✨ Add translation features

2025-07-06 23:40:14 +08:00
parent a2a332e735
commit 7c2318a13f
19 changed files with 2449 additions and 530 deletions
--- a/internal/common/translator/bing_translator.go
+++ b/internal/common/translator/bing_translator.go
@@ -6,7 +6,9 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"math/rand"
 	"net/http"
+	"net/http/cookiejar"
 	"net/url"
 	"regexp"
 	"strings"
@@ -17,51 +19,296 @@ import (

 // BingTranslator Bing翻译器结构体
 type BingTranslator struct {
-	BingHost   string        // Bing服务主机
-	httpClient *http.Client  // HTTP客户端
-	Timeout    time.Duration // 请求超时时间
+	httpClient *http.Client            // HTTP客户端
+	Timeout    time.Duration           // 请求超时时间
+	session    *BingSession            // Bing会话
+	languages  map[string]LanguageInfo // 支持的语言列表
+}
+
+// BingSession 保持Bing翻译会话状态
+type BingSession struct {
+	Cookie  map[string]string // 会话Cookie
+	Headers map[string]string // 会话请求头
+	Token   string            // 翻译Token
+	Key     string            // 翻译Key
+	IG      string            // IG参数
 }

 // 常量定义
 const (
-	bingDefaultTimeout = 30 * time.Second
-	defaultBingHost    = "cn.bing.com" // 使用cn.bing.com作为默认域名
+	bingDefaultTimeout  = 30 * time.Second
+	bingTranslatorURL   = "https://cn.bing.com/translator"
+	bingTranslateAPIURL = "https://cn.bing.com/ttranslatev3"
 )

 // 错误定义
 var (
-	ErrBingNetworkError = errors.New("bing translator network error")
-	ErrBingParseError   = errors.New("bing translator parse error")
-	ErrBingTokenError   = errors.New("failed to get bing translator token")
+	ErrBingNetworkError  = errors.New("bing translator network error")
+	ErrBingParseError    = errors.New("bing translator parse error")
+	ErrBingTokenError    = errors.New("failed to get bing translator token")
+	ErrBingEmptyResponse = errors.New("empty response from bing translator")
+	ErrBingRateLimit     = errors.New("bing translator rate limit reached")
 )

-// BingTranslationParams Bing翻译所需的参数
-type BingTranslationParams struct {
-	Token string // token参数
-	Key   string // key参数
-	IG    string // IG参数
+// 用户代理列表
+var userAgents = []string{
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36",
+	"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Safari/605.1.15",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:124.0) Gecko/20100101 Firefox/124.0",
+	"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36",
 }

 // NewBingTranslator 创建一个新的Bing翻译器实例
 func NewBingTranslator() *BingTranslator {
+	// 初始化随机数种子
+	rand.New(rand.NewSource(time.Now().UnixNano()))
+
+	// 创建带Cookie存储的HTTP客户端
+	jar, _ := cookiejar.New(nil)
+
 	translator := &BingTranslator{
-		BingHost:   defaultBingHost,
-		Timeout:    bingDefaultTimeout,
-		httpClient: &http.Client{Timeout: bingDefaultTimeout},
+		httpClient: &http.Client{
+			Timeout: bingDefaultTimeout,
+			// 启用Cookie存储
+			Jar: jar,
+		},
+		Timeout: bingDefaultTimeout,
+		session: &BingSession{
+			Headers: make(map[string]string),
+			Cookie:  make(map[string]string),
+		},
+		languages: initBingLanguages(),
 	}

+	// 初始化会话
+	translator.refreshSession()
+
 	return translator
 }

+// initBingLanguages 初始化Bing翻译器支持的语言列表
+func initBingLanguages() map[string]LanguageInfo {
+	// 创建语言映射表
+	languages := make(map[string]LanguageInfo)
+
+	// 添加所有支持的语言
+	// 基于 Microsoft Translator 支持的语言列表
+	// 参考: https://learn.microsoft.com/en-us/azure/ai-services/translator/language-support
+
+	// 常用语言
+	languages["en"] = LanguageInfo{Code: "en", Name: "English"}
+	languages["zh-Hans"] = LanguageInfo{Code: "zh-Hans", Name: "Chinese Simplified"}
+	languages["zh-Hant"] = LanguageInfo{Code: "zh-Hant", Name: "Chinese Traditional"}
+	languages["ja"] = LanguageInfo{Code: "ja", Name: "Japanese"}
+	languages["ko"] = LanguageInfo{Code: "ko", Name: "Korean"}
+	languages["fr"] = LanguageInfo{Code: "fr", Name: "French"}
+	languages["fr-ca"] = LanguageInfo{Code: "fr-ca", Name: "French (Canada)"}
+	languages["de"] = LanguageInfo{Code: "de", Name: "German"}
+	languages["es"] = LanguageInfo{Code: "es", Name: "Spanish"}
+	languages["ru"] = LanguageInfo{Code: "ru", Name: "Russian"}
+	languages["pt"] = LanguageInfo{Code: "pt", Name: "Portuguese (Brazil)"}
+	languages["pt-br"] = LanguageInfo{Code: "pt-br", Name: "Portuguese (Brazil)"}
+	languages["pt-pt"] = LanguageInfo{Code: "pt-pt", Name: "Portuguese (Portugal)"}
+	languages["it"] = LanguageInfo{Code: "it", Name: "Italian"}
+	languages["ar"] = LanguageInfo{Code: "ar", Name: "Arabic"}
+
+	// 特殊语言
+	languages["yue"] = LanguageInfo{Code: "yue", Name: "Cantonese (Traditional)"}
+	languages["lzh"] = LanguageInfo{Code: "lzh", Name: "Chinese (Literary)"}
+
+	// 其他语言
+	languages["af"] = LanguageInfo{Code: "af", Name: "Afrikaans"}
+	languages["am"] = LanguageInfo{Code: "am", Name: "Amharic"}
+	languages["as"] = LanguageInfo{Code: "as", Name: "Assamese"}
+	languages["az"] = LanguageInfo{Code: "az", Name: "Azerbaijani (Latin)"}
+	languages["ba"] = LanguageInfo{Code: "ba", Name: "Bashkir"}
+	languages["bg"] = LanguageInfo{Code: "bg", Name: "Bulgarian"}
+	languages["bn"] = LanguageInfo{Code: "bn", Name: "Bangla"}
+	languages["bo"] = LanguageInfo{Code: "bo", Name: "Tibetan"}
+	languages["bs"] = LanguageInfo{Code: "bs", Name: "Bosnian (Latin)"}
+	languages["ca"] = LanguageInfo{Code: "ca", Name: "Catalan"}
+	languages["cs"] = LanguageInfo{Code: "cs", Name: "Czech"}
+	languages["cy"] = LanguageInfo{Code: "cy", Name: "Welsh"}
+	languages["da"] = LanguageInfo{Code: "da", Name: "Danish"}
+	languages["dv"] = LanguageInfo{Code: "dv", Name: "Divehi"}
+	languages["el"] = LanguageInfo{Code: "el", Name: "Greek"}
+	languages["et"] = LanguageInfo{Code: "et", Name: "Estonian"}
+	languages["eu"] = LanguageInfo{Code: "eu", Name: "Basque"}
+	languages["fa"] = LanguageInfo{Code: "fa", Name: "Persian"}
+	languages["fi"] = LanguageInfo{Code: "fi", Name: "Finnish"}
+	languages["fil"] = LanguageInfo{Code: "fil", Name: "Filipino"}
+	languages["fj"] = LanguageInfo{Code: "fj", Name: "Fijian"}
+	languages["fo"] = LanguageInfo{Code: "fo", Name: "Faroese"}
+	languages["ga"] = LanguageInfo{Code: "ga", Name: "Irish"}
+	languages["gl"] = LanguageInfo{Code: "gl", Name: "Galician"}
+	languages["gu"] = LanguageInfo{Code: "gu", Name: "Gujarati"}
+	languages["ha"] = LanguageInfo{Code: "ha", Name: "Hausa"}
+	languages["he"] = LanguageInfo{Code: "he", Name: "Hebrew"}
+	languages["hi"] = LanguageInfo{Code: "hi", Name: "Hindi"}
+	languages["hr"] = LanguageInfo{Code: "hr", Name: "Croatian"}
+	languages["ht"] = LanguageInfo{Code: "ht", Name: "Haitian Creole"}
+	languages["hu"] = LanguageInfo{Code: "hu", Name: "Hungarian"}
+	languages["hy"] = LanguageInfo{Code: "hy", Name: "Armenian"}
+	languages["id"] = LanguageInfo{Code: "id", Name: "Indonesian"}
+	languages["ig"] = LanguageInfo{Code: "ig", Name: "Igbo"}
+	languages["is"] = LanguageInfo{Code: "is", Name: "Icelandic"}
+	languages["ka"] = LanguageInfo{Code: "ka", Name: "Georgian"}
+	languages["kk"] = LanguageInfo{Code: "kk", Name: "Kazakh"}
+	languages["km"] = LanguageInfo{Code: "km", Name: "Khmer"}
+	languages["kn"] = LanguageInfo{Code: "kn", Name: "Kannada"}
+	languages["ku"] = LanguageInfo{Code: "ku", Name: "Kurdish (Arabic) (Central)"}
+	languages["ky"] = LanguageInfo{Code: "ky", Name: "Kyrgyz (Cyrillic)"}
+	languages["lo"] = LanguageInfo{Code: "lo", Name: "Lao"}
+	languages["lt"] = LanguageInfo{Code: "lt", Name: "Lithuanian"}
+	languages["lv"] = LanguageInfo{Code: "lv", Name: "Latvian"}
+	languages["mg"] = LanguageInfo{Code: "mg", Name: "Malagasy"}
+	languages["mi"] = LanguageInfo{Code: "mi", Name: "Maori"}
+	languages["mk"] = LanguageInfo{Code: "mk", Name: "Macedonian"}
+	languages["ml"] = LanguageInfo{Code: "ml", Name: "Malayalam"}
+	languages["mn-Cyrl"] = LanguageInfo{Code: "mn-Cyrl", Name: "Mongolian (Cyrillic)"}
+	languages["mr"] = LanguageInfo{Code: "mr", Name: "Marathi"}
+	languages["ms"] = LanguageInfo{Code: "ms", Name: "Malay (Latin)"}
+	languages["mt"] = LanguageInfo{Code: "mt", Name: "Maltese"}
+	languages["mww"] = LanguageInfo{Code: "mww", Name: "Hmong Daw (Latin)"}
+	languages["my"] = LanguageInfo{Code: "my", Name: "Myanmar (Burmese)"}
+	languages["nb"] = LanguageInfo{Code: "nb", Name: "Norwegian Bokmål"}
+	languages["ne"] = LanguageInfo{Code: "ne", Name: "Nepali"}
+	languages["nl"] = LanguageInfo{Code: "nl", Name: "Dutch"}
+	languages["or"] = LanguageInfo{Code: "or", Name: "Odia"}
+	languages["otq"] = LanguageInfo{Code: "otq", Name: "Queretaro Otomi"}
+	languages["pa"] = LanguageInfo{Code: "pa", Name: "Punjabi"}
+	languages["pl"] = LanguageInfo{Code: "pl", Name: "Polish"}
+	languages["prs"] = LanguageInfo{Code: "prs", Name: "Dari"}
+	languages["ps"] = LanguageInfo{Code: "ps", Name: "Pashto"}
+	languages["ro"] = LanguageInfo{Code: "ro", Name: "Romanian"}
+	languages["rw"] = LanguageInfo{Code: "rw", Name: "Kinyarwanda"}
+	languages["sk"] = LanguageInfo{Code: "sk", Name: "Slovak"}
+	languages["sl"] = LanguageInfo{Code: "sl", Name: "Slovenian"}
+	languages["sm"] = LanguageInfo{Code: "sm", Name: "Samoan (Latin)"}
+	languages["sn"] = LanguageInfo{Code: "sn", Name: "chiShona"}
+	languages["so"] = LanguageInfo{Code: "so", Name: "Somali"}
+	languages["sq"] = LanguageInfo{Code: "sq", Name: "Albanian"}
+	languages["sr-Cyrl"] = LanguageInfo{Code: "sr-Cyrl", Name: "Serbian (Cyrillic)"}
+	languages["sr"] = LanguageInfo{Code: "sr", Name: "Serbian (Latin)"}
+	languages["sr-latn"] = LanguageInfo{Code: "sr-latn", Name: "Serbian (Latin)"}
+	languages["sv"] = LanguageInfo{Code: "sv", Name: "Swedish"}
+	languages["sw"] = LanguageInfo{Code: "sw", Name: "Swahili (Latin)"}
+	languages["ta"] = LanguageInfo{Code: "ta", Name: "Tamil"}
+	languages["te"] = LanguageInfo{Code: "te", Name: "Telugu"}
+	languages["th"] = LanguageInfo{Code: "th", Name: "Thai"}
+	languages["ti"] = LanguageInfo{Code: "ti", Name: "Tigrinya"}
+	languages["tk"] = LanguageInfo{Code: "tk", Name: "Turkmen (Latin)"}
+	languages["tlh-Latn"] = LanguageInfo{Code: "tlh-Latn", Name: "Klingon"}
+	languages["tlh-Piqd"] = LanguageInfo{Code: "tlh-Piqd", Name: "Klingon (plqaD)"}
+	languages["to"] = LanguageInfo{Code: "to", Name: "Tongan"}
+	languages["tr"] = LanguageInfo{Code: "tr", Name: "Turkish"}
+	languages["tt"] = LanguageInfo{Code: "tt", Name: "Tatar (Latin)"}
+	languages["ty"] = LanguageInfo{Code: "ty", Name: "Tahitian"}
+	languages["ug"] = LanguageInfo{Code: "ug", Name: "Uyghur (Arabic)"}
+	languages["uk"] = LanguageInfo{Code: "uk", Name: "Ukrainian"}
+	languages["ur"] = LanguageInfo{Code: "ur", Name: "Urdu"}
+	languages["uz"] = LanguageInfo{Code: "uz", Name: "Uzbek (Latin)"}
+	languages["vi"] = LanguageInfo{Code: "vi", Name: "Vietnamese"}
+	languages["yua"] = LanguageInfo{Code: "yua", Name: "Yucatec Maya"}
+	languages["zu"] = LanguageInfo{Code: "zu", Name: "Zulu"}
+
+	// 添加一些特殊情况的映射
+	languages["zh"] = LanguageInfo{Code: "zh-Hans", Name: "Chinese Simplified"} // 将zh映射到zh-Hans
+
+	return languages
+}
+
 // SetTimeout 设置请求超时时间
 func (t *BingTranslator) SetTimeout(timeout time.Duration) {
 	t.Timeout = timeout
 	t.httpClient.Timeout = timeout
 }

-// SetBingHost 设置Bing主机
-func (t *BingTranslator) SetBingHost(host string) {
-	t.BingHost = host
+// getRandomUserAgent 获取随机用户代理
+func getRandomUserAgent() string {
+	return userAgents[rand.Intn(len(userAgents))]
+}
+
+// refreshSession 刷新翻译会话
+func (t *BingTranslator) refreshSession() error {
+	// 设置随机用户代理
+	userAgent := getRandomUserAgent()
+	t.session.Headers["User-Agent"] = userAgent
+	t.session.Headers["Referer"] = bingTranslatorURL
+	t.session.Headers["Accept"] = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"
+	t.session.Headers["Accept-Language"] = "en-US,en;q=0.5"
+	t.session.Headers["Connection"] = "keep-alive"
+	t.session.Headers["Upgrade-Insecure-Requests"] = "1"
+	t.session.Headers["Cache-Control"] = "max-age=0"
+
+	// 创建请求
+	req, err := http.NewRequest("GET", bingTranslatorURL, nil)
+	if err != nil {
+		return fmt.Errorf("the creation request failed: %w", err)
+	}
+
+	// 设置请求头
+	for k, v := range t.session.Headers {
+		req.Header.Set(k, v)
+	}
+
+	// 发送请求
+	resp, err := t.httpClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("%w: %v", ErrBingNetworkError, err)
+	}
+	defer resp.Body.Close()
+
+	// 保存Cookie
+	for _, cookie := range resp.Cookies() {
+		t.session.Cookie[cookie.Name] = cookie.Value
+	}
+
+	// 读取响应内容
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return fmt.Errorf("read response failed: %w", err)
+	}
+
+	content := string(body)
+
+	// 提取参数
+	// 1. 提取key和token
+	paramsPattern := regexp.MustCompile(`params_AbusePreventionHelper\s*=\s*(\[.*?\]);`)
+	paramsMatch := paramsPattern.FindStringSubmatch(content)
+	if paramsMatch == nil || len(paramsMatch) < 2 {
+		return fmt.Errorf("%w: params_AbusePreventionHelper could not be extracted", ErrBingTokenError)
+	}
+
+	// 解析参数数组
+	paramsStr := paramsMatch[1]
+	paramsStr = strings.ReplaceAll(paramsStr, "[", "")
+	paramsStr = strings.ReplaceAll(paramsStr, "]", "")
+	paramsParts := strings.Split(paramsStr, ",")
+
+	if len(paramsParts) < 2 {
+		return fmt.Errorf("%w: params_AbusePreventionHelper format is incorrect", ErrBingTokenError)
+	}
+
+	// 提取key和token
+	t.session.Key = strings.Trim(paramsParts[0], `"' `)
+	t.session.Token = strings.Trim(paramsParts[1], `"' `)
+
+	// 2. 提取IG值
+	igPattern := regexp.MustCompile(`IG:"(\w+)"`)
+	igMatch := igPattern.FindStringSubmatch(content)
+	if igMatch == nil || len(igMatch) < 2 {
+		return fmt.Errorf("%w: Unable to extract IG values", ErrBingTokenError)
+	}
+
+	t.session.IG = igMatch[1]
+
+	// 更新会话头部
+	t.session.Headers["IG"] = t.session.IG
+	t.session.Headers["key"] = t.session.Key
+	t.session.Headers["token"] = t.session.Token
+
+	return nil
 }

 // Translate 使用标准语言标签进行文本翻译
@@ -71,207 +318,166 @@ func (t *BingTranslator) Translate(text string, from language.Tag, to language.T

 // TranslateWithParams 使用简单字符串参数进行文本翻译
 func (t *BingTranslator) TranslateWithParams(text string, params TranslationParams) (string, error) {
+	// 设置超时时间（如果有指定）
+	if params.Timeout > 0 {
+		t.SetTimeout(params.Timeout)
+	}
+
 	return t.translate(text, params.From, params.To)
 }

 // translate 执行实际翻译操作
 func (t *BingTranslator) translate(text, from, to string) (string, error) {
-	// 获取翻译所需的参数
-	params, err := t.ExtractBingTranslationParams()
-	if err != nil {
-		return "", fmt.Errorf("failed to extract bing translation params: %w", err)
-	}
-
-	// 执行翻译
-	return t.GetBingTranslation(params.Token, params.Key, params.IG, text, from, to)
-}
-
-// ExtractBingTranslationParams 提取Bing翻译所需的参数
-func (t *BingTranslator) ExtractBingTranslationParams() (*BingTranslationParams, error) {
-	// 发送GET请求获取网页内容
-	url := fmt.Sprintf("https://%s/translator?mkt=zh-CN", t.BingHost)
-
-	req, err := http.NewRequest("GET", url, nil)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
-
-	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36")
-	req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7")
-	req.Header.Set("Accept-Language", "zh-CN,zh;q=0.9,en;q=0.8")
-
-	resp, err := t.httpClient.Do(req)
-	if err != nil {
-		return nil, fmt.Errorf("%w: %v", ErrBingNetworkError, err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		return nil, fmt.Errorf("failed to access Bing translator page: status code %d", resp.StatusCode)
-	}
-
-	// 读取响应内容
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return nil, fmt.Errorf("failed to read response: %w", err)
-	}
-
-	pageContent := string(body)
-
-	// 模式1: 标准的params_AbusePreventionHelper数组
-	keyPattern := regexp.MustCompile(`params_AbusePreventionHelper\s*=\s*\[([^\]]+)\]`)
-	keyMatch := keyPattern.FindStringSubmatch(pageContent)
-
-	var key, token string
-
-	if len(keyMatch) >= 2 {
-		// 提取并解析数组
-		paramsStr := keyMatch[1]
-		paramsList := strings.Split(paramsStr, ",")
-
-		if len(paramsList) >= 2 {
-			// 清理引号
-			key = strings.Trim(paramsList[0], `"' `)
-			token = strings.Trim(paramsList[1], `"' `)
+	// 如果没有会话或关键参数缺失，刷新会话
+	if t.session == nil || t.session.Token == "" || t.session.Key == "" || t.session.IG == "" {
+		if err := t.refreshSession(); err != nil {
+			return "", fmt.Errorf("the refresh session failed: %w", err)
 		}
 	}

-	// 如果标准模式失败，尝试备用模式
-	if key == "" || token == "" {
-		// 模式2: 查找_G.Token和_G.Key
-		tokenPattern := regexp.MustCompile(`_G\.Token\s*=\s*["']([^"']+)["']`)
-		tokenMatch := tokenPattern.FindStringSubmatch(pageContent)
+	// 生成随机IID
+	randNum := rand.Intn(10)                              // 0-9的随机数
+	iid := fmt.Sprintf("translator.5019.%d", 1+randNum%3) // 生成随机IID

-		keyPattern := regexp.MustCompile(`_G\.Key\s*=\s*["']?([^"',]+)["']?`)
-		keyMatch := keyPattern.FindStringSubmatch(pageContent)
+	// 构建URL - 确保使用双&符号
+	reqURL := fmt.Sprintf("%s?isVertical=1&&IG=%s&IID=%s",
+		bingTranslateAPIURL, t.session.IG, iid)

-		if len(tokenMatch) >= 2 && len(keyMatch) >= 2 {
-			token = tokenMatch[1]
-			key = keyMatch[1]
-		}
-	}
+	// 标准化语言代码
+	fromLang := t.GetStandardLanguageCode(from)
+	toLang := t.GetStandardLanguageCode(to)

-	// 如果仍然失败，尝试JSON格式
-	if key == "" || token == "" {
-		jsonPattern := regexp.MustCompile(`"token"\s*:\s*"([^"]+)"\s*,\s*"key"\s*:\s*"?([^",]+)"?`)
-		jsonMatch := jsonPattern.FindStringSubmatch(pageContent)
+	// 构建表单数据
+	formData := url.Values{}
+	formData.Set("fromLang", fromLang)
+	formData.Set("text", text)
+	formData.Set("to", toLang)
+	formData.Set("token", t.session.Token)
+	formData.Set("key", t.session.Key)

-		if len(jsonMatch) >= 3 {
-			token = jsonMatch[1]
-			key = jsonMatch[2]
-		}
-	}
-
-	// 如果所有模式都失败
-	if key == "" || token == "" {
-		return nil, fmt.Errorf("%w: unable to extract token and key", ErrBingTokenError)
-	}
-
-	// 查找并提取 IG 参数，尝试多种格式
-	var ig string
-
-	// 模式1: 标准IG格式
-	igPattern := regexp.MustCompile(`IG["']?\s*:\s*["']([^"']+)["']`)
-	igMatch := igPattern.FindStringSubmatch(pageContent)
-
-	if len(igMatch) >= 2 {
-		ig = igMatch[1]
-	} else {
-		// 模式2: 备用IG格式
-		igPattern = regexp.MustCompile(`"IG"\s*:\s*"([^"]+)"`)
-		igMatch = igPattern.FindStringSubmatch(pageContent)
-
-		if len(igMatch) >= 2 {
-			ig = igMatch[1]
-		} else {
-			// 模式3: _G.IG格式
-			igPattern = regexp.MustCompile(`_G\.IG\s*=\s*["']([^"']+)["']`)
-			igMatch = igPattern.FindStringSubmatch(pageContent)
-
-			if len(igMatch) >= 2 {
-				ig = igMatch[1]
-			}
-		}
-	}
-
-	// 如果所有IG提取模式都失败
-	if ig == "" {
-		return nil, fmt.Errorf("%w: unable to extract IG parameter", ErrBingTokenError)
-	}
-
-	return &BingTranslationParams{
-		Token: token,
-		Key:   key,
-		IG:    ig,
-	}, nil
-}
-
-// GetBingTranslation 获取Bing翻译结果
-func (t *BingTranslator) GetBingTranslation(token, key, ig, text, fromLang, toLang string) (string, error) {
-	// URL编码文本
-	encodedText := url.QueryEscape(text)
-
-	// 构建POST请求的payload
-	payload := fmt.Sprintf("fromLang=%s&to=%s&text=%s&token=%s&key=%s",
-		fromLang, toLang, encodedText, token, key)
-
-	// 构建URL
-	urlStr := fmt.Sprintf("https://%s/ttranslatev3?isVertical=1&IG=%s&IID=translator.5028", t.BingHost, ig)
+	formDataStr := formData.Encode()

 	// 创建请求
-	req, err := http.NewRequest("POST", urlStr, strings.NewReader(payload))
+	req, err := http.NewRequest("POST", reqURL, strings.NewReader(formDataStr))
 	if err != nil {
-		return "", fmt.Errorf("failed to create request: %w", err)
+		return "", fmt.Errorf("The creation request failed: %w", err)
 	}

 	// 设置请求头
-	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36")
-	req.Header.Set("Accept", "*/*")
-	req.Header.Set("Host", t.BingHost)
-	req.Header.Set("Connection", "keep-alive")
 	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-	req.Header.Set("Origin", fmt.Sprintf("https://%s", t.BingHost))
-	req.Header.Set("Referer", fmt.Sprintf("https://%s/translator", t.BingHost))
+	req.Header.Set("User-Agent", t.session.Headers["User-Agent"])
+	req.Header.Set("Referer", bingTranslatorURL)
+	req.Header.Set("Accept", "*/*")
+	req.Header.Set("Accept-Language", "en-US,en;q=0.5")
+	req.Header.Set("Origin", "https://cn.bing.com")
+	req.Header.Set("Connection", "keep-alive")
+	req.Header.Set("X-Requested-With", "XMLHttpRequest")
+
+	// 添加Cookie
+	for name, value := range t.session.Cookie {
+		req.AddCookie(&http.Cookie{
+			Name:  name,
+			Value: value,
+		})
+	}

 	// 发送请求
 	resp, err := t.httpClient.Do(req)
 	if err != nil {
 		return "", fmt.Errorf("%w: %v", ErrBingNetworkError, err)
 	}
-	defer resp.Body.Close()

-	// 判断请求是否成功
-	if resp.StatusCode != http.StatusOK {
-		return "", fmt.Errorf("API error: status code %d", resp.StatusCode)
-	}
-
-	// 读取响应体
+	// 读取响应
 	body, err := io.ReadAll(resp.Body)
+	resp.Body.Close()
+
 	if err != nil {
-		return "", fmt.Errorf("failed to read response: %w", err)
+		return "", fmt.Errorf("read response failed: %w", err)
 	}

-	// 检查响应内容
 	if len(body) == 0 {
-		return "", fmt.Errorf("translation API returned empty response")
+		return "", ErrBingEmptyResponse
 	}

-	// 使用最简单的结构体解析JSON
-	var response []struct {
-		Translations []struct {
-			Text string `json:"text"`
-		} `json:"translations"`
+	// 尝试解析响应
+	var result interface{}
+	if err := json.Unmarshal(body, &result); err != nil {
+		return "", fmt.Errorf("%w: %v", ErrBingParseError, err)
 	}

-	if err := json.Unmarshal(body, &response); err != nil {
-		return "", fmt.Errorf("%w: JSON parsing error: %v", ErrBingParseError, err)
+	// 检查是否是字典类型
+	if resultDict, ok := result.(map[string]interface{}); ok {
+		// 检查是否需要验证码
+		if _, hasCaptcha := resultDict["ShowCaptcha"]; hasCaptcha {
+			return "", ErrBingRateLimit
+		}
+
+		// 检查状态码
+		if statusCode, hasStatus := resultDict["statusCode"]; hasStatus {
+			if statusCode.(float64) == 400 {
+				// 检查是否有错误消息
+				if errorMsg, hasError := resultDict["errorMessage"]; hasError && errorMsg.(string) != "" {
+					return "", fmt.Errorf("translation failed: %s", errorMsg)
+				}
+				// 如果没有明确的错误消息，可能是API变更或其他问题
+				return "", fmt.Errorf("translation request failed (status code: 400)")
+			} else if statusCode.(float64) == 429 {
+				return "", ErrBingRateLimit
+			}
+		}
+
+		// 尝试从错误响应中提取详细信息
+		if message, hasMessage := resultDict["message"]; hasMessage {
+			return "", fmt.Errorf("translation failed: %v", message)
+		}
+
+		// 尝试从响应中获取翻译结果
+		if translations, hasTranslations := resultDict["translations"]; hasTranslations {
+			if translationsArray, ok := translations.([]interface{}); ok && len(translationsArray) > 0 {
+				if translation, ok := translationsArray[0].(map[string]interface{}); ok {
+					if text, ok := translation["text"].(string); ok {
+						return text, nil
+					}
+				}
+			}
+		}
+
+		// 其他错误
+		return "", fmt.Errorf("translation failed: %v", resultDict)
 	}

-	// 检查解析结果
-	if len(response) == 0 || len(response[0].Translations) == 0 {
-		return "", fmt.Errorf("%w: invalid response format", ErrBingParseError)
+	// 应该是数组类型
+	if resultArray, ok := result.([]interface{}); ok && len(resultArray) > 0 {
+		firstItem := resultArray[0]
+		if itemDict, ok := firstItem.(map[string]interface{}); ok {
+			if translations, ok := itemDict["translations"].([]interface{}); ok && len(translations) > 0 {
+				if translation, ok := translations[0].(map[string]interface{}); ok {
+					if text, ok := translation["text"].(string); ok {
+						return text, nil
+					}
+				}
+			}
+		}
 	}

-	// 返回翻译结果
-	return response[0].Translations[0].Text, nil
+	return "", fmt.Errorf("%w: The response format is not as expected", ErrBingParseError)
+}
+
+// GetSupportedLanguages 获取翻译器支持的语言列表
+func (t *BingTranslator) GetSupportedLanguages() map[string]LanguageInfo {
+	return t.languages
+}
+
+// IsLanguageSupported 检查指定的语言代码是否受支持
+func (t *BingTranslator) IsLanguageSupported(languageCode string) bool {
+	_, exists := t.languages[languageCode]
+	return exists
+}
+
+// GetStandardLanguageCode 获取标准化的语言代码
+func (t *BingTranslator) GetStandardLanguageCode(languageCode string) string {
+	if info, exists := t.languages[languageCode]; exists {
+		return info.Code
+	}
+	return languageCode // 如果没有找到映射，返回原始代码
 }