Example #1
0
def create_app(config=None, debug=False):
    '''
    Inicializa la aplicación Flask. Carga los siguientes módulos:
     - index: página de inicio
     - page: páginas estáticas
     - user: gestión del usuario
     - files: búsqueda y obtención de ficheros
     - status: servicio de monitorización de la aplicación

    Y además, inicializa los siguientes servicios:
     - Configuración: carga valores por defecto y modifica con el @param config
     - Web Assets: compilación y compresión de recursos estáticos
     - i18n: detección de idioma en la URL y catálogos de mensajes
     - Cache y auth: Declarados en el módulo services
     - Files: Clases para acceso a datos
    '''
    app = Flask(__name__)
    app.config.from_object(defaults)
    app.debug = debug

    # Configuración
    if config:
        app.config.from_object(config)

    # Modo de appweb
    appmode = app.config["APPWEB_MODE"]

    # Gestión centralizada de errores
    if app.config["SENTRY_DSN"]:
        sentry.init_app(app)
    logging.getLogger().setLevel(logging.DEBUG if debug else logging.INFO)

    # Configuración dependiente de la versión del código
    revision_filename_path = os.path.join(os.path.dirname(app.root_path),
                                          "revision")
    if os.path.exists(revision_filename_path):
        f = open(revision_filename_path, "r")
        data = f.read()
        f.close()
        revisions = tuple(
            tuple(i.strip() for i in line.split("#")[0].split())
            for line in data.strip().split("\n")
            if line.strip() and not line.strip().startswith("#"))
        revision_hash = md5(data).hexdigest()
        app.config.update(CACHE_KEY_PREFIX="%s%s/" %
                          (app.config["CACHE_KEY_PREFIX"] if "CACHE_KEY_PREFIX"
                           in app.config else "", revision_hash),
                          REVISION_HASH=revision_hash,
                          REVISION=revisions)
    else:
        app.config.update(REVISION_HASH=None, REVISION=())

    # Registra filtros de plantillas
    register_filters(app)

    # Registra valores/funciones para plantillas
    app.jinja_env.globals["u"] = u

    # proteccion CSRF
    csrf.init_app(app)

    # Blueprints
    if appmode == "search":
        app.register_blueprint(files)
    elif appmode == "extras":
        app.register_blueprint(extras)
    else:
        logging.error(
            "No se ha especificado modo en la configuración. Blueprints sin cargar."
        )

    # Web Assets
    scss.config.LOAD_PATHS = [
        os.path.dirname(os.path.dirname(app.static_folder))
    ]

    if not os.path.isdir(app.static_folder + "/gen"):
        os.mkdir(app.static_folder + "/gen")
    if not os.path.isdir(app.static_folder + "/blubster/gen"):
        os.mkdir(app.static_folder + "/blubster/gen")
    if not os.path.isdir(app.static_folder + "/foofind/gen"):
        os.mkdir(app.static_folder + "/foofind/gen")
    app.assets = assets = Environment(app)
    assets.debug = app.debug
    assets.versions = "hash"

    register_filter(JsSlimmer)
    register_filter(CssSlimmer)

    assets.register('css_blubster',
                    Bundle('blubster/css/blubster.scss',
                           filters='pyscss',
                           output='blubster/gen/blubster.css',
                           debug=False,
                           depends='appweb.scss'),
                    filters='css_slimmer',
                    output='blubster/gen/blubster.css')
    assets.register('css_foofind',
                    Bundle('foofind/css/foofind.scss',
                           filters='pyscss',
                           output='foofind/gen/foofind.css',
                           debug=False),
                    filters='css_slimmer',
                    output='foofind/gen/foofind.css')

    # Traducciones
    babel.init_app(app)

    @babel.localeselector
    def get_locale():
        return "en"

    # Autenticación
    auth.setup_app(app)
    auth.user_loader(User.current_user)
    auth.anonymous_user = User.current_user

    # Cache
    cache.init_app(app)

    # Acceso a bases de datos
    filesdb.init_app(app)
    pagesdb.init_app(app)
    feedbackdb.init_app(app)
    entitiesdb.init_app(app)
    usersdb.init_app(app)
    plugindb.init_app(app)

    # Servicio de búsqueda
    @app.before_first_request
    def init_process():
        if not eventmanager.is_alive():
            # Fallback inicio del eventManager
            eventmanager.start()

    # Profiler
    profiler.init_app(app, feedbackdb)

    eventmanager.once(searchd.init_app,
                      hargs=(app, filesdb, entitiesdb, profiler))

    # Refresco de conexiones
    eventmanager.once(filesdb.load_servers_conn)
    eventmanager.interval(app.config["FOOCONN_UPDATE_INTERVAL"],
                          filesdb.load_servers_conn)
    eventmanager.interval(app.config["FOOCONN_UPDATE_INTERVAL"],
                          entitiesdb.connect)

    @app.url_value_preprocessor
    def pull_lang_code(endpoint, values):
        if values is None:
            g.lang = "en"
        else:
            g.lang = values.pop('lang', "en")

    @app.url_defaults
    def add_language_code(endpoint, values):
        if not 'lang' in values and app.url_map.is_endpoint_expecting(
                endpoint, 'lang'):
            values['lang'] = g.lang

    @app.before_request
    def before_request():
        # No preprocesamos la peticiones a static
        if request.path.startswith("/static/"):
            return

        init_g(app)

        # ignora peticiones sin blueprint
        if request.blueprint is None and len(
                request.path) > 1 and request.path.endswith("/"):
            if "?" in request.url:
                root = request.url_root[:-1]
                path = request.path.rstrip("/")
                query = request.url.decode("utf-8")
                query = query[query.find(u"?"):]
                return redirect(root + path + query, 301)
            return redirect(request.url.rstrip("/"), 301)

    @app.after_request
    def after_request(response):
        response.headers["X-UA-Compatible"] = "IE=edge"
        return response

    # Páginas de error
    errors = {
        404: ("Page not found", "The requested address does not exists."),
        410: ("Page not available",
              "The requested address is no longer available."),
        500:
        ("An error happened",
         "We had some problems displaying this page. Maybe later we can show it to you."
         ),
        503: ("Service unavailable",
              "This page is temporarily unavailable. Please try again later.")
    }

    @allerrors(app, 400, 401, 403, 404, 405, 408, 409, 410, 411, 412, 413, 414,
               415, 416, 417, 418, 500, 501, 502, 503)
    def all_errors(e):
        error = e.code if hasattr(e, "code") else 500
        title, description = errors[error if error in errors else 500]
        init_g(app)
        return render_template('error.html',
                               code=str(error),
                               title=title,
                               description=description), error

    return app
Example #2
0
def create_app(config=None, debug=False):
    '''
    Inicializa la aplicación Flask. Carga los siguientes módulos:
     - index: página de inicio
     - page: páginas estáticas
     - user: gestión del usuario
     - files: búsqueda y obtención de ficheros
     - status: servicio de monitorización de la aplicación

    Y además, inicializa los siguientes servicios:
     - Configuración: carga valores por defecto y modifica con el @param config
     - Web Assets: compilación y compresión de recursos estáticos
     - i18n: detección de idioma en la URL y catálogos de mensajes
     - Cache y auth: Declarados en el módulo services
     - Files y users: Clases para acceso a datos
    '''
    app = Flask(__name__)
    app.config.from_object(defaults)
    app.debug = debug

    # Configuración
    if config:
        app.config.from_object(config)

    # Gestión centralizada de errores
    if app.config["SENTRY_DSN"]:
        sentry.init_app(app)
    logging.getLogger().setLevel(logging.DEBUG if debug else logging.INFO)


    # Configuración dependiente de la versión del código
    revision_filename_path = os.path.join(os.path.dirname(app.root_path), "revision")
    if os.path.exists(revision_filename_path):
        f = open(revision_filename_path, "r")
        data = f.read()
        f.close()
        revisions = tuple(
            tuple(i.strip() for i in line.split("#")[0].split())
            for line in data.strip().split("\n")
            if line.strip() and not line.strip().startswith("#"))
        revision_hash = md5(data).hexdigest()
        app.config.update(
            CACHE_KEY_PREFIX = "%s%s/" % (
                app.config["CACHE_KEY_PREFIX"] if "CACHE_KEY_PREFIX" in app.config else "",
                revision_hash
                ),
            REVISION_HASH = revision_hash,
            REVISION = revisions
            )
    else:
        app.config.update(
            REVISION_HASH = None,
            REVISION = ()
            )

    # Registra filtros de plantillas
    register_filters(app)

    # Registra valores/funciones para plantillas
    app.jinja_env.globals["u"] = u
    app.jinja_env.auto_reload = debug

    # Oauth
    init_oauth(app)

    # Blueprints
    app.register_blueprint(index)
    app.register_blueprint(page)
    app.register_blueprint(user)
    app.register_blueprint(files)
    app.register_blueprint(api)
    app.register_blueprint(downloader)
    add_labs(app) # Labs (blueprints y alternativas en pruebas)

    # Web Assets
    if not os.path.isdir(os.path.join(app.static_folder,"gen")):
        os.mkdir(os.path.join(app.static_folder,"gen"))
    app.assets = assets = Environment(app)
    assets.debug = app.debug
    assets.versions = "timestamp"

    register_filter(JsSlimmer)
    register_filter(CssSlimmer)

    assets.register('css_all', 'css/jquery-ui.css', Bundle('css/main.css', filters='pyscss', output='gen/main.css', debug=False), filters='css_slimmer', output='gen/foofind.css')
    assets.register('css_ie', 'css/ie.css', filters='css_slimmer', output='gen/ie.css')
    assets.register('css_ie7', 'css/ie7.css', filters='css_slimmer', output='gen/ie7.css')
    assets.register('css_labs', 'css/jquery-ui.css', Bundle('css/labs.css', filters='pyscss', output='gen/l.css', debug=False), filters='css_slimmer', output='gen/labs.css')
    assets.register('css_admin', Bundle('css/admin.css', 'css/jquery-ui.css', filters='css_slimmer', output='gen/admin.css'))

    assets.register('js_all', Bundle('js/jquery.js', 'js/jquery-ui.js', 'js/jquery.ui.selectmenu.js', 'js/files.js', filters='rjsmin', output='gen/foofind.js'), )
    assets.register('js_ie', Bundle('js/html5shiv.js', 'js/jquery-extra-selectors.js', 'js/jquery.ba-hashchange.js', 'js/selectivizr.js', filters='rjsmin', output='gen/ie.js'))
    assets.register('js_search', Bundle('js/jquery.hoverIntent.js', 'js/search.js', filters='rjsmin', output='gen/search.js'))
    assets.register('js_labs', Bundle('js/jquery.js', 'js/jquery-ui.js', 'js/labs.js', filters='rjsmin', output='gen/labs.js'))
    assets.register('js_admin', Bundle('js/jquery.js',  'js/jquery-ui-admin.js', 'js/admin.js', filters='rjsmin', output='gen/admin.js'))

    # proteccion CSRF
    csrf.init_app(app)

    # Detección de idioma
    @app.url_defaults
    def add_language_code(endpoint, values):
        '''
        Añade el código de idioma a una URL que lo incluye.
        '''
        if 'lang' in values or not g.lang:
            return
        #if endpoint in current_app.view_functions and hasattr(current_app.view_functions[endpoint], "_fooprint"):
        #    return
        if current_app.url_map.is_endpoint_expecting(endpoint, 'lang'):
            values['lang'] = g.lang

    @app.url_value_preprocessor
    def pull_lang_code(endpoint, values):
        '''
        Carga el código de idioma en la variable global.
        '''
        all_langs = current_app.config["ALL_LANGS"]
        # obtiene el idioma de la URL
        g.url_lang = None
        if values is not None:
            g.url_lang = values.pop('lang', None)

        # si esta lista de idiomas permitidos
        if g.url_lang and g.url_lang in all_langs:
            g.lang = g.url_lang
        # si el usuario esta logueado y tiene establecido el idioma se asigna ese
        elif "user" in session and "lang" in session["user"]:
            g.lang = session["user"]["lang"]
        # si no esta logueado y ha elegido un idioma
        elif "lang" in session:
            g.lang = session["lang"]
        else:
            accept = request.accept_languages.values()
            # si viene, se coge el que mas convenga dependiendo del que tenga establecido en su navegador o el idioma por defecto
            locale = Locale.negotiate((option.replace("-","_") for option in accept), all_langs) if accept else None

            if locale:
                g.lang = locale.language
            else:
                g.lang = app.config["LANGS"][0] # valor por defecto si todo falla

        if g.lang not in all_langs:
            logging.warn("Wrong language choosen.")
            g.lang = current_app.config["LANGS"][0]

        # se carga la lista de idiomas como se dice en cada idioma
        g.languages = OrderedDict((code, (localedata.load(code)["languages"], code in current_app.config["BETA_LANGS"])) for code in all_langs)
        g.beta_lang = g.lang in current_app.config["BETA_LANGS"]

    # Traducciones
    babel.init_app(app)

    @babel.localeselector
    def get_locale():
        '''
        Devuelve el código del idioma activo.
        '''
        try: return g.lang
        except: return "en"

    # Cache
    cache.init_app(app)
    configdb.register_action("flush_cache", cache.clear, _unique=True)

    # Autenticación
    auth.setup_app(app)
    auth.login_view="user.login"
    auth.login_message="login_required"
    auth.user_loader(User.current_user)
    auth.anonymous_user = User.current_user

    # Mail
    mail.init_app(app)

    # Acceso a bases de datos
    filesdb.init_app(app)
    usersdb.init_app(app)
    pagesdb.init_app(app)
    feedbackdb.init_app(app)
    configdb.init_app(app)
    entitiesdb.init_app(app)

    for service_name, params in app.config["DATA_SOURCE_SHARING"].iteritems():
        eval(service_name).share_connections(**{key:eval(value) for key, value in params.iteritems()})

    # Servicio de búsqueda
    @app.before_first_request
    def init_process():
        if not eventmanager.is_alive():
            # Fallback inicio del eventManager
            eventmanager.start()

    # Taming
    taming.init_app(app)

    # Profiler
    profiler.init_app(app, feedbackdb)

    eventmanager.once(searchd.init_app, hargs=(app, filesdb, entitiesdb, profiler))

    # Refresco de conexiones
    eventmanager.once(filesdb.load_servers_conn)
    eventmanager.interval(app.config["FOOCONN_UPDATE_INTERVAL"], filesdb.load_servers_conn)

    # Refresco de configuración
    eventmanager.once(configdb.pull)
    eventmanager.interval(app.config["CONFIG_UPDATE_INTERVAL"], configdb.pull)

    # downloader files
    downloader_files = app.config["DOWNLOADER_FILES"]
    base_path = os.path.abspath(os.path.join(app.root_path,"../downloads"))
    def update_downloader_properties():
        '''
        Downloader updated.
        '''
        local_cache["downloader_properties"] = get_downloader_properties(base_path, downloader_files)

    configdb.register_action("update_downloader", update_downloader_properties)
    local_cache["downloader_properties"] = get_downloader_properties(base_path, downloader_files)

    # Unittesting
    unit.init_app(app)

    # Inicializa
    init_labs(app)

    if app.config["UNITTEST_INTERVAL"]:
        eventmanager.timeout(20, unit.run_tests)
        #eventmanager.interval(current_app.config["UNITTEST_INTERVAL"], unit.run_tests)

    # IPs españolas
    spanish_ips.load(os.path.join(os.path.dirname(app.root_path),app.config["SPANISH_IPS_FILENAME"]))

    @app.before_request
    def before_request():

        # No preprocesamos la peticiones a static
        if request.path.startswith("/static"):
            g.accept_cookies = None
            return

        # default values for g object
        init_g()

        # comprueba limite de ratio de peticiones
        check_rate_limit(g.search_bot)

        # si el idioma de la URL es inválido, devuelve página no encontrada
        all_langs = current_app.config["ALL_LANGS"]
        if g.url_lang and not g.url_lang in all_langs:
            abort(404)

        # añade idioma por defecto si no hay traducción de algún mensaje en el idioma actual
        if g.lang!="en":
            add_translation_fallback("en")

        # si hay que cambiar el idioma
        if request.args.get("setlang",None):
            session["lang"]=g.lang
            # si el idioma esta entre los permitidos y el usuario esta logueado se actualiza en la base de datos
            if g.lang in all_langs and current_user.is_authenticated():
                current_user.set_lang(g.lang)
                usersdb.update_user({"_id":current_user.id,"lang":g.lang})

            return redirect(request.base_url)

        g.keywords = set(_(keyword) for keyword in ['download', 'watch', 'files', 'submit_search', 'audio', 'video', 'image', 'document', 'software', 'P2P', 'direct_downloads'])
        descr = _("about_text")
        g.page_description = descr[:descr.find("<br")]

        # ignora peticiones sin blueprint
        if request.blueprint is None and request.path.endswith("/"):
            if "?" in request.url:
                root = request.url_root[:-1]
                path = request.path.rstrip("/")
                query = u(request.url)
                query = query[query.find(u"?"):]
                return redirect(root+path+query, 301)
            return redirect(request.url.rstrip("/"), 301)

    @app.after_request
    def after_request(response):
        if request.user_agent.browser == "msie": response.headers["X-UA-Compatible"] = "IE=edge"

        if g.accept_cookies == "0":
            response.set_cookie("ck", "2", expires=datetime.datetime.now() + datetime.timedelta(3650))
        return response

    # Páginas de error
    @allerrors(app, 400, 401, 403, 404, 405, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 429, 500, 501, 502, 503)
    def all_errors(e):
        error_code, error_title, error_description = get_error_code_information(e)
        try:
            init_g()
            g.page_description = g.title = "%d %s" % (error_code, error_title)
            return render_template('error.html', zone="error", error=error_code, description=error_description, search_form=SearchForm()), error_code
        except BaseException as ex: #si el error ha llegado sin contexto se encarga el servidor de él
            logging.warn(ex)
            return make_response("", error_code)

    return app
Example #3
0
File: web.py Project: Desala/appweb
def create_app(config=None, debug=False):
    '''
    Inicializa la aplicación Flask. Carga los siguientes módulos:
     - index: página de inicio
     - page: páginas estáticas
     - user: gestión del usuario
     - files: búsqueda y obtención de ficheros
     - status: servicio de monitorización de la aplicación

    Y además, inicializa los siguientes servicios:
     - Configuración: carga valores por defecto y modifica con el @param config
     - Web Assets: compilación y compresión de recursos estáticos
     - i18n: detección de idioma en la URL y catálogos de mensajes
     - Cache y auth: Declarados en el módulo services
     - Files: Clases para acceso a datos
    '''
    app = Flask(__name__)
    app.config.from_object(defaults)
    app.debug = debug

    # Configuración
    if config:
        app.config.from_object(config)

    # Modo de appweb
    appmode = app.config["APPWEB_MODE"]

    # Gestión centralizada de errores
    if app.config["SENTRY_DSN"]:
        sentry.init_app(app)
    logging.getLogger().setLevel(logging.DEBUG if debug else logging.INFO)

    # Configuración dependiente de la versión del código
    revision_filename_path = os.path.join(os.path.dirname(app.root_path), "revision")
    if os.path.exists(revision_filename_path):
        f = open(revision_filename_path, "r")
        data = f.read()
        f.close()
        revisions = tuple(
            tuple(i.strip() for i in line.split("#")[0].split())
            for line in data.strip().split("\n")
            if line.strip() and not line.strip().startswith("#"))
        revision_hash = md5(data).hexdigest()
        app.config.update(
            CACHE_KEY_PREFIX = "%s%s/" % (
                app.config["CACHE_KEY_PREFIX"] if "CACHE_KEY_PREFIX" in app.config else "",
                revision_hash
                ),
            REVISION_HASH = revision_hash,
            REVISION = revisions
            )
    else:
        app.config.update(
            REVISION_HASH = None,
            REVISION = ()
            )

    # Registra filtros de plantillas
    register_filters(app)

    # Registra valores/funciones para plantillas
    app.jinja_env.globals["u"] = u

    # proteccion CSRF
    csrf.init_app(app)

    # Blueprints
    if appmode == "search":
        app.register_blueprint(files)
    elif appmode == "extras":
        app.register_blueprint(extras)
    else:
        logging.error("No se ha especificado modo en la configuración. Blueprints sin cargar.")

    # Web Assets
    dir_static = app.static_folder  # shortcut
    scss.config.LOAD_PATHS = [os.path.abspath('%s/../..' % dir_static)]

    for subdir in ['%s/%s' % (dir_static, x) for x in ['gen', 'torrents/gen']]:
        if not os.path.isdir(subdir):
            os.makedirs(subdir)

    app.assets = Environment(app)
    app.assets.debug = app.debug
    app.assets.versions = "hash"

    register_filter(JsSlimmer)
    register_filter(CssSlimmer)

    app.assets.register(
        'css_torrents',
        Bundle('torrents/css/torrents.scss',
               filters='pyscss', output='torrents/gen/torrents.css', debug=False),
        filters='css_slimmer', output='torrents/gen/torrents.css')

    if appmode == "search":
        app.assets.register(
            'js_appweb',
            Bundle('prototype.js', 'event.simulate.js', 'chosen.proto.min.js','appweb.js',
                   filters='rjsmin', output='gen/appweb.js'))
    else:
        app.assets.register(
            'js_appweb',
            Bundle('prototype.js', filters='rjsmin', output='gen/appweb.js'))

    # Traducciones
    babel.init_app(app)

    @babel.localeselector
    def get_locale():
        return "en"

    # Autenticación
    auth.setup_app(app)
    auth.user_loader(User.current_user)
    auth.anonymous_user = User.current_user

    # Cache
    cache.init_app(app)

    # Acceso a bases de datos
    filesdb.init_app(app)
    pagesdb.init_app(app)
    feedbackdb.init_app(app)
    entitiesdb.init_app(app)
    usersdb.init_app(app)
    plugindb.init_app(app)

    # Servicio de búsqueda
    @app.before_first_request
    def init_process():
        if not eventmanager.is_alive():
            # Fallback inicio del eventManager
            eventmanager.start()

    # Profiler
    profiler.init_app(app, feedbackdb)

    eventmanager.once(searchd.init_app, hargs=(app, filesdb, entitiesdb, profiler))

    # Refresco de conexiones
    eventmanager.once(filesdb.load_servers_conn)
    eventmanager.interval(app.config["FOOCONN_UPDATE_INTERVAL"], filesdb.load_servers_conn)
    eventmanager.interval(app.config["FOOCONN_UPDATE_INTERVAL"], entitiesdb.connect)

    @app.url_value_preprocessor
    def pull_lang_code(endpoint, values):
        if values is None:
            g.lang = "en"
        else:
            g.lang = values.pop('lang', "en")

    @app.url_defaults
    def add_language_code(endpoint, values):
        if not 'lang' in values and app.url_map.is_endpoint_expecting(endpoint, 'lang'):
            values['lang'] = g.lang

    @app.before_request
    def before_request():
        # No preprocesamos la peticiones a static
        if request.path.startswith("/static/"):
            return

        init_g(app)

        # ignora peticiones sin blueprint
        if request.blueprint is None and len(request.path)>1 and request.path.endswith("/"):
            if "?" in request.url:
                root = request.url_root[:-1]
                path = request.path.rstrip("/")
                query = request.url.decode("utf-8")
                query = query[query.find(u"?"):]
                return redirect(root+path+query, 301)
            return redirect(request.url.rstrip("/"), 301)


    @app.after_request
    def after_request(response):
        response.headers["X-UA-Compatible"] = "IE=edge"
        return response

    # Páginas de error
    errors = {
        404: ("Page not found", "The requested address does not exists."),
        410: ("Page not available", "The requested address is no longer available."),
        500: ("An error happened", "We had some problems displaying this page. Maybe later we can show it to you."),
        503: ("Service unavailable", "This page is temporarily unavailable. Please try again later.")
    }

    @allerrors(app, 400, 401, 403, 404, 405, 408, 409, 410, 411, 412, 413,
                   414, 415, 416, 417, 418, 500, 501, 502, 503)
    def all_errors(e):
        error = e.code if hasattr(e,"code") else 500
        title, description = errors[error if error in errors else 500]
        init_g(app)
        return render_template('error.html', code=str(error), title=title,
                               description=description), error

    return app
Example #4
0
File: web.py Project: Desala/www
def create_app(config=None, debug=False):
    '''
    Inicializa la aplicación Flask. Carga los siguientes módulos:
     - index: página de inicio
     - page: páginas estáticas
     - user: gestión del usuario
     - files: búsqueda y obtención de ficheros
     - status: servicio de monitorización de la aplicación

    Y además, inicializa los siguientes servicios:
     - Configuración: carga valores por defecto y modifica con el @param config
     - Web Assets: compilación y compresión de recursos estáticos
     - i18n: detección de idioma en la URL y catálogos de mensajes
     - Cache y auth: Declarados en el módulo services
     - Files: Clases para acceso a datos
    '''
    app = Flask(__name__)
    app.config.from_object(defaults)
    app.debug = debug
    app.session_interface = NoSessionInterface()

    # Configuración
    if config:
        app.config.from_object(config)

    # Runtime config
    app.config["DOWNLOADER_FILES"] = {
        k: os.path.join(os.path.abspath(os.path.join(app.root_path,"../downloads")), v)
        for k, v in app.config["DOWNLOADER_FILES"].iteritems()
        }

    # Gestión centralizada de errores
    if app.config["SENTRY_DSN"]:
        sentry.init_app(app)
    logging.getLogger().setLevel(logging.DEBUG if debug else logging.INFO)

    # Configuración dependiente de la versión del código
    revision_filename_path = os.path.join(os.path.dirname(app.root_path), "revision")
    if os.path.exists(revision_filename_path):
        f = open(revision_filename_path, "r")
        data = f.read()
        f.close()
        revisions = tuple(
            tuple(i.strip() for i in line.split("#")[0].split())
            for line in data.strip().split("\n")
            if line.strip() and not line.strip().startswith("#"))
        revision_hash = md5(data).hexdigest()
        app.config.update(
            CACHE_KEY_PREFIX = "%s%s/" % (
                app.config["CACHE_KEY_PREFIX"] if "CACHE_KEY_PREFIX" in app.config else "",
                revision_hash
                ),
            REVISION_HASH = revision_hash,
            REVISION = revisions
            )
    else:
        app.config.update(
            REVISION_HASH = None,
            REVISION = ()
            )


    # Registra valores/funciones para plantillas
    app.jinja_env.globals["u"] = u

    # Blueprints
    print "Registering blueprints."
    app.register_blueprint(index)
    register_files_converters(app)
    app.register_blueprint(news)
    app.register_blueprint(files)
    for blueprint in downloader_blueprints:
        app.register_blueprint(blueprint)

    # Registra filtros de plantillas
    register_filters(app)

    # Web Assets
    print "Web assets."
    if not os.path.isdir(app.static_folder+"/gen"): os.mkdir(app.static_folder+"/gen")
    assets = Environment(app)
    app.assets = assets
    assets.debug = app.debug
    assets.versions = "timestamp"

    register_filter(JsSlimmer)
    register_filter(CssSlimmer)

    assets.register('css_torrents', Bundle('main.css', 'jquery.treeview.css', filters='pyscss', output='gen/main.css', debug=False), '960_24_col.css', filters='css_slimmer', output='gen/torrents.css')
    assets.register('js_torrents', Bundle('modernizr.js', 'jquery.js', 'jquery.treeview.js', 'jquery.cookie.js', 'jquery.colorbox-min.js', 'torrents.js', 'cookies.js', filters='rjsmin', output='gen/torrents.js'), )

    print "Initializing services."
    # CSRF protection
    csrf.init_app(app)

    # Traducciones
    babel.init_app(app)

    @babel.localeselector
    def get_locale():
        return "en"

    # Cache
    cache.init_app(app)

    # Mail
    mail.init_app(app)


    print "Database accesses:"
    # Acceso a bases de datos
    filesdb.init_app(app)
    print "* files"
    torrentsdb.init_app(app, searchd)
    print "* torrents"

    pagesdb.init_app(app)
    print "* pages"
    #feedbackdb.init_app(app)
    #print "* feedback"
    configdb.init_app(app)
    print "* config"
    entitiesdb.init_app(app)
    print "* entities"

    for service_name, params in app.config["DATA_SOURCE_SHARING"].iteritems():
        eval(service_name).share_connections(**{key:eval(value) for key, value in params.iteritems()})

    configdb.register_action("flush_cache", cache.clear, _unique=True)

    print "Blacklists."
    # Blacklists
    if app.debug:
        blacklists.debug=True

    blacklist_data = torrentsdb.get_blacklists()
    blacklists.load_data(blacklist_data)
    blacklists.clone_into(blacklists_adult, lambda x:x!="misconduct")

    def refresh_blacklists():
        '''
        Refresh blacklists.
        '''
        blacklists.load_data(torrentsdb.get_blacklists())

    configdb.register_action("refresh_blacklists", refresh_blacklists)

    def update_downloader_properties():
        '''
        Downloader updated.
        '''
        local_cache["downloader_properties"] = get_downloader_properties()

    configdb.register_action("update_downloader", update_downloader_properties)
    with app.app_context():
        local_cache["downloader_properties"] = get_downloader_properties()

    # IPs españolas
    spanish_ips.load(os.path.join(os.path.dirname(app.root_path),app.config["SPANISH_IPS_FILENAME"]))

    @app.before_first_request
    def init_process():
        if not eventmanager.is_alive():
            # Fallback inicio del eventManager
            eventmanager.start()
    print "Event manager."

    # Profiler
    # profiler.init_app(app, feedbackdb)

    # Servicio de búsqueda
    eventmanager.once(searchd.init_app, hargs=(app, filesdb, entitiesdb, profiler))

    # Refresco de conexiones
    eventmanager.once(filesdb.load_servers_conn)
    eventmanager.interval(app.config["FOOCONN_UPDATE_INTERVAL"], filesdb.load_servers_conn)

    # Refresco de configuración
    eventmanager.once(configdb.pull)
    eventmanager.interval(app.config["CONFIG_UPDATE_INTERVAL"], configdb.pull)

    # Categorias
    categories_cache.init_app(app.config["TORRENTS_CATEGORIES"], app.config["SUBCATEGORIES_MIN_OCCURS"])
    categories_cache.update_subcategories(torrentsdb.get_subcategories())

    def refresh_subcategories():
        '''
        Refresh subcategories.
        '''
        categories_cache.update_subcategories(torrentsdb.get_subcategories())
    configdb.register_action("refresh_subcategories", refresh_subcategories)
    eventmanager.interval(app.config["CATEGORIES_REFRESH_INTERVAL"], refresh_subcategories)

    @app.before_request
    def before_request():
        g.cache_code = ""
        g.last_modified = None

        # No preprocesamos la peticiones a static
        if request.path.startswith("/static/"):
            g.must_cache = False
            return

        g.blacklisted_content = False
        init_g(current_app)

        if not g.domain:
            return multidomain.redirect_to_domain(g.domains_family[0], 301)

        # ignora peticiones sin blueprint
        if request.blueprint is None and request.path.endswith("/"):
            if "?" in request.url:
                root = request.url_root[:-1]
                path = request.path.rstrip("/")
                query = request.url
                if not isinstance(query, unicode):
                    query = query.decode("utf-8")
                query = query[query.find(u"?"):]
                return redirect(root+path+query, 301)
            return redirect(request.url.rstrip("/"), 301)


    @app.after_request
    def after_request(response):
        if request.user_agent.browser == "msie": response.headers["X-UA-Compatible"] = "IE-edge"
        if g.must_cache:
            response.headers["X-Cache-Control"] = "max-age=%d"%g.must_cache
        if g.cache_code:
            response.headers["X-Cache-Code"] = g.cache_code
        if g.last_modified:
            response.headers["Last-Modified"] = utils.formatdate(time.mktime(max(g.last_modified, current_app.config["APP_LAST_MODIFIED"]).timetuple()), False, True)
        return response

    # Páginas de error
    errors = {
        404: ("Page not found", "The requested address does not exists."),
        410: ("File not available", "The file you are trying to access has been removed."),
        500: ("An error happened", "We had some problems displaying this page. Maybe later we can show it to you."),
        503: ("Service unavailable", "This page is temporarily unavailable. Please try again later.")
    }

    @allerrors(app, 400, 401, 403, 404, 405, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 500, 501, 502, 503)
    def all_errors(e):
        error = e.code if hasattr(e,"code") else 500
        title, description = errors[error if error in errors else 500]

        init_g(current_app)
        if not g.domain:
            return multidomain.redirect_to_domain(g.domains_family[0], 301)

        g.title.append(title)
        return render_template('error.html', code=str(error), title=title, description=description), error

    print "App ready."
    return app