implement stats.

internal/room/containers.go

@@ -1,6 +1,7 @@
 package room
 
 import (
+	"io"
 	"context"
 	"fmt"
 	"time"
@@ -108,3 +109,29 @@ func (manager *RoomManagerCtx) inspectContainer(id string) (*dockerTypes.Contain
 
 	return &container, nil
 }
+
+func (manager *RoomManagerCtx) containerExec(id string, cmd []string) (string, error) {
+	exec, err := manager.client.ContainerExecCreate(context.Background(), id, dockerTypes.ExecConfig{
+		AttachStderr: true,
+		AttachStdin:  true,
+		AttachStdout: true,
+		Cmd:          cmd,
+		Tty:          true,
+		Detach:       false,
+	})
+	if err != nil {
+		return "", err
+	}
+
+	conn, err := manager.client.ContainerExecAttach(context.Background(), exec.ID, dockerTypes.ExecStartCheck{
+		Detach: false,
+		Tty:    true,
+	})
+	if err != nil {
+		return "", err
+	}
+	defer conn.Close()
+
+	data, err := io.ReadAll(conn.Reader)
+	return string(data), err
+}

internal/room/manager.go

@@ -2,6 +2,7 @@ package room
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"strings"
 
@@ -264,7 +265,30 @@ func (manager *RoomManagerCtx) GetSettings(id string) (*types.RoomSettings, erro
 
 
 func (manager *RoomManagerCtx) GetStats(id string) (*types.RoomStats, error) {
-	return nil, fmt.Errorf("Not Implemented.")
+	container, err := manager.inspectContainer(id)
+	if err != nil {
+		return nil, err
+	}
+
+	settings := types.RoomSettings{}
+	err = settings.FromEnv(container.Config.Env)
+	if err != nil {
+		return nil, err
+	}
+
+	output, err := manager.containerExec(id, []string{
+		"wget", "-q", "-O-", "http://127.0.0.1:8080/stats?pwd="+settings.AdminPass,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	var stats types.RoomStats
+	if err := json.Unmarshal([]byte(output), &stats); err != nil {
+		return nil, err
+	}
+
+	return &stats, nil
 }
 
 

internal/utils/http.go

@@ -0,0 +1,22 @@
+package utils
+
+import (
+	"bytes"
+	"io/ioutil"
+	"net/http"
+)
+
+func HttpRequestGET(url string) (string, error) {
+	rsp, err := http.Get(url)
+	if err != nil {
+		return "", err
+	}
+	defer rsp.Body.Close()
+
+	buf, err := ioutil.ReadAll(rsp.Body)
+	if err != nil {
+		return "", err
+	}
+
+	return string(bytes.TrimSpace(buf)), nil
+}