github.com/edxfund/validator@v1.8.16-0.20181020093046-c1def72855da/cmd/swarm/access.go (about) 1 // Copyright 2018 The go-ethereum Authors 2 // This file is part of go-ethereum. 3 // 4 // go-ethereum is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // go-ethereum is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 // 14 // You should have received a copy of the GNU General Public License 15 // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>. 16 package main 17 18 import ( 19 "crypto/rand" 20 "encoding/json" 21 "fmt" 22 "io" 23 "io/ioutil" 24 "strings" 25 26 "github.com/EDXFund/Validator/cmd/utils" 27 "github.com/EDXFund/Validator/swarm/api" 28 "github.com/EDXFund/Validator/swarm/api/client" 29 "gopkg.in/urfave/cli.v1" 30 ) 31 32 var salt = make([]byte, 32) 33 34 func init() { 35 if _, err := io.ReadFull(rand.Reader, salt); err != nil { 36 panic("reading from crypto/rand failed: " + err.Error()) 37 } 38 } 39 40 func accessNewPass(ctx *cli.Context) { 41 args := ctx.Args() 42 if len(args) != 1 { 43 utils.Fatalf("Expected 1 argument - the ref") 44 } 45 46 var ( 47 ae *api.AccessEntry 48 accessKey []byte 49 err error 50 ref = args[0] 51 password = getPassPhrase("", 0, makePasswordList(ctx)) 52 dryRun = ctx.Bool(SwarmDryRunFlag.Name) 53 ) 54 accessKey, ae, err = api.DoPassword(ctx, password, salt) 55 if err != nil { 56 utils.Fatalf("error getting session key: %v", err) 57 } 58 m, err := api.GenerateAccessControlManifest(ctx, ref, accessKey, ae) 59 if dryRun { 60 err = printManifests(m, nil) 61 if err != nil { 62 utils.Fatalf("had an error printing the manifests: %v", err) 63 } 64 } else { 65 utils.Fatalf("uploading manifests") 66 err = uploadManifests(ctx, m, nil) 67 if err != nil { 68 utils.Fatalf("had an error uploading the manifests: %v", err) 69 } 70 } 71 } 72 73 func accessNewPK(ctx *cli.Context) { 74 args := ctx.Args() 75 if len(args) != 1 { 76 utils.Fatalf("Expected 1 argument - the ref") 77 } 78 79 var ( 80 ae *api.AccessEntry 81 sessionKey []byte 82 err error 83 ref = args[0] 84 privateKey = getPrivKey(ctx) 85 granteePublicKey = ctx.String(SwarmAccessGrantKeyFlag.Name) 86 dryRun = ctx.Bool(SwarmDryRunFlag.Name) 87 ) 88 sessionKey, ae, err = api.DoPK(ctx, privateKey, granteePublicKey, salt) 89 if err != nil { 90 utils.Fatalf("error getting session key: %v", err) 91 } 92 m, err := api.GenerateAccessControlManifest(ctx, ref, sessionKey, ae) 93 if dryRun { 94 err = printManifests(m, nil) 95 if err != nil { 96 utils.Fatalf("had an error printing the manifests: %v", err) 97 } 98 } else { 99 err = uploadManifests(ctx, m, nil) 100 if err != nil { 101 utils.Fatalf("had an error uploading the manifests: %v", err) 102 } 103 } 104 } 105 106 func accessNewACT(ctx *cli.Context) { 107 args := ctx.Args() 108 if len(args) != 1 { 109 utils.Fatalf("Expected 1 argument - the ref") 110 } 111 112 var ( 113 ae *api.AccessEntry 114 actManifest *api.Manifest 115 accessKey []byte 116 err error 117 ref = args[0] 118 pkGrantees = []string{} 119 passGrantees = []string{} 120 pkGranteesFilename = ctx.String(SwarmAccessGrantKeysFlag.Name) 121 passGranteesFilename = ctx.String(utils.PasswordFileFlag.Name) 122 privateKey = getPrivKey(ctx) 123 dryRun = ctx.Bool(SwarmDryRunFlag.Name) 124 ) 125 if pkGranteesFilename == "" && passGranteesFilename == "" { 126 utils.Fatalf("you have to provide either a grantee public-keys file or an encryption passwords file (or both)") 127 } 128 129 if pkGranteesFilename != "" { 130 bytes, err := ioutil.ReadFile(pkGranteesFilename) 131 if err != nil { 132 utils.Fatalf("had an error reading the grantee public key list") 133 } 134 pkGrantees = strings.Split(string(bytes), "\n") 135 } 136 137 if passGranteesFilename != "" { 138 bytes, err := ioutil.ReadFile(passGranteesFilename) 139 if err != nil { 140 utils.Fatalf("could not read password filename: %v", err) 141 } 142 passGrantees = strings.Split(string(bytes), "\n") 143 } 144 accessKey, ae, actManifest, err = api.DoACT(ctx, privateKey, salt, pkGrantees, passGrantees) 145 if err != nil { 146 utils.Fatalf("error generating ACT manifest: %v", err) 147 } 148 149 if err != nil { 150 utils.Fatalf("error getting session key: %v", err) 151 } 152 m, err := api.GenerateAccessControlManifest(ctx, ref, accessKey, ae) 153 if err != nil { 154 utils.Fatalf("error generating root access manifest: %v", err) 155 } 156 157 if dryRun { 158 err = printManifests(m, actManifest) 159 if err != nil { 160 utils.Fatalf("had an error printing the manifests: %v", err) 161 } 162 } else { 163 err = uploadManifests(ctx, m, actManifest) 164 if err != nil { 165 utils.Fatalf("had an error uploading the manifests: %v", err) 166 } 167 } 168 } 169 170 func printManifests(rootAccessManifest, actManifest *api.Manifest) error { 171 js, err := json.Marshal(rootAccessManifest) 172 if err != nil { 173 return err 174 } 175 fmt.Println(string(js)) 176 177 if actManifest != nil { 178 js, err := json.Marshal(actManifest) 179 if err != nil { 180 return err 181 } 182 fmt.Println(string(js)) 183 } 184 return nil 185 } 186 187 func uploadManifests(ctx *cli.Context, rootAccessManifest, actManifest *api.Manifest) error { 188 bzzapi := strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/") 189 client := client.NewClient(bzzapi) 190 191 var ( 192 key string 193 err error 194 ) 195 if actManifest != nil { 196 key, err = client.UploadManifest(actManifest, false) 197 if err != nil { 198 return err 199 } 200 201 rootAccessManifest.Entries[0].Access.Act = key 202 } 203 key, err = client.UploadManifest(rootAccessManifest, false) 204 if err != nil { 205 return err 206 } 207 fmt.Println(key) 208 return nil 209 } 210 211 // makePasswordList reads password lines from the file specified by the global --password flag 212 // and also by the same subcommand --password flag. 213 // This function ia a fork of utils.MakePasswordList to lookup cli context for subcommand. 214 // Function ctx.SetGlobal is not setting the global flag value that can be accessed 215 // by ctx.GlobalString using the current version of cli package. 216 func makePasswordList(ctx *cli.Context) []string { 217 path := ctx.GlobalString(utils.PasswordFileFlag.Name) 218 if path == "" { 219 path = ctx.String(utils.PasswordFileFlag.Name) 220 if path == "" { 221 return nil 222 } 223 } 224 text, err := ioutil.ReadFile(path) 225 if err != nil { 226 utils.Fatalf("Failed to read password file: %v", err) 227 } 228 lines := strings.Split(string(text), "\n") 229 // Sanitise DOS line endings. 230 for i := range lines { 231 lines[i] = strings.TrimRight(lines[i], "\r") 232 } 233 return lines 234 }