mirror of
https://github.com/router-for-me/CLIProxyAPI.git
synced 2026-02-03 13:00:52 +08:00
262 lines
8.2 KiB
Go
262 lines
8.2 KiB
Go
package executor
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import (
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"bufio"
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"bytes"
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"context"
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"fmt"
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"io"
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"net/http"
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"strings"
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"time"
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iflowauth "github.com/router-for-me/CLIProxyAPI/v6/internal/auth/iflow"
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"github.com/router-for-me/CLIProxyAPI/v6/internal/config"
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cliproxyauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"
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cliproxyexecutor "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/executor"
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sdktranslator "github.com/router-for-me/CLIProxyAPI/v6/sdk/translator"
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log "github.com/sirupsen/logrus"
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"github.com/tidwall/gjson"
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"github.com/tidwall/sjson"
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)
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const (
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iflowDefaultEndpoint = "/chat/completions"
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iflowUserAgent = "iFlow-Cli"
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)
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// IFlowExecutor executes OpenAI-compatible chat completions against the iFlow API using API keys derived from OAuth.
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type IFlowExecutor struct {
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cfg *config.Config
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}
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// NewIFlowExecutor constructs a new executor instance.
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func NewIFlowExecutor(cfg *config.Config) *IFlowExecutor { return &IFlowExecutor{cfg: cfg} }
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// Identifier returns the provider key.
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func (e *IFlowExecutor) Identifier() string { return "iflow" }
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// PrepareRequest implements ProviderExecutor but requires no preprocessing.
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func (e *IFlowExecutor) PrepareRequest(_ *http.Request, _ *cliproxyauth.Auth) error { return nil }
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// Execute performs a non-streaming chat completion request.
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func (e *IFlowExecutor) Execute(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (cliproxyexecutor.Response, error) {
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apiKey, baseURL := iflowCreds(auth)
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if strings.TrimSpace(apiKey) == "" {
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return cliproxyexecutor.Response{}, fmt.Errorf("iflow executor: missing api key")
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}
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if baseURL == "" {
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baseURL = iflowauth.DefaultAPIBaseURL
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}
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reporter := newUsageReporter(ctx, e.Identifier(), req.Model, auth)
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from := opts.SourceFormat
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to := sdktranslator.FromString("openai")
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body := sdktranslator.TranslateRequest(from, to, req.Model, bytes.Clone(req.Payload), false)
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endpoint := strings.TrimSuffix(baseURL, "/") + iflowDefaultEndpoint
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recordAPIRequest(ctx, e.cfg, body)
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httpReq, err := http.NewRequestWithContext(ctx, http.MethodPost, endpoint, bytes.NewReader(body))
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if err != nil {
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return cliproxyexecutor.Response{}, err
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}
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applyIFlowHeaders(httpReq, apiKey, false)
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httpClient := newProxyAwareHTTPClient(ctx, e.cfg, auth, 0)
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resp, err := httpClient.Do(httpReq)
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if err != nil {
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return cliproxyexecutor.Response{}, err
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}
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defer func() { _ = resp.Body.Close() }()
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if resp.StatusCode < 200 || resp.StatusCode >= 300 {
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b, _ := io.ReadAll(resp.Body)
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appendAPIResponseChunk(ctx, e.cfg, b)
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log.Debugf("iflow request error: status %d body %s", resp.StatusCode, string(b))
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return cliproxyexecutor.Response{}, statusErr{code: resp.StatusCode, msg: string(b)}
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}
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data, err := io.ReadAll(resp.Body)
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if err != nil {
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return cliproxyexecutor.Response{}, err
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}
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appendAPIResponseChunk(ctx, e.cfg, data)
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reporter.publish(ctx, parseOpenAIUsage(data))
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var param any
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out := sdktranslator.TranslateNonStream(ctx, to, from, req.Model, bytes.Clone(opts.OriginalRequest), body, data, ¶m)
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return cliproxyexecutor.Response{Payload: []byte(out)}, nil
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}
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// ExecuteStream performs a streaming chat completion request.
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func (e *IFlowExecutor) ExecuteStream(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (<-chan cliproxyexecutor.StreamChunk, error) {
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apiKey, baseURL := iflowCreds(auth)
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if strings.TrimSpace(apiKey) == "" {
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return nil, fmt.Errorf("iflow executor: missing api key")
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}
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if baseURL == "" {
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baseURL = iflowauth.DefaultAPIBaseURL
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}
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reporter := newUsageReporter(ctx, e.Identifier(), req.Model, auth)
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from := opts.SourceFormat
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to := sdktranslator.FromString("openai")
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body := sdktranslator.TranslateRequest(from, to, req.Model, bytes.Clone(req.Payload), true)
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// Ensure tools array exists to avoid provider quirks similar to Qwen's behaviour.
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toolsResult := gjson.GetBytes(body, "tools")
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if toolsResult.Exists() && toolsResult.IsArray() && len(toolsResult.Array()) == 0 {
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body = ensureToolsArray(body)
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}
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endpoint := strings.TrimSuffix(baseURL, "/") + iflowDefaultEndpoint
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recordAPIRequest(ctx, e.cfg, body)
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httpReq, err := http.NewRequestWithContext(ctx, http.MethodPost, endpoint, bytes.NewReader(body))
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if err != nil {
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return nil, err
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}
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applyIFlowHeaders(httpReq, apiKey, true)
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httpClient := newProxyAwareHTTPClient(ctx, e.cfg, auth, 0)
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resp, err := httpClient.Do(httpReq)
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if err != nil {
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return nil, err
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}
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if resp.StatusCode < 200 || resp.StatusCode >= 300 {
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defer func() { _ = resp.Body.Close() }()
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b, _ := io.ReadAll(resp.Body)
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appendAPIResponseChunk(ctx, e.cfg, b)
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log.Debugf("iflow streaming error: status %d body %s", resp.StatusCode, string(b))
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return nil, statusErr{code: resp.StatusCode, msg: string(b)}
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}
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out := make(chan cliproxyexecutor.StreamChunk)
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go func() {
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defer close(out)
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defer func() { _ = resp.Body.Close() }()
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scanner := bufio.NewScanner(resp.Body)
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buf := make([]byte, 1024*1024)
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scanner.Buffer(buf, 1024*1024)
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var param any
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for scanner.Scan() {
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line := scanner.Bytes()
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appendAPIResponseChunk(ctx, e.cfg, line)
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if detail, ok := parseOpenAIStreamUsage(line); ok {
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reporter.publish(ctx, detail)
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}
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chunks := sdktranslator.TranslateStream(ctx, to, from, req.Model, bytes.Clone(opts.OriginalRequest), body, bytes.Clone(line), ¶m)
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for i := range chunks {
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out <- cliproxyexecutor.StreamChunk{Payload: []byte(chunks[i])}
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}
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}
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if err := scanner.Err(); err != nil {
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out <- cliproxyexecutor.StreamChunk{Err: err}
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}
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}()
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return out, nil
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}
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// CountTokens is not implemented for iFlow.
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func (e *IFlowExecutor) CountTokens(context.Context, *cliproxyauth.Auth, cliproxyexecutor.Request, cliproxyexecutor.Options) (cliproxyexecutor.Response, error) {
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return cliproxyexecutor.Response{Payload: nil}, fmt.Errorf("not implemented")
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}
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// Refresh refreshes OAuth tokens and updates the stored API key.
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func (e *IFlowExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (*cliproxyauth.Auth, error) {
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log.Debugf("iflow executor: refresh called")
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if auth == nil {
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return nil, fmt.Errorf("iflow executor: auth is nil")
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}
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refreshToken := ""
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if auth.Metadata != nil {
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if v, ok := auth.Metadata["refresh_token"].(string); ok {
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refreshToken = strings.TrimSpace(v)
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}
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}
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if refreshToken == "" {
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return auth, nil
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}
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svc := iflowauth.NewIFlowAuth(e.cfg)
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tokenData, err := svc.RefreshTokens(ctx, refreshToken)
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if err != nil {
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return nil, err
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}
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if auth.Metadata == nil {
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auth.Metadata = make(map[string]any)
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}
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auth.Metadata["access_token"] = tokenData.AccessToken
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if tokenData.RefreshToken != "" {
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auth.Metadata["refresh_token"] = tokenData.RefreshToken
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}
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if tokenData.APIKey != "" {
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auth.Metadata["api_key"] = tokenData.APIKey
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}
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auth.Metadata["expired"] = tokenData.Expire
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auth.Metadata["type"] = "iflow"
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auth.Metadata["last_refresh"] = time.Now().Format(time.RFC3339)
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if auth.Attributes == nil {
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auth.Attributes = make(map[string]string)
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}
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if tokenData.APIKey != "" {
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auth.Attributes["api_key"] = tokenData.APIKey
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}
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return auth, nil
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}
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func applyIFlowHeaders(r *http.Request, apiKey string, stream bool) {
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r.Header.Set("Content-Type", "application/json")
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r.Header.Set("Authorization", "Bearer "+apiKey)
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r.Header.Set("User-Agent", iflowUserAgent)
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if stream {
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r.Header.Set("Accept", "text/event-stream")
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} else {
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r.Header.Set("Accept", "application/json")
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}
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}
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func iflowCreds(a *cliproxyauth.Auth) (apiKey, baseURL string) {
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if a == nil {
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return "", ""
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}
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if a.Attributes != nil {
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if v := strings.TrimSpace(a.Attributes["api_key"]); v != "" {
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apiKey = v
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}
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if v := strings.TrimSpace(a.Attributes["base_url"]); v != "" {
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baseURL = v
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}
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}
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if apiKey == "" && a.Metadata != nil {
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if v, ok := a.Metadata["api_key"].(string); ok {
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apiKey = strings.TrimSpace(v)
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}
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}
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if baseURL == "" && a.Metadata != nil {
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if v, ok := a.Metadata["base_url"].(string); ok {
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baseURL = strings.TrimSpace(v)
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}
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}
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return apiKey, baseURL
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}
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func ensureToolsArray(body []byte) []byte {
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placeholder := `[{"type":"function","function":{"name":"noop","description":"Placeholder tool to stabilise streaming","parameters":{"type":"object"}}}]`
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updated, err := sjson.SetRawBytes(body, "tools", []byte(placeholder))
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if err != nil {
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return body
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}
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return updated
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}
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