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Eudes Inácio
1 line
13 KiB
JSON
1 line
13 KiB
JSON
{"ast":null,"code":"/**\n * Does a simple sanitization of all elements\n * in an untrusted string\n */\nconst sanitizeDOMString = untrustedString => {\n try {\n if (untrustedString instanceof IonicSafeString) {\n return untrustedString.value;\n }\n if (!isSanitizerEnabled() || typeof untrustedString !== 'string' || untrustedString === '') {\n return untrustedString;\n }\n /**\n * Create a document fragment\n * separate from the main DOM,\n * create a div to do our work in\n */\n const documentFragment = document.createDocumentFragment();\n const workingDiv = document.createElement('div');\n documentFragment.appendChild(workingDiv);\n workingDiv.innerHTML = untrustedString;\n /**\n * Remove any elements\n * that are blocked\n */\n blockedTags.forEach(blockedTag => {\n const getElementsToRemove = documentFragment.querySelectorAll(blockedTag);\n for (let elementIndex = getElementsToRemove.length - 1; elementIndex >= 0; elementIndex--) {\n const element = getElementsToRemove[elementIndex];\n if (element.parentNode) {\n element.parentNode.removeChild(element);\n } else {\n documentFragment.removeChild(element);\n }\n /**\n * We still need to sanitize\n * the children of this element\n * as they are left behind\n */\n const childElements = getElementChildren(element);\n /* tslint:disable-next-line */\n for (let childIndex = 0; childIndex < childElements.length; childIndex++) {\n sanitizeElement(childElements[childIndex]);\n }\n }\n });\n /**\n * Go through remaining elements and remove\n * non-allowed attribs\n */\n // IE does not support .children on document fragments, only .childNodes\n const dfChildren = getElementChildren(documentFragment);\n /* tslint:disable-next-line */\n for (let childIndex = 0; childIndex < dfChildren.length; childIndex++) {\n sanitizeElement(dfChildren[childIndex]);\n }\n // Append document fragment to div\n const fragmentDiv = document.createElement('div');\n fragmentDiv.appendChild(documentFragment);\n // First child is always the div we did our work in\n const getInnerDiv = fragmentDiv.querySelector('div');\n return getInnerDiv !== null ? 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