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1 /*
2  * Copyright (C) 2006 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.internal.telephony;
18 
19 import android.content.ContentProvider;
20 import android.content.UriMatcher;
21 import android.content.ContentValues;
22 import android.database.Cursor;
23 import android.database.MatrixCursor;
24 import android.net.Uri;
25 import android.os.RemoteException;
26 import android.os.ServiceManager;
27 import android.text.TextUtils;
28 import android.telephony.Rlog;
29 
30 import java.util.List;
31 
32 import com.android.internal.telephony.IIccPhoneBook;
33 import com.android.internal.telephony.uicc.AdnRecord;
34 import com.android.internal.telephony.uicc.IccConstants;
35 
36 
37 /**
38  * {@hide}
39  */
40 public class IccProvider extends ContentProvider {
41     private static final String TAG = "IccProvider";
42     private static final boolean DBG = false;
43 
44 
45     private static final String[] ADDRESS_BOOK_COLUMN_NAMES = new String[] {
46         "name",
47         "number",
48         "emails",
49         "_id"
50     };
51 
52     private static final int ADN = 1;
53     private static final int FDN = 2;
54     private static final int SDN = 3;
55 
56     private static final String STR_TAG = "tag";
57     private static final String STR_NUMBER = "number";
58     private static final String STR_EMAILS = "emails";
59     private static final String STR_PIN2 = "pin2";
60 
61     private static final UriMatcher URL_MATCHER =
62                             new UriMatcher(UriMatcher.NO_MATCH);
63 
64     static {
65         URL_MATCHER.addURI("icc", "adn", ADN);
66         URL_MATCHER.addURI("icc", "fdn", FDN);
67         URL_MATCHER.addURI("icc", "sdn", SDN);
68     }
69 
70 
71     @Override
onCreate()72     public boolean onCreate() {
73         return true;
74     }
75 
76     @Override
query(Uri url, String[] projection, String selection, String[] selectionArgs, String sort)77     public Cursor query(Uri url, String[] projection, String selection,
78             String[] selectionArgs, String sort) {
79         switch (URL_MATCHER.match(url)) {
80             case ADN:
81                 return loadFromEf(IccConstants.EF_ADN);
82 
83             case FDN:
84                 return loadFromEf(IccConstants.EF_FDN);
85 
86             case SDN:
87                 return loadFromEf(IccConstants.EF_SDN);
88 
89             default:
90                 throw new IllegalArgumentException("Unknown URL " + url);
91         }
92     }
93 
94     @Override
getType(Uri url)95     public String getType(Uri url) {
96         switch (URL_MATCHER.match(url)) {
97             case ADN:
98             case FDN:
99             case SDN:
100                 return "vnd.android.cursor.dir/sim-contact";
101 
102             default:
103                 throw new IllegalArgumentException("Unknown URL " + url);
104         }
105     }
106 
107     @Override
insert(Uri url, ContentValues initialValues)108     public Uri insert(Uri url, ContentValues initialValues) {
109         Uri resultUri;
110         int efType;
111         String pin2 = null;
112 
113         if (DBG) log("insert");
114 
115         int match = URL_MATCHER.match(url);
116         switch (match) {
117             case ADN:
118                 efType = IccConstants.EF_ADN;
119                 break;
120 
121             case FDN:
122                 efType = IccConstants.EF_FDN;
123                 pin2 = initialValues.getAsString("pin2");
124                 break;
125 
126             default:
127                 throw new UnsupportedOperationException(
128                         "Cannot insert into URL: " + url);
129         }
130 
131         String tag = initialValues.getAsString("tag");
132         String number = initialValues.getAsString("number");
133         // TODO(): Read email instead of sending null.
134         boolean success = addIccRecordToEf(efType, tag, number, null, pin2);
135 
136         if (!success) {
137             return null;
138         }
139 
140         StringBuilder buf = new StringBuilder("content://icc/");
141         switch (match) {
142             case ADN:
143                 buf.append("adn/");
144                 break;
145 
146             case FDN:
147                 buf.append("fdn/");
148                 break;
149         }
150 
151         // TODO: we need to find out the rowId for the newly added record
152         buf.append(0);
153 
154         resultUri = Uri.parse(buf.toString());
155 
156         /*
157         // notify interested parties that an insertion happened
158         getContext().getContentResolver().notifyInsert(
159                 resultUri, rowID, null);
160         */
161 
162         return resultUri;
163     }
164 
normalizeValue(String inVal)165     private String normalizeValue(String inVal) {
166         int len = inVal.length();
167         String retVal = inVal;
168 
169         if (inVal.charAt(0) == '\'' && inVal.charAt(len-1) == '\'') {
170             retVal = inVal.substring(1, len-1);
171         }
172 
173         return retVal;
174     }
175 
176     @Override
delete(Uri url, String where, String[] whereArgs)177     public int delete(Uri url, String where, String[] whereArgs) {
178         int efType;
179 
180         if (DBG) log("delete");
181 
182         int match = URL_MATCHER.match(url);
183         switch (match) {
184             case ADN:
185                 efType = IccConstants.EF_ADN;
186                 break;
187 
188             case FDN:
189                 efType = IccConstants.EF_FDN;
190                 break;
191 
192             default:
193                 throw new UnsupportedOperationException(
194                         "Cannot insert into URL: " + url);
195         }
196 
197         // parse where clause
198         String tag = null;
199         String number = null;
200         String[] emails = null;
201         String pin2 = null;
202 
203         String[] tokens = where.split("AND");
204         int n = tokens.length;
205 
206         while (--n >= 0) {
207             String param = tokens[n];
208             if (DBG) log("parsing '" + param + "'");
209 
210             String[] pair = param.split("=", 2);
211 
212             String key = pair[0].trim();
213             String val = pair[1].trim();
214 
215             if (STR_TAG.equals(key)) {
216                 tag = normalizeValue(val);
217             } else if (STR_NUMBER.equals(key)) {
218                 number = normalizeValue(val);
219             } else if (STR_EMAILS.equals(key)) {
220                 //TODO(): Email is null.
221                 emails = null;
222             } else if (STR_PIN2.equals(key)) {
223                 pin2 = normalizeValue(val);
224             }
225         }
226 
227         if (TextUtils.isEmpty(number)) {
228             return 0;
229         }
230 
231         if (efType == IccConstants.EF_FDN && TextUtils.isEmpty(pin2)) {
232             return 0;
233         }
234 
235         boolean success = deleteIccRecordFromEf(efType, tag, number, emails, pin2);
236         if (!success) {
237             return 0;
238         }
239 
240         return 1;
241     }
242 
243     @Override
update(Uri url, ContentValues values, String where, String[] whereArgs)244     public int update(Uri url, ContentValues values, String where, String[] whereArgs) {
245         int efType;
246         String pin2 = null;
247 
248         if (DBG) log("update");
249 
250         int match = URL_MATCHER.match(url);
251         switch (match) {
252             case ADN:
253                 efType = IccConstants.EF_ADN;
254                 break;
255 
256             case FDN:
257                 efType = IccConstants.EF_FDN;
258                 pin2 = values.getAsString("pin2");
259                 break;
260 
261             default:
262                 throw new UnsupportedOperationException(
263                         "Cannot insert into URL: " + url);
264         }
265 
266         String tag = values.getAsString("tag");
267         String number = values.getAsString("number");
268         String[] emails = null;
269         String newTag = values.getAsString("newTag");
270         String newNumber = values.getAsString("newNumber");
271         String[] newEmails = null;
272         // TODO(): Update for email.
273         boolean success = updateIccRecordInEf(efType, tag, number,
274                 newTag, newNumber, pin2);
275 
276         if (!success) {
277             return 0;
278         }
279 
280         return 1;
281     }
282 
loadFromEf(int efType)283     private MatrixCursor loadFromEf(int efType) {
284         if (DBG) log("loadFromEf: efType=" + efType);
285 
286         List<AdnRecord> adnRecords = null;
287         try {
288             IIccPhoneBook iccIpb = IIccPhoneBook.Stub.asInterface(
289                     ServiceManager.getService("simphonebook"));
290             if (iccIpb != null) {
291                 adnRecords = iccIpb.getAdnRecordsInEf(efType);
292             }
293         } catch (RemoteException ex) {
294             // ignore it
295         } catch (SecurityException ex) {
296             if (DBG) log(ex.toString());
297         }
298 
299         if (adnRecords != null) {
300             // Load the results
301             final int N = adnRecords.size();
302             final MatrixCursor cursor = new MatrixCursor(ADDRESS_BOOK_COLUMN_NAMES, N);
303             if (DBG) log("adnRecords.size=" + N);
304             for (int i = 0; i < N ; i++) {
305                 loadRecord(adnRecords.get(i), cursor, i);
306             }
307             return cursor;
308         } else {
309             // No results to load
310             Rlog.w(TAG, "Cannot load ADN records");
311             return new MatrixCursor(ADDRESS_BOOK_COLUMN_NAMES);
312         }
313     }
314 
315     private boolean
addIccRecordToEf(int efType, String name, String number, String[] emails, String pin2)316     addIccRecordToEf(int efType, String name, String number, String[] emails, String pin2) {
317         if (DBG) log("addIccRecordToEf: efType=" + efType + ", name=" + name +
318                 ", number=" + number + ", emails=" + emails);
319 
320         boolean success = false;
321 
322         // TODO: do we need to call getAdnRecordsInEf() before calling
323         // updateAdnRecordsInEfBySearch()? In any case, we will leave
324         // the UI level logic to fill that prereq if necessary. But
325         // hopefully, we can remove this requirement.
326 
327         try {
328             IIccPhoneBook iccIpb = IIccPhoneBook.Stub.asInterface(
329                     ServiceManager.getService("simphonebook"));
330             if (iccIpb != null) {
331                 success = iccIpb.updateAdnRecordsInEfBySearch(efType, "", "",
332                         name, number, pin2);
333             }
334         } catch (RemoteException ex) {
335             // ignore it
336         } catch (SecurityException ex) {
337             if (DBG) log(ex.toString());
338         }
339         if (DBG) log("addIccRecordToEf: " + success);
340         return success;
341     }
342 
343     private boolean
updateIccRecordInEf(int efType, String oldName, String oldNumber, String newName, String newNumber, String pin2)344     updateIccRecordInEf(int efType, String oldName, String oldNumber,
345             String newName, String newNumber, String pin2) {
346         if (DBG) log("updateIccRecordInEf: efType=" + efType +
347                 ", oldname=" + oldName + ", oldnumber=" + oldNumber +
348                 ", newname=" + newName + ", newnumber=" + newNumber);
349         boolean success = false;
350 
351         try {
352             IIccPhoneBook iccIpb = IIccPhoneBook.Stub.asInterface(
353                     ServiceManager.getService("simphonebook"));
354             if (iccIpb != null) {
355                 success = iccIpb.updateAdnRecordsInEfBySearch(efType,
356                         oldName, oldNumber, newName, newNumber, pin2);
357             }
358         } catch (RemoteException ex) {
359             // ignore it
360         } catch (SecurityException ex) {
361             if (DBG) log(ex.toString());
362         }
363         if (DBG) log("updateIccRecordInEf: " + success);
364         return success;
365     }
366 
367 
deleteIccRecordFromEf(int efType, String name, String number, String[] emails, String pin2)368     private boolean deleteIccRecordFromEf(int efType, String name, String number, String[] emails,
369             String pin2) {
370         if (DBG) log("deleteIccRecordFromEf: efType=" + efType +
371                 ", name=" + name + ", number=" + number + ", emails=" + emails + ", pin2=" + pin2);
372 
373         boolean success = false;
374 
375         try {
376             IIccPhoneBook iccIpb = IIccPhoneBook.Stub.asInterface(
377                     ServiceManager.getService("simphonebook"));
378             if (iccIpb != null) {
379                 success = iccIpb.updateAdnRecordsInEfBySearch(efType,
380                         name, number, "", "", pin2);
381             }
382         } catch (RemoteException ex) {
383             // ignore it
384         } catch (SecurityException ex) {
385             if (DBG) log(ex.toString());
386         }
387         if (DBG) log("deleteIccRecordFromEf: " + success);
388         return success;
389     }
390 
391     /**
392      * Loads an AdnRecord into a MatrixCursor. Must be called with mLock held.
393      *
394      * @param record the ADN record to load from
395      * @param cursor the cursor to receive the results
396      */
loadRecord(AdnRecord record, MatrixCursor cursor, int id)397     private void loadRecord(AdnRecord record, MatrixCursor cursor, int id) {
398         if (!record.isEmpty()) {
399             Object[] contact = new Object[4];
400             String alphaTag = record.getAlphaTag();
401             String number = record.getNumber();
402 
403             if (DBG) log("loadRecord: " + alphaTag + ", " + number + ",");
404             contact[0] = alphaTag;
405             contact[1] = number;
406 
407             String[] emails = record.getEmails();
408             if (emails != null) {
409                 StringBuilder emailString = new StringBuilder();
410                 for (String email: emails) {
411                     if (DBG) log("Adding email:" + email);
412                     emailString.append(email);
413                     emailString.append(",");
414                 }
415                 contact[2] = emailString.toString();
416             }
417             contact[3] = id;
418             cursor.addRow(contact);
419         }
420     }
421 
log(String msg)422     private void log(String msg) {
423         Rlog.d(TAG, "[IccProvider] " + msg);
424     }
425 
426 }
427