mirror of
https://gitee.com/johng/gf
synced 2026-07-05 21:32:17 +08:00
147 lines
3.8 KiB
Go
147 lines
3.8 KiB
Go
// Copyright 2017 gf Author(https://gitee.com/johng/gf). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://gitee.com/johng/gf.
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//
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package ghttp
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import (
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"sync"
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"net/http"
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"gitee.com/johng/gf/g/util/gconv"
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"gitee.com/johng/gf/g/encoding/gparser"
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"strconv"
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)
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// 服务端请求返回对象
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type Response struct {
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http.ResponseWriter
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bufmu sync.RWMutex // 缓冲区互斥锁
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buffer []byte // 每个请求的返回数据缓冲区
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request *Request // 关联的Request请求对象
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}
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// 返回信息，任何变量自动转换为bytes
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func (r *Response) Write(content ... interface{}) {
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if len(content) == 0 {
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return
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}
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r.bufmu.Lock()
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for _, v := range content {
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r.buffer = append(r.buffer, gconv.Bytes(v)...)
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}
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r.bufmu.Unlock()
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}
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// 返回信息，末尾增加换行标识符"\n"
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func (r *Response) Writeln(content ... interface{}) {
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if len(content) == 0 {
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return
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}
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content = append(content, "\n")
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r.Write(content...)
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}
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// 返回JSON
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func (r *Response) WriteJson(content interface{}) error {
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if b, err := gparser.VarToJson(content); err != nil {
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return err
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} else {
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r.Header().Set("Content-Type", "application/json")
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r.Write(b)
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}
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return nil
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}
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// 返回JSONP
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func (r *Response) WriteJsonP(content interface{}) error {
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if b, err := gparser.VarToJson(content); err != nil {
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return err
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} else {
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//r.Header().Set("Content-Type", "application/json")
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if callback := r.request.Get("callback"); callback != "" {
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buffer := []byte(callback)
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buffer = append(buffer, byte('('))
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buffer = append(buffer, b...)
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buffer = append(buffer, byte(')'))
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r.Write(buffer)
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} else {
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r.Write(b)
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}
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}
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return nil
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}
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// 返回XML
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func (r *Response) WriteXml(content interface{}, rootTag...string) error {
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if b, err := gparser.VarToXml(content, rootTag...); err != nil {
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return err
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} else {
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r.Header().Set("Content-Type", "application/xml")
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r.Write(b)
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}
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return nil
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}
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// 允许AJAX跨域访问
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func (r *Response) SetAllowCrossDomainRequest(allowOrigin string, allowMethods string, maxAge...int) {
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age := 3628800
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if len(maxAge) > 0 {
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age = maxAge[0]
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}
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r.Header().Set("Access-Control-Allow-Origin", allowOrigin);
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r.Header().Set("Access-Control-Allow-Methods", allowMethods);
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r.Header().Set("Access-Control-Max-Age", strconv.Itoa(age));
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}
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// 返回HTTP Code状态码
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func (r *Response) WriteStatus(code int, content...string) {
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r.Header().Set("Content-Type", "text/plain; charset=utf-8")
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r.Header().Set("X-Content-Type-Options", "nosniff")
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if len(content) > 0 {
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r.Write(content[0])
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} else {
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r.Write(http.StatusText(code))
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}
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r.WriteHeader(code)
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}
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// 返回location标识，引导客户端跳转
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func (r *Response) RedirectTo(location string) {
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r.Header().Set("Location", location)
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r.WriteHeader(http.StatusFound)
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}
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// 获取当前缓冲区中的数据
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func (r *Response) Buffer() []byte {
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r.bufmu.RLock()
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defer r.bufmu.RUnlock()
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return r.buffer
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}
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// 手动设置缓冲区内容
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func (r *Response) SetBuffer(buffer []byte) {
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r.bufmu.Lock()
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r.buffer = buffer
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r.bufmu.Unlock()
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}
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// 清空缓冲区内容
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func (r *Response) ClearBuffer() {
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r.bufmu.Lock()
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r.buffer = make([]byte, 0)
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r.bufmu.Unlock()
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}
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// 输出缓冲区数据到客户端
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func (r *Response) OutputBuffer() {
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r.bufmu.Lock()
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if len(r.buffer) > 0 {
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r.ResponseWriter.Write(r.buffer)
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r.buffer = make([]byte, 0)
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}
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r.bufmu.Unlock()
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}
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