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<?php
/**
* Part of the Joomla Framework Uri Package
*
* @copyright Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
namespace Joomla\Uri;
/**
* Uri Class
*
* Abstract base for out uri classes.
*
* This class should be considered an implementation detail. Typehint against UriInterface.
*
* @since 1.0
*/
abstract class AbstractUri implements UriInterface
{
/**
* @var string Original URI
* @since 1.0
*/
protected $uri;
/**
* @var string Protocol
* @since 1.0
*/
protected $scheme;
/**
* @var string Host
* @since 1.0
*/
protected $host;
/**
* @var integer Port
* @since 1.0
*/
protected $port;
/**
* @var string Username
* @since 1.0
*/
protected $user;
/**
* @var string Password
* @since 1.0
*/
protected $pass;
/**
* @var string Path
* @since 1.0
*/
protected $path;
/**
* @var string Query
* @since 1.0
*/
protected $query;
/**
* @var string Anchor
* @since 1.0
*/
protected $fragment;
/**
* @var array Query variable hash
* @since 1.0
*/
protected $vars = array();
/**
* Constructor.
* You can pass a URI string to the constructor to initialise a specific URI.
*
* @param string $uri The optional URI string
*
* @since 1.0
*/
public function __construct($uri = null)
{
if ($uri !== null)
{
$this->parse($uri);
}
}
/**
* Magic method to get the string representation of the URI object.
*
* @return string
*
* @since 1.0
*/
public function __toString()
{
return $this->toString();
}
/**
* Returns full uri string.
*
* @param array $parts An array of strings specifying the parts to render.
*
* @return string The rendered URI string.
*
* @since 1.0
*/
public function toString(array $parts = array('scheme', 'user', 'pass', 'host', 'port', 'path', 'query', 'fragment'))
{
$bitmask = 0;
foreach ($parts as $part)
{
$const = 'static::' . strtoupper($part);
if (\defined($const))
{
$bitmask |= \constant($const);
}
}
return $this->render($bitmask);
}
/**
* Returns full uri string.
*
* @param integer $parts A bitmask specifying the parts to render.
*
* @return string The rendered URI string.
*
* @since 1.2.0
*/
public function render($parts = self::ALL)
{
// Make sure the query is created
$query = $this->getQuery();
$uri = '';
$uri .= $parts & static::SCHEME ? (!empty($this->scheme) ? $this->scheme . '://' : '') : '';
$uri .= $parts & static::USER ? $this->user : '';
$uri .= $parts & static::PASS ? (!empty($this->pass) ? ':' : '') . $this->pass . (!empty($this->user) ? '@' : '') : '';
$uri .= $parts & static::HOST ? $this->host : '';
$uri .= $parts & static::PORT ? (!empty($this->port) ? ':' : '') . $this->port : '';
$uri .= $parts & static::PATH ? $this->path : '';
$uri .= $parts & static::QUERY ? (!empty($query) ? '?' . $query : '') : '';
$uri .= $parts & static::FRAGMENT ? (!empty($this->fragment) ? '#' . $this->fragment : '') : '';
return $uri;
}
/**
* Checks if variable exists.
*
* @param string $name Name of the query variable to check.
*
* @return boolean True if the variable exists.
*
* @since 1.0
*/
public function hasVar($name)
{
return array_key_exists($name, $this->vars);
}
/**
* Returns a query variable by name.
*
* @param string $name Name of the query variable to get.
* @param string $default Default value to return if the variable is not set.
*
* @return mixed Value of the specified query variable.
*
* @since 1.0
*/
public function getVar($name, $default = null)
{
if (array_key_exists($name, $this->vars))
{
return $this->vars[$name];
}
return $default;
}
/**
* Returns flat query string.
*
* @param boolean $toArray True to return the query as a key => value pair array.
*
* @return string|array Query string or Array of parts in query string depending on the function param
*
* @since 1.0
*/
public function getQuery($toArray = false)
{
if ($toArray)
{
return $this->vars;
}
// If the query is empty build it first
if ($this->query === null)
{
$this->query = self::buildQuery($this->vars);
}
return $this->query;
}
/**
* Get URI scheme (protocol)
* ie. http, https, ftp, etc...
*
* @return string The URI scheme.
*
* @since 1.0
*/
public function getScheme()
{
return $this->scheme;
}
/**
* Get URI username
* Returns the username, or null if no username was specified.
*
* @return string The URI username.
*
* @since 1.0
*/
public function getUser()
{
return $this->user;
}
/**
* Get URI password
* Returns the password, or null if no password was specified.
*
* @return string The URI password.
*
* @since 1.0
*/
public function getPass()
{
return $this->pass;
}
/**
* Get URI host
* Returns the hostname/ip or null if no hostname/ip was specified.
*
* @return string The URI host.
*
* @since 1.0
*/
public function getHost()
{
return $this->host;
}
/**
* Get URI port
* Returns the port number, or null if no port was specified.
*
* @return integer The URI port number.
*
* @since 1.0
*/
public function getPort()
{
return (isset($this->port)) ? $this->port : null;
}
/**
* Gets the URI path string.
*
* @return string The URI path string.
*
* @since 1.0
*/
public function getPath()
{
return $this->path;
}
/**
* Get the URI anchor string
* Everything after the "#".
*
* @return string The URI anchor string.
*
* @since 1.0
*/
public function getFragment()
{
return $this->fragment;
}
/**
* Checks whether the current URI is using HTTPS.
*
* @return boolean True if using SSL via HTTPS.
*
* @since 1.0
*/
public function isSsl()
{
return $this->getScheme() == 'https' ? true : false;
}
/**
* Build a query from an array (reverse of the PHP parse_str()).
*
* @param array $params The array of key => value pairs to return as a query string.
*
* @return string The resulting query string.
*
* @see parse_str()
* @since 1.0
*/
protected static function buildQuery(array $params)
{
return urldecode(http_build_query($params, '', '&'));
}
/**
* Parse a given URI and populate the class fields.
*
* @param string $uri The URI string to parse.
*
* @return boolean True on success.
*
* @since 1.0
*/
protected function parse($uri)
{
// Set the original URI to fall back on
$this->uri = $uri;
/*
* Parse the URI and populate the object fields. If URI is parsed properly,
* set method return value to true.
*/
$parts = UriHelper::parse_url($uri);
$retval = ($parts) ? true : false;
// We need to replace & with & for parse_str to work right...
if (isset($parts['query']) && strpos($parts['query'], '&') !== false)
{
$parts['query'] = str_replace('&', '&', $parts['query']);
}
$this->scheme = isset($parts['scheme']) ? $parts['scheme'] : null;
$this->user = isset($parts['user']) ? $parts['user'] : null;
$this->pass = isset($parts['pass']) ? $parts['pass'] : null;
$this->host = isset($parts['host']) ? $parts['host'] : null;
$this->port = isset($parts['port']) ? $parts['port'] : null;
$this->path = isset($parts['path']) ? $parts['path'] : null;
$this->query = isset($parts['query']) ? $parts['query'] : null;
$this->fragment = isset($parts['fragment']) ? $parts['fragment'] : null;
// Parse the query
if (isset($parts['query']))
{
parse_str($parts['query'], $this->vars);
}
return $retval;
}
/**
* Resolves //, ../ and ./ from a path and returns
* the result. Eg:
*
* /foo/bar/../boo.php => /foo/boo.php
* /foo/bar/../../boo.php => /boo.php
* /foo/bar/.././/boo.php => /foo/boo.php
*
* @param string $path The URI path to clean.
*
* @return string Cleaned and resolved URI path.
*
* @since 1.0
*/
protected function cleanPath($path)
{
$path = explode('/', preg_replace('#(/+)#', '/', $path));
for ($i = 0, $n = \count($path); $i < $n; $i++)
{
if ($path[$i] == '.' || $path[$i] == '..')
{
if (($path[$i] == '.') || ($path[$i] == '..' && $i == 1 && $path[0] == ''))
{
unset($path[$i]);
$path = array_values($path);
$i--;
$n--;
}
elseif ($path[$i] == '..' && ($i > 1 || ($i == 1 && $path[0] != '')))
{
unset($path[$i], $path[$i - 1]);
$path = array_values($path);
$i -= 2;
$n -= 2;
}
}
}
return implode('/', $path);
}
}