Dev (#268)

* feat: 更新 ConvertToString 函数以支持动态模型，并添加相关测试用例

* feat: 更新 HandlerTTS 函数以支持流式数据解析，并添加相关单元测试

* fix: 移除不再需要的 funcaptcha 依赖

* refactor: 替换固定UA为随机浏览器UA，优化指纹多样性

- 新增util包的RandomUserAgent函数，生成主流桌面浏览器随机UA
- 替换所有硬编码userAgent为defaultUserAgent()调用
- 为客户端状态加入UserAgent字段并初始化随机UA
- 重构prooftoken模块，适配新的随机UA和POW逻辑

* refactor(util/useragent): 限定UA模板仅为Edge Windows一族

移除其他浏览器的UA模板，仅保留Edge Windows版本，匹配硬编码的sec-ch-ua头以通过Cloudflare校验，同时保留版本随机化保证指纹多样性

* chore: release v2.3.1 and implement various feature improvements

- bump version to 2.3.1
- update .gitignore to add new ignore patterns
- update chatgpt request converter to pass client parameter
- optimize chatgpt request struct tags to omit empty fields
- add support for image_url message part and related file handling
- add automatic continuation when max tokens reached
- rewrite file upload logic with better mime detection and error handling
- rewrite turnstile solver with full VM implementation
- update proof token logic to align with latest ChatGPT requirements

Author: xiaozhou26

.gitignore

@@ -6,6 +6,7 @@ tools/authenticator/access_tokens.txt
 *.txt
 aurora
 chatgpttoapi
+chatgpt2api
 tools/authenticator/.proxies.txt.swp
 .env
 *.har
@@ -16,4 +17,6 @@ tools/authenticator/.proxies.txt.swp
 .claude
 .gocache
 .atomcode
-CLAUDE.md
+CLAUDE.md
+MIGRATION_PLAN.md
+_scratch/

VERSION

@@ -1 +1 @@
-2.3.0
+2.3.1

conversion/requests/chatgpt/convert.go

@@ -5,10 +5,14 @@ import (
 	"aurora/internal/tokens"
 	chatgpt_types "aurora/typings/chatgpt"
 	official_types "aurora/typings/official"
+	"aurora/httpclient"
+	"encoding/base64"
+	"io"
+	"net/http"
 	"strings"
 )
 
-func ConvertAPIRequest(api_request official_types.APIRequest, secret *tokens.Secret, proxy string) chatgpt_types.ChatGPTRequest {
+func ConvertAPIRequest(api_request official_types.APIRequest, secret *tokens.Secret, proxy string, client httpclient.AuroraHttpClient) chatgpt_types.ChatGPTRequest {
 	chatgpt_request := chatgpt_types.NewChatGPTRequest()
 
 	// Model is passed directly to upstream; default to "auto" if not provided
@@ -22,7 +26,7 @@ func ConvertAPIRequest(api_request official_types.APIRequest, secret *tokens.Sec
 		if apiMessage.Role == "system" {
 			apiMessage.Role = "critic"
 		}
-		parts, metadata := buildMessageParts(apiMessage)
+		parts, metadata := buildMessageParts(apiMessage, client, secret, proxy)
 		if len(metadata) > 0 {
 			chatgpt_request.AddMultimodalMessage(apiMessage.Role, parts, metadata)
 			continue
@@ -39,9 +43,9 @@ func ConvertTTSAPIRequest(input string) chatgpt_types.ChatGPTRequest {
 	return chatgpt_request
 }
 
-func buildMessageParts(message official_types.APIMessage) ([]interface{}, map[string]interface{}) {
+func buildMessageParts(message official_types.APIMessage, client httpclient.AuroraHttpClient, secret *tokens.Secret, proxy string) ([]interface{}, map[string]interface{}) {
 	text := message.Text()
-	files := enrichFiles(message.Files())
+	files := enrichFiles(message.Files(), client, secret, proxy)
 	if len(files) == 0 {
 		return []interface{}{text}, nil
 	}
@@ -106,15 +110,26 @@ func buildMessageParts(message official_types.APIMessage) ([]interface{}, map[st
 	}
 }
 
-func enrichFiles(files []official_types.FileAttachment) []official_types.FileAttachment {
+func enrichFiles(files []official_types.FileAttachment, client httpclient.AuroraHttpClient, secret *tokens.Secret, proxy string) []official_types.FileAttachment {
 	enriched := make([]official_types.FileAttachment, 0, len(files))
 	seen := make(map[string]bool)
 	for _, file := range files {
 		id := fileID(file)
 		if id == "" || seen[id] {
 			continue
 		}
-		if uploaded, ok := backendchatgpt.LookupUploadedFile(id); ok {
+
+		// 处理 image_url 的 inline 数据(data: URL 或 http URL)
+		if file.Source != "" && client != nil && secret != nil {
+			if uploaded, ok := uploadInlineImage(file, client, secret, proxy); ok {
+				file = uploaded
+			} else {
+				// 免费账号或上传失败:丢弃图片,只保留文本
+				continue
+			}
+		}
+
+		if uploaded, ok := backendchatgpt.LookupUploadedFile(fileID(file)); ok {
 			if file.ID == "" {
 				file.ID = uploaded.ID
 			}
@@ -137,12 +152,109 @@ func enrichFiles(files []official_types.FileAttachment) []official_types.FileAtt
 				file.LibraryFileID = uploaded.LibraryFileID
 			}
 		}
-		seen[id] = true
+		seen[fileID(file)] = true
 		enriched = append(enriched, file)
 	}
 	return enriched
 }
 
+// uploadInlineImage 将 data: URL 或 http URL 图片上传到 ChatGPT 文件服务。
+func uploadInlineImage(file official_types.FileAttachment, client httpclient.AuroraHttpClient, secret *tokens.Secret, proxy string) (official_types.FileAttachment, bool) {
+	src := file.Source
+	var data []byte
+	var filename string
+	var contentType string
+
+	if strings.HasPrefix(src, "data:") {
+		// data:image/png;base64,iVBOR...
+		commaIdx := strings.Index(src, ",")
+		if commaIdx < 0 {
+			return file, false
+		}
+		meta := src[:commaIdx]
+		b64data := src[commaIdx+1:]
+		// 提取 mime type
+		if semiIdx := strings.Index(meta, ";"); semiIdx > 5 {
+			contentType = meta[5:semiIdx]
+		}
+		var err error
+		data, err = base64.StdEncoding.DecodeString(b64data)
+		if err != nil {
+			// 尝试 raw base64
+			data, err = base64.RawStdEncoding.DecodeString(b64data)
+			if err != nil {
+				return file, false
+			}
+		}
+		filename = "image.png"
+		if contentType == "" {
+			contentType = "image/png"
+		}
+	} else if strings.HasPrefix(src, "http://") || strings.HasPrefix(src, "https://") {
+		// 下载远程图片
+		resp, err := http.Get(src)
+		if err != nil {
+			return file, false
+		}
+		defer resp.Body.Close()
+		if resp.StatusCode != 200 {
+			return file, false
+		}
+		data, err = io.ReadAll(resp.Body)
+		if err != nil {
+			return file, false
+		}
+		contentType = resp.Header.Get("Content-Type")
+		filename = guessFilenameFromURL(src)
+	} else {
+		return file, false
+	}
+
+	if len(data) == 0 {
+		return file, false
+	}
+	if contentType == "" {
+		contentType = http.DetectContentType(data)
+	}
+	if filename == "" {
+		filename = "image.png"
+	}
+
+	uploaded, _, err := backendchatgpt.UploadFile(client, secret, proxy, filename, contentType, data)
+	if err != nil {
+		// 免费 token 无法上传文件,回退:把 data URL 原样传递
+		return file, false
+	}
+
+	return official_types.FileAttachment{
+		ID:            uploaded.FileID,
+		FileID:        uploaded.FileID,
+		Name:          uploaded.Filename,
+		FileName:      uploaded.Filename,
+		Filename:      uploaded.Filename,
+		MimeType:      uploaded.MimeType,
+		MIMEType:      uploaded.MimeType,
+		Size:          uploaded.Bytes,
+		Width:         uploaded.Width,
+		Height:        uploaded.Height,
+		LibraryFileID: uploaded.LibraryFileID,
+	}, true
+}
+
+func guessFilenameFromURL(url string) string {
+	idx := strings.LastIndex(url, "/")
+	if idx >= 0 && idx < len(url)-1 {
+		name := url[idx+1:]
+		if q := strings.Index(name, "?"); q >= 0 {
+			name = name[:q]
+		}
+		if name != "" {
+			return name
+		}
+	}
+	return "image.png"
+}
+
 func fileID(file official_types.FileAttachment) string {
 	if strings.TrimSpace(file.FileID) != "" {
 		return strings.TrimSpace(file.FileID)

initialize/handlers.go

@@ -286,7 +286,7 @@ func (h *Handler) nightmare(c *gin.Context) {
 	client := bogdanfinn.NewStdClient()
 
 	// Convert the chat request to a ChatGPT request
-	translated_request := chatgptrequestconverter.ConvertAPIRequest(original_request, secret, proxyUrl)
+	translated_request := chatgptrequestconverter.ConvertAPIRequest(original_request, secret, proxyUrl, client)
 	clientState := chatgpt.NewChatClientState()
 	clientState.ConversationID = translated_request.ConversationID
 	clientState.ParentMessageID = translated_request.ParentMessageID
@@ -438,7 +438,7 @@ func (h *Handler) responses(c *gin.Context) {
 	uid := uuid.NewString()
 	client := bogdanfinn.NewStdClient()
 
-	translated_request := chatgptrequestconverter.ConvertAPIRequest(original_request, secret, proxyUrl)
+	translated_request := chatgptrequestconverter.ConvertAPIRequest(original_request, secret, proxyUrl, client)
 	clientState := chatgpt.NewChatClientState()
 	clientState.ConversationID = translated_request.ConversationID
 	clientState.ParentMessageID = translated_request.ParentMessageID
@@ -726,7 +726,7 @@ func (h *Handler) files(c *gin.Context) {
 	contentType := formFile.Header.Get("Content-Type")
 	client := bogdanfinn.NewStdClient()
 	client.SetCookies("https://chatgpt.com", chatgpt.BasicCookies)
-	uploaded, status, err := chatgpt.UploadFile(client, secret, h.proxy.GetProxyIP(), formFile.Filename, contentType, c.PostForm("purpose"), data)
+	uploaded, status, err := chatgpt.UploadFile(client, secret, h.proxy.GetProxyIP(), formFile.Filename, contentType, data)
 	if err != nil {
 		c.JSON(status, gin.H{"error": gin.H{
 			"message": err.Error(),