package cmd import ( "fmt" "io" "io/ioutil" "mime" "net/http" "os" "path/filepath" "github.com/SAP/jenkins-library/pkg/cpi" piperhttp "github.com/SAP/jenkins-library/pkg/http" "github.com/SAP/jenkins-library/pkg/log" "github.com/SAP/jenkins-library/pkg/telemetry" "github.com/pkg/errors" ) func integrationArtifactDownload(config integrationArtifactDownloadOptions, telemetryData *telemetry.CustomData) { // Utils can be used wherever the command.ExecRunner interface is expected. // It can also be used for example as a mavenExecRunner. httpClient := &piperhttp.Client{} // For HTTP calls import piperhttp "github.com/SAP/jenkins-library/pkg/http" // and use a &piperhttp.Client{} in a custom system // Example: step checkmarxExecuteScan.go // Error situations should be bubbled up until they reach the line below which will then stop execution // through the log.Entry().Fatal() call leading to an os.Exit(1) in the end. err := runIntegrationArtifactDownload(&config, telemetryData, httpClient) if err != nil { log.Entry().WithError(err).Fatal("step execution failed") } } func runIntegrationArtifactDownload(config *integrationArtifactDownloadOptions, telemetryData *telemetry.CustomData, httpClient piperhttp.Sender) error { clientOptions := piperhttp.ClientOptions{} header := make(http.Header) header.Add("Accept", "application/zip") serviceKey, err := cpi.ReadCpiServiceKey(config.APIServiceKey) if err != nil { return err } downloadArtifactURL := fmt.Sprintf("%s/api/v1/IntegrationDesigntimeArtifacts(Id='%s',Version='%s')/$value", serviceKey.OAuth.Host, config.IntegrationFlowID, config.IntegrationFlowVersion) tokenParameters := cpi.TokenParameters{TokenURL: serviceKey.OAuth.OAuthTokenProviderURL, Username: serviceKey.OAuth.ClientID, Password: serviceKey.OAuth.ClientSecret, Client: httpClient} token, err := cpi.CommonUtils.GetBearerToken(tokenParameters) if err != nil { return errors.Wrap(err, "failed to fetch Bearer Token") } clientOptions.Token = fmt.Sprintf("Bearer %s", token) httpClient.SetOptions(clientOptions) httpMethod := "GET" downloadResp, httpErr := httpClient.SendRequest(httpMethod, downloadArtifactURL, nil, header, nil) if httpErr != nil { return errors.Wrapf(httpErr, "HTTP %v request to %v failed with error", httpMethod, downloadArtifactURL) } if downloadResp == nil { return errors.Errorf("did not retrieve a HTTP response: %v", httpErr) } contentDisposition := downloadResp.Header.Get("Content-Disposition") disposition, params, err := mime.ParseMediaType(contentDisposition) if err != nil { return errors.Wrapf(err, "failed to read filename from http response headers, Content-Disposition "+disposition) } filename := params["filename"] if downloadResp != nil && downloadResp.Body != nil { defer downloadResp.Body.Close() } if downloadResp.StatusCode == 200 { workspaceRelativePath := config.DownloadPath err = os.MkdirAll(workspaceRelativePath, 0755) if err != nil { return errors.Wrapf(err, "Failed to create workspace directory") } zipFileName := filepath.Join(workspaceRelativePath, filename) file, err := os.Create(zipFileName) if err != nil { return errors.Wrapf(err, "Failed to create integration flow artifact file") } if _, err := io.Copy(file, downloadResp.Body); err != nil { return err } return nil } responseBody, readErr := ioutil.ReadAll(downloadResp.Body) if readErr != nil { return errors.Wrapf(readErr, "HTTP response body could not be read, Response status code : %v", downloadResp.StatusCode) } log.Entry().Errorf("a HTTP error occurred! Response body: %v, Response status code : %v", string(responseBody), downloadResp.StatusCode) return errors.Errorf("Integration Flow artifact download failed, Response Status code: %v", downloadResp.StatusCode) }