mirror of
https://gitlab.com/pulsechaincom/go-pulse.git
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189 lines
5.6 KiB
Go
189 lines
5.6 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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"errors"
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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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"path/filepath"
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"strconv"
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"strings"
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"github.com/ethereum/go-ethereum/log"
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swarm "github.com/ethereum/go-ethereum/swarm/api/client"
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"github.com/ethereum/go-ethereum/cmd/utils"
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"gopkg.in/urfave/cli.v1"
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)
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var upCommand = cli.Command{
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Action: upload,
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CustomHelpTemplate: helpTemplate,
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Name: "up",
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Usage: "uploads a file or directory to swarm using the HTTP API",
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ArgsUsage: "<file>",
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Flags: []cli.Flag{SwarmEncryptedFlag},
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Description: "uploads a file or directory to swarm using the HTTP API and prints the root hash",
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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(SwarmRecursiveFlag.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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client = swarm.NewClient(bzzapi)
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toEncrypt = ctx.Bool(SwarmEncryptedFlag.Name)
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autoDefaultPath = false
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file string
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)
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if autoDefaultPathString := os.Getenv(SwarmAutoDefaultPath); autoDefaultPathString != "" {
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b, err := strconv.ParseBool(autoDefaultPathString)
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if err != nil {
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utils.Fatalf("invalid environment variable %s: %v", SwarmAutoDefaultPath, err)
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}
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autoDefaultPath = b
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}
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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 = expandPath(args[0])
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}
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if !wantManifest {
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f, err := swarm.Open(file)
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if err != nil {
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utils.Fatalf("Error opening file: %s", err)
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}
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defer f.Close()
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hash, err := client.UploadRaw(f, f.Size, toEncrypt)
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if err != nil {
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utils.Fatalf("Upload failed: %s", err)
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}
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fmt.Println(hash)
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return
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}
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stat, err := os.Stat(file)
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if err != nil {
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utils.Fatalf("Error opening file: %s", err)
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}
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// define a function which either uploads a directory or single file
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// based on the type of the file being uploaded
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var doUpload func() (hash string, err error)
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if stat.IsDir() {
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doUpload = func() (string, error) {
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if !recursive {
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return "", errors.New("Argument is a directory and recursive upload is disabled")
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}
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if autoDefaultPath && defaultPath == "" {
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defaultEntryCandidate := path.Join(file, "index.html")
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log.Debug("trying to find default path", "path", defaultEntryCandidate)
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defaultEntryStat, err := os.Stat(defaultEntryCandidate)
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if err == nil && !defaultEntryStat.IsDir() {
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log.Debug("setting auto detected default path", "path", defaultEntryCandidate)
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defaultPath = defaultEntryCandidate
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}
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}
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if defaultPath != "" {
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// construct absolute default path
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absDefaultPath, _ := filepath.Abs(defaultPath)
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absFile, _ := filepath.Abs(file)
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// make sure absolute directory ends with only one "/"
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// to trim it from absolute default path and get relative default path
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absFile = strings.TrimRight(absFile, "/") + "/"
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if absDefaultPath != "" && absFile != "" && strings.HasPrefix(absDefaultPath, absFile) {
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defaultPath = strings.TrimPrefix(absDefaultPath, absFile)
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}
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}
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return client.UploadDirectory(file, defaultPath, "", toEncrypt)
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}
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} else {
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doUpload = func() (string, error) {
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f, err := swarm.Open(file)
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if err != nil {
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return "", fmt.Errorf("error opening file: %s", err)
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}
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defer f.Close()
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if mimeType != "" {
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f.ContentType = mimeType
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}
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return client.Upload(f, "", toEncrypt)
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}
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}
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hash, err := doUpload()
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if err != nil {
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utils.Fatalf("Upload failed: %s", 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 i := strings.Index(p, ":"); i > 0 {
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return p
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}
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if i := strings.Index(p, "@"); i > 0 {
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return p
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}
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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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