func (c *Context) SearchRecipe(rw web.ResponseWriter, req *web.Request) {
body, err := getPostedBody(req)
if err != nil {
panic(err)
return
}
var query models.Query
err = json.Unmarshal(body, &query)
if err != nil {
handleUnmarshalError(rw, err)
return
}
results, err := (*c).api.SearchRecipe(&query)
if err != nil {
rw.WriteHeader(http.StatusInternalServerError)
panic(err)
} else {
rw.Header().Set("Content-Type", "application/json")
json.NewEncoder(rw).Encode(results) // prefaces with {"Offset": 0} ??
}
}
// TODO Should rewrite to send a 'fail' or an 'error'
func ErrorHandler(rw web.ResponseWriter, err error) {
if rw.Written() {
panic(fmt.Sprintf("Data already started to be sent to the client and i had an error: %s", err))
}
rw.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(rw, "{\"Error\": \"%s\"}", err)
}
func (c *Context) PostRecipe(rw web.ResponseWriter, req *web.Request) {
var recipe models.Recipe
body, err := getPostedBody(req)
if err != nil {
panic(err)
return
}
err = json.Unmarshal(body, &recipe)
if err != nil {
handleUnmarshalError(rw, err)
return
}
id, err := (*c).api.PostRecipe(&recipe)
if err != nil {
panic(err)
return
}
var result models.RecipeId
result.Id = id
result.Name = recipe.Name
rw.WriteHeader(http.StatusCreated)
rw.Header().Set("Content-Type", "application/json; charset=UTF-8")
json.NewEncoder(rw).Encode(result)
}
func (c *Context) UserRequired(rw web.ResponseWriter, req *web.Request, next web.NextMiddlewareFunc) {
var userInfo map[string]interface{}
if req.URL.Path == "/healthcheck" {
next(rw, req)
return
}
if req.URL.Path == "/signup" {
next(rw, req)
return
}
auth := req.Header.Get("Authorization")
if !strings.HasPrefix(strings.ToLower(auth), "bearer ") {
rw.WriteHeader(http.StatusUnauthorized)
return
}
token := auth[7:]
client := &http.Client{}
authReq, err := http.NewRequest("GET", "https://meshblu.octoblu.com/v2/whoami", nil)
authReq.Header.Add("Authorization", "Bearer "+token)
resp, err := client.Do(authReq)
if err != nil {
panic(err)
return
}
if err := json.NewDecoder(resp.Body).Decode(&userInfo); err != nil {
panic(err)
}
c.Token = token
c.UserInfo = userInfo
next(rw, req)
}
// Get counter events in a optionally given time range
// Query parameters: start,end
func (c *Context) CounterByCodeEventsHandler(rw web.ResponseWriter, req *web.Request) {
code := parseStringPathParameter(req, "code")
var counter orm.Counter
db.Where(&orm.Counter{Code: code}).First(&counter)
if counter.ID == 0 {
rw.WriteHeader(http.StatusNotFound)
rw.Write([]byte("Counter not found"))
return
}
start, err := c.parseUintQueryParameter(rw, "start")
if err != nil {
return
}
end, err := c.parseUintQueryParameter(rw, "end")
if err != nil {
return
}
var counterEvents []orm.CounterEvent
orm.GetOrderedWindowedQuery(db, "counter_id", counter.ID, start, end).Find(&counterEvents)
lastEvent := orm.NewLastCounterEvent(counter)
if lastEvent.Timestamp > end {
counterEvents = append(counterEvents, lastEvent)
}
marshal(rw, counterEvents)
}
func (this *RequestHandler) handleRequestWithPossibleErrors(response web.ResponseWriter, request *web.Request, handler func(web.ResponseWriter, *web.Request) error) {
response.Header().Add("Access-Control-Allow-Origin", "*")
err := handler(response, request)
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
fmt.Fprint(response, err.Error())
}
}
// Format Error to JSON with moreInfo link
func (c *Renderer) RenderError(rw web.ResponseWriter, err error, info string, status int) {
js, err := json.MarshalIndent(&JSONError{err.Error(), info}, "", " ")
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
log.Error("RenderError failed to marshall JSONError", err)
return
}
header := rw.Header()
header.Set("Content-Type", "application/json")
rw.WriteHeader(status)
rw.Write(js)
}
func (c *ApiContext) ValidateAwsCredentials(rw web.ResponseWriter, r *web.Request, next web.NextMiddlewareFunc) {
if ok := validatePresenceRequest(r, "AWS_ACCESS_KEY_ID", "AWS_SECRET_ACCESS_KEY"); !ok {
rw.WriteHeader(http.StatusUnauthorized)
writeJson(rw, map[string]string{
"error": "missing credentials",
})
} else {
creds := credentials.NewStaticCredentials(r.FormValue("AWS_ACCESS_KEY_ID"), r.FormValue("AWS_SECRET_ACCESS_KEY"), "")
c.AwsCredentials = creds
next(rw, r)
}
}
//SaveTask handles the endpoint POST /todo
func (c *Context) SaveTask(rw web.ResponseWriter, req *web.Request) {
var task db.Task
decoder := json.NewDecoder(req.Body)
if decoder != nil {
if err := decoder.Decode(&task); err == nil {
man.Create(&task)
rw.WriteHeader(http.StatusOK)
} else {
fmt.Fprint(rw, jsonError("trying decode, but "+err.Error()))
}
}
}
func (c *WidgetContext) MMUInfo(rw web.ResponseWriter, req *web.Request) {
build := mmu.Build{Name: appName, Version: appVersion}
git := mmu.Git{Branch: buildCommitBranch, Commit: mmu.Commit{ID: buildCommit, Time: buildCommitTime}}
mgtEndpoints := mmu.ManagementEndpoints{Info: "/internal/info", Health: "/internal/health"}
serviceDependencies := []mmu.ServiceDependency{mmu.ServiceDependency{ServiceID: "auth", Version: "2"}}
info := mmu.Info{Build: build, Git: git, ManagementEndpoints: mgtEndpoints, ServiceDependencies: serviceDependencies, SDK: buildGoSDK}
if data, err := json.Marshal(&info); err != nil {
rw.WriteHeader(500)
return
} else {
rw.Write(data)
}
}
func (c *Context) QueryVarsMiddleware(rw web.ResponseWriter, r *web.Request, next web.NextMiddlewareFunc) {
values, err := parseQueryParams(rw, r)
if err != nil {
log.Println(err)
rw.WriteHeader(http.StatusBadRequest)
rw.Write([]byte("Malformed URL"))
return
}
c.values = &values
next(rw, r)
}
// Get specific thermometer by code
func (c *Context) ThermometerByCodeHandler(rw web.ResponseWriter, req *web.Request) {
code := parseStringPathParameter(req, "code")
var thermometer orm.Thermometer
db.Where(&orm.Thermometer{Code: code}).First(&thermometer)
if thermometer.ID == 0 {
rw.WriteHeader(http.StatusNotFound)
rw.Write([]byte("Thermometer not found"))
return
}
marshal(rw, thermometer)
}
// GetBlockByNumber returns the data contained within a specific block in the
// blockchain. The genesis block is block zero.
func (s *ServerOpenchainREST) GetBlockByNumber(rw web.ResponseWriter, req *web.Request) {
// Parse out the Block id
blockNumber, err := strconv.ParseUint(req.PathParams["id"], 10, 64)
// Check for proper Block id syntax
if err != nil {
// Failure
rw.WriteHeader(400)
fmt.Fprintf(rw, "{\"Error\": \"Block id must be an integer (uint64).\"}")
} else {
// Retrieve Block from blockchain
block, err := s.server.GetBlockByNumber(context.Background(), &pb.BlockNumber{Number: blockNumber})
// Check for error
if err != nil {
// Failure
switch err {
case oc.ErrNotFound:
rw.WriteHeader(http.StatusNotFound)
default:
rw.WriteHeader(http.StatusInternalServerError)
}
fmt.Fprintf(rw, "{\"Error\": \"%s\"}", err)
} else {
// Success
rw.WriteHeader(http.StatusOK)
encoder := json.NewEncoder(rw)
encoder.Encode(block)
}
}
}
// GoSlow waits until you are ready
func GoSlow(response web.ResponseWriter, request *web.Request) {
rawDelayStr := request.PathParams["delay"]
delayStr := fmt.Sprintf("%vms", rawDelayStr)
delay, err := time.ParseDuration(delayStr)
if err != nil {
log.Printf("error: %v", err.Error())
response.WriteHeader(http.StatusNotAcceptable)
fmt.Fprint(response, `{"error": "'GET /:delay', delay must be an integer"}`)
return
}
time.Sleep(delay)
response.WriteHeader(http.StatusOK)
fmt.Fprintf(response, `{"delay": %v}`, rawDelayStr)
}
// Renders from struct to JSON
func (a *Renderer) Render(rw web.ResponseWriter, model interface{}, status int) {
jsonString, err := json.MarshalIndent(&model, "", " ")
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
log.Error("Render failed to marshall model", err)
return
}
header := rw.Header()
header.Set("Content-Type", "application/json")
header.Set("Access-Control-Allow-Origin", "*")
header.Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE")
header.Set("Access-Control-Allow-Headers", "Authorization")
rw.WriteHeader(status)
rw.Write(jsonString)
}
// MeshbluAuth checks auth headers and puts them into the context
func (context *AuthContext) MeshbluAuth(response web.ResponseWriter, request *web.Request, next web.NextMiddlewareFunc) {
if request.URL.Path == "/healthcheck" {
next(response, request)
return
}
uuid, token, ok := request.BasicAuth()
if !ok {
response.WriteHeader(http.StatusForbidden)
fmt.Fprint(response, `{"error": "Not Authorized"}`)
return
}
context.uuid = uuid
context.token = token
next(response, request)
}
// GetBlockchainInfo returns information about the blockchain ledger such as
// height, current block hash, and previous block hash.
func (s *ServerOpenchainREST) GetBlockchainInfo(rw web.ResponseWriter, req *web.Request) {
info, err := s.server.GetBlockchainInfo(context.Background(), &google_protobuf.Empty{})
encoder := json.NewEncoder(rw)
// Check for error
if err != nil {
// Failure
rw.WriteHeader(400)
fmt.Fprintf(rw, "{\"Error\": \"%s\"}", err)
} else {
// Success
rw.WriteHeader(200)
encoder.Encode(info)
}
}
func marshal(rw web.ResponseWriter, v interface{}) {
buffer, err := json.Marshal(v)
if err != nil {
log.Println("Error marshalling JSON")
rw.WriteHeader(http.StatusInternalServerError)
return
}
rw.Header().Set("Content-Type", "application/json; charset=utf-8")
if _, err = rw.Write(buffer); err != nil {
log.Println("Error writing JSON to buffer")
rw.WriteHeader(http.StatusInternalServerError)
}
}
func (c *Context) parseUintQueryParameter(rw web.ResponseWriter, name string) (ret uint64, err error) {
s := c.values.Get(name)
if s == "" {
return 0, nil
}
ret, err = parseUintFromString(s)
if err != nil {
log.Println("Error parsing uint64 " + name + ": " + s)
log.Println(err)
rw.WriteHeader(http.StatusBadRequest)
rw.Write([]byte("Malformed parameter " + name))
}
return
}
// GetPeers returns a list of all peer nodes currently connected to the target peer.
func (s *ServerOpenchainREST) GetPeers(rw web.ResponseWriter, req *web.Request) {
peers, err := s.server.GetPeers(context.Background(), &google_protobuf.Empty{})
encoder := json.NewEncoder(rw)
// Check for error
if err != nil {
// Failure
rw.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(rw, "{\"Error\": \"%s\"}", err)
restLogger.Error(fmt.Sprintf("{\"Error\": \"Querying network peers -- %s\"}", err))
} else {
// Success
rw.WriteHeader(http.StatusOK)
encoder.Encode(peers)
}
}
// CreateMessage creates a message
func (context *AuthContext) CreateMessage(response web.ResponseWriter, request *web.Request) {
buf := new(bytes.Buffer)
buf.ReadFrom(request.Body)
body := buf.String()
currentTime := time.Now().UnixNano() / (1000 * 1000)
job := fmt.Sprintf(`{"auth":{"uuid":"%v","token":"%v"},"http":%v,"message":%v}`, context.uuid, context.token, currentTime, body)
conn := context.redis.Get()
_, err := conn.Do("LPUSH", "meshblu-messages", job)
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(response, `{"error": "%v"}`, err.Error())
return
}
conn.Close()
response.WriteHeader(http.StatusOK)
fmt.Fprint(response, body)
}
func (c *Context) GeneratePresigned(rw web.ResponseWriter, req *web.Request) {
rw.Header().Set("Content-Type", "application/json; charset=UTF-8")
rw.WriteHeader(http.StatusOK)
parts := []string{
c.CrossyInfo["username"].(string),
req.PathParams["organization"],
req.PathParams["project"],
req.PathParams["packager"],
req.PathParams["version"],
req.PathParams["platform"],
req.PathParams["arch"],
req.PathParams["file"],
}
path := strings.Join(parts, "/")
presignedURL := GetS3Presigned("contribute-crossy-io", path, 90)
if err := json.NewEncoder(rw).Encode(presignedURL); err != nil {
panic(err)
}
}
// DeleteEnrollmentID removes the login token of the specified user from the
// Devops server. Once the login token is removed, the specified user will no
// longer be able to transact without logging in again. On the REST interface,
// this method may be used as a means of logging out an active client.
func (s *ServerOpenchainREST) DeleteEnrollmentID(rw web.ResponseWriter, req *web.Request) {
// Parse out the user enrollment ID
enrollmentID := req.PathParams["id"]
// Retrieve the REST data storage path
// Returns /var/openchain/production/client/
localStore := getRESTFilePath()
// Construct the path to the login token and to the directory containing the
// cert and key.
// /var/openchain/production/client/loginToken_username
loginTok := localStore + "loginToken_" + enrollmentID
// /var/openchain/production/crypto/client/username
cryptoDir := viper.GetString("peer.fileSystemPath") + "/crypto/client/" + enrollmentID
// Stat both paths to determine if the user is currently logged in
_, err1 := os.Stat(loginTok)
_, err2 := os.Stat(cryptoDir)
// If the user is not logged in, nothing to delete. Return OK.
if os.IsNotExist(err1) && os.IsNotExist(err2) {
rw.WriteHeader(http.StatusOK)
fmt.Fprintf(rw, "{\"OK\": \"User %s is not logged in.\"}", enrollmentID)
restLogger.Info("User '%s' is not logged in.\n", enrollmentID)
return
}
// The user is logged in, delete the user's login token
if err := os.RemoveAll(loginTok); err != nil {
rw.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(rw, "{\"Error\": \"Error trying to delete login token for user %s: %s\"}", enrollmentID, err)
restLogger.Error(fmt.Sprintf("{\"Error\": \"Error trying to delete login token for user %s: %s\"}", enrollmentID, err))
return
}
// The user is logged in, delete the user's cert and key directory
if err := os.RemoveAll(cryptoDir); err != nil {
rw.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(rw, "{\"Error\": \"Error trying to delete login directory for user %s: %s\"}", enrollmentID, err)
restLogger.Error(fmt.Sprintf("{\"Error\": \"Error trying to delete login directory for user %s: %s\"}", enrollmentID, err))
return
}
rw.WriteHeader(http.StatusOK)
fmt.Fprintf(rw, "{\"OK\": \"Deleted login token and directory for user %s.\"}", enrollmentID)
restLogger.Info("Deleted login token and directory for user %s.\n", enrollmentID)
return
}
// Get thermometer readings in a optionally given time range
// Query parameters: start,end
func (c *Context) ThermometerByCodeGetReadingsHandler(rw web.ResponseWriter, req *web.Request) {
code := parseStringPathParameter(req, "code")
var thermometer orm.Thermometer
db.Where(&orm.Thermometer{Code: code}).First(&thermometer)
if thermometer.ID == 0 {
rw.WriteHeader(http.StatusNotFound)
rw.Write([]byte("Thermometer not found"))
return
}
start, err := c.parseUintQueryParameter(rw, "start")
if err != nil {
return
}
end, err := c.parseUintQueryParameter(rw, "end")
if err != nil {
return
}
var thermometerReadings []orm.ThermometerReading
orm.GetOrderedWindowedQuery(db, "thermometer_id", thermometer.ID, start, end).Find(&thermometerReadings)
startReading := orm.ThermometerReading{
Reading: thermometerReadings[0].Reading,
Timestamp: start,
ThermometerID: thermometer.ID,
}
endReading := orm.ThermometerReading{
Reading: thermometerReadings[len(thermometerReadings)-1].Reading,
Timestamp: end,
ThermometerID: thermometer.ID,
}
thermometerReadings = append([]orm.ThermometerReading{startReading}, thermometerReadings...)
thermometerReadings = append(thermometerReadings, endReading)
marshal(rw, thermometerReadings)
}
// Tick counter by code
func (c *Context) CounterByCodeTickHandler(rw web.ResponseWriter, req *web.Request) {
code := parseStringPathParameter(req, "code")
var counter orm.Counter
db.Where(&orm.Counter{Code: code}).First(&counter)
if counter.ID == 0 {
rw.WriteHeader(http.StatusNotFound)
rw.Write([]byte("Counter not found"))
return
}
counterEvent := orm.NewTickCounterEvent(counter)
db.Create(&counterEvent)
counter.Reading = counterEvent.Reading
counter.LastTick = counterEvent.Timestamp
db.Save(counter)
marshal(rw, counterEvent)
}
// GetEnrollmentID checks whether a given user has already registered with the
// Devops server.
func (s *ServerOpenchainREST) GetEnrollmentID(rw web.ResponseWriter, req *web.Request) {
// Parse out the user enrollment ID
enrollmentID := req.PathParams["id"]
// Retrieve the REST data storage path
// Returns /var/openchain/production/client/
localStore := getRESTFilePath()
// If the user is already logged in, return OK. Otherwise return error.
if _, err := os.Stat(localStore + "loginToken_" + enrollmentID); err == nil {
rw.WriteHeader(http.StatusOK)
fmt.Fprintf(rw, "{\"OK\": \"User %s is already logged in.\"}", enrollmentID)
restLogger.Info("User '%s' is already logged in.\n", enrollmentID)
} else {
rw.WriteHeader(http.StatusUnauthorized)
fmt.Fprintf(rw, "{\"Error\": \"User %s must log in.\"}", enrollmentID)
restLogger.Info("User '%s' must log in.\n", enrollmentID)
}
return
}
// GetTransactionByUUID returns a transaction matching the specified UUID
func (s *ServerOpenchainREST) GetTransactionByUUID(rw web.ResponseWriter, req *web.Request) {
// Parse out the transaction UUID
txUUID := req.PathParams["uuid"]
// Retrieve the transaction matching the UUID
tx, err := s.server.GetTransactionByUUID(context.Background(), txUUID)
// Check for Error
if err != nil {
switch err {
case oc.ErrNotFound:
rw.WriteHeader(http.StatusNotFound)
fmt.Fprintf(rw, "{\"Error\": \"Transaction %s is not found.\"}", txUUID)
default:
rw.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(rw, "{\"Error\": \"Error retrieving transaction %s: %s.\"}", txUUID, err)
restLogger.Error(fmt.Sprintf("{\"Error\": \"Error retrieving transaction %s: %s.\"}", txUUID, err))
}
} else {
// Return existing transaction
rw.WriteHeader(http.StatusOK)
encoder := json.NewEncoder(rw)
encoder.Encode(tx)
restLogger.Info(fmt.Sprintf("Successfully retrieved transaction: %s", txUUID))
}
}
//AuthorizationMiddleware gets the Authorization header and verify if is valid
func (c *Context) AuthorizationMiddleware(rw web.ResponseWriter, r *web.Request,
next web.NextMiddlewareFunc) {
authArray := r.Header["Authorization"]
if len(authArray) > 0 {
authorization := strings.TrimSpace(authArray[0])
content := strings.Split(authorization, " ")
if len(content) > 1 {
method := content[0]
token := content[1]
if method == "Bearer" && token == "testkey123" {
next(rw, r)
} else {
rw.WriteHeader(http.StatusForbidden)
fmt.Fprint(rw, jsonError("invalid token"))
}
} else {
rw.WriteHeader(http.StatusForbidden)
fmt.Fprint(rw, jsonError("missing token"))
}
} else {
rw.WriteHeader(http.StatusForbidden)
fmt.Fprint(rw, jsonError("missing authorization header"))
}
}
//GetTask handles the endpoint GET /todo/1
func (c *Context) GetTask(rw web.ResponseWriter, req *web.Request) {
id, err := idFromParam(req)
if err != nil {
rw.WriteHeader(http.StatusBadRequest)
fmt.Fprint(rw, jsonError("missing id param"))
return
}
task, err := man.Get(id)
if err != nil {
rw.WriteHeader(http.StatusNotFound)
fmt.Fprint(rw, jsonError("task not found"))
return
}
jsonTask, err := json.Marshal(task)
if err != nil {
log.Println(err)
rw.WriteHeader(http.StatusInternalServerError)
fmt.Fprint(rw, jsonError("error building response"))
return
}
fmt.Fprint(rw, string(jsonTask))
}
func (c *Context) Clean(rw web.ResponseWriter, req *web.Request) {
var msg string
defer c.WriteResponse(msg)
var stackDir string
localComps := engine.LocalComponents()
for _, comp := range localComps {
cmd := exec.Command(comp.DeployFilepath, "stop")
output, err := cmd.CombinedOutput()
if err != nil {
rw.WriteHeader(http.StatusInternalServerError)
msg = fmt.Sprintf("Failed to run command: %s ,error: %v", comp.DeployFilepath+" stop", err)
return
}
log.Debug(output)
if stackDir == "" {
stackDir = filepath.Dir(comp.Directory)
} else if stackDir != filepath.Dir(comp.Directory) {
rw.WriteHeader(http.StatusInternalServerError)
msg = "stack directory is different."
return
}
}
if stackDir != "" {
err := os.RemoveAll(stackDir)
if err != nil {
rw.WriteHeader(http.StatusInternalServerError)
msg = err.Error()
return
}
msg = "clean ok."
}
}
