private static bool MatchesBeatPulseRequestPath(this HttpContext context, BeatPulseOptions options) { var routeValues = new RouteValueDictionary(); var templateMatcher = GetTemplateMatcher(options); return(templateMatcher.TryMatch(context.Request.Path, routeValues)); }
public static Task WriteLivenessMessage(this HttpResponse response, BeatPulseOptions options, OutputLivenessMessage message) { var defaultContentType = options.DetailedOutput ? "application/json" : "text/plain"; const string noCacheOptions = "no-cache, no-store, must-revalidate"; const string noCachePragma = "no-cache"; const string defaultExpires = "0"; response.Headers["Content-Type"] = new[] { defaultContentType }; if (options.CacheOutput) { if (options.CacheMode == CacheMode.Header || options.CacheMode == CacheMode.HeaderAndServerMemory) { response.Headers["Cache-Control"] = new[] { $"public, max-age={options.CacheDuration}" }; } } else { response.Headers["Cache-Control"] = new[] { noCacheOptions }; response.Headers["Pragma"] = new[] { noCachePragma }; response.Headers["Expires"] = new[] { defaultExpires }; } response.StatusCode = message.Code; var content = options.DetailedOutput ? JsonConvert.SerializeObject(message) : Enum.GetName(typeof(HttpStatusCode), message.Code); return(response.WriteAsync(content)); }
public BeatPulseMiddleware(RequestDelegate next, IEnumerable <IBeatPulseAuthenticationFilter> authenticationFilters, BeatPulseOptions options) { _next = next ?? throw new ArgumentNullException(nameof(next)); _options = options; _authenticationFilters = authenticationFilters; _cache = new ConcurrentDictionary <string, OutputLivenessMessage>(); }
public static string GetBeatPulseRequestPath(this HttpContext context, BeatPulseOptions options) { var routeValues = new RouteValueDictionary(); var templateMatcher = GetTemplateMatcher(options); templateMatcher.TryMatch(context.Request.Path, routeValues); return(routeValues[BeatPulseKeys.BEATPULSE_PATH_SEGMENT_NAME].ToString()); }
private static TemplateMatcher GetTemplateMatcher(BeatPulseOptions options) { var templateMatcher = new TemplateMatcher(TemplateParser.Parse($"{options.BeatPulsePath}/{{{BeatPulseKeys.BEATPULSE_PATH_SEGMENT_NAME}}}"), new RouteValueDictionary() { { BeatPulseKeys.BEATPULSE_PATH_SEGMENT_NAME, string.Empty } }); return(templateMatcher); }
public BeatPulseMiddleware(RequestDelegate next, BeatPulseOptions options) { _next = next ?? throw new ArgumentNullException(nameof(next)); _options = options; _cache = new ConcurrentDictionary <string, OutputMessage>(); _templateMatcher = new TemplateMatcher(TemplateParser.Parse($"{options.BeatPulsePath}/{{{BeatPulseKeys.BEATPULSE_PATH_SEGMENT_NAME}}}"), new RouteValueDictionary() { { BeatPulseKeys.BEATPULSE_PATH_SEGMENT_NAME, string.Empty } }); //match template for uri like /hc/{segment} }
bool TryFromCache(string path, BeatPulseOptions options, out OutputLivenessMessage message) { message = null; if (options.CacheOutput && options.CacheMode.UseServerMemory() && _cache.TryGetValue(path, out message)) { var seconds = (DateTime.UtcNow - message.EndAtUtc).TotalSeconds; if (options.CacheDuration > seconds) { return(true); } else { _cache.TryRemove(path, out OutputLivenessMessage removed); return(false); } } return(false); }
public static bool IsBeatPulseRequest(this HttpContext context, BeatPulseOptions options) { return(context.Request.Method == HttpMethods.Get && context.MatchesBeatPulseRequestPath(options)); }
public BeatPulseFilter(BeatPulseOptions options) { _options = options; }