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Current etcdctlv3 doesn't handle options related to security when they are not passed. Connections cannot be established and etcd produces logs like this: ``` 14:09:07 etcd1 | 2016/02/04 14:09:07 transport: http2Server.HandleStreams received bogus greeting from client: "\x16\x03\x01\x00\x9a\x01\x00\x00\x96\x03\x03\xf6\t\xda\x06QV\xb4\xdd\xc1gF\x1cC" ``` This commit fixes the problem. In addition, a case that empty strings are passed to the options (e.g. --key="") are treated as error.
76 lines
2.1 KiB
Go
76 lines
2.1 KiB
Go
// Copyright 2015 CoreOS, Inc.
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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 command
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import (
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"errors"
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"time"
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"github.com/coreos/etcd/Godeps/_workspace/src/github.com/spf13/cobra"
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"github.com/coreos/etcd/clientv3"
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"github.com/coreos/etcd/pkg/transport"
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)
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// GlobalFlags are flags that defined globally
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// and are inherited to all sub-commands.
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type GlobalFlags struct {
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Endpoints string
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TLS transport.TLSInfo
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}
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func mustClient(cmd *cobra.Command) *clientv3.Client {
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endpoint, err := cmd.Flags().GetString("endpoint")
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if err != nil {
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ExitWithError(ExitError, err)
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}
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// set tls if any one tls option set
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var cfgtls *transport.TLSInfo
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tls := transport.TLSInfo{}
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var file string
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if file, err = cmd.Flags().GetString("cert"); err == nil && file != "" {
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tls.CertFile = file
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cfgtls = &tls
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} else if cmd.Flags().Changed("cert") {
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ExitWithError(ExitBadArgs, errors.New("empty string is passed to --cert option"))
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}
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if file, err = cmd.Flags().GetString("key"); err == nil && file != "" {
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tls.KeyFile = file
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cfgtls = &tls
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} else if cmd.Flags().Changed("key") {
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ExitWithError(ExitBadArgs, errors.New("empty string is passed to --key option"))
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}
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if file, err = cmd.Flags().GetString("cacert"); err == nil && file != "" {
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tls.CAFile = file
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cfgtls = &tls
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} else if cmd.Flags().Changed("cacert") {
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ExitWithError(ExitBadArgs, errors.New("empty string is passed to --cacert option"))
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}
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cfg := clientv3.Config{
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Endpoints: []string{endpoint},
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TLS: cfgtls,
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DialTimeout: 20 * time.Second,
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}
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client, err := clientv3.New(cfg)
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if err != nil {
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ExitWithError(ExitBadConnection, err)
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}
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return client
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}
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