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import os
import re
import glob
import logging
import email
import tempfile
from twisted.internet.defer import inlineCallbacks
import datetime
from alot.account import SendingMailFailed
from alot import buffers
from alot import commands
from alot.commands import Command, registerCommand
from alot.commands import globals
from alot.helper import string_decode
from alot.settings import settings
MODE = 'envelope'
@registerCommand(MODE, 'attach', arguments=[
(['path'], {'help':'file(s) to attach (accepts wildcads)'})])
class AttachCommand(Command):
"""attach files to the mail"""
def __init__(self, path=None, **kwargs):
"""
:param path: files to attach (globable string)
:type path: str
"""
Command.__init__(self, **kwargs)
self.path = path
def apply(self, ui):
envelope = ui.current_buffer.envelope
if self.path: # TODO: not possible, otherwise argparse error before
files = filter(os.path.isfile,
glob.glob(os.path.expanduser(self.path)))
if not files:
ui.notify('no matches, abort')
return
else:
ui.notify('no files specified, abort')
return
logging.info("attaching: %s" % files)
for path in files:
envelope.attach(path)
ui.current_buffer.rebuild()
@registerCommand(MODE, 'refine', arguments=[
(['key'], {'help':'header to refine'})])
class RefineCommand(Command):
"""prompt to change the value of a header"""
def __init__(self, key='', **kwargs):
"""
:param key: key of the header to change
:type key: str
"""
Command.__init__(self, **kwargs)
self.key = key
def apply(self, ui):
value = ui.current_buffer.envelope.get(self.key, '')
cmdstring = 'set %s %s' % (self.key, value)
ui.apply_command(globals.PromptCommand(cmdstring))
@registerCommand(MODE, 'save')
class SaveCommand(Command):
"""save draft"""
def apply(self, ui):
envelope = ui.current_buffer.envelope
# determine account to use
sname, saddr = email.Utils.parseaddr(envelope.get('From'))
account = settings.get_account_by_address(saddr)
if account == None:
if not settings.get_accounts():
ui.notify('no accounts set.', priority='error')
return
else:
account = settings.get_accounts()[0]
if account.draft_box == None:
ui.notify('abort: account <%s> has no draft_box set.' % saddr,
priority='error')
return
mail = envelope.construct_mail()
# store mail locally
# add Date header
mail['Date'] = email.Utils.formatdate(localtime=True)
path = account.store_draft_mail(mail)
ui.notify('draft saved successfully')
# add mail to index if maildir path available
if path is not None:
logging.debug('adding new mail to index')
ui.dbman.add_message(path, account.draft_tags)
ui.apply_command(globals.FlushCommand())
ui.apply_command(commands.globals.BufferCloseCommand())
@registerCommand(MODE, 'send')
class SendCommand(Command):
"""send mail"""
@inlineCallbacks
def apply(self, ui):
currentbuffer = ui.current_buffer # needed to close later
envelope = currentbuffer.envelope
if envelope.sent_time:
warning = 'A modified version of ' * envelope.modified_since_sent
warning += 'this message has been sent at %s.' % envelope.sent_time
warning += ' Do you want to resend?'
if (yield ui.choice(warning, cancel='no',
msg_position='left')) == 'no':
return
frm = envelope.get('From')
sname, saddr = email.Utils.parseaddr(frm)
# determine account to use for sending
account = settings.get_account_by_address(saddr)
if account == None:
if not settings.get_accounts():
ui.notify('no accounts set', priority='error')
return
else:
account = settings.get_accounts()[0]
# send
clearme = ui.notify('sending..', timeout=-1)
mail = envelope.construct_mail()
def afterwards(returnvalue):
logging.debug('mail sent successfully')
ui.clear_notify([clearme])
envelope.sent_time = datetime.datetime.now()
ui.apply_command(commands.globals.BufferCloseCommand())
ui.notify('mail sent successfully')
# store mail locally
# add Date header
if 'Date' not in mail:
mail['Date'] = email.Utils.formatdate(localtime=True)
path = account.store_sent_mail(mail)
# add mail to index if maildir path available
if path is not None:
logging.debug('adding new mail to index')
ui.dbman.add_message(path, account.sent_tags)
ui.apply_command(globals.FlushCommand())
def errb(failure):
ui.clear_notify([clearme])
failure.trap(SendingMailFailed)
errmsg = 'failed to send: %s' % failure.value
ui.notify(errmsg, priority='error')
d = account.send_mail(mail)
d.addCallback(afterwards)
d.addErrback(errb)
logging.debug('added errbacks,callbacks')
@registerCommand(MODE, 'edit', arguments=[
(['--spawn'], {'action': 'store_true',
'help':'force spawning of editor in a new terminal'}),
(['--no-refocus'], {'action': 'store_false', 'dest':'refocus',
'help':'don\'t refocus envelope after editing'}),
])
class EditCommand(Command):
"""edit mail"""
def __init__(self, envelope=None, spawn=None, refocus=True, **kwargs):
"""
:param envelope: email to edit
:type envelope: :class:`~alot.message.Envelope`
:param spawn: force spawning of editor in a new terminal
:type spawn: bool
:param refocus: m
"""
self.envelope = envelope
self.openNew = (envelope != None)
self.force_spawn = spawn
self.refocus = refocus
self.edit_only_body = False
Command.__init__(self, **kwargs)
def apply(self, ui):
ebuffer = ui.current_buffer
if not self.envelope:
self.envelope = ui.current_buffer.envelope
#determine editable headers
edit_headers = set(settings.get('edit_headers_whitelist'))
if '*' in edit_headers:
edit_headers = set(self.envelope.headers.keys())
blacklist = set(settings.get('edit_headers_blacklist'))
if '*' in blacklist:
blacklist = set(self.envelope.headers.keys())
edit_headers = edit_headers - blacklist
logging.info('editable headers: %s' % edit_headers)
def openEnvelopeFromTmpfile():
# This parses the input from the tempfile.
# we do this ourselves here because we want to be able to
# just type utf-8 encoded stuff into the tempfile and let alot
# worry about encodings.
# get input
f = open(tf.name)
os.unlink(tf.name)
enc = settings.get('editor_writes_encoding')
template = string_decode(f.read(), enc)
f.close()
# call post-edit translate hook
translate = settings.get_hook('post_edit_translate')
if translate:
template = translate(template, ui=ui, dbm=ui.dbman)
self.envelope.parse_template(template, only_body=self.edit_only_body)
if self.openNew:
ui.buffer_open(buffers.EnvelopeBuffer(ui, self.envelope))
else:
ebuffer.envelope = self.envelope
ebuffer.rebuild()
# decode header
headertext = u''
for key in edit_headers:
vlist = self.envelope.get_all(key)
# remove to be edited lines from envelope
del self.envelope[key]
for value in vlist:
# newlines (with surrounding spaces) by spaces in values
value = value.strip()
value = re.sub('[ \t\r\f\v]*\n[ \t\r\f\v]*', ' ', value)
headertext += '%s: %s\n' % (key, value)
# determine editable content
bodytext = self.envelope.body
if headertext:
content = '%s\n%s' % (headertext, bodytext)
self.edit_only_body = False
else:
content = bodytext
self.edit_only_body = True
# call pre-edit translate hook
translate = settings.get_hook('pre_edit_translate')
if translate:
bodytext = translate(bodytext, ui=ui, dbm=ui.dbman)
#write stuff to tempfile
tf = tempfile.NamedTemporaryFile(delete=False, prefix='alot.')
tf.write(content.encode('utf-8'))
tf.flush()
tf.close()
cmd = globals.EditCommand(tf.name, on_success=openEnvelopeFromTmpfile,
spawn=self.force_spawn, thread=self.force_spawn,
refocus=self.refocus)
ui.apply_command(cmd)
@registerCommand(MODE, 'set', arguments=[
(['--append'], {'action': 'store_true', 'help':'keep previous values'}),
(['key'], {'help':'header to refine'}),
(['value'], {'nargs':'+', 'help':'value'})])
class SetCommand(Command):
"""set header value"""
def __init__(self, key, value, append=False, **kwargs):
"""
:param key: key of the header to change
:type key: str
:param value: new value
:type value: str
"""
self.key = key
self.value = ' '.join(value)
self.reset = not append
Command.__init__(self, **kwargs)
def apply(self, ui):
envelope = ui.current_buffer.envelope
if self.reset:
if self.key in envelope:
del(envelope[self.key])
envelope.add(self.key, self.value)
ui.current_buffer.rebuild()
@registerCommand(MODE, 'unset', arguments=[
(['key'], {'help':'header to refine'})])
class UnsetCommand(Command):
"""remove header field"""
def __init__(self, key, **kwargs):
"""
:param key: key of the header to remove
:type key: str
"""
self.key = key
Command.__init__(self, **kwargs)
def apply(self, ui):
del(ui.current_buffer.envelope[self.key])
ui.current_buffer.rebuild()
@registerCommand(MODE, 'toggleheaders')
class ToggleHeaderCommand(Command):
"""toggle display of all headers"""
def apply(self, ui):
ui.current_buffer.toggle_all_headers()
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