1 | 'use strict'
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2 | var fs = require('fs')
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3 | var mkdirp = require('mkdirp')
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4 | var path = require('path')
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5 | var u = require('./util')
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6 |
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7 | function isObject (o) {
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8 | return 'object' === typeof o
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9 | }
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10 |
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11 | function isFunction (f) {
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12 | return 'function' === typeof f
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13 | }
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14 |
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15 | function empty(v) { return !!v }
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16 |
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17 | function toFile (filename) {
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18 | if(isObject(filename))
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19 | return path.join(filename.path, 'secret')
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20 | return filename
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21 | }
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22 |
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23 | module.exports = function (generate) {
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24 |
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25 | if(!fs || !fs.readFile)
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26 | return require('./local-storage')(generate)
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27 |
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28 | var exports = {}
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29 |
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30 |
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31 |
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32 | function constructKeys(keys, legacy) {
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33 | if(!keys) throw new Error('*must* pass in keys')
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34 |
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35 | return [
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36 | '# this is your SECRET name.',
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37 | '# this name gives you magical powers.',
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38 | '# with it you can mark your messages so that your friends can verify',
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39 | '# that they really did come from you.',
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40 | '#',
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41 | '# if any one learns this name, they can use it to destroy your identity',
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42 | '# NEVER show this to anyone!!!',
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43 | '',
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44 | legacy ? keys.private : JSON.stringify(keys, null, 2),
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45 | '',
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46 | '# WARNING! It\'s vital that you DO NOT edit OR share your secret name',
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47 | '# instead, share your public name',
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48 | '# your public name: ' + keys.id
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49 | ].join('\n')
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50 | }
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51 |
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52 | function reconstructKeys(keyfile) {
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53 | var privateKey = keyfile
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54 | .replace(/\s*\#[^\n]*/g, '')
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55 | .split('\n').filter(empty).join('')
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56 |
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57 |
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58 | try {
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59 | var keys = JSON.parse(privateKey)
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60 | if(!u.hasSigil(keys.id)) keys.id = '@' + keys.public
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61 | return keys
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62 | } catch (_) { console.error(_.stack) }
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63 | }
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64 |
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65 | exports.load = function(filename, cb) {
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66 | filename = toFile(filename, 'secret')
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67 | fs.readFile(filename, 'ascii', function(err, privateKeyStr) {
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68 | if (err) return cb(err)
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69 | var keys
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70 | try { keys = reconstructKeys(privateKeyStr) }
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71 | catch (err) { return cb(err) }
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72 | cb(null, keys)
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73 | })
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74 | }
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75 |
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76 | exports.loadSync = function(filename) {
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77 | filename = toFile(filename, 'secret')
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78 | return reconstructKeys(fs.readFileSync(filename, 'ascii'))
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79 | }
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80 |
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81 | exports.create = function(filename, curve, legacy, cb) {
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82 | if(isFunction(legacy))
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83 | cb = legacy, legacy = null
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84 | if(isFunction(curve))
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85 | cb = curve, curve = null
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86 |
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87 | filename = toFile(filename, 'secret')
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88 | var keys = generate(curve)
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89 | var keyfile = constructKeys(keys, legacy)
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90 | mkdirp(path.dirname(filename), function (err) {
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91 | if(err) return cb(err)
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92 | fs.writeFile(filename, keyfile, {mode: 0x100}, function(err) {
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93 | if (err) return cb(err)
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94 | cb(null, keys)
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95 | })
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96 | })
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97 | }
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98 |
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99 | exports.createSync = function(filename, curve, legacy) {
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100 | filename = toFile(filename, 'secret')
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101 | var keys = generate(curve)
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102 | var keyfile = constructKeys(keys, legacy)
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103 | mkdirp.sync(path.dirname(filename))
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104 | fs.writeFileSync(filename, keyfile, {mode: 0x100})
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105 | return keys
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106 | }
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107 |
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108 | return exports
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109 | }
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110 |
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111 |
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112 |
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