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author | ethersphere <thesw@rm.eth> | 2018-06-20 20:06:27 +0800 |
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committer | ethersphere <thesw@rm.eth> | 2018-06-22 03:10:31 +0800 |
commit | e187711c6545487d4cac3701f0f506bb536234e2 (patch) | |
tree | d2f6150f70b84b36e49a449082aeda267b4b9046 /cmd/swarm/download.go | |
parent | 574378edb50c907b532946a1d4654dbd6701b20a (diff) | |
download | dexon-e187711c6545487d4cac3701f0f506bb536234e2.tar.gz dexon-e187711c6545487d4cac3701f0f506bb536234e2.tar.zst dexon-e187711c6545487d4cac3701f0f506bb536234e2.zip |
swarm: network rewrite merge
Diffstat (limited to 'cmd/swarm/download.go')
-rw-r--r-- | cmd/swarm/download.go | 85 |
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) + } + } +} |