cmd/http-reflect-server/initialization;
parent
8748299a96
commit
4e1fe211cb
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module git.blauwelle.com/go/crate/cmd/http-reflect-server
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go 1.20
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require (
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git.blauwelle.com/go/crate/exegroup v0.3.0
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git.blauwelle.com/go/crate/log v0.4.0
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)
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require (
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git.blauwelle.com/go/crate/runtimehelper v0.1.0 // indirect
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git.blauwelle.com/go/crate/synchelper v0.1.0 // indirect
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)
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@ -0,0 +1,8 @@
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git.blauwelle.com/go/crate/exegroup v0.3.0 h1:TBLygDztECKc67NeIIBsFDxlA4KcJpbOmafqqRuKRcM=
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git.blauwelle.com/go/crate/exegroup v0.3.0/go.mod h1:DJoID54YI5WFHGHoTCjBao8oS3HFRzwbWMZW6P57AIQ=
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git.blauwelle.com/go/crate/log v0.4.0 h1:wK/qwO+a2YE51F6LdC9pZXL2AIARCRW0+AvFIF2Txt8=
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git.blauwelle.com/go/crate/log v0.4.0/go.mod h1:NfiG7YKQCTnLIcn6fVkaa2qEu+DuYi1Kz783Sc/F3jI=
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git.blauwelle.com/go/crate/runtimehelper v0.1.0 h1:qNhtnt9YmHXNHKsGRbwD3AZ3pezpOwrbmX1o9Bz532I=
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git.blauwelle.com/go/crate/runtimehelper v0.1.0/go.mod h1:yVMA0GkO9AS7iuPmalHKeWyv9en0JWj25rY1vpTuHhk=
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git.blauwelle.com/go/crate/synchelper v0.1.0 h1:4yEXpshkklaws/57P94xN5bA3NmyyKGcZqYmzd6QIK4=
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git.blauwelle.com/go/crate/synchelper v0.1.0/go.mod h1:2JkfH+7sF0Q0wiIaDOqG42ZLO5JxpcMfSoyy7db4Y2g=
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@ -0,0 +1,155 @@
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package main
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import (
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"strings"
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"time"
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"git.blauwelle.com/go/crate/log"
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)
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func newHandler() http.HandlerFunc {
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return func(rw http.ResponseWriter, r *http.Request) {
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start := time.Now()
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var response Response
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response.Request.TransferEncoding = r.TransferEncoding
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response.Request.Proto = r.Proto
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response.Request.Host = r.Host
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response.Request.Method = r.Method
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response.Request.URL = r.URL.String()
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response.Request.RemoteAddr = r.RemoteAddr
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response.Request.RequestURI = r.RequestURI
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response.Request.Header = r.Header
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response.Request.ContentLength = r.ContentLength
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ctx := r.Context()
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duration := time.Since(start)
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code := http.StatusOK
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var message string
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if r.ContentLength > 0 {
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if body, err := readBody(ctx, r); err != nil {
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response.Error = err.Error()
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} else {
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response.Request.Body = body
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}
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}
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rw.Header().Set("Content-Type", "application/json")
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rw.WriteHeader(code)
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end := time.Now()
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response.ServeDuration = end.Sub(start).String()
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encoder := json.NewEncoder(rw)
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encoder.SetEscapeHTML(true)
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encoder.SetIndent("", " ")
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err := encoder.Encode(response)
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if err != nil {
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log.Errorf(ctx, "json marshal: %s", err.Error())
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}
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log.WithFields(
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log.Field("code", code),
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log.Field("duration", duration.String()),
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).Info(ctx, message)
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}
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}
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type Response struct {
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Error string `json:"error,omitempty"`
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ServeDuration string `json:"serveDuration"`
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Request ResponseRequest `json:"request"`
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}
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type MultipartFormFileInfo struct {
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MIMEHeader map[string][]string `json:"mimeHeader"`
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Filename string `json:"filename"`
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Size int64 `json:"size"`
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}
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type MultipartForm struct {
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Values map[string][]string `json:"values"`
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Files map[string][]MultipartFormFileInfo `json:"files"`
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}
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type ResponseRequest struct {
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Header http.Header `json:"header"`
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Body any `json:"body"`
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Proto string `json:"proto"`
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Host string `json:"host"`
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Method string `json:"method"`
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URL string `json:"url"`
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RemoteAddr string `json:"remoteAddr"`
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RequestURI string `json:"requestUri"`
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TransferEncoding []string `json:"transferEncoding"`
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ContentLength int64 `json:"contentLength"`
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}
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func readBody(ctx context.Context, r *http.Request) (any, error) {
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contentType := r.Header.Get("Content-Type")
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switch {
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case contentType == "":
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return nil, nil
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case strings.HasPrefix(contentType, "application/json"):
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b, err := io.ReadAll(r.Body)
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if err != nil {
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err = fmt.Errorf("read: %w", err)
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log.Error(ctx, err.Error())
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return nil, err
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}
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if err := json.Unmarshal(b, new(any)); err != nil {
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log.Error(ctx, err.Error())
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return nil, err
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}
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return json.RawMessage(b), nil
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case contentType == "application/x-www-form-urlencoded":
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fallthrough
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case strings.HasPrefix(contentType, "application/xml"):
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fallthrough
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case strings.HasPrefix(contentType, "text/"):
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b, err := io.ReadAll(r.Body)
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if err != nil {
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panic(err)
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}
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return string(b), nil
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//case :
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case strings.HasPrefix(contentType, "multipart/form-data"):
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if err := r.ParseMultipartForm(16 * 1024 * 1024); err != nil {
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log.Error(ctx, err.Error())
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return nil, err
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}
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body := MultipartForm{
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Values: make(map[string][]string),
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Files: make(map[string][]MultipartFormFileInfo),
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}
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body.Values = r.MultipartForm.Value
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for k, fs := range r.MultipartForm.File {
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for _, f := range fs {
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body.Files[k] = append(body.Files[k], MultipartFormFileInfo{
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Filename: f.Filename,
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MIMEHeader: f.Header,
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Size: f.Size,
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})
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}
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}
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return body, nil
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}
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b, err := io.ReadAll(r.Body)
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if err != nil {
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err = fmt.Errorf("read: %w", err)
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log.Error(ctx, err.Error())
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return nil, err
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}
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if len(b) > 96 {
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b = b[:96]
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}
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return b, nil
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}
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@ -0,0 +1,26 @@
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package main
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import (
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"context"
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"flag"
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"net/http"
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"git.blauwelle.com/go/crate/exegroup"
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"git.blauwelle.com/go/crate/log"
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"git.blauwelle.com/go/crate/log/logsdk"
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"git.blauwelle.com/go/crate/log/logsdk/logjson"
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)
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var port = flag.Int("port", 8080, "HTTP Port")
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func main() {
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flag.Parse()
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log.Logger().AddProcessor(logsdk.AllLevels, logjson.New())
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g := exegroup.Default()
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mux := http.NewServeMux()
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var handler http.Handler = mux
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mux.HandleFunc("/", newHandler())
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g.New().WithGoStop(exegroup.HttpListenAndServe(*port, handler))
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log.Infof(context.Background(), "listening %d", *port)
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log.Error(context.Background(), "exit: ", g.Run(context.Background()))
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}
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