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using System.Net.Http.Json;
using ArcaneLibs.Collections;
using ArcaneLibs.Extensions;
using LibMatrix.Homeservers;
using LibMatrix.Responses;
using Microsoft.Extensions.Logging;
namespace LibMatrix.Services;
public class HomeserverProviderService(ILogger<HomeserverProviderService> logger, HomeserverResolverService hsResolver) {
private static SemaphoreCache<AuthenticatedHomeserverGeneric> AuthenticatedHomeserverCache = new();
private static SemaphoreCache<RemoteHomeserver> RemoteHomeserverCache = new();
private static SemaphoreCache<FederationClient> FederationClientCache = new();
public async Task<AuthenticatedHomeserverGeneric> GetAuthenticatedWithToken(string homeserver, string accessToken, string? proxy = null, string? impersonatedMxid = null,
bool useGeneric = false, bool enableClient = true, bool enableServer = true) {
if (!enableClient && !enableServer)
throw new ArgumentException("At least one of enableClient or enableServer must be true");
return await AuthenticatedHomeserverCache.GetOrAdd($"{homeserver}{accessToken}{proxy}{impersonatedMxid}", async () => {
var wellKnownUris = await hsResolver.ResolveHomeserverFromWellKnown(homeserver, enableClient, enableServer);
var rhs = new RemoteHomeserver(homeserver, wellKnownUris, ref proxy);
AuthenticatedHomeserverGeneric? hs = null;
if (!useGeneric) {
ClientVersionsResponse? clientVersions = new();
try {
clientVersions = await rhs.GetClientVersionsAsync();
}
catch (Exception e) {
logger.LogError(e, "Failed to get client versions for {homeserver}", homeserver);
}
ServerVersionResponse? serverVersion;
try {
serverVersion = await (rhs.FederationClient?.GetServerVersionAsync() ?? Task.FromResult<ServerVersionResponse?>(null)!);
}
catch (Exception e) {
logger.LogWarning(e, "Failed to get server version for {homeserver}", homeserver);
throw;
}
try {
if (clientVersions.UnstableFeatures.TryGetValue("gay.rory.mxapiextensions.v0", out var a) && a)
hs = new AuthenticatedHomeserverMxApiExtended(homeserver, wellKnownUris, ref proxy, accessToken);
else {
if (serverVersion is { Server.Name: "Synapse" })
hs = new AuthenticatedHomeserverSynapse(homeserver, wellKnownUris, ref proxy, accessToken);
}
}
catch (Exception e) {
logger.LogError(e, "Failed to create authenticated homeserver for {homeserver}", homeserver);
throw;
}
}
hs ??= new AuthenticatedHomeserverGeneric(homeserver, wellKnownUris, ref proxy, accessToken);
await hs.Initialise();
if (impersonatedMxid is not null)
await hs.SetImpersonate(impersonatedMxid);
return hs;
});
}
public async Task<RemoteHomeserver> GetRemoteHomeserver(string homeserver, string? proxy = null, bool useCache = true, bool enableServer = true) =>
useCache
? await RemoteHomeserverCache.GetOrAdd($"{homeserver}{proxy}",
async () => { return new RemoteHomeserver(homeserver, await hsResolver.ResolveHomeserverFromWellKnown(homeserver, enableServer: enableServer), ref proxy); })
: new RemoteHomeserver(homeserver, await hsResolver.ResolveHomeserverFromWellKnown(homeserver, enableServer: enableServer), ref proxy);
public async Task<FederationClient> GetFederationClient(string homeserver, string keyId, string? proxy = null, bool useCache = true) =>
useCache
? await FederationClientCache.GetOrAdd($"{homeserver}{keyId}{proxy}",
async () => { return new FederationClient((await hsResolver.ResolveHomeserverFromWellKnown(homeserver, enableClient: false)).Server!, proxy); })
: new FederationClient((await hsResolver.ResolveHomeserverFromWellKnown(homeserver, enableClient: false)).Server!, proxy);
public async Task<LoginResponse> Login(string homeserver, string user, string password, string? proxy = null) {
var hs = await GetRemoteHomeserver(homeserver, proxy);
var payload = new LoginRequest {
Identifier = new LoginRequest.LoginIdentifier { User = user },
Password = password
};
var resp = await hs.ClientHttpClient.PostAsJsonAsync("/_matrix/client/v3/login", payload);
var data = await resp.Content.ReadFromJsonAsync<LoginResponse>();
return data!;
}
}
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