Created
August 14, 2024 12:02
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login-keycloak-post.go
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| func loginPost(in *AuthParam, reqInfo RequestInfo) (*SignInResponse, error) { | |
| keycloakURL := os.Getenv("KEYCLOAK_URL") + "auth/realms/" + os.Getenv("KEYCLOAK_REALM_NAME") + "/protocol/openid-connect/token" | |
| clientToken := base64.StdEncoding.EncodeToString([]byte(os.Getenv("KEYCLOAK_ADMIN_CLIENT_SECRET"))) | |
| form := url.Values{ | |
| "grant_type": {"password"}, | |
| "username": {in.Username}, | |
| "password": {in.Password}, | |
| "scope": {"openid"}, | |
| } | |
| client := &http.Client{Timeout: 10 * time.Second} | |
| req, err := http.NewRequest("POST", keycloakURL, bytes.NewBufferString(form.Encode())) | |
| if err != nil { | |
| return nil, status.Error(KeycloakUnreachableCode, KeycloakUnreachable) | |
| } | |
| req.Header.Add("Content-Type", "application/x-www-form-urlencoded") | |
| req.Header.Add("Authorization", "Basic "+clientToken) | |
| resp, err := client.Do(req) | |
| if err != nil { | |
| return nil, status.Error(KeycloakUnreachableCode, KeycloakUnreachable) | |
| } | |
| defer resp.Body.Close() | |
| if resp.StatusCode >= 400 { | |
| if resp.StatusCode == http.StatusUnauthorized { | |
| return nil, errors.New(AuthFailed) | |
| } | |
| return nil, status.Error(KeycloakUnreachableCode, KeycloakUnreachable) | |
| } | |
| respByte, err := ioutil.ReadAll(resp.Body) | |
| if err != nil { | |
| return nil, status.Error(KeycloakUnreachableCode, KeycloakUnreachable) | |
| } | |
| signIn := SignInResponse{} | |
| if err := json.Unmarshal(respByte, &signIn); err != nil { | |
| return nil, status.Error(KeycloakUnreachableCode, KeycloakUnreachable) | |
| } | |
| return &signIn, nil | |
| } | |
| type SignInResponse struct { | |
| AccessToken string `json:"access_token"` | |
| ExpiresIn int64 `json:"expires_in"` | |
| RefreshExpiresIn int64 `json:"refresh_expires_in"` | |
| RefreshToken string `json:"refresh_token"` | |
| TokenType string `json:"token_type"` | |
| IdToken string `json:"id_token"` | |
| NotBeforePolicy int64 `json:"not-before-policy"` | |
| SessionState string `json:"session_state"` | |
| Scope string `json:"scope"` | |
| } |
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