83 lines
3.1 KiB
Go
83 lines
3.1 KiB
Go
// Copyright 2016 Jimmy Zelinskie
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// Package trakr implements a BitTorrent Tracker that supports multiple
|
|
// protocols and configurable Hooks that execute before and after a Response
|
|
// has been delievered to a BitTorrent client.
|
|
package backend
|
|
|
|
import (
|
|
"time"
|
|
|
|
"log"
|
|
|
|
"github.com/jzelinskie/trakr/bittorrent"
|
|
"github.com/jzelinskie/trakr/frontend"
|
|
"golang.org/x/net/context"
|
|
)
|
|
|
|
// GenericConfig is a block of configuration who's structure is unknown.
|
|
type GenericConfig struct {
|
|
name string `yaml:"name"`
|
|
config interface{} `yaml:"config"`
|
|
}
|
|
|
|
type BackendConfig struct {
|
|
AnnounceInterval time.Duration `yaml:"announce_interval"`
|
|
PreHooks []GenericConfig `yaml:"prehooks"`
|
|
PostHooks []GenericConfig `yaml:"posthooks"`
|
|
}
|
|
|
|
var _ frontend.TrackerFuncs = &Backend{}
|
|
|
|
func New(config BackendConfig, peerStore PeerStore) (*Backend, error) {
|
|
// Build TrackerFuncs from the PreHooks and PostHooks
|
|
return &Backend{peerStore: peerStore}, nil
|
|
}
|
|
|
|
// Backend is a multi-protocol, customizable BitTorrent Tracker.
|
|
type Backend struct {
|
|
peerStore PeerStore
|
|
handleAnnounce func(context.Context, *bittorrent.AnnounceRequest) (*bittorrent.AnnounceResponse, error)
|
|
afterAnnounce func(context.Context, *bittorrent.AnnounceRequest, *bittorrent.AnnounceResponse) error
|
|
handleScrape func(context.Context, *bittorrent.ScrapeRequest) (*bittorrent.ScrapeResponse, error)
|
|
afterScrape func(context.Context, *bittorrent.ScrapeRequest, *bittorrent.ScrapeResponse) error
|
|
}
|
|
|
|
// HandleAnnounce generates a response for an Announce.
|
|
func (b *Backend) HandleAnnounce(ctx context.Context, req *bittorrent.AnnounceRequest) (*bittorrent.AnnounceResponse, error) {
|
|
return b.handleAnnounce(ctx, req)
|
|
}
|
|
|
|
// AfterAnnounce does something with the results of an Announce after it
|
|
// has been completed.
|
|
func (b *Backend) AfterAnnounce(ctx context.Context, req *bittorrent.AnnounceRequest, resp *bittorrent.AnnounceResponse) {
|
|
err := b.afterAnnounce(ctx, req, resp)
|
|
if err != nil {
|
|
log.Println("trakr: post-announce hooks failed:", err.Error())
|
|
}
|
|
}
|
|
|
|
// HandleScrape generates a response for a Scrape.
|
|
func (b *Backend) HandleScrape(ctx context.Context, req *bittorrent.ScrapeRequest) (*bittorrent.ScrapeResponse, error) {
|
|
return b.handleScrape(ctx, req)
|
|
}
|
|
|
|
// AfterScrape does something with the results of a Scrape after it has been completed.
|
|
func (b *Backend) AfterScrape(ctx context.Context, req *bittorrent.ScrapeRequest, resp *bittorrent.ScrapeResponse) {
|
|
err := b.afterScrape(ctx, req, resp)
|
|
if err != nil {
|
|
log.Println("trakr: post-scrape hooks failed:", err.Error())
|
|
}
|
|
}
|