File Source for page.php

<?php
/**
* Base include file for SimpleTest
* @package SimpleTest
* @subpackage WebTester
* @version $Id: page.php 1672 2008-03-02 04:47:34Z edwardzyang $
*/
/**#@+
* include other SimpleTest class files
*/
require_once(dirname(__FILE__) . '/http.php');
require_once(dirname(__FILE__) . '/parser.php');
require_once(dirname(__FILE__) . '/tag.php');
require_once(dirname(__FILE__) . '/form.php');
require_once(dirname(__FILE__) . '/selector.php');
/**#@-*/
* Creates tags and widgets given HTML tag
* attributes.
* @package SimpleTest
* @subpackage WebTester
*/
class SimpleTagBuilder {
/**
* Factory for the tag objects. Creates the
* appropriate tag object for the incoming tag name
* and attributes.
* @param string $name HTML tag name.
* @param hash $attributes Element attributes.
* @return SimpleTag Tag object.
* @access public
*/
function createTag($name, $attributes) {
static $map = array(
'a' => 'SimpleAnchorTag',
'title' => 'SimpleTitleTag',
'base' => 'SimpleBaseTag',
'button' => 'SimpleButtonTag',
'textarea' => 'SimpleTextAreaTag',
'option' => 'SimpleOptionTag',
'label' => 'SimpleLabelTag',
'form' => 'SimpleFormTag',
'frame' => 'SimpleFrameTag');
$attributes = $this->_keysToLowerCase($attributes);
if (array_key_exists($name, $map)) {
$tag_class = $map[$name];
return new $tag_class($attributes);
} elseif ($name == 'select') {
return $this->_createSelectionTag($attributes);
} elseif ($name == 'input') {
return $this->_createInputTag($attributes);
}
return new SimpleTag($name, $attributes);
}
/**
* Factory for selection fields.
* @param hash $attributes Element attributes.
* @return SimpleTag Tag object.
* @access protected
*/
function _createSelectionTag($attributes) {
if (isset($attributes['multiple'])) {
return new MultipleSelectionTag($attributes);
}
return new SimpleSelectionTag($attributes);
}
/**
* Factory for input tags.
* @param hash $attributes Element attributes.
* @return SimpleTag Tag object.
* @access protected
*/
function _createInputTag($attributes) {
if (! isset($attributes['type'])) {
return new SimpleTextTag($attributes);
}
$type = strtolower(trim($attributes['type']));
$map = array(
'submit' => 'SimpleSubmitTag',
'image' => 'SimpleImageSubmitTag',
'checkbox' => 'SimpleCheckboxTag',
'radio' => 'SimpleRadioButtonTag',
'text' => 'SimpleTextTag',
'hidden' => 'SimpleTextTag',
'password' => 'SimpleTextTag',
'file' => 'SimpleUploadTag');
if (array_key_exists($type, $map)) {
$tag_class = $map[$type];
return new $tag_class($attributes);
}
return false;
}
/**
* Make the keys lower case for case insensitive look-ups.
* @param hash $map Hash to convert.
* @return hash Unchanged values, but keys lower case.
* @access private
*/
function _keysToLowerCase($map) {
$lower = array();
foreach ($map as $key => $value) {
$lower[strtolower($key)] = $value;
}
return $lower;
}
}
/**
* SAX event handler. Maintains a list of
* open tags and dispatches them as they close.
* @package SimpleTest
* @subpackage WebTester
*/
class SimplePageBuilder extends SimpleSaxListener {
var $_tags;
var $_page;
var $_private_content_tag;
/**
* Sets the builder up empty.
* @access public
*/
function SimplePageBuilder() {
$this->SimpleSaxListener();
}
/**
* Frees up any references so as to allow the PHP garbage
* collection from unset() to work.
* @access public
*/
function free() {
unset($this->_tags);
unset($this->_page);
unset($this->_private_content_tags);
}
/**
* Reads the raw content and send events
* into the page to be built.
* @param $response SimpleHttpResponse Fetched response.
* @return SimplePage Newly parsed page.
* @access public
*/
function &parse($response) {
$this->_tags = array();
$this->_page = &$this->_createPage($response);
$parser = &$this->_createParser($this);
$parser->parse($response->getContent());
$this->_page->acceptPageEnd();
return $this->_page;
}
/**
* Creates an empty page.
* @return SimplePage New unparsed page.
* @access protected
*/
function &_createPage($response) {
$page = &new SimplePage($response);
return $page;
}
/**
* Creates the parser used with the builder.
* @param $listener SimpleSaxListener Target of parser.
* @return SimpleSaxParser Parser to generate
* events for the builder.
* @access protected
*/
function &_createParser(&$listener) {
$parser = &new SimpleHtmlSaxParser($listener);
return $parser;
}
/**
* Start of element event. Opens a new tag.
* @param string $name Element name.
* @param hash $attributes Attributes without content
* are marked as true.
* @return boolean False on parse error.
* @access public
*/
function startElement($name, $attributes) {
$factory = &new SimpleTagBuilder();
$tag = $factory->createTag($name, $attributes);
if (! $tag) {
return true;
}
if ($tag->getTagName() == 'label') {
$this->_page->acceptLabelStart($tag);
$this->_openTag($tag);
return true;
}
if ($tag->getTagName() == 'form') {
$this->_page->acceptFormStart($tag);
return true;
}
if ($tag->getTagName() == 'frameset') {
$this->_page->acceptFramesetStart($tag);
return true;
}
if ($tag->getTagName() == 'frame') {
$this->_page->acceptFrame($tag);
return true;
}
if ($tag->isPrivateContent() && ! isset($this->_private_content_tag)) {
$this->_private_content_tag = &$tag;
}
if ($tag->expectEndTag()) {
$this->_openTag($tag);
return true;
}
$this->_page->acceptTag($tag);
return true;
}
/**
* End of element event.
* @param string $name Element name.
* @return boolean False on parse error.
* @access public
*/
function endElement($name) {
if ($name == 'label') {
$this->_page->acceptLabelEnd();
return true;
}
if ($name == 'form') {
$this->_page->acceptFormEnd();
return true;
}
if ($name == 'frameset') {
$this->_page->acceptFramesetEnd();
return true;
}
if ($this->_hasNamedTagOnOpenTagStack($name)) {
$tag = array_pop($this->_tags[$name]);
if ($tag->isPrivateContent() && $this->_private_content_tag->getTagName() == $name) {
unset($this->_private_content_tag);
}
$this->_addContentTagToOpenTags($tag);
$this->_page->acceptTag($tag);
return true;
}
return true;
}
/**
* Test to see if there are any open tags awaiting
* closure that match the tag name.
* @param string $name Element name.
* @return boolean True if any are still open.
* @access private
*/
function _hasNamedTagOnOpenTagStack($name) {
return isset($this->_tags[$name]) && (count($this->_tags[$name]) > 0);
}
/**
* Unparsed, but relevant data. The data is added
* to every open tag.
* @param string $text May include unparsed tags.
* @return boolean False on parse error.
* @access public
*/
function addContent($text) {
if (isset($this->_private_content_tag)) {
$this->_private_content_tag->addContent($text);
} else {
$this->_addContentToAllOpenTags($text);
}
return true;
}
/**
* Any content fills all currently open tags unless it
* is part of an option tag.
* @param string $text May include unparsed tags.
* @access private
*/
function _addContentToAllOpenTags($text) {
foreach (array_keys($this->_tags) as $name) {
for ($i = 0, $count = count($this->_tags[$name]); $i < $count; $i++) {
$this->_tags[$name][$i]->addContent($text);
}
}
}
/**
* Parsed data in tag form. The parsed tag is added
* to every open tag. Used for adding options to select
* fields only.
* @param SimpleTag $tag Option tags only.
* @access private
*/
function _addContentTagToOpenTags(&$tag) {
if ($tag->getTagName() != 'option') {
return;
}
foreach (array_keys($this->_tags) as $name) {
for ($i = 0, $count = count($this->_tags[$name]); $i < $count; $i++) {
$this->_tags[$name][$i]->addTag($tag);
}
}
}
/**
* Opens a tag for receiving content. Multiple tags
* will be receiving input at the same time.
* @param SimpleTag $tag New content tag.
* @access private
*/
function _openTag(&$tag) {
$name = $tag->getTagName();
if (! in_array($name, array_keys($this->_tags))) {
$this->_tags[$name] = array();
}
$this->_tags[$name][] = &$tag;
}
}
/**
* A wrapper for a web page.
* @package SimpleTest
* @subpackage WebTester
*/
class SimplePage {
var $_links;
var $_title;
var $_last_widget;
var $_label;
var $_left_over_labels;
var $_open_forms;
var $_complete_forms;
var $_frameset;
var $_frames;
var $_frameset_nesting_level;
var $_transport_error;
var $_raw;
var $_text;
var $_sent;
var $_headers;
var $_method;
var $_url;
var $_base = false;
var $_request_data;
/**
* Parses a page ready to access it's contents.
* @param SimpleHttpResponse $response Result of HTTP fetch.
* @access public
*/
function SimplePage($response = false) {
$this->_links = array();
$this->_title = false;
$this->_left_over_labels = array();
$this->_open_forms = array();
$this->_complete_forms = array();
$this->_frameset = false;
$this->_frames = array();
$this->_frameset_nesting_level = 0;
$this->_text = false;
if ($response) {
$this->_extractResponse($response);
} else {
$this->_noResponse();
}
}
/**
* Extracts all of the response information.
* @param SimpleHttpResponse $response Response being parsed.
* @access private
*/
function _extractResponse($response) {
$this->_transport_error = $response->getError();
$this->_raw = $response->getContent();
$this->_sent = $response->getSent();
$this->_headers = $response->getHeaders();
$this->_method = $response->getMethod();
$this->_url = $response->getUrl();
$this->_request_data = $response->getRequestData();
}
/**
* Sets up a missing response.
* @access private
*/
function _noResponse() {
$this->_transport_error = 'No page fetched yet';
$this->_raw = false;
$this->_sent = false;
$this->_headers = false;
$this->_method = 'GET';
$this->_url = false;
$this->_request_data = false;
}
/**
* Original request as bytes sent down the wire.
* @return mixed Sent content.
* @access public
*/
function getRequest() {
return $this->_sent;
}
/**
* Accessor for raw text of page.
* @return string Raw unparsed content.
* @access public
*/
function getRaw() {
return $this->_raw;
}
/**
* Accessor for plain text of page as a text browser
* would see it.
* @return string Plain text of page.
* @access public
*/
function getText() {
if (! $this->_text) {
$this->_text = SimpleHtmlSaxParser::normalise($this->_raw);
}
return $this->_text;
}
/**
* Accessor for raw headers of page.
* @return string Header block as text.
* @access public
*/
function getHeaders() {
if ($this->_headers) {
return $this->_headers->getRaw();
}
return false;
}
/**
* Original request method.
* @return string GET, POST or HEAD.
* @access public
*/
function getMethod() {
return $this->_method;
}
/**
* Original resource name.
* @return SimpleUrl Current url.
* @access public
*/
function getUrl() {
return $this->_url;
}
/**
* Base URL if set via BASE tag page url otherwise
* @return SimpleUrl Base url.
* @access public
*/
function getBaseUrl() {
return $this->_base;
}
/**
* Original request data.
* @return mixed Sent content.
* @access public
*/
function getRequestData() {
return $this->_request_data;
}
/**
* Accessor for last error.
* @return string Error from last response.
* @access public
*/
function getTransportError() {
return $this->_transport_error;
}
/**
* Accessor for current MIME type.
* @return string MIME type as string; e.g. 'text/html'
* @access public
*/
function getMimeType() {
if ($this->_headers) {
return $this->_headers->getMimeType();
}
return false;
}
/**
* Accessor for HTTP response code.
* @return integer HTTP response code received.
* @access public
*/
function getResponseCode() {
if ($this->_headers) {
return $this->_headers->getResponseCode();
}
return false;
}
/**
* Accessor for last Authentication type. Only valid
* straight after a challenge (401).
* @return string Description of challenge type.
* @access public
*/
function getAuthentication() {
if ($this->_headers) {
return $this->_headers->getAuthentication();
}
return false;
}
/**
* Accessor for last Authentication realm. Only valid
* straight after a challenge (401).
* @return string Name of security realm.
* @access public
*/
function getRealm() {
if ($this->_headers) {
return $this->_headers->getRealm();
}
return false;
}
/**
* Accessor for current frame focus. Will be
* false as no frames.
* @return array Always empty.
* @access public
*/
function getFrameFocus() {
return array();
}
/**
* Sets the focus by index. The integer index starts from 1.
* @param integer $choice Chosen frame.
* @return boolean Always false.
* @access public
*/
function setFrameFocusByIndex($choice) {
return false;
}
/**
* Sets the focus by name. Always fails for a leaf page.
* @param string $name Chosen frame.
* @return boolean False as no frames.
* @access public
*/
function setFrameFocus($name) {
return false;
}
/**
* Clears the frame focus. Does nothing for a leaf page.
* @access public
*/
function clearFrameFocus() {
}
/**
* Adds a tag to the page.
* @param SimpleTag $tag Tag to accept.
* @access public
*/
function acceptTag(&$tag) {
if ($tag->getTagName() == "a") {
$this->_addLink($tag);
} elseif ($tag->getTagName() == "base") {
$this->_setBase($tag);
} elseif ($tag->getTagName() == "title") {
$this->_setTitle($tag);
} elseif ($this->_isFormElement($tag->getTagName())) {
for ($i = 0; $i < count($this->_open_forms); $i++) {
$this->_open_forms[$i]->addWidget($tag);
}
$this->_last_widget = &$tag;
}
}
/**
* Opens a label for a described widget.
* @param SimpleFormTag $tag Tag to accept.
* @access public
*/
function acceptLabelStart(&$tag) {
$this->_label = &$tag;
unset($this->_last_widget);
}
/**
* Closes the most recently opened label.
* @access public
*/
function acceptLabelEnd() {
if (isset($this->_label)) {
if (isset($this->_last_widget)) {
$this->_last_widget->setLabel($this->_label->getText());
unset($this->_last_widget);
} else {
$this->_left_over_labels[] = SimpleTestCompatibility::copy($this->_label);
}
unset($this->_label);
}
}
/**
* Tests to see if a tag is a possible form
* element.
* @param string $name HTML element name.
* @return boolean True if form element.
* @access private
*/
function _isFormElement($name) {
return in_array($name, array('input', 'button', 'textarea', 'select'));
}
/**
* Opens a form. New widgets go here.
* @param SimpleFormTag $tag Tag to accept.
* @access public
*/
function acceptFormStart(&$tag) {
$this->_open_forms[] = &new SimpleForm($tag, $this);
}
/**
* Closes the most recently opened form.
* @access public
*/
function acceptFormEnd() {
if (count($this->_open_forms)) {
$this->_complete_forms[] = array_pop($this->_open_forms);
}
}
/**
* Opens a frameset. A frameset may contain nested
* frameset tags.
* @param SimpleFramesetTag $tag Tag to accept.
* @access public
*/
function acceptFramesetStart(&$tag) {
if (! $this->_isLoadingFrames()) {
$this->_frameset = &$tag;
}
$this->_frameset_nesting_level++;
}
/**
* Closes the most recently opened frameset.
* @access public
*/
function acceptFramesetEnd() {
if ($this->_isLoadingFrames()) {
$this->_frameset_nesting_level--;
}
}
/**
* Takes a single frame tag and stashes it in
* the current frame set.
* @param SimpleFrameTag $tag Tag to accept.
* @access public
*/
function acceptFrame(&$tag) {
if ($this->_isLoadingFrames()) {
if ($tag->getAttribute('src')) {
$this->_frames[] = &$tag;
}
}
}
/**
* Test to see if in the middle of reading
* a frameset.
* @return boolean True if inframeset.
* @access private
*/
function _isLoadingFrames() {
if (! $this->_frameset) {
return false;
}
return ($this->_frameset_nesting_level > 0);
}
/**
* Test to see if link is an absolute one.
* @param string $url Url to test.
* @return boolean True if absolute.
* @access protected
*/
function _linkIsAbsolute($url) {
$parsed = new SimpleUrl($url);
return (boolean)($parsed->getScheme() && $parsed->getHost());
}
/**
* Adds a link to the page.
* @param SimpleAnchorTag $tag Link to accept.
* @access protected
*/
function _addLink($tag) {
$this->_links[] = $tag;
}
/**
* Marker for end of complete page. Any work in
* progress can now be closed.
* @access public
*/
function acceptPageEnd() {
while (count($this->_open_forms)) {
$this->_complete_forms[] = array_pop($this->_open_forms);
}
foreach ($this->_left_over_labels as $label) {
for ($i = 0, $count = count($this->_complete_forms); $i < $count; $i++) {
$this->_complete_forms[$i]->attachLabelBySelector(
new SimpleById($label->getFor()),
$label->getText());
}
}
}
/**
* Test for the presence of a frameset.
* @return boolean True if frameset.
* @access public
*/
function hasFrames() {
return (boolean)$this->_frameset;
}
/**
* Accessor for frame name and source URL for every frame that
* will need to be loaded. Immediate children only.
* @return boolean/array False if no frameset or
* otherwise a hash of frame URLs.
* The key is either a numerical
* base one index or the name attribute.
* @access public
*/
function getFrameset() {
if (! $this->_frameset) {
return false;
}
$urls = array();
for ($i = 0; $i < count($this->_frames); $i++) {
$name = $this->_frames[$i]->getAttribute('name');
$url = new SimpleUrl($this->_frames[$i]->getAttribute('src'));
$urls[$name ? $name : $i + 1] = $this->expandUrl($url);
}
return $urls;
}
/**
* Fetches a list of loaded frames.
* @return array/string Just the URL for a single page.
* @access public
*/
function getFrames() {
$url = $this->expandUrl($this->getUrl());
return $url->asString();
}
/**
* Accessor for a list of all links.
* @return array List of urls with scheme of
* http or https and hostname.
* @access public
*/
function getUrls() {
$all = array();
foreach ($this->_links as $link) {
$url = $this->_getUrlFromLink($link);
$all[] = $url->asString();
}
return $all;
}
/**
* Accessor for URLs by the link label. Label will match
* regardess of whitespace issues and case.
* @param string $label Text of link.
* @return array List of links with that label.
* @access public
*/
function getUrlsByLabel($label) {
$matches = array();
foreach ($this->_links as $link) {
if ($link->getText() == $label) {
$matches[] = $this->_getUrlFromLink($link);
}
}
return $matches;
}
/**
* Accessor for a URL by the id attribute.
* @param string $id Id attribute of link.
* @return SimpleUrl URL with that id of false if none.
* @access public
*/
function getUrlById($id) {
foreach ($this->_links as $link) {
if ($link->getAttribute('id') === (string)$id) {
return $this->_getUrlFromLink($link);
}
}
return false;
}
/**
* Converts a link tag into a target URL.
* @param SimpleAnchor $link Parsed link.
* @return SimpleUrl URL with frame target if any.
* @access private
*/
function _getUrlFromLink($link) {
$url = $this->expandUrl($link->getHref());
if ($link->getAttribute('target')) {
$url->setTarget($link->getAttribute('target'));
}
return $url;
}
/**
* Expands expandomatic URLs into fully qualified
* URLs.
* @param SimpleUrl $url Relative URL.
* @return SimpleUrl Absolute URL.
* @access public
*/
function expandUrl($url) {
if (! is_object($url)) {
$url = new SimpleUrl($url);
}
$location = $this->getBaseUrl() ? $this->getBaseUrl() : new SimpleUrl();
return $url->makeAbsolute($location->makeAbsolute($this->getUrl()));
}
/**
* Sets the base url for the page.
* @param SimpleTag $tag Base URL for page.
* @access protected
*/
function _setBase(&$tag) {
$url = $tag->getAttribute('href');
$this->_base = new SimpleUrl($url);
}
/**
* Sets the title tag contents.
* @param SimpleTitleTag $tag Title of page.
* @access protected
*/
function _setTitle(&$tag) {
$this->_title = &$tag;
}
/**
* Accessor for parsed title.
* @return string Title or false if no title is present.
* @access public
*/
function getTitle() {
if ($this->_title) {
return $this->_title->getText();
}
return false;
}
/**
* Finds a held form by button label. Will only
* search correctly built forms.
* @param SimpleSelector $selector Button finder.
* @return SimpleForm Form object containing
* the button.
* @access public
*/
function &getFormBySubmit($selector) {
for ($i = 0; $i < count($this->_complete_forms); $i++) {
if ($this->_complete_forms[$i]->hasSubmit($selector)) {
return $this->_complete_forms[$i];
}
}
$null = null;
return $null;
}
/**
* Finds a held form by image using a selector.
* Will only search correctly built forms.
* @param SimpleSelector $selector Image finder.
* @return SimpleForm Form object containing
* the image.
* @access public
*/
function &getFormByImage($selector) {
for ($i = 0; $i < count($this->_complete_forms); $i++) {
if ($this->_complete_forms[$i]->hasImage($selector)) {
return $this->_complete_forms[$i];
}
}
$null = null;
return $null;
}
/**
* Finds a held form by the form ID. A way of
* identifying a specific form when we have control
* of the HTML code.
* @param string $id Form label.
* @return SimpleForm Form object containing the matching ID.
* @access public
*/
function &getFormById($id) {
for ($i = 0; $i < count($this->_complete_forms); $i++) {
if ($this->_complete_forms[$i]->getId() == $id) {
return $this->_complete_forms[$i];
}
}
$null = null;
return $null;
}
/**
* Sets a field on each form in which the field is
* available.
* @param SimpleSelector $selector Field finder.
* @param string $value Value to set field to.
* @return boolean True if value is valid.
* @access public
*/
function setField($selector, $value, $position=false) {
$is_set = false;
for ($i = 0; $i < count($this->_complete_forms); $i++) {
if ($this->_complete_forms[$i]->setField($selector, $value, $position)) {
$is_set = true;
}
}
return $is_set;
}
/**
* Accessor for a form element value within a page.
* @param SimpleSelector $selector Field finder.
* @return string/boolean A string if the field is
* present, false if unchecked
* and null if missing.
* @access public
*/
function getField($selector) {
for ($i = 0; $i < count($this->_complete_forms); $i++) {
$value = $this->_complete_forms[$i]->getValue($selector);
if (isset($value)) {
return $value;
}
}
return null;
}
}
?>

Documentation generated on Sun, 04 May 2008 09:21:53 -0500 by phpDocumentor 1.3.0

Source for file page.php