gitea/services/context/response.go
Lunny Xiao 29f149bd9f
Move context from modules to services ()
Since `modules/context` has to depend on `models` and many other
packages, it should be moved from `modules/context` to
`services/context` according to design principles. There is no logic
code change on this PR, only move packages.

- Move `code.gitea.io/gitea/modules/context` to
`code.gitea.io/gitea/services/context`
- Move `code.gitea.io/gitea/modules/contexttest` to
`code.gitea.io/gitea/services/contexttest` because of depending on
context
- Move `code.gitea.io/gitea/modules/upload` to
`code.gitea.io/gitea/services/context/upload` because of depending on
context
2024-02-27 08:12:22 +01:00

104 lines
2.2 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package context
import (
"net/http"
web_types "code.gitea.io/gitea/modules/web/types"
)
// ResponseWriter represents a response writer for HTTP
type ResponseWriter interface {
http.ResponseWriter
http.Flusher
web_types.ResponseStatusProvider
Before(func(ResponseWriter))
Status() int // used by access logger template
Size() int // used by access logger template
}
var _ ResponseWriter = &Response{}
// Response represents a response
type Response struct {
http.ResponseWriter
written int
status int
befores []func(ResponseWriter)
beforeExecuted bool
}
// Write writes bytes to HTTP endpoint
func (r *Response) Write(bs []byte) (int, error) {
if !r.beforeExecuted {
for _, before := range r.befores {
before(r)
}
r.beforeExecuted = true
}
size, err := r.ResponseWriter.Write(bs)
r.written += size
if err != nil {
return size, err
}
if r.status == 0 {
r.status = http.StatusOK
}
return size, nil
}
func (r *Response) Status() int {
return r.status
}
func (r *Response) Size() int {
return r.written
}
// WriteHeader write status code
func (r *Response) WriteHeader(statusCode int) {
if !r.beforeExecuted {
for _, before := range r.befores {
before(r)
}
r.beforeExecuted = true
}
if r.status == 0 {
r.status = statusCode
r.ResponseWriter.WriteHeader(statusCode)
}
}
// Flush flushes cached data
func (r *Response) Flush() {
if f, ok := r.ResponseWriter.(http.Flusher); ok {
f.Flush()
}
}
// WrittenStatus returned status code written
func (r *Response) WrittenStatus() int {
return r.status
}
// Before allows for a function to be called before the ResponseWriter has been written to. This is
// useful for setting headers or any other operations that must happen before a response has been written.
func (r *Response) Before(f func(ResponseWriter)) {
r.befores = append(r.befores, f)
}
func WrapResponseWriter(resp http.ResponseWriter) *Response {
if v, ok := resp.(*Response); ok {
return v
}
return &Response{
ResponseWriter: resp,
status: 0,
befores: make([]func(ResponseWriter), 0),
}
}