mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-11-04 09:17:29 +01:00
Garmin: Implement etag for agps requests
This commit is contained in:
José Rebelo
Daniele Gobbetti
parent
ea1c1c808c
commit
88a9c81dcc
@ -11,14 +11,18 @@ import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import java.util.Map;
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import java.util.Locale;
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import java.util.Objects;
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import java.util.concurrent.Callable;
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import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventUpdatePreferences;
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import nodomain.freeyourgadget.gadgetbridge.devices.garmin.GarminPreferences;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.GarminSupport;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.http.GarminHttpRequest;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.http.GarminHttpResponse;
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import nodomain.freeyourgadget.gadgetbridge.util.CheckSums;
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import nodomain.freeyourgadget.gadgetbridge.util.FileUtils;
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import nodomain.freeyourgadget.gadgetbridge.util.GB;
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import nodomain.freeyourgadget.gadgetbridge.util.Prefs;
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public class AgpsHandler {
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@ -30,13 +34,13 @@ public class AgpsHandler {
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this.deviceSupport = deviceSupport;
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}
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public byte[] handleAgpsRequest(final String url, final String path, final Map<String, String> query) {
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saveKnownUrl(url);
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public GarminHttpResponse handleAgpsRequest(final GarminHttpRequest request) {
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saveKnownUrl(request.getUrl());
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try {
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final DocumentFile agpsFile = deviceSupport.getAgpsFile(url);
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final DocumentFile agpsFile = deviceSupport.getAgpsFile(request.getUrl());
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if (agpsFile == null) {
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LOG.warn("File with AGPS data for {} does not exist.", url);
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LOG.warn("File with AGPS data for {} does not exist.", request.getUrl());
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return null;
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}
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try (InputStream agpsIn = deviceSupport.getContext().getContentResolver().openInputStream(agpsFile.getUri())) {
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@ -45,18 +49,35 @@ public class AgpsHandler {
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return null;
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}
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// Run some sanity checks on known agps file formats
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final GarminHttpResponse response = new GarminHttpResponse();
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final byte[] rawBytes = FileUtils.readAll(agpsIn, 1024 * 1024); // 1MB, they're usually ~60KB
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final String fileHash = GB.hexdump(CheckSums.md5(rawBytes)).toLowerCase(Locale.ROOT);
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final String etag = "\"" + fileHash + "\"";
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response.getHeaders().put("etag", etag);
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if (request.getHeaders().containsKey("if-none-match")) {
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// Check checksum
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final String ifNoneMatch = request.getHeaders().get("if-none-match");
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LOG.debug("agps request hash = {}, file hash = {}", ifNoneMatch, etag);
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if (etag.equals(ifNoneMatch)) {
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response.setStatus(304);
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return response;
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}
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}
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// Run some sanity checks on known agps file formats
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final GarminAgpsFile garminAgpsFile = new GarminAgpsFile(rawBytes);
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if (query.containsKey(QUERY_CONSTELLATIONS)) {
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final String[] requestedConstellations = Objects.requireNonNull(query.get(QUERY_CONSTELLATIONS)).split(",");
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if (request.getQuery().containsKey(QUERY_CONSTELLATIONS)) {
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final String[] requestedConstellations = Objects.requireNonNull(request.getQuery().get(QUERY_CONSTELLATIONS)).split(",");
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if (!garminAgpsFile.isValidTar(requestedConstellations)) {
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reportError(url);
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reportError(request.getUrl());
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return null;
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}
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} else if (path.contains(("/rxnetworks/"))) {
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} else if (request.getPath().contains(("/rxnetworks/"))) {
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if (!garminAgpsFile.isValidRxNetworks()) {
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reportError(url);
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reportError(request.getUrl());
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return null;
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}
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} else {
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@ -64,12 +85,23 @@ public class AgpsHandler {
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return null;
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}
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LOG.info("Sending new AGPS data to the device from {}", agpsFile.getUri());
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return rawBytes;
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LOG.info("Sending new AGPS data (length: {}) to the device from {}", rawBytes.length, agpsFile.getUri());
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if (request.getHeaders().containsKey("accept")) {
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response.getHeaders().put("Content-Type", request.getHeaders().get("accept"));
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} else {
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response.getHeaders().put("Content-Type", "application/octet-stream");
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}
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response.setStatus(200);
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response.setBody(rawBytes);
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response.setOnDataSuccessfullySentListener(getOnDataSuccessfullySentListener(request.getUrl()));
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return response;
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}
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} catch (final IOException e) {
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LOG.error("Unable to obtain AGPS data", e);
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reportError(url);
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reportError(request.getUrl());
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return null;
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}
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}
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@ -0,0 +1,64 @@
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.http;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import nodomain.freeyourgadget.gadgetbridge.proto.garmin.GdiHttpService;
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import nodomain.freeyourgadget.gadgetbridge.util.HttpUtils;
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public class GarminHttpRequest {
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private final GdiHttpService.HttpService.RawRequest rawRequest;
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private final String url;
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private final String path;
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private final Map<String, String> query;
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private final Map<String, String> headers;
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public GarminHttpRequest(final GdiHttpService.HttpService.RawRequest rawRequest) {
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this.rawRequest = rawRequest;
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final URL netUrl;
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try {
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netUrl = new URL(rawRequest.getUrl());
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} catch (final MalformedURLException e) {
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throw new IllegalArgumentException("Failed to parse url", e);
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}
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this.url = rawRequest.getUrl();
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this.path = netUrl.getPath();
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this.query = HttpUtils.urlQueryParameters(netUrl);
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this.headers = headersToMap(rawRequest.getHeaderList());
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}
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public GdiHttpService.HttpService.RawRequest getRawRequest() {
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return rawRequest;
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}
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public String getUrl() {
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return url;
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}
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public String getPath() {
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return path;
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}
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public Map<String, String> getQuery() {
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return query;
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}
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public Map<String, String> getHeaders() {
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return headers;
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}
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private static Map<String, String> headersToMap(final List<GdiHttpService.HttpService.Header> headers) {
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final Map<String, String> ret = new HashMap<>();
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for (final GdiHttpService.HttpService.Header header : headers) {
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ret.put(header.getKey().toLowerCase(Locale.ROOT), header.getValue());
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}
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return ret;
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}
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}
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@ -0,0 +1,41 @@
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.http;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import java.util.concurrent.Callable;
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public class GarminHttpResponse {
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private int status = 200;
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private final Map<String, String> headers = new LinkedHashMap<>();
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private byte[] body = new byte[0];
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private Callable<Void> onDataSuccessfullySentListener;
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public int getStatus() {
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return status;
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}
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public void setStatus(final int status) {
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this.status = status;
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}
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public Map<String, String> getHeaders() {
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return headers;
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}
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public byte[] getBody() {
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return body;
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}
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public void setBody(final byte[] body) {
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this.body = body;
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}
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public Callable<Void> getOnDataSuccessfullySentListener() {
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return onDataSuccessfullySentListener;
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}
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public void setOnDataSuccessfullySentListener(final Callable<Void> onDataSuccessfullySentListener) {
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this.onDataSuccessfullySentListener = onDataSuccessfullySentListener;
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}
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}
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@ -1,36 +1,23 @@
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.http;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import com.google.protobuf.ByteString;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.ByteArrayOutputStream;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.concurrent.Callable;
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import java.util.zip.GZIPOutputStream;
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import nodomain.freeyourgadget.gadgetbridge.proto.garmin.GdiHttpService;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.GarminSupport;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.agps.AgpsHandler;
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import nodomain.freeyourgadget.gadgetbridge.util.HttpUtils;
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public class HttpHandler {
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private static final Logger LOG = LoggerFactory.getLogger(HttpHandler.class);
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private static final Gson GSON = new GsonBuilder()
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//.serializeNulls()
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.create();
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private final AgpsHandler agpsHandler;
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public HttpHandler(GarminSupport deviceSupport) {
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@ -54,74 +41,67 @@ public class HttpHandler {
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}
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public GdiHttpService.HttpService.RawResponse handleRawRequest(final GdiHttpService.HttpService.RawRequest rawRequest) {
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// TODO Return status code 304 (Not Modified) when we don't have newer data and "if-none-match" is set.
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final String urlString = rawRequest.getUrl();
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LOG.debug("Got rawRequest: {} - {}", rawRequest.getMethod(), urlString);
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LOG.debug("Got rawRequest: {} - {}", rawRequest.getMethod(), rawRequest.getUrl());
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final URL url;
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try {
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url = new URL(urlString);
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} catch (final MalformedURLException e) {
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LOG.error("Failed to parse url", e);
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return null;
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}
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final GarminHttpRequest request = new GarminHttpRequest(rawRequest);
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final String path = url.getPath();
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final Map<String, String> query = HttpUtils.urlQueryParameters(url);
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final Map<String, String> requestHeaders = headersToMap(rawRequest.getHeaderList());
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if (path.startsWith("/weather/")) {
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LOG.info("Got weather request for {}", path);
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final Object weatherData = WeatherHandler.handleWeatherRequest(path, query);
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if (weatherData == null) {
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return null;
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}
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final String json = GSON.toJson(weatherData);
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LOG.debug("Weather response: {}", json);
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return createRawResponse(rawRequest, json.getBytes(StandardCharsets.UTF_8), "application/json", null);
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} else if (path.startsWith("/ephemeris/")) {
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LOG.info("Got AGPS request for {}", path);
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final byte[] agpsData = agpsHandler.handleAgpsRequest(urlString, path, query);
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if (agpsData == null) {
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return null;
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}
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LOG.debug("Successfully obtained AGPS data (length: {})", agpsData.length);
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final String contentType = requestHeaders.containsKey("accept") ? requestHeaders.get("accept") : "application/octet-stream";
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return createRawResponse(rawRequest, agpsData, contentType, agpsHandler.getOnDataSuccessfullySentListener(urlString));
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final GarminHttpResponse response;
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if (request.getPath().startsWith("/weather/")) {
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LOG.info("Got weather request for {}", request.getPath());
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response = WeatherHandler.handleWeatherRequest(request);
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} else if (request.getPath().startsWith("/ephemeris/")) {
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LOG.info("Got AGPS request for {}", request.getPath());
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response = agpsHandler.handleAgpsRequest(request);
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} else {
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LOG.warn("Unhandled path {}", urlString);
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LOG.warn("Unhandled path {}", request.getPath());
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response = null;
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}
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if (response == null) {
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return null;
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}
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LOG.debug("Http response status={}", response.getStatus());
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return createRawResponse(request, response);
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}
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private static GdiHttpService.HttpService.RawResponse createRawResponse(
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final GdiHttpService.HttpService.RawRequest rawRequest,
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final byte[] data,
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final String contentType,
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final Callable<Void> onDataSuccessfullySentListener
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final GarminHttpRequest request,
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final GarminHttpResponse response
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) {
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if (rawRequest.hasUseDataXfer() && rawRequest.getUseDataXfer()) {
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final List<GdiHttpService.HttpService.Header> responseHeaders = new ArrayList<>();
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for (final Map.Entry<String, String> h : response.getHeaders().entrySet()) {
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responseHeaders.add(
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GdiHttpService.HttpService.Header.newBuilder()
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.setKey(h.getKey())
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.setValue(h.getValue())
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.build()
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);
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}
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if (response.getStatus() == 200 && request.getRawRequest().hasUseDataXfer() && request.getRawRequest().getUseDataXfer()) {
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LOG.debug("Data will be returned using data_xfer");
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int id = DataTransferHandler.registerData(data);
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if (onDataSuccessfullySentListener != null) {
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DataTransferHandler.addOnDataSuccessfullySentListener(id, onDataSuccessfullySentListener);
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int id = DataTransferHandler.registerData(response.getBody());
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if (response.getOnDataSuccessfullySentListener() != null) {
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DataTransferHandler.addOnDataSuccessfullySentListener(id, response.getOnDataSuccessfullySentListener());
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}
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return GdiHttpService.HttpService.RawResponse.newBuilder()
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.setStatus(GdiHttpService.HttpService.Status.OK)
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.setHttpStatus(200)
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.setHttpStatus(response.getStatus())
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.addAllHeader(responseHeaders)
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.setXferData(
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GdiHttpService.HttpService.DataTransferItem.newBuilder()
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.setId(id)
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.setSize(data.length)
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.setSize(response.getBody().length)
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.build()
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)
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.build();
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}
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final Map<String, String> requestHeaders = headersToMap(rawRequest.getHeaderList());
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final List<GdiHttpService.HttpService.Header> responseHeaders = new ArrayList<>();
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final byte[] responseBody;
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if ("gzip".equals(requestHeaders.get("accept-encoding"))) {
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if ("gzip".equals(request.getHeaders().get("accept-encoding"))) {
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LOG.debug("Compressing response");
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responseHeaders.add(
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GdiHttpService.HttpService.Header.newBuilder()
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.setKey("Content-Encoding")
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@ -131,7 +111,7 @@ public class HttpHandler {
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final ByteArrayOutputStream baos = new ByteArrayOutputStream();
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try (GZIPOutputStream gzos = new GZIPOutputStream(baos)) {
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gzos.write(data);
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gzos.write(response.getBody());
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gzos.finish();
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gzos.flush();
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responseBody = baos.toByteArray();
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@ -140,29 +120,14 @@ public class HttpHandler {
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return null;
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}
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} else {
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responseBody = data;
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responseBody = response.getBody();
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}
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responseHeaders.add(
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GdiHttpService.HttpService.Header.newBuilder()
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.setKey("Content-Type")
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.setValue(contentType)
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.build()
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);
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return GdiHttpService.HttpService.RawResponse.newBuilder()
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.setStatus(GdiHttpService.HttpService.Status.OK)
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.setHttpStatus(200)
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.setHttpStatus(response.getStatus())
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.setBody(ByteString.copyFrom(responseBody))
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.addAllHeader(responseHeaders)
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.build();
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}
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private static Map<String, String> headersToMap(final List<GdiHttpService.HttpService.Header> headers) {
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final Map<String, String> ret = new HashMap<>();
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for (final GdiHttpService.HttpService.Header header : headers) {
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ret.put(header.getKey().toLowerCase(Locale.ROOT), header.getValue());
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}
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return ret;
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}
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}
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@ -2,12 +2,16 @@ package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.http;
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import android.location.Location;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import net.e175.klaus.solarpositioning.DeltaT;
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import net.e175.klaus.solarpositioning.SPA;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.Date;
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@ -23,8 +27,15 @@ import nodomain.freeyourgadget.gadgetbridge.service.devices.pebble.webview.Curre
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public class WeatherHandler {
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private static final Logger LOG = LoggerFactory.getLogger(WeatherHandler.class);
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private static final Gson GSON = new GsonBuilder()
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//.serializeNulls()
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.create();
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// These get requested on connection at most every 5 minutes
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public static Object handleWeatherRequest(final String path, final Map<String, String> query) {
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public static GarminHttpResponse handleWeatherRequest(final GarminHttpRequest request) {
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final String path = request.getPath();
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final Map<String, String> query = request.getQuery();
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final WeatherSpec weatherSpec = Weather.getInstance().getWeatherSpec();
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if (weatherSpec == null) {
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@ -32,6 +43,7 @@ public class WeatherHandler {
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return null;
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}
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final Object weatherData;
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switch (path) {
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case "/weather/v2/forecast/day": {
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final int lat = getQueryNum(query, "lat", 0);
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@ -46,7 +58,8 @@ public class WeatherHandler {
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||||
date.add(Calendar.DAY_OF_MONTH, 1);
|
||||
ret.add(new WeatherForecastDay(date, weatherSpec.forecasts.get(i)));
|
||||
}
|
||||
return ret;
|
||||
weatherData = ret;
|
||||
break;
|
||||
}
|
||||
case "/weather/v2/forecast/hour": {
|
||||
final int lat = getQueryNum(query, "lat", 0);
|
||||
@ -60,7 +73,8 @@ public class WeatherHandler {
|
||||
for (int i = 0; i < Math.min(duration, weatherSpec.hourly.size()); i++) {
|
||||
ret.add(new WeatherForecastHour(weatherSpec.hourly.get(i)));
|
||||
}
|
||||
return ret;
|
||||
weatherData = ret;
|
||||
break;
|
||||
}
|
||||
case "/weather/v2/current": {
|
||||
final int lat = getQueryNum(query, "lat", 0);
|
||||
@ -68,13 +82,24 @@ public class WeatherHandler {
|
||||
final String tempUnit = getQueryString(query, "tempUnit", "CELSIUS");
|
||||
final String speedUnit = getQueryString(query, "speedUnit", "METERS_PER_SECOND");
|
||||
final String provider = getQueryString(query, "provider", "dci");
|
||||
return new WeatherForecastCurrent(weatherSpec);
|
||||
weatherData = new WeatherForecastCurrent(weatherSpec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
default:
|
||||
LOG.warn("Unknown weather path {}", path);
|
||||
final GarminHttpResponse response = new GarminHttpResponse();
|
||||
response.setStatus(404);
|
||||
return response;
|
||||
}
|
||||
|
||||
return null;
|
||||
final String json = GSON.toJson(weatherData);
|
||||
LOG.debug("Weather response: {}", json);
|
||||
|
||||
final GarminHttpResponse response = new GarminHttpResponse();
|
||||
response.setStatus(200);
|
||||
response.setBody(json.getBytes(StandardCharsets.UTF_8));
|
||||
response.getHeaders().put("Content-Type", "application/json");
|
||||
return response;
|
||||
}
|
||||
|
||||
private static int getQueryNum(final Map<String, String> query, final String key, final int defaultValue) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user