From 771a08d4f4f7ec6d5999b83425cf1fd2a85e3293 Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Thu, 20 Mar 2014 04:30:32 +1100
Subject: [PATCH] Add a scrape command so I can work out if trackers are seeing
 my test clients

I don't even know if scrape is the right word.
---
 cmd/scrape/main.go | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 cmd/scrape/main.go

diff --git a/cmd/scrape/main.go b/cmd/scrape/main.go
new file mode 100644
index 00000000..d0ee043e
--- /dev/null
+++ b/cmd/scrape/main.go
@@ -0,0 +1,39 @@
+package main
+
+import (
+	"bitbucket.org/anacrolix/go.torrent"
+	"bitbucket.org/anacrolix/go.torrent/tracker"
+	_ "bitbucket.org/anacrolix/go.torrent/tracker/udp"
+	"flag"
+	metainfo "github.com/nsf/libtorgo/torrent"
+	"log"
+	"os"
+)
+
+func main() {
+	flag.Parse()
+	mi, err := metainfo.Load(os.Stdin)
+	if err != nil {
+		log.Fatal(err)
+	}
+	for _, tier := range mi.AnnounceList {
+		for _, url := range tier {
+			tr, err := tracker.New(url)
+			if err != nil {
+				log.Fatal(err)
+			}
+			err = tr.Connect()
+			if err != nil {
+				log.Fatal(err)
+			}
+			resp, err := tr.Announce(&tracker.AnnounceRequest{
+				NumWant:  -1,
+				InfoHash: torrent.BytesInfoHash(mi.InfoHash),
+			})
+			if err != nil {
+				log.Fatal(err)
+			}
+			log.Print(resp)
+		}
+	}
+}