Merge pull request #4 from dropbox/blake/versionCheck

Add version check during app initialization.

Source/DfBAdminToolkit/DfBAdminToolkit.csproj

@@ -138,6 +138,7 @@
     <Compile Include="Presenter\ProvisioningPresenter.cs" />
     <Compile Include="Presenter\SettingsPresenter.cs" />
     <Compile Include="Presenter\TextSearchPresenter.cs" />
+    <Compile Include="Services\GitHubService.cs" />
     <Compile Include="Tooltips.cs" />
     <Compile Include="View\DataMigrationView.cs">
       <SubType>Form</SubType>
@@ -157,6 +158,12 @@
     <Compile Include="View\DumpUserContentView.Designer.cs">
       <DependentUpon>DumpUserContentView.cs</DependentUpon>
     </Compile>
+    <Compile Include="View\VersionWindow.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="View\VersionWindow.Designer.cs">
+      <DependentUpon>VersionWindow.cs</DependentUpon>
+    </Compile>
     <Compile Include="View\GroupsView.cs">
       <SubType>Form</SubType>
     </Compile>
@@ -242,6 +249,9 @@
       <AutoGen>True</AutoGen>
       <DependentUpon>Resources.resx</DependentUpon>
     </Compile>
+    <EmbeddedResource Include="View\VersionWindow.resx">
+      <DependentUpon>VersionWindow.cs</DependentUpon>
+    </EmbeddedResource>
     <None Include="app.manifest">
       <SubType>Designer</SubType>
     </None>

Source/DfBAdminToolkit/Services/GitHubService.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using RestSharp;
+using Newtonsoft.Json;
+
+namespace DfBAdminToolkit.Services
+{
+    public class GitHubService
+    {
+
+        private readonly RestClient _client;
+
+        public GitHubService()
+        {
+
+            _client = new RestClient(@"https://api.github.com/");
+        }
+
+        public async Task<GitHubRelease> LatestRelease()
+        {
+            GitHubRelease release = new GitHubRelease();
+            string releasesPath = @"repos/dropbox/DropboxBusinessAdminTool/releases";
+            RestRequest request = new RestRequest(releasesPath, Method.GET);
+            IRestResponse response = await _client.ExecuteTaskAsync(request);
+            if (response.StatusCode == System.Net.HttpStatusCode.OK)
+            {
+                dynamic jsonData = JsonConvert.DeserializeObject<dynamic>(response.Content);
+                release.version = new Version(jsonData[0]["tag_name"].ToString());
+                release.name = jsonData[0]["name"];
+                release.description = jsonData[0]["body"];
+                release.releaseUri = new Uri(jsonData[0]["html_url"].ToString());
+                release.releaseDate = Convert.ToDateTime(jsonData[0]["published_at"].ToString());
+                // Look for a zip attachment that contains just the pre-built exe.
+                foreach (var asset in jsonData[0]["assets"])
+                {
+                    if (asset["content_type"] == "application/x-zip-compressed")
+                    {
+                        release.downloadUri = asset["browser_download_url"];
+                    }
+                }
+            }
+            else
+            {
+                release.version = new Version(0, 0, 0, 0);
+            }
+            return release;
+        }
+    }
+
+    public class GitHubRelease
+    {
+        public string name;
+        public string description;
+        public Version version;
+        public DateTime releaseDate;
+        public Uri releaseUri;
+        public Uri downloadUri;
+    }
+}

Source/DfBAdminToolkit/View/MainView.cs

@@ -4,6 +4,7 @@
     using Common.Services;
     using Model;
     using Presenter;
+    using Services;
     using System;
     using System.Net;
     using System.Collections.Generic;
@@ -86,6 +87,7 @@ public void Initialize() {
             {
                 this.UpdateTitleBarTeamStats();
             }
+            this.CheckLatestVersion();
         }
 
         public void ShowView() {
@@ -201,6 +203,25 @@ public void UpdateTitleBarTeamStats()
             this.Refresh();
         }
 
+        public async void CheckLatestVersion()
+        {
+            GitHubService service = new GitHubService();
+            Version currentVersion = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;  
+            GitHubRelease latestRelease = await service.LatestRelease();
+            if (latestRelease.version > currentVersion)
+            {
+                this.Hide();
+                VersionWindow versionWindow = new VersionWindow(latestRelease);
+                versionWindow.StartPosition = FormStartPosition.CenterScreen;
+                versionWindow.MinimizeBox = false;
+                versionWindow.MaximizeBox = false;
+                versionWindow.Show();
+                versionWindow.Activate();
+                versionWindow.FormClosed += (sender, e) => {
+                    this.Show();
+                };
+            }
+        }
 
         private void ExitToolStripMenuItem_Click(object sender, EventArgs e)
         {

Source/DfBAdminToolkit/View/VersionWindow.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using DfBAdminToolkit.Services;
+
+namespace DfBAdminToolkit.View
+{
+    public partial class VersionWindow : Form
+    {
+        private GitHubRelease _release;
+
+        public VersionWindow(GitHubRelease release)
+        {
+            _release = release;
+            InitializeComponent();
+            versionAlertText.Text = String.Format(@"Version {0} of the Admin Toolkit is now available!", _release.version.ToString());
+            versionDetails.Text = String.Format(@"Release Notes:{0}{1}", Environment.NewLine, _release.description);
+            if (_release.downloadUri != null)
+            {
+                downloadButton.Text = @"Download Release";
+            }
+            else
+            {
+                downloadButton.Text = @"View Details";
+            }
+            downloadButton.Focus();
+        }
+
+        private void downloadButton_Clicked(object sender, EventArgs e)
+        {
+            if (_release.downloadUri != null)
+            {
+                System.Diagnostics.Process.Start(_release.downloadUri.ToString());
+                Application.Exit();
+            }
+            else
+            {
+                System.Diagnostics.Process.Start(_release.releaseUri.ToString());
+            }
+            this.Close();
+        }
+
+        private void dismissButton_Click(object sender, EventArgs e)
+        {
+            this.Close();
+        }
+    }
+}