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Copy pathifacedecls_test.go
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ifacedecls_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 (
"fmt"
"regexp"
"strings"
. "gopkg.in/check.v1"
"gopkg.in/yaml.v2"
"github.com/snapcore/snapd/asserts"
"github.com/snapcore/snapd/snap"
"github.com/snapcore/snapd/testutil"
)
var (
_ = Suite(&attrConstraintsSuite{})
_ = Suite(&nameConstraintsSuite{})
_ = Suite(&plugSlotRulesSuite{})
)
type attrConstraintsSuite struct {
testutil.BaseTest
}
type attrerObject map[string]interface{}
func (o attrerObject) Lookup(path string) (interface{}, bool) {
v, ok := o[path]
return v, ok
}
func attrs(yml string) *attrerObject {
var attrs map[string]interface{}
err := yaml.Unmarshal([]byte(yml), &attrs)
if err != nil {
panic(err)
}
snapYaml, err := yaml.Marshal(map[string]interface{}{
"name": "sample",
"plugs": map[string]interface{}{
"plug": attrs,
},
})
if err != nil {
panic(err)
}
// NOTE: it's important to go through snap yaml here even though we're really interested in Attrs only,
// as InfoFromSnapYaml normalizes yaml values.
info, err := snap.InfoFromSnapYaml(snapYaml)
if err != nil {
panic(err)
}
ao := attrerObject(info.Plugs["plug"].Attrs)
return &ao
}
func (s *attrConstraintsSuite) SetUpTest(c *C) {
s.BaseTest.SetUpTest(c)
s.BaseTest.AddCleanup(snap.MockSanitizePlugsSlots(func(snapInfo *snap.Info) {}))
}
func (s *attrConstraintsSuite) TearDownTest(c *C) {
s.BaseTest.TearDownTest(c)
}
func (s *attrConstraintsSuite) TestSimple(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
foo: FOO
bar: BAR`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
plug := attrerObject(map[string]interface{}{
"foo": "FOO",
"bar": "BAR",
"baz": "BAZ",
})
err = cstrs.Check(plug, nil)
c.Check(err, IsNil)
plug = attrerObject(map[string]interface{}{
"foo": "FOO",
"bar": "BAZ",
"baz": "BAZ",
})
err = cstrs.Check(plug, nil)
c.Check(err, ErrorMatches, `attribute "bar" value "BAZ" does not match \^\(BAR\)\$`)
plug = attrerObject(map[string]interface{}{
"foo": "FOO",
"baz": "BAZ",
})
err = cstrs.Check(plug, nil)
c.Check(err, ErrorMatches, `attribute "bar" has constraints but is unset`)
}
func (s *attrConstraintsSuite) TestMissingCheck(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
foo: $MISSING`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(asserts.RuleFeature(cstrs, "dollar-attr-constraints"), Equals, true)
}
func (s *attrConstraintsSuite) TestNested(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
foo: FOO
bar:
bar1: BAR1
bar2: BAR2`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
err = cstrs.Check(attrs(`
foo: FOO
bar:
bar1: BAR1
bar2: BAR2
bar3: BAR3
baz: BAZ
`), nil)
c.Check(err, IsNil)
err = cstrs.Check(attrs(`
foo: FOO
bar: BAZ
baz: BAZ
`), nil)
c.Check(err, ErrorMatches, `attribute "bar" must be a map`)
err = cstrs.Check(attrs(`
foo: FOO
bar:
bar1: BAR1
bar2: BAR22
bar3: BAR3
baz: BAZ
`), nil)
c.Check(err, ErrorMatches, `attribute "bar\.bar2" value "BAR22" does not match \^\(BAR2\)\$`)
err = cstrs.Check(attrs(`
foo: FOO
bar:
bar1: BAR1
bar2:
bar22: true
bar3: BAR3
baz: BAZ
`), nil)
c.Check(err, ErrorMatches, `attribute "bar\.bar2" must be a scalar or list`)
}
func (s *attrConstraintsSuite) TestAlternativeMatchingComplex(c *C) {
toMatch := attrs(`
mnt: [{what: "/dev/x*", where: "/foo/*", options: ["rw", "nodev"]}, {what: "/bar/*", where: "/baz/*", options: ["rw", "bind"]}]
`)
m, err := asserts.ParseHeaders([]byte(`attrs:
mnt:
-
what: /(bar/|dev/x)\*
where: /(foo|baz)/\*
options: rw|bind|nodev`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
err = cstrs.Check(toMatch, nil)
c.Check(err, IsNil)
m, err = asserts.ParseHeaders([]byte(`attrs:
mnt:
-
what: /dev/x\*
where: /foo/\*
options:
- nodev
- rw
-
what: /bar/\*
where: /baz/\*
options:
- rw
- bind`))
c.Assert(err, IsNil)
cstrsExtensive, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
err = cstrsExtensive.Check(toMatch, nil)
c.Check(err, IsNil)
// not matching case
m, err = asserts.ParseHeaders([]byte(`attrs:
mnt:
-
what: /dev/x\*
where: /foo/\*
options:
- rw
-
what: /bar/\*
where: /baz/\*
options:
- rw
- bind`))
c.Assert(err, IsNil)
cstrsExtensiveNoMatch, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
err = cstrsExtensiveNoMatch.Check(toMatch, nil)
c.Check(err, ErrorMatches, `no alternative for attribute "mnt\.0" matches: no alternative for attribute "mnt\.0.options\.1" matches:.*`)
}
func (s *attrConstraintsSuite) TestOtherScalars(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
foo: 1
bar: true`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
err = cstrs.Check(attrs(`
foo: 1
bar: true
`), nil)
c.Check(err, IsNil)
}
func (s *attrConstraintsSuite) TestCompileErrors(c *C) {
_, err := asserts.CompileAttributeConstraints(map[string]interface{}{
"foo": "[",
})
c.Check(err, ErrorMatches, `cannot compile "foo" constraint "\[": error parsing regexp:.*`)
_, err = asserts.CompileAttributeConstraints("FOO")
c.Check(err, ErrorMatches, `first level of non alternative constraints must be a set of key-value constraints`)
_, err = asserts.CompileAttributeConstraints([]interface{}{"FOO"})
c.Check(err, ErrorMatches, `first level of non alternative constraints must be a set of key-value constraints`)
wrongDollarConstraints := []string{
"$",
"$FOO(a)",
"$SLOT",
"$SLOT()",
}
for _, wrong := range wrongDollarConstraints {
_, err := asserts.CompileAttributeConstraints(map[string]interface{}{
"foo": wrong,
})
c.Check(err, ErrorMatches, fmt.Sprintf(`cannot compile "foo" constraint "%s": not a valid \$SLOT\(\)/\$PLUG\(\)/\$PLUG_PUBLISHER_ID/\$SLOT_PUBLISHER_ID constraint`, regexp.QuoteMeta(wrong)))
}
}
type testEvalAttr struct {
comp func(side string, arg string) (interface{}, error)
plugPublisherID string
slotPublisherID string
}
func (ca testEvalAttr) SlotAttr(arg string) (interface{}, error) {
return ca.comp("slot", arg)
}
func (ca testEvalAttr) PlugAttr(arg string) (interface{}, error) {
return ca.comp("plug", arg)
}
func (ca testEvalAttr) PlugPublisherID() string {
return ca.plugPublisherID
}
func (ca testEvalAttr) SlotPublisherID() string {
return ca.slotPublisherID
}
func (s *attrConstraintsSuite) TestEvalCheck(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
foo: $SLOT(foo)
bar: $PLUG(bar.baz)`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(asserts.RuleFeature(cstrs, "dollar-attr-constraints"), Equals, true)
err = cstrs.Check(attrs(`
foo: foo
bar: bar
`), nil)
c.Check(err, ErrorMatches, `attribute "(foo|bar)" cannot be matched without context`)
calls := make(map[[2]string]bool)
comp1 := func(op string, arg string) (interface{}, error) {
calls[[2]string{op, arg}] = true
return arg, nil
}
err = cstrs.Check(attrs(`
foo: foo
bar: bar.baz
`), testEvalAttr{comp: comp1})
c.Check(err, IsNil)
c.Check(calls, DeepEquals, map[[2]string]bool{
{"slot", "foo"}: true,
{"plug", "bar.baz"}: true,
})
comp2 := func(op string, arg string) (interface{}, error) {
if op == "plug" {
return nil, fmt.Errorf("boom")
}
return arg, nil
}
err = cstrs.Check(attrs(`
foo: foo
bar: bar.baz
`), testEvalAttr{comp: comp2})
c.Check(err, ErrorMatches, `attribute "bar" constraint \$PLUG\(bar\.baz\) cannot be evaluated: boom`)
comp3 := func(op string, arg string) (interface{}, error) {
if op == "slot" {
return "other-value", nil
}
return arg, nil
}
err = cstrs.Check(attrs(`
foo: foo
bar: bar.baz
`), testEvalAttr{comp: comp3})
c.Check(err, ErrorMatches, `attribute "foo" does not match \$SLOT\(foo\): foo != other-value`)
}
func (s *attrConstraintsSuite) TestCheckWithAttrPlugPublisherID(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
my-attr: $PLUG_PUBLISHER_ID`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(asserts.RuleFeature(cstrs, "publisher-id-constraints"), Equals, true)
helper := testEvalAttr{plugPublisherID: "my-account"}
err = cstrs.Check(attrs(`
my-attr: my-account
`), nil)
c.Check(err, ErrorMatches, `attribute "my-attr" cannot be matched without context`)
err = cstrs.Check(attrs(`
my-attr: my-account
`), helper)
c.Check(err, IsNil)
err = cstrs.Check(attrs(`
my-attr: other-account
`), helper)
c.Check(err, ErrorMatches, `.*attribute "my-attr" does not match \$PLUG_PUBLISHER_ID\: other-account != my-account`)
err = cstrs.Check(attrs(`
my-attr: 1
`), helper)
c.Check(err, ErrorMatches, `.*attribute "my-attr" is not expected string type: int64`)
}
func (s *attrConstraintsSuite) TestCheckWithAttrSlotPublisherID(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
my-attr: $SLOT_PUBLISHER_ID`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(asserts.RuleFeature(cstrs, "publisher-id-constraints"), Equals, true)
helper := testEvalAttr{slotPublisherID: "my-account"}
err = cstrs.Check(attrs(`
my-attr: my-account
`), nil)
c.Check(err, ErrorMatches, `attribute "my-attr" cannot be matched without context`)
err = cstrs.Check(attrs(`
my-attr: my-account
`), helper)
c.Check(err, IsNil)
err = cstrs.Check(attrs(`
my-attr: other-account
`), helper)
c.Check(err, ErrorMatches, `.*attribute "my-attr" does not match \$SLOT_PUBLISHER_ID\: other-account != my-account`)
err = cstrs.Check(attrs(`
my-attr: 1
`), helper)
c.Check(err, ErrorMatches, `.*attribute "my-attr" is not expected string type: int64`)
}
func (s *attrConstraintsSuite) TestNeverMatchAttributeConstraints(c *C) {
c.Check(asserts.NeverMatchAttributes.Check(nil, nil), NotNil)
}
type nameConstraintsSuite struct{}
func (s *nameConstraintsSuite) TestCompileErrors(c *C) {
_, err := asserts.CompileNameConstraints("slot-names", "true")
c.Check(err, ErrorMatches, `slot-names constraints must be a list of regexps and special \$ values`)
_, err = asserts.CompileNameConstraints("slot-names", []interface{}{map[string]interface{}{"foo": "bar"}})
c.Check(err, ErrorMatches, `slot-names constraint entry must be a regexp or special \$ value`)
_, err = asserts.CompileNameConstraints("plug-names", []interface{}{"["})
c.Check(err, ErrorMatches, `cannot compile plug-names constraint entry "\[":.*`)
_, err = asserts.CompileNameConstraints("plug-names", []interface{}{"$"})
c.Check(err, ErrorMatches, `plug-names constraint entry special value "\$" is invalid`)
_, err = asserts.CompileNameConstraints("slot-names", []interface{}{"$12"})
c.Check(err, ErrorMatches, `slot-names constraint entry special value "\$12" is invalid`)
_, err = asserts.CompileNameConstraints("plug-names", []interface{}{"a b"})
c.Check(err, ErrorMatches, `plug-names constraint entry regexp contains unexpected spaces`)
}
func (s *nameConstraintsSuite) TestCheck(c *C) {
nc, err := asserts.CompileNameConstraints("slot-names", []interface{}{"foo[0-9]", "bar"})
c.Assert(err, IsNil)
for _, matching := range []string{"foo0", "foo1", "bar"} {
c.Check(nc.Check("slot name", matching, nil), IsNil)
}
for _, notMatching := range []string{"baz", "fooo", "foo12"} {
c.Check(nc.Check("slot name", notMatching, nil), ErrorMatches, fmt.Sprintf(`slot name %q does not match constraints`, notMatching))
}
}
func (s *nameConstraintsSuite) TestCheckSpecial(c *C) {
nc, err := asserts.CompileNameConstraints("slot-names", []interface{}{"$INTERFACE"})
c.Assert(err, IsNil)
c.Check(nc.Check("slot name", "foo", nil), ErrorMatches, `slot name "foo" does not match constraints`)
c.Check(nc.Check("slot name", "foo", map[string]string{"$INTERFACE": "foo"}), IsNil)
c.Check(nc.Check("slot name", "bar", map[string]string{"$INTERFACE": "foo"}), ErrorMatches, `slot name "bar" does not match constraints`)
}
type plugSlotRulesSuite struct{}
func checkAttrs(c *C, attrs *asserts.AttributeConstraints, witness, expected string) {
plug := attrerObject(map[string]interface{}{
witness: "XYZ",
})
c.Check(attrs.Check(plug, nil), ErrorMatches, fmt.Sprintf(`attribute "%s".*does not match.*`, witness))
plug = attrerObject(map[string]interface{}{
witness: expected,
})
c.Check(attrs.Check(plug, nil), IsNil)
}
var (
sideArityAny = asserts.SideArityConstraint{N: -1}
sideArityOne = asserts.SideArityConstraint{N: 1}
)
func checkBoolPlugConnConstraints(c *C, subrule string, cstrs []*asserts.PlugConnectionConstraints, always bool) {
expected := asserts.NeverMatchAttributes
if always {
expected = asserts.AlwaysMatchAttributes
}
c.Assert(cstrs, HasLen, 1)
cstrs1 := cstrs[0]
c.Check(cstrs1.PlugAttributes, Equals, expected)
c.Check(cstrs1.SlotAttributes, Equals, expected)
if strings.HasPrefix(subrule, "deny-") {
undef := asserts.SideArityConstraint{}
c.Check(cstrs1.SlotsPerPlug, Equals, undef)
c.Check(cstrs1.PlugsPerSlot, Equals, undef)
} else {
c.Check(cstrs1.PlugsPerSlot, Equals, sideArityAny)
if strings.HasSuffix(subrule, "-auto-connection") {
c.Check(cstrs1.SlotsPerPlug, Equals, sideArityOne)
} else {
c.Check(cstrs1.SlotsPerPlug, Equals, sideArityAny)
}
}
c.Check(cstrs1.SlotSnapIDs, HasLen, 0)
c.Check(cstrs1.SlotPublisherIDs, HasLen, 0)
c.Check(cstrs1.SlotSnapTypes, HasLen, 0)
}
func checkBoolSlotConnConstraints(c *C, subrule string, cstrs []*asserts.SlotConnectionConstraints, always bool) {
expected := asserts.NeverMatchAttributes
if always {
expected = asserts.AlwaysMatchAttributes
}
c.Assert(cstrs, HasLen, 1)
cstrs1 := cstrs[0]
c.Check(cstrs1.PlugAttributes, Equals, expected)
c.Check(cstrs1.SlotAttributes, Equals, expected)
if strings.HasPrefix(subrule, "deny-") {
undef := asserts.SideArityConstraint{}
c.Check(cstrs1.SlotsPerPlug, Equals, undef)
c.Check(cstrs1.PlugsPerSlot, Equals, undef)
} else {
c.Check(cstrs1.PlugsPerSlot, Equals, sideArityAny)
if strings.HasSuffix(subrule, "-auto-connection") {
c.Check(cstrs1.SlotsPerPlug, Equals, sideArityOne)
} else {
c.Check(cstrs1.SlotsPerPlug, Equals, sideArityAny)
}
}
c.Check(cstrs1.PlugSnapIDs, HasLen, 0)
c.Check(cstrs1.PlugPublisherIDs, HasLen, 0)
c.Check(cstrs1.PlugSnapTypes, HasLen, 0)
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleAllAllowDenyStanzas(c *C) {
m, err := asserts.ParseHeaders([]byte(`iface:
allow-installation:
plug-attributes:
a1: A1
deny-installation:
plug-attributes:
a2: A2
allow-connection:
plug-attributes:
pa3: PA3
slot-attributes:
sa3: SA3
deny-connection:
plug-attributes:
pa4: PA4
slot-attributes:
sa4: SA4
allow-auto-connection:
plug-attributes:
pa5: PA5
slot-attributes:
sa5: SA5
deny-auto-connection:
plug-attributes:
pa6: PA6
slot-attributes:
sa6: SA6`))
c.Assert(err, IsNil)
rule, err := asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.Interface, Equals, "iface")
// install subrules
c.Assert(rule.AllowInstallation, HasLen, 1)
checkAttrs(c, rule.AllowInstallation[0].PlugAttributes, "a1", "A1")
c.Assert(rule.DenyInstallation, HasLen, 1)
checkAttrs(c, rule.DenyInstallation[0].PlugAttributes, "a2", "A2")
// connection subrules
c.Assert(rule.AllowConnection, HasLen, 1)
checkAttrs(c, rule.AllowConnection[0].PlugAttributes, "pa3", "PA3")
checkAttrs(c, rule.AllowConnection[0].SlotAttributes, "sa3", "SA3")
c.Assert(rule.DenyConnection, HasLen, 1)
checkAttrs(c, rule.DenyConnection[0].PlugAttributes, "pa4", "PA4")
checkAttrs(c, rule.DenyConnection[0].SlotAttributes, "sa4", "SA4")
// auto-connection subrules
c.Assert(rule.AllowAutoConnection, HasLen, 1)
checkAttrs(c, rule.AllowAutoConnection[0].PlugAttributes, "pa5", "PA5")
checkAttrs(c, rule.AllowAutoConnection[0].SlotAttributes, "sa5", "SA5")
c.Assert(rule.DenyAutoConnection, HasLen, 1)
checkAttrs(c, rule.DenyAutoConnection[0].PlugAttributes, "pa6", "PA6")
checkAttrs(c, rule.DenyAutoConnection[0].SlotAttributes, "sa6", "SA6")
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleAllAllowDenyOrStanzas(c *C) {
m, err := asserts.ParseHeaders([]byte(`iface:
allow-installation:
-
plug-attributes:
a1: A1
-
plug-attributes:
a1: A1alt
deny-installation:
-
plug-attributes:
a2: A2
-
plug-attributes:
a2: A2alt
allow-connection:
-
plug-attributes:
pa3: PA3
slot-attributes:
sa3: SA3
-
plug-attributes:
pa3: PA3alt
deny-connection:
-
plug-attributes:
pa4: PA4
slot-attributes:
sa4: SA4
-
plug-attributes:
pa4: PA4alt
allow-auto-connection:
-
plug-attributes:
pa5: PA5
slot-attributes:
sa5: SA5
-
plug-attributes:
pa5: PA5alt
deny-auto-connection:
-
plug-attributes:
pa6: PA6
slot-attributes:
sa6: SA6
-
plug-attributes:
pa6: PA6alt`))
c.Assert(err, IsNil)
rule, err := asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.Interface, Equals, "iface")
// install subrules
c.Assert(rule.AllowInstallation, HasLen, 2)
checkAttrs(c, rule.AllowInstallation[0].PlugAttributes, "a1", "A1")
checkAttrs(c, rule.AllowInstallation[1].PlugAttributes, "a1", "A1alt")
c.Assert(rule.DenyInstallation, HasLen, 2)
checkAttrs(c, rule.DenyInstallation[0].PlugAttributes, "a2", "A2")
checkAttrs(c, rule.DenyInstallation[1].PlugAttributes, "a2", "A2alt")
// connection subrules
c.Assert(rule.AllowConnection, HasLen, 2)
checkAttrs(c, rule.AllowConnection[0].PlugAttributes, "pa3", "PA3")
checkAttrs(c, rule.AllowConnection[0].SlotAttributes, "sa3", "SA3")
checkAttrs(c, rule.AllowConnection[1].PlugAttributes, "pa3", "PA3alt")
c.Assert(rule.DenyConnection, HasLen, 2)
checkAttrs(c, rule.DenyConnection[0].PlugAttributes, "pa4", "PA4")
checkAttrs(c, rule.DenyConnection[0].SlotAttributes, "sa4", "SA4")
checkAttrs(c, rule.DenyConnection[1].PlugAttributes, "pa4", "PA4alt")
// auto-connection subrules
c.Assert(rule.AllowAutoConnection, HasLen, 2)
checkAttrs(c, rule.AllowAutoConnection[0].PlugAttributes, "pa5", "PA5")
checkAttrs(c, rule.AllowAutoConnection[0].SlotAttributes, "sa5", "SA5")
checkAttrs(c, rule.AllowAutoConnection[1].PlugAttributes, "pa5", "PA5alt")
c.Assert(rule.DenyAutoConnection, HasLen, 2)
checkAttrs(c, rule.DenyAutoConnection[0].PlugAttributes, "pa6", "PA6")
checkAttrs(c, rule.DenyAutoConnection[0].SlotAttributes, "sa6", "SA6")
checkAttrs(c, rule.DenyAutoConnection[1].PlugAttributes, "pa6", "PA6alt")
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleShortcutTrue(c *C) {
rule, err := asserts.CompilePlugRule("iface", "true")
c.Assert(err, IsNil)
c.Check(rule.Interface, Equals, "iface")
// install subrules
c.Assert(rule.AllowInstallation, HasLen, 1)
c.Check(rule.AllowInstallation[0].PlugAttributes, Equals, asserts.AlwaysMatchAttributes)
c.Assert(rule.DenyInstallation, HasLen, 1)
c.Check(rule.DenyInstallation[0].PlugAttributes, Equals, asserts.NeverMatchAttributes)
// connection subrules
checkBoolPlugConnConstraints(c, "allow-connection", rule.AllowConnection, true)
checkBoolPlugConnConstraints(c, "deny-connection", rule.DenyConnection, false)
// auto-connection subrules
checkBoolPlugConnConstraints(c, "allow-auto-connection", rule.AllowAutoConnection, true)
checkBoolPlugConnConstraints(c, "deny-auto-connection", rule.DenyAutoConnection, false)
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleShortcutFalse(c *C) {
rule, err := asserts.CompilePlugRule("iface", "false")
c.Assert(err, IsNil)
// install subrules
c.Assert(rule.AllowInstallation, HasLen, 1)
c.Check(rule.AllowInstallation[0].PlugAttributes, Equals, asserts.NeverMatchAttributes)
c.Assert(rule.DenyInstallation, HasLen, 1)
c.Check(rule.DenyInstallation[0].PlugAttributes, Equals, asserts.AlwaysMatchAttributes)
// connection subrules
checkBoolPlugConnConstraints(c, "allow-connection", rule.AllowConnection, false)
checkBoolPlugConnConstraints(c, "deny-connection", rule.DenyConnection, true)
// auto-connection subrules
checkBoolPlugConnConstraints(c, "allow-auto-connection", rule.AllowAutoConnection, false)
checkBoolPlugConnConstraints(c, "deny-auto-connection", rule.DenyAutoConnection, true)
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleDefaults(c *C) {
rule, err := asserts.CompilePlugRule("iface", map[string]interface{}{
"deny-auto-connection": "true",
})
c.Assert(err, IsNil)
// everything follows the defaults...
// install subrules
c.Assert(rule.AllowInstallation, HasLen, 1)
c.Check(rule.AllowInstallation[0].PlugAttributes, Equals, asserts.AlwaysMatchAttributes)
c.Assert(rule.DenyInstallation, HasLen, 1)
c.Check(rule.DenyInstallation[0].PlugAttributes, Equals, asserts.NeverMatchAttributes)
// connection subrules
checkBoolPlugConnConstraints(c, "allow-connection", rule.AllowConnection, true)
checkBoolPlugConnConstraints(c, "deny-connection", rule.DenyConnection, false)
// auto-connection subrules
checkBoolPlugConnConstraints(c, "allow-auto-connection", rule.AllowAutoConnection, true)
// ... but deny-auto-connection is on
checkBoolPlugConnConstraints(c, "deny-auto-connection", rule.DenyAutoConnection, true)
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleInstalationConstraintsIDConstraints(c *C) {
rule, err := asserts.CompilePlugRule("iface", map[string]interface{}{
"allow-installation": map[string]interface{}{
"plug-snap-type": []interface{}{"core", "kernel", "gadget", "app"},
"plug-snap-id": []interface{}{"snapidsnapidsnapidsnapidsnapid01", "snapidsnapidsnapidsnapidsnapid02"},
},
})
c.Assert(err, IsNil)
c.Assert(rule.AllowInstallation, HasLen, 1)
cstrs := rule.AllowInstallation[0]
c.Check(cstrs.PlugSnapTypes, DeepEquals, []string{"core", "kernel", "gadget", "app"})
c.Check(cstrs.PlugSnapIDs, DeepEquals, []string{"snapidsnapidsnapidsnapidsnapid01", "snapidsnapidsnapidsnapidsnapid02"})
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleInstallationConstraintsOnClassic(c *C) {
m, err := asserts.ParseHeaders([]byte(`iface:
allow-installation: true`))
c.Assert(err, IsNil)
rule, err := asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowInstallation[0].OnClassic, IsNil)
m, err = asserts.ParseHeaders([]byte(`iface:
allow-installation:
on-classic: false`))
c.Assert(err, IsNil)
rule, err = asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowInstallation[0].OnClassic, DeepEquals, &asserts.OnClassicConstraint{})
m, err = asserts.ParseHeaders([]byte(`iface:
allow-installation:
on-classic: true`))
c.Assert(err, IsNil)
rule, err = asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowInstallation[0].OnClassic, DeepEquals, &asserts.OnClassicConstraint{Classic: true})
m, err = asserts.ParseHeaders([]byte(`iface:
allow-installation:
on-classic:
- ubuntu
- debian`))
c.Assert(err, IsNil)
rule, err = asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowInstallation[0].OnClassic, DeepEquals, &asserts.OnClassicConstraint{Classic: true, SystemIDs: []string{"ubuntu", "debian"}})
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleInstallationConstraintsDeviceScope(c *C) {
m, err := asserts.ParseHeaders([]byte(`iface:
allow-installation: true`))
c.Assert(err, IsNil)
rule, err := asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowInstallation[0].DeviceScope, IsNil)
tests := []struct {
rule string
expected asserts.DeviceScopeConstraint
}{
{`iface:
allow-installation:
on-store:
- my-store`, asserts.DeviceScopeConstraint{Store: []string{"my-store"}}},
{`iface:
allow-installation:
on-store:
- my-store
- other-store`, asserts.DeviceScopeConstraint{Store: []string{"my-store", "other-store"}}},
{`iface:
allow-installation:
on-brand:
- my-brand
- s9zGdwb16ysLeRW6nRivwZS5r9puP8JT`, asserts.DeviceScopeConstraint{Brand: []string{"my-brand", "s9zGdwb16ysLeRW6nRivwZS5r9puP8JT"}}},
{`iface:
allow-installation:
on-model:
- my-brand/bar
- s9zGdwb16ysLeRW6nRivwZS5r9puP8JT/baz`, asserts.DeviceScopeConstraint{Model: []string{"my-brand/bar", "s9zGdwb16ysLeRW6nRivwZS5r9puP8JT/baz"}}},
{`iface:
allow-installation:
on-store:
- store1
- store2
on-brand:
- my-brand
on-model:
- my-brand/bar
- s9zGdwb16ysLeRW6nRivwZS5r9puP8JT/baz`, asserts.DeviceScopeConstraint{
Store: []string{"store1", "store2"},
Brand: []string{"my-brand"},
Model: []string{"my-brand/bar", "s9zGdwb16ysLeRW6nRivwZS5r9puP8JT/baz"}}},
}
for _, t := range tests {
m, err = asserts.ParseHeaders([]byte(t.rule))
c.Assert(err, IsNil)
rule, err = asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowInstallation[0].DeviceScope, DeepEquals, &t.expected)
}
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleInstallationConstraintsPlugNames(c *C) {
m, err := asserts.ParseHeaders([]byte(`iface:
allow-installation: true`))
c.Assert(err, IsNil)
rule, err := asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowInstallation[0].PlugNames, IsNil)
tests := []struct {
rule string
matching []string
notMatching []string
}{
{`iface:
allow-installation:
plug-names:
- foo`, []string{"foo"}, []string{"bar"}},
{`iface:
allow-installation:
plug-names:
- foo
- bar`, []string{"foo", "bar"}, []string{"baz"}},
{`iface:
allow-installation:
plug-names:
- foo[0-9]
- bar`, []string{"foo0", "foo1", "bar"}, []string{"baz", "fooo", "foo12"}},
}
for _, t := range tests {
m, err = asserts.ParseHeaders([]byte(t.rule))
c.Assert(err, IsNil)
rule, err = asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
for _, matching := range t.matching {
c.Check(rule.AllowInstallation[0].PlugNames.Check("plug name", matching, nil), IsNil)
}
for _, notMatching := range t.notMatching {
c.Check(rule.AllowInstallation[0].PlugNames.Check("plug name", notMatching, nil), NotNil)
}
}
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleConnectionConstraintsIDConstraints(c *C) {
rule, err := asserts.CompilePlugRule("iface", map[string]interface{}{
"allow-connection": map[string]interface{}{
"slot-snap-type": []interface{}{"core", "kernel", "gadget", "app"},
"slot-snap-id": []interface{}{"snapidsnapidsnapidsnapidsnapid01", "snapidsnapidsnapidsnapidsnapid02"},
"slot-publisher-id": []interface{}{"pubidpubidpubidpubidpubidpubid09", "canonical", "$SAME"},
},
})
c.Assert(err, IsNil)
c.Assert(rule.AllowConnection, HasLen, 1)
cstrs := rule.AllowConnection[0]
c.Check(cstrs.SlotSnapTypes, DeepEquals, []string{"core", "kernel", "gadget", "app"})
c.Check(cstrs.SlotSnapIDs, DeepEquals, []string{"snapidsnapidsnapidsnapidsnapid01", "snapidsnapidsnapidsnapidsnapid02"})
c.Check(cstrs.SlotPublisherIDs, DeepEquals, []string{"pubidpubidpubidpubidpubidpubid09", "canonical", "$SAME"})
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleConnectionConstraintsOnClassic(c *C) {
m, err := asserts.ParseHeaders([]byte(`iface:
allow-connection: true`))
c.Assert(err, IsNil)
rule, err := asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowConnection[0].OnClassic, IsNil)
m, err = asserts.ParseHeaders([]byte(`iface:
allow-connection:
on-classic: false`))
c.Assert(err, IsNil)
rule, err = asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowConnection[0].OnClassic, DeepEquals, &asserts.OnClassicConstraint{})
m, err = asserts.ParseHeaders([]byte(`iface:
allow-connection:
on-classic: true`))
c.Assert(err, IsNil)
rule, err = asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowConnection[0].OnClassic, DeepEquals, &asserts.OnClassicConstraint{Classic: true})
m, err = asserts.ParseHeaders([]byte(`iface:
allow-connection:
on-classic:
- ubuntu
- debian`))
c.Assert(err, IsNil)
rule, err = asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowConnection[0].OnClassic, DeepEquals, &asserts.OnClassicConstraint{Classic: true, SystemIDs: []string{"ubuntu", "debian"}})
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleConnectionConstraintsDeviceScope(c *C) {
m, err := asserts.ParseHeaders([]byte(`iface:
allow-connection: true`))
c.Assert(err, IsNil)
rule, err := asserts.CompilePlugRule("iface", m["iface"].(map[string]interface{}))
c.Assert(err, IsNil)
c.Check(rule.AllowInstallation[0].DeviceScope, IsNil)
tests := []struct {
rule string
expected asserts.DeviceScopeConstraint
}{
{`iface:
allow-connection:
on-store:
- my-store`, asserts.DeviceScopeConstraint{Store: []string{"my-store"}}},
{`iface:
allow-connection:
on-store:
- my-store
- other-store`, asserts.DeviceScopeConstraint{Store: []string{"my-store", "other-store"}}},
{`iface:
allow-connection:
on-brand: