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Dailymotion Cloud API client library

Project description

Introduction
============

An eggified, buildout installable verions of DailyMotion's cloudkey.py module.

Forked from https://github.com/dailymotion/cloudkey-py


.. _Python SDK: http://www.dmcloud.net/doc/api/python-sdk.html
.. _cloud-api: http://www.dmcloud.net/doc/api/
.. _media-api: http://www.dmcloud.net/doc/api/cloud-api.html#media-api
.. _Media Object: http://www.dmcloud.net/doc/api/cloud-api.html#media-api
.. _File Object: http://www.dmcloud.net/doc/api/cloud-api.html#file-api


*************
`Python SDK`_
*************

General information
===================

The Python library exposes all API methods described in the
`cloud-api`_ section.

You can download the python library on
`GitHub <http://github.com/dailymotion/cloudkey-py>`_.

A master class named ``CloudKey`` exposes all objects (eg: media-api_)
through object attributes.

The library exposes all the remote methods of "cloud-api"_ and also have
local methods for specific purpose like uploading files or getting signed
stream URLs.

Remote methods
--------------

For instance, to call the ``list`` method from the ``media`` object, the
code would be as follows::

from cloudkey import CloudKey

USER_ID = '4c1a4d3edede832bfd000002'
API_KEY = '52a32c7890338770e3ea1601214c02142d297298'

cloudkey = CloudKey(USER_ID, API_KEY, BASE_URL)
cloudkey.media.list()

For methods expecting parameters, these must be passed as named arguments::

clouckey.media.list(fields=['id'], per_page=20, page=2)

The returned values are a direct mapping of the JSON structure into python's
native types.

Local methods
-------------

`File Object`_
^^^^^^^^^^^^^^^

``upload_file(file)``

Upload a local file to Dailymotion Cloud using its path.

:param file: the path of the file
:type file: str
:returns: A dict containing the ``url`` where the uploaded file can be accessed
:rtype: dict


`Media object`_
^^^^^^^^^^^^^^^

``get_embed_url(id, seclevel=None, asnum=None, ip=None, useragent=None, expires=None)``

This method returns a signed URL to a Dailymotion Cloud player embed
(see the API reference for details).
The generated URL is perishable, and access is granted based-on the
provided security level bitmask.

:param id: the id of the new media object.
:type id: media ID
:param seclevel: the security level bitmask
(default is ``SecLevel.NONE``, see below for details).
:type seclevel: int
:param expires: the UNIX epoch expiration time
(default is ``time() + 7200`` (2 hours from now)).
:type expires: int

The following arguments may be required if the ``SecLevel.DELEGATE``
option is not specified in the seclevel parameter, depending on the other
options. This is not recommanded as it would probably lead to spurious
access denials, mainly due to GeoIP databases discrepancies.

:param asnum: the client's autonomous system number (default is ``None``).
:type asnum: str
:param ip: the client's IP adress (default is ``None``).
:type ip: str
:param useragent: the client's HTTP User-Agent header (default is ``None``).
:type useragent: str

Example::

// Create an embed URL limited only to the
// AS of the end-user and valid for 1 hour
url = cloudkey.media.get_embed_url(id=media['id'],
seclevel=SecLevel.DELEGATE | SecLevel.ASNUM,
expires=time() + 3600)

``get_stream_url(id, preset='mp4_h264_aac', seclevel=None,
asnum=None, ip=None, useragent=None, expires=None)``

This method returns a signed URL to a Dailymotion Cloud video stream
(see the API reference for details).

The generated URL is perishable, and access is granted
based on the provided security level bitmask.

:param id: the id of the new media object.
:type id: media ID
:param preset: the desired media asset preset name
(default is ``mp4_h264_aac``).
:type preset: str
:param seclevel: the security level bitmask
(default is ``SecLevel.NONE``, see below for details).
:type seclevel: int
:param expires: the UNIX epoch expiration time
(default is ``time() + 7200`` (2 hours from now)).
:type expires: int

The following arguments may be required if the ``SecLevel.DELEGATE``
option is not specified in the seclevel parameter, depending on the other
options. This is not recommanded as it would probably lead to spurious
access denials, mainly due to GeoIP databases discrepancies.

:param asnum: the client's autonomous system number (default is ``None``).
:type asnum: str
:param ip: the client's IP adress (default is ``None``).
:type ip: str
:param useragent: the client's HTTP User-Agent header (default is ``None``).
:type useragent: str


Quick Tour
==========


Security level options
-----------------------

The security level defines the mechanism used by the Dailymotion Cloud
architecture to ensure a mediastream URL access will be limited to a single
user or a group of users. The different (combinable) options are:

- ``SecLevel.NONE``: the URL access is granted to everyone.
- ``SecLevel.ASNUM``: the URL access is granted to the specified
AS number only. AS numbers stands for 'Autonomous System number'
and roughly map groups of IP to telcos and large organizations
on the Internet (each ISP has its own AS number for instance,
Dailyotion's AS number is AS41690).
- ``SecLevel.IP``: the URL access is granted to the specified IP address
only. This option may lead to spurious access denials as some
users are load-balanced behind multiple proxies when accessing
the Internet (this is mostly the case with ISPs and large
organizations).
- ``SecLevel.USERAGENT``: the URL access is granted to users
sending the specified User-Agent HTTP header only.
- ``SecLevel.DELEGATE``: the ASNUM, IP and User-Agent values
are to be gathered at the server side during the first URL
access and don't need to be specified at the client side
beforehand (this is the recommanded approach as it will
ensure a 100%-accurate ASNUM recognition).
- ``SecLevel.USEONCE``: the URL access is granted once only
(using this option will probably prevent seeking from working correctly).

For more information, please refer to the Dailymotion Cloud
streams security documentation.

Exceptions
----------

* RPCException: This is the base of all exceptions

* TransportException: When an error occured with the HTTP transport
* SerializerError: When the Request or the Response is not valid JSON
* InvalidRequest: When the Request is not wellformed
* InvalidCall: When the value of the ``call`` argument is invalid
* InvalidObject: When you access an object that doesn't exist
* InvalidMethod: When you access a method that doesn't exist
* InvalidParameter: When a method is called with a invalid or missing parameter
* AuthenticationError: When authentication information is invalid

* RateLimitExceeded: When you exceed the number of API calls on
a specific timeframe

* ApplicationException: The base class of the following exceptions
* NotFound: When action is requested on an item that doesn't exist
* Exists: When action is requested on an item that already exists
* LimitExceeded: When you reach the maximum number of allowed objects.

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