Added target and terminal support.v1.1.0

Signed-off-by: Sebastien Douheret <sebastien.douheret@iot.bzh>

1 files changed, 159 insertions, 0 deletions

diff --git a/lib/xdsserver/terminals.go b/lib/xdsserver/terminals.go
new file mode 100644
index 0000000..36623ab
--- /dev/null
+++ b/lib/xdsserver/terminals.go
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2018 "IoT.bzh"
+ * Author Sebastien Douheret <sebastien@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package xdsserver
+
+import (
+	"fmt"
+
+	"gerrit.automotivelinux.org/gerrit/src/xds/xds-server/lib/xsapiv1"
+	socketio "github.com/googollee/go-socket.io"
+	"github.com/syncthing/syncthing/lib/sync"
+)
+
+// Terminals Represent a XDS terminals
+type Terminals struct {
+	*Context
+	terms map[string]*ITERMINAL
+}
+
+// Mutex to make add/delete atomic
+var tmMutex = sync.NewMutex()
+
+// TerminalsConstructor Create a new instance of Model Terminal
+func TerminalsConstructor(ctx *Context) *Terminals {
+	return &Terminals{
+		Context: ctx,
+		terms:   make(map[string]*ITERMINAL),
+	}
+}
+
+// New Create a new terminal
+func (t *Terminals) New(cfg xsapiv1.TerminalConfig, targetID string) (*xsapiv1.TerminalConfig, error) {
+
+	tmMutex.Lock()
+	defer tmMutex.Unlock()
+
+	var newT ITERMINAL
+
+	// For now, only SSH term is supported
+	switch cfg.Type {
+	case xsapiv1.TypeTermSSH:
+		newT = NewTermSSH(t.Context, cfg, targetID)
+	default:
+		return nil, fmt.Errorf("terminal type not set")
+	}
+
+	termCfg := newT.GetConfig()
+
+	t.terms[termCfg.ID] = &newT
+
+	return &termCfg, nil
+}
+
+// Free a specific terminal
+func (t *Terminals) Free(id string) (*xsapiv1.TerminalConfig, error) {
+
+	tmMutex.Lock()
+	defer tmMutex.Unlock()
+
+	tc := t.Get(id)
+	if tc == nil {
+		return nil, fmt.Errorf("Unknown id")
+	}
+
+	if _, err := (*tc).Close(); err != nil {
+		return nil, err
+	}
+
+	resTerm := (*tc).GetConfig()
+
+	delete(t.terms, id)
+
+	return &resTerm, nil
+}
+
+// Get returns the terminal config or nil if not existing
+func (t *Terminals) Get(id string) *ITERMINAL {
+	if id == "" {
+		return nil
+	}
+	tc, exist := t.terms[id]
+	if !exist {
+		return nil
+	}
+	return tc
+}
+
+// GetConfigArr returns the config of all terminals as an array
+func (t *Terminals) GetConfigArr() []xsapiv1.TerminalConfig {
+	tmMutex.Lock()
+	defer tmMutex.Unlock()
+
+	return t.getConfigArrUnsafe()
+}
+
+// getConfigArrUnsafe Same as GetConfigArr without mutex protection
+func (t *Terminals) getConfigArrUnsafe() []xsapiv1.TerminalConfig {
+	conf := []xsapiv1.TerminalConfig{}
+	for _, v := range t.terms {
+		conf = append(conf, (*v).GetConfig())
+	}
+	return conf
+}
+
+// Open adds a new terminal
+func (t *Terminals) Open(id string, sock *socketio.Socket, sessID string) (*xsapiv1.TerminalConfig, error) {
+	tc := t.Get(id)
+	if tc == nil {
+		return nil, fmt.Errorf("Unknown id")
+	}
+	return (*tc).Open(sock, sessID)
+}
+
+// Close a specific terminal
+func (t *Terminals) Close(id string) (*xsapiv1.TerminalConfig, error) {
+	tc := t.Get(id)
+	if tc == nil {
+		return nil, fmt.Errorf("Unknown id")
+	}
+	return (*tc).Close()
+}
+
+// Resize a specific terminal
+func (t *Terminals) Resize(id string, cols, rows uint16) (*xsapiv1.TerminalConfig, error) {
+	tmMutex.Lock()
+	defer tmMutex.Unlock()
+
+	tc := t.Get(id)
+	if tc == nil {
+		return nil, fmt.Errorf("Unknown id")
+	}
+	return (*tc).Resize(cols, rows)
+}
+
+// Signal Send a Signal a specific terminal
+func (t *Terminals) Signal(id, sigName string) error {
+	tmMutex.Lock()
+	defer tmMutex.Unlock()
+
+	tc := t.Get(id)
+	if tc == nil {
+		return fmt.Errorf("Unknown id")
+	}
+	return (*tc).Signal(sigName)
+}