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+<?php
+ /**
+ * base include file for SimpleTest
+ * @package SimpleTest
+ * @subpackage WebTester
+ * @version $Id: url.php,v 1.22 2005/02/02 23:25:23 lastcraft Exp $
+ */
+
+ /**#@+
+ * include other SimpleTest class files
+ */
+ require_once(dirname(__FILE__) . '/encoding.php');
+ /**#@-*/
+
+ /**
+ * URL parser to replace parse_url() PHP function which
+ * got broken in PHP 4.3.0. Adds some browser specific
+ * functionality such as expandomatics.
+ * Guesses a bit trying to separate the host from
+ * the path.
+ * @package SimpleTest
+ * @subpackage WebTester
+ */
+ class SimpleUrl {
+ protected $_scheme;
+ protected $_username;
+ protected $_password;
+ protected $_host;
+ protected $_port;
+ protected $_path;
+ protected $_request;
+ protected $_fragment;
+ protected $_target;
+
+ /**
+ * Constructor. Parses URL into sections.
+ * @param string $url Incoming URL.
+ * @access public
+ */
+ function SimpleUrl($url) {
+ list($x, $y) = $this->_chompCoordinates($url);
+ $this->_scheme = $this->_chompScheme($url);
+ list($this->_username, $this->_password) = $this->_chompLogin($url);
+ $this->_host = $this->_chompHost($url);
+ $this->_port = false;
+ if (preg_match('/(.*?):(.*)/', $this->_host, $host_parts)) {
+ $this->_host = $host_parts[1];
+ $this->_port = (integer)$host_parts[2];
+ }
+ $this->_path = $this->_chompPath($url);
+ $this->_request = $this->_parseRequest($this->_chompRequest($url));
+ $this->_request->setCoordinates($x, $y);
+ $this->_fragment = (strncmp($url, "#", 1) == 0 ? substr($url, 1) : false);
+ $this->_target = false;
+ }
+
+ /**
+ * Extracts the X, Y coordinate pair from an image map.
+ * @param string $url URL so far. The coordinates will be
+ * removed.
+ * @return array X, Y as a pair of integers.
+ * @access private
+ */
+ function _chompCoordinates($url) {
+ if (preg_match('/(.*)\?(\d+),(\d+)$/', $url, $matches)) {
+ $url = $matches[1];
+ return array((integer)$matches[2], (integer)$matches[3]);
+ }
+ return array(false, false);
+ }
+
+ /**
+ * Extracts the scheme part of an incoming URL.
+ * @param string $url URL so far. The scheme will be
+ * removed.
+ * @return string Scheme part or false.
+ * @access private
+ */
+ function _chompScheme($url) {
+ if (preg_match('/(.*?):(\/\/)(.*)/', $url, $matches)) {
+ $url = $matches[2] . $matches[3];
+ return $matches[1];
+ }
+ return false;
+ }
+
+ /**
+ * Extracts the username and password from the
+ * incoming URL. The // prefix will be reattached
+ * to the URL after the doublet is extracted.
+ * @param string $url URL so far. The username and
+ * password are removed.
+ * @return array Two item list of username and
+ * password. Will urldecode() them.
+ * @access private
+ */
+ function _chompLogin($url) {
+ $prefix = '';
+ if (preg_match('/(\/\/)(.*)/', $url, $matches)) {
+ $prefix = $matches[1];
+ $url = $matches[2];
+ }
+ if (preg_match('/(.*?)@(.*)/', $url, $matches)) {
+ $url = $prefix . $matches[2];
+ $parts = split(":", $matches[1]);
+ return array(
+ urldecode($parts[0]),
+ isset($parts[1]) ? urldecode($parts[1]) : false);
+ }
+ $url = $prefix . $url;
+ return array(false, false);
+ }
+
+ /**
+ * Extracts the host part of an incoming URL.
+ * Includes the port number part. Will extract
+ * the host if it starts with // or it has
+ * a top level domain or it has at least two
+ * dots.
+ * @param string $url URL so far. The host will be
+ * removed.
+ * @return string Host part guess or false.
+ * @access private
+ */
+ function _chompHost($url) {
+ if (preg_match('/(\/\/)(.*?)(\/.*|\?.*|#.*|$)/', $url, $matches)) {
+ $url = $matches[3];
+ return $matches[2];
+ }
+ if (preg_match('/(.*?)(\.\.\/|\.\/|\/|\?|#|$)(.*)/', $url, $matches)) {
+ $tlds = SimpleUrl::getAllTopLevelDomains();
+ if (preg_match('/[a-z0-9\-]+\.(' . $tlds . ')/i', $matches[1])) {
+ $url = $matches[2] . $matches[3];
+ return $matches[1];
+ } elseif (preg_match('/[a-z0-9\-]+\.[a-z0-9\-]+\.[a-z0-9\-]+/i', $matches[1])) {
+ $url = $matches[2] . $matches[3];
+ return $matches[1];
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Extracts the path information from the incoming
+ * URL. Strips this path from the URL.
+ * @param string $url URL so far. The host will be
+ * removed.
+ * @return string Path part or '/'.
+ * @access private
+ */
+ function _chompPath($url) {
+ if (preg_match('/(.*?)(\?|#|$)(.*)/', $url, $matches)) {
+ $url = $matches[2] . $matches[3];
+ return ($matches[1] ? $matches[1] : '');
+ }
+ return '';
+ }
+
+ /**
+ * Strips off the request data.
+ * @param string $url URL so far. The request will be
+ * removed.
+ * @return string Raw request part.
+ * @access private
+ */
+ function _chompRequest($url) {
+ if (preg_match('/\?(.*?)(#|$)(.*)/', $url, $matches)) {
+ $url = $matches[2] . $matches[3];
+ return $matches[1];
+ }
+ return '';
+ }
+
+ /**
+ * Breaks the request down into an object.
+ * @param string $raw Raw request.
+ * @return SimpleFormEncoding Parsed data.
+ * @access private
+ */
+ function _parseRequest($raw) {
+ $request = new SimpleFormEncoding();
+ foreach (split("&", $raw) as $pair) {
+ if (preg_match('/(.*?)=(.*)/', $pair, $matches)) {
+ $request->add($matches[1], urldecode($matches[2]));
+ } elseif ($pair) {
+ $request->add($pair, '');
+ }
+ }
+ return $request;
+ }
+
+ /**
+ * Accessor for protocol part.
+ * @param string $default Value to use if not present.
+ * @return string Scheme name, e.g "http".
+ * @access public
+ */
+ function getScheme($default = false) {
+ return $this->_scheme ? $this->_scheme : $default;
+ }
+
+ /**
+ * Accessor for user name.
+ * @return string Username preceding host.
+ * @access public
+ */
+ function getUsername() {
+ return $this->_username;
+ }
+
+ /**
+ * Accessor for password.
+ * @return string Password preceding host.
+ * @access public
+ */
+ function getPassword() {
+ return $this->_password;
+ }
+
+ /**
+ * Accessor for hostname and port.
+ * @param string $default Value to use if not present.
+ * @return string Hostname only.
+ * @access public
+ */
+ function getHost($default = false) {
+ return $this->_host ? $this->_host : $default;
+ }
+
+ /**
+ * Accessor for top level domain.
+ * @return string Last part of host.
+ * @access public
+ */
+ function getTld() {
+ $path_parts = pathinfo($this->getHost());
+ return (isset($path_parts['extension']) ? $path_parts['extension'] : false);
+ }
+
+ /**
+ * Accessor for port number.
+ * @return integer TCP/IP port number.
+ * @access public
+ */
+ function getPort() {
+ return $this->_port;
+ }
+
+ /**
+ * Accessor for path.
+ * @return string Full path including leading slash if implied.
+ * @access public
+ */
+ function getPath() {
+ if (! $this->_path && $this->_host) {
+ return '/';
+ }
+ return $this->_path;
+ }
+
+ /**
+ * Accessor for page if any. This may be a
+ * directory name if ambiguious.
+ * @return Page name.
+ * @access public
+ */
+ function getPage() {
+ if (! preg_match('/([^\/]*?)$/', $this->getPath(), $matches)) {
+ return false;
+ }
+ return $matches[1];
+ }
+
+ /**
+ * Gets the path to the page.
+ * @return string Path less the page.
+ * @access public
+ */
+ function getBasePath() {
+ if (! preg_match('/(.*\/)[^\/]*?$/', $this->getPath(), $matches)) {
+ return false;
+ }
+ return $matches[1];
+ }
+
+ /**
+ * Accessor for fragment at end of URL after the "#".
+ * @return string Part after "#".
+ * @access public
+ */
+ function getFragment() {
+ return $this->_fragment;
+ }
+
+ /**
+ * Accessor for horizontal image coordinate.
+ * @return integer X value.
+ * @access public
+ */
+ function getX() {
+ return $this->_request->getX();
+ }
+
+ /**
+ * Accessor for vertical image coordinate.
+ * @return integer Y value.
+ * @access public
+ */
+ function getY() {
+ return $this->_request->getY();
+ }
+
+ /**
+ * Accessor for current request parameters
+ * in URL string form
+ * @return string Form is string "?a=1&b=2", etc.
+ * @access public
+ */
+ function getEncodedRequest() {
+ $encoded = $this->_request->asString();
+ if ($encoded) {
+ return '?' . preg_replace('/^\?/', '', $encoded);
+ }
+ return '';
+ }
+
+ /**
+ * Adds an additional parameter to the request.
+ * @param string $key Name of parameter.
+ * @param string $value Value as string.
+ * @access public
+ */
+ function addRequestParameter($key, $value) {
+ $this->_request->add($key, $value);
+ }
+
+ /**
+ * Adds additional parameters to the request.
+ * @param hash/SimpleFormEncoding $parameters Additional
+ * parameters.
+ * @access public
+ */
+ function addRequestParameters($parameters) {
+ $this->_request->merge($parameters);
+ }
+
+ /**
+ * Clears down all parameters.
+ * @access public
+ */
+ function clearRequest() {
+ $this->_request = new SimpleFormEncoding();
+ }
+
+ /**
+ * Sets image coordinates. Set to flase to clear
+ * them.
+ * @param integer $x Horizontal position.
+ * @param integer $y Vertical position.
+ * @access public
+ */
+ function setCoordinates($x = false, $y = false) {
+ $this->_request->setCoordinates($x, $y);
+ }
+
+ /**
+ * Gets the frame target if present. Although
+ * not strictly part of the URL specification it
+ * acts as similarily to the browser.
+ * @return boolean/string Frame name or false if none.
+ * @access public
+ */
+ function getTarget() {
+ return $this->_target;
+ }
+
+ /**
+ * Attaches a frame target.
+ * @param string $frame Name of frame.
+ * @access public
+ */
+ function setTarget($frame) {
+ $this->_target = $frame;
+ }
+
+ /**
+ * Renders the URL back into a string.
+ * @return string URL in canonical form.
+ * @access public
+ */
+ function asString() {
+ $scheme = $identity = $host = $path = $encoded = $fragment = '';
+ if ($this->_username && $this->_password) {
+ $identity = $this->_username . ':' . $this->_password . '@';
+ }
+ if ($this->getHost()) {
+ $scheme = $this->getScheme() ? $this->getScheme() : 'http';
+ $host = $this->getHost();
+ }
+ if (substr($this->_path, 0, 1) == '/') {
+ $path = $this->normalisePath($this->_path);
+ }
+ $encoded = $this->getEncodedRequest();
+ $fragment = $this->getFragment() ? '#'. $this->getFragment() : '';
+ return "$scheme://$identity$host$path$encoded$fragment";
+ }
+
+ /**
+ * Replaces unknown sections to turn a relative
+ * URL into an absolute one. The base URL can
+ * be either a string or a SimpleUrl object.
+ * @param string/SimpleUrl $base Base URL.
+ * @access public
+ */
+ function makeAbsolute($base) {
+ if (! is_object($base)) {
+ $base = new SimpleUrl($base);
+ }
+ $scheme = $this->getScheme() ? $this->getScheme() : $base->getScheme();
+ $host = $this->getHost() ? $this->getHost() : $base->getHost();
+ $port = $this->_extractAbsolutePort($base);
+ $path = $this->normalisePath($this->_extractAbsolutePath($base));
+ $identity = $this->_getIdentity() ? $this->_getIdentity() . '@' : '';
+ $encoded = $this->getEncodedRequest();
+ $fragment = $this->getFragment() ? '#'. $this->getFragment() : '';
+ return new SimpleUrl("$scheme://$identity$host$port$path$encoded$fragment");
+ }
+
+ /**
+ * Extracts the port from the base URL if it's needed, but
+ * not present, in the current URL.
+ * @param string/SimpleUrl $base Base URL.
+ * @param string Absolute port number.
+ * @access private
+ */
+ function _extractAbsolutePort($base) {
+ if ($this->getHost()) {
+ return ($this->getPort() ? ':' . $this->getPort() : '');
+ }
+ return ($base->getPort() ? ':' . $base->getPort() : '');
+ }
+
+ /**
+ * Replaces unknown sections of the path with base parts
+ * to return a complete absolute one.
+ * @param string/SimpleUrl $base Base URL.
+ * @param string Absolute path.
+ * @access private
+ */
+ function _extractAbsolutePath($base) {
+ if ($this->getHost()) {
+ return $this->_path;
+ }
+ if (! $this->_isRelativePath($this->_path)) {
+ return $this->_path;
+ }
+ if ($this->_path) {
+ return $base->getBasePath() . $this->_path;
+ }
+ return $base->getPath();
+ }
+
+ /**
+ * Simple test to see if a path part is relative.
+ * @param string $path Path to test.
+ * @return boolean True if starts with a "/".
+ * @access private
+ */
+ function _isRelativePath($path) {
+ return (substr($path, 0, 1) != '/');
+ }
+
+ /**
+ * Extracts the username and password for use in rendering
+ * a URL.
+ * @return string/boolean Form of username:password@ or false.
+ * @access private
+ */
+ function _getIdentity() {
+ if ($this->_username && $this->_password) {
+ return $this->_username . ':' . $this->_password;
+ }
+ return false;
+ }
+
+ /**
+ * Replaces . and .. sections of the path.
+ * @param string $path Unoptimised path.
+ * @return string Path with dots removed if possible.
+ * @access public
+ */
+ function normalisePath($path) {
+ $path = preg_replace('|/[^/]+/\.\./|', '/', $path);
+ return preg_replace('|/\./|', '/', $path);
+ }
+
+ /**
+ * A pipe seperated list of all TLDs that result in two part
+ * domain names.
+ * @return string Pipe separated list.
+ * @access public
+ * @static
+ */
+ function getAllTopLevelDomains() {
+ return 'com|edu|net|org|gov|mil|int|biz|info|name|pro|aero|coop|museum';
+ }
+ }
+?> \ No newline at end of file
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