1 files changed, 81 insertions, 0 deletions

diff --git a/vendor/google.golang.org/api/internal/settings.go b/vendor/google.golang.org/api/internal/settings.go
new file mode 100644
index 0000000..afabdc4
--- /dev/null
+++ b/vendor/google.golang.org/api/internal/settings.go
@@ -0,0 +1,81 @@
+// Copyright 2017 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package internal supports the options and transport packages.
+package internal
+
+import (
+        "errors"
+        "net/http"
+
+        "golang.org/x/oauth2"
+        "golang.org/x/oauth2/google"
+        "google.golang.org/grpc"
+)
+
+// DialSettings holds information needed to establish a connection with a
+// Google API service.
+type DialSettings struct {
+        Endpoint        string
+        Scopes          []string
+        TokenSource     oauth2.TokenSource
+        Credentials     *google.DefaultCredentials
+        CredentialsFile string // if set, Token Source is ignored.
+        CredentialsJSON []byte
+        UserAgent       string
+        APIKey          string
+        HTTPClient      *http.Client
+        GRPCDialOpts    []grpc.DialOption
+        GRPCConn        *grpc.ClientConn
+        NoAuth          bool
+}
+
+// Validate reports an error if ds is invalid.
+func (ds *DialSettings) Validate() error {
+        hasCreds := ds.APIKey != "" || ds.TokenSource != nil || ds.CredentialsFile != "" || ds.Credentials != nil
+        if ds.NoAuth && hasCreds {
+                return errors.New("options.WithoutAuthentication is incompatible with any option that provides credentials")
+        }
+        // Credentials should not appear with other options.
+        // We currently allow TokenSource and CredentialsFile to coexist.
+        // TODO(jba): make TokenSource & CredentialsFile an error (breaking change).
+        nCreds := 0
+        if ds.Credentials != nil {
+                nCreds++
+        }
+        if ds.CredentialsJSON != nil {
+                nCreds++
+        }
+        if ds.CredentialsFile != "" {
+                nCreds++
+        }
+        if ds.APIKey != "" {
+                nCreds++
+        }
+        if ds.TokenSource != nil {
+                nCreds++
+        }
+        // Accept only one form of credentials, except we allow TokenSource and CredentialsFile for backwards compatibility.
+        if nCreds > 1 && !(nCreds == 2 && ds.TokenSource != nil && ds.CredentialsFile != "") {
+                return errors.New("multiple credential options provided")
+        }
+        if ds.HTTPClient != nil && ds.GRPCConn != nil {
+                return errors.New("WithHTTPClient is incompatible with WithGRPCConn")
+        }
+        if ds.HTTPClient != nil && ds.GRPCDialOpts != nil {
+                return errors.New("WithHTTPClient is incompatible with gRPC dial options")
+        }
+
+        return nil
+}