public virtual GithubEvent Validate(ApplicationLoadBalancerRequest request)
{
GithubEvent payload = null !;
string eventType;
ValidateMethod(request);
ValidateEvent(request, out eventType);
switch (eventType)
{
case "push":
{
ValidatePushBodyFormat(request, out var pushPayload);
payload = pushPayload;
break;
}
case "pull_request":
{
ValidatePullRequestBodyFormat(request, out var pullPayload);
payload = pullPayload;
break;
}
}
ValidateContentsUrlPresent(payload);
ValidateOwner(payload);
ValidateSignature(request);
return(payload);
}
private static void ValidateContentsUrlPresent(GithubEvent payload)
{
if (payload.Repository?.ContentsUrl == null)
{
throw new NoContentsUrlException();
}
}
private static string GetOwner(GithubEvent githubEvent)
{
switch (githubEvent)
{
case PushEvent pushEvent: return(pushEvent.Repository?.Owner?.Name);
case PullRequestEvent pullRequestEvent: return(pullRequestEvent.Repository?.Owner?.Login);
}
return("");
}
public virtual async Task <string> FetchCommitMessage(GithubEvent @event)
{
switch (@event)
{
case PushEvent pushEvent: return(FetchPushEventCommitMessage(pushEvent));
case PullRequestEvent pullRequestEvent: return(await FetchPullRequestEventCommitMessage(pullRequestEvent));
}
return("");
}
private void ValidateOwner(GithubEvent payload)
{
var expectedOwner = config.GithubOwner;
if (expectedOwner == null)
{
return;
}
var matcher = new Regex("https:\\/\\/api\\.github\\.com\\/repos\\/([a-zA-Z0-9\\-\\._]+)\\/([a-zA-Z0-9\\-\\._]+)\\/contents\\/{\\+path}");
var repositoryOwner = GetOwner(payload);
var contentsUrlMatches = matcher.Match(payload.Repository?.ContentsUrl).Groups[1]?.Captures;
var contentsUrlOwner = contentsUrlMatches.Count == 1 ? contentsUrlMatches[0].Value : null;
if (repositoryOwner != expectedOwner)
{
throw new UnexpectedOwnerException($"Unexpected repository owner '{repositoryOwner}'");
}
if (contentsUrlOwner != expectedOwner)
{
throw new UnexpectedOwnerException($"Unexpected contents url owner: '{contentsUrlOwner}'");
}
}