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Beego/pkg/adapter/plugins/cors/cors.go
2020-09-05 16:54:22 +08:00

72 lines
2.4 KiB
Go

// 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/pkg/adapter"
beecontext "github.com/astaxie/beego/pkg/server/web/context"
"github.com/astaxie/beego/pkg/server/web/filter/cors"
"github.com/astaxie/beego/pkg/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))
}
}