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import os
import re
import glob
import logging
import email
import tempfile
from email import Charset
from twisted.internet import defer
from alot.commands import Command, registerCommand
from alot import settings
from alot import helper
from alot.message import decode_header
from alot.message import encode_header
from alot.message import extract_headers
from alot.message import extract_body
from alot.commands.globals import EditCommand
from alot.commands.globals import BufferCloseCommand
from alot.commands.globals import EnvelopeOpenCommand
MODE = 'envelope'
@registerCommand(MODE, 'attach', help='attach files to the mail', arguments=[
(['path'], {'help':'file(s) to attach (accepts wildcads)'})])
class EnvelopeAttachCommand(Command):
def __init__(self, path=None, mail=None, **kwargs):
Command.__init__(self, **kwargs)
self.mail = mail
self.path = path
def apply(self, ui):
msg = self.mail
if not msg:
msg = ui.current_buffer.get_email()
if self.path:
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')
logging.info("attaching: %s" % files)
for path in files:
helper.attach(path, msg)
if not self.mail: # set the envelope msg iff we got it from there
ui.current_buffer.set_email(msg)
@registerCommand(MODE, 'refine', help='prompt to change the value of a header',
arguments=[
(['key'], {'help':'header to refine'})])
class EnvelopeRefineCommand(Command):
def __init__(self, key='', **kwargs):
Command.__init__(self, **kwargs)
self.key = key
def apply(self, ui):
mail = ui.current_buffer.get_email()
value = decode_header(mail.get(self.key, ''))
ui.commandprompt('set %s %s' % (self.key, value))
@registerCommand(MODE, 'send', help='sends mail')
class EnvelopeSendCommand(Command):
@defer.inlineCallbacks
def apply(self, ui):
envelope = ui.current_buffer
mail = envelope.get_email()
frm = decode_header(mail.get('From'))
sname, saddr = email.Utils.parseaddr(frm)
account = ui.accountman.get_account_by_address(saddr)
if account:
# attach signature file if present
if account.signature:
sig = os.path.expanduser(account.signature)
if os.path.isfile(sig):
if account.signature_filename:
name = account.signature_filename
else:
name = None
helper.attach(sig, mail, filename=name)
else:
ui.notify('could not locate signature: %s' % sig,
priority='error')
if (yield ui.choice('send without signature',
select='yes', cancel='no')) == 'no':
return
clearme = ui.notify('sending..', timeout=-1, block=False)
reason = account.send_mail(mail)
ui.clear_notify([clearme])
if not reason: # sucessfully send mail
cmd = BufferCloseCommand(buffer=envelope)
ui.apply_command(cmd)
ui.notify('mail send successful')
else:
ui.notify('failed to send: %s' % reason, priority='error')
else:
ui.notify('failed to send: no account set up for %s' % saddr,
priority='error')
@registerCommand(MODE, 'reedit', help='edit currently open mail')
class EnvelopeEditCommand(Command):
def __init__(self, mail=None, **kwargs):
self.mail = mail
self.openNew = (mail != None)
Command.__init__(self, **kwargs)
def apply(self, ui):
Charset.add_charset('utf-8', Charset.QP, Charset.QP, 'utf-8')
if not self.mail:
self.mail = ui.current_buffer.get_email()
#determine editable headers
edit_headers = set(settings.config.getstringlist('general',
'edit_headers_whitelist'))
if '*' in edit_headers:
edit_headers = set(self.mail.keys())
blacklist = set(settings.config.getstringlist('general',
'edit_headers_blacklist'))
if '*' in blacklist:
blacklist = set(self.mail.keys())
ui.logger.debug('BLACKLIST: %s' % blacklist)
self.edit_headers = edit_headers - blacklist
ui.logger.info('editable headers: %s' % blacklist)
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)
enc = settings.config.get('general', 'editor_writes_encoding')
editor_input = f.read().decode(enc)
if self.edit_headers:
headertext, bodytext = editor_input.split('\n\n', 1)
else:
headertext = ''
bodytext = editor_input
# call post-edit translate hook
translate = settings.hooks.get('post_edit_translate')
if translate:
bodytext = translate(bodytext, ui=ui, dbm=ui.dbman,
aman=ui.accountman, log=ui.logger,
config=settings.config)
# go through multiline, utf-8 encoded headers
key = value = None
for line in headertext.splitlines():
if re.match('[a-zA-Z0-9_-]+:', line): # new k/v pair
if key and value: # save old one from stack
del self.mail[key] # ensure unique values in mails
self.mail[key] = encode_header(key, value) # save
key, value = line.strip().split(':', 1) # parse new pair
elif key and value: # append new line without key prefix
value += line
if key and value: # save last one if present
del self.mail[key]
self.mail[key] = encode_header(key, value)
if self.mail.is_multipart():
for part in self.mail.walk():
if part.get_content_maintype() == 'text':
if 'Content-Transfer-Encoding' in part:
del(part['Content-Transfer-Encoding'])
part.set_payload(bodytext, 'utf-8')
break
f.close()
os.unlink(tf.name)
if self.openNew:
ui.apply_command(EnvelopeOpenCommand(mail=self.mail))
else:
ui.current_buffer.set_email(self.mail)
# decode header
headertext = extract_headers(self.mail, self.edit_headers)
bodytext = extract_body(self.mail)
# call pre-edit translate hook
translate = settings.hooks.get('pre_edit_translate')
if translate:
bodytext = translate(bodytext, ui=ui, dbm=ui.dbman,
aman=ui.accountman, log=ui.logger,
config=settings.config)
#write stuff to tempfile
tf = tempfile.NamedTemporaryFile(delete=False)
content = bodytext
if headertext:
content = '%s\n\n%s' % (headertext, content)
tf.write(content.encode('utf-8'))
tf.flush()
tf.close()
cmd = EditCommand(tf.name, on_success=openEnvelopeFromTmpfile,
refocus=False)
ui.apply_command(cmd)
@registerCommand(MODE, 'set', help='set header value', arguments=[
(['--append'], {'action': 'store_true', 'help':'keep previous value'}),
(['key'], {'help':'header to refine'}),
(['value'], {'nargs':'+', 'help':'value'})])
class EnvelopeSetCommand(Command):
def __init__(self, key, value, append=False, **kwargs):
self.key = key
self.value = encode_header(key, ' '.join(value))
self.append = append
Command.__init__(self, **kwargs)
def apply(self, ui):
envelope = ui.current_buffer
mail = envelope.get_email()
if not self.append:
del(mail[self.key])
mail[self.key] = self.value
envelope.set_email(mail)
envelope.rebuild()
@registerCommand(MODE, 'unset', help='remove header field', arguments=[
(['key'], {'help':'header to refine'})])
class EnvelopeSetCommand(Command):
def __init__(self, key, **kwargs):
self.key = key
Command.__init__(self, **kwargs)
def apply(self, ui):
mail = ui.current_buffer.get_email()
del(mail[self.key])
ui.current_buffer.set_email(mail)
@registerCommand(MODE, 'toggleheaders',
help='toggle display of all headers')
class ToggleHeaderCommand(Command):
def apply(self, ui):
ui.current_buffer.header_wgt.toggle_all()
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