650 lines
22 KiB
Go
650 lines
22 KiB
Go
package claude
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"one-api/common"
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"one-api/dto"
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relaycommon "one-api/relay/common"
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"one-api/relay/helper"
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"one-api/service"
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"one-api/setting/model_setting"
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"strings"
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"github.com/gin-gonic/gin"
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)
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func stopReasonClaude2OpenAI(reason string) string {
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switch reason {
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case "stop_sequence":
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return "stop"
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case "end_turn":
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return "stop"
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case "max_tokens":
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return "max_tokens"
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default:
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return reason
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}
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}
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func RequestOpenAI2ClaudeComplete(textRequest dto.GeneralOpenAIRequest) *dto.ClaudeRequest {
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claudeRequest := dto.ClaudeRequest{
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Model: textRequest.Model,
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Prompt: "",
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StopSequences: nil,
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Temperature: textRequest.Temperature,
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TopP: textRequest.TopP,
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TopK: textRequest.TopK,
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Stream: textRequest.Stream,
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}
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if claudeRequest.MaxTokensToSample == 0 {
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claudeRequest.MaxTokensToSample = 4096
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}
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prompt := ""
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for _, message := range textRequest.Messages {
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if message.Role == "user" {
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prompt += fmt.Sprintf("\n\nHuman: %s", message.Content)
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} else if message.Role == "assistant" {
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prompt += fmt.Sprintf("\n\nAssistant: %s", message.Content)
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} else if message.Role == "system" {
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if prompt == "" {
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prompt = message.StringContent()
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}
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}
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}
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prompt += "\n\nAssistant:"
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claudeRequest.Prompt = prompt
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return &claudeRequest
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}
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func RequestOpenAI2ClaudeMessage(textRequest dto.GeneralOpenAIRequest) (*dto.ClaudeRequest, error) {
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claudeTools := make([]dto.Tool, 0, len(textRequest.Tools))
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for _, tool := range textRequest.Tools {
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if params, ok := tool.Function.Parameters.(map[string]any); ok {
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claudeTool := dto.Tool{
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Name: tool.Function.Name,
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Description: tool.Function.Description,
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}
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claudeTool.InputSchema = make(map[string]interface{})
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claudeTool.InputSchema["type"] = params["type"].(string)
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claudeTool.InputSchema["properties"] = params["properties"]
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claudeTool.InputSchema["required"] = params["required"]
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for s, a := range params {
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if s == "type" || s == "properties" || s == "required" {
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continue
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}
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claudeTool.InputSchema[s] = a
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}
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claudeTools = append(claudeTools, claudeTool)
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}
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}
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claudeRequest := dto.ClaudeRequest{
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Model: textRequest.Model,
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MaxTokens: textRequest.MaxTokens,
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StopSequences: nil,
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Temperature: textRequest.Temperature,
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TopP: textRequest.TopP,
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TopK: textRequest.TopK,
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Stream: textRequest.Stream,
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Tools: claudeTools,
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}
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if claudeRequest.MaxTokens == 0 {
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claudeRequest.MaxTokens = uint(model_setting.GetClaudeSettings().GetDefaultMaxTokens(textRequest.Model))
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}
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if model_setting.GetClaudeSettings().ThinkingAdapterEnabled &&
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strings.HasSuffix(textRequest.Model, "-thinking") {
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// 因为BudgetTokens 必须大于1024
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if claudeRequest.MaxTokens < 1280 {
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claudeRequest.MaxTokens = 1280
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}
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// BudgetTokens 为 max_tokens 的 80%
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claudeRequest.Thinking = &dto.Thinking{
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Type: "enabled",
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BudgetTokens: int(float64(claudeRequest.MaxTokens) * model_setting.GetClaudeSettings().ThinkingAdapterBudgetTokensPercentage),
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}
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// TODO: 临时处理
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// https://docs.anthropic.com/en/docs/build-with-claude/extended-thinking#important-considerations-when-using-extended-thinking
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claudeRequest.TopP = 0
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claudeRequest.Temperature = common.GetPointer[float64](1.0)
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claudeRequest.Model = strings.TrimSuffix(textRequest.Model, "-thinking")
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}
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if textRequest.Stop != nil {
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// stop maybe string/array string, convert to array string
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switch textRequest.Stop.(type) {
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case string:
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claudeRequest.StopSequences = []string{textRequest.Stop.(string)}
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case []interface{}:
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stopSequences := make([]string, 0)
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for _, stop := range textRequest.Stop.([]interface{}) {
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stopSequences = append(stopSequences, stop.(string))
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}
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claudeRequest.StopSequences = stopSequences
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}
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}
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formatMessages := make([]dto.Message, 0)
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lastMessage := dto.Message{
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Role: "tool",
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}
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for i, message := range textRequest.Messages {
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if message.Role == "" {
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textRequest.Messages[i].Role = "user"
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}
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fmtMessage := dto.Message{
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Role: message.Role,
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Content: message.Content,
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}
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if message.Role == "tool" {
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fmtMessage.ToolCallId = message.ToolCallId
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}
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if message.Role == "assistant" && message.ToolCalls != nil {
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fmtMessage.ToolCalls = message.ToolCalls
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}
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if lastMessage.Role == message.Role && lastMessage.Role != "tool" {
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if lastMessage.IsStringContent() && message.IsStringContent() {
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content, _ := json.Marshal(strings.Trim(fmt.Sprintf("%s %s", lastMessage.StringContent(), message.StringContent()), "\""))
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fmtMessage.Content = content
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// delete last message
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formatMessages = formatMessages[:len(formatMessages)-1]
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}
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}
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if fmtMessage.Content == nil {
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content, _ := json.Marshal("...")
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fmtMessage.Content = content
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}
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formatMessages = append(formatMessages, fmtMessage)
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lastMessage = fmtMessage
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}
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claudeMessages := make([]dto.ClaudeMessage, 0)
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isFirstMessage := true
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for _, message := range formatMessages {
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if message.Role == "system" {
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if message.IsStringContent() {
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claudeRequest.System = message.StringContent()
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} else {
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contents := message.ParseContent()
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content := ""
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for _, ctx := range contents {
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if ctx.Type == "text" {
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content += ctx.Text
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}
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}
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claudeRequest.System = content
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}
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} else {
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if isFirstMessage {
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isFirstMessage = false
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if message.Role != "user" {
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// fix: first message is assistant, add user message
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claudeMessage := dto.ClaudeMessage{
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Role: "user",
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Content: []dto.ClaudeMediaMessage{
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{
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Type: "text",
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Text: common.GetPointer[string]("..."),
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},
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},
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}
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claudeMessages = append(claudeMessages, claudeMessage)
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}
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}
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claudeMessage := dto.ClaudeMessage{
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Role: message.Role,
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}
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if message.Role == "tool" {
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if len(claudeMessages) > 0 && claudeMessages[len(claudeMessages)-1].Role == "user" {
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lastMessage := claudeMessages[len(claudeMessages)-1]
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if content, ok := lastMessage.Content.(string); ok {
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lastMessage.Content = []dto.ClaudeMediaMessage{
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{
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Type: "text",
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Text: common.GetPointer[string](content),
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},
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}
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}
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lastMessage.Content = append(lastMessage.Content.([]dto.ClaudeMediaMessage), dto.ClaudeMediaMessage{
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Type: "tool_result",
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ToolUseId: message.ToolCallId,
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Content: message.Content,
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})
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claudeMessages[len(claudeMessages)-1] = lastMessage
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continue
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} else {
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claudeMessage.Role = "user"
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claudeMessage.Content = []dto.ClaudeMediaMessage{
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{
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Type: "tool_result",
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ToolUseId: message.ToolCallId,
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Content: message.Content,
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},
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}
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}
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} else if message.IsStringContent() && message.ToolCalls == nil {
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claudeMessage.Content = message.StringContent()
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} else {
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claudeMediaMessages := make([]dto.ClaudeMediaMessage, 0)
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for _, mediaMessage := range message.ParseContent() {
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claudeMediaMessage := dto.ClaudeMediaMessage{
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Type: mediaMessage.Type,
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}
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if mediaMessage.Type == "text" {
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claudeMediaMessage.Text = common.GetPointer[string](mediaMessage.Text)
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} else {
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imageUrl := mediaMessage.ImageUrl.(dto.MessageImageUrl)
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claudeMediaMessage.Type = "image"
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claudeMediaMessage.Source = &dto.ClaudeMessageSource{
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Type: "base64",
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}
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// 判断是否是url
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if strings.HasPrefix(imageUrl.Url, "http") {
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// 是url，获取图片的类型和base64编码的数据
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fileData, err := service.GetFileBase64FromUrl(imageUrl.Url)
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if err != nil {
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return nil, fmt.Errorf("get file base64 from url failed: %s", err.Error())
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}
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claudeMediaMessage.Source.MediaType = fileData.MimeType
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claudeMediaMessage.Source.Data = fileData.Base64Data
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} else {
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_, format, base64String, err := service.DecodeBase64ImageData(imageUrl.Url)
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if err != nil {
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return nil, err
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}
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claudeMediaMessage.Source.MediaType = "image/" + format
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claudeMediaMessage.Source.Data = base64String
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}
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}
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claudeMediaMessages = append(claudeMediaMessages, claudeMediaMessage)
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}
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if message.ToolCalls != nil {
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for _, toolCall := range message.ParseToolCalls() {
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inputObj := make(map[string]any)
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if err := json.Unmarshal([]byte(toolCall.Function.Arguments), &inputObj); err != nil {
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common.SysError("tool call function arguments is not a map[string]any: " + fmt.Sprintf("%v", toolCall.Function.Arguments))
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continue
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}
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claudeMediaMessages = append(claudeMediaMessages, dto.ClaudeMediaMessage{
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Type: "tool_use",
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Id: toolCall.ID,
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Name: toolCall.Function.Name,
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Input: inputObj,
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})
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}
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}
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claudeMessage.Content = claudeMediaMessages
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}
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claudeMessages = append(claudeMessages, claudeMessage)
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}
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}
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claudeRequest.Prompt = ""
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claudeRequest.Messages = claudeMessages
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return &claudeRequest, nil
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}
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func StreamResponseClaude2OpenAI(reqMode int, claudeResponse *dto.ClaudeResponse) *dto.ChatCompletionsStreamResponse {
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var response dto.ChatCompletionsStreamResponse
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response.Object = "chat.completion.chunk"
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response.Model = claudeResponse.Model
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response.Choices = make([]dto.ChatCompletionsStreamResponseChoice, 0)
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tools := make([]dto.ToolCallResponse, 0)
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var choice dto.ChatCompletionsStreamResponseChoice
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if reqMode == RequestModeCompletion {
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choice.Delta.SetContentString(claudeResponse.Completion)
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finishReason := stopReasonClaude2OpenAI(claudeResponse.StopReason)
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if finishReason != "null" {
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choice.FinishReason = &finishReason
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}
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} else {
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if claudeResponse.Type == "message_start" {
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response.Id = claudeResponse.Message.Id
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response.Model = claudeResponse.Message.Model
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//claudeUsage = &claudeResponse.Message.Usage
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choice.Delta.SetContentString("")
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choice.Delta.Role = "assistant"
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} else if claudeResponse.Type == "content_block_start" {
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if claudeResponse.ContentBlock != nil {
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//choice.Delta.SetContentString(claudeResponse.ContentBlock.Text)
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if claudeResponse.ContentBlock.Type == "tool_use" {
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tools = append(tools, dto.ToolCallResponse{
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ID: claudeResponse.ContentBlock.Id,
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Type: "function",
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Function: dto.FunctionResponse{
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Name: claudeResponse.ContentBlock.Name,
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Arguments: "",
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},
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})
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}
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} else {
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return nil
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}
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} else if claudeResponse.Type == "content_block_delta" {
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if claudeResponse.Delta != nil {
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choice.Index = *claudeResponse.Index
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choice.Delta.Content = claudeResponse.Delta.Text
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switch claudeResponse.Delta.Type {
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case "input_json_delta":
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tools = append(tools, dto.ToolCallResponse{
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Function: dto.FunctionResponse{
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Arguments: *claudeResponse.Delta.PartialJson,
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},
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})
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case "signature_delta":
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// 加密的不处理
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signatureContent := "\n"
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choice.Delta.ReasoningContent = &signatureContent
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case "thinking_delta":
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thinkingContent := claudeResponse.Delta.Thinking
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choice.Delta.ReasoningContent = &thinkingContent
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}
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}
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} else if claudeResponse.Type == "message_delta" {
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finishReason := stopReasonClaude2OpenAI(*claudeResponse.Delta.StopReason)
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if finishReason != "null" {
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choice.FinishReason = &finishReason
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}
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//claudeUsage = &claudeResponse.Usage
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} else if claudeResponse.Type == "message_stop" {
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return nil
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} else {
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return nil
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}
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}
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if len(tools) > 0 {
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choice.Delta.Content = nil // compatible with other OpenAI derivative applications, like LobeOpenAICompatibleFactory ...
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choice.Delta.ToolCalls = tools
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}
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response.Choices = append(response.Choices, choice)
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return &response
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}
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func ResponseClaude2OpenAI(reqMode int, claudeResponse *dto.ClaudeResponse) *dto.OpenAITextResponse {
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choices := make([]dto.OpenAITextResponseChoice, 0)
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fullTextResponse := dto.OpenAITextResponse{
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Id: fmt.Sprintf("chatcmpl-%s", common.GetUUID()),
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Object: "chat.completion",
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Created: common.GetTimestamp(),
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}
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var responseText string
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var responseThinking string
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if len(claudeResponse.Content) > 0 {
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responseText = claudeResponse.Content[0].GetText()
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responseThinking = claudeResponse.Content[0].Thinking
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}
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tools := make([]dto.ToolCallResponse, 0)
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thinkingContent := ""
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if reqMode == RequestModeCompletion {
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content, _ := json.Marshal(strings.TrimPrefix(claudeResponse.Completion, " "))
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choice := dto.OpenAITextResponseChoice{
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Index: 0,
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Message: dto.Message{
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Role: "assistant",
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Content: content,
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Name: nil,
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},
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FinishReason: stopReasonClaude2OpenAI(claudeResponse.StopReason),
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}
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choices = append(choices, choice)
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} else {
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fullTextResponse.Id = claudeResponse.Id
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for _, message := range claudeResponse.Content {
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switch message.Type {
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case "tool_use":
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args, _ := json.Marshal(message.Input)
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tools = append(tools, dto.ToolCallResponse{
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ID: message.Id,
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Type: "function", // compatible with other OpenAI derivative applications
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Function: dto.FunctionResponse{
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Name: message.Name,
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Arguments: string(args),
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},
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})
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case "thinking":
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// 加密的不管， 只输出明文的推理过程
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thinkingContent = message.Thinking
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case "text":
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responseText = message.GetText()
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}
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}
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}
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choice := dto.OpenAITextResponseChoice{
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Index: 0,
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Message: dto.Message{
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Role: "assistant",
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},
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FinishReason: stopReasonClaude2OpenAI(claudeResponse.StopReason),
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}
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choice.SetStringContent(responseText)
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if len(responseThinking) > 0 {
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choice.ReasoningContent = responseThinking
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}
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if len(tools) > 0 {
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choice.Message.SetToolCalls(tools)
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}
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choice.Message.ReasoningContent = thinkingContent
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fullTextResponse.Model = claudeResponse.Model
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choices = append(choices, choice)
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fullTextResponse.Choices = choices
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return &fullTextResponse
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}
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type ClaudeResponseInfo struct {
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ResponseId string
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Created int64
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Model string
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ResponseText strings.Builder
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Usage *dto.Usage
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}
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func FormatClaudeResponseInfo(requestMode int, claudeResponse *dto.ClaudeResponse, oaiResponse *dto.ChatCompletionsStreamResponse, claudeInfo *ClaudeResponseInfo) bool {
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if requestMode == RequestModeCompletion {
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claudeInfo.ResponseText.WriteString(claudeResponse.Completion)
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} else {
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if claudeResponse.Type == "message_start" {
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// message_start, 获取usage
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claudeInfo.ResponseId = claudeResponse.Message.Id
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claudeInfo.Model = claudeResponse.Message.Model
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claudeInfo.Usage.PromptTokens = claudeResponse.Message.Usage.InputTokens
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} else if claudeResponse.Type == "content_block_delta" {
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if claudeResponse.Delta.Text != nil {
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claudeInfo.ResponseText.WriteString(*claudeResponse.Delta.Text)
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}
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} else if claudeResponse.Type == "message_delta" {
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claudeInfo.Usage.CompletionTokens = claudeResponse.Usage.OutputTokens
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if claudeResponse.Usage.InputTokens > 0 {
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claudeInfo.Usage.PromptTokens = claudeResponse.Usage.InputTokens
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}
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claudeInfo.Usage.TotalTokens = claudeInfo.Usage.PromptTokens + claudeResponse.Usage.OutputTokens
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} else if claudeResponse.Type == "content_block_start" {
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} else {
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return false
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}
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}
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if oaiResponse != nil {
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oaiResponse.Id = claudeInfo.ResponseId
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oaiResponse.Created = claudeInfo.Created
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oaiResponse.Model = claudeInfo.Model
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}
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return true
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}
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func ClaudeStreamHandler(c *gin.Context, resp *http.Response, info *relaycommon.RelayInfo, requestMode int) (*dto.OpenAIErrorWithStatusCode, *dto.Usage) {
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if info.RelayFormat == relaycommon.RelayFormatOpenAI {
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return toOpenAIStreamHandler(c, resp, info, requestMode)
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}
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usage := &dto.Usage{}
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responseText := strings.Builder{}
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helper.StreamScannerHandler(c, resp, info, func(data string) bool {
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var claudeResponse dto.ClaudeResponse
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err := json.NewDecoder(bytes.NewReader(common.StringToByteSlice(data))).Decode(&claudeResponse)
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if err != nil {
|
||
common.SysError("error unmarshalling stream response: " + err.Error())
|
||
return true
|
||
}
|
||
if requestMode == RequestModeCompletion {
|
||
responseText.WriteString(claudeResponse.Completion)
|
||
} else {
|
||
if claudeResponse.Type == "message_start" {
|
||
// message_start, 获取usage
|
||
info.UpstreamModelName = claudeResponse.Message.Model
|
||
usage.PromptTokens = claudeResponse.Message.Usage.InputTokens
|
||
usage.PromptTokensDetails.CachedTokens = claudeResponse.Message.Usage.CacheReadInputTokens
|
||
usage.PromptTokensDetails.CachedCreationTokens = claudeResponse.Message.Usage.CacheCreationInputTokens
|
||
usage.CompletionTokens = claudeResponse.Message.Usage.OutputTokens
|
||
} else if claudeResponse.Type == "content_block_delta" {
|
||
responseText.WriteString(claudeResponse.Delta.GetText())
|
||
} else if claudeResponse.Type == "message_delta" {
|
||
if claudeResponse.Usage.InputTokens > 0 {
|
||
// 不叠加，只取最新的
|
||
usage.PromptTokens = claudeResponse.Usage.InputTokens
|
||
}
|
||
usage.CompletionTokens = claudeResponse.Usage.OutputTokens
|
||
usage.TotalTokens = usage.PromptTokens + usage.CompletionTokens
|
||
}
|
||
}
|
||
helper.ClaudeChunkData(c, claudeResponse, data)
|
||
return true
|
||
})
|
||
|
||
if requestMode == RequestModeCompletion {
|
||
usage, _ = service.ResponseText2Usage(responseText.String(), info.UpstreamModelName, info.PromptTokens)
|
||
} else {
|
||
// 说明流模式建立失败，可能为官方出错
|
||
if usage.PromptTokens == 0 {
|
||
//usage.PromptTokens = info.PromptTokens
|
||
}
|
||
if usage.CompletionTokens == 0 {
|
||
usage, _ = service.ResponseText2Usage(responseText.String(), info.UpstreamModelName, usage.PromptTokens)
|
||
}
|
||
}
|
||
return nil, usage
|
||
}
|
||
|
||
func toOpenAIStreamHandler(c *gin.Context, resp *http.Response, info *relaycommon.RelayInfo, requestMode int) (*dto.OpenAIErrorWithStatusCode, *dto.Usage) {
|
||
responseId := fmt.Sprintf("chatcmpl-%s", common.GetUUID())
|
||
claudeInfo := &ClaudeResponseInfo{
|
||
ResponseId: responseId,
|
||
Created: common.GetTimestamp(),
|
||
Model: info.UpstreamModelName,
|
||
ResponseText: strings.Builder{},
|
||
Usage: &dto.Usage{},
|
||
}
|
||
|
||
helper.StreamScannerHandler(c, resp, info, func(data string) bool {
|
||
var claudeResponse dto.ClaudeResponse
|
||
err := json.NewDecoder(bytes.NewReader(common.StringToByteSlice(data))).Decode(&claudeResponse)
|
||
if err != nil {
|
||
common.SysError("error unmarshalling stream response: " + err.Error())
|
||
return true
|
||
}
|
||
|
||
response := StreamResponseClaude2OpenAI(requestMode, &claudeResponse)
|
||
|
||
if !FormatClaudeResponseInfo(requestMode, &claudeResponse, response, claudeInfo) {
|
||
return true
|
||
}
|
||
|
||
err = helper.ObjectData(c, response)
|
||
if err != nil {
|
||
common.LogError(c, "send_stream_response_failed: "+err.Error())
|
||
}
|
||
return true
|
||
})
|
||
|
||
if requestMode == RequestModeCompletion {
|
||
claudeInfo.Usage, _ = service.ResponseText2Usage(claudeInfo.ResponseText.String(), info.UpstreamModelName, info.PromptTokens)
|
||
} else {
|
||
if claudeInfo.Usage.PromptTokens == 0 {
|
||
//上游出错
|
||
}
|
||
if claudeInfo.Usage.CompletionTokens == 0 {
|
||
claudeInfo.Usage, _ = service.ResponseText2Usage(claudeInfo.ResponseText.String(), info.UpstreamModelName, claudeInfo.Usage.PromptTokens)
|
||
}
|
||
}
|
||
if info.ShouldIncludeUsage {
|
||
response := helper.GenerateFinalUsageResponse(responseId, claudeInfo.Created, info.UpstreamModelName, *claudeInfo.Usage)
|
||
err := helper.ObjectData(c, response)
|
||
if err != nil {
|
||
common.SysError("send final response failed: " + err.Error())
|
||
}
|
||
}
|
||
helper.Done(c)
|
||
return nil, claudeInfo.Usage
|
||
}
|
||
|
||
func ClaudeHandler(c *gin.Context, resp *http.Response, requestMode int, info *relaycommon.RelayInfo) (*dto.OpenAIErrorWithStatusCode, *dto.Usage) {
|
||
responseBody, err := io.ReadAll(resp.Body)
|
||
if err != nil {
|
||
return service.OpenAIErrorWrapper(err, "read_response_body_failed", http.StatusInternalServerError), nil
|
||
}
|
||
err = resp.Body.Close()
|
||
if err != nil {
|
||
return service.OpenAIErrorWrapper(err, "close_response_body_failed", http.StatusInternalServerError), nil
|
||
}
|
||
if common.DebugEnabled {
|
||
println("responseBody: ", string(responseBody))
|
||
}
|
||
var claudeResponse dto.ClaudeResponse
|
||
err = json.Unmarshal(responseBody, &claudeResponse)
|
||
if err != nil {
|
||
return service.OpenAIErrorWrapper(err, "unmarshal_response_body_failed", http.StatusInternalServerError), nil
|
||
}
|
||
if claudeResponse.Error.Type != "" {
|
||
return &dto.OpenAIErrorWithStatusCode{
|
||
Error: dto.OpenAIError{
|
||
Message: claudeResponse.Error.Message,
|
||
Type: claudeResponse.Error.Type,
|
||
Param: "",
|
||
Code: claudeResponse.Error.Type,
|
||
},
|
||
StatusCode: resp.StatusCode,
|
||
}, nil
|
||
}
|
||
usage := dto.Usage{}
|
||
if requestMode == RequestModeCompletion {
|
||
completionTokens, err := service.CountTextToken(claudeResponse.Completion, info.OriginModelName)
|
||
if err != nil {
|
||
return service.OpenAIErrorWrapper(err, "count_token_text_failed", http.StatusInternalServerError), nil
|
||
}
|
||
usage.PromptTokens = info.PromptTokens
|
||
usage.CompletionTokens = completionTokens
|
||
usage.TotalTokens = info.PromptTokens + completionTokens
|
||
} else {
|
||
usage.PromptTokens = claudeResponse.Usage.InputTokens
|
||
usage.CompletionTokens = claudeResponse.Usage.OutputTokens
|
||
usage.TotalTokens = claudeResponse.Usage.InputTokens + claudeResponse.Usage.OutputTokens
|
||
usage.PromptTokensDetails.CachedTokens = claudeResponse.Usage.CacheReadInputTokens
|
||
usage.PromptTokensDetails.CachedCreationTokens = claudeResponse.Usage.CacheCreationInputTokens
|
||
}
|
||
var responseData []byte
|
||
switch info.RelayFormat {
|
||
case relaycommon.RelayFormatOpenAI:
|
||
openaiResponse := ResponseClaude2OpenAI(requestMode, &claudeResponse)
|
||
openaiResponse.Usage = usage
|
||
responseData, err = json.Marshal(openaiResponse)
|
||
if err != nil {
|
||
return service.OpenAIErrorWrapper(err, "marshal_response_body_failed", http.StatusInternalServerError), nil
|
||
}
|
||
case relaycommon.RelayFormatClaude:
|
||
responseData = responseBody
|
||
}
|
||
c.Writer.Header().Set("Content-Type", "application/json")
|
||
c.Writer.WriteHeader(resp.StatusCode)
|
||
_, err = c.Writer.Write(responseData)
|
||
return nil, &usage
|
||
}
|