Complete sources for a monero webminer.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

333 lines
12 KiB

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Runtime.Serialization;
using System.Text;
/*
https://github.com/zanders3/json
The MIT License (MIT)
Copyright (c) 2015 Alex Parker
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
namespace TinyJson
{
public static class JSONParser
{
static Stack<List<string>> splitArrayPool = new Stack<List<string>>();
static StringBuilder stringBuilder = new StringBuilder();
static readonly Dictionary<Type, Dictionary<string, FieldInfo>> fieldInfoCache = new Dictionary<Type, Dictionary<string, FieldInfo>>();
static readonly Dictionary<Type, Dictionary<string, PropertyInfo>> propertyInfoCache = new Dictionary<Type, Dictionary<string, PropertyInfo>>();
public static T FromJson<T>(this string json)
{
try
{
if (string.IsNullOrEmpty(json))
return default(T);
//Remove all whitespace not within strings to make parsing simpler
stringBuilder.Length = 0;
for (int i = 0; i < json.Length; i++)
{
char c = json[i];
if (c == '\"')
{
i = AppendUntilStringEnd(true, i, json);
continue;
}
if (char.IsWhiteSpace(c))
continue;
stringBuilder.Append(c);
}
//Parse the thing!
return (T)ParseValue(typeof(T), stringBuilder.ToString());
}
catch { return default(T); }
}
static int AppendUntilStringEnd(bool appendEscapeCharacter, int startIdx, string json)
{
stringBuilder.Append(json[startIdx]);
for (int i = startIdx + 1; i < json.Length; i++)
{
if (json[i] == '\\')
{
if (appendEscapeCharacter)
stringBuilder.Append(json[i]);
stringBuilder.Append(json[i + 1]);
i++;//Skip next character as it is escaped
}
else if (json[i] == '\"')
{
stringBuilder.Append(json[i]);
return i;
}
else
stringBuilder.Append(json[i]);
}
return json.Length - 1;
}
//Splits { <value>:<value>, <value>:<value> } and [ <value>, <value> ] into a list of <value> strings
static List<string> Split(string json)
{
List<string> splitArray = splitArrayPool.Count > 0 ? splitArrayPool.Pop() : new List<string>();
splitArray.Clear();
int parseDepth = 0;
stringBuilder.Length = 0;
for (int i = 1; i < json.Length - 1; i++)
{
switch (json[i])
{
case '[':
case '{':
parseDepth++;
break;
case ']':
case '}':
parseDepth--;
break;
case '\"':
i = AppendUntilStringEnd(true, i, json);
continue;
case ',':
case ':':
if (parseDepth == 0)
{
splitArray.Add(stringBuilder.ToString());
stringBuilder.Length = 0;
continue;
}
break;
}
stringBuilder.Append(json[i]);
}
splitArray.Add(stringBuilder.ToString());
return splitArray;
}
internal static object ParseValue(Type type, string json)
{
if (type == typeof(string))
{
if (json.Length <= 2)
return string.Empty;
string str = json.Substring(1, json.Length - 2);
return str.Replace("\\\\", "\"\"").Replace("\\", string.Empty).Replace("\"\"", "\\");
}
if (type == typeof(int))
{
int result;
int.TryParse(json, out result);
return result;
}
if (type == typeof(float))
{
float result;
float.TryParse(json, out result);
return result;
}
if (type == typeof(double))
{
double result;
double.TryParse(json, out result);
return result;
}
if (type == typeof(bool))
{
return json.ToLower() == "true";
}
if (json == "null")
{
return null;
}
if (type.IsArray)
{
Type arrayType = type.GetElementType();
if (json[0] != '[' || json[json.Length - 1] != ']')
return null;
List<string> elems = Split(json);
Array newArray = Array.CreateInstance(arrayType, elems.Count);
for (int i = 0; i < elems.Count; i++)
newArray.SetValue(ParseValue(arrayType, elems[i]), i);
splitArrayPool.Push(elems);
return newArray;
}
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(List<>))
{
Type listType = type.GetGenericArguments()[0];
if (json[0] != '[' || json[json.Length - 1] != ']')
return null;
List<string> elems = Split(json);
var list = (IList)type.GetConstructor(new Type[] { typeof(int) }).Invoke(new object[] { elems.Count });
for (int i = 0; i < elems.Count; i++)
list.Add(ParseValue(listType, elems[i]));
splitArrayPool.Push(elems);
return list;
}
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Dictionary<,>))
{
Type keyType, valueType;
{
Type[] args = type.GetGenericArguments();
keyType = args[0];
valueType = args[1];
}
//Refuse to parse dictionary keys that aren't of type string
if (keyType != typeof(string))
return null;
//Must be a valid dictionary element
if (json[0] != '{' || json[json.Length - 1] != '}')
return null;
//The list is split into key/value pairs only, this means the split must be divisible by 2 to be valid JSON
List<string> elems = Split(json);
if (elems.Count % 2 != 0)
return null;
var dictionary = (IDictionary)type.GetConstructor(new Type[] { typeof(int) }).Invoke(new object[] { elems.Count / 2 });
for (int i = 0; i < elems.Count; i += 2)
{
if (elems[i].Length <= 2)
continue;
string keyValue = elems[i].Substring(1, elems[i].Length - 2);
object val = ParseValue(valueType, elems[i + 1]);
dictionary.Add(keyValue, val);
}
return dictionary;
}
if (type == typeof(object))
{
return ParseAnonymousValue(json);
}
if (json[0] == '{' && json[json.Length - 1] == '}')
{
return ParseObject(type, json);
}
return null;
}
static object ParseAnonymousValue(string json)
{
if (json.Length == 0)
return null;
if (json[0] == '{' && json[json.Length - 1] == '}')
{
List<string> elems = Split(json);
if (elems.Count % 2 != 0)
return null;
var dict = new Dictionary<string, object>(elems.Count / 2);
for (int i = 0; i < elems.Count; i += 2)
dict.Add(elems[i].Substring(1, elems[i].Length - 2), ParseAnonymousValue(elems[i + 1]));
return dict;
}
if (json[0] == '[' && json[json.Length - 1] == ']')
{
List<string> items = Split(json);
var finalList = new List<object>(items.Count);
for (int i = 0; i < items.Count; i++)
finalList.Add(ParseAnonymousValue(items[i]));
return finalList;
}
if (json[0] == '\"' && json[json.Length - 1] == '\"')
{
string str = json.Substring(1, json.Length - 2);
return str.Replace("\\", string.Empty);
}
if (char.IsDigit(json[0]) || json[0] == '-')
{
if (json.Contains("."))
{
double result;
double.TryParse(json, out result);
return result;
}
else
{
int result;
int.TryParse(json, out result);
return result;
}
}
if (json == "true")
return true;
if (json == "false")
return false;
// handles json == "null" as well as invalid JSON
return null;
}
static object ParseObject(Type type, string json)
{
object instance = FormatterServices.GetUninitializedObject(type);
//The list is split into key/value pairs only, this means the split must be divisible by 2 to be valid JSON
List<string> elems = Split(json);
if (elems.Count % 2 != 0)
return instance;
Dictionary<string, FieldInfo> nameToField;
Dictionary<string, PropertyInfo> nameToProperty;
if (!fieldInfoCache.TryGetValue(type, out nameToField))
{
nameToField = type.GetFields().Where(field => field.IsPublic).ToDictionary(field => field.Name);
fieldInfoCache.Add(type, nameToField);
}
if (!propertyInfoCache.TryGetValue(type, out nameToProperty))
{
nameToProperty = type.GetProperties().ToDictionary(p => p.Name);
propertyInfoCache.Add(type, nameToProperty);
}
for (int i = 0; i < elems.Count; i += 2)
{
if (elems[i].Length <= 2)
continue;
string key = elems[i].Substring(1, elems[i].Length - 2);
string value = elems[i + 1];
FieldInfo fieldInfo;
PropertyInfo propertyInfo;
if (nameToField.TryGetValue(key, out fieldInfo))
fieldInfo.SetValue(instance, ParseValue(fieldInfo.FieldType, value));
else if (nameToProperty.TryGetValue(key, out propertyInfo))
propertyInfo.SetValue(instance, ParseValue(propertyInfo.PropertyType, value), null);
}
return instance;
}
}
}