Files
modoboa/lib/email_listing.py
T
2010-04-30 17:18:22 +02:00

241 lines
8.2 KiB
Python

# -*- coding: utf-8 -*-
import time
import re
import os
import time, random, hashlib
from email.header import decode_header
import lxml
import lxml.html
from lxml import etree
from django.template.loader import render_to_string
from django.template import Template, Context
from django.utils.translation import ugettext as _
from mailng.lib import _render, decode
attached_map = {}
class MBconnector(object):
def __init__(self, address, port):
self.address = address
self.port = port
def messages_count(self, **kwargs):
pass
class Page(object):
def __init__(self, pageid, id_start, id_stop, items,
items_per_page, has_previous, has_next,
baseurl=None):
self.pageid = pageid
self.id_start = id_start
self.id_stop = id_stop
self.items = items
self.items_per_page = items_per_page
self.has_previous = has_previous
self.has_next = has_next
self.baseurl = baseurl
def previous_page(self):
if not self.has_previous:
return False
return self.pageid - 1
def next_page(self):
if not self.has_next:
return False
return self.pageid + 1
def last_page(self):
lid = self.items / self.items_per_page
if not lid:
return 1
if self.items % self.items_per_page:
lid += 1
return lid
class Paginator(object):
def __init__(self, total, elems_per_page):
self.total = total
self.elems_per_page = elems_per_page
self.baseurl = None
def _indexes(self, page):
id_start = self.elems_per_page * page + 1
id_stop = id_start + self.elems_per_page - 1
return (id_start, id_stop)
def getpage(self, page):
if page < 1:
return None
id_start, id_stop = self._indexes(page - 1)
has_previous = has_next = False
if id_start <= self.total:
if page > 1:
has_previous = True
if id_stop < self.total:
has_next = True
else:
id_stop = self.total
else:
return None
p = Page(page, id_start, id_stop, self.total,
self.elems_per_page, has_previous, has_next)
if self.baseurl:
p.baseurl = self.baseurl
return p
class EmailListing:
def __init__(self, baseurl=None, folder=None, elems_per_page=40,
navparams={}, **kwargs):
self.folder = folder
self.elems_per_page = elems_per_page
self.navparams = navparams
order = "order" in kwargs.keys() and kwargs["order"] or None
self.empty = "empty" in kwargs.keys() and kwargs["empty"] or False
if not self.empty:
self.paginator = Paginator(self.mbc.messages_count(folder=self.folder,
order=order),
elems_per_page)
if baseurl:
self.paginator.baseurl = baseurl
def render_navbar(self, page):
if page is None:
return ""
return render_to_string("common/navbar.html", {
"page" : page
})
def fetch(self, request, id_start, id_stop):
table = self.tbltype(self.mbc.fetch(start=id_start, stop=id_stop,
folder=self.folder))
tpl = Template("""
<form method="POST" id="listingform">
{{ table }}
</form>""")
return tpl.render(Context({"table" : table.render(request)}))
def render(self, request, pageid=1, **kwargs):
listing = ""
page = None
if not self.empty:
page = self.paginator.getpage(pageid)
if not page:
listing = "Empty folder"
else:
listing = self.fetch(request, page.id_start, page.id_stop)
elapsed = kwargs.has_key("start") and time.time() - kwargs["start"] or 0
return _render(request, self.tpl, {
"listing" : listing,
"elapsed" : elapsed,
"navbar" : self.render_navbar(page),
"selection" : self.folder,
"navparams" : self.navparams,
"deflocation" : self.deflocation,
"defcallback" : self.defcallback,
"reset_wm_url" : self.reset_wm_url
})
class Email(object):
def __init__(self, msg, mode="plain", links="0"):
self.attached_map = {}
contents = {"html" : "", "plain" : ""}
self.headers = []
self.attachments = []
for part in msg.walk():
if part.get_content_maintype() == 'multipart':
continue
if part.has_key("Content-Disposition"):
if re.match("^attachment", part["Content-Disposition"]):
self.attachments += [part]
if part.get_content_type() in ("text/html", "text/plain"):
contents[part.get_content_subtype()] += part.get_payload(decode=True)
if mode != "html" or links == "0":
continue
if part.get_content_maintype() == "image":
if part.has_key("Content-Location"):
fname = part["Content-Location"]
if re.match("^http:", fname):
path = fname
else:
path = os.path.abspath("static/tmp" + fname)
fp = open(path, "wb")
fp.write(part.get_payload(decode=True))
fp.close()
m = re.match("<(.+)>", part["Content-ID"])
if m:
self.attached_map[m.group(1)] = path
else:
self.attached_map[part["Content-ID"]] = path
if not contents.has_key(mode) or contents[mode] == "":
if mode == "html":
mode = "plain"
else:
mode = "html"
self.pre, self.body = \
getattr(self, "viewmail_%s" % mode)(contents[mode], links=links)
def map_cid(self, url):
import re
map = globals()["attached_map"]
m = re.match(".*cid:([^\"]+)", url)
if m:
if map.has_key(m.group(1)):
return map[m.group(1)]
return url
def render_headers(self, folder, mail_id):
attachments = []
for part in self.attachments:
decoded = decode_header(part.get_filename())
if decoded[0][1] is None:
attachments += [decoded[0][0]]
else:
attachments += [unicode(decoded[0][0], decoded[0][1])]
return render_to_string("webmail/headers.html", {
"headers" : self.headers,
"folder" : folder, "mail_id" : mail_id,
"attachments" : attachments != [] and attachments or None
})
def render(self, request):
return _render(request, 'common/getmailcontent.html', {
"body" : self.body, "pre" : self.pre
})
def viewmail_plain(self, content, **kwargs):
body = decode(content)
return (True, body)
def viewmail_html(self, content, **kwargs):
links = kwargs.has_key("links") and kwargs["links"] or "0"
html = lxml.html.fromstring(content)
if links == "0":
html.rewrite_links(lambda x: None)
else:
html.rewrite_links(self.map_cid)
body = html.find("body")
if body is None:
body = lxml.html.tostring(html)
else:
body = lxml.html.tostring(body)
body = re.sub("<(/?)body", lambda m: "<%sdiv" % m.group(1), body)
body = Template(decode(body)).render({})
return (False, body)
def parse_search_parameters(request):
if request.GET.has_key("pattern"):
request.session["pattern"] = re.escape(request.GET["pattern"])
if request.GET.has_key("criteria"):
request.session["criteria"] = request.GET["criteria"]
else:
request.session["criteria"] = ["from_addr"]
else:
for p in ["pattern", "criteria"]:
if p in request.session.keys():
del request.session[p]