text: # 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 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 += '<OriginAccessIdentity>%s</OriginAccessIdentity>\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
          self._object_class = Object
  
      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)
              
          
  