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utils.go
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utils.go
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package goseaweedfs
import (
"context"
"crypto/md5"
"encoding/base64"
"io"
"io/ioutil"
"net/http"
"net/url"
"os"
"path/filepath"
"runtime"
"strings"
workerpool "github.com/linxGnu/gumble/worker-pool"
)
func createWorkerPool() *workerpool.Pool {
return workerpool.NewPool(context.Background(), workerpool.Option{
NumberWorker: runtime.NumCPU() << 1,
})
}
func parseURI(uri string) (u *url.URL, err error) {
u, err = url.Parse(uri)
if err == nil && u.Scheme == "" {
u.Scheme = "http"
}
return
}
func encodeURI(base url.URL, path string, args url.Values) string {
base.Path += path
query := base.Query()
args = normalize(args, "", "")
for k, vs := range args {
for _, v := range vs {
query.Add(k, v)
}
}
base.RawQuery = query.Encode()
return base.String()
}
func valid(c rune) bool {
return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || '.' == c || '-' == c || '_' == c
}
func normalizeName(st string) string {
for _, _c := range st {
if !valid(_c) {
var sb strings.Builder
sb.Grow(len(st))
for _, c := range st {
if valid(c) {
_, _ = sb.WriteRune(c)
}
}
return sb.String()
}
}
return st
}
func drainAndClose(body io.ReadCloser) {
_, _ = io.Copy(ioutil.Discard, body)
_ = body.Close()
}
func normalize(values url.Values, collection, ttl string) url.Values {
if values == nil {
values = make(url.Values)
}
if len(collection) > 0 {
values.Set(ParamCollection, collection)
}
if len(ttl) > 0 {
values.Set(ParamTTL, ttl)
}
return values
}
func readAll(r *http.Response) (body []byte, statusCode int, err error) {
statusCode = r.StatusCode
body, err = ioutil.ReadAll(r.Body)
r.Body.Close()
return
}
func isDir(path string) bool {
s, err := os.Stat(path)
if err != nil {
return false
}
return s.IsDir()
}
func listFilesRecursive(dirPath string) (files []FileInfo, err error) {
if err := filepath.Walk(dirPath, func(path string, info os.FileInfo, err error) error {
if !isDir(path) {
f, err := os.Open(path)
if err != nil {
return err
}
md5sum, err := getFileMd5sum(path)
if err != nil {
return err
}
path, err = filepath.Abs(path)
if err != nil {
return err
}
files = append(files, FileInfo{
Name: f.Name(),
Path: path,
Md5: md5sum,
})
}
return nil
}); err != nil {
return files, err
}
return
}
func ListLocalFilesRecursive(dirPath string) (files []FileInfo, err error) {
return listFilesRecursive(dirPath)
}
func getFileName(fullPath string) (fileName string) {
// get file name
arr := strings.Split(fullPath, "/")
fileName = arr[len(arr)-1]
return fileName
}
func getFileExtension(fileName string) (extension string) {
// get file extension
if strings.HasPrefix(fileName, ".") {
fileName = fileName[1:(len(fileName) - 1)]
}
arr := strings.Split(fileName, ".")
if len(arr) > 1 {
extension = arr[len(arr)-1]
}
return extension
}
func getFileWithExtendedFields(file FilerFileInfo) (res FilerFileInfo) {
// get isDir
file.IsDir = file.Chunks == nil
// get name
file.Name = getFileName(file.FullPath)
// get file extension
if !file.IsDir {
file.Extension = getFileExtension(file.Name)
}
return file
}
func getFileMd5sum(filePath string) (md5sum string, err error) {
data, err := ioutil.ReadFile(filePath)
if err != nil {
return md5sum, err
}
return getBytesMd5sum(data)
}
func GetFileMd5sum(filePath string) (md5sum string, err error) {
return getFileMd5sum(filePath)
}
func getBytesMd5sum(data []byte) (md5sum string, err error) {
h := md5.New()
content := strings.NewReader(string(data))
_, err = content.WriteTo(h)
if err != nil {
return md5sum, err
}
md5sum = base64.StdEncoding.EncodeToString(h.Sum(nil))
return md5sum, nil
}
func GetBytesMd5sum(data []byte) (md5sum string, err error) {
return getBytesMd5sum(data)
}