1 files changed, 93 insertions, 0 deletions
diff --git a/MatrixRoomUtils.Core/Authentication/MatrixAccount.cs b/MatrixRoomUtils.Core/Authentication/MatrixAccount.cs
new file mode 100644
index 0000000..4180df5
--- /dev/null
+++ b/MatrixRoomUtils.Core/Authentication/MatrixAccount.cs
@@ -0,0 +1,93 @@
+using System.Net.Http.Json;
+using System.Text.Json;
+using MatrixRoomUtils.Responses;
+
+namespace MatrixRoomUtils.Authentication;
+
+public class MatrixAccount
+{
+    public static async Task<LoginResponse> Login(string homeserver, string username, string password)
+    {
+        Console.WriteLine($"Logging in to {homeserver} as {username}...");
+        homeserver = await ResolveHomeserverFromWellKnown(homeserver);
+        var hc = new HttpClient();
+        var payload = new
+        {
+            type = "m.login.password",
+            identifier = new
+            {
+                type = "m.id.user",
+                user = username
+            },
+            password = password,
+            initial_device_display_name = "Rory&::MatrixRoomUtils"
+        };
+        Console.WriteLine($"Sending login request to {homeserver}...");
+        var resp = await hc.PostAsJsonAsync($"{homeserver}/_matrix/client/r0/login", payload);
+        Console.WriteLine($"Login: {resp.StatusCode}");
+        var data = await resp.Content.ReadFromJsonAsync<JsonElement>();
+        if (!resp.IsSuccessStatusCode) Console.WriteLine("Login: " + data.ToString());
+        if (data.TryGetProperty("retry_after_ms", out var retryAfter))
+        {
+            Console.WriteLine($"Login: Waiting {retryAfter.GetInt32()}ms before retrying");
+            await Task.Delay(retryAfter.GetInt32());
+            return await Login(homeserver, username, password);
+        }
+
+        return data.Deserialize<LoginResponse>();
+        //var token = data.GetProperty("access_token").GetString();
+        //return token;
+    }
+
+    public static async Task<ProfileResponse> GetProfile(string homeserver, string mxid)
+    {
+        Console.WriteLine($"Fetching profile for {mxid} on {homeserver}...");
+        homeserver = await ResolveHomeserverFromWellKnown(homeserver);
+        var hc = new HttpClient();
+        var resp = await hc.GetAsync($"{homeserver}/_matrix/client/r0/profile/{mxid}");
+        var data = await resp.Content.ReadFromJsonAsync<JsonElement>();
+        if (!resp.IsSuccessStatusCode) Console.WriteLine("Profile: " + data.ToString());
+        return data.Deserialize<ProfileResponse>();
+    }
+
+    public static async Task<string> ResolveHomeserverFromWellKnown(string homeserver)
+    {
+        using var hc = new HttpClient();
+        Console.WriteLine($"Resolving homeserver: {homeserver}");
+        if (!homeserver.StartsWith("http")) homeserver = "https://" + homeserver;
+
+        if (await CheckSuccessStatus($"{homeserver}/.well-known/matrix/client"))
+        {
+            var resp = await hc.GetFromJsonAsync<JsonElement>($"{homeserver}/.well-known/matrix/client");
+            var hs = resp.GetProperty("m.homeserver").GetProperty("base_url").GetString();
+            return hs;
+        }
+        Console.WriteLine($"No client well-known...");
+        if (await CheckSuccessStatus($"{homeserver}/.well-known/matrix/server"))
+        {
+            var resp = await hc.GetFromJsonAsync<JsonElement>($"{homeserver}/.well-known/matrix/server");
+            var hs = resp.GetProperty("m.server").GetString();
+            return hs;
+        }
+        Console.WriteLine($"No server well-known...");
+        if (await CheckSuccessStatus($"{homeserver}/_matrix/client/versions")) return homeserver;
+        Console.WriteLine($"Failed to resolve homeserver, not on {homeserver}, nor do client or server well-knowns exist!");
+        throw new InvalidDataException($"Failed to resolve homeserver, not on {homeserver}, nor do client or server well-knowns exist!");
+    }
+
+    private static async Task<bool> CheckSuccessStatus(string url)
+    {
+        //cors causes failure, try to catch
+        try
+        {
+            using var hc = new HttpClient();
+            var resp = await hc.GetAsync(url);
+            return resp.IsSuccessStatusCode;
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine($"Failed to check success status: {e.Message}");
+            return false;
+        }
+    }
+}
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