diff --git a/CHANGELOG.md b/CHANGELOG.md
index 64fb76e..2f6a365 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,19 +4,21 @@ CHANGELOG
Development
-----------
-DNS:
-
-* If a custom CNAME record is set, don't add a default A/AAAA record, e.g. for 'www', which end up preventing the CNAME record from working.
-
Control panel:
* Status checks now check that system services are actually running by pinging each port that should have something running on it.
+* If a custom CNAME record is set on a 'www' subdomain, the default A/AAAA records were preventing the CNAME from working.
Setup:
* Install cron if it isn't already installed.
* Fix a units problem in the minimum memory check.
+Miscellaneous:
+
+* Internationalized domain names (IDNs) are now supported for DNS and web, but email is not yet tested.
+
+
v0.06 (January 4, 2015)
-----------------------
diff --git a/management/dns_update.py b/management/dns_update.py
index cb0eb86..9925840 100755
--- a/management/dns_update.py
+++ b/management/dns_update.py
@@ -382,17 +382,26 @@ $TTL 1800 ; default time to live
"""
# Replace replacement strings.
- zone = zone.format(domain=domain, primary_domain=env["PRIMARY_HOSTNAME"])
+ zone = zone.format(domain=domain.encode("idna").decode("ascii"), primary_domain=env["PRIMARY_HOSTNAME"].encode("idna").decode("ascii"))
# Add records.
for subdomain, querytype, value, explanation in records:
if subdomain:
- zone += subdomain
+ zone += subdomain.encode("idna").decode("ascii")
zone += "\tIN\t" + querytype + "\t"
if querytype == "TXT":
+ # Quote and escape.
value = value.replace('\\', '\\\\') # escape backslashes
value = value.replace('"', '\\"') # escape quotes
value = '"' + value + '"' # wrap in quotes
+ elif querytype in ("NS", "CNAME"):
+ # These records must be IDNA-encoded.
+ value = value.encode("idna").decode("ascii")
+ elif querytype == "MX":
+ # Also IDNA-encoded, but must parse first.
+ priority, host = value.split(" ", 1)
+ host = host.encode("idna").decode("ascii")
+ value = priority + " " + host
zone += value + "\n"
# DNSSEC requires re-signing a zone periodically. That requires
@@ -486,7 +495,7 @@ server:
zone:
name: %s
zonefile: %s
-""" % (domain, zonefile)
+""" % (domain.encode("idna").decode("ascii"), zonefile)
# If a custom secondary nameserver has been set, allow zone transfers
# and notifies to that nameserver.
@@ -531,6 +540,9 @@ def sign_zone(domain, zonefile, env):
algo = dnssec_choose_algo(domain, env)
dnssec_keys = load_env_vars_from_file(os.path.join(env['STORAGE_ROOT'], 'dns/dnssec/%s.conf' % algo))
+ # From here, use the IDNA encoding of the domain name.
+ domain = domain.encode("idna").decode("ascii")
+
# In order to use the same keys for all domains, we have to generate
# a new .key file with a DNSSEC record for the specific domain. We
# can reuse the same key, but it won't validate without a DNSSEC
diff --git a/management/mailconfig.py b/management/mailconfig.py
index 1ddcd47..6fbbbde 100755
--- a/management/mailconfig.py
+++ b/management/mailconfig.py
@@ -14,7 +14,7 @@ def validate_email(email, mode=None):
if mode == 'user':
# For Dovecot's benefit, only allow basic characters.
- ATEXT = r'[\w\-]'
+ ATEXT = r'[a-zA-Z0-9_\-]'
elif mode in (None, 'alias'):
# For aliases, we can allow any valid email address.
# Based on RFC 2822 and https://github.com/SyrusAkbary/validate_email/blob/master/validate_email.py,
@@ -36,9 +36,34 @@ def validate_email(email, mode=None):
DOT_ATOM_TEXT_HOST = ATEXT + r'+(?:\.' + ATEXT + r'+)+'
# per RFC 2822 3.4.1
- ADDR_SPEC = '^%s@%s$' % (DOT_ATOM_TEXT_LOCAL, DOT_ATOM_TEXT_HOST)
+ ADDR_SPEC = '^(%s)@(%s)$' % (DOT_ATOM_TEXT_LOCAL, DOT_ATOM_TEXT_HOST)
- return re.match(ADDR_SPEC, email)
+ # Check the regular expression.
+ m = re.match(ADDR_SPEC, email)
+ if not m: return False
+
+ # Check that the domain part is IDNA-encodable.
+ localpart, domainpart = m.groups()
+ try:
+ domainpart.encode("idna")
+ except:
+ return False
+
+ return True
+
+def sanitize_idn_email_address(email):
+ # Convert an IDNA-encoded email address (domain part) into Unicode
+ # before storing in our database. Chrome may IDNA-ize
+ # values before POSTing, so we want to normalize before putting
+ # values into the database.
+ try:
+ localpart, domainpart = email.split("@")
+ domainpart = domainpart.encode("ascii").decode("idna")
+ return localpart + "@" + domainpart
+ except:
+ # Domain part is already Unicode or not IDNA-valid, so
+ # leave unchanged.
+ return email
def open_database(env, with_connection=False):
conn = sqlite3.connect(env["STORAGE_ROOT"] + "/mail/users.sqlite")
@@ -230,6 +255,9 @@ def get_mail_domains(env, filter_aliases=lambda alias : True):
)
def add_mail_user(email, pw, privs, env):
+ # accept IDNA domain names but normalize to Unicode before going into database
+ email = sanitize_idn_email_address(email)
+
# validate email
if email.strip() == "":
return ("No email address provided.", 400)
@@ -284,6 +312,10 @@ def add_mail_user(email, pw, privs, env):
return kick(env, "mail user added")
def set_mail_password(email, pw, env):
+ # accept IDNA domain names but normalize to Unicode before going into database
+ email = sanitize_idn_email_address(email)
+
+ # validate that password is acceptable
validate_password(pw)
# hash the password
@@ -298,6 +330,10 @@ def set_mail_password(email, pw, env):
return "OK"
def remove_mail_user(email, env):
+ # accept IDNA domain names but normalize to Unicode before going into database
+ email = sanitize_idn_email_address(email)
+
+ # remove
conn, c = open_database(env, with_connection=True)
c.execute("DELETE FROM users WHERE email=?", (email,))
if c.rowcount != 1:
@@ -311,6 +347,10 @@ def parse_privs(value):
return [p for p in value.split("\n") if p.strip() != ""]
def get_mail_user_privileges(email, env):
+ # accept IDNA domain names but normalize to Unicode before going into database
+ email = sanitize_idn_email_address(email)
+
+ # get privs
c = open_database(env)
c.execute('SELECT privileges FROM users WHERE email=?', (email,))
rows = c.fetchall()
@@ -324,6 +364,9 @@ def validate_privilege(priv):
return None
def add_remove_mail_user_privilege(email, priv, action, env):
+ # accept IDNA domain names but normalize to Unicode before going into database
+ email = sanitize_idn_email_address(email)
+
# validate
validation = validate_privilege(priv)
if validation: return validation
@@ -351,6 +394,9 @@ def add_remove_mail_user_privilege(email, priv, action, env):
return "OK"
def add_mail_alias(source, destination, env, update_if_exists=False, do_kick=True):
+ # accept IDNA domain names but normalize to Unicode before going into database
+ source = sanitize_idn_email_address(source)
+
# validate source
if source.strip() == "":
return ("No incoming email address provided.", 400)
@@ -363,13 +409,14 @@ def add_mail_alias(source, destination, env, update_if_exists=False, do_kick=Tru
if validate_email(destination, mode='alias'):
# Oostfix allows a single @domain.tld as the destination, which means
# the local part on the address is preserved in the rewrite.
- dests.append(destination)
+ dests.append(sanitize_idn_email_address(destination))
else:
# Parse comma and \n-separated destination emails & validate. In this
# case, the recipients must be complete email addresses.
for line in destination.split("\n"):
for email in line.split(","):
email = email.strip()
+ email = sanitize_idn_email_address(email) # Unicode => IDNA
if email == "": continue
if not validate_email(email):
return ("Invalid destination email address (%s)." % email, 400)
@@ -397,6 +444,10 @@ def add_mail_alias(source, destination, env, update_if_exists=False, do_kick=Tru
return kick(env, return_status)
def remove_mail_alias(source, env, do_kick=True):
+ # accept IDNA domain names but normalize to Unicode before going into database
+ source = sanitize_idn_email_address(source)
+
+ # remove
conn, c = open_database(env, with_connection=True)
c.execute("DELETE FROM aliases WHERE source=?", (source,))
if c.rowcount != 1:
diff --git a/management/status_checks.py b/management/status_checks.py
index db7a466..c9b82ea 100755
--- a/management/status_checks.py
+++ b/management/status_checks.py
@@ -552,6 +552,7 @@ def check_certificate(domain, ssl_certificate, ssl_private_key):
if m:
cert_expiration_date = dateutil.parser.parse(m.group(1))
+ domain = domain.encode("idna").decode("ascii")
wildcard_domain = re.sub("^[^\.]+", "*", domain)
if domain is not None and domain not in certificate_names and wildcard_domain not in certificate_names:
return ("The certificate is for the wrong domain name. It is for %s."
diff --git a/management/templates/aliases.html b/management/templates/aliases.html
index 86c8c4d..5ec85c5 100644
--- a/management/templates/aliases.html
+++ b/management/templates/aliases.html
@@ -27,6 +27,7 @@
+
You may use international (non-ASCII) characters, but this has not yet been well tested.
Add an email address to this system. This will create a new login username/password. (Use aliases to create email addresses that forward to existing accounts.)
+
Add an email address to this system. This will create a new login username/password.
-
- Passwords must be at least four characters and may not contain spaces.
- Administrators get access to this control panel.
-
+
+
Passwords must be at least four characters and may not contain spaces.
+
Use aliases to create email addresses that forward to existing accounts.
+
Administrators get access to this control panel.
+
User accounts cannot contain any international (non-ASCII) characters, but aliases can.