2026-08-05 12:17:06 +00:00
35 changed files with 1152 additions and 6655 deletions
--- a/.gitignore
+++ b/.gitignore
@ -3,5 +3,3 @@ telegabber
 sessions/
 session.dat
 session.dat.new
-release/
-tdlib/
--- a/36
+++ b/36
@ -1,36 +0,0 @@
-FROM golang:1.19-bookworm AS base
-
-RUN apt-get update
-run apt-get install -y libssl-dev cmake build-essential gperf libz-dev make git
-
-FROM base AS tdlib
-
-ARG TD_COMMIT
-ARG MAKEOPTS
-RUN git clone https://github.com/tdlib/td /src/
-RUN git -C /src/ checkout "${TD_COMMIT}"
-RUN mkdir build
-WORKDIR /build/
-RUN cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/compiled/ /src/
-RUN cmake --build . ${MAKEOPTS}
-RUN make install
-
-FROM base AS cache
-ARG VERSION
-COPY --from=tdlib /compiled/ /usr/local/
-COPY ./ /src
-RUN git -C /src checkout "${VERSION}"
-WORKDIR /src
-RUN go get
-
-FROM cache AS build
-ARG MAKEOPTS
-WORKDIR /src
-RUN make ${MAKEOPTS}
-
-FROM scratch AS telegabber
-COPY --from=build /src/release/telegabber /usr/local/bin/
-ENTRYPOINT ["/usr/local/bin/telegabber"]
-
-FROM scratch AS binaries
-COPY --from=telegabber /usr/local/bin/telegabber /
--- a/19
+++ b/19
@ -1,25 +1,10 @@
 .PHONY: all test

-COMMIT := $(shell git rev-parse --short HEAD)
-TD_COMMIT := "5bbfc1cf5dab94f82e02f3430ded7241d4653551"
-VERSION := "v1.12.8"
-MAKEOPTS := "-j4"
-
 all:
-	mkdir -p release
-	go build -ldflags "-X main.commit=${COMMIT}" -o release/telegabber
+	go build -o telegabber

 test:
-	go test -v ./config ./ ./telegram ./xmpp ./xmpp/gateway ./persistence ./telegram/formatter ./badger
+	go test -v ./config ./ ./telegram ./xmpp/gateway ./persistence ./telegram/formatter

 lint:
 	$(GOPATH)/bin/golint ./...
-
-build_indocker:
-	docker build --build-arg "TD_COMMIT=${TD_COMMIT}" --build-arg "VERSION=${VERSION}" --build-arg "MAKEOPTS=${MAKEOPTS}" --output=release --target binaries .
-
-build_indocker_staging:
-	DOCKER_BUILDKIT=1 docker build --build-arg "TD_COMMIT=${TD_COMMIT}" --build-arg "MAKEOPTS=${MAKEOPTS}" --network host --output=release --target binaries -f staging.Dockerfile .
-
-build_tdlib:
-	DOCKER_BUILDKIT=1 docker build --build-arg "TD_COMMIT=${TD_COMMIT}" --build-arg "MAKEOPTS=${MAKEOPTS}" --output=tdlib --target binaries -f tdlib.Dockerfile .
--- a/README.md
+++ b/README.md
@ -75,7 +75,6 @@ It is good idea to obtain Telegram API ID from [**https://my.telegram.org**](htt
 * `--profiling-port=xxxx`: start the pprof server on port `xxxx`. Access is limited to localhost.
 * `--config=/bla/bla/config.yml`: set the config file path (default: `config.yml`).
 * `--schema=/bla/bla/schema.json`: set the schema file path (default: `./config_schema.json`).
-* `--ids=/bla/bla/ids`: set the folder for ids database (default: `ids`).

 ### How to receive files from Telegram ###

@ -143,34 +142,3 @@ server {
 ```

 Finally, update `:upload:` in your config.yml to match `server_name` in nginx config.
-
-### Carbons ###
-
-Telegabber needs special privileges according to XEP-0356 to simulate message carbons from the users (to display messages they have sent earlier or via other clients). Example configuration for Prosody:
-
-```
-modules_enabled = {
-        [...]
-
-        "privilege";
-}
-
-[...]
-
-Component "telegabber.yourdomain.tld"
-    component_secret = "yourpassword"
-    modules_enabled = {"privilege"}
-
-[...]
-
-VirtualHost "yourdomain.tld"
-    [...]
-
-    privileged_entities = {
-        [...]
-
-        ["telegabber.yourdomain.tld"] = {
-            message = "outgoing";
-        },
-    }
-```
--- a/badger/ids.go
+++ b/badger/ids.go
@ -1,230 +0,0 @@
-package badger
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"strconv"
-
-	badger "github.com/dgraph-io/badger/v4"
-	log "github.com/sirupsen/logrus"
-)
-
-// IdsDB represents a Badger database
-type IdsDB struct {
-	db *badger.DB
-}
-
-// IdsDBOpen returns a new DB object
-func IdsDBOpen(path string) IdsDB {
-	bdb, err := badger.Open(badger.DefaultOptions(path))
-	if err != nil {
-		log.Errorf("Failed to open ids database: %v, falling back to in-memory database", path)
-		bdb, err = badger.Open(badger.DefaultOptions("").WithInMemory(true))
-		if err != nil {
-			log.Fatalf("Couldn't initialize the ids database")
-		}
-	}
-
-	return IdsDB{
-		db: bdb,
-	}
-}
-
-// Set stores an id pair
-func (db *IdsDB) Set(tgAccount, xmppAccount string, tgChatId, tgMsgId int64, xmppId string) error {
-	bPrefix := toKeyPrefix(tgAccount, xmppAccount)
-	bTgId := toTgByteString(tgChatId, tgMsgId)
-	bXmppId := toXmppByteString(xmppId)
-	bTgKey := toByteKey(bPrefix, bTgId, "tg")
-	bXmppKey := toByteKey(bPrefix, bXmppId, "xmpp")
-
-	return db.db.Update(func(txn *badger.Txn) error {
-		if err := txn.Set(bTgKey, bXmppId); err != nil {
-			return err
-		}
-		return txn.Set(bXmppKey, bTgId)
-	})
-}
-
-func (db *IdsDB) getByteValue(key []byte) ([]byte, error) {
-	var valCopy []byte
-	err := db.db.View(func(txn *badger.Txn) error {
-		item, err := txn.Get(key)
-		if err != nil {
-			return err
-		}
-
-		valCopy, err = item.ValueCopy(nil)
-		return err
-	})
-	return valCopy, err
-}
-
-// GetByTgIds obtains an XMPP id by Telegram chat/message ids
-func (db *IdsDB) GetByTgIds(tgAccount, xmppAccount string, tgChatId, tgMsgId int64) (string, error) {
-	val, err := db.getByteValue(toByteKey(
-		toKeyPrefix(tgAccount, xmppAccount),
-		toTgByteString(tgChatId, tgMsgId),
-		"tg",
-	))
-	if err != nil {
-		return "", err
-	}
-	return string(val), nil
-}
-
-// GetByXmppId obtains Telegram chat/message ids by an XMPP id
-func (db *IdsDB) GetByXmppId(tgAccount, xmppAccount, xmppId string) (int64, int64, error) {
-	val, err := db.getByteValue(toByteKey(
-		toKeyPrefix(tgAccount, xmppAccount),
-		toXmppByteString(xmppId),
-		"xmpp",
-	))
-	if err != nil {
-		return 0, 0, err
-	}
-	return splitTgByteString(val)
-}
-
-func toKeyPrefix(tgAccount, xmppAccount string) []byte {
-	return []byte(fmt.Sprintf("%v/%v/", tgAccount, xmppAccount))
-}
-
-func toByteKey(prefix, suffix []byte, typ string) []byte {
-	key := make([]byte, 0, len(prefix)+len(suffix)+6)
-	key = append(key, prefix...)
-	key = append(key, []byte(typ)...)
-	key = append(key, []byte("/")...)
-	key = append(key, suffix...)
-	return key
-}
-
-func toTgByteString(tgChatId, tgMsgId int64) []byte {
-	return []byte(fmt.Sprintf("%v/%v", tgChatId, tgMsgId))
-}
-
-func toXmppByteString(xmppId string) []byte {
-	return []byte(xmppId)
-}
-
-func splitTgByteString(val []byte) (int64, int64, error) {
-	parts := bytes.Split(val, []byte("/"))
-	if len(parts) != 2 {
-		return 0, 0, errors.New("Couldn't parse tg id pair")
-	}
-	tgChatId, err := strconv.ParseInt(string(parts[0]), 10, 64)
-	if err != nil {
-		return 0, 0, err
-	}
-	tgMsgId, err := strconv.ParseInt(string(parts[1]), 10, 64)
-	return tgChatId, tgMsgId, err
-}
-
-// ReplaceIdPair replaces an old entry by XMPP ID with both new XMPP and Tg ID
-func (db *IdsDB) ReplaceIdPair(tgAccount, xmppAccount, oldXmppId, newXmppId string, newMsgId int64) error {
-	// read old pair
-	chatId, oldMsgId, err := db.GetByXmppId(tgAccount, xmppAccount, oldXmppId)
-	if err != nil {
-		return err
-	}
-
-	bPrefix := toKeyPrefix(tgAccount, xmppAccount)
-
-	bOldTgId := toTgByteString(chatId, oldMsgId)
-	bOldXmppId := toXmppByteString(oldXmppId)
-	bOldTgKey := toByteKey(bPrefix, bOldTgId, "tg")
-	bOldXmppKey := toByteKey(bPrefix, bOldXmppId, "xmpp")
-
-	bTgId := toTgByteString(chatId, newMsgId)
-	bXmppId := toXmppByteString(newXmppId)
-	bTgKey := toByteKey(bPrefix, bTgId, "tg")
-	bXmppKey := toByteKey(bPrefix, bXmppId, "xmpp")
-
-	return db.db.Update(func(txn *badger.Txn) error {
-		// save new pair
-		if err := txn.Set(bTgKey, bXmppId); err != nil {
-			return err
-		}
-		if err := txn.Set(bXmppKey, bTgId); err != nil {
-			return err
-		}
-		// delete old pair
-		if err := txn.Delete(bOldTgKey); err != nil {
-			return err
-		}
-		return txn.Delete(bOldXmppKey)
-	})
-}
-
-// ReplaceXmppId replaces an old XMPP ID with new XMPP ID and keeps Tg ID intact
-func (db *IdsDB) ReplaceXmppId(tgAccount, xmppAccount, oldXmppId, newXmppId string) error {
-	// read old Tg IDs
-	chatId, msgId, err := db.GetByXmppId(tgAccount, xmppAccount, oldXmppId)
-	if err != nil {
-		return err
-	}
-
-	bPrefix := toKeyPrefix(tgAccount, xmppAccount)
-
-	bOldXmppId := toXmppByteString(oldXmppId)
-	bOldXmppKey := toByteKey(bPrefix, bOldXmppId, "xmpp")
-
-	bTgId := toTgByteString(chatId, msgId)
-	bXmppId := toXmppByteString(newXmppId)
-	bTgKey := toByteKey(bPrefix, bTgId, "tg")
-	bXmppKey := toByteKey(bPrefix, bXmppId, "xmpp")
-
-	return db.db.Update(func(txn *badger.Txn) error {
-		// save new pair
-		if err := txn.Set(bTgKey, bXmppId); err != nil {
-			return err
-		}
-		if err := txn.Set(bXmppKey, bTgId); err != nil {
-			return err
-		}
-		// delete old xmpp->tg entry
-		return txn.Delete(bOldXmppKey)
-	})
-}
-
-// ReplaceTgId replaces an old Tg ID with new Tg ID and keeps Tg chat ID and XMPP ID intact
-func (db *IdsDB) ReplaceTgId(tgAccount, xmppAccount string, chatId, oldMsgId, newMsgId int64) error {
-	// read old XMPP ID
-	xmppId, err := db.GetByTgIds(tgAccount, xmppAccount, chatId, oldMsgId)
-	if err != nil {
-		return err
-	}
-
-	bPrefix := toKeyPrefix(tgAccount, xmppAccount)
-
-	bOldTgId := toTgByteString(chatId, oldMsgId)
-	bOldTgKey := toByteKey(bPrefix, bOldTgId, "tg")
-
-	bTgId := toTgByteString(chatId, newMsgId)
-	bXmppId := toXmppByteString(xmppId)
-	bTgKey := toByteKey(bPrefix, bTgId, "tg")
-	bXmppKey := toByteKey(bPrefix, bXmppId, "xmpp")
-
-	return db.db.Update(func(txn *badger.Txn) error {
-		// save new pair
-		if err := txn.Set(bTgKey, bXmppId); err != nil {
-			return err
-		}
-		if err := txn.Set(bXmppKey, bTgId); err != nil {
-			return err
-		}
-		// delete old tg->xmpp entry
-		return txn.Delete(bOldTgKey)
-	})
-}
-
-// Gc compacts the value log
-func (db *IdsDB) Gc() {
-	db.db.RunValueLogGC(0.7)
-}
-
-// Close closes a DB
-func (db *IdsDB) Close() {
-	db.db.Close()
-}
--- a/badger/ids_test.go
+++ b/badger/ids_test.go
@ -1,72 +0,0 @@
-package badger
-
-import (
-	"reflect"
-	"testing"
-)
-
-func TestToKeyPrefix(t *testing.T) {
-	if !reflect.DeepEqual(toKeyPrefix("+123456789", "test@example.com"), []byte("+123456789/test@example.com/")) {
-		t.Error("Wrong prefix")
-	}
-}
-
-func TestToByteKey(t *testing.T) {
-	if !reflect.DeepEqual(toByteKey([]byte("ababa/galamaga/"), []byte("123"), "ppp"), []byte("ababa/galamaga/ppp/123")) {
-		t.Error("Wrong key")
-	}
-}
-
-func TestToTgByteString(t *testing.T) {
-	if !reflect.DeepEqual(toTgByteString(-2345, 6789), []byte("-2345/6789")) {
-		t.Error("Wrong tg string")
-	}
-}
-
-func TestToXmppByteString(t *testing.T) {
-	if !reflect.DeepEqual(toXmppByteString("aboba"), []byte("aboba")) {
-		t.Error("Wrong xmpp string")
-	}
-}
-
-func TestSplitTgByteStringUnparsable(t *testing.T) {
-	_, _, err := splitTgByteString([]byte("@#U*&$(@#"))
-	if err == nil {
-		t.Error("Unparsable should not be parsed")
-		return
-	}
-	if err.Error() != "Couldn't parse tg id pair" {
-		t.Error("Wrong parse error")
-	}
-}
-
-func TestSplitTgByteManyParts(t *testing.T) {
-	_, _, err := splitTgByteString([]byte("a/b/c/d"))
-	if err == nil {
-		t.Error("Should not parse many parts")
-		return
-	}
-	if err.Error() != "Couldn't parse tg id pair" {
-		t.Error("Wrong parse error")
-	}
-}
-
-func TestSplitTgByteNonNumeric(t *testing.T) {
-	_, _, err := splitTgByteString([]byte("0/a"))
-	if err == nil {
-		t.Error("Should not parse non-numeric msgid")
-	}
-}
-
-func TestSplitTgByteSuccess(t *testing.T) {
-	chatId, msgId, err := splitTgByteString([]byte("-198282398/23798478"))
-	if err != nil {
-		t.Error("Should be parsed well")
-	}
-	if chatId != -198282398 {
-		t.Error("Wrong chatId")
-	}
-	if msgId != 23798478 {
-		t.Error("Wrong msgId")
-	}
-}
--- a/config.yml.example
+++ b/config.yml.example
@ -4,8 +4,6 @@
        :path: '/var/www/telegabber/content' # webserver workdir
        :link: 'http://tlgrm.localhost/content' # webserver public address
        :upload: 'https:///xmppfiles.localhost' # xmpp http upload address
-        :user: 'www-data' # owner of content files
-        :quota: '256MB' # maximum storage size
    :tdlib_verbosity: 1
    :tdlib:
        :datadir: './sessions/'
--- a/config/config.go
+++ b/config/config.go
@ -38,8 +38,6 @@ type TelegramContentConfig struct {
 	Path   string `yaml:":path"`
 	Link   string `yaml:":link"`
 	Upload string `yaml:":upload"`
-	User   string `yaml:":user"`
-	Quota  string `yaml:":quota"`
 }

 // TelegramTdlibConfig is for :tdlib: subtree
--- a/config_schema.json
+++ b/config_schema.json
@ -21,12 +21,6 @@
            },
            ":upload": {
              "type": "string"
-            },
-            ":user": {
-              "type": "string"
-            },
-            ":quota": {
-              "type": "string"
            }
          }
        },
--- a/go.mod
+++ b/go.mod
@ -1,11 +1,10 @@
 module dev.narayana.im/narayana/telegabber

-go 1.19
+go 1.13

 require (
-	github.com/dgraph-io/badger/v4 v4.1.0
-	github.com/google/uuid v1.1.1
-	github.com/pkg/errors v0.9.1
+	github.com/Arman92/go-tdlib v0.0.0-20191002071913-526f4e1d15f7
+	github.com/pkg/errors v0.8.1
 	github.com/santhosh-tekuri/jsonschema v1.2.4
 	github.com/sirupsen/logrus v1.4.2
 	github.com/soheilhy/args v0.0.0-20150720134047-6bcf4c78e87e
@ -14,25 +13,4 @@ require (
 	gosrc.io/xmpp v0.5.2-0.20211214110136-5f99e1cd06e1
 )

-require (
-	github.com/cespare/xxhash/v2 v2.1.2 // indirect
-	github.com/dgraph-io/ristretto v0.1.1 // indirect
-	github.com/dustin/go-humanize v1.0.0 // indirect
-	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b // indirect
-	github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 // indirect
-	github.com/golang/protobuf v1.3.2 // indirect
-	github.com/golang/snappy v0.0.3 // indirect
-	github.com/google/flatbuffers v1.12.1 // indirect
-	github.com/klauspost/compress v1.12.3 // indirect
-	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
-	go.opencensus.io v0.22.5 // indirect
-	golang.org/x/net v0.7.0 // indirect
-	golang.org/x/sys v0.5.0 // indirect
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
-	nhooyr.io/websocket v1.6.5 // indirect
-)
-
-replace gosrc.io/xmpp => dev.narayana.im/narayana/go-xmpp v0.0.0-20240512132113-6725c3862314
-
-replace github.com/zelenin/go-tdlib => dev.narayana.im/narayana/go-tdlib v0.0.0-20240124222245-b4c12addb061
+replace gosrc.io/xmpp => dev.narayana.im/narayana/go-xmpp v0.0.0-20211218155535-e55463fc9829
--- a/go.sum
+++ b/go.sum
@ -1,39 +1,32 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-dev.narayana.im/narayana/go-tdlib v0.0.0-20230730021136-47da33180615 h1:RRUZJSro+k8FkazNx7QEYLVoO4wZtchvsd0Y2RBWjeU=
-dev.narayana.im/narayana/go-tdlib v0.0.0-20230730021136-47da33180615/go.mod h1:Xs8fXbk5n7VaPyrSs9DP7QYoBScWYsjX+lUcWmx1DIU=
-dev.narayana.im/narayana/go-tdlib v0.0.0-20231111182840-bc2f985e6268 h1:NCbc2bYuUGQsb/3z5SCIia3N34Ktwq3FwaUAfgF/WEU=
-dev.narayana.im/narayana/go-tdlib v0.0.0-20231111182840-bc2f985e6268/go.mod h1:Xs8fXbk5n7VaPyrSs9DP7QYoBScWYsjX+lUcWmx1DIU=
-dev.narayana.im/narayana/go-tdlib v0.0.0-20240124222245-b4c12addb061 h1:CWAQT74LwQne/3Po5KXDvudu3N0FBWm3XZZZhtl5j2w=
-dev.narayana.im/narayana/go-tdlib v0.0.0-20240124222245-b4c12addb061/go.mod h1:Xs8fXbk5n7VaPyrSs9DP7QYoBScWYsjX+lUcWmx1DIU=
-dev.narayana.im/narayana/go-xmpp v0.0.0-20220524203317-306b4ff58e8f h1:6249ajbMjgYz53Oq0IjTvjHXbxTfu29Mj1J/6swRHs4=
-dev.narayana.im/narayana/go-xmpp v0.0.0-20220524203317-306b4ff58e8f/go.mod h1:L3NFMqYOxyLz3JGmgFyWf7r9htE91zVGiK40oW4RwdY=
-dev.narayana.im/narayana/go-xmpp v0.0.0-20240131013505-18c46e6c59fd h1:+UW+E7JjI88aH4beDn1cw6D8rs1I061hN91HU4Y4pT8=
-dev.narayana.im/narayana/go-xmpp v0.0.0-20240131013505-18c46e6c59fd/go.mod h1:L3NFMqYOxyLz3JGmgFyWf7r9htE91zVGiK40oW4RwdY=
-dev.narayana.im/narayana/go-xmpp v0.0.0-20240512132113-6725c3862314 h1:29/NjOGOUDceO73Hk4Nj4uVa1je8MULJlsDSvKxSN/k=
-dev.narayana.im/narayana/go-xmpp v0.0.0-20240512132113-6725c3862314/go.mod h1:L3NFMqYOxyLz3JGmgFyWf7r9htE91zVGiK40oW4RwdY=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+dev.narayana.im/narayana/go-xmpp v0.0.0-20211218155535-e55463fc9829 h1:qe81G6+t1V1ySRMa7lSu5CayN5aP5GEiHXL2DYwHzuA=
+dev.narayana.im/narayana/go-xmpp v0.0.0-20211218155535-e55463fc9829/go.mod h1:L3NFMqYOxyLz3JGmgFyWf7r9htE91zVGiK40oW4RwdY=
+github.com/Arman92/go-tdlib v0.0.0-20191002071913-526f4e1d15f7 h1:GbV1Lv3lVHsSeKAqPTBem72OCsGjXntW4jfJdXciE+w=
+github.com/Arman92/go-tdlib v0.0.0-20191002071913-526f4e1d15f7/go.mod h1:ZzkRfuaFj8etIYMj/ECtXtgfz72RE6U+dos27b3XIwk=
 github.com/agnivade/wasmbrowsertest v0.3.1/go.mod h1:zQt6ZTdl338xxRaMW395qccVE2eQm0SjC/SDz0mPWQI=
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@ -43,43 +36,25 @@ github.com/go-interpreter/wagon v0.6.0/go.mod h1:5+b/MBYkclRZngKF5s6qrgWxSLgE9F5
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@ -95,9 +70,8 @@ github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+W
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 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
-google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
-google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
-google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
-google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
@ -207,9 +134,12 @@ gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gosrc.io/xmpp v0.1.3 h1:VYP1bA35irlQ1ZAJqNhJOz8NSsSTkzQRhREfmuG1H80=
+gosrc.io/xmpp v0.1.3/go.mod h1:fWixaMaFvx8cxXcJVJ5kU9csMeD/JN8on7ybassU8rY=
+gosrc.io/xmpp v0.5.2-0.20211214110136-5f99e1cd06e1 h1:E3uJqX6ImJL9AFdjGbiW04jq8IQ+NcOK+JSiWq2TbRw=
+gosrc.io/xmpp v0.5.2-0.20211214110136-5f99e1cd06e1/go.mod h1:L3NFMqYOxyLz3JGmgFyWf7r9htE91zVGiK40oW4RwdY=
 gotest.tools v2.1.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 gotest.tools/gotestsum v0.3.5/go.mod h1:Mnf3e5FUzXbkCfynWBGOwLssY7gTQgCHObK9tMpAriY=
-honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 mvdan.cc/sh v2.6.4+incompatible/go.mod h1:IeeQbZq+x2SUGBensq/jge5lLQbS3XT2ktyp3wrt4x8=
 nhooyr.io/websocket v1.6.5 h1:8TzpkldRfefda5JST+CnOH135bzVPz5uzfn/AF+gVKg=
 nhooyr.io/websocket v1.6.5/go.mod h1:F259lAzPRAH0htX2y3ehpJe09ih1aSHN7udWki1defY=
--- a/persistence/sessions.go
+++ b/persistence/sessions.go
@ -3,7 +3,6 @@ package persistence
 import (
 	"github.com/pkg/errors"
 	"io/ioutil"
-	"sync"
 	"time"

 	"dev.narayana.im/narayana/telegabber/yamldb"
@ -39,53 +38,23 @@ type Session struct {
 	Timezone    string `yaml:":timezone"`
 	KeepOnline  bool   `yaml:":keeponline"`
 	RawMessages bool   `yaml:":rawmessages"`
-	AsciiArrows     bool           `yaml:":asciiarrows"`
-	OOBMode         bool           `yaml:":oobmode"`
-	Carbons         bool           `yaml:":carbons"`
-	HideIds         bool           `yaml:":hideids"`
-	Receipts        bool           `yaml:":receipts"`
-	NativeEdits     bool           `yaml:":nativeedits"`
-	IgnoredChats    []int64        `yaml:":ignoredchats"`
-	ignoredChatsMap map[int64]bool `yaml:"-"`
-
-	IgnoreGroupDeletions bool `yaml:":ignoregroupdeletions"`
 }

-const (
-	PropertyTypeUnknown byte = iota
-	PropertyTypeString
-	PropertyTypeBool
-)
-
-var ConfigKeys = []string{
+var configKeys = []string{
 	"timezone",
 	"keeponline",
 	"rawmessages",
-	"asciiarrows",
-	"oobmode",
-	"carbons",
-	"hideids",
-	"receipts",
-	"nativeedits",
-	"ignoregroupdeletions",
 }

 var sessionDB *SessionsYamlDB
-var sessionsLock sync.Mutex

 // SessionMarshaller implementation for YamlDB
 func SessionMarshaller() ([]byte, error) {
 	cleanedMap := SessionsMap{}
 	emptySessionsMap(&cleanedMap)

-	sessionsLock.Lock()
-	defer sessionsLock.Unlock()
 	for jid, session := range sessionDB.Data.Sessions {
 		if session.Login != "" {
-			session.IgnoredChats = make([]int64, 0, len(session.ignoredChatsMap))
-			for chatID := range session.ignoredChatsMap {
-				session.IgnoredChats = append(session.IgnoredChats, chatID)
-			}
 			cleanedMap.Sessions[jid] = session
 		}
 	}
@ -127,16 +96,6 @@ func initYamlDB(path string, dataPtr *SessionsMap) (*SessionsYamlDB, error) {
 		emptySessionsMap(dataPtr)
 	}

-	// convert ignored users slice to map
-	for jid, session := range dataPtr.Sessions {
-		session.ignoredChatsMap = make(map[int64]bool)
-		for _, chatID := range session.IgnoredChats {
-			session.ignoredChatsMap[chatID] = true
-		}
-		session.IgnoredChats = nil
-		dataPtr.Sessions[jid] = session
-	}
-
 	return &SessionsYamlDB{
 		YamlDB: yamldb.YamlDB{
 			Path:    path,
@ -148,13 +107,6 @@ func initYamlDB(path string, dataPtr *SessionsMap) (*SessionsYamlDB, error) {

 // Get retrieves a session value
 func (s *Session) Get(key string) (string, error) {
-	sessionsLock.Lock()
-	defer sessionsLock.Unlock()
-
-	return s.get(key)
-}
-
-func (s *Session) get(key string) (string, error) {
 	switch key {
 	case "timezone":
 		return s.Timezone, nil
@ -162,20 +114,6 @@ func (s *Session) get(key string) (string, error) {
 		return fromBool(s.KeepOnline), nil
 	case "rawmessages":
 		return fromBool(s.RawMessages), nil
-	case "asciiarrows":
-		return fromBool(s.AsciiArrows), nil
-	case "oobmode":
-		return fromBool(s.OOBMode), nil
-	case "carbons":
-		return fromBool(s.Carbons), nil
-	case "hideids":
-		return fromBool(s.HideIds), nil
-	case "receipts":
-		return fromBool(s.Receipts), nil
-	case "nativeedits":
-		return fromBool(s.NativeEdits), nil
-	case "ignoregroupdeletions":
-		return fromBool(s.IgnoreGroupDeletions), nil
 	}

 	return "", errors.New("Unknown session property")
@ -183,12 +121,9 @@ func (s *Session) get(key string) (string, error) {

 // ToMap converts the session to a map
 func (s *Session) ToMap() map[string]string {
-	sessionsLock.Lock()
-	defer sessionsLock.Unlock()
-
 	m := make(map[string]string)
-	for _, configKey := range ConfigKeys {
-		value, _ := s.get(configKey)
+	for _, configKey := range configKeys {
+		value, _ := s.Get(configKey)
 		m[configKey] = value
 	}

@ -197,9 +132,6 @@ func (s *Session) ToMap() map[string]string {

 // Set sets a session value
 func (s *Session) Set(key string, value string) (string, error) {
-	sessionsLock.Lock()
-	defer sessionsLock.Unlock()
-
 	switch key {
 	case "timezone":
 		s.Timezone = value
@ -218,72 +150,11 @@ func (s *Session) Set(key string, value string) (string, error) {
 		}
 		s.RawMessages = b
 		return value, nil
-	case "asciiarrows":
-		b, err := toBool(value)
-		if err != nil {
-			return "", err
-		}
-		s.AsciiArrows = b
-		return value, nil
-	case "oobmode":
-		b, err := toBool(value)
-		if err != nil {
-			return "", err
-		}
-		s.OOBMode = b
-		return value, nil
-	case "carbons":
-		b, err := toBool(value)
-		if err != nil {
-			return "", err
-		}
-		s.Carbons = b
-		return value, nil
-	case "hideids":
-		b, err := toBool(value)
-		if err != nil {
-			return "", err
-		}
-		s.HideIds = b
-		return value, nil
-	case "receipts":
-		b, err := toBool(value)
-		if err != nil {
-			return "", err
-		}
-		s.Receipts = b
-		return value, nil
-	case "nativeedits":
-		b, err := toBool(value)
-		if err != nil {
-			return "", err
-		}
-		s.NativeEdits = b
-		return value, nil
-	case "ignoregroupdeletions":
-		b, err := toBool(value)
-		if err != nil {
-			return "", err
-		}
-		s.IgnoreGroupDeletions = b
-		return value, nil
 	}

 	return "", errors.New("Unknown session property")
 }

-// PropertyType determines the property type
-func PropertyType(key string) byte {
-	switch key {
-	case "timezone":
-		return PropertyTypeString
-	case "keeponline", "rawmessages", "asciiarrows", "oobmode", "carbons", "hideids",
-		"receipts", "nativeedits", "ignoregroupdeletions":
-		return PropertyTypeBool
-	}
-	return PropertyTypeUnknown
-}
-
 // TimezoneToLocation tries to convert config timezone to location
 func (s *Session) TimezoneToLocation() *time.Location {
 	time, err := time.Parse("-07:00", s.Timezone)
@ -295,51 +166,6 @@ func (s *Session) TimezoneToLocation() *time.Location {
 	return zeroLocation
 }

-// IgnoreChat adds a chat id to ignore list, returns false if already ignored
-func (s *Session) IgnoreChat(chatID int64) bool {
-	sessionsLock.Lock()
-	defer sessionsLock.Unlock()
-
-	if s.ignoredChatsMap == nil {
-		s.ignoredChatsMap = make(map[int64]bool)
-	} else if _, ok := s.ignoredChatsMap[chatID]; ok {
-		return false
-	}
-
-	s.ignoredChatsMap[chatID] = true
-	return true
-}
-
-// UnignoreChat removes a chat id from ignore list, returns false if not already ignored
-func (s *Session) UnignoreChat(chatID int64) bool {
-	sessionsLock.Lock()
-	defer sessionsLock.Unlock()
-
-	if s.ignoredChatsMap == nil {
-		return false
-	}
-
-	if _, ok := s.ignoredChatsMap[chatID]; !ok {
-		return false
-	}
-
-	delete(s.ignoredChatsMap, chatID)
-	return true
-}
-
-// IsChatIgnored checks the chat id against the ignore list
-func (s *Session) IsChatIgnored(chatID int64) bool {
-	sessionsLock.Lock()
-	defer sessionsLock.Unlock()
-
-	if s.ignoredChatsMap == nil {
-		return false
-	}
-
-	_, ok := s.ignoredChatsMap[chatID]
-	return ok
-}
-
 func fromBool(b bool) string {
 	if b {
 		return "true"
--- a/persistence/sessions_test.go
+++ b/persistence/sessions_test.go
@ -47,20 +47,12 @@ func TestSessionToMap(t *testing.T) {
 	session := Session{
 		Timezone:    "klsf",
 		RawMessages: true,
-		OOBMode:     true,
-		Receipts:    true,
 	}
 	m := session.ToMap()
 	sample := map[string]string{
 		"timezone":    "klsf",
 		"keeponline":  "false",
 		"rawmessages": "true",
-		"asciiarrows": "false",
-		"oobmode":     "true",
-		"carbons":     "false",
-		"hideids":     "false",
-		"receipts":    "true",
-		"nativeedits": "false",
 	}
 	if !reflect.DeepEqual(m, sample) {
 		t.Errorf("Map does not match the sample: %v", m)
@ -88,31 +80,3 @@ func TestSessionSetAbsent(t *testing.T) {
 		t.Error("There shouldn't come a donkey!")
 	}
 }
-
-func TestSessionIgnore(t *testing.T) {
-	session := Session{}
-	if session.IsChatIgnored(3) {
-		t.Error("Shouldn't be ignored yet")
-	}
-	if !session.IgnoreChat(3) {
-		t.Error("Shouldn't have been ignored")
-	}
-	if session.IgnoreChat(3) {
-		t.Error("Shouldn't ignore second time")
-	}
-	if !session.IsChatIgnored(3) {
-		t.Error("Should be ignored already")
-	}
-	if session.IsChatIgnored(-145) {
-		t.Error("Wrong chat is ignored")
-	}
-	if !session.UnignoreChat(3) {
-		t.Error("Should successfully unignore")
-	}
-	if session.UnignoreChat(3) {
-		t.Error("Should unignore second time")
-	}
-	if session.IsChatIgnored(3) {
-		t.Error("Shouldn't be ignored already")
-	}
-}
--- a/staging.Dockerfile
+++ b/staging.Dockerfile
@ -1,46 +0,0 @@
-FROM golang:1.19-bullseye AS base
-
-RUN apt-get update
-RUN apt-get install -y libssl-dev cmake build-essential gperf libz-dev make git php
-
-FROM base AS tdlib
-
-ARG TD_COMMIT
-ARG MAKEOPTS
-RUN git clone https://github.com/tdlib/td /src/
-RUN git -C /src/ checkout "${TD_COMMIT}"
-RUN mkdir build
-WORKDIR /build/
-RUN cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/compiled/ /src/
-RUN cmake --build . --target prepare_cross_compiling ${MAKEOPTS}
-WORKDIR /src/
-RUN php SplitSource.php
-WORKDIR /build/
-RUN cmake --build . ${MAKEOPTS}
-RUN make install
-
-FROM base AS cache
-ARG VERSION
-COPY --from=tdlib /compiled/ /usr/local/
-WORKDIR /src
-RUN go env -w GOCACHE=/go-cache
-RUN go env -w GOMODCACHE=/gomod-cache
-RUN --mount=type=cache,target=/gomod-cache \
-    --mount=type=bind,source=./,target=/src,rw \
-    /bin/bash -c 'go mod tidy; go get -t'
-
-FROM cache AS build
-ARG MAKEOPTS
-WORKDIR /src
-RUN --mount=type=bind,source=./,target=/src,rw \
-    --mount=type=cache,target=/go-cache \
-    --mount=type=cache,target=/gomod-cache \
-    --mount=type=cache,destination=/src/release \
-    make ${MAKEOPTS}
-
-FROM build AS release
-RUN --mount=type=cache,destination=/src/release \
-    cp /src/release/telegabber /
-
-FROM scratch AS binaries
-COPY --from=release /telegabber /
--- a/tdlib.Dockerfile
+++ b/tdlib.Dockerfile
@ -1,23 +0,0 @@
-FROM golang:1.19-bullseye AS base
-
-RUN apt-get update
-RUN apt-get install -y libssl-dev cmake build-essential gperf libz-dev make git php
-
-FROM base AS tdlib
-
-ARG TD_COMMIT
-ARG MAKEOPTS
-RUN git clone https://github.com/tdlib/td /src/
-RUN git -C /src/ checkout "${TD_COMMIT}"
-RUN mkdir build
-WORKDIR /build/
-RUN cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/compiled/ /src/
-RUN cmake --build . --target prepare_cross_compiling ${MAKEOPTS}
-WORKDIR /src/
-RUN php SplitSource.php
-WORKDIR /build/
-RUN cmake --build . ${MAKEOPTS}
-RUN make install
-
-FROM scratch AS binaries
-COPY --from=tdlib /compiled/ /
--- a/telegabber.go
+++ b/telegabber.go
@ -12,13 +12,9 @@ import (
 	"dev.narayana.im/narayana/telegabber/xmpp"

 	log "github.com/sirupsen/logrus"
-	"github.com/zelenin/go-tdlib/client"
 	goxmpp "gosrc.io/xmpp"
 )

-var version string = "1.12.8"
-var commit string
-
 var sm *goxmpp.StreamManager
 var component *goxmpp.Component
 var err error
@ -27,25 +23,13 @@ var cleanupDone chan struct{}
 var sigintChannel chan os.Signal

 func main() {
-	if commit != "" {
-		version = fmt.Sprintf("%v-%v", version, commit)
-	}
-
 	var profilingPort = flag.Int("profiling-port", 0, "The port for pprof server")
 	// YAML config, compatible with the format of Zhabogram 2.0.0
 	var configPath = flag.String("config", "config.yml", "Config file path")
 	// JSON schema (not for editing by a user)
 	var schemaPath = flag.String("schema", "./config_schema.json", "Schema file path")
-	// Folder for Badger DB of message ids
-	var idsPath = flag.String("ids", "ids", "Ids folder path")
-	var versionFlag = flag.Bool("version", false, "Print the version and exit")
 	flag.Parse()

-	if *versionFlag {
-		fmt.Printf("%v\n", version)
-		os.Exit(0)
-	}
-
 	if *profilingPort > 0 {
 		go func() {
 			log.Println(http.ListenAndServe(fmt.Sprintf("localhost:%v", *profilingPort), nil))
@ -61,14 +45,9 @@ func main() {
 		log.Fatal(err)
 	}

-	client.SetLogVerbosityLevel(&client.SetLogVerbosityLevelRequest{
-		NewVerbosityLevel: stringToTdlibLogConstant(config.Telegram.Loglevel),
-	})
 	SetLogrusLevel(config.XMPP.Loglevel)

-	log.Infof("Starting telegabber version %v", version)
-
-	sm, component, err = xmpp.NewComponent(config.XMPP, config.Telegram, *idsPath, version)
+	sm, component, err = xmpp.NewComponent(config.XMPP, config.Telegram)
 	if err != nil {
 		log.Fatal(err)
 	}
@ -93,25 +72,6 @@ func main() {
 	}
 }

-var tdlibLogConstants = map[string]int32{
-	":fatal":   0,
-	":error":   1,
-	":warn":    2,
-	":info":    3,
-	":debug":   4,
-	":verbose": 5,
-	":all":     1023,
-}
-
-func stringToTdlibLogConstant(c string) int32 {
-	level, ok := tdlibLogConstants[c]
-	if !ok {
-		level = 0
-	}
-
-	return level
-}
-
 func exit() {
 	xmpp.Close(component)
 	close(cleanupDone)
--- a/telegabber_test.go
+++ b/telegabber_test.go
@ -1,19 +0,0 @@
-package main
-
-import (
-	"testing"
-)
-
-func TestTdlibLogInfo(t *testing.T) {
-	tdlibConstant := stringToTdlibLogConstant(":info")
-	if tdlibConstant != 3 {
-		t.Errorf("Wrong TDlib constant for info")
-	}
-}
-
-func TestTdlibLogInvalid(t *testing.T) {
-	tdlibConstant := stringToTdlibLogConstant("ziz")
-	if tdlibConstant != 0 {
-		t.Errorf("Unknown strings should return fatal loglevel")
-	}
-}
--- a/telegram/cache/cache.go
+++ b/telegram/cache/cache.go
@ -16,8 +16,7 @@ type Status struct {
 // Cache allows operating the chats and users cache in
 // a thread-safe manner
 type Cache struct {
-	ownChats     map[int64]*client.Chat
-	auxChats     map[int64]*client.Chat
+	chats        map[int64]*client.Chat
 	users        map[int64]*client.User
 	statuses     map[int64]*Status
 	chatsLock    sync.Mutex
@ -28,8 +27,7 @@ type Cache struct {
 // NewCache initializes a cache
 func NewCache() *Cache {
 	return &Cache{
-		ownChats: map[int64]*client.Chat{},
-		auxChats: map[int64]*client.Chat{},
+		chats:    map[int64]*client.Chat{},
 		users:    map[int64]*client.User{},
 		statuses: map[int64]*Status{},
 	}
@ -42,23 +40,7 @@ func (cache *Cache) ChatsKeys() []int64 {
 	defer cache.chatsLock.Unlock()

 	var keys []int64
-	for id := range cache.ownChats {
-		keys = append(keys, id)
-	}
-	for id := range cache.auxChats {
-		keys = append(keys, id)
-	}
-	return keys
-}
-
-// OwnChatsKeys grabs only own chat ids synchronously to avoid lockups
-// while they are used
-func (cache *Cache) OwnChatsKeys() []int64 {
-	cache.chatsLock.Lock()
-	defer cache.chatsLock.Unlock()
-
-	var keys []int64
-	for id := range cache.ownChats {
+	for id := range cache.chats {
 		keys = append(keys, id)
 	}
 	return keys
@ -102,10 +84,7 @@ func (cache *Cache) GetChat(id int64) (*client.Chat, bool) {
 	cache.chatsLock.Lock()
 	defer cache.chatsLock.Unlock()

-	chat, ok := cache.ownChats[id]
-	if !ok {
-		chat, ok = cache.auxChats[id]
-	}
+	chat, ok := cache.chats[id]
 	return chat, ok
 }

@ -128,21 +107,11 @@ func (cache *Cache) GetStatus(id int64) (*Status, bool) {
 }

 // SetChat stores a chat in the cache
-func (cache *Cache) SetChat(id int64, chat *client.Chat, own bool) {
+func (cache *Cache) SetChat(id int64, chat *client.Chat) {
 	cache.chatsLock.Lock()
 	defer cache.chatsLock.Unlock()

-	if own {
-		cache.ownChats[id] = chat
-		// move from aux to own, but not vice versa
-		// (own: true means that presences for the chat are needed
-		// for sure, false means just "not necessarily")
-		if _, ok := cache.auxChats[id]; ok {
-			delete(cache.auxChats, id)
-		}
-	} else {
-		cache.auxChats[id] = chat
-	}
+	cache.chats[id] = chat
 }

 // SetUser stores a user in the cache
@ -164,13 +133,3 @@ func (cache *Cache) SetStatus(id int64, show string, status string) {
 		Description: status,
 	}
 }
-
-// Destruct splits a cached status into show, description and type
-func (status *Status) Destruct() (show, description, typ string) {
-	show, description = status.XMPP, status.Description
-	if show == "unavailable" {
-		typ = show
-		show = ""
-	}
-	return
-}
--- a/telegram/client.go
+++ b/telegram/client.go
@ -15,61 +15,40 @@ import (
 	"gosrc.io/xmpp"
 )

+var logConstants = map[string]int32{
+	":fatal":   0,
+	":error":   1,
+	":warn":    2,
+	":info":    3,
+	":debug":   4,
+	":verbose": 5,
+	":all":     1023,
+}
+
+func stringToLogConstant(c string) int32 {
+	level, ok := logConstants[c]
+	if !ok {
+		level = 0
+	}
+
+	return level
+}
+
 // DelayedStatus describes an online status expiring on timeout
 type DelayedStatus struct {
 	TimestampOnline  int64
 	TimestampExpired int64
 }

-// HashedAvatar stores a SHA-1 hash and a Telegram file ID
-type HashedAvatar struct {
-	Hash string
-	File int32
-}
-
-// NewId stores message ids and timestamps of their additions so old ones can be truncated to save memory
-type newId struct {
-	Id      int64
-	Ts      int64
-	lock    sync.Mutex
-	ownLock sync.Mutex
-	locked  bool
-	fired   bool
-}
-
-func newNewId() *newId {
-	return &newId{Ts: time.Now().Unix()}
-}
-
-func (i *newId) Lock() {
-	i.ownLock.Lock()
-	if i.fired {
-		i.ownLock.Unlock()
-		return
-	}
-	i.locked = true
-	i.ownLock.Unlock()
-	i.lock.Lock()
-}
-
-func (i *newId) Unlock() {
-	i.ownLock.Lock()
-	if i.locked {
-		i.lock.Unlock()
-		i.locked = false
-		i.fired = true
-	}
-	i.ownLock.Unlock()
-}
-
 // Client stores the metadata for lazily invoked TDlib instance
 type Client struct {
 	client     *client.Client
 	authorizer *clientAuthorizer
-	parameters *client.SetTdlibParametersRequest
+	parameters *client.TdlibParameters
 	options    []client.Option
 	me         *client.User

+	resource  string
 	xmpp      *xmpp.Component
 	jid       string
 	Session   *persistence.Session
@ -78,60 +57,26 @@ type Client struct {
 	cache     *cache.Cache
 	online    bool

-	loginWizard *loginWizardMetadata
-
-	lastAuthorizationStateType string
-
-	outbox     map[string]string
-	editOutbox map[string]string
-
 	DelayedStatuses     map[int64]*DelayedStatus
 	DelayedStatusesLock sync.Mutex

-	lastMsgHashes map[int64]uint64
-	lastMsgIds    map[int64]string
-
-	LastBotCmdString string
-
-	XmppClientFeatures     map[string]*[]string
-	XmppClientFeaturesLock sync.Mutex
-
-	AvatarHashes     map[int64]*HashedAvatar
-	AvatarHashesLock sync.Mutex
-
-	MessageIdChanges     map[int64]map[int64]*newId
-	MessageIdChangesLock sync.Mutex
-
 	locks clientLocks
-	SendMessageLock sync.Mutex
 }

 type clientLocks struct {
-	authorizationReady sync.Mutex
+	authorizationReady sync.WaitGroup
 	chatMessageLocks   map[int64]*sync.Mutex
 	resourcesLock      sync.Mutex
-	outboxLock         sync.Mutex
-	editOutboxLock     sync.Mutex
-	lastMsgHashesLock  sync.Mutex
-	lastMsgIdsLock     sync.RWMutex
-
-	authorizerReadLock  sync.Mutex
-	authorizerWriteLock sync.Mutex
-
-	loginWizardReadLock  sync.Mutex
-	loginWizardWriteLock sync.Mutex
-}
-
-type loginWizardMetadata struct {
-	nextStage   chan string
-	chanBusy    bool
-	commandSent bool
 }

 // NewClient instantiates a Telegram App
 func NewClient(conf config.TelegramConfig, jid string, component *xmpp.Component, session *persistence.Session) (*Client, error) {
 	var options []client.Option

+	options = append(options, client.WithLogVerbosity(&client.SetLogVerbosityLevelRequest{
+		NewVerbosityLevel: stringToLogConstant(conf.Loglevel),
+	}))
+
 	if conf.Tdlib.Client.CatchTimeout != 0 {
 		options = append(options, client.WithCatchTimeout(
 			time.Duration(conf.Tdlib.Client.CatchTimeout)*time.Second,
@ -148,7 +93,7 @@ func NewClient(conf config.TelegramConfig, jid string, component *xmpp.Component
 		datadir = "./sessions/" // ye olde defaute
 	}

-	parameters := client.SetTdlibParametersRequest{
+	parameters := client.TdlibParameters{
 		UseTestDc: false,

 		DatabaseDirectory: filepath.Join(datadir, jid),
@ -171,23 +116,22 @@ func NewClient(conf config.TelegramConfig, jid string, component *xmpp.Component
 		IgnoreFileNames:        false,
 	}

+	resource := conf.Tdlib.Client.DeviceModel
+	if resource == "" {
+		resource = "telegabber"
+	}
+
 	return &Client{
 		parameters:      &parameters,
+		resource:        resource,
 		xmpp:            component,
 		jid:             jid,
 		Session:         session,
 		resources:       make(map[string]bool),
 		content:         &conf.Content,
 		cache:           cache.NewCache(),
-		outbox:             make(map[string]string),
-		editOutbox:         make(map[string]string),
 		options:         options,
 		DelayedStatuses: make(map[int64]*DelayedStatus),
-		lastMsgHashes:      make(map[int64]uint64),
-		lastMsgIds:         make(map[int64]string),
-		XmppClientFeatures: make(map[string]*[]string),
-		AvatarHashes:       make(map[int64]*HashedAvatar),
-		MessageIdChanges:   make(map[int64]map[int64]*newId),
 		locks: clientLocks{
 			chatMessageLocks: make(map[int64]*sync.Mutex),
 		},
--- a/telegram/client_test.go
+++ b/telegram/client_test.go
@ -0,0 +1,19 @@
+package telegram
+
+import (
+	"testing"
+)
+
+func TestLogInfo(t *testing.T) {
+	tdlibConstant := stringToLogConstant(":info")
+	if tdlibConstant != 3 {
+		t.Errorf("Wrong TDlib constant for info")
+	}
+}
+
+func TestLogInvalid(t *testing.T) {
+	tdlibConstant := stringToLogConstant("ziz")
+	if tdlibConstant != 0 {
+		t.Errorf("Unknown strings should return fatal loglevel")
+	}
+}
--- a/telegram/commands.go
+++ b/telegram/commands.go
--- a/telegram/connect.go
+++ b/telegram/connect.go
@ -2,7 +2,7 @@ package telegram

 import (
 	"github.com/pkg/errors"
-	"time"
+	"strconv"

 	"dev.narayana.im/narayana/telegabber/xmpp/gateway"

@ -13,25 +13,25 @@ import (
 const chatsLimit int32 = 999

 type clientAuthorizer struct {
-	TdlibParameters chan *client.SetTdlibParametersRequest
+	TdlibParameters chan *client.TdlibParameters
 	PhoneNumber     chan string
 	Code            chan string
 	State           chan client.AuthorizationState
 	Password        chan string
-	FirstName       chan string
-	LastName        chan string
-	isClosed        bool
 }

 func (stateHandler *clientAuthorizer) Handle(c *client.Client, state client.AuthorizationState) error {
-	if stateHandler.isClosed {
-		return errors.New("Channel is closed")
-	}
 	stateHandler.State <- state

 	switch state.AuthorizationStateType() {
 	case client.TypeAuthorizationStateWaitTdlibParameters:
-		_, err := c.SetTdlibParameters(<-stateHandler.TdlibParameters)
+		_, err := c.SetTdlibParameters(&client.SetTdlibParametersRequest{
+			Parameters: <-stateHandler.TdlibParameters,
+		})
+		return err
+
+	case client.TypeAuthorizationStateWaitEncryptionKey:
+		_, err := c.CheckDatabaseEncryptionKey(&client.CheckDatabaseEncryptionKeyRequest{})
 		return err

 	case client.TypeAuthorizationStateWaitPhoneNumber:
@ -52,11 +52,7 @@ func (stateHandler *clientAuthorizer) Handle(c *client.Client, state client.Auth
 		return err

 	case client.TypeAuthorizationStateWaitRegistration:
-		_, err := c.RegisterUser(&client.RegisterUserRequest{
-			FirstName: <-stateHandler.FirstName,
-			LastName:  <-stateHandler.LastName,
-		})
-		return err
+		return client.ErrNotSupportedAuthorizationState

 	case client.TypeAuthorizationStateWaitPassword:
 		_, err := c.CheckAuthenticationPassword(&client.CheckAuthenticationPasswordRequest{
@ -68,10 +64,10 @@ func (stateHandler *clientAuthorizer) Handle(c *client.Client, state client.Auth
 		return nil

 	case client.TypeAuthorizationStateLoggingOut:
-		return nil
+		return client.ErrNotSupportedAuthorizationState

 	case client.TypeAuthorizationStateClosing:
-		return nil
+		return client.ErrNotSupportedAuthorizationState

 	case client.TypeAuthorizationStateClosed:
 		return client.ErrNotSupportedAuthorizationState
@ -81,55 +77,41 @@ func (stateHandler *clientAuthorizer) Handle(c *client.Client, state client.Auth
 }

 func (stateHandler *clientAuthorizer) Close() {
-	if stateHandler.isClosed {
-		return
-	}
-	stateHandler.isClosed = true
 	close(stateHandler.TdlibParameters)
 	close(stateHandler.PhoneNumber)
 	close(stateHandler.Code)
 	close(stateHandler.State)
 	close(stateHandler.Password)
-	close(stateHandler.FirstName)
-	close(stateHandler.LastName)
 }

 // Connect starts TDlib connection
 func (c *Client) Connect(resource string) error {
-	log.Warn("Attempting to connect to Telegram network...")
-
 	// avoid conflict if another authorization is pending already
-	c.locks.authorizationReady.Lock()
+	c.locks.authorizationReady.Wait()

 	if c.Online() {
 		c.roster(resource)
-		c.locks.authorizationReady.Unlock()
 		return nil
 	}

 	log.Warn("Connecting to Telegram network...")

-	c.locks.authorizerWriteLock.Lock()
 	c.authorizer = &clientAuthorizer{
-		TdlibParameters: make(chan *client.SetTdlibParametersRequest, 1),
+		TdlibParameters: make(chan *client.TdlibParameters, 1),
 		PhoneNumber:     make(chan string, 1),
 		Code:            make(chan string, 1),
 		State:           make(chan client.AuthorizationState, 10),
 		Password:        make(chan string, 1),
-		FirstName:       make(chan string, 1),
-		LastName:        make(chan string, 1),
 	}

+	c.locks.authorizationReady.Add(1)
+
 	go c.interactor()
-	log.Warn("Interactor launched")

 	c.authorizer.TdlibParameters <- c.parameters
-	c.locks.authorizerWriteLock.Unlock()

 	tdlibClient, err := client.NewClient(c.authorizer, c.options...)
 	if err != nil {
-		c.locks.authorizationReady.Unlock()
-		c.wizardStageOrPrompt("cancel", "")
 		return errors.Wrap(err, "Couldn't initialize a Telegram client instance")
 	}

@ -138,8 +120,6 @@ func (c *Client) Connect(resource string) error {
 	// stage 3: if a client is succesfully created, AuthorizationStateReady is already reached
 	log.Warn("Authorization successful!")

-	c.wizardStageOrPrompt("success", "")
-
 	c.me, err = c.client.GetMe()
 	if err != nil {
 		log.Error("Could not retrieve me info")
@ -149,68 +129,25 @@ func (c *Client) Connect(resource string) error {

 	go c.updateHandler()
 	c.online = true
-	c.locks.authorizationReady.Unlock()
+	c.locks.authorizationReady.Done()
 	c.addResource(resource)

 	go func() {
-		chats, err := c.client.GetChats(&client.GetChatsRequest{
+		_, err = c.client.GetChats(&client.GetChatsRequest{
 			Limit: chatsLimit,
 		})
 		if err != nil {
 			log.Errorf("Could not retrieve chats: %v", err)
-		} else {
-			log.Infof("Obtained ≈%v chats for initialization", chats.TotalCount)
 		}

-		gateway.SubscribeToTransport(c.xmpp, c.jid)
-		c.sendPresence(gateway.SPStatus("Logged in as: " + c.Session.Login))
+		gateway.SendPresence(c.xmpp, c.jid, gateway.SPType("subscribe"))
+		gateway.SendPresence(c.xmpp, c.jid, gateway.SPType("subscribed"))
+		gateway.SendPresence(c.xmpp, c.jid, gateway.SPStatus("Logged in as: "+c.Session.Login))
 	}()

 	return nil
 }

-func (c *Client) TryLogin(resource string, login string) error {
-	wasSessionLoginEmpty := c.Session.Login == ""
-	c.Session.Login = login
-
-	if wasSessionLoginEmpty && c.authorizer == nil {
-		go func() {
-			err := c.Connect(resource)
-			if err != nil {
-				log.Error(errors.Wrap(err, "TDlib connection failure"))
-			}
-		}()
-		// a quirk for authorizer to become ready. If it's still not,
-		// nothing bad: just re-login again
-		time.Sleep(1e5)
-	}
-
-	c.locks.authorizerWriteLock.Lock()
-	defer c.locks.authorizerWriteLock.Unlock()
-
-	if c.authorizer == nil {
-		return errors.New(TelegramNotInitialized)
-	}
-
-	if c.authorizer.isClosed {
-		return errors.New(TelegramAuthDone)
-	}
-
-	return nil
-}
-
-func (c *Client) SetPhoneNumber(login string) error {
-	c.locks.authorizerWriteLock.Lock()
-	defer c.locks.authorizerWriteLock.Unlock()
-
-	if c.authorizer == nil || c.authorizer.isClosed {
-		return errors.New("Authorization not needed")
-	}
-
-	c.authorizer.PhoneNumber <- login
-	return nil
-}
-
 // Disconnect drops TDlib connection and
 // returns the flag indicating if disconnecting is permitted
 func (c *Client) Disconnect(resource string, quit bool) bool {
@ -231,28 +168,29 @@ func (c *Client) Disconnect(resource string, quit bool) bool {
 	log.Warn("Disconnecting from Telegram network...")

 	// we're offline (unsubscribe if logout)
-	for _, id := range c.cache.OwnChatsKeys() {
-		args := gateway.SimplePresence(id, "unavailable")
-		c.sendPresence(args...)
+	for _, id := range c.cache.ChatsKeys() {
+		gateway.SendPresence(
+			c.xmpp,
+			c.jid,
+			gateway.SPFrom(strconv.FormatInt(id, 10)),
+			gateway.SPType("unavailable"),
+		)
 	}

-	c.close()
+	_, err := c.client.Close()
+	if err != nil {
+		log.Errorf("Couldn't close the Telegram instance: %v; %#v", err, c)
+	}
+	c.forceClose()

 	return true
 }

 func (c *Client) interactor() {
 	for {
-		c.locks.authorizerReadLock.Lock()
-		if c.authorizer == nil {
-			log.Warn("Authorizer is lost, halting the interactor")
-			c.locks.authorizerReadLock.Unlock()
-			return
-		}
 		state, ok := <-c.authorizer.State
 		if !ok {
 			log.Warn("Interactor is disconnected")
-			c.locks.authorizerReadLock.Unlock()
 			return
 		}

@ -260,8 +198,6 @@ func (c *Client) interactor() {
 		log.Infof("Telegram authorization state: %#v", stateType)
 		log.Debugf("%#v", state)

-		c.lastAuthorizationStateType = stateType
-
 		switch stateType {
 		// stage 0: set login
 		case client.TypeAuthorizationStateWaitPhoneNumber:
@ -269,58 +205,25 @@ func (c *Client) interactor() {
 			if c.Session.Login != "" {
 				c.authorizer.PhoneNumber <- c.Session.Login
 			} else {
-				c.wizardStageOrPrompt("login", "Please, enter your Telegram login via /login 12345, or use the Login Wizard via Ad-Hoc commands")
+				gateway.SendMessage(c.jid, "", "Please, enter your Telegram login via /login 12345", c.xmpp)
 			}
 		// stage 1: wait for auth code
 		case client.TypeAuthorizationStateWaitCode:
 			log.Warn("Waiting for authorization code...")
-			c.wizardStageOrPrompt("code", "Please, enter authorization code via /code 12345")
-		// stage 1b: wait for registration
-		case client.TypeAuthorizationStateWaitRegistration:
-			log.Warn("Waiting for full name...")
-			gateway.SendServiceMessage(c.jid, "This number is not registered yet! Please, enter your name via /setname John Doe", c.xmpp)
+			gateway.SendMessage(c.jid, "", "Please, enter authorization code via /code 12345", c.xmpp)
 		// stage 2: wait for 2fa
 		case client.TypeAuthorizationStateWaitPassword:
 			log.Warn("Waiting for 2FA password...")
-			c.wizardStageOrPrompt("password", "Please, enter 2FA passphrase via /password 12345")
+			gateway.SendMessage(c.jid, "", "Please, enter 2FA passphrase via /password 12345", c.xmpp)
 		}
-		c.locks.authorizerReadLock.Unlock()
 	}
 }

 func (c *Client) forceClose() {
-	c.locks.authorizerReadLock.Lock()
-	c.locks.authorizerWriteLock.Lock()
-	defer c.locks.authorizerReadLock.Unlock()
-	defer c.locks.authorizerWriteLock.Unlock()
-
 	c.online = false
 	c.authorizer = nil
 }

-func (c *Client) close() {
-	c.locks.authorizerWriteLock.Lock()
-	if c.authorizer != nil && !c.authorizer.isClosed {
-		log.Debug("Closing authorizer")
-		c.authorizer.Close()
-	}
-	c.locks.authorizerWriteLock.Unlock()
-
-	if c.client != nil {
-		_, err := c.client.Close()
-		if err != nil {
-			log.Errorf("Couldn't close the Telegram instance: %v; %#v", err, c)
-		}
-	}
-	c.forceClose()
-}
-
-func (c *Client) cancelAuth() {
-	c.StopLoginWizard()
-	c.close()
-	c.Session.Login = ""
-}
-
 // Online checks if the updates listener is alive
 func (c *Client) Online() bool {
 	return c.online
--- a/telegram/formatter/formatter.go
+++ b/telegram/formatter/formatter.go
@ -2,56 +2,30 @@ package formatter

 import (
 	"sort"
-	"unicode"

 	log "github.com/sirupsen/logrus"
 	"github.com/zelenin/go-tdlib/client"
 )

-type insertionType int
-
-const (
-	insertionOpening insertionType = iota
-	insertionClosing
-	insertionUnpaired
-)
-
-type MarkupModeType int
-
-const (
-	MarkupModeXEP0393 MarkupModeType = iota
-	MarkupModeMarkdown
-)
-
-// insertion is a piece of text in given position
-type insertion struct {
+// Insertion is a piece of text in given position
+type Insertion struct {
 	Offset int32
 	Runes  []rune
-	Type   insertionType
 }

-// insertionStack contains the sequence of insertions
+// InsertionStack contains the sequence of insertions
 // from the start or from the end
-type insertionStack []*insertion
+type InsertionStack []*Insertion

 var boldRunesMarkdown = []rune("**")
 var boldRunesXEP0393 = []rune("*")
 var italicRunes = []rune("_")
-var strikeRunesMarkdown = []rune("~~")
-var strikeRunesXEP0393 = []rune("~")
-var codeRunes = []rune("`")
-var preRunesStart = []rune("```\n")
-var preRunesEnd = []rune("\n```")
-var quoteRunes = []rune("> ")
-var newlineRunes = []rune("\n")
-var doubleNewlineRunes = []rune("\n\n")
-var newlineCode = rune(0x0000000a)
-var bmpCeil = rune(0x0000ffff)
+var codeRunes = []rune("\n```\n")

-// rebalance pumps all the values until the given offset to current stack (growing
+// rebalance pumps all the values at given offset to current stack (growing
 // from start) from given stack (growing from end); should be called
 // before any insertions to the current stack at the given offset
-func (s insertionStack) rebalance(s2 insertionStack, offset int32) (insertionStack, insertionStack) {
+func (s InsertionStack) rebalance(s2 InsertionStack, offset int32) (InsertionStack, InsertionStack) {
 	for len(s2) > 0 && s2[len(s2)-1].Offset <= offset {
 		s = append(s, s2[len(s2)-1])
 		s2 = s2[:len(s2)-1]
@ -62,10 +36,10 @@ func (s insertionStack) rebalance(s2 insertionStack, offset int32) (insertionSta

 // NewIterator is a second order function that sequentially scans and returns
 // stack elements; starts returning nil when elements are ended
-func (s insertionStack) NewIterator() func() *insertion {
+func (s InsertionStack) NewIterator() func() *Insertion {
 	i := -1

-	return func() *insertion {
+	return func() *Insertion {
 		i++
 		if i < len(s) {
 			return s[i]
@ -80,8 +54,8 @@ func SortEntities(entities []*client.TextEntity) []*client.TextEntity {
 	copy(sortedEntities, entities)

 	sort.Slice(sortedEntities, func(i int, j int) bool {
-		entity1 := sortedEntities[i]
-		entity2 := sortedEntities[j]
+		entity1 := entities[i]
+		entity2 := entities[j]
 		if entity1.Offset < entity2.Offset {
 			return true
 		} else if entity1.Offset == entity2.Offset {
@ -92,271 +66,74 @@ func SortEntities(entities []*client.TextEntity) []*client.TextEntity {
 	return sortedEntities
 }

-// MergeAdjacentEntities merges entities of a same kind
-func MergeAdjacentEntities(entities []*client.TextEntity) []*client.TextEntity {
-	mergedEntities := make([]*client.TextEntity, 0, len(entities))
-	excludedIndices := make(map[int]bool)
-
-	for i, entity := range entities {
-		if excludedIndices[i] || entity.Type == nil {
-			continue
-		}
-
-		typ := entity.Type.TextEntityTypeType()
-		start := entity.Offset
-		end := start + entity.Length
-		ei := make(map[int]bool)
-
-		// collect continuations
-		for j, entity2 := range entities[i+1:] {
-			if entity2.Type != nil && entity2.Type.TextEntityTypeType() == typ && entity2.Offset == end {
-				end += entity2.Length
-				ei[j+i+1] = true
-			}
-		}
-
-		// check for intersections with other entities
-		var isIntersecting bool
-		if len(ei) > 0 {
-			for _, entity2 := range entities {
-				entity2End := entity2.Offset + entity2.Length
-				if (entity2.Offset < start && entity2End > start && entity2End < end) ||
-					(entity2.Offset > start && entity2.Offset < end && entity2End > end) {
-					isIntersecting = true
-					break
-				}
-			}
-		}
-
-		if !isIntersecting {
-			entity.Length = end - start
-			for j := range ei {
-				excludedIndices[j] = true
-			}
-		}
-		mergedEntities = append(mergedEntities, entity)
-	}
-
-	return mergedEntities
-}
-
-// ClaspDirectives to the following span as required by XEP-0393
-func ClaspDirectives(doubledRunes []rune, entities []*client.TextEntity) []*client.TextEntity {
-	alignedEntities := make([]*client.TextEntity, len(entities))
-	copy(alignedEntities, entities)
-
-	for i, entity := range alignedEntities {
-		var dirty bool
-		endOffset := entity.Offset + entity.Length
-
-		if unicode.IsSpace(doubledRunes[entity.Offset]) {
-			for j, r := range doubledRunes[entity.Offset+1 : endOffset] {
-				if !unicode.IsSpace(r) {
-					dirty = true
-					entity.Offset += int32(j + 1)
-					entity.Length -= int32(j + 1)
-					break
-				}
-			}
-		}
-		if unicode.IsSpace(doubledRunes[endOffset-1]) {
-			for j := endOffset - 2; j >= entity.Offset; j-- {
-				if !unicode.IsSpace(doubledRunes[j]) {
-					dirty = true
-					entity.Length = j + 1 - entity.Offset
-					break
-				}
-			}
-		}
-
-		if dirty {
-			alignedEntities[i] = entity
-		}
-	}
-
-	return alignedEntities
-}
-
-func markupBraces(entity *client.TextEntity, lbrace, rbrace []rune) []*insertion {
-	return []*insertion{
-		&insertion{
+func markupBraces(entity *client.TextEntity, lbrace, rbrace []rune) (*Insertion, *Insertion) {
+	return &Insertion{
 			Offset: entity.Offset,
 			Runes:  lbrace,
-			Type:   insertionOpening,
-		},
-		&insertion{
+		}, &Insertion{
 			Offset: entity.Offset + entity.Length,
 			Runes:  rbrace,
-			Type:   insertionClosing,
-		},
 		}
 }

-func quotePrependNewlines(entity *client.TextEntity, doubledRunes []rune, markupMode MarkupModeType) []*insertion {
-	if len(doubledRunes) == 0 {
-		return []*insertion{}
-	}
-
-	startRunes := []rune("\n> ")
-	if entity.Offset == 0 || doubledRunes[entity.Offset-1] == newlineCode {
-		startRunes = quoteRunes
-	}
-	insertions := []*insertion{
-		&insertion{
-			Offset: entity.Offset,
-			Runes:  startRunes,
-			Type:   insertionUnpaired,
-		},
-	}
-
-	entityEnd := entity.Offset + entity.Length
-	entityEndInt := int(entityEnd)
-
-	var wasNewline bool
-	// last newline is omitted, there's no need to put quote mark after the quote
-	for i := entity.Offset; i < entityEnd-1; i++ {
-		isNewline := doubledRunes[i] == newlineCode
-		if (isNewline && markupMode == MarkupModeXEP0393) || (wasNewline && isNewline && markupMode == MarkupModeMarkdown) {
-			insertions = append(insertions, &insertion{
-				Offset: i + 1,
-				Runes:  quoteRunes,
-				Type:   insertionUnpaired,
-			})
-		}
-
-		if isNewline {
-			wasNewline = true
-		} else {
-			wasNewline = false
-		}
-	}
-
-	var rbrace []rune
-	if len(doubledRunes) > entityEndInt {
-		if doubledRunes[entityEnd] == newlineCode {
-			if markupMode == MarkupModeMarkdown && len(doubledRunes) > entityEndInt+1 && doubledRunes[entityEndInt+1] != newlineCode {
-				rbrace = newlineRunes
-			}
-		} else {
-			if markupMode == MarkupModeMarkdown {
-				rbrace = doubleNewlineRunes
-			} else {
-				rbrace = newlineRunes
-			}
-		}
-	}
-	insertions = append(insertions, &insertion{
-		Offset: entityEnd,
-		Runes:  rbrace,
-		Type:   insertionClosing,
-	})
-
-	return insertions
-}
-
-// entityToMarkdown generates the wrapping Markdown tags
-func entityToMarkdown(entity *client.TextEntity, doubledRunes []rune, markupMode MarkupModeType) []*insertion {
-	if entity == nil || entity.Type == nil {
-		return []*insertion{}
-	}
-
+// EntityToMarkdown generates the wrapping Markdown tags
+func EntityToMarkdown(entity *client.TextEntity) (*Insertion, *Insertion) {
 	switch entity.Type.TextEntityTypeType() {
 	case client.TypeTextEntityTypeBold:
 		return markupBraces(entity, boldRunesMarkdown, boldRunesMarkdown)
 	case client.TypeTextEntityTypeItalic:
 		return markupBraces(entity, italicRunes, italicRunes)
-	case client.TypeTextEntityTypeStrikethrough:
-		return markupBraces(entity, strikeRunesMarkdown, strikeRunesMarkdown)
-	case client.TypeTextEntityTypeCode:
+	case client.TypeTextEntityTypeCode, client.TypeTextEntityTypePre:
 		return markupBraces(entity, codeRunes, codeRunes)
-	case client.TypeTextEntityTypePre:
-		return markupBraces(entity, preRunesStart, preRunesEnd)
 	case client.TypeTextEntityTypePreCode:
 		preCode, _ := entity.Type.(*client.TextEntityTypePreCode)
-		return markupBraces(entity, []rune("\n```"+preCode.Language+"\n"), preRunesEnd)
-	case client.TypeTextEntityTypeBlockQuote:
-		return quotePrependNewlines(entity, doubledRunes, MarkupModeMarkdown)
+		return markupBraces(entity, []rune("\n```"+preCode.Language+"\n"), codeRunes)
 	case client.TypeTextEntityTypeTextUrl:
 		textURL, _ := entity.Type.(*client.TextEntityTypeTextUrl)
 		return markupBraces(entity, []rune("["), []rune("]("+textURL.Url+")"))
 	}

-	return []*insertion{}
-}
-
-// entityToXEP0393 generates the wrapping XEP-0393 tags
-func entityToXEP0393(entity *client.TextEntity, doubledRunes []rune, markupMode MarkupModeType) []*insertion {
-	if entity == nil || entity.Type == nil {
-		return []*insertion{}
+	return nil, nil
 }

+// EntityToXEP0393 generates the wrapping XEP-0393 tags
+func EntityToXEP0393(entity *client.TextEntity) (*Insertion, *Insertion) {
 	switch entity.Type.TextEntityTypeType() {
 	case client.TypeTextEntityTypeBold:
 		return markupBraces(entity, boldRunesXEP0393, boldRunesXEP0393)
 	case client.TypeTextEntityTypeItalic:
 		return markupBraces(entity, italicRunes, italicRunes)
-	case client.TypeTextEntityTypeStrikethrough:
-		return markupBraces(entity, strikeRunesXEP0393, strikeRunesXEP0393)
-	case client.TypeTextEntityTypeCode:
+	case client.TypeTextEntityTypeCode, client.TypeTextEntityTypePre:
 		return markupBraces(entity, codeRunes, codeRunes)
-	case client.TypeTextEntityTypePre:
-		return markupBraces(entity, preRunesStart, preRunesEnd)
 	case client.TypeTextEntityTypePreCode:
 		preCode, _ := entity.Type.(*client.TextEntityTypePreCode)
-		return markupBraces(entity, []rune("\n```"+preCode.Language+"\n"), preRunesEnd)
-	case client.TypeTextEntityTypeBlockQuote:
-		return quotePrependNewlines(entity, doubledRunes, MarkupModeXEP0393)
+		// TODO: inline code support (non-standard too)
+		return markupBraces(entity, []rune("\n```"+preCode.Language+"\n"), codeRunes)
 	case client.TypeTextEntityTypeTextUrl:
 		textURL, _ := entity.Type.(*client.TextEntityTypeTextUrl)
 		// non-standard, Pidgin-specific
 		return markupBraces(entity, []rune{}, []rune(" <"+textURL.Url+">"))
 	}

-	return []*insertion{}
-}
-
-// transform the source text into a form with uniform runes and code points,
-// by duplicating anything beyond the Basic Multilingual Plane
-func textToDoubledRunes(text string) []rune {
-	doubledRunes := make([]rune, 0, len(text)*2)
-	for _, cp := range text {
-		if cp > bmpCeil {
-			doubledRunes = append(doubledRunes, cp, cp)
-		} else {
-			doubledRunes = append(doubledRunes, cp)
-		}
-	}
-
-	return doubledRunes
+	return nil, nil
 }

 // Format traverses an already sorted list of entities and wraps the text in a markup
 func Format(
 	sourceText string,
 	entities []*client.TextEntity,
-	markupMode MarkupModeType,
+	entityToMarkup func(*client.TextEntity) (*Insertion, *Insertion),
 ) string {
 	if len(entities) == 0 {
 		return sourceText
 	}

-	var entityToMarkup func(*client.TextEntity, []rune, MarkupModeType) []*insertion
-	if markupMode == MarkupModeXEP0393 {
-		entityToMarkup = entityToXEP0393
-	} else {
-		entityToMarkup = entityToMarkdown
-	}
-
-	doubledRunes := textToDoubledRunes(sourceText)
-
-	mergedEntities := SortEntities(ClaspDirectives(doubledRunes, MergeAdjacentEntities(SortEntities(entities))))
-
-	startStack := make(insertionStack, 0, len(sourceText))
-	endStack := make(insertionStack, 0, len(sourceText))
+	startStack := make(InsertionStack, 0, len(sourceText))
+	endStack := make(InsertionStack, 0, len(sourceText))

 	// convert entities to a stack of brackets
 	var maxEndOffset int32
-	for _, entity := range mergedEntities {
+	for _, entity := range entities {
 		log.Debugf("%#v", entity)
 		if entity.Length <= 0 {
 			continue
@ -369,70 +146,36 @@ func Format(

 		startStack, endStack = startStack.rebalance(endStack, entity.Offset)

-		insertions := entityToMarkup(entity, doubledRunes, markupMode)
-		if len(insertions) > 1 {
-			startStack = append(startStack, insertions[0:len(insertions)-1]...)
+		startInsertion, endInsertion := entityToMarkup(entity)
+		if startInsertion != nil {
+			startStack = append(startStack, startInsertion)
 		}
-		if len(insertions) > 0 {
-			endStack = append(endStack, insertions[len(insertions)-1])
+		if endInsertion != nil {
+			endStack = append(endStack, endInsertion)
 		}
 	}
 	// flush the closing brackets that still remain in endStack
 	startStack, endStack = startStack.rebalance(endStack, maxEndOffset)
-	// sort unpaired insertions
-	sort.SliceStable(startStack, func(i int, j int) bool {
-		ins1 := startStack[i]
-		ins2 := startStack[j]
-		if ins1.Type == insertionUnpaired && ins2.Type == insertionUnpaired {
-			return ins1.Offset < ins2.Offset
-		}
-		if ins1.Type == insertionUnpaired {
-			if ins1.Offset == ins2.Offset {
-				if ins2.Type == insertionOpening { // > **
-					return true
-				} else if ins2.Type == insertionClosing { // **>
-					return false
-				}
-			} else {
-				return ins1.Offset < ins2.Offset
-			}
-		}
-		if ins2.Type == insertionUnpaired {
-			if ins1.Offset == ins2.Offset {
-				if ins1.Type == insertionOpening { // > **
-					return false
-				} else if ins1.Type == insertionClosing { // **>
-					return true
-				}
-			} else {
-				return ins1.Offset < ins2.Offset
-			}
-		}
-		return false
-	})

 	// merge brackets into text
 	markupRunes := make([]rune, 0, len(sourceText))

 	nextInsertion := startStack.NewIterator()
 	insertion := nextInsertion()
-	var skipNext bool
+	var runeI int32

-	for i, cp := range doubledRunes {
-		if skipNext {
-			skipNext = false
-			continue
-		}
-
-		for insertion != nil && int(insertion.Offset) <= i {
+	for _, cp := range sourceText {
+		for insertion != nil && insertion.Offset <= runeI {
 			markupRunes = append(markupRunes, insertion.Runes...)
 			insertion = nextInsertion()
 		}

 		markupRunes = append(markupRunes, cp)
 		// skip two UTF-16 code units (not points actually!) if needed
-		if cp > bmpCeil {
-			skipNext = true
+		if cp > 0x0000ffff {
+			runeI += 2
+		} else {
+			runeI++
 		}
 	}
 	for insertion != nil {
--- a/telegram/formatter/formatter_test.go
+++ b/telegram/formatter/formatter_test.go
@ -7,7 +7,7 @@ import (
 )

 func TestNoFormatting(t *testing.T) {
-	markup := Format("abc\ndef", []*client.TextEntity{}, MarkupModeMarkdown)
+	markup := Format("abc\ndef", []*client.TextEntity{}, EntityToMarkdown)
 	if markup != "abc\ndef" {
 		t.Errorf("No formatting expected, but: %v", markup)
 	}
@ -20,7 +20,7 @@ func TestFormattingSimple(t *testing.T) {
 			Length: 4,
 			Type:   &client.TextEntityTypeBold{},
 		},
-	}, MarkupModeMarkdown)
+	}, EntityToMarkdown)
 	if markup != "👙**🐧🐖**" {
 		t.Errorf("Wrong simple formatting: %v", markup)
 	}
@ -40,7 +40,7 @@ func TestFormattingAdjacent(t *testing.T) {
 				Url: "https://narayana.im/",
 			},
 		},
-	}, MarkupModeMarkdown)
+	}, EntityToMarkdown)
 	if markup != "a👙_🐧_[🐖](https://narayana.im/)" {
 		t.Errorf("Wrong adjacent formatting: %v", markup)
 	}
@ -63,18 +63,18 @@ func TestFormattingAdjacentAndNested(t *testing.T) {
 			Length: 2,
 			Type:   &client.TextEntityTypeItalic{},
 		},
-	}, MarkupModeMarkdown)
-	if markup != "```\n**👙**🐧\n```_🐖_" {
+	}, EntityToMarkdown)
+	if markup != "\n```\n**👙**🐧\n```\n_🐖_" {
 		t.Errorf("Wrong adjacent&nested formatting: %v", markup)
 	}
 }

 func TestRebalanceTwoZero(t *testing.T) {
-	s1 := insertionStack{
-		&insertion{Offset: 7},
-		&insertion{Offset: 8},
+	s1 := InsertionStack{
+		&Insertion{Offset: 7},
+		&Insertion{Offset: 8},
 	}
-	s2 := insertionStack{}
+	s2 := InsertionStack{}
 	s1, s2 = s1.rebalance(s2, 7)
 	if !(len(s1) == 2 && len(s2) == 0 && s1[0].Offset == 7 && s1[1].Offset == 8) {
 		t.Errorf("Wrong rebalance 2–0: %#v %#v", s1, s2)
@ -82,13 +82,13 @@ func TestRebalanceTwoZero(t *testing.T) {
 }

 func TestRebalanceNeeded(t *testing.T) {
-	s1 := insertionStack{
-		&insertion{Offset: 7},
-		&insertion{Offset: 8},
+	s1 := InsertionStack{
+		&Insertion{Offset: 7},
+		&Insertion{Offset: 8},
 	}
-	s2 := insertionStack{
-		&insertion{Offset: 10},
-		&insertion{Offset: 9},
+	s2 := InsertionStack{
+		&Insertion{Offset: 10},
+		&Insertion{Offset: 9},
 	}
 	s1, s2 = s1.rebalance(s2, 9)
 	if !(len(s1) == 3 && len(s2) == 1 &&
@ -99,13 +99,13 @@ func TestRebalanceNeeded(t *testing.T) {
 }

 func TestRebalanceNotNeeded(t *testing.T) {
-	s1 := insertionStack{
-		&insertion{Offset: 7},
-		&insertion{Offset: 8},
+	s1 := InsertionStack{
+		&Insertion{Offset: 7},
+		&Insertion{Offset: 8},
 	}
-	s2 := insertionStack{
-		&insertion{Offset: 10},
-		&insertion{Offset: 9},
+	s2 := InsertionStack{
+		&Insertion{Offset: 10},
+		&Insertion{Offset: 9},
 	}
 	s1, s2 = s1.rebalance(s2, 8)
 	if !(len(s1) == 2 && len(s2) == 2 &&
@ -116,13 +116,13 @@ func TestRebalanceNotNeeded(t *testing.T) {
 }

 func TestRebalanceLate(t *testing.T) {
-	s1 := insertionStack{
-		&insertion{Offset: 7},
-		&insertion{Offset: 8},
+	s1 := InsertionStack{
+		&Insertion{Offset: 7},
+		&Insertion{Offset: 8},
 	}
-	s2 := insertionStack{
-		&insertion{Offset: 10},
-		&insertion{Offset: 9},
+	s2 := InsertionStack{
+		&Insertion{Offset: 10},
+		&Insertion{Offset: 9},
 	}
 	s1, s2 = s1.rebalance(s2, 10)
 	if !(len(s1) == 4 && len(s2) == 0 &&
@ -133,7 +133,7 @@ func TestRebalanceLate(t *testing.T) {
 }

 func TestIteratorEmpty(t *testing.T) {
-	s := insertionStack{}
+	s := InsertionStack{}
 	g := s.NewIterator()
 	v := g()
 	if v != nil {
@ -142,9 +142,9 @@ func TestIteratorEmpty(t *testing.T) {
 }

 func TestIterator(t *testing.T) {
-	s := insertionStack{
-		&insertion{Offset: 7},
-		&insertion{Offset: 8},
+	s := InsertionStack{
+		&Insertion{Offset: 7},
+		&Insertion{Offset: 8},
 	}
 	g := s.NewIterator()
 	v := g()
@ -206,377 +206,3 @@ func TestSortEmpty(t *testing.T) {
 		t.Errorf("Empty entities set sorting error: %#v", entities)
 	}
 }
-
-func TestNoFormattingXEP0393(t *testing.T) {
-	markup := Format("abc\ndef", []*client.TextEntity{}, MarkupModeXEP0393)
-	if markup != "abc\ndef" {
-		t.Errorf("No formatting expected, but: %v", markup)
-	}
-}
-
-func TestFormattingXEP0393Simple(t *testing.T) {
-	markup := Format("👙🐧🐖", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 2,
-			Length: 4,
-			Type:   &client.TextEntityTypeBold{},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "👙*🐧🐖*" {
-		t.Errorf("Wrong simple formatting: %v", markup)
-	}
-}
-
-func TestFormattingXEP0393Adjacent(t *testing.T) {
-	markup := Format("a👙🐧🐖", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 3,
-			Length: 2,
-			Type:   &client.TextEntityTypeItalic{},
-		},
-		&client.TextEntity{
-			Offset: 5,
-			Length: 2,
-			Type: &client.TextEntityTypeTextUrl{
-				Url: "https://narayana.im/",
-			},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "a👙_🐧_🐖 <https://narayana.im/>" {
-		t.Errorf("Wrong adjacent formatting: %v", markup)
-	}
-}
-
-func TestFormattingXEP0393AdjacentAndNested(t *testing.T) {
-	markup := Format("👙🐧🐖", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 0,
-			Length: 4,
-			Type:   &client.TextEntityTypePre{},
-		},
-		&client.TextEntity{
-			Offset: 0,
-			Length: 2,
-			Type:   &client.TextEntityTypeBold{},
-		},
-		&client.TextEntity{
-			Offset: 4,
-			Length: 2,
-			Type:   &client.TextEntityTypeItalic{},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "```\n*👙*🐧\n```_🐖_" {
-		t.Errorf("Wrong adjacent&nested formatting: %v", markup)
-	}
-}
-
-func TestFormattingXEP0393AdjacentItalicBoldItalic(t *testing.T) {
-	markup := Format("раса двуногих крысолюдей, которую так редко замечают, что многие отрицают само их существование", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 0,
-			Length: 26,
-			Type:   &client.TextEntityTypeItalic{},
-		},
-		&client.TextEntity{
-			Offset: 26,
-			Length: 69,
-			Type:   &client.TextEntityTypeBold{},
-		},
-		&client.TextEntity{
-			Offset: 26,
-			Length: 69,
-			Type:   &client.TextEntityTypeItalic{},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "_раса двуногих крысолюдей, *которую так редко замечают, что многие отрицают само их существование*_" {
-		t.Errorf("Wrong adjacent italic/bold-italic formatting: %v", markup)
-	}
-}
-
-func TestFormattingXEP0393MultipleAdjacent(t *testing.T) {
-	markup := Format("abcde", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 1,
-			Length: 1,
-			Type:   &client.TextEntityTypeBold{},
-		},
-		&client.TextEntity{
-			Offset: 2,
-			Length: 1,
-			Type:   &client.TextEntityTypeBold{},
-		},
-		&client.TextEntity{
-			Offset: 3,
-			Length: 1,
-			Type:   &client.TextEntityTypeBold{},
-		},
-		&client.TextEntity{
-			Offset: 4,
-			Length: 1,
-			Type:   &client.TextEntityTypeItalic{},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "a*bcd*_e_" {
-		t.Errorf("Wrong multiple adjacent formatting: %v", markup)
-	}
-}
-
-func TestFormattingXEP0393Intersecting(t *testing.T) {
-	markup := Format("abcde", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 1,
-			Length: 1,
-			Type:   &client.TextEntityTypeBold{},
-		},
-		&client.TextEntity{
-			Offset: 2,
-			Length: 3,
-			Type:   &client.TextEntityTypeItalic{},
-		},
-		&client.TextEntity{
-			Offset: 2,
-			Length: 1,
-			Type:   &client.TextEntityTypeBold{},
-		},
-		&client.TextEntity{
-			Offset: 3,
-			Length: 1,
-			Type:   &client.TextEntityTypeBold{},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "a*b*_*cd*e_" {
-		t.Errorf("Wrong intersecting formatting: %v", markup)
-	}
-}
-
-func TestFormattingXEP0393InlineCode(t *testing.T) {
-	markup := Format("Is Gajim a thing?\n\necho 'Hello'\necho 'world'\n\nhruck(", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 3,
-			Length: 5,
-			Type:   &client.TextEntityTypeCode{},
-		},
-		&client.TextEntity{
-			Offset: 19,
-			Length: 25,
-			Type:   &client.TextEntityTypePre{},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "Is `Gajim` a thing?\n\n```\necho 'Hello'\necho 'world'\n```\n\nhruck(" {
-		t.Errorf("Wrong intersecting formatting: %v", markup)
-	}
-}
-
-func TestFormattingMarkdownStrikethrough(t *testing.T) {
-	markup := Format("Everyone dislikes cake.", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 9,
-			Length: 3,
-			Type:   &client.TextEntityTypeStrikethrough{},
-		},
-	}, MarkupModeMarkdown)
-	if markup != "Everyone ~~dis~~likes cake." {
-		t.Errorf("Wrong strikethrough formatting: %v", markup)
-	}
-}
-
-func TestFormattingXEP0393Strikethrough(t *testing.T) {
-	markup := Format("Everyone dislikes cake.", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 9,
-			Length: 3,
-			Type:   &client.TextEntityTypeStrikethrough{},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "Everyone ~dis~likes cake." {
-		t.Errorf("Wrong strikethrough formatting: %v", markup)
-	}
-}
-
-func TestClaspLeft(t *testing.T) {
-	text := textToDoubledRunes("a b c")
-	entities := []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 1,
-			Length: 2,
-		},
-	}
-	entities = ClaspDirectives(text, entities)
-	if !(len(entities) == 1 &&
-		entities[0].Offset == 2 && entities[0].Length == 1) {
-		t.Errorf("Wrong claspleft: %#v", entities)
-	}
-}
-
-func TestClaspBoth(t *testing.T) {
-	text := textToDoubledRunes("a b c")
-	entities := []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 1,
-			Length: 3,
-		},
-	}
-	entities = ClaspDirectives(text, entities)
-	if !(len(entities) == 1 &&
-		entities[0].Offset == 2 && entities[0].Length == 1) {
-		t.Errorf("Wrong claspboth: %#v", entities)
-	}
-}
-
-func TestClaspNotNeeded(t *testing.T) {
-	text := textToDoubledRunes(" abc ")
-	entities := []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 1,
-			Length: 3,
-		},
-	}
-	entities = ClaspDirectives(text, entities)
-	if !(len(entities) == 1 &&
-		entities[0].Offset == 1 && entities[0].Length == 3) {
-		t.Errorf("Wrong claspnotneeded: %#v", entities)
-	}
-}
-
-func TestClaspNested(t *testing.T) {
-	text := textToDoubledRunes("a b c")
-	entities := []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 1,
-			Length: 3,
-		},
-		&client.TextEntity{
-			Offset: 2,
-			Length: 2,
-		},
-	}
-	entities = ClaspDirectives(text, entities)
-	if !(len(entities) == 2 &&
-		entities[0].Offset == 2 && entities[0].Length == 1 &&
-		entities[1].Offset == 2 && entities[1].Length == 1) {
-		t.Errorf("Wrong claspnested: %#v", entities)
-	}
-}
-
-func TestClaspEmoji(t *testing.T) {
-	text := textToDoubledRunes("a 🐖 c")
-	entities := []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 1,
-			Length: 4,
-		},
-	}
-	entities = ClaspDirectives(text, entities)
-	if !(len(entities) == 1 &&
-		entities[0].Offset == 2 && entities[0].Length == 2) {
-		t.Errorf("Wrong claspemoji: %#v", entities)
-	}
-}
-
-func TestNoNewlineBlockquoteXEP0393(t *testing.T) {
-	markup := Format("yes it can i think", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 4,
-			Length: 6,
-			Type:   &client.TextEntityTypeBlockQuote{},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "yes \n> it can\n i think" {
-		t.Errorf("Wrong blockquote formatting: %v", markup)
-	}
-}
-
-func TestNoNewlineBlockquoteMarkdown(t *testing.T) {
-	markup := Format("yes it can i think", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 4,
-			Length: 6,
-			Type:   &client.TextEntityTypeBlockQuote{},
-		},
-	}, MarkupModeMarkdown)
-	if markup != "yes \n> it can\n\n i think" {
-		t.Errorf("Wrong blockquote formatting: %v", markup)
-	}
-}
-
-func TestMultilineBlockquoteXEP0393(t *testing.T) {
-	markup := Format("hruck\npuck\n\nshuck\ntext", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 0,
-			Length: 17,
-			Type:   &client.TextEntityTypeBlockQuote{},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "> hruck\n> puck\n> \n> shuck\ntext" {
-		t.Errorf("Wrong blockquote formatting: %v", markup)
-	}
-}
-
-func TestMultilineBlockquoteMarkdown(t *testing.T) {
-	markup := Format("hruck\npuck\n\nshuck\ntext", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 0,
-			Length: 17,
-			Type:   &client.TextEntityTypeBlockQuote{},
-		},
-	}, MarkupModeMarkdown)
-	if markup != "> hruck\npuck\n\n> shuck\n\ntext" {
-		t.Errorf("Wrong blockquote formatting: %v", markup)
-	}
-}
-
-func TestMixedBlockquoteXEP0393(t *testing.T) {
-	markup := Format("hruck\npuck\nshuck\ntext", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 0,
-			Length: 16,
-			Type:   &client.TextEntityTypeBlockQuote{},
-		},
-		&client.TextEntity{
-			Offset: 0,
-			Length: 16,
-			Type:   &client.TextEntityTypeBold{},
-		},
-		&client.TextEntity{
-			Offset: 0,
-			Length: 10,
-			Type:   &client.TextEntityTypeItalic{},
-		},
-		&client.TextEntity{
-			Offset: 7,
-			Length: 2,
-			Type:   &client.TextEntityTypeStrikethrough{},
-		},
-	}, MarkupModeXEP0393)
-	if markup != "> *_hruck\n> p~uc~k_\n> shuck*\ntext" {
-		t.Errorf("Wrong blockquote formatting: %v", markup)
-	}
-}
-
-func TestMixedBlockquoteMarkdown(t *testing.T) {
-	markup := Format("hruck\npuck\nshuck\ntext", []*client.TextEntity{
-		&client.TextEntity{
-			Offset: 0,
-			Length: 16,
-			Type:   &client.TextEntityTypeBlockQuote{},
-		},
-		&client.TextEntity{
-			Offset: 0,
-			Length: 16,
-			Type:   &client.TextEntityTypeBold{},
-		},
-		&client.TextEntity{
-			Offset: 0,
-			Length: 10,
-			Type:   &client.TextEntityTypeItalic{},
-		},
-		&client.TextEntity{
-			Offset: 7,
-			Length: 2,
-			Type:   &client.TextEntityTypeStrikethrough{},
-		},
-	}, MarkupModeMarkdown)
-	if markup != "> **_hruck\np~~uc~~k_\nshuck**\n\ntext" {
-		t.Errorf("Wrong blockquote formatting: %v", markup)
-	}
-}
--- a/telegram/handlers.go
+++ b/telegram/handlers.go
@ -45,41 +45,6 @@ func (c *Client) getChatMessageLock(chatID int64) *sync.Mutex {
 	return lock
 }

-func (c *Client) cleanTempFile(path string) {
-	os.Remove(path)
-
-	dir := filepath.Dir(path)
-	dirName := filepath.Base(dir)
-	if strings.HasPrefix(dirName, "telegabber-") {
-		os.Remove(dir)
-	}
-}
-
-func (c *Client) sendMarker(chatId, messageId int64, typ gateway.MarkerType) {
-	xmppId, err := gateway.IdsDB.GetByTgIds(c.Session.Login, c.jid, chatId, messageId)
-	if err != nil {
-		xmppId = strconv.FormatInt(messageId, 10)
-	}
-
-	var stringType string
-	if typ == gateway.MarkerTypeReceived {
-		stringType = "received"
-	} else if typ == gateway.MarkerTypeDisplayed {
-		stringType = "displayed"
-	}
-	log.WithFields(log.Fields{
-		"xmppId": xmppId,
-	}).Debugf("marker: %s", stringType)
-
-	gateway.SendMessageMarker(
-		c.jid,
-		strconv.FormatInt(chatId, 10),
-		c.xmpp,
-		typ,
-		xmppId,
-	)
-}
-
 func (c *Client) updateHandler() {
 	listener := c.client.GetListener()
 	defer listener.Close()
@ -142,36 +107,19 @@ func (c *Client) updateHandler() {
 					uhOh()
 				}
 				c.updateDeleteMessages(typedUpdate)
+			case client.TypeUpdateFile:
+				typedUpdate, ok := update.(*client.UpdateFile)
+				if !ok {
+					uhOh()
+				}
+				c.updateFile(typedUpdate)
+				log.Debugf("%#v", typedUpdate.File)
 			case client.TypeUpdateAuthorizationState:
 				typedUpdate, ok := update.(*client.UpdateAuthorizationState)
 				if !ok {
 					uhOh()
 				}
 				c.updateAuthorizationState(typedUpdate)
-			case client.TypeUpdateMessageSendSucceeded:
-				typedUpdate, ok := update.(*client.UpdateMessageSendSucceeded)
-				if !ok {
-					uhOh()
-				}
-				c.updateMessageSendSucceeded(typedUpdate)
-			case client.TypeUpdateMessageSendFailed:
-				typedUpdate, ok := update.(*client.UpdateMessageSendFailed)
-				if !ok {
-					uhOh()
-				}
-				c.updateMessageSendFailed(typedUpdate)
-			case client.TypeUpdateChatTitle:
-				typedUpdate, ok := update.(*client.UpdateChatTitle)
-				if !ok {
-					uhOh()
-				}
-				c.updateChatTitle(typedUpdate)
-			case client.TypeUpdateChatReadOutbox:
-				typedUpdate, ok := update.(*client.UpdateChatReadOutbox)
-				if !ok {
-					uhOh()
-				}
-				c.updateChatReadOutbox(typedUpdate)
 			default:
 				// log only handled types
 				continue
@ -186,13 +134,13 @@ func (c *Client) updateHandler() {
 func (c *Client) updateUser(update *client.UpdateUser) {
 	c.cache.SetUser(update.User.Id, update.User)
 	show, status, presenceType := c.userStatusToText(update.User.Status, update.User.Id)
-	go c.ProcessStatusUpdate(update.User.Id, status, show, false, gateway.SPType(presenceType))
+	go c.ProcessStatusUpdate(update.User.Id, status, show, gateway.SPType(presenceType))
 }

 // user status changed
 func (c *Client) updateUserStatus(update *client.UpdateUserStatus) {
 	show, status, presenceType := c.userStatusToText(update.Status, update.UserId)
-	go c.ProcessStatusUpdate(update.UserId, status, show, false, gateway.SPImmed(false), gateway.SPType(presenceType))
+	go c.ProcessStatusUpdate(update.UserId, status, show, gateway.SPImmed(false), gateway.SPType(presenceType))
 }

 // new chat discovered
@ -206,14 +154,14 @@ func (c *Client) updateNewChat(update *client.UpdateNewChat) {
 			}
 		}

-		c.cache.SetChat(update.Chat.Id, update.Chat, true)
+		c.cache.SetChat(update.Chat.Id, update.Chat)

 		if update.Chat.Positions != nil && len(update.Chat.Positions) > 0 {
 			c.subscribeToID(update.Chat.Id, update.Chat)
 		}

 		if update.Chat.Id < 0 {
-			c.ProcessStatusUpdate(update.Chat.Id, update.Chat.Title, "chat", true)
+			c.ProcessStatusUpdate(update.Chat.Id, update.Chat.Title, "chat")
 		}
 	}()
 }
@ -234,34 +182,18 @@ func (c *Client) updateChatLastMessage(update *client.UpdateChatLastMessage) {

 // message received
 func (c *Client) updateNewMessage(update *client.UpdateNewMessage) {
+	go func() {
 		chatId := update.Message.ChatId
-	if c.Session.IsChatIgnored(chatId) {
-		return
-	}

 		// guarantee sequential message delivering per chat
 		lock := c.getChatMessageLock(chatId)
-	go func() {
 		lock.Lock()
 		defer lock.Unlock()

-		var forceCmd bool
-		if c.LastBotCmdString != "" && update.Message.IsOutgoing {
-			if update.Message.Content.MessageContentType() == client.TypeMessageText {
-				textMessage, _ := update.Message.Content.(*client.MessageText)
-
-				if textMessage.Text != nil && textMessage.Text.Text == c.LastBotCmdString {
-					forceCmd = true
-					c.LastBotCmdString = ""
-				}
-			}
-		}
-
 		// ignore self outgoing messages
 		if update.Message.IsOutgoing &&
 			update.Message.SendingState != nil &&
-			update.Message.SendingState.MessageSendingStateType() == client.TypeMessageSendingStatePending &&
-			!forceCmd {
+			update.Message.SendingState.MessageSendingStateType() == client.TypeMessageSendingStatePending {
 			return
 		}

@ -269,160 +201,98 @@ func (c *Client) updateNewMessage(update *client.UpdateNewMessage) {
 			"chat_id": chatId,
 		}).Warn("New message from chat")

-		c.ProcessIncomingMessage(chatId, update.Message)
+		var text string
+		content := update.Message.Content
+		if content != nil && content.MessageContentType() == client.TypeMessageChatChangePhoto {
+			chat, err := c.client.GetChat(&client.GetChatRequest{
+				ChatId: chatId,
+			})
+			if err == nil {
+				c.cache.SetChat(chatId, chat)
+				go c.ProcessStatusUpdate(chatId, "", "", gateway.SPImmed(true))
+				text = "<Chat photo has changed>"
+			}
+		} else {
+			text = c.messageToText(update.Message, false)
+			file, filename := c.contentToFilename(content)
+
+			// download file(s)
+			if file != nil && !file.Local.IsDownloadingCompleted {
+				newFile, err := c.DownloadFile(file.Id, 1, true)
+				if err == nil {
+					file = newFile
+				}
+			}
+			// OTR support (I do not know why would you need it, seriously)
+			if !(strings.HasPrefix(text, "?OTR") || c.Session.RawMessages) {
+				var prefix strings.Builder
+				prefix.WriteString(c.messageToPrefix(update.Message, c.formatContent(file, filename)))
+				if text != "" {
+					// \n if it is groupchat and message is not empty
+					if chatId < 0 {
+						prefix.WriteString("\n")
+					} else if chatId > 0 {
+						prefix.WriteString(" | ")
+					}
+
+					prefix.WriteString(text)
+				}
+
+				text = prefix.String()
+			}
+		}
+
+		// mark message as read
+		c.client.ViewMessages(&client.ViewMessagesRequest{
+			ChatId:     chatId,
+			MessageIds: []int64{update.Message.Id},
+			ForceRead:  true,
+		})
+		// forward message to XMPP
+		gateway.SendMessage(c.jid, strconv.FormatInt(chatId, 10), text, c.xmpp)
 	}()
 }

 // message content updated
 func (c *Client) updateMessageContent(update *client.UpdateMessageContent) {
-	if c.Session.IsChatIgnored(update.ChatId) {
-		return
-	}
-
-	markupFunction := c.getFormatter()
-
-	log.Debugf("newContent: %#v", update.NewContent)
-
-	lock := c.getChatMessageLock(update.ChatId)
-	lock.Lock()
-	lock.Unlock()
-	c.SendMessageLock.Lock()
-	c.SendMessageLock.Unlock()
-
-	xmppId, xmppIdErr := gateway.IdsDB.GetByTgIds(c.Session.Login, c.jid, update.ChatId, update.MessageId)
-	var ignoredResource string
-	if xmppIdErr == nil {
-		ignoredResource = c.popFromEditOutbox(xmppId)
-	} else {
-		log.Infof("Couldn't retrieve XMPP message ids for %v, an echo may happen", update.MessageId)
-	}
-	log.Infof("ignoredResource: %v", ignoredResource)
-
-	jids := c.getCarbonFullJids(true, ignoredResource)
-	if len(jids) == 0 {
-		log.Info("The only resource is ignored, aborting")
-		return
-	}
-
+	markupFunction := formatter.EntityToXEP0393
 	if update.NewContent.MessageContentType() == client.TypeMessageText {
 		textContent := update.NewContent.(*client.MessageText)
-		log.Debugf("textContent: %#v", textContent.Text)
-
-		var replaceId string
-		sId := strconv.FormatInt(update.MessageId, 10)
-		var isCarbon bool
-
-		go func() {
-			message, messageErr := c.client.GetMessage(&client.GetMessageRequest{
-				ChatId:    update.ChatId,
-				MessageId: update.MessageId,
-			})
-			if messageErr != nil {
-				// odnako za vremya puti
-				// sobaka mogla podrasti
-				c.MessageIdChangesLock.Lock()
-				idsMap, idsMapOk := c.MessageIdChanges[update.ChatId]
-				hadNoId := false
-				if idsMapOk {
-					newId, newIdOk := idsMap[update.MessageId]
-					if newIdOk {
-						if newId.Id == 0 {
-							hadNoId = true
-							c.MessageIdChangesLock.Unlock()
-							newId.Lock()
-						}
-						log.Infof("falling back to updated message id: %v/%v->%v", update.ChatId, update.MessageId, newId.Id)
-						message, messageErr = c.client.GetMessage(&client.GetMessageRequest{
-							ChatId:    update.ChatId,
-							MessageId: newId.Id,
-						})
-					}
-				}
-				if !hadNoId {
-					c.MessageIdChangesLock.Unlock()
-				}
-			}
-			var prefix string
-			if messageErr == nil {
-				if message.EditDate == 0 {
-					return
-				}
-				log.Debugf("editDate: %v", message.EditDate)
-
-				isCarbon = c.isCarbonsEnabled() && message.IsOutgoing
-				// reply correction support in clients is suboptimal yet, so cut them out for now
-				prefix, _ = c.messageToPrefix(message, "", "", true)
-			} else {
-				log.Errorf("No message %v/%v found, cannot reliably determine if it is a carbon and if it is edited: %v", update.ChatId, update.MessageId, messageErr.Error())
-			}
-
-			// use XEP-0308 edits only if the last message is edited for sure, fallback otherwise
-			if c.Session.NativeEdits {
-				lastXmppId, ok := c.getLastChatMessageId(update.ChatId)
-				if xmppIdErr != nil {
-					xmppId = sId
-				}
-				if ok && lastXmppId == xmppId {
-					replaceId = xmppId
-				} else {
-					log.Infof("Mismatching message ids: %v %v, falling back to separate edit message", lastXmppId, xmppId)
-				}
-			}
-
-			var text strings.Builder
-
-			if replaceId == "" {
-				var editChar string
-				if c.Session.AsciiArrows {
-					editChar = "e"
-				} else {
-					editChar = "✎"
-				}
-				text.WriteString(fmt.Sprintf("%s %v | ", editChar, update.MessageId))
-			} else if prefix != "" {
-				text.WriteString(prefix)
-				text.WriteString(c.getPrefixSeparator(update.ChatId))
-			}
-
-			text.WriteString(formatter.Format(
+		text := fmt.Sprintf("✎ %v | %s", update.MessageId, formatter.Format(
 			textContent.Text.Text,
-				textContent.Text.Entities,
+			formatter.SortEntities(textContent.Text.Entities),
 			markupFunction,
 		))
-
-			sChatId := strconv.FormatInt(update.ChatId, 10)
-			for _, jid := range jids {
-				gateway.SendMessage(jid, sChatId, text.String(), "e"+sId, c.xmpp, nil, replaceId, isCarbon, false)
-			}
-		}()
+		gateway.SendMessage(c.jid, strconv.FormatInt(update.ChatId, 10), text, c.xmpp)
 	}
 }

 // message(s) deleted
 func (c *Client) updateDeleteMessages(update *client.UpdateDeleteMessages) {
 	if update.IsPermanent {
-		for _, deleteId := range update.MessageIds {
-			c.tryUnlockMessageId(update.ChatId, deleteId)
-		}
-
-		if c.Session.IsChatIgnored(update.ChatId) {
-			return
-		}
-		if c.Session.IgnoreGroupDeletions {
-			chatType, chatTypeErr := c.GetChatType(update.ChatId, false)
-			if chatTypeErr == nil && (chatType == ChatTypeBasicGroup || chatType == ChatTypeSupergroup) {
-				return
+		text := "✗ " + strings.Join(int64SliceToStringSlice(update.MessageIds), ",")
+		gateway.SendMessage(c.jid, strconv.FormatInt(update.ChatId, 10), text, c.xmpp)
 	}
 }

-		var deleteChar string
-		if c.Session.AsciiArrows {
-			deleteChar = "X "
+// file downloaded
+func (c *Client) updateFile(update *client.UpdateFile) {
+	// not really
+	if !update.File.Local.IsDownloadingCompleted {
+		return
+	}
+
+	err := os.Symlink(
+		update.File.Local.Path,
+		c.formatFilePath(c.content.Path, update.File.Remote.UniqueId, filepath.Ext(update.File.Local.Path)),
+	)
+	if err != nil {
+		linkErr := err.(*os.LinkError)
+		if linkErr.Err.Error() == "file exists" {
+			log.Warn(err.Error())
 		} else {
-			deleteChar = "✗ "
+			log.Errorf("Error creating symlink: %v", err)
 		}
-		text := deleteChar + strings.Join(int64SliceToStringSlice(update.MessageIds), ",")
-		gateway.SendTextMessage(c.jid, strconv.FormatInt(update.ChatId, 10), text, c.xmpp)
 	}
 }

@ -435,74 +305,3 @@ func (c *Client) updateAuthorizationState(update *client.UpdateAuthorizationStat
 		c.forceClose()
 	}
 }
-
-func (c *Client) updateMessageSendSucceeded(update *client.UpdateMessageSendSucceeded) {
-	// replace message ID in local database
-	log.Debugf("replace message %v with %v", update.OldMessageId, update.Message.Id)
-	if err := gateway.IdsDB.ReplaceTgId(c.Session.Login, c.jid, update.Message.ChatId, update.OldMessageId, update.Message.Id); err != nil {
-		log.Errorf("failed to replace %v with %v: %v", update.OldMessageId, update.Message.Id, err.Error())
-	}
-
-	c.MessageIdChangesLock.Lock()
-	idsMap, ok := c.MessageIdChanges[update.Message.ChatId]
-	if !ok {
-		idsMap = make(map[int64]*newId)
-		c.MessageIdChanges[update.Message.ChatId] = idsMap
-	}
-	id, ok := idsMap[update.OldMessageId]
-	if !ok {
-		id = newNewId()
-		idsMap[update.OldMessageId] = id
-	}
-	id.Id = update.Message.Id
-	c.MessageIdChangesLock.Unlock()
-
-	c.sendMarker(update.Message.ChatId, update.Message.Id, gateway.MarkerTypeReceived)
-
-	// clean uploaded files
-	file, _ := c.contentToFile(update.Message.Content)
-	if file != nil && file.Local != nil {
-		c.cleanTempFile(file.Local.Path)
-	}
-}
-func (c *Client) updateMessageSendFailed(update *client.UpdateMessageSendFailed) {
-	c.tryUnlockMessageId(update.Message.ChatId, update.OldMessageId)
-
-	// clean uploaded files
-	file, _ := c.contentToFile(update.Message.Content)
-	if file != nil && file.Local != nil {
-		c.cleanTempFile(file.Local.Path)
-	}
-}
-
-// chat title changed
-func (c *Client) updateChatTitle(update *client.UpdateChatTitle) {
-	gateway.SetNickname(c.jid, strconv.FormatInt(update.ChatId, 10), update.Title, c.xmpp)
-
-	// set also the status (for group chats only)
-	chat, user, _ := c.GetContactByID(update.ChatId, nil, false)
-	if user == nil {
-		c.ProcessStatusUpdate(update.ChatId, update.Title, "chat", false, gateway.SPImmed(true))
-	}
-
-	// update chat title in the cache
-	if chat != nil {
-		chat.Title = update.Title
-	}
-}
-
-func (c *Client) updateChatReadOutbox(update *client.UpdateChatReadOutbox) {
-	c.sendMarker(update.ChatId, update.LastReadOutboxMessageId, gateway.MarkerTypeDisplayed)
-}
-
-func (c *Client) tryUnlockMessageId(chatId, messageId int64) {
-	c.MessageIdChangesLock.Lock()
-	idsMap, ok := c.MessageIdChanges[chatId]
-	if ok {
-		id, ok := idsMap[messageId]
-		if ok {
-			id.Unlock()
-		}
-	}
-	c.MessageIdChangesLock.Unlock()
-}
--- a/telegram/loginwizard.go
+++ b/telegram/loginwizard.go
@ -1,82 +0,0 @@
-package telegram
-
-import (
-	"dev.narayana.im/narayana/telegabber/xmpp/gateway"
-
-	log "github.com/sirupsen/logrus"
-	"github.com/zelenin/go-tdlib/client"
-)
-
-// StartLoginWizard initiates a loginWizard object
-func (c *Client) StartLoginWizard(inCommand bool) {
-	if c.loginWizard == nil {
-		c.loginWizard = &loginWizardMetadata{
-			nextStage:   make(chan string, 1),
-			commandSent: inCommand,
-		}
-	} else {
-		c.loginWizard.commandSent = inCommand
-	}
-}
-
-// StopLoginWizard safely destroys the loginWizard object
-func (c *Client) StopLoginWizard() {
-	c.locks.loginWizardReadLock.Lock()
-	c.locks.loginWizardWriteLock.Lock()
-	if c.loginWizard != nil {
-		close(c.loginWizard.nextStage)
-		c.loginWizard = nil
-	}
-	c.locks.loginWizardReadLock.Unlock()
-	c.locks.loginWizardWriteLock.Unlock()
-}
-
-// GetLoginWizardNextStage waits for the next stage from the channel
-func (c *Client) GetLoginWizardNextStage() string {
-	c.locks.loginWizardReadLock.Lock()
-	defer c.locks.loginWizardReadLock.Unlock()
-
-	if c.loginWizard != nil {
-		if c.loginWizard.commandSent {
-			log.Debugf("waiting for nextStage...")
-			nextStage := <-c.loginWizard.nextStage
-			c.loginWizard.commandSent = false
-			c.loginWizard.chanBusy = false
-			log.Debugf("yielded stage %v", nextStage)
-			return nextStage
-		} else {
-			if c.lastAuthorizationStateType == client.TypeAuthorizationStateWaitPhoneNumber ||
-				c.lastAuthorizationStateType == client.TypeAuthorizationStateClosing ||
-				c.Session.Login == "" {
-				return "login"
-			}
-			switch c.lastAuthorizationStateType {
-			case client.TypeAuthorizationStateWaitCode:
-				return "code"
-			case client.TypeAuthorizationStateWaitPassword:
-				return "password"
-			}
-		}
-	}
-
-	return ""
-}
-
-func (c *Client) wizardStageOrPrompt(stage, message string) {
-	c.locks.loginWizardWriteLock.Lock()
-	if c.loginWizard == nil {
-		c.locks.loginWizardWriteLock.Unlock()
-		if message != "" {
-			gateway.SendServiceMessage(c.jid, message, c.xmpp)
-		}
-	} else {
-		if !c.loginWizard.chanBusy {
-			log.Debugf("writing wizard stage %v", stage)
-			c.loginWizard.nextStage <- stage
-		} else {
-			log.Warn("Skipping stage %v, wizard cannot keep up", stage)
-		}
-		c.loginWizard.chanBusy = true
-		c.locks.loginWizardWriteLock.Unlock()
-	}
-}
--- a/telegram/utils.go
+++ b/telegram/utils.go
--- a/telegram/utils_test.go
+++ b/telegram/utils_test.go
@ -30,7 +30,7 @@ func TestOnlineRecently(t *testing.T) {
 }

 func TestOnlineOfflineAway(t *testing.T) {
-	location := time.FixedZone("UTC+1", 3600)
+	location, _ := time.LoadLocation("Europe/Berlin")
 	timestamp := time.Now().In(location).Unix() - 3599
 	tm := time.Unix(timestamp, 0).In(location)
 	c := &Client{
@ -130,7 +130,7 @@ func TestFormatMessageMultilinePreview(t *testing.T) {
 	}
 }

-func TestFormatFile(t *testing.T) {
+func TestFormatContent(t *testing.T) {
 	file := client.File{
 		Size: 23899,
 		Local: &client.LocalFile{
@ -146,38 +146,10 @@ func TestFormatFile(t *testing.T) {
 		},
 	}

-	content, link := c.formatFile(&file, false)
-	if content != ". (23 kbytes) | " {
+	content := c.formatContent(&file, "a.jpg")
+	if content != "a.jpg (23 kbytes) | localhvost/b0896d9e9f1de7d2af59b080c3f0947b838c5c6c64f71c68a4b690a15de2ccf8.jpg" {
 		t.Errorf("Wrong file label: %v", content)
 	}
-	if link != "" {
-		t.Errorf("Wrong file link: %v", link)
-	}
-}
-
-func TestFormatPreview(t *testing.T) {
-	file := client.File{
-		Size: 23899,
-		Local: &client.LocalFile{
-			Path: "c:/pron/smokovnica_vhsrip.mov",
-		},
-		Remote: &client.RemoteFile{
-			UniqueId: "aZaZaZ",
-		},
-	}
-	c := Client{
-		content: &config.TelegramContentConfig{
-			Link: "localhvost",
-		},
-	}
-
-	content, link := c.formatFile(&file, true)
-	if content != "" {
-		t.Errorf("Wrong preview label: %v", content)
-	}
-	if link != "" {
-		t.Errorf("Wrong preview link: %v", link)
-	}
 }

 func TestMessageToTextSticker(t *testing.T) {
@ -369,53 +341,6 @@ func TestMessageAnimation(t *testing.T) {
 	}
 }

-func TestMessageTtl1(t *testing.T) {
-	ttl := client.Message{
-		Content: &client.MessageChatSetMessageAutoDeleteTime{},
-	}
-	text := (&Client{}).messageToText(&ttl, false)
-	if text != "The self-destruct timer was disabled" {
-		t.Errorf("Wrong anonymous off ttl label: %v", text)
-	}
-}
-
-func TestMessageTtl2(t *testing.T) {
-	ttl := client.Message{
-		Content: &client.MessageChatSetMessageAutoDeleteTime{
-			MessageAutoDeleteTime: 3,
-		},
-	}
-	text := (&Client{}).messageToText(&ttl, false)
-	if text != "The self-destruct timer was set to 3 seconds" {
-		t.Errorf("Wrong anonymous ttl label: %v", text)
-	}
-}
-
-func TestMessageTtl3(t *testing.T) {
-	ttl := client.Message{
-		Content: &client.MessageChatSetMessageAutoDeleteTime{
-			FromUserId: 3,
-		},
-	}
-	text := (&Client{}).messageToText(&ttl, false)
-	if text != "unknown contact: TDlib instance is offline disabled the self-destruct timer" {
-		t.Errorf("Wrong off ttl label: %v", text)
-	}
-}
-
-func TestMessageTtl4(t *testing.T) {
-	ttl := client.Message{
-		Content: &client.MessageChatSetMessageAutoDeleteTime{
-			FromUserId:            3,
-			MessageAutoDeleteTime: 3,
-		},
-	}
-	text := (&Client{}).messageToText(&ttl, false)
-	if text != "unknown contact: TDlib instance is offline set the self-destruct timer to 3 seconds" {
-		t.Errorf("Wrong ttl label: %v", text)
-	}
-}
-
 func TestMessageUnknown(t *testing.T) {
 	unknown := client.Message{
 		Content: &client.MessageExpiredPhoto{},
@ -426,59 +351,184 @@ func TestMessageUnknown(t *testing.T) {
 	}
 }

+func TestContentToFilenameSticker(t *testing.T) {
+	sticker := client.MessageSticker{
+		Sticker: &client.Sticker{},
+	}
+	_, filename := (&Client{}).contentToFilename(&sticker)
+	if filename != "sticker.webp" {
+		t.Errorf("Wrong sticker filename")
+	}
+}
+
+func TestContentToFilenameVoice(t *testing.T) {
+	voice := client.MessageVoiceNote{
+		VoiceNote: &client.VoiceNote{
+			Duration: 56,
+		},
+	}
+	_, filename := (&Client{}).contentToFilename(&voice)
+	if filename != "voice note (56 s.).oga" {
+		t.Errorf("Wrong voice note filename")
+	}
+}
+
+func TestContentToFilenameVideoNote(t *testing.T) {
+	video := client.MessageVideoNote{
+		VideoNote: &client.VideoNote{
+			Duration: 56,
+		},
+	}
+	_, filename := (&Client{}).contentToFilename(&video)
+	if filename != "video note (56 s.).mp4" {
+		t.Errorf("Wrong video note filename")
+	}
+}
+
+func TestContentToFilenameAnimation(t *testing.T) {
+	animation := client.MessageAnimation{
+		Animation: &client.Animation{},
+	}
+	_, filename := (&Client{}).contentToFilename(&animation)
+	if filename != "animation.mp4" {
+		t.Errorf("Wrong animation filename")
+	}
+}
+
+func TestContentToFilenamePhoto(t *testing.T) {
+	photo := client.MessagePhoto{
+		Photo: &client.Photo{
+			Sizes: []*client.PhotoSize{
+				&client.PhotoSize{
+					Photo: &client.File{},
+				},
+				&client.PhotoSize{
+					Photo: &client.File{
+						Id: 56,
+					},
+				},
+			},
+		},
+	}
+	_, filename := (&Client{}).contentToFilename(&photo)
+	if filename != "56.jpg" {
+		t.Errorf("Wrong photo filename")
+	}
+}
+
+func TestContentToFilenamePhotoNoSizes(t *testing.T) {
+	photo := client.MessagePhoto{
+		Photo: &client.Photo{
+			Sizes: []*client.PhotoSize{},
+		},
+	}
+	_, filename := (&Client{}).contentToFilename(&photo)
+	if filename != "" {
+		t.Errorf("Wrong filename of sizeless photo")
+	}
+}
+
+func TestContentToFilenameAudio(t *testing.T) {
+	audio := client.MessageAudio{
+		Audio: &client.Audio{
+			FileName: "swine.mp3",
+			Audio: &client.File{
+				Local: &client.LocalFile{
+					Path: "C:/WINNT/swine.mp3",
+				},
+			},
+		},
+	}
+	_, filename := (&Client{}).contentToFilename(&audio)
+	if filename != "swine.mp3" {
+		t.Errorf("Not oinking, shame on you!")
+	}
+}
+
+func TestContentToFilenameVideo(t *testing.T) {
+	video := client.MessageVideo{
+		Video: &client.Video{
+			FileName: "swine.3gp",
+			Video: &client.File{
+				Local: &client.LocalFile{
+					Path: "C:/Document and Settings/Svinarchuk-PC/swine.3gp",
+				},
+			},
+		},
+	}
+	_, filename := (&Client{}).contentToFilename(&video)
+	if filename != "swine.3gp" {
+		t.Errorf("Not pigdancing, shame on you!")
+	}
+}
+
+func TestContentToFilenameDocument(t *testing.T) {
+	document := client.MessageDocument{
+		Document: &client.Document{
+			FileName: "swine.doc",
+			Document: &client.File{
+				Local: &client.LocalFile{
+					Path: "D:/My Documents/swine.doc",
+				},
+			},
+		},
+	}
+	_, filename := (&Client{}).contentToFilename(&document)
+	if filename != "swine.doc" {
+		t.Errorf("Not hoofstomping, shame on you!")
+	}
+}
+
+func TestContentToFilenameUnknown(t *testing.T) {
+	unknown := client.MessageExpiredPhoto{}
+	_, filename := (&Client{}).contentToFilename(&unknown)
+	if filename != "" {
+		t.Errorf("Wrong filename of unknown content")
+	}
+}
+
 func TestMessageToPrefix1(t *testing.T) {
 	message := client.Message{
 		Id:         42,
 		IsOutgoing: true,
 		ForwardInfo: &client.MessageForwardInfo{
-			Origin: &client.MessageOriginHiddenUser{
+			Origin: &client.MessageForwardOriginHiddenUser{
 				SenderName: "ziz",
 			},
 		},
 	}
-	prefix, gatewayReply := (&Client{Session: &persistence.Session{}}).messageToPrefix(&message, "", "", false)
+	prefix := (&Client{}).messageToPrefix(&message, "")
 	if prefix != "➡ 42 | fwd: ziz" {
 		t.Errorf("Wrong prefix: %v", prefix)
 	}
-	if gatewayReply != nil {
-		t.Errorf("Reply is not nil: %v", gatewayReply)
-	}
 }

 func TestMessageToPrefix2(t *testing.T) {
 	message := client.Message{
 		Id: 56,
 		ForwardInfo: &client.MessageForwardInfo{
-			Origin: &client.MessageOriginChannel{
+			Origin: &client.MessageForwardOriginChannel{
 				AuthorSignature: "zaz",
 			},
 		},
 	}
-	prefix, gatewayReply := (&Client{Session: &persistence.Session{}}).messageToPrefix(&message, "y.jpg", "", false)
-	if prefix != "⬅ 56 | fwd:  (zaz) | preview: y.jpg" {
+	prefix := (&Client{}).messageToPrefix(&message, "")
+	if prefix != "⬅ 56 | fwd:  (zaz)" {
 		t.Errorf("Wrong prefix: %v", prefix)
 	}
-	if gatewayReply != nil {
-		t.Errorf("Reply is not nil: %v", gatewayReply)
-	}
 }

 func TestMessageToPrefix3(t *testing.T) {
 	message := client.Message{
 		Id: 56,
 		ForwardInfo: &client.MessageForwardInfo{
-			Origin: &client.MessageOriginChannel{
-				AuthorSignature: "zuz",
-			},
+			Origin: &client.MessageForwardOriginChannel{},
 		},
 	}
-	prefix, gatewayReply := (&Client{Session: &persistence.Session{AsciiArrows: true}}).messageToPrefix(&message, "", "a.jpg", false)
-	if prefix != "< 56 | fwd:  (zuz) | file: a.jpg" {
+	prefix := (&Client{}).messageToPrefix(&message, "a.jpg")
+	if prefix != "⬅ 56 | fwd:  | file: a.jpg" {
 		t.Errorf("Wrong prefix: %v", prefix)
 	}
-	if gatewayReply != nil {
-		t.Errorf("Reply is not nil: %v", gatewayReply)
-	}
 }

 func TestMessageToPrefix4(t *testing.T) {
@ -486,139 +536,8 @@ func TestMessageToPrefix4(t *testing.T) {
 		Id:         23,
 		IsOutgoing: true,
 	}
-	prefix, gatewayReply := (&Client{Session: &persistence.Session{AsciiArrows: true}}).messageToPrefix(&message, "", "", false)
-	if prefix != "> 23" {
+	prefix := (&Client{}).messageToPrefix(&message, "")
+	if prefix != "➡ 23" {
 		t.Errorf("Wrong prefix: %v", prefix)
 	}
-	if gatewayReply != nil {
-		t.Errorf("Reply is not nil: %v", gatewayReply)
-	}
-}
-
-func TestMessageToPrefix5(t *testing.T) {
-	message := client.Message{
-		Id: 560,
-		ForwardInfo: &client.MessageForwardInfo{
-			Origin: &client.MessageOriginChat{
-				AuthorSignature: "zyz",
-			},
-		},
-	}
-	prefix, gatewayReply := (&Client{Session: &persistence.Session{AsciiArrows: true}}).messageToPrefix(&message, "h.jpg", "a.jpg", false)
-	if prefix != "< 560 | fwd:  (zyz) | preview: h.jpg | file: a.jpg" {
-		t.Errorf("Wrong prefix: %v", prefix)
-	}
-	if gatewayReply != nil {
-		t.Errorf("Reply is not nil: %v", gatewayReply)
-	}
-}
-
-func TestMessageToPrefix6(t *testing.T) {
-	message := client.Message{
-		Id:         23,
-		ChatId:     25,
-		IsOutgoing: true,
-		ReplyTo: &client.MessageReplyToMessage{
-			ChatId: 41,
-			Quote: &client.TextQuote{
-				Text: &client.FormattedText{
-					Text: "tist\nuz\niz",
-				},
-			},
-			Origin: &client.MessageOriginHiddenUser{
-				SenderName: "ziz",
-			},
-		},
-	}
-	prefix, gatewayReply := (&Client{Session: &persistence.Session{AsciiArrows: true}}).messageToPrefix(&message, "", "", false)
-	if prefix != "> 23 | reply: ziz @ unknown contact: TDlib instance is offline | tist uz iz" {
-		t.Errorf("Wrong prefix: %v", prefix)
-	}
-	if gatewayReply != nil {
-		t.Errorf("Reply is not nil: %v", gatewayReply)
-	}
-}
-
-func TestMessageToPrefix7(t *testing.T) {
-	message := client.Message{
-		Id:         23,
-		ChatId:     42,
-		IsOutgoing: true,
-		ReplyTo: &client.MessageReplyToMessage{
-			ChatId: 41,
-			Content: &client.MessageText{
-				Text: &client.FormattedText{
-					Text: "tist",
-				},
-			},
-			Origin: &client.MessageOriginChannel{
-				AuthorSignature: "zaz",
-			},
-		},
-	}
-	prefix, gatewayReply := (&Client{Session: &persistence.Session{AsciiArrows: true}}).messageToPrefix(&message, "", "", false)
-	if prefix != "> 23 | reply:  (zaz) @ unknown contact: TDlib instance is offline | tist" {
-		t.Errorf("Wrong prefix: %v", prefix)
-	}
-	if gatewayReply != nil {
-		t.Errorf("Reply is not nil: %v", gatewayReply)
-	}
-}
-
-func TestMessageToPrefix8(t *testing.T) {
-	message := client.Message{
-		Id:         23,
-		ChatId:     42,
-		IsOutgoing: true,
-		ReplyTo: &client.MessageReplyToMessage{
-			ChatId: 41,
-			Content: &client.MessageText{
-				Text: &client.FormattedText{
-					Text: "tist",
-				},
-			},
-			Origin: &client.MessageOriginChannel{
-				AuthorSignature: "zuz",
-			},
-		},
-	}
-	prefix, gatewayReply := (&Client{Session: &persistence.Session{AsciiArrows: true}}).messageToPrefix(&message, "", "", true)
-	if prefix != "> 23" {
-		t.Errorf("Wrong prefix: %v", prefix)
-	}
-	if gatewayReply != nil {
-		t.Errorf("Reply is not nil: %v", gatewayReply)
-	}
-}
-
-func GetSenderIdEmpty(t *testing.T) {
-	message := client.Message{}
-	senderId := (&Client{}).getMessageSenderId(&message)
-	if senderId != 0 {
-		t.Errorf("Wrong sender id: %v", senderId)
-	}
-}
-
-func GetSenderIdUser(t *testing.T) {
-	message := client.Message{
-		SenderId: &client.MessageSenderUser{
-			UserId: 42,
-		},
-	}
-	senderId := (&Client{}).getMessageSenderId(&message)
-	if senderId != 42 {
-		t.Errorf("Wrong sender id: %v", senderId)
-	}
-}
-
-func GetSenderIdChat(t *testing.T) {
-	message := client.Message{
-		SenderId: &client.MessageSenderChat{
-			ChatId: -42,
-		},
-	}
-	senderId := (&Client{}).getMessageSenderId(&message)
-	if senderId != -42 {
-		t.Errorf("Wrong sender id: %v", senderId)
-	}
 }
--- a/xmpp/component.go
+++ b/xmpp/component.go
@ -2,12 +2,9 @@ package xmpp

 import (
 	"github.com/pkg/errors"
-	"regexp"
-	"strconv"
 	"sync"
 	"time"

-	"dev.narayana.im/narayana/telegabber/badger"
 	"dev.narayana.im/narayana/telegabber/config"
 	"dev.narayana.im/narayana/telegabber/persistence"
 	"dev.narayana.im/narayana/telegabber/telegram"
@ -23,49 +20,18 @@ var sessions map[string]*telegram.Client
 var db *persistence.SessionsYamlDB
 var sessionLock sync.Mutex

-const (
-	B  uint64 = 1
-	KB        = B << 10
-	MB        = KB << 10
-	GB        = MB << 10
-	TB        = GB << 10
-	PB        = TB << 10
-	EB        = PB << 10
-
-	maxUint64 uint64 = (1 << 64) - 1
-)
-
-var sizeRegex = regexp.MustCompile("\\A([0-9]+) ?([KMGTPE]?B?)\\z")
-
 // NewComponent starts a new component and wraps it in
 // a stream manager that you should start yourself
-func NewComponent(conf config.XMPPConfig, tc config.TelegramConfig, idsPath string, version string) (*xmpp.StreamManager, *xmpp.Component, error) {
+func NewComponent(conf config.XMPPConfig, tc config.TelegramConfig) (*xmpp.StreamManager, *xmpp.Component, error) {
 	var err error

 	gateway.Jid, err = stanza.NewJid(conf.Jid)
-	gateway.Version = version
 	if err != nil {
 		return nil, nil, err
 	}
-	if gateway.Jid.Resource == "" {
-		if tc.Tdlib.Client.DeviceModel != "" {
-			gateway.Jid.Resource = tc.Tdlib.Client.DeviceModel
-		} else {
-			gateway.Jid.Resource = "telegabber"
-		}
-	}
-
-	gateway.IdsDB = badger.IdsDBOpen(idsPath)

 	tgConf = tc

-	if tc.Content.Quota != "" {
-		gateway.StorageQuota, err = parseSize(tc.Content.Quota)
-		if err != nil {
-			log.Warnf("Error parsing the storage quota: %v; the cleaner is disabled", err)
-		}
-	}
-
 	options := xmpp.ComponentOptions{
 		TransportConfiguration: xmpp.TransportConfiguration{
 			Address: conf.Host + ":" + conf.Port,
@ -114,22 +80,10 @@ func heartbeat(component *xmpp.Component) {
 	}
 	sessionLock.Unlock()

-	quotaLowThreshold := gateway.StorageQuota / 10 * 9
-
 	log.Info("Starting heartbeat queue")

 	// status updater thread
 	for {
-		gateway.StorageLock.Lock()
-		if quotaLowThreshold > 0 && tgConf.Content.Path != "" {
-			gateway.MeasureStorageSize(tgConf.Content.Path)
-
-			if gateway.CachedStorageSize > quotaLowThreshold {
-				gateway.CleanOldFiles(tgConf.Content.Path, quotaLowThreshold)
-			}
-		}
-		gateway.StorageLock.Unlock()
-
 		time.Sleep(60e9)
 		now := time.Now().Unix()

@ -142,24 +96,11 @@ func heartbeat(component *xmpp.Component) {
 						chatID,
 						session.LastSeenStatus(delayedStatus.TimestampOnline),
 						"away",
-						true,
 					)
 					delete(session.DelayedStatuses, chatID)
 				}
 			}
 			session.DelayedStatusesLock.Unlock()
-
-			// shrink message id maps
-			session.MessageIdChangesLock.Lock()
-			for _, idsMap := range session.MessageIdChanges {
-				for oldMessageId, newId := range idsMap {
-					if newId.Ts < now - 60 {
-						newId.Unlock()
-						delete(idsMap, oldMessageId)
-					}
-				}
-			}
-			session.MessageIdChangesLock.Unlock()
 		}
 		sessionLock.Unlock()

@ -180,8 +121,6 @@ func heartbeat(component *xmpp.Component) {
 			// it would be resolved on the next iteration
 			SaveSessions()
 		}
-
-		gateway.IdsDB.Gc()
 	}
 }

@ -259,53 +198,6 @@ func Close(component *xmpp.Component) {
 	// save sessions
 	SaveSessions()

-	// flush the ids database
-	gateway.IdsDB.Close()
-
 	// close stream
 	component.Disconnect()
 }
-
-// based on https://github.com/c2h5oh/datasize/blob/master/datasize.go
-func parseSize(sSize string) (uint64, error) {
-	sizeParts := sizeRegex.FindStringSubmatch(sSize)
-
-	if len(sizeParts) > 2 {
-		numPart, err := strconv.ParseInt(sizeParts[1], 10, 64)
-		if err != nil {
-			return 0, err
-		}
-
-		var divisor uint64
-		val := uint64(numPart)
-
-		if len(sizeParts[2]) > 0 {
-			switch sizeParts[2][0] {
-			case 'B':
-				divisor = 1
-			case 'K':
-				divisor = KB
-			case 'M':
-				divisor = MB
-			case 'G':
-				divisor = GB
-			case 'T':
-				divisor = TB
-			case 'P':
-				divisor = PB
-			case 'E':
-				divisor = EB
-			}
-		}
-
-		if divisor == 0 {
-			return 0, &strconv.NumError{"Wrong suffix", sSize, strconv.ErrSyntax}
-		}
-		if val > maxUint64/divisor {
-			return 0, &strconv.NumError{"Overflow", sSize, strconv.ErrRange}
-		}
-		return val * divisor, nil
-	}
-
-	return 0, &strconv.NumError{"Not enough parts", sSize, strconv.ErrSyntax}
-}
--- a/xmpp/component_test.go
+++ b/xmpp/component_test.go
@ -1,47 +0,0 @@
-package xmpp
-
-import (
-	"testing"
-)
-
-func TestParseSizeGarbage(t *testing.T) {
-	_, err := parseSize("abc")
-	if err == nil {
-		t.Error("abc should not be accepted")
-	}
-}
-
-func TestParseSizeAsphalt(t *testing.T) {
-	size, err := parseSize("2B")
-	if size != 2 {
-		t.Errorf("Error parsing two bytes: %v %v", size, err)
-	}
-}
-
-func TestParseSize9K(t *testing.T) {
-	size, err := parseSize("9 KB")
-	if size != 9216 {
-		t.Errorf("Error parsing 9K: %v %v", size, err)
-	}
-}
-
-func TestParseSizeBits(t *testing.T) {
-	size, err := parseSize("9 Kb")
-	if err == nil {
-		t.Errorf("Error parsing kilobits: %v %v", size, err)
-	}
-}
-
-func TestParseSizeEB(t *testing.T) {
-	size, err := parseSize("3EB")
-	if size != 3458764513820540928 {
-		t.Errorf("Error parsing exabytes: %v %v", size, err)
-	}
-}
-
-func TestParseSizeOverflow(t *testing.T) {
-	size, err := parseSize("314EB")
-	if err == nil {
-		t.Errorf("Overflow is not overflowing: %v %v", size, err)
-	}
-}
--- a/xmpp/extensions/extensions.go
+++ b/xmpp/extensions/extensions.go
@ -2,7 +2,6 @@ package extensions

 import (
 	"encoding/xml"
-	"strconv"

 	"gosrc.io/xmpp/stanza"
 )
@ -33,7 +32,6 @@ type IqVcardTemp struct {
 	N         IqVcardN
 	Tel       IqVcardTel
 	Photo     IqVcardPhoto
-	Desc      IqVcardDesc
 	ResultSet *stanza.ResultSet `xml:"set,omitempty"`
 }

@ -106,127 +104,6 @@ type IqVcardPhotoBinval struct {
 	Text    string   `xml:",chardata"`
 }

-// IqVcardDesc is vCard/DESC
-type IqVcardDesc struct {
-	XMLName xml.Name `xml:"DESC"`
-	Text    string   `xml:",chardata"`
-}
-
-// Reply is from XEP-0461
-type Reply struct {
-	XMLName xml.Name `xml:"urn:xmpp:reply:0 reply"`
-	To      string   `xml:"to,attr"`
-	Id      string   `xml:"id,attr"`
-}
-
-// Fallback is from XEP-0428
-type Fallback struct {
-	XMLName xml.Name          `xml:"urn:xmpp:fallback:0 fallback"`
-	For     string            `xml:"for,attr"`
-	Body    []FallbackBody    `xml:"urn:xmpp:fallback:0 body"`
-	Subject []FallbackSubject `xml:"urn:xmpp:fallback:0 subject"`
-}
-
-// FallbackBody is from XEP-0428
-type FallbackBody struct {
-	XMLName xml.Name `xml:"urn:xmpp:fallback:0 body"`
-	Start   string   `xml:"start,attr"`
-	End     string   `xml:"end,attr"`
-}
-
-// FallbackSubject is from XEP-0428
-type FallbackSubject struct {
-	XMLName xml.Name `xml:"urn:xmpp:fallback:0 subject"`
-	Start   string   `xml:"start,attr"`
-	End     string   `xml:"end,attr"`
-}
-
-// CarbonReceived is from XEP-0280
-type CarbonReceived struct {
-	XMLName   xml.Name         `xml:"urn:xmpp:carbons:2 received"`
-	Forwarded stanza.Forwarded `xml:"urn:xmpp:forward:0 forwarded"`
-}
-
-// CarbonSent is from XEP-0280
-type CarbonSent struct {
-	XMLName   xml.Name         `xml:"urn:xmpp:carbons:2 sent"`
-	Forwarded stanza.Forwarded `xml:"urn:xmpp:forward:0 forwarded"`
-}
-
-// ComponentPrivilege is from XEP-0356
-type ComponentPrivilege1 struct {
-	XMLName   xml.Name         `xml:"urn:xmpp:privilege:1 privilege"`
-	Perms     []ComponentPerm  `xml:"perm"`
-	Forwarded stanza.Forwarded `xml:"urn:xmpp:forward:0 forwarded"`
-}
-
-// ComponentPrivilege is from XEP-0356
-type ComponentPrivilege2 struct {
-	XMLName   xml.Name         `xml:"urn:xmpp:privilege:2 privilege"`
-	Perms     []ComponentPerm  `xml:"perm"`
-	Forwarded stanza.Forwarded `xml:"urn:xmpp:forward:0 forwarded"`
-}
-
-// ComponentPerm is from XEP-0356
-type ComponentPerm struct {
-	XMLName xml.Name `xml:"perm"`
-	Access  string   `xml:"access,attr"`
-	Type    string   `xml:"type,attr"`
-	Push    bool     `xml:"push,attr"`
-}
-
-// ClientMessage is a jabber:client NS message compatible with Prosody's XEP-0356 implementation
-type ClientMessage struct {
-	XMLName xml.Name `xml:"jabber:client message"`
-	stanza.Attrs
-
-	Subject    string                `xml:"subject,omitempty"`
-	Body       string                `xml:"body,omitempty"`
-	Thread     string                `xml:"thread,omitempty"`
-	Error      stanza.Err            `xml:"error,omitempty"`
-	Extensions []stanza.MsgExtension `xml:",omitempty"`
-}
-
-// Replace is from XEP-0308
-type Replace struct {
-	XMLName xml.Name `xml:"urn:xmpp:message-correct:0 replace"`
-	Id      string   `xml:"id,attr"`
-}
-
-// QueryRegister is from XEP-0077
-type QueryRegister struct {
-	XMLName      xml.Name                 `xml:"jabber:iq:register query"`
-	Instructions string                   `xml:"instructions"`
-	Username     string                   `xml:"username"`
-	Registered   *QueryRegisterRegistered `xml:"registered"`
-	Remove       *QueryRegisterRemove     `xml:"remove"`
-	ResultSet    *stanza.ResultSet        `xml:"set,omitempty"`
-}
-
-// QueryRegisterRegistered is a child element from XEP-0077
-type QueryRegisterRegistered struct {
-	XMLName xml.Name `xml:"registered"`
-}
-
-// QueryRegisterRemove is a child element from XEP-0077
-type QueryRegisterRemove struct {
-	XMLName xml.Name `xml:"remove"`
-}
-
-// EntityTime is from XEP-0202
-type EntityTime struct {
-	XMLName   xml.Name          `xml:"urn:xmpp:time time"`
-	Tzo       string            `xml:"tzo"`
-	Utc       string            `xml:"utc"`
-	ResultSet *stanza.ResultSet `xml:"set,omitempty"`
-}
-
-// AttachTo is from XEP-0367
-type AttachTo struct {
-	XMLName xml.Name `xml:"urn:xmpp:message-attaching:1 attach-to"`
-	Id      string   `xml:"id,attr"`
-}
-
 // Namespace is a namespace!
 func (c PresenceNickExtension) Namespace() string {
 	return c.XMLName.Space
@ -242,89 +119,11 @@ func (c IqVcardTemp) Namespace() string {
 	return c.XMLName.Space
 }

-// GetSet getsets!
+// Namespace is a namespace!
 func (c IqVcardTemp) GetSet() *stanza.ResultSet {
 	return c.ResultSet
 }

-// Namespace is a namespace!
-func (c Reply) Namespace() string {
-	return c.XMLName.Space
-}
-
-// Namespace is a namespace!
-func (c Fallback) Namespace() string {
-	return c.XMLName.Space
-}
-
-// Namespace is a namespace!
-func (c CarbonReceived) Namespace() string {
-	return c.XMLName.Space
-}
-
-// Namespace is a namespace!
-func (c CarbonSent) Namespace() string {
-	return c.XMLName.Space
-}
-
-// Namespace is a namespace!
-func (c ComponentPrivilege1) Namespace() string {
-	return c.XMLName.Space
-}
-
-// Namespace is a namespace!
-func (c ComponentPrivilege2) Namespace() string {
-	return c.XMLName.Space
-}
-
-// Namespace is a namespace!
-func (c Replace) Namespace() string {
-	return c.XMLName.Space
-}
-
-// Namespace is a namespace!
-func (c QueryRegister) Namespace() string {
-	return c.XMLName.Space
-}
-
-// GetSet getsets!
-func (c QueryRegister) GetSet() *stanza.ResultSet {
-	return c.ResultSet
-}
-
-// Namespace is a namespace!
-func (c EntityTime) Namespace() string {
-	return c.XMLName.Space
-}
-
-// GetSet getsets!
-func (c EntityTime) GetSet() *stanza.ResultSet {
-	return c.ResultSet
-}
-
-// Name is a packet name
-func (ClientMessage) Name() string {
-	return "message"
-}
-
-// Namespace is a namespace!
-func (c AttachTo) Namespace() string {
-	return c.XMLName.Space
-}
-
-// NewReplyFallback initializes a fallback range
-func NewReplyFallback(start uint64, end uint64) Fallback {
-	return Fallback{
-		For: "urn:xmpp:reply:0",
-		Body: []FallbackBody{
-			FallbackBody{
-				Start: strconv.FormatUint(start, 10),
-				End:   strconv.FormatUint(end, 10),
-			},
-		},
-	}
-}
-
 func init() {
 	// presence nick
 	stanza.TypeRegistry.MapExtension(stanza.PKTPresence, xml.Name{
@ -343,64 +142,4 @@ func init() {
 		"vcard-temp",
 		"vCard",
 	}, IqVcardTemp{})
-
-	// reply
-	stanza.TypeRegistry.MapExtension(stanza.PKTMessage, xml.Name{
-		"urn:xmpp:reply:0",
-		"reply",
-	}, Reply{})
-
-	// fallback
-	stanza.TypeRegistry.MapExtension(stanza.PKTMessage, xml.Name{
-		"urn:xmpp:fallback:0",
-		"fallback",
-	}, Fallback{})
-
-	// carbon received
-	stanza.TypeRegistry.MapExtension(stanza.PKTMessage, xml.Name{
-		"urn:xmpp:carbons:2",
-		"received",
-	}, CarbonReceived{})
-
-	// carbon sent
-	stanza.TypeRegistry.MapExtension(stanza.PKTMessage, xml.Name{
-		"urn:xmpp:carbons:2",
-		"sent",
-	}, CarbonSent{})
-
-	// component privilege v1
-	stanza.TypeRegistry.MapExtension(stanza.PKTMessage, xml.Name{
-		"urn:xmpp:privilege:1",
-		"privilege",
-	}, ComponentPrivilege1{})
-
-	// component privilege v2
-	stanza.TypeRegistry.MapExtension(stanza.PKTMessage, xml.Name{
-		"urn:xmpp:privilege:2",
-		"privilege",
-	}, ComponentPrivilege2{})
-
-	// message edit
-	stanza.TypeRegistry.MapExtension(stanza.PKTMessage, xml.Name{
-		"urn:xmpp:message-correct:0",
-		"replace",
-	}, Replace{})
-
-	// register query
-	stanza.TypeRegistry.MapExtension(stanza.PKTIQ, xml.Name{
-		"jabber:iq:register",
-		"query",
-	}, QueryRegister{})
-
-	// entity time
-	stanza.TypeRegistry.MapExtension(stanza.PKTIQ, xml.Name{
-		"urn:xmpp:time",
-		"time",
-	}, EntityTime{})
-
-	// attach-to
-	stanza.TypeRegistry.MapExtension(stanza.PKTMessage, xml.Name{
-		"urn:xmpp:message-attaching:1",
-		"attach-to",
-	}, AttachTo{})
 }
--- a/xmpp/gateway/gateway.go
+++ b/xmpp/gateway/gateway.go
@ -2,47 +2,17 @@ package gateway

 import (
 	"encoding/xml"
-	"github.com/pkg/errors"
-	"strconv"
 	"strings"
 	"sync"

-	"dev.narayana.im/narayana/telegabber/badger"
 	"dev.narayana.im/narayana/telegabber/xmpp/extensions"

-	"github.com/google/uuid"
 	log "github.com/sirupsen/logrus"
 	"github.com/soheilhy/args"
 	"gosrc.io/xmpp"
 	"gosrc.io/xmpp/stanza"
 )

-type Reply struct {
-	Author string
-	Id     string
-	Start  uint64
-	End    uint64
-}
-
-type MarkerType byte
-
-const (
-	MarkerTypeReceived MarkerType = iota
-	MarkerTypeDisplayed
-)
-
-type marker struct {
-	Type MarkerType
-	Id   string
-}
-
-const NSNick string = "http://jabber.org/protocol/nick"
-const NodeVCard4 string = "urn:xmpp:vcard4"
-const NodeAvatarMetadata string = "urn:xmpp:avatar:metadata"
-const NodeAvatarMetadataNotify string = NodeAvatarMetadata + "+notify"
-const NodeAvatarData string = "urn:xmpp:avatar:data"
-const NSCommand string = "http://jabber.org/protocol/commands"
-
 // Queue stores presences to send later
 var Queue = make(map[string]*stanza.Presence)
 var QueueLock = sync.Mutex{}
@ -50,70 +20,16 @@ var QueueLock = sync.Mutex{}
 // Jid stores the component's JID object
 var Jid *stanza.Jid

-// Version stores this software's version
-var Version string
-
-// IdsDB provides a disk-backed bidirectional dictionary of Telegram and XMPP ids
-var IdsDB badger.IdsDB
-
 // DirtySessions denotes that some Telegram session configurations
 // were changed and need to be re-flushed to the YamlDB
 var DirtySessions = false

-// MessageOutgoingPermissionVersion contains a XEP-0356 version to fake outgoing messages by foreign JIDs
-var MessageOutgoingPermissionVersion = 0
-
 // SendMessage creates and sends a message stanza
-func SendMessage(to string, from string, body string, id string, component *xmpp.Component, reply *Reply, replaceId string, isCarbon, requestReceipt bool) {
-	sendMessageWrapper(to, from, body, id, component, reply, nil, "", replaceId, isCarbon, requestReceipt)
-}
-
-// SendServiceMessage creates and sends a simple message stanza from transport
-func SendServiceMessage(to string, body string, component *xmpp.Component) {
-	var id string
-	if uuid, err := uuid.NewRandom(); err == nil {
-		id = uuid.String()
-	}
-	sendMessageWrapper(to, "", body, id, component, nil, nil, "", "", false, false)
-}
-
-// SendTextMessage creates and sends a simple message stanza
-func SendTextMessage(to string, from string, body string, component *xmpp.Component) {
-	var id string
-	if uuid, err := uuid.NewRandom(); err == nil {
-		id = uuid.String()
-	}
-	sendMessageWrapper(to, from, body, id, component, nil, nil, "", "", false, false)
-}
-
-// SendMessageWithOOB creates and sends a message stanza with OOB URL
-func SendMessageWithOOB(to string, from string, body string, id string, component *xmpp.Component, reply *Reply, oob, replaceId string, isCarbon, requestReceipt bool) {
-	sendMessageWrapper(to, from, body, id, component, reply, nil, oob, replaceId, isCarbon, requestReceipt)
-}
-
-// SendMessageMarker creates and sends a message stanza with a XEP-0333 marker
-func SendMessageMarker(to string, from string, component *xmpp.Component, markerType MarkerType, markerId string) {
-	sendMessageWrapper(to, from, "", "", component, nil, &marker{
-		Type: markerType,
-		Id:   markerId,
-	}, "", "", false, false)
-}
-
-func sendMessageWrapper(to string, from string, body string, id string, component *xmpp.Component, reply *Reply, marker *marker, oob, replaceId string, isCarbon, requestReceipt bool) {
-	toJid, err := stanza.NewJid(to)
-	if err != nil {
-		log.WithFields(log.Fields{
-			"to": to,
-		}).Error(errors.Wrap(err, "Invalid to JID!"))
-		return
-	}
-	bareTo := toJid.Bare()
-
+func SendMessage(to string, from string, body string, component *xmpp.Component) {
 	componentJid := Jid.Full()

 	var logFrom string
 	var messageFrom string
-	var messageTo string
 	if from == "" {
 		logFrom = componentJid
 		messageFrom = componentJid
@ -121,12 +37,6 @@ func sendMessageWrapper(to string, from string, body string, id string, componen
 		logFrom = from
 		messageFrom = from + "@" + componentJid
 	}
-	if isCarbon {
-		messageTo = messageFrom
-		messageFrom = bareTo + "/" + Jid.Resource
-	} else {
-		messageTo = to
-	}

 	log.WithFields(log.Fields{
 		"from": logFrom,
@ -136,120 +46,12 @@ func sendMessageWrapper(to string, from string, body string, id string, componen
 	message := stanza.Message{
 		Attrs: stanza.Attrs{
 			From: messageFrom,
-			To:   messageTo,
+			To:   to,
 			Type: "chat",
-			Id:   id,
 		},
 		Body: body,
 	}

-	if oob != "" {
-		message.Extensions = append(message.Extensions, stanza.OOB{
-			URL: oob,
-		})
-	}
-	if reply != nil {
-		message.Extensions = append(message.Extensions, extensions.Reply{
-			To: reply.Author,
-			Id: reply.Id,
-		})
-		if reply.End > 0 {
-			message.Extensions = append(message.Extensions, extensions.NewReplyFallback(reply.Start, reply.End))
-		}
-	}
-	if marker != nil {
-		if marker.Type == MarkerTypeReceived {
-			message.Extensions = append(message.Extensions, stanza.MarkReceived{ID: marker.Id})
-		} else if marker.Type == MarkerTypeDisplayed {
-			message.Extensions = append(message.Extensions, stanza.MarkDisplayed{ID: marker.Id})
-			message.Extensions = append(message.Extensions, stanza.ReceiptReceived{ID: marker.Id})
-		}
-	}
-	if !isCarbon && toJid.Resource != "" {
-		message.Extensions = append(message.Extensions, stanza.HintNoCopy{})
-	}
-	if requestReceipt {
-		message.Extensions = append(message.Extensions, stanza.Markable{})
-	}
-	if replaceId != "" {
-		message.Extensions = append(message.Extensions, extensions.Replace{Id: replaceId})
-	}
-
-	if isCarbon {
-		carbonMessage := extensions.ClientMessage{
-			Attrs: stanza.Attrs{
-				From: bareTo,
-				To:   to,
-				Type: "chat",
-			},
-		}
-		carbonMessage.Extensions = append(carbonMessage.Extensions, extensions.CarbonSent{
-			Forwarded: stanza.Forwarded{
-				Stanza: extensions.ClientMessage(message),
-			},
-		})
-		privilegeMessage := stanza.Message{
-			Attrs: stanza.Attrs{
-				From: Jid.Bare(),
-				To:   toJid.Domain,
-			},
-		}
-		if MessageOutgoingPermissionVersion == 2 {
-			privilegeMessage.Extensions = append(privilegeMessage.Extensions, extensions.ComponentPrivilege2{
-				Forwarded: stanza.Forwarded{
-					Stanza: carbonMessage,
-				},
-			})
-		} else {
-			privilegeMessage.Extensions = append(privilegeMessage.Extensions, extensions.ComponentPrivilege1{
-				Forwarded: stanza.Forwarded{
-					Stanza: carbonMessage,
-				},
-			})
-		}
-		sendMessage(&privilegeMessage, component)
-	} else {
-		sendMessage(&message, component)
-	}
-}
-
-// SetNickname sets a new nickname for a contact
-func SetNickname(to string, from string, nickname string, component *xmpp.Component) {
-	componentJid := Jid.Bare()
-	messageFrom := from + "@" + componentJid
-
-	log.WithFields(log.Fields{
-		"from": from,
-		"to":   to,
-	}).Warn("Set nickname")
-
-	message := stanza.Message{
-		Attrs: stanza.Attrs{
-			From: messageFrom,
-			To:   to,
-			Type: "headline",
-		},
-		Extensions: []stanza.MsgExtension{
-			stanza.PubSubEvent{
-				EventElement: stanza.ItemsEvent{
-					Node: NSNick,
-					Items: []stanza.ItemEvent{
-						stanza.ItemEvent{
-							Any: &stanza.Node{
-								XMLName: xml.Name{Space: NSNick, Local: "nick"},
-								Content: nickname,
-							},
-						},
-					},
-				},
-			},
-		},
-	}
-
-	sendMessage(&message, component)
-}
-
-func sendMessage(message *stanza.Message, component *xmpp.Component) {
 	// explicit check, as marshalling is expensive
 	if log.GetLevel() == log.DebugLevel {
 		xmlMessage, err := xml.Marshal(message)
@ -395,20 +197,6 @@ func SendPresence(component *xmpp.Component, to string, args ...args.V) error {
 	return nil
 }

-// SPAppendFrom appends numeric from and resource to varargs
-func SPAppendFrom(oldArgs []args.V, id int64) []args.V {
-	newArgs := append(oldArgs, SPFrom(strconv.FormatInt(id, 10)))
-	newArgs = append(newArgs, SPResource(Jid.Resource))
-	return newArgs
-}
-
-// SimplePresence crafts simple presence varargs
-func SimplePresence(from int64, typ string) []args.V {
-	args := []args.V{SPType(typ)}
-	args = SPAppendFrom(args, from)
-	return args
-}
-
 // ResumableSend tries to resume the connection once and sends the packet again
 func ResumableSend(component *xmpp.Component, packet stanza.Packet) error {
 	err := component.Send(packet)
@ -425,64 +213,3 @@ func ResumableSend(component *xmpp.Component, packet stanza.Packet) error {
 	}
 	return err
 }
-
-// SubscribeToTransport ensures a two-way subscription to the transport
-func SubscribeToTransport(component *xmpp.Component, jid string) {
-	SendPresence(component, jid, SPType("subscribe"))
-	SendPresence(component, jid, SPType("subscribed"))
-}
-
-// SplitJID tokenizes a JID string to bare JID and resource
-func SplitJID(from string) (string, string, bool) {
-	fromJid, err := stanza.NewJid(from)
-	if err != nil {
-		log.WithFields(log.Fields{
-			"from": from,
-		}).Error(errors.Wrap(err, "Invalid from JID!"))
-		return "", "", false
-	}
-	return fromJid.Bare(), fromJid.Resource, true
-}
-
-// SendPubSubAvatarNotification encourages clients to fetch an avatar
-func SendPubSubAvatarNotification(component *xmpp.Component, jid string, chatId int64, sha1 string, size int64) {
-	info := stanza.Node{
-		XMLName: xml.Name{Local: "info"},
-		Attrs: []xml.Attr{
-			xml.Attr{Name: xml.Name{Local: "bytes"}, Value: strconv.FormatInt(size, 10)},
-			xml.Attr{Name: xml.Name{Local: "height"}, Value: "160"},
-			xml.Attr{Name: xml.Name{Local: "id"}, Value: sha1},
-			xml.Attr{Name: xml.Name{Local: "type"}, Value: "image/jpeg"},
-			xml.Attr{Name: xml.Name{Local: "width"}, Value: "160"},
-		},
-	}
-	log.WithFields(log.Fields{
-		"chatId": chatId,
-	}).Debugf("%#v", info)
-
-	event := &stanza.PubSubEvent{
-		EventElement: &stanza.ItemsEvent{
-			Node: NodeAvatarMetadata,
-			Items: []stanza.ItemEvent{
-				stanza.ItemEvent{
-					Id: sha1,
-					Any: &stanza.Node{
-						XMLName: xml.Name{Local: "metadata", Space: NodeAvatarMetadata},
-						Nodes:   []stanza.Node{info},
-					},
-				},
-			},
-		},
-	}
-
-	message := stanza.Message{
-		Attrs: stanza.Attrs{
-			From: strconv.FormatInt(chatId, 10) + "@" + Jid.Bare(),
-			To:   jid,
-			Type: stanza.MessageTypeHeadline,
-		},
-		Extensions: []stanza.MsgExtension{event},
-	}
-
-	_ = ResumableSend(component, message)
-}
--- a/xmpp/gateway/storage.go
+++ b/xmpp/gateway/storage.go
@ -1,90 +0,0 @@
-package gateway
-
-import (
-	"io/ioutil"
-	"os"
-	"sort"
-	"sync"
-
-	log "github.com/sirupsen/logrus"
-)
-
-// StorageQuota is a value from config parsed to bytes number
-var StorageQuota uint64
-
-// CachedStorageSize estimates the storage size between full rescans
-var CachedStorageSize uint64
-var StorageLock = sync.Mutex{}
-
-// MeasureStorageSize replaces the estimated storage size with relevant data from the filesystem
-func MeasureStorageSize(path string) {
-	dents, err := ioutil.ReadDir(path)
-	if err != nil {
-		return
-	}
-
-	var total uint64
-	for _, fi := range dents {
-		if !fi.IsDir() {
-			total += uint64(fi.Size())
-		}
-	}
-
-	if total != CachedStorageSize {
-		if CachedStorageSize > 0 {
-			log.Warnf("Correcting cached storage size: was %v, actually %v", CachedStorageSize, total)
-		}
-		CachedStorageSize = total
-	}
-}
-
-// CleanOldFiles purges the oldest files in a directory that exceed the limit
-func CleanOldFiles(path string, limit uint64) {
-	dents, err := ioutil.ReadDir(path)
-	if err != nil {
-		return
-	}
-
-	var total uint64
-	for _, fi := range dents {
-		if !fi.IsDir() {
-			total += uint64(fi.Size())
-		}
-	}
-
-	// sort by time
-	sort.Slice(dents, func(i int, j int) bool {
-		return dents[i].ModTime().Before(dents[j].ModTime())
-	})
-
-	// purge
-	if total > limit {
-		toPurge := total - limit
-
-		var purgedAmount uint64
-		var purgedCount uint64
-
-		for _, fi := range dents {
-			if !fi.IsDir() {
-				err = os.Remove(path + string(os.PathSeparator) + fi.Name())
-				if err != nil {
-					log.Errorf("Couldn't remove %v: %v", fi.Name(), err)
-					continue
-				}
-
-				purgedAmount += uint64(fi.Size())
-				purgedCount += 1
-				if purgedAmount >= toPurge {
-					break
-				}
-			}
-		}
-
-		log.Infof("Cleaned %v bytes of %v old files", purgedAmount, purgedCount)
-		if CachedStorageSize > purgedAmount {
-			CachedStorageSize -= purgedAmount
-		} else {
-			CachedStorageSize = 0
-		}
-	}
-}
--- a/xmpp/handlers.go
+++ b/xmpp/handlers.go
--- a/xmpp/loginwizard.go
+++ b/xmpp/loginwizard.go
@ -1,101 +0,0 @@
-package xmpp
-
-import (
-	"fmt"
-
-	"dev.narayana.im/narayana/telegabber/telegram"
-	"dev.narayana.im/narayana/telegabber/xmpp/gateway"
-
-	log "github.com/sirupsen/logrus"
-	"gosrc.io/xmpp"
-	"gosrc.io/xmpp/stanza"
-)
-
-func loginWizardPayload(bare string, requestForm *stanza.Form, resource string) (payload *stanza.Command, cancelSend bool, returnSession *telegram.Client) {
-	payload = &stanza.Command{
-		SessionId: "loginwizard",
-		Node:      "loginwizard",
-	}
-
-	session, ok := sessions[bare]
-	if ok {
-		returnSession = session
-
-		if requestForm == nil {
-			session.StartLoginWizard(false)
-			cancelSend = true
-		} else {
-			if len(requestForm.Fields) != 1 {
-				setCommandPayloadError(payload, "Hey, don't tinker with the form!")
-				return
-			}
-			field := requestForm.Fields[0]
-			if field != nil {
-				if len(field.ValuesList) < 1 {
-					setCommandPayloadError(payload, "No value")
-					return
-				}
-				switch field.Var {
-				case "login", "code", "password":
-				default:
-					setCommandPayloadError(payload, "Unknown field")
-					return
-				}
-
-				session.StartLoginWizard(true)
-				response, success := session.ProcessTransportCommand(fmt.Sprintf("/%v %v", field.Var, field.ValuesList[0]), resource)
-				if !success {
-					setCommandPayloadError(payload, response)
-					session.StopLoginWizard()
-					return
-				}
-
-				cancelSend = true
-			}
-		}
-	} else {
-		setCommandPayloadError(payload, fmt.Sprintf("Session is not initialized, add the transport (%v) to contacts first", gateway.Jid.Bare()))
-	}
-
-	return
-}
-
-func sendLoginWizardResponse(component *xmpp.Component, answer *stanza.IQ, session *telegram.Client) {
-	payload := &stanza.Command{
-		SessionId: "loginwizard",
-		Node:      "loginwizard",
-	}
-
-	nextStage := "login"
-	if session != nil {
-		nextStage = session.GetLoginWizardNextStage()
-	}
-	log.Debugf("nextStage: %v", nextStage)
-
-	if nextStage == "cancel" {
-		setCommandPayloadError(payload, "Cancelled")
-		session.StopLoginWizard()
-	} else if nextStage == "success" {
-		payload.Status = stanza.CommandStatusCompleted
-		session.StopLoginWizard()
-	} else {
-		required := ""
-		form := stanza.Form{
-			Type:  stanza.FormTypeForm,
-			Title: "Login Wizard",
-			Fields: []*stanza.Field{
-				&stanza.Field{
-					Var:      nextStage,
-					Label:    nextStage,
-					Required: &required,
-				},
-			},
-		}
-		payload.Status = stanza.CommandStatusExecuting
-		payload.CommandElements = append(payload.CommandElements, &form)
-	}
-
-	answer.Payload = payload
-
-	gateway.ResumableSend(component, answer)
-}