add Mail-in-a-Box version check to status checks

closes #502

management/daemon.py

@@ -426,6 +426,20 @@ def backup_set_custom():
 		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/')

management/status_checks.py

@@ -16,7 +16,7 @@ from dns_update import get_dns_zones, build_tlsa_record, get_custom_dns_config,
 from web_update import get_web_domains, get_default_www_redirects, get_domain_ssl_files
 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
@@ -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)
 
@@ -808,11 +809,11 @@ 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 +822,20 @@ 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

management/templates/index.html

@@ -114,7 +114,6 @@
             </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 +167,6 @@
       {% include "ssl.html" %}
       </div>
 
-      <div id="panel_version" class="admin_panel">
-      {% include "version.html" %}
-      </div>
-
       <hr>
 
       <footer>

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/version.html

-<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

 import os.path
+import rtyaml
 
-CONF_DIR = os.path.join(os.path.dirname(__file__), "../conf")
+# THE ENVIRONMENT FILE AT /etc/mailinabox.conf
 
 def load_environment():
     # Load settings from /etc/mailinabox.conf.
@@ -18,6 +19,24 @@ 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):
+    fn = os.path.join(env['STORAGE_ROOT'], 'settings.yaml')
+    with open(fn, "w") as f:
+        f.write(rtyaml.dump(config))
+
+def load_settings(env):
+    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