You've already forked CasaOS
mirror of
https://github.com/IceWhaleTech/CasaOS.git
synced 2025-07-15 23:54:17 +02:00
Update file count (#966)
This commit is contained in:
@ -2,6 +2,7 @@ package file
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
@ -596,3 +597,171 @@ func NameAccumulation(name string, dir string) string {
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// / 解析多个文件上传中,每个具体的文件的信息
|
||||
// type FileHeader struct {
|
||||
// ContentDisposition string
|
||||
// Name string
|
||||
// FileName string
|
||||
// ///< 文件名
|
||||
// ContentType string
|
||||
// ContentLength int64
|
||||
// }
|
||||
|
||||
// / 解析描述文件信息的头部
|
||||
// / @return FileHeader 文件名等信息的结构体
|
||||
// / @return bool 解析成功还是失败
|
||||
func ParseFileHeader(h []byte, boundary []byte) (map[string]string, bool) {
|
||||
arr := bytes.Split(h, boundary)
|
||||
//var out_header FileHeader
|
||||
//out_header.ContentLength = -1
|
||||
const (
|
||||
CONTENT_DISPOSITION = "Content-Disposition: "
|
||||
NAME = "name=\""
|
||||
FILENAME = "filename=\""
|
||||
CONTENT_TYPE = "Content-Type: "
|
||||
CONTENT_LENGTH = "Content-Length: "
|
||||
)
|
||||
result := make(map[string]string)
|
||||
for _, item := range arr {
|
||||
|
||||
tarr := bytes.Split(item, []byte(";"))
|
||||
if len(tarr) != 2 {
|
||||
continue
|
||||
}
|
||||
|
||||
tbyte := tarr[1]
|
||||
fmt.Println(string(tbyte))
|
||||
tbyte = bytes.ReplaceAll(tbyte, []byte("\r\n--"), []byte(""))
|
||||
tbyte = bytes.ReplaceAll(tbyte, []byte("name=\""), []byte(""))
|
||||
tempArr := bytes.Split(tbyte, []byte("\"\r\n\r\n"))
|
||||
if len(tempArr) != 2 {
|
||||
continue
|
||||
}
|
||||
bytes.HasPrefix(item, []byte("name="))
|
||||
result[strings.TrimSpace(string(tempArr[0]))] = strings.TrimSpace(string(tempArr[1]))
|
||||
}
|
||||
// for _, item := range arr {
|
||||
// if bytes.HasPrefix(item, []byte(CONTENT_DISPOSITION)) {
|
||||
// l := len(CONTENT_DISPOSITION)
|
||||
// arr1 := bytes.Split(item[l:], []byte("; "))
|
||||
// out_header.ContentDisposition = string(arr1[0])
|
||||
// if bytes.HasPrefix(arr1[1], []byte(NAME)) {
|
||||
// out_header.Name = string(arr1[1][len(NAME) : len(arr1[1])-1])
|
||||
// }
|
||||
// l = len(arr1[2])
|
||||
// if bytes.HasPrefix(arr1[2], []byte(FILENAME)) && arr1[2][l-1] == 0x22 {
|
||||
// out_header.FileName = string(arr1[2][len(FILENAME) : l-1])
|
||||
// }
|
||||
// } else if bytes.HasPrefix(item, []byte(CONTENT_TYPE)) {
|
||||
// l := len(CONTENT_TYPE)
|
||||
// out_header.ContentType = string(item[l:])
|
||||
// } else if bytes.HasPrefix(item, []byte(CONTENT_LENGTH)) {
|
||||
// l := len(CONTENT_LENGTH)
|
||||
// s := string(item[l:])
|
||||
// content_length, err := strconv.ParseInt(s, 10, 64)
|
||||
// if err != nil {
|
||||
// log.Printf("content length error:%s", string(item))
|
||||
// return out_header, false
|
||||
// } else {
|
||||
// out_header.ContentLength = content_length
|
||||
// }
|
||||
// } else {
|
||||
// log.Printf("unknown:%s\n", string(item))
|
||||
// }
|
||||
// }
|
||||
//fmt.Println(result)
|
||||
// if len(out_header.FileName) == 0 {
|
||||
// return out_header, false
|
||||
// }
|
||||
return result, true
|
||||
}
|
||||
|
||||
// / 从流中一直读到文件的末位
|
||||
// / @return []byte 没有写到文件且又属于下一个文件的数据
|
||||
// / @return bool 是否已经读到流的末位了
|
||||
// / @return error 是否发生错误
|
||||
func ReadToBoundary(boundary []byte, stream io.ReadCloser, target io.WriteCloser) ([]byte, bool, error) {
|
||||
read_data := make([]byte, 1024*8)
|
||||
read_data_len := 0
|
||||
buf := make([]byte, 1024*4)
|
||||
b_len := len(boundary)
|
||||
reach_end := false
|
||||
for !reach_end {
|
||||
read_len, err := stream.Read(buf)
|
||||
if err != nil {
|
||||
if err != io.EOF && read_len <= 0 {
|
||||
return nil, true, err
|
||||
}
|
||||
reach_end = true
|
||||
}
|
||||
//todo: 下面这一句很蠢,值得优化
|
||||
copy(read_data[read_data_len:], buf[:read_len]) //追加到另一块buffer,仅仅只是为了搜索方便
|
||||
read_data_len += read_len
|
||||
if read_data_len < b_len+4 {
|
||||
continue
|
||||
}
|
||||
loc := bytes.Index(read_data[:read_data_len], boundary)
|
||||
if loc >= 0 {
|
||||
//找到了结束位置
|
||||
target.Write(read_data[:loc-4])
|
||||
return read_data[loc:read_data_len], reach_end, nil
|
||||
}
|
||||
target.Write(read_data[:read_data_len-b_len-4])
|
||||
copy(read_data[0:], read_data[read_data_len-b_len-4:])
|
||||
read_data_len = b_len + 4
|
||||
}
|
||||
target.Write(read_data[:read_data_len])
|
||||
return nil, reach_end, nil
|
||||
}
|
||||
|
||||
// / 解析表单的头部
|
||||
// / @param read_data 已经从流中读到的数据
|
||||
// / @param read_total 已经从流中读到的数据长度
|
||||
// / @param boundary 表单的分割字符串
|
||||
// / @param stream 输入流
|
||||
// / @return FileHeader 文件名等信息头
|
||||
// /[]byte 已经从流中读到的部分
|
||||
// /error 是否发生错误
|
||||
func ParseFromHead(read_data []byte, read_total int, boundary []byte, stream io.ReadCloser) (map[string]string, []byte, error) {
|
||||
|
||||
buf := make([]byte, 1024*8)
|
||||
found_boundary := false
|
||||
boundary_loc := -1
|
||||
|
||||
for {
|
||||
read_len, err := stream.Read(buf)
|
||||
if err != nil {
|
||||
if err != io.EOF {
|
||||
return nil, nil, err
|
||||
}
|
||||
break
|
||||
}
|
||||
if read_total+read_len > cap(read_data) {
|
||||
return nil, nil, fmt.Errorf("not found boundary")
|
||||
}
|
||||
copy(read_data[read_total:], buf[:read_len])
|
||||
read_total += read_len
|
||||
if !found_boundary {
|
||||
boundary_loc = bytes.LastIndex(read_data[:read_total], boundary)
|
||||
if boundary_loc == -1 {
|
||||
continue
|
||||
}
|
||||
found_boundary = true
|
||||
}
|
||||
start_loc := boundary_loc + len(boundary)
|
||||
fmt.Println(string(read_data))
|
||||
file_head_loc := bytes.Index(read_data[start_loc:read_total], []byte("\r\n\r\n"))
|
||||
if file_head_loc == -1 {
|
||||
continue
|
||||
}
|
||||
file_head_loc += start_loc
|
||||
ret := false
|
||||
headMap, ret := ParseFileHeader(read_data, boundary)
|
||||
if !ret {
|
||||
return headMap, nil, fmt.Errorf("ParseFileHeader fail:%s", string(read_data[start_loc:file_head_loc]))
|
||||
}
|
||||
return headMap, read_data[file_head_loc+4 : read_total], nil
|
||||
}
|
||||
return nil, nil, fmt.Errorf("reach to sream EOF")
|
||||
}
|
||||
|
Reference in New Issue
Block a user