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Code Issues 1 Packages Projects Releases Wiki Activity

Garmin: Send app notification icons

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This commit is contained in:
José Rebelo
2025-11-22 17:45:23 +00:00
parent de716da072
commit 8e95699e07
2 changed files with 121 additions and 1 deletions
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app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/garmin/http/HttpHandler.java
+1 -1
View File
@@ -27,7 +27,7 @@ public class HttpHandler {
agpsHandler = new AgpsHandler(deviceSupport);
contactsHandler = new ContactsHandler(deviceSupport);
oauthHandler = new OauthHandler(deviceSupport);
imageServiceHandler = new ImageServiceHandler();
imageServiceHandler = new ImageServiceHandler(deviceSupport);
}
public GdiHttpService.HttpService handle(final GdiHttpService.HttpService httpService) {
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/garmin/http/ImageServiceHandler.java
+120
View File
@@ -1,17 +1,29 @@
package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.http;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import androidx.annotation.NonNull;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayOutputStream;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.charset.StandardCharsets;
import java.util.Collections;
import java.util.List;
import java.util.UUID;
import nodomain.freeyourgadget.gadgetbridge.proto.garmin.GdiHttpService;
import nodomain.freeyourgadget.gadgetbridge.service.btle.BLETypeConversions;
import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.GarminSupport;
import nodomain.freeyourgadget.gadgetbridge.util.NotificationUtils;
public class ImageServiceHandler {
private static final Logger LOG = LoggerFactory.getLogger(ImageServiceHandler.class);
@@ -20,6 +32,12 @@ public class ImageServiceHandler {
//.serializeNulls()
.create();
private final GarminSupport deviceSupport;
public ImageServiceHandler(final GarminSupport deviceSupport) {
this.deviceSupport = deviceSupport;
}
public GarminHttpResponse handleRequest(final GarminHttpRequest request) {
if (request.getRawRequest().getMethod() != GdiHttpService.HttpService.Method.GET) {
LOG.warn("Known image service requests should be GET");
@@ -33,6 +51,46 @@ public class ImageServiceHandler {
final String ownerAliasId = request.getQuery().get("ownerAliasId");
final Drawable icon = NotificationUtils.getAppIcon(
deviceSupport.getContext(),
ownerAliasId
);
if (icon == null) {
LOG.warn("Failed to get icon for {}", ownerAliasId);
return createNotFoundResponse(ownerAliasId);
}
final String imageSizeStr = request.getQuery().get("imageSize");
if (imageSizeStr == null) {
LOG.warn("No image size query param");
return createNotFoundResponse(ownerAliasId);
}
final int imageSize = Integer.parseInt(imageSizeStr);
final byte[] encodedPng = encodeToPng(icon, imageSize);
final byte[] header = createImageHeader(encodedPng.length, imageSize);
final ByteBuffer buf = ByteBuffer.allocate(header.length + encodedPng.length);
buf.put(header);
buf.put(encodedPng);
final GarminHttpResponse response = new GarminHttpResponse();
response.setStatus(200);
response.getHeaders().put("Content-Type", "image/png");
response.getHeaders().put("imagetype", "ICON");
response.getHeaders().put("original-image-size", String.valueOf(encodedPng.length));
response.getHeaders().put("ownerid", ownerAliasId);
response.getHeaders().put("ownertype", "APP");
response.setBody(buf.array());
return response;
}
@NonNull
private static GarminHttpResponse createNotFoundResponse(final String ownerAliasId) {
final String requestId = UUID.randomUUID().toString();
final ErrorResponse errorResponse = new ErrorResponse(requestId, Collections.singletonList(new Error(
@@ -41,6 +99,7 @@ public class ImageServiceHandler {
)));
final GarminHttpResponse response = new GarminHttpResponse();
response.setStatus(404);
response.setBody(GSON.toJson(errorResponse).getBytes(StandardCharsets.UTF_8));
response.getHeaders().put("Content-Type", "application/json");
@@ -49,6 +108,67 @@ public class ImageServiceHandler {
return response;
}
private static byte[] encodeToPng(final Drawable icon, final int imageSize) {
final Bitmap bitmap = Bitmap.createBitmap(imageSize, imageSize, Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(bitmap);
icon.setBounds(0, 0, imageSize, imageSize);
icon.draw(canvas);
final ByteArrayOutputStream pngBaos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, pngBaos);
return pngBaos.toByteArray();
}
private static byte[] createImageHeader(final int pngLength, final int imageSize) {
final ByteBuffer buf = ByteBuffer.allocate(43).order(ByteOrder.BIG_ENDIAN);
// 0c 11 ee 5e
buf.putInt(0x0c);
buf.putInt(0x11);
buf.putInt(0xee);
buf.putInt(0x5e);
buf.putInt(pngLength + 0x23);
buf.putShort((short) imageSize);
buf.putShort((short) imageSize);
// ff ff 00 40 00 00 10 00 00 1c 00 00 1c 10
buf.put((byte) 0xff);
buf.put((byte) 0xff);
buf.put((byte) 0x00);
buf.put((byte) 0x40);
buf.put((byte) 0x00);
buf.put((byte) 0x00);
buf.put((byte) 0x10);
buf.put((byte) 0x00);
buf.put((byte) 0x00);
buf.put((byte) 0x1c);
buf.put((byte) 0x00);
buf.put((byte) 0x00);
buf.put((byte) 0x1c);
buf.put((byte) 0x10);
buf.putShort((short) imageSize);
buf.putShort((short) imageSize);
// 00 02 04 00 00 00 00 04 00
buf.put((byte) 0x00);
buf.put((byte) 0x02);
buf.put((byte) 0x04);
buf.put((byte) 0x00);
buf.put((byte) 0x00);
buf.put((byte) 0x00);
buf.put((byte) 0x00);
buf.put((byte) 0x04);
buf.put((byte) 0x00);
buf.put(BLETypeConversions.fromUint32(pngLength));
return buf.array();
}
public record ErrorResponse(String requestId, List<Error> errors) {
}