1 files changed, 200 insertions, 0 deletions
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/http/HTTPRequest.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/http/HTTPRequest.java
new file mode 100644
index 0000000000..91a235616a
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/http/HTTPRequest.java
@@ -0,0 +1,200 @@
+package com.mapbox.mapboxsdk.http;
+
+
+import android.content.Context;
+import android.content.pm.PackageInfo;
+import android.os.Build;
+import android.text.TextUtils;
+
+import com.mapbox.mapboxsdk.BuildConfig;
+import com.mapbox.mapboxsdk.Mapbox;
+import com.mapbox.mapboxsdk.constants.MapboxConstants;
+
+import java.io.IOException;
+import java.io.InterruptedIOException;
+import java.net.NoRouteToHostException;
+import java.net.ProtocolException;
+import java.net.SocketException;
+import java.net.UnknownHostException;
+import java.util.concurrent.locks.ReentrantLock;
+
+import javax.net.ssl.SSLException;
+
+import okhttp3.Call;
+import okhttp3.Callback;
+import okhttp3.HttpUrl;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import okhttp3.internal.Util;
+import timber.log.Timber;
+
+class HTTPRequest implements Callback {
+
+  private static OkHttpClient mClient = new OkHttpClient();
+  private String USER_AGENT_STRING = null;
+
+  private static final int CONNECTION_ERROR = 0;
+  private static final int TEMPORARY_ERROR = 1;
+  private static final int PERMANENT_ERROR = 2;
+
+  // Reentrancy is not needed, but "Lock" is an
+  // abstract class.
+  private ReentrantLock mLock = new ReentrantLock();
+
+  private long mNativePtr = 0;
+
+  private Call mCall;
+  private Request mRequest;
+
+  private native void nativeOnFailure(int type, String message);
+
+  private native void nativeOnResponse(int code, String etag, String modified, String cacheControl, String expires,
+                                       String retryAfter, String xRateLimitReset, byte[] body);
+
+  private HTTPRequest(long nativePtr, String resourceUrl, String etag, String modified) {
+    mNativePtr = nativePtr;
+
+    try {
+      // Don't try a request if we aren't connected
+      if (!Mapbox.isConnected()) {
+        throw new NoRouteToHostException("No Internet connection available.");
+      }
+
+      HttpUrl httpUrl = HttpUrl.parse(resourceUrl);
+      final String host = httpUrl.host().toLowerCase(MapboxConstants.MAPBOX_LOCALE);
+      if (host.equals("mapbox.com") || host.endsWith(".mapbox.com") || host.equals("mapbox.cn")
+        || host.endsWith(".mapbox.cn")) {
+        if (httpUrl.querySize() == 0) {
+          resourceUrl = resourceUrl + "?";
+        } else {
+          resourceUrl = resourceUrl + "&";
+        }
+        resourceUrl = resourceUrl + "events=true";
+      }
+
+      Request.Builder builder = new Request.Builder()
+        .url(resourceUrl)
+        .tag(resourceUrl.toLowerCase(MapboxConstants.MAPBOX_LOCALE))
+        .addHeader("User-Agent", getUserAgent());
+      if (etag.length() > 0) {
+        builder = builder.addHeader("If-None-Match", etag);
+      } else if (modified.length() > 0) {
+        builder = builder.addHeader("If-Modified-Since", modified);
+      }
+      mRequest = builder.build();
+      mCall = mClient.newCall(mRequest);
+      mCall.enqueue(this);
+    } catch (Exception exception) {
+      onFailure(exception);
+    }
+  }
+
+  public void cancel() {
+    // mCall can be null if the constructor gets aborted (e.g, under a NoRouteToHostException).
+    if (mCall != null) {
+      mCall.cancel();
+    }
+
+    // TODO: We need a lock here because we can try
+    // to cancel at the same time the request is getting
+    // answered on the OkHTTP thread. We could get rid of
+    // this lock by using Runnable when we move Android
+    // implementation of mbgl::RunLoop to Looper.
+    mLock.lock();
+    mNativePtr = 0;
+    mLock.unlock();
+  }
+
+  @Override
+  public void onResponse(Call call, Response response) throws IOException {
+    if (response.isSuccessful()) {
+      Timber.v("[HTTP] Request was successful (code = %s).", response.code());
+    } else {
+      // We don't want to call this unsuccessful because a 304 isn't really an error
+      String message = !TextUtils.isEmpty(response.message()) ? response.message() : "No additional information";
+      Timber.d("[HTTP] Request with response code = %s: %s", response.code(), message);
+    }
+
+    byte[] body;
+    try {
+      body = response.body().bytes();
+    } catch (IOException ioException) {
+      onFailure(ioException);
+      // throw ioException;
+      return;
+    } finally {
+      response.body().close();
+    }
+
+    mLock.lock();
+    if (mNativePtr != 0) {
+      nativeOnResponse(response.code(),
+        response.header("ETag"),
+        response.header("Last-Modified"),
+        response.header("Cache-Control"),
+        response.header("Expires"),
+        response.header("Retry-After"),
+        response.header("x-rate-limit-reset"),
+        body);
+    }
+    mLock.unlock();
+  }
+
+  @Override
+  public void onFailure(Call call, IOException e) {
+    onFailure(e);
+  }
+
+  private void onFailure(Exception e) {
+    int type = PERMANENT_ERROR;
+    if ((e instanceof NoRouteToHostException) || (e instanceof UnknownHostException) || (e instanceof SocketException)
+      || (e instanceof ProtocolException) || (e instanceof SSLException)) {
+      type = CONNECTION_ERROR;
+    } else if ((e instanceof InterruptedIOException)) {
+      type = TEMPORARY_ERROR;
+    }
+
+    String errorMessage = e.getMessage() != null ? e.getMessage() : "Error processing the request";
+
+    if (type == TEMPORARY_ERROR) {
+      Timber.d("Request failed due to a temporary error: %s", errorMessage);
+    } else if (type == CONNECTION_ERROR) {
+      Timber.i("Request failed due to a connection error: %s", errorMessage);
+    } else {
+      // PERMANENT_ERROR
+      Timber.w("Request failed due to a permanent error: %s", errorMessage);
+    }
+
+    mLock.lock();
+    if (mNativePtr != 0) {
+      nativeOnFailure(type, errorMessage);
+    }
+    mLock.unlock();
+  }
+
+  private String getUserAgent() {
+    if (USER_AGENT_STRING == null) {
+      return USER_AGENT_STRING = Util.toHumanReadableAscii(
+        String.format("%s %s (%s) Android/%s (%s)",
+          getApplicationIdentifier(),
+          BuildConfig.MAPBOX_VERSION_STRING,
+          BuildConfig.GIT_REVISION_SHORT,
+          Build.VERSION.SDK_INT,
+          Build.CPU_ABI)
+      );
+    } else {
+      return USER_AGENT_STRING;
+    }
+  }
+
+  private String getApplicationIdentifier() {
+    try {
+      Context context = Mapbox.getApplicationContext();
+      PackageInfo packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
+      return String.format("%s/%s (%s)", context.getPackageName(), packageInfo.versionName, packageInfo.versionCode);
+    } catch (Exception exception) {
+      return "";
+    }
+  }
+}