signalapp/storage-manager
signalapp/storage-manager
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Squashed history

Browse Source
This commit is contained in:
Ravi Khadiwala 2023-11-20 10:46:44 -06:00
commit 7f9392a5a6
19 changed files with 5883 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
.github/workflows/ci.yml vendored Normal file
View File

@ -0,0 +1,25 @@
name: CI
on:
push:
branches: [ main ]
pull_request:
branches: [ main ]
jobs:
build:
runs-on: ubuntu-latest
defaults:
run:
working-directory: ./workers
steps:
- uses: actions/checkout@v3
- name: Use Node.js version
uses: actions/setup-node@v3
with:
node-version: 20.10.0
cache: 'npm'
cache-dependency-path: '**/package-lock.json'
- run: npm ci
- run: npm run build
- run: npm test

619
LICENSE Normal file
View File

@ -0,0 +1,619 @@
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.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
our General Public Licenses are intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
Developers that use our General Public Licenses protect your rights
with two steps: (1) assert copyright on the software, and (2) offer
you this License which gives you legal permission to copy, distribute
and/or modify the software.
A secondary benefit of defending all users' freedom is that
improvements made in alternate versions of the program, if they
receive widespread use, become available for other developers to
incorporate. Many developers of free software are heartened and
encouraged by the resulting cooperation. However, in the case of
software used on network servers, this result may fail to come about.
The GNU General Public License permits making a modified version and
letting the public access it on a server without ever releasing its
source code to the public.
The GNU Affero General Public License is designed specifically to
ensure that, in such cases, the modified source code becomes available
to the community. It requires the operator of a network server to
provide the source code of the modified version running there to the
users of that server. Therefore, public use of a modified version, on
a publicly accessible server, gives the public access to the source
code of the modified version.
An older license, called the Affero General Public License and
published by Affero, was designed to accomplish similar goals. This is
a different license, not a version of the Affero GPL, but Affero has
released a new version of the Affero GPL which permits relicensing under
this license.
The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU Affero General Public License.
"Copyright" also means copyright-like laws that apply to other kinds of
works, such as semiconductor masks.
"The Program" refers to any copyrightable work licensed under this
License. Each licensee is addressed as "you". "Licensees" and
"recipients" may be individuals or organizations.
To "modify" a work means to copy from or adapt all or part of the work
in a fashion requiring copyright permission, other than the making of an
exact copy. The resulting work is called a "modified version" of the
earlier work or a work "based on" the earlier work.
A "covered work" means either the unmodified Program or a work based
on the Program.
To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for
infringement under applicable copyright law, except executing it on a
computer or modifying a private copy. Propagation includes copying,
distribution (with or without modification), making available to the
public, and in some countries other activities as well.
To "convey" a work means any kind of propagation that enables other
parties to make or receive copies. Mere interaction with a user through
a computer network, with no transfer of a copy, is not conveying.
An interactive user interface displays "Appropriate Legal Notices"
to the extent that it includes a convenient and prominently visible
feature that (1) displays an appropriate copyright notice, and (2)
tells the user that there is no warranty for the work (except to the
extent that warranties are provided), that licensees may convey the
work under this License, and how to view a copy of this License. If
the interface presents a list of user commands or options, such as a
menu, a prominent item in the list meets this criterion.
1. Source Code.
The "source code" for a work means the preferred form of the work
for making modifications to it. "Object code" means any non-source
form of a work.
A "Standard Interface" means an interface that either is an official
standard defined by a recognized standards body, or, in the case of
interfaces specified for a particular programming language, one that
is widely used among developers working in that language.
The "System Libraries" of an executable work include anything, other
than the work as a whole, that (a) is included in the normal form of
packaging a Major Component, but which is not part of that Major
Component, and (b) serves only to enable use of the work with that
Major Component, or to implement a Standard Interface for which an
implementation is available to the public in source code form. A
"Major Component", in this context, means a major essential component
(kernel, window system, and so on) of the specific operating system
(if any) on which the executable work runs, or a compiler used to
produce the work, or an object code interpreter used to run it.
The "Corresponding Source" for a work in object code form means all
the source code needed to generate, install, and (for an executable
work) run the object code and to modify the work, including scripts to
control those activities. However, it does not include the work's
System Libraries, or general-purpose tools or generally available free
programs which are used unmodified in performing those activities but
which are not part of the work. For example, Corresponding Source
includes interface definition files associated with source files for
the work, and the source code for shared libraries and dynamically
linked subprograms that the work is specifically designed to require,
such as by intimate data communication or control flow between those
subprograms and other parts of the work.
The Corresponding Source need not include anything that users
can regenerate automatically from other parts of the Corresponding
Source.
The Corresponding Source for a work in source code form is that
same work.
2. Basic Permissions.
All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
conditions are met. This License explicitly affirms your unlimited
permission to run the unmodified Program. The output from running a
covered work is covered by this License only if the output, given its
content, constitutes a covered work. This License acknowledges your
rights of fair use or other equivalent, as provided by copyright law.
You may make, run and propagate covered works that you do not
convey, without conditions so long as your license otherwise remains
in force. You may convey covered works to others for the sole purpose
of having them make modifications exclusively for you, or provide you
with facilities for running those works, provided that you comply with
the terms of this License in conveying all material for which you do
not control copyright. Those thus making or running the covered works
for you must do so exclusively on your behalf, under your direction
and control, on terms that prohibit them from making any copies of
your copyrighted material outside their relationship with you.
Conveying under any other circumstances is permitted solely under
the conditions stated below. Sublicensing is not allowed; section 10
makes it unnecessary.
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
No covered work shall be deemed part of an effective technological
measure under any applicable law fulfilling obligations under article
11 of the WIPO copyright treaty adopted on 20 December 1996, or
similar laws prohibiting or restricting circumvention of such
measures.
When you convey a covered work, you waive any legal power to forbid
circumvention of technological measures to the extent such circumvention
is effected by exercising rights under this License with respect to
the covered work, and you disclaim any intention to limit operation or
modification of the work as a means of enforcing, against the work's
users, your or third parties' legal rights to forbid circumvention of
technological measures.
4. Conveying Verbatim Copies.
You may convey verbatim copies of the Program's source code as you
receive it, in any medium, provided that you conspicuously and
appropriately publish on each copy an appropriate copyright notice;
keep intact all notices stating that this License and any
non-permissive terms added in accord with section 7 apply to the code;
keep intact all notices of the absence of any warranty; and give all
recipients a copy of this License along with the Program.
You may charge any price or no price for each copy that you convey,
and you may offer support or warranty protection for a fee.
5. Conveying Modified Source Versions.
You may convey a work based on the Program, or the modifications to
produce it from the Program, in the form of source code under the
terms of section 4, provided that you also meet all of these conditions:
a) The work must carry prominent notices stating that you modified
it, and giving a relevant date.
b) The work must carry prominent notices stating that it is
released under this License and any conditions added under section
7. This requirement modifies the requirement in section 4 to
"keep intact all notices".
c) You must license the entire work, as a whole, under this
License to anyone who comes into possession of a copy. This
License will therefore apply, along with any applicable section 7
additional terms, to the whole of the work, and all its parts,
regardless of how they are packaged. This License gives no
permission to license the work in any other way, but it does not
invalidate such permission if you have separately received it.
d) If the work has interactive user interfaces, each must display
Appropriate Legal Notices; however, if the Program has interactive
interfaces that do not display Appropriate Legal Notices, your
work need not make them do so.
A compilation of a covered work with other separate and independent
works, which are not by their nature extensions of the covered work,
and which are not combined with it such as to form a larger program,
in or on a volume of a storage or distribution medium, is called an
"aggregate" if the compilation and its resulting copyright are not
used to limit the access or legal rights of the compilation's users
beyond what the individual works permit. Inclusion of a covered work
in an aggregate does not cause this License to apply to the other
parts of the aggregate.
6. Conveying Non-Source Forms.
You may convey a covered work in object code form under the terms
of sections 4 and 5, provided that you also convey the
machine-readable Corresponding Source under the terms of this License,
in one of these ways:
a) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by the
Corresponding Source fixed on a durable physical medium
customarily used for software interchange.
b) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by a
written offer, valid for at least three years and valid for as
long as you offer spare parts or customer support for that product
model, to give anyone who possesses the object code either (1) a
copy of the Corresponding Source for all the software in the
product that is covered by this License, on a durable physical
medium customarily used for software interchange, for a price no
more than your reasonable cost of physically performing this
conveying of source, or (2) access to copy the
Corresponding Source from a network server at no charge.
c) Convey individual copies of the object code with a copy of the
written offer to provide the Corresponding Source. This
alternative is allowed only occasionally and noncommercially, and
only if you received the object code with such an offer, in accord
with subsection 6b.
d) Convey the object code by offering access from a designated
place (gratis or for a charge), and offer equivalent access to the
Corresponding Source in the same way through the same place at no
further charge. You need not require recipients to copy the
Corresponding Source along with the object code. If the place to
copy the object code is a network server, the Corresponding Source
may be on a different server (operated by you or a third party)
that supports equivalent copying facilities, provided you maintain
clear directions next to the object code saying where to find the
Corresponding Source. Regardless of what server hosts the
Corresponding Source, you remain obligated to ensure that it is
available for as long as needed to satisfy these requirements.
e) Convey the object code using peer-to-peer transmission, provided
you inform other peers where the object code and Corresponding
Source of the work are being offered to the general public at no
charge under subsection 6d.
A separable portion of the object code, whose source code is excluded
from the Corresponding Source as a System Library, need not be
included in conveying the object code work.
A "User Product" is either (1) a "consumer product", which means any
tangible personal property which is normally used for personal, family,
or household purposes, or (2) anything designed or sold for incorporation
into a dwelling. In determining whether a product is a consumer product,
doubtful cases shall be resolved in favor of coverage. For a particular
product received by a particular user, "normally used" refers to a
typical or common use of that class of product, regardless of the status
of the particular user or of the way in which the particular user
actually uses, or expects or is expected to use, the product. A product
is a consumer product regardless of whether the product has substantial
commercial, industrial or non-consumer uses, unless such uses represent
the only significant mode of use of the product.
"Installation Information" for a User Product means any methods,
procedures, authorization keys, or other information required to install
and execute modified versions of a covered work in that User Product from
a modified version of its Corresponding Source. The information must
suffice to ensure that the continued functioning of the modified object
code is in no case prevented or interfered with solely because
modification has been made.
If you convey an object code work under this section in, or with, or
specifically for use in, a User Product, and the conveying occurs as
part of a transaction in which the right of possession and use of the
User Product is transferred to the recipient in perpetuity or for a
fixed term (regardless of how the transaction is characterized), the
Corresponding Source conveyed under this section must be accompanied
by the Installation Information. But this requirement does not apply
if neither you nor any third party retains the ability to install
modified object code on the User Product (for example, the work has
been installed in ROM).
The requirement to provide Installation Information does not include a
requirement to continue to provide support service, warranty, or updates
for a work that has been modified or installed by the recipient, or for
the User Product in which it has been modified or installed. Access to a
network may be denied when the modification itself materially and
adversely affects the operation of the network or violates the rules and
protocols for communication across the network.
Corresponding Source conveyed, and Installation Information provided,
in accord with this section must be in a format that is publicly
documented (and with an implementation available to the public in
source code form), and must require no special password or key for
unpacking, reading or copying.
7. Additional Terms.
"Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law. If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it. (Additional permissions may be written to require their own
removal in certain cases when you modify the work.) You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.
Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders of
that material) supplement the terms of this License with terms:
a) Disclaiming warranty or limiting liability differently from the
terms of sections 15 and 16 of this License; or
b) Requiring preservation of specified reasonable legal notices or
author attributions in that material or in the Appropriate Legal
Notices displayed by works containing it; or
c) Prohibiting misrepresentation of the origin of that material, or
requiring that modified versions of such material be marked in
reasonable ways as different from the original version; or
d) Limiting the use for publicity purposes of names of licensors or
authors of the material; or
e) Declining to grant rights under trademark law for use of some
trade names, trademarks, or service marks; or
f) Requiring indemnification of licensors and authors of that
material by anyone who conveys the material (or modified versions of
it) with contractual assumptions of liability to the recipient, for
any liability that these contractual assumptions directly impose on
those licensors and authors.
All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10. If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
restriction, you may remove that term. If a license document contains
a further restriction but permits relicensing or conveying under this
License, you may add to a covered work material governed by the terms
of that license document, provided that the further restriction does
not survive such relicensing or conveying.
If you add terms to a covered work in accord with this section, you
must place, in the relevant source files, a statement of the
additional terms that apply to those files, or a notice indicating
where to find the applicable terms.
Additional terms, permissive or non-permissive, may be stated in the
form of a separately written license, or stated as exceptions;
the above requirements apply either way.
8. Termination.
You may not propagate or modify a covered work except as expressly
provided under this License. Any attempt otherwise to propagate or
modify it is void, and will automatically terminate your rights under
this License (including any patent licenses granted under the third
paragraph of section 11).
However, if you cease all violation of this License, then your
license from a particular copyright holder is reinstated (a)
provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and (b) permanently, if the copyright
holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.
Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License. If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.
9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or
run a copy of the Program. Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance. However,
nothing other than this License grants you permission to propagate or
modify any covered work. These actions infringe copyright if you do
not accept this License. Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.
10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License. You are not responsible
for enforcing compliance by third parties with this License.
An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations. If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives whatever
licenses to the work the party's predecessor in interest had or could
give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if
the predecessor has it or can get it with reasonable efforts.
You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License. For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program or any portion of it.
11. Patents.
A "contributor" is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based. The
work thus licensed is called the contributor's "contributor version".
A contributor's "essential patent claims" are all patent claims
owned or controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner, permitted
by this License, of making, using, or selling its contributor version,
but do not include claims that would be infringed only as a
consequence of further modification of the contributor version. For
purposes of this definition, "control" includes the right to grant
patent sublicenses in a manner consistent with the requirements of
this License.
Each contributor grants you a non-exclusive, worldwide, royalty-free
patent license under the contributor's essential patent claims, to
make, use, sell, offer for sale, import and otherwise run, modify and
propagate the contents of its contributor version.
In the following three paragraphs, a "patent license" is any express
agreement or commitment, however denominated, not to enforce a patent
(such as an express permission to practice a patent or covenant not to
sue for patent infringement). To "grant" such a patent license to a
party means to make such an agreement or commitment not to enforce a
patent against the party.
If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
publicly available network server or other readily accessible means,
then you must either (1) cause the Corresponding Source to be so
available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
license to downstream recipients. "Knowingly relying" means you have
actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.
A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License. You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Remote Network Interaction; Use with the GNU General Public License.
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

10
README.md Normal file
View File

@ -0,0 +1,10 @@
# storage-manager-private
This repository provides services that are used by [Signal-Server](https://github.com/signalapp/Signal-Server) to manage the contents of object stores that back Signal's CDN system. These functions allow the server to delete objects, move objects between different buckets, and list objects.
# License
Copyright 2024 Signal Messenger, LLC
Licensed under the [AGPLv3](LICENSE)

13
workers/.editorconfig Normal file
View File

@ -0,0 +1,13 @@
# http://editorconfig.org
root = true
[*]
indent_style = tab
tab_width = 2
end_of_line = lf
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true
[*.yml]
indent_style = space

34
workers/.eslintrc Normal file
View File

@ -0,0 +1,34 @@
{
"env": {
"browser": true,
"es2021": true
},
"extends": [
"eslint:recommended",
"plugin:@typescript-eslint/recommended"
],
"overrides": [
],
"parser": "@typescript-eslint/parser",
"parserOptions": {
"ecmaVersion": "latest",
"sourceType": "module"
},
"plugins": [
"@typescript-eslint"
],
"rules": {
"semi": [2, "always"],
"quotes": ["error", "single"],
"no-unused-vars": "off",
"prefer-const": ["error", {"destructuring": "all"}],
"@typescript-eslint/no-unused-vars": [
"warn",
{
"argsIgnorePattern": "^_",
"varsIgnorePattern": "^_",
"caughtErrorsIgnorePattern": "^_"
}
]
}
}

176
workers/.gitignore vendored Normal file
View File

@ -0,0 +1,176 @@
# Logs
logs
_.log
npm-debug.log_
yarn-debug.log*
yarn-error.log*
lerna-debug.log*
.pnpm-debug.log*
# Diagnostic reports (https://nodejs.org/api/report.html)
report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
# Runtime data
pids
_.pid
_.seed
\*.pid.lock
# Directory for instrumented libs generated by jscoverage/JSCover
lib-cov
# Coverage directory used by tools like istanbul
coverage
\*.lcov
# nyc test coverage
.nyc_output
# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
.grunt
# Bower dependency directory (https://bower.io/)
bower_components
# node-waf configuration
.lock-wscript
# Compiled binary addons (https://nodejs.org/api/addons.html)
build/Release
# Dependency directories
node_modules/
jspm_packages/
# Snowpack dependency directory (https://snowpack.dev/)
web_modules/
# TypeScript cache
\*.tsbuildinfo
# Optional npm cache directory
.npm
# Optional eslint cache
.eslintcache
# Optional stylelint cache
.stylelintcache
# Microbundle cache
.rpt2_cache/
.rts2_cache_cjs/
.rts2_cache_es/
.rts2_cache_umd/
# Optional REPL history
.node_repl_history
# Output of 'npm pack'
\*.tgz
# Yarn Integrity file
.yarn-integrity
# dotenv environment variable files
.env
.env.development.local
.env.test.local
.env.production.local
.env.local
# parcel-bundler cache (https://parceljs.org/)
.cache
.parcel-cache
# Next.js build output
.next
out
# Nuxt.js build / generate output
.nuxt
dist
# Gatsby files
.cache/
# Comment in the public line in if your project uses Gatsby and not Next.js
# https://nextjs.org/blog/next-9-1#public-directory-support
# public
# vuepress build output
.vuepress/dist
# vuepress v2.x temp and cache directory
.temp
.cache
# Docusaurus cache and generated files
.docusaurus
# Serverless directories
.serverless/
# FuseBox cache
.fusebox/
# DynamoDB Local files
.dynamodb/
# TernJS port file
.tern-port
# Stores VSCode versions used for testing VSCode extensions
.vscode-test
# yarn v2
.yarn/cache
.yarn/unplugged
.yarn/build-state.yml
.yarn/install-state.gz
.pnp.\*
# wrangler project
.dev.vars
.wrangler/
# webstorm
.idea

1
workers/.nvmrc Normal file
View File

@ -0,0 +1 @@
20.10.0

6
workers/.prettierrc Normal file
View File

@ -0,0 +1,6 @@
{
"printWidth": 140,
"singleQuote": true,
"semi": true,
"useTabs": true
}

37
workers/README.md Normal file
View File

@ -0,0 +1,37 @@
# Overview
This directory provides a storage-manager built on [Cloudflare workers](https://developers.cloudflare.com/workers/) that manages objects stored on [Cloudflare R2](https://developers.cloudflare.com/r2/)
# Building
You'll need [Node.js](https://nodejs.org/). If you use [nvm](https://github.com/creationix/nvm) run
```
nvm use
```
To install dependencies,
```
npm install
```
In order to deploy to Cloudflare or use non-local development mode, use the [`wrangler`](https://developers.cloudflare.com/workers/wrangler/install-and-update/) utility. Follow those instructions to authenticate with your Cloudflare account.
# Testing
To run a development server you can interact with over `localhost`:
```
npx wrangler dev
```
To run unit tests,
```
npm test
```
# Deploying
## One time setup
Create R2 buckets and update the bindings in `wrangler.toml`, then:
```
wrangler deploy -e <staging|production>
```

3933
workers/package-lock.json generated Normal file
View File

File diff suppressed because it is too large Load Diff

25
workers/package.json Normal file
View File

@ -0,0 +1,25 @@
{
"name": "storage-manager",
"version": "0.1.0",
"type": "module",
"devDependencies": {
"@cloudflare/workers-types": "^4.20230419.0",
"@typescript-eslint/eslint-plugin": "^6.10.0",
"@typescript-eslint/parser": "^6.10.0",
"eslint": "^8.53.0",
"typescript": "^5.0.4",
"vitest": "^0.34.6",
"wrangler": "^3.0.0"
},
"dependencies": {
"itty-router": "^4.0.23"
},
"private": true,
"scripts": {
"start": "wrangler dev",
"deploy": "wrangler publish",
"build": "wrangler deploy --dry-run --outdir=dist",
"pretest": "wrangler deploy --dry-run --outdir=dist",
"test": "vitest"
}
}

51
workers/src/encrypt.test.ts Normal file
View File

@ -0,0 +1,51 @@
// Copyright 2024 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import { describe, expect, it } from 'vitest';
import { randBytes, readableStreamFrom, readAll, webcryptoAuthenticateAndDecrypt } from './testutil';
import { Encrypter, streamEncrypt } from './encrypt';
describe('streamEncrypt', () => {
const keyBytes: Uint8Array = randBytes(32);
const hmacKey = randBytes(32);
const iv = randBytes(16);
it.each([1, 3, 113])('handles chunks of size %s', async (chunkSize) => {
const plaintext = randBytes(1763);
const encrypter = await Encrypter.create(iv, hmacKey, keyBytes);
const { readable: source, writable: inp } = new TransformStream();
const { readable: out, writable: dst } = new TransformStream();
const [writePromise, readPromise] = [streamEncrypt(encrypter, source, dst, 128), readAll(out)];
const writer = inp.getWriter();
for (let i = 0; i < plaintext.length; i += chunkSize) {
await writer.write(plaintext.subarray(i, i + chunkSize));
}
await writer.close();
await writePromise;
const encrypted = await readPromise;
const decrypted = await webcryptoAuthenticateAndDecrypt(iv, keyBytes, hmacKey, encrypted);
expect(encrypted.length).toBe(encrypter.encryptedLength(plaintext.length));
expect(decrypted).toEqual(plaintext);
});
it.each([
0, 16, 17, 32, 1023, 1024, 1025, 1024 * 3 + 7
])('encrypts a single chunk of size %s', async (plaintextLength: number) => {
const plaintext = randBytes(plaintextLength);
const encrypter = await Encrypter.create(iv, hmacKey, keyBytes);
const source = readableStreamFrom(plaintext);
const { readable: actual, writable: dst } = new TransformStream();
const encrypt = streamEncrypt(encrypter, source, dst, 1024);
const ciphertext = await readAll(actual);
const decrypted = await webcryptoAuthenticateAndDecrypt(iv, keyBytes, hmacKey, ciphertext);
await encrypt;
expect(decrypted).toEqual(plaintext);
expect(ciphertext.length).toBe(encrypter.encryptedLength(plaintextLength));
});
});

159
workers/src/encrypt.ts Normal file
View File

@ -0,0 +1,159 @@
// Copyright 2024 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import crypto from 'node:crypto';
// @ts-expect-error crypto is available both in node and workers
const subtle = globalThis.crypto.subtle;
// Maximum plaintext length where the output length (including a 16-byte IV, 32-byte HMAC, and up to 16 extra padding
// bytes) will fit in a Number.MAX_SAFE_INTEGER
const MAX_PLAINTEXT_LENGTH = Number.MAX_SAFE_INTEGER - 32 - 16 - 16;
/**
* Writes IV || AES-CBC-256(plaintext) || HMAC-SHA-256(IV || ciphertext)
*
* The underlying webcrypto APIs do not provide streaming AES. This class builds streaming AES-CBC over one-shot, with
* the caveat that all but the last block must be provided as a multiple of the block size (16 bytes).
*/
export class Encrypter {
hmac: crypto.Hmac;
iv: Uint8Array;
aesKey: CryptoKey;
constructor(iv: Uint8Array, hmac: crypto.Hmac, aesKey: CryptoKey) {
if (iv.length !== 16) {
throw new Error('invalid iv length ' + iv.length);
}
this.hmac = hmac;
this.aesKey = aesKey;
this.iv = new Uint8Array(16);
this.iv.set(iv);
}
static async create(iv: Uint8Array, hmacKey: Uint8Array, aesKey: Uint8Array): Promise<Encrypter> {
return new Encrypter(
iv,
crypto.createHmac('sha256', hmacKey),
await subtle.importKey('raw', aesKey, 'AES-CBC', false, ['encrypt']));
}
encryptedLength(plaintextLength: number): number {
if (plaintextLength > MAX_PLAINTEXT_LENGTH) {
throw new Error('plaintext length too large' + plaintextLength);
}
// AES-256 has 16-byte block size, and always adds a block if the plaintext is a multiple of the block size
const numBlocks = Math.ceil((plaintextLength + 1) / 16);
return this.iv.length +
(numBlocks * 16) + // AES-256 encrypted data
32; // hmac-sha256(IV || encrypted)
}
/**
* Initialize the encrypter
*
* Writes the iv to dst
*
* @param dst The output stream for the encrypter
*/
async init(dst: WritableStreamDefaultWriter<Uint8Array>) {
await dst.write(this.iv);
this.hmac.update(this.iv);
}
/**
* Encrypt and write one or more 16-byte blocks of plaintext
*
* @param dst The output stream for the encrypter where the encrypted plaintext will be written
* @param plaintext The plaintext to encrypt
*/
async encrypt(dst: WritableStreamDefaultWriter<Uint8Array>, plaintext: Uint8Array) {
if (plaintext.length % 16 !== 0) {
throw new Error('All but final block must be multiple of block size (16)');
}
let encrypted = new Uint8Array(await subtle.encrypt({ name: 'AES-CBC', iv: this.iv }, this.aesKey, plaintext));
if (encrypted.length !== plaintext.length + 16) {
// sanity check: we should always end up with an extra padding block
throw new Error(`Unexpected AES output length ${encrypted.length} instead of ${plaintext.length + 16}`);
}
// Since plaintext is a multiple of block size, the PKCS#7 padding added to the plaintext will always add a 16-byte
// block. We can trim this off since we don't want any padding until the final block.
encrypted = encrypted.subarray(0, encrypted.length - 16);
// In CBC mode, the iv for the next block is the previous block
this.iv.set(encrypted.subarray(encrypted.length - 16));
await dst.write(encrypted);
this.hmac.update(encrypted);
}
/**
* Finish writing
*
* Encrypts and writes the remaining plaintext if provided, and writes the HMAC of the IV and encrypted bytes
*
* @param dst The output stream for the encrypter
* @param plaintext If present, plaintext to encrypt and write to dst
*/
async finish(dst: WritableStreamDefaultWriter<Uint8Array>, plaintext: Uint8Array | undefined) {
const encrypted = new Uint8Array(await subtle.encrypt({ name: 'AES-CBC', iv: this.iv }, this.aesKey, plaintext));
await dst.write(encrypted);
this.hmac.update(encrypted);
await dst.write(this.hmac.digest());
}
}
/**
* Encrypt the source stream and write it to the destination stream.
*
* Writes:
* IV || AES-CBC-256(source) || HMAC-SHA256(IV || AES-CBC-256(source))
*/
export async function streamEncrypt(
encrypter: Encrypter,
source: ReadableStream<Uint8Array>,
dst: WritableStream<Uint8Array>,
bufferSize?: number) {
bufferSize = bufferSize || 1024 * 1024;
if (bufferSize % 16 !== 0) {
throw new Error('bufferSize must be a multiple of AES-CBC-256 blockSize (16)');
}
// This could be cleaned up a little bit with use of the TransformStream API, however cloudflare workers does not
// currently support Transforms other than IdentityTransforms.
const writer = dst.getWriter();
try {
// write the IV
await encrypter.init(writer);
// we'll buffer up to 1MiB before encrypting and flushing
const plaintext = new Uint8Array(bufferSize);
let offset = 0;
for await (const sourceChunk of source) {
let chunk: Uint8Array | null = sourceChunk;
// Keep writing the chunk until it has all made it into the writer, or it has been buffered into `plaintext`
do {
const amtToCopy = Math.min(plaintext.length - offset, chunk.length);
plaintext.set(chunk.subarray(0, amtToCopy), offset);
offset += amtToCopy;
if (offset === plaintext.length) {
// plaintext buffer is full, encrypt and flush it down
await encrypter.encrypt(writer, plaintext);
offset = 0;
}
// If there's more left in the chunk, trim it and keep going.
chunk = amtToCopy < chunk.length ? chunk.subarray(amtToCopy) : null;
} while (chunk !== null);
}
// write whatever is left and the hmac
await encrypter.finish(writer, plaintext.subarray(0, offset));
} finally {
await writer.close();
}
}

283
workers/src/index.test.ts Normal file
View File

@ -0,0 +1,283 @@
// Copyright 2024 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import { afterAll, afterEach, beforeAll, describe, expect, it } from 'vitest';
import { unstable_dev, UnstableDevWorker } from 'wrangler';
import { randBytes, randomishBytes, webcryptoAuthenticateAndDecrypt } from './testutil';
import { ListResponse } from './index';
let worker: UnstableDevWorker;
let r2Worker: UnstableDevWorker;
beforeAll(async () => {
worker = await unstable_dev('src/index.ts', {
experimental: { disableExperimentalWarning: true }
});
r2Worker = await unstable_dev('src/r2TestWorker.ts', {
experimental: { disableExperimentalWarning: true }
});
});
afterEach(async () => {
await r2Clear('attachments');
await r2Clear('backups');
});
afterAll(async () => {
await worker.stop();
await r2Worker.stop();
});
async function r2Clear(bucketName: string): Promise<void> {
const response = await r2Worker.fetch(`http://${r2Worker.address}:${r2Worker.port}/${bucketName}`, { method: 'DELETE' });
if (response.status !== 200) {
throw new Error(`error ${response.status} : ${response.statusText}`);
}
}
async function r2Put(bucketName: string, key: string, content: string | Uint8Array): Promise<number> {
const url = `http://${r2Worker.address}:${r2Worker.port}/${bucketName}/${key}`;
const response = await r2Worker.fetch(url, {
method: 'PUT',
body: content,
headers: {
'Content-Length': `${content.length}`
}
});
if (response.status !== 200) {
throw new Error(`error ${response.status} : ${response.statusText}`);
}
return response.status;
}
async function r2Get(bucketName: string, key: string): Promise<Uint8Array | null> {
const url = `http://${r2Worker.address}:${r2Worker.port}/${bucketName}/${key}`;
const response = await r2Worker.fetch(url, { method: 'GET' });
if (response.status == 404) {
return null;
}
if (response.status != 200) {
throw new Error(`error ${response.status} : ${response.statusText}`);
}
return new Uint8Array(await response.arrayBuffer());
}
describe('deletes', () => {
it.each([
'attachments',
'backups'
])('delete from %s', async (bucketName: string) => {
await r2Put(bucketName, 'abc', 'test');
expect(await r2Get(bucketName, 'abc')).toStrictEqual(new TextEncoder().encode('test'));
const res = await worker.fetch(`http://localhost/${bucketName}/abc`, { method: 'DELETE' });
expect(res.status).toBe(200);
expect(await res.json()).toEqual({ bytesDeleted: 4 });
expect(await r2Get(bucketName, 'abc')).toBeNull();
});
it('succeeds on missing objects', async () => {
const res = await worker.fetch('http://localhost/attachments/fake', { method: 'DELETE' });
expect(res.status).toBe(200);
expect(await res.json()).toEqual({ bytesDeleted: 0 });
});
it('handles on objects with / in the name', async () => {
await r2Put('attachments', 'abc/def', 'test');
const res = await worker.fetch('http://localhost/attachments/abc/def', { method: 'DELETE' });
expect(res.status).toBe(200);
expect(await res.json()).toEqual({ bytesDeleted: 4 });
expect(await r2Get('attachments', 'abc/def')).toBeNull();
});
});
describe('list', () => {
const prefix = 'myBackupId/media';
async function addObjects(prefix: string, numObjects: number, content: string): Promise<string[]> {
const keys = [...Array(numObjects).keys()].map(i => `${prefix}/${i}`);
for (const key of keys) {
await r2Put('backups', key, content);
}
return keys;
}
it('lists all objects', async () => {
const keys = await addObjects(prefix, 5, 'test');
const response = await worker.fetch(`http://localhost/backups?prefix=${prefix}&limit=5`, { method: 'GET' });
expect(response.status).toBe(200);
const res = await response.json() as ListResponse;
expect(res.cursor).toBeUndefined();
expect(res.objects).toHaveLength(5);
expect(res.objects.map(obj => obj.key)).toEqual(keys);
expect(res.objects.map(obj => obj.size).every(n => n === 4)).toBeTruthy();
});
it('limit larger than numObjects', async () => {
await addObjects(prefix, 5, 'test');
const response = await worker.fetch(`http://localhost/backups/?prefix=${prefix}&limit=10`, { method: 'GET' });
expect(response.status).toBe(200);
const res = await response.json() as ListResponse;
expect(res.cursor).toBeUndefined();
expect(res.objects).toHaveLength(5);
});
it('pages results', async () => {
const keys = await addObjects(prefix, 5, 'test');
let response = await worker.fetch(`http://localhost/backups?prefix=${prefix}&limit=3`, { method: 'GET' });
expect(response.status).toBe(200);
let res = await response.json() as ListResponse;
expect(res.cursor).toBeTruthy();
expect(res.objects).toHaveLength(3);
expect(res.objects.map(obj => obj.key)).toEqual(keys.slice(0, 3));
response = await worker.fetch(`http://localhost/backups/?prefix=${prefix}&limit=3&cursor=${res.cursor}`, { method: 'GET' });
expect(response.status).toBe(200);
res = await response.json() as ListResponse;
expect(res.cursor).toBeFalsy();
expect(res.objects).toHaveLength(2);
expect(res.objects.map(obj => obj.key)).toEqual(keys.slice(3));
});
it('handles url-encoded query parameters', async () => {
await addObjects('myBackupId==/m/edia', 5, 'test');
await addObjects('myBackUpId==/m/edia2', 10, 'test');
const url = `http://${r2Worker.address}:${r2Worker.port}/backups`;
await r2Worker.fetch(url, { method: 'GET' });
const response = await worker.fetch(
`http://localhost/backups/?prefix=${encodeURIComponent('myBackupId==/m/edia')}&limit=10`,
{ method: 'GET' });
expect(response.status).toBe(200);
const res = await response.json() as ListResponse;
expect(res.cursor).toBeUndefined();
expect(res.objects).toHaveLength(5);
});
});
describe('usage', async () => {
it('calculates usage', async () => {
let total = 0;
for (let i = 0; i < 100; i++) {
await r2Put('backups', `prefix1/${i}`, randBytes(i));
await r2Put('backups', `prefix2/${i}`, randBytes(i));
total += i;
}
const response = await worker.fetch('http://localhost/usage?prefix=prefix1', { method: 'GET' });
expect(response.status).toBe(200);
const { bytesUsed, numObjects } = await response.json() as { bytesUsed: number, numObjects: number };
expect(bytesUsed).toBe(total);
expect(numObjects).toBe(100);
});
it('handles 0 bytesUsed', async () => {
const response = await worker.fetch('http://localhost/usage?prefix=prefix1', { method: 'GET' });
expect(response.status).toBe(200);
const { bytesUsed, numObjects } = await response.json() as { bytesUsed: number, numObjects: number };
expect(bytesUsed).toBe(0);
expect(numObjects).toBe(0);
});
const pagingParams = [1, 3, 5, 10, 50, 100, 113]
.flatMap(i => [1, 3, 5, 50, 113].map(j => ({ numObjects: i, limit: j })));
it.each(pagingParams)('handles paging %s', async (params) => {
let total = 0;
for (let i = 0; i < params.numObjects; i++) {
await r2Put('backups', `prefix1/${i}`, randBytes(i));
total += i;
}
const response = await worker.fetch(`http://localhost/usage?prefix=prefix1&limit=${params.limit}`, { method: 'GET' });
expect(response.status).toBe(200);
const { bytesUsed, numObjects } = await response.json() as { bytesUsed: number, numObjects: number };
expect(bytesUsed).toBe(total);
expect(numObjects).toBe(params.numObjects);
});
});
describe('copy', () => {
const key = randBytes(32);
const hmacKey = randBytes(32);
const iv = randBytes(16);
const plaintext = randBytes(1024 * 3 + 7);
function validRequest(source: Uint8Array = plaintext) {
return {
encryptionKey: Buffer.from(key).toString('base64'),
hmacKey: Buffer.from(hmacKey).toString('base64'),
iv: Buffer.from(iv).toString('base64'),
source: 'abc',
expectedSourceLength: source.length,
dst: 'my/abc'
};
}
it.each(Object.keys(validRequest()))('rejects missing %s', async (missingProp: string) => {
const request: Record<string, unknown> = validRequest();
delete request[missingProp];
const body = JSON.stringify(request);
const res = await worker.fetch('http://localhost/copy', {
method: 'PUT',
body: body,
headers: { 'Content-Length': body.length.toString() }
});
expect(res.status, await res.text()).toBe(400);
});
it.each(['encryptionKey', 'hmacKey', 'iv', 'expectedSourceLength'])('rejects bad base64 encoded %s', async (badprop: string) => {
const request: Record<string, unknown> = validRequest();
request[badprop] = 'aa&bb';
const body = JSON.stringify(request);
const res = await worker.fetch('http://localhost/copy', {
method: 'PUT',
body: body,
headers: { 'Content-Length': body.length.toString() }
});
expect(res.status, await res.text()).toBe(400);
});
it('handles missing source object', async () => {
const request: Record<string, unknown> = validRequest();
request['source'] = 'DoesNotExist';
const body = JSON.stringify(request);
const res = await worker.fetch('http://localhost/copy', {
method: 'PUT',
body: body,
headers: { 'Content-Length': body.length.toString() }
});
expect(res.status, await res.text()).toBe(404);
});
it('rejects bad sourceLength', async () => {
await r2Put('attachments', 'abc', plaintext);
const request: Record<string, unknown> = validRequest();
request['expectedSourceLength'] = plaintext.length - 1;
const body = JSON.stringify(request);
const res = await worker.fetch('http://localhost/copy', {
method: 'PUT',
body: body,
headers: { 'Content-Length': body.length.toString() }
});
expect(res.status, await res.text()).toBe(409);
});
it.each([
0, 63, 64, 1024 * 4 - 1, 1024, 1024 * 4 + 1, 1024 * 1024, 1024 * 1024 * 3 + 1
])('copies %s bytes to backup bucket', async (plaintextLength: number) => {
const plaintext = randomishBytes(plaintextLength);
await r2Put('attachments', 'abc', plaintext);
const body = JSON.stringify(validRequest(plaintext));
const res = await worker.fetch('http://localhost/copy', {
method: 'PUT',
body: body,
headers: { 'Content-Length': body.length.toString() }
});
expect(res.status, await res.text()).toBe(204);
const payload = await r2Get('backups', 'my/abc');
const decrypted = await webcryptoAuthenticateAndDecrypt(iv, key, hmacKey, payload!);
expect(decrypted).toEqual(plaintext);
});
});

200
workers/src/index.ts Normal file
View File

@ -0,0 +1,200 @@
// Copyright 2024 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import { error, IRequest, json, Router, StatusError } from 'itty-router';
import { Encrypter, streamEncrypt } from './encrypt';
export interface Env {
ATTACHMENT_BUCKET: R2Bucket;
BACKUP_BUCKET: R2Bucket;
}
const router = Router();
router
.put('/copy', copyHandler)
.get('/usage', usageHandler)
.get('/:bucketId', listHandler)
.delete('/:bucketId/:id+', deletionHandler)
.all('*', () => error(404));
export default {
async fetch(request: Request, env: Env, ctx: ExecutionContext): Promise<Response> {
return await router.handle(request, env, ctx).catch(e => {
console.log('error: ' + e.stack);
return error(e);
}).then(json);
}
};
async function deletionHandler(request: IRequest, env: Env): Promise<Response> {
const bucket = getBucket(env, request.params.bucketId);
if (bucket == null) {
return error(404);
}
const head = await bucket.head(request.params.id);
if (head == null) {
return json({ bytesDeleted: 0 });
}
await bucket.delete(request.params.id);
return json({ bytesDeleted: head.size });
}
export interface ListResponse {
cursor?: string,
objects: {
key: string,
size: number
}[]
}
async function listHandler(request: IRequest, env: Env): Promise<Response> {
const bucket = getBucket(env, request.params.bucketId);
if (bucket == null) {
return error(404);
}
if (Array.isArray(request.query['cursor'])) {
return error(400, 'only one cursor parameter can be provided');
}
if (Array.isArray(request.query['limit'])) {
return error(400, 'only one limit parameter can be provided');
}
if (Array.isArray(request.query['prefix'])) {
return error(400, 'only one prefix parameter can be provided');
}
const limit = request.query['limit'] == null ? undefined : parseInt(request.query['limit']);
if (limit != null && isNaN(limit)) {
throw new StatusError(400, 'limit must be a number');
}
const response = await bucket.list({
prefix: request.query['prefix'],
cursor: request.query['cursor'],
limit
});
const objects = response.objects.map(({ key, size }) => ({
key: key,
size: size
}));
const listResponse: ListResponse = {
cursor: response.truncated ? response.cursor : undefined,
objects
};
return json(listResponse);
}
async function usageHandler(request: IRequest, env: Env): Promise<Response> {
const bucket = env.BACKUP_BUCKET;
const prefix = request.query['prefix'];
if (prefix == null || Array.isArray(prefix) || prefix.length === 0) {
return error(400, 'exactly one prefix parameter must be provided');
}
if (Array.isArray(request.query['limit'])) {
return error(400, 'only one limit parameter can be provided');
}
const limit = request.query['limit'] == null ? undefined : parseInt(request.query['limit']);
if (limit != null && isNaN(limit)) {
throw new StatusError(400, 'limit must be a number');
}
let totalObjects = 0;
let totalBytes = 0;
let cursor: undefined | string = undefined;
do {
const response = await bucket.list({ prefix, limit, cursor });
totalBytes = response.objects.reduce((acc, obj) => acc + obj.size, totalBytes);
totalObjects += response.objects.length;
cursor = response.truncated ? response.cursor : undefined;
} while (cursor != null);
return json({ bytesUsed: totalBytes, numObjects: totalObjects });
}
interface CopyRequest {
encryptionKey: string,
hmacKey: string,
iv: string,
source: string,
expectedSourceLength: number,
dst: string
}
function isCopyRequest(o: unknown): o is CopyRequest {
return o != null
&& typeof o === 'object'
&& 'encryptionKey' in o && typeof (o.encryptionKey) === 'string'
&& 'hmacKey' in o && typeof (o.hmacKey) === 'string'
&& 'iv' in o && typeof (o.iv) === 'string'
&& 'source' in o && typeof (o.source) === 'string'
&& 'expectedSourceLength' in o && typeof (o.expectedSourceLength) === 'number'
&& 'dst' in o && typeof (o.dst) === 'string';
}
async function copyHandler(request: IRequest, env: Env): Promise<Response> {
const copyRequest = await request.json();
if (!isCopyRequest(copyRequest)) {
return error(400, 'invalid copy request');
}
const aesKeyBuf = b64decode(copyRequest.encryptionKey);
if (aesKeyBuf == null) {
return error(400, 'invalid key, must be base64');
}
if (aesKeyBuf.length != 32) {
return error(400, 'invalid key, must be length 32');
}
const hmacKey = b64decode(copyRequest.hmacKey);
if (hmacKey == null) {
return error(400, 'invalid hmac key, must be base64');
}
if (hmacKey.length != 32) {
return error(400, 'invalid hmac key, must be length 32');
}
const iv = b64decode(copyRequest.iv);
if (iv == null) {
return error(400, 'invalid iv, must be base64');
}
if (iv.length != 16) {
return error(400, 'invalid iv, must be length 16');
}
const r2Source = await env.ATTACHMENT_BUCKET.get(copyRequest.source);
if (r2Source === null) {
return error(404, 'source object not found');
}
if (r2Source.size !== copyRequest.expectedSourceLength) {
return error(409, `request expectedSourceLength ${copyRequest.expectedSourceLength} did not match actual sourceLength ${r2Source.size}`);
}
const encrypter = await Encrypter.create(iv, hmacKey, aesKeyBuf);
const { readable, writable } = new FixedLengthStream(encrypter.encryptedLength(r2Source.size));
const putRequest = env.BACKUP_BUCKET.put(copyRequest.dst, readable, {
httpMetadata: r2Source.httpMetadata
});
await streamEncrypt(encrypter, r2Source.body, writable);
await putRequest;
return new Response(null, { status: 204 });
}
function getBucket(env: Env, bucketId: string): R2Bucket | undefined {
switch (bucketId) {
case 'attachments':
return env.ATTACHMENT_BUCKET;
case 'backups':
return env.BACKUP_BUCKET;
default:
return undefined;
}
}
function b64decode(b64: string): Uint8Array | null {
try {
return Uint8Array.from(atob(b64), c => c.charCodeAt(0));
} catch (e) {
return null;
}
}

74
workers/src/r2TestWorker.ts Normal file
View File

@ -0,0 +1,74 @@
// Copyright 2024 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import { error, json, Router } from 'itty-router';
export interface Env {
ATTACHMENT_BUCKET: R2Bucket;
BACKUP_BUCKET: R2Bucket;
}
const router = Router();
router.get('/:bucketId/:id+', async (request, env) => {
const bucket = getBucket(env, request.params.bucketId);
if (bucket == null) {
return error(404);
}
const object = await bucket.get(request.params.id);
if (object == null) {
return error(404);
}
return new Response(object.body, { status: 200 });
});
router.put('/:bucketId/:id+', async (request, env) => {
const bucket = getBucket(env, request.params.bucketId);
if (bucket == null) {
return error(404);
}
if (request.body == null) {
return error(400);
}
await bucket.put(request.params.id, request.body as ReadableStream<never>, { httpMetadata: request.headers });
return new Response(null, { status: 200 });
});
router.delete('/:bucketId', async (request, env) => {
const bucket = getBucket(env, request.params.bucketId);
if (bucket == null) {
return error(404);
}
let cursor: undefined | string = undefined;
do {
const response = await bucket.list({ cursor });
await bucket.delete(response.objects.map(obj => obj.key));
if (response.truncated) {
cursor = response.cursor;
}
} while (cursor != null);
return new Response(null, { status: 200 });
});
router.all('*', () => error(404));
export default {
async fetch(request: Request, env: Env, ctx: ExecutionContext): Promise<Response> {
return await router.handle(request, env, ctx).catch(e => {
console.log('error: ' + e.stack);
return error(e);
}).then(json);
}
};
function getBucket(env: Env, bucketId: string): R2Bucket | undefined {
switch (bucketId) {
case 'attachments':
return env.ATTACHMENT_BUCKET;
case 'backups':
return env.BACKUP_BUCKET;
default:
return undefined;
}
}

86
workers/src/testutil.ts Normal file
View File

@ -0,0 +1,86 @@
// Copyright 2024 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import crypto from 'crypto';
import { expect } from 'vitest';
export function randBytes(n: number): Uint8Array {
const arr = new Uint8Array(n);
crypto.getRandomValues(arr);
return arr;
}
/**
* Generate large random looking data to use when validating encryption algorithms. This can be faster that actual
* random data for large buffers if there isn't enough available entropy on the system.
*/
export function randomishBytes(n: number): Uint8Array {
const curr = new Uint8Array(32);
const arr = new Uint8Array(n);
for (let offset = 0; offset < n; offset += 32) {
const hasher = crypto.createHash('sha256');
hasher.update(curr);
curr.set(hasher.digest());
arr.set(curr);
}
return arr;
}
export function readableStreamFrom(bytes: Uint8Array): ReadableStream<Uint8Array> {
return new ReadableStream<Uint8Array>({
start(controller) {
controller.enqueue(bytes);
controller.close();
}
});
}
export async function readAll(stream: ReadableStream<Uint8Array>): Promise<Uint8Array> {
const chunks: Uint8Array[] = [];
for await (const chunk of stream) {
// save a copy of the chunk
chunks.push(new Uint8Array(chunk));
}
return concat(chunks);
}
export function concat(data: Uint8Array[]): Uint8Array {
const size = data.reduce((len, nxt) => len + nxt.length, 0);
const ret = new Uint8Array(size);
let offset = 0;
for (const arr of data) {
ret.set(arr, offset);
offset += arr.length;
}
return ret;
}
export async function webcryptoHmacVerify(hmac: Uint8Array, key: Uint8Array, ...data: Uint8Array[]): Promise<boolean> {
return await crypto.webcrypto.subtle.verify({
name: 'hmac',
hash: 'SHA-256'
},
await crypto.webcrypto.subtle.importKey('raw', key, {
name: 'hmac',
hash: 'SHA-256'
}, false, ['verify']),
hmac,
concat(data));
}
export async function aesKey(keyBytes: Uint8Array): Promise<crypto.webcrypto.CryptoKey> {
return await crypto.subtle.importKey('raw', keyBytes, 'AES-CBC', false, ['encrypt', 'decrypt']);
}
export async function webcryptoDecrypt(iv: Uint8Array, key: Uint8Array, data: Uint8Array): Promise<Uint8Array> {
return new Uint8Array(await crypto.subtle.decrypt({ name: 'AES-CBC', iv }, await aesKey(key), data));
}
export async function webcryptoAuthenticateAndDecrypt(iv: Uint8Array, key: Uint8Array, hmacKey: Uint8Array, ciphertext: Uint8Array): Promise<Uint8Array> {
expect(ciphertext.subarray(0, 16)).toEqual(iv);
const encrypted = ciphertext!.subarray(16, ciphertext.length - 32);
const hmac = ciphertext.subarray(ciphertext.length - 32, ciphertext.length);
expect(await webcryptoHmacVerify(hmac, hmacKey, ciphertext.subarray(0, ciphertext.length - 32))).toBe(true);
return await webcryptoDecrypt(iv, key, encrypted);
}

120
workers/tsconfig.json Normal file
View File

@ -0,0 +1,120 @@
{
"compilerOptions": {
/* Visit https://aka.ms/tsconfig.json to read more about this file */
/* Projects */
// "incremental": true, /* Enable incremental compilation */
// "composite": true, /* Enable constraints that allow a TypeScript project to be used with project references. */
// "tsBuildInfoFile": "./", /* Specify the folder for .tsbuildinfo incremental compilation files. */
// "disableSourceOfProjectReferenceRedirect": true, /* Disable preferring source files instead of declaration files when referencing composite projects */
// "disableSolutionSearching": true, /* Opt a project out of multi-project reference checking when editing. */
// "disableReferencedProjectLoad": true, /* Reduce the number of projects loaded automatically by TypeScript. */
/* Language and Environment */
"target": "es2021"
/* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */,
"lib": [
"es2021"
]
/* Specify a set of bundled library declaration files that describe the target runtime environment. */,
"jsx": "react"
/* Specify what JSX code is generated. */,
// "experimentalDecorators": true, /* Enable experimental support for TC39 stage 2 draft decorators. */
// "emitDecoratorMetadata": true, /* Emit design-type metadata for decorated declarations in source files. */
// "jsxFactory": "", /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h' */
// "jsxFragmentFactory": "", /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
// "jsxImportSource": "", /* Specify module specifier used to import the JSX factory functions when using `jsx: react-jsx*`.` */
// "reactNamespace": "", /* Specify the object invoked for `createElement`. This only applies when targeting `react` JSX emit. */
// "noLib": true, /* Disable including any library files, including the default lib.d.ts. */
// "useDefineForClassFields": true, /* Emit ECMAScript-standard-compliant class fields. */
/* Modules */
"module": "es2022"
/* Specify what module code is generated. */,
// "rootDir": "./", /* Specify the root folder within your source files. */
"moduleResolution": "node"
/* Specify how TypeScript looks up a file from a given module specifier. */,
// "baseUrl": "./", /* Specify the base directory to resolve non-relative module names. */
// "paths": {}, /* Specify a set of entries that re-map imports to additional lookup locations. */
// "rootDirs": [], /* Allow multiple folders to be treated as one when resolving modules. */
// "typeRoots": [], /* Specify multiple folders that act like `./node_modules/@types`. */
"types": [
"@cloudflare/workers-types",
"vitest-environment-miniflare/globals"
]
/* Specify type package names to be included without being referenced in a source file. */,
// "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */
"resolveJsonModule": true
/* Enable importing .json files */,
// "noResolve": true, /* Disallow `import`s, `require`s or `<reference>`s from expanding the number of files TypeScript should add to a project. */
/* JavaScript Support */
"allowJs": true
/* Allow JavaScript files to be a part of your program. Use the `checkJS` option to get errors from these files. */,
"checkJs": false
/* Enable error reporting in type-checked JavaScript files. */,
// "maxNodeModuleJsDepth": 1, /* Specify the maximum folder depth used for checking JavaScript files from `node_modules`. Only applicable with `allowJs`. */
/* Emit */
// "declaration": true, /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
// "declarationMap": true, /* Create sourcemaps for d.ts files. */
// "emitDeclarationOnly": true, /* Only output d.ts files and not JavaScript files. */
// "sourceMap": true, /* Create source map files for emitted JavaScript files. */
// "outFile": "./", /* Specify a file that bundles all outputs into one JavaScript file. If `declaration` is true, also designates a file that bundles all .d.ts output. */
// "outDir": "./", /* Specify an output folder for all emitted files. */
// "removeComments": true, /* Disable emitting comments. */
"noEmit": true
/* Disable emitting files from a compilation. */,
// "importHelpers": true, /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
// "importsNotUsedAsValues": "remove", /* Specify emit/checking behavior for imports that are only used for types */
// "downlevelIteration": true, /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
// "sourceRoot": "", /* Specify the root path for debuggers to find the reference source code. */
// "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true, /* Include sourcemap files inside the emitted JavaScript. */
// "inlineSources": true, /* Include source code in the sourcemaps inside the emitted JavaScript. */
// "emitBOM": true, /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
// "newLine": "crlf", /* Set the newline character for emitting files. */
// "stripInternal": true, /* Disable emitting declarations that have `@internal` in their JSDoc comments. */
// "noEmitHelpers": true, /* Disable generating custom helper functions like `__extends` in compiled output. */
// "noEmitOnError": true, /* Disable emitting files if any type checking errors are reported. */
// "preserveConstEnums": true, /* Disable erasing `const enum` declarations in generated code. */
// "declarationDir": "./", /* Specify the output directory for generated declaration files. */
// "preserveValueImports": true, /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */
/* Interop Constraints */
"isolatedModules": true
/* Ensure that each file can be safely transpiled without relying on other imports. */,
"allowSyntheticDefaultImports": true
/* Allow 'import x from y' when a module doesn't have a default export. */,
// "esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */,
// "preserveSymlinks": true, /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
"forceConsistentCasingInFileNames": true
/* Ensure that casing is correct in imports. */,
/* Type Checking */
"strict": true
/* Enable all strict type-checking options. */,
// "noImplicitAny": true, /* Enable error reporting for expressions and declarations with an implied `any` type.. */
// "strictNullChecks": true, /* When type checking, take into account `null` and `undefined`. */
// "strictFunctionTypes": true, /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
// "strictBindCallApply": true, /* Check that the arguments for `bind`, `call`, and `apply` methods match the original function. */
// "strictPropertyInitialization": true, /* Check for class properties that are declared but not set in the constructor. */
// "noImplicitThis": true, /* Enable error reporting when `this` is given the type `any`. */
// "useUnknownInCatchVariables": true, /* Type catch clause variables as 'unknown' instead of 'any'. */
// "alwaysStrict": true, /* Ensure 'use strict' is always emitted. */
// "noUnusedLocals": true, /* Enable error reporting when a local variables aren't read. */
// "noUnusedParameters": true, /* Raise an error when a function parameter isn't read */
// "exactOptionalPropertyTypes": true, /* Interpret optional property types as written, rather than adding 'undefined'. */
// "noImplicitReturns": true, /* Enable error reporting for codepaths that do not explicitly return in a function. */
// "noFallthroughCasesInSwitch": true, /* Enable error reporting for fallthrough cases in switch statements. */
// "noUncheckedIndexedAccess": true, /* Include 'undefined' in index signature results */
// "noImplicitOverride": true, /* Ensure overriding members in derived classes are marked with an override modifier. */
// "noPropertyAccessFromIndexSignature": true, /* Enforces using indexed accessors for keys declared using an indexed type */
// "allowUnusedLabels": true, /* Disable error reporting for unused labels. */
// "allowUnreachableCode": true, /* Disable error reporting for unreachable code. */
/* Completeness */
// "skipDefaultLibCheck": true, /* Skip type checking .d.ts files that are included with TypeScript. */
"skipLibCheck": true
/* Skip type checking all .d.ts files. */
}
}

31
workers/wrangler.toml Normal file
View File

@ -0,0 +1,31 @@
# Copyright 2024 Signal Messenger, LLC
# SPDX-License-Identifier: AGPL-3.0-only
name = "storage-manager-dev"
main = "src/index.ts"
logpush = true
compatibility_date = "2023-10-30"
workers_dev = false
# required since we use node crypto's streaming HMAC
compatibility_flags = ["nodejs_compat"]
# Specifies the r2 buckets. r2 bucket names are scoped to your account (not global). The buckets should be publicly inaccessible.
r2_buckets = [
{ binding = "ATTACHMENT_BUCKET", bucket_name = "attachments-staging", preview_bucket_name = "attachments-staging" },
{ binding = "BACKUP_BUCKET", bucket_name = "backups-staging", preview_bucket_name = "backups-staging" }
]
[env.production]
name = "storage-manager"
r2_buckets = [
{ binding = "ATTACHMENT_BUCKET", bucket_name = "attachments", preview_bucket_name = "attachments" },
{ binding = "BACKUP_BUCKET", bucket_name = "backups", preview_bucket_name = "backups" }
]
[env.staging]
name = "storage-manager-staging"
r2_buckets = [
{ binding = "ATTACHMENT_BUCKET", bucket_name = "attachments-staging", preview_bucket_name = "attachments-staging" },
{ binding = "BACKUP_BUCKET", bucket_name = "backups-staging", preview_bucket_name = "backups-staging" }
]