Add SceneTime captcha support (#529)

* Add optional instruction message to RecaptchaLogin

* Add recaptcha support for Scene Time

* Fix Scene Time captcha handling from a remote host

src/Jackett/Indexers/SceneTime.cs

@@ -16,13 +16,14 @@ namespace Jackett.Indexers
 {
     public class SceneTime : BaseIndexer, IIndexer
     {
+        private string StartPageUrl { get { return SiteLink + "login.php"; } }
         private string LoginUrl { get { return SiteLink + "takelogin.php"; } }
         private string SearchUrl { get { return SiteLink + "browse_API.php"; } }
         private string DownloadUrl { get { return SiteLink + "download.php/{0}/download.torrent"; } }
 
-        new ConfigurationDataBasicLogin configData
+        new ConfigurationDataRecaptchaLogin configData
         {
-            get { return (ConfigurationDataBasicLogin)base.configData; }
+            get { return (ConfigurationDataRecaptchaLogin)base.configData; }
             set { base.configData = value; }
         }
 
@@ -35,7 +36,7 @@ namespace Jackett.Indexers
                 client: w,
                 logger: l,
                 p: ps,
-                configData: new ConfigurationDataBasicLogin("For best results, change the 'Torrents per page' setting to the maximum in your profile on the SceneTime webpage."))
+                configData: new ConfigurationDataRecaptchaLogin("For best results, change the 'Torrents per page' setting to the maximum in your profile on the SceneTime webpage."))
         {
             AddCategoryMapping(1, TorznabCatType.MoviesSD);
             AddCategoryMapping(3, TorznabCatType.MoviesDVD);
@@ -78,14 +79,57 @@ namespace Jackett.Indexers
             AddCategoryMapping(11, TorznabCatType.AudioVideo);
         }
 
+        public override async Task<ConfigurationData> GetConfigurationForSetup()
+        {
+            var loginPage = await RequestStringWithCookies(StartPageUrl, string.Empty);
+            CQ cq = loginPage.Content;
+            var result = new ConfigurationDataRecaptchaLogin();
+            CQ recaptcha = cq.Find(".g-recaptcha").Attr("data-sitekey");
+            if (recaptcha.Length != 0)
+            {
+                result.CookieHeader.Value = loginPage.Cookies;
+                result.Captcha.SiteKey = cq.Find(".g-recaptcha").Attr("data-sitekey");
+                return result;
+            }
+            else
+            {
+                var stdResult = new ConfigurationDataBasicLogin();
+                stdResult.CookieHeader.Value = loginPage.Cookies;
+                return stdResult;
+            }
+        }
+
         public async Task<IndexerConfigurationStatus> ApplyConfiguration(JToken configJson)
         {
             configData.LoadValuesFromJson(configJson);
             var pairs = new Dictionary<string, string> {
                 { "username", configData.Username.Value },
-                { "password", configData.Password.Value }
+                { "password", configData.Password.Value },
+                { "g-recaptcha-response", configData.Captcha.Value }
             };
 
+            if (!string.IsNullOrWhiteSpace(configData.Captcha.Cookie))
+            {
+                CookieHeader = configData.Captcha.Cookie;
+                try
+                {
+                    var results = await PerformQuery(new TorznabQuery());
+                    if (results.Count() == 0)
+                    {
+                        throw new Exception("Your cookie did not work");
+                    }
+
+                    SaveConfig();
+                    IsConfigured = true;
+                    return IndexerConfigurationStatus.Completed;
+                }
+                catch (Exception e)
+                {
+                    IsConfigured = false;
+                    throw new Exception("Your cookie did not work: " + e.Message);
+                }
+            }
+
             var result = await RequestLoginAndFollowRedirect(LoginUrl, pairs, null, true, null, LoginUrl);
             await ConfigureIfOK(result.Cookies, result.Content != null && result.Content.Contains("logout.php"), () =>
             {

src/Jackett/Models/IndexerConfig/ConfigurationDataRecaptchaLogin.cs

@@ -12,12 +12,14 @@ namespace Jackett.Models.IndexerConfig
         public StringItem Username { get; private set; }
         public StringItem Password { get; private set; }
         public RecaptchaItem Captcha { get; private set; }
+        public DisplayItem Instructions { get; private set; }
 
-        public ConfigurationDataRecaptchaLogin()
+        public ConfigurationDataRecaptchaLogin(string instructionMessageOptional = null)
         {
             Username = new StringItem { Name = "Username" };
             Password = new StringItem { Name = "Password" };
             Captcha = new RecaptchaItem() { Name = "Recaptcha" };
+            Instructions = new DisplayItem(instructionMessageOptional) { Name = "" };
         }