github.com/SAP/jenkins-library@v1.362.0/cmd/integrationArtifactDownload.go (about) 1 package cmd 2 3 import ( 4 "fmt" 5 "io" 6 "mime" 7 "net/http" 8 "os" 9 "path/filepath" 10 11 "github.com/SAP/jenkins-library/pkg/cpi" 12 piperhttp "github.com/SAP/jenkins-library/pkg/http" 13 "github.com/SAP/jenkins-library/pkg/log" 14 "github.com/SAP/jenkins-library/pkg/telemetry" 15 "github.com/pkg/errors" 16 ) 17 18 func integrationArtifactDownload(config integrationArtifactDownloadOptions, telemetryData *telemetry.CustomData) { 19 // Utils can be used wherever the command.ExecRunner interface is expected. 20 // It can also be used for example as a mavenExecRunner. 21 httpClient := &piperhttp.Client{} 22 23 // For HTTP calls import piperhttp "github.com/SAP/jenkins-library/pkg/http" 24 // and use a &piperhttp.Client{} in a custom system 25 // Example: step checkmarxExecuteScan.go 26 27 // Error situations should be bubbled up until they reach the line below which will then stop execution 28 // through the log.Entry().Fatal() call leading to an os.Exit(1) in the end. 29 err := runIntegrationArtifactDownload(&config, telemetryData, httpClient) 30 if err != nil { 31 log.Entry().WithError(err).Fatal("step execution failed") 32 } 33 } 34 35 func runIntegrationArtifactDownload(config *integrationArtifactDownloadOptions, telemetryData *telemetry.CustomData, httpClient piperhttp.Sender) error { 36 clientOptions := piperhttp.ClientOptions{} 37 header := make(http.Header) 38 header.Add("Accept", "application/zip") 39 serviceKey, err := cpi.ReadCpiServiceKey(config.APIServiceKey) 40 if err != nil { 41 return err 42 } 43 downloadArtifactURL := fmt.Sprintf("%s/api/v1/IntegrationDesigntimeArtifacts(Id='%s',Version='%s')/$value", serviceKey.OAuth.Host, config.IntegrationFlowID, config.IntegrationFlowVersion) 44 tokenParameters := cpi.TokenParameters{TokenURL: serviceKey.OAuth.OAuthTokenProviderURL, Username: serviceKey.OAuth.ClientID, Password: serviceKey.OAuth.ClientSecret, Client: httpClient} 45 token, err := cpi.CommonUtils.GetBearerToken(tokenParameters) 46 if err != nil { 47 return errors.Wrap(err, "failed to fetch Bearer Token") 48 } 49 clientOptions.Token = fmt.Sprintf("Bearer %s", token) 50 httpClient.SetOptions(clientOptions) 51 httpMethod := "GET" 52 downloadResp, httpErr := httpClient.SendRequest(httpMethod, downloadArtifactURL, nil, header, nil) 53 if httpErr != nil { 54 return errors.Wrapf(httpErr, "HTTP %v request to %v failed with error", httpMethod, downloadArtifactURL) 55 } 56 if downloadResp == nil { 57 return errors.Errorf("did not retrieve a HTTP response: %v", httpErr) 58 } 59 contentDisposition := downloadResp.Header.Get("Content-Disposition") 60 disposition, params, err := mime.ParseMediaType(contentDisposition) 61 if err != nil { 62 return errors.Wrapf(err, "failed to read filename from http response headers, Content-Disposition "+disposition) 63 } 64 filename := params["filename"] 65 66 if downloadResp != nil && downloadResp.Body != nil { 67 defer downloadResp.Body.Close() 68 } 69 70 if downloadResp.StatusCode == 200 { 71 workspaceRelativePath := config.DownloadPath 72 err = os.MkdirAll(workspaceRelativePath, 0755) 73 if err != nil { 74 return errors.Wrapf(err, "Failed to create workspace directory") 75 } 76 zipFileName := filepath.Join(workspaceRelativePath, filename) 77 file, err := os.Create(zipFileName) 78 if err != nil { 79 return errors.Wrapf(err, "Failed to create integration flow artifact file") 80 } 81 if _, err := io.Copy(file, downloadResp.Body); err != nil { 82 return err 83 } 84 return nil 85 } 86 responseBody, readErr := io.ReadAll(downloadResp.Body) 87 88 if readErr != nil { 89 return errors.Wrapf(readErr, "HTTP response body could not be read, Response status code : %v", downloadResp.StatusCode) 90 } 91 92 log.Entry().Errorf("a HTTP error occurred! Response body: %v, Response status code : %v", string(responseBody), downloadResp.StatusCode) 93 return errors.Errorf("Integration Flow artifact download failed, Response Status code: %v", downloadResp.StatusCode) 94 }