0ec1104ba9
- intended to be a swarm alternative to termbin.com - added --stdin flag to swarm executable. if set, swarm will read data from stdin and postRaw it.
131 lines
3.5 KiB
Go
131 lines
3.5 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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// Command bzzup uploads files to the swarm HTTP API.
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package main
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import (
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"os/user"
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"path"
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"strings"
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"github.com/ethereum/go-ethereum/cmd/utils"
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swarm "github.com/ethereum/go-ethereum/swarm/api/client"
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"gopkg.in/urfave/cli.v1"
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)
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func upload(ctx *cli.Context) {
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args := ctx.Args()
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var (
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bzzapi = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
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recursive = ctx.GlobalBool(SwarmRecursiveUploadFlag.Name)
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wantManifest = ctx.GlobalBoolT(SwarmWantManifestFlag.Name)
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defaultPath = ctx.GlobalString(SwarmUploadDefaultPath.Name)
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fromStdin = ctx.GlobalBool(SwarmUpFromStdinFlag.Name)
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mimeType = ctx.GlobalString(SwarmUploadMimeType.Name)
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)
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var client = swarm.NewClient(bzzapi)
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var entry swarm.ManifestEntry
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var file string
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if len(args) != 1 {
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if fromStdin {
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tmp, err := ioutil.TempFile("", "swarm-stdin")
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if err != nil {
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utils.Fatalf("error create tempfile: %s", err)
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}
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defer os.Remove(tmp.Name())
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n, err := io.Copy(tmp, os.Stdin)
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if err != nil {
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utils.Fatalf("error copying stdin to tempfile: %s", err)
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} else if n == 0 {
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utils.Fatalf("error reading from stdin: zero length")
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}
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file = tmp.Name()
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} else {
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utils.Fatalf("Need filename as the first and only argument")
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}
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} else {
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file = args[0]
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}
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fi, err := os.Stat(expandPath(file))
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if err != nil {
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utils.Fatalf("Failed to stat file: %v", err)
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}
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if fi.IsDir() {
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if !recursive {
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utils.Fatalf("Argument is a directory and recursive upload is disabled")
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}
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if !wantManifest {
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utils.Fatalf("Manifest is required for directory uploads")
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}
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mhash, err := client.UploadDirectory(file, defaultPath)
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if err != nil {
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utils.Fatalf("Failed to upload directory: %v", err)
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}
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fmt.Println(mhash)
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return
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}
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entry, err = client.UploadFile(file, fi, mimeType)
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if err != nil {
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utils.Fatalf("Upload failed: %v", err)
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}
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mroot := swarm.Manifest{Entries: []swarm.ManifestEntry{entry}}
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if !wantManifest {
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// Print the manifest. This is the only output to stdout.
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mrootJSON, _ := json.MarshalIndent(mroot, "", " ")
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fmt.Println(string(mrootJSON))
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return
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}
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hash, err := client.UploadManifest(mroot)
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if err != nil {
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utils.Fatalf("Manifest upload failed: %v", err)
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}
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fmt.Println(hash)
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}
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// Expands a file path
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// 1. replace tilde with users home dir
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// 2. expands embedded environment variables
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// 3. cleans the path, e.g. /a/b/../c -> /a/c
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// Note, it has limitations, e.g. ~someuser/tmp will not be expanded
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func expandPath(p string) string {
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if strings.HasPrefix(p, "~/") || strings.HasPrefix(p, "~\\") {
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if home := homeDir(); home != "" {
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p = home + p[1:]
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}
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}
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return path.Clean(os.ExpandEnv(p))
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}
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func homeDir() string {
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if home := os.Getenv("HOME"); home != "" {
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return home
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}
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if usr, err := user.Current(); err == nil {
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return usr.HomeDir
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}
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return ""
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}
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