79 lines
2.4 KiB
Go
79 lines
2.4 KiB
Go
/*
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* Copyright (C) 2026 Fluxer Contributors
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*
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* This file is part of Fluxer.
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*
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* Fluxer is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Fluxer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
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*/
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package integration
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import (
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"bytes"
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"crypto/ecdsa"
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"crypto/rand"
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"crypto/sha256"
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"encoding/binary"
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"testing"
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)
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// buildAuthenticationWithoutUV constructs an authentication response where the UV flag is not set.
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func buildAuthenticationWithoutUV(t testing.TB, device *webAuthnDevice, options webAuthnAuthenticationOptions) map[string]any {
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t.Helper()
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challenge := decodeBase64URL(t, options.Challenge)
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clientData := map[string]any{
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"type": "webauthn.get",
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"challenge": encodeBase64URL(challenge),
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"origin": device.origin,
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"crossOrigin": false,
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}
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clientDataJSON := mustJSON(t, clientData)
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rpHash := sha256.Sum256([]byte(device.rpID))
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flags := byte(0x01)
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buf := &bytes.Buffer{}
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buf.Write(rpHash[:])
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buf.WriteByte(flags)
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device.signCount++
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if err := binary.Write(buf, binary.BigEndian, device.signCount); err != nil {
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t.Fatalf("failed to write sign count: %v", err)
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}
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authData := buf.Bytes()
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clientDataHash := sha256.Sum256(clientDataJSON)
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sigInput := append(authData, clientDataHash[:]...)
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digest := sha256.Sum256(sigInput)
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signature, err := ecdsa.SignASN1(rand.Reader, device.privateKey, digest[:])
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if err != nil {
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t.Fatalf("failed to sign assertion: %v", err)
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}
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return map[string]any{
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"id": encodeBase64URL(device.credentialID),
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"rawId": encodeBase64URL(device.credentialID),
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"type": "public-key",
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"clientExtensionResults": map[string]any{},
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"response": map[string]any{
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"clientDataJSON": encodeBase64URL(clientDataJSON),
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"authenticatorData": encodeBase64URL(authData),
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"signature": encodeBase64URL(signature),
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"userHandle": encodeBase64URL(device.userHandle),
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},
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}
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}
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