Implement plugin browser and downloader

Torch.API/Torch.API.csproj

@@ -39,6 +39,10 @@
       <HintPath>..\GameBinaries\HavokWrapper.dll</HintPath>
       <Private>False</Private>
     </Reference>
+    <Reference Include="Newtonsoft.Json, Version=10.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>..\packages\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="NLog, Version=4.0.0.0, Culture=neutral, PublicKeyToken=5120e14c03d0593c, processorArchitecture=MSIL">
       <HintPath>..\packages\NLog.4.4.12\lib\net45\NLog.dll</HintPath>
       <Private>True</Private>
@@ -189,6 +193,7 @@
     <Compile Include="Session\ITorchSessionManager.cs" />
     <Compile Include="Session\TorchSessionState.cs" />
     <Compile Include="TorchGameState.cs" />
+    <Compile Include="WebAPI\PluginQuery.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />

Torch.API/WebAPI/PluginQuery.cs

@@ -0,0 +1,159 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+using NLog;
+
+namespace Torch.API.WebAPI
+{
+    public class PluginQuery
+    {
+        private const string ALL_QUERY = "https://torchapi.net/api/plugins";
+        private const string PLUGIN_QUERY = "https://torchapi.net/api/plugins/{0}";
+        private readonly HttpClient _client;
+        private static readonly Logger Log = LogManager.GetCurrentClassLogger();
+
+        private static PluginQuery _instance;
+        public static PluginQuery Instance => _instance ?? (_instance = new PluginQuery());
+
+        private PluginQuery()
+        {
+            _client = new HttpClient();
+        }
+
+        public async Task<PluginResponse> QueryAll()
+        {
+            var h = await _client.GetAsync(ALL_QUERY);
+            if (!h.IsSuccessStatusCode)
+            {
+                Log.Error($"Plugin query returned response {h.StatusCode}");
+                return null;
+            }
+
+            var r = await h.Content.ReadAsStringAsync();
+
+            PluginResponse response;
+            try
+            {
+                response = JsonConvert.DeserializeObject<PluginResponse>(r);
+            }
+            catch (Exception ex)
+            {
+                Log.Error(ex, "Failed to deserialize plugin query response!");
+                return null;
+            }
+            return response;
+        }
+
+        public async Task<PluginFullItem> QueryOne(Guid guid)
+        {
+            return await QueryOne(guid.ToString());
+        }
+
+        public async Task<PluginFullItem> QueryOne(string guid)
+        {
+
+            var h = await _client.GetAsync(string.Format(PLUGIN_QUERY, guid));
+            if (!h.IsSuccessStatusCode)
+            {
+                Log.Error($"Plugin query returned response {h.StatusCode}");
+                return null;
+            }
+
+            var r = await h.Content.ReadAsStringAsync();
+
+            PluginFullItem response;
+            try
+            {
+                response = JsonConvert.DeserializeObject<PluginFullItem>(r);
+            }
+            catch (Exception ex)
+            {
+                Log.Error(ex, "Failed to deserialize plugin query response!");
+                return null;
+            }
+            return response;
+        }
+
+        public async Task<bool> DownloadPlugin(Guid guid)
+        {
+            return await DownloadPlugin(guid.ToString());
+        }
+
+        public async Task<bool> DownloadPlugin(string guid)
+        {
+            var item = await QueryOne(guid);
+            return await DownloadPlugin(item);
+        }
+
+        public async Task<bool> DownloadPlugin(PluginFullItem item)
+        {
+            try
+            {
+                var h = await _client.GetAsync(string.Format(PLUGIN_QUERY, item.ID));
+                string res = await h.Content.ReadAsStringAsync();
+                var response = JsonConvert.DeserializeObject<PluginFullItem>(res);
+                if (response.Versions.Length == 0)
+                {
+                    Log.Error($"Selected plugin {item.Name} does not have any versions to download!");
+                    return false;
+                }
+                var version = response.Versions.FirstOrDefault(v => v.Version == response.LatestVersion);
+                if (version == null)
+                {
+                    Log.Error($"Could not find latest version for selected plugin {item.Name}");
+                    return false;
+                }
+                var s = await _client.GetStreamAsync(version.URL);
+                using (var f = new FileStream($"Plugins\\{item.Name}.zip", FileMode.Create))
+                {
+                    await s.CopyToAsync(f);
+                    await f.FlushAsync();
+                }
+            }
+            catch (Exception ex)
+            {
+                Log.Error(ex, "Failed to download plugin!");
+            }
+
+            return true;
+        }
+    }
+
+    public class PluginResponse
+    {
+        public PluginItem[] Plugins;
+        public int Count;
+    }
+
+    public class PluginItem
+    {
+        public string ID;
+        public string Name;
+        public string Author;
+        public string Description;
+        public string LatestVersion;
+
+        public override string ToString()
+        {
+            return Name;
+        }
+    }
+
+    public class PluginFullItem : PluginItem
+    {
+        public VersionItem[] Versions;
+    }
+
+    public class VersionItem
+    {
+        public string Version;
+        public string Note;
+        public bool IsBeta;
+        public string URL;
+    }
+}

Torch.API/packages.config

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Mono.TextTransform" version="1.0.0" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net461" />
   <package id="NLog" version="4.4.12" targetFramework="net461" />
 </packages>