First support for md extensions; Package all needed dependencies in the repo

Source/node_modules/clean-css/lib/reader/is-allowed-resource.js

@@ -0,0 +1,77 @@
+var path = require('path');
+var url = require('url');
+
+var isRemoteResource = require('../utils/is-remote-resource');
+var hasProtocol = require('../utils/has-protocol');
+
+var HTTP_PROTOCOL = 'http:';
+
+function isAllowedResource(uri, isRemote, rules) {
+  var match;
+  var absoluteUri;
+  var allowed = isRemote ? false : true;
+  var rule;
+  var isNegated;
+  var normalizedRule;
+  var i;
+
+  if (rules.length === 0) {
+    return false;
+  }
+
+  if (isRemote && !hasProtocol(uri)) {
+    uri = HTTP_PROTOCOL + uri;
+  }
+
+  match = isRemote ?
+    url.parse(uri).host :
+    uri;
+
+  absoluteUri = isRemote ?
+    uri :
+    path.resolve(uri);
+
+  for (i = 0; i < rules.length; i++) {
+    rule = rules[i];
+    isNegated = rule[0] == '!';
+    normalizedRule = rule.substring(1);
+
+    if (isNegated && isRemote && isRemoteRule(normalizedRule)) {
+      allowed = allowed && !isAllowedResource(uri, true, [normalizedRule]);
+    } else if (isNegated && !isRemote && !isRemoteRule(normalizedRule)) {
+      allowed = allowed && !isAllowedResource(uri, false, [normalizedRule]);
+    } else if (isNegated) {
+      allowed = allowed && true;
+    } else if (rule == 'all') {
+      allowed = true;
+    } else if (isRemote && rule == 'local') {
+      allowed = allowed || false;
+    } else if (isRemote && rule == 'remote') {
+      allowed = true;
+    } else if (!isRemote && rule == 'remote') {
+      allowed = false;
+    } else if (!isRemote && rule == 'local') {
+      allowed = true;
+    } else if (rule === match) {
+      allowed = true;
+    } else if (rule === uri) {
+      allowed = true;
+    } else if (isRemote && absoluteUri.indexOf(rule) === 0) {
+      allowed = true;
+    } else if (!isRemote && absoluteUri.indexOf(path.resolve(rule)) === 0) {
+      allowed = true;
+    } else if (isRemote != isRemoteRule(normalizedRule)) {
+      allowed = allowed && true;
+    } else {
+      allowed = false;
+    }
+  }
+
+  return allowed;
+}
+
+function isRemoteRule(rule) {
+  return isRemoteResource(rule) || url.parse(HTTP_PROTOCOL + '//' + rule).host == rule;
+}
+
+module.exports = isAllowedResource;