public static async Task Run([TimerTrigger("0 */1 * * * *")] TimerInfo myTimer, TraceWriter log)
{
String[] userIgnoreList = null;
// connect to Reddit
WebAgent agent = new BotWebAgent(UserName, Password, ClientId, ClientSecret, RedirectUrl);
Reddit reddit = new Reddit(agent, true);
// retrive subreddit
Subreddit sub = await reddit.GetSubredditAsync(SubredditName);
// get user ignore list from a wiki page
try
{
WikiPage page = sub.Wiki.GetPage(SubredditUserIgnorePage);
string pContent = page.MarkdownContent.Replace(" ", String.Empty).ToLower();
userIgnoreList = pContent.Split(new[] { "\r\n\r\n" }, StringSplitOptions.RemoveEmptyEntries);
}
catch
{
userIgnoreList = new String[0];
}
// get first 5 postings
// and sort in ascending order
IEnumerable <Post> postings = sub.New.GetListing(5)
.OrderBy(p => p.Created);
// Do not process if this is the first run. Just cache the
// last processed date and time. If the process is killed
// and restarted, this method may miss new postings. If an issue,
// implement persistent storage to store this value.
if (lastProcessed != DateTime.MinValue)
{
bool hasNewPost = false;
foreach (Post post in postings)
{
// this is a new posting!
if (post.Created > lastProcessed)
{
hasNewPost = true;
lastProcessed = post.Created;
log.Info(String.Format("NEW POST DETECTED. ID: {0}, Title: {1}", post.Id, post.Title));
log.Info(post.SelfText.Count().ToString());
// process only if the following conditions are true:
// 1: The title contains the keyword
// 2: The post is less than 200 characters
// 3: The post does not contain a link
if (post.Title.ToLower().Contains(PostTitleKeyword) &&
post.SelfText.Count() < 200 &&
!post.SelfText.ToLower().Contains("https://") &&
!post.SelfText.ToLower().Contains("http://"))
{
log.Info("Keyword detected ...");
// check to see if user is in the ignore list
bool authorInIgnoreList = userIgnoreList.Contains <String>(post.Author.Name.ToLower());
// ignore if poster is on ignore list
if (authorInIgnoreList)
{
log.Info(String.Format("{0} is in the ignore list. Ignoring ...", post.Author.Name));
// ignore if there is a comment
}
else if (post.CommentCount > 0)
{
log.Info(String.Format("The post has already been commented on. Ignoring ...", post.Author.Name));
}
else
{
log.Info("Posting first comment ...");
Comment c = post.Comment(CommentText);
RedditUser pAuthor = post.Author;
log.Info("Sending OP a private message ...");
reddit.ComposePrivateMessage(PrivateMessageTitle, PrivateMessageBody, post.Author.Name);
}
}
else
{
log.Info("No keyword detected");
}
}
{
log.Info(String.Format("Skipping post: {0}", post.Title));
}
}
if (hasNewPost == false)
{
log.Info("No posts detected");
}
}
else
{
// store the last timestamp and skip
// this iteration
lastProcessed = postings.Last().Created;
}
log.Info($"C# Timer trigger function executed at: {DateTime.Now}");
}
public void ComposePrivateMessage(string subject, string body, string to, string captchaId = "", string captchaAnswer = "")
{
reddit.ComposePrivateMessage(subject, body, to, captchaId, captchaAnswer);
}
public void SendRedditMessage(string user, string subject, string message)
{
_reddit.ComposePrivateMessage(subject, message, user);
}