Started methods implementation, added login and check auth state methods. Added project license.

.gitignore

@@ -1,3 +1,4 @@
 .idea
 vendor/
-composer.lock
+composer.lock
+tests/

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Bohdan Konkevych
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

composer.json

@@ -5,9 +5,13 @@
     "homepage": "http://git.devbones.com/Toloka/php-api",
     "require": {
         "php": ">=7.4",
-        "psr/simple-cache": "^3.0",
-        "psr/log": "^3.0",
-        "psr/http-client": "^1.0"
+        "psr/http-client": "^1.0",
+        "psr/simple-cache": "^1.0",
+        "psr/log": "^1.0",
+        "symfony/dom-crawler": "^5.4",
+        "symfony/css-selector": "^5.4",
+        "dflydev/fig-cookies": "^3.0",
+        "symfony/polyfill-php80": "^1.26"
     },
     "license": "MIT",
     "autoload": {
@@ -22,6 +26,9 @@
         }
     ],
     "require-dev": {
-        "guzzlehttp/guzzle": "^7.5"
+        "cache/array-adapter": "^1.2",
+        "guzzlehttp/guzzle": "^7.5",
+        "monolog/monolog": "^2.8",
+        "cache/filesystem-adapter": "^1.2"
     }
 }

src/Client.php

@@ -2,12 +2,24 @@
 
 namespace Toloka\PhpApi;
 
+use Dflydev\FigCookies\Cookie;
+use Dflydev\FigCookies\Cookies;
+use Dflydev\FigCookies\FigRequestCookies;
+use Dflydev\FigCookies\SetCookies;
+use GuzzleHttp\Psr7\Request;
 use Psr\Http\Client\ClientInterface as HttpClientInterface;
+use Psr\Http\Message\RequestInterface;
 use Psr\Log\LoggerInterface;
 use Psr\SimpleCache\CacheInterface;
+use GuzzleHttp\Psr7\Utils;
+use Symfony\Component\DomCrawler\Crawler;
+use Toloka\PhpApi\Exception\Auth\AuthException;
+use Toloka\PhpApi\Exception\Auth\InvalidAuthCredentials;
 
 class Client implements ClientInterface {
 
+  const CACHE_KEY_COOKIES = 'cookies';
+
   /**
    * Hurtom Toloka base url.
    *
@@ -36,6 +48,11 @@ class Client implements ClientInterface {
    */
   protected LoggerInterface $logger;
 
+  /**
+   * @var Cookies
+   */
+  protected ?Cookies $cookies = NULL;
+
   /**
    * Toloka client constructor.
    *
@@ -44,14 +61,22 @@ class Client implements ClientInterface {
    * @param LoggerInterface|NULL $logger
    */
   public function __construct(
-    string $base_url = 'https://toloka.to',
+    string $base_url,
     HttpClientInterface $httpClient,
     CacheInterface $cache,
     LoggerInterface $logger
   ) {
+    $this->base_url = $base_url;
     $this->httpClient = $httpClient;
     $this->cache = $cache;
     $this->logger = $logger;
+
+    if ($cache->has(self::CACHE_KEY_COOKIES)) {
+      $persistent_cookies = $cache->get(self::CACHE_KEY_COOKIES);
+      if ($persistent_cookies instanceof Cookies) {
+        $this->cookies = $persistent_cookies;
+      }
+    }
   }
 
   /**
@@ -65,14 +90,79 @@ class Client implements ClientInterface {
    * {@inheritDoc}
    */
   public function login(string $login, string $password): void {
-    // TODO: Implement login() method.
+    if ($this->isLoggedIn()) {
+      return;
+    }
+    $body = http_build_query([
+      'username' => $login,
+      'password' => $password,
+      'autologin' => 'on',
+      'ssl' => 'on',
+      'redirect' => '',
+      'login' => 'Вхід',
+    ]);
+    $request = new Request('POST', $this->getBaseUrl() . '/login.php', [
+      'Content-Type' => 'application/x-www-form-urlencoded',
+    ], Utils::streamFor($body));
+    $response = $this->httpClient->sendRequest($request);
+    if ($response->getStatusCode() === 302) {
+      // If redirected - this means successful login, can save cookies.
+      $cookies = SetCookies::fromResponse($response);
+      $this->saveCookies($cookies);
+    }
+    elseif ($response->getStatusCode() === 200) {
+      // In case of returned page - try to find an error and throw exception.
+      $crawler = new Crawler($response->getBody()->getContents());
+      $text = $crawler->filter('.forumline .row1 span.gen')->text(NULL, TRUE);
+      if (str_contains($text, 'Такий псевдонім не існує, або не збігається пароль.')) {
+        throw new InvalidAuthCredentials();
+      }
+    }
+    throw new AuthException();
+  }
+
+  private function saveCookies($data) {
+    if ($data instanceof SetCookies) {
+      $cookies = [];
+      foreach ($data->getAll() as $cookie) {
+        $cookies[] = Cookie::create($cookie->getName(), $cookie->getValue());
+      }
+      $this->cookies = new Cookies($cookies);
+    }
+    elseif ($data instanceof Cookies) {
+      $this->cookies = $data;
+    }
+    $this->cache->set(self::CACHE_KEY_COOKIES, $this->cookies);
+  }
+
+  private function applyRequestCookies(RequestInterface $request): RequestInterface {
+    if (!$this->cookies) {
+      return $request;
+    }
+    foreach ($this->cookies->getAll() as $cookie) {
+      $request = FigRequestCookies::set($request, $cookie);
+    }
+    return $request;
   }
 
   /**
    * {@inheritDoc}
    */
   public function isLoggedIn(): bool {
-    // TODO: Implement isLoggedIn() method.
+    $request = new Request('GET', $this->getBaseUrl());
+    $request = $this->applyRequestCookies($request);
+    $response = $this->httpClient->sendRequest($request);
+    if ($response->getStatusCode() === 200) {
+      $crawler = new Crawler($response->getBody()->getContents());
+      $menu_links = $crawler->filter('table.navie6fix a');
+      foreach ($menu_links as $menu_link) {
+        // If there is a link to profile, then we authorized.
+        if ($menu_link->textContent === 'Профіль') {
+          return TRUE;
+        }
+      }
+    }
+    return FALSE;
   }
 
   /**
@@ -86,7 +176,7 @@ class Client implements ClientInterface {
    * {@inheritDoc}
    */
   public function getTopic(int $id): TopicInterface {
-    // TODO: Implement getTopic() method.
+
   }
 
 }

src/ClientInterface.php

@@ -30,6 +30,8 @@ interface ClientInterface {
    * Check if user logged in.
    *
    * @return bool
+   *
+   * @throws \Psr\Http\Client\ClientExceptionInterface
    */
   public function isLoggedIn(): bool;
 
@@ -48,6 +50,8 @@ interface ClientInterface {
    *
    * @return TopicInterface
    *   Object with populated topic data.
+   *
+   * @throws \Psr\Http\Client\ClientExceptionInterface
    */
   public function getTopic(int $id): TopicInterface;
 

src/Exception/Auth/AuthException.php

@@ -0,0 +1,5 @@
+<?php
+
+namespace Toloka\PhpApi\Exception\Auth;
+
+class AuthException extends \Exception {}

src/Exception/Auth/InvalidAuthCredentials.php

@@ -2,8 +2,6 @@
 
 namespace Toloka\PhpApi\Exception\Auth;
 
-use Toloka\PhpApi\Exception\AuthException;
-
 class InvalidAuthCredentials extends AuthException {
 
   protected $message = 'Failed to login using given credentials.';

src/Exception/Auth/TooManyLoginAttempts.php

@@ -2,8 +2,6 @@
 
 namespace Toloka\PhpApi\Exception\Auth;
 
-use Toloka\PhpApi\Exception\AuthException;
-
 class TooManyLoginAttempts extends AuthException {
 
   protected $message = 'Too many login attempts performed. Try again later.';

src/Exception/AuthException.php

@@ -1,5 +0,0 @@
-<?php
-
-namespace Toloka\PhpApi\Exception;
-
-abstract class AuthException extends \Exception {}