Gadgetbridge/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/AbstractMiBandFWHelper.java

101 lines
3.1 KiB
Java

package nodomain.freeyourgadget.gadgetbridge.devices.miband;
import android.content.Context;
import android.net.Uri;
import android.support.annotation.NonNull;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import nodomain.freeyourgadget.gadgetbridge.GBApplication;
import nodomain.freeyourgadget.gadgetbridge.R;
import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
import nodomain.freeyourgadget.gadgetbridge.util.FileUtils;
/**
* Also see Mi1SFirmwareInfo.
*/
public abstract class AbstractMiBandFWHelper {
private static final Logger LOG = LoggerFactory.getLogger(AbstractMiBandFWHelper.class);
@NonNull
private final byte[] fw;
public AbstractMiBandFWHelper(Uri uri, Context context) throws IOException {
String pebblePattern = ".*\\.(pbw|pbz|pbl)";
if (uri.getPath().matches(pebblePattern)) {
throw new IOException("Firmware has a filename that looks like a Pebble app/firmware.");
}
try (InputStream in = new BufferedInputStream(context.getContentResolver().openInputStream(uri))) {
this.fw = FileUtils.readAll(in, 1024 * 1024); // 1 MB
determineFirmwareInfo(fw);
} catch (IOException ex) {
throw ex; // pass through
} catch (IllegalArgumentException ex) {
throw new IOException("This doesn't seem to be a Mi Band firmware: " + ex.getLocalizedMessage(), ex);
} catch (Exception e) {
throw new IOException("Error reading firmware file: " + uri.toString(), e);
}
}
public abstract int getFirmwareVersion();
public abstract int getFirmware2Version();
public static String formatFirmwareVersion(int version) {
if (version == -1)
return GBApplication.getContext().getString(R.string._unknown_);
return String.format("%d.%d.%d.%d",
version >> 24 & 255,
version >> 16 & 255,
version >> 8 & 255,
version & 255);
}
public String getHumanFirmwareVersion() {
return format(getFirmwareVersion());
}
public abstract String getHumanFirmwareVersion2();
public String format(int version) {
return formatFirmwareVersion(version);
}
@NonNull
public byte[] getFw() {
return fw;
}
public boolean isFirmwareWhitelisted() {
for (int wlf : getWhitelistedFirmwareVersions()) {
if (wlf == getFirmwareVersion()) {
return true;
}
}
return false;
}
protected abstract int[] getWhitelistedFirmwareVersions();
public abstract boolean isFirmwareGenerallyCompatibleWith(GBDevice device);
public abstract boolean isSingleFirmware();
/**
* @param wholeFirmwareBytes
* @return
* @throws IllegalArgumentException when the data is not recognized as firmware data
*/
@NonNull
protected abstract void determineFirmwareInfo(byte[] wholeFirmwareBytes);
public abstract void checkValid() throws IllegalArgumentException;
}