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# Copyright (c) 2006-2009 Mitch Garnaat http://garnaat.org/
#
# 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, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing 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 MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR 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.
import uuid
from boto.cloudfront.identity import OriginAccessIdentity
from boto.cloudfront.object import Object, StreamingObject
from boto.cloudfront.signers import Signer, ActiveTrustedSigners, TrustedSigners
from boto.cloudfront.logging import LoggingInfo
from boto.s3.acl import ACL
class DistributionConfig:
def __init__(self, connection=None, origin='', enabled=False,
caller_reference='', cnames=None, comment='',
origin_access_identity=None, trusted_signers=None):
self.connection = connection
self.origin = origin
self.enabled = enabled
if caller_reference:
self.caller_reference = caller_reference
else:
self.caller_reference = str(uuid.uuid4())
self.cnames = []
if cnames:
self.cnames = cnames
self.comment = comment
self.origin_access_identity = origin_access_identity
self.trusted_signers = trusted_signers
self.logging = None
def get_oai_value(self):
if isinstance(self.origin_access_identity, OriginAccessIdentity):
return self.origin_access_identity.uri()
else:
return self.origin_access_identity
def to_xml(self):
s = '<?xml version="1.0" encoding="UTF-8"?>\n'
s += '<DistributionConfig xmlns="http://cloudfront.amazonaws.com/doc/2008-12-01/">\n'
s += ' <Origin>%s</Origin>\n' % self.origin
s += ' <CallerReference>%s</CallerReference>\n' % self.caller_reference
for cname in self.cnames:
s += ' <CNAME>%s</CNAME>\n' % cname
if self.comment:
s += ' <Comment>%s</Comment>\n' % self.comment
s += ' <Enabled>'
if self.enabled:
s += 'true'
else:
s += 'false'
s += '</Enabled>\n'
if self.origin_access_identity:
val = self.get_oai_value()
s += '<OriginAccessIdentifier>%s</OriginAccessIdentifier>\n' % val
if self.trusted_signers:
s += '<TrustedSigners>\n'
for signer in self.trusted_signers:
if signer == 'Self':
s += ' <Self></Self>\n'
else:
s += ' <AwsAccountNumber>%s</AwsAccountNumber>\n' % signer
s += '</TrustedSigners>\n'
if self.logging:
s += '<Logging>\n'
s += ' <Bucket>%s</Bucket>\n' % self.logging.bucket
s += ' <Prefix>%s</Prefix>\n' % self.logging.prefix
s += '</Logging>\n'
s += '</DistributionConfig>\n'
return s
def startElement(self, name, attrs, connection):
if name == 'TrustedSigners':
self.trusted_signers = TrustedSigners()
return self.trusted_signers
elif name == 'Logging':
self.logging = LoggingInfo()
return self.logging
else:
return None
def endElement(self, name, value, connection):
if name == 'CNAME':
self.cnames.append(value)
elif name == 'Origin':
self.origin = value
elif name == 'Comment':
self.comment = value
elif name == 'Enabled':
if value.lower() == 'true':
self.enabled = True
else:
self.enabled = False
elif name == 'CallerReference':
self.caller_reference = value
elif name == 'OriginAccessIdentity':
self.origin_access_identity = value
else:
setattr(self, name, value)
class StreamingDistributionConfig(DistributionConfig):
def __init__(self, connection=None, origin='', enabled=False,
caller_reference='', cnames=None, comment=''):
DistributionConfig.__init__(self, connection, origin,
enabled, caller_reference,
cnames, comment)
def to_xml(self):
s = '<?xml version="1.0" encoding="UTF-8"?>\n'
s += '<StreamingDistributionConfig xmlns="http://cloudfront.amazonaws.com/doc/2009-12-01/">\n'
s += ' <Origin>%s</Origin>\n' % self.origin
s += ' <CallerReference>%s</CallerReference>\n' % self.caller_reference
for cname in self.cnames:
s += ' <CNAME>%s</CNAME>\n' % cname
if self.comment:
s += ' <Comment>%s</Comment>\n' % self.comment
s += ' <Enabled>'
if self.enabled:
s += 'true'
else:
s += 'false'
s += '</Enabled>\n'
s += '</StreamingDistributionConfig>\n'
return s
def startElement(self, name, attrs, connection):
pass
class DistributionSummary:
def __init__(self, connection=None, domain_name='', id='',
last_modified_time=None, status='', origin='',
cname='', comment='', enabled=False):
self.connection = connection
self.domain_name = domain_name
self.id = id
self.last_modified_time = last_modified_time
self.status = status
self.origin = origin
self.enabled = enabled
self.cnames = []
if cname:
self.cnames.append(cname)
self.comment = comment
self.trusted_signers = None
self.etag = None
self.streaming = False
def startElement(self, name, attrs, connection):
if name == 'TrustedSigners':
self.trusted_signers = TrustedSigners()
return self.trusted_signers
return None
def endElement(self, name, value, connection):
if name == 'Id':
self.id = value
elif name == 'Status':
self.status = value
elif name == 'LastModifiedTime':
self.last_modified_time = value
elif name == 'DomainName':
self.domain_name = value
elif name == 'Origin':
self.origin = value
elif name == 'CNAME':
self.cnames.append(value)
elif name == 'Comment':
self.comment = value
elif name == 'Enabled':
if value.lower() == 'true':
self.enabled = True
else:
self.enabled = False
elif name == 'StreamingDistributionSummary':
self.streaming = True
else:
setattr(self, name, value)
def get_distribution(self):
return self.connection.get_distribution_info(self.id)
class StreamingDistributionSummary(DistributionSummary):
def get_distribution(self):
return self.connection.get_streaming_distribution_info(self.id)
class Distribution:
def __init__(self, connection=None, config=None, domain_name='',
id='', last_modified_time=None, status=''):
self.connection = connection
self.config = config
self.domain_name = domain_name
self.id = id
self.last_modified_time = last_modified_time
self.status = status
self.active_signers = None
self.etag = None
self._bucket = None
def startElement(self, name, attrs, connection):
if name == 'DistributionConfig':
self.config = DistributionConfig()
return self.config
elif name == 'ActiveTrustedSigners':
self.active_signers = ActiveTrustedSigners()
return self.active_signers
else:
return None
def endElement(self, name, value, connection):
if name == 'Id':
self.id = value
elif name == 'LastModifiedTime':
self.last_modified_time = value
elif name == 'Status':
self.status = value
elif name == 'DomainName':
self.domain_name = value
else:
setattr(self, name, value)
def update(self, enabled=None, cnames=None, comment=None,
origin_access_identity=None,
trusted_signers=None):
"""
Update the configuration of the Distribution.
:type enabled: bool
:param enabled: Whether the Distribution is active or not.
:type cnames: list of str
:param cnames: The DNS CNAME's associated with this
Distribution. Maximum of 10 values.
:type comment: str or unicode
:param comment: The comment associated with the Distribution.
:type origin_access_identity: :class:`boto.cloudfront.identity.OriginAccessIdentity`
:param origin_access_identity: The CloudFront origin access identity
associated with the distribution. This
must be provided if you want the
distribution to serve private content.
:type trusted_signers: :class:`boto.cloudfront.signers.TrustedSigner`
:param trusted_signers: The AWS users who are authorized to sign
URL's for private content in this Distribution.
"""
new_config = DistributionConfig(self.connection, self.config.origin,
self.config.enabled, self.config.caller_reference,
self.config.cnames, self.config.comment,
self.config.origin_access_identity,
self.config.trusted_signers)
if enabled != None:
new_config.enabled = enabled
if cnames != None:
new_config.cnames = cnames
if comment != None:
new_config.comment = comment
if origin_access_identity != None:
new_config.origin_access_identity = origin_access_identity
if trusted_signers:
new_config.trusted_signers = trusted_signers
self.etag = self.connection.set_distribution_config(self.id, self.etag, new_config)
self.config = new_config
self._object_class = Object
def enable(self):
"""
Deactivate the Distribution. A convenience wrapper around
the update method.
"""
self.update(enabled=True)
def disable(self):
"""
Activate the Distribution. A convenience wrapper around
the update method.
"""
self.update(enabled=False)
def delete(self):
"""
Delete this CloudFront Distribution. The content
associated with the Distribution is not deleted from
the underlying Origin bucket in S3.
"""
self.connection.delete_distribution(self.id, self.etag)
def _get_bucket(self):
if not self._bucket:
bucket_name = self.config.origin.split('.')[0]
from boto.s3.connection import S3Connection
s3 = S3Connection(self.connection.aws_access_key_id,
self.connection.aws_secret_access_key,
proxy=self.connection.proxy,
proxy_port=self.connection.proxy_port,
proxy_user=self.connection.proxy_user,
proxy_pass=self.connection.proxy_pass)
self._bucket = s3.get_bucket(bucket_name)
self._bucket.distribution = self
self._bucket.set_key_class(self._object_class)
return self._bucket
def get_objects(self):
"""
Return a list of all content objects in this distribution.
:rtype: list of :class:`boto.cloudfront.object.Object`
:return: The content objects
"""
bucket = self._get_bucket()
objs = []
for key in bucket:
objs.append(key)
return objs
def set_permissions(self, object, replace=False):
"""
Sets the S3 ACL grants for the given object to the appropriate
value based on the type of Distribution. If the Distribution
is serving private content the ACL will be set to include the
Origin Access Identity associated with the Distribution. If
the Distribution is serving public content the content will
be set up with "public-read".
:type object: :class:`boto.cloudfront.object.Object`
:param enabled: The Object whose ACL is being set
:type replace: bool
:param replace: If False, the Origin Access Identity will be
appended to the existing ACL for the object.
If True, the ACL for the object will be
completely replaced with one that grants
READ permission to the Origin Access Identity.
"""
if self.config.origin_access_identity:
id = self.config.origin_access_identity.split('/')[-1]
oai = self.connection.get_origin_access_identity_info(id)
policy = object.get_acl()
if replace:
policy.acl = ACL()
policy.acl.add_user_grant('READ', oai.s3_user_id)
object.set_acl(policy)
else:
object.set_canned_acl('public-read')
def set_permissions_all(self, replace=False):
"""
Sets the S3 ACL grants for all objects in the Distribution
to the appropriate value based on the type of Distribution.
:type replace: bool
:param replace: If False, the Origin Access Identity will be
appended to the existing ACL for the object.
If True, the ACL for the object will be
completely replaced with one that grants
READ permission to the Origin Access Identity.
"""
bucket = self._get_bucket()
for key in bucket:
self.set_permissions(key)
def add_object(self, name, content, headers=None, replace=True):
"""
Adds a new content object to the Distribution. The content
for the object will be copied to a new Key in the S3 Bucket
and the permissions will be set appropriately for the type
of Distribution.
:type name: str or unicode
:param name: The name or key of the new object.
:type content: file-like object
:param content: A file-like object that contains the content
for the new object.
:type headers: dict
:param headers: A dictionary containing additional headers
you would like associated with the new
object in S3.
:rtype: :class:`boto.cloudfront.object.Object`
:return: The newly created object.
"""
if self.config.origin_access_identity:
policy = 'private'
else:
policy = 'public-read'
bucket = self._get_bucket()
object = bucket.new_key(name)
object.set_contents_from_file(content, headers=headers, policy=policy)
if self.config.origin_access_identity:
self.set_permissions(object, replace)
return object
class StreamingDistribution(Distribution):
def __init__(self, connection=None, config=None, domain_name='',
id='', last_modified_time=None, status=''):
Distribution.__init__(self, connection, config, domain_name,
id, last_modified_time, status)
self._object_class = StreamingObject
def startElement(self, name, attrs, connection):
if name == 'StreamingDistributionConfig':
self.config = StreamingDistributionConfig()
return self.config
else:
return None
def update(self, enabled=None, cnames=None, comment=None):
"""
Update the configuration of the Distribution.
:type enabled: bool
:param enabled: Whether the Distribution is active or not.
:type cnames: list of str
:param cnames: The DNS CNAME's associated with this
Distribution. Maximum of 10 values.
:type comment: str or unicode
:param comment: The comment associated with the Distribution.
"""
new_config = StreamingDistributionConfig(self.connection,
self.config.origin,
self.config.enabled,
self.config.caller_reference,
self.config.cnames,
self.config.comment)
if enabled != None:
new_config.enabled = enabled
if cnames != None:
new_config.cnames = cnames
if comment != None:
new_config.comment = comment
self.etag = self.connection.set_streaming_distribution_config(self.id,
self.etag,
new_config)
self.config = new_config
def delete(self):
self.connection.delete_streaming_distribution(self.id, self.etag)
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