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Force Nameprepping of JID domain parts

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The IDN.toAscii()/IDN.toUnicode() family only namepreps the original
domain passed to it if it contained non-ASCII characters. This means
that for all-ASCII domains, no canonicalization is performed, which
leads to issues like case-sensitivity. This workaround explicitly
namepreps domain parts before calling IDN.toAscii() on them, in order to
get a canonicalized representation (most notably, case invariance). A
basic DB migration is also included.
This commit is contained in:
Andreas Straub 2015-05-14 15:25:52 +02:00
parent 8dfa701043
commit b69ee7125d
2 changed files with 96 additions and 4 deletions
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87
src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java
View file

@ -4,11 +4,13 @@ import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.Contact;
import eu.siacs.conversations.entities.Conversation;
import eu.siacs.conversations.entities.Message;
import eu.siacs.conversations.entities.Roster;
import eu.siacs.conversations.xmpp.jid.InvalidJidException;
import eu.siacs.conversations.xmpp.jid.Jid;
import android.content.Context;
@ -16,13 +18,14 @@ import android.database.Cursor;
import android.database.sqlite.SQLiteCantOpenDatabaseException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
public class DatabaseBackend extends SQLiteOpenHelper {
private static DatabaseBackend instance = null;
private static final String DATABASE_NAME = "history";
private static final int DATABASE_VERSION = 13;
private static final int DATABASE_VERSION = 14;
private static String CREATE_CONTATCS_STATEMENT = "create table "
+ Contact.TABLENAME + "(" + Contact.ACCOUNT + " TEXT, "
@ -130,6 +133,88 @@ public class DatabaseBackend extends SQLiteOpenHelper {
db.execSQL("delete from "+Contact.TABLENAME);
db.execSQL("update "+Account.TABLENAME+" set "+Account.ROSTERVERSION+" = NULL");
}
if (oldVersion < 14 && newVersion >= 14) {
// migrate db to new, canonicalized JID domainpart representation
// Conversation table
Cursor cursor = db.rawQuery("select * from " + Conversation.TABLENAME, new String[0]);
while(cursor.moveToNext()) {
String newJid;
try {
newJid = Jid.fromString(
cursor.getString(cursor.getColumnIndex(Conversation.CONTACTJID))
).toString();
} catch (InvalidJidException ignored) {
Log.e(Config.LOGTAG, "Failed to migrate Conversation CONTACTJID "
+cursor.getString(cursor.getColumnIndex(Conversation.CONTACTJID))
+": " + ignored +". Skipping...");
continue;
}
String updateArgs[] = {
newJid,
cursor.getString(cursor.getColumnIndex(Conversation.UUID)),
};
db.execSQL("update " + Conversation.TABLENAME
+ " set " + Conversation.CONTACTJID + " = ? "
+ " where " + Conversation.UUID + " = ?", updateArgs);
}
cursor.close();
// Contact table
cursor = db.rawQuery("select * from " + Contact.TABLENAME, new String[0]);
while(cursor.moveToNext()) {
String newJid;
try {
newJid = Jid.fromString(
cursor.getString(cursor.getColumnIndex(Contact.JID))
).toString();
} catch (InvalidJidException ignored) {
Log.e(Config.LOGTAG, "Failed to migrate Contact JID "
+cursor.getString(cursor.getColumnIndex(Contact.JID))
+": " + ignored +". Skipping...");
continue;
}
String updateArgs[] = {
newJid,
cursor.getString(cursor.getColumnIndex(Contact.ACCOUNT)),
cursor.getString(cursor.getColumnIndex(Contact.JID)),
};
db.execSQL("update " + Contact.TABLENAME
+ " set " + Contact.JID + " = ? "
+ " where " + Contact.ACCOUNT + " = ? "
+ " AND " + Contact.JID + " = ?", updateArgs);
}
cursor.close();
// Account table
cursor = db.rawQuery("select * from " + Account.TABLENAME, new String[0]);
while(cursor.moveToNext()) {
String newServer;
try {
newServer = Jid.fromParts(
cursor.getString(cursor.getColumnIndex(Account.USERNAME)),
cursor.getString(cursor.getColumnIndex(Account.SERVER)),
"mobile"
).getDomainpart();
} catch (InvalidJidException ignored) {
Log.e(Config.LOGTAG, "Failed to migrate Account SERVER "
+cursor.getString(cursor.getColumnIndex(Account.SERVER))
+": " + ignored +". Skipping...");
continue;
}
String updateArgs[] = {
newServer,
cursor.getString(cursor.getColumnIndex(Account.UUID)),
};
db.execSQL("update " + Account.TABLENAME
+ " set " + Account.SERVER + " = ? "
+ " where " + Account.UUID + " = ?", updateArgs);
}
cursor.close();
}
}
public static synchronized DatabaseBackend getInstance(Context context) {

13
src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java
View file

@ -130,12 +130,19 @@ public final class Jid {
if (resourcepart.isEmpty() || resourcepart.length() > 1023) {
throw new InvalidJidException(InvalidJidException.INVALID_PART_LENGTH);
}
dp = IDN.toUnicode(jid.substring(domainpartStart, slashLoc), IDN.USE_STD3_ASCII_RULES);
try {
dp = IDN.toUnicode(Stringprep.nameprep(jid.substring(domainpartStart, slashLoc)), IDN.USE_STD3_ASCII_RULES);
} catch (final StringprepException e) {
throw new InvalidJidException(InvalidJidException.STRINGPREP_FAIL, e);
}
finaljid = finaljid + dp + "/" + rp;
} else {
resourcepart = "";
dp = IDN.toUnicode(jid.substring(domainpartStart, jid.length()),
IDN.USE_STD3_ASCII_RULES);
try{
dp = IDN.toUnicode(Stringprep.nameprep(jid.substring(domainpartStart, jid.length())), IDN.USE_STD3_ASCII_RULES);
} catch (final StringprepException e) {
throw new InvalidJidException(InvalidJidException.STRINGPREP_FAIL, e);
}
finaljid = finaljid + dp;
}