The Tor Browser: comparison mobile/android/thirdparty/com/squareup/picasso/Utils.java

--1:000000000000
+:658827890e78
+/*
+* Copyright (C) 2013 Square, Inc.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.squareup.picasso;
+import android.annotation.TargetApi;
+import android.app.ActivityManager;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.os.Looper;
+import android.os.Process;
+import android.os.StatFs;
+import android.provider.Settings;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+import java.util.concurrent.ThreadFactory;
+import static android.content.Context.ACTIVITY_SERVICE;
+import static android.content.pm.ApplicationInfo.FLAG_LARGE_HEAP;
+import static android.os.Build.VERSION.SDK_INT;
+import static android.os.Build.VERSION_CODES.HONEYCOMB;
+import static android.os.Build.VERSION_CODES.HONEYCOMB_MR1;
+import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
+import static android.provider.Settings.System.AIRPLANE_MODE_ON;
+final class Utils {
+static final String THREAD_PREFIX = "Picasso-";
+static final String THREAD_IDLE_NAME = THREAD_PREFIX + "Idle";
+static final int DEFAULT_READ_TIMEOUT = 20 * 1000; // 20s
+static final int DEFAULT_CONNECT_TIMEOUT = 15 * 1000; // 15s
+private static final String PICASSO_CACHE = "picasso-cache";
+private static final int KEY_PADDING = 50; // Determined by exact science.
+private static final int MIN_DISK_CACHE_SIZE = 5 * 1024 * 1024; // 5MB
+private static final int MAX_DISK_CACHE_SIZE = 50 * 1024 * 1024; // 50MB
+/* WebP file header
+0                   1                   2                   3
+0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|      'R'      |      'I'      |      'F'      |      'F'      |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                           File Size                           |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|      'W'      |      'E'      |      'B'      |      'P'      |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+*/
+private static final int WEBP_FILE_HEADER_SIZE = 12;
+private static final String WEBP_FILE_HEADER_RIFF = "RIFF";
+private static final String WEBP_FILE_HEADER_WEBP = "WEBP";
+private Utils() {
+// No instances.
+}
+static int getBitmapBytes(Bitmap bitmap) {
+int result;
+if (SDK_INT >= HONEYCOMB_MR1) {
+result = BitmapHoneycombMR1.getByteCount(bitmap);
+} else {
+result = bitmap.getRowBytes() * bitmap.getHeight();
+}
+if (result < 0) {
+throw new IllegalStateException("Negative size: " + bitmap);
+}
+return result;
+}
+static void checkNotMain() {
+if (Looper.getMainLooper().getThread() == Thread.currentThread()) {
+throw new IllegalStateException("Method call should not happen from the main thread.");
+}
+}
+static String createKey(Request data) {
+StringBuilder builder;
+if (data.uri != null) {
+String path = data.uri.toString();
+builder = new StringBuilder(path.length() + KEY_PADDING);
+builder.append(path);
+} else {
+builder = new StringBuilder(KEY_PADDING);
+builder.append(data.resourceId);
+}
+builder.append('\n');
+if (data.rotationDegrees != 0) {
+builder.append("rotation:").append(data.rotationDegrees);
+if (data.hasRotationPivot) {
+builder.append('@').append(data.rotationPivotX).append('x').append(data.rotationPivotY);
+}
+builder.append('\n');
+}
+if (data.targetWidth != 0) {
+builder.append("resize:").append(data.targetWidth).append('x').append(data.targetHeight);
+builder.append('\n');
+}
+if (data.centerCrop) {
+builder.append("centerCrop\n");
+} else if (data.centerInside) {
+builder.append("centerInside\n");
+}
+if (data.transformations != null) {
+//noinspection ForLoopReplaceableByForEach
+for (int i = 0, count = data.transformations.size(); i < count; i++) {
+builder.append(data.transformations.get(i).key());
+builder.append('\n');
+}
+}
+return builder.toString();
+}
+static void closeQuietly(InputStream is) {
+if (is == null) return;
+try {
+is.close();
+} catch (IOException ignored) {
+}
+}
+/** Returns {@code true} if header indicates the response body was loaded from the disk cache. */
+static boolean parseResponseSourceHeader(String header) {
+if (header == null) {
+return false;
+}
+String[] parts = header.split(" ", 2);
+if ("CACHE".equals(parts[0])) {
+return true;
+}
+if (parts.length == 1) {
+return false;
+}
+try {
+return "CONDITIONAL_CACHE".equals(parts[0]) && Integer.parseInt(parts[1]) == 304;
+} catch (NumberFormatException e) {
+return false;
+}
+}
+static Downloader createDefaultDownloader(Context context) {
+return new UrlConnectionDownloader(context);
+}
+static File createDefaultCacheDir(Context context) {
+File cache = new File(context.getApplicationContext().getCacheDir(), PICASSO_CACHE);
+if (!cache.exists()) {
+cache.mkdirs();
+}
+return cache;
+}
+static long calculateDiskCacheSize(File dir) {
+long size = MIN_DISK_CACHE_SIZE;
+try {
+StatFs statFs = new StatFs(dir.getAbsolutePath());
+long available = ((long) statFs.getBlockCount()) * statFs.getBlockSize();
+// Target 2% of the total space.
+size = available / 50;
+} catch (IllegalArgumentException ignored) {
+}
+// Bound inside min/max size for disk cache.
+return Math.max(Math.min(size, MAX_DISK_CACHE_SIZE), MIN_DISK_CACHE_SIZE);
+}
+static int calculateMemoryCacheSize(Context context) {
+ActivityManager am = (ActivityManager) context.getSystemService(ACTIVITY_SERVICE);
+boolean largeHeap = (context.getApplicationInfo().flags & FLAG_LARGE_HEAP) != 0;
+int memoryClass = am.getMemoryClass();
+if (largeHeap && SDK_INT >= HONEYCOMB) {
+memoryClass = ActivityManagerHoneycomb.getLargeMemoryClass(am);
+}
+// Target ~15% of the available heap.
+return 1024 * 1024 * memoryClass / 7;
+}
+static boolean isAirplaneModeOn(Context context) {
+ContentResolver contentResolver = context.getContentResolver();
+return Settings.System.getInt(contentResolver, AIRPLANE_MODE_ON, 0) != 0;
+}
+static boolean hasPermission(Context context, String permission) {
+return context.checkCallingOrSelfPermission(permission) == PackageManager.PERMISSION_GRANTED;
+}
+static byte[] toByteArray(InputStream input) throws IOException {
+ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+byte[] buffer = new byte[1024 * 4];
+int n = 0;
+while (-1 != (n = input.read(buffer))) {
+byteArrayOutputStream.write(buffer, 0, n);
+}
+return byteArrayOutputStream.toByteArray();
+}
+static boolean isWebPFile(InputStream stream) throws IOException {
+byte[] fileHeaderBytes = new byte[WEBP_FILE_HEADER_SIZE];
+boolean isWebPFile = false;
+if (stream.read(fileHeaderBytes, 0, WEBP_FILE_HEADER_SIZE) == WEBP_FILE_HEADER_SIZE) {
+// If a file's header starts with RIFF and end with WEBP, the file is a WebP file
+isWebPFile = WEBP_FILE_HEADER_RIFF.equals(new String(fileHeaderBytes, 0, 4, "US-ASCII"))
+&& WEBP_FILE_HEADER_WEBP.equals(new String(fileHeaderBytes, 8, 4, "US-ASCII"));
+}
+return isWebPFile;
+}
+static int getResourceId(Resources resources, Request data) throws FileNotFoundException {
+if (data.resourceId != 0 || data.uri == null) {
+return data.resourceId;
+}
+String pkg = data.uri.getAuthority();
+if (pkg == null) throw new FileNotFoundException("No package provided: " + data.uri);
+int id;
+List<String> segments = data.uri.getPathSegments();
+if (segments == null || segments.isEmpty()) {
+throw new FileNotFoundException("No path segments: " + data.uri);
+} else if (segments.size() == 1) {
+try {
+id = Integer.parseInt(segments.get(0));
+} catch (NumberFormatException e) {
+throw new FileNotFoundException("Last path segment is not a resource ID: " + data.uri);
+}
+} else if (segments.size() == 2) {
+String type = segments.get(0);
+String name = segments.get(1);
+id = resources.getIdentifier(name, type, pkg);
+} else {
+throw new FileNotFoundException("More than two path segments: " + data.uri);
+}
+return id;
+}
+static Resources getResources(Context context, Request data) throws FileNotFoundException {
+if (data.resourceId != 0 || data.uri == null) {
+return context.getResources();
+}
+String pkg = data.uri.getAuthority();
+if (pkg == null) throw new FileNotFoundException("No package provided: " + data.uri);
+try {
+PackageManager pm = context.getPackageManager();
+return pm.getResourcesForApplication(pkg);
+} catch (PackageManager.NameNotFoundException e) {
+throw new FileNotFoundException("Unable to obtain resources for package: " + data.uri);
+}
+}
+@TargetApi(HONEYCOMB)
+private static class ActivityManagerHoneycomb {
+static int getLargeMemoryClass(ActivityManager activityManager) {
+return activityManager.getLargeMemoryClass();
+}
+}
+static class PicassoThreadFactory implements ThreadFactory {
+@SuppressWarnings("NullableProblems")
+public Thread newThread(Runnable r) {
+return new PicassoThread(r);
+}
+}
+private static class PicassoThread extends Thread {
+public PicassoThread(Runnable r) {
+super(r);
+}
+@Override public void run() {
+Process.setThreadPriority(THREAD_PRIORITY_BACKGROUND);
+super.run();
+}
+}
+@TargetApi(HONEYCOMB_MR1)
+private static class BitmapHoneycombMR1 {
+static int getByteCount(Bitmap bitmap) {
+return bitmap.getByteCount();
+}
+}
+}

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comparison: mobile/android/thirdparty/com/squareup/picasso/Utils.java

mobile/android/thirdparty/com/squareup/picasso/Utils.java