mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-06-02 21:39:25 +00:00
1cdc163276
* add httpguts (ew) * add ValidateRequest err wrapping logic * don't retry on unrecoverable errors * i am very clever
64 lines
2.1 KiB
Go
64 lines
2.1 KiB
Go
/*
|
|
GoToSocial
|
|
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Affero General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package httpclient
|
|
|
|
import (
|
|
"fmt"
|
|
"net/http"
|
|
"strings"
|
|
|
|
"golang.org/x/net/http/httpguts"
|
|
)
|
|
|
|
// ValidateRequest performs the same request validation logic found in the default
|
|
// net/http.Transport{}.roundTrip() function, but pulls it out into this separate
|
|
// function allowing validation errors to be wrapped under a single error type.
|
|
func ValidateRequest(r *http.Request) error {
|
|
switch {
|
|
case r.URL == nil:
|
|
return fmt.Errorf("%w: nil url", ErrInvalidRequest)
|
|
case r.Header == nil:
|
|
return fmt.Errorf("%w: nil header", ErrInvalidRequest)
|
|
case r.URL.Host == "":
|
|
return fmt.Errorf("%w: empty url host", ErrInvalidRequest)
|
|
case r.URL.Scheme != "http" && r.URL.Scheme != "https":
|
|
return fmt.Errorf("%w: unsupported protocol %q", ErrInvalidRequest, r.URL.Scheme)
|
|
case strings.IndexFunc(r.Method, func(r rune) bool { return !httpguts.IsTokenRune(r) }) != -1:
|
|
return fmt.Errorf("%w: invalid method %q", ErrInvalidRequest, r.Method)
|
|
}
|
|
|
|
for key, values := range r.Header {
|
|
// Check field key name is valid
|
|
if !httpguts.ValidHeaderFieldName(key) {
|
|
return fmt.Errorf("%w: invalid header field name %q", ErrInvalidRequest, key)
|
|
}
|
|
|
|
// Check each field value is valid
|
|
for i := 0; i < len(values); i++ {
|
|
if !httpguts.ValidHeaderFieldValue(values[i]) {
|
|
return fmt.Errorf("%w: invalid header field value %q", ErrInvalidRequest, values[i])
|
|
}
|
|
}
|
|
}
|
|
|
|
// ps. kim wrote this
|
|
|
|
return nil
|
|
}
|