Change version to 0.0.9

Signed-off-by: Thomas Oettli <spacefreak@noop.ch>

README.md

@@ -77,11 +77,17 @@ The following configuration options are optional in each quarantine section:
 
   The following template variables are available:
   * **{EMAIL_ENVELOPE_FROM}**  
-    E-mail from-address received by the milter.
+    E-mail sender address received by the milter.
+  * **{EMAIL_ENVELOPE_FROM_URL}**  
+    Like EMAIL_ENVELOPE_FROM, but URL encoded
   * **{EMAIL_FROM}**  
-    Value of the from header of the original e-mail.
-  * **{EMAIL_TO}**  
+    Value of the FROM header of the original e-mail.
+  * **{EMAIL_ENVELOPE_TO}**  
     E-mail recipient address of this notification.
+  * **{EMAIL_ENVELOPE_TO_URL}**  
+    Like EMAIL_ENVELOPE_TO, but URL encoded
+  * **{EMAIL_TO}**  
+    Value of the TO header of the original e-mail.
   * **{EMAIL_SUBJECT}**  
     Configured e-mail subject.
   * **{EMAIL_QUARANTINE_ID}**  

docs/templates/notification.template

@@ -10,6 +10,10 @@
     <td><b>From:</b></td>
     <td>{EMAIL_FROM}</td>
    </tr>
+   <tr>
+    <td><b>Envelope-To:</b></td>
+    <td>{EMAIL_ENVELOPE_TO}</td>
+   </tr>
    <tr>
     <td><b>To:</b></td>
     <td>{EMAIL_TO}</td>

pyquarantine/__init__.py

@@ -95,7 +95,8 @@ class QuarantineMilter(Milter.Base):
     def set_configfiles(config_files):
         QuarantineMilter._config_files = config_files
 
-    def connect(self, IPname, family, hostaddr):
+    def connect(self, hostname, family, hostaddr):
+        self.hostaddr = hostaddr
         self.logger.debug(
             "accepted milter connection from {} port {}".format(
                 *hostaddr))
@@ -134,15 +135,33 @@ class QuarantineMilter(Milter.Base):
             "{}: received queue-id from MTA".format(self.queueid))
         self.recipients = list(self.recipients)
         self.headers = []
+        self.logger.debug(
+            "{}: initializing memory buffer to save email data".format(
+                self.queueid))
+        # initialize memory buffer to save email data
+        self.fp = BytesIO()
         return Milter.CONTINUE
 
     @Milter.noreply
     def header(self, name, value):
-        self.headers.append((name, value))
+        try:
+            # write email header to memory buffer
+            self.fp.write("{}: {}\r\n".format(name, value).encode(
+                encoding="ascii", errors="surrogateescape"))
+            # keep copy of header without surrogates for later use
+            self.headers.append((
+                name.encode(errors="surrogateescape").decode(errors="replace"),
+                value.encode(errors="surrogateescape").decode(errors="replace")))
+        except Exception as e:
+            self.logger.exception(
+                "an exception occured in header function: {}".format(e))
+            return Milter.TEMPFAIL
+
         return Milter.CONTINUE
 
     def eoh(self):
         try:
+            self.fp.write("\r\n".encode(encoding="ascii"))
             self.whitelist_cache = whitelists.WhitelistCache()
 
             # initialize dicts to set quaranines per recipient and keep matches
@@ -238,38 +257,24 @@ class QuarantineMilter(Milter.Base):
                         self.queueid))
                 return Milter.ACCEPT
 
-            # check if the email body is needed
-            keep_body = False
+            # check if the mail body is needed
             for recipient, quarantine in self.recipients_quarantines.items():
                 if quarantine["quarantine_obj"] or quarantine["notification_obj"]:
-                    keep_body = True
-                    break
+                    # mail body is needed, continue processing
+                    return Milter.CONTINUE
 
-            if keep_body:
-                self.logger.debug(
-                    "{}: initializing memory buffer to save email data".format(
-                        self.queueid))
-                # initialize memory buffer to save email data
-                self.fp = BytesIO()
-                # write email headers to memory buffer
-                for name, value in self.headers:
-                    self.fp.write("{}: {}\n".format(name, value).encode())
-                self.fp.write("\n".encode())
-            else:
-                # quarantine and notification are disabled on all matching
-                # quarantines, return configured action
-                quarantine = self._get_preferred_quarantine()
-                self.logger.info(
-                    "{}: {} matching quarantine is '{}', performing milter action {}".format(
-                        self.queueid,
-                        self.global_config["preferred_quarantine_action"],
-                        quarantine["name"],
-                        quarantine["action"].upper()))
-                if quarantine["action"] == "reject":
-                    self.setreply("554", "5.7.0", quarantine["reject_reason"])
-                return quarantine["milter_action"]
-
-            return Milter.CONTINUE
+            # quarantine and notification are disabled on all matching
+            # quarantines, just return configured action
+            quarantine = self._get_preferred_quarantine()
+            self.logger.info(
+                "{}: {} matching quarantine is '{}', performing milter action {}".format(
+                    self.queueid,
+                    self.global_config["preferred_quarantine_action"],
+                    quarantine["name"],
+                    quarantine["action"].upper()))
+            if quarantine["action"] == "reject":
+                self.setreply("554", "5.7.0", quarantine["reject_reason"])
+            return quarantine["milter_action"]
 
         except Exception as e:
             self.logger.exception(
@@ -372,6 +377,11 @@ class QuarantineMilter(Milter.Base):
                 "an exception occured in eom function: {}".format(e))
             return Milter.TEMPFAIL
 
+    def close(self):
+        self.logger.debug(
+            "disconnect from {} port {}".format(
+                *self.hostaddr))
+
 
 def generate_milter_config(configtest=False, config_files=[]):
     "Generate the configuration for QuarantineMilter class."

pyquarantine/cli.py

@@ -20,6 +20,8 @@ import logging.handlers
 import sys
 import time
 
+from email.header import decode_header, make_header
+
 import pyquarantine
 
 from pyquarantine.version import __version__ as version
@@ -56,7 +58,7 @@ def print_table(columns, rows):
         # get the length of the longest value
         lengths.append(
             len(str(max(rows, key=lambda x: len(str(x[key])))[key])))
-        # use the the longer one
+        # use the longer one
         length = max(lengths)
         column_lengths.append(length)
         column_formats.append("{{:<{}}}".format(length))
@@ -120,6 +122,9 @@ def list_quarantine_emails(config, args):
         row["recipient"] = metadata["recipients"].pop(0)
         if "subject" not in emails[quarantine_id]["headers"].keys():
             emails[quarantine_id]["headers"]["subject"] = ""
+        row["subject"] = str(make_header(decode_header(
+            emails[quarantine_id]["headers"]["subject"])))[:60].replace(
+                "\r", "").replace("\n", "").strip()
         rows.append(row)
 
         if metadata["recipients"]:

pyquarantine/notifications.py

@@ -19,10 +19,12 @@ import re
 from bs4 import BeautifulSoup
 from cgi import escape
 from collections import defaultdict
+from email.header import decode_header, make_header
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
 from email.mime.image import MIMEImage
 from os.path import basename
+from urllib.parse import quote
 
 from pyquarantine import mailer
 
@@ -229,15 +231,12 @@ class EMailNotification(BaseNotification):
                     break
 
         if body is not None:
-            # get the character set, fallback to utf-8 if not defined in header
-            charset = body.get_content_charset()
-            if charset is None:
-                charset = "utf-8"
-
-            # decode content
-            content = body.get_payload(decode=True).decode(
-                encoding=charset, errors="replace")
-
+            charset = body.get_content_charset() or "utf-8"
+            content = body.get_payload(decode=True)
+            try:
+                content = content.decode(encoding=charset, errors="replace")
+            except LookupError:
+                content = content.decode("utf-8", errors="replace")
             content_type = body.get_content_type()
             if content_type == EMailNotification._plain_text:
                 # convert text/plain to text/html
@@ -353,19 +352,26 @@ class EMailNotification(BaseNotification):
                 "{}: generating notification email for '{}'".format(
                     queueid, recipient))
             self.logger.debug("{}: parsing email template".format(queueid))
-            if "from" not in headers.keys():
-                headers["from"] = ""
-            if "to" not in headers.keys():
-                headers["to"] = ""
-            if "subject" not in headers.keys():
-                headers["subject"] = ""
+            # decode some headers
+            decoded_headers = {}
+            for header in ["from", "to", "subject"]:
+                if header in headers:
+                    decoded_headers[header] = str(
+                        make_header(decode_header(headers[header])))
+                else:
+                    headers[header] = ""
+                    decoded_headers[header] = ""
+
             # generate dict containing all template variables
             variables = defaultdict(str,
                                     EMAIL_HTML_TEXT=sanitized_text,
-                                    EMAIL_FROM=escape(headers["from"]),
+                                    EMAIL_FROM=escape(decoded_headers["from"]),
                                     EMAIL_ENVELOPE_FROM=escape(mailfrom),
-                                    EMAIL_TO=escape(recipient),
-                                    EMAIL_SUBJECT=escape(headers["subject"]),
+                                    EMAIL_ENVELOPE_FROM_URL=escape(quote(mailfrom)),
+                                    EMAIL_TO=escape(decoded_headers["to"]),
+                                    EMAIL_ENVELOPE_TO=escape(recipient),
+                                    EMAIL_ENVELOPE_TO_URL=escape(quote(recipient)),
+                                    EMAIL_SUBJECT=escape(decoded_headers["subject"]),
                                     EMAIL_QUARANTINE_ID=quarantine_id)
 
             if subgroups:

pyquarantine/version.py

@@ -1 +1 @@
-__version__ = "0.0.7"
+__version__ = "0.0.9"