From 46e43f4bde4a35785b4997b81e86cd19f046b69b Mon Sep 17 00:00:00 2001 From: Minteck Date: Tue, 21 Dec 2021 16:52:28 +0100 Subject: Commit --- src/node_modules/validator/es/lib/isDataURI.js | 40 ++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 src/node_modules/validator/es/lib/isDataURI.js (limited to 'src/node_modules/validator/es/lib/isDataURI.js') diff --git a/src/node_modules/validator/es/lib/isDataURI.js b/src/node_modules/validator/es/lib/isDataURI.js new file mode 100644 index 0000000..781be5b --- /dev/null +++ b/src/node_modules/validator/es/lib/isDataURI.js @@ -0,0 +1,40 @@ +import assertString from './util/assertString'; +var validMediaType = /^[a-z]+\/[a-z0-9\-\+]+$/i; +var validAttribute = /^[a-z\-]+=[a-z0-9\-]+$/i; +var validData = /^[a-z0-9!\$&'\(\)\*\+,;=\-\._~:@\/\?%\s]*$/i; +export default function isDataURI(str) { + assertString(str); + var data = str.split(','); + + if (data.length < 2) { + return false; + } + + var attributes = data.shift().trim().split(';'); + var schemeAndMediaType = attributes.shift(); + + if (schemeAndMediaType.substr(0, 5) !== 'data:') { + return false; + } + + var mediaType = schemeAndMediaType.substr(5); + + if (mediaType !== '' && !validMediaType.test(mediaType)) { + return false; + } + + for (var i = 0; i < attributes.length; i++) { + if (i === attributes.length - 1 && attributes[i].toLowerCase() === 'base64') {// ok + } else if (!validAttribute.test(attributes[i])) { + return false; + } + } + + for (var _i = 0; _i < data.length; _i++) { + if (!validData.test(data[_i])) { + return false; + } + } + + return true; +} \ No newline at end of file -- cgit