Merge remote-tracking branch 'upstream/master'

CHANGELOG.md

@@ -1,6 +1,17 @@
 CHANGELOG
 =========
 
+In Development
+--------------
+
+* Incoming emails with SPF/DKIM/DMARC failures now have a higher spam score, and these messages are more likely to appear in the junk folder, since they are often spam/phishing.
+* A new Download button in the control panel's External DNS page can be used to download the required DNS records in zonefile format.
+* Backblaze B2 is now a supported backup protocol.
+* Fixed the problem when the control panel would report DNS entries as Not Set by increasing a bind query limit.
+* Fixed a control panel startup bug on some systems.
+* Fixed the MTA-STS policy file's line endings.
+* Nextcloud's photos, dashboard, and activity apps are disabled since we only support contacts and calendar.
+
 v0.51 (November 14, 2020)
 -------------------------
 

api/mailinabox.yml

@@ -15,7 +15,7 @@ info:
   license:
     name: CC0 1.0 Universal
     url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
-  version: 0.47.0
+  version: 0.51.0
   x-logo:
     url: https://mailinabox.email/static/logo.png
     altText: Mail-in-a-Box logo
@@ -743,6 +743,38 @@ paths:
             text/html:
               schema:
                 type: string
+  /dns/zonefile/{zone}:
+    parameters:
+      - in: path
+        name: zone
+        schema:
+          $ref: '#/components/schemas/Hostname'
+        required: true
+        description: Hostname
+    get:
+      tags:
+        - DNS
+      summary: Get DNS zonefile
+      description: Returns a DNS zone file for a hostname.
+      operationId: getDnsZonefile
+      x-codeSamples:
+        - lang: curl
+          source: |
+            curl -X GET "https://{host}/admin/dns/zonefile/<zone>" \
+              -u "<email>:<password>"
+      responses:
+        200:
+          description: Successful operation
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/DNSZonefileResponse'
+        403:
+          description: Forbidden
+          content:
+            text/html:
+              schema:
+                type: string
   /dns/update:
     post:
       tags:
@@ -1781,7 +1813,7 @@ components:
         text/plain:
           schema:
             type: string
-            example: 1.2.3.4
+            example: '1.2.3.4'
             description: The value of the DNS record.
           example: '1.2.3.4'
   schemas:
@@ -2050,6 +2082,8 @@ components:
       items:
         $ref: '#/components/schemas/Hostname'
       description: DNS zones response.
+    DNSZonefileResponse:
+      type: string
     DNSSecondaryNameserverResponse:
       type: object
       required:
@@ -2663,13 +2697,6 @@ components:
           type: string
     MfaEnableSuccessResponse:
       type: string
-    MfaEnableBadRequestResponse:
-      type: object
-      required:
-        - error
-      properties:
-        error:
-          type: string
     MfaDisableRequest:
       type: object
       properties:

management/backup.py

@@ -456,6 +456,23 @@ def list_target_files(config):
 			raise ValueError(e.reason)
 
 		return [(key.name[len(path):], key.size) for key in bucket.list(prefix=path)]
+	elif target.scheme == 'b2':
+		from b2sdk.v1 import InMemoryAccountInfo, B2Api
+		from b2sdk.v1.exception import NonExistentBucket
+		info = InMemoryAccountInfo()
+		b2_api = B2Api(info)
+		
+		# Extract information from target
+		b2_application_keyid = target.netloc[:target.netloc.index(':')]
+		b2_application_key = target.netloc[target.netloc.index(':')+1:target.netloc.index('@')]
+		b2_bucket = target.netloc[target.netloc.index('@')+1:]
+
+		try:
+			b2_api.authorize_account("production", b2_application_keyid, b2_application_key)
+			bucket = b2_api.get_bucket_by_name(b2_bucket)
+		except NonExistentBucket as e:
+			raise ValueError("B2 Bucket does not exist. Please double check your information!")
+		return [(key.file_name, key.size) for key, _ in bucket.ls()]
 
 	else:
 		raise ValueError(config["target"])

management/daemon.py

@@ -1,3 +1,12 @@
+#!/usr/local/lib/mailinabox/env/bin/python3
+#
+# During development, you can start the Mail-in-a-Box control panel
+# by running this script, e.g.:
+#
+# service mailinabox stop # stop the system process
+# DEBUG=1 management/daemon.py
+# service mailinabox start # when done debugging, start it up again
+
 import os, os.path, re, json, time
 import multiprocessing.pool, subprocess
 
@@ -338,6 +347,12 @@ def dns_get_dump():
 	from dns_update import build_recommended_dns
 	return json_response(build_recommended_dns(env))
 
+@app.route('/dns/zonefile/<zone>')
+@authorized_personnel_only
+def dns_get_zonefile(zone):
+	from dns_update import get_dns_zonefile
+	return Response(get_dns_zonefile(zone, env), status=200, mimetype='text/plain')
+
 # SSL
 
 @app.route('/ssl/status')
@@ -672,7 +687,22 @@ def log_failed_login(request):
 # APP
 
 if __name__ == '__main__':
-	if "DEBUG" in os.environ: app.debug = True
+	if "DEBUG" in os.environ:
+		# Turn on Flask debugging.
+		app.debug = True
+
+		# Use a stable-ish master API key so that login sessions don't restart on each run.
+		# Use /etc/machine-id to seed the key with a stable secret, but add something
+		# and hash it to prevent possibly exposing the machine id, using the time so that
+		# the key is not valid indefinitely.
+		import hashlib
+		with open("/etc/machine-id") as f:
+			api_key = f.read()
+		api_key += "|" + str(int(time.time() / (60*60*2)))
+		hasher = hashlib.sha1()
+		hasher.update(api_key.encode("ascii"))
+		auth_service.key = hasher.hexdigest()
+
 	if "APIKEY" in os.environ: auth_service.key = os.environ["APIKEY"]
 
 	if not app.debug:

management/dns_update.py

@@ -470,14 +470,14 @@ def write_nsd_zone(domain, zonefile, records, env, force):
 
 	zone = """
 $ORIGIN {domain}.
-$TTL 1800           ; default time to live
+$TTL 86400          ; default time to live
 
 @ IN SOA ns1.{primary_domain}. hostmaster.{primary_domain}. (
            __SERIAL__     ; serial number
            7200     ; Refresh (secondary nameserver update interval)
-           1800     ; Retry (when refresh fails, how often to try again)
+           86400    ; Retry (when refresh fails, how often to try again)
            1209600  ; Expire (when refresh fails, how long secondary nameserver will keep records around anyway)
-           1800     ; Negative TTL (how long negative responses are cached)
+           86400    ; Negative TTL (how long negative responses are cached)
            )
 """
 
@@ -564,6 +564,17 @@ $TTL 1800           ; default time to live
 
 	return True # file is updated
 
+def get_dns_zonefile(zone, env):
+	for domain, fn in get_dns_zones(env):
+		if zone == domain:
+			break
+	else:
+		raise ValueError("%s is not a domain name that corresponds to a zone." % zone)
+
+	nsd_zonefile = "/etc/nsd/zones/" + fn
+	with open(nsd_zonefile, "r") as f:
+		return f.read()
+
 ########################################################################
 
 def write_nsd_conf(zonefiles, additional_records, env):

management/templates/custom-dns.html

@@ -89,7 +89,7 @@
   <div class="form-group">
     <div class="col-sm-offset-1 col-sm-11">
       <p class="small">
-        Multiple secondary servers can be separated with commas or spaces (i.e., <code>ns2.hostingcompany.com ns3.hostingcompany.com</code>). 
+        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 an IP address or subnet using <code>xfr:10.20.30.40</code> or <code>xfr:10.0.0.0/8</code>.
       </p>
       <p id="secondarydns-clear-instructions" style="display: none" class="small">

management/templates/external-dns.html

@@ -42,6 +42,19 @@
 	You may need to adopt this technique when adding DomainKeys. Use a tool like <code>named-checkzone</code> to validate your zone file.
 </p>
 
+<h3>Download zonefile</h3>
+<p>You can download your zonefiles here or use the table of records below.</p>
+<form class="form-inline" role="form" onsubmit="do_download_zonefile(); return false;">
+    <div class="form-group">
+        <div class="form-group">
+            <label for="downloadZonefile" class="control-label sr-only">Zone</label>
+            <select id="downloadZonefile" class="form-control" style="width: auto"> </select>
+        </div>
+        <button type="submit" class="btn btn-primary">Download</button>
+    </div>
+</form>
+
+<h3>Records</h3>
 
 <table id="external_dns_settings" class="table">
 	<thead>
@@ -57,6 +70,18 @@
 
 <script>
 function show_external_dns() {
+  api(
+    "/dns/zones",
+    "GET",
+    { },
+    function(data) {
+        var zones = $('#downloadZonefile');
+        zones.text('');
+        for (var j = 0; j < data.length; j++) {
+            zones.append($('<option/>').text(data[j]));
+        }
+    });
+
   $('#external_dns_settings tbody').html("<tr><td colspan='2' class='text-muted'>Loading...</td></tr>")
   api(
     "/dns/dump",
@@ -84,4 +109,19 @@ function show_external_dns() {
       }
     })
 }
+
+function do_download_zonefile() {
+    var zone = $('#downloadZonefile').val();
+
+    api(
+        "/dns/zonefile/"+ zone,
+        "GET",
+        {},
+        function(data) {
+            show_modal_error("Download Zonefile", $("<pre/>").text(data));
+        },
+        function(err) {
+            show_modal_error("Download Zonefile (Error)", $("<pre/>").text(err));
+        });
+}
 </script>

management/templates/system-backup.html

@@ -18,6 +18,7 @@
         <option value="local">{{hostname}}</option>
         <option value="rsync">rsync</option>
         <option value="s3">Amazon S3</option>
+        <option value="b2">Backblaze B2</option>
       </select>
     </div>
   </div>
@@ -111,6 +112,31 @@
       <input type="text" class="form-control" rows="1" id="backup-target-pass">
     </div>
   </div>
+  <!-- Backblaze -->
+  <div class="form-group backup-target-b2">
+      <div class="col-sm-10 col-sm-offset-2">
+        <p>Backups are stored in a <a href="https://www.backblaze.com/" target="_blank" rel="noreferrer">Backblaze</a> B2 bucket. You must have a Backblaze 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 Backblaze B2 bucket.</p>
+      </div>
+  </div>
+  <div class="form-group backup-target-b2">
+      <label for="backup-target-b2-user" class="col-sm-2 control-label">B2 Application KeyID</label>
+      <div class="col-sm-8">
+        <input type="text" class="form-control" rows="1" id="backup-target-b2-user">
+      </div>
+  </div>
+  <div class="form-group backup-target-b2">
+      <label for="backup-target-b2-pass" class="col-sm-2 control-label">B2 Application Key</label>
+      <div class="col-sm-8">
+        <input type="text" class="form-control" rows="1" id="backup-target-b2-pass">
+      </div>
+  </div>
+  <div class="form-group backup-target-b2">
+      <label for="backup-target-b2-bucket" class="col-sm-2 control-label">B2 Bucket</label>
+      <div class="col-sm-8">
+        <input type="text" class="form-control" rows="1" id="backup-target-b2-bucket">
+      </div>
+  </div>
   <!-- Common -->
   <div class="form-group backup-target-local backup-target-rsync backup-target-s3">
     <label for="min-age" class="col-sm-2 control-label">Retention Days:</label>
@@ -144,7 +170,7 @@
 
 function toggle_form() {
   var target_type = $("#backup-target-type").val();
-  $(".backup-target-local, .backup-target-rsync, .backup-target-s3").hide();
+  $(".backup-target-local, .backup-target-rsync, .backup-target-s3, .backup-target-b2").hide();
   $(".backup-target-" + target_type).show();
 
   init_inputs(target_type);
@@ -215,7 +241,7 @@ function show_system_backup() {
 }
 
 function show_custom_backup() {
-    $(".backup-target-local, .backup-target-rsync, .backup-target-s3").hide();
+    $(".backup-target-local, .backup-target-rsync, .backup-target-s3, .backup-target-b2").hide();
     api(
       "/system/backup/config",
       "GET",
@@ -245,6 +271,15 @@ function show_custom_backup() {
           var host = hostpath.shift();
           $("#backup-target-s3-host").val(host);
           $("#backup-target-s3-path").val(hostpath.join('/'));
+        } else if (r.target.substring(0, 5) == "b2://") {
+          $("#backup-target-type").val("b2");
+          var targetPath = r.target.substring(5);
+          var b2_application_keyid = targetPath.split(':')[0];
+          var b2_applicationkey = targetPath.split(':')[1].split('@')[0];
+          var b2_bucket = targetPath.split('@')[1];
+          $("#backup-target-b2-user").val(b2_application_keyid);
+          $("#backup-target-b2-pass").val(b2_applicationkey);
+          $("#backup-target-b2-bucket").val(b2_bucket);
         }
         toggle_form()
       })
@@ -264,6 +299,11 @@ function set_custom_backup() {
     target = "rsync://" + $("#backup-target-rsync-user").val() + "@" + $("#backup-target-rsync-host").val()
                                                                 + "/" + $("#backup-target-rsync-path").val();
     target_user = '';
+  } else if (target_type == "b2") {
+    target = 'b2://' + $('#backup-target-b2-user').val() + ':' + $('#backup-target-b2-pass').val()
+        + '@' + $('#backup-target-b2-bucket').val()
+    target_user = '';
+    target_pass = '';
   }
 
 
@@ -303,4 +343,4 @@ function init_inputs(target_type) {
     set_host($('#backup-target-s3-host-select').val());
   }
 }
-</script>
+</script>

management/templates/users.html

@@ -31,7 +31,7 @@
   <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 eight characters consisting of English lettters and numbers only. For best results, <a href="#" onclick="return generate_random_password()">generate a random password</a>.</li>
+  <li>Passwords must be at least eight characters consisting of English letters and numbers only. For best results, <a href="#" onclick="return generate_random_password()">generate a random password</a>.</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="#" onclick="return show_panel('aliases');">aliases</a> can.</li>

setup/management.sh

@@ -18,11 +18,7 @@ while [ -d /usr/local/lib/python3.4/dist-packages/acme ]; do
 	pip3 uninstall -y acme;
 done
 
-# duplicity is used to make backups of user data. It uses boto
+# duplicity is used to make backups of user data.
-# (via Python 2) to do backups to AWS S3. boto from the Ubuntu
-# package manager is too out-of-date -- it doesn't support the newer
-# S3 api used in some regions, which breaks backups to those regions.
-# See #627, #653.
 #
 # virtualenv is used to isolate the Python 3 packages we
 # install via pip from the system-installed packages.
@@ -30,7 +26,11 @@ done
 # certbot installs EFF's certbot which we use to
 # provision free TLS certificates.
 apt_install duplicity python-pip virtualenv certbot
-hide_output pip2 install --upgrade boto
+
+# b2sdk is used for backblaze backups.
+# boto is used for amazon aws backups.
+# Both are installed outside the pipenv, so they can be used by duplicity
+hide_output pip3 install --upgrade b2sdk boto
 
 # Create a virtualenv for the installation of Python 3 packages
 # used by the management daemon.
@@ -50,8 +50,8 @@ hide_output $venv/bin/pip install --upgrade pip
 hide_output $venv/bin/pip install --upgrade \
 	rtyaml "email_validator>=1.0.0" "exclusiveprocess" \
 	flask dnspython python-dateutil \
-    qrcode[pil] pyotp \
+  qrcode[pil] pyotp \
-	"idna>=2.0.0" "cryptography==2.2.2" boto psutil postfix-mta-sts-resolver
+	"idna>=2.0.0" "cryptography==2.2.2" boto psutil postfix-mta-sts-resolver b2sdk
 
 # CONFIGURATION
 
@@ -90,6 +90,12 @@ rm -f /tmp/bootstrap.zip
 # running after a reboot.
 cat > $inst_dir/start <<EOF;
 #!/bin/bash
+# Set character encoding flags to ensure that any non-ASCII don't cause problems.
+export LANGUAGE=en_US.UTF-8
+export LC_ALL=en_US.UTF-8
+export LANG=en_US.UTF-8
+export LC_TYPE=en_US.UTF-8
+
 source $venv/bin/activate
 exec python `pwd`/management/daemon.py
 EOF

setup/system.sh

@@ -93,6 +93,9 @@ hide_output add-apt-repository -y universe
 # Install the certbot PPA.
 hide_output add-apt-repository -y ppa:certbot/certbot
 
+# Install the duplicity PPA.
+hide_output add-apt-repository -y ppa:duplicity-team/duplicity-release-git
+
 # ### Update Packages
 
 # Update system packages to make sure we have the latest upstream versions
@@ -317,6 +320,9 @@ fi #NODOC
 #   name server, on IPV6.
 # * The listen-on directive in named.conf.options restricts `bind9` to
 #   binding to the loopback interface instead of all interfaces.
+# * The max-recursion-queries directive increases the maximum number of iterative queries.
+#  	If more queries than specified are sent, bind9 returns SERVFAIL. After flushing the cache during system checks,
+#	we ran into the limit thus we are increasing it from 75 (default value) to 100.
 apt_install bind9
 tools/editconf.py /etc/default/bind9 \
 	"OPTIONS=\"-u bind -4\""
@@ -324,6 +330,10 @@ if ! grep -q "listen-on " /etc/bind/named.conf.options; then
 	# Add a listen-on directive if it doesn't exist inside the options block.
 	sed -i "s/^}/\n\tlisten-on { 127.0.0.1; };\n}/" /etc/bind/named.conf.options
 fi
+if ! grep -q "max-recursion-queries " /etc/bind/named.conf.options; then
+	# Add a max-recursion-queries directive if it doesn't exist inside the options block.
+	sed -i "s/^}/\n\tmax-recursion-queries 100;\n}/" /etc/bind/named.conf.options
+fi
 
 # First we'll disable systemd-resolved's management of resolv.conf and its stub server.
 # Breaking the symlink to /run/systemd/resolve/stub-resolv.conf means

setup/webmail.sh

@@ -28,8 +28,8 @@ apt_install \
 # Install Roundcube from source if it is not already present or if it is out of date.
 # Combine the Roundcube version number with the commit hash of plugins to track
 # whether we have the latest version of everything.
-VERSION=1.4.9
+VERSION=1.4.10
-HASH=df650f4d3eae9eaae2d5a5f06d68665691daf57d
+HASH=36b2351030e1ebddb8e39190d7b0ba82b1bbec1b
 PERSISTENT_LOGIN_VERSION=6b3fc450cae23ccb2f393d0ef67aa319e877e435
 HTML5_NOTIFIER_VERSION=4b370e3cd60dabd2f428a26f45b677ad1b7118d5
 CARDDAV_VERSION=3.0.3