1 files changed, 154 insertions, 0 deletions
diff --git a/biometrics/face/aidl/default/Session.cpp b/biometrics/face/aidl/default/Session.cpp
new file mode 100644
index 0000000000..01cb620b35
--- /dev/null
+++ b/biometrics/face/aidl/default/Session.cpp
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <aidl/android/hardware/biometrics/common/BnCancellationSignal.h>
+#include <android-base/logging.h>
+
+#include "Session.h"
+
+namespace aidl::android::hardware::biometrics::face {
+
+class CancellationSignal : public common::BnCancellationSignal {
+  private:
+    std::shared_ptr<ISessionCallback> cb_;
+
+  public:
+    explicit CancellationSignal(std::shared_ptr<ISessionCallback> cb) : cb_(std::move(cb)) {}
+
+    ndk::ScopedAStatus cancel() override {
+        cb_->onError(Error::CANCELED, 0 /* vendorCode */);
+        return ndk::ScopedAStatus::ok();
+    }
+};
+
+Session::Session(std::shared_ptr<ISessionCallback> cb)
+    : cb_(std::move(cb)), mRandom(std::mt19937::default_seed) {}
+
+ndk::ScopedAStatus Session::generateChallenge() {
+    LOG(INFO) << "generateChallenge";
+    if (cb_) {
+        std::uniform_int_distribution<int64_t> dist;
+        auto challenge = dist(mRandom);
+        cb_->onChallengeGenerated(challenge);
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::revokeChallenge(int64_t challenge) {
+    LOG(INFO) << "revokeChallenge";
+    if (cb_) {
+        cb_->onChallengeRevoked(challenge);
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::getEnrollmentConfig(EnrollmentType /*enrollmentType*/,
+                                                std::vector<EnrollmentStageConfig>* return_val) {
+    *return_val = {};
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::enroll(
+        const keymaster::HardwareAuthToken& /*hat*/, EnrollmentType /*enrollmentType*/,
+        const std::vector<Feature>& /*features*/,
+        const std::optional<NativeHandle>& /*previewSurface*/,
+        std::shared_ptr<biometrics::common::ICancellationSignal>* /*return_val*/) {
+    LOG(INFO) << "enroll";
+    if (cb_) {
+        cb_->onError(Error::UNABLE_TO_PROCESS, 0 /* vendorError */);
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::authenticate(int64_t /*keystoreOperationId*/,
+                                         std::shared_ptr<common::ICancellationSignal>* return_val) {
+    LOG(INFO) << "authenticate";
+    if (cb_) {
+        cb_->onError(Error::UNABLE_TO_PROCESS, 0 /* vendorCode */);
+    }
+    *return_val = SharedRefBase::make<CancellationSignal>(cb_);
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::detectInteraction(
+        std::shared_ptr<common::ICancellationSignal>* /*return_val*/) {
+    LOG(INFO) << "detectInteraction";
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::enumerateEnrollments() {
+    LOG(INFO) << "enumerateEnrollments";
+    if (cb_) {
+        cb_->onEnrollmentsEnumerated(std::vector<int32_t>());
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::removeEnrollments(const std::vector<int32_t>& /*enrollmentIds*/) {
+    LOG(INFO) << "removeEnrollments";
+    if (cb_) {
+        cb_->onEnrollmentsRemoved(std::vector<int32_t>());
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::getFeatures() {
+    LOG(INFO) << "getFeatures";
+    if (cb_) {
+        // Must error out with UNABLE_TO_PROCESS when no faces are enrolled.
+        cb_->onError(Error::UNABLE_TO_PROCESS, 0 /* vendorCode */);
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::setFeature(const keymaster::HardwareAuthToken& /*hat*/,
+                                       Feature /*feature*/, bool /*enabled*/) {
+    LOG(INFO) << "setFeature";
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::getAuthenticatorId() {
+    LOG(INFO) << "getAuthenticatorId";
+    if (cb_) {
+        cb_->onAuthenticatorIdRetrieved(0 /* authenticatorId */);
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::invalidateAuthenticatorId() {
+    LOG(INFO) << "invalidateAuthenticatorId";
+    if (cb_) {
+        cb_->onAuthenticatorIdInvalidated(0);
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::resetLockout(const keymaster::HardwareAuthToken& /*hat*/) {
+    LOG(INFO) << "resetLockout";
+    if (cb_) {
+        cb_->onLockoutCleared();
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus Session::close() {
+    if (cb_) {
+        cb_->onSessionClosed();
+    }
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace aidl::android::hardware::biometrics::face