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util_process.go
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util_process.go
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// Copyright 2023 The casbin Authors. All Rights Reserved.
//
// 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 run
import (
"fmt"
"os/exec"
"regexp"
"strings"
"github.com/casbin/caswaf/util"
)
var reBatNames *regexp.Regexp
func init() {
reBatNames = regexp.MustCompile(`\\Desktop\\run\\(.*?)\.bat`)
}
func parseBatName(s string) string {
res := reBatNames.FindStringSubmatch(s)
if res == nil {
return ""
}
return res[1]
}
func getBatNamesFromOutput(output string) map[string]int {
batNameMap := map[string]int{}
output = strings.ReplaceAll(output, "\r", "")
lines := strings.Split(output, "\n")
for _, line := range lines {
tokens := strings.Split(line, " ")
tokens2 := []string{}
for _, token := range tokens {
if token != "" {
tokens2 = append(tokens2, token)
}
}
if len(tokens2) < 5 || strings.ToLower(tokens2[0]) != `c:\windows\system32\cmd.exe` || tokens2[1] != "/c" {
continue
}
batName := parseBatName(tokens2[2])
processId := util.ParseInt(tokens2[len(tokens2)-1])
batNameMap[batName] = processId
//fmt.Printf("%s, %d\n", batName, processId)
}
return batNameMap
}
func getPid(name string) (int, error) {
name = getMappedName(name)
// wmic process where (name="cmd.exe") get CommandLine, ProcessID
cmd := exec.Command("wmic", "process", "where", "name='cmd.exe'", "get", "CommandLine,ProcessID")
out, err := cmd.CombinedOutput()
if err != nil {
return 0, err
}
batNameMap := getBatNamesFromOutput(string(out))
pid, ok := batNameMap[name]
if ok {
return pid, nil
} else {
return 0, fmt.Errorf("getBatNamesFromOutput() error, name = %s, batNameMap = %v", name, batNameMap)
}
}