File oauth2-clientd-0.10.0.obscpio of Package oauth2-clientd
07070100000000000081A40000000000000000000000016851E67900000038000000000000000000000000000000000000002100000000oauth2-clientd-0.10.0/.gitignore.mypy_cache
.*.swp
*.egg-info
build
dist
*~
__pycache__
07070100000001000081A40000000000000000000000016851E67900004755000000000000000000000000000000000000002000000000oauth2-clientd-0.10.0/.pylintrc[MASTER]
# A comma-separated list of package or module names from where C extensions may
# be loaded. Extensions are loading into the active Python interpreter and may
# run arbitrary code.
extension-pkg-allow-list=
# A comma-separated list of package or module names from where C extensions may
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# run arbitrary code. (This is an alternative name to extension-pkg-allow-list
# for backward compatibility.)
extension-pkg-whitelist=
# Return non-zero exit code if any of these messages/categories are detected,
# even if score is above --fail-under value. Syntax same as enable. Messages
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fail-under=10.0
# Files or directories to be skipped. They should be base names, not paths.
ignore=CVS
# Add files or directories matching the regex patterns to the ignore-list. The
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# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the
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# Control the amount of potential inferred values when inferring a single
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# complex, nested conditions.
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# List of plugins (as comma separated values of python module names) to load,
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persistent=yes
# When enabled, pylint would attempt to guess common misconfiguration and emit
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suggestion-mode=yes
# Allow loading of arbitrary C extensions. Extensions are imported into the
# active Python interpreter and may run arbitrary code.
unsafe-load-any-extension=no
[MESSAGES CONTROL]
# Only show warnings with the listed confidence levels. Leave empty to show
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disable=missing-module-docstring,
missing-class-docstring,
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line-too-long,
raw-checker-failed,
bad-inline-option,
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suppressed-message,
useless-suppression,
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logging-fstring-interpolation
# Enable the message, report, category or checker with the given id(s). You can
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# multiple time (only on the command line, not in the configuration file where
# it should appear only once). See also the "--disable" option for examples.
enable=c-extension-no-member
[REPORTS]
# Python expression which should return a score less than or equal to 10. You
# have access to the variables 'error', 'warning', 'refactor', and 'convention'
# which contain the number of messages in each category, as well as 'statement'
# which is the total number of statements analyzed. This score is used by the
# global evaluation report (RP0004).
evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
# Template used to display messages. This is a python new-style format string
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#msg-template=
# Set the output format. Available formats are text, parseable, colorized, json
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# mypackage.mymodule.MyReporterClass.
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# Activate the evaluation score.
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[REFACTORING]
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# Regular expression which should only match function or class names that do
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property-classes=abc.abstractproperty
# Naming style matching correct variable names.
variable-naming-style=snake_case
# Regular expression matching correct variable names. Overrides variable-
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[FORMAT]
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# Regexp for a line that is allowed to be longer than the limit.
ignore-long-lines=^\s*(# )?<?https?://\S+>?$
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# tab).
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# Maximum number of lines in a module.
max-module-lines=1000
# Allow the body of a class to be on the same line as the declaration if body
# contains single statement.
single-line-class-stmt=no
# Allow the body of an if to be on the same line as the test if there is no
# else.
single-line-if-stmt=no
[LOGGING]
# The type of string formatting that logging methods do. `old` means using %
# formatting, `new` is for `{}` formatting.
logging-format-style=new
# Logging modules to check that the string format arguments are in logging
# function parameter format.
logging-modules=logging
[MISCELLANEOUS]
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notes=FIXME,
XXX,
TODO
# Regular expression of note tags to take in consideration.
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[SIMILARITIES]
# Comments are removed from the similarity computation
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# Docstrings are removed from the similarity computation
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# Imports are removed from the similarity computation
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# Signatures are removed from the similarity computation
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# Minimum lines number of a similarity.
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[SPELLING]
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# Spelling dictionary name. Available dictionaries: none. To make it work,
# install the 'python-enchant' package.
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# List of comma separated words that should be considered directives if they
# appear and the beginning of a comment and should not be checked.
spelling-ignore-comment-directives=fmt: on,fmt: off,noqa:,noqa,nosec,isort:skip,mypy:
# List of comma separated words that should not be checked.
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# A path to a file that contains the private dictionary; one word per line.
spelling-private-dict-file=
# Tells whether to store unknown words to the private dictionary (see the
# --spelling-private-dict-file option) instead of raising a message.
spelling-store-unknown-words=no
[STRING]
# This flag controls whether inconsistent-quotes generates a warning when the
# character used as a quote delimiter is used inconsistently within a module.
check-quote-consistency=no
# This flag controls whether the implicit-str-concat should generate a warning
# on implicit string concatenation in sequences defined over several lines.
check-str-concat-over-line-jumps=no
[TYPECHECK]
# List of decorators that produce context managers, such as
# contextlib.contextmanager. Add to this list to register other decorators that
# produce valid context managers.
contextmanager-decorators=contextlib.contextmanager
# List of members which are set dynamically and missed by pylint inference
# system, and so shouldn't trigger E1101 when accessed. Python regular
# expressions are accepted.
generated-members=
# Tells whether missing members accessed in mixin class should be ignored. A
# mixin class is detected if its name ends with "mixin" (case insensitive).
ignore-mixin-members=yes
# Tells whether to warn about missing members when the owner of the attribute
# is inferred to be None.
ignore-none=yes
# This flag controls whether pylint should warn about no-member and similar
# checks whenever an opaque object is returned when inferring. The inference
# can return multiple potential results while evaluating a Python object, but
# some branches might not be evaluated, which results in partial inference. In
# that case, it might be useful to still emit no-member and other checks for
# the rest of the inferred objects.
ignore-on-opaque-inference=yes
# List of class names for which member attributes should not be checked (useful
# for classes with dynamically set attributes). This supports the use of
# qualified names.
ignored-classes=optparse.Values,thread._local,_thread._local
# List of module names for which member attributes should not be checked
# (useful for modules/projects where namespaces are manipulated during runtime
# and thus existing member attributes cannot be deduced by static analysis). It
# supports qualified module names, as well as Unix pattern matching.
ignored-modules=
# Show a hint with possible names when a member name was not found. The aspect
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# The minimum edit distance a name should have in order to be considered a
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[VARIABLES]
# List of additional names supposed to be defined in builtins. Remember that
# you should avoid defining new builtins when possible.
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# Tells whether unused global variables should be treated as a violation.
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# Argument names that match this expression will be ignored. Default to name
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# Tells whether we should check for unused import in __init__ files.
init-import=no
# List of qualified module names which can have objects that can redefine
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[CLASSES]
# Warn about protected attribute access inside special methods
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# List of method names used to declare (i.e. assign) instance attributes.
defining-attr-methods=__init__,
__new__,
setUp,
__post_init__
# List of member names, which should be excluded from the protected access
# warning.
exclude-protected=_asdict,
_fields,
_replace,
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# List of valid names for the first argument in a class method.
valid-classmethod-first-arg=cls
# List of valid names for the first argument in a metaclass class method.
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[DESIGN]
# List of qualified class names to ignore when counting class parents (see
# R0901)
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# Maximum number of arguments for function / method.
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# Maximum number of attributes for a class (see R0902).
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# Maximum number of boolean expressions in an if statement (see R0916).
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# Maximum number of branch for function / method body.
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# Maximum number of locals for function / method body.
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# Maximum number of public methods for a class (see R0904).
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# Maximum number of return / yield for function / method body.
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# Maximum number of statements in function / method body.
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# Minimum number of public methods for a class (see R0903).
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# only in one or another interpreter, leading to false positives when analysed.
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# Deprecated modules which should not be used, separated by a comma.
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# Output a graph (.gv or any supported image format) of external dependencies
# to the given file (report RP0402 must not be disabled).
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# Output a graph (.gv or any supported image format) of all (i.e. internal and
# external) dependencies to the given file (report RP0402 must not be
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preferred-modules=
[EXCEPTIONS]
# Exceptions that will emit a warning when being caught. Defaults to
# "BaseException, Exception".
overgeneral-exceptions=BaseException,
Exception
07070100000002000081A40000000000000000000000016851E67900000806000000000000000000000000000000000000001F00000000oauth2-clientd-0.10.0/FILES.md# File Formats
## Access Token
The access token written to the output file or published via the UNIX socket is unmodified from the token received from the provider (i.e. unencrypted). The format of the token itself is defined by the provider. [RFC 6749](https://tools.ietf.org/html/rfc6749#page-10) describes the access token as "a string presenting an authorization issued to the client. The string is usually opaque to the client."
## Session File
The session file is stored in JSON format using utf-8 encoding. It consists of four top-level variables:
* `cryptoparams`
* The cryptographic parameters required to access the information contained in the `data` field.
* `algo` - The algorithm used to encrypt the data, currently only `"AES"` is supported.
* `mode` - The cipher mode used to encrypt the data, currently only `"CTR"` is supported.
* `key` - The key used to encrypt the data, itself encrypted using the RSA public key below then encoded as base64.
* Different algorithms and modes will use different fields to describe their additional input. AES-CTR requires:
* `nonce` - The nonce used to initialize the cipher encoded as base64.
* `data`- The session dictionary serialized as a JSON document, encrypted using the parameters above and encoded as base64.
* `client`- The client information used when establishing the refresh token.
* `client_id` - The client ID presented to the server
* `client_secret` - The client secret presented to the server (optional)
* `registration` - The registration dictionary used when establishing the refresh token. It contains the URIs and other fields required to contact the OAUTH2 server.
* `tokendata` - The token dictionary provided by oauthlib. The fields match the fields defined in [RFC 6749](https://tools.ietf.org/html/rfc6749).
* `private_key` - The RSA private key used to decrypt the cryptographic key described in `cryptoparams` encoded as base64.
* `public_key` - The RSA public key used to encrypt the cryptographic key described in `cryptoparams` encoded as base64.
07070100000003000081A40000000000000000000000016851E67900004659000000000000000000000000000000000000001E00000000oauth2-clientd-0.10.0/LICENSE GNU GENERAL PUBLIC LICENSE
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otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the 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 a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE 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.
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
convey 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 General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.
07070100000004000081A40000000000000000000000016851E679000000CF000000000000000000000000000000000000001F00000000oauth2-clientd-0.10.0/Makefilebuild: oauth2_clientd/*.py scripts/oauth2-clientd
python3 setup.py build
test: build
mypy oauth2_clientd scripts/oauth2-clientd
pylint oauth2_clientd
pylint --from-stdin script < scripts/oauth2-clientd
07070100000005000081A40000000000000000000000016851E6790000211B000000000000000000000000000000000000002000000000oauth2-clientd-0.10.0/README.md# oauth2-clientd
oauth2-clientd is a script to manage OAUTH2 tokens for terminal or
headless Mail User Agents (MUAs) like fetchmail or mutt.
It can obtain a refresh token, securely store it, periodically update it,
and return access tokens on-demand via either a plaintext file or UNIX socket.
## Installation
You will need the following dependencies:
$ pip3 install --user oauthlib requests-oauthlib python-daemon
Then to install:
$ python3 setup.py install --user
## Getting started
To get started, you'll need to generate a refresh token.
$ oauth2-clientd -a -c <clientid> [-P <provider>] /path/to/sessionfile
If the sessionfile exists, it will be not overwritten without --force.
If left unspecified, the default provider is Microsoft Office 365.
You'll be prompted for two things:
- The secret for the clientid, if any.
- The password for the private key (with confirmation)
Then you'll be presented with a URL to follow in your browser to authenticate
to your provider.
If the provider is configured to redirect to localhost, an HTTP listener
will be started on a random port. Otherwise, you'll need to copy-and-paste
the authorization URL the provider sends as a response. If your MUA is
running on a remote system, you can specify the port to use for the listener
with `-p <port>` to allow an SSH tunnel to be used to forward the response
to the script.
Once the refresh token is obtained, oauth2-clientd will wait until
interrupted, refreshing the refresh token 5 minutes before it expires.
## Output
By default, oauth2-clientd will refresh the token and output an access
token on stdout. Your MUA will probably either use a command to fetch a
new access token or expect the access token to be written to a plaintext
file on disk.
oauth2-clientd exports tokens in two ways:
The following options can be used to start up an HTTP listener on the specified
UNIX socket. If the socket exists it will be removed and replaced.
$ oauth2-clientd -s /path/to/socket /path/to/sessionfile
Your MUA can be configured to retreive the access token with a simple command:
$ curl --unix-socket /path/to/socket http://localhost
If your client requires a plaintext file, the following command will write out
such a file each time the token is refreshed:
$ oauth2-clientd -f /path/to/file /path/to/sessionfile
Both options can be used at the same time but each can only be specified once.
## Background
The script can be daemonized using the -D option which takes the path
to a logfile as an argument.
$ oauth2-clientd [other options] -D /path/to/logfile /path/to/sessionfile
## Security
The tokens are kept secure on disk using AES encryption. Each time the
tokens are written, a new key is generated, and encrypted with the RSA
public key generated during the authorize step. The password for the private
key is used during startup to unlock the saved tokens and is unused after
that. The refresh token is kept in memory but never written to disk in
unencrypted form. The access token is available in plaintext but should
be configured with a short expiration time.
## Configuration
With version 0.7, oauth2-clientd uses external configuration files to setup
provider definitions. The defaults have remained the same and are shipped in
a package resource file named `builtin-providers.conf`. This file,
`/etc/oauth2-client.conf`, and `~/.config/oauth2-clientd/oauth2-clientd.conf`
will be read in order and each is optional. Additional configuration files
can be specified on the command line via the `-C <filename>`. The defaults
can be cleared by using `-C ""` or `-C /dev/null` and subsequent uses of `-C`
will again be additive.
It is possible to extend provider definitions by inheriting from existing ones,
adding or clearing options as needed. The most common use for this is
to specify site- or user- specific client IDs and optional client secrets
to existing profile definitions. To clear an option, assign it an empty value.
### Format
The configuration file format is the familiar [.INI](https://en.wikipedia.org/wiki/INI_file)
file format used in many projects. The `DEFAULT` section defines the default
provider definition using the `provider` option. Other sections define
providers using the name of the section as the name of the provider. The
options consumed by this tool are as follows:
- `authorize_endpoint`: The URI to use to obtain an authorization code.
- `token_endpoint`: The URI to use to obtain tokens using the authorization
code or the refresh token..
- `redirect_uri`: The URI to redirect the client to after successfully
obtaining the refresh token. For this tool to work properly, it must be: `http://localhost`
- `sasl_method`: The SASL method used. Will be `XOAUTH2` or `OAUTHBEARER`.
- `scope`: The scopes associated with the token. These will be site and
resource specific. Please reference the documentation for the service you
are using to obtain proper scopes for the resource being accessed.
For a full provider definition, reference the provided `builtin-providers.conf`
file.
### Example
The following example, using contrived credentials, extends the Office365
definition for your site and uses it as the default provider. These
configuration sections can be added to a one of the known locations shown
above or in a new file used via `-C`.
[DEFAULT]
provider = site-o365
[site-o365]
inherits = office365
client_id = e9b20c6d-641d-4cf4-878d-fe78ff79746f
client_secret =
## Client IDs
A client ID and optional secret is required for oauth2-clientd to
successfully authenticate via OAUTH2.
### Office 365
For corporate Office 365, your administrator will have to add a client ID
to your organization's Active Directory instance. Once a client ID and
optional client secret have been obtained, they can be specified using the
`-c <clientid>` option or by adding a `client_id= <clientid>` option to a
provider definition in a known configuration file. See
[Configuration](#Configuration) above.
### Outlook.com personal accounts
Outlook.com personal accounts are not supported yet and need more research.
### Gmail and Google Workspace
For personal Gmail accounts, you'll need to register this application
as a valid application in the Google Cloud Platform [Console](https://console.cloud.google.com/apis/credentials). The same applies to Workspace domains
but your account must have administrative privileges to do it.
If you haven't used this service prior to configuring these Client IDs, you'll
have to accept the terms of service and create a new project (or use an
existing one).
Once the project is created, select it and go to the APIs [pane](https://console.cloud.google.com/apis).
There, you'll need to configure the "OAuth Consent Screen" first.
You'll need to choose a user type. `External` will work for the purposes
of setting up the client IDs for this use. Next you'll enter a workflow:
- (1) OAuth Consent Screen
- App Information
- App name: `<oauth2-clientd>` -- This is for your own reference
- User support email: `<this will be a pull down of your registered email addresses or groups>`
- App logo: (optional)
- App domain (optional)
- Authorized domains (optional)
- Developer contact information `<same email address as above>`
- (2) Scopes
- Click on _Add or remove scopes_
- Manually add scopes
- `https://mail.google.com`
- (3) Test Users
- Click on _Add users_
- Add your gmail address
Next select the _Credentials_ pane.
Click _+ CREATE CREDENTIALS_ and select _OAuth Client ID_. The
application type will be _Web Application._ Once you select it, a number
of other fields will appear. The _Name_ field is for you to be able to
identify the client ID later and can be whatever you like. Click
_+ Add URI_ under the _Authorized redirect URIs_ heading and add
`http://localhost` before clicking _Create_. Once you've created it,
it will display the client ID and secret. These will be available via
the Credentials console for you to reference in the future.
Once you have the client ID and secret, you can establish your tokens using
$ oauth2-clientd -P google -c <clientid> -a /path/to/sessionfile
and then following the instructions under [Getting Started](#Getting-Started).
The client ID can also be specified in a new provider section in a known
configuration file. See [Configuration](#Configuration) above.
07070100000006000041ED0000000000000000000000026851E67900000000000000000000000000000000000000000000002500000000oauth2-clientd-0.10.0/oauth2_clientd07070100000007000081A40000000000000000000000016851E67900000027000000000000000000000000000000000000003100000000oauth2-clientd-0.10.0/oauth2_clientd/__init__.py
__all__ = [ 'cli', 'sessionmanager' ]
07070100000008000081ED0000000000000000000000016851E67900004ED6000000000000000000000000000000000000002C00000000oauth2-clientd-0.10.0/oauth2_clientd/cli.pyimport os
import os.path
import argparse
import stat
import sys
import time
import signal
import shutil
import getpass
import contextlib
import subprocess
import logging
from configparser import ConfigParser
try:
import importlib.resources as pkg_resources
except ImportError:
import importlib_resources as pkg_resources # type: ignore
from typing import Any, Dict, List, Optional, TextIO, Union
import daemon # type: ignore
import daemon.pidfile # type: ignore
from lockfile import AlreadyLocked # type: ignore
from oauthlib.oauth2.rfc6749.errors import OAuth2Error # type: ignore
from .sessionmanager import OAuth2ClientManager
from .sessionmanager import NoTokenError, NoPrivateKeyError
log = logging.getLogger()
DATE_FORMAT='%Y-%m-%d %H:%M:%S'
LOG_FORMAT = "%(asctime)s.%(msecs)03d %(threadName)s[%(process)d] %(levelname)s %(message)s"
DEFAULT_CONFIG_PATHS = [
'/etc/oauth2-clientd.conf',
os.path.expanduser('~/.config/oauth2-clientd/oauth2-clientd.conf')
]
try:
from contextlib import nullcontext
except ImportError:
# pylint: disable=invalid-name
class nullcontext(contextlib.AbstractContextManager): # type: ignore
def __init__(self, enter_result=None):
self.enter_result = enter_result
def __enter__(self):
return self.enter_result
def __exit__(self, *excinfo):
pass
def shutdown_listeners_and_exit(oaclient: OAuth2ClientManager) -> None:
log.warning("Shutting down")
oaclient.stop_file_writer()
oaclient.stop_socket_listener()
sys.exit(0)
class SignalHandler:
def __init__(self, client: OAuth2ClientManager) -> None:
self.client = client
def __call__(self, signum: int, trace: Any) -> None:
shutdown_listeners_and_exit(self.client)
def token_needs_refreshing(token: Dict[str, Any], threshold: int) -> bool:
return token['expires_at'] + threshold > time.time()
# CLOCK_BOOTTIME was added in Python 3.7, so we'll use CLOCK_REALTIME on
# earlier releases.
def get_boottime() -> int:
try:
return int(time.clock_gettime(time.CLOCK_BOOTTIME))
except AttributeError:
return int(time.clock_gettime(time.CLOCK_REALTIME))
# This is a workaround. All implementations of sleep() in Python use
# CLOCK_MONOTONIC, which has the advantage of never going backward but it
# also stops while the system is suspended. If the system is suspended for
# longer than the specified threshold, we'll miss the renewal window.
# This workaround uses the CLOCK_BOOTTIME clock, which does _not_
# stop while the system is suspended, but since there is no direct way to
# access clock_nanosleep directly from Python, we'll have to settle for
# a loop with short timeouts to check if we've passed the deadline.
# [There is the monotonic_time third-party module but it uses dlopen to
# access clock_nanosleep and that's even worse of a hack IMO.]
def wallclock_sleep(timeout: int, step: int = 60) -> None:
deadline = get_boottime() + timeout
while timeout > 0:
step = min(step, timeout)
time.sleep(step)
timeout = deadline - get_boottime()
def wait_for_refresh_timeout(oaclient: OAuth2ClientManager, thresh: int) -> None:
if not oaclient.token:
raise NoTokenError("No token to refresh")
timeout = int(oaclient.access_token_expiry - thresh - time.time())
if timeout > 0:
log.info(f"Waiting {int(timeout)}s to refresh token.")
wallclock_sleep(timeout)
if time.time() > oaclient.access_token_expiry:
log.info("Token has expired.")
def run_update_hook(update_hook: str, access_token: str) -> None:
try:
log.info(f"Running update hook {update_hook} for new access token.")
subprocess.run([update_hook], input=access_token, text=True, timeout=5, check=True)
except subprocess.TimeoutExpired as ex:
log.warning(f"Update hook {update_hook} timed out after {ex.timeout}s.")
except subprocess.CalledProcessError as ex:
ret = ex.returncode
if ret > 0:
log.warning(f"Update hook {update_hook} failed. Exited with status={ret}.")
else:
log.warning(f"Update hook {update_hook} terminated by signal {-ret}.")
def main_loop(oaclient: OAuth2ClientManager, sockname: Optional[str],
filename: Optional[str], threshold: int = 300,
update_hook: Optional[str] = None) -> None:
if not oaclient.token:
raise NoTokenError("No token to monitor")
if token_needs_refreshing(oaclient.token, threshold):
oaclient.refresh_token()
oaclient.save_session()
if sockname:
oaclient.start_socket_listener(sockname)
if filename:
oaclient.start_file_writer(filename)
# Assume the access token has been changed since the last startup
if update_hook:
run_update_hook(update_hook, oaclient.token['access_token'])
try:
while True:
wait_for_refresh_timeout(oaclient, threshold)
log.debug("Wait for refresh complete")
oaclient.refresh_token()
oaclient.save_session()
if update_hook:
run_update_hook(update_hook, oaclient.token['access_token'])
elif log.level >= logging.DEBUG and not filename and not sockname:
print("\nBEGIN ACCESS TOKEN")
if oaclient.token and 'access_token' in oaclient.token:
print(oaclient.token['access_token'])
else:
raise NoTokenError("Token was supposed to be refreshed but is missing")
except KeyboardInterrupt:
shutdown_listeners_and_exit(oaclient)
def parse_arguments(config: ConfigParser) -> argparse.Namespace:
provider_help : Dict[str, Union[Optional[str], List[str]]]
try:
default_provider = config['DEFAULT']['provider']
provider_help = {
'default' : default_provider,
'help' : f'provider to request tokens (default={default_provider})',
}
except KeyError:
provider_help = {
'default' : None,
'help' : 'provider to request tokens',
}
parser = argparse.ArgumentParser(add_help=False)
parser.add_argument('-h', '--help', action='store_true',
help='display this message and exit')
parser.add_argument('-v', '--verbose', action='store_true',
help='increase verbosity')
parser.add_argument('-d', '--debug', action='store_true',
help='enable debug output')
parser.add_argument('-C', '--config', type=str, action='append',
help='specify config file -- can be invoked more than once; empty path or /dev/null will clear options loaded from previously read/default files')
parser.add_argument('-a', '--authorize', action='store_true',
help='generate a new refresh token on startup using the default clientid and secret for the provider')
parser.add_argument('-c', '--clientid', type=str, default=None,
help='specify client id to use for authorization if different than the default (or if there is no default).')
parser.add_argument('-p', '--port', type=int, default=0,
help='specify port for http server (useful for tunneling to remote host)')
parser.add_argument('-D', '--daemonize', type=str, dest='logfile',
help='detach and daemonize after user interaction is complete, logging to file')
parser.add_argument('-f', '--file', type=str, default=None,
help='write access token to <file> (periodically, prior to expiration, if in daemon mode)')
parser.add_argument('-i', '--pidfile', type=str, default=None, dest='pidfile',
help='write daemon pid to <pidfile>')
parser.add_argument('-s', '--socket', type=str, default=None,
help='create a UNIX socket at <socket> with an http listener to provide access token on request')
parser.add_argument('-P', '--provider', type=str, **provider_help) # type: ignore
parser.add_argument('-l', '--list-providers', action='store_true',
help='print available providers and exit.')
parser.add_argument('--dump-config', action='store_true',
help='display loaded configuration and exit')
parser.add_argument('-q', '--quiet', action='store_true', help='limit unnecessary output')
parser.add_argument('-t', '--threshold', type=int, default=300,
help='threshold before expiration to attempt to refresh tokens. (default=300s)')
parser.add_argument('-u', '--update-hook', type=str, default=None,
help='path to command to call when token is updated (will receive access token on stdin)')
parser.add_argument('--force', action='store_true', help='overwrite sessionfile if it exists')
# Options that don't require a session file and shouldn't fail should the argument
# be absent.
(args, _) = parser.parse_known_args()
if (args.list_providers or args.dump_config) and not args.help:
return args
parser.add_argument('sessionfile', help='path to store encrypted session and refresh token')
if args.help:
parser.print_help()
sys.exit(0)
args = parser.parse_args()
return args
def resolve_registration(config: ConfigParser, provider: str, loops: Optional[List[str]] = None) -> Dict[str, str]:
reg = dict(config[provider])
if 'inherits' in reg:
if loops is None:
loops = [provider]
elif provider in loops:
raise FatalError(f"Config error: Provider '{provider}' is already in the dependency chain")
else:
loops.append(provider)
if reg['inherits'] not in config:
raise FatalError(f"Config error: Provider '{provider}' inherits from provider '{reg['inherits']}' which does not exist.")
inherited = resolve_registration(config, reg['inherits'], loops)
reg = { **inherited, **reg }
return reg
_REQUIRED_KEYS = [ 'authorize_endpoint', 'token_endpoint',
'sasl_method', 'scope', 'redirect_uri' ]
def validate_registration(provider: str, registration: Dict[str, str]):
for key in _REQUIRED_KEYS:
if not key in registration:
raise FatalError(f"Definition for provider '{provider}' is missing option '{key}'.")
class FatalError(RuntimeError):
pass
def read_config(config: ConfigParser, path: str, verbose: bool) -> None:
try:
msg = f"Reading config from '{path}'"
with open(path, encoding='utf8', errors="surrogateescape") as config_file:
config.read_file(config_file)
msg += "."
except OSError as ex:
msg += f" failed: {ex.strerror}. [ignoring]"
finally:
if verbose:
print(msg, file=sys.stderr)
def dump_config(config: ConfigParser, stream: TextIO):
print("Loaded configuration: ", file=stream)
config.write(stream)
def dump_providers(config: ConfigParser, stream: TextIO):
print(f"Available providers: {', '.join(config.sections())}", file=stream)
def update_logging(verbose: bool, debug: bool) -> None:
loglevel = logging.WARNING
if debug:
loglevel = logging.DEBUG
elif verbose:
loglevel = logging.INFO
log.setLevel(loglevel)
def early_verbose(args: List[str]) -> bool:
return ('-v' in args or '--verbose' in args or
'-d' in args or '--debug' in args)
def main() -> None:
config = ConfigParser()
stderr_log_handler = logging.StreamHandler(stream=sys.stderr)
log.addHandler(stderr_log_handler)
update_logging(False, False)
# We read the configs prior to parsing the command line but we'll still want
# to be able to report opening configs
verbose = early_verbose(sys.argv)
msg = "Reading 'builtin-providers.conf' from package data"
try:
text = pkg_resources.open_text('oauth2_clientd.data', 'builtin-providers.conf')
config.read_file(text)
if verbose:
print(msg + ".", file=sys.stderr)
except FileNotFoundError:
print(msg + " failed. Defaults may be unavailable.", file=sys.stderr)
for path in DEFAULT_CONFIG_PATHS:
read_config(config, path, verbose)
args = parse_arguments(config)
update_logging(args.verbose, args.debug)
# If -C was used, we'll need to add those into the mix
if args.config:
for configfile in args.config:
if configfile in ('', '/dev/null'):
config = ConfigParser()
if args.debug:
print("Resetting configuration.", file=sys.stderr)
continue
read_config(config, configfile, verbose)
if args.dump_config:
dump_config(config, sys.stdout)
sys.exit(0)
if args.list_providers:
dump_providers(config, sys.stdout)
sys.exit(0)
if args.provider:
provider = args.provider
else:
try:
provider = config['DEFAULT']['provider']
except KeyError as ex:
raise FatalError('No default provider configured.') from ex
if not provider in config:
if args.debug:
dump_config(config, sys.stderr)
elif args.verbose:
dump_providers(config, sys.stderr)
raise FatalError(f"No provider '{provider}' configured.")
if args.update_hook:
try:
hook_st = os.stat(args.update_hook)
except IOError as ex:
raise FatalError(f"Could not stat update hook {args.update_hook}: {ex.strerror}") from ex
if not stat.S_ISREG(hook_st.st_mode):
raise FatalError(f"Update hook {args.update_hook} is not a regular file.")
if hook_st.st_mode & stat.S_IXUSR == 0:
raise FatalError(f"Update hook {args.update_hook} is not executable.")
if args.pidfile:
pidfile_path = os.path.realpath(args.pidfile)
oa2cd_pidfile = daemon.pidfile.TimeoutPIDLockFile(pidfile_path)
# If we know the pidfile is there, we can skip asking the user
# for the password and exit early. This is racy and for convenience
# only. It's checked properly before we start the main loop.
if oa2cd_pidfile.is_locked():
pid = oa2cd_pidfile.read_pid()
raise FatalError(f"PID file {pidfile_path} is already locked by PID {pid}.")
else:
oa2cd_pidfile = nullcontext()
try:
if args.authorize:
registration = resolve_registration(config, provider)
validate_registration(provider, registration)
if args.clientid:
clientid = args.clientid
elif 'client_id' in registration:
clientid = registration['client_id']
else:
raise FatalError(f"Provider {args.provider} has no default client id set.\nPlease provide one with --clientid.")
client_data = {
'client_id' : clientid,
}
if os.path.exists(args.sessionfile) and not args.force:
raise FatalError(f"{args.sessionfile} already exists.")
# A missing client_secret will cause a password prompt.
# If the client_secret key is present, even with an empty
# string or None, we'll use that.
if 'client_secret' in registration and not args.clientid:
client_data['client_secret'] = registration['client_secret']
else:
try:
secret = getpass.getpass(f"Secret for clientid {clientid} (leave empty if there is no secret): ")
if secret:
client_data['client_secret'] = secret
except (EOFError, KeyboardInterrupt) as ex:
raise FatalError("\nFailed to obtain client secret.") from ex
if 'tenant' in registration:
client_data['tenant'] = registration['tenant']
try:
oaclient = OAuth2ClientManager.from_new_authorization(registration, client_data,
args.port)
except OAuth2Error as ex:
log.error(f"Failed to obtain authorization: {str(ex)}.")
if args.debug:
raise ex from ex
sys.exit(1)
oaclient.save_session(args.sessionfile, overwrite=args.force)
else:
try:
# NB: If we make a request before daemonizing, we'll have to
# re-establish the session afterwards as the sockets backing
# the connection pool will have been closed.
oaclient = OAuth2ClientManager.from_saved_session(args.sessionfile)
if not oaclient.token:
raise NoTokenError("Session didn't contain valid session.")
except (FileNotFoundError, PermissionError) as ex:
raise FatalError(f"Couldn't open session file: {str(ex)}") from ex
except NoPrivateKeyError as ex:
raise FatalError(f"\n{str(ex)}") from ex
daemonize = False
if args.logfile:
daemonize = True
if not args.file and not args.socket:
columns = shutil.get_terminal_size((80, 25))[0]
if not args.quiet:
raise FatalError("No file or socket was specified")
if (oaclient.token and
token_needs_refreshing(oaclient.token, args.threshold)):
oaclient.refresh_token()
if oaclient.token and 'access_token' in oaclient.token:
if not args.quiet:
raise FatalError("No file, socket, or update hook was specified")
if oaclient.token and 'access_token' in oaclient.token:
if not args.quiet:
print("Current access token follows:", file=sys.stderr)
print(columns * '-', file=sys.stderr)
print(oaclient.token['access_token'])
if not args.quiet:
print(columns * '-', file=sys.stderr)
else:
log.error("No valid access token found.")
sys.exit(0)
else:
daemonize = False
logfile: Optional[TextIO] = None
if daemonize:
try:
# We open it here just to get an error for the user before
# we daemonize.
# pylint: disable=consider-using-with
logfile = open(args.logfile, 'w+', encoding='utf8', errors="surrogateescape")
logfile_handler = logging.StreamHandler(stream=logfile)
log.addHandler(logfile_handler)
except (OSError, IOError) as ex:
raise FatalError(f"Failed to open logfile {logfile}: {ex.args[1]}.") from ex
context = daemon.DaemonContext(files_preserve=[logfile],
working_directory=os.getcwd(),
pidfile=oa2cd_pidfile,
stdout=sys.stdout,
stderr=sys.stderr)
context.signal_map = {
signal.SIGTERM: SignalHandler,
signal.SIGHUP: 'terminate',
}
else:
context = oa2cd_pidfile
try:
with context:
if logfile:
sys.stderr.close()
sys.stdout.close()
sys.stderr = logfile
sys.stdout = logfile
log.removeHandler(stderr_log_handler)
else:
logfile_handler = stderr_log_handler
# Now that we're starting up for real, some timestamps and other
# information may be useful for logging.
logfile_formatter = logging.Formatter(fmt=LOG_FORMAT, datefmt=DATE_FORMAT)
logfile_handler.setFormatter(logfile_formatter)
main_loop(oaclient, args.socket, args.file, args.threshold, args.update_hook)
except AlreadyLocked as ex:
raise FatalError(f"{ex} by PID {oa2cd_pidfile.read_pid()}") from ex
07070100000009000041ED0000000000000000000000026851E67900000000000000000000000000000000000000000000002A00000000oauth2-clientd-0.10.0/oauth2_clientd/data0707010000000A000081A40000000000000000000000016851E67900000000000000000000000000000000000000000000003600000000oauth2-clientd-0.10.0/oauth2_clientd/data/__init__.py0707010000000B000081A40000000000000000000000016851E679000002A9000000000000000000000000000000000000004100000000oauth2-clientd-0.10.0/oauth2_clientd/data/builtin-providers.conf[DEFAULT]
provider = office365
[google]
authorize_endpoint = https://accounts.google.com/o/oauth2/auth
token_endpoint = https://accounts.google.com/o/oauth2/token
redirect_uri = http://localhost
sasl_method = OAUTHBEARER
scope = https://mail.google.com/
[office365]
authorize_endpoint = https://login.microsoftonline.com/common/oauth2/v2.0/authorize
token_endpoint = https://login.microsoftonline.com/common/oauth2/v2.0/token
redirect_uri = http://localhost
sasl_method = XOAUTH2
scope = offline_access https://outlook.office.com/IMAP.AccessAsUser.All https://outlook.office.com/POP.AccessAsUser.All https://outlook.office.com/SMTP.Send
# Alias
[microsoft]
inherits = office365
0707010000000C000081A40000000000000000000000016851E67900001206000000000000000000000000000000000000003300000000oauth2-clientd-0.10.0/oauth2_clientd/encryption.pyimport getpass
import os
import sys
from typing import Dict, Tuple
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives.asymmetric import rsa, padding
from cryptography.hazmat.primitives import serialization, hashes
from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
from .helpers import b64decode, b64encode_str
class NoPrivateKeyError(RuntimeError):
"""Cannot unlock private key"""
def generate_rsa_private_key() -> rsa.RSAPrivateKeyWithSerialization:
return rsa.generate_private_key(public_exponent=65537, key_size=2048,
backend=default_backend())
def encrypt_private_key(private_key: rsa.RSAPrivateKeyWithSerialization,
password_bytes: bytes) -> bytes:
encryption = serialization.BestAvailableEncryption(password_bytes)
return private_key.private_bytes(encoding=serialization.Encoding.PEM,
format=serialization.PrivateFormat.PKCS8,
encryption_algorithm=encryption)
def get_password(minlen: int = 10) -> bytes:
password_bytes = None
while password_bytes is None:
try:
pw1 = getpass.getpass(f"Enter password for new private key (min {minlen} chars): ")
if len(pw1) < 10:
print(f"Password too short. Must be longer than {minlen} characters.",
file=sys.stderr)
continue
pw2 = getpass.getpass("Repeat: ")
except (KeyboardInterrupt, EOFError) as ex:
raise NoPrivateKeyError("Cannot create private key without password.") from ex
if pw1 == pw2:
password_bytes = bytes(pw1.encode())
else:
print("Passwords don't match. Try again.")
return password_bytes
def serialize_public_key(public_key: rsa.RSAPublicKeyWithSerialization) -> bytes:
return public_key.public_bytes(encoding=serialization.Encoding.PEM,
format=serialization.PublicFormat.SubjectPublicKeyInfo)
def generate_rsa_keypair() -> Dict[str, bytes]:
private_key = generate_rsa_private_key()
password = get_password()
private_key_pem = encrypt_private_key(private_key, password)
public_key_pem = serialize_public_key(private_key.public_key())
keypair = {
'public_key_pem' : public_key_pem,
'private_key_pem' : private_key_pem,
}
del private_key
return keypair
def crypto_padding() -> padding.OAEP:
return padding.OAEP(mgf=padding.MGF1(algorithm=hashes.SHA256()),
algorithm=hashes.SHA256(), label=None)
def encrypt(public_key_pem: bytes, data: bytes) -> Tuple[bytes, Dict[str, str]]:
public_key = serialization.load_pem_public_key(public_key_pem, backend=default_backend())
if not isinstance(public_key, rsa.RSAPublicKey):
raise TypeError("Expected RSA key, got {type(public_key)}")
key = os.urandom(32)
nonce = os.urandom(16)
params: Dict[str, str] = {
'algo' : 'AES',
'mode' : 'CTR',
'key' : b64encode_str(public_key.encrypt(key, crypto_padding())),
'nonce' : b64encode_str(nonce),
}
cipher = Cipher(algorithms.AES(key), modes.CTR(nonce), backend=default_backend())
encryptor = cipher.encryptor()
encrypted_data = encryptor.update(data) + encryptor.finalize()
return encrypted_data, params
def decrypt(private_key: rsa.RSAPrivateKeyWithSerialization, cryptoparams: Dict[str, str],
data: bytes) -> bytes:
if cryptoparams['algo'] != 'AES':
raise NotImplementedError(f"Support for cryptographic algorithm {cryptoparams['algo']} not implemented.")
if cryptoparams['mode'] != 'CTR':
raise NotImplementedError(f"Support for cryptographic mode {cryptoparams['mode']} not implemented.")
key = private_key.decrypt(b64decode(cryptoparams['key']), crypto_padding())
del private_key
nonce = b64decode(cryptoparams['nonce'])
cipher = Cipher(algorithms.AES(key), modes.CTR(nonce), backend=default_backend())
decryptor = cipher.decryptor()
return decryptor.update(data) + decryptor.finalize()
def decrypt_private_key(private_key_pem: bytes,
password_bytes: bytes) -> rsa.RSAPrivateKey:
ret = serialization.load_pem_private_key(private_key_pem, password=password_bytes,
backend=default_backend())
if not isinstance(ret, rsa.RSAPrivateKey):
raise TypeError(f"Expected RSAPrivateKey not {type(ret)}")
return ret
0707010000000D000081A40000000000000000000000016851E679000003A0000000000000000000000000000000000000003000000000oauth2-clientd-0.10.0/oauth2_clientd/helpers.pyimport base64
import json
from typing import Any, Dict, Union
def encode_dict(dict_to_dump: Dict[Any, Any]) -> bytes:
dump = bytes(json.dumps(dict_to_dump), 'utf-8')
return base64.urlsafe_b64encode(dump)
def decode_dict(json_dict: bytes) -> str:
text = base64.urlsafe_b64decode(json_dict)
return json.loads(text)
def b64encode(data: Union[bytes, str]) -> bytes:
if not isinstance(data, bytes):
data = bytes(data, 'utf-8')
return base64.urlsafe_b64encode(data)
def b64encode_str(data: bytes) -> str:
return b64encode(data).decode('utf-8')
def b64decode(data: Union[bytes, str]) -> bytes:
if not isinstance(data, bytes):
data = bytes(data, 'utf-8')
return base64.urlsafe_b64decode(data)
def b64decode_str(data: Union[bytes, str]) -> str:
if not isinstance(data, bytes):
data = bytes(data, 'utf-8')
return base64.urlsafe_b64encode(data).decode('utf-8')
0707010000000E000081A40000000000000000000000016851E679000044EE000000000000000000000000000000000000003700000000oauth2-clientd-0.10.0/oauth2_clientd/sessionmanager.pyimport os
import os.path
import threading
import http.server
import socket
import select
import sys
import urllib.parse
import json
import secrets
import hashlib
import base64
import getpass
import stat
import logging
from typing import cast, Any, Dict, Optional, Tuple, Type, Union
from atomicwrites import atomic_write
from requests_oauthlib import OAuth2Session # type: ignore
from .encryption import generate_rsa_keypair, decrypt_private_key, encrypt, decrypt
from .encryption import NoPrivateKeyError
from .helpers import b64decode, b64encode_str, encode_dict
log = logging.getLogger(__name__)
class NoTokenError(RuntimeError):
"""The token is not available"""
try:
from http.server import ThreadingHTTPServer
except ImportError:
from socketserver import ThreadingMixIn
class ThreadingHTTPServer(ThreadingMixIn, http.server.HTTPServer): # type: ignore
daemon_threads = True
class _RedirectURIHandler(http.server.BaseHTTPRequestHandler):
def log_request(self, code: Union[int, str] = '-',
size: Union[int, str] = '-') -> None:
if log.level >= logging.DEBUG:
super().log_request(code, size)
def do_HEAD(self) -> None:
# pylint: disable=invalid-name
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
def _write_already_provided(self) -> None:
self.wfile.write(b'The authorization redirect has already been provided ' +
b'and this server will shut down shortly.')
def _write_redirect_completed(self) -> None:
self.wfile.write(b'Authorization redirect completed. You may '
b'close this window.')
def _write_invalid_request(self) -> None:
self.wfile.write(b'The requested URI does not represent an authorization redirect.')
# pylint: disable=invalid-name
def do_GET(self) -> None:
self.do_HEAD()
self.wfile.write(b'<html><head><title>Authorizaton result</title></head>')
self.wfile.write(b'<body><p>')
path = 'http://localhost' + self.path
server = cast(_ThreadingHTTPServerWithContext, self.server)
if server.context.validate_authurl(path):
with server.context.authurl_lock:
if server.context.authurl:
self._write_already_provided()
else:
server.context.authurl = path
self._write_redirect_completed()
else:
self._write_invalid_request()
self.wfile.write(b'</p></body></html>')
class _TokenSocketHandler(http.server.BaseHTTPRequestHandler):
def log_request(self, code: Union[int, str] = '-',
size: Union[int, str] = '-') -> None:
if log.level >= logging.INFO:
super().log_request(code, size)
# pylint: disable=invalid-name
def do_HEAD(self) -> None:
self.send_response(200)
self.send_header('Content-type', 'text/plain')
self.end_headers()
# pylint: disable=invalid-name
def do_GET(self) -> None:
self.do_HEAD()
server = cast(_ThreadingHTTPServerWithContext, self.server)
with server.context.token_lock:
if (not server.context.token or
not 'access_token' in server.context.token):
raise NoTokenError("Cannot retreive access token")
response = server.context.token['access_token']
self.wfile.write(bytes(response, 'utf-8'))
class _ThreadingHTTPServerWithContext(ThreadingHTTPServer):
def __init__(self, address: Tuple[str, int],
handler: Type[http.server.BaseHTTPRequestHandler],
context: 'OAuth2ClientManager') -> None:
super().__init__(address, handler)
self.context = context
class _UnixSocketThreadingHTTPServer(_ThreadingHTTPServerWithContext):
address_family = socket.AF_UNIX
def __init__(self, filename: str,
handler: Type[http.server.BaseHTTPRequestHandler],
context: 'OAuth2ClientManager') -> None:
super().__init__((filename, 0), handler, context)
def server_bind(self) -> None:
self.socket.bind(self.server_address[0])
def get_request(self) -> Tuple[Any, Tuple[str, int]]:
req, _ = super().get_request()
return req, self.server_address
class OAuth2ClientManager:
def __init__(self, registration: Dict[str, str], client: Dict[str, str]) -> None:
self._registration = registration
self.client = client
self.session_file_path: Optional[str] = None
self.public_key_pem: Optional[bytes] = None
self.saved_session: Dict[str, Any] = {}
self.session: OAuth2Session = None
self.token: Optional[Dict[str, Any]] = None
self.token_lock = threading.Lock()
self.token_changed = threading.Condition(self.token_lock)
self.authurl: Optional[str] = None
self.authurl_lock = threading.Lock()
self._server: Optional[_ThreadingHTTPServerWithContext] = None
self._server_thread: Optional[threading.Thread] = None
self._file_thread: Optional[threading.Thread] = None
self._file_thread_exit = threading.Event()
@property
def access_token_expiry(self) -> float:
if not self.token:
raise NoTokenError("No valid token found.")
if 'expires_at' not in self.token:
raise ValueError("Token is missing expiration")
with self.token_lock:
expiry = self.token['expires_at']
return expiry
@classmethod
def from_saved_session(cls, path: str) -> 'OAuth2ClientManager':
with open(path, 'rb') as session_file:
saved_session = json.loads(session_file.read())
private_key_pem_bytes = bytes(saved_session['private_key'], 'utf-8')
public_key_pem_bytes = bytes(saved_session['public_key'], 'utf-8')
private_key = None
while private_key is None:
try:
password = getpass.getpass("Enter password for private key: ")
except (KeyboardInterrupt, EOFError) as ex:
raise NoPrivateKeyError("Cannot unlock private key without password.") from ex
if not password:
continue
password_bytes = bytes(password.encode())
try:
private_key = decrypt_private_key(private_key_pem_bytes, password_bytes)
except ValueError as ex: # Usually bad password
print(ex)
data = decrypt(private_key, saved_session['cryptoparams'],
b64decode(saved_session['data']))
del private_key
session = json.loads(b64decode(data))
obj = cls(session['registration'], session['client'])
obj.session_file_path = path
obj.saved_session = saved_session
obj.public_key_pem = public_key_pem_bytes
obj.token = session['tokendata']
obj.session = OAuth2Session(session['client'], token=obj.token)
return obj
def save_session(self, path: Optional[str] = None, overwrite: bool = True) -> None:
if path is None and self.session_file_path:
path = self.session_file_path
elif self.session_file_path is None and path:
self.session_file_path = path
else:
raise ValueError("No path specified and no default available.")
if self.public_key_pem is None:
raise ValueError("No public key available for encryption.")
data_dict = {
'client' : self.client,
'registration' : self._registration,
'tokendata' : self.token,
}
data, params = encrypt(self.public_key_pem, encode_dict(data_dict))
self.saved_session['data'] = b64encode_str(data)
self.saved_session['cryptoparams'] = params
if path is None:
raise RuntimeError("No session file named for write.")
jsondata = json.dumps(self.saved_session, sort_keys=True, indent=4)
del self.saved_session['data']
del self.saved_session['cryptoparams']
with atomic_write(path, overwrite=overwrite) as session_file:
print(jsondata, file=session_file)
def _start_server(self) -> None:
if self._server_thread:
raise RuntimeError("Server thread already running.")
if not self._server:
raise RuntimeError("HTTP server not set up yet.")
self._server.context = self
self._server_thread = threading.Thread(target=self._server.serve_forever, name='SocketThread')
self._server_thread.start()
def _setup_redirect_listener(self, port: int = 0) -> None:
self._server = _ThreadingHTTPServerWithContext(('127.0.0.1', port), _RedirectURIHandler, self)
def _get_redirect_listener_port(self) -> int:
if not self._server:
raise RuntimeError("No server configured.")
return self._server.server_address[1]
def _stop_server(self) -> None:
if self._server:
log.debug("Telling HTTP server to shutdown")
self._server.shutdown()
self._server = None
if self._server_thread:
log.debug("Waiting for HTTP server to shutdown")
self._server_thread.join()
self._server_thread = None
log.debug("HTTP server has shutdown")
@staticmethod
def _generate_pkce_context() -> Tuple[str, Dict[str, str]]:
verifier = secrets.token_urlsafe(90)
digest = hashlib.sha256(verifier.encode()).digest()
challenge = base64.urlsafe_b64encode(digest)[:-1].decode('utf-8')
pkce_challenge = {
'code_challenge_method' : 'S256',
'code_challenge' : challenge,
}
return (verifier, pkce_challenge)
@staticmethod
def _print_authurl_prompt() -> None:
print('Please enter the full callback URL: ', end='', flush=True)
def _inform_user_of_listener(self) -> None:
if not self._server:
return
port = self._get_redirect_listener_port()
listening = f"\nA listener has been started at localhost:{port}. When you follow the link, the authorization response will be received automatically."
listening += f"\nIf using this system remotely, you may wish to forward the port to this host by creating a new SSH session with the following options: '-L {port}:localhost:{port}' prior to following the link.\n"
print(listening)
@staticmethod
def validate_authurl(url: str) -> bool:
"""Validate that a url could potentially be an authurl by testing for the 'code' query variable"""
querystring = urllib.parse.urlparse(url).query
qvars = urllib.parse.parse_qs(querystring)
return 'code' in qvars
# This handles racing with the http listener
def _wait_for_authurl_on_stdin(self) -> None:
self._print_authurl_prompt()
while True:
(readers, _, _) = select.select([sys.stdin], [], [], 0.5)
with self.authurl_lock:
if not self.authurl and readers:
try:
url = sys.stdin.readline()
if self.validate_authurl(url):
self.authurl = url
else:
print("Error: No authcode provided.")
self._print_authurl_prompt()
continue
except KeyboardInterrupt:
break
elif self.authurl:
print("(not necessary any longer)\nResponse provided by browser session.\n")
if self.authurl:
break
@classmethod
def from_new_authorization(cls, registration: Dict[str, str], client: Dict[str, str],
port: int = 0) -> 'OAuth2ClientManager':
obj = cls(registration, client)
keypair = generate_rsa_keypair()
obj.saved_session = {
'public_key' : keypair['public_key_pem'].decode('utf-8'),
'private_key' : keypair['private_key_pem'].decode('utf-8'),
}
obj.public_key_pem = keypair['public_key_pem']
obj._new_authorization(port)
return obj
def _new_authorization(self, port: int = 0) -> None:
redirect_uri = self._registration['redirect_uri']
if 'http://localhost' in redirect_uri:
self._setup_redirect_listener(port)
port = self._get_redirect_listener_port()
redirect_uri = f'http://localhost:{port}'
self.session = OAuth2Session(self.client['client_id'], redirect_uri=redirect_uri,
scope=self._registration['scope'])
verifier, pkce_challenge = self._generate_pkce_context()
authorization_url, _ = self.session.authorization_url(self._registration['authorize_endpoint'],
**pkce_challenge)
print(f'Please go to {authorization_url} and authorize access.')
if self._server:
self._start_server()
self._inform_user_of_listener()
self._wait_for_authurl_on_stdin()
if self._server:
self._stop_server()
if not self.authurl:
raise RuntimeError("Stopped waiting for authurl but none found.")
# oauthlib expects redirects to be https -- no need for localhost
if 'http://localhost' in self.authurl:
os.environ['OAUTHLIB_INSECURE_TRANSPORT'] = '1'
# o365 requires the 'offline_access' scope in the request to issue
# refresh tokens but strips it in the response. oauthlib views that
# as a changed scope event that is handled as an error unless relaxed.
os.environ['OAUTHLIB_RELAX_TOKEN_SCOPE'] = '1'
self.token = self.session.fetch_token(self._registration['token_endpoint'],
authorization_response=self.authurl,
include_client_id=True,
**self.client, code_verifier=verifier)
def refresh_token(self) -> None:
log.info("Starting token refresh")
new_token = self.session.refresh_token(self._registration['token_endpoint'], **self.client)
log.info("Token refreshed")
with self.token_changed:
self.token = new_token
self.token_changed.notify()
def get_access_token(self) -> str:
if not self.token or 'access_token' not in self.token:
raise NoTokenError("No access token available")
with self.token_lock:
access_token = self.token['access_token']
return access_token
def write_access_token(self, filename: str) -> None:
if not self.token or 'access_token' not in self.token:
raise NoTokenError("No access token available.")
try:
with atomic_write(filename, overwrite=True) as access_file:
print(self.token['access_token'], file=access_file)
except OSError as ex:
log.warning(f"Failed to write access token to file '{filename}': {ex.strerror}")
def _file_writer(self, filename: str) -> None:
if not self.token or 'access_token' not in self.token:
raise NoTokenError("No access token available.")
my_token: Optional[str] = None
while True:
needs_write = False
with self.token_changed:
if my_token == self.token['access_token']:
self.token_changed.wait()
else:
my_token = self.token['access_token']
needs_write = True
if not my_token:
raise NoTokenError("Access token changed but is unavailable.")
if needs_write:
log.info(f"Writing out new access token to {filename}")
self.write_access_token(filename)
if self._file_thread_exit.is_set():
log.debug("_file_writer: Exiting")
break
def start_file_writer(self, filename: str) -> None:
self._file_thread = threading.Thread(target=self._file_writer, args=((filename),), name='FileWriterThread')
self._file_thread.start()
def stop_file_writer(self) -> None:
if self._file_thread:
log.debug("Telling file thread to exit")
self._file_thread_exit.set()
with self.token_changed:
self.token_changed.notify()
log.debug("Waiting for file thread to exit")
self._file_thread.join()
log.debug("File thread has exited")
def start_socket_listener(self, filename: str) -> None:
if self._server or self._server_thread:
raise RuntimeError("Server already running")
log.debug(f"Starting HTTP listener on {filename}")
if os.path.exists(filename):
sock_stat = os.stat(filename)
if stat.S_ISSOCK(sock_stat.st_mode):
os.unlink(filename)
else:
raise OSError("{filename} already exists but is not a socket. Will not replace.")
self._server = _UnixSocketThreadingHTTPServer(filename, _TokenSocketHandler, self)
self._server.context = self
os.chmod(filename, 0o600)
self._start_server()
def stop_socket_listener(self) -> None:
self._stop_server()
0707010000000F000081A40000000000000000000000016851E679000001FE000000000000000000000000000000000000002500000000oauth2-clientd-0.10.0/pyproject.toml[project]
name = "oauth2-clientd"
version = "0.10.0"
description = "OAUTH2 client that caches refresh tokens securely"
authors = [
{name = "Jeff Mahoney",email = "jeffm@suse.com"}
]
license = {text = "GPL-2.0"}
readme = "README.md"
requires-python = ">=3.7"
dependencies = [
"requests-oauthlib",
"python-daemon",
"cryptography",
"atomicwrites"
]
[project.scripts]
oauth2-clientd = 'oauth2_clientd.cli:main'
[build-system]
requires = ["setuptools"]
build-backend = "setuptools.build_meta"
07070100000010000041ED0000000000000000000000026851E67900000000000000000000000000000000000000000000001E00000000oauth2-clientd-0.10.0/scripts07070100000011000081ED0000000000000000000000016851E679000000ED000000000000000000000000000000000000002D00000000oauth2-clientd-0.10.0/scripts/oauth2-clientd#!/usr/bin/python3
import sys
from oauth2_clientd import cli
if __name__ == '__main__':
try:
cli.main()
except (cli.FatalError, OSError) as ex:
print(str(ex) + " Exiting.", file=sys.stderr)
sys.exit(1)
07070100000012000081ED0000000000000000000000016851E67900000076000000000000000000000000000000000000001F00000000oauth2-clientd-0.10.0/setup.py#!/usr/bin/python3
# vim: sw=4 ts=4 et si:
"""
Setup file for installation
"""
from setuptools import setup
setup()
07070100000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000B00000000TRAILER!!!186 blocks
