mirror of
https://github.com/pixeltris/TwitchAdSolutions.git
synced 2024-11-22 10:22:51 +01:00
Add utils for testing SSAI
This commit is contained in:
pixeltris
parent
bd5a086409
commit
c36b8ce6b7
1
utils.bat
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1
utils.bat
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call %WINDIR%\Microsoft.NET\Framework\v4.0.30319\csc.exe utils.cs
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750
utils.cs
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750
utils.cs
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Runtime.Serialization;
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using System.Reflection;
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using System.Threading;
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using System.Net;
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using System.IO;
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namespace TwitchAdUtils
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{
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class Program
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{
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public static string ClientID = "kimne78kx3ncx6brgo4mv6wki5h1ko";
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public static string UserAgentChrome = "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36";
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public static string UserAgentFirefox = "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0";
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public static string UserAgent = UserAgentChrome;
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public static bool UseOldAccessToken = false;
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public static bool UseAccessTokenTemplate = false;
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public static string PlayerTypeRegular = "site";//embed
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public static string PlayerTypeMiniNoAd = "picture-by-picture";
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public static string Platform = "web";
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public static string PlayerBackend = "mediaplayer";
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public static string MainM3U8AdditionalParams = "";
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public static string AdSignifier = "stitched-ad";
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public static TimeSpan LoopDelay = TimeSpan.FromSeconds(1);
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enum RunnerMode
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{
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Regular,
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MiniNoAd
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}
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static void Main()
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{
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ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
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Console.Write("Enter channel name: ");
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string channel = Console.ReadLine();
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Console.WriteLine("Fetching channel '" + channel + "'");
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RunImpl(RunnerMode.Regular, channel);
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//RunImpl(RunnerMode.MiniNoAd, channel);
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}
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static void Run(RunnerMode mode, string channel)
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{
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Thread thread = new Thread(delegate()
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{
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RunImpl(mode, channel);
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});
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thread.IsBackground = true;
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thread.Start();
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}
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static void RunImpl(RunnerMode mode, string channel)
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{
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string playerType = mode == RunnerMode.Regular ? PlayerTypeRegular : PlayerTypeMiniNoAd;
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string cookies = null;
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string uniqueId = null;
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while (true)
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{
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if (string.IsNullOrEmpty(cookies))
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{
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using (CookieAwareWebClient wc = new CookieAwareWebClient())
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{
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wc.Proxy = null;
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wc.Headers["Accept"] = "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9";
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wc.DownloadString("https://www.twitch.tv/" + channel);
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cookies = ProcessCookies(wc.Cookies, out uniqueId);
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//Console.WriteLine("unique_id: " + uniqueId);
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}
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}
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if (string.IsNullOrEmpty(uniqueId))
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{
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Console.WriteLine("unique_id is null");
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return;
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}
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using (WebClient wc = new WebClient())
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{
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string response = null, token = null, sig = null;
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wc.Proxy = null;
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if (UseOldAccessToken)
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{
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wc.Headers.Clear();
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wc.Headers["client-id"] = ClientID;
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wc.Headers["accept"] = "application/vnd.twitchtv.v5+json; charset=UTF-8";
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wc.Headers["accept-encoding"] = "gzip, deflate, br";
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wc.Headers["accept-language"] = "en-us";
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wc.Headers["content-type"] = "application/json; charset=UTF-8";
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wc.Headers["origin"] = "https://www.twitch.tv";
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wc.Headers["referer"] = "https://www.twitch.tv/";
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wc.Headers["user-agent"] = UserAgent;
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wc.Headers["x-requested-with"] = "XMLHttpRequest";
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wc.Headers["cookie"] = cookies;
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response = wc.DownloadString("https://api.twitch.tv/api/channels/" + channel + "/access_token?oauth_token=undefined&need_https=true&platform=" + Platform + "&player_type=" + playerType + "&player_backend=" + PlayerBackend);
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if (!string.IsNullOrEmpty(response))
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{
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TwitchAccessTokenOld tokenInfo = JSONSerializer<TwitchAccessTokenOld>.DeSerialize(response);
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if (tokenInfo != null && !string.IsNullOrEmpty(tokenInfo.token) && !string.IsNullOrEmpty(tokenInfo.sig))
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{
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token = tokenInfo.token;
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sig = tokenInfo.sig;
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}
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}
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}
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else
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{
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wc.Headers.Clear();
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wc.Headers["client-id"] = ClientID;
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wc.Headers["Device-ID"] = uniqueId;
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wc.Headers["accept"] = "*/*";
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wc.Headers["accept-encoding"] = "gzip, deflate, br";
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wc.Headers["accept-language"] = "en-us";
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wc.Headers["content-type"] = "text/plain; charset=UTF-8";
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wc.Headers["origin"] = "https://www.twitch.tv";
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wc.Headers["referer"] = "https://www.twitch.tv/";
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wc.Headers["user-agent"] = UserAgent;
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if (UseAccessTokenTemplate)
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{
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response = wc.UploadString("https://gql.twitch.tv/gql", @"{""operationName"":""PlaybackAccessToken_Template"",""query"":""query PlaybackAccessToken_Template($login: String!, $isLive: Boolean!, $vodID: ID!, $isVod: Boolean!, $playerType: String!) { streamPlaybackAccessToken(channelName: $login, params: {platform: \""" + Platform + @"\"", playerBackend: \""" + PlayerBackend + @"\"", playerType: $playerType}) @include(if: $isLive) { value signature __typename } videoPlaybackAccessToken(id: $vodID, params: {platform: \""" + Platform + @"\"", playerBackend: \""" + PlayerBackend + @"\"", playerType: $playerType}) @include(if: $isVod) { value signature __typename }}"",""variables"":{""isLive"":true,""login"":""" + channel + @""",""isVod"":false,""vodID"":"""",""playerType"":""" + playerType + @"""}}");
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}
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else
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{
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response = wc.UploadString("https://gql.twitch.tv/gql", @"{""operationName"":""PlaybackAccessToken"",""variables"":{""isLive"":true,""login"":""" + channel + @""",""isVod"":false,""vodID"":"""",""playerType"":""" + playerType + @"""},""extensions"":{""persistedQuery"":{""version"":1,""sha256Hash"":""0828119ded1c13477966434e15800ff57ddacf13ba1911c129dc2200705b0712""}}}");
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}
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if (!string.IsNullOrEmpty(response))
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{
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TwitchAccessToken tokenInfo = JSONSerializer<TwitchAccessToken>.DeSerialize(response);
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if (tokenInfo != null && tokenInfo.data != null && tokenInfo.data.streamPlaybackAccessToken != null &&
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!string.IsNullOrEmpty(tokenInfo.data.streamPlaybackAccessToken.value) && !string.IsNullOrEmpty(tokenInfo.data.streamPlaybackAccessToken.signature))
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{
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token = tokenInfo.data.streamPlaybackAccessToken.value;
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sig = tokenInfo.data.streamPlaybackAccessToken.signature;
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}
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}
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}
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if (!string.IsNullOrEmpty(token))
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{
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string url = "https://usher.ttvnw.net/api/channel/hls/" + channel + ".m3u8?allow_source=true&sig=" + sig + "&token=" + System.Web.HttpUtility.UrlEncode(token) + MainM3U8AdditionalParams;
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wc.Headers.Clear();
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wc.Headers["accept"] = "application/x-mpegURL, application/vnd.apple.mpegurl, application/json, text/plain";
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wc.Headers["host"] = "usher.ttvnw.net";
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wc.Headers["cookie"] = "DNT=1;";
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wc.Headers["DNT"] = "1";
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wc.Headers["user-agent"] = UserAgent;
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string encodingsM3u8 = wc.DownloadString(url);
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if (!string.IsNullOrEmpty(encodingsM3u8))
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{
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string[] lines = encodingsM3u8.Split('\n');
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string streamM3u8Url = lines.FirstOrDefault(x => x.EndsWith(".m3u8"));
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if (!string.IsNullOrEmpty(streamM3u8Url))
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{
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string streamM3u8 = wc.DownloadString(streamM3u8Url);
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if (!string.IsNullOrEmpty(streamM3u8Url))
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{
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if (streamM3u8.Contains(AdSignifier))
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{
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Console.WriteLine("has ad " + DateTime.Now.TimeOfDay);
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NotifyWatchedAd(uniqueId, streamM3u8);
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}
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else
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{
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Console.WriteLine("no ad " + DateTime.Now.TimeOfDay);
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}
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}
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else
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{
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Console.WriteLine("Failed to fetch streamM3u8Url");
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}
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}
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else
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{
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Console.WriteLine("Failed to find streamM3u8Url");
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}
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}
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else
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{
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Console.WriteLine("Failed to fetch encodingsM3u8");
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}
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}
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else
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{
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Console.WriteLine("Failed to get stream token");
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}
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}
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Thread.Sleep(LoopDelay);
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}
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}
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static Dictionary<string, string> ParseAttributes(string tag)
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{
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// TODO: Improve this
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Dictionary<string, string> result = new Dictionary<string, string>();
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string[] splitted = tag.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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foreach (string str in splitted)
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{
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int index = str.IndexOf('=');
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if (index > 0)
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{
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result[str.Substring(0, index)] = str.Substring(index + 1).Trim('\"');
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}
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}
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return result;
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}
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static TValue GetOrDefault<TKey, TValue>(Dictionary<TKey, TValue> dict, TKey key, TValue defaultValue = default(TValue))
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{
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TValue result;
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if (dict.TryGetValue(key, out result))
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{
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return result;
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}
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return defaultValue;
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}
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static void SendGqlAdEvent(WebClient wc, string eventName, bool includeAdInfo, int adQuartile, int adPos, Dictionary<string, string> vals)
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{
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// TARG_eventName TARG_roll_type TARG_radToken TARG_adInfo
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// TARG_ad_id TARG_ad_position TARG_duration TARG_creative_id TARG_total_ads TARG_order_id TARG_line_item_id TARG_quartile
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string str = @"[{""operationName"":""ClientSideAdEventHandling_RecordAdEvent"",""variables"":{""input"":{""eventName"":""TARG_eventName"",""eventPayload"":""{\""player_mute\"":false,\""player_volume\"":0.5,\""visible\"":true,\""roll_type\"":\""TARG_roll_type\"",\""stitched\"":trueTARG_adInfo}"",""radToken"":""TARG_radToken""}},""extensions"":{""persistedQuery"":{""version"":1,""sha256Hash"":""7e6c69e6eb59f8ccb97ab73686f3d8b7d85a72a0298745ccd8bfc68e4054ca5b""}}}]";
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string strAdInfo = @",\""ad_id\"":\""TARG_ad_id\"",\""ad_position\"":TARG_ad_position,\""duration\"":TARG_duration,\""creative_id\"":\""TARG_creative_id\"",\""total_ads\"":TARG_total_ads,\""order_id\"":\""TARG_order_id\"",\""line_item_id\"":\""TARG_line_item_id\""TARG_quartile";
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vals["TARG_eventName"] = eventName;
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vals["TARG_quartile"] = adQuartile > 0 ? (@",\""quartile\"":" + adQuartile) : string.Empty;
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if (includeAdInfo)
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{
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foreach (KeyValuePair<string, string> val in vals)
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{
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strAdInfo = strAdInfo.Replace(val.Key, val.Value);
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}
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vals["TARG_adInfo"] = strAdInfo;
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}
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else
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{
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vals["TARG_adInfo"] = "";
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}
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foreach (KeyValuePair<string, string> val in vals)
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{
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str = str.Replace(val.Key, val.Value);
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}
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//Console.WriteLine(str);
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Console.WriteLine("SendGqlAdEvent " + eventName + " adinfo: " + includeAdInfo + " quartile: " + adQuartile + " adPos: " + adPos);
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wc.UploadString("https://gql.twitch.tv/gql", str);
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}
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static void NotifyWatchedAd(string uniqueId, string streamM3u8)
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{
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string[] lines = streamM3u8.Split('\n');
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for (int i = 0; i < lines.Length; i++)
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{
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if (lines[i].Contains(AdSignifier))
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{
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Dictionary<string, string> attr = ParseAttributes(lines[i]);
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Dictionary<string, string> vals = new Dictionary<string, string>();
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vals["TARG_roll_type"] = GetOrDefault(attr, "X-TV-TWITCH-AD-ROLL-TYPE", "preroll").ToLower();
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vals["TARG_radToken"] = GetOrDefault(attr, "X-TV-TWITCH-AD-RADS-TOKEN");
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vals["TARG_ad_id"] = GetOrDefault(attr, "X-TV-TWITCH-AD-ADVERTISER-ID");
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vals["TARG_duration"] = "30";
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vals["TARG_creative_id"] = GetOrDefault(attr, "X-TV-TWITCH-AD-CREATIVE-ID");
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vals["TARG_total_ads"] = GetOrDefault(attr, "X-TV-TWITCH-AD-POD-LENGTH", "1");
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vals["TARG_order_id"] = GetOrDefault(attr, "X-TV-TWITCH-AD-ORDER-ID");
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vals["TARG_line_item_id"] = GetOrDefault(attr, "X-TV-TWITCH-AD-LINE-ITEM-ID");
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using (WebClient wc = new WebClient())
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{
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wc.Proxy = null;
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wc.Headers["Client-Id"] = ClientID;
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wc.Headers["X-Device-Id"] = uniqueId;
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wc.Headers["accept"] = "*/*";
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wc.Headers["accept-encoding"] = "gzip, deflate, br";
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wc.Headers["accept-language"] = "en-us";
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wc.Headers["content-type"] = "text/plain; charset=UTF-8";
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wc.Headers["origin"] = "https://www.twitch.tv";
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wc.Headers["referer"] = "https://www.twitch.tv/";
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wc.Headers["user-agent"] = UserAgent;
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int totalAds = int.Parse(vals["TARG_total_ads"]);
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for (int adPos = 0; adPos < totalAds; adPos++)
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{
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vals["TARG_ad_position"] = adPos.ToString();
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SendGqlAdEvent(wc, "video_ad_impression", true, 0, adPos, vals);
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for (int quartile = 1; quartile <= 4; quartile++)
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{
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SendGqlAdEvent(wc, "video_ad_quartile_complete", true, quartile, adPos, vals);
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}
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SendGqlAdEvent(wc, "video_ad_pod_complete", false, 0, adPos, vals);
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}
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}
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break;
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}
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}
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//Console.WriteLine(streamM3u8);
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}
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static string ProcessCookies(string str)
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{
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string uniqueId;
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return ProcessCookies(str, out uniqueId);
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}
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static string ProcessCookies(string str, out string uniqueId)
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{
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uniqueId = null;
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string result = string.Empty;
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string[] cookies = str.Split(',');
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foreach (string cookie in cookies)
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{
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if (cookie.Split(';')[0].Contains('='))
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{
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string[] splitted = cookie.Split(';')[0].Split('=');
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if (splitted.Length >= 2 && splitted[0] == "unique_id")
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{
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uniqueId = splitted[1];
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}
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result += cookie.Split(';')[0] + ";";
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}
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}
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return result;
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}
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[DataContract]
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public class TwitchAccessTokenOld
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{
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[DataMember]
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public string token { get; set; }
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[DataMember]
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public string sig { get; set; }
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}
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[DataContract]
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public class TwitchAccessToken
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{
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[DataMember]
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public TwitchAccessToken_data data { get; set; }
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}
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[DataContract]
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public class TwitchAccessToken_data
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{
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[DataMember]
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public TwitchAccessToken_streamPlaybackAccessToken streamPlaybackAccessToken { get; set; }
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}
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[DataContract]
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public class TwitchAccessToken_streamPlaybackAccessToken
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{
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[DataMember]
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public string value { get; set; }
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[DataMember]
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public string signature { get; set; }
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}
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class CookieAwareWebClient : WebClient
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{
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public CookieContainer CookieContainer { get; set; }
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public Uri Uri { get; set; }
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public string Cookies { get; private set; }
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public CookieAwareWebClient()
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: this(new CookieContainer())
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{
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}
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public CookieAwareWebClient(CookieContainer cookies)
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{
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this.CookieContainer = new CookieContainer();
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}
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protected override WebResponse GetWebResponse(WebRequest request)
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{
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WebResponse response = base.GetWebResponse(request);
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string setCookieHeader = response.Headers.Get("Set-Cookie");
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Cookies = setCookieHeader;
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return response;
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}
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}
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static class JSONSerializer<TType> where TType : class
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{
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public static TType DeSerialize(string json)
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{
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return TinyJson.JSONParser.FromJson<TType>(json);
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}
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}
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}
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}
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namespace TinyJson
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{
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// Really simple JSON parser in ~300 lines
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// - Attempts to parse JSON files with minimal GC allocation
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// - Nice and simple "[1,2,3]".FromJson<List<int>>() API
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// - Classes and structs can be parsed too!
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// class Foo { public int Value; }
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// "{\"Value\":10}".FromJson<Foo>()
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// - Can parse JSON without type information into Dictionary<string,object> and List<object> e.g.
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// "[1,2,3]".FromJson<object>().GetType() == typeof(List<object>)
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// "{\"Value\":10}".FromJson<object>().GetType() == typeof(Dictionary<string,object>)
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// - No JIT Emit support to support AOT compilation on iOS
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// - Attempts are made to NOT throw an exception if the JSON is corrupted or invalid: returns null instead.
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// - Only public fields and property setters on classes/structs will be written to
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//
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// Limitations:
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// - No JIT Emit support to parse structures quickly
|
||||
// - Limited to parsing <2GB JSON files (due to int.MaxValue)
|
||||
// - Parsing of abstract classes or interfaces is NOT supported and will throw an exception.
|
||||
public static class JSONParser
|
||||
{
|
||||
[ThreadStatic] static Stack<List<string>> splitArrayPool;
|
||||
[ThreadStatic] static StringBuilder stringBuilder;
|
||||
[ThreadStatic] static Dictionary<Type, Dictionary<string, FieldInfo>> fieldInfoCache;
|
||||
[ThreadStatic] static Dictionary<Type, Dictionary<string, PropertyInfo>> propertyInfoCache;
|
||||
|
||||
public static T FromJson<T>(this string json)
|
||||
{
|
||||
// Initialize, if needed, the ThreadStatic variables
|
||||
if (propertyInfoCache == null) propertyInfoCache = new Dictionary<Type, Dictionary<string, PropertyInfo>>();
|
||||
if (fieldInfoCache == null) fieldInfoCache = new Dictionary<Type, Dictionary<string, FieldInfo>>();
|
||||
if (stringBuilder == null) stringBuilder = new StringBuilder();
|
||||
if (splitArrayPool == null) splitArrayPool = new Stack<List<string>>();
|
||||
|
||||
//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());
|
||||
}
|
||||
|
||||
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();
|
||||
if (json.Length == 2)
|
||||
return splitArray;
|
||||
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;
|
||||
StringBuilder parseStringBuilder = new StringBuilder(json.Length);
|
||||
for (int i = 1; i < json.Length - 1; ++i)
|
||||
{
|
||||
if (json[i] == '\\' && i + 1 < json.Length - 1)
|
||||
{
|
||||
int j = "\"\\nrtbf/".IndexOf(json[i + 1]);
|
||||
if (j >= 0)
|
||||
{
|
||||
parseStringBuilder.Append("\"\\\n\r\t\b\f/"[j]);
|
||||
++i;
|
||||
continue;
|
||||
}
|
||||
if (json[i + 1] == 'u' && i + 5 < json.Length - 1)
|
||||
{
|
||||
UInt32 c = 0;
|
||||
if (UInt32.TryParse(json.Substring(i + 2, 4), System.Globalization.NumberStyles.AllowHexSpecifier, null, out c))
|
||||
{
|
||||
parseStringBuilder.Append((char)c);
|
||||
i += 5;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
parseStringBuilder.Append(json[i]);
|
||||
}
|
||||
return parseStringBuilder.ToString();
|
||||
}
|
||||
if (type.IsPrimitive)
|
||||
{
|
||||
var result = Convert.ChangeType(json, type, System.Globalization.CultureInfo.InvariantCulture);
|
||||
return result;
|
||||
}
|
||||
if (type == typeof(decimal))
|
||||
{
|
||||
decimal result;
|
||||
decimal.TryParse(json, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.InvariantCulture, out result);
|
||||
return result;
|
||||
}
|
||||
if (json == "null")
|
||||
{
|
||||
return null;
|
||||
}
|
||||
if (type.IsEnum)
|
||||
{
|
||||
if (json[0] == '"')
|
||||
json = json.Substring(1, json.Length - 2);
|
||||
try
|
||||
{
|
||||
return Enum.Parse(type, json, false);
|
||||
}
|
||||
catch
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
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[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[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, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.InvariantCulture, 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 Dictionary<string, T> CreateMemberNameDictionary<T>(T[] members) where T : MemberInfo
|
||||
{
|
||||
Dictionary<string, T> nameToMember = new Dictionary<string, T>(StringComparer.OrdinalIgnoreCase);
|
||||
for (int i = 0; i < members.Length; i++)
|
||||
{
|
||||
T member = members[i];
|
||||
if (member.IsDefined(typeof(IgnoreDataMemberAttribute), true))
|
||||
continue;
|
||||
|
||||
string name = member.Name;
|
||||
if (member.IsDefined(typeof(DataMemberAttribute), true))
|
||||
{
|
||||
DataMemberAttribute dataMemberAttribute = (DataMemberAttribute)Attribute.GetCustomAttribute(member, typeof(DataMemberAttribute), true);
|
||||
if (!string.IsNullOrEmpty(dataMemberAttribute.Name))
|
||||
name = dataMemberAttribute.Name;
|
||||
}
|
||||
|
||||
nameToMember.Add(name, member);
|
||||
}
|
||||
|
||||
return nameToMember;
|
||||
}
|
||||
|
||||
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 = CreateMemberNameDictionary(type.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.FlattenHierarchy));
|
||||
fieldInfoCache.Add(type, nameToField);
|
||||
}
|
||||
if (!propertyInfoCache.TryGetValue(type, out nameToProperty))
|
||||
{
|
||||
nameToProperty = CreateMemberNameDictionary(type.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.FlattenHierarchy));
|
||||
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;
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user