plugeth/cmd/swarm/upload.go
Lewis Marshall b319f027a0 cmd/swarm, swarm/api/client: add HTTP API client and 'swarm ls' command (#3742)
This adds a swarm ls command which lists files and directories stored in a
manifest. Rather than listing all files, it uses "directory prefixes" in case there are a
lot of files in a manifest but you just want to traverse it.

This also includes some refactoring to the tests and the introduction of a
swarm/api/client package to make things easier to test.
2017-04-05 00:20:07 +02:00

108 lines
3.0 KiB
Go

// Copyright 2016 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/>.
// Command bzzup uploads files to the swarm HTTP API.
package main
import (
"encoding/json"
"fmt"
"os"
"os/user"
"path"
"strings"
"github.com/ethereum/go-ethereum/cmd/utils"
swarm "github.com/ethereum/go-ethereum/swarm/api/client"
"gopkg.in/urfave/cli.v1"
)
func upload(ctx *cli.Context) {
args := ctx.Args()
var (
bzzapi = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
recursive = ctx.GlobalBool(SwarmRecursiveUploadFlag.Name)
wantManifest = ctx.GlobalBoolT(SwarmWantManifestFlag.Name)
defaultPath = ctx.GlobalString(SwarmUploadDefaultPath.Name)
)
if len(args) != 1 {
utils.Fatalf("Need filename as the first and only argument")
}
var (
file = args[0]
client = swarm.NewClient(bzzapi)
)
fi, err := os.Stat(expandPath(file))
if err != nil {
utils.Fatalf("Failed to stat file: %v", err)
}
if fi.IsDir() {
if !recursive {
utils.Fatalf("Argument is a directory and recursive upload is disabled")
}
if !wantManifest {
utils.Fatalf("Manifest is required for directory uploads")
}
mhash, err := client.UploadDirectory(file, defaultPath)
if err != nil {
utils.Fatalf("Failed to upload directory: %v", err)
}
fmt.Println(mhash)
return
}
entry, err := client.UploadFile(file, fi)
if err != nil {
utils.Fatalf("Upload failed: %v", err)
}
mroot := swarm.Manifest{Entries: []swarm.ManifestEntry{entry}}
if !wantManifest {
// Print the manifest. This is the only output to stdout.
mrootJSON, _ := json.MarshalIndent(mroot, "", " ")
fmt.Println(string(mrootJSON))
return
}
hash, err := client.UploadManifest(mroot)
if err != nil {
utils.Fatalf("Manifest upload failed: %v", err)
}
fmt.Println(hash)
}
// Expands a file path
// 1. replace tilde with users home dir
// 2. expands embedded environment variables
// 3. cleans the path, e.g. /a/b/../c -> /a/c
// Note, it has limitations, e.g. ~someuser/tmp will not be expanded
func expandPath(p string) string {
if strings.HasPrefix(p, "~/") || strings.HasPrefix(p, "~\\") {
if home := homeDir(); home != "" {
p = home + p[1:]
}
}
return path.Clean(os.ExpandEnv(p))
}
func homeDir() string {
if home := os.Getenv("HOME"); home != "" {
return home
}
if usr, err := user.Current(); err == nil {
return usr.HomeDir
}
return ""
}