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Handle HTTP Post for WebHook
// POST /api/githubpushes
// FAILS: Content-Type: application/json
// WORKS: Content-Type: application/x-www-form-urlencoded
public HttpResponseMessage<string> Post(
// not needed, but might be if more complex: [FromBody]
SimpleFormData webHookData)
{
var pushManifestJson = webHookData.Payload;
var pushManifest = JsonConvert.DeserializeObject<GithubPushManifest>(pushManifestJson);
if (!IsValidSourceAddress())
{
return new HttpResponseMessage<string>("This service can only be invoked by Github WebHooks.", HttpStatusCode.Forbidden);
}
else
{
return InnerPost(pushManifest, pushManifestJson);
}
}
public HttpResponseMessage<string> InnerPost(GithubPushManifest pushManifest, string pushManifestJson)
{
string lastCommitText = GetLastCommitText(pushManifest);
try
{
Uri fullUri = GetSharedAccessSignatureUri(Request.RequestUri); // assumes fullUri is piggybacking as a Query String
UpdateBlobContents(lastCommitText, fullUri);
return new HttpResponseMessage<string>(HttpStatusCode.Created);
}
catch (Exception ex)
{
return new HttpResponseMessage<string>(ex.Message + " : " + new TracerBullet().GetContext(), HttpStatusCode.BadRequest);
}
}
private static bool IsValidGithubWebHookIpAddress(string ipAddress)
{
var validGithubHookIpAddresses = new List<string> { "207.97.227.253", "50.57.128.197", "108.171.174.178", // <<= REAL
"108.171.174.178", "173.48.23.122", "50.57.128.197" }; // <<= NOT SURE (include's Bill's home IP Addr
// throws exception if not found: var found = validGithubHookIpAddresses.First(goodIp => goodIp == ipAddress);
var found = validGithubHookIpAddresses.Find(goodIp => goodIp == ipAddress);
return found != null;
}
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