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update: pivot to http protocol

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This commit is contained in:
break27
2026-05-21 18:01:03 +08:00
parent 21982afd64
commit beacca6bb0
8 changed files with 171 additions and 166 deletions
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8
pyproject.toml
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@@ -4,16 +4,12 @@ build-backend = "setuptools.build_meta"
[project]
name = "common"
description = "Reusable code stubs"
version = "0.1.14"
description = "Commonly reusable code"
version = "0.1.15"
requires-python = ">=3.13"
authors = [
{ name="BreakerBear", email="breakerbear@autistic.men" },
]
dependencies = [
"trio",
"trio-websocket",
]
[project.optional-dependencies]
selenium = ["selenium"]

1
src/common/actionflow.py
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@@ -31,6 +31,7 @@ class ActionFlow:
self.on[index] = bool(self.actions[index].prepare())
def react(self):
while any(self.on):
for index in self.indices.values():
if (self.on[index]):
self.on[index] = None

27
src/common/jsonrpc2/__init__.py
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@@ -1,30 +1,11 @@
from common.jsonrpc2.server import (
Request,
Response,
Error,
History,
Options,
define,
remove,
run,
RequestHandler,
ServiceProvider,
)
def prelude() -> str:
with open(__file__.replace('__init__.py', 'client.js'), 'r') as file:
from common.jsonrpc2.server import server
assert server is not None
endpoint = server.listeners[0]
url = f'ws://{endpoint.address}:{endpoint.port}'
return file.read() % url
__all__ = [
'Request',
'Response',
'Error',
'History',
'Options',
'define',
'remove',
'run',
'prelude',
'RequestHandler',
'ServiceProvider',
]

62
src/common/jsonrpc2/client.js
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@@ -1,55 +1,45 @@
const CONNECTION = new WebSocket("%s");
const QUEUE = new Array();
export default new class extends Function {
constructor() {
super('...args', 'return this.get(...args)');
return this.bind(this);
}
CONNECTION.addEventListener('message', (e) => {
let message = JSON.parse(e.data);
let index = QUEUE.findIndex(item => item.id === message.id);
all(selectors) { return document.querySelectorAll(selectors) }
get(selectors) { return document.querySelector(selectors) }
set(selectors, event, listener) { return this.get(selectors).addEventListener(event, listener) }
};
if (index === -1) throw Error('Invalid message ID: ' + message.id);
let promise = QUEUE.splice(index, 1)[0];
if (message.error) promise.reject(message.error);
else promise.resolve(message.result);
});
while (CONNECTION.readyState !== CONNECTION.OPEN) {
await new Promise(resolve => setTimeout(resolve, 200));
}
const LogRecord = {
format: (record) => {
let ms = record.created * 1000 - new Date().getTimezoneOffset() * 60000;
export const LogRecord = {
format: (log) => {
let ms = (log.created - new Date().getTimezoneOffset() * 60) * 1000;
let date = new Date(ms).toISOString().slice(0, 16).replace("T", " ");
let line = `[${date}] [${record.levelname}] [${record.name}] ${record.msg}`;
let message = [line, record.exc_text, record.stack_info].filter(Boolean).join('\n');
let line = `[${date}] [${log.levelname}] [${log.name}] ${log.msg}`;
let message = [line, log.exc_text, log.stack_info].filter(Boolean).join('\n');
return message;
},
};
const RemoteProceduralCall = {
export const Rpc2 = {
notify: async (method, ...args) => {
let request = { method };
if (args.length > 0) request.params = args;
let data = JSON.stringify(request);
CONNECTION.send(data);
let body = JSON.stringify(request);
await fetch('/', { method: 'POST', body });
},
invoke: async (method, ...args) => {
let id = Math.floor(Math.random() * 1000000000);
let request = { method, id };
if (args.length > 0) request.params = args;
let data = JSON.stringify(request);
CONNECTION.send(data);
let body = JSON.stringify(request);
let response = await fetch('/', { method: 'POST', body });
let json = await response.json();
let [resolve, reject] = [null, null];
let promise = new Promise((a, b) => { resolve = a; reject = b; });
QUEUE.push({ resolve, reject, id });
let result = await promise;
return result;
if (json.error) {
let message = `(${json.error.code}) ${json.error.message}`;
if (json.error.data) message += `: ${json.error.data}`;
throw new Error(message);
}
return json.result;
},
};
window.LogRecord = LogRecord;
window.Rpc2 = RemoteProceduralCall;
main(...arguments); // user-defined code

178
src/common/jsonrpc2/server.py
View File

@@ -1,53 +1,50 @@
import json
import logging
import trio
import trio_websocket as ws
import dataclasses
from enum import Enum
from http.server import ThreadingHTTPServer, BaseHTTPRequestHandler
from typing import Self, Callable, Any
from itertools import repeat
from threading import Thread
handlers: dict[str, Callable] = dict()
connection, server = None, None
class Request[T]:
def __init__(self, method: str, params = None, id = None):
if not isinstance(method, str): raise TypeError()
if not isinstance(id, (str, int)) and id is not None: raise TypeError()
if not isinstance(method, str): raise TypeError('method')
if not isinstance(id, (str, int)) and id is not None: raise TypeError('id')
self.id = id
self.method = method
self.params = params
class ParamsError(Exception):
pass
class ParamsError(Exception): pass
class NotFound(Exception): pass
class Invalid(Exception): pass
@classmethod
def load(cls, raw: bytes) -> Self:
data = json.loads(raw)
return cls(**data)
def load(cls, data: str) -> Self:
result = json.loads(data)
return cls(**result)
def fulfill(self) -> T:
def handle(self, handlers: dict[str, Any]) -> T:
args = self.params
handler: Callable[..., T] = handlers[self.method]
handler: Callable[..., T] = handlers.get(self.method)
if handler is None: raise self.NotFound(self.method)
argcount = handler.__code__.co_argcount
varnames = handler.__code__.co_varnames
argnames = handler.__code__.co_varnames[:argcount]
if self.params is None:
if argcount > 0: raise self.ParamsError(None)
if argcount > 0: raise self.ParamsError('Too less')
return handler()
if isinstance(args, list):
if len(args) != argcount: raise self.ParamsError(args)
return handler(*args)
if isinstance(args, dict):
if args.keys() != set(varnames): raise self.ParamsError(args)
if args.keys() != set(argnames): raise self.ParamsError(args)
return handler(**args)
raise TypeError(repr(args))
raise self.Invalid('Arguments unacceptable')
class Response[T]:
def __init__(self, id: str|int, inner: T):
def __init__(self, id: str|int|None, inner: T):
self.id = id
self.inner = inner
@@ -80,7 +77,7 @@ class Error:
result['code'] = self.code.value
result['message'] = self.message()
if self.data is not None:
result['data'] = self.data
result['data'] = str(self.data)
return result
class History(logging.Handler):
@@ -100,65 +97,98 @@ class History(logging.Handler):
self.records.clear()
return copy
class Options:
def __init__(self):
self.listen = '127.0.0.1'
self.port = 0
self.max_message_size = 125_000_000
class Server(ThreadingHTTPServer):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.encoding: str
self.handlers = dict()
async def handler(request: ws.WebSocketRequest):
global connection
logger = logging.getLogger('jsonrpc2')
websocket = await request.accept()
class RequestHandler(BaseHTTPRequestHandler):
server: Server
protocol_version = 'HTTP/1.1'
if connection is None:
connection = websocket
else:
await websocket.aclose(code=1000, reason="Engaged")
return
def log_message(self, format, *args):
pass
for mid, res, err, exc in repeat((None, None, None, None)):
def do_GET(self):
try:
message = await connection.get_message()
inbound = Request.load(message)
mid = inbound.id
res = inbound.fulfill()
except json.decoder.JSONDecodeError as e:
err = Error(Error.Code.PARSE_ERROR)
exc = e
except Request.ParamsError as e:
err = Error(Error.Code.INVALID_PARAMS)
exc = e
except TypeError as e:
err = Error(Error.Code.INVALID_REQUEST)
exc = e
except KeyError as e:
err = Error(Error.Code.METHOD_NOT_FOUND)
err.data = str(e).strip("'")
exc = e
except ws.ConnectionClosed as e:
logger.critical('Going away', exc_info=e)
return
match self.headers.get('Sec-Fetch-Dest'):
case 'script':
file, mime = __file__[:__file__.rfind('server.py')] + 'client.js', 'text/javascript'
case _:
file, mime = './index.html', 'text/html'
response = open(file, mode='rb').read()
self.send_response(200)
self.send_header('Content-Type', '%s; charset=%s' % (mime, self.server.encoding))
except FileNotFoundError:
response = b'File not found'
self.send_response(404)
except Exception as e:
err = Error(Error.Code.INTERNAL_ERROR)
exc = e
response = b'Internal error: %b' % str(e).encode(self.server.encoding)
self.send_response(500)
if err is not None: logger.error(err.message(), exc_info=exc)
if mid is not None: await connection.send_message(str(Response(mid, err or res)))
self.send_header('Content-Length', str(len(response)))
self.end_headers()
self.wfile.write(response)
async def backend(options: Options):
global server
listeners = await trio.open_tcp_listeners(port=options.port, host=options.listen)
server = ws.WebSocketServer(handler, listeners, max_message_size=options.max_message_size)
await server.run()
def do_POST(self, request=None):
try:
size = int(self.headers.get('Content-Length', '0'))
data = self.rfile.read(size)
request = Request.load(data)
message = request.handle(self.server.handlers)
except json.JSONDecodeError as e:
message = Error(Error.Code.PARSE_ERROR, e)
except Request.ParamsError as e:
message = Error(Error.Code.INVALID_PARAMS, e)
except Request.Invalid as e:
message = Error(Error.Code.INVALID_REQUEST, e)
except Request.NotFound as e:
message = Error(Error.Code.METHOD_NOT_FOUND, e)
except Exception as e:
message = Error(Error.Code.INTERNAL_ERROR, e)
def define(method: str, handler: Callable[..., Any]):
if method in handlers: raise KeyError(method)
handlers[method] = handler
response = Response(request.id if request is not None else None, message)
buffer = bytes(str(response), encoding=self.server.encoding)
self.send_response(200)
self.send_header('Content-Length', str(len(buffer)))
self.end_headers()
self.wfile.write(buffer)
def remove(method: str) -> Callable[..., Any]:
return handlers.pop(method)
class ServiceProvider:
def __init__(self, options):
self.options = dataclasses.asdict(options)
self.server = Server((self.options['host'], self.options['port']), self.options['handler'])
self.server.encoding = self.options['encoding']
def run(options: Options):
thread = Thread(target=lambda: trio.run(backend, options), daemon=True)
@classmethod
def default(cls):
import sys, _thread as t
logger = logging.getLogger()
history = History()
logger.addHandler(history)
opts = cls.Options()
self = cls(opts)
self.set('history', lambda: history.truncate())
self.set('exit', lambda: t.interrupt_main() or sys.exit(0))
return self
@dataclasses.dataclass
class Options:
host : str = '127.0.0.1'
port : int = 0
handler : type = RequestHandler
encoding : str = 'UTF-8'
interval : float = 0.2
def set(self, method: str, handler: Callable[..., Any]):
if method in self.server.handlers: raise KeyError(method)
self.server.handlers[method] = handler
def pop(self, method: str) -> Callable[..., Any]:
return self.server.handlers.pop(method)
def run(self) -> str:
thread = Thread(target=lambda: self.server.serve_forever(self.options['interval']), daemon=True)
thread.start()
return 'http://%s:%d' % self.server.server_address

0
src/common/utils/timer.py → src/common/timer.py
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10
src/common/utils/__init__.py
View File

@@ -1,8 +1,12 @@
from common.utils.timer import Timer
from common.utils.selenium import until, sleep, locate, click, setup
from common.utils.selenium import (
until,
sleep,
locate,
click,
setup,
)
__all__ = [
'Timer',
'until',
'sleep',
'locate',

39
src/common/utils/selenium.py
View File

@@ -7,24 +7,25 @@ from selenium.webdriver.remote.webelement import WebElement
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait
from selenium.common.exceptions import StaleElementReferenceException, TimeoutException
from selenium.common.exceptions import StaleElementReferenceException, NoAlertPresentException, TimeoutException
driver: WebDriver|None = None
attempts, timeout, interval, identity = int(), float(), float(), None
identity, parameters = None, dict()
def until(condition: typing.Callable[[WebDriver], bool], watch=True):
try:
WebDriverWait(driver, timeout).until(condition)
WebDriverWait(driver, parameters['timeout']).until(condition)
except (TimeoutException, StaleElementReferenceException):
pass
if watch: WebDriverWait(driver, timeout).until_not(condition)
if watch: WebDriverWait(driver, parameters['timeout']).until_not(condition)
def sleep(seconds: float):
from common.jsonrpc2.server import connection
assert connection is not None and connection.closed is None
try: driver.switch_to.alert
except NoAlertPresentException: pass
except: raise KeyboardInterrupt()
try: WebDriverWait(driver, seconds, seconds).until(lambda _: False)
except: pass
except TimeoutException: pass
def locate(selector: str, wait=True, condition=True) -> WebElement:
while True:
@@ -33,12 +34,12 @@ def locate(selector: str, wait=True, condition=True) -> WebElement:
if not wait: return driver.find_element(*locator)
presence = EC.presence_of_element_located(locator)
element = WebDriverWait(driver, timeout).until(presence, 'Timeout')
element = WebDriverWait(driver, parameters['timeout']).until(presence, 'Timeout')
driver.execute_script("arguments[0].scrollIntoView({ block: 'center', inline: 'nearest' });", element)
if condition is not None and condition != False:
predicate = condition if callable(condition) else EC.visibility_of_element_located
element = WebDriverWait(driver, timeout).until(predicate(locator), 'Timeout')
element = WebDriverWait(driver, parameters['timeout']).until(predicate(locator), 'Timeout')
return element
except StaleElementReferenceException:
@@ -49,11 +50,12 @@ def click(selector: str|WebElement, wait=True, condition=False):
error = False
element = locate(selector, wait, predicate) if isinstance(selector, str) else selector
counter = lambda: int(element.get_attribute(identity) or 0)
counter = lambda: int(element.get_attribute(identity) or '0')
value = counter()
driver.execute_script("arguments[0].addEventListener('click', () => arguments[0].setAttribute(arguments[1], arguments[2] + 1));", element, identity, value)
driver.execute_script("window.__%s__ = () => { arguments[0].setAttribute('%s', arguments[1] + 1) }" % ((identity,) * 2), element, value)
driver.execute_script("arguments[0].addEventListener('click', __%s__);" % identity, element)
for _ in range(attempts):
for _ in range(parameters['attempts']):
try:
if not error: element.click()
else: driver.execute_script("arguments[0].click();", element)
@@ -63,15 +65,16 @@ def click(selector: str|WebElement, wait=True, condition=False):
error = True
continue
try:
WebDriverWait(driver, interval).until(lambda _: counter() > value)
WebDriverWait(driver, parameters['interval']).until(lambda _: counter() > value)
break
except TimeoutException: continue
except: break
def setup(a: WebDriver, b: int, c: float, d: float):
global identity, driver, attempts, timeout, interval
try: driver.execute_script("arguments[0].removeEventListener('click', __%s__);" % identity, element)
except: pass
def setup(a: WebDriver, b: dict):
global identity, driver
identity = ''.join(random.choices(string.ascii_uppercase + string.digits, k=8))
driver = a
attempts = b
timeout = c
interval = d
parameters.update(b)