// title: app swap
// path: /swap
// method: POST
// consume: application/x-www-form-urlencoded
// responses:
// 200: Ok
// 400: Invalid data
// 401: Unauthorized
// 404: App not found
// 409: App locked
// 412: Number of units or platform don't match
func swap(w http.ResponseWriter, r *http.Request, t auth.Token) (err error) {
app1Name := r.FormValue("app1")
app2Name := r.FormValue("app2")
forceSwap := r.FormValue("force")
cnameOnly, _ := strconv.ParseBool(r.FormValue("cnameOnly"))
if forceSwap == "" {
forceSwap = "false"
}
locked1, err := app.AcquireApplicationLockWait(app1Name, t.GetUserName(), "/swap", lockWaitDuration)
if err != nil {
return err
}
defer app.ReleaseApplicationLock(app1Name)
locked2, err := app.AcquireApplicationLockWait(app2Name, t.GetUserName(), "/swap", lockWaitDuration)
if err != nil {
return err
}
defer app.ReleaseApplicationLock(app2Name)
app1, err := getApp(app1Name)
if err != nil {
return err
}
if !locked1 {
return &errors.HTTP{Code: http.StatusConflict, Message: fmt.Sprintf("%s: %s", app1.Name, &app1.Lock)}
}
app2, err := getApp(app2Name)
if err != nil {
return err
}
if !locked2 {
return &errors.HTTP{Code: http.StatusConflict, Message: fmt.Sprintf("%s: %s", app2.Name, &app2.Lock)}
}
allowed1 := permission.Check(t, permission.PermAppUpdateSwap,
contextsForApp(app1)...,
)
allowed2 := permission.Check(t, permission.PermAppUpdateSwap,
contextsForApp(app2)...,
)
if !allowed1 || !allowed2 {
return permission.ErrUnauthorized
}
evt1, err := event.New(&event.Opts{
Target: appTarget(app1Name),
Kind: permission.PermAppUpdateSwap,
Owner: t,
CustomData: event.FormToCustomData(r.Form),
Allowed: event.Allowed(permission.PermAppReadEvents, contextsForApp(app1)...),
})
if err != nil {
return err
}
evt2, err := event.New(&event.Opts{
Target: appTarget(app2Name),
Kind: permission.PermAppUpdateSwap,
Owner: t,
CustomData: event.FormToCustomData(r.Form),
Allowed: event.Allowed(permission.PermAppReadEvents, contextsForApp(app2)...),
})
if err != nil {
return err
}
defer func() { evt1.Done(err); evt2.Done(err) }()
// compare apps by platform type and number of units
if forceSwap == "false" {
if app1.Platform != app2.Platform {
return &errors.HTTP{
Code: http.StatusPreconditionFailed,
Message: "platforms don't match",
}
}
app1Units, err := app1.Units()
if err != nil {
return err
}
app2Units, err := app2.Units()
if err != nil {
return err
}
if len(app1Units) != len(app2Units) {
return &errors.HTTP{
Code: http.StatusPreconditionFailed,
Message: "number of units doesn't match",
}
}
}
return app.Swap(app1, app2, cnameOnly)
}
func swap(w http.ResponseWriter, r *http.Request, t auth.Token) error {
u, err := t.User()
if err != nil {
return err
}
app1Name := r.URL.Query().Get("app1")
app2Name := r.URL.Query().Get("app2")
forceSwap := r.URL.Query().Get("force")
if forceSwap == "" {
forceSwap = "false"
}
locked1, err := app.AcquireApplicationLockWait(app1Name, t.GetUserName(), "/swap", lockWaitDuration)
if err != nil {
return err
}
defer app.ReleaseApplicationLock(app1Name)
locked2, err := app.AcquireApplicationLockWait(app2Name, t.GetUserName(), "/swap", lockWaitDuration)
if err != nil {
return err
}
defer app.ReleaseApplicationLock(app2Name)
app1, err := getApp(app1Name, u)
if err != nil {
return err
}
if !locked1 {
return &errors.HTTP{Code: http.StatusConflict, Message: fmt.Sprintf("%s: %s", app1.Name, &app1.Lock)}
}
app2, err := getApp(app2Name, u)
if err != nil {
return err
}
if !locked2 {
return &errors.HTTP{Code: http.StatusConflict, Message: fmt.Sprintf("%s: %s", app2.Name, &app2.Lock)}
}
// compare apps by platform type and number of units
if forceSwap == "false" {
if app1.Platform != app2.Platform {
return &errors.HTTP{
Code: http.StatusPreconditionFailed,
Message: "platforms don't match",
}
}
app1Units, err := app1.Units()
if err != nil {
return err
}
app2Units, err := app2.Units()
if err != nil {
return err
}
if len(app1Units) != len(app2Units) {
return &errors.HTTP{
Code: http.StatusPreconditionFailed,
Message: "number of units doesn't match",
}
}
}
rec.Log(u.Email, "swap", "app1="+app1Name, "app2="+app2Name)
return app.Swap(app1, app2)
}
func swap(w http.ResponseWriter, r *http.Request, t auth.Token) error {
getApp := func(name string, u *auth.User, r *http.Request) (app.App, error) {
a, err := app.GetByName(name)
if err != nil {
return app.App{}, &errors.HTTP{Code: http.StatusNotFound, Message: fmt.Sprintf("App %s not found.", name)}
}
if u == nil || u.IsAdmin() {
return *a, nil
}
if !auth.CheckUserAccess(a.Teams, u) {
return *a, &errors.HTTP{Code: http.StatusForbidden, Message: "user does not have access to this app"}
}
return *a, nil
}
u, err := t.User()
if err != nil {
return err
}
app1Name := r.URL.Query().Get("app1")
app2Name := r.URL.Query().Get("app2")
forceSwap := r.URL.Query().Get("force")
if forceSwap == "" {
forceSwap = "false"
}
locked1, err := app.AcquireApplicationLockWait(app1Name, t.GetUserName(), "/swap", lockWaitDuration)
if err != nil {
return err
}
defer app.ReleaseApplicationLock(app1Name)
locked2, err := app.AcquireApplicationLockWait(app2Name, t.GetUserName(), "/swap", lockWaitDuration)
if err != nil {
return err
}
defer app.ReleaseApplicationLock(app2Name)
app1, err := getApp(app1Name, u, r)
if err != nil {
return err
}
if !locked1 {
return &errors.HTTP{Code: http.StatusConflict, Message: fmt.Sprintf("%s: %s", app1.Name, &app1.Lock)}
}
app2, err := getApp(app2Name, u, r)
if err != nil {
return err
}
if !locked2 {
return &errors.HTTP{Code: http.StatusConflict, Message: fmt.Sprintf("%s: %s", app2.Name, &app2.Lock)}
}
// compare apps by platform type and number of units
if forceSwap == "false" {
if app1.Platform != app2.Platform {
return &errors.HTTP{
Code: http.StatusPreconditionFailed,
Message: "platforms don't match",
}
}
if len(app1.Units()) != len(app2.Units()) {
return &errors.HTTP{
Code: http.StatusPreconditionFailed,
Message: "number of units doesn't match",
}
}
}
rec.Log(u.Email, "swap", "app1="+app1Name, "app2="+app2Name)
return app.Swap(&app1, &app2)
}
func (m *appLockMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
if r.Method == "GET" {
next(w, r)
return
}
currentHandler := context.GetDelayedHandler(r)
if currentHandler != nil {
currentHandlerPtr := reflect.ValueOf(currentHandler).Pointer()
for _, h := range m.excludedHandlers {
if reflect.ValueOf(h).Pointer() == currentHandlerPtr {
next(w, r)
return
}
}
}
appName := r.URL.Query().Get(":app")
if appName == "" {
appName = r.URL.Query().Get(":appname")
}
if appName == "" {
next(w, r)
return
}
t := context.GetAuthToken(r)
var owner string
if t != nil {
if t.IsAppToken() {
owner = t.GetAppName()
} else {
owner = t.GetUserName()
}
}
_, err := app.GetByName(appName)
if err == app.ErrAppNotFound {
context.AddRequestError(r, &errors.HTTP{Code: http.StatusNotFound, Message: err.Error()})
return
}
ok, err := app.AcquireApplicationLockWait(appName, owner, fmt.Sprintf("%s %s", r.Method, r.URL.Path), lockWaitDuration)
if err != nil {
context.AddRequestError(r, fmt.Errorf("Error trying to acquire application lock: %s", err))
return
}
if ok {
defer func() {
if !context.IsPreventUnlock(r) {
app.ReleaseApplicationLock(appName)
}
}()
next(w, r)
return
}
a, err := app.GetByName(appName)
httpErr := &errors.HTTP{Code: http.StatusInternalServerError}
if err != nil {
if err == app.ErrAppNotFound {
httpErr.Code = http.StatusNotFound
httpErr.Message = err.Error()
} else {
httpErr.Message = fmt.Sprintf("Error to get application: %s", err)
}
} else {
httpErr.Code = http.StatusConflict
if a.Lock.Locked {
httpErr.Message = fmt.Sprintf("%s", &a.Lock)
} else {
httpErr.Message = "Not locked anymore, please try again."
}
}
context.AddRequestError(r, httpErr)
}
func swap(w http.ResponseWriter, r *http.Request, t auth.Token) error {
u, err := t.User()
if err != nil {
return err
}
app1Name := r.URL.Query().Get("app1")
app2Name := r.URL.Query().Get("app2")
forceSwap := r.URL.Query().Get("force")
cnameOnly, _ := strconv.ParseBool(r.URL.Query().Get("cnameOnly"))
if forceSwap == "" {
forceSwap = "false"
}
locked1, err := app.AcquireApplicationLockWait(app1Name, t.GetUserName(), "/swap", lockWaitDuration)
if err != nil {
return err
}
defer app.ReleaseApplicationLock(app1Name)
locked2, err := app.AcquireApplicationLockWait(app2Name, t.GetUserName(), "/swap", lockWaitDuration)
if err != nil {
return err
}
defer app.ReleaseApplicationLock(app2Name)
app1, err := getApp(app1Name)
if err != nil {
return err
}
if !locked1 {
return &errors.HTTP{Code: http.StatusConflict, Message: fmt.Sprintf("%s: %s", app1.Name, &app1.Lock)}
}
app2, err := getApp(app2Name)
if err != nil {
return err
}
if !locked2 {
return &errors.HTTP{Code: http.StatusConflict, Message: fmt.Sprintf("%s: %s", app2.Name, &app2.Lock)}
}
allowed1 := permission.Check(t, permission.PermAppUpdateSwap,
append(permission.Contexts(permission.CtxTeam, app1.Teams),
permission.Context(permission.CtxApp, app1.Name),
permission.Context(permission.CtxPool, app1.Pool),
)...,
)
allowed2 := permission.Check(t, permission.PermAppUpdateSwap,
append(permission.Contexts(permission.CtxTeam, app2.Teams),
permission.Context(permission.CtxApp, app2.Name),
permission.Context(permission.CtxPool, app2.Pool),
)...,
)
if !allowed1 || !allowed2 {
return permission.ErrUnauthorized
}
// compare apps by platform type and number of units
if forceSwap == "false" {
if app1.Platform != app2.Platform {
return &errors.HTTP{
Code: http.StatusPreconditionFailed,
Message: "platforms don't match",
}
}
app1Units, err := app1.Units()
if err != nil {
return err
}
app2Units, err := app2.Units()
if err != nil {
return err
}
if len(app1Units) != len(app2Units) {
return &errors.HTTP{
Code: http.StatusPreconditionFailed,
Message: "number of units doesn't match",
}
}
}
rec.Log(u.Email, "swap", "app1="+app1Name, "app2="+app2Name)
return app.Swap(app1, app2, cnameOnly)
}