mirror of
https://github.com/octoleo/restic.git
synced 2024-11-01 11:22:31 +00:00
135 lines
3.3 KiB
Go
135 lines
3.3 KiB
Go
// Copyright 2011 Google Inc. All rights reserved.
|
|
// Use of this source code is governed by the Apache 2.0
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// +build !appengine
|
|
|
|
package internal
|
|
|
|
import (
|
|
"log"
|
|
"net/http"
|
|
"os"
|
|
"strings"
|
|
|
|
netcontext "golang.org/x/net/context"
|
|
)
|
|
|
|
// These functions are implementations of the wrapper functions
|
|
// in ../appengine/identity.go. See that file for commentary.
|
|
|
|
const (
|
|
hDefaultVersionHostname = "X-AppEngine-Default-Version-Hostname"
|
|
hRequestLogId = "X-AppEngine-Request-Log-Id"
|
|
hDatacenter = "X-AppEngine-Datacenter"
|
|
)
|
|
|
|
func ctxHeaders(ctx netcontext.Context) http.Header {
|
|
c := fromContext(ctx)
|
|
if c == nil {
|
|
return nil
|
|
}
|
|
return c.Request().Header
|
|
}
|
|
|
|
func DefaultVersionHostname(ctx netcontext.Context) string {
|
|
return ctxHeaders(ctx).Get(hDefaultVersionHostname)
|
|
}
|
|
|
|
func RequestID(ctx netcontext.Context) string {
|
|
return ctxHeaders(ctx).Get(hRequestLogId)
|
|
}
|
|
|
|
func Datacenter(ctx netcontext.Context) string {
|
|
if dc := ctxHeaders(ctx).Get(hDatacenter); dc != "" {
|
|
return dc
|
|
}
|
|
// If the header isn't set, read zone from the metadata service.
|
|
// It has the format projects/[NUMERIC_PROJECT_ID]/zones/[ZONE]
|
|
zone, err := getMetadata("instance/zone")
|
|
if err != nil {
|
|
log.Printf("Datacenter: %v", err)
|
|
return ""
|
|
}
|
|
parts := strings.Split(string(zone), "/")
|
|
if len(parts) == 0 {
|
|
return ""
|
|
}
|
|
return parts[len(parts)-1]
|
|
}
|
|
|
|
func ServerSoftware() string {
|
|
// TODO(dsymonds): Remove fallback when we've verified this.
|
|
if s := os.Getenv("SERVER_SOFTWARE"); s != "" {
|
|
return s
|
|
}
|
|
if s := os.Getenv("GAE_ENV"); s != "" {
|
|
return s
|
|
}
|
|
return "Google App Engine/1.x.x"
|
|
}
|
|
|
|
// TODO(dsymonds): Remove the metadata fetches.
|
|
|
|
func ModuleName(_ netcontext.Context) string {
|
|
if s := os.Getenv("GAE_MODULE_NAME"); s != "" {
|
|
return s
|
|
}
|
|
if s := os.Getenv("GAE_SERVICE"); s != "" {
|
|
return s
|
|
}
|
|
return string(mustGetMetadata("instance/attributes/gae_backend_name"))
|
|
}
|
|
|
|
func VersionID(_ netcontext.Context) string {
|
|
if s1, s2 := os.Getenv("GAE_MODULE_VERSION"), os.Getenv("GAE_MINOR_VERSION"); s1 != "" && s2 != "" {
|
|
return s1 + "." + s2
|
|
}
|
|
if s1, s2 := os.Getenv("GAE_VERSION"), os.Getenv("GAE_DEPLOYMENT_ID"); s1 != "" && s2 != "" {
|
|
return s1 + "." + s2
|
|
}
|
|
return string(mustGetMetadata("instance/attributes/gae_backend_version")) + "." + string(mustGetMetadata("instance/attributes/gae_backend_minor_version"))
|
|
}
|
|
|
|
func InstanceID() string {
|
|
if s := os.Getenv("GAE_MODULE_INSTANCE"); s != "" {
|
|
return s
|
|
}
|
|
if s := os.Getenv("GAE_INSTANCE"); s != "" {
|
|
return s
|
|
}
|
|
return string(mustGetMetadata("instance/attributes/gae_backend_instance"))
|
|
}
|
|
|
|
func partitionlessAppID() string {
|
|
// gae_project has everything except the partition prefix.
|
|
if appID := os.Getenv("GAE_LONG_APP_ID"); appID != "" {
|
|
return appID
|
|
}
|
|
if project := os.Getenv("GOOGLE_CLOUD_PROJECT"); project != "" {
|
|
return project
|
|
}
|
|
return string(mustGetMetadata("instance/attributes/gae_project"))
|
|
}
|
|
|
|
func fullyQualifiedAppID(_ netcontext.Context) string {
|
|
if s := os.Getenv("GAE_APPLICATION"); s != "" {
|
|
return s
|
|
}
|
|
appID := partitionlessAppID()
|
|
|
|
part := os.Getenv("GAE_PARTITION")
|
|
if part == "" {
|
|
part = string(mustGetMetadata("instance/attributes/gae_partition"))
|
|
}
|
|
|
|
if part != "" {
|
|
appID = part + "~" + appID
|
|
}
|
|
return appID
|
|
}
|
|
|
|
func IsDevAppServer() bool {
|
|
return os.Getenv("RUN_WITH_DEVAPPSERVER") != ""
|
|
}
|