listfix/email.py (view raw)
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import re
import os
re_header_cont = re.compile("^\s+\S+")
re_header_end = re.compile("^\s*$")
re_email_parts = re.compile("(\S+)@(\S+\.\S+)")
re_sender_info = re.compile("^From:\s+\"?([^<>\"]*?)\"?\s*<?(([^<>\"\s]+)@\S+\.[^<>\"\s]+)>?$")
re_auto_reply = re.compile("^Auto-Submitted: (auto-generated|auto-replied)", re.IGNORECASE)
class Email:
def __init__(self):
self.content = []
return
def set_content(self, content):
if (type(content) is list):
if (len(content) > 0):
self.content = content[:]
else:
return False
else:
return False
return True
def get_content(self):
if (len(self.content) == 0):
return False
return self.content[:]
def get_header(self, header):
rval = None
if (len(self.content) == 0):
return False
header = header.rstrip()
if (header[-1] == ":"):
header = header[0:-1]
re_header = re.compile("^" + header + ": ", re.IGNORECASE)
append_next = False
in_header = True
for line in self.content:
if (in_header):
if (re_header_cont.match(line) and append_next):
rval = rval + " " + line.rstrip().lstrip()
continue
append_next = False
if (re_header.match(line)):
rval = line.rstrip()
append_next = True
elif (re_header_end.match(line)):
in_header = False
else:
break
return rval
def get_sender_email(self):
sender_email = None
if (len(self.content) == 0):
return False
from_line = self.get_header("From")
if (from_line):
if (re_sender_info.match(from_line)):
results = re_sender_info.search(from_line)
sender_email = results.group(2)
else:
return False
else:
return False
return sender_email
def get_sender_name(self):
sender_name = None
if (len(self.content) == 0):
return False
from_line = self.get_header("From")
if (from_line):
if (re_sender_info.match(from_line)):
results = re_sender_info.search(from_line)
sender_name = results.group(1) if results.group(1) else results.group(3)
else:
return False
else:
return False
return sender_name
def is_auto_reply(self):
if (len(self.content) == 0):
return False
auto_sub_line = self.get_header("Auto-Submitted")
if (auto_sub_line and re_auto_reply.match(auto_sub_line)):
return True
return False
def strip_headers(self, exclude):
if (len(self.content) == 0):
return False
stripped_content = []
append_next = False
in_header = True
for line in self.content:
if (in_header):
if (re_header_cont.match(line) and append_next):
stripped_content.append(line)
continue
if (re_header_end.match(line)):
stripped_content.append(line)
in_header = False
continue
append_next = False
for ex in exclude:
if (re.match("^" + ex + ": ", line, re.IGNORECASE)):
stripped_content.append(line)
append_next = True
break
else:
stripped_content.append(line)
self.content = stripped_content[:]
return True
def add_header(self, header):
if (len(self.content) == 0):
return False
header = header.rstrip() + "\n"
self.content.append(header)
return
def add_header_prepend(self, header):
if (len(self.content) == 0):
return False
header = header.rstrip() + "\n"
self.content.insert(0, header)
return
def send(self, recipient):
if (len(self.content) == 0):
return False
p = os.popen(f"/usr/sbin/sendmail -G -i {recipient}", "w")
for line in self.content:
p.write(line)
p.close()
return True
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