first commit

Author: leookun

.gitignore

@@ -0,0 +1,42 @@
+# Binaries
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+puter2api
+puter2api.db
+
+# Test binary
+*.test
+
+# Output of go coverage
+*.out
+
+# Go workspace
+go.work
+go.work.sum
+
+# Dependency directories
+vendor/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Environment
+.env
+.env.local
+
+# Logs
+*.log
+
+# Database
+*.db

go.mod

@@ -0,0 +1,33 @@
+module puter2api
+
+go 1.21
+
+require github.com/gin-gonic/gin v1.9.1
+
+require (
+	github.com/bytedance/sonic v1.9.1 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.14.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.4 // indirect
+	github.com/leodido/go-urn v1.2.4 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/mattn/go-sqlite3 v1.14.32 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.8 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.11 // indirect
+	golang.org/x/arch v0.3.0 // indirect
+	golang.org/x/crypto v0.9.0 // indirect
+	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/sys v0.8.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,88 @@
+github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM=
+github.com/bytedance/sonic v1.9.1 h1:6iJ6NqdoxCDr6mbY8h18oSO+cShGSMRGCEo7F2h0x8s=
+github.com/bytedance/sonic v1.9.1/go.mod h1:i736AoUSYt75HyZLoJW9ERYxcy6eaN6h4BZXU064P/U=
+github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY=
+github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 h1:qSGYFH7+jGhDF8vLC+iwCD4WpbV1EBDSzWkJODFLams=
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+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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internal/claude/converter.go

@@ -0,0 +1,100 @@
+package claude
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"puter2api/internal/types"
+)
+
+// GetMessageText 获取消息文本内容
+func GetMessageText(m *types.ClaudeMessage) string {
+	var text string
+	if err := json.Unmarshal(m.Content, &text); err == nil {
+		return text
+	}
+
+	var blocks []types.ContentBlock
+	if err := json.Unmarshal(m.Content, &blocks); err == nil {
+		var result string
+		for _, b := range blocks {
+			switch b.Type {
+			case "text":
+				result += b.Text
+			case "tool_use":
+				inputStr, _ := json.Marshal(b.Input)
+				result += fmt.Sprintf("\n<tool_call>\n{\"name\": \"%s\", \"id\": \"%s\", \"input\": %s}\n</tool_call>\n", b.Name, b.ID, string(inputStr))
+			case "tool_result":
+				var contentStr string
+				if err := json.Unmarshal(b.Content, &contentStr); err != nil {
+					contentStr = string(b.Content)
+				}
+				result += fmt.Sprintf("\n<tool_result id=\"%s\">\n%s\n</tool_result>\n", b.ToolUseID, contentStr)
+			}
+		}
+		return result
+	}
+	return ""
+}
+
+// BuildSystemPrompt 构建包含工具定义的 system prompt
+func BuildSystemPrompt(originalSystem json.RawMessage, tools json.RawMessage) string {
+	var systemText string
+
+	if len(originalSystem) > 0 {
+		var sysStr string
+		if err := json.Unmarshal(originalSystem, &sysStr); err == nil {
+			systemText = sysStr
+		} else {
+			var sysBlocks []types.ContentBlock
+			if err := json.Unmarshal(originalSystem, &sysBlocks); err == nil {
+				for _, b := range sysBlocks {
+					if b.Type == "text" {
+						systemText += b.Text + "\n"
+					}
+				}
+			}
+		}
+	}
+
+	if len(tools) > 0 {
+		var toolDefs []types.ToolDef
+		if err := json.Unmarshal(tools, &toolDefs); err == nil && len(toolDefs) > 0 {
+			toolPrompt := "\n\n# Tools\n\nYou have access to the following tools. When you need to use a tool, output it in this EXACT format:\n\n<tool_call>\n{\"name\": \"tool_name\", \"input\": {\"param\": \"value\"}}\n</tool_call>\n\nAvailable tools:\n\n"
+			for _, tool := range toolDefs {
+				toolPrompt += fmt.Sprintf("## %s\n", tool.Name)
+				if tool.Description != "" {
+					toolPrompt += fmt.Sprintf("%s\n", tool.Description)
+				}
+				if len(tool.InputSchema) > 0 {
+					toolPrompt += fmt.Sprintf("Input schema: %s\n", string(tool.InputSchema))
+				}
+				toolPrompt += "\n"
+			}
+			systemText += toolPrompt
+		}
+	}
+
+	return systemText
+}
+
+// ConvertMessages 转换 Claude 消息为 Puter 消息
+func ConvertMessages(messages []types.ClaudeMessage, systemPrompt string) []types.PuterMessage {
+	var result []types.PuterMessage
+
+	if systemPrompt != "" {
+		result = append(result, types.PuterMessage{
+			Role:    "system",
+			Content: systemPrompt,
+		})
+	}
+
+	for _, m := range messages {
+		result = append(result, types.PuterMessage{
+			Role:    m.Role,
+			Content: GetMessageText(&m),
+		})
+	}
+	return result
+}
+

internal/claude/parser.go

@@ -0,0 +1,35 @@
+package claude
+
+import (
+	"encoding/json"
+	"fmt"
+	"regexp"
+	"strings"
+	"time"
+
+	"puter2api/internal/types"
+)
+
+// ParseToolCalls 解析文本中的工具调用
+func ParseToolCalls(text string) ([]types.ParsedToolCall, string) {
+	re := regexp.MustCompile(`(?s)<tool_call>\s*(\{.*?\})\s*</tool_call>`)
+	matches := re.FindAllStringSubmatch(text, -1)
+
+	var calls []types.ParsedToolCall
+	remainingText := text
+
+	for i, match := range matches {
+		var call types.ParsedToolCall
+		if err := json.Unmarshal([]byte(match[1]), &call); err == nil {
+			if call.ID == "" {
+				call.ID = fmt.Sprintf("toolu_%d_%d", time.Now().UnixNano(), i)
+			}
+			calls = append(calls, call)
+			remainingText = strings.Replace(remainingText, match[0], "", 1)
+		}
+	}
+
+	remainingText = strings.TrimSpace(remainingText)
+	return calls, remainingText
+}
+