http.py 文件源码

def getPage(url, contextFactory=None, *args, **kwargs):
    log.msg('Method: %s' % kwargs.get('method', 'GET'))
    log.msg('URI: %s' % url)
    try:
        log.msg('Headers: %r' % kwargs['headers'])
    except KeyError:
        pass
    try:
        log.msg('Payload: %r' % kwargs['postdata'])
    except KeyError:
        pass
    scheme, host, port, path = client._parse(url)
    factory = HTTPClientFactory(url, *args, **kwargs)
    if scheme == 'https':
        from twisted.internet import ssl
        if contextFactory is None:
            contextFactory = ssl.ClientContextFactory()
        reactor.connectSSL(host, port, factory, contextFactory)
    else:
        reactor.connectTCP(host, port, factory)

    def _eb(failure):
        log.msg('Failed.')
        log.msg(failure)
        return failure

    return factory.deferred.addCallback(_checkCacheControl).addErrback(_eb)