Merge pull request #193 from google/gorrila/mux/gorrila/mux

Support for gorrila/mux framework

go/gorrila/mux/go.mod

@@ -0,0 +1,14 @@
+module github.com/google/sqlcommenter/go/gorrila/mux
+
+go 1.19
+
+require (
+	github.com/google/sqlcommenter/go/core v0.0.5-beta
+	github.com/google/sqlcommenter/go/net/http v0.0.3-beta
+	github.com/gorilla/mux v1.8.0
+)
+
+require (
+	go.opentelemetry.io/otel v1.11.1 // indirect
+	go.opentelemetry.io/otel/trace v1.11.1 // indirect
+)

go/gorrila/mux/go.sum

@@ -0,0 +1,17 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/go-logr/logr v1.2.3 h1:2DntVwHkVopvECVRSlL5PSo9eG+cAkDCuckLubN+rq0=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/sqlcommenter/go/core v0.0.5-beta h1:axqYR1zQCCdRBLnwr/j+ckllBSBJ7uaVdsnANuGzCUI=
+github.com/google/sqlcommenter/go/core v0.0.5-beta/go.mod h1:GORu2htXRC4xtejBzOa4ct1L20pohP81DFNYKdCJI70=
+github.com/google/sqlcommenter/go/net/http v0.0.3-beta h1:IE/vO3xKddn/2Bq3k+hSy4CxcEuvE1lUiIDYTXjApzA=
+github.com/google/sqlcommenter/go/net/http v0.0.3-beta/go.mod h1:duXQQvXZYCX8eQ+XOrlojWF512ltEp1eSKXc/KiS9lg=
+github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
+github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
+go.opentelemetry.io/otel v1.11.1 h1:4WLLAmcfkmDk2ukNXJyq3/kiz/3UzCaYq6PskJsaou4=
+go.opentelemetry.io/otel v1.11.1/go.mod h1:1nNhXBbWSD0nsL38H6btgnFN2k4i0sNLHNNMZMSbUGE=
+go.opentelemetry.io/otel/trace v1.11.1 h1:ofxdnzsNrGBYXbP7t7zpUK281+go5rF7dvdIZXF8gdQ=
+go.opentelemetry.io/otel/trace v1.11.1/go.mod h1:f/Q9G7vzk5u91PhbmKbg1Qn0rzH1LJ4vbPHFGkTPtOk=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

go/gorrila/mux/mux.go

@@ -0,0 +1,22 @@
+package mux
+
+import (
+	"net/http"
+
+	"github.com/google/sqlcommenter/go/core"
+	httpnet "github.com/google/sqlcommenter/go/net/http"
+	"github.com/gorilla/mux"
+)
+
+func SQLCommenterMiddleware(h http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		route := mux.CurrentRoute(r)
+		pathTemplate, err := route.GetPathTemplate()
+		if err != nil {
+			pathTemplate = ""
+		}
+
+		ctx := core.ContextInject(r.Context(), httpnet.NewHTTPRequestTags("gorrila/mux", pathTemplate, core.GetFunctionName(route.GetHandler())))
+		h.ServeHTTP(w, r.WithContext(ctx))
+	})
+}

go/gorrila/mux/mux_test.go

@@ -0,0 +1,48 @@
+package mux
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/google/sqlcommenter/go/core"
+	"github.com/gorilla/mux"
+)
+
+func TestSQLCommenterMiddleware(t *testing.T) {
+	framework := "gorrila/mux"
+	route := "/test/{id}"
+	action := "github.com/google/sqlcommenter/go/gorrila/mux.TestSQLCommenterMiddleware.func1"
+
+	mockHandler := func(w http.ResponseWriter, r *http.Request) {
+		ctx := r.Context()
+		_framework := ctx.Value(core.Framework)
+		_route := ctx.Value(core.Route)
+		_action := ctx.Value(core.Action)
+
+		if _framework != framework {
+			t.Errorf("mismatched framework - got: %s, want: %s", _framework, framework)
+		}
+
+		if _route != route {
+			t.Errorf("mismatched route - got: %s, want: %s", _route, route)
+		}
+
+		if _action != action {
+			t.Errorf("mismatched action - got: %s, want: %s", _action, action)
+		}
+	}
+
+	router := mux.NewRouter()
+	router.Use(SQLCommenterMiddleware)
+	router.HandleFunc(route, mockHandler).Methods("GET")
+
+	rr := httptest.NewRecorder()
+	req, err := http.NewRequest("GET", "/test/1", nil)
+
+	if err != nil {
+		t.Errorf("error while building req: %v", err)
+	}
+
+	router.ServeHTTP(rr, req)
+}