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Prevent 500 with badly formed task list (#11328)
Fix #11317 Signed-off-by: Andrew Thornton <art27@cantab.net>
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parent
c9187b8116
commit
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@ -125,24 +125,30 @@ func (g *ASTTransformer) Transform(node *ast.Document, reader text.Reader, pc pa
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}
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v.Destination = link
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case *ast.List:
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if v.HasChildren() && v.FirstChild().HasChildren() && v.FirstChild().FirstChild().HasChildren() {
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if _, ok := v.FirstChild().FirstChild().FirstChild().(*east.TaskCheckBox); ok {
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v.SetAttributeString("class", []byte("task-list"))
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children := make([]ast.Node, 0, v.ChildCount())
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child := v.FirstChild()
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for child != nil {
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children = append(children, child)
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child = child.NextSibling()
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}
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v.RemoveChildren(v)
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if v.HasChildren() {
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children := make([]ast.Node, 0, v.ChildCount())
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child := v.FirstChild()
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for child != nil {
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children = append(children, child)
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child = child.NextSibling()
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}
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v.RemoveChildren(v)
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for _, child := range children {
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listItem := child.(*ast.ListItem)
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newChild := NewTaskCheckBoxListItem(listItem)
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taskCheckBox := child.FirstChild().FirstChild().(*east.TaskCheckBox)
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newChild.IsChecked = taskCheckBox.IsChecked
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v.AppendChild(v, newChild)
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for _, child := range children {
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listItem := child.(*ast.ListItem)
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if !child.HasChildren() || !child.FirstChild().HasChildren() {
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v.AppendChild(v, child)
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continue
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}
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taskCheckBox, ok := child.FirstChild().FirstChild().(*east.TaskCheckBox)
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if !ok {
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v.AppendChild(v, child)
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continue
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}
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newChild := NewTaskCheckBoxListItem(listItem)
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newChild.IsChecked = taskCheckBox.IsChecked
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newChild.SetAttributeString("class", []byte("task-list-item"))
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v.AppendChild(v, newChild)
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}
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}
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}
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@ -141,10 +141,10 @@ func testAnswers(baseURLContent, baseURLImages string) []string {
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<h2 id="user-content-custom-id">More tests</h2>
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<p>(from <a href="https://www.markdownguide.org/extended-syntax/" rel="nofollow">https://www.markdownguide.org/extended-syntax/</a>)</p>
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<h3 id="user-content-checkboxes">Checkboxes</h3>
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<ul class="task-list">
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<li><span class="ui checkbox"><input type="checkbox" readonly="readonly"/><label>unchecked</label></span></li>
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<li><span class="ui checked checkbox"><input type="checkbox" checked="" readonly="readonly"/><label>checked</label></span></li>
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<li><span class="ui checkbox"><input type="checkbox" readonly="readonly"/><label>still unchecked</label></span></li>
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<ul>
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<li class="task-list-item"><span class="ui checkbox"><input type="checkbox" readonly="readonly"/><label>unchecked</label></span></li>
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<li class="task-list-item"><span class="ui checked checkbox"><input type="checkbox" checked="" readonly="readonly"/><label>checked</label></span></li>
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<li class="task-list-item"><span class="ui checkbox"><input type="checkbox" readonly="readonly"/><label>still unchecked</label></span></li>
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</ul>
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<h3 id="user-content-definition-list">Definition list</h3>
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<dl>
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@ -54,7 +54,7 @@ func ReplaceSanitizer() {
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sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`ref-issue`)).OnElements("a")
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// Allow classes for task lists
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sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`task-list`)).OnElements("ul")
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sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`task-list-item`)).OnElements("li")
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// Allow icons
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sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`^icon(\s+[\p{L}\p{N}_-]+)+$`)).OnElements("i")
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@ -192,9 +192,9 @@
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list-style-type: none;
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}
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ul.task-list,
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ol.task-list {
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li.task-list-item {
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list-style-type: none;
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margin-left: calc(-2em + 2px);
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}
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ul ul,
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