mirror of
https://github.com/wallabag/wallabag.git
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112 lines
3.2 KiB
PHP
112 lines
3.2 KiB
PHP
<?php
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namespace Wallabag\CoreBundle\SiteConfig\Authenticator;
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use GuzzleHttp\ClientInterface;
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use GuzzleHttp\Cookie\CookieJar;
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use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
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use Wallabag\CoreBundle\ExpressionLanguage\AuthenticatorProvider;
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use Wallabag\CoreBundle\SiteConfig\SiteConfig;
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class LoginFormAuthenticator implements Authenticator
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{
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/** @var \GuzzleHttp\Client */
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protected $guzzle;
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/** @var SiteConfig */
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private $siteConfig;
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public function __construct(SiteConfig $siteConfig)
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{
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// @todo OptionResolver
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$this->siteConfig = $siteConfig;
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}
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public function login(ClientInterface $guzzle)
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{
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$postFields = [
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$this->siteConfig->getUsernameField() => $this->siteConfig->getUsername(),
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$this->siteConfig->getPasswordField() => $this->siteConfig->getPassword(),
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] + $this->getExtraFields($guzzle);
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$guzzle->post(
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$this->siteConfig->getLoginUri(),
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['body' => $postFields, 'allow_redirects' => true, 'verify' => false]
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);
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return $this;
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}
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public function isLoggedIn(ClientInterface $guzzle)
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{
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if (($cookieJar = $guzzle->getDefaultOption('cookies')) instanceof CookieJar) {
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/** @var \GuzzleHttp\Cookie\SetCookie $cookie */
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foreach ($cookieJar as $cookie) {
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// check required cookies
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if ($cookie->getDomain() === $this->siteConfig->getHost()) {
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return true;
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}
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}
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}
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return false;
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}
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public function isLoginRequired($html)
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{
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$useInternalErrors = libxml_use_internal_errors(true);
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// need to check for the login dom element ($options['not_logged_in_xpath']) in the HTML
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$doc = new \DOMDocument();
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$doc->loadHTML($html);
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$xpath = new \DOMXPath($doc);
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$loggedIn = $xpath->evaluate((string) $this->siteConfig->getNotLoggedInXpath());
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if (false === $loggedIn) {
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return false;
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}
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libxml_use_internal_errors($useInternalErrors);
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return $loggedIn->length > 0;
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}
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/**
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* Returns extra fields from the configuration.
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* Evaluates any field value that is an expression language string.
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*
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* @return array
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*/
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private function getExtraFields(ClientInterface $guzzle)
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{
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$extraFields = [];
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foreach ($this->siteConfig->getExtraFields() as $fieldName => $fieldValue) {
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if ('@=' === substr($fieldValue, 0, 2)) {
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$expressionLanguage = $this->getExpressionLanguage($guzzle);
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$fieldValue = $expressionLanguage->evaluate(
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substr($fieldValue, 2),
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[
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'config' => $this->siteConfig,
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]
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);
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}
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$extraFields[$fieldName] = $fieldValue;
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}
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return $extraFields;
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}
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/**
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* @return ExpressionLanguage
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*/
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private function getExpressionLanguage(ClientInterface $guzzle)
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{
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return new ExpressionLanguage(
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null,
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[new AuthenticatorProvider($guzzle)]
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);
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}
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}
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