convering non-string and non-buffer case

Author: nginnever

src/dag-service.js

@@ -26,13 +26,20 @@ function DAGService (blockService) {
 
   // get retrieves a DAGNode, using the Block Service
   this.get = function (multihash, callback) {
-    if (Buffer.isBuffer(multihash)) {
+    const isBuf = Buffer.isBuffer(multihash)
+    const isString = typeof multihash === 'string'
+
+    if (!isBuf && !isString) {
+      return callback(new Error('Invalid Key'))
+    }
+
+    if (isBuf) {
       var mhString = base58.encode(multihash)
       if (!isIPFS.multihash(mhString)) { return callback(new Error('Invalid Key')) }
       this.getWith(multihash, callback)
     }
 
-    if (typeof multihash === 'string') {
+    if (isString) {
       var isMhash = isIPFS.multihash(multihash)
       var isPath = isIPFS.path(multihash)
       if (!isMhash && !isPath) {

tests/merkle-dag-tests.js

@@ -176,8 +176,7 @@ module.exports = function (repo) {
     })
 
     it('get a mdag node from a /ipfs/ path', (done) => {
-      var encodedMh = 'QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG'
-      var ipfsPath = '/ipfs/' + encodedMh
+      var ipfsPath = '/ipfs/QmYwAPJzv5CZsnA625s3Xf2nemtYgPpHdWEz79ojWnPbdG'
       dagService.get(ipfsPath, (err, fetchedNode) => {
         expect(err).to.not.exist
         expect(fetchedNode.data).to.deep.equal(new Buffer(bs58.decode('cL')))
@@ -205,6 +204,15 @@ module.exports = function (repo) {
       })
     })
 
+    it('supply something weird', (done) => {
+      var mh = 3
+      dagService.get(mh, (err, fetchedNode) => {
+        var error = 'Error: Invalid Key'
+        expect(err.toString()).to.equal(error)
+        done()
+      })
+    })
+
     it('get a dag recursively', (done) => {
       // 1 -> 2 -> 3
       const node1 = new DAGNode(new Buffer('1'))