kunfei
3 years ago
committed by
GitHub
commit
1df2aaf187
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@ -0,0 +1,355 @@ |
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package io.legado.app.help.http.cronet; |
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import android.annotation.SuppressLint; |
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import android.content.Context; |
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import android.os.Build; |
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import android.util.Log; |
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import org.chromium.net.CronetEngine; |
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import org.chromium.net.impl.ImplVersion; |
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import java.io.ByteArrayOutputStream; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import java.math.BigInteger; |
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import java.net.HttpURLConnection; |
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import java.net.URL; |
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import java.security.MessageDigest; |
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import java.util.Objects; |
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import java.util.concurrent.Executor; |
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import java.util.concurrent.Executors; |
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public class CronetLoader extends CronetEngine.Builder.LibraryLoader { |
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//https://storage.googleapis.com/chromium-cronet/android/92.0.4515.127/Release/cronet/libs/arm64-v8a/libcronet.92.0.4515.127.so
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//https://cdn.jsdelivr.net/gh/ag2s20150909/cronet-repo@92.0.4515.127/cronet/92.0.4515.127/arm64-v8a/libcronet.92.0.4515.127.so.js
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private final String soName = "libcronet." + ImplVersion.getCronetVersion() + ".so"; |
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private final String soUrl = "https://storage.googleapis.com/chromium-cronet/android/" + ImplVersion.getCronetVersion() + "/Release/cronet/libs/" + getCpuAbi() + "/" + soName; |
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private final String md5Url = "https://cdn.jsdelivr.net/gh/ag2s20150909/cronet-repo@" + ImplVersion.getCronetVersion() + "/cronet/" + ImplVersion.getCronetVersion() + "/" + getCpuAbi() + "/" + soName + ".js"; |
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private final File soFile; |
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private final File downloadFile; |
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private static final String TAG = "CronetLoader"; |
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private static CronetLoader instance; |
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public static CronetLoader getInstance(Context context) { |
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if (mContext == null) { |
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mContext = context; |
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} |
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if (instance == null) { |
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synchronized (CronetLoader.class) { |
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if (instance == null) { |
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instance = new CronetLoader(mContext); |
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} |
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} |
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} |
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return instance; |
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} |
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private static Context mContext; |
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CronetLoader(Context context) { |
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mContext = context.getApplicationContext(); |
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File dir = mContext.getDir("lib", Context.MODE_PRIVATE); |
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soFile = new File(dir + "/" + getCpuAbi(), soName); |
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downloadFile = new File(mContext.getCacheDir() + "/so_download", soName); |
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} |
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public boolean install() { |
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return soFile.exists(); |
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} |
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public void preDownload() { |
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new Thread(() -> { |
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String md5 = getUrlMd5(md5Url); |
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if (soFile.exists() && Objects.equals(md5, getFileMD5(soFile))) { |
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Log.e(TAG, "So 库已存在"); |
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} else { |
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download(soUrl, md5, downloadFile, soFile); |
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} |
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Log.e(TAG, soName); |
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}).start(); |
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} |
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@SuppressLint("UnsafeDynamicallyLoadedCode") |
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@Override |
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public void loadLibrary(String libName) { |
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Log.e(TAG, "libName:" + libName); |
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long start = System.currentTimeMillis(); |
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try { |
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//非cronet的so调用系统方法加载
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if (!libName.contains("cronet")) { |
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System.loadLibrary(libName); |
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return; |
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} |
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//以下逻辑为cronet加载，优先加载本地，否则从远程加载
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//首先调用系统行为进行加载
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System.loadLibrary(libName); |
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Log.e(TAG, "load from system"); |
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} catch (Throwable e) { |
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//如果找不到，则从远程下载
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//删除历史文件
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deleteHistoryFile(Objects.requireNonNull(soFile.getParentFile()), soFile); |
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Log.e(TAG, "soUrl:" + soUrl); |
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String md5 = getUrlMd5(md5Url); |
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Log.e(TAG, "soMD5:" + md5); |
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Log.e(TAG, "soName+:" + soName); |
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Log.e(TAG, "destSuccessFile:" + soFile); |
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Log.e(TAG, "tempFile:" + downloadFile); |
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if (md5 == null || md5.length() != 32 || soUrl.length() == 0) { |
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//如果md5或下载的url为空，则调用系统行为进行加载
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System.loadLibrary(libName); |
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return; |
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} |
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if (!soFile.exists() || !soFile.isFile()) { |
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//noinspection ResultOfMethodCallIgnored
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soFile.delete(); |
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download(soUrl, md5, downloadFile, soFile); |
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//如果文件不存在或不是文件，则调用系统行为进行加载
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System.loadLibrary(libName); |
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return; |
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} |
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if (soFile.exists()) { |
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//如果文件存在，则校验md5值
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String fileMD5 = getFileMD5(soFile); |
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if (fileMD5 != null && fileMD5.equalsIgnoreCase(md5)) { |
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//md5值一样，则加载
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System.load(soFile.getAbsolutePath()); |
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Log.e(TAG, "load from:" + soFile); |
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return; |
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} |
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//md5不一样则删除
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//noinspection ResultOfMethodCallIgnored
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soFile.delete(); |
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} |
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//不存在则下载
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download(soUrl, md5, downloadFile, soFile); |
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//使用系统加载方法
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System.loadLibrary(libName); |
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} finally { |
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Log.e(TAG, "time:" + (System.currentTimeMillis() - start)); |
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} |
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} |
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public static String getCpuAbi() { |
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//貌似只有这个过时了的API能获取当前APP使用的ABI
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return Build.CPU_ABI; |
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} |
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private static String getUrlMd5(String url) { |
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InputStream inputStream; |
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OutputStream outputStream; |
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try { |
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outputStream = new ByteArrayOutputStream(); |
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HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection(); |
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inputStream = connection.getInputStream(); |
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byte[] buffer = new byte[32768]; |
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int read; |
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while ((read = inputStream.read(buffer)) != -1) { |
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outputStream.write(buffer, 0, read); |
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outputStream.flush(); |
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} |
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return outputStream.toString(); |
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} catch (IOException e) { |
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return null; |
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} |
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} |
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/** |
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* 删除历史文件 |
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*/ |
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private static void deleteHistoryFile(File dir, File currentFile) { |
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File[] files = dir.listFiles(); |
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if (files != null && files.length > 0) { |
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for (File f : files) { |
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if (f.exists() && (currentFile == null || !f.getAbsolutePath().equals(currentFile.getAbsolutePath()))) { |
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boolean delete = f.delete(); |
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Log.e(TAG, "delete file: " + f + " result: " + delete); |
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if (!delete) { |
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f.deleteOnExit(); |
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} |
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} |
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} |
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} |
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} |
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/** |
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* 下载文件 |
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*/ |
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private static boolean downloadFileIfNotExist(String url, File destFile) { |
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InputStream inputStream = null; |
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OutputStream outputStream = null; |
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try { |
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HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection(); |
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inputStream = connection.getInputStream(); |
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if (destFile.exists()) { |
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return true; |
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} |
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destFile.getParentFile().mkdirs(); |
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destFile.createNewFile(); |
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outputStream = new FileOutputStream(destFile); |
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byte[] buffer = new byte[32768]; |
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int read; |
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while ((read = inputStream.read(buffer)) != -1) { |
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outputStream.write(buffer, 0, read); |
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outputStream.flush(); |
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} |
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return true; |
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} catch (Throwable e) { |
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e.printStackTrace(); |
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if (destFile.exists() && !destFile.delete()) { |
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destFile.deleteOnExit(); |
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} |
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} finally { |
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if (inputStream != null) { |
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try { |
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inputStream.close(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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if (outputStream != null) { |
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try { |
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outputStream.close(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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return false; |
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} |
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static boolean download = false; |
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static Executor executor = Executors.newSingleThreadExecutor(); |
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/** |
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* 下载并拷贝文件 |
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*/ |
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private static synchronized void download(final String url, final String md5, final File downloadTempFile, final File destSuccessFile) { |
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if (download) { |
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return; |
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} |
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download = true; |
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executor.execute(() -> { |
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boolean result = downloadFileIfNotExist(url, downloadTempFile); |
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Log.e(TAG, "download result:" + result); |
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//文件md5再次校验
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String fileMD5 = getFileMD5(downloadTempFile); |
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if (md5 != null && !md5.equalsIgnoreCase(fileMD5)) { |
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boolean delete = downloadTempFile.delete(); |
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if (!delete) { |
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downloadTempFile.deleteOnExit(); |
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} |
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download = false; |
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return; |
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} |
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Log.e(TAG, "download success, copy to " + destSuccessFile); |
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//下载成功拷贝文件
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copyFile(downloadTempFile, destSuccessFile); |
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File parentFile = downloadTempFile.getParentFile(); |
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deleteHistoryFile(parentFile, null); |
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}); |
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} |
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/** |
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* 拷贝文件 |
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*/ |
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private static boolean copyFile(File source, File dest) { |
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if (source == null || !source.exists() || !source.isFile() || dest == null) { |
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return false; |
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} |
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if (source.getAbsolutePath().equals(dest.getAbsolutePath())) { |
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return true; |
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} |
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FileInputStream is = null; |
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FileOutputStream os = null; |
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File parent = dest.getParentFile(); |
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if (parent != null && (!parent.exists())) { |
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boolean mkdirs = parent.mkdirs(); |
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if (!mkdirs) { |
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mkdirs = parent.mkdirs(); |
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} |
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} |
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try { |
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is = new FileInputStream(source); |
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os = new FileOutputStream(dest, false); |
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byte[] buffer = new byte[1024 * 512]; |
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int length; |
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while ((length = is.read(buffer)) > 0) { |
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os.write(buffer, 0, length); |
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} |
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return true; |
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} catch (Exception e) { |
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e.printStackTrace(); |
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} finally { |
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if (is != null) { |
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try { |
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is.close(); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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} |
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} |
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if (os != null) { |
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try { |
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os.close(); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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return false; |
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} |
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/** |
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* 获得文件md5 |
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*/ |
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private static String getFileMD5(File file) { |
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FileInputStream fileInputStream = null; |
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try { |
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fileInputStream = new FileInputStream(file); |
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MessageDigest md5 = MessageDigest.getInstance("MD5"); |
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byte[] buffer = new byte[1024]; |
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int numRead = 0; |
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while ((numRead = fileInputStream.read(buffer)) > 0) { |
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md5.update(buffer, 0, numRead); |
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} |
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return String.format("%032x", new BigInteger(1, md5.digest())).toLowerCase(); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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} catch (OutOfMemoryError e) { |
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e.printStackTrace(); |
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} finally { |
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if (fileInputStream != null) { |
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try { |
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fileInputStream.close(); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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return null; |
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} |
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} |
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