redirect caddy logging to the non-headless tui when appropriate (#392)

endpoints/proxy/caddyRequestsMiddleware.go

@@ -0,0 +1,73 @@
+package proxy
+
+import (
+	"fmt"
+	"github.com/openziti/zrok/endpoints"
+	"net/http"
+	"time"
+
+	"github.com/caddyserver/caddy/v2"
+	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
+	"github.com/caddyserver/caddy/v2/caddyconfig/httpcaddyfile"
+	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
+)
+
+var middlewareRequests chan *endpoints.Request
+
+func init() {
+	caddy.RegisterModule(ZrokRequestsMiddleware{})
+	httpcaddyfile.RegisterHandlerDirective("zrok_requests", parseCaddyfile)
+}
+
+type ZrokRequestsMiddleware struct{}
+
+// CaddyModule returns the Caddy module information.
+func (ZrokRequestsMiddleware) CaddyModule() caddy.ModuleInfo {
+	return caddy.ModuleInfo{
+		ID:  "http.handlers.zrok_requests",
+		New: func() caddy.Module { return new(ZrokRequestsMiddleware) },
+	}
+}
+
+// Provision implements caddy.Provisioner.
+func (m *ZrokRequestsMiddleware) Provision(ctx caddy.Context) error {
+	return nil
+}
+
+// Validate implements caddy.Validator.
+func (m ZrokRequestsMiddleware) Validate() error {
+	return nil
+}
+
+// ServeHTTP implements caddyhttp.MiddlewareHandler.
+func (m ZrokRequestsMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyhttp.Handler) error {
+	if middlewareRequests != nil {
+		middlewareRequests <- &endpoints.Request{
+			Stamp:      time.Now(),
+			RemoteAddr: fmt.Sprintf("%v", r.Header["X-Real-Ip"]),
+			Method:     r.Method,
+			Path:       r.URL.String(),
+		}
+	}
+	return next.ServeHTTP(w, r)
+}
+
+// UnmarshalCaddyfile implements caddyfile.Unmarshaler.
+func (m *ZrokRequestsMiddleware) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
+	return nil
+}
+
+// parseCaddyfile unmarshals tokens from h into a new ZrokRequestsMiddleware.
+func parseCaddyfile(h httpcaddyfile.Helper) (caddyhttp.MiddlewareHandler, error) {
+	var m ZrokRequestsMiddleware
+	err := m.UnmarshalCaddyfile(h.Dispenser)
+	return m, err
+}
+
+// Interface guards
+var (
+	_ caddy.Provisioner           = (*ZrokRequestsMiddleware)(nil)
+	_ caddy.Validator             = (*ZrokRequestsMiddleware)(nil)
+	_ caddyhttp.MiddlewareHandler = (*ZrokRequestsMiddleware)(nil)
+	_ caddyfile.Unmarshaler       = (*ZrokRequestsMiddleware)(nil)
+)