177 lines
4.1 KiB
Go
177 lines
4.1 KiB
Go
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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"html/template"
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"io/ioutil"
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"net/http"
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"os"
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"strings"
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"github.com/sirupsen/logrus"
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"golang.org/x/oauth2"
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"github.com/zitadel/oidc/pkg/client/profile"
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)
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var client = http.DefaultClient
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func main() {
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keyPath := os.Getenv("KEY_PATH")
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issuer := os.Getenv("ISSUER")
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port := os.Getenv("PORT")
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scopes := strings.Split(os.Getenv("SCOPES"), " ")
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if keyPath != "" {
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ts, err := profile.NewJWTProfileTokenSourceFromKeyFile(issuer, keyPath, scopes)
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if err != nil {
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logrus.Fatalf("error creating token source %s", err.Error())
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}
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client = oauth2.NewClient(context.Background(), ts)
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}
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http.HandleFunc("/jwt-profile", func(w http.ResponseWriter, r *http.Request) {
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if r.Method == "GET" {
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tpl := `
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Login</title>
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</head>
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<body>
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<form method="POST" action="/jwt-profile" enctype="multipart/form-data">
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<label for="key">Select a key file:</label>
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<input type="file" accept=".json" id="key" name="key">
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<button type="submit">Get Token</button>
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</form>
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</body>
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</html>`
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t, err := template.New("login").Parse(tpl)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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err = t.Execute(w, nil)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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}
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} else {
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err := r.ParseMultipartForm(4 << 10)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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file, _, err := r.FormFile("key")
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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defer file.Close()
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key, err := ioutil.ReadAll(file)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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ts, err := profile.NewJWTProfileTokenSourceFromKeyFileData(issuer, key, scopes)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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client = oauth2.NewClient(context.Background(), ts)
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token, err := ts.Token()
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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data, err := json.Marshal(token)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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w.Write(data)
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}
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})
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http.HandleFunc("/test", func(w http.ResponseWriter, r *http.Request) {
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tpl := `
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Test</title>
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</head>
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<body>
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<form method="POST" action="/test">
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<label for="url">URL for test:</label>
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<input type="text" id="url" name="url" width="200px">
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<button type="submit">Test Token</button>
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</form>
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{{if .URL}}
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<p>
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Result for {{.URL}}: {{.Response}}
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</p>
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{{end}}
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</body>
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</html>`
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err := r.ParseForm()
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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testURL := r.Form.Get("url")
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var data struct {
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URL string
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Response interface{}
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}
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if testURL != "" {
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data.URL = testURL
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data.Response, err = callExampleEndpoint(client, testURL)
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if err != nil {
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data.Response = err
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}
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}
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t, err := template.New("login").Parse(tpl)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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err = t.Execute(w, data)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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}
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})
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lis := fmt.Sprintf("127.0.0.1:%s", port)
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logrus.Infof("listening on http://%s/", lis)
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logrus.Fatal(http.ListenAndServe("127.0.0.1:"+port, nil))
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}
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func callExampleEndpoint(client *http.Client, testURL string) (interface{}, error) {
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req, err := http.NewRequest("GET", testURL, nil)
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if err != nil {
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return nil, err
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}
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resp, err := client.Do(req)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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if resp.StatusCode != http.StatusOK {
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return "", fmt.Errorf("http status not ok: %s %s", resp.Status, body)
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}
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if strings.HasPrefix(resp.Header.Get("content-type"), "text/plain") {
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return string(body), nil
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}
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return body, err
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}
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