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.. _events:
Events
=======
General
-------
.. list-table::
:widths: 40 60
:header-rows: 0
* - .. py:function:: configure(options, updated)
- Called once on startup, and whenever options change.
*options*
An ``options.Options`` object with the total current configuration
state of mitmproxy.
*updated*
A set of strings indicating which configuration options have been
updated. This contains all options when *configure* is called on
startup, and only changed options subsequently.
* - .. py:function:: done()
- Called once when the script shuts down, either because it's been
unloaded, or because the proxy itself is shutting down.
* - .. py:function:: log(entry)
- Called whenever an event log is added.
*entry*
An ``controller.LogEntry`` object - ``entry.msg`` is the log text,
and ``entry.level`` is the urgency level ("debug", "info", "warn",
"error").
* - .. py:function:: start()
- Called once on startup, before any other events. If you return a
value from this event, it will replace the current addon. This
allows you to, "boot into" an addon implemented as a class instance
from the module level.
* - .. py:function:: tick()
- Called at a regular sub-second interval as long as the addon is
executing.
Connection
----------
.. list-table::
:widths: 40 60
:header-rows: 0
* - .. py:function:: clientconnect(root_layer)
- Called when a client initiates a connection to the proxy. Note that a
connection can correspond to multiple HTTP requests.
*root_layer*
The root layer (see `mitmproxy.proxy.protocol` for an explanation what
the root layer is), provides transparent access to all attributes
of the :py:class:`~mitmproxy.proxy.RootContext`. For example,
``root_layer.client_conn.address`` gives the remote address of the
connecting client.
* - .. py:function:: clientdisconnect(root_layer)
- Called when a client disconnects from the proxy.
*root_layer*
The root layer object.
* - .. py:function:: next_layer(layer)
- Called whenever layers are switched. You may change which layer will
be used by returning a new layer object from this event.
*layer*
The next layer, as determined by mitmpmroxy.
* - .. py:function:: serverconnect(server_conn)
- Called before the proxy initiates a connection to the target server.
Note that a connection can correspond to multiple HTTP requests.
*server_conn*
A ``ServerConnection`` object. It is guaranteed to have a non-None
``address`` attribute.
* - .. py:function:: serverdisconnect(server_conn)
- Called when the proxy has closed the server connection.
*server_conn*
A ``ServerConnection`` object.
HTTP Events
-----------
.. list-table::
:widths: 40 60
:header-rows: 0
* - .. py:function:: request(flow)
- Called when a client request has been received.
*flow*
A ``models.HTTPFlow`` object. At this point, the flow is
guaranteed to have a non-None ``request`` attribute.
* - .. py:function:: requestheaders(flow)
- Called when the headers of a client request have been received, but
before the request body is read.
*flow*
A ``models.HTTPFlow`` object. At this point, the flow is
guaranteed to have a non-None ``request`` attribute.
* - .. py:function:: responseheaders(flow)
- Called when the headers of a server response have been received, but
before the response body is read.
*flow*
A ``models.HTTPFlow`` object. At this point, the flow is
guaranteed to have a non-none ``request`` and ``response``
attributes, however the response will have no content.
* - .. py:function:: response(flow)
- Called when a server response has been received.
*flow*
A ``models.HTTPFlow`` object. At this point, the flow is
guaranteed to have a non-none ``request`` and ``response``
attributes. The raw response body will be in ``response.body``,
unless response streaming has been enabled.
* - .. py:function:: error(flow)
- Called when a flow 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.
*flow*
The flow containing the error. It is guaranteed to have
non-None ``error`` attribute.
WebSocket Events
-----------------
.. list-table::
:widths: 40 60
:header-rows: 0
* - .. py:function:: websockets_handshake(flow)
- Called when a client wants to establish a WebSockets connection. The
WebSockets-specific headers can be manipulated to manipulate the
handshake. The ``flow`` object is guaranteed to have a non-None
``request`` attribute.
*flow*
The flow containing the HTTP websocket handshake request. The
object is guaranteed to have a non-None ``request`` attribute.
TCP Events
----------
These events are called only if the connection is in :ref:`TCP mode
<tcpproxy>`. So, for instance, TCP events are not called for ordinary HTTP/S
connections.
.. list-table::
:widths: 40 60
:header-rows: 0
* - .. py:function:: tcp_end(flow)
- Called when TCP streaming ends.
*flow*
A ``models.TCPFlow`` object.
* - .. py:function:: tcp_error(flow)
- Called when a TCP error occurs - e.g. the connection closing
unexpectedly.
*flow*
A ``models.TCPFlow`` object.
* - .. py:function:: tcp_message(flow)
- Called a TCP payload is received from the client or server. The
sender and receiver are identifiable. The most recent message will be
``flow.messages[-1]``. The message is user-modifiable.
*flow*
A ``models.TCPFlow`` object.
* - .. py:function:: tcp_start(flow)
- Called when TCP streaming starts.
*flow*
A ``models.TCPFlow`` object.
|
