Bump version to 0.8.0

There's no way to determine whether an avatar is removed or just hidden
from some users, so avatars are not removed by default.

.editorconfig

@@ -13,3 +13,6 @@ max_line_length = 99
 
 [*.{yaml,yml,py}]
 indent_style = space
+
+[.gitlab-ci.yml]
+indent_size = 2

.gitlab-ci.yml

@@ -2,37 +2,40 @@ image: docker:stable
 
 stages:
 - build
-- push
+- manifest
 
 default:
   before_script:
   - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
 
-build:
+build amd64:
   stage: build
+  tags:
+  - amd64
   script:
   - docker pull $CI_REGISTRY_IMAGE:latest || true
-  - docker build --pull --cache-from $CI_REGISTRY_IMAGE:latest --tag $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA .
-  - docker push $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA
+  - docker build --pull --cache-from $CI_REGISTRY_IMAGE:latest --tag $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-amd64 .
+  - docker push $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-amd64
+  - docker rmi $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-amd64
 
-push latest:
-  stage: push
-  only:
-  - master
-  variables:
-    GIT_STRATEGY: none
+build arm64:
+  stage: build
+  tags:
+  - arm64
   script:
-  - docker pull $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA
-  - docker tag $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA $CI_REGISTRY_IMAGE:latest
-  - docker push $CI_REGISTRY_IMAGE:latest
+  - docker pull $CI_REGISTRY_IMAGE:latest || true
+  - docker build --pull --cache-from $CI_REGISTRY_IMAGE:latest --tag $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-arm64 .
+  - docker push $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-arm64
+  - docker rmi $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-arm64
 
-push tag:
-  stage: push
-  variables:
-    GIT_STRATEGY: none
-  except:
-  - master
+manifest:
+  stage: manifest
+  before_script:
+  - "mkdir -p $HOME/.docker && echo '{\"experimental\": \"enabled\"}' > $HOME/.docker/config.json"
+  - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
   script:
-  - docker pull $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA
-  - docker tag $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME
-  - docker push $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME
+  - docker pull $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-amd64
+  - docker pull $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-arm64
+  - if [ "$CI_COMMIT_BRANCH" = "master" ]; then docker manifest create $CI_REGISTRY_IMAGE:latest $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-amd64 $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-arm64 && docker manifest push $CI_REGISTRY_IMAGE:latest; fi
+  - if [ "$CI_COMMIT_BRANCH" != "master" ]; then docker manifest create $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-amd64 $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-arm64 && docker manifest push $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME; fi
+  - docker rmi $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-amd64 $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA-arm64

Dockerfile

@@ -1,55 +1,21 @@
-FROM docker.io/alpine:3.10 AS lottieconverter
+FROM dock.mau.dev/tulir/lottieconverter:alpine-3.11
 
-WORKDIR /build
+RUN echo "@edge_main http://dl-cdn.alpinelinux.org/alpine/edge/main" >> /etc/apk/repositories
+RUN echo "@edge_testing http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
+RUN echo "@edge_community http://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories
 
-RUN apk add --no-cache git build-base cmake \
-  && git clone https://github.com/Samsung/rlottie.git \
-  && cd rlottie \
-  && mkdir build \
-  && cd build \
-  && cmake .. \
-  && make -j2 \
-  && make install \
-  && cd ../..
-
-RUN apk add --no-cache libpng libpng-dev zlib zlib-dev \
-  && git clone https://github.com/Eramde/LottieConverter.git \
-  && cd LottieConverter \
-  && git checkout 543c1d23ac9322f4f03c7fb6612ea7d026d44ac0 \
-  && make
-
-FROM docker.io/alpine:3.11
-
-ENV UID=1337 \
-    GID=1337 \
-    FFMPEG_BINARY=/usr/bin/ffmpeg
-
-COPY --from=lottieconverter /usr/lib/librlottie* /usr/lib/
-COPY --from=lottieconverter /build/LottieConverter/dist/Debug/GNU-Linux/lottieconverter /usr/local/bin/lottieconverter
-
-COPY . /opt/mautrix-telegram
-WORKDIR /opt/mautrix-telegram
-RUN apk add --no-cache --virtual .build-deps \
-      python3-dev \
-      libffi-dev \
-      build-base \
-      git \
-  && apk add --no-cache \
+RUN apk add --no-cache \
       py3-virtualenv \
       py3-pillow \
       py3-aiohttp \
       py3-magic \
       py3-sqlalchemy \
+      py3-alembic@edge_testing \
       py3-psycopg2 \
       py3-ruamel.yaml \
+      py3-commonmark@edge_testing \
       # Indirect dependencies
       py3-idna \
-      #commonmark
-        py3-future \
-      #alembic
-        py3-mako \
-        py3-dateutil \
-        py3-markupsafe \
       #moviepy
         py3-decorator \
         py3-tqdm \
@@ -58,20 +24,50 @@ RUN apk add --no-cache --virtual .build-deps \
           py3-numpy \
       #telethon
         py3-rsa \
+        # Optional for socks proxies
+        py3-pysocks \
         # cryptg
           py3-cffi \
+      py3-brotli \
       # Other dependencies
       ffmpeg \
       ca-certificates \
       su-exec \
       netcat-openbsd \
-      # lottieconverter
-      zlib libpng \
- && pip3 install .[speedups,hq_thumbnails,metrics] \
- # pip installs the sources to /usr/lib/python3.8/site-packages, so we don't need them here
- && rm -rf /opt/mautrix-telegram/mautrix_telegram \
+      # olm
+      olm-dev@edge_community \
+      # matrix-nio?
+      py3-future \
+      py3-atomicwrites \
+      py3-pycryptodome@edge_main \
+      py3-peewee@edge_community \
+      py3-pyrsistent@edge_community \
+      py3-jsonschema \
+      py3-aiofiles \
+      py3-cachetools@edge_community \
+      py3-prometheus-client@edge_community \
+      py3-unpaddedbase64 \
+      py3-pyaes@edge_testing \
+      py3-logbook@edge_testing
+
+COPY requirements.txt /opt/mautrix-telegram/requirements.txt
+COPY optional-requirements.txt /opt/mautrix-telegram/optional-requirements.txt
+WORKDIR /opt/mautrix-telegram
+RUN apk add --virtual .build-deps \
+      python3-dev \
+      libffi-dev \
+      build-base \
+ && sed -Ei 's/psycopg2-binary.+//' optional-requirements.txt \
+ && pip3 install -r requirements.txt -r optional-requirements.txt \
  && apk del .build-deps
 
+COPY . /opt/mautrix-telegram
+RUN apk add git && pip3 install .[speedups,hq_thumbnails,metrics,e2be] && apk del git \
+  # This doesn't make the image smaller, but it's needed so that the `version` command works properly
+  && cp mautrix_telegram/example-config.yaml . && rm -rf mautrix_telegram
+
 VOLUME /data
+ENV UID=1337 GID=1337 \
+    FFMPEG_BINARY=/usr/bin/ffmpeg
 
 CMD ["/opt/mautrix-telegram/docker-run.sh"]

MANIFEST.in

@@ -0,0 +1,4 @@
+include README.md
+include LICENSE
+include requirements.txt
+include optional-requirements.txt

README.md

@@ -7,6 +7,9 @@
 
 A Matrix-Telegram hybrid puppeting/relaybot bridge.
 
+## Sponsors
+* [Joel Lehtonen / Zouppen](https://github.com/zouppen)
+
 ### [Wiki](https://github.com/tulir/mautrix-telegram/wiki)
 
 ### [Features & Roadmap](https://github.com/tulir/mautrix-telegram/blob/master/ROADMAP.md)

ROADMAP.md

@@ -29,6 +29,9 @@
   * [x] Message deletions
   * [x] Message edits
   * [ ] Message history
+    * [x] Manually (`!tg backfill`)
+    * [ ] Automatically when creating portal
+    * [ ] Automatically for missed messages
   * [x] Avatars
   * [x] Presence
   * [x] Typing notifications

alembic/versions/24f31fc8a72b_add_encrypted_field_for_portals.py

@@ -0,0 +1,27 @@
+"""Add encrypted field for portals
+
+Revision ID: 24f31fc8a72b
+Revises: a7c04a56041b
+Create Date: 2020-03-28 20:14:29.046699
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "24f31fc8a72b"
+down_revision = "a7c04a56041b"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    with op.batch_alter_table("portal") as batch_op:
+        batch_op.add_column(sa.Column("encrypted", sa.Boolean(), nullable=False,
+                                      server_default=sa.sql.expression.false()))
+
+
+def downgrade():
+    with op.batch_alter_table("portal") as batch_op:
+        batch_op.drop_column("encrypted")

alembic/versions/d3c922a6acd2_add_decryption_info_field_for_.py

@@ -0,0 +1,26 @@
+"""Add decryption info field for reuploaded telegram files
+
+Revision ID: d3c922a6acd2
+Revises: 24f31fc8a72b
+Create Date: 2020-03-30 20:07:17.340346
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'd3c922a6acd2'
+down_revision = '24f31fc8a72b'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    with op.batch_alter_table("telegram_file") as batch_op:
+        batch_op.add_column(sa.Column("decryption_info", sa.Text(), nullable=True))
+
+
+def downgrade():
+    with op.batch_alter_table("telegram_file") as batch_op:
+        batch_op.drop_column("decryption_info")

alembic/versions/dff56c93da8d_add_matrix_nio_state_store_to_main_db.py

@@ -0,0 +1,71 @@
+"""Add matrix-nio state store to main db
+
+Revision ID: dff56c93da8d
+Revises: d3c922a6acd2
+Create Date: 2020-03-31 22:04:04.014048
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'dff56c93da8d'
+down_revision = 'd3c922a6acd2'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('nio_account',
+    sa.Column('user_id', sa.String(length=255), nullable=False),
+    sa.Column('device_id', sa.String(length=255), nullable=False),
+    sa.Column('shared', sa.Boolean(), nullable=False),
+    sa.Column('sync_token', sa.Text(), nullable=False),
+    sa.Column('account', sa.LargeBinary(), nullable=False),
+    sa.PrimaryKeyConstraint('user_id', 'device_id')
+    )
+    op.create_table('nio_device_key',
+    sa.Column('user_id', sa.String(length=255), nullable=False),
+    sa.Column('device_id', sa.String(length=255), nullable=False),
+    sa.Column('display_name', sa.String(length=255), nullable=False),
+    sa.Column('deleted', sa.Boolean(), nullable=False),
+    sa.Column('keys', sa.PickleType(), nullable=False),
+    sa.PrimaryKeyConstraint('user_id', 'device_id')
+    )
+    op.create_table('nio_megolm_inbound_session',
+    sa.Column('session_id', sa.String(length=255), nullable=False),
+    sa.Column('sender_key', sa.String(length=255), nullable=False),
+    sa.Column('fp_key', sa.String(length=255), nullable=False),
+    sa.Column('room_id', sa.String(length=255), nullable=False),
+    sa.Column('session', sa.LargeBinary(), nullable=False),
+    sa.Column('forwarded_chains', sa.PickleType(), nullable=False),
+    sa.PrimaryKeyConstraint('session_id')
+    )
+    op.create_table('nio_olm_session',
+    sa.Column('session_id', sa.String(length=255), nullable=False),
+    sa.Column('sender_key', sa.String(length=255), nullable=False),
+    sa.Column('session', sa.LargeBinary(), nullable=False),
+    sa.Column('created_at', sa.DateTime(), nullable=False),
+    sa.Column('last_used', sa.DateTime(), nullable=False),
+    sa.PrimaryKeyConstraint('session_id')
+    )
+    op.create_table('nio_outgoing_key_request',
+    sa.Column('request_id', sa.String(length=255), nullable=False),
+    sa.Column('session_id', sa.String(length=255), nullable=False),
+    sa.Column('room_id', sa.String(length=255), nullable=False),
+    sa.Column('algorithm', sa.String(length=255), nullable=False),
+    sa.PrimaryKeyConstraint('request_id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('nio_outgoing_key_request')
+    op.drop_table('nio_olm_session')
+    op.drop_table('nio_megolm_inbound_session')
+    op.drop_table('nio_device_key')
+    op.drop_table('nio_account')
+    # ### end Alembic commands ###

docker-run.sh

@@ -13,8 +13,6 @@ sed -i "s#sqlite:///mautrix-telegram.db#sqlite:////data/mautrix-telegram.db#" /d
 if [ -f /data/mx-state.json ]; then
 	ln -s /data/mx-state.json
 fi
-# Check that database is in the right state
-alembic -x config=/data/config.yaml upgrade head
 
 if [ ! -f /data/config.yaml ]; then
 	cp example-config.yaml /data/config.yaml
@@ -35,5 +33,8 @@ if [ ! -f /data/registration.yaml ]; then
 	exit
 fi
 
+# Check that database is in the right state
+alembic -x config=/data/config.yaml upgrade head
+
 fixperms
 exec su-exec $UID:$GID python3 -m mautrix_telegram -c /data/config.yaml

mautrix_telegram/__init__.py

@@ -1,2 +1,2 @@
-__version__ = "0.7.2rc1"
+__version__ = "0.8.0"
 __author__ = "Tulir Asokan <tulir@maunium.net>"

mautrix_telegram/__main__.py

@@ -44,6 +44,7 @@ except ImportError:
 
 
 class TelegramBridge(Bridge):
+    module = "mautrix_telegram"
     name = "mautrix-telegram"
     command = "python -m mautrix-telegram"
     description = "A Matrix-Telegram puppeting bridge."

mautrix_telegram/abstract_user.py

@@ -35,6 +35,7 @@ from telethon.tl.types import (
 from mautrix.types import UserID, PresenceState
 from mautrix.errors import MatrixError
 from mautrix.appservice import AppService
+from mautrix.util.logging import TraceLogger
 from alchemysession import AlchemySessionContainer
 
 from . import portal as po, puppet as pu, __version__
@@ -68,7 +69,7 @@ except ImportError:
 class AbstractUser(ABC):
     session_container: AlchemySessionContainer = None
     loop: asyncio.AbstractEventLoop = None
-    log: logging.Logger
+    log: TraceLogger
     az: AppService
     relaybot: Optional['Bot']
     ignore_incoming_bot_events: bool = True
@@ -258,7 +259,7 @@ class AbstractUser(ABC):
         elif isinstance(update, UpdateReadHistoryOutbox):
             await self.update_read_receipt(update)
         else:
-            self.log.debug("Unhandled update: %s", update)
+            self.log.trace("Unhandled update: %s", update)
 
     async def update_pinned_messages(self, update: Union[UpdateChannelPinnedMessage,
                                                          UpdateChatPinnedMessage]) -> None:
@@ -333,7 +334,7 @@ class AbstractUser(ABC):
             if await puppet.update_avatar(self, update.photo):
                 puppet.save()
         else:
-            self.log.warning("Unexpected other user info update: %s", update)
+            self.log.warning(f"Unexpected other user info update: {type(update)}")
 
     async def update_status(self, update: UpdateUserStatus) -> None:
         puppet = pu.Puppet.get(TelegramID(update.user_id))
@@ -342,7 +343,7 @@ class AbstractUser(ABC):
         elif isinstance(update.status, UserStatusOffline):
             await puppet.default_mxid_intent.set_presence(PresenceState.OFFLINE)
         else:
-            self.log.warning("Unexpected user status update: %s", update)
+            self.log.warning(f"Unexpected user status update: type({update})")
         return
 
     def get_message_details(self, update: UpdateMessage) -> Tuple[UpdateMessageContent,
@@ -366,8 +367,7 @@ class AbstractUser(ABC):
                 portal = po.Portal.get_by_entity(update.to_id, receiver_id=self.tgid)
             sender = pu.Puppet.get(update.from_id) if update.from_id else None
         else:
-            self.log.warning(
-                f"Unexpected message type in User#get_message_details: {type(update)}")
+            self.log.warning(f"Unexpected message type in User#get_message_details: {type(update)}")
             return update, None, None
         return update, sender, portal
 
@@ -428,11 +428,10 @@ class AbstractUser(ABC):
 
         if isinstance(update, MessageService):
             if isinstance(update.action, MessageActionChannelMigrateFrom):
-                self.log.debug(f"Ignoring action %s to %s by %d", update.action,
-                               portal.tgid_log,
+                self.log.trace(f"Ignoring action %s to %s by %d", update.action, portal.tgid_log,
                                sender.id)
                 return
-            self.log.debug("Handling action %s to %s by %d", update.action, portal.tgid_log,
+            self.log.trace("Handling action %s to %s by %d", update.action, portal.tgid_log,
                            sender.id)
             return await portal.handle_telegram_action(self, sender, update)
 

mautrix_telegram/bot.py

@@ -147,7 +147,7 @@ class Bot(AbstractUser):
         if self.whitelist_group_admins:
             if isinstance(chat, PeerChannel):
                 p = await self.client(GetParticipantRequest(chat, tgid))
-                return isinstance(p, (ChannelParticipantCreator, ChannelParticipantAdmin))
+                return isinstance(p.participant, (ChannelParticipantCreator, ChannelParticipantAdmin))
             elif isinstance(chat, PeerChat):
                 chat = await self.client(GetFullChatRequest(chat.chat_id))
                 participants = chat.full_chat.participants.participants

mautrix_telegram/commands/portal/create_chat.py

@@ -25,10 +25,10 @@ from .util import user_has_power_level, get_initial_state
                  help_args="[_type_]",
                  help_text="Create a Telegram chat of the given type for the current Matrix room. "
                            "The type is either `group`, `supergroup` or `channel` (defaults to "
-                           "`group`).")
+                           "`supergroup`).")
 async def create(evt: CommandEvent) -> EventID:
-    type = evt.args[0] if len(evt.args) > 0 else "group"
-    if type not in {"chat", "group", "supergroup", "channel"}:
+    type = evt.args[0] if len(evt.args) > 0 else "supergroup"
+    if type not in ("chat", "group", "supergroup", "channel"):
         return await evt.reply(
             "**Usage:** `$cmdprefix+sp create ['group'/'supergroup'/'channel']`")
 

mautrix_telegram/commands/portal/unbridge.py

@@ -22,9 +22,7 @@ from .. import command_handler, CommandEvent, SECTION_PORTAL_MANAGEMENT
 from .util import user_has_power_level
 
 
-async def _get_portal_and_check_permission(evt: CommandEvent, permission: str,
-                                           action: Optional[str] = None
-                                           ) -> Optional[po.Portal]:
+async def _get_portal_and_check_permission(evt: CommandEvent) -> Optional[po.Portal]:
     room_id = RoomID(evt.args[0]) if len(evt.args) > 0 else evt.room_id
 
     portal = po.Portal.get_by_mxid(room_id)
@@ -33,9 +31,8 @@ async def _get_portal_and_check_permission(evt: CommandEvent, permission: str,
         await evt.reply(f"{that_this} is not a portal room.")
         return None
 
-    if not await user_has_power_level(portal.mxid, evt.az.intent, evt.sender, permission):
-        action = action or f"{permission.replace('_', ' ')}s"
-        await evt.reply(f"You do not have the permissions to {action} that portal.")
+    if not await user_has_power_level(portal.mxid, evt.az.intent, evt.sender, "unbridge"):
+        await evt.reply("You do not have the permissions to unbridge that portal.")
         return None
     return portal
 
@@ -64,7 +61,7 @@ def _get_portal_murder_function(action: str, room_id: str, function: Callable, c
                            "Only works for group chats; to delete a private chat portal, simply "
                            "leave the room.")
 async def delete_portal(evt: CommandEvent) -> Optional[EventID]:
-    portal = await _get_portal_and_check_permission(evt, "unbridge")
+    portal = await _get_portal_and_check_permission(evt)
     if not portal:
         return None
 
@@ -85,7 +82,7 @@ async def delete_portal(evt: CommandEvent) -> Optional[EventID]:
                  help_section=SECTION_PORTAL_MANAGEMENT,
                  help_text="Remove puppets from the current portal room and forget the portal.")
 async def unbridge(evt: CommandEvent) -> Optional[EventID]:
-    portal = await _get_portal_and_check_permission(evt, "unbridge")
+    portal = await _get_portal_and_check_permission(evt)
     if not portal:
         return None
 

mautrix_telegram/commands/telegram/misc.py

@@ -20,10 +20,11 @@ import base64
 import re
 
 from telethon.errors import (InviteHashInvalidError, InviteHashExpiredError, OptionsTooMuchError,
-                             UserAlreadyParticipantError, ChatIdInvalidError)
+                             UserAlreadyParticipantError, ChatIdInvalidError,
+                             TakeoutInitDelayError, EmoticonInvalidError)
 from telethon.tl.patched import Message
 from telethon.tl.types import (User as TLUser, TypeUpdates, MessageMediaGame, MessageMediaPoll,
-                               TypeInputPeer)
+                               TypeInputPeer, InputMediaDice)
 from telethon.tl.types.messages import BotCallbackAnswer
 from telethon.tl.functions.messages import (ImportChatInviteRequest, CheckChatInviteRequest,
                                             GetBotCallbackAnswerRequest, SendVoteRequest)
@@ -35,7 +36,8 @@ from ... import puppet as pu, portal as po
 from ...abstract_user import AbstractUser
 from ...db import Message as DBMessage
 from ...types import TelegramID
-from ...commands import command_handler, CommandEvent, SECTION_MISC, SECTION_CREATING_PORTALS
+from ...commands import (command_handler, CommandEvent, SECTION_MISC, SECTION_CREATING_PORTALS,
+                         SECTION_PORTAL_MANAGEMENT)
 
 
 @command_handler(needs_auth=False,
@@ -102,7 +104,8 @@ async def pm(evt: CommandEvent) -> EventID:
         return await evt.reply("**Usage:** `$cmdprefix+sp pm <user identifier>`")
 
     try:
-        user = await evt.sender.client.get_entity(evt.args[0])
+        id = "".join(evt.args).translate({ord(c): None for c in "+()- "})
+        user = await evt.sender.client.get_entity(id)
     except ValueError:
         return await evt.reply("Invalid user identifier or user not found.")
 
@@ -162,7 +165,9 @@ async def join(evt: CommandEvent) -> Optional[EventID]:
             try:
                 await portal.create_matrix_room(evt.sender, chat, [evt.sender.mxid])
             except ChatIdInvalidError as e:
-                logging.getLogger("mau.commands").info(updates.stringify())
+                logging.getLogger("mau.commands").trace("ChatIdInvalidError while creating portal "
+                                                        "from !tg join command: %s",
+                                                        updates.stringify())
                 raise e
             return await evt.reply(f"Created room for {portal.title}")
     return None
@@ -303,3 +308,41 @@ async def vote(evt: CommandEvent) -> EventID:
         return await evt.reply("You passed too many options.")
     # TODO use response
     return await evt.mark_read()
+
+
+@command_handler(help_section=SECTION_MISC, help_args="<_emoji_>",
+                 help_text="Roll a dice (\U0001F3B2) or throw a dart (\U0001F3AF) "
+                           "on the Telegram servers.")
+async def random(evt: CommandEvent) -> EventID:
+    if not evt.is_portal:
+        return await evt.reply("You can only roll dice in portal rooms")
+    portal = po.Portal.get_by_mxid(evt.room_id)
+    arg = evt.args[0] if len(evt.args) > 0 else "dice"
+    emoticon = {
+        "dart": "\U0001F3AF",
+        "dice": "\U0001F3B2",
+    }.get(arg, arg)
+    try:
+        await evt.sender.client.send_media(await portal.get_input_entity(evt.sender),
+                                           InputMediaDice(emoticon))
+    except EmoticonInvalidError:
+        return await evt.reply("Invalid emoji for randomization")
+
+
+@command_handler(help_section=SECTION_PORTAL_MANAGEMENT,
+                 help_text="Backfill messages from Telegram history.")
+async def backfill(evt: CommandEvent) -> None:
+    if not evt.is_portal:
+        await evt.reply("You can only use backfill in portal rooms")
+        return
+    portal = po.Portal.get_by_mxid(evt.room_id)
+    try:
+        await portal.backfill(evt.sender)
+    except TakeoutInitDelayError:
+        msg = ("Please accept the data export request from a mobile device, "
+               "then re-run the backfill command.")
+        if portal.peer_type == "user":
+            from mautrix.appservice import IntentAPI
+            await portal.main_intent.send_notice(evt.room_id, msg)
+        else:
+            await evt.reply(msg)

mautrix_telegram/config.py

@@ -45,23 +45,18 @@ class Config(BaseBridgeConfig):
         ]
 
     def do_update(self, helper: ConfigUpdateHelper) -> None:
+        super().do_update(helper)
         copy, copy_dict, base = helper
 
-        copy("homeserver.address")
-        copy("homeserver.domain")
-        copy("homeserver.verify_ssl")
-
         if "appservice.protocol" in self and "appservice.address" not in self:
             protocol, hostname, port = (self["appservice.protocol"], self["appservice.hostname"],
                                         self["appservice.port"])
             base["appservice.address"] = f"{protocol}://{hostname}:{port}"
-        else:
-            copy("appservice.address")
-        copy("appservice.hostname")
-        copy("appservice.port")
-        copy("appservice.max_body_size")
-
-        copy("appservice.database")
+        if "appservice.debug" in self and "logging" not in self:
+            level = "DEBUG" if self["appservice.debug"] else "INFO"
+            base["logging.root.level"] = level
+            base["logging.loggers.mau.level"] = level
+            base["logging.loggers.telethon.level"] = level
 
         copy("appservice.public.enabled")
         copy("appservice.public.prefix")
@@ -73,16 +68,8 @@ class Config(BaseBridgeConfig):
         if base["appservice.provisioning.shared_secret"] == "generate":
             base["appservice.provisioning.shared_secret"] = self._new_token()
 
-        copy("appservice.id")
-        copy("appservice.bot_username")
-        copy("appservice.bot_displayname")
-        copy("appservice.bot_avatar")
-
         copy("appservice.community_id")
 
-        copy("appservice.as_token")
-        copy("appservice.hs_token")
-
         copy("metrics.enabled")
         copy("metrics.listen_port")
 
@@ -96,6 +83,7 @@ class Config(BaseBridgeConfig):
 
         copy("bridge.displayname_preference")
         copy("bridge.displayname_max_length")
+        copy("bridge.allow_avatar_remove")
 
         copy("bridge.max_initial_member_sync")
         copy("bridge.sync_channel_members")
@@ -118,6 +106,11 @@ class Config(BaseBridgeConfig):
         copy("bridge.federate_rooms")
         copy("bridge.animated_sticker.target")
         copy("bridge.animated_sticker.args")
+        copy("bridge.encryption.allow")
+        copy("bridge.encryption.default")
+        copy("bridge.private_chat_portal_meta")
+        copy("bridge.delivery_receipts")
+        copy("bridge.delivery_error_reports")
 
         copy("bridge.initial_power_level_overrides.group")
         copy("bridge.initial_power_level_overrides.user")
@@ -202,14 +195,6 @@ class Config(BaseBridgeConfig):
         copy("telegram.proxy.username")
         copy("telegram.proxy.password")
 
-        if "appservice.debug" in self and "logging" not in self:
-            level = "DEBUG" if self["appservice.debug"] else "INFO"
-            base["logging.root.level"] = level
-            base["logging.loggers.mau.level"] = level
-            base["logging.loggers.telethon.level"] = level
-        else:
-            copy("logging")
-
     def _get_permissions(self, key: str) -> Permissions:
         level = self["bridge.permissions"].get(key, "")
         admin = level == "admin"

mautrix_telegram/db/__init__.py

@@ -24,6 +24,11 @@ from .puppet import Puppet
 from .telegram_file import TelegramFile
 from .user import User, UserPortal, Contact
 
+try:
+    from mautrix.bridge.db.nio_state_store import init as init_nio_db
+except ImportError:
+    init_nio_db = None
+
 
 def init(db_engine: Engine) -> None:
     for table in (Portal, Message, User, Contact, UserPortal, Puppet, TelegramFile, UserProfile,
@@ -32,3 +37,5 @@ def init(db_engine: Engine) -> None:
         table.t = table.__table__
         table.c = table.t.c
         table.column_names = table.c.keys()
+    if init_nio_db:
+        init_nio_db(db_engine)

mautrix_telegram/db/message.py

@@ -61,6 +61,16 @@ class Message(Base):
         except StopIteration:
             return 0
 
+    @classmethod
+    def find_last(cls, mx_room: RoomID, tg_space: TelegramID) -> Optional['Message']:
+        return cls._one_or_none(cls.db.execute(
+            cls._make_simple_select(cls.c.mx_room == mx_room, cls.c.tg_space == tg_space)
+                .order_by(desc(cls.c.tgid)).limit(1)))
+
+    @classmethod
+    def delete_all(cls, mx_room: RoomID) -> None:
+        cls.db.execute(cls.t.delete().where(cls.c.mx_room == mx_room))
+
     @classmethod
     def get_by_mxid(cls, mxid: EventID, mx_room: RoomID, tg_space: TelegramID
                     ) -> Optional['Message']:

mautrix_telegram/db/portal.py

@@ -15,7 +15,7 @@
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 from typing import Optional
 
-from sqlalchemy import Column, Integer, String, Boolean, Text, func
+from sqlalchemy import Column, Integer, String, Boolean, Text, func, sql
 
 from mautrix.types import RoomID
 from mautrix.util.db import Base
@@ -34,6 +34,7 @@ class Portal(Base):
 
     # Matrix portal information
     mxid: RoomID = Column(String, unique=True, nullable=True)
+    encrypted: bool = Column(Boolean, nullable=False, server_default=sql.expression.false())
 
     config: str = Column(Text, nullable=True)
 

mautrix_telegram/db/telegram_file.py

@@ -13,15 +13,37 @@
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
-from typing import Optional
+from typing import Optional, cast, Dict, Any
 
-from sqlalchemy import Column, ForeignKey, Integer, BigInteger, String, Boolean
+from sqlalchemy import (Column, ForeignKey, Integer, BigInteger, String, Boolean, Text,
+                        TypeDecorator)
 from sqlalchemy.engine.result import RowProxy
 
-from mautrix.types import ContentURI
+from mautrix.types import ContentURI, EncryptedFile
 from mautrix.util.db import Base
 
 
+class DBEncryptedFile(TypeDecorator):
+    impl = Text
+
+    @property
+    def python_type(self):
+        return EncryptedFile
+
+    def process_bind_param(self, value: EncryptedFile, dialect) -> Optional[str]:
+        if value is not None:
+            return value.json()
+        return None
+
+    def process_result_value(self, value: str, dialect) -> Optional[EncryptedFile]:
+        if value is not None:
+            return EncryptedFile.parse_json(value)
+        return None
+
+    def process_literal_param(self, value, dialect):
+        return value
+
+
 class TelegramFile(Base):
     __tablename__ = "telegram_file"
 
@@ -33,12 +55,13 @@ class TelegramFile(Base):
     size: Optional[int] = Column(Integer, nullable=True)
     width: Optional[int] = Column(Integer, nullable=True)
     height: Optional[int] = Column(Integer, nullable=True)
+    decryption_info: Optional[Dict[str, Any]] = Column(DBEncryptedFile, nullable=True)
     thumbnail_id: str = Column("thumbnail", String, ForeignKey("telegram_file.id"), nullable=True)
     thumbnail: Optional['TelegramFile'] = None
 
     @classmethod
     def scan(cls, row: RowProxy) -> 'TelegramFile':
-        telegram_file: TelegramFile = super().scan(row)
+        telegram_file = cast(TelegramFile, super().scan(row))
         if isinstance(telegram_file.thumbnail, str):
             telegram_file.thumbnail = cls.get(telegram_file.thumbnail)
         return telegram_file
@@ -52,5 +75,5 @@ class TelegramFile(Base):
             conn.execute(self.t.insert().values(
                 id=self.id, mxc=self.mxc, mime_type=self.mime_type,
                 was_converted=self.was_converted, timestamp=self.timestamp, size=self.size,
-                width=self.width, height=self.height,
+                width=self.width, height=self.height, decryption_info=self.decryption_info,
                 thumbnail=self.thumbnail.id if self.thumbnail else self.thumbnail_id))

mautrix_telegram/example-config.yaml

@@ -13,6 +13,9 @@ homeserver:
 appservice:
     # The address that the homeserver can use to connect to this appservice.
     address: http://localhost:29317
+    # When using https:// the TLS certificate and key files for the address.
+    tls_cert: false
+    tls_key: false
 
     # The hostname and port where this appservice should listen.
     hostname: 0.0.0.0
@@ -62,6 +65,8 @@ appservice:
 
     # Community ID for bridged users (changes registration file) and rooms.
     # Must be created manually.
+    #
+    # Example: "+telegram:example.com". Set to false to disable.
     community_id: false
 
     # Authentication tokens for AS <-> HS communication. Autogenerated; do not modify.
@@ -116,6 +121,10 @@ bridge:
     - phone number
     # Maximum length of displayname
     displayname_max_length: 100
+    # Remove avatars from Telegram ghost users when removed on Telegram. This is disabled by default
+    # as there's no way to determine whether an avatar is removed or just hidden from some users. If
+    # you're on a single-user instance, this should be safe to enable.
+    allow_avatar_remove: false
 
     # Maximum number of members to sync per portal when starting up. Other members will be
     # synced when they send messages. The maximum is 10000, after which the Telegram server
@@ -191,6 +200,25 @@ bridge:
             height: 256
             background: "020202"  # only for gif
             fps: 30               # only for webm
+    # End-to-bridge encryption support options. These require matrix-nio to be installed with pip
+    # and login_shared_secret to be configured in order to get a device for the bridge bot.
+    #
+    # Additionally, https://github.com/matrix-org/synapse/pull/5758 is required if using a normal
+    # application service.
+    encryption:
+        # Allow encryption, work in group chat rooms with e2ee enabled
+        allow: false
+        # Default to encryption, force-enable encryption in all portals the bridge creates
+        # This will cause the bridge bot to be in private chats for the encryption to work properly.
+        default: false
+    # Whether or not to explicitly set the avatar and room name for private
+    # chat portal rooms. This will be implicitly enabled if encryption.default is true.
+    private_chat_portal_meta: false
+    # Whether or not the bridge should send a read receipt from the bridge bot when a message has
+    # been sent to Telegram.
+    delivery_receipts: false
+    # Whether or not delivery errors should be reported as messages in the Matrix room.
+    delivery_error_reports: false
 
     # Overrides for base power levels.
     initial_power_level_overrides:
@@ -409,7 +437,7 @@ logging:
         mau:
             level: DEBUG
         telethon:
-            level: DEBUG
+            level: INFO
         aiohttp:
             level: INFO
     root:

mautrix_telegram/matrix.py

@@ -13,14 +13,15 @@
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
-from typing import Dict, Set, Tuple, Union, Iterable, TYPE_CHECKING
+from typing import Dict, Set, Tuple, Union, Iterable, List, TYPE_CHECKING
 
 from mautrix.bridge import BaseMatrixHandler
 from mautrix.types import (Event, EventType, RoomID, UserID, EventID, ReceiptEvent, ReceiptType,
                            ReceiptEventContent, PresenceEvent, PresenceState, TypingEvent,
                            MessageEvent, StateEvent, RedactionEvent, RoomNameStateEventContent,
                            RoomAvatarStateEventContent, RoomTopicStateEventContent,
-                           MemberStateEventContent)
+                           MemberStateEventContent, EncryptedEvent, TextMessageEventContent,
+                           MessageType)
 from mautrix.errors import MatrixError
 
 from . import user as u, portal as po, puppet as pu, commands as com
@@ -47,8 +48,15 @@ class MatrixHandler(BaseMatrixHandler):
     previously_typing: Dict[RoomID, Set[UserID]]
 
     def __init__(self, context: 'Context') -> None:
+        prefix, suffix = context.config["bridge.username_template"].format(userid=":").split(":")
+        homeserver = context.config["homeserver.domain"]
+        self.user_id_prefix = f"@{prefix}"
+        self.user_id_suffix = f"{suffix}:{homeserver}"
+
         super(MatrixHandler, self).__init__(context.az, context.config, loop=context.loop,
-                                            command_processor=com.CommandProcessor(context))
+                                            command_processor=com.CommandProcessor(context),
+                                            bridge=context.bridge)
+
         self.bot = context.bot
         self.previously_typing = {}
 
@@ -104,14 +112,38 @@ class MatrixHandler(BaseMatrixHandler):
                 except MatrixError:
                     pass
             portal.mxid = room_id
+            e2be_ok = None
+            if self.config["bridge.encryption.default"] and self.e2ee:
+                e2be_ok = await self.enable_dm_encryption(portal, members=members)
             portal.save()
             inviter.register_portal(portal)
-            await intent.send_notice(room_id, "Portal to private chat created.")
+            if e2be_ok is True:
+                evt_type, content = await self.e2ee.encrypt(
+                    room_id, EventType.ROOM_MESSAGE,
+                    TextMessageEventContent(msgtype=MessageType.NOTICE,
+                                            body="Portal to private chat created and end-to-bridge"
+                                                 " encryption enabled."))
+                await intent.send_message_event(room_id, evt_type, content)
+            else:
+                message = "Portal to private chat created."
+                if e2be_ok is False:
+                    message += "\n\nWarning: Failed to enable end-to-bridge encryption"
+                await intent.send_notice(room_id, message)
         else:
             await intent.join_room(room_id)
             await intent.send_notice(room_id, "This puppet will remain inactive until a "
                                               "Telegram chat is created for this room.")
 
+    async def enable_dm_encryption(self, portal: po.Portal, members: List[UserID]) -> bool:
+        ok = await super().enable_dm_encryption(portal, members)
+        if ok:
+            try:
+                puppet = pu.Puppet.get(portal.tgid)
+                await portal.main_intent.set_room_name(portal.mxid, puppet.displayname)
+            except Exception:
+                self.log.warning(f"Failed to set room name for {portal.mxid}", exc_info=True)
+        return ok
+
     async def send_welcome_message(self, room_id: RoomID, inviter: 'u.User') -> None:
         try:
             is_management = len(await self.az.intent.get_room_members(room_id)) == 2
@@ -156,7 +188,7 @@ class MatrixHandler(BaseMatrixHandler):
                                                "messages for unauthenticated users.")
             return
 
-        self.log.debug(f"{user} joined {room_id}")
+        self.log.debug(f"{user.mxid} joined {room_id}")
         if await user.is_logged_in() or portal.has_bot:
             await portal.join_matrix(user, event_id)
 
@@ -246,7 +278,7 @@ class MatrixHandler(BaseMatrixHandler):
         if not portal:
             return
 
-        await portal.handle_matrix_deletion(sender, evt.redacts)
+        await portal.handle_matrix_deletion(sender, evt.redacts, evt.event_id)
 
     @staticmethod
     async def handle_power_levels(evt: StateEvent) -> None:
@@ -254,11 +286,12 @@ class MatrixHandler(BaseMatrixHandler):
         sender = await u.User.get_by_mxid(evt.sender).ensure_started()
         if await sender.has_full_access(allow_bot=True) and portal:
             await portal.handle_matrix_power_levels(sender, evt.content.users,
-                                                    evt.unsigned.prev_content.users)
+                                                    evt.unsigned.prev_content.users,
+                                                    evt.event_id)
 
     @staticmethod
     async def handle_room_meta(evt_type: EventType, room_id: RoomID, sender_mxid: UserID,
-                               content: RoomMetaStateEventContent) -> None:
+                               content: RoomMetaStateEventContent, event_id: EventID) -> None:
         portal = po.Portal.get_by_mxid(room_id)
         sender = await u.User.get_by_mxid(sender_mxid).ensure_started()
         if await sender.has_full_access(allow_bot=True) and portal:
@@ -269,27 +302,29 @@ class MatrixHandler(BaseMatrixHandler):
             }[evt_type]
             if not isinstance(content, content_type):
                 return
-            await handler(sender, content[content_key])
+            await handler(sender, content[content_key], event_id)
 
     @staticmethod
     async def handle_room_pin(room_id: RoomID, sender_mxid: UserID,
-                              new_events: Set[str], old_events: Set[str]) -> None:
+                              new_events: Set[str], old_events: Set[str],
+                              event_id: EventID) -> None:
         portal = po.Portal.get_by_mxid(room_id)
         sender = await u.User.get_by_mxid(sender_mxid).ensure_started()
         if await sender.has_full_access(allow_bot=True) and portal:
             events = new_events - old_events
             if len(events) > 0:
                 # New event pinned, set that as pinned in Telegram.
-                await portal.handle_matrix_pin(sender, EventID(events.pop()))
+                await portal.handle_matrix_pin(sender, EventID(events.pop()), event_id)
             elif len(new_events) == 0:
                 # All pinned events removed, remove pinned event in Telegram.
-                await portal.handle_matrix_pin(sender, None)
+                await portal.handle_matrix_pin(sender, None, event_id)
 
     @staticmethod
-    async def handle_room_upgrade(room_id: RoomID, sender: UserID, new_room_id: RoomID) -> None:
+    async def handle_room_upgrade(room_id: RoomID, sender: UserID, new_room_id: RoomID,
+                                  event_id: EventID) -> None:
         portal = po.Portal.get_by_mxid(room_id)
         if portal:
-            await portal.handle_matrix_upgrade(sender, new_room_id)
+            await portal.handle_matrix_upgrade(sender, new_room_id, event_id)
 
     async def handle_member_info_change(self, room_id: RoomID, user_id: UserID,
                                         profile: MemberStateEventContent,
@@ -355,8 +390,13 @@ class MatrixHandler(BaseMatrixHandler):
         self.previously_typing[room_id] = now_typing
 
     def filter_matrix_event(self, evt: Event) -> bool:
-        if not isinstance(evt, (RedactionEvent, MessageEvent, StateEvent)):
+        if not isinstance(evt, (RedactionEvent, MessageEvent, StateEvent, EncryptedEvent)):
             return True
+        if evt.content.get("net.maunium.telegram.puppet", False):
+            puppet = pu.Puppet.get_by_custom_mxid(evt.sender)
+            if puppet:
+                self.log.debug("Ignoring puppet-sent event %s", evt.event_id)
+                return True
         return evt.sender and (evt.sender == self.az.bot_mxid
                                or pu.Puppet.get_id_from_mxid(evt.sender) is not None)
 
@@ -377,16 +417,24 @@ class MatrixHandler(BaseMatrixHandler):
         if evt.type == EventType.ROOM_POWER_LEVELS:
             await self.handle_power_levels(evt)
         elif evt.type in (EventType.ROOM_NAME, EventType.ROOM_AVATAR, EventType.ROOM_TOPIC):
-            await self.handle_room_meta(evt.type, evt.room_id, evt.sender, evt.content)
+            await self.handle_room_meta(evt.type, evt.room_id, evt.sender, evt.content,
+                                        evt.event_id)
         elif evt.type == EventType.ROOM_PINNED_EVENTS:
             new_events = set(evt.content.pinned)
             try:
                 old_events = set(evt.unsigned.prev_content.pinned)
             except (KeyError, ValueError, TypeError, AttributeError):
                 old_events = set()
-            await self.handle_room_pin(evt.room_id, evt.sender, new_events, old_events)
+            await self.handle_room_pin(evt.room_id, evt.sender, new_events, old_events,
+                                       evt.event_id)
         elif evt.type == EventType.ROOM_TOMBSTONE:
-            await self.handle_room_upgrade(evt.room_id, evt.sender, evt.content.replacement_room)
+            await self.handle_room_upgrade(evt.room_id, evt.sender, evt.content.replacement_room,
+                                           evt.event_id)
+        elif evt.type == EventType.ROOM_ENCRYPTION:
+            portal = po.Portal.get_by_mxid(evt.room_id)
+            if portal:
+                portal.encrypted = True
+                portal.save()
 
     async def log_event_handle_duration(self, evt: Event, duration: float) -> None:
         if EVENT_TIME:

mautrix_telegram/portal/__init__.pyi

@@ -1,8 +1,8 @@
 from typing import Union
 from .base import BasePortal
-from .portal_matrix import PortalMatrix
-from .portal_metadata import PortalMetadata
-from .portal_telegram import PortalTelegram
+from .matrix import PortalMatrix
+from .metadata import PortalMetadata
+from .telegram import PortalTelegram
 from ..context import Context
 
 Portal = Union[BasePortal, PortalMatrix, PortalMetadata, PortalTelegram]

mautrix_telegram/portal/base.py

@@ -1,5 +1,5 @@
 # mautrix-telegram - A Matrix-Telegram puppeting bridge
-# Copyright (C) 2019 Tulir Asokan
+# Copyright (C) 2020 Tulir Asokan
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -13,7 +13,7 @@
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
-from typing import Awaitable, Dict, List, Optional, Tuple, Union, Any, TYPE_CHECKING
+from typing import Awaitable, Dict, List, Optional, Tuple, Union, Any, Set, TYPE_CHECKING
 from abc import ABC, abstractmethod
 import asyncio
 import logging
@@ -30,12 +30,14 @@ from telethon.tl.types import (Channel, ChannelFull, Chat, ChatFull, ChatInviteE
 
 from mautrix.errors import MatrixRequestError, IntentError
 from mautrix.appservice import AppService, IntentAPI
-from mautrix.types import RoomID, RoomAlias, UserID, EventType, PowerLevelStateEventContent
+from mautrix.types import (RoomID, RoomAlias, UserID, EventID, EventType, MessageEventContent,
+                           PowerLevelStateEventContent)
 from mautrix.util.simple_template import SimpleTemplate
+from mautrix.util.logging import TraceLogger
 
 from ..types import TelegramID
 from ..context import Context
-from ..db import Portal as DBPortal
+from ..db import Portal as DBPortal, Message as DBMessage
 from .. import puppet as p, user as u, util
 from .deduplication import PortalDedup
 from .send_lock import PortalSendLock
@@ -44,6 +46,7 @@ if TYPE_CHECKING:
     from ..bot import Bot
     from ..abstract_user import AbstractUser
     from ..config import Config
+    from ..matrix import MatrixHandler
     from . import Portal
 
 TypeParticipant = Union[TypeChatParticipant, TypeChannelParticipant]
@@ -54,10 +57,11 @@ config: Optional['Config'] = None
 
 
 class BasePortal(ABC):
-    base_log: logging.Logger = logging.getLogger("mau.portal")
+    base_log: TraceLogger = logging.getLogger("mau.portal")
     az: AppService = None
     bot: 'Bot' = None
     loop: asyncio.AbstractEventLoop = None
+    matrix: 'MatrixHandler' = None
 
     # Config cache
     filter_mode: str = None
@@ -67,6 +71,7 @@ class BasePortal(ABC):
     sync_channel_members: bool = True
     sync_matrix_state: bool = True
     public_portals: bool = False
+    private_chat_portal_meta: bool = False
 
     alias_template: SimpleTemplate[str]
     hs_domain: str
@@ -85,8 +90,11 @@ class BasePortal(ABC):
     about: Optional[str]
     photo_id: Optional[str]
     local_config: Dict[str, Any]
+    encrypted: bool
     deleted: bool
-    log: logging.Logger
+    backfilling: bool
+    backfill_leave: Optional[Set[IntentAPI]]
+    log: TraceLogger
 
     alias: Optional[RoomAlias]
 
@@ -100,7 +108,8 @@ class BasePortal(ABC):
                  mxid: Optional[RoomID] = None, username: Optional[str] = None,
                  megagroup: Optional[bool] = False, title: Optional[str] = None,
                  about: Optional[str] = None, photo_id: Optional[str] = None,
-                 local_config: Optional[str] = None, db_instance: DBPortal = None) -> None:
+                 local_config: Optional[str] = None, encrypted: Optional[bool] = False,
+                 db_instance: DBPortal = None) -> None:
         self.mxid = mxid
         self.tgid = tgid
         self.tg_receiver = tg_receiver or tgid
@@ -111,10 +120,13 @@ class BasePortal(ABC):
         self.about = about
         self.photo_id = photo_id
         self.local_config = json.loads(local_config or "{}")
+        self.encrypted = encrypted
         self._db_instance = db_instance
         self._main_intent = None
         self.deleted = False
         self.log = self.base_log.getChild(self.tgid_log if self.tgid else self.mxid)
+        self.backfilling = False
+        self.backfill_leave = None
 
         self.dedup = PortalDedup(self)
         self.send_lock = PortalSendLock()
@@ -124,7 +136,7 @@ class BasePortal(ABC):
         if mxid:
             self.by_mxid[mxid] = self
 
-    # region Propegrties
+    # region Properties
 
     @property
     def tgid_full(self) -> Tuple[TelegramID, TelegramID]:
@@ -233,8 +245,7 @@ class BasePortal(ABC):
             return await user.client.get_entity(self.peer)
         except ValueError:
             if user.is_bot:
-                self.log.warning(f"Could not find entity with bot {user.tgid}. "
-                                 "Failing...")
+                self.log.warning(f"Could not find entity with bot {user.tgid}. Failing...")
                 raise
             self.log.warning(f"Could not find entity with user {user.tgid}. "
                              "falling back to get_dialogs.")
@@ -273,8 +284,8 @@ class BasePortal(ABC):
                 authenticated.append(user)
         return authenticated
 
-    @staticmethod
-    async def cleanup_room(intent: IntentAPI, room_id: RoomID, message: str,
+    @classmethod
+    async def cleanup_room(cls, intent: IntentAPI, room_id: RoomID, message: str,
                            puppets_only: bool = False) -> None:
         try:
             members = await intent.get_room_members(room_id)
@@ -293,7 +304,7 @@ class BasePortal(ABC):
         try:
             await intent.leave_room(room_id)
         except (MatrixRequestError, IntentError):
-            self.log.warning("Failed to leave room when cleaning up room", exc_info=True)
+            cls.log.warning(f"Failed to leave room {room_id} when cleaning up room", exc_info=True)
 
     async def cleanup_portal(self, message: str, puppets_only: bool = False) -> None:
         if self.username:
@@ -324,12 +335,12 @@ class BasePortal(ABC):
         return DBPortal(tgid=self.tgid, tg_receiver=self.tg_receiver, peer_type=self.peer_type,
                         mxid=self.mxid, username=self.username, megagroup=self.megagroup,
                         title=self.title, about=self.about, photo_id=self.photo_id,
-                        config=json.dumps(self.local_config))
+                        config=json.dumps(self.local_config), encrypted=self.encrypted)
 
     def save(self) -> None:
         self.db_instance.edit(mxid=self.mxid, username=self.username, title=self.title,
                               about=self.about, photo_id=self.photo_id, megagroup=self.megagroup,
-                              config=json.dumps(self.local_config))
+                              config=json.dumps(self.local_config), encrypted=self.encrypted)
 
     def delete(self) -> None:
         try:
@@ -342,15 +353,16 @@ class BasePortal(ABC):
             pass
         if self._db_instance:
             self._db_instance.delete()
+        DBMessage.delete_all(self.mxid)
         self.deleted = True
 
     @classmethod
     def from_db(cls, db_portal: DBPortal) -> 'Portal':
         return cls(tgid=db_portal.tgid, tg_receiver=db_portal.tg_receiver,
-                   peer_type=db_portal.peer_type, mxid=db_portal.mxid,
-                   username=db_portal.username, megagroup=db_portal.megagroup,
-                   title=db_portal.title, about=db_portal.about, photo_id=db_portal.photo_id,
-                   local_config=db_portal.config, db_instance=db_portal)
+                   peer_type=db_portal.peer_type, mxid=db_portal.mxid, username=db_portal.username,
+                   megagroup=db_portal.megagroup, title=db_portal.title, about=db_portal.about,
+                   photo_id=db_portal.photo_id, local_config=db_portal.config,
+                   encrypted=db_portal.encrypted, db_instance=db_portal)
 
     # endregion
     # region Class instance lookup
@@ -392,6 +404,8 @@ class BasePortal(ABC):
     @classmethod
     def get_by_tgid(cls, tgid: TelegramID, tg_receiver: Optional[TelegramID] = None,
                     peer_type: str = None) -> Optional['Portal']:
+        if peer_type == "user" and tg_receiver is None:
+            raise ValueError("tg_receiver is required when peer_type is \"user\"")
         tg_receiver = tg_receiver or tgid
         tgid_full = (tgid, tg_receiver)
         try:
@@ -447,6 +461,15 @@ class BasePortal(ABC):
                                type_name if create else None)
 
     # endregion
+
+    async def _send_message(self, intent: IntentAPI, content: MessageEventContent,
+                            event_type: EventType = EventType.ROOM_MESSAGE, **kwargs) -> EventID:
+        if self.encrypted and self.matrix.e2ee:
+            if intent.api.is_real_user:
+                content[intent.api.real_user_content_key] = True
+            event_type, content = await self.matrix.e2ee.encrypt(self.mxid, event_type, content)
+        return await intent.send_message_event(self.mxid, event_type, content, **kwargs)
+
     # region Abstract methods (cross-called in matrix/metadata/telegram classes)
 
     @abstractmethod
@@ -488,7 +511,12 @@ class BasePortal(ABC):
 
     @abstractmethod
     def handle_matrix_power_levels(self, sender: 'u.User', new_levels: Dict[UserID, int],
-                                   old_levels: Dict[UserID, int]) -> Awaitable[None]:
+                                   old_levels: Dict[UserID, int], event_id: Optional[EventID]
+                                   ) -> Awaitable[None]:
+        pass
+
+    @abstractmethod
+    def backfill(self, source: 'AbstractUser') -> Awaitable[None]:
         pass
 
     # endregion
@@ -497,10 +525,12 @@ class BasePortal(ABC):
 def init(context: Context) -> None:
     global config
     BasePortal.az, config, BasePortal.loop, BasePortal.bot = context.core
+    BasePortal.matrix = context.mx
     BasePortal.max_initial_member_sync = config["bridge.max_initial_member_sync"]
     BasePortal.sync_channel_members = config["bridge.sync_channel_members"]
     BasePortal.sync_matrix_state = config["bridge.sync_matrix_state"]
     BasePortal.public_portals = config["bridge.public_portals"]
+    BasePortal.private_chat_portal_meta = config["bridge.private_chat_portal_meta"]
     BasePortal.filter_mode = config["bridge.filter.mode"]
     BasePortal.filter_list = config["bridge.filter.list"]
     BasePortal.hs_domain = config["homeserver.domain"]

mautrix_telegram/portal/matrix.py

@@ -1,5 +1,5 @@
 # mautrix-telegram - A Matrix-Telegram puppeting bridge
-# Copyright (C) 2019 Tulir Asokan
+# Copyright (C) 2020 Tulir Asokan
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -25,7 +25,8 @@ from telethon.tl.functions.messages import (EditChatPhotoRequest, EditChatTitleR
                                             EditChatAboutRequest)
 from telethon.tl.functions.channels import EditPhotoRequest, EditTitleRequest, JoinChannelRequest
 from telethon.errors import (ChatNotModifiedError, PhotoExtInvalidError,
-                             PhotoInvalidDimensionsError, PhotoSaveFileInvalidError)
+                             PhotoInvalidDimensionsError, PhotoSaveFileInvalidError,
+                             RPCError)
 from telethon.tl.patched import Message, MessageService
 from telethon.tl.types import (
     DocumentAttributeFilename, DocumentAttributeImageSize, GeoPoint,
@@ -50,6 +51,11 @@ if TYPE_CHECKING:
     from ..tgclient import MautrixTelegramClient
     from ..config import Config
 
+try:
+    from nio.crypto import decrypt_attachment
+except ImportError:
+    decrypt_attachment = None
+
 TypeMessage = Union[Message, MessageService]
 
 config: Optional['Config'] = None
@@ -223,6 +229,13 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
             message, entities = None, None
         return message, entities
 
+    async def _send_delivery_receipt(self, event_id: EventID) -> None:
+        if event_id and config["bridge.delivery_receipts"]:
+            try:
+                await self.az.intent.mark_read(self.mxid, event_id)
+            except Exception:
+                self.log.exception("Failed to send delivery receipt for %s", event_id)
+
     async def _handle_matrix_text(self, sender_id: TelegramID, event_id: EventID,
                                   space: TelegramID, client: 'MautrixTelegramClient',
                                   content: TextMessageEventContent, reply_to: TelegramID) -> None:
@@ -240,6 +253,7 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
                                                  parse_mode=self._matrix_event_to_entities,
                                                  link_preview=lp)
             self._add_telegram_message_to_db(event_id, space, 0, response)
+        await self._send_delivery_receipt(event_id)
 
     async def _handle_matrix_file(self, sender_id: TelegramID, event_id: EventID,
                                   space: TelegramID, client: 'MautrixTelegramClient',
@@ -250,11 +264,20 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
         file_name = content["net.maunium.telegram.internal.filename"]
         max_image_size = config["bridge.image_as_file_size"] * 1000 ** 2
 
-        if config["bridge.parallel_file_transfer"]:
+        if config["bridge.parallel_file_transfer"] and content.url:
             file_handle, file_size = await parallel_transfer_to_telegram(client, self.main_intent,
                                                                          content.url, sender_id)
         else:
-            file = await self.main_intent.download_media(content.url)
+            if content.file:
+                if not decrypt_attachment:
+                    self.log.warning(f"Can't bridge encrypted media event {event_id}:"
+                                     " matrix-nio not installed")
+                    return
+                file = await self.main_intent.download_media(content.file.url)
+                file = decrypt_attachment(file, content.file.key.key,
+                                          content.file.hashes.get("sha256"), content.file.iv)
+            else:
+                file = await self.main_intent.download_media(content.url)
 
             if content.msgtype == MessageType.STICKER:
                 if mime != "image/gif":
@@ -293,6 +316,7 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
                 response = await client.send_media(self.peer, media, reply_to=reply_to,
                                                    caption=caption, entities=entities)
             self._add_telegram_message_to_db(event_id, space, 0, response)
+        await self._send_delivery_receipt(event_id)
 
     async def _matrix_document_edit(self, client: 'MautrixTelegramClient',
                                     content: MessageEventContent, space: TelegramID,
@@ -303,6 +327,7 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
                 response = await client.edit_message(self.peer, orig_msg.tgid,
                                                      caption, file=media)
                 self._add_telegram_message_to_db(event_id, space, -1, response)
+                await self._send_delivery_receipt(event_id)
                 return True
         return False
 
@@ -325,10 +350,11 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
             response = await client.send_media(self.peer, media, reply_to=reply_to,
                                                caption=caption, entities=entities)
             self._add_telegram_message_to_db(event_id, space, 0, response)
+        await self._send_delivery_receipt(event_id)
 
     def _add_telegram_message_to_db(self, event_id: EventID, space: TelegramID,
                                     edit_index: int, response: TypeMessage) -> None:
-        self.log.debug("Handled Matrix message: %s", response)
+        self.log.trace("Handled Matrix message: %s", response)
         self.dedup.check(response, (event_id, space), force_hash=edit_index != 0)
         if edit_index < 0:
             prev_edit = DBMessage.get_one_by_tgid(TelegramID(response.id), space, -1)
@@ -340,17 +366,26 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
             mxid=event_id,
             edit_index=edit_index).insert()
 
+    async def _send_bridge_error(self, msg: str) -> None:
+        if config["bridge.delivery_error_reports"]:
+            await self._send_message(self.main_intent,
+                                     TextMessageEventContent(msgtype=MessageType.NOTICE, body=msg))
+
     async def handle_matrix_message(self, sender: 'u.User', content: MessageEventContent,
                                     event_id: EventID) -> None:
+        try:
+            await self._handle_matrix_message(sender, content, event_id)
+        except RPCError as e:
+            if config["bridge.delivery_error_reports"]:
+                await self._send_bridge_error(f"\u26a0 Your message may not have been bridged: {e}")
+            raise
+
+    async def _handle_matrix_message(self, sender: 'u.User', content: MessageEventContent,
+                                     event_id: EventID) -> None:
         if not content.body or not content.msgtype:
             self.log.debug(f"Ignoring message {event_id} in {self.mxid} without body or msgtype")
             return
 
-        puppet = p.Puppet.get_by_custom_mxid(sender.mxid)
-        if puppet and content.get("net.maunium.telegram.puppet", False):
-            self.log.debug("Ignoring puppet-sent message by confirmed puppet user %s", sender.mxid)
-            return
-
         logged_in = not await sender.needs_relaybot(self)
         client = sender.client if logged_in else self.bot.client
         sender_id = sender.tgid if logged_in else self.bot.tgid
@@ -389,10 +424,10 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
             await self._handle_matrix_file(sender_id, event_id, space, client, content, reply_to,
                                            caption_content)
         else:
-            self.log.debug(f"Unhandled Matrix event: {content}")
+            self.log.trace("Unhandled Matrix event: %s", content)
 
-    async def handle_matrix_pin(self, sender: 'u.User',
-                                pinned_message: Optional[EventID]) -> None:
+    async def handle_matrix_pin(self, sender: 'u.User', pinned_message: Optional[EventID],
+                                pin_event_id: EventID) -> None:
         if self.peer_type != "chat" and self.peer_type != "channel":
             return
         try:
@@ -405,10 +440,12 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
                     self.log.warning(f"Could not find pinned {pinned_message} in {self.mxid}")
                     return
                 await sender.client(UpdatePinnedMessageRequest(peer=self.peer, id=message.tgid))
+            await self._send_delivery_receipt(pin_event_id)
         except ChatNotModifiedError:
             pass
 
-    async def handle_matrix_deletion(self, deleter: 'u.User', event_id: EventID) -> None:
+    async def handle_matrix_deletion(self, deleter: 'u.User', event_id: EventID,
+                                     redaction_event_id: EventID) -> None:
         real_deleter = deleter if not await deleter.needs_relaybot(self) else self.bot
         space = self.tgid if self.peer_type == "channel" else real_deleter.tgid
         message = DBMessage.get_by_mxid(event_id, self.mxid, space)
@@ -416,6 +453,7 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
             return
         if message.edit_index == 0:
             await real_deleter.client.delete_messages(self.peer, [message.tgid])
+            await self._send_delivery_receipt(redaction_event_id)
         else:
             self.log.debug(f"Ignoring deletion of edit event {message.mxid} in {message.mx_room}")
 
@@ -430,7 +468,8 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
                                        pin_messages=moderator, add_admins=admin)
 
     async def handle_matrix_power_levels(self, sender: 'u.User', new_users: Dict[UserID, int],
-                                         old_users: Dict[UserID, int]) -> None:
+                                         old_users: Dict[UserID, int], event_id: Optional[EventID]
+                                         ) -> None:
         # TODO handle all power level changes and bridge exact admin rights to supergroups/channels
         for user, level in new_users.items():
             if not user or user == self.main_intent.mxid or user == sender.mxid:
@@ -446,15 +485,16 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
             if user not in old_users or level != old_users[user]:
                 await self._update_telegram_power_level(sender, user_id, level)
 
-    async def handle_matrix_about(self, sender: 'u.User', about: str) -> None:
+    async def handle_matrix_about(self, sender: 'u.User', about: str, event_id: EventID) -> None:
         if self.peer_type not in ("chat", "channel"):
             return
         peer = await self.get_input_entity(sender)
         await sender.client(EditChatAboutRequest(peer=peer, about=about))
         self.about = about
         self.save()
+        await self._send_delivery_receipt(event_id)
 
-    async def handle_matrix_title(self, sender: 'u.User', title: str) -> None:
+    async def handle_matrix_title(self, sender: 'u.User', title: str, event_id: EventID) -> None:
         if self.peer_type not in ("chat", "channel"):
             return
 
@@ -466,8 +506,10 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
         self.dedup.register_outgoing_actions(response)
         self.title = title
         self.save()
+        await self._send_delivery_receipt(event_id)
 
-    async def handle_matrix_avatar(self, sender: 'u.User', url: ContentURI) -> None:
+    async def handle_matrix_avatar(self, sender: 'u.User', url: ContentURI, event_id: EventID
+                                   ) -> None:
         if self.peer_type not in ("chat", "channel"):
             # Invalid peer type
             return
@@ -493,8 +535,10 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
                 self.photo_id = f"{size.location.volume_id}-{size.location.local_id}"
                 self.save()
                 break
+        await self._send_delivery_receipt(event_id)
 
-    async def handle_matrix_upgrade(self, sender: UserID, new_room: RoomID) -> None:
+    async def handle_matrix_upgrade(self, sender: UserID, new_room: RoomID, event_id: EventID
+                                    ) -> None:
         _, server = self.main_intent.parse_user_id(sender)
         old_room = self.mxid
         self.migrate_and_save_matrix(new_room)
@@ -521,6 +565,7 @@ class PortalMatrix(BasePortal, MautrixBasePortal, ABC):
             return
         await self.update_matrix_room(user, entity, direct=self.peer_type == "user")
         self.log.info(f"{sender} upgraded room from {old_room} to {self.mxid}")
+        await self._send_delivery_receipt(event_id)
 
     def migrate_and_save_matrix(self, new_id: RoomID) -> None:
         try:

mautrix_telegram/portal/metadata.py

@@ -1,5 +1,5 @@
 # mautrix-telegram - A Matrix-Telegram puppeting bridge
-# Copyright (C) 2019 Tulir Asokan
+# Copyright (C) 2020 Tulir Asokan
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -13,7 +13,7 @@
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
-from typing import List, Optional, Tuple, Union, Callable, TYPE_CHECKING
+from typing import List, Optional, Tuple, Union, Callable, Awaitable, TYPE_CHECKING
 from abc import ABC
 import asyncio
 
@@ -26,12 +26,13 @@ from telethon.tl.types import (
     Channel, ChatBannedRights, ChannelParticipantsRecent, ChannelParticipantsSearch, ChatPhoto,
     PhotoEmpty, InputChannel, InputUser, ChatPhotoEmpty, PeerUser, Photo, TypeChat, TypeInputPeer,
     TypeUser, User, InputPeerPhotoFileLocation, ChatParticipantAdmin, ChannelParticipantAdmin,
-    ChatParticipantCreator, ChannelParticipantCreator)
+    ChatParticipantCreator, ChannelParticipantCreator, UserProfilePhoto, UserProfilePhotoEmpty)
 
 from mautrix.errors import MForbidden
 from mautrix.types import (RoomID, UserID, RoomCreatePreset, EventType, Membership, Member,
-                           PowerLevelStateEventContent, RoomAlias)
-from mautrix.appservice import IntentAPI
+                           PowerLevelStateEventContent, RoomTopicStateEventContent,
+                           RoomNameStateEventContent, RoomAvatarStateEventContent,
+                           StateEventContent)
 
 from ..types import TelegramID
 from ..context import Context
@@ -155,7 +156,7 @@ class PortalMetadata(BasePortal, ABC):
         if levels.get_user_level(self.main_intent.mxid) == 100:
             levels = self._get_base_power_levels(levels, entity)
             await self.main_intent.set_power_levels(self.mxid, levels)
-        await self.handle_matrix_power_levels(source, levels.users, {})
+        await self.handle_matrix_power_levels(source, levels.users, {}, None)
 
     async def invite_telegram(self, source: 'u.User',
                               puppet: Union[p.Puppet, 'AbstractUser']) -> None:
@@ -218,10 +219,17 @@ class PortalMetadata(BasePortal, ABC):
                 puppet = p.Puppet.get(self.tgid)
             await puppet.update_info(user, entity)
             await puppet.intent_for(self).join_room(self.mxid)
+            if self.encrypted or self.private_chat_portal_meta:
+                # The bridge bot needs to join for e2ee, but that messes up the default name
+                # generation. If/when canonical DMs happen, this might not be necessary anymore.
+                changed = await self._update_title(puppet.displayname)
+                changed = await self._update_avatar(user, entity.photo) or changed
+                if changed:
+                    self.save()
         if self.sync_matrix_state:
             await self.sync_matrix_members()
 
-    async def create_matrix_room(self, user: 'AbstractUser', entity: TypeChat = None,
+    async def create_matrix_room(self, user: 'AbstractUser', entity: Union[TypeChat, User] = None,
                                  invites: InviteList = None, update_if_exists: bool = True,
                                  synchronous: bool = False) -> Optional[str]:
         if self.mxid:
@@ -245,10 +253,13 @@ class PortalMetadata(BasePortal, ABC):
             except Exception:
                 self.log.exception("Fatal error creating Matrix room")
 
-    async def _create_matrix_room(self, user: 'AbstractUser', entity: TypeChat, invites: InviteList
-                                  ) -> Optional[RoomID]:
+    async def _create_matrix_room(self, user: 'AbstractUser', entity: Union[TypeChat, User],
+                                  invites: InviteList) -> Optional[RoomID]:
         direct = self.peer_type == "user"
 
+        if invites is None:
+            invites = []
+
         if self.mxid:
             return self.mxid
 
@@ -257,7 +268,7 @@ class PortalMetadata(BasePortal, ABC):
 
         if not entity:
             entity = await self.get_entity(user)
-            self.log.debug(f"Fetched data: {entity}")
+            self.log.trace("Fetched data: %s", entity)
 
         self.log.debug("Creating room")
 
@@ -271,6 +282,8 @@ class PortalMetadata(BasePortal, ABC):
             self.about = "Your Telegram cloud storage chat"
 
         puppet = p.Puppet.get(self.tgid) if direct else None
+        if puppet:
+            await puppet.update_info(user, entity)
         self._main_intent = puppet.intent_for(self) if direct else self.az.intent
 
         if self.peer_type == "channel":
@@ -304,10 +317,41 @@ class PortalMetadata(BasePortal, ABC):
             for invite in invites:
                 power_levels.users.setdefault(invite, 100)
             self.title = puppet.displayname
+        bridge_info = {
+            "bridgebot": self.az.bot_mxid,
+            "creator": self.main_intent.mxid,
+            "protocol": {
+                "id": "telegram",
+                "displayname": "Telegram",
+                "avatar_url": config["appservice.bot_avatar"],
+            },
+            "channel": {
+                "id": self.tgid
+            }
+        }
         initial_state = [{
             "type": EventType.ROOM_POWER_LEVELS.serialize(),
             "content": power_levels.serialize(),
+        }, {
+            "type": "m.bridge",
+            "state_key": f"net.maunium.telegram://telegram/{self.tgid}",
+            "content": bridge_info
+        }, {
+            # TODO remove this once https://github.com/matrix-org/matrix-doc/pull/2346 is in spec
+            "type": "uk.half-shot.bridge",
+            "state_key": f"net.maunium.telegram://telegram/{self.tgid}",
+            "content": bridge_info
         }]
+        if config["bridge.encryption.default"] and self.matrix.e2ee:
+            self.encrypted = True
+            initial_state.append({
+                "type": "m.room.encryption",
+                "content": {"algorithm": "m.megolm.v1.aes-sha2"},
+            })
+            if direct:
+                invites.append(self.az.bot_mxid)
+        if direct and (self.encrypted or self.private_chat_portal_meta):
+            self.title = puppet.displayname
         if config["appservice.community_id"]:
             initial_state.append({
                 "type": "m.room.related_groups",
@@ -325,6 +369,16 @@ class PortalMetadata(BasePortal, ABC):
         if not room_id:
             raise Exception(f"Failed to create room")
 
+        if self.encrypted and self.matrix.e2ee:
+            members = [self.main_intent.mxid]
+            if direct:
+                try:
+                    await self.az.intent.join_room_by_id(room_id)
+                    members += [self.az.intent.mxid]
+                except Exception:
+                    self.log.warning(f"Failed to add bridge bot to new private chat {room_id}")
+            await self.matrix.e2ee.add_room(room_id, members=members, encrypted=True)
+
         self.mxid = RoomID(room_id)
         self.by_mxid[self.mxid] = self
         self.save()
@@ -362,7 +416,7 @@ class PortalMetadata(BasePortal, ABC):
             levels.kick = overrides.get("kick", 50)
             levels.redact = overrides.get("redact", 50)
             levels.invite = overrides.get("invite", 50 if dbr.invite_users else 0)
-            levels.events[EventType.ROOM_ENCRYPTED] = 99
+            levels.events[EventType.ROOM_ENCRYPTION] = 99
             levels.events[EventType.ROOM_TOMBSTONE] = 99
             levels.events[EventType.ROOM_NAME] = 50 if dbr.change_info else 0
             levels.events[EventType.ROOM_AVATAR] = 50 if dbr.change_info else 0
@@ -412,7 +466,7 @@ class PortalMetadata(BasePortal, ABC):
             return False
         changed = False
         admin_power_level = min(75 if self.peer_type == "channel" else 50, bot_level)
-        if levels.events[EventType.ROOM_POWER_LEVELS] != admin_power_level:
+        if levels.get_event_level(EventType.ROOM_POWER_LEVELS) != admin_power_level:
             changed = True
             levels.events[EventType.ROOM_POWER_LEVELS] = admin_power_level
 
@@ -542,12 +596,12 @@ class PortalMetadata(BasePortal, ABC):
             self.log.warning("Called update_info() for direct chat portal")
             return
 
+        changed = False
         self.log.debug("Updating info")
         try:
             if not entity:
                 entity = await self.get_entity(user)
-                self.log.debug(f"Fetched data: {entity}")
-            changed = False
+                self.log.trace("Fetched data: %s", entity)
 
             if self.peer_type == "channel":
                 changed = self.megagroup != entity.megagroup or changed
@@ -585,15 +639,18 @@ class PortalMetadata(BasePortal, ABC):
             self.save()
         return True
 
-    async def _try_use_intent(self, sender: Optional['p.Puppet'],
-                              action: Callable[[IntentAPI], None]) -> None:
+    async def _try_set_state(self, sender: Optional['p.Puppet'], evt_type: EventType,
+                             content: StateEventContent) -> None:
         if sender:
             try:
-                await action(sender.intent_for(self))
+                intent = sender.intent_for(self)
+                if sender.is_real_user:
+                    content[self.az.real_user_content_key] = True
+                await intent.send_state_event(self.mxid, evt_type, content)
             except MForbidden:
-                await action(self.main_intent)
+                await self.main_intent.send_state_event(self.mxid, evt_type, content)
         else:
-            await action(self.main_intent)
+            await self.main_intent.send_state_event(self.mxid, evt_type, content)
 
     async def _update_about(self, about: str, sender: Optional['p.Puppet'] = None,
                             save: bool = False) -> bool:
@@ -601,8 +658,8 @@ class PortalMetadata(BasePortal, ABC):
             return False
 
         self.about = about
-        await self._try_use_intent(sender,
-                                   lambda intent: intent.set_room_topic(self.mxid, self.about))
+        await self._try_set_state(sender, EventType.ROOM_TOPIC,
+                                  RoomTopicStateEventContent(topic=self.about))
         if save:
             self.save()
         return True
@@ -613,42 +670,45 @@ class PortalMetadata(BasePortal, ABC):
             return False
 
         self.title = title
-        await self._try_use_intent(sender,
-                                   lambda intent: intent.set_room_name(self.mxid, self.title))
+        await self._try_set_state(sender, EventType.ROOM_NAME,
+                                  RoomNameStateEventContent(name=self.title))
         if save:
             self.save()
         return True
 
     async def _update_avatar(self, user: 'AbstractUser', photo: TypeChatPhoto,
                              sender: Optional['p.Puppet'] = None, save: bool = False) -> bool:
-        if isinstance(photo, ChatPhoto):
+        if isinstance(photo, (ChatPhoto, UserProfilePhoto)):
             loc = InputPeerPhotoFileLocation(
                 peer=await self.get_input_entity(user),
                 local_id=photo.photo_big.local_id,
                 volume_id=photo.photo_big.volume_id,
                 big=True
             )
-            photo_id = f"{loc.volume_id}-{loc.local_id}"
+            photo_id = (f"{loc.volume_id}-{loc.local_id}" if isinstance(photo, ChatPhoto)
+                        else photo.photo_id)
         elif isinstance(photo, Photo):
             loc, largest = self._get_largest_photo_size(photo)
             photo_id = f"{largest.location.volume_id}-{largest.location.local_id}"
-        elif isinstance(photo, (ChatPhotoEmpty, PhotoEmpty)):
+        elif isinstance(photo, (UserProfilePhotoEmpty, ChatPhotoEmpty, PhotoEmpty, type(None))):
             photo_id = ""
             loc = None
         else:
             raise ValueError(f"Unknown photo type {type(photo)}")
+        if self.peer_type == "user" and not photo_id and not config["bridge.allow_avatar_remove"]:
+            return False
         if self.photo_id != photo_id:
             if not photo_id:
-                await self._try_use_intent(sender,
-                                           lambda intent: intent.set_room_avatar(self.mxid, None))
+                await self._try_set_state(sender, EventType.ROOM_AVATAR,
+                                          RoomAvatarStateEventContent(url=None))
                 self.photo_id = ""
                 if save:
                     self.save()
                 return True
             file = await util.transfer_file_to_matrix(user.client, self.main_intent, loc)
             if file:
-                await self._try_use_intent(sender, lambda intent: intent.set_room_avatar(self.mxid,
-                                                                                         file.mxc))
+                await self._try_set_state(sender, EventType.ROOM_AVATAR,
+                                          RoomAvatarStateEventContent(url=file.mxc))
                 self.photo_id = photo_id
                 if save:
                     self.save()

mautrix_telegram/portal/telegram.py

@@ -1,5 +1,5 @@
 # mautrix-telegram - A Matrix-Telegram puppeting bridge
-# Copyright (C) 2019 Tulir Asokan
+# Copyright (C) 2020 Tulir Asokan
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -14,7 +14,6 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 from typing import Awaitable, Dict, List, Optional, Tuple, Union, NamedTuple, TYPE_CHECKING
-from html import escape as escape_html
 from abc import ABC
 import random
 import mimetypes
@@ -30,16 +29,16 @@ from telethon.tl.types import (
     MessageMediaPoll, MessageActionChannelCreate, MessageActionChatAddUser,
     MessageActionChatCreate, MessageActionChatDeletePhoto, MessageActionChatDeleteUser,
     MessageActionChatEditPhoto, MessageActionChatEditTitle, MessageActionChatJoinedByLink,
-    MessageActionChatMigrateTo, MessageActionPinMessage, MessageActionGameScore,
-    MessageMediaDocument, MessageMediaGeo, MessageMediaPhoto, MessageMediaUnsupported,
-    MessageMediaGame, PeerUser, PhotoCachedSize, TypeChannelParticipant, TypeChatParticipant,
-    TypeDocumentAttribute, TypeMessageAction, TypePhotoSize, PhotoSize, UpdateChatUserTyping,
-    UpdateUserTyping, MessageEntityPre, ChatPhotoEmpty)
+    MessageActionChatMigrateTo, MessageActionGameScore, MessageMediaDocument, MessageMediaGeo,
+    MessageMediaPhoto, MessageMediaDice, MessageMediaGame, MessageMediaUnsupported, PeerUser,
+    PhotoCachedSize, TypeChannelParticipant, TypeChatParticipant, TypeDocumentAttribute,
+    TypeMessageAction, TypePhotoSize, PhotoSize, UpdateChatUserTyping, UpdateUserTyping,
+    MessageEntityPre, ChatPhotoEmpty)
 
 from mautrix.appservice import IntentAPI
 from mautrix.types import (EventID, UserID, ImageInfo, ThumbnailInfo, RelatesTo, MessageType,
                            EventType, MediaMessageEventContent, TextMessageEventContent,
-                           LocationMessageEventContent, Format)
+                           LocationMessageEventContent, Format, MessageEventContent)
 
 from ..types import TelegramID
 from ..db import Message as DBMessage, TelegramFile as DBTelegramFile
@@ -73,9 +72,10 @@ class PortalTelegram(BasePortal, ABC):
         return None
 
     async def handle_telegram_photo(self, source: 'AbstractUser', intent: IntentAPI, evt: Message,
-                                    relates_to: Dict = None) -> Optional[EventID]:
+                                    relates_to: RelatesTo = None) -> Optional[EventID]:
         loc, largest_size = self._get_largest_photo_size(evt.media.photo)
-        file = await util.transfer_file_to_matrix(source.client, intent, loc)
+        file = await util.transfer_file_to_matrix(source.client, intent, loc,
+                                                  encrypt=self.encrypted)
         if not file:
             return None
         if self.get_config("inline_images") and (evt.message
@@ -86,22 +86,26 @@ class PortalTelegram(BasePortal, ABC):
                 prefix_text="Inline image: ")
             content.external_url = self._get_external_url(evt)
             await intent.set_typing(self.mxid, is_typing=False)
-            return await intent.send_message(self.mxid, content, timestamp=evt.date)
+            return await self._send_message(intent, content, timestamp=evt.date)
         info = ImageInfo(
             height=largest_size.h, width=largest_size.w, orientation=0, mimetype=file.mime_type,
             size=(len(largest_size.bytes) if (isinstance(largest_size, PhotoCachedSize))
                   else largest_size.size))
         name = f"image{sane_mimetypes.guess_extension(file.mime_type)}"
         await intent.set_typing(self.mxid, is_typing=False)
-        content = MediaMessageEventContent(url=file.mxc, msgtype=MessageType.IMAGE, info=info,
+        content = MediaMessageEventContent(msgtype=MessageType.IMAGE, info=info,
                                            body=name, relates_to=relates_to,
                                            external_url=self._get_external_url(evt))
-        result = await intent.send_message(self.mxid, content, timestamp=evt.date)
+        if file.decryption_info:
+            content.file = file.decryption_info
+        else:
+            content.url = file.mxc
+        result = await self._send_message(intent, content, timestamp=evt.date)
         if evt.message:
             caption_content = await formatter.telegram_to_matrix(evt, source, self.main_intent,
                                                                  no_reply_fallback=True)
             caption_content.external_url = content.external_url
-            result = await intent.send_message(self.mxid, caption_content, timestamp=evt.date)
+            result = await self._send_message(intent, caption_content, timestamp=evt.date)
         return result
 
     @staticmethod
@@ -134,6 +138,8 @@ class PortalTelegram(BasePortal, ABC):
         generic_types = ("text/plain", "application/octet-stream")
         if file.mime_type in generic_types and document.mime_type not in generic_types:
             mime_type = document.mime_type or file.mime_type
+        elif file.mime_type == 'application/ogg':
+            mime_type = 'audio/ogg'
         else:
             mime_type = file.mime_type or document.mime_type
         info = ImageInfo(size=file.size, mimetype=mime_type)
@@ -146,11 +152,21 @@ class PortalTelegram(BasePortal, ABC):
             info.width, info.height = attrs.width, attrs.height
 
         if file.thumbnail:
-            info.thumbnail_url = file.thumbnail.mxc
+            if file.thumbnail.decryption_info:
+                info.thumbnail_file = file.thumbnail.decryption_info
+            else:
+                info.thumbnail_url = file.thumbnail.mxc
             info.thumbnail_info = ThumbnailInfo(mimetype=file.thumbnail.mime_type,
                                                 height=file.thumbnail.height or thumb_size.h,
                                                 width=file.thumbnail.width or thumb_size.w,
                                                 size=file.thumbnail.size)
+        else:
+            # This is a hack for bad clients like Riot iOS that require a thumbnail
+            if file.decryption_info:
+                info.thumbnail_file = file.decryption_info
+            else:
+                info.thumbnail_url = file.mxc
+            info.thumbnail_info = ImageInfo.deserialize(info.serialize())
 
         return info, name
 
@@ -164,6 +180,7 @@ class PortalTelegram(BasePortal, ABC):
         if document.size > config["bridge.max_document_size"] * 1000 ** 2:
             name = attrs.name or ""
             caption = f"\n{evt.message}" if evt.message else ""
+            # TODO encrypt
             return await intent.send_notice(self.mxid, f"Too large file {name}{caption}")
 
         thumb_loc, thumb_size = self._get_largest_photo_size(document)
@@ -175,7 +192,8 @@ class PortalTelegram(BasePortal, ABC):
         file = await util.transfer_file_to_matrix(source.client, intent, document, thumb_loc,
                                                   is_sticker=attrs.is_sticker,
                                                   tgs_convert=config["bridge.animated_sticker"],
-                                                  filename=attrs.name, parallel_id=parallel_id)
+                                                  filename=attrs.name, parallel_id=parallel_id,
+                                                  encrypt=self.encrypted)
         if not file:
             return None
 
@@ -188,17 +206,21 @@ class PortalTelegram(BasePortal, ABC):
         if attrs.is_sticker and file.mime_type.startswith("image/"):
             event_type = EventType.STICKER
         content = MediaMessageEventContent(
-            body=name or "unnamed file", info=info, url=file.mxc, relates_to=relates_to,
+            body=name or "unnamed file", info=info, relates_to=relates_to,
             external_url=self._get_external_url(evt),
             msgtype={
                 "video/": MessageType.VIDEO,
                 "audio/": MessageType.AUDIO,
                 "image/": MessageType.IMAGE,
             }.get(info.mimetype[:6], MessageType.FILE))
-        return await intent.send_message_event(self.mxid, event_type, content, timestamp=evt.date)
+        if file.decryption_info:
+            content.file = file.decryption_info
+        else:
+            content.url = file.mxc
+        return await self._send_message(intent, content, event_type=event_type, timestamp=evt.date)
 
-    def handle_telegram_location(self, _: 'AbstractUser', intent: IntentAPI, evt: Message,
-                                 relates_to: dict = None) -> Awaitable[EventID]:
+    def handle_telegram_location(self, source: 'AbstractUser', intent: IntentAPI, evt: Message,
+                                 relates_to: RelatesTo = None) -> Awaitable[EventID]:
         long = evt.media.geo.long
         lat = evt.media.geo.lat
         long_char = "E" if long > 0 else "W"
@@ -214,7 +236,7 @@ class PortalTelegram(BasePortal, ABC):
         content["format"] = str(Format.HTML)
         content["formatted_body"] = f"Location: <a href='{url}'>{body}</a>"
 
-        return intent.send_message(self.mxid, content, timestamp=evt.date)
+        return self._send_message(intent, content, timestamp=evt.date)
 
     async def handle_telegram_text(self, source: 'AbstractUser', intent: IntentAPI, is_bot: bool,
                                    evt: Message) -> EventID:
@@ -224,10 +246,10 @@ class PortalTelegram(BasePortal, ABC):
         if is_bot and self.get_config("bot_messages_as_notices"):
             content.msgtype = MessageType.NOTICE
         await intent.set_typing(self.mxid, is_typing=False)
-        return await intent.send_message(self.mxid, content, timestamp=evt.date)
+        return await self._send_message(intent, content, timestamp=evt.date)
 
     async def handle_telegram_unsupported(self, source: 'AbstractUser', intent: IntentAPI,
-                                          evt: Message, relates_to: dict = None) -> EventID:
+                                          evt: Message, relates_to: RelatesTo = None) -> EventID:
         override_text = ("This message is not supported on your version of Mautrix-Telegram. "
                          "Please check https://github.com/tulir/mautrix-telegram or ask your "
                          "bridge administrator about possible updates.")
@@ -237,7 +259,7 @@ class PortalTelegram(BasePortal, ABC):
         content.external_url = self._get_external_url(evt)
         content["net.maunium.telegram.unsupported"] = True
         await intent.set_typing(self.mxid, is_typing=False)
-        return await intent.send_message(self.mxid, content, timestamp=evt.date)
+        return await self._send_message(intent, content, timestamp=evt.date)
 
     async def handle_telegram_poll(self, source: 'AbstractUser', intent: IntentAPI, evt: Message,
                                    relates_to: RelatesTo) -> EventID:
@@ -263,11 +285,26 @@ class PortalTelegram(BasePortal, ABC):
             relates_to=relates_to, external_url=self._get_external_url(evt))
 
         await intent.set_typing(self.mxid, is_typing=False)
-        return await intent.send_message(self.mxid, content, timestamp=evt.date)
+        return await self._send_message(intent, content, timestamp=evt.date)
+
+    async def handle_telegram_dice(self, source: 'AbstractUser', intent: IntentAPI, evt: Message,
+                                   relates_to: RelatesTo) -> EventID:
+        emoji_text = {
+            "\U0001F3AF": " Dart throw",
+            "\U0001F3B2": " Dice roll",
+        }
+        roll: MessageMediaDice = evt.media
+        text = f"{roll.emoticon}{emoji_text.get(roll.emoticon, '')} result: {roll.value}"
+        content = TextMessageEventContent(msgtype=MessageType.TEXT, format=Format.HTML, body=text,
+                                          formatted_body=f"<h4>{text}</h4>", relates_to=relates_to,
+                                          external_url=self._get_external_url(evt))
+        content["net.maunium.telegram.dice"] = {"emoticon": roll.emoticon, "value": roll.value}
+        await intent.set_typing(self.mxid, is_typing=False)
+        return await self._send_message(intent, content, timestamp=evt.date)
 
     @staticmethod
     def _int_to_bytes(i: int) -> bytes:
-        hex_value = "{0:010x}".format(i)
+        hex_value = "{0:010x}".format(i).encode("utf-8")
         return codecs.decode(hex_value, "hex_codec")
 
     def _encode_msgid(self, source: 'AbstractUser', evt: Message) -> str:
@@ -305,11 +342,12 @@ class PortalTelegram(BasePortal, ABC):
         content["net.maunium.telegram.game"] = play_id
 
         await intent.set_typing(self.mxid, is_typing=False)
-        return await intent.send_message(self.mxid, content, timestamp=evt.date)
+        return await self._send_message(intent, content, timestamp=evt.date)
 
     async def handle_telegram_edit(self, source: 'AbstractUser', sender: p.Puppet, evt: Message
                                    ) -> None:
         if not self.mxid:
+            self.log.trace("Ignoring edit to %d as chat has no Matrix room", evt.id)
             return
         elif hasattr(evt, "media") and isinstance(evt.media, MessageMediaGame):
             self.log.debug("Ignoring game message edit event")
@@ -349,16 +387,54 @@ class PortalTelegram(BasePortal, ABC):
 
         intent = sender.intent_for(self) if sender else self.main_intent
         await intent.set_typing(self.mxid, is_typing=False)
-        event_id = await intent.send_message(self.mxid, content)
+        event_id = await self._send_message(intent, content)
 
         prev_edit_msg = DBMessage.get_one_by_tgid(TelegramID(evt.id), tg_space, -1) or editing_msg
         DBMessage(mxid=event_id, mx_room=self.mxid, tg_space=tg_space, tgid=TelegramID(evt.id),
                   edit_index=prev_edit_msg.edit_index + 1).insert()
         DBMessage.update_by_mxid(temporary_identifier, self.mxid, mxid=event_id)
 
+    async def backfill(self, source: 'AbstractUser') -> None:
+        self.log.debug("Backfilling history through %s", source.mxid)
+        last = DBMessage.find_last(self.mxid, (source.tgid if self.peer_type != "channel"
+                                               else self.tgid))
+        min_id = last.tgid if last else 0
+        self.backfilling = True
+        self.backfill_leave = set()
+        if self.peer_type == "user":
+            self.log.debug("Adding %s's default puppet to room for backfilling", source.mxid)
+            sender = p.Puppet.get(source.tgid)
+            await self.main_intent.invite_user(self.mxid, sender.default_mxid)
+            await sender.default_mxid_intent.join_room_by_id(self.mxid)
+            self.backfill_leave.add(sender.default_mxid_intent)
+        max_file_size = min(config["bridge.max_document_size"], 1500) * 1024 * 1024
+        self.log.trace("Opening takeout client for %d, message ID %d->", source.tgid, min_id)
+        count = 0
+        async with source.client.takeout(files=True, megagroups=self.megagroup,
+                                         chats=self.peer_type == "chat",
+                                         users=self.peer_type == "user",
+                                         channels=(self.peer_type == "channel"
+                                                   and not self.megagroup),
+                                         max_file_size=max_file_size
+                                         ) as takeout_client:
+            async for message in takeout_client.iter_messages(await self.get_input_entity(source),
+                                                              reverse=True, min_id=min_id):
+                sender = p.Puppet.get(message.sender_id)
+                # if isinstance(message, MessageService):
+                #    await self.handle_telegram_action(source, sender, message)
+                await self.handle_telegram_message(source, sender, message)
+                count += 1
+        for intent in self.backfill_leave:
+            self.log.trace("Leaving room with %s post-backfill", intent.mxid)
+            await intent.leave_room(self.mxid)
+        self.backfilling = False
+        self.backfill_leave = None
+        self.log.info("Backfilled %d messages through %s", count, source.mxid)
+
     async def handle_telegram_message(self, source: 'AbstractUser', sender: p.Puppet,
                                       evt: Message) -> None:
         if not self.mxid:
+            self.log.trace("Got telegram message %d, but no room exists, creating...", evt.id)
             await self.create_matrix_room(source, invites=[source.mxid], update_if_exists=False)
 
         if (self.peer_type == "user" and sender.tgid == self.tg_receiver
@@ -383,7 +459,7 @@ class PortalTelegram(BasePortal, ABC):
                               tg_space=tg_space, edit_index=0).insert()
                 return
 
-        if self.dedup.pre_db_check and self.peer_type == "channel":
+        if self.backfilling or (self.dedup.pre_db_check and self.peer_type == "channel"):
             msg = DBMessage.get_one_by_tgid(TelegramID(evt.id), tg_space)
             if msg:
                 self.log.debug(f"Ignoring message {evt.id} (src {source.tgid}) as it was already"
@@ -392,6 +468,8 @@ class PortalTelegram(BasePortal, ABC):
                                "bridge.deduplication.cache_queue_length in the config.")
                 return
 
+        self.log.trace("Handling Telegram message %s", evt)
+
         if sender and not sender.displayname:
             self.log.debug(f"Telegram user {sender.tgid} sent a message, but doesn't have a "
                            "displayname, updating info...")
@@ -399,10 +477,17 @@ class PortalTelegram(BasePortal, ABC):
             await sender.update_info(source, entity)
 
         allowed_media = (MessageMediaPhoto, MessageMediaDocument, MessageMediaGeo,
-                         MessageMediaGame, MessageMediaPoll, MessageMediaUnsupported)
+                         MessageMediaGame, MessageMediaDice, MessageMediaPoll,
+                         MessageMediaUnsupported)
         media = evt.media if hasattr(evt, "media") and isinstance(evt.media,
                                                                   allowed_media) else None
-        intent = sender.intent_for(self) if sender else self.main_intent
+        if sender:
+            intent = sender.intent_for(self)
+            if self.backfilling and intent != sender.default_mxid_intent:
+                intent = sender.default_mxid_intent
+                self.backfill_leave.add(intent)
+        else:
+            intent = self.main_intent
         if not media and evt.message:
             is_bot = sender.is_bot if sender else False
             event_id = await self.handle_telegram_text(source, intent, is_bot, evt)
@@ -412,12 +497,13 @@ class PortalTelegram(BasePortal, ABC):
                 MessageMediaDocument: self.handle_telegram_document,
                 MessageMediaGeo: self.handle_telegram_location,
                 MessageMediaPoll: self.handle_telegram_poll,
+                MessageMediaDice: self.handle_telegram_dice,
                 MessageMediaUnsupported: self.handle_telegram_unsupported,
                 MessageMediaGame: self.handle_telegram_game,
             }[type(media)](source, intent, evt,
                            relates_to=formatter.telegram_reply_to_matrix(evt, source))
         else:
-            self.log.debug("Unhandled Telegram message: %s", evt)
+            self.log.debug("Unhandled Telegram message %d", evt.id)
             return
 
         if not event_id:
@@ -434,7 +520,7 @@ class PortalTelegram(BasePortal, ABC):
             await intent.redact(self.mxid, event_id)
             return
 
-        self.log.debug("Handled Telegram message: %s", evt)
+        self.log.debug("Handled telegram message %d -> %s", evt.id, event_id)
         try:
             DBMessage(tgid=TelegramID(evt.id), mx_room=self.mxid, mxid=event_id,
                       tg_space=tg_space, edit_index=0).insert()
@@ -482,13 +568,14 @@ class PortalTelegram(BasePortal, ABC):
         elif isinstance(action, MessageActionChatMigrateTo):
             self.peer_type = "channel"
             self._migrate_and_save_telegram(TelegramID(action.channel_id))
+            # TODO encrypt
             await sender.intent_for(self).send_emote(self.mxid,
                                                      "upgraded this group to a supergroup.")
         elif isinstance(action, MessageActionGameScore):
             # TODO handle game score
             pass
         else:
-            self.log.debug("Unhandled Telegram action in %s: %s", self.title, action)
+            self.log.trace("Unhandled Telegram action in %s: %s", self.title, action)
 
     async def set_telegram_admin(self, user_id: TelegramID) -> None:
         puppet = p.Puppet.get(user_id)
@@ -502,7 +589,7 @@ class PortalTelegram(BasePortal, ABC):
         await self.main_intent.set_power_levels(self.mxid, levels)
 
     async def receive_telegram_pin_id(self, msg_id: TelegramID, receiver: TelegramID) -> None:
-        tg_space = receiver  if self.peer_type != "channel" else self.tgid
+        tg_space = receiver if self.peer_type != "channel" else self.tgid
         message = DBMessage.get_one_by_tgid(msg_id, tg_space) if msg_id != 0 else None
         if message:
             await self.main_intent.set_pinned_messages(self.mxid, [message.mxid])

mautrix_telegram/puppet.py

@@ -1,5 +1,5 @@
 # mautrix-telegram - A Matrix-Telegram puppeting bridge
-# Copyright (C) 2019 Tulir Asokan
+# Copyright (C) 2020 Tulir Asokan
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -242,8 +242,7 @@ class Puppet(CustomPuppetMixin):
 
         try:
             changed = await self.update_displayname(source, info) or changed
-            if isinstance(info.photo, UserProfilePhoto):
-                changed = await self.update_avatar(source, info.photo) or changed
+            changed = await self.update_avatar(source, info.photo) or changed
         except Exception:
             self.log.exception(f"Failed to update info from source {source.tgid}")
 
@@ -256,19 +255,24 @@ class Puppet(CustomPuppetMixin):
                                  ) -> bool:
         if self.disable_updates:
             return False
-        allow_source = (source.is_relaybot
-                        or self.displayname_source == source.tgid
-                        # User is not a contact, so there's no custom name
-                        or not info.contact
-                        # No displayname source, so just trust anything
-                        or self.displayname_source is None)
-        if not allow_source:
+        if source.is_relaybot or source.is_bot:
+            allow_because = "user is bot"
+        elif self.displayname_source == source.tgid:
+            allow_because = "user is the primary source"
+        elif not info.contact:
+            allow_because = "user is not a contact"
+        elif self.displayname_source is None:
+            allow_because = "no primary source set"
+        else:
             return False
-        elif isinstance(info, UpdateUserName):
+
+        if isinstance(info, UpdateUserName):
             info = await source.client.get_entity(PeerUser(self.tgid))
 
         displayname = self.get_displayname(info)
         if displayname != self.displayname:
+            self.log.debug(f"Updating displayname of {self.id} (src: {source.tgid}, allowed "
+                           f"because {allow_because}) from {self.displayname} to {displayname}")
             self.displayname = displayname
             self.displayname_source = source.tgid
             try:
@@ -289,10 +293,15 @@ class Puppet(CustomPuppetMixin):
         if self.disable_updates:
             return False
 
-        if isinstance(photo, UserProfilePhotoEmpty):
+        if photo is None or isinstance(photo, UserProfilePhotoEmpty):
             photo_id = ""
-        else:
+        elif isinstance(photo, UserProfilePhoto):
             photo_id = str(photo.photo_id)
+        else:
+            self.log.warning(f"Unknown user profile photo type: {type(photo)}")
+            return False
+        if not photo_id and not config["bridge.allow_avatar_remove"]:
+            return False
         if self.photo_id != photo_id:
             if not photo_id:
                 self.photo_id = ""
@@ -372,7 +381,7 @@ class Puppet(CustomPuppetMixin):
 
     @classmethod
     def all_with_custom_mxid(cls) -> Iterable['Puppet']:
-        return (cls.by_custom_mxid[puppet.mxid]
+        return (cls.by_custom_mxid[puppet.custom_mxid]
                 if puppet.custom_mxid in cls.by_custom_mxid
                 else cls.from_db(puppet)
                 for puppet in DBPuppet.all_with_custom_mxid())

mautrix_telegram/user.py

@@ -29,6 +29,7 @@ from mautrix.client import Client
 from mautrix.errors import MatrixRequestError
 from mautrix.types import UserID
 from mautrix.bridge import BaseUser
+from mautrix.util.logging import TraceLogger
 
 from .types import TelegramID
 from .db import User as DBUser
@@ -45,7 +46,7 @@ SearchResult = NewType('SearchResult', Tuple['pu.Puppet', int])
 
 
 class User(AbstractUser, BaseUser):
-    log: logging.Logger = logging.getLogger("mau.user")
+    log: TraceLogger = logging.getLogger("mau.user")
     by_mxid: Dict[str, 'User'] = {}
     by_tgid: Dict[int, 'User'] = {}
 
@@ -343,12 +344,14 @@ class User(AbstractUser, BaseUser):
             entity = dialog.entity
             if isinstance(entity, ChatForbidden):
                 self.log.warning(f"Ignoring forbidden chat {entity} while syncing")
+                continue
             elif isinstance(entity, Chat) and (entity.deactivated or entity.left):
                 self.log.warning(f"Ignoring deactivated or left chat {entity} while syncing")
                 continue
             elif isinstance(entity, TLUser) and not config["bridge.sync_direct_chats"]:
+                self.log.trace(f"Ignoring user {entity.id} while syncing")
                 continue
-            portal = po.Portal.get_by_entity(entity)
+            portal = po.Portal.get_by_entity(entity, receiver_id=self.tgid)
             self.portals[portal.tgid_full] = portal
             creators.append(
                 portal.create_matrix_room(self, entity, invites=[self.mxid],

mautrix_telegram/util/color_log.py

@@ -13,7 +13,8 @@
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
-from mautrix.util.color_log import ColorFormatter as BaseColorFormatter, PREFIX, MXID_COLOR, RESET
+from mautrix.util.logging.color import (ColorFormatter as BaseColorFormatter,
+                                        PREFIX, MXID_COLOR, RESET)
 
 TELETHON_COLOR = PREFIX + "35;1m"  # magenta
 TELETHON_MODULE_COLOR = PREFIX + "35m"

mautrix_telegram/util/file_transfer.py

@@ -18,6 +18,7 @@ from io import BytesIO
 import time
 import logging
 import asyncio
+import tempfile
 
 import magic
 from sqlalchemy.exc import IntegrityError, InvalidRequestError
@@ -29,12 +30,13 @@ from telethon.errors import (AuthBytesInvalidError, AuthKeyInvalidError, Locatio
                              SecurityError, FileIdInvalidError)
 
 from mautrix.appservice import IntentAPI
-
+from mautrix.types import EncryptedFile
 
 from ..tgclient import MautrixTelegramClient
 from ..db import TelegramFile as DBTelegramFile
 from ..util import sane_mimetypes
 from .parallel_file_transfer import parallel_transfer_to_matrix
+from .tgs_converter import convert_tgs_to
 
 try:
     from PIL import Image
@@ -43,14 +45,13 @@ except ImportError:
 
 try:
     from moviepy.editor import VideoFileClip
-    import random
-    import string
-    import os
-    import mimetypes
 except ImportError:
-    VideoFileClip = random = string = os = mimetypes = None
+    VideoFileClip = None
 
-from .tgs_converter import convert_tgs_to
+try:
+    from nio.crypto import encrypt_attachment
+except ImportError:
+    encrypt_attachment = None
 
 log: logging.Logger = logging.getLogger("mau.util")
 
@@ -76,32 +77,23 @@ def convert_image(file: bytes, source_mime: str = "image/webp", target_type: str
         return source_mime, file, None, None
 
 
-def _temp_file_name(ext: str) -> str:
-    return ("/tmp/mxtg-video-"
-            + "".join(random.choice(string.ascii_uppercase + string.digits) for _ in range(10))
-            + ext)
-
-
 def _read_video_thumbnail(data: bytes, video_ext: str = "mp4", frame_ext: str = "png",
                           max_size: Tuple[int, int] = (1024, 720)) -> Tuple[bytes, int, int]:
-    # We don't have any way to read the video from memory, so save it to disk.
-    temp_file = _temp_file_name(video_ext)
-    with open(temp_file, "wb") as file:
+    with tempfile.NamedTemporaryFile(prefix="mxtg_video_", suffix=f".{video_ext}") as file:
+        # We don't have any way to read the video from memory, so save it to disk.
         file.write(data)
 
-    # Read temp file and get frame
-    clip = VideoFileClip(temp_file)
-    frame = clip.get_frame(0)
+        # Read temp file and get frame
+        frame = VideoFileClip(file.name).get_frame(0)
 
     # Convert to png and save to BytesIO
     image = Image.fromarray(frame).convert("RGBA")
+
     thumbnail_file = BytesIO()
     if max_size:
         image.thumbnail(max_size, Image.ANTIALIAS)
     image.save(thumbnail_file, frame_ext)
 
-    os.remove(temp_file)
-
     w, h = image.size
     return thumbnail_file.getvalue(), w, h
 
@@ -116,8 +108,8 @@ def _location_to_id(location: TypeLocation) -> str:
 
 
 async def transfer_thumbnail_to_matrix(client: MautrixTelegramClient, intent: IntentAPI,
-                                       thumbnail_loc: TypeLocation, video: bytes,
-                                       mime: str) -> Optional[DBTelegramFile]:
+                                       thumbnail_loc: TypeLocation, video: bytes, mime: str,
+                                       encrypt: bool) -> Optional[DBTelegramFile]:
     if not Image or not VideoFileClip:
         return None
 
@@ -141,11 +133,19 @@ async def transfer_thumbnail_to_matrix(client: MautrixTelegramClient, intent: In
         width, height = None, None
         mime_type = magic.from_buffer(file, mime=True)
 
-    content_uri = await intent.upload_media(file, mime_type)
+    decryption_info = None
+    upload_mime_type = mime_type
+    if encrypt:
+        file, decryption_info_dict = encrypt_attachment(file)
+        decryption_info = EncryptedFile.deserialize(decryption_info_dict)
+        upload_mime_type = "application/octet-stream"
+    content_uri = await intent.upload_media(file, upload_mime_type)
+    if decryption_info:
+        decryption_info.url = content_uri
 
     db_file = DBTelegramFile(id=loc_id, mxc=content_uri, mime_type=mime_type,
                              was_converted=False, timestamp=int(time.time()), size=len(file),
-                             width=width, height=height)
+                             width=width, height=height, decryption_info=decryption_info)
     try:
         db_file.insert()
     except (IntegrityError, InvalidRequestError) as e:
@@ -161,10 +161,10 @@ TypeThumbnail = Optional[Union[TypeLocation, TypePhotoSize]]
 
 
 async def transfer_file_to_matrix(client: MautrixTelegramClient, intent: IntentAPI,
-                                  location: TypeLocation, thumbnail: TypeThumbnail = None,
+                                  location: TypeLocation, thumbnail: TypeThumbnail = None, *,
                                   is_sticker: bool = False, tgs_convert: Optional[dict] = None,
-                                  filename: Optional[str] = None, parallel_id: Optional[int] = None
-                                  ) -> Optional[DBTelegramFile]:
+                                  filename: Optional[str] = None, encrypt: bool = False,
+                                  parallel_id: Optional[int] = None) -> Optional[DBTelegramFile]:
     location_id = _location_to_id(location)
     if not location_id:
         return None
@@ -181,14 +181,14 @@ async def transfer_file_to_matrix(client: MautrixTelegramClient, intent: IntentA
     async with lock:
         return await _unlocked_transfer_file_to_matrix(client, intent, location_id, location,
                                                        thumbnail, is_sticker, tgs_convert,
-                                                       filename, parallel_id)
+                                                       filename, encrypt, parallel_id)
 
 
 async def _unlocked_transfer_file_to_matrix(client: MautrixTelegramClient, intent: IntentAPI,
                                             loc_id: str, location: TypeLocation,
                                             thumbnail: TypeThumbnail, is_sticker: bool,
                                             tgs_convert: Optional[dict], filename: Optional[str],
-                                            parallel_id: Optional[int]
+                                            encrypt: bool, parallel_id: Optional[int]
                                             ) -> Optional[DBTelegramFile]:
     db_file = DBTelegramFile.get(loc_id)
     if db_file:
@@ -196,7 +196,7 @@ async def _unlocked_transfer_file_to_matrix(client: MautrixTelegramClient, inten
 
     if parallel_id and isinstance(location, Document) and (not is_sticker or not tgs_convert):
         db_file = await parallel_transfer_to_matrix(client, intent, loc_id, location, filename,
-                                                    parallel_id)
+                                                    encrypt, parallel_id)
         mime_type = location.mime_type
         file = None
     else:
@@ -214,8 +214,8 @@ async def _unlocked_transfer_file_to_matrix(client: MautrixTelegramClient, inten
         image_converted = False
         # A weird bug in alpine/magic makes it return application/octet-stream for gzips...
         if is_sticker and tgs_convert and (mime_type == "application/gzip" or (
-               mime_type == "application/octet-stream"
-               and magic.from_buffer(file).startswith("gzip"))):
+            mime_type == "application/octet-stream"
+            and magic.from_buffer(file).startswith("gzip"))):
             mime_type, file, width, height = await convert_tgs_to(
                 file, tgs_convert["target"], **tgs_convert["args"])
             thumbnail = None
@@ -229,17 +229,28 @@ async def _unlocked_transfer_file_to_matrix(client: MautrixTelegramClient, inten
             mime_type = new_mime_type
             thumbnail = None
 
-        content_uri = await intent.upload_media(file, mime_type)
+        decryption_info = None
+        upload_mime_type = mime_type
+        if encrypt and encrypt_attachment:
+            file, decryption_info_dict = encrypt_attachment(file)
+            decryption_info = EncryptedFile.deserialize(decryption_info_dict)
+            upload_mime_type = "application/octet-stream"
+        content_uri = await intent.upload_media(file, upload_mime_type)
+        if decryption_info:
+            decryption_info.url = content_uri
 
-        db_file = DBTelegramFile(id=loc_id, mxc=content_uri,
+        db_file = DBTelegramFile(id=loc_id, mxc=content_uri, decryption_info=decryption_info,
                                  mime_type=mime_type, was_converted=image_converted,
                                  timestamp=int(time.time()), size=len(file),
                                  width=width, height=height)
     if thumbnail and (mime_type.startswith("video/") or mime_type == "image/gif"):
         if isinstance(thumbnail, (PhotoSize, PhotoCachedSize)):
             thumbnail = thumbnail.location
-        db_file.thumbnail = await transfer_thumbnail_to_matrix(client, intent, thumbnail, file,
-                                                               mime_type)
+        try:
+            db_file.thumbnail = await transfer_thumbnail_to_matrix(client, intent, thumbnail, file,
+                                                                   mime_type, encrypt)
+        except FileIdInvalidError:
+            log.warning(f"Failed to transfer thumbnail for {thumbnail!s}", exc_info=True)
 
     try:
         db_file.insert()

mautrix_telegram/util/parallel_file_transfer.py

@@ -13,7 +13,7 @@
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
-from typing import Optional, List, AsyncGenerator, Union, Awaitable, DefaultDict, Tuple
+from typing import Optional, List, AsyncGenerator, Union, Awaitable, DefaultDict, Tuple, cast
 from collections import defaultdict
 import hashlib
 import asyncio
@@ -34,12 +34,18 @@ from telethon.crypto import AuthKey
 from telethon import utils, helpers
 
 from mautrix.appservice import IntentAPI
-from mautrix.types import ContentURI
+from mautrix.types import ContentURI, EncryptedFile
+from mautrix.util.logging import TraceLogger
 
 from ..tgclient import MautrixTelegramClient
 from ..db import TelegramFile as DBTelegramFile
 
-log: logging.Logger = logging.getLogger("mau.util")
+try:
+    from nio.crypto import async_encrypt_attachment
+except ImportError:
+    async_encrypt_attachment = None
+
+log: TraceLogger = cast(TraceLogger, logging.getLogger("mau.util"))
 
 TypeLocation = Union[Document, InputDocumentFileLocation, InputPeerPhotoFileLocation,
                      InputFileLocation, InputPhotoFileLocation]
@@ -97,7 +103,7 @@ class UploadSender:
 
     async def _next(self, data: bytes) -> None:
         self.request.bytes = data
-        log.debug(f"Sending file part {self.request.file_part}/{self.part_count}"
+        log.trace(f"Sending file part {self.request.file_part}/{self.part_count}"
                   f" with {len(data)} bytes")
         await self.sender.send(self.request)
         self.request.file_part += self.stride
@@ -231,7 +237,7 @@ class ParallelTransferrer:
                     break
                 yield data
                 part += 1
-                log.debug(f"Part {part} downloaded")
+                log.trace(f"Part {part} downloaded")
 
         log.debug("Parallel download finished, cleaning up connections")
         await self._cleanup()
@@ -242,18 +248,34 @@ parallel_transfer_locks: DefaultDict[int, asyncio.Lock] = defaultdict(lambda: as
 
 async def parallel_transfer_to_matrix(client: MautrixTelegramClient, intent: IntentAPI,
                                       loc_id: str, location: TypeLocation, filename: str,
-                                      parallel_id: int) -> DBTelegramFile:
+                                      encrypt: bool, parallel_id: int) -> DBTelegramFile:
     size = location.size
     mime_type = location.mime_type
     dc_id, location = utils.get_input_location(location)
     # We lock the transfers because telegram has connection count limits
     async with parallel_transfer_locks[parallel_id]:
         downloader = ParallelTransferrer(client, dc_id)
-        content_uri = await intent.upload_media(downloader.download(location, size),
-                                                mime_type=mime_type, filename=filename, size=size)
+        data = downloader.download(location, size)
+        decryption_info = None
+        up_mime_type = mime_type
+        if encrypt and async_encrypt_attachment:
+            async def encrypted(stream):
+                nonlocal decryption_info
+                async for chunk in async_encrypt_attachment(stream):
+                    if isinstance(chunk, dict):
+                        decryption_info = EncryptedFile.deserialize(chunk)
+                    else:
+                        yield chunk
+
+            data = encrypted(data)
+            up_mime_type = "application/octet-stream"
+        content_uri = await intent.upload_media(data, mime_type=up_mime_type, filename=filename,
+                                                size=size if not encrypt else None)
+        if decryption_info:
+            decryption_info.url = content_uri
     return DBTelegramFile(id=loc_id, mxc=content_uri, mime_type=mime_type,
                           was_converted=False, timestamp=int(time.time()), size=size,
-                          width=None, height=None)
+                          width=None, height=None, decryption_info=decryption_info)
 
 
 async def _internal_transfer_to_telegram(client: MautrixTelegramClient, response: ClientResponse

mautrix_telegram/web/provisioning/__init__.py

@@ -315,9 +315,9 @@ class ProvisioningAPI(AuthAPI):
 
         if not user.is_bot:
             return web.json_response([{
-                "id": get_peer_id(chat),
+                "id": chat.id,
                 "title": chat.title,
-            } async for chat in user.client.get_dialogs(ignore_migrated=True, archived=False)])
+            } async for chat in user.client.iter_dialogs(ignore_migrated=True, archived=False)])
         else:
             return web.json_response([{
                 "id": get_peer_id(chat.peer),

optional-requirements.txt

@@ -1,5 +1,23 @@
-cryptg
-Pillow
-moviepy
-prometheus_client
-psycopg2-binary
+# Format: #/name defines a new extras_require group called name
+# Uncommented lines after the group definition insert things into that group.
+
+#/speedups
+cryptg>=0.1,<0.3
+cchardet
+aiodns
+brotli
+
+#/webp_convert
+pillow>=4.3,<8
+
+#/hq_thumbnails
+moviepy>=1,<2
+
+#/metrics
+prometheus_client>=0.6,<0.9
+
+#/postgres
+psycopg2-binary>=2,<3
+
+#/e2be
+matrix-nio[e2e]>=0.9,<0.13

requirements.txt

@@ -1,9 +1,9 @@
-aiohttp
-mautrix
-ruamel.yaml
-python-magic
-SQLAlchemy
-alembic
-commonmark
-telethon
-telethon-session-sqlalchemy
+SQLAlchemy>=1.2,<2
+alembic>=1,<2
+ruamel.yaml>=0.15.35,<0.17
+python-magic>=0.4,<0.5
+commonmark>=0.8,<0.10
+aiohttp>=3,<4
+mautrix==0.5.0
+telethon>=1.13,<1.15
+telethon-session-sqlalchemy>=0.2.14,<0.3

setup.py

@@ -3,14 +3,21 @@ import glob
 
 from mautrix_telegram.get_version import git_tag, git_revision, version, linkified_version
 
-extras = {
-    "speedups": ["cryptg>=0.1,<0.3", "cchardet", "aiodns", "Brotli"],
-    "webp_convert": ["Pillow>=4.3.0,<7"],
-    "hq_thumbnails": ["moviepy>=1.0,<2.0"],
-    "metrics": ["prometheus_client>=0.6.0,<0.8.0"],
-    "postgres": ["psycopg2-binary>=2,<3"],
-}
-extras["all"] = list({dep for deps in extras.values() for dep in deps})
+with open("requirements.txt") as reqs:
+    install_requires = reqs.read().splitlines()
+
+with open("optional-requirements.txt") as reqs:
+    extras_require = {}
+    current = []
+    for line in reqs.read().splitlines():
+        if line.startswith("#/"):
+            extras_require[line[2:]] = current = []
+        elif not line or line.startswith("#"):
+            continue
+        else:
+            current.append(line)
+
+extras_require["all"] = list({dep for deps in extras_require.values() for dep in deps})
 
 try:
     long_desc = open("README.md").read()
@@ -40,18 +47,8 @@ setuptools.setup(
 
     packages=setuptools.find_packages(),
 
-    install_requires=[
-        "aiohttp>=3.0.1,<4",
-        "mautrix>=0.4.0,<0.5",
-        "SQLAlchemy>=1.2.3,<2",
-        "alembic>=1.0.0,<2",
-        "commonmark>=0.8.1,<0.10",
-        "ruamel.yaml>=0.15.35,<0.17",
-        "python-magic>=0.4.15,<0.5",
-        "telethon>=1.10,<1.11",
-        "telethon-session-sqlalchemy>=0.2.14,<0.3",
-    ],
-    extras_require=extras,
+    install_requires=install_requires,
+    extras_require=extras_require,
     python_requires="~=3.6",
 
     setup_requires=["pytest-runner"],
@@ -74,9 +71,10 @@ setuptools.setup(
     """,
     package_data={"mautrix_telegram": [
         "web/public/*.mako", "web/public/*.png", "web/public/*.css",
+        "example-config.yaml",
     ]},
     data_files=[
-        (".", ["example-config.yaml", "alembic.ini"]),
+        (".", ["alembic.ini"]),
         ("alembic", ["alembic/env.py"]),
         ("alembic/versions", glob.glob("alembic/versions/*.py"))
     ],