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Valeriano A.R.
2016-11-14 03:03:56 +01:00
commit 2aa6ec858b
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28
.gitignore vendored Normal file
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#ignorar miniaturas creadas por windows
Thumbs.db
#Ignorar archivos construidos por Visual Studio
*.obj
*.exe
*.pdb
*.user
*.aps
*.pch
*.vspscc
*_i.c
*_p.c
*.ncb
*.suo
*.tlb
*.tlh
*.bak
*.cache
*.ilk
*.log
[Bb]in
[Dd]ebug*/
*.lib
*.sbr
obj/
[Rr]elease*/
_ReSharper*/
*.userprefs

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The MIT License (MIT)
Copyright (c) 2014-2015 Valeriano Alfonso Rodriguez
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.

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README.md Normal file
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# .Net library for JSON parsing
## Usage
### VAR.Json
Add the resulting assembly as reference in your projects, and this line on code:
using VAR.Json;
Parse any string with JSON content:
var jsonParser = new JsonParser();
object result = jsonParser("{\"Test\": 1}");
Serialize any object to JSON:
var jsonWriter = new JsonWriter();
string jsonText = jsonWriter(new List<int>{1, 2, 3, 4});
## Building
A Visual Studio 2015 and 2010 solutions are provided. Simply, click build on the IDE.
## Contributing
1. Fork it!
2. Create your feature branch: `git checkout -b my-new-feature`
3. Commit your changes: `git commit -am 'Add some feature'`
4. Push to the branch: `git push origin my-new-feature`
5. Submit a pull request :D
## Credits
* Valeriano Alfonso Rodriguez.
## License
The MIT License (MIT)
Copyright (c) 2014-2015 Valeriano Alfonso Rodriguez
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.

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using System;
using System.IO;
using System.Text;
namespace VAR.Json.Tests
{
class Program
{
static void Main(string[] args)
{
// http://www.json.org/JSON_checker/
string currentPath = System.Reflection.Assembly.GetEntryAssembly().Location;
currentPath = FindPath(currentPath, "tests");
// Test all files
string[] files;
files = Directory.GetFiles(currentPath, "*.json");
foreach (string file in files)
{
TestFile(file);
}
Console.Read();
}
private static void TestFile(string fileName)
{
string testName = Path.GetFileNameWithoutExtension(fileName);
string fileContent = File.ReadAllText(fileName, Encoding.UTF8);
if (testName.StartsWith("fail"))
{
TestFailCase(testName, fileContent);
}
if (testName.StartsWith("pass"))
{
TestPassCase(testName, fileContent);
}
}
private static void TestFailCase(string testName, string fileContent)
{
JsonParser parser = new JsonParser();
object result;
try
{
result = parser.Parse(fileContent);
}
catch (Exception ex)
{
OutputFailure(testName, fileContent, ex);
return;
}
if (parser.Tainted == false)
{
OutputFailure(testName, fileContent, result);
return;
}
Console.Out.WriteLine("OK! {0}", testName);
}
private static void TestPassCase(string testName, string fileContent)
{
JsonParser parser = new JsonParser();
object result;
try
{
result = parser.Parse(fileContent);
}
catch (Exception ex)
{
OutputFailure(testName, fileContent, ex);
return;
}
if (parser.Tainted)
{
OutputFailure(testName, fileContent, result);
return;
}
Console.Out.WriteLine("OK! {0}", testName);
}
private static void OutputFailure(string testName, string fileContent, object obj)
{
Console.Out.WriteLine("Failure! {0}", testName);
Console.Out.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
Console.Out.WriteLine("Content:\n{0}", fileContent);
Console.Out.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
if (obj is Exception)
{
Exception ex = obj as Exception;
Console.Out.WriteLine("Ex.Message: {0}", ex.Message);
Console.Out.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
Console.Out.WriteLine("Ex.Stacktrace:\n{0}", ex.StackTrace);
Console.Out.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
}
if (obj != null && (obj is Exception) == false)
{
JsonWriter writter = new JsonWriter(true);
Console.Out.WriteLine("Parsed:\n{0}", writter.Write(obj));
Console.Out.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
}
}
private static string FindPath(string currentPath, string directory)
{
do
{
string testPath = Path.Combine(currentPath, directory);
if (Directory.Exists(testPath))
{
currentPath = testPath;
Console.Out.WriteLine(testPath);
break;
}
else
{
DirectoryInfo dirInfo = Directory.GetParent(currentPath);
if (dirInfo == null)
{
throw new Exception(string.Format("FindPath: Directory {0} not found", directory));
}
currentPath = dirInfo.ToString();
}
} while (string.IsNullOrEmpty(currentPath) == false);
return currentPath;
}
}
}

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VAR.Json.Tests/Properties/AssemblyInfo.cs Normal file
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using System.Reflection;
using System.Runtime.InteropServices;
[assembly: AssemblyTitle("VAR.Json.Tests")]
[assembly: AssemblyDescription("Json Tests")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("VAR")]
[assembly: AssemblyProduct("VAR.Json.Tests")]
[assembly: AssemblyCopyright("Copyright © VAR 2016")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
[assembly: ComVisible(false)]
[assembly: Guid("576297b8-423d-4533-b75a-f186ccff0d2a")]
[assembly: AssemblyVersion("1.0.*")]

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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>{576297B8-423D-4533-B75A-F186CCFF0D2A}</ProjectGuid>
<OutputType>Exe</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>VAR.Json.Tests</RootNamespace>
<AssemblyName>VAR.Json.Tests</AssemblyName>
<TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Core" />
</ItemGroup>
<ItemGroup>
<Compile Include="Program.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
</ItemGroup>
<ItemGroup>
<None Include="tests\fail01.json" />
<None Include="tests\fail10.json" />
<None Include="tests\fail11.json" />
<None Include="tests\fail12.json" />
<None Include="tests\fail13.json" />
<None Include="tests\fail14.json" />
<None Include="tests\fail15.json" />
<None Include="tests\fail16.json" />
<None Include="tests\fail17.json" />
<None Include="tests\fail18.json" />
<None Include="tests\fail19.json" />
<None Include="tests\fail02.json" />
<None Include="tests\fail20.json" />
<None Include="tests\fail21.json" />
<None Include="tests\fail22.json" />
<None Include="tests\fail23.json" />
<None Include="tests\fail24.json" />
<None Include="tests\fail25.json" />
<None Include="tests\fail26.json" />
<None Include="tests\fail27.json" />
<None Include="tests\fail28.json" />
<None Include="tests\fail29.json" />
<None Include="tests\fail03.json" />
<None Include="tests\fail30.json" />
<None Include="tests\fail31.json" />
<None Include="tests\fail32.json" />
<None Include="tests\fail33.json" />
<None Include="tests\fail04.json" />
<None Include="tests\fail05.json" />
<None Include="tests\fail06.json" />
<None Include="tests\fail07.json" />
<None Include="tests\fail08.json" />
<None Include="tests\fail09.json" />
<None Include="tests\pass01.json" />
<None Include="tests\pass02.json" />
<None Include="tests\pass03.json" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\VAR.Json\VAR.Json.csproj">
<Project>{28b3f937-145c-4fd4-a75b-a25ea4cc0428}</Project>
<Name>VAR.Json</Name>
</ProjectReference>
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see Microsoft.Common.targets.
<Target Name="BeforeBuild">
</Target>
<Target Name="AfterBuild">
</Target>
-->
</Project>

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"A JSON payload should be an object or array, not a string."

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VAR.Json.Tests/tests/fail02.json Normal file
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["Unclosed array"

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VAR.Json.Tests/tests/fail03.json Normal file
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{unquoted_key: "keys must be quoted"}

1
VAR.Json.Tests/tests/fail04.json Normal file
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["extra comma",]

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["double extra comma",,]

1
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[ , "<-- missing value"]

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["Comma after the close"],

1
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["Extra close"]]

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VAR.Json.Tests/tests/fail09.json Normal file
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{"Extra comma": true,}

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{"Extra value after close": true} "misplaced quoted value"

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VAR.Json.Tests/tests/fail11.json Normal file
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{"Illegal expression": 1 + 2}

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VAR.Json.Tests/tests/fail12.json Normal file
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{"Illegal invocation": alert()}

1
VAR.Json.Tests/tests/fail13.json Normal file
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{"Numbers cannot have leading zeroes": 013}

1
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{"Numbers cannot be hex": 0x14}

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VAR.Json.Tests/tests/fail15.json Normal file
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["Illegal backslash escape: \x15"]

1
VAR.Json.Tests/tests/fail16.json Normal file
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[\naked]

1
VAR.Json.Tests/tests/fail17.json Normal file
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["Illegal backslash escape: \017"]

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VAR.Json.Tests/tests/fail18.json Normal file
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[[[[[[[[[[[[[[[[[[[["Too deep"]]]]]]]]]]]]]]]]]]]]

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{"Missing colon" null}

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{"Double colon":: null}

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VAR.Json.Tests/tests/fail21.json Normal file
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{"Comma instead of colon", null}

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["Colon instead of comma": false]

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["Bad value", truth]

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['single quote']

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VAR.Json.Tests/tests/fail25.json Normal file
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[" tab character in string "]

1
VAR.Json.Tests/tests/fail26.json Normal file
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["tab\ character\ in\ string\ "]

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["line
break"]

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["line\
break"]

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[0e]

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VAR.Json.Tests/tests/fail30.json Normal file
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[0e+]

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VAR.Json.Tests/tests/fail31.json Normal file
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[0e+-1]

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VAR.Json.Tests/tests/fail32.json Normal file
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{"Comma instead if closing brace": true,

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["mismatch"}

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VAR.Json.Tests/tests/pass01.json Normal file
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[
"JSON Test Pattern pass1",
{"object with 1 member":["array with 1 element"]},
{},
[],
-42,
true,
false,
null,
{
"integer": 1234567890,
"real": -9876.543210,
"e": 0.123456789e-12,
"E": 1.234567890E+34,
"": 23456789012E66,
"zero": 0,
"one": 1,
"space": " ",
"quote": "\"",
"backslash": "\\",
"controls": "\b\f\n\r\t",
"slash": "/ & \/",
"alpha": "abcdefghijklmnopqrstuvwyz",
"ALPHA": "ABCDEFGHIJKLMNOPQRSTUVWYZ",
"digit": "0123456789",
"0123456789": "digit",
"special": "`1~!@#$%^&*()_+-={':[,]}|;.</>?",
"hex": "\u0123\u4567\u89AB\uCDEF\uabcd\uef4A",
"true": true,
"false": false,
"null": null,
"array":[ ],
"object":{ },
"address": "50 St. James Street",
"url": "http://www.JSON.org/",
"comment": "// /* <!-- --",
"# -- --> */": " ",
" s p a c e d " :[1,2 , 3
,
4 , 5 , 6 ,7 ],"compact":[1,2,3,4,5,6,7],
"jsontext": "{\"object with 1 member\":[\"array with 1 element\"]}",
"quotes": "&#34; \u0022 %22 0x22 034 &#x22;",
"\/\\\"\uCAFE\uBABE\uAB98\uFCDE\ubcda\uef4A\b\f\n\r\t`1~!@#$%^&*()_+-=[]{}|;:',./<>?"
: "A key can be any string"
},
0.5 ,98.6
,
99.44
,
1066,
1e1,
0.1e1,
1e-1,
1e00,2e+00,2e-00
,"rosebud"]

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[[[[[[[[[[[[[[[[[[["Not too deep"]]]]]]]]]]]]]]]]]]]

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{
"JSON Test Pattern pass3": {
"The outermost value": "must be an object or array.",
"In this test": "It is an object."
}
}

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VAR.Json.sln Normal file
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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 14
VisualStudioVersion = 14.0.25420.1
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VAR.Json", "VAR.Json\VAR.Json.csproj", "{28B3F937-145C-4FD4-A75B-A25EA4CC0428}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VAR.Json.Tests", "VAR.Json.Tests\VAR.Json.Tests.csproj", "{576297B8-423D-4533-B75A-F186CCFF0D2A}"
EndProject
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Notes", "Notes", "{4C23A421-5348-48F1-8B67-A4D43E616FDE}"
ProjectSection(SolutionItems) = preProject
LICENSE.txt = LICENSE.txt
README.md = README.md
EndProjectSection
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{28B3F937-145C-4FD4-A75B-A25EA4CC0428}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{28B3F937-145C-4FD4-A75B-A25EA4CC0428}.Debug|Any CPU.Build.0 = Debug|Any CPU
{28B3F937-145C-4FD4-A75B-A25EA4CC0428}.Release|Any CPU.ActiveCfg = Release|Any CPU
{28B3F937-145C-4FD4-A75B-A25EA4CC0428}.Release|Any CPU.Build.0 = Release|Any CPU
{576297B8-423D-4533-B75A-F186CCFF0D2A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{576297B8-423D-4533-B75A-F186CCFF0D2A}.Debug|Any CPU.Build.0 = Debug|Any CPU
{576297B8-423D-4533-B75A-F186CCFF0D2A}.Release|Any CPU.ActiveCfg = Release|Any CPU
{576297B8-423D-4533-B75A-F186CCFF0D2A}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

637
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using System;
using System.Collections.Generic;
using System.Globalization;
using System.Reflection;
using System.Text;
namespace VAR.Json
{
public class JsonParser
{
#region Declarations
private const int MaxRecursiveCount = 20;
private ParserContext _ctx;
private bool _tainted = false;
private List<Type> _knownTypes = new List<Type>();
#endregion Declarations
#region Properties
public bool Tainted
{
get { return _tainted; }
}
public List<Type> KnownTypes
{
get { return _knownTypes; }
}
#endregion Properties
#region Private methods
private static Dictionary<Type, PropertyInfo[]> _dictProperties = new Dictionary<Type, PropertyInfo[]>();
private PropertyInfo[] Type_GetProperties(Type type)
{
PropertyInfo[] typeProperties = null;
if (_dictProperties.ContainsKey(type)) { typeProperties = _dictProperties[type]; }
else
{
lock (_dictProperties)
{
if (_dictProperties.ContainsKey(type)) { typeProperties = _dictProperties[type]; }
else
{
typeProperties = type.GetProperties(BindingFlags.Public | BindingFlags.OptionalParamBinding | BindingFlags.Instance);
_dictProperties.Add(type, typeProperties);
}
}
}
return typeProperties;
}
private float CompareToType(Dictionary<string, object> obj, Type type)
{
PropertyInfo[] typeProperties = Type_GetProperties(type);
int count = 0;
foreach (PropertyInfo prop in typeProperties)
{
if (obj.ContainsKey(prop.Name))
{
count++;
}
}
return ((float)count / (float)typeProperties.Length);
}
private object ConvertToType(Dictionary<string, object> obj, Type type)
{
PropertyInfo[] typeProperties = Type_GetProperties(type);
object newObj = Activator.CreateInstance(type);
foreach (PropertyInfo prop in typeProperties)
{
if (obj.ContainsKey(prop.Name))
{
prop.SetValue(newObj, Convert.ChangeType(obj[prop.Name], prop.PropertyType), null);
}
}
return newObj;
}
private object TryConvertToTypes(Dictionary<string, object> obj)
{
Type bestMatch = null;
float bestMatchFactor = 0.0f;
foreach (Type type in _knownTypes)
{
float matchFactor = CompareToType(obj, type);
if (matchFactor > bestMatchFactor)
{
bestMatch = type;
bestMatchFactor = matchFactor;
}
}
if (bestMatch != null)
{
return ConvertToType(obj, bestMatch);
}
return obj;
}
private int ParseHexShort()
{
int value = 0;
for (int i = 0; i < 4; i++)
{
char c = _ctx.Next();
if (char.IsDigit(c))
{
value = (value << 4) | (c - '0');
}
else
{
c = char.ToLower(c);
if (c >= 'a' && c <= 'f')
{
value = (value << 4) | ((c - 'a') + 10);
}
}
}
return value;
}
private string ParseQuotedString()
{
StringBuilder scratch = new StringBuilder();
char c = _ctx.SkipWhite();
if (c == '"')
{
c = _ctx.Next();
}
do
{
if (c == '\\')
{
c = _ctx.Next();
if (c == '"')
{
scratch.Append('"');
}
else if (c == '\\')
{
scratch.Append('\\');
}
else if (c == '/')
{
scratch.Append('/');
}
else if (c == 'b')
{
scratch.Append('\b');
}
else if (c == 'f')
{
scratch.Append('\f');
}
else if (c == 'n')
{
scratch.Append('\n');
}
else if (c == 'r')
{
scratch.Append('\r');
}
else if (c == 't')
{
scratch.Append('\t');
}
else if (c == 'u')
{
scratch.Append((char)ParseHexShort());
}
else
{
// StrictRules: Mark as tainted on unknown escaped character
_tainted = true;
}
c = _ctx.Next();
}
else if (c == '"')
{
_ctx.Next();
break;
}
else
{
// StrictRules: Mark as tainted on ilegal characters
if (c == '\t' || c == '\n') { _tainted = true; }
scratch.Append(c);
c = _ctx.Next();
}
} while (!_ctx.AtEnd());
return scratch.ToString();
}
private string ParseSingleQuotedString()
{
StringBuilder scratch = new StringBuilder();
char c = _ctx.SkipWhite();
if (c == '\'')
{
c = _ctx.Next();
}
do
{
if (c == '\\')
{
c = _ctx.Next();
if (c == '\'')
{
scratch.Append('\'');
}
else if (c == '\\')
{
scratch.Append('\\');
}
else if (c == '/')
{
scratch.Append('/');
}
else if (c == 'b')
{
scratch.Append('\b');
}
else if (c == 'f')
{
scratch.Append('\f');
}
else if (c == 'n')
{
scratch.Append('\n');
}
else if (c == 'r')
{
scratch.Append('\r');
}
else if (c == 't')
{
scratch.Append('\t');
}
else if (c == 'u')
{
scratch.Append((char)ParseHexShort());
}
else
{
// StrictRules: Mark as tainted on unknown escaped character
_tainted = true;
}
c = _ctx.Next();
}
else if (c == '\'')
{
_ctx.Next();
break;
}
else
{
// StrictRules: Mark as tainted on ilegal characters
if (c == '\t' || c == '\n') { _tainted = true; }
scratch.Append(c);
c = _ctx.Next();
}
} while (!_ctx.AtEnd());
return scratch.ToString();
}
private string ParseString(bool mustBeQuoted = false)
{
char c = _ctx.SkipWhite();
if (c == '"')
{
return ParseQuotedString();
}
if (c == '\'')
{
_tainted = true;
return ParseSingleQuotedString();
}
if (mustBeQuoted) { _tainted = true; }
StringBuilder scratch = new StringBuilder();
while (!_ctx.AtEnd()
&& (char.IsLetter(c) || char.IsDigit(c) || c == '_'))
{
scratch.Append(c);
c = _ctx.Next();
}
return scratch.ToString();
}
private object ParseNumber()
{
StringBuilder scratch = new StringBuilder();
bool isFloat = false;
bool isExp = false;
int numberLenght = 0;
int expLenght = 0;
char c;
c = _ctx.SkipWhite();
// Sign
if (c == '-')
{
scratch.Append('-');
c = _ctx.Next();
}
// Integer part
bool leadingZeroes = true;
int leadingZeroesLenght = 0;
while (char.IsDigit(c))
{
// Count leading zeroes
if (leadingZeroes && c == '0') { leadingZeroesLenght++; }
else { leadingZeroes = false; }
scratch.Append(c);
c = _ctx.Next();
numberLenght++;
}
// StrictRules: Mark as tainted with leading zeroes
if ((leadingZeroesLenght > 0 && leadingZeroesLenght != numberLenght) || leadingZeroesLenght > 1)
{
_tainted = true;
}
// Decimal part
if (c == '.')
{
isFloat = true;
scratch.Append(".");
c = _ctx.Next();
while (char.IsDigit(c))
{
scratch.Append(c);
c = _ctx.Next();
numberLenght++;
}
}
if (numberLenght == 0)
{
_tainted = true;
return null;
}
// Exponential part
if (c == 'e' || c == 'E')
{
isFloat = true;
isExp = true;
scratch.Append('E');
c = _ctx.Next();
if (c == '+' || c == '-')
{
scratch.Append(c);
c = _ctx.Next();
}
while (char.IsDigit(c))
{
scratch.Append(c);
c = _ctx.Next();
numberLenght++;
expLenght++;
}
}
if (isExp && expLenght == 0)
{
_tainted = true;
return null;
}
// Build number from the parsed string
string s = scratch.ToString();
if (isFloat)
{
if (numberLenght < 17)
{
return Convert.ToDouble(s, CultureInfo.InvariantCulture);
}
else
{
return Convert.ToDecimal(s, CultureInfo.InvariantCulture);
}
}
else
{
return Convert.ToInt32(s);
}
}
private List<object> ParseArray(int recursiveCount = 1)
{
// StrictRules: Mark as tainted when MaxRecursiveCount is exceeded
if (recursiveCount >= MaxRecursiveCount) { _tainted = true; }
bool correct = false;
char c = _ctx.SkipWhite();
List<object> array = new List<object>();
if (c == '[')
{
_ctx.Next();
}
bool? expectValue = null;
do
{
c = _ctx.SkipWhite();
if (c == ']')
{
// StrictRules: Mark as tainted when unexpected end of array
if (expectValue == true) { _tainted = true; }
correct = true;
_ctx.Next();
break;
}
else if (c == ',')
{
// StrictRules: Mark as tainted when unexpected comma on array
if (expectValue == true || array.Count == 0) { _tainted = true; }
_ctx.Next();
expectValue = true;
}
else
{
// StrictRules: Mark as tainted when unexpected value on array
if (expectValue == false) { _tainted = true; }
array.Add(ParseValue(recursiveCount + 1));
expectValue = false;
}
} while (!_ctx.AtEnd());
if (correct == false)
{
_tainted = true;
}
return array;
}
private Dictionary<string, object> ParseObject(int recursiveCount = 1)
{
// StrictRules: Mark as tainted when MaxRecursiveCount is exceeded
if (recursiveCount >= MaxRecursiveCount) { _tainted = true; }
bool correct = false;
char c = _ctx.SkipWhite();
Dictionary<string, object> obj = new Dictionary<string, object>();
if (c == '{')
{
_ctx.Next();
}
string attributeName = null;
object attributeValue;
bool? expectedKey = null;
bool? expectedValue = null;
do
{
c = _ctx.SkipWhite();
if (c == ':')
{
_ctx.Next();
if (expectedValue == true)
{
attributeValue = ParseValue(recursiveCount + 1);
obj.Add(attributeName, attributeValue);
expectedKey = null;
expectedValue = false;
}
}
else if (c == ',')
{
_ctx.Next();
c = _ctx.SkipWhite();
expectedKey = true;
expectedValue = false;
}
else if (c == '}')
{
// StrictRules: Mark as tainted on unexpected end of object
if(expectedValue == true || expectedKey == true)
{
_tainted = true;
}
correct = true;
_ctx.Next();
break;
}
else
{
if (expectedKey != false)
{
attributeName = ParseString(true);
c = _ctx.SkipWhite();
expectedKey = false;
expectedValue = true;
}
else
{
// Unexpected character
_tainted = true;
break;
}
}
} while (!_ctx.AtEnd());
if (correct == false)
{
_tainted = true;
}
return obj;
}
private object ParseValue(int recusiveCount = 1)
{
object token = null;
char c = _ctx.SkipWhite();
switch (c)
{
case '"':
token = ParseQuotedString();
break;
case '\'':
// StrictRules: Mark as tainted when parsing single quoted strings
_tainted = true;
token = ParseSingleQuotedString();
break;
case '{':
Dictionary<string, object> obj = ParseObject(recusiveCount);
token = TryConvertToTypes(obj);
break;
case '[':
token = ParseArray(recusiveCount);
break;
default:
if (char.IsDigit(c) || c == '-')
{
token = ParseNumber();
}
else
{
string aux = ParseString();
if (aux.CompareTo("true") == 0)
{
token = true;
}
else if (aux.CompareTo("false") == 0)
{
token = false;
}
else if (aux.CompareTo("null") == 0)
{
token = null;
}
else
{
// Unexpected string
if (aux.Length == 0)
{
_ctx.Next();
}
_tainted = true;
token = null;
}
}
break;
}
return token;
}
private string CleanIdentifier(string input)
{
int i;
char c;
i = input.Length - 1;
if (i < 0)
{
return input;
}
c = input[i];
while (char.IsLetter(c) || char.IsDigit(c) || c == '_')
{
i--;
if (i < 0)
{
break;
}
c = input[i];
}
return input.Substring(i + 1);
}
#endregion Private methods
#region Public methods
public object Parse(string text)
{
// Get the first object
_ctx = new ParserContext(text);
_tainted = false;
_ctx.Mark();
object obj = ParseValue();
_ctx.SkipWhite();
if (_ctx.AtEnd())
{
// StrictRules: Mark as tainted when top level is not object or array
if (obj is string || obj is decimal || obj is int || obj is double || obj is float)
{
_tainted = true;
}
return obj;
}
// StrictRules: Mark as tainted when there is more content
_tainted = true;
return obj;
}
#endregion Public methods
}
}

337
VAR.Json/JsonWriter.cs Normal file
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
using System.Text;
namespace VAR.Json
{
public class JsonWriter
{
#region Declarations
private bool _indent = false;
private bool _useTabForIndent = false;
private int _indentChars = 4;
private int _indentThresold = 3;
#endregion Declarations
#region Creator
public JsonWriter()
{
}
public JsonWriter(int indentChars)
{
this._indent = true;
this._indentChars = indentChars;
this._useTabForIndent = false;
}
public JsonWriter(bool useTabForIndent)
{
this._indent = true;
this._useTabForIndent = useTabForIndent;
}
#endregion Creator
#region Private methods
private bool IsValue(Object obj)
{
if (obj == null)
{
return true;
}
if ((obj is float) || (obj is double) ||
(obj is System.Int16) || (obj is System.Int32) || (obj is System.Int64)
|| (obj is String) || (obj is Boolean))
{
return true;
}
return false;
}
private void WriteIndent(StringBuilder sbOutput, int level)
{
if (!_indent)
{
return;
}
sbOutput.Append('\n');
if (_useTabForIndent)
{
for (int i = 0; i < level; i++) { sbOutput.Append('\t'); }
}
else
{
int n = level * _indentChars;
for (int i = 0; i < n; i++) { sbOutput.Append(' '); }
}
}
private void WriteString(StringBuilder sbOutput, string str)
{
sbOutput.Append('"');
char c;
int n = str.Length;
for (int i = 0; i < n; i++)
{
c = str[i];
if (c == '"') { sbOutput.Append("\\\""); }
else if (c == '\\') { sbOutput.Append("\\\\"); }
else if (c == '/') { sbOutput.Append("\\/"); }
else if (c == '\b') { sbOutput.Append("\\b"); }
else if (c == '\f') { sbOutput.Append("\\f"); }
else if (c == '\n') { sbOutput.Append("\\n"); }
else if (c == '\r') { sbOutput.Append("\\r"); }
else if (c == '\t') { sbOutput.Append("\\t"); }
else if (c < 32 || c >= 127) { sbOutput.AppendFormat("\\u{0:X04}", (int)c); }
else { sbOutput.Append(c); }
}
sbOutput.Append('"');
}
private void WriteValue(StringBuilder sbOutput, Object obj, int level, bool useReflection)
{
if (obj == null || obj is DBNull)
{
// NULL
sbOutput.Append("null");
}
else if ((obj is float) || (obj is double) ||
(obj is System.Int16) || (obj is System.Int32) || (obj is System.Int64))
{
// Numbers
sbOutput.Append(obj.ToString());
}
else if (obj is String)
{
// Strings
WriteString(sbOutput, (String)obj);
}
else if (obj is Boolean)
{
// Booleans
sbOutput.Append(((Boolean)obj) ? "true" : "false");
}
else if (obj is DateTime)
{
// DateTime
sbOutput.Append('"');
sbOutput.Append(((DateTime)obj).ToString("yyyy-MM-ddTHH:mm:ssZ"));
sbOutput.Append('"');
}
else if (obj is IDictionary)
{
// Objects
WriteObject(sbOutput, obj, level);
}
else if (obj is IEnumerable)
{
// Array/List
WriteList(sbOutput, obj, level);
}
else
{
if (useReflection)
{
// Reflected object
WriteReflectedObject(sbOutput, obj, level);
}
else
{
WriteString(sbOutput, Convert.ToString(obj));
}
}
}
private void WriteList(StringBuilder sbOutput, Object obj, int level)
{
IEnumerable list = (IEnumerable)obj;
int n = 0;
// Check if it is a leaf object
bool isLeaf = true;
foreach (object childObj in list)
{
if (!IsValue(childObj))
{
isLeaf = false;
}
n++;
}
// Empty
if (n == 0)
{
sbOutput.Append("[ ]");
return;
}
// Write array
bool first = true;
sbOutput.Append("[ ");
if (!isLeaf || n > _indentThresold)
{
WriteIndent(sbOutput, level + 1);
}
foreach (object childObj in list)
{
if (!first)
{
sbOutput.Append(", ");
if (!isLeaf || n > _indentThresold)
{
WriteIndent(sbOutput, level + 1);
}
}
first = false;
WriteValue(sbOutput, childObj, level + 1, true);
}
if (!isLeaf || n > _indentThresold)
{
WriteIndent(sbOutput, level);
}
sbOutput.Append(" ]");
}
private void WriteObject(StringBuilder sbOutput, Object obj, int level)
{
IDictionary map = (IDictionary)obj;
int n = map.Count;
// Empty
if (map.Count == 0)
{
sbOutput.Append("{ }");
return;
}
// Check if it is a leaf object
bool isLeaf = true;
foreach (object value in map.Values)
{
if (!IsValue(value))
{
isLeaf = false;
break;
}
}
// Write object
bool first = true;
sbOutput.Append("{ ");
if (!isLeaf || n > _indentThresold)
{
WriteIndent(sbOutput, level + 1);
}
foreach (object key in map.Keys)
{
object value = map[key];
if (!first)
{
sbOutput.Append(", ");
if (!isLeaf || n > _indentThresold)
{
WriteIndent(sbOutput, level + 1);
}
}
first = false;
WriteString(sbOutput, Convert.ToString(key));
sbOutput.Append(": ");
WriteValue(sbOutput, value, level + 1, true);
}
if (!isLeaf || n > _indentThresold)
{
WriteIndent(sbOutput, level);
}
sbOutput.Append(" }");
}
private void WriteReflectedObject(StringBuilder sbOutput, Object obj, int level)
{
Type type = obj.GetType();
PropertyInfo[] rawProperties = type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
List<PropertyInfo> properties = new List<PropertyInfo>();
foreach (PropertyInfo property in rawProperties)
{
if (property.CanRead)
{
properties.Add(property);
}
}
int n = properties.Count;
// Empty
if (n == 0)
{
sbOutput.Append("{ }");
return;
}
// Check if it is a leaf object
bool isLeaf = true;
foreach (PropertyInfo property in properties)
{
object value = property.GetValue(obj, null);
if (!IsValue(value))
{
isLeaf = false;
break;
}
}
// Write object
bool first = true;
sbOutput.Append("{ ");
if (!isLeaf || n > _indentThresold)
{
WriteIndent(sbOutput, level + 1);
}
foreach (PropertyInfo property in properties)
{
object value = null;
MethodInfo getMethod = property.GetGetMethod();
ParameterInfo[] parameters = getMethod.GetParameters();
if (parameters.Length == 0)
{
value = property.GetValue(obj, null);
}
if (!first)
{
sbOutput.Append(", ");
if (!isLeaf || n > _indentThresold)
{
WriteIndent(sbOutput, level + 1);
}
}
first = false;
WriteString(sbOutput, property.Name);
sbOutput.Append(": ");
WriteValue(sbOutput, value, level + 1, false);
}
if (!isLeaf || n > _indentThresold)
{
WriteIndent(sbOutput, level);
}
sbOutput.Append(" }");
}
#endregion Private methods
#region Public methods
public String Write(Object obj)
{
StringBuilder sbOutput = new StringBuilder();
WriteValue(sbOutput, obj, 0, true);
return sbOutput.ToString();
}
#endregion Public methods
}
}

84
VAR.Json/ParserContext.cs Normal file
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using System;
namespace VAR.Json
{
public class ParserContext
{
#region Declarations
private string _text;
private int _length;
private int _i;
private int _markStart;
#endregion Declarations
#region Creator
public ParserContext(string text)
{
_text = text;
_length = text.Length;
_i = 0;
_markStart = 0;
}
#endregion Creator
#region Public methods
public char SkipWhite()
{
while (_i < _length && char.IsWhiteSpace(_text[_i]))
{
_i++;
}
if (AtEnd())
{
return (char)0;
}
return _text[_i];
}
public char Next()
{
_i++;
if (AtEnd())
{
return (char)0;
}
return _text[_i];
}
public bool AtEnd()
{
return _i >= _length;
}
public void Mark()
{
_markStart = _i;
}
public string GetMarked()
{
if (_i < _length && _markStart < _length)
{
return _text.Substring(_markStart, _i - _markStart);
}
else
{
if (_markStart < _length)
{
return _text.Substring(_markStart, _length - _markStart);
}
else
{
return string.Empty;
}
}
}
#endregion Public methods
}
}

14
VAR.Json/Properties/AssemblyInfo.cs Normal file
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using System.Reflection;
using System.Runtime.InteropServices;
[assembly: AssemblyTitle("VAR.Json")]
[assembly: AssemblyDescription("Json Library")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("VAR")]
[assembly: AssemblyProduct("VAR.Json")]
[assembly: AssemblyCopyright("Copyright © VAR 2016")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
[assembly: ComVisible(false)]
[assembly: Guid("28b3f937-145c-4fd4-a75b-a25ea4cc0428")]
[assembly: AssemblyVersion("1.0.*")]

50
VAR.Json/VAR.Json.csproj Normal file
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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>{28B3F937-145C-4FD4-A75B-A25EA4CC0428}</ProjectGuid>
<OutputType>Library</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>VAR.Json</RootNamespace>
<AssemblyName>VAR.Json</AssemblyName>
<TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Core" />
</ItemGroup>
<ItemGroup>
<Compile Include="JsonParser.cs" />
<Compile Include="JsonWriter.cs" />
<Compile Include="ParserContext.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see Microsoft.Common.targets.
<Target Name="BeforeBuild">
</Target>
<Target Name="AfterBuild">
</Target>
-->
</Project>