From 9ff4dae26458d32f83c4018562af705fba6be748 Mon Sep 17 00:00:00 2001
From: Brian Tiger Chow <brian.holderchow@gmail.com>
Date: Sat, 24 Jan 2015 02:57:20 -0800
Subject: [PATCH] gateway server

initialize if not already initialized

remove gateway fs

add gateway server
---
 cmd/ipfs-gateway-fs/main.go | 101 ++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 cmd/ipfs-gateway-fs/main.go

diff --git a/cmd/ipfs-gateway-fs/main.go b/cmd/ipfs-gateway-fs/main.go
new file mode 100644
index 000000000..750ed4182
--- /dev/null
+++ b/cmd/ipfs-gateway-fs/main.go
@@ -0,0 +1,101 @@
+package main
+
+import (
+	"errors"
+	"flag"
+	"log"
+	"os"
+	"time"
+
+	context "github.com/jbenet/go-ipfs/Godeps/_workspace/src/code.google.com/p/go.net/context"
+	core "github.com/jbenet/go-ipfs/core"
+	corehttp "github.com/jbenet/go-ipfs/core/corehttp"
+	corerepo "github.com/jbenet/go-ipfs/core/corerepo"
+	coreunix "github.com/jbenet/go-ipfs/core/coreunix"
+	config "github.com/jbenet/go-ipfs/repo/config"
+	fsrepo "github.com/jbenet/go-ipfs/repo/fsrepo"
+)
+
+var (
+	refreshAssetsInterval  = flag.Duration("refresh-assets-interval", 30*time.Second, "refresh assets")
+	garbageCollectInterval = flag.Duration("gc-interval", 24*time.Hour, "frequency of repo garbage collection")
+	assetsPath             = flag.String("assets-path", "", "if provided, periodically adds contents of path to IPFS")
+	host                   = flag.String("host", "/ip4/0.0.0.0/tcp/8080", "override the HTTP host listening address")
+	nBitsForKeypair        = flag.Int("b", 1024, "number of bits for keypair (if repo is uninitialized)")
+)
+
+func main() {
+	flag.Parse()
+	if *assetsPath == "" {
+		log.Println("asset-path not provided. hosting gateway without file server functionality...")
+	}
+	if err := run(); err != nil {
+		log.Println(err)
+	}
+}
+
+func run() error {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	repoPath, err := fsrepo.BestKnownPath()
+	if err != nil {
+		return err
+	}
+
+	if !fsrepo.IsInitialized(repoPath) {
+		conf, err := config.Init(*nBitsForKeypair)
+		if err != nil {
+			return err
+		}
+		if err := fsrepo.Init(repoPath, conf); err != nil {
+			return err
+		}
+	}
+
+	repo := fsrepo.At(repoPath)
+	if err := repo.Open(); err != nil { // owned by node
+		return err
+	}
+
+	node, err := core.NewIPFSNode(ctx, core.Online(repo))
+	if err != nil {
+		return err
+	}
+	defer node.Close()
+
+	go func() {
+		for _ = range time.Tick(*garbageCollectInterval) {
+			if err := corerepo.GarbageCollect(node, ctx); err != nil {
+				log.Println("failed to run garbage collection", err)
+			}
+		}
+	}()
+
+	if *assetsPath != "" {
+		fi, err := os.Stat(*assetsPath)
+		if err != nil {
+			return err
+		}
+		if !fi.IsDir() {
+			return errors.New("asset path must be a directory")
+		}
+		go func() {
+			for _ = range time.Tick(*refreshAssetsInterval) {
+				_, err := coreunix.AddR(node, *assetsPath)
+				if err != nil {
+					log.Println(err)
+				}
+			}
+		}()
+	}
+
+	opts := []corehttp.ServeOption{
+		corehttp.GatewayOption,
+	}
+	if err := corehttp.ListenAndServe(node, *host, opts...); err != nil {
+		return err
+	}
+
+	// TODO serve files
+	return nil
+}