forked from mystiq/hydrogen-web
69 lines
1.8 KiB
JavaScript
69 lines
1.8 KiB
JavaScript
/*
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Copyright 2021 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import DOMPurify from "dompurify"
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class HTMLParseResult {
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constructor(bodyNode) {
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this._bodyNode = bodyNode;
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}
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get rootNodes() {
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return Array.from(this._bodyNode.childNodes);
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}
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getChildNodes(node) {
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return Array.from(node.childNodes);
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}
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getAttributeNames(node) {
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return Array.from(node.getAttributeNames());
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}
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getAttributeValue(node, attr) {
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return node.getAttribute(attr);
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}
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isTextNode(node) {
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return node.nodeType === Node.TEXT_NODE;
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}
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getNodeText(node) {
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return node.textContent;
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}
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isElementNode(node) {
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return node.nodeType === Node.ELEMENT_NODE;
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}
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getNodeElementName(node) {
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return node.tagName;
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}
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}
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const sanitizeConfig = {
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ALLOWED_URI_REGEXP: /^(?:(?:(?:f|ht)tps?|mailto|tel|callto|cid|xmpp|xxx|mxc):|[^a-z]|[a-z+.-]+(?:[^a-z+.-:]|$))/i,
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ADD_TAGS: ['mx-reply']
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}
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export function parseHTML(html) {
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// If DOMPurify uses DOMParser, can't we just get the built tree from it
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// instead of re-parsing?
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const sanitized = DOMPurify.sanitize(html, sanitizeConfig);
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const bodyNode = new DOMParser().parseFromString(sanitized, "text/html").body;
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return new HTMLParseResult(bodyNode);
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}
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