public static void DownloadHeadersFromGroup(IResource group)
{
Guard.NullArgument(group, "group");
if (!Utils.IsNetworkConnectedLight())
{
return;
}
NewsgroupResource groupResource = new NewsgroupResource(group);
IResource server = groupResource.Server;
if (server != null)
{
NntpConnectionPool.GetConnection(server, "background").StartUnit(
Int32.MaxValue - 3, new NntpDownloadHeadersUnit(groupResource, JobPriority.AboveNormal));
/**
* also download bodies if necessary
*/
if (new ServerResource(server).DownloadBodiesOnDeliver)
{
NntpConnectionPool.GetConnection(server, "background").StartUnit(
0, new NntpDeliverEmptyArticlesFromGroupsUnit(group.ToResourceList(), null));
}
}
}
private void StartGroup(IResource group)
{
NewsgroupResource groupResource = new NewsgroupResource(group);
NntpDownloadHeadersUnit unit = new NntpDownloadHeadersUnit(groupResource, JobPriority.Normal);
unit.Finished += new AsciiProtocolUnitDelegate(group_Finished);
StartUnit(unit, _connection);
}
public bool AcceptLink(IResource displayedResource, int propId, IResource targetResource, ref string linkTooltip)
{
if (propId == NntpPlugin._propTo && targetResource.Type == NntpPlugin._newsGroup)
{
linkTooltip = targetResource.DisplayName;
IResource server = new NewsgroupResource(targetResource).Server;
if (server != null)
{
linkTooltip = linkTooltip + " at " + server.DisplayName;
}
}
return(true);
}
private void StartGroup(IResource group)
{
_group = new NewsgroupResource(group);
if (!_group.IsSubscribed)
{
StartNextGroup();
}
else
{
Core.UIManager.GetStatusWriter(typeof(NntpDeliverEmptyArticlesFromGroupsUnit),
StatusPane.Network).ShowStatus("Downloading articles from " + _group.DisplayName + "...");
NntpSetGroupUnit setGroupUnit = new NntpSetGroupUnit(_group);
setGroupUnit.Finished += new AsciiProtocolUnitDelegate(setGroupUnit_Finished);
StartUnit(setGroupUnit, _connection);
}
}
public static void DownloadAllHeadersFromGroup(IResource group)
{
Guard.NullArgument(group, "group");
if (!Utils.IsNetworkConnectedLight())
{
return;
}
NewsgroupResource groupResource = new NewsgroupResource(group);
IResource server = groupResource.Server;
if (server != null)
{
NntpConnection connection = NntpConnectionPool.GetConnection(server, "background");
connection.StartUnit(Int32.MaxValue - 5,
new NntpDownloadAllHeadersUnit(groupResource, JobPriority.AboveNormal));
}
}
private static void ResourceRenamedImpl(IResource res, string newName)
{
if (res.IsDeleted)
{
return;
}
if (res.Type == NntpPlugin._newsServer)
{
res.DisplayName = newName;
}
else if (res.Type == NntpPlugin._newsGroup)
{
NewsgroupResource group = new NewsgroupResource(res);
group.UserDisplayName = newName;
group.InvalidateDisplayName();
}
else
{
res.SetProp(Core.Props.Name, newName);
}
}
public static DialogResult Unsubscribe(IResourceList groups, out bool deleteArticles)
{
if (groups.Count > 0)
{
if (NewsgroupResource.AllUnsubscribed(groups))
{
deleteArticles = true;
if (groups.Count == 1)
{
return(MessageBox.Show(
"Do you wish to delete " + groups[0].DisplayName + " with all messages?",
"Remove Newsgroup", MessageBoxButtons.OKCancel, MessageBoxIcon.Question));
}
else
{
return(MessageBox.Show(
"Do you wish to delete selected newsgroups with all messages?",
"Remove Newsgroups", MessageBoxButtons.OKCancel, MessageBoxIcon.Question));
}
}
else
{
UnsubscribeForm theForm = new UnsubscribeForm();
theForm._warningLabel.Text = "Do you wish to unsubscribe from";
if (groups.Count == 1)
{
theForm._groupName.Text = groups[0].DisplayName + "?";
}
else
{
theForm._groupName.Text = groups.Count.ToString() + " selected newsgroups?";
}
DialogResult result = theForm.ShowDialog(Core.MainWindow);
deleteArticles = !theForm._preserveArchiveBox.Checked;
return(result);
}
}
deleteArticles = false;
return(DialogResult.Cancel);
}
public static void PostArticle(IResource draftArticle, AsciiProtocolUnitDelegate finishedMethod, bool invokedByUser)
{
Guard.NullArgument(draftArticle, "draftArticle");
if (!Utils.IsNetworkConnectedLight())
{
return;
}
lock ( _articlesBeenPosted )
{
if (_articlesBeenPosted.Contains(draftArticle))
{
return;
}
_articlesBeenPosted.Add(draftArticle);
}
IResourceList groups = draftArticle.GetLinksFrom(NntpPlugin._newsGroup, NntpPlugin._propTo);
if (groups.Count > 0)
{
IResource server = new NewsgroupResource(groups[0]).Server;
if (server != null)
{
NntpConnection postConnection = NntpConnectionPool.GetConnection(server, "foreground");
NntpPostArticleUnit postUnit =
new NntpPostArticleUnit(draftArticle, server, finishedMethod, invokedByUser);
postUnit.Finished += postUnit_Finished;
postConnection.StartUnit(invokedByUser ? Int32.MaxValue - 2 : 0, postUnit);
return;
}
}
ArticlePostedOrFailed(draftArticle);
if (finishedMethod != null)
{
finishedMethod(null);
}
}
public NntpDownloadAllHeadersUnit(NewsgroupResource group, JobPriority priority)
: base(group, priority)
{
}
protected NntpDownloadHeadersUnitBase(NewsgroupResource group, JobPriority priority)
{
_group = group;
_priority = priority;
}
public NntpSetGroupUnit(NewsgroupResource group)
{
_group = group;
}
public override void DisplayResource(IResource article, WordPtr[] wordsToHighlight)
{
if (_downloadLabel == null)
{
_downloadLabel = new JetLinkLabel();
_downloadLabel.Text = "Click here or press F5 to download the article";
_downloadLabel.BackColor = Color.Transparent;
_downloadLabel.ClickableLink = true;
_downloadLabel.Click += _downloadLabel_Click;
Controls.Add(_downloadLabel);
}
_downloadLabel.Visible = false;
_ieBrowser.Visible = true;
bool redisplayed = _articleIsRedisplayed;
_articleIsRedisplayed = false;
DisposeArticleListener();
// Set the subject, highlight if needed
ShowSubject(article.GetPropText(Core.Props.Subject), wordsToHighlight);
try
{
// The content being indexed (plaintext) is not the same that is
// displayed (autogenerated HTML), so the offsets are updated by
// this method to correspond to the new formatting.
string sFormattedArticle = ArticleBody2Html(article, ref wordsToHighlight);
ShowHtml(sFormattedArticle, _ctxRestricted, wordsToHighlight);
}
catch (Exception e)
{
Utils.DisplayException(e, "Error");
return;
}
/**
* set last selected article for article's owner
*/
IResource owner = _rbrowser.OwnerResource;
if (owner != null && (owner.Type == NntpPlugin._newsGroup ||
owner.Type == NntpPlugin._newsFolder || owner.Type == NntpPlugin._newsServer))
{
ResourceProxy proxy = new ResourceProxy(owner);
proxy.AsyncPriority = JobPriority.AboveNormal;
proxy.SetPropAsync(NntpPlugin._propLastSelectedArticle, article.Id);
}
_articleListener = article.ToResourceListLive();
_articleListener.ResourceChanged += _articleListener_ResourceChanged;
bool hasNoBody = article.HasProp(NntpPlugin._propHasNoBody);
if (!hasNoBody)
{
Core.UIManager.GetStatusWriter(this, StatusPane.Network).ClearStatus();
}
else
{
if (!Utils.IsNetworkConnectedLight())
{
ShowHtml("<pre>" + NntpPlugin._networkUnavailable + ".</pre>", WebSecurityContext.Internet, null);
return;
}
IResourceList groups = article.GetLinksOfType(NntpPlugin._newsGroup, NntpPlugin._propTo);
if (groups.Count > 0)
{
foreach (IResource groupRes in groups.ValidResources)
{
IResource server = new NewsgroupResource(groupRes).Server;
if (server != null)
{
ServerResource serverRes = new ServerResource(server);
if (redisplayed || serverRes.DownloadBodiesOnDeliver || serverRes.DownloadBodyOnSelection)
{
Core.UIManager.GetStatusWriter(this, StatusPane.Network).ShowStatus("Downloading article...");
NntpConnection articlesConnection = NntpConnectionPool.GetConnection(server, "foreground");
NntpDownloadArticleUnit downloadUnit =
new NntpDownloadArticleUnit(article, groupRes, JobPriority.Immediate, true);
downloadUnit.OnProgress += downloadUnit_OnProgress;
ShowHtml("<pre>Downloading article: 0%</pre>", WebSecurityContext.Internet, null);
articlesConnection.StartUnit(Int32.MaxValue - 1, downloadUnit);
return;
}
}
}
if (!redisplayed)
{
Point location = _ieBrowser.Location;
_downloadLabel.Location = new Point(location.X + 8, location.Y + 8);
_downloadLabel.Visible = true;
_ieBrowser.Visible = false;
}
}
}
}
/**
* all article's processing should be performed in the resource thread
* this function is called if article is downloaded from a group
*/
public static void CreateArticle(string[] lines, IResource groupRes, string articleId)
{
// if user has already unsubscribed from the group or the
// groups is already deleted then skip the article
IResource server = new NewsgroupResource(groupRes).Server;
if (server == null)
{
return;
}
articleId = ParseTools.EscapeCaseSensitiveString(articleId);
// is article deleted?
if (NewsArticleHelper.IsArticleDeleted(articleId))
{
return;
}
PrepareLines(lines);
try
{
ServerResource serverRes = new ServerResource(server);
string charset = serverRes.Charset;
bool bodyStarted = false;
string line;
string content_type = string.Empty;
string content_transfer_encoding = string.Empty;
IContact sender = null;
DateTime date = DateTime.MinValue;
bool mySelf = false;
bool newArticle;
IResource article = Core.ResourceStore.FindUniqueResource(
NntpPlugin._newsArticle, NntpPlugin._propArticleId, articleId);
if (article != null)
{
if (!article.HasProp(NntpPlugin._propHasNoBody))
{
return;
}
article.BeginUpdate();
newArticle = false;
}
else
{
article = Core.ResourceStore.BeginNewResource(NntpPlugin._newsArticle);
newArticle = true;
}
for (int i = 0; i < lines.Length; ++i)
{
line = lines[i];
if (line == null)
{
continue;
}
if (bodyStarted)
{
_bodyBuilder.Append(line);
}
else
{
_headersBuilder.Append(line);
_headersBuilder.Append("\r\n");
if (Utils.StartsWith(line, "from: ", true))
{
string from = line.Substring(6);
article.SetProp(NntpPlugin._propRawFrom, from);
mySelf = ParseFrom(article, TranslateHeader(charset, from), out sender);
UpdateLastCorrespondDate(sender, date);
}
else if (Utils.StartsWith(line, "subject: ", true))
{
string subject = line.Substring(9);
article.SetProp(NntpPlugin._propRawSubject, subject);
article.SetProp(Core.Props.Subject, TranslateHeader(charset, subject));
}
else if (Utils.StartsWith(line, "message-id: ", true))
{
ParseMessageId(article, ParseTools.EscapeCaseSensitiveString(line.Substring(12)), articleId);
}
else if (Utils.StartsWith(line, "newsgroups: ", true))
{
if (line.IndexOf(',') > 12)
{
ParseNewsgroups(article, groupRes, serverRes, line.Substring(12));
}
}
else if (Utils.StartsWith(line, "date: ", true))
{
date = ParseDate(article, line.Substring(6));
UpdateLastCorrespondDate(sender, date);
}
else if (Utils.StartsWith(line, "references: ", true))
{
ParseReferences(article, line.Substring(12));
}
else if (Utils.StartsWith(line, "content-type: ", true))
{
content_type = line.Substring(14);
}
else if (Utils.StartsWith(line, "followup-to: ", true))
{
article.SetProp(NntpPlugin._propFollowupTo, line.Substring(13));
}
else if (Utils.StartsWith(line, "content-transfer-encoding: ", true))
{
content_transfer_encoding = line.Substring(27);
}
else if (line == "\r\n")
{
bodyStarted = true;
}
}
}
ProcessBody(_bodyBuilder.ToString(), content_type, content_transfer_encoding, article, charset);
article.SetProp(NntpPlugin._propArticleHeaders, _headersBuilder.ToString());
article.AddLink(NntpPlugin._propTo, groupRes);
if (article.GetPropText(NntpPlugin._propArticleId).Length == 0)
{
article.SetProp(NntpPlugin._propArticleId, articleId);
}
if (newArticle)
{
article.SetProp(NntpPlugin._propIsUnread, true);
IResourceList categories = Core.CategoryManager.GetResourceCategories(groupRes);
foreach (IResource category in categories)
{
Core.CategoryManager.AddResourceCategory(article, category);
}
Core.FilterEngine.ExecRules(StandardEvents.ResourceReceived, article);
CleanLocalArticle(articleId, article);
}
article.EndUpdate();
CheckArticleInIgnoredThreads(article);
CheckArticleInSelfThread(article);
if (mySelf && serverRes.MarkFromMeAsRead)
{
article.BeginUpdate();
article.DeleteProp(NntpPlugin._propIsUnread);
article.EndUpdate();
}
Core.TextIndexManager.QueryIndexing(article.Id);
}
finally
{
DisposeStringBuilders();
}
}
public static void CreateArticleFromHeaders(string line, IResource groupRes)
{
string[] headers = line.Split('\t');
if (headers.Length <= 5)
{
return;
}
string articleId = ParseTools.EscapeCaseSensitiveString(headers[4]);
if (articleId.Length == 0 || NewsArticleHelper.IsArticleDeleted(articleId))
{
return;
}
// if user has already unsubscribed from the group or the
// groups is already deleted then skip the article
IResource server = new NewsgroupResource(groupRes).Server;
if (server == null)
{
return;
}
// is article deleted?
if (NewsArticleHelper.IsArticleDeleted(articleId))
{
return;
}
IResource article;
IContact sender;
bool mySelf;
bool newArticle;
string charset = new ServerResource(server).Charset;
article = Core.ResourceStore.FindUniqueResource(
NntpPlugin._newsArticle, NntpPlugin._propArticleId, articleId);
if (article != null)
{
article.BeginUpdate();
newArticle = false;
}
else
{
article = Core.ResourceStore.BeginNewResource(NntpPlugin._newsArticle);
newArticle = true;
}
article.SetProp(NntpPlugin._propHasNoBody, true);
NewsArticleHelper.SetArticleNumber(article, groupRes, headers[0]);
DateTime date = ParseDate(article, headers[3]);
string from = headers[2];
article.SetProp(NntpPlugin._propRawFrom, from);
mySelf = ParseFrom(article, TranslateHeader(charset, from), out sender);
string subject = headers[1];
article.SetProp(NntpPlugin._propRawSubject, subject);
article.SetProp(Core.Props.Subject, TranslateHeader(charset, subject));
UpdateLastCorrespondDate(sender, date);
ParseMessageId(article, articleId, articleId);
string references = headers[5];
if (references.Length > 0)
{
ParseReferences(article, references);
}
article.AddLink(NntpPlugin._propTo, groupRes);
if (newArticle)
{
article.SetProp(NntpPlugin._propIsUnread, true);
IResourceList categories = Core.CategoryManager.GetResourceCategories(groupRes);
foreach (IResource category in categories)
{
Core.CategoryManager.AddResourceCategory(article, category);
}
Core.FilterEngine.ExecRules(StandardEvents.ResourceReceived, article);
CleanLocalArticle(articleId, article);
}
article.EndUpdate();
if (mySelf && new ServerResource(server).MarkFromMeAsRead)
{
article.BeginUpdate();
article.DeleteProp(NntpPlugin._propIsUnread);
article.EndUpdate();
}
Core.TextIndexManager.QueryIndexing(article.Id);
}
