1 files changed, 83 insertions, 0 deletions
diff --git a/tools/eslint-rules/crypto-check.js b/tools/eslint-rules/crypto-check.js
new file mode 100644
index 0000000000..b1b2a03f50
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+++ b/tools/eslint-rules/crypto-check.js
@@ -0,0 +1,83 @@
+/**
+ * @fileoverview Check that common.hasCrypto is used if crypto, tls,
+ * https, or http2 modules are required.
+ *
+ * This rule can be ignored using // eslint-disable-line crypto-check
+ *
+ * @author Daniel Bevenius <daniel.bevenius@gmail.com>
+ */
+'use strict';
+
+const utils = require('./rules-utils.js');
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+const msg = 'Please add a hasCrypto check to allow this test to be skipped ' +
+            'when Node is built "--without-ssl".';
+
+module.exports = function(context) {
+  const missingCheckNodes = [];
+  const requireNodes = [];
+  var hasSkipCall = false;
+
+  function testCryptoUsage(node) {
+    if (utils.isRequired(node, ['crypto', 'tls', 'https', 'http2'])) {
+      requireNodes.push(node);
+    }
+  }
+
+  function testIfStatement(node) {
+    if (node.test.argument === undefined) {
+      return;
+    }
+    if (isCryptoCheck(node.test.argument)) {
+      checkCryptoCall(node);
+    }
+  }
+
+  function isCryptoCheck(node) {
+    return utils.usesCommonProperty(node, ['hasCrypto', 'hasFipsCrypto']);
+  }
+
+  function checkCryptoCall(node) {
+    if (utils.inSkipBlock(node)) {
+      hasSkipCall = true;
+    } else {
+      missingCheckNodes.push(node);
+    }
+  }
+
+  function testMemberExpression(node) {
+    if (isCryptoCheck(node)) {
+      checkCryptoCall(node);
+    }
+  }
+
+  function reportIfMissingCheck(node) {
+    if (hasSkipCall) {
+      return;
+    }
+
+    if (requireNodes.length > 0) {
+      if (missingCheckNodes.length > 0) {
+        report(missingCheckNodes);
+      } else {
+        report(requireNodes);
+      }
+    }
+  }
+
+  function report(nodes) {
+    nodes.forEach((node) => {
+      context.report(node, msg);
+    });
+  }
+
+  return {
+    'CallExpression': (node) => testCryptoUsage(node),
+    'IfStatement:exit': (node) => testIfStatement(node),
+    'MemberExpression:exit': (node) => testMemberExpression(node),
+    'Program:exit': (node) => reportIfMissingCheck(node)
+  };
+};