Validate CDN Domains against Public Suffix LIst

Build/validate-cdn-conf.js

@@ -0,0 +1,57 @@
+const psl = require('psl');
+const picocolors = require('picocolors');
+
+const fs = require('fs');
+const path = require('path');
+
+(async () => {
+  const domainSetContent = await fs.promises.readFile(
+    path.resolve(__dirname, '../List/domainset/cdn.conf'),
+    { encoding: 'utf-8' }
+  );
+
+  const domainSetLines = domainSetContent.split('\n');
+  for (let i = 0, len = domainSetLines.length; i < len; i++) {
+    const line = domainSetLines[i];
+    // starts with #
+    if (line.charCodeAt(0) === 35) {
+      continue;
+    }
+    if (line.trim().length === 0) {
+      continue;
+    }
+
+    const domain = line.charCodeAt(0) === 46 ? line.slice(1) : line;
+    const parsed = psl.parse(domain);
+
+    if (parsed.listed && parsed.input === parsed.tld) {
+      console.error('Domain', picocolors.yellow(domain), picocolors.red('is in public suffix list!'));
+    }
+  }
+
+  const rulesetContent = await fs.promises.readFile(
+    path.resolve(__dirname, '../List/non_ip/cdn.conf'),
+    { encoding: 'utf-8' }
+  );
+  const rulesetLines = rulesetContent.split('\n');
+
+  for (let i = 0, len = rulesetLines.length; i < len; i++) {
+    const line = rulesetLines[i];
+    // starts with #
+    if (line.charCodeAt(0) === 35) {
+      continue;
+    }
+    if (line.trim().length === 0) {
+      continue;
+    }
+
+    if (line.startsWith('DOMAIN-SUFFIX')) {
+      const domain = line.slice(14);
+      const parsed = psl.parse(domain);
+
+      if (parsed.input !== parsed.tld) {
+        console.error('Domain', picocolors.yellow(domain), picocolors.green('is not in public suffix list!'));
+      }
+    }
+  }
+})();