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authorElad <theman@elad.im>2018-08-15 23:41:52 +0800
committerBalint Gabor <balint.g@gmail.com>2018-08-15 23:41:52 +0800
commite8752f4e9f9be3d2932cd4835a5d72d17ac2338b (patch)
tree73f1514fc0134f2f5ef4b467f1076548b8a18bc3 /cmd/swarm
parent040aa2bb101e5e602308b24812bfbf2451b21174 (diff)
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cmd/swarm, swarm: added access control functionality (#17404)
Co-authored-by: Janos Guljas <janos@resenje.org> Co-authored-by: Anton Evangelatov <anton.evangelatov@gmail.com> Co-authored-by: Balint Gabor <balint.g@gmail.com>
Diffstat (limited to 'cmd/swarm')
-rw-r--r--cmd/swarm/access.go219
-rw-r--r--cmd/swarm/access_test.go581
-rw-r--r--cmd/swarm/config.go1
-rw-r--r--cmd/swarm/download.go40
-rw-r--r--cmd/swarm/list.go2
-rw-r--r--cmd/swarm/main.go95
-rw-r--r--cmd/swarm/run_test.go25
7 files changed, 929 insertions, 34 deletions
diff --git a/cmd/swarm/access.go b/cmd/swarm/access.go
new file mode 100644
index 000000000..12cfbfc1a
--- /dev/null
+++ b/cmd/swarm/access.go
@@ -0,0 +1,219 @@
+// Copyright 2018 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/>.
+package main
+
+import (
+ "crypto/rand"
+ "encoding/json"
+ "fmt"
+ "io"
+ "io/ioutil"
+ "strings"
+
+ "github.com/ethereum/go-ethereum/cmd/utils"
+ "github.com/ethereum/go-ethereum/swarm/api"
+ "github.com/ethereum/go-ethereum/swarm/api/client"
+ "gopkg.in/urfave/cli.v1"
+)
+
+var salt = make([]byte, 32)
+
+func init() {
+ if _, err := io.ReadFull(rand.Reader, salt); err != nil {
+ panic("reading from crypto/rand failed: " + err.Error())
+ }
+}
+
+func accessNewPass(ctx *cli.Context) {
+ args := ctx.Args()
+ if len(args) != 1 {
+ utils.Fatalf("Expected 1 argument - the ref")
+ }
+
+ var (
+ ae *api.AccessEntry
+ accessKey []byte
+ err error
+ ref = args[0]
+ password = getPassPhrase("", 0, makePasswordList(ctx))
+ dryRun = ctx.Bool(SwarmDryRunFlag.Name)
+ )
+ accessKey, ae, err = api.DoPasswordNew(ctx, password, salt)
+ if err != nil {
+ utils.Fatalf("error getting session key: %v", err)
+ }
+ m, err := api.GenerateAccessControlManifest(ctx, ref, accessKey, ae)
+ if dryRun {
+ err = printManifests(m, nil)
+ if err != nil {
+ utils.Fatalf("had an error printing the manifests: %v", err)
+ }
+ } else {
+ utils.Fatalf("uploading manifests")
+ err = uploadManifests(ctx, m, nil)
+ if err != nil {
+ utils.Fatalf("had an error uploading the manifests: %v", err)
+ }
+ }
+}
+
+func accessNewPK(ctx *cli.Context) {
+ args := ctx.Args()
+ if len(args) != 1 {
+ utils.Fatalf("Expected 1 argument - the ref")
+ }
+
+ var (
+ ae *api.AccessEntry
+ sessionKey []byte
+ err error
+ ref = args[0]
+ privateKey = getPrivKey(ctx)
+ granteePublicKey = ctx.String(SwarmAccessGrantKeyFlag.Name)
+ dryRun = ctx.Bool(SwarmDryRunFlag.Name)
+ )
+ sessionKey, ae, err = api.DoPKNew(ctx, privateKey, granteePublicKey, salt)
+ if err != nil {
+ utils.Fatalf("error getting session key: %v", err)
+ }
+ m, err := api.GenerateAccessControlManifest(ctx, ref, sessionKey, ae)
+ if dryRun {
+ err = printManifests(m, nil)
+ if err != nil {
+ utils.Fatalf("had an error printing the manifests: %v", err)
+ }
+ } else {
+ err = uploadManifests(ctx, m, nil)
+ if err != nil {
+ utils.Fatalf("had an error uploading the manifests: %v", err)
+ }
+ }
+}
+
+func accessNewACT(ctx *cli.Context) {
+ args := ctx.Args()
+ if len(args) != 1 {
+ utils.Fatalf("Expected 1 argument - the ref")
+ }
+
+ var (
+ ae *api.AccessEntry
+ actManifest *api.Manifest
+ accessKey []byte
+ err error
+ ref = args[0]
+ grantees = []string{}
+ actFilename = ctx.String(SwarmAccessGrantKeysFlag.Name)
+ privateKey = getPrivKey(ctx)
+ dryRun = ctx.Bool(SwarmDryRunFlag.Name)
+ )
+
+ bytes, err := ioutil.ReadFile(actFilename)
+ if err != nil {
+ utils.Fatalf("had an error reading the grantee public key list")
+ }
+ grantees = strings.Split(string(bytes), "\n")
+ accessKey, ae, actManifest, err = api.DoACTNew(ctx, privateKey, salt, grantees)
+ if err != nil {
+ utils.Fatalf("error generating ACT manifest: %v", err)
+ }
+
+ if err != nil {
+ utils.Fatalf("error getting session key: %v", err)
+ }
+ m, err := api.GenerateAccessControlManifest(ctx, ref, accessKey, ae)
+ if err != nil {
+ utils.Fatalf("error generating root access manifest: %v", err)
+ }
+
+ if dryRun {
+ err = printManifests(m, actManifest)
+ if err != nil {
+ utils.Fatalf("had an error printing the manifests: %v", err)
+ }
+ } else {
+ err = uploadManifests(ctx, m, actManifest)
+ if err != nil {
+ utils.Fatalf("had an error uploading the manifests: %v", err)
+ }
+ }
+}
+
+func printManifests(rootAccessManifest, actManifest *api.Manifest) error {
+ js, err := json.Marshal(rootAccessManifest)
+ if err != nil {
+ return err
+ }
+ fmt.Println(string(js))
+
+ if actManifest != nil {
+ js, err := json.Marshal(actManifest)
+ if err != nil {
+ return err
+ }
+ fmt.Println(string(js))
+ }
+ return nil
+}
+
+func uploadManifests(ctx *cli.Context, rootAccessManifest, actManifest *api.Manifest) error {
+ bzzapi := strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
+ client := client.NewClient(bzzapi)
+
+ var (
+ key string
+ err error
+ )
+ if actManifest != nil {
+ key, err = client.UploadManifest(actManifest, false)
+ if err != nil {
+ return err
+ }
+
+ rootAccessManifest.Entries[0].Access.Act = key
+ }
+ key, err = client.UploadManifest(rootAccessManifest, false)
+ if err != nil {
+ return err
+ }
+ fmt.Println(key)
+ return nil
+}
+
+// makePasswordList reads password lines from the file specified by the global --password flag
+// and also by the same subcommand --password flag.
+// This function ia a fork of utils.MakePasswordList to lookup cli context for subcommand.
+// Function ctx.SetGlobal is not setting the global flag value that can be accessed
+// by ctx.GlobalString using the current version of cli package.
+func makePasswordList(ctx *cli.Context) []string {
+ path := ctx.GlobalString(utils.PasswordFileFlag.Name)
+ if path == "" {
+ path = ctx.String(utils.PasswordFileFlag.Name)
+ if path == "" {
+ return nil
+ }
+ }
+ text, err := ioutil.ReadFile(path)
+ if err != nil {
+ utils.Fatalf("Failed to read password file: %v", err)
+ }
+ lines := strings.Split(string(text), "\n")
+ // Sanitise DOS line endings.
+ for i := range lines {
+ lines[i] = strings.TrimRight(lines[i], "\r")
+ }
+ return lines
+}
diff --git a/cmd/swarm/access_test.go b/cmd/swarm/access_test.go
new file mode 100644
index 000000000..163eb2b4d
--- /dev/null
+++ b/cmd/swarm/access_test.go
@@ -0,0 +1,581 @@
+// Copyright 2018 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/>.
+package main
+
+import (
+ "bytes"
+ "crypto/rand"
+ "encoding/hex"
+ "encoding/json"
+ "io"
+ "io/ioutil"
+ gorand "math/rand"
+ "net/http"
+ "os"
+ "path/filepath"
+ "strings"
+ "testing"
+ "time"
+
+ "github.com/ethereum/go-ethereum/crypto"
+ "github.com/ethereum/go-ethereum/crypto/sha3"
+ "github.com/ethereum/go-ethereum/log"
+ "github.com/ethereum/go-ethereum/swarm/api"
+ swarm "github.com/ethereum/go-ethereum/swarm/api/client"
+)
+
+// TestAccessPassword tests for the correct creation of an ACT manifest protected by a password.
+// The test creates bogus content, uploads it encrypted, then creates the wrapping manifest with the Access entry
+// The parties participating - node (publisher), uploads to second node then disappears. Content which was uploaded
+// is then fetched through 2nd node. since the tested code is not key-aware - we can just
+// fetch from the 2nd node using HTTP BasicAuth
+func TestAccessPassword(t *testing.T) {
+ cluster := newTestCluster(t, 1)
+ defer cluster.Shutdown()
+ proxyNode := cluster.Nodes[0]
+
+ // create a tmp file
+ tmp, err := ioutil.TempDir("", "swarm-test")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer os.RemoveAll(tmp)
+
+ // write data to file
+ data := "notsorandomdata"
+ dataFilename := filepath.Join(tmp, "data.txt")
+
+ err = ioutil.WriteFile(dataFilename, []byte(data), 0666)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ hashRegexp := `[a-f\d]{128}`
+
+ // upload the file with 'swarm up' and expect a hash
+ up := runSwarm(t,
+ "--bzzapi",
+ proxyNode.URL, //it doesn't matter through which node we upload content
+ "up",
+ "--encrypt",
+ dataFilename)
+ _, matches := up.ExpectRegexp(hashRegexp)
+ up.ExpectExit()
+
+ if len(matches) < 1 {
+ t.Fatal("no matches found")
+ }
+
+ ref := matches[0]
+
+ password := "smth"
+ passwordFilename := filepath.Join(tmp, "password.txt")
+
+ err = ioutil.WriteFile(passwordFilename, []byte(password), 0666)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ up = runSwarm(t,
+ "access",
+ "new",
+ "pass",
+ "--dry-run",
+ "--password",
+ passwordFilename,
+ ref,
+ )
+
+ _, matches = up.ExpectRegexp(".+")
+ up.ExpectExit()
+
+ if len(matches) == 0 {
+ t.Fatalf("stdout not matched")
+ }
+
+ var m api.Manifest
+
+ err = json.Unmarshal([]byte(matches[0]), &m)
+ if err != nil {
+ t.Fatalf("unmarshal manifest: %v", err)
+ }
+
+ if len(m.Entries) != 1 {
+ t.Fatalf("expected one manifest entry, got %v", len(m.Entries))
+ }
+
+ e := m.Entries[0]
+
+ ct := "application/bzz-manifest+json"
+ if e.ContentType != ct {
+ t.Errorf("expected %q content type, got %q", ct, e.ContentType)
+ }
+
+ if e.Access == nil {
+ t.Fatal("manifest access is nil")
+ }
+
+ a := e.Access
+
+ if a.Type != "pass" {
+ t.Errorf(`got access type %q, expected "pass"`, a.Type)
+ }
+ if len(a.Salt) < 32 {
+ t.Errorf(`got salt with length %v, expected not less the 32 bytes`, len(a.Salt))
+ }
+ if a.KdfParams == nil {
+ t.Fatal("manifest access kdf params is nil")
+ }
+
+ client := swarm.NewClient(cluster.Nodes[0].URL)
+
+ hash, err := client.UploadManifest(&m, false)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ httpClient := &http.Client{}
+
+ url := cluster.Nodes[0].URL + "/" + "bzz:/" + hash
+ response, err := httpClient.Get(url)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if response.StatusCode != http.StatusUnauthorized {
+ t.Fatal("should be a 401")
+ }
+ authHeader := response.Header.Get("WWW-Authenticate")
+ if authHeader == "" {
+ t.Fatal("should be something here")
+ }
+
+ req, err := http.NewRequest(http.MethodGet, url, nil)
+ if err != nil {
+ t.Fatal(err)
+ }
+ req.SetBasicAuth("", password)
+
+ response, err = http.DefaultClient.Do(req)
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer response.Body.Close()
+
+ if response.StatusCode != http.StatusOK {
+ t.Errorf("expected status %v, got %v", http.StatusOK, response.StatusCode)
+ }
+ d, err := ioutil.ReadAll(response.Body)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if string(d) != data {
+ t.Errorf("expected decrypted data %q, got %q", data, string(d))
+ }
+
+ wrongPasswordFilename := filepath.Join(tmp, "password-wrong.txt")
+
+ err = ioutil.WriteFile(wrongPasswordFilename, []byte("just wr0ng"), 0666)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ //download file with 'swarm down' with wrong password
+ up = runSwarm(t,
+ "--bzzapi",
+ proxyNode.URL,
+ "down",
+ "bzz:/"+hash,
+ tmp,
+ "--password",
+ wrongPasswordFilename)
+
+ _, matches = up.ExpectRegexp("unauthorized")
+ if len(matches) != 1 && matches[0] != "unauthorized" {
+ t.Fatal(`"unauthorized" not found in output"`)
+ }
+ up.ExpectExit()
+}
+
+// TestAccessPK tests for the correct creation of an ACT manifest between two parties (publisher and grantee).
+// The test creates bogus content, uploads it encrypted, then creates the wrapping manifest with the Access entry
+// The parties participating - node (publisher), uploads to second node (which is also the grantee) then disappears.
+// Content which was uploaded is then fetched through the grantee's http proxy. Since the tested code is private-key aware,
+// the test will fail if the proxy's given private key is not granted on the ACT.
+func TestAccessPK(t *testing.T) {
+ // Setup Swarm and upload a test file to it
+ cluster := newTestCluster(t, 1)
+ defer cluster.Shutdown()
+
+ // create a tmp file
+ tmp, err := ioutil.TempFile("", "swarm-test")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer tmp.Close()
+ defer os.Remove(tmp.Name())
+
+ // write data to file
+ data := "notsorandomdata"
+ _, err = io.WriteString(tmp, data)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ hashRegexp := `[a-f\d]{128}`
+
+ // upload the file with 'swarm up' and expect a hash
+ up := runSwarm(t,
+ "--bzzapi",
+ cluster.Nodes[0].URL,
+ "up",
+ "--encrypt",
+ tmp.Name())
+ _, matches := up.ExpectRegexp(hashRegexp)
+ up.ExpectExit()
+
+ if len(matches) < 1 {
+ t.Fatal("no matches found")
+ }
+
+ ref := matches[0]
+
+ pk := cluster.Nodes[0].PrivateKey
+ granteePubKey := crypto.CompressPubkey(&pk.PublicKey)
+
+ publisherDir, err := ioutil.TempDir("", "swarm-account-dir-temp")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ passFile, err := ioutil.TempFile("", "swarm-test")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer passFile.Close()
+ defer os.Remove(passFile.Name())
+ _, err = io.WriteString(passFile, testPassphrase)
+ if err != nil {
+ t.Fatal(err)
+ }
+ _, publisherAccount := getTestAccount(t, publisherDir)
+ up = runSwarm(t,
+ "--bzzaccount",
+ publisherAccount.Address.String(),
+ "--password",
+ passFile.Name(),
+ "--datadir",
+ publisherDir,
+ "--bzzapi",
+ cluster.Nodes[0].URL,
+ "access",
+ "new",
+ "pk",
+ "--dry-run",
+ "--grant-key",
+ hex.EncodeToString(granteePubKey),
+ ref,
+ )
+
+ _, matches = up.ExpectRegexp(".+")
+ up.ExpectExit()
+
+ if len(matches) == 0 {
+ t.Fatalf("stdout not matched")
+ }
+
+ var m api.Manifest
+
+ err = json.Unmarshal([]byte(matches[0]), &m)
+ if err != nil {
+ t.Fatalf("unmarshal manifest: %v", err)
+ }
+
+ if len(m.Entries) != 1 {
+ t.Fatalf("expected one manifest entry, got %v", len(m.Entries))
+ }
+
+ e := m.Entries[0]
+
+ ct := "application/bzz-manifest+json"
+ if e.ContentType != ct {
+ t.Errorf("expected %q content type, got %q", ct, e.ContentType)
+ }
+
+ if e.Access == nil {
+ t.Fatal("manifest access is nil")
+ }
+
+ a := e.Access
+
+ if a.Type != "pk" {
+ t.Errorf(`got access type %q, expected "pk"`, a.Type)
+ }
+ if len(a.Salt) < 32 {
+ t.Errorf(`got salt with length %v, expected not less the 32 bytes`, len(a.Salt))
+ }
+ if a.KdfParams != nil {
+ t.Fatal("manifest access kdf params should be nil")
+ }
+
+ client := swarm.NewClient(cluster.Nodes[0].URL)
+
+ hash, err := client.UploadManifest(&m, false)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ httpClient := &http.Client{}
+
+ url := cluster.Nodes[0].URL + "/" + "bzz:/" + hash
+ response, err := httpClient.Get(url)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if response.StatusCode != http.StatusOK {
+ t.Fatal("should be a 200")
+ }
+ d, err := ioutil.ReadAll(response.Body)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if string(d) != data {
+ t.Errorf("expected decrypted data %q, got %q", data, string(d))
+ }
+}
+
+// TestAccessACT tests the e2e creation, uploading and downloading of an ACT type access control
+// the test fires up a 3 node cluster, then randomly picks 2 nodes which will be acting as grantees to the data
+// set. the third node should fail decoding the reference as it will not be granted access. the publisher uploads through
+// one of the nodes then disappears.
+func TestAccessACT(t *testing.T) {
+ // Setup Swarm and upload a test file to it
+ cluster := newTestCluster(t, 3)
+ defer cluster.Shutdown()
+
+ var uploadThroughNode = cluster.Nodes[0]
+ client := swarm.NewClient(uploadThroughNode.URL)
+
+ r1 := gorand.New(gorand.NewSource(time.Now().UnixNano()))
+ nodeToSkip := r1.Intn(3) // a number between 0 and 2 (node indices in `cluster`)
+ // create a tmp file
+ tmp, err := ioutil.TempFile("", "swarm-test")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer tmp.Close()
+ defer os.Remove(tmp.Name())
+
+ // write data to file
+ data := "notsorandomdata"
+ _, err = io.WriteString(tmp, data)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ hashRegexp := `[a-f\d]{128}`
+
+ // upload the file with 'swarm up' and expect a hash
+ up := runSwarm(t,
+ "--bzzapi",
+ cluster.Nodes[0].URL,
+ "up",
+ "--encrypt",
+ tmp.Name())
+ _, matches := up.ExpectRegexp(hashRegexp)
+ up.ExpectExit()
+
+ if len(matches) < 1 {
+ t.Fatal("no matches found")
+ }
+
+ ref := matches[0]
+ grantees := []string{}
+ for i, v := range cluster.Nodes {
+ if i == nodeToSkip {
+ continue
+ }
+ pk := v.PrivateKey
+ granteePubKey := crypto.CompressPubkey(&pk.PublicKey)
+ grantees = append(grantees, hex.EncodeToString(granteePubKey))
+ }
+
+ granteesPubkeyListFile, err := ioutil.TempFile("", "grantees-pubkey-list.csv")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ _, err = granteesPubkeyListFile.WriteString(strings.Join(grantees, "\n"))
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ defer granteesPubkeyListFile.Close()
+ defer os.Remove(granteesPubkeyListFile.Name())
+
+ publisherDir, err := ioutil.TempDir("", "swarm-account-dir-temp")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ passFile, err := ioutil.TempFile("", "swarm-test")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer passFile.Close()
+ defer os.Remove(passFile.Name())
+ _, err = io.WriteString(passFile, testPassphrase)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ _, publisherAccount := getTestAccount(t, publisherDir)
+ up = runSwarm(t,
+ "--bzzaccount",
+ publisherAccount.Address.String(),
+ "--password",
+ passFile.Name(),
+ "--datadir",
+ publisherDir,
+ "--bzzapi",
+ cluster.Nodes[0].URL,
+ "access",
+ "new",
+ "act",
+ "--grant-keys",
+ granteesPubkeyListFile.Name(),
+ ref,
+ )
+
+ _, matches = up.ExpectRegexp(`[a-f\d]{64}`)
+ up.ExpectExit()
+
+ if len(matches) == 0 {
+ t.Fatalf("stdout not matched")
+ }
+ hash := matches[0]
+ m, _, err := client.DownloadManifest(hash)
+ if err != nil {
+ t.Fatalf("unmarshal manifest: %v", err)
+ }
+
+ if len(m.Entries) != 1 {
+ t.Fatalf("expected one manifest entry, got %v", len(m.Entries))
+ }
+
+ e := m.Entries[0]
+
+ ct := "application/bzz-manifest+json"
+ if e.ContentType != ct {
+ t.Errorf("expected %q content type, got %q", ct, e.ContentType)
+ }
+
+ if e.Access == nil {
+ t.Fatal("manifest access is nil")
+ }
+
+ a := e.Access
+
+ if a.Type != "act" {
+ t.Fatalf(`got access type %q, expected "act"`, a.Type)
+ }
+ if len(a.Salt) < 32 {
+ t.Fatalf(`got salt with length %v, expected not less the 32 bytes`, len(a.Salt))
+ }
+ if a.KdfParams != nil {
+ t.Fatal("manifest access kdf params should be nil")
+ }
+
+ httpClient := &http.Client{}
+
+ // all nodes except the skipped node should be able to decrypt the content
+ for i, node := range cluster.Nodes {
+ log.Debug("trying to fetch from node", "node index", i)
+
+ url := node.URL + "/" + "bzz:/" + hash
+ response, err := httpClient.Get(url)
+ if err != nil {
+ t.Fatal(err)
+ }
+ log.Debug("got response from node", "response code", response.StatusCode)
+
+ if i == nodeToSkip {
+ log.Debug("reached node to skip", "status code", response.StatusCode)
+
+ if response.StatusCode != http.StatusUnauthorized {
+ t.Fatalf("should be a 401")
+ }
+
+ continue
+ }
+
+ if response.StatusCode != http.StatusOK {
+ t.Fatal("should be a 200")
+ }
+ d, err := ioutil.ReadAll(response.Body)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if string(d) != data {
+ t.Errorf("expected decrypted data %q, got %q", data, string(d))
+ }
+ }
+}
+
+// TestKeypairSanity is a sanity test for the crypto scheme for ACT. it asserts the correct shared secret according to
+// the specs at https://github.com/ethersphere/swarm-docs/blob/eb857afda906c6e7bb90d37f3f334ccce5eef230/act.md
+func TestKeypairSanity(t *testing.T) {
+ salt := make([]byte, 32)
+ if _, err := io.ReadFull(rand.Reader, salt); err != nil {
+ t.Fatalf("reading from crypto/rand failed: %v", err.Error())
+ }
+ sharedSecret := "a85586744a1ddd56a7ed9f33fa24f40dd745b3a941be296a0d60e329dbdb896d"
+
+ for i, v := range []struct {
+ publisherPriv string
+ granteePub string
+ }{
+ {
+ publisherPriv: "ec5541555f3bc6376788425e9d1a62f55a82901683fd7062c5eddcc373a73459",
+ granteePub: "0226f213613e843a413ad35b40f193910d26eb35f00154afcde9ded57479a6224a",
+ },
+ {
+ publisherPriv: "70c7a73011aa56584a0009ab874794ee7e5652fd0c6911cd02f8b6267dd82d2d",
+ granteePub: "02e6f8d5e28faaa899744972bb847b6eb805a160494690c9ee7197ae9f619181db",
+ },
+ } {
+ b, _ := hex.DecodeString(v.granteePub)
+ granteePub, _ := crypto.DecompressPubkey(b)
+ publisherPrivate, _ := crypto.HexToECDSA(v.publisherPriv)
+
+ ssKey, err := api.NewSessionKeyPK(publisherPrivate, granteePub, salt)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ hasher := sha3.NewKeccak256()
+ hasher.Write(salt)
+ shared, err := hex.DecodeString(sharedSecret)
+ if err != nil {
+ t.Fatal(err)
+ }
+ hasher.Write(shared)
+ sum := hasher.Sum(nil)
+
+ if !bytes.Equal(ssKey, sum) {
+ t.Fatalf("%d: got a session key mismatch", i)
+ }
+ }
+}
diff --git a/cmd/swarm/config.go b/cmd/swarm/config.go
index cda8c41c3..1183f8bc8 100644
--- a/cmd/swarm/config.go
+++ b/cmd/swarm/config.go
@@ -78,6 +78,7 @@ const (
SWARM_ENV_STORE_PATH = "SWARM_STORE_PATH"
SWARM_ENV_STORE_CAPACITY = "SWARM_STORE_CAPACITY"
SWARM_ENV_STORE_CACHE_CAPACITY = "SWARM_STORE_CACHE_CAPACITY"
+ SWARM_ACCESS_PASSWORD = "SWARM_ACCESS_PASSWORD"
GETH_ENV_DATADIR = "GETH_DATADIR"
)
diff --git a/cmd/swarm/download.go b/cmd/swarm/download.go
index c2418f744..91bc2c93a 100644
--- a/cmd/swarm/download.go
+++ b/cmd/swarm/download.go
@@ -68,18 +68,36 @@ func download(ctx *cli.Context) {
utils.Fatalf("could not parse uri argument: %v", err)
}
- // assume behaviour according to --recursive switch
- if isRecursive {
- if err := client.DownloadDirectory(uri.Addr, uri.Path, dest); err != nil {
- utils.Fatalf("encoutered an error while downloading directory: %v", err)
- }
- } else {
- // we are downloading a file
- log.Debug(fmt.Sprintf("downloading file/path from a manifest. hash: %s, path:%s", uri.Addr, uri.Path))
+ dl := func(credentials string) error {
+ // assume behaviour according to --recursive switch
+ if isRecursive {
+ if err := client.DownloadDirectory(uri.Addr, uri.Path, dest, credentials); err != nil {
+ if err == swarm.ErrUnauthorized {
+ return err
+ }
+ return fmt.Errorf("directory %s: %v", uri.Path, err)
+ }
+ } else {
+ // we are downloading a file
+ log.Debug("downloading file/path from a manifest", "uri.Addr", uri.Addr, "uri.Path", uri.Path)
- err := client.DownloadFile(uri.Addr, uri.Path, dest)
- if err != nil {
- utils.Fatalf("could not download %s from given address: %s. error: %v", uri.Path, uri.Addr, err)
+ err := client.DownloadFile(uri.Addr, uri.Path, dest, credentials)
+ if err != nil {
+ if err == swarm.ErrUnauthorized {
+ return err
+ }
+ return fmt.Errorf("file %s from address: %s: %v", uri.Path, uri.Addr, err)
+ }
}
+ return nil
+ }
+ if passwords := makePasswordList(ctx); passwords != nil {
+ password := getPassPhrase(fmt.Sprintf("Downloading %s is restricted", uri), 0, passwords)
+ err = dl(password)
+ } else {
+ err = dl("")
+ }
+ if err != nil {
+ utils.Fatalf("download: %v", err)
}
}
diff --git a/cmd/swarm/list.go b/cmd/swarm/list.go
index 57b5517c6..01b3f4ab6 100644
--- a/cmd/swarm/list.go
+++ b/cmd/swarm/list.go
@@ -44,7 +44,7 @@ func list(ctx *cli.Context) {
bzzapi := strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
client := swarm.NewClient(bzzapi)
- list, err := client.List(manifest, prefix)
+ list, err := client.List(manifest, prefix, "")
if err != nil {
utils.Fatalf("Failed to generate file and directory list: %s", err)
}
diff --git a/cmd/swarm/main.go b/cmd/swarm/main.go
index ac09ae998..76be60cb6 100644
--- a/cmd/swarm/main.go
+++ b/cmd/swarm/main.go
@@ -155,6 +155,14 @@ var (
Name: "defaultpath",
Usage: "path to file served for empty url path (none)",
}
+ SwarmAccessGrantKeyFlag = cli.StringFlag{
+ Name: "grant-key",
+ Usage: "grants a given public key access to an ACT",
+ }
+ SwarmAccessGrantKeysFlag = cli.StringFlag{
+ Name: "grant-keys",
+ Usage: "grants a given list of public keys in the following file (separated by line breaks) access to an ACT",
+ }
SwarmUpFromStdinFlag = cli.BoolFlag{
Name: "stdin",
Usage: "reads data to be uploaded from stdin",
@@ -167,6 +175,15 @@ var (
Name: "encrypt",
Usage: "use encrypted upload",
}
+ SwarmAccessPasswordFlag = cli.StringFlag{
+ Name: "password",
+ Usage: "Password",
+ EnvVar: SWARM_ACCESS_PASSWORD,
+ }
+ SwarmDryRunFlag = cli.BoolFlag{
+ Name: "dry-run",
+ Usage: "dry-run",
+ }
CorsStringFlag = cli.StringFlag{
Name: "corsdomain",
Usage: "Domain on which to send Access-Control-Allow-Origin header (multiple domains can be supplied separated by a ',')",
@@ -254,6 +271,61 @@ func init() {
},
{
CustomHelpTemplate: helpTemplate,
+ Name: "access",
+ Usage: "encrypts a reference and embeds it into a root manifest",
+ ArgsUsage: "<ref>",
+ Description: "encrypts a reference and embeds it into a root manifest",
+ Subcommands: []cli.Command{
+ {
+ CustomHelpTemplate: helpTemplate,
+ Name: "new",
+ Usage: "encrypts a reference and embeds it into a root manifest",
+ ArgsUsage: "<ref>",
+ Description: "encrypts a reference and embeds it into a root access manifest and prints the resulting manifest",
+ Subcommands: []cli.Command{
+ {
+ Action: accessNewPass,
+ CustomHelpTemplate: helpTemplate,
+ Flags: []cli.Flag{
+ utils.PasswordFileFlag,
+ SwarmDryRunFlag,
+ },
+ Name: "pass",
+ Usage: "encrypts a reference with a password and embeds it into a root manifest",
+ ArgsUsage: "<ref>",
+ Description: "encrypts a reference and embeds it into a root access manifest and prints the resulting manifest",
+ },
+ {
+ Action: accessNewPK,
+ CustomHelpTemplate: helpTemplate,
+ Flags: []cli.Flag{
+ utils.PasswordFileFlag,
+ SwarmDryRunFlag,
+ SwarmAccessGrantKeyFlag,
+ },
+ Name: "pk",
+ Usage: "encrypts a reference with the node's private key and a given grantee's public key and embeds it into a root manifest",
+ ArgsUsage: "<ref>",
+ Description: "encrypts a reference and embeds it into a root access manifest and prints the resulting manifest",
+ },
+ {
+ Action: accessNewACT,
+ CustomHelpTemplate: helpTemplate,
+ Flags: []cli.Flag{
+ SwarmAccessGrantKeysFlag,
+ SwarmDryRunFlag,
+ },
+ Name: "act",
+ Usage: "encrypts a reference with the node's private key and a given grantee's public key and embeds it into a root manifest",
+ ArgsUsage: "<ref>",
+ Description: "encrypts a reference and embeds it into a root access manifest and prints the resulting manifest",
+ },
+ },
+ },
+ },
+ },
+ {
+ CustomHelpTemplate: helpTemplate,
Name: "resource",
Usage: "(Advanced) Create and update Mutable Resources",
ArgsUsage: "<create|update|info>",
@@ -304,16 +376,13 @@ func init() {
Description: "Prints the swarm hash of file or directory",
},
{
- Action: download,
- Name: "down",
- Flags: []cli.Flag{SwarmRecursiveFlag},
- Usage: "downloads a swarm manifest or a file inside a manifest",
- ArgsUsage: " <uri> [<dir>]",
- Description: `
-Downloads a swarm bzz uri to the given dir. When no dir is provided, working directory is assumed. --recursive flag is expected when downloading a manifest with multiple entries.
-`,
+ Action: download,
+ Name: "down",
+ Flags: []cli.Flag{SwarmRecursiveFlag, SwarmAccessPasswordFlag},
+ Usage: "downloads a swarm manifest or a file inside a manifest",
+ ArgsUsage: " <uri> [<dir>]",
+ Description: `Downloads a swarm bzz uri to the given dir. When no dir is provided, working directory is assumed. --recursive flag is expected when downloading a manifest with multiple entries.`,
},
-
{
Name: "manifest",
CustomHelpTemplate: helpTemplate,
@@ -413,16 +482,14 @@ pv(1) tool to get a progress bar:
Name: "import",
Usage: "import chunks from a tar archive into a local chunk database (use - to read from stdin)",
ArgsUsage: "<chunkdb> <file>",
- Description: `
-Import chunks from a tar archive into a local chunk database (use - to read from stdin).
+ Description: `Import chunks from a tar archive into a local chunk database (use - to read from stdin).
swarm db import ~/.ethereum/swarm/bzz-KEY/chunks chunks.tar
The import may be quite large, consider piping the input through the Unix
pv(1) tool to get a progress bar:
- pv chunks.tar | swarm db import ~/.ethereum/swarm/bzz-KEY/chunks -
-`,
+ pv chunks.tar | swarm db import ~/.ethereum/swarm/bzz-KEY/chunks -`,
},
{
Action: dbClean,
@@ -535,6 +602,7 @@ func version(ctx *cli.Context) error {
func bzzd(ctx *cli.Context) error {
//build a valid bzzapi.Config from all available sources:
//default config, file config, command line and env vars
+
bzzconfig, err := buildConfig(ctx)
if err != nil {
utils.Fatalf("unable to configure swarm: %v", err)
@@ -557,6 +625,7 @@ func bzzd(ctx *cli.Context) error {
if err != nil {
utils.Fatalf("can't create node: %v", err)
}
+
//a few steps need to be done after the config phase is completed,
//due to overriding behavior
initSwarmNode(bzzconfig, stack, ctx)
diff --git a/cmd/swarm/run_test.go b/cmd/swarm/run_test.go
index 90d3c98ba..3e766dc10 100644
--- a/cmd/swarm/run_test.go
+++ b/cmd/swarm/run_test.go
@@ -18,10 +18,12 @@ package main
import (
"context"
+ "crypto/ecdsa"
"fmt"
"io/ioutil"
"net"
"os"
+ "path"
"path/filepath"
"runtime"
"sync"
@@ -175,14 +177,15 @@ func (c *testCluster) Cleanup() {
}
type testNode struct {
- Name string
- Addr string
- URL string
- Enode string
- Dir string
- IpcPath string
- Client *rpc.Client
- Cmd *cmdtest.TestCmd
+ Name string
+ Addr string
+ URL string
+ Enode string
+ Dir string
+ IpcPath string
+ PrivateKey *ecdsa.PrivateKey
+ Client *rpc.Client
+ Cmd *cmdtest.TestCmd
}
const testPassphrase = "swarm-test-passphrase"
@@ -289,7 +292,11 @@ func existingTestNode(t *testing.T, dir string, bzzaccount string) *testNode {
func newTestNode(t *testing.T, dir string) *testNode {
conf, account := getTestAccount(t, dir)
- node := &testNode{Dir: dir}
+ ks := keystore.NewKeyStore(path.Join(dir, "keystore"), 1<<18, 1)
+
+ pk := decryptStoreAccount(ks, account.Address.Hex(), []string{testPassphrase})
+
+ node := &testNode{Dir: dir, PrivateKey: pk}
// assign ports
ports, err := getAvailableTCPPorts(2)