add chat

NewMediaMonitoring/routing.py

@@ -0,0 +1,5 @@
+from channels.routing import ProtocolTypeRouter
+
+application = ProtocolTypeRouter({
+    # (http->django views is added by default)
+})

NewMediaMonitoring/settings.py

@@ -31,6 +31,7 @@ ALLOWED_HOSTS = ['*']
 # Application definition
 
 INSTALLED_APPS = [
+    'channels',
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',
@@ -79,6 +80,7 @@ TEMPLATES = [
 ]
 
 WSGI_APPLICATION = 'NewMediaMonitoring.wsgi.application'
+ASGI_APPLICATION = 'NewMediaMonitoring.routing.application'
 
 # Database
 # https://docs.djangoproject.com/en/2.1/ref/settings/#databases
@@ -149,6 +151,12 @@ CORS_ORIGIN_ALLOW_ALL = True
 
 CORS_URLS_REGEX = r'^/polls/.*$'
 
+SMS_REGION = 'cn-hangzhou'
+
+SMS_ACCESS_KEY_ID = 'LTAIBfgqfC2fpIDF'
+
+SMS_ACCESS_KEY_SECRET = 'ocBzC2UvguYbyR6coNGYdPiV5HdWbC'
+
 try:
     from .local_settings import *
 except ImportError as e:

polls/consumers.py

@@ -0,0 +1,185 @@
+from django.conf import settings
+
+from channels.generic.websocket import AsyncJsonWebsocketConsumer
+
+from .exceptions import ClientError
+from .utils import get_room_or_error
+
+
+class ChatConsumer(AsyncJsonWebsocketConsumer):
+    """
+    This chat consumer handles websocket connections for chat clients.
+
+    It uses AsyncJsonWebsocketConsumer, which means all the handling functions
+    must be async functions, and any sync work (like ORM access) has to be
+    behind database_sync_to_async or sync_to_async. For more, read
+    http://channels.readthedocs.io/en/latest/topics/consumers.html
+    """
+
+    ##### WebSocket event handlers
+
+    async def connect(self):
+        """
+        Called when the websocket is handshaking as part of initial connection.
+        """
+        # Are they logged in?
+        if self.scope["user"].is_anonymous:
+            # Reject the connection
+            await self.close()
+        else:
+            # Accept the connection
+            await self.accept()
+        # Store which rooms the user has joined on this connection
+        self.rooms = set()
+
+    async def receive_json(self, content):
+        """
+        Called when we get a text frame. Channels will JSON-decode the payload
+        for us and pass it as the first argument.
+        """
+        # Messages will have a "command" key we can switch on
+        command = content.get("command", None)
+        try:
+            if command == "join":
+                # Make them join the room
+                await self.join_room(content["room"])
+            elif command == "leave":
+                # Leave the room
+                await self.leave_room(content["room"])
+            elif command == "send":
+                await self.send_room(content["room"], content["message"])
+        except ClientError as e:
+            # Catch any errors and send it back
+            await self.send_json({"error": e.code})
+
+    async def disconnect(self, code):
+        """
+        Called when the WebSocket closes for any reason.
+        """
+        # Leave all the rooms we are still in
+        for room_id in list(self.rooms):
+            try:
+                await self.leave_room(room_id)
+            except ClientError:
+                pass
+
+    ##### Command helper methods called by receive_json
+
+    async def join_room(self, room_id):
+        """
+        Called by receive_json when someone sent a join command.
+        """
+        # The logged-in user is in our scope thanks to the authentication ASGI middleware
+        room = await get_room_or_error(room_id, self.scope["user"])
+        # Send a join message if it's turned on
+        if settings.NOTIFY_USERS_ON_ENTER_OR_LEAVE_ROOMS:
+            await self.channel_layer.group_send(
+                room.group_name,
+                {
+                    "type": "chat.join",
+                    "room_id": room_id,
+                    "username": self.scope["user"].username,
+                }
+            )
+        # Store that we're in the room
+        self.rooms.add(room_id)
+        # Add them to the group so they get room messages
+        await self.channel_layer.group_add(
+            room.group_name,
+            self.channel_name,
+        )
+        # Instruct their client to finish opening the room
+        await self.send_json({
+            "join": str(room.id),
+            "title": room.title,
+        })
+
+    async def leave_room(self, room_id):
+        """
+        Called by receive_json when someone sent a leave command.
+        """
+        # The logged-in user is in our scope thanks to the authentication ASGI middleware
+        room = await get_room_or_error(room_id, self.scope["user"])
+        # Send a leave message if it's turned on
+        if settings.NOTIFY_USERS_ON_ENTER_OR_LEAVE_ROOMS:
+            await self.channel_layer.group_send(
+                room.group_name,
+                {
+                    "type": "chat.leave",
+                    "room_id": room_id,
+                    "username": self.scope["user"].username,
+                }
+            )
+        # Remove that we're in the room
+        self.rooms.discard(room_id)
+        # Remove them from the group so they no longer get room messages
+        await self.channel_layer.group_discard(
+            room.group_name,
+            self.channel_name,
+        )
+        # Instruct their client to finish closing the room
+        await self.send_json({
+            "leave": str(room.id),
+        })
+
+    async def send_room(self, room_id, message):
+        """
+        Called by receive_json when someone sends a message to a room.
+        """
+        # Check they are in this room
+        if room_id not in self.rooms:
+            raise ClientError("ROOM_ACCESS_DENIED")
+        # Get the room and send to the group about it
+        room = await get_room_or_error(room_id, self.scope["user"])
+        await self.channel_layer.group_send(
+            room.group_name,
+            {
+                "type": "chat.message",
+                "room_id": room_id,
+                "username": self.scope["user"].username,
+                "message": message,
+            }
+        )
+
+    ##### Handlers for messages sent over the channel layer
+
+    # These helper methods are named by the types we send - so chat.join becomes chat_join
+    async def chat_join(self, event):
+        """
+        Called when someone has joined our chat.
+        """
+        # Send a message down to the client
+        await self.send_json(
+            {
+                "msg_type": settings.MSG_TYPE_ENTER,
+                "room": event["room_id"],
+                "username": event["username"],
+            },
+        )
+
+    async def chat_leave(self, event):
+        """
+        Called when someone has left our chat.
+        """
+        # Send a message down to the client
+        await self.send_json(
+            {
+                "msg_type": settings.MSG_TYPE_LEAVE,
+                "room": event["room_id"],
+                "username": event["username"],
+            },
+        )
+
+    async def chat_message(self, event):
+        """
+        Called when someone has messaged our chat.
+        """
+        # Send a message down to the client
+        await self.send_json(
+            {
+                "msg_type": settings.MSG_TYPE_MESSAGE,
+                "room": event["room_id"],
+                "username": event["username"],
+                "message": event["message"],
+            },
+        )

polls/exceptions.py

@@ -0,0 +1,8 @@
+class ClientError(Exception):
+    """
+    Custom exception class that is caught by the websocket receive()
+    handler and translated into a send back to the client.
+    """
+    def __init__(self, code):
+        super().__init__(code)
+        self.code = code

polls/models.py

@@ -1,18 +1,23 @@
 from django.db import models
 import uuid
 import datetime
+from django.contrib.auth.models import User
+
+from dashboard.models import Group
 
 VERIFY_CODE_TYPE_CHOICES = (
     (0, 'register'),
     (1, 'password_recover'),
 )
 
+
 class VerifyCode(models.Model):
     id = models.UUIDField('id', primary_key=True, default=uuid.uuid4)
     code = models.CharField('code', max_length=8, null=False)
     phone = models.CharField('phone', max_length=11, null=False)
     timeouted = models.DateTimeField('timeouted', null=False)
-    category = models.IntegerField('category', choices=VERIFY_CODE_TYPE_CHOICES, default=0)
+    category = models.IntegerField(
+        'category', choices=VERIFY_CODE_TYPE_CHOICES, default=0)
     added = models.DateTimeField(auto_now_add=True)
     updated = models.DateTimeField(auto_now=True)
 
@@ -23,6 +28,73 @@ class VerifyCode(models.Model):
         now = datetime.datetime.now()
         return now <= self.timeouted
 
+    def __str__(self):
+        return self.phone + ':' + self.code
+
+
+class Notice(models.Model):
+    id = models.UUIDField('id', primary_key=True, default=uuid.uuid4)
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
+    content = models.CharField('内容', max_length=256, null=False)
+    is_read = models.BooleanField('是否删除', default=False)
+    added = models.DateTimeField(auto_now_add=True)
+    updated = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        ordering = ["-added"]
+
+    def is_in_progress(self):
+        now = datetime.datetime.now()
+        return now <= self.timeouted
 
     def __str__(self):
         return self.phone + ':' + self.code
+
+
+MESSAGE_TYPE_CHOICES = (
+    (0, 'url'),
+    (1, 'file'),
+    (2, 'picture')
+)
+
+
+class Message(models.Model):
+    id = models.UUIDField('id', primary_key=True, default=uuid.uuid4)
+    category = models.IntegerField(
+        'category', choices=MESSAGE_TYPE_CHOICES, default=0)
+    send_from = models.ForeignKey(User, on_delete=models.CASCADE)
+    send_to = models.ForeignKey(Group, on_delete=models.CASCADE)
+    added = models.DateTimeField(auto_now_add=True)
+    updated = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        abstract = True
+        ordering = ["-added"]
+
+    def __str__(self):
+        return self.send_from + ':' + self.send_to
+
+
+class URLMessage(Message):
+    title = models.CharField('title', max_length=256, null=False)
+    description = models.CharField('description', max_length=512, null=False)
+    image = models.CharField('image', max_length=256, null=True, blank=True)
+    url = models.CharField('url', max_length=256, null=True, blank=True)
+
+
+class FileMessage(Message):
+    title = models.CharField('title', max_length=256, null=False)
+    file = models.FileField(upload_to='message/file/%Y/%m/%d/', null=True, blank=True)
+
+class ImageMessage(Message):
+    file = models.FileField(upload_to='resources/image/%Y/%m/%d/', null=True, blank=True)
+
+
+class MessageRecord(models.Model):
+    pass
+
+class ChatRecord(models.Model):
+    pass
+
+
+

polls/utils.py

@@ -1,10 +1,16 @@
 from aliyunsdkcore.client import AcsClient
 from aliyunsdkcore.request import CommonRequest
-
+import requests
 import random
+from parsel import Selector
+from channels.db import database_sync_to_async
+from .exceptions import ClientError
+from django.conf import settings
+
 
 def sent_sms_code(phone):
-    client = AcsClient('LTAIBfgqfC2fpIDF', 'ocBzC2UvguYbyR6coNGYdPiV5HdWbC', 'cn-hangzhou')
+    client = AcsClient(settings.SMS_ACCESS_KEY_ID,
+                       settings.SMS_ACCESS_KEY_SECRET, settings.SMS_REGION)
     request = CommonRequest()
     request.set_accept_format('json')
     request.set_domain('dysmsapi.aliyuncs.com')
@@ -22,9 +28,75 @@ def sent_sms_code(phone):
     response = client.do_action(request)
     print(type(response.decode('utf8')))
 
+
 def generate_code():
     return random.randint(1000, 9999)
 
 
+def detect_type(url):
+    if 'mp.weixin.qq.com' in url:
+        return 'weixin'
+    elif 'toutiao.com' in url:
+        return 'toutiao'
+    elif 'ixigua.com' in url:
+        return 'xigua'
+    else:
+        return 'other'
+
+
+def parse(url):
+    t = detect_type(url)
+    headers = {
+        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36 QBCore/3.53.1159.400 QQBrowser/9.0.2524.400 Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36 MicroMessenger/6.5.2.501 NetType/WIFI WindowsWechat",
+        "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
+    }
+    r = requests.get(url, headers=headers)
+    selector = Selector(text=r.text)
+    if t == 'weixin':
+        og_title = selector.xpath(
+            '//head/meta[@property="og:title"]/@content').get()
+        og_description = selector.xpath(
+            '//head/meta[@property="og:description"]/@content').get()
+        og_url = selector.xpath(
+            '//head/meta[@property="og:url"]/@content').get()
+        og_image = selector.xpath(
+            '//head/meta[@property="og:image"]/@content').get()
+    elif t == 'xigua':
+        og_title = selector.xpath(
+            '//head/meta[@property="og:title"]/@content').get()
+        og_description = selector.xpath(
+            '//head/meta[@property="og:description"]/@content').get()
+        og_url = selector.xpath(
+            '//head/meta[@property="og:url"]/@content').get()
+        og_image = selector.xpath(
+            '//head/meta[@property="og:image"]/@content').get()
+    elif t == 'toutiao':
+        og_title = selector.xpath('//head/title/text()')
+        og_description = selector.xpath(
+            '//head/meta[@name="description"]/@content').get()
+        og_url = url
+        og_image = None
+    else:
+        og_title = selector.xpath('//head/title/text()')
+        og_description = selector.xpath(
+            '//head/meta[@name="description"]/@content').get()
+        og_url = url
+        og_image = None
+    return (og_title, og_description, og_url, og_image)
+
+
+@database_sync_to_async
+def get_room_or_error(room_id, user):
+    """
+    Tries to fetch a room for the user, checking permissions along the way.
+    """
+    # Check if the user is logged in
+    if not user.is_authenticated:
+        raise ClientError("USER_HAS_TO_LOGIN")
+
+
 if __name__ == '__main__':
-    sent_sms_code('13993199566')
+    # sent_sms_code('13993199566')
+    og_title, og_description, og_url, og_image = parse(
+        'https://mp.weixin.qq.com/s/EhX0Pm1e0FAfse0zz9ow8Q')
+    print(og_title, og_description, og_url, og_image)

requirements.txt

@@ -1,7 +1,9 @@
-# Django~=2.2.15
-# django-bootstrap3
-# django-simple-captcha
-# psycopg2-binary
-# django-cors-headers
-# aliyun-python-sdk-core-v3
-
+Django~=2.2.15
+django-bootstrap3
+django-simple-captcha
+psycopg2-binary
+django-cors-headers
+aliyun-python-sdk-core-v3
+channels
+requests
+parsel