├── .gitignore
├── .vscode
└── settings.json
├── Pipfile
├── Pipfile.lock
├── README.md
├── index.html
├── index.js
├── quic_connection_sequence.jpg
├── quic_transport_server.py
├── sequence.drawio
└── setup.cfg
/.gitignore:
--------------------------------------------------------------------------------
1 | .venv
2 | certificate.key
3 | certificate.pem
4 | *.secret
5 | .DS_Store
--------------------------------------------------------------------------------
/.vscode/settings.json:
--------------------------------------------------------------------------------
1 | {
2 | "python.pythonPath": ".venv/bin/python",
3 | "editor.formatOnSave": true,
4 | "python.linting.pycodestyleEnabled": true,
5 | "python.linting.pylintEnabled": true,
6 | "python.formatting.provider": "black",
7 | "notebook.kernelProviderAssociations": []
8 | }
9 |
--------------------------------------------------------------------------------
/Pipfile:
--------------------------------------------------------------------------------
1 | [[source]]
2 | name = "pypi"
3 | url = "https://pypi.org/simple"
4 | verify_ssl = true
5 |
6 | [dev-packages]
7 | pycodestyle = "*"
8 | black = "*"
9 | flake8 = "*"
10 | cryptography = ">=3.2"
11 |
12 | [packages]
13 | aioquic = "*"
14 |
15 | [requires]
16 | python_version = "3.8"
17 |
18 | [pipenv]
19 | allow_prereleases = true
20 |
--------------------------------------------------------------------------------
/Pipfile.lock:
--------------------------------------------------------------------------------
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431 | }
432 | }
433 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # quicTransport_mouse_point_share
2 |
3 | ## prepare
4 |
5 | - DownloadGoogle Chrome(M85~)
6 | - Get origin trial key
7 | - Register QuicTransport Trials. [All Trials](https://developers.chrome.com/origintrials/#/trials/active)
8 | - Copy token.
9 | - Use Trials Token in `index.html`.
10 | - ```
11 |
15 | ```
16 | - Generate a certificate and a private key
17 | - ```
18 | openssl req -newkey rsa:2048 -nodes -keyout certificate.key \
19 | -x509 -out certificate.pem -subj '/CN=Test Certificate' \
20 | -addext "subjectAltName = DNS:localhost"
21 | ```
22 | - Compute the fingerprint of the certificate
23 | - ```
24 | openssl x509 -pubkey -noout -in certificate.pem |
25 | openssl rsa -pubin -outform der |
26 | openssl dgst -sha256 -binary | base64
27 | ```
28 | - Copy fingerprint.
29 | - Open Google Chrome
30 | - ```
31 | open -a "Google Chrome" --args --origin-to-force-quic-on=localhost:4433 --ignore-certificate-errors-spki-list=""
32 | ```
33 |
34 | ### install
35 |
36 | `pipenv install`
37 |
38 | ## run
39 |
40 | `pipenv shell`
41 | `python quic_transport_server.py certificate.pem certificate.key`
42 | `python -m http.server 8000`
43 |
--------------------------------------------------------------------------------
/index.html:
--------------------------------------------------------------------------------
1 |
2 |
3 | QuicTransport client
4 |
5 |
6 |
10 |
11 |
12 |
13 |
67 |
68 |
69 |
--------------------------------------------------------------------------------
/index.js:
--------------------------------------------------------------------------------
1 | // "Connect" button handler.
2 | async function prepareConnection() {
3 | let url = document.getElementById("url").value;
4 | var transport = new WebTransport(url);
5 | console.log(`initializing WebTransport Instance`);
6 | transport.closed
7 | .then(() => {
8 | console.log(`The QUIC connection to ${url} closed gracefully`);
9 | })
10 | .catch((error) => {
11 | console.error(`the QUIC connection to ${url} closed due to ${error}`);
12 | });
13 | await transport.ready;
14 | console.log("startReceivingDatagram");
15 | startReceivingDatagram(transport);
16 | console.log("startReceivingStream");
17 | startReceivingStream(transport);
18 | globalThis.currentTransport = transport;
19 | globalThis.streamNumber = 1;
20 | }
21 | let prev_mouse_point_x = null;
22 | let prev_mouse_point_y = null;
23 |
24 | async function startReceivingDatagram(transport) {
25 | const reader = transport.datagramReadable.getReader();
26 | while (true) {
27 | const { value, done } = await reader.read();
28 | let result = new TextDecoder("ascii").decode(value);
29 | // result = "mouse_point=x,y"
30 | if (result.startsWith("mouse_point=")) {
31 | const index = result.indexOf("=");
32 | const [mouse_point_x, mouse_point_y] = result.slice(index + 1).split(",");
33 | const myPics = document.getElementById("myPics");
34 | const context = myPics.getContext("2d");
35 | if (prev_mouse_point_x && prev_mouse_point_y) {
36 | drawLine(
37 | context,
38 | prev_mouse_point_x,
39 | prev_mouse_point_y,
40 | mouse_point_x,
41 | mouse_point_y
42 | );
43 | }
44 | prev_mouse_point_x = mouse_point_x;
45 | prev_mouse_point_y = mouse_point_y;
46 | }
47 | if (done) {
48 | break;
49 | }
50 | }
51 | }
52 |
53 | async function startReceivingStream(transport) {
54 | let reader = transport.incomingUnidirectionalStreams.getReader();
55 | while (true) {
56 | let result = await reader.read();
57 | if (result.done) {
58 | console.log("Done accepting unidirectional streams!");
59 | return;
60 | }
61 | let stream = result.value;
62 | let number = globalThis.streamNumber++;
63 | readDataFromStream(stream, number);
64 | }
65 | }
66 |
67 | async function readDataFromStream(stream, number) {
68 | let decoder = new TextDecoderStream("utf-8");
69 | let reader = stream.readable.pipeThrough(decoder).getReader();
70 | while (true) {
71 | let result = await reader.read();
72 | if (result.done) {
73 | console.log("Stream #" + number + " closed");
74 | return;
75 | }
76 | if (result.value.startsWith("quic_transport_id=")) {
77 | const index = result.value.indexOf("=");
78 | document.getElementById("QuicTransportID").value = result.value.slice(
79 | index + 1
80 | );
81 | } else if (result.value.startsWith("joined")) {
82 | const index = result.value.indexOf("=");
83 | document.getElementById("OtherQuicTransportID").value +=
84 | result.value.slice(index + 1) + "\n";
85 | }
86 | }
87 | }
88 |
89 | async function sendMousePointDatagram() {
90 | let QuicTransportID = document.getElementById("QuicTransportID").value;
91 | QuicTransportID = new TextEncoder().encode(QuicTransportID);
92 | const transport = globalThis.currentTransport;
93 | mouse_point_share();
94 | }
95 | let isDrawing = false;
96 | function drawLine(context, x1, y1, x2, y2) {
97 | context.beginPath();
98 | context.strokeStyle = "black";
99 | context.lineWidth = 1;
100 | context.moveTo(x1, y1);
101 | context.lineTo(x2, y2);
102 | context.stroke();
103 | context.closePath();
104 | }
105 |
106 | var timeoutId;
107 | function mouse_point_share() {
108 | const myPics = document.getElementById("myPics");
109 | const context = myPics.getContext("2d");
110 | myPics.addEventListener("mousedown", (e) => {
111 | x = e.offsetX;
112 | y = e.offsetY;
113 | isDrawing = true;
114 | });
115 |
116 | myPics.addEventListener("mousemove", (e) => {
117 | if (timeoutId) return;
118 | // Prevent from very high frequency sending.
119 | timeoutId = setTimeout(function () {
120 | timeoutId = 0;
121 |
122 | if (isDrawing === true) {
123 | drawLine(context, x, y, e.offsetX, e.offsetY);
124 | x = e.offsetX;
125 | y = e.offsetY;
126 | const text = `mouse_point=${e.offsetX},${e.offsetY}`;
127 | const encoded_text = new TextEncoder().encode(text);
128 |
129 | if (globalThis.writer) {
130 | writer.write(encoded_text);
131 | } else {
132 | const ws = globalThis.currentTransport.datagramWritable;
133 | const writer = ws.getWriter();
134 | globalThis.writer = writer;
135 | writer.write(encoded_text);
136 | }
137 | }
138 | }, 10);
139 | });
140 |
141 | window.addEventListener("mouseup", (e) => {
142 | if (isDrawing === true) {
143 | drawLine(context, x, y, e.offsetX, e.offsetY);
144 | x = 0;
145 | y = 0;
146 | isDrawing = false;
147 | }
148 | });
149 | }
150 |
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/quic_connection_sequence.jpg:
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https://raw.githubusercontent.com/yuki-uchida/quicTransport_mouse_point_share/5b8106ed75a1ad76b0128950e16df57733978fab/quic_connection_sequence.jpg
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/quic_transport_server.py:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env python3
2 |
3 | # Copyright 2020 Google LLC
4 | #
5 | # Licensed under the Apache License, Version 2.0 (the "License");
6 | # you may not use this file except in compliance with the License.
7 | # You may obtain a copy of the License at
8 | #
9 | # https://www.apache.org/licenses/LICENSE-2.0
10 | #
11 | # Unless required by applicable law or agreed to in writing, software
12 | # distributed under the License is distributed on an "AS IS" BASIS,
13 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 | # See the License for the specific language governing permissions and
15 | # limitations under the License.
16 | """
17 | An example QuicTransport server based on the aioquic library.
18 | Processes incoming streams and datagrams, and
19 | replies with the ASCII-encoded length of the data sent in bytes.
20 | Example use:
21 | python3 quic_transport_server.py certificate.pem certificate.key
22 | Example use from JavaScript:
23 | let transport = new QuicTransport("quic-transport://localhost:4433/counter");
24 | await transport.ready;
25 | let stream = await transport.createBidirectionalStream();
26 | let encoder = new TextEncoder();
27 | let writer = stream.writable.getWriter();
28 | await writer.write(encoder.encode("Hello, world!"))
29 | writer.close();
30 | console.log(await new Response(stream.readable).text());
31 | This will output "13" (the length of "Hello, world!") into the console.
32 | """
33 |
34 | # ---- Dependencies ----
35 | #
36 | # This server only depends on Python standard library and aioquic. See
37 | # https://github.com/aiortc/aioquic for instructions on how to install
38 | # aioquic.
39 | #
40 | # ---- Certificates ----
41 | #
42 | # QUIC always operates using TLS, meaning that running a QuicTransport server
43 | # requires a valid TLS certificate. The easiest way to do this is to get a
44 | # certificate from a real publicly trusted CA like .
45 | # https://developers.google.com/web/fundamentals/security/encrypt-in-transit/enable-https
46 | # contains a detailed explanation of how to achieve that.
47 | #
48 | # As an alternative, Chromium can be instructed to trust a self-signed
49 | # certificate using command-line flags. Here are step-by-step instructions on
50 | # how to do that:
51 | #
52 | # 1. Generate a certificate and a private key:
53 | # openssl req -newkey rsa:2048 -nodes -keyout certificate.key \
54 | # -x509 -out certificate.pem -subj '/CN=Test Certificate' \
55 | # -addext "subjectAltName = DNS:localhost"
56 | #
57 | # 2. Compute the fingerprint of the certificate:
58 | # openssl x509 -pubkey -noout -in certificate.pem |
59 | # openssl rsa -pubin -outform der |
60 | # openssl dgst -sha256 -binary | base64
61 | # The result should be a base64-encoded blob that looks like this:
62 | # "Gi/HIwdiMcPZo2KBjnstF5kQdLI5bPrYJ8i3Vi6Ybck="
63 | #
64 | # 3. Pass a flag to Chromium indicating what host and port should be allowed
65 | # to use the self-signed certificate. For instance, if the host is
66 | # localhost, and the port is 4433, the flag would be:
67 | # --origin-to-force-quic-on=localhost:4433
68 | #
69 | # 4. Pass a flag to Chromium indicating which certificate needs to be trusted.
70 | # For the example above, that flag would be:
71 | # --ignore-certificate-errors-spki-list=Gi/HIwdiMcPZo2KBjnstF5kQdLI5bPrYJ8i3Vi6Ybck=
72 | #
73 | # See https://www.chromium.org/developers/how-tos/run-chromium-with-flags for
74 | # details on how to run Chromium with flags.
75 |
76 | # open -a "Google Chrome" --args --origin-to-force-quic-on=localhost:4433 --ignore-certificate-errors-spki-list="ks9+B0hyVs6hwrZh3alG5XBKVGbAIrSnRWPSsdYXXFw="
77 |
78 |
79 | import uuid
80 | from aioquic.tls import SessionTicket
81 | from aioquic.quic.events import (
82 | StreamDataReceived,
83 | StreamReset,
84 | DatagramFrameReceived,
85 | QuicEvent,
86 | )
87 | from aioquic.quic.connection import QuicConnection, END_STATES
88 | from aioquic.quic.configuration import QuicConfiguration
89 | from aioquic.asyncio import QuicConnectionProtocol, serve
90 | from typing import Dict, Optional
91 | from collections import defaultdict
92 | import urllib.parse
93 | import struct
94 | import os
95 | import io
96 | import asyncio
97 | import argparse
98 | import sys
99 |
100 |
101 | # Additional
102 |
103 | BIND_ADDRESS = "::1"
104 | BIND_PORT = 4433
105 |
106 | connections_list = {}
107 |
108 |
109 | def addConnections(new_connection, new_protocol) -> None:
110 | print(f"quic_transport_server addConnections{connections_list}")
111 | new_quic_transport_id = str(uuid.uuid4())
112 | # 入室情報を他の人に教えてあげる(streamで)
113 | for quic_transport_id, connection_dict in connections_list.items():
114 | response_id = connection_dict["connection"].get_next_available_stream_id(
115 | is_unidirectional=True
116 | )
117 | payload = str(f"joined={new_quic_transport_id}").encode("ascii")
118 | connection_dict["connection"].send_stream_data(response_id, payload, True)
119 | # connection_dict["protocol"].transmit()
120 |
121 | connections_list[new_quic_transport_id] = {
122 | "connection": new_connection,
123 | "protocol": new_protocol,
124 | }
125 | # 自分のQuicTransportIDを教えてあげる(streamで)
126 | response_id = new_connection.get_next_available_stream_id(is_unidirectional=True)
127 | payload = str(f"quic_transport_id={new_quic_transport_id}").encode("ascii")
128 | new_connection.send_stream_data(response_id, payload, True)
129 | new_protocol.transmit()
130 | for quic_transport_id, connection_dict in connections_list.items():
131 | # if new_connection == connection_dict["connection"]:
132 | # continue
133 | if new_quic_transport_id == quic_transport_id:
134 | continue
135 | response_id = new_connection.get_next_available_stream_id(
136 | is_unidirectional=True
137 | )
138 | payload = str(f"joined={quic_transport_id}").encode("ascii")
139 | new_connection.send_stream_data(response_id, payload, True)
140 | new_protocol.transmit()
141 | return new_quic_transport_id
142 |
143 |
144 | def removeConnections(connection, protocol) -> None:
145 | connections_list.remove({"connection": connection, "protocol": protocol})
146 | print(
147 | f"quic_transport_server removeConnections removed :{connection},{protocol}, remain: {connections_list} "
148 | )
149 | # TODO:// 抜けたことを知らせる処理をかく
150 |
151 |
152 | # QUIC uses two lowest bits of the stream ID to indicate whether the stream is:
153 | # (a) unidirectional or bidirectional,
154 | # (b) initiated by the client or by the server.
155 | # See https://tools.ietf.org/html/draft-ietf-quic-transport-27#section-2.1 for
156 | # more details.
157 |
158 | # ストリームのIDをみると、タイプがわかる
159 | # 0x0: クライアント開始&双方向
160 | # 0x1: サーバー起動&双方向
161 | # 0x2: クライアント開始&単方向
162 | # 0x3: サーバー起動&単方向
163 |
164 |
165 | def is_client_bidi_stream(stream_id):
166 | return stream_id % 4 == 0
167 |
168 |
169 | # CounterHandler implements a really simple protocol:
170 | # - For every incoming bidirectional stream, it counts bytes it receives on
171 | # that stream until the stream is closed, and then replies with that byte
172 | # count on the same stream.
173 | # - For every incoming unidirectional stream, it counts bytes it receives on
174 | # that stream until the stream is closed, and then replies with that byte
175 | # count on a new unidirectional stream.
176 | # - For every incoming datagram, it sends a datagram with the length of
177 | # datagram that was just received.
178 |
179 |
180 | class sendDataHandler:
181 | def __init__(self, protocol, connection) -> None:
182 | self.protocol = protocol
183 | self.connection = connection
184 | self.counters = defaultdict(str)
185 | self.quic_transport_id = addConnections(self.connection, self.protocol)
186 |
187 | def removeFromConnections(self) -> None:
188 | removeConnections(self.connection, self.proto)
189 |
190 | def quic_event_received(self, event: QuicEvent) -> None:
191 | if isinstance(event, DatagramFrameReceived):
192 | payload = event.data
193 | # self.connection.send_datagram_frame(payload)
194 | for quic_transport_id, connection_dict in connections_list.items():
195 | if self.quic_transport_id == quic_transport_id:
196 | continue
197 | connection_dict["connection"].send_datagram_frame(payload)
198 | connection_dict["protocol"].transmit()
199 |
200 |
201 | # QuicTransportProtocol handles the beginning of a QuicTransport connection: it
202 | # parses the incoming URL, and routes the transport events to a relevant
203 | # handler (in this example, CounterHandler). It does that by waiting for a
204 | # client indication (a special stream with protocol headers), and buffering all
205 | # unrelated events until the client indication can be fully processed.
206 |
207 |
208 | class QuicTransportProtocol(QuicConnectionProtocol):
209 | def __init__(self, *args, **kwargs) -> None:
210 | super().__init__(*args, **kwargs)
211 | self.pending_events = []
212 | self.handler = None
213 | self.client_indication_data = b""
214 |
215 | # QuicConnectionProtocolクラスのtをオーバーライドしてる
216 | # quicを経由したデータ送信は全てここを通る？少なくともclient indicationはここを経由する
217 |
218 | def quic_event_received(self, event: QuicEvent) -> None:
219 | try:
220 | print(
221 | "quic_server_transport_server#QuicTransportProtocol#quic_event_received ============================================================================================================================================"
222 | )
223 | if self.is_closing_or_closed():
224 | self.handler.removeFromConnections()
225 | return
226 | # If the handler is available, that means the connection has been
227 | # established and the client has been processed.
228 | if self.handler is not None:
229 | print(
230 | "quic_server_transport_server#QuicTransportProtocol#quic_event_received handler is already available!!"
231 | )
232 | self.handler.quic_event_received(event)
233 | return
234 | # stream_id=2 => クライアントサイド開始&単方向
235 | if isinstance(event, StreamDataReceived) and event.stream_id == 2:
236 | # print(f'event.data : {event.data}')
237 | # print(f'event.end_stream : {event.end_stream}')
238 | self.client_indication_data += event.data
239 | # streamが終了している場合には開始する処理が走る。すでに開始している場合には何もせず？
240 | if event.end_stream:
241 | # client_indicationを処理して、アクセスしてきたpathによって処理を変える。
242 | # self.handlerにCounter handlerのようなものが入っていないといけない？
243 | self.process_client_indication()
244 | # print(self.is_closing_or_closed())
245 | if self.is_closing_or_closed():
246 | return
247 | # Pass all buffered events into the handler now that it's
248 | # available.
249 | # print(self.pending_events)
250 | for e in self.pending_events:
251 | self.handler.quic_event_received(e)
252 | self.pending_events.clear()
253 | else:
254 | # We have received some application data before we have the
255 | # request URL available, which is possible since there is no
256 | # ordering guarantee on data between different QUIC streams.
257 | # Buffer the data for now.
258 | self.pending_events.append(event)
259 |
260 | except Exception as e:
261 | print(e)
262 | self.handler = None
263 | self.close()
264 | # print('quic_event_received() ended')
265 |
266 | # Client indication follows a "key-length-value" format, where key and
267 | # length are 16-bit integers. See
268 | # https://tools.ietf.org/html/draft-vvv-webtransport-quic-01#section-3.2
269 |
270 | def parse_client_indication(self, bs):
271 | while True:
272 | prefix = bs.read(4)
273 | if len(prefix) == 0:
274 | return # End-of-stream reached.
275 | if len(prefix) != 4:
276 | raise Exception("Truncated key-length tag")
277 | # Cの構造体のデータとpython bytesオブジェクトの変換でstructは使用される
278 | key, length = struct.unpack("!HH", prefix)
279 | value = bs.read(length)
280 | if len(value) != length:
281 | raise Exception("Truncated value")
282 | yield (key, value)
283 |
284 | def process_client_indication(self) -> None:
285 | """
286 | ProtocolNegotiated/HandshakeCompletedのeventが送られてきた後に送られるClient_indicationを処理する。
287 | stream_idが2(クライアント開始・単方向)で、handlerがまだ渡されていない(開始していないstreamである)場合にこの関数が呼ばれる。
288 | (その時はend_stream=Trueで、self.is_closing_or_closed()がFalseになっているはず)
289 | new QuicTransport(url);の段階で、clientの情報が送られてくる。その情報はまず`quic_event_received()` で処理される
290 | """
291 | KEY_ORIGIN = 0
292 | KEY_PATH = 1
293 | indication = dict(
294 | self.parse_client_indication(io.BytesIO(self.client_indication_data))
295 | )
296 |
297 | origin = urllib.parse.urlparse(indication[KEY_ORIGIN].decode())
298 | path = urllib.parse.urlparse(indication[KEY_PATH]).decode()
299 | # Verify that the origin host is allowed to talk to this server. This
300 | # is similar to the CORS (Cross-Origin Resource Sharing) mechanism in
301 | # HTTP. See .
302 | if origin.hostname != "localhost":
303 | raise Exception("Wrong origin specified")
304 | # Dispatch the incoming connection based on the path specified in the
305 | # URL.
306 | if path.path == "/mouse_point_share":
307 | self.handler = sendDataHandler(self, self._quic)
308 | print("handler attached!!!!!!!")
309 | else:
310 | raise Exception("Unknown path")
311 |
312 | def is_closing_or_closed(self) -> bool:
313 | return self._quic._close_pending or self._quic._state in END_STATES
314 |
315 |
316 | if __name__ == "__main__":
317 | parser = argparse.ArgumentParser()
318 | parser.add_argument("certificate")
319 | parser.add_argument("key")
320 | args = parser.parse_args()
321 | # Quicのsetting
322 | configuration = QuicConfiguration(
323 | # Identifies the protocol used. The origin trial uses the protocol
324 | # described in draft-vvv-webtransport-quic-01, hence the ALPN value.
325 | # See https://tools.ietf.org/html/draft-vvv-webtransport-quic-01#section-3.1
326 | alpn_protocols=["wq-vvv-01"],
327 | is_client=False,
328 | idle_timeout=30000,
329 | # Note that this is just an upper limit; the real maximum datagram size
330 | # available depends on the MTU of the path. See
331 | # .
332 | max_datagram_frame_size=1500,
333 | )
334 | # Quicの鍵読み込み。
335 | configuration.load_cert_chain(args.certificate, args.key)
336 |
337 | loop = asyncio.get_event_loop()
338 | # 完了するまで続ける
339 | print("running quic server")
340 | loop.run_until_complete(
341 | serve(
342 | BIND_ADDRESS,
343 | BIND_PORT,
344 | configuration=configuration,
345 | create_protocol=QuicTransportProtocol,
346 | )
347 | )
348 | loop.run_forever()
349 |
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/sequence.drawio:
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/setup.cfg:
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1 | [pycodestyle]
2 | ignore = E501
3 |
4 | [pep8]
5 | ignore = E501
--------------------------------------------------------------------------------