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feature:append file content support base64 encoding #45

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merged 1 commit into from
Aug 20, 2020
Merged

feature:append file content support base64 encoding #45

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35 changes: 22 additions & 13 deletions exec/bin/file/appendfile/appendfile.go
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ package main

import (
"context"
"encoding/base64"
"flag"
"fmt"
"github.com/chaosblade-io/chaosblade-exec-os/exec/bin"
Expand All @@ -37,14 +38,15 @@ import (

var content, filepath string
var count, interval int
var escape, appendFileStart, appendFileStop, appendFileNoHup bool
var escape, enableBase64, appendFileStart, appendFileStop, appendFileNoHup bool

func main() {
flag.StringVar(&content, "content", "", "content")
flag.StringVar(&filepath, "filepath", "", "filepath")
flag.IntVar(&count, "count", 1, "append count")
flag.IntVar(&interval, "interval", 1, "append count")
flag.BoolVar(&escape, "escape", false, "symbols to escape")
flag.BoolVar(&enableBase64, "enable-base64", false, "append content enableBase64 encoding")
flag.BoolVar(&appendFileStart, "start", false, "start append file")
flag.BoolVar(&appendFileStop, "stop", false, "stop append file")
flag.BoolVar(&appendFileNoHup, "nohup", false, "nohup to run append file")
Expand All @@ -57,9 +59,9 @@ func main() {
if strings.Contains(content, "@@##") {
content = strings.Replace(content, "@@##", " ", -1)
}
startAppendFile(filepath, content, count, interval, escape)
startAppendFile(filepath, content, count, interval, escape, enableBase64)
} else if appendFileNoHup {
appendFile(filepath, content, count, interval, escape)
appendFile(filepath, content, count, interval, escape, enableBase64)
// Wait for signals
ch := make(chan os.Signal, 1)
signal.Notify(ch, os.Interrupt, syscall.SIGHUP, syscall.SIGTERM, syscall.SIGKILL)
Expand All @@ -83,7 +85,7 @@ func main() {
var cl = channel.NewLocalChannel()
var appendFileBin = "chaos_appendfile"

func startAppendFile(filepath, content string, count int, interval int, escape bool) {
func startAppendFile(filepath, content string, count int, interval int, escape bool, enableBase64 bool) {
// check pid
newCtx := context.WithValue(context.Background(), channel.ProcessKey,
fmt.Sprintf(`--nohup --filepath %s`, filepath))
Expand All @@ -99,8 +101,8 @@ func startAppendFile(filepath, content string, count int, interval int, escape b
}

ctx := context.Background()
args := fmt.Sprintf(`%s --nohup --filepath "%s" --content "%s" --count %d --interval %d --escape=%t`,
path.Join(util.GetProgramPath(), appendFileBin), filepath, content, count, interval, escape)
args := fmt.Sprintf(`%s --nohup --filepath "%s" --content "%s" --count %d --interval %d --escape=%t --enable-base64=%t`,
path.Join(util.GetProgramPath(), appendFileBin), filepath, content, count, interval, escape, enableBase64)
args = fmt.Sprintf(`%s > /dev/null 2>&1 &`, args)
response := cl.Run(ctx, "nohup", args)
if !response.Success {
Expand All @@ -123,19 +125,18 @@ func startAppendFile(filepath, content string, count int, interval int, escape b
}
}

func appendFile(filepath string, content string, count int, interval int, escape bool) {
func appendFile(filepath string, content string, count int, interval int, escape bool, enableBase64 bool) {

content = parseDate(content)
go func() {
ctx := context.Background()
// first append
if append(count, ctx, content, filepath, escape) {
if append(count, ctx, content, filepath, escape, enableBase64) {
return
}

ticker := time.NewTicker(time.Second * time.Duration(interval))
for _ = range ticker.C {
if append(count, ctx, content, filepath, escape) {
for range ticker.C {
if append(count, ctx, content, filepath, escape, enableBase64) {
return
}
}
Expand Down Expand Up @@ -182,9 +183,17 @@ func parseRandom(content string) string {
return content
}

func append(count int, ctx context.Context, content string, filepath string, escape bool) bool {
func append(count int, ctx context.Context, content string, filepath string, escape bool, enableBase64 bool) bool {
var response *spec.Response

if enableBase64 {
decodeBytes, err := base64.StdEncoding.DecodeString(content)
if err != nil {
bin.PrintErrAndExit(err.Error())
return true
}
content = string(decodeBytes)
}
content = parseDate(content)
for i := 0; i < count; i++ {
content = parseRandom(content)
if escape {
Expand Down
21 changes: 16 additions & 5 deletions exec/file_append.go
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,11 @@ func NewFileAppendActionSpec() spec.ExpActionCommandSpec {
Desc: "symbols to escape, use --escape, at this --count is invalid",
NoArgs: true,
},
&spec.ExpFlag{
Name: "enable-base64",
Desc: "append content enable base64 encoding",
NoArgs: true,
},
},
ActionExecutor: &FileAppendActionExecutor{},
},
Expand Down Expand Up @@ -110,7 +115,6 @@ func (f *FileAppendActionExecutor) Exec(uid string, ctx context.Context, model *
count := 1
// 1000 ms
interval := 1
var escape bool

content := model.ActionFlags["content"]
countStr := model.ActionFlags["count"]
Expand All @@ -130,18 +134,25 @@ func (f *FileAppendActionExecutor) Exec(uid string, ctx context.Context, model *
}
}

escape = model.ActionFlags["escape"] == "true"
escape := model.ActionFlags["escape"] == "true"
enableBase64 := model.ActionFlags["enable-base64"] == "true"

if !util.IsExist(filepath) {
return spec.ReturnFail(spec.Code[spec.IllegalParameters],
fmt.Sprintf("the %s file does not exist", filepath))
}

return f.start(filepath, content, count, interval, escape, ctx)
return f.start(filepath, content, count, interval, escape, enableBase64, ctx)
}

func (f *FileAppendActionExecutor) start(filepath string, content string, count int, interval int, escape bool, ctx context.Context) *spec.Response {
flags := fmt.Sprintf(`--start --filepath "%s" --content "%s" --count %d --interval %d --escape=%t --debug=%t`, filepath, content, count, interval, escape, util.Debug)
func (f *FileAppendActionExecutor) start(filepath string, content string, count int, interval int, escape bool, enableBase64 bool, ctx context.Context) *spec.Response {
flags := fmt.Sprintf(`--start --filepath "%s" --content "%s" --count %d --interval %d --debug=%t`, filepath, content, count, interval, util.Debug)
if escape {
flags = fmt.Sprintf("%s --escape=true", flags)
}
if enableBase64 {
flags = fmt.Sprintf("%s --enable-base64=true", flags)
}
return f.channel.Run(ctx, path.Join(f.channel.GetScriptPath(), appeneFileBin), flags)
}

Expand Down