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using System.Net.Http.Json;
using System.Text.Json;
using System.Text.Json.Nodes;
using System.Text.Json.Serialization;
using System.Web;
using ArcaneLibs.Extensions;
using LibMatrix.Extensions;
using LibMatrix.Responses;
using LibMatrix.Services;
using Microsoft.Extensions.Logging.Abstractions;
namespace LibMatrix.Homeservers;
public class RemoteHomeserver {
public RemoteHomeserver(string baseUrl, HomeserverResolverService.WellKnownUris wellKnownUris, string? proxy) {
if (string.IsNullOrWhiteSpace(proxy))
proxy = null;
BaseUrl = baseUrl;
WellKnownUris = wellKnownUris;
ClientHttpClient = new MatrixHttpClient {
BaseAddress = new Uri(proxy?.TrimEnd('/') ?? wellKnownUris.Client?.TrimEnd('/') ?? throw new InvalidOperationException($"No client URI for {baseUrl}!")),
// Timeout = TimeSpan.FromSeconds(300) // TODO: Re-implement this
};
if (proxy is not null) ClientHttpClient.DefaultRequestHeaders.Add("MXAE_UPSTREAM", baseUrl);
if (!string.IsNullOrWhiteSpace(wellKnownUris.Server))
FederationClient = new FederationClient(WellKnownUris.Server!, proxy);
Auth = new(this);
}
private Dictionary<string, object> _profileCache { get; set; } = new();
public string BaseUrl { get; }
[JsonIgnore]
public MatrixHttpClient ClientHttpClient { get; set; }
[JsonIgnore]
public FederationClient? FederationClient { get; set; }
public HomeserverResolverService.WellKnownUris WellKnownUris { get; set; }
public async Task<UserProfileResponse> GetProfileAsync(string mxid, bool useCache = false) {
if (mxid is null) throw new ArgumentNullException(nameof(mxid));
if (useCache && _profileCache.TryGetValue(mxid, out var value)) {
if (value is SemaphoreSlim s) await s.WaitAsync();
if (value is UserProfileResponse p) return p;
}
_profileCache[mxid] = new SemaphoreSlim(1);
var resp = await ClientHttpClient.GetAsync($"/_matrix/client/v3/profile/{HttpUtility.UrlEncode(mxid)}");
var data = await resp.Content.ReadFromJsonAsync<UserProfileResponse>();
if (!resp.IsSuccessStatusCode) Console.WriteLine("Profile: " + data);
_profileCache[mxid] = data;
return data;
}
// TODO: Do we need to support retrieving individual profile properties? Is there any use for that besides just getting the full profile?
public async Task<ClientVersionsResponse> GetClientVersionsAsync() {
var resp = await ClientHttpClient.GetAsync($"/_matrix/client/versions");
var data = await resp.Content.ReadFromJsonAsync<ClientVersionsResponse>();
if (!resp.IsSuccessStatusCode) Console.WriteLine("ClientVersions: " + data);
return data;
}
public async Task<AliasResult> ResolveRoomAliasAsync(string alias) {
var resp = await ClientHttpClient.GetAsync($"/_matrix/client/v3/directory/room/{alias.Replace("#", "%23")}");
var data = await resp.Content.ReadFromJsonAsync<AliasResult>();
//var text = await resp.Content.ReadAsStringAsync();
if (!resp.IsSuccessStatusCode) Console.WriteLine("ResolveAlias: " + data.ToJson());
return data;
}
#region Authentication
public async Task<LoginResponse> LoginAsync(string username, string password, string? deviceName = null) {
var resp = await ClientHttpClient.PostAsJsonAsync("/_matrix/client/r0/login", new {
type = "m.login.password",
identifier = new {
type = "m.id.user",
user = username
},
password = password,
initial_device_display_name = deviceName
});
var data = await resp.Content.ReadFromJsonAsync<LoginResponse>();
if (!resp.IsSuccessStatusCode) Console.WriteLine("Login: " + data.ToJson());
return data;
}
public async Task<LoginResponse> RegisterAsync(string username, string password, string? deviceName = null) {
var resp = await ClientHttpClient.PostAsJsonAsync("/_matrix/client/r0/register", new {
kind = "user",
auth = new {
type = "m.login.dummy"
},
username,
password,
initial_device_display_name = deviceName ?? "LibMatrix"
}, new JsonSerializerOptions() {
DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
});
var data = await resp.Content.ReadFromJsonAsync<LoginResponse>();
if (!resp.IsSuccessStatusCode) Console.WriteLine("Register: " + data.ToJson());
return data;
}
#endregion
public string? ResolveMediaUri(string? mxcUri) {
if (mxcUri is null) return null;
if (mxcUri.StartsWith("https://")) return mxcUri;
return $"{ClientHttpClient.BaseAddress}/_matrix/media/v3/download/{mxcUri.Replace("mxc://", "")}".Replace("//_matrix", "/_matrix");
}
public UserInteractiveAuthClient Auth;
}
public class AliasResult {
[JsonPropertyName("room_id")]
public string RoomId { get; set; } = null!;
[JsonPropertyName("servers")]
public List<string> Servers { get; set; } = null!;
}
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