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Url.php
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Url.php
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<?php
/**
* URL object for easily manipulating URLs.
*
* This class and its properties are heavily based on parse_url()
*
* @author Mike Ems
* @package Mvied
*
*/
class Mvied_Url {
/**
* The scheme of a network host; for example, http or https
*
* @var string
*/
protected $_scheme;
/**
* The domain name of a network host, or an IPv4 address as a set of four decimal digit groups separated by literal periods; for example, www.php.net or babelfish.altavista.com
*
* @var string
*/
protected $_host;
/**
* The base domain of a network host; for example, php.net or altavista.com
*
* @var string
*/
protected $_base_host;
/**
* The port being accessed. In the URL http://www.some_host.com:443/, 443 is the port component.
*
* @var int
*/
protected $_port;
/**
* The username being passed for authentication. In the URL ftp://some_user:some_password@ftp.host.com/, some_user would be the user component.
*
* @var string
*/
protected $_user;
/**
* The password being passed for authentication. In the above example, some_password would be the pass component.
*
* @var string
*/
protected $_pass;
/**
* The path component contains the location to the requested resource on the given host. In the URL http://www.foo.com/test/test.php, /test/test.php is the path component.
*
* @var string
*/
protected $_path;
/**
* The filename, if available, is the specified resource being requested. In the URL http://www.foo.com/test/test.jpg, test.jpg is the filename.
*
* @var string
*/
protected $_filename;
/**
* The file extension of the filename, if available. In the URL http://www.foo.com/test/test.jpg, .jpg is the file extension.
*
* @var string
*/
protected $_extension;
/**
* The query string for the request. In the URL http://www.foo.com/?page=bar, page=bar is the query component.
*
* @var string
*/
protected $_query;
/**
* The fragment string for the request. In the URL http://www.foo.com/?page=bar#test, #test is the fragment component.
*
* @var string
*/
protected $_fragment;
/**
* The response body of the request.
*
* @var string
*/
protected $_content;
/**
* Set Scheme
*
* @param string $scheme
* @return object $this
*/
public function setScheme( $scheme ) {
$this->_scheme = $scheme;
return $this;
}
/**
* Get Scheme
*
* @param none
* @return string
*/
public function getScheme() {
return $this->_scheme;
}
/**
* Set Host
*
* @param string $host
* @return object $this
*/
public function setHost( $host ) {
$this->_host = $host;
return $this;
}
/**
* Get Host
*
* @param none
* @return string
*/
public function getHost() {
return $this->_host;
}
/**
* Set Base Host
*
* @param string $base_host
* @return object $this
*/
public function setBaseHost( $base_host ) {
$this->_base_host = $base_host;
return $this;
}
/**
* Gets the base host of the URL
*
* @param none
* @return string
*/
public function getBaseHost() {
$return_url = clone $this;
$test_url = clone $this;
$test_url->setPath('');
$host_parts = explode('.', $test_url->getHost());
for ( $i = 0; $i < sizeof($host_parts); $i++ ) {
$test_url->setHost( str_replace($host_parts[$i] . '.', '', $test_url->getHost()) );
if ( $test_url->isValid() ) {
$return_url = clone $test_url;
} else {
break;
}
}
return $return_url->getHost();
}
/**
* Set Port
*
* @param string $port
* @return object $this
*/
public function setPort( $port ) {
$this->_port = $port;
return $this;
}
/**
* Get Port
*
* @param none
* @return string
*/
public function getPort() {
return $this->_port;
}
/**
* Set User
*
* @param string $user
* @return object $this
*/
public function setUser( $user ) {
$this->_user = $user;
return $this;
}
/**
* Get User
*
* @param none
* @return string
*/
public function getUser() {
return $this->_user;
}
/**
* Set Pass
*
* @param string $pass
* @return object $this
*/
public function setPass( $pass ) {
$this->_pass = $pass;
return $this;
}
/**
* Get Pass
*
* @param none
* @return string
*/
public function getPass() {
return $this->_pass;
}
/**
* Set Path
*
* Ensures the path begins with a forward slash
*
* @param none
* @return string
*/
public function setPath( $path ) {
$this->_path = ltrim($path, '/');
$this->_path = '/' . $this->_path;
$filename = basename($this->_path);
$pathinfo = pathinfo($filename);
if ( $pathinfo && isset($pathinfo['extension']) ) {
$this->setExtension($pathinfo['extension']);
$this->setFilename($filename);
}
return $this;
}
/**
* Get Path
*
* Ensures the path begins with a forward slash
*
* @param none
* @return string
*/
public function getPath() {
return $this->_path;
}
/**
* Set Filename
*
* @param string $filename
* @return object $this
*/
public function setFilename( $filename ) {
$this->_filename = $filename;
return $this;
}
/**
* Get Filename
*
* @param none
* @return string
*/
public function getFilename() {
return $this->_filename;
}
/**
* Set Extension
*
* @param string $extension
* @return object $this
*/
public function setExtension( $extension ) {
$this->_extension = $extension;
return $this;
}
/**
* Get Extension
*
* @param none
* @return string
*/
public function getExtension() {
return $this->_extension;
}
/**
* Set Query
*
* @param string $query
* @return object $this
*/
public function setQuery( $query ) {
$this->_query = $query;
return $this;
}
/**
* Get Query
*
* @param none
* @return string
*/
public function getQuery() {
return $this->_query;
}
/**
* Set Fragment
*
* @param string $fragment
* @return object $this
*/
public function setFragment( $fragment ) {
$this->_fragment = $fragment;
return $this;
}
/**
* Get Fragment
*
* @param none
* @return string
*/
public function getFragment() {
return $this->_fragment;
}
/**
* Set Content
*
* @param string $content
* @return object $this
*/
public function setContent( $content ) {
$this->_content = $content;
return $this;
}
/**
* Get the contents of the URL
*
* @param boolean $verify_ssl
* @return boolean
*/
public function getContent( $verify_ssl = false ) {
if ( $this->_content ) {
return $this->_content;
}
$this->_content = false;
if ( function_exists('curl_init') ) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $this->toString());
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER["HTTP_USER_AGENT"]);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $verify_ssl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
@curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate');
$content = curl_exec($ch);
$info = curl_getinfo($ch);
curl_close($ch);
if ( isset($info['http_code']) && !( $info['http_code'] == 0 || $info['http_code'] == 404 ) ) {
$this->_content = $content;
}
}
if ( !$this->_content && @ini_get('allow_url_fopen') ) {
if ( ($content = @file_get_contents($this->toString())) !== false ) {
$this->_content = $content;
}
}
return $this->_content;
}
/**
* Validates the existence of the URL with cURL or file_get_contents()
*
* @param boolean $verify_ssl
* @return boolean
*/
public function isValid( $verify_ssl = false ) {
if ( function_exists('curl_init') ) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $this->toString());
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER["HTTP_USER_AGENT"]);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $verify_ssl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
@curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate');
$content = curl_exec($ch);
$info = curl_getinfo($ch);
curl_close($ch);
if ( !$info['http_code'] || ( $info['http_code'] == 0 || $info['http_code'] == 404 ) ) {
return false;
} else {
return true;
}
} else if ( @ini_get('allow_url_fopen') ) {
if ( @file_get_contents($url) !== false ) {
return true;
}
}
return false;
}
/**
* Compares URL objects to determine if either of them are a subdomain of the other.
*
* @param Mvied_Url $url
* @return boolean
*/
public function isSubdomain( Mvied_Url $url ) {
$this_host = $this->getBaseHost();
$other_host = $url->getBaseHost();
if ( $this_host == $other_host ) {
return true;
}
return false;
}
/**
* Factory object from an array provided by the parse_url function
*
* Example of usage:
* $site_url = Mvied_Url::fromArray( parse_url( site_url() ) );
*
* @param array $url_parts
* @return $url Mvied_Url
*/
public static function fromArray( $url_parts = array() ) {
if ( sizeof($url_parts) <= 1 ) {
return false;
}
$url = new Mvied_Url;
$url->setScheme( isset($url_parts['scheme']) ? $url_parts['scheme'] : null );
$url->setUser( isset($url_parts['user']) ? $url_parts['user'] : null );
$url->setPass( isset($url_parts['pass']) ? $url_parts['pass'] : null );
$url->setHost( isset($url_parts['host']) ? $url_parts['host'] : null );
$url->setPort( isset($url_parts['port']) ? $url_parts['port'] : null );
$url->setPath( isset($url_parts['path']) ? $url_parts['path'] : null );
$url->setQuery( isset($url_parts['query']) ? $url_parts['query'] : null );
$url->setFragment( isset($url_parts['fragment']) ? $url_parts['fragment'] : null );
return $url;
}
/**
* Factory object from a string that contains a URL
*
* Example of usage:
* $site_url = Mvied_Url::fromString( site_url() );
*
* @param string $string
* @return $url Mvied_Url
*/
public static function fromString( $string ) {
$url = new Mvied_Url;
@preg_match_all('/((http|https):\/\/[^\'"]+)[\'"\)]?/i', $string, $url_parts);
if ( isset($url_parts[1][0]) ) {
if ( $url_parts = parse_url( $url_parts[1][0] ) ) {
$url->setScheme( isset($url_parts['scheme']) ? $url_parts['scheme'] : null );
$url->setUser( isset($url_parts['user']) ? $url_parts['user'] : null );
$url->setPass( isset($url_parts['pass']) ? $url_parts['pass'] : null );
$url->setHost( isset($url_parts['host']) ? $url_parts['host'] : null );
$url->setPort( isset($url_parts['port']) ? $url_parts['port'] : null );
$url->setPath( isset($url_parts['path']) ? $url_parts['path'] : null );
$url->setQuery( isset($url_parts['query']) ? $url_parts['query'] : null );
$url->setFragment( isset($url_parts['fragment']) ? $url_parts['fragment'] : null );
return $url;
}
} else {
return false;
}
return $url;
}
/**
* Returns an array of all URL properties
*
* @param none
* @return array parse_url
*/
public function toArray() {
return parse_url( $this->toString() );
}
/**
* Formats the current URL object to a string
*
* @param none
* @return string
*/
public function toString() {
$string = ( $this->getScheme() ? $this->getScheme() . '://' : '' ) .
( $this->getUser() ? $this->getUser() . ( $this->getPass() ? ':' . $this->getPass() : '' ) . '@' : '' ) .
$this->getHost() .
( $this->getPort() ? ':' . $this->getPort() : '' ) .
$this->getPath() .
( $this->getQuery() ? '?' . $this->getQuery() : '' ) .
( $this->getFragment() ? '#' . $this->getFragment() : '' );
return $string;
}
/**
* Magic __toString method that is called when the object is casted to a string
*
* @param none
* @return string
*/
public function __toString() {
return $this->toString();
}
}