diff --git a/nonebot/adapters/__init__.py b/nonebot/adapters/__init__.py
index c12d96bb..9f7c69b7 100644
--- a/nonebot/adapters/__init__.py
+++ b/nonebot/adapters/__init__.py
@@ -1,19 +1,24 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-from typing import Any, Dict, Optional
+import abc
+from functools import reduce
+from typing import Dict, Union, Iterable, Optional
 
 from nonebot.config import Config
 
 
-class BaseBot(object):
+class BaseBot(abc.ABC):
 
+    @abc.abstractmethod
     def __init__(self, type: str, config: Config, *, websocket=None):
         raise NotImplementedError
 
+    @abc.abstractmethod
     async def handle_message(self, message: dict):
         raise NotImplementedError
 
+    @abc.abstractmethod
     async def call_api(self, api: str, data: dict):
         raise NotImplementedError
 
@@ -64,8 +69,73 @@ class BaseMessageSegment(dict):
 
 class BaseMessage(list):
 
-    def __init__(self, message: str = None):
-        raise NotImplementedError
+    def __init__(self,
+                 message: Union[str, BaseMessageSegment, "BaseMessage"] = None,
+                 *args,
+                 **kwargs):
+        super().__init__(*args, **kwargs)
+        if isinstance(message, str):
+            self.extend(self._construct(message))
+        elif isinstance(message, BaseMessage):
+            self.extend(message)
+        elif isinstance(message, BaseMessageSegment):
+            self.append(message)
 
     def __str__(self):
         return ''.join((str(seg) for seg in self))
+
+    @staticmethod
+    def _construct(msg: str) -> Iterable[BaseMessageSegment]:
+        raise NotImplementedError
+
+    def __add__(
+            self, other: Union[str, BaseMessageSegment,
+                               "BaseMessage"]) -> "BaseMessage":
+        result = self.__class__(self)
+        if isinstance(other, str):
+            result.extend(self._construct(other))
+        elif isinstance(other, BaseMessageSegment):
+            result.append(other)
+        elif isinstance(other, BaseMessage):
+            result.extend(other)
+        return result
+
+    def __radd__(self, other: Union[str, BaseMessageSegment, "BaseMessage"]):
+        result = self.__class__(other)
+        return result.__add__(self)
+
+    def append(self, obj: Union[str, BaseMessageSegment]) -> "BaseMessage":
+        if isinstance(obj, BaseMessageSegment):
+            if obj.type == "text" and self and self[-1].type == "text":
+                self[-1].data["text"] += obj.data["text"]
+            else:
+                super().append(obj)
+        elif isinstance(obj, str):
+            self.extend(self._construct(obj))
+        else:
+            raise ValueError(f"Unexpected type: {type(obj)} {obj}")
+        return self
+
+    def extend(
+        self, obj: Union["BaseMessage",
+                         Iterable[BaseMessageSegment]]) -> "BaseMessage":
+        for segment in obj:
+            self.append(segment)
+        return self
+
+    def reduce(self) -> None:
+        index = 0
+        while index < len(self):
+            if index > 0 and self[
+                    index - 1].type == "text" and self[index].type == "text":
+                self[index - 1].data["text"] += self[index].data["text"]
+                del self[index]
+            else:
+                index += 1
+
+    def extract_plain_text(self) -> str:
+
+        def _concat(x: str, y: BaseMessageSegment) -> str:
+            return f"{x} {y.data['text']}" if y.type == "text" else x
+
+        return reduce(_concat, self, "")
diff --git a/nonebot/adapters/coolq.py b/nonebot/adapters/coolq.py
index f31feaab..376e27f7 100644
--- a/nonebot/adapters/coolq.py
+++ b/nonebot/adapters/coolq.py
@@ -1,6 +1,9 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
+import re
+from typing import Tuple, Iterable, Optional
+
 import httpx
 
 from nonebot.event import Event
@@ -32,16 +35,21 @@ def unescape(s: str) -> str:
         .replace("&amp;", "&")
 
 
+def _b2s(b: bool) -> str:
+    return str(b).lower()
+
+
 class Bot(BaseBot):
 
     def __init__(self,
-                 type_: str,
+                 connection_type: str,
                  config: Config,
                  *,
                  websocket: BaseWebSocket = None):
-        if type_ not in ["http", "websocket"]:
+        if connection_type not in ["http", "websocket"]:
             raise ValueError("Unsupported connection type")
-        self.type = type_
+        self.type = "coolq"
+        self.connection_type = connection_type
         self.config = config
         self.websocket = websocket
 
@@ -49,10 +57,20 @@ class Bot(BaseBot):
         # TODO: convert message into event
         event = Event.from_payload(message)
 
+        if not event:
+            return
+
+        if "message" in event.keys():
+            event["message"] = Message(event["message"])
+
         # TODO: Handle Meta Event
-        await handle_event(self, event)
+        if event.type == "meta_event":
+            pass
+        else:
+            await handle_event(self, event)
 
     async def call_api(self, api: str, data: dict):
+        # TODO: Call API
         if self.type == "websocket":
             pass
         elif self.type == "http":
@@ -66,15 +84,22 @@ class MessageSegment(BaseMessageSegment):
         data = self.data.copy()
 
         # process special types
-        if type_ == "text":
-            return escape(data.get("text", ""), escape_comma=False)
-        elif type_ == "at_all":
+        if type_ == "at_all":
             type_ = "at"
             data = {"qq": "all"}
+        elif type_ == "poke":
+            type_ = "shake"
+            data.clear()
+        elif type_ == "text":
+            return escape(data.get("text", ""), escape_comma=False)
 
         params = ",".join([f"{k}={escape(str(v))}" for k, v in data.items()])
         return f"[CQ:{type_}{',' if params else ''}{params}]"
 
+    @staticmethod
+    def anonymous(ignore_failure: bool = False) -> "MessageSegment":
+        return MessageSegment("anonymous", {"ignore": _b2s(ignore_failure)})
+
     @staticmethod
     def at(user_id: int) -> "MessageSegment":
         return MessageSegment("at", {"qq": str(user_id)})
@@ -84,9 +109,138 @@ class MessageSegment(BaseMessageSegment):
         return MessageSegment("at_all")
 
     @staticmethod
-    def dice() -> "MessageSegment":
-        return MessageSegment(type_="dice")
+    def contact_group(group_id: int) -> "MessageSegment":
+        return MessageSegment("contact", {"type": "group", "id": str(group_id)})
+
+    @staticmethod
+    def contact_user(user_id: int) -> "MessageSegment":
+        return MessageSegment("contact", {"type": "qq", "id": str(user_id)})
+
+    @staticmethod
+    def face(id_: int) -> "MessageSegment":
+        return MessageSegment("face", {"id": str(id_)})
+
+    @staticmethod
+    def image(file: str) -> "MessageSegment":
+        return MessageSegment("image", {"file": "file"})
+
+    @staticmethod
+    def location(latitude: float,
+                 longitude: float,
+                 title: str = "",
+                 content: str = "") -> "MessageSegment":
+        return MessageSegment(
+            "location", {
+                "lat": str(latitude),
+                "lon": str(longitude),
+                "title": title,
+                "content": content
+            })
+
+    @staticmethod
+    def magic_face(type_: str) -> "MessageSegment":
+        if type_ not in ["dice", "rpc"]:
+            raise ValueError(
+                f"Coolq doesn't support magic face type {type_}. Supported types: dice, rpc."
+            )
+        return MessageSegment("magic_face", {"type": type_})
+
+    @staticmethod
+    def music(type_: str,
+              id_: int,
+              style: Optional[int] = None) -> "MessageSegment":
+        if style is None:
+            return MessageSegment("music", {"type": type_, "id": id_})
+        else:
+            return MessageSegment("music", {
+                "type": type_,
+                "id": id_,
+                "style": style
+            })
+
+    @staticmethod
+    def music_custom(type_: str,
+                     url: str,
+                     audio: str,
+                     title: str,
+                     content: str = "",
+                     img_url: str = "") -> "MessageSegment":
+        return MessageSegment(
+            "music", {
+                "type": type_,
+                "url": url,
+                "audio": audio,
+                "title": title,
+                "content": content,
+                "image": img_url
+            })
+
+    @staticmethod
+    def poke(type_: str = "Poke") -> "MessageSegment":
+        if type_ not in ["Poke"]:
+            raise ValueError(
+                f"Coolq doesn't support poke type {type_}. Supported types: Poke."
+            )
+        return MessageSegment("poke", {"type": type_})
+
+    @staticmethod
+    def record(file: str, magic: bool = False) -> "MessageSegment":
+        return MessageSegment("record", {"file": file, "magic": _b2s(magic)})
+
+    @staticmethod
+    def share(url: str = "",
+              title: str = "",
+              content: str = "",
+              img_url: str = "") -> "MessageSegment":
+        return MessageSegment("share", {
+            "url": url,
+            "title": title,
+            "content": content,
+            "img_url": img_url
+        })
+
+    @staticmethod
+    def text(text: str) -> "MessageSegment":
+        return MessageSegment("text", {"text": text})
 
 
 class Message(BaseMessage):
-    pass
+
+    @staticmethod
+    def _construct(msg: str) -> Iterable[MessageSegment]:
+
+        def _iter_message() -> Iterable[Tuple[str, str]]:
+            text_begin = 0
+            for cqcode in re.finditer(
+                    r"\[CQ:(?P<type>[a-zA-Z0-9-_.]+)"
+                    r"(?P<params>"
+                    r"(?:,[a-zA-Z0-9-_.]+=?[^,\]]*)*"
+                    r"),?\]", msg):
+                yield "text", unescape(msg[text_begin:cqcode.pos +
+                                           cqcode.start()])
+                text_begin = cqcode.pos + cqcode.end()
+                yield cqcode.group("type"), cqcode.group("params").lstrip(",")
+            yield "text", unescape(msg[text_begin:])
+
+        for type_, data in _iter_message():
+            if type_ == "text":
+                if data:
+                    # only yield non-empty text segment
+                    yield MessageSegment(type_, {"text": data})
+            else:
+                data = {
+                    k: v for k, v in map(
+                        lambda x: x.split("=", maxsplit=1),
+                        filter(lambda x: x, (
+                            x.lstrip() for x in data.split(","))))
+                }
+                if type_ == "at" and data["qq"] == "all":
+                    type_ = "at_all"
+                    data.clear()
+                elif type_ in ["dice", "rpc"]:
+                    type_ = "magic_face"
+                    data["type"] = type_
+                elif type_ == "shake":
+                    type_ = "poke"
+                    data["type"] = "Poke"
+                yield MessageSegment(type_, data)
diff --git a/nonebot/drivers/__init__.py b/nonebot/drivers/__init__.py
index 49de914c..e4b88764 100644
--- a/nonebot/drivers/__init__.py
+++ b/nonebot/drivers/__init__.py
@@ -1,29 +1,35 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
+import abc
 from typing import Optional
 from ipaddress import IPv4Address
 
 from nonebot.config import Config
 
 
-class BaseDriver(object):
+class BaseDriver(abc.ABC):
 
+    @abc.abstractmethod
     def __init__(self, config: Config):
         raise NotImplementedError
 
     @property
+    @abc.abstractmethod
     def server_app(self):
         raise NotImplementedError
 
     @property
+    @abc.abstractmethod
     def asgi(self):
         raise NotImplementedError
 
     @property
+    @abc.abstractmethod
     def logger(self):
         raise NotImplementedError
 
+    @abc.abstractmethod
     def run(self,
             host: Optional[IPv4Address] = None,
             port: Optional[int] = None,
@@ -31,37 +37,47 @@ class BaseDriver(object):
             **kwargs):
         raise NotImplementedError
 
+    @abc.abstractmethod
     async def _handle_http(self):
         raise NotImplementedError
 
+    @abc.abstractmethod
     async def _handle_ws_reverse(self):
         raise NotImplementedError
 
+    @abc.abstractmethod
     async def _handle_http_api(self):
         raise NotImplementedError
 
 
 class BaseWebSocket(object):
 
+    @abc.abstractmethod
     def __init__(self, websocket):
         self._websocket = websocket
 
     @property
+    @abc.abstractmethod
     def websocket(self):
         return self._websocket
 
     @property
+    @abc.abstractmethod
     def closed(self):
         raise NotImplementedError
 
+    @abc.abstractmethod
     async def accept(self):
         raise NotImplementedError
 
+    @abc.abstractmethod
     async def close(self):
         raise NotImplementedError
 
+    @abc.abstractmethod
     async def receive(self) -> dict:
         raise NotImplementedError
 
+    @abc.abstractmethod
     async def send(self, data: dict):
         raise NotImplementedError
diff --git a/nonebot/event.py b/nonebot/event.py
index e5e576ac..d88138d8 100644
--- a/nonebot/event.py
+++ b/nonebot/event.py
@@ -29,7 +29,7 @@ class Event(dict):
         """
         事件类型，有 ``message``、``notice``、``request``、``meta_event`` 等。
         """
-        return self['post_type']
+        return self["post_type"]
 
     @property
     def detail_type(self) -> str:
@@ -37,7 +37,7 @@ class Event(dict):
         事件具体类型，依 `type` 的不同而不同，以 ``message`` 类型为例，有
         ``private``、``group``、``discuss`` 等。
         """
-        return self[f'{self.type}_type']
+        return self[f"{self.type}_type"]
 
     @property
     def sub_type(self) -> Optional[str]:
@@ -45,7 +45,7 @@ class Event(dict):
         事件子类型，依 `detail_type` 不同而不同，以 ``message.private`` 为例，有
         ``friend``、``group``、``discuss``、``other`` 等。
         """
-        return self.get('sub_type')
+        return self.get("sub_type")
 
     @property
     def name(self):
@@ -53,75 +53,75 @@ class Event(dict):
         事件名，对于有 `sub_type` 的事件，为 ``{type}.{detail_type}.{sub_type}``，否则为
         ``{type}.{detail_type}``。
         """
-        n = self.type + '.' + self.detail_type
+        n = self.type + "." + self.detail_type
         if self.sub_type:
-            n += '.' + self.sub_type
+            n += "." + self.sub_type
         return n
 
     @property
     def self_id(self) -> int:
         """机器人自身 ID。"""
-        return self['self_id']
+        return self["self_id"]
 
     @property
     def user_id(self) -> Optional[int]:
         """用户 ID。"""
-        return self.get('user_id')
+        return self.get("user_id")
 
     @property
     def operator_id(self) -> Optional[int]:
         """操作者 ID。"""
-        return self.get('operator_id')
+        return self.get("operator_id")
 
     @property
     def group_id(self) -> Optional[int]:
         """群 ID。"""
-        return self.get('group_id')
+        return self.get("group_id")
 
     @property
     def discuss_id(self) -> Optional[int]:
         """讨论组 ID。"""
-        return self.get('discuss_id')
+        return self.get("discuss_id")
 
     @property
     def message_id(self) -> Optional[int]:
         """消息 ID。"""
-        return self.get('message_id')
+        return self.get("message_id")
 
     @property
     def message(self) -> Optional[Any]:
         """消息。"""
-        return self.get('message')
+        return self.get("message")
 
     @property
     def raw_message(self) -> Optional[str]:
         """未经 CQHTTP 处理的原始消息。"""
-        return self.get('raw_message')
+        return self.get("raw_message")
 
     @property
     def sender(self) -> Optional[Dict[str, Any]]:
         """消息发送者信息。"""
-        return self.get('sender')
+        return self.get("sender")
 
     @property
     def anonymous(self) -> Optional[Dict[str, Any]]:
         """匿名信息。"""
-        return self.get('anonymous')
+        return self.get("anonymous")
 
     @property
     def file(self) -> Optional[Dict[str, Any]]:
         """文件信息。"""
-        return self.get('file')
+        return self.get("file")
 
     @property
     def comment(self) -> Optional[str]:
         """请求验证消息。"""
-        return self.get('comment')
+        return self.get("comment")
 
     @property
     def flag(self) -> Optional[str]:
         """请求标识。"""
-        return self.get('flag')
+        return self.get("flag")
 
     def __repr__(self) -> str:
-        return f'<Event, {super().__repr__()}>'
+        return f"<Event, {super().__repr__()}>"
diff --git a/tests/test_plugins/test_matcher.py b/tests/test_plugins/test_matcher.py
index 08472417..f7bf957c 100644
--- a/tests/test_plugins/test_matcher.py
+++ b/tests/test_plugins/test_matcher.py
@@ -4,6 +4,9 @@
 from nonebot.rule import Rule
 from nonebot.event import Event
 from nonebot.plugin import on_message
+from nonebot.adapters.coolq import Message
+
+print(repr(Message("asdfasdf[CQ:at,qq=123][CQ:at,qq=all]")))
 
 test_matcher = on_message(Rule(), state={"default": 1})