public override void Execute(NntpSession session)
{
using (INntpConnection connection = session.Repository.CreateConnection())
{
List <INntpGroup> groups =
new List <INntpGroup>(connection.GetGroups());
session.Connection.SendLine("215 List of newsgroups follows");
foreach (INntpGroup group in groups)
{
session.Connection.SendLine("{0}\t{1}",
group.Name, group.Description);
}
session.Connection.SendLine(".");
}
}
public override void Execute(NntpSession session)
{
using (INntpConnection connection = session.Repository.CreateConnection())
{
INntpGroup group;
if (_group == null)
{
if (!GetGroupByCurrentName(connection, session, out group))
{
return;
}
}
else
{
if (!GetGroupByName(connection, session, _group, out group))
{
return;
}
}
if (low == 0)
{
low = group.Low;
}
if (high == 0)
{
high = group.High;
}
session.Context[typeof(INntpArticle)] = low; //???
session.Connection.SendLine("211 {0} {1} {2} {3}",
group.Count, group.Low, group.High, group.Name);
foreach (KeyValuePair <int, INntpArticle> pair in group.GetArticles(low, high))
{
session.Connection.SendLine("{0}", pair.Key);
}
session.Connection.SendLine(".");
}
}
protected static bool GetGroupByCurrentName(INntpConnection connection, NntpSession session, out INntpGroup group)
{
group = null;
if (!session.Context.ContainsKey(typeof(INntpGroup)))
{
session.Connection.SendLine("412 No newsgroup selected");
return(false);
}
group = connection.GetGroup((string)session.Context[typeof(INntpGroup)]);
if (group == null)
{
session.Connection.SendLine("412 No newsgroup selected");
return(false);
}
return(true);
}
protected static bool GetArticleByNumber(INntpConnection connection, NntpSession session, int number, out KeyValuePair <int, INntpArticle> pair)
{
pair = new KeyValuePair <int, INntpArticle>(number, null);
INntpGroup group;
if (!GetGroupByCurrentName(connection, session, out group))
{
return(false);
}
pair = new KeyValuePair <int, INntpArticle>(number, group.GetArticle(number));
if (pair.Value == null)
{
session.Connection.SendLine("423 No article with that number");
return(false);
}
session.Context[typeof(INntpArticle)] = number;
return(true);
}
protected static bool GetArticleByCurrentNumber(INntpConnection connection, NntpSession session, out KeyValuePair <int, INntpArticle> pair)
{
pair = new KeyValuePair <int, INntpArticle>(0, null);
INntpGroup group;
if (!GetGroupByCurrentName(connection, session, out group))
{
return(false);
}
int number = (int)session.Context[typeof(INntpArticle)];
pair = new KeyValuePair <int, INntpArticle>(number, group.GetArticle(number));
if (pair.Value == null)
{
session.Connection.SendLine("420 Current article number is invalid");
return(false);
}
return(true);
}
public override void Execute(NntpSession session)
{
using (INntpConnection connection = session.Repository.CreateConnection())
{
KeyValuePair <int, INntpArticle> pair;
switch (type)
{
case RequestType.ByMessageID:
if (!GetArticleByMessageID(connection, session, id, out pair))
{
return;
}
break;
case RequestType.ByArticleNumber:
if (!GetArticleByNumber(connection, session, number, out pair))
{
return;
}
break;
case RequestType.ByCurrentArticleNumber:
if (!GetArticleByCurrentNumber(connection, session, out pair))
{
return;
}
break;
default:
throw new InvalidOperationException("Unknown request type");
}
if (name == "ARTICLE")
{
session.Connection.SendLine("220 {0} {1}", pair.Key, pair.Value.MessageID);
}
if (name == "HEAD")
{
session.Connection.SendLine("221 {0} {1}", pair.Key, pair.Value.MessageID);
}
if (name == "BODY")
{
session.Connection.SendLine("222 {0} {1}", pair.Key, pair.Value.MessageID);
}
if (name == "STAT")
{
session.Connection.SendLine("223 {0} {1}", pair.Key, pair.Value.MessageID);
}
if (name == "ARTICLE" || name == "HEAD")
{
SendHeader(session, NntpHeaderName.MessageID, pair.Value.MessageID);
SendHeader(session, NntpHeaderName.Subject, pair.Value.Subject);
SendHeader(session, NntpHeaderName.From, pair.Value.From);
SendHeader(session, NntpHeaderName.Date, pair.Value.Date);
SendHeader(session, NntpHeaderName.Newsgroups, pair.Value.Newsgroups);
if (pair.Value.References != "")
{
SendHeader(session, NntpHeaderName.References, pair.Value.References);
}
foreach (KeyValuePair <string, string> header in pair.Value.Headers)
{
SendHeader(session, header.Key, header.Value);
}
}
if (name == "ARTICLE")
{
session.Connection.SendLine("");
}
if (name == "ARTICLE" || name == "BODY")
{
string[] lines = pair.Value.Body.Split('\n');
for (int i = 0; i < lines.Length; i++)
{
string line = lines[i];
if (line.StartsWith("."))
{
line = '.' + line;
}
session.Connection.SendLine(line);
}
}
if (name != "STAT")
{
session.Connection.SendLine(".");
}
}
}
private static void SendHeader(NntpSession session, string name, string value)
{
session.Connection.SendLine("{0}: {1}", name, value);
}
public override void Execute(NntpSession session)
{
session.Connection.SendLine("231 List of new newsgroups follows");
session.Connection.SendLine(".");
}
public abstract void Execute(NntpSession session);
public override void Execute(NntpSession session)
{
session.Connection.SendLine("200 Reader mode, posting permitted");
}
public override void Execute(NntpSession session)
{
variant.Execute(session);
}
public override void Execute(NntpSession session)
{
using (INntpConnection connection = session.Repository.CreateConnection())
{
List <KeyValuePair <int, INntpArticle> > pairs = new List <KeyValuePair <int, INntpArticle> >();
switch (type)
{
case RequestType.ByMessageId:
{
KeyValuePair <int, INntpArticle> pair;
if (!GetArticleByMessageID(connection, session, id, out pair))
{
return;
}
pairs.Add(pair);
}
break;
case RequestType.ByArticleNumberRange:
{
INntpGroup group;
if (!GetGroupByCurrentName(connection, session, out group))
{
return;
}
if (high == 0)
{
high = group.High;
}
pairs.AddRange(group.GetArticles(low, high));
if (pairs.Count == 0)
{
session.Connection.SendLine("423 No articles in that range");
return;
}
}
break;
case RequestType.ByCurrentArticleNumber:
{
KeyValuePair <int, INntpArticle> pair;
if (!GetArticleByCurrentNumber(connection, session, out pair))
{
return;
}
pairs.Add(pair);
}
break;
}
session.Connection.SendLine("224 Overview information follows");
foreach (KeyValuePair <int, INntpArticle> pair in pairs)
{
session.Connection.SendLine("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}\t{7}",
pair.Key, pair.Value.Subject, pair.Value.From, pair.Value.Date,
pair.Value.MessageID, pair.Value.References, pair.Value.Bytes, pair.Value.Lines);
}
session.Connection.SendLine(".");
}
}
public override void Execute(NntpSession session)
{
session.Connection.SendLine("205 Connection closing");
session.Connection.Close();
}
public override void Execute(NntpSession session)
{
session.Connection.SendLine("111 {0}",
DateTime.Now.ToUniversalTime().ToString("yyyyMMddHHmmss"));
}
