/// <summary> /// Creates protocol unit for posting article to server /// </summary> /// <param name="draftArticle"></param> /// <param name="server"></param> /// <param name="finishedMethod">can be null</param> public NntpPostArticleUnit(IResource draftArticle, IResource server, AsciiProtocolUnitDelegate finishedMethod, bool invokedByUser) { _draftArticle = draftArticle; _server = new ServerResource(server); _invokedByUser = invokedByUser; _error = "Failed to connect, posting abandoned."; if (finishedMethod != null) { Finished += finishedMethod; } }
private static void ParseNewsgroups(IResource article, IResource groupRes, ServerResource serverRes, string newsgroups) { string[] groups = newsgroups.Split(','); foreach (string group in groups) { bool groupFound = false; foreach (IResource res in serverRes.Groups) { if (groupRes != res && String.Compare(group, res.GetPropText(Core.Props.Name), true) == 0 && new NewsgroupResource(res).IsSubscribed) { article.AddLink(NntpPlugin._propTo, res); groupFound = true; break; } } if (!groupFound) { IResource fakeGroup = null; IResourceList fakeGroups = Core.ResourceStore.FindResources( NntpPlugin._newsGroup, Core.Props.Name, group); if (fakeGroups.Count == 0) { fakeGroup = Core.ResourceStore.NewResource(NntpPlugin._newsGroup); fakeGroup.SetProp(Core.Props.Name, group); } else { foreach (IResource res in fakeGroups) { if (fakeGroup == null || res.HasProp(Core.Props.Parent)) { fakeGroup = res; if (res.HasProp(Core.Props.Parent)) { break; } } } } article.AddLink(NntpPlugin._propTo, fakeGroup); } } }
public NntpDownloadGroupsUnit(IResource server, bool refresh, JobPriority priority) { Interlocked.Increment(ref NntpPlugin._deliverNewsUnitCount); _serverResource = new ServerResource(server); Core.UIManager.GetStatusWriter(typeof(NntpDownloadGroupsUnit), StatusPane.Network).ShowStatus("Downloading groups from " + _serverResource.DisplayName + "..."); _priority = priority; _nntpCmd = "list"; if (!refresh) { DateTime lastUpdated = _serverResource.LastUpdateTime; if (lastUpdated > DateTime.MinValue) { _nntpCmd = "newgroups " + ParseTools.NNTPDateString(lastUpdated); } } _count = 0; _responseChecked = false; _groupList = new ArrayList(); _groupListLock = new SpinWaitLock(); _flushGroupListDelegate = new MethodInvoker(FlushGroupList); }
public NntpConnection(ServerResource server) : base(server.Name, server.Port) { _server = server; _serverProxy = new ResourceProxy(server.Resource); this.Timeout = Timeout = Core.SettingStore.ReadInt("NNTP", "Timeout", 60) * 1000; TraceProtocol = Settings.Trace; SSL3Enabled = server.SSL3Enabled; _state = NntpConnectionState.Connecting; System.Diagnostics.Trace.WriteLine(Server + ":" + Port + ": Connecting to server..."); _serverProxy.DeletePropAsync(Core.Props.LastError); DoConnect(); if (!_server.Resource.IsDeleted) { string username = _server.LoginName; if (username.Length > 0) { DoAuthenticate(username, _server.Password); } StartUnit(Int32.MaxValue, new AsciiSendLineGetLineUnit("mode reader")); } }
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); }
/** * this function is called if article is downloaded from a group * article should be a newly created transient resource */ public static void CreateArticleByProtocolHandler(string[] lines, IResource article) { if (!article.IsTransient) { throw new ArgumentException("Article should be a newly created transient resource", "article"); } string articleId = article.GetPropText(NntpPlugin._propArticleId); if (Core.ResourceStore.FindUniqueResource( NntpPlugin._newsArticle, NntpPlugin._propArticleId, articleId) != null) { return; } PrepareLines(lines); try { IResource server = article.GetLinkProp(NntpPlugin._propTo); string charset = new ServerResource(server).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; 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)) { Subscribe2Groups(article, 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.SetProp(NntpPlugin._propIsUnread, true); 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); } finally { DisposeStringBuilders(); } }
public static void DeliverNewsFromServer(IResource server, IResource preferableGroup, bool invokedByUser, AsciiProtocolUnitDelegate finishedMethod) { Guard.NullArgument(server, "server"); ServerResource serverResource = new ServerResource(server); if (Utils.IsNetworkConnectedLight()) { NntpConnection connection = NntpConnectionPool.GetConnection(server, "background"); IResourceList groups = serverResource.Groups; if (groups.Count > 0) { /** * at first deliver news from prefered group */ if (preferableGroup != null && groups.Contains(preferableGroup)) { connection.StartUnit(Int32.MaxValue - 2, new NntpDownloadHeadersUnit(new NewsgroupResource(preferableGroup), JobPriority.AboveNormal)); if (serverResource.DownloadBodiesOnDeliver) { connection.StartUnit(Int32.MaxValue - 3, new NntpDeliverEmptyArticlesFromGroupsUnit(preferableGroup.ToResourceList(), null)); } } /** * then deliver headers of other groups */ NntpDeliverHeadersFromGroupsUnit deliverHeadersFromGroupsUnit = new NntpDeliverHeadersFromGroupsUnit(groups, preferableGroup); if (finishedMethod != null) { deliverHeadersFromGroupsUnit.Finished += finishedMethod; } int clientPriority = 0; if (invokedByUser && preferableGroup != null && groups.Contains(preferableGroup)) { clientPriority = Int32.MaxValue - 3; } connection.StartUnit(clientPriority, deliverHeadersFromGroupsUnit); /** * then download empty bodies */ if (serverResource.DownloadBodiesOnDeliver) { NntpDeliverEmptyArticlesFromGroupsUnit deliverEmptyArticlesUnit = new NntpDeliverEmptyArticlesFromGroupsUnit(groups, preferableGroup); if (finishedMethod != null) { deliverEmptyArticlesUnit.Finished += finishedMethod; } connection.StartUnit(clientPriority, deliverEmptyArticlesUnit); } } /** * finally replicate new groups */ NntpDownloadGroupsUnit groupsUnit = new NntpDownloadGroupsUnit(server, false, JobPriority.Lowest); if (finishedMethod != null) { groupsUnit.Finished += finishedMethod; } connection.StartUnit(0, groupsUnit); } /** * queue timed news delivering is necessary */ int freq = serverResource.DeliverFreq; if (freq > 0) { Core.NetworkAP.QueueJobAt( DateTime.Now.AddMinutes(freq), new ResourceDelegate(DeliverNewsFromServer), server); } }