Merge branch 'add-mod-build-config' into develop

1 files changed, 97 insertions, 0 deletions

diff --git a/src/SMAPI.Web/Framework/ModRepositories/GitHubRepository.cs b/src/SMAPI.Web/Framework/ModRepositories/GitHubRepository.cs
new file mode 100644
index 00000000..174fb79a
--- /dev/null
+++ b/src/SMAPI.Web/Framework/ModRepositories/GitHubRepository.cs
@@ -0,0 +1,97 @@
+using System;
+using System.Net;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+using Pathoschild.Http.Client;
+using StardewModdingAPI.Models;
+
+namespace StardewModdingAPI.Web.Framework.ModRepositories
+{
+    /// <summary>An HTTP client for fetching mod metadata from GitHub project releases.</summary>
+    internal class GitHubRepository : RepositoryBase
+    {
+        /*********
+        ** Properties
+        *********/
+        /// <summary>The URL for a Nexus Mods API query excluding the base URL, where {0} is the mod ID.</summary>
+        private readonly string ReleaseUrlFormat;
+
+        /// <summary>The underlying HTTP client.</summary>
+        private readonly IClient Client;
+
+
+        /*********
+        ** Public methods
+        *********/
+        /// <summary>Construct an instance.</summary>
+        /// <param name="vendorKey">The unique key for this vendor.</param>
+        /// <param name="baseUrl">The base URL for the Nexus Mods API.</param>
+        /// <param name="releaseUrlFormat">The URL for a Nexus Mods API query excluding the <paramref name="baseUrl"/>, where {0} is the mod ID.</param>
+        /// <param name="userAgent">The user agent for the API client.</param>
+        /// <param name="acceptHeader">The Accept header value expected by the GitHub API.</param>
+        /// <param name="username">The username with which to authenticate to the GitHub API.</param>
+        /// <param name="password">The password with which to authenticate to the GitHub API.</param>
+        public GitHubRepository(string vendorKey, string baseUrl, string releaseUrlFormat, string userAgent, string acceptHeader, string username, string password)
+            : base(vendorKey)
+        {
+            this.ReleaseUrlFormat = releaseUrlFormat;
+
+            this.Client = new FluentClient(baseUrl)
+                .SetUserAgent(userAgent)
+                .AddDefault(req => req.WithHeader("Accept", acceptHeader));
+            if (!string.IsNullOrWhiteSpace(username))
+                this.Client = this.Client.SetBasicAuthentication(username, password);
+        }
+
+        /// <summary>Get metadata about a mod in the repository.</summary>
+        /// <param name="id">The mod ID in this repository.</param>
+        public override async Task<ModInfoModel> GetModInfoAsync(string id)
+        {
+            // validate ID format
+            if (!id.Contains("/") || id.IndexOf("/", StringComparison.InvariantCultureIgnoreCase) != id.LastIndexOf("/", StringComparison.InvariantCultureIgnoreCase))
+                return new ModInfoModel($"The value '{id}' isn't a valid GitHub mod ID, must be a username and project name like 'Pathoschild/LookupAnything'.");
+
+            // fetch info
+            try
+            {
+                GitRelease release = await this.Client
+                    .GetAsync(string.Format(this.ReleaseUrlFormat, id))
+                    .As<GitRelease>();
+                return new ModInfoModel(id, this.NormaliseVersion(release.Tag), $"https://github.com/{id}/releases");
+            }
+            catch (ApiException ex) when (ex.Status == HttpStatusCode.NotFound)
+            {
+                return new ModInfoModel("Found no mod with this ID.");
+            }
+            catch (Exception ex)
+            {
+                return new ModInfoModel(ex.ToString());
+            }
+        }
+
+        /// <summary>Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.</summary>
+        public override void Dispose()
+        {
+            this.Client.Dispose();
+        }
+
+
+        /*********
+        ** Private models
+        *********/
+        /// <summary>Metadata about a GitHub release tag.</summary>
+        private class GitRelease
+        {
+            /*********
+            ** Accessors
+            *********/
+            /// <summary>The display name.</summary>
+            [JsonProperty("name")]
+            public string Name { get; set; }
+
+            /// <summary>The semantic version string.</summary>
+            [JsonProperty("tag_name")]
+            public string Tag { get; set; }
+        }
+    }
+}