Ejemplo n.º 1
0
 def test_dict(self):
     self.assertEquals({}, ConfigValue.dict(str, str)(''))
     self.assertEquals({'a': ''}, ConfigValue.dict(str, str)('a'))
     self.assertEquals({'a': 3}, ConfigValue.dict(str, int)('a: 3'))
     self.assertEquals({
         'a': 3,
         'b': 4
     },
                       ConfigValue.dict(str, int)('a: 3, b: 4'))
     self.assertEquals({
         'a': (3, 5),
         'b': (4, 6)
     },
                       ConfigValue.dict(str,
                                        ConfigValue.tuple_of(int),
                                        delim=';')('a: 3, 5;  b: 4, 6'))
Ejemplo n.º 2
0
    def load_db_params(self):
        self.databases = tuple(
            ConfigValue.to_iter(self.config.raw_data['databases']))
        self.db_params = {}
        self.predefined_type_ids = {}
        if not self.databases:
            return

        if self.env == 'unit_test':
            from mock import MagicMock
            return MagicMock()

        dbm = db_manager.db_manager()
        db_param_names = ('name', 'db_host', 'db_user', 'db_pass', 'db_port',
                          'pool_size', 'max_overflow')
        for db_name in self.databases:
            conf_params = ConfigValue.to_iter(self.config.raw_data[db_name +
                                                                   '_db'])
            params = dict(zip(db_param_names, conf_params))
            if params['db_user'] == "*":
                params['db_user'] = self.db_user
            if params['db_pass'] == "*":
                params['db_pass'] = self.db_pass
            if params['db_port'] == "*":
                params['db_port'] = self.db_port

            if params['pool_size'] == "*":
                params['pool_size'] = self.db_pool_size
            if params['max_overflow'] == "*":
                params['max_overflow'] = self.db_pool_overflow_size

            dbm.setup_db(db_name, g_override=self, **params)
            self.db_params[db_name] = params

        dbm.type_db = dbm.get_engine(self.config.raw_data['type_db'])
        dbm.relation_type_db = dbm.get_engine(
            self.config.raw_data['rel_type_db'])

        def split_flags(raw_params):
            params = []
            flags = {}

            for param in raw_params:
                if not param.startswith("!"):
                    params.append(param)
                else:
                    key, sep, value = param[1:].partition("=")
                    if sep:
                        flags[key] = value
                    else:
                        flags[key] = True

            return params, flags

        prefix = 'db_table_'
        for k, v in self.config.raw_data.iteritems():
            if not k.startswith(prefix):
                continue

            params, table_flags = split_flags(ConfigValue.to_iter(v))
            name = k[len(prefix):]
            kind = params[0]
            server_list = self.config.raw_data["db_servers_" + name]
            engines, flags = split_flags(ConfigValue.to_iter(server_list))

            typeid = table_flags.get("typeid")
            if typeid:
                self.predefined_type_ids[name] = int(typeid)

            if kind == 'thing':
                dbm.add_thing(name, dbm.get_engines(engines), **flags)
            elif kind == 'relation':
                dbm.add_relation(name, params[1], params[2],
                                 dbm.get_engines(engines), **flags)
        return dbm
Ejemplo n.º 3
0
class Globals(object):
    spec = {
        ConfigValue.int: [
            'db_pool_size',
            'db_pool_overflow_size',
            'commentpane_cache_time',
            'num_mc_clients',
            'MAX_CAMPAIGNS_PER_LINK',
            'MIN_DOWN_LINK',
            'MIN_UP_KARMA',
            'MIN_DOWN_KARMA',
            'MIN_RATE_LIMIT_KARMA',
            'MIN_RATE_LIMIT_COMMENT_KARMA',
            'HOT_PAGE_AGE',
            'ADMIN_COOKIE_TTL',
            'ADMIN_COOKIE_MAX_IDLE',
            'OTP_COOKIE_TTL',
            'hsts_max_age',
            'num_comments',
            'max_comments',
            'max_comments_sodium',
            'max_comment_parent_walk',
            'max_sr_images',
            'num_serendipity',
            'comment_visits_period',
            'butler_max_mentions',
            'min_membership_create_community',
            'bcrypt_work_factor',
            'cassandra_pool_size',
            'sr_banned_quota',
            'sr_muted_quota',
            'sr_wikibanned_quota',
            'sr_wikicontributor_quota',
            'sr_moderator_invite_quota',
            'sr_contributor_quota',
            'sr_quota_time',
            'sr_invite_limit',
            'thumbnail_hidpi_scaling',
            'wiki_keep_recent_days',
            'wiki_max_page_length_bytes',
            'wiki_max_page_name_length',
            'wiki_max_page_separators',
            'RL_RESET_MINUTES',
            'RL_OAUTH_RESET_MINUTES',
            'comment_karma_display_floor',
            'link_karma_display_floor',
            'mobile_auth_sild_time',
            'default_total_budget_pennies',
            'min_total_budget_pennies',
            'max_total_budget_pennies',
            'default_bid_pennies',
            'min_bid_pennies',
            'max_bid_pennies',
            'frequency_cap_min',
            'frequency_cap_default',
            'eu_cookie_max_attempts',
        ],
        ConfigValue.float: [
            'statsd_sample_rate',
            'querycache_prune_chance',
            'RL_AVG_REQ_PER_SEC',
            'RL_OAUTH_AVG_REQ_PER_SEC',
            'RL_LOGIN_AVG_PER_SEC',
            'RL_LOGIN_IP_AVG_PER_SEC',
            'RL_SHARE_AVG_PER_SEC',
            'tracing_sample_rate',
        ],
        ConfigValue.bool: [
            'debug',
            'log_start',
            'sqlprinting',
            'template_debug',
            'reload_templates',
            'uncompressedJS',
            'css_killswitch',
            'db_create_tables',
            'disallow_db_writes',
            'disable_ratelimit',
            'amqp_logging',
            'read_only_mode',
            'disable_wiki',
            'heavy_load_mode',
            'disable_captcha',
            'disable_ads',
            'disable_require_admin_otp',
            'trust_local_proxies',
            'shard_commentstree_queues',
            'shard_author_query_queues',
            'shard_subverbify_query_queues',
            'shard_domain_query_queues',
            'authnet_validate',
            'ENFORCE_RATELIMIT',
            'RL_SITEWIDE_ENABLED',
            'RL_OAUTH_SITEWIDE_ENABLED',
            'enable_loggedout_experiments',
        ],
        ConfigValue.tuple: [
            'plugins',
            'stalecaches',
            'lockcaches',
            'permacache_memcaches',
            'cassandra_seeds',
            'automatic_verbifys',
            'hardcache_categories',
            'case_sensitive_domains',
            'known_image_domains',
            'reserved_subdomains',
            'offsite_subdomains',
            'TRAFFIC_LOG_HOSTS',
            'exempt_login_user_agents',
            'autoexpand_media_types',
            'media_preview_domain_whitelist',
            'multi_icons',
            'hide_subscribers_srs',
            'mcrouter_addr',
        ],
        ConfigValue.tuple_of(ConfigValue.int): [
            'thumbnail_size',
            'preview_image_max_size',
            'preview_image_min_size',
            'mobile_ad_image_size',
        ],
        ConfigValue.tuple_of(ConfigValue.float): [
            'ios_versions',
            'android_versions',
        ],
        ConfigValue.dict(ConfigValue.str, ConfigValue.int): [
            'user_agent_ratelimit_regexes',
        ],
        ConfigValue.str: [
            'wiki_page_registration_info',
            'wiki_page_privacy_policy',
            'wiki_page_user_agreement',
            'wiki_page_sodium_bottlecaps',
            'fraud_email',
            'feedback_email',
            'share_reply',
            'community_email',
            'smtp_server',
            'events_collector_url',
            'events_collector_test_url',
            'search_provider',
        ],
        ConfigValue.choice(ONE=CL_ONE, QUORUM=CL_QUORUM): [
            'cassandra_rcl',
            'cassandra_wcl',
        ],
        ConfigValue.choice(zookeeper="zookeeper", config="config"): [
            "liveconfig_source",
            "secrets_source",
        ],
        ConfigValue.timeinterval: [
            'ARCHIVE_AGE',
            "vote_queue_grace_period",
        ],
        config_sodium_price: [
            'sodium_month_price',
            'sodium_year_price',
            'cpm_selfserve',
            'cpm_selfserve_geotarget_metro',
            'cpm_selfserve_geotarget_country',
            'cpm_selfserve_collection',
        ],
        ConfigValue.baseplate(
            baseplate_config.Optional(baseplate_config.Endpoint)): [
            "activity_endpoint",
            "tracing_endpoint",
        ],
        ConfigValue.dict(ConfigValue.str, ConfigValue.str): [
            'emr_traffic_tags',
        ],
    }

    live_config_spec = {
        ConfigValue.bool: [
            'frontend_logging',
            'mobile_sild_first_login',
            'precomputed_comment_suggested_sort',
        ],
        ConfigValue.int: [
            'captcha_exempt_comment_karma',
            'captcha_exempt_link_karma',
            'create_sr_account_age_days',
            'create_sr_comment_karma',
            'create_sr_link_karma',
            'cflag_min_votes',
            'ads_popularity_threshold',
            'precomputed_comment_sort_min_comments',
            'comment_vote_update_threshold',
            'comment_vote_update_period',
        ],
        ConfigValue.float: [
            'cflag_lower_bound',
            'cflag_upper_bound',
            'spotlight_interest_sub_p',
            'spotlight_interest_nosub_p',
            'sodium_revenue_goal',
            'invalid_key_sample_rate',
            'events_collector_vote_sample_rate',
            'events_collector_poison_sample_rate',
            'events_collector_mod_sample_rate',
            'events_collector_quarantine_sample_rate',
            'events_collector_modmail_sample_rate',
            'events_collector_report_sample_rate',
            'events_collector_submit_sample_rate',
            'events_collector_comment_sample_rate',
            'events_collector_use_gzip_chance',
            'https_cert_testing_probability',
        ],
        ConfigValue.tuple: [
            'fastlane_links',
            'listing_chooser_sample_multis',
            'discovery_srs',
            'proxy_silding_accounts',
            'mweb_blacklist_expressions',
            'global_loid_experiments',
            'precomputed_comment_sorts',
            'mailgun_domains',
        ],
        ConfigValue.str: [
            'listing_chooser_sodium_multi',
            'listing_chooser_explore_sr',
        ],
        ConfigValue.messages: [
            'welcomebar_messages',
            'sidebar_message',
            'sodium_sidebar_message',
        ],
        ConfigValue.dict(ConfigValue.str, ConfigValue.int): [
            'ticket_groups',
            'ticket_user_fields',
        ],
        ConfigValue.dict(ConfigValue.str, ConfigValue.float): [
            'pennies_per_server_second',
        ],
        ConfigValue.dict(ConfigValue.str, ConfigValue.str): [
            'employee_approved_clients',
            'modmail_forwarding_email',
            'modmail_account_map',
        ],
        ConfigValue.dict(ConfigValue.str, ConfigValue.choice(**PERMISSIONS)): [
            'employees',
        ],
    }

    def __init__(self, config, global_conf, app_conf, paths, **extra):
        """
        Globals acts as a container for objects available throughout
        the life of the application.

        One instance of Globals is created by Pylons during
        application initialization and is available during requests
        via the 'g' variable.

        ``config``
            The PylonsConfig object passed in from ``config/environment.py``

        ``global_conf``
            The same variable used throughout ``config/middleware.py``
            namely, the variables from the ``[DEFAULT]`` section of the
            configuration file.

        ``app_conf``
            The same ``kw`` dictionary used throughout
            ``config/middleware.py`` namely, the variables from the
            section in the config file for your application.

        ``extra``
            The configuration returned from ``load_config`` in 
            ``config/middleware.py`` which may be of use in the setup of
            your global variables.

        """

        global_conf.setdefault("debug", False)

        # reloading site ensures that we have a fresh sys.path to build our
        # working set off of. this means that forked worker processes won't get
        # the sys.path that was current when the master process was spawned
        # meaning that new plugins will be picked up on regular app reload
        # rather than having to restart the master process as well.
        reload(site)
        self.pkg_resources_working_set = pkg_resources.WorkingSet()

        self.config = ConfigValueParser(global_conf)
        self.config.add_spec(self.spec)
        self.plugins = PluginLoader(self.pkg_resources_working_set,
                                    self.config.get("plugins", []))

        self.stats = Stats(self.config.get('statsd_addr'),
                           self.config.get('statsd_sample_rate'))
        self.startup_timer = self.stats.get_timer("app_startup")
        self.startup_timer.start()

        self.baseplate = Baseplate()
        self.baseplate.configure_logging()
        self.baseplate.register(V1BaseplateObserver())
        self.baseplate.configure_tracing(
            "v1",
            tracing_endpoint=self.config.get("tracing_endpoint"),
            sample_rate=self.config.get("tracing_sample_rate"),
        )

        self.paths = paths

        self.running_as_script = global_conf.get('running_as_script', False)

        # turn on for language support
        self.lang = getattr(self, 'site_lang', 'en')
        self.languages, self.lang_name = get_active_langs(
            config, default_lang=self.lang)

        all_languages = self.lang_name.keys()
        all_languages.sort()
        self.all_languages = all_languages

        # set default time zone if one is not set
        tz = global_conf.get('timezone', 'UTC')
        self.tz = pytz.timezone(tz)

        dtz = global_conf.get('display_timezone', tz)
        self.display_tz = pytz.timezone(dtz)

        self.startup_timer.intermediate("init")

    def __getattr__(self, name):
        if not name.startswith('_') and name in self.config:
            return self.config[name]
        else:
            raise AttributeError("g has no attr %r" % name)

    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,
            "v1.provider.auth",
            self.authentication_provider,
        )
        self.media_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "v1.provider.media",
            self.media_provider,
        )
        self.cdn_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "v1.provider.cdn",
            self.cdn_provider,
        )
        self.ticket_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "v1.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,
            "v1.provider.image_resizing",
            self.image_resizing_provider,
        )
        self.email_provider = select_provider(
            self.config,
            self.pkg_resources_working_set,
            "v1.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('verbify')

        # 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 = "verbify-app"
        self.log = logging.LoggerAdapter(log, {"pool": pool})

        # set locations
        locations = pkg_resources.resource_stream(__name__,
                                                  "../data/locations.json")
        self.locations = json.loads(locations.read())

        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")
        if self.oauth_domain == self.domain:
            print >> sys.stderr, ("Warning: g.oauth_domain == g.domain. "
                                  "CORS requests to g.domain will be allowed")

        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.verbify_host = socket.gethostname()
        self.verbify_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)

        self.RL_LOGIN_MAX_REQS = int(self.config["RL_LOGIN_AVG_PER_SEC"] *
                                     self.RL_RESET_SECONDS)
        self.RL_LOGIN_IP_MAX_REQS = int(
            self.config["RL_LOGIN_IP_AVG_PER_SEC"] * self.RL_RESET_SECONDS)
        self.RL_SHARE_MAX_REQS = int(self.config["RL_SHARE_AVG_PER_SEC"] *
                                     self.RL_RESET_SECONDS)

        # Compile ratelimit regexs
        user_agent_ratelimit_regexes = {}
        for agent_re, limit in self.user_agent_ratelimit_regexes.iteritems():
            user_agent_ratelimit_regexes[re.compile(agent_re)] = limit
        self.user_agent_ratelimit_regexes = user_agent_ratelimit_regexes

        self.startup_timer.intermediate("configuration")

        ################# ZOOKEEPER
        zk_hosts = self.config["zookeeper_connection_string"]
        zk_username = self.config["zookeeper_username"]
        zk_password = self.config["zookeeper_password"]
        self.zookeeper = connect_to_zookeeper(zk_hosts,
                                              (zk_username, zk_password))

        self.throttles = IPNetworkLiveList(
            self.zookeeper,
            root="/throttles",
            reduced_data_node="/throttles_reduced",
        )

        parser = ConfigParser.RawConfigParser()
        parser.optionxform = str
        parser.read([self.config["__file__"]])

        if self.config["liveconfig_source"] == "zookeeper":
            self.live_config = LiveConfig(self.zookeeper, LIVE_CONFIG_NODE)
        else:
            self.live_config = extract_live_config(parser, self.plugins)

        if self.config["secrets_source"] == "zookeeper":
            self.secrets = fetch_secrets(self.zookeeper)
        else:
            self.secrets = extract_secrets(parser)

        ################# PRIVILEGED USERS
        self.admins = PermissionFilteredEmployeeList(self.live_config,
                                                     type="admin")
        self.sponsors = PermissionFilteredEmployeeList(self.live_config,
                                                       type="sponsor")
        self.employees = PermissionFilteredEmployeeList(self.live_config,
                                                        type="employee")

        # Store which OAuth clients employees may use, the keys are just for
        # readability.
        self.employee_approved_clients = \
            self.live_config["employee_approved_clients"].values()

        self.startup_timer.intermediate("zookeeper")

        ################# MEMCACHE
        num_mc_clients = self.num_mc_clients

        # a smaller pool of caches used only for distributed locks.
        self.lock_cache = CMemcache(
            "lock",
            self.lockcaches,
            num_clients=num_mc_clients,
        )
        self.make_lock = make_lock_factory(self.lock_cache, self.stats)

        # memcaches used in front of the permacache CF in cassandra.
        # XXX: this is a legacy thing; permacache was made when C* didn't have
        # a row cache.
        permacache_memcaches = CMemcache(
            "perma",
            self.permacache_memcaches,
            min_compress_len=1400,
            num_clients=num_mc_clients,
        )

        # the stalecache is a memcached local to the current app server used
        # for data that's frequently fetched but doesn't need to be fresh.
        if self.stalecaches:
            stalecaches = CMemcache(
                "stale",
                self.stalecaches,
                num_clients=num_mc_clients,
            )
        else:
            stalecaches = None

        self.startup_timer.intermediate("memcache")

        ################# MCROUTER
        self.mcrouter = Mcrouter(
            "mcrouter",
            self.mcrouter_addr,
            min_compress_len=1400,
            num_clients=num_mc_clients,
        )

        ################# THRIFT-BASED SERVICES
        activity_endpoint = self.config.get("activity_endpoint")
        if activity_endpoint:
            # make ActivityInfo objects rendercache-key friendly
            # TODO: figure out a more general solution for this if
            # we need to do this for other thrift-generated objects
            ActivityInfo.cache_key = lambda self, style: repr(self)

            activity_pool = ThriftConnectionPool(activity_endpoint,
                                                 timeout=0.1)
            self.baseplate.add_to_context(
                "activity_service",
                ThriftContextFactory(activity_pool, ActivityService.Client))

        self.startup_timer.intermediate("thrift")

        ################# CASSANDRA
        keyspace = "verbify"
        self.cassandra_pools = {
            "main":
            StatsCollectingConnectionPool(keyspace,
                                          stats=self.stats,
                                          logging_name="main",
                                          server_list=self.cassandra_seeds,
                                          pool_size=self.cassandra_pool_size,
                                          timeout=4,
                                          max_retries=3,
                                          prefill=False),
        }

        permacache_cf = Permacache._setup_column_family(
            'permacache',
            self.cassandra_pools[self.cassandra_default_pool],
        )

        self.startup_timer.intermediate("cassandra")

        ################# POSTGRES
        self.dbm = self.load_db_params()
        self.startup_timer.intermediate("postgres")

        ################# CHAINS
        # initialize caches. Any cache-chains built here must be added
        # to cache_chains (closed around by reset_caches) so that they
        # can properly reset their local components
        cache_chains = {}
        localcache_cls = (SelfEmptyingCache
                          if self.running_as_script else LocalCache)

        if stalecaches:
            self.gencache = StaleCacheChain(
                localcache_cls(),
                stalecaches,
                self.mcrouter,
            )
        else:
            self.gencache = CacheChain((localcache_cls(), self.mcrouter))
        cache_chains.update(gencache=self.gencache)

        if stalecaches:
            self.thingcache = StaleCacheChain(
                localcache_cls(),
                stalecaches,
                self.mcrouter,
            )
        else:
            self.thingcache = CacheChain((localcache_cls(), self.mcrouter))
        cache_chains.update(thingcache=self.thingcache)

        if stalecaches:
            self.memoizecache = StaleCacheChain(
                localcache_cls(),
                stalecaches,
                self.mcrouter,
            )
        else:
            self.memoizecache = MemcacheChain(
                (localcache_cls(), self.mcrouter))
        cache_chains.update(memoizecache=self.memoizecache)

        if stalecaches:
            self.srmembercache = StaleCacheChain(
                localcache_cls(),
                stalecaches,
                self.mcrouter,
            )
        else:
            self.srmembercache = MemcacheChain(
                (localcache_cls(), self.mcrouter))
        cache_chains.update(srmembercache=self.srmembercache)

        if stalecaches:
            self.relcache = StaleCacheChain(
                localcache_cls(),
                stalecaches,
                self.mcrouter,
            )
        else:
            self.relcache = MemcacheChain((localcache_cls(), self.mcrouter))
        cache_chains.update(relcache=self.relcache)

        self.ratelimitcache = MemcacheChain((localcache_cls(), self.mcrouter))
        cache_chains.update(ratelimitcache=self.ratelimitcache)

        # rendercache holds rendered partial templates.
        self.rendercache = MemcacheChain((
            localcache_cls(),
            self.mcrouter,
        ))
        cache_chains.update(rendercache=self.rendercache)

        # commentpanecaches hold fully rendered comment panes
        self.commentpanecache = MemcacheChain((
            localcache_cls(),
            self.mcrouter,
        ))
        cache_chains.update(commentpanecache=self.commentpanecache)

        # cassandra_local_cache is used for request-local caching in tdb_cassandra
        self.cassandra_local_cache = localcache_cls()
        cache_chains.update(cassandra_local_cache=self.cassandra_local_cache)

        if stalecaches:
            permacache_cache = StaleCacheChain(
                localcache_cls(),
                stalecaches,
                permacache_memcaches,
            )
        else:
            permacache_cache = CacheChain(
                (localcache_cls(), permacache_memcaches), )
        cache_chains.update(permacache=permacache_cache)

        self.permacache = Permacache(
            permacache_cache,
            permacache_cf,
            lock_factory=self.make_lock,
        )

        # hardcache is used for various things that tend to expire
        # TODO: replace hardcache w/ cassandra stuff
        self.hardcache = HardcacheChain(
            (localcache_cls(), HardCache(self)),
            cache_negative_results=True,
        )
        cache_chains.update(hardcache=self.hardcache)

        # I know this sucks, but we need non-request-threads to be
        # able to reset the caches, so we need them be able to close
        # around 'cache_chains' without being able to call getattr on
        # 'g'
        def reset_caches():
            for name, chain in cache_chains.iteritems():
                if isinstance(chain, TransitionalCache):
                    chain = chain.read_chain

                chain.reset()
                if isinstance(chain, LocalCache):
                    continue
                elif isinstance(chain, StaleCacheChain):
                    chain.stats = StaleCacheStats(self.stats, name)
                else:
                    chain.stats = CacheStats(self.stats, name)

        self.cache_chains = cache_chains

        self.reset_caches = reset_caches
        self.reset_caches()

        self.startup_timer.intermediate("cache_chains")

        # try to set the source control revision numbers
        self.versions = {}
        v1_root = os.path.dirname(os.path.dirname(self.paths["root"]))
        v1_gitdir = os.path.join(v1_root, ".git")
        self.short_version = self.record_repo_version("v1", v1_gitdir)

        if I18N_PATH:
            i18n_git_path = os.path.join(os.path.dirname(I18N_PATH), ".git")
            self.record_repo_version("i18n", i18n_git_path)

        # Initialize the amqp module globals, start the worker, etc.
        v1.lib.amqp.initialize(self)

        self.events = EventQueue()

        self.startup_timer.intermediate("revisions")

    def setup_complete(self):
        self.startup_timer.stop()
        self.stats.flush()

        if self.log_start:
            self.log.error("%s:%s started %s at %s (took %.02fs)",
                           self.verbify_host, self.verbify_pid,
                           self.short_version,
                           datetime.now().strftime("%H:%M:%S"),
                           self.startup_timer.elapsed_seconds())

        if einhorn.is_worker():
            einhorn.ack_startup()

    def record_repo_version(self, repo_name, git_dir):
        """Get the currently checked out git revision for a given repository,
        record it in g.versions, and return the short version of the hash."""
        try:
            subprocess.check_output
        except AttributeError:
            # python 2.6 compat
            pass
        else:
            try:
                revision = subprocess.check_output(
                    ["git", "--git-dir", git_dir, "rev-parse", "HEAD"])
            except subprocess.CalledProcessError, e:
                self.log.warning("Unable to fetch git revision: %r", e)
            else:
Ejemplo n.º 4
0
def load_environment(global_conf={}, app_conf={}, setup_globals=True):
    v1_path = get_v1_path()
    root_path = os.path.join(v1_path, 'v1')

    paths = {
        'root': root_path,
        'controllers': os.path.join(root_path, 'controllers'),
        'templates': [os.path.join(root_path, 'templates')],
    }

    if ConfigValue.bool(global_conf.get('uncompressedJS')):
        paths['static_files'] = get_raw_statics_path()
    else:
        paths['static_files'] = get_built_statics_path()

    config = PylonsConfig()

    config.init_app(global_conf, app_conf, package='v1', paths=paths)

    # don't put action arguments onto c automatically
    config['pylons.c_attach_args'] = False

    # when accessing non-existent attributes on c, return "" instead of dying
    config['pylons.strict_tmpl_context'] = False

    g = Globals(config, global_conf, app_conf, paths)
    config['pylons.app_globals'] = g

    if setup_globals:
        config['v1.import_private'] = \
            ConfigValue.bool(global_conf['import_private'])
        g.setup()
        g.plugins.declare_queues(g.queues)

    g.plugins.load_plugins(config)
    config['v1.plugins'] = g.plugins
    g.startup_timer.intermediate("plugins")

    config['pylons.h'] = v1.lib.helpers
    config['routes.map'] = make_map(config)

    #override the default response options
    config['pylons.response_options']['headers'] = {}

    # when mako loads a previously compiled template file from its cache, it
    # doesn't check that the original template path matches the current path.
    # in the event that a new plugin defines a template overriding a verbify
    # template, unless the mtime newer, mako doesn't update the compiled
    # template. as a workaround, this makes mako store compiled templates with
    # the original path in the filename, forcing it to update with the path.
    if "cache_dir" in app_conf:
        module_directory = os.path.join(app_conf['cache_dir'], 'templates')

        def mako_module_path(filename, uri):
            filename = filename.lstrip('/').replace('/', '-')
            path = os.path.join(module_directory, filename + ".py")
            return os.path.abspath(path)
    else:
        # disable caching templates since we don't know where they should go.
        module_directory = mako_module_path = None

    # set up the templating system
    config["pylons.app_globals"].mako_lookup = TemplateLookup(
        directories=paths["templates"],
        error_handler=handle_mako_error,
        module_directory=module_directory,
        input_encoding="utf-8",
        default_filters=["conditional_websafe"],
        filesystem_checks=getattr(g, "reload_templates", False),
        imports=[
            "from v1.lib.filters import websafe, unsafe, conditional_websafe",
            "from pylons import request",
            "from pylons import tmpl_context as c",
            "from pylons import app_globals as g",
            "from pylons.i18n import _, ungettext",
        ],
        modulename_callable=mako_module_path,
    )

    if setup_globals:
        g.setup_complete()

    return config
Ejemplo n.º 5
0
 def test_timeinterval(self):
     self.assertEquals(datetime.timedelta(0, 60),
                       ConfigValue.timeinterval('1 minute'))
     with self.assertRaises(KeyError):
         ConfigValue.timeinterval('asdf')
Ejemplo n.º 6
0
 def test_choice(self):
     self.assertEquals(1, ConfigValue.choice(alpha=1)('alpha'))
     self.assertEquals(2, ConfigValue.choice(alpha=1, beta=2)('beta'))
     with self.assertRaises(ValueError):
         ConfigValue.choice(alpha=1)('asdf')
Ejemplo n.º 7
0
 def test_tuple_of(self):
     self.assertEquals((), ConfigValue.tuple_of(str)(''))
     self.assertEquals(('a', 'b'), ConfigValue.tuple_of(str)('a, b'))
     self.assertEquals(('a', 'b'),
                       ConfigValue.tuple_of(str, delim=':')('a : b'))
Ejemplo n.º 8
0
 def test_set(self):
     self.assertEquals(set([]), ConfigValue.set(''))
     self.assertEquals(set(['a', 'b']), ConfigValue.set('a, b'))
Ejemplo n.º 9
0
 def test_set_of(self):
     self.assertEquals(set([]), ConfigValue.set_of(str)(''))
     self.assertEquals(set(['a', 'b']), ConfigValue.set_of(str)('a, b, b'))
     self.assertEquals(set(['a', 'b']),
                       ConfigValue.set_of(str, delim=':')('b : a : b'))
Ejemplo n.º 10
0
 def test_tuple(self):
     self.assertEquals((), ConfigValue.tuple(''))
     self.assertEquals(('a', 'b'), ConfigValue.tuple('a, b'))
Ejemplo n.º 11
0
 def test_bool(self):
     self.assertEquals(True, ConfigValue.bool('TrUe'))
     self.assertEquals(False, ConfigValue.bool('fAlSe'))
     with self.assertRaises(ValueError):
         ConfigValue.bool('asdf')
Ejemplo n.º 12
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 def test_float(self):
     self.assertEquals(3.0, ConfigValue.float('3'))
     self.assertEquals(-3.0, ConfigValue.float('-3'))
     with self.assertRaises(ValueError):
         ConfigValue.float('asdf')
Ejemplo n.º 13
0
 def test_int(self):
     self.assertEquals(3, ConfigValue.int('3'))
     self.assertEquals(-3, ConfigValue.int('-3'))
     with self.assertRaises(ValueError):
         ConfigValue.int('asdf')
Ejemplo n.º 14
0
 def test_str(self):
     self.assertEquals('x', ConfigValue.str('x'))