first commit

web/apiKeyManager.js

@@ -0,0 +1,48 @@
+const fs = require('fs');
+const _ = require('lodash');
+const cache = require('./state/cache');
+const broadcast = cache.get('broadcast');
+
+const apiKeysFile = __dirname + '/../SECRET-api-keys.json';
+
+// on init:
+const noApiKeysFile = !fs.existsSync(apiKeysFile);
+
+if(noApiKeysFile)
+  fs.writeFileSync(
+    apiKeysFile,
+    JSON.stringify({})
+  );
+
+const apiKeys = JSON.parse( fs.readFileSync(apiKeysFile, 'utf8') );
+
+module.exports = {
+  get: () => _.keys(apiKeys),
+
+  // note: overwrites if exists
+  add: (exchange, props) => {
+    apiKeys[exchange] = props;
+    fs.writeFileSync(apiKeysFile, JSON.stringify(apiKeys));
+
+    broadcast({
+      type: 'apiKeys',
+      exchanges: _.keys(apiKeys)
+    });
+  },
+  remove: exchange => {
+    if(!apiKeys[exchange])
+      return;
+
+    delete apiKeys[exchange];
+    fs.writeFileSync(apiKeysFile, JSON.stringify(apiKeys));
+
+    broadcast({
+      type: 'apiKeys',
+      exchanges: _.keys(apiKeys)
+    });
+  },
+
+  // retrieve api keys
+  // this cannot touch the frontend for security reaons.
+  _getApiKeyPair: key => apiKeys[key]
+}