private string BuildPayload(Notification notification)
{
// Get some more data about this commit via "svnlook"
notification.CommitMessage = CommandLineHelper.ExecuteProcess(ConfigurationHelper.SVNLookProcessPath, string.Format("log -r {0} {1}", notification.Revision, notification.RepositoryPath));
notification.CommitAuthor = CommandLineHelper.ExecuteProcess(ConfigurationHelper.SVNLookProcessPath, string.Format("author -r {0} {1}", notification.Revision, notification.RepositoryPath));
// Ensure valid formatting of message
if(notification.CommitMessage.Contains("\""))
notification.CommitMessage = notification.CommitMessage.Replace("\"", "\\\"");
if (notification.CommitAuthor.Contains("\""))
notification.CommitAuthor = notification.CommitAuthor.Replace("\"", "\\\"");
// Trim off unnecessary trailing CRLFs
notification.CommitMessage = notification.CommitMessage.TrimEnd(new char[] { '\r', '\n' });
notification.CommitAuthor = notification.CommitAuthor.TrimEnd(new char[] { '\r', '\n' });
// Use advanced message formatting for incoming webhooks
var payloadBody = new StringBuilder();
payloadBody.Append("{"); // begin payload
payloadBody.Append(" \"username\" : \"VisualSVN Server\", ");
payloadBody.Append(" \"icon_url\" : \"http://s3.amazonaws.com/scs-public/visualsvn_96.png\", ");
payloadBody.Append(" \"attachments\" : [ { "); // begin attachments
if (!string.IsNullOrEmpty(notification.Channel))
payloadBody.Append(string.Format(" \"channel\" : \"{0}\", ", notification.Channel));
if (!string.IsNullOrEmpty(notification.RepositoryName))
{
payloadBody.Append(string.Format(" \"fallback\" : \"[{0}] New commit by {1}: r{2}: {3}\", ", notification.RepositoryName, notification.CommitAuthor, notification.Revision, notification.CommitMessage));
payloadBody.Append(string.Format(" \"pretext\" : \"[{0}] New commit by {1}\", ", notification.RepositoryName, notification.CommitAuthor));
}
else
{
payloadBody.Append(string.Format(" \"fallback\" : \"New commit by {0}: r{1}: {2}\", ", notification.CommitAuthor, notification.Revision, notification.CommitMessage));
payloadBody.Append(string.Format(" \"pretext\" : \"New commit by {0}\", ", notification.CommitAuthor));
}
if (!string.IsNullOrEmpty(notification.RepositoryURL))
{
if (notification.RepositoryURL.Contains("/svn/"))
notification.RepositoryURL = notification.RepositoryURL.Replace("/svn/", "/!/#");
notification.RepositoryURL += "/commit/r" + notification.Revision;
payloadBody.Append(string.Format(" \"text\" : \"<{0}|r{1}>: {2}\", ", notification.RepositoryURL, notification.Revision, notification.CommitMessage));
}
else
payloadBody.Append(string.Format(" \"text\" : \"r{0}: {1}\", ", notification.Revision, notification.CommitMessage));
payloadBody.Append(" \"color\" : \"#3886C0\" ");
payloadBody.Append("} ]"); // end attachments
payloadBody.Append("}"); // end payload
return payloadBody.ToString();
}
public async Task<bool> PostNotificationAsync(Notification notification)
{
var isSuccess = false;
try
{
if (string.IsNullOrEmpty(ConfigurationHelper.SlackWebhookURL))
Logger.Shared.WriteError("Missing Slack Webhook URL");
else if(ConfigurationHelper.SlackWebhookURL == "https://hooks.slack.com/services/foo/bar/baz")
Logger.Shared.WriteError("Found default Slack Webhook URL in config file. Ensure you've replaced it with your own.");
else if (string.IsNullOrEmpty(notification.RepositoryPath))
Logger.Shared.WriteError("Missing repo path");
else if (string.IsNullOrEmpty(notification.Revision))
Logger.Shared.WriteError("Missing revision number");
else
{
// Post to Slack
using (var client = new HttpClient())
{
var request = new HttpRequestMessage(HttpMethod.Post, ConfigurationHelper.SlackWebhookURL);
var keyValues = new List<KeyValuePair<string, string>>();
var payload = BuildPayload(notification);
keyValues.Add(new KeyValuePair<string, string>("payload", payload));
request.Content = new FormUrlEncodedContent(keyValues);
using (var response = await client.SendAsync(request))
using (var content = response.Content)
{
if (!response.IsSuccessStatusCode)
{
var result = await content.ReadAsStringAsync();
Logger.Shared.WriteError("Failed to send notification: " + response.StatusCode + " => " + result);
if (result == "Payload was not valid JSON")
Logger.Shared.WriteError("payload = " + payload);
}
}
}
}
}
catch(Exception e)
{
Logger.Shared.WriteError(e);
}
if (OnFinished != null)
OnFinished(this, null);
return isSuccess;
}
static void Main()
{
string[] args = Environment.GetCommandLineArgs();
if (args != null && args.Length > 0)
{
var argList = args.ToList();
var notification = new Notification();
foreach(var arg in argList)
{
if (arg.ToLower().StartsWith(FLAG_PATH) && arg.Length > FLAG_PATH.Length)
notification.RepositoryPath = arg.Substring(FLAG_PATH.Length);
else if (arg.ToLower().StartsWith(FLAG_REVISION) && arg.Length > FLAG_REVISION.Length)
notification.Revision = arg.Substring(FLAG_REVISION.Length);
else if (arg.ToLower().StartsWith(FLAG_NAME) && arg.Length > FLAG_NAME.Length)
notification.RepositoryName = arg.Substring(FLAG_NAME.Length);
else if (arg.ToLower().StartsWith(FLAG_URL) && arg.Length > FLAG_URL.Length)
notification.RepositoryURL = arg.Substring(FLAG_URL.Length);
else if (arg.ToLower().StartsWith(FLAG_CHANNEL) && arg.Length > FLAG_CHANNEL.Length)
notification.Channel = arg.Substring(FLAG_CHANNEL.Length);
}
Task.Run(() => new SlackNotifier().PostNotificationAsync(notification)).Wait();
}
}