forked from M-Labs/artiq
client: integrate asyncio with happy eyeballs support
This commit is contained in:
parent
6f3322ea35
commit
688f3d9225
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@ -4,6 +4,7 @@ import sys
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import argparse
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import os
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import socket
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import asyncio
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import ssl
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import io
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import zipfile
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@ -41,22 +42,27 @@ def zip_unarchive(data, directory):
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class Client:
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def __init__(self, server, port, cafile):
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self.server = server
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self.port = port
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self.ssl_context = ssl.create_default_context(cafile=cafile)
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self.raw_socket = socket.create_connection((server, port))
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self.init_websocket(server)
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try:
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self.socket = self.ssl_context.wrap_socket(self.raw_socket, server_hostname=server)
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except:
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self.raw_socket.close()
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raise
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self.fsocket = self.socket.makefile("rwb")
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self.reader = None
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self.writer = None
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def init_websocket(self, server):
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self.raw_socket.sendall("GET / HTTP/1.1\r\nHost: {}\r\nConnection: Upgrade\r\nUpgrade: websocket\r\n\r\n"
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.format(server).encode())
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async def connect(self):
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self.reader, self.writer = await asyncio.open_connection(
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host=self.server,
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port=self.port,
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happy_eyeballs_delay=0.25
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)
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await self.init_websocket()
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await self.writer.start_tls(self.ssl_context)
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async def init_websocket(self):
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self.writer.write("GET / HTTP/1.1\r\nHost: {}\r\nConnection: Upgrade\r\nUpgrade: websocket\r\n\r\n"
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.format(self.server).encode())
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crlf_count = 0
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while crlf_count < 4:
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char = self.raw_socket.recv(1)
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char = await self.reader.read(1)
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if not char:
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return ValueError("Connection closed during WebSocket initialization")
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if char == b"\r" or char == b"\n":
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@ -64,30 +70,30 @@ class Client:
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else:
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crlf_count = 0
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def close(self):
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self.socket.close()
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self.raw_socket.close()
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async def close(self):
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if self.writer:
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await self.writer.close()
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await self.writer.wait_closed()
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def send_command(self, *command):
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self.fsocket.write((" ".join(command) + "\n").encode())
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self.fsocket.flush()
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async def send_command(self, *command):
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await self.writer.write((" ".join(command) + "\n").encode())
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def read_line(self):
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return self.fsocket.readline().decode("ascii")
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async def read_line(self):
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return (await self.reader.readline()).decode("ascii")
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def read_reply(self):
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return self.fsocket.readline().decode("ascii").split()
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async def read_reply(self):
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return (await self.reader.readline()).decode("ascii").split()
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def read_json(self):
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return json.loads(self.fsocket.readline().decode("ascii"))
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async def read_json(self):
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return json.loads(await self.reader.readline().decode("ascii"))
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def login(self, username, password):
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self.send_command("LOGIN", username, password)
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return self.read_reply() == ["HELLO"]
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async def login(self, username, password):
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await self.send_command("LOGIN", username, password)
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return await self.read_reply() == ["HELLO"]
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def build(self, major_ver, rev, variant, log, experimental_features):
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async def build(self, major_ver, rev, variant, log, experimental_features):
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if not variant:
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variant = self.get_single_variant(error_msg="User can build more than 1 variant - need to specify")
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variant = await self.get_single_variant(error_msg="User can build more than 1 variant - need to specify")
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print("Building variant: {}".format(variant))
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build_args = (
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rev,
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@ -96,19 +102,19 @@ class Client:
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major_ver,
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*experimental_features,
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)
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self.send_command("BUILD", *build_args)
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reply = self.read_reply()[0]
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await self.send_command("BUILD", *build_args)
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reply = (await self.read_reply())[0]
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if reply != "BUILDING":
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return reply, None
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print("Build in progress. This may take 10-15 minutes.")
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if log:
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line = self.read_line()
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line = await self.read_line()
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while line != "" and line.startswith("LOG"):
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print(line[4:], end="")
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line = self.read_line()
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line = await self.read_line()
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reply, status = line.split()
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else:
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reply, status = self.read_reply()
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reply, status = await self.read_reply()
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if reply != "DONE":
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raise ValueError("Unexpected server reply: expected 'DONE', got '{}'".format(reply))
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if status != "done":
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@ -129,19 +135,19 @@ class Client:
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print("Download completed.")
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return "OK", contents
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def passwd(self, password):
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self.send_command("PASSWD", password)
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return self.read_reply() == ["OK"]
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async def passwd(self, password):
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await self.send_command("PASSWD", password)
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return (await self.read_reply()) == ["OK"]
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def get_variants(self):
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self.send_command("GET_VARIANTS")
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reply = self.read_reply()[0]
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async def get_variants(self):
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await self.send_command("GET_VARIANTS")
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reply = (await self.read_reply())[0]
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if reply != "OK":
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raise ValueError("Unexpected server reply: expected 'OK', got '{}'".format(reply))
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return self.read_json()
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return await self.read_json()
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def get_single_variant(self, error_msg):
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variants = self.get_variants()
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async def get_single_variant(self, error_msg):
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variants = await self.get_variants()
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if len(variants) != 1:
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print(error_msg)
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table = PrettyTable()
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@ -152,17 +158,17 @@ class Client:
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sys.exit(1)
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return variants[0][0]
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def get_json(self, variant):
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self.send_command("GET_JSON", variant)
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reply = self.read_reply()
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async def get_json(self, variant):
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await self.send_command("GET_JSON", variant)
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reply = await self.read_reply()
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if reply[0] != "OK":
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return reply[0], None
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length = int(reply[1])
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json_str = self.fsocket.read(length).decode("ascii")
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json_str = (await self.reader.read(length)).decode("ascii")
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return "OK", json_str
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def main():
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async def main_async():
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parser = argparse.ArgumentParser()
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parser.add_argument("--server", default="afws.m-labs.hk", help="server to connect to (default: %(default)s)")
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parser.add_argument("--port", default=80, type=int, help="port to connect to (default: %(default)d)")
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@ -186,6 +192,7 @@ def main():
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args = parser.parse_args()
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client = Client(args.server, args.port, args.cert)
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await client.connect()
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try:
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if args.action == "build":
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# do this before user enters password so errors are reported without unnecessary user action
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@ -216,7 +223,7 @@ def main():
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password = getpass("Current password: ")
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else:
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password = getpass()
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if not client.login(args.username, password):
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if not await client.login(args.username, password):
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print("Login failed")
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sys.exit(1)
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@ -229,12 +236,12 @@ def main():
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print("Passwords do not match")
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password = getpass("New password: ")
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password_confirm = getpass("New password (again): ")
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if not client.passwd(password):
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if not await client.passwd(password):
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print("Failed to change password")
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sys.exit(1)
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elif args.action == "build":
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# build dir and version variables set up above
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result, contents = client.build(major_ver, rev, args.variant, args.log, args.experimental)
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result, contents = await client.build(major_ver, rev, args.variant, args.log, args.experimental)
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if result != "OK":
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if result == "UNAUTHORIZED":
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print("You are not authorized to build this variant. Your firmware subscription may have expired. Contact helpdesk\x40m-labs.hk.")
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@ -245,7 +252,7 @@ def main():
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sys.exit(1)
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zip_unarchive(contents, args.directory)
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elif args.action == "get_variants":
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variants = client.get_variants()
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variants = await client.get_variants()
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table = PrettyTable()
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table.field_names = ["Variant", "Expiry date"]
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for variant in variants:
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@ -255,8 +262,8 @@ def main():
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if args.variant:
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variant = args.variant
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else:
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variant = client.get_single_variant(error_msg="User can get JSON of more than 1 variant - need to specify")
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result, json_str = client.get_json(variant)
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variant = await client.get_single_variant(error_msg="User can get JSON of more than 1 variant - need to specify")
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result, json_str = await client.get_json(variant)
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if result != "OK":
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if result == "UNAUTHORIZED":
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print(f"You are not authorized to get JSON of variant {variant}. Your firmware subscription may have expired. Contact helpdesk\x40m-labs.hk.")
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@ -272,8 +279,10 @@ def main():
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else:
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raise ValueError
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finally:
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client.close()
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await client.close()
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def main():
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asyncio.run(main_async())
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if __name__ == "__main__":
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main()
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