python mitmproxy事件流程

class Events:
 # HTTP lifecycle
 def http_connect(self, flow: mitmproxy.http.HTTPFlow):
 """
 An HTTP CONNECT request was received. Setting a non 2xx response on
 the flow will return the response to the client abort the
 connection. CONNECT requests and responses do not generate the usual
 HTTP handler events. CONNECT requests are only valid in regular and
 upstream proxy modes.
 """

def requestheaders(self, flow: mitmproxy.http.HTTPFlow):
    """
        HTTP request headers were successfully read. At this point, the body
        is empty.
    """

def request(self, flow: mitmproxy.http.HTTPFlow):
    """
        The full HTTP request has been read.
    """

def responseheaders(self, flow: mitmproxy.http.HTTPFlow):
    """
        HTTP response headers were successfully read. At this point, the body
        is empty.
    """

def response(self, flow: mitmproxy.http.HTTPFlow):
    """
        The full HTTP response has been read.
    """

def error(self, flow: mitmproxy.http.HTTPFlow):
    """
        An HTTP error has occurred, e.g. invalid server responses, or
        interrupted connections. This is distinct from a valid server HTTP
        error response, which is simply a response with an HTTP error code.
    """

# TCP lifecycle
def tcp_start(self, flow: mitmproxy.tcp.TCPFlow):
    """
        A TCP connection has started.
    """

def tcp_message(self, flow: mitmproxy.tcp.TCPFlow):
    """
        A TCP connection has received a message. The most recent message
        will be flow.messages[-1]. The message is user-modifiable.
    """

def tcp_error(self, flow: mitmproxy.tcp.TCPFlow):
    """
        A TCP error has occurred.
    """

def tcp_end(self, flow: mitmproxy.tcp.TCPFlow):
    """
        A TCP connection has ended.
    """

# Websocket lifecycle
def websocket_handshake(self, flow: mitmproxy.http.HTTPFlow):
    """
        Called when a client wants to establish a WebSocket connection. The
        WebSocket-specific headers can be manipulated to alter the
        handshake. The flow object is guaranteed to have a non-None request
        attribute.
    """

def websocket_start(self, flow: mitmproxy.websocket.WebSocketFlow):
    """
        A websocket connection has commenced.
    """

def websocket_message(self, flow: mitmproxy.websocket.WebSocketFlow):
    """
        Called when a WebSocket message is received from the client or
        server. The most recent message will be flow.messages[-1]. The
        message is user-modifiable. Currently there are two types of
        messages, corresponding to the BINARY and TEXT frame types.
    """

def websocket_error(self, flow: mitmproxy.websocket.WebSocketFlow):
    """
        A websocket connection has had an error.
    """

def websocket_end(self, flow: mitmproxy.websocket.WebSocketFlow):
    """
        A websocket connection has ended.
    """

# Network lifecycle
def clientconnect(self, layer: mitmproxy.proxy.protocol.Layer):
    """
        A client has connected to mitmproxy. Note that a connection can
        correspond to multiple HTTP requests.
    """

def clientdisconnect(self, layer: mitmproxy.proxy.protocol.Layer):
    """
        A client has disconnected from mitmproxy.
    """

def serverconnect(self, conn: mitmproxy.connections.ServerConnection):
    """
        Mitmproxy has connected to a server. Note that a connection can
        correspond to multiple requests.
    """

def serverdisconnect(self, conn: mitmproxy.connections.ServerConnection):
    """
        Mitmproxy has disconnected from a server.
    """

def next_layer(self, layer: mitmproxy.proxy.protocol.Layer):
    """
        Network layers are being switched. You may change which layer will
        be used by returning a new layer object from this event.
    """

# General lifecycle
def configure(self, updated: typing.Set[str]):
    """
        Called when configuration changes. The updated argument is a
        set-like object containing the keys of all changed options. This
        event is called during startup with all options in the updated set.
    """

def done(self):
    """
        Called when the addon shuts down, either by being removed from
        the mitmproxy instance, or when mitmproxy itself shuts down. On
        shutdown, this event is called after the event loop is
        terminated, guaranteeing that it will be the final event an addon
        sees. Note that log handlers are shut down at this point, so
        calls to log functions will produce no output.
    """

def load(self, entry: mitmproxy.addonmanager.Loader):
    """
        Called when an addon is first loaded. This event receives a Loader
        object, which contains methods for adding options and commands. This
        method is where the addon configures itself.
    """

def log(self, entry: mitmproxy.log.LogEntry):
    """
        Called whenever a new log entry is created through the mitmproxy
        context. Be careful not to log from this event, which will cause an
        infinite loop!
    """

def running(self):
    """
        Called when the proxy is completely up and running. At this point,
        you can expect the proxy to be bound to a port, and all addons to be
        loaded.
    """

def update(self, flows: typing.Sequence[mitmproxy.flow.Flow]):
    """
        Update is called when one or more flow objects have been modified,
        usually from a different addon.
    """