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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) 2015-2017 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"
. "gopkg.in/check.v1"
"gopkg.in/yaml.v2"
"github.com/snapcore/snapd/asserts"
"github.com/snapcore/snapd/snap"
)
var (
_ = Suite(&attrConstraintsSuite{})
_ = Suite(&plugSlotRulesSuite{})
)
type attrConstraintsSuite struct{}
func attrs(yml string) map[string]interface{} {
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)
}
info, err := snap.InfoFromSnapYaml(snapYaml)
if err != nil {
panic(err)
}
return info.Plugs["plug"].Attrs
}
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)
err = cstrs.Check(map[string]interface{}{
"foo": "FOO",
"bar": "BAR",
"baz": "BAZ",
}, nil)
c.Check(err, IsNil)
err = cstrs.Check(map[string]interface{}{
"foo": "FOO",
"bar": "BAZ",
"baz": "BAZ",
}, nil)
c.Check(err, ErrorMatches, `attribute "bar" value "BAZ" does not match \^\(BAR\)\$`)
err = cstrs.Check(map[string]interface{}{
"foo": "FOO",
"baz": "BAZ",
}, nil)
c.Check(err, ErrorMatches, `attribute "bar" has constraints but is unset`)
}
func (s *attrConstraintsSuite) TestSimpleAnchorsVsRegexpAlt(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
bar: BAR|BAZ`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
err = cstrs.Check(map[string]interface{}{
"bar": "BAR",
}, nil)
c.Check(err, IsNil)
err = cstrs.Check(map[string]interface{}{
"bar": "BARR",
}, nil)
c.Check(err, ErrorMatches, `attribute "bar" value "BARR" does not match \^\(BAR|BAZ\)\$`)
err = cstrs.Check(map[string]interface{}{
"bar": "BBAZ",
}, nil)
c.Check(err, ErrorMatches, `attribute "bar" value "BAZZ" does not match \^\(BAR|BAZ\)\$`)
err = cstrs.Check(map[string]interface{}{
"bar": "BABAZ",
}, nil)
c.Check(err, ErrorMatches, `attribute "bar" value "BABAZ" does not match \^\(BAR|BAZ\)\$`)
err = cstrs.Check(map[string]interface{}{
"bar": "BARAZ",
}, nil)
c.Check(err, ErrorMatches, `attribute "bar" value "BARAZ" does not match \^\(BAR|BAZ\)\$`)
}
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) TestAlternative(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
-
foo: FOO
bar: BAR
-
foo: FOO
bar: BAZ`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].([]interface{}))
c.Assert(err, IsNil)
err = cstrs.Check(map[string]interface{}{
"foo": "FOO",
"bar": "BAR",
"baz": "BAZ",
}, nil)
c.Check(err, IsNil)
err = cstrs.Check(map[string]interface{}{
"foo": "FOO",
"bar": "BAZ",
"baz": "BAZ",
}, nil)
c.Check(err, IsNil)
err = cstrs.Check(map[string]interface{}{
"foo": "FOO",
"bar": "BARR",
"baz": "BAR",
}, nil)
c.Check(err, ErrorMatches, `no alternative matches: attribute "bar" value "BARR" does not match \^\(BAR\)\$`)
}
func (s *attrConstraintsSuite) TestNestedAlternative(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
foo: FOO
bar:
bar1: BAR1
bar2:
- BAR2
- BAR22`))
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
`), nil)
c.Check(err, IsNil)
err = cstrs.Check(attrs(`
foo: FOO
bar:
bar1: BAR1
bar2: BAR22
`), nil)
c.Check(err, IsNil)
err = cstrs.Check(attrs(`
foo: FOO
bar:
bar1: BAR1
bar2: BAR3
`), nil)
c.Check(err, ErrorMatches, `no alternative for attribute "bar\.bar2" matches: attribute "bar\.bar2" value "BAR3" does not match \^\(BAR2\)\$`)
}
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)
err = cstrs.Check(map[string]interface{}{
"foo": int64(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(map[string]interface{}{
"foo": []interface{}{"foo", "["},
})
c.Check(err, ErrorMatches, `cannot compile "foo/alt#2/" constraint "\[": error parsing regexp:.*`)
_, err = asserts.CompileAttributeConstraints(map[string]interface{}{
"foo": []interface{}{"foo", []interface{}{"bar", "baz"}},
})
c.Check(err, ErrorMatches, `cannot nest alternative constraints directly at "foo/alt#2/"`)
_, err = asserts.CompileAttributeConstraints("FOO")
c.Check(err, ErrorMatches, `first level of non alternative constraints must be a set of key-value contraints`)
_, err = asserts.CompileAttributeConstraints([]interface{}{"FOO"})
c.Check(err, ErrorMatches, `first level of non alternative constraints must be a set of key-value contraints`)
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\(\) constraint`, regexp.QuoteMeta(wrong)))
}
}
func (s *attrConstraintsSuite) TestMatchingListsSimple(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
foo: /foo/.*`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
err = cstrs.Check(attrs(`
foo: ["/foo/x", "/foo/y"]
`), nil)
c.Check(err, IsNil)
err = cstrs.Check(attrs(`
foo: ["/foo/x", "/foo"]
`), nil)
c.Check(err, ErrorMatches, `attribute "foo\.1" value "/foo" does not match \^\(/foo/\.\*\)\$`)
}
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)
err = cstrs.Check(attrs(`
bar: baz
`), nil)
c.Check(err, IsNil)
err = cstrs.Check(attrs(`
foo: ["x"]
`), nil)
c.Check(err, ErrorMatches, `attribute "foo" is constrained to be missing but is set`)
}
type testEvalAttr struct {
comp func(side string, arg string) (interface{}, error)
}
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 (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{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{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{comp3})
c.Check(err, ErrorMatches, `attribute "foo" does not match \$SLOT\(foo\): foo != other-value`)
}
func (s *attrConstraintsSuite) TestMatchingListsMap(c *C) {
m, err := asserts.ParseHeaders([]byte(`attrs:
foo:
p: /foo/.*`))
c.Assert(err, IsNil)
cstrs, err := asserts.CompileAttributeConstraints(m["attrs"].(map[string]interface{}))
c.Assert(err, IsNil)
err = cstrs.Check(attrs(`
foo: [{p: "/foo/x"}, {p: "/foo/y"}]
`), nil)
c.Check(err, IsNil)
err = cstrs.Check(attrs(`
foo: [{p: "zzz"}, {p: "/foo/y"}]
`), nil)
c.Check(err, ErrorMatches, `attribute "foo\.0\.p" value "zzz" does not match \^\(/foo/\.\*\)\$`)
}
func (s *attrConstraintsSuite) TestAlwaysMatchAttributeConstraints(c *C) {
c.Check(asserts.AlwaysMatchAttributes.Check(nil, nil), IsNil)
}
func (s *attrConstraintsSuite) TestNeverMatchAttributeConstraints(c *C) {
c.Check(asserts.NeverMatchAttributes.Check(nil, nil), NotNil)
}
type plugSlotRulesSuite struct{}
func checkAttrs(c *C, attrs *asserts.AttributeConstraints, witness, expected string) {
c.Check(attrs.Check(map[string]interface{}{
witness: "XYZ",
}, nil), ErrorMatches, fmt.Sprintf(`attribute "%s".*does not match.*`, witness))
c.Check(attrs.Check(map[string]interface{}{
witness: expected,
}, nil), IsNil)
}
func checkBoolPlugConnConstraints(c *C, 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)
c.Check(cstrs1.SlotSnapIDs, HasLen, 0)
c.Check(cstrs1.SlotPublisherIDs, HasLen, 0)
c.Check(cstrs1.SlotSnapTypes, HasLen, 0)
}
func checkBoolSlotConnConstraints(c *C, 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)
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, rule.AllowConnection, true)
checkBoolPlugConnConstraints(c, rule.DenyConnection, false)
// auto-connection subrules
checkBoolPlugConnConstraints(c, rule.AllowAutoConnection, true)
checkBoolPlugConnConstraints(c, 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, rule.AllowConnection, false)
checkBoolPlugConnConstraints(c, rule.DenyConnection, true)
// auto-connection subrules
checkBoolPlugConnConstraints(c, rule.AllowAutoConnection, false)
checkBoolPlugConnConstraints(c, 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, rule.AllowConnection, true)
checkBoolPlugConnConstraints(c, rule.DenyConnection, false)
// auto-connection subrules
checkBoolPlugConnConstraints(c, rule.AllowAutoConnection, true)
// ... but deny-auto-connection is on
checkBoolPlugConnConstraints(c, 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"},
},
})
c.Assert(err, IsNil)
c.Assert(rule.AllowInstallation, HasLen, 1)
cstrs := rule.AllowInstallation[0]
c.Check(cstrs.PlugSnapTypes, DeepEquals, []string{"core", "kernel", "gadget", "app"})
}
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) 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) TestCompilePlugRuleConnectionConstraintsAttributesDefault(c *C) {
rule, err := asserts.CompilePlugRule("iface", map[string]interface{}{
"allow-connection": map[string]interface{}{
"slot-snap-id": []interface{}{"snapidsnapidsnapidsnapidsnapid01"},
},
})
c.Assert(err, IsNil)
// attributes default to always matching here
cstrs := rule.AllowConnection[0]
c.Check(cstrs.PlugAttributes, Equals, asserts.AlwaysMatchAttributes)
c.Check(cstrs.SlotAttributes, Equals, asserts.AlwaysMatchAttributes)
}
func (s *plugSlotRulesSuite) TestCompilePlugRuleErrors(c *C) {
tests := []struct {
stanza string
err string
}{
{`iface: foo`, `plug rule for interface "iface" must be a map or one of the shortcuts 'true' or 'false'`},
{`iface:
- allow`, `plug rule for interface "iface" must be a map or one of the shortcuts 'true' or 'false'`},
{`iface:
allow-installation: foo`, `allow-installation in plug rule for interface "iface" must be a map or one of the shortcuts 'true' or 'false'`},
{`iface:
deny-installation: foo`, `deny-installation in plug rule for interface "iface" must be a map or one of the shortcuts 'true' or 'false'`},
{`iface:
allow-connection: foo`, `allow-connection in plug rule for interface "iface" must be a map or one of the shortcuts 'true' or 'false'`},
{`iface:
allow-connection:
- foo`, `alternative 1 of allow-connection in plug rule for interface "iface" must be a map`},
{`iface:
allow-connection:
- true`, `alternative 1 of allow-connection in plug rule for interface "iface" must be a map`},
{`iface:
allow-installation:
plug-attributes:
a1: [`, `cannot compile plug-attributes in allow-installation in plug rule for interface "iface": cannot compile "a1" constraint .*`},
{`iface:
allow-connection:
slot-attributes:
a2: [`, `cannot compile slot-attributes in allow-connection in plug rule for interface "iface": cannot compile "a2" constraint .*`},
{`iface:
allow-connection:
slot-snap-id:
-
foo: 1`, `slot-snap-id in allow-connection in plug rule for interface "iface" must be a list of strings`},
{`iface:
allow-connection:
slot-snap-id:
- foo`, `slot-snap-id in allow-connection in plug rule for interface "iface" contains an invalid element: "foo"`},
{`iface:
allow-connection:
slot-snap-type:
- foo`, `slot-snap-type in allow-connection in plug rule for interface "iface" contains an invalid element: "foo"`},
{`iface:
allow-connection:
slot-snap-type:
- xapp`, `slot-snap-type in allow-connection in plug rule for interface "iface" contains an invalid element: "xapp"`},
{`iface:
allow-connection:
slot-snap-ids:
- foo`, `allow-connection in plug rule for interface "iface" must specify at least one of plug-attributes, slot-attributes, slot-snap-type, slot-publisher-id, slot-snap-id, on-classic`},
{`iface:
deny-connection:
slot-snap-ids:
- foo`, `deny-connection in plug rule for interface "iface" must specify at least one of plug-attributes, slot-attributes, slot-snap-type, slot-publisher-id, slot-snap-id, on-classic`},
{`iface:
allow-auto-connection:
slot-snap-ids:
- foo`, `allow-auto-connection in plug rule for interface "iface" must specify at least one of plug-attributes, slot-attributes, slot-snap-type, slot-publisher-id, slot-snap-id, on-classic`},
{`iface:
deny-auto-connection:
slot-snap-ids:
- foo`, `deny-auto-connection in plug rule for interface "iface" must specify at least one of plug-attributes, slot-attributes, slot-snap-type, slot-publisher-id, slot-snap-id, on-classic`},
{`iface:
allow-connect: true`, `plug rule for interface "iface" must specify at least one of allow-installation, deny-installation, allow-connection, deny-connection, allow-auto-connection, deny-auto-connection`},
}
for _, t := range tests {
m, err := asserts.ParseHeaders([]byte(t.stanza))
c.Assert(err, IsNil, Commentf(t.stanza))
_, err = asserts.CompilePlugRule("iface", m["iface"])
c.Check(err, ErrorMatches, t.err, Commentf(t.stanza))
}
}
func (s *plugSlotRulesSuite) TestPlugRuleFeatures(c *C) {
combos := []struct {
subrule string
attrConstraints []string
}{
{"allow-installation", []string{"plug-attributes"}},
{"deny-installation", []string{"plug-attributes"}},
{"allow-connection", []string{"plug-attributes", "slot-attributes"}},
{"deny-connection", []string{"plug-attributes", "slot-attributes"}},
{"allow-auto-connection", []string{"plug-attributes", "slot-attributes"}},
{"deny-auto-connection", []string{"plug-attributes", "slot-attributes"}},
}
for _, combo := range combos {
for _, attrConstr := range combo.attrConstraints {
attrConstraintMap := map[string]interface{}{
"a": "ATTR",
"other": []interface{}{"x", "y"},
}
ruleMap := map[string]interface{}{
combo.subrule: map[string]interface{}{
attrConstr: attrConstraintMap,
},
}
rule, err := asserts.CompilePlugRule("iface", ruleMap)
c.Assert(err, IsNil)
c.Check(asserts.RuleFeature(rule, "dollar-attr-constraints"), Equals, false, Commentf("%v", ruleMap))
attrConstraintMap["a"] = "$MISSING"
rule, err = asserts.CompilePlugRule("iface", ruleMap)
c.Assert(err, IsNil)
c.Check(asserts.RuleFeature(rule, "dollar-attr-constraints"), Equals, true, Commentf("%v", ruleMap))
// covers also alternation
attrConstraintMap["a"] = []interface{}{"$SLOT(a)"}
rule, err = asserts.CompilePlugRule("iface", ruleMap)
c.Assert(err, IsNil)
c.Check(asserts.RuleFeature(rule, "dollar-attr-constraints"), Equals, true, Commentf("%v", ruleMap))
}
}
}
func (s *plugSlotRulesSuite) TestCompileSlotRuleAllAllowDenyStanzas(c *C) {
m, err := asserts.ParseHeaders([]byte(`iface:
allow-installation:
slot-attributes:
a1: A1
deny-installation:
slot-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.CompileSlotRule("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].SlotAttributes, "a1", "A1")
c.Assert(rule.DenyInstallation, HasLen, 1)
checkAttrs(c, rule.DenyInstallation[0].SlotAttributes, "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) TestCompileSlotRuleAllAllowDenyOrStanzas(c *C) {
m, err := asserts.ParseHeaders([]byte(`iface:
allow-installation:
-
slot-attributes:
a1: A1
-
slot-attributes:
a1: A1alt
deny-installation:
-
slot-attributes:
a2: A2