77 lines
1.5 KiB
Go
77 lines
1.5 KiB
Go
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// Copyright © 2016 Abcum Ltd
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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 cert
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import (
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"fmt"
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"os"
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"encoding/pem"
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)
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func Extract(enc, key, crt string) (err error) {
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var file *os.File
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data := []byte(enc)
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file, err = os.Create(key)
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if err != nil {
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return fmt.Errorf("Can not decode PEM encoded private key into %s", key)
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}
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file.Write(extractKey(data))
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file.Close()
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file, err = os.Create(crt)
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if err != nil {
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return fmt.Errorf("Can not decode PEM encoded certificate into %s", crt)
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}
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file.Write(extractCrt(data))
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file.Close()
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return
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}
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func extractKey(data []byte) (output []byte) {
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var block *pem.Block
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for len(data) > 0 {
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block, data = pem.Decode(data)
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if block.Type == "RSA PRIVATE KEY" {
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output = append(output, pem.EncodeToMemory(block)...)
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}
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}
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return
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}
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func extractCrt(data []byte) (output []byte) {
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var block *pem.Block
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for len(data) > 0 {
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block, data = pem.Decode(data)
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if block.Type == "CERTIFICATE" {
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output = append(output, pem.EncodeToMemory(block)...)
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}
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}
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return
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}
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