public static async Task <HttpResponseMessage> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = "UrlRedirect/{shortUrl}")] HttpRequestMessage req,
string shortUrl,
ExecutionContext context,
ILogger log)
{
log.LogInformation($"C# HTTP trigger function processed for Url: {shortUrl}");
string redirectUrl = "https://costv.guide";
if (!string.IsNullOrWhiteSpace(shortUrl))
{
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
redirectUrl = config["defaultRedirectUrl"];
StorageTableHelper stgHelper = new StorageTableHelper(config["UlsDataStorage"]);
var tempUrl = new ShortUrlEntity(string.Empty, shortUrl);
var newUrl = await stgHelper.GetShortUrlEntity(tempUrl);
if (newUrl != null)
{
log.LogInformation($"Found it: {newUrl.Url}");
newUrl.Clicks++;
stgHelper.SaveClickStatsEntity(new ClickStatsEntity(newUrl.RowKey));
await stgHelper.SaveShortUrlEntity(newUrl);
redirectUrl = WebUtility.UrlDecode(newUrl.Url);
}
}
else
{
log.LogInformation("Bad Link, resorting to fallback.");
}
var currentQuery = HttpUtility.ParseQueryString(req.RequestUri.Query);
var redirectUriBuilder = new UriBuilder(redirectUrl);
var redirectQuery = HttpUtility.ParseQueryString(redirectUriBuilder.Query);
foreach (var key in currentQuery.AllKeys)
{
redirectQuery[key] = currentQuery[key];
redirectUriBuilder.Query = redirectQuery.ToString();
}
var response = req.CreateResponse(HttpStatusCode.Redirect);
response.Headers.Add("Location", redirectUriBuilder.ToString());
return(response);
}
public static async Task <HttpResponseMessage> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = "UrlRedirect/{shortUrl}")] HttpRequestMessage req,
string shortUrl,
ExecutionContext context,
ILogger log)
{
log.LogInformation($"C# HTTP trigger function processed for Url: {shortUrl}");
string redirectUrl = "https://azure.com";
if (!String.IsNullOrWhiteSpace(shortUrl))
{
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
redirectUrl = config["defaultRedirectUrl"];
StorageTableHelper stgHelper = new StorageTableHelper(config["UlsDataStorage"]);
var tempUrl = new ShortUrlEntity(string.Empty, shortUrl);
var newUrl = await stgHelper.GetShortUrlEntity(tempUrl);
if (newUrl != null)
{
log.LogInformation($"Found it: {newUrl.Url}");
newUrl.Clicks++;
var host = req.RequestUri.GetLeftPart(UriPartial.Authority);
var shortUrlAddress = Utility.GetShortUrl(host, shortUrl);
await RunWebhooks(stgHelper, new ClickStatsResponse(newUrl.Title, shortUrlAddress, newUrl.Url, newUrl.Clicks));
stgHelper.SaveClickStatsEntity(new ClickStatsEntity(newUrl.RowKey));
await stgHelper.SaveShortUrlEntity(newUrl);
redirectUrl = newUrl.Url;
}
}
else
{
log.LogInformation("Bad Link, resorting to fallback.");
}
var res = req.CreateResponse(HttpStatusCode.Redirect);
res.Headers.Add("Location", redirectUrl);
return(res);
}
public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log,
ExecutionContext context,
ClaimsPrincipal principal)
{
log.LogInformation($"C# HTTP trigger function processed this request: {req}");
string userId = string.Empty;
ShortRequest input;
var result = new ShortResponse();
try
{
var invalidRequest = Utility.CatchUnauthorize(principal, log);
if (invalidRequest != null)
{
return(invalidRequest);
}
else
{
userId = principal.FindFirst(ClaimTypes.GivenName).Value;
log.LogInformation("Authenticated user {user}.", userId);
}
// Validation of the inputs
if (req == null)
{
return(new BadRequestObjectResult(new { StatusCode = HttpStatusCode.NotFound }));
}
using (var reader = new StreamReader(req.Body))
{
var strBody = reader.ReadToEnd();
input = JsonSerializer.Deserialize <ShortRequest>(strBody, new JsonSerializerOptions {
PropertyNameCaseInsensitive = true
});
if (input == null)
{
return(new BadRequestObjectResult(new { StatusCode = HttpStatusCode.NotFound }));
}
}
// If the Url parameter only contains whitespaces or is empty return with BadRequest.
if (string.IsNullOrWhiteSpace(input.Url))
{
return(new BadRequestObjectResult(new { StatusCode = HttpStatusCode.BadRequest, Message = "The url parameter can not be empty." }));
}
// Validates if input.url is a valid aboslute url, aka is a complete refrence to the resource, ex: http(s)://google.com
if (!Uri.IsWellFormedUriString(input.Url, UriKind.Absolute))
{
return(new BadRequestObjectResult(new
{
StatusCode = HttpStatusCode.BadRequest,
Message = $"{input.Url} is not a valid absolute Url. The Url parameter must start with 'http://' or 'http://'."
}));
}
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
StorageTableHelper stgHelper = new StorageTableHelper(config["UlsDataStorage"]);
string longUrl = input.Url.Trim();
string vanity = string.IsNullOrWhiteSpace(input.Vanity) ? "" : input.Vanity.Trim();
string title = string.IsNullOrWhiteSpace(input.Title) ? "" : input.Title.Trim();
ShortUrlEntity newRow;
if (!string.IsNullOrEmpty(vanity))
{
newRow = new ShortUrlEntity(longUrl, vanity, title, input.Schedules);
if (await stgHelper.IfShortUrlEntityExist(newRow))
{
return(new ConflictObjectResult(new{ Message = "This Short URL already exist." }));
}
}
else
{
newRow = new ShortUrlEntity(longUrl, await Utility.GetValidEndUrl(vanity, stgHelper), title, input.Schedules);
}
await stgHelper.SaveShortUrlEntity(newRow);
var host = string.IsNullOrEmpty(config["customDomain"]) ? req.Host.Host: config["customDomain"].ToString();
result = new ShortResponse(host, newRow.Url, newRow.RowKey, newRow.Title);
log.LogInformation("Short Url created.");
}
catch (Exception ex)
{
log.LogError(ex, "An unexpected error was encountered.");
return(new BadRequestObjectResult(new
{
message = ex.Message,
StatusCode = HttpStatusCode.BadRequest
}));
}
return(new OkObjectResult(result));
}
public static async Task <HttpResponseMessage> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequestMessage req,
ILogger log,
ExecutionContext context)
{
log.LogInformation($"C# HTTP trigger function processed this request: {req}");
// Validation of the inputs
if (req == null)
{
return(req.CreateResponse(HttpStatusCode.NotFound));
}
ShortRequest input = await req.Content.ReadAsAsync <ShortRequest>();
if (input == null)
{
return(req.CreateResponse(HttpStatusCode.NotFound));
}
// If the Url parameter only contains whitespaces or is empty return with BadRequest.
if (string.IsNullOrWhiteSpace(input.Url))
{
return(req.CreateErrorResponse(HttpStatusCode.BadRequest, "The url parameter can not be empty."));
}
// Validates if input.url is a valid aboslute url, aka is a complete refrence to the resource, ex: http(s)://google.com
if (!Uri.IsWellFormedUriString(input.Url, UriKind.Absolute))
{
return(req.CreateErrorResponse(HttpStatusCode.BadRequest, $"{input.Url} is not a valid absolute Url. The Url parameter must start with 'http://' or 'http://'."));
}
var result = new ShortResponse();
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
StorageTableHelper stgHelper = new StorageTableHelper(config["UlsDataStorage"]);
try
{
string longUrl = input.Url.Trim();
string vanity = string.IsNullOrWhiteSpace(input.Vanity) ? "" : input.Vanity.Trim();
string title = string.IsNullOrWhiteSpace(input.Title) ? "" : input.Title.Trim();
ShortUrlEntity newRow;
if (!string.IsNullOrEmpty(vanity))
{
newRow = new ShortUrlEntity(longUrl, vanity, title);
if (await stgHelper.IfShortUrlEntityExist(newRow))
{
return(req.CreateResponse(HttpStatusCode.Conflict, "This Short URL already exist."));
}
}
else
{
newRow = new ShortUrlEntity(longUrl, Utility.GetValidEndUrl(vanity), title);
}
await stgHelper.SaveShortUrlEntity(newRow);
var host = req.RequestUri.GetLeftPart(UriPartial.Authority);
log.LogInformation($"-> host = {host}");
result = new ShortResponse(host, newRow.Url, newRow.RowKey, newRow.Title);
log.LogInformation("Short Url created.");
}
catch (Exception ex)
{
log.LogError(ex, "An unexpected error was encountered.");
return(req.CreateResponse(HttpStatusCode.BadRequest, ex));
}
return(req.CreateResponse(HttpStatusCode.OK, result));
}
public static async Task <HttpResponseMessage> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequestMessage req,
ILogger log,
ExecutionContext context)
{
log.LogInformation($"C# HTTP trigger function processed this request: {req}");
// Validation of the inputs
if (req == null)
{
return(req.CreateResponse(HttpStatusCode.NotFound));
}
ShortRequest input = await req.Content.ReadAsAsync <ShortRequest>();
if (input == null)
{
return(req.CreateResponse(HttpStatusCode.NotFound));
}
var result = new ShortResponse();
var config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
StorageTableHelper stgHelper = new StorageTableHelper(config["UlsDataStorage"]);
try
{
string longUrl = input.Url.Trim();
string vanity = input.Vanity.Trim();
ShortUrlEntity newRow;
if (!string.IsNullOrEmpty(vanity))
{
newRow = new ShortUrlEntity(longUrl, vanity);
if (await stgHelper.IfShortUrlEntityExist(newRow))
{
return(req.CreateResponse(HttpStatusCode.Conflict, "This Short URL already exist."));
}
}
else
{
newRow = new ShortUrlEntity(longUrl, await Utility.GetValidEndUrl(vanity, stgHelper));
}
await stgHelper.SaveShortUrlEntity(newRow);
var host = req.RequestUri.GetLeftPart(UriPartial.Authority);
log.LogInformation($"-> host = {host}");
result = new ShortResponse(host, newRow.Url, newRow.RowKey);
log.LogInformation("Short Url created.");
}
catch (Exception ex)
{
log.LogError(ex, "An unexpected error was encountered.");
return(req.CreateResponse(HttpStatusCode.BadRequest, ex));
}
return(req.CreateResponse(HttpStatusCode.OK, result));
}
