mirror of
https://github.com/router-for-me/CLIProxyAPI.git
synced 2026-02-02 20:40:52 +08:00
Add openai codex support
This commit is contained in:
Luis Pater
199
internal/translator/codex/gemini/codex_gemini_request.go
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199
internal/translator/codex/gemini/codex_gemini_request.go
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// Package code provides request translation functionality for Claude API.
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// It handles parsing and transforming Claude API requests into the internal client format,
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// extracting model information, system instructions, message contents, and tool declarations.
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// The package also performs JSON data cleaning and transformation to ensure compatibility
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// between Claude API format and the internal client's expected format.
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package code
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import (
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"crypto/rand"
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"math/big"
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"strings"
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"github.com/luispater/CLIProxyAPI/internal/misc"
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"github.com/tidwall/gjson"
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"github.com/tidwall/sjson"
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)
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// PrepareClaudeRequest parses and transforms a Claude API request into internal client format.
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// It extracts the model name, system instruction, message contents, and tool declarations
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// from the raw JSON request and returns them in the format expected by the internal client.
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func ConvertGeminiRequestToCodex(rawJSON []byte) string {
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// Base template
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out := `{"model":"","instructions":"","input":[]}`
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// Inject standard Codex instructions
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instructions := misc.CodexInstructions
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out, _ = sjson.SetRaw(out, "instructions", instructions)
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root := gjson.ParseBytes(rawJSON)
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// helper for generating paired call IDs in the form: call_<alphanum>
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// Gemini uses sequential pairing across possibly multiple in-flight
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// functionCalls, so we keep a FIFO queue of generated call IDs and
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// consume them in order when functionResponses arrive.
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var pendingCallIDs []string
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// genCallID creates a random call id like: call_<8chars>
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genCallID := func() string {
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const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
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var b strings.Builder
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// 8 chars random suffix
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for i := 0; i < 24; i++ {
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n, _ := rand.Int(rand.Reader, big.NewInt(int64(len(letters))))
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b.WriteByte(letters[n.Int64()])
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}
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return "call_" + b.String()
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}
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// Model
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if v := root.Get("model"); v.Exists() {
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out, _ = sjson.Set(out, "model", v.Value())
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}
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// System instruction -> as a user message with input_text parts
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sysParts := root.Get("system_instruction.parts")
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if sysParts.IsArray() {
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msg := `{"type":"message","role":"user","content":[]}`
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arr := sysParts.Array()
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for i := 0; i < len(arr); i++ {
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p := arr[i]
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if t := p.Get("text"); t.Exists() {
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part := `{}`
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part, _ = sjson.Set(part, "type", "input_text")
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part, _ = sjson.Set(part, "text", t.String())
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msg, _ = sjson.SetRaw(msg, "content.-1", part)
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}
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}
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if len(gjson.Get(msg, "content").Array()) > 0 {
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out, _ = sjson.SetRaw(out, "input.-1", msg)
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}
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}
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// Contents -> messages and function calls/results
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contents := root.Get("contents")
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if contents.IsArray() {
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items := contents.Array()
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for i := 0; i < len(items); i++ {
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item := items[i]
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role := item.Get("role").String()
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if role == "model" {
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role = "assistant"
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}
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parts := item.Get("parts")
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if !parts.IsArray() {
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continue
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}
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parr := parts.Array()
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for j := 0; j < len(parr); j++ {
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p := parr[j]
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// text part
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if t := p.Get("text"); t.Exists() {
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msg := `{"type":"message","role":"","content":[]}`
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msg, _ = sjson.Set(msg, "role", role)
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partType := "input_text"
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if role == "assistant" {
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partType = "output_text"
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}
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part := `{}`
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part, _ = sjson.Set(part, "type", partType)
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part, _ = sjson.Set(part, "text", t.String())
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msg, _ = sjson.SetRaw(msg, "content.-1", part)
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out, _ = sjson.SetRaw(out, "input.-1", msg)
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continue
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}
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// function call from model
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if fc := p.Get("functionCall"); fc.Exists() {
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fn := `{"type":"function_call"}`
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if name := fc.Get("name"); name.Exists() {
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fn, _ = sjson.Set(fn, "name", name.String())
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}
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if args := fc.Get("args"); args.Exists() {
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fn, _ = sjson.Set(fn, "arguments", args.Raw)
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}
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// generate a paired random call_id and enqueue it so the
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// corresponding functionResponse can pop the earliest id
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// to preserve ordering when multiple calls are present.
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id := genCallID()
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fn, _ = sjson.Set(fn, "call_id", id)
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pendingCallIDs = append(pendingCallIDs, id)
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out, _ = sjson.SetRaw(out, "input.-1", fn)
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continue
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}
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// function response from user
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if fr := p.Get("functionResponse"); fr.Exists() {
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fno := `{"type":"function_call_output"}`
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// Prefer a string result if present; otherwise embed the raw response as a string
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if res := fr.Get("response.result"); res.Exists() {
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fno, _ = sjson.Set(fno, "output", res.String())
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} else if resp := fr.Get("response"); resp.Exists() {
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fno, _ = sjson.Set(fno, "output", resp.Raw)
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}
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// fno, _ = sjson.Set(fno, "call_id", "call_W6nRJzFXyPM2LFBbfo98qAbq")
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// attach the oldest queued call_id to pair the response
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// with its call. If the queue is empty, generate a new id.
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var id string
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if len(pendingCallIDs) > 0 {
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id = pendingCallIDs[0]
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// pop the first element
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pendingCallIDs = pendingCallIDs[1:]
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} else {
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id = genCallID()
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}
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fno, _ = sjson.Set(fno, "call_id", id)
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out, _ = sjson.SetRaw(out, "input.-1", fno)
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continue
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}
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}
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}
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}
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// Tools mapping: Gemini functionDeclarations -> Codex tools
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tools := root.Get("tools")
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if tools.IsArray() {
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out, _ = sjson.SetRaw(out, "tools", `[]`)
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out, _ = sjson.Set(out, "tool_choice", "auto")
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tarr := tools.Array()
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for i := 0; i < len(tarr); i++ {
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td := tarr[i]
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fns := td.Get("functionDeclarations")
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if !fns.IsArray() {
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continue
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}
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farr := fns.Array()
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for j := 0; j < len(farr); j++ {
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fn := farr[j]
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tool := `{}`
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tool, _ = sjson.Set(tool, "type", "function")
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if v := fn.Get("name"); v.Exists() {
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tool, _ = sjson.Set(tool, "name", v.String())
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}
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if v := fn.Get("description"); v.Exists() {
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tool, _ = sjson.Set(tool, "description", v.String())
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}
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if prm := fn.Get("parameters"); prm.Exists() {
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// Remove optional $schema field if present
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cleaned := prm.Raw
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cleaned, _ = sjson.Delete(cleaned, "$schema")
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cleaned, _ = sjson.Set(cleaned, "additionalProperties", false)
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tool, _ = sjson.SetRaw(tool, "parameters", cleaned)
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}
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tool, _ = sjson.Set(tool, "strict", false)
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out, _ = sjson.SetRaw(out, "tools.-1", tool)
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}
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}
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}
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// Fixed flags aligning with Codex expectations
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out, _ = sjson.Set(out, "parallel_tool_calls", true)
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out, _ = sjson.Set(out, "reasoning.effort", "low")
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out, _ = sjson.Set(out, "reasoning.summary", "auto")
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out, _ = sjson.Set(out, "stream", true)
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out, _ = sjson.Set(out, "store", false)
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out, _ = sjson.Set(out, "include", []string{"reasoning.encrypted_content"})
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return out
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}
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