api/vendor/github.com/samedi/caldav-go/handlers/response.go

73 lines
1.6 KiB
Go

package handlers
import (
"github.com/samedi/caldav-go/errs"
"io"
"net/http"
)
// Response represents the handled CalDAV response. Used this when one needs to proxy the generated
// response before being sent back to the client.
type Response struct {
Status int
Header http.Header
Body string
Error error
}
// NewResponse initializes a new response object.
func NewResponse() *Response {
return &Response{
Header: make(http.Header),
}
}
// Set sets the the status and body of the response.
func (r *Response) Set(status int, body string) *Response {
r.Status = status
r.Body = body
return r
}
// SetHeader adds a header to the response.
func (r *Response) SetHeader(key, value string) *Response {
r.Header.Set(key, value)
return r
}
// SetError sets the response as an error. It inflects the response status based on the provided error.
func (r *Response) SetError(err error) *Response {
r.Error = err
switch err {
case errs.ResourceNotFoundError:
r.Status = http.StatusNotFound
case errs.UnauthorizedError:
r.Status = http.StatusUnauthorized
case errs.ForbiddenError:
r.Status = http.StatusForbidden
default:
r.Status = http.StatusInternalServerError
}
return r
}
// Write writes the response back to the client using the provided `ResponseWriter`.
func (r *Response) Write(writer http.ResponseWriter) {
if r.Error == errs.UnauthorizedError {
r.SetHeader("WWW-Authenticate", `Basic realm="Restricted"`)
}
for key, values := range r.Header {
for _, value := range values {
writer.Header().Set(key, value)
}
}
writer.WriteHeader(r.Status)
io.WriteString(writer, r.Body)
}