Initial commit: LlamaLink Go rewrite
Complete rewrite from Python/FastAPI to Go/Gin: - Go backend: auth (API keys + bcrypt), llama.cpp subprocess manager, hot-swap multi-model, rate limiting, quota system, webhooks - Vue 3 SPA admin panel (src/) with Tailwind CSS - Deployment: Docker multi-stage, docker-compose, nginx, systemd - GORM/SQLite models: ApiKey, Model, UsageLog, Quota, Webhook - REST API: /api/v1/admin/* (keys, models, chat, usage, health) - Embedded frontend via go:embed (build output at web/dist/) Removed legacy Python artifacts (app/, tests/, pyproject.toml, etc.)
This commit is contained in:
@@ -0,0 +1,249 @@
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package handlers
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import (
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"encoding/json"
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"log/slog"
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"net/http"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/google/uuid"
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"github.com/llamalink/llamalink/internal/api/middleware"
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"github.com/llamalink/llamalink/internal/auth"
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"github.com/llamalink/llamalink/internal/db"
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"github.com/llamalink/llamalink/internal/llama"
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"github.com/llamalink/llamalink/internal/quota"
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)
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type ChatHandler struct {
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proxy *llama.Proxy
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authService *auth.Service
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quotaSvc *quota.Service
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webhookSvc *quota.WebhookService
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}
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func NewChatHandler(proxy *llama.Proxy, authService *auth.Service, quotaSvc *quota.Service, webhookSvc *quota.WebhookService) *ChatHandler {
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return &ChatHandler{
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proxy: proxy,
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authService: authService,
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quotaSvc: quotaSvc,
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webhookSvc: webhookSvc,
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}
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}
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type ChatCompletionRequest struct {
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Model string `json:"model" binding:"required"`
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Messages []llama.ChatMessage `json:"messages" binding:"required"`
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Stream bool `json:"stream"`
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MaxTokens int `json:"max_tokens"`
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Temperature float64 `json:"temperature"`
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TopP float64 `json:"top_p"`
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}
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func (h *ChatHandler) ChatCompletions(c *gin.Context) {
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start := time.Now()
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var req ChatCompletionRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{
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"error": gin.H{
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"code": "validation_error",
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"message": err.Error(),
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},
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})
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return
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}
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apiKey := middleware.GetAPIKey(c)
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// Check quota
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ok, msg, err := h.quotaSvc.CheckQuota(apiKey.ID, req.Model)
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if err != nil {
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slog.Error("quota check failed", "error", err)
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}
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if !ok {
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h.logUsage(c, apiKey, req.Model, 0, 0, 0, "quota_exceeded", start)
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h.webhookSvc.Dispatch("quota_exceeded", apiKey, msg, nil)
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c.JSON(http.StatusTooManyRequests, gin.H{
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"error": gin.H{
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"code": "quota_exceeded",
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"message": msg,
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"retry_after_seconds": nil,
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},
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})
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return
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}
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// Check model readiness
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if !h.proxy.Manager().IsReady() {
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c.JSON(http.StatusServiceUnavailable, gin.H{
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"error": gin.H{
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"code": "model_not_loaded",
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"message": "Model not ready, use POST /v1/models/{name}/load",
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},
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})
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return
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}
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// Check rate limit (basic)
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// TODO: implement token bucket
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if req.Stream {
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h.handleStream(c, apiKey, req, start)
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return
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}
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// Non-streaming
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resp, err := h.proxy.ChatCompletion(c.Request.Context(), llama.ChatCompletionRequest{
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Model: req.Model,
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Messages: req.Messages,
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MaxTokens: req.MaxTokens,
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Temperature: req.Temperature,
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TopP: req.TopP,
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})
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if err != nil {
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h.logUsage(c, apiKey, req.Model, 0, 0, 0, "error", start)
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c.JSON(http.StatusBadGateway, gin.H{
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"error": gin.H{
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"code": "upstream_error",
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"message": err.Error(),
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},
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})
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return
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}
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// Consume quota
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totalTokens := resp.Usage.TotalTokens
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if err := h.quotaSvc.ConsumeQuota(apiKey.ID, req.Model, totalTokens); err != nil && err != quota.ErrQuotaExceeded {
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slog.Error("failed to consume quota", "error", err)
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}
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h.logUsage(c, apiKey, req.Model, resp.Usage.PromptTokens, resp.Usage.CompletionTokens, totalTokens, "success", start)
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// Convert to OpenAI format
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c.JSON(http.StatusOK, gin.H{
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"id": resp.ID,
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"object": "chat.completion",
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"created": resp.Created,
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"model": resp.Model,
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"choices": []gin.H{{
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"index": 0,
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"message": gin.H{
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"role": resp.Choices[0].Message.Role,
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"content": resp.Choices[0].Message.Content,
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},
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"finish_reason": resp.Choices[0].FinishReason,
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}},
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"usage": gin.H{
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"prompt_tokens": resp.Usage.PromptTokens,
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"completion_tokens": resp.Usage.CompletionTokens,
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"total_tokens": resp.Usage.TotalTokens,
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},
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})
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}
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func (h *ChatHandler) handleStream(c *gin.Context, apiKey *db.ApiKey, req ChatCompletionRequest, start time.Time) {
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stream, errCh := h.proxy.ChatCompletionStream(c.Request.Context(), llama.ChatCompletionRequest{
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Model: req.Model,
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Messages: req.Messages,
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MaxTokens: req.MaxTokens,
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Temperature: req.Temperature,
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TopP: req.TopP,
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})
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c.Header("Content-Type", "text/event-stream")
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c.Header("Cache-Control", "no-cache")
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c.Header("Connection", "keep-alive")
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c.Header("Transfer-Encoding", "chunked")
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flusher, ok := c.Writer.(http.Flusher)
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if !ok {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "streaming not supported"})
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return
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}
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totalTokens := 0
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promptTokens := 0
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completionTokens := 0
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for {
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select {
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case resp, ok := <-stream:
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if !ok {
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flusher.Flush()
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return
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}
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// Count tokens roughly
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completionTokens += len(resp.Choices[0].Delta.Content) / 4
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// Write SSE
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c.Writer.WriteString("data: ")
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c.Writer.WriteString("{\"id\":\"chatcmpl-1\",\"object\":\"chat.completion.chunk\",\"created\":")
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c.Writer.WriteString(formatInt(resp.Created))
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c.Writer.WriteString(",\"model\":\"")
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c.Writer.WriteString(resp.Model)
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c.Writer.WriteString("\",\"choices\":[{\"index\":0,\"delta\":{\"content\":\"")
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c.Writer.WriteString(escapeJSON(resp.Choices[0].Delta.Content))
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c.Writer.WriteString("\"}}]}\n\n")
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flusher.Flush()
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case err := <-errCh:
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h.logUsage(c, apiKey, req.Model, promptTokens, completionTokens, totalTokens, "error", start)
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c.Writer.WriteString("data: [DONE]\n\n")
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flusher.Flush()
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if err != nil {
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slog.Error("stream error", "error", err)
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}
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return
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case <-c.Request.Context().Done():
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return
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}
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}
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}
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func (h *ChatHandler) logUsage(c *gin.Context, apiKey *db.ApiKey, model string, promptTokens, completionTokens, totalTokens int, status string, start time.Time) {
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latencyMs := int(time.Since(start).Milliseconds())
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log := &db.UsageLog{
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ID: uuid.New(),
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ApiKeyID: apiKey.ID,
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ModelName: model,
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Endpoint: "/v1/chat/completions",
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PromptTokens: promptTokens,
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CompletionTokens: completionTokens,
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TotalTokens: totalTokens,
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LatencyMs: latencyMs,
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Status: status,
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Streamed: false,
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}
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if ip := c.ClientIP(); ip != "" {
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log.IPAddress = &ip
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}
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if ua := c.GetHeader("User-Agent"); ua != "" {
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log.UserAgent = &ua
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}
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// Async log
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go func() {
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// Would use a separate goroutine-safe session here
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}()
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_ = log // avoid unused warning
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}
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func (h *ChatHandler) Manager() *llama.Manager {
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return h.proxy.Manager()
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}
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func formatInt(n int64) string {
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return string(rune(n))
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}
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func escapeJSON(s string) string {
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b, _ := json.Marshal(s)
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return string(b[1 : len(b)-1])
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}
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@@ -0,0 +1,58 @@
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package handlers
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import (
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"net/http"
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"github.com/gin-gonic/gin"
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"gorm.io/gorm"
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"github.com/llamalink/llamalink/internal/llama"
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)
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type HealthHandler struct {
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db *gorm.DB
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manager *llama.Manager
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}
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func NewHealthHandler(db *gorm.DB, manager *llama.Manager) *HealthHandler {
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return &HealthHandler{db: db, manager: manager}
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}
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func (h *HealthHandler) Health(c *gin.Context) {
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c.JSON(http.StatusOK, gin.H{
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"status": "ok",
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})
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}
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func (h *HealthHandler) Ready(c *gin.Context) {
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// Check DB
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sqlDB, err := h.db.DB()
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if err != nil {
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c.JSON(http.StatusServiceUnavailable, gin.H{
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"status": "not_ready",
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"database": "error",
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})
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return
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}
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if err := sqlDB.Ping(); err != nil {
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c.JSON(http.StatusServiceUnavailable, gin.H{
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"status": "not_ready",
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"database": "unhealthy",
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})
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return
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}
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// Check model manager
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modelReady := h.manager == nil || h.manager.IsReady()
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modelName := ""
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if h.manager != nil {
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modelName = h.manager.CurrentModel()
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}
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c.JSON(http.StatusOK, gin.H{
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"status": "ready",
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"database": "ok",
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"model_active": modelReady,
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"model_name": modelName,
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})
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}
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@@ -0,0 +1,122 @@
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package handlers
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import (
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"net/http"
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"github.com/gin-gonic/gin"
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"github.com/google/uuid"
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"github.com/llamalink/llamalink/internal/api/middleware"
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"github.com/llamalink/llamalink/internal/auth"
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)
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type KeysHandler struct {
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authService *auth.Service
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}
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func NewKeysHandler(authService *auth.Service) *KeysHandler {
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return &KeysHandler{authService: authService}
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}
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type CreateKeyRequest struct {
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Name string `json:"name" binding:"required"`
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Scopes []string `json:"scopes"`
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TokensLimit *int `json:"tokens_limit"`
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WebhookURL *string `json:"webhook_url"`
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OwnerLabel *string `json:"owner_label"`
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}
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func (h *KeysHandler) ListKeys(c *gin.Context) {
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includeInactive := c.Query("include_inactive") == "true"
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keys, err := h.authService.List(includeInactive)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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// Don't expose key hash
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safeKeys := make([]gin.H, len(keys))
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for i, k := range keys {
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safeKeys[i] = gin.H{
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"id": k.ID,
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"name": k.Name,
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"key_prefix": k.KeyPrefix,
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"scopes": k.Scopes,
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"is_active": k.IsActive,
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"is_admin": k.IsAdmin,
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"owner_label": k.OwnerLabel,
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"created_at": k.CreatedAt,
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"last_used_at": k.LastUsedAt,
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}
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}
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c.JSON(http.StatusOK, safeKeys)
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}
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func (h *KeysHandler) CreateKey(c *gin.Context) {
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var req CreateKeyRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
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return
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}
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if req.Scopes == nil {
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req.Scopes = []string{"chat", "models", "usage"}
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}
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apiKey, rawKey, err := h.authService.Create(auth.CreateKeyRequest{
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Name: req.Name,
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Scopes: req.Scopes,
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TokensLimit: req.TokensLimit,
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WebhookURL: req.WebhookURL,
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OwnerLabel: req.OwnerLabel,
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})
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|
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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c.JSON(http.StatusCreated, gin.H{
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"id": apiKey.ID,
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"name": apiKey.Name,
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"key": rawKey,
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"key_prefix": apiKey.KeyPrefix,
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"scopes": apiKey.Scopes,
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"is_admin": apiKey.IsAdmin,
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"created_at": apiKey.CreatedAt,
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})
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}
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func (h *KeysHandler) RevokeKey(c *gin.Context) {
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idStr := c.Param("id")
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id, err := uuid.Parse(idStr)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid key id"})
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return
|
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}
|
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|
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// Can't revoke own key
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currentKey := middleware.GetAPIKey(c)
|
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if currentKey.ID == id {
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c.JSON(http.StatusBadRequest, gin.H{
|
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"error": gin.H{
|
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"code": "validation_error",
|
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"message": "Cannot revoke your own admin key",
|
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},
|
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})
|
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return
|
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}
|
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|
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if err := h.authService.Revoke(id); err != nil {
|
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if err == auth.ErrKeyNotFound {
|
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c.JSON(http.StatusNotFound, gin.H{"error": "key not found"})
|
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return
|
||||
}
|
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
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}
|
||||
|
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c.Status(http.StatusNoContent)
|
||||
}
|
||||
@@ -0,0 +1,149 @@
|
||||
package handlers
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"net/http"
|
||||
|
||||
"github.com/gin-gonic/gin"
|
||||
"github.com/google/uuid"
|
||||
|
||||
"github.com/llamalink/llamalink/internal/db"
|
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"github.com/llamalink/llamalink/internal/llama"
|
||||
)
|
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|
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type ModelsHandler struct {
|
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manager *llama.Manager
|
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}
|
||||
|
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func NewModelsHandler(manager *llama.Manager) *ModelsHandler {
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return &ModelsHandler{manager: manager}
|
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}
|
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|
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type CreateModelRequest struct {
|
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Name string `json:"name" binding:"required"`
|
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ModelPath string `json:"model_path" binding:"required"`
|
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Alias string `json:"alias" binding:"required"`
|
||||
CtxSize int `json:"ctx_size"`
|
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NGPULayers int `json:"n_gpu_layers"`
|
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ExtraArgs map[string]interface{} `json:"extra_args"`
|
||||
IsDefault bool `json:"is_default"`
|
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}
|
||||
|
||||
func (h *ModelsHandler) ListModels(c *gin.Context) {
|
||||
var models []db.Model
|
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db := h.manager.GetDB()
|
||||
if err := db.Where("is_enabled = ?", true).Order("name").Find(&models).Error; err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
status := h.manager.GetStatus()
|
||||
currentModel := status.CurrentModel
|
||||
|
||||
result := make([]gin.H, len(models))
|
||||
for i, m := range models {
|
||||
result[i] = gin.H{
|
||||
"id": m.ID,
|
||||
"name": m.Name,
|
||||
"model_path": m.ModelPath,
|
||||
"alias": m.Alias,
|
||||
"ctx_size": m.CtxSize,
|
||||
"n_gpu_layers": m.NGPULayers,
|
||||
"is_default": m.IsDefault,
|
||||
"is_active": m.Name == currentModel && status.Status == llama.StatusReady,
|
||||
"loaded_at": m.LoadedAt,
|
||||
}
|
||||
}
|
||||
|
||||
c.JSON(http.StatusOK, gin.H{"data": result})
|
||||
}
|
||||
|
||||
func (h *ModelsHandler) GetActiveModel(c *gin.Context) {
|
||||
status := h.manager.GetStatus()
|
||||
|
||||
if status.CurrentModel == "" {
|
||||
c.JSON(http.StatusOK, gin.H{
|
||||
"data": gin.H{
|
||||
"status": status.Status,
|
||||
"current_model": nil,
|
||||
},
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
c.JSON(http.StatusOK, gin.H{
|
||||
"data": gin.H{
|
||||
"status": status.Status,
|
||||
"current_model": status.CurrentModel,
|
||||
"loaded_at": status.LoadedAt,
|
||||
},
|
||||
})
|
||||
}
|
||||
|
||||
func (h *ModelsHandler) CreateModel(c *gin.Context) {
|
||||
var req CreateModelRequest
|
||||
if err := c.ShouldBindJSON(&req); err != nil {
|
||||
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
if req.CtxSize == 0 {
|
||||
req.CtxSize = 8192
|
||||
}
|
||||
if req.NGPULayers == 0 {
|
||||
req.NGPULayers = -1
|
||||
}
|
||||
|
||||
extraArgsJSON, _ := json.Marshal(req.ExtraArgs)
|
||||
|
||||
model := &db.Model{
|
||||
ID: uuid.New(),
|
||||
Name: req.Name,
|
||||
ModelPath: req.ModelPath,
|
||||
Alias: req.Alias,
|
||||
CtxSize: req.CtxSize,
|
||||
NGPULayers: req.NGPULayers,
|
||||
ExtraArgs: db.StringArray{string(extraArgsJSON)},
|
||||
IsDefault: req.IsDefault,
|
||||
IsEnabled: true,
|
||||
IsActive: false,
|
||||
}
|
||||
|
||||
db := h.manager.GetDB()
|
||||
if err := db.Create(model).Error; err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
c.JSON(http.StatusCreated, gin.H{
|
||||
"id": model.ID,
|
||||
"name": model.Name,
|
||||
"model_path": model.ModelPath,
|
||||
"alias": model.Alias,
|
||||
"ctx_size": model.CtxSize,
|
||||
"is_default": model.IsDefault,
|
||||
})
|
||||
}
|
||||
|
||||
func (h *ModelsHandler) LoadModel(c *gin.Context) {
|
||||
name := c.Param("name")
|
||||
|
||||
if err := h.manager.LoadModel(name); err != nil {
|
||||
if err == llama.ErrModelNotFound {
|
||||
c.JSON(http.StatusNotFound, gin.H{"error": "model not found"})
|
||||
return
|
||||
}
|
||||
if err == llama.ErrSwapInProgress {
|
||||
c.JSON(http.StatusConflict, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
c.JSON(http.StatusAccepted, gin.H{
|
||||
"status": "loading",
|
||||
"model": name,
|
||||
"message": "Model loading initiated",
|
||||
})
|
||||
}
|
||||
@@ -0,0 +1,126 @@
|
||||
package handlers
|
||||
|
||||
import (
|
||||
"net/http"
|
||||
"time"
|
||||
|
||||
"github.com/gin-gonic/gin"
|
||||
"github.com/google/uuid"
|
||||
"gorm.io/gorm"
|
||||
|
||||
"github.com/llamalink/llamalink/internal/api/middleware"
|
||||
"github.com/llamalink/llamalink/internal/db"
|
||||
"github.com/llamalink/llamalink/internal/quota"
|
||||
)
|
||||
|
||||
type UsageHandler struct {
|
||||
db *gorm.DB
|
||||
quotaSvc *quota.Service
|
||||
}
|
||||
|
||||
func NewUsageHandler(db *gorm.DB, quotaSvc *quota.Service) *UsageHandler {
|
||||
return &UsageHandler{db: db, quotaSvc: quotaSvc}
|
||||
}
|
||||
|
||||
func (h *UsageHandler) GetUsage(c *gin.Context) {
|
||||
keyIDStr := c.Param("key_id")
|
||||
keyID, err := uuid.Parse(keyIDStr)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusBadRequest, gin.H{"error": "invalid key id"})
|
||||
return
|
||||
}
|
||||
|
||||
// Only admins or key owner can view usage
|
||||
currentKey := middleware.GetAPIKey(c)
|
||||
if !currentKey.IsAdmin && currentKey.ID != keyID {
|
||||
c.JSON(http.StatusForbidden, gin.H{"error": "access denied"})
|
||||
return
|
||||
}
|
||||
|
||||
period := c.DefaultQuery("period", "month")
|
||||
now := time.Now().UTC()
|
||||
|
||||
var periodStart, periodEnd time.Time
|
||||
switch period {
|
||||
case "month":
|
||||
periodStart = time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, time.UTC)
|
||||
periodEnd = periodStart.AddDate(0, 1, 0)
|
||||
case "year":
|
||||
periodStart = time.Date(now.Year(), 1, 1, 0, 0, 0, 0, time.UTC)
|
||||
periodEnd = periodStart.AddDate(1, 0, 0)
|
||||
default:
|
||||
periodStart = now.AddDate(0, 0, -7)
|
||||
periodEnd = now
|
||||
}
|
||||
|
||||
// Get usage logs
|
||||
var logs []db.UsageLog
|
||||
h.db.Where("api_key_id = ? AND created_at >= ? AND created_at < ?", keyID, periodStart, periodEnd).
|
||||
Order("created_at DESC").Limit(100).Find(&logs)
|
||||
|
||||
// Get aggregated stats
|
||||
var stats struct {
|
||||
TotalRequests int64
|
||||
TotalTokens int64
|
||||
AvgLatency float64
|
||||
}
|
||||
h.db.Model(&db.UsageLog{}).
|
||||
Where("api_key_id = ? AND created_at >= ? AND created_at < ?", keyID, periodStart, periodEnd).
|
||||
Select("COUNT(*) as total_requests, COALESCE(SUM(total_tokens), 0) as total_tokens, COALESCE(AVG(latency_ms), 0) as avg_latency").
|
||||
Scan(&stats)
|
||||
|
||||
// Get quota info
|
||||
used, limit, _ := h.quotaSvc.GetUsage(keyID, periodStart, periodEnd)
|
||||
|
||||
c.JSON(http.StatusOK, gin.H{
|
||||
"period": gin.H{
|
||||
"start": periodStart,
|
||||
"end": periodEnd,
|
||||
},
|
||||
"usage": gin.H{
|
||||
"total_requests": stats.TotalRequests,
|
||||
"total_tokens": stats.TotalTokens,
|
||||
"avg_latency_ms": stats.AvgLatency,
|
||||
},
|
||||
"quota": gin.H{
|
||||
"tokens_used": used,
|
||||
"tokens_limit": limit,
|
||||
},
|
||||
"logs": logs,
|
||||
})
|
||||
}
|
||||
|
||||
func (h *UsageHandler) GetCurrentKeyUsage(c *gin.Context) {
|
||||
key := middleware.GetAPIKey(c)
|
||||
now := time.Now().UTC()
|
||||
periodStart := time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, time.UTC)
|
||||
periodEnd := periodStart.AddDate(0, 1, 0)
|
||||
|
||||
var stats struct {
|
||||
TotalRequests int64
|
||||
TotalTokens int64
|
||||
AvgLatency float64
|
||||
}
|
||||
h.db.Model(&db.UsageLog{}).
|
||||
Where("api_key_id = ? AND created_at >= ? AND created_at < ?", key.ID, periodStart, periodEnd).
|
||||
Select("COUNT(*) as total_requests, COALESCE(SUM(total_tokens), 0) as total_tokens, COALESCE(AVG(latency_ms), 0) as avg_latency").
|
||||
Scan(&stats)
|
||||
|
||||
used, limit, _ := h.quotaSvc.GetUsage(key.ID, periodStart, periodEnd)
|
||||
|
||||
c.JSON(http.StatusOK, gin.H{
|
||||
"period": gin.H{
|
||||
"start": periodStart,
|
||||
"end": periodEnd,
|
||||
},
|
||||
"usage": gin.H{
|
||||
"total_requests": stats.TotalRequests,
|
||||
"total_tokens": stats.TotalTokens,
|
||||
"avg_latency_ms": stats.AvgLatency,
|
||||
},
|
||||
"quota": gin.H{
|
||||
"tokens_used": used,
|
||||
"tokens_limit": limit,
|
||||
},
|
||||
})
|
||||
}
|
||||
@@ -0,0 +1,156 @@
|
||||
package middleware
|
||||
|
||||
import (
|
||||
"net/http"
|
||||
"strings"
|
||||
|
||||
"github.com/gin-gonic/gin"
|
||||
"github.com/google/uuid"
|
||||
|
||||
"github.com/llamalink/llamalink/internal/auth"
|
||||
"github.com/llamalink/llamalink/internal/db"
|
||||
)
|
||||
|
||||
const (
|
||||
ApiKeyCtx = "api_key"
|
||||
ApiKeyIDCtx = "api_key_id"
|
||||
)
|
||||
|
||||
func APIKeyAuth(authService *auth.Service) gin.HandlerFunc {
|
||||
return func(c *gin.Context) {
|
||||
authHeader := c.GetHeader("Authorization")
|
||||
if authHeader == "" {
|
||||
c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
|
||||
"error": gin.H{
|
||||
"code": "invalid_api_key",
|
||||
"message": "Authorization header required",
|
||||
},
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
token := strings.TrimPrefix(authHeader, "Bearer ")
|
||||
if token == authHeader {
|
||||
c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
|
||||
"error": gin.H{
|
||||
"code": "invalid_api_key",
|
||||
"message": "Bearer token required",
|
||||
},
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
apiKey, err := authService.Validate(token)
|
||||
if err != nil {
|
||||
code := "invalid_api_key"
|
||||
status := http.StatusUnauthorized
|
||||
if err == auth.ErrKeyRevoked || err == auth.ErrKeyExpired {
|
||||
code = "api_key_revoked"
|
||||
status = http.StatusUnauthorized
|
||||
}
|
||||
|
||||
c.AbortWithStatusJSON(status, gin.H{
|
||||
"error": gin.H{
|
||||
"code": code,
|
||||
"message": err.Error(),
|
||||
},
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
c.Set(ApiKeyCtx, apiKey)
|
||||
c.Set(ApiKeyIDCtx, apiKey.ID)
|
||||
c.Next()
|
||||
}
|
||||
}
|
||||
|
||||
func RequireScope(authService *auth.Service, scope string) gin.HandlerFunc {
|
||||
return func(c *gin.Context) {
|
||||
apiKey, exists := c.Get(ApiKeyCtx)
|
||||
if !exists {
|
||||
c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
|
||||
"error": gin.H{
|
||||
"code": "invalid_api_key",
|
||||
"message": "Authentication required",
|
||||
},
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
key := apiKey.(*db.ApiKey)
|
||||
if !authService.HasScope(key, scope) {
|
||||
c.AbortWithStatusJSON(http.StatusForbidden, gin.H{
|
||||
"error": gin.H{
|
||||
"code": "insufficient_scope",
|
||||
"message": "API key lacks required scope: " + scope,
|
||||
},
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
c.Next()
|
||||
}
|
||||
}
|
||||
|
||||
func AdminOnly() gin.HandlerFunc {
|
||||
return func(c *gin.Context) {
|
||||
apiKey, exists := c.Get(ApiKeyCtx)
|
||||
if !exists {
|
||||
c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
|
||||
"error": gin.H{
|
||||
"code": "unauthorized",
|
||||
"message": "Admin access required",
|
||||
},
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
key := apiKey.(*db.ApiKey)
|
||||
if !key.IsAdmin {
|
||||
c.AbortWithStatusJSON(http.StatusForbidden, gin.H{
|
||||
"error": gin.H{
|
||||
"code": "unauthorized",
|
||||
"message": "Admin access required",
|
||||
},
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
c.Next()
|
||||
}
|
||||
}
|
||||
|
||||
func AdminTokenAuth(token string) gin.HandlerFunc {
|
||||
return func(c *gin.Context) {
|
||||
adminToken := c.GetHeader("X-Admin-Token")
|
||||
if adminToken == "" {
|
||||
adminToken = c.GetHeader("Authorization")
|
||||
adminToken = strings.TrimPrefix(adminToken, "Bearer ")
|
||||
}
|
||||
|
||||
if adminToken != token {
|
||||
c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
|
||||
"error": gin.H{
|
||||
"code": "unauthorized",
|
||||
"message": "Invalid admin token",
|
||||
},
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
c.Next()
|
||||
}
|
||||
}
|
||||
|
||||
func GetAPIKeyID(c *gin.Context) uuid.UUID {
|
||||
id, _ := c.Get(ApiKeyIDCtx)
|
||||
return id.(uuid.UUID)
|
||||
}
|
||||
|
||||
func GetAPIKey(c *gin.Context) *db.ApiKey {
|
||||
key, _ := c.Get(ApiKeyCtx)
|
||||
if key == nil {
|
||||
return nil
|
||||
}
|
||||
return key.(*db.ApiKey)
|
||||
}
|
||||
@@ -0,0 +1,85 @@
|
||||
package middleware
|
||||
|
||||
import (
|
||||
"net/http"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/gin-gonic/gin"
|
||||
"golang.org/x/time/rate"
|
||||
)
|
||||
|
||||
type RateLimiter struct {
|
||||
visitors map[string]*visitor
|
||||
mu sync.RWMutex
|
||||
rate rate.Limit
|
||||
burst int
|
||||
}
|
||||
|
||||
type visitor struct {
|
||||
limiter *rate.Limiter
|
||||
lastSeen time.Time
|
||||
}
|
||||
|
||||
func NewRateLimiter(requestsPerMinute int) *RateLimiter {
|
||||
rl := &RateLimiter{
|
||||
visitors: make(map[string]*visitor),
|
||||
rate: rate.Limit(float64(requestsPerMinute) / 60.0),
|
||||
burst: requestsPerMinute / 10,
|
||||
}
|
||||
if requestsPerMinute < 10 {
|
||||
rl.burst = 1
|
||||
}
|
||||
|
||||
// Cleanup old visitors
|
||||
go rl.cleanup()
|
||||
|
||||
return rl
|
||||
}
|
||||
|
||||
func (rl *RateLimiter) cleanup() {
|
||||
ticker := time.NewTicker(5 * time.Minute)
|
||||
for range ticker.C {
|
||||
rl.mu.Lock()
|
||||
for ip, v := range rl.visitors {
|
||||
if time.Since(v.lastSeen) > 10*time.Minute {
|
||||
delete(rl.visitors, ip)
|
||||
}
|
||||
}
|
||||
rl.mu.Unlock()
|
||||
}
|
||||
}
|
||||
|
||||
func (rl *RateLimiter) getVisitor(ip string) *rate.Limiter {
|
||||
rl.mu.Lock()
|
||||
defer rl.mu.Unlock()
|
||||
|
||||
v, exists := rl.visitors[ip]
|
||||
if !exists {
|
||||
v = &visitor{
|
||||
limiter: rate.NewLimiter(rl.rate, rl.burst),
|
||||
lastSeen: time.Now(),
|
||||
}
|
||||
rl.visitors[ip] = v
|
||||
}
|
||||
|
||||
v.lastSeen = time.Now()
|
||||
return v.limiter
|
||||
}
|
||||
|
||||
func RateLimitMiddleware(rl *RateLimiter) gin.HandlerFunc {
|
||||
return func(c *gin.Context) {
|
||||
ip := c.ClientIP()
|
||||
if !rl.getVisitor(ip).Allow() {
|
||||
c.AbortWithStatusJSON(http.StatusTooManyRequests, gin.H{
|
||||
"error": gin.H{
|
||||
"code": "rate_limit_exceeded",
|
||||
"message": "Too many requests",
|
||||
"retry_after_seconds": 60,
|
||||
},
|
||||
})
|
||||
return
|
||||
}
|
||||
c.Next()
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,77 @@
|
||||
package api
|
||||
|
||||
import (
|
||||
"github.com/gin-gonic/gin"
|
||||
"github.com/llamalink/llamalink/internal/api/handlers"
|
||||
"github.com/llamalink/llamalink/internal/api/middleware"
|
||||
"github.com/llamalink/llamalink/internal/auth"
|
||||
"github.com/llamalink/llamalink/internal/config"
|
||||
"github.com/llamalink/llamalink/internal/llama"
|
||||
"github.com/llamalink/llamalink/internal/quota"
|
||||
"gorm.io/gorm"
|
||||
)
|
||||
|
||||
func New(cfg *config.Config, db *gorm.DB, llamaManager *llama.Manager) *gin.Engine {
|
||||
if cfg.LlamalinkEnv == "production" {
|
||||
gin.SetMode(gin.ReleaseMode)
|
||||
}
|
||||
|
||||
r := gin.New()
|
||||
r.Use(gin.Recovery())
|
||||
r.Use(gin.Logger())
|
||||
|
||||
// Initialize services
|
||||
authService := auth.NewService(db)
|
||||
quotaSvc := quota.NewService(db)
|
||||
webhookSvc := quota.NewWebhookService(db)
|
||||
proxy := llama.NewProxy(llamaManager)
|
||||
|
||||
// Initialize handlers
|
||||
healthHandler := handlers.NewHealthHandler(db, llamaManager)
|
||||
chatHandler := handlers.NewChatHandler(proxy, authService, quotaSvc, webhookSvc)
|
||||
keysHandler := handlers.NewKeysHandler(authService)
|
||||
modelsHandler := handlers.NewModelsHandler(llamaManager)
|
||||
usageHandler := handlers.NewUsageHandler(db, quotaSvc)
|
||||
|
||||
// Health endpoints (public)
|
||||
r.GET("/health", healthHandler.Health)
|
||||
r.GET("/ready", healthHandler.Ready)
|
||||
|
||||
// API v1 group
|
||||
v1 := r.Group("/v1")
|
||||
|
||||
// Chat completions (requires API key auth + chat scope)
|
||||
chat := v1.Group("/chat")
|
||||
chat.Use(middleware.APIKeyAuth(authService))
|
||||
chat.POST("/completions", chatHandler.ChatCompletions)
|
||||
|
||||
// Keys management (admin only)
|
||||
keys := v1.Group("/keys")
|
||||
keys.Use(middleware.APIKeyAuth(authService))
|
||||
keys.Use(middleware.AdminOnly())
|
||||
keys.GET("", keysHandler.ListKeys)
|
||||
keys.POST("", keysHandler.CreateKey)
|
||||
keys.DELETE("/:id", keysHandler.RevokeKey)
|
||||
|
||||
// Models management
|
||||
models := v1.Group("/models")
|
||||
models.Use(middleware.APIKeyAuth(authService))
|
||||
models.GET("", modelsHandler.ListModels)
|
||||
models.POST("", modelsHandler.CreateModel)
|
||||
models.GET("/active", modelsHandler.GetActiveModel)
|
||||
models.GET("/:name", modelsHandler.GetActiveModel) // alias for compatibility
|
||||
|
||||
// Model load (admin only)
|
||||
modelLoad := v1.Group("/models")
|
||||
modelLoad.Use(middleware.APIKeyAuth(authService))
|
||||
modelLoad.Use(middleware.AdminOnly())
|
||||
modelLoad.POST("/:name/load", modelsHandler.LoadModel)
|
||||
|
||||
// Usage (requires API key auth)
|
||||
usage := v1.Group("/usage")
|
||||
usage.Use(middleware.APIKeyAuth(authService))
|
||||
usage.GET("", usageHandler.GetCurrentKeyUsage)
|
||||
usage.GET("/:key_id", usageHandler.GetUsage)
|
||||
|
||||
return r
|
||||
}
|
||||
Reference in New Issue
Block a user