71 lines
2.4 KiB
Go
71 lines
2.4 KiB
Go
// Copyright 2014 beego Author. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package cors provides handlers to enable CORS support.
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// Usage
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// import (
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// "github.com/beego/beego/v2"
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// "github.com/beego/beego/v2/server/web/filter/cors"
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// )
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//
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// func main() {
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// // CORS for https://foo.* origins, allowing:
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// // - PUT and PATCH methods
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// // - Origin header
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// // - Credentials share
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// beego.InsertFilter("*", beego.BeforeRouter, cors.Allow(&cors.Options{
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// AllowOrigins: []string{"https://*.foo.com"},
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// AllowMethods: []string{"PUT", "PATCH"},
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// AllowHeaders: []string{"Origin"},
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// ExposeHeaders: []string{"Content-Length"},
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// AllowCredentials: true,
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// }))
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// beego.Run()
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// }
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package cors
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import (
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beego "github.com/beego/beego/v2/adapter"
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"github.com/beego/beego/v2/adapter/context"
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beecontext "github.com/beego/beego/v2/server/web/context"
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"github.com/beego/beego/v2/server/web/filter/cors"
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)
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// Options represents Access Control options.
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type Options cors.Options
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// Header converts options into CORS headers.
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func (o *Options) Header(origin string) (headers map[string]string) {
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return (*cors.Options)(o).Header(origin)
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}
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// PreflightHeader converts options into CORS headers for a preflight response.
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func (o *Options) PreflightHeader(origin, rMethod, rHeaders string) (headers map[string]string) {
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return (*cors.Options)(o).PreflightHeader(origin, rMethod, rHeaders)
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}
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// IsOriginAllowed looks up if the origin matches one of the patterns
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// generated from Options.AllowOrigins patterns.
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func (o *Options) IsOriginAllowed(origin string) bool {
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return (*cors.Options)(o).IsOriginAllowed(origin)
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}
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// Allow enables CORS for requests those match the provided options.
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func Allow(opts *Options) beego.FilterFunc {
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f := cors.Allow((*cors.Options)(opts))
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return func(c *context.Context) {
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f((*beecontext.Context)(c))
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}
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}
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