Do not fail if downloaded file has good checksum but incorrect size. (arduino#2739)

* Do not fail download if archive size do not match package_index.json size (checksum is sufficient)

* Added unit tests

* Added integration test

Author: cmaglie

internal/arduino/resources/checksums.go

@@ -31,6 +31,7 @@ import (
 
 	"github.com/arduino/arduino-cli/internal/i18n"
 	paths "github.com/arduino/go-paths-helper"
+	"github.com/sirupsen/logrus"
 )
 
 // TestLocalArchiveChecksum test if the checksum of the local archive match the checksum of the DownloadResource
@@ -82,20 +83,21 @@ func (r *DownloadResource) TestLocalArchiveChecksum(downloadDir *paths.Path) (bo
 }
 
 // TestLocalArchiveSize test if the local archive size match the DownloadResource size
-func (r *DownloadResource) TestLocalArchiveSize(downloadDir *paths.Path) (bool, error) {
+func (r *DownloadResource) TestLocalArchiveSize(downloadDir *paths.Path) error {
 	filePath, err := r.ArchivePath(downloadDir)
 	if err != nil {
-		return false, errors.New(i18n.Tr("getting archive path: %s", err))
+		return errors.New(i18n.Tr("getting archive path: %s", err))
 	}
 	info, err := filePath.Stat()
 	if err != nil {
-		return false, errors.New(i18n.Tr("getting archive info: %s", err))
+		return errors.New(i18n.Tr("getting archive info: %s", err))
 	}
+	// If the size do not match, just report a warning and continue
+	// (the checksum is sufficient to ensure the integrity of the archive)
 	if info.Size() != r.Size {
-		return false, fmt.Errorf("%s: %d != %d", i18n.Tr("fetched archive size differs from size specified in index"), info.Size(), r.Size)
+		logrus.Warningf("%s: %d != %d", i18n.Tr("fetched archive size differs from size specified in index"), info.Size(), r.Size)
 	}
-
-	return true, nil
+	return nil
 }
 
 // TestLocalArchiveIntegrity checks for integrity of the local archive.
@@ -106,10 +108,8 @@ func (r *DownloadResource) TestLocalArchiveIntegrity(downloadDir *paths.Path) (b
 		return false, nil
 	}
 
-	if ok, err := r.TestLocalArchiveSize(downloadDir); err != nil {
+	if err := r.TestLocalArchiveSize(downloadDir); err != nil {
 		return false, errors.New(i18n.Tr("testing archive size: %s", err))
-	} else if !ok {
-		return false, nil
 	}
 
 	ok, err := r.TestLocalArchiveChecksum(downloadDir)

internal/arduino/resources/resources_test.go

@@ -82,6 +82,10 @@ func TestDownloadAndChecksums(t *testing.T) {
 	require.NoError(t, err)
 	downloadAndTestChecksum()
 
+	require.NoError(t, r.TestLocalArchiveSize(tmp))
+	r.Size = 500
+	require.NoError(t, r.TestLocalArchiveSize(tmp))
+
 	r.Checksum = ""
 	_, err = r.TestLocalArchiveChecksum(tmp)
 	require.Error(t, err)

internal/integrationtest/core/core_test.go

@@ -1354,3 +1354,15 @@ func TestReferencedCoreBuildAndRuntimeProperties(t *testing.T) {
 		out.ArrayMustContain(jsonEncode("runtime.platform.path=" + corePlatformPath))
 	}
 }
+
+func TestCoreInstallWithWrongArchiveSize(t *testing.T) {
+	// See: https://github.com/arduino/arduino-cli/issues/2332
+	env, cli := integrationtest.CreateArduinoCLIWithEnvironment(t)
+	defer env.CleanUp()
+
+	_, _, err := cli.Run("--additional-urls", "https://raw.githubusercontent.com/geolink/opentracker-arduino-board/bf6158ebab0402db217bfb02ea61461ddc6f2940/package_opentracker_index.json", "core", "update-index")
+	require.NoError(t, err)
+
+	_, _, err = cli.Run("--additional-urls", "https://raw.githubusercontent.com/geolink/opentracker-arduino-board/bf6158ebab0402db217bfb02ea61461ddc6f2940/package_opentracker_index.json", "core", "install", "opentracker:sam@1.0.5")
+	require.NoError(t, err)
+}