v0.14

v0.14 (November 4, 2015)
------------------------

Mail:

* Spamassassin's network-based tests (Pyzor, others) and DKIM tests are now enabled. (Pyzor had always been installed but was not active due to a misconfiguration.)
* Moving spam out of the Spam folder and into Trash would incorrectly train Spamassassin that those messages were not spam.
* Automatically create the Sent and Archive folders for new users.
* The HTML5_Notifier plugin for Roundcube is now included, which when turned on in Roundcube settings provides desktop notifications for new mail.
* The Exchange/ActiveSync backend Z-Push has been updated to fix a problem with CC'd emails not being sent to the CC recipients.

Calender/Contacts:

* CalDAV/CardDAV and Exchange/ActiveSync for calendar/contacts wasn't working in some network configurations.

Web:

* When a new domain is added to the box, rather than applying a new self-signed certificate for that domain, the SSL certificate for the box's primary hostname will be used instead.
* If a custom DNS record is set on a domain or 'www'+domain, web would not be served for that domain. If the custom DNS record is just the box's IP address, that's a configuration mistake, but allow it and let web continue to be served.
* Accommodate really long domain names by increasing an nginx setting.

Control panel:

* Added an option to check for new Mail-in-a-Box versions within status checks. It is off by default so that boxes don't "phone home" without permission.
* Added a random password generator on the users page to simplify creating new accounts.
* When S3 backup credentials are set, the credentials are now no longer ever sent back from the box to the client, for better security.
* Fixed the jumpiness when a modal is displayed.
* Focus is put into the login form fields when the login form is displayed.
* Status checks now include a warning if a custom DNS record has been set on a domain that would normally serve web and as a result that domain no longer is serving web.
* Status checks now check that secondary nameservers, if specified, are actually serving the domains.
* Some errors in the control panel when there is invalid data in the database or an improperly named archived user account have been suppressed.
* Added subresource integrity attributes to all remotely-sourced resources (i.e. via CDNs) to guard against CDNs being used as an attack vector.

System:

* Tweaks to fail2ban settings.
* Fixed a spurrious warning while installing munin.

CHANGELOG.md

@@ -1,15 +1,95 @@
 CHANGELOG
 =========
 
+v0.14 (November 4, 2015)
+------------------------
+
+Mail:
+
+* Spamassassin's network-based tests (Pyzor, others) and DKIM tests are now enabled. (Pyzor had always been installed but was not active due to a misconfiguration.)
+* Moving spam out of the Spam folder and into Trash would incorrectly train Spamassassin that those messages were not spam.
+* Automatically create the Sent and Archive folders for new users.
+* The HTML5_Notifier plugin for Roundcube is now included, which when turned on in Roundcube settings provides desktop notifications for new mail.
+* The Exchange/ActiveSync backend Z-Push has been updated to fix a problem with CC'd emails not being sent to the CC recipients.
+
+Calender/Contacts:
+
+* CalDAV/CardDAV and Exchange/ActiveSync for calendar/contacts wasn't working in some network configurations.
+
+Web:
+
+* When a new domain is added to the box, rather than applying a new self-signed certificate for that domain, the SSL certificate for the box's primary hostname will be used instead.
+* If a custom DNS record is set on a domain or 'www'+domain, web would not be served for that domain. If the custom DNS record is just the box's IP address, that's a configuration mistake, but allow it and let web continue to be served.
+* Accommodate really long domain names by increasing an nginx setting.
+
+Control panel:
+
+* Added an option to check for new Mail-in-a-Box versions within status checks. It is off by default so that boxes don't "phone home" without permission.
+* Added a random password generator on the users page to simplify creating new accounts.
+* When S3 backup credentials are set, the credentials are now no longer ever sent back from the box to the client, for better security.
+* Fixed the jumpiness when a modal is displayed.
+* Focus is put into the login form fields when the login form is displayed.
+* Status checks now include a warning if a custom DNS record has been set on a domain that would normally serve web and as a result that domain no longer is serving web.
+* Status checks now check that secondary nameservers, if specified, are actually serving the domains.
+* Some errors in the control panel when there is invalid data in the database or an improperly named archived user account have been suppressed.
+* Added subresource integrity attributes to all remotely-sourced resources (i.e. via CDNs) to guard against CDNs being used as an attack vector.
+
+System:
+
+* Tweaks to fail2ban settings.
+* Fixed a spurrious warning while installing munin.
+
+v0.13b (August 30, 2015)
+------------------------
+
+Another ownCloud 8.1.1 issue was found. New installations left ownCloud improperly setup ("You are accessing the server from an untrusted domain."). Upgrading to this version will fix that.
+
+v0.13a (August 23, 2015)
+------------------------
+
+Note: v0.13 (no 'a', August 19, 2015) was pulled immediately due to an ownCloud bug that prevented upgrades. v0.13a works around that problem.
+
+Mail:
+
+* Outbound mail headers (the Recieved: header) are tweaked to possibly improve deliverability.
+* Some MIME messages would hang Roundcube due to a missing package.
+* The users permitted to send as an alias can now be different from where an alias forwards to.
+
+DNS:
+
+* The secondary nameservers option in the control panel now accepts more than one nameserver and a special xfr:IP format to specify zone-transfer-only IP addresses.
+* A TLSA record is added for HTTPS for DNSSEC-aware clients that support it.
+
+System:
+
+* Backups can now be turned off, or stored in Amazon S3, through new control panel options.
+* Munin was not working on machines confused about their hostname and had lots of errors related to PANGO, NTP peers and network interfaces that were not up.
+* ownCloud updated to version 8.1.1 (with upgrade work-around), its memcached caching enabled.
+* When upgrading, network checks like blocked port 25 are now skipped.
+* Tweaks to the intrusion detection rules for IMAP.
+* Mail-in-a-Box's setup is a lot quieter, hiding lots of irrelevant messages.
+
+Control panel:
+
+* SSL certificate checks were failing on OVH/OpenVZ servers due to missing /dev/stdin.
+* Improve the sort order of the domains in the status checks.
+* Some links in the control panel were only working in Chrome.
+
+v0.12c (July 19, 2015)
+----------------------
+
+v0.12c was posted to work around the current Sourceforge.net outage: pyzor's remote server is now hard-coded rather than accessing a file hosted on Sourceforge, and roundcube is now downloaded from a Mail-in-a-Box mirror rather than from Sourceforge.
+
+v0.12b (July 4, 2015)
+---------------------
+
+This version corrects a minor regression in v0.12 related to creating aliases targetting multiple addresses.
+
 v0.12 (July 3, 2015)
 --------------------
 
 This is a minor update to v0.11, which was a major update. Please read v0.11's advisories.
 
-* v0.12b was posted shortly after the initial posting of v0.12 correcting a minor regression in v0.12 related to creating aliases targetting multiple addresses.
-
-* v0.12c was posted on July 19, 2015 to work around the current Sourceforge.net outage: pyzor's remote server is now hard-coded rather than accessing a file hosted on Sourceforge, and roundcube is now downloaded from a Mail-in-a-Box mirror rather than from Sourceforge.
-
 * The administrator@ alias was incorrectly created starting with v0.11. If your first install was v0.11, check that the administrator@ alias forwards mail to you.
 * Intrusion detection rules (fail2ban) are relaxed (i.e. less is blocked).
 * SSL certificates could not be installed for the new automatic 'www.' redirect domains.
@@ -18,6 +98,10 @@ This is a minor update to v0.11, which was a major update. Please read v0.11's a
 * SSL certificates with SAN domains with IDNA encoding were broken in v0.11.
 * Some IDNA functionality was using IDNA 2003 rather than IDNA 2008.
 
+v0.11b (June 29, 2015)
+----------------------
+
+v0.11b was posted shortly after the initial posting of v0.11 to correct a missing dependency for the new PPA.
 
 v0.11 (June 29, 2015)
 ---------------------
@@ -26,7 +110,6 @@ Advisories:
 * Users can no longer spoof arbitrary email addresses in outbound mail. When sending mail, the email address configured in your mail client must match the SMTP login username being used, or the email address must be an alias with the SMTP login username listed as one of the alias's targets.
 * This update replaces your DKIM signing key with a stronger key. Because of DNS caching/propagation, mail sent within a few hours after this update could be marked as spam by recipients. If you use External DNS, you will need to update your DNS records.
 * The box will now install software from a new Mail-in-a-Box PPA on Launchpad.net, where we are distributing two of our own packages: a patched postgrey and dovecot-lucene.
-* v0.11b was posted shortly after the initial posting of v0.11 correcting a missing dependency for the new PPA.
 
 Mail:
 * Greylisting will now let some reputable senders pass through immediately.

README.md

@@ -24,7 +24,7 @@ The Box
 
 Mail-in-a-Box turns a fresh Ubuntu 14.04 LTS 64-bit machine into a working mail server by installing and configuring various components.
 
-It is a one-click email appliance (see the [setup guide](https://mailinabox.email/guide.html)). There are no user-configurable setup options. It "just works".
+It is a one-click email appliance. There are no user-configurable setup options. It "just works".
 
 The components installed are:
 
@@ -32,42 +32,55 @@ The components installed are:
 * Webmail ([Roundcube](http://roundcube.net/)), static website hosting ([nginx](http://nginx.org/))
 * Spam filtering ([spamassassin](https://spamassassin.apache.org/)), greylisting ([postgrey](http://postgrey.schweikert.ch/))
 * DNS ([nsd4](http://www.nlnetlabs.nl/projects/nsd/)) with [SPF](https://en.wikipedia.org/wiki/Sender_Policy_Framework), DKIM ([OpenDKIM](http://www.opendkim.org/)), [DMARC](https://en.wikipedia.org/wiki/DMARC), [DNSSEC](https://en.wikipedia.org/wiki/DNSSEC), [DANE TLSA](https://en.wikipedia.org/wiki/DNS-based_Authentication_of_Named_Entities), and [SSHFP](https://tools.ietf.org/html/rfc4255) records automatically set
-* Firewall ([ufw](https://launchpad.net/ufw)), intrusion protection ([fail2ban](http://www.fail2ban.org/wiki/index.php/Main_Page)), system monitoring ([munin](http://munin-monitoring.org/))
+* Backups ([duplicity](http://duplicity.nongnu.org/)), firewall ([ufw](https://launchpad.net/ufw)), intrusion protection ([fail2ban](http://www.fail2ban.org/wiki/index.php/Main_Page)), system monitoring ([munin](http://munin-monitoring.org/))
 
 It also includes:
 
 * A control panel and API for adding/removing mail users, aliases, custom DNS records, etc. and detailed system monitoring.
-* Our own builds of postgrey and dovecot-lucene distributed via the [Mail-in-a-Box PPA](https://launchpad.net/~mail-in-a-box/+archive/ubuntu/ppa) on Launchpad.
+* Our own builds of postgrey (adding better whitelisting) and dovecot-lucene (faster search for mail) distributed via the [Mail-in-a-Box PPA](https://launchpad.net/~mail-in-a-box/+archive/ubuntu/ppa) on Launchpad.
 
 For more information on how Mail-in-a-Box handles your privacy, see the [security details page](security.md).
 
-The Security
+Installation
 ------------
 
-See the [security guide](security.md) for more information about the box's security configuration (TLS, password storage, etc).
+See the [setup guide](https://mailinabox.email/guide.html) for detailed, user-friendly instructions.
 
-I sign the release tags on git. To verify that a tag is signed by me, you can perform the following steps:
+For experts, start with a completely fresh (really, I mean it) Ubuntu 14.04 LTS 64-bit machine. On the machine...
 
-	# Download my PGP key.
+Clone this repository:
-	$ curl -s https://keybase.io/joshdata/key.asc | gpg --import
-	gpg: key C10BDD81: public key "Joshua Tauberer <jt@occams.info>" imported
 
-	# Clone this repository.
 	$ git clone https://github.com/mail-in-a-box/mailinabox
 	$ cd mailinabox
 
-	# Verify the tag.
+_Optional:_ Download my PGP key and then verify that the sources were signed
-	$ git verify-tag v0.12c
+by me:
+
+	$ curl -s https://keybase.io/joshdata/key.asc | gpg --import
+	gpg: key C10BDD81: public key "Joshua Tauberer <jt@occams.info>" imported
+
+	$ git verify-tag v0.14
 	gpg: Signature made ..... using RSA key ID C10BDD81
 	gpg: Good signature from "Joshua Tauberer <jt@occams.info>"
 	gpg: WARNING: This key is not certified with a trusted signature!
 	gpg:          There is no indication that the signature belongs to the owner.
 	Primary key fingerprint: 5F4C 0E73 13CC D744 693B  2AEA B920 41F4 C10B DD81
 
-	# Check out the tag.
+You'll get a lot of warnings, but that's OK. Check that the primary key fingerprint matchs the
-	$ git checkout v0.12c
+fingerprint in the key details at [https://keybase.io/joshdata](https://keybase.io/joshdata)
+and on my [personal homepage](https://razor.occams.info/). (Of course, if this repository has been compromised you can't trust these instructions.)
 
-The key ID and fingerprint above should match my [Keybase.io key](https://keybase.io/joshdata) and the fingerprint I publish on [my homepage](https://razor.occams.info/).
+Checkout the tag corresponding to the most recent release:
+
+	$ git checkout v0.14
+
+Begin the installation.
+
+	$ sudo setup/start.sh
+
+For help, DO NOT contact me directly --- I don't do tech support by email or tweet (no exceptions).
+
+Post your question on the [discussion forum](https://discourse.mailinabox.email/) instead, where me and other Mail-in-a-Box users may be able to help you.
 
 The Acknowledgements
 --------------------

conf/dovecot-mailboxes.conf

@@ -0,0 +1,63 @@
+## NOTE: This file is automatically generated by Mail-in-a-Box.
+##       Do not edit this file. It is continually updated by
+##       Mail-in-a-Box and your changes will be lost.
+##
+##       Mail-in-a-Box machines are not meant to be modified.
+##       If you modify any system configuration you are on
+##       your own --- please do not ask for help from us.
+
+namespace inbox {
+  # Automatically create & subscribe some folders.
+  # * Create and subscribe the INBOX folder.
+  # * Our sieve rule for spam expects that the Spam folder exists.
+  # * Z-Push must be configured with the same settings in conf/zpush/backend_imap.php (#580).
+
+  # MUA notes:
+  # * Roundcube will show an error if the user tries to delete a message before the Trash folder exists (#359).
+  # * K-9 mail will poll every 90 seconds if a Drafts folder does not exist.
+  # * Apple's OS X Mail app will create 'Sent Messages' if it doesn't see a folder with the \Sent flag (#571, #573) and won't be able to archive messages unless 'Archive' exists (#581).
+  # * Thunderbird's default in its UI is 'Archives' (plural) but it will configure new accounts to use whatever we say here (#581).
+
+  # auto:
+  # 'create' will automatically create this mailbox.
+  # 'subscribe' will both create and subscribe to the mailbox.
+
+  # special_use is a space separated list of IMAP SPECIAL-USE
+  # attributes as specified by RFC 6154:
+  # \All \Archive \Drafts \Flagged \Junk \Sent \Trash
+
+  mailbox INBOX {
+    auto = subscribe
+  }
+  mailbox Spam {
+    special_use = \Junk
+    auto = subscribe
+  }
+  mailbox Drafts {
+    special_use = \Drafts
+    auto = subscribe
+  }
+  mailbox Sent {
+    special_use = \Sent
+    auto = subscribe
+  }
+  mailbox Trash {
+    special_use = \Trash
+    auto = subscribe
+  }
+  mailbox Archive {
+    special_use = \Archive
+    auto = subscribe
+  }
+
+  # dovevot's standard mailboxes configuration file marks two sent folders
+  # with the \Sent attribute, just in case clients don't agree about which
+  # they're using. We'll keep that, plus add Junk as an alterative for Spam.
+  # These are not auto-created.
+  mailbox "Sent Messages" {
+    special_use = \Sent
+  }
+  mailbox Junk {
+    special_use = \Junk
+  }
+}

conf/fail2ban/jail.local

@@ -1,13 +1,11 @@
 # Fail2Ban configuration file for Mail-in-a-Box
 
-[DEFAULT]
-
-# This should ban dumb brute-force attacks, not oblivious users.
-findtime = 30
-maxretry = 20
-
 # JAILS
 
+[ssh]
+maxretry = 7
+bantime = 3600
+
 [ssh-ddos]
 enabled  = true
 
@@ -17,3 +15,5 @@ enabled  = true
 [dovecot]
 enabled = true
 filter  = dovecotimap
+findtime = 30
+maxretry = 20

conf/nginx-primaryonly.conf

@@ -50,7 +50,7 @@
 	location ~ ^/((caldav|carddav|webdav).*)$ {
 		# Z-Push doesn't like getting a redirect, and a plain rewrite didn't work either.
 		# Properly proxying like this seems to work fine.
-		proxy_pass https://$HOSTNAME/cloud/remote.php/$1;
+		proxy_pass https://127.0.0.1/cloud/remote.php/$1;
 	}
 	rewrite ^/.well-known/host-meta /cloud/public.php?service=host-meta last;
 	rewrite ^/.well-known/host-meta.json /cloud/public.php?service=host-meta-json last;

conf/nginx-ssl.conf

@@ -16,7 +16,9 @@
 #ssl_certificate_key /path/to/my-private-decrypted.key;
 
 # Tell browsers to require SSL (warning: difficult to change your mind)
-add_header Strict-Transport-Security max-age=31536000;
+# Handled by the management daemon because we can toggle this version or a
+# preload version.
+#add_header Strict-Transport-Security max-age=31536000;
 
 # Prefer certain ciphersuites, to enforce Forward Secrecy and avoid known vulnerabilities.
 # 
@@ -36,7 +38,7 @@ ssl_protocols TLSv1.2 TLSv1.1 TLSv1;
 # as recommended by http://nginx.org/en/docs/http/configuring_https_servers.html
 ssl_session_cache   shared:SSL:10m;
 ssl_session_timeout 10m;
-keepalive_timeout   70;
+#keepalive_timeout   70; # in Ubuntu 14.04/nginx 1.4.6 the default is 65, so plenty good
 
 # Buffer size of 1400 bytes fits in one MTU.
 # nginx 1.5.9+ ONLY

conf/nginx.conf

@@ -31,7 +31,6 @@ server {
 
 	ssl_certificate $SSL_CERTIFICATE;
 	ssl_certificate_key $SSL_KEY;
-	include /etc/nginx/nginx-ssl.conf;
 
 	# ADDITIONAL DIRECTIVES HERE
 }

conf/postfix_outgoing_mail_header_filters

@@ -1,7 +1,7 @@
 # Remove the first line of the Received: header. Note that we cannot fully remove the Received: header
 # because OpenDKIM requires that a header be present when signing outbound mail. The first line is
 # where the user's home IP address would be.
-/^\s*Received:[^\n]*(.*)/         REPLACE Received: from authenticated-user (unknown [127.0.0.1])$1
+/^\s*Received:[^\n]*(.*)/         REPLACE Received: from authenticated-user (PRIMARY_HOSTNAME [PUBLIC_IP])$1
 
 # Remove other typically private information.
 /^\s*User-Agent:/        IGNORE

conf/zpush/backend_caldav.php

@@ -5,10 +5,12 @@
 * Descr     :   CalDAV backend configuration file
 ************************************************/
 
-define('CALDAV_SERVER', 'https://localhost');
+define('CALDAV_PROTOCOL', 'https');
+define('CALDAV_SERVER', 'localhost');
 define('CALDAV_PORT', '443');
 define('CALDAV_PATH', '/caldav/calendars/%u/');
-define('CALDAV_PERSONAL', '');
+define('CALDAV_PERSONAL', 'PRINCIPAL');
-define('CALDAV_SUPPORTS_SYNC', true);
+define('CALDAV_SUPPORTS_SYNC', false);
+define('CALDAV_MAX_SYNC_PERIOD', 2147483647);
 
 ?>

conf/zpush/backend_imap.php

@@ -10,6 +10,20 @@ define('IMAP_PORT', 993);
 define('IMAP_OPTIONS', '/ssl/norsh/novalidate-cert');
 define('IMAP_DEFAULTFROM', '');
 
+define('SYSTEM_MIME_TYPES_MAPPING', '/etc/mime.types');
+define('IMAP_AUTOSEEN_ON_DELETE', false);
+define('IMAP_FOLDER_CONFIGURED', true);
+define('IMAP_FOLDER_PREFIX', '');
+define('IMAP_FOLDER_PREFIX_IN_INBOX', false);
+// see our conf/dovecot-mailboxes.conf file for IMAP special flags settings
+define('IMAP_FOLDER_INBOX', 'INBOX');
+define('IMAP_FOLDER_SENT', 'SENT');
+define('IMAP_FOLDER_DRAFT', 'DRAFTS');
+define('IMAP_FOLDER_TRASH', 'TRASH');
+define('IMAP_FOLDER_SPAM', 'SPAM');
+define('IMAP_FOLDER_ARCHIVE', 'ARCHIVE');
+
+
 // not used
 define('IMAP_FROM_SQL_DSN', '');
 define('IMAP_FROM_SQL_USER', '');
@@ -28,12 +42,6 @@ define('IMAP_FROM_LDAP_FIELDS', serialize(array('givenname', 'sn', 'mail')));
 define('IMAP_FROM_LDAP_FROM', '#givenname #sn <#mail>');
 
 
-// copy outgoing mail to this folder. If not set z-push will try the default folders
-define('IMAP_SENTFOLDER', '');
-define('IMAP_INLINE_FORWARD', true);
-define('IMAP_EXCLUDED_FOLDERS', '');
-define('IMAP_SMTP_METHOD', 'sendmail');
-
 global $imap_smtp_params;
 $imap_smtp_params = array('host' => 'ssl://localhost', 'port' => 587, 'auth' => true, 'username' => 'imap_username', 'password' => 'imap_password');
 

management/backup.py

@@ -10,20 +10,27 @@
 
 import os, os.path, shutil, glob, re, datetime
 import dateutil.parser, dateutil.relativedelta, dateutil.tz
+import rtyaml
 
 from utils import exclusive_process, load_environment, shell, wait_for_service
 
-# Destroy backups when the most recent increment in the chain
-# that depends on it is this many days old.
-keep_backups_for_days = 3
-
 def backup_status(env):
-	# What is the current status of backups?
+	# Root folder
-	# Loop through all of the files in STORAGE_ROOT/backup/encrypted to
+	backup_root = os.path.join(env["STORAGE_ROOT"], 'backup')
-	# get a list of all of the backups taken and sum up file sizes to
-	# see how large the storage is.
 
+	# What is the current status of backups?
+	# Query duplicity to get a list of all backups.
+	# Use the number of volumes to estimate the size.
+	config = get_backup_config(env)
 	now = datetime.datetime.now(dateutil.tz.tzlocal())
+
+	# Are backups dissbled?
+	if config["target"] == "off":
+		return { }
+
+	backups = { }
+	backup_cache_dir = os.path.join(backup_root, 'cache')
+
 	def reldate(date, ref, clip):
 		if ref < date: return clip
 		rd = dateutil.relativedelta.relativedelta(ref, date)
@@ -34,27 +41,43 @@ def backup_status(env):
 		if rd.days == 1: return "%d day, %d hours" % (rd.days, rd.hours)
 		return "%d hours, %d minutes" % (rd.hours, rd.minutes)
 
-	backups = { }
+	# Get duplicity collection status and parse for a list of backups.
-	backup_root = os.path.join(env["STORAGE_ROOT"], 'backup')
+	def parse_line(line):
-	backup_dir = os.path.join(backup_root, 'encrypted')
+		keys = line.strip().split()
-	os.makedirs(backup_dir, exist_ok=True) # os.listdir fails if directory does not exist
+		date = dateutil.parser.parse(keys[1])
-	for fn in os.listdir(backup_dir):
+		return {
+			"date": keys[1],
+			"date_str": date.strftime("%x %X"),
+			"date_delta": reldate(date, now, "the future?"),
+			"full": keys[0] == "full",
+			"size": 0, # collection-status doesn't give us the size
+			"volumes": keys[2], # number of archive volumes for this backup (not really helpful)
+		}
+	code, collection_status = shell('check_output', [
+		"/usr/bin/duplicity",
+		"collection-status",
+		"--archive-dir", backup_cache_dir,
+		"--gpg-options", "--cipher-algo=AES256",
+		"--log-fd", "1",
+		config["target"],
+		],
+		get_env(env),
+		trap=True)
+	if code != 0:
+		# Command failed. This is likely due to an improperly configured remote
+		# destination for the backups.
+		return { }
+	for line in collection_status.split('\n'):
+		if line.startswith(" full") or line.startswith(" inc"):
+			backup = parse_line(line)
+			backups[backup["date"]] = backup
+
+	# Look at the target to get the sizes of each of the backups. There is more than one file per backup.
+	for fn, size in list_target_files(config):
 		m = re.match(r"duplicity-(full|full-signatures|(inc|new-signatures)\.(?P<incbase>\d+T\d+Z)\.to)\.(?P<date>\d+T\d+Z)\.", fn)
-		if not m: raise ValueError(fn)
+		if not m: continue # not a part of a current backup chain
-
 		key = m.group("date")
-		if key not in backups:
+		backups[key]["size"] += size
-			date = dateutil.parser.parse(m.group("date"))
-			backups[key] = {
-				"date": m.group("date"),
-				"date_str": date.strftime("%x %X"),
-				"date_delta": reldate(date, now, "the future?"),
-				"full": m.group("incbase") is None,
-				"previous": m.group("incbase"),
-				"size": 0,
-			}
-
-		backups[key]["size"] += os.path.getsize(os.path.join(backup_dir, fn))
 
 	# Ensure the rows are sorted reverse chronologically.
 	# This is relied on by should_force_full() and the next step.
@@ -79,11 +102,11 @@ def backup_status(env):
 	# when the threshold is met.
 	deleted_in = None
 	if incremental_count > 0 and first_full_size is not None:
-		deleted_in = "approx. %d days" % round(keep_backups_for_days + (.5 * first_full_size - incremental_size) / (incremental_size/incremental_count) + .5)
+		deleted_in = "approx. %d days" % round(config["min_age_in_days"] + (.5 * first_full_size - incremental_size) / (incremental_size/incremental_count) + .5)
 
 	# When will a backup be deleted?
 	saw_full = False
-	days_ago = now - datetime.timedelta(days=keep_backups_for_days)
+	days_ago = now - datetime.timedelta(days=config["min_age_in_days"])
 	for bak in backups:
 		if deleted_in:
 			# Subsequent backups are deleted when the most recent increment
@@ -99,8 +122,6 @@ def backup_status(env):
 			bak["deleted_in"] = deleted_in
 
 	return {
-		"directory": backup_dir,
-		"encpwfile": os.path.join(backup_root, 'secret_key.txt'),
 		"tz": now.tzname(),
 		"backups": backups,
 	}
@@ -124,15 +145,48 @@ def should_force_full(env):
 		# (I love for/else blocks. Here it's just to show off.)
 		return True
 
+def get_passphrase(env):
+	# Get the encryption passphrase. secret_key.txt is 2048 random
+	# bits base64-encoded and with line breaks every 65 characters.
+	# gpg will only take the first line of text, so sanity check that
+	# that line is long enough to be a reasonable passphrase. It
+	# only needs to be 43 base64-characters to match AES256's key
+	# length of 32 bytes.
+	backup_root = os.path.join(env["STORAGE_ROOT"], 'backup')
+	with open(os.path.join(backup_root, 'secret_key.txt')) as f:
+		passphrase = f.readline().strip()
+	if len(passphrase) < 43: raise Exception("secret_key.txt's first line is too short!")
+	
+	return passphrase
+
+def get_env(env):
+	config = get_backup_config(env)
+	
+	env = { "PASSPHRASE" : get_passphrase(env) }
+	
+	if get_target_type(config) == 's3':
+		env["AWS_ACCESS_KEY_ID"] = config["target_user"]
+		env["AWS_SECRET_ACCESS_KEY"] = config["target_pass"]
+	
+	return env
+	
+def get_target_type(config):
+	protocol = config["target"].split(":")[0]
+	return protocol
+	
 def perform_backup(full_backup):
 	env = load_environment()
 
 	exclusive_process("backup")
-
+	config = get_backup_config(env)
 	backup_root = os.path.join(env["STORAGE_ROOT"], 'backup')
 	backup_cache_dir = os.path.join(backup_root, 'cache')
 	backup_dir = os.path.join(backup_root, 'encrypted')
 
+	# Are backups dissbled?
+	if config["target"] == "off":
+		return
+
 	# In an older version of this script, duplicity was called
 	# such that it did not encrypt the backups it created (in
 	# backup/duplicity), and instead openssl was called separately
@@ -169,17 +223,6 @@ def perform_backup(full_backup):
 	shell('check_call', ["/usr/sbin/service", "dovecot", "stop"])
 	shell('check_call', ["/usr/sbin/service", "postfix", "stop"])
 
-	# Get the encryption passphrase. secret_key.txt is 2048 random
-	# bits base64-encoded and with line breaks every 65 characters.
-	# gpg will only take the first line of text, so sanity check that
-	# that line is long enough to be a reasonable passphrase. It
-	# only needs to be 43 base64-characters to match AES256's key
-	# length of 32 bytes.
-	with open(os.path.join(backup_root, 'secret_key.txt')) as f:
-		passphrase = f.readline().strip()
-	if len(passphrase) < 43: raise Exception("secret_key.txt's first line is too short!")
-	env_with_passphrase = { "PASSPHRASE" : passphrase }
-
 	# Run a backup of STORAGE_ROOT (but excluding the backups themselves!).
 	# --allow-source-mismatch is needed in case the box's hostname is changed
 	# after the first backup. See #396.
@@ -192,10 +235,10 @@ def perform_backup(full_backup):
 			"--volsize", "250",
 			"--gpg-options", "--cipher-algo=AES256",
 			env["STORAGE_ROOT"],
-			"file://" + backup_dir,
+			config["target"],
-                        "--allow-source-mismatch"
+			"--allow-source-mismatch"
 			],
-			env_with_passphrase)
+			get_env(env))
 	finally:
 		# Start services again.
 		shell('check_call', ["/usr/sbin/service", "dovecot", "start"])
@@ -210,12 +253,12 @@ def perform_backup(full_backup):
 	shell('check_call', [
 		"/usr/bin/duplicity",
 		"remove-older-than",
-		"%dD" % keep_backups_for_days,
+		"%dD" % config["min_age_in_days"],
 		"--archive-dir", backup_cache_dir,
 		"--force",
-		"file://" + backup_dir
+		config["target"]
 		],
-		env_with_passphrase)
+		get_env(env))
 
 	# From duplicity's manual:
 	# "This should only be necessary after a duplicity session fails or is
@@ -227,13 +270,14 @@ def perform_backup(full_backup):
 		"cleanup",
 		"--archive-dir", backup_cache_dir,
 		"--force",
-		"file://" + backup_dir
+		config["target"]
 		],
-		env_with_passphrase)
+		get_env(env))
 
 	# Change ownership of backups to the user-data user, so that the after-bcakup
 	# script can access them.
-	shell('check_call', ["/bin/chown", "-R", env["STORAGE_USER"], backup_dir])
+	if get_target_type(config) == 'file':
+		shell('check_call', ["/bin/chown", "-R", env["STORAGE_USER"], backup_dir])
 
 	# Execute a post-backup script that does the copying to a remote server.
 	# Run as the STORAGE_USER user, not as root. Pass our settings in
@@ -241,7 +285,7 @@ def perform_backup(full_backup):
 	post_script = os.path.join(backup_root, 'after-backup')
 	if os.path.exists(post_script):
 		shell('check_call',
-			['su', env['STORAGE_USER'], '-c', post_script],
+			['su', env['STORAGE_USER'], '-c', post_script, config["target"]],
 			env=env)
 
 	# Our nightly cron job executes system status checks immediately after this
@@ -254,9 +298,9 @@ def perform_backup(full_backup):
 def run_duplicity_verification():
 	env = load_environment()
 	backup_root = os.path.join(env["STORAGE_ROOT"], 'backup')
+	config = get_backup_config(env)
 	backup_cache_dir = os.path.join(backup_root, 'cache')
-	backup_dir = os.path.join(backup_root, 'encrypted')
+
-	env_with_passphrase = { "PASSPHRASE" : open(os.path.join(backup_root, 'secret_key.txt')).read() }
 	shell('check_call', [
 		"/usr/bin/duplicity",
 		"--verbosity", "info",
@@ -264,9 +308,125 @@ def run_duplicity_verification():
 		"--compare-data",
 		"--archive-dir", backup_cache_dir,
 		"--exclude", backup_root,
-		"file://" + backup_dir,
+		config["target"],
 		env["STORAGE_ROOT"],
-	], env_with_passphrase)
+	], get_env(env))
+
+def list_target_files(config):
+	import urllib.parse
+	try:
+		p = urllib.parse.urlparse(config["target"])
+	except ValueError:
+		return "invalid target"
+
+	if p.scheme == "file":
+		return [(fn, os.path.getsize(os.path.join(p.path, fn))) for fn in os.listdir(p.path)]
+
+	elif p.scheme == "s3":
+		# match to a Region
+		import boto.s3
+		from boto.exception import BotoServerError
+		for region in boto.s3.regions():
+			if region.endpoint == p.hostname:
+				break
+		else:
+			raise ValueError("Invalid S3 region/host.")
+
+		bucket = p.path[1:].split('/')[0]
+		path = '/'.join(p.path[1:].split('/')[1:]) + '/'
+
+		# If no prefix is specified, set the path to '', otherwise boto won't list the files
+		if path == '/':
+			path = ''
+
+		if bucket == "":
+			raise ValueError("Enter an S3 bucket name.")
+
+		# connect to the region & bucket
+		try:
+			conn = region.connect(aws_access_key_id=config["target_user"], aws_secret_access_key=config["target_pass"])
+			bucket = conn.get_bucket(bucket)
+		except BotoServerError as e:
+			if e.status == 403:
+				raise ValueError("Invalid S3 access key or secret access key.")
+			elif e.status == 404:
+				raise ValueError("Invalid S3 bucket name.")
+			elif e.status == 301:
+				raise ValueError("Incorrect region for this bucket.")
+			raise ValueError(e.reason)
+
+		return [(key.name[len(path):], key.size) for key in bucket.list(prefix=path)]
+
+	else:
+		raise ValueError(config["target"])
+
+
+def backup_set_custom(env, target, target_user, target_pass, min_age):
+	config = get_backup_config(env, for_save=True)
+	
+	# min_age must be an int
+	if isinstance(min_age, str):
+		min_age = int(min_age)
+
+	config["target"] = target
+	config["target_user"] = target_user
+	config["target_pass"] = target_pass
+	config["min_age_in_days"] = min_age
+
+	# Validate.
+	try:
+		if config["target"] not in ("off", "local"):
+			# these aren't supported by the following function, which expects a full url in the target key,
+			# which is what is there except when loading the config prior to saving
+			list_target_files(config)
+	except ValueError as e:
+		return str(e)
+	
+	write_backup_config(env, config)
+
+	return "OK"
+	
+def get_backup_config(env, for_save=False, for_ui=False):
+	backup_root = os.path.join(env["STORAGE_ROOT"], 'backup')
+
+	# Defaults.
+	config = {
+		"min_age_in_days": 3,
+		"target": "local",
+	}
+
+	# Merge in anything written to custom.yaml.
+	try:
+		custom_config = rtyaml.load(open(os.path.join(backup_root, 'custom.yaml')))
+		if not isinstance(custom_config, dict): raise ValueError() # caught below
+		config.update(custom_config)
+	except:
+		pass
+
+	# When updating config.yaml, don't do any further processing on what we find.
+	if for_save:
+		return config
+
+	# When passing this back to the admin to show the current settings, do not include
+	# authentication details. The user will have to re-enter it.
+	if for_ui:
+		for field in ("target_user", "target_pass"):
+			if field in config:
+				del config[field]
+
+	# helper fields for the admin
+	config["file_target_directory"] = os.path.join(backup_root, 'encrypted')
+	config["enc_pw_file"] = os.path.join(backup_root, 'secret_key.txt')
+	if config["target"] == "local":
+		# Expand to the full URL.
+		config["target"] = "file://" + config["file_target_directory"]
+
+	return config
+
+def write_backup_config(env, newconfig):
+	backup_root = os.path.join(env["STORAGE_ROOT"], 'backup')
+	with open(os.path.join(backup_root, 'custom.yaml'), "w") as f:
+		f.write(rtyaml.dump(newconfig))
 
 if __name__ == "__main__":
 	import sys
@@ -274,6 +434,7 @@ if __name__ == "__main__":
 		# Run duplicity's verification command to check a) the backup files
 		# are readable, and b) report if they are up to date.
 		run_duplicity_verification()
+
 	else:
 		# Perform a backup. Add --full to force a full backup rather than
 		# possibly performing an incremental backup.

management/daemon.py

@@ -45,7 +45,7 @@ def authorized_personnel_only(viewfunc):
 
 		# Authorized to access an API view?
 		if "admin" in privs:
-			# Call view func.	
+			# Call view func.
 			return viewfunc(*args, **kwargs)
 		elif not error:
 			error = "You are not an administrator."
@@ -90,13 +90,19 @@ def json_response(data):
 def index():
 	# Render the control panel. This route does not require user authentication
 	# so it must be safe!
+
 	no_users_exist = (len(get_mail_users(env)) == 0)
 	no_admins_exist = (len(get_admins(env)) == 0)
+
+	import boto.s3
+	backup_s3_hosts = [(r.name, r.endpoint) for r in boto.s3.regions()]
+
 	return render_template('index.html',
 		hostname=env['PRIMARY_HOSTNAME'],
 		storage_root=env['STORAGE_ROOT'],
 		no_users_exist=no_users_exist,
 		no_admins_exist=no_admins_exist,
+		backup_s3_hosts=backup_s3_hosts,
 	)
 
 @app.route('/me')
@@ -179,14 +185,15 @@ def mail_aliases():
 	if request.args.get("format", "") == "json":
 		return json_response(get_mail_aliases_ex(env))
 	else:
-		return "".join(x+"\t"+y+"\n" for x, y in get_mail_aliases(env))
+		return "".join(address+"\t"+receivers+"\t"+(senders or "")+"\n" for address, receivers, senders in get_mail_aliases(env))
 
 @app.route('/mail/aliases/add', methods=['POST'])
 @authorized_personnel_only
 def mail_aliases_add():
 	return add_mail_alias(
-		request.form.get('source', ''),
+		request.form.get('address', ''),
-		request.form.get('destination', ''),
+		request.form.get('forwards_to', ''),
+		request.form.get('permitted_senders', ''),
 		env,
 		update_if_exists=(request.form.get('update_if_exists', '') == '1')
 		)
@@ -194,7 +201,7 @@ def mail_aliases_add():
 @app.route('/mail/aliases/remove', methods=['POST'])
 @authorized_personnel_only
 def mail_aliases_remove():
-	return remove_mail_alias(request.form.get('source', ''), env)
+	return remove_mail_alias(request.form.get('address', ''), env)
 
 @app.route('/mail/domains')
 @authorized_personnel_only
@@ -222,14 +229,14 @@ def dns_update():
 @authorized_personnel_only
 def dns_get_secondary_nameserver():
 	from dns_update import get_custom_dns_config, get_secondary_dns
-	return json_response({ "hostname": get_secondary_dns(get_custom_dns_config(env)) })
+	return json_response({ "hostnames": get_secondary_dns(get_custom_dns_config(env), mode=None) })
 
 @app.route('/dns/secondary-nameserver', methods=['POST'])
 @authorized_personnel_only
 def dns_set_secondary_nameserver():
 	from dns_update import set_secondary_dns
 	try:
-		return set_secondary_dns(request.form.get('hostname'), env)
+		return set_secondary_dns([ns.strip() for ns in re.split(r"[, ]+", request.form.get('hostnames') or "") if ns.strip() != ""], env)
 	except ValueError as e:
 		return (str(e), 400)
 
@@ -283,7 +290,7 @@ def dns_set_record(qname, rtype="A"):
 				# make this action set (replace all records for this
 				# qname-rtype pair) rather than add (add a new record).
 				action = "set"
-		
+
 		elif request.method == "DELETE":
 			if value == '':
 				# Delete all records for this qname-type pair.
@@ -311,9 +318,9 @@ def dns_get_dump():
 @app.route('/ssl/csr/<domain>', methods=['POST'])
 @authorized_personnel_only
 def ssl_get_csr(domain):
-	from web_update import get_domain_ssl_files, create_csr
+	from web_update import create_csr
-	ssl_key, ssl_certificate, ssl_via = get_domain_ssl_files(domain, env)
+	ssl_private_key = os.path.join(os.path.join(env["STORAGE_ROOT"], 'ssl', 'ssl_private_key.pem'))
-	return create_csr(domain, ssl_key, env)
+	return create_csr(domain, ssl_private_key, env)
 
 @app.route('/ssl/install', methods=['POST'])
 @authorized_personnel_only
@@ -402,6 +409,37 @@ def backup_status():
 	from backup import backup_status
 	return json_response(backup_status(env))
 
+@app.route('/system/backup/config', methods=["GET"])
+@authorized_personnel_only
+def backup_get_custom():
+	from backup import get_backup_config
+	return json_response(get_backup_config(env, for_ui=True))
+
+@app.route('/system/backup/config', methods=["POST"])
+@authorized_personnel_only
+def backup_set_custom():
+	from backup import backup_set_custom
+	return json_response(backup_set_custom(env,
+		request.form.get('target', ''),
+		request.form.get('target_user', ''),
+		request.form.get('target_pass', ''),
+		request.form.get('min_age', '')
+	))
+
+@app.route('/system/privacy', methods=["GET"])
+@authorized_personnel_only
+def privacy_status_get():
+	config = utils.load_settings(env)
+	return json_response(config.get("privacy", True))
+
+@app.route('/system/privacy', methods=["POST"])
+@authorized_personnel_only
+def privacy_status_set():
+	config = utils.load_settings(env)
+	config["privacy"] = (request.form.get('value') == "private")
+	utils.write_settings(config, env)
+	return "OK"
+
 # MUNIN
 
 @app.route('/munin/')
@@ -432,4 +470,3 @@ if __name__ == '__main__':
 
 	# Start the application server. Listens on 127.0.0.1 (IPv4 only).
 	app.run(port=10222)
-

management/dns_update.py

@@ -120,6 +120,10 @@ def do_dns_update(env, force=False):
 			# If this is the only thing that changed?
 			updated_domains.append("OpenDKIM configuration")
 
+	# Clear bind9's DNS cache so our own DNS resolver is up to date.
+	# (ignore errors with trap=True)
+	shell('check_call', ["/usr/sbin/rndc", "flush"], trap=True)
+
 	if len(updated_domains) == 0:
 		# if nothing was updated (except maybe OpenDKIM's files), don't show any output
 		return ""
@@ -144,8 +148,11 @@ def build_zone(domain, all_domains, additional_records, www_redirect_domains, en
 		records.append((None,  "NS",  "ns1.%s." % env["PRIMARY_HOSTNAME"], False))
 
 		# Define ns2.PRIMARY_HOSTNAME or whatever the user overrides.
-		secondary_ns = get_secondary_dns(additional_records) or ("ns2." + env["PRIMARY_HOSTNAME"])
+		# User may provide one or more additional nameservers
-		records.append((None,  "NS", secondary_ns+'.', False))
+		secondary_ns_list = get_secondary_dns(additional_records, mode="NS") \
+			or ["ns2." + env["PRIMARY_HOSTNAME"]] 
+		for secondary_ns in secondary_ns_list:
+			records.append((None,  "NS", secondary_ns+'.', False))
 
 
 	# In PRIMARY_HOSTNAME...
@@ -167,6 +174,9 @@ def build_zone(domain, all_domains, additional_records, www_redirect_domains, en
 		# Add a DANE TLSA record for SMTP.
 		records.append(("_25._tcp", "TLSA", build_tlsa_record(env), "Recommended when DNSSEC is enabled. Advertises to mail servers connecting to the box that mandatory encryption should be used."))
 
+		# Add a DANE TLSA record for HTTPS, which some browser extensions might make use of.
+		records.append(("_443._tcp", "TLSA", build_tlsa_record(env), "Optional. When DNSSEC is enabled, provides out-of-band HTTPS certificate validation for a few web clients that support it."))
+
 		# Add a SSHFP records to help SSH key validation. One per available SSH key on this system.
 		for value in build_sshfp_records():
 			records.append((None, "SSHFP", value, "Optional. Provides an out-of-band method for verifying an SSH key before connecting. Use 'VerifyHostKeyDNS yes' (or 'VerifyHostKeyDNS ask') when connecting with ssh."))
@@ -462,17 +472,10 @@ zone:
 	zonefile: %s
 """ % (domain, zonefile)
 
-		# If a custom secondary nameserver has been set, allow zone transfers
+		# If custom secondary nameservers have been set, allow zone transfers
-		# and notifies to that nameserver.
+		# and notifies to them.
-		if get_secondary_dns(additional_records):
+		for ipaddr in get_secondary_dns(additional_records, mode="xfr"):
-			# Get the IP address of the nameserver by resolving it.
+			nsdconf += "\n\tnotify: %s NOKEY\n\tprovide-xfr: %s NOKEY\n" % (ipaddr, ipaddr)
-			hostname = get_secondary_dns(additional_records)
-			resolver = dns.resolver.get_default_resolver()
-			response = dns.resolver.query(hostname+'.', "A")
-			ipaddr = str(response[0])
-			nsdconf += """\tnotify: %s NOKEY
-	provide-xfr: %s NOKEY
-""" % (ipaddr, ipaddr)
 
 	# Check if the file is changing. If it isn't changing,
 	# return False to flag that no change was made.
@@ -785,38 +788,75 @@ def set_custom_dns_record(qname, rtype, value, action, env):
 	if made_change:
 		# serialize & save
 		write_custom_dns_config(newconfig, env)
-
 	return made_change
 
 ########################################################################
 
-def get_secondary_dns(custom_dns):
+def get_secondary_dns(custom_dns, mode=None):
+	resolver = dns.resolver.get_default_resolver()
+
+	values = []
 	for qname, rtype, value in custom_dns:
-		if qname == "_secondary_nameserver":
+		if qname != '_secondary_nameserver': continue
-			return value
+		for hostname in value.split(" "):
-	return None
+			hostname = hostname.strip()
+			if mode == None:
+				# Just return the setting.
+				values.append(hostname)
+				continue
 
-def set_secondary_dns(hostname, env):
+			# This is a hostname. Before including in zone xfr lines,
+			# resolve to an IP address. Otherwise just return the hostname.
+			if not hostname.startswith("xfr:"):
+				if mode == "xfr":
+					response = dns.resolver.query(hostname+'.', "A")
+					hostname = str(response[0])
+				values.append(hostname)
 
-	if hostname in (None, ""):
+			# This is a zone-xfer-only IP address. Do not return if
-		# Clear.
+			# we're querying for NS record hostnames. Only return if
-		set_custom_dns_record("_secondary_nameserver", "A", None, "set", env)
+			# we're querying for zone xfer IP addresses - return the
-	else:
+			# IP address.
-		# Validate.
+			elif mode == "xfr":
-		hostname = hostname.strip().lower()
+				values.append(hostname[4:])
+
+	return values
+
+def set_secondary_dns(hostnames, env):
+	if len(hostnames) > 0:
+		# Validate that all hostnames are valid and that all zone-xfer IP addresses are valid.
 		resolver = dns.resolver.get_default_resolver()
-		try:
+		for item in hostnames:
-			response = dns.resolver.query(hostname, "A")
+			if not item.startswith("xfr:"):
-		except (dns.resolver.NoNameservers, dns.resolver.NXDOMAIN, dns.resolver.NoAnswer):
+				# Resolve hostname.
-			raise ValueError("Could not resolve the IP address of %s." % hostname)
+				try:
+					response = dns.resolver.query(item, "A")
+				except (dns.resolver.NoNameservers, dns.resolver.NXDOMAIN, dns.resolver.NoAnswer):
+					raise ValueError("Could not resolve the IP address of %s." % item)
+			else:
+				# Validate IP address.
+				try:
+					v = ipaddress.ip_address(item[4:]) # raises a ValueError if there's a problem
+					if not isinstance(v, ipaddress.IPv4Address): raise ValueError("That's an IPv6 address.")
+				except ValueError:
+					raise ValueError("'%s' is not an IPv4 address." % item[4:])
 
 		# Set.
-		set_custom_dns_record("_secondary_nameserver", "A", hostname, "set", env)
+		set_custom_dns_record("_secondary_nameserver", "A", " ".join(hostnames), "set", env)
+	else:
+		# Clear.
+		set_custom_dns_record("_secondary_nameserver", "A", None, "set", env)
 
 	# Apply.
 	return do_dns_update(env)
 
 
+def get_custom_dns_record(custom_dns, qname, rtype):
+	for qname1, rtype1, value in custom_dns:
+		if qname1 == qname and rtype1 == rtype:
+			return value
+	return None
+
 ########################################################################
 
 def justtestingdotemail(domain, records):

management/mail_log.py

@@ -1,5 +1,6 @@
 #!/usr/bin/python3
 
+from collections import defaultdict
 import re, os.path
 import dateutil.parser
 
@@ -12,6 +13,7 @@ def scan_mail_log(logger, env):
 		"imap-logins": { },
 		"postgrey": { },
 		"rejected-mail": { },
+		"activity-by-hour": { "imap-logins": defaultdict(int), "smtp-sends": defaultdict(int) },
 	}
 
 	collector["real_mail_addresses"] = set(mailconfig.get_mail_users(env)) | set(alias[0] for alias in mailconfig.get_mail_aliases(env))
@@ -45,6 +47,10 @@ def scan_mail_log(logger, env):
 			for date, sender, message in collector["rejected-mail"][k]:
 				logger.print_line(k + "\t" + str(date) + "\t" + sender + "\t" + message)
 
+	logger.add_heading("Activity by Hour")
+	for h in range(24):
+		logger.print_line("%d\t%d\t%d" % (h, collector["activity-by-hour"]["imap-logins"][h], collector["activity-by-hour"]["smtp-sends"][h] ))
+
 	if len(collector["other-services"]) > 0:
 		logger.add_heading("Other")
 		logger.print_block("Unrecognized services in the log: " + ", ".join(collector["other-services"]))
@@ -65,6 +71,9 @@ def scan_mail_log_line(line, collector):
 	elif service == "postfix/smtpd":
 		scan_postfix_smtpd_line(date, log, collector)
 
+	elif service == "postfix/submission/smtpd":
+		scan_postfix_submission_line(date, log, collector)
+
 	elif service in ("postfix/qmgr", "postfix/pickup", "postfix/cleanup",
 			"postfix/scache", "spampd", "postfix/anvil", "postfix/master",
 			"opendkim", "postfix/lmtp", "postfix/tlsmgr"):
@@ -80,6 +89,7 @@ def scan_dovecot_line(date, log, collector):
 		login, ip = m.group(1), m.group(2)
 		if ip != "127.0.0.1": # local login from webmail/zpush
 			collector["imap-logins"].setdefault(login, {})[ip] = date
+		collector["activity-by-hour"]["imap-logins"][date.hour] += 1
 
 def scan_postgrey_line(date, log, collector):
 	m = re.match("action=(greylist|pass), reason=(.*?), (?:delay=\d+, )?client_name=(.*), client_address=(.*), sender=(.*), recipient=(.*)", log)
@@ -114,6 +124,11 @@ def scan_postfix_smtpd_line(date, log, collector):
 
 			collector["rejected-mail"].setdefault(recipient, []).append( (date, sender, message) )
 
+def scan_postfix_submission_line(date, log, collector):
+	m = re.match("([A-Z0-9]+): client=(\S+), sasl_method=PLAIN, sasl_username=(\S+)", log)
+	if m:
+		procid, client, user = m.groups()
+		collector["activity-by-hour"]["smtp-sends"][date.hour] += 1
 
 if __name__ == "__main__":
 	from status_checks import ConsoleOutput

management/mailconfig.py

@@ -58,7 +58,7 @@ def sanitize_idn_email_address(email):
 	except (ValueError, idna.IDNAError):
 		# ValueError: String does not have a single @-sign, so it is not
 		# a valid email address. IDNAError: Domain part is not IDNA-valid.
-		# Validation is not this function's job, so return value unchanged. 
+		# Validation is not this function's job, so return value unchanged.
 		# If there are non-ASCII characters it will be filtered out by
 		# validate_email.
 		return email
@@ -181,13 +181,13 @@ def get_admins(env):
 	return users
 
 def get_mail_aliases(env):
-	# Returns a sorted list of tuples of (alias, forward-to string).
+	# Returns a sorted list of tuples of (address, forward-tos, permitted-senders).
 	c = open_database(env)
-	c.execute('SELECT source, destination FROM aliases')
+	c.execute('SELECT source, destination, permitted_senders FROM aliases')
-	aliases = { row[0]: row[1] for row in c.fetchall() } # make dict
+	aliases = { row[0]: row for row in c.fetchall() } # make dict
 
 	# put in a canonical order: sort by domain, then by email address lexicographically
-	aliases = [ (source, aliases[source]) for source in utils.sort_email_addresses(aliases.keys(), env) ]
+	aliases = [ aliases[address] for address in utils.sort_email_addresses(aliases.keys(), env) ]
 	return aliases
 
 def get_mail_aliases_ex(env):
@@ -199,9 +199,10 @@ def get_mail_aliases_ex(env):
 	#     domain: "domain.tld",
 	#     alias: [
 	#       {
-	#         source: "name@domain.tld", # IDNA-encoded
+	#         address: "name@domain.tld", # IDNA-encoded
-	#         source_display: "name@domain.tld", # full Unicode
+	#         address_display: "name@domain.tld", # full Unicode
-	#         destination: ["target1@domain.com", "target2@domain.com", ...],
+	#         forwards_to: ["user1@domain.com", "receiver-only1@domain.com", ...],
+	#         permitted_senders: ["user1@domain.com", "sender-only1@domain.com", ...] OR null,
 	#         required: True|False
 	#       },
 	#       ...
@@ -212,10 +213,10 @@ def get_mail_aliases_ex(env):
 
 	required_aliases = get_required_aliases(env)
 	domains = {}
-	for source, destination in get_mail_aliases(env):
+	for address, forwards_to, permitted_senders in get_mail_aliases(env):
 		# get alias info
-		domain = get_domain(source)
+		domain = get_domain(address)
-		required = (source in required_aliases)
+		required = (address in required_aliases)
 
 		# add to list
 		if not domain in domains:
@@ -224,33 +225,40 @@ def get_mail_aliases_ex(env):
 				"aliases": [],
 			}
 		domains[domain]["aliases"].append({
-			"source": source,
+			"address": address,
-			"source_display": prettify_idn_email_address(source),
+			"address_display": prettify_idn_email_address(address),
-			"destination": [prettify_idn_email_address(d.strip()) for d in destination.split(",")],
+			"forwards_to": [prettify_idn_email_address(r.strip()) for r in forwards_to.split(",")],
+			"permitted_senders": [prettify_idn_email_address(s.strip()) for s in permitted_senders.split(",")] if permitted_senders is not None else None,
 			"required": required,
 		})
 
 	# Sort domains.
 	domains = [domains[domain] for domain in utils.sort_domains(domains.keys(), env)]
 
-	# Sort aliases within each domain first by required-ness then lexicographically by source address.
+	# Sort aliases within each domain first by required-ness then lexicographically by address.
 	for domain in domains:
-		domain["aliases"].sort(key = lambda alias : (alias["required"], alias["source"]))
+		domain["aliases"].sort(key = lambda alias : (alias["required"], alias["address"]))
 	return domains
 
 def get_domain(emailaddr, as_unicode=True):
 	# Gets the domain part of an email address. Turns IDNA
 	# back to Unicode for display.
 	ret = emailaddr.split('@', 1)[1]
-	if as_unicode: ret = idna.decode(ret.encode('ascii'))
+	if as_unicode:
+		try:
+			ret = idna.decode(ret.encode('ascii'))
+		except (ValueError, UnicodeError, idna.IDNAError):
+			# Looks like we have an invalid email address in
+			# the database. Now is not the time to complain.
+			pass
 	return ret
 
 def get_mail_domains(env, filter_aliases=lambda alias : True):
 	# Returns the domain names (IDNA-encoded) of all of the email addresses
 	# configured on the system.
 	return set(
-		   [get_domain(addr, as_unicode=False) for addr in get_mail_users(env)]
+		   [get_domain(login, as_unicode=False) for login in get_mail_users(env)]
-		 + [get_domain(source, as_unicode=False) for source, target in get_mail_aliases(env) if filter_aliases((source, target)) ]
+		 + [get_domain(address, as_unicode=False) for address, *_ in get_mail_aliases(env) if filter_aliases(address) ]
 		 )
 
 def add_mail_user(email, pw, privs, env):
@@ -295,25 +303,6 @@ def add_mail_user(email, pw, privs, env):
 	# write databasebefore next step
 	conn.commit()
 
-	# Create & subscribe the user's INBOX, Trash, Spam, and Drafts folders.
-	# * Our sieve rule for spam expects that the Spam folder exists.
-	# * Roundcube will show an error if the user tries to delete a message before the Trash folder exists (#359).
-	# * K-9 mail will poll every 90 seconds if a Drafts folder does not exist, so create it
-	#   to avoid unnecessary polling.
-
-	# Check if the mailboxes exist before creating them. When creating a user that had previously
-	# been deleted, the mailboxes will still exist because they are still on disk.
-	try:
-		existing_mboxes = utils.shell('check_output', ["doveadm", "mailbox", "list", "-u", email, "-8"], capture_stderr=True).split("\n")
-	except subprocess.CalledProcessError as e:
-		c.execute("DELETE FROM users WHERE email=?", (email,))
-		conn.commit()
-		return ("Failed to initialize the user: " + e.output.decode("utf8"), 400)
-
-	for folder in ("INBOX", "Trash", "Spam", "Drafts"):
-		if folder not in existing_mboxes:
-			utils.shell('check_call', ["doveadm", "mailbox", "create", "-u", email, "-s", folder])
-
 	# Update things in case any new domains are added.
 	return kick(env, "mail user added")
 
@@ -406,67 +395,91 @@ 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):
+def add_mail_alias(address, forwards_to, permitted_senders, env, update_if_exists=False, do_kick=True):
 	# convert Unicode domain to IDNA
-	source = sanitize_idn_email_address(source)
+	address = sanitize_idn_email_address(address)
 
 	# Our database is case sensitive (oops), which affects mail delivery
 	# (Postfix always queries in lowercase?), so force lowercase.
-	source = source.lower()
+	address = address.lower()
 
-	# validate source
+	# validate address
-	source = source.strip()
+	address = address.strip()
-	if source == "":
+	if address == "":
-		return ("No incoming email address provided.", 400)
+		return ("No email address provided.", 400)
-	if not validate_email(source, mode='alias'):
+	if not validate_email(address, mode='alias'):
-		return ("Invalid incoming email address (%s)." % source, 400)
+		return ("Invalid email address (%s)." % address, 400)
+
+	# validate forwards_to
+	validated_forwards_to = []
+	forwards_to = forwards_to.strip()
 
 	# extra checks for email addresses used in domain control validation
-	is_dcv_source = is_dcv_address(source)
+	is_dcv_source = is_dcv_address(address)
-
-	# validate destination
-	dests = []
-	destination = destination.strip()
 
 	# Postfix allows a single @domain.tld as the destination, which means
 	# the local part on the address is preserved in the rewrite. We must
 	# try to convert Unicode to IDNA first before validating that it's a
 	# legitimate alias address. Don't allow this sort of rewriting for
 	# DCV source addresses.
-	d1 = sanitize_idn_email_address(destination)
+	r1 = sanitize_idn_email_address(forwards_to)
-	if validate_email(d1, mode='alias') and not is_dcv_source:
+	if validate_email(r1, mode='alias') and not is_dcv_source:
-		dests.append(d1)
+		validated_forwards_to.append(r1)
 
 	else:
 		# Parse comma and \n-separated destination emails & validate. In this
-		# case, the recipients must be complete email addresses.
+		# case, the forwards_to must be complete email addresses.
-		for line in destination.split("\n"):
+		for line in forwards_to.split("\n"):
 			for email in line.split(","):
 				email = email.strip()
 				if email == "": continue
 				email = sanitize_idn_email_address(email) # Unicode => IDNA
 				if not validate_email(email):
-					return ("Invalid destination email address (%s)." % email, 400)
+					return ("Invalid receiver email address (%s)." % email, 400)
 				if is_dcv_source and not is_dcv_address(email) and "admin" not in get_mail_user_privileges(email, env, empty_on_error=True):
 					# Make domain control validation hijacking a little harder to mess up by
 					# requiring aliases for email addresses typically used in DCV to forward
 					# only to accounts that are administrators on this system.
 					return ("This alias can only have administrators of this system as destinations because the address is frequently used for domain control validation.", 400)
-				dests.append(email)
+				validated_forwards_to.append(email)
-	if len(destination) == 0:
+
-		return ("No destination email address(es) provided.", 400)
+	# validate permitted_senders
-	destination = ",".join(dests)
+	valid_logins = get_mail_users(env)
+	validated_permitted_senders = []
+	permitted_senders = permitted_senders.strip()
+
+	# Parse comma and \n-separated sender logins & validate. The permitted_senders must be
+	# valid usernames.
+	for line in permitted_senders.split("\n"):
+		for login in line.split(","):
+			login = login.strip()
+			if login == "": continue
+			if login not in valid_logins:
+				return ("Invalid permitted sender: %s is not a user on this system." % login, 400)
+			validated_permitted_senders.append(login)
+
+	# Make sure the alias has either a forwards_to or a permitted_sender.
+	if len(validated_forwards_to) + len(validated_permitted_senders) == 0:
+		return ("The alias must either forward to an address or have a permitted sender.", 400)
 
 	# save to db
+
+	forwards_to = ",".join(validated_forwards_to)
+
+	if len(validated_permitted_senders) == 0:
+		permitted_senders = None
+	else:
+		permitted_senders = ",".join(validated_permitted_senders)
+
 	conn, c = open_database(env, with_connection=True)
 	try:
-		c.execute("INSERT INTO aliases (source, destination) VALUES (?, ?)", (source, destination))
+		c.execute("INSERT INTO aliases (source, destination, permitted_senders) VALUES (?, ?, ?)", (address, forwards_to, permitted_senders))
 		return_status = "alias added"
 	except sqlite3.IntegrityError:
 		if not update_if_exists:
-			return ("Alias already exists (%s)." % source, 400)
+			return ("Alias already exists (%s)." % address, 400)
 		else:
-			c.execute("UPDATE aliases SET destination = ? WHERE source = ?", (destination, source))
+			c.execute("UPDATE aliases SET destination = ?, permitted_senders = ? WHERE source = ?", (forwards_to, permitted_senders, address))
 			return_status = "alias updated"
 
 	conn.commit()
@@ -475,15 +488,15 @@ def add_mail_alias(source, destination, env, update_if_exists=False, do_kick=Tru
 		# Update things in case any new domains are added.
 		return kick(env, return_status)
 
-def remove_mail_alias(source, env, do_kick=True):
+def remove_mail_alias(address, env, do_kick=True):
 	# convert Unicode domain to IDNA
-	source = sanitize_idn_email_address(source)
+	address = sanitize_idn_email_address(address)
 
 	# remove
 	conn, c = open_database(env, with_connection=True)
-	c.execute("DELETE FROM aliases WHERE source=?", (source,))
+	c.execute("DELETE FROM aliases WHERE source=?", (address,))
 	if c.rowcount != 1:
-		return ("That's not an alias (%s)." % source, 400)
+		return ("That's not an alias (%s)." % address, 400)
 	conn.commit()
 
 	if do_kick:
@@ -507,8 +520,8 @@ def get_required_aliases(env):
 	# email on that domain are the required aliases or a catch-all/domain-forwarder.
 	real_mail_domains = get_mail_domains(env,
 		filter_aliases = lambda alias :
-			not alias[0].startswith("postmaster@") and not alias[0].startswith("admin@")
+			not alias.startswith("postmaster@") and not alias.startswith("admin@")
-			and not alias[0].startswith("@")
+			and not alias.startswith("@")
 			)
 
 	# Create postmaster@ and admin@ for all domains we serve mail on.
@@ -532,37 +545,38 @@ def kick(env, mail_result=None):
 	# Ensure every required alias exists.
 
 	existing_users = get_mail_users(env)
-	existing_aliases = get_mail_aliases(env)
+	existing_alias_records = get_mail_aliases(env)
+	existing_aliases = set(a for a, *_ in existing_alias_records) # just first entry in tuple
 	required_aliases = get_required_aliases(env)
 
-	def ensure_admin_alias_exists(source):
+	def ensure_admin_alias_exists(address):
 		# If a user account exists with that address, we're good.
-		if source in existing_users:
+		if address in existing_users:
 			return
 
-		# Does this alias exists?
+		# If the alias already exists, we're good.
-		for s, t in existing_aliases:
+		if address in existing_aliases:
-			if s == source:
+			return
-				return
 
 		# Doesn't exist.
 		administrator = get_system_administrator(env)
-		if source == administrator: return # don't make an alias from the administrator to itself --- this alias must be created manually
+		if address == administrator: return # don't make an alias from the administrator to itself --- this alias must be created manually
-		add_mail_alias(source, administrator, env, do_kick=False)
+		add_mail_alias(address, administrator, "", env, do_kick=False)
-		results.append("added alias %s (=> %s)\n" % (source, administrator))
+		if administrator not in existing_aliases: return # don't report the alias in output if the administrator alias isn't in yet -- this is a hack to supress confusing output on initial setup
+		results.append("added alias %s (=> %s)\n" % (address, administrator))
 
-	for alias in required_aliases:
+	for address in required_aliases:
-		ensure_admin_alias_exists(alias)
+		ensure_admin_alias_exists(address)
 
 	# Remove auto-generated postmaster/admin on domains we no
 	# longer have any other email addresses for.
-	for source, target in existing_aliases:
+	for address, forwards_to, *_ in existing_alias_records:
-		user, domain = source.split("@")
+		user, domain = address.split("@")
 		if user in ("postmaster", "admin") \
-			and source not in required_aliases \
+			and address not in required_aliases \
-			and target == get_system_administrator(env):
+			and forwards_to == get_system_administrator(env):
-			remove_mail_alias(source, env, do_kick=False)
+			remove_mail_alias(address, env, do_kick=False)
-			results.append("removed alias %s (was to %s; domain no longer used for email)\n" % (source, target))
+			results.append("removed alias %s (was to %s; domain no longer used for email)\n" % (address, forwards_to))
 
 	# Update DNS and nginx in case any domains are added/removed.
 

management/status_checks.py

@@ -12,11 +12,11 @@ import dns.reversename, dns.resolver
 import dateutil.parser, dateutil.tz
 import idna
 
-from dns_update import get_dns_zones, build_tlsa_record, get_custom_dns_config, get_secondary_dns
+from dns_update import get_dns_zones, build_tlsa_record, get_custom_dns_config, get_secondary_dns, get_custom_dns_record
-from web_update import get_web_domains, get_default_www_redirects, get_domain_ssl_files
+from web_update import get_web_domains, get_default_www_redirects, get_ssl_certificates, get_domain_ssl_files, get_domains_with_a_records
 from mailconfig import get_mail_domains, get_mail_aliases
 
-from utils import shell, sort_domains, load_env_vars_from_file
+from utils import shell, sort_domains, load_env_vars_from_file, load_settings
 
 def run_checks(rounded_values, env, output, pool):
 	# run systems checks
@@ -33,7 +33,7 @@ def run_checks(rounded_values, env, output, pool):
 	# (ignore errors; if bind9/rndc isn't running we'd already report
 	# that in run_services checks.)
 	shell('check_call', ["/usr/sbin/rndc", "flush"], trap=True)
-	
+
 	run_system_checks(rounded_values, env, output)
 
 	# perform other checks asynchronously
@@ -149,6 +149,7 @@ def check_service(i, service, env):
 def run_system_checks(rounded_values, env, output):
 	check_ssh_password(env, output)
 	check_software_updates(env, output)
+	check_miab_version(env, output)
 	check_system_aliases(env, output)
 	check_free_disk_space(rounded_values, env, output)
 
@@ -244,38 +245,49 @@ def run_domain_checks(rounded_time, env, output, pool):
 
 	domains_to_check = mail_domains | dns_domains | web_domains
 
+	# Get the list of domains that we don't serve web for because of a custom CNAME/A record.
+	domains_with_a_records = get_domains_with_a_records(env)
+
+	ssl_certificates = get_ssl_certificates(env)
+
 	# Serial version:
 	#for domain in sort_domains(domains_to_check, env):
 	#	run_domain_checks_on_domain(domain, rounded_time, env, dns_domains, dns_zonefiles, mail_domains, web_domains)
 
 	# Parallelize the checks across a worker pool.
-	args = ((domain, rounded_time, env, dns_domains, dns_zonefiles, mail_domains, web_domains)
+	args = ((domain, rounded_time, env, dns_domains, dns_zonefiles, mail_domains, web_domains, domains_with_a_records, ssl_certificates)
 		for domain in domains_to_check)
 	ret = pool.starmap(run_domain_checks_on_domain, args, chunksize=1)
 	ret = dict(ret) # (domain, output) => { domain: output }
 	for domain in sort_domains(ret, env):
 		ret[domain].playback(output)
 
-def run_domain_checks_on_domain(domain, rounded_time, env, dns_domains, dns_zonefiles, mail_domains, web_domains):
+def run_domain_checks_on_domain(domain, rounded_time, env, dns_domains, dns_zonefiles, mail_domains, web_domains, domains_with_a_records, ssl_certificates):
 	output = BufferedOutput()
 
-	# The domain is IDNA-encoded, but for display use Unicode.
+	# The domain is IDNA-encoded in the database, but for display use Unicode.
-	output.add_heading(idna.decode(domain.encode('ascii')))
+	try:
+		domain_display = idna.decode(domain.encode('ascii'))
+		output.add_heading(domain_display)
+	except (ValueError, UnicodeError, idna.IDNAError) as e:
+		# Looks like we have some invalid data in our database.
+		output.add_heading(domain)
+		output.print_error("Domain name is invalid: " + str(e))
 
 	if domain == env["PRIMARY_HOSTNAME"]:
 		check_primary_hostname_dns(domain, env, output, dns_domains, dns_zonefiles)
-		
+
 	if domain in dns_domains:
 		check_dns_zone(domain, env, output, dns_zonefiles)
-		
+
 	if domain in mail_domains:
 		check_mail_domain(domain, env, output)
 
 	if domain in web_domains:
-		check_web_domain(domain, rounded_time, env, output)
+		check_web_domain(domain, rounded_time, ssl_certificates, env, output)
 
 	if domain in dns_domains:
-		check_dns_zone_suggestions(domain, env, output, dns_zonefiles)
+		check_dns_zone_suggestions(domain, env, output, dns_zonefiles, domains_with_a_records)
 
 	return (domain, output)
 
@@ -351,11 +363,14 @@ def check_primary_hostname_dns(domain, env, output, dns_domains, dns_zonefiles):
 	check_alias_exists("Hostmaster contact address", "hostmaster@" + domain, env, output)
 
 def check_alias_exists(alias_name, alias, env, output):
-	mail_alises = dict(get_mail_aliases(env))
+	mail_aliases = dict([(address, receivers) for address, receivers, *_ in get_mail_aliases(env)])
-	if alias in mail_alises:
+	if alias in mail_aliases:
-		output.print_ok("%s exists as a mail alias. [%s ↦ %s]" % (alias_name, alias, mail_alises[alias]))
+		if mail_aliases[alias]:
+			output.print_ok("%s exists as a mail alias. [%s ↦ %s]" % (alias_name, alias, mail_aliases[alias]))
+		else:
+			output.print_error("""You must set the destination of the mail alias for %s to direct email to you or another administrator.""" % alias)
 	else:
-		output.print_error("""You must add a mail alias for %s and direct email to you or another administrator.""" % alias)
+		output.print_error("""You must add a mail alias for %s which directs email to you or another administrator.""" % alias)
 
 def check_dns_zone(domain, env, output, dns_zonefiles):
 	# If a DS record is set at the registrar, check DNSSEC first because it will affect the NS query.
@@ -365,20 +380,24 @@ def check_dns_zone(domain, env, output, dns_zonefiles):
 
 	# We provide a DNS zone for the domain. It should have NS records set up
 	# at the domain name's registrar pointing to this box. The secondary DNS
-	# server may be customized. Unfortunately this may not check the domain's
+	# server may be customized.
-	# whois information -- we may be getting the NS records from us rather than
+	# (I'm not sure whether this necessarily tests the TLD's configuration,
-	# the TLD, and so we're not actually checking the TLD. For that we'd need
+	# as it should, or if one successful NS line at the TLD will result in
-	# to do a DNS trace.
+	# this query being answered by the box, which would mean the test is only
-	ip = query_dns(domain, "A")
+	# half working.)
-	secondary_ns = get_secondary_dns(get_custom_dns_config(env)) or "ns2." + env['PRIMARY_HOSTNAME']
+
+	custom_dns_records = list(get_custom_dns_config(env)) # generator => list so we can reuse it
+	correct_ip = get_custom_dns_record(custom_dns_records, domain, "A") or env['PUBLIC_IP']
+	custom_secondary_ns = get_secondary_dns(custom_dns_records, mode="NS")
+	secondary_ns = custom_secondary_ns or ["ns2." + env['PRIMARY_HOSTNAME']]
+
 	existing_ns = query_dns(domain, "NS")
-	correct_ns = "; ".join(sorted([
+	correct_ns = "; ".join(sorted(["ns1." + env['PRIMARY_HOSTNAME']] + secondary_ns))
-		"ns1." + env['PRIMARY_HOSTNAME'],
+	ip = query_dns(domain, "A")
-		secondary_ns,
+
-		]))
 	if existing_ns.lower() == correct_ns.lower():
 		output.print_ok("Nameservers are set correctly at registrar. [%s]" % correct_ns)
-	elif ip == env['PUBLIC_IP']:
+	elif ip == correct_ip:
 		# The domain resolves correctly, so maybe the user is using External DNS.
 		output.print_warning("""The nameservers set on this domain at your domain name registrar should be %s. They are currently %s.
 			If you are using External DNS, this may be OK."""
@@ -388,7 +407,33 @@ def check_dns_zone(domain, env, output, dns_zonefiles):
 			control panel to set the nameservers to %s."""
 				% (existing_ns, correct_ns) )
 
-def check_dns_zone_suggestions(domain, env, output, dns_zonefiles):
+	# Check that each custom secondary nameserver resolves the IP address.
+	
+	if custom_secondary_ns:
+		for ns in custom_secondary_ns:
+			# We must first resolve the nameserver to an IP address so we can query it.
+			ns_ip = query_dns(ns, "A")
+			if not ns_ip:
+				output.print_error("Secondary nameserver %s is not valid (it doesn't resolve to an IP address)." % ns)
+				continue
+
+			# Now query it to see what it says about this domain.
+			ip = query_dns(domain, "A", at=ns_ip, nxdomain=None)
+			if ip == correct_ip:
+				output.print_ok("Secondary nameserver %s resolved the domain correctly." % ns)
+			elif ip is None:
+				output.print_error("Secondary nameserver %s is not configured to resolve this domain." % ns)
+			else:
+				output.print_error("Secondary nameserver %s is not configured correctly. (It resolved this domain as %s. It should be %s.)" % (ns, ip, env['PUBLIC_IP']))
+
+def check_dns_zone_suggestions(domain, env, output, dns_zonefiles, domains_with_a_records):
+	# Warn if a custom DNS record is preventing this or the automatic www redirect from
+	# being served.
+	if domain in domains_with_a_records:
+		output.print_warning("""Web has been disabled for this domain because you have set a custom DNS record.""")
+	if "www." + domain in domains_with_a_records:
+		output.print_warning("""A redirect from 'www.%s' has been disabled for this domain because you have set a custom DNS record on the www subdomain.""" % domain)
+
 	# Since DNSSEC is optional, if a DS record is NOT set at the registrar suggest it.
 	# (If it was set, we did the check earlier.)
 	if query_dns(domain, "DS", nxdomain=None) is None:
@@ -399,7 +444,9 @@ def check_dnssec(domain, env, output, dns_zonefiles, is_checking_primary=False):
 	# See if the domain has a DS record set at the registrar. The DS record may have
 	# several forms. We have to be prepared to check for any valid record. We've
 	# pre-generated all of the valid digests --- read them in.
-	ds_correct = open('/etc/nsd/zones/' + dns_zonefiles[domain] + '.ds').read().strip().split("\n")
+	ds_file = '/etc/nsd/zones/' + dns_zonefiles[domain] + '.ds'
+	if not os.path.exists(ds_file): return # Domain is in our database but DNS has not yet been updated.
+	ds_correct = open(ds_file).read().strip().split("\n")
 	digests = { }
 	for rr_ds in ds_correct:
 		ds_keytag, ds_alg, ds_digalg, ds_digest = rr_ds.split("\t")[4].split(" ")
@@ -495,7 +542,7 @@ def check_mail_domain(domain, env, output):
 
 	# Check that the postmaster@ email address exists. Not required if the domain has a
 	# catch-all address or domain alias.
-	if "@" + domain not in dict(get_mail_aliases(env)):
+	if "@" + domain not in [address for address, *_ in get_mail_aliases(env)]:
 		check_alias_exists("Postmaster contact address", "postmaster@" + domain, env, output)
 
 	# Stop if the domain is listed in the Spamhaus Domain Block List.
@@ -509,7 +556,7 @@ def check_mail_domain(domain, env, output):
 			which may prevent recipients from receiving your mail.
 			See http://www.spamhaus.org/dbl/ and http://www.spamhaus.org/query/domain/%s.""" % (dbl, domain))
 
-def check_web_domain(domain, rounded_time, env, output):
+def check_web_domain(domain, rounded_time, ssl_certificates, env, output):
 	# See if the domain's A record resolves to our PUBLIC_IP. This is already checked
 	# for PRIMARY_HOSTNAME, for which it is required for mail specifically. For it and
 	# other domains, it is required to access its website.
@@ -525,9 +572,9 @@ def check_web_domain(domain, rounded_time, env, output):
 	# We need a SSL certificate for PRIMARY_HOSTNAME because that's where the
 	# user will log in with IMAP or webmail. Any other domain we serve a
 	# website for also needs a signed certificate.
-	check_ssl_cert(domain, rounded_time, env, output)
+	check_ssl_cert(domain, rounded_time, ssl_certificates, env, output)
 
-def query_dns(qname, rtype, nxdomain='[Not Set]'):
+def query_dns(qname, rtype, nxdomain='[Not Set]', at=None):
 	# Make the qname absolute by appending a period. Without this, dns.resolver.query
 	# will fall back a failed lookup to a second query with this machine's hostname
 	# appended. This has been causing some false-positive Spamhaus reports. The
@@ -536,9 +583,17 @@ def query_dns(qname, rtype, nxdomain='[Not Set]'):
 	if isinstance(qname, str):
 		qname += "."
 
+	# Use the default nameservers (as defined by the system, which is our locally
+	# running bind server), or if the 'at' argument is specified, use that host
+	# as the nameserver.
+	resolver = dns.resolver.get_default_resolver()
+	if at:
+		resolver = dns.resolver.Resolver()
+		resolver.nameservers = [at]
+
 	# Do the query.
 	try:
-		response = dns.resolver.query(qname, rtype)
+		response = resolver.query(qname, rtype)
 	except (dns.resolver.NoNameservers, dns.resolver.NXDOMAIN, dns.resolver.NoAnswer):
 		# Host did not have an answer for this query; not sure what the
 		# difference is between the two exceptions.
@@ -552,19 +607,24 @@ def query_dns(qname, rtype, nxdomain='[Not Set]'):
 	# can compare to a well known order.
 	return "; ".join(sorted(str(r).rstrip('.') for r in response))
 
-def check_ssl_cert(domain, rounded_time, env, output):
+def check_ssl_cert(domain, rounded_time, ssl_certificates, env, output):
 	# Check that SSL certificate is signed.
 
 	# Skip the check if the A record is not pointed here.
 	if query_dns(domain, "A", None) not in (env['PUBLIC_IP'], None): return
 
 	# Where is the SSL stored?
-	ssl_key, ssl_certificate, ssl_via = get_domain_ssl_files(domain, env)
+	x = get_domain_ssl_files(domain, ssl_certificates, env, allow_missing_cert=True)
 
-	if not os.path.exists(ssl_certificate):
+	if x is None:
-		output.print_error("The SSL certificate file for this domain is missing.")
+		output.print_warning("""No SSL certificate is installed for this domain. Visitors to a website on
+			this domain will get a security warning. If you are not serving a website on this domain, you do
+			not need to take any action. Use the SSL Certificates page in the control panel to install a
+			SSL certificate.""")
 		return
 
+	ssl_key, ssl_certificate, ssl_via = x
+
 	# Check that the certificate is good.
 
 	cert_status, cert_status_details = check_certificate(domain, ssl_certificate, ssl_key, rounded_time=rounded_time)
@@ -588,16 +648,13 @@ def check_ssl_cert(domain, rounded_time, env, output):
 		if domain == env['PRIMARY_HOSTNAME']:
 			output.print_error("""The SSL certificate for this domain is currently self-signed. You will get a security
 			warning when you check or send email and when visiting this domain in a web browser (for webmail or
-			static site hosting). Use the SSL Certificates page in this control panel to install a signed SSL certificate.
+			static site hosting). Use the SSL Certificates page in the control panel to install a signed SSL certificate.
 			You may choose to leave the self-signed certificate in place and confirm the security exception, but check that
 			the certificate fingerprint matches the following:""")
 			output.print_line("")
 			output.print_line("   " + fingerprint, monospace=True)
 		else:
-			output.print_warning("""The SSL certificate for this domain is currently self-signed. Visitors to a website on
+			output.print_error("""The SSL certificate for this domain is self-signed.""")
-			this domain will get a security warning. If you are not serving a website on this domain, then it is
-			safe to leave the self-signed certificate in place. Use the SSL Certificates page in this control panel to
-			install a signed SSL certificate.""")
 
 	else:
 		output.print_error("The SSL certificate has a problem: " + cert_status)
@@ -611,8 +668,7 @@ def check_certificate(domain, ssl_certificate, ssl_private_key, warn_if_expiring
 	# for the provided domain.
 
 	from cryptography.hazmat.primitives.asymmetric.rsa import RSAPrivateKey
-	from cryptography.x509 import Certificate, DNSName, ExtensionNotFound, OID_COMMON_NAME, OID_SUBJECT_ALTERNATIVE_NAME
+	from cryptography.x509 import Certificate
-	import idna
 
 	# The ssl_certificate file may contain a chain of certificates. We'll
 	# need to split that up before we can pass anything to openssl or
@@ -627,33 +683,7 @@ def check_certificate(domain, ssl_certificate, ssl_private_key, warn_if_expiring
 	# First check that the domain name is one of the names allowed by
 	# the certificate.
 	if domain is not None:
-		# The domain may be found in the Subject Common Name (CN). This comes back as an IDNA (ASCII)
+		certificate_names, cert_primary_name = get_certificate_domains(cert)
-		# string, which is the format we store domains in - so good.
-		certificate_names = set()
-		try:
-			certificate_names.add(
-				cert.subject.get_attributes_for_oid(OID_COMMON_NAME)[0].value
-				)
-		except IndexError:
-			# No common name? Certificate is probably generated incorrectly.
-			# But we'll let it error-out when it doesn't find the domain.
-			pass
-
-		# ... or be one of the Subject Alternative Names. The cryptography library handily IDNA-decodes
-		# the names for us. We must encode back to ASCII, but wildcard certificates can't pass through
-		# IDNA encoding/decoding so we must special-case. See https://github.com/pyca/cryptography/pull/2071.
-		def idna_decode_dns_name(dns_name):
-			if dns_name.startswith("*."):
-				return "*." + idna.encode(dns_name[2:]).decode('ascii')
-			else:
-				return idna.encode(dns_name).decode('ascii')
-				
-		try:
-			sans = cert.extensions.get_extension_for_oid(OID_SUBJECT_ALTERNATIVE_NAME).value.get_values_for_type(DNSName)
-			for san in sans:
-				certificate_names.add(idna_decode_dns_name(san))
-		except ExtensionNotFound:
-			pass
 
 		# Check that the domain appears among the acceptable names, or a wildcard
 		# form of the domain name (which is a stricter check than the specs but
@@ -708,7 +738,7 @@ def check_certificate(domain, ssl_certificate, ssl_private_key, warn_if_expiring
 		"openssl",
 		"verify", "-verbose",
 		"-purpose", "sslserver", "-policy_check",]
-		+ ([] if len(ssl_cert_chain) == 1 else ["-untrusted", "/dev/stdin"])
+		+ ([] if len(ssl_cert_chain) == 1 else ["-untrusted", "/proc/self/fd/0"])
 		+ [ssl_certificate],
 		input=b"\n\n".join(ssl_cert_chain[1:]),
 		trap=True)
@@ -749,7 +779,7 @@ def check_certificate(domain, ssl_certificate, ssl_private_key, warn_if_expiring
 def load_cert_chain(pemfile):
 	# A certificate .pem file may contain a chain of certificates.
 	# Load the file and split them apart.
-	re_pem = rb"(-+BEGIN (?:.+)-+[\r\n](?:[A-Za-z0-9+/=]{1,64}[\r\n])+-+END (?:.+)-+[\r\n])"
+	re_pem = rb"(-+BEGIN (?:.+)-+[\r\n]+(?:[A-Za-z0-9+/=]{1,64}[\r\n]+)+-+END (?:.+)-+[\r\n]+)"
 	with open(pemfile, "rb") as f:
 		pem = f.read() + b"\n" # ensure trailing newline
 		pemblocks = re.findall(re_pem, pem)
@@ -763,7 +793,7 @@ def load_pem(pem):
 	from cryptography.x509 import load_pem_x509_certificate
 	from cryptography.hazmat.primitives import serialization
 	from cryptography.hazmat.backends import default_backend
-	pem_type = re.match(b"-+BEGIN (.*?)-+\n", pem)
+	pem_type = re.match(b"-+BEGIN (.*?)-+[\r\n]", pem)
 	if pem_type is None:
 		raise ValueError("File is not a valid PEM-formatted file.")
 	pem_type = pem_type.group(1)
@@ -773,6 +803,41 @@ def load_pem(pem):
 		return load_pem_x509_certificate(pem, default_backend())
 	raise ValueError("Unsupported PEM object type: " + pem_type.decode("ascii", "replace"))
 
+def get_certificate_domains(cert):
+	from cryptography.x509 import DNSName, ExtensionNotFound, OID_COMMON_NAME, OID_SUBJECT_ALTERNATIVE_NAME
+	import idna
+
+	names = set()
+	cn = None
+
+	# The domain may be found in the Subject Common Name (CN). This comes back as an IDNA (ASCII)
+	# string, which is the format we store domains in - so good.
+	try:
+		cn = cert.subject.get_attributes_for_oid(OID_COMMON_NAME)[0].value
+		names.add(cn)
+	except IndexError:
+		# No common name? Certificate is probably generated incorrectly.
+		# But we'll let it error-out when it doesn't find the domain.
+		pass
+
+	# ... or be one of the Subject Alternative Names. The cryptography library handily IDNA-decodes
+	# the names for us. We must encode back to ASCII, but wildcard certificates can't pass through
+	# IDNA encoding/decoding so we must special-case. See https://github.com/pyca/cryptography/pull/2071.
+	def idna_decode_dns_name(dns_name):
+		if dns_name.startswith("*."):
+			return "*." + idna.encode(dns_name[2:]).decode('ascii')
+		else:
+			return idna.encode(dns_name).decode('ascii')
+
+	try:
+		sans = cert.extensions.get_extension_for_oid(OID_SUBJECT_ALTERNATIVE_NAME).value.get_values_for_type(DNSName)
+		for san in sans:
+			names.add(idna_decode_dns_name(san))
+	except ExtensionNotFound:
+		pass
+
+	return names, cn
+
 _apt_updates = None
 def list_apt_updates(apt_update=True):
 	# See if we have this information cached recently.
@@ -808,11 +873,11 @@ def list_apt_updates(apt_update=True):
 	return pkgs
 
 def what_version_is_this(env):
-	# This function runs `git describe` on the Mail-in-a-Box installation directory.
+	# This function runs `git describe --abbrev=0` on the Mail-in-a-Box installation directory.
 	# Git may not be installed and Mail-in-a-Box may not have been cloned from github,
 	# so this function may raise all sorts of exceptions.
 	miab_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-	tag = shell("check_output", ["/usr/bin/git", "describe"], env={"GIT_DIR": os.path.join(miab_dir, '.git')}).strip()
+	tag = shell("check_output", ["/usr/bin/git", "describe", "--abbrev=0"], env={"GIT_DIR": os.path.join(miab_dir, '.git')}).strip()
 	return tag
 
 def get_latest_miab_version():
@@ -821,6 +886,20 @@ def get_latest_miab_version():
 	import urllib.request
 	return re.search(b'TAG=(.*)', urllib.request.urlopen("https://mailinabox.email/bootstrap.sh?ping=1").read()).group(1).decode("utf8")
 
+def check_miab_version(env, output):
+	config = load_settings(env)
+
+	if config.get("privacy", True):
+		output.print_warning("Mail-in-a-Box version check disabled by privacy setting.")
+	else:
+		this_ver = what_version_is_this(env)
+		latest_ver = get_latest_miab_version()
+		if this_ver == latest_ver:
+			output.print_ok("Mail-in-a-Box is up to date. You are running version %s." % this_ver)
+		else:
+			output.print_error("A new version of Mail-in-a-Box is available. You are running version %s. The latest version is %s. For upgrade instructions, see https://mailinabox.email. "
+				% (this_ver, latest_ver))
+
 def run_and_output_changes(env, pool, send_via_email):
 	import json
 	from difflib import SequenceMatcher
@@ -887,7 +966,7 @@ def run_and_output_changes(env, pool, send_via_email):
 			if category not in cur_status:
 				out.add_heading(category)
 				out.print_warning("This section was removed.")
-	
+
 	if send_via_email:
 		# If there were changes, send off an email.
 		buf = out.buf.getvalue()
@@ -899,7 +978,7 @@ def run_and_output_changes(env, pool, send_via_email):
 			msg['To'] = "administrator@%s" % env['PRIMARY_HOSTNAME']
 			msg['Subject'] = "[%s] Status Checks Change Notice" % env['PRIMARY_HOSTNAME']
 			msg.set_payload(buf, "UTF-8")
-	
+
 			# send to administrator@
 			import smtplib
 			mailserver = smtplib.SMTP('localhost', 25)
@@ -909,7 +988,7 @@ def run_and_output_changes(env, pool, send_via_email):
 				"administrator@%s" % env['PRIMARY_HOSTNAME'], # RCPT TO
 				msg.as_string())
 			mailserver.quit()
-		
+
 	# Store the current status checks output for next time.
 	os.makedirs(os.path.dirname(cache_fn), exist_ok=True)
 	with open(cache_fn, "w") as f:
@@ -994,7 +1073,8 @@ if __name__ == "__main__":
 		domain = env['PRIMARY_HOSTNAME']
 		if query_dns(domain, "A") != env['PUBLIC_IP']:
 			sys.exit(1)
-		ssl_key, ssl_certificate, ssl_via = get_domain_ssl_files(domain, env)
+		ssl_certificates = get_ssl_certificates(env)
+		ssl_key, ssl_certificate, ssl_via = get_domain_ssl_files(domain, ssl_certificates, env)
 		if not os.path.exists(ssl_certificate):
 			sys.exit(1)
 		cert_status, cert_status_details = check_certificate(domain, ssl_certificate, ssl_key, warn_if_expiring_soon=False)

management/templates/aliases.html

@@ -7,33 +7,61 @@
 
 <h3>Add a mail alias</h3>
 
-<p>Aliases are email forwarders. An alias can forward email to a <a href="javascript:show_panel('users')">mail user</a> or to any email address.</p>
+<p>Aliases are email forwarders. An alias can forward email to a <a href="#" onclick="return show_panel('users')">mail user</a> or to any email address.</p>
 
-<form class="form-horizontal" role="form" onsubmit="do_add_alias(); return false;">
+<p>To use an alias or any address besides your own login username in outbound mail, the sending user must be included as a permitted sender for the alias.</p>
+
+<form id="addalias-form" class="form-horizontal" role="form" onsubmit="do_add_alias(); return false;">
   <div class="form-group">
     <div class="col-sm-offset-1 col-sm-11">
       <div id="alias_type_buttons" class="btn-group btn-group-xs">
-        <button type="button" class="btn btn-default active" data-mode="regular">Regular</button>
+        <button type="button" class="btn btn-default" data-mode="regular">Regular</button>
         <button type="button" class="btn btn-default" data-mode="catchall">Catch-All</button>
         <button type="button" class="btn btn-default" data-mode="domainalias">Domain Alias</button>
       </div>
       <div id="alias_mode_info" class="text-info small" style="display: none; margin: .5em 0 0 0;">
-        <span class="catchall hidden">A catch-all alias captures all otherwise unmatched email to a domain. Enter just a part of an email address starting with the @-sign.</span>
+        <span class="catchall hidden">A catch-all alias captures all otherwise unmatched email to a domain.</span>
-        <span class="domainalias hidden">A domain alias forwards all otherwise unmatched mail from one domain to another domain, preserving the part before the @-sign.</span>
+        <span class="domainalias hidden">A domain alias forwards all otherwise unmatched email from one domain to another domain, preserving the part before the @-sign.</span>
       </div>
     </div>
   </div>
   <div class="form-group">
-    <label for="addaliasEmail" class="col-sm-1 control-label">Alias</label>
+    <label for="addaliasAddress" class="col-sm-1 control-label">Alias</label>
     <div class="col-sm-10">
-      <input type="email" class="form-control" id="addaliasEmail">
+      <input type="email" class="form-control" id="addaliasAddress">
-      <div style="margin-top: 3px; padding-left: 3px; font-size: 90%" class="text-muted">You may use international (non-ASCII) characters for the domain part of the email address only.</div>
+      <div style="margin-top: 3px; padding-left: 3px; font-size: 90%" class="text-muted">
+        <span class="catchall domainalias">Enter just the part of an email address starting with the @-sign.</span>
+        You may use international (non-ASCII) characters for the domain part of the email address only.
+      </div>
     </div>
   </div>
   <div class="form-group">
-    <label for="addaliasTargets" class="col-sm-1 control-label">Forward To</label>
+    <label for="addaliasForwardsTo" class="col-sm-1 control-label">Forwards To</label>
     <div class="col-sm-10">
-      <textarea class="form-control" rows="3" id="addaliasTargets"></textarea>
+      <textarea class="form-control" rows="3" id="addaliasForwardsTo"></textarea>
+      <div style="margin-top: 3px; padding-left: 3px; font-size: 90%" class="text-muted">
+        <span class="domainalias">Enter just the part of an email address starting with the @-sign.</span>
+      </div>
+    </div>
+  </div>
+  <div class="form-group">
+    <label for="addaliasSenders" class="col-sm-1 control-label">Permitted Senders</label>
+    <div class="col-sm-10">
+      <div class="radio">
+        <label>
+          <input id="addaliasForwardsToNotAdvanced" name="addaliasForwardsToDivToggle" type="radio" checked onclick="$('#addaliasForwardsToDiv').toggle(false)">
+          Any mail user listed in the Fowards To box can send mail claiming to be from <span class="regularalias">the alias address</span><span class="catchall domainalias">any address on the alias domain</span>.
+        </label>
+      </div>
+      <div class="radio">
+        <label>
+          <input id="addaliasForwardsToAdvanced" name="addaliasForwardsToDivToggle" type="radio" id="addaliasForwardsToDivShower" onclick="$('#addaliasForwardsToDiv').toggle(true)">
+          I&rsquo;ll enter the mail users that can send mail claiming to be from <span class="regularalias">the alias address</span><span class="catchall domainalias">any address on the alias domain</span>.
+        </label>
+      </div>
+      <div id="addaliasForwardsToDiv" style="margin-top: .5em; margin-left: 1.4em; display: none;">
+        <textarea class="form-control" rows="3" id="addaliasSenders" placeholder="one user per line or separated by commas"></textarea>
+      </div>
     </div>
   </div>
   <div class="form-group">
@@ -51,6 +79,7 @@
       <th></th>
       <th>Alias<br></th>
       <th>Forwards To</th>
+      <th>Permitted Senders</th>
     </tr>
   </thead>
   <tbody>
@@ -70,8 +99,9 @@
           <span class="glyphicon glyphicon-trash"></span>
         </a>
     </td>
-    <td class='email'> </td>
+    <td class='address'> </td>
-    <td class='target'> </td>
+    <td class='forwardsTo'> </td>
+    <td class='senders'> </td>
   </tr>
   </table>
 </div>
@@ -98,10 +128,12 @@ function show_aliases() {
           n.attr('id', '');
 
           if (alias.required) n.addClass('alias-required');
-          n.attr('data-email', alias.source_display); // this is decoded from IDNA, but will get re-coded to IDNA on the backend
+          n.attr('data-address', alias.address_display); // this is decoded from IDNA, but will get re-coded to IDNA on the backend
-          n.find('td.email').text(alias.source_display)
+          n.find('td.address').text(alias.address_display)
-          for (var j = 0; j < alias.destination.length; j++)
+          for (var j = 0; j < alias.forwards_to.length; j++)
-            n.find('td.target').append($("<div></div>").text(alias.destination[j]))
+            n.find('td.forwardsTo').append($("<div></div>").text(alias.forwards_to[j]))
+          for (var j = 0; j < (alias.permitted_senders ? alias.permitted_senders.length : 0); j++)
+            n.find('td.senders').append($("<div></div>").text(alias.permitted_senders[j]))
           $('#alias_table tbody').append(n);
         }
       }
@@ -111,25 +143,25 @@ function show_aliases() {
     $('#alias_type_buttons button').off('click').click(function() {
       $('#alias_type_buttons button').removeClass('active');
       $(this).addClass('active');
+      $('#addalias-form .regularalias, #addalias-form .catchall, #addalias-form .domainalias').addClass('hidden');
       if ($(this).attr('data-mode') == "regular") {
-        $('#addaliasEmail').attr('type', 'email');
+        $('#addaliasAddress').attr('type', 'email');
-        $('#addaliasEmail').attr('placeholder', 'incoming email address (e.g. you@yourdomain.com)');
+        $('#addaliasAddress').attr('placeholder', 'you@yourdomain.com (incoming email address)');
-	$('#addaliasTargets').attr('placeholder', 'forward to these email addresses (one per line or separated by commas)');
+        $('#addaliasForwardsTo').attr('placeholder', 'one address per line or separated by commas');
         $('#alias_mode_info').slideUp();
+        $('#addalias-form .regularalias').removeClass('hidden');
       } else if ($(this).attr('data-mode') == "catchall") {
-        $('#addaliasEmail').attr('type', 'text');
+        $('#addaliasAddress').attr('type', 'text');
-        $('#addaliasEmail').attr('placeholder', 'incoming catch-all address (e.g. @yourdomain.com)');
+        $('#addaliasAddress').attr('placeholder', '@yourdomain.com (incoming catch-all domain)');
-	$('#addaliasTargets').attr('placeholder', 'forward to these email addresses (one per line or separated by commas)');
+        $('#addaliasForwardsTo').attr('placeholder', 'one address per line or separated by commas');
         $('#alias_mode_info').slideDown();
-        $('#alias_mode_info span').addClass('hidden');
+        $('#addalias-form .catchall').removeClass('hidden');
-        $('#alias_mode_info span.catchall').removeClass('hidden');
       } else if ($(this).attr('data-mode') == "domainalias") {
-        $('#addaliasEmail').attr('type', 'text');
+        $('#addaliasAddress').attr('type', 'text');
-        $('#addaliasEmail').attr('placeholder', 'incoming domain (@yourdomain.com)');
+        $('#addaliasAddress').attr('placeholder', '@yourdomain.com (incoming catch-all domain)');
-        $('#addaliasTargets').attr('placeholder', 'forward to domain (@yourdomain.com)');
+        $('#addaliasForwardsTo').attr('placeholder', '@otherdomain.com (forward to other domain)');
         $('#alias_mode_info').slideDown();
-        $('#alias_mode_info span').addClass('hidden');
+        $('#addalias-form .domainalias').removeClass('hidden');
-        $('#alias_mode_info span.domainalias').removeClass('hidden');
       }
     })
     $('#alias_type_buttons button[data-mode="regular"]').click(); // init
@@ -139,15 +171,21 @@ function show_aliases() {
 var is_alias_add_update = false;
 function do_add_alias() {
   var title = (!is_alias_add_update) ? "Add Alias" : "Update Alias";
-  var email = $("#addaliasEmail").val();
+  var form_address = $("#addaliasAddress").val();
-  var targets = $("#addaliasTargets").val();
+  var form_forwardsto = $("#addaliasForwardsTo").val();
+  var form_senders = ($('#addaliasForwardsToAdvanced').prop('checked') ? $("#addaliasSenders").val() : '');
+  if ($('#addaliasForwardsToAdvanced').prop('checked') && !/\S/.exec($("#addaliasSenders").val())) {
+    show_modal_error(title, "You did not enter any permitted senders.");
+    return false;
+  }
   api(
     "/mail/aliases/add",
     "POST",
     {
       update_if_exists: is_alias_add_update ? '1' : '0',
-      source: email,
+      address: form_address,
-      destination: targets
+      forwards_to: form_forwardsto,
+      permitted_senders: form_senders
     },
     function(r) {
       // Responses are multiple lines of pre-formatted text.
@@ -162,48 +200,55 @@ function do_add_alias() {
 }
 
 function aliases_reset_form() {
-  $("#addaliasEmail").prop('disabled', false);
+  $("#addaliasAddress").prop('disabled', false);
-  $("#addaliasEmail").val('')
+  $("#addaliasAddress").val('')
-  $("#addaliasTargets").val('')
+  $("#addaliasForwardsTo").val('')
+  $("#addaliasSenders").val('')
   $('#alias-cancel').addClass('hidden');
   $('#add-alias-button').text('Add Alias');
   is_alias_add_update = false;
 }
 
 function aliases_edit(elem) {
-  var email = $(elem).parents('tr').attr('data-email');
+  var address = $(elem).parents('tr').attr('data-address');
-  var targetdivs = $(elem).parents('tr').find('.target div');
+  var receiverdivs = $(elem).parents('tr').find('.forwardsTo div');
-  var targets = "";
+  var senderdivs = $(elem).parents('tr').find('.senders div');
-  for (var i = 0; i < targetdivs.length; i++)
+  var forwardsTo = "";
-    targets += $(targetdivs[i]).text() + "\n";
+  for (var i = 0; i < receiverdivs.length; i++)
-
+    forwardsTo += $(receiverdivs[i]).text() + "\n";
-  is_alias_add_update = true;
+  var senders = "";
-  $('#alias-cancel').removeClass('hidden');
+  for (var i = 0; i < senderdivs.length; i++)
-  $("#addaliasEmail").prop('disabled', true);
+    senders += $(senderdivs[i]).text() + "\n";
-  $("#addaliasEmail").val(email);
+  if (address.charAt(0) == '@' && forwardsTo.charAt(0) == '@')
-  $("#addaliasTargets").val(targets);
-  $('#add-alias-button').text('Update');
-  if (email.charAt(0) == '@' && targets.charAt(0) == '@')
     $('#alias_type_buttons button[data-mode="domainalias"]').click();
-  else if (email.charAt(0) == '@')
+  else if (address.charAt(0) == '@')
     $('#alias_type_buttons button[data-mode="catchall"]').click();
   else
     $('#alias_type_buttons button[data-mode="regular"]').click();
+  $('#alias-cancel').removeClass('hidden');
+  $("#addaliasAddress").prop('disabled', true);
+  $("#addaliasAddress").val(address);
+  $("#addaliasForwardsTo").val(forwardsTo);
+  $('#addaliasForwardsToAdvanced').prop('checked', senders != "");
+  $('#addaliasForwardsToNotAdvanced').prop('checked', senders == "");
+  $("#addaliasSenders").val(senders);
+  $('#add-alias-button').text('Update');
   $('body').animate({ scrollTop: 0 })
+  is_alias_add_update = true;
 }
 
 function aliases_remove(elem) {
-  var email = $(elem).parents('tr').attr('data-email');
+  var row_address = $(elem).parents('tr').attr('data-address');
   show_modal_confirm(
     "Remove Alias",
-    "Remove " + email + "?",
+    "Remove " + row_address + "?",
     "Remove",
     function() {
       api(
         "/mail/aliases/remove",
         "POST",
         {
-          source: email
+          address: row_address
         },
         function(r) {
           // Responses are multiple lines of pre-formatted text.

management/templates/custom-dns.html

@@ -67,7 +67,8 @@
 
 <h3>Using a Secondary Nameserver</h3>
 
-<p>If your TLD requires you to have two separate nameservers, you can either set up a secondary (aka &ldquo;slave&rdquo;) nameserver or, alternatively, set up <a href="#" onclick="return show_panel('external_dns')">external DNS</a> and ignore the DNS server on this box. If you choose to use a seconday/slave nameserver, you must find a seconday/slave nameserver service provider. Your domain name registrar or virtual cloud provider may provide this service for you. Once you set up the seconday/slave nameserver service, enter the hostname of <em>their</em> secondary nameserver:</p>
+<p>If your TLD requires you to have two separate nameservers, you can either set up <a href="#" onclick="return show_panel('external_dns')">external DNS</a> and ignore the DNS server on this box entirely, or use the DNS server on this box but add a secondary (aka &ldquo;slave&rdquo;) nameserver.</p>
+<p>If you choose to use a seconday nameserver, you must find a seconday nameserver service provider. Your domain name registrar or virtual cloud provider may provide this service for you. Once you set up the seconday nameserver service, enter the hostname (not the IP address) of <em>their</em> secondary nameserver in the box below.</p>
 
 <form class="form-horizontal" role="form" onsubmit="do_set_secondary_dns(); return false;">
   <div class="form-group">
@@ -83,7 +84,11 @@
   </div>
   <div id="secondarydns-clear-instructions" class="form-group" style="display: none">
     <div class="col-sm-offset-1 col-sm-11">
-      <p class="small">Clear the input field above and click Update to use this machine itself as secondary DNS, which is the default/normal setup.</p>
+      <p class="small">
+        Multiple secondary servers can be separated with commas or spaces (i.e., <code>ns2.hostingcompany.com ns3.hostingcompany.com</code>). 
+        To enable zone transfers to additional servers without listing them as secondary nameservers, add <code>xfr:IPADDRESS</code>.
+        Clear the input field above and click Update to use this machine itself as secondary DNS, which is the default/normal setup.
+      </p>
     </div>
   </div>
 </form>
@@ -152,8 +157,8 @@ function show_custom_dns() {
     "GET",
     { },
     function(data) {
-      $('#secondarydnsHostname').val(data.hostname ? data.hostname : '');
+      $('#secondarydnsHostname').val(data.hostnames.join(' '));
-      $('#secondarydns-clear-instructions').toggle(data.hostname != null);
+      $('#secondarydns-clear-instructions').toggle(data.hostnames.length > 0);
     });
 
   api(
@@ -210,7 +215,7 @@ function do_set_secondary_dns() {
     "/dns/secondary-nameserver",
     "POST",
     {
-      hostname: $('#secondarydnsHostname').val()
+      hostnames: $('#secondarydnsHostname').val()
     },
     function(data) {
       if (data == "") return; // nothing updated

management/templates/external-dns.html

@@ -34,6 +34,15 @@
 
 <p>If you do so, you are responsible for keeping your DNS entries up to date! If you previously enabled DNSSEC on your domain name by setting a DS record at your registrar, you will likely have to turn it off before changing nameservers.</p>
 
+
+<p class="alert" role="alert">
+	<span class="glyphicon glyphicon-info-sign"></span>
+	You may encounter zone file errors when attempting to create a TXT record with a long string.
+	<a href="http://tools.ietf.org/html/rfc4408#section-3.1.3">RFC 4408</a> states a TXT record is allowed to contain multiple strings, and this technique can be used to construct records that would exceed the 255-byte maximum length.
+	You may need to adopt this technique when adding DomainKeys. Use a tool like <code>named-checkzone</code> to validate your zone file.
+</p>
+
+
 <table id="external_dns_settings" class="table">
 	<thead>
 		<tr>

management/templates/index.html

@@ -9,17 +9,10 @@
 
         <meta name="robots" content="noindex, nofollow">
 
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" integrity="sha256-MfvZlkHCEqatNoGiOXveE8FIwMzZg4W85qfrfIFBfYc=" crossorigin="anonymous">
         <style>
-            @import url(https://fonts.googleapis.com/css?family=Raleway:400,700);
+	    body {
-            @import url(https://fonts.googleapis.com/css?family=Ubuntu:300);
-
-	    html {
 		overflow-y: scroll;
-	    }
-
-            body {
-                padding-top: 50px;
                 padding-bottom: 20px;
             }
 
@@ -28,7 +21,7 @@
             }
 
             h1, h2, h3, h4 {
-              font-family: Raleway, sans-serif;
+              font-family: sans-serif;
               font-weight: bold;
             }
 
@@ -70,15 +63,14 @@
 	       margin-bottom: 1em;
 	    }
         </style>
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap-theme.min.css">
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css" integrity="sha256-bHQiqcFbnJb1Qhh61RY9cMh6kR0gTuQY6iFOBj1yj00=" crossorigin="anonymous">
-        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
     </head>
     <body>
 
     <!--[if lt IE 8]><p>Internet Explorer version 8 or any modern web browser is required to use this website, sorry.<![endif]-->
     <!--[if gt IE 7]><!-->
 
-    <div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
+    <div class="navbar navbar-inverse" role="navigation">
       <div class="container">
         <div class="navbar-header">
           <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target=".navbar-collapse">
@@ -114,7 +106,6 @@
             </li>
             <li><a href="#sync_guide" onclick="return show_panel(this);">Contacts/Calendar</a></li>
             <li><a href="#web" onclick="return show_panel(this);">Web</a></li>
-            <li><a href="#version" onclick="return show_panel(this);">Version</a></li>
           </ul>
           <ul class="nav navbar-nav navbar-right">
             <li><a href="#" onclick="do_logout(); return false;" style="color: white">Log out?</a></li>
@@ -168,10 +159,6 @@
       {% include "ssl.html" %}
       </div>
 
-      <div id="panel_version" class="admin_panel">
-      {% include "version.html" %}
-      </div>
-
       <hr>
 
       <footer>
@@ -204,8 +191,8 @@
           </div>
         </div>
 
-        <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
+        <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js" integrity="sha256-rsPUGdUPBXgalvIj4YKJrrUlmLXbOb6Cp7cdxn1qeUc=" crossorigin="anonymous"></script>
-        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
+        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js" integrity="sha256-Sk3nkD6mLTMOF0EOpNtsIry+s1CsaqQC1rVLTAy+0yc=" crossorigin="anonymous"></script>
 
         <script>
 var global_modal_state = null;
@@ -215,8 +202,8 @@ $(function() {
   $('#global_modal').on('shown.bs.modal', function (e) {
     // set focus to first input in the global modal's body
     var input = $('#global_modal .modal-body input');
-    if (input.length > 0) $(input[0]).focus();  
+    if (input.length > 0) $(input[0]).focus();
-  })  
+  })
   $('#global_modal .btn-danger').click(function() {
     // Don't take action now. Wait for the modal to be totally hidden
     // so that we don't attempt to show another modal while this one
@@ -276,7 +263,7 @@ function show_modal_confirm(title, question, verb, yes_callback, cancel_callback
 }
 
 var ajax_num_executing_requests = 0;
-function ajax(options) {
+function ajax_with_indicator(options) {
   setTimeout("if (ajax_num_executing_requests > 0) $('#ajax_loading_indicator').fadeIn()", 100);
   function hide_loading_indicator() {
     ajax_num_executing_requests--;
@@ -338,7 +325,7 @@ function api(url, method, data, callback, callback_error) {
       show_modal_error("Error", "Something went wrong, sorry.")
   }
 
-  ajax({
+  ajax_with_indicator({
     url: "/admin" + url,
     method: method,
     cache: false,

management/templates/login.html

@@ -57,11 +57,15 @@ sudo tools/mail.py user make-admin me@{{hostname}}</pre>
 <script>
 function do_login() {
   if ($('#loginEmail').val() == "") {
-    show_modal_error("Login Failed", "Enter your email address.")
+    show_modal_error("Login Failed", "Enter your email address.", function() {
+	$('#loginEmail').focus();
+    });
     return false;
   }
   if ($('#loginPassword').val() == "") {
-    show_modal_error("Login Failed", "Enter your email password.")
+    show_modal_error("Login Failed", "Enter your email password.", function() {
+        $('#loginPassword').focus();
+    });
     return false;
   }
 
@@ -126,4 +130,14 @@ function do_logout() {
     sessionStorage.removeItem("miab-cp-credentials");
   show_panel('login');
 }
+
+function show_login() {
+  $('#loginEmail,#loginPassword').each(function() {
+    var input = $(this);
+    if (!$.trim(input.val())) {
+      input.focus();
+      return false;
+    }
+  });
+}
 </script>

management/templates/ssl.html

@@ -18,11 +18,11 @@
   </tbody>
 </table>
 
-<p>Advanced:<br>Install a multi-domain or wildcard certificate for the <code>{{hostname}}</code> domain to have it automatically applied to any domains it is valid for.</p>
+<p>A multi-domain or wildcard certificate will be automatically applied to any domains it is valid for.</p>
 
 <h3 id="ssl_install_header">Install SSL Certificate</h3>
 
-<p>There are many places where you can get a free or cheap SSL certificate. We recommend <a href="https://www.namecheap.com/security/ssl-certificates/domain-validation.aspx">Namecheap&rsquo;s $9 certificate</a> or <a href="https://www.startssl.com/">StartSSL&rsquo;s free express lane</a>.</p>
+<p>There are many places where you can get a free or cheap SSL certificate. We recommend <a href="https://www.namecheap.com/security/ssl-certificates/domain-validation.aspx">Namecheap&rsquo;s $9 certificate</a>, <a href="https://www.startssl.com/">StartSSL&rsquo;s free express lane</a> or <a href="https://buy.wosign.com/free/">Wosign&rsquo;s free SSL</a></a>.</p>
 
 <p>Which domain are you getting an SSL certificate for?</p>
 

management/templates/system-backup.html

@@ -5,17 +5,77 @@
 
 <h2>Backup Status</h2>
 
-<h3>Copying Backup Files</h3>
+<p>The box makes an incremental backup each night. By default the backup is stored on the machine itself, but you can also have it stored on Amazon S3.</p>
 
-<p>The box makes an incremental backup each night. The backup is stored on the machine itself. You are responsible for copying the backup files off of the machine.</p>
+<h3>Configuration</h3>
 
-<p>Many cloud providers make this easy by allowing you to take snapshots of the machine's disk.</p>
+<form class="form-horizontal" role="form" onsubmit="set_custom_backup(); return false;">
+  <div class="form-group">
+    <label for="backup-target-type" class="col-sm-2 control-label">Backup to:</label>
+    <div class="col-sm-2">
+      <select class="form-control" rows="1" id="backup-target-type" onchange="toggle_form()">
+        <option value="off">Nowhere (Disable Backups)</option>
+        <option value="local">{{hostname}}</option>
+        <option value="s3">Amazon S3</option>
+      </select>
+    </div>
+  </div>
+  <div class="form-group backup-target-local">
+    <div class="col-sm-10 col-sm-offset-2">
+      <p>Backups are stored on this machine&rsquo;s own hard disk. You are responsible for periodically using SFTP (FTP over SSH) to copy the backup files from <tt id="backup-location"></tt> to a safe location. These files are encrypted, so they are safe to store anywhere.</p>
+      <p>Separately copy the encryption password from <tt class="backup-encpassword-file"></tt> to a safe and secure location. You will need this file to decrypt backup files.</p>
+    </div>
+  </div>
+  <div class="form-group backup-target-s3">
+    <div class="col-sm-10 col-sm-offset-2">
+      <p>Backups are stored in an Amazon Web Services S3 bucket. You must have an AWS account already.</p>
+      <p>You MUST manually copy the encryption password from <tt class="backup-encpassword-file"></tt> to a safe and secure location. You will need this file to decrypt backup files. It is NOT stored in your Amazon S3 bucket.</p>
+    </div>
+  </div>
+  <div class="form-group backup-target-local backup-target-s3">
+    <label for="min-age" class="col-sm-2 control-label">How many days should backups be kept?</label>
+    <div class="col-sm-8">
+      <input type="number" class="form-control" rows="1" id="min-age">
+    </div>
+  </div>
+  <div class="form-group backup-target-s3">
+    <label for="backup-target-s3-host" class="col-sm-2 control-label">S3 Region</label>
+    <div class="col-sm-8">
+      <select class="form-control" rows="1" id="backup-target-s3-host">
+        {% for name, host in backup_s3_hosts %}
+          <option value="{{host}}">{{name}}</option>
+        {% endfor %}
+      </select>
+    </div>
+  </div>
+  <div class="form-group backup-target-s3">
+    <label for="backup-target-s3-path" class="col-sm-2 control-label">S3 Path</label>
+    <div class="col-sm-8">
+      <input type="text" placeholder="your-bucket-name/backup-directory" class="form-control" rows="1" id="backup-target-s3-path">
+    </div>
+  </div>
+  <div class="form-group backup-target-s3">
+    <label for="backup-target-user" class="col-sm-2 control-label">S3 Access Key</label>
+    <div class="col-sm-8">
+      <input type="text" class="form-control" rows="1" id="backup-target-user">
+    </div>
+  </div>
+  <div class="form-group backup-target-s3">
+    <label for="backup-target-pass" class="col-sm-2 control-label">S3 Secret Access Key</label>
+    <div class="col-sm-8">
+      <input type="text" class="form-control" rows="1" id="backup-target-pass">
+    </div>
+  </div>
+  <div class="form-group">
+    <div class="col-sm-offset-2 col-sm-10">
+      <button id="set-s3-backup-button" type="submit" class="btn btn-primary">Save</button>
+    </div>
+  </div>
+</form>
 
-<p>You can also use SFTP (FTP over SSH) to copy files from <tt id="backup-location"></tt>. These files are encrypted, so they are safe to store anywhere. Copy the encryption password from <tt id="backup-encpassword-file"></tt> also but keep it in a safe location.</p>
+<h3>Available Backups</h3>
 
-<h3>Current Backups</h3>
+<p>The backup location currently contains the backups listed below. The total size of the backups is currently <span id="backup-total-size"></span>.</p>
-
-<p>The backup directory currently contains the backups listed below. The total size on disk of the backups is currently <span id="backup-total-size"></span>.</p>
 
 <table id="backup-status" class="table" style="width: auto">
   <thead>
@@ -27,8 +87,14 @@
   <tbody>
   </tbody>
 </table>
-
 <script>
+
+function toggle_form() {
+  var target_type = $("#backup-target-type").val();
+  $(".backup-target-local, .backup-target-s3").hide();
+  $(".backup-target-" + target_type).show();
+}
+
 function nice_size(bytes) {
   var powers = ['bytes', 'KB', 'MB', 'GB', 'TB'];
   while (true) {
@@ -46,19 +112,22 @@ function nice_size(bytes) {
 }
 
 function show_system_backup() {
+  show_custom_backup()
+  
   $('#backup-status tbody').html("<tr><td colspan='2' class='text-muted'>Loading...</td></tr>")
   api(
     "/system/backup/status",
     "GET",
     { },
     function(r) {
-      $('#backup-location').text(r.directory);
-      $('#backup-encpassword-file').text(r.encpwfile);
-
       $('#backup-status tbody').html("");
       var total_disk_size = 0;
 
-      if (r.backups.length == 0) {
+      if (typeof r.backups == "undefined") {
+        var tr = $('<tr><td colspan="3">Backups are turned off.</td></tr>');
+        $('#backup-status tbody').append(tr);
+        return;
+      } else if (r.backups.length == 0) {
         var tr = $('<tr><td colspan="3">No backups have been made yet.</td></tr>');
         $('#backup-status tbody').append(tr);
       }
@@ -83,4 +152,63 @@ function show_system_backup() {
       $('#backup-total-size').text(nice_size(total_disk_size));
     })
 }
+
+function show_custom_backup() {
+    $(".backup-target-local, .backup-target-s3").hide();
+    api(
+      "/system/backup/config",
+      "GET",
+      { },
+      function(r) {
+        if (r.target == "file://" + r.file_target_directory) {
+          $("#backup-target-type").val("local");
+        } else if (r.target == "off") {
+          $("#backup-target-type").val("off");
+        } else if (r.target.substring(0, 5) == "s3://") {
+          $("#backup-target-type").val("s3");
+	  var hostpath = r.target.substring(5).split('/');
+          var host = hostpath.shift();
+          $("#backup-target-s3-host").val(host);
+          $("#backup-target-s3-path").val(hostpath.join('/'));
+        }
+        $("#backup-target-user").val(r.target_user);
+        $("#backup-target-pass").val(r.target_pass);
+        $("#min-age").val(r.min_age_in_days);
+        $('#backup-location').text(r.file_target_directory);
+        $('.backup-encpassword-file').text(r.enc_pw_file);
+        toggle_form()
+      })
+}
+
+function set_custom_backup() {
+  var target_type = $("#backup-target-type").val();
+  var target_user = $("#backup-target-user").val();
+  var target_pass = $("#backup-target-pass").val();
+  
+  var target;
+  if (target_type == "local" || target_type == "off")
+    target = target_type;
+  else if (target_type == "s3")
+    target = "s3://" + $("#backup-target-s3-host").val() + "/" + $("#backup-target-s3-path").val();
+
+  var min_age = $("#min-age").val();
+  api(
+    "/system/backup/config",
+    "POST",
+    {
+      target: target,
+      target_user: target_user,
+      target_pass: target_pass,
+      min_age: min_age
+    },
+    function(r) {
+      // use .text() --- it's a text response, not html
+      show_modal_error("Backup configuration", $("<p/>").text(r), function() { if (r == "OK") show_system_backup(); }); // refresh after modal on success
+    },
+    function(r) {
+      // use .text() --- it's a text response, not html
+      show_modal_error("Backup configuration", $("<p/>").text(r));
+    });
+  return false;
+}
 </script>

management/templates/system-status.html

@@ -34,8 +34,20 @@
   font-family: monospace;
   white-space: pre-wrap;
 }
+
+#system-privacy-setting {
+  float: right;
+  max-width: 20em;
+  margin-bottom: 1em;
+}
 </style>
 
+<div id="system-privacy-setting" style="display: none">
+	<div><a onclick="return enable_privacy(!current_privacy_setting)" href="#"><span>Enable/Disable</span> New-Version Check</a></div>
+	<p style="line-height: 125%"><small>(When enabled, status checks phone-home to check for a new release of Mail-in-a-Box.)</small></p>
+</div>
+
+
 <table id="system-checks" class="table" style="max-width: 60em">
   <thead>
   </thead>
@@ -46,6 +58,18 @@
 <script>
 function show_system_status() {
   $('#system-checks tbody').html("<tr><td colspan='2' class='text-muted'>Loading...</td></tr>")
+
+  api(
+    "/system/privacy",
+    "GET",
+    { },
+    function(r) {
+      current_privacy_setting = r;
+      $('#system-privacy-setting').show();
+      $('#system-privacy-setting a span').text(r ? "Enable" : "Disable");
+      $('#system-privacy-setting p').toggle(r);
+    });
+
   api(
     "/system/status",
     "POST",
@@ -82,5 +106,20 @@ function show_system_status() {
         }
       }
     })
+
+}
+
+var current_privacy_setting = null;
+function enable_privacy(status) {
+  api(
+    "/system/privacy",
+    "POST",
+    {
+      value: (status ? "private" : "off")
+    },
+    function(res) {
+      show_system_status();
+    });
+  return false; // disable link
 }
 </script>

management/templates/users.html

@@ -31,10 +31,10 @@
   <button type="submit" class="btn btn-primary">Add User</button>
 </form>
 <ul style="margin-top: 1em; padding-left: 1.5em; font-size: 90%;">
-  <li>Passwords must be at least four characters and may not contain spaces.</li>
+  <li>Passwords must be at least four characters and may not contain spaces. For best results, <a href="#" onclick="return generate_random_password()">generate a random password</a>.</li>
-  <li>Use <a href="javascript:show_panel('aliases')">aliases</a> to create email addresses that forward to existing accounts.</li>
+  <li>Use <a href="#" onclick="return show_panel('aliases')">aliases</a> to create email addresses that forward to existing accounts.</li>
   <li>Administrators get access to this control panel.</li>
-  <li>User accounts cannot contain any international (non-ASCII) characters, but <a href="javascript:show_panel('aliases')">aliases</a> can.</li>
+  <li>User accounts cannot contain any international (non-ASCII) characters, but <a href="#" onclick="return show_panel('aliases');">aliases</a> can.</li>
 </ul>
 
 <h3>Existing mail users</h3>
@@ -250,4 +250,13 @@ function mod_priv(elem, add_remove) {
         });
     });
 }
+
+function generate_random_password() {
+  var pw = "";
+  var charset = "ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz23456789"; // confusable characters skipped
+  for (var i = 0; i < 10; i++)
+    pw += charset.charAt(Math.floor(Math.random() * charset.length));
+  show_modal_error("Random Password", "<p>Here, try this:</p> <p><code style='font-size: 110%'>" + pw + "</code></pr");
+  return false; // cancel click
+}
 </script>

management/templates/version.html

@@ -1,36 +0,0 @@
-<style>
-</style>
-
-<h2>Mail-in-a-Box Version</h2>
-
-<p>You are running Mail-in-a-Box version <span id="miab-version" style="font-weight: bold">...</span>.</p>
-
-<p>The latest version of Mail-in-a-Box is <button id="miab-get-latest-upstream" onclick="check_latest_version()">Check</button>.</p>
-
-<p>To find the latest version and for upgrade instructions, see <a href="https://mailinabox.email/">https://mailinabox.email/</a>, <a href="https://github.com/mail-in-a-box/mailinabox/blob/master/CHANGELOG.md">release notes</a>, and <a href="https://mailinabox.email/maintenance.html#updating-mail-in-a-box">upgrade instructions</a>.</p>
-
-<script>
-function show_version() {
- $('#miab-version').text('loading...');
- api(
-    "/system/version",
-    "GET",
-    {
-    },
-    function(version) {
-      $('#miab-version').text(version);
-    });
-}
-
-function check_latest_version() {
-  $('#miab-get-latest-upstream').text('loading...');
-  api(
-   "/system/latest-upstream-version",
-   "POST",
-   {
-   },
-   function(version) {
-      $('#miab-get-latest-upstream').text(version);
-   });
-}
-</script>

management/utils.py

@@ -1,6 +1,10 @@
 import os.path
 
-CONF_DIR = os.path.join(os.path.dirname(__file__), "../conf")
+# DO NOT import non-standard modules. This module is imported by
+# migrate.py which runs on fresh machines before anything is installed
+# besides Python.
+
+# THE ENVIRONMENT FILE AT /etc/mailinabox.conf
 
 def load_environment():
     # Load settings from /etc/mailinabox.conf.
@@ -18,38 +22,78 @@ def save_environment(env):
         for k, v in env.items():
             f.write("%s=%s\n" % (k, v))
 
+# THE SETTINGS FILE AT STORAGE_ROOT/settings.yaml.
+
+def write_settings(config, env):
+    import rtyaml
+    fn = os.path.join(env['STORAGE_ROOT'], 'settings.yaml')
+    with open(fn, "w") as f:
+        f.write(rtyaml.dump(config))
+
+def load_settings(env):
+    import rtyaml
+    fn = os.path.join(env['STORAGE_ROOT'], 'settings.yaml')
+    try:
+        config = rtyaml.load(open(fn, "r"))
+        if not isinstance(config, dict): raise ValueError() # caught below
+        return config
+    except:
+        return { }
+
+# UTILITIES
+
 def safe_domain_name(name):
     # Sanitize a domain name so it is safe to use as a file name on disk.
     import urllib.parse
     return urllib.parse.quote(name, safe='')
 
 def sort_domains(domain_names, env):
-    # Put domain names in a nice sorted order. For web_update, PRIMARY_HOSTNAME
+    # Put domain names in a nice sorted order.
-    # must appear first so it becomes the nginx default server.
+
-    
+    # The nice order will group domain names by DNS zone, i.e. the top-most
-    # First group PRIMARY_HOSTNAME and its subdomains, then parent domains of PRIMARY_HOSTNAME, then other domains.
+    # domain name that we serve that ecompasses a set of subdomains. Map
-    groups = ( [], [], [] )
+    # each of the domain names to the zone that contains them. Walk the domains
-    for d in domain_names:
+    # from shortest to longest since zones are always shorter than their
-        if d == env['PRIMARY_HOSTNAME'] or d.endswith("." + env['PRIMARY_HOSTNAME']):
+    # subdomains.
-            groups[0].append(d)
+    zones = { }
-        elif env['PRIMARY_HOSTNAME'].endswith("." + d):
+    for domain in sorted(domain_names, key=lambda d : len(d)):
-            groups[1].append(d)
+        for z in zones.values():
+            if domain.endswith("." + z):
+                # We found a parent domain already in the list.
+                zones[domain] = z
+                break
         else:
-            groups[2].append(d)
+            # 'break' did not occur: there is no parent domain, so it is its
+            # own zone.
+            zones[domain] = domain
 
-    # Within each group, sort parent domains before subdomains and after that sort lexicographically.
+    # Sort the zones.
-    def sort_group(group):
+    zone_domains = sorted(zones.values(),
-        # Find the top-most domains.
+      key = lambda d : (
-        top_domains = sorted(d for d in group if len([s for s in group if d.endswith("." + s)]) == 0)
+        # PRIMARY_HOSTNAME or the zone that contains it is always first.
-        ret = []
+        not (d == env['PRIMARY_HOSTNAME'] or env['PRIMARY_HOSTNAME'].endswith("." + d)),
-        for d in top_domains:
-            ret.append(d)
-            ret.extend( sort_group([s for s in group if s.endswith("." + d)]) )
-        return ret
-        
-    groups = [sort_group(g) for g in groups]
 
-    return groups[0] + groups[1] + groups[2]
+        # Then just dumb lexicographically.
+        d,
+      ))
+
+    # Now sort the domain names that fall within each zone.
+    domain_names = sorted(domain_names,
+      key = lambda d : (
+        # First by zone.
+        zone_domains.index(zones[d]),
+
+        # PRIMARY_HOSTNAME is always first within the zone that contains it.
+        d != env['PRIMARY_HOSTNAME'],
+
+        # Followed by any of its subdomains.
+        not d.endswith("." + env['PRIMARY_HOSTNAME']),
+
+        # Then in right-to-left lexicographic order of the .-separated parts of the name.
+        list(reversed(d.split("."))),
+      ))
+    
+    return domain_names
 
 def sort_email_addresses(email_addresses, env):
     email_addresses = set(email_addresses)
@@ -200,3 +244,12 @@ def wait_for_service(port, public, env, timeout):
 			if time.perf_counter() > start+timeout:
 				return False
 		time.sleep(min(timeout/4, 1))
+
+if __name__ == "__main__":
+	from dns_update import get_dns_domains
+	from web_update import get_web_domains, get_default_www_redirects
+	env = load_environment()
+	domains = get_dns_domains(env) | set(get_web_domains(env) + get_default_www_redirects(env))
+	domains = sort_domains(domains, env)
+	for domain in domains:
+		print(domain)

management/web_update.py

@@ -32,7 +32,7 @@ def get_domains_with_a_records(env):
 	domains = set()
 	dns = get_custom_dns_config(env)
 	for domain, rtype, value in dns:
-		if rtype == "CNAME" or (rtype in ("A", "AAAA") and value != "local"):
+		if rtype == "CNAME" or (rtype in ("A", "AAAA") and value not in ("local", env['PUBLIC_IP'])):
 			domains.add(domain)
 	return domains
 
@@ -60,6 +60,9 @@ def get_default_www_redirects(env):
 	return sort_domains(www_domains - web_domains - get_domains_with_a_records(env), env)
 
 def do_web_update(env):
+	# Pre-load what SSL certificates we will use for each domain.
+	ssl_certificates = get_ssl_certificates(env)
+
 	# Build an nginx configuration file.
 	nginx_conf = open(os.path.join(os.path.dirname(__file__), "../conf/nginx-top.conf")).read()
 
@@ -70,20 +73,20 @@ def do_web_update(env):
 	template3 = "\trewrite ^(.*) https://$REDIRECT_DOMAIN$1 permanent;\n"
 
 	# Add the PRIMARY_HOST configuration first so it becomes nginx's default server.
-	nginx_conf += make_domain_config(env['PRIMARY_HOSTNAME'], [template0, template1, template2], env)
+	nginx_conf += make_domain_config(env['PRIMARY_HOSTNAME'], [template0, template1, template2], ssl_certificates, env)
 
 	# Add configuration all other web domains.
 	has_root_proxy_or_redirect = get_web_domains_with_root_overrides(env)
 	for domain in get_web_domains(env):
 		if domain == env['PRIMARY_HOSTNAME']: continue # handled above
 		if domain not in has_root_proxy_or_redirect:
-			nginx_conf += make_domain_config(domain, [template0, template1], env)
+			nginx_conf += make_domain_config(domain, [template0, template1], ssl_certificates, env)
 		else:
-			nginx_conf += make_domain_config(domain, [template0], env)
+			nginx_conf += make_domain_config(domain, [template0], ssl_certificates, env)
 
 	# Add default www redirects.
 	for domain in get_default_www_redirects(env):
-		nginx_conf += make_domain_config(domain, [template0, template3], env)
+		nginx_conf += make_domain_config(domain, [template0, template3], ssl_certificates, env)
 
 	# Did the file change? If not, don't bother writing & restarting nginx.
 	nginx_conf_fn = "/etc/nginx/conf.d/local.conf"
@@ -104,18 +107,14 @@ def do_web_update(env):
 
 	return "web updated\n"
 
-def make_domain_config(domain, templates, env):
+def make_domain_config(domain, templates, ssl_certificates, env):
 	# GET SOME VARIABLES
 
 	# Where will its root directory be for static files?
 	root = get_web_root(domain, env)
 
 	# What private key and SSL certificate will we use for this domain?
-	ssl_key, ssl_certificate, ssl_via = get_domain_ssl_files(domain, env)
+	ssl_key, ssl_certificate, ssl_via = get_domain_ssl_files(domain, ssl_certificates, env)
-
-	# For hostnames created after the initial setup, ensure we have an SSL certificate
-	# available. Make a self-signed one now if one doesn't exist.
-	ensure_ssl_certificate_exists(domain, ssl_key, ssl_certificate, env)
 
 	# ADDITIONAL DIRECTIVES.
 
@@ -135,16 +134,28 @@ def make_domain_config(domain, templates, env):
 	nginx_conf_extra += "# ssl files sha1: %s / %s\n" % (hashfile(ssl_key), hashfile(ssl_certificate))
 
 	# Add in any user customizations in YAML format.
+	hsts = "yes"
 	nginx_conf_custom_fn = os.path.join(env["STORAGE_ROOT"], "www/custom.yaml")
 	if os.path.exists(nginx_conf_custom_fn):
 		yaml = rtyaml.load(open(nginx_conf_custom_fn))
 		if domain in yaml:
 			yaml = yaml[domain]
+
+			# any proxy or redirect here?
 			for path, url in yaml.get("proxies", {}).items():
 				nginx_conf_extra += "\tlocation %s {\n\t\tproxy_pass %s;\n\t}\n" % (path, url)
 			for path, url in yaml.get("redirects", {}).items():
 				nginx_conf_extra += "\trewrite %s %s permanent;\n" % (path, url)
 
+			# override the HSTS directive type
+			hsts = yaml.get("hsts", hsts)
+
+	# Add the HSTS header.
+	if hsts == "yes":
+		nginx_conf_extra += "add_header Strict-Transport-Security max-age=31536000;\n"
+	elif hsts == "preload":
+		nginx_conf_extra += "add_header Strict-Transport-Security \"max-age=10886400; includeSubDomains; preload\";\n"
+
 	# Add in any user customizations in the includes/ folder.
 	nginx_conf_custom_include = os.path.join(env["STORAGE_ROOT"], "www", safe_domain_name(domain) + ".conf")
 	if os.path.exists(nginx_conf_custom_include):
@@ -174,77 +185,140 @@ def get_web_root(domain, env, test_exists=True):
 		if os.path.exists(root) or not test_exists: break
 	return root
 
-def get_domain_ssl_files(domain, env, allow_shared_cert=True):
+def get_ssl_certificates(env):
-	# What SSL private key will we use? Allow the user to override this, but
+	# Scan all of the installed SSL certificates and map every domain
-	# in many cases using the same private key for all domains would be fine.
+	# that the certificates are good for to the best certificate for
-	# Don't allow the user to override the key for PRIMARY_HOSTNAME because
+	# the domain.
-	# that's what's in the main file.
+
-	ssl_key = os.path.join(env["STORAGE_ROOT"], 'ssl/ssl_private_key.pem')
+	from cryptography.hazmat.primitives.asymmetric.rsa import RSAPrivateKey
-	ssl_key_is_alt = False
+	from cryptography.x509 import Certificate
-	alt_key = os.path.join(env["STORAGE_ROOT"], 'ssl/%s/private_key.pem' % safe_domain_name(domain))
+
-	if domain != env['PRIMARY_HOSTNAME'] and os.path.exists(alt_key):
+	# The certificates are all stored here:
-		ssl_key = alt_key
+	ssl_root = os.path.join(env["STORAGE_ROOT"], 'ssl')
-		ssl_key_is_alt = True
+
+	# List all of the files in the SSL directory and one level deep.
+	def get_file_list():
+		for fn in os.listdir(ssl_root):
+			fn = os.path.join(ssl_root, fn)
+			if os.path.isfile(fn):
+				yield fn
+			elif os.path.isdir(fn):
+				for fn1 in os.listdir(fn):
+					fn1 = os.path.join(fn, fn1)
+					if os.path.isfile(fn1):
+						yield fn1
+
+	# Remember stuff.
+	private_keys = { }
+	certificates = [ ]
+
+	# Scan each of the files to find private keys and certificates.
+	# We must load all of the private keys first before processing
+	# certificates so that we can check that we have a private key
+	# available before using a certificate.
+	from status_checks import load_cert_chain, load_pem
+	for fn in get_file_list():
+		try:
+			pem = load_pem(load_cert_chain(fn)[0])
+		except ValueError:
+			# Not a valid PEM format for a PEM type we care about.
+			continue
+
+		# Remember where we got this object.
+		pem._filename = fn
+
+		# Is it a private key?
+		if isinstance(pem, RSAPrivateKey):
+			private_keys[pem.public_key().public_numbers()] = pem
+
+		# Is it a certificate?
+		if isinstance(pem, Certificate):
+			certificates.append(pem)
+
+	# Process the certificates.
+	domains = { }
+	from status_checks import get_certificate_domains
+	for cert in certificates:
+		# What domains is this certificate good for?
+		cert_domains, primary_domain = get_certificate_domains(cert)
+		cert._primary_domain = primary_domain
+
+		# Is there a private key file for this certificate?
+		private_key = private_keys.get(cert.public_key().public_numbers())
+		if not private_key:
+			continue
+		cert._private_key = private_key
+
+		# Add this cert to the list of certs usable for the domains.
+		for domain in cert_domains:
+			domains.setdefault(domain, []).append(cert)
+
+	# Sort the certificates to prefer good ones.
+	import datetime
+	now = datetime.datetime.utcnow()
+	ret = { }
+	for domain, cert_list in domains.items():
+		cert_list.sort(key = lambda cert : (
+			# must be valid NOW
+			cert.not_valid_before <= now <= cert.not_valid_after,
+
+			# prefer one that is not self-signed
+			cert.issuer != cert.subject,
+
+			# prefer one with the expiration furthest into the future so
+			# that we can easily rotate to new certs as we get them
+			cert.not_valid_after,
+
+			# in case a certificate is installed in multiple paths,
+			# prefer the... lexicographically last one?
+			cert._filename,
+
+		), reverse=True)
+		cert = cert_list.pop(0)
+		ret[domain] = {
+			"private-key": cert._private_key._filename,
+			"certificate": cert._filename,
+			"primary-domain": cert._primary_domain,
+			}
+
+	return ret
+
+def get_domain_ssl_files(domain, ssl_certificates, env, allow_missing_cert=False):
+	# Get the default paths.
+	ssl_private_key = os.path.join(os.path.join(env["STORAGE_ROOT"], 'ssl', 'ssl_private_key.pem'))
+	ssl_certificate = os.path.join(os.path.join(env["STORAGE_ROOT"], 'ssl', 'ssl_certificate.pem'))
 
-	# What SSL certificate will we use?
-	ssl_certificate_primary = os.path.join(env["STORAGE_ROOT"], 'ssl/ssl_certificate.pem')
-	ssl_via = None
 	if domain == env['PRIMARY_HOSTNAME']:
-		# For PRIMARY_HOSTNAME, use the one we generated at set-up time.
+		# The primary domain must use the server certificate because
-		ssl_certificate = ssl_certificate_primary
+		# it is hard-coded in some service configuration files.
+		return ssl_private_key, ssl_certificate, None
+
+	wildcard_domain = re.sub("^[^\.]+", "*", domain)
+
+	if domain in ssl_certificates:
+		cert_info = ssl_certificates[domain]
+		cert_type = "multi-domain"
+	elif wildcard_domain in ssl_certificates:
+		cert_info = ssl_certificates[wildcard_domain]
+		cert_type = "wildcard"
+	elif not allow_missing_cert:
+		# No certificate is available for this domain! Return default files.
+		ssl_via = "Using certificate for %s." % env['PRIMARY_HOSTNAME']
+		return ssl_private_key, ssl_certificate, ssl_via
 	else:
-		# For other domains, we'll probably use a certificate in a different path.
+		# No certificate is available - and warn appropriately.
-		ssl_certificate = os.path.join(env["STORAGE_ROOT"], 'ssl/%s/ssl_certificate.pem' % safe_domain_name(domain))
+		return None
 
-		# But we can be smart and reuse the main SSL certificate if is has
+	# 'via' is a hint to the user about which certificate is in use for the domain
-		# a Subject Alternative Name matching this domain. Don't do this if
+	if cert_info['certificate'] == os.path.join(env["STORAGE_ROOT"], 'ssl', 'ssl_certificate.pem'):
-		# the user has uploaded a different private key for this domain.
+		# Using the server certificate.
-		if not ssl_key_is_alt and allow_shared_cert:
+		via = "Using same %s certificate as for %s." % (cert_type, env['PRIMARY_HOSTNAME'])
-			from status_checks import check_certificate
+	elif cert_info['primary-domain'] != domain and cert_info['primary-domain'] in ssl_certificates and cert_info == ssl_certificates[cert_info['primary-domain']]:
-			if check_certificate(domain, ssl_certificate_primary, None, just_check_domain=True)[0] == "OK":
+		via = "Using same %s certificate as for %s." % (cert_type, cert_info['primary-domain'])
-				ssl_certificate = ssl_certificate_primary
+	else:
-				ssl_via = "Using multi/wildcard certificate of %s." % env['PRIMARY_HOSTNAME']
+		via = None # don't show a hint - show expiration info instead
 
-			# For a 'www.' domain, see if we can reuse the cert of the parent.
+	return cert_info['private-key'], cert_info['certificate'], via
-			elif domain.startswith('www.'):
-				ssl_certificate_parent = os.path.join(env["STORAGE_ROOT"], 'ssl/%s/ssl_certificate.pem' % safe_domain_name(domain[4:]))
-				if os.path.exists(ssl_certificate_parent) and check_certificate(domain, ssl_certificate_parent, None, just_check_domain=True)[0] == "OK":
-					ssl_certificate = ssl_certificate_parent
-					ssl_via = "Using multi/wildcard certificate of %s." % domain[4:]
-
-	return ssl_key, ssl_certificate, ssl_via
-
-def ensure_ssl_certificate_exists(domain, ssl_key, ssl_certificate, env):
-	# For domains besides PRIMARY_HOSTNAME, generate a self-signed certificate if
-	# a certificate doesn't already exist. See setup/mail.sh for documentation.
-
-	if domain == env['PRIMARY_HOSTNAME']:
-		return
-
-	# Sanity check. Shouldn't happen. A non-primary domain might use this
-	# certificate (see above), but then the certificate should exist anyway.
-	if ssl_certificate == os.path.join(env["STORAGE_ROOT"], 'ssl/ssl_certificate.pem'):
-		return
-
-	if os.path.exists(ssl_certificate):
-		return
-
-	os.makedirs(os.path.dirname(ssl_certificate), exist_ok=True)
-
-	# Generate a new self-signed certificate using the same private key that we already have.
-
-	# Start with a CSR written to a temporary file.
-	with tempfile.NamedTemporaryFile(mode="w") as csr_fp:
-		csr_fp.write(create_csr(domain, ssl_key, env))
-		csr_fp.flush() # since we won't close until after running 'openssl x509', since close triggers delete.
-
-		# And then make the certificate.
-		shell("check_call", [
-			"openssl", "x509", "-req",
-			"-days", "365",
-			"-in", csr_fp.name,
-			"-signkey", ssl_key,
-			"-out", ssl_certificate])
 
 def create_csr(domain, ssl_key, env):
 	return shell("check_output", [
@@ -266,8 +340,8 @@ def install_cert(domain, ssl_cert, ssl_chain, env):
 
 	# Do validation on the certificate before installing it.
 	from status_checks import check_certificate
-	ssl_key, ssl_certificate, ssl_via = get_domain_ssl_files(domain, env, allow_shared_cert=False)
+	ssl_private_key = os.path.join(os.path.join(env["STORAGE_ROOT"], 'ssl', 'ssl_private_key.pem'))
-	cert_status, cert_status_details = check_certificate(domain, fn, ssl_key)
+	cert_status, cert_status_details = check_certificate(domain, fn, ssl_private_key)
 	if cert_status != "OK":
 		if cert_status == "SELF-SIGNED":
 			cert_status = "This is a self-signed certificate. I can't install that."
@@ -276,7 +350,24 @@ def install_cert(domain, ssl_cert, ssl_chain, env):
 			cert_status += " " + cert_status_details
 		return cert_status
 
-	# Copy the certificate to its expected location.
+	# Where to put it?
+	if domain == env['PRIMARY_HOSTNAME']:
+		ssl_certificate = os.path.join(os.path.join(env["STORAGE_ROOT"], 'ssl', 'ssl_certificate.pem'))
+	else:
+		# Make a unique path for the certificate.
+		from status_checks import load_cert_chain, load_pem, get_certificate_domains
+		from cryptography.hazmat.primitives import hashes
+		from binascii import hexlify
+		cert = load_pem(load_cert_chain(fn)[0])
+		all_domains, cn = get_certificate_domains(cert)
+		path = "%s-%s-%s" % (
+			cn, # common name
+			cert.not_valid_after.date().isoformat().replace("-", ""), # expiration date
+			hexlify(cert.fingerprint(hashes.SHA256())).decode("ascii")[0:8], # fingerprint prefix
+			)
+		ssl_certificate = os.path.join(os.path.join(env["STORAGE_ROOT"], 'ssl', path, 'ssl_certificate.pem'))
+
+	# Install the certificate.
 	os.makedirs(os.path.dirname(ssl_certificate), exist_ok=True)
 	shutil.move(fn, ssl_certificate)
 
@@ -302,9 +393,10 @@ def get_web_domains_info(env):
 	# for the SSL config panel, get cert status
 	def check_cert(domain):
 		from status_checks import check_certificate
-		ssl_key, ssl_certificate, ssl_via = get_domain_ssl_files(domain, env)
+		ssl_certificates = get_ssl_certificates(env)
-		if not os.path.exists(ssl_certificate):
+		x = get_domain_ssl_files(domain, ssl_certificates, env, allow_missing_cert=True)
-			return ("danger", "No Certificate Installed")
+		if x is None: return ("danger", "No Certificate Installed")
+		ssl_key, ssl_certificate, ssl_via = x
 		cert_status, cert_status_details = check_certificate(domain, ssl_certificate, ssl_key)
 		if cert_status == "OK":
 			if not ssl_via:

security.md

@@ -17,8 +17,11 @@ The primary goal of Mail-in-a-Box is to make deploying a good mail server easy,
 
 On the other hand, we do assume that adversaries are performing passive surveillance and, possibly, active man-in-the-middle attacks. And so:
 
-* User credentials are always sent through SSH/TLS, never in the clear.
+* User credentials are always sent through SSH/TLS, never in the clear, with modern TLS settings.
-* Outbound mail is sent with the highest level of TLS possible (more on that below).
+* Outbound mail is sent with the highest level of TLS possible.
+* The box advertises its support for [DANE TLSA](https://en.wikipedia.org/wiki/DNS-based_Authentication_of_Named_Entities), when DNSSEC is enabled at the domain name registrar, so that inbound mail is more likely to be transmitted securely.
+
+Additional details follow.
 
 User Credentials
 ----------------
@@ -89,7 +92,9 @@ Domain policy records allow recipient MTAs to detect when the _domain_ part of o
 
 ### User Policy
 
-While domain policy records prevent other servers from sending mail with a "From:" header that matches a domain hosted on the box (see above), those policy records do not guarnatee that the user portion of the sender email address matches the actual sender. In enterprise environments where the box may host the mail of untrusted users, it is important to guard against users impersonating other users. The box restricts the envelope sender address that users may put into outbound mail to either a) their own email address (their SMTP login username) or b) any alias that they are listed as a direct recipient of. Note that the envelope sender address is not the same as the "From:" header.
+While domain policy records prevent other servers from sending mail with a "From:" header that matches a domain hosted on the box (see above), those policy records do not guarnatee that the user portion of the sender email address matches the actual sender. In enterprise environments where the box may host the mail of untrusted users, it is important to guard against users impersonating other users.
+
+The box restricts the envelope sender address (also called the return path or MAIL FROM address --- this is different from the "From:" header) that users may put into outbound mail. The envelope sender address must be either their own email address (their SMTP login username) or any alias that they are listed as a permitted sender of. (There is currently no restriction on the contents of the "From:" header.)
 
 Incoming Mail
 -------------

setup/bootstrap.sh

@@ -7,7 +7,7 @@
 #########################################################
 
 if [ -z "$TAG" ]; then
-	TAG=v0.12c
+	TAG=v0.14
 fi
 
 # Are we running as root?

setup/dkim.sh

@@ -10,6 +10,7 @@ source setup/functions.sh # load our functions
 source /etc/mailinabox.conf # load global vars
 
 # Install DKIM...
+echo Installing OpenDKIM/OpenDMARC...
 apt_install opendkim opendkim-tools opendmarc
 
 # Make sure configuration directories exist.

setup/dns.sh

@@ -15,7 +15,7 @@ source /etc/mailinabox.conf # load global vars
 # * nsd: The non-recursive nameserver that publishes our DNS records.
 # * ldnsutils: Helper utilities for signing DNSSEC zones.
 # * openssh-client: Provides ssh-keyscan which we use to create SSHFP records.
-
+echo "Installing nsd (DNS server)..."
 apt_install nsd ldnsutils openssh-client
 
 # Prepare nsd's configuration.

setup/firstuser.sh

@@ -53,5 +53,5 @@ if [ -z "`tools/mail.py user`" ]; then
 	hide_output tools/mail.py user make-admin $EMAIL_ADDR
 
 	# Create an alias to which we'll direct all automatically-created administrative aliases.
-	tools/mail.py alias add administrator@$PRIMARY_HOSTNAME $EMAIL_ADDR
+	tools/mail.py alias add administrator@$PRIMARY_HOSTNAME $EMAIL_ADDR > /dev/null
 fi

setup/functions.sh

@@ -39,32 +39,12 @@ function apt_get_quiet {
 }
 
 function apt_install {
-	# Report any packages already installed.
+	# Install a bunch of packages. We used to report which packages were already
+	# installed and which needed installing, before just running an 'apt-get
+	# install' for all of the packages.  Calling `dpkg` on each package is slow,
+	# and doesn't affect what we actually do, except in the messages, so let's
+	# not do that anymore.
 	PACKAGES=$@
-	TO_INSTALL=""
-	ALREADY_INSTALLED=""
-	for pkg in $PACKAGES; do
-		if dpkg -s $pkg 2>/dev/null | grep "^Status: install ok installed" > /dev/null; then
-			if [[ ! -z "$ALREADY_INSTALLED" ]]; then ALREADY_INSTALLED="$ALREADY_INSTALLED, "; fi
-			ALREADY_INSTALLED="$ALREADY_INSTALLED$pkg (`dpkg -s $pkg | grep ^Version: | sed -e 's/.*: //'`)"
-		else
-			TO_INSTALL="$TO_INSTALL""$pkg "
-		fi
-	done
-
-	# List the packages already installed.
-	if [[ ! -z "$ALREADY_INSTALLED" ]]; then
-		echo already installed: $ALREADY_INSTALLED
-	fi
-
-	# List the packages about to be installed.
-	if [[ ! -z "$TO_INSTALL" ]]; then
-		echo installing $TO_INSTALL...
-	fi
-
-	# We still include the whole original package list in the apt-get command in
-	# case it wants to upgrade anything, I guess? Maybe we can remove it. Doesn't normally make
-	# a difference.
 	apt_get_quiet install $PACKAGES
 }
 

setup/mail-dovecot.sh

@@ -23,6 +23,7 @@ source /etc/mailinabox.conf # load global vars
 # but dovecot-lucene is packaged by *us* in the Mail-in-a-Box PPA,
 # not by Ubuntu.
 
+echo "Installing Dovecot (IMAP server)..."
 apt_install \
 	dovecot-core dovecot-imapd dovecot-pop3d dovecot-lmtpd dovecot-sqlite sqlite3 \
 	dovecot-sieve dovecot-managesieved dovecot-lucene
@@ -55,6 +56,9 @@ tools/editconf.py /etc/dovecot/conf.d/10-mail.conf \
 	mail_privileged_group=mail \
 	first_valid_uid=0
 
+# Create, subscribe, and mark as special folders: INBOX, Drafts, Sent, Trash, Spam and Archive.
+cp conf/dovecot-mailboxes.conf /etc/dovecot/conf.d/15-mailboxes.conf
+
 # ### IMAP/POP
 
 # Require that passwords are sent over SSL only, and allow the usual IMAP authentication mechanisms.
@@ -150,6 +154,12 @@ sed -i "s/#mail_plugins = .*/mail_plugins = \$mail_plugins sieve/" /etc/dovecot/
 #
 # * `sieve_before`: The path to our global sieve which handles moving spam to the Spam folder.
 #
+# * `sieve_before2`: The path to our global sieve directory for sieve which can contain .sieve files
+# to run globally for every user before their own sieve files run.
+#
+# * `sieve_after`: The path to our global sieve directory which can contain .sieve files
+# to run globally for every user after their own sieve files run.
+#
 # * `sieve`: The path to the user's main active script. ManageSieve will create a symbolic
 # link here to the actual sieve script. It should not be in the mailbox directory
 # (because then it might appear as a folder) and it should not be in the sieve_dir
@@ -159,6 +169,8 @@ sed -i "s/#mail_plugins = .*/mail_plugins = \$mail_plugins sieve/" /etc/dovecot/
 cat > /etc/dovecot/conf.d/99-local-sieve.conf << EOF;
 plugin {
   sieve_before = /etc/dovecot/sieve-spam.sieve
+  sieve_before2 = $STORAGE_ROOT/mail/sieve/global_before
+  sieve_after = $STORAGE_ROOT/mail/sieve/global_after
   sieve = $STORAGE_ROOT/mail/sieve/%d/%n.sieve
   sieve_dir = $STORAGE_ROOT/mail/sieve/%d/%n
 }
@@ -182,6 +194,8 @@ chown -R mail.mail $STORAGE_ROOT/mail/mailboxes
 
 # Same for the sieve scripts.
 mkdir -p $STORAGE_ROOT/mail/sieve
+mkdir -p $STORAGE_ROOT/mail/sieve/global_before
+mkdir -p $STORAGE_ROOT/mail/sieve/global_after
 chown -R mail.mail $STORAGE_ROOT/mail/sieve
 
 # Allow the IMAP/POP ports in the firewall.

setup/mail-postfix.sh

@@ -49,6 +49,7 @@ source /etc/mailinabox.conf # load global vars
 # > infrastructure and every commercial vendor of dnswl.org data (eg through
 # > anti-spam solutions) must register with dnswl.org and purchase a subscription.
 
+echo "Installing Postfix (SMTP server)..."
 apt_install postfix postfix-pcre postgrey ca-certificates
 
 # ### Basic Settings
@@ -93,6 +94,12 @@ tools/editconf.py /etc/postfix/master.cf -s -w \
 # Install the `outgoing_mail_header_filters` file required by the new 'authclean' service.
 cp conf/postfix_outgoing_mail_header_filters /etc/postfix/outgoing_mail_header_filters
 
+# Modify the `outgoing_mail_header_filters` file to use the local machine name and ip 
+# on the first received header line.  This may help reduce the spam score of email by
+# removing the 127.0.0.1 reference.
+sed -i "s/PRIMARY_HOSTNAME/$PRIMARY_HOSTNAME/" /etc/postfix/outgoing_mail_header_filters
+sed -i "s/PUBLIC_IP/$PUBLIC_IP/" /etc/postfix/outgoing_mail_header_filters
+
 # Enable TLS on these and all other connections (i.e. ports 25 *and* 587) and
 # require TLS before a user is allowed to authenticate. This also makes
 # opportunistic TLS available on *incoming* mail.

setup/mail-users.sh

@@ -5,7 +5,7 @@
 #
 # This script configures user authentication for Dovecot
 # and Postfix (which relies on Dovecot) and destination
-# validation by quering an Sqlite3 database of mail users. 
+# validation by quering an Sqlite3 database of mail users.
 
 source setup/functions.sh # load our functions
 source /etc/mailinabox.conf # load global vars
@@ -21,7 +21,7 @@ db_path=$STORAGE_ROOT/mail/users.sqlite
 if [ ! -f $db_path ]; then
 	echo Creating new user database: $db_path;
 	echo "CREATE TABLE users (id INTEGER PRIMARY KEY AUTOINCREMENT, email TEXT NOT NULL UNIQUE, password TEXT NOT NULL, extra, privileges TEXT NOT NULL DEFAULT '');" | sqlite3 $db_path;
-	echo "CREATE TABLE aliases (id INTEGER PRIMARY KEY AUTOINCREMENT, source TEXT NOT NULL UNIQUE, destination TEXT NOT NULL);" | sqlite3 $db_path;
+	echo "CREATE TABLE aliases (id INTEGER PRIMARY KEY AUTOINCREMENT, source TEXT NOT NULL UNIQUE, destination TEXT NOT NULL, permitted_senders TEXT);" | sqlite3 $db_path;
 fi
 
 # ### User Authentication
@@ -71,18 +71,23 @@ tools/editconf.py /etc/postfix/main.cf \
 
 # ### Sender Validation
 
-# Use a Sqlite3 database to set login maps. This is used with
+# We use Postfix's reject_authenticated_sender_login_mismatch filter to
-# reject_authenticated_sender_login_mismatch to see if user is
+# prevent intra-domain spoofing by logged in but untrusted users in outbound
-# allowed to send mail using FROM field specified in the request.
+# email. In all outbound mail (the sender has authenticated), the MAIL FROM
+# address (aka envelope or return path address) must be "owned" by the user
+# who authenticated. An SQL query will find who are the owners of any given
+# address.
 tools/editconf.py /etc/postfix/main.cf \
 	smtpd_sender_login_maps=sqlite:/etc/postfix/sender-login-maps.cf
 
-# SQL statement to set login map which includes the case when user is
+# Postfix will query the exact address first, where the priority will be alias
-# sending email using a valid alias.
+# records first, then user records. If there are no matches for the exact
-# This is the same as virtual-alias-maps.cf, See below
+# address, then Postfix will query just the domain part, which we call
+# catch-alls and domain aliases. A NULL permitted_senders column means to
+# take the value from the destination column.
 cat > /etc/postfix/sender-login-maps.cf << EOF;
 dbpath=$db_path
-query = SELECT destination from (SELECT destination, 0 as priority FROM aliases WHERE source='%s' UNION SELECT email as destination, 1 as priority FROM users WHERE email='%s') ORDER BY priority LIMIT 1;
+query = SELECT permitted_senders FROM (SELECT permitted_senders, 0 AS priority FROM aliases WHERE source='%s' AND permitted_senders IS NOT NULL UNION SELECT destination AS permitted_senders, 1 AS priority FROM aliases WHERE source='%s' AND permitted_senders IS NULL UNION SELECT email as permitted_senders, 2 AS priority FROM users WHERE email='%s') ORDER BY priority LIMIT 1;
 EOF
 
 # ### Destination Validation
@@ -95,13 +100,13 @@ tools/editconf.py /etc/postfix/main.cf \
 	virtual_alias_maps=sqlite:/etc/postfix/virtual-alias-maps.cf \
 	local_recipient_maps=\$virtual_mailbox_maps
 
-# SQL statement to check if we handle mail for a domain, either for users or aliases.
+# SQL statement to check if we handle incoming mail for a domain, either for users or aliases.
 cat > /etc/postfix/virtual-mailbox-domains.cf << EOF;
 dbpath=$db_path
 query = SELECT 1 FROM users WHERE email LIKE '%%@%s' UNION SELECT 1 FROM aliases WHERE source LIKE '%%@%s'
 EOF
 
-# SQL statement to check if we handle mail for a user.
+# SQL statement to check if we handle incoming mail for a user.
 cat > /etc/postfix/virtual-mailbox-maps.cf << EOF;
 dbpath=$db_path
 query = SELECT 1 FROM users WHERE email='%s'
@@ -127,9 +132,13 @@ EOF
 # might be returned by the UNION, so the whole query is wrapped in
 # another select that prioritizes the alias definition to preserve
 # postfix's preference for aliases for whole email addresses.
+#
+# Since we might have alias records with an empty destination because
+# it might have just permitted_senders, skip any records with an
+# empty destination here so that other lower priority rules might match.
 cat > /etc/postfix/virtual-alias-maps.cf << EOF;
 dbpath=$db_path
-query = SELECT destination from (SELECT destination, 0 as priority FROM aliases WHERE source='%s' UNION SELECT email as destination, 1 as priority FROM users WHERE email='%s') ORDER BY priority LIMIT 1;
+query = SELECT destination from (SELECT destination, 0 as priority FROM aliases WHERE source='%s' AND destination<>'' UNION SELECT email as destination, 1 as priority FROM users WHERE email='%s') ORDER BY priority LIMIT 1;
 EOF
 
 # Restart Services

setup/management.sh

@@ -2,11 +2,17 @@
 
 source setup/functions.sh
 
+echo "Installing Mail-in-a-Box system management daemon..."
+
 # build-essential libssl-dev libffi-dev python3-dev: Required to pip install cryptography.
 apt_install python3-flask links duplicity libyaml-dev python3-dnspython python3-dateutil \
-	build-essential libssl-dev libffi-dev python3-dev
+	build-essential libssl-dev libffi-dev python3-dev python-pip
-hide_output pip3 install --upgrade rtyaml email_validator idna cryptography
+hide_output pip3 install --upgrade rtyaml email_validator>=1.0.0 idna>=2.0.0 cryptography>=1.0.2 boto
-	# email_validator is repeated in setup/questions.sh
+
+# duplicity uses python 2 so we need to use the python 2 package of boto
+hide_output pip install --upgrade boto
+
+# email_validator is repeated in setup/questions.sh
 
 # Create a backup directory and a random key for encrypting backups.
 mkdir -p $STORAGE_ROOT/backup

setup/migrate.py

@@ -101,6 +101,16 @@ def migration_8(env):
 	# a new key, which will be 2048 bits.
 	os.unlink(os.path.join(env['STORAGE_ROOT'], 'mail/dkim/mail.private'))
 
+def migration_9(env):
+	# Add a column to the aliases table to store permitted_senders,
+	# which is a list of user account email addresses that are
+	# permitted to send mail using this alias instead of their own
+	# address. This was motivated by the addition of #427 ("Reject
+	# outgoing mail if FROM does not match Login") - which introduced
+	# the notion of outbound permitted-senders.
+	db = os.path.join(env["STORAGE_ROOT"], 'mail/users.sqlite')
+	shell("check_call", ["sqlite3", db, "ALTER TABLE aliases ADD permitted_senders TEXT"])
+
 def get_current_migration():
 	ver = 0
 	while True:

setup/munin.sh

@@ -6,6 +6,7 @@ source setup/functions.sh # load our functions
 source /etc/mailinabox.conf # load global vars
 
 # install Munin
+echo "Installing Munin (system monitoring)..."
 apt_install munin munin-node
 
 # edit config
@@ -28,5 +29,33 @@ contact.admin.command mail -s "Munin notification ${var:host}" administrator@$PR
 contact.admin.always_send warning critical
 EOF
 
+# ensure munin-node knows the name of this machine
+tools/editconf.py /etc/munin/munin-node.conf -s \
+	host_name=$PRIMARY_HOSTNAME
+
+# Update the activated plugins through munin's autoconfiguration.
+munin-node-configure --shell --remove-also 2>/dev/null | sh
+
+# Deactivate monitoring of NTP peers. Not sure why anyone would want to monitor a NTP peer. The addresses seem to change
+# (which is taken care of my munin-node-configure, but only when we re-run it.)
+find /etc/munin/plugins/ -lname /usr/share/munin/plugins/ntp_ -print0 | xargs -0 /bin/rm -f
+
+# Deactivate monitoring of network interfaces that are not up. Otherwise we can get a lot of empty charts.
+for f in $(find /etc/munin/plugins/ \( -lname /usr/share/munin/plugins/if_ -o -lname /usr/share/munin/plugins/if_err_ -o -lname /usr/share/munin/plugins/bonding_err_ \)); do
+	IF=$(echo $f | sed s/.*_//);
+	if ! ifquery $IF >/dev/null 2>/dev/null; then
+		rm $f;
+	fi;
+done
+
+# Create a 'state' directory. Not sure why we need to do this manually.
+mkdir -p /var/lib/munin-node/plugin-state/
+
+# Restart services.
+restart_service munin
+restart_service munin-node
+
 # generate initial statistics so the directory isn't empty
-sudo -u munin munin-cron
+# (We get "Pango-WARNING **: error opening config file '/root/.config/pango/pangorc': Permission denied"
+# if we don't explicitly set the HOME directory when sudo'ing.)
+sudo -H -u munin munin-cron

setup/owncloud.sh

@@ -7,16 +7,18 @@ source /etc/mailinabox.conf # load global vars
 
 # ### Installing ownCloud
 
+echo "Installing ownCloud (contacts/calendar)..."
+
 apt_install \
 	dbconfig-common \
 	php5-cli php5-sqlite php5-gd php5-imap php5-curl php-pear php-apc curl libapr1 libtool libcurl4-openssl-dev php-xml-parser \
-	php5 php5-dev php5-gd php5-fpm memcached php5-memcache unzip
+	php5 php5-dev php5-gd php5-fpm memcached php5-memcached unzip
 
 apt-get purge -qq -y owncloud*
 
 # Install ownCloud from source of this version:
-owncloud_ver=8.0.4
+owncloud_ver=8.1.1
-owncloud_hash=625b1c561ea51426047a3e79eda51ca05e9f978a
+owncloud_hash=34077e78575a3e689825a00964ee37fbf83fbdda
 
 # Migrate <= v0.10 setups that stored the ownCloud config.php in /usr/local rather than
 # in STORAGE_ROOT. Move the file to STORAGE_ROOT.
@@ -35,7 +37,6 @@ if [ ! -d /usr/local/lib/owncloud/ ] \
 	|| ! grep -q $owncloud_ver /usr/local/lib/owncloud/version.php; then
 
 	# Download and verify
-	echo "installing ownCloud..."
 	wget_verify https://download.owncloud.org/community/owncloud-$owncloud_ver.zip $owncloud_hash /tmp/owncloud.zip
 
 	# Clear out the existing ownCloud.
@@ -51,8 +52,8 @@ if [ ! -d /usr/local/lib/owncloud/ ] \
 	# The two apps we actually want are not in ownCloud core. Clone them from
 	# their github repositories.
 	mkdir -p /usr/local/lib/owncloud/apps
-	git_clone https://github.com/owncloud/contacts v$owncloud_ver '' /usr/local/lib/owncloud/apps/contacts
+	git_clone https://github.com/owncloud/contacts 4ff855e7c2075309041bead09fbb9eb7df678244 '' /usr/local/lib/owncloud/apps/contacts
-	git_clone https://github.com/owncloud/calendar v$owncloud_ver '' /usr/local/lib/owncloud/apps/calendar
+	git_clone https://github.com/owncloud/calendar ec53139b144c0f842c33813305612e8006c42ea5 '' /usr/local/lib/owncloud/apps/calendar
 
 	# Fix weird permissions.
 	chmod 750 /usr/local/lib/owncloud/{apps,config}
@@ -66,8 +67,20 @@ if [ ! -d /usr/local/lib/owncloud/ ] \
 	# that error.
 	chown -f -R www-data.www-data $STORAGE_ROOT/owncloud /usr/local/lib/owncloud
 
-	# Run the upgrade script (if ownCloud is already up-to-date it wont matter).
+	# If this isn't a new installation, immediately run the upgrade script.
-	hide_output sudo -u www-data php /usr/local/lib/owncloud/occ upgrade
+	# Then check for success (0=ok and 3=no upgrade needed, both are success).
+	if [ -f $STORAGE_ROOT/owncloud/owncloud.db ]; then
+		# ownCloud 8.1.1 broke upgrades. It may fail on the first attempt, but
+		# that can be OK.
+		sudo -u www-data php /usr/local/lib/owncloud/occ upgrade
+		if [ \( $? -ne 0 \) -a \( $? -ne 3 \) ]; then
+			echo "Trying ownCloud upgrade again to work around ownCloud upgrade bug..."
+			sudo -u www-data php /usr/local/lib/owncloud/occ upgrade
+			if [ \( $? -ne 0 \) -a \( $? -ne 3 \) ]; then exit 1; fi
+			sudo -u www-data php /usr/local/lib/owncloud/occ maintenance:mode --off
+			echo "...which seemed to work."
+		fi
+	fi
 fi
 
 # ### Configuring ownCloud
@@ -78,7 +91,7 @@ if [ ! -f $STORAGE_ROOT/owncloud/owncloud.db ]; then
 	# Create user data directory
 	mkdir -p $STORAGE_ROOT/owncloud
 
-	# Create a configuration file.
+	# Create an initial configuration file.
 	TIMEZONE=$(cat /etc/timezone)
 	instanceid=oc$(echo $PRIMARY_HOSTNAME | sha1sum | fold -w 10 | head -n 1)
 	cat > $STORAGE_ROOT/owncloud/config.php <<EOF;
@@ -88,19 +101,17 @@ if [ ! -f $STORAGE_ROOT/owncloud/owncloud.db ]; then
 
   'instanceid' => '$instanceid',
 
-  'trusted_domains' =>
-    array (
-      0 => '$PRIMARY_HOSTNAME',
-    ),
   'forcessl' => true, # if unset/false, ownCloud sends a HSTS=0 header, which conflicts with nginx config
 
   'overwritewebroot' => '/cloud',
+  'overwrite.cli.url' => '/cloud',
   'user_backends' => array(
     array(
       'class'=>'OC_User_IMAP',
       'arguments'=>array('{localhost:993/imap/ssl/novalidate-cert}')
     )
   ),
+  'memcache.local' => '\\OC\\Memcache\\Memcached',
   "memcached_servers" => array (
     array('localhost', 11211),
   ),
@@ -147,6 +158,29 @@ EOF
 	(cd /usr/local/lib/owncloud; sudo -u www-data php /usr/local/lib/owncloud/index.php;)
 fi
 
+# Update config.php.
+# * trusted_domains is reset to localhost by autoconfig starting with ownCloud 8.1.1,
+#   so set it here. It also can change if the box's PRIMARY_HOSTNAME changes, so
+#   this will make sure it has the right value.
+# * Some settings weren't included in previous versions of Mail-in-a-Box.
+# Use PHP to read the settings file, modify it, and write out the new settings array.
+CONFIG_TEMP=$(/bin/mktemp)
+php <<EOF > $CONFIG_TEMP && mv $CONFIG_TEMP $STORAGE_ROOT/owncloud/config.php;
+<?php
+include("$STORAGE_ROOT/owncloud/config.php");
+
+\$CONFIG['trusted_domains'] = array('$PRIMARY_HOSTNAME');
+
+\$CONFIG['memcache.local'] = '\\OC\\Memcache\\Memcached';
+\$CONFIG['overwrite.cli.url'] = '/cloud';
+
+echo "<?php\n\\\$CONFIG = ";
+var_export(\$CONFIG);
+echo ";";
+?>
+EOF
+chown www-data.www-data $STORAGE_ROOT/owncloud/config.php
+
 # Enable/disable apps. Note that this must be done after the ownCloud setup.
 # The firstrunwizard gave Josh all sorts of problems, so disabling that.
 # user_external is what allows ownCloud to use IMAP for login. The contacts
@@ -156,6 +190,12 @@ hide_output sudo -u www-data php /usr/local/lib/owncloud/console.php app:enable
 hide_output sudo -u www-data php /usr/local/lib/owncloud/console.php app:enable contacts
 hide_output sudo -u www-data php /usr/local/lib/owncloud/console.php app:enable calendar
 
+# When upgrading, run the upgrade script again now that apps are enabled. It seems like
+# the first upgrade at the top won't work because apps may be disabled during upgrade?
+# Check for success (0=ok, 3=no upgrade needed).
+sudo -u www-data php /usr/local/lib/owncloud/occ upgrade
+if [ \( $? -ne 0 \) -a \( $? -ne 3 \) ]; then exit 1; fi
+
 # Set PHP FPM values to support large file uploads
 # (semicolon is the comment character in this file, hashes produce deprecation warnings)
 tools/editconf.py /etc/php5/fpm/php.ini -c ';' \

setup/preflight.sh

@@ -19,7 +19,7 @@ fi
 
 # Check that we have enough memory.
 #
-# /proc/meminfo reports free memory in kibibytes. Our baseline will be 768 KB,
+# /proc/meminfo reports free memory in kibibytes. Our baseline will be 768 MB,
 # which is 750000 kibibytes.
 #
 # Skip the check if we appear to be running inside of Vagrant, because that's really just for testing.

setup/questions.sh

@@ -13,7 +13,7 @@ if [ -z "$NONINTERACTIVE" ]; then
 	fi
 
 	# email_validator is repeated in setup/management.sh
-	hide_output pip3 install email_validator || exit 1
+	hide_output pip3 install email_validator==1.0.0 || exit 1
 
 	message_box "Mail-in-a-Box Installation" \
 		"Hello and thanks for deploying a Mail-in-a-Box!

setup/spamassassin.sh

@@ -16,7 +16,11 @@ source setup/functions.sh # load our functions
 # ----------------------------------------
 
 # Install packages.
-apt_install spampd razor pyzor dovecot-antispam
+# libmail-dkim-perl is needed to make the spamassassin DKIM module work.
+# For more information see Debian Bug #689414:
+# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=689414
+echo "Installing SpamAssassin..."
+apt_install spampd razor pyzor dovecot-antispam libmail-dkim-perl
 
 # Allow spamassassin to download new rules.
 tools/editconf.py /etc/default/spamassassin \
@@ -41,9 +45,11 @@ echo "public.pyzor.org:24441" > /etc/spamassassin/pyzor/servers
 #   want to lose track of it. (We've configured Dovecot to listen on this port elsewhere.)
 # * Increase the maximum message size of scanned messages from the default of 64KB to 500KB, which
 #   is Spamassassin (spamc)'s own default. Specified in KBytes.
+# * Disable localmode so Pyzor, DKIM and DNS checks can be used.
 tools/editconf.py /etc/default/spampd \
 	DESTPORT=10026 \
-	ADDOPTS="\"--maxsize=500\""
+	ADDOPTS="\"--maxsize=500\"" \
+	LOCALONLY=0
 
 # Spamassassin normally wraps spam as an attachment inside a fresh
 # email with a report about the message. This also protects the user
@@ -93,6 +99,7 @@ cat > /etc/dovecot/conf.d/99-local-spampd.conf << EOF;
 plugin {
     antispam_backend = pipe
     antispam_spam_pattern_ignorecase = SPAM
+    antispam_trash_pattern_ignorecase = trash;Deleted *
     antispam_allow_append_to_spam = yes
     antispam_pipe_program_spam_args = /usr/local/bin/sa-learn-pipe.sh;--spam
     antispam_pipe_program_notspam_args = /usr/local/bin/sa-learn-pipe.sh;--ham

setup/ssl.sh

@@ -19,6 +19,7 @@
 source setup/functions.sh # load our functions
 source /etc/mailinabox.conf # load global vars
 
+echo "Creating initial SSL certificate and perfect forward secrecy Diffie-Hellman parameters..."
 apt_install openssl
 
 mkdir -p $STORAGE_ROOT/ssl

setup/start.sh

@@ -52,9 +52,13 @@ chmod +x /usr/local/bin/mailinabox
 source setup/questions.sh
 
 # Run some network checks to make sure setup on this machine makes sense.
+# Skip on existing installs since we don't want this to block the ability to
+# upgrade, and these checks are also in the control panel status checks.
+if [ -z "$DEFAULT_PRIMARY_HOSTNAME" ]; then
 if [ -z "$SKIP_NETWORK_CHECKS" ]; then
 	source setup/network-checks.sh
 fi
+fi
 
 # Create the STORAGE_USER and STORAGE_ROOT directory if they don't already exist.
 # If the STORAGE_ROOT is missing the mailinabox.version file that lists a
@@ -126,17 +130,19 @@ if management/status_checks.py --check-primary-hostname; then
 	# Show the nice URL if it appears to be resolving and has a valid certificate.
 	echo https://$PRIMARY_HOSTNAME/admin
 	echo
-	echo If you have a DNS problem use the box\'s IP address and check the SSL fingerprint:
+	echo "If you have a DNS problem put the box's IP address in the URL"
-	echo https://$PUBLIC_IP/admin
+	echo "(https://$PUBLIC_IP/admin) but then check the SSL fingerprint:"
+	openssl x509 -in $STORAGE_ROOT/ssl/ssl_certificate.pem -noout -fingerprint \
+        	| sed "s/SHA1 Fingerprint=//"
 else
 	echo https://$PUBLIC_IP/admin
 	echo
 	echo You will be alerted that the website has an invalid certificate. Check that
 	echo the certificate fingerprint matches:
 	echo
+	openssl x509 -in $STORAGE_ROOT/ssl/ssl_certificate.pem -noout -fingerprint \
+        	| sed "s/SHA1 Fingerprint=//"
+	echo
+	echo Then you can confirm the security exception and continue.
+	echo
 fi
-openssl x509 -in $STORAGE_ROOT/ssl/ssl_certificate.pem -noout -fingerprint \
-        | sed "s/SHA1 Fingerprint=//"
-echo
-echo Then you can confirm the security exception and continue.
-echo

setup/system.sh

@@ -48,9 +48,10 @@ apt_get_quiet upgrade
 # * netcat-openbsd: `nc` command line networking tool
 # * git: we install some things directly from github
 # * sudo: allows privileged users to execute commands as root without being root
-# * coreutils: includes `nproc` tool to report number of processors
+# * coreutils: includes `nproc` tool to report number of processors, mktemp
 # * bc: allows us to do math to compute sane defaults
 
+echo Installing system packages...
 apt_install python3 python3-dev python3-pip \
 	netcat-openbsd wget curl git sudo coreutils bc \
 	haveged unattended-upgrades cron ntp fail2ban

setup/web.sh

@@ -17,6 +17,7 @@ fi
 #
 # Turn off nginx's default website.
 
+echo "Installing Nginx (web server)..."
 apt_install nginx php5-fpm
 
 rm -f /etc/nginx/sites-enabled/default
@@ -24,13 +25,19 @@ rm -f /etc/nginx/sites-enabled/default
 # Copy in a nginx configuration file for common and best-practices
 # SSL settings from @konklone. Replace STORAGE_ROOT so it can find
 # the DH params.
+rm -f /etc/nginx/nginx-ssl.conf # we used to put it here
 sed "s#STORAGE_ROOT#$STORAGE_ROOT#" \
-	conf/nginx-ssl.conf > /etc/nginx/nginx-ssl.conf
+	conf/nginx-ssl.conf > /etc/nginx/conf.d/ssl.conf
 
 # Fix some nginx defaults.
-# The server_names_hash_bucket_size seems to prevent long domain names?
+# The server_names_hash_bucket_size seems to prevent long domain names!
+# The default, according to nginx's docs, depends on "the size of the
+# processor’s cache line." It could be as low as 32. We fixed it at
+# 64 in 2014 to accommodate a long domain name (20 characters?). But
+# even at 64, a 58-character domain name won't work (#93), so now
+# we're going up to 128.
 tools/editconf.py /etc/nginx/nginx.conf -s \
-	server_names_hash_bucket_size="64;"
+	server_names_hash_bucket_size="128;"
 
 # Tell PHP not to expose its version number in the X-Powered-By header.
 tools/editconf.py /etc/php5/fpm/php.ini -c ';' \

setup/webmail.sh

@@ -19,9 +19,10 @@ source /etc/mailinabox.conf # load global vars
 # and then we'll manually install roundcube from source.
 
 # These dependencies are from `apt-cache showpkg roundcube-core`.
+echo "Installing Roundcube (webmail)..."
 apt_install \
 	dbconfig-common \
-	php5 php5-sqlite php5-mcrypt php5-intl php5-json php5-common php-auth php-net-smtp php-net-socket php-net-sieve php-mail-mime php-crypt-gpg php5-gd php5-pspell \
+	php5 php5-sqlite php5-mcrypt php5-intl php5-json php5-common php-auth php-net-smtp php-net-socket php-net-sieve php-mail-mime php-mail-mimedecode php-crypt-gpg php5-gd php5-pspell \
 	tinymce libjs-jquery libjs-jquery-mousewheel libmagic1
 
 # We used to install Roundcube from Ubuntu, without triggering the dependencies #NODOC
@@ -36,7 +37,8 @@ VERSION=1.1.2
 HASH=df88deae691da3ecf3e9f0aee674c1f3042ea1eb
 VACATION_SIEVE_VERSION=91ea6f52216390073d1f5b70b5f6bea0bfaee7e5
 PERSISTENT_LOGIN_VERSION=117fbd8f93b56b2bf72ad055193464803ef3bc36
-UPDATE_KEY=$VERSION:$VACATION_SIEVE_VERSION:$PERSISTENT_LOGIN_VERSION
+HTML5_NOTIFIER_VERSION=046eb388dd63b1ec77a3ee485757fc25ae9e684d
+UPDATE_KEY=$VERSION:$VACATION_SIEVE_VERSION:$PERSISTENT_LOGIN_VERSION:$HTML5_NOTIFIER_VERSION
 needs_update=0 #NODOC
 if [ ! -f /usr/local/lib/roundcubemail/version ]; then
 	# not installed yet #NODOC
@@ -47,7 +49,6 @@ elif [[ "$UPDATE_KEY" != `cat /usr/local/lib/roundcubemail/version` ]]; then
 fi
 if [ $needs_update == 1 ]; then
 	# install roundcube
-	echo installing Roundcube webmail $VERSION...
 	wget_verify \
 		https://mailinabox.email/mirror/roundcubemail-$VERSION.tar.gz \
 		$HASH \
@@ -63,6 +64,9 @@ if [ $needs_update == 1 ]; then
 	# install roundcube persistent_login plugin
 	git_clone https://github.com/mfreiholz/Roundcube-Persistent-Login-Plugin.git $PERSISTENT_LOGIN_VERSION '' /usr/local/lib/roundcubemail/plugins/persistent_login
 
+	# install roundcube html5_notifier plugin
+	git_clone https://github.com/kitist/html5_notifier.git $HTML5_NOTIFIER_VERSION '' /usr/local/lib/roundcubemail/plugins/html5_notifier
+
 	# record the version we've installed
 	echo $UPDATE_KEY > /usr/local/lib/roundcubemail/version
 fi
@@ -96,7 +100,7 @@ cat > /usr/local/lib/roundcubemail/config/config.inc.php <<EOF;
 \$config['support_url'] = 'https://mailinabox.email/';
 \$config['product_name'] = 'Mail-in-a-Box/Roundcube Webmail';
 \$config['des_key'] = '$SECRET_KEY';
-\$config['plugins'] = array('archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'vacation_sieve', 'persistent_login');
+\$config['plugins'] = array('html5_notifier', 'archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'vacation_sieve', 'persistent_login');
 \$config['skin'] = 'classic';
 \$config['login_autocomplete'] = 2;
 \$config['password_charset'] = 'UTF-8';

setup/zpush.sh

@@ -15,13 +15,14 @@ source /etc/mailinabox.conf # load global vars
 
 # Prereqs.
 
+echo "Installing Z-Push (Exchange/ActiveSync server)..."
 apt_install \
 	php-soap php5-imap libawl-php php5-xsl
 
 php5enmod imap
 
 # Copy Z-Push into place.
-TARGETHASH=d0cd5a47c53afac5c3b287006dc8a48a1c4ffcd5
+TARGETHASH=80cbe53de4ab8dd598d1f2af6f0a23fa396c529a
 needs_update=0 #NODOC
 if [ ! -f /usr/local/lib/z-push/version ]; then
 	needs_update=1 #NODOC
@@ -30,7 +31,6 @@ elif [[ $TARGETHASH != `cat /usr/local/lib/z-push/version` ]]; then
 	needs_update=1 #NODOC
 fi
 if [ $needs_update == 1 ]; then
-	echo installing z-push \(fmbiete fork\)...
 	git_clone https://github.com/fmbiete/Z-Push-contrib $TARGETHASH '' /usr/local/lib/z-push
 	rm -f /usr/sbin/z-push-{admin,top}
 	ln -s /usr/local/lib/z-push/z-push-admin.php /usr/sbin/z-push-admin
@@ -42,6 +42,8 @@ fi
 sed -i "s^define('TIMEZONE', .*^define('TIMEZONE', '$(cat /etc/timezone)');^" /usr/local/lib/z-push/config.php
 sed -i "s/define('BACKEND_PROVIDER', .*/define('BACKEND_PROVIDER', 'BackendCombined');/" /usr/local/lib/z-push/config.php
 sed -i "s/define('USE_FULLEMAIL_FOR_LOGIN', .*/define('USE_FULLEMAIL_FOR_LOGIN', true);/" /usr/local/lib/z-push/config.php
+sed -i "s/define('LOG_MEMORY_PROFILER', .*/define('LOG_MEMORY_PROFILER', false);/" /usr/local/lib/z-push/config.php
+sed -i "s/define('BUG68532FIXED', .*/define('BUG68532FIXED', false);/" /usr/local/lib/z-push/config.php
 
 # Configure BACKEND
 rm -f /usr/local/lib/z-push/backend/combined/config.php

tools/mail.py

@@ -120,10 +120,10 @@ elif sys.argv[1] == "alias" and len(sys.argv) == 2:
 	print(mgmt("/mail/aliases"))
 
 elif sys.argv[1] == "alias" and sys.argv[2] == "add" and len(sys.argv) == 5:
-	print(mgmt("/mail/aliases/add", { "source": sys.argv[3], "destination": sys.argv[4] }))
+	print(mgmt("/mail/aliases/add", { "address": sys.argv[3], "forwards_to": sys.argv[4] }))
 
 elif sys.argv[1] == "alias" and sys.argv[2] == "remove" and len(sys.argv) == 4:
-	print(mgmt("/mail/aliases/remove", { "source": sys.argv[3] }))
+	print(mgmt("/mail/aliases/remove", { "address": sys.argv[3] }))
 
 else:
 	print("Invalid command-line arguments.")

tools/update-subresource-integrity.py

@@ -0,0 +1,24 @@
+#!/usr/bin/python3
+# Updates subresource integrity attributes in management/templates/index.html
+# to prevent CDN-hosted resources from being used as an attack vector. Run this
+# after updating the Bootstrap and jQuery <link> and <script> to compute the
+# appropriate hash and insert it into the template.
+
+import re, urllib.request, hashlib, base64
+
+fn = "management/templates/index.html"
+
+with open(fn, 'r') as f:
+	content = f.read()
+
+def make_integrity(url):
+	resource = urllib.request.urlopen(url).read()
+	return "sha256-" + base64.b64encode(hashlib.sha256(resource).digest()).decode('ascii')
+
+content = re.sub(
+	r'<(link rel="stylesheet" href|script src)="(.*?)" integrity="(.*?)"',
+	lambda m : '<' + m.group(1) + '="' + m.group(2) + '" integrity="' + make_integrity(m.group(2)) + '"',
+	content)
+
+with open(fn, 'w') as f:
+	f.write(content)