X-Git-Url: https://gitweb.stoutner.com/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fasynctasks%2FSaveUrl.java;h=9d751c41e216c099125c2ed2623d699e45bd7a13;hb=HEAD;hp=1eb50323f096afdcfb70fabc64e4564636e89588;hpb=4d51aa9acb8daaec1326f14e5025fde6d1f0dcd8;p=PrivacyBrowserAndroid.git diff --git a/app/src/main/java/com/stoutner/privacybrowser/asynctasks/SaveUrl.java b/app/src/main/java/com/stoutner/privacybrowser/asynctasks/SaveUrl.java deleted file mode 100644 index 1eb50323..00000000 --- a/app/src/main/java/com/stoutner/privacybrowser/asynctasks/SaveUrl.java +++ /dev/null @@ -1,211 +0,0 @@ -/* - * Copyright © 2020 Soren Stoutner . - * - * This file is part of Privacy Browser . - * - * Privacy Browser is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * Privacy Browser is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with Privacy Browser. If not, see . - */ - -package com.stoutner.privacybrowser.asynctasks; - -import android.app.Activity; -import android.content.Context; -import android.os.AsyncTask; -import android.webkit.CookieManager; - -import com.google.android.material.snackbar.Snackbar; -import com.stoutner.privacybrowser.R; -import com.stoutner.privacybrowser.helpers.ProxyHelper; -import com.stoutner.privacybrowser.views.NoSwipeViewPager; - -import java.io.BufferedInputStream; -import java.io.File; -import java.io.FileOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; -import java.lang.ref.WeakReference; -import java.net.HttpURLConnection; -import java.net.Proxy; -import java.net.URL; - -public class SaveUrl extends AsyncTask { - // Define a weak references for the calling context and activities. - private WeakReference contextWeakReference; - private WeakReference activityWeakReference; - - // Define a success string constant. - private final String SUCCESS = "Success"; - - // Define the class variables. - private String filePathString; - private String userAgent; - private boolean cookiesEnabled; - private Snackbar savingFileSnackbar; - - // The public constructor. - public SaveUrl(Context context, Activity activity, String filePathString, String userAgent, boolean cookiesEnabled) { - // Populate weak references to the calling context and activity. - contextWeakReference = new WeakReference<>(context); - activityWeakReference = new WeakReference<>(activity); - - // Store the class variables. - this.filePathString = filePathString; - this.userAgent = userAgent; - this.cookiesEnabled = cookiesEnabled; - } - - // `onPreExecute()` operates on the UI thread. - @Override - protected void onPreExecute() { - // Get a handle for the activity. - Activity activity = activityWeakReference.get(); - - // Abort if the activity is gone. - if ((activity==null) || activity.isFinishing()) { - return; - } - - // Get a handle for the no swipe view pager. - NoSwipeViewPager noSwipeViewPager = activity.findViewById(R.id.webviewpager); - - // Create a saving file snackbar. - savingFileSnackbar = Snackbar.make(noSwipeViewPager, R.string.saving_file, Snackbar.LENGTH_INDEFINITE); - - // Display the saving file snackbar. - savingFileSnackbar.show(); - } - - @Override - protected String doInBackground(String... urlToSave) { - // Get a handle for the context and activity. - Context context = contextWeakReference.get(); - Activity activity = activityWeakReference.get(); - - // Abort if the activity is gone. - if ((activity == null) || activity.isFinishing()) { - return null; - } - - // Define a save disposition string. - String saveDisposition = SUCCESS; - - // Because everything relating to requesting data from a webserver can throw errors, the entire section must catch `IOExceptions`. - try { - // Get the URL from the main activity. - URL url = new URL(urlToSave[0]); - - // Instantiate the proxy helper. - ProxyHelper proxyHelper = new ProxyHelper(); - - // Get the current proxy. - Proxy proxy = proxyHelper.getCurrentProxy(context); - - // Open a connection to the URL. No data is actually sent at this point. - HttpURLConnection httpUrlConnection = (HttpURLConnection) url.openConnection(proxy); - - // Add the user agent to the header property. - httpUrlConnection.setRequestProperty("User-Agent", userAgent); - - // Add the cookies if they are enabled. - if (cookiesEnabled) { - // Get the cookies for the current domain. - String cookiesString = CookieManager.getInstance().getCookie(url.toString()); - - // Only add the cookies if they are not null. - if (cookiesString != null) { - // Add the cookies to the header property. - httpUrlConnection.setRequestProperty("Cookie", cookiesString); - } - } - - // The actual network request is in a `try` bracket so that `disconnect()` is run in the `finally` section even if an error is encountered in the main block. - try { - // Get the response code, which causes the connection to the server to be made. - httpUrlConnection.getResponseCode(); - - // Get the response body stream. - InputStream inputStream = new BufferedInputStream(httpUrlConnection.getInputStream()); - - // Get the file. - File file = new File(filePathString); - - // Delete the file if it exists. - if (file.exists()) { - //noinspection ResultOfMethodCallIgnored - file.delete(); - } - - // Create a new file. - //noinspection ResultOfMethodCallIgnored - file.createNewFile(); - - // Create an output file stream. - OutputStream outputStream = new FileOutputStream(file); - - // Initialize the conversion buffer byte array. - byte[] conversionBufferByteArray = new byte[1024]; - - // Define the buffer length variable. - int bufferLength; - - // Attempt to read data from the input stream and store it in the output stream. Also store the amount of data read in the buffer length variable. - while ((bufferLength = inputStream.read(conversionBufferByteArray)) > 0) { // Proceed while the amount of data stored in the buffer in > 0. - // Write the contents of the conversion buffer to the output stream. - outputStream.write(conversionBufferByteArray, 0, bufferLength); - } - - // Close the input stream. - inputStream.close(); - - // Close the output stream. - outputStream.close(); - } finally { - // Disconnect the HTTP URL connection. - httpUrlConnection.disconnect(); - } - } catch (IOException exception) { - // Store the error in the save disposition string. - saveDisposition = exception.toString(); - } - - // Return the save disposition string. - return saveDisposition; - } - - // `onPostExecute()` operates on the UI thread. - @Override - protected void onPostExecute(String saveDisposition) { - // Get a handle for the activity. - Activity activity = activityWeakReference.get(); - - // Abort if the activity is gone. - if ((activity == null) || activity.isFinishing()) { - return; - } - - // Get a handle for the no swipe view pager. - NoSwipeViewPager noSwipeViewPager = activity.findViewById(R.id.webviewpager); - - // Dismiss the saving file snackbar. - savingFileSnackbar.dismiss(); - - // Display a save disposition snackbar. - if (saveDisposition.equals(SUCCESS)) { - Snackbar.make(noSwipeViewPager, R.string.file_saved, Snackbar.LENGTH_SHORT).show(); - } else { - Snackbar.make(noSwipeViewPager, activity.getString(R.string.error_saving_file) + " " + saveDisposition, Snackbar.LENGTH_INDEFINITE).show(); - } - } -} \ No newline at end of file