def create_group(avatar, name):
db = get_db()
fs = GridFS(db, collection="images")
filename, file_extension = os.path.splitext(avatar.filename)
if not allowed_file(file_extension):
return 'Image type is wrong!'
data = avatar.read()
sha1 = hashlib.sha1(data).hexdigest()
filename = sha1 + file_extension
image_obj = fs.find_one({"filename": filename})
if not image_obj:
image_obj = fs.put(data,
filename=filename,
content_type=avatar.content_type)
else:
image_obj = image_obj._id
# print(image_obj)
gid = db.groups.insert({
'name': name,
'avatar': image_obj,
})
db.group_user.insert({
'uid': ObjectId(session['uid']),
'gid': gid,
})
return 'ok'
def update_public_key(key):
uid = session['uid']
db = get_db()
db.users.update({'_id': uid}, {'$set': {
'publicKey': key,
}})
return jsonify({'status': 'ok'})
def post_message(uid, gid, outercypher, noncestr, ephermeralpubkey):
# print(uid, gid, outercypher, noncestr, ephermeralpubkey)
db = get_db()
db.messages.insert_one({
'uid': ObjectId(uid),
'gid': ObjectId(gid),
'outercypher': outercypher,
'noncestr': noncestr,
'ephermeralpubkey': ephermeralpubkey,
})
return jsonify({'status': "ok"})
def get_group_avatar(object_id):
db = get_db()
fs = GridFS(db, collection="images")
image_obj = fs.find_one({"_id": ObjectId(object_id)})
# print(image_obj.content_type)
response = make_response(image_obj.read())
content_type = image_obj.content_type
if not content_type:
content_type, _ = guess_type(image_obj.filename)
response.mimetype = content_type
return response
def join_group(gid):
db = get_db()
uid = ObjectId(session['uid'])
gid = ObjectId(gid)
group = db.groups.find_one({'_id': gid})
found = db.group_user.find_one({
'uid': uid,
'gid': gid,
})
if group and not found:
db.group_user.insert({
'uid': uid,
'gid': gid,
})
return 'ok'
def login(code, name, avatar, gender):
params = {
'appid': app.config['APP_ID'],
'secret': app.config['APP_SECRET'],
'js_code': code,
'grant_type': 'authorization_code',
}
r = requests.get('https://api.weixin.qq.com/sns/jscode2session',
params=params)
data = json.loads(r.text)
if data['openid']:
db = get_db()
row = db.users.find_one({'openid': data['openid']})
if not row:
# register
db.users.insert({
'openid': data['openid'],
'name': name,
'avatar': avatar,
'gender': gender,
'publicKey': '',
})
row = db.users.find_one({'openid': data['openid']})
elif name != row['name'] or avatar != row['avatar'] or gender != row[
'gender']:
# update user info
db.users.update(
{'_id': row['_id']},
{'$set': {
'name': name,
'avatar': avatar,
'gender': gender,
}})
session['openid'] = data['openid']
session['session_key'] = data['session_key']
session['uid'] = row['_id']
print(row)
print(session.sid)
return jsonify({
'sid': session.sid,
'uid': row['_id'],
'publicKey': row['publicKey'],
'avatar': row['avatar'],
})
else:
pass
def get_message(latest_message_id='{}'):
latest_message_dict = json.loads(latest_message_id)
db = get_db()
uid = session['uid']
data = {}
groups = db_get_user_groups(uid)
for group in groups:
gid = str(group['_id'])
query = {
'gid': ObjectId(gid),
'uid': {
'$ne': ObjectId(uid)
},
}
if gid in latest_message_dict:
query['_id'] = {'$gt': ObjectId(latest_message_dict[gid])}
projection = {
'uid': 0,
'gid': 0,
}
data[gid] = list(db.messages.find(query, projection))
return jsonify(data)
def get_group_users(gid):
db = get_db()
pipeline = [{
"$match": {
"gid": ObjectId(gid)
}
}, {
"$lookup": {
"from": "users",
"localField": "uid",
"foreignField": "_id",
"as": "user"
}
}, {
"$group": {
"_id": "$gid",
"users": {"$push": {"$arrayElemAt": ["$user", 0]}}
}
}]
data = list(db.group_user.aggregate(pipeline))
if data:
data = data[0]["users"]
# print(jsonify(data))
return jsonify(data)
def get_group(gid):
db = get_db()
data = db.groups.find_one({
'_id': ObjectId(gid)
})
return jsonify(data)
def get_user(uid):
db = get_db()
data = db.users.find_one({
'_id': ObjectId(uid)
})
return jsonify(data)
