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Qt backend basically works

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Kovid Goyal 2024-08-14 11:34:04 +05:30
parent 91b6a64777
commit 8c0bb15478
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1 changed files with 21 additions and 17 deletions
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34
src/calibre/scraper/qt_backend.py
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@ -8,7 +8,7 @@ import sys
from contextlib import suppress from contextlib import suppress
from threading import Thread from threading import Thread
from time import monotonic from time import monotonic
from typing import TypedDict from typing import Any, TypedDict
from qt.core import ( from qt.core import (
QApplication, QApplication,
@ -132,9 +132,9 @@ class FetchBackend(QNetworkAccessManager):
def __init__(self, output_dir: str = '', cache_name: str = '', parent: QObject = None, user_agent: str = '') -> None: def __init__(self, output_dir: str = '', cache_name: str = '', parent: QObject = None, user_agent: str = '') -> None:
super().__init__(parent) super().__init__(parent)
self.cookie_jar = CookieJar(self) self.cookie_jar = CookieJar(self)
self.setNetworkCookieJar(self.cookie_jar) self.setCookieJar(self.cookie_jar)
self.user_agent = user_agent or random_common_chrome_user_agent() self.user_agent = user_agent or random_common_chrome_user_agent()
self.setTransferTimeout(default_timeout) self.setTransferTimeout(int(default_timeout * 1000))
self.output_dir = output_dir or os.getcwd() self.output_dir = output_dir or os.getcwd()
sys.excepthook = self.excepthook sys.excepthook = self.excepthook
self.request_download.connect(self.download, type=Qt.ConnectionType.QueuedConnection) self.request_download.connect(self.download, type=Qt.ConnectionType.QueuedConnection)
@ -243,15 +243,7 @@ class FetchBackend(QNetworkAccessManager):
self.cookie_jar.add_cookie(c) self.cookie_jar.add_cookie(c)
def read_commands(backend: FetchBackend, tdir: str) -> None: def request_from_cmd(cmd: dict[str, Any], filename: str) -> Request:
file_counter = 0
error_msg = ''
try:
for line in sys.stdin:
cmd = json.loads(line)
ac = cmd['action']
if ac == 'download':
file_counter += 1
timeout = cmd.get('timeout') timeout = cmd.get('timeout')
if timeout is None: if timeout is None:
timeout = default_timeout timeout = default_timeout
@ -261,10 +253,22 @@ def read_commands(backend: FetchBackend, tdir: str) -> None:
'headers': cmd.get('headers') or [], 'headers': cmd.get('headers') or [],
'data_path': cmd.get('data_path') or '', 'data_path': cmd.get('data_path') or '',
'method': cmd.get('method') or 'get', 'method': cmd.get('method') or 'get',
'filename': os.path.join(tdir, str(file_counter)), 'filename': filename,
'timeout': timeout, 'timeout': timeout,
} }
backend.request_download.emit(req) return req
def read_commands(backend: FetchBackend, tdir: str) -> None:
file_counter = 0
error_msg = ''
try:
for line in sys.stdin:
cmd = json.loads(line)
ac = cmd['action']
if ac == 'download':
file_counter += 1
backend.request_download.emit(request_from_cmd(cmd, str(file_counter)))
elif ac == 'set_cookies': elif ac == 'set_cookies':
backend.set_cookies.emit(cmd['cookies']) backend.set_cookies.emit(cmd['cookies'])
elif ac == 'set_user_agent': elif ac == 'set_user_agent':
@ -308,7 +312,7 @@ def develop(url: str) -> None:
backend.download_finished.connect(download_finished) backend.download_finished.connect(download_finished)
for i, url in enumerate(sys.argv[1:]): for i, url in enumerate(sys.argv[1:]):
backend.download(url, f'test-output-{i}') backend.download(request_from_cmd({'url':url}, f'test-output-{i}'))
num_left += 1 num_left += 1
app.exec() app.exec()