aws-cli/awscli/paramfile.py at develop · threetreeslight/aws-cli · GitHub

History

129 lines (106 loc) · 4.24 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

#!/usr/bin/env python

# Licensed under the Apache License, Version 2.0 (the "License"). You

# may not use this file except in compliance with the License. A copy of

# the License is located at

# http://aws.amazon.com/apache2.0/

# or in the "license" file accompanying this file. This file 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.

import logging

import os

from botocore.vendored import requests

from awscli.compat import six

from awscli.compat import compat_open

logger = logging.getLogger(__name__)

# These are special cased arguments that do _not_ get the

# special param file processing. This is typically because it

# refers to an actual URI of some sort and we don't want to actually

# download the content (i.e TemplateURL in cloudformation).

PARAMFILE_DISABLED = set([

'cloudformation.create-stack.template-url',

'cloudformation.update-stack.template-url',

'cloudformation.validate-template.template-url',

'cloudformation.estimate-template-cost.template-url',

'cloudformation.create-stack.stack-policy-url',

'cloudformation.update-stack.stack-policy-url',

'cloudformation.set-stack-policy.stack-policy-url',

# We will want to change the event name to ``s3`` as opposed to

# custom in the near future along with ``s3`` to ``s3api``.

'custom.cp.website-redirect',

'custom.mv.website-redirect',

'custom.sync.website-redirect',

'machinelearning.predict.predict-endpoint',

'sqs.add-permission.queue-url',

'sqs.change-message-visibility.queue-url',

'sqs.change-message-visibility-batch.queue-url',

'sqs.delete-message.queue-url',

'sqs.delete-message-batch.queue-url',

'sqs.delete-queue.queue-url',

'sqs.get-queue-attributes.queue-url',

'sqs.list-dead-letter-source-queues.queue-url',

'sqs.receive-message.queue-url',

'sqs.remove-permission.queue-url',

'sqs.send-message.queue-url',

'sqs.send-message-batch.queue-url',

'sqs.set-queue-attributes.queue-url',

'sqs.purge-queue.queue-url',

's3.copy-object.website-redirect-location',

's3.create-multipart-upload.website-redirect-location',

's3.put-object.website-redirect-location',

# Double check that this has been renamed!

'sns.subscribe.notification-endpoint',

])

class ResourceLoadingError(Exception):

pass

def get_paramfile(path):

"""

It is possible to pass parameters to operations by referring

to files or URI's. If such a reference is detected, this

function attempts to retrieve the data from the file or URI

and returns it. If there are any errors or if the ``path``

does not appear to refer to a file or URI, a ``None`` is

returned.

"""

data = None

if isinstance(path, six.string_types):

for prefix in PrefixMap:

if path.startswith(prefix):

kwargs = KwargsMap.get(prefix, {})

data = PrefixMap[prefix](prefix, path, **kwargs)

return data

def get_file(prefix, path, mode):

file_path = path[len(prefix):]

file_path = os.path.expanduser(file_path)

file_path = os.path.expandvars(file_path)

if not os.path.isfile(file_path):

raise ResourceLoadingError("file does not exist: %s" % file_path)

try:

with compat_open(file_path, mode) as f:

return f.read()

except (OSError, IOError) as e:

raise ResourceLoadingError('Unable to load paramfile %s: %s' % (

path, e))

def get_uri(prefix, uri):

try:

r = requests.get(uri)

if r.status_code == 200:

return r.text

else:

raise ResourceLoadingError(

"received non 200 status code of %s" % (

r.status_code))

except Exception as e:

raise ResourceLoadingError('Unable to retrieve %s: %s' % (uri, e))

PrefixMap = {'file://': get_file,

'fileb://': get_file,

'http://': get_uri,

'https://': get_uri}

KwargsMap = {'file://': {'mode': 'r'},

'fileb://': {'mode': 'rb'},

'http://': {},

'https://': {}}

aws-cli/awscli/paramfile.py at develop · threetreeslight/aws-cli · GitHub

Expand file tree

Breadcrumbs

paramfile.py

Latest commit

History

Breadcrumbs

paramfile.py

File metadata and controls