fix(engine): check md5 on artifact download + fix error printing

cli/cdsctl/workflow_artifact.go

@@ -3,7 +3,6 @@ package main
 import (
 	"context"
 	"fmt"
-	"io"
 	"os"
 	"regexp"
 	"strconv"
@@ -170,33 +169,19 @@ func workflowArtifactDownloadRun(v cli.Values) error {
 		}
 
 		if toDownload {
-			var err error
-			f, err = os.OpenFile(artifactData.Name, os.O_RDWR|os.O_CREATE|os.O_TRUNC, os.FileMode(artifactData.Perm))
-			if err != nil {
-				return err
-			}
 			fmt.Printf("Downloading %s...\n", artifactData.Name)
-			r, err := client.CDNItemDownload(context.Background(), confCDN.HTTPURL, artifactData.CDNRefHash, sdk.CDNTypeItemRunResult)
+			f, err := os.OpenFile(artifactData.Name, os.O_RDWR|os.O_CREATE|os.O_TRUNC, os.FileMode(artifactData.Perm))
 			if err != nil {
-				return err
+				return sdk.NewError(sdk.ErrUnknownError, fmt.Errorf("cannot create file (OpenFile) %s: %s", artifactData.Name, err))
 			}
-			if _, err := io.Copy(f, r); err != nil {
-				return cli.WrapError(err, "unable to write file")
+			if err := client.CDNItemDownload(context.Background(), confCDN.HTTPURL, artifactData.CDNRefHash, sdk.CDNTypeItemRunResult, artifactData.MD5, f); err != nil {
+				_ = f.Close()
+				return err
 			}
 			if err := f.Close(); err != nil {
-				return cli.WrapError(err, "unable to close file")
+				return sdk.NewErrorFrom(sdk.ErrUnknownError, "unable to close file %s: %v", artifactData.Name, err)
 			}
 		}
-
-		md5Sum, err := sdk.FileMd5sum(artifactData.Name)
-		if err != nil {
-			return err
-		}
-
-		if md5Sum != artifactData.MD5 {
-			return cli.NewError("Invalid md5Sum \ndownloaded file:%s\n%s:%s", md5Sum, f.Name(), artifactData.MD5)
-		}
-
 		if toDownload {
 			fmt.Printf("File %s created, checksum OK\n", f.Name())
 		} else {

cli/cdsctl/workflow_run_result.go

@@ -3,7 +3,6 @@ package main
 import (
 	"context"
 	"fmt"
-	"io"
 	"os"
 	"regexp"
 
@@ -129,30 +128,17 @@ func workflowRunResultGet(v cli.Values) error {
 			var err error
 			f, err = os.OpenFile(fileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC, os.FileMode(perm))
 			if err != nil {
-				return err
+				return sdk.NewError(sdk.ErrUnknownError, fmt.Errorf("cannot create file (OpenFile) %s: %s", fileName, err))
 			}
 			fmt.Printf("Downloading %s...\n", fileName)
-			r, err := client.CDNItemDownload(context.Background(), confCDN.HTTPURL, cdnHash, sdk.CDNTypeItemRunResult)
-			if err != nil {
+			if err := client.CDNItemDownload(context.Background(), confCDN.HTTPURL, cdnHash, sdk.CDNTypeItemRunResult, md5, f); err != nil {
+				_ = f.Close()
 				return err
 			}
-			if _, err := io.Copy(f, r); err != nil {
-				return cli.WrapError(err, "unable to write file")
-			}
 			if err := f.Close(); err != nil {
-				return cli.WrapError(err, "unable to close file")
+				return sdk.NewErrorFrom(sdk.ErrUnknownError, "unable to close file %s: %v", fileName, err)
 			}
 		}
-
-		md5Sum, err := sdk.FileMd5sum(fileName)
-		if err != nil {
-			return err
-		}
-
-		if md5Sum != md5 {
-			return cli.NewError("Invalid md5Sum \ndownloaded file:%s\n%s:%s", md5Sum, f.Name(), md5)
-		}
-
 		if toDownload {
 			fmt.Printf("File %s created, checksum OK\n", f.Name())
 		} else {

engine/api/workflow_application.go

@@ -173,7 +173,7 @@ func (api *API) releaseApplicationWorkflowHandler() service.Handler {
 			var lastErr error
 			for {
 				attempt++
-				reader, err := api.Client.CDNItemDownload(ctx, cdnHTTP, r.CDNRefHash, sdk.CDNTypeItemRunResult)
+				reader, err := api.Client.CDNItemStream(ctx, cdnHTTP, r.CDNRefHash, sdk.CDNTypeItemRunResult)
 				if err != nil {
 					return err
 				}
@@ -189,9 +189,7 @@ func (api *API) releaseApplicationWorkflowHandler() service.Handler {
 			if lastErr != nil {
 				return err
 			}
-
 		}
-
 		return nil
 	}
 }

engine/cdn/cdn_file.go

@@ -8,6 +8,7 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"io"
+	"net/http"
 	"os"
 
 	"github.com/ovh/cds/engine/cdn/item"
@@ -42,7 +43,7 @@ func (s *Service) storeFile(ctx context.Context, sig cdn.Signature, reader io.Re
 	// Check Item unicity
 	_, err = item.LoadByAPIRefHashAndType(ctx, s.Mapper, s.mustDBWithCtx(ctx), hashRef, itemType)
 	if err == nil {
-		return sdk.WrapError(sdk.ErrConflictData, "cannot upload the same file twice")
+		return sdk.NewErrorFrom(sdk.ErrInvalidData, "cannot upload the same file twice")
 	}
 	if !sdk.ErrorIs(err, sdk.ErrNotFound) {
 		return err
@@ -67,7 +68,11 @@ func (s *Service) storeFile(ctx context.Context, sig cdn.Signature, reader io.Re
 			RunNodeID:  runResultApiRef.RunNodeID,
 			RunJobID:   runResultApiRef.RunJobID,
 		}
-		if err := s.Client.QueueWorkflowRunResultCheck(ctx, sig.JobID, runResultCheck); err != nil {
+		code, err := s.Client.QueueWorkflowRunResultCheck(ctx, sig.JobID, runResultCheck)
+		if err != nil {
+			if code == http.StatusConflict {
+				return sdk.NewErrorFrom(sdk.ErrInvalidData, "unable to upload the same file twice")
+			}
 			return err
 		}
 	}

engine/cdn/cdn_sync_test.go

@@ -141,8 +141,9 @@ func TestSyncLog(t *testing.T) {
 
 	var cdsStorage *cds.CDS
 	for _, sto := range s.Units.Storages {
-		cdsStorage = sto.(*cds.CDS)
-		if cdsStorage != nil {
+		var is bool
+		cdsStorage, is = sto.(*cds.CDS)
+		if is {
 			break
 		}
 	}

engine/worker/internal/action/builtin_artifact_download.go

@@ -3,7 +3,6 @@ package action
 import (
 	"context"
 	"fmt"
-	"io"
 	"os"
 	"path"
 	"path/filepath"
@@ -115,34 +114,28 @@ func RunArtifactDownload(ctx context.Context, wk workerruntime.Runtime, a sdk.Ac
 		go func(a sdk.CDNItem) {
 			defer wg.Done()
 			destFile := path.Join(destPath, a.APIRef.ToFilename())
-			f, err := wkDirFS.OpenFile(destFile, os.O_RDWR|os.O_CREATE|os.O_TRUNC, os.FileMode(apiRef.Perm))
-			if err != nil {
-				res.Status = sdk.StatusFail
-				res.Reason = err.Error()
-				log.Warn(ctx, "Cannot download artifact (OpenFile) %s: %s", destFile, err)
-				wk.SendLog(ctx, workerruntime.LevelError, res.Reason)
-				return
-			}
 			wk.SendLog(ctx, workerruntime.LevelInfo, fmt.Sprintf("Downloading artifact %s from workflow %s/%s on run %d...", destFile, project, workflow, n))
 
-			r, err := wk.Client().CDNItemDownload(ctx, wk.CDNHttpURL(), item.APIRefHash, sdk.CDNTypeItemRunResult)
+			f, err := os.OpenFile(destFile, os.O_RDWR|os.O_CREATE|os.O_TRUNC, os.FileMode(apiRef.Perm))
 			if err != nil {
 				res.Status = sdk.StatusFail
-				res.Reason = err.Error()
-				log.Warn(ctx, "Cannot download artifact %s: %s", destFile, err)
+				res.Reason = sdk.NewError(sdk.ErrUnknownError, fmt.Errorf("cannot create file (OpenFile) %s: %s", destFile, err)).Error()
+				log.Warn(ctx, "%s", res.Reason)
 				wk.SendLog(ctx, workerruntime.LevelError, res.Reason)
 				return
 			}
-			if _, err := io.Copy(f, r); err != nil {
+			if err := wk.Client().CDNItemDownload(ctx, wk.CDNHttpURL(), item.APIRefHash, sdk.CDNTypeItemRunResult, a.MD5, f); err != nil {
+				_ = f.Close()
 				res.Status = sdk.StatusFail
 				res.Reason = err.Error()
-				log.Warn(ctx, "cannot download artifact %s: %s", destFile, sdk.WithStack(err))
+				log.Warn(ctx, "Cannot download artifact %s: %s", destFile, err)
 				wk.SendLog(ctx, workerruntime.LevelError, res.Reason)
+				return
 			}
 			if err := f.Close(); err != nil {
 				res.Status = sdk.StatusFail
-				res.Reason = err.Error()
-				log.Warn(ctx, "Cannot close file %s: %s", destFile, err)
+				res.Reason = sdk.NewErrorFrom(sdk.ErrUnknownError, "unable to close file %s: %v", destFile, err).Error()
+				log.Warn(ctx, "%s", res.Reason)
 				wk.SendLog(ctx, workerruntime.LevelError, res.Reason)
 				return
 			}

engine/worker/internal/action/builtin_artifact_upload.go

@@ -95,7 +95,6 @@ func RunArtifactUpload(ctx context.Context, wk workerruntime.Runtime, a sdk.Acti
 			// 3. CDN activated or not
 			if integrationName != sdk.DefaultStorageIntegrationName {
 				if err := uploadArtifactByApiCall(path, wk, ctx, projectKey, integrationName, jobID, tag); err != nil {
-					log.Warn(ctx, "queueArtifactUpload(%s, %s, %d, %s, %s) failed: %v", projectKey, integrationName, jobID, tag.Value, path, err)
 					chanError <- sdk.WrapError(err, "Error while uploading artifact by api call %s", path)
 					wgErrors.Add(1)
 				}
@@ -107,14 +106,12 @@ func RunArtifactUpload(ctx context.Context, wk workerruntime.Runtime, a sdk.Acti
 				}
 			} else if !cdnArtifactEnabled {
 				if err := uploadArtifactByApiCall(path, wk, ctx, projectKey, integrationName, jobID, tag); err != nil {
-					log.Warn(ctx, "queueArtifactUpload(%s, %s, %d, %s, %s) failed: %v", projectKey, integrationName, jobID, tag.Value, path, err)
 					chanError <- sdk.WrapError(err, "Error while uploading artifact by api call %s", path)
 					wgErrors.Add(1)
 				}
 				return
 			} else {
 				if err := uploadArtifactIntoCDN(path, ctx, wk); err != nil {
-					log.Error(ctx, "unable to upload artifact into cdn %q: %v", path, err)
 					chanError <- err
 					wgErrors.Add(1)
 				}
@@ -133,7 +130,7 @@ func RunArtifactUpload(ctx context.Context, wk workerruntime.Runtime, a sdk.Acti
 	wgErrors.Wait()
 
 	if !globalError.IsEmpty() {
-		return res, sdk.NewError(sdk.ErrUnknownError, fmt.Errorf("error: fail to upload artifact"))
+		return res, fmt.Errorf("%s", globalError.Error())
 	}
 
 	return res, nil
@@ -143,7 +140,11 @@ func uploadArtifactByIntegrationPlugin(path string, ctx context.Context, wk work
 	_, fileName := filepath.Split(path)
 
 	// Check run result
-	if err := checkArtifactUpload(ctx, wk, fileName, sdk.WorkflowRunResultTypeArtifactManager); err != nil {
+	code, err := checkArtifactUpload(ctx, wk, fileName, sdk.WorkflowRunResultTypeArtifactManager)
+	if err != nil {
+		if code == 409 {
+			return fmt.Errorf("unable to upload the same file twice: %s", fileName)
+		}
 		return fmt.Errorf("unable to check artifact upload authorization: %v", err)
 	}
 
@@ -233,7 +234,7 @@ func uploadArtifactIntoCDN(path string, ctx context.Context, wk workerruntime.Ru
 
 	duration, err := wk.Client().CDNItemUpload(ctx, wk.CDNHttpURL(), signature, afero.NewOsFs(), path)
 	if err != nil {
-		return sdk.WrapError(err, "Error while uploading artifact %s", path)
+		return err
 	}
 	wk.SendLog(ctx, workerruntime.LevelInfo, fmt.Sprintf("File '%s' uploaded in %.2fs to CDS CDN", path, duration.Seconds()))
 	return nil
@@ -252,7 +253,7 @@ func uploadArtifactByApiCall(path string, wk workerruntime.Runtime, ctx context.
 	return nil
 }
 
-func checkArtifactUpload(ctx context.Context, wk workerruntime.Runtime, fileName string, runResultType sdk.WorkflowRunResultType) error {
+func checkArtifactUpload(ctx context.Context, wk workerruntime.Runtime, fileName string, runResultType sdk.WorkflowRunResultType) (int, error) {
 	runID, runNodeID, runJobID := wk.GetJobIdentifiers()
 	runResultCheck := sdk.WorkflowRunResultCheck{
 		RunJobID:   runJobID,