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#
# Copyright (c) 2014 ThoughtWorks, Inc.
#
# Pixelated is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Pixelated 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Pixelated. If not, see <http://www.gnu.org/licenses/>.
import base64
import quopri
from cryptography.fernet import Fernet
from pixelated.adapter.mail import PixelatedMail
import re
class SoledadQuerier:
def __init__(self, soledad):
self.soledad = soledad
def get_index_masterkey(self):
index_key = self.soledad.get_from_index('by-type', 'index_key')
if len(index_key) == 0:
index_key = Fernet.generate_key()
self.soledad.create_doc(dict(type='index_key', value=index_key))
return index_key
return str(index_key[0].content['value'])
def _remove_many(self, docs):
[self.soledad.delete_doc(doc) for doc in docs]
def _remove_dup_inboxes(self, mailbox_name):
mailboxes = self.soledad.get_from_index('by-type-and-mbox', 'mbox', mailbox_name)
if len(mailboxes) == 0:
return
mailboxes_to_remove = sorted(mailboxes, key=lambda x: x.content['created'])[1:len(mailboxes)]
self._remove_many(mailboxes_to_remove)
def _remove_dup_recent(self, mailbox_name):
rct = self.soledad.get_from_index('by-type-and-mbox', 'rct', mailbox_name)
if len(rct) == 0:
return
rct_to_remove = sorted(rct, key=lambda x: len(x.content['rct']), reverse=True)[1:len(rct)]
self._remove_many(rct_to_remove)
def remove_duplicates(self):
for mailbox in ['INBOX', 'DRAFTS', 'SENT', 'TRASH']:
self._remove_dup_inboxes(mailbox)
self._remove_dup_recent(mailbox)
def mark_all_as_not_recent(self):
for mailbox in ['INBOX', 'DRAFTS', 'SENT', 'TRASH']:
rct = self.soledad.get_from_index('by-type-and-mbox', 'rct', mailbox)
if len(rct) == 0:
return
rct = rct[0]
rct.content['rct'] = []
self.soledad.put_doc(rct)
def all_mails(self):
fdocs_chash = [(fdoc, fdoc.content['chash']) for fdoc in self.soledad.get_from_index('by-type', 'flags')]
if len(fdocs_chash) == 0:
return []
return self._build_mails_from_fdocs(fdocs_chash)
def all_mails_by_mailbox(self, mailbox_name):
fdocs_chash = [(fdoc, fdoc.content['chash']) for fdoc in self.soledad.get_from_index('by-type-and-mbox', 'flags', mailbox_name)]
return self._build_mails_from_fdocs(fdocs_chash)
def _build_mails_from_fdocs(self, fdocs_chash):
if len(fdocs_chash) == 0:
return []
fdocs_hdocs = []
for fdoc, chash in fdocs_chash:
hdoc = self.soledad.get_from_index('by-type-and-contenthash', 'head', chash)
if len(hdoc) == 0:
continue
fdocs_hdocs.append((fdoc, hdoc[0]))
fdocs_hdocs_bodyphash = [(f[0], f[1], f[1].content.get('body')) for f in fdocs_hdocs]
fdocs_hdocs_bdocs_parts = []
for fdoc, hdoc, body_phash in fdocs_hdocs_bodyphash:
bdoc = self.soledad.get_from_index('by-type-and-payloadhash', 'cnt', body_phash)
if len(bdoc) == 0:
continue
parts = self._extract_parts(hdoc.content)
fdocs_hdocs_bdocs_parts.append((fdoc, hdoc, bdoc[0], parts))
return [PixelatedMail.from_soledad(*raw_mail, soledad_querier=self) for raw_mail in fdocs_hdocs_bdocs_parts]
def save_mail(self, mail):
self.soledad.put_doc(mail.fdoc)
self._update_index([mail.fdoc])
def create_mail(self, mail, mailbox_name):
mbox = [m for m in self.soledad.get_from_index('by-type', 'mbox') if m.content['mbox'] == 'INBOX'][0]
uid = mbox.content['lastuid'] + 1
new_docs = [self.soledad.create_doc(doc) for doc in mail.get_for_save(next_uid=uid, mailbox=mailbox_name)]
mbox.content['lastuid'] = uid
self.soledad.put_doc(mbox)
self._update_index(new_docs)
return self.mail(mail.ident)
def mail(self, ident):
fdoc = self.soledad.get_from_index('by-type-and-contenthash', 'flags', ident)[0]
hdoc = self.soledad.get_from_index('by-type-and-contenthash', 'head', ident)[0]
parts = self._extract_parts(hdoc.content)
bdoc = self.soledad.get_from_index('by-type-and-payloadhash', 'cnt', hdoc.content['body'])[0]
return PixelatedMail.from_soledad(fdoc, hdoc, bdoc, parts=parts, soledad_querier=self)
def attachment(self, ident, encoding):
bdoc = self.soledad.get_from_index('by-type-and-payloadhash', 'cnt', ident)[0]
return {'content': self._try_decode(bdoc.content['raw'], encoding),
'content-type': bdoc.content['content-type']}
def _try_decode(self, raw, encoding):
encoding = encoding.lower()
if encoding == 'base64':
return base64.decodestring(raw)
elif encoding == 'quoted-printable':
return quopri.decodestring(raw)
else:
return str(raw)
def mails(self, idents):
fdocs_chash = [(self.soledad.get_from_index('by-type-and-contenthash', 'flags', ident), ident) for ident in idents]
fdocs_chash = [(result[0], ident) for result, ident in fdocs_chash if result]
return self._build_mails_from_fdocs(fdocs_chash)
def _extract_parts(self, hdoc, parts=None):
if not parts:
parts = {'alternatives': [], 'attachments': []}
if hdoc['multi']:
for part_key in hdoc.get('part_map', {}).keys():
self._extract_parts(hdoc['part_map'][part_key], parts)
else:
headers_dict = {elem[0]: elem[1] for elem in hdoc.get('headers', [])}
if 'attachment' in headers_dict.get('Content-Disposition', ''):
parts['attachments'].append(self._extract_attachment(hdoc, headers_dict))
else:
parts['alternatives'].append(self._extract_alternative(hdoc, headers_dict))
return parts
def _extract_alternative(self, hdoc, headers_dict):
bdoc = self.soledad.get_from_index('by-type-and-payloadhash', 'cnt', hdoc['phash'])[0]
raw_content = bdoc.content['raw']
return {'headers': headers_dict, 'content': raw_content}
def _extract_attachment(self, hdoc, headers_dict):
content_disposition = headers_dict['Content-Disposition']
match = re.compile('.*name=\"(.*)\".*').search(content_disposition)
filename = ''
if match:
filename = match.group(1)
return {'headers': headers_dict, 'ident': hdoc['phash'], 'name': filename}
def remove_mail(self, mail):
_mail = self.mail(mail.ident)
# FIX-ME: Must go through all the part_map phash to delete all the cdocs
self.soledad.delete_doc(_mail.fdoc)
self.soledad.delete_doc(_mail.hdoc)
self.soledad.delete_doc(_mail.bdoc)
def idents_by_mailbox(self, mailbox_name):
return set(doc.content['chash'] for doc in self.soledad.get_from_index('by-type-and-mbox-and-deleted', 'flags', mailbox_name, '0'))
def _update_index(self, docs):
db = self.soledad._db
indexed_fields = db._get_indexed_fields()
if indexed_fields:
# It is expected that len(indexed_fields) is shorter than
# len(raw_doc)
getters = [(field, db._parse_index_definition(field))
for field in indexed_fields]
for doc in docs:
db._update_indexes(doc.doc_id, doc.content, getters, db._db_handle)
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