Function getProfile

clientapi/routing/profile.go:548–584

getProfile gets the full profile of a user by querying the database or a remote homeserver. Returns an error when something goes wrong or specifically eventutil.ErrProfileNoExists when the profile doesn't exist.

(
	ctx context.Context, profileAPI userapi.ClientUserAPI, cfg *config.ClientAPI,
	userID string,
	asAPI appserviceAPI.AppServiceInternalAPI,
	federation *gomatrixserverlib.FederationClient,
)

// Returns an error when something goes wrong or specifically
// eventutil.ErrProfileNoExists when the profile doesn't exist.
func getProfile(
	ctx context.Context, profileAPI userapi.ClientUserAPI, cfg *config.ClientAPI,
	userID string,
	asAPI appserviceAPI.AppServiceInternalAPI,
	federation *gomatrixserverlib.FederationClient,
) (*authtypes.Profile, error) {
	localpart, domain, err := gomatrixserverlib.SplitID('@', userID)
	if err != nil {
		return nil, err
	}

	if domain != cfg.Matrix.ServerName {
		profile, fedErr := federation.LookupProfile(ctx, domain, userID, "")
		if fedErr != nil {
			if x, ok := fedErr.(gomatrix.HTTPError); ok {
				if x.Code == http.StatusNotFound {
					return nil, eventutil.ErrProfileNoExists
				}
			}

			return nil, fedErr
		}

		return &authtypes.Profile{
			Localpart:   localpart,
			DisplayName: profile.DisplayName,
			AvatarURL:   profile.AvatarURL,
		}, nil
	}

	profile, err := appserviceAPI.RetrieveUserProfile(ctx, userID, asAPI, profileAPI)
	if err != nil {
		return nil, err
	}

	return profile, nil
}

func buildMembershipEvents(
	ctx context.Context,