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feat: add sys.model.provider.credential
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| package llm | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/json" | ||
| "io" | ||
| "net" | ||
| "net/http" | ||
| "net/http/httputil" | ||
| "net/url" | ||
| "path" | ||
| "strings" | ||
|
|
||
| "github.com/gptscript-ai/gptscript/pkg/builtin" | ||
| "github.com/gptscript-ai/gptscript/pkg/openai" | ||
| ) | ||
|
|
||
| func (r *Registry) ProxyInfo() (string, string, error) { | ||
| r.proxyLock.Lock() | ||
| defer r.proxyLock.Unlock() | ||
|
|
||
| if r.proxyURL != "" { | ||
| return r.proxyToken, r.proxyURL, nil | ||
| } | ||
|
|
||
| l, err := net.Listen("tcp", "127.0.0.1:0") | ||
| if err != nil { | ||
| return "", "", err | ||
| } | ||
|
|
||
| go func() { | ||
| _ = http.Serve(l, r) | ||
| r.proxyLock.Lock() | ||
| defer r.proxyLock.Unlock() | ||
| _ = l.Close() | ||
| r.proxyURL = "" | ||
| }() | ||
|
|
||
| r.proxyURL = "http://" + l.Addr().String() | ||
| return r.proxyToken, r.proxyURL, nil | ||
| } | ||
|
|
||
| func (r *Registry) ServeHTTP(w http.ResponseWriter, req *http.Request) { | ||
| if r.proxyToken != strings.TrimPrefix(req.Header.Get("Authorization"), "Bearer ") { | ||
| http.Error(w, http.StatusText(http.StatusUnauthorized), http.StatusUnauthorized) | ||
| return | ||
| } | ||
|
|
||
| inBytes, err := io.ReadAll(req.Body) | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusBadRequest) | ||
| return | ||
| } | ||
|
|
||
| var ( | ||
| model string | ||
| data = map[string]any{} | ||
| ) | ||
|
|
||
| if json.Unmarshal(inBytes, &data) == nil { | ||
| model, _ = data["model"].(string) | ||
| } | ||
|
|
||
| if model == "" { | ||
| model = builtin.GetDefaultModel() | ||
| } | ||
|
|
||
| c, err := r.getClient(req.Context(), model) | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| oai, ok := c.(*openai.Client) | ||
| if !ok { | ||
| http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound) | ||
| return | ||
| } | ||
|
|
||
| auth, targetURL := oai.ProxyInfo() | ||
| if targetURL == "" { | ||
| http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound) | ||
| return | ||
| } | ||
|
|
||
| newURL, err := url.Parse(targetURL) | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| newURL.Path = path.Join(newURL.Path, req.URL.Path) | ||
|
|
||
| rp := httputil.ReverseProxy{ | ||
| Director: func(proxyReq *http.Request) { | ||
| proxyReq.Body = io.NopCloser(bytes.NewReader(inBytes)) | ||
| proxyReq.URL = newURL | ||
| proxyReq.Header.Del("Authorization") | ||
| proxyReq.Header.Add("Authorization", "Bearer "+auth) | ||
| proxyReq.Host = newURL.Hostname() | ||
| }, | ||
| } | ||
| rp.ServeHTTP(w, req) | ||
| } |
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