public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log, Microsoft.Azure.WebJobs.ExecutionContext context)
{
// Log the start
log.LogInformation($"C# Timer trigger function executed at: {DateTime.Now}");
// Initialize the configuration object
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
// Get the storage account information
string storageAccountName = config["StorageAccountName"];
string storageAccountKey = config["StorageAccountKey"];
// Get the parallelization configuration
int maxThreads = 0;
try
{
int.TryParse(config["Threads"], out maxThreads);
}
catch (Exception e)
{
maxThreads = 20;
}
// Get the values from the request
string ip = req.Query["IP"];
// Validate the input
if (ip == null)
{
return((ActionResult) new BadRequestObjectResult("Failed to get host. IP cannot be null."));
}
// Create the resources
Azure az = new Azure(storageAccountName, storageAccountKey);
// Check if the host exists
if (!az.ExistsHost(ip))
{
return((ActionResult) new BadRequestObjectResult("The supplied host does not exist."));
}
// Read the RBLs from the configuration
List <RBL> MyRBLs = az.GetRBLs().Where(x => x.Type.ToUpper().Equals("IP")).ToList();
// Process each host
log.LogInformation($"Processing host: {ip}");
// The results
List <RBLHostResult> results = new List <RBLHostResult>();
// Create the tasks
List <Task <RBLHostResult> > tasks = new List <Task <RBLHostResult> >();
foreach (RBL r in MyRBLs)
{
tasks.Add(new Task <RBLHostResult>(() => r.QueryHost(ip)));
}
// Start the first batch of tasks
for (int i = 0; i < maxThreads && i < tasks.Count; i++)
{
tasks[i].Start();
}
// While there are tasks that are not completed,
while (tasks.Count > 0)
{
// Wait for a task to complete
var t = await Task.WhenAny(tasks);
tasks.Remove(t);
// Process the result
try
{
results.Add(t.Result);
}
catch (OperationCanceledException) { }
catch (Exception exc) { }
// Start the next task
if (tasks.Count > 0)
{
foreach (Task <RBLHostResult> nextTask in tasks)
{
if (nextTask.Status == TaskStatus.Created)
{
nextTask.Start();
break;
}
}
}
}
// Wait for all tasks (in case we missed one).
Task.WaitAll(tasks.ToArray());
// Log the end
log.LogInformation($"C# Timer trigger function completed at: {DateTime.Now}");
// Return the result
var jsonToReturn = JsonConvert.SerializeObject(results);
return((ActionResult) new OkObjectResult(jsonToReturn));
}
public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log, ExecutionContext context)
{
// Log the start
log.LogInformation($"C# Timer trigger function executed at: {DateTime.Now}");
// Initialize the configuration object
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
// Get the storage account information
string storageAccountName = config["StorageAccountName"];
string storageAccountKey = config["StorageAccountKey"];
// Check the supplied values
if (storageAccountKey == null)
{
return((ActionResult) new BadRequestObjectResult("Failed to read the storage account key from the configuration."));
}
if (storageAccountName == null)
{
return((ActionResult) new BadRequestObjectResult("Failed to read the storage account name from the configuration."));
}
// Create the resources
Azure az;
try
{
az = new Azure(storageAccountName, storageAccountKey);
}
catch (Exception e)
{
return((ActionResult) new BadRequestObjectResult("Failed to initialize the Azure interface. " + e.Message));
}
// Get the values from the request
string fqdn = req.Query["FQDN"];
// Validate the input
if (fqdn == null)
{
return((ActionResult) new BadRequestObjectResult("The RBL FQDN cannot be null."));
}
// Remove the host
try
{
az.RemoveRBL(fqdn);
}
catch (Exception e)
{
return((ActionResult) new BadRequestObjectResult("Failed remove the RBL. " + e.Message));
}
// Return the result
return((ActionResult) new OkObjectResult($"The RBL {fqdn} has been removed"));
}
public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log, ExecutionContext context)
{
// Log the start
log.LogInformation($"C# Timer trigger function executed at: {DateTime.Now}");
// Initialize the configuration object
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
// Get the storage account information
string storageAccountName = config["StorageAccountName"];
string storageAccountKey = config["StorageAccountKey"];
// Check the supplied values
if (storageAccountKey == null)
{
return((ActionResult) new BadRequestObjectResult("Failed to read the storage account key from the configuration."));
}
if (storageAccountName == null)
{
return((ActionResult) new BadRequestObjectResult("Failed to read the storage account name from the configuration."));
}
// Create the resources
Azure az;
try
{
az = new Azure(storageAccountName, storageAccountKey);
}
catch (Exception e)
{
return((ActionResult) new BadRequestObjectResult("Failed to initialize the Azure interface. " + e.Message));
}
// Get the values from the request
string hostname = req.Query["Hostname"];
string ip = req.Query["IP"];
// Validate the input
if (hostname == null)
{
return((ActionResult) new BadRequestObjectResult("Failed to add the host. The supplied hostname is not valid."));
}
if (ip == null)
{
return((ActionResult) new BadRequestObjectResult("Failed to add the host. The supplied IP is not valid."));
}
Regex ipRegex = new Regex(@"\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b");
if (!ipRegex.IsMatch(ip))
{
return((ActionResult) new BadRequestObjectResult("Failed to add the host. The supplied IP is not valid."));
}
// Add the host
try
{
az.AddHost(hostname, ip);
}
catch (Exception e)
{
return((ActionResult) new BadRequestObjectResult("Failed to add the host. " + e.Message));
}
// Return a success result
return(new OkObjectResult($"The host {hostname} - {ip} has been added."));
}