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/*
GoToSocial
Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package dereferencing
import (
"net/url"
)
func (d *deref) Handshaking(username string, remoteAccountID *url.URL) bool {
d.handshakeSync.Lock()
defer d.handshakeSync.Unlock()
if d.handshakes == nil {
// handshakes isn't even initialized yet so we can't be handshaking with anyone
return false
}
remoteIDs, ok := d.handshakes[username]
if !ok {
// user isn't handshaking with anyone, bail
return false
}
for _, id := range remoteIDs {
if id.String() == remoteAccountID.String() {
// we are currently handshaking with the remote account, yep
return true
}
}
// didn't find it which means we're not handshaking
return false
}
func (d *deref) startHandshake(username string, remoteAccountID *url.URL) {
d.handshakeSync.Lock()
defer d.handshakeSync.Unlock()
remoteIDs, ok := d.handshakes[username]
if !ok {
// there was nothing in there yet, so just add this entry and return
d.handshakes[username] = []*url.URL{remoteAccountID}
return
}
// add the remote ID to the slice
remoteIDs = append(remoteIDs, remoteAccountID)
d.handshakes[username] = remoteIDs
}
func (d *deref) stopHandshake(username string, remoteAccountID *url.URL) {
d.handshakeSync.Lock()
defer d.handshakeSync.Unlock()
remoteIDs, ok := d.handshakes[username]
if !ok {
return
}
newRemoteIDs := []*url.URL{}
for _, id := range remoteIDs {
if id.String() != remoteAccountID.String() {
newRemoteIDs = append(newRemoteIDs, id)
}
}
if len(newRemoteIDs) == 0 {
// there are no handshakes so just remove this user entry from the map and save a few bytes
delete(d.handshakes, username)
} else {
// there are still other handshakes ongoing
d.handshakes[username] = newRemoteIDs
}
}
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