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snap_asserts_test.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2015-2022 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package asserts_test
import (
"encoding/base64"
"os"
"path/filepath"
"regexp"
"sort"
"strings"
"time"
"golang.org/x/crypto/sha3"
. "gopkg.in/check.v1"
"github.com/snapcore/snapd/asserts"
"github.com/snapcore/snapd/asserts/assertstest"
)
var (
_ = Suite(&snapDeclSuite{})
_ = Suite(&snapFileDigestSuite{})
_ = Suite(&snapBuildSuite{})
_ = Suite(&snapRevSuite{})
_ = Suite(&validationSuite{})
_ = Suite(&baseDeclSuite{})
_ = Suite(&snapDevSuite{})
)
type snapDeclSuite struct {
ts time.Time
tsLine string
}
type emptyAttrerObject struct{}
func (o emptyAttrerObject) Lookup(path string) (interface{}, bool) {
return nil, false
}
func (sds *snapDeclSuite) SetUpSuite(c *C) {
sds.ts = time.Now().Truncate(time.Second).UTC()
sds.tsLine = "timestamp: " + sds.ts.Format(time.RFC3339) + "\n"
}
func (sds *snapDeclSuite) TestDecodeOK(c *C) {
encoded := "type: snap-declaration\n" +
"authority-id: canonical\n" +
"series: 16\n" +
"snap-id: snap-id-1\n" +
"snap-name: first\n" +
"publisher-id: dev-id1\n" +
"refresh-control:\n - foo\n - bar\n" +
"auto-aliases:\n - cmd1\n - cmd_2\n - Cmd-3\n - CMD.4\n" +
sds.tsLine +
`aliases:
-
name: cmd1
target: cmd-1
-
name: cmd_2
target: cmd-2
-
name: Cmd-3
target: cmd-3
-
name: CMD.4
target: cmd-4
` +
"body-length: 0\n" +
"sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij" +
"\n\n" +
"AXNpZw=="
a, err := asserts.Decode([]byte(encoded))
c.Assert(err, IsNil)
c.Check(a.Type(), Equals, asserts.SnapDeclarationType)
snapDecl := a.(*asserts.SnapDeclaration)
c.Check(snapDecl.AuthorityID(), Equals, "canonical")
c.Check(snapDecl.Timestamp(), Equals, sds.ts)
c.Check(snapDecl.Series(), Equals, "16")
c.Check(snapDecl.SnapID(), Equals, "snap-id-1")
c.Check(snapDecl.SnapName(), Equals, "first")
c.Check(snapDecl.PublisherID(), Equals, "dev-id1")
c.Check(snapDecl.RefreshControl(), DeepEquals, []string{"foo", "bar"})
c.Check(snapDecl.AutoAliases(), DeepEquals, []string{"cmd1", "cmd_2", "Cmd-3", "CMD.4"})
c.Check(snapDecl.Aliases(), DeepEquals, map[string]string{
"cmd1": "cmd-1",
"cmd_2": "cmd-2",
"Cmd-3": "cmd-3",
"CMD.4": "cmd-4",
})
c.Check(snapDecl.RevisionAuthority(""), IsNil)
}
func (sds *snapDeclSuite) TestDecodeOKWithRevisionAuthority(c *C) {
encoded := "type: snap-declaration\n" +
"authority-id: canonical\n" +
"series: 16\n" +
"snap-id: snap-id-1\n" +
"snap-name: first\n" +
"publisher-id: dev-id1\n" +
"refresh-control:\n - foo\n - bar\n" +
sds.tsLine +
`revision-authority:
-
account-id: delegated-acc-id
provenance:
- prov1
- prov2
min-revision: 100
max-revision: 1000000
on-store:
- store1
` +
"body-length: 0\n" +
"sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij" +
"\n\n" +
"AXNpZw=="
a, err := asserts.Decode([]byte(encoded))
c.Assert(err, IsNil)
c.Check(a.Type(), Equals, asserts.SnapDeclarationType)
snapDecl := a.(*asserts.SnapDeclaration)
c.Check(snapDecl.AuthorityID(), Equals, "canonical")
c.Check(snapDecl.Timestamp(), Equals, sds.ts)
c.Check(snapDecl.Series(), Equals, "16")
c.Check(snapDecl.SnapID(), Equals, "snap-id-1")
c.Check(snapDecl.SnapName(), Equals, "first")
c.Check(snapDecl.PublisherID(), Equals, "dev-id1")
c.Check(snapDecl.RefreshControl(), DeepEquals, []string{"foo", "bar"})
ras := snapDecl.RevisionAuthority("prov1")
c.Check(ras, DeepEquals, []*asserts.RevisionAuthority{
{
AccountID: "delegated-acc-id",
Provenance: []string{"prov1", "prov2"},
MinRevision: 100,
MaxRevision: 1000000,
DeviceScope: &asserts.DeviceScopeConstraint{
Store: []string{"store1"},
},
},
})
}
func (sds *snapDeclSuite) TestDecodeOKWithRevisionAuthorityDefaults(c *C) {
initial := "type: snap-declaration\n" +
"authority-id: canonical\n" +
"series: 16\n" +
"snap-id: snap-id-1\n" +
"snap-name: first\n" +
"publisher-id: dev-id1\n" +
"refresh-control:\n - foo\n - bar\n" +
sds.tsLine +
`revision-authority:
-
account-id: delegated-acc-id
provenance:
- prov1
- prov2
min-revision: 100
` +
"body-length: 0\n" +
"sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij" +
"\n\n" +
"AXNpZw=="
tests := []struct {
original, replaced string
revAuth asserts.RevisionAuthority
}{
{"min", "min", asserts.RevisionAuthority{
AccountID: "delegated-acc-id",
Provenance: []string{"prov1", "prov2"},
MinRevision: 100,
}},
{"min", "max", asserts.RevisionAuthority{
AccountID: "delegated-acc-id",
Provenance: []string{"prov1", "prov2"},
MinRevision: 1,
MaxRevision: 100,
}},
{" min-revision: 100\n", "", asserts.RevisionAuthority{
AccountID: "delegated-acc-id",
Provenance: []string{"prov1", "prov2"},
MinRevision: 1,
}},
}
for _, t := range tests {
encoded := strings.Replace(initial, t.original, t.replaced, 1)
a, err := asserts.Decode([]byte(encoded))
c.Assert(err, IsNil)
snapDecl := a.(*asserts.SnapDeclaration)
ras := snapDecl.RevisionAuthority("prov2")
c.Check(ras, HasLen, 1)
c.Check(*ras[0], DeepEquals, t.revAuth)
}
}
func (sds *snapDeclSuite) TestEmptySnapName(c *C) {
encoded := "type: snap-declaration\n" +
"authority-id: canonical\n" +
"series: 16\n" +
"snap-id: snap-id-1\n" +
"snap-name: \n" +
"publisher-id: dev-id1\n" +
sds.tsLine +
"body-length: 0\n" +
"sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij" +
"\n\n" +
"AXNpZw=="
a, err := asserts.Decode([]byte(encoded))
c.Assert(err, IsNil)
snapDecl := a.(*asserts.SnapDeclaration)
c.Check(snapDecl.SnapName(), Equals, "")
}
func (sds *snapDeclSuite) TestMissingRefreshControlAutoAliases(c *C) {
encoded := "type: snap-declaration\n" +
"authority-id: canonical\n" +
"series: 16\n" +
"snap-id: snap-id-1\n" +
"snap-name: \n" +
"publisher-id: dev-id1\n" +
sds.tsLine +
"body-length: 0\n" +
"sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij" +
"\n\n" +
"AXNpZw=="
a, err := asserts.Decode([]byte(encoded))
c.Assert(err, IsNil)
snapDecl := a.(*asserts.SnapDeclaration)
c.Check(snapDecl.RefreshControl(), HasLen, 0)
c.Check(snapDecl.AutoAliases(), HasLen, 0)
}
const (
snapDeclErrPrefix = "assertion snap-declaration: "
)
func (sds *snapDeclSuite) TestDecodeInvalid(c *C) {
aliases := `aliases:
-
name: cmd_1
target: cmd-1
`
encoded := "type: snap-declaration\n" +
"authority-id: canonical\n" +
"series: 16\n" +
"snap-id: snap-id-1\n" +
"snap-name: first\n" +
"publisher-id: dev-id1\n" +
"refresh-control:\n - foo\n - bar\n" +
"auto-aliases:\n - cmd1\n - cmd2\n" +
aliases +
"plugs:\n interface1: true\n" +
"slots:\n interface2: true\n" +
sds.tsLine +
"body-length: 0\n" +
"sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij" +
"\n\n" +
"AXNpZw=="
invalidTests := []struct{ original, invalid, expectedErr string }{
{"series: 16\n", "", `"series" header is mandatory`},
{"series: 16\n", "series: \n", `"series" header should not be empty`},
{"snap-id: snap-id-1\n", "", `"snap-id" header is mandatory`},
{"snap-id: snap-id-1\n", "snap-id: \n", `"snap-id" header should not be empty`},
{"snap-name: first\n", "", `"snap-name" header is mandatory`},
{"publisher-id: dev-id1\n", "", `"publisher-id" header is mandatory`},
{"publisher-id: dev-id1\n", "publisher-id: \n", `"publisher-id" header should not be empty`},
{"refresh-control:\n - foo\n - bar\n", "refresh-control: foo\n", `"refresh-control" header must be a list of strings`},
{"refresh-control:\n - foo\n - bar\n", "refresh-control:\n -\n - nested\n", `"refresh-control" header must be a list of strings`},
{"plugs:\n interface1: true\n", "plugs: \n", `"plugs" header must be a map`},
{"plugs:\n interface1: true\n", "plugs:\n intf1:\n foo: bar\n", `plug rule for interface "intf1" must specify at least one of.*`},
{"slots:\n interface2: true\n", "slots: \n", `"slots" header must be a map`},
{"slots:\n interface2: true\n", "slots:\n intf1:\n foo: bar\n", `slot rule for interface "intf1" must specify at least one of.*`},
{"auto-aliases:\n - cmd1\n - cmd2\n", "auto-aliases: cmd0\n", `"auto-aliases" header must be a list of strings`},
{"auto-aliases:\n - cmd1\n - cmd2\n", "auto-aliases:\n -\n - nested\n", `"auto-aliases" header must be a list of strings`},
{"auto-aliases:\n - cmd1\n - cmd2\n", "auto-aliases:\n - _cmd-1\n - cmd2\n", `"auto-aliases" header contains an invalid element: "_cmd-1"`},
{aliases, "aliases: cmd0\n", `"aliases" header must be a list of alias maps`},
{aliases, "aliases:\n - cmd1\n", `"aliases" header must be a list of alias maps`},
{"name: cmd_1\n", "name: .cmd1\n", `"name" in "aliases" item 1 contains invalid characters: ".cmd1"`},
{"target: cmd-1\n", "target: -cmd-1\n", `"target" for alias "cmd_1" contains invalid characters: "-cmd-1"`},
{aliases, aliases + " -\n name: cmd_1\n target: foo\n", `duplicated definition in "aliases" for alias "cmd_1"`},
{sds.tsLine, "", `"timestamp" header is mandatory`},
{sds.tsLine, "timestamp: \n", `"timestamp" header should not be empty`},
{sds.tsLine, "timestamp: 12:30\n", `"timestamp" header is not a RFC3339 date: .*`},
}
for _, test := range invalidTests {
invalid := strings.Replace(encoded, test.original, test.invalid, 1)
_, err := asserts.Decode([]byte(invalid))
c.Check(err, ErrorMatches, snapDeclErrPrefix+test.expectedErr)
}
}
func (sds *snapDeclSuite) TestDecodeInvalidWithRevisionAuthority(c *C) {
const revAuth = `revision-authority:
-
account-id: delegated-acc-id
provenance:
- prov1
- prov2
min-revision: 100
max-revision: 1000000
on-store:
- store1
`
encoded := "type: snap-declaration\n" +
"authority-id: canonical\n" +
"series: 16\n" +
"snap-id: snap-id-1\n" +
"snap-name: first\n" +
"publisher-id: dev-id1\n" +
"refresh-control:\n - foo\n - bar\n" +
sds.tsLine +
revAuth +
"body-length: 0\n" +
"sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij" +
"\n\n" +
"AXNpZw=="
invalidTests := []struct{ original, invalid, expectedErr string }{
{revAuth, "revision-authority: x\n", `revision-authority stanza must be a list of maps`},
{revAuth, "revision-authority:\n - x\n", `revision-authority stanza must be a list of maps`},
{" account-id: delegated-acc-id\n", "", `"account-id" in revision authority is mandatory`},
{"account-id: delegated-acc-id\n", "account-id: *\n", `"account-id" in revision authority contains invalid characters: "\*"`},
{" provenance:\n - prov1\n - prov2\n", " provenance: \n", `provenance in revision authority must be a list of strings`},
{"prov2\n", "*\n", `provenance in revision authority contains an invalid element: "\*"`},
{" min-revision: 100\n", " min-revision: 0\n", `"min-revision" in revision authority must be >=1: 0`},
{" max-revision: 1000000\n", " max-revision: 0\n", `"max-revision" in revision authority must be >=1: 0`},
{" max-revision: 1000000\n", " max-revision: 10\n", `optional max-revision cannot be less than min-revision in revision-authority`},
{" on-store:\n - store1\n", " on-store: foo", `on-store in revision-authority must be a list of strings`},
}
for _, test := range invalidTests {
invalid := strings.Replace(encoded, test.original, test.invalid, 1)
_, err := asserts.Decode([]byte(invalid))
c.Check(err, ErrorMatches, snapDeclErrPrefix+test.expectedErr)
}
}
func (sds *snapDeclSuite) TestDecodePlugsAndSlots(c *C) {
encoded := `type: snap-declaration
format: 1
authority-id: canonical
series: 16
snap-id: snap-id-1
snap-name: first
publisher-id: dev-id1
plugs:
interface1:
deny-installation: false
allow-auto-connection:
slot-snap-type:
- app
slot-publisher-id:
- acme
slot-attributes:
a1: /foo/.*
plug-attributes:
b1: B1
deny-auto-connection:
slot-attributes:
a1: !A1
plug-attributes:
b1: !B1
interface2:
allow-installation: true
allow-connection:
plug-attributes:
a2: A2
slot-attributes:
b2: B2
deny-connection:
slot-snap-id:
- snapidsnapidsnapidsnapidsnapid01
- snapidsnapidsnapidsnapidsnapid02
plug-attributes:
a2: !A2
slot-attributes:
b2: !B2
slots:
interface3:
deny-installation: false
allow-auto-connection:
plug-snap-type:
- app
plug-publisher-id:
- acme
slot-attributes:
c1: /foo/.*
plug-attributes:
d1: C1
deny-auto-connection:
slot-attributes:
c1: !C1
plug-attributes:
d1: !D1
interface4:
allow-connection:
plug-attributes:
c2: C2
slot-attributes:
d2: D2
deny-connection:
plug-snap-id:
- snapidsnapidsnapidsnapidsnapid01
- snapidsnapidsnapidsnapidsnapid02
plug-attributes:
c2: !D2
slot-attributes:
d2: !D2
allow-installation:
slot-snap-type:
- app
slot-attributes:
e1: E1
TSLINE
body-length: 0
sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij
AXNpZw==`
encoded = strings.Replace(encoded, "TSLINE\n", sds.tsLine, 1)
a, err := asserts.Decode([]byte(encoded))
c.Assert(err, IsNil)
c.Check(a.SupportedFormat(), Equals, true)
snapDecl := a.(*asserts.SnapDeclaration)
c.Check(snapDecl.Series(), Equals, "16")
c.Check(snapDecl.SnapID(), Equals, "snap-id-1")
c.Check(snapDecl.PlugRule("interfaceX"), IsNil)
c.Check(snapDecl.SlotRule("interfaceX"), IsNil)
plugRule1 := snapDecl.PlugRule("interface1")
c.Assert(plugRule1, NotNil)
c.Assert(plugRule1.DenyInstallation, HasLen, 1)
c.Check(plugRule1.DenyInstallation[0].PlugAttributes, Equals, asserts.NeverMatchAttributes)
c.Assert(plugRule1.AllowAutoConnection, HasLen, 1)
plug := emptyAttrerObject{}
slot := emptyAttrerObject{}
c.Check(plugRule1.AllowAutoConnection[0].SlotAttributes.Check(slot, nil), ErrorMatches, `attribute "a1".*`)
c.Check(plugRule1.AllowAutoConnection[0].PlugAttributes.Check(plug, nil), ErrorMatches, `attribute "b1".*`)
c.Check(plugRule1.AllowAutoConnection[0].SlotSnapTypes, DeepEquals, []string{"app"})
c.Check(plugRule1.AllowAutoConnection[0].SlotPublisherIDs, DeepEquals, []string{"acme"})
c.Assert(plugRule1.DenyAutoConnection, HasLen, 1)
c.Check(plugRule1.DenyAutoConnection[0].SlotAttributes.Check(slot, nil), ErrorMatches, `attribute "a1".*`)
c.Check(plugRule1.DenyAutoConnection[0].PlugAttributes.Check(plug, nil), ErrorMatches, `attribute "b1".*`)
plugRule2 := snapDecl.PlugRule("interface2")
c.Assert(plugRule2, NotNil)
c.Assert(plugRule2.AllowInstallation, HasLen, 1)
c.Check(plugRule2.AllowInstallation[0].PlugAttributes, Equals, asserts.AlwaysMatchAttributes)
c.Assert(plugRule2.AllowConnection, HasLen, 1)
c.Check(plugRule2.AllowConnection[0].PlugAttributes.Check(plug, nil), ErrorMatches, `attribute "a2".*`)
c.Check(plugRule2.AllowConnection[0].SlotAttributes.Check(slot, nil), ErrorMatches, `attribute "b2".*`)
c.Assert(plugRule2.DenyConnection, HasLen, 1)
c.Check(plugRule2.DenyConnection[0].PlugAttributes.Check(plug, nil), ErrorMatches, `attribute "a2".*`)
c.Check(plugRule2.DenyConnection[0].SlotAttributes.Check(slot, nil), ErrorMatches, `attribute "b2".*`)
c.Check(plugRule2.DenyConnection[0].SlotSnapIDs, DeepEquals, []string{"snapidsnapidsnapidsnapidsnapid01", "snapidsnapidsnapidsnapidsnapid02"})
slotRule3 := snapDecl.SlotRule("interface3")
c.Assert(slotRule3, NotNil)
c.Assert(slotRule3.DenyInstallation, HasLen, 1)
c.Check(slotRule3.DenyInstallation[0].SlotAttributes, Equals, asserts.NeverMatchAttributes)
c.Assert(slotRule3.AllowAutoConnection, HasLen, 1)
c.Check(slotRule3.AllowAutoConnection[0].SlotAttributes.Check(slot, nil), ErrorMatches, `attribute "c1".*`)
c.Check(slotRule3.AllowAutoConnection[0].PlugAttributes.Check(plug, nil), ErrorMatches, `attribute "d1".*`)
c.Check(slotRule3.AllowAutoConnection[0].PlugSnapTypes, DeepEquals, []string{"app"})
c.Check(slotRule3.AllowAutoConnection[0].PlugPublisherIDs, DeepEquals, []string{"acme"})
c.Assert(slotRule3.DenyAutoConnection, HasLen, 1)
c.Check(slotRule3.DenyAutoConnection[0].SlotAttributes.Check(slot, nil), ErrorMatches, `attribute "c1".*`)
c.Check(slotRule3.DenyAutoConnection[0].PlugAttributes.Check(plug, nil), ErrorMatches, `attribute "d1".*`)
slotRule4 := snapDecl.SlotRule("interface4")
c.Assert(slotRule4, NotNil)
c.Assert(slotRule4.AllowAutoConnection, HasLen, 1)
c.Check(slotRule4.AllowConnection[0].PlugAttributes.Check(plug, nil), ErrorMatches, `attribute "c2".*`)
c.Check(slotRule4.AllowConnection[0].SlotAttributes.Check(slot, nil), ErrorMatches, `attribute "d2".*`)
c.Assert(slotRule4.DenyAutoConnection, HasLen, 1)
c.Check(slotRule4.DenyConnection[0].PlugAttributes.Check(plug, nil), ErrorMatches, `attribute "c2".*`)
c.Check(slotRule4.DenyConnection[0].SlotAttributes.Check(slot, nil), ErrorMatches, `attribute "d2".*`)
c.Check(slotRule4.DenyConnection[0].PlugSnapIDs, DeepEquals, []string{"snapidsnapidsnapidsnapidsnapid01", "snapidsnapidsnapidsnapidsnapid02"})
c.Assert(slotRule4.AllowInstallation, HasLen, 1)
c.Check(slotRule4.AllowInstallation[0].SlotAttributes.Check(slot, nil), ErrorMatches, `attribute "e1".*`)
c.Check(slotRule4.AllowInstallation[0].SlotSnapTypes, DeepEquals, []string{"app"})
}
func (sds *snapDeclSuite) TestSuggestedFormat(c *C) {
fmtnum, err := asserts.SuggestFormat(asserts.SnapDeclarationType, nil, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 0)
headers := map[string]interface{}{
"plugs": map[string]interface{}{
"interface1": "true",
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 1)
headers = map[string]interface{}{
"slots": map[string]interface{}{
"interface2": "true",
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 1)
headers = map[string]interface{}{
"plugs": map[string]interface{}{
"interface3": map[string]interface{}{
"allow-auto-connection": map[string]interface{}{
"plug-attributes": map[string]interface{}{
"x": "$SLOT(x)",
},
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 2)
headers = map[string]interface{}{
"slots": map[string]interface{}{
"interface3": map[string]interface{}{
"allow-auto-connection": map[string]interface{}{
"plug-attributes": map[string]interface{}{
"x": "$SLOT(x)",
},
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 2)
// combinations with on-store/on-brand/on-model => format 3
for _, side := range []string{"plugs", "slots"} {
for k, vals := range deviceScopeConstrs {
headers := map[string]interface{}{
side: map[string]interface{}{
"interface3": map[string]interface{}{
"allow-installation": map[string]interface{}{
k: vals,
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 3)
for _, conn := range []string{"connection", "auto-connection"} {
headers = map[string]interface{}{
side: map[string]interface{}{
"interface3": map[string]interface{}{
"allow-" + conn: map[string]interface{}{
k: vals,
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 3)
}
}
}
// higher format features win
headers = map[string]interface{}{
"plugs": map[string]interface{}{
"interface3": map[string]interface{}{
"allow-auto-connection": map[string]interface{}{
"on-store": []interface{}{"store"},
},
},
},
"slots": map[string]interface{}{
"interface4": map[string]interface{}{
"allow-auto-connection": map[string]interface{}{
"plug-attributes": map[string]interface{}{
"x": "$SLOT(x)",
},
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 3)
headers = map[string]interface{}{
"plugs": map[string]interface{}{
"interface4": map[string]interface{}{
"allow-auto-connection": map[string]interface{}{
"slot-attributes": map[string]interface{}{
"x": "$SLOT(x)",
},
},
},
},
"slots": map[string]interface{}{
"interface3": map[string]interface{}{
"allow-auto-connection": map[string]interface{}{
"on-store": []interface{}{"store"},
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 3)
// errors
headers = map[string]interface{}{
"plugs": "what",
}
_, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, ErrorMatches, `assertion snap-declaration: "plugs" header must be a map`)
headers = map[string]interface{}{
"slots": "what",
}
_, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, ErrorMatches, `assertion snap-declaration: "slots" header must be a map`)
// plug-names/slot-names => format 4
for _, sidePrefix := range []string{"plug", "slot"} {
side := sidePrefix + "s"
headers := map[string]interface{}{
side: map[string]interface{}{
"interface3": map[string]interface{}{
"allow-installation": map[string]interface{}{
sidePrefix + "-names": []interface{}{"foo"},
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 4)
for _, conn := range []string{"connection", "auto-connection"} {
headers = map[string]interface{}{
side: map[string]interface{}{
"interface3": map[string]interface{}{
"allow-" + conn: map[string]interface{}{
sidePrefix + "-names": []interface{}{"foo"},
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 4)
headers = map[string]interface{}{
side: map[string]interface{}{
"interface3": map[string]interface{}{
"allow-" + conn: map[string]interface{}{
"plug-names": []interface{}{"Pfoo"},
"slot-names": []interface{}{"Sfoo"},
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 4)
}
}
// alt matcher (so far unused) => format 5
for _, sidePrefix := range []string{"plug", "slot"} {
headers = map[string]interface{}{
sidePrefix + "s": map[string]interface{}{
"interface5": map[string]interface{}{
"allow-auto-connection": map[string]interface{}{
sidePrefix + "-attributes": map[string]interface{}{
"x": []interface{}{"alt1", "alt2"}, // alt matcher
},
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 5)
}
for _, cstr := range []string{"$PLUG_PUBLISHER_ID", "$SLOT_PUBLISHER_ID"} {
for _, sidePrefix := range []string{"plug", "slot"} {
headers = map[string]interface{}{
sidePrefix + "s": map[string]interface{}{
"interface6": map[string]interface{}{
"allow-auto-connection": map[string]interface{}{
sidePrefix + "-attributes": map[string]interface{}{
"x": cstr,
},
},
},
},
}
fmtnum, err = asserts.SuggestFormat(asserts.SnapDeclarationType, headers, nil)
c.Assert(err, IsNil)
c.Check(fmtnum, Equals, 6)
}
}
}
func prereqDevAccount(c *C, storeDB assertstest.SignerDB, db *asserts.Database) {
dev1Acct := assertstest.NewAccount(storeDB, "developer1", map[string]interface{}{
"account-id": "dev-id1",
}, "")
err := db.Add(dev1Acct)
c.Assert(err, IsNil)
}
func (sds *snapDeclSuite) TestSnapDeclarationCheck(c *C) {
storeDB, db := makeStoreAndCheckDB(c)
prereqDevAccount(c, storeDB, db)
headers := map[string]interface{}{
"series": "16",
"snap-id": "snap-id-1",
"snap-name": "foo",
"publisher-id": "dev-id1",
"timestamp": time.Now().Format(time.RFC3339),
}
snapDecl, err := storeDB.Sign(asserts.SnapDeclarationType, headers, nil, "")
c.Assert(err, IsNil)
err = db.Check(snapDecl)
c.Assert(err, IsNil)
}
func (sds *snapDeclSuite) TestSnapDeclarationCheckUntrustedAuthority(c *C) {
storeDB, db := makeStoreAndCheckDB(c)
otherDB := setup3rdPartySigning(c, "other", storeDB, db)
headers := map[string]interface{}{
"series": "16",
"snap-id": "snap-id-1",
"snap-name": "foo",
"publisher-id": "dev-id1",
"timestamp": time.Now().Format(time.RFC3339),
}
snapDecl, err := otherDB.Sign(asserts.SnapDeclarationType, headers, nil, "")
c.Assert(err, IsNil)
err = db.Check(snapDecl)
c.Assert(err, ErrorMatches, `snap-declaration assertion for "foo" \(id "snap-id-1"\) is not signed by a directly trusted authority:.*`)
}
func (sds *snapDeclSuite) TestSnapDeclarationCheckMissingPublisherAccount(c *C) {
storeDB, db := makeStoreAndCheckDB(c)
headers := map[string]interface{}{
"series": "16",
"snap-id": "snap-id-1",
"snap-name": "foo",
"publisher-id": "dev-id1",
"timestamp": time.Now().Format(time.RFC3339),
}
snapDecl, err := storeDB.Sign(asserts.SnapDeclarationType, headers, nil, "")
c.Assert(err, IsNil)
err = db.Check(snapDecl)
c.Assert(err, ErrorMatches, `snap-declaration assertion for "foo" \(id "snap-id-1"\) does not have a matching account assertion for the publisher "dev-id1"`)
}
type snapFileDigestSuite struct{}
func (s *snapFileDigestSuite) TestSnapFileSHA3_384(c *C) {
exData := []byte("hashmeplease")
tempdir := c.MkDir()
snapFn := filepath.Join(tempdir, "ex.snap")
err := os.WriteFile(snapFn, exData, 0644)
c.Assert(err, IsNil)
encDgst, size, err := asserts.SnapFileSHA3_384(snapFn)
c.Assert(err, IsNil)
c.Check(size, Equals, uint64(len(exData)))
h3_384 := sha3.Sum384(exData)
expected := base64.RawURLEncoding.EncodeToString(h3_384[:])
c.Check(encDgst, DeepEquals, expected)
}
type snapBuildSuite struct {
ts time.Time
tsLine string
}
func (sds *snapDeclSuite) TestPrerequisites(c *C) {
encoded := "type: snap-declaration\n" +
"authority-id: canonical\n" +
"series: 16\n" +
"snap-id: snap-id-1\n" +
"snap-name: first\n" +
"publisher-id: dev-id1\n" +
sds.tsLine +
"body-length: 0\n" +
"sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij" +
"\n\n" +
"AXNpZw=="
a, err := asserts.Decode([]byte(encoded))
c.Assert(err, IsNil)
prereqs := a.Prerequisites()
c.Assert(prereqs, HasLen, 1)
c.Check(prereqs[0], DeepEquals, &asserts.Ref{
Type: asserts.AccountType,
PrimaryKey: []string{"dev-id1"},
})
}
func (sbs *snapBuildSuite) SetUpSuite(c *C) {
sbs.ts = time.Now().Truncate(time.Second).UTC()
sbs.tsLine = "timestamp: " + sbs.ts.Format(time.RFC3339) + "\n"
}
const (
blobSHA3_384 = "QlqR0uAWEAWF5Nwnzj5kqmmwFslYPu1IL16MKtLKhwhv0kpBv5wKZ_axf_nf_2cL"
hexSHA256 = "e2926364a8b1242d92fb1b56081e1ddb86eba35411961252a103a1c083c2be6d"
)
func (sbs *snapBuildSuite) TestDecodeOK(c *C) {
encoded := "type: snap-build\n" +
"authority-id: dev-id1\n" +
"snap-sha3-384: " + blobSHA3_384 + "\n" +
"grade: stable\n" +
"snap-id: snap-id-1\n" +
"snap-size: 10000\n" +
sbs.tsLine +
"body-length: 0\n" +
"sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij" +
"\n\n" +
"AXNpZw=="
a, err := asserts.Decode([]byte(encoded))
c.Assert(err, IsNil)
c.Check(a.Type(), Equals, asserts.SnapBuildType)
snapBuild := a.(*asserts.SnapBuild)
c.Check(snapBuild.AuthorityID(), Equals, "dev-id1")
c.Check(snapBuild.Timestamp(), Equals, sbs.ts)
c.Check(snapBuild.SnapID(), Equals, "snap-id-1")
c.Check(snapBuild.SnapSHA3_384(), Equals, blobSHA3_384)
c.Check(snapBuild.SnapSize(), Equals, uint64(10000))
c.Check(snapBuild.Grade(), Equals, "stable")
}
const (
snapBuildErrPrefix = "assertion snap-build: "
)
func (sbs *snapBuildSuite) TestDecodeInvalid(c *C) {
digestHdr := "snap-sha3-384: " + blobSHA3_384 + "\n"
encoded := "type: snap-build\n" +
"authority-id: dev-id1\n" +
digestHdr +
"grade: stable\n" +
"snap-id: snap-id-1\n" +
"snap-size: 10000\n" +
sbs.tsLine +
"body-length: 0\n" +
"sign-key-sha3-384: Jv8_JiHiIzJVcO9M55pPdqSDWUvuhfDIBJUS-3VW7F_idjix7Ffn5qMxB21ZQuij" +
"\n\n" +
"AXNpZw=="
invalidTests := []struct{ original, invalid, expectedErr string }{
{"snap-id: snap-id-1\n", "", `"snap-id" header is mandatory`},
{"snap-id: snap-id-1\n", "snap-id: \n", `"snap-id" header should not be empty`},
{digestHdr, "", `"snap-sha3-384" header is mandatory`},
{digestHdr, "snap-sha3-384: \n", `"snap-sha3-384" header should not be empty`},
{digestHdr, "snap-sha3-384: #\n", `"snap-sha3-384" header cannot be decoded:.*`},
{"snap-size: 10000\n", "", `"snap-size" header is mandatory`},
{"snap-size: 10000\n", "snap-size: -1\n", `"snap-size" header is not an unsigned integer: -1`},
{"snap-size: 10000\n", "snap-size: zzz\n", `"snap-size" header is not an unsigned integer: zzz`},
{"snap-size: 10000\n", "snap-size: 010\n", `"snap-size" header has invalid prefix zeros: 010`},
{"snap-size: 10000\n", "snap-size: 99999999999999999999\n", `"snap-size" header is out of range: 99999999999999999999`},
{"grade: stable\n", "", `"grade" header is mandatory`},
{"grade: stable\n", "grade: \n", `"grade" header should not be empty`},
{sbs.tsLine, "", `"timestamp" header is mandatory`},
{sbs.tsLine, "timestamp: \n", `"timestamp" header should not be empty`},
{sbs.tsLine, "timestamp: 12:30\n", `"timestamp" header is not a RFC3339 date: .*`},
}
for _, test := range invalidTests {
invalid := strings.Replace(encoded, test.original, test.invalid, 1)
_, err := asserts.Decode([]byte(invalid))
c.Check(err, ErrorMatches, snapBuildErrPrefix+test.expectedErr)
}
}
func makeStoreAndCheckDB(c *C) (store *assertstest.StoreStack, checkDB *asserts.Database) {
store = assertstest.NewStoreStack("canonical", nil)
cfg := &asserts.DatabaseConfig{
Backstore: asserts.NewMemoryBackstore(),
Trusted: store.Trusted,
OtherPredefined: store.Generic,
}
checkDB, err := asserts.OpenDatabase(cfg)
c.Assert(err, IsNil)
// add store key
err = checkDB.Add(store.StoreAccountKey(""))
c.Assert(err, IsNil)
// add generic key
err = checkDB.Add(store.GenericKey)
c.Assert(err, IsNil)
return store, checkDB
}
func setup3rdPartySigning(c *C, username string, storeDB assertstest.SignerDB, checkDB *asserts.Database) (signingDB *assertstest.SigningDB) {
privKey := testPrivKey2
acct := assertstest.NewAccount(storeDB, username, map[string]interface{}{
"account-id": username,
}, "")
accKey := assertstest.NewAccountKey(storeDB, acct, nil, privKey.PublicKey(), "")
err := checkDB.Add(acct)
c.Assert(err, IsNil)
err = checkDB.Add(accKey)
c.Assert(err, IsNil)
return assertstest.NewSigningDB(acct.AccountID(), privKey)
}
func (sbs *snapBuildSuite) TestSnapBuildCheck(c *C) {
storeDB, db := makeStoreAndCheckDB(c)
devDB := setup3rdPartySigning(c, "devel1", storeDB, db)
headers := map[string]interface{}{
"authority-id": "devel1",
"snap-sha3-384": blobSHA3_384,
"snap-id": "snap-id-1",
"grade": "devel",
"snap-size": "1025",
"timestamp": time.Now().Format(time.RFC3339),
}
snapBuild, err := devDB.Sign(asserts.SnapBuildType, headers, nil, "")
c.Assert(err, IsNil)
err = db.Check(snapBuild)
c.Assert(err, IsNil)
}
func (sbs *snapBuildSuite) TestSnapBuildCheckInconsistentTimestamp(c *C) {
storeDB, db := makeStoreAndCheckDB(c)
devDB := setup3rdPartySigning(c, "devel1", storeDB, db)
headers := map[string]interface{}{
"snap-sha3-384": blobSHA3_384,
"snap-id": "snap-id-1",
"grade": "devel",
"snap-size": "1025",
"timestamp": "2013-01-01T14:00:00Z",
}
snapBuild, err := devDB.Sign(asserts.SnapBuildType, headers, nil, "")
c.Assert(err, IsNil)
err = db.Check(snapBuild)
c.Assert(err, ErrorMatches, `snap-build assertion timestamp "2013-01-01 14:00:00 \+0000 UTC" outside of signing key validity \(key valid since.*\)`)
}