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executable file 57 lines (44 sloc) 1.459 kb
#!/usr/bin/env python
import csv
import fileinput
import rfc822
import subprocess
import sys
subprocess.call("vim %s" % sys.argv[1], shell=True)
file = open(sys.argv[1], 'r')
headers = rfc822.Message(file)
to_emails = headers.getaddrlist("To")
cc_emails = headers.getaddrlist("Cc")
email_addrs = []
tokens = []
# Harvest all email addresses from the header
for email in to_emails:
email_addrs.append(email[1])
for email in cc_emails:
email_addrs.append(email[1])
# Remove duplicate emails from the list, requires Python 2.5 and later
email_addrs = list(set(email_addrs))
# Check if an appropriate token is already generated for the mail
if headers.has_key("X-Hashcash"):
for list in headers.getheaders("X-Hashcash"):
email_addrs.remove(list.split(":")[3])
if headers.has_key("Hashcash"):
for list in headers.getheaders("Hashcash"):
email_addrs.remove(list.split(":")[3])
# Call the hashcash function from the operating system to mint tokens
if email_addrs:
for email in email_addrs:
t = subprocess.Popen("hashcash -m %s -X -Z 2" % email, shell=True, stdout=subprocess.PIPE)
tokens.append(t.stdout.read())
# Write the newly minted tokens to the header
f = fileinput.FileInput(sys.argv[1], inplace=1)
for line in f:
line = line.rstrip()
if f.lineno() == 1:
for token in tokens:
print token,
print line
continue
else:
print line
file.close()
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