func makeHttpHandler(eng *engine.Engine, logging bool, localMethod string, localRoute string, handlerFunc HttpApiFunc, corsHeaders string, dockerVersion version.Version) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
// log the request
glog.V(0).Infof("Calling %s %s\n", localMethod, localRoute)
if logging {
glog.V(1).Infof("%s %s\n", r.Method, r.RequestURI)
}
if strings.Contains(r.Header.Get("User-Agent"), "Docker-Client/") {
userAgent := strings.Split(r.Header.Get("User-Agent"), "/")
if len(userAgent) == 2 && !dockerVersion.Equal(version.Version(userAgent[1])) {
glog.Warningf("client and server don't have the same version (client: %s, server: %s)", userAgent[1], dockerVersion)
}
}
version := version.Version(mux.Vars(r)["version"])
if version == "" {
version = utils.APIVERSION
}
if corsHeaders != "" {
writeCorsHeaders(w, r, corsHeaders)
}
if version.GreaterThan(utils.APIVERSION) {
http.Error(w, fmt.Errorf("client and server don't have same version (client API version: %s, server API version: %s)", version, utils.APIVERSION).Error(), http.StatusNotFound)
return
}
if err := handlerFunc(eng, version, w, r, mux.Vars(r)); err != nil {
glog.Errorf("Handler for %s %s returned error: %s", localMethod, localRoute, err)
httpError(w, err)
}
}
}
func createRouter(eng *engine.Engine, logging, enableCors bool, corsHeaders string, dockerVersion string) *mux.Router {
r := mux.NewRouter()
if os.Getenv("DEBUG") != "" {
AttachProfiler(r)
}
m := map[string]map[string]HttpApiFunc{
"GET": {
"/info": getInfo,
"/pod/info": getPodInfo,
"/version": getVersion,
"/list": getList,
},
"POST": {
"/container/create": postContainerCreate,
"/image/create": postImageCreate,
"/pod/create": postPodCreate,
"/pod/start": postPodStart,
"/pod/remove": postPodRemove,
"/pod/run": postPodRun,
"/pod/stop": postStop,
"/vm/create": postVmCreate,
"/vm/kill": postVmKill,
"/exec": postExec,
"/attach": postAttach,
"/tty/resize": postTtyResize,
},
"DELETE": {},
"OPTIONS": {
"": optionsHandler,
},
}
// If "api-cors-header" is not given, but "api-enable-cors" is true, we set cors to "*"
// otherwise, all head values will be passed to HTTP handler
if corsHeaders == "" && enableCors {
corsHeaders = "*"
}
for method, routes := range m {
for route, fct := range routes {
glog.V(0).Infof("Registering %s, %s\n", method, route)
// NOTE: scope issue, make sure the variables are local and won't be changed
localRoute := route
localFct := fct
localMethod := method
// build the handler function
f := makeHttpHandler(eng, logging, localMethod, localRoute, localFct, corsHeaders, version.Version(dockerVersion))
// add the new route
if localRoute == "" {
r.Methods(localMethod).HandlerFunc(f)
} else {
r.Path("/v{version:[0-9.]+}" + localRoute).Methods(localMethod).HandlerFunc(f)
r.Path(localRoute).Methods(localMethod).HandlerFunc(f)
}
}
}
return r
}