feat: add Navidrome song validator, refs #5

song_of_the_day/Auth/PhoneClaimCodeProviderService.cs

@@ -11,10 +11,9 @@ public class PhoneClaimCodeProviderService
         _signalIntegration = signalIntegration;
     }
 
-    private static Random random = new Random();
-
     private static string RandomString(int length)
     {
+        Random random = new Random();
         const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
         return new string(Enumerable.Repeat(chars, length)
             .Select(s => s[random.Next(s.Length)]).ToArray());

song_of_the_day/MessengerIntegration/SignalIntegration.cs

@@ -150,12 +150,12 @@ public class SignalIntegration
         }
         await this.SendMessageToUserAsync("Hi, my name is Proggy and I am your friendly neighborhood *Song of the Day* bot!", user.SignalMemberId);
         await this.SendMessageToUserAsync("You are receiving this message because you have been invited to a *Song of the Day* community group.", user.SignalMemberId);
-        await this.SendMessageToUserAsync("In that community group I will pick a person at random each day at 8 AM and encourage them to share a song with the rest of the community.", user.SignalMemberId);
+        await this.SendMessageToUserAsync("In that community group I will pick a person at random every now and then and encourage them to share a song with the rest of the community.", user.SignalMemberId);
         if (AppConfiguration.Instance.UseBotTag)
         {
             await this.SendMessageToUserAsync("You can always see which messages are sent by me rather than the community host by the **[Proggy]** tag at the beginning of the message", user.SignalMemberId);
         }
-        await this.SendMessageToUserAsync($"Not right now, but eventually you will be able to see more details about your community at {AppConfiguration.Instance.WebUIBaseURL}.", user.SignalMemberId);
+        await this.SendMessageToUserAsync($"You can find more details about your community at {AppConfiguration.Instance.WebUIBaseURL}.", user.SignalMemberId);
         await this.SendMessageToUserAsync($"""You can navigate to {AppConfiguration.Instance.WebUIBaseURL + (AppConfiguration.Instance.WebUIBaseURL.EndsWith("/") ? "" : "/")}User/{user.UserId} to set your preferred display name for me to use.""", user.SignalMemberId);
         await this.SendMessageToUserAsync($"Now have fun and enjoy being a part of this community!", user.SignalMemberId);
     }

song_of_the_day/Pages/SongSubmission.cshtml.cs

@@ -128,10 +128,10 @@ public class SongSubmissionModel : PageModel
             Url = suggestion.Song.Url,
             Base64Image = imageBuilder.ToString(),
         };
-        await signalIntegration.SendMessageToGroupAsync($"**{displayName}**'s " + dateString + $" is: \n\n {suggestion.Song.Url}", previewData);
+        await signalIntegration.SendMessageToGroupAsync($"**{displayName}**'s " + dateString + $" is: \n\n{suggestion.Song.Url}", previewData);
         if (suggestion.HasUsedSuggestion)
         {
-            await signalIntegration.SendMessageToGroupAsync($"The suggestion used for this pick was: \n\n **{suggestion.SuggestionHelper.Title}**'s \n\n {suggestion.SuggestionHelper.Description}");
+            await signalIntegration.SendMessageToGroupAsync($"The suggestion used for this pick was: \n\n**{suggestion.SuggestionHelper.Title}** \n\n{suggestion.SuggestionHelper.Description}");
         }
     }
 

song_of_the_day/SongValidators/ISongValidator.cs

@@ -2,7 +2,7 @@ public interface ISongValidator
 {
     Task<Song> ValidateAsync(Uri songUri);
 
-    bool CanValidateUri(Uri songUri);
+    Task<bool> CanValidateUriAsync(Uri songUri);
 
     Task<bool> CanExtractSongMetadataAsync(Uri songUri);
 

song_of_the_day/SongValidators/NavidromeValidator.cs

@@ -0,0 +1,121 @@
+using System.Threading.Tasks;
+using AngleSharp;
+using AngleSharp.Dom;
+using AngleSharp.Html.Dom;
+using YouTubeMusicAPI.Client;
+using System.Text.Json;
+using Acornima.Ast;
+using AngleSharp.Text;
+using System.Text.RegularExpressions;
+using System.Text.Json.Serialization;
+
+public class NavidromeValidator : SongValidatorBase
+{
+    private YouTubeMusicClient youtubeClient;
+
+    public NavidromeValidator(ILogger logger, SpotifyApiClient spotifyApiClient) : base(logger, spotifyApiClient)
+    {
+        youtubeClient = new("AT");
+    }
+
+    public override async Task<bool> CanValidateUriAsync(Uri songUri)
+    {
+        // Check if behind this URL there is a public navidrome share
+        var config = Configuration.Default.WithDefaultLoader();
+        var address = songUri.ToString();
+        var context = BrowsingContext.New(config);
+        var document = await context.OpenAsync(address);
+        var titleCell = (document.DocumentElement.GetDescendants().First() as HtmlElement)
+                                                .GetElementsByTagName("title").First();
+        return "Navidrome".Equals(titleCell.TextContent);
+    }
+
+    public override async Task<bool> CanExtractSongMetadataAsync(Uri songUri)
+    {
+        return await this.CanValidateUriAsync(songUri);
+    }
+
+    public override SongProvider GetSongProvider()
+    {
+        return SongProvider.NavidromeSharedLink;
+    }
+
+    private static Stream GenerateStreamFromString(string s)
+    {
+        var stream = new MemoryStream();
+        var writer = new StreamWriter(stream);
+        writer.Write(s);
+        writer.Flush();
+        stream.Position = 0;
+        return stream;
+    }
+
+    public override async Task<Song> ValidateAsync(Uri songUri)
+    {
+        var config = Configuration.Default.WithDefaultLoader();
+        var address = songUri.ToString();
+        var context = BrowsingContext.New(config);
+        var document = await context.OpenAsync(address);
+        var infoScriptNode = document.GetElementsByTagName("script").Where(e => e.TextContent.Contains("__SHARE_INFO__")).First();
+        var manipulatedValue = infoScriptNode.TextContent.Replace("window.__SHARE_INFO__ = \"", "").StripLeadingTrailingSpaces().StripLineBreaks();
+        manipulatedValue = manipulatedValue.Remove(manipulatedValue.Length - 1);
+        var infoScriptJsonData = Regex.Unescape(Regex.Unescape(manipulatedValue));
+
+        var title = string.Empty;
+        var artist = string.Empty;
+
+        using (var stream = GenerateStreamFromString(infoScriptJsonData))
+        {
+            var jsonContent = await JsonSerializer.DeserializeAsync<NavidromeShareInfoData>(stream);
+            title = jsonContent.Tracks[0].Title;
+            artist = jsonContent.Tracks[0].Artist;
+        }
+
+        var song = new Song
+        {
+            Name = title,
+            Artist = artist,
+            Url = songUri.ToString(),
+            Provider = SongProvider.NavidromeSharedLink,
+            SpotifyId = await this.LookupSpotifyIdAsync(title, artist)
+        };
+
+        return song;
+    }
+}
+
+public class NavidromeShareInfoData
+{
+    [JsonPropertyName("id")]
+    public string Id { get; set; }
+
+    [JsonPropertyName("description")]
+    public string Description { get; set; }
+
+    [JsonPropertyName("downloadable")]
+    public bool Downloadable { get; set; }
+
+    [JsonPropertyName("tracks")]
+    public List<NavidromeTrackInfoData> Tracks { get; set; }
+}
+
+public class NavidromeTrackInfoData
+{
+    [JsonPropertyName("id")]
+    public string Id { get; set; }
+
+    [JsonPropertyName("title")]
+    public string Title { get; set; }
+
+    [JsonPropertyName("artist")]
+    public string Artist { get; set; }
+
+    [JsonPropertyName("album")]
+    public string Album { get; set; }
+
+    [JsonPropertyName("updatedAt")]
+    public DateTime UpdatedAt { get; set; }
+
+    [JsonPropertyName("duration")]
+    public float Duration { get; set; }
+}

song_of_the_day/SongValidators/SongResolver.cs

@@ -1,3 +1,4 @@
+using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
 using SpotifyAPI.Web;
 
@@ -32,7 +33,7 @@ public class SongResolver
     {
         foreach (var validator in _songValidators)
         {
-            if (validator.CanValidateUri(songUri))
+            if (await validator.CanValidateUriAsync(songUri))
             {
                 if (!await validator.CanExtractSongMetadataAsync(songUri))
                 {
@@ -62,7 +63,7 @@ public class SongResolver
     {
         foreach (var validator in _songValidators)
         {
-            if (validator.CanValidateUri(songUri))
+            if (validator.CanValidateUriAsync(songUri).Result)
             {
                 return true;
             }

song_of_the_day/SongValidators/SongValidatorBase.cs

@@ -7,7 +7,7 @@ public abstract class SongValidatorBase : ISongValidator
 
     public abstract Task<bool> CanExtractSongMetadataAsync(Uri songUri);
 
-    public abstract bool CanValidateUri(Uri songUri);
+    public abstract Task<bool> CanValidateUriAsync(Uri songUri);
 
     public abstract SongProvider GetSongProvider();
 

song_of_the_day/SongValidators/SpotifyValidator.cs

@@ -10,9 +10,9 @@ public class SpotifyValidator : UriBasedSongValidatorBase
     public SpotifyValidator(ILogger _logger, SpotifyApiClient spotifyApiClient) : base(_logger, spotifyApiClient)
     { }
 
-    public override Task<bool> CanExtractSongMetadataAsync(Uri songUri)
+    public override async Task<bool> CanExtractSongMetadataAsync(Uri songUri)
     {
-        return Task.FromResult(this.CanValidateUri(songUri));
+        return await this.CanValidateUriAsync(songUri);
     }
 
     public override SongProvider GetSongProvider()

song_of_the_day/SongValidators/UriBasedSongValidatorBase.cs

@@ -13,8 +13,12 @@ public abstract class UriBasedSongValidatorBase : SongValidatorBase
         return regexp.Match(songUri.ToString());
     }
 
-    public override bool CanValidateUri(Uri songUri)
+    public override async Task<bool> CanValidateUriAsync(Uri songUri)
     {
-        return GetUriMatch(songUri).Success;
+        var result = await Task.Run(() =>
+        {
+            return GetUriMatch(songUri).Success;
+        });
+        return result;
     }
 }

song_of_the_day/SongValidators/YoutubeMusicValidator.cs

@@ -18,9 +18,9 @@ public class YoutubeMusicValidator : UriBasedSongValidatorBase
         return SongProvider.YoutubeMusic;
     }
 
-    public override Task<bool> CanExtractSongMetadataAsync(Uri songUri)
+    public override async Task<bool> CanExtractSongMetadataAsync(Uri songUri)
     {
-        return Task.FromResult(this.CanValidateUri(songUri));
+        return await this.CanValidateUriAsync(songUri);
     }
 
     public override async Task<Song> ValidateAsync(Uri songUri)

song_of_the_day/SongValidators/YoutubeValidator.cs

@@ -14,9 +14,9 @@ public class YoutubeValidator : UriBasedSongValidatorBase
 
     public override string UriValidatorRegex => @"^(https?://)?(www\.)?(youtube\.com/watch\?v=|youtu\.be/)([a-zA-Z0-9_-]{11})";
 
-    public override Task<bool> CanExtractSongMetadataAsync(Uri songUri)
+    public override async Task<bool> CanExtractSongMetadataAsync(Uri songUri)
     {
-        return Task.FromResult(this.CanValidateUri(songUri));
+        return await this.CanValidateUriAsync(songUri);
     }
 
     public override SongProvider GetSongProvider()