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fix(coderd): ensure that clearing invalid oauth refresh tokens works with dbcrypt (#15721)

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https://github.com/coder/coder/pull/15608 introduced a buggy behaviour
with dbcrypt enabled.
When clearing an oauth refresh token, we had been setting the value to
the empty string.
The database encryption package considers decrypting an empty string to
be an error, as an empty encrypted string value will still have a nonce
associated with it and thus not actually be empty when stored at rest.

Instead of 'deleting' the refresh token, 'update' it to be the empty
string.
This plays nicely with dbcrypt.

It also adds a 'utility test' in the dbcrypt package to help encrypt a
value. This was useful when manually fixing users affected by this bug
on our dogfood instance.
This commit is contained in:
Cian Johnston
2024-12-03 13:26:31 -06:00
committed by GitHub
parent ebfc133641
commit e744cde86f
13 changed files with 184 additions and 94 deletions
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coderd/database/dbmem/dbmem.go
+23 -23
View File
@@ -8607,29 +8607,6 @@ func (q *FakeQuerier) RegisterWorkspaceProxy(_ context.Context, arg database.Reg
return database.WorkspaceProxy{}, sql.ErrNoRows
}
func (q *FakeQuerier) RemoveRefreshToken(_ context.Context, arg database.RemoveRefreshTokenParams) error {
if err := validateDatabaseType(arg); err != nil {
return err
}
q.mutex.Lock()
defer q.mutex.Unlock()
for index, gitAuthLink := range q.externalAuthLinks {
if gitAuthLink.ProviderID != arg.ProviderID {
continue
}
if gitAuthLink.UserID != arg.UserID {
continue
}
gitAuthLink.UpdatedAt = arg.UpdatedAt
gitAuthLink.OAuthRefreshToken = ""
q.externalAuthLinks[index] = gitAuthLink
return nil
}
return sql.ErrNoRows
}
func (q *FakeQuerier) RemoveUserFromAllGroups(_ context.Context, userID uuid.UUID) error {
q.mutex.Lock()
defer q.mutex.Unlock()
@@ -8849,6 +8826,29 @@ func (q *FakeQuerier) UpdateExternalAuthLink(_ context.Context, arg database.Upd
return database.ExternalAuthLink{}, sql.ErrNoRows
}
func (q *FakeQuerier) UpdateExternalAuthLinkRefreshToken(_ context.Context, arg database.UpdateExternalAuthLinkRefreshTokenParams) error {
if err := validateDatabaseType(arg); err != nil {
return err
}
q.mutex.Lock()
defer q.mutex.Unlock()
for index, gitAuthLink := range q.externalAuthLinks {
if gitAuthLink.ProviderID != arg.ProviderID {
continue
}
if gitAuthLink.UserID != arg.UserID {
continue
}
gitAuthLink.UpdatedAt = arg.UpdatedAt
gitAuthLink.OAuthRefreshToken = arg.OAuthRefreshToken
q.externalAuthLinks[index] = gitAuthLink
return nil
}
return sql.ErrNoRows
}
func (q *FakeQuerier) UpdateGitSSHKey(_ context.Context, arg database.UpdateGitSSHKeyParams) (database.GitSSHKey, error) {
if err := validateDatabaseType(arg); err != nil {
return database.GitSSHKey{}, err