Revert "Merge pull request #4325 from flycash/revert1"

This reverts commit fad897346f, reversing
changes made to e284b0ddae.

adapter/plugins/cors/cors.go

@@ -0,0 +1,71 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package cors provides handlers to enable CORS support.
+// Usage
+//	import (
+// 		"github.com/astaxie/beego"
+//		"github.com/astaxie/beego/plugins/cors"
+// )
+//
+//	func main() {
+//		// CORS for https://foo.* origins, allowing:
+//		// - PUT and PATCH methods
+//		// - Origin header
+//		// - Credentials share
+//		beego.InsertFilter("*", beego.BeforeRouter, cors.Allow(&cors.Options{
+//			AllowOrigins:     []string{"https://*.foo.com"},
+//			AllowMethods:     []string{"PUT", "PATCH"},
+//			AllowHeaders:     []string{"Origin"},
+//			ExposeHeaders:    []string{"Content-Length"},
+//			AllowCredentials: true,
+//		}))
+//		beego.Run()
+//	}
+package cors
+
+import (
+	beego "github.com/astaxie/beego/adapter"
+	beecontext "github.com/astaxie/beego/server/web/context"
+	"github.com/astaxie/beego/server/web/filter/cors"
+
+	"github.com/astaxie/beego/adapter/context"
+)
+
+// Options represents Access Control options.
+type Options cors.Options
+
+// Header converts options into CORS headers.
+func (o *Options) Header(origin string) (headers map[string]string) {
+	return (*cors.Options)(o).Header(origin)
+}
+
+// PreflightHeader converts options into CORS headers for a preflight response.
+func (o *Options) PreflightHeader(origin, rMethod, rHeaders string) (headers map[string]string) {
+	return (*cors.Options)(o).PreflightHeader(origin, rMethod, rHeaders)
+}
+
+// IsOriginAllowed looks up if the origin matches one of the patterns
+// generated from Options.AllowOrigins patterns.
+func (o *Options) IsOriginAllowed(origin string) bool {
+	return (*cors.Options)(o).IsOriginAllowed(origin)
+}
+
+// Allow enables CORS for requests those match the provided options.
+func Allow(opts *Options) beego.FilterFunc {
+	f := cors.Allow((*cors.Options)(opts))
+	return func(c *context.Context) {
+		f((*beecontext.Context)(c))
+	}
+}