package registry // import "github.com/docker/docker/registry"

 
 import (
 	"encoding/json"

 	"errors"

 	"fmt"
 	"io"
 	"io/ioutil"

 	"net"

 	"net/http"
 	"net/http/httptest"

 	"net/url"

 	"strconv"

 	"strings"

 	"testing"
 	"time"

 	"github.com/docker/distribution/reference"

 	registrytypes "github.com/docker/docker/api/types/registry"

 	"github.com/gorilla/mux"
 

 	"github.com/sirupsen/logrus"

 )
 
 var (

 	testHTTPServer  *httptest.Server
 	testHTTPSServer *httptest.Server
 	testLayers      = map[string]map[string]string{

 		"77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20": {
 			"json": `{"id":"77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20",
 				"comment":"test base image","created":"2013-03-23T12:53:11.10432-07:00",
 				"container_config":{"Hostname":"","User":"","Memory":0,"MemorySwap":0,
 				"CpuShares":0,"AttachStdin":false,"AttachStdout":false,"AttachStderr":false,

 				"Tty":false,"OpenStdin":false,"StdinOnce":false,

 				"Env":null,"Cmd":null,"Dns":null,"Image":"","Volumes":null,
 				"VolumesFrom":"","Entrypoint":null},"Size":424242}`,
 			"checksum_simple": "sha256:1ac330d56e05eef6d438586545ceff7550d3bdcb6b19961f12c5ba714ee1bb37",
 			"checksum_tarsum": "tarsum+sha256:4409a0685741ca86d38df878ed6f8cbba4c99de5dc73cd71aef04be3bb70be7c",
 			"ancestry":        `["77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20"]`,
 			"layer": string([]byte{
 				0x1f, 0x8b, 0x08, 0x08, 0x0e, 0xb0, 0xee, 0x51, 0x02, 0x03, 0x6c, 0x61, 0x79, 0x65,
 				0x72, 0x2e, 0x74, 0x61, 0x72, 0x00, 0xed, 0xd2, 0x31, 0x0e, 0xc2, 0x30, 0x0c, 0x05,
 				0x50, 0xcf, 0x9c, 0xc2, 0x27, 0x48, 0xed, 0x38, 0x4e, 0xce, 0x13, 0x44, 0x2b, 0x66,
 				0x62, 0x24, 0x8e, 0x4f, 0xa0, 0x15, 0x63, 0xb6, 0x20, 0x21, 0xfc, 0x96, 0xbf, 0x78,
 				0xb0, 0xf5, 0x1d, 0x16, 0x98, 0x8e, 0x88, 0x8a, 0x2a, 0xbe, 0x33, 0xef, 0x49, 0x31,
 				0xed, 0x79, 0x40, 0x8e, 0x5c, 0x44, 0x85, 0x88, 0x33, 0x12, 0x73, 0x2c, 0x02, 0xa8,
 				0xf0, 0x05, 0xf7, 0x66, 0xf5, 0xd6, 0x57, 0x69, 0xd7, 0x7a, 0x19, 0xcd, 0xf5, 0xb1,
 				0x6d, 0x1b, 0x1f, 0xf9, 0xba, 0xe3, 0x93, 0x3f, 0x22, 0x2c, 0xb6, 0x36, 0x0b, 0xf6,
 				0xb0, 0xa9, 0xfd, 0xe7, 0x94, 0x46, 0xfd, 0xeb, 0xd1, 0x7f, 0x2c, 0xc4, 0xd2, 0xfb,
 				0x97, 0xfe, 0x02, 0x80, 0xe4, 0xfd, 0x4f, 0x77, 0xae, 0x6d, 0x3d, 0x81, 0x73, 0xce,
 				0xb9, 0x7f, 0xf3, 0x04, 0x41, 0xc1, 0xab, 0xc6, 0x00, 0x0a, 0x00, 0x00,
 			}),
 		},
 		"42d718c941f5c532ac049bf0b0ab53f0062f09a03afd4aa4a02c098e46032b9d": {
 			"json": `{"id":"42d718c941f5c532ac049bf0b0ab53f0062f09a03afd4aa4a02c098e46032b9d",
 				"parent":"77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20",
 				"comment":"test base image","created":"2013-03-23T12:55:11.10432-07:00",
 				"container_config":{"Hostname":"","User":"","Memory":0,"MemorySwap":0,
 				"CpuShares":0,"AttachStdin":false,"AttachStdout":false,"AttachStderr":false,

 				"Tty":false,"OpenStdin":false,"StdinOnce":false,

 				"Env":null,"Cmd":null,"Dns":null,"Image":"","Volumes":null,
 				"VolumesFrom":"","Entrypoint":null},"Size":424242}`,
 			"checksum_simple": "sha256:bea7bf2e4bacd479344b737328db47b18880d09096e6674165533aa994f5e9f2",
 			"checksum_tarsum": "tarsum+sha256:68fdb56fb364f074eec2c9b3f85ca175329c4dcabc4a6a452b7272aa613a07a2",
 			"ancestry": `["42d718c941f5c532ac049bf0b0ab53f0062f09a03afd4aa4a02c098e46032b9d",
 				"77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20"]`,
 			"layer": string([]byte{
 				0x1f, 0x8b, 0x08, 0x08, 0xbd, 0xb3, 0xee, 0x51, 0x02, 0x03, 0x6c, 0x61, 0x79, 0x65,
 				0x72, 0x2e, 0x74, 0x61, 0x72, 0x00, 0xed, 0xd1, 0x31, 0x0e, 0xc2, 0x30, 0x0c, 0x05,
 				0x50, 0xcf, 0x9c, 0xc2, 0x27, 0x48, 0x9d, 0x38, 0x8e, 0xcf, 0x53, 0x51, 0xaa, 0x56,
 				0xea, 0x44, 0x82, 0xc4, 0xf1, 0x09, 0xb4, 0xea, 0x98, 0x2d, 0x48, 0x08, 0xbf, 0xe5,
 				0x2f, 0x1e, 0xfc, 0xf5, 0xdd, 0x00, 0xdd, 0x11, 0x91, 0x8a, 0xe0, 0x27, 0xd3, 0x9e,
 				0x14, 0xe2, 0x9e, 0x07, 0xf4, 0xc1, 0x2b, 0x0b, 0xfb, 0xa4, 0x82, 0xe4, 0x3d, 0x93,
 				0x02, 0x0a, 0x7c, 0xc1, 0x23, 0x97, 0xf1, 0x5e, 0x5f, 0xc9, 0xcb, 0x38, 0xb5, 0xee,
 				0xea, 0xd9, 0x3c, 0xb7, 0x4b, 0xbe, 0x7b, 0x9c, 0xf9, 0x23, 0xdc, 0x50, 0x6e, 0xb9,
 				0xb8, 0xf2, 0x2c, 0x5d, 0xf7, 0x4f, 0x31, 0xb6, 0xf6, 0x4f, 0xc7, 0xfe, 0x41, 0x55,
 				0x63, 0xdd, 0x9f, 0x89, 0x09, 0x90, 0x6c, 0xff, 0xee, 0xae, 0xcb, 0xba, 0x4d, 0x17,
 				0x30, 0xc6, 0x18, 0xf3, 0x67, 0x5e, 0xc1, 0xed, 0x21, 0x5d, 0x00, 0x0a, 0x00, 0x00,
 			}),
 		},
 	}
 	testRepositories = map[string]map[string]string{

 		"foo42/bar": {

 			"latest": "42d718c941f5c532ac049bf0b0ab53f0062f09a03afd4aa4a02c098e46032b9d",

 			"test":   "42d718c941f5c532ac049bf0b0ab53f0062f09a03afd4aa4a02c098e46032b9d",

 		},
 	}

 	mockHosts = map[string][]net.IP{
 		"":            {net.ParseIP("0.0.0.0")},
 		"localhost":   {net.ParseIP("127.0.0.1"), net.ParseIP("::1")},
 		"example.com": {net.ParseIP("42.42.42.42")},

 		"other.com":   {net.ParseIP("43.43.43.43")},

 	}

 )
 
 func init() {
 	r := mux.NewRouter()

 
 	// /v1/

 	r.HandleFunc("/v1/_ping", handlerGetPing).Methods("GET")
 	r.HandleFunc("/v1/images/{image_id:[^/]+}/{action:json|layer|ancestry}", handlerGetImage).Methods("GET")
 	r.HandleFunc("/v1/images/{image_id:[^/]+}/{action:json|layer|checksum}", handlerPutImage).Methods("PUT")
 	r.HandleFunc("/v1/repositories/{repository:.+}/tags", handlerGetDeleteTags).Methods("GET", "DELETE")
 	r.HandleFunc("/v1/repositories/{repository:.+}/tags/{tag:.+}", handlerGetTag).Methods("GET")
 	r.HandleFunc("/v1/repositories/{repository:.+}/tags/{tag:.+}", handlerPutTag).Methods("PUT")
 	r.HandleFunc("/v1/users{null:.*}", handlerUsers).Methods("GET", "POST", "PUT")

 	r.HandleFunc("/v1/repositories/{repository:.+}{action:/images|/}", handlerImages).Methods("GET", "PUT", "DELETE")

 	r.HandleFunc("/v1/repositories/{repository:.+}/auth", handlerAuth).Methods("PUT")
 	r.HandleFunc("/v1/search", handlerSearch).Methods("GET")

 
 	// /v2/
 	r.HandleFunc("/v2/version", handlerGetPing).Methods("GET")
 

 	testHTTPServer = httptest.NewServer(handlerAccessLog(r))

 	testHTTPSServer = httptest.NewTLSServer(handlerAccessLog(r))

 
 	// override net.LookupIP
 	lookupIP = func(host string) ([]net.IP, error) {
 		if host == "127.0.0.1" {
 			// I believe in future Go versions this will fail, so let's fix it later
 			return net.LookupIP(host)
 		}
 		for h, addrs := range mockHosts {
 			if host == h {
 				return addrs, nil
 			}
 			for _, addr := range addrs {
 				if addr.String() == host {
 					return []net.IP{addr}, nil
 				}
 			}
 		}
 		return nil, errors.New("lookup: no such host")
 	}

 }
 
 func handlerAccessLog(handler http.Handler) http.Handler {
 	logHandler := func(w http.ResponseWriter, r *http.Request) {

 		logrus.Debugf("%s \"%s %s\"", r.RemoteAddr, r.Method, r.URL)

 		handler.ServeHTTP(w, r)
 	}
 	return http.HandlerFunc(logHandler)

 }
 
 func makeURL(req string) string {

 	return testHTTPServer.URL + req

 }
 

 func makeHTTPSURL(req string) string {

 	return testHTTPSServer.URL + req
 }
 

 func makeIndex(req string) *registrytypes.IndexInfo {
 	index := &registrytypes.IndexInfo{

 		Name: makeURL(req),
 	}
 	return index
 }
 

 func makeHTTPSIndex(req string) *registrytypes.IndexInfo {
 	index := &registrytypes.IndexInfo{

 		Name: makeHTTPSURL(req),

 	}
 	return index
 }
 

 func makePublicIndex() *registrytypes.IndexInfo {
 	index := &registrytypes.IndexInfo{

 		Name:     IndexServer,

 		Secure:   true,
 		Official: true,
 	}
 	return index
 }
 

 func makeServiceConfig(mirrors []string, insecureRegistries []string) (*serviceConfig, error) {

 	options := ServiceOptions{
 		Mirrors:            mirrors,
 		InsecureRegistries: insecureRegistries,

 	}
 

 	return newServiceConfig(options)

 }
 

 func writeHeaders(w http.ResponseWriter) {
 	h := w.Header()
 	h.Add("Server", "docker-tests/mock")
 	h.Add("Expires", "-1")
 	h.Add("Content-Type", "application/json")
 	h.Add("Pragma", "no-cache")
 	h.Add("Cache-Control", "no-cache")
 	h.Add("X-Docker-Registry-Version", "0.0.0")
 	h.Add("X-Docker-Registry-Config", "mock")
 }
 
 func writeResponse(w http.ResponseWriter, message interface{}, code int) {
 	writeHeaders(w)
 	w.WriteHeader(code)
 	body, err := json.Marshal(message)
 	if err != nil {
 		io.WriteString(w, err.Error())
 		return
 	}
 	w.Write(body)
 }
 
 func readJSON(r *http.Request, dest interface{}) error {
 	body, err := ioutil.ReadAll(r.Body)
 	if err != nil {
 		return err
 	}
 	return json.Unmarshal(body, dest)
 }
 
 func apiError(w http.ResponseWriter, message string, code int) {
 	body := map[string]string{
 		"error": message,
 	}
 	writeResponse(w, body, code)
 }
 
 func assertEqual(t *testing.T, a interface{}, b interface{}, message string) {
 	if a == b {
 		return
 	}
 	if len(message) == 0 {
 		message = fmt.Sprintf("%v != %v", a, b)
 	}
 	t.Fatal(message)
 }
 

 func assertNotEqual(t *testing.T, a interface{}, b interface{}, message string) {
 	if a != b {
 		return
 	}
 	if len(message) == 0 {
 		message = fmt.Sprintf("%v == %v", a, b)
 	}
 	t.Fatal(message)
 }
 
 // Similar to assertEqual, but does not stop test
 func checkEqual(t *testing.T, a interface{}, b interface{}, messagePrefix string) {
 	if a == b {
 		return
 	}
 	message := fmt.Sprintf("%v != %v", a, b)
 	if len(messagePrefix) != 0 {
 		message = messagePrefix + ": " + message
 	}
 	t.Error(message)
 }
 
 // Similar to assertNotEqual, but does not stop test
 func checkNotEqual(t *testing.T, a interface{}, b interface{}, messagePrefix string) {
 	if a != b {
 		return
 	}
 	message := fmt.Sprintf("%v == %v", a, b)
 	if len(messagePrefix) != 0 {
 		message = messagePrefix + ": " + message
 	}
 	t.Error(message)
 }
 

 func requiresAuth(w http.ResponseWriter, r *http.Request) bool {
 	writeCookie := func() {
 		value := fmt.Sprintf("FAKE-SESSION-%d", time.Now().UnixNano())
 		cookie := &http.Cookie{Name: "session", Value: value, MaxAge: 3600}
 		http.SetCookie(w, cookie)

 		//FIXME(sam): this should be sent only on Index routes
 		value = fmt.Sprintf("FAKE-TOKEN-%d", time.Now().UnixNano())
 		w.Header().Add("X-Docker-Token", value)

 	}
 	if len(r.Cookies()) > 0 {
 		writeCookie()
 		return true
 	}
 	if len(r.Header.Get("Authorization")) > 0 {
 		writeCookie()
 		return true
 	}
 	w.Header().Add("WWW-Authenticate", "token")
 	apiError(w, "Wrong auth", 401)
 	return false
 }
 
 func handlerGetPing(w http.ResponseWriter, r *http.Request) {
 	writeResponse(w, true, 200)
 }
 
 func handlerGetImage(w http.ResponseWriter, r *http.Request) {
 	if !requiresAuth(w, r) {
 		return
 	}
 	vars := mux.Vars(r)
 	layer, exists := testLayers[vars["image_id"]]
 	if !exists {
 		http.NotFound(w, r)
 		return
 	}
 	writeHeaders(w)

 	layerSize := len(layer["layer"])
 	w.Header().Add("X-Docker-Size", strconv.Itoa(layerSize))

 	io.WriteString(w, layer[vars["action"]])
 }
 
 func handlerPutImage(w http.ResponseWriter, r *http.Request) {
 	if !requiresAuth(w, r) {
 		return
 	}
 	vars := mux.Vars(r)

 	imageID := vars["image_id"]

 	action := vars["action"]

 	layer, exists := testLayers[imageID]

 	if !exists {
 		if action != "json" {
 			http.NotFound(w, r)
 			return
 		}
 		layer = make(map[string]string)

 		testLayers[imageID] = layer

 	}
 	if checksum := r.Header.Get("X-Docker-Checksum"); checksum != "" {
 		if checksum != layer["checksum_simple"] && checksum != layer["checksum_tarsum"] {
 			apiError(w, "Wrong checksum", 400)
 			return
 		}
 	}
 	body, err := ioutil.ReadAll(r.Body)
 	if err != nil {
 		apiError(w, fmt.Sprintf("Error: %s", err), 500)
 		return
 	}
 	layer[action] = string(body)
 	writeResponse(w, true, 200)
 }
 
 func handlerGetDeleteTags(w http.ResponseWriter, r *http.Request) {
 	if !requiresAuth(w, r) {
 		return
 	}

 	repositoryName, err := reference.WithName(mux.Vars(r)["repository"])
 	if err != nil {
 		apiError(w, "Could not parse repository", 400)
 		return
 	}
 	tags, exists := testRepositories[repositoryName.String()]

 	if !exists {
 		apiError(w, "Repository not found", 404)

 		return

 	}
 	if r.Method == "DELETE" {

 		delete(testRepositories, repositoryName.String())

 		writeResponse(w, true, 200)
 		return
 	}
 	writeResponse(w, tags, 200)
 }
 
 func handlerGetTag(w http.ResponseWriter, r *http.Request) {
 	if !requiresAuth(w, r) {
 		return
 	}
 	vars := mux.Vars(r)

 	repositoryName, err := reference.WithName(vars["repository"])
 	if err != nil {
 		apiError(w, "Could not parse repository", 400)
 		return
 	}

 	tagName := vars["tag"]

 	tags, exists := testRepositories[repositoryName.String()]

 	if !exists {
 		apiError(w, "Repository not found", 404)

 		return

 	}
 	tag, exists := tags[tagName]
 	if !exists {
 		apiError(w, "Tag not found", 404)

 		return

 	}
 	writeResponse(w, tag, 200)
 }
 
 func handlerPutTag(w http.ResponseWriter, r *http.Request) {
 	if !requiresAuth(w, r) {
 		return
 	}
 	vars := mux.Vars(r)

 	repositoryName, err := reference.WithName(vars["repository"])
 	if err != nil {
 		apiError(w, "Could not parse repository", 400)
 		return
 	}

 	tagName := vars["tag"]

 	tags, exists := testRepositories[repositoryName.String()]

 	if !exists {

 		tags = make(map[string]string)
 		testRepositories[repositoryName.String()] = tags

 	}
 	tagValue := ""
 	readJSON(r, tagValue)
 	tags[tagName] = tagValue
 	writeResponse(w, true, 200)
 }
 
 func handlerUsers(w http.ResponseWriter, r *http.Request) {
 	code := 200
 	if r.Method == "POST" {
 		code = 201
 	} else if r.Method == "PUT" {
 		code = 204
 	}
 	writeResponse(w, "", code)
 }
 
 func handlerImages(w http.ResponseWriter, r *http.Request) {

 	u, _ := url.Parse(testHTTPServer.URL)

 	w.Header().Add("X-Docker-Endpoints", fmt.Sprintf("%s 	,  %s ", u.Host, "test.example.com"))

 	w.Header().Add("X-Docker-Token", fmt.Sprintf("FAKE-SESSION-%d", time.Now().UnixNano()))

 	if r.Method == "PUT" {

 		if strings.HasSuffix(r.URL.Path, "images") {
 			writeResponse(w, "", 204)
 			return
 		}

 		writeResponse(w, "", 200)
 		return
 	}
 	if r.Method == "DELETE" {
 		writeResponse(w, "", 204)
 		return
 	}

 	var images []map[string]string

 	for imageID, layer := range testLayers {

 		image := make(map[string]string)

 		image["id"] = imageID

 		image["checksum"] = layer["checksum_tarsum"]

 		image["Tag"] = "latest"

 		images = append(images, image)

 	}
 	writeResponse(w, images, 200)
 }
 
 func handlerAuth(w http.ResponseWriter, r *http.Request) {
 	writeResponse(w, "OK", 200)
 }
 
 func handlerSearch(w http.ResponseWriter, r *http.Request) {

 	result := &registrytypes.SearchResults{

 		Query:      "fakequery",
 		NumResults: 1,

 		Results:    []registrytypes.SearchResult{{Name: "fakeimage", StarCount: 42}},

 	}
 	writeResponse(w, result, 200)

 }
 
 func TestPing(t *testing.T) {
 	res, err := http.Get(makeURL("/v1/_ping"))
 	if err != nil {
 		t.Fatal(err)
 	}
 	assertEqual(t, res.StatusCode, 200, "")
 	assertEqual(t, res.Header.Get("X-Docker-Registry-Config"), "mock",
 		"This is not a Mocked Registry")
 }
 
 /* Uncomment this to test Mocked Registry locally with curl
  * WARNING: Don't push on the repos uncommented, it'll block the tests

  *

 func TestWait(t *testing.T) {

 	logrus.Println("Test HTTP server ready and waiting:", testHTTPServer.URL)

 	c := make(chan int)
 	<-c
 }

 //*/