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108 lines
3.9 KiB
Java
108 lines
3.9 KiB
Java
/*
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* This file is part of Arduino.
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*
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* Copyright 2014 Arduino LLC (http://www.arduino.cc/)
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*
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* Arduino 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* As a special exception, you may use this file as part of a free software
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* library without restriction. Specifically, if other files instantiate
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* templates or use macros or inline functions from this file, or you compile
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* this file and link it with other files to produce an executable, this
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* file does not by itself cause the resulting executable to be covered by
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* the GNU General Public License. This exception does not however
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* invalidate any other reasons why the executable file might be covered by
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* the GNU General Public License.
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*/
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package cc.arduino.contributions;
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import cc.arduino.utils.FileHash;
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import cc.arduino.utils.Progress;
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import cc.arduino.utils.network.FileDownloader;
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import java.io.File;
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import java.net.URL;
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import java.util.Observable;
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import java.util.Observer;
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import static processing.app.I18n._;
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import static processing.app.I18n.format;
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public class DownloadableContributionsDownloader {
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private final File stagingFolder;
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public DownloadableContributionsDownloader(File _stagingFolder) {
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stagingFolder = _stagingFolder;
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}
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public File download(DownloadableContribution contribution,
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final Progress progress, final String statusText)
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throws Exception {
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URL url = new URL(contribution.getUrl());
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final File outputFile = new File(stagingFolder, contribution.getArchiveFileName());
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// Ensure the existence of staging folder
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stagingFolder.mkdirs();
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// Need to download or resume downloading?
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if (!outputFile.isFile() || (outputFile.length() < contribution.getSize())) {
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download(url, outputFile, progress, statusText);
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}
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// Test checksum
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progress.setStatus(_("Verifying archive integrity..."));
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onProgress(progress);
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String checksum = contribution.getChecksum();
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String algo = checksum.split(":")[0];
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if (!FileHash.hash(outputFile, algo).equalsIgnoreCase(checksum)) {
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throw new Exception(_("CRC doesn't match. File is corrupted."));
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}
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contribution.setDownloaded(true);
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contribution.setDownloadedFile(outputFile);
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return outputFile;
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}
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public void download(URL url, File tmpFile, final Progress progress,
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final String statusText) throws Exception {
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FileDownloader downloader = new FileDownloader(url, tmpFile);
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downloader.addObserver(new Observer() {
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@Override
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public void update(Observable o, Object arg) {
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FileDownloader me = (FileDownloader) o;
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String msg = "";
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if (me.getDownloadSize() != null) {
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long downloaded = (me.getInitialSize() + me.getDownloaded()) / 1000;
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long total = (me.getInitialSize() + me.getDownloadSize()) / 1000;
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msg = format(_("Downloaded {0}kb of {1}kb."), downloaded, total);
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}
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progress.setStatus(statusText + " " + msg);
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progress.setProgress(me.getProgress());
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onProgress(progress);
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}
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});
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downloader.download();
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if (!downloader.isCompleted()) {
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throw new Exception(format(_("Error downloading {0}"), url), downloader.getError());
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}
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}
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protected void onProgress(Progress progress) {
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// Empty
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}
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}
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