Source for file browser.php
Documentation is available at browser.php
* Base include file for SimpleTest
* @version $Id: browser.php 1723 2008-04-08 00:34:10Z lastcraft $
* include other SimpleTest class files
require_once(dirname(__FILE__
) .
'/simpletest.php');
require_once(dirname(__FILE__
) .
'/http.php');
require_once(dirname(__FILE__
) .
'/encoding.php');
require_once(dirname(__FILE__
) .
'/page.php');
require_once(dirname(__FILE__
) .
'/selector.php');
require_once(dirname(__FILE__
) .
'/frames.php');
require_once(dirname(__FILE__
) .
'/user_agent.php');
if (!defined('DEFAULT_MAX_NESTED_FRAMES')) {
define('DEFAULT_MAX_NESTED_FRAMES', 3);
* Test for no entries yet.
* @return boolean True if empty.
* Test for being at the beginning.
* @return boolean True if first.
function _atBeginning() {
return ($this->_position ==
0) &&
! $this->_isEmpty();
* Test for being at the last entry.
* @return boolean True if last.
* Adds a successfully fetched page to the history.
* @param SimpleUrl $url URL of fetch.
* @param SimpleEncoding $parameters Any post data with the fetch.
array('url' =>
$url, 'parameters' =>
$parameters));
* Last fully qualified URL for current history
* @return SimpleUrl URL for this position.
* Parameters of last fetch from current history
* @return SimpleFormEncoding Post parameters.
* Step back one place in the history. Stops at
* @return boolean True if any previous entries.
if ($this->_isEmpty() ||
$this->_atBeginning()) {
* Step forward one place. If already at the
* latest entry then nothing will happen.
* @return boolean True if any future entries.
if ($this->_isEmpty() ||
$this->_atEnd()) {
* Ditches all future entries beyond the current
while (! $this->_atEnd()) {
* Simulated web browser. This is an aggregate of
* the user agent, the HTML parsing, request history
* and the last header set.
* Starts with a fresh browser with no
* cookie or any other state information. The
* exception is that a default proxy will be
* set up if specified in the options.
* Creates the underlying user agent.
* @return SimpleFetcher Content fetcher.
* Creates a new empty history list.
* @return SimpleBrowserHistory New list.
* Disables frames support. Frames will not be fetched
* and the frameset page will be used instead.
* Enables frames support. Frames will be fetched from
* Switches off cookie sending and recieving.
* Switches back on the cookie sending and recieving.
* Parses the raw content into a page. Will load further
* frame pages unless frames are disabled.
* @param SimpleHttpResponse $response Response from fetch.
* @param integer $depth Nested frameset depth.
* @return SimplePage Parsed HTML.
function &_parse($response, $depth =
0) {
foreach ($page->getFrameset() as $key =>
$url) {
$frameset->addFrame($frame, $key);
* Assembles the parsing machinery and actually parses
* a single page. Frees all of the builder memory and so
* unjams the PHP memory management.
* @param SimpleHttpResponse $response Response from fetch.
* @return SimplePage Parsed top level page.
$page =
&$builder->parse($response);
* Fetches a page. Jointly recursive with the _parse()
* method as it descends a frameset.
* @param string/SimpleUrl $url Target to fetch.
* @param SimpleEncoding $encoding GET/POST parameters.
* @param integer $depth Nested frameset depth protection.
* @return SimplePage Parsed page.
function &_fetch($url, $encoding, $depth =
0) {
$response =
&$this->_user_agent->fetchResponse($url, $encoding);
if ($response->isError()) {
$page =
&$this->_parse($response, $depth);
* Fetches a page or a single frame if that is the current
* @param SimpleUrl $url Target to fetch.
* @param SimpleEncoding $parameters GET/POST parameters.
* @return string Raw content of page.
function _load($url, $parameters) {
$frame =
$url->getTarget();
if (! $frame ||
! $this->_page->hasFrames() ||
(strtolower($frame) ==
'_top')) {
return $this->_loadPage($url, $parameters);
return $this->_loadFrame(array($frame), $url, $parameters);
* Fetches a page and makes it the current page/frame.
* @param string/SimpleUrl $url Target to fetch as string.
* @param SimplePostEncoding $parameters POST parameters.
* @return string Raw content of page.
function _loadPage($url, $parameters) {
$this->_page =
&$this->_fetch($url, $parameters);
$this->_page->getRequestData());
return $this->_page->getRaw();
* Fetches a frame into the existing frameset replacing the
* @param array $frames List of names to drill down.
* @param string/SimpleUrl $url Target to fetch as string.
* @param SimpleFormEncoding $parameters POST parameters.
* @return string Raw content of page.
function _loadFrame($frames, $url, $parameters) {
$page =
&$this->_fetch($url, $parameters);
$this->_page->setFrame($frames, $page);
* Removes expired and temporary cookies as if
* the browser was closed and re-opened.
* @param string/integer $date Time when session restarted.
* If omitted then all persistent
* Adds a header to every fetch.
* @param string $header Header line to add to every
* Ages the cookies by the specified time.
* @param integer $interval Amount in seconds.
* Sets an additional cookie. If a cookie has
* the same name and path it is replaced.
* @param string $name Cookie key.
* @param string $value Value of cookie.
* @param string $host Host upon which the cookie is valid.
* @param string $path Cookie path if not host wide.
* @param string $expiry Expiry date.
function setCookie($name, $value, $host =
false, $path =
'/', $expiry =
false) {
$this->_user_agent->setCookie($name, $value, $host, $path, $expiry);
* Reads the most specific cookie value from the
* @param string $host Host to search.
* @param string $path Applicable path.
* @param string $name Name of cookie to read.
* @return string False if not present, else the
return $this->_user_agent->getCookieValue($host, $path, $name);
* Reads the current cookies for the current URL.
* @param string $name Key of cookie to find.
* @return string Null if there is no current URL, false
* if the cookie is not set.
* Sets the maximum number of redirects before
* a page will be loaded anyway.
* @param integer $max Most hops allowed.
* Sets the maximum number of nesting of framed pages
* within a framed page to prevent loops.
* @param integer $max Highest depth allowed.
* Sets the socket timeout for opening a connection.
* @param integer $timeout Maximum time in seconds.
* Sets proxy to use on all requests for when
* testing from behind a firewall. Set URL
* @param string $proxy Proxy URL.
* @param string $username Proxy username for authentication.
* @param string $password Proxy password for authentication.
function useProxy($proxy, $username =
false, $password =
false) {
$this->_user_agent->useProxy($proxy, $username, $password);
* Fetches the page content with a HEAD request.
* Will affect cookies, but will not change the base URL.
* @param string/SimpleUrl $url Target to fetch as string.
* @param hash/SimpleHeadEncoding $parameters Additional parameters for
* @return boolean True if successful.
function head($url, $parameters =
false) {
$url =
$url->makeAbsolute($this->getUrl());
return ! $response->isError();
* Fetches the page content with a simple GET request.
* @param string/SimpleUrl $url Target to fetch.
* @param hash/SimpleFormEncoding $parameters Additional parameters for
* @return string Content of page or false.
function get($url, $parameters =
false) {
$url =
$url->makeAbsolute($this->getUrl());
* Fetches the page content with a POST request.
* @param string/SimpleUrl $url Target to fetch as string.
* @param hash/SimpleFormEncoding $parameters POST parameters.
* @return string Content of page.
function post($url, $parameters =
false) {
$url =
$url->makeAbsolute($this->getUrl());
* Equivalent to hitting the retry button on the
* browser. Will attempt to repeat the page fetch. If
* there is no history to repeat it will give false.
* @return string/boolean Content if fetch succeeded
$frames =
$this->_page->getFrameFocus();
if (count($frames) >
0) {
$this->_page->getRequestData());
return $this->_page->getRaw();
$this->_page =
&$this->_fetch($url, $this->_history->getParameters());
return $this->_page->getRaw();
* Equivalent to hitting the back button on the
* browser. The browser history is unchanged on
* failure. The page content is refetched as there
* is no concept of content caching in SimpleTest.
* @return boolean True if history entry and
$content =
$this->retry();
* Equivalent to hitting the forward button on the
* browser. The browser history is unchanged on
* failure. The page content is refetched as there
* is no concept of content caching in SimpleTest.
* @return boolean True if history entry and
$content =
$this->retry();
* Retries a request after setting the authentication
* @param string $username Username for realm.
* @param string $password Password for realm.
* @return boolean True if successful fetch. Note
* that authentication may still have
if (! $this->_page->getRealm()) {
$url =
$this->_page->getUrl();
$this->_page->getRealm(),
* Accessor for a breakdown of the frameset.
* @return array Hash tree of frames by name
return $this->_page->getFrames();
* Accessor for current frame focus. Will be
* false if no frame has focus.
* @return integer/string/boolean Label if any, otherwise
* the position in the frameset
return $this->_page->getFrameFocus();
* Sets the focus by index. The integer index starts from 1.
* @param integer $choice Chosen frame.
* @return boolean True if frame exists.
return $this->_page->setFrameFocusByIndex($choice);
* Sets the focus by name.
* @param string $name Chosen frame.
* @return boolean True if frame exists.
return $this->_page->setFrameFocus($name);
* Clears the frame focus. All frames will be searched
return $this->_page->clearFrameFocus();
* Accessor for last error.
* @return string Error from last response.
return $this->_page->getTransportError();
* Accessor for current MIME type.
* @return string MIME type as string; e.g. 'text/html'
return $this->_page->getMimeType();
* Accessor for last response code.
* @return integer Last HTTP response code received.
return $this->_page->getResponseCode();
* Accessor for last Authentication type. Only valid
* straight after a challenge (401).
* @return string Description of challenge type.
return $this->_page->getAuthentication();
* Accessor for last Authentication realm. Only valid
* straight after a challenge (401).
* @return string Name of security realm.
return $this->_page->getRealm();
* Accessor for current URL of page or frame if
* @return string Location of current page or frame as
$url =
$this->_page->getUrl();
return $url ?
$url->asString() :
false;
* Accessor for base URL of page if set via BASE tag
* @return string base URL
$url =
$this->_page->getBaseUrl();
return $url ?
$url->asString() :
false;
* Accessor for raw bytes sent down the wire.
* @return string Original text sent.
return $this->_page->getRequest();
* Accessor for raw header information.
* @return string Header block.
return $this->_page->getHeaders();
* Accessor for raw page information.
* @return string Original text content of web page.
return $this->_page->getRaw();
* Accessor for plain text version of the page.
* @return string Normalised text representation.
return $this->_page->getText();
* Accessor for parsed title.
* @return string Title or false if no title is present.
return $this->_page->getTitle();
* Accessor for a list of all links in current page.
* @return array List of urls with scheme of
* http or https and hostname.
return $this->_page->getUrls();
* Sets all form fields with that name.
* @param string $label Name or label of field in forms.
* @param string $value New value of field.
* @return boolean True if field exists, otherwise false.
function setField($label, $value, $position=
false) {
* Sets all form fields with that name. Will use label if
* one is available (not yet implemented).
* @param string $name Name of field in forms.
* @param string $value New value of field.
* @return boolean True if field exists, otherwise false.
* Sets all form fields with that id attribute.
* @param string/integer $id Id of field in forms.
* @param string $value New value of field.
* @return boolean True if field exists, otherwise false.
* Accessor for a form element value within the page.
* @param string $label Field label.
* @return string/boolean A value if the field is
* present, false if unchecked
* Accessor for a form element value within the page.
* @param string $name Field name.
* @return string/boolean A string if the field is
* present, false if unchecked
* Accessor for a form element value within the page.
* @param string/integer $id Id of field in forms.
* @return string/boolean A string if the field is
* present, false if unchecked
* Clicks the submit button by label. The owning
* form will be submitted by this.
* @param string $label Button label. An unlabeled
* button can be triggered by 'Submit'.
* @param hash $additional Additional form data.
* @return string/boolean Page on success.
function clickSubmit($label =
'Submit', $additional =
false) {
return ($success ?
$this->getContent() :
$success);
* Clicks the submit button by name attribute. The owning
* form will be submitted by this.
* @param string $name Button name.
* @param hash $additional Additional form data.
* @return string/boolean Page on success.
return ($success ?
$this->getContent() :
$success);
* Clicks the submit button by ID attribute of the button
* itself. The owning form will be submitted by this.
* @param string $id Button ID.
* @param hash $additional Additional form data.
* @return string/boolean Page on success.
$form->submitButton(new SimpleById($id), $additional));
return ($success ?
$this->getContent() :
$success);
* Tests to see if a submit button exists with this
* @param string $label Button label.
* @return boolean True if present.
* Clicks the submit image by some kind of label. Usually
* the alt tag or the nearest equivalent. The owning
* form will be submitted by this. Clicking outside of
* the boundary of the coordinates will result in
* @param string $label ID attribute of button.
* @param integer $x X-coordinate of imaginary click.
* @param integer $y Y-coordinate of imaginary click.
* @param hash $additional Additional form data.
* @return string/boolean Page on success.
function clickImage($label, $x =
1, $y =
1, $additional =
false) {
$form->submitImage(new SimpleByLabel($label), $x, $y, $additional));
return ($success ?
$this->getContent() :
$success);
* Clicks the submit image by the name. Usually
* the alt tag or the nearest equivalent. The owning
* form will be submitted by this. Clicking outside of
* the boundary of the coordinates will result in
* @param string $name Name attribute of button.
* @param integer $x X-coordinate of imaginary click.
* @param integer $y Y-coordinate of imaginary click.
* @param hash $additional Additional form data.
* @return string/boolean Page on success.
$form->submitImage(new SimpleByName($name), $x, $y, $additional));
return ($success ?
$this->getContent() :
$success);
* Clicks the submit image by ID attribute. The owning
* form will be submitted by this. Clicking outside of
* the boundary of the coordinates will result in
* @param integer/string $id ID attribute of button.
* @param integer $x X-coordinate of imaginary click.
* @param integer $y Y-coordinate of imaginary click.
* @param hash $additional Additional form data.
* @return string/boolean Page on success.
$form->submitImage(new SimpleById($id), $x, $y, $additional));
return ($success ?
$this->getContent() :
$success);
* Tests to see if an image exists with this
* @param string $label Image text.
* @return boolean True if present.
* Submits a form by the ID.
* @param string $id The form ID. No submit button value
* @return string/boolean Page on success.
if (! ($form =
&$this->_page->getFormById($id))) {
return ($success ?
$this->getContent() :
$success);
* Finds a URL by label. Will find the first link
* found with this link text by default, or a later
* one if an index is given. The match ignores case and
* @param string $label Text between the anchor tags.
* @param integer $index Link position counting from zero.
* @return string/boolean URL on success.
function getLink($label, $index =
0) {
$urls =
$this->_page->getUrlsByLabel($label);
if (count($urls) <
$index +
1) {
* Follows a link by label. Will click the first link
* found with this link text by default, or a later
* one if an index is given. The match ignores case and
* @param string $label Text between the anchor tags.
* @param integer $index Link position counting from zero.
* @return string/boolean Page on success.
$url =
$this->getLink($label, $index);
* Finds a link by id attribute.
* @param string $id ID attribute value.
* @return string/boolean URL on success.
return $this->_page->getUrlById($id);
* Follows a link by id attribute.
* @param string $id ID attribute value.
* @return string/boolean Page on success.
* Clicks a visible text item. Will first try buttons,
* then links and then images.
* @param string $label Visible text or alt text.
* @return string/boolean Raw page or false.
* Tests to see if a click target exists.
* @param string $label Visible text or alt text.
* @return boolean True if target present.
Documentation generated on Sun, 04 May 2008 09:21:19 -0500 by phpDocumentor 1.3.0