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55 lines
1.8 KiB
Go
55 lines
1.8 KiB
Go
// Copyright 2017 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package internal supports the options and transport packages.
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package internal
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import (
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"errors"
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"net/http"
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"golang.org/x/oauth2"
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"google.golang.org/grpc"
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)
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// DialSettings holds information needed to establish a connection with a
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// Google API service.
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type DialSettings struct {
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Endpoint string
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Scopes []string
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TokenSource oauth2.TokenSource
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CredentialsFile string // if set, Token Source is ignored.
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UserAgent string
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APIKey string
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HTTPClient *http.Client
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GRPCDialOpts []grpc.DialOption
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GRPCConn *grpc.ClientConn
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NoAuth bool
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}
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// Validate reports an error if ds is invalid.
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func (ds *DialSettings) Validate() error {
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hasCreds := ds.APIKey != "" || ds.TokenSource != nil || ds.CredentialsFile != ""
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if ds.NoAuth && hasCreds {
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return errors.New("options.WithoutAuthentication is incompatible with any option that provides credentials")
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}
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if ds.HTTPClient != nil && ds.GRPCConn != nil {
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return errors.New("WithHTTPClient is incompatible with WithGRPCConn")
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}
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if ds.HTTPClient != nil && ds.GRPCDialOpts != nil {
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return errors.New("WithHTTPClient is incompatible with gRPC dial options")
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}
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return nil
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}
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