Re: template questions -- hashcash and gpg ?
Corey Halpin <[email protected]>
| Newsgroups | gmane.mail.spam.tmda.user |
|---|---|
| Message-ID | <[email protected]> |
On 2008-01-25, Corey Halpin wrote: > Once I figure out how to make this actually work, I'll write up a page on > the wiki. I had somehow managed to miss (over and over) that python's strings don't use CRLF line-endings, and PGP/MIME messages require CRLF line-endings in the signed data. The attached patch fixed that, and works nicely for me. Also attached is a patch to put hashcash stamps on autoreplies. I'd like to add it to the hashcash HOWTO on the wiki, but it appears I need to ask someone to give me edit rights? regards, ~crh
gpg_signed_autoresponses
(text/plain, 2.8 KB)
Index: tmda-1.1.12/TMDA/AutoResponse.py
===================================================================
--- tmda-1.1.12.orig/TMDA/AutoResponse.py 2008-01-24 23:46:03.166814000 -0600
+++ tmda-1.1.12/TMDA/AutoResponse.py 2008-01-25 13:38:41.000000000 -0600
@@ -23,16 +23,19 @@
from email import message_from_string
+from email import encoders
from email.charset import add_alias
from email.errors import MessageError
from email.header import Header, decode_header
from email.mime.message import MIMEMessage
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
+from email.mime.application import MIMEApplication
from email.utils import formataddr, parseaddr
import os
import time
+import string
import Defaults
import Util
@@ -121,8 +124,7 @@
for h in bad_headers:
if self.bouncemsg.has_key(h):
del self.bouncemsg[h]
- textpart = MIMEText(self.bouncemsg.get_payload(), 'plain',
- self.bodycharset)
+ textpart = self.create_text();
bodyparts = 1 + Defaults.AUTORESPONSE_INCLUDE_SENDER_COPY
if bodyparts == 1:
# A single text/plain entity.
@@ -242,3 +244,27 @@
response_filename), 'w')
fp.close()
+ def create_text(self):
+ """
+ Create the body part of the MIME entity for the auto reply.
+ """
+ rc = None
+ if Defaults.USE_GPG_SIGNATURES:
+ rc=MIMEMultipart('signed', micalg='pgp-sha1',
+ protocol='application/pgp-signature')
+ body_text = MIMEText(self.bouncemsg.get_payload(),'plain',
+ self.bodycharset)
+ (gpg_in, gpg_out)=os.popen2('gpg -a -b')
+ gpg_in.write(string.replace(body_text.as_string(),'\n','\r\n'))
+ gpg_in.close()
+ signature = gpg_out.read();
+ gpg_out.close()
+ body_signature = MIMEApplication(signature, 'pgp-signature',
+ encoders.encode_noop )
+ rc.attach(body_text);
+ rc.attach(body_signature);
+ else:
+ rc = MIMEText(self.bouncemsg.get_payload(), 'plain',
+ self.bodycharset)
+ return rc
+
Index: tmda-1.1.12/TMDA/Defaults.py
===================================================================
--- tmda-1.1.12.orig/TMDA/Defaults.py 2008-01-24 23:57:06.000000000 -0600
+++ tmda-1.1.12/TMDA/Defaults.py 2008-01-24 23:57:31.000000000 -0600
@@ -1571,6 +1571,9 @@
if not vars().has_key('CRYPT_KEY_FILE'):
CRYPT_KEY_FILE = os.path.join(DATADIR, 'crypt_key')
+if not vars().has_key('USE_GPG_SIGNATURES'):
+ USE_GPG_SIGNATURES = False
+
###################################
# END of user configurable settings
###################################
hashcash_autoresponses
(text/plain, 1.4 KB)
Index: tmda-1.1.12/TMDA/AutoResponse.py
===================================================================
--- tmda-1.1.12.orig/TMDA/AutoResponse.py 2008-01-25 14:13:49.000000000 -0600
+++ tmda-1.1.12/TMDA/AutoResponse.py 2008-01-25 16:36:19.000000000 -0600
@@ -212,6 +212,13 @@
self.mimemsg['Auto-Submitted'] = 'auto-generated (failure)'
self.mimemsg['X-Delivery-Agent'] = 'TMDA/%s (%s)' % (Version.TMDA,
Version.CODENAME)
+
+ if Defaults.USE_HASHCASH_AUTOREPLIES:
+ cmd='hashcash -qm -b24 -Z1 %s' % self.mimemsg.get('to')
+ stamp = os.popen(cmd)
+ self.mimemsg['X-Hashcash']=stamp.read()
+ stamp.close()
+
# Optionally, add some custom headers.
Util.add_headers(self.mimemsg, Defaults.ADDED_HEADERS_SERVER)
# Optionally, remove some headers.
Index: tmda-1.1.12/TMDA/Defaults.py
===================================================================
--- tmda-1.1.12.orig/TMDA/Defaults.py 2008-01-25 14:13:49.000000000 -0600
+++ tmda-1.1.12/TMDA/Defaults.py 2008-01-25 14:15:51.000000000 -0600
@@ -1571,6 +1571,9 @@
if not vars().has_key('CRYPT_KEY_FILE'):
CRYPT_KEY_FILE = os.path.join(DATADIR, 'crypt_key')
+if not vars().has_key('USE_HASHCASH_AUTOREPLIES'):
+ USE_HASHCASH_AUTOREPLIES = False
+
###################################
# END of user configurable settings
###################################
signature.asc
(application/pgp-signature, 187 B)
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