XML Feeds
Sample code to get a request token from Google through OAuth 2.0. These are snippets of code to show the request and response interaction.
This is the link to allow a user to authorize application access.
PHP:
$auth_uri='https://accounts.google.com/o/oauth2/auth?'. | |
'client_id='.$this->configs->contacts->client->id.'&'. | |
'redirect_uri='.$this->configs->contacts->redirect_uri.'&'. | |
'scope='.$this->configs->contacts->scope.'&'. | |
'response_type=code'; |
If the user authorizes access, Google gives them a token, which is referred to as an auth_code in the following code. They paste the token in the auth_code input and click a button to initiate this action.
PHP:
if ($form->getElement('auth_code')->isValid($data['auth_code'])) | |
{ | |
$client = new Zend_Http_Client($this->configs->oauth_uri, | |
array( 'maxredirects' => 0, 'timeout' => 30)); | |
$client->setMethod(Zend_Http_Client::POST); | |
$client->setHeaders('Content-Type: application/x-www-form-urlencoded'); | |
$client->setParameterPost(array( | |
'code' => $data['auth_code'], | |
'client_id' => $this->configs->contacts->client->id, | |
'client_secret' => $this->configs->contacts->client->secret, | |
'redirect_uri' => $this->configs->contacts->redirect_uri, | |
'grant_type' => 'authorization_code')); | |
$response = $client->request(); | |
$this->googlecontacts_data->last_status = $response->getStatus(); | |
if ($response->isSuccessful()) | |
{ | |
$response_data = Zend_Json::decode($response->getBody()); | |
$this->googlecontacts_data->last_auth = new Doctrine_Expression('NOW()'); | |
$this->googlecontacts_data->access_token = $response_data['access_token']; | |
$this->googlecontacts_data->expires_in = $response_data['expires_in']; | |
$this->googlecontacts_data->token_type = $response_data['token_type']; | |
$this->googlecontacts_data->refresh_token = $response_data['refresh_token']; | |
$this->googlecontacts_data->status = 'authorized'; | |
} | |
else | |
{ | |
$this->googlecontacts_data->access_token = | |
$this->googlecontacts_data->expires_in = | |
$this->googlecontacts_data->token_type = | |
$this->googlecontacts_data->refresh_token = null; | |
$this->googlecontacts_data->status = 'not_authorized'; | |
} | |
$this->save_googlecontacts_data(); |
This code uses the access or refresh token to retrieve the contacts.
PHP:
if ($this->googlecontacts_data->status == 'authorized') | |
{ | |
$client = new Zend_Http_Client($this->configs->contacts->userinfo, | |
array( 'maxredirects' => 0, 'timeout' => 30)); | |
$client->setMethod(Zend_Http_Client::GET); | |
$client->setHeaders('Authorization: Bearer '.$this->googlecontacts_data->access_token); | |
$response = $client->request(); | |
if (!$response->isSuccessful()) | |
{ | |
$client = new Zend_Http_Client($this->configs->oauth_uri, | |
array( 'maxredirects' => 0, 'timeout' => 30)); | |
$client->setMethod(Zend_Http_Client::POST); | |
$client->setHeaders('Content-Type: application/x-www-form-urlencoded'); | |
$client->setParameterPost(array( | |
'client_id' => $this->configs->contacts->client->id, | |
'client_secret' => $this->configs->contacts->client->secret, | |
'refresh_token' => $this->googlecontacts_data->refresh_token, | |
'grant_type' => 'refresh_token')); | |
$response = $client->request(); | |
} | |
$this->googlecontacts_data->last_status = $response->getStatus(); | |
if ($response->isSuccessful()) | |
{ | |
$response_data = Zend_Json::decode($response->getBody()); | |
$this->googlecontacts_data->last_auth = new Doctrine_Expression('NOW()'); | |
$this->googlecontacts_data->access_token = $response_data['access_token']; | |
$this->googlecontacts_data->expires_in = $response_data['expires_in']; | |
$this->googlecontacts_data->token_type = $response_data['token_type']; | |
$this->googlecontacts_data->auto = null; | |
$this->googlecontacts_data->deleted_at = null; | |
$this->googlecontacts_data->status = 'authorized'; | |
} | |
else | |
{ | |
$this->googlecontacts_data->access_token = | |
$this->googlecontacts_data->expires_in = | |
$this->googlecontacts_data->token_type = | |
$this->googlecontacts_data->refresh_token = | |
$this->googlecontacts_data->auto = null; | |
$this->googlecontacts_data->status = 'not_authorized'; | |
} | |
$return = $this->save_googlecontacts_data(); | |
if (!isset($return['error'])) | |
{ | |
$this->view->results = $this->get_contacts(); | |
$this->return['success'] = true; | |
} | |
} | |
else | |
$this->return['error'] = $this->status(); |
Some of the config values (other omitted for security):
oauth_uri = “https://accounts.google.com/o/oauth2/token”
contacts.uri = “https://www.google.com/m8/feeds/contacts/default/full”
contacts.scope = “https://www.google.com/m8/feeds/”
contacts.userinfo = “https://www.googleapis.com/oauth2/v1/userinfo”
.ini file settings for auth_code input. This application forces the user to cut and paste the token into the browser.
[production]
action="/contacts/google”
method="post”disableTranslator = 0
; code element
elements.auth_code.type = “ValidationTextBox”
elements.auth_code.options.label = “Authorization Code”
elements.auth_code.options.required = true
elements.auth_code.options.trim = “true”
elements.auth_code.options.class = “long”
elements.auth_code.options.validators.strlen.validator = “StringLength”
elements.auth_code.options.validators.strlen.options.min = “8″
elements.auth_code.options.validators.strlen.options.max = “100″
elements.auth_code.options.validators.regex.validator = “regex”
elements.auth_code.options.validators.regex.options.pattern = “/^[\w\/\-]{8,100}$/”
elements.auth_code.options.validators.regex.options.messages.regexInvalid = “Invalid code”
elements.auth_code.options.filters[] = “StringTrim”
elements.auth_code.options.filters[] = “StripTags”
elements.auth_code.options.filters[] = “StripNewlines”displayGroups.gcode.options.order = 10
displayGroups.gcode.options.class = “auth_code”
displayGroups.gcode.elements[] = “auth_code”
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