50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
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// Copyright 2016 The etcd Authors
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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 transport
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import (
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"fmt"
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"strings"
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"time"
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)
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// ValidateSecureEndpoints scans the given endpoints against tls info, returning only those
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// endpoints that could be validated as secure.
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func ValidateSecureEndpoints(tlsInfo TLSInfo, eps []string) ([]string, error) {
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t, err := NewTransport(tlsInfo, 5*time.Second)
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if err != nil {
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return nil, err
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}
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var errs []string
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var endpoints []string
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for _, ep := range eps {
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if !strings.HasPrefix(ep, "https://") {
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errs = append(errs, fmt.Sprintf("%q is insecure", ep))
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continue
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}
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conn, cerr := t.Dial("tcp", ep[len("https://"):])
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if cerr != nil {
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errs = append(errs, fmt.Sprintf("%q failed to dial (%v)", ep, cerr))
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continue
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}
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conn.Close()
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endpoints = append(endpoints, ep)
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}
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if len(errs) != 0 {
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err = fmt.Errorf("%s", strings.Join(errs, ","))
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}
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return endpoints, err
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}
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