Rainbond/api/controller/app.go

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package controller
import (
"fmt"
"net/http"
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"io"
"os"
"strings"
"github.com/Sirupsen/logrus"
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"github.com/go-chi/chi"
"github.com/goodrain/rainbond/api/handler"
"github.com/goodrain/rainbond/api/model"
"github.com/goodrain/rainbond/db"
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httputil "github.com/goodrain/rainbond/util/http"
"io/ioutil"
"path/filepath"
)
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type AppStruct struct{}
func (a *AppStruct) ExportApp(w http.ResponseWriter, r *http.Request) {
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switch r.Method {
case "POST":
var tr model.ExportAppStruct
ok := httputil.ValidatorRequestStructAndErrorResponse(r, w, &tr.Body, nil)
if !ok {
return
}
if err := handler.GetAppHandler().Complete(&tr); err != nil {
return
}
// 要先更新数据库再通知builder组件
app := model.NewAppStatusFromExport(&tr)
db.GetManager().AppDao().DeleteModelByEventId(app.EventID)
if err := db.GetManager().AppDao().AddModel(app); err != nil {
httputil.ReturnError(r, w, 502, fmt.Sprintf("Failed to export app %s: %v", app.EventID, err))
return
}
err := handler.GetAppHandler().ExportApp(&tr)
if err != nil {
httputil.ReturnError(r, w, 501, fmt.Sprintf("Failed to export app: %v", err))
return
}
httputil.ReturnSuccess(r, w, nil)
case "GET":
eventId := strings.TrimSpace(chi.URLParam(r, "eventId"))
if eventId == "" {
httputil.ReturnError(r, w, 501, fmt.Sprintf("Arguments eventId is must defined."))
return
}
res, err := db.GetManager().AppDao().GetByEventId(eventId)
if err != nil {
httputil.ReturnError(r, w, 502, fmt.Sprintf("Failed to query status of export app by event id %s: %v", eventId, err))
return
}
httputil.ReturnSuccess(r, w, res)
}
}
func (a *AppStruct) Download(w http.ResponseWriter, r *http.Request) {
format := strings.TrimSpace(chi.URLParam(r, "format"))
fileName := strings.TrimSpace(chi.URLParam(r, "fileName"))
tarFile := fmt.Sprintf("%s/%s/%s", handler.GetAppHandler().GetStaticDir(), format, fileName)
// return status code 502 if the file not exists.
if _, err := os.Stat(tarFile); os.IsNotExist(err) {
httputil.ReturnError(r, w, 502, fmt.Sprintf("Not found export app tar file: %s", tarFile))
return
}
http.ServeFile(w, r, tarFile)
}
func (a *AppStruct) ImportID(w http.ResponseWriter, r *http.Request) {
eventId := strings.TrimSpace(chi.URLParam(r, "eventId"))
if eventId == "" {
httputil.ReturnError(r, w, 501, "Failed to parse eventId.")
return
}
dirName := fmt.Sprintf("%s/import/%s", handler.GetAppHandler().GetStaticDir(), eventId)
switch r.Method {
case "POST":
err := os.MkdirAll(dirName, 0755)
if err != nil {
httputil.ReturnError(r, w, 502, "Failed to create directory by event id: "+err.Error())
return
}
httputil.ReturnSuccess(r, w, map[string]string{"path": dirName})
case "GET":
_, err := os.Stat(dirName)
if err != nil {
if !os.IsExist(err) {
err := os.MkdirAll(dirName, 0755)
if err != nil {
httputil.ReturnError(r, w, 502, "Failed to create directory by event id: "+err.Error())
return
}
}
}
apps, err := ioutil.ReadDir(dirName)
if err != nil {
httputil.ReturnSuccess(r, w, map[string][]string{"apps": []string{}})
return
}
appArr := make([]string, 0, 10)
for _, dir := range apps {
if dir.IsDir() {
continue
}
ex := filepath.Ext(dir.Name())
if ex != ".zip" {
continue
}
appArr = append(appArr, dir.Name())
}
httputil.ReturnSuccess(r, w, map[string][]string{"apps": appArr})
case "DELETE":
err := os.RemoveAll(dirName)
if err != nil {
httputil.ReturnError(r, w, 502, "Failed to delete directory by id: "+eventId)
return
}
httputil.ReturnSuccess(r, w, "successful")
}
}
func (a *AppStruct) Upload(w http.ResponseWriter, r *http.Request) {
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eventId := strings.TrimSpace(chi.URLParam(r, "event_id"))
switch r.Method {
case "POST":
if eventId == "" {
httputil.ReturnError(r, w, 500, "Failed to parse eventId.")
return
}
logrus.Debug("Start receive upload file: ", eventId)
reader, header, err := r.FormFile("appTarFile")
if err != nil {
logrus.Errorf("Failed to parse upload file:", err.Error())
httputil.ReturnError(r, w, 501, "Failed to parse upload file.")
return
}
defer reader.Close()
dirName := fmt.Sprintf("%s/import/%s", handler.GetAppHandler().GetStaticDir(), eventId)
os.MkdirAll(dirName, 0755)
fileName := fmt.Sprintf("%s/%s", dirName, header.Filename)
file, err := os.OpenFile(fileName, os.O_WRONLY|os.O_CREATE, 0644)
if err != nil {
logrus.Errorf("Failed to open file: ", err.Error())
httputil.ReturnError(r, w, 502, "Failed to open file: "+err.Error())
}
defer file.Close()
logrus.Debug("Start write file to: ", fileName)
if _, err := io.Copy(file, reader); err != nil {
logrus.Errorf("Failed to write file", err.Error())
httputil.ReturnError(r, w, 503, "Failed to write file: "+err.Error())
}
logrus.Debug("successful write file to: ", fileName)
httputil.ReturnSuccess(r, w, "successful")
case "OPTIONS":
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origin := r.Header.Get("Origin")
w.Header().Add("Access-Control-Allow-Origin", origin)
w.Header().Add("Access-Control-Allow-Methods", "POST,OPTIONS")
w.Header().Add("Access-Control-Allow-Credentials", "true")
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w.Header().Add("Access-Control-Allow-Headers", "x-requested-with,Content-Type,X-Custom-Header")
httputil.ReturnSuccess(r, w, nil)
}
}
func (a *AppStruct) ImportApp(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case "POST":
var importApp = model.ImportAppStruct{
Format: "rainbond-app",
}
ok := httputil.ValidatorRequestStructAndErrorResponse(r, w, &importApp, nil)
if !ok {
return
}
// 获取tar包所在目录
importApp.SourceDir = fmt.Sprintf("%s/import/%s", handler.GetAppHandler().GetStaticDir(), importApp.EventID)
// 要先更新数据库再通知builder组件
app := model.NewAppStatusFromImport(&importApp)
db.GetManager().AppDao().DeleteModelByEventId(app.EventID)
if err := db.GetManager().AppDao().AddModel(app); err != nil {
httputil.ReturnError(r, w, 502, fmt.Sprintf("Failed to import app %s: %v", app.SourceDir, err))
return
}
err := handler.GetAppHandler().ImportApp(&importApp)
if err != nil {
httputil.ReturnError(r, w, 501, fmt.Sprintf("Failed to import app: %v", err))
return
}
httputil.ReturnSuccess(r, w, nil)
case "GET":
eventId := strings.TrimSpace(chi.URLParam(r, "eventId"))
if eventId == "" {
httputil.ReturnError(r, w, 501, fmt.Sprintf("Arguments eventId is must defined."))
return
}
res, err := db.GetManager().AppDao().GetByEventId(eventId)
if err != nil {
httputil.ReturnError(r, w, 502, fmt.Sprintf("Failed to query status of export app by event id %s: %v", eventId, err))
return
}
if res.Status == "success" {
metadatasFile := fmt.Sprintf("%s/metadatas.json", res.SourceDir)
data, err := ioutil.ReadFile(metadatasFile)
if err != nil {
httputil.ReturnError(r, w, 503, fmt.Sprintf("Can not read apps metadata from metadatas.json file: %v", err))
return
}
res.Metadata = string(data)
}
httputil.ReturnSuccess(r, w, res)
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case "DELETE":
eventId := strings.TrimSpace(chi.URLParam(r, "eventId"))
if eventId == "" {
httputil.ReturnError(r, w, 501, fmt.Sprintf("Arguments eventId is must defined."))
return
}
res, err := db.GetManager().AppDao().GetByEventId(eventId)
if err != nil {
httputil.ReturnError(r, w, 502, fmt.Sprintf("Failed to query status of export app by event id %s: %v", eventId, err))
return
}
if err := db.GetManager().AppDao().DeleteModelByEventId(res.EventID); err != nil {
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httputil.ReturnError(r, w, 503, fmt.Sprintf("Deleting database records by event ID failed %s: %v", eventId, err))
return
}
if _, err := os.Stat(res.SourceDir); err == nil {
if err := os.RemoveAll(res.SourceDir); err != nil {
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httputil.ReturnError(r, w, 504, fmt.Sprintf("Deleting uploading application directory failed %s : %v", res.SourceDir, err))
return
}
}
httputil.ReturnSuccess(r, w, "successfully deleted")
}
}