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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = isDataURI;
var _assertString = _interopRequireDefault(require("./util/assertString"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
var validMediaType = /^[a-z]+\/[a-z0-9\-\+\._]+$/i;
var validAttribute = /^[a-z\-]+=[a-z0-9\-]+$/i;
var validData = /^[a-z0-9!\$&'\(\)\*\+,;=\-\._~:@\/\?%\s]*$/i;
function isDataURI(str) {
(0, _assertString.default)(str);
var data = str.split(',');
if (data.length < 2) {
return false;
}
var attributes = data.shift().trim().split(';');
var schemeAndMediaType = attributes.shift();
if (schemeAndMediaType.slice(0, 5) !== 'data:') {
return false;
}
var mediaType = schemeAndMediaType.slice(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') && !validAttribute.test(attributes[i])) {
return false;
}
}
for (var _i = 0; _i < data.length; _i++) {
if (!validData.test(data[_i])) {
return false;
}
}
return true;
}
module.exports = exports.default;
module.exports.default = exports.default;