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update.go
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update.go
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package handlers
import (
"io"
"io/ioutil"
"net/http"
"os"
"path/filepath"
"strconv"
"strings"
"github.com/gorilla/mux"
"github.com/pkg/errors"
"github.com/replicatedhq/kots/pkg/airgap"
"github.com/replicatedhq/kots/pkg/logger"
"github.com/replicatedhq/kots/pkg/store"
"github.com/replicatedhq/kots/pkg/updatechecker"
"github.com/replicatedhq/kots/pkg/util"
)
type AppUpdateCheckRequest struct {
}
type AppUpdateCheckResponse struct {
AvailableUpdates int64 `json:"availableUpdates"`
CurrentAppSequence int64 `json:"currentAppSequence"`
CurrentRelease AppUpdateRelease `json:"currentRelease"`
AvailableReleases []AppUpdateRelease `json:"availableReleases"`
DeployingRelease AppUpdateRelease `json:"deployingRelease"`
}
type AppUpdateRelease struct {
Sequence int64 `json:"sequence"`
Version string `json:"version"`
}
func (h *Handler) AppUpdateCheck(w http.ResponseWriter, r *http.Request) {
appSlug := mux.Vars(r)["appSlug"]
foundApp, err := store.GetStore().GetAppFromSlug(appSlug)
if err != nil {
logger.Error(errors.Wrapf(err, "failed to get app for slug %q", appSlug))
w.WriteHeader(http.StatusNotFound)
return
}
deploy, _ := strconv.ParseBool(r.URL.Query().Get("deploy"))
deployVersionLabel := r.URL.Query().Get("deployVersionLabel")
skipPreflights, _ := strconv.ParseBool(r.URL.Query().Get("skipPreflights"))
isCLI, _ := strconv.ParseBool(r.URL.Query().Get("isCLI"))
contentType := strings.Split(r.Header.Get("Content-Type"), ";")[0]
contentType = strings.TrimSpace(contentType)
if contentType == "application/json" {
opts := updatechecker.CheckForUpdatesOpts{
AppID: foundApp.ID,
DeployLatest: deploy,
DeployVersionLabel: deployVersionLabel,
SkipPreflights: skipPreflights,
IsCLI: isCLI,
}
ucr, err := updatechecker.CheckForUpdates(opts)
if err != nil {
logger.Error(errors.Wrap(err, "failed to check for updates"))
w.WriteHeader(http.StatusInternalServerError)
cause := errors.Cause(err)
if _, ok := cause.(util.ActionableError); ok {
w.Write([]byte(cause.Error()))
}
return
}
// refresh the app to get the correct sequence
a, err := store.GetStore().GetApp(foundApp.ID)
if err != nil {
logger.Error(errors.Wrap(err, "failed to get app"))
w.WriteHeader(http.StatusNotFound)
return
}
var appUpdateCheckResponse AppUpdateCheckResponse
if ucr != nil {
var availableReleases []AppUpdateRelease
for _, r := range ucr.AvailableReleases {
availableReleases = append(availableReleases, AppUpdateRelease{
Sequence: r.Sequence,
Version: r.Version,
})
}
appUpdateCheckResponse = AppUpdateCheckResponse{
AvailableUpdates: ucr.AvailableUpdates,
CurrentAppSequence: a.CurrentSequence,
CurrentRelease: AppUpdateRelease{
Sequence: ucr.CurrentRelease.Sequence,
Version: ucr.CurrentRelease.Version,
},
AvailableReleases: availableReleases,
DeployingRelease: AppUpdateRelease{
Sequence: ucr.DeployingRelease.Sequence,
Version: ucr.DeployingRelease.Version,
},
}
}
JSON(w, http.StatusOK, appUpdateCheckResponse)
return
}
if contentType == "multipart/form-data" {
if !foundApp.IsAirgap {
logger.Error(errors.New("not an airgap app"))
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte("Cannot update an online install using an airgap bundle"))
return
}
rootDir, err := ioutil.TempDir("", "kotsadm-airgap")
if err != nil {
logger.Error(errors.Wrap(err, "failed to create temp dir"))
w.WriteHeader(http.StatusInternalServerError)
return
}
defer os.RemoveAll(rootDir)
formReader, err := r.MultipartReader()
if err != nil {
logger.Error(errors.Wrap(err, "failed to get multipart reader"))
w.WriteHeader(http.StatusInternalServerError)
return
}
for {
part, err := formReader.NextPart()
if err != nil {
if err == io.EOF {
break
}
logger.Error(errors.Wrap(err, "failed to get next part"))
w.WriteHeader(http.StatusInternalServerError)
return
}
fileName := filepath.Join(rootDir, part.FormName())
file, err := os.Create(fileName)
if err != nil {
logger.Error(errors.Wrap(err, "failed to create file"))
w.WriteHeader(http.StatusInternalServerError)
return
}
defer file.Close()
_, err = io.Copy(file, part)
if err != nil {
logger.Error(errors.Wrap(err, "failed to copy part data"))
w.WriteHeader(http.StatusInternalServerError)
return
}
file.Close()
}
finishedChan := make(chan error)
defer close(finishedChan)
airgap.StartUpdateTaskMonitor(finishedChan)
err = airgap.UpdateAppFromPath(foundApp, rootDir, "", deploy, skipPreflights)
if err != nil {
finishedChan <- err
logger.Error(errors.Wrap(err, "failed to upgrade app"))
w.WriteHeader(http.StatusInternalServerError)
cause := errors.Cause(err)
if _, ok := cause.(util.ActionableError); ok {
w.Write([]byte(cause.Error()))
}
return
}
JSON(w, http.StatusOK, struct{}{})
return
}
logger.Error(errors.Errorf("unsupported content type: %s", r.Header.Get("Content-Type")))
w.WriteHeader(http.StatusBadRequest)
}