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86 lines
2.0 KiB
Go
86 lines
2.0 KiB
Go
// Copyright 2011 Google Inc. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package internal
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import (
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"net/http"
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"os"
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)
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// These functions are implementations of the wrapper functions
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// in ../appengine/identity.go. See that file for commentary.
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const (
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hDefaultVersionHostname = "X-AppEngine-Default-Version-Hostname"
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hRequestLogId = "X-AppEngine-Request-Log-Id"
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hDatacenter = "X-AppEngine-Datacenter"
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)
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func DefaultVersionHostname(req interface{}) string {
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return req.(*http.Request).Header.Get(hDefaultVersionHostname)
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}
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func RequestID(req interface{}) string {
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return req.(*http.Request).Header.Get(hRequestLogId)
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}
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func Datacenter(req interface{}) string {
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return req.(*http.Request).Header.Get(hDatacenter)
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}
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func ServerSoftware() string {
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// TODO(dsymonds): Remove fallback when we've verified this.
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if s := os.Getenv("SERVER_SOFTWARE"); s != "" {
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return s
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}
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return "Google App Engine/1.x.x"
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}
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// TODO(dsymonds): Remove the metadata fetches.
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func ModuleName() string {
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if s := os.Getenv("GAE_MODULE_NAME"); s != "" {
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return s
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}
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return string(mustGetMetadata("instance/attributes/gae_backend_name"))
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}
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func VersionID() string {
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if s := os.Getenv("GAE_MODULE_VERSION"); s != "" {
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return s
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}
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return string(mustGetMetadata("instance/attributes/gae_backend_version"))
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}
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func InstanceID() string {
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if s := os.Getenv("GAE_MODULE_INSTANCE"); s != "" {
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return s
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}
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return string(mustGetMetadata("instance/attributes/gae_backend_instance"))
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}
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func partitionlessAppID() string {
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// gae_project has everything except the partition prefix.
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appID := os.Getenv("GAE_LONG_APP_ID")
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if appID == "" {
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appID = string(mustGetMetadata("instance/attributes/gae_project"))
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}
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return appID
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}
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func fullyQualifiedAppID() string {
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appID := partitionlessAppID()
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part := os.Getenv("GAE_PARTITION")
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if part == "" {
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part = string(mustGetMetadata("instance/attributes/gae_partition"))
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}
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if part != "" {
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appID = part + "~" + appID
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}
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return appID
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}
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