chore!: Remove deprecated client Init() function (#353)

* chore!: Remove deprecated client Init() function Has been deprecated for a release or so. This fixes some tests and removes others; the removals are all justified: - TestInitRootExpired: testing of InitLocal checks the behavior on expired roots (which is *different*; it allows expired roots) - TestInitRootTooLarge: covered now in TestUpdate We also add a "RawMeta" function, used to get at the root json. I could be persuaded that this should be a "RawRoot" instead. BREAKING CHANGE: remove client.Init() in favor of InitLocal() Signed-off-by: Zachary Newman <z@znewman.net> * refactor: replace Repo.RawMeta with Repo.GetMeta Signed-off-by: Zachary Newman <z@znewman.net>
theupdateframework · Aug 5, 2022 · 8124e8a · 8124e8a
1 parent 1b070ee
commit 8124e8a
Show file tree

Hide file tree

Showing 38 changed files with 1,352 additions and 76 deletions.
diff --git a/client/client.go b/client/client.go
@@ -106,49 +106,6 @@ func NewClient(local LocalStore, remote RemoteStore) *Client {
 	}
 }
 
-// Init initializes a local repository.
-//
-// The latest root.json is fetched from remote storage, verified using rootKeys
-// and threshold, and then saved in local storage. It is expected that rootKeys
-// were securely distributed with the software being updated.
-//
-// Deprecated: Use c.InitLocal and c.Update to initialize a local repository.
-func (c *Client) Init(rootKeys []*data.PublicKey, threshold int) error {
-	if len(rootKeys) < threshold {
-		return ErrInsufficientKeys
-	}
-	rootJSON, err := c.downloadMetaUnsafe("root.json", defaultRootDownloadLimit)
-	if err != nil {
-		return err
-	}
-
-	// create a new key database, and add all the public `rootKeys` to it.
-	c.db = verify.NewDB()
-	rootKeyIDs := make([]string, 0, len(rootKeys))
-	for _, key := range rootKeys {
-		for _, id := range key.IDs() {
-			rootKeyIDs = append(rootKeyIDs, id)
-			if err := c.db.AddKey(id, key); err != nil {
-				return err
-			}
-		}
-	}
-
-	// add a mock "root" role that trusts the passed in key ids. These keys
-	// will be used to verify the `root.json` we just fetched.
-	role := &data.Role{Threshold: threshold, KeyIDs: rootKeyIDs}
-	if err := c.db.AddRole("root", role); err != nil {
-		return err
-	}
-
-	// verify that the new root is valid.
-	if err := c.decodeRoot(rootJSON); err != nil {
-		return err
-	}
-
-	return c.local.SetMeta("root.json", rootJSON)
-}
-
 // InitLocal initializes a local repository from root metadata.
 //
 // The root's keys are extracted from the root and saved in local storage.

diff --git a/client/client_test.go b/client/client_test.go
@@ -174,17 +174,18 @@ func (s *ClientSuite) addRemoteTarget(c *C, name string) {
 	s.syncRemote(c)
 }
 
-func (s *ClientSuite) rootKeys(c *C) []*data.PublicKey {
-	rootKeys, err := s.repo.RootKeys()
+func (s *ClientSuite) rootMeta(c *C) []byte {
+	meta, err := s.repo.GetMeta()
 	c.Assert(err, IsNil)
-	c.Assert(rootKeys, HasLen, 1)
-	return rootKeys
+	rootMeta, ok := meta["root.json"]
+	c.Assert(ok, Equals, true)
+	return rootMeta
 }
 
 func (s *ClientSuite) newClient(c *C) *Client {
 	s.local = MemoryLocalStore()
 	client := NewClient(s.local, s.remote)
-	c.Assert(client.Init(s.rootKeys(c), 1), IsNil)
+	c.Assert(client.InitLocal(s.rootMeta(c)), IsNil)
 	return client
 }
 
@@ -243,39 +244,21 @@ func (s *ClientSuite) assertErrExpired(c *C, err error, file string) {
 	c.Assert(expiredErr.Expired.Unix(), Equals, s.expiredTime.Round(time.Second).Unix())
 }
 
-func (s *ClientSuite) TestInitRootTooLarge(c *C) {
-	client := NewClient(MemoryLocalStore(), s.remote)
-	s.remote.meta["root.json"] = newFakeFile(make([]byte, defaultRootDownloadLimit+1))
-	c.Assert(client.Init(s.rootKeys(c), 0), Equals, ErrMetaTooLarge{"root.json", defaultRootDownloadLimit + 1, defaultRootDownloadLimit})
-}
-
-func (s *ClientSuite) TestInitRootExpired(c *C) {
-	s.genKeyExpired(c, "targets")
-	c.Assert(s.repo.Snapshot(), IsNil)
-	c.Assert(s.repo.Timestamp(), IsNil)
-	c.Assert(s.repo.Commit(), IsNil)
-	s.syncRemote(c)
-	client := NewClient(MemoryLocalStore(), s.remote)
-	s.withMetaExpired(func() {
-		s.assertErrExpired(c, client.Init(s.rootKeys(c), 1), "root.json")
-	})
-}
-
 func (s *ClientSuite) TestInit(c *C) {
 	client := NewClient(MemoryLocalStore(), s.remote)
 
-	// check Init() returns keys.ErrInvalidThreshold with an invalid threshold
-	c.Assert(client.Init(s.rootKeys(c), 0), Equals, verify.ErrInvalidThreshold)
-
-	// check Init() returns signed.ErrRoleThreshold when not enough keys
-	c.Assert(client.Init(s.rootKeys(c), 2), Equals, ErrInsufficientKeys)
+	// check invalid json
+	c.Assert(client.InitLocal(make([]byte, 0)), NotNil)
+	rootJson := `{ "signatures": [], "signed": {"version": "wrongtype"}, "spec_version": "1.0.0", "version": 1}`
+	err := client.InitLocal([]byte(rootJson))
+	c.Assert(err.Error(), Matches, "json: cannot unmarshal string.*")
 
 	// check Update() returns ErrNoRootKeys when uninitialized
-	_, err := client.Update()
+	_, err = client.Update()
 	c.Assert(err, Equals, ErrNoRootKeys)
 
 	// check Update() does not return ErrNoRootKeys after initialization
-	c.Assert(client.Init(s.rootKeys(c), 1), IsNil)
+	c.Assert(client.InitLocal(s.rootMeta(c)), IsNil)
 	_, err = client.Update()
 	c.Assert(err, IsNil)
 }
@@ -489,6 +472,8 @@ func (s *ClientSuite) TestUpdateRoots(c *C) {
 		{"testdata/Published2Times_targets_keyrotated", nil, map[string]int64{"root": 2, "timestamp": 2, "snapshot": 2, "targets": 2}},
 		// timestamp role key rotation increase the timestamp.
 		{"testdata/Published2Times_timestamp_keyrotated", nil, map[string]int64{"root": 2, "timestamp": 2, "snapshot": 1, "targets": 1}},
+		//root file size > defaultRootDownloadLimit
+		{"testdata/Published2Times_roottoolarge", ErrMetaTooLarge{Name: "2.root.json", Size: defaultRootDownloadLimit + 1, MaxSize: defaultRootDownloadLimit}, map[string]int64{}},
 	}
 
 	for _, test := range tests {
@@ -1053,10 +1038,11 @@ func (s *ClientSuite) TestUpdateHTTP(c *C) {
 		remote, err := HTTPRemoteStore(fmt.Sprintf("http://%s/%s/repository", addr, dir), nil, nil)
 		c.Assert(err, IsNil)
 		client := NewClient(MemoryLocalStore(), remote)
-		rootKeys, err := repo.RootKeys()
+		rootMeta, err := repo.SignedMeta("root.json")
+		c.Assert(err, IsNil)
+		rootJsonBytes, err := json.Marshal(rootMeta)
 		c.Assert(err, IsNil)
-		c.Assert(rootKeys, HasLen, 1)
-		c.Assert(client.Init(rootKeys, 1), IsNil)
+		c.Assert(client.InitLocal(rootJsonBytes), IsNil)
 
 		// check update is ok
 		targets, err := client.Update()

diff --git a/client/testdata/Published2Times_roottoolarge/client/metadata/current/1.root.json b/client/testdata/Published2Times_roottoolarge/client/metadata/current/1.root.json
@@ -0,0 +1,87 @@
+{
+ "signatures": [
+  {
+   "keyid": "d4dab4b4d68b91665a6d0dac5b4e64677aa6d853fc787669168b4b4ba9822129",
+   "sig": "481a1bd10fedbe33e88e5f586a8726f558a5ec426bf65d2ba1c449fd1f69148da6af40f1ae18a5be63539dfbf076019db8b28f3f644f7fd4f003b7d06a4c2e09"
+  }
+ ],
+ "signed": {
+  "_type": "root",
+  "consistent_snapshot": true,
+  "expires": "2031-09-09T23:13:37Z",
+  "keys": {
+   "3a05831328273e4b821c3bbe1fed0c5332749d8e071675879af26a401a5c85ae": {
+    "keyid_hash_algorithms": [
+     "sha256",
+     "sha512"
+    ],
+    "keytype": "ed25519",
+    "keyval": {
+     "public": "6bac59b8d9e1aae02fae6fba6e7fe3fc9fe5b4a9fe98c3fca255d8c8ec3e5b35"
+    },
+    "scheme": "ed25519"
+   },
+   "77dfdca206c0fe1b8e55d67d21dd0e195a0998a9d2b56c6d3ee8f68d04c21e93": {
+    "keyid_hash_algorithms": [
+     "sha256",
+     "sha512"
+    ],
+    "keytype": "ed25519",
+    "keyval": {
+     "public": "6400d770c7c1bce4b3d59ce0079ed686e843b6500bbea77d869a1ae7df4565a1"
+    },
+    "scheme": "ed25519"
+   },
+   "d4dab4b4d68b91665a6d0dac5b4e64677aa6d853fc787669168b4b4ba9822129": {
+    "keyid_hash_algorithms": [
+     "sha256",
+     "sha512"
+    ],
+    "keytype": "ed25519",
+    "keyval": {
+     "public": "28bf74baa87ed923f8fa27e3292684f8ec4730ce0bdc65150ed58199206ce089"
+    },
+    "scheme": "ed25519"
+   },
+   "e4dae3872d28d29f7624a702bfd25f68453544d597229ee9e0a8569d1f940cf4": {
+    "keyid_hash_algorithms": [
+     "sha256",
+     "sha512"
+    ],
+    "keytype": "ed25519",
+    "keyval": {
+     "public": "e6ae9d3b67d7b3ce274130291dd90287f32b8fd72bfb4ac5430859ebd1c28a46"
+    },
+    "scheme": "ed25519"
+   }
+  },
+  "roles": {
+   "root": {
+    "keyids": [
+     "d4dab4b4d68b91665a6d0dac5b4e64677aa6d853fc787669168b4b4ba9822129"
+    ],
+    "threshold": 1
+   },
+   "snapshot": {
+    "keyids": [
+     "77dfdca206c0fe1b8e55d67d21dd0e195a0998a9d2b56c6d3ee8f68d04c21e93"
+    ],
+    "threshold": 1
+   },
+   "targets": {
+    "keyids": [
+     "e4dae3872d28d29f7624a702bfd25f68453544d597229ee9e0a8569d1f940cf4"
+    ],
+    "threshold": 1
+   },
+   "timestamp": {
+    "keyids": [
+     "3a05831328273e4b821c3bbe1fed0c5332749d8e071675879af26a401a5c85ae"
+    ],
+    "threshold": 1
+   }
+  },
+  "spec_version": "1.0.0",
+  "version": 1
+ }
+}
diff --git a/client/testdata/Published2Times_roottoolarge/client/metadata/current/1.snapshot.json b/client/testdata/Published2Times_roottoolarge/client/metadata/current/1.snapshot.json
@@ -0,0 +1,19 @@
+{
+ "signatures": [
+  {
+   "keyid": "77dfdca206c0fe1b8e55d67d21dd0e195a0998a9d2b56c6d3ee8f68d04c21e93",
+   "sig": "ecf4d79a88873efb223361e550b8fc35813ad7bf31d9769908d9495cfb930e03db889dc7419897031cadf39437c9f49b085f384fe1c18be3961704062365db0c"
+  }
+ ],
+ "signed": {
+  "_type": "snapshot",
+  "expires": "2031-09-09T23:13:37Z",
+  "meta": {
+   "targets.json": {
+    "version": 1
+   }
+  },
+  "spec_version": "1.0.0",
+  "version": 1
+ }
+}
diff --git a/client/testdata/Published2Times_roottoolarge/client/metadata/current/1.targets.json b/client/testdata/Published2Times_roottoolarge/client/metadata/current/1.targets.json
@@ -0,0 +1,19 @@
+{
+ "signatures": [
+  {
+   "keyid": "e4dae3872d28d29f7624a702bfd25f68453544d597229ee9e0a8569d1f940cf4",
+   "sig": "f2cee9e31bda3f88b25b0153bb48a6cb21237e4c41a34bbae95f152b56975085bc04c4978eed6be76a3ead23ff76a1259ff07e7b45b04fb51865c9601713c905"
+  }
+ ],
+ "signed": {
+  "_type": "targets",
+  "delegations": {
+   "keys": {},
+   "roles": []
+  },
+  "expires": "2031-09-09T23:13:37Z",
+  "spec_version": "1.0.0",
+  "targets": {},
+  "version": 1
+ }
+}
diff --git a/client/testdata/Published2Times_roottoolarge/client/metadata/current/1.timestamp.json b/client/testdata/Published2Times_roottoolarge/client/metadata/current/1.timestamp.json
@@ -0,0 +1,24 @@
+{
+ "signatures": [
+  {
+   "keyid": "3a05831328273e4b821c3bbe1fed0c5332749d8e071675879af26a401a5c85ae",
+   "sig": "35d1087c4874221bc772c8276bd77415d9366833aad4efc3926a8eda1de053843d2c114ac7448f08e3cfd802857c2ab2569d8be186b3cc36e65e458905f0e10e"
+  }
+ ],
+ "signed": {
+  "_type": "timestamp",
+  "expires": "2031-09-09T23:13:37Z",
+  "meta": {
+   "snapshot.json": {
+    "hashes": {
+     "sha256": "d62f650c8097fd4de9e3c8874ef15f7e10fdcc4c32f7a1818e972e8984b8da8a",
+     "sha512": "d9d0c38df27bc2ccc9523cb8d27623cb40b264053233e5e3261d83e2921c790b21accf9d427e36aa4c1939ddbccaaa5e006267f1cdd451606c514135d178dca5"
+    },
+    "length": 431,
+    "version": 1
+   }
+  },
+  "spec_version": "1.0.0",
+  "version": 1
+ }
+}
diff --git a/client/testdata/Published2Times_roottoolarge/client/metadata/current/root.json b/client/testdata/Published2Times_roottoolarge/client/metadata/current/root.json
@@ -0,0 +1,87 @@
+{
+ "signatures": [
+  {
+   "keyid": "d4dab4b4d68b91665a6d0dac5b4e64677aa6d853fc787669168b4b4ba9822129",
+   "sig": "481a1bd10fedbe33e88e5f586a8726f558a5ec426bf65d2ba1c449fd1f69148da6af40f1ae18a5be63539dfbf076019db8b28f3f644f7fd4f003b7d06a4c2e09"
+  }
+ ],
+ "signed": {
+  "_type": "root",
+  "consistent_snapshot": true,
+  "expires": "2031-09-09T23:13:37Z",
+  "keys": {
+   "3a05831328273e4b821c3bbe1fed0c5332749d8e071675879af26a401a5c85ae": {
+    "keyid_hash_algorithms": [
+     "sha256",
+     "sha512"
+    ],
+    "keytype": "ed25519",
+    "keyval": {
+     "public": "6bac59b8d9e1aae02fae6fba6e7fe3fc9fe5b4a9fe98c3fca255d8c8ec3e5b35"
+    },
+    "scheme": "ed25519"
+   },
+   "77dfdca206c0fe1b8e55d67d21dd0e195a0998a9d2b56c6d3ee8f68d04c21e93": {
+    "keyid_hash_algorithms": [
+     "sha256",
+     "sha512"
+    ],
+    "keytype": "ed25519",
+    "keyval": {
+     "public": "6400d770c7c1bce4b3d59ce0079ed686e843b6500bbea77d869a1ae7df4565a1"
+    },
+    "scheme": "ed25519"
+   },
+   "d4dab4b4d68b91665a6d0dac5b4e64677aa6d853fc787669168b4b4ba9822129": {
+    "keyid_hash_algorithms": [
+     "sha256",
+     "sha512"
+    ],
+    "keytype": "ed25519",
+    "keyval": {
+     "public": "28bf74baa87ed923f8fa27e3292684f8ec4730ce0bdc65150ed58199206ce089"
+    },
+    "scheme": "ed25519"
+   },
+   "e4dae3872d28d29f7624a702bfd25f68453544d597229ee9e0a8569d1f940cf4": {
+    "keyid_hash_algorithms": [
+     "sha256",
+     "sha512"
+    ],
+    "keytype": "ed25519",
+    "keyval": {
+     "public": "e6ae9d3b67d7b3ce274130291dd90287f32b8fd72bfb4ac5430859ebd1c28a46"
+    },
+    "scheme": "ed25519"
+   }
+  },
+  "roles": {
+   "root": {
+    "keyids": [
+     "d4dab4b4d68b91665a6d0dac5b4e64677aa6d853fc787669168b4b4ba9822129"
+    ],
+    "threshold": 1
+   },
+   "snapshot": {
+    "keyids": [
+     "77dfdca206c0fe1b8e55d67d21dd0e195a0998a9d2b56c6d3ee8f68d04c21e93"
+    ],
+    "threshold": 1
+   },
+   "targets": {
+    "keyids": [
+     "e4dae3872d28d29f7624a702bfd25f68453544d597229ee9e0a8569d1f940cf4"
+    ],
+    "threshold": 1
+   },
+   "timestamp": {
+    "keyids": [
+     "3a05831328273e4b821c3bbe1fed0c5332749d8e071675879af26a401a5c85ae"
+    ],
+    "threshold": 1
+   }
+  },
+  "spec_version": "1.0.0",
+  "version": 1
+ }
+}