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Allow + in MIDs as per MSC4009 (#3313)

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This PR adds `+` to the username regex, per MSC4009.

### Pull Request Checklist

<!-- Please read
https://matrix-org.github.io/dendrite/development/contributing before
submitting your pull request -->

* [x] I have added Go unit tests or [Complement integration
tests](https://github.com/matrix-org/complement) for this PR _or_ I have
justified why this PR doesn't need tests
* [x] Pull request includes a [sign off below using a legally
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name](https://matrix-org.github.io/dendrite/development/contributing#sign-off)
_or_ I have already signed off privately

Signed-off-by: `Matt Strapp <matt@mattstrapp.net>`
This commit is contained in:
Matthew Strapp 2024-01-25 14:17:20 -06:00 committed by GitHub
parent 00217a69d1
commit a4817f31c0
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2 changed files with 17 additions and 2 deletions
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4
internal/validate.go
View file

@ -38,9 +38,9 @@ var (
ErrPasswordTooLong = fmt.Errorf("password too long: max %d characters", maxPasswordLength)
ErrPasswordWeak = fmt.Errorf("password too weak: min %d characters", minPasswordLength)
ErrUsernameTooLong = fmt.Errorf("username exceeds the maximum length of %d characters", maxUsernameLength)
ErrUsernameInvalid = errors.New("username can only contain characters a-z, 0-9, or '_-./='")
ErrUsernameInvalid = errors.New("username can only contain characters a-z, 0-9, or '_+-./='")
ErrUsernameUnderscore = errors.New("username cannot start with a '_'")
validUsernameRegex = regexp.MustCompile(`^[0-9a-z_\-=./]+$`)
validUsernameRegex = regexp.MustCompile(`^[0-9a-z_\-+=./]+$`)
)
// ValidatePassword returns an error if the password is invalid

15
internal/validate_test.go
View file

@ -129,6 +129,11 @@ func Test_validateUsername(t *testing.T) {
localpart: "i_am_allowed=1",
domain: "localhost",
},
{
name: "special characters are allowed 3",
localpart: "+55555555555",
domain: "localhost",
},
{
name: "not all special characters are allowed",
localpart: "notallowed#", // contains #
@ -139,6 +144,16 @@ func Test_validateUsername(t *testing.T) {
JSON: spec.InvalidUsername(ErrUsernameInvalid.Error()),
},
},
{
name: "not all special characters are allowed 2",
localpart: "<notallowed", // contains <
domain: "localhost",
wantErr: ErrUsernameInvalid,
wantJSON: &util.JSONResponse{
Code: http.StatusBadRequest,
JSON: spec.InvalidUsername(ErrUsernameInvalid.Error()),
},
},
{
name: "username containing numbers",
localpart: "hello1337",