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package global
import (
"bytes"
"crypto/md5"
"encoding/hex"
"errors"
"net"
"net/url"
"os"
"path"
"runtime"
"strconv"
"strings"
"github.com/Mrs4s/MiraiGo/utils"
log "github.com/sirupsen/logrus"
"github.com/Mrs4s/go-cqhttp/internal/param"
)
const (
// ImagePath go-cqhttp使用的图片缓存目录
ImagePath = "data/images"
// ImagePathOld 兼容旧版go-cqhttp使用的图片缓存目录
ImagePathOld = "data/image"
// VoicePath go-cqhttp使用的语音缓存目录
VoicePath = "data/voices"
// VoicePathOld 兼容旧版go-cqhttp使用的语音缓存目录
VoicePathOld = "data/record"
// VideoPath go-cqhttp使用的视频缓存目录
VideoPath = "data/videos"
// CachePath go-cqhttp使用的缓存目录
CachePath = "data/cache"
)
var (
// ErrSyntax Path语法错误时返回的错误
ErrSyntax = errors.New("syntax error")
// HeaderAmr AMR文件头
HeaderAmr = []byte("#!AMR")
// HeaderSilk Silkv3文件头
HeaderSilk = []byte("\x02#!SILK_V3")
)
// PathExists 判断给定path是否存在
func PathExists(path string) bool {
_, err := os.Stat(path)
return err == nil || errors.Is(err, os.ErrExist)
}
// ReadAllText 读取给定path对应文件无法读取时返回空值
func ReadAllText(path string) string {
b, err := os.ReadFile(path)
if err != nil {
log.Error(err)
return ""
}
return string(b)
}
// WriteAllText 将给定text写入给定path
func WriteAllText(path, text string) error {
return os.WriteFile(path, utils.S2B(text), 0o644)
}
// Check 检测err是否为nil
func Check(err error, deleteSession bool) {
if err != nil {
if deleteSession && PathExists("session.token") {
_ = os.Remove("session.token")
}
log.Fatalf("遇到错误: %v", err)
}
}
// IsAMRorSILK 判断给定文件是否为Amr或Silk格式
func IsAMRorSILK(b []byte) bool {
return bytes.HasPrefix(b, HeaderAmr) || bytes.HasPrefix(b, HeaderSilk)
}
// FindFile 从给定的File寻找文件并返回文件byte数组。File是一个合法的URL。p为文件寻找位置。
// 对于HTTP/HTTPS形式的URLCache为"1"或空时表示启用缓存
func FindFile(file, cache, p string) (data []byte, err error) {
data, err = nil, ErrSyntax
switch {
case strings.HasPrefix(file, "http"): // https also has prefix http
hash := md5.Sum([]byte(file))
cacheFile := path.Join(CachePath, hex.EncodeToString(hash[:])+".cache")
if (cache == "" || cache == "1") && PathExists(cacheFile) {
return os.ReadFile(cacheFile)
}
data, err = GetBytes(file)
_ = os.WriteFile(cacheFile, data, 0o644)
if err != nil {
return nil, err
}
case strings.HasPrefix(file, "base64"):
data, err = param.Base64DecodeString(strings.TrimPrefix(file, "base64://"))
if err != nil {
return nil, err
}
case strings.HasPrefix(file, "file"):
var fu *url.URL
fu, err = url.Parse(file)
if err != nil {
return nil, err
}
if strings.HasPrefix(fu.Path, "/") && runtime.GOOS == `windows` {
fu.Path = fu.Path[1:]
}
data, err = os.ReadFile(fu.Path)
if err != nil {
return nil, err
}
case PathExists(path.Join(p, file)):
data, err = os.ReadFile(path.Join(p, file))
if err != nil {
return nil, err
}
}
return
}
// DelFile 删除一个给定path并返回删除结果
func DelFile(path string) bool {
err := os.Remove(path)
if err != nil {
// 删除失败
log.Error(err)
return false
}
// 删除成功
log.Info(path + "删除成功")
return true
}
// ReadAddrFile 从给定path中读取合法的IP地址与端口,每个IP地址以换行符"\n"作为分隔
func ReadAddrFile(path string) []*net.TCPAddr {
d, err := os.ReadFile(path)
if err != nil {
return nil
}
str := string(d)
lines := strings.Split(str, "\n")
var ret []*net.TCPAddr
for _, l := range lines {
ip := strings.Split(strings.TrimSpace(l), ":")
if len(ip) == 2 {
port, _ := strconv.Atoi(ip[1])
ret = append(ret, &net.TCPAddr{IP: net.ParseIP(ip[0]), Port: port})
}
}
return ret
}