" is not a string',
$url
);
}
$urlObject = new Url();
$baseUrl = $request->getBaseUrl();
$urlObject->setBaseUrl($baseUrl);
$urlParts = parse_url($url);
if (isset($urlParts['path'])) {
if ($baseUrl !== '' && strpos($urlParts['path'], $baseUrl) === 0) {
$urlObject->setPath(substr($urlParts['path'], strlen($baseUrl)));
} else {
$urlObject->setPath($urlParts['path']);
}
}
// TODO: This has been used by former filter implementation, remove it:
if (isset($urlParts['query'])) {
$params = UrlParams::fromQueryString($urlParts['query'])->mergeValues($params);
}
if (isset($urlParts['fragment'])) {
$urlObject->setAnchor($urlParts['fragment']);
}
$urlObject->setParams($params);
return $urlObject;
}
/**
* Overwrite the baseUrl
*
* If an empty Url is given '/' is used as the base
*
* @param string $baseUrl The url path to use as the Url Base
*
* @return self
*/
public function setBaseUrl($baseUrl)
{
if (($baseUrl = rtrim($baseUrl, '/ ')) === '') {
$baseUrl = '/';
}
$this->baseUrl = $baseUrl;
return $this;
}
/**
* Return the baseUrl set for this url
*
* @return string
*/
public function getBaseUrl()
{
return $this->baseUrl;
}
/**
* Set the relative path of this url, without query parameters
*
* @param string $path The path to set
*
* @return self
*/
public function setPath($path)
{
$this->path = ltrim($path, '/');
return $this;
}
/**
* Return the relative path of this url, without query parameters
*
* If you want the relative path with query parameters use getRelativeUrl
*
* @return string
*/
public function getPath()
{
return $this->path;
}
/**
* Return the relative url with query parameters as a string
*
* @return string
*/
public function getRelativeUrl($separator = '&')
{
if ($this->params->isEmpty()) {
return $this->path . $this->anchor;
} else {
return $this->path . '?' . $this->params->toString($separator) . $this->anchor;
}
}
public function setQueryString($queryString)
{
$this->params = UrlParams::fromQueryString($queryString);
return $this;
}
public function getQueryString()
{
return (string) $this->params;
}
/**
* Return the absolute url with query parameters as a string
*
* @return string
*/
public function getAbsoluteUrl($separator = '&')
{
return $this->baseUrl . ($this->baseUrl !== '/' ? '/' : '') . $this->getRelativeUrl($separator);
}
/**
* Add a set of parameters to the query part if the keys don't exist yet
*
* @param array $params The parameters to add
*
* @return self
*/
public function addParams(array $params)
{
foreach ($params as $k => $v) {
$this->params->add($k, $v);
}
return $this;
}
/**
* Set and overwrite the given params if one if the same key already exists
*
* @param array $params The parameters to set
*
* @return self
*/
public function overwriteParams(array $params)
{
foreach ($params as $k => $v) {
$this->params->set($k, $v);
}
return $this;
}
/**
* Overwrite the parameters used in the query part
*
* @param UrlParams|array $params The new parameters to use for the query part
*
* @return self
*/
public function setParams($params)
{
if ($params instanceof UrlParams) {
$this->params = $params;
} elseif (is_array($params)) {
$urlParams = UrlParams::fromQueryString('');
foreach ($params as $k => $v) {
$urlParams->set($k, $v);
}
$this->params = $urlParams;
} else {
throw new ProgrammingError(
'Url params needs to be either an array or an UrlParams instance'
);
}
return $this;
}
/**
* Return all parameters that will be used in the query part
*
* @return UrlParams An instance of UrlParam containing all parameters
*/
public function getParams()
{
return $this->params;
}
/**
* Return true if a urls' query parameter exists, otherwise false
*
* @param string $param The url parameter name to check
*
* @return bool
*/
public function hasParam($param)
{
return $this->params->has($param);
}
/**
* Return a url's query parameter if it exists, otherwise $default
*
* @param string $param A query parameter name to return if existing
* @param mixed $default A value to return when the parameter doesn't exist
*
* @return mixed
*/
public function getParam($param, $default = null)
{
return $this->params->get($param, $default);
}
/**
* Set a single parameter, overwriting any existing one with the same name
*
* @param string $param The query parameter name
* @param array|string $value An array or string to set as the parameter value
*
* @return self
*/
public function setParam($param, $value = true)
{
$this->params->set($param, $value);
return $this;
}
/**
* Set the url anchor-part
*
* @param string $anchor The site's anchor string without the '#'
*
* @return self
*/
public function setAnchor($anchor)
{
$this->anchor = '#' . $anchor;
return $this;
}
/**
* Remove provided key (if string) or keys (if array of string) from the query parameter array
*
* @param string|array $keyOrArrayOfKeys An array of strings or a string representing the key(s)
* of the parameters to be removed
* @return self
*/
public function remove($keyOrArrayOfKeys)
{
$this->params->remove($keyOrArrayOfKeys);
return $this;
}
/**
* Shift a query parameter from this URL if it exists, otherwise $default
*
* @param string $param Parameter name
* @param mixed $default Default value in case $param does not exist
*
* @return mixed
*/
public function shift($param, $default = null)
{
return $this->params->shift($param, $default);
}
/**
* Whether the given URL matches this URL object
*
* This does an exact match, parameters MUST be in the same order
*
* @param Url|string $url the URL to compare against
*
* @return bool whether the URL matches
*/
public function matches($url)
{
if (! $url instanceof Url) {
$url = Url::fromPath($url);
}
return (string) $url === (string) $this;
}
/**
* Return a copy of this url without the parameter given
*
* The argument can be either a single query parameter name or an array of parameter names to
* remove from the query list
*
* @param string|array $keyOrArrayOfKeys A single string or an array containing parameter names
*
* @return Url
*/
public function getUrlWithout($keyOrArrayOfKeys)
{
return $this->without($keyOrArrayOfKeys);
}
public function without($keyOrArrayOfKeys)
{
$url = clone($this);
$url->remove($keyOrArrayOfKeys);
return $url;
}
/**
* Return a copy of this url with the given parameter(s)
*
* The argument can be either a single query parameter name or an array of parameter names to
* remove from the query list
*
* @param string|array $param A single string or an array containing parameter names
* @param array $values an optional values array
*
* @return Url
*/
public function with($param, $values = null)
{
$url = clone($this);
$url->params->mergeValues($param, $values);
return $url;
}
public function __clone()
{
$this->params = clone $this->params;
}
/**
* Alias for @see Url::getAbsoluteUrl()
*
* @return string
*/
public function __toString()
{
return $this->getAbsoluteUrl('&amp;');
}
}