public async Task Traffic([QueueTrigger("traffic")] string queueItem, ExecutionContext executionContext, ILogger logger)
{
DateTime functionStartDate = DateTime.UtcNow;
string sessionId = Guid.NewGuid().ToString();
JsonSerializerSettings serializerSettings = new JsonSerializerSettings()
{
TypeNameHandling = TypeNameHandling.None
};
Repository repositoryDetails = JsonConvert.DeserializeObject <Repository>(queueItem, serializerSettings);
FunctionContextWriter <FunctionContext> contextWriter = new FunctionContextWriter <FunctionContext>();
string identifier = $"Traffic";
FunctionContext context = new FunctionContext()
{
CollectorType = CollectorType.Traffic.ToString(),
FunctionStartDate = functionStartDate,
SessionId = sessionId,
InvocationId = executionContext.InvocationId.ToString(),
};
StatsTracker statsTracker = null;
string outputPaths = string.Empty;
bool success = false;
ITelemetryClient telemetryClient = new GitHubApplicationInsightsTelemetryClient(this.telemetryClient, context, logger);
try
{
telemetryClient.TrackEvent("SessionStart", GetRepositoryCollectorSessionStartEventProperties(context, identifier, repositoryDetails));
ICache <RateLimitTableEntity> rateLimiterCache = new AzureTableCache <RateLimitTableEntity>(telemetryClient, "ratelimiter");
await rateLimiterCache.InitializeAsync().ConfigureAwait(false);
IRateLimiter rateLimiter = new GitHubRateLimiter(this.configManager.UsesGitHubAuth(context.CollectorType) ? repositoryDetails.OrganizationLogin : "******", rateLimiterCache, this.httpClient, telemetryClient, maxUsageBeforeDelayStarts: 50.0, this.apiDomain);
ICache <ConditionalRequestTableEntity> requestsCache = new AzureTableCache <ConditionalRequestTableEntity>(telemetryClient, "requests");
await requestsCache.InitializeAsync().ConfigureAwait(false);
GitHubHttpClient httpClient = new GitHubHttpClient(this.httpClient, rateLimiter, requestsCache, telemetryClient);
IAuthentication authentication = this.configManager.GetAuthentication(CollectorType.Traffic, httpClient, repositoryDetails.OrganizationLogin, this.apiDomain);
StorageManager storageManager;
List <IRecordWriter> recordWriters;
using (storageManager = this.configManager.GetStorageManager(context.CollectorType, telemetryClient))
{
recordWriters = storageManager.InitializeRecordWriters(identifier, context, contextWriter, this.adlsClient.AdlsClient);
IRecordStatsTracker recordStatsTracker = null;
foreach (IRecordWriter recordWriter in recordWriters)
{
recordWriter.SetOutputPathPrefix($"{repositoryDetails.OrganizationId}/{repositoryDetails.RepositoryId}");
if (recordStatsTracker == null)
{
recordStatsTracker = recordWriter;
}
}
statsTracker = new StatsTracker(telemetryClient, httpClient, recordStatsTracker, StatsTrackerRefreshFrequency);
TrafficProcessor processor = new TrafficProcessor(authentication, recordWriters, httpClient, telemetryClient, this.apiDomain);
await processor.ProcessAsync(repositoryDetails).ConfigureAwait(false);
}
await storageManager.FinalizeRecordWritersAsync().ConfigureAwait(false);
outputPaths = RecordWriterExtensions.GetOutputPaths(recordWriters);
success = true;
}
catch (Exception exception) when(!(exception is FatalException))
{
telemetryClient.TrackException(exception, "Traffic failed.");
throw exception;
}
finally
{
SendSessionEndEvent(telemetryClient, context.FunctionStartDate, outputPaths, GetRepositoryCollectorSessionStartEventProperties(context, identifier, repositoryDetails), success);
statsTracker?.Stop();
}
}
public async Task ProcessWebHookActivity([ActivityTrigger] IDurableActivityContext durableContext)
{
OrchestrationContext context = durableContext.GetInput <OrchestrationContext>();
string requestBody = context.RequestBody;
WebhookProcessorContext functionContext = context.Downgrade();
WebhookProcessorContextWriter contextWriter = new WebhookProcessorContextWriter();
JObject record = JObject.Parse(requestBody);
string organizationName;
Dictionary <string, string> additionalTelemetryProperties = new Dictionary <string, string>();
foreach (KeyValuePair <string, string> property in GetMainCollectorSessionStartEventProperties(functionContext, identifier: functionContext.EventType, functionContext.LogicAppRunId))
{
additionalTelemetryProperties.Add(property.Key, property.Value);
}
string outputPaths = string.Empty;
bool success = false;
ITelemetryClient telemetryClient = new GitHubApplicationInsightsTelemetryClient(this.telemetryClient, functionContext);
try
{
// Not all payloads have a "repository" attribute e.g., membership, organization, project, project_card, etc. paylods. Look under $organization attribute first, if available.
JToken organizationNameToken = record.SelectToken("$.organization.login");
if (organizationNameToken == null)
{
organizationNameToken = record.SelectToken("$.repository.owner.login");
}
if (organizationNameToken == null)
{
// NOTE: BELOW RELEVANT IF WE ARE RELYING ON APP WEBHOOKS
// In theory, all event payloads will have repository.owner.login (see https://developer.github.com/webhooks/event-payloads/#webhook-payload-object-common-properties)
// However, there are certain app-specific webhooks (e.g. new_permissions_accepted, which is not documented/can't be found by a search engine) that lack this.
// note: other example app-specific webhooks - app installed into repo, app uninstalled from repo, etc.
throw new FatalTerminalException("Could not find organization name in webhook payload.");
}
organizationName = organizationNameToken.Value <string>();
IEventsBookkeeper eventsBookkeeper = new EventsBookkeeper(telemetryClient);
await eventsBookkeeper.InitializeAsync().ConfigureAwait(false);
ICache <RecordTableEntity> recordsCache = new AzureTableCache <RecordTableEntity>(telemetryClient, "records");
await recordsCache.InitializeAsync().ConfigureAwait(false);
ICache <RepositoryItemTableEntity> collectorCache = new AzureTableCache <RepositoryItemTableEntity>(telemetryClient, "github");
await collectorCache.InitializeAsync().ConfigureAwait(false);
ICache <RateLimitTableEntity> rateLimiterCache = new AzureTableCache <RateLimitTableEntity>(telemetryClient, "ratelimiter");
await rateLimiterCache.InitializeAsync().ConfigureAwait(false);
ICache <ConditionalRequestTableEntity> requestsCache = new AzureTableCache <ConditionalRequestTableEntity>(telemetryClient, "requests");
await requestsCache.InitializeAsync().ConfigureAwait(false);
IRateLimiter rateLimiter = new GitHubRateLimiter(this.configManager.UsesGitHubAuth(context.CollectorType) ? organizationName : "*", rateLimiterCache, this.httpClient, telemetryClient, maxUsageBeforeDelayStarts: 90.0, this.apiDomain);
GitHubHttpClient httpClient = new GitHubHttpClient(this.httpClient, rateLimiter, requestsCache, telemetryClient);
IAuthentication authentication = this.configManager.GetAuthentication(CollectorType.Main, httpClient, organizationName, this.apiDomain);
StorageManager storageManager;
List <IRecordWriter> recordWriters;
using (storageManager = this.configManager.GetStorageManager(context.CollectorType, telemetryClient))
{
recordWriters = storageManager.InitializeRecordWriters(identifier: functionContext.EventType, functionContext, contextWriter, this.adlsClient.AdlsClient);
WebHookProcessor processor = new WebHookProcessor(requestBody, functionContext, authentication, httpClient, recordWriters, eventsBookkeeper, recordsCache, collectorCache, telemetryClient, this.apiDomain);
additionalTelemetryProperties = await processor.ProcessAsync().ConfigureAwait(false);
foreach (KeyValuePair <string, string> property in GetMainCollectorSessionStartEventProperties(functionContext, identifier: functionContext.EventType, functionContext.LogicAppRunId))
{
additionalTelemetryProperties.Add(property.Key, property.Value);
}
}
await storageManager.FinalizeRecordWritersAsync().ConfigureAwait(false);
outputPaths = RecordWriterExtensions.GetOutputPaths(recordWriters);
success = true;
}
catch (Exception exception) when(!(exception is FatalException))
{
telemetryClient.TrackException(exception, "ProcessWebHookActivity failed.");
throw exception;
}
finally
{
SendSessionEndEvent(telemetryClient, functionContext.FunctionStartDate, outputPaths, additionalTelemetryProperties, success);
}
}