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Code Issues Releases Wiki Activity

Remove abandoned contacts

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This commit is contained in:
mar-v-in 2014-06-18 16:47:33 +02:00
parent 39a68c30f8
commit 4bbaf6faa1
1 changed files with 90 additions and 26 deletions
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116
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/ContactHelper.java
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@ -45,9 +45,18 @@ public class ContactHelper {
public static final String[] USER_IDS_PROJECTION = new String[]{
KeychainContract.UserIds.USER_ID
};
public static final String[] RAW_CONTACT_ID_PROJECTION = new String[]{ContactsContract.RawContacts._ID};
public static final String FIND_RAW_CONTACT_SELECTION =
public static final String NON_REVOKED_SELECTION = KeychainContract.UserIds.IS_REVOKED + "=0";
public static final String[] ID_PROJECTION = new String[]{ContactsContract.RawContacts._ID};
public static final String[] SOURCE_ID_PROJECTION = new String[]{ContactsContract.RawContacts.SOURCE_ID};
public static final String ACCOUNT_TYPE_AND_SOURCE_ID_SELECTION =
ContactsContract.RawContacts.ACCOUNT_TYPE + "=? AND " + ContactsContract.RawContacts.SOURCE_ID + "=?";
public static final String ACCOUNT_TYPE_SELECTION = ContactsContract.RawContacts.ACCOUNT_TYPE + "=?";
public static final String RAW_CONTACT_AND_MIMETYPE_SELECTION =
ContactsContract.Data.RAW_CONTACT_ID + "=? AND " + ContactsContract.Data.MIMETYPE + "=?";
public static final String ID_SELECTION = ContactsContract.RawContacts._ID + "=?";
public static List<String> getMailAccounts(Context context) {
final Account[] accounts = AccountManager.get(context).getAccounts();
@ -90,45 +99,44 @@ public class ContactHelper {
return null;
}
private static ContentProviderOperation.Builder referenceRawContact(ContentProviderOperation.Builder builder,
int rawContactId) {
return rawContactId == -1 ?
builder.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0) :
builder.withValue(ContactsContract.Data.RAW_CONTACT_ID, rawContactId);
}
/**
* Write the current Keychain to the contact db
*/
public static void writeKeysToContacts(Context context) {
ContentResolver resolver = context.getContentResolver();
Set<String> contactFingerprints = getRawContactFingerprints(resolver);
// Load all Keys from OK
Cursor cursor = resolver.query(KeychainContract.KeyRings.buildUnifiedKeyRingsUri(), KEYS_TO_CONTACT_PROJECTION,
null, null, null);
if (cursor != null) {
while (cursor.moveToNext()) {
String[] primaryUserId = KeyRing.splitUserId(cursor.getString(0));
String fingerprint = PgpKeyHelper.convertFingerprintToHex(cursor.getBlob(1));
contactFingerprints.remove(fingerprint);
String keyIdShort = PgpKeyHelper.convertKeyIdToHexShort(cursor.getLong(2));
long masterKeyId = cursor.getLong(3);
boolean isExpired = !cursor.isNull(4) && new Date(cursor.getLong(4) * 1000).before(new Date());
boolean isRevoked = cursor.getInt(5) > 0;
int rawContactId = -1;
Cursor raw = resolver.query(ContactsContract.RawContacts.CONTENT_URI, RAW_CONTACT_ID_PROJECTION,
FIND_RAW_CONTACT_SELECTION, new String[]{Constants.PACKAGE_NAME, fingerprint}, null, null);
if (raw != null) {
if (raw.moveToNext()) {
rawContactId = raw.getInt(0);
}
raw.close();
}
int rawContactId = findRawContactId(resolver, fingerprint);
ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>();
// Do not store expired or revoked keys in contact db - and remove them if they already exist
if (isExpired || isRevoked) {
if (rawContactId != -1) {
resolver.delete(ContactsContract.RawContacts.CONTENT_URI,
ContactsContract.RawContacts._ID + "=?", new String[]{Integer.toString(rawContactId)});
resolver.delete(ContactsContract.RawContacts.CONTENT_URI, ID_SELECTION,
new String[]{Integer.toString(rawContactId)});
}
} else {
// Create a new rawcontact with corresponding key if it does not exist yet
if (rawContactId == -1) {
insertContact(ops, context, fingerprint);
writeContactKey(ops, context, rawContactId, masterKeyId, keyIdShort);
}
// We always update the display name (which is derived from primary user id)
// and email addresses from user id
writeContactDisplayName(ops, rawContactId, primaryUserId[0]);
writeContactEmail(ops, resolver, rawContactId, masterKeyId);
try {
@ -140,8 +148,52 @@ public class ContactHelper {
}
cursor.close();
}
// Delete fingerprints that are no longer present in OK
for (String fingerprint : contactFingerprints) {
resolver.delete(ContactsContract.RawContacts.CONTENT_URI, ACCOUNT_TYPE_AND_SOURCE_ID_SELECTION,
new String[]{Constants.PACKAGE_NAME, fingerprint});
}
}
/**
* @return a set of all key fingerprints currently present in the contact db
*/
private static Set<String> getRawContactFingerprints(ContentResolver resolver) {
HashSet<String> result = new HashSet<String>();
Cursor fingerprints = resolver.query(ContactsContract.RawContacts.CONTENT_URI, SOURCE_ID_PROJECTION,
ACCOUNT_TYPE_SELECTION, new String[]{Constants.PACKAGE_NAME}, null);
if (fingerprints != null) {
while (fingerprints.moveToNext()) {
result.add(fingerprints.getString(0));
}
fingerprints.close();
}
return result;
}
/**
* This will search the contact db for a raw contact with a given fingerprint
*
* @return raw contact id or -1 if not found
*/
private static int findRawContactId(ContentResolver resolver, String fingerprint) {
int rawContactId = -1;
Cursor raw = resolver.query(ContactsContract.RawContacts.CONTENT_URI, ID_PROJECTION,
ACCOUNT_TYPE_AND_SOURCE_ID_SELECTION, new String[]{Constants.PACKAGE_NAME, fingerprint}, null, null);
if (raw != null) {
if (raw.moveToNext()) {
rawContactId = raw.getInt(0);
}
raw.close();
}
return rawContactId;
}
/**
* Creates a empty raw contact with a given fingerprint
*/
private static void insertContact(ArrayList<ContentProviderOperation> ops, Context context, String fingerprint) {
ops.add(ContentProviderOperation.newInsert(ContactsContract.RawContacts.CONTENT_URI)
.withValue(ContactsContract.RawContacts.ACCOUNT_NAME, context.getString(R.string.app_name))
@ -150,6 +202,11 @@ public class ContactHelper {
.build());
}
/**
* Adds a key id to the given raw contact.
* <p/>
* This creates the link to OK in contact details
*/
private static void writeContactKey(ArrayList<ContentProviderOperation> ops, Context context, int rawContactId,
long masterKeyId, String keyIdShort) {
ops.add(referenceRawContact(ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI), rawContactId)
@ -159,12 +216,15 @@ public class ContactHelper {
.build());
}
/**
* Write all known email addresses of a key (derived from user ids) to a given raw contact
*/
private static void writeContactEmail(ArrayList<ContentProviderOperation> ops, ContentResolver resolver,
int rawContactId, long masterKeyId) {
ops.add(selectByRawContactAndItemType(ContentProviderOperation.newDelete(ContactsContract.Data.CONTENT_URI),
rawContactId, ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE).build());
Cursor ids = resolver.query(KeychainContract.UserIds.buildUserIdsUri(Long.toString(masterKeyId)),
USER_IDS_PROJECTION, KeychainContract.UserIds.IS_REVOKED + "=0", null, null);
USER_IDS_PROJECTION, NON_REVOKED_SELECTION, null, null);
if (ids != null) {
while (ids.moveToNext()) {
String[] userId = KeyRing.splitUserId(ids.getString(0));
@ -191,22 +251,26 @@ public class ContactHelper {
}
}
private static ContentProviderOperation.Builder referenceRawContact(ContentProviderOperation.Builder builder,
int rawContactId) {
return rawContactId == -1 ?
builder.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0) :
builder.withValue(ContactsContract.Data.RAW_CONTACT_ID, rawContactId);
}
private static ContentProviderOperation.Builder insertOrUpdateForRawContact(Uri uri, int rawContactId,
String itemType) {
if (rawContactId == -1) {
return referenceRawContact(ContentProviderOperation.newInsert(uri), rawContactId).withValue(
ContactsContract.Data.MIMETYPE, itemType);
} else {
return ContentProviderOperation.newUpdate(uri).withSelection(
ContactsContract.Data.RAW_CONTACT_ID + "=? AND " + ContactsContract.Data.MIMETYPE + "=?",
new String[]{Integer.toString(rawContactId), itemType});
return selectByRawContactAndItemType(ContentProviderOperation.newUpdate(uri), rawContactId, itemType);
}
}
private static ContentProviderOperation.Builder selectByRawContactAndItemType(
ContentProviderOperation.Builder builder, int rawContactId, String itemType) {
return builder.withSelection(
ContactsContract.Data.RAW_CONTACT_ID + "=? AND " + ContactsContract.Data.MIMETYPE + "=?",
return builder.withSelection(RAW_CONTACT_AND_MIMETYPE_SELECTION,
new String[]{Integer.toString(rawContactId), itemType});
}
}