public RuleWrapper(AggregatorConfiguration configuration, ILogger logger, string ruleName, string functionDirectory)
{
this.configuration = configuration;
this.logger = logger;
this.ruleName = ruleName;
this.functionDirectory = functionDirectory;
}
static public AggregatorConfiguration Read(Microsoft.Extensions.Configuration.IConfiguration config)
{
var ac = new AggregatorConfiguration();
Enum.TryParse(config["Aggregator_VstsTokenType"], out VstsTokenType vtt);
ac.VstsTokenType = vtt;
ac.VstsToken = config["Aggregator_VstsToken"];
return(ac);
}
static public AggregatorConfiguration Read(Microsoft.Extensions.Configuration.IConfiguration config)
{
var ac = new AggregatorConfiguration();
Enum.TryParse(config["Aggregator_VstsTokenType"], out DevOpsTokenType vtt);
ac.DevOpsTokenType = vtt;
ac.DevOpsToken = config["Aggregator_VstsToken"];
ac.SaveMode = Enum.TryParse(config["Aggregator_SaveMode"], out SaveMode sm)
? sm
: SaveMode.Default;
return(ac);
}
public async Task <HttpResponseMessage> Run(HttpRequestMessage req)
{
log.Verbose($"Context: {context.InvocationId} {context.FunctionName} {context.FunctionDirectory} {context.FunctionAppDirectory}");
// TODO
string aggregatorVersion = null;
try
{
string rule = context.FunctionName;
log.Info($"Welcome to {rule}");
}
catch (Exception ex)
{
log.Warning($"Failed parsing headers: {ex.Message}");
}
// Get request body
string jsonContent = await req.Content.ReadAsStringAsync();
dynamic data = JsonConvert.DeserializeObject(jsonContent);
string eventType = data.eventType;
// sanity check
if (!VstsEvents.IsValidEvent(eventType) ||
data.publisherId != VstsEvents.PublisherId)
{
return(req.CreateResponse(HttpStatusCode.BadRequest, new
{
error = "Not a good VSTS post..."
}));
}
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
var configuration = AggregatorConfiguration.Read(config);
var logger = new TraceWriterLogger(log);
var wrapper = new RuleWrapper(configuration, logger, context.FunctionName, context.FunctionDirectory);
string execResult = await wrapper.Execute(aggregatorVersion, data);
log.Info($"Returning {execResult}");
var resp = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent(execResult)
};
return(resp);
}
public static AggregatorConfiguration ExtendFromUrl(AggregatorConfiguration configuration, Uri requestUri)
{
var parameters = System.Web.HttpUtility.ParseQueryString(requestUri.Query);
bool dryRun = bool.TryParse(parameters["dryRun"], out dryRun) && dryRun;
configuration.DryRun = dryRun;
if (Enum.TryParse(parameters["saveMode"], out SaveMode saveMode))
{
configuration.SaveMode = saveMode;
}
return(configuration);
}
public async Task <HttpResponseMessage> RunAsync(HttpRequestMessage req, CancellationToken cancellationToken)
{
_log.LogDebug($"Context: {_context.InvocationId} {_context.FunctionName} {_context.FunctionDirectory} {_context.FunctionAppDirectory}");
var aggregatorVersion = GetCustomAttribute <System.Reflection.AssemblyInformationalVersionAttribute>()?.InformationalVersion;
try
{
var rule = _context.FunctionName;
_log.LogInformation($"Aggregator v{aggregatorVersion} executing rule '{rule}'");
}
catch (Exception ex)
{
_log.LogWarning($"Failed parsing request headers: {ex.Message}");
}
cancellationToken.ThrowIfCancellationRequested();
// Get request body
var jsonContent = await req.Content.ReadAsStringAsync();
if (string.IsNullOrWhiteSpace(jsonContent))
{
_log.LogWarning($"Failed parsing request body: empty");
var resp = new HttpResponseMessage(HttpStatusCode.BadRequest)
{
Content = new StringContent("Request body is empty")
};
return(resp);
}
dynamic data = JsonConvert.DeserializeObject(jsonContent);
string eventType = data.eventType;
// sanity check
if (!DevOpsEvents.IsValidEvent(eventType) ||
data.publisherId != DevOpsEvents.PublisherId)
{
return(req.CreateResponse(HttpStatusCode.BadRequest, new
{
error = "Not a good Azure DevOps post..."
}));
}
if (data.resource.url == "http://fabrikam-fiber-inc.visualstudio.com/DefaultCollection/_apis/wit/workItems/5")
{
var resp = req.CreateResponse(HttpStatusCode.OK, new
{
message = $"Hello from Aggregator v{aggregatorVersion} executing rule '{_context.FunctionName}'"
});
resp.Headers.Add("X-Aggregator-Version", aggregatorVersion);
resp.Headers.Add("X-Aggregator-Rule", _context.FunctionName);
return(resp);
}
var config = new ConfigurationBuilder()
.SetBasePath(_context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
var configuration = AggregatorConfiguration.Read(config);
configuration = InvokeOptions.ExtendFromUrl(configuration, req.RequestUri);
var logger = new ForwarderLogger(_log);
var wrapper = new RuleWrapper(configuration, logger, _context.FunctionName, _context.FunctionDirectory);
try
{
string execResult = await wrapper.ExecuteAsync(data, cancellationToken);
if (string.IsNullOrEmpty(execResult))
{
var resp = new HttpResponseMessage(HttpStatusCode.OK);
return(resp);
}
else
{
_log.LogInformation($"Returning '{execResult}' from '{_context.FunctionName}'");
var resp = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent(execResult)
};
return(resp);
}
}
catch (Exception ex)
{
_log.LogWarning($"Rule '{_context.FunctionName}' failed: {ex.Message}");
var resp = new HttpResponseMessage(HttpStatusCode.NotImplemented)
{
Content = new StringContent(ex.Message)
};
return(resp);
}
}
public async Task <HttpResponseMessage> RunAsync(HttpRequestMessage req, CancellationToken cancellationToken)
{
_log.LogDebug($"Context: {_context.InvocationId} {_context.FunctionName} {_context.FunctionDirectory} {_context.FunctionAppDirectory}");
var ruleName = _context.FunctionName;
var aggregatorVersion = GetCustomAttribute <System.Reflection.AssemblyInformationalVersionAttribute>()?.InformationalVersion;
_log.LogInformation($"Aggregator v{aggregatorVersion} executing rule '{ruleName}'");
cancellationToken.ThrowIfCancellationRequested();
// Get request body
var eventData = await GetWebHookEvent(req);
if (eventData == null)
{
return(req.CreateErrorResponse(HttpStatusCode.BadRequest, "Request body is empty"));
}
// sanity check
if (!DevOpsEvents.IsValidEvent(eventData.EventType) ||
eventData.PublisherId != DevOpsEvents.PublisherId)
{
return(req.CreateErrorResponse(HttpStatusCode.BadRequest, "Not a good Azure DevOps post..."));
}
var eventContext = CreateContextFromEvent(eventData);
if (eventContext.IsTestEvent())
{
return(req.CreateTestEventResponse(aggregatorVersion, ruleName));
}
var configContext = GetConfigurationContext();
var configuration = AggregatorConfiguration.ReadConfiguration(configContext)
.UpdateFromUrl(ruleName, req.RequestUri);
var logger = new ForwarderLogger(_log);
var ruleProvider = new AzureFunctionRuleProvider(logger, _context.FunctionDirectory);
var ruleExecutor = new RuleExecutor(logger, configuration);
using (_log.BeginScope($"WorkItem #{eventContext.WorkItemPayload.WorkItem.Id}"))
{
try
{
var rule = await ruleProvider.GetRule(ruleName);
var execResult = await ruleExecutor.ExecuteAsync(rule, eventContext, cancellationToken);
if (string.IsNullOrEmpty(execResult))
{
return(req.CreateResponse(HttpStatusCode.OK));
}
else
{
_log.LogInformation($"Returning '{execResult}' from '{rule.Name}'");
return(req.CreateResponse(HttpStatusCode.OK, execResult));
}
}
catch (Exception ex)
{
_log.LogWarning($"Rule '{ruleName}' failed: {ex.Message}");
return(req.CreateErrorResponse(HttpStatusCode.NotImplemented, ex));
}
}
}
public async Task <IActionResult> RunAsync(/*HttpRequest request, */ WebHookEvent eventData, CancellationToken cancellationToken)
{
_log.LogDebug($"Context: {_executionContext.InvocationId} {_executionContext.FunctionName} {_executionContext.FunctionDirectory} {_executionContext.FunctionAppDirectory}");
var ruleName = _executionContext.FunctionName;
var aggregatorVersion = RequestHelper.AggregatorVersion;
_log.LogInformation($"Aggregator v{aggregatorVersion} executing rule '{ruleName}'");
cancellationToken.ThrowIfCancellationRequested();
if (eventData == null)
{
return(BadRequest("Request body is empty"));
}
// sanity check
if (!DevOpsEvents.IsValidEvent(eventData.EventType) ||
eventData.PublisherId != DevOpsEvents.PublisherId)
{
_log.LogDebug("return BadRequest");
return(BadRequest(new { Error = "Not a good Azure DevOps post..." }));
}
var helper = new RequestHelper(_log);
var eventContext = helper.CreateContextFromEvent(eventData);
if (eventContext.IsTestEvent())
{
Response.AddCustomHeaders(aggregatorVersion, ruleName);
return(RespondToTestEventMessage(aggregatorVersion, ruleName));
}
var configContext = GetConfigurationContext();
var configuration = AggregatorConfiguration.ReadConfiguration(configContext)
.UpdateFromUrl(ruleName, GetRequestUri());
var logger = new ForwarderLogger(_log);
var ruleProvider = new AzureFunctionRuleProvider(logger, _executionContext.FunctionDirectory);
var ruleExecutor = new RuleExecutor(logger, configuration);
using (_log.BeginScope($"WorkItem #{eventContext.WorkItemPayload.WorkItem.Id}"))
{
try
{
var rule = await ruleProvider.GetRule(ruleName);
var execResult = await ruleExecutor.ExecuteAsync(rule, eventContext, cancellationToken);
if (string.IsNullOrEmpty(execResult))
{
return(Ok());
}
else
{
_log.LogInformation($"Returning '{execResult}' from '{rule.Name}'");
return(Ok(execResult));
}
}
catch (Exception ex)
{
_log.LogWarning($"Rule '{ruleName}' failed: {ex.Message}");
return(BadRequest(ex.Message));
}
}
}
public async Task <HttpResponseMessage> Run(HttpRequestMessage req)
{
log.LogDebug($"Context: {context.InvocationId} {context.FunctionName} {context.FunctionDirectory} {context.FunctionAppDirectory}");
var aggregatorVersion = GetCustomAttribute <System.Reflection.AssemblyInformationalVersionAttribute>()?.InformationalVersion;
try
{
string rule = context.FunctionName;
log.LogInformation($"Aggregator v{aggregatorVersion} executing rule '{rule}'");
}
catch (Exception ex)
{
log.LogWarning($"Failed parsing request headers: {ex.Message}");
}
// Get request body
string jsonContent = await req.Content.ReadAsStringAsync();
if (string.IsNullOrWhiteSpace(jsonContent))
{
log.LogWarning($"Failed parsing request body: empty");
var resp = new HttpResponseMessage(HttpStatusCode.BadRequest)
{
Content = new StringContent("Request body is empty")
};
return(resp);
}
dynamic data = JsonConvert.DeserializeObject(jsonContent);
string eventType = data.eventType;
// sanity check
if (!DevOpsEvents.IsValidEvent(eventType) ||
data.publisherId != DevOpsEvents.PublisherId)
{
return(req.CreateResponse(HttpStatusCode.BadRequest, new
{
error = "Not a good Azure DevOps post..."
}));
}
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
var configuration = AggregatorConfiguration.Read(config);
var logger = new ForwarderLogger(log);
var wrapper = new RuleWrapper(configuration, logger, context.FunctionName, context.FunctionDirectory);
try
{
string execResult = await wrapper.Execute(data);
if (string.IsNullOrEmpty(execResult))
{
var resp = new HttpResponseMessage(HttpStatusCode.OK);
return(resp);
}
else
{
log.LogInformation($"Returning '{execResult}' from '{context.FunctionName}'");
var resp = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent(execResult)
};
return(resp);
}
}
catch (Exception ex)
{
log.LogWarning($"Rule '{context.FunctionName}' failed: {ex.Message}");
var resp = new HttpResponseMessage(HttpStatusCode.NotImplemented)
{
Content = new StringContent(ex.Message)
};
return(resp);
}
}