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utility.go
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utility.go
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package utility
import (
"bytes"
"crypto/tls"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"os"
"os/exec"
"path"
"path/filepath"
"regexp"
"strings"
"time"
"github.com/charmbracelet/glamour"
"github.com/gin-gonic/gin"
log "github.com/sirupsen/logrus"
"gopkg.in/gomail.v2"
"github.com/robinmin/xally/config"
)
type LogFile struct {
FileHandle *os.File
LogPath string
LogLevel string
}
func GetYYYYMMDD() string {
t := time.Now()
return fmt.Sprintf("%04d%02d%02d", t.Year(), t.Month(), t.Day())
}
func GetYYYYMM() string {
t := time.Now()
return fmt.Sprintf("%04d%02d", t.Year(), t.Month())
}
func NewLog(log_path string, name string, level string) *LogFile {
logger := &LogFile{
LogPath: log_path,
LogLevel: level,
}
if _, err := os.Stat(logger.LogPath); os.IsNotExist(err) {
errDir := os.MkdirAll(logger.LogPath, 0755)
if errDir != nil {
log.Error(err)
return logger
}
}
var err error
log_file := logger.LogPath + "/" + name + "_" + GetYYYYMMDD() + ".log"
if logger.FileHandle == nil {
logger.FileHandle, err = os.OpenFile(log_file, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
if err != nil {
log.Error(err)
return logger
}
log.SetOutput(logger.FileHandle)
// log.SetFormatter(&log.JSONFormatter{})
var level_int log.Level
if level_int, err = log.ParseLevel(level); err == nil {
log.SetLevel(level_int)
} else {
log.SetLevel(log.DebugLevel)
}
}
return logger
}
func (lf *LogFile) Close() {
if lf.FileHandle != nil {
lf.FileHandle.Close()
lf.FileHandle = nil
}
}
func EchoInfo(msg string) {
if len(msg) > 0 {
out, _ := glamour.Render(msg, "dark")
fmt.Print(out)
}
}
func GetCurrPath() string {
file, _ := exec.LookPath(os.Args[0])
path, _ := filepath.Abs(file)
index := strings.LastIndex(path, string(os.PathSeparator))
ret := path[:index]
return ret
}
// 翻译函数,接受要翻译的文本和目标语言代码,返回翻译结果和错误信息
func Translate(text string, lang string) (string, error) {
msg := ""
// 设置DeepL API的URL和API密钥
api_key := config.MyConfig.System.DeeplApiKey
if api_key == "" {
api_key = os.Getenv("DEEPL_API_KEY")
if api_key == "" {
msg = config.Text("error_no_deepl_key")
return msg, nil
}
}
api_url := config.MyConfig.System.APIEndpointDeepl + "/translate"
// 构建HTTP请求
values := url.Values{}
values.Set("auth_key", api_key)
values.Set("text", text)
values.Set("target_lang", lang)
req, err := http.NewRequest("POST", api_url,
ioutil.NopCloser(strings.NewReader(values.Encode())))
if err != nil {
msg = "Failed to create HTTP request object: " + err.Error()
return msg, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
// 发送HTTP请求并解析响应
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
msg = "Failed to do HTTP request: " + err.Error()
return msg, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
msg = "Failed to read HTTP response body: " + err.Error()
return msg, err
}
// 解析响应并提取翻译结果
var result struct {
Translations []struct {
Text string `json:"text"`
} `json:"translations"`
}
err = json.Unmarshal(body, &result)
if err != nil {
msg = "Failed to unmarshal HTTP response body: " + err.Error()
return msg, err
}
return result.Translations[0].Text, nil
}
// 查询字典函数,接受要查询的单词和目标语言代码,返回查询结果和错误信息
func Lookup(text string, lang string) (string, error) {
msg := ""
// 设置DeepL API的URL和API密钥
api_key := config.MyConfig.System.DeeplApiKey
if api_key == "" {
api_key = os.Getenv("DEEPL_API_KEY")
if api_key == "" {
msg = config.Text("error_no_deepl_key")
return msg, nil
}
}
api_url := config.MyConfig.System.APIEndpointDeepl + "/lexicon"
// 构建HTTP请求
values := url.Values{}
values.Set("auth_key", api_key)
values.Set("text", text)
values.Set("target_lang", lang)
req, err := http.NewRequest("POST", api_url,
ioutil.NopCloser(strings.NewReader(values.Encode())))
if err != nil {
msg = "Failed to create HTTP request object: " + err.Error()
return msg, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
// 发送HTTP请求并解析响应
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
msg = "Failed to do HTTP request: " + err.Error()
return msg, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
msg = "Failed to read HTTP response body: " + err.Error()
return msg, err
}
// 解析响应并提取查询结果
var result struct {
Lexemes []struct {
Lemma string `json:"lemma"`
Pos string `json:"pos"`
Sense string `json:"sense"`
} `json:"lexemes"`
}
err = json.Unmarshal(body, &result)
if err != nil {
msg = "Failed to unmarshal HTTP response body: " + err.Error()
return msg, err
}
// 构建查询结果字符串
var sb strings.Builder
for _, lexeme := range result.Lexemes {
sb.WriteString(fmt.Sprintf("%s (%s): %s\n", lexeme.Lemma,
lexeme.Pos, lexeme.Sense))
}
return sb.String(), nil
}
func FetchURL(verb string, url string, payload string, headers map[string]string) (int, string, error) {
resp_code := http.StatusRequestTimeout
msg := ""
resp_body := ""
// 创建HTTP请求
req, err := http.NewRequest(verb, url, bytes.NewBuffer([]byte(payload)))
if err != nil {
msg = fmt.Sprintf("failed to create HTTP request: %v", err.Error())
log.Error(msg)
return resp_code, resp_body, err
}
// 设置HTTP请求头
if headers != nil && len(headers) > 0 {
for key, value := range headers {
req.Header.Set(key, value)
}
}
// set the http headers if not specified
acceptType := req.Header.Get("Accept")
if acceptType == "" {
req.Header.Set("Accept", "application/json; charset=utf-8")
}
acceptLang := req.Header.Get("Accept-Language")
if acceptLang == "" {
req.Header.Set("Accept-Language", "application/json; charset=utf-8")
}
contentType := req.Header.Get("Content-Type")
if contentType == "" {
req.Header.Set("Content-Type", config.GetAcceptLanguage())
}
req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36")
// 创建HTTP客户端
client := &http.Client{
Timeout: 10 * time.Second,
}
resp, err := client.Do(req)
if resp != nil {
resp_code = resp.StatusCode
}
if err != nil || resp == nil {
msg = fmt.Sprintf("failed to send HTTP request: %v", err.Error())
log.Error(msg)
return resp_code, resp_body, err
}
defer resp.Body.Close()
resp_code = resp.StatusCode
if resp.StatusCode == http.StatusOK {
bodyBytes, err := io.ReadAll(resp.Body)
if err != nil {
msg = fmt.Sprintf("failed to read response body: %v", err.Error())
log.Error(msg)
} else {
resp_body = string(bodyBytes)
}
}
// 返回响应状态码、响应体和错误信息
return resp_code, resp_body, err
}
func FetchURLWithRetry(verb string, url string, payload string, headers map[string]string, retries int, retryInterval time.Duration) (int, string, error) {
resp_code := http.StatusRequestTimeout
msg := ""
resp_body := ""
// 创建HTTP请求
req, err := http.NewRequest(verb, url, bytes.NewBuffer([]byte(payload)))
if err != nil {
msg = fmt.Sprintf("failed to create HTTP request: %v", err.Error())
log.Error(msg)
return resp_code, resp_body, err
}
// 设置HTTP请求头
if headers != nil && len(headers) > 0 {
for key, value := range headers {
req.Header.Set(key, value)
}
}
// set the http headers if not specified
acceptType := req.Header.Get("Accept")
if acceptType == "" {
req.Header.Set("Accept", "application/json; charset=utf-8")
}
acceptLang := req.Header.Get("Accept-Language")
if acceptLang == "" {
req.Header.Set("Accept-Language", "application/json; charset=utf-8")
}
contentType := req.Header.Get("Content-Type")
if contentType == "" {
req.Header.Set("Content-Type", config.GetAcceptLanguage())
}
req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36")
// 创建HTTP客户端
client := &http.Client{
Timeout: retryInterval * time.Second,
}
var resp *http.Response
for i := 0; i < retries; i++ {
resp, err = client.Do(req)
if resp != nil {
resp_code = resp.StatusCode
}
if err == nil && resp.StatusCode == http.StatusOK {
defer resp.Body.Close()
bodyBytes, err := io.ReadAll(resp.Body)
if err != nil {
msg = fmt.Sprintf("failed to read response body: %v", err.Error())
log.Error(msg)
} else {
resp_body = string(bodyBytes)
// 返回响应状态码、响应体和错误信息
return resp_code, resp_body, nil
}
}
time.Sleep(retryInterval)
}
if err != nil {
return resp_code, "", err
}
return resp_code, "", fmt.Errorf("failed to load URL %s after %d retries: status code %d", url, retries, resp.StatusCode)
}
func SendEmail(to, subject, body string) error {
m := gomail.NewMessage()
m.SetHeader("From", config.SvrConfig.Server.SMTPUsername)
m.SetHeader("To", to)
// m.SetAddressHeader("Cc", "dan@example.com", "Dan")
m.SetHeader("Subject", subject)
m.SetBody("text/html", body)
// m.Attach("/home/Alex/lolcat.jpg")
d := gomail.NewDialer(
config.SvrConfig.Server.SMTPServer,
config.SvrConfig.Server.SMTPPort,
config.SvrConfig.Server.SMTPUsername,
config.SvrConfig.Server.SMTPPassword,
)
d.TLSConfig = &tls.Config{InsecureSkipVerify: true}
// Send the email to Bob, Cora and Dan.
if err := d.DialAndSend(m); err != nil {
log.Error("Failed to send email : " + err.Error())
return err
}
// // 配置SMTP客户端
// auth := smtp.PlainAuth(
// "",
// config.SvrConfig.Server.SMTPUsername,
// config.SvrConfig.Server.SMTPPassword,
// config.SvrConfig.Server.SMTPServer,
// )
// addr := fmt.Sprintf("%s:%d", config.SvrConfig.Server.SMTPServer, config.SvrConfig.Server.SMTPPort)
// // 构造邮件内容
// msg := []byte("To: " + to + "\r\n" +
// "Subject: " + subject + "\r\n" +
// "\r\n" +
// body + "\r\n")
// // 发送邮件
// err := smtp.SendMail(addr, auth, config.SvrConfig.Server.SMTPUsername, []string{to}, msg)
// if err != nil {
// return err
// }
return nil
}
func GetBaseURL(endpoint_url string) string {
u, err := url.Parse(endpoint_url)
if err == nil {
var parent *url.URL
if len(u.Path) > 1 {
parent = &url.URL{
Scheme: u.Scheme,
Host: u.Host,
Path: path.Dir(u.Path),
}
} else {
parent = &url.URL{
Scheme: u.Scheme,
Host: u.Host,
Path: u.Path,
}
}
return parent.String()
}
return "http://127.0.0.1:8090/"
}
func IsValidEmail(email string) bool {
return regexp.MustCompile(`^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`).MatchString(email)
}
func IsValidURL(url_str string) bool {
u, err := url.Parse(url_str)
if err != nil || u.Scheme == "" || u.Host == "" {
return false
}
return true
}
func AcceptJSONResponse(ctx *gin.Context) bool {
accpt_type := ctx.Request.Header.Get("Accept")
return strings.Contains(strings.ToLower(accpt_type), "application/json")
}