authfs: rewrite with Harvey-OS/ninep, implement Rattachharveyos

1 files changed, 60 insertions, 0 deletions

diff --git a/back/cmd/authfs/sessdir.go b/back/cmd/authfs/sessdir.go
new file mode 100644
index 0000000..186484f
--- /dev/null
+++ b/back/cmd/authfs/sessdir.go
@@ -0,0 +1,60 @@
+package main
+
+import (
+	"sync"
+
+	"git.samanthony.xyz/buth/back/auth"
+	"git.samanthony.xyz/buth/back/qver"
+)
+
+type SessionsDir struct {
+	*qver.Version
+
+	mu       sync.Mutex // guards below
+	sessions map[auth.SessId]*Session
+}
+
+func NewSessionsDir(rootVer *qver.Version) *SessionsDir {
+	return &SessionsDir{
+		qver.New(qver.Parent(rootVer)),
+		sync.Mutex{},
+		make(map[auth.SessId]*Session),
+	}
+}
+
+func (dir *SessionsDir) Close() {
+	dir.mu.Lock()
+	// Don't unlock
+
+	dir.Version.Close()
+	for id, sess := range dir.sessions {
+		sess.Close()
+		delete(dir.sessions, id)
+	}
+}
+
+// Get returns the session with the given ID if it exists, or false if it doesn't.
+func (dir *SessionsDir) Get(id auth.SessId) (*Session, bool) {
+	dir.mu.Lock()
+	defer dir.mu.Unlock()
+	sess, ok := dir.sessions[id]
+	return sess, ok
+}
+
+// Owner returns the owner of the given session if it exists, or false if it doesn't.
+func (dir *SessionsDir) Owner(id auth.SessId) (auth.Uname, bool) {
+	if sess, ok := dir.Get(id); ok {
+		return sess.Uname, ok
+	}
+	return "", false
+}
+
+func (dir *SessionsDir) Kill(id auth.SessId) {
+	dir.mu.Lock()
+	defer dir.mu.Unlock()
+	if sess, ok := dir.sessions[id]; ok {
+		sess.Close()
+		delete(dir.sessions, id)
+		dir.Version.Bump()
+	}
+}