X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fasynctasks%2FGetSource.java;fp=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fasynctasks%2FGetSource.java;h=0000000000000000000000000000000000000000;hp=f5b4e54b67f1be6870a9c6b50e528bbca787e7e7;hb=b82022327701273b1b56419e8d6042895c0bc7b9;hpb=0488649384ddea89d768c1fc1cc5fb71f8af6528 diff --git a/app/src/main/java/com/stoutner/privacybrowser/asynctasks/GetSource.java b/app/src/main/java/com/stoutner/privacybrowser/asynctasks/GetSource.java deleted file mode 100644 index f5b4e54b..00000000 --- a/app/src/main/java/com/stoutner/privacybrowser/asynctasks/GetSource.java +++ /dev/null @@ -1,534 +0,0 @@ -/* - * Copyright © 2017-2020 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.content.SharedPreferences; -import android.graphics.Typeface; -import android.os.AsyncTask; -import android.os.Build; -import android.os.LocaleList; -import android.preference.PreferenceManager; -import android.text.SpannableStringBuilder; -import android.text.Spanned; -import android.text.style.StyleSpan; -import android.view.View; -import android.webkit.CookieManager; -import android.widget.ProgressBar; -import android.widget.TextView; - -import androidx.swiperefreshlayout.widget.SwipeRefreshLayout; - -import com.stoutner.privacybrowser.R; -import com.stoutner.privacybrowser.helpers.ProxyHelper; - -import java.io.BufferedInputStream; -import java.io.ByteArrayOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.lang.ref.WeakReference; -import java.net.HttpURLConnection; -import java.net.Proxy; -import java.net.URL; -import java.util.Locale; - -// This must run asynchronously because it involves a network request. `String` declares the parameters. `Void` does not declare progress units. `SpannableStringBuilder[]` contains the results. -public class GetSource extends AsyncTask { - // Define weak references to the calling context and activity. - private WeakReference contextWeakReference; - private WeakReference activityWeakReference; - - // Store the user agent. - private String userAgent; - - public GetSource(Context context, Activity activity, String userAgent) { - // Populate the weak references to the calling context and activity. - contextWeakReference = new WeakReference<>(context); - activityWeakReference = new WeakReference<>(activity); - - // Store the user agent. - this.userAgent = userAgent; - } - - // `onPreExecute()` operates on the UI thread. - @Override - protected void onPreExecute() { - // Get a handle for the calling activity. - Activity activity = activityWeakReference.get(); - - // Abort if the activity is gone. - if ((activity == null) || activity.isFinishing()) { - return; - } - - // Get a handle for the progress bar. - ProgressBar progressBar = activity.findViewById(R.id.progress_bar); - - // Make the progress bar visible. - progressBar.setVisibility(View.VISIBLE); - - // Set the progress bar to be indeterminate. - progressBar.setIndeterminate(true); - } - - @Override - protected SpannableStringBuilder[] doInBackground(String... formattedUrlString) { - // Initialize the response body String. - SpannableStringBuilder requestHeadersBuilder = new SpannableStringBuilder(); - SpannableStringBuilder responseMessageBuilder = new SpannableStringBuilder(); - SpannableStringBuilder responseHeadersBuilder = new SpannableStringBuilder(); - SpannableStringBuilder responseBodyBuilder = new SpannableStringBuilder(); - - // 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 new SpannableStringBuilder[] {requestHeadersBuilder, responseMessageBuilder, responseHeadersBuilder, responseBodyBuilder}; - } - - // Because everything relating to requesting data from a webserver can throw errors, the entire section must catch `IOExceptions`. - try { - // Get the current URL from the main activity. - URL url = new URL(formattedUrlString[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); - - // Define the variables necessary to build the request headers. - requestHeadersBuilder = new SpannableStringBuilder(); - int oldRequestHeadersBuilderLength; - int newRequestHeadersBuilderLength; - - - // Set the `Host` header property. - httpUrlConnection.setRequestProperty("Host", url.getHost()); - - // Add the `Host` header to the string builder and format the text. - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("Host", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("Host"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": "); - requestHeadersBuilder.append(url.getHost()); - - - // Set the `Connection` header property. - httpUrlConnection.setRequestProperty("Connection", "keep-alive"); - - // Add the `Connection` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("Connection", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("Connection"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": keep-alive"); - - - // Set the `Upgrade-Insecure-Requests` header property. - httpUrlConnection.setRequestProperty("Upgrade-Insecure-Requests", "1"); - - // Add the `Upgrade-Insecure-Requests` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("Upgrade-Insecure-Requests", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("Upgrade-Insecure_Requests"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": 1"); - - - // Set the `User-Agent` header property. - httpUrlConnection.setRequestProperty("User-Agent", userAgent); - - // Add the `User-Agent` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("User-Agent", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("User-Agent"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": "); - requestHeadersBuilder.append(userAgent); - - - // Set the `x-requested-with` header property. - httpUrlConnection.setRequestProperty("x-requested-with", ""); - - // Add the `x-requested-with` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("x-requested-with", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("x-requested-with"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": "); - - - // Set the `Sec-Fetch-Site` header property. - httpUrlConnection.setRequestProperty("Sec-Fetch-Site", "none"); - - // Add the `Sec-Fetch-Site` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("Sec-Fetch-Site", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("Sec-Fetch-Site"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": none"); - - - // Set the `Sec-Fetch-Mode` header property. - httpUrlConnection.setRequestProperty("Sec-Fetch-Mode", "navigate"); - - // Add the `Sec-Fetch-Mode` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("Sec-Fetch-Mode", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("Sec-Fetch-Mode"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": navigate"); - - - // Set the `Sec-Fetch-User` header property. - httpUrlConnection.setRequestProperty("Sec-Fetch-User", "?1"); - - // Add the `Sec-Fetch-User` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("Sec-Fetch-User", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("Sec-Fetch-User"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": ?1"); - - - // Get a handle for the shared preferences. - SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext()); - - // Only populate `Do Not Track` if it is enabled. - if (sharedPreferences.getBoolean("do_not_track", false)) { - // Set the `dnt` header property. - httpUrlConnection.setRequestProperty("dnt", "1"); - - // Add the `dnt` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("dnt", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("dnt"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": 1"); - } - - - // Set the `Accept` header property. - httpUrlConnection.setRequestProperty("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3"); - - // Add the `Accept` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("Accept", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("Accept"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": "); - requestHeadersBuilder.append("text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3"); - - - // Instantiate a locale string. - String localeString; - - // Populate the locale string. - if (Build.VERSION.SDK_INT >= 24) { // SDK >= 24 has a list of locales. - // Get the list of locales. - LocaleList localeList = activity.getResources().getConfiguration().getLocales(); - - // Initialize a string builder to extract the locales from the list. - StringBuilder localesStringBuilder = new StringBuilder(); - - // Initialize a `q` value, which is used by `WebView` to indicate the order of importance of the languages. - int q = 10; - - // Populate the string builder with the contents of the locales list. - for (int i = 0; i < localeList.size(); i++) { - // Append a comma if there is already an item in the string builder. - if (i > 0) { - localesStringBuilder.append(","); - } - - // Get the locale from the list. - Locale locale = localeList.get(i); - - // Add the locale to the string. `locale` by default displays as `en_US`, but WebView uses the `en-US` format. - localesStringBuilder.append(locale.getLanguage()); - localesStringBuilder.append("-"); - localesStringBuilder.append(locale.getCountry()); - - // If not the first locale, append `;q=0.x`, which drops by .1 for each removal from the main locale until q=0.1. - if (q < 10) { - localesStringBuilder.append(";q=0."); - localesStringBuilder.append(q); - } - - // Decrement `q` if it is greater than 1. - if (q > 1) { - q--; - } - - // Add a second entry for the language only portion of the locale. - localesStringBuilder.append(","); - localesStringBuilder.append(locale.getLanguage()); - - // Append `1;q=0.x`, which drops by .1 for each removal form the main locale until q=0.1. - localesStringBuilder.append(";q=0."); - localesStringBuilder.append(q); - - // Decrement `q` if it is greater than 1. - if (q > 1) { - q--; - } - } - - // Store the populated string builder in the locale string. - localeString = localesStringBuilder.toString(); - } else { // SDK < 24 only has a primary locale. - // Store the locale in the locale string. - localeString = Locale.getDefault().toString(); - } - - // Set the `Accept-Language` header property. - httpUrlConnection.setRequestProperty("Accept-Language", localeString); - - // Add the `Accept-Language` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("Accept-Language", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("Accept-Language"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": "); - requestHeadersBuilder.append(localeString); - - - // Get the cookies for the current domain. - String cookiesString = CookieManager.getInstance().getCookie(url.toString()); - - // Only process the cookies if they are not null. - if (cookiesString != null) { - // Add the cookies to the header property. - httpUrlConnection.setRequestProperty("Cookie", cookiesString); - - // Add the cookie header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("Cookie", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("Cookie"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": "); - requestHeadersBuilder.append(cookiesString); - } - - - // `HttpUrlConnection` sets `Accept-Encoding` to be `gzip` by default. If the property is manually set, than `HttpUrlConnection` does not process the decoding. - // Add the `Accept-Encoding` header to the string builder and format the text. - requestHeadersBuilder.append(System.getProperty("line.separator")); - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - requestHeadersBuilder.append("Accept-Encoding", new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - oldRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.append("Accept-Encoding"); - newRequestHeadersBuilderLength = requestHeadersBuilder.length(); - requestHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldRequestHeadersBuilderLength, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - requestHeadersBuilder.append(": gzip"); - - - // 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 { - // Initialize the string builders. - responseMessageBuilder = new SpannableStringBuilder(); - responseHeadersBuilder = new SpannableStringBuilder(); - - // Get the response code, which causes the connection to the server to be made. - int responseCode = httpUrlConnection.getResponseCode(); - - // Populate the response message string builder. - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - responseMessageBuilder.append(String.valueOf(responseCode), new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - responseMessageBuilder.append(String.valueOf(responseCode)); - int newLength = responseMessageBuilder.length(); - responseMessageBuilder.setSpan(new StyleSpan(Typeface.BOLD), 0, newLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - responseMessageBuilder.append(": "); - responseMessageBuilder.append(httpUrlConnection.getResponseMessage()); - - // Initialize the iteration variable. - int i = 0; - - // Iterate through the received header fields. - while (httpUrlConnection.getHeaderField(i) != null) { - // Add a new line if there is already information in the string builder. - if (i > 0) { - responseHeadersBuilder.append(System.getProperty("line.separator")); - } - - // Add the header to the string builder and format the text. - if (Build.VERSION.SDK_INT >= 21) { // Newer versions of Android are so smart. - responseHeadersBuilder.append(httpUrlConnection.getHeaderFieldKey(i), new StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } else { // Older versions not so much. - int oldLength = responseHeadersBuilder.length(); - responseHeadersBuilder.append(httpUrlConnection.getHeaderFieldKey(i)); - int newLength = responseHeadersBuilder.length(); - responseHeadersBuilder.setSpan(new StyleSpan(Typeface.BOLD), oldLength, newLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); - } - responseHeadersBuilder.append(": "); - responseHeadersBuilder.append(httpUrlConnection.getHeaderField(i)); - - // Increment the iteration variable. - i++; - } - - // Instantiate an input stream for the response body. - InputStream inputStream; - - // Get the correct input stream based on the response code. - if (responseCode == 404) { // Get the error stream. - inputStream = new BufferedInputStream(httpUrlConnection.getErrorStream()); - } else { // Get the response body stream. - inputStream = new BufferedInputStream(httpUrlConnection.getInputStream()); - } - - // Initialize the byte array output stream and the conversion buffer byte array. - ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); - byte[] conversionBufferByteArray = new byte[1024]; - - // Define the buffer length variable. - int bufferLength; - - try { - // Attempt to read data from the input stream and store it in the conversion buffer byte array. 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 is > 0. - // Write the contents of the conversion buffer to the byte array output stream. - byteArrayOutputStream.write(conversionBufferByteArray, 0, bufferLength); - } - } catch (IOException exception) { - // Do nothing. - } - - // Close the input stream. - inputStream.close(); - - // Populate the response body string with the contents of the byte array output stream. - responseBodyBuilder.append(byteArrayOutputStream.toString()); - } finally { - // Disconnect HTTP URL connection. - httpUrlConnection.disconnect(); - } - } catch (Exception exception) { - // Do nothing. - } - - // Return the response body string as the result. - return new SpannableStringBuilder[] {requestHeadersBuilder, responseMessageBuilder, responseHeadersBuilder, responseBodyBuilder}; - } - - // `onPostExecute()` operates on the UI thread. - @Override - protected void onPostExecute(SpannableStringBuilder[] viewSourceStringArray){ - // Get a handle for the activity. - Activity activity = activityWeakReference.get(); - - // Abort if the activity is gone. - if ((activity == null) || activity.isFinishing()) { - return; - } - - // Get handles for the text views. - TextView requestHeadersTextView = activity.findViewById(R.id.request_headers); - TextView responseMessageTextView = activity.findViewById(R.id.response_message); - TextView responseHeadersTextView = activity.findViewById(R.id.response_headers); - TextView responseBodyTextView = activity.findViewById(R.id.response_body); - ProgressBar progressBar = activity.findViewById(R.id.progress_bar); - SwipeRefreshLayout swipeRefreshLayout = activity.findViewById(R.id.view_source_swiperefreshlayout); - - // Populate the text views. This can take a long time, and freeze the user interface, if the response body is particularly large. - requestHeadersTextView.setText(viewSourceStringArray[0]); - responseMessageTextView.setText(viewSourceStringArray[1]); - responseHeadersTextView.setText(viewSourceStringArray[2]); - responseBodyTextView.setText(viewSourceStringArray[3]); - - // Hide the progress bar. - progressBar.setIndeterminate(false); - progressBar.setVisibility(View.GONE); - - //Stop the swipe to refresh indicator if it is running - swipeRefreshLayout.setRefreshing(false); - } -} \ No newline at end of file