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authorJoshua Harlow <harlowja@yahoo-inc.com>2012-06-09 12:31:19 -0700
committerJoshua Harlow <harlowja@yahoo-inc.com>2012-06-09 12:31:19 -0700
commit0a598f5a66ee1ba661c729b09f6b4e83271e7f7f (patch)
treed3dde06e60685bef0a8ba2c9f61cb0fb45224767 /cloudinit/user_data.py
parent84197ecd42fecd51919c578e3f10b3c85b50bf84 (diff)
downloadvyos-cloud-init-0a598f5a66ee1ba661c729b09f6b4e83271e7f7f.tar.gz
vyos-cloud-init-0a598f5a66ee1ba661c729b09f6b4e83271e7f7f.zip
Rename these to user_data module + submodules.
Diffstat (limited to 'cloudinit/user_data.py')
-rw-r--r--cloudinit/user_data.py271
1 files changed, 0 insertions, 271 deletions
diff --git a/cloudinit/user_data.py b/cloudinit/user_data.py
deleted file mode 100644
index f35e5d38..00000000
--- a/cloudinit/user_data.py
+++ /dev/null
@@ -1,271 +0,0 @@
-# vi: ts=4 expandtab
-#
-# Copyright (C) 2009-2010 Canonical Ltd.
-# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
-#
-# Author: Scott Moser <scott.moser@canonical.com>
-# Author: Juerg Hafliger <juerg.haefliger@hp.com>
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 3, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-import hashlib
-import os
-import urllib
-
-import email
-from email.mime.multipart import MIMEMultipart
-from email.mime.text import MIMEText
-from email.mime.base import MIMEBase
-
-import yaml
-
-from cloudinit import url_helper
-from cloudinit import util
-
-
-# Different file beginnings to there content type
-INCLUSION_TYPES_MAP = {
- '#include': 'text/x-include-url',
- '#include-once': 'text/x-include-once-url',
- '#!': 'text/x-shellscript',
- '#cloud-config': 'text/cloud-config',
- '#upstart-job': 'text/upstart-job',
- '#part-handler': 'text/part-handler',
- '#cloud-boothook': 'text/cloud-boothook',
- '#cloud-config-archive': 'text/cloud-config-archive',
-}
-
-# Various special content types
-TYPE_NEEDED = ["text/plain", "text/x-not-multipart"]
-INCLUDE_TYPES = ['text/x-include-url', 'text/x-include-once-url']
-ARCHIVE_TYPES = ["text/cloud-config-archive"]
-UNDEF_TYPE = "text/plain"
-ARCHIVE_UNDEF_TYPE = "text/cloud-config"
-NOT_MULTIPART_TYPE = "text/x-not-multipart"
-OCTET_TYPE = 'application/octet-stream'
-
-# Sorted longest first
-INCLUSION_SRCH = sorted(INCLUSION_TYPES_MAP.keys(), key=(lambda e: 0 - len(e)))
-
-# Msg header used to track attachments
-ATTACHMENT_FIELD = 'Number-Attachments'
-
-# This will be used to create a filename from a url (or like) entry
-# When we want to make sure a entry isn't included more than once across sessions.
-INCLUDE_ONCE_HASHER = 'md5'
-
-# For those pieces without filenames
-PART_FN_TPL = 'part-%03d'
-
-
-class UserDataProcessor(object):
- def __init__(self, paths):
- self.paths = paths
-
- def process(self, blob):
- base_msg = convert_string(blob)
- process_msg = MIMEMultipart()
- self._process_msg(base_msg, process_msg)
- return process_msg
-
- def _process_msg(self, base_msg, append_msg):
- for part in base_msg.walk():
- # multipart/* are just containers
- if part.get_content_maintype() == 'multipart':
- continue
-
- ctype = None
- ctype_orig = part.get_content_type()
- payload = part.get_payload(decode=True)
-
- if not ctype_orig:
- ctype_orig = UNDEF_TYPE
-
- if ctype_orig in TYPE_NEEDED:
- ctype = type_from_starts_with(payload)
-
- if ctype is None:
- ctype = ctype_orig
-
- if ctype in INCLUDE_TYPES:
- self._do_include(payload, append_msg)
- continue
-
- if ctype in ARCHIVE_TYPES:
- self._explode_archive(payload, append_msg)
- continue
-
- if 'Content-Type' in base_msg:
- base_msg.replace_header('Content-Type', ctype)
- else:
- base_msg['Content-Type'] = ctype
-
- self._attach_part(append_msg, part)
-
- def _get_include_once_filename(self, entry):
- msum = hashlib.new(INCLUDE_ONCE_HASHER)
- msum.update(entry)
- entry_fn = msum.hexdigest()[0:64] # Don't get to long now
- return os.path.join(self.paths.get_ipath_cur('data'), 'urlcache', entry_fn)
-
- def _do_include(self, content, append_msg):
- # is just a list of urls, one per line
- # also support '#include <url here>'
- for line in content.splitlines():
- includeonce = False
- if line in ("#include", "#include-once"):
- continue
- if line.startswith("#include-once"):
- line = line[len("#include-once"):].lstrip()
- includeonce = True
- elif line.startswith("#include"):
- line = line[len("#include"):].lstrip()
- if line.startswith("#"):
- continue
- include_url = line.strip()
- if not include_url:
- continue
-
- includeonce_filename = self._get_include_once_filename(include_url)
- if includeonce and os.path.isfile(includeonce_filename):
- content = util.load_file(includeonce_filename)
- else:
- (content, st) = url_helper.readurl(include_url)
- if includeonce and url_helper.ok_http_code(st):
- util.write_file(includeonce_filename, content, mode=0600)
- if not url_helper.ok_http_code(st):
- content = ''
-
- new_msg = convert_string(content)
- self._process_msg(new_msg, append_msg)
-
- def _explode_archive(self, archive, append_msg):
- try:
- entries = yaml.load(archive)
- except:
- entries = []
- if not isinstance(entries, (list, set)):
- # TODO raise?
- entries = []
-
- for ent in entries:
- # ent can be one of:
- # dict { 'filename' : 'value', 'content' : 'value', 'type' : 'value' }
- # filename and type not be present
- # or
- # scalar(payload)
- if isinstance(ent, str):
- ent = {'content': ent}
- if not isinstance(ent, (dict)):
- # TODO raise?
- continue
-
- content = ent.get('content', '')
- mtype = ent.get('type')
- if not mtype:
- mtype = type_from_starts_with(content, ARCHIVE_UNDEF_TYPE)
-
- maintype, subtype = mtype.split('/', 1)
- if maintype == "text":
- msg = MIMEText(content, _subtype=subtype)
- else:
- msg = MIMEBase(maintype, subtype)
- msg.set_payload(content)
-
- if 'filename' in ent:
- msg.add_header('Content-Disposition', 'attachment', filename=ent['filename'])
-
- for header in ent.keys():
- if header in ('content', 'filename', 'type'):
- continue
- msg.add_header(header, ent['header'])
-
- self._attach_part(append_msg, msg)
-
- def _multi_part_count(self, outer_msg, new_count=None):
- """
- Return the number of attachments to this MIMEMultipart by looking
- at its 'Number-Attachments' header.
- """
- if ATTACHMENT_FIELD not in outer_msg:
- outer_msg[ATTACHMENT_FIELD] = str(0)
-
- if new_count is not None:
- outer_msg.replace_header(ATTACHMENT_FIELD, str(new_count))
-
- fetched_count = 0
- try:
- fetched_count = int(outer_msg.get(ATTACHMENT_FIELD))
- except (ValueError, TypeError):
- outer_msg.replace_header(ATTACHMENT_FIELD, str(fetched_count))
- return fetched_count
-
- def _attach_part(self, outer_msg, part):
- """
- Attach an part to an outer message. outermsg must be a MIMEMultipart.
- Modifies a header in the message to keep track of number of attachments.
- """
- cur = self._multi_part_count(outer_msg)
- if not part.get_filename():
- part.add_header('Content-Disposition', 'attachment', filename=PART_FN_TPL % (cur + 1))
- outer_msg.attach(part)
- self._multi_part_count(outer_msg, cur + 1)
-
-
-# Callback is a function that will be called with
-# (data, content_type, filename, payload)
-def walk(ud_msg, callback, data):
- partnum = 0
- for part in ud_msg.walk():
- # multipart/* are just containers
- if part.get_content_maintype() == 'multipart':
- continue
-
- ctype = part.get_content_type()
- if ctype is None:
- ctype = OCTET_TYPE
-
- filename = part.get_filename()
- if not filename:
- filename = PART_FN_TPL % partnum
-
- callback(data, ctype, filename, part.get_payload(decode=True))
- partnum = partnum + 1
-
-
-def convert_string(self, raw_data, headers=None):
- if not data:
- data = ''
- if not headers:
- headers = {}
- data = util.decomp_str(raw_data)
- if "mime-version:" in data[0:4096].lower():
- msg = email.message_from_string(data)
- for (key, val) in headers.items():
- if key in msg:
- msg.replace_header(key, val)
- else:
- msg[key] = val
- else:
- mtype = headers.get("Content-Type", NOT_MULTIPART_TYPE)
- maintype, subtype = mtype.split("/", 1)
- msg = MIMEBase(maintype, subtype, *headers)
- msg.set_payload(data)
- return msg
-
-
-def type_from_starts_with(payload, default=None):
- for text in INCLUSION_SRCH:
- if payload.startswith(text):
- return INCLUSION_TYPES_MAP[text]
- return default