def __init__(self, settings):
super(BotSpiderManager, self).__init__(settings)
# Backward compatibility
if isinstance(settings, list):
from scrapy.conf import settings
descriptor = Descriptor.from_settings(settings)
for spider_data in descriptor.list():
domain = get_domain(spider_data['url'])
base_cls = self._spiders[spider_data['engine']]
cls_name = sanitize_module_name(domain).encode('utf-8')
spider_name = self.spider_name(spider_data['engine'],
domain)
kwargs = {
'name': spider_name,
'start_urls': [spider_data['url']],
'allowed_domains': [domain],
}
kwargs.update(spider_data.get('args', {}))
spider_cls = self._create_spider_cls(base_cls, cls_name, kwargs)
self._spiders[spider_name] = spider_cls
def run(self, args, opts):
log.start()
if len(args) != 1:
raise UsageError()
url = args[0]
log.msg('Detecting: %s' % url)
detector = Detector()
try:
result = detector.detect(url)
except MultipleSitesDetected as e:
log.msg('Multiple sites detected: %s' % e.results)
return
if not result:
log.msg('Site not detected: %s', level=log.ERROR)
return
engine, features = result
spider = self._find_spider(engine, features)
if not spider:
log.msg('Site detected as "%s %s", but no spider with this name '
'has been found' % (engine, features), level=log.ERROR)
return
log.msg('Site detected: %s %s' % (engine, features))
if opts.add:
descriptor = Descriptor.from_settings(self.crawler_process.settings)
descriptor.add(url, engine, {'features': features})
descriptor.save()
log.msg('Saved site to %s' % descriptor.path)
elif not opts.detect_only:
opts.spargs.update({
'start_urls': [url],
'allowed_domains': [get_domain(url)],
'features': features,
})
self.crawler_process.crawl(spider.name, **opts.spargs)
self.crawler_process.start()
