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package syncpki
import (
"crypto/sha256"
"fmt"
"io/ioutil"
"os"
"strings"
"time"
librpki "github.com/cloudflare/cfrpki/validator/lib"
"github.com/cloudflare/cfrpki/validator/pki"
log "github.com/sirupsen/logrus"
)
type LocalFetch struct {
Basepath string
MapDirectory map[string]string
repositories map[string]time.Time
}
func NewLocalFetch(basepath string) *LocalFetch {
return &LocalFetch{
Basepath: basepath,
MapDirectory: map[string]string{RsyncProtoPrefix: basepath},
repositories: make(map[string]time.Time),
}
}
func (s *LocalFetch) SetRepositories(repositories map[string]time.Time) {
s.repositories = repositories
}
func GetLocalPath(pathRep string, replace map[string]string) string {
sep := fmt.Sprintf("%c", os.PathSeparator)
for repKey, repVal := range replace {
if !strings.HasSuffix(repVal, sep) {
repVal += sep
}
pathRep = strings.Replace(pathRep, repKey, repVal, -1)
}
return pathRep
}
func ReplacePath(file *pki.PKIFile, replace map[string]string) string {
pathRep := file.ComputePath()
pathRep = GetLocalPath(pathRep, replace)
return pathRep
}
func FetchFile(path string, derEncoding bool) ([]byte, []byte, error) {
fc, err := ioutil.ReadFile(path)
if err != nil {
return nil, nil, fmt.Errorf("Unable to read file %q: %v", path, err)
}
tmpSha265 := sha256.Sum256(fc)
sha256 := tmpSha265[:]
if !derEncoding {
return fc, sha256, nil
}
fc, err = librpki.BER2DER(fc)
if err != nil {
return nil, nil, fmt.Errorf("librpki.BER2DER failed: %v", err)
}
return fc, sha256, nil
}
func ParseMapDirectory(mapdir string) map[string]string {
mapDirectoryFinal := make(map[string]string)
mapdirsSplit := strings.Split(mapdir, ",")
for _, mapdirU := range mapdirsSplit {
mapdirUSplit := strings.Split(mapdirU, "=")
if len(mapdirUSplit) == 2 {
mapDirectoryFinal[mapdirUSplit[0]] = mapdirUSplit[1]
}
}
return mapDirectoryFinal
}
func (s *LocalFetch) GetFile(file *pki.PKIFile) (*pki.SeekFile, error) {
return s.GetFileConv(file, file.Type != pki.TYPE_TAL)
}
func (s *LocalFetch) GetFileConv(file *pki.PKIFile, derEncoding bool) (*pki.SeekFile, error) {
newPath := ReplacePath(file, s.MapDirectory)
log.Debugf("Fetching %v->%v", file.Path, newPath)
data, sha256, err := FetchFile(newPath, derEncoding)
if os.IsNotExist(err) {
return nil, nil
}
if err != nil {
rsyncBase, _, errExtract := ExtractRsyncDomainModule(file.Path)
if errExtract != nil {
log.Errorf("error extracting rsync of %s: %v", file.Path, errExtract)
}
if _, ok := s.repositories[rsyncBase]; !ok {
log.Debugf("Got %v but repository not yet synchronized", err)
return nil, nil
}
}
return &pki.SeekFile{
File: file.Path,
Data: data,
Sha256: sha256,
}, err
}
func (s *LocalFetch) GetRepository(file *pki.PKIFile, callback pki.CallbackExplore) error {
newPath := GetLocalPath(file.Repo, s.MapDirectory)
files, err := ioutil.ReadDir(file.Repo)
if err != nil {
return fmt.Errorf("Unable to read dir %q: %v", file.Repo, err)
}
for _, fileDir := range files {
if fileDir == nil || fileDir.IsDir() {
continue
}
data, sha256, err := FetchFile(newPath+fileDir.Name(), true)
if err != nil {
return fmt.Errorf("FetchFile failed: %v", err)
}
fullnameSplit := strings.Split(fileDir.Name(), ".")
extension := pki.TYPE_UNKNOWN
if len(fullnameSplit) > 0 {
switch fullnameSplit[len(fullnameSplit)-1] {
case "crl":
extension = pki.TYPE_CRL
case "cer":
extension = pki.TYPE_CER
case "mft":
extension = pki.TYPE_MFT
case "roa":
extension = pki.TYPE_ROA
}
}
callback(
&pki.PKIFile{
Parent: file,
Type: extension,
Repo: file.Repo,
Path: file.Repo + fileDir.Name(),
},
&pki.SeekFile{
File: file.Path,
Data: data,
Sha256: sha256,
}, false)
}
return nil
}
|
