func fpridentify(s *siegfried.Siegfried, path string) []byte {
fi, err := os.Open(path)
defer fi.Close()
if err != nil {
return reply("error: failed to open " + path + "; got " + err.Error())
}
c, err := s.Identify(path, fi)
if err != nil {
return reply("error: failed to scan " + path + "; got " + err.Error())
}
var ids []string
var warn string
for i := range c {
ids = append(ids, i.String())
if !i.Known() {
warn = i.(*pronom.Identification).Warning
}
}
switch len(ids) {
case 0:
return reply("error: scanning " + path + ": no puids returned")
case 1:
if warn != "" {
return reply("error: format unknown; got " + warn)
}
return reply(ids[0])
default:
return reply("error: multiple formats returned; got " + strings.Join(ids, ", "))
}
}
func identifyT(s *siegfried.Siegfried, p string) ([]string, error) {
ids := make([]string, 0)
file, err := os.Open(p)
if err != nil {
return nil, fmt.Errorf("failed to open %v, got: %v", p, err)
}
t := time.Now()
c, _ := s.Identify(file, p, "")
for _, i := range c {
ids = append(ids, i.String())
}
err = file.Close()
if err != nil {
return nil, err
}
if len(ids) > 10 {
fmt.Printf("test file %s has %d ids\n", p, len(ids))
}
tooLong := time.Millisecond * 500
elapsed := time.Since(t)
if elapsed > tooLong {
fmt.Printf("[WARNING] time to match %s was %s\n", p, elapsed.String())
}
return ids, nil
}
func fpridentify(s *siegfried.Siegfried, path string) []byte {
fi, err := os.Open(path)
defer fi.Close()
if err != nil {
return reply("error: failed to open " + path + "; got " + err.Error())
}
ids, err := s.Identify(fi, path, "")
if ids == nil {
return reply("error: failed to scan " + path + "; got " + err.Error())
}
switch len(ids) {
case 0:
return reply("error: scanning " + path + ": no formats returned")
case 1:
if !ids[0].Known() {
return reply("error: format unknown; got " + ids[0].Warn())
}
return reply(ids[0].String())
default:
strs := make([]string, len(ids))
for i, v := range ids {
strs[i] = v.String()
}
return reply("error: multiple formats returned; got " + strings.Join(strs, ", "))
}
}
func identifyRdr(w writer, s *siegfried.Siegfried, r io.Reader, sz int64, path, mime, mod string) {
lg.set(path)
c, err := s.Identify(r, path, mime)
lg.err(err)
if c == nil {
w.writeFile(path, sz, mod, nil, err, nil)
lg.reset()
return
}
var b *siegreader.Buffer
var cs []byte
if checksum != nil {
b = s.Buffer()
var i int64
l := checksum.BlockSize()
for ; ; i += int64(l) {
buf, _ := b.Slice(i, l)
if buf == nil {
break
}
checksum.Write(buf)
}
cs = checksum.Sum(nil)
checksum.Reset()
}
a := w.writeFile(path, sz, mod, cs, err, idChan(c))
lg.reset()
if !*archive || a == config.None {
return
}
var d decompressor
if b == nil {
b = s.Buffer()
}
switch a {
case config.Zip:
d, err = newZip(siegreader.ReaderFrom(b), path, sz)
case config.Gzip:
d, err = newGzip(b, path)
case config.Tar:
d, err = newTar(siegreader.ReaderFrom(b), path)
case config.ARC:
d, err = newARC(siegreader.ReaderFrom(b), path)
case config.WARC:
d, err = newWARC(siegreader.ReaderFrom(b), path)
}
if err != nil {
writeError(w, path, sz, mod, fmt.Errorf("failed to decompress, got: %v", err))
return
}
for err = d.next(); err == nil; err = d.next() {
if *droido {
for _, v := range d.dirs() {
w.writeFile(v, -1, "", nil, nil, nil)
}
}
identifyRdr(w, s, d.reader(), d.size(), d.path(), d.mime(), d.mod())
}
}
func identify(s *siegfried.Siegfried) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
mime, wr, nr := parseRequest(w, r)
if r.Method == "POST" {
f, h, err := r.FormFile("file")
if err != nil {
handleErr(w, http.StatusNotFound, err)
return
}
defer f.Close()
var sz int64
var mod string
osf, ok := f.(*os.File)
if ok {
info, err := osf.Stat()
if err != nil {
handleErr(w, http.StatusInternalServerError, err)
}
sz = info.Size()
mod = info.ModTime().String()
} else {
sz = r.ContentLength
}
w.Header().Set("Content-Type", mime)
wr.writeHead(s)
c, err := s.Identify(h.Filename, f)
if c == nil {
wr.writeFile(h.Filename, sz, mod, nil, fmt.Errorf("failed to identify %s, got: %v", h.Filename, err), nil)
return
}
wr.writeFile(h.Filename, sz, mod, nil, err, idChan(c))
wr.writeTail()
return
} else {
path, err := decodePath(r.URL.Path)
if err != nil {
handleErr(w, http.StatusNotFound, err)
return
}
info, err := os.Stat(path)
if err != nil {
handleErr(w, http.StatusNotFound, err)
return
}
w.Header().Set("Content-Type", mime)
wr.writeHead(s)
if info.IsDir() {
multiIdentifyS(wr, s, path, nr)
wr.writeTail()
return
}
identifyFile(wr, s, path, info.Size(), info.ModTime().String())
wr.writeTail()
return
}
}
}
func multiIdentifyP(w writer, s *siegfried.Siegfried, r string, norecurse bool) error {
wg := &sync.WaitGroup{}
runtime.GOMAXPROCS(PROCS)
resc := make(chan chan res, *multi)
go printer(w, resc, wg)
wf := func(path string, info os.FileInfo, err error) error {
if err != nil {
return fmt.Errorf("walking %s; got %v", path, err)
}
if info.IsDir() {
if norecurse && path != r {
return filepath.SkipDir
}
if *droido {
wg.Add(1)
rchan := make(chan res, 1)
resc <- rchan
go func() {
rchan <- res{path, -1, info.ModTime().String(), nil, nil} // write directory with a -1 size for droid output only
}()
}
return nil
}
wg.Add(1)
rchan := make(chan res, 1)
resc <- rchan
go func() {
f, err := os.Open(path)
if err != nil {
rchan <- res{path, 0, "", nil, err.(*os.PathError).Err} // return summary error only
return
}
c, err := s.Identify(f, path, "")
if c == nil {
f.Close()
rchan <- res{path, 0, "", nil, err}
return
}
ids := makeIdSlice(idChan(c))
f.Close()
rchan <- res{path, info.Size(), info.ModTime().Format(time.RFC3339), ids, err}
}()
return nil
}
err := filepath.Walk(r, wf)
wg.Wait()
close(resc)
return err
}
func identifyT(s *siegfried.Siegfried, p string) ([]string, error) {
ids := make([]string, 0)
file, err := os.Open(p)
if err != nil {
return nil, fmt.Errorf("failed to open %v, got: %v", p, err)
}
c, err := s.Identify(p, file)
if c == nil {
return nil, fmt.Errorf("failed to identify %v, got: %v", p, err)
}
for i := range c {
ids = append(ids, i.String())
}
err = file.Close()
if err != nil {
return nil, err
}
return ids, nil
}
func identifyRdr(w writer, s *siegfried.Siegfried, r io.Reader, path string, sz int64, mod string) {
c, err := s.Identify(path, r)
if c == nil {
w.writeFile(path, sz, mod, nil, fmt.Errorf("failed to identify %s, got: %v", path, err), nil)
return
}
var b siegreader.Buffer
var cs []byte
if checksum != nil {
b = s.Buffer()
checksum.Write(siegreader.Bytes(b)) // ignore error returned here
cs = checksum.Sum(nil)
checksum.Reset()
}
a := w.writeFile(path, sz, mod, cs, err, idChan(c))
if !*archive || a == config.None {
return
}
var d decompressor
if b == nil {
b = s.Buffer()
}
switch a {
case config.Zip:
d, err = newZip(siegreader.ReaderFrom(b), path, sz)
case config.Gzip:
d, err = newGzip(b, path)
case config.Tar:
d, err = newTar(siegreader.ReaderFrom(b), path)
}
if err != nil {
w.writeFile(path, sz, mod, nil, fmt.Errorf("failed to decompress %s, got: %v", path, err), nil)
return
}
for err = d.next(); err == nil; err = d.next() {
if *droido {
for _, v := range d.dirs() {
w.writeFile(v, -1, "", nil, nil, nil)
}
}
identifyRdr(w, s, d.reader(), d.path(), d.size(), d.mod())
}
}
func multiIdentifyP(w writer, s *siegfried.Siegfried, r string, norecurse bool) error {
wg := &sync.WaitGroup{}
runtime.GOMAXPROCS(PROCS)
resc := make(chan chan res, *multi)
go printer(w, resc, wg)
var wf filepath.WalkFunc
var origPath string
wf = func(path string, info os.FileInfo, err error) error {
var retry, origReset bool
if err != nil {
info, err = retryStat(path, err)
if err != nil {
return fmt.Errorf("walking %s; got %v", path, err) // fatal: return error and quit
}
retry = true
}
if info.IsDir() {
if norecurse && path != r {
return filepath.SkipDir
}
if *droido {
wg.Add(1)
rchan := make(chan res, 1)
resc <- rchan
go func() {
rchan <- res{path, -1, info.ModTime().String(), nil, nil} // write directory with a -1 size for droid output only
}()
}
if retry {
if origPath == "" {
origPath = path
origReset = true
}
err = filepath.Walk(longpath(path), wf)
if origReset {
origPath = ""
}
return filepath.SkipDir
}
return nil
}
path = shortpath(path, origPath)
wg.Add(1)
rchan := make(chan res, 1)
resc <- rchan
go func() {
f, err := os.Open(path)
if err != nil {
f, err = retryOpen(path, err)
if err != nil {
rchan <- res{path, 0, "", nil, err}
return
}
}
c, err := s.Identify(f, path, "")
if c == nil {
f.Close()
rchan <- res{path, 0, "", nil, err}
return
}
ids := makeIdSlice(idChan(c))
f.Close()
rchan <- res{path, info.Size(), info.ModTime().Format(time.RFC3339), ids, err}
}()
return nil
}
err := filepath.Walk(r, wf)
wg.Wait()
close(resc)
return err
}