using AngleSharp.Css.Dom; using System; using System.Collections.Generic; using System.Collections.Immutable; using System.Runtime.CompilerServices; namespace Ganss.Xss { [System.Runtime.CompilerServices.NullableContext(1)] [System.Runtime.CompilerServices.Nullable(0)] public static class HtmlSanitizerDefaults { public static ISet<CssRuleType> AllowedAtRules { get; } = new HashSet<CssRuleType> { 1, 10 }.ToImmutableHashSet(); public static ISet<string> AllowedSchemes { get; } = new HashSet<string>(StringComparer.OrdinalIgnoreCase) { "http", "https" }.ToImmutableHashSet(StringComparer.OrdinalIgnoreCase); public static ISet<string> AllowedTags { get; } = new HashSet<string>(StringComparer.OrdinalIgnoreCase) { "a", "abbr", "acronym", "address", "area", "b", "big", "blockquote", "br", "button", "caption", "center", "cite", "code", "col", "colgroup", "dd", "del", "dfn", "dir", "div", "dl", "dt", "em", "fieldset", "font", "form", "h1", "h2", "h3", "h4", "h5", "h6", "hr", "i", "img", "input", "ins", "kbd", "label", "legend", "li", "map", "menu", "ol", "optgroup", "option", "p", "pre", "q", "s", "samp", "select", "small", "span", "strike", "strong", "sub", "sup", "table", "tbody", "td", "textarea", "tfoot", "th", "thead", "tr", "tt", "u", "ul", "var", "section", "nav", "article", "aside", "header", "footer", "main", "figure", "figcaption", "data", "time", "mark", "ruby", "rt", "rp", "bdi", "wbr", "datalist", "keygen", "output", "progress", "meter", "details", "summary", "menuitem", "html", "head", "body" }.ToImmutableHashSet(StringComparer.OrdinalIgnoreCase); public static ISet<string> AllowedAttributes { get; } = new HashSet<string>(StringComparer.OrdinalIgnoreCase) { "abbr", "accept", "accept-charset", "accesskey", "action", "align", "alt", "axis", "bgcolor", "border", "cellpadding", "cellspacing", "char", "charoff", "charset", "checked", "cite", "clear", "cols", "colspan", "color", "compact", "coords", "datetime", "dir", "disabled", "enctype", "for", "frame", "headers", "height", "href", "hreflang", "hspace", "ismap", "label", "lang", "longdesc", "maxlength", "media", "method", "multiple", "name", "nohref", "noshade", "nowrap", "prompt", "readonly", "rel", "rev", "rows", "rowspan", "rules", "scope", "selected", "shape", "size", "span", "src", "start", "style", "summary", "tabindex", "target", "title", "type", "usemap", "valign", "value", "vspace", "width", "high", "keytype", "list", "low", "max", "min", "novalidate", "open", "optimum", "pattern", "placeholder", "pubdate", "radiogroup", "required", "reversed", "spellcheck", "step", "wrap", "challenge", "contenteditable", "draggable", "dropzone", "autocomplete", "autosave" }.ToImmutableHashSet(StringComparer.OrdinalIgnoreCase); public static ISet<string> UriAttributes { get; } = new HashSet<string>(StringComparer.OrdinalIgnoreCase) { "action", "background", "dynsrc", "href", "lowsrc", "src" }.ToImmutableHashSet(StringComparer.OrdinalIgnoreCase); public static ISet<string> AllowedCssProperties { get; } = new HashSet<string>(StringComparer.OrdinalIgnoreCase) { "align-content", "align-items", "align-self", "all", "animation", "animation-delay", "animation-direction", "animation-duration", "animation-fill-mode", "animation-iteration-count", "animation-name", "animation-play-state", "animation-timing-function", "backface-visibility", "background", "background-attachment", "background-blend-mode", "background-clip", "background-color", "background-image", "background-origin", "background-position", "background-position-x", "background-position-y", "background-repeat", "background-repeat-x", "background-repeat-y", "background-size", "border", "border-bottom", "border-bottom-color", "border-bottom-left-radius", "border-bottom-right-radius", "border-bottom-style", "border-bottom-width", "border-collapse", "border-color", "border-image", "border-image-outset", "border-image-repeat", "border-image-slice", "border-image-source", "border-image-width", "border-left", "border-left-color", "border-left-style", "border-left-width", "border-radius", "border-right", "border-right-color", "border-right-style", "border-right-width", "border-spacing", "border-style", "border-top", "border-top-color", "border-top-left-radius", "border-top-right-radius", "border-top-style", "border-top-width", "border-width", "bottom", "box-decoration-break", "box-shadow", "box-sizing", "break-after", "break-before", "break-inside", "caption-side", "caret-color", "clear", "clip", "color", "column-count", "column-fill", "column-gap", "column-rule", "column-rule-color", "column-rule-style", "column-rule-width", "column-span", "column-width", "columns", "content", "counter-increment", "counter-reset", "cursor", "direction", "display", "empty-cells", "filter", "flex", "flex-basis", "flex-direction", "flex-flow", "flex-grow", "flex-shrink", "flex-wrap", "float", "font", "font-family", "font-feature-settings", "font-kerning", "font-language-override", "font-size", "font-size-adjust", "font-stretch", "font-style", "font-synthesis", "font-variant", "font-variant-alternates", "font-variant-caps", "font-variant-east-asian", "font-variant-ligatures", "font-variant-numeric", "font-variant-position", "font-weight", "gap", "grid", "grid-area", "grid-auto-columns", "grid-auto-flow", "grid-auto-rows", "grid-column", "grid-column-end", "grid-column-gap", "grid-column-start", "grid-gap", "grid-row", "grid-row-end", "grid-row-gap", "grid-row-start", "grid-template", "grid-template-areas", "grid-template-columns", "grid-template-rows", "hanging-punctuation", "height", "hyphens", "image-rendering", "isolation", "justify-content", "left", "letter-spacing", "line-break", "line-height", "list-style", "list-style-image", "list-style-position", "list-style-type", "margin", "margin-bottom", "margin-left", "margin-right", "margin-top", "mask", "mask-clip", "mask-composite", "mask-image", "mask-mode", "mask-origin", "mask-position", "mask-repeat", "mask-size", "mask-type", "max-height", "max-width", "min-height", "min-width", "mix-blend-mode", "object-fit", "object-position", "opacity", "order", "orphans", "outline", "outline-color", "outline-offset", "outline-style", "outline-width", "overflow", "overflow-wrap", "overflow-x", "overflow-y", "padding", "padding-bottom", "padding-left", "padding-right", "padding-top", "page-break-after", "page-break-before", "page-break-inside", "perspective", "perspective-origin", "pointer-events", "position", "quotes", "resize", "right", "row-gap", "scroll-behavior", "tab-size", "table-layout", "text-align", "text-align-last", "text-combine-upright", "text-decoration", "text-decoration-color", "text-decoration-line", "text-decoration-skip", "text-decoration-style", "text-indent", "text-justify", "text-orientation", "text-overflow", "text-shadow", "text-transform", "text-underline-position", "top", "transform", "transform-origin", "transform-style", "transition", "transition-delay", "transition-duration", "transition-property", "transition-timing-function", "unicode-bidi", "user-select", "vertical-align", "visibility", "white-space", "widows", "width", "word-break", "word-spacing", "word-wrap", "writing-mode", "z-index" }.ToImmutableHashSet(StringComparer.OrdinalIgnoreCase); public static ISet<string> AllowedClasses { get; } = new HashSet<string>(StringComparer.OrdinalIgnoreCase).ToImmutableHashSet(StringComparer.OrdinalIgnoreCase); } }