Winify – Diff between revs 61 and 62
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Rev 61 | Rev 62 | |||
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1 | using System; |
1 | using System; |
|
2 | using System.Collections.Generic; |
2 | using System.Collections.Generic; |
|
3 | using System.Diagnostics; |
3 | using System.Diagnostics; |
|
4 | using System.Drawing; |
4 | using System.Drawing; |
|
5 | using System.Globalization; |
5 | using System.Globalization; |
|
6 | using System.IO; |
6 | using System.IO; |
|
7 | using System.Linq; |
7 | using System.Linq; |
|
8 | using System.Net; |
8 | using System.Net; |
|
9 | using System.Net.Http; |
9 | using System.Net.Http; |
|
10 | using System.Net.Http.Headers; |
10 | using System.Net.Http.Headers; |
|
11 | using System.Runtime.Caching; |
11 | using System.Runtime.Caching; |
|
12 | using System.Runtime.CompilerServices; |
12 | using System.Runtime.CompilerServices; |
|
13 | using System.Security.Authentication; |
13 | using System.Security.Authentication; |
|
14 | using System.Security.Cryptography.X509Certificates; |
14 | using System.Security.Cryptography.X509Certificates; |
|
15 | using System.Text; |
15 | using System.Text; |
|
16 | using System.Threading; |
16 | using System.Threading; |
|
17 | using System.Threading.Tasks; |
17 | using System.Threading.Tasks; |
|
18 | using System.Threading.Tasks.Dataflow; |
18 | using System.Threading.Tasks.Dataflow; |
|
19 | using System.Windows.Forms; |
19 | using System.Windows.Forms; |
|
20 | using Newtonsoft.Json; |
20 | using Newtonsoft.Json; |
|
21 | using Serilog; |
21 | using Serilog; |
|
22 | using Servers; |
22 | using Servers; |
|
23 | using WebSocketSharp; |
23 | using WebSocketSharp; |
|
24 | using WebSocketSharp.Net; |
24 | using WebSocketSharp.Net; |
|
25 | using Winify.Utilities; |
25 | using Winify.Utilities; |
|
26 | using ErrorEventArgs = WebSocketSharp.ErrorEventArgs; |
26 | using ErrorEventArgs = WebSocketSharp.ErrorEventArgs; |
|
27 | using NetworkCredential = System.Net.NetworkCredential; |
27 | using NetworkCredential = System.Net.NetworkCredential; |
|
28 | |
28 | |
|
29 | namespace Winify.Gotify |
29 | namespace Winify.Gotify |
|
30 | { |
30 | { |
|
31 | public class GotifyConnection : IDisposable |
31 | public class GotifyConnection : IDisposable |
|
32 | { |
32 | { |
|
33 | #region Public Events & Delegates |
33 | #region Public Events & Delegates |
|
34 | |
34 | |
|
35 | public event EventHandler<GotifyNotificationEventArgs> GotifyNotification; |
35 | public event EventHandler<GotifyNotificationEventArgs> GotifyNotification; |
|
36 | |
36 | |
|
37 | #endregion |
37 | #endregion |
|
38 | |
38 | |
|
39 | #region Private Delegates, Events, Enums, Properties, Indexers and Fields |
39 | #region Private Delegates, Events, Enums, Properties, Indexers and Fields |
|
40 | |
40 | |
|
41 | private readonly Server _server; |
41 | private readonly Server _server; |
|
42 | |
42 | |
|
43 | private CancellationToken _cancellationToken; |
43 | private CancellationToken _cancellationToken; |
|
44 | |
44 | |
|
45 | private CancellationTokenSource _cancellationTokenSource; |
45 | private CancellationTokenSource _cancellationTokenSource; |
|
46 | |
46 | |
|
47 | private Task _runTask; |
47 | private Task _runTask; |
|
48 | |
48 | |
|
49 | private HttpClient _httpClient; |
49 | private HttpClient _httpClient; |
|
50 | |
50 | |
|
51 | private readonly Uri _webSocketsUri; |
51 | private readonly Uri _webSocketsUri; |
|
52 | |
52 | |
|
53 | private readonly Uri _httpUri; |
53 | private readonly Uri _httpUri; |
|
54 | private WebSocket _webSocketSharp; |
54 | private WebSocket _webSocketSharp; |
|
55 | private readonly Configuration.Configuration _configuration; |
55 | private readonly Configuration.Configuration _configuration; |
|
56 | private Task _initTask; |
56 | private Task _initTask; |
|
57 | private IDisposable _tplRetrievePastMessagesLink; |
57 | private IDisposable _tplRetrievePastMessagesLink; |
|
58 | private IDisposable _tplWebSocketsBufferBlockTransformLink; |
58 | private IDisposable _tplWebSocketsBufferBlockTransformLink; |
|
59 | private IDisposable _tplWebSocketsTransformActionLink; |
59 | private IDisposable _tplWebSocketsTransformActionLink; |
|
60 | private IDisposable _tplWebSocketsTransformActionNullLink; |
60 | private IDisposable _tplWebSocketsTransformActionNullLink; |
|
61 | private readonly BufferBlock<byte[]> _webSocketMessageBufferBlock; |
61 | private readonly BufferBlock<byte[]> _webSocketMessageBufferBlock; |
|
62 | private readonly Stopwatch _webSocketsClientPingStopWatch; |
62 | private readonly Stopwatch _webSocketsClientPingStopWatch; |
|
63 | private readonly ScheduledContinuation _webSocketsServerResponseScheduledContinuation; |
63 | private readonly ScheduledContinuation _webSocketsServerResponseScheduledContinuation; |
|
64 | |
64 | |
|
65 | private readonly MemoryCache _applicationImageCache; |
65 | private readonly MemoryCache _applicationImageCache; |
|
66 | #endregion |
66 | #endregion |
|
67 | |
67 | |
|
68 | #region Constructors, Destructors and Finalizers |
68 | #region Constructors, Destructors and Finalizers |
|
69 | |
69 | |
|
70 | private GotifyConnection() |
70 | private GotifyConnection() |
|
71 | { |
71 | { |
|
72 | _applicationImageCache = new MemoryCache("GotifyApplicationImageCache"); |
72 | _applicationImageCache = new MemoryCache("GotifyApplicationImageCache"); |
|
73 | _webSocketsServerResponseScheduledContinuation = new ScheduledContinuation(); |
73 | _webSocketsServerResponseScheduledContinuation = new ScheduledContinuation(); |
|
74 | _webSocketsClientPingStopWatch = new Stopwatch(); |
74 | _webSocketsClientPingStopWatch = new Stopwatch(); |
|
75 | |
75 | |
|
76 | _webSocketMessageBufferBlock = new BufferBlock<byte[]>(new DataflowBlockOptions { CancellationToken = _cancellationToken }); |
76 | _webSocketMessageBufferBlock = new BufferBlock<byte[]>(new DataflowBlockOptions { CancellationToken = _cancellationToken }); |
|
77 | var webSocketTransformBlock = new TransformBlock<byte[], GotifyMessage>(bytes => |
77 | var webSocketTransformBlock = new TransformBlock<byte[], GotifyMessage>(bytes => |
|
78 | { |
78 | { |
|
79 | if (bytes.Length == 0) |
79 | if (bytes.Length == 0) |
|
80 | { |
80 | { |
|
81 | return null; |
81 | return null; |
|
82 | } |
82 | } |
|
83 | |
83 | |
|
84 | var message = Encoding.UTF8.GetString(bytes, 0, bytes.Length); |
84 | var message = Encoding.UTF8.GetString(bytes, 0, bytes.Length); |
|
85 | |
85 | |
|
86 | GotifyMessage gotifyNotification; |
86 | GotifyMessage gotifyNotification; |
|
87 | |
87 | |
|
88 | try |
88 | try |
|
89 | { |
89 | { |
|
90 | gotifyNotification = JsonConvert.DeserializeObject<GotifyMessage>(message); |
90 | gotifyNotification = JsonConvert.DeserializeObject<GotifyMessage>(message); |
|
91 | } |
91 | } |
|
92 | catch (JsonSerializationException exception) |
92 | catch (JsonSerializationException exception) |
|
93 | { |
93 | { |
|
94 | Log.Warning($"Could not deserialize notification: {exception.Message}"); |
94 | Log.Warning($"Could not deserialize notification: {exception.Message}"); |
|
95 | |
95 | |
|
96 | return null; |
96 | return null; |
|
97 | } |
97 | } |
|
98 | |
98 | |
|
99 | if (gotifyNotification == null) |
99 | if (gotifyNotification == null) |
|
100 | { |
100 | { |
|
101 | Log.Warning($"Could not deserialize gotify notification: {message}"); |
101 | Log.Warning($"Could not deserialize gotify notification: {message}"); |
|
102 | |
102 | |
|
103 | return null; |
103 | return null; |
|
104 | } |
104 | } |
|
105 | |
105 | |
|
106 | return gotifyNotification; |
106 | return gotifyNotification; |
|
107 | |
107 | |
|
108 | }, new ExecutionDataflowBlockOptions { CancellationToken = _cancellationToken }); |
108 | }, new ExecutionDataflowBlockOptions { CancellationToken = _cancellationToken }); |
|
109 | |
109 | |
|
110 | var webSocketActionBlock = new ActionBlock<GotifyMessage>(async message => |
110 | var webSocketActionBlock = new ActionBlock<GotifyMessage>(async message => |
|
111 | { |
111 | { |
|
112 | message.Server = _server; |
112 | message.Server = _server; |
|
113 | |
113 | |
|
114 | var cachedImage = _applicationImageCache.Get($"{message.AppId}"); |
114 | var cachedImage = _applicationImageCache.Get($"{message.AppId}"); |
|
115 | if (cachedImage is Image applicationImage) |
115 | if (cachedImage is Image applicationImage) |
|
116 | { |
116 | { |
|
117 | GotifyNotification?.Invoke(this, |
117 | GotifyNotification?.Invoke(this, |
|
118 | new GotifyNotificationEventArgs(message, applicationImage)); |
118 | new GotifyNotificationEventArgs(message, applicationImage)); |
|
119 | return; |
119 | return; |
|
120 | } |
120 | } |
|
121 | |
121 | |
|
122 | using (var imageStream = await RetrieveGotifyApplicationImage(message.AppId, _cancellationToken)) |
122 | using (var imageStream = await RetrieveGotifyApplicationImage(message.AppId, _cancellationToken)) |
|
123 | { |
123 | { |
|
124 | if (imageStream == null || imageStream.Length == 0) |
124 | if (imageStream == null || imageStream.Length == 0) |
|
125 | { |
125 | { |
|
126 | Log.Warning("Could not find any application image for notification"); |
126 | Log.Warning("Could not find any application image for notification"); |
|
127 | return; |
127 | return; |
|
128 | } |
128 | } |
|
129 | |
129 | |
|
130 | var image = Image.FromStream(imageStream); |
130 | var image = Image.FromStream(imageStream); |
|
- | 131 | |
||
- | 132 | var clone = image.Clone(); |
||
131 | |
133 | |
|
132 | _applicationImageCache.Add($"{message.AppId}", image.Clone(), |
134 | _applicationImageCache.Add($"{message.AppId}", clone, |
|
133 | new CacheItemPolicy |
135 | new CacheItemPolicy |
|
134 | { |
136 | { |
|
135 | SlidingExpiration = TimeSpan.FromHours(1) |
137 | SlidingExpiration = TimeSpan.FromHours(1) |
|
136 | }); |
138 | }); |
|
137 | |
139 | |
|
138 | GotifyNotification?.Invoke(this, |
140 | GotifyNotification?.Invoke(this, |
|
139 | new GotifyNotificationEventArgs(message, image)); |
141 | new GotifyNotificationEventArgs(message, image)); |
|
140 | } |
142 | } |
|
141 | |
143 | |
|
142 | Log.Debug($"Notification message received: {message.Message}"); |
144 | Log.Debug($"Notification message received: {message.Message}"); |
|
143 | |
145 | |
|
144 | }, new ExecutionDataflowBlockOptions { CancellationToken = _cancellationToken }); |
146 | }, new ExecutionDataflowBlockOptions { CancellationToken = _cancellationToken }); |
|
145 | |
147 | |
|
146 | _tplWebSocketsBufferBlockTransformLink = _webSocketMessageBufferBlock.LinkTo(webSocketTransformBlock, |
148 | _tplWebSocketsBufferBlockTransformLink = _webSocketMessageBufferBlock.LinkTo(webSocketTransformBlock, |
|
147 | new DataflowLinkOptions { PropagateCompletion = true }); |
149 | new DataflowLinkOptions { PropagateCompletion = true }); |
|
148 | _tplWebSocketsTransformActionLink = webSocketTransformBlock.LinkTo(webSocketActionBlock, |
150 | _tplWebSocketsTransformActionLink = webSocketTransformBlock.LinkTo(webSocketActionBlock, |
|
149 | new DataflowLinkOptions { PropagateCompletion = true }, message => message != null); |
151 | new DataflowLinkOptions { PropagateCompletion = true }, message => message != null); |
|
150 | _tplWebSocketsTransformActionNullLink = webSocketTransformBlock.LinkTo(DataflowBlock.NullTarget<GotifyMessage>(), |
152 | _tplWebSocketsTransformActionNullLink = webSocketTransformBlock.LinkTo(DataflowBlock.NullTarget<GotifyMessage>(), |
|
151 | new DataflowLinkOptions() { PropagateCompletion = true }); |
153 | new DataflowLinkOptions() { PropagateCompletion = true }); |
|
152 | } |
154 | } |
|
153 | |
155 | |
|
154 | public GotifyConnection(Server server, Configuration.Configuration configuration) : this() |
156 | public GotifyConnection(Server server, Configuration.Configuration configuration) : this() |
|
155 | { |
157 | { |
|
156 | _server = server; |
158 | _server = server; |
|
157 | _configuration = configuration; |
159 | _configuration = configuration; |
|
158 | |
160 | |
|
159 | ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12; |
161 | ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12; |
|
160 | var httpClientHandler = new HttpClientHandler |
162 | var httpClientHandler = new HttpClientHandler |
|
161 | { |
163 | { |
|
162 | // mono does not implement this |
164 | // mono does not implement this |
|
163 | //SslProtocols = SslProtocols.Tls12 |
165 | //SslProtocols = SslProtocols.Tls12 |
|
164 | }; |
166 | }; |
|
165 | |
167 | |
|
166 | _httpClient = new HttpClient(httpClientHandler); |
168 | _httpClient = new HttpClient(httpClientHandler); |
|
167 | if (_configuration.IgnoreSelfSignedCertificates) |
169 | if (_configuration.IgnoreSelfSignedCertificates) |
|
168 | httpClientHandler.ServerCertificateCustomValidationCallback = |
170 | httpClientHandler.ServerCertificateCustomValidationCallback = |
|
169 | (httpRequestMessage, cert, cetChain, policyErrors) => true; |
171 | (httpRequestMessage, cert, cetChain, policyErrors) => true; |
|
170 | |
172 | |
|
171 | if (_configuration.Proxy.Enable) |
173 | if (_configuration.Proxy.Enable) |
|
172 | httpClientHandler.Proxy = new WebProxy(_configuration.Proxy.Url, false, new string[] { }, |
174 | httpClientHandler.Proxy = new WebProxy(_configuration.Proxy.Url, false, new string[] { }, |
|
173 | new NetworkCredential(_configuration.Proxy.Username, _configuration.Proxy.Password)); |
175 | new NetworkCredential(_configuration.Proxy.Username, _configuration.Proxy.Password)); |
|
174 | |
176 | |
|
175 | _httpClient = new HttpClient(httpClientHandler); |
177 | _httpClient = new HttpClient(httpClientHandler); |
|
176 | if (!string.IsNullOrEmpty(_server.Username) && !string.IsNullOrEmpty(_server.Password)) |
178 | if (!string.IsNullOrEmpty(_server.Username) && !string.IsNullOrEmpty(_server.Password)) |
|
177 | _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", |
179 | _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", |
|
178 | Convert.ToBase64String(Encoding.Default.GetBytes($"{_server.Username}:{_server.Password}"))); |
180 | Convert.ToBase64String(Encoding.Default.GetBytes($"{_server.Username}:{_server.Password}"))); |
|
179 | |
181 | |
|
180 | if (!Uri.TryCreate(_server.Url, UriKind.Absolute, out _httpUri)) |
182 | if (!Uri.TryCreate(_server.Url, UriKind.Absolute, out _httpUri)) |
|
181 | { |
183 | { |
|
182 | Log.Error($"No HTTP URL could be built out of the supplied server URI {_server.Url}"); |
184 | Log.Error($"No HTTP URL could be built out of the supplied server URI {_server.Url}"); |
|
183 | return; |
185 | return; |
|
184 | } |
186 | } |
|
185 | |
187 | |
|
186 | // Build the web sockets URI. |
188 | // Build the web sockets URI. |
|
187 | var webSocketsUriBuilder = new UriBuilder(_httpUri); |
189 | var webSocketsUriBuilder = new UriBuilder(_httpUri); |
|
188 | switch (webSocketsUriBuilder.Scheme.ToUpperInvariant()) |
190 | switch (webSocketsUriBuilder.Scheme.ToUpperInvariant()) |
|
189 | { |
191 | { |
|
190 | case "HTTP": |
192 | case "HTTP": |
|
191 | webSocketsUriBuilder.Scheme = "ws"; |
193 | webSocketsUriBuilder.Scheme = "ws"; |
|
192 | break; |
194 | break; |
|
193 | case "HTTPS": |
195 | case "HTTPS": |
|
194 | webSocketsUriBuilder.Scheme = "wss"; |
196 | webSocketsUriBuilder.Scheme = "wss"; |
|
195 | break; |
197 | break; |
|
196 | } |
198 | } |
|
197 | |
199 | |
|
198 | try |
200 | try |
|
199 | { |
201 | { |
|
200 | webSocketsUriBuilder.Path = Path.Combine(webSocketsUriBuilder.Path, "stream"); |
202 | webSocketsUriBuilder.Path = Path.Combine(webSocketsUriBuilder.Path, "stream"); |
|
201 | } |
203 | } |
|
202 | catch (ArgumentException exception) |
204 | catch (ArgumentException exception) |
|
203 | { |
205 | { |
|
204 | Log.Error( |
206 | Log.Error( |
|
205 | $"No WebSockets URL could be built from the provided URL {_server.Url} due to {exception.Message}"); |
207 | $"No WebSockets URL could be built from the provided URL {_server.Url} due to {exception.Message}"); |
|
206 | } |
208 | } |
|
207 | |
209 | |
|
208 | _webSocketsUri = webSocketsUriBuilder.Uri; |
210 | _webSocketsUri = webSocketsUriBuilder.Uri; |
|
209 | } |
211 | } |
|
210 | |
212 | |
|
211 | public void Dispose() |
213 | public void Dispose() |
|
212 | { |
214 | { |
|
213 | if (_cancellationTokenSource != null) |
215 | if (_cancellationTokenSource != null) |
|
214 | { |
216 | { |
|
215 | _cancellationTokenSource.Dispose(); |
217 | _cancellationTokenSource.Dispose(); |
|
216 | _cancellationTokenSource = null; |
218 | _cancellationTokenSource = null; |
|
217 | } |
219 | } |
|
218 | |
220 | |
|
219 | if (_tplWebSocketsBufferBlockTransformLink != null) |
221 | if (_tplWebSocketsBufferBlockTransformLink != null) |
|
220 | { |
222 | { |
|
221 | _tplWebSocketsBufferBlockTransformLink.Dispose(); |
223 | _tplWebSocketsBufferBlockTransformLink.Dispose(); |
|
222 | _tplWebSocketsBufferBlockTransformLink = null; |
224 | _tplWebSocketsBufferBlockTransformLink = null; |
|
223 | } |
225 | } |
|
224 | |
226 | |
|
225 | if (_tplWebSocketsTransformActionLink != null) |
227 | if (_tplWebSocketsTransformActionLink != null) |
|
226 | { |
228 | { |
|
227 | _tplWebSocketsTransformActionLink.Dispose(); |
229 | _tplWebSocketsTransformActionLink.Dispose(); |
|
228 | _tplWebSocketsTransformActionLink = null; |
230 | _tplWebSocketsTransformActionLink = null; |
|
229 | } |
231 | } |
|
230 | |
232 | |
|
231 | if (_tplWebSocketsTransformActionNullLink != null) |
233 | if (_tplWebSocketsTransformActionNullLink != null) |
|
232 | { |
234 | { |
|
233 | _tplWebSocketsTransformActionNullLink.Dispose(); |
235 | _tplWebSocketsTransformActionNullLink.Dispose(); |
|
234 | _tplWebSocketsTransformActionNullLink = null; |
236 | _tplWebSocketsTransformActionNullLink = null; |
|
235 | } |
237 | } |
|
236 | |
238 | |
|
237 | if (_tplRetrievePastMessagesLink != null) |
239 | if (_tplRetrievePastMessagesLink != null) |
|
238 | { |
240 | { |
|
239 | _tplRetrievePastMessagesLink.Dispose(); |
241 | _tplRetrievePastMessagesLink.Dispose(); |
|
240 | _tplRetrievePastMessagesLink = null; |
242 | _tplRetrievePastMessagesLink = null; |
|
241 | } |
243 | } |
|
242 | |
244 | |
|
243 | if (_webSocketSharp != null) |
245 | if (_webSocketSharp != null) |
|
244 | { |
246 | { |
|
245 | _webSocketSharp.Close(); |
247 | _webSocketSharp.Close(); |
|
246 | _webSocketSharp = null; |
248 | _webSocketSharp = null; |
|
247 | } |
249 | } |
|
248 | |
250 | |
|
249 | if (_httpClient != null) |
251 | if (_httpClient != null) |
|
250 | { |
252 | { |
|
251 | _httpClient.Dispose(); |
253 | _httpClient.Dispose(); |
|
252 | _httpClient = null; |
254 | _httpClient = null; |
|
253 | } |
255 | } |
|
254 | } |
256 | } |
|
255 | |
257 | |
|
256 | #endregion |
258 | #endregion |
|
257 | |
259 | |
|
258 | #region Public Methods |
260 | #region Public Methods |
|
259 | |
261 | |
|
260 | public void Start() |
262 | public void Start() |
|
261 | { |
263 | { |
|
262 | if (_webSocketsUri == null || _httpUri == null) |
264 | if (_webSocketsUri == null || _httpUri == null) |
|
263 | { |
265 | { |
|
264 | Log.Error("Could not start connection to server due to unreadable URLs"); |
266 | Log.Error("Could not start connection to server due to unreadable URLs"); |
|
265 | return; |
267 | return; |
|
266 | } |
268 | } |
|
267 | |
269 | |
|
268 | _cancellationTokenSource = new CancellationTokenSource(); |
270 | _cancellationTokenSource = new CancellationTokenSource(); |
|
269 | _cancellationToken = _cancellationTokenSource.Token; |
271 | _cancellationToken = _cancellationTokenSource.Token; |
|
270 | |
272 | |
|
271 | Connect(); |
273 | Connect(); |
|
272 | |
274 | |
|
273 | if (_configuration.RetrievePastNotificationHours != 0) |
275 | if (_configuration.RetrievePastNotificationHours != 0) |
|
274 | { |
276 | { |
|
275 | _initTask = RetrievePastMessages(_cancellationToken); |
277 | _initTask = RetrievePastMessages(_cancellationToken); |
|
276 | } |
278 | } |
|
277 | |
279 | |
|
278 | _runTask = HeartBeat(_cancellationToken); |
280 | _runTask = HeartBeat(_cancellationToken); |
|
279 | } |
281 | } |
|
280 | |
282 | |
|
281 | private void Connect() |
283 | private void Connect() |
|
282 | { |
284 | { |
|
283 | _webSocketSharp = new WebSocket(_webSocketsUri.AbsoluteUri); |
285 | _webSocketSharp = new WebSocket(_webSocketsUri.AbsoluteUri); |
|
284 | _webSocketSharp.EmitOnPing = true; |
286 | _webSocketSharp.EmitOnPing = true; |
|
285 | _webSocketSharp.WaitTime = TimeSpan.FromMinutes(1); |
287 | _webSocketSharp.WaitTime = TimeSpan.FromMinutes(1); |
|
286 | _webSocketSharp.SslConfiguration = new ClientSslConfiguration(_webSocketsUri.Host, |
288 | _webSocketSharp.SslConfiguration = new ClientSslConfiguration(_webSocketsUri.Host, |
|
287 | new X509CertificateCollection(new X509Certificate[] { }), SslProtocols.Tls12, false); |
289 | new X509CertificateCollection(new X509Certificate[] { }), SslProtocols.Tls12, false); |
|
288 | if (_configuration.Proxy.Enable) |
290 | if (_configuration.Proxy.Enable) |
|
289 | _webSocketSharp.SetProxy(_configuration.Proxy.Url, _configuration.Proxy.Username, |
291 | _webSocketSharp.SetProxy(_configuration.Proxy.Url, _configuration.Proxy.Username, |
|
290 | _configuration.Proxy.Password); |
292 | _configuration.Proxy.Password); |
|
291 | |
293 | |
|
292 | if (!string.IsNullOrEmpty(_server.Username) && !string.IsNullOrEmpty(_server.Password)) |
294 | if (!string.IsNullOrEmpty(_server.Username) && !string.IsNullOrEmpty(_server.Password)) |
|
293 | _webSocketSharp.SetCredentials(_server.Username, _server.Password, true); |
295 | _webSocketSharp.SetCredentials(_server.Username, _server.Password, true); |
|
294 | |
296 | |
|
295 | if (_configuration.IgnoreSelfSignedCertificates) |
297 | if (_configuration.IgnoreSelfSignedCertificates) |
|
296 | _webSocketSharp.SslConfiguration.ServerCertificateValidationCallback += |
298 | _webSocketSharp.SslConfiguration.ServerCertificateValidationCallback += |
|
297 | (sender, certificate, chain, errors) => true; |
299 | (sender, certificate, chain, errors) => true; |
|
298 | |
300 | |
|
299 | _webSocketSharp.Log.Output = (logData, s) => |
301 | _webSocketSharp.Log.Output = (logData, s) => |
|
300 | { |
302 | { |
|
301 | Log.Information($"WebSockets low level logging reported: {logData.Message}"); |
303 | Log.Information($"WebSockets low level logging reported: {logData.Message}"); |
|
302 | }; |
304 | }; |
|
303 | |
305 | |
|
304 | _webSocketSharp.OnMessage += WebSocketSharp_OnMessage; |
306 | _webSocketSharp.OnMessage += WebSocketSharp_OnMessage; |
|
305 | _webSocketSharp.OnError += WebSocketSharp_OnError; |
307 | _webSocketSharp.OnError += WebSocketSharp_OnError; |
|
306 | _webSocketSharp.OnOpen += WebSocketSharp_OnOpen; |
308 | _webSocketSharp.OnOpen += WebSocketSharp_OnOpen; |
|
307 | _webSocketSharp.OnClose += WebSocketSharp_OnClose; |
309 | _webSocketSharp.OnClose += WebSocketSharp_OnClose; |
|
308 | |
310 | |
|
309 | _webSocketSharp.ConnectAsync(); |
311 | _webSocketSharp.ConnectAsync(); |
|
310 | } |
312 | } |
|
311 | |
313 | |
|
312 | private void WebSocketSharp_OnClose(object sender, CloseEventArgs e) |
314 | private void WebSocketSharp_OnClose(object sender, CloseEventArgs e) |
|
313 | { |
315 | { |
|
314 | Log.Information( |
316 | Log.Information( |
|
315 | $"WebSockets connection to server {_webSocketsUri.AbsoluteUri} closed with reason {e.Reason}"); |
317 | $"WebSockets connection to server {_webSocketsUri.AbsoluteUri} closed with reason {e.Reason}"); |
|
316 | } |
318 | } |
|
317 | |
319 | |
|
318 | private void WebSocketSharp_OnOpen(object sender, EventArgs e) |
320 | private void WebSocketSharp_OnOpen(object sender, EventArgs e) |
|
319 | { |
321 | { |
|
320 | Log.Information($"WebSockets connection to server {_webSocketsUri.AbsoluteUri} is now open"); |
322 | Log.Information($"WebSockets connection to server {_webSocketsUri.AbsoluteUri} is now open"); |
|
321 | |
323 | |
|
322 | _webSocketsServerResponseScheduledContinuation.Schedule(TimeSpan.FromMinutes(1), OnUnresponsiveServer, _cancellationToken); |
324 | _webSocketsServerResponseScheduledContinuation.Schedule(TimeSpan.FromMinutes(1), OnUnresponsiveServer, _cancellationToken); |
|
323 | } |
325 | } |
|
324 | |
326 | |
|
325 | private void OnUnresponsiveServer() |
327 | private void OnUnresponsiveServer() |
|
326 | { |
328 | { |
|
327 | Log.Warning($"Server {_server} has not responded in a long while..."); |
329 | Log.Warning($"Server {_server} has not responded in a long while..."); |
|
328 | } |
330 | } |
|
329 | |
331 | |
|
330 | private async void WebSocketSharp_OnError(object sender, ErrorEventArgs e) |
332 | private async void WebSocketSharp_OnError(object sender, ErrorEventArgs e) |
|
331 | { |
333 | { |
|
332 | Log.Error( |
334 | Log.Error( |
|
333 | $"Connection to WebSockets server {_webSocketsUri.AbsoluteUri} terminated unexpectedly with message {e.Message}", |
335 | $"Connection to WebSockets server {_webSocketsUri.AbsoluteUri} terminated unexpectedly with message {e.Message}", |
|
334 | e.Exception); |
336 | e.Exception); |
|
335 | |
337 | |
|
336 | if (_cancellationToken.IsCancellationRequested) |
338 | if (_cancellationToken.IsCancellationRequested) |
|
337 | { |
339 | { |
|
338 | Stop(); |
340 | Stop(); |
|
339 | return; |
341 | return; |
|
340 | } |
342 | } |
|
341 | |
343 | |
|
342 | await Task.Delay(TimeSpan.FromSeconds(1), _cancellationToken); |
344 | await Task.Delay(TimeSpan.FromSeconds(1), _cancellationToken); |
|
343 | |
345 | |
|
344 | Log.Information($"Reconnecting to websocket server {_webSocketsUri.AbsoluteUri}"); |
346 | Log.Information($"Reconnecting to websocket server {_webSocketsUri.AbsoluteUri}"); |
|
345 | |
347 | |
|
346 | Connect(); |
348 | Connect(); |
|
347 | } |
349 | } |
|
348 | |
350 | |
|
349 | private async void WebSocketSharp_OnMessage(object sender, MessageEventArgs e) |
351 | private async void WebSocketSharp_OnMessage(object sender, MessageEventArgs e) |
|
350 | { |
352 | { |
|
351 | if (e.IsPing) |
353 | if (e.IsPing) |
|
352 | { |
354 | { |
|
353 | Log.Information($"Server {_server} sent PING message"); |
355 | Log.Information($"Server {_server} sent PING message"); |
|
354 | |
356 | |
|
355 | _webSocketsServerResponseScheduledContinuation.Schedule(TimeSpan.FromMinutes(1), OnUnresponsiveServer, _cancellationToken); |
357 | _webSocketsServerResponseScheduledContinuation.Schedule(TimeSpan.FromMinutes(1), OnUnresponsiveServer, _cancellationToken); |
|
356 | |
358 | |
|
357 | return; |
359 | return; |
|
358 | } |
360 | } |
|
359 | |
361 | |
|
360 | await _webSocketMessageBufferBlock.SendAsync(e.RawData, _cancellationToken); |
362 | await _webSocketMessageBufferBlock.SendAsync(e.RawData, _cancellationToken); |
|
361 | } |
363 | } |
|
362 | |
364 | |
|
363 | public void Stop() |
365 | public void Stop() |
|
364 | { |
366 | { |
|
365 | if (_cancellationTokenSource == null) return; |
367 | if (_cancellationTokenSource == null) return; |
|
366 | |
368 | |
|
367 | _cancellationTokenSource.Cancel(); |
369 | _cancellationTokenSource.Cancel(); |
|
368 | } |
370 | } |
|
369 | |
371 | |
|
370 | #endregion |
372 | #endregion |
|
371 | |
373 | |
|
372 | #region Private Methods |
374 | #region Private Methods |
|
373 | |
375 | |
|
374 | private async Task RetrievePastMessages(CancellationToken cancellationToken) |
376 | private async Task RetrievePastMessages(CancellationToken cancellationToken) |
|
375 | { |
377 | { |
|
376 | var messageUriBuilder = new UriBuilder(_httpUri); |
378 | var messageUriBuilder = new UriBuilder(_httpUri); |
|
377 | |
379 | |
|
378 | var gotifyApplicationBufferBlock = new BufferBlock<GotifyApplication>(new DataflowBlockOptions { CancellationToken = cancellationToken }); |
380 | var gotifyApplicationBufferBlock = new BufferBlock<GotifyApplication>(new DataflowBlockOptions { CancellationToken = cancellationToken }); |
|
379 | var gotifyApplicationActionBlock = new ActionBlock<GotifyApplication>(async application => |
381 | var gotifyApplicationActionBlock = new ActionBlock<GotifyApplication>(async application => |
|
380 | { |
382 | { |
|
381 | try |
383 | try |
|
382 | { |
384 | { |
|
383 | messageUriBuilder.Path = Path.Combine(messageUriBuilder.Path, "application", $"{application.Id}", |
385 | messageUriBuilder.Path = Path.Combine(messageUriBuilder.Path, "application", $"{application.Id}", |
|
384 | "message"); |
386 | "message"); |
|
385 | } |
387 | } |
|
386 | catch (ArgumentException exception) |
388 | catch (ArgumentException exception) |
|
387 | { |
389 | { |
|
388 | Log.Error($"No application URL could be built for {_server.Url} due to {exception.Message}"); |
390 | Log.Error($"No application URL could be built for {_server.Url} due to {exception.Message}"); |
|
389 | |
391 | |
|
390 | return; |
392 | return; |
|
391 | } |
393 | } |
|
392 | |
394 | |
|
393 | HttpResponseMessage messagesResponse; |
395 | HttpResponseMessage messagesResponse; |
|
394 | try |
396 | try |
|
395 | { |
397 | { |
|
396 | messagesResponse = await _httpClient.GetAsync(messageUriBuilder.Uri, cancellationToken); |
398 | messagesResponse = await _httpClient.GetAsync(messageUriBuilder.Uri, cancellationToken); |
|
397 | } |
399 | } |
|
398 | catch (Exception exception) |
400 | catch (Exception exception) |
|
399 | { |
401 | { |
|
400 | Log.Error($"Could not get application {application.Id} due to {exception.Message}"); |
402 | Log.Error($"Could not get application {application.Id} due to {exception.Message}"); |
|
401 | |
403 | |
|
402 | return; |
404 | return; |
|
403 | } |
405 | } |
|
404 | |
406 | |
|
405 | |
407 | |
|
406 | var messages = await messagesResponse.Content.ReadAsStringAsync(); |
408 | var messages = await messagesResponse.Content.ReadAsStringAsync(); |
|
407 | |
409 | |
|
408 | GotifyMessageQuery gotifyMessageQuery; |
410 | GotifyMessageQuery gotifyMessageQuery; |
|
409 | try |
411 | try |
|
410 | { |
412 | { |
|
411 | gotifyMessageQuery = |
413 | gotifyMessageQuery = |
|
412 | JsonConvert.DeserializeObject<GotifyMessageQuery>(messages); |
414 | JsonConvert.DeserializeObject<GotifyMessageQuery>(messages); |
|
413 | } |
415 | } |
|
414 | catch (JsonSerializationException exception) |
416 | catch (JsonSerializationException exception) |
|
415 | { |
417 | { |
|
416 | Log.Warning($"Could not deserialize the message response: {exception.Message}"); |
418 | Log.Warning($"Could not deserialize the message response: {exception.Message}"); |
|
417 | |
419 | |
|
418 | return; |
420 | return; |
|
419 | } |
421 | } |
|
420 | |
422 | |
|
421 | foreach (var message in gotifyMessageQuery.Messages.Where(message => message.Date >= DateTime.Now - TimeSpan.FromHours(_configuration.RetrievePastNotificationHours))) |
423 | foreach (var message in gotifyMessageQuery.Messages.Where(message => message.Date >= DateTime.Now - TimeSpan.FromHours(_configuration.RetrievePastNotificationHours))) |
|
422 | { |
424 | { |
|
423 | message.Server = _server; |
425 | message.Server = _server; |
|
424 | |
426 | |
|
425 | var cachedImage = _applicationImageCache.Get($"{message.AppId}"); |
427 | var cachedImage = _applicationImageCache.Get($"{message.AppId}"); |
|
426 | if (cachedImage is Image applicationImage) |
428 | if (cachedImage is Image applicationImage) |
|
427 | { |
429 | { |
|
428 | GotifyNotification?.Invoke(this, |
430 | GotifyNotification?.Invoke(this, |
|
429 | new GotifyNotificationEventArgs(message, applicationImage)); |
431 | new GotifyNotificationEventArgs(message, applicationImage)); |
|
430 | return; |
432 | return; |
|
431 | } |
433 | } |
|
432 | |
434 | |
|
433 | using var imageStream = await RetrieveGotifyApplicationImage(message.AppId, _cancellationToken); |
435 | using var imageStream = await RetrieveGotifyApplicationImage(message.AppId, _cancellationToken); |
|
434 | if (imageStream == null || imageStream.Length == 0) |
436 | if (imageStream == null || imageStream.Length == 0) |
|
435 | { |
437 | { |
|
436 | Log.Warning("Could not find any application image for notification"); |
438 | Log.Warning("Could not find any application image for notification"); |
|
437 | continue; |
439 | continue; |
|
438 | } |
440 | } |
|
439 | |
441 | |
|
440 | var image = Image.FromStream(imageStream); |
442 | var image = Image.FromStream(imageStream); |
|
- | 443 | |
||
- | 444 | var clone = image.Clone(); |
||
441 | |
445 | |
|
442 | _applicationImageCache.Add($"{message.AppId}", image.Clone(), |
446 | _applicationImageCache.Add($"{message.AppId}", clone, |
|
443 | new CacheItemPolicy |
447 | new CacheItemPolicy |
|
444 | { |
448 | { |
|
445 | SlidingExpiration = TimeSpan.FromHours(1) |
449 | SlidingExpiration = TimeSpan.FromHours(1) |
|
446 | }); |
450 | }); |
|
447 | |
451 | |
|
448 | GotifyNotification?.Invoke(this, |
452 | GotifyNotification?.Invoke(this, |
|
449 | new GotifyNotificationEventArgs(message, image)); |
453 | new GotifyNotificationEventArgs(message, image)); |
|
450 | } |
454 | } |
|
451 | |
455 | |
|
452 | }, new ExecutionDataflowBlockOptions { CancellationToken = cancellationToken }); |
456 | }, new ExecutionDataflowBlockOptions { CancellationToken = cancellationToken }); |
|
453 | |
457 | |
|
454 | gotifyApplicationBufferBlock.LinkTo(gotifyApplicationActionBlock, |
458 | gotifyApplicationBufferBlock.LinkTo(gotifyApplicationActionBlock, |
|
455 | new DataflowLinkOptions { PropagateCompletion = true }); |
459 | new DataflowLinkOptions { PropagateCompletion = true }); |
|
456 | |
460 | |
|
457 | await foreach (var application in RetrieveGotifyApplications(cancellationToken)) |
461 | await foreach (var application in RetrieveGotifyApplications(cancellationToken)) |
|
458 | { |
462 | { |
|
459 | await gotifyApplicationBufferBlock.SendAsync(application, cancellationToken); |
463 | await gotifyApplicationBufferBlock.SendAsync(application, cancellationToken); |
|
460 | } |
464 | } |
|
461 | |
465 | |
|
462 | gotifyApplicationBufferBlock.Complete(); |
466 | gotifyApplicationBufferBlock.Complete(); |
|
463 | await gotifyApplicationActionBlock.Completion; |
467 | await gotifyApplicationActionBlock.Completion; |
|
464 | |
468 | |
|
465 | } |
469 | } |
|
466 | |
470 | |
|
467 | private async Task HeartBeat(CancellationToken cancellationToken) |
471 | private async Task HeartBeat(CancellationToken cancellationToken) |
|
468 | { |
472 | { |
|
469 | try |
473 | try |
|
470 | { |
474 | { |
|
471 | do |
475 | do |
|
472 | { |
476 | { |
|
473 | await Task.Delay(TimeSpan.FromMinutes(1), cancellationToken); |
477 | await Task.Delay(TimeSpan.FromMinutes(1), cancellationToken); |
|
474 | |
478 | |
|
475 | _webSocketsClientPingStopWatch.Restart(); |
479 | _webSocketsClientPingStopWatch.Restart(); |
|
476 | if (!_webSocketSharp.Ping()) |
480 | if (!_webSocketSharp.Ping()) |
|
477 | { |
481 | { |
|
478 | Log.Warning($"Server {_server} did not respond to PING message."); |
482 | Log.Warning($"Server {_server} did not respond to PING message."); |
|
479 | continue; |
483 | continue; |
|
480 | } |
484 | } |
|
481 | |
485 | |
|
482 | var delta = _webSocketsClientPingStopWatch.ElapsedMilliseconds; |
486 | var delta = _webSocketsClientPingStopWatch.ElapsedMilliseconds; |
|
483 | |
487 | |
|
484 | Log.Information($"PING response latency for {_server} is {delta}ms"); |
488 | Log.Information($"PING response latency for {_server} is {delta}ms"); |
|
485 | |
489 | |
|
486 | _webSocketsServerResponseScheduledContinuation.Schedule(TimeSpan.FromMinutes(1), OnUnresponsiveServer, _cancellationToken); |
490 | _webSocketsServerResponseScheduledContinuation.Schedule(TimeSpan.FromMinutes(1), OnUnresponsiveServer, _cancellationToken); |
|
487 | } while (!cancellationToken.IsCancellationRequested); |
491 | } while (!cancellationToken.IsCancellationRequested); |
|
488 | } |
492 | } |
|
489 | catch (Exception exception) when (exception is OperationCanceledException || |
493 | catch (Exception exception) when (exception is OperationCanceledException || |
|
490 | exception is ObjectDisposedException) |
494 | exception is ObjectDisposedException) |
|
491 | { |
495 | { |
|
492 | } |
496 | } |
|
493 | catch (Exception exception) |
497 | catch (Exception exception) |
|
494 | { |
498 | { |
|
495 | Log.Warning(exception, $"Heartbeat for server {_server} has failed due to {exception.Message}"); |
499 | Log.Warning(exception, $"Heartbeat for server {_server} has failed due to {exception.Message}"); |
|
496 | } |
500 | } |
|
497 | } |
501 | } |
|
498 | |
502 | |
|
499 | private async IAsyncEnumerable<GotifyApplication> RetrieveGotifyApplications([EnumeratorCancellation] CancellationToken cancellationToken) |
503 | private async IAsyncEnumerable<GotifyApplication> RetrieveGotifyApplications([EnumeratorCancellation] CancellationToken cancellationToken) |
|
500 | { |
504 | { |
|
501 | var applicationsUriBuilder = new UriBuilder(_httpUri); |
505 | var applicationsUriBuilder = new UriBuilder(_httpUri); |
|
502 | try |
506 | try |
|
503 | { |
507 | { |
|
504 | applicationsUriBuilder.Path = Path.Combine(applicationsUriBuilder.Path, "application"); |
508 | applicationsUriBuilder.Path = Path.Combine(applicationsUriBuilder.Path, "application"); |
|
505 | } |
509 | } |
|
506 | catch (ArgumentException exception) |
510 | catch (ArgumentException exception) |
|
507 | { |
511 | { |
|
508 | Log.Error($"No application URL could be built for {_server.Url} due to {exception}"); |
512 | Log.Error($"No application URL could be built for {_server.Url} due to {exception}"); |
|
509 | |
513 | |
|
510 | yield break; |
514 | yield break; |
|
511 | } |
515 | } |
|
512 | |
516 | |
|
513 | HttpResponseMessage applicationsResponse; |
517 | HttpResponseMessage applicationsResponse; |
|
514 | |
518 | |
|
515 | try |
519 | try |
|
516 | { |
520 | { |
|
517 | applicationsResponse = await _httpClient.GetAsync(applicationsUriBuilder.Uri, cancellationToken); |
521 | applicationsResponse = await _httpClient.GetAsync(applicationsUriBuilder.Uri, cancellationToken); |
|
518 | } |
522 | } |
|
519 | catch (Exception exception) |
523 | catch (Exception exception) |
|
520 | { |
524 | { |
|
521 | Log.Error($"Could not retrieve applications: {exception.Message}"); |
525 | Log.Error($"Could not retrieve applications: {exception.Message}"); |
|
522 | |
526 | |
|
523 | yield break; |
527 | yield break; |
|
524 | } |
528 | } |
|
525 | |
529 | |
|
526 | var applications = await applicationsResponse.Content.ReadAsStringAsync(); |
530 | var applications = await applicationsResponse.Content.ReadAsStringAsync(); |
|
527 | |
531 | |
|
528 | GotifyApplication[] gotifyApplications; |
532 | GotifyApplication[] gotifyApplications; |
|
529 | try |
533 | try |
|
530 | { |
534 | { |
|
531 | gotifyApplications = |
535 | gotifyApplications = |
|
532 | JsonConvert.DeserializeObject<GotifyApplication[]>(applications); |
536 | JsonConvert.DeserializeObject<GotifyApplication[]>(applications); |
|
533 | } |
537 | } |
|
534 | catch (JsonSerializationException exception) |
538 | catch (JsonSerializationException exception) |
|
535 | { |
539 | { |
|
536 | Log.Warning($"Could not deserialize the list of applications from the server: {exception}"); |
540 | Log.Warning($"Could not deserialize the list of applications from the server: {exception}"); |
|
537 | |
541 | |
|
538 | yield break; |
542 | yield break; |
|
539 | } |
543 | } |
|
540 | |
544 | |
|
541 | foreach (var application in gotifyApplications) |
545 | foreach (var application in gotifyApplications) |
|
542 | { |
546 | { |
|
543 | yield return application; |
547 | yield return application; |
|
544 | } |
548 | } |
|
545 | } |
549 | } |
|
546 | |
550 | |
|
547 | private async Task<Stream> RetrieveGotifyApplicationImage(int appId, CancellationToken cancellationToken) |
551 | private async Task<Stream> RetrieveGotifyApplicationImage(int appId, CancellationToken cancellationToken) |
|
548 | { |
552 | { |
|
549 | await foreach (var application in RetrieveGotifyApplications(cancellationToken)) |
553 | await foreach (var application in RetrieveGotifyApplications(cancellationToken)) |
|
550 | { |
554 | { |
|
551 | if (application.Id != appId) continue; |
555 | if (application.Id != appId) continue; |
|
552 | |
556 | |
|
553 | if (!Uri.TryCreate(Path.Combine($"{_httpUri}", $"{application.Image}"), UriKind.Absolute, out var applicationImageUri)) |
557 | if (!Uri.TryCreate(Path.Combine($"{_httpUri}", $"{application.Image}"), UriKind.Absolute, out var applicationImageUri)) |
|
554 | { |
558 | { |
|
555 | Log.Warning("Could not build URL path to application icon"); |
559 | Log.Warning("Could not build URL path to application icon"); |
|
556 | continue; |
560 | continue; |
|
557 | } |
561 | } |
|
558 | |
562 | |
|
559 | HttpResponseMessage imageResponse; |
563 | HttpResponseMessage imageResponse; |
|
560 | |
564 | |
|
561 | try |
565 | try |
|
562 | { |
566 | { |
|
563 | imageResponse = await _httpClient.GetAsync(applicationImageUri, cancellationToken); |
567 | imageResponse = await _httpClient.GetAsync(applicationImageUri, cancellationToken); |
|
564 | } |
568 | } |
|
565 | catch (Exception exception) |
569 | catch (Exception exception) |
|
566 | { |
570 | { |
|
567 | Log.Error($"Could not retrieve application image: {exception.Message}"); |
571 | Log.Error($"Could not retrieve application image: {exception.Message}"); |
|
568 | |
572 | |
|
569 | return new MemoryStream(); |
573 | return new MemoryStream(); |
|
570 | } |
574 | } |
|
571 | |
575 | |
|
572 | var memoryStream = new MemoryStream(); |
576 | var memoryStream = new MemoryStream(); |
|
573 | |
577 | |
|
574 | await imageResponse.Content.CopyToAsync(memoryStream); |
578 | await imageResponse.Content.CopyToAsync(memoryStream); |
|
575 | |
579 | |
|
576 | memoryStream.Position = 0L; |
580 | memoryStream.Position = 0L; |
|
577 | |
581 | |
|
578 | return memoryStream; |
582 | return memoryStream; |
|
579 | } |
583 | } |
|
580 | |
584 | |
|
581 | return new MemoryStream(); |
585 | return new MemoryStream(); |
|
582 | } |
586 | } |
|
583 | |
587 | |
|
584 | #endregion |
588 | #endregion |
|
585 | } |
589 | } |
|
586 | } |
590 | } |
|
587 | |
591 | |
|
588 |
|
592 |
|
|
589 | |
593 | |
|
590 | |
594 | |
|
591 | |
595 | |