Localize the start and end dates for `ViewSslCertificate.java` and `SslCertificateErr...
[PrivacyBrowser.git] / app / src / main / java / com / stoutner / privacybrowser / dialogs / SslCertificateError.java
1 /**
2  * Copyright 2016-2017 Soren Stoutner <soren@stoutner.com>.
3  *
4  * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
5  *
6  * Privacy Browser is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * Privacy Browser is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with Privacy Browser.  If not, see <http://www.gnu.org/licenses/>.
18  */
19
20 package com.stoutner.privacybrowser.dialogs;
21
22 import android.annotation.SuppressLint;
23 import android.app.AlertDialog;
24 import android.app.Dialog;
25 import android.content.Context;
26 import android.content.DialogInterface;
27 import android.net.http.SslCertificate;
28 import android.net.http.SslError;
29 import android.os.Bundle;
30 import android.support.annotation.NonNull;
31 import android.support.v7.app.AppCompatDialogFragment;
32 import android.text.SpannableStringBuilder;
33 import android.text.Spanned;
34 import android.text.style.ForegroundColorSpan;
35 import android.view.LayoutInflater;
36 import android.widget.TextView;
37
38 import com.stoutner.privacybrowser.R;
39
40 import java.text.DateFormat;
41 import java.util.Date;
42
43 public class SslCertificateError extends AppCompatDialogFragment {
44
45     private String primaryError;
46     private String urlWithError;
47     private String issuedToCName;
48     private String issuedToOName;
49     private String issuedToUName;
50     private String issuedByCName;
51     private String issuedByOName;
52     private String issuedByUName;
53     private String startDate;
54     private String endDate;
55
56     public static SslCertificateError displayDialog(SslError error) {
57         // Get the various components of the SSL error message.
58         int primaryErrorIntForBundle = error.getPrimaryError();
59         String urlWithErrorForBundle = error.getUrl();
60         SslCertificate sslCertificate = error.getCertificate();
61         String issuedToCNameForBundle = sslCertificate.getIssuedTo().getCName();
62         String issuedToONameForBundle = sslCertificate.getIssuedTo().getOName();
63         String issuedToUNameForBundle = sslCertificate.getIssuedTo().getUName();
64         String issuedByCNameForBundle = sslCertificate.getIssuedBy().getCName();
65         String issuedByONameForBundle = sslCertificate.getIssuedBy().getOName();
66         String issuedByUNameForBundle = sslCertificate.getIssuedBy().getUName();
67         Date startDateForBundle = sslCertificate.getValidNotBeforeDate();
68         Date endDateForBundle = sslCertificate.getValidNotAfterDate();
69
70         // Store the SSL error message components in a `Bundle`.
71         Bundle argumentsBundle = new Bundle();
72         argumentsBundle.putInt("PrimaryErrorInt", primaryErrorIntForBundle);
73         argumentsBundle.putString("UrlWithError", urlWithErrorForBundle);
74         argumentsBundle.putString("IssuedToCName", issuedToCNameForBundle);
75         argumentsBundle.putString("IssuedToOName", issuedToONameForBundle);
76         argumentsBundle.putString("IssuedToUName", issuedToUNameForBundle);
77         argumentsBundle.putString("IssuedByCName", issuedByCNameForBundle);
78         argumentsBundle.putString("IssuedByOName", issuedByONameForBundle);
79         argumentsBundle.putString("IssuedByUName", issuedByUNameForBundle);
80         argumentsBundle.putString("StartDate", DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(startDateForBundle));
81         argumentsBundle.putString("EndDate", DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(endDateForBundle));
82
83         // Add `argumentsBundle` to this instance of `SslCertificateError`.
84         SslCertificateError thisSslCertificateErrorDialog = new SslCertificateError();
85         thisSslCertificateErrorDialog.setArguments(argumentsBundle);
86         return thisSslCertificateErrorDialog;
87     }
88
89     @Override
90     public void onCreate(Bundle savedInstanceState) {
91         super.onCreate(savedInstanceState);
92
93         // Save the components of the SSL error message in class variables.
94         urlWithError = getArguments().getString("UrlWithError");
95         issuedToCName = getArguments().getString("IssuedToCName");
96         issuedToOName = getArguments().getString("IssuedToOName");
97         issuedToUName = getArguments().getString("IssuedToUName");
98         issuedByCName = getArguments().getString("IssuedByCName");
99         issuedByOName = getArguments().getString("IssuedByOName");
100         issuedByUName = getArguments().getString("IssuedByUName");
101         startDate = getArguments().getString("StartDate");
102         endDate = getArguments().getString("EndDate");
103
104         // Get the appropriate string for `primaryError.
105         int primaryErrorInt = getArguments().getInt("PrimaryErrorInt");
106         switch (primaryErrorInt) {
107             case SslError.SSL_NOTYETVALID:
108                 primaryError = getString(R.string.future_certificate);
109                 break;
110
111             case SslError.SSL_EXPIRED:
112                 primaryError = getString(R.string.expired_certificate);
113                 break;
114
115             case SslError.SSL_IDMISMATCH:
116                 primaryError = getString(R.string.cn_mismatch);
117                 break;
118
119             case SslError.SSL_UNTRUSTED:
120                 primaryError = getString(R.string.untrusted);
121                 break;
122
123             case SslError.SSL_DATE_INVALID:
124                 primaryError = getString(R.string.invalid_date);
125                 break;
126
127             case SslError.SSL_INVALID:
128                 primaryError = getString(R.string.invalid_certificate);
129                 break;
130         }
131     }
132
133     // The public interface is used to send information back to the parent activity.
134     public interface SslCertificateErrorListener {
135         void onSslErrorCancel();
136
137         void onSslErrorProceed();
138     }
139
140     // `sslCertificateErrorListener` is used in `onAttach` and `onCreateDialog`.
141     private SslCertificateErrorListener sslCertificateErrorListener;
142
143     // Check to make sure that the parent activity implements the listener.
144     public void onAttach(Context context) {
145         super.onAttach(context);
146
147         try {
148             sslCertificateErrorListener = (SslCertificateErrorListener) context;
149         } catch(ClassCastException exception) {
150             throw new ClassCastException(context.toString() + " must implement SslCertificateErrorListener");
151         }
152     }
153
154     // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
155     @SuppressLint("InflateParams")
156     @Override
157     @NonNull
158     public Dialog onCreateDialog(Bundle savedInstanceState) {
159         // Get the activity's layout inflater.
160         LayoutInflater layoutInflater = getActivity().getLayoutInflater();
161
162         // Use `AlertDialog.Builder` to create the `AlertDialog`.  `R.style.LightAlertDialog` formats the color of the button text.
163         AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.LightAlertDialog);
164         dialogBuilder.setTitle(R.string.ssl_certificate_error);
165         // The parent view is `null` because it will be assigned by `AlertDialog`.
166         dialogBuilder.setView(layoutInflater.inflate(R.layout.ssl_certificate_error, null));
167
168         // Set an `onClick` listener on the negative button.  `null` doesn't do anything extra when the button is pressed.  The `Dialog` will automatically close.
169         dialogBuilder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
170             @Override
171             public void onClick(DialogInterface dialog, int which) {
172                 sslCertificateErrorListener.onSslErrorCancel();
173             }
174         });
175
176         // Set an `onClick` listener on the positive button.
177         dialogBuilder.setPositiveButton(R.string.proceed, new DialogInterface.OnClickListener() {
178             @Override
179             public void onClick(DialogInterface dialog, int which) {
180                 sslCertificateErrorListener.onSslErrorProceed();
181             }
182         });
183
184
185         // Create an `AlertDialog` from the `AlertDialog.Builder`.
186         AlertDialog alertDialog = dialogBuilder.create();
187
188         // We have to show the `AlertDialog` before we can modify the content.
189         alertDialog.show();
190
191         // Get handles for the `TextViews`
192         TextView primaryErrorTextView = (TextView) alertDialog.findViewById(R.id.primary_error);
193         TextView urlTextView = (TextView) alertDialog.findViewById(R.id.url_error_dialog);
194         TextView issuedToCNameTextView = (TextView) alertDialog.findViewById(R.id.issued_to_cname_error_dialog);
195         TextView issuedToONameTextView = (TextView) alertDialog.findViewById(R.id.issued_to_oname_error_dialog);
196         TextView issuedToUNameTextView = (TextView) alertDialog.findViewById(R.id.issued_to_uname_error_dialog);
197         TextView issuedByCNameTextView = (TextView) alertDialog.findViewById(R.id.issued_by_cname_error_dialog);
198         TextView issuedByONameTextView = (TextView) alertDialog.findViewById(R.id.issued_by_oname_error_dialog);
199         TextView issuedByUNameTextView = (TextView) alertDialog.findViewById(R.id.issued_by_uname_error_dialog);
200         TextView startDateTextView = (TextView) alertDialog.findViewById(R.id.start_date_error_dialog);
201         TextView endDateTextView = (TextView) alertDialog.findViewById(R.id.end_date_error_dialog);
202
203         // Setup the common strings.
204         String urlLabel = getString(R.string.url_label) + "  ";
205         String cNameLabel = getString(R.string.common_name) + "  ";
206         String oNameLabel = getString(R.string.organization) + "  ";
207         String uNameLabel = getString(R.string.organizational_unit) + "  ";
208         String startDateLabel = getString(R.string.start_date) + "  ";
209         String endDateLabel = getString(R.string.end_date) + "  ";
210
211         // Create a `SpannableStringBuilder` for each `TextView` that needs multiple colors of text.
212         SpannableStringBuilder urlStringBuilder = new SpannableStringBuilder(urlLabel + urlWithError);
213         SpannableStringBuilder issuedToCNameStringBuilder = new SpannableStringBuilder(cNameLabel + issuedToCName);
214         SpannableStringBuilder issuedToONameStringBuilder = new SpannableStringBuilder(oNameLabel + issuedToOName);
215         SpannableStringBuilder issuedToUNameStringBuilder = new SpannableStringBuilder(uNameLabel + issuedToUName);
216         SpannableStringBuilder issuedByCNameStringBuilder = new SpannableStringBuilder(cNameLabel + issuedByCName);
217         SpannableStringBuilder issuedByONameStringBuilder = new SpannableStringBuilder(oNameLabel + issuedByOName);
218         SpannableStringBuilder issuedByUNameStringBuilder = new SpannableStringBuilder(uNameLabel + issuedByUName);
219         SpannableStringBuilder startDateStringBuilder = new SpannableStringBuilder(startDateLabel + startDate);
220         SpannableStringBuilder endDateStringBuilder = new SpannableStringBuilder((endDateLabel + endDate));
221
222         // Create a blue `ForegroundColorSpan`.  We have to use the deprecated `getColor` until API >= 23.
223         @SuppressWarnings("deprecation") ForegroundColorSpan blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.blue_700));
224
225         // Setup the spans to display the certificate information in blue.  `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
226         urlStringBuilder.setSpan(blueColorSpan, urlLabel.length(), urlStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
227         issuedToCNameStringBuilder.setSpan(blueColorSpan, cNameLabel.length(), issuedToCNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
228         issuedToONameStringBuilder.setSpan(blueColorSpan, oNameLabel.length(), issuedToONameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
229         issuedToUNameStringBuilder.setSpan(blueColorSpan, uNameLabel.length(), issuedToUNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
230         issuedByCNameStringBuilder.setSpan(blueColorSpan, cNameLabel.length(), issuedByCNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
231         issuedByONameStringBuilder.setSpan(blueColorSpan, oNameLabel.length(), issuedByONameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
232         issuedByUNameStringBuilder.setSpan(blueColorSpan, uNameLabel.length(), issuedByUNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
233         startDateStringBuilder.setSpan(blueColorSpan, startDateLabel.length(), startDateStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
234         endDateStringBuilder.setSpan(blueColorSpan, endDateLabel.length(), endDateStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
235
236
237         // Display the strings.
238         primaryErrorTextView.setText(primaryError);
239         urlTextView.setText(urlStringBuilder);
240         issuedToCNameTextView.setText(issuedToCNameStringBuilder);
241         issuedToONameTextView.setText(issuedToONameStringBuilder);
242         issuedToUNameTextView.setText(issuedToUNameStringBuilder);
243         issuedByCNameTextView.setText(issuedByCNameStringBuilder);
244         issuedByONameTextView.setText(issuedByONameStringBuilder);
245         issuedByUNameTextView.setText(issuedByUNameStringBuilder);
246         startDateTextView.setText(startDateStringBuilder);
247         endDateTextView.setText(endDateStringBuilder);
248
249         // `onCreateDialog` requires the return of an `AlertDialog`.
250         return alertDialog;
251     }
252 }