mathiasandClaude Opus 4.8
72ba89be63
Bumps mcp-chassis to v0.3.0, which adds structured audit logging on every auth rejection and returns 503 temporarily_unavailable (not a silent 401) when Dex is unreachable at validation time. Wires slog.SetDefault so those audit lines flow through gitea-mcp's JSON handler. Together with the earlier /healthz jwt-status reporting and startup degradation warning, this closes #6 (Dex-down is now observable and distinct from a bad token) and #9 (auth failures are audit-logged: reason, IP, token type, hashed fingerprint — never the raw token). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
78 lines
2.5 KiB
Go
78 lines
2.5 KiB
Go
package main
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import (
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"context"
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"log/slog"
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"net/http"
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"os"
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"strings"
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chassisauth "git.d-ma.be/mathias/mcp-chassis/auth"
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"git.d-ma.be/mathias/gitea-mcp/internal/allowlist"
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"git.d-ma.be/mathias/gitea-mcp/internal/auth"
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"git.d-ma.be/mathias/gitea-mcp/internal/config"
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"git.d-ma.be/mathias/gitea-mcp/internal/gitea"
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"git.d-ma.be/mathias/gitea-mcp/internal/mcp"
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"git.d-ma.be/mathias/gitea-mcp/internal/registry"
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"git.d-ma.be/mathias/gitea-mcp/internal/tools"
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)
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func main() {
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logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
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// Route the chassis's package-level slog (auth audit logs, gitea-mcp#9) through
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// the same structured handler as the rest of the server.
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slog.SetDefault(logger)
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cfg, err := config.Load()
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if err != nil {
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logger.Error("load config", "err", err)
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os.Exit(1)
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}
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ctx := context.Background()
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jwtValidator, jwtInitErr := chassisauth.NewJWTValidator(ctx, cfg.DexIssuerURL, cfg.MCPAudience)
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if jwtInitErr != nil {
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logger.Warn("jwt validator init failed; JWT auth degraded", "err", jwtInitErr)
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}
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giteaClient := gitea.NewClient(cfg.GiteaBaseURL, cfg.DefaultToken)
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ownerAllow := allowlist.New(cfg.AllowedOwners)
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reg := registry.New()
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tools.RegisterAll(reg, giteaClient, ownerAllow, cfg.GiteaBaseURL, "mathias", "template-go-web")
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mcpSrv := mcp.NewServer(mcp.ServerOptions{
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Registry: reg,
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Sessions: mcp.NewSessionStore(),
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})
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// resourceMetadataURL is only emitted in the WWW-Authenticate challenge
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// when both MCPResourceURL and a Dex issuer are wired; empty disables
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// the challenge so static-only clients aren't pushed into OAuth discovery.
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var resourceMetadataURL string
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if cfg.MCPResourceURL != "" && cfg.DexIssuerURL != "" {
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resourceMetadataURL = strings.TrimRight(cfg.MCPResourceURL, "/") + "/.well-known/oauth-protected-resource"
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}
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mux := http.NewServeMux()
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mux.Handle("/mcp", mcp.OriginAllowlist(cfg.OriginAllowlist)(
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chassisauth.BearerMiddleware(cfg.StaticToken, jwtValidator, "gitea", resourceMetadataURL,
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auth.CallerMiddleware(logger, mcpSrv),
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),
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))
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mux.Handle("/healthz", newHealthzHandler(cfg.DexIssuerURL != "", jwtValidator != nil, jwtInitErr))
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if cfg.DexIssuerURL != "" {
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mux.HandleFunc("GET /.well-known/oauth-protected-resource",
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chassisauth.ProtectedResourceHandler(cfg.MCPResourceURL, cfg.DexIssuerURL))
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}
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addr := ":" + cfg.Port
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logger.Info("gitea-mcp starting", "addr", addr, "version", "0.1.0")
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if err := http.ListenAndServe(addr, mux); err != nil {
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logger.Error("server stopped", "err", err)
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os.Exit(1)
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}
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}
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