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https://github.com/matrix-org/dendrite
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a624eab309
- Lower cased error messages Signed-off-by: Ryan Whittington <twentybitdev@gmail.com> Co-authored-by: kegsay <kegan@matrix.org>
49 lines
1.6 KiB
Go
49 lines
1.6 KiB
Go
// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package userutil
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import (
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"errors"
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"fmt"
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"strings"
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"github.com/matrix-org/gomatrixserverlib"
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)
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// ParseUsernameParam extracts localpart from usernameParam.
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// usernameParam can either be a user ID or just the localpart/username.
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// If serverName is passed, it is verified against the domain obtained from usernameParam (if present)
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// Returns error in case of invalid usernameParam.
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func ParseUsernameParam(usernameParam string, expectedServerName *gomatrixserverlib.ServerName) (string, error) {
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localpart := usernameParam
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if strings.HasPrefix(usernameParam, "@") {
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lp, domain, err := gomatrixserverlib.SplitID('@', usernameParam)
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if err != nil {
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return "", errors.New("invalid username")
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}
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if expectedServerName != nil && domain != *expectedServerName {
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return "", errors.New("user ID does not belong to this server")
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}
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localpart = lp
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}
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return localpart, nil
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}
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// MakeUserID generates user ID from localpart & server name
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func MakeUserID(localpart string, server gomatrixserverlib.ServerName) string {
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return fmt.Sprintf("@%s:%s", localpart, string(server))
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}
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