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prevent unicode-confusion in password by applying PRECIS, and username/email address by applying unicode NFC normalization
an é (e with accent) can also be written as e+\u0301. the first form is NFC, the second NFD. when logging in, we transform usernames (email addresses) to NFC. so both forms will be accepted. if a client is using NFD, they can log in too. for passwords, we apply the PRECIS "opaquestring", which (despite the name) transforms the value too: unicode spaces are replaced with ascii spaces. the string is also normalized to NFC. PRECIS may reject confusing passwords when you set a password.
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@ -70,7 +70,7 @@ func FuzzServer(f *testing.F) {
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f.Fatalf("open account: %v", err)
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}
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defer acc.Close()
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err = acc.SetPassword(log, "testtest")
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err = acc.SetPassword(log, password0)
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if err != nil {
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f.Fatalf("set password: %v", err)
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}
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