Example #1
0
 /// <summary>
 /// Sets the functioning mode of RSS feeds for the specified wiki.
 /// </summary>
 /// <param name="wiki">The wiki.</param>
 /// <param name="rssFeedMode">The RSS feed mode.</param>
 public static void SetRssFeedsMode(string wiki, RssFeedsMode rssFeedMode)
 {
     GetProvider(wiki).SetSetting("RssFeedsMode", rssFeedMode.ToString());
 }
Example #2
0
        protected void Page_Load(object sender, EventArgs e)
        {
            rssFeedsMode = Settings.RssFeedsMode;
            if (rssFeedsMode == RssFeedsMode.Disabled)
            {
                Response.Clear();
                Response.StatusCode = 404;
                Response.End();
                return;
            }

            string currentUsername = SessionFacade.GetCurrentUsername();

            string[] currentGroups = SessionFacade.GetCurrentGroupNames();

            currentNamespace = DetectNamespace();
            if (string.IsNullOrEmpty(currentNamespace))
            {
                currentNamespace = null;
            }

            if (SessionFacade.LoginKey == null)
            {
                // Look for username/password in the query string
                if (Request["Username"] != null && Request["Password"] != null)
                {
                    // Try to authenticate
                    UserInfo u = Users.FindUser(Request["Username"]);
                    if (u != null)
                    {
                        // Very "dirty" way - pages should not access Providers
                        if (u.Provider.TestAccount(u, Request["Password"]))
                        {
                            // Valid account
                            currentUsername = Request["Username"];
                            currentGroups   = Users.FindUser(currentUsername).Groups;
                        }
                    }
                    else
                    {
                        // Check for built-in admin account
                        if (Request["Username"].Equals("admin") && Request["Password"].Equals(Settings.MasterPassword))
                        {
                            currentUsername = "******";
                            currentGroups   = new string[] { Settings.AdministratorsGroup };
                        }
                    }
                }
            }

            Response.ClearContent();
            Response.ContentType     = "text/xml;charset=UTF-8";
            Response.ContentEncoding = System.Text.UTF8Encoding.UTF8;

            if (Request["Page"] != null)
            {
                PageInfo page = Pages.FindPage(Request["Page"]);
                if (page == null)
                {
                    return;
                }

                PageContent content = Content.GetPageContent(page, true);
                if (Request["Discuss"] == null)
                {
                    // Check permission for the page
                    bool canReadPage = AuthChecker.CheckActionForPage(page, Actions.ForPages.ReadPage, currentUsername, currentGroups);
                    if (!canReadPage)
                    {
                        Response.StatusCode = 401;
                        return;
                    }

                    // Start an XML writer for the output stream
                    using (XmlWriter rss = XmlWriter.Create(Response.OutputStream)) {
                        // Build an RSS header
                        BuildRssHeader(rss);

                        // Build the channel element
                        BuildChannelHead(rss, Settings.WikiTitle + " - " + Formatter.StripHtml(FormattingPipeline.PrepareTitle(content.Title, false, FormattingContext.PageContent, page)),
                                         Settings.MainUrl + page.FullName + Settings.PageExtension,
                                         Settings.MainUrl + UrlTools.BuildUrl("RSS.aspx?Page=", page.FullName),
                                         Formatter.StripHtml(content.Title) + " - " + Properties.Messages.PageUpdates);

                        // Write the item element
                        rss.WriteStartElement("item");
                        rss.WriteStartElement("title");
                        rss.WriteCData(Formatter.StripHtml(FormattingPipeline.PrepareTitle(content.Title, false, FormattingContext.PageContent, page)));
                        rss.WriteEndElement();
                        rss.WriteElementString("link", Settings.MainUrl + page.FullName + Settings.PageExtension);

                        UserInfo user     = Users.FindUser(content.User);
                        string   username = user != null?Users.GetDisplayName(user) : content.User;

                        // Create the description tag
                        rss.WriteStartElement("description");
                        if (rssFeedsMode == RssFeedsMode.Summary)
                        {
                            rss.WriteCData(Formatter.StripHtml(content.Title) + ": " + Properties.Messages.ThePageHasBeenUpdatedBy + " " +
                                           username + (content.Comment.Length > 0 ? ".<br />" + content.Comment : "."));
                        }
                        else
                        {
                            rss.WriteCData(Content.GetFormattedPageContent(page, false));
                        }
                        rss.WriteEndElement();

                        // Write the remaining elements
                        rss.WriteElementString("author", username);
                        rss.WriteElementString("pubDate", content.LastModified.ToUniversalTime().ToString("R"));
                        rss.WriteStartElement("guid");
                        rss.WriteAttributeString("isPermaLink", "false");
                        rss.WriteString(GetGuid(page.FullName, content.LastModified));
                        rss.WriteEndElement();

                        // Complete the item element
                        CompleteCurrentElement(rss);

                        // Complete the channel element
                        CompleteCurrentElement(rss);

                        // Complete the rss element
                        CompleteCurrentElement(rss);

                        // Finish off
                        rss.Flush();
                        rss.Close();
                    }
                }
                else
                {
                    // Check permission for the discussion
                    bool canReadDiscussion = AuthChecker.CheckActionForPage(page, Actions.ForPages.ReadDiscussion, currentUsername, currentGroups);
                    if (!canReadDiscussion)
                    {
                        Response.StatusCode = 401;
                        return;
                    }

                    List <Message> messages = new List <Message>(Pages.GetPageMessages(page));
                    // Un-tree Messages
                    messages = UnTreeMessages(messages);
                    // Sort from newer to older
                    messages.Sort(new MessageDateTimeComparer(true));

                    // Start an XML writer for the output stream
                    using (XmlWriter rss = XmlWriter.Create(Response.OutputStream)) {
                        // Build an RSS header
                        BuildRssHeader(rss);

                        // Build the channel element
                        BuildChannelHead(rss, Settings.WikiTitle + " - " + Formatter.StripHtml(FormattingPipeline.PrepareTitle(content.Title, false, FormattingContext.PageContent, page)) + " - Discussion Updates",
                                         Settings.MainUrl + page.FullName + Settings.PageExtension + "?Discuss=1",
                                         Settings.MainUrl + UrlTools.BuildUrl("RSS.aspx?Page=", page.FullName, "&Discuss=1"),
                                         Settings.WikiTitle + " - " + Formatter.StripHtml(FormattingPipeline.PrepareTitle(content.Title, false, FormattingContext.PageContent, page)) + " - Discussion Updates");

                        for (int i = 0; i < messages.Count; i++)
                        {
                            // Write the item element
                            rss.WriteStartElement("item");
                            rss.WriteStartElement("title");
                            rss.WriteCData(Formatter.StripHtml(FormattingPipeline.PrepareTitle(messages[i].Subject, false, FormattingContext.MessageBody, page)));
                            rss.WriteEndElement();
                            rss.WriteElementString("link", Settings.MainUrl + page.FullName + Settings.PageExtension + "?Discuss=1");

                            UserInfo user     = Users.FindUser(messages[i].Username);
                            string   username = user != null?Users.GetDisplayName(user) : messages[i].Username;

                            // Create the description tag
                            rss.WriteStartElement("description");
                            if (rssFeedsMode == RssFeedsMode.Summary)
                            {
                                rss.WriteCData(Properties.Messages.AMessageHasBeenPostedBy.Replace("##SUBJECT##", messages[i].Subject) + " " + username + ".");
                            }
                            else
                            {
                                rss.WriteCData(FormattingPipeline.FormatWithPhase3(FormattingPipeline.FormatWithPhase1And2(messages[i].Body, false, FormattingContext.MessageBody, page), FormattingContext.MessageBody, page));
                            }
                            rss.WriteEndElement();

                            // Write the remaining elements
                            rss.WriteElementString("author", username);
                            rss.WriteElementString("pubDate", messages[i].DateTime.ToUniversalTime().ToString("R"));
                            rss.WriteStartElement("guid");
                            rss.WriteAttributeString("isPermaLink", "false");
                            rss.WriteString(GetGuid(page.FullName + "-" + messages[i].ID, messages[i].DateTime));
                            rss.WriteEndElement();

                            // Complete the item element
                            CompleteCurrentElement(rss);
                        }

                        // Complete the channel element
                        CompleteCurrentElement(rss);

                        // Complete the rss element
                        CompleteCurrentElement(rss);

                        // Finish off
                        rss.Flush();
                        rss.Close();
                    }
                }
            }
            else
            {
                if (Request["Discuss"] == null)
                {
                    // All page updates

                    // Start an XML writer for the output stream
                    using (XmlWriter rss = XmlWriter.Create(Response.OutputStream)) {
                        // Build an RSS header
                        BuildRssHeader(rss);

                        bool   useCat = false;
                        string cat    = "";
                        if (Request["Category"] != null)
                        {
                            useCat = true;
                            cat    = Request["Category"];
                        }

                        // Build the channel element
                        BuildChannelHead(rss, Settings.WikiTitle + " - " + Properties.Messages.PageUpdates,
                                         Settings.MainUrl,
                                         Settings.MainUrl + UrlTools.BuildUrl("RSS.aspx", (useCat ? ("?Category=" + cat) : "")),
                                         Properties.Messages.RecentPageUpdates);

                        RecentChange[] ch = RecentChanges.GetAllChanges();
                        Array.Reverse(ch);
                        for (int i = 0; i < ch.Length; i++)
                        {
                            // Suppress this entry if we've already reported this page (so we don't create duplicate entries in the feed page)
                            bool duplicateFound = false;
                            for (int j = 0; j < i; j++)
                            {
                                if (ch[j].Page == ch[i].Page)
                                {
                                    duplicateFound = true;
                                    break;
                                }
                            }
                            if (duplicateFound)
                            {
                                continue;
                            }

                            // Skip message-related entries
                            if (!IsPageChange(ch[i].Change))
                            {
                                continue;
                            }

                            PageInfo p = Pages.FindPage(ch[i].Page);
                            if (p != null)
                            {
                                // Check permissions for every page
                                bool canReadThisPage = AuthChecker.CheckActionForPage(p, Actions.ForPages.ReadPage, currentUsername, currentGroups);
                                if (!canReadThisPage)
                                {
                                    continue;
                                }

                                if (useCat)
                                {
                                    CategoryInfo[] infos = Pages.GetCategoriesForPage(p);
                                    if (infos.Length == 0 && cat != "-")
                                    {
                                        continue;
                                    }
                                    if (infos.Length != 0)
                                    {
                                        bool found = false;
                                        for (int k = 0; k < infos.Length; k++)
                                        {
                                            if (infos[k].FullName == cat)
                                            {
                                                found = true;
                                                break;
                                            }
                                        }
                                        if (!found)
                                        {
                                            continue;
                                        }
                                    }
                                }
                            }

                            // Check namespace
                            if (p != null && NameTools.GetNamespace(p.FullName) != currentNamespace)
                            {
                                continue;
                            }

                            // Skip deleted pages as their category binding is unknown
                            if (p == null && useCat)
                            {
                                continue;
                            }

                            // Write the item element
                            rss.WriteStartElement("item");
                            rss.WriteStartElement("title");
                            rss.WriteCData(Formatter.StripHtml(FormattingPipeline.PrepareTitle(ch[i].Title, false, FormattingContext.PageContent, p)));
                            rss.WriteEndElement();

                            if (ch[i].Change != Change.PageDeleted && p != null)
                            {
                                rss.WriteElementString("link", Settings.MainUrl + ch[i].Page + Settings.PageExtension);
                            }
                            else
                            {
                                rss.WriteElementString("link", Settings.MainUrl);
                            }

                            UserInfo user     = Users.FindUser(ch[i].User);
                            string   username = user != null?Users.GetDisplayName(user) : ch[i].User;

                            rss.WriteElementString("author", username);

                            // Create the description tag
                            StringBuilder sb = new StringBuilder();
                            if (rssFeedsMode == RssFeedsMode.Summary || p == null)
                            {
                                switch (ch[i].Change)
                                {
                                case Change.PageUpdated:
                                    sb.Append(Properties.Messages.ThePageHasBeenUpdatedBy);
                                    break;

                                case Change.PageDeleted:
                                    sb.Append(Properties.Messages.ThePageHasBeenDeletedBy);
                                    break;

                                case Change.PageRenamed:
                                    sb.Append(Properties.Messages.ThePageHasBeenRenamedBy);
                                    break;

                                case Change.PageRolledBack:
                                    sb.Append(Properties.Messages.ThePageHasBeenRolledBackBy);
                                    break;
                                }
                                sb.Append(" " + username + (ch[i].Description.Length > 0 ? ".<br />" + ch[i].Description : "."));
                            }
                            else
                            {
                                // p != null
                                sb.Append(Content.GetFormattedPageContent(p, false));
                            }
                            rss.WriteStartElement("description");
                            rss.WriteCData(sb.ToString());
                            rss.WriteEndElement();

                            // Write the remaining elements
                            rss.WriteElementString("pubDate", ch[i].DateTime.ToUniversalTime().ToString("R"));
                            rss.WriteStartElement("guid");
                            rss.WriteAttributeString("isPermaLink", "false");
                            rss.WriteString(GetGuid(ch[i].Page, ch[i].DateTime));
                            rss.WriteEndElement();

                            // Complete the item element
                            rss.WriteEndElement();
                        }

                        // Complete the channel element
                        CompleteCurrentElement(rss);

                        // Complete the rss element
                        CompleteCurrentElement(rss);

                        // Finish off
                        rss.Flush();
                        rss.Close();
                    }
                }
                else
                {
                    // All discussion updates

                    // Start an XML writer for the output stream
                    using (XmlWriter rss = XmlWriter.Create(Response.OutputStream)) {
                        // Build an RSS header
                        BuildRssHeader(rss);

                        bool   useCat = false;
                        string cat    = "";
                        if (Request["Category"] != null)
                        {
                            useCat = true;
                            cat    = Request["Category"];
                        }

                        // Build the channel element
                        BuildChannelHead(rss, Settings.WikiTitle + " - " + Properties.Messages.DiscussionUpdates,
                                         Settings.MainUrl,
                                         Settings.MainUrl + UrlTools.BuildUrl("RSS.aspx", (useCat ? ("?Category=" + cat) : "")),
                                         Properties.Messages.RecentDiscussionUpdates);

                        RecentChange[] ch = RecentChanges.GetAllChanges();
                        Array.Reverse(ch);
                        for (int i = 0; i < ch.Length; i++)
                        {
                            // Skip page-related entries
                            if (!IsMessageChange(ch[i].Change))
                            {
                                continue;
                            }

                            PageInfo p = Pages.FindPage(ch[i].Page);
                            if (p != null)
                            {
                                // Check permissions for every page
                                bool canReadThisPageDiscussion = AuthChecker.CheckActionForPage(p, Actions.ForPages.ReadDiscussion, currentUsername, currentGroups);
                                if (!canReadThisPageDiscussion)
                                {
                                    continue;
                                }

                                if (useCat)
                                {
                                    CategoryInfo[] infos = Pages.GetCategoriesForPage(p);
                                    if (infos.Length == 0 && cat != "-")
                                    {
                                        continue;
                                    }
                                    if (infos.Length != 0)
                                    {
                                        bool found = false;
                                        for (int k = 0; k < infos.Length; k++)
                                        {
                                            if (infos[k].FullName == cat)
                                            {
                                                found = true;
                                                break;
                                            }
                                        }
                                        if (!found)
                                        {
                                            continue;
                                        }
                                    }
                                }

                                // Check namespace
                                if (NameTools.GetNamespace(p.FullName) != currentNamespace)
                                {
                                    continue;
                                }

                                // Write the item element
                                rss.WriteStartElement("item");
                                rss.WriteStartElement("title");
                                rss.WriteCData(Properties.Messages.Discussion + ": " + Formatter.StripHtml(FormattingPipeline.PrepareTitle(ch[i].Title, false, FormattingContext.PageContent, p)));
                                rss.WriteEndElement();

                                string id = Tools.GetMessageIdForAnchor(ch[i].DateTime);
                                if (ch[i].Change != Change.MessageDeleted)
                                {
                                    rss.WriteElementString("link", Settings.MainUrl + ch[i].Page + Settings.PageExtension + "?Discuss=1#" + id);
                                }
                                else
                                {
                                    rss.WriteElementString("link", Settings.MainUrl + ch[i].Page + Settings.PageExtension + "?Discuss=1");
                                }

                                string messageContent = FindMessageContent(ch[i].Page, id);

                                UserInfo user     = Users.FindUser(ch[i].User);
                                string   username = user != null?Users.GetDisplayName(user) : ch[i].User;

                                // Create the description tag
                                StringBuilder sb = new StringBuilder();
                                if (rssFeedsMode == RssFeedsMode.Summary || messageContent == null)
                                {
                                    switch (ch[i].Change)
                                    {
                                    case Change.MessagePosted:
                                        sb.Append(Properties.Messages.AMessageHasBeenPostedBy.Replace("##SUBJECT##", ch[i].MessageSubject));
                                        break;

                                    case Change.MessageEdited:
                                        sb.Append(Properties.Messages.AMessageHasBeenEditedBy.Replace("##SUBJECT##", ch[i].MessageSubject));
                                        break;

                                    case Change.MessageDeleted:
                                        sb.Append(Properties.Messages.AMessageHasBeenDeletedBy.Replace("##SUBJECT##", ch[i].MessageSubject));
                                        break;
                                    }
                                    sb.Append(" " + username + (ch[i].Description.Length > 0 ? ".<br />" + ch[i].Description : "."));
                                }
                                else
                                {
                                    sb.Append(FormattingPipeline.FormatWithPhase3(FormattingPipeline.FormatWithPhase1And2(messageContent, false, FormattingContext.MessageBody, null), FormattingContext.MessageBody, null));
                                }
                                rss.WriteStartElement("description");
                                rss.WriteCData(sb.ToString());
                                rss.WriteEndElement();

                                // Write the remaining elements
                                rss.WriteElementString("author", username);
                                rss.WriteElementString("pubDate", ch[i].DateTime.ToUniversalTime().ToString("R"));
                                rss.WriteStartElement("guid");
                                rss.WriteAttributeString("isPermaLink", "false");
                                rss.WriteString(GetGuid(ch[i].Page, ch[i].DateTime));
                                rss.WriteEndElement();

                                // Complete the item element
                                rss.WriteEndElement();
                            }
                        }

                        // Complete the channel element
                        CompleteCurrentElement(rss);

                        // Complete the rss element
                        CompleteCurrentElement(rss);

                        // Finish off
                        rss.Flush();
                        rss.Close();
                    }
                }
            }
        }
Example #3
0
        protected void Page_Load(object sender, EventArgs e)
        {
            rssFeedsMode = Settings.RssFeedsMode;
            if(rssFeedsMode == RssFeedsMode.Disabled) {
                Response.Clear();
                Response.StatusCode = 404;
                Response.End();
                return;
            }

            string currentUsername = SessionFacade.GetCurrentUsername();
            string[] currentGroups = SessionFacade.GetCurrentGroupNames();

            currentNamespace = DetectNamespace();
            if(string.IsNullOrEmpty(currentNamespace)) currentNamespace = null;

            if(SessionFacade.LoginKey == null) {
                // Look for username/password in the query string
                if(Request["Username"] != null && Request["Password"] != null) {
                    // Try to authenticate
                    UserInfo u = Users.FindUser(Request["Username"]);
                    if(u != null) {
                        // Very "dirty" way - pages should not access Providers
                        if(u.Provider.TestAccount(u, Request["Password"])) {
                            // Valid account
                            currentUsername = Request["Username"];
                            currentGroups = Users.FindUser(currentUsername).Groups;
                        }
                    }
                    else {
                        // Check for built-in admin account
                        if(Request["Username"].Equals("admin") && Request["Password"].Equals(Settings.MasterPassword)) {
                            currentUsername = "******";
                            currentGroups = new string[] { Settings.AdministratorsGroup };
                        }
                    }
                }
            }

            Response.ClearContent();
            Response.ContentType = "text/xml;charset=UTF-8";
            Response.ContentEncoding = System.Text.UTF8Encoding.UTF8;

            if(Request["Page"] != null) {
                PageInfo page = Pages.FindPage(Request["Page"]);
                if(page == null) return;

                PageContent content = Content.GetPageContent(page, true);
                if(Request["Discuss"] == null) {
                    // Check permission for the page
                    bool canReadPage = AuthChecker.CheckActionForPage(page, Actions.ForPages.ReadPage, currentUsername, currentGroups);
                    if(!canReadPage) {
                        Response.StatusCode = 401;
                        return;
                    }

                    // Start an XML writer for the output stream
                    using(XmlWriter rss = XmlWriter.Create(Response.OutputStream)) {
                        // Build an RSS header
                        BuildRssHeader(rss);

                        // Build the channel element
                        BuildChannelHead(rss, Settings.WikiTitle + " - " + Formatter.StripHtml(FormattingPipeline.PrepareTitle(content.Title, false, FormattingContext.PageContent, page)),
                            Settings.MainUrl + page.FullName + Settings.PageExtension,
                            Settings.MainUrl + UrlTools.BuildUrl("RSS.aspx?Page=", page.FullName),
                            Formatter.StripHtml(content.Title) + " - " + Properties.Messages.PageUpdates);

                        // Write the item element
                        rss.WriteStartElement("item");
                        rss.WriteStartElement("title");
                        rss.WriteCData(Formatter.StripHtml(FormattingPipeline.PrepareTitle(content.Title, false, FormattingContext.PageContent, page)));
                        rss.WriteEndElement();
                        rss.WriteElementString("link", Settings.MainUrl + page.FullName + Settings.PageExtension);

                        UserInfo user = Users.FindUser(content.User);
                        string username = user != null ? Users.GetDisplayName(user) : content.User;

                        // Create the description tag
                        rss.WriteStartElement("description");
                        if(rssFeedsMode == RssFeedsMode.Summary) {
                            rss.WriteCData(Formatter.StripHtml(content.Title) + ": " + Properties.Messages.ThePageHasBeenUpdatedBy + " " +
                                username + (content.Comment.Length > 0 ? ".<br />" + content.Comment : "."));
                        }
                        else {
                            rss.WriteCData(Content.GetFormattedPageContent(page, false));
                        }
                        rss.WriteEndElement();

                        // Write the remaining elements
                        rss.WriteElementString("author", username);
                        rss.WriteElementString("pubDate", content.LastModified.ToUniversalTime().ToString("R"));
                        rss.WriteStartElement("guid");
                        rss.WriteAttributeString("isPermaLink", "false");
                        rss.WriteString(GetGuid(page.FullName, content.LastModified));
                        rss.WriteEndElement();

                        // Complete the item element
                        CompleteCurrentElement(rss);

                        // Complete the channel element
                        CompleteCurrentElement(rss);

                        // Complete the rss element
                        CompleteCurrentElement(rss);

                        // Finish off
                        rss.Flush();
                        rss.Close();
                    }
                }
                else {
                    // Check permission for the discussion
                    bool canReadDiscussion = AuthChecker.CheckActionForPage(page, Actions.ForPages.ReadDiscussion, currentUsername, currentGroups);
                    if(!canReadDiscussion) {
                        Response.StatusCode = 401;
                        return;
                    }

                    List<Message> messages = new List<Message>(Pages.GetPageMessages(page));
                    // Un-tree Messages
                    messages = UnTreeMessages(messages);
                    // Sort from newer to older
                    messages.Sort(new MessageDateTimeComparer(true));

                    // Start an XML writer for the output stream
                    using(XmlWriter rss = XmlWriter.Create(Response.OutputStream)) {
                        // Build an RSS header
                        BuildRssHeader(rss);

                        // Build the channel element
                        BuildChannelHead(rss, Settings.WikiTitle + " - " + Formatter.StripHtml(FormattingPipeline.PrepareTitle(content.Title, false, FormattingContext.PageContent, page)) + " - Discussion Updates",
                            Settings.MainUrl + page.FullName + Settings.PageExtension + "?Discuss=1",
                            Settings.MainUrl + UrlTools.BuildUrl("RSS.aspx?Page=", page.FullName, "&Discuss=1"),
                            Settings.WikiTitle + " - " + Formatter.StripHtml(FormattingPipeline.PrepareTitle(content.Title, false, FormattingContext.PageContent, page)) + " - Discussion Updates");

                        for(int i = 0; i < messages.Count; i++) {
                            // Write the item element
                            rss.WriteStartElement("item");
                            rss.WriteStartElement("title");
                            rss.WriteCData(Formatter.StripHtml(FormattingPipeline.PrepareTitle(messages[i].Subject, false, FormattingContext.MessageBody, page)));
                            rss.WriteEndElement();
                            rss.WriteElementString("link", Settings.MainUrl + page.FullName + Settings.PageExtension + "?Discuss=1");

                            UserInfo user = Users.FindUser(messages[i].Username);
                            string username = user != null ? Users.GetDisplayName(user) : messages[i].Username;

                            // Create the description tag
                            rss.WriteStartElement("description");
                            if(rssFeedsMode == RssFeedsMode.Summary) {
                                rss.WriteCData(Properties.Messages.AMessageHasBeenPostedBy.Replace("##SUBJECT##", messages[i].Subject) + " " + username + ".");
                            }
                            else {
                                rss.WriteCData(FormattingPipeline.FormatWithPhase3(FormattingPipeline.FormatWithPhase1And2(messages[i].Body, false, FormattingContext.MessageBody, page), FormattingContext.MessageBody, page));
                            }
                            rss.WriteEndElement();

                            // Write the remaining elements
                            rss.WriteElementString("author", username);
                            rss.WriteElementString("pubDate", messages[i].DateTime.ToUniversalTime().ToString("R"));
                            rss.WriteStartElement("guid");
                            rss.WriteAttributeString("isPermaLink", "false");
                            rss.WriteString(GetGuid(page.FullName + "-" + messages[i].ID.ToString(), messages[i].DateTime));
                            rss.WriteEndElement();

                            // Complete the item element
                            CompleteCurrentElement(rss);
                        }

                        // Complete the channel element
                        CompleteCurrentElement(rss);

                        // Complete the rss element
                        CompleteCurrentElement(rss);

                        // Finish off
                        rss.Flush();
                        rss.Close();
                    }
                }
            }
            else {
                if(Request["Discuss"] == null) {
                    // All page updates

                    // Start an XML writer for the output stream
                    using(XmlWriter rss = XmlWriter.Create(Response.OutputStream)) {

                        // Build an RSS header
                        BuildRssHeader(rss);

                        bool useCat = false;
                        string cat = "";
                        if(Request["Category"] != null) {
                            useCat = true;
                            cat = Request["Category"];
                        }

                        // Build the channel element
                        BuildChannelHead(rss, Settings.WikiTitle + " - " + Properties.Messages.PageUpdates,
                            Settings.MainUrl,
                            Settings.MainUrl + UrlTools.BuildUrl("RSS.aspx", (useCat ? ("?Category=" + cat) : "")),
                            Properties.Messages.RecentPageUpdates);

                        RecentChange[] ch = RecentChanges.GetAllChanges();
                        Array.Reverse(ch);
                        for(int i = 0; i < ch.Length; i++) {

                            // Suppress this entry if we've already reported this page (so we don't create duplicate entries in the feed page)
                            bool duplicateFound = false;
                            for(int j = 0; j < i; j++) {
                                if(ch[j].Page == ch[i].Page) {
                                    duplicateFound = true;
                                    break;
                                }
                            }
                            if(duplicateFound) continue;

                            // Skip message-related entries
                            if(!IsPageChange(ch[i].Change)) continue;

                            PageInfo p = Pages.FindPage(ch[i].Page);
                            if(p != null) {
                                // Check permissions for every page
                                bool canReadThisPage = AuthChecker.CheckActionForPage(p, Actions.ForPages.ReadPage, currentUsername, currentGroups);
                                if(!canReadThisPage) continue;

                                if(useCat) {
                                    CategoryInfo[] infos = Pages.GetCategoriesForPage(p);
                                    if(infos.Length == 0 && cat != "-") continue;
                                    else if(infos.Length != 0) {
                                        bool found = false;
                                        for(int k = 0; k < infos.Length; k++) {
                                            if(infos[k].FullName == cat) {
                                                found = true;
                                                break;
                                            }
                                        }
                                        if(!found) continue;
                                    }
                                }
                            }

                            // Check namespace
                            if(p != null && NameTools.GetNamespace(p.FullName) != currentNamespace) continue;

                            // Skip deleted pages as their category binding is unknown
                            if(p == null && useCat) continue;

                            // Write the item element
                            rss.WriteStartElement("item");
                            rss.WriteStartElement("title");
                            rss.WriteCData(Formatter.StripHtml(FormattingPipeline.PrepareTitle(ch[i].Title, false, FormattingContext.PageContent, p)));
                            rss.WriteEndElement();

                            if(ch[i].Change != Change.PageDeleted && p != null) {
                                rss.WriteElementString("link", Settings.MainUrl + ch[i].Page + Settings.PageExtension);
                            }
                            else rss.WriteElementString("link", Settings.MainUrl);

                            UserInfo user = Users.FindUser(ch[i].User);
                            string username = user != null ? Users.GetDisplayName(user) : ch[i].User;

                            rss.WriteElementString("author", username);

                            // Create the description tag
                            StringBuilder sb = new StringBuilder();
                            if(rssFeedsMode == RssFeedsMode.Summary || p == null) {
                                switch(ch[i].Change) {
                                    case Change.PageUpdated:
                                        sb.Append(Properties.Messages.ThePageHasBeenUpdatedBy);
                                        break;
                                    case Change.PageDeleted:
                                        sb.Append(Properties.Messages.ThePageHasBeenDeletedBy);
                                        break;
                                    case Change.PageRenamed:
                                        sb.Append(Properties.Messages.ThePageHasBeenRenamedBy);
                                        break;
                                    case Change.PageRolledBack:
                                        sb.Append(Properties.Messages.ThePageHasBeenRolledBackBy);
                                        break;
                                }
                                sb.Append(" " + username + (ch[i].Description.Length > 0 ? ".<br />" + ch[i].Description : "."));
                            }
                            else {
                                // p != null
                                sb.Append(Content.GetFormattedPageContent(p, false));
                            }
                            rss.WriteStartElement("description");
                            rss.WriteCData(sb.ToString());
                            rss.WriteEndElement();

                            // Write the remaining elements
                            rss.WriteElementString("pubDate", ch[i].DateTime.ToUniversalTime().ToString("R"));
                            rss.WriteStartElement("guid");
                            rss.WriteAttributeString("isPermaLink", "false");
                            rss.WriteString(GetGuid(ch[i].Page, ch[i].DateTime));
                            rss.WriteEndElement();

                            // Complete the item element
                            rss.WriteEndElement();
                        }

                        // Complete the channel element
                        CompleteCurrentElement(rss);

                        // Complete the rss element
                        CompleteCurrentElement(rss);

                        // Finish off
                        rss.Flush();
                        rss.Close();
                    }
                }
                else {
                    // All discussion updates

                    // Start an XML writer for the output stream
                    using(XmlWriter rss = XmlWriter.Create(Response.OutputStream)) {

                        // Build an RSS header
                        BuildRssHeader(rss);

                        bool useCat = false;
                        string cat = "";
                        if(Request["Category"] != null) {
                            useCat = true;
                            cat = Request["Category"];
                        }

                        // Build the channel element
                        BuildChannelHead(rss, Settings.WikiTitle + " - " + Properties.Messages.DiscussionUpdates,
                            Settings.MainUrl,
                            Settings.MainUrl + UrlTools.BuildUrl("RSS.aspx", (useCat ? ("?Category=" + cat) : "")),
                            Properties.Messages.RecentDiscussionUpdates);

                        RecentChange[] ch = RecentChanges.GetAllChanges();
                        Array.Reverse(ch);
                        for(int i = 0; i < ch.Length; i++) {
                            // Skip page-related entries
                            if(!IsMessageChange(ch[i].Change)) continue;

                            PageInfo p = Pages.FindPage(ch[i].Page);
                            if(p != null) {
                                // Check permissions for every page
                                bool canReadThisPageDiscussion = AuthChecker.CheckActionForPage(p, Actions.ForPages.ReadDiscussion, currentUsername, currentGroups);
                                if(!canReadThisPageDiscussion) continue;

                                if(useCat) {
                                    CategoryInfo[] infos = Pages.GetCategoriesForPage(p);
                                    if(infos.Length == 0 && cat != "-") continue;
                                    else if(infos.Length != 0) {
                                        bool found = false;
                                        for(int k = 0; k < infos.Length; k++) {
                                            if(infos[k].FullName == cat) {
                                                found = true;
                                                break;
                                            }
                                        }
                                        if(!found) continue;
                                    }
                                }

                                // Check namespace
                                if(NameTools.GetNamespace(p.FullName) != currentNamespace) continue;

                                // Write the item element
                                rss.WriteStartElement("item");
                                rss.WriteStartElement("title");
                                rss.WriteCData(Properties.Messages.Discussion + ": " + Formatter.StripHtml(FormattingPipeline.PrepareTitle(ch[i].Title, false, FormattingContext.PageContent, p)));
                                rss.WriteEndElement();

                                string id = Tools.GetMessageIdForAnchor(ch[i].DateTime);
                                if(ch[i].Change != Change.MessageDeleted) {
                                    rss.WriteElementString("link", Settings.MainUrl + ch[i].Page + Settings.PageExtension + "?Discuss=1#" + id);
                                }
                                else rss.WriteElementString("link", Settings.MainUrl + ch[i].Page + Settings.PageExtension + "?Discuss=1");

                                string messageContent = FindMessageContent(ch[i].Page, id);

                                UserInfo user = Users.FindUser(ch[i].User);
                                string username = user != null ? Users.GetDisplayName(user) : ch[i].User;

                                // Create the description tag
                                StringBuilder sb = new StringBuilder();
                                if(rssFeedsMode == RssFeedsMode.Summary || messageContent == null) {
                                    switch(ch[i].Change) {
                                        case Change.MessagePosted:
                                            sb.Append(Properties.Messages.AMessageHasBeenPostedBy.Replace("##SUBJECT##", ch[i].MessageSubject));
                                            break;
                                        case Change.MessageEdited:
                                            sb.Append(Properties.Messages.AMessageHasBeenEditedBy.Replace("##SUBJECT##", ch[i].MessageSubject));
                                            break;
                                        case Change.MessageDeleted:
                                            sb.Append(Properties.Messages.AMessageHasBeenDeletedBy.Replace("##SUBJECT##", ch[i].MessageSubject));
                                            break;
                                    }
                                    sb.Append(" " + username + (ch[i].Description.Length > 0 ? ".<br />" + ch[i].Description : "."));
                                }
                                else {
                                    sb.Append(FormattingPipeline.FormatWithPhase3(FormattingPipeline.FormatWithPhase1And2(messageContent, false, FormattingContext.MessageBody, null), FormattingContext.MessageBody, null));
                                }
                                rss.WriteStartElement("description");
                                rss.WriteCData(sb.ToString());
                                rss.WriteEndElement();

                                // Write the remaining elements
                                rss.WriteElementString("author", username);
                                rss.WriteElementString("pubDate", ch[i].DateTime.ToUniversalTime().ToString("R"));
                                rss.WriteStartElement("guid");
                                rss.WriteAttributeString("isPermaLink", "false");
                                rss.WriteString(GetGuid(ch[i].Page, ch[i].DateTime));
                                rss.WriteEndElement();

                                // Complete the item element
                                rss.WriteEndElement();
                            }
                        }

                        // Complete the channel element
                        CompleteCurrentElement(rss);

                        // Complete the rss element
                        CompleteCurrentElement(rss);

                        // Finish off
                        rss.Flush();
                        rss.Close();
                    }
                }
            }
        }