Add 'server/' from commit '006c5fc2425f5aa060d2911c175dae6b6b1a19f3'

git-subtree-dir: server
git-subtree-mainline: b93fe69019
git-subtree-split: 006c5fc242

server/.dockerignore

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+/db.sqlite3*
+Session.vim
+/local_settings.py
+.venv
+/assets
+/logs
+/.coverage
+/tmp
+/media
+
+__pycache__
+.*.swp
+
+/.*
+
+/sandbox

server/.github/FUNDING.yml

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+github: etesync
+custom: https://www.etesync.com/contribute/#donate

server/.gitignore

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+/journal
+/db.sqlite3*
+Session.vim
+/.venv
+/assets
+/logs
+/.coverage
+/tmp
+/media
+/.idea
+
+__pycache__
+.*.swp
+
+/etebase_server_settings.py
+/secret.txt

server/ChangeLog.md

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+# Changelog
+
+## Version 0.8.3
+- Fix compatibility with latest fastapi
+
+## Version 0.8.2
+- Update dependencies again
+
+## Version 0.8.1
+* Fix Error `404 Not Found` for Static Files
+* Fix Django 3.2 warnings
+* Update dependencies while (keep Django 3.2 LTS)
+
+## Version 0.8.0
+* Update django dep.
+* Fix issue with comparing ports in hostname verification with self-hosted servers.
+* Fix sendfile settings to be more correct.
+* Improve easy config (make it clear media_root needs to be set)
+* Handle stoken being the empty string
+* Fix mysql/mariadb support
+* Switch to FastAPI for the server component
+
+## Version 0.7.0
+* Chunks: improve the chunk download endpoint to use sendfile extensions
+* Chunks: support not passing chunk content if exists
+* Chunks: fix chunk uploading media type to accept everything
+* Gracefull handle uploading the same revision
+* Pass generic context to callbacks instead of the whole view
+* Fix handling of some validation errors
+
+## Version 0.6.1
+* Collection: save the UID on the model to use the db for enforcing uniqueness
+
+## Version 0.6.0
+* Fix stoken calculation performance - was VERY slow in some rare cases
+* Fix issues with host verification failing with a custom port - part 2
+
+## Version 0.5.3
+* Add missing migration
+
+## Version 0.5.2
+* Fix issues with host verification failing with a custom port
+* Add env variable to change configuration file path.
+* Change user creation to not ask for a password (and clarify the readme).
+
+## Version 0.5.1
+* Enforce collections to always have a collection type set
+* Collection saving: add another verification for collection UID uniqueness.
+
+## Version 0.5.0
+* First Etebase-server release (was EteSync-server before)

server/LICENSE

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
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+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    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/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

server/README.md

@@ -0,0 +1,179 @@
+<p align="center">
+  <img width="120" src="icon.svg" />
+  <h1 align="center">Etebase - Encrypt Everything</h1>
+</p>
+
+An [Etebase](https://www.etebase.com) (EteSync 2.0) server so you can run your own.
+
+[![Chat with us](https://img.shields.io/badge/chat-IRC%20|%20Matrix%20|%20Web-blue.svg)](https://www.etebase.com/community-chat/)
+
+# Installation
+
+## Requirements
+
+Etebase requires Python 3.7 or newer and has a few Python dependencies (listed in `requirements.in/base.txt`).
+
+## From source
+
+Before installing the Etebase server make sure you install `virtualenv` (for **Python 3**):
+
+* Arch Linux: `pacman -S python-virtualenv`
+* Debian/Ubuntu: `apt-get install python3-virtualenv`
+* Mac/Windows (WSL)/Other Linux: install virtualenv or just skip the instructions mentioning virtualenv.
+
+Then just clone the git repo and set up this app:
+
+```
+git clone https://github.com/etesync/server.git etebase
+
+cd etebase
+
+# Set up the environment and deps
+virtualenv -p python3 .venv  # If doesn't work, try: virtualenv3 .venv
+source .venv/bin/activate
+
+pip install -r requirements.txt
+```
+
+# Configuration
+
+If you are familiar with Django you can just edit the [settings file](etebase_server/settings.py)
+according to the [Django deployment checklist](https://docs.djangoproject.com/en/dev/howto/deployment/checklist/).
+If you are not, we also provide a simple [configuration file](etebase-server.ini.example) for easy deployment which you can use.
+To use the easy configuration file rename it to `etebase-server.ini` and place it either at the root of this repository or in `/etc/etebase-server`.
+
+There is also a [wikipage](https://github.com/etesync/server/wiki/Basic-Setup-Etebase-(EteSync-v2)) detailing this basic setup.
+
+Some particular settings that should be edited are:
+  * [`ALLOWED_HOSTS`](https://docs.djangoproject.com/en/dev/ref/settings/#std:setting-ALLOWED_HOSTS)
+    -- this is the list of host/domain names or addresses on which the app
+will be served. For example: `etebase.example.com`
+  * [`DEBUG`](https://docs.djangoproject.com/en/dev/ref/settings/#debug)
+    -- handy for debugging, set to `False` for production
+  * [`MEDIA_ROOT`](https://docs.djangoproject.com/en/dev/ref/settings/#media-root)
+    -- the path to the directory that will hold user data.
+  * [`SECRET_KEY`](https://docs.djangoproject.com/en/dev/ref/settings/#std:setting-SECRET_KEY)
+    -- an ephemeral secret used for various cryptographic signing and token
+generation purposes. See below for how default configuration of
+`SECRET_KEY` works for this project.
+
+Now you can initialise our django app.
+
+```
+./manage.py migrate
+```
+
+And you are done! You can now run the debug server just to see everything works as expected by running:
+
+```
+uvicorn etebase_server.asgi:application --host 0.0.0.0 --port 8000
+```
+
+Using the debug server in production is not recommended, so please read the following section for a proper deployment.
+
+# Production deployment
+
+There are more details about a proper production setup using uvicorn and Nginx in the [wiki](https://github.com/etesync/server/wiki/Production-setup-using-Nginx).
+
+The webserver should also be configured to serve Etebase using TLS.
+A guide for doing so can be found in the [wiki](https://github.com/etesync/server/wiki/Setup-HTTPS-for-Etebase) as well.
+
+The Etebase server needs to be aware of the URL it's been served as, so make sure to forward the `Host` header to the server if using a reverse proxy. For example, you would need to use the following directive in nginx: `proxy_set_header Host $host;`.
+
+# Data locations and backups
+
+The server stores user data in two different locations that need to be backed up:
+1. The database - how to backup depends on which database you use.
+2. The `MEDIA_ROOT` - the path where user data is stored.
+
+# Usage
+
+Create yourself an admin user:
+
+```
+./manage.py createsuperuser
+```
+
+At this stage you need to create accounts to be used with the EteSync apps. To do that, please go to:
+`www.your-etesync-install.com/admin` and create a new user to be used with the service. No need to set
+a password, as Etebase uses a zero-knowledge proof for authentication, so the user will just create
+a password when creating the account from the apps.
+
+After this user has been created, you can use any of the EteSync apps to signup (or login) with the same username and
+email in order to set up the account. The password used at that point will be used to setup the account.
+Don't forget to set your custom server address under "Advanced".
+
+# `SECRET_KEY` and `secret.txt`
+
+The default configuration creates a file “`secret.txt`” in the project’s
+base directory, which is used as the value of the Django `SECRET_KEY`
+setting. You can revoke this key by deleting the `secret.txt` file and the
+next time the app is run, a new one will be generated. Make sure you keep
+the `secret.txt` file secret (e.g. don’t accidentally commit it to version
+control). However, backing it up is okay, and it makes it easier to restore
+the database to a new EteSync server, but it's not essential. If you want to
+change to a more secure system for storing secrets, edit `etesync_server/settings.py`
+and implement your own method for setting `SECRET_KEY` (remove the line
+where it uses the `get_secret_from_file` function).  Read the Django docs
+for more information about the `SECRET_KEY` and its uses.
+
+# Updating
+
+## Updating from version 0.5.0 onwards
+
+First, run `git pull --rebase` to update this repository.
+Then, inside the virtualenv:
+1. Run `pip install -U -r requirements.txt` to update the dependencies.
+2. Run `python manage.py migrate` to perform database migrations.
+
+You can now restart the server.
+
+## Updating from version 0.5.0 or before
+
+The 0.5.0 release marks the change to the EteSync 2.0 protocol. EteSync 2.0 accounts are substantially different to 1.0 accounts, and require additional upgrade steps. In addition, the servers are incompatible, so 0.5.0 requires a fresh installation.
+
+Here are the update steps:
+1. Chose any of the [the migration tools](https://www.etesync.com/user-guide/migrate-v2/) and make sure the underlying apps are up to date with all of your data. So for example, if you are using the Android client, make sure to sync before commencing.
+2. Install the 0.5.0 version to a new path (you can't reuse the same database).
+3. Run the 0.5.0 account and create the appropriate users as described in the installation/upgrade steps above.
+4. Run the migration tool to migrate all of your data.
+5. Add your new EteSync 2.0 accounts to all of your devices.
+
+# Testing
+
+Docker images named `etesync/test-server:<version>` and `:latest` are available for testing etesync clients.
+This docker image starts a server on port 3735 that supports user signup (without email confirmation), is in debug mode (thus supporting the reset endpoint), and stores its data locally.
+It is in no way suitable for production usage, but is able to start up quickly and makes a good component of CI for etesync clients and users of those clients.
+
+# User signup
+
+Instead of having to create Django users manually when signup up Etebase users, it is also possible to allow automatic signup.
+For example, this makes sense when putting an Etebase server in production.
+However, this does come with the added risk that everybody with access to your server will be able to sign up.
+
+In order to set it up, comment out the line `ETEBASE_CREATE_USER_FUNC = "django_etebase.utils.create_user_blocked"` in `server/settings.py` and restart your Etebase server.
+
+# License
+
+Etebase is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License version 3 as published by the Free Software Foundation. See the [LICENSE](./LICENSE) for more information.
+
+A quick summary can be found [on tldrlegal](https://tldrlegal.com/license/gnu-affero-general-public-license-v3-(agpl-3.0)). Though in even simpler terms (not part of the license, and not legal advice): you can use it in however way you want, including self-hosting and commercial offerings as long as you release the code to any modifications you have made to the server software (clients are not affected).
+
+## Commercial licensing
+
+For commercial licensing options, contact license@etebase.com 
+
+# Financially Supporting Etebase
+
+Please consider registering an account even if you self-host in order to support the development of Etebase, or visit the [contribution](https://www.etesync.com/contribute/) for more information on how to support the service.
+
+Become a financial contributor and help us sustain our community!
+
+## Supporters ($20 / month)
+
+[![jzacsh](https://github.com/jzacsh.png?size=80)](https://github.com/jzacsh)
+
+## Contributors ($10 / month)
+
+[![ilovept](https://github.com/ilovept.png?size=40)](https://github.com/ilovept)
+[![ryanleesipes](https://github.com/ryanleesipes.png?size=40)](https://github.com/ryanleesipes)

server/django_etebase/__init__.py

@@ -0,0 +1 @@
+from .app_settings_inner import app_settings

server/django_etebase/app_settings_inner.py

@@ -0,0 +1,89 @@
+# Copyright © 2017 Tom Hacohen
+#
+# 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 the Free Software Foundation, version 3.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+import typing as t
+
+from django.utils.functional import cached_property
+
+
+class AppSettings:
+    def __init__(self, prefix):
+        self.prefix = prefix
+
+    def import_from_str(self, name):
+        from importlib import import_module
+
+        path, prop = name.rsplit(".", 1)
+
+        mod = import_module(path)
+        return getattr(mod, prop)
+
+    def _setting(self, name, dflt):
+        from django.conf import settings
+
+        return getattr(settings, self.prefix + name, dflt)
+
+    @cached_property
+    def REDIS_URI(self) -> t.Optional[str]:  # pylint: disable=invalid-name
+        return self._setting("REDIS_URI", None)
+
+    @cached_property
+    def API_PERMISSIONS_READ(self):  # pylint: disable=invalid-name
+        perms = self._setting("API_PERMISSIONS_READ", tuple())
+        ret = []
+        for perm in perms:
+            ret.append(self.import_from_str(perm))
+        return ret
+
+    @cached_property
+    def API_PERMISSIONS_WRITE(self):  # pylint: disable=invalid-name
+        perms = self._setting("API_PERMISSIONS_WRITE", tuple())
+        ret = []
+        for perm in perms:
+            ret.append(self.import_from_str(perm))
+        return ret
+
+    @cached_property
+    def GET_USER_QUERYSET_FUNC(self):  # pylint: disable=invalid-name
+        get_user_queryset = self._setting("GET_USER_QUERYSET_FUNC", None)
+        if get_user_queryset is not None:
+            return self.import_from_str(get_user_queryset)
+        return None
+
+    @cached_property
+    def CREATE_USER_FUNC(self):  # pylint: disable=invalid-name
+        func = self._setting("CREATE_USER_FUNC", None)
+        if func is not None:
+            return self.import_from_str(func)
+        return None
+
+    @cached_property
+    def DASHBOARD_URL_FUNC(self):  # pylint: disable=invalid-name
+        func = self._setting("DASHBOARD_URL_FUNC", None)
+        if func is not None:
+            return self.import_from_str(func)
+        return None
+
+    @cached_property
+    def CHUNK_PATH_FUNC(self):  # pylint: disable=invalid-name
+        func = self._setting("CHUNK_PATH_FUNC", None)
+        if func is not None:
+            return self.import_from_str(func)
+        return None
+
+    @cached_property
+    def CHALLENGE_VALID_SECONDS(self):  # pylint: disable=invalid-name
+        return self._setting("CHALLENGE_VALID_SECONDS", 60)
+
+
+app_settings = AppSettings("ETEBASE_")

server/django_etebase/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class DjangoEtebaseConfig(AppConfig):
+    name = "django_etebase"

server/django_etebase/migrations/0001_initial.py

@@ -0,0 +1,185 @@
+# Generated by Django 3.0.3 on 2020-05-13 13:01
+
+from django.conf import settings
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+import django_etebase.models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Collection",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                (
+                    "uid",
+                    models.CharField(
+                        db_index=True,
+                        max_length=44,
+                        validators=[
+                            django.core.validators.RegexValidator(message="Not a valid UID", regex="[a-zA-Z0-9]")
+                        ],
+                    ),
+                ),
+                ("version", models.PositiveSmallIntegerField()),
+                ("owner", models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                "unique_together": {("uid", "owner")},
+            },
+        ),
+        migrations.CreateModel(
+            name="CollectionItem",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                (
+                    "uid",
+                    models.CharField(
+                        db_index=True,
+                        max_length=44,
+                        null=True,
+                        validators=[
+                            django.core.validators.RegexValidator(message="Not a valid UID", regex="[a-zA-Z0-9]")
+                        ],
+                    ),
+                ),
+                ("version", models.PositiveSmallIntegerField()),
+                ("encryptionKey", models.BinaryField(editable=True, null=True)),
+                (
+                    "collection",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="items",
+                        to="django_etebase.Collection",
+                    ),
+                ),
+            ],
+            options={
+                "unique_together": {("uid", "collection")},
+            },
+        ),
+        migrations.CreateModel(
+            name="CollectionItemChunk",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                (
+                    "uid",
+                    models.CharField(
+                        db_index=True,
+                        max_length=44,
+                        validators=[
+                            django.core.validators.RegexValidator(
+                                message="Expected a 256bit base64url.", regex="^[a-zA-Z0-9\\-_]{43}$"
+                            )
+                        ],
+                    ),
+                ),
+                (
+                    "chunkFile",
+                    models.FileField(max_length=150, unique=True, upload_to=django_etebase.models.chunk_directory_path),
+                ),
+                (
+                    "item",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="chunks",
+                        to="django_etebase.CollectionItem",
+                    ),
+                ),
+            ],
+        ),
+        migrations.CreateModel(
+            name="CollectionItemRevision",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                (
+                    "uid",
+                    models.CharField(
+                        db_index=True,
+                        max_length=44,
+                        unique=True,
+                        validators=[
+                            django.core.validators.RegexValidator(
+                                message="Expected a 256bit base64url.", regex="^[a-zA-Z0-9\\-_]{43}$"
+                            )
+                        ],
+                    ),
+                ),
+                ("meta", models.BinaryField(editable=True)),
+                ("current", models.BooleanField(db_index=True, default=True, null=True)),
+                ("deleted", models.BooleanField(default=False)),
+                (
+                    "item",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="revisions",
+                        to="django_etebase.CollectionItem",
+                    ),
+                ),
+            ],
+            options={
+                "unique_together": {("item", "current")},
+            },
+        ),
+        migrations.CreateModel(
+            name="RevisionChunkRelation",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                (
+                    "chunk",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="revisions_relation",
+                        to="django_etebase.CollectionItemChunk",
+                    ),
+                ),
+                (
+                    "revision",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="chunks_relation",
+                        to="django_etebase.CollectionItemRevision",
+                    ),
+                ),
+            ],
+            options={
+                "ordering": ("id",),
+            },
+        ),
+        migrations.CreateModel(
+            name="CollectionMember",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                ("encryptionKey", models.BinaryField(editable=True)),
+                (
+                    "accessLevel",
+                    models.CharField(
+                        choices=[("adm", "Admin"), ("rw", "Read Write"), ("ro", "Read Only")],
+                        default="ro",
+                        max_length=3,
+                    ),
+                ),
+                (
+                    "collection",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="members",
+                        to="django_etebase.Collection",
+                    ),
+                ),
+                ("user", models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                "unique_together": {("user", "collection")},
+            },
+        ),
+    ]

server/django_etebase/migrations/0002_userinfo.py

@@ -0,0 +1,33 @@
+# Generated by Django 3.0.3 on 2020-05-14 09:51
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("myauth", "0001_initial"),
+        ("django_etebase", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="UserInfo",
+            fields=[
+                (
+                    "owner",
+                    models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        primary_key=True,
+                        serialize=False,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+                ("version", models.PositiveSmallIntegerField(default=1)),
+                ("pubkey", models.BinaryField(editable=True)),
+                ("salt", models.BinaryField(editable=True)),
+            ],
+        ),
+    ]

server/django_etebase/migrations/0003_collectioninvitation.py

@@ -0,0 +1,61 @@
+# Generated by Django 3.0.3 on 2020-05-20 11:03
+
+from django.conf import settings
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("django_etebase", "0002_userinfo"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="CollectionInvitation",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                (
+                    "uid",
+                    models.CharField(
+                        db_index=True,
+                        max_length=44,
+                        validators=[
+                            django.core.validators.RegexValidator(
+                                message="Expected a 256bit base64url.", regex="^[a-zA-Z0-9\\-_]{43}$"
+                            )
+                        ],
+                    ),
+                ),
+                ("signedEncryptionKey", models.BinaryField()),
+                (
+                    "accessLevel",
+                    models.CharField(
+                        choices=[("adm", "Admin"), ("rw", "Read Write"), ("ro", "Read Only")],
+                        default="ro",
+                        max_length=3,
+                    ),
+                ),
+                (
+                    "fromMember",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE, to="django_etebase.CollectionMember"
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="incoming_invitations",
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+            options={
+                "unique_together": {("user", "fromMember")},
+            },
+        ),
+    ]

server/django_etebase/migrations/0004_collectioninvitation_version.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.0.3 on 2020-05-21 14:45
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0003_collectioninvitation"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="collectioninvitation",
+            name="version",
+            field=models.PositiveSmallIntegerField(default=1),
+        ),
+    ]

server/django_etebase/migrations/0005_auto_20200526_1021.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.0.3 on 2020-05-26 10:21
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0004_collectioninvitation_version"),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name="userinfo",
+            old_name="pubkey",
+            new_name="loginPubkey",
+        ),
+    ]

server/django_etebase/migrations/0006_auto_20200526_1040.py

@@ -0,0 +1,25 @@
+# Generated by Django 3.0.3 on 2020-05-26 10:40
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0005_auto_20200526_1021"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="userinfo",
+            name="encryptedSeckey",
+            field=models.BinaryField(default=b"", editable=True),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name="userinfo",
+            name="pubkey",
+            field=models.BinaryField(default=b"", editable=True),
+            preserve_default=False,
+        ),
+    ]

server/django_etebase/migrations/0007_auto_20200526_1336.py

@@ -0,0 +1,73 @@
+# Generated by Django 3.0.3 on 2020-05-26 13:36
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0006_auto_20200526_1040"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collection",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=43,
+                validators=[django.core.validators.RegexValidator(message="Not a valid UID", regex="^[a-zA-Z0-9]*$")],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="collectioninvitation",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=43,
+                validators=[
+                    django.core.validators.RegexValidator(
+                        message="Expected a base64url.", regex="^[a-zA-Z0-9\\-_]{42,43}$"
+                    )
+                ],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="collectionitem",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=43,
+                null=True,
+                validators=[django.core.validators.RegexValidator(message="Not a valid UID", regex="^[a-zA-Z0-9]*$")],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="collectionitemchunk",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=43,
+                validators=[
+                    django.core.validators.RegexValidator(
+                        message="Expected a base64url.", regex="^[a-zA-Z0-9\\-_]{42,43}$"
+                    )
+                ],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="collectionitemrevision",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=43,
+                unique=True,
+                validators=[
+                    django.core.validators.RegexValidator(
+                        message="Expected a base64url.", regex="^[a-zA-Z0-9\\-_]{42,43}$"
+                    )
+                ],
+            ),
+        ),
+    ]

server/django_etebase/migrations/0008_auto_20200526_1535.py

@@ -0,0 +1,43 @@
+# Generated by Django 3.0.3 on 2020-05-26 15:35
+
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+import django_etebase.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0007_auto_20200526_1336"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Stoken",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                (
+                    "uid",
+                    models.CharField(
+                        db_index=True,
+                        default=django_etebase.models.generate_stoken_uid,
+                        max_length=43,
+                        unique=True,
+                        validators=[
+                            django.core.validators.RegexValidator(
+                                message="Expected a base64url.", regex="^[a-zA-Z0-9\\-_]{42,43}$"
+                            )
+                        ],
+                    ),
+                ),
+            ],
+        ),
+        migrations.AddField(
+            model_name="collectionitemrevision",
+            name="stoken",
+            field=models.OneToOneField(
+                null=True, on_delete=django.db.models.deletion.PROTECT, to="django_etebase.Stoken"
+            ),
+        ),
+    ]

server/django_etebase/migrations/0009_auto_20200526_1535.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.0.3 on 2020-05-26 15:35
+
+from django.db import migrations
+
+
+def create_stokens(apps, schema_editor):
+    Stoken = apps.get_model("django_etebase", "Stoken")
+    CollectionItemRevision = apps.get_model("django_etebase", "CollectionItemRevision")
+
+    for rev in CollectionItemRevision.objects.all():
+        rev.stoken = Stoken.objects.create()
+        rev.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0008_auto_20200526_1535"),
+    ]
+
+    operations = [
+        migrations.RunPython(create_stokens),
+    ]

server/django_etebase/migrations/0010_auto_20200526_1539.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.3 on 2020-05-26 15:39
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0009_auto_20200526_1535"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collectionitemrevision",
+            name="stoken",
+            field=models.OneToOneField(on_delete=django.db.models.deletion.PROTECT, to="django_etebase.Stoken"),
+        ),
+    ]

server/django_etebase/migrations/0011_collectionmember_stoken.py

@@ -0,0 +1,21 @@
+# Generated by Django 3.0.3 on 2020-05-27 07:43
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0010_auto_20200526_1539"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="collectionmember",
+            name="stoken",
+            field=models.OneToOneField(
+                null=True, on_delete=django.db.models.deletion.PROTECT, to="django_etebase.Stoken"
+            ),
+        ),
+    ]

server/django_etebase/migrations/0012_auto_20200527_0743.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.0.3 on 2020-05-27 07:43
+
+from django.db import migrations
+
+
+def create_stokens(apps, schema_editor):
+    Stoken = apps.get_model("django_etebase", "Stoken")
+    CollectionMember = apps.get_model("django_etebase", "CollectionMember")
+
+    for member in CollectionMember.objects.all():
+        member.stoken = Stoken.objects.create()
+        member.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0011_collectionmember_stoken"),
+    ]
+
+    operations = [
+        migrations.RunPython(create_stokens),
+    ]

server/django_etebase/migrations/0013_collectionmemberremoved.py

@@ -0,0 +1,40 @@
+# Generated by Django 3.0.3 on 2020-05-27 11:29
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("django_etebase", "0012_auto_20200527_0743"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="CollectionMemberRemoved",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                (
+                    "collection",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="removed_members",
+                        to="django_etebase.Collection",
+                    ),
+                ),
+                (
+                    "stoken",
+                    models.OneToOneField(
+                        null=True, on_delete=django.db.models.deletion.PROTECT, to="django_etebase.Stoken"
+                    ),
+                ),
+                ("user", models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                "unique_together": {("user", "collection")},
+            },
+        ),
+    ]

server/django_etebase/migrations/0014_auto_20200602_1558.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.0.3 on 2020-06-02 15:58
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0013_collectionmemberremoved"),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name="userinfo",
+            old_name="encryptedSeckey",
+            new_name="encryptedContent",
+        ),
+    ]

server/django_etebase/migrations/0015_collectionitemrevision_salt.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.0.3 on 2020-06-04 12:18
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0014_auto_20200602_1558"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="collectionitemrevision",
+            name="salt",
+            field=models.BinaryField(default=b"", editable=True),
+        ),
+    ]

server/django_etebase/migrations/0016_auto_20200623_0820.py

@@ -0,0 +1,36 @@
+# Generated by Django 3.0.3 on 2020-06-23 08:20
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0015_collectionitemrevision_salt"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="collection",
+            name="main_item",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.PROTECT,
+                related_name="parent",
+                to="django_etebase.CollectionItem",
+            ),
+        ),
+        migrations.AlterUniqueTogether(
+            name="collection",
+            unique_together=set(),
+        ),
+        migrations.RemoveField(
+            model_name="collection",
+            name="uid",
+        ),
+        migrations.RemoveField(
+            model_name="collection",
+            name="version",
+        ),
+    ]

server/django_etebase/migrations/0017_auto_20200623_0958.py

@@ -0,0 +1,34 @@
+# Generated by Django 3.0.3 on 2020-06-23 09:58
+
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0016_auto_20200623_0820"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collection",
+            name="main_item",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                related_name="parent",
+                to="django_etebase.CollectionItem",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="collectionitem",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=43,
+                validators=[django.core.validators.RegexValidator(message="Not a valid UID", regex="^[a-zA-Z0-9]*$")],
+            ),
+        ),
+    ]

server/django_etebase/migrations/0018_auto_20200624_0748.py

@@ -0,0 +1,25 @@
+# Generated by Django 3.0.3 on 2020-06-24 07:48
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0017_auto_20200623_0958"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collectionitem",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=43,
+                validators=[
+                    django.core.validators.RegexValidator(message="Not a valid UID", regex="^[a-zA-Z0-9\\-_]*$")
+                ],
+            ),
+        ),
+    ]

server/django_etebase/migrations/0019_auto_20200626_0748.py

@@ -0,0 +1,25 @@
+# Generated by Django 3.0.3 on 2020-06-26 07:48
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0018_auto_20200624_0748"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collectionitemchunk",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=60,
+                validators=[
+                    django.core.validators.RegexValidator(message="Not a valid UID", regex="^[a-zA-Z0-9\\-_]*$")
+                ],
+            ),
+        ),
+    ]

server/django_etebase/migrations/0020_remove_collectionitemrevision_salt.py

@@ -0,0 +1,17 @@
+# Generated by Django 3.0.3 on 2020-06-26 08:19
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0019_auto_20200626_0748"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="collectionitemrevision",
+            name="salt",
+        ),
+    ]

server/django_etebase/migrations/0021_auto_20200626_0913.py

@@ -0,0 +1,73 @@
+# Generated by Django 3.0.3 on 2020-06-26 09:13
+
+import django.core.validators
+from django.db import migrations, models
+import django_etebase.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0020_remove_collectionitemrevision_salt"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collectioninvitation",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=43,
+                validators=[
+                    django.core.validators.RegexValidator(message="Not a valid UID", regex="^[a-zA-Z0-9\\-_]{20,}$")
+                ],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="collectionitem",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=43,
+                validators=[
+                    django.core.validators.RegexValidator(message="Not a valid UID", regex="^[a-zA-Z0-9\\-_]{20,}$")
+                ],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="collectionitemchunk",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=60,
+                validators=[
+                    django.core.validators.RegexValidator(message="Not a valid UID", regex="^[a-zA-Z0-9\\-_]{20,}$")
+                ],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="collectionitemrevision",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                max_length=43,
+                unique=True,
+                validators=[
+                    django.core.validators.RegexValidator(message="Not a valid UID", regex="^[a-zA-Z0-9\\-_]{20,}$")
+                ],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="stoken",
+            name="uid",
+            field=models.CharField(
+                db_index=True,
+                default=django_etebase.models.generate_stoken_uid,
+                max_length=43,
+                unique=True,
+                validators=[
+                    django.core.validators.RegexValidator(message="Not a valid UID", regex="^[a-zA-Z0-9\\-_]{20,}$")
+                ],
+            ),
+        ),
+    ]

server/django_etebase/migrations/0022_auto_20200804_1059.py

@@ -0,0 +1,17 @@
+# Generated by Django 3.0.3 on 2020-08-04 10:59
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0021_auto_20200626_0913"),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name="collectionitemchunk",
+            unique_together={("item", "uid")},
+        ),
+    ]

server/django_etebase/migrations/0023_collectionitemchunk_collection.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.0.3 on 2020-08-04 12:08
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0022_auto_20200804_1059"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="collectionitemchunk",
+            name="collection",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="chunks",
+                to="django_etebase.Collection",
+            ),
+        ),
+    ]

server/django_etebase/migrations/0024_auto_20200804_1209.py

@@ -0,0 +1,22 @@
+# Generated by Django 3.0.3 on 2020-08-04 12:09
+
+from django.db import migrations
+
+
+def change_chunk_to_collections(apps, schema_editor):
+    CollectionItemChunk = apps.get_model("django_etebase", "CollectionItemChunk")
+
+    for chunk in CollectionItemChunk.objects.all():
+        chunk.collection = chunk.item.collection
+        chunk.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0023_collectionitemchunk_collection"),
+    ]
+
+    operations = [
+        migrations.RunPython(change_chunk_to_collections),
+    ]

server/django_etebase/migrations/0025_auto_20200804_1216.py

@@ -0,0 +1,29 @@
+# Generated by Django 3.0.3 on 2020-08-04 12:16
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0024_auto_20200804_1209"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collectionitemchunk",
+            name="collection",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, related_name="chunks", to="django_etebase.Collection"
+            ),
+        ),
+        migrations.AlterUniqueTogether(
+            name="collectionitemchunk",
+            unique_together={("collection", "uid")},
+        ),
+        migrations.RemoveField(
+            model_name="collectionitemchunk",
+            name="item",
+        ),
+    ]

server/django_etebase/migrations/0026_auto_20200907_0752.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.1 on 2020-09-07 07:52
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0025_auto_20200804_1216"),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name="collectioninvitation",
+            old_name="accessLevel",
+            new_name="accessLevelOld",
+        ),
+        migrations.RenameField(
+            model_name="collectionmember",
+            old_name="accessLevel",
+            new_name="accessLevelOld",
+        ),
+    ]

server/django_etebase/migrations/0027_auto_20200907_0752.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.1 on 2020-09-07 07:52
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0026_auto_20200907_0752"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="collectioninvitation",
+            name="accessLevel",
+            field=models.IntegerField(choices=[(0, "Read Only"), (1, "Admin"), (2, "Read Write")], default=0),
+        ),
+        migrations.AddField(
+            model_name="collectionmember",
+            name="accessLevel",
+            field=models.IntegerField(choices=[(0, "Read Only"), (1, "Admin"), (2, "Read Write")], default=0),
+        ),
+    ]

server/django_etebase/migrations/0028_auto_20200907_0754.py

@@ -0,0 +1,39 @@
+# Generated by Django 3.1 on 2020-09-07 07:54
+
+from django.db import migrations
+
+from django_etebase.models import AccessLevels
+
+
+def change_access_level_to_int(apps, schema_editor):
+    CollectionMember = apps.get_model("django_etebase", "CollectionMember")
+    CollectionInvitation = apps.get_model("django_etebase", "CollectionInvitation")
+
+    for member in CollectionMember.objects.all():
+        if member.accessLevelOld == "adm":
+            member.accessLevel = AccessLevels.ADMIN
+        elif member.accessLevelOld == "rw":
+            member.accessLevel = AccessLevels.READ_WRITE
+        elif member.accessLevelOld == "ro":
+            member.accessLevel = AccessLevels.READ_ONLY
+        member.save()
+
+    for invitation in CollectionInvitation.objects.all():
+        if invitation.accessLevelOld == "adm":
+            invitation.accessLevel = AccessLevels.ADMIN
+        elif invitation.accessLevelOld == "rw":
+            invitation.accessLevel = AccessLevels.READ_WRITE
+        elif invitation.accessLevelOld == "ro":
+            invitation.accessLevel = AccessLevels.READ_ONLY
+        invitation.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0027_auto_20200907_0752"),
+    ]
+
+    operations = [
+        migrations.RunPython(change_access_level_to_int),
+    ]

server/django_etebase/migrations/0029_auto_20200907_0801.py

@@ -0,0 +1,21 @@
+# Generated by Django 3.1 on 2020-09-07 08:01
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0028_auto_20200907_0754"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="collectioninvitation",
+            name="accessLevelOld",
+        ),
+        migrations.RemoveField(
+            model_name="collectionmember",
+            name="accessLevelOld",
+        ),
+    ]

server/django_etebase/migrations/0030_auto_20200922_0832.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.1.1 on 2020-09-22 08:32
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0029_auto_20200907_0801"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collection",
+            name="main_item",
+            field=models.OneToOneField(
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                related_name="parent",
+                to="django_etebase.collectionitem",
+            ),
+        ),
+    ]

server/django_etebase/migrations/0031_auto_20201013_1336.py

@@ -0,0 +1,31 @@
+# Generated by Django 3.1.1 on 2020-10-13 13:36
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("django_etebase", "0030_auto_20200922_0832"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="CollectionType",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                ("uid", models.BinaryField(db_index=True, editable=True)),
+                ("owner", models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.AddField(
+            model_name="collectionmember",
+            name="collectionType",
+            field=models.ForeignKey(
+                null=True, on_delete=django.db.models.deletion.PROTECT, to="django_etebase.collectiontype"
+            ),
+        ),
+    ]

server/django_etebase/migrations/0032_auto_20201013_1409.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1.1 on 2020-10-13 14:09
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0031_auto_20201013_1336"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collectiontype",
+            name="uid",
+            field=models.BinaryField(db_index=True, editable=True, max_length=1024, unique=True),
+        ),
+    ]

server/django_etebase/migrations/0033_collection_uid.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.1.1 on 2020-12-14 11:21
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_etebase', '0032_auto_20201013_1409'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='collection',
+            name='uid',
+            field=models.CharField(db_index=True, max_length=43, null=True, validators=[django.core.validators.RegexValidator(message='Not a valid UID', regex='^[a-zA-Z0-9\\-_]{20,}$')]),
+        ),
+    ]

server/django_etebase/migrations/0034_auto_20201214_1124.py

@@ -0,0 +1,22 @@
+# Generated by Django 3.1.1 on 2020-12-14 11:24
+
+from django.db import migrations
+
+
+def update_collection_uid(apps, schema_editor):
+    Collection = apps.get_model("django_etebase", "Collection")
+
+    for collection in Collection.objects.all():
+        collection.uid = collection.main_item.uid
+        collection.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0033_collection_uid"),
+    ]
+
+    operations = [
+        migrations.RunPython(update_collection_uid),
+    ]

server/django_etebase/migrations/0035_auto_20201214_1126.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.1.1 on 2020-12-14 11:26
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_etebase', '0034_auto_20201214_1124'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='collection',
+            name='uid',
+            field=models.CharField(db_index=True, max_length=43, validators=[django.core.validators.RegexValidator(message='Not a valid UID', regex='^[a-zA-Z0-9\\-_]{20,}$')]),
+        ),
+    ]

server/django_etebase/migrations/0036_auto_20201214_1128.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.1.1 on 2020-12-14 11:28
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_etebase', '0035_auto_20201214_1126'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='collection',
+            name='uid',
+            field=models.CharField(db_index=True, max_length=43, unique=True, validators=[django.core.validators.RegexValidator(message='Not a valid UID', regex='^[a-zA-Z0-9\\-_]{20,}$')]),
+        ),
+    ]

server/django_etebase/migrations/0037_auto_20210127_1237.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1.1 on 2021-01-27 12:37
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("django_etebase", "0036_auto_20201214_1128"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collectiontype",
+            name="uid",
+            field=models.BinaryField(db_index=True, editable=True, max_length=1024, unique=True),
+        ),
+    ]

server/django_etebase/models.py

@@ -0,0 +1,272 @@
+# Copyright © 2017 Tom Hacohen
+#
+# 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 the Free Software Foundation, version 3.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+import typing as t
+from pathlib import Path
+
+from django.db import models, transaction
+from django.conf import settings
+from django.core.validators import RegexValidator
+from django.db.models import Max, Value as V
+from django.db.models.functions import Coalesce, Greatest
+from django.utils.functional import cached_property
+from django.utils.crypto import get_random_string
+
+from . import app_settings
+
+
+UidValidator = RegexValidator(regex=r"^[a-zA-Z0-9\-_]{20,}$", message="Not a valid UID")
+
+
+def stoken_annotation_builder(stoken_id_fields: t.List[str]):
+    aggr_fields = [Coalesce(Max(field), V(0)) for field in stoken_id_fields]
+    return Greatest(*aggr_fields) if len(aggr_fields) > 1 else aggr_fields[0]
+
+
+class CollectionType(models.Model):
+    owner = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    uid = models.BinaryField(editable=True, blank=False, null=False, db_index=True, unique=True, max_length=1024)
+
+    objects: models.manager.BaseManager["CollectionType"]
+
+
+class Collection(models.Model):
+    main_item = models.OneToOneField("CollectionItem", related_name="parent", null=True, on_delete=models.SET_NULL)
+    # The same as main_item.uid, we just also save it here so we have DB constraints for uniqueness (and efficiency)
+    uid = models.CharField(db_index=True, unique=True, blank=False, max_length=43, validators=[UidValidator])
+    owner = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+
+    stoken_annotation = stoken_annotation_builder(["items__revisions__stoken", "members__stoken"])
+
+    objects: models.manager.BaseManager["Collection"]
+
+    def __str__(self):
+        return self.uid
+
+    @property
+    def content(self) -> "CollectionItemRevision":
+        assert self.main_item is not None
+        return self.main_item.content
+
+    @property
+    def etag(self) -> str:
+        return self.content.uid
+
+    @cached_property
+    def stoken(self) -> str:
+        stoken_id = (
+            self.__class__.objects.filter(main_item=self.main_item)
+            .annotate(max_stoken=self.stoken_annotation)
+            .values("max_stoken")
+            .first()["max_stoken"]
+        )
+
+        if stoken_id == 0:
+            raise Exception("stoken is None. Should never happen")
+
+        return Stoken.objects.get(id=stoken_id).uid
+
+
+class CollectionItem(models.Model):
+    uid = models.CharField(db_index=True, blank=False, max_length=43, validators=[UidValidator])
+    collection = models.ForeignKey(Collection, related_name="items", on_delete=models.CASCADE)
+    version = models.PositiveSmallIntegerField()
+    encryptionKey = models.BinaryField(editable=True, blank=False, null=True)
+
+    stoken_annotation = stoken_annotation_builder(["revisions__stoken"])
+
+    objects: models.manager.BaseManager["CollectionItem"]
+
+    class Meta:
+        unique_together = ("uid", "collection")
+
+    def __str__(self):
+        return "{} {}".format(self.uid, self.collection.uid)
+
+    @cached_property
+    def content(self) -> "CollectionItemRevision":
+        return self.revisions.get(current=True)
+
+    @property
+    def etag(self) -> str:
+        return self.content.uid
+
+
+def chunk_directory_path(instance: "CollectionItemChunk", filename: str) -> Path:
+    custom_func = app_settings.CHUNK_PATH_FUNC
+    if custom_func is not None:
+        return custom_func(instance, filename)
+
+    col: Collection = instance.collection
+    user_id: int = col.owner.id
+    uid_prefix: str = instance.uid[:2]
+    uid_rest: str = instance.uid[2:]
+    return Path("user_{}".format(user_id), col.uid, uid_prefix, uid_rest)
+
+
+class CollectionItemChunk(models.Model):
+    uid = models.CharField(db_index=True, blank=False, null=False, max_length=60, validators=[UidValidator])
+    collection = models.ForeignKey(Collection, related_name="chunks", on_delete=models.CASCADE)
+    chunkFile = models.FileField(upload_to=chunk_directory_path, max_length=150, unique=True)
+
+    objects: models.manager.BaseManager["CollectionItemChunk"]
+
+    def __str__(self):
+        return self.uid
+
+    class Meta:
+        unique_together = ("collection", "uid")
+
+
+def generate_stoken_uid():
+    return get_random_string(32, allowed_chars="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_")
+
+
+class Stoken(models.Model):
+    id: int
+    uid = models.CharField(
+        db_index=True,
+        unique=True,
+        blank=False,
+        null=False,
+        default=generate_stoken_uid,
+        max_length=43,
+        validators=[UidValidator],
+    )
+
+    objects: models.manager.BaseManager["Stoken"]
+
+
+class CollectionItemRevision(models.Model):
+    stoken = models.OneToOneField(Stoken, on_delete=models.PROTECT)
+    uid = models.CharField(
+        db_index=True, unique=True, blank=False, null=False, max_length=43, validators=[UidValidator]
+    )
+    item = models.ForeignKey(CollectionItem, related_name="revisions", on_delete=models.CASCADE)
+    meta = models.BinaryField(editable=True, blank=False, null=False)
+    current = models.BooleanField(db_index=True, default=True, null=True)
+    deleted = models.BooleanField(default=False)
+
+    objects: models.manager.BaseManager["CollectionItemRevision"]
+
+    class Meta:
+        unique_together = ("item", "current")
+
+    def __str__(self):
+        return "{} {} current={}".format(self.uid, self.item.uid, self.current)
+
+
+class RevisionChunkRelation(models.Model):
+    chunk = models.ForeignKey(CollectionItemChunk, related_name="revisions_relation", on_delete=models.CASCADE)
+    revision = models.ForeignKey(CollectionItemRevision, related_name="chunks_relation", on_delete=models.CASCADE)
+
+    objects: models.manager.BaseManager["RevisionChunkRelation"]
+
+    class Meta:
+        ordering = ("id",)
+
+
+class AccessLevels(models.IntegerChoices):
+    READ_ONLY = 0
+    ADMIN = 1
+    READ_WRITE = 2
+
+
+class CollectionMember(models.Model):
+    stoken = models.OneToOneField(Stoken, on_delete=models.PROTECT, null=True)
+    collection = models.ForeignKey(Collection, related_name="members", on_delete=models.CASCADE)
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    encryptionKey = models.BinaryField(editable=True, blank=False, null=False)
+    collectionType = models.ForeignKey(CollectionType, on_delete=models.PROTECT, null=True)
+    accessLevel = models.IntegerField(
+        choices=AccessLevels.choices,
+        default=AccessLevels.READ_ONLY,
+    )
+
+    stoken_annotation = stoken_annotation_builder(["stoken"])
+
+    objects: models.manager.BaseManager["CollectionMember"]
+
+    class Meta:
+        unique_together = ("user", "collection")
+
+    def __str__(self):
+        return "{} {}".format(self.collection.uid, self.user)
+
+    def revoke(self):
+        with transaction.atomic():
+            CollectionMemberRemoved.objects.update_or_create(
+                collection=self.collection,
+                user=self.user,
+                defaults={
+                    "stoken": Stoken.objects.create(),
+                },
+            )
+
+            self.delete()
+
+
+class CollectionMemberRemoved(models.Model):
+    stoken = models.OneToOneField(Stoken, on_delete=models.PROTECT, null=True)
+    collection = models.ForeignKey(Collection, related_name="removed_members", on_delete=models.CASCADE)
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+
+    objects: models.manager.BaseManager["CollectionMemberRemoved"]
+
+    class Meta:
+        unique_together = ("user", "collection")
+
+    def __str__(self):
+        return "{} {}".format(self.collection.uid, self.user)
+
+
+class CollectionInvitation(models.Model):
+    uid = models.CharField(db_index=True, blank=False, null=False, max_length=43, validators=[UidValidator])
+    version = models.PositiveSmallIntegerField(default=1)
+    fromMember = models.ForeignKey(CollectionMember, on_delete=models.CASCADE)
+    # FIXME: make sure to delete all invitations for the same collection once one is accepted
+    # Make sure to not allow invitations if already a member
+
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, related_name="incoming_invitations", on_delete=models.CASCADE)
+    signedEncryptionKey = models.BinaryField(editable=False, blank=False, null=False)
+    accessLevel = models.IntegerField(
+        choices=AccessLevels.choices,
+        default=AccessLevels.READ_ONLY,
+    )
+
+    objects: models.manager.BaseManager["CollectionInvitation"]
+
+    class Meta:
+        unique_together = ("user", "fromMember")
+
+    def __str__(self):
+        return "{} {}".format(self.fromMember.collection.uid, self.user)
+
+    @cached_property
+    def collection(self) -> Collection:
+        return self.fromMember.collection
+
+
+class UserInfo(models.Model):
+    owner = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, primary_key=True)
+    version = models.PositiveSmallIntegerField(default=1)
+    loginPubkey = models.BinaryField(editable=True, blank=False, null=False)
+    pubkey = models.BinaryField(editable=True, blank=False, null=False)
+    encryptedContent = models.BinaryField(editable=True, blank=False, null=False)
+    salt = models.BinaryField(editable=True, blank=False, null=False)
+
+    objects: models.manager.BaseManager["UserInfo"]
+
+    def __str__(self):
+        return "UserInfo<{}>".format(self.owner)

server/django_etebase/signals.py

@@ -0,0 +1,3 @@
+from django.dispatch import Signal
+
+user_signed_up = Signal(providing_args=["request", "user"])

server/django_etebase/token_auth/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class TokenAuthConfig(AppConfig):
+    name = "django_etebase.token_auth"

server/django_etebase/token_auth/migrations/0001_initial.py

@@ -0,0 +1,38 @@
+# Generated by Django 3.0.3 on 2020-06-03 12:49
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+from django_etebase.token_auth import models as token_auth_models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="AuthToken",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                (
+                    "key",
+                    models.CharField(db_index=True, default=token_auth_models.generate_key, max_length=40, unique=True),
+                ),
+                ("created", models.DateTimeField(auto_now_add=True)),
+                ("expiry", models.DateTimeField(blank=True, default=token_auth_models.get_default_expiry, null=True)),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="auth_token_set",
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+        ),
+    ]

server/django_etebase/token_auth/models.py

@@ -0,0 +1,25 @@
+from django.db import models
+from django.utils import timezone
+from django.utils.crypto import get_random_string
+from myauth.models import get_typed_user_model
+
+User = get_typed_user_model()
+
+
+def generate_key():
+    return get_random_string(40)
+
+
+def get_default_expiry():
+    return timezone.now() + timezone.timedelta(days=30)
+
+
+class AuthToken(models.Model):
+
+    key = models.CharField(max_length=40, unique=True, db_index=True, default=generate_key)
+    user = models.ForeignKey(User, null=False, blank=False, related_name="auth_token_set", on_delete=models.CASCADE)
+    created = models.DateTimeField(auto_now_add=True)
+    expiry = models.DateTimeField(null=True, blank=True, default=get_default_expiry)
+
+    def __str__(self):
+        return "{}: {}".format(self.key, self.user)

server/django_etebase/utils.py

@@ -0,0 +1,37 @@
+import typing as t
+from dataclasses import dataclass
+
+from django.db.models import QuerySet
+from django.core.exceptions import PermissionDenied
+from myauth.models import UserType, get_typed_user_model
+
+from . import app_settings
+
+
+User = get_typed_user_model()
+
+
+@dataclass
+class CallbackContext:
+    """Class for passing extra context to callbacks"""
+
+    url_kwargs: t.Dict[str, t.Any]
+    user: t.Optional[UserType] = None
+
+
+def get_user_queryset(queryset: QuerySet[UserType], context: CallbackContext) -> QuerySet[UserType]:
+    custom_func = app_settings.GET_USER_QUERYSET_FUNC
+    if custom_func is not None:
+        return custom_func(queryset, context)
+    return queryset
+
+
+def create_user(context: CallbackContext, *args, **kwargs) -> UserType:
+    custom_func = app_settings.CREATE_USER_FUNC
+    if custom_func is not None:
+        return custom_func(context, *args, **kwargs)
+    return User.objects.create_user(*args, **kwargs)
+
+
+def create_user_blocked(*args, **kwargs):
+    raise PermissionDenied("Signup is disabled for this server. Please refer to the README for more information.")

server/docker/build.sh

@@ -0,0 +1,16 @@
+#! /bin/bash
+
+# Build the `test-server` image, which runs the server in a simple configuration
+# designed to be used in tests, based on the current git revision.
+
+TAG="${1:-latest}"
+
+echo "Building working copy to etesync/test-server:${TAG}"
+
+ETESYNC_VERSION=$(git describe --tags)
+
+docker build \
+    --build-arg ETESYNC_VERSION=${ETESYNC_VERSION} \
+    -t etesync/test-server:${TAG} \
+    -f docker/test-server/Dockerfile \
+    .

server/docker/test-server/Dockerfile

@@ -0,0 +1,38 @@
+FROM python:3.9.0-alpine
+
+ARG ETESYNC_VERSION
+
+ENV PIP_DISABLE_PIP_VERSION_CHECK=1
+ENV PIP_NO_CACHE_DIR=1
+
+# install packages and pip requirements first, in a single step,
+COPY /requirements.txt /requirements.txt
+RUN set -ex ;\
+    apk add libpq postgresql-dev --virtual .build-deps coreutils gcc libc-dev libffi-dev make ;\
+    pip install -U pip ;\
+    pip install --no-cache-dir --progress-bar off -r /requirements.txt ;\
+    apk del .build-deps make gcc coreutils ;\
+    rm -rf /root/.cache
+
+COPY . /app
+
+RUN set -ex ;\
+    mkdir -p /data/static /data/media ;\
+    cd /app ;\
+    mkdir -p /etc/etebase-server ;\
+    cp docker/test-server/etebase-server.ini /etc/etebase-server ;\
+    sed -e '/ETEBASE_CREATE_USER_FUNC/ s/^#*/#/' -i /app/etebase_server/settings.py ;\
+    chmod +x docker/test-server/entrypoint.sh
+
+# this is a test image and should start up quickly, so it starts with the DB
+# and static data already fully set up.
+RUN set -ex ;\
+    cd /app ;\
+    python manage.py migrate ;\
+    python manage.py collectstatic --noinput
+
+ENV ETESYNC_VERSION=${ETESYNC_VERSION}
+VOLUME /data
+EXPOSE 3735
+
+ENTRYPOINT ["/app/docker/test-server/entrypoint.sh"]

server/docker/test-server/entrypoint.sh

@@ -0,0 +1,6 @@
+#! /bin/sh
+
+echo "Running etesync test server ${ETESYNC_VERSION}"
+
+cd /app
+uvicorn etebase_server.asgi:application --host 0.0.0.0 --port 3735

server/docker/test-server/etebase-server.ini

@@ -0,0 +1,12 @@
+[global]
+secret_file = secret.txt
+debug = true
+static_root = /data/static
+media_root = /data/media
+
+[allowed_hosts]
+allowed_host1 = *
+
+[database]
+engine = django.db.backends.sqlite3
+name = /db.sqlite3

server/etebase-server.ini.example

@@ -0,0 +1,20 @@
+[global]
+secret_file = secret.txt
+debug = false
+;Set the paths where data will be stored at
+static_root = /path/to/static
+media_root = /path/to/media
+
+;Advanced options, only uncomment if you know what you're doing:
+;static_url = /static/
+;media_url = /user-media/
+;language_code = en-us
+;time_zone = UTC
+;redis_uri = redis://localhost:6379
+
+[allowed_hosts]
+allowed_host1 = example.com
+
+[database]
+engine = django.db.backends.sqlite3
+name = db.sqlite3

server/etebase_fastapi/db_hack.py

@@ -0,0 +1,27 @@
+"""
+FIXME: this whole function is a hack around the django db limitations due to how db connections are cached and cleaned.
+Essentially django assumes there's the django request dispatcher to automatically clean up after the ORM.
+"""
+import typing as t
+from functools import wraps
+
+from django.db import close_old_connections, reset_queries
+
+
+def django_db_cleanup():
+    reset_queries()
+    close_old_connections()
+
+
+def django_db_cleanup_decorator(func: t.Callable[..., t.Any]):
+    from inspect import iscoroutinefunction
+
+    if iscoroutinefunction(func):
+        return func
+
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        django_db_cleanup()
+        return func(*args, **kwargs)
+
+    return wrapper

server/etebase_fastapi/dependencies.py

@@ -0,0 +1,88 @@
+import dataclasses
+
+from fastapi import Depends
+from fastapi.security import APIKeyHeader
+
+from django.utils import timezone
+from django.db.models import QuerySet
+
+from django_etebase import models
+from django_etebase.token_auth.models import AuthToken, get_default_expiry
+from myauth.models import UserType, get_typed_user_model
+from .exceptions import AuthenticationFailed
+from .utils import get_object_or_404
+from .db_hack import django_db_cleanup_decorator
+
+
+User = get_typed_user_model()
+token_scheme = APIKeyHeader(name="Authorization")
+AUTO_REFRESH = True
+MIN_REFRESH_INTERVAL = 60
+
+
+@dataclasses.dataclass(frozen=True)
+class AuthData:
+    user: UserType
+    token: AuthToken
+
+
+def __renew_token(auth_token: AuthToken):
+    current_expiry = auth_token.expiry
+    new_expiry = get_default_expiry()
+    # Throttle refreshing of token to avoid db writes
+    delta = (new_expiry - current_expiry).total_seconds()
+    if delta > MIN_REFRESH_INTERVAL:
+        auth_token.expiry = new_expiry
+        auth_token.save(update_fields=("expiry",))
+
+
+def __get_authenticated_user(api_token: str):
+    api_token = api_token.split()[1]
+    try:
+        token: AuthToken = AuthToken.objects.select_related("user").get(key=api_token)
+    except AuthToken.DoesNotExist:
+        raise AuthenticationFailed(detail="Invalid token.")
+    if not token.user.is_active:
+        raise AuthenticationFailed(detail="User inactive or deleted.")
+
+    if token.expiry is not None:
+        if token.expiry < timezone.now():
+            token.delete()
+            raise AuthenticationFailed(detail="Invalid token.")
+
+        if AUTO_REFRESH:
+            __renew_token(token)
+
+    return token.user, token
+
+
+@django_db_cleanup_decorator
+def get_auth_data(api_token: str = Depends(token_scheme)) -> AuthData:
+    user, token = __get_authenticated_user(api_token)
+    return AuthData(user, token)
+
+
+@django_db_cleanup_decorator
+def get_authenticated_user(api_token: str = Depends(token_scheme)) -> UserType:
+    user, _ = __get_authenticated_user(api_token)
+    return user
+
+
+@django_db_cleanup_decorator
+def get_collection_queryset(user: UserType = Depends(get_authenticated_user)) -> QuerySet:
+    default_queryset: QuerySet = models.Collection.objects.all()
+    return default_queryset.filter(members__user=user)
+
+
+@django_db_cleanup_decorator
+def get_collection(collection_uid: str, queryset: QuerySet = Depends(get_collection_queryset)) -> models.Collection:
+    return get_object_or_404(queryset, uid=collection_uid)
+
+
+@django_db_cleanup_decorator
+def get_item_queryset(collection: models.Collection = Depends(get_collection)) -> QuerySet:
+    default_item_queryset: QuerySet = models.CollectionItem.objects.all()
+    # XXX Potentially add this for performance: .prefetch_related('revisions__chunks')
+    queryset = default_item_queryset.filter(collection__pk=collection.pk, revisions__current=True)
+
+    return queryset

server/etebase_fastapi/exceptions.py

@@ -0,0 +1,128 @@
+from fastapi import status, HTTPException
+import typing as t
+
+from pydantic import BaseModel
+from django.core.exceptions import ValidationError as DjangoValidationError
+
+
+class HttpErrorField(BaseModel):
+    field: str
+    code: str
+    detail: str
+
+    class Config:
+        orm_mode = True
+
+
+class HttpErrorOut(BaseModel):
+    code: str
+    detail: str
+    errors: t.Optional[t.List[HttpErrorField]]
+
+    class Config:
+        orm_mode = True
+
+
+class CustomHttpException(HTTPException):
+    def __init__(self, code: str, detail: str, status_code: int = status.HTTP_400_BAD_REQUEST):
+        self.code = code
+        super().__init__(status_code, detail)
+
+    @property
+    def as_dict(self) -> dict:
+        return {"code": self.code, "detail": self.detail}
+
+
+class AuthenticationFailed(CustomHttpException):
+    def __init__(
+        self,
+        code="authentication_failed",
+        detail: str = "Incorrect authentication credentials.",
+        status_code: int = status.HTTP_401_UNAUTHORIZED,
+    ):
+        super().__init__(code=code, detail=detail, status_code=status_code)
+
+
+class NotAuthenticated(CustomHttpException):
+    def __init__(
+        self,
+        code="not_authenticated",
+        detail: str = "Authentication credentials were not provided.",
+        status_code: int = status.HTTP_401_UNAUTHORIZED,
+    ):
+        super().__init__(code=code, detail=detail, status_code=status_code)
+
+
+class PermissionDenied(CustomHttpException):
+    def __init__(
+        self,
+        code="permission_denied",
+        detail: str = "You do not have permission to perform this action.",
+        status_code: int = status.HTTP_403_FORBIDDEN,
+    ):
+        super().__init__(code=code, detail=detail, status_code=status_code)
+
+
+class NotSupported(CustomHttpException):
+    def __init__(
+        self,
+        code="not_implemented",
+        detail: str = "This server's configuration does not support this request.",
+        status_code: int = status.HTTP_501_NOT_IMPLEMENTED,
+    ):
+        super().__init__(code=code, detail=detail, status_code=status_code)
+
+
+class HttpError(CustomHttpException):
+    def __init__(
+        self,
+        code: str,
+        detail: str,
+        status_code: int = status.HTTP_400_BAD_REQUEST,
+        errors: t.Optional[t.List["HttpError"]] = None,
+    ):
+        self.errors = errors
+        super().__init__(code=code or "generic_error", detail=detail, status_code=status_code)
+
+    @property
+    def as_dict(self) -> dict:
+        return HttpErrorOut(code=self.code, errors=self.errors, detail=self.detail).dict()
+
+
+class ValidationError(HttpError):
+    def __init__(
+        self,
+        code: str,
+        detail: str,
+        status_code: int = status.HTTP_400_BAD_REQUEST,
+        errors: t.Optional[t.List["HttpError"]] = None,
+        field: t.Optional[str] = None,
+    ):
+        self.field = field
+        super().__init__(code=code, detail=detail, errors=errors, status_code=status_code)
+
+
+def flatten_errors(field_name: str, errors) -> t.List[HttpError]:
+    ret: t.List[HttpError] = []
+    if isinstance(errors, dict):
+        for error_key in errors:
+            error = errors[error_key]
+            ret.extend(flatten_errors("{}.{}".format(field_name, error_key), error))
+    else:
+        for error in errors:
+            if error.messages:
+                message = error.messages[0]
+            else:
+                message = str(error)
+            ret.append(ValidationError(code=error.code or "validation_error", detail=message, field=field_name))
+    return ret
+
+
+def transform_validation_error(prefix: str, err: DjangoValidationError):
+    if hasattr(err, "error_dict"):
+        errors = flatten_errors(prefix, err.error_dict)
+    elif not hasattr(err, "message"):
+        errors = flatten_errors(prefix, err.error_list)
+    else:
+        raise HttpError(err.code or "validation_error", err.message)
+    raise HttpError(code="field_errors", detail="Field validations failed.", errors=errors)

server/etebase_fastapi/main.py

@@ -0,0 +1,80 @@
+from django.conf import settings
+
+# Not at the top of the file because we first need to setup django
+from fastapi import FastAPI, Request
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.middleware.trustedhost import TrustedHostMiddleware
+from fastapi.staticfiles import StaticFiles
+
+from django_etebase import app_settings
+
+from .exceptions import CustomHttpException
+from .msgpack import MsgpackResponse
+from .routers.authentication import authentication_router
+from .routers.collection import collection_router, item_router
+from .routers.member import member_router
+from .routers.invitation import invitation_incoming_router, invitation_outgoing_router
+from .routers.websocket import websocket_router
+
+
+def create_application(prefix="", middlewares=[]):
+    app = FastAPI(
+        title="Etebase",
+        description="The Etebase server API documentation",
+        externalDocs={
+            "url": "https://docs.etebase.com",
+            "description": "Docs about the API specifications and clients.",
+        }
+        # FIXME: version="2.5.0",
+    )
+    VERSION = "v1"
+    BASE_PATH = f"{prefix}/api/{VERSION}"
+    COLLECTION_UID_MARKER = "{collection_uid}"
+    app.include_router(authentication_router, prefix=f"{BASE_PATH}/authentication", tags=["authentication"])
+    app.include_router(collection_router, prefix=f"{BASE_PATH}/collection", tags=["collection"])
+    app.include_router(item_router, prefix=f"{BASE_PATH}/collection/{COLLECTION_UID_MARKER}", tags=["item"])
+    app.include_router(member_router, prefix=f"{BASE_PATH}/collection/{COLLECTION_UID_MARKER}", tags=["member"])
+    app.include_router(
+        invitation_incoming_router, prefix=f"{BASE_PATH}/invitation/incoming", tags=["incoming invitation"]
+    )
+    app.include_router(
+        invitation_outgoing_router, prefix=f"{BASE_PATH}/invitation/outgoing", tags=["outgoing invitation"]
+    )
+    app.include_router(websocket_router, prefix=f"{BASE_PATH}/ws", tags=["websocket"])
+
+    if settings.DEBUG:
+        from etebase_fastapi.routers.test_reset_view import test_reset_view_router
+
+        app.include_router(test_reset_view_router, prefix=f"{BASE_PATH}/test/authentication")
+
+    app.add_middleware(
+        CORSMiddleware,
+        allow_origin_regex="https?://.*",
+        allow_credentials=True,
+        allow_methods=["*"],
+        allow_headers=["*"],
+    )
+    app.add_middleware(TrustedHostMiddleware, allowed_hosts=settings.ALLOWED_HOSTS)
+
+    for middleware in middlewares:
+        app.add_middleware(middleware)
+
+    @app.on_event("startup")
+    async def on_startup() -> None:
+        from .redis import redisw
+
+        await redisw.setup()
+
+    @app.on_event("shutdown")
+    async def on_shutdown():
+        from .redis import redisw
+
+        await redisw.close()
+
+    @app.exception_handler(CustomHttpException)
+    async def custom_exception_handler(request: Request, exc: CustomHttpException):
+        return MsgpackResponse(status_code=exc.status_code, content=exc.as_dict)
+
+    app.mount(settings.STATIC_URL, StaticFiles(directory=settings.STATIC_ROOT), name="static")
+
+    return app

server/etebase_fastapi/msgpack.py

@@ -0,0 +1,76 @@
+import typing as t
+
+from fastapi.routing import APIRoute, get_request_handler
+from pydantic import BaseModel
+from starlette.requests import Request
+from starlette.responses import Response
+
+from .utils import msgpack_encode, msgpack_decode
+from .db_hack import django_db_cleanup_decorator
+
+
+class MsgpackRequest(Request):
+    media_type = "application/msgpack"
+
+    async def body(self) -> bytes:
+        if not hasattr(self, "_json"):
+            body = await super().body()
+            self._json = msgpack_decode(body)
+        return self._json
+
+
+class MsgpackResponse(Response):
+    media_type = "application/msgpack"
+
+    def render(self, content: t.Optional[t.Any]) -> bytes:
+        if content is None:
+            return b""
+
+        if isinstance(content, BaseModel):
+            content = content.dict()
+        return msgpack_encode(content)
+
+
+class MsgpackRoute(APIRoute):
+    # keep track of content-type -> request classes
+    REQUESTS_CLASSES = {MsgpackRequest.media_type: MsgpackRequest}
+    # keep track of content-type -> response classes
+    ROUTES_HANDLERS_CLASSES = {MsgpackResponse.media_type: MsgpackResponse}
+
+    def __init__(self, path: str, endpoint: t.Callable[..., t.Any], *args, **kwargs):
+        endpoint = django_db_cleanup_decorator(endpoint)
+        super().__init__(path, endpoint, *args, **kwargs)
+
+    def _get_media_type_route_handler(self, media_type):
+        return get_request_handler(
+            dependant=self.dependant,
+            body_field=self.body_field,
+            status_code=self.status_code,
+            # use custom response class or fallback on default self.response_class
+            response_class=self.ROUTES_HANDLERS_CLASSES.get(media_type, self.response_class),
+            response_field=self.secure_cloned_response_field,
+            response_model_include=self.response_model_include,
+            response_model_exclude=self.response_model_exclude,
+            response_model_by_alias=self.response_model_by_alias,
+            response_model_exclude_unset=self.response_model_exclude_unset,
+            response_model_exclude_defaults=self.response_model_exclude_defaults,
+            response_model_exclude_none=self.response_model_exclude_none,
+            dependency_overrides_provider=self.dependency_overrides_provider,
+        )
+
+    def get_route_handler(self) -> t.Callable:
+        async def custom_route_handler(request: Request) -> Response:
+
+            content_type = request.headers.get("Content-Type")
+            try:
+                request_cls = self.REQUESTS_CLASSES[content_type]
+                request = request_cls(request.scope, request.receive)
+            except KeyError:
+                # nothing registered to handle content_type, process given requests as-is
+                pass
+
+            accept = request.headers.get("Accept")
+            route_handler = self._get_media_type_route_handler(accept)
+            return await route_handler(request)
+
+        return custom_route_handler

server/etebase_fastapi/redis.py

@@ -0,0 +1,27 @@
+import typing as t
+import aioredis
+
+from django_etebase import app_settings
+
+
+class RedisWrapper:
+    redis: aioredis.Redis
+
+    def __init__(self, redis_uri: t.Optional[str]):
+        self.redis_uri = redis_uri
+
+    async def setup(self):
+        if self.redis_uri is not None:
+            self.redis = await aioredis.create_redis_pool(self.redis_uri)
+
+    async def close(self):
+        if self.redis is not None:
+            self.redis.close()
+            await self.redis.wait_closed()
+
+    @property
+    def is_active(self):
+        return self.redis_uri is not None
+
+
+redisw = RedisWrapper(app_settings.REDIS_URI)

server/etebase_fastapi/routers/authentication.py

@@ -0,0 +1,263 @@
+import typing as t
+from typing_extensions import Literal
+from datetime import datetime
+
+import nacl
+import nacl.encoding
+import nacl.hash
+import nacl.secret
+import nacl.signing
+from django.conf import settings
+from django.contrib.auth import user_logged_out, user_logged_in
+from django.core import exceptions as django_exceptions
+from django.db import transaction
+from django.utils.functional import cached_property
+from fastapi import APIRouter, Depends, status, Request
+
+from django_etebase import app_settings, models
+from django_etebase.token_auth.models import AuthToken
+from django_etebase.models import UserInfo
+from django_etebase.signals import user_signed_up
+from django_etebase.utils import create_user, get_user_queryset, CallbackContext
+from myauth.models import UserType, get_typed_user_model
+from ..exceptions import AuthenticationFailed, transform_validation_error, HttpError
+from ..msgpack import MsgpackRoute
+from ..utils import BaseModel, permission_responses, msgpack_encode, msgpack_decode, get_user_username_email_kwargs
+from ..dependencies import AuthData, get_auth_data, get_authenticated_user
+
+User = get_typed_user_model()
+authentication_router = APIRouter(route_class=MsgpackRoute)
+
+
+class LoginChallengeIn(BaseModel):
+    username: str
+
+
+class LoginChallengeOut(BaseModel):
+    salt: bytes
+    challenge: bytes
+    version: int
+
+
+class LoginResponse(BaseModel):
+    username: str
+    challenge: bytes
+    host: str
+    action: Literal["login", "changePassword"]
+
+
+class UserOut(BaseModel):
+    username: str
+    email: str
+    pubkey: bytes
+    encryptedContent: bytes
+
+    @classmethod
+    def from_orm(cls: t.Type["UserOut"], obj: UserType) -> "UserOut":
+        return cls(
+            username=obj.username,
+            email=obj.email,
+            pubkey=bytes(obj.userinfo.pubkey),
+            encryptedContent=bytes(obj.userinfo.encryptedContent),
+        )
+
+
+class LoginOut(BaseModel):
+    token: str
+    user: UserOut
+
+    @classmethod
+    def from_orm(cls: t.Type["LoginOut"], obj: UserType) -> "LoginOut":
+        token = AuthToken.objects.create(user=obj).key
+        user = UserOut.from_orm(obj)
+        return cls(token=token, user=user)
+
+
+class Authentication(BaseModel):
+    class Config:
+        keep_untouched = (cached_property,)
+
+    response: bytes
+    signature: bytes
+
+
+class Login(Authentication):
+    @cached_property
+    def response_data(self) -> LoginResponse:
+        return LoginResponse(**msgpack_decode(self.response))
+
+
+class ChangePasswordResponse(LoginResponse):
+    loginPubkey: bytes
+    encryptedContent: bytes
+
+
+class ChangePassword(Authentication):
+    @cached_property
+    def response_data(self) -> ChangePasswordResponse:
+        return ChangePasswordResponse(**msgpack_decode(self.response))
+
+
+class UserSignup(BaseModel):
+    username: str
+    email: str
+
+
+class SignupIn(BaseModel):
+    user: UserSignup
+    salt: bytes
+    loginPubkey: bytes
+    pubkey: bytes
+    encryptedContent: bytes
+
+
+def get_login_user(request: Request, challenge: LoginChallengeIn) -> UserType:
+    username = challenge.username
+
+    kwargs = get_user_username_email_kwargs(username)
+    try:
+        user_queryset = get_user_queryset(User.objects.all(), CallbackContext(request.path_params))
+        user = user_queryset.get(**kwargs)
+        if not hasattr(user, "userinfo"):
+            raise AuthenticationFailed(code="user_not_init", detail="User not properly init")
+        return user
+    except User.DoesNotExist:
+        raise AuthenticationFailed(code="user_not_found", detail="User not found")
+
+
+def get_encryption_key(salt: bytes):
+    key = nacl.hash.blake2b(settings.SECRET_KEY.encode(), encoder=nacl.encoding.RawEncoder)
+    return nacl.hash.blake2b(
+        b"",
+        key=key,
+        salt=salt[: nacl.hash.BLAKE2B_SALTBYTES],
+        person=b"etebase-auth",
+        encoder=nacl.encoding.RawEncoder,
+    )
+
+
+def save_changed_password(data: ChangePassword, user: UserType):
+    response_data = data.response_data
+    user_info: UserInfo = user.userinfo
+    user_info.loginPubkey = response_data.loginPubkey
+    user_info.encryptedContent = response_data.encryptedContent
+    user_info.save()
+
+
+def validate_login_request(
+    validated_data: LoginResponse,
+    challenge_sent_to_user: Authentication,
+    user: UserType,
+    expected_action: str,
+    host_from_request: str,
+):
+    enc_key = get_encryption_key(bytes(user.userinfo.salt))
+    box = nacl.secret.SecretBox(enc_key)
+    challenge_data = msgpack_decode(box.decrypt(validated_data.challenge))
+    now = int(datetime.now().timestamp())
+    if validated_data.action != expected_action:
+        raise HttpError("wrong_action", f'Expected "{expected_action}" but got something else')
+    elif now - challenge_data["timestamp"] > app_settings.CHALLENGE_VALID_SECONDS:
+        raise HttpError("challenge_expired", "Login challenge has expired")
+    elif challenge_data["userId"] != user.id:
+        raise HttpError("wrong_user", "This challenge is for the wrong user")
+    elif not settings.DEBUG and validated_data.host.split(":", 1)[0] != host_from_request.split(":", 1)[0]:
+        raise HttpError(
+            "wrong_host", f'Found wrong host name. Got: "{validated_data.host}" expected: "{host_from_request}"'
+        )
+    verify_key = nacl.signing.VerifyKey(bytes(user.userinfo.loginPubkey), encoder=nacl.encoding.RawEncoder)
+    try:
+        verify_key.verify(challenge_sent_to_user.response, challenge_sent_to_user.signature)
+    except nacl.exceptions.BadSignatureError:
+        raise HttpError("login_bad_signature", "Wrong password for user.", status.HTTP_401_UNAUTHORIZED)
+
+
+@authentication_router.get("/is_etebase/")
+async def is_etebase():
+    pass
+
+
+@authentication_router.post("/login_challenge/", response_model=LoginChallengeOut)
+def login_challenge(user: UserType = Depends(get_login_user)):
+    salt = bytes(user.userinfo.salt)
+    enc_key = get_encryption_key(salt)
+    box = nacl.secret.SecretBox(enc_key)
+    challenge_data = {
+        "timestamp": int(datetime.now().timestamp()),
+        "userId": user.id,
+    }
+    challenge = bytes(box.encrypt(msgpack_encode(challenge_data), encoder=nacl.encoding.RawEncoder))
+    return LoginChallengeOut(salt=salt, challenge=challenge, version=user.userinfo.version)
+
+
+@authentication_router.post("/login/", response_model=LoginOut)
+def login(data: Login, request: Request):
+    user = get_login_user(request, LoginChallengeIn(username=data.response_data.username))
+    host = request.headers.get("Host")
+    validate_login_request(data.response_data, data, user, "login", host)
+    ret = LoginOut.from_orm(user)
+    user_logged_in.send(sender=user.__class__, request=None, user=user)
+    return ret
+
+
+@authentication_router.post("/logout/", status_code=status.HTTP_204_NO_CONTENT, responses=permission_responses)
+def logout(auth_data: AuthData = Depends(get_auth_data)):
+    auth_data.token.delete()
+    user_logged_out.send(sender=auth_data.user.__class__, request=None, user=auth_data.user)
+
+
+@authentication_router.post("/change_password/", status_code=status.HTTP_204_NO_CONTENT, responses=permission_responses)
+def change_password(data: ChangePassword, request: Request, user: UserType = Depends(get_authenticated_user)):
+    host = request.headers.get("Host")
+    validate_login_request(data.response_data, data, user, "changePassword", host)
+    save_changed_password(data, user)
+
+
+@authentication_router.post("/dashboard_url/", responses=permission_responses)
+def dashboard_url(request: Request, user: UserType = Depends(get_authenticated_user)):
+    get_dashboard_url = app_settings.DASHBOARD_URL_FUNC
+    if get_dashboard_url is None:
+        raise HttpError("not_supported", "This server doesn't have a user dashboard.")
+
+    ret = {
+        "url": get_dashboard_url(CallbackContext(request.path_params, user=user)),
+    }
+    return ret
+
+
+def signup_save(data: SignupIn, request: Request) -> UserType:
+    user_data = data.user
+    with transaction.atomic():
+        try:
+            user_queryset = get_user_queryset(User.objects.all(), CallbackContext(request.path_params))
+            instance = user_queryset.get(**{User.USERNAME_FIELD: user_data.username.lower()})
+        except User.DoesNotExist:
+            # Create the user and save the casing the user chose as the first name
+            try:
+                instance = create_user(
+                    CallbackContext(request.path_params),
+                    **user_data.dict(),
+                    password=None,
+                    first_name=user_data.username,
+                )
+                instance.full_clean()
+            except HttpError as e:
+                raise e
+            except django_exceptions.ValidationError as e:
+                transform_validation_error("user", e)
+            except Exception as e:
+                raise HttpError("generic", str(e))
+
+        if hasattr(instance, "userinfo"):
+            raise HttpError("user_exists", "User already exists", status_code=status.HTTP_409_CONFLICT)
+
+        models.UserInfo.objects.create(**data.dict(exclude={"user"}), owner=instance)
+    return instance
+
+
+@authentication_router.post("/signup/", response_model=LoginOut, status_code=status.HTTP_201_CREATED)
+def signup(data: SignupIn, request: Request):
+    user = signup_save(data, request)
+    ret = LoginOut.from_orm(user)
+    user_signed_up.send(sender=user.__class__, request=None, user=user)
+    return ret

server/etebase_fastapi/routers/collection.py

@@ -0,0 +1,631 @@
+import typing as t
+
+from asgiref.sync import sync_to_async
+from django.core import exceptions as django_exceptions
+from django.core.files.base import ContentFile
+from django.db import transaction, IntegrityError
+from django.db.models import Q, QuerySet
+from fastapi import APIRouter, Depends, status, Request, BackgroundTasks
+
+from django_etebase import models
+from myauth.models import UserType
+from .authentication import get_authenticated_user
+from .websocket import get_ticket, TicketRequest, TicketOut
+from ..exceptions import HttpError, transform_validation_error, PermissionDenied, ValidationError
+from ..msgpack import MsgpackRoute
+from ..stoken_handler import filter_by_stoken_and_limit, filter_by_stoken, get_stoken_obj, get_queryset_stoken
+from ..utils import (
+    get_object_or_404,
+    Context,
+    Prefetch,
+    PrefetchQuery,
+    is_collection_admin,
+    msgpack_encode,
+    BaseModel,
+    permission_responses,
+    PERMISSIONS_READ,
+    PERMISSIONS_READWRITE,
+)
+from ..dependencies import get_collection_queryset, get_item_queryset, get_collection
+from ..sendfile import sendfile
+from ..redis import redisw
+from ..db_hack import django_db_cleanup_decorator
+
+collection_router = APIRouter(route_class=MsgpackRoute, responses=permission_responses)
+item_router = APIRouter(route_class=MsgpackRoute, responses=permission_responses)
+CollectionQuerySet = QuerySet[models.Collection]
+CollectionItemQuerySet = QuerySet[models.CollectionItem]
+
+
+class ListMulti(BaseModel):
+    collectionTypes: t.List[bytes]
+
+
+ChunkType = t.Tuple[str, t.Optional[bytes]]
+
+
+class CollectionItemRevisionInOut(BaseModel):
+    uid: str
+    meta: bytes
+    deleted: bool
+    chunks: t.List[ChunkType]
+
+    class Config:
+        orm_mode = True
+
+    @classmethod
+    def from_orm_context(
+        cls: t.Type["CollectionItemRevisionInOut"], obj: models.CollectionItemRevision, context: Context
+    ) -> "CollectionItemRevisionInOut":
+        chunks: t.List[ChunkType] = []
+        for chunk_relation in obj.chunks_relation.all():
+            chunk_obj = chunk_relation.chunk
+            if context.prefetch == "auto":
+                with open(chunk_obj.chunkFile.path, "rb") as f:
+                    chunks.append((chunk_obj.uid, f.read()))
+            else:
+                chunks.append((chunk_obj.uid, None))
+        return cls(uid=obj.uid, meta=bytes(obj.meta), deleted=obj.deleted, chunks=chunks)
+
+
+class CollectionItemCommon(BaseModel):
+    uid: str
+    version: int
+    encryptionKey: t.Optional[bytes]
+    content: CollectionItemRevisionInOut
+
+
+class CollectionItemOut(CollectionItemCommon):
+    class Config:
+        orm_mode = True
+
+    @classmethod
+    def from_orm_context(
+        cls: t.Type["CollectionItemOut"], obj: models.CollectionItem, context: Context
+    ) -> "CollectionItemOut":
+        return cls(
+            uid=obj.uid,
+            version=obj.version,
+            encryptionKey=obj.encryptionKey,
+            content=CollectionItemRevisionInOut.from_orm_context(obj.content, context),
+        )
+
+
+class CollectionItemIn(CollectionItemCommon):
+    etag: t.Optional[str]
+
+
+class CollectionCommon(BaseModel):
+    # FIXME: remove optional once we finish collection-type-migration
+    collectionType: t.Optional[bytes]
+    collectionKey: bytes
+
+
+class CollectionOut(CollectionCommon):
+    accessLevel: models.AccessLevels
+    stoken: str
+    item: CollectionItemOut
+
+    @classmethod
+    def from_orm_context(cls: t.Type["CollectionOut"], obj: models.Collection, context: Context) -> "CollectionOut":
+        member: models.CollectionMember = obj.members.get(user=context.user)
+        collection_type = member.collectionType
+        assert obj.main_item is not None
+        ret = cls(
+            collectionType=collection_type and bytes(collection_type.uid),
+            collectionKey=bytes(member.encryptionKey),
+            accessLevel=member.accessLevel,
+            stoken=obj.stoken,
+            item=CollectionItemOut.from_orm_context(obj.main_item, context),
+        )
+        return ret
+
+
+class CollectionIn(CollectionCommon):
+    item: CollectionItemIn
+
+
+class RemovedMembershipOut(BaseModel):
+    uid: str
+
+
+class CollectionListResponse(BaseModel):
+    data: t.List[CollectionOut]
+    stoken: t.Optional[str]
+    done: bool
+
+    removedMemberships: t.Optional[t.List[RemovedMembershipOut]]
+
+
+class CollectionItemListResponse(BaseModel):
+    data: t.List[CollectionItemOut]
+    stoken: t.Optional[str]
+    done: bool
+
+
+class CollectionItemRevisionListResponse(BaseModel):
+    data: t.List[CollectionItemRevisionInOut]
+    iterator: t.Optional[str]
+    done: bool
+
+
+class CollectionItemBulkGetIn(BaseModel):
+    uid: str
+    etag: t.Optional[str]
+
+
+class ItemDepIn(BaseModel):
+    uid: str
+    etag: str
+
+    def validate_db(self):
+        item = models.CollectionItem.objects.get(uid=self.uid)
+        etag = self.etag
+        if item.etag != etag:
+            raise ValidationError(
+                "wrong_etag",
+                "Wrong etag. Expected {} got {}".format(item.etag, etag),
+                status_code=status.HTTP_409_CONFLICT,
+                field=self.uid,
+            )
+
+
+class ItemBatchIn(BaseModel):
+    items: t.List[CollectionItemIn]
+    deps: t.Optional[t.List[ItemDepIn]]
+
+    def validate_db(self):
+        if self.deps is not None:
+            errors: t.List[HttpError] = []
+            for dep in self.deps:
+                try:
+                    dep.validate_db()
+                except ValidationError as e:
+                    errors.append(e)
+            if len(errors) > 0:
+                raise ValidationError(
+                    code="dep_failed",
+                    detail="Dependencies failed to validate",
+                    errors=errors,
+                    status_code=status.HTTP_409_CONFLICT,
+                )
+
+
+async def report_items_changed(col_uid: str, stoken: str, items: t.List[CollectionItemIn]):
+    if not redisw.is_active:
+        return
+
+    redis = redisw.redis
+    content = msgpack_encode(CollectionItemListResponse(data=items, stoken=stoken, done=True).dict())
+    await redis.publish(f"col.{col_uid}", content)
+
+
+def collection_list_common(
+    queryset: CollectionQuerySet,
+    user: UserType,
+    stoken: t.Optional[str],
+    limit: int,
+    prefetch: Prefetch,
+) -> CollectionListResponse:
+    result, new_stoken_obj, done = filter_by_stoken_and_limit(
+        stoken, limit, queryset, models.Collection.stoken_annotation
+    )
+    new_stoken = new_stoken_obj and new_stoken_obj.uid
+    context = Context(user, prefetch)
+    data: t.List[CollectionOut] = [CollectionOut.from_orm_context(item, context) for item in result]
+
+    ret = CollectionListResponse(data=data, stoken=new_stoken, done=done)
+
+    stoken_obj = get_stoken_obj(stoken)
+    if stoken_obj is not None:
+        # FIXME: honour limit? (the limit should be combined for data and this because of stoken)
+        remed_qs = models.CollectionMemberRemoved.objects.filter(user=user, stoken__id__gt=stoken_obj.id)
+        if not done and new_stoken_obj is not None:
+            # We only filter by the new_stoken if we are not done. This is because if we are done, the new stoken
+            # can point to the most recent collection change rather than most recent removed membership.
+            remed_qs = remed_qs.filter(stoken__id__lte=new_stoken_obj.id)
+
+        remed = remed_qs.values_list("collection__uid", flat=True)
+        if len(remed) > 0:
+            ret.removedMemberships = [RemovedMembershipOut(uid=x) for x in remed]
+
+    return ret
+
+
+# permissions
+
+
+@django_db_cleanup_decorator
+def verify_collection_admin(
+    collection: models.Collection = Depends(get_collection), user: UserType = Depends(get_authenticated_user)
+):
+    if not is_collection_admin(collection, user):
+        raise PermissionDenied("admin_access_required", "Only collection admins can perform this operation.")
+
+
+@django_db_cleanup_decorator
+def has_write_access(
+    collection: models.Collection = Depends(get_collection), user: UserType = Depends(get_authenticated_user)
+):
+    member = collection.members.get(user=user)
+    if member.accessLevel == models.AccessLevels.READ_ONLY:
+        raise PermissionDenied("no_write_access", "You need write access to write to this collection")
+
+
+# paths
+
+
+@collection_router.post(
+    "/list_multi/",
+    response_model=CollectionListResponse,
+    response_model_exclude_unset=True,
+    dependencies=PERMISSIONS_READ,
+)
+def list_multi(
+    data: ListMulti,
+    stoken: t.Optional[str] = None,
+    limit: int = 50,
+    queryset: CollectionQuerySet = Depends(get_collection_queryset),
+    user: UserType = Depends(get_authenticated_user),
+    prefetch: Prefetch = PrefetchQuery,
+):
+    # FIXME: Remove the isnull part once we attach collection types to all objects ("collection-type-migration")
+    queryset = queryset.filter(
+        Q(members__collectionType__uid__in=data.collectionTypes) | Q(members__collectionType__isnull=True)
+    )
+
+    return collection_list_common(queryset, user, stoken, limit, prefetch)
+
+
+@collection_router.get("/", response_model=CollectionListResponse, dependencies=PERMISSIONS_READ)
+def collection_list(
+    stoken: t.Optional[str] = None,
+    limit: int = 50,
+    prefetch: Prefetch = PrefetchQuery,
+    user: UserType = Depends(get_authenticated_user),
+    queryset: CollectionQuerySet = Depends(get_collection_queryset),
+):
+    return collection_list_common(queryset, user, stoken, limit, prefetch)
+
+
+def process_revisions_for_item(item: models.CollectionItem, revision_data: CollectionItemRevisionInOut):
+    chunks_objs = []
+
+    revision = models.CollectionItemRevision(**revision_data.dict(exclude={"chunks"}), item=item)
+    revision.validate_unique()  # Verify there aren't any validation issues
+
+    for chunk in revision_data.chunks:
+        uid = chunk[0]
+        chunk_obj = models.CollectionItemChunk.objects.filter(uid=uid).first()
+        content = chunk[1] if len(chunk) > 1 else None
+        # If the chunk already exists we assume it's fine. Otherwise, we upload it.
+        if chunk_obj is None:
+            if content is not None:
+                chunk_obj = models.CollectionItemChunk(uid=uid, collection=item.collection)
+                chunk_obj.chunkFile.save("IGNORED", ContentFile(content))
+                chunk_obj.save()
+            else:
+                raise ValidationError("chunk_no_content", "Tried to create a new chunk without content")
+
+        chunks_objs.append(chunk_obj)
+
+    stoken = models.Stoken.objects.create()
+    revision.stoken = stoken
+    revision.save()
+
+    for chunk2 in chunks_objs:
+        models.RevisionChunkRelation.objects.create(chunk=chunk2, revision=revision)
+    return revision
+
+
+def _create(data: CollectionIn, user: UserType):
+    with transaction.atomic():
+        if data.item.etag is not None:
+            raise ValidationError("bad_etag", "etag is not null")
+        instance = models.Collection(uid=data.item.uid, owner=user)
+        try:
+            instance.validate_unique()
+        except django_exceptions.ValidationError:
+            raise ValidationError(
+                "unique_uid", "Collection with this uid already exists", status_code=status.HTTP_409_CONFLICT
+            )
+        instance.save()
+
+        main_item = models.CollectionItem.objects.create(
+            uid=data.item.uid, version=data.item.version, collection=instance
+        )
+
+        instance.main_item = main_item
+        instance.save()
+
+        # TODO
+        process_revisions_for_item(main_item, data.item.content)
+
+        collection_type_obj, _ = models.CollectionType.objects.get_or_create(uid=data.collectionType, owner=user)
+
+        models.CollectionMember(
+            collection=instance,
+            stoken=models.Stoken.objects.create(),
+            user=user,
+            accessLevel=models.AccessLevels.ADMIN,
+            encryptionKey=data.collectionKey,
+            collectionType=collection_type_obj,
+        ).save()
+
+
+@collection_router.post("/", status_code=status.HTTP_201_CREATED, dependencies=PERMISSIONS_READWRITE)
+def create(data: CollectionIn, user: UserType = Depends(get_authenticated_user)):
+    _create(data, user)
+
+
+@collection_router.get("/{collection_uid}/", response_model=CollectionOut, dependencies=PERMISSIONS_READ)
+def collection_get(
+    obj: models.Collection = Depends(get_collection),
+    user: UserType = Depends(get_authenticated_user),
+    prefetch: Prefetch = PrefetchQuery,
+):
+    return CollectionOut.from_orm_context(obj, Context(user, prefetch))
+
+
+def item_create(item_model: CollectionItemIn, collection: models.Collection, validate_etag: bool):
+    """Function that's called when this serializer creates an item"""
+    etag = item_model.etag
+    revision_data = item_model.content
+    uid = item_model.uid
+
+    Model = models.CollectionItem
+
+    with transaction.atomic():
+        instance, created = Model.objects.get_or_create(
+            uid=uid, collection=collection, defaults=item_model.dict(exclude={"uid", "etag", "content"})
+        )
+        cur_etag = instance.etag if not created else None
+
+        # If we are trying to update an up to date item, abort early and consider it a success
+        if cur_etag == revision_data.uid:
+            return instance
+
+        if validate_etag and cur_etag != etag:
+            raise ValidationError(
+                "wrong_etag",
+                "Wrong etag. Expected {} got {}".format(cur_etag, etag),
+                status_code=status.HTTP_409_CONFLICT,
+                field=uid,
+            )
+
+        if not created:
+            # We don't have to use select_for_update here because the unique constraint on current guards against
+            # the race condition. But it's a good idea because it'll lock and wait rather than fail.
+            current_revision = instance.revisions.filter(current=True).select_for_update().first()
+            assert current_revision is not None
+            current_revision.current = None
+            current_revision.save()
+
+        try:
+            process_revisions_for_item(instance, revision_data)
+        except django_exceptions.ValidationError as e:
+            transform_validation_error("content", e)
+
+    return instance
+
+
+@item_router.get("/item/{item_uid}/", response_model=CollectionItemOut, dependencies=PERMISSIONS_READ)
+def item_get(
+    item_uid: str,
+    queryset: CollectionItemQuerySet = Depends(get_item_queryset),
+    user: UserType = Depends(get_authenticated_user),
+    prefetch: Prefetch = PrefetchQuery,
+):
+    obj = queryset.get(uid=item_uid)
+    return CollectionItemOut.from_orm_context(obj, Context(user, prefetch))
+
+
+def item_list_common(
+    queryset: CollectionItemQuerySet,
+    user: UserType,
+    stoken: t.Optional[str],
+    limit: int,
+    prefetch: Prefetch,
+) -> CollectionItemListResponse:
+    result, new_stoken_obj, done = filter_by_stoken_and_limit(
+        stoken, limit, queryset, models.CollectionItem.stoken_annotation
+    )
+    new_stoken = new_stoken_obj and new_stoken_obj.uid
+    context = Context(user, prefetch)
+    data: t.List[CollectionItemOut] = [CollectionItemOut.from_orm_context(item, context) for item in result]
+    return CollectionItemListResponse(data=data, stoken=new_stoken, done=done)
+
+
+@item_router.get("/item/", response_model=CollectionItemListResponse, dependencies=PERMISSIONS_READ)
+def item_list(
+    queryset: CollectionItemQuerySet = Depends(get_item_queryset),
+    stoken: t.Optional[str] = None,
+    limit: int = 50,
+    prefetch: Prefetch = PrefetchQuery,
+    withCollection: bool = False,
+    user: UserType = Depends(get_authenticated_user),
+):
+    if not withCollection:
+        queryset = queryset.filter(parent__isnull=True)
+
+    response = item_list_common(queryset, user, stoken, limit, prefetch)
+    return response
+
+
+@item_router.post("/item/subscription-ticket/", response_model=TicketOut, dependencies=PERMISSIONS_READ)
+async def item_list_subscription_ticket(
+    collection: models.Collection = Depends(get_collection),
+    user: UserType = Depends(get_authenticated_user),
+):
+    """Get an authentication ticket that can be used with the websocket endpoint"""
+    return await get_ticket(TicketRequest(collection=collection.uid), user)
+
+
+def item_bulk_common(
+    data: ItemBatchIn,
+    user: UserType,
+    stoken: t.Optional[str],
+    uid: str,
+    validate_etag: bool,
+    background_tasks: BackgroundTasks,
+):
+    queryset = get_collection_queryset(user)
+    with transaction.atomic():  # We need this for locking the collection object
+        collection_object = queryset.select_for_update().get(uid=uid)
+
+        if stoken and stoken != collection_object.stoken:
+            raise HttpError("stale_stoken", "Stoken is too old", status_code=status.HTTP_409_CONFLICT)
+
+        data.validate_db()
+
+        errors: t.List[HttpError] = []
+        for item in data.items:
+            try:
+                item_create(item, collection_object, validate_etag)
+            except ValidationError as e:
+                errors.append(e)
+
+        if len(errors) > 0:
+            raise ValidationError(
+                code="item_failed",
+                detail="Items failed to validate",
+                errors=errors,
+                status_code=status.HTTP_409_CONFLICT,
+            )
+
+    background_tasks.add_task(report_items_changed, collection_object.uid, collection_object.stoken, data.items)
+
+
+@item_router.get(
+    "/item/{item_uid}/revision/", response_model=CollectionItemRevisionListResponse, dependencies=PERMISSIONS_READ
+)
+def item_revisions(
+    item_uid: str,
+    limit: int = 50,
+    iterator: t.Optional[str] = None,
+    prefetch: Prefetch = PrefetchQuery,
+    user: UserType = Depends(get_authenticated_user),
+    items: CollectionItemQuerySet = Depends(get_item_queryset),
+):
+    item = get_object_or_404(items, uid=item_uid)
+
+    queryset = item.revisions.order_by("-id")
+
+    if iterator is not None:
+        iterator_obj = get_object_or_404(queryset, uid=iterator)
+        queryset = queryset.filter(id__lt=iterator_obj.id)
+
+    result = list(queryset[: limit + 1])
+    if len(result) < limit + 1:
+        done = True
+    else:
+        done = False
+        result = result[:-1]
+
+    context = Context(user, prefetch)
+    ret_data = [CollectionItemRevisionInOut.from_orm_context(revision, context) for revision in result]
+    iterator = ret_data[-1].uid if len(result) > 0 else None
+
+    return CollectionItemRevisionListResponse(
+        data=ret_data,
+        iterator=iterator,
+        done=done,
+    )
+
+
+@item_router.post("/item/fetch_updates/", response_model=CollectionItemListResponse, dependencies=PERMISSIONS_READ)
+def fetch_updates(
+    data: t.List[CollectionItemBulkGetIn],
+    stoken: t.Optional[str] = None,
+    prefetch: Prefetch = PrefetchQuery,
+    user: UserType = Depends(get_authenticated_user),
+    queryset: CollectionItemQuerySet = Depends(get_item_queryset),
+):
+    # FIXME: make configurable?
+    item_limit = 200
+
+    if len(data) > item_limit:
+        raise HttpError("too_many_items", "Request has too many items.", status_code=status.HTTP_400_BAD_REQUEST)
+
+    queryset, stoken_rev = filter_by_stoken(stoken, queryset, models.CollectionItem.stoken_annotation)
+
+    uids, etags = zip(*[(item.uid, item.etag) for item in data])
+    revs = models.CollectionItemRevision.objects.filter(uid__in=etags, current=True)
+    queryset = queryset.filter(uid__in=uids).exclude(revisions__in=revs)
+
+    new_stoken_obj = get_queryset_stoken(queryset)
+    new_stoken = new_stoken_obj and new_stoken_obj.uid
+    stoken_rev_uid = stoken_rev and getattr(stoken_rev, "uid", None)
+    new_stoken = new_stoken or stoken_rev_uid
+
+    context = Context(user, prefetch)
+    return CollectionItemListResponse(
+        data=[CollectionItemOut.from_orm_context(item, context) for item in queryset],
+        stoken=new_stoken,
+        done=True,  # we always return all the items, so it's always done
+    )
+
+
+@item_router.post("/item/transaction/", dependencies=[Depends(has_write_access), *PERMISSIONS_READWRITE])
+def item_transaction(
+    collection_uid: str,
+    data: ItemBatchIn,
+    background_tasks: BackgroundTasks,
+    stoken: t.Optional[str] = None,
+    user: UserType = Depends(get_authenticated_user),
+):
+    return item_bulk_common(data, user, stoken, collection_uid, validate_etag=True, background_tasks=background_tasks)
+
+
+@item_router.post("/item/batch/", dependencies=[Depends(has_write_access), *PERMISSIONS_READWRITE])
+def item_batch(
+    collection_uid: str,
+    data: ItemBatchIn,
+    background_tasks: BackgroundTasks,
+    stoken: t.Optional[str] = None,
+    user: UserType = Depends(get_authenticated_user),
+):
+    return item_bulk_common(data, user, stoken, collection_uid, validate_etag=False, background_tasks=background_tasks)
+
+
+# Chunks
+
+
+@sync_to_async
+def chunk_save(chunk_uid: str, collection: models.Collection, content_file: ContentFile):
+    chunk_obj = models.CollectionItemChunk(uid=chunk_uid, collection=collection)
+    chunk_obj.chunkFile.save("IGNORED", content_file)
+    chunk_obj.save()
+    return chunk_obj
+
+
+@item_router.put(
+    "/item/{item_uid}/chunk/{chunk_uid}/",
+    dependencies=[Depends(has_write_access), *PERMISSIONS_READWRITE],
+    status_code=status.HTTP_201_CREATED,
+)
+async def chunk_update(
+    request: Request,
+    chunk_uid: str,
+    collection: models.Collection = Depends(get_collection),
+):
+    # IGNORED FOR NOW: col_it = get_object_or_404(col.items, uid=collection_item_uid)
+    content_file = ContentFile(await request.body())
+    try:
+        await chunk_save(chunk_uid, collection, content_file)
+    except IntegrityError:
+        raise HttpError("chunk_exists", "Chunk already exists.", status_code=status.HTTP_409_CONFLICT)
+
+
+@item_router.get(
+    "/item/{item_uid}/chunk/{chunk_uid}/download/",
+    dependencies=PERMISSIONS_READ,
+)
+def chunk_download(
+    chunk_uid: str,
+    collection: models.Collection = Depends(get_collection),
+):
+    chunk = get_object_or_404(collection.chunks, uid=chunk_uid)
+
+    filename = chunk.chunkFile.path
+    return sendfile(filename)

server/etebase_fastapi/routers/invitation.py

@@ -0,0 +1,244 @@
+import typing as t
+
+from django.db import transaction, IntegrityError
+from django.db.models import QuerySet
+from fastapi import APIRouter, Depends, status, Request
+
+from django_etebase import models
+from django_etebase.utils import get_user_queryset, CallbackContext
+from myauth.models import UserType, get_typed_user_model
+from .authentication import get_authenticated_user
+from ..exceptions import HttpError, PermissionDenied
+from ..msgpack import MsgpackRoute
+from ..utils import (
+    get_object_or_404,
+    get_user_username_email_kwargs,
+    Context,
+    is_collection_admin,
+    BaseModel,
+    permission_responses,
+    PERMISSIONS_READ,
+    PERMISSIONS_READWRITE,
+)
+from ..db_hack import django_db_cleanup_decorator
+
+User = get_typed_user_model()
+invitation_incoming_router = APIRouter(route_class=MsgpackRoute, responses=permission_responses)
+invitation_outgoing_router = APIRouter(route_class=MsgpackRoute, responses=permission_responses)
+InvitationQuerySet = QuerySet[models.CollectionInvitation]
+default_queryset: InvitationQuerySet = models.CollectionInvitation.objects.all()
+
+
+class UserInfoOut(BaseModel):
+    pubkey: bytes
+
+    class Config:
+        orm_mode = True
+
+    @classmethod
+    def from_orm(cls: t.Type["UserInfoOut"], obj: models.UserInfo) -> "UserInfoOut":
+        return cls(pubkey=bytes(obj.pubkey))
+
+
+class CollectionInvitationAcceptIn(BaseModel):
+    collectionType: bytes
+    encryptionKey: bytes
+
+
+class CollectionInvitationCommon(BaseModel):
+    uid: str
+    version: int
+    accessLevel: models.AccessLevels
+    username: str
+    collection: str
+    signedEncryptionKey: bytes
+
+
+class CollectionInvitationIn(CollectionInvitationCommon):
+    def validate_db(self, context: Context):
+        user = context.user
+        if user is not None and (user.username == self.username.lower()):
+            raise HttpError("no_self_invite", "Inviting yourself is not allowed")
+
+
+class CollectionInvitationOut(CollectionInvitationCommon):
+    fromUsername: str
+    fromPubkey: bytes
+
+    class Config:
+        orm_mode = True
+
+    @classmethod
+    def from_orm(cls: t.Type["CollectionInvitationOut"], obj: models.CollectionInvitation) -> "CollectionInvitationOut":
+        return cls(
+            uid=obj.uid,
+            version=obj.version,
+            accessLevel=obj.accessLevel,
+            username=obj.user.username,
+            collection=obj.collection.uid,
+            fromUsername=obj.fromMember.user.username,
+            fromPubkey=bytes(obj.fromMember.user.userinfo.pubkey),
+            signedEncryptionKey=bytes(obj.signedEncryptionKey),
+        )
+
+
+class InvitationListResponse(BaseModel):
+    data: t.List[CollectionInvitationOut]
+    iterator: t.Optional[str]
+    done: bool
+
+
+@django_db_cleanup_decorator
+def get_incoming_queryset(user: UserType = Depends(get_authenticated_user)):
+    return default_queryset.filter(user=user)
+
+
+@django_db_cleanup_decorator
+def get_outgoing_queryset(user: UserType = Depends(get_authenticated_user)):
+    return default_queryset.filter(fromMember__user=user)
+
+
+def list_common(
+    queryset: InvitationQuerySet,
+    iterator: t.Optional[str],
+    limit: int,
+) -> InvitationListResponse:
+    queryset = queryset.order_by("id")
+
+    if iterator is not None:
+        iterator_obj = get_object_or_404(queryset, uid=iterator)
+        queryset = queryset.filter(id__gt=iterator_obj.id)
+
+    result = list(queryset[: limit + 1])
+    if len(result) < limit + 1:
+        done = True
+    else:
+        done = False
+        result = result[:-1]
+
+    ret_data = result
+    iterator = ret_data[-1].uid if len(result) > 0 else None
+
+    return InvitationListResponse(
+        data=ret_data,
+        iterator=iterator,
+        done=done,
+    )
+
+
+@invitation_incoming_router.get("/", response_model=InvitationListResponse, dependencies=PERMISSIONS_READ)
+def incoming_list(
+    iterator: t.Optional[str] = None,
+    limit: int = 50,
+    queryset: InvitationQuerySet = Depends(get_incoming_queryset),
+):
+    return list_common(queryset, iterator, limit)
+
+
+@invitation_incoming_router.get(
+    "/{invitation_uid}/", response_model=CollectionInvitationOut, dependencies=PERMISSIONS_READ
+)
+def incoming_get(
+    invitation_uid: str,
+    queryset: InvitationQuerySet = Depends(get_incoming_queryset),
+):
+    obj = get_object_or_404(queryset, uid=invitation_uid)
+    return CollectionInvitationOut.from_orm(obj)
+
+
+@invitation_incoming_router.delete(
+    "/{invitation_uid}/", status_code=status.HTTP_204_NO_CONTENT, dependencies=PERMISSIONS_READWRITE
+)
+def incoming_delete(
+    invitation_uid: str,
+    queryset: InvitationQuerySet = Depends(get_incoming_queryset),
+):
+    obj = get_object_or_404(queryset, uid=invitation_uid)
+    obj.delete()
+
+
+@invitation_incoming_router.post(
+    "/{invitation_uid}/accept/", status_code=status.HTTP_201_CREATED, dependencies=PERMISSIONS_READWRITE
+)
+def incoming_accept(
+    invitation_uid: str,
+    data: CollectionInvitationAcceptIn,
+    queryset: InvitationQuerySet = Depends(get_incoming_queryset),
+):
+    invitation = get_object_or_404(queryset, uid=invitation_uid)
+
+    with transaction.atomic():
+        user = invitation.user
+        collection_type_obj, _ = models.CollectionType.objects.get_or_create(uid=data.collectionType, owner=user)
+
+        models.CollectionMember.objects.create(
+            collection=invitation.collection,
+            stoken=models.Stoken.objects.create(),
+            user=user,
+            accessLevel=invitation.accessLevel,
+            encryptionKey=data.encryptionKey,
+            collectionType=collection_type_obj,
+        )
+
+        models.CollectionMemberRemoved.objects.filter(user=invitation.user, collection=invitation.collection).delete()
+
+        invitation.delete()
+
+
+@invitation_outgoing_router.post("/", status_code=status.HTTP_201_CREATED, dependencies=PERMISSIONS_READWRITE)
+def outgoing_create(
+    data: CollectionInvitationIn,
+    request: Request,
+    user: UserType = Depends(get_authenticated_user),
+):
+    collection = get_object_or_404(models.Collection.objects, uid=data.collection)
+    kwargs = get_user_username_email_kwargs(data.username)
+    to_user = get_object_or_404(get_user_queryset(User.objects.all(), CallbackContext(request.path_params)), **kwargs)
+
+    context = Context(user, None)
+    data.validate_db(context)
+
+    if not is_collection_admin(collection, user):
+        raise PermissionDenied("admin_access_required", "User is not an admin of this collection")
+
+    member = collection.members.get(user=user)
+
+    with transaction.atomic():
+        try:
+            models.CollectionInvitation.objects.create(
+                **data.dict(exclude={"collection", "username"}), user=to_user, fromMember=member
+            )
+        except IntegrityError:
+            raise HttpError("invitation_exists", "Invitation already exists")
+
+
+@invitation_outgoing_router.get("/", response_model=InvitationListResponse, dependencies=PERMISSIONS_READ)
+def outgoing_list(
+    iterator: t.Optional[str] = None,
+    limit: int = 50,
+    queryset: InvitationQuerySet = Depends(get_outgoing_queryset),
+):
+    return list_common(queryset, iterator, limit)
+
+
+@invitation_outgoing_router.delete(
+    "/{invitation_uid}/", status_code=status.HTTP_204_NO_CONTENT, dependencies=PERMISSIONS_READWRITE
+)
+def outgoing_delete(
+    invitation_uid: str,
+    queryset: InvitationQuerySet = Depends(get_outgoing_queryset),
+):
+    obj = get_object_or_404(queryset, uid=invitation_uid)
+    obj.delete()
+
+
+@invitation_outgoing_router.get("/fetch_user_profile/", response_model=UserInfoOut, dependencies=PERMISSIONS_READ)
+def outgoing_fetch_user_profile(
+    username: str,
+    request: Request,
+    user: UserType = Depends(get_authenticated_user),
+):
+    kwargs = get_user_username_email_kwargs(username)
+    user = get_object_or_404(get_user_queryset(User.objects.all(), CallbackContext(request.path_params)), **kwargs)
+    user_info = get_object_or_404(models.UserInfo.objects.all(), owner=user)
+    return UserInfoOut.from_orm(user_info)

server/etebase_fastapi/routers/member.py

@@ -0,0 +1,109 @@
+import typing as t
+
+from django.db import transaction
+from django.db.models import QuerySet
+from fastapi import APIRouter, Depends, status
+
+from django_etebase import models
+from myauth.models import UserType, get_typed_user_model
+from .authentication import get_authenticated_user
+from ..msgpack import MsgpackRoute
+from ..utils import get_object_or_404, BaseModel, permission_responses, PERMISSIONS_READ, PERMISSIONS_READWRITE
+from ..stoken_handler import filter_by_stoken_and_limit
+from ..db_hack import django_db_cleanup_decorator
+
+from .collection import get_collection, verify_collection_admin
+
+User = get_typed_user_model()
+member_router = APIRouter(route_class=MsgpackRoute, responses=permission_responses)
+MemberQuerySet = QuerySet[models.CollectionMember]
+default_queryset: MemberQuerySet = models.CollectionMember.objects.all()
+
+
+@django_db_cleanup_decorator
+def get_queryset(collection: models.Collection = Depends(get_collection)) -> MemberQuerySet:
+    return default_queryset.filter(collection=collection)
+
+
+@django_db_cleanup_decorator
+def get_member(username: str, queryset: MemberQuerySet = Depends(get_queryset)) -> models.CollectionMember:
+    return get_object_or_404(queryset, user__username__iexact=username)
+
+
+class CollectionMemberModifyAccessLevelIn(BaseModel):
+    accessLevel: models.AccessLevels
+
+
+class CollectionMemberOut(BaseModel):
+    username: str
+    accessLevel: models.AccessLevels
+
+    class Config:
+        orm_mode = True
+
+    @classmethod
+    def from_orm(cls: t.Type["CollectionMemberOut"], obj: models.CollectionMember) -> "CollectionMemberOut":
+        return cls(username=obj.user.username, accessLevel=obj.accessLevel)
+
+
+class MemberListResponse(BaseModel):
+    data: t.List[CollectionMemberOut]
+    iterator: t.Optional[str]
+    done: bool
+
+
+@member_router.get(
+    "/member/", response_model=MemberListResponse, dependencies=[Depends(verify_collection_admin), *PERMISSIONS_READ]
+)
+def member_list(
+    iterator: t.Optional[str] = None,
+    limit: int = 50,
+    queryset: MemberQuerySet = Depends(get_queryset),
+):
+    queryset = queryset.order_by("id")
+    result, new_stoken_obj, done = filter_by_stoken_and_limit(
+        iterator, limit, queryset, models.CollectionMember.stoken_annotation
+    )
+    new_stoken = new_stoken_obj and new_stoken_obj.uid
+
+    return MemberListResponse(
+        data=[CollectionMemberOut.from_orm(item) for item in result],
+        iterator=new_stoken,
+        done=done,
+    )
+
+
+@member_router.delete(
+    "/member/{username}/",
+    status_code=status.HTTP_204_NO_CONTENT,
+    dependencies=[Depends(verify_collection_admin), *PERMISSIONS_READWRITE],
+)
+def member_delete(
+    obj: models.CollectionMember = Depends(get_member),
+):
+    obj.revoke()
+
+
+@member_router.patch(
+    "/member/{username}/",
+    status_code=status.HTTP_204_NO_CONTENT,
+    dependencies=[Depends(verify_collection_admin), *PERMISSIONS_READWRITE],
+)
+def member_patch(
+    data: CollectionMemberModifyAccessLevelIn,
+    instance: models.CollectionMember = Depends(get_member),
+):
+    with transaction.atomic():
+        # We only allow updating accessLevel
+        if instance.accessLevel != data.accessLevel:
+            instance.stoken = models.Stoken.objects.create()
+            instance.accessLevel = data.accessLevel
+            instance.save()
+
+
+@member_router.post("/member/leave/", status_code=status.HTTP_204_NO_CONTENT, dependencies=PERMISSIONS_READ)
+def member_leave(
+    user: UserType = Depends(get_authenticated_user), collection: models.Collection = Depends(get_collection)
+):
+    obj = get_object_or_404(collection.members, user=user)
+    obj.revoke()

server/etebase_fastapi/routers/test_reset_view.py

@@ -0,0 +1,38 @@
+from django.conf import settings
+from django.db import transaction
+from django.shortcuts import get_object_or_404
+from fastapi import APIRouter, Request, status
+
+from django_etebase.utils import get_user_queryset, CallbackContext
+from .authentication import SignupIn, signup_save
+from ..msgpack import MsgpackRoute
+from ..exceptions import HttpError
+from myauth.models import get_typed_user_model
+
+test_reset_view_router = APIRouter(route_class=MsgpackRoute, tags=["test helpers"])
+User = get_typed_user_model()
+
+
+@test_reset_view_router.post("/reset/", status_code=status.HTTP_204_NO_CONTENT)
+def reset(data: SignupIn, request: Request):
+    # Only run when in DEBUG mode! It's only used for tests
+    if not settings.DEBUG:
+        raise HttpError(code="generic", detail="Only allowed in debug mode.")
+
+    with transaction.atomic():
+        user_queryset = get_user_queryset(User.objects.all(), CallbackContext(request.path_params))
+        user = get_object_or_404(user_queryset, username=data.user.username)
+        # Only allow test users for extra safety
+        if not getattr(user, User.USERNAME_FIELD).startswith("test_user"):
+            raise HttpError(code="generic", detail="Endpoint not allowed for user.")
+
+        if hasattr(user, "userinfo"):
+            user.userinfo.delete()
+
+        signup_save(data, request)
+        # Delete all of the journal data for this user for a clear test env
+        user.collection_set.all().delete()
+        user.collectionmember_set.all().delete()
+        user.incoming_invitations.all().delete()
+
+        # FIXME: also delete chunk files!!!

server/etebase_fastapi/routers/websocket.py

@@ -0,0 +1,145 @@
+import asyncio
+import typing as t
+
+import aioredis
+from asgiref.sync import sync_to_async
+from django.db.models import QuerySet
+from fastapi import APIRouter, Depends, WebSocket, WebSocketDisconnect, status
+import nacl.encoding
+import nacl.utils
+
+from django_etebase import models
+from django_etebase.utils import CallbackContext, get_user_queryset
+from myauth.models import UserType, get_typed_user_model
+
+from ..dependencies import get_collection_queryset, get_item_queryset
+from ..exceptions import NotSupported
+from ..msgpack import MsgpackRoute, msgpack_decode, msgpack_encode
+from ..redis import redisw
+from ..utils import BaseModel, permission_responses
+
+
+User = get_typed_user_model()
+websocket_router = APIRouter(route_class=MsgpackRoute, responses=permission_responses)
+CollectionQuerySet = QuerySet[models.Collection]
+
+
+TICKET_VALIDITY_SECONDS = 10
+
+
+class TicketRequest(BaseModel):
+    collection: str
+
+
+class TicketOut(BaseModel):
+    ticket: str
+
+
+class TicketInner(BaseModel):
+    user: int
+    req: TicketRequest
+
+
+async def get_ticket(
+    ticket_request: TicketRequest,
+    user: UserType,
+):
+    """Get an authentication ticket that can be used with the websocket endpoint for authentication"""
+    if not redisw.is_active:
+        raise NotSupported(detail="This end-point requires Redis to be configured")
+
+    uid = nacl.encoding.URLSafeBase64Encoder.encode(nacl.utils.random(32))
+    ticket_model = TicketInner(user=user.id, req=ticket_request)
+    ticket_raw = msgpack_encode(ticket_model.dict())
+    await redisw.redis.set(uid, ticket_raw, expire=TICKET_VALIDITY_SECONDS * 1000)
+    return TicketOut(ticket=uid)
+
+
+async def load_websocket_ticket(websocket: WebSocket, ticket: str) -> t.Optional[TicketInner]:
+    content = await redisw.redis.get(ticket)
+    if content is None:
+        await websocket.close(code=status.WS_1008_POLICY_VIOLATION)
+        return None
+    await redisw.redis.delete(ticket)
+    return TicketInner(**msgpack_decode(content))
+
+
+def get_websocket_user(websocket: WebSocket, ticket_model: t.Optional[TicketInner] = Depends(load_websocket_ticket)):
+    if ticket_model is None:
+        return None
+    user_queryset = get_user_queryset(User.objects.all(), CallbackContext(websocket.path_params))
+    return user_queryset.get(id=ticket_model.user)
+
+
+@websocket_router.websocket("/{ticket}/")
+async def websocket_endpoint(
+    websocket: WebSocket,
+    stoken: t.Optional[str] = None,
+    user: t.Optional[UserType] = Depends(get_websocket_user),
+    ticket_model: TicketInner = Depends(load_websocket_ticket),
+):
+    if user is None:
+        return
+    await websocket.accept()
+    await redis_connector(websocket, ticket_model, user, stoken)
+
+
+async def send_item_updates(
+    websocket: WebSocket,
+    collection: models.Collection,
+    user: UserType,
+    stoken: t.Optional[str],
+):
+    from .collection import item_list_common
+
+    done = False
+    while not done:
+        queryset = await sync_to_async(get_item_queryset)(collection)
+        response = await sync_to_async(item_list_common)(queryset, user, stoken, limit=50, prefetch="auto")
+        done = response.done
+        if len(response.data) > 0:
+            await websocket.send_bytes(msgpack_encode(response.dict()))
+
+
+async def redis_connector(websocket: WebSocket, ticket_model: TicketInner, user: UserType, stoken: t.Optional[str]):
+    async def producer_handler(r: aioredis.Redis, ws: WebSocket):
+        channel_name = f"col.{ticket_model.req.collection}"
+        (channel,) = await r.psubscribe(channel_name)
+        assert isinstance(channel, aioredis.Channel)
+
+        # Send missing items if we are not up to date
+        queryset: QuerySet[models.Collection] = get_collection_queryset(user)
+        collection: t.Optional[models.Collection] = await sync_to_async(
+            queryset.filter(uid=ticket_model.req.collection).first
+        )()
+        if collection is None:
+            await websocket.close(code=status.WS_1008_POLICY_VIOLATION)
+            return
+        await send_item_updates(websocket, collection, user, stoken)
+
+        try:
+            while True:
+                # We wait on the websocket so we fail if web sockets fail or get data
+                receive = asyncio.create_task(websocket.receive())
+                done, pending = await asyncio.wait(
+                    {receive, channel.wait_message()}, return_when=asyncio.FIRST_COMPLETED
+                )
+                for task in pending:
+                    task.cancel()
+                if receive in done:
+                    # Web socket should never receieve any data
+                    await websocket.close(code=status.WS_1008_POLICY_VIOLATION)
+                    return
+
+                message_raw = t.cast(t.Optional[t.Tuple[str, bytes]], await channel.get())
+                if message_raw:
+                    _, message = message_raw
+                    await ws.send_bytes(message)
+
+        except aioredis.errors.ConnectionClosedError:
+            await websocket.close(code=status.WS_1012_SERVICE_RESTART)
+        except WebSocketDisconnect:
+            pass
+
+    redis = redisw.redis
+    await producer_handler(redis, websocket)

server/etebase_fastapi/sendfile/LICENSE

@@ -0,0 +1,28 @@
+Copyright (c) 2011, Sensible Development.
+Copyright (c) 2019, Matt Molyneaux
+All rights reserved.
+ 
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+ 
+    1. Redistributions of source code must retain the above copyright notice, 
+       this list of conditions and the following disclaimer.
+    
+    2. Redistributions in binary form must reproduce the above copyright 
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+ 
+    3. Neither the name of Django Send File nor the names of its 
+       contributors may be used to endorse or promote products derived from 
+       this software without specific prior written permission.
+ 
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

server/etebase_fastapi/sendfile/README.md

@@ -0,0 +1,3 @@
+Heavily inspired + code borrowed from: https://github.com/moggers87/django-sendfile2/
+
+We just simplified and inlined it because we don't want another external dependency for distribution packagers to package, as well as need a much simpler version.

server/etebase_fastapi/sendfile/__init__.py

@@ -0,0 +1 @@
+from .utils import sendfile  # noqa

server/etebase_fastapi/sendfile/backends/mod_wsgi.py

@@ -0,0 +1,9 @@
+from __future__ import absolute_import
+
+from fastapi import Response
+
+from ..utils import _convert_file_to_url
+
+
+def sendfile(filename, **kwargs):
+    return Response(headers={"Location": _convert_file_to_url(filename)})

server/etebase_fastapi/sendfile/backends/nginx.py

@@ -0,0 +1,9 @@
+from __future__ import absolute_import
+
+from fastapi import Response
+
+from ..utils import _convert_file_to_url
+
+
+def sendfile(filename, **kwargs):
+    return Response(headers={"X-Accel-Redirect": _convert_file_to_url(filename)})

server/etebase_fastapi/sendfile/backends/simple.py

@@ -0,0 +1,12 @@
+from fastapi.responses import FileResponse
+
+
+def sendfile(filename, mimetype, **kwargs):
+    """Use the SENDFILE_ROOT value composed with the path arrived as argument
+    to build an absolute path with which resolve and return the file contents.
+
+    If the path points to a file out of the root directory (should cover both
+    situations with '..' and symlinks) then a 404 is raised.
+    """
+
+    return FileResponse(filename, media_type=mimetype)

server/etebase_fastapi/sendfile/backends/xsendfile.py

@@ -0,0 +1,6 @@
+from fastapi import Response
+
+
+def sendfile(filename, **kwargs):
+    filename = str(filename)
+    return Response(headers={"X-Sendfile": filename})

server/etebase_fastapi/sendfile/utils.py

@@ -0,0 +1,88 @@
+from functools import lru_cache
+from importlib import import_module
+from pathlib import Path, PurePath
+from urllib.parse import quote
+import logging
+
+from fastapi import status
+from ..exceptions import HttpError
+
+from django.conf import settings
+from django.core.exceptions import ImproperlyConfigured
+
+logger = logging.getLogger(__name__)
+
+
+@lru_cache(maxsize=None)
+def _get_sendfile():
+    backend = getattr(settings, "SENDFILE_BACKEND", None)
+    if not backend:
+        raise ImproperlyConfigured("You must specify a value for SENDFILE_BACKEND")
+    module = import_module(backend)
+    return module.sendfile
+
+
+def _convert_file_to_url(path):
+    try:
+        url_root = PurePath(getattr(settings, "SENDFILE_URL", None))
+    except TypeError:
+        return path
+
+    path_root = PurePath(settings.SENDFILE_ROOT)
+    path_obj = PurePath(path)
+
+    relpath = path_obj.relative_to(path_root)
+    # Python 3.5: Path.resolve() has no `strict` kwarg, so use pathmod from an
+    # already instantiated Path object
+    url = relpath._flavour.pathmod.normpath(str(url_root / relpath))
+
+    return quote(str(url))
+
+
+def _sanitize_path(filepath):
+    try:
+        path_root = Path(getattr(settings, "SENDFILE_ROOT", None))
+    except TypeError:
+        raise ImproperlyConfigured("You must specify a value for SENDFILE_ROOT")
+
+    filepath_obj = Path(filepath)
+
+    # get absolute path
+    # Python 3.5: Path.resolve() has no `strict` kwarg, so use pathmod from an
+    # already instantiated Path object
+    filepath_abs = Path(filepath_obj._flavour.pathmod.normpath(str(path_root / filepath_obj)))
+
+    # if filepath_abs is not relative to path_root, relative_to throws an error
+    try:
+        filepath_abs.relative_to(path_root)
+    except ValueError:
+        raise HttpError(
+            "generic", "{} wrt {} is impossible".format(filepath_abs, path_root), status_code=status.HTTP_404_NOT_FOUND
+        )
+
+    return filepath_abs
+
+
+def sendfile(filename, mimetype="application/octet-stream", encoding=None):
+    """
+    Create a response to send file using backend configured in ``SENDFILE_BACKEND``
+
+    ``filename`` is the absolute path to the file to send.
+    """
+    filepath_obj = _sanitize_path(filename)
+    logger.debug(
+        "filename '%s' requested \"\
+        \"-> filepath '%s' obtained",
+        filename,
+        filepath_obj,
+    )
+    _sendfile = _get_sendfile()
+
+    if not filepath_obj.exists():
+        raise HttpError("does_not_exist", '"%s" does not exist' % filepath_obj, status_code=status.HTTP_404_NOT_FOUND)
+
+    response = _sendfile(filepath_obj, mimetype=mimetype)
+
+    response.headers["Content-Type"] = mimetype
+
+    return response

server/etebase_fastapi/stoken_handler.py

@@ -0,0 +1,62 @@
+import typing as t
+
+from django.db.models import QuerySet
+from fastapi import status
+
+from django_etebase.models import Stoken
+
+from .exceptions import HttpError
+
+# TODO missing stoken_annotation type
+StokenAnnotation = t.Any
+
+
+def get_stoken_obj(stoken: t.Optional[str]) -> t.Optional[Stoken]:
+    if stoken:
+        try:
+            return Stoken.objects.get(uid=stoken)
+        except Stoken.DoesNotExist:
+            raise HttpError("bad_stoken", "Invalid stoken.", status_code=status.HTTP_400_BAD_REQUEST)
+
+    return None
+
+
+def filter_by_stoken(
+    stoken: t.Optional[str], queryset: QuerySet, stoken_annotation: StokenAnnotation
+) -> t.Tuple[QuerySet, t.Optional[Stoken]]:
+    stoken_rev = get_stoken_obj(stoken)
+
+    queryset = queryset.annotate(max_stoken=stoken_annotation).order_by("max_stoken")
+
+    if stoken_rev is not None:
+        queryset = queryset.filter(max_stoken__gt=stoken_rev.id)
+
+    return queryset, stoken_rev
+
+
+def get_queryset_stoken(queryset: t.Iterable[t.Any]) -> t.Optional[Stoken]:
+    maxid = -1
+    for row in queryset:
+        rowmaxid = getattr(row, "max_stoken") or -1
+        maxid = max(maxid, rowmaxid)
+    new_stoken = Stoken.objects.get(id=maxid) if (maxid >= 0) else None
+
+    return new_stoken or None
+
+
+def filter_by_stoken_and_limit(
+    stoken: t.Optional[str], limit: int, queryset: QuerySet, stoken_annotation: StokenAnnotation
+) -> t.Tuple[list, t.Optional[Stoken], bool]:
+
+    queryset, stoken_rev = filter_by_stoken(stoken=stoken, queryset=queryset, stoken_annotation=stoken_annotation)
+
+    result = list(queryset[: limit + 1])
+    if len(result) < limit + 1:
+        done = True
+    else:
+        done = False
+        result = result[:-1]
+
+    new_stoken_obj = get_queryset_stoken(result) or stoken_rev
+
+    return result, new_stoken_obj, done

server/etebase_fastapi/utils.py

@@ -0,0 +1,85 @@
+import dataclasses
+import typing as t
+from typing_extensions import Literal
+import msgpack
+import base64
+
+from fastapi import status, Query, Depends
+from pydantic import BaseModel as PyBaseModel
+
+from django.db.models import Model, QuerySet
+from django.core.exceptions import ObjectDoesNotExist
+
+from django_etebase import app_settings
+from django_etebase.models import AccessLevels
+from myauth.models import UserType, get_typed_user_model
+
+from .exceptions import HttpError, HttpErrorOut
+
+User = get_typed_user_model()
+
+Prefetch = Literal["auto", "medium"]
+PrefetchQuery = Query(default="auto")
+
+
+T = t.TypeVar("T", bound=Model, covariant=True)
+
+
+class BaseModel(PyBaseModel):
+    class Config:
+        json_encoders = {
+            bytes: lambda x: x,
+        }
+
+
+@dataclasses.dataclass
+class Context:
+    user: t.Optional[UserType]
+    prefetch: t.Optional[Prefetch]
+
+
+def get_object_or_404(queryset: QuerySet[T], **kwargs) -> T:
+    try:
+        return queryset.get(**kwargs)
+    except ObjectDoesNotExist as e:
+        raise HttpError("does_not_exist", str(e), status_code=status.HTTP_404_NOT_FOUND)
+
+
+def is_collection_admin(collection, user):
+    member = collection.members.filter(user=user).first()
+    return (member is not None) and (member.accessLevel == AccessLevels.ADMIN)
+
+
+def msgpack_encode(content) -> bytes:
+    ret = msgpack.packb(content, use_bin_type=True)
+    assert ret is not None
+    return ret
+
+
+def msgpack_decode(content: bytes):
+    return msgpack.unpackb(content, raw=False)
+
+
+def b64encode(value: bytes):
+    return base64.urlsafe_b64encode(value).decode("ascii").strip("=")
+
+
+def b64decode(data: str):
+    data += "=" * ((4 - len(data) % 4) % 4)
+    return base64.urlsafe_b64decode(data)
+
+
+def get_user_username_email_kwargs(username: str):
+    field_name = User.EMAIL_FIELD if "@" in username else User.USERNAME_FIELD
+    return {field_name + "__iexact": username.lower()}
+
+
+PERMISSIONS_READ = [Depends(x) for x in app_settings.API_PERMISSIONS_READ]
+PERMISSIONS_READWRITE = PERMISSIONS_READ + [Depends(x) for x in app_settings.API_PERMISSIONS_WRITE]
+
+
+response_model_dict = {"model": HttpErrorOut}
+permission_responses: t.Dict[t.Union[int, str], t.Dict[str, t.Any]] = {
+    401: response_model_dict,
+    403: response_model_dict,
+}

server/etebase_server/asgi.py

@@ -0,0 +1,19 @@
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "etebase_server.settings")
+django_application = get_asgi_application()
+
+
+def create_application():
+    from etebase_fastapi.main import create_application
+
+    app = create_application()
+
+    app.mount("/", django_application)
+
+    return app
+
+
+application = create_application()

server/etebase_server/settings.py

@@ -0,0 +1,180 @@
+"""
+Django settings for etebase_server project.
+
+Generated by 'django-admin startproject' using Django 3.0.3.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.0/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/3.0/ref/settings/
+"""
+
+import os
+import configparser
+from .utils import get_secret_from_file
+
+# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+AUTH_USER_MODEL = "myauth.User"
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/3.0/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+# See secret.py for how this is generated; uses a file 'secret.txt' in the root
+# directory
+SECRET_FILE = os.path.join(BASE_DIR, "secret.txt")
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = []
+
+# Database
+# https://docs.djangoproject.com/en/2.0/ref/settings/#databases
+
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": os.environ.get("ETEBASE_DB_PATH", os.path.join(BASE_DIR, "db.sqlite3")),
+    }
+}
+
+DEFAULT_AUTO_FIELD = 'django.db.models.AutoField'
+
+# Application definition
+
+INSTALLED_APPS = [
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "myauth.apps.MyauthConfig",
+    "django_etebase.apps.DjangoEtebaseConfig",
+    "django_etebase.token_auth.apps.TokenAuthConfig",
+]
+
+MIDDLEWARE = [
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
+]
+
+ROOT_URLCONF = "etebase_server.urls"
+
+TEMPLATES = [
+    {
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [os.path.join(BASE_DIR, "templates")],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = "etebase_server.wsgi.application"
+
+
+# Password validation
+# https://docs.djangoproject.com/en/3.0/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/3.0/topics/i18n/
+
+LANGUAGE_CODE = "en-us"
+
+TIME_ZONE = "UTC"
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/3.0/howto/static-files/
+
+STATIC_URL = "/static/"
+STATIC_ROOT = os.environ.get("DJANGO_STATIC_ROOT", os.path.join(BASE_DIR, "static"))
+
+MEDIA_ROOT = os.environ.get("DJANGO_MEDIA_ROOT", os.path.join(BASE_DIR, "media"))
+MEDIA_URL = "/user-media/"
+
+
+# Define where to find configuration files
+config_locations = [
+    os.environ.get("ETEBASE_EASY_CONFIG_PATH", ""),
+    "etebase-server.ini",
+    "/etc/etebase-server/etebase-server.ini",
+]
+
+# Use config file if present
+if any(os.path.isfile(x) for x in config_locations):
+    config = configparser.ConfigParser()
+    config.read(config_locations)
+
+    section = config["global"]
+
+    SECRET_FILE = section.get("secret_file", SECRET_FILE)
+    STATIC_ROOT = section.get("static_root", STATIC_ROOT)
+    STATIC_URL = section.get("static_url", STATIC_URL)
+    MEDIA_ROOT = section.get("media_root", MEDIA_ROOT)
+    MEDIA_URL = section.get("media_url", MEDIA_URL)
+    LANGUAGE_CODE = section.get("language_code", LANGUAGE_CODE)
+    TIME_ZONE = section.get("time_zone", TIME_ZONE)
+    DEBUG = section.getboolean("debug", DEBUG)
+
+    if "redis_uri" in section:
+        ETEBASE_REDIS_URI = section.get("redis_uri")
+
+    if "allowed_hosts" in config:
+        ALLOWED_HOSTS = [y for x, y in config.items("allowed_hosts")]
+
+    if "database" in config:
+        DATABASES = {"default": {x.upper(): y for x, y in config.items("database")}}
+
+ETEBASE_CREATE_USER_FUNC = "django_etebase.utils.create_user_blocked"
+
+# Efficient file streaming (for large files)
+SENDFILE_BACKEND = "etebase_fastapi.sendfile.backends.simple"
+SENDFILE_ROOT = MEDIA_ROOT
+
+# Make an `etebase_server_settings` module available to override settings.
+try:
+    from etebase_server_settings import *
+except ImportError:
+    pass
+
+if "SECRET_KEY" not in locals():
+    SECRET_KEY = get_secret_from_file(SECRET_FILE)

server/etebase_server/urls.py

@@ -0,0 +1,25 @@
+import os
+
+from django.conf import settings
+from django.conf.urls import url
+from django.contrib import admin
+from django.urls import path, re_path
+from django.views.generic import TemplateView
+from django.views.static import serve
+from django.contrib.staticfiles import finders
+
+urlpatterns = [
+    url(r"^admin/", admin.site.urls),
+    path("", TemplateView.as_view(template_name="success.html")),
+]
+
+if settings.DEBUG:
+
+    def serve_static(request, path):
+        filename = finders.find(path)
+        dirname = os.path.dirname(filename)
+        basename = os.path.basename(filename)
+
+        return serve(request, basename, dirname)
+
+    urlpatterns += [re_path(r"^static/(?P<path>.*)$", serve_static)]

server/etebase_server/utils.py

@@ -0,0 +1,26 @@
+# Copyright © 2017 Tom Hacohen
+#
+# 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 the Free Software Foundation, version 3.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+from django.core.management import utils
+
+
+def get_secret_from_file(path):
+    try:
+        with open(path, "r") as f:
+            return f.read().strip()
+    except EnvironmentError:
+        with open(path, "w") as f:
+            secret_key = utils.get_random_secret_key()
+            f.write(secret_key)
+            return secret_key

server/example-configs/nginx-uwsgi/README.md

@@ -0,0 +1,22 @@
+# Running `etebase` under `nginx` and `uwsgi`
+
+This configuration assumes that etebase server has been installed in the home folder of a non privileged user
+called `EtebaseUser` following the instructions in <https://github.com/etesync/server>. Also that static
+files have been collected at `/srv/http/etebase_server` by running the following commands:
+
+```shell
+sudo mkdir -p /srv/http/etebase_server/static
+sudo chown -R EtebaseUser /srv/http/etebase_server
+sudo su EtebaseUser
+cd /path/to/etebase
+ln -s /srv/http/etebase_server/static static
+./manage.py collectstatic
+```
+
+It is also assumed that `nginx` and `uwsgi` have been installed system wide by `root`, and that `nginx` is running as user/group `www-data`.
+
+In this setup, `uwsgi` running as a `systemd` service as `root` creates a unix socket with read-write access
+to both `EtebaseUser` and `nginx`. It then drops its `root` privilege and runs `etebase` as `EtebaseUser`.
+
+`nginx` listens on the `https` port (or a non standard port `https` port if desired), delivers static pages directly
+and for everything else, communicates with `etebase` over the unix socket.

server/example-configs/nginx-uwsgi/etebase.ini

@@ -0,0 +1,15 @@
+# uwsgi configuration file
+# typical location of this file would be /etc/uwsgi/sites/etebase.ini
+
+[uwsgi]
+socket = /path/to/etebase_server.sock
+chown-socket = EtebaseUser:www-data
+chmod-socket = 660
+vacuum = true
+
+
+uid = EtebaseUser
+chdir = /path/to/etebase
+home = %(chdir)/.venv
+module = etebase_server.wsgi
+master = true

server/example-configs/nginx-uwsgi/etesync.ini

@@ -0,0 +1,15 @@
+# uwsgi configuration file
+# typical location of this file would be /etc/uwsgi/sites/etesync.ini
+
+[uwsgi]
+socket = /path/to/etesync_server.sock
+chown-socket = EtesyncUser:www-data
+chmod-socket = 660
+vacuum = true
+
+
+uid = EtesyncUser
+chdir = /path/to/etesync
+home = %(chdir)/.venv
+module = etesync_server.wsgi
+master = true

server/example-configs/nginx-uwsgi/my.server.name.conf

@@ -0,0 +1,36 @@
+# nginx configuration for etebase server running on https://my.server.name 
+# typical location of this file would be /etc/nginx/sites-available/my.server.name.conf
+
+server {
+    server_name my.server.name;
+
+    root /srv/http/etebase_server;
+
+    client_max_body_size 20M;
+
+    location /static {
+        expires 1y;
+        try_files $uri $uri/ =404;
+    }
+
+    location /media {
+        expires 1y;
+        try_files $uri $uri/ =404;
+    }
+
+    location / {
+        uwsgi_pass      unix:/path/to/etebase_server.sock;
+        include         uwsgi_params;
+    }
+
+    # change 443 to say 9443 to run on a non standard port
+    listen 443 ssl;
+    listen [::]:443 ssl;
+    # Enable these two instead of the two above if your nginx supports http2
+    # listen 443 ssl http2;
+    # listen [::]:443 ssl http2;
+
+    ssl_certificate /path/to/certificate-file
+    ssl_certificate_key /path/to/certificate-key-file
+    # other ssl directives as needed
+}

server/example-configs/nginx-uwsgi/uwsgi.service

@@ -0,0 +1,15 @@
+# systemd unit for running uwsgi in emperor mode
+# typical location of this file would be /etc/systemd/system/uwsgi.service
+
+[Unit]
+Description=uWSGI Emperor service
+
+[Service]
+ExecStart=/usr/local/bin/uwsgi --emperor /etc/uwsgi/sites
+Restart=always
+KillSignal=SIGQUIT
+Type=notify
+NotifyAccess=all
+
+[Install]
+WantedBy=multi-user.target

server/icon.svg

@@ -0,0 +1,241 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   height="192"
+   viewBox="0 0 192 192"
+   width="192"
+   version="1.1"
+   id="svg3688"
+   sodipodi:docname="logo.svg"
+   inkscape:version="0.92.2 5c3e80d, 2017-08-06"
+   inkscape:export-filename="/home/tom/projects/securesync/graphics/logo.png"
+   inkscape:export-xdpi="1000"
+   inkscape:export-ydpi="1000"
+   style="fill:#000000">
+  <metadata
+     id="metadata3694">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs3692">
+    <filter
+       style="color-interpolation-filters:sRGB;"
+       inkscape:label="Drop Shadow"
+       id="filter4498">
+      <feFlood
+         flood-opacity="0.498039"
+         flood-color="rgb(0,0,0)"
+         result="flood"
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server/manage.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "etebase_server.settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
+
+
+if __name__ == "__main__":
+    main()

server/myauth/admin.py

@@ -0,0 +1,12 @@
+from django.contrib import admin
+from django.contrib.auth.admin import UserAdmin as DjangoUserAdmin
+from .models import User
+from .forms import AdminUserCreationForm
+
+
+class UserAdmin(DjangoUserAdmin):
+    add_form = AdminUserCreationForm
+    add_fieldsets = ((None, {"classes": ("wide",), "fields": ("username",),}),)
+
+
+admin.site.register(User, UserAdmin)

server/myauth/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class MyauthConfig(AppConfig):
+    name = "myauth"