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