210 lines
7.0 KiB
Java
210 lines
7.0 KiB
Java
/*
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This file is part of ServerProxy.
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SocketProxy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Subsonic is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Subsonic. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2014 (C) Scott Jackson
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*/
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package net.nullsum.audinaut.util;
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import android.util.Log;
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import java.io.BufferedOutputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.net.Socket;
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import java.net.SocketException;
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public class FileProxy extends ServerProxy {
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private static final String TAG = FileProxy.class.getSimpleName();
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protected ProxyTask getTask(Socket client) {
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return new StreamFileTask(client);
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}
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protected class StreamFileTask extends ProxyTask {
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File file;
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public StreamFileTask(Socket client) {
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super(client);
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}
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@Override
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public boolean processRequest() {
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if (!super.processRequest()) {
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return false;
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}
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Log.i(TAG, "Processing request for file " + path);
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file = getFile(path);
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if (!file.exists()) {
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Log.e(TAG, "File " + path + " does not exist");
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return false;
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}
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// Make sure to not try to read past where the file is downloaded
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return !(cbSkip != 0 && cbSkip >= file.length());
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}
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File getFile(String path) {
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return new File(path);
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}
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Long getContentLength() {
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return file.length();
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}
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long getFileSize() {
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return file.length();
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}
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@Override
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public void run() {
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Long contentLength = getContentLength();
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// Create HTTP header
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String headers;
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if (cbSkip == 0) {
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headers = "HTTP/1.0 200 OK\r\n";
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} else {
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headers = "HTTP/1.0 206 OK\r\n";
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headers += "Content-Range: bytes " + cbSkip + "-" + (file.length() - 1) + "/";
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if (contentLength == null) {
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headers += "*";
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} else {
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headers += contentLength;
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}
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headers += "\r\n";
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Log.i(TAG, "Streaming starts from: " + cbSkip);
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}
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String name = file.getPath();
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int index = name.lastIndexOf('.');
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String ext = "";
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if (index != -1) {
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ext = name.substring(index + 1).toLowerCase();
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}
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if ("mp3".equals(ext)) {
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headers += "Content-Type: audio/mpeg\r\n";
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} else {
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headers += "Content-Type: " + "application/octet-stream" + "\r\n";
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}
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long fileSize;
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if (contentLength == null) {
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fileSize = getFileSize();
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} else {
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fileSize = contentLength;
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if (cbSkip > 0) {
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headers += "Content-Length: " + (fileSize - cbSkip) + "\r\n";
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} else {
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headers += "Content-Length: " + fileSize + "\r\n";
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}
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headers += "Accept-Ranges: bytes \r\n";
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}
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Log.i(TAG, "Streaming fileSize: " + fileSize);
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headers += "Connection: close\r\n";
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headers += "\r\n";
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long cbToSend = fileSize - cbSkip;
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OutputStream output = null;
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byte[] buff = new byte[64 * 1024];
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try {
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output = new BufferedOutputStream(client.getOutputStream(), 32 * 1024);
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output.write(headers.getBytes());
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// Make sure to have file lock
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onStart();
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// Loop as long as there's stuff to send
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while (isRunning && !client.isClosed()) {
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onResume();
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// See if there's more to send
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int cbSentThisBatch = 0;
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if (file.exists()) {
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FileInputStream input = new FileInputStream(file);
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input.skip(cbSkip);
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int cbToSendThisBatch = input.available();
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while (cbToSendThisBatch > 0) {
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int cbToRead = Math.min(cbToSendThisBatch, buff.length);
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int cbRead = input.read(buff, 0, cbToRead);
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if (cbRead == -1) {
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break;
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}
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cbToSendThisBatch -= cbRead;
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cbToSend -= cbRead;
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output.write(buff, 0, cbRead);
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output.flush();
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cbSkip += cbRead;
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cbSentThisBatch += cbRead;
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}
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input.close();
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}
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// Done regardless of whether or not it thinks it is
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if (isWorkDone()) {
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break;
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}
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// If we did nothing this batch, block for a second
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if (cbSentThisBatch == 0) {
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Log.d(TAG, "Blocking until more data appears (" + cbToSend + ")");
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Thread.sleep(1000);
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}
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}
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// Release file lock, use of stream proxy means nothing else is using it
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onStop();
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} catch (SocketException socketException) {
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Log.e(TAG, "SocketException() thrown, proxy client has probably closed. This can exit harmlessly");
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// Release file lock, use of stream proxy means nothing else is using it
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onStop();
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} catch (Exception e) {
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Log.e(TAG, "Exception thrown from streaming task:");
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Log.e(TAG, e.getClass().getName() + " : " + e.getLocalizedMessage());
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}
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// Cleanup
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try {
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if (output != null) {
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output.close();
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}
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client.close();
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} catch (IOException e) {
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Log.e(TAG, "IOException while cleaning up streaming task:");
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Log.e(TAG, e.getClass().getName() + " : " + e.getLocalizedMessage());
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}
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}
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public void onStart() {
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}
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public void onStop() {
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}
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public void onResume() {
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}
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public boolean isWorkDone() {
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return cbSkip >= file.length();
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}
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}
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}
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