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api_sideload_n_try_test.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2014-2022 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 daemon_test
import (
"bytes"
"context"
"crypto/rand"
"errors"
"fmt"
"net/http"
"os"
"path/filepath"
"regexp"
"time"
"gopkg.in/check.v1"
"github.com/snapcore/snapd/asserts"
"github.com/snapcore/snapd/asserts/assertstest"
"github.com/snapcore/snapd/client"
"github.com/snapcore/snapd/daemon"
"github.com/snapcore/snapd/dirs"
"github.com/snapcore/snapd/logger"
"github.com/snapcore/snapd/overlord/assertstate/assertstatetest"
"github.com/snapcore/snapd/overlord/snapstate"
"github.com/snapcore/snapd/overlord/snapstate/sequence"
"github.com/snapcore/snapd/overlord/snapstate/snapstatetest"
"github.com/snapcore/snapd/overlord/state"
"github.com/snapcore/snapd/sandbox"
"github.com/snapcore/snapd/snap"
"github.com/snapcore/snapd/snap/naming"
"github.com/snapcore/snapd/snap/snaptest"
"github.com/snapcore/snapd/strutil"
"github.com/snapcore/snapd/testutil"
)
var (
_ = check.Suite(&sideloadSuite{})
_ = check.Suite(&trySuite{})
)
type sideloadSuite struct {
apiBaseSuite
}
func (s *sideloadSuite) SetUpTest(c *check.C) {
s.apiBaseSuite.SetUpTest(c)
s.expectWriteAccess(daemon.AuthenticatedAccess{Polkit: "io.snapcraft.snapd.manage"})
}
func (s *sideloadSuite) markSeeded(d *daemon.Daemon) {
st := d.Overlord().State()
st.Lock()
defer st.Unlock()
st.Set("seeded", true)
model := s.Brands.Model("can0nical", "pc", map[string]interface{}{
"architecture": "amd64",
"gadget": "gadget",
"kernel": "kernel",
})
snapstatetest.MockDeviceModel(model)
}
var sideLoadBodyWithoutDevMode = "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"dangerous\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap-path\"\r\n" +
"\r\n" +
"a/b/local.snap\r\n" +
"----hello--\r\n"
func (s *sideloadSuite) TestSideloadSnapOnNonDevModeDistro(c *check.C) {
// try a multipart/form-data upload
body := sideLoadBodyWithoutDevMode
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
chgSummary, systemRestartImmediate := s.sideloadCheck(c, body, head, "local", snapstate.Flags{RemoveSnapPath: true, Transaction: client.TransactionPerSnap})
c.Check(chgSummary, check.Equals, `Install "local" snap from file "a/b/local.snap"`)
c.Check(systemRestartImmediate, check.Equals, false)
}
func (s *sideloadSuite) TestSideloadSnapOnDevModeDistro(c *check.C) {
// try a multipart/form-data upload
body := sideLoadBodyWithoutDevMode
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
restore := sandbox.MockForceDevMode(true)
defer restore()
flags := snapstate.Flags{RemoveSnapPath: true, Transaction: client.TransactionPerSnap}
chgSummary, _ := s.sideloadCheck(c, body, head, "local", flags)
c.Check(chgSummary, check.Equals, `Install "local" snap from file "a/b/local.snap"`)
}
func (s *sideloadSuite) TestSideloadSnapDevMode(c *check.C) {
body := "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"devmode\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n"
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
// try a multipart/form-data upload
flags := snapstate.Flags{RemoveSnapPath: true, Transaction: client.TransactionPerSnap}
flags.DevMode = true
chgSummary, _ := s.sideloadCheck(c, body, head, "local", flags)
c.Check(chgSummary, check.Equals, `Install "local" snap from file "x"`)
}
func (s *sideloadSuite) TestSideloadSnapQuotaGroup(c *check.C) {
body := "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"devmode\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"quota-group\"\r\n" +
"\r\n" +
"foo\r\n" +
"----hello--\r\n"
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
// try a multipart/form-data upload
flags := snapstate.Flags{
RemoveSnapPath: true,
DevMode: true,
Transaction: client.TransactionPerSnap,
QuotaGroupName: "foo",
}
chgSummary, _ := s.sideloadCheck(c, body, head, "local", flags)
c.Check(chgSummary, check.Equals, `Install "local" snap from file "x"`)
}
func (s *sideloadSuite) TestSideloadSnapJailMode(c *check.C) {
body := "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"jailmode\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"dangerous\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n"
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
// try a multipart/form-data upload
flags := snapstate.Flags{JailMode: true, RemoveSnapPath: true, Transaction: client.TransactionPerSnap}
chgSummary, _ := s.sideloadCheck(c, body, head, "local", flags)
c.Check(chgSummary, check.Equals, `Install "local" snap from file "x"`)
}
func (s *sideloadSuite) sideloadCheck(c *check.C, content string, head map[string]string, expectedInstanceName string, expectedFlags snapstate.Flags) (summary string, systemRestartImmediate bool) {
d := s.daemonWithFakeSnapManager(c)
s.markSeeded(d)
soon := 0
var origEnsureStateSoon func(*state.State)
origEnsureStateSoon, restore := daemon.MockEnsureStateSoon(func(st *state.State) {
soon++
origEnsureStateSoon(st)
})
defer restore()
c.Assert(expectedInstanceName != "", check.Equals, true, check.Commentf("expected instance name must be set"))
mockedName, _ := snap.SplitInstanceName(expectedInstanceName)
// setup done
installQueue := []string{}
defer daemon.MockUnsafeReadSnapInfo(func(path string) (*snap.Info, error) {
return &snap.Info{SuggestedName: mockedName}, nil
})()
defer daemon.MockSnapstateInstallWithGoal(func(ctx context.Context, st *state.State, g snapstate.InstallGoal, opts snapstate.Options) ([]*snap.Info, []*state.TaskSet, error) {
goal, ok := g.(*storeInstallGoalRecorder)
c.Assert(ok, check.Equals, true, check.Commentf("unexpected InstallGoal type %T", g))
c.Assert(goal.snaps, check.HasLen, 1)
// NOTE: ubuntu-core is not installed in developer mode
c.Check(opts.Flags, check.Equals, snapstate.Flags{})
installQueue = append(installQueue, goal.snaps[0].InstanceName)
t := st.NewTask("fake-install-snap", "Doing a fake install")
return []*snap.Info{{}}, []*state.TaskSet{state.NewTaskSet(t)}, nil
})()
defer daemon.MockSnapstateInstallPath(func(s *state.State, si *snap.SideInfo, path, name, channel string, flags snapstate.Flags, prqt snapstate.PrereqTracker) (*state.TaskSet, *snap.Info, error) {
c.Check(flags, check.DeepEquals, expectedFlags)
c.Check(path, testutil.FileEquals, "xyzzy")
c.Check(name, check.Equals, expectedInstanceName)
installQueue = append(installQueue, si.RealName+"::"+path)
t := s.NewTask("fake-install-snap", "Doing a fake install")
return state.NewTaskSet(t), &snap.Info{SuggestedName: name}, nil
})()
buf := bytes.NewBufferString(content)
req, err := http.NewRequest("POST", "/v2/snaps", buf)
c.Assert(err, check.IsNil)
for k, v := range head {
req.Header.Set(k, v)
}
rsp := s.asyncReq(c, req, nil)
n := 1
c.Assert(installQueue, check.HasLen, n)
c.Check(installQueue[n-1], check.Matches, "local::.*/"+regexp.QuoteMeta(dirs.LocalInstallBlobTempPrefix)+".*")
st := d.Overlord().State()
st.Lock()
defer st.Unlock()
chg := st.Change(rsp.Change)
c.Assert(chg, check.NotNil)
c.Check(soon, check.Equals, 1)
c.Assert(chg.Tasks(), check.HasLen, n)
st.Unlock()
s.waitTrivialChange(c, chg)
st.Lock()
c.Check(chg.Kind(), check.Equals, "install-snap")
var names []string
err = chg.Get("snap-names", &names)
c.Assert(err, check.IsNil)
c.Check(names, check.DeepEquals, []string{expectedInstanceName})
var apiData map[string]interface{}
err = chg.Get("api-data", &apiData)
c.Assert(err, check.IsNil)
c.Check(apiData, check.DeepEquals, map[string]interface{}{
"snap-name": expectedInstanceName,
"snap-names": []interface{}{expectedInstanceName},
})
summary = chg.Summary()
err = chg.Get("system-restart-immediate", &systemRestartImmediate)
if err != nil && !errors.Is(err, state.ErrNoState) {
c.Error(err)
}
return summary, systemRestartImmediate
}
const sideLoadComponentBody = "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"dangerous\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap-path\"\r\n" +
"\r\n" +
"a/b/local+localcomp.comp\r\n" +
"----hello--\r\n"
func (s *sideloadSuite) TestSideloadComponent(c *check.C) {
// try a multipart/form-data upload
body := sideLoadComponentBody
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
flags := snapstate.Flags{RemoveSnapPath: true, Transaction: client.TransactionPerSnap}
csi := snap.NewComponentSideInfo(naming.NewComponentRef("local", "comp"), snap.Revision{})
chgSummary, systemRestartImmediate := s.sideloadComponentCheck(c, body, head, "local", flags, csi)
c.Check(chgSummary, check.Equals, `Install "comp" component for "local" snap from file "a/b/local+localcomp.comp"`)
c.Check(systemRestartImmediate, check.Equals, false)
}
func (s *sideloadSuite) TestSideloadComponentInstanceName(c *check.C) {
// try a multipart/form-data upload
body := sideLoadComponentBody +
"Content-Disposition: form-data; name=\"name\"\r\n" +
"\r\n" +
"local_instance\r\n" +
"----hello--\r\n"
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
flags := snapstate.Flags{RemoveSnapPath: true, Transaction: client.TransactionPerSnap}
csi := snap.NewComponentSideInfo(naming.NewComponentRef("local", "comp"), snap.Revision{})
chgSummary, systemRestartImmediate := s.sideloadComponentCheck(c, body, head, "local_instance", flags, csi)
c.Check(chgSummary, check.Equals, `Install "comp" component for "local_instance" snap from file "a/b/local+localcomp.comp"`)
c.Check(systemRestartImmediate, check.Equals, false)
}
func (s *sideloadSuite) TestSideloadComponentNoDangerousFlag(c *check.C) {
logbuf, r := logger.MockLogger()
defer r()
body := "----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap-path\"\r\n" +
"\r\n" +
"a/b/local+localcomp.comp\r\n" +
"----hello--\r\n"
d := s.daemonWithFakeSnapManager(c)
s.markSeeded(d)
defer daemon.MockUnsafeReadSnapInfo(func(path string) (*snap.Info, error) {
return nil, daemon.BadRequest("mocking error to force reading as component")
})()
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
rspe := s.errorReq(c, req, nil)
c.Check(logbuf.String(), testutil.Contains,
"cannot sideload as a component: only unasserted installation of local component with --dangerous is supported at the moment")
c.Check(rspe.Message, check.Equals,
`cannot find signatures with metadata for snap "a/b/local+localcomp.comp"`)
}
func (s *sideloadSuite) TestSideloadComponentForNotInstalledSnap(c *check.C) {
logbuf, r := logger.MockLogger()
defer r()
body := "----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"dangerous\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap-path\"\r\n" +
"\r\n" +
"a/b/local+localcomp.comp\r\n" +
"----hello--\r\n"
d := s.daemonWithFakeSnapManager(c)
s.markSeeded(d)
defer daemon.MockUnsafeReadSnapInfo(func(path string) (*snap.Info, error) {
return nil, daemon.BadRequest("mocking error to force reading as component")
})()
defer daemon.MockReadComponentInfoFromCont(func(tempPath string, csi *snap.ComponentSideInfo) (*snap.ComponentInfo, error) {
return &snap.ComponentInfo{
Component: naming.NewComponentRef("local", "comp"),
Type: snap.StandardComponent,
Version: "1.0",
}, nil
})()
st := s.d.Overlord().State()
st.Lock()
ssi := &snap.SideInfo{RealName: "other", Revision: snap.R(1),
SnapID: "some-other-snap-id"}
snapstate.Set(st, "other", &snapstate.SnapState{
Active: true,
Sequence: snapstatetest.NewSequenceFromRevisionSideInfos(
[]*sequence.RevisionSideState{
sequence.NewRevisionSideState(ssi, nil)}),
Current: snap.R(1),
})
st.Unlock()
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
rspe := s.errorReq(c, req, nil)
c.Check(logbuf.String(), testutil.Contains,
`cannot sideload as a snap: cannot read snap file: mocking error to force reading as component`)
c.Check(logbuf.String(), testutil.Contains,
`cannot sideload as a component: snap owning "local+comp" not installed`)
c.Check(rspe.Message, check.Equals, `snap owning "local+comp" not installed`)
c.Check(rspe.Kind, check.Equals, client.ErrorKindSnapNotInstalled)
}
func (s *sideloadSuite) sideloadComponentCheck(c *check.C, content string,
head map[string]string, expectedInstanceName string, expectedFlags snapstate.Flags,
expectedCompSideInfo *snap.ComponentSideInfo) (
summary string, systemRestartImmediate bool) {
d := s.daemonWithFakeSnapManager(c)
s.markSeeded(d)
st := s.d.Overlord().State()
st.Lock()
defer st.Unlock()
ssi := &snap.SideInfo{RealName: "local", Revision: snap.R(1),
SnapID: "some-snap-id"}
snapstate.Set(st, expectedInstanceName, &snapstate.SnapState{
Active: true,
Sequence: snapstatetest.NewSequenceFromRevisionSideInfos(
[]*sequence.RevisionSideState{
sequence.NewRevisionSideState(ssi, nil)}),
Current: snap.R(1),
})
st.Unlock()
soon := 0
var origEnsureStateSoon func(*state.State)
origEnsureStateSoon, restore := daemon.MockEnsureStateSoon(func(st *state.State) {
soon++
origEnsureStateSoon(st)
})
defer restore()
c.Assert(expectedInstanceName != "", check.Equals, true, check.Commentf("expected instance name must be set"))
// setup done
installQueue := []string{}
defer daemon.MockUnsafeReadSnapInfo(func(path string) (*snap.Info, error) {
return nil, daemon.BadRequest("mocking error to force reading as component")
})()
defer daemon.MockReadComponentInfoFromCont(func(tempPath string, csi *snap.ComponentSideInfo) (*snap.ComponentInfo, error) {
return snap.NewComponentInfo(
expectedCompSideInfo.Component,
snap.StandardComponent,
"1.0", "", "", "", nil,
), nil
})()
defer daemon.MockSnapstateInstallComponentPath(func(st *state.State, csi *snap.ComponentSideInfo, info *snap.Info,
path string, flags snapstate.Flags) (*state.TaskSet, error) {
c.Check(csi, check.DeepEquals, expectedCompSideInfo)
c.Check(flags, check.DeepEquals, expectedFlags)
c.Check(path, testutil.FileEquals, "xyzzy")
installQueue = append(installQueue, csi.Component.String()+"::"+path)
t := st.NewTask("fake-install-component", "Doing a fake install")
return state.NewTaskSet(t), nil
})()
buf := bytes.NewBufferString(content)
req, err := http.NewRequest("POST", "/v2/snaps", buf)
c.Assert(err, check.IsNil)
for k, v := range head {
req.Header.Set(k, v)
}
rsp := s.asyncReq(c, req, nil)
n := 1
c.Assert(installQueue, check.HasLen, n)
c.Check(installQueue[n-1], check.Matches, "local\\+comp::.*/"+regexp.QuoteMeta(dirs.LocalInstallBlobTempPrefix)+".*")
st.Lock()
chg := st.Change(rsp.Change)
c.Assert(chg, check.NotNil)
c.Check(soon, check.Equals, 1)
c.Assert(chg.Tasks(), check.HasLen, n)
st.Unlock()
s.waitTrivialChange(c, chg)
st.Lock()
c.Check(chg.Kind(), check.Equals, "install-component")
var names []string
err = chg.Get("snap-names", &names)
c.Assert(err, check.IsNil)
c.Check(names, check.DeepEquals, []string{expectedInstanceName})
var apiData map[string]interface{}
err = chg.Get("api-data", &apiData)
c.Assert(err, check.IsNil)
c.Check(apiData, check.DeepEquals, map[string]interface{}{
"components": map[string]interface{}{
expectedInstanceName: []interface{}{expectedCompSideInfo.Component.ComponentName}},
})
summary = chg.Summary()
err = chg.Get("system-restart-immediate", &systemRestartImmediate)
if err != nil && !errors.Is(err, state.ErrNoState) {
c.Error(err)
}
return summary, systemRestartImmediate
}
func (s *sideloadSuite) TestSideloadSnapJailModeAndDevmode(c *check.C) {
body := "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"jailmode\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"devmode\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n"
s.daemonWithOverlordMockAndStore()
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
rspe := s.errorReq(c, req, nil)
c.Check(rspe.Message, check.Equals, "cannot use devmode and jailmode flags together")
}
func (s *sideloadSuite) TestSideloadSnapJailModeInDevModeOS(c *check.C) {
body := "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"jailmode\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n"
s.daemonWithOverlordMockAndStore()
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
restore := sandbox.MockForceDevMode(true)
defer restore()
rspe := s.errorReq(c, req, nil)
c.Check(rspe.Message, check.Equals, "this system cannot honour the jailmode flag")
}
func (s *sideloadSuite) TestLocalInstallSnapDeriveSideInfo(c *check.C) {
d := s.daemonWithOverlordMockAndStore()
s.markSeeded(d)
// add the assertions first
st := d.Overlord().State()
fooSnap := snaptest.MakeTestSnapWithFiles(c, `name: foo
version: 1`, nil)
digest, size, err := asserts.SnapFileSHA3_384(fooSnap)
c.Assert(err, check.IsNil)
fooSnapBytes, err := os.ReadFile(fooSnap)
c.Assert(err, check.IsNil)
dev1Acct := assertstest.NewAccount(s.StoreSigning, "devel1", nil, "")
snapDecl, err := s.StoreSigning.Sign(asserts.SnapDeclarationType, map[string]interface{}{
"series": "16",
"snap-id": "foo-id",
"snap-name": "foo",
"publisher-id": dev1Acct.AccountID(),
"timestamp": time.Now().Format(time.RFC3339),
}, nil, "")
c.Assert(err, check.IsNil)
snapRev, err := s.StoreSigning.Sign(asserts.SnapRevisionType, map[string]interface{}{
"snap-sha3-384": digest,
"snap-size": fmt.Sprintf("%d", size),
"snap-id": "foo-id",
"snap-revision": "41",
"developer-id": dev1Acct.AccountID(),
"timestamp": time.Now().Format(time.RFC3339),
}, nil, "")
c.Assert(err, check.IsNil)
func() {
st.Lock()
defer st.Unlock()
assertstatetest.AddMany(st, s.StoreSigning.StoreAccountKey(""), dev1Acct, snapDecl, snapRev)
}()
bodyBuf := new(bytes.Buffer)
bodyBuf.WriteString("----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"foo.snap\"\r\n\r\n")
bodyBuf.Write(fooSnapBytes)
bodyBuf.WriteString("\r\n----hello--\r\n")
req, err := http.NewRequest("POST", "/v2/snaps", bodyBuf)
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
defer daemon.MockSnapstateInstallPath(func(s *state.State, si *snap.SideInfo, path, name, channel string, flags snapstate.Flags, prqt snapstate.PrereqTracker) (*state.TaskSet, *snap.Info, error) {
c.Check(flags, check.Equals, snapstate.Flags{RemoveSnapPath: true, Transaction: client.TransactionPerSnap})
c.Check(si, check.DeepEquals, &snap.SideInfo{
RealName: "foo",
SnapID: "foo-id",
Revision: snap.R(41),
})
return state.NewTaskSet(), &snap.Info{SuggestedName: "foo"}, nil
})()
rsp := s.asyncReq(c, req, nil)
st.Lock()
defer st.Unlock()
chg := st.Change(rsp.Change)
c.Assert(chg, check.NotNil)
c.Check(chg.Summary(), check.Equals, `Install "foo" snap from file "foo.snap"`)
var names []string
err = chg.Get("snap-names", &names)
c.Assert(err, check.IsNil)
c.Check(names, check.DeepEquals, []string{"foo"})
var apiData map[string]interface{}
err = chg.Get("api-data", &apiData)
c.Assert(err, check.IsNil)
c.Check(apiData, check.DeepEquals, map[string]interface{}{
"snap-name": "foo",
"snap-names": []interface{}{"foo"},
})
}
func (s *sideloadSuite) TestSideloadSnapNoSignaturesDangerOff(c *check.C) {
body := "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n"
d := s.daemonWithOverlordMockAndStore()
s.markSeeded(d)
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
// this is the prefix used for tempfiles for sideloading
glob := filepath.Join(os.TempDir(), "snapd-sideload-pkg-*")
glbBefore, _ := filepath.Glob(glob)
rspe := s.errorReq(c, req, nil)
c.Check(rspe.Message, check.Equals, `cannot find signatures with metadata for snap "x"`)
glbAfter, _ := filepath.Glob(glob)
c.Check(len(glbBefore), check.Equals, len(glbAfter))
}
func (s *sideloadSuite) TestSideloadSnapNotValidFormFile(c *check.C) {
s.daemon(c)
// try a multipart/form-data upload with missing "name"
content := "" +
"----hello--\r\n" +
"Content-Disposition: form-data; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n"
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
buf := bytes.NewBufferString(content)
req, err := http.NewRequest("POST", "/v2/snaps", buf)
c.Assert(err, check.IsNil)
for k, v := range head {
req.Header.Set(k, v)
}
rspe := s.errorReq(c, req, nil)
c.Assert(rspe.Message, check.Matches, `cannot find "snap" file field in provided multipart/form-data payload`)
}
func (s *sideloadSuite) TestSideloadSnapChangeConflict(c *check.C) {
body := "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"dangerous\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n"
d := s.daemonWithOverlordMockAndStore()
s.markSeeded(d)
defer daemon.MockUnsafeReadSnapInfo(func(path string) (*snap.Info, error) {
return &snap.Info{SuggestedName: "foo"}, nil
})()
defer daemon.MockSnapstateInstallPath(func(s *state.State, si *snap.SideInfo, path, name, channel string, flags snapstate.Flags, prqt snapstate.PrereqTracker) (*state.TaskSet, *snap.Info, error) {
return nil, nil, &snapstate.ChangeConflictError{Snap: "foo"}
})()
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
rspe := s.errorReq(c, req, nil)
c.Check(rspe.Kind, check.Equals, client.ErrorKindSnapChangeConflict)
}
func (s *sideloadSuite) TestSideloadSnapInstanceName(c *check.C) {
// try a multipart/form-data upload
body := sideLoadBodyWithoutDevMode +
"Content-Disposition: form-data; name=\"name\"\r\n" +
"\r\n" +
"local_instance\r\n" +
"----hello--\r\n"
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
chgSummary, _ := s.sideloadCheck(c, body, head, "local_instance", snapstate.Flags{RemoveSnapPath: true, Transaction: client.TransactionPerSnap})
c.Check(chgSummary, check.Equals, `Install "local_instance" snap from file "a/b/local.snap"`)
}
func (s *sideloadSuite) TestSideloadSnapInstanceNameNoKey(c *check.C) {
// try a multipart/form-data upload
body := sideLoadBodyWithoutDevMode +
"Content-Disposition: form-data; name=\"name\"\r\n" +
"\r\n" +
"local\r\n" +
"----hello--\r\n"
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
chgSummary, _ := s.sideloadCheck(c, body, head, "local", snapstate.Flags{RemoveSnapPath: true, Transaction: client.TransactionPerSnap})
c.Check(chgSummary, check.Equals, `Install "local" snap from file "a/b/local.snap"`)
}
func (s *sideloadSuite) TestSideloadSnapInstanceNameMismatch(c *check.C) {
d := s.daemonWithFakeSnapManager(c)
s.markSeeded(d)
defer daemon.MockUnsafeReadSnapInfo(func(path string) (*snap.Info, error) {
return &snap.Info{SuggestedName: "bar"}, nil
})()
body := sideLoadBodyWithoutDevMode +
"Content-Disposition: form-data; name=\"name\"\r\n" +
"\r\n" +
"foo_instance\r\n" +
"----hello--\r\n"
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
rspe := s.errorReq(c, req, nil)
c.Check(rspe.Message, check.Equals, `instance name "foo_instance" does not match snap name "bar"`)
}
func (s *sideloadSuite) TestInstallPathUnaliased(c *check.C) {
body := "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"devmode\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"unaliased\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n"
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
// try a multipart/form-data upload
flags := snapstate.Flags{Unaliased: true, RemoveSnapPath: true, DevMode: true, Transaction: client.TransactionPerSnap}
chgSummary, _ := s.sideloadCheck(c, body, head, "local", flags)
c.Check(chgSummary, check.Equals, `Install "local" snap from file "x"`)
}
func (s *sideloadSuite) TestInstallPathSystemRestartImmediate(c *check.C) {
body := "" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"x\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"devmode\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"system-restart-immediate\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n"
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
// try a multipart/form-data upload
flags := snapstate.Flags{RemoveSnapPath: true, DevMode: true, Transaction: client.TransactionPerSnap}
chgSummary, systemRestartImmediate := s.sideloadCheck(c, body, head, "local", flags)
c.Check(chgSummary, check.Equals, `Install "local" snap from file "x"`)
c.Check(systemRestartImmediate, check.Equals, true)
}
func (s *sideloadSuite) TestFormdataIsWrittenToCorrectTmpLocation(c *check.C) {
oldTempDir := os.Getenv("TMPDIR")
defer func() {
c.Assert(os.Setenv("TMPDIR", oldTempDir), check.IsNil)
}()
tmpDir := c.MkDir()
c.Assert(os.Setenv("TMPDIR", tmpDir), check.IsNil)
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
chgSummary, _ := s.sideloadCheck(c, sideLoadBodyWithoutDevMode, head, "local", snapstate.Flags{RemoveSnapPath: true, Transaction: client.TransactionPerSnap})
c.Check(chgSummary, check.Equals, `Install "local" snap from file "a/b/local.snap"`)
files, err := os.ReadDir(tmpDir)
c.Assert(err, check.IsNil)
c.Assert(files, check.HasLen, 0)
matches, err := filepath.Glob(filepath.Join(dirs.SnapBlobDir, dirs.LocalInstallBlobTempPrefix+"*"))
c.Assert(err, check.IsNil)
c.Assert(matches, check.HasLen, 1)
c.Assert(err, check.IsNil)
c.Assert(matches[0], testutil.FileEquals, "xyzzy")
}
func (s *sideloadSuite) TestSideloadExceedMemoryLimit(c *check.C) {
s.daemonWithOverlordMockAndStore()
// check that there's a memory limit for the sum of the parts, not just each
bufs := make([][]byte, 2)
var body string
for i := range bufs {
bufs[i] = make([]byte, daemon.MaxReadBuflen/2+1)
_, err := rand.Read(bufs[i])
c.Assert(err, check.IsNil)
body += "--foo\r\n" +
"Content-Disposition: form-data; name=\"stuff\"\r\n" +
"\r\n" +
string(bufs[i]) +
"\r\n"
}
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=foo")
apiErr := s.errorReq(c, req, nil)
c.Check(apiErr.Message, check.Equals, `cannot read form data: exceeds memory limit`)
}
func (s *sideloadSuite) TestSideloadUsePreciselyAllMemory(c *check.C) {
s.daemonWithOverlordMockAndStore()
buf := make([]byte, daemon.MaxReadBuflen)
_, err := rand.Read(buf)
c.Assert(err, check.IsNil)
body := "----hello--\r\n" +
"Content-Disposition: form-data; name=\"devmode\"\r\n" +
"\r\n" +
string(buf) +
"\r\n" +
"----hello--\r\n"
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
// using the maximum memory doesn't cause the failure (not having a snap file does)
apiErr := s.errorReq(c, req, nil)
c.Check(apiErr.Message, check.Equals, `cannot find "snap" file field in provided multipart/form-data payload`)
}
func (s *sideloadSuite) TestSideloadCleanUpTempFilesIfRequestFailed(c *check.C) {
s.daemonWithOverlordMockAndStore()
// write file parts
body := "----hello--\r\n"
for _, name := range []string{"one", "two"} {
body += fmt.Sprintf(
"Content-Disposition: form-data; name=\"snap\"; filename=\"%s\"\r\n"+
"\r\n"+
"xyzzy\r\n", name)
}
// make the request fail
buf := make([]byte, daemon.MaxReadBuflen+1)
_, err := rand.Read(buf)
c.Assert(err, check.IsNil)
body += "----hello--\r\n" +
"Content-Disposition: form-data; name=\"devmode\"\r\n" +
"\r\n" +
string(buf) +
"\r\n" +
"----hello--\r\n"
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
apiErr := s.errorReq(c, req, nil)
c.Check(apiErr, check.NotNil)
matches, err := filepath.Glob(filepath.Join(dirs.SnapBlobDir, "*"))
c.Assert(err, check.IsNil)
c.Check(matches, check.HasLen, 0)
}
func (s *sideloadSuite) TestSideloadCleanUpUnusedTempSnapFiles(c *check.C) {
body := "----hello--\r\n" +
"Content-Disposition: form-data; name=\"devmode\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n" +
"Content-Disposition: form-data; name=\"snap\"; filename=\"one\"\r\n" +
"\r\n" +
"xyzzy\r\n" +
"----hello--\r\n" +
// only files with the name 'snap' are used
"Content-Disposition: form-data; name=\"not-snap\"; filename=\"two\"\r\n" +
"\r\n" +
"bla\r\n" +
"----hello--\r\n"
head := map[string]string{"Content-Type": "multipart/thing; boundary=--hello--"}
chgSummary, _ := s.sideloadCheck(c, body, head, "local", snapstate.Flags{RemoveSnapPath: true, DevMode: true, Transaction: client.TransactionPerSnap})
c.Check(chgSummary, check.Equals, `Install "local" snap from file "one"`)
matches, err := filepath.Glob(filepath.Join(dirs.SnapBlobDir, dirs.LocalInstallBlobTempPrefix+"*"))
c.Assert(err, check.IsNil)
// only the file passed into the change (the request's first file) remains
c.Check(matches, check.HasLen, 1)
}
func (s *sideloadSuite) TestSideloadManySnaps(c *check.C) {
d := s.daemonWithFakeSnapManager(c)
s.markSeeded(d)
expectedFlags := &snapstate.Flags{RemoveSnapPath: true, DevMode: true, Transaction: client.TransactionAllSnaps}
restore := daemon.MockSnapstateInstallPathMany(func(_ context.Context, s *state.State, infos []*snap.SideInfo, tmpPaths []string, userID int, flags *snapstate.Flags) ([]*state.TaskSet, error) {
c.Check(flags, check.DeepEquals, expectedFlags)
c.Check(userID, check.Not(check.Equals), 0)
var tss []*state.TaskSet
for i, si := range infos {
c.Check(tmpPaths[i], testutil.FileEquals, si.RealName)
ts := state.NewTaskSet(s.NewTask("fake-install-snap", fmt.Sprintf("Doing a fake install of %q", si.RealName)))
tss = append(tss, ts)
}
return tss, nil
})
defer restore()
snaps := []string{"one", "two"}
var i int
readRest := daemon.MockUnsafeReadSnapInfo(func(string) (*snap.Info, error) {
info := &snap.Info{SuggestedName: snaps[i]}
i++
return info, nil
})
defer readRest()
body := "----hello--\r\n" +
"Content-Disposition: form-data; name=\"devmode\"\r\n" +
"\r\n" +
"true\r\n" +
"----hello--\r\n"
body += "Content-Disposition: form-data; name=\"transaction\"\r\n" +
"\r\n" +
"all-snaps\r\n" +
"----hello--\r\n"
prefixed := make([]string, len(snaps))
for i, snap := range snaps {
prefixed[i] = "file-" + snap
body += "Content-Disposition: form-data; name=\"snap\"; filename=\"" + prefixed[i] + "\"\r\n" +
"\r\n" +
snap + "\r\n" +
"----hello--\r\n"
}
req, err := http.NewRequest("POST", "/v2/snaps", bytes.NewBufferString(body))
c.Assert(err, check.IsNil)
req.Header.Set("Content-Type", "multipart/thing; boundary=--hello--")
s.asUserAuth(c, req)
rsp := s.asyncReq(c, req, s.authUser)
st := d.Overlord().State()
st.Lock()
defer st.Unlock()
chg := st.Change(rsp.Change)
c.Assert(chg, check.NotNil)