func (s *filestorageSuite) TestListHidesTempDir(c *gc.C) {
err := s.writer.Put("test-write", bytes.NewReader(nil), 0)
c.Assert(err, jc.ErrorIsNil)
files, err := storage.List(s.reader, "")
c.Assert(err, jc.ErrorIsNil)
c.Check(files, gc.DeepEquals, []string{"test-write"})
files, err = storage.List(s.reader, "no-such-directory")
c.Assert(err, jc.ErrorIsNil)
c.Check(files, gc.DeepEquals, []string(nil))
// We also pretend the .tmp directory doesn't exist. If you call a
// directory that doesn't exist, we just return an empty list of
// strings, so we force the same behavior for '.tmp'
// we poke in a file so it would have something to return
s.createFile(c, ".tmp/test-file")
files, err = storage.List(s.reader, ".tmp")
c.Assert(err, jc.ErrorIsNil)
c.Check(files, gc.DeepEquals, []string(nil))
// For consistency, we refuse all other possibilities as well
s.createFile(c, ".tmp/foo/bar")
files, err = storage.List(s.reader, ".tmp/foo")
c.Assert(err, jc.ErrorIsNil)
c.Check(files, gc.DeepEquals, []string(nil))
s.createFile(c, ".tmpother/foo")
files, err = storage.List(s.reader, ".tmpother")
c.Assert(err, jc.ErrorIsNil)
c.Check(files, gc.DeepEquals, []string(nil))
}
// RemoveAll is specified in the StorageWriter interface.
func (stor *maasStorage) RemoveAll() error {
names, err := storage.List(stor, "")
if err != nil {
return err
}
// Remove all the objects in parallel so that we incur fewer round-trips.
// If we're in danger of having hundreds of objects,
// we'll want to change this to limit the number
// of concurrent operations.
var wg sync.WaitGroup
wg.Add(len(names))
errc := make(chan error, len(names))
for _, name := range names {
name := name
go func() {
defer wg.Done()
if err := stor.Remove(name); err != nil {
errc <- err
}
}()
}
wg.Wait()
select {
case err := <-errc:
return fmt.Errorf("cannot delete all provider state: %v", err)
default:
}
return nil
}
func (s *filestorageSuite) TestList(c *gc.C) {
names := []string{
"a/b/c",
"a/bb",
"a/c",
"aa",
"b/c/d",
}
for _, name := range names {
s.createFile(c, name)
}
type test struct {
prefix string
expected []string
}
for i, test := range []test{
{"a", []string{"a/b/c", "a/bb", "a/c", "aa"}},
{"a/b", []string{"a/b/c", "a/bb"}},
{"a/b/c", []string{"a/b/c"}},
{"", names},
} {
c.Logf("test %d: prefix=%q", i, test.prefix)
files, err := storage.List(s.reader, test.prefix)
c.Assert(err, gc.IsNil)
c.Assert(files, gc.DeepEquals, test.expected)
}
}
func (s *filestorageSuite) TestList(c *gc.C) {
names := []string{
"a/b/c",
"a/bb",
"a/c",
"aa",
"b/c/d",
}
for _, name := range names {
s.createFile(c, name)
}
type test struct {
prefix string
expected []string
}
for i, test := range []test{
{"a", []string{"a/b/c", "a/bb", "a/c", "aa"}},
{"a/b", []string{"a/b/c", "a/bb"}},
{"a/b/c", []string{"a/b/c"}},
{"", names},
} {
c.Logf("test %d: prefix=%q", i, test.prefix)
files, err := storage.List(s.reader, test.prefix)
c.Assert(err, jc.ErrorIsNil)
i := len(files)
j := len(test.expected)
c.Assert(i, gc.Equals, j)
for i := range files {
c.Assert(files[i], jc.SamePath, test.expected[i])
}
}
}
func (s *storageSuite) TestListReturnsNoFilesIfNoFilesMatchPrefix(c *gc.C) {
stor := NewStorage(s.makeEnviron())
s.fakeStoredFile(stor, "foo")
listing, err := storage.List(stor, "bar")
c.Assert(err, gc.IsNil)
c.Check(listing, gc.DeepEquals, []string{})
}
func (s *storageSuite) TestListOperatesOnFlatNamespace(c *gc.C) {
stor := NewStorage(s.makeEnviron())
s.fakeStoredFile(stor, "a/b/c/d")
listing, err := storage.List(stor, "a/b")
c.Assert(err, gc.IsNil)
c.Check(listing, gc.DeepEquals, []string{"a/b/c/d"})
}
func (s *storageSuite) TestList(c *gc.C) {
listener, _, _ := startServer(c)
defer listener.Close()
stor := httpstorage.Client(listener.Addr().String())
names, err := storage.List(stor, "a/b/c")
c.Assert(err, gc.IsNil)
c.Assert(names, gc.HasLen, 0)
}
func (s *storageSuite) TestListReturnsOnlyFilesWithMatchingPrefix(c *gc.C) {
stor := NewStorage(s.makeEnviron())
s.fakeStoredFile(stor, "abc")
s.fakeStoredFile(stor, "xyz")
listing, err := storage.List(stor, "x")
c.Assert(err, gc.IsNil)
c.Check(listing, gc.DeepEquals, []string{"xyz"})
}
func (s *storageSuite) TestListMatchesPrefixOnly(c *gc.C) {
stor := NewStorage(s.makeEnviron())
s.fakeStoredFile(stor, "abc")
s.fakeStoredFile(stor, "xabc")
listing, err := storage.List(stor, "a")
c.Assert(err, gc.IsNil)
c.Check(listing, gc.DeepEquals, []string{"abc"})
}
// RemoveTools deletes all tools from the supplied storage.
func RemoveTools(c *gc.C, stor storage.Storage) {
names, err := storage.List(stor, "tools/releases/juju-")
c.Assert(err, gc.IsNil)
c.Logf("removing files: %v", names)
for _, name := range names {
err = stor.Remove(name)
c.Check(err, gc.IsNil)
}
RemoveFakeToolsMetadata(c, stor)
}
func checkList(c *gc.C, stor storage.StorageReader, prefix string, names []string) {
lnames, err := storage.List(stor, prefix)
c.Assert(err, jc.ErrorIsNil)
i := len(lnames)
j := len(names)
c.Assert(i, gc.Equals, j)
for i := range lnames {
c.Assert(lnames[i], jc.SamePath, names[i])
}
}
func checkList(c *gc.C, stor storage.StorageReader, prefix string, names []string) {
lnames, err := storage.List(stor, prefix)
c.Assert(err, gc.IsNil)
// TODO(dfc) gocheck should grow an SliceEquals checker.
expected := copyslice(lnames)
sort.Strings(expected)
actual := copyslice(names)
sort.Strings(actual)
c.Assert(expected, gc.DeepEquals, actual)
}
// RemoveTools deletes all tools from the supplied storage.
func RemoveTools(c *gc.C, stor storage.Storage, toolsDir string) {
names, err := storage.List(stor, fmt.Sprintf("tools/%s/juju-", toolsDir))
c.Assert(err, jc.ErrorIsNil)
c.Logf("removing files: %v", names)
for _, name := range names {
err = stor.Remove(name)
c.Check(err, jc.ErrorIsNil)
}
RemoveFakeToolsMetadata(c, stor)
}
func (s *storageSuite) TestListReturnsAllFilesIfPrefixEmpty(c *gc.C) {
stor := NewStorage(s.makeEnviron())
files := []string{"1a", "2b", "3c"}
for _, name := range files {
s.fakeStoredFile(stor, name)
}
listing, err := storage.List(stor, "")
c.Assert(err, gc.IsNil)
c.Check(listing, gc.DeepEquals, files)
}
func (s *storageSuite) TestListSortsResults(c *gc.C) {
stor := NewStorage(s.makeEnviron())
files := []string{"4d", "1a", "3c", "2b"}
for _, name := range files {
s.fakeStoredFile(stor, name)
}
listing, err := storage.List(stor, "")
c.Assert(err, gc.IsNil)
c.Check(listing, gc.DeepEquals, []string{"1a", "2b", "3c", "4d"})
}
// ReadList returns a List of the tools in store with the given major.minor version.
// If minorVersion = -1, then only majorVersion is considered.
// If store contains no such tools, it returns ErrNoMatches.
func ReadList(stor storage.StorageReader, toolsDir string, majorVersion, minorVersion int) (coretools.List, error) {
if minorVersion >= 0 {
logger.Debugf("reading v%d.%d tools", majorVersion, minorVersion)
} else {
logger.Debugf("reading v%d.* tools", majorVersion)
}
storagePrefix := storagePrefix(toolsDir)
names, err := storage.List(stor, storagePrefix)
if err != nil {
return nil, err
}
var list coretools.List
var foundAnyTools bool
for _, name := range names {
name = filepath.ToSlash(name)
if !strings.HasPrefix(name, storagePrefix) || !strings.HasSuffix(name, toolSuffix) {
continue
}
var t coretools.Tools
vers := name[len(storagePrefix) : len(name)-len(toolSuffix)]
if t.Version, err = version.ParseBinary(vers); err != nil {
logger.Debugf("failed to parse version %q: %v", vers, err)
continue
}
foundAnyTools = true
// Major version must match specified value.
if t.Version.Major != majorVersion {
continue
}
// If specified minor version value supplied, minor version must match.
if minorVersion >= 0 && t.Version.Minor != minorVersion {
continue
}
logger.Debugf("found %s", vers)
if t.URL, err = stor.URL(name); err != nil {
return nil, err
}
list = append(list, &t)
// Older versions of Juju only know about ppc64, so add metadata for that arch.
if t.Version.Arch == arch.PPC64EL {
legacyPPC64Tools := t
legacyPPC64Tools.Version.Arch = arch.LEGACY_PPC64
list = append(list, &legacyPPC64Tools)
}
}
if len(list) == 0 {
if foundAnyTools {
return nil, coretools.ErrNoMatches
}
return nil, ErrNoTools
}
return list, nil
}
// RemoveAll is specified in the StorageWriter interface.
func (s *openstackstorage) RemoveAll() error {
names, err := storage.List(s, "")
if err != nil {
return err
}
// Remove all the objects in parallel so as to minimize round-trips.
// Start with a goroutine feeding all the names that need to be
// deleted.
toDelete := make(chan string)
go func() {
for _, name := range names {
toDelete <- name
}
close(toDelete)
}()
// Now spawn up to N routines to actually issue the requests.
maxRoutines := len(names)
if maxConcurrentDeletes < maxRoutines {
maxRoutines = maxConcurrentDeletes
}
var wg sync.WaitGroup
wg.Add(maxRoutines)
// Make a channel long enough to buffer all possible errors.
errc := make(chan error, len(names))
for i := 0; i < maxRoutines; i++ {
go func() {
for name := range toDelete {
if err := s.Remove(name); err != nil {
errc <- err
}
}
wg.Done()
}()
}
wg.Wait()
select {
case err := <-errc:
return fmt.Errorf("cannot delete all provider state: %v", err)
default:
}
s.Lock()
defer s.Unlock()
// Even DeleteContainer fails, it won't harm if we try again - the
// operation might have succeeded even if we get an error.
s.madeContainer = false
err = s.swift.DeleteContainer(s.containerName)
err, ok := maybeNotFound(err)
if ok {
return nil
}
return err
}
func (*storageSuite) TestListWithNonexistentContainerReturnsNoFiles(c *gc.C) {
// If Azure returns a 404 it means the container doesn't exist. In this
// case the provider should interpret this as "no files" and return nil.
container := "container"
response := makeResponse("", http.StatusNotFound)
azStorage, transport := makeFakeStorage(container, "account", "")
transport.AddExchange(response, nil)
names, err := storage.List(azStorage, "prefix")
c.Assert(err, gc.IsNil)
c.Assert(names, gc.IsNil)
}
func (s *storageSuite) TestPathValidity(c *gc.C) {
stor, storageDir := s.makeStorage(c)
err := os.Mkdir(filepath.Join(storageDir, "a"), 0755)
c.Assert(err, gc.IsNil)
createFiles(c, storageDir, "a/b")
for _, prefix := range []string{"..", "a/../.."} {
c.Logf("prefix: %q", prefix)
_, err := storage.List(stor, prefix)
c.Check(err, gc.ErrorMatches, regexp.QuoteMeta(fmt.Sprintf("%q escapes storage directory", prefix)))
}
// Paths are always relative, so a leading "/" may as well not be there.
names, err := storage.List(stor, "/")
c.Assert(err, gc.IsNil)
c.Assert(names, gc.DeepEquals, []string{"a/b"})
// Paths will be canonicalised.
names, err = storage.List(stor, "a/..")
c.Assert(err, gc.IsNil)
c.Assert(names, gc.DeepEquals, []string{"a/b"})
}
func (t *LiveTests) TestDestroy(c *gc.C) {
s := t.Env.Storage()
err := s.Put("foo", strings.NewReader("foo"), 3)
c.Assert(err, gc.IsNil)
err = s.Put("bar", strings.NewReader("bar"), 3)
c.Assert(err, gc.IsNil)
// Check that the bucket exists, so we can be sure
// we have checked correctly that it's been destroyed.
names, err := storage.List(s, "")
c.Assert(err, gc.IsNil)
c.Assert(len(names) >= 2, gc.Equals, true)
t.Destroy(c)
for a := ec2.ShortAttempt.Start(); a.Next(); {
names, err = storage.List(s, "")
if len(names) == 0 {
break
}
}
c.Assert(names, gc.HasLen, 0)
}
func (s *storageSuite) TestRemoveAllDeletesAllFiles(c *gc.C) {
stor := s.makeStorage("get-retrieves-file")
const filename1 = "stored-data1"
s.fakeStoredFile(stor, filename1)
const filename2 = "stored-data2"
s.fakeStoredFile(stor, filename2)
err := stor.RemoveAll()
c.Assert(err, gc.IsNil)
listing, err := storage.List(stor, "")
c.Assert(err, gc.IsNil)
c.Assert(listing, gc.DeepEquals, []string{})
}
func (s *storageSuite) TestWithExclusiveLocks(c *gc.C) {
stor, storageDir := s.makeStorage(c)
// None of the methods (apart from URL) should be able to do anything
// while an exclusive lock is held.
s.flock(c, flockExclusive, storageDir)
_, err := stor.URL("a")
c.Assert(err, gc.IsNil)
c.Assert(stor.Put("a", bytes.NewBuffer(nil), 0), gc.NotNil)
c.Assert(stor.Remove("a"), gc.NotNil)
c.Assert(stor.RemoveAll(), gc.NotNil)
_, err = storage.Get(stor, "a")
c.Assert(err, gc.NotNil)
_, err = storage.List(stor, "")
c.Assert(err, gc.NotNil)
}
func (s *storageSuite) TestRemoveDeletesFile(c *gc.C) {
const filename = "doomed.txt"
stor := NewStorage(s.makeEnviron())
s.fakeStoredFile(stor, filename)
err := stor.Remove(filename)
c.Assert(err, gc.IsNil)
_, err = storage.Get(stor, filename)
c.Assert(err, jc.Satisfies, errors.IsNotFound)
listing, err := storage.List(stor, filename)
c.Assert(err, gc.IsNil)
c.Assert(listing, gc.DeepEquals, []string{})
}
func (s *storageSuite) TestWithSharedLocks(c *gc.C) {
stor, storageDir := s.makeStorage(c)
// Get and List should be able to proceed with a shared lock.
// All other methods should fail.
createFiles(c, storageDir, "a")
s.flock(c, flockShared, storageDir)
_, err := storage.Get(stor, "a")
c.Assert(err, gc.IsNil)
_, err = storage.List(stor, "")
c.Assert(err, gc.IsNil)
c.Assert(stor.Put("a", bytes.NewBuffer(nil), 0), gc.NotNil)
c.Assert(stor.Remove("a"), gc.NotNil)
c.Assert(stor.RemoveAll(), gc.NotNil)
}
func (*storageSuite) TestList(c *gc.C) {
container := "container"
response := makeResponse(blobListResponse, http.StatusOK)
azStorage, transport := makeFakeStorage(container, "account", "")
transport.AddExchange(response, nil)
prefix := "prefix"
names, err := storage.List(azStorage, prefix)
c.Assert(err, gc.IsNil)
c.Assert(transport.ExchangeCount, gc.Equals, 1)
// The prefix has been passed down as a query parameter.
c.Check(transport.Exchanges[0].Request.URL.Query()["prefix"], gc.DeepEquals, []string{prefix})
// The container name is used in the requested URL.
c.Check(transport.Exchanges[0].Request.URL.String(), gc.Matches, ".*"+container+".*")
c.Check(names, gc.DeepEquals, []string{"prefix-1", "prefix-2"})
}
// ReadList returns a List of the tools in store with the given major.minor version.
// If minorVersion = -1, then only majorVersion is considered.
// If store contains no such tools, it returns ErrNoMatches.
func ReadList(stor storage.StorageReader, majorVersion, minorVersion int) (coretools.List, error) {
if minorVersion >= 0 {
logger.Debugf("reading v%d.%d tools", majorVersion, minorVersion)
} else {
logger.Debugf("reading v%d.* tools", majorVersion)
}
names, err := storage.List(stor, toolPrefix)
if err != nil {
return nil, err
}
var list coretools.List
var foundAnyTools bool
for _, name := range names {
if !strings.HasPrefix(name, toolPrefix) || !strings.HasSuffix(name, toolSuffix) {
continue
}
var t coretools.Tools
vers := name[len(toolPrefix) : len(name)-len(toolSuffix)]
if t.Version, err = version.ParseBinary(vers); err != nil {
logger.Debugf("failed to parse version %q: %v", vers, err)
continue
}
foundAnyTools = true
// Major version must match specified value.
if t.Version.Major != majorVersion {
continue
}
// If specified minor version value supplied, minor version must match.
if minorVersion >= 0 && t.Version.Minor != minorVersion {
continue
}
logger.Debugf("found %s", vers)
if t.URL, err = stor.URL(name); err != nil {
return nil, err
}
list = append(list, &t)
}
if len(list) == 0 {
if foundAnyTools {
return nil, coretools.ErrNoMatches
}
return nil, ErrNoTools
}
return list, nil
}
func checkRemoveAll(c *gc.C, stor storage.Storage) {
contents := []byte("File contents.")
aFile := "a-file.txt"
err := stor.Put(aFile, bytes.NewBuffer(contents), int64(len(contents)))
c.Assert(err, gc.IsNil)
err = stor.Put("empty-file", bytes.NewBuffer(nil), 0)
c.Assert(err, gc.IsNil)
err = stor.RemoveAll()
c.Assert(err, gc.IsNil)
files, err := storage.List(stor, "")
c.Assert(err, gc.IsNil)
c.Check(files, gc.HasLen, 0)
_, err = storage.Get(stor, aFile)
c.Assert(err, gc.NotNil)
c.Check(err, gc.ErrorMatches, fmt.Sprintf("file %q not found", aFile))
}
func (s *storageSuite) TestClientTLS(c *gc.C) {
listener, _, storageDir := startServerTLS(c)
defer listener.Close()
stor, err := httpstorage.ClientTLS(listener.Addr().String(), coretesting.CACert, testAuthkey)
c.Assert(err, gc.IsNil)
data := []byte("hello")
err = ioutil.WriteFile(filepath.Join(storageDir, "filename"), data, 0644)
c.Assert(err, gc.IsNil)
names, err := storage.List(stor, "filename")
c.Assert(err, gc.IsNil)
c.Assert(names, gc.DeepEquals, []string{"filename"})
checkFileHasContents(c, stor, "filename", data)
// Put, Remove and RemoveAll should all succeed.
checkPutFile(c, stor, "filenamethesecond", data)
checkFileHasContents(c, stor, "filenamethesecond", data)
c.Assert(stor.Remove("filenamethesecond"), gc.IsNil)
c.Assert(stor.RemoveAll(), gc.IsNil)
}
func (suite *environSuite) TestDestroy(c *gc.C) {
env := suite.makeEnviron()
suite.getInstance("test1")
suite.testMAASObject.TestServer.OwnedNodes()["test1"] = true // simulate acquire
data := makeRandomBytes(10)
suite.testMAASObject.TestServer.NewFile("filename", data)
stor := env.Storage()
err := env.Destroy()
c.Check(err, jc.ErrorIsNil)
// Instances have been stopped.
operations := suite.testMAASObject.TestServer.NodesOperations()
c.Check(operations, gc.DeepEquals, []string{"release"})
c.Check(suite.testMAASObject.TestServer.OwnedNodes()["test1"], jc.IsFalse)
// Files have been cleaned up.
listing, err := envstorage.List(stor, "")
c.Assert(err, jc.ErrorIsNil)
c.Check(listing, gc.DeepEquals, []string{})
}
func (s *ec2storage) RemoveAll() error {
names, err := storage.List(s, "")
if err != nil {
return err
}
// Remove all the objects in parallel to minimize round-trips.
// If we're in danger of having hundreds of objects,
// we'll want to change this to limit the number
// of concurrent operations.
var wg sync.WaitGroup
wg.Add(len(names))
errc := make(chan error, len(names))
for _, name := range names {
name := name
go func() {
if err := s.Remove(name); err != nil {
errc <- err
}
wg.Done()
}()
}
wg.Wait()
select {
case err := <-errc:
return fmt.Errorf("cannot delete all provider state: %v", err)
default:
}
s.Lock()
defer s.Unlock()
// Even DelBucket fails, it won't harm if we try again - the operation
// might have succeeded even if we get an error.
s.madeBucket = false
err = deleteBucket(s)
err = s.bucket.DelBucket()
if s3ErrorStatusCode(err) == 404 {
return nil
}
return err
}