public static RecentChangeEntry FromXml(XDoc doc)
{
var result = new RecentChangeEntry();
result.CmntContent = doc["cmnt_content"].AsText;
result.CmntDeleted = (doc["cmnt_deleted"].AsInt.GetValueOrDefault() != 0);
result.CmntId = doc["cmnt_id"].AsULong;
result.CmntMimetype = doc["cmnt_content_mimetype"].AsText;
result.CmntNumber = doc["cmnt_number"].AsInt;
result.Comment = doc["rc_comment"].AsText;
result.CurId = doc["rc_cur_id"].AsULong.GetValueOrDefault();
result.Fullname = doc["rc_full_name"].AsText;
result.Id = doc["rc_id"].AsULong.GetValueOrDefault();
result.LastOldId = doc["rc_last_oldid"].AsULong.Value;
result.MovedToNs = (NS)doc["rc_moved_to_ns"].AsInt.Value;
result.MovedToTitle = doc["rc_moved_to_title"].AsText;
result.Namespace = (NS)doc["rc_namespace"].AsInt.Value;
result.OldIsHidden = (doc["old_is_hidden"].AsInt.GetValueOrDefault() != 0);
result.PageExists = doc["rc_page_exists"].AsInt.GetValueOrDefault() != 0;
result.Revision = doc["rc_revision"].AsInt ?? 0;
result.ThisOldId = doc["rc_this_oldid"].AsULong.Value;
result.Timestamp = DbUtils.ToDateTime(doc["rc_timestamp"].AsText);
result.Title = doc["rc_title"].AsText;
result.Type = (RC)(doc["rc_type"].AsInt ?? 0);
result.Username = doc["rc_user_name"].AsText ?? string.Empty;
return(result);
}
//--- Class Methods ---
public static void AppendXml(this RecentChangeEntry change, XDoc doc)
{
doc.Start("change");
doc.Elem("rc_id", change.Id);
if (change.ExtraComments != null)
{
foreach (var comment in change.ExtraComments)
{
doc.Start("rc_comment")
.Attr("author", comment.Item1)
.Attr("fullname", comment.Item2)
.Value(comment.Item3)
.End();
}
}
else
{
doc.Elem("rc_comment", change.Comment);
}
doc.Elem("rc_cur_id", change.CurId);
doc.Elem("rc_last_oldid", change.LastOldId);
doc.Elem("rc_this_oldid", change.ThisOldId);
doc.Elem("rc_namespace", (int)change.Namespace);
doc.Elem("rc_timestamp", DbUtils.ToString(change.Timestamp));
doc.Elem("rc_title", change.Title);
doc.Elem("rc_type", (int)change.Type);
doc.Elem("rc_moved_to_ns", (int)change.MovedToNs);
doc.Elem("rc_moved_to_title", change.MovedToTitle);
if ((change.SortedAuthors != null) && (change.SortedAuthors.Count > 1))
{
foreach (var author in change.SortedAuthors)
{
doc.Elem("rc_user_name", author.Key);
doc.Elem("rc_full_name", author.Value);
}
}
else
{
doc.Elem("rc_user_name", change.Username);
doc.Elem("rc_full_name", change.Fullname);
}
doc.Elem("rc_page_exists", change.PageExists ? 1 : 0);
doc.Elem("rc_revision", change.Revision);
doc.Elem("cmnt_id", change.CmntId);
doc.Elem("cmnt_number", change.CmntNumber);
doc.Elem("cmnt_content", change.CmntContent);
doc.Elem("cmnt_content_mimetype", change.CmntMimetype);
doc.Elem("cmnt_deleted", change.CmntDeleted ? 1 : 0);
doc.Elem("old_is_hidden", change.OldIsHidden);
doc.Elem("edit_count", change.EditCount);
doc.Elem("rc_prev_revision", change.PreviousRevision);
doc.Elem("rc_summary", change.Summary);
doc.End();
}
private void AppendDiff(bool diffCacheEnabled, XDoc body, RecentChangeEntry change, RC type, Title title, IDictionary<string, XDoc> cache) {
var resources = DekiContext.Current.Resources;
ulong pageid = change.CurId;
int? after = (change.Revision > 0) ? (int?)change.Revision : null;
int? before = change.PreviousRevision;
// append edit summary, if any
body.Elem("p", change.Summary);
// append comment(s)
int count = (change.ExtraComments == null) ? (string.IsNullOrEmpty(change.Comment) ? 0 : 1) : change.ExtraComments.Count;
switch(count) {
case 0:
// nothing to do
break;
case 1:
body.Elem("p", (change.ExtraComments != null) ? change.ExtraComments[0].Item3 : change.Comment);
break;
default:
body.Start("ol");
foreach(var comment in ((IEnumerable<Tuplet<string, string, string>>)change.ExtraComments).Reverse()) {
string author = string.IsNullOrEmpty(comment.Item2) ? comment.Item1 : comment.Item2;
body.Elem("li", string.IsNullOrEmpty(author) ? comment.Item3 : string.Format("{0} ({1})", comment.Item3, author));
}
body.End();
break;
}
// check if page was modified
if(after.HasValue && before.HasValue && (after != before)) {
// check if we have a cached version of this page diff
XDoc diffXml = null;
Plug store = Storage.At("site_" + XUri.EncodeSegment(DekiContext.Current.Instance.Id), DreamContext.Current.Culture.Name, "feeds", string.Format("page_{0}", pageid), string.Format("diff_{0}-{1}.xml", before, after));
if(diffCacheEnabled) {
var v = store.Get(new Result<DreamMessage>(TimeSpan.MaxValue)).Wait();
diffXml = (v.IsSuccessful && v.HasDocument) ? v.ToDocument() : null;
if(diffXml != null) {
// TODO (steveb): this problem only exists b/c we can't determine the actual revision number that we should use for diffing (see bug 7824)
// check if either revision has been hidden since we computed the diff
var session = DbUtils.CurrentSession;
if(after.Value != change.CurrentRevision) {
OldBE afterRevision = session.Old_GetOldByRevision(pageid, (ulong)after.Value);
if((afterRevision == null) || afterRevision.IsHidden) {
diffXml = null;
}
}
if((diffXml != null) && (before.Value != change.CurrentRevision) && (before.Value > 0)) {
OldBE beforeRevision = session.Old_GetOldByRevision(pageid, (ulong)before.Value);
if((beforeRevision == null) || beforeRevision.IsHidden) {
diffXml = null;
}
}
}
}
if(diffXml == null) {
diffXml = new XDoc("diff");
// retrieve page versions
XDoc res = QueryPageVersions(pageid, after, before, cache);
XDoc beforeDoc = res["before/body"];
XDoc afterDoc = res["after/body"];
// check if either both versions or only one version were retrieved
XDoc diff = XDoc.Empty;
XDoc invisibleDiff = XDoc.Empty;
string summary = null;
if(!beforeDoc.IsEmpty && !afterDoc.IsEmpty) {
XDoc beforeChanges;
XDoc afterChanges;
DekiResource summaryResource = null;
// compute differences between 'before' and 'after' versions
diff = Utils.GetPageDiff(beforeDoc, afterDoc, true, DekiContext.Current.Instance.MaxDiffSize, out invisibleDiff, out summaryResource, out beforeChanges, out afterChanges);
// TODO (arnec): why are we using ToLower here at all and without a culture?
summary = resources.Localize(summaryResource).ToLower();
} else if(!afterDoc.IsEmpty) {
// since we don't have a 'before' version, just show the entire 'after' version (can happen for new pages or hidden revisions)
diff = afterDoc;
} else if(!beforeDoc.IsEmpty) {
// since we don't have a 'after' version, just show the entire 'before' version (can happen for hidden revisions)
diff = beforeDoc;
}
// add change summary
diffXml.Start("blockquote");
diffXml.Start("p").Elem("strong", summary).End();
// check if a diff was computed
if(!diff.IsEmpty) {
diffXml.Start("hr").Attr("width", "100%").Attr("size", "2").End();
diffXml.AddNodes(diff);
diffXml.Start("hr").Attr("width", "100%").Attr("size", "2").End();
// check if there are invisible changes as well to show
if(!invisibleDiff.IsEmpty) {
diffXml.Start("p").Elem("strong", resources.Localize(DekiResources.PAGE_DIFF_OTHER_CHANGES())).End();
diffXml.Add(invisibleDiff);
}
} else if(!invisibleDiff.IsEmpty) {
// only show invisible changes
diffXml.Start("hr").Attr("width", "100%").Attr("size", "2").End();
diffXml.Start("p").Elem("strong", resources.Localize(DekiResources.PAGE_DIFF_OTHER_CHANGES())).End();
diffXml.Add(invisibleDiff);
} else if(beforeDoc.IsEmpty && afterDoc.IsEmpty) {
// show message that page contents were not available anymore
diffXml.Elem("p", resources.Localize(DekiResources.PAGE_NOT_AVAILABLE()));
}
diffXml.End();
// store diff in cache
if(diffCacheEnabled && !afterDoc.IsEmpty) {
store.With("ttl", TimeSpan.FromDays(30).TotalSeconds).Put(diffXml, new Result<DreamMessage>(TimeSpan.MaxValue)).Block();
}
}
body.AddNodes(diffXml);
}
// check if we have a comment text
if(Utils.IsPageComment(type)) {
string text = change.CmntContent;
if(!string.IsNullOrEmpty(text) && !change.CmntDeleted) {
MimeType mime = new MimeType(change.CmntMimetype ?? MimeType.TEXT_UTF8.ToString());
if(mime.Match(MimeType.HTML)) {
XDoc html = XDocFactory.From(string.Format("<html><body>{0}</body></html>", text), MimeType.HTML);
body.Start("blockquote").AddNodes(html["body"]).End();
} else {
// anything else should be consider to be text
body.Start("blockquote").Elem("p", text).End();
}
} else {
// anything else should be consider to be text
body.Start("blockquote").Elem("p", resources.Localize(DekiResources.COMMENT_NOT_AVAILABLE())).End();
}
}
// adds links
body.Start("table").Attr("border", 0).Attr("padding", "5").Attr("width", "80%").Start("tr");
// add link for viewing the page
if(change.PageExists) {
Title view = new Title(title);
body.Start("td").Start("a").Attr("href", Utils.AsPublicUiUri(view, true)).Value(resources.Localize(DekiResources.VIEW_PAGE())).End().End();
}
// check if we need to add link for editing the page
if(after.HasValue && before.HasValue && (after != before)) {
Title edit = new Title(title) { Query = "action=edit" };
body.Start("td").Start("a").Attr("href", Utils.AsPublicUiUri(edit)).Value(resources.Localize(DekiResources.EDIT_PAGE())).End().End();
}
// check if we need to add link for viewing the complete diff
if(after.HasValue && before.HasValue && (after != before)) {
Title show = new Title(title) { Query = string.Format("diff={0}&revision={1}", after.Value, before.Value) };
body.Start("td").Start("a").Attr("href", Utils.AsPublicUiUri(show, true)).Value(resources.Localize(DekiResources.VIEW_PAGE_DIFF())).End().End();
}
// check if we need to add link for seeing full page history
if(after.HasValue && before.HasValue && (after != before)) {
Title history = new Title(title) { Query = "action=history" };
body.Start("td").Start("a").Attr("href", Utils.AsPublicUiUri(history)).Value(resources.Localize(DekiResources.VIEW_PAGE_HISTORY())).End().End();
}
// check if we need to add link for banning the user
List<KeyValuePair<string, string>> authors = change.SortedAuthors;
if((authors == null) || (authors.Count == 0)) {
authors = new List<KeyValuePair<string, string>> { new KeyValuePair<string, string>(change.Username, change.Fullname) };
}
for(int i = 0; i < authors.Count; ++i) {
string username = authors[i].Key;
string fullname = authors[i].Value;
if(!string.IsNullOrEmpty(username)) {
// don't put up ban link for admins.
UserBE user = DbUtils.CurrentSession.Users_GetByName(username);
if(!UserBL.IsAnonymous(user) && !PermissionsBL.IsUserAllowed(user, Permissions.ADMIN)) {
Title ban = Title.FromUIUri(null, "Special:Userban");
ban.Query += string.Format("username={0}", username);
body.Start("td").Start("a").Attr("href", Utils.AsPublicUiUri(ban)).Value(resources.Localize(DekiResources.BAN_USER(string.IsNullOrEmpty(fullname) ? username : fullname))).End().End();
}
}
}
// close HTML
body.End().End();
}
private static bool IsUserPageCreation(RecentChangeEntry item) {
if(!(item.Namespace == NS.USER && item.Type == RC.NEW) ) {
return false;
}
var title = Title.FromDbPath(item.Namespace, item.Title, null);
var parent = title.GetParent();
return parent != null && parent.IsRoot;
}
public static RecentChangeEntry FromXml(XDoc doc) {
var result = new RecentChangeEntry();
result.CmntContent = doc["cmnt_content"].AsText;
result.CmntDeleted = (doc["cmnt_deleted"].AsInt.GetValueOrDefault() != 0);
result.CmntId = doc["cmnt_id"].AsULong;
result.CmntMimetype = doc["cmnt_content_mimetype"].AsText;
result.CmntNumber = doc["cmnt_number"].AsInt;
result.Comment = doc["rc_comment"].AsText;
result.CurId = doc["rc_cur_id"].AsULong.GetValueOrDefault();
result.Fullname = doc["rc_full_name"].AsText;
result.Id = doc["rc_id"].AsULong.GetValueOrDefault();
result.LastOldId = doc["rc_last_oldid"].AsULong.Value;
result.MovedToNs = (NS)doc["rc_moved_to_ns"].AsInt.Value;
result.MovedToTitle = doc["rc_moved_to_title"].AsText;
result.Namespace = (NS)doc["rc_namespace"].AsInt.Value;
result.OldIsHidden = (doc["old_is_hidden"].AsInt.GetValueOrDefault() != 0);
result.PageExists = doc["rc_page_exists"].AsInt.GetValueOrDefault() != 0;
result.Revision = doc["rc_revision"].AsInt ?? 0;
result.ThisOldId = doc["rc_this_oldid"].AsULong.Value;
result.Timestamp = DbUtils.ToDateTime(doc["rc_timestamp"].AsText);
result.Title = doc["rc_title"].AsText;
result.Type = (RC)(doc["rc_type"].AsInt ?? 0);
result.Username = doc["rc_user_name"].AsText ?? string.Empty;
return result;
}