public async Task <IActionResult> PostRejectFollow()
{
var activityFollow = new ActivityFollow
{
type = "Follow",
actor = "https://mastodon.technology/users/testtest",
apObject = $"https://{_instanceSettings.Domain}/users/afp"
};
await _userService.SendRejectFollowAsync(activityFollow, "mastodon.technology");
return(View("Index"));
}
public async Task ProcessAsync(Follower follower, SyncTwitterUser twitterUser)
{
try
{
var activityFollowing = new ActivityFollow
{
type = "Follow",
actor = follower.ActorId,
apObject = UrlFactory.GetActorUrl(_instanceSettings.Domain, twitterUser.Acct)
};
await _userService.SendRejectFollowAsync(activityFollowing, follower.Host);
}
catch (Exception) { }
}
public async Task <IActionResult> Follow()
{
var actor = $"https://{_instanceSettings.Domain}/users/gra";
var targethost = "mastodon.technology";
var followActivity = new ActivityFollow()
{
context = "https://www.w3.org/ns/activitystreams",
id = $"https://{_instanceSettings.Domain}/{Guid.NewGuid()}",
type = "Follow",
actor = actor,
apObject = $"https://{targethost}/users/testtest"
};
await _activityPubService.PostDataAsync(followActivity, targethost, actor);
return(View("Index"));
}
public async Task <bool> SendRejectFollowAsync(ActivityFollow activity, string followerHost)
{
var acceptFollow = new ActivityRejectFollow()
{
context = "https://www.w3.org/ns/activitystreams",
id = $"{activity.apObject}#rejects/follows/{Guid.NewGuid()}",
type = "Reject",
actor = activity.apObject,
apObject = new ActivityFollow()
{
id = activity.id,
type = activity.type,
actor = activity.actor,
apObject = activity.apObject
}
};
var result = await _activityPubService.PostDataAsync(acceptFollow, followerHost, activity.apObject);
return(result == HttpStatusCode.Accepted ||
result == HttpStatusCode.OK); //TODO: revamp this for better error handling
}
public async Task <bool> FollowRequestedAsync(string signature, string method, string path, string queryString, Dictionary <string, string> requestHeaders, ActivityFollow activity, string body)
{
// Validate
var sigValidation = await ValidateSignature(activity.actor, signature, method, path, queryString, requestHeaders, body);
if (!sigValidation.SignatureIsValidated)
{
return(false);
}
// Save Follow in DB
var followerUserName = sigValidation.User.preferredUsername.ToLowerInvariant();
var followerHost = sigValidation.User.url.Replace("https://", string.Empty).Split('/').First();
var followerInbox = sigValidation.User.inbox;
var followerSharedInbox = sigValidation.User?.endpoints?.sharedInbox;
var twitterUser = activity.apObject.Split('/').Last().Replace("@", string.Empty);
// Make sure to only keep routes
followerInbox = OnlyKeepRoute(followerInbox, followerHost);
followerSharedInbox = OnlyKeepRoute(followerSharedInbox, followerHost);
var user = _twitterUserService.GetUser(twitterUser);
if (!user.Protected)
{
// Execute
await _processFollowUser.ExecuteAsync(followerUserName, followerHost, twitterUser, followerInbox, followerSharedInbox);
// Send Accept Activity
var acceptFollow = new ActivityAcceptFollow()
{
context = "https://www.w3.org/ns/activitystreams",
id = $"{activity.apObject}#accepts/follows/{Guid.NewGuid()}",
type = "Accept",
actor = activity.apObject,
apObject = new ActivityFollow()
{
id = activity.id,
type = activity.type,
actor = activity.actor,
apObject = activity.apObject
}
};
var result = await _activityPubService.PostDataAsync(acceptFollow, followerHost, activity.apObject);
return(result == HttpStatusCode.Accepted || result == HttpStatusCode.OK); //TODO: revamp this for better error handling
}
else
{
// Send Reject Activity
var acceptFollow = new ActivityRejectFollow()
{
context = "https://www.w3.org/ns/activitystreams",
id = $"{activity.apObject}#rejects/follows/{Guid.NewGuid()}",
type = "Reject",
actor = activity.apObject,
apObject = new ActivityFollow()
{
id = activity.id,
type = activity.type,
actor = activity.actor,
apObject = activity.apObject
}
};
var result = await _activityPubService.PostDataAsync(acceptFollow, followerHost, activity.apObject);
return(result == HttpStatusCode.Accepted || result == HttpStatusCode.OK); //TODO: revamp this for better error handling
}
}
public async Task <bool> FollowRequestedAsync(string signature, string method, string path, string queryString, Dictionary <string, string> requestHeaders, ActivityFollow activity, string body)
{
// Validate
var sigValidation = await ValidateSignature(activity.actor, signature, method, path, queryString, requestHeaders, body);
if (!sigValidation.SignatureIsValidated)
{
return(false);
}
// Prepare data
var followerUserName = sigValidation.User.preferredUsername.ToLowerInvariant().Trim();
var followerHost = sigValidation.User.url.Replace("https://", string.Empty).Split('/').First();
var followerInbox = sigValidation.User.inbox;
var followerSharedInbox = sigValidation.User?.endpoints?.sharedInbox;
var twitterUser = activity.apObject.Split('/').Last().Replace("@", string.Empty).ToLowerInvariant().Trim();
// Make sure to only keep routes
followerInbox = OnlyKeepRoute(followerInbox, followerHost);
followerSharedInbox = OnlyKeepRoute(followerSharedInbox, followerHost);
// Validate Moderation status
var followerModPolicy = _moderationRepository.GetModerationType(ModerationEntityTypeEnum.Follower);
if (followerModPolicy != ModerationTypeEnum.None)
{
var followerStatus = _moderationRepository.CheckStatus(ModerationEntityTypeEnum.Follower, $"@{followerUserName}@{followerHost}");
if (followerModPolicy == ModerationTypeEnum.WhiteListing && followerStatus != ModeratedTypeEnum.WhiteListed ||
followerModPolicy == ModerationTypeEnum.BlackListing && followerStatus == ModeratedTypeEnum.BlackListed)
{
return(await SendRejectFollowAsync(activity, followerHost));
}
}
// Validate TwitterAccount status
var twitterAccountModPolicy = _moderationRepository.GetModerationType(ModerationEntityTypeEnum.TwitterAccount);
if (twitterAccountModPolicy != ModerationTypeEnum.None)
{
var twitterUserStatus = _moderationRepository.CheckStatus(ModerationEntityTypeEnum.TwitterAccount, twitterUser);
if (twitterAccountModPolicy == ModerationTypeEnum.WhiteListing && twitterUserStatus != ModeratedTypeEnum.WhiteListed ||
twitterAccountModPolicy == ModerationTypeEnum.BlackListing && twitterUserStatus == ModeratedTypeEnum.BlackListed)
{
return(await SendRejectFollowAsync(activity, followerHost));
}
}
// Validate User Protected
var user = _twitterUserService.GetUser(twitterUser);
if (!user.Protected)
{
// Execute
await _processFollowUser.ExecuteAsync(followerUserName, followerHost, twitterUser, followerInbox, followerSharedInbox, activity.actor);
return(await SendAcceptFollowAsync(activity, followerHost));
}
else
{
return(await SendRejectFollowAsync(activity, followerHost));
}
}