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Signed-off-by: Keith Zantow <kzantow@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| package rpm | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strconv" | ||
| "strings" | ||
|
|
||
| "github.com/anchore/syft/internal" | ||
| "github.com/anchore/syft/syft/file" | ||
| rpmdb "github.com/knqyf263/go-rpmdb/pkg" | ||
| "github.com/sassoftware/go-rpmutils" | ||
|
|
||
| "github.com/anchore/syft/syft/artifact" | ||
| "github.com/anchore/syft/syft/pkg" | ||
| "github.com/anchore/syft/syft/source" | ||
| ) | ||
|
|
||
| type FileCataloger struct{} | ||
|
|
||
| // NewFileCataloger returns a new RPM file cataloger object. | ||
| func NewFileCataloger() *FileCataloger { | ||
| return &FileCataloger{} | ||
| } | ||
|
|
||
| // Name returns a string that uniquely describes a cataloger | ||
| func (c *FileCataloger) Name() string { | ||
| return "rpm-file-cataloger" | ||
| } | ||
|
|
||
| // UsesExternalSources indicates that the rpmdb cataloger does not use external sources | ||
| func (c *FileCataloger) UsesExternalSources() bool { | ||
| return false | ||
| } | ||
|
|
||
| // Catalog is given an object to resolve file references and content, this function returns any discovered Packages after analyzing rpm files | ||
| func (c *FileCataloger) Catalog(resolver source.FileResolver) ([]pkg.Package, []artifact.Relationship, error) { | ||
| fileMatches, err := resolver.FilesByGlob("**/*.rpm") | ||
| if err != nil { | ||
| return nil, nil, fmt.Errorf("failed to find rpm files's by glob: %w", err) | ||
| } | ||
|
|
||
| var pkgs []pkg.Package | ||
| for _, location := range fileMatches { | ||
| dbContentReader, err := resolver.FileContentsByLocation(location) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| rpm, err := rpmutils.ReadRpm(dbContentReader) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| nevra, err := rpm.Header.GetNEVRA() | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| licenses, _ := rpm.Header.GetStrings(rpmutils.LICENSE) | ||
| sourceRpm, _ := rpm.Header.GetString(rpmutils.SOURCERPM) | ||
| vendor, _ := rpm.Header.GetString(rpmutils.VENDOR) | ||
| digestAlgorithm := getDigestAlgorithm(rpm.Header) | ||
| size, _ := rpm.Header.InstalledSize() | ||
| files, _ := rpm.Header.GetFiles() | ||
|
|
||
| p := pkg.Package{ | ||
| Name: nevra.Name, | ||
| Version: nevra.Version, | ||
| FoundBy: c.Name(), | ||
| Licenses: licenses, | ||
| Locations: source.NewLocationSet(location), | ||
| Type: pkg.RpmPkg, | ||
| MetadataType: pkg.RpmdbMetadataType, | ||
| Metadata: pkg.RpmdbMetadata{ | ||
| Name: nevra.Name, | ||
| Version: nevra.Version, | ||
| Epoch: parseEpoch(nevra.Epoch), | ||
| Arch: nevra.Arch, | ||
| Release: nevra.Release, | ||
| SourceRpm: sourceRpm, | ||
| Vendor: vendor, | ||
| License: strings.Join(licenses, " AND "), | ||
| Size: int(size), | ||
| Files: mapFiles(files, digestAlgorithm), | ||
| }, | ||
| } | ||
| p.SetID() | ||
| pkgs = append(pkgs, p) | ||
|
|
||
| internal.CloseAndLogError(dbContentReader, location.VirtualPath) | ||
| if err != nil { | ||
| return nil, nil, fmt.Errorf("unable to catalog rpm file=%+v: %w", location.RealPath, err) | ||
| } | ||
| } | ||
|
|
||
| return pkgs, nil, nil | ||
| } | ||
|
|
||
| func getDigestAlgorithm(header *rpmutils.RpmHeader) string { | ||
| digestAlgorithm, _ := header.GetString(rpmutils.FILEDIGESTALGO) | ||
| if digestAlgorithm != "" { | ||
| return digestAlgorithm | ||
| } | ||
| digestAlgorithms, _ := header.GetUint32s(rpmutils.FILEDIGESTALGO) | ||
| if len(digestAlgorithms) > 0 { | ||
| digestAlgo := int(digestAlgorithms[0]) | ||
| return rpmutils.GetFileAlgoName(digestAlgo) | ||
| } | ||
| return "" | ||
| } | ||
|
|
||
| func mapFiles(files []rpmutils.FileInfo, digestAlgorithm string) []pkg.RpmdbFileRecord { | ||
| var out []pkg.RpmdbFileRecord | ||
| for _, f := range files { | ||
| digest := file.Digest{} | ||
| if f.Digest() != "" { | ||
| digest = file.Digest{ | ||
| Algorithm: digestAlgorithm, | ||
| Value: f.Digest(), | ||
| } | ||
| } | ||
| out = append(out, pkg.RpmdbFileRecord{ | ||
| Path: f.Name(), | ||
| Mode: pkg.RpmdbFileMode(f.Mode()), | ||
| Size: int(f.Size()), | ||
| Digest: digest, | ||
| UserName: f.UserName(), | ||
| GroupName: f.GroupName(), | ||
| Flags: rpmdb.FileFlags(f.Flags()).String(), | ||
| }) | ||
| } | ||
| return out | ||
| } | ||
|
|
||
| func parseEpoch(epoch string) *int { | ||
| i, err := strconv.Atoi(epoch) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
| return &i | ||
| } |
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