admin: allow disabling display of metrics

This is useful in situations where the admins of the Snikket
server (i.e. those who care for the docker containers) are not the
same people as the people who are admins of the Snikket service
(i.e. those who care for the users).

snikket_web/__init__.py

@@ -160,6 +160,7 @@ class AppConfig:
     # Future versions may change this default, and the standard deployment
     # tools may also very well override it.
     max_avatar_size = environ.var(1024*1024, converter=int)
+    show_metrics = environ.bool_var(True)
 
 
 _UPPER_CASE = "".join(map(chr, range(ord("A"), ord("Z")+1)))
@@ -191,6 +192,7 @@ def create_app() -> quart.Quart:
     app.config["AVATAR_CACHE_TTL"] = config.avatar_cache_ttl
     app.config["APPLE_STORE_URL"] = config.apple_store_url
     app.config["MAX_AVATAR_SIZE"] = config.max_avatar_size
+    app.config["SHOW_METRICS"] = config.show_metrics
 
     app.context_processor(proc)
     app.register_error_handler(

snikket_web/admin.py

@@ -1,4 +1,6 @@
 import json
+import resource
+import time
 import typing
 
 from datetime import datetime
@@ -18,11 +20,12 @@ from quart import (
     request,
     abort,
     flash,
+    current_app,
 )
 
 from flask_babel import lazy_gettext as _l, _
 
-from . import prosodyclient
+from . import prosodyclient, _version
 from .infra import client, circle_name, BaseForm
 
 bp = Blueprint("admin", __name__, url_prefix="/admin")
@@ -31,7 +34,11 @@ bp = Blueprint("admin", __name__, url_prefix="/admin")
 @bp.route("/")
 @client.require_admin_session()
 async def index() -> str:
-    return await render_template("admin_home.html")
+    show_metrics = current_app.config["SHOW_METRICS"]
+    return await render_template(
+        "admin_home.html",
+        show_metrics=show_metrics,
+    )
 
 
 class PasswordResetLinkPost(BaseForm):
@@ -550,3 +557,148 @@ async def edit_circle(id_: str) -> typing.Union[str, quart.Response]:
         circle_members=circle_members,
         invite_form=invite_form,
     )
+
+
+_CPU_EPOCH = time.process_time()
+_MONOTONIC_EPOCH = time.monotonic()
+
+
+def get_system_stats() -> typing.MutableMapping[
+        str,
+        typing.Optional[typing.Union[int, float]]]:
+    pagesize = resource.getpagesize()
+    my_rss: typing.Optional[int] = None
+    try:
+        with open("/proc/self/statm") as f:
+            stats = f.read().split()
+        my_rss = int(stats[1]) * pagesize
+    except (ValueError, IndexError, TypeError, OSError):
+        pass
+
+    my_cpu = (
+        (time.process_time() - _CPU_EPOCH) /
+        (time.monotonic() - _MONOTONIC_EPOCH)
+    )
+
+    mem_total, mem_available = None, None
+    load5: typing.Optional[float] = None
+
+    try:
+        with open("/proc/loadavg") as f:
+            stats = f.read().split()
+        load5 = float(stats[1])
+    except (ValueError, IndexError, TypeError, OSError):
+        pass
+
+    try:
+        with open("/proc/meminfo") as f:
+            for line in f:
+                if line.startswith("MemTotal"):
+                    mem_total = int(line.split()[1]) * 1024
+                elif line.startswith("MemAvailable"):
+                    mem_available = int(line.split()[1]) * 1024
+                if mem_total is not None and mem_available is not None:
+                    break
+    except (ValueError, TypeError, IndexError, OSError):
+        pass
+
+    return {
+        "portal_rss": my_rss,
+        "portal_cpu": my_cpu,
+        "load5": load5,
+        "mem_total": mem_total,
+        "mem_available": mem_available,
+    }
+
+
+class AnnouncementForm(BaseForm):
+    text = wtforms.StringField(
+        _("Message contents"),
+        widget=wtforms.widgets.TextArea(),
+        validators=[wtforms.validators.DataRequired()],
+    )
+
+    online_only = wtforms.BooleanField(
+        _("Only send to online users"),
+    )
+
+    action_post_all = wtforms.SubmitField(
+        _("Post to all users"),
+    )
+
+    action_send_preview = wtforms.SubmitField(
+        _("Send preview to yourself"),
+    )
+
+
+@bp.route("/system/", methods=["GET", "POST"])
+@client.require_admin_session()
+async def system() -> typing.Union[str, quart.Response]:
+    form = AnnouncementForm()
+
+    if form.validate_on_submit():
+        recipients = "self"
+        if form.action_post_all.data:
+            if form.online_only.data:
+                recipients = "online"
+            else:
+                recipients = "all"
+
+        await client.post_announcement(
+            form.text.data,
+            recipients=recipients,
+        )
+        await flash(
+            _("Announcement sent!"),
+            "success",
+        )
+        if recipients != "self":
+            # redirect only if not previewing
+            return redirect(url_for(".system"))
+
+    version = None
+    now = None
+    show_metrics = current_app.config["SHOW_METRICS"]
+    if show_metrics:
+        version = await client.get_server_version()
+        now = time.time()
+        try:
+            prosody_metrics = await client.get_system_metrics()
+        except quart.exceptions.NotFound:
+            # server does not offer the endpoint for whatever reason -- ignore
+            prosody_metrics = {}
+
+        metrics = get_system_stats()
+        try:
+            prosody_cpu_metrics = prosody_metrics["cpu"]
+        except KeyError:
+            pass
+        else:
+            metrics["prosody_cpu"] = (prosody_cpu_metrics["value"] /
+                                      (now - prosody_cpu_metrics["since"]))
+
+        try:
+            metrics["prosody_rss"] = prosody_metrics["memory"]
+        except KeyError:
+            pass
+
+        try:
+            metrics["prosody_devices"] = prosody_metrics["c2s"]
+        except KeyError:
+            pass
+
+        for k in list(metrics.keys()):
+            if metrics[k] is None:
+                # so that defaulting in jinja works
+                del metrics[k]
+    else:
+        metrics = {}
+
+    return await render_template(
+        "admin_system.html",
+        metrics=metrics,
+        version=_version.version,
+        prosody_version=version,
+        form=form,
+        show_metrics=show_metrics,
+    )

snikket_web/infra.py

@@ -1,5 +1,6 @@
 import base64
 import itertools
+import math
 import secrets
 import typing
 
@@ -22,6 +23,15 @@ client.default_login_redirect = "main.login"
 babel = flask_babel.Babel()
 
 
+BYTE_UNIT_SCALE_MAP = [
+    "B",
+    "kiB",
+    "MiB",
+    "GiB",
+    "TiB",
+]
+
+
 @babel.localeselector  # type:ignore
 def selected_locale() -> str:
     selected = request.accept_languages.best_match(
@@ -42,12 +52,27 @@ def circle_name(c: typing.Any) -> str:
     return c.name
 
 
+def format_bytes(n: float) -> str:
+    scale = math.floor(math.log(n, 1024))
+    try:
+        unit = BYTE_UNIT_SCALE_MAP[scale]
+        factor = 1024**scale
+    except ValueError:
+        unit = "TiB"
+        factor = 1024**4
+    if factor > 1:
+        return "{:.1f} {}".format(n / factor, unit)
+    return "{} {}".format(n, unit)
+
+
 def init_templating(app: quart.Quart) -> None:
     app.template_filter("repr")(repr)
     app.template_filter("format_datetime")(flask_babel.format_datetime)
     app.template_filter("format_date")(flask_babel.format_date)
     app.template_filter("format_time")(flask_babel.format_time)
     app.template_filter("format_timedelta")(flask_babel.format_timedelta)
+    app.template_filter("format_percent")(flask_babel.format_percent)
+    app.template_filter("format_bytes")(format_bytes)
     app.template_filter("flatten")(flatten)
     app.template_filter("circle_name")(circle_name)
 

snikket_web/prosodyclient.py

@@ -1175,3 +1175,41 @@ class ProsodyClient:
                     json=payload) as resp:
                 resp.raise_for_status()
                 return (await resp.json())["jid"]
+
+    @autosession
+    async def get_system_metrics(
+            self,
+            *,
+            session: aiohttp.ClientSession) -> typing.Mapping:
+        async with session.get(
+                self._admin_v1_endpoint("/server/metrics"),
+                ) as resp:
+            if resp.status == 404:
+                return {}
+            self._raise_error_from_response(resp)
+            resp.raise_for_status()
+            return await resp.json()
+
+    @autosession
+    async def post_announcement(
+            self,
+            body: str,
+            recipients: str,
+            *,
+            session: aiohttp.ClientSession) -> None:
+        recipients_payload: typing.Union[str, typing.Sequence[str]]
+        if recipients == "self":
+            recipients_payload = [self.session_address]
+        else:
+            recipients_payload = recipients
+
+        payload = {
+            "recipients": recipients_payload,
+            "body": body,
+        }
+
+        async with session.post(
+                self._admin_v1_endpoint("/server/announcement"),
+                json=payload) as resp:
+            self._raise_error_from_response(resp)
+            resp.raise_for_status()

snikket_web/static/img/icons.svg

@@ -52,6 +52,12 @@ licensed under the terms of the Apache 2.0 License -->
 <path d="M0 0h24v24H0V0z" fill="none" />
 <path d="M12.65 10C11.7 7.31 8.9 5.5 5.77 6.12c-2.29.46-4.15 2.29-4.63 4.58C.32 14.57 3.26 18 7 18c2.61 0 4.83-1.67 5.65-4H17v2c0 1.1.9 2 2 2s2-.9 2-2v-2c1.1 0 2-.9 2-2s-.9-2-2-2h-8.35zM7 14c-1.1 0-2-.9-2-2s.9-2 2-2 2 .9 2 2-.9 2-2 2z" />
 </symbol>
+<!-- from: communication/rss_feed/materialiconsround/24px.svg -->
+<symbol id="icon-broadcast" viewBox="0 0 24 24">
+<path d="M0 0h24v24H0V0z" fill="none" />
+<circle cx="6.18" cy="17.82" r="2.18" />
+<path d="M5.59 10.23c-.84-.14-1.59.55-1.59 1.4 0 .71.53 1.28 1.23 1.4 2.92.51 5.22 2.82 5.74 5.74.12.7.69 1.23 1.4 1.23.85 0 1.54-.75 1.41-1.59-.68-4.2-3.99-7.51-8.19-8.18zm-.03-5.71C4.73 4.43 4 5.1 4 5.93c0 .73.55 1.33 1.27 1.4 6.01.6 10.79 5.38 11.39 11.39.07.73.67 1.28 1.4 1.28.84 0 1.5-.73 1.42-1.56-.73-7.34-6.57-13.19-13.92-13.92z" />
+</symbol>
 <!-- from: content/add_circle_outline/materialiconsround/24px.svg -->
 <symbol id="icon-add" viewBox="0 0 24 24">
 <path d="M0 0h24v24H0V0z" fill="none" />
@@ -77,6 +83,11 @@ licensed under the terms of the Apache 2.0 License -->
 <path d="M0 0h24v24H0V0z" fill="none" />
 <path d="M21.94 11.23C21.57 8.76 19.32 7 16.82 7h-2.87c-.52 0-.95.43-.95.95s.43.95.95.95h2.9c1.6 0 3.04 1.14 3.22 2.73.17 1.43-.64 2.69-1.85 3.22l1.4 1.4c1.63-1.02 2.64-2.91 2.32-5.02zM4.12 3.56c-.39-.39-1.02-.39-1.41 0s-.39 1.02 0 1.41l2.4 2.4c-1.94.8-3.27 2.77-3.09 5.04C2.23 15.05 4.59 17 7.23 17h2.82c.52 0 .95-.43.95-.95s-.43-.95-.95-.95H7.16c-1.63 0-3.1-1.19-3.25-2.82-.15-1.72 1.11-3.17 2.75-3.35l2.1 2.1c-.43.09-.76.46-.76.92v.1c0 .52.43.95.95.95h1.78L13 15.27V17h1.73l3.3 3.3c.39.39 1.02.39 1.41 0 .39-.39.39-1.02 0-1.41L4.12 3.56zM16 11.95c0-.52-.43-.95-.95-.95h-.66l1.49 1.49c.07-.13.12-.28.12-.44v-.1z" />
 </symbol>
+<!-- from: content/send/materialiconsround/24px.svg -->
+<symbol id="icon-send" viewBox="0 0 24 24">
+<path d="M0 0h24v24H0V0z" fill="none" />
+<path d="M3.4 20.4l17.45-7.48c.81-.35.81-1.49 0-1.84L3.4 3.6c-.66-.29-1.39.2-1.39.91L2 9.12c0 .5.37.93.87.99L17 12 2.87 13.88c-.5.07-.87.5-.87 1l.01 4.61c0 .71.73 1.2 1.39.91z" />
+</symbol>
 <!-- from: navigation/arrow_back/materialiconsround/24px.svg -->
 <symbol id="icon-back" viewBox="0 0 24 24">
 <path d="M0 0h24v24H0V0z" fill="none" />
@@ -142,4 +153,9 @@ licensed under the terms of the Apache 2.0 License -->
 <path d="M0 0h24v24H0V0z" fill="none" />
 <path d="M17 7h-3c-.55 0-1 .45-1 1s.45 1 1 1h3c1.65 0 3 1.35 3 3s-1.35 3-3 3h-3c-.55 0-1 .45-1 1s.45 1 1 1h3c2.76 0 5-2.24 5-5s-2.24-5-5-5zm-9 5c0 .55.45 1 1 1h6c.55 0 1-.45 1-1s-.45-1-1-1H9c-.55 0-1 .45-1 1zm2 3H7c-1.65 0-3-1.35-3-3s1.35-3 3-3h3c.55 0 1-.45 1-1s-.45-1-1-1H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h3c.55 0 1-.45 1-1s-.45-1-1-1z" />
 </symbol>
+<!-- from: content/insights/materialiconsround/24px.svg -->
+<symbol id="icon-insights" viewBox="0 0 24 24">
+<g><rect fill="none" height="24" width="24" /><rect fill="none" height="24" width="24" /></g>
+<g><g><path d="M21,8c-1.45,0-2.26,1.44-1.93,2.51l-3.55,3.56c-0.3-0.09-0.74-0.09-1.04,0l-2.55-2.55C12.27,10.45,11.46,9,10,9 c-1.45,0-2.27,1.44-1.93,2.52l-4.56,4.55C2.44,15.74,1,16.55,1,18c0,1.1,0.9,2,2,2c1.45,0,2.26-1.44,1.93-2.51l4.55-4.56 c0.3,0.09,0.74,0.09,1.04,0l2.55,2.55C12.73,16.55,13.54,18,15,18c1.45,0,2.27-1.44,1.93-2.52l3.56-3.55 C21.56,12.26,23,11.45,23,10C23,8.9,22.1,8,21,8z" /><polygon points="15,9 15.94,6.93 18,6 15.94,5.07 15,3 14.08,5.07 12,6 14.08,6.93" /><polygon points="3.5,11 4,9 6,8.5 4,8 3.5,6 3,8 1,8.5 3,9" /></g></g>
+</symbol>
 </defs></svg>

snikket_web/templates/admin_home.html

@@ -31,6 +31,18 @@
 			<div>{% call standard_button("link", url_for(".invitations"), class="primary") %}{% trans %}Manage invitations{% endtrans %}{% endcall %}</div>
 			{#- -#}
 		</li>
+		<li>
+			<h2>{% trans %}System health{% endtrans %}</h2>
+			{#- -#}
+			{%- if show_metrics -%}
+			<p>{% trans %}View the server status or send a broadcast message to all users.{% endtrans %}</p>
+			{%- else -%}
+			<p>{% trans %}Send a broadcast message to all users.{% endtrans %}</p>
+			{%- endif -%}
+			{#- -#}
+			<div>{% call standard_button("insights", url_for(".system"), class="primary") %}{% trans %}Manage system{% endtrans %}{% endcall %}</div>
+			{#- -#}
+		</li>
 		<li>
 			{#- -#}
 			<p>{% trans %}Go back to your user's web portal page.{% endtrans %}</p>

snikket_web/templates/admin_system.html

@@ -0,0 +1,97 @@
+{% extends "admin_app.html" %}
+{% from "library.j2" import form_button %}
+{% block content %}
+<h1>{% trans %}Manage system{% endtrans %}</h1>
+{% if show_metrics %}
+<h2>{% trans %}Overall system status{% endtrans %}</h2>
+<div class="elevated el-2">
+	<dl>
+		<dt>{% trans %}System load (5 minute average){% endtrans %}</dt>
+		<dd>
+			{%- if metrics.load5 -%}
+			{{ metrics.load5 }}
+			{%- else -%}
+			<em>{% trans %}unknown{% endtrans %}</em>
+			{%- endif -%}
+		</dd>
+		<dt>{% trans %}Memory use{% endtrans %}</dt>
+		<dd>
+			{%- if metrics.mem_total and metrics.mem_available -%}
+			{% trans percentage_global=((1 - (metrics.mem_available / metrics.mem_total)) | format_percent), percentage_snikket=((((metrics.prosody_rss | default(0)) + (metrics.portal_rss | default(0))) / metrics.mem_total) | format_percent), mem_available=(metrics.mem_total | format_bytes) %}{{ percentage_global }} of {{ mem_available }}. Of that, Snikket uses {{ percentage_snikket }}.{% endtrans %}
+			{%- else -%}
+			<em>{% trans %}unknown{% endtrans %}</em>
+			{%- endif -%}
+		</dd>
+	</dl>
+</div>
+<h2>{% trans %}Web portal status{% endtrans %}</h2>
+<div class="elevated el-2">
+	<dl>
+		<dt>{% trans %}Version{% endtrans %}</dt>
+		<dd>{{ version }} <a href="{{ url_for("main.about") }}">{% trans %}View all versions{% endtrans %}</a></dd>
+		<dt>{% trans %}Average CPU use{% endtrans %}</dt>
+		<dd>
+			{%- if metrics.portal_cpu -%}
+			{{ metrics.portal_cpu | format_percent }}
+			{%- else -%}
+			<em>{% trans %}unknown{% endtrans %}</em>
+			{%- endif -%}
+		</dd>
+		<dt>{% trans %}Current memory use{% endtrans %}</dt>
+		<dd>
+			{%- if metrics.portal_rss -%}
+			{{ metrics.portal_rss | format_bytes }}
+			{%- else -%}
+			<em>{% trans %}unknown{% endtrans %}</em>
+			{%- endif -%}
+		</dd>
+	</dl>
+</div>
+<h2>{% trans %}Snikket server status{% endtrans %}</h2>
+<div class="elevated el-2">
+	<dl>
+		<dt>{% trans %}Version{% endtrans %}</dt>
+		<dd>{{ prosody_version }} <a href="{{ url_for("main.about") }}">{% trans %}View all versions{% endtrans %}</a></dd>
+		<dt>{% trans %}Average CPU use{% endtrans %}</dt>
+		<dd>
+			{%- if metrics.prosody_cpu -%}
+			{{ metrics.prosody_cpu | format_percent }}
+			{%- else -%}
+			<em>{% trans %}unknown{% endtrans %}</em>
+			{%- endif -%}
+		</dd>
+		<dt>{% trans %}Current memory use{% endtrans %}</dt>
+		<dd>
+			{%- if metrics.prosody_rss -%}
+			{{ metrics.prosody_rss | format_bytes }}
+			{%- else -%}
+			<em>{% trans %}unknown{% endtrans %}</em>
+			{%- endif -%}
+		</dd>
+		<dt>{% trans %}Connected devices{% endtrans %}</dt>
+		<dd>
+			{%- if metrics.prosody_devices | default(None) is not none -%}
+			{{ metrics.prosody_devices }}
+			{%- else -%}
+			<em>{% trans %}unknown{% endtrans %}</em>
+			{%- endif -%}
+		</dd>
+	</dl>
+</div>
+{% endif %}
+<h2>{% trans %}Broadcast message{% endtrans %}</h2>
+<form method="POST">{{ form.csrf_token }}<div class="form layout-expanded">
+	<p class="form-desc">{% trans %}This form allows you to send a message to all users currently online on your Snikket server. Use it wisely.{% endtrans %}</p>
+	<div class="f-ebox">
+		{{ form.text.label }}
+		{{ form.text }}
+	</div>
+	<div class="f-ebox">
+		{{ form.online_only }}{{ form.online_only.label }}
+	</div>
+	<div class="f-bbox">
+		{%- call form_button("send", form.action_send_preview, class="primary") -%}{%- endcall -%}
+		{%- call form_button("broadcast", form.action_post_all, class="secondary accent") -%}{%- endcall -%}
+	</div>
+</div></form>
+{% endblock %}

snikket_web/translations/messages.pot

@@ -8,186 +8,206 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2021-03-25 17:32+0100\n"
+"POT-Creation-Date: 2021-05-27 17:59+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Generated-By: Babel 2.9.0\n"
+"Generated-By: Babel 2.9.1\n"
 
-#: snikket_web/admin.py:59
+#: snikket_web/admin.py:66
 msgid "Limited"
 msgstr ""
 
-#: snikket_web/admin.py:64 snikket_web/templates/admin_delete_user.html:10
+#: snikket_web/admin.py:71 snikket_web/templates/admin_delete_user.html:10
 #: snikket_web/templates/admin_users.html:8
 msgid "Login name"
 msgstr ""
 
-#: snikket_web/admin.py:68 snikket_web/templates/admin_delete_user.html:12
+#: snikket_web/admin.py:75 snikket_web/templates/admin_delete_user.html:12
 #: snikket_web/templates/admin_users.html:9 snikket_web/user.py:61
 msgid "Display name"
 msgstr ""
 
-#: snikket_web/admin.py:72 snikket_web/templates/admin_edit_user.html:33
+#: snikket_web/admin.py:79 snikket_web/templates/admin_edit_user.html:32
 msgid "Access Level"
 msgstr ""
 
-#: snikket_web/admin.py:77
+#: snikket_web/admin.py:84
 msgid "Normal user"
 msgstr ""
 
-#: snikket_web/admin.py:78
+#: snikket_web/admin.py:85
 msgid "Administrator"
 msgstr ""
 
-#: snikket_web/admin.py:83
+#: snikket_web/admin.py:90
 msgid "Update user"
 msgstr ""
 
-#: snikket_web/admin.py:87
+#: snikket_web/admin.py:94
 msgid "Create password reset link"
 msgstr ""
 
-#: snikket_web/admin.py:105
+#: snikket_web/admin.py:112
 msgid "Password reset link created"
 msgstr ""
 
-#: snikket_web/admin.py:120
+#: snikket_web/admin.py:127
 msgid "User information updated."
 msgstr ""
 
-#: snikket_web/admin.py:142
+#: snikket_web/admin.py:149
 msgid "Delete user permanently"
 msgstr ""
 
-#: snikket_web/admin.py:155
+#: snikket_web/admin.py:162
 msgid "User deleted"
 msgstr ""
 
-#: snikket_web/admin.py:193
+#: snikket_web/admin.py:200
 msgid "Password reset link not found"
 msgstr ""
 
-#: snikket_web/admin.py:205
+#: snikket_web/admin.py:212
 msgid "Password reset link deleted"
 msgstr ""
 
-#: snikket_web/admin.py:225
+#: snikket_web/admin.py:232
 msgid "Invite to circle"
 msgstr ""
 
-#: snikket_web/admin.py:231
+#: snikket_web/admin.py:238
 msgid "At least one circle must be selected"
 msgstr ""
 
-#: snikket_web/admin.py:236
+#: snikket_web/admin.py:243
 msgid "Valid for"
 msgstr ""
 
-#: snikket_web/admin.py:238
+#: snikket_web/admin.py:245
 msgid "One hour"
 msgstr ""
 
-#: snikket_web/admin.py:239
+#: snikket_web/admin.py:246
 msgid "Twelve hours"
 msgstr ""
 
-#: snikket_web/admin.py:240
+#: snikket_web/admin.py:247
 msgid "One day"
 msgstr ""
 
-#: snikket_web/admin.py:241
+#: snikket_web/admin.py:248
 msgid "One week"
 msgstr ""
 
-#: snikket_web/admin.py:242
+#: snikket_web/admin.py:249
 msgid "Four weeks"
 msgstr ""
 
-#: snikket_web/admin.py:248 snikket_web/templates/admin_edit_invite.html:17
+#: snikket_web/admin.py:255 snikket_web/templates/admin_edit_invite.html:17
 msgid "Invitation type"
 msgstr ""
 
-#: snikket_web/admin.py:250 snikket_web/templates/library.j2:116
+#: snikket_web/admin.py:257 snikket_web/templates/library.j2:116
 msgid "Individual"
 msgstr ""
 
-#: snikket_web/admin.py:251 snikket_web/templates/library.j2:114
+#: snikket_web/admin.py:258 snikket_web/templates/library.j2:114
 msgid "Group"
 msgstr ""
 
-#: snikket_web/admin.py:257
+#: snikket_web/admin.py:264
 msgid "New invitation link"
 msgstr ""
 
-#: snikket_web/admin.py:319
+#: snikket_web/admin.py:326
 msgid "Revoke"
 msgstr ""
 
-#: snikket_web/admin.py:343
+#: snikket_web/admin.py:350
 msgid "Invitation created"
 msgstr ""
 
-#: snikket_web/admin.py:359
+#: snikket_web/admin.py:366
 msgid "No such invitation exists"
 msgstr ""
 
-#: snikket_web/admin.py:374
+#: snikket_web/admin.py:381
 msgid "Invitation revoked"
 msgstr ""
 
-#: snikket_web/admin.py:391 snikket_web/admin.py:439
+#: snikket_web/admin.py:398 snikket_web/admin.py:446
 msgid "Name"
 msgstr ""
 
-#: snikket_web/admin.py:396 snikket_web/templates/admin_circles.html:47
+#: snikket_web/admin.py:403 snikket_web/templates/admin_circles.html:47
 msgid "Create circle"
 msgstr ""
 
-#: snikket_web/admin.py:426
+#: snikket_web/admin.py:433
 msgid "Circle created"
 msgstr ""
 
-#: snikket_web/admin.py:444
+#: snikket_web/admin.py:451
 msgid "Select user"
 msgstr ""
 
-#: snikket_web/admin.py:449
+#: snikket_web/admin.py:456
 msgid "Update circle"
 msgstr ""
 
-#: snikket_web/admin.py:453
+#: snikket_web/admin.py:460
 msgid "Delete circle permanently"
 msgstr ""
 
-#: snikket_web/admin.py:459
+#: snikket_web/admin.py:466
 msgid "Add user"
 msgstr ""
 
-#: snikket_web/admin.py:475
+#: snikket_web/admin.py:482
 msgid "No such circle exists"
 msgstr ""
 
-#: snikket_web/admin.py:512
+#: snikket_web/admin.py:519
 msgid "Circle data updated"
 msgstr ""
 
-#: snikket_web/admin.py:518
+#: snikket_web/admin.py:525
 msgid "Circle deleted"
 msgstr ""
 
-#: snikket_web/admin.py:529
+#: snikket_web/admin.py:536
 msgid "User added to circle"
 msgstr ""
 
-#: snikket_web/admin.py:538
+#: snikket_web/admin.py:545
 msgid "User removed from circle"
 msgstr ""
 
-#: snikket_web/infra.py:41
+#: snikket_web/admin.py:616
+msgid "Message contents"
+msgstr ""
+
+#: snikket_web/admin.py:622
+msgid "Only send to online users"
+msgstr ""
+
+#: snikket_web/admin.py:626
+msgid "Post to all users"
+msgstr ""
+
+#: snikket_web/admin.py:630
+msgid "Send preview to yourself"
+msgstr ""
+
+#: snikket_web/admin.py:652
+msgid "Announcement sent!"
+msgstr ""
+
+#: snikket_web/infra.py:51
 msgid "Main"
 msgstr ""
 
@@ -497,7 +517,7 @@ msgid "Delete user %(user_name)s"
 msgstr ""
 
 #: snikket_web/templates/admin_delete_user.html:6
-#: snikket_web/templates/admin_edit_user.html:54
+#: snikket_web/templates/admin_edit_user.html:53
 msgid "Delete user"
 msgstr ""
 
@@ -664,56 +684,56 @@ msgstr ""
 msgid "Edit user %(user_name)s"
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:23
+#: snikket_web/templates/admin_edit_user.html:22
 msgid "Edit user"
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:27
+#: snikket_web/templates/admin_edit_user.html:26
 msgid "The login name cannot be changed."
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:34
+#: snikket_web/templates/admin_edit_user.html:33
 msgid ""
 "The access level of a user determines what interactions are allowed for "
 "them on your Snikket service."
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:41
+#: snikket_web/templates/admin_edit_user.html:40
 #, python-format
 msgid "<strong>%(title)s%(icon)s</strong><p>%(description)s</p>"
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:51
+#: snikket_web/templates/admin_edit_user.html:50
 msgid "Return to user list"
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:59
+#: snikket_web/templates/admin_edit_user.html:58
 msgid "Further actions"
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:61
+#: snikket_web/templates/admin_edit_user.html:60
 msgid "Reset password"
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:64
+#: snikket_web/templates/admin_edit_user.html:63
 msgid ""
 "If the user has lost their password, you can use the button below to "
 "create a special link which allows to change the password of the account,"
 " once."
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:69
+#: snikket_web/templates/admin_edit_user.html:68
 msgid "Debug information"
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:71
+#: snikket_web/templates/admin_edit_user.html:70
 msgid ""
 "In some cases, extended information about the user account and the "
 "connected devices is necessary to troubleshoot issues. The button below "
 "reveals this (sensitive) information."
 msgstr ""
 
-#: snikket_web/templates/admin_edit_user.html:75
+#: snikket_web/templates/admin_edit_user.html:74
 msgid "Show debug information"
 msgstr ""
 
@@ -756,11 +776,28 @@ msgstr ""
 msgid "Manage invitations"
 msgstr ""
 
-#: snikket_web/templates/admin_home.html:36
-msgid "Go back to your user's web portal page."
+#: snikket_web/templates/admin_home.html:35
+msgid "System health"
 msgstr ""
 
 #: snikket_web/templates/admin_home.html:38
+msgid "View the server status or send a broadcast message to all users."
+msgstr ""
+
+#: snikket_web/templates/admin_home.html:40
+msgid "Send a broadcast message to all users."
+msgstr ""
+
+#: snikket_web/templates/admin_home.html:43
+#: snikket_web/templates/admin_system.html:4
+msgid "Manage system"
+msgstr ""
+
+#: snikket_web/templates/admin_home.html:48
+msgid "Go back to your user's web portal page."
+msgstr ""
+
+#: snikket_web/templates/admin_home.html:50
 msgid "Exit admin panel"
 msgstr ""
 
@@ -811,6 +848,77 @@ msgstr ""
 msgid "Destroy link"
 msgstr ""
 
+#: snikket_web/templates/admin_system.html:6
+msgid "Overall system status"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:9
+msgid "System load (5 minute average)"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:14
+#: snikket_web/templates/admin_system.html:22
+#: snikket_web/templates/admin_system.html:37
+#: snikket_web/templates/admin_system.html:45
+#: snikket_web/templates/admin_system.html:60
+#: snikket_web/templates/admin_system.html:68
+#: snikket_web/templates/admin_system.html:76
+msgid "unknown"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:17
+msgid "Memory use"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:20
+#, python-format
+msgid ""
+"%(percentage_global)s of %(mem_available)s. Of that, Snikket uses "
+"%(percentage_snikket)s."
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:27
+msgid "Web portal status"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:30
+#: snikket_web/templates/admin_system.html:53
+msgid "Version"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:31
+#: snikket_web/templates/admin_system.html:54
+msgid "View all versions"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:32
+#: snikket_web/templates/admin_system.html:55
+msgid "Average CPU use"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:40
+#: snikket_web/templates/admin_system.html:63
+msgid "Current memory use"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:50
+msgid "Snikket server status"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:71
+msgid "Connected devices"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:82
+msgid "Broadcast message"
+msgstr ""
+
+#: snikket_web/templates/admin_system.html:84
+msgid ""
+"This form allows you to send a message to all users currently online on "
+"your Snikket server. Use it wisely."
+msgstr ""
+
 #: snikket_web/templates/admin_users.html:19
 msgid "The user is an administrator."
 msgstr ""

tools/icons.list

@@ -8,11 +8,13 @@ action/exit_to_app:exit_to_app
 action/lock:lock
 communication/qr_code:qrcode
 communication/vpn_key:passwd
+communication/rss_feed:broadcast
 content/add_circle_outline:add
 content/add_link:create_link
 content/remove_circle_outline:remove
 content/content_copy:copy
 content/link_off:remove_link
+content/send:send
 navigation/arrow_back:back
 navigation/arrow_forward:forward
 navigation/cancel:cancel
@@ -26,3 +28,4 @@ navigation/close:close
 image/edit:edit
 action/admin_panel_settings:admin
 content/link:link
+content/insights:insights