v12.0.0 - initial commit

packages/server/lib/blockchain/ethereum.js

@@ -0,0 +1,40 @@
+const { utils: coinUtils } = require('@lamassu/coins')
+
+const common = require('./common')
+
+module.exports = { setup, updateCore }
+
+function updateCore(coinRec, isCurrentlyRunning) {
+  common.logger.info(
+    'Updating the Geth Ethereum wallet. This may take a minute...',
+  )
+  common.es(`sudo supervisorctl stop ethereum`)
+  common.es(`curl -#o /tmp/ethereum.tar.gz ${coinRec.url}`)
+  if (
+    common.es(`sha256sum /tmp/ethereum.tar.gz | awk '{print $1}'`).trim() !==
+    coinRec.urlHash
+  ) {
+    common.logger.info('Failed to update Geth: Package signature do not match!')
+    return
+  }
+  common.es(`tar -xzf /tmp/ethereum.tar.gz -C /tmp/`)
+
+  common.logger.info('Updating wallet...')
+  common.es(`cp /tmp/${coinRec.dir}/geth /usr/local/bin/geth`)
+  common.es(`rm -r /tmp/${coinRec.dir}`)
+  common.es(`rm /tmp/ethereum.tar.gz`)
+
+  if (isCurrentlyRunning) {
+    common.logger.info('Starting wallet...')
+    common.es(`sudo supervisorctl start ethereum`)
+  }
+
+  common.logger.info('Geth is updated!')
+}
+
+function setup(dataDir) {
+  const coinRec = coinUtils.getCryptoCurrency('ETH')
+  common.firewall([coinRec.defaultPort])
+  const cmd = `/usr/local/bin/${coinRec.daemon} --datadir "${dataDir}" --syncmode="light" --cache 2048 --maxpeers 40 --http`
+  common.writeSupervisorConfig(coinRec, cmd)
+}