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// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT HOLDER 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.
package jodd.json;
import jodd.introspector.ClassDescriptor;
import jodd.introspector.ClassIntrospector;
import jodd.introspector.CtorDescriptor;
import jodd.introspector.PropertyDescriptor;
import jodd.introspector.Setter;
import jodd.typeconverter.TypeConverterManager;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Supplier;
/**
* Just a base class of {@link jodd.json.JsonParser} that contains
* various utilities, to reduce the size of a parser.
*/
public abstract class JsonParserBase {
protected static final Supplier<Map> HASMAP_SUPPLIER = LinkedHashMap::new;
protected static final Supplier<Map> LAZYMAP_SUPPLIER = LazyMap::new;
protected static final Supplier<List> ARRAYLIST_SUPPLIER = ArrayList::new;
protected static final Supplier<List> LAZYLIST_SUPPLIER = LazyList::new;
protected Supplier<Map> mapSupplier = HASMAP_SUPPLIER;
protected Supplier<List> listSupplier = ARRAYLIST_SUPPLIER;
// BUG: CWE-502 Deserialization of Untrusted Data
//
// FIXED:
protected List<String> classnameWhitelist;
/**
* Creates new instance of {@link jodd.json.MapToBean}.
*/
protected MapToBean createMapToBean(final String classMetadataName) {
return new MapToBean(this, classMetadataName);
}
// ---------------------------------------------------------------- object tools
/**
* Creates new type for JSON array objects.
* It returns a collection.
* Later, the collection will be converted into the target type.
*/
@SuppressWarnings("unchecked")
protected Collection<Object> newArrayInstance(final Class targetType) {
if (targetType == null ||
targetType == List.class ||
targetType == Collection.class ||
targetType.isArray()) {
return listSupplier.get();
}
if (targetType == Set.class) {
return new HashSet<>();
}
try {
return (Collection<Object>) targetType.getDeclaredConstructor().newInstance();
} catch (Exception e) {
throw new JsonException(e);
}
}
/**
* Creates new object or a <code>HashMap</code> if type is not specified.
*/
protected Object newObjectInstance(final Class targetType) {
if (targetType == null ||
targetType == Map.class) {
return mapSupplier.get();
}
ClassDescriptor cd = ClassIntrospector.get().lookup(targetType);
CtorDescriptor ctorDescriptor = cd.getDefaultCtorDescriptor(true);
if (ctorDescriptor == null) {
throw new JsonException("Default ctor not found for: " + targetType.getName());
}
try {
// return ClassUtil.newInstance(targetType);
return ctorDescriptor.getConstructor().newInstance();
} catch (Exception e) {
throw new JsonException(e);
}
}
/**
* Injects value into the targets property.
*/
protected void injectValueIntoObject(final Object target, final PropertyDescriptor pd, final Object value) {
Object convertedValue = value;
if (value != null) {
Class targetClass = pd.getType();
convertedValue = convertType(value, targetClass);
}
try {
Setter setter = pd.getSetter(true);
if (setter != null) {
setter.invokeSetter(target, convertedValue);
}
} catch (Exception ex) {
throw new JsonException(ex);
}
}
/**
* Converts type of the given value.
*/
protected Object convertType(final Object value, final Class targetType) {
Class valueClass = value.getClass();
if (valueClass == targetType) {
return value;
}
try {
return TypeConverterManager.get().convertType(value, targetType);
}
catch (Exception ex) {
throw new JsonException("Type conversion failed", ex);
}
}
} |