PhutilTwitterAuthAdapter.php
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	<?php

	/**
	* Authentication adapter for Twitter OAuth1.
	*/
	final class PhutilTwitterAuthAdapter extends PhutilOAuth1AuthAdapter {

	private $userInfo;

	public function getAccountID() {
	return idx($this->getHandshakeData(), 'user_id');
	}

	public function getAccountName() {
	return idx($this->getHandshakeData(), 'screen_name');
	}

	public function getAccountURI() {
	$name = $this->getAccountName();
	if (strlen($name)) {
	return 'https://twitter.com/'.$name;
	}
	return null;
	}

	public function getAccountImageURI() {
	$info = $this->getUserInfo();
	return idx($info, 'profile_image_url');
	}

	public function getAccountRealName() {
	$info = $this->getUserInfo();
	return idx($info, 'name');
	}

	public function getAdapterType() {
	return 'twitter';
	}

	public function getAdapterDomain() {
	return 'twitter.com';
	}

	protected function getRequestTokenURI() {
	return 'https://api.twitter.com/oauth/request_token';
	}

	protected function getAuthorizeTokenURI() {
	return 'https://api.twitter.com/oauth/authorize';
	}

	protected function getValidateTokenURI() {
	return 'https://api.twitter.com/oauth/access_token';
	}

	private function getUserInfo() {
	if ($this->userInfo === null) {
	$params = array(
	'user_id' => $this->getAccountID(),
	);

	$uri = new PhutilURI(
	'https://api.twitter.com/1.1/users/show.json',
	$params);

	$data = $this->newOAuth1Future($uri)
	->setMethod('GET')
	->resolveJSON();

	$this->userInfo = $data;
	}
	return $this->userInfo;
	}

	}