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229 lines
7.4 KiB
ReStructuredText
229 lines
7.4 KiB
ReStructuredText
PyWb 0.2.2
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=============
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.. image:: https://travis-ci.org/ikreymer/pywb.png?branch=develop
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:target: https://travis-ci.org/ikreymer/pywb
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.. image:: https://coveralls.io/repos/ikreymer/pywb/badge.png?branch=develop
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:target: https://coveralls.io/r/ikreymer/pywb?branch=develop
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pywb is a new Python implementation of the Wayback Machine software and
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tools.
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At its core, it provides a web app which 'replays' archived web data
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stored in ARC and WARC files and provides metadata about the archived
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captures.
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Latest Changes
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~~~~~~~~~~~~~~
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* Support for optional LXML html-based parser for fastest possible parsing.
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* Memento: TimeMaps in ``application/link-format`` provided via the ``/timemap/*/`` query.. eg: ``http://localhost:8080/pywb/timemap/*/http://example.com``
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* Basic support for `Memento Protocol RFC7089 <http://www.mementoweb.org/guide/rfc/>`_ Memento, TimeGate and now TimeMaps.
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* pywb now features new `domain-specific rules <https://github.com/ikreymer/pywb/blob/master/pywb/rules.yaml>`_ which are applied to resolve and render certain difficult and dynamic content, in order to make accurate web replay work. This ruleset will be under further iteration to address further challenges as the web evoles.
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Wayback Machine
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~~~~~~~~~~~~~~~
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pywb is compatible with the standard Wayback Machine url format:
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``http://<host>/<collection>/<timestamp>/<original url>``
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Some examples of this url from other wayback machines (not implemented via pywb):
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``http://web.archive.org/web/20140312103519/http://www.example.com``
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``http://www.webarchive.org.uk/wayback/archive/20100513010014/http://www.example.com/``
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A listing of archived content, often in calendar form, is available when
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a ``*`` is used instead of timestamp.
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The Wayback Machine often uses an html parser to rewrite relative and absolute
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links, as well as absolute links found in javascript, css and some xml.
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pywb provides these features as a starting point.
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Requirements
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~~~~~~~~~~~~
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pywb has tested in python 2.6, 2.7 and pypy.
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It runs best in python 2.7 currently.
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pywb tool suite provides several WSGI applications, which have been
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tested under *wsgiref* and *uWSGI*.
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For best results, the *uWSGI* container is recommended.
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Support for Python 3 is planned.
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Sample Data
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~~~~~~~~~~~
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pywb comes with a a set of sample archived content, also used by the
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test suite.
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The data can be found in ``sample_archive`` and contains ``warc`` and
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``cdx`` files.
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The sample archive contains recent captures from ``http://example.com``
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and ``http://iana.org``
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Runnable Apps
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~~~~~~~~~~~~~
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The pywb tool suite currently includes two runnable applications, installed
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as command-line scripts via setuptools
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- ``wayback`` or ``python -m pywb.apps.wayback`` -- start the full wayback on port
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8080
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- ``cdx-server`` or ``python -m pywb.apps.cdx_server`` -- start standalone cdx server on
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port 8090
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Step-By-Step Installation
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~~~~~~~~~~~~~~~~~~~~~~~~~
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To start a pywb with sample data:
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1. Clone this repo
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2. Install with ``python setup.py install``
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3. Run ``wayback`` (shorthand for ``python -m pywb.apps.wayback``) to start the pywb wayback server with reference WSGI implementation.
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OR run ``run-uwsgi.sh`` to start with uWSGI (see below for more info).
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4. Test pywb in your browser! (pywb is set to run on port 8080 by
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default).
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If everything worked, the following pages should be loading (served from
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*sample\_archive* dir):
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+------------------------+----------------------------------------+--------------------------------------------+
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| Original Url | Latest Capture | List of All Captures |
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+========================+========================================+============================================+
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| ``http://example.com`` | http://localhost:8080/pywb/example.com | http://localhost:8080/pywb/\*/example.com |
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+------------------------+----------------------------------------+--------------------------------------------+
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| ``http://iana.org`` | http://localhost:8080/pywb/iana.org | http://localhost:8080/pywb/\*/iana.org |
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+------------------------+----------------------------------------+--------------------------------------------+
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uWSGI startup script
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^^^^^^^^^^^^^^^^^^^^
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A sample uWSGI start up script, ``run-uwsgi.sh`` which assumes a default
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uWSGI installation is provided as well.
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Currently, uWSGI is not installed automatically with this distribution,
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but it is recommended for production environments.
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Please see `uWSGI
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Installation <http://uwsgi-docs.readthedocs.org/en/latest/Install.html>`_
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for more details on installing uWSGI.
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Vagrant
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~~~~~~~
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pywb comes with a Vagrantfile to help you set up a VM quickly for
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testing and deploy pywb with uWSGI.
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If you have `Vagrant <http://www.vagrantup.com/>`_ and
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`VirtualBox <https://www.virtualbox.org/>`_ installed, then you can
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start a test instance of pywb like so:
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::
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git clone https://github.com/ikreymer/pywb.git
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cd pywb
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vagrant up
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After pywb and all its dependencies are installed, the uWSGI server will
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startup
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::
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spawned uWSGI worker 1 (and the only) (pid: 123, cores: 1)
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At this point, you can open a web browser and navigate to the examples
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above for testing.
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Test Suite
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~~~~~~~~~~
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Currently pywb includes a full (and growing) suite of unit doctest and
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integration tests.
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Top level integration tests can be found in the ``tests/`` directory,
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and each subpackage also contains doctests and unit tests.
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The full set of tests can be run by executing:
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``python setup.py test``
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which will run the tests using py.test.
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The py.test coverage plugin is used to keep track of test coverage.
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Sample Setup
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~~~~~~~~~~~~
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pywb is configurable via yaml.
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The simplest `config.yaml <https://github.com/ikreymer/pywb/blob/master/config.yaml>`_ is roughly as follows:
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::
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collections:
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pywb: ./sample_archive/cdx/
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archive_paths: ./sample_archive/warcs/
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This sets up pywb with a single route for collection /pywb
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(The the latest version of `config.yaml <https://github.com/ikreymer/pywb/blob/master/config.yaml>`_ contains
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additional documentation and specifies all the optional properties, such
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as ui filenames for Jinja2/html template files.)
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For more advanced use, the pywb init path can be customized further:
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- The ``PYWB_CONFIG_FILE`` env can be used to set a different yaml
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file.
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- Custom init app (with or without yaml) can be created. See
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`wayback.py <https://github.com/ikreymer/pywb/blob/master/pywb/apps/wayback.py>`_ and
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`pywb\_init.py <https://github.com/ikreymer/pywb/blob/master/pywb/core/pywb_init.py>`_ for examples of existing
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initialization paths.
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Configuring PyWb With Archived Data
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Please see the `PyWb
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Configuration <https://github.com/ikreymer/pywb/wiki/Pywb-Configuration>`_
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for latest instructions on how to setup pywb to run with your existing
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WARC/ARC collections.
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Additional Documentation
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~~~~~~~~~~~~~~~~~~~~~~~~
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- For additional/up-to-date configuration details, consult the current
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`config.yaml <https://github.com/ikreymer/pywb/blob/master/config.yaml>`_
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- The `wiki <https://github.com/ikreymer/pywb/wiki>`_ will have
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additional technical documentation about various aspects of pywb
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Contributions
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~~~~~~~~~~~~~
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You are encouraged to fork and contribute to this project to improve web
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archiving replay
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Please take a look at list of current
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`issues <https://github.com/ikreymer/pywb/issues?state=open>`_ and feel
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free to open new ones
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