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prevent attribute inheritance cycle via template, closes #1077

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zadam
2020-06-04 12:27:41 +02:00
parent 7307ca385f
commit 1502b9ce66
3 changed files with 35 additions and 20 deletions
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26
src/public/app/entities/note_short.js
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@@ -170,6 +170,16 @@ class NoteShort {
* @returns {Attribute[]} all note's attributes, including inherited ones
*/
getAttributes(type, name) {
return this.__filterAttrs(this.__getCachedAttributes([]), type, name);
}
__getCachedAttributes(path) {
// notes/clones cannot form tree cycles, it is possible to create attribute inheritance cycle via templates
// when template instance is a parent of template itself
if (path.includes(this.noteId)) {
return [];
}
if (!(this.noteId in noteAttributeCache)) {
const ownedAttributes = this.getOwnedAttributes();
@@ -177,11 +187,13 @@ class NoteShort {
ownedAttributes
];
const newPath = [...path, this.noteId];
for (const templateAttr of ownedAttributes.filter(oa => oa.type === 'relation' && oa.name === 'template')) {
const templateNote = this.treeCache.notes[templateAttr.value];
if (templateNote) {
attrArrs.push(templateNote.getAttributes());
if (templateNote && templateNote.noteId !== this.noteId) {
attrArrs.push(templateNote.__getCachedAttributes(newPath));
}
}
@@ -189,7 +201,7 @@ class NoteShort {
for (const parentNote of this.getParentNotes()) {
// these virtual parent-child relationships are also loaded into frontend tree cache
if (parentNote.type !== 'search') {
attrArrs.push(parentNote.getInheritableAttributes());
attrArrs.push(parentNote.__getInheritableAttributes(newPath));
}
}
}
@@ -197,7 +209,7 @@ class NoteShort {
noteAttributeCache.attributes[this.noteId] = attrArrs.flat();
}
return this.__filterAttrs(noteAttributeCache.attributes[this.noteId], type, name);
return noteAttributeCache.attributes[this.noteId];
}
__filterAttrs(attributes, type, name) {
@@ -212,8 +224,8 @@ class NoteShort {
}
}
getInheritableAttributes() {
const attrs = this.getAttributes();
__getInheritableAttributes(path) {
const attrs = this.__getCachedAttributes(path);
return attrs.filter(attr => attr.isInheritable);
}
@@ -460,4 +472,4 @@ class NoteShort {
}
}
export default NoteShort;
export default NoteShort;