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79 lines
2.4 KiB
Go
79 lines
2.4 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 appengine provides basic functionality for Google App Engine.
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//
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// For more information on how to write Go apps for Google App Engine, see:
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// https://cloud.google.com/appengine/docs/go/
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package appengine
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import (
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"net/http"
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"github.com/golang/protobuf/proto"
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"google.golang.org/appengine/internal"
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)
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// IsDevAppServer reports whether the App Engine app is running in the
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// development App Server.
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func IsDevAppServer() bool {
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// TODO(dsymonds): Detect this.
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return false
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}
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// Context represents the context of an in-flight HTTP request.
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type Context interface {
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// Debugf formats its arguments according to the format, analogous to fmt.Printf,
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// and records the text as a log message at Debug level.
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Debugf(format string, args ...interface{})
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// Infof is like Debugf, but at Info level.
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Infof(format string, args ...interface{})
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// Warningf is like Debugf, but at Warning level.
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Warningf(format string, args ...interface{})
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// Errorf is like Debugf, but at Error level.
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Errorf(format string, args ...interface{})
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// Criticalf is like Debugf, but at Critical level.
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Criticalf(format string, args ...interface{})
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// The remaining methods are for internal use only.
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// Developer-facing APIs wrap these methods to provide a more friendly API.
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// Internal use only.
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Call(service, method string, in, out proto.Message, opts *internal.CallOptions) error
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// Internal use only. Use AppID instead.
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FullyQualifiedAppID() string
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// Internal use only.
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Request() interface{}
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}
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// NewContext returns a context for an in-flight HTTP request.
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// Repeated calls will return the same value.
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func NewContext(req *http.Request) Context {
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return internal.NewContext(req)
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}
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// TODO(dsymonds): Add BackgroundContext function?
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// BlobKey is a key for a blobstore blob.
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//
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// Conceptually, this type belongs in the blobstore package, but it lives in
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// the appengine package to avoid a circular dependency: blobstore depends on
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// datastore, and datastore needs to refer to the BlobKey type.
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type BlobKey string
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// GeoPoint represents a location as latitude/longitude in degrees.
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type GeoPoint struct {
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Lat, Lng float64
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}
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// Valid returns whether a GeoPoint is within [-90, 90] latitude and [-180, 180] longitude.
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func (g GeoPoint) Valid() bool {
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return -90 <= g.Lat && g.Lat <= 90 && -180 <= g.Lng && g.Lng <= 180
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}
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