client.seed: skip piece verification for performance

For https://github.com/feross/webtorrent/issues/235

1 files changed, 5 insertions, 3 deletions

diff --git a/lib/storage.js b/lib/storage.js
index df87305..2964f2f 100644
--- a/lib/storage.js
+++ b/lib/storage.js
@@ -28,14 +28,16 @@ inherits(Piece, EventEmitter)
  * @param {number} index  piece index
  * @param {string} hash   sha1 hash (hex) for this piece
  * @param {Buffer|number} buffer backing buffer for this piece or length of piece if the backing buffer is lazy
+ * @param {boolean=} noVerify skip piece verification (used when seeding a new file)
  */
-function Piece (index, hash, buffer) {
+function Piece (index, hash, buffer, noVerify) {
   var self = this
   EventEmitter.call(self)
   if (!debug.enabled) self.setMaxListeners(0)
 
   self.index = index
   self.hash = hash
+  self.noVerify = !!noVerify
 
   if (typeof buffer === 'number') {
     // alloc buffer lazily
@@ -130,7 +132,7 @@ Piece.prototype.verify = function (buffer) {
     return
   }
 
-  self.verified = (sha1(buffer) === self.hash)
+  self.verified = self.noVerify || (sha1(buffer) === self.hash)
   if (self.verified) {
     self.emit('done')
   } else {
@@ -333,7 +335,7 @@ function Storage (parsedTorrent, opts) {
     // otherwise, the piece's buffer will be lazily created on demand
     var buffer = (self.buffer ? self.buffer.slice(start, end) : end - start)
 
-    var piece = new Piece(index, hash, buffer)
+    var piece = new Piece(index, hash, buffer, !!opts.noVerify)
     piece.on('done', self._onPieceDone.bind(self, piece))
     return piece
   })