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SQL/ODBC: escape values in connection string

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Values in connection strings must be escaped when they
 - contain a ; -> escape with "
 - start with ' -> escape with "
 - start with " -> escape with '

Fixes: QTBUG-122642
Change-Id: I1df638194067af5df94a34009e1547886fdf928c
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 000d462bf93b21a9bbb46fdba631c09ba3eb9276)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Christian Ehrlicher 2024-02-26 15:18:39 +01:00 committed by Qt Cherry-pick Bot
parent 874f5c1f46
commit 0b5b6e7db2
1 changed files with 17 additions and 5 deletions
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22
src/plugins/sqldrivers/odbc/qsql_odbc.cpp
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@ -1918,6 +1918,18 @@ bool QODBCDriver::open(const QString & db,
int,
const QString& connOpts)
{
const auto ensureEscaped = [](QString arg) -> QString {
QChar quoteChar;
if (arg.startsWith(u'"'))
quoteChar = u'\'';
else if (arg.startsWith(u'\''))
quoteChar = u'"';
else if (arg.contains(u';'))
quoteChar = u'"';
else
return arg;
return quoteChar + arg + quoteChar;
};
Q_D(QODBCDriver);
if (isOpen())
close();
@ -1953,17 +1965,17 @@ bool QODBCDriver::open(const QString & db,
QString connQStr;
// support the "DRIVER={SQL SERVER};SERVER=blah" syntax
if (db.contains(".dsn"_L1, Qt::CaseInsensitive))
connQStr = "FILEDSN="_L1 + db;
connQStr = "FILEDSN="_L1 + ensureEscaped(db);
else if (db.contains("DRIVER="_L1, Qt::CaseInsensitive)
|| db.contains("SERVER="_L1, Qt::CaseInsensitive))
connQStr = db;
connQStr = ensureEscaped(db);
else
connQStr = "DSN="_L1 + db;
connQStr = "DSN="_L1 + ensureEscaped(db);
if (!user.isEmpty())
connQStr += ";UID="_L1 + user;
connQStr += ";UID="_L1 + ensureEscaped(user);
if (!password.isEmpty())
connQStr += ";PWD="_L1 + password;
connQStr += ";PWD="_L1 + ensureEscaped(password);
SQLSMALLINT cb;
QVarLengthArray<SQLTCHAR, 1024> connOut(1024);