add mesh communication from django form

src/c3nav/control/forms.py

@@ -300,7 +300,7 @@ class MapUpdateForm(ModelForm):
         fields = ('geometries_changed', )
 
 
-class MeshMessageFilerForm(Form):
+class MeshMessageFilterForm(Form):
     message_types = MultipleChoiceField(
         choices=[(msgtype.value, msgtype.name) for msgtype in MessageType],
         required=False,

src/c3nav/control/templates/control/mesh_message_send.html

@@ -0,0 +1,23 @@
+{% extends 'control/base.html' %}
+{% load i18n %}
+
+{% block heading %}
+    {% if form.recipient %}
+        {% blocktrans trimmed with msg_type=form.msg_type.name recipient=form.get_recipient_display %}
+            Send {{ msg_type }} message to {{ recipient }}
+        {% endblocktrans %}
+    {% else %}
+        {% blocktrans trimmed with msg_type=form.msg_type %}
+            Send {{ msg_type }} message
+        {% endblocktrans %}
+    {% endif %}
+{% endblock %}
+
+{% block subcontent %}
+    <form method="POST" style="max-width:400px;">
+        {% csrf_token %}
+        {{ form }}
+        <button type="submit">{% trans 'Send' %}</button>
+    </form>
+
+{% endblock %}

src/c3nav/control/templates/control/mesh_messages.html

@@ -13,7 +13,7 @@
                 {{ form.src_nodes }}
             </div>
             <div class="field">
-                <button type="submit">Filer</button>
+                <button type="submit">Filter</button>
             </div>
         </div>
     </form>

src/c3nav/control/urls.py

@@ -1,6 +1,6 @@
 from django.urls import path
 
-from c3nav.control.views.mesh import MeshNodeListView, MeshMessageListView, MeshNodeDetailView
+from c3nav.control.views.mesh import MeshNodeListView, MeshMessageListView, MeshNodeDetailView, MeshMessageSendView
 from c3nav.control.views.mapupdates import map_updates
 from c3nav.control.views.announcements import announcement_list, announcement_detail
 from c3nav.control.views.access import grant_access, grant_access_qr
@@ -18,5 +18,6 @@ urlpatterns = [
     path('mesh/', MeshNodeListView.as_view(), name='control.mesh_nodes'),
     path('mesh/messages/', MeshMessageListView.as_view(), name='control.mesh_messages'),
     path('mesh/<str:pk>/', MeshNodeDetailView.as_view(), name='control.mesh_node.detail'),
+    path('mesh/<str:recipient>/message/<str:msg_type>/', MeshMessageSendView.as_view(), name='control.mesh_message.send'),
     path('', ControlPanelIndexView.as_view(), name='control.index'),
 ]

src/c3nav/control/views/mesh.py

@@ -1,8 +1,14 @@
+from django.contrib import messages
 from django.db.models import Max
-from django.views.generic import ListView, DetailView
+from django.http import Http404
+from django.urls import reverse
+from django.utils.translation import gettext_lazy as _
+from django.views.generic import ListView, DetailView, FormView
 
-from c3nav.control.forms import MeshMessageFilerForm
+from c3nav.control.forms import MeshMessageFilterForm
 from c3nav.control.views.base import ControlPanelMixin
+from c3nav.mesh.forms import MeshMessageForm
+from c3nav.mesh.messages import MessageType
 from c3nav.mesh.models import MeshNode, NodeMessage
 
 
@@ -22,6 +28,9 @@ class MeshNodeDetailView(ControlPanelMixin, DetailView):
     pk_url_kwargs = "address"
     context_object_name = "node"
 
+    def get_queryset(self):
+        return super().get_queryset().annotate(last_msg=Max('received_messages__datetime')).prefetch_last_messages()
+
 
 class MeshMessageListView(ControlPanelMixin, ListView):
     model = NodeMessage
@@ -33,7 +42,7 @@ class MeshMessageListView(ControlPanelMixin, ListView):
     def get_queryset(self):
         qs = super().get_queryset()
 
-        self.form = MeshMessageFilerForm(self.request.GET)
+        self.form = MeshMessageFilterForm(self.request.GET)
         if self.form.is_valid():
             if self.form.cleaned_data['message_types']:
                 qs = qs.filter(message_type__in=self.form.cleaned_data['message_types'])
@@ -53,3 +62,40 @@ class MeshMessageListView(ControlPanelMixin, ListView):
             'form_data': form_data.urlencode(),
         })
         return ctx
+
+
+class MeshMessageSendView(ControlPanelMixin, FormView):
+    template_name = "control/mesh_message_send.html"
+
+    def get_form_class(self):
+        try:
+            return MeshMessageForm.get_form_for_type(MessageType[self.kwargs['msg_type']])
+        except KeyError:
+            raise Http404('unknown message type')
+
+    def get_form_kwargs(self):
+        return {
+            **super().get_form_kwargs(),
+            'recipient': self.kwargs.get('recipient', None),
+        }
+
+    def get_initial(self):
+        if 'recipient' in self.kwargs and self.kwargs['msg_type'].startswith('CONFIG_'):
+            try:
+                node = MeshNode.objects.get(address=self.kwargs['recipient'])
+            except MeshNode.DoesNotExist:
+                pass
+            else:
+                return node.last_messages[self.kwargs['msg_type']].parsed.tojson()
+        return {}
+
+    def get_success_url(self):
+        if 'recipient' in self.kwargs and False:
+            return reverse('control.mesh_node.detail', kwargs={'pk': self.kwargs['recipient']})
+        else:
+            return self.request.path
+
+    def form_valid(self, form):
+        form.send()
+        messages.success(self.request, _('Message sent successfully'))
+        return super().form_valid(form)

src/c3nav/control/views/utils.py

@@ -0,0 +1,2 @@
+def get_mesh_comm_group(address):
+    return 'mesh_comm_%s' % address.replace(':', '-')

src/c3nav/mesh/consumers.py

@@ -4,7 +4,9 @@ from asgiref.sync import async_to_sync
 from channels.generic.websocket import WebsocketConsumer
 from django.utils import timezone
 
+from c3nav.control.views.utils import get_mesh_comm_group
 from c3nav.mesh import messages
+from c3nav.mesh.messages import Message, BROADCAST_ADDRESS
 from c3nav.mesh.models import MeshNode, NodeMessage
 
 
@@ -21,7 +23,7 @@ class MeshConsumer(WebsocketConsumer):
         print('disconnected!')
         if self.uplink_node is not None:
             # leave broadcast group
-            async_to_sync(self.channel_layer.group_add)('mesh_broadcast', self.channel_name)
+            async_to_sync(self.channel_layer.group_add)(get_mesh_comm_group(BROADCAST_ADDRESS), self.channel_name)
 
             # remove all other destinations
             self.remove_dst_nodes(self.dst_nodes)
@@ -64,7 +66,7 @@ class MeshConsumer(WebsocketConsumer):
             async_to_sync(self.channel_layer.group_add)('mesh_broadcast', self.channel_name)
 
             # kick out other consumers talking to the same uplink
-            async_to_sync(self.channel_layer.group_send)(self.group_name_for_node(msg.src), {
+            async_to_sync(self.channel_layer.group_send)(get_mesh_comm_group(msg.src), {
                 "type": "mesh.uplink_consumer",
                 "name": self.channel_name,
             })
@@ -93,6 +95,9 @@ class MeshConsumer(WebsocketConsumer):
             print('leaving node group...')
             self.remove_dst_nodes((data["address"], ))
 
+    def mesh_send(self, data):
+        self.send_msg(Message.fromjson(data["msg"]))
+
     def log_received_message(self, src_node: MeshNode, msg: messages.Message):
         NodeMessage.objects.create(
             uplink_node=self.uplink_node,
@@ -104,7 +109,7 @@ class MeshConsumer(WebsocketConsumer):
     def add_dst_nodes(self, addresses):
         for address in addresses:
             # create group name for this address
-            group = self.group_name_for_node(address)
+            group = self.comm_address_group(address)
 
             # if we aren't handling this address yet, join the group
             if address not in self.dst_nodes:
@@ -133,9 +138,9 @@ class MeshConsumer(WebsocketConsumer):
         )
 
     def remove_dst_nodes(self, addresses):
-        for address in addresses:
+        for address in tuple(addresses):
             # create group name for this address
-            group = self.group_name_for_node(address)
+            group = self.comm_address_group(address)
 
             # leave the group
             if address in self.dst_nodes:
@@ -149,8 +154,5 @@ class MeshConsumer(WebsocketConsumer):
         #     last_signin=timezone.now(),
         # )
 
-    def group_name_for_node(self, address):
-        return 'mesh_%s' % address.replace(':', '-')
-
     def remove_route(self, route_address):
         MeshNode.objects.filter(route_id=route_address).update(route_id=None)

src/c3nav/mesh/dataformats.py

@@ -25,7 +25,7 @@ class FixedStrFormat:
         self.num = num
 
     def encode(self, value):
-        return struct.pack('%ss' % self.num, value)
+        return struct.pack('%ss' % self.num, value.encode())
 
     def decode(self, data: bytes):
         return struct.unpack('%ss' % self.num, data[:self.num])[0].rstrip(bytes((0, ))).decode(), data[self.num:]
@@ -33,7 +33,7 @@ class FixedStrFormat:
 
 class BoolFormat:
     def encode(self, value):
-        return struct.pack('B', (int(value), ))
+        return struct.pack('B', int(value))
 
     def decode(self, data: bytes):
         return bool(struct.unpack('B', data[:1])[0]), data[1:]

src/c3nav/mesh/forms.py

@@ -0,0 +1,86 @@
+from django import forms
+from django.http import Http404
+from django.utils.translation import gettext_lazy as _
+
+from c3nav.mesh.messages import MessageType, Message, ROOT_ADDRESS
+from c3nav.mesh.models import MeshNode
+
+
+class MeshMessageForm(forms.Form):
+    msg_types = {}
+
+    recipients = forms.MultipleChoiceField(choices=())
+
+    def __init__(self, *args, recipient=None, initial=None, **kwargs):
+        self.recipient = recipient
+        if self.recipient is not None:
+            initial = {
+                **(initial or {}),
+                'recipients': [self.recipient],
+            }
+        super().__init__(*args, initial=initial, **kwargs)
+
+        recipient_root_choices = {
+            'ff:ff:ff:ff:ff:ff': _('broadcast')
+        }
+        recipient_node_choices = {
+            node.address: str(node) for node in MeshNode.objects.all()
+        }
+        self.recipient_choices = {
+            **recipient_root_choices,
+            **recipient_node_choices,
+        }
+        if self.recipient is None:
+            self.fields['recipients'].choices = (
+                *recipient_root_choices.items(),
+                (_('nodes'), tuple(recipient_node_choices.items()))
+            )
+        else:
+            if self.recipient not in self.recipient_choices:
+                raise Http404
+            self.fields.pop('recipients')
+
+    # noinspection PyMethodOverriding
+    def __init_subclass__(cls, /, msg=None, **kwargs):
+        super().__init_subclass__(**kwargs)
+        if cls.msg_type in MeshMessageForm.msg_types:
+            raise TypeError('duplicate use of msg %s' % cls.msg_type)
+        MeshMessageForm.msg_types[cls.msg_type] = cls
+
+    @classmethod
+    def get_form_for_type(cls, msg_type):
+        return cls.msg_types[msg_type]
+
+    def get_recipient_display(self):
+        return self.recipient_choices[self.recipient]
+
+
+class ConfigUplinkMessageForm(MeshMessageForm):
+    msg_type = MessageType.CONFIG_UPLINK
+
+    enabled = forms.BooleanField(required=False, label=_('enabled'))
+    ssid = forms.CharField(required=False, label=_('ssid'), max_length=31)
+    password = forms.CharField(required=False, label=_('password'), max_length=63)
+    channel = forms.IntegerField(min_value=0, max_value=11, label=_('channel'))
+    udp = forms.BooleanField(required=False, label=_('udp'))
+    ssl = forms.BooleanField(required=False, label=_('ssl'))
+    host = forms.CharField(required=False, label=_('host'), max_length=63)
+    port = forms.IntegerField(min_value=1, max_value=65535, label=_('port'))
+
+    def send(self):
+        if not self.is_valid():
+            raise Exception('nope')
+
+        msg_data = {
+            'msg_id': self.msg_type,
+            'src': ROOT_ADDRESS,
+            **self.cleaned_data,
+        }
+
+        recipients = [self.recipient] if self.recipient else self.cleaned_data['recipients']
+        for recipient in recipients:
+            print('sending to ', recipient)
+            Message.fromjson({
+                'dst': recipient,
+                **msg_data,
+            }).send()

src/c3nav/mesh/messages.py

@@ -2,11 +2,16 @@ from dataclasses import asdict, dataclass, field, fields, is_dataclass
 from enum import IntEnum, unique
 from typing import TypeVar
 
+import channels
+from asgiref.sync import async_to_sync
+
+from c3nav.control.views.utils import get_mesh_comm_group
 from c3nav.mesh.dataformats import (BoolFormat, FixedStrFormat, HexFormat, LedConfig, LedConfigFormat,
                                     MacAddressesListFormat, MacAddressFormat, SimpleFormat, VarStrFormat)
 
 ROOT_ADDRESS = '00:00:00:00:00:00'
 PARENT_ADDRESS = '00:00:00:ff:ff:ff'
+BROADCAST_ADDRESS = 'ff:ff:ff:ff:ff:ff'
 NO_LAYER = 0xFF
 
 
@@ -60,7 +65,6 @@ class Message:
 
     @classmethod
     def decode(cls, data: bytes) -> M:
-        # print('decode', data.hex(' '))
         klass = cls.msg_types[data[12]]
         values = {}
         for field_ in fields(klass):
@@ -80,6 +84,12 @@ class Message:
                 kwargs[field_.name] = field_.type.fromjson(kwargs[field_.name])
         return klass(**kwargs)
 
+    def send(self):
+        async_to_sync(channels.layers.get_channel_layer().group_send)(get_mesh_comm_group(self.dst), {
+            "type": "mesh.send",
+            "msg": self.tojson()
+        })
+
 
 @dataclass
 class EchoRequestMessage(Message, msg_id=MessageType.ECHO_REQUEST):