node: require bindings or user-set backend

bcoin-org · Mar 14, 2019 · 67702c3 · 67702c3
1 parent 2b2e53d
commit 67702c3
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/lib/node/node.js b/lib/node/node.js
@@ -14,6 +14,7 @@ const Logger = require('blgr');
 const Config = require('bcfg');
 const Network = require('../protocol/network');
 const WorkerPool = require('../workers/workerpool');
+const sha256 = require('bcrypto/lib/sha256');
 
 /**
  * Node
@@ -187,6 +188,16 @@ class Node extends EventEmitter {
       this.logger.warning('Warning: worker pool is disabled.');
       this.logger.warning('Verification will be slow.');
     }
+
+    // native: 0 = js, 1 = node, 2 = bindings
+    if (sha256.native !== 2 &&
+        process.env.NODE_BACKEND !== 'js' &&
+        process.env.NODE_BACKEND !== 'node'
+    ) {
+        throw new Error(
+          'No bcrypto bindings. Must explicitly set `NODE_BACKEND=<js|node>`'
+        );
+      }
   }
 
   /**