rename frontends to frontend

frontend/frontend.go

@@ -0,0 +1,30 @@
+package frontend
+
+import (
+	"github.com/jzelinskie/trakr/bittorrent"
+	"golang.org/x/net/context"
+)
+
+// TrackerFuncs is the collection of callback functions provided by the Backend
+// to (1) generate a response from a parsed request, and (2) observe anything
+// after the response has been delivered to the client.
+type TrackerFuncs struct {
+	HandleAnnounce AnnounceHandler
+	HandleScrape   ScrapeHandler
+	AfterAnnounce  AnnounceCallback
+	AfterScrape    ScrapeCallback
+}
+
+// AnnounceHandler is a function that generates a response for an Announce.
+type AnnounceHandler func(context.Context, *bittorrent.AnnounceRequest) (*bittorrent.AnnounceResponse, error)
+
+// AnnounceCallback is a function that does something with the results of an
+// Announce after it has been completed.
+type AnnounceCallback func(*bittorrent.AnnounceRequest, *bittorrent.AnnounceResponse)
+
+// ScrapeHandler is a function that generates a response for a Scrape.
+type ScrapeHandler func(context.Context, *bittorrent.ScrapeRequest) (*bittorrent.ScrapeResponse, error)
+
+// ScrapeCallback is a function that does something with the results of a
+// Scrape after it has been completed.
+type ScrapeCallback func(*bittorrent.ScrapeRequest, *bittorrent.ScrapeResponse)