gf/net/ghttp/ghttp_response_cors.go

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// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/gogf/gf.
//
package ghttp
import (
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"github.com/gogf/gf/util/gconv"
)
// See https://www.w3.org/TR/cors/ .
// 服务端允许跨域请求选项
type CORSOptions struct {
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AllowOrigin string // Access-Control-Allow-Origin
AllowCredentials string // Access-Control-Allow-Credentials
ExposeHeaders string // Access-Control-Expose-Headers
MaxAge int // Access-Control-Max-Age
AllowMethods string // Access-Control-Allow-Methods
AllowHeaders string // Access-Control-Allow-Headers
}
// 默认的CORS配置
func (r *Response) DefaultCORSOptions() CORSOptions {
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return CORSOptions{
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AllowOrigin: "*",
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AllowMethods: HTTP_METHODS,
AllowCredentials: "true",
MaxAge: 3628800,
}
}
// See https://www.w3.org/TR/cors/ .
// 允许请求跨域访问.
func (r *Response) CORS(options CORSOptions) {
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if options.AllowOrigin != "" {
r.Header().Set("Access-Control-Allow-Origin", options.AllowOrigin)
}
if options.AllowCredentials != "" {
r.Header().Set("Access-Control-Allow-Credentials", options.AllowCredentials)
}
if options.ExposeHeaders != "" {
r.Header().Set("Access-Control-Expose-Headers", options.ExposeHeaders)
}
if options.MaxAge != 0 {
r.Header().Set("Access-Control-Max-Age", gconv.String(options.MaxAge))
}
if options.AllowMethods != "" {
r.Header().Set("Access-Control-Allow-Methods", options.AllowMethods)
}
if options.AllowHeaders != "" {
r.Header().Set("Access-Control-Allow-Headers", options.AllowHeaders)
}
}
// 允许请求跨域访问(使用默认配置).
func (r *Response) CORSDefault() {
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r.CORS(r.DefaultCORSOptions())
}