Fix: map license URLs to SPDX IDs for machine readable format

Signed-off-by: Avadhut03 <avadhutkul60@gmail.com>

internal/spdxlicense/license_list.go

@@ -1426,6 +1426,8 @@ var licenseIDs = map[string]string{
 var urlToLicense = map[string]string{
 	"ftp://ftp.tin.org/pub/news/utils/newsx/newsx-1.6.tar.gz":                                                             "Zeeff",
 	"http://apache.org/licenses/LICENSE-1.1":                                                                              "Apache-1.1",
+    "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html": "LGPL-2.1-only",
+    "http://www.eclipse.org/org/documents/edl-v10.php": "BSD-3-Clause",
 	"http://artlibre.org/licence/lal/licence-art-libre-12/":                                                               "LAL-1.2",
 	"http://bits.netizen.com.au/licenses/NOSL/nosl.txt":                                                                   "NOSL",
 	"http://bzip.org/1.0.5/bzip2-manual-1.0.5.html":                                                                       "bzip2-1.0.6",

internal/spdxlicense/license_url_test.go

@@ -53,6 +53,18 @@ func TestLicenseByURL(t *testing.T) {
 			wantID:    "",
 			wantFound: false,
 		},
+		{
+			name:      "EPL-1.0 license URL",
+			url:       "http://www.eclipse.org/legal/epl-v10.html",
+			wantID:    "EPL-1.0",
+			wantFound: true,
+		},
+		{
+			name:      "LGPL-2.1-only license URL",
+			url:       "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html",
+			wantID:    "LGPL-2.1-only",
+			wantFound: true,
+		},
 		{
 			name:      "Empty URL",
 			url:       "",

syft/pkg/cataloger/java/archive_parser.go

@@ -25,6 +25,7 @@ import (
 	"github.com/anchore/syft/syft/pkg"
 	"github.com/anchore/syft/syft/pkg/cataloger/generic"
 	"github.com/anchore/syft/syft/pkg/cataloger/java/internal/maven"
+	"github.com/anchore/syft/internal/spdxlicense"
 )
 
 var archiveFormatGlobs = []string{
@@ -375,6 +376,11 @@ func toPkgLicenses(ctx context.Context, location *file.Location, licenses []mave
 		if name == "" && url == "" {
 			continue
 		}
+		if licInfo, ok := spdxlicense.LicenseByURL(url); ok {
+			if name == "" {
+				name = licInfo.ID // use detected license ID if no name given
+			}
+		}
 		out = append(out, pkg.NewLicenseFromFieldsWithContext(ctx, name, url, location))
 	}
 	return out