From 897e0f869f9ec6300a5615a061cdee26402bd654 Mon Sep 17 00:00:00 2001
From: Matt Bell <mappum@gmail.com>
Date: Sat, 8 Nov 2014 21:09:29 -0800
Subject: [PATCH] cmds/ipfs2: Added '/ipfs' HTTP handling

---
 cmd/ipfs2/daemon.go      |  7 +++-
 cmd/ipfs2/ipfsHandler.go | 86 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 91 insertions(+), 2 deletions(-)
 create mode 100644 cmd/ipfs2/ipfsHandler.go

diff --git a/cmd/ipfs2/daemon.go b/cmd/ipfs2/daemon.go
index da3603cad..50d605e7c 100644
--- a/cmd/ipfs2/daemon.go
+++ b/cmd/ipfs2/daemon.go
@@ -50,8 +50,11 @@ func daemonFunc(res cmds.Response, req cmds.Request) {
 		return
 	}
 
-	handler := cmdsHttp.NewHandler(*ctx, commands.Root)
-	http.Handle(cmdsHttp.ApiPath+"/", handler)
+	cmdHandler := cmdsHttp.NewHandler(*ctx, commands.Root)
+	http.Handle(cmdsHttp.ApiPath+"/", cmdHandler)
+
+	ifpsHandler := &ipfsHandler{node}
+	http.Handle("/ipfs/", ifpsHandler)
 
 	fmt.Printf("API server listening on '%s'\n", host)
 
diff --git a/cmd/ipfs2/ipfsHandler.go b/cmd/ipfs2/ipfsHandler.go
new file mode 100644
index 000000000..46336026b
--- /dev/null
+++ b/cmd/ipfs2/ipfsHandler.go
@@ -0,0 +1,86 @@
+package main
+
+import (
+	"io"
+	"net/http"
+
+	mh "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-multihash"
+
+	core "github.com/jbenet/go-ipfs/core"
+	"github.com/jbenet/go-ipfs/importer"
+	dag "github.com/jbenet/go-ipfs/merkledag"
+	uio "github.com/jbenet/go-ipfs/unixfs/io"
+	u "github.com/jbenet/go-ipfs/util"
+)
+
+type ipfs interface {
+	ResolvePath(string) (*dag.Node, error)
+	NewDagFromReader(io.Reader) (*dag.Node, error)
+	AddNodeToDAG(nd *dag.Node) (u.Key, error)
+	NewDagReader(nd *dag.Node) (io.Reader, error)
+}
+
+type ipfsHandler struct {
+	node *core.IpfsNode
+}
+
+func (i *ipfsHandler) ResolvePath(path string) (*dag.Node, error) {
+	return i.node.Resolver.ResolvePath(path)
+}
+
+func (i *ipfsHandler) NewDagFromReader(r io.Reader) (*dag.Node, error) {
+	return importer.NewDagFromReader(r)
+}
+
+func (i *ipfsHandler) AddNodeToDAG(nd *dag.Node) (u.Key, error) {
+	return i.node.DAG.Add(nd)
+}
+
+func (i *ipfsHandler) NewDagReader(nd *dag.Node) (io.Reader, error) {
+	return uio.NewDagReader(nd, i.node.DAG)
+}
+
+func (i *ipfsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	path := r.URL.Path[5:]
+
+	nd, err := i.ResolvePath(path)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		log.Error(err)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	dr, err := i.NewDagReader(nd)
+	if err != nil {
+		// TODO: return json object containing the tree data if it's a directory (err == ErrIsDir)
+		w.WriteHeader(http.StatusInternalServerError)
+		log.Error(err)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	io.Copy(w, dr)
+}
+
+func (i *ipfsHandler) postHandler(w http.ResponseWriter, r *http.Request) {
+	nd, err := i.NewDagFromReader(r.Body)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		log.Error(err)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	k, err := i.AddNodeToDAG(nd)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		log.Error(err)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	//TODO: return json representation of list instead
+	w.WriteHeader(http.StatusCreated)
+	w.Write([]byte(mh.Multihash(k).B58String()))
+}