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responses.go
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responses.go
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package goproxy
import (
"bytes"
"io"
"net/http"
)
// Will generate a valid http response to the given request the response will have
// the given contentType, and http status.
// Typical usage, refuse to process requests to local addresses:
//
// proxy.OnRequest(IsLocalHost()).DoFunc(func(r *http.Request, ctx *goproxy.ProxyCtx) (*http.Request,*http.Response) {
// return nil,NewResponse(r,goproxy.ContentTypeHtml,http.StatusUnauthorized,
// `<!doctype html><html><head><title>Can't use proxy for local addresses</title></head><body/></html>`)
// })
func NewResponse(r *http.Request, contentType string, status int, body string) *http.Response {
resp := &http.Response{}
resp.Request = r
resp.TransferEncoding = r.TransferEncoding
resp.Header = make(http.Header)
resp.Header.Add("Content-Type", contentType)
resp.StatusCode = status
resp.Status = http.StatusText(status)
buf := bytes.NewBufferString(body)
resp.ContentLength = int64(buf.Len())
resp.Body = io.NopCloser(buf)
return resp
}
const (
ContentTypeText = "text/plain"
ContentTypeHtml = "text/html"
)
// Alias for NewResponse(r,ContentTypeText,http.StatusAccepted,text).
func TextResponse(r *http.Request, text string) *http.Response {
return NewResponse(r, ContentTypeText, http.StatusAccepted, text)
}