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<?php
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declare(strict_types=1);
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defined('BASEPATH') OR exit('No direct script access allowed');
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class GMail {
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const AUTH_URL = 'https://accounts.google.com/o/oauth2/auth';
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const TOKEN_URL = 'https://www.googleapis.com/oauth2/v4/token';
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const API = 'https://www.googleapis.com/gmail/v1/users/';
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const HTTP_CODE = 'http_code';
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const PACKAGE = 'francis94c/ci-gmail';
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private $clientId;
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private $clientSecret;
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private $redirectUri = 'urn:ietf:wg:oauth:2.0:oob';
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private $token;
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private $userAgent = 'CodeIgniter GMail API';
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private $lastResponse;
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private $lastResponseCode;
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function __construct($params=null)
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{
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get_instance()->load->splint('francis94c/ci-gmail', '%curl');
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get_instance()->load->splint('francis94c/ci-gmail', '%base64');
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if ($params != null) $this->init($params);
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spl_autoload_register(function($name) {
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if (file_exists(APPPATH.'splints/'.self::PACKAGE."/libraries/$name.php")) {
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require(APPPATH.'splints/'.self::PACKAGE."/libraries/$name.php");
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}
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});
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}
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/**
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* [init Initialize library with cofigs. Can be called multiple times to set
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* config items]
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* @param array $config Associative Config Array.
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*/
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public function init(array $config):void {
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$this->clientId = $config['client_id'] ?? $this->clientId;
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$this->clientSecret = $config['client_secret'] ?? $this->clientSecret;
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$this->redirectUri = $config['redirect_uri'] ?? $this->redirectUri;
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}
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/**
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* [setAccessToken description]
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* @param string $token [description]
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*/
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public function setAccessToken(string $token):void {
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$this->token = $token;
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}
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/**
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* [getClientId Get Client ID.]
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* @return null|string Client ID.
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*/
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public function getClientId():?string {
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return $this->clientId;
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}
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/**
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* [getAuthorizeUrl Gets/composes the authorize url to direct users to so they
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* can give your application access to their GMail accounts
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* based on the given scopes.]
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* @param string $scope Access Scope.
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* @param string $redirectUri URL to redirect to after access is granted.
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* @param string $responseType Response type. 'code' by default.
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* @param bool $prompt Add the prompt=consent query to the URL.
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* @return string Authorize URL
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*/
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public function getAuthorizeUrl(string $scope, string $redirectUri=null,
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string $responseType='code', string $accessType='offline', bool $prompt=false):string
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{
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$redirectUri = $redirectUri ?? $this->redirectUri;
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if ($scope == null) throw new Exception("GMail scope cannot be null");
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$params = [
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'client_id' => $this->clientId,
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'redirect_uri' => $redirectUri,
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'scope' => $scope,
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'response_type' => $responseType,
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'access_type' => $accessType
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];
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if ($prompt) $params['prompt'] = 'consent';
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return self::AUTH_URL . build_url_query($params, false);
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}
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/**
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* [getToken description]
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* @param string $code [description]
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* @return [type] [description]
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*/
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public function getToken(string $code, string $redirectUri=null):?object
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{
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$redirectUri = $redirectUri ?? $this->redirectUri;
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$ch = curl_init(self::TOKEN_URL);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLINFO_HEADER_OUT, true);
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if (ENVIRONMENT == 'development') {
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
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}
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$body = http_build_query([
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'code' => $code,
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'client_id' => $this->clientId,
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'client_secret' => $this->clientSecret,
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'redirect_uri' => $redirectUri,
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'grant_type' => 'authorization_code'
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]);
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$header = [
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'Content-Type: application/x-www-form-urlencoded',
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'Content-Length: ' . strlen($body)
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];
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curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
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curl_setopt($ch, CURLOPT_USERAGENT, $this->userAgent);
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// Request Method and Body.
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curl_setopt($ch, CURLOPT_POST, true);
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curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
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$response = curl_exec($ch);
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$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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$this->lastResponse = $response;
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$this->lastResponseCode = $code;
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if ($response !== false) return $this->process_response($code, $response);
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return null;
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}
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/**
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* [refreshAccessToken description]
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* @param string $refreshToken [description]
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* @return [type] [description]
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*/
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public function refreshAccessToken(string $refreshToken):?object
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{
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$ch = curl_init(self::TOKEN_URL);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLINFO_HEADER_OUT, true);
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if (ENVIRONMENT == 'development') {
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
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}
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$body = http_build_query([
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'refresh_token' => $refreshToken,
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'client_id' => $this->clientId,
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'client_secret' => $this->clientSecret,
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'grant_type' => 'refresh_token'
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]);
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$header = [
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'Content-Type: application/x-www-form-urlencoded',
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'Content-Length: ' . strlen($body)
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];
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curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
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curl_setopt($ch, CURLOPT_USERAGENT, $this->userAgent);
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// Request Method and Body.
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curl_setopt($ch, CURLOPT_POST, true);
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curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
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// Exec.
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$response = curl_exec($ch);
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$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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$this->lastResponse = $response;
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$this->lastResponseCode = $code;
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if ($response !== false) return $this->process_response($code, $response);
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return null;
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}
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/**
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* [getProfile Get user's profile
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* see https://developers.google.com/gmail/api/v1/reference/users/getProfile]
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* @param string $user [description]
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* @return [type] [description]
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*/
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public function getProfile(string $user='me'):?object
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{
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list($code, $response) = (new GMailCURL(GMailCURL::GET))(
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self::API . "$user/profile",
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["Authorization: Bearer $this->token"]
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);
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$this->lastResponse = $response;
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$this->lastResponseCode = $code;
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if ($response !== false) return $this->process_response($code, $response);
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return null;
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}
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/**
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* [watch Causes push notifications to be sent on events which occur in the
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* user's mailbox. Requires Google Cloud PubSub.
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* see https://developers.google.com/gmail/api/v1/reference/users/watch]
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* @param string $topic Topic to push events to.
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* @param mixed $labelIds Narrow down labels in the mailbox, whose
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* mailbox event, are being listened to.
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* events are to be listened to.
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* @param string $userId The ID/Email address of the user.
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* @param string $labelFilterAction [description]
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* @return [type] [description]
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*/
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public function watch(string $topic, $labelIds=null, string $userId='me',
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string $labelFilterAction='include'):?object
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{
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$body = [
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'topicName' => $topic,
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'labelFilterAction' => $labelFilterAction
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];
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if ($labelIds != null) {
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if (is_scalar($labelIds)) {
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$body['labelIds'] = [$labelIds];
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} elseif (is_array($labelIds)) {
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$body['labelIds'] = $labelIds;
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}
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}
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list($code, $response) = (new GMailCURL(GMailCURL::POST))(
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self::API . "$userId/watch",
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["Authorization: Bearer $this->token"],
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$body
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);
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$this->lastResponse = $response;
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$this->lastResponseCode = $code;
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if ($response !== false) return $this->process_response($code, $response);
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return null;
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}
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/**
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* [endWatch stop watch operations on given email ID]
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* @date 2019-11-20
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* @param string $userId ID or Email Address of the user.
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* @return bool [description]
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*/
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public function endWatch(string $userId='me'):bool
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{
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list($code, $response) = (new GMailCURL(GMailCURL::POST))(
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self::API . "$userId/stop",
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["Authorization: Bearer $this->token"]
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);
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$this->lastResponse = $response;
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$this->lastResponseCode = $code;
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if ($response !== false) return $code == 204;
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return false;
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}
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/**
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* [getLabels description]
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* @date 2019-11-20
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* @param string $userID [description]
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* @return null|array [description]
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*/
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public function getLabels(string $userId='me'):?array
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{
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list($code, $response) = (new GMailCURL(GMailCURL::GET))(
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self::API . "$userId/labels",
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["Authorization: Bearer $this->token"]
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);
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$this->lastResponse = $response;
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$this->lastResponseCode = $code;
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if ($response !== false) {
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return json_decode($response)->labels;
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}
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return null;
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}
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/**
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* [getMessages description]
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* @date 2019-11-21
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* @param string $userId [description]
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* @param [type] $labelIds [description]
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* @param [type] $q [description]
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* @param [type] $maxMessages [description]
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* @param [type] $pageToken [description]
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* @param boolean $includeSpamTrash [description]
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* @param [type] $truncateAfter [description]
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* @return [type] [description]
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263
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*/
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264
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public function getMessages(string $userId='me', array $labelIds=null,
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string $q=null, int $maxMessages=null, string $pageToken=null, bool $includeSpamTrash=false,
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$truncateAfter=null):?object
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{
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268
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$query = [];
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270
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if ($labelIds) $query['labelIds'] = $labelIds;
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if ($includeSpamTrash) $query['includeSpamTrash'] = $includeSpamTrash;
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if ($q) $query['q'] = $q;
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if ($pageToken) $query['pageToken'] = $pageToken;
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if ($maxMessages) $query['maxResults'] = $maxMessages;
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276
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list($code, $response) = (new GMailCURL(GMailCURL::GET))(
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self::API . "$userId/messages" . build_url_query($query),
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["Authorization: Bearer $this->token"]
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);
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$this->lastResponse = $response;
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$this->lastResponseCode = $code;
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284
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if ($response !== false) {
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285
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if ($truncateAfter != null && $code == 200) {
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$response = json_decode($response);
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if ($response->messages) {
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$response->messages = array_filter($response->messages, function ($e) use ($truncateAfter) {
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return strcmp($truncateAfter, $e->id) < 0;
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});
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}
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292
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$response->{self::HTTP_CODE} = $code;
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return $response;
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}
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295
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296
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return $this->process_response($code, $response);
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}
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298
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299
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return null;
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300
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}
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301
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302
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/**
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303
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* [getLastMessageId description]
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304
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* @date 2020-03-08
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305
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* @return string|null [description]
|
306
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*/
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307
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public function getLastMessageId():?string
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308
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|
|
{
|
309
|
|
|
$messages = $this->getMessages();
|
310
|
|
|
return $messages->messages[0]->id ?? null;
|
311
|
|
|
}
|
312
|
|
|
|
313
|
|
|
/**
|
314
|
|
|
* [getMessage description]
|
315
|
|
|
* @date 2019-11-21
|
316
|
|
|
* @param string $userId [description]
|
317
|
|
|
* @param string $messageId [description]
|
318
|
|
|
* @param string $format [description]
|
319
|
|
|
* @param [type] $metadataHeaders [description]
|
|
|
|
|
320
|
|
|
* @return Message|null [description]
|
321
|
|
|
*/
|
322
|
|
|
public function getMessage(string $userId='me', string $messageId,
|
323
|
|
|
string $format='full', array $metadataHeaders=null):?Message
|
324
|
|
|
{
|
325
|
|
|
$query = [];
|
326
|
|
|
|
327
|
|
|
if ($format != 'full' && $format != null) $query['format'] = $format;
|
328
|
|
|
if ($metadataHeaders != null) $query['metadataHeaders'] = $metadataHeaders;
|
329
|
|
|
|
330
|
|
|
list($code, $response) = (new GMailCURL(GMailCURL::GET))(
|
331
|
|
|
self::API . "$userId/messages/$messageId?" . http_build_query($query),
|
332
|
|
|
["Authorization: Bearer $this->token"]
|
333
|
|
|
);
|
334
|
|
|
|
335
|
|
|
$this->lastResponse = $response;
|
336
|
|
|
$this->lastResponseCode = $code;
|
337
|
|
|
|
338
|
|
|
if ($response !== false) return new Message($response);
|
339
|
|
|
|
340
|
|
|
return null;
|
341
|
|
|
}
|
342
|
|
|
|
343
|
|
|
/**
|
344
|
|
|
* [getLastResponse description]
|
345
|
|
|
* @date 2020-03-07
|
346
|
|
|
* @return string [description]
|
347
|
|
|
*/
|
348
|
|
|
public function getLastResponse():string
|
349
|
|
|
{
|
350
|
|
|
return $this->lastResponse;
|
351
|
|
|
}
|
352
|
|
|
|
353
|
|
|
/**
|
354
|
|
|
* [getLastResponseCode description]
|
355
|
|
|
* @date 2020-03-07
|
356
|
|
|
* @return int [description]
|
357
|
|
|
*/
|
358
|
|
|
public function getLastResponseCode():int
|
359
|
|
|
{
|
360
|
|
|
return $this->lastResponseCode;
|
361
|
|
|
}
|
362
|
|
|
|
363
|
|
|
/**
|
364
|
|
|
* [process_response description]
|
365
|
|
|
* @param int $code [description]
|
366
|
|
|
* @param string $response [description]
|
367
|
|
|
* @return [type] [description]
|
|
|
|
|
368
|
|
|
*/
|
369
|
|
|
private function process_response(int $code, string $response):?object {
|
370
|
|
|
$response = json_decode($response);
|
371
|
|
|
$response->{self::HTTP_CODE} = $code;
|
372
|
|
|
return $response;
|
373
|
|
|
}
|
374
|
|
|
}
|
375
|
|
|
|