| // Copyright 2017 Google Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package apidVerifyApiKey |
| |
| import ( |
| "database/sql" |
| "encoding/json" |
| "errors" |
| "io" |
| "io/ioutil" |
| "net/http" |
| "strconv" |
| "strings" |
| ) |
| |
| type apiManagerInterface interface { |
| InitAPI() |
| handleRequest(w http.ResponseWriter, r *http.Request) |
| verifyAPIKey(verifyApiKeyReq VerifyApiKeyRequest) ([]byte, error) |
| } |
| |
| type apiManager struct { |
| dbMan dbManagerInterface |
| verifiersEndpoint string |
| apiInitialized bool |
| } |
| |
| func (a *apiManager) InitAPI() { |
| if a.apiInitialized { |
| return |
| } |
| services.API().HandleFunc(a.verifiersEndpoint, a.handleRequest).Methods("POST") |
| a.apiInitialized = true |
| log.Debug("API endpoints initialized") |
| } |
| |
| // handle client API |
| func (apiManager *apiManager) handleRequest(w http.ResponseWriter, r *http.Request) { |
| w.Header().Set("Content-Type", "application/json") |
| verifyApiKeyReq, err := validateRequest(r.Body, w) |
| if err != nil { |
| return |
| } |
| |
| b, err := apiManager.verifyAPIKey(verifyApiKeyReq) |
| |
| if err != nil { |
| respStatusCode, atoierr := strconv.Atoi(err.Error()) |
| if atoierr != nil { |
| w.WriteHeader(http.StatusInternalServerError) |
| } else { |
| w.WriteHeader(respStatusCode) |
| } |
| // TODO : discuss and finalize on error codes. |
| w.WriteHeader(http.StatusBadRequest) |
| } |
| |
| log.Debugf("handleVerifyAPIKey result %s", b) |
| |
| w.Write(b) |
| return |
| } |
| |
| func validateRequest(requestBody io.ReadCloser, w http.ResponseWriter) (VerifyApiKeyRequest, error) { |
| // 1. read request boby |
| var verifyApiKeyReq VerifyApiKeyRequest |
| body, err := ioutil.ReadAll(requestBody) |
| if err != nil { |
| w.WriteHeader(http.StatusBadRequest) |
| w.Write([]byte(err.Error())) |
| return verifyApiKeyReq, errors.New("Bad_REQUEST") |
| } |
| log.Debug(string(body)) |
| // 2. umarshall json to struct |
| err = json.Unmarshal(body, &verifyApiKeyReq) |
| if err != nil { |
| w.WriteHeader(http.StatusBadRequest) |
| w.Write([]byte(err.Error())) |
| return verifyApiKeyReq, errors.New("Bad_REQUEST") |
| } |
| log.Debug(verifyApiKeyReq) |
| |
| // 2. verify params |
| if verifyApiKeyReq.Action == "" || verifyApiKeyReq.ApiProxyName == "" || verifyApiKeyReq.OrganizationName == "" || verifyApiKeyReq.EnvironmentName == "" || verifyApiKeyReq.Key == "" { |
| // TODO : set correct fields in error response |
| errorResponse := errorResponse("Bad_REQUEST", "Missing element") |
| w.WriteHeader(http.StatusBadRequest) |
| w.Write(errorResponse) |
| return verifyApiKeyReq, errors.New("Bad_REQUEST") |
| } |
| return verifyApiKeyReq, nil |
| } |
| |
| // returns []byte to be written to client |
| func (apiM apiManager) verifyAPIKey(verifyApiKeyReq VerifyApiKeyRequest) ([]byte, error) { |
| |
| dataWrapper := VerifyApiKeyRequestResponseDataWrapper{ |
| verifyApiKeyRequest: verifyApiKeyReq, |
| } |
| dataWrapper.verifyApiKeySuccessResponse.ClientId.ClientId = verifyApiKeyReq.Key |
| |
| err := apiM.dbMan.getApiKeyDetails(&dataWrapper) |
| |
| switch { |
| case err == sql.ErrNoRows: |
| reason := "API Key verify failed for (" + verifyApiKeyReq.Key + ", " + verifyApiKeyReq.OrganizationName + ")" |
| errorCode := "oauth.v2.InvalidApiKey" |
| return errorResponse(reason, errorCode), errors.New(strconv.Itoa(http.StatusBadRequest)) |
| |
| case err != nil: |
| reason := err.Error() |
| errorCode := "SEARCH_INTERNAL_ERROR" |
| return errorResponse(reason, errorCode), errors.New(strconv.Itoa(http.StatusInternalServerError)) |
| } |
| |
| /* |
| * Perform all validations |
| */ |
| errResponse, err := apiM.performValidations(dataWrapper) |
| if errResponse != nil { |
| return errResponse, err |
| } |
| |
| apiM.enrichAttributes(dataWrapper) |
| |
| if dataWrapper.ctype == "developer" { |
| dataWrapper.verifyApiKeySuccessResponse.Developer = dataWrapper.tempDeveloperDetails |
| } else { |
| dataWrapper.verifyApiKeySuccessResponse.Company = CompanyDetails{ |
| Id: dataWrapper.tempDeveloperDetails.Id, |
| DisplayName: dataWrapper.tempDeveloperDetails.UserName, |
| Status: dataWrapper.tempDeveloperDetails.Status, |
| CreatedAt: dataWrapper.tempDeveloperDetails.CreatedAt, |
| CreatedBy: dataWrapper.tempDeveloperDetails.CreatedBy, |
| LastmodifiedAt: dataWrapper.tempDeveloperDetails.LastmodifiedAt, |
| LastmodifiedBy: dataWrapper.tempDeveloperDetails.LastmodifiedBy, |
| Attributes: dataWrapper.tempDeveloperDetails.Attributes, |
| } |
| } |
| |
| resp := dataWrapper.verifyApiKeySuccessResponse |
| |
| return json.Marshal(resp) |
| } |
| |
| func (apiM apiManager) performValidations(dataWrapper VerifyApiKeyRequestResponseDataWrapper) ([]byte, error) { |
| clientIdDetails := dataWrapper.verifyApiKeySuccessResponse.ClientId |
| verifyApiKeyReq := dataWrapper.verifyApiKeyRequest |
| appDetails := dataWrapper.verifyApiKeySuccessResponse.App |
| tempDeveloperDetails := dataWrapper.tempDeveloperDetails |
| cType := dataWrapper.ctype |
| apiProductDetails := dataWrapper.verifyApiKeySuccessResponse.ApiProduct |
| |
| if !strings.EqualFold("APPROVED", clientIdDetails.Status) { |
| reason := "API Key verify failed for (" + verifyApiKeyReq.Key + ", " + verifyApiKeyReq.OrganizationName + ")" |
| errorCode := "oauth.v2.ApiKeyNotApproved" |
| return errorResponse(reason, errorCode), errors.New(strconv.Itoa(http.StatusUnauthorized)) |
| } |
| |
| if !strings.EqualFold("APPROVED", appDetails.Status) { |
| reason := "API Key verify failed for (" + verifyApiKeyReq.Key + ", " + verifyApiKeyReq.OrganizationName + ")" |
| errorCode := "keymanagement.service.invalid_client-app_not_approved" |
| return errorResponse(reason, errorCode), errors.New(strconv.Itoa(http.StatusUnauthorized)) |
| } |
| |
| if !strings.EqualFold("ACTIVE", tempDeveloperDetails.Status) { |
| reason := "API Key verify failed for (" + verifyApiKeyReq.Key + ", " + verifyApiKeyReq.OrganizationName + ")" |
| errorCode := "keymanagement.service.DeveloperStatusNotActive" |
| if cType == "company" { |
| errorCode = "keymanagement.service.CompanyStatusNotActive" |
| } |
| return errorResponse(reason, errorCode), errors.New(strconv.Itoa(http.StatusUnauthorized)) |
| } |
| |
| result := validatePath(apiProductDetails.Resources, verifyApiKeyReq.UriPath) |
| if result == false { |
| reason := "Path Validation Failed (" + strings.Join(apiProductDetails.Resources, ", ") + " vs " + verifyApiKeyReq.UriPath + ")" |
| errorCode := "oauth.v2.InvalidApiKeyForGivenResource" |
| return errorResponse(reason, errorCode), errors.New(strconv.Itoa(http.StatusUnauthorized)) |
| } |
| |
| /* Verify if the ENV matches */ |
| if verifyApiKeyReq.ValidateAgainstApiProxiesAndEnvs && !contains(apiProductDetails.Environments, verifyApiKeyReq.EnvironmentName) { |
| reason := "ENV Validation Failed (" + strings.Join(apiProductDetails.Environments, ", ") + " vs " + verifyApiKeyReq.EnvironmentName + ")" |
| errorCode := "oauth.v2.InvalidApiKeyForGivenResource" |
| return errorResponse(reason, errorCode), errors.New(strconv.Itoa(http.StatusUnauthorized)) |
| } |
| |
| if verifyApiKeyReq.ValidateAgainstApiProxiesAndEnvs && !contains(apiProductDetails.Apiproxies, verifyApiKeyReq.ApiProxyName) { |
| reason := "Proxy Validation Failed (" + strings.Join(apiProductDetails.Apiproxies, ", ") + " vs " + verifyApiKeyReq.ApiProxyName + ")" |
| errorCode := "oauth.v2.InvalidApiKeyForGivenResource" |
| return errorResponse(reason, errorCode), errors.New(strconv.Itoa(http.StatusUnauthorized)) |
| } |
| |
| return nil, nil |
| |
| } |
| |
| func contains(givenArray []string, searchString string) bool { |
| for _, element := range givenArray { |
| if element == searchString { |
| return true |
| } |
| } |
| return false |
| } |
| |
| func (a *apiManager) enrichAttributes(dataWrapper VerifyApiKeyRequestResponseDataWrapper) { |
| clientIdAttributes := a.dbMan.getKmsAttributes(dataWrapper.tenant_id, dataWrapper.verifyApiKeySuccessResponse.ClientId.ClientId) |
| developerAttributes := a.dbMan.getKmsAttributes(dataWrapper.tenant_id, dataWrapper.tempDeveloperDetails.Id) |
| appAttributes := a.dbMan.getKmsAttributes(dataWrapper.tenant_id, dataWrapper.verifyApiKeySuccessResponse.App.Id) |
| apiProductAttributes := a.dbMan.getKmsAttributes(dataWrapper.tenant_id, dataWrapper.verifyApiKeySuccessResponse.ApiProduct.Id) |
| |
| dataWrapper.verifyApiKeySuccessResponse.ClientId.Attributes = clientIdAttributes |
| dataWrapper.verifyApiKeySuccessResponse.App.Attributes = appAttributes |
| dataWrapper.verifyApiKeySuccessResponse.ApiProduct.Attributes = apiProductAttributes |
| dataWrapper.tempDeveloperDetails.Attributes = developerAttributes |
| } |
| |
| func errorResponse(reason, errorCode string) []byte { |
| if errorCode == "SEARCH_INTERNAL_ERROR" { |
| log.Error(reason) |
| } else { |
| log.Debug(reason) |
| } |
| resp := ErrorResponse{ |
| ResponseCode: errorCode, |
| ResponseMessage: reason, |
| } |
| ret, _ := json.Marshal(resp) |
| return ret |
| } |
