Commit

1 files changed, 54 insertions, 0 deletions

diff --git a/src/node_modules/validator/lib/isDataURI.js b/src/node_modules/validator/lib/isDataURI.js
new file mode 100644
index 0000000..e882966
--- /dev/null
+++ b/src/node_modules/validator/lib/isDataURI.js
@@ -0,0 +1,54 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isDataURI;
+
+var _assertString = _interopRequireDefault(require("./util/assertString"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+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.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;
+}
+
+module.exports = exports.default;
+module.exports.default = exports.default;
\ No newline at end of file