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#! /usr/bin/env python3
# View a single MIME multipart message.
# Display each part as a box.
import os
import sys
import getopt
import mailbox
from tkinter import *
from tkinter.scrolledtext import ScrolledText
MBOXPATH = os.environ['HOME'] + '/Mail'
class Error(Exception):
pass
def getcurrent(self):
"""Return the current message. Raise Error when there is none."""
seqs = self.get_sequences()
try:
return max(seqs['cur'])
except (ValueError, KeyError):
raise Error("no cur message")
class MimeViewer:
def __init__(self, parent, title, msg):
self.title = title
self.msg = msg
self.frame = Frame(parent, {'relief': 'raised', 'bd': 2})
self.frame.packing = {'expand': 0, 'fill': 'both'}
self.button = Checkbutton(self.frame,
{'text': title,
'command': self.toggle})
self.button.pack({'anchor': 'w'})
headertext = []
for item in msg.items():
headertext.append("%s: %s" % item)
headertext = '\n'.join(headertext)
height = countlines(headertext, 4)
if height:
self.htext = ScrolledText(self.frame,
{'height': height,
'width': 80,
'wrap': 'none',
'relief': 'raised',
'bd': 2})
self.htext.packing = {'expand': 1, 'fill': 'both',
'after': self.button}
self.htext.insert('end', headertext)
else:
self.htext = Frame(self.frame,
{'relief': 'raised', 'bd': 2})
self.htext.packing = {'side': 'top',
'ipady': 2,
'fill': 'x',
'after': self.button}
body = msg.get_payload()
if type(body) == str:
self.pad = None
height = countlines(body, 10)
if height:
self.btext = ScrolledText(self.frame,
{'height': height,
'width': 80,
'wrap': 'none',
'relief': 'raised',
'bd': 2})
self.btext.packing = {'expand': 1,
'fill': 'both'}
self.btext.insert('end', body)
else:
self.btext = None
self.parts = None
else:
self.pad = Frame(self.frame,
{'relief': 'flat', 'bd': 2})
self.pad.packing = {'side': 'left', 'ipadx': 10,
'fill': 'y', 'after': self.htext}
self.parts = []
for i in range(len(body)):
p = MimeViewer(self.frame,
'%s.%d' % (title, i+1),
body[i])
self.parts.append(p)
self.btext = None
self.collapsed = 1
def pack(self):
self.frame.pack(self.frame.packing)
def destroy(self):
self.frame.destroy()
def show(self):
if self.collapsed:
self.button.invoke()
def toggle(self):
if self.collapsed:
self.explode()
else:
self.collapse()
def collapse(self):
self.collapsed = 1
for comp in self.htext, self.btext, self.pad:
if comp:
comp.forget()
if self.parts:
for part in self.parts:
part.frame.forget()
self.frame.pack({'expand': 0})
def explode(self):
self.collapsed = 0
for comp in self.htext, self.btext, self.pad:
if comp: comp.pack(comp.packing)
if self.parts:
for part in self.parts:
part.pack()
self.frame.pack({'expand': 1})
def countlines(str, limit):
i = 0
n = 0
while n < limit:
i = str.find('\n', i)
if i < 0: break
n = n+1
i = i+1
return n
def main():
opts, args = getopt.getopt(sys.argv[1:], '')
for o, a in opts:
pass
message = None
folder = 'inbox'
for arg in args:
if arg[:1] == '+':
folder = arg[1:]
else:
message = int(arg)
mh = mailbox.MH(MBOXPATH)
f = mh.get_folder(folder)
if message is None:
message = getcurrent(f)
m = mailbox.MHMessage(f.get(message))
root = Tk()
tk = root.tk
top = MimeViewer(root, '+%s/%d' % (folder, message), m)
top.pack()
top.show()
root.minsize(1, 1)
tk.mainloop()
if __name__ == '__main__':
main()
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