mirror of
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299 lines
8.3 KiB
Go
299 lines
8.3 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package rpm
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import (
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"fmt"
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"io"
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"strings"
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"code.gitea.io/gitea/modules/timeutil"
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"code.gitea.io/gitea/modules/validation"
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"github.com/sassoftware/go-rpmutils"
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)
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const (
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PropertyMetadata = "rpm.metadata"
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PropertyGroup = "rpm.group"
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PropertyArchitecture = "rpm.architecture"
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SettingKeyPrivate = "rpm.key.private"
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SettingKeyPublic = "rpm.key.public"
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RepositoryPackage = "_rpm"
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RepositoryVersion = "_repository"
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)
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const (
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// Can't use the syscall constants because they are not available for windows build.
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sIFMT = 0xf000
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sIFDIR = 0x4000
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sIXUSR = 0x40
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sIXGRP = 0x8
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sIXOTH = 0x1
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)
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// https://rpm-software-management.github.io/rpm/manual/spec.html
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// https://refspecs.linuxbase.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/pkgformat.html
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type Package struct {
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Name string
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Version string
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VersionMetadata *VersionMetadata
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FileMetadata *FileMetadata
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}
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type VersionMetadata struct {
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License string `json:"license,omitempty"`
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ProjectURL string `json:"project_url,omitempty"`
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Summary string `json:"summary,omitempty"`
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Description string `json:"description,omitempty"`
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}
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type FileMetadata struct {
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Architecture string `json:"architecture,omitempty"`
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Epoch string `json:"epoch,omitempty"`
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Version string `json:"version,omitempty"`
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Release string `json:"release,omitempty"`
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Vendor string `json:"vendor,omitempty"`
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Group string `json:"group,omitempty"`
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Packager string `json:"packager,omitempty"`
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SourceRpm string `json:"source_rpm,omitempty"`
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BuildHost string `json:"build_host,omitempty"`
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BuildTime uint64 `json:"build_time,omitempty"`
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FileTime uint64 `json:"file_time,omitempty"`
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InstalledSize uint64 `json:"installed_size,omitempty"`
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ArchiveSize uint64 `json:"archive_size,omitempty"`
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Provides []*Entry `json:"provide,omitempty"`
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Requires []*Entry `json:"require,omitempty"`
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Conflicts []*Entry `json:"conflict,omitempty"`
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Obsoletes []*Entry `json:"obsolete,omitempty"`
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Files []*File `json:"files,omitempty"`
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Changelogs []*Changelog `json:"changelogs,omitempty"`
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}
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type Entry struct {
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Name string `json:"name" xml:"name,attr"`
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Flags string `json:"flags,omitempty" xml:"flags,attr,omitempty"`
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Version string `json:"version,omitempty" xml:"ver,attr,omitempty"`
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Epoch string `json:"epoch,omitempty" xml:"epoch,attr,omitempty"`
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Release string `json:"release,omitempty" xml:"rel,attr,omitempty"`
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}
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type File struct {
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Path string `json:"path" xml:",chardata"`
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Type string `json:"type,omitempty" xml:"type,attr,omitempty"`
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IsExecutable bool `json:"is_executable" xml:"-"`
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}
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type Changelog struct {
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Author string `json:"author,omitempty" xml:"author,attr"`
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Date timeutil.TimeStamp `json:"date,omitempty" xml:"date,attr"`
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Text string `json:"text,omitempty" xml:",chardata"`
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}
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// ParsePackage parses the RPM package file
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func ParsePackage(r io.Reader) (*Package, error) {
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rpm, err := rpmutils.ReadRpm(r)
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if err != nil {
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return nil, err
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}
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nevra, err := rpm.Header.GetNEVRA()
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if err != nil {
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return nil, err
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}
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version := fmt.Sprintf("%s-%s", nevra.Version, nevra.Release)
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if nevra.Epoch != "" && nevra.Epoch != "0" {
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version = fmt.Sprintf("%s-%s", nevra.Epoch, version)
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}
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p := &Package{
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Name: nevra.Name,
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Version: version,
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VersionMetadata: &VersionMetadata{
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Summary: getString(rpm.Header, rpmutils.SUMMARY),
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Description: getString(rpm.Header, rpmutils.DESCRIPTION),
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License: getString(rpm.Header, rpmutils.LICENSE),
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ProjectURL: getString(rpm.Header, rpmutils.URL),
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},
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FileMetadata: &FileMetadata{
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Architecture: nevra.Arch,
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Epoch: nevra.Epoch,
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Version: nevra.Version,
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Release: nevra.Release,
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Vendor: getString(rpm.Header, rpmutils.VENDOR),
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Group: getString(rpm.Header, rpmutils.GROUP),
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Packager: getString(rpm.Header, rpmutils.PACKAGER),
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SourceRpm: getString(rpm.Header, rpmutils.SOURCERPM),
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BuildHost: getString(rpm.Header, rpmutils.BUILDHOST),
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BuildTime: getUInt64(rpm.Header, rpmutils.BUILDTIME),
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FileTime: getUInt64(rpm.Header, rpmutils.FILEMTIMES),
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InstalledSize: getUInt64(rpm.Header, rpmutils.SIZE),
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ArchiveSize: getUInt64(rpm.Header, rpmutils.SIG_PAYLOADSIZE),
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Provides: getEntries(rpm.Header, rpmutils.PROVIDENAME, rpmutils.PROVIDEVERSION, rpmutils.PROVIDEFLAGS),
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Requires: getEntries(rpm.Header, rpmutils.REQUIRENAME, rpmutils.REQUIREVERSION, rpmutils.REQUIREFLAGS),
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Conflicts: getEntries(rpm.Header, rpmutils.CONFLICTNAME, rpmutils.CONFLICTVERSION, rpmutils.CONFLICTFLAGS),
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Obsoletes: getEntries(rpm.Header, rpmutils.OBSOLETENAME, rpmutils.OBSOLETEVERSION, rpmutils.OBSOLETEFLAGS),
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Files: getFiles(rpm.Header),
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Changelogs: getChangelogs(rpm.Header),
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},
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}
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if !validation.IsValidURL(p.VersionMetadata.ProjectURL) {
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p.VersionMetadata.ProjectURL = ""
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}
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return p, nil
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}
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func getString(h *rpmutils.RpmHeader, tag int) string {
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values, err := h.GetStrings(tag)
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if err != nil || len(values) < 1 {
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return ""
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}
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return values[0]
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}
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func getUInt64(h *rpmutils.RpmHeader, tag int) uint64 {
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values, err := h.GetUint64s(tag)
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if err != nil || len(values) < 1 {
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return 0
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}
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return values[0]
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}
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func getEntries(h *rpmutils.RpmHeader, namesTag, versionsTag, flagsTag int) []*Entry {
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names, err := h.GetStrings(namesTag)
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if err != nil || len(names) == 0 {
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return nil
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}
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flags, err := h.GetUint64s(flagsTag)
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if err != nil || len(flags) == 0 {
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return nil
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}
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versions, err := h.GetStrings(versionsTag)
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if err != nil || len(versions) == 0 {
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return nil
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}
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if len(names) != len(flags) || len(names) != len(versions) {
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return nil
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}
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entries := make([]*Entry, 0, len(names))
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for i := range names {
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e := &Entry{
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Name: names[i],
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}
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flags := flags[i]
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if (flags&rpmutils.RPMSENSE_GREATER) != 0 && (flags&rpmutils.RPMSENSE_EQUAL) != 0 {
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e.Flags = "GE"
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} else if (flags&rpmutils.RPMSENSE_LESS) != 0 && (flags&rpmutils.RPMSENSE_EQUAL) != 0 {
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e.Flags = "LE"
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} else if (flags & rpmutils.RPMSENSE_GREATER) != 0 {
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e.Flags = "GT"
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} else if (flags & rpmutils.RPMSENSE_LESS) != 0 {
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e.Flags = "LT"
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} else if (flags & rpmutils.RPMSENSE_EQUAL) != 0 {
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e.Flags = "EQ"
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}
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version := versions[i]
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if version != "" {
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parts := strings.Split(version, "-")
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versionParts := strings.Split(parts[0], ":")
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if len(versionParts) == 2 {
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e.Version = versionParts[1]
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e.Epoch = versionParts[0]
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} else {
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e.Version = versionParts[0]
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e.Epoch = "0"
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}
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if len(parts) > 1 {
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e.Release = parts[1]
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}
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}
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entries = append(entries, e)
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}
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return entries
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}
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func getFiles(h *rpmutils.RpmHeader) []*File {
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baseNames, _ := h.GetStrings(rpmutils.BASENAMES)
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dirNames, _ := h.GetStrings(rpmutils.DIRNAMES)
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dirIndexes, _ := h.GetUint32s(rpmutils.DIRINDEXES)
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fileFlags, _ := h.GetUint32s(rpmutils.FILEFLAGS)
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fileModes, _ := h.GetUint32s(rpmutils.FILEMODES)
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files := make([]*File, 0, len(baseNames))
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for i := range baseNames {
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if len(dirIndexes) <= i {
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continue
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}
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dirIndex := dirIndexes[i]
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if len(dirNames) <= int(dirIndex) {
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continue
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}
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var fileType string
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var isExecutable bool
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if i < len(fileFlags) && (fileFlags[i]&rpmutils.RPMFILE_GHOST) != 0 {
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fileType = "ghost"
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} else if i < len(fileModes) {
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if (fileModes[i] & sIFMT) == sIFDIR {
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fileType = "dir"
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} else {
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mode := fileModes[i] & ^uint32(sIFMT)
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isExecutable = (mode&sIXUSR) != 0 || (mode&sIXGRP) != 0 || (mode&sIXOTH) != 0
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}
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}
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files = append(files, &File{
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Path: dirNames[dirIndex] + baseNames[i],
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Type: fileType,
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IsExecutable: isExecutable,
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})
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}
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return files
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}
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func getChangelogs(h *rpmutils.RpmHeader) []*Changelog {
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texts, err := h.GetStrings(rpmutils.CHANGELOGTEXT)
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if err != nil || len(texts) == 0 {
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return nil
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}
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authors, err := h.GetStrings(rpmutils.CHANGELOGNAME)
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if err != nil || len(authors) == 0 {
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return nil
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}
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times, err := h.GetUint32s(rpmutils.CHANGELOGTIME)
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if err != nil || len(times) == 0 {
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return nil
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}
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if len(texts) != len(authors) || len(texts) != len(times) {
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return nil
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}
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changelogs := make([]*Changelog, 0, len(texts))
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for i := range texts {
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changelogs = append(changelogs, &Changelog{
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Author: authors[i],
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Date: timeutil.TimeStamp(times[i]),
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Text: texts[i],
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})
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}
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return changelogs
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}
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