// GetApiConfigs creates APIDescriptor for every registered RPCService and
// responds with a config suitable for generating Discovery doc.
//
// Responds with a list of active APIs and their configuration files.
func (s *BackendService) GetApiConfigs(
r *http.Request, req *GetAPIConfigsRequest, resp *APIConfigsList) error {
c := appengine.NewContext(r)
if req.AppRevision != "" {
revision := strings.Split(appengine.VersionID(c), ".")[1]
if req.AppRevision != revision {
err := fmt.Errorf(
"API backend app revision %s not the same as expected %s",
revision, req.AppRevision)
log.Errorf(c, "%s", err)
return err
}
}
resp.Items = make([]string, 0)
for _, service := range s.server.services.services {
if service.internal {
continue
}
d := &APIDescriptor{}
if err := service.APIDescriptor(d, r.Host); err != nil {
log.Errorf(c, "%s", err)
return err
}
bytes, err := json.Marshal(d)
if err != nil {
log.Errorf(c, "%s", err)
return err
}
resp.Items = append(resp.Items, string(bytes))
}
return nil
}
// handler is the main demo entry point that calls the GCS operations.
func handler(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
c := appengine.NewContext(r)
if bucket == "" {
var err error
if bucket, err = file.DefaultBucketName(c); err != nil {
log.Errorf(c, "failed to get default GCS bucket name: %v", err)
return
}
}
hc := &http.Client{
Transport: &oauth2.Transport{
Source: google.AppEngineTokenSource(c, storage.ScopeFullControl),
// Note that the App Engine urlfetch service has a limit of 10MB uploads and
// 32MB downloads.
// See https://cloud.google.com/appengine/docs/go/urlfetch/#Go_Quotas_and_limits
// for more information.
Base: &urlfetch.Transport{Context: c},
},
}
ctx := cloud.NewContext(appengine.AppID(c), hc)
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
fmt.Fprintf(w, "Demo GCS Application running from Version: %v\n", appengine.VersionID(c))
fmt.Fprintf(w, "Using bucket name: %v\n\n", bucket)
d := &demo{
c: c,
w: w,
ctx: ctx,
}
n := "demo-testfile-go"
d.createFile(n)
d.readFile(n)
d.copyFile(n)
d.statFile(n)
d.createListFiles()
d.listBucket()
d.listBucketDirMode()
d.defaultACL()
d.putDefaultACLRule()
d.deleteDefaultACLRule()
d.bucketACL()
d.putBucketACLRule()
d.deleteBucketACLRule()
d.acl(n)
d.putACLRule(n)
d.deleteACLRule(n)
d.deleteFiles()
if d.failed {
io.WriteString(w, "\nDemo failed.\n")
} else {
io.WriteString(w, "\nDemo succeeded.\n")
}
}
// Run starts a query for log records, which contain request and application
// level log information.
func (params *Query) Run(c appengine.Context) *Result {
req, err := makeRequest(params, c.FullyQualifiedAppID(), appengine.VersionID(c))
return &Result{
context: c,
request: req,
err: err,
}
}
func handler(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
ctx := appengine.NewContext(r)
if bucket == "" {
var err error
if bucket, err = file.DefaultBucketName(ctx); err != nil {
log.Errorf(ctx, "error", err)
return
}
}
client, err := storage.NewClient(ctx)
if err != nil {
log.Errorf(ctx, "error", err)
return
}
defer client.Close()
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
fmt.Fprintf(w, "Demo GCS Application running from Version: %v\n", appengine.VersionID(ctx))
fmt.Fprintf(w, "Using bucket name: %v\n\n", bucket)
d := &demo{
w: w,
ctx: ctx,
client: client,
bucket: client.Bucket(bucket),
}
n := "demo-testfile-go"
d.makeF(n)
d.rFile(n)
d.cFile(n)
d.statFile(n)
d.createListFiles()
d.listBucket()
d.listBucketDirMode()
d.defaultACL()
d.putDefaultACLRule()
d.deleteDefaultACLRule()
d.bucketACL()
d.putBucketACLRule()
d.deleteBucketACLRule()
d.acl(n)
d.putACLRule(n)
d.deleteACLRule(n)
d.deleteFiles()
if d.failed {
io.WriteString(w, "\nDemo failed.\n")
} else {
io.WriteString(w, "\nDemo succeeded.\n")
}
}
func connectToDB(ctx context.Context) {
version := appengine.VersionID(ctx)
versionID := strings.Split(version, ".")
log.Infof(ctx, "Current serving app version: %s", versionID[0])
if versionID[0] == "live" {
DB_STRING = os.Getenv("LIVE_DB")
} else {
DB_STRING = os.Getenv("TEST_DB")
}
log.Infof(ctx, "connecting to DB with string %s", DB_STRING)
db = backend.SqlInit(DB_STRING)
}
// handler is the main demo entry point that calls the GCS operations.
func handler(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
c := appengine.NewContext(r)
bucketName, err := file.DefaultBucketName(c)
if err != nil {
c.Errorf("failed to get default GCS bucket name: %v", err)
return
}
config := google.NewAppEngineConfig(c, storage.ScopeFullControl)
ctx := cloud.NewContext(appengine.AppID(c), &http.Client{Transport: config.NewTransport()})
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
fmt.Fprintf(w, "Demo GCS Application running from Version: %v\n", appengine.VersionID(c))
fmt.Fprintf(w, "Using bucket name: %v\n\n", bucketName)
d := &demo{
c: c,
w: w,
ctx: ctx,
bucket: bucketName,
}
n := "demo-testfile-go"
d.createFile(n)
d.readFile(n)
d.copyFile(n)
d.statFile(n)
d.createListFiles()
d.listBucket()
d.listBucketDirMode()
d.defaultACL()
d.putDefaultACLRule()
d.deleteDefaultACLRule()
d.bucketACL()
d.putBucketACLRule()
d.deleteBucketACLRule()
d.acl(n)
d.putACLRule(n)
d.deleteACLRule(n)
d.deleteFiles()
if d.failed {
io.WriteString(w, "\nDemo failed.\n")
} else {
io.WriteString(w, "\nDemo succeeded.\n")
}
}
//Diagnostics shows a bunch of app engine's information for the app/project
//useful for figuring out which version of an app is serving
func Diagnostics(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
out := map[string]interface{}{
"App ID": appengine.AppID(c),
"Instance ID": appengine.InstanceID(),
"Default Version Hostname": appengine.DefaultVersionHostname(c),
"Version ID": appengine.VersionID(c),
"Datacenter": appengine.Datacenter(c),
"Module Name": appengine.ModuleName(c),
"Server Software": appengine.ServerSoftware(),
}
templates.Load(w, "diagnostics", out)
return
}
// Run starts a query for log records, which contain request and application
// level log information.
func (params *Query) Run(c appengine.Context) *Result {
req := &pb.LogReadRequest{}
appId := c.FullyQualifiedAppID()
req.AppId = &appId
if !params.StartTime.IsZero() {
req.StartTime = proto.Int64(params.StartTime.UnixNano() / 1e3)
}
if !params.EndTime.IsZero() {
req.EndTime = proto.Int64(params.EndTime.UnixNano() / 1e3)
}
if params.Offset != nil {
var offset pb.LogOffset
if err := proto.Unmarshal(params.Offset, &offset); err != nil {
return &Result{context: c, err: fmt.Errorf("bad Offset: %v", err)}
}
req.Offset = &offset
}
if params.Incomplete {
req.IncludeIncomplete = ¶ms.Incomplete
}
if params.AppLogs {
req.IncludeAppLogs = ¶ms.AppLogs
}
if params.ApplyMinLevel {
req.MinimumLogLevel = proto.Int32(int32(params.MinLevel))
}
if params.Versions == nil {
// If no versions were specified, default to the major version
// used by this app.
versionID := appengine.VersionID(c)
if i := strings.Index(versionID, "."); i >= 0 {
versionID = versionID[:i]
}
req.VersionId = []string{versionID}
} else {
req.VersionId = params.Versions
}
if params.RequestIDs != nil {
ids := make([][]byte, len(params.RequestIDs))
for i, v := range params.RequestIDs {
ids[i] = []byte(v)
}
req.RequestId = ids
}
return &Result{context: c, request: req}
}
// handleListBucket lists the contents of the default bucket
func handleListBucket(w http.ResponseWriter, r *http.Request) {
ctx := appengine.NewContext(r)
if bucket == "" {
var err error
if bucket, err = file.DefaultBucketName(ctx); err != nil {
log.Errorf(ctx, "failed to get default GCS bucket name: %v", err)
return
}
}
client, err := storage.NewClient(ctx)
if err != nil {
log.Errorf(ctx, "failed to get default GCS bucket name: %v", err)
return
}
defer client.Close()
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
fmt.Fprintf(w, "Demo GCS Application running from Version: %v\n", appengine.VersionID(ctx))
fmt.Fprintf(w, "Using bucket name: %v\n\n", bucket)
writer := client.Bucket(bucket).Object("foo").NewWriter(ctx)
_, err = writer.Write([]byte("Yoho!"))
if err != nil {
log.Errorf(ctx, "Error while creating file")
}
log.Infof(ctx, "Created a new file. So yay!")
reader, err := client.Bucket(bucket).Object("foo").NewReader(ctx)
if err != nil {
log.Errorf(ctx, "Error creating reader for object from Bucket. %s", err)
}
content, err := ioutil.ReadAll(reader)
if err != nil {
log.Errorf(ctx, "Error reading object")
}
fmt.Fprintf(w, "Got: %s", &content)
}
func handler(res http.ResponseWriter, req *http.Request) {
if req.URL.Path != "/" {
http.NotFound(res, req)
return
}
//[START get_default_bucket]
ctx := appengine.NewContext(res)
if bucket == "" {
var err error
if bucket, err = file.DefaultBucketName(ctx); err != nil {
log.Errorf(ctx, "failed to get default GCS bucket name: %v", err)
return
}
}
//[END get_default_bucket]
//Make Client
client, err := storage.NewClient(ctx)
if err != nil {
log.Errorf(ctx, "failed to get default GCS bucket name: %v", err)
return
}
defer client.Close()
//Construct our object to interface with the cloud storage.
res.Header().Set("Content-Type", "text/plain; charset=utf-8")
fmt.Fprintf(res, "Demo GCS Application running from Version: %v\n", appengine.VersionID(ctx))
fmt.Fprintf(res, "Using bucket name: %v\n\n", bucket)
d := &demo{
w: res, //The response writer so it knows what to write to later if retrieving.
ctx: ctx, //Current Context
client: client, //Current Client
bucket: client.Bucket(bucket), //Relevant Bucket, bucket is a global string that contains the default bucket location.
}
//The name of the file we will be creating.
n := "demo-testfile-go"
//Create the File and store in google cloud.
d.createFile(n)
d.listBucket()
}
func handler(res http.ResponseWriter, req *http.Request) {
if req.URL.Path != "/" {
http.NotFound(res, req)
return
}
ctx := appengine.NewContext(res)
if bucket == "" {
var err error
if bucket, err = file.DefaultBucketName(ctx); err != nil {
log.Errorf(ctx, "failed to get default GCS bucket name: %v", err)
return
}
}
//[END get_default_bucket]
//Make Client
client, err := storage.NewClient(ctx)
if err != nil {
log.Errorf(ctx, "failed to get default GCS bucket name: %v", err)
return
}
defer client.Close()
res.Header().Set("Content-Type", "text/plain; charset=utf-8")
fmt.Fprintf(res, "Demo GCS Application running from Version: %v\n", appengine.VersionID(ctx))
fmt.Fprintf(res, "Using bucket name: %v\n\n", bucket)
d := &demo{
w: res,
ctx: ctx,
client: client,
bucket: client.Bucket(bucket),
}
n := "demo-testfile-go"
d.createFile(n)
d.listBucket()
}
func storeImage(rw http.ResponseWriter, req *http.Request) {
// Appengine
var c appengine.Context
// Google Cloud Storage authentication
var cc gcscontext.Context
// Google Cloud Storage bucket name
var bucketName string = ""
// Google Cloud Storage client
var client *storage.Client
// Google Cloud Storage bucket
var bucketHandle *storage.BucketHandle
// User uploaded image file name
var fileName string = uuid.New()
// Transform user uploaded image to a thumbnail file name
var fileNameThumbnail string = uuid.New()
// User uploaded image file type
var contentType string = ""
// User uploaded image file raw data
var b []byte
// Google Cloud Storage file writer
var wc *storage.Writer = nil
// Error
var err error = nil
// Result, 0: success, 1: failed
var r int = http.StatusCreated
// Set response in the end
defer func() {
// Return status. WriteHeader() must be called before call to Write
if r == http.StatusCreated {
// Changing the header after a call to WriteHeader (or Write) has no effect.
// rw.Header().Set("Location", req.URL.String()+"/"+cKey.Encode())
rw.Header().Set("Location", "http://"+bucketName+".storage.googleapis.com/"+fileName)
rw.Header().Set("X-Thumbnail", "http://"+bucketName+".storage.googleapis.com/"+fileNameThumbnail)
rw.WriteHeader(r)
} else {
http.Error(rw, http.StatusText(r), r)
}
}()
// To log information in Google APP Engine console
c = appengine.NewContext(req)
// Get data from body
b, err = ioutil.ReadAll(req.Body)
if err != nil {
c.Errorf("%s in reading body", err)
r = http.StatusInternalServerError
return
}
c.Infof("Body length %d bytes, read %d bytes", req.ContentLength, len(b))
// Determine filename extension from content type
contentType = req.Header["Content-Type"][0]
switch contentType {
case "image/jpeg":
fileName += ".jpg"
fileNameThumbnail += ".jpg"
default:
c.Errorf("Unknown or unsupported content type '%s'. Valid: image/jpeg", contentType)
r = http.StatusBadRequest
return
}
c.Infof("Content type %s is received, %s is detected.", contentType, http.DetectContentType(b))
// Prepare Google Cloud Storage authentication
cc = gcsappengine.NewContext(req)
if client, err = storage.NewClient(cc); err != nil {
c.Errorf("%s in initializing a GCS client", err)
r = http.StatusInternalServerError
return
}
defer client.Close()
// Get default bucket
if bucketName, err = gcsfile.DefaultBucketName(cc); err != nil {
c.Errorf("%s in getting default GCS bucket name", err)
r = http.StatusInternalServerError
return
}
bucketHandle = client.Bucket(bucketName)
c.Infof("APP Engine Version: %s", gcsappengine.VersionID(cc))
c.Infof("Using bucket name: %s", bucketName)
// Change default object ACLs
if err = bucketHandle.DefaultObjectACL().Set(cc, storage.AllUsers, storage.RoleReader); err != nil {
c.Errorf("%v in saving default object ACL rule for bucket %q", err, bucketName)
r = http.StatusInternalServerError
return
}
// Store rotated image in Google Cloud Storage
var in *bytes.Reader = bytes.NewReader(b)
var x *exif.Exif = nil
var orientation *tiff.Tag = nil
var beforeImage image.Image
var afterImage *image.NRGBA = nil
// Read EXIF
if _, err = in.Seek(0, 0); err != nil {
c.Errorf("%s in moving the reader offset to the beginning in order to read EXIF", err)
return
}
if x, err = exif.Decode(in); err != nil {
c.Errorf("%s in decoding JPEG image", err)
return
}
// Get Orientation
if orientation, err = x.Get(exif.Orientation); err != nil {
c.Warningf("%s in getting orientation from EXIF", err)
return
}
c.Debugf("Orientation %s", orientation.String())
// Open image
if _, err = in.Seek(0, 0); err != nil {
c.Errorf("%s in moving the reader offset to the beginning in order to read EXIF", err)
return
}
if beforeImage, err = imaging.Decode(in); err != nil {
c.Errorf("%s in opening image %s", err)
return
}
switch orientation.String() {
case "1":
afterImage = beforeImage.(*image.NRGBA)
case "2":
afterImage = imaging.FlipH(beforeImage)
case "3":
afterImage = imaging.Rotate180(beforeImage)
case "4":
afterImage = imaging.FlipV(beforeImage)
case "5":
afterImage = imaging.Transverse(beforeImage)
case "6":
afterImage = imaging.Rotate270(beforeImage)
case "7":
afterImage = imaging.Transpose(beforeImage)
case "8":
afterImage = imaging.Rotate90(beforeImage)
}
// Save rotated image
wc = bucketHandle.Object(fileName).NewWriter(cc)
wc.ContentType = contentType
if err = imaging.Encode(wc, afterImage, imaging.JPEG); err != nil {
c.Errorf("%s in saving rotated image", err)
return
}
if err = wc.Close(); err != nil {
c.Errorf("CreateFile: unable to close bucket %q, file %q: %v", bucketName, fileName, err)
r = 1
return
}
wc = nil
// Make thumbnail
if afterImage.Rect.Dx() > afterImage.Rect.Dy() {
afterImage = imaging.Resize(afterImage, 1920, 0, imaging.Lanczos)
} else {
afterImage = imaging.Resize(afterImage, 0, 1920, imaging.Lanczos)
}
// Save thumbnail
wc = bucketHandle.Object(fileNameThumbnail).NewWriter(cc)
wc.ContentType = contentType
if imaging.Encode(wc, afterImage, imaging.JPEG); err != nil {
c.Errorf("%s in saving image thumbnail", err)
return
}
if err = wc.Close(); err != nil {
c.Errorf("CreateFileThumbnail: unable to close bucket %q, file %q: %v", bucketName, fileNameThumbnail, err)
r = 1
return
}
c.Infof("/%v/%v, /%v/%v created", bucketName, fileName, bucketName, fileNameThumbnail)
}
func storeImage(rw http.ResponseWriter, req *http.Request) {
// Appengine
var c appengine.Context
// Google Cloud Storage authentication
var cc gcscontext.Context
// Google Cloud Storage bucket name
var bucket string = ""
// User uploaded image file name
var fileName string = uuid.New()
// User uploaded image file type
var contentType string = ""
// User uploaded image file raw data
var b []byte
// Result, 0: success, 1: failed
var r int = 0
// Set response in the end
defer func() {
// Return status. WriteHeader() must be called before call to Write
if r == 0 {
// Changing the header after a call to WriteHeader (or Write) has no effect.
// rw.Header().Set("Location", req.URL.String()+"/"+cKey.Encode())
rw.Header().Set("Location", "http://"+bucket+".storage.googleapis.com/"+fileName)
rw.WriteHeader(http.StatusCreated)
} else {
http.Error(rw, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
}
}()
// To log information in Google APP Engine console
c = appengine.NewContext(req)
// Get data from body
b, err := ioutil.ReadAll(req.Body)
if err != nil {
c.Errorf("%s in reading body", err)
r = 1
return
}
c.Infof("Body length %d bytes, read %d bytes", req.ContentLength, len(b))
// Determine filename extension from content type
contentType = req.Header["Content-Type"][0]
switch contentType {
case "image/jpeg":
fileName += ".jpg"
default:
c.Errorf("Unknown or unsupported content type '%s'. Valid: image/jpeg", contentType)
r = 1
return
}
c.Infof("Content type %s is received, %s is detected.", contentType, http.DetectContentType(b))
// Get default bucket name
cc = gcsappengine.NewContext(req)
if bucket, err = gcsfile.DefaultBucketName(cc); err != nil {
c.Errorf("%s in getting default GCS bucket name", err)
r = 1
return
}
c.Infof("APP Engine Version: %s", gcsappengine.VersionID(cc))
c.Infof("Using bucket name: %s", bucket)
// Prepare Google Cloud Storage authentication
hc := &http.Client{
Transport: &oauth2.Transport{
Source: google.AppEngineTokenSource(cc, storage.ScopeFullControl),
// Note that the App Engine urlfetch service has a limit of 10MB uploads and
// 32MB downloads.
// See https://cloud.google.com/appengine/docs/go/urlfetch/#Go_Quotas_and_limits
// for more information.
Base: &gcsurlfetch.Transport{Context: cc},
},
}
ctx := cloud.NewContext(gcsappengine.AppID(cc), hc)
// Change default object ACLs
err = storage.PutDefaultACLRule(ctx, bucket, "allUsers", storage.RoleReader)
// err = storage.PutACLRule(ctx, bucket, fileName, "allUsers", storage.RoleReader)
if err != nil {
c.Errorf("%v in saving ACL rule for bucket %q", err, bucket)
return
}
// Store file in Google Cloud Storage
wc := storage.NewWriter(ctx, bucket, fileName)
wc.ContentType = contentType
// wc.Metadata = map[string]string{
// "x-goog-meta-foo": "foo",
// "x-goog-meta-bar": "bar",
// }
if _, err := wc.Write(b); err != nil {
c.Errorf("CreateFile: unable to write data to bucket %q, file %q: %v", bucket, fileName, err)
r = 1
return
}
if err := wc.Close(); err != nil {
c.Errorf("CreateFile: unable to close bucket %q, file %q: %v", bucket, fileName, err)
r = 1
return
}
c.Infof("/%v/%v\n created", bucket, fileName)
}
// Todo: When c==nil we are in a non-appengine environment.
// We still want to return at least ii.PureHostname
func GetByContext(c context.Context) *Instance {
tstart := time.Now()
if !ii.LastUpdated.IsZero() {
age := tstart.Sub(ii.LastUpdated)
if age < 200*time.Millisecond {
aelog.Infof(c, "instance info update too recently: %v, skipping.\n", age)
return ii
}
if age < 1*time.Hour {
if len(ii.Hostname) > 2 {
return ii
}
}
aelog.Infof(c, "instance info update too old: %v, recomputing.\n", age)
}
ii.ModuleName = appengine.ModuleName(c)
ii.InstanceID = appengine.InstanceID()
ii.VersionFull = appengine.VersionID(c)
majorMinor := strings.Split(ii.VersionFull, ".")
if len(majorMinor) != 2 {
panic("we need a version string of format X.Y")
}
ii.VersionMajor = majorMinor[0]
ii.VersionMinor = majorMinor[1]
var err = errors.New("dummy creation error message")
ii.NumInstances, err = module.NumInstances(c, ii.ModuleName, ii.VersionFull)
if err != nil {
// this never works with version full
// we do not log this - but try version major
err = nil
if !util_appengine.IsLocalEnviron() {
ii.NumInstances, err = module.NumInstances(c, ii.ModuleName, ii.VersionMajor)
if err != nil {
eStr := err.Error()
eCmp1, eCmp2, eCmp3 := "API error", "INVALID_VERSION)", "Could not find the given version"
if strings.Contains(eStr, eCmp1) && strings.Contains(eStr, eCmp2) && strings.Contains(eStr, eCmp3) {
aelog.Infof(c, "get num instances works only live and without autoscale; %v", err)
} else {
aelog.Errorf(c, "get num instances error; %v", err)
}
}
}
}
// in auto scaling, google reports "zero" - which can not be true
// we assume at least 1
if ii.NumInstances == 0 {
ii.NumInstances = 1
}
// http://[0-2].1.default.libertarian-islands.appspot.com/instance-info
ii.Hostname, err = appengine.ModuleHostname(c, ii.ModuleName, ii.VersionMajor, "")
if err != nil {
aelog.Errorf(c, "ModuleHostname1: %v", err)
}
ii.PureHostname = appengine.DefaultVersionHostname(c)
if !appengine.IsDevAppServer() {
ii.HostnameInst0, err = appengine.ModuleHostname(c, ii.ModuleName, ii.VersionMajor, "0")
if err != nil && (err.Error() == autoScalingErr1 || err.Error() == autoScalingErr2) {
aelog.Infof(c, "inst 0: "+autoScalingErrMsg)
err = nil
}
if err != nil {
aelog.Errorf(c, "ModuleHostname2: %v", err)
}
ii.HostnameInst1, err = appengine.ModuleHostname(c, ii.ModuleName, ii.VersionMajor, "1")
if err != nil && (err.Error() == autoScalingErr1 || err.Error() == autoScalingErr2) {
aelog.Infof(c, "inst 1: "+autoScalingErrMsg)
err = nil
}
if err != nil {
aelog.Errorf(c, "ModuleHostname3: %v", err)
}
ii.HostnameMod02, err = appengine.ModuleHostname(c, "mod02", "", "")
if err != nil {
aelog.Infof(c, "ModuleHostname4: %v", err)
}
}
ii.LastUpdated = time.Now()
aelog.Infof(c, "collectInfo() completed, %v - %v - %v - %v - %v, took %v",
stringspb.Ellipsoider(ii.InstanceID, 4), ii.VersionMajor, ii.ModuleName,
ii.Hostname, ii.PureHostname, time.Now().Sub(tstart))
return ii
}
// handler is the main demo entry point that calls the GCS operations.
func handler(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
//[START get_default_bucket]
ctx := appengine.NewContext(r)
if bucket == "" {
var err error
if bucket, err = file.DefaultBucketName(ctx); err != nil {
log.Errorf(ctx, "failed to get default GCS bucket name: %v", err)
return
}
}
//[END get_default_bucket]
client, err := storage.NewClient(ctx)
if err != nil {
log.Errorf(ctx, "failed to create client: %v", err)
return
}
defer client.Close()
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
fmt.Fprintf(w, "Demo GCS Application running from Version: %v\n", appengine.VersionID(ctx))
fmt.Fprintf(w, "Using bucket name: %v\n\n", bucket)
buf := &bytes.Buffer{}
d := &demo{
w: buf,
ctx: ctx,
client: client,
bucket: client.Bucket(bucket),
}
n := "demo-testfile-go"
d.createFile(n)
d.readFile(n)
d.copyFile(n)
d.statFile(n)
d.createListFiles()
d.listBucket()
d.listBucketDirMode()
d.defaultACL()
d.putDefaultACLRule()
d.deleteDefaultACLRule()
d.bucketACL()
d.putBucketACLRule()
d.deleteBucketACLRule()
d.acl(n)
d.putACLRule(n)
d.deleteACLRule(n)
d.deleteFiles()
if d.failed {
w.WriteHeader(http.StatusInternalServerError)
buf.WriteTo(w)
fmt.Fprintf(w, "\nDemo failed.\n")
} else {
w.WriteHeader(http.StatusOK)
buf.WriteTo(w)
fmt.Fprintf(w, "\nDemo succeeded.\n")
}
}
func (g giImpl) VersionID() string {
return appengine.VersionID(g.aeCtx)
}