/**
* Overall AJAX handler
*
* This is the only entry point. Checks user permissions and request parameters.
* Redirects to appropriate function.
*/
function gdocs_ajax_handler()
{
/**
* Data regarding current user
* @global mixed object containing user data
* @name $userdata
*/
global $userdata;
get_currentuserinfo();
if ($userdata->user_level < 8) {
// insufficient rights
header('HTTP/1.0 403 Forbidden');
$error = 'You do not have sufficient access rights to use this plugin.';
header('X-JSON: (' . json_encode($error) . ')');
die;
return NULL;
}
// check if action is set
$action = NULL;
if (isset($_POST['method'])) {
$action = $_POST['method'];
// execute
$func = 'gdocs_' . $action;
try {
@$func();
} catch (Zend_Http_Client_Adapter_Exception $e) {
// connnection problem , probably proxy
$error = "A connection error has occurred. Are you behind a proxy?";
header('HTTP/1.0 400 Bad Request');
header('X-JSON: (' . json_encode($error) . ')');
} catch (Zend_Gdata_App_CaptchaRequiredException $e) {
// google requested captcha
$error = GDisplay::printCaptchaError($e);
header('HTTP/1.0 400 Bad Request');
header('X-JSON: (' . json_encode($error) . ')');
} catch (Zend_Gdata_App_AuthException $e) {
// google docs login problem
if (!get_option('gdocs_user') || !get_option('gdocs_pwd')) {
$error = "Please enter your username and password in the plugin configuration form under <em>Settings</em>.";
} else {
$error = "The plugin was unable to login to the Google service. Did you give us the wrong password/username?";
}
header('HTTP/1.0 400 Bad Request');
header('X-JSON: (' . json_encode($error) . ')');
} catch (Zend_Gdata_App_HttpException $e) {
// HTTP Error
$error = "A HTTP error has occurred: " . $e->getMessage() . ". Please contact the plugin author with <a href='" . GDOCS_ADDRESS . "/cache/error.log.php'><em>error.log.php</em></a> for assistance.";
header('HTTP/1.0 502 Bad Gateway');
header('X-JSON: (' . json_encode($error) . ')');
@gdocs_error($e);
} catch (Exception $e) {
$error = "An error has occurred: " . $e->getMessage() . ". Please contact the plugin author with <a href='" . GDOCS_ADDRESS . "/cache/error.log.php'><em>error.log.php</em></a> for assistance.";
header('HTTP/1.0 400 Bad Request');
header('X-JSON: (' . json_encode($error) . ')');
@gdocs_error($e);
}
} else {
// missing paramter
$error = "Required parameters missing.";
header('HTTP/1.0 400 Bad Request');
header('X-JSON: (' . json_encode($error) . ')');
die;
return NULL;
}
die;
}
/**
* Prints postbox
*/
function gdocs_helper()
{
GDisplay::printHelper(GDB::read());
}
/**
* Print table
*/
protected function printBody()
{
// get GData client
$gClient = GClient::getInstance(GDOCS_SPREADSHEET);
// get cell entry
$entry = $gClient->getCell($this->atts['st_id'], $this->atts['wt_id'], $this->atts['cell_id']);
if (!$entry) {
throw new Exception();
}
// format
return GDisplay::printCell($entry);
}
