mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-09-11 08:46:43 +02:00
113 lines
4.3 KiB
Java
113 lines
4.3 KiB
Java
/* Copyright (C) 2016-2018 Andreas Shimokawa, Carsten Pfeiffer
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This file is part of Gadgetbridge.
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Gadgetbridge 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
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by 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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Gadgetbridge 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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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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package nodomain.freeyourgadget.gadgetbridge.service.devices.miband;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* Abstract Mi firmware info class with two child info instances.
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*/
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public abstract class CompositeMiFirmwareInfo<T extends AbstractMiFirmwareInfo> extends AbstractMiFirmwareInfo {
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private static final Logger LOG = LoggerFactory.getLogger(CompositeMiFirmwareInfo.class);
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private final T fw1Info;
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private final T fw2Info;
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protected CompositeMiFirmwareInfo(byte[] wholeFirmwareBytes, T info1, T info2) {
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super(wholeFirmwareBytes);
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fw1Info = info1;
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fw2Info = info2;
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}
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@Override
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public void checkValid() throws IllegalArgumentException {
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super.checkValid();
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if (getFirst().getFirmwareOffset() == getSecond().getFirmwareOffset()) {
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throw new IllegalArgumentException("Illegal firmware offsets: " + getLengthsOffsetsString());
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}
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if (getFirst().getFirmwareOffset() < 0 || getSecond().getFirmwareOffset() < 0
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|| getFirst().getFirmwareLength() <= 0 || getSecond().getFirmwareLength() <= 0) {
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throw new IllegalArgumentException("Illegal firmware offsets/lengths: " + getLengthsOffsetsString());
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}
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int firstEndIndex = getFirst().getFirmwareOffset() + getFirst().getFirmwareLength();
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if (getSecond().getFirmwareOffset() < firstEndIndex) {
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throw new IllegalArgumentException("Invalid firmware, second fw starts before first fw ends: " + firstEndIndex + "," + getSecond().getFirmwareOffset());
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}
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int secondEndIndex = getSecond().getFirmwareOffset();
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if (wholeFirmwareBytes.length < firstEndIndex || wholeFirmwareBytes.length < secondEndIndex) {
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throw new IllegalArgumentException("Invalid firmware size, or invalid offsets/lengths: " + getLengthsOffsetsString());
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}
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getFirst().checkValid();
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getSecond().checkValid();
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}
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protected String getLengthsOffsetsString() {
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return getFirst().getFirmwareOffset() + "," + getFirst().getFirmwareLength()
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+ "; "
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+ getSecond().getFirmwareOffset() + "," + getSecond().getFirmwareLength();
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}
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@Override
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public T getFirst() {
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return fw1Info;
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}
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@Override
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public T getSecond() {
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return fw2Info;
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}
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@Override
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protected boolean isGenerallySupportedFirmware() {
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try {
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if (!isHeaderValid()) {
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LOG.info("unrecognized header");
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return false;
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}
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return fw1Info.isGenerallySupportedFirmware()
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&& fw2Info.isGenerallySupportedFirmware()
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&& fw1Info.getFirmwareBytes().length > 0
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&& fw2Info.getFirmwareBytes().length > 0;
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} catch (IndexOutOfBoundsException ex) {
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LOG.warn("invalid firmware or bug: " + ex.getLocalizedMessage(), ex);
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return false;
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} catch (IllegalArgumentException ex) {
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LOG.warn("not supported 1S firmware: " + ex.getLocalizedMessage(), ex);
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return false;
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}
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}
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@Override
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public int getFirmwareOffset() {
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throw new UnsupportedOperationException("call this method on getFirmwareXInfo()");
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}
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@Override
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public int getFirmwareLength() {
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throw new UnsupportedOperationException("call this method on getFirmwareXInfo()");
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}
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@Override
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public int getFirmwareVersion() {
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throw new UnsupportedOperationException("call this method on getFirmwareXInfo()");
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}
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}
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