webkitgtk-2.4.11webkitgtk-2.4.11

1 files changed, 137 insertions, 0 deletions

diff --git a/Source/WebCore/Modules/webdatabase/SQLStatementSync.cpp b/Source/WebCore/Modules/webdatabase/SQLStatementSync.cpp
new file mode 100644
index 000000000..30ad956e4
--- /dev/null
+++ b/Source/WebCore/Modules/webdatabase/SQLStatementSync.cpp
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2007 Apple Inc. All rights reserved.
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "SQLStatementSync.h"
+
+#if ENABLE(SQL_DATABASE)
+
+#include "DatabaseSync.h"
+#include "SQLException.h"
+#include "SQLResultSet.h"
+#include "SQLValue.h"
+#include "SQLiteDatabase.h"
+#include "SQLiteStatement.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefPtr.h>
+
+namespace WebCore {
+
+SQLStatementSync::SQLStatementSync(const String& statement, const Vector<SQLValue>& arguments, int permissions)
+    : m_statement(statement)
+    , m_arguments(arguments)
+    , m_permissions(permissions)
+{
+    ASSERT(!m_statement.isEmpty());
+}
+
+PassRefPtr<SQLResultSet> SQLStatementSync::execute(DatabaseSync* db, ExceptionCode& ec)
+{
+    db->setAuthorizerPermissions(m_permissions);
+
+    SQLiteDatabase* database = &db->sqliteDatabase();
+
+    SQLiteStatement statement(*database, m_statement);
+    int result = statement.prepare();
+    if (result != SQLResultOk) {
+        ec = (result == SQLResultInterrupt ? SQLException::DATABASE_ERR : SQLException::SYNTAX_ERR);
+        db->setLastErrorMessage("could not prepare statement", result, database->lastErrorMsg());
+        return 0;
+    }
+
+    if (statement.bindParameterCount() != m_arguments.size()) {
+        ec = (db->isInterrupted()? SQLException::DATABASE_ERR : SQLException::SYNTAX_ERR);
+        db->setLastErrorMessage("number of '?'s in statement string does not match argument count");
+        return 0;
+    }
+
+    for (unsigned i = 0; i < m_arguments.size(); ++i) {
+        result = statement.bindValue(i + 1, m_arguments[i]);
+        if (result == SQLResultFull) {
+            ec = SQLException::QUOTA_ERR;
+            db->setLastErrorMessage("there was not enough remaining storage space");
+            return 0;
+        }
+
+        if (result != SQLResultOk) {
+            ec = SQLException::DATABASE_ERR;
+            db->setLastErrorMessage("could not bind value", result, database->lastErrorMsg());
+            return 0;
+        }
+    }
+
+    RefPtr<SQLResultSet> resultSet = SQLResultSet::create();
+
+    // Step so we can fetch the column names.
+    result = statement.step();
+    if (result == SQLResultRow) {
+        int columnCount = statement.columnCount();
+        SQLResultSetRowList* rows = resultSet->rows();
+
+        for (int i = 0; i < columnCount; i++)
+            rows->addColumn(statement.getColumnName(i));
+
+        do {
+            for (int i = 0; i < columnCount; i++)
+                rows->addResult(statement.getColumnValue(i));
+
+            result = statement.step();
+        } while (result == SQLResultRow);
+
+        if (result != SQLResultDone) {
+            ec = SQLException::DATABASE_ERR;
+            db->setLastErrorMessage("could not iterate results", result, database->lastErrorMsg());
+            return 0;
+        }
+    } else if (result == SQLResultDone) {
+        // Didn't find anything, or was an insert.
+        if (db->lastActionWasInsert())
+            resultSet->setInsertId(database->lastInsertRowID());
+    } else if (result == SQLResultFull) {
+        // Quota error, the delegate will be asked for more space and this statement might be re-run.
+        ec = SQLException::QUOTA_ERR;
+        db->setLastErrorMessage("there was not enough remaining storage space");
+        return 0;
+    } else if (result == SQLResultConstraint) {
+        ec = SQLException::CONSTRAINT_ERR;
+        db->setLastErrorMessage("statement failed due to a constraint failure");
+        return 0;
+    } else {
+        ec = SQLException::DATABASE_ERR;
+        db->setLastErrorMessage("could not execute statement", result, database->lastErrorMsg());
+        return 0;
+    }
+
+    resultSet->setRowsAffected(database->lastChanges());
+    return resultSet.release();
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(SQL_DATABASE)