/
wsmock.go
119 lines (100 loc) · 2.92 KB
/
wsmock.go
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package wsmock
import (
"fmt"
"net/http"
"path/filepath"
"runtime"
"strings"
"github.com/ActiveState/cli/internal/fileutils"
"github.com/ActiveState/cli/internal/logging"
"github.com/ActiveState/cli/internal/multilog"
"github.com/gorilla/websocket"
"github.com/posener/wstest"
)
type WsMock struct {
upgrader websocket.Upgrader
responders map[string]string
responsePath string
responseQueue []string
done chan bool
}
func Init() *WsMock {
mock := &WsMock{
responders: map[string]string{},
}
mock.upgrader.CheckOrigin = func(r *http.Request) bool { return true }
return mock
}
func (s *WsMock) Dialer() *websocket.Dialer {
return wstest.NewDialer(s)
}
func (s *WsMock) RegisterWithResponse(requestContains string, responseFile string) {
s.responders[requestContains] = responseFile
}
func (s *WsMock) QueueResponse(responseFile string) {
responseFile = s.getResponseFile(responseFile)
response := string(fileutils.ReadFileUnsafe(responseFile))
s.responseQueue = append(s.responseQueue, response)
}
func (s *WsMock) Close() {
logging.Debug("Close called")
s.done <- true
}
func (s *WsMock) ServeHTTP(w http.ResponseWriter, r *http.Request) {
s.done = make(chan bool)
conn, err := s.upgrader.Upgrade(w, r, nil)
if err != nil {
panic(fmt.Sprintf("Could not upgrade connection to websocket: %v", err))
}
for s.done != nil {
logging.Debug("Loop")
_, msgBytes, err := conn.ReadMessage()
if err != nil {
if strings.HasPrefix(err.Error(), "websocket: close") {
logging.Debug("websocket close encountered")
s.Close()
return
}
multilog.Error("Reading Message failed: %v", err)
return
}
msg := string(msgBytes[:])
logging.Debug("Message received: %v", msg)
for requestContains, responseFile := range s.responders {
if strings.Contains(msg, requestContains) {
responseFile = s.getResponseFile(responseFile)
response := string(fileutils.ReadFileUnsafe(responseFile))
if err := conn.WriteMessage(websocket.TextMessage, []byte(response)); err != nil {
panic(fmt.Sprintf("Could not write response to websocket: %v", err))
}
break
}
}
for _, response := range s.responseQueue {
if err := conn.WriteMessage(websocket.TextMessage, []byte(response)); err != nil {
panic(fmt.Sprintf("Could not write response to websocket: %v", err))
}
}
s.responseQueue = []string{}
}
}
func (s *WsMock) getResponseFile(responseFile string) string {
return filepath.Join(s.getResponsePath(), responseFile) + ".json"
}
func (s *WsMock) getResponsePath() string {
if s.responsePath == "" {
_, currentFile, _, _ := runtime.Caller(0)
file := currentFile
ok := true
iter := 2
for file == currentFile && ok {
_, file, _, ok = runtime.Caller(iter)
iter = iter + 1
}
if file == "" || file == currentFile {
panic("Could not get caller")
}
s.responsePath = filepath.Join(filepath.Dir(file), "testdata", "wsresponse")
}
return s.responsePath
}