def search(self):
     if getattr(self, "search_provider", None):
         if type(self.search_provider) == str:
             self.search_provider = select_provider(
                 self.config, self.pkg_resources_working_set, "r2.provider.search", self.search_provider
             )
         return self.search_provider
     return None

    def setup(self):
        self.queues = queues.declare_queues(self)

        ################# PROVIDERS
        self.media_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "r2.provider.media",
            self.media_provider,
        )
        self.startup_timer.intermediate("providers")

        ################# CONFIGURATION
        # AMQP is required
        if not self.amqp_host:
            raise ValueError("amqp_host not set in the .ini")

        if not self.cassandra_seeds:
            raise ValueError("cassandra_seeds not set in the .ini")

        # heavy load mode is read only mode with a different infobar
        if self.heavy_load_mode:
            self.read_only_mode = True

        origin_prefix = self.domain_prefix + "." if self.domain_prefix else ""
        self.origin = "http://" + origin_prefix + self.domain

        self.trusted_domains = set([self.domain])
        if self.https_endpoint:
            https_url = urlparse(self.https_endpoint)
            self.trusted_domains.add(https_url.hostname)

        # load the unique hashed names of files under static
        static_files = os.path.join(self.paths.get('static_files'), 'static')
        names_file_path = os.path.join(static_files, 'names.json')
        if os.path.exists(names_file_path):
            with open(names_file_path) as handle:
                self.static_names = json.load(handle)
        else:
            self.static_names = {}

        # make python warnings go through the logging system
        logging.captureWarnings(capture=True)

        log = logging.getLogger('reddit')

        # when we're a script (paster run) just set up super simple logging
        if self.running_as_script:
            log.setLevel(logging.INFO)
            log.addHandler(logging.StreamHandler())

        # if in debug mode, override the logging level to DEBUG
        if self.debug:
            log.setLevel(logging.DEBUG)

        # attempt to figure out which pool we're in and add that to the
        # LogRecords.
        try:
            with open("/etc/ec2_asg", "r") as f:
                pool = f.read().strip()
            # clean up the pool name since we're putting stuff after "-"
            pool = pool.partition("-")[0]
        except IOError:
            pool = "reddit-app"
        self.log = logging.LoggerAdapter(log, {"pool": pool})

        # set locations
        self.locations = {}

        if not self.media_domain:
            self.media_domain = self.domain
        if self.media_domain == self.domain:
            print >> sys.stderr, ("Warning: g.media_domain == g.domain. " +
                   "This may give untrusted content access to user cookies")

        for arg in sys.argv:
            tokens = arg.split("=")
            if len(tokens) == 2:
                k, v = tokens
                self.log.debug("Overriding g.%s to %s" % (k, v))
                setattr(self, k, v)

        self.reddit_host = socket.gethostname()
        self.reddit_pid  = os.getpid()

        if hasattr(signal, 'SIGUSR1'):
            # not all platforms have user signals
            signal.signal(signal.SIGUSR1, thread_dump)

        locale.setlocale(locale.LC_ALL, self.locale)

        # Pre-calculate ratelimit values
        self.RL_RESET_SECONDS = self.config["RL_RESET_MINUTES"] * 60
        self.RL_MAX_REQS = int(self.config["RL_AVG_REQ_PER_SEC"] *
                                      self.RL_RESET_SECONDS)

        self.RL_OAUTH_RESET_SECONDS = self.config["RL_OAUTH_RESET_MINUTES"] * 60
        self.RL_OAUTH_MAX_REQS = int(self.config["RL_OAUTH_AVG_REQ_PER_SEC"] *
                                     self.RL_OAUTH_RESET_SECONDS)

#.........这里部分代码省略.........

    def setup(self):
        self.env = ''
        if (
            # handle direct invocation of "nosetests"
            "test" in sys.argv[0] or
            # handle "setup.py test" and all permutations thereof.
            "setup.py" in sys.argv[0] and "test" in sys.argv[1:]
        ):
            self.env = "unit_test"

        self.queues = queues.declare_queues(self)

        self.extension_subdomains = dict(
            simple="mobile",
            i="compact",
            api="api",
            rss="rss",
            xml="xml",
            json="json",
        )

        ################# PROVIDERS
        self.auth_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "r2.provider.auth",
            self.authentication_provider,
        )
        self.media_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "r2.provider.media",
            self.media_provider,
        )
        self.cdn_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "r2.provider.cdn",
            self.cdn_provider,
        )
        self.ticket_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "r2.provider.support",
            # TODO: fix this later, it refuses to pick up 
            # g.config['ticket_provider'] value, so hardcoding for now.
            # really, the next uncommented line should be:
            #self.ticket_provider,
            # instead of:
            "zendesk",
        )
        self.image_resizing_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "r2.provider.image_resizing",
            self.image_resizing_provider,
        )
        self.email_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "r2.provider.email",
            self.email_provider,
        )
        self.startup_timer.intermediate("providers")

        ################# CONFIGURATION
        # AMQP is required
        if not self.amqp_host:
            raise ValueError("amqp_host not set in the .ini")

        if not self.cassandra_seeds:
            raise ValueError("cassandra_seeds not set in the .ini")

        # heavy load mode is read only mode with a different infobar
        if self.heavy_load_mode:
            self.read_only_mode = True

        origin_prefix = self.domain_prefix + "." if self.domain_prefix else ""
        self.origin = self.default_scheme + "://" + origin_prefix + self.domain

        self.trusted_domains = set([self.domain])
        if self.https_endpoint:
            https_url = urlparse(self.https_endpoint)
            self.trusted_domains.add(https_url.hostname)

        # load the unique hashed names of files under static
        static_files = os.path.join(self.paths.get('static_files'), 'static')
        names_file_path = os.path.join(static_files, 'names.json')
        if os.path.exists(names_file_path):
            with open(names_file_path) as handle:
                self.static_names = json.load(handle)
        else:
            self.static_names = {}

        # make python warnings go through the logging system
        logging.captureWarnings(capture=True)

        log = logging.getLogger('reddit')

        # when we're a script (paster run) just set up super simple logging
#.........这里部分代码省略.........