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runner.go
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runner.go
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package main
import (
"fmt"
"io"
"io/ioutil"
"net/http"
"net/http/httptrace"
"net/url"
"strings"
"sync"
"sync/atomic"
"time"
)
type testCase struct {
RequestBodyList []requestBody `json:"requestBodyList"`
EnvVariables map[string]string `json:"envVariables"`
Repeat int `json:"repeat"`
ConcurrencyCount int `json:"concurrencyCount"`
QPS int `json:"qps"`
Timeout int `json:"timeout"`
KeepAlive bool `json:"keepAlive"`
results chan []runResult
forceStop int32
trace func(rst runResult)
}
type requestBody struct {
ID string `json:"id"`
Param string `json:"param"`
Method string `json:"method"`
URL string `json:"url"`
Body string `json:"body"`
Headers map[string]string `json:"headers"`
Tests string `json:"test"`
}
type runResult struct {
ID string `json:"id"`
Success bool `json:"success"`
Param string `json:"param"`
Err runError `json:"error"`
Body string `json:"body"`
Status int `json:"status"`
StatusMessage string `json:"statusMessage"`
Duration duration `json:"duration"`
Headers map[string]string `json:"headers"`
Tests map[string]bool `json:"tests"`
}
type duration struct {
DNS time.Duration `json:"dns"`
Connect time.Duration `json:"connect"`
Request time.Duration `json:"request"`
}
type runError struct {
Message string `json:"message"`
}
func (c *testCase) Run() {
c.results = make(chan []runResult, c.Repeat*c.ConcurrencyCount)
atomic.StoreInt32(&c.forceStop, 0)
c.start()
close(c.results)
}
func (c *testCase) start() {
var waiter sync.WaitGroup
waiter.Add(c.ConcurrencyCount)
for i := 0; i < c.ConcurrencyCount; i++ {
go func() {
c.work(c.Repeat)
waiter.Done()
}()
}
waiter.Wait()
}
func (c *testCase) work(times int) {
var throttle <-chan time.Time
if c.QPS > 0 {
throttle = time.Tick(time.Duration(1e6/(c.QPS)) * time.Microsecond)
}
transport := &http.Transport{
DisableKeepAlives: !c.KeepAlive,
}
httpClient := http.Client{Transport: transport, Timeout: time.Duration(c.Timeout) * time.Second}
for i := 0; i < times; i++ {
if c.QPS > 0 {
<-throttle
}
if atomic.CompareAndSwapInt32(&c.forceStop, 1, 1) {
break
}
c.doRequest(httpClient)
}
}
func (c *testCase) doRequest(httpClient http.Client) {
results := make([]runResult, len(c.RequestBodyList))
variables := make(map[string]string)
cookies := make(map[string]string)
for i, body := range c.RequestBodyList {
results[i] = doRequestItem(body, httpClient, c.EnvVariables, variables, cookies)
if c.trace != nil {
c.trace(results[i])
}
}
c.results <- results
}
func (c *testCase) stop() {
atomic.CompareAndSwapInt32(&c.forceStop, 0, 1)
}
func doRequestItem(body requestBody, httpClient http.Client, envVariables map[string]string, variables map[string]string, cookies map[string]string) (result runResult) {
var dnsStart, connectStart, reqStart time.Time
var duration duration
result = runResult{ID: body.ID, Param: body.Param, Success: false}
//now := time.Now()
req, err := buildRequest(body, cookies, envVariables, variables)
if err != nil {
fmt.Println(err)
result.Err = runError{err.Error()}
if req != nil {
req.Close = true
}
} else {
trace := &httptrace.ClientTrace{
DNSStart: func(info httptrace.DNSStartInfo) {
dnsStart = time.Now()
},
DNSDone: func(info httptrace.DNSDoneInfo) {
duration.DNS = time.Now().Sub(dnsStart)
},
GetConn: func(hostPort string) {
connectStart = time.Now()
},
GotConn: func(info httptrace.GotConnInfo) {
duration.Connect = time.Now().Sub(connectStart)
},
WroteRequest: func(info httptrace.WroteRequestInfo) {
reqStart = time.Now()
},
GotFirstResponseByte: func() {
duration.Request = time.Now().Sub(reqStart)
},
}
req = req.WithContext(httptrace.WithClientTrace(req.Context(), trace))
res, err := httpClient.Do(req)
if err == nil {
result.Duration = duration
result.Status = res.StatusCode
result.StatusMessage = parseStatusMsg(res.Status, res.StatusCode)
result.Headers = make(map[string]string)
for k, v := range res.Header {
hv := strings.Join(v, ";")
result.Headers[k] = hv
if strings.ToLower(k) == "cookie" {
for sk, sv := range readCookies(hv) {
cookies[sk] = sv
}
}
}
content, err := ioutil.ReadAll(res.Body)
if err != nil {
result.Err = runError{err.Error()}
} else {
result.Body = string(content)
}
testsStr := prepareTests(body.Tests, variables, envVariables)
testResult := interpret(Otto, testsStr, result)
result.Tests = make(map[string]bool)
for k, v := range testResult.Tests {
result.Tests[k] = v
}
for k, v := range testResult.Variables {
variables[k] = v
}
result.Success = true
defer res.Body.Close()
} else {
result.Err = runError{err.Error()}
}
}
return
}
func buildRequest(reqBody requestBody, cookies map[string]string, envVariables map[string]string, variables map[string]string) (*http.Request, error) {
var bodyReader io.Reader
if reqBody.Body != "" {
bodyReader = strings.NewReader(applyAllVariables(reqBody.Body, variables, envVariables))
}
req, err := http.NewRequest(reqBody.Method, encodeUrl(applyAllVariables(reqBody.URL, variables, envVariables)), bodyReader)
if err != nil {
return nil, err
}
headers := make(http.Header)
for k, v := range reqBody.Headers {
if strings.ToLower(k) == "cookie" {
v = applyCookies(v, cookies)
}
headers.Set(applyAllVariables(k, variables, envVariables), applyAllVariables(v, variables, envVariables))
}
req.Header = headers
return req, nil
}
func applyAllVariables(content string, variables map[string]string, envVariables map[string]string) string {
return applyVariables(applyVariables(content, variables), envVariables)
}
func applyVariables(content string, variables map[string]string) string {
if len(content) == 0 || len(variables) == 0 {
return content
}
for k, v := range variables {
content = strings.Replace(content, fmt.Sprintf("{{%s}}", k), v, -1)
}
return content
}
func applyCookies(value string, cookies map[string]string) string {
if len(cookies) == 0 || value == "nocookie" {
return value
}
recordCookies := readCookies(value)
for k, v := range cookies {
if _, ok := recordCookies[k]; !ok {
value = fmt.Sprintf("%s;%s", value, v)
}
}
return value
}
func readCookies(cookies string) map[string]string {
cookieMap := make(map[string]string)
cookieArr := strings.Split(cookies, ";")
for _, v := range cookieArr {
v = strings.Trim(v, " ")
i := strings.Index(v, "=")
if i < 0 {
i = len(v)
}
cookieMap[v[:i]] = v
}
return cookieMap
}
func prepareTests(tests string, variables map[string]string, envVariables map[string]string) string {
return applyAllVariables(tests, variables, envVariables)
}
func parseStatusMsg(status string, statusCode int) string {
statusCodeStr := string(statusCode)
if strings.HasPrefix(status, statusCodeStr) {
status = strings.Trim(strings.TrimPrefix(status, statusCodeStr), " ")
}
return status
}
func encodeUrl(u string) string {
var Url *url.URL
Url, err := url.Parse(u)
if err != nil {
return u
}
queryStrings := Url.Query()
Url.RawQuery = queryStrings.Encode()
return Url.String()
}