mirror of
https://github.com/yunionio/cloudpods.git
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123 lines
2.5 KiB
Go
123 lines
2.5 KiB
Go
// Copyright 2019 Yunion
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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 stringutils2
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import (
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"crypto/md5"
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"encoding/hex"
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"fmt"
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"strings"
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)
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func GetMD5Hash(text string) string {
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hasher := md5.New()
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hasher.Write([]byte(text))
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return hex.EncodeToString(hasher.Sum(nil))
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}
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func EscapeString(str string, pairs [][]string) string {
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if len(pairs) == 0 {
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pairs = [][]string{
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{"\\", `\\`},
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{"\n", `\n`},
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{"\r", `\r`},
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{"\t", `\t`},
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{`"`, `\"`},
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{"'", `\'`},
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{"$", `\$`},
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}
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}
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for _, pair := range pairs {
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k, v := pair[0], pair[1]
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str = strings.Replace(str, k, v, -1)
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}
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return str
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}
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func EscapeEchoString(str string) (string, error) {
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pairs := [][]string{
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{"\\", `\\`},
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{"\n", `\n`},
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{"\r", `\r`},
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{"\t", `\t`},
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{`"`, `\"`},
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}
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innerPairs := [][]string{
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{"\\", `\\`},
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{"\n", `\n`},
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{"\r", `\r`},
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{"\t", `\t`},
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{`"`, `\"`},
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{"$", `\$`},
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}
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segs, err := SplitByQuotation(str)
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if err != nil {
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return "", err
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}
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ret := ""
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for idx := 0; idx < len(segs); idx++ {
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s := EscapeString(segs[idx], innerPairs)
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if idx%2 == 1 {
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s = EscapeString(segs[idx], pairs)
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s = `\"` + EscapeString(s, innerPairs) + `\"`
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}
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ret += s
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}
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return ret, nil
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}
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func findQuotationPos(line string, offset int) int {
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if offset > len(line) {
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return -1
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}
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subStr := line[offset:]
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pos := strings.Index(subStr, `"`)
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if pos < 0 {
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return pos
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}
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pos += offset
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if pos > 0 && line[pos-1] == '\\' {
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return findQuotationPos(line, pos+1)
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}
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return pos
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}
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func SplitByQuotation(line string) ([]string, error) {
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segs := []string{}
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offset := 0
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for offset < len(line) {
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pos := findQuotationPos(line, offset)
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if pos < 0 {
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segs = append(segs, line[offset:])
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offset = len(line)
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} else {
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if pos == offset {
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offset += 1
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} else {
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segs = append(segs, line[offset:pos])
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offset = pos + 1
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}
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pos = findQuotationPos(line, offset)
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if pos < 0 {
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return nil, fmt.Errorf("Unpaired quotations: %s", line[offset:])
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} else {
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segs = append(segs, line[offset:pos])
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offset = pos + 1
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}
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}
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}
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return segs, nil
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}
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