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authorethersphere <thesw@rm.eth>2018-06-20 20:06:27 +0800
committerethersphere <thesw@rm.eth>2018-06-22 03:10:31 +0800
commite187711c6545487d4cac3701f0f506bb536234e2 (patch)
treed2f6150f70b84b36e49a449082aeda267b4b9046 /cmd/swarm/download.go
parent574378edb50c907b532946a1d4654dbd6701b20a (diff)
downloaddexon-e187711c6545487d4cac3701f0f506bb536234e2.tar.gz
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swarm: network rewrite merge
Diffstat (limited to 'cmd/swarm/download.go')
-rw-r--r--cmd/swarm/download.go85
1 files changed, 85 insertions, 0 deletions
diff --git a/cmd/swarm/download.go b/cmd/swarm/download.go
new file mode 100644
index 000000000..c2418f744
--- /dev/null
+++ b/cmd/swarm/download.go
@@ -0,0 +1,85 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+package main
+
+import (
+ "fmt"
+ "os"
+ "path/filepath"
+ "strings"
+
+ "github.com/ethereum/go-ethereum/cmd/utils"
+ "github.com/ethereum/go-ethereum/log"
+ "github.com/ethereum/go-ethereum/swarm/api"
+ swarm "github.com/ethereum/go-ethereum/swarm/api/client"
+ "gopkg.in/urfave/cli.v1"
+)
+
+func download(ctx *cli.Context) {
+ log.Debug("downloading content using swarm down")
+ args := ctx.Args()
+ dest := "."
+
+ switch len(args) {
+ case 0:
+ utils.Fatalf("Usage: swarm down [options] <bzz locator> [<destination path>]")
+ case 1:
+ log.Trace(fmt.Sprintf("swarm down: no destination path - assuming working dir"))
+ default:
+ log.Trace(fmt.Sprintf("destination path arg: %s", args[1]))
+ if absDest, err := filepath.Abs(args[1]); err == nil {
+ dest = absDest
+ } else {
+ utils.Fatalf("could not get download path: %v", err)
+ }
+ }
+
+ var (
+ bzzapi = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
+ isRecursive = ctx.Bool(SwarmRecursiveFlag.Name)
+ client = swarm.NewClient(bzzapi)
+ )
+
+ if fi, err := os.Stat(dest); err == nil {
+ if isRecursive && !fi.Mode().IsDir() {
+ utils.Fatalf("destination path is not a directory!")
+ }
+ } else {
+ if !os.IsNotExist(err) {
+ utils.Fatalf("could not stat path: %v", err)
+ }
+ }
+
+ uri, err := api.Parse(args[0])
+ if err != nil {
+ utils.Fatalf("could not parse uri argument: %v", err)
+ }
+
+ // assume behaviour according to --recursive switch
+ if isRecursive {
+ if err := client.DownloadDirectory(uri.Addr, uri.Path, dest); err != nil {
+ utils.Fatalf("encoutered an error while downloading directory: %v", err)
+ }
+ } else {
+ // we are downloading a file
+ log.Debug(fmt.Sprintf("downloading file/path from a manifest. hash: %s, path:%s", uri.Addr, uri.Path))
+
+ err := client.DownloadFile(uri.Addr, uri.Path, dest)
+ if err != nil {
+ utils.Fatalf("could not download %s from given address: %s. error: %v", uri.Path, uri.Addr, err)
+ }
+ }
+}