dopplr wiki / Prototype PHP Client

The following is a very simple PHP client, it requires the Zend Google Data Client Library. Certainly not complete but builds the initial connection with a single use token. Based on Google Base PHP example, here.

<?php
/* Load the Zend Gdata classes. */
set_include_path(dirname(__FILE__) . '/ZendGdata-1.0.1/library');
require_once 'Zend/Loader.php';
Zend_Loader::loadClass('Zend_Gdata_AuthSub');

/**
 * We arrive here when the user first comes to the form. The first step is
 * to have them get a single-use token.
 */
function showIntroPage() {
  global $itemsFeedURL;

  $next_url = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
  $redirect_url = "https://www.dopplr.com/api/AuthSubRequest?scope=http://www.dopplr.com&next=".$next_url."&session=1";

  print '<html>' . "n";
  print '<head><title>PHP Demo: Dopplr API</title>' . "n";
  print '<link rel="stylesheet" type="text/css" href="http://code.google.com/css/dev_docs.css">' . "n";
  print '</head>' . "n";
  print '<body><center>' . "n";
  print '<table style="width:50%;">' . "n";
  print '<tr>' . "n";
  print '<th colspan="2" style="text-align:center;">PHP Demo: Dopplr API' .
        '<br><font size=-1><span style="font-variant: small-caps;">Powered By</span>' .
        ' <a href="http://framework.zend.com/download/gdata">' .
        'Zend Google Data Client Library</a></font></th>' . "n";
  print '</tr>' . "n";
  print '<tr><td>Before you get started, please <a href="' . $redirect_url . 
      '">sign in</a> to your Dopplr account.</td></tr>' . "n";
  print '</table>' . "n";
  print '</center></body></html>' . "n";
}

/**
 * We arrive here after the user first authenticates and we get back
 * a single-use token.
 */
function showFirstAuthScreen() {
  global $gdata;

  $singleUseToken = $_GET['token'];

  if (!$singleUseToken) {
    showIntroPage();
  } else {
    $tableTitle =
      'Here's your <b>single use token:</b> <code>' . $singleUseToken .
      '</code>' . "n" . '<br></code>';
    
    // Show temp output until further development
    echo $tableTitle;
  }
}

/**
 * Main logic. Take action based on the GET and POST
 * parameters, which reflect whether the user has
 * authenticated and which action they want to perform.
 */

if (count($_GET) == 1 && array_key_exists('token', $_GET)) {
  showFirstAuthScreen();
} else {
  if (count($_POST) == 0) {
    showIntroPage();
  } else {
        //
    }
}

?>

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