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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,179 @@ | ||
| using Newtonsoft.Json; | ||
| using System; | ||
| using System.Net; | ||
| using System.Net.Http; | ||
| using System.Net.Http.Headers; | ||
| using System.Text; | ||
| using System.Threading; | ||
| using System.Threading.Tasks; | ||
|
|
||
| namespace Rubberduck.Client.Abstract | ||
| { | ||
| public abstract class ApiClientBase : IDisposable | ||
| { | ||
| protected static readonly string UserAgentName = "Rubberduck"; | ||
| protected static readonly string BaseUrl = "https://api.rubberduckvba.com/api/v1/"; | ||
| protected static readonly string ContentTypeApplicationJson = "application/json"; | ||
| protected static readonly int MaxAttempts = 3; | ||
| protected static readonly TimeSpan RetryCooldownDelay = TimeSpan.FromSeconds(1); | ||
|
|
||
| protected readonly Lazy<HttpClient> _client; | ||
|
|
||
| protected ApiClientBase() | ||
| { | ||
| _client = new Lazy<HttpClient>(() => GetClient()); | ||
| } | ||
|
|
||
| protected HttpClient GetClient() | ||
| { | ||
| ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12; | ||
| var client = new HttpClient(); | ||
| return ConfigureClient(client); | ||
| } | ||
|
|
||
| protected virtual HttpClient ConfigureClient(HttpClient client) | ||
| { | ||
| var userAgentVersion = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString(3); | ||
| var userAgentHeader = new ProductInfoHeaderValue(UserAgentName, userAgentVersion); | ||
|
|
||
| client.DefaultRequestHeaders.UserAgent.Add(userAgentHeader); | ||
| return client; | ||
| } | ||
|
|
||
| protected virtual async Task<TResult> GetResponse<TResult>(string route, CancellationToken? cancellationToken = null) | ||
| { | ||
| var uri = new Uri($"{BaseUrl}{route}"); | ||
|
|
||
| var attempt = 0; | ||
| var token = cancellationToken ?? CancellationToken.None; | ||
|
|
||
| while (!token.IsCancellationRequested && attempt <= MaxAttempts) | ||
| { | ||
| attempt++; | ||
| var delay = attempt == 0 ? TimeSpan.Zero : RetryCooldownDelay; | ||
|
|
||
| var (success, result) = await TryGetResponse<TResult>(uri, delay, token); | ||
| if (success) | ||
| { | ||
| return result; | ||
| } | ||
| } | ||
|
|
||
| token.ThrowIfCancellationRequested(); | ||
| throw new InvalidOperationException($"API call failed to return a result after {attempt} attempts."); | ||
| } | ||
|
|
||
| private async Task<(bool, TResult)> TryGetResponse<TResult>(Uri uri, TimeSpan delay, CancellationToken token) | ||
| { | ||
| if (delay != TimeSpan.Zero) | ||
| { | ||
| await Task.Delay(delay); | ||
| } | ||
|
|
||
| token.ThrowIfCancellationRequested(); | ||
|
|
||
| try | ||
| { | ||
| using (var client = GetClient()) | ||
| { | ||
| using (var response = await client.GetAsync(uri)) | ||
| { | ||
| response.EnsureSuccessStatusCode(); | ||
| token.ThrowIfCancellationRequested(); | ||
|
|
||
| var content = await response.Content.ReadAsStringAsync(); | ||
| var result = JsonConvert.DeserializeObject<TResult>(content); | ||
|
|
||
| return (true, result); | ||
| } | ||
| } | ||
| } | ||
| catch (OperationCanceledException) | ||
| { | ||
| throw; | ||
| } | ||
| catch | ||
| { | ||
| return default; | ||
| } | ||
| } | ||
|
|
||
| protected virtual async Task<T> Post<T>(string route, T args, CancellationToken? cancellationToken = null) => await Post<T, T>(route, args, cancellationToken ?? CancellationToken.None); | ||
|
|
||
| protected virtual async Task<TResult> Post<TArgs, TResult>(string route, TArgs args, CancellationToken? cancellationToken = null) | ||
| { | ||
| var uri = new Uri($"{BaseUrl}{route}"); | ||
| string json; | ||
| try | ||
| { | ||
| json = JsonConvert.SerializeObject(args); | ||
| } | ||
| catch (Exception exception) | ||
| { | ||
| throw new ArgumentException("The specified arguments could not be serialized.", exception); | ||
| } | ||
|
|
||
| var attempt = 0; | ||
| var token = cancellationToken ?? CancellationToken.None; | ||
|
|
||
| while (!token.IsCancellationRequested && attempt <= MaxAttempts) | ||
| { | ||
| attempt++; | ||
| var delay = attempt == 0 ? TimeSpan.Zero : RetryCooldownDelay; | ||
|
|
||
| var (success, result) = await TryPost<TResult>(uri, json, delay, token); | ||
| if (success) | ||
| { | ||
| return result; | ||
| } | ||
| } | ||
|
|
||
| token.ThrowIfCancellationRequested(); | ||
| throw new InvalidOperationException($"API call failed to return a result after {attempt} attempts."); | ||
| } | ||
|
|
||
| private async Task<(bool, TResult)> TryPost<TResult>(Uri uri, string body, TimeSpan delay, CancellationToken token) | ||
| { | ||
| if (delay != TimeSpan.Zero) | ||
| { | ||
| await Task.Delay(delay); | ||
| } | ||
|
|
||
| token.ThrowIfCancellationRequested(); | ||
|
|
||
| try | ||
| { | ||
| using (var client = GetClient()) | ||
| { | ||
| var content = new StringContent(body, Encoding.UTF8, ContentTypeApplicationJson); | ||
| using (var response = await client.PostAsync(uri, content, token)) | ||
| { | ||
| response.EnsureSuccessStatusCode(); | ||
| token.ThrowIfCancellationRequested(); | ||
|
|
||
| var jsonResult = await response.Content.ReadAsStringAsync(); | ||
| var result = JsonConvert.DeserializeObject<TResult>(jsonResult); | ||
|
|
||
| return (true, result); | ||
| } | ||
| } | ||
| } | ||
| catch (OperationCanceledException) | ||
| { | ||
| throw; | ||
| } | ||
| catch | ||
| { | ||
| return default; | ||
| } | ||
| } | ||
|
|
||
| public void Dispose() | ||
| { | ||
| if (_client.IsValueCreated) | ||
| { | ||
| _client.Value.Dispose(); | ||
| } | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Threading; | ||
| using System.Threading.Tasks; | ||
| using Rubberduck.Client.Abstract; | ||
|
|
||
| namespace Rubberduck.VersionCheck | ||
| { | ||
| public class PublicApiClient : ApiClientBase | ||
| { | ||
| private static readonly string PublicTagsEndPoint = "public/tags"; | ||
|
|
||
| public async Task<IEnumerable<Tag>> GetLatestTagsAsync(CancellationToken token) | ||
| { | ||
| return await GetResponse<Tag[]>(PublicTagsEndPoint, token); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
|
|
||
| namespace Rubberduck.VersionCheck | ||
| { | ||
| public class Tag | ||
| { | ||
| public string Name { get; set; } | ||
| public DateTime DateCreated { get; set; } | ||
| public string InstallerDownloadUrl { get; set; } | ||
| public int InstallerDownloads { get; set; } | ||
| public bool IsPreRelease { get; set; } | ||
|
|
||
| public virtual ICollection<TagAsset> TagAssets { get; set; } = new List<TagAsset>(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| namespace Rubberduck.VersionCheck | ||
| { | ||
| public class TagAsset | ||
| { | ||
| public int TagId { get; set; } | ||
| public string Name { get; set; } | ||
| public string DownloadUrl { get; set; } | ||
| } | ||
| } |
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