mirror of https://github.com/scrapy/scrapy.git
64 lines
1.8 KiB
Python
64 lines
1.8 KiB
Python
"""
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Scrapy Telnet Console extension
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See documentation in docs/topics/telnetconsole.rst
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"""
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import pprint
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from twisted.conch import manhole, telnet
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from twisted.conch.insults import insults
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from twisted.internet import reactor, protocol
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from scrapy.extension import extensions
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from scrapy.core.exceptions import NotConfigured
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from scrapy.core.manager import scrapymanager
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from scrapy.spider import spiders
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from scrapy.stats import stats
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from scrapy.utils.signal import send_catch_log
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from scrapy.utils.trackref import print_live_refs
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from scrapy.utils.engine import print_engine_status
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from scrapy.conf import settings
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try:
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import guppy
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hpy = guppy.hpy()
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except ImportError:
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hpy = None
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# signal to update telnet variables
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# args: telnet_vars
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update_telnet_vars = object()
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class TelnetConsole(protocol.ServerFactory):
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def __init__(self):
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if not settings.getbool('TELNETCONSOLE_ENABLED'):
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raise NotConfigured
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self.noisy = False
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port = settings.getint('TELNETCONSOLE_PORT')
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reactor.callWhenRunning(reactor.listenTCP, port, self)
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def protocol(self):
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telnet_vars = self._get_telnet_vars()
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return telnet.TelnetTransport(telnet.TelnetBootstrapProtocol,
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insults.ServerProtocol, manhole.Manhole, telnet_vars)
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def _get_telnet_vars(self):
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# Note: if you add entries here also update topics/telnetconsole.rst
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telnet_vars = {
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'engine': scrapymanager.engine,
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'manager': scrapymanager,
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'extensions': extensions,
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'stats': stats,
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'spiders': spiders,
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'settings': settings,
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'est': print_engine_status,
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'p': pprint.pprint,
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'prefs': print_live_refs,
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'hpy': hpy,
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}
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send_catch_log(update_telnet_vars, telnet_vars=telnet_vars)
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return telnet_vars
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