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      1 /*
      2  * Copyright (C) 2007 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include "config.h"
     30 #include "JSSQLTransaction.h"
     31 
     32 #if ENABLE(DATABASE)
     33 
     34 #include "DOMWindow.h"
     35 #include "ExceptionCode.h"
     36 #include "JSCustomSQLStatementCallback.h"
     37 #include "JSCustomSQLStatementErrorCallback.h"
     38 #include "JSDOMWindowCustom.h"
     39 #include "SQLTransaction.h"
     40 
     41 using namespace JSC;
     42 
     43 namespace WebCore {
     44 
     45 JSValue JSSQLTransaction::executeSql(ExecState* exec, const ArgList& args)
     46 {
     47     if (args.isEmpty()) {
     48         setDOMException(exec, SYNTAX_ERR);
     49         return jsUndefined();
     50     }
     51 
     52     String sqlStatement = args.at(0).toString(exec);
     53     if (exec->hadException())
     54         return jsUndefined();
     55 
     56     // Now assemble the list of SQL arguments
     57     Vector<SQLValue> sqlValues;
     58     if (!args.at(1).isUndefinedOrNull()) {
     59         JSObject* object = args.at(1).getObject();
     60         if (!object) {
     61             setDOMException(exec, TYPE_MISMATCH_ERR);
     62             return jsUndefined();
     63         }
     64 
     65         JSValue lengthValue = object->get(exec, exec->propertyNames().length);
     66         if (exec->hadException())
     67             return jsUndefined();
     68         unsigned length = lengthValue.toUInt32(exec);
     69         if (exec->hadException())
     70             return jsUndefined();
     71 
     72         for (unsigned i = 0 ; i < length; ++i) {
     73             JSValue value = object->get(exec, i);
     74             if (exec->hadException())
     75                 return jsUndefined();
     76 
     77             if (value.isNull())
     78                 sqlValues.append(SQLValue());
     79             else if (value.isNumber())
     80                 sqlValues.append(value.uncheckedGetNumber());
     81             else {
     82                 // Convert the argument to a string and append it
     83                 sqlValues.append(value.toString(exec));
     84                 if (exec->hadException())
     85                     return jsUndefined();
     86             }
     87         }
     88     }
     89 
     90     RefPtr<SQLStatementCallback> callback;
     91     if (!args.at(2).isUndefinedOrNull()) {
     92         JSObject* object = args.at(2).getObject();
     93         if (!object) {
     94             setDOMException(exec, TYPE_MISMATCH_ERR);
     95             return jsUndefined();
     96         }
     97 
     98         callback = JSCustomSQLStatementCallback::create(object, static_cast<JSDOMGlobalObject*>(exec->dynamicGlobalObject()));
     99     }
    100 
    101     RefPtr<SQLStatementErrorCallback> errorCallback;
    102     if (!args.at(3).isUndefinedOrNull()) {
    103         JSObject* object = args.at(3).getObject();
    104         if (!object) {
    105             setDOMException(exec, TYPE_MISMATCH_ERR);
    106             return jsUndefined();
    107         }
    108 
    109         errorCallback = JSCustomSQLStatementErrorCallback::create(object, static_cast<JSDOMGlobalObject*>(exec->dynamicGlobalObject()));
    110     }
    111 
    112     ExceptionCode ec = 0;
    113     m_impl->executeSQL(sqlStatement, sqlValues, callback.release(), errorCallback.release(), ec);
    114     setDOMException(exec, ec);
    115 
    116     return jsUndefined();
    117 }
    118 
    119 }
    120 
    121 #endif // ENABLE(DATABASE)
    122