internal static void ParseReferences(IResource article, string refValue)
{
string[] refs = refValue.Trim().Split(' ');
if (refs.Length > 0)
{
string reference = ParseTools.EscapeCaseSensitiveString(refs[refs.Length - 1]);
article.SetProp(NntpPlugin._propReferenceId, reference);
IResource parentArticle = Core.ResourceStore.FindUniqueResource(
NntpPlugin._newsArticle, NntpPlugin._propArticleId, reference);
if (parentArticle != null)
{
SetReply(article, parentArticle);
UpdateLastThreadArticleDate(article);
}
}
}
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);
}
/**
* 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();
}
}
/**
* 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();
}
}