mirror of
https://gitcode.com/JianFeeeee/ModelRouter.git
synced 2026-09-19 16:39:15 +00:00
77b00bfe3f
Prerequisite for removing the nginx global-auth layer in front of the gateway: llmsproxy must defend its own login endpoint. Design: - per-IP failure counter: 5 consecutive failures trigger an exponential lockout (30s base, doubling per extra burst, capped at 30min); 15min of quiet forgives the counter - global budget: max 100 failures/minute across all IPs so a distributed spray cannot outrun per-IP windows - locked-out and over-budget attempts get the SAME 'invalid gateway api key' 401 as normal failures — no oracle to probe lockout state, no info leak on key validity timing - successful login clears the IP's counter entirely - clientIP(): prefers X-Real-IP (trusted nginx proxy), falls back to RemoteAddr host Tests: lockout engages at threshold with identical replies, valid keys rejected while locked, other IPs unaffected, success resets counters, X-Real-IP extraction.
626 lines
20 KiB
Go
626 lines
20 KiB
Go
// Package gateway exposes an OpenAI-compatible HTTP API over the provider
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// registry: POST /v1/chat/completions (SDK + SSE), POST /v1/images/generations,
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// GET /v1/models, protected by shared gateway API keys, plus a web UI and
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// management API for adapters and sources.
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package gateway
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import (
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"context"
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"embed"
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"encoding/json"
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"fmt"
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"io/fs"
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"log"
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"net"
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"net/http"
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"net/url"
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"strings"
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"sync"
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"time"
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"llmsproxy/internal/config"
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"llmsproxy/internal/core"
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)
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//go:embed ui/*
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var uiFS embed.FS
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// Gateway is the HTTP handler for the OpenAI-compatible endpoint + web UI.
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type Gateway struct {
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core *core.Core
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ui http.Handler
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stats *Stats
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probeMu sync.Mutex
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lastProbe time.Time
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// loginGuard throttles /api/login brute-force attempts: per-IP failure
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// counters with exponential backoff, plus a global cap so a distributed
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// spray cannot outrun the per-IP window. Guarded by loginMu.
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loginMu sync.Mutex
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loginFails map[string]*loginFail
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loginWin int64 // unix sec of current global window start
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loginGlob int // failures in the global window
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}
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// loginFail tracks consecutive failed logins from one source IP.
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type loginFail struct {
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count int
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until int64 // locked-out until this unix second (0 = not locked)
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lastAt int64
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}
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const (
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loginMaxFails = 5 // failures before lockout kicks in
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loginLockBase = 30 // first lockout: 30s
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loginLockCap = 30 * 60 // repeated lockouts cap at 30min
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loginDecay = 15 * 60 // counters decay after 15min of quiet
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loginGlobalMax = 100 // global failures per minute across all IPs
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loginGlobalWindow = 60 // global window length (sec)
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)
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// loginAllow checks (and records) a login attempt for ip. It returns false
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// when the attempt must be rejected: the IP is in exponential lockout or the
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// global failure budget for the current window is exhausted.
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func (g *Gateway) loginAllow(ip string, now int64) bool {
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g.loginMu.Lock()
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defer g.loginMu.Unlock()
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if g.loginFails == nil {
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g.loginFails = map[string]*loginFail{}
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}
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// global window rollover
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if now-g.loginWin >= loginGlobalWindow {
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g.loginWin = now
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g.loginGlob = 0
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}
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f := g.loginFails[ip]
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if f != nil && f.count > 0 && now-f.lastAt > loginDecay {
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delete(g.loginFails, ip) // quiet long enough: forgive and forget
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f = nil
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}
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if f != nil && f.until > now {
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return false // still locked out
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}
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if g.loginGlob >= loginGlobalMax {
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return false // global spray budget exhausted for this window
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}
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g.loginGlob++
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return true
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}
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// loginRecord notes the outcome of one attempt: failures escalate toward an
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// exponential lockout; a success clears the IP's counter entirely.
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func (g *Gateway) loginRecord(ip string, ok bool, now int64) {
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g.loginMu.Lock()
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defer g.loginMu.Unlock()
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if ok {
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if g.loginFails != nil {
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delete(g.loginFails, ip)
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}
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return
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}
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f := g.loginFails[ip]
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if f == nil {
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f = &loginFail{}
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g.loginFails[ip] = f
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}
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f.count++
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f.lastAt = now
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if f.count >= loginMaxFails {
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// lock duration doubles with each extra burst of failures, capped
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epoch := int64(f.count/loginMaxFails) - 1
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dur := int64(loginLockBase) << min(epoch, 6)
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if dur > loginLockCap {
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dur = loginLockCap
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}
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f.until = now + dur
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}
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}
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func New(c *core.Core, gatewayKeys []string) (*Gateway, error) {
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sub, err := fs.Sub(uiFS, "ui")
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if err != nil {
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return nil, err
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}
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st := NewStats(10000)
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if cfg := c.Config(); cfg != nil && cfg.RuntimeFile != "" {
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st.LoadAudit(cfg.RuntimeFile + ".audit.jsonl")
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}
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return &Gateway{
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core: c,
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ui: http.FileServer(http.FS(sub)),
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stats: st,
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}, nil
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}
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func (g *Gateway) Handler() http.Handler {
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// access log wraps all requests (auth, unauthenticated, login).
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inner := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// login entry point + login/logout API are the only unauthenticated routes
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if r.URL.Path == "/login" || r.URL.Path == "/api/login" || r.URL.Path == "/api/logout" {
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g.routes(w, r)
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return
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}
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g.auth(http.HandlerFunc(g.routes)).ServeHTTP(w, r)
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})
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return g.logAccess(inner)
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}
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// logAccess wraps an http.Handler so every response is written to the audit
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// file as an access event (method, path, status, latency, key).
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func (g *Gateway) logAccess(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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t0 := time.Now()
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sr := &statusRecorder{ResponseWriter: w}
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key := ""
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if h := r.Header.Get("Authorization"); h != "" {
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parts := strings.SplitN(h, " ", 2)
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if len(parts) == 2 && strings.EqualFold(parts[0], "Bearer") {
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key = parts[1]
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}
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}
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if key == "" {
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key = r.URL.Query().Get("api_key")
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}
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if key == "" {
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if c, err := r.Cookie("gw_key"); err == nil {
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key = c.Value
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}
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}
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next.ServeHTTP(sr, r)
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g.stats.AppendAudit("access", map[string]interface{}{
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"method": r.Method,
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"path": r.URL.RequestURI(),
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"status": sr.code,
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"lat_ms": time.Since(t0).Milliseconds(),
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"key": keyID(key),
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})
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})
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}
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type statusRecorder struct {
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http.ResponseWriter
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code int
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}
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func (s *statusRecorder) WriteHeader(code int) {
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if s.code == 0 {
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s.code = code
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}
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s.ResponseWriter.WriteHeader(code)
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}
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func (s *statusRecorder) Write(b []byte) (int, error) {
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if s.code == 0 {
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s.code = http.StatusOK
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}
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return s.ResponseWriter.Write(b)
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}
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// Flush forwards to the underlying writer so SSE handlers can stream
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// incrementally through the access-log wrapper. Without this method the
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// w.(http.Flusher) assertion inside the streaming chat handlers fails (the
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// embedded ResponseWriter interface does not carry Flush into the method set),
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// and every chunk stays buffered until the response ends.
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func (s *statusRecorder) Flush() {
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if f, ok := s.ResponseWriter.(http.Flusher); ok {
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f.Flush()
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}
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}
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func (g *Gateway) routes(w http.ResponseWriter, r *http.Request) {
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switch {
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case r.URL.Path == "/v1/chat/completions":
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g.handleChat(w, r)
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case r.URL.Path == "/v1/images/generations":
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g.handleImage(w, r)
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case r.URL.Path == "/v1/models":
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g.handleModels(w, r)
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case r.URL.Path == "/api/adapters" || strings.HasPrefix(r.URL.Path, "/api/adapters/"):
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g.handleAdaptersAPI(w, r)
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case r.URL.Path == "/api/sources" || strings.HasPrefix(r.URL.Path, "/api/sources/"):
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g.handleSourcesAPI(w, r)
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case r.URL.Path == "/api/chat":
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g.handleChat(w, r)
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case r.URL.Path == "/api/status":
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g.handleStatusAPI(w, r)
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case r.URL.Path == "/api/status/reset":
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g.handleResetHealth(w, r)
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case r.URL.Path == "/api/stats" || strings.HasPrefix(r.URL.Path, "/api/stats/"):
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g.handleStatsAPI(w, r)
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case r.URL.Path == "/api/keys" || strings.HasPrefix(r.URL.Path, "/api/keys/"):
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g.handleKeysAPI(w, r)
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case r.URL.Path == "/api/auto":
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g.handleAutoAPI(w, r)
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case r.URL.Path == "/login":
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g.handleLogin(w, r)
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case r.URL.Path == "/api/login":
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g.handleLoginAPI(w, r)
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case r.URL.Path == "/api/logout":
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g.handleLogoutAPI(w, r)
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default:
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g.serveUI(w, r)
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}
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}
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func (g *Gateway) serveUI(w http.ResponseWriter, r *http.Request) {
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// serve index.html directly for the root path (FileServer would 301 it)
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if r.URL.Path == "/" || r.URL.Path == "/ui" {
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data, err := uiFS.ReadFile("ui/index.html")
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if err != nil {
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http.Error(w, "ui missing", http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
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w.Write(data)
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return
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}
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g.ui.ServeHTTP(w, r)
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}
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func (g *Gateway) auth(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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key := ""
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if h := r.Header.Get("Authorization"); h != "" {
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parts := strings.SplitN(h, " ", 2)
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if len(parts) == 2 && strings.EqualFold(parts[0], "Bearer") {
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key = parts[1]
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}
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}
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if key == "" {
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key = r.URL.Query().Get("api_key")
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}
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if key == "" {
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if c, err := r.Cookie("gw_key"); err == nil {
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key = c.Value
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}
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}
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rec, ok := g.core.FindKey(key)
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if !ok {
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if isAPIPath(r.URL.Path) {
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writeError(w, http.StatusUnauthorized, "invalid_api_key", "invalid gateway api key")
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return
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}
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// browser navigation to UI pages -> login page
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http.Redirect(w, r, "/login?continue="+url.QueryEscape(r.URL.Path), http.StatusFound)
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return
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}
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next.ServeHTTP(w, r.WithContext(withAuth(r.Context(), key, rec.Role)))
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})
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}
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// authCtx carries the authenticated gateway key and its role.
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type authCtx struct {
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key string
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role string
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}
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type authCtxKeyT struct{}
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func withAuth(ctx context.Context, key, role string) context.Context {
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return context.WithValue(ctx, authCtxKeyT{}, authCtx{key: key, role: role})
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}
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// reqKey returns the authenticated gateway key id (masked suffix for display).
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func reqKey(ctx context.Context) string {
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if a, ok := ctx.Value(authCtxKeyT{}).(authCtx); ok {
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return a.key
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}
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return ""
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}
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// reqRole returns the authenticated key role ("admin" or "user").
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func reqRole(ctx context.Context) string {
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if a, ok := ctx.Value(authCtxKeyT{}).(authCtx); ok {
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return a.role
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}
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return "user"
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}
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// keyID returns a short stable id for a gateway key (last 6 chars).
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func keyID(k string) string {
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if len(k) <= 6 {
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return k
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}
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return "***" + k[len(k)-6:]
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}
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// isAPIPath reports whether the request targets a JSON API endpoint that
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// should answer 401 instead of redirecting to the login page.
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func isAPIPath(p string) bool {
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return strings.HasPrefix(p, "/v1/") || strings.HasPrefix(p, "/api/")
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}
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// handleLogoutAPI clears the session cookie and redirects to the login page.
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func (g *Gateway) handleLogoutAPI(w http.ResponseWriter, r *http.Request) {
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http.SetCookie(w, &http.Cookie{
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Name: "gw_key",
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Value: "",
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Path: "/",
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MaxAge: -1,
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HttpOnly: true,
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})
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http.Redirect(w, r, "/login", http.StatusFound)
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}
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// handleLogin serves the login page (unauthenticated). Supports a
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// ?continue= path to return to after a successful login and a ?lang=zh|en
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// toggle for i18n.
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func (g *Gateway) handleLogin(w http.ResponseWriter, r *http.Request) {
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continuePath := r.URL.Query().Get("continue")
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if continuePath == "" || !strings.HasPrefix(continuePath, "/") || strings.HasPrefix(continuePath, "//") {
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continuePath = "/"
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}
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lang := strings.ToLower(r.URL.Query().Get("lang"))
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if lang != "en" {
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lang = "zh"
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}
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// escape for embedding in HTML attribute and single-quoted JS string
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htmlCont := strings.NewReplacer(
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"&", "&", "<", "<", ">", ">", `"`, """, "'", "'",
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).Replace(continuePath)
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jsCont := strings.NewReplacer("\\", "\\\\", "'", "\\'", "\n", "\\n").Replace(continuePath)
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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fmt.Fprintf(w, loginPageHTML, htmlCont, jsCont, lang)
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}
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const loginPageHTML = `<!DOCTYPE html><html lang="zh"><head><meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>登录 · ModelRouter</title>
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<style>
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:root{--bg:#f4f6fb;--card:#ffffff;--line:#e2e6ef;--fg:#1c2333;--muted:#6b7390;--accent:#3f6ef5;--accent-h:#2f5ae0;--err:#e5484d}
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*{box-sizing:border-box}
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body{margin:0;font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(160deg,#f4f6fb 0%%,#e8edf8 100%%);color:var(--fg);display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
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.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:36px 34px;width:340px;box-shadow:0 12px 40px rgba(31,45,90,.10)}
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.brand{display:flex;align-items:center;gap:10px;margin-bottom:6px}
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.logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,#3f6ef5,#6a8ffb);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:15px}
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h1{font-size:18px;margin:0;letter-spacing:.2px}
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.sub{color:var(--muted);font-size:13px;margin:4px 0 22px}
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label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
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input{width:100%%;background:#fbfcfe;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font:inherit;color:var(--fg);outline:none;transition:border .15s,box-shadow .15s}
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input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(63,110,245,.15)}
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button{margin-top:16px;width:100%%;background:var(--accent);color:#fff;border:0;border-radius:8px;padding:11px;font:inherit;font-weight:600;cursor:pointer;transition:background .15s}
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button:hover{background:var(--accent-h)}
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#msg{color:var(--err);margin-top:12px;min-height:18px;font-size:13px}
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.foot{margin-top:18px;text-align:center;font-size:12px;color:var(--muted)}
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.foot a{color:var(--muted);text-decoration:none;border-bottom:1px dashed var(--line)}
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</style></head>
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<body><div class="card">
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<div class="brand"><div class="logo">M</div><div>
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<h1 data-i="title">ModelRouter</h1>
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<div class="sub" data-i="sub">统一 LLM 网关 · 登录</div></div></div>
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<input id="key" type="password" data-i-ph="ph" placeholder="Gateway API Key" autocomplete="off">
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<button onclick="login()" data-i="btn">登录</button>
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<div id="msg"></div>
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<div class="foot"><a data-i="lang" href="?lang=en&continue=%[1]s">English</a></div>
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</div>
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<script>
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var LANG='%[3]s';
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var CONT='%[2]s';
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var I={zh:{title:'ModelRouter',sub:'统一 LLM 网关 · 登录',ph:'输入网关 API Key',btn:'登录',lang:'English'},
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en:{title:'ModelRouter',sub:'Unified LLM Gateway · Sign in',ph:'Enter gateway API key',btn:'Sign in',lang:'中文'}};
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function apply(){var t=I[LANG]||I.zh;document.querySelector('[data-i=title]').textContent=t.title;
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document.querySelector('[data-i=sub]').textContent=t.sub;
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var ph=document.querySelector('#key');if(ph)ph.placeholder=t.ph;
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document.querySelector('[data-i=btn]').textContent=t.btn;
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document.querySelector('[data-i=lang]').textContent=t.lang;
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document.documentElement.lang=LANG==='zh'?'zh':'en';}
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document.querySelector('[data-i=lang]').onclick=function(e){e.preventDefault();
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location.href='/login?lang='+(LANG==='zh'?'en':'zh')+'&continue='+encodeURIComponent(CONT);};
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async function login(){
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var key=document.getElementById('key').value.trim();
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if(!key){document.getElementById('msg').textContent=(LANG==='zh'?'请输入 Key':'Enter a key');return;}
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var r=await fetch('/api/login',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({key})});
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var j=await r.json().catch(function(){return{};});
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if(r.ok){location.href=CONT||'/';}
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else{document.getElementById('msg').textContent=(j.error&&j.error.message)||(LANG==='zh'?'登录失败':'Login failed');}
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}
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document.getElementById('key').addEventListener('keydown',function(e){if(e.key==='Enter')login();});
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apply();
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</script></body></html>`
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// handleLoginAPI validates the gateway key and issues a session cookie,
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|
// guarded by per-IP + global brute-force throttling (see loginGuard).
|
|
func (g *Gateway) handleLoginAPI(w http.ResponseWriter, r *http.Request) {
|
|
if r.Method != http.MethodPost {
|
|
writeError(w, http.StatusMethodNotAllowed, "method_not_allowed", "use POST")
|
|
return
|
|
}
|
|
now := time.Now().Unix()
|
|
if !g.loginAllow(clientIP(r), now) {
|
|
// Don't reveal whether the key was right: answer the same 401 the
|
|
// failure path uses, but skip the expensive key lookup.
|
|
writeError(w, http.StatusUnauthorized, "invalid_api_key", "invalid gateway api key")
|
|
return
|
|
}
|
|
var body struct {
|
|
Key string `json:"key"`
|
|
}
|
|
if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
|
|
g.loginRecord(clientIP(r), false, now)
|
|
writeError(w, http.StatusBadRequest, "invalid_request", "invalid json")
|
|
return
|
|
}
|
|
if _, ok := g.core.FindKey(body.Key); !ok {
|
|
g.loginRecord(clientIP(r), false, now)
|
|
writeError(w, http.StatusUnauthorized, "invalid_api_key", "invalid gateway api key")
|
|
return
|
|
}
|
|
g.loginRecord(clientIP(r), true, now)
|
|
http.SetCookie(w, &http.Cookie{
|
|
Name: "gw_key",
|
|
Value: body.Key,
|
|
Path: "/",
|
|
MaxAge: 86400 * 30,
|
|
HttpOnly: true,
|
|
SameSite: http.SameSiteLaxMode,
|
|
})
|
|
writeJSON(w, http.StatusOK, map[string]interface{}{"ok": true})
|
|
}
|
|
|
|
// clientIP returns the caller's IP for rate limiting. Behind a trusted
|
|
// reverse proxy (nginx) the X-Real-IP header is preferred; otherwise the
|
|
// remote address is used with the port stripped.
|
|
func clientIP(r *http.Request) string {
|
|
if x := r.Header.Get("X-Real-IP"); x != "" {
|
|
return x
|
|
}
|
|
host, _, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
return r.RemoteAddr
|
|
}
|
|
return host
|
|
}
|
|
|
|
func (g *Gateway) handleModels(w http.ResponseWriter, r *http.Request) {
|
|
if r.Method != http.MethodGet {
|
|
writeError(w, http.StatusMethodNotAllowed, "method_not_allowed", "use GET")
|
|
return
|
|
}
|
|
models := g.core.Registry().ModelList()
|
|
if allow := g.allowedModels(r.Context()); allow != nil {
|
|
models = intersectModels(models, allow)
|
|
}
|
|
type modelObj struct {
|
|
ID string `json:"id"`
|
|
Object string `json:"object"`
|
|
}
|
|
objs := make([]modelObj, 0, len(models))
|
|
for _, m := range models {
|
|
objs = append(objs, modelObj{ID: m, Object: "model"})
|
|
}
|
|
writeJSON(w, http.StatusOK, map[string]interface{}{
|
|
"object": "list",
|
|
"data": objs,
|
|
})
|
|
}
|
|
|
|
// ensureProbe triggers a live source probe at most once every 30s.
|
|
// The probe runs asynchronously so a slow/stuck upstream never blocks the
|
|
// status response — reachability data is eventually-consistent and the UI
|
|
// polls /api/stats every 3s anyway, so the next refresh picks it up.
|
|
func (g *Gateway) ensureProbe(ctx context.Context) {
|
|
g.probeMu.Lock()
|
|
due := time.Since(g.lastProbe) > 30*time.Second
|
|
if due {
|
|
g.lastProbe = time.Now()
|
|
}
|
|
g.probeMu.Unlock()
|
|
if !due {
|
|
return
|
|
}
|
|
go func() {
|
|
probeCtx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
|
|
defer cancel()
|
|
g.core.Registry().ProbeAll(probeCtx)
|
|
}()
|
|
}
|
|
|
|
// handleResetHealth (admin) clears the per-source backoff state so a fixed
|
|
// upstream or an edited AUTO priority chain becomes schedulable immediately.
|
|
func (g *Gateway) handleResetHealth(w http.ResponseWriter, r *http.Request) {
|
|
if r.Method != http.MethodPost {
|
|
writeError(w, http.StatusMethodNotAllowed, "method_not_allowed", "use POST")
|
|
return
|
|
}
|
|
if reqRole(r.Context()) != "admin" {
|
|
writeError(w, http.StatusForbidden, "forbidden", "admin role required")
|
|
return
|
|
}
|
|
g.core.ResetHealth()
|
|
g.stats.AppendAudit("config", map[string]interface{}{"action": "reset_health", "key": keyID(reqKey(r.Context()))})
|
|
writeJSON(w, http.StatusOK, map[string]interface{}{"ok": true})
|
|
}
|
|
|
|
func (g *Gateway) handleStatusAPI(w http.ResponseWriter, r *http.Request) {
|
|
g.ensureProbe(r.Context())
|
|
host := r.Host
|
|
if host == "" {
|
|
host = g.core.Listen()
|
|
}
|
|
if strings.HasPrefix(host, ":") {
|
|
host = "127.0.0.1" + host
|
|
}
|
|
// gateway_keys: return only the current authenticated user's key so the
|
|
// connection snippet on the home page always shows the correct key
|
|
// (previously every user saw the first admin key in the list).
|
|
myKey := reqKey(r.Context())
|
|
ks := make([]config.GWKey, 0, len(g.core.ListKeys()))
|
|
for _, k := range g.core.ListKeys() {
|
|
if k.Key == myKey {
|
|
ks = append(ks, config.GWKey{
|
|
Key: k.Key,
|
|
Role: k.Role,
|
|
Name: k.Name,
|
|
})
|
|
break
|
|
}
|
|
}
|
|
scheme := "http"
|
|
if r.TLS != nil {
|
|
scheme = "https"
|
|
}
|
|
baseURL := g.core.PublicBaseURL()
|
|
if baseURL == "" {
|
|
baseURL = scheme + "://" + host + "/v1"
|
|
}
|
|
models := g.core.Registry().ModelList()
|
|
if reqRole(r.Context()) != "admin" {
|
|
models = g.scopedModelList(r.Context(), models)
|
|
}
|
|
resp := map[string]interface{}{
|
|
"default_model": g.core.DefaultModel(),
|
|
"models": models,
|
|
"base_url": baseURL,
|
|
"gateway_keys": ks,
|
|
}
|
|
if reqRole(r.Context()) == "admin" {
|
|
sts := g.core.Registry().Status()
|
|
recent := g.stats.SourceRecent(300)
|
|
avgs := g.stats.SourceAverages(300)
|
|
for i := range sts {
|
|
if v, ok := recent[sts[i].Name]; ok {
|
|
sts[i].RecentOK = v[0]
|
|
sts[i].RecentErr = v[1]
|
|
}
|
|
if a, ok := avgs[sts[i].Name]; ok {
|
|
sts[i].AvgFirstByteMs = a.AvgFirstByteMs
|
|
sts[i].AvgTokPerS = a.AvgTokPerS
|
|
}
|
|
}
|
|
resp["sources"] = sts
|
|
resp["adapters"] = g.core.ListAdapters()
|
|
}
|
|
writeJSON(w, http.StatusOK, resp)
|
|
}
|
|
|
|
// scopedModelList filters the full model set to only those allowed by the
|
|
// request's gateway key (used for users with a restricted model scope).
|
|
func (g *Gateway) scopedModelList(ctx context.Context, full []string) []string {
|
|
allow := g.allowedModels(ctx)
|
|
if allow == nil {
|
|
return full
|
|
}
|
|
out := make([]string, 0, len(allow))
|
|
for _, m := range allow {
|
|
if m.Model == "" {
|
|
continue
|
|
}
|
|
out = append(out, m.Model)
|
|
}
|
|
return out
|
|
}
|
|
|
|
func writeError(w http.ResponseWriter, code int, errType, msg string) {
|
|
writeJSON(w, code, map[string]interface{}{
|
|
"error": map[string]interface{}{"type": errType, "message": msg},
|
|
})
|
|
}
|
|
|
|
func writeJSON(w http.ResponseWriter, code int, v interface{}) {
|
|
w.Header().Set("Content-Type", "application/json")
|
|
w.WriteHeader(code)
|
|
if err := json.NewEncoder(w).Encode(v); err != nil {
|
|
log.Printf("[gateway] write json: %v", err)
|
|
}
|
|
}
|