/*
- * Copyright © 2017-2019 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2017-2020 Soren Stoutner <soren@stoutner.com>.
*
* This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
*
package com.stoutner.privacybrowser.activities;
import android.app.Activity;
-import android.app.DialogFragment;
import android.content.Context;
+import android.content.Intent;
import android.content.SharedPreferences;
-import android.graphics.Typeface;
-import android.os.AsyncTask;
+import android.content.res.Configuration;
import android.os.Build;
import android.os.Bundle;
import android.os.LocaleList;
import android.preference.PreferenceManager;
-import android.support.v4.app.NavUtils;
-import android.support.v4.widget.SwipeRefreshLayout;
-import android.support.v7.app.ActionBar;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.Toolbar;
-import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.style.ForegroundColorSpan;
-import android.text.style.StyleSpan;
+import android.util.TypedValue;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
-import android.webkit.CookieManager;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TextView;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.core.app.NavUtils;
+import androidx.fragment.app.DialogFragment;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
+
+import com.google.android.material.snackbar.Snackbar;
import com.stoutner.privacybrowser.R;
import com.stoutner.privacybrowser.dialogs.AboutViewSourceDialog;
+import com.stoutner.privacybrowser.helpers.ProxyHelper;
+import com.stoutner.privacybrowser.viewmodelfactories.WebViewSourceFactory;
+import com.stoutner.privacybrowser.viewmodels.WebViewSource;
-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.URL;
+import java.net.Proxy;
import java.util.Locale;
public class ViewSourceActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
+ // Get a handle for the shared preferences.
+ SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
+
+ // Get the screenshot preference.
+ boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
+
// Disable screenshots if not allowed.
- if (!MainWebViewActivity.allowScreenshots) {
+ if (!allowScreenshots) {
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
}
// Set the theme.
- if (MainWebViewActivity.darkTheme) {
- setTheme(R.style.PrivacyBrowserDark);
- } else {
- setTheme(R.style.PrivacyBrowserLight);
- }
+ setTheme(R.style.PrivacyBrowser);
// Run the default commands.
super.onCreate(savedInstanceState);
+ // Get the launching intent
+ Intent intent = getIntent();
+
+ // Get the information from the intent.
+ String userAgent = intent.getStringExtra("user_agent");
+ String currentUrl = intent.getStringExtra("current_url");
+
+ // Remove the incorrect lint warning below that the user agent might be null.
+ assert userAgent != null;
+
// Store a handle for the current activity.
activity = this;
// Set the content view.
setContentView(R.layout.view_source_coordinatorlayout);
- // `SupportActionBar` from `android.support.v7.app.ActionBar` must be used until the minimum API is >= 21.
- Toolbar viewSourceAppBar = findViewById(R.id.view_source_toolbar);
- setSupportActionBar(viewSourceAppBar);
+ // Get a handle for the toolbar.
+ Toolbar toolbar = findViewById(R.id.view_source_toolbar);
- // Setup the app bar.
- final ActionBar appBar = getSupportActionBar();
+ // Set the support action bar.
+ setSupportActionBar(toolbar);
- // Remove the incorrect warning in Android Studio that appBar might be null.
- assert appBar != null;
+ // Get a handle for the action bar.
+ final ActionBar actionBar = getSupportActionBar();
- // Add the custom layout to the app bar.
- appBar.setCustomView(R.layout.view_source_app_bar);
- appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
+ // Remove the incorrect lint warning that the action bar might be null.
+ assert actionBar != null;
- // Get a handle for the url text box.
- EditText urlEditText = findViewById(R.id.url_edittext);
+ // Add the custom layout to the action bar.
+ actionBar.setCustomView(R.layout.view_source_app_bar);
+ actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
- // Get the formatted URL string from the main activity.
- String formattedUrlString = MainWebViewActivity.formattedUrlString;
+ // Get handles for the views.
+ EditText urlEditText = findViewById(R.id.url_edittext);
+ TextView requestHeadersTextView = findViewById(R.id.request_headers);
+ TextView responseMessageTextView = findViewById(R.id.response_message);
+ TextView responseHeadersTextView = findViewById(R.id.response_headers);
+ TextView responseBodyTextView = findViewById(R.id.response_body);
+ ProgressBar progressBar = findViewById(R.id.progress_bar);
+ SwipeRefreshLayout swipeRefreshLayout = findViewById(R.id.view_source_swiperefreshlayout);
// Populate the URL text box.
- urlEditText.setText(formattedUrlString);
+ urlEditText.setText(currentUrl);
- // Initialize the foreground color spans for highlighting the URLs. We have to use the deprecated `getColor()` until API >= 23.
- redColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.red_a700));
+ // Initialize the gray foreground color spans for highlighting the URLs. The deprecated `getResources()` must be used until API >= 23.
initialGrayColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.gray_500));
finalGrayColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.gray_500));
+ // Get the current theme status.
+ int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
+
+ // Set the red color span according to the theme.
+ if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
+ redColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.red_a700));
+ } else {
+ redColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.red_900));
+ }
+
// Apply text highlighting to the URL.
highlightUrlText();
}
});
+ // Set the refresh color scheme according to the theme.
+ if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
+ swipeRefreshLayout.setColorSchemeResources(R.color.blue_700);
+ } else {
+ swipeRefreshLayout.setColorSchemeResources(R.color.violet_500);
+ }
+
+ // Initialize a color background typed value.
+ TypedValue colorBackgroundTypedValue = new TypedValue();
+
+ // Get the color background from the theme.
+ getTheme().resolveAttribute(android.R.attr.colorBackground, colorBackgroundTypedValue, true);
+
+ // Get the color background int from the typed value.
+ int colorBackgroundInt = colorBackgroundTypedValue.data;
+
+ // Set the swipe refresh background color.
+ swipeRefreshLayout.setProgressBackgroundColorSchemeColor(colorBackgroundInt);
+
+ // Get the Do Not Track status.
+ boolean doNotTrack = sharedPreferences.getBoolean("do_not_track", false);
+
+ // 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 = 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();
+ }
+
+ // Instantiate the proxy helper.
+ ProxyHelper proxyHelper = new ProxyHelper();
+
+ // Get the current proxy.
+ Proxy proxy = proxyHelper.getCurrentProxy(this);
+
+ // Make the progress bar visible.
+ progressBar.setVisibility(View.VISIBLE);
+
+ // Set the progress bar to be indeterminate.
+ progressBar.setIndeterminate(true);
+
+ // Instantiate the WebView source factory.
+ ViewModelProvider.Factory webViewSourceFactory = new WebViewSourceFactory(currentUrl, userAgent, doNotTrack, localeString, proxy, MainWebViewActivity.executorService);
+
+ // Instantiate the WebView source view model class.
+ final WebViewSource webViewSource = new ViewModelProvider(this, webViewSourceFactory).get(WebViewSource.class);
+
+ // Create a source observer.
+ webViewSource.observeSource().observe(this, sourceStringArray -> {
+ // Populate the text views. This can take a long time, and freezes the user interface, if the response body is particularly large.
+ requestHeadersTextView.setText(sourceStringArray[0]);
+ responseMessageTextView.setText(sourceStringArray[1]);
+ responseHeadersTextView.setText(sourceStringArray[2]);
+ responseBodyTextView.setText(sourceStringArray[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);
+ });
+
+ // Create an error observer.
+ webViewSource.observeErrors().observe(this, errorString -> {
+ // Display an error snackbar if the string is not `""`.
+ if (!errorString.equals("")) {
+ Snackbar.make(swipeRefreshLayout, errorString, Snackbar.LENGTH_LONG).show();
+ }
+ });
+
+ // Implement swipe to refresh.
+ swipeRefreshLayout.setOnRefreshListener(() -> {
+ // Make the progress bar visible.
+ progressBar.setVisibility(View.VISIBLE);
+
+ // Set the progress bar to be indeterminate.
+ progressBar.setIndeterminate(true);
+
+ // Get the URL.
+ String urlString = urlEditText.getText().toString();
+
+ // Get the updated source.
+ webViewSource.updateSource(urlString);
+ });
+
// Set the go button on the keyboard to request new source data.
urlEditText.setOnKeyListener((View v, int keyCode, KeyEvent event) -> {
// Request new source data if the enter key was pressed.
// Remove the focus from the URL box.
urlEditText.clearFocus();
+ // Make the progress bar visible.
+ progressBar.setVisibility(View.VISIBLE);
+
+ // Set the progress bar to be indeterminate.
+ progressBar.setIndeterminate(true);
+
// Get the URL.
- String url = urlEditText.getText().toString();
+ String urlString = urlEditText.getText().toString();
- // Get new source data for the current URL if it beings with `http`.
- if (url.startsWith("http")) {
- new GetSource(this).execute(url);
- }
+ // Get the updated source.
+ webViewSource.updateSource(urlString);
// Consume the key press.
return true;
return false;
}
});
-
- // Implement swipe to refresh.
- SwipeRefreshLayout swipeRefreshLayout = findViewById(R.id.view_source_swiperefreshlayout);
- swipeRefreshLayout.setOnRefreshListener(() -> {
- // Get the URL.
- String url = urlEditText.getText().toString();
-
- // Get new source data for the URL if it begins with `http`.
- if (url.startsWith("http")) {
- new GetSource(this).execute(url);
- } else {
- // Stop the refresh animation.
- swipeRefreshLayout.setRefreshing(false);
- }
- });
-
- // Set the swipe to refresh color according to the theme.
- if (MainWebViewActivity.darkTheme) {
- swipeRefreshLayout.setColorSchemeResources(R.color.blue_600);
- swipeRefreshLayout.setProgressBackgroundColorSchemeResource(R.color.gray_800);
- } else {
- swipeRefreshLayout.setColorSchemeResources(R.color.blue_700);
- }
-
- // Get the source using an AsyncTask if the URL begins with `http`.
- if (formattedUrlString.startsWith("http")) {
- new GetSource(this).execute(formattedUrlString);
- }
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
- // Inflate the menu; this adds items to the action bar if it is present.
+ // Inflate the menu. This adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.view_source_options_menu, menu);
// Display the menu.
}
@Override
- public boolean onOptionsItemSelected(MenuItem menuItem) {
+ public boolean onOptionsItemSelected(@NonNull MenuItem menuItem) {
// Get a handle for the about alert dialog.
DialogFragment aboutDialogFragment = new AboutViewSourceDialog();
// Show the about alert dialog.
- aboutDialogFragment.show(getFragmentManager(), getString(R.string.about));
+ aboutDialogFragment.show(getSupportFragmentManager(), getString(R.string.about));
// Consume the event.
return true;
}
}
}
-
- // `String` declares the parameters. `Void` does not declare progress units. `String[]` contains the results.
- private static class GetSource extends AsyncTask<String, Void, SpannableStringBuilder[]> {
- // Create a weak reference to the calling activity.
- private WeakReference<Activity> activityWeakReference;
-
- // Populate the weak reference to the calling activity.
- GetSource(Activity activity) {
- activityWeakReference = new WeakReference<>(activity);
- }
-
- // `onPreExecute()` operates on the UI thread.
- @Override
- protected void onPreExecute() {
- // Get a handle for the activity.
- Activity viewSourceActivity = activityWeakReference.get();
-
- // Abort if the activity is gone.
- if ((viewSourceActivity == null) || viewSourceActivity.isFinishing()) {
- return;
- }
-
- // Get a handle for the progress bar.
- ProgressBar progressBar = viewSourceActivity.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 activity.
- 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]);
-
- // Open a connection to the URL. No data is actually sent at this point.
- HttpURLConnection httpUrlConnection = (HttpURLConnection) url.openConnection();
-
- // Instantiate 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 + 1, 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 + 1, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
- }
- requestHeadersBuilder.append(": keep-alive");
-
-
- // Get the current `User-Agent` string.
- String userAgentString = MainWebViewActivity.appliedUserAgentString;
-
- // Set the `User-Agent` header property.
- httpUrlConnection.setRequestProperty("User-Agent", userAgentString);
-
- // 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 + 1, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
- }
- requestHeadersBuilder.append(": ");
- requestHeadersBuilder.append(userAgentString);
-
-
- // 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 + 1, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
- }
- requestHeadersBuilder.append(": 1");
-
-
- // 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 + 1, newRequestHeadersBuilderLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
- }
- requestHeadersBuilder.append(": ");
-
-
- // 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 + 1, 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");
-
- // 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 + 1, 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");
-
-
- // 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 indicated locale from the list.
- localesStringBuilder.append(localeList.get(i));
-
- // If not the first locale, append `;q=0.i`, which drops by .1 for each removal from the main locale.
- if (q < 10) {
- localesStringBuilder.append(";q=0.");
- localesStringBuilder.append(q);
- }
-
- // Decrement `q`.
- 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 + 1, 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) {
- // Set the `Cookie` 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 + 1, 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 + 1, 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 + 1, 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];
-
- // Instantiate the variable to track the buffer length.
- 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 transferred 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 e) {
- e.printStackTrace();
- }
-
- // 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 `httpUrlConnection`.
- httpUrlConnection.disconnect();
- }
- } catch (IOException e) {
- e.printStackTrace();
- }
-
- // 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 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
projects / PrivacyBrowserAndroid.git / blobdiff