1 files changed, 453 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/platform/sql/SQLiteStatement.cpp b/src/3rdparty/webkit/WebCore/platform/sql/SQLiteStatement.cpp
new file mode 100644
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--- /dev/null
+++ b/src/3rdparty/webkit/WebCore/platform/sql/SQLiteStatement.cpp
@@ -0,0 +1,453 @@
+/*
+ * Copyright (C) 2006, 2007, 2008 Apple 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. OR
+ * 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 "SQLiteStatement.h"
+
+#include "Logging.h"
+#include "SQLValue.h"
+#include <sqlite3.h>
+#include <wtf/Assertions.h>
+
+namespace WebCore {
+
+#if SQLITE_VERSION_NUMBER < 3003009
+
+// FIXME: This overload helps us compile with older versions of SQLite 3, but things like quotas will not work.
+static inline int sqlite3_prepare16_v2(sqlite3* db, const void* zSql, int nBytes, sqlite3_stmt** ppStmt, const void** pzTail)
+{
+    return sqlite3_prepare16(db, zSql, nBytes, ppStmt, pzTail);
+}
+
+#endif
+
+SQLiteStatement::SQLiteStatement(SQLiteDatabase& db, const String& sql)
+    : m_database(db)
+    , m_query(sql)
+    , m_statement(0)
+#ifndef NDEBUG
+    , m_isPrepared(false)
+#endif
+{
+}
+
+SQLiteStatement::~SQLiteStatement()
+{
+    finalize();
+}
+
+int SQLiteStatement::prepare()
+{
+    ASSERT(!m_isPrepared);
+    const void* tail;
+    LOG(SQLDatabase, "SQL - prepare - %s", m_query.ascii().data());
+    int error = sqlite3_prepare16_v2(m_database.sqlite3Handle(), m_query.charactersWithNullTermination(), -1, &m_statement, &tail);
+    if (error != SQLITE_OK)
+        LOG(SQLDatabase, "sqlite3_prepare16 failed (%i)\n%s\n%s", error, m_query.ascii().data(), sqlite3_errmsg(m_database.sqlite3Handle()));
+#ifndef NDEBUG
+    m_isPrepared = error == SQLITE_OK;
+#endif
+    return error;
+}
+
+int SQLiteStatement::step()
+{
+    ASSERT(m_isPrepared);
+    if (!m_statement)
+        return SQLITE_OK;
+    LOG(SQLDatabase, "SQL - step - %s", m_query.ascii().data());
+    int error = sqlite3_step(m_statement);
+    if (error != SQLITE_DONE && error != SQLITE_ROW) {
+        LOG(SQLDatabase, "sqlite3_step failed (%i)\nQuery - %s\nError - %s", 
+            error, m_query.ascii().data(), sqlite3_errmsg(m_database.sqlite3Handle()));
+    }
+    return error;
+}
+    
+int SQLiteStatement::finalize()
+{
+#ifndef NDEBUG
+    m_isPrepared = false;
+#endif
+    if (!m_statement)
+        return SQLITE_OK;
+    LOG(SQLDatabase, "SQL - finalize - %s", m_query.ascii().data());
+    int result = sqlite3_finalize(m_statement);
+    m_statement = 0;
+    return result;
+}
+
+int SQLiteStatement::reset() 
+{
+    ASSERT(m_isPrepared);
+    if (!m_statement)
+        return SQLITE_OK;
+    LOG(SQLDatabase, "SQL - reset - %s", m_query.ascii().data());
+    return sqlite3_reset(m_statement);
+}
+
+bool SQLiteStatement::executeCommand()
+{
+    if (!m_statement && prepare() != SQLITE_OK)
+        return false;
+    ASSERT(m_isPrepared);
+    if (step() != SQLITE_DONE) {
+        finalize();
+        return false;
+    }
+    finalize();
+    return true;
+}
+
+bool SQLiteStatement::returnsAtLeastOneResult()
+{
+    if (!m_statement && prepare() != SQLITE_OK)
+        return false;
+    ASSERT(m_isPrepared);
+    if (step() != SQLITE_ROW) {
+        finalize();
+        return false;
+    }
+    finalize();
+    return true;
+
+}
+
+int SQLiteStatement::bindBlob(int index, const void* blob, int size)
+{
+    ASSERT(m_isPrepared);
+    ASSERT(index > 0);
+    ASSERT(static_cast<unsigned>(index) <= bindParameterCount());
+    ASSERT(blob);
+    ASSERT(size >= 0);
+
+    if (!m_statement)
+        return SQLITE_ERROR;
+
+    return sqlite3_bind_blob(m_statement, index, blob, size, SQLITE_TRANSIENT);
+}
+
+int SQLiteStatement::bindText(int index, const String& text)
+{
+    ASSERT(m_isPrepared);
+    ASSERT(index > 0);
+    ASSERT(static_cast<unsigned>(index) <= bindParameterCount());
+
+    // String::characters() returns 0 for the empty string, which SQLite
+    // treats as a null, so we supply a non-null pointer for that case.
+    UChar anyCharacter = 0;
+    const UChar* characters;
+    if (text.isEmpty() && !text.isNull())
+        characters = &anyCharacter;
+    else
+        characters = text.characters();
+
+    return sqlite3_bind_text16(m_statement, index, characters, sizeof(UChar) * text.length(), SQLITE_TRANSIENT);
+}
+
+
+int SQLiteStatement::bindInt64(int index, int64_t integer)
+{
+    ASSERT(m_isPrepared);
+    ASSERT(index > 0);
+    ASSERT(static_cast<unsigned>(index) <= bindParameterCount());
+
+    return sqlite3_bind_int64(m_statement, index, integer);
+}
+
+int SQLiteStatement::bindDouble(int index, double number)
+{
+    ASSERT(m_isPrepared);
+    ASSERT(index > 0);
+    ASSERT(static_cast<unsigned>(index) <= bindParameterCount());
+
+    return sqlite3_bind_double(m_statement, index, number);
+}
+
+int SQLiteStatement::bindNull(int index)
+{
+    ASSERT(m_isPrepared);
+    ASSERT(index > 0);
+    ASSERT(static_cast<unsigned>(index) <= bindParameterCount());
+
+    return sqlite3_bind_null(m_statement, index);
+}
+
+int SQLiteStatement::bindValue(int index, const SQLValue& value)
+{
+    switch (value.type()) {
+        case SQLValue::StringValue:
+            return bindText(index, value.string());
+        case SQLValue::NumberValue:
+            return bindDouble(index, value.number());
+        case SQLValue::NullValue:
+            return bindNull(index);
+    }
+
+    ASSERT_NOT_REACHED();
+    return SQLITE_ERROR;
+}
+
+unsigned SQLiteStatement::bindParameterCount() const
+{
+    ASSERT(m_isPrepared);
+    if (!m_statement)
+        return 0;
+    return sqlite3_bind_parameter_count(m_statement);
+}
+
+int SQLiteStatement::columnCount()
+{
+    ASSERT(m_isPrepared);
+    if (!m_statement)
+        return 0;
+    return sqlite3_data_count(m_statement);
+}
+
+String SQLiteStatement::getColumnName(int col)
+{
+    ASSERT(col >= 0);
+    if (!m_statement)
+        if (prepareAndStep() != SQLITE_ROW)
+            return String();
+    if (columnCount() <= col)
+        return String();
+    return String(reinterpret_cast<const UChar*>(sqlite3_column_name16(m_statement, col)));
+}
+
+SQLValue SQLiteStatement::getColumnValue(int col)
+{
+    ASSERT(col >= 0);
+    if (!m_statement)
+        if (prepareAndStep() != SQLITE_ROW)
+            return SQLValue();
+    if (columnCount() <= col)
+        return SQLValue();
+
+    // SQLite is typed per value. optional column types are
+    // "(mostly) ignored"
+    sqlite3_value* value = sqlite3_column_value(m_statement, col);
+    switch (sqlite3_value_type(value)) {
+        case SQLITE_INTEGER:    // SQLValue and JS don't represent integers, so use FLOAT -case
+        case SQLITE_FLOAT:
+            return SQLValue(sqlite3_value_double(value));
+        case SQLITE_BLOB:       // SQLValue and JS don't represent blobs, so use TEXT -case
+        case SQLITE_TEXT:
+            return SQLValue(String(reinterpret_cast<const UChar*>(sqlite3_value_text16(value))));
+        case SQLITE_NULL:
+            return SQLValue();
+        default:
+            break;
+    }
+    ASSERT_NOT_REACHED();
+    return SQLValue();
+}
+
+String SQLiteStatement::getColumnText(int col)
+{
+    ASSERT(col >= 0);
+    if (!m_statement)
+        if (prepareAndStep() != SQLITE_ROW)
+            return String();
+    if (columnCount() <= col)
+        return String();
+    return String(reinterpret_cast<const UChar*>(sqlite3_column_text16(m_statement, col)));
+}
+    
+double SQLiteStatement::getColumnDouble(int col)
+{
+    ASSERT(col >= 0);
+    if (!m_statement)
+        if (prepareAndStep() != SQLITE_ROW)
+            return 0.0;
+    if (columnCount() <= col)
+        return 0.0;
+    return sqlite3_column_double(m_statement, col);
+}
+
+int SQLiteStatement::getColumnInt(int col)
+{
+    ASSERT(col >= 0);
+    if (!m_statement)
+        if (prepareAndStep() != SQLITE_ROW)
+            return 0;
+    if (columnCount() <= col)
+        return 0;
+    return sqlite3_column_int(m_statement, col);
+}
+
+int64_t SQLiteStatement::getColumnInt64(int col)
+{
+    ASSERT(col >= 0);
+    if (!m_statement)
+        if (prepareAndStep() != SQLITE_ROW)
+            return 0;
+    if (columnCount() <= col)
+        return 0;
+    return sqlite3_column_int64(m_statement, col);
+}
+    
+void SQLiteStatement::getColumnBlobAsVector(int col, Vector<char>& result)
+{
+    ASSERT(col >= 0);
+
+    if (!m_statement && prepareAndStep() != SQLITE_ROW) {
+        result.clear();
+        return;
+    }
+
+    if (columnCount() <= col) {
+        result.clear();
+        return;
+    }
+
+    const void* blob = sqlite3_column_blob(m_statement, col);
+    if (!blob) {
+        result.clear();
+        return;
+    }
+        
+    int size = sqlite3_column_bytes(m_statement, col);
+    result.resize((size_t)size);
+    for (int i = 0; i < size; ++i)
+        result[i] = ((const unsigned char*)blob)[i];
+}
+
+const void* SQLiteStatement::getColumnBlob(int col, int& size)
+{
+    ASSERT(col >= 0);
+
+    size = 0;
+
+    if (finalize() != SQLITE_OK)
+        LOG(SQLDatabase, "Finalize failed");
+    if (prepare() != SQLITE_OK) {
+        LOG(SQLDatabase, "Prepare failed");
+        return 0;
+    }
+    if (step() != SQLITE_ROW) {
+        LOG(SQLDatabase, "Step wasn't a row");
+        return 0;
+    }
+
+    if (columnCount() <= col)
+        return 0;
+        
+    const void* blob = sqlite3_column_blob(m_statement, col);
+    if (!blob)
+        return 0;
+
+    size = sqlite3_column_bytes(m_statement, col);
+    return blob;
+}
+
+bool SQLiteStatement::returnTextResults(int col, Vector<String>& v)
+{
+    ASSERT(col >= 0);
+
+    v.clear();
+
+    if (m_statement)
+        finalize();
+    if (prepare() != SQLITE_OK)
+        return false;
+
+    while (step() == SQLITE_ROW)
+        v.append(getColumnText(col));
+    bool result = true;
+    if (m_database.lastError() != SQLITE_DONE) {
+        result = false;
+        LOG(SQLDatabase, "Error reading results from database query %s", m_query.ascii().data());
+    }
+    finalize();
+    return result;
+}
+
+bool SQLiteStatement::returnIntResults(int col, Vector<int>& v)
+{
+    v.clear();
+
+    if (m_statement)
+        finalize();
+    if (prepare() != SQLITE_OK)
+        return false;
+        
+    while (step() == SQLITE_ROW)
+        v.append(getColumnInt(col));
+    bool result = true;
+    if (m_database.lastError() != SQLITE_DONE) {
+        result = false;
+        LOG(SQLDatabase, "Error reading results from database query %s", m_query.ascii().data());
+    }
+    finalize();
+    return result;
+}
+
+bool SQLiteStatement::returnInt64Results(int col, Vector<int64_t>& v)
+{
+    v.clear();
+
+    if (m_statement)
+        finalize();
+    if (prepare() != SQLITE_OK)
+        return false;
+        
+    while (step() == SQLITE_ROW)
+        v.append(getColumnInt64(col));
+    bool result = true;
+    if (m_database.lastError() != SQLITE_DONE) {
+        result = false;
+        LOG(SQLDatabase, "Error reading results from database query %s", m_query.ascii().data());
+    }
+    finalize();
+    return result;
+}
+
+bool SQLiteStatement::returnDoubleResults(int col, Vector<double>& v)
+{
+    v.clear();
+
+    if (m_statement)
+        finalize();
+    if (prepare() != SQLITE_OK)
+        return false;
+
+    while (step() == SQLITE_ROW)
+        v.append(getColumnDouble(col));
+    bool result = true;
+    if (m_database.lastError() != SQLITE_DONE) {
+        result = false;
+        LOG(SQLDatabase, "Error reading results from database query %s", m_query.ascii().data());
+    }
+    finalize();
+    return result;
+}
+
+bool SQLiteStatement::isExpired()
+{
+    return !m_statement || sqlite3_expired(m_statement);
+}
+
+} // namespace WebCore