func main() {
if len(os.Args) == 1 {
fmt.Fprintf(os.Stderr, `%s: missing operand\n
Usage: %s [-rf] FILE...
`, os.Args[0], os.Args[0])
os.Exit(1)
}
exitCode := 0
if os.Args[1] == "-rf" {
for _, path := range os.Args[2:] {
if err := shred.RemoveAll(path); err != nil {
fmt.Fprintf(os.Stderr, "%s: %s\n", path, err)
exitCode = 1
}
}
} else {
for i, path := range os.Args[1:] {
if i == 1 && path == "--" {
continue
}
if err := shred.Remove(path); err != nil {
fmt.Fprintf(os.Stderr, "%s: %s\n", path, err)
exitCode = 1
}
}
}
os.Exit(exitCode)
}
func (p *Paths) ConversationToOutbox(metadata *proto.ConversationMetadata, msgs ...string) error {
path := filepath.Join(p.OutboxDir(), ConversationName(metadata))
tmpDir, err := p.MkdirInTemp()
if err != nil {
return err
}
defer shred.RemoveAll(tmpDir)
if err := p.MarshalToFile(filepath.Join(tmpDir, MetadataFileName), metadata); err != nil {
return err
}
return os.Rename(filepath.Join(tmpDir), path)
}
func (p *Daemon) conversationToConversations(metadata *proto.ConversationMetadata) error {
path := filepath.Join(p.ConversationDir(), persistence.ConversationName(metadata))
tmpDir, err := p.MkdirInTemp()
if err != nil {
return err
}
defer shred.RemoveAll(tmpDir)
if err := p.MarshalToFile(filepath.Join(tmpDir, persistence.MetadataFileName), metadata); err != nil {
return err
}
return os.Rename(filepath.Join(tmpDir), path)
}
func (d *Daemon) saveMessage(message *proto.Message) error {
// generate metadata file
metadata := proto.ConversationMetadata{
Participants: message.Participants,
Subject: message.Subject,
}
// generate conversation name
convName := persistence.ConversationName(&metadata)
messageName := persistence.MessageName(time.Unix(0, message.Date), string(message.Dename))
// create conversation directory if it doesn't already exist
convDir := filepath.Join(d.ConversationDir(), convName)
outboxDir := filepath.Join(d.OutboxDir(), convName)
_, err := os.Stat(convDir)
if err != nil && !os.IsNotExist(err) {
return err
} else if err != nil && os.IsNotExist(err) {
// new message in existing conversation
if err := d.conversationToConversations(&metadata); err != nil {
return err
}
}
err = d.AtomicWriteFile(filepath.Join(convDir, messageName), message.Contents, 0600)
if err != nil {
return err
}
// to outbox
tdir, err := d.MkdirInTemp()
if err != nil {
return err
}
defer shred.RemoveAll(tdir)
err = d.MarshalToFile(filepath.Join(tdir, persistence.MetadataFileName), &metadata)
if err != nil {
return err
}
if err = os.Rename(filepath.Join(tdir), outboxDir); err != nil && !os.IsExist(err) && !strings.Contains(err.Error(), "directory not empty") {
return err
}
return nil
}
func InitFs(d *Daemon) error {
// create root directory and immediate sub directories
os.MkdirAll(d.RootDir, 0700)
subdirs := []string{
d.ConversationDir(),
d.OutboxDir(),
d.TempDir(),
d.privDir(),
d.profilesDir(),
d.ratchetKeysDir(),
}
for _, dir := range subdirs {
os.MkdirAll(dir, 0700) // FIXME: handle error
}
// for each existing conversation, create a folder in the outbox
copyToOutbox := func(cPath string, f os.FileInfo, err error) error {
if err != nil {
return err
}
if cPath != d.ConversationDir() {
if f.IsDir() {
// create the outbox directory in tmp, then (atomically) move it to outbox
tmpDir, err := d.MkdirInTemp()
if err != nil {
return err
}
defer shred.RemoveAll(tmpDir)
conversationInfo, err := os.Stat(cPath)
if err != nil {
return err
}
var c_perm = conversationInfo.Mode()
metadataFile := filepath.Join(cPath, persistence.MetadataFileName)
metadataInfo, err := os.Stat(metadataFile)
if err != nil {
return err
}
var m_perm = metadataInfo.Mode()
oldUmask := syscall.Umask(0000)
defer syscall.Umask(oldUmask)
os.Mkdir(filepath.Join(tmpDir, path.Base(cPath)), c_perm)
err = Copy(metadataFile, filepath.Join(tmpDir, path.Base(cPath), persistence.MetadataFileName), m_perm)
if err != nil {
return err
}
err = os.Rename(filepath.Join(tmpDir, path.Base(cPath)), filepath.Join(d.OutboxDir(), path.Base(cPath)))
if err != nil {
// skip this conversation; this probably means it already exists in the outbox
return nil
}
}
}
return nil
}
err := filepath.Walk(d.ConversationDir(), copyToOutbox)
if err != nil {
return err
}
return nil
}
func TestEncryptFirstMessage(t *testing.T) {
alice := "alice"
bob := "bob"
denameConfig, denameTeardown := denameTestutil.SingleServer(t)
defer denameTeardown()
aliceDnmc, err := denameClient.NewClient(denameConfig, nil, nil)
bobDnmc, err := denameClient.NewClient(denameConfig, nil, nil)
if err != nil {
t.Fatal(err)
}
_, serverPubkey, serverAddr, serverTeardown := server.CreateTestServer(t)
defer serverTeardown()
aliceDir, err := ioutil.TempDir("", "daemon-alice")
if err != nil {
t.Fatal(err)
}
defer shred.RemoveAll(aliceDir)
bobDir, err := ioutil.TempDir("", "daemon-bob")
if err != nil {
t.Fatal(err)
}
defer shred.RemoveAll(bobDir)
aliceConf := &Daemon{
Paths: persistence.Paths{
RootDir: aliceDir,
Application: "daemon",
},
Now: time.Now,
foreignDenameClient: aliceDnmc,
timelessDenameClient: aliceDnmc,
inBuf: make([]byte, proto.SERVER_MESSAGE_SIZE),
outBuf: make([]byte, proto.SERVER_MESSAGE_SIZE),
LocalAccountConfig: proto.LocalAccountConfig{},
LocalAccount: proto.LocalAccount{
Dename: alice,
},
cc: util.NewConnectionCache(util.NewAnonDialer("DANGEROUS_NO_TOR")),
}
bobConf := &Daemon{
Paths: persistence.Paths{
RootDir: bobDir,
Application: "daemon",
},
Now: time.Now,
foreignDenameClient: bobDnmc,
timelessDenameClient: bobDnmc,
inBuf: make([]byte, proto.SERVER_MESSAGE_SIZE),
outBuf: make([]byte, proto.SERVER_MESSAGE_SIZE),
LocalAccountConfig: proto.LocalAccountConfig{},
LocalAccount: proto.LocalAccount{
Dename: bob,
},
cc: util.NewConnectionCache(util.NewAnonDialer("DANGEROUS_NO_TOR")),
}
aliceHomeConn := util.CreateTestAccount(alice, aliceDnmc, &aliceConf.LocalAccountConfig, serverAddr, serverPubkey, t)
defer aliceHomeConn.Close()
bobHomeConn := util.CreateTestAccount(bob, bobDnmc, &bobConf.LocalAccountConfig, serverAddr, serverPubkey, t)
defer bobHomeConn.Close()
//fmt.Printf("CBob: %v\n", ([32]byte)(bobConf.TransportSecretKeyForServer))
aliceNotifies := make(chan *util.EnvelopeWithId)
aliceReplies := make(chan *proto.ServerToClient)
aliceConnToServer := &util.ConnectionToServer{
InBuf: aliceConf.inBuf,
Conn: aliceHomeConn,
ReadReply: aliceReplies,
ReadEnvelope: aliceNotifies,
}
go aliceConnToServer.ReceiveMessages()
bobNotifies := make(chan *util.EnvelopeWithId)
bobReplies := make(chan *proto.ServerToClient)
bobConnToServer := &util.ConnectionToServer{
InBuf: bobConf.inBuf,
Conn: bobHomeConn,
ReadReply: bobReplies,
ReadEnvelope: bobNotifies,
}
go bobConnToServer.ReceiveMessages()
if err := InitFs(aliceConf); err != nil {
t.Fatal(err)
}
if err := InitFs(bobConf); err != nil {
t.Fatal(err)
}
//Bob uploads keys
bobPublicPrekeys, bobSecretPrekeys, err := GeneratePrekeys(maxPrekeys)
var bobSigningKey [64]byte
copy(bobSigningKey[:], bobConf.KeySigningSecretKey[:64])
err = util.UploadKeys(bobConnToServer, util.SignKeys(bobPublicPrekeys, &bobSigningKey))
if err != nil {
t.Fatal(err)
}
//Bob enables notifications
if err = util.EnablePush(bobConnToServer); err != nil {
t.Fatal(err)
}
//Alice uploads keys
alicePublicPrekeys, _, err := GeneratePrekeys(maxPrekeys)
var aliceSigningKey [64]byte
copy(aliceSigningKey[:], aliceConf.KeySigningSecretKey[:64])
err = util.UploadKeys(aliceConnToServer, util.SignKeys(alicePublicPrekeys, &aliceSigningKey))
if err != nil {
t.Fatal(err)
}
//Alice enables notification
if err = util.EnablePush(aliceConnToServer); err != nil {
t.Fatal(err)
}
participants := make([]string, 0, 2)
participants = append(participants, alice)
participants = append(participants, bob)
msg1 := []byte("Envelope")
payload := proto.Message{
Subject: "Subject1",
Participants: participants,
Dename: alice,
Contents: msg1,
}
envelope, err := payload.Marshal()
if err != nil {
t.Fatal(err)
}
err = aliceConf.sendFirstMessage(envelope, bob)
if err != nil {
t.Fatal(err)
}
incoming := <-bobConnToServer.ReadEnvelope
out, bobRatch, _, err := bobConf.decryptFirstMessage(incoming.Envelope, bobPublicPrekeys, bobSecretPrekeys)
if err != nil {
t.Fatal(err)
}
fmt.Printf("Bob hears: %s\n", out)
msg2 := []byte("Envelope2")
payload2 := proto.Message{
Subject: "Subject3",
Participants: participants,
Dename: bob,
Contents: msg2,
}
envelope2, err := payload2.Marshal()
if err != nil {
t.Fatal(err)
}
err = bobConf.sendMessage(envelope2, alice, bobRatch)
if err != nil {
t.Fatal(err)
}
incomingAlice := <-aliceConnToServer.ReadEnvelope
aliceConf.fillAuth = util.FillAuthWith((*[32]byte)(&aliceConf.MessageAuthSecretKey))
aliceConf.checkAuth = util.CheckAuthWith(aliceConf.ProfileRatchet)
aliceRatchets, err := AllRatchets(aliceConf, aliceConf.fillAuth, aliceConf.checkAuth)
outAlice, _, err := decryptMessage(incomingAlice.Envelope, aliceRatchets)
if err != nil {
t.Fatal(err)
}
ha := sha256.Sum256(incomingAlice.Envelope)
if err := aliceConf.saveMessage(outAlice); err != nil {
t.Fatal(err)
}
if err := util.DeleteMessages(aliceConnToServer, []*[32]byte{&ha}); err != nil {
t.Fatal(err)
}
fmt.Printf("Alice hears: %s\n", outAlice)
//TODO: Confirm message is as expected within the test
}
func TestReadFromFiles(t *testing.T) {
alice := "alice"
bob := "bob"
denameConfig, denameTeardown := denameTestutil.SingleServer(t)
defer denameTeardown()
_, serverPubkey, serverAddr, serverTeardown := server.CreateTestServer(t)
defer serverTeardown()
aliceDir, err := ioutil.TempDir("", "daemon-alice")
if err != nil {
t.Fatal(err)
}
defer shred.RemoveAll(aliceDir)
bobDir, err := ioutil.TempDir("", "daemon-bob")
if err != nil {
t.Fatal(err)
}
defer shred.RemoveAll(bobDir)
aliceDaemon := PrepareTestAccountDaemon(alice, aliceDir, denameConfig, serverAddr, serverPubkey, t)
bobDaemon := PrepareTestAccountDaemon(bob, bobDir, denameConfig, serverAddr, serverPubkey, t)
//activate initialized daemons
aliceDaemon.Start()
bobDaemon.Start()
defer aliceDaemon.Stop()
defer bobDaemon.Stop()
//alice creates a new conversation and sends a message
participants := []string{alice, bob}
subj := "testConversation"
conv := &proto.ConversationMetadata{
Participants: participants,
Subject: subj,
}
if err := aliceDaemon.ConversationToOutbox(conv); err != nil {
t.Fatal(err)
}
watcher, err := fsnotify.NewWatcher()
if err != nil {
t.Fatal(err)
}
err = watcher.Add(bobDaemon.ConversationDir())
if err != nil {
t.Fatal(err)
}
sentMessage := "Bob, can you hear me?"
if err := aliceDaemon.MessageToOutbox(persistence.ConversationName(conv), sentMessage); err != nil {
t.Fatal(err)
}
var files []string
for len(files) == 0 {
watcher.Add((<-watcher.Events).Name)
if files, err = filepath.Glob(filepath.Join(bobDaemon.ConversationDir(), persistence.ConversationName(conv), "*alice")); err != nil {
t.Fatal(err)
}
}
receivedMessage, err := ioutil.ReadFile(files[0])
if err != nil {
t.Fatal(err)
}
if string(receivedMessage) != sentMessage {
t.Fatal("receivedMessage != sentMessage")
}
}
func (d *Daemon) processOutboxDir(dirname string) error {
// TODO: refactor: separate message assembly and filesystem access?
// parse metadata
metadataFile := filepath.Join(dirname, persistence.MetadataFileName)
if _, err := os.Stat(metadataFile); err != nil {
return nil // no metadata --> not an outgoing message
}
metadata := proto.ConversationMetadata{}
err := persistence.UnmarshalFromFile(metadataFile, &metadata)
if err != nil {
return err
}
metadata.Participants = append(metadata.Participants, d.Dename)
undupStrings(metadata.Participants)
sort.Strings(metadata.Participants)
convName := persistence.ConversationName(&metadata)
// load messages
potentialMessages, err := ioutil.ReadDir(dirname)
if err != nil {
return err
}
messages := make([][]byte, 0, len(potentialMessages))
for _, finfo := range potentialMessages {
if !finfo.IsDir() && finfo.Name() != persistence.MetadataFileName {
msg, err := ioutil.ReadFile(filepath.Join(dirname, finfo.Name()))
if err != nil {
return err
}
// make protobuf for message; append it
d.ourDenameLookupMu.Lock()
payload := proto.Message{
Dename: d.Dename,
DenameLookup: d.ourDenameLookup,
Contents: msg,
Subject: metadata.Subject,
Participants: metadata.Participants,
Date: finfo.ModTime().UnixNano(),
}
d.ourDenameLookupMu.Unlock()
payloadBytes, err := payload.Marshal()
if err != nil {
return err
}
messages = append(messages, payloadBytes)
}
}
if len(messages) == 0 {
return nil // no messages to send, just the metadata file
}
if err := d.conversationToConversations(&metadata); err != nil && !os.IsExist(err) && !strings.Contains(fmt.Sprint(err), "directory not empty") {
log.Fatal(err)
}
for _, recipient := range metadata.Participants {
if recipient == d.Dename {
continue
}
for _, msg := range messages {
if err != nil {
return err
}
if msgRatch, err := LoadRatchet(d, recipient, d.fillAuth, d.checkAuth); err != nil { //First message to this recipien
if err := d.sendFirstMessage(msg, recipient); err != nil {
return err
}
} else {
if err := d.sendMessage(msg, recipient, msgRatch); err != nil {
return err
}
}
}
}
// move the sent messages to the conversation folder
for _, finfo := range potentialMessages {
if !finfo.IsDir() && finfo.Name() != persistence.MetadataFileName {
if err = os.Rename(filepath.Join(dirname, finfo.Name()), filepath.Join(d.ConversationDir(), persistence.ConversationName(&metadata), persistence.MessageName(finfo.ModTime(), string(d.Dename)))); err != nil {
log.Fatal(err)
}
}
}
// canonicalize the outbox folder name
if dirname != filepath.Join(d.OutboxDir(), convName) {
if err := os.Rename(dirname, filepath.Join(d.OutboxDir(), convName)); err != nil {
shred.RemoveAll(dirname)
}
}
return nil
}