Initial import of the Twitterbot
git-svn-id: https://source.geekisp.com/bleep/trunk/Twitterbot@37 a256dd88-e320-0410-9161-d397f098afaa
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tyler
commit
25a3b3a89b
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Net;
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using System.Text;
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using System.Threading;
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using System.Xml;
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using Rss;
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public class Twitterbot
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{
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public const string TwitterUrl = "http://twitter.com/statuses/update.xml";
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public const string TinyUrl = "http://tinyurl.com/api-create.php?url=";
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public const int TwitterMax = 2; // maximum number of feed updates to pull
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public static void Main(string[] args)
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{
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if ( (args.Length < 3) || (args.Length > 4) )
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{
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Console.WriteLine("Twitterbot.exe FEEDFILE [--loop <minutes to sleep>]");
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return;
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}
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string feedFile = args[0];
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int sleep = Convert.ToInt32(args[2]);
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List<Feed> feedList = new List<Feed>();
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Console.WriteLine("Reading {0} and looping {1} minutes", feedFile, sleep);
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XmlDocument feedXml = new XmlDocument();
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XmlNodeList feeds;
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FileStream stream;
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if (File.Exists(feedFile))
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{
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stream = File.OpenRead(feedFile);
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}
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else
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{
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throw new Exception(String.Format("File {0} not found", feedFile));
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}
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feedXml.Load(stream);
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feeds = feedXml.GetElementsByTagName("feed");
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foreach (XmlNode feed in feeds)
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{
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string name = feed.Attributes["name"].InnerText;
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string url = feed.Attributes["url"].InnerText;
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string twitter = feed.Attributes["twitter"].InnerText;
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string pass = feed.Attributes["password"].InnerText;
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feedList.Add(new Feed(name, url, twitter, pass));
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}
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do
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{
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foreach (Feed feed in feedList)
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{
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Console.WriteLine("Reading {0}", feed.Name);
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feed.Rss = RssFeed.Read(feed.Url);
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foreach (RssChannel channel in feed.Rss.Channels)
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{
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List<RssItem> tempList = new List<RssItem>();
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int count = 0;
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foreach (RssItem item in channel.Items)
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{
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if (count == TwitterMax)
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break;
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if (feed.LastItems.Count > 0)
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{
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bool found = false;
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foreach (RssItem lastItem in feed.LastItems)
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{
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if (item.Title == lastItem.Title)
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found = true;
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}
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if (!found)
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tempList.Add(item);
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}
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else
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{
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tempList.Add(item);
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}
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++count;
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}
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feed.LastItems.Clear();
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feed.LastItems.AddRange(tempList);
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break; // on the off-chance there is more than one channel
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}
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foreach (RssItem item in feed.LastItems)
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{
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// Prepare to post to twitter
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string post = PrepareTwitterStatus(item);
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Console.WriteLine("Preparing post: {0}", post);
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if (!PostToTwitter(feed, post))
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{
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Console.WriteLine("Failed to post to twitter!");
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}
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// Patiently count to five to reduce spammage
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Thread.Sleep(5000);
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}
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}
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Console.WriteLine("--------");
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Thread.Sleep((sleep * 1000)*60);
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} while (true);
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}
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public static bool PostToTwitter(Feed feed, string post)
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{
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HttpWebRequest request = GenerateGetOrPostRequest(TwitterUrl, "POST", string.Format("status={0}", post),
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feed.TwitterName, feed.TwitterPass);
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string returnString = string.Empty;
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HttpWebResponse response = null;
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try
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{
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response = (HttpWebResponse)request.GetResponse();
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Stream responseStream = response.GetResponseStream( );
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StreamReader reader = new StreamReader(responseStream,Encoding.UTF8);
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try
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{
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returnString = reader.ReadToEnd( );
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}
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catch (Exception ex)
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{
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Console.WriteLine("Received exception! {0}{1}", Environment.NewLine, ex);
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return false;
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}
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finally
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{
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if (reader != null)
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reader.Close();
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("Received exception! {0}{1}", Environment.NewLine, ex);
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return false;
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}
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finally
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{
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if (response != null)
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response.Close();
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}
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return true;
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}
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public static string PrepareTwitterStatus(RssItem item)
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{
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string postString;
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string titleString = string.Empty;
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bool tainted = false;
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// This wee little bit of information should ensure we don't add any ' shit into the string
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foreach (char oneChar in item.Title.ToCharArray())
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{
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if ( (oneChar == ';') && (tainted) )
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{
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tainted = false;
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continue;
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}
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else if (oneChar == '&')
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{
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tainted = true;
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continue;
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}
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else if (oneChar == ';')
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{
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continue;
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}
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else
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{
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if (!tainted)
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titleString += oneChar;
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}
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}
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if (item.Title.Length > 124)
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{
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postString = titleString.Substring(0,124);
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postString += ".. ";
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}
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else
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{
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postString = titleString;
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}
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postString += string.Format(": {0}", FetchTinyUrl(item.Link));
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return postString;
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}
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public static string FetchTinyUrl(Uri longUrl)
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{
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string tinyurl;
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(string.Format("{0}{1}", TinyUrl, longUrl.ToString()));
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HttpWebResponse response = null;
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try
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{
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response = (HttpWebResponse)request.GetResponse();
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Stream responseStream = response.GetResponseStream( );
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StreamReader reader = new StreamReader(responseStream, Encoding.UTF8);
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try
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{
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tinyurl = reader.ReadToEnd();
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}
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catch (Exception ex)
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{
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Console.WriteLine("Received exception! {0}{1}", Environment.NewLine, ex);
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return string.Empty;
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}
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finally
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{
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if (reader != null)
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reader.Close();
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("Received exception! {0}{1}", Environment.NewLine, ex);
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return string.Empty;
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}
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finally
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{
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if (response != null)
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response.Close();
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}
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return tinyurl;
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}
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public static HttpWebRequest GenerateGetOrPostRequest(string uriString, string method, string postData, string user, string pass)
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{
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if ((method.ToUpper() != "GET") && (method.ToUpper() != "POST"))
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throw new ArgumentException(method + " is not a valid method. Use GET or POST.","method");
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HttpWebRequest httpRequest = (HttpWebRequest)WebRequest.Create(uriString);
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httpRequest.Method = method;
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if (method.ToUpper() =="POST")
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{
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if ( (user != null) && (pass != null) )
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{
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httpRequest.Credentials = new NetworkCredential(user, pass);
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}
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// Get the bytes for the request, should be pre-escaped
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byte[] bytes = Encoding.UTF8.GetBytes(postData);
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// Set the content type of the data being posted.
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httpRequest.ContentType = "application/x-www-form-urlencoded";
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// Set the content length of the string being posted.
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httpRequest.ContentLength = bytes.Length;
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Stream requestStream = httpRequest.GetRequestStream();
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requestStream.Write(bytes,0,bytes.Length);
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// Done updating for POST so close the stream
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requestStream.Close();
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}
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return httpRequest;
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}
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}
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public class Feed
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{
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public string Name;
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public string Url;
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public string TwitterName;
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public string TwitterPass;
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public RssFeed Rss;
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public List<RssItem> LastItems;
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public Feed(string name, string url, string twitter, string pass)
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{
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Name = name;
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Url = url;
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TwitterName = twitter;
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TwitterPass = pass;
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LastItems = new List<RssItem>(10);
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}
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}
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Binary file not shown.
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@ -0,0 +1,27 @@
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<?xml version="1.0"?>
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<project name="Twitterbot" default="bot" basedir=".">
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<description>
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NAnt build file for the C# Twitterbot
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</description>
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<property name="debug" value="true" overwrite="false" />
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<property name="executable" value="Twitterbot.exe"/>
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<tstamp property="build.date" pattern="yyyyMMdd" verbose="true" />
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<target name="bot" description="Default build target">
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<csc target="exe" output="${executable}">
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<references>
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<include name="RSS.NET.dll"/>
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</references>
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<sources>
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<include name="Twitterbot.cs"/>
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</sources>
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</csc>
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</target>
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<target name="clean" description="Clean the Twitterbot">
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<delete file="${executable}" failonerror="true"/>
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</target>
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</project>
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@ -0,0 +1,5 @@
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<feeds>
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<!-- To prevent Xml parsing errors in C#, convert all & -> & -->
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<feed name="Feed Name" url="" twitter="twitterusername" password="twitterpassword"/>
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<feed name="Feed Name Dos" url="" twitter="twitterusername" password="twitterpassword"/>
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</feeds>
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