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DB_HOST=127.0.0.1
DB_PORT=3306
DB_USER=python
DB_PASSWORD=wolaouais
DB_NAME=Utilisateurs
DB_CHARSET=utf8mb4

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Metadata-Version: 2.1
Name: RPi.GPIO
Version: 0.7.1
Summary: A module to control Raspberry Pi GPIO channels
Home-page: http://sourceforge.net/projects/raspberry-gpio-python/
Author: Ben Croston
Author-email: ben@croston.org
License: MIT
Keywords: Raspberry Pi GPIO
Classifier: Development Status :: 5 - Production/Stable
Classifier: Operating System :: POSIX :: Linux
Classifier: License :: OSI Approved :: MIT License
Classifier: Intended Audience :: Developers
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3
Classifier: Topic :: Software Development
Classifier: Topic :: Home Automation
Classifier: Topic :: System :: Hardware
License-File: LICENCE.txt
This package provides a Python module to control the GPIO on a Raspberry Pi.
Note that this module is unsuitable for real-time or timing critical applications. This is because you
can not predict when Python will be busy garbage collecting. It also runs under the Linux kernel which
is not suitable for real time applications - it is multitasking O/S and another process may be given
priority over the CPU, causing jitter in your program. If you are after true real-time performance and
predictability, buy yourself an Arduino http://www.arduino.cc !
Note that the current release does not support SPI, I2C, hardware PWM or serial functionality on the RPi yet.
This is planned for the near future - watch this space! One-wire functionality is also planned.
Although hardware PWM is not available yet, software PWM is available to use on all channels.
For examples and documentation, visit http://sourceforge.net/p/raspberry-gpio-python/wiki/Home/
Change Log
==========
0.7.1
-------
- Better RPi board + peri_addr detection (issue 190 / 191)
- Fix PyEval_InitThreads deprecation warning for Python 3.9 (issue 188)
- Fix build using GCC 10 (issue 187)
- Fix docstrings to not include licence
- Remove Debian/Raspbian stretch packaging support
- Use setuptools instead of distutils
- Added detection of Zero 2 W
- Tested and working with Python 2.7, 3.7, 3.8, 3.9, 3.10
0.7.0
-----
- Updated RPI_INFO to include RPi 4B
- Fixed pull up/down for Pi4 (issue 168)
- Fix spelling mistake in docstrings
- Tested and working on Raspbian Buster + Python 3.8.0b2
- Fix board detection for aarch64 (Issues 161 / 165)
- Fix checking mmap return value in c_gpio.c (issue 166)
0.6.5
-----
- Fix exception on re-export of /sys/class/gpio/gpioNN
0.6.4
-----
- Event cleanup bug (issue 145)
- Raise exception for duplicate PWM objects (issue 54 - Thijs Schreijer <thijs@thijsschreijer.nl>)
- Fix build warnings (Issue 146 - Dominik George)
- test.py runs unchanged for both python 2+3
- Soft PWM stops running fix (Issues 94, 111, 154)
- Soft PWM segfault fix (Luke Allen pull request)
0.6.3
-----
- Fix code so it builds under PyPy (Gasper Zejn)
- os.system breaks event detection - Matt Kimball (issue 127)
0.6.2
-----
- Rewrote Debian packaging mechanism
- RPI_INFO reports Pi 3
- Changed module layout - moved C components to RPi._GPIO
0.6.1
-----
- Update RPI_INFO to detect more board types
- Issue 118 - add_event_detect sometimes gives runtime error with unpriv user
- Issue 120 - setmode() remembers invalid mode
0.6.0a3
-------
- Now uses /dev/gpiomem if available to avoid being run as root
- Fix warnings with pull up/down on pins 3/5
- Correct base address on Pi 2 when devicetree is disabled
- caddr_t error on compile (Issue 109)
- Error on invalid parameters to setup() (issue 93)
- Add timeout parameter to wait_for_edge() (issue 91)
0.5.11
------
- Fix - pins > 26 missing when using BOARD mode
- Add getmode()
- Raise exception when a mix of modes is used
- GPIO.cleanaup() unsets the current pin mode
0.5.10
------
- Issue 95 - support RPi 2 boards
- Introduce RPI_INFO
- Deprecate RPI_REVISION
- Issue 97 - fixed docstring for setup()
0.5.9
-----
- Issue 87 - warn about pull up/down on i2c pins
- Issue 86/75 - wait_for_edge() bugfix
- Issue 84 - recognise RPi properly when using a custom kernel
- Issue 90 - cleanup() on a list/tuple of channels
0.5.8
-----
- Allow lists/tuples of channels in GPIO.setup()
- GPIO.output() now allows lists/tuples of values
- GPIO.wait_for_edge() bug fixes (issue 78)
0.5.7
-----
- Issue 67 - speed up repeated calls to GPIO.wait_for_event()
- Added bouncetime keyword to GPIO.wait_for_event()
- Added extra edge/interrupt unit tests
- GPIO.wait_for_event() can now be mixed with GPIO.add_event_detect()
- Improved cleanups of events
- Issue 69 resolved
0.5.6
-----
- Issue 68 - support for RPi Model B+
- Fix gpio_function()
0.5.5
-----
- Issue 52 - 'unallocate' a channel
- Issue 35 - use switchbounce with GPIO.event_detected()
- Refactored events code
- Rewrote tests to use unittest mechanism and new test board with loopbacks
- Fixed adding events after a GPIO.cleanup()
- Issue 64 - misleading /dev/mem permissions error
- Issue 59 - name collision with PWM constant and class
0.5.4
-----
- Changed release status (from alpha to full release)
- Warn when GPIO.cleanup() used with nothing to clean up (issue 44)
- Avoid collisions in constants (e.g. HIGH / RISING / PUD_DOWN)
- Accept BOARD numbers in gpio_function (issue 34)
- More return values for gpio_function (INPUT, OUTPUT, SPI, I2C, PWM, SERIAL, UNKNOWN)
- Tidy up docstrings
- Fix /dev/mem access error with gpio_function
0.5.3a
------
- Allow pydoc for non-root users (issue 27)
- Fix add_event_detect error when run as daemon (issue 32)
- Simplified exception types
- Changed from distribute to pip
0.5.2a
------
- Added software PWM (experimental)
- Added switch bounce handling to event callbacks
- Added channel number parameter to event callbacks (issue 31)
- Internal refactoring and code tidy up
0.5.1a
------
- Fixed callbacks for multiple GPIOs (issue 28)
0.5.0a
------
- Added new edge detection events (interrupt handling)
- Added add_event_detect()
- Added remove_event_detect()
- Added add_event_callback()
- Added wait_for_edge()
- Removed old experimental event functions
- Removed set_rising_event()
- Removed set_falling_event()
- Removed set_high_event()
- Removed set_low_event()
- Changed event_detected() for new edge detection functionality
- input() now returns 0/LOW == False or 1/HIGH == True (integers) instead of False or True (booleans).
- Fix error on repeated import (issue 3)
- Change SetupException to a RuntimeError so it can be caught on import (issue 25, Chris Hager <chris@linuxuser.at>)
- Improved docstrings of functions
0.4.2a
------
- Fix for installing on Arch Linux (Python 3.3) (issue 20)
- Initial value when setting a channel as an output (issue 19)
0.4.1a
------
- Added VERSION
- Permit input() of channels set as outputs (Eric Ptak <trouch@trouch.com>)
0.4.0a
------
- Added support for Revision 2 boards
- Added RPI_REVISION
- Added cleanup() function and removed automatic reset functionality on program exit
- Added get_function() to read existing GPIO channel functionality (suggestion from Eric Ptak <trouch@trouch.com>)
- Added set_rising_event()
- Added set_falling_event()
- Added set_high_event()
- Added set_low_event()
- Added event_detected()
- Added test/test.py
- Converted debian to armhf
- Fixed C function short_wait() (thanks to Thibault Porteboeuf <thibaultporteboeuf@gmail.com>)
0.3.1a
------
- Fixed critical bug with swapped high/low state on outputs
- Added pull-up / pull-down setup functionality for inputs
0.3.0a
------
- Rewritten as a C extension
- Now uses /dev/mem and SoC registers instead of /sys/class/gpio
- Faster!
- Make call to GPIO.setmode() mandatory
- Added GPIO.HIGH and GPIO.LOW constants
0.2.0
-----
- Changed status from alpha to beta
- Added setmode() to be able to use BCM GPIO 00.nn channel numbers
- Renamed InvalidPinException to InvalidChannelException
0.1.0
------
- Fixed direction bug
- Added MANIFEST.in (to include missing file)
- Changed GPIO channel number to pin number
- Tested and working!
0.0.3a
------
- Added GPIO table
- Refactored
- Fixed a few critical bugs
- Still completely untested!
0.0.2a
------
- Internal refactoring. Still completely untested!
0.0.1a
------
- First version. Completely untested until I can get hold of a Raspberry Pi!

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CHANGELOG.txt
INSTALL.txt
LICENCE.txt
MANIFEST.in
README.txt
create_gpio_user_permissions.py
setup.cfg
setup.py
RPi/__init__.py
RPi.GPIO.egg-info/PKG-INFO
RPi.GPIO.egg-info/SOURCES.txt
RPi.GPIO.egg-info/dependency_links.txt
RPi.GPIO.egg-info/top_level.txt
RPi/GPIO/__init__.py
source/c_gpio.c
source/c_gpio.h
source/common.c
source/common.h
source/constants.c
source/constants.h
source/cpuinfo.c
source/cpuinfo.h
source/event_gpio.c
source/event_gpio.h
source/py_gpio.c
source/py_pwm.c
source/py_pwm.h
source/soft_pwm.c
source/soft_pwm.h
test/issue_94_111_154.py
test/test.py

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../RPi/GPIO/__init__.py
../RPi/GPIO/__pycache__/__init__.cpython-311.pyc
../RPi/_GPIO.cpython-311-x86_64-linux-gnu.so
../RPi/__init__.py
../RPi/__pycache__/__init__.cpython-311.pyc
PKG-INFO
SOURCES.txt
dependency_links.txt
top_level.txt

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RPi

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# Copyright (c) 2012-2021 Ben Croston
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
# of the Software, and to permit persons to whom the Software is furnished to do
# so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
"""This package provides a Python module to control the GPIO on a Raspberry Pi"""
from RPi._GPIO import *
VERSION = '0.7.1'

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pip

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Metadata-Version: 2.1
Name: flask-talisman
Version: 1.1.0
Summary: HTTP security headers for Flask.
Home-page: https://github.com/wntrblm/flask-talisman
Author: Alethea Katherine Flowers
Author-email: me@thea.codes
License: Apache Software License
Keywords: flask security https xss
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Operating System :: POSIX
Classifier: Operating System :: MacOS
Classifier: Operating System :: Unix
License-File: LICENSE
Talisman: HTTP security headers for Flask
=========================================
|PyPI Version|
Talisman is a small Flask extension that handles setting HTTP headers
that can help protect against a few common web application security
issues.
The default configuration:
- Forces all connects to ``https``, unless running with debug enabled.
- Enables `HTTP Strict Transport
Security <https://developer.mozilla.org/en-US/docs/Web/Security/HTTP_strict_transport_security>`_.
- Sets Flask's session cookie to ``secure``, so it will never be set if
your application is somehow accessed via a non-secure connection.
- Sets Flask's session cookie to ``httponly``, preventing JavaScript
from being able to access its content. CSRF via Ajax uses a separate
cookie and should be unaffected.
- Sets Flask's session cookie to ``Lax``, preventing the cookie to be leaked
in CSRF-prone request methods.
- Sets
`X-Frame-Options <https://developer.mozilla.org/en-US/docs/Web/HTTP/X-Frame-Options>`_
to ``SAMEORIGIN`` to avoid
`clickjacking <https://en.wikipedia.org/wiki/Clickjacking>`_.
- Sets `X-Content-Type-Options
<https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options>`_
to prevent content type sniffing.
- Sets a strict `Content Security
Policy <https://developer.mozilla.org/en-US/docs/Web/Security/CSP/Introducing_Content_Security_Policy>`__
of ``default-src: 'self', 'object-src': 'none'``. This is intended to almost completely
prevent Cross Site Scripting (XSS) attacks. This is probably the only
setting that you should reasonably change. See the
`Content Security Policy`_ section.
- Sets a strict `Referrer-Policy <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy>`_
of ``strict-origin-when-cross-origin`` that governs which referrer information should be included with
requests made.
- Disables ``browsing-topics`` by default in the `Permissions-Policy <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Feature-Policy>`_
like `Drupal <https://www.drupal.org/project/drupal/issues/3209628>`_ to enhance privacy protection.
In addition to Talisman, you **should always use a cross-site request
forgery (CSRF) library**. It's highly recommended to use
`Flask-SeaSurf <https://flask-seasurf.readthedocs.org/en/latest/>`_,
which is based on Django's excellent library.
Installation & Basic Usage
--------------------------
Install via `pip <https://pypi.python.org/pypi/pip>`_:
::
pip install flask-talisman
After installing, wrap your Flask app with a ``Talisman``:
.. code:: python
from flask import Flask
from flask_talisman import Talisman
app = Flask(__name__)
Talisman(app)
There is also a full `Example App <https://github.com/wntrblm/flask-talisman/blob/master/example_app>`_.
Options
-------
- ``force_https``, default ``True``, forces all non-debug connects to
``https`` (`about HTTPS <https://developer.mozilla.org/en-US/docs/Glossary/https>`_).
- ``force_https_permanent``, default ``False``, uses ``301`` instead of
``302`` for ``https`` redirects.
- ``frame_options``, default ``SAMEORIGIN``, can be ``SAMEORIGIN``,
``DENY``, or ``ALLOWFROM`` (`about Frame Options <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Frame-Options>`_).
- ``frame_options_allow_from``, default ``None``, a string indicating
the domains that are allowed to embed the site via iframe.
- ``strict_transport_security``, default ``True``, whether to send HSTS
headers (`about HSTS <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Strict-Transport-Security>`_).
- ``strict_transport_security_preload``, default ``False``, enables HSTS
preloading. If you register your application with
`Google's HSTS preload list <https://hstspreload.appspot.com/>`_,
Firefox and Chrome will never load your site over a non-secure
connection.
- ``strict_transport_security_max_age``, default ``ONE_YEAR_IN_SECS``,
length of time the browser will respect the HSTS header.
- ``strict_transport_security_include_subdomains``, default ``True``,
whether subdomains should also use HSTS.
- ``content_security_policy``, default ``default-src: 'self'`, 'object-src': 'none'``, see the
`Content Security Policy`_ section (`about Content Security Policy <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy>`_).
- ``content_security_policy_nonce_in``, default ``[]``. Adds a per-request nonce
value to the flask request object and also to the specified CSP header section.
I.e. ``['script-src', 'style-src']``
- ``content_security_policy_report_only``, default ``False``, whether to set
the CSP header as "report-only" (as `Content-Security-Policy-Report-Only`)
to ease deployment by disabling the policy enforcement by the browser,
requires passing a value with the ``content_security_policy_report_uri``
parameter
- ``content_security_policy_report_uri``, default ``None``, a string
indicating the report URI used for `CSP violation reports
<https://developer.mozilla.org/en-US/docs/Web/Security/CSP/Using_CSP_violation_reports>`_
- ``referrer_policy``, default ``strict-origin-when-cross-origin``, a string
that sets the Referrer Policy header to send a full URL when performing a same-origin
request, only send the origin of the document to an equally secure destination
(HTTPS->HTTPS), and send no header to a less secure destination (HTTPS->HTTP) (`about Referrer Policy <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy>`_).
- ``feature_policy``, default ``{}``, see the `Feature Policy`_ section (`about Feature Policy <https://developer.mozilla.org/en-US/docs/Web/HTTP/Feature_Policy>`_).
- ``permissions_policy``, default ``{'browsing-topics': '()'}``, see the `Permissions Policy`_ section (`about Permissions Policy <https://developer.mozilla.org/en-US/docs/Web/HTTP/Feature_Policy>`_).
- ``document_policy``, default ``{}``, see the `Document Policy`_ section (`about Document Policy <https://wicg.github.io/document-policy/>`_).
- ``session_cookie_secure``, default ``True``, set the session cookie
to ``secure``, preventing it from being sent over plain ``http`` (`about cookies (https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie)_`).
- ``session_cookie_http_only``, default ``True``, set the session
cookie to ``httponly``, preventing it from being read by JavaScript.
- ``session_cookie_samesite``, default ``Lax``, set this to ``Strict`` to prevent the cookie from being sent by the browser to the target site in all cross-site browsing context, even when following a regular link.
- ``force_file_save``, default ``False``, whether to set the
`X-Download-Options <https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/compatibility/jj542450(v=vs.85)?redirectedfrom=MSDN>`_
header to ``noopen`` to prevent IE >= 8 to from opening file downloads
directly and only save them instead.
- ``x_content_type_options``, default ``True``, Protects against MIME sniffing vulnerabilities (`about Content Type Options <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options>`_).
- ``x_xss_protection``, default ``False``, Protects against cross-site scripting (XSS) attacks (`about XSS Protection <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-XSS-Protection>`_). This option is disabled by default because no modern browser (`supports this header <https://caniuse.com/mdn-http_headers_x-xss-protection>`_) anymore.
For a full list of (security) headers, check out: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers.
Per-view options
~~~~~~~~~~~~~~~~
Sometimes you want to change the policy for a specific view. The
``force_https``, ``frame_options``, ``frame_options_allow_from``,
`content_security_policy``, ``feature_policy``, ``permissions_policy``
and ``document_policy`` options can be changed on a per-view basis.
.. code:: python
from flask import Flask
from flask_talisman import Talisman, ALLOW_FROM
app = Flask(__name__)
talisman = Talisman(app)
@app.route('/normal')
def normal():
return 'Normal'
@app.route('/embeddable')
@talisman(frame_options=ALLOW_FROM, frame_options_allow_from='*')
def embeddable():
return 'Embeddable'
Content Security Policy
-----------------------
The default content security policy is extremely strict and will
prevent loading any resources that are not in the same domain as the
application. Most web applications will need to change this policy.
If you're not ready to deploy Content Security Policy, you can set
`content_security_policy` to `False` to disable sending this header
entirely.
A slightly more permissive policy is available at
``flask_talisman.GOOGLE_CSP_POLICY``, which allows loading Google-hosted JS
libraries, fonts, and embeding media from YouTube and Maps.
You can and should create your own policy to suit your site's needs.
Here's a few examples adapted from
`MDN <https://developer.mozilla.org/en-US/docs/Web/Security/CSP/Using_Content_Security_Policy>`_:
Example 1
~~~~~~~~~
This is the default policy. A web site administrator wants all content
to come from the site's own origin (this excludes subdomains) and disallow
legacy HTML elements.
.. code:: python
csp = {
'default-src': '\'self\'',
'object-src': '\'none\'',
}
talisman = Talisman(app, content_security_policy=csp)
Example 2
~~~~~~~~~
A web site administrator wants to allow content from a trusted domain
and all its subdomains (it doesn't have to be the same domain that the
CSP is set on.)
.. code:: python
csp = {
'default-src': [
'\'self\'',
'*.trusted.com'
]
}
Example 3
~~~~~~~~~
A web site administrator wants to allow users of a web application to
include images from any origin in their own content, but to restrict
audio or video media to trusted providers, and all scripts only to a
specific server that hosts trusted code.
.. code:: python
csp = {
'default-src': '\'self\'',
'img-src': '*',
'media-src': [
'media1.com',
'media2.com',
],
'script-src': 'userscripts.example.com'
}
In this example content is only permitted from the document's origin
with the following exceptions:
- Images may loaded from anywhere (note the ``*`` wildcard).
- Media is only allowed from media1.com and media2.com (and not from
subdomains of those sites).
- Executable script is only allowed from userscripts.example.com.
Example 4
~~~~~~~~~
A web site administrator for an online banking site wants to ensure that
all its content is loaded using SSL, in order to prevent attackers from
eavesdropping on requests.
.. code:: python
csp = {
'default-src': 'https://onlinebanking.jumbobank.com'
}
The server only permits access to documents being loaded specifically
over HTTPS through the single origin onlinebanking.jumbobank.com.
Example 5
~~~~~~~~~
A web site administrator of a web mail site wants to allow HTML in
email, as well as images loaded from anywhere, but not JavaScript or
other potentially dangerous content.
.. code:: python
csp = {
'default-src': [
'\'self\'',
'*.mailsite.com',
],
'img-src': '*'
}
Note that this example doesn't specify a ``script-src``; with the
example CSP, this site uses the setting specified by the ``default-src``
directive, which means that scripts can be loaded only from the
originating server.
Example 6
~~~~~~~~~
A web site administrator wants to allow embedded scripts (which might
be generated dynamicially).
.. code:: python
csp = {
'default-src': '\'self\'',
'script-src': '\'self\'',
}
talisman = Talisman(
app,
content_security_policy=csp,
content_security_policy_nonce_in=['script-src']
)
The nonce needs to be added to the script tag in the template:
.. code:: html
<script nonce="{{ csp_nonce() }}">
//...
</script>
Note that the CSP directive (`script-src` in the example) to which the `nonce-...`
source should be added needs to be defined explicitly.
Example 7
~~~~~~~~~
A web site adminstrator wants to override the CSP directives via an
environment variable which doesn't support specifying the policy as
a Python dictionary, e.g.:
.. code:: bash
export CSP_DIRECTIVES="default-src 'self'; image-src *"
python app.py
Then in the app code you can read the CSP directives from the environment:
.. code:: python
import os
from flask_talisman import Talisman, DEFAULT_CSP_POLICY
talisman = Talisman(
app,
content_security_policy=os.environ.get("CSP_DIRECTIVES", DEFAULT_CSP_POLICY),
)
As you can see above the policy can be defined simply just like the official
specification requires the HTTP header to be set: As a semicolon separated
list of individual CSP directives.
Feature Policy
--------------
**Note:** Feature Policy has largely been `renamed Permissions Policy <https://github.com/w3c/webappsec-feature-policy/issues/359>`_
in the latest draft and some features are likely to move to Document Policy.
At this writing, most browsers support the ``Feature-Policy`` HTTP Header name.
See the `Permissions Policy`_ and `Document Policy`_ sections below should you wish
to set these.
Also note that the Feature Policy specification did not progress beyond the `draft https://wicg.github.io/feature-policy/`
stage before being renamed, but is `supported in some form in most browsers
<https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Feature-Policy#Browser_compatibility>`_.
The default feature policy is empty, as this is the default expected behaviour.
Geolocation Example
~~~~~~~~~~~~~~~~~~~
Disable access to Geolocation interface.
.. code:: python
feature_policy = {
'geolocation': '\'none\''
}
talisman = Talisman(app, feature_policy=feature_policy)
Permissions Policy
------------------
Feature Policy has been split into Permissions Policy and Document Policy but
at this writing `browser support of Permissions Policy is very limited <https://caniuse.com/permissions-policy>`_,
and it is recommended to still set the ``Feature-Policy`` HTTP Header.
Permission Policy support is included in Talisman for when this becomes more
widely supported.
Note that the `Permission Policy is still an Working Draft <https://www.w3.org/TR/permissions-policy/>`_.
When the same feature or permission is set in both Feature Policy and Permission Policy,
the Permission Policy setting will take precedence in browsers that support both.
It should be noted that the syntax differs between Feature Policy and Permission Policy
as can be seen from the ``geolocation`` examples provided.
The default Permissions Policy is ``browsing-topics=()``, which opts sites out of
`Federated Learning of Cohorts <https://wicg.github.io/floc/>`_ an interest-based advertising initiative
called Topics API.
Permission Policy can be set either using a dictionary, or using a string.
Geolocation and Microphone Example
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Disable access to Geolocation interface and Microphone using dictionary syntax
.. code:: python
permissions_policy = {
'geolocation': '()',
'microphone': '()'
}
talisman = Talisman(app, permissions_policy=permissions_policy)
Disable access to Geolocation interface and Microphone using string syntax
.. code:: python
permissions_policy = 'geolocation=(), microphone=()'
talisman = Talisman(app, permissions_policy=permissions_policy)
Document Policy
---------------
Feature Policy has been split into Permissions Policy and Document Policy but
at this writing `browser support of Document Policy is very limited <https://caniuse.com/document-policy>`_,
and it is recommended to still set the ``Feature-Policy`` HTTP Header.
Document Policy support is included in Talisman for when this becomes more
widely supported.
Note that the `Document Policy is still an Unofficial Draft <https://wicg.github.io/document-policy/>`_.
The default Document Policy is empty, as this is the default expected behaviour.
Document Policy can be set either using a dictionary, or using a string.
Oversized-Images Example
~~~~~~~~~~~~~~~~~~~~~~~~
Forbid oversized-images using dictionary syntax:
.. code:: python
document_policy = {
'oversized-images': '?0'
}
talisman = Talisman(app, document_policy=document_policy)
Forbid oversized-images using string syntax:
.. code:: python
document_policy = 'oversized-images=?0'
talisman = Talisman(app, document_policy=document_policy)
Disclaimer
----------
This code originated at Google, but is not an official Google product,
experimental or otherwise. It was forked on June 6th, 2021 from the
unmaintained GoogleCloudPlatform/flask-talisman.
There is no silver bullet for web application security. Talisman can
help, but security is more than just setting a few headers. Any
public-facing web application should have a comprehensive approach to
security.
Contributing changes
--------------------
- See `CONTRIBUTING.md`_
Licensing
---------
- Apache 2.0 - See `LICENSE`_
.. _LICENSE: https://github.com/wntrblm/flask-talisman/blob/master/LICENSE
.. _CONTRIBUTING.md: https://github.com/wntrblm/flask-talisman/blob/master/CONTRIBUTING.md
.. |PyPI Version| image:: https://img.shields.io/pypi/v/flask-talisman.svg
:target: https://pypi.python.org/pypi/flask-talisman

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Wheel-Version: 1.0
Generator: bdist_wheel (0.37.1)
Root-Is-Purelib: true
Tag: py2-none-any
Tag: py3-none-any

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# Copyright 2015 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from .talisman import (
ALLOW_FROM, DEFAULT_CSP_POLICY, DEFAULT_DOCUMENT_POLICY,
DEFAULT_FEATURE_POLICY, DEFAULT_PERMISSIONS_POLICY, DENY,
GOOGLE_CSP_POLICY, NONCE_LENGTH, SAMEORIGIN, Talisman)
__all__ = (
'ALLOW_FROM',
'DEFAULT_CSP_POLICY',
'DEFAULT_DOCUMENT_POLICY',
'DEFAULT_FEATURE_POLICY',
'DEFAULT_PERMISSIONS_POLICY',
'DENY',
'GOOGLE_CSP_POLICY',
'NONCE_LENGTH',
'SAMEORIGIN',
'Talisman',
)

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# Copyright 2015 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from collections import OrderedDict
import flask
DENY = 'DENY'
SAMEORIGIN = 'SAMEORIGIN'
ALLOW_FROM = 'ALLOW-FROM'
ONE_YEAR_IN_SECS = 31556926
DEFAULT_REFERRER_POLICY = 'strict-origin-when-cross-origin'
DEFAULT_CSP_POLICY = {
'default-src': '\'self\'',
'object-src': '\'none\'',
}
DEFAULT_SESSION_COOKIE_SAMESITE = "Lax"
GOOGLE_CSP_POLICY = {
# Fonts from fonts.google.com
'font-src': '\'self\' themes.googleusercontent.com *.gstatic.com',
# <iframe> based embedding for Maps and Youtube.
'frame-src': '\'self\' www.google.com www.youtube.com',
# Assorted Google-hosted Libraries/APIs.
'script-src': '\'self\' ajax.googleapis.com *.googleanalytics.com '
'*.google-analytics.com',
# Used by generated code from http://www.google.com/fonts
'style-src': '\'self\' ajax.googleapis.com fonts.googleapis.com '
'*.gstatic.com',
'object-src': '\'none\'',
'default-src': '\'self\' *.gstatic.com',
}
DEFAULT_PERMISSIONS_POLICY = {
# Disable Topics API
'browsing-topics': '()'
}
DEFAULT_DOCUMENT_POLICY = {
}
DEFAULT_FEATURE_POLICY = {
}
NONCE_LENGTH = 32
class Talisman(object):
"""
Talisman is a Flask extension for HTTP security headers.
"""
def __init__(self, app=None, **kwargs):
if app is not None:
self.init_app(app, **kwargs)
def init_app(
self,
app,
feature_policy=DEFAULT_FEATURE_POLICY,
permissions_policy=DEFAULT_PERMISSIONS_POLICY,
document_policy=DEFAULT_DOCUMENT_POLICY,
force_https=True,
force_https_permanent=False,
force_file_save=False,
frame_options=SAMEORIGIN,
frame_options_allow_from=None,
strict_transport_security=True,
strict_transport_security_preload=False,
strict_transport_security_max_age=ONE_YEAR_IN_SECS,
strict_transport_security_include_subdomains=True,
content_security_policy=DEFAULT_CSP_POLICY,
content_security_policy_report_uri=None,
content_security_policy_report_only=False,
content_security_policy_nonce_in=None,
referrer_policy=DEFAULT_REFERRER_POLICY,
session_cookie_secure=True,
session_cookie_http_only=True,
session_cookie_samesite=DEFAULT_SESSION_COOKIE_SAMESITE,
x_content_type_options=True,
x_xss_protection=False):
"""
Initialization.
Args:
app: A Flask application.
feature_policy: A string or dictionary describing the
feature policy for the response.
permissions_policy: A string or dictionary describing the
permissions policy for the response.
document_policy: A string or dictionary describing the
document policy for the response.
force_https: Redirects non-http requests to https, disabled in
debug mode.
force_https_permanent: Uses 301 instead of 302 redirects.
frame_options: Sets the X-Frame-Options header, defaults to
SAMEORIGIN.
frame_options_allow_from: Used when frame_options is set to
ALLOW_FROM and is a string of domains to allow frame embedding.
strict_transport_security: Sets HSTS headers.
strict_transport_security_preload: Enables HSTS preload. See
https://hstspreload.org.
strict_transport_security_max_age: How long HSTS headers are
honored by the browser.
strict_transport_security_include_subdomains: Whether to include
all subdomains when setting HSTS.
content_security_policy: A string or dictionary describing the
content security policy for the response.
content_security_policy_report_uri: A string indicating the report
URI used for CSP violation reports
content_security_policy_report_only: Whether to set the CSP header
as "report-only", which disables the enforcement by the browser
and requires a "report-uri" parameter with a backend to receive
the POST data
content_security_policy_nonce_in: A list of csp sections to include
a per-request nonce value in
referrer_policy: A string describing the referrer policy for the
response.
session_cookie_secure: Forces the session cookie to only be sent
over https. Disabled in debug mode.
session_cookie_http_only: Prevents JavaScript from reading the
session cookie.
session_cookie_samesite: Sets samesite parameter on session cookie
force_file_save: Prevents the user from opening a file download
directly on >= IE 8
x_content_type_options: Prevents MIME type sniffing
x_xss_protection: Prevents the page from loading when the browser
detects reflected cross-site scripting attacks
See README.rst for a detailed description of each option.
"""
if isinstance(feature_policy, dict):
self.feature_policy = OrderedDict(feature_policy)
else:
self.feature_policy = feature_policy
if isinstance(permissions_policy, dict):
self.permissions_policy = OrderedDict(permissions_policy)
else:
self.permissions_policy = permissions_policy
if isinstance(document_policy, dict):
self.document_policy = OrderedDict(document_policy)
else:
self.document_policy = document_policy
self.force_https = force_https
self.force_https_permanent = force_https_permanent
self.frame_options = frame_options
self.frame_options_allow_from = frame_options_allow_from
self.strict_transport_security = strict_transport_security
self.strict_transport_security_preload = \
strict_transport_security_preload
self.strict_transport_security_max_age = \
strict_transport_security_max_age
self.strict_transport_security_include_subdomains = \
strict_transport_security_include_subdomains
if isinstance(content_security_policy, dict):
self.content_security_policy = OrderedDict(content_security_policy)
else:
self.content_security_policy = content_security_policy
self.content_security_policy_report_uri = \
content_security_policy_report_uri
self.content_security_policy_report_only = \
content_security_policy_report_only
if self.content_security_policy_report_only and \
self.content_security_policy_report_uri is None:
raise ValueError(
'Setting content_security_policy_report_only to True also '
'requires a URI to be specified in '
'content_security_policy_report_uri')
self.content_security_policy_nonce_in = (
content_security_policy_nonce_in or []
)
app.jinja_env.globals['csp_nonce'] = self._get_nonce
self.referrer_policy = referrer_policy
self.session_cookie_secure = session_cookie_secure
app.config['SESSION_COOKIE_SAMESITE'] = session_cookie_samesite
if session_cookie_http_only:
app.config['SESSION_COOKIE_HTTPONLY'] = True
self.force_file_save = force_file_save
self.x_content_type_options = x_content_type_options
self.x_xss_protection = x_xss_protection
self.app = app
app.before_request(self._force_https)
app.before_request(self._make_nonce)
app.after_request(self._set_response_headers)
def _get_local_options(self):
view_function = flask.current_app.view_functions.get(
flask.request.endpoint)
view_options = getattr(
view_function, 'talisman_view_options', {})
view_options.setdefault('force_https', self.force_https)
view_options.setdefault('frame_options', self.frame_options)
view_options.setdefault(
'frame_options_allow_from', self.frame_options_allow_from)
view_options.setdefault(
'content_security_policy', self.content_security_policy)
view_options.setdefault(
'content_security_policy_nonce_in',
self.content_security_policy_nonce_in)
view_options.setdefault(
'permissions_policy', self.permissions_policy)
view_options.setdefault(
'document_policy', self.document_policy)
view_options.setdefault(
'feature_policy', self.feature_policy
)
return view_options
def _force_https(self):
"""Redirect any non-https requests to https.
Based largely on flask-sslify.
"""
if self.session_cookie_secure:
if not self.app.debug:
self.app.config['SESSION_COOKIE_SECURE'] = True
criteria = [
self.app.debug,
flask.request.is_secure,
flask.request.headers.get('X-Forwarded-Proto', 'http') == 'https',
]
local_options = self._get_local_options()
if local_options['force_https'] and not any(criteria):
if flask.request.url.startswith('http://'):
url = flask.request.url.replace('http://', 'https://', 1)
code = 302
if self.force_https_permanent:
code = 301
r = flask.redirect(url, code=code)
return r
def _set_response_headers(self, response):
"""Applies all configured headers to the given response."""
options = self._get_local_options()
self._set_feature_policy_headers(response.headers, options)
self._set_permissions_policy_headers(response.headers, options)
self._set_document_policy_headers(response.headers, options)
self._set_frame_options_headers(response.headers, options)
self._set_content_security_policy_headers(response.headers, options)
self._set_hsts_headers(response.headers)
self._set_referrer_policy_headers(response.headers)
return response
def _make_nonce(self):
local_options = self._get_local_options()
if (
local_options['content_security_policy'] and
local_options['content_security_policy_nonce_in'] and
not getattr(flask.request, 'csp_nonce', None)):
flask.request.csp_nonce = get_random_string(NONCE_LENGTH)
def _get_nonce(self):
return getattr(flask.request, 'csp_nonce', '')
def _parse_structured_header_policy(self, policy):
if isinstance(policy, str):
return policy
policies = []
for section, content in policy.items():
policy_part = '{}={}'.format(section, content)
policies.append(policy_part)
policy = ', '.join(policies)
return policy
def _parse_policy(self, policy):
local_options = self._get_local_options()
if isinstance(policy, str):
# parse the string into a policy dict
policy_string = policy
policy = OrderedDict()
for policy_part in policy_string.split(';'):
policy_parts = policy_part.strip().split(' ')
policy[policy_parts[0]] = " ".join(policy_parts[1:])
policies = []
for section, content in policy.items():
if not isinstance(content, str):
content = ' '.join(content)
policy_part = '{} {}'.format(section, content)
if (
hasattr(flask.request, 'csp_nonce') and
section in local_options['content_security_policy_nonce_in']):
policy_part += " 'nonce-{}'".format(flask.request.csp_nonce)
policies.append(policy_part)
policy = '; '.join(policies)
return policy
def _set_feature_policy_headers(self, headers, options):
if not options['feature_policy']:
return
policy = options['feature_policy']
policy = self._parse_policy(policy)
headers['Feature-Policy'] = policy
def _set_permissions_policy_headers(self, headers, options):
if not options['permissions_policy']:
return
policy = options['permissions_policy']
policy = self._parse_structured_header_policy(policy)
headers['Permissions-Policy'] = policy
def _set_document_policy_headers(self, headers, options):
if not options['document_policy']:
return
policy = options['document_policy']
policy = self._parse_structured_header_policy(policy)
headers['Document-Policy'] = policy
def _set_frame_options_headers(self, headers, options):
if not options['frame_options']:
return
headers['X-Frame-Options'] = options['frame_options']
if options['frame_options'] == ALLOW_FROM:
headers['X-Frame-Options'] += " {}".format(
options['frame_options_allow_from'])
def _set_content_security_policy_headers(self, headers, options):
if self.x_xss_protection:
headers['X-XSS-Protection'] = '1; mode=block'
if self.x_content_type_options:
headers['X-Content-Type-Options'] = 'nosniff'
if self.force_file_save:
headers['X-Download-Options'] = 'noopen'
if not options['content_security_policy']:
return
policy = options['content_security_policy']
policy = self._parse_policy(policy)
if self.content_security_policy_report_uri and \
'report-uri' not in policy:
policy += '; report-uri ' + self.content_security_policy_report_uri
csp_header = 'Content-Security-Policy'
if self.content_security_policy_report_only:
csp_header += '-Report-Only'
headers[csp_header] = policy
def _set_hsts_headers(self, headers):
criteria = [
flask.request.is_secure,
flask.request.headers.get('X-Forwarded-Proto', 'http') == 'https',
]
if not self.strict_transport_security or not any(criteria):
return
value = 'max-age={}'.format(self.strict_transport_security_max_age)
if self.strict_transport_security_include_subdomains:
value += '; includeSubDomains'
if self.strict_transport_security_preload:
value += '; preload'
headers['Strict-Transport-Security'] = value
def _set_referrer_policy_headers(self, headers):
headers['Referrer-Policy'] = self.referrer_policy
def __call__(self, **kwargs):
"""Use talisman as a decorator to configure options for a particular
view.
Only force_https, frame_options, frame_options_allow_from,
content_security_policy, content_security_policy_nonce_in
and feature_policy can be set on a per-view basis.
Example:
app = Flask(__name__)
talisman = Talisman(app)
@app.route('/normal')
def normal():
return 'Normal'
@app.route('/embeddable')
@talisman(frame_options=ALLOW_FROM, frame_options_allow_from='*')
def embeddable():
return 'Embeddable'
"""
def decorator(f):
setattr(f, 'talisman_view_options', kwargs)
return f
return decorator
try:
import secrets
def get_random_string(length): # pragma: no cover
# Note token_urlsafe returns a 'length'-byte string which is then
# base64 encoded so is longer than length, so only return last
# 'length' characters.
return secrets.token_urlsafe(length)[:length]
except ImportError: # pragma: no cover
import random
import string
rnd = random.SystemRandom()
def get_random_string(length):
allowed_chars = (
string.ascii_lowercase +
string.ascii_uppercase +
string.digits)
return ''.join(
rnd.choice(allowed_chars)
for _ in range(length))

344
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# Copyright 2015 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import absolute_import
import unittest
import flask
from flask_talisman import ALLOW_FROM, DENY, NONCE_LENGTH, Talisman
HTTPS_ENVIRON = {'wsgi.url_scheme': 'https'}
def hello_world():
return 'Hello, world'
def with_nonce():
return flask.render_template_string(
'<script nonce="{{csp_nonce()}}"></script>'
)
class TestTalismanExtension(unittest.TestCase):
def setUp(self):
self.app = flask.Flask(__name__)
self.talisman = Talisman(self.app)
self.client = self.app.test_client()
self.app.route('/')(hello_world)
self.app.route('/with_nonce')(with_nonce)
def testDefaults(self):
# HTTPS request.
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
headers = {
'X-Frame-Options': 'SAMEORIGIN',
'Strict-Transport-Security':
'max-age=31556926; includeSubDomains',
'X-Content-Type-Options': 'nosniff',
'Referrer-Policy': 'strict-origin-when-cross-origin'
}
for key, value in headers.items():
self.assertEqual(response.headers.get(key), value)
csp = response.headers.get('Content-Security-Policy')
self.assertIn('default-src \'self\'', csp)
self.assertIn('object-src \'none\'', csp)
def testForceSslOptionOptions(self):
# HTTP request from Proxy
response = self.client.get('/', headers={
'X-Forwarded-Proto': 'https'
})
self.assertEqual(response.status_code, 200)
# HTTP Request, should be upgraded to https
response = self.client.get('/')
self.assertEqual(response.status_code, 302)
self.assertTrue(response.headers['Location'].startswith('https://'))
# Permanent redirects
self.talisman.force_https_permanent = True
response = self.client.get('/')
self.assertEqual(response.status_code, 301)
# Disable forced ssl, should allow the request.
self.talisman.force_https = False
response = self.client.get('/')
self.assertEqual(response.status_code, 200)
def testForceXSSProtectionOptions(self):
self.talisman.x_xss_protection = True
# HTTP request from Proxy
response = self.client.get('/')
self.assertIn('X-XSS-Protection', response.headers)
self.assertEqual(response.headers['X-XSS-Protection'], '1; mode=block')
def testHstsOptions(self):
self.talisman.force_ssl = False
# No HSTS headers for non-ssl requests
response = self.client.get('/')
self.assertNotIn('Strict-Transport-Security', response.headers)
# Secure request with HSTS off
self.talisman.strict_transport_security = False
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertNotIn('Strict-Transport-Security', response.headers)
# HSTS back on
self.talisman.strict_transport_security = True
# HTTPS request through proxy
response = self.client.get('/', headers={
'X-Forwarded-Proto': 'https'
})
self.assertIn('Strict-Transport-Security', response.headers)
# No subdomains
self.talisman.strict_transport_security_include_subdomains = False
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertNotIn(
'includeSubDomains', response.headers['Strict-Transport-Security'])
# Preload
self.talisman.strict_transport_security_preload = True
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertIn('preload', response.headers['Strict-Transport-Security'])
def testFrameOptions(self):
self.talisman.frame_options = DENY
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertEqual(response.headers['X-Frame-Options'], 'DENY')
self.talisman.frame_options = ALLOW_FROM
self.talisman.frame_options_allow_from = 'example.com'
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertEqual(
response.headers['X-Frame-Options'], 'ALLOW-FROM example.com')
self.talisman.frame_options = None
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertNotIn('X-Frame-Options', response.headers)
def testContentSecurityPolicyOptions(self):
self.talisman.content_security_policy['image-src'] = '*'
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
csp = response.headers['Content-Security-Policy']
self.assertIn("default-src 'self';", csp)
self.assertIn("object-src \'none\';", csp)
self.assertIn("image-src *", csp)
self.talisman.content_security_policy['image-src'] = [
'\'self\'',
'example.com'
]
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
csp = response.headers['Content-Security-Policy']
self.assertIn('default-src \'self\'', csp)
self.assertIn('image-src \'self\' example.com', csp)
# string policy
self.talisman.content_security_policy = 'default-src \'foo\' spam.eggs'
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertEqual(response.headers['Content-Security-Policy'],
'default-src \'foo\' spam.eggs')
# no policy
self.talisman.content_security_policy = False
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertNotIn('Content-Security-Policy', response.headers)
# string policy at initialization
app = flask.Flask(__name__)
Talisman(app, content_security_policy='default-src \'foo\' spam.eggs')
response = app.test_client().get('/', environ_overrides=HTTPS_ENVIRON)
self.assertIn(
'default-src \'foo\' spam.eggs',
response.headers['Content-Security-Policy']
)
# x-content-type-options disabled
app = flask.Flask(__name__)
Talisman(app, x_content_type_options=False)
response = app.test_client().get('/', environ_overrides=HTTPS_ENVIRON)
self.assertNotIn('X-Content-Type-Options', response.headers)
# x-xss-protection disabled
app = flask.Flask(__name__)
Talisman(app, x_xss_protection=False)
response = app.test_client().get('/', environ_overrides=HTTPS_ENVIRON)
self.assertNotIn('X-XSS-Protection', response.headers)
def testContentSecurityPolicyOptionsReport(self):
# report-only policy
self.talisman.content_security_policy_report_only = True
self.talisman.content_security_policy_report_uri = \
'https://example.com'
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertIn('Content-Security-Policy-Report-Only', response.headers)
self.assertIn(
'report-uri',
response.headers['Content-Security-Policy-Report-Only']
)
self.assertNotIn('Content-Security-Policy', response.headers)
override_report_uri = 'https://report-uri.io/'
self.talisman.content_security_policy = {
'report-uri': override_report_uri,
}
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertIn(
'Content-Security-Policy-Report-Only', response.headers)
self.assertIn(
override_report_uri,
response.headers['Content-Security-Policy-Report-Only']
)
# exception on missing report-uri when report-only
self.assertRaises(ValueError, Talisman, self.app,
content_security_policy_report_only=True)
def testContentSecurityPolicyNonce(self):
self.talisman.content_security_policy['script-src'] = "'self'"
self.talisman.content_security_policy['style-src'] = "example.com"
self.talisman.content_security_policy_nonce_in = ['script-src']
with self.app.test_client() as client:
response = client.get('/with_nonce',
environ_overrides=HTTPS_ENVIRON)
csp = response.headers['Content-Security-Policy']
self.assertIn(
"script-src 'self' 'nonce-{}'".format(flask.request.csp_nonce),
csp
)
self.assertNotIn(
"style-src 'self'",
csp
)
self.assertNotIn(
"style-src example.com 'nonce-{}'".format(flask.request.csp_nonce),
csp
)
self.assertIn(
"style-src example.com",
csp
)
self.assertIn(
flask.request.csp_nonce,
response.data.decode("utf-8")
)
self.assertEqual(len(flask.request.csp_nonce), NONCE_LENGTH)
def testDecorator(self):
@self.app.route('/nocsp')
@self.talisman(content_security_policy=None)
def nocsp():
return 'Hello, world'
response = self.client.get('/nocsp', environ_overrides=HTTPS_ENVIRON)
self.assertNotIn('Content-Security-Policy', response.headers)
self.assertEqual(response.headers['X-Frame-Options'], 'SAMEORIGIN')
def testDecoratorForceHttps(self):
@self.app.route('/noforcehttps')
@self.talisman(force_https=False)
def noforcehttps():
return 'Hello, world'
response = self.client.get('/noforcehttps')
self.assertEqual(response.status_code, 200)
def testForceFileSave(self):
self.talisman.force_file_save = True
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
self.assertIn('X-Download-Options', response.headers)
self.assertEqual(response.headers['X-Download-Options'], 'noopen')
def testBadEndpoint(self):
response = self.client.get('/bad_endpoint')
self.assertEqual(response.status_code, 302)
response = self.client.get('/bad_endpoint',
headers={'X-Forwarded-Proto': 'https'})
self.assertEqual(response.status_code, 404)
def testFeaturePolicy(self):
self.talisman.feature_policy['geolocation'] = '\'none\''
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
feature_policy = response.headers['Feature-Policy']
self.assertIn('geolocation \'none\'', feature_policy)
self.talisman.feature_policy['fullscreen'] = '\'self\' example.com'
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
feature_policy = response.headers['Feature-Policy']
self.assertIn('fullscreen \'self\' example.com', feature_policy)
# string policy at initialization
app = flask.Flask(__name__)
Talisman(app, feature_policy='vibrate \'none\'')
response = app.test_client().get('/', environ_overrides=HTTPS_ENVIRON)
self.assertIn('vibrate \'none\'', response.headers['Feature-Policy'])
def testPermissionsPolicy(self):
self.talisman.permissions_policy['geolocation'] = '()'
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
permissions_policy = response.headers['Permissions-Policy']
self.assertIn('browsing-topics=()', permissions_policy)
self.assertIn('geolocation=()', permissions_policy)
self.talisman.permissions_policy['geolocation'] = '()'
self.talisman.permissions_policy['fullscreen'] = '(self, "https://example.com")'
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
permissions_policy = response.headers['Permissions-Policy']
self.assertIn('browsing-topics=()', permissions_policy)
self.assertIn('geolocation=(), fullscreen=(self, "https://example.com")', permissions_policy)
# no policy
self.talisman.permissions_policy = {}
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
permissions_policy = response.headers.get('Permissions-Policy')
self.assertEqual(None, permissions_policy)
# string policy at initialization
app = flask.Flask(__name__)
Talisman(app, permissions_policy='vibrate=(), geolocation=()')
response = app.test_client().get('/', environ_overrides=HTTPS_ENVIRON)
self.assertIn('vibrate=(), geolocation=()', response.headers['Permissions-Policy'])
def testDocumentPolicy(self):
self.talisman.document_policy['oversized-images'] = '?0'
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
document_policy = response.headers['Document-Policy']
self.assertIn('oversized-images=?0', document_policy)
self.talisman.document_policy['oversized-images'] = '?0'
self.talisman.document_policy['document-write'] = '?0'
response = self.client.get('/', environ_overrides=HTTPS_ENVIRON)
document_policy = response.headers['Document-Policy']
self.assertIn('oversized-images=?0, document-write=?0', document_policy)
# string policy at initialization
app = flask.Flask(__name__)
Talisman(app, document_policy='oversized-images=?0, document-write=?0')
response = app.test_client().get('/', environ_overrides=HTTPS_ENVIRON)
self.assertIn('oversized-images=?0, document-write=?0', response.headers['Document-Policy'])

1
venv/lib/python3.11/site-packages/mfrc522-0.0.7.dist-info/INSTALLER Normal file
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pip

674
venv/lib/python3.11/site-packages/mfrc522-0.0.7.dist-info/LICENSE Normal file
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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 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 General Public License is a free, copyleft license for
software and other kinds of works.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
the GNU General Public License is 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. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
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.
To protect your rights, we need to prevent others from denying you
these rights or asking you to surrender the rights. Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received. You must make sure that they, too, receive
or can get the source code. And you must show them these terms so they
know their rights.
Developers that use the GNU GPL protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software. For both users' and
authors' sake, the GPL requires that modified versions be marked as
changed, so that their problems will not be attributed erroneously to
authors of previous versions.
Some devices are designed to deny users access to install or run
modified versions of the software inside them, although the manufacturer
can do so. This is fundamentally incompatible with the aim of
protecting users' freedom to change the software. The systematic
pattern of such abuse occurs in the area of products for individuals to
use, which is precisely where it is most unacceptable. Therefore, we
have designed this version of the GPL to prohibit the practice for those
products. If such problems arise substantially in other domains, we
stand ready to extend this provision to those domains in future versions
of the GPL, as needed to protect the freedom of users.
Finally, every program is threatened constantly by software patents.
States should not allow patents to restrict development and use of
software on general-purpose computers, but in those that do, we wish to
avoid the special danger that patents applied to a free program could
make it effectively proprietary. To prevent this, the GPL assures that
patents cannot be used to render the program non-free.
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 General Public License.
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To "modify" a work means to copy from or adapt all or part of the work
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A "covered work" means either the unmodified Program or a work based
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To "propagate" a work means to do anything with it that, without
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Metadata-Version: 2.1
Name: mfrc522
Version: 0.0.7
Summary: A library to integrate the MFRC522 RFID readers with the Raspberry Pi
Home-page: https://github.com/pimylifeup/MFRC522-python
Author: Pi My Life Up
Author-email: support@pimylifeup.com
License: UNKNOWN
Platform: UNKNOWN
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3
Classifier: License :: OSI Approved :: GNU General Public License v3 (GPLv3)
Classifier: Operating System :: POSIX :: Linux
Classifier: Topic :: System :: Hardware
Description-Content-Type: text/markdown
Requires-Dist: RPi.GPIO
Requires-Dist: spidev
# mfrc522
A python library to read/write RFID tags via the budget MFRC522 RFID module.
This code was published in relation to a [blog post](https://pimylifeup.com/raspberry-pi-rfid-rc522/) and you can find out more about how to hook up your MFRC reader to a Raspberry Pi there.
## Installation
Until the package is on PyPi, clone this repository and run `python setup.py install` in the top level directory.
## Example Code
The following code will read a tag from the MFRC522
```python
from time import sleep
import sys
from mfrc522 import SimpleMFRC522
reader = SimpleMFRC522()
try:
while True:
print("Hold a tag near the reader")
id, text = reader.read()
print("ID: %s\nText: %s" % (id,text))
sleep(5)
except KeyboardInterrupt:
GPIO.cleanup()
raise
```

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mfrc522-0.0.7.dist-info/LICENSE,sha256=OXLcl0T2SZ8Pmy2_dmlvKuetivmyPd5m1q-Gyd-zaYY,35149
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mfrc522/__pycache__/MFRC522.cpython-311.pyc,,
mfrc522/__pycache__/SimpleMFRC522.cpython-311.pyc,,
mfrc522/__pycache__/__init__.cpython-311.pyc,,

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Wheel-Version: 1.0
Generator: bdist_wheel (0.33.1)
Root-Is-Purelib: true
Tag: py3-none-any

1
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mfrc522

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#!/usr/bin/env python
# -*- coding: utf8 -*-
#
# Copyright 2014,2018 Mario Gomez <mario.gomez@teubi.co>
#
# This file is part of MFRC522-Python
# MFRC522-Python is a simple Python implementation for
# the MFRC522 NFC Card Reader for the Raspberry Pi.
#
# MFRC522-Python is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# MFRC522-Python 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with MFRC522-Python. If not, see <http://www.gnu.org/licenses/>.
#
import RPi.GPIO as GPIO
import spidev
import signal
import time
import logging
class MFRC522:
MAX_LEN = 16
PCD_IDLE = 0x00
PCD_AUTHENT = 0x0E
PCD_RECEIVE = 0x08
PCD_TRANSMIT = 0x04
PCD_TRANSCEIVE = 0x0C
PCD_RESETPHASE = 0x0F
PCD_CALCCRC = 0x03
PICC_REQIDL = 0x26
PICC_REQALL = 0x52
PICC_ANTICOLL = 0x93
PICC_SElECTTAG = 0x93
PICC_AUTHENT1A = 0x60
PICC_AUTHENT1B = 0x61
PICC_READ = 0x30
PICC_WRITE = 0xA0
PICC_DECREMENT = 0xC0
PICC_INCREMENT = 0xC1
PICC_RESTORE = 0xC2
PICC_TRANSFER = 0xB0
PICC_HALT = 0x50
MI_OK = 0
MI_NOTAGERR = 1
MI_ERR = 2
Reserved00 = 0x00
CommandReg = 0x01
CommIEnReg = 0x02
DivlEnReg = 0x03
CommIrqReg = 0x04
DivIrqReg = 0x05
ErrorReg = 0x06
Status1Reg = 0x07
Status2Reg = 0x08
FIFODataReg = 0x09
FIFOLevelReg = 0x0A
WaterLevelReg = 0x0B
ControlReg = 0x0C
BitFramingReg = 0x0D
CollReg = 0x0E
Reserved01 = 0x0F
Reserved10 = 0x10
ModeReg = 0x11
TxModeReg = 0x12
RxModeReg = 0x13
TxControlReg = 0x14
TxAutoReg = 0x15
TxSelReg = 0x16
RxSelReg = 0x17
RxThresholdReg = 0x18
DemodReg = 0x19
Reserved11 = 0x1A
Reserved12 = 0x1B
MifareReg = 0x1C
Reserved13 = 0x1D
Reserved14 = 0x1E
SerialSpeedReg = 0x1F
Reserved20 = 0x20
CRCResultRegM = 0x21
CRCResultRegL = 0x22
Reserved21 = 0x23
ModWidthReg = 0x24
Reserved22 = 0x25
RFCfgReg = 0x26
GsNReg = 0x27
CWGsPReg = 0x28
ModGsPReg = 0x29
TModeReg = 0x2A
TPrescalerReg = 0x2B
TReloadRegH = 0x2C
TReloadRegL = 0x2D
TCounterValueRegH = 0x2E
TCounterValueRegL = 0x2F
Reserved30 = 0x30
TestSel1Reg = 0x31
TestSel2Reg = 0x32
TestPinEnReg = 0x33
TestPinValueReg = 0x34
TestBusReg = 0x35
AutoTestReg = 0x36
VersionReg = 0x37
AnalogTestReg = 0x38
TestDAC1Reg = 0x39
TestDAC2Reg = 0x3A
TestADCReg = 0x3B
Reserved31 = 0x3C
Reserved32 = 0x3D
Reserved33 = 0x3E
Reserved34 = 0x3F
serNum = []
def __init__(self, bus=0, device=0, spd=1000000, pin_mode=10, pin_rst=-1, debugLevel='WARNING'):
self.spi = spidev.SpiDev()
self.spi.open(bus, device)
self.spi.max_speed_hz = spd
self.logger = logging.getLogger('mfrc522Logger')
self.logger.addHandler(logging.StreamHandler())
level = logging.getLevelName(debugLevel)
self.logger.setLevel(level)
gpioMode = GPIO.getmode()
if gpioMode is None:
GPIO.setmode(pin_mode)
else:
pin_mode = gpioMode
if pin_rst == -1:
if pin_mode == 11:
pin_rst = 15
else:
pin_rst = 22
GPIO.setup(pin_rst, GPIO.OUT)
GPIO.output(pin_rst, 1)
self.MFRC522_Init()
def MFRC522_Reset(self):
self.Write_MFRC522(self.CommandReg, self.PCD_RESETPHASE)
def Write_MFRC522(self, addr, val):
val = self.spi.xfer2([(addr << 1) & 0x7E, val])
def Read_MFRC522(self, addr):
val = self.spi.xfer2([((addr << 1) & 0x7E) | 0x80, 0])
return val[1]
def Close_MFRC522(self):
self.spi.close()
GPIO.cleanup()
def SetBitMask(self, reg, mask):
tmp = self.Read_MFRC522(reg)
self.Write_MFRC522(reg, tmp | mask)
def ClearBitMask(self, reg, mask):
tmp = self.Read_MFRC522(reg)
self.Write_MFRC522(reg, tmp & (~mask))
def AntennaOn(self):
temp = self.Read_MFRC522(self.TxControlReg)
if (~(temp & 0x03)):
self.SetBitMask(self.TxControlReg, 0x03)
def AntennaOff(self):
self.ClearBitMask(self.TxControlReg, 0x03)
def MFRC522_ToCard(self, command, sendData):
backData = []
backLen = 0
status = self.MI_ERR
irqEn = 0x00
waitIRq = 0x00
lastBits = None
n = 0
if command == self.PCD_AUTHENT:
irqEn = 0x12
waitIRq = 0x10
if command == self.PCD_TRANSCEIVE:
irqEn = 0x77
waitIRq = 0x30
self.Write_MFRC522(self.CommIEnReg, irqEn | 0x80)
self.ClearBitMask(self.CommIrqReg, 0x80)
self.SetBitMask(self.FIFOLevelReg, 0x80)
self.Write_MFRC522(self.CommandReg, self.PCD_IDLE)
for i in range(len(sendData)):
self.Write_MFRC522(self.FIFODataReg, sendData[i])
self.Write_MFRC522(self.CommandReg, command)
if command == self.PCD_TRANSCEIVE:
self.SetBitMask(self.BitFramingReg, 0x80)
i = 2000
while True:
n = self.Read_MFRC522(self.CommIrqReg)
i -= 1
if ~((i != 0) and ~(n & 0x01) and ~(n & waitIRq)):
break
self.ClearBitMask(self.BitFramingReg, 0x80)
if i != 0:
if (self.Read_MFRC522(self.ErrorReg) & 0x1B) == 0x00:
status = self.MI_OK
if n & irqEn & 0x01:
status = self.MI_NOTAGERR
if command == self.PCD_TRANSCEIVE:
n = self.Read_MFRC522(self.FIFOLevelReg)
lastBits = self.Read_MFRC522(self.ControlReg) & 0x07
if lastBits != 0:
backLen = (n - 1) * 8 + lastBits
else:
backLen = n * 8
if n == 0:
n = 1
if n > self.MAX_LEN:
n = self.MAX_LEN
for i in range(n):
backData.append(self.Read_MFRC522(self.FIFODataReg))
else:
status = self.MI_ERR
return (status, backData, backLen)
def MFRC522_Request(self, reqMode):
status = None
backBits = None
TagType = []
self.Write_MFRC522(self.BitFramingReg, 0x07)
TagType.append(reqMode)
(status, backData, backBits) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, TagType)
if ((status != self.MI_OK) | (backBits != 0x10)):
status = self.MI_ERR
return (status, backBits)
def MFRC522_Anticoll(self):
backData = []
serNumCheck = 0
serNum = []
self.Write_MFRC522(self.BitFramingReg, 0x00)
serNum.append(self.PICC_ANTICOLL)
serNum.append(0x20)
(status, backData, backBits) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, serNum)
if (status == self.MI_OK):
i = 0
if len(backData) == 5:
for i in range(4):
serNumCheck = serNumCheck ^ backData[i]
if serNumCheck != backData[4]:
status = self.MI_ERR
else:
status = self.MI_ERR
return (status, backData)
def CalulateCRC(self, pIndata):
self.ClearBitMask(self.DivIrqReg, 0x04)
self.SetBitMask(self.FIFOLevelReg, 0x80)
for i in range(len(pIndata)):
self.Write_MFRC522(self.FIFODataReg, pIndata[i])
self.Write_MFRC522(self.CommandReg, self.PCD_CALCCRC)
i = 0xFF
while True:
n = self.Read_MFRC522(self.DivIrqReg)
i -= 1
if not ((i != 0) and not (n & 0x04)):
break
pOutData = []
pOutData.append(self.Read_MFRC522(self.CRCResultRegL))
pOutData.append(self.Read_MFRC522(self.CRCResultRegM))
return pOutData
def MFRC522_SelectTag(self, serNum):
backData = []
buf = []
buf.append(self.PICC_SElECTTAG)
buf.append(0x70)
for i in range(5):
buf.append(serNum[i])
pOut = self.CalulateCRC(buf)
buf.append(pOut[0])
buf.append(pOut[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, buf)
if (status == self.MI_OK) and (backLen == 0x18):
self.logger.debug("Size: " + str(backData[0]))
return backData[0]
else:
return 0
def MFRC522_Auth(self, authMode, BlockAddr, Sectorkey, serNum):
buff = []
# First byte should be the authMode (A or B)
buff.append(authMode)
# Second byte is the trailerBlock (usually 7)
buff.append(BlockAddr)
# Now we need to append the authKey which usually is 6 bytes of 0xFF
for i in range(len(Sectorkey)):
buff.append(Sectorkey[i])
# Next we append the first 4 bytes of the UID
for i in range(4):
buff.append(serNum[i])
# Now we start the authentication itself
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_AUTHENT, buff)
# Check if an error occurred
if not (status == self.MI_OK):
self.logger.error("AUTH ERROR!!")
if not (self.Read_MFRC522(self.Status2Reg) & 0x08) != 0:
self.logger.error("AUTH ERROR(status2reg & 0x08) != 0")
# Return the status
return status
def MFRC522_StopCrypto1(self):
self.ClearBitMask(self.Status2Reg, 0x08)
def MFRC522_Read(self, blockAddr):
recvData = []
recvData.append(self.PICC_READ)
recvData.append(blockAddr)
pOut = self.CalulateCRC(recvData)
recvData.append(pOut[0])
recvData.append(pOut[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, recvData)
if not (status == self.MI_OK):
self.logger.error("Error while reading!")
if len(backData) == 16:
self.logger.debug("Sector " + str(blockAddr) + " " + str(backData))
return backData
else:
return None
def MFRC522_Write(self, blockAddr, writeData):
buff = []
buff.append(self.PICC_WRITE)
buff.append(blockAddr)
crc = self.CalulateCRC(buff)
buff.append(crc[0])
buff.append(crc[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, buff)
if not (status == self.MI_OK) or not (backLen == 4) or not ((backData[0] & 0x0F) == 0x0A):
status = self.MI_ERR
self.logger.debug("%s backdata &0x0F == 0x0A %s" % (backLen, backData[0] & 0x0F))
if status == self.MI_OK:
buf = []
for i in range(16):
buf.append(writeData[i])
crc = self.CalulateCRC(buf)
buf.append(crc[0])
buf.append(crc[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, buf)
if not (status == self.MI_OK) or not (backLen == 4) or not ((backData[0] & 0x0F) == 0x0A):
self.logger.error("Error while writing")
if status == self.MI_OK:
self.logger.debug("Data written")
def MFRC522_DumpClassic1K(self, key, uid):
for i in range(64):
status = self.MFRC522_Auth(self.PICC_AUTHENT1A, i, key, uid)
# Check if authenticated
if status == self.MI_OK:
self.MFRC522_Read(i)
else:
self.logger.error("Authentication error")
def MFRC522_Init(self):
self.MFRC522_Reset()
self.Write_MFRC522(self.TModeReg, 0x8D)
self.Write_MFRC522(self.TPrescalerReg, 0x3E)
self.Write_MFRC522(self.TReloadRegL, 30)
self.Write_MFRC522(self.TReloadRegH, 0)
self.Write_MFRC522(self.TxAutoReg, 0x40)
self.Write_MFRC522(self.ModeReg, 0x3D)
self.AntennaOn()

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# Code by Simon Monk https://github.com/simonmonk/
from . import MFRC522
import RPi.GPIO as GPIO
class SimpleMFRC522:
READER = None
KEY = [0xFF,0xFF,0xFF,0xFF,0xFF,0xFF]
BLOCK_ADDRS = [8, 9, 10]
def __init__(self):
self.READER = MFRC522()
def read(self):
id, text = self.read_no_block()
while not id:
id, text = self.read_no_block()
return id, text
def read_id(self):
id = self.read_id_no_block()
while not id:
id = self.read_id_no_block()
return id
def read_id_no_block(self):
(status, TagType) = self.READER.MFRC522_Request(self.READER.PICC_REQIDL)
if status != self.READER.MI_OK:
return None
(status, uid) = self.READER.MFRC522_Anticoll()
if status != self.READER.MI_OK:
return None
return self.uid_to_num(uid)
def read_no_block(self):
(status, TagType) = self.READER.MFRC522_Request(self.READER.PICC_REQIDL)
if status != self.READER.MI_OK:
return None, None
(status, uid) = self.READER.MFRC522_Anticoll()
if status != self.READER.MI_OK:
return None, None
id = self.uid_to_num(uid)
self.READER.MFRC522_SelectTag(uid)
status = self.READER.MFRC522_Auth(self.READER.PICC_AUTHENT1A, 11, self.KEY, uid)
data = []
text_read = ''
if status == self.READER.MI_OK:
for block_num in self.BLOCK_ADDRS:
block = self.READER.MFRC522_Read(block_num)
if block:
data += block
if data:
text_read = ''.join(chr(i) for i in data)
self.READER.MFRC522_StopCrypto1()
return id, text_read
def write(self, text):
id, text_in = self.write_no_block(text)
while not id:
id, text_in = self.write_no_block(text)
return id, text_in
def write_no_block(self, text):
(status, TagType) = self.READER.MFRC522_Request(self.READER.PICC_REQIDL)
if status != self.READER.MI_OK:
return None, None
(status, uid) = self.READER.MFRC522_Anticoll()
if status != self.READER.MI_OK:
return None, None
id = self.uid_to_num(uid)
self.READER.MFRC522_SelectTag(uid)
status = self.READER.MFRC522_Auth(self.READER.PICC_AUTHENT1A, 11, self.KEY, uid)
self.READER.MFRC522_Read(11)
if status == self.READER.MI_OK:
data = bytearray()
data.extend(bytearray(text.ljust(len(self.BLOCK_ADDRS) * 16).encode('ascii')))
i = 0
for block_num in self.BLOCK_ADDRS:
self.READER.MFRC522_Write(block_num, data[(i*16):(i+1)*16])
i += 1
self.READER.MFRC522_StopCrypto1()
return id, text[0:(len(self.BLOCK_ADDRS) * 16)]
def uid_to_num(self, uid):
n = 0
for i in range(0, 5):
n = n * 256 + uid[i]
return n

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from .MFRC522 import MFRC522
from .SimpleMFRC522 import SimpleMFRC522
name = "mfrc522"

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pip

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Metadata-Version: 2.4
Name: spidev
Version: 3.8
Summary: Python bindings for Linux SPI access through spidev
Home-page: http://github.com/doceme/py-spidev
Author: Volker Thoms
Author-email: unconnected@gmx.de
Maintainer: Stephen Caudle
Maintainer-email: scaudle@doceme.com
License: MIT
Classifier: Development Status :: 5 - Production/Stable
Classifier: Operating System :: POSIX :: Linux
Classifier: License :: OSI Approved :: MIT License
Classifier: Intended Audience :: Developers
Classifier: Programming Language :: Python :: 2.6
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3
Classifier: Topic :: Software Development
Classifier: Topic :: System :: Hardware
Classifier: Topic :: System :: Hardware :: Hardware Drivers
Description-Content-Type: text/markdown
License-File: LICENSE
Dynamic: author
Dynamic: author-email
Dynamic: classifier
Dynamic: description
Dynamic: description-content-type
Dynamic: home-page
Dynamic: license
Dynamic: license-file
Dynamic: maintainer
Dynamic: maintainer-email
Dynamic: summary
Python Spidev
=============
This project contains a python module for interfacing with SPI devices from user space via the spidev linux kernel driver.
All code is MIT licensed unless explicitly stated otherwise.
Usage
-----
```python
import spidev
spi = spidev.SpiDev()
spi.open_path(spidev_devicefile_path)
to_send = [0x01, 0x02, 0x03]
spi.xfer(to_send)
```
Settings
--------
```python
import spidev
spi = spidev.SpiDev()
spi.open_path("/dev/spidev0.0")
# Settings (for example)
spi.max_speed_hz = 5000
spi.mode = 0b01
...
```
* `bits_per_word`
* `cshigh`
* `loop` - Set the "SPI_LOOP" flag to enable loopback mode
* `no_cs` - Set the "SPI_NO_CS" flag to disable use of the chip select (although the driver may still own the CS pin)
* `lsbfirst`
* `max_speed_hz`
* `mode` - SPI mode as two bit pattern of clock polarity and phase [CPOL|CPHA], min: 0b00 = 0, max: 0b11 = 3
* `threewire` - SI/SO signals shared
* `read0` - Read 0 bytes after transfer to lower CS if cshigh == True
Methods
-------
open_path(filesystem_path)
Connects to the specified SPI device special file, following symbolic links if
appropriate (see note on deterministic SPI bus numbering in the Linux kernel
below for why this can be advantageous in some configurations).
open(bus, device)
Equivalent to calling `open_path("/dev/spidev<bus>.<device>")`. n.b. **Either**
`open_path` or `open` should be used.
readbytes(n)
Read n bytes from SPI device.
writebytes(list of values)
Writes a list of values to SPI device.
writebytes2(list of values)
Similar to `writebytes` but accepts arbitrary large lists.
If list size exceeds buffer size (which is read from `/sys/module/spidev/parameters/bufsiz`),
data will be split into smaller chunks and sent in multiple operations.
Also, `writebytes2` understands [buffer protocol](https://docs.python.org/3/c-api/buffer.html)
so it can accept numpy byte arrays for example without need to convert them with `tolist()` first.
This offers much better performance where you need to transfer frames to SPI-connected displays for instance.
xfer(list of values[, speed_hz, delay_usec, bits_per_word])
Performs an SPI transaction. Chip-select should be released and reactivated between blocks.
Delay specifies the delay in usec between blocks.
xfer2(list of values[, speed_hz, delay_usec, bits_per_word])
Performs an SPI transaction. Chip-select should be held active between blocks.
xfer3(list of values[, speed_hz, delay_usec, bits_per_word])
Similar to `xfer2` but accepts arbitrary large lists.
If list size exceeds buffer size (which is read from `/sys/module/spidev/parameters/bufsiz`),
data will be split into smaller chunks and sent in multiple operations.
close()
Disconnects from the SPI device.
The Linux kernel and SPI bus numbering and the role of udev
-----------------------------------------------------------
### Summary
If your code may interact with an SPI controller which is attached to the
system via the USB or PCI buses, **or** if you are maintaining a product which
is likely to change SoCs **or upgrade kernels** during its lifetime, then you
should consider using one or more udev rules to create symlinks to the SPI
controller spidev, and then use `open_path`, to open the device file via the
symlink in your code.
Consider allowing the end-user to configure their choice of full spidev path -
for example with the use of a command line argument to your Python script, or
an entry in a configuration file which your code reads and parses.
Additional udev actions can also set the ownership and file access permissions
on the spidev device node file (to increase the security of the system). In
some instances, udev rules may also be needed to ensure that spidev device
nodes are created in the first place (by triggering the Linux `spidev` driver
to "bind" to an underlying SPI controller).
### Detailed Information
This section provides an overview of the Linux APIs which this extension uses.
**If your software might be used on systems with non-deterministic SPI bus
numbering**, then using the `open_path` method can allow those maintaining the
system to use mechanisms such as `udev` to create stable symbolic links to the
SPI device for the correct physical SPI bus.
See the example udev rule file `99-local-spi-example-udev.rules`.
This Python extension communicates with SPI devices by using the 'spidev'
[Linux kernel SPI userspace
API](https://www.kernel.org/doc/html/next/spi/spidev.html).
'spidev' in turn communicates with SPI bus controller hardware using the
kernel's internal SPI APIs and hardware device drivers.
If the system is configured to expose a particular SPI device to user space
(i.e. when an SPI device is "bound" to the spidev driver), then the spidev
driver registers this device with the kernel, and exposes its Linux kernel SPI
bus number and SPI chip select number to user space in the form of a POSIX
"character device" special file.
A user space program (usually 'udev') listens for kernel device creation
events, and creates a file system "device node" for user space software to
interact with. By convention, for spidev, the device nodes are named
/dev/spidev<bus>.<device> is (where the *bus* is the Linux kernel's internal
SPI bus number (see below) and the *device* number corresponds to the SPI
controller "chip select" output pin that is connected to the SPI *device* 'chip
select' input pin.
The Linux kernel **may assign SPI bus numbers to a system's SPI controllers in
a non-deterministic way.** In some hardware configurations, the SPI bus number
of a particular hardware peripheral is:
- Not guaranteed to remain constant between different Linux kernel versions.
- Not guaranteed to remain constant between successive boots of the same kernel
(due to race conditions during boot-time hardware enumeration, or dynamic
kernel module loading).
- Not guaranteed to match the hardware manufacturer's SPI bus numbering scheme.
In the case of SPI controllers which are themselves connected to the system via
buses that are subject to hot-plug (such as USB, Thunderbolt, or PCI), the
SPI bus number should usually be expected to be non-deterministic.
The supported Linux mechanism which allows user space software to identify the
correct hardware, it to compose "udev rules" which create stable symbolic links
to device files. For example, most Linux distributions automatically create
symbolic links to allow identification of block storage devices e.g. see the
output of `ls -alR /dev/disk`.
`99-local-spi-example-udev.rules` included with py-spidev includes example udev
rules for creating stable symlink device paths (for use with `open_path`).
e.g. the following Python code could be used to communicate with an SPI device
attached to chip-select line 0 of an individual FTDI FT232H USB to SPI adapter
which has the USB serial number "1A8FG636":
```
#!/usr/bin/env python3
import spidev
spi = spidev.SpiDev()
spi.open_path("/dev/spi/by-path/usb-sernum-1A8FG636-cs-0")
# TODO: Useful stuff here
spi.close()
```
In the more general case, the example udev file should be modified as
appropriate to your needs, renamed to something descriptive of the purpose
and/or project, and placed in `/etc/udev/rules.d/` (or `/lib/udev/rules.d/` in
the case of rules files included with operating system packages).
Changelog
---------
3.8
====
* Added open_path method to accommodate dynamic SPI bus number allocation
3.7
===
* Fixed installation deprecation warning
3.6
====
* Added read0 flag to enable reading 0 bytes after transfer to lower CS when cshigh == True
3.5
====
* Fixed memory leaks
3.4
=====
* Changed license to MIT
3.0.1
=====
* Fixed README.md and CHANGELOG.md formatting, hopefully
3.0
===
* Memset fix recommended by Dougie Lawson
* Fixes for Kernel 3.15+ from https://github.com/chrillomat/py-spidev
* Fixes for Python 3/2 compatibility.
* Added subclassing support - https://github.com/doceme/py-spidev/issues/10
2.0
===
Code sourced from http://elk.informatik.fh-augsburg.de/da/da-49/trees/pyap7k/lang/py-spi
and modified.
Pre 2.0
=======
spimodule.c originally uathored by Volker Thoms, 2009.

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Wheel-Version: 1.0
Generator: setuptools (82.0.1)
Root-Is-Purelib: false
Tag: cp311-cp311-linux_x86_64

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venv/lib/python3.11/site-packages/spidev-3.8.dist-info/licenses/LICENSE Normal file
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MIT License
Copyright (c) 2019 Stephen Caudle <stephen@caudle.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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venv/lib/python3.11/site-packages/spidev-3.8.dist-info/top_level.txt Normal file
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spidev

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