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index.php
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index.php
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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Gdata
* @subpackage Demos
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
/**
* Sample code to demonstrate accessing a Google Data feed using OAuth for
* authorization. Utilizes the Zend Framework Zend_OAuth components to
* communicate with the API(s).
*
* NOTE: As this is sample code, not all of the functions do full error
* handling.
*/
require_once 'Zend/Gdata/Docs.php';
require_once 'Zend/Gdata/Spreadsheets.php';
require_once 'Gdata_OAuth_Helper.php';
session_start();
// Application constants. Replace these values with your own.
$APP_NAME = 'google-ZendGData3LOSample-1.0';
$APP_URL = getAppURL();
$scopes = array(
'https://docs.google.com/feeds/',
'http://spreadsheets.google.com/feeds/'
);
// Setup OAuth consumer. Thes values should be replaced with your registered
// app's consumer key/secret.
$CONSUMER_KEY = 'anonymous';
$CONSUMER_SECRET = 'anonymous';
$consumer = new Gdata_OAuth_Helper($CONSUMER_KEY, $CONSUMER_SECRET);
// Main controller logic.
switch (@$_REQUEST['action']) {
case 'logout':
logout($APP_URL);
break;
case 'request_token':
$_SESSION['REQUEST_TOKEN'] = serialize($consumer->fetchRequestToken(
implode(' ', $scopes), $APP_URL . '?action=access_token'));
$consumer->authorizeRequestToken();
break;
case 'access_token':
$_SESSION['ACCESS_TOKEN'] = serialize($consumer->fetchAccessToken());
header('Location: ' . $APP_URL);
break;
default:
if (isset($_SESSION['ACCESS_TOKEN'])) {
$accessToken = unserialize($_SESSION['ACCESS_TOKEN']);
$httpClient = $accessToken->getHttpClient(
$consumer->getOauthOptions());
$docsService = new Zend_Gdata_Docs($httpClient, $APP_NAME);
$spreadsheetsService = new Zend_Gdata_Spreadsheets($httpClient,
$APP_NAME);
// Retrieve user's list of Google Docs and spreadsheet list.
$docsFeed = $docsService->getDocumentListFeed();
$spreadsheetFeed = $spreadsheetsService->getSpreadsheetFeed(
'http://spreadsheets.google.com/feeds/spreadsheets/private/full?max-results=100');
renderHTML($accessToken, array($docsFeed, $spreadsheetFeed));
} else {
renderHTML();
}
}
/**
* Returns a the base URL of the current running web app.
*
* @return string
*/
function getAppURL() {
$pageURL = 'http';
if ($_SERVER['HTTPS'] == 'on') {
$pageURL .= 's';
}
$pageURL .= '://';
if ($_SERVER['SERVER_PORT'] != '80') {
$pageURL .= $_SERVER['SERVER_NAME'] . ':' .
$_SERVER['SERVER_PORT'] . $_SERVER['PHP_SELF'];
} else {
$pageURL .= $_SERVER['SERVER_NAME'] . $_SERVER['PHP_SELF'];
}
return $pageURL;
}
/**
* Removes session data and redirects the user to a URL.
*
* @param string $redirectUrl The URL to direct the user to after session data
* is destroyed.
* @return void
*/
function logout($redirectUrl) {
session_destroy();
header('Location: ' . $redirectUrl);
exit;
}
/**
* Prints the token string and secret of the token passed in.
*
* @param Zend_OAuth_Token $token An access or request token object to print.
* @return void
*/
function printToken($token) {
echo '<b>Token:</b>' . $token->getToken() . '<br>';
echo '<b>Token secret:</b>' . $token->getTokenSecret() . '<br>';
}
/**
* Prints basic properties of a Google Data feed.
*
* @param Zend_Gdata_Feed $feed A feed object to print.
* @return void
*/
function printFeed($feed) {
echo '<ol>';
foreach ($feed->entries as $entry) {
$alternateLink = '';
foreach ($entry->link as $link) {
if ($link->getRel() == 'alternate') {
$alternateLink = $link->getHref();
}
}
echo "<li><a href=\"$alternateLink\" target=\"_new\">$entry->title</a></li>";
}
echo '</ol>';
}
/**
* Renders the page's HTML.
*
* @param Zend_OAuth_Token $token (optional) The user's current OAuth token.
* @param array $feeds (optional) An array of Zend_Gdata_Feed to print
* information for.
* @return void
*/
function renderHTML($token=null, $feeds=null) {
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset=utf-8 />
<link href="style.css" type="text/css" rel="stylesheet"/>
</head>
<body>
<?php if (!isset($_SESSION['ACCESS_TOKEN'])) { ?>
<button onclick="location.href='<?php echo "$APP_URL?action=request_token" ?>';">Grant Access to this app!</button>
<?php } else { ?>
<div id="token_info">
<span style="float:left;"><img src="http://code.google.com/apis/accounts/images/oauth_icon.png"></span>
<div id="token"><?php printToken($token); ?></div>
</div>
<div id="logout"><a href="<?php echo "$APP_URL?action=logout"; ?>">Logout</a></div>
<div style="clear:both;">
<div id="doclist">
<h4>First 100 documents from the <a href="http://code.google.com/apis/documents/" target="_new">Documents List Data API</a>:</h4>
<div class="feed"><?php printFeed($feeds[0]); ?></div>
</div>
<div id="spreadsheets">
<h4>First 100 spreadsheets from the <a href="http://code.google.com/apis/spreadsheets/" target="_new">Spreadsheets Data API</a>:</h4>
<div class="feed"><?php printFeed($feeds[1]); ?></div>
</div>
</div>
<?php } ?>
</body>
</html>
<?php
}