public static CommentBE PostNewComment(PageBE page, DreamMessage request, DreamContext context) {
ValidateCommentText(request.ContentType, request.AsText());
CommentBE comment = new CommentBE();
comment.Title = context.GetParam("title", string.Empty);
comment.PageId = page.ID;
comment.Content = request.AsText();
comment.ContentMimeType = request.ContentType.ToString();
comment.PosterUserId = DekiContext.Current.User.ID;
comment.CreateDate = DateTime.UtcNow;
//Note (MaxM): Replytoid/replies not yet exposed
//ulong replyToId = context.GetParam<ulong>("replyto", 0);
//if (replyToId == 0)
// newComment.ReplyToId = null;
//else
// newComment.ReplyToId = replyToId;
ushort commentNumber;
uint commentId = DbUtils.CurrentSession.Comments_Insert(comment, out commentNumber);
if (commentId == 0) {
return null;
} else {
comment.Id = commentId;
comment.Number = commentNumber;
PageBL.Touch(page, comment.CreateDate);
RecentChangeBL.AddCommentCreateRecentChange(comment.CreateDate, page, DekiContext.Current.User, string.Format(DekiResources.COMMENT_ADDED, comment.Number.ToString()), comment);
return comment;
}
}
public virtual PageBE Copy(PageBE to)
{
to._Comment = _Comment;
to._DisplayName = _DisplayName;
to._Namespace = _Namespace;
to._TimeStamp = _TimeStamp;
to._Title = _Title;
to._Touched = _Touched;
to.ContentType = ContentType;
to.ID = ID;
to.IsNew = IsNew;
to.IsHidden = IsHidden;
to.IsRedirect = IsRedirect;
to.Language = Language;
to.Meta = Meta;
to.MinorEdit = MinorEdit;
to.ParentID = ParentID;
to.RestrictionID = RestrictionID;
to.Revision = Revision;
to.TextLength = TextLength;
to.TIP = TIP;
to.UseCache = UseCache;
to.UserID = UserID;
to.Etag = Etag;
return(to);
}
public static IList<CommentBE> RetrieveCommentsForPage(PageBE page, CommentFilter filter, bool includePageDescendants, uint? postedByUserId, SortDirection sortDir, uint offset, uint limit, out uint totalComments) {
IList<CommentBE> commentsForPage = DbUtils.CurrentSession.Comments_GetByPage(page, filter, includePageDescendants, postedByUserId, sortDir, offset, limit, out totalComments);
if(includePageDescendants) {
//Filter out comments from pages with no user permissions
//NOTE: this will mess up limits/offsets without a way to apply permissions at the db layer.
commentsForPage = ApplyPermissionFilter(commentsForPage);
}
return commentsForPage;
}
public static XDoc RetrievePageXDoc(PageBE page, uint pageId, ParserMode mode, string language, bool isInclude, int section, Title relToTitle, bool xhtml, out ParserResult parserResult) {
uint contextPageId = pageId;
if((mode == ParserMode.VIEW) && (contextPageId != uint.MaxValue) && page.Title.IsTemplate) {
// NOTE (steveb): page being rendered is a template and a contextual page was specified; this means we're rendering a global template page
PageBE contextPage = GetPageById(contextPageId);
if(contextPage == null) {
parserResult = new ParserResult();
return null;
}
parserResult = DekiXmlParser.ParseGlobalTemplate(contextPage, page);
} else {
parserResult = DekiXmlParser.Parse(page, page.ContentType, language ?? page.Language, page.GetText(DbUtils.CurrentSession), mode, isInclude, section, null, relToTitle);
}
if(page.Title.IsTemplate && isInclude) {
DekiXmlParser.PostProcessTemplateInsertBody(parserResult, page);
}
// post process tail element
DekiXmlParser.PostProcessParserResults(parserResult);
// BUGBUGBUG (steveb): we cannot properly restore an old title unless it had a display title set
// wrap the result in a content tag and return it to the user
XDoc result = new XDoc("content")
.Attr("type", parserResult.ContentType)
.Attr("etag", page.Etag)
.Attr("title", page.CustomTitle ?? page.Title.AsUserFriendlyName());
// check if page contains unsafe content
if(mode == ParserMode.EDIT) {
result.Attr("unsafe", !DekiScriptLibrary.VerifyXHtml(parserResult.MainBody, true));
}
if(xhtml) {
result.AddNodes(parserResult.Content);
} else {
// encode the result as nodes of text
foreach(XDoc entry in parserResult.Content.Elements) {
if(entry.HasName("body")) {
result.Start("body").Attr("target", entry["@target"].AsText).Value(entry.ToInnerXHtml()).End();
} else {
result.Elem(entry.Name, entry.ToInnerXHtml());
}
}
}
return result;
}
public static void ImportTemplatePages(PageBE page, Title[] templates) {
// for each template sub page, obtain its content and create a new subpage with it under the current page
foreach(Title template in templates) {
PageBE templatePage = PageBL.GetPageByTitle(template);
if((0 != templatePage.ID) && (PermissionsBL.IsUserAllowed(DekiContext.Current.User, templatePage, Permissions.READ))) {
string[] segments = template.AsUnprefixedDbSegments();
segments[0] = page.Title.AsPrefixedDbPath();
Title newTitle = Title.FromPrefixedDbPath(String.Join("/", segments).Trim('/'), null);
PageBE newPage = PageBL.GetPageByTitle(newTitle);
if(0 == newPage.ID) {
PageBL.Save(newPage, null, templatePage.GetText(DbUtils.CurrentSession), templatePage.ContentType, templatePage.Title.DisplayName, templatePage.Language);
}
}
}
}
//--- Methods ---
public static void SetRating(PageBE page, UserBE user, float? score) {
ThrowOnInvalidLicense();
RatingBE currentRating = DbUtils.CurrentSession.Rating_GetUserResourceRating(user.ID, page.ID, ResourceBE.Type.PAGE);
if(score == null) {
if(currentRating == null) {
// no rating exists currently: noop
return;
}
// reset a user ratings for a page
DbUtils.CurrentSession.Rating_ResetUserResourceRating(user.ID, page.ID, ResourceBE.Type.PAGE, DreamContext.Current.StartTime);
} else {
// set or update a page rating
// Valid score is limited to 0 and 1.
if(score != 0 && score != 1) {
throw new Exceptions.InvalidRatingScoreException();
}
if(currentRating != null && currentRating.Score == score) {
// an equal score already exists: noop
return;
}
RatingBE rating = new RatingBE();
rating.ResourceId = page.ID;
rating.ResourceType = ResourceBE.Type.PAGE;
rating.ResourceRevision = page.Revision;
rating.Timestamp = DreamContext.Current.StartTime;
rating.TimestampReset = null;
rating.UserId = user.ID;
rating.Score = score.Value;
// Set a new rating
DbUtils.CurrentSession.Rating_Insert(rating);
}
// Trigger a notification
DekiContext.Current.Instance.EventSink.PageRated(DreamContext.Current.StartTime, page, user);
}
public static DreamMessage BuildDeletedPageContents(uint pageid) {
ArchiveBE page = DbUtils.CurrentSession.Archive_GetPageHeadById(pageid);
if (page == null) {
throw new DreamAbortException(DreamMessage.NotFound(string.Format(DekiResources.RESTORE_PAGE_ID_NOT_FOUND, pageid)));
}
//HACKHACKHACK MaxM: Copy data to a PageBE object since parser will not work on an ArchiveBE. ArchiveBE needs to go away.
PageBE tempP = new PageBE();
tempP.Title = page.Title;
tempP.SetText(page.Text);
tempP.ContentType = page.ContentType;
ParserResult parserResult = DekiXmlParser.Parse(tempP, ParserMode.VIEW_NO_EXECUTE);
// TODO (steveb): this code is almost identical to the one in "GET:pages/{pageid}/contents"; consider merging
// post process tail
DekiXmlParser.PostProcessParserResults(parserResult);
// wrap the result in a content tag and return it to the user
XDoc result = new XDoc("content").Attr("type", parserResult.ContentType);
foreach (XDoc entry in parserResult.Content.Elements) {
if (entry.HasName("body")) {
result.Start("body").Attr("target", entry["@target"].AsText).Value(entry.ToInnerXHtml()).End();
} else {
result.Elem(entry.Name, entry.ToInnerXHtml());
}
}
// check if we hit a snag, which is indicated by a plain-text response
if ((parserResult.ContentType == MimeType.TEXT.FullType) && (page.ContentType != MimeType.TEXT.FullType)) {
// something happened during parsing
return new DreamMessage(DreamStatus.NonAuthoritativeInformation, null, result);
} else {
return DreamMessage.Ok(result);
}
}
/// <summary>
/// This applies permissions in a set/replace approach synonymous with PUT
/// </summary>
/// <param name="targetPage">Page to apply permissions to</param>
/// <param name="restriction">Optional restriction mask to apply to page (and optionally to child pages)</param>
/// <param name="proposedGrants">List of grants to apply to page and child pages</param>
/// <param name="cascade">
/// NONE: Dont apply permissions.
/// ABSOLUTE: proposedGrants are applied to root page and child pages. All grants not in the proposedGrants list are removed.
/// DELTAS: proposedGrants is applied exactly to the root page. Child pages get the differences between the proposedGrants and the grants of the root page thus preserving the grants they had.
/// </param>
public static void ReplacePagePermissions(PageBE targetPage, RoleBE restriction, IList<GrantBE> proposedGrants, CascadeType cascade) {
//Perform validation of grants.
// Make sure users and groups described in grants exist.
// this populates user/group object within the grant.
VerifyValidUsersAndGroups(proposedGrants);
// Ensure a duplicate grant isn't given for the same role multiple times to a user/grant
HashGrantsByTypeGranteeIdRoleId(proposedGrants);
IList<GrantBE> currentGrants, proposedAddedGrants, proposedRemovedGrants;
ulong userEffectiveRights = (ulong)GetUserPermissions(DekiContext.Current.User);
switch(cascade) {
case CascadeType.NONE:
//No cascading to children. delta(current security of page, proposed security) is applied
currentGrants = DbUtils.CurrentSession.Grants_GetByPage((uint)targetPage.ID);
CompareGrantSets(currentGrants, proposedGrants, out proposedAddedGrants, out proposedRemovedGrants);
ApplyPermissionChange(targetPage, false, userEffectiveRights, null, proposedAddedGrants, proposedRemovedGrants, currentGrants, restriction, true);
break;
case CascadeType.ABSOLUTE:
//Cascade proposed security set to children.
ApplyPermissionChange(targetPage, true, userEffectiveRights, proposedGrants, null, null, null, restriction, true);
break;
case CascadeType.DELTA:
//Cascade delta(current security of page, proposed security) to page and children
currentGrants = DbUtils.CurrentSession.Grants_GetByPage((uint)targetPage.ID);
CompareGrantSets(currentGrants, proposedGrants, out proposedAddedGrants, out proposedRemovedGrants);
// Note (arnec): even if proposed add & remove are empty, we have to call this method, since restriction may need to be set and propagated.
ApplyPermissionChange(targetPage, true, userEffectiveRights, null, proposedAddedGrants, proposedRemovedGrants, currentGrants, restriction, true);
break;
}
}
public static XDoc GetCommentXmlAsAtom(IList<CommentBE> comments, XUri feedUri, PageBE page) {
string title = string.Format(DekiResources.COMMENT_FOR, page.Title.AsUserFriendlyName());
XAtomFeed feed = new XAtomFeed(title, feedUri, DateTime.UtcNow);
feed.AddLink(PageBL.GetUriUi(page), XAtomBase.LinkRelation.Alternate, MimeType.XHTML, null, page.Title.AsUserFriendlyName());
feed.Id = feedUri;
foreach(CommentBE c in comments) {
UserBE posterUser = UserBL.GetUserById(c.PosterUserId);
title = c.Title;
if(string.IsNullOrEmpty(title)) {
title = string.Format(DekiResources.COMMENT_BY_TO, posterUser.Name, page.Title.AsUserFriendlyName());
}
XAtomEntry entry = feed.StartEntry(title, c.CreateDate, (c.LastEditDate == null || c.LastEditDate == DateTime.MinValue) ? c.CreateDate : c.LastEditDate.Value);
entry.Id = CommentBL.GetUri(c);
entry.AddAuthor(posterUser.Name, UserBL.GetUriUiHomePage(posterUser), posterUser.Email);
MimeType commentMimetype;
MimeType.TryParse(c.ContentMimeType, out commentMimetype);
entry.AddContent(c.Content);
XUri entryLink = PageBL.GetUriUi(page).WithFragment("comment" + c.Number);
entry.AddLink(entryLink, XAtomBase.LinkRelation.Alternate, null, null, null);
entry.AddLink(CommentBL.GetUri(c).At("content"), XAtomBase.LinkRelation.Enclosure, commentMimetype, c.Content.Length, "content");
feed.End();
}
return feed;
}
public static CommentBE EditExistingComment(PageBE page, CommentBE comment, DreamMessage request, DreamContext context) {
if (comment.PosterUserId != DekiContext.Current.User.ID) {
PermissionsBL.CheckUserAllowed(DekiContext.Current.User, Permissions.ADMIN);
}
ValidateCommentText(request.ContentType, request.AsText());
comment.LastEditDate = DateTime.UtcNow;
comment.LastEditUserId = DekiContext.Current.User.ID;
comment.Content = request.AsText();
comment.ContentMimeType = request.ContentType.ToString();
DbUtils.CurrentSession.Comments_Update(comment);
PageBL.Touch(page, comment.LastEditDate.Value);
RecentChangeBL.AddCommentUpdateRecentChange(comment.LastEditDate.Value, page, DekiContext.Current.User, string.Format(DekiResources.COMMENT_EDITED, comment.Number.ToString()), comment);
return comment;
}
//--- Methods ---
private string GetRecursiveRecentChangesTimestamp(PageBE page, bool includePages, bool includeFiles, bool includeComments, bool includeTags) {
RecentChangeEntry entry = null;
if(includePages && includeFiles && includeComments && includeTags) {
entry = QueryPageRecentChanges(page, DateTime.MinValue, 0, 1, true, false).First();
} else {
// TODO (steveb): we need to change this so that we _only_ query for the changes
// we actually need rather than fetch a whole bunch and discard them
var changes = QueryPageRecentChanges(page, DateTime.MinValue, 0, 100, true, false);
foreach(var change in changes) {
bool changed = false;
if(includePages) {
changed = changed
|| (change.Type == RC.EDIT)
|| (change.Type == RC.NEW)
|| (change.Type == RC.MOVE)
|| (change.Type == RC.MOVE_OVER_REDIRECT)
|| (change.Type == RC.PAGEDELETED)
|| (change.Type == RC.PAGERESTORED)
|| (change.Type == RC.PAGEMETA)
|| (change.Type == RC.GRANTS_ADDED)
|| (change.Type == RC.GRANTS_REMOVED)
|| (change.Type == RC.RESTRICTION_UPDATED);
}
if(includeFiles) {
changed = changed
|| (change.Type == RC.FILE);
}
if(includeComments) {
changed = changed
|| (change.Type == RC.COMMENT_CREATE)
|| (change.Type == RC.COMMENT_UPDATE)
|| (change.Type == RC.COMMENT_DELETE);
}
if(includeTags) {
changed = changed
|| (change.Type == RC.MOVE)
|| (change.Type == RC.MOVE_OVER_REDIRECT)
|| (change.Type == RC.TAGS);
}
if(changed) {
entry = change;
break;
}
}
// if no match was found, keep the timestamp of the oldest one
if(entry == null) {
entry = changes.Last();
}
}
return entry.Timestamp.ToString("yyyyMMddHHmmss");
}
public static RoleBE GetPageRestriction(PageBE page) {
if(page.RestrictionID == 0) {
// TODO (steveb): we assume this to be public, but there's no good way of retrieving public only
return GetRestrictionByName("Public");
}
return GetRestrictionById(page.RestrictionID);
}
private void GetCommentFromRequest(DreamContext context, Permissions access, out PageBE page, out CommentBE comment) {
page = null;
comment = null;
ushort commentNumber = context.GetParam<ushort>("commentnumber");
if(commentNumber != 0) {
page = PageBL_AuthorizePage(context, null, Permissions.READ, false);
comment = DbUtils.CurrentSession.Comments_GetByPageIdNumber(page.ID, commentNumber);
}
if(comment == null) {
throw new CommentNotFoundException();
}
}
public Yield GetNavigationFull(DreamContext context, DreamMessage request, Result<DreamMessage> response) {
CheckResponseCache(context, false);
PageBE page = PageBL_GetPageFromUrl(context, false);
if (page.Title.IsTalk) {
page = PageBL.GetPageByTitle(page.Title.AsFront());
}
// check if requestest page exists, otherwise find nearest parent
uint new_page_id = NavBL.NEW_PAGE_ID;
ulong homepageId = DekiContext.Current.Instance.HomePageId;
List<NavBE> list;
bool expandableNav = context.GetParam("type", "compact").EqualsInvariantIgnoreCase("expandable");
// check if a page was found
if(page.ID == 0) {
// find nearest ancestor and authorize access
PageBE ancestor = page;
while(!ancestor.Title.IsHomepage) {
// fetch ancestor page based on title
ulong id = DbUtils.CurrentSession.Nav_GetNearestParent(ancestor.Title);
ancestor = PageBL.GetPageById(id);
if(PermissionsBL.IsUserAllowed(DekiContext.Current.User, ancestor, Permissions.BROWSE)) {
break;
}
// determine parent page title
Title title = ancestor.Title.GetParent();
if(title == null) {
// current ancestor was the homepage
break;
}
ancestor = new PageBE { Title = title };
}
if(ancestor.ID == 0) {
ancestor = PageBL.GetHomePage();
}
list = NavBL.QueryNavTreeData(ancestor, context.Culture, expandableNav).ToList();
// find the nearest parent node and increase its child count
foreach(NavBE nearestAncestors in list) {
if(nearestAncestors.Id == ancestor.ID) {
nearestAncestors.ChildCount = nearestAncestors.ChildCount + 1;
break;
}
}
// for each missing node, generate a dummy page and insert it into result set
ulong ancestor_id = ancestor.ID;
string[] ancestor_segments = ancestor.Title.AsUnprefixedDbSegments();
string[] new_page_segments = page.Title.AsUnprefixedDbSegments();
List<NavBE> newNodes = new List<NavBE>(32);
for(int i = ancestor_segments.Length; i < new_page_segments.Length; ++i) {
string title = string.Join("/", new_page_segments, 0, i + 1);
// create dummy node with <page><page_id /><page_namespace /><page_title ><page_parent /><page_children /></page>
NavBE newPage = new NavBE {
Id = new_page_id,
NameSpace = (ushort)page.Title.Namespace,
Title = title,
ParentId = (ancestor_id == homepageId) ? 0 : ancestor_id,
ChildCount = (i == new_page_segments.Length - 1) ? 0 : 1
};
newNodes.Add(newPage);
// update page information
page.ID = new_page_id;
page.ParentID = ancestor_id;
ancestor_id = new_page_id++;
}
// check if we need to remove the children nodes of the ancestor
ancestor_id = (ancestor.ID == homepageId) ? 0 : (uint)ancestor.ID;
if(!expandableNav && (new_page_segments.Length - ancestor_segments.Length) > 1) {
// remove ancestor children and add new dummy nodes
for(int start = 0; start < list.Count; ++start ) {
// check if we found a matching child
if((list[start].ParentId == ancestor_id) && (list[start].Id != homepageId)) {
// look for last child to remove so we can remove an entire range at once
int end = start + 1;
for(; (end < list.Count) && (list[end].ParentId == ancestor_id) && (list[end].Id != homepageId); ++end) { }
list.RemoveRange(start, end - start);
--start;
}
}
} else {
// find where among the ancestor children we need to insert the dummy node
for(int index = 0; index < list.Count; ++index) {
NavBE current = list[index];
if((current.ParentId == ancestor_id) && (current.Id != homepageId)) {
string[] parts = Title.FromDbPath(NS.UNKNOWN, current.Title, current.DisplayName).AsUnprefixedDbSegments();
if((parts.Length > 0) && (new_page_segments.Length > 0) && (string.Compare(parts[parts.Length - 1], new_page_segments[parts.Length - 1], true, context.Culture) > 0)) {
// found the spot
list.InsertRange(index, newNodes);
newNodes = null;
break;
}
}
}
}
// check if we didn't find the spot
if(newNodes != null) {
// add new nodes to the end
list.AddRange(newNodes);
}
} else {
list = NavBL.QueryNavTreeData(page, context.Culture, expandableNav).ToList();
}
// find first parent
ulong parent_id = homepageId;
int parent_index = -1;
for(int i = 0; i < list.Count; ++i) {
if(list[i].Id == parent_id) {
parent_index = i;
break;
}
}
if(parent_index == -1) {
throw new Exception("unexpected [homepage not found]");
}
// add any missing ancestor nodes (might have been removed by permission check or might simply not exist)
string[] page_segments = page.Title.AsUnprefixedDbSegments();
ushort ns = (ushort)page.Title.Namespace;
for(int i = 0; i <= page_segments.Length; ++i) {
string title = string.Join("/", page_segments, 0, i);
// loop over all nodes
bool found = false;
for(int j = 0; j < list.Count; ++j) {
NavBE node = list[j];
// NOTE (steveb): we walk the path one parent at a time; however, there are a few special cases, because of namespaces
// for instance, the parent page of User:Bob is the homepage (ditto for Template:Page), but the parent page of Admin:Config is Admin:
// check if we found a node matching the current title
if((string.Compare(node.Title, title, true, context.Culture) == 0) && (((i == 0) && (ns != (ushort)NS.ADMIN)) ? (node.NameSpace == (ushort)NS.MAIN) : (node.NameSpace == ns))) {
found = true;
// let's make sure node is pointing to right parent
node.ParentId = (parent_id == homepageId) ? 0 : parent_id;
parent_id = node.Id;
parent_index = j;
break;
}
}
if(!found) {
// node is missing, let's create a new one
NavBE newPage = new NavBE {
Id = new_page_id,
NameSpace = (ushort)page.Title.Namespace,
Title = title,
ParentId = (parent_id == homepageId) ? 0 : parent_id, ChildCount = 1
};
// add new page after parent
list.Insert(parent_index + 1, newPage);
parent_id = new_page_id++;
parent_index = parent_index + 1;
}
}
// build response
if(ShowDebug(context)) {
response.Return(DreamMessage.Ok(NavBL.ConvertNavPageListToDoc(list)));
} else {
XDoc result = expandableNav ? NavBL.ComputeExpandableNavigationDocument(list, page, 0, 0, false) : NavBL.ComputeNavigationDocument(list, page, 0, 0, false, context.GetParam("width", int.MaxValue));
if(ShowXml(context)) {
response.Return(DreamMessage.Ok(result));
} else {
response.Return(DreamMessage.Ok(new XDoc("tree").Value(result.Contents)));
}
}
yield break;
}
public static PageBE[] FilterDisallowed(UserBE user, ICollection<PageBE> pages, bool throwException, bool allowApiKey, bool applyBanMask, out PageBE[] filteredOutPages, params Permissions[] actions) {
IEnumerable<ulong> filtered;
var pageLookup = pages.Distinct(x => x.ID).ToDictionary(x => x.ID);
var allowed = FilterDisallowed(user, pages.Select(x => x.ID), throwException, allowApiKey, applyBanMask, out filtered, actions);
filteredOutPages = filtered.Select(x => pageLookup[x]).ToArray();
return allowed.Select(x => pageLookup[x]).ToArray();
}
public static PageBE[] FilterDisallowed(UserBE user, ICollection<PageBE> pages, bool throwException, out PageBE[] filteredOutPages, params Permissions[] actions) {
return FilterDisallowed(user, pages, throwException, true, true, out filteredOutPages, actions);
}
private static bool CheckUserAllowed(UserBE user, PageBE page, bool throwException, params Permissions[] actions) {
if(user == null || page == null)
return false;
PageBE[] allowedPages = FilterDisallowed(user, new PageBE[] { page }, throwException, true, true, actions);
return (allowedPages == null || allowedPages.Length == 0) ? false : true;
}
public static void CheckUserAllowed(UserBE user, PageBE page, params Permissions[] actions) {
CheckUserAllowed(user, page, true, actions);
}
public static bool IsUserAllowed(UserBE user, PageBE page, params Permissions[] actions) {
return CheckUserAllowed(user, page, false, actions);
}
public static void DeleteComment(PageBE page, CommentBE comment) {
if (!comment.IsCommentMarkedAsDeleted) {
comment.DeleteDate = DateTime.UtcNow;
comment.DeleterUserId = DekiContext.Current.User.ID;
DbUtils.CurrentSession.Comments_Update(comment);
PageBL.Touch(page, comment.DeleteDate.Value);
RecentChangeBL.AddCommentDeleteRecentChange(comment.DeleteDate.Value, page, DekiContext.Current.User, string.Format(DekiResources.COMMENT_DELETED, comment.Number.ToString()), comment);
DekiContext.Current.Instance.EventSink.CommentDelete(DreamContext.Current.StartTime, comment, page, DekiContext.Current.User);
}
}
public virtual ResourceBE Delete(ResourceBE resource, PageBE parentPage, uint changeSetId) {
//Build the new revision
ResourceBE res = BuildRevForRemove(resource, DateTime.UtcNow, changeSetId);
//Update db
res = SaveResource(res);
//Update indexes and parent page's timestamp
//TODO MaxM: Changesink needs to accept a resource
if(res.ResourceType == ResourceBE.Type.FILE) {
DekiContext.Current.Instance.EventSink.AttachmentDelete(DekiContext.Current.Now, res, DekiContext.Current.User);
// Recent changes
RecentChangeBL.AddFileRecentChange(DekiContext.Current.Now, parentPage, DekiContext.Current.User, DekiResources.FILE_REMOVED(res.Name), changeSetId);
}
if(parentPage != null) {
PageBL.Touch(parentPage, DateTime.UtcNow);
}
return res;
}
public static ulong CalculateEffectivePageRights(PageBE page, UserBE user) {
//TODO (MaxM): This should be optimized to not make a direct db call but should instead calculate effective permissions based on
// Page.Grants, Page.Restriction, user.PermissionMask
ulong effectivePermissions = CalculateEffectiveForUserPage(user, page.ID);
return CalculatePermissionReduction(user, effectivePermissions);
}
public virtual ResourceBE BuildRevForRestore(ResourceBE currentResource, PageBE targetPage, string resourceName, uint changeSetId) {
ResourceBE newRev = BuildResourceRev(currentResource);
newRev.ResourceIsDeleted = false;
newRev.ChangeSetId = changeSetId;
newRev.ParentPageId = (uint)targetPage.ID;
newRev.Name = resourceName;
newRev.ChangeMask = newRev.ChangeMask | ResourceBE.ChangeOperations.DELETEFLAG;
return newRev;
}
public void MoveFile(ResourceBE attachment, PageBE targetPage) {
CheckDisposed();
//Nothing to do here.
}
public static List<GrantBE> ReadGrantsXml(XDoc grantsXml, PageBE page, bool ignoreInvalid) {
List<GrantBE> grants = new List<GrantBE>();
GrantBE g = null;
if(!grantsXml.IsEmpty) {
if(grantsXml.HasName("grant")) {
try {
g = ReadGrantXml(grantsXml, page);
} catch(ArgumentException x) {
if(!ignoreInvalid) {
throw new PermissionsGrantParseInvalidArgumentException(x.Message);
}
}
if(g != null) {
grants.Add(g);
}
}
//If rootnode is grants, pawn off inner xml to GrantFromXml in a loop.
else if(grantsXml.HasName("grants") || grantsXml.HasName("grants.added") || grantsXml.HasName("grants.removed")) {
foreach(XDoc grantXml in grantsXml["grant"]) {
try {
g = ReadGrantXml(grantXml, page);
} catch(ArgumentException x) {
if(!ignoreInvalid) {
throw new PermissionsGrantParseInvalidArgumentException(x.Message);
}
}
if(g != null) {
grants.Add(g);
}
}
}
}
return grants;
}
public virtual ResourceBE BuildRevForMoveAndRename(ResourceBE currentResource, PageBE targetPage, string name, uint changeSetId) {
ResourceBE newRev = BuildResourceRev(currentResource);
//NOTE MaxM: This logic exists here since BuildResourceRev clears out fields preventing chaining of entity building for separate actions on one revision
if(targetPage != null && (uint)targetPage.ID != newRev.ParentPageId.Value) {
newRev.ParentPageId = (uint)targetPage.ID;
newRev.ChangeMask |= ResourceBE.ChangeOperations.PARENT;
}
if(name != null && !StringUtil.EqualsInvariant(name, currentResource.Name)) {
newRev.Name = name;
newRev.ChangeMask |= ResourceBE.ChangeOperations.NAME;
}
newRev.ChangeSetId = changeSetId;
return newRev;
}
public static void DeleteAllGrantsForPage(PageBE page) {
DbUtils.CurrentSession.Grants_DeleteByPage(new List<ulong>() { page.ID });
RecentChangeBL.AddGrantsRemovedRecentChange(DateTime.UtcNow, page, DekiContext.Current.User, DekiResources.GRANT_REMOVED_ALL());
}
public XUri GetUriCanonical(PageBE page) {
throw new NotImplementedException();
}
private static GrantBE ReadGrantXml(XDoc grantXml, PageBE pg) {
GrantBE grant = new GrantBE();
if(grantXml["user/@id"].Contents != string.Empty) {
grant.UserId = DbUtils.Convert.To<uint>(grantXml["user/@id"].Contents, 0);
grant.Type = GrantType.USER;
}
if(grantXml["group/@id"].Contents != string.Empty) {
grant.GroupId = DbUtils.Convert.To<uint>(grantXml["group/@id"].Contents, 0);
grant.Type = GrantType.GROUP;
}
//Userid nor Groupid given or both given is invalid.
if((grant.UserId == 0 && grant.GroupId == 0) || (grant.UserId != 0 && grant.GroupId != 0)) {
throw new PermissionsUserOrGroupIDNotGivenInvalidArgumentException();
}
if(grantXml["permissions/role"].Contents == string.Empty)
throw new PermissionsRoleNotGivenInvalidArgumentException();
RoleBE r = GetRoleByName(grantXml["permissions/role"].Contents);
if(r == null)
throw new PermissionsUnrecognizedRoleInvalidArgumentRoleException();
grant.Role = r;
grant.RoleId = r.ID;
//Optional datetime expire field. If provided but unparsable, return null.
string expireString = grantXml["date.expires"].Contents;
if(expireString != string.Empty) {
DateTime expirationDate;
if(!DateTime.TryParse(expireString, out expirationDate)) {
throw new PermissionsExpiryParseInvalidArgumentException();
} else {
grant.ExpirationDate = expirationDate;
}
}
grant.PageId = (uint)pg.ID;
grant.CreatorUserId = DekiContext.Current.User.ID;
return grant;
}
private IEnumerable<RecentChangeEntry> QueryPageRecentChanges(PageBE page, DateTime since, int offset, int count, bool recurse, bool createOnly) {
return ConvertAndFilterXmlToRecentChanges(DbUtils.CurrentSession.RecentChanges_GetPageRecentChanges(page, since, recurse, createOnly, MAX_RECENT_CHANGES), offset, count, true);
}
public Dictionary<uint, IList<PageBE>> Tags_GetRelatedPages(IList<uint> tagids) {
// retrieve a map of tag id to pages
// each define tag maps to a list of related pages and each text tag maps to its defining page (if one exists)
Dictionary<uint, IList<PageBE>> result = new Dictionary<uint, IList<PageBE>>();
if(0 < tagids.Count) {
string tagIdsText = string.Join(",", DbUtils.ConvertArrayToDelimittedString<uint>(',', tagids));
//TODO MaxM: This query is causing quite a bit of db load and needs to be optimized
Catalog.NewQuery(string.Format(@" /* Tags_GetRelatedPages */
SELECT requested_tag_id as tag_id, page_id, page_title, page_namespace, page_display_name
FROM pages
JOIN tag_map
ON page_id = tagmap_page_id
JOIN
(SELECT requestedtags.tag_id as requested_tag_id, tags.tag_id from tags
JOIN tags as requestedtags
ON tags.tag_name = requestedtags.tag_name
WHERE ( ((tags.tag_type = 3 AND requestedtags.tag_type = 0)
OR (tags.tag_type = 0 AND requestedtags.tag_type = 3))
AND requestedtags.tag_id IN ({0}))) relatedtags
ON tagmap_tag_id = tag_id;"
, tagIdsText))
.Execute(delegate(IDataReader dr) {
while(dr.Read()) {
// extract the tag to page mapping
uint tagid = DbUtils.Convert.To<UInt32>(dr["tag_id"], 0);
PageBE page = new PageBE();
page.ID = DbUtils.Convert.To<UInt32>(dr["page_id"], 0);
page.Title = DbUtils.TitleFromDataReader(dr, "page_namespace", "page_title", "page_display_name");
// add the mapping into the collection
IList<PageBE> relatedPages;
if(!result.TryGetValue(tagid, out relatedPages)) {
relatedPages = new List<PageBE>();
result[tagid] = relatedPages;
}
relatedPages.Add(page);
}
});
}
return result;
}
