add power module with reboot and shut down

actions/power

@@ -0,0 +1,58 @@
+#!/usr/bin/python3
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+"""
+Configuration helper for power controls.
+"""
+
+import argparse
+import subprocess
+
+
+def parse_arguments():
+    """Return parsed command line arguments as dictionary."""
+    parser = argparse.ArgumentParser()
+    subparsers = parser.add_subparsers(dest='subcommand', help='Sub command')
+
+    subparsers.add_parser('reboot', help='Reboot the system')
+    subparsers.add_parser('shutdown', help='Shut down the system')
+
+    return parser.parse_args()
+
+
+def subcommand_reboot(_):
+    """Reboot the system."""
+    subprocess.call('reboot')
+
+
+def subcommand_shutdown(_):
+    """Shut down the system."""
+    subprocess.call(['shutdown', 'now'])
+
+
+def main():
+    """Parse arguments and perform all duties."""
+    arguments = parse_arguments()
+
+    subcommand = arguments.subcommand.replace('-', '_')
+    subcommand_method = globals()['subcommand_' + subcommand]
+    subcommand_method(arguments)
+
+
+if __name__ == '__main__':
+    main()

data/etc/plinth/modules-enabled/power

@@ -0,0 +1 @@
+plinth.modules.power

plinth/modules/power/__init__.py

@@ -0,0 +1,33 @@
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+"""
+Plinth module for power controls.
+"""
+
+from django.utils.translation import ugettext as _
+
+from plinth import cfg
+
+depends = ['plinth.modules.system']
+
+
+def init():
+    """Initialize the power module."""
+    menu = cfg.main_menu.get('system:index')
+    menu.add_urlname(_('Power'), 'glyphicon-off',
+                     'power:index', 1000)

plinth/modules/power/templates/power.html

@@ -0,0 +1,51 @@
+{% extends "base.html" %}
+{% comment %}
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+{% endcomment %}
+
+{% load bootstrap %}
+{% load i18n %}
+
+{% block content %}
+
+  <h2>{{ title }}</h2>
+
+  <p>
+    {% blocktrans trimmed %}
+      From here, it is possible to reboot or shut down the system.
+    {% endblocktrans %}
+  </p>
+
+  <form class="form" method="post" action="{% url 'power:reboot' %}">
+    {% csrf_token %}
+
+    <input type="submit" class="btn btn-primary"
+           value="{% trans "Reboot... &raquo;" %}"/>
+  </form>
+
+  </br>
+
+  <form class="form" method="post" action="{% url 'power:shutdown' %}">
+    {% csrf_token %}
+
+    <input type="submit" class="btn btn-primary"
+           value="{% trans "Shut Down... &raquo;" %}"/>
+  </form>
+
+
+{% endblock %}

plinth/modules/power/templates/power_reboot.html

@@ -0,0 +1,41 @@
+\{% extends "base.html" %}
+{% comment %}
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+{% endcomment %}
+
+{% load bootstrap %}
+{% load i18n %}
+
+{% block content %}
+
+  <h2>{{ title }}</h2>
+
+  <p>
+    {% blocktrans trimmed %}
+      Are you sure you want to reboot?
+    {% endblocktrans %}
+  </p>
+
+  <form class="form" method="post" action="{% url 'power:reboot_now' %}">
+    {% csrf_token %}
+
+    <input type="submit" class="btn btn-primary"
+           value="{% trans "Reboot Now &raquo;" %}"/>
+  </form>
+
+{% endblock %}

plinth/modules/power/templates/power_shutdown.html

@@ -0,0 +1,42 @@
+{% extends "base.html" %}
+{% comment %}
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+{% endcomment %}
+
+{% load bootstrap %}
+{% load i18n %}
+
+{% block content %}
+
+  <h2>{{ title }}</h2>
+
+  <p>
+    {% blocktrans trimmed %}
+      Are you sure you want to shut down?
+    {% endblocktrans %}
+  </p>
+
+  <form class="form" method="post" action="{% url 'power:shutdown_now' %}">
+    {% csrf_token %}
+
+    <input type="submit" class="btn btn-primary"
+           value="{% trans "Shut Down Now &raquo;" %}"/>
+  </form>
+
+
+{% endblock %}

plinth/modules/power/urls.py

@@ -0,0 +1,31 @@
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+"""
+URLs for the power module.
+"""
+
+from django.conf.urls import patterns, url
+
+urlpatterns = patterns(
+    'plinth.modules.power.views',
+    url(r'^sys/power/$', 'index', name='index'),
+    url(r'^sys/power/reboot$', 'reboot', name='reboot'),
+    url(r'^sys/power/reboot/now$', 'reboot_now', name='reboot_now'),
+    url(r'^sys/power/shutdown$', 'shutdown', name='shutdown'),
+    url(r'^sys/power/shutdown/now$', 'shutdown_now', name='shutdown_now'),
+    )

plinth/modules/power/views.py

@@ -0,0 +1,53 @@
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+"""
+Plinth module for power module.
+"""
+
+from django.template.response import TemplateResponse
+from django.utils.translation import ugettext as _
+
+from plinth import actions
+
+
+def index(request):
+    """Serve power controls page."""
+    return TemplateResponse(request, 'power.html',
+                            {'title': _('Power Control')})
+
+
+def reboot(request):
+    """Serve reboot confirmation page."""
+    return TemplateResponse(request, 'power_reboot.html',
+                            {'title': _('Power Control')})
+
+
+def reboot_now(request):
+    """Reboot the system."""
+    actions.superuser_run('power', ['reboot'])
+
+
+def shutdown(request):
+    """Serve shutdown confirmation page."""
+    return TemplateResponse(request, 'power_shutdown.html',
+                            {'title': _('Power Control')})
+
+
+def shutdown_now(request):
+    """Shutdown the system."""
+    actions.superuser_run('power', ['shutdown'])