Fix CORS

go.mod

@@ -3,9 +3,9 @@ module github.com/pip-services3-go/pip-services3-rpc-go
 go 1.13
 
 require (
+	github.com/gorilla/handlers v1.5.1
 	github.com/gorilla/mux v1.7.4
 	github.com/pip-services3-go/pip-services3-commons-go v1.0.3
 	github.com/pip-services3-go/pip-services3-components-go v1.0.5
 	github.com/stretchr/testify v1.5.1
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 )

go.sum

@@ -1,14 +1,15 @@
-github.com/aymerick/raymond v2.0.2+incompatible h1:VEp3GpgdAnv9B2GFyTvqgcKvY+mfKMjPOA3SbKLtnU0=
 github.com/aymerick/raymond v2.0.2+incompatible/go.mod h1:osfaiScAUVup+UC9Nfq76eWqDhXlp+4UYaA8uhTBO6g=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
+github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
+github.com/gorilla/handlers v1.5.1 h1:9lRY6j8DEeeBT10CvO9hGW0gmky0BprnvDI5vfhUHH4=
+github.com/gorilla/handlers v1.5.1/go.mod h1:t8XrUpc4KVXb7HGyJ4/cEnwQiaxrX/hz1Zv/4g96P1Q=
 github.com/gorilla/mux v1.7.4 h1:VuZ8uybHlWmqV03+zRzdwKL4tUnIp1MAQtp1mIFE1bc=
 github.com/gorilla/mux v1.7.4/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
-github.com/kr/pretty v0.2.0 h1:s5hAObm+yFO5uHYt5dYjxi2rXrsnmRpJx4OYvIWUaQs=
 github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/pip-services3-go/pip-services3-commons-go v1.0.3 h1:ANb+nR2Efpp5+uyR2NLokPxeX9bzAcn/8+5Bvn6fp4Y=
 github.com/pip-services3-go/pip-services3-commons-go v1.0.3/go.mod h1:a2fIaCl4TUShJhgMMHmO+7773pf+Nkyrq1JDmJVYjd0=
@@ -19,19 +20,14 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/satori/go.uuid v1.2.0 h1:0uYX9dsZ2yD7q2RtLRtPSdGDWzjeM3TbMJP9utgA0ww=
 github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.2.0 h1:Hbg2NidpLE8veEBkEZTL3CvlkUIVzuU9jDplZO54c48=
 github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
-gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=

services/HttpEndpoint.go

@@ -10,6 +10,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/gorilla/handlers"
 	"github.com/gorilla/mux"
 	cconf "github.com/pip-services3-go/pip-services3-commons-go/config"
 	crefer "github.com/pip-services3-go/pip-services3-commons-go/refer"
@@ -156,13 +157,29 @@ func (c *HttpEndpoint) Open(correlationId string) error {
 	c.server = &http.Server{Addr: url}
 	c.router = mux.NewRouter()
 
-	c.router.Use(c.addCors)
-	c.router.Use(c.addCompatibility)
+	// possible fix:
+	allowedOrigins := handlers.AllowedOrigins([]string{"*"})
+	allowedMethods := handlers.AllowedMethods([]string{
+		"POST",
+		"GET",
+		"OPTIONS",
+		"PUT",
+		"DELETE",
+		"PATCH",
+	})
+	allowedHeaders := handlers.AllowedHeaders([]string{
+		"Accept",
+		"Content-Type",
+		"Content-Length",
+		"Accept-Encoding",
+		"X-CSRF-Token",
+		"Authorization",
+	})
+	c.server.Handler = handlers.CORS(allowedOrigins, allowedMethods, allowedHeaders)(c.router)
+
 	c.router.Use(c.noCache)
 	c.router.Use(c.doMaintenance)
 
-	c.server.Handler = c.router
-
 	c.performRegistrations()
 
 	if connection.Protocol() == "https" {
@@ -193,42 +210,6 @@ func (c *HttpEndpoint) Open(correlationId string) error {
 	return regErr
 }
 
-func (c *HttpEndpoint) addCors(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Access-Control-Allow-Origin", "*")
-		w.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE")
-		w.Header().Set("Access-Control-Allow-Headers", "Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")
-		next.ServeHTTP(w, r)
-	})
-}
-
-func (c *HttpEndpoint) addCompatibility(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-
-		//TODO: Write code
-
-		// req.param = (name) => {
-		//     if (req.query) {
-		//         let param = req.query[name];
-		//         if (param) return param;
-		//     }
-		//     if (req.body) {
-		//         let param = req.body[name];
-		//         if (param) return param;
-		//     }
-		//     if (req.params) {
-		//         let param = req.params[name];
-		//         if (param) return param;
-		//     }
-		//     return nil;
-
-		// }
-		// req.route.params = req.params;
-
-		next.ServeHTTP(w, r)
-	})
-}
-
 // Prevents IE from caching REST requests
 func (c *HttpEndpoint) noCache(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {