Python GenericForm.get_value方法代码示例

# 需要导入模块: from slybot.generic_form import GenericForm [as 别名]
# 或者: from slybot.generic_form.GenericForm import get_value [as 别名]
class IblSpider(Spider):

    def __init__(self, name, spec, item_schemas, all_extractors, settings=None,
                 **kw):
        super(IblSpider, self).__init__(name, **kw)
        self._job_id = settings.get('JOB', '')
        spec = deepcopy(spec)
        for key, val in kw.items():
            if isinstance(val, six.string_types) and key in STRING_KEYS:
                val = val.splitlines()
            spec[key] = val

        self._item_template_pages = sorted(
            ((t['scrapes'], t) for t in spec['templates']
             if t.get('page_type', 'item') == 'item'), key=itemgetter(0))

        self._templates = [templ for _, templ in self._item_template_pages]

        self.plugins = IndexedDict()
        for plugin_class, plugin_name in zip(load_plugins(settings),
                                             load_plugin_names(settings)):
            instance = plugin_class()
            instance.setup_bot(settings, spec, item_schemas, all_extractors)
            self.plugins[plugin_name] = instance

        self.js_enabled = False
        self.SPLASH_HOST = None
        if settings.get('SPLASH_URL'):
            self.SPLASH_HOST = urlparse(settings.get('SPLASH_URL')).hostname
            self.js_enabled = spec.get('js_enabled', False)
        if self.js_enabled and (settings.get('SPLASH_PASS') is not None or
                                settings.get('SPLASH_USER') is not None):
            self.splash_auth = basic_auth_header(
                settings.get('SPLASH_USER', ''),
                settings.get('SPLASH_PASS', ''))
        self._filter_js_urls = self._build_js_url_filter(spec)
        self.login_requests = []
        self.form_requests = []
        self._start_requests = []
        self.generic_form = GenericForm(**kw)
        self._create_init_requests(spec.get("init_requests", []))
        self._process_start_urls(spec)
        self.allowed_domains = spec.get(
            'allowed_domains',
            self._get_allowed_domains(self._templates)
        )
        if not self.allowed_domains:
            self.allowed_domains = None

    def _process_start_urls(self, spec):
        self.start_urls = spec.get('start_urls')
        for url in self.start_urls:
            request = Request(url, callback=self.parse, dont_filter=True)
            self._add_splash_meta(request)
            self._start_requests.append(request)

    def _create_init_requests(self, spec):
        for rdata in spec:
            if rdata["type"] == "login":
                request = Request(url=rdata.pop("loginurl"), meta=rdata,
                                  callback=self.parse_login_page,
                                  dont_filter=True)
                self._add_splash_meta(request)
                self.login_requests.append(request)
            elif rdata["type"] == "form":
                self.form_requests.append(
                    self.get_generic_form_start_request(rdata)
                )
            elif rdata["type"] == "start":
                self._start_requests.append(
                    self._create_start_request_from_specs(rdata)
                )

    def parse_login_page(self, response):
        username = response.request.meta["username"]
        password = response.request.meta["password"]
        args, url, method = fill_login_form(response.url, response.body,
                                            username, password)
        return FormRequest(url, method=method, formdata=args,
                           callback=self.after_login, dont_filter=True)

    def after_login(self, response):
        for result in self.parse(response):
            yield result
        for req in self._start_requests:
            yield req

    def get_generic_form_start_request(self, form_descriptor):
        file_fields = list(self.generic_form.get_url_field(form_descriptor))
        if file_fields:
            (field_index, field_descriptor) = file_fields.pop(0)
            form_descriptor['field_index'] = field_index
            return FormRequest(self.generic_form.get_value(field_descriptor),
                               meta=form_descriptor,
                               callback=self.parse_field_url_page,
                               dont_filter=True)
        else:
            return Request(url=form_descriptor.pop("form_url"),
                           meta=form_descriptor, callback=self.parse_form_page,
                           dont_filter=True)
#.........这里部分代码省略.........

# 需要导入模块: from slybot.generic_form import GenericForm [as 别名]
# 或者: from slybot.generic_form.GenericForm import get_value [as 别名]
class IblSpider(BaseSpider):

    def __init__(self, name, spec, item_schemas, all_extractors, **kw):
        super(IblSpider, self).__init__(name, **kw)

        self._item_template_pages = sorted((
            [t['scrapes'], dict_to_page(t, 'annotated_body'),
            t.get('extractors', [])] \
            for t in spec['templates'] if t.get('page_type', 'item') == 'item'
        ), key=lambda pair: pair[0])

        # generate ibl extractor for links pages
        _links_pages = [dict_to_page(t, 'annotated_body')
                for t in spec['templates'] if t.get('page_type') == 'links']
        _links_item_descriptor = create_slybot_item_descriptor({'fields': {}})
        self._links_ibl_extractor = InstanceBasedLearningExtractor([(t, _links_item_descriptor) for t in _links_pages]) \
                if _links_pages else None

        self._ipages = [page for _, page, _ in self._item_template_pages]

        self.html_link_extractor = HtmlLinkExtractor()
        self.rss_link_extractor = RssLinkExtractor()
        self.build_url_filter(spec)

        self.itemcls_info = {}
        for itemclass_name, triplets in itertools.groupby(self._item_template_pages, operator.itemgetter(0)):
            page_extractors_pairs = map(operator.itemgetter(1, 2), triplets)
            schema = item_schemas[itemclass_name]
            item_cls = SlybotItem.create_iblitem_class(schema)

            page_descriptor_pairs = []
            for page, template_extractors in page_extractors_pairs:
                item_descriptor = create_slybot_item_descriptor(schema)
                apply_extractors(item_descriptor, template_extractors, all_extractors)
                page_descriptor_pairs.append((page, item_descriptor))

            extractor = InstanceBasedLearningExtractor(page_descriptor_pairs)

            self.itemcls_info[itemclass_name] = {
                'class': item_cls,
                'descriptor': item_descriptor,
                'extractor': extractor,
            }

        self.login_requests = []
        self.form_requests = []
        self._start_requests = []
        self.generic_form = GenericForm(**kw)
        self._create_init_requests(spec.get("init_requests", []))
        self._process_start_urls(spec)
        self.allowed_domains = spec.get('allowed_domains',
                                        self._get_allowed_domains(self._ipages))
        if not self.allowed_domains:
            self.allowed_domains = None

    def _process_start_urls(self, spec):
        self.start_urls = self.start_urls or spec.get('start_urls')
        if isinstance(self.start_urls, basestring):
            self.start_urls = self.start_urls.splitlines()
        for url in self.start_urls:
            self._start_requests.append(Request(url, callback=self.parse, dont_filter=True))

    def _create_init_requests(self, spec):
        for rdata in spec:
            if rdata["type"] == "login":
                request = Request(url=rdata.pop("loginurl"), meta=rdata,
                                  callback=self.parse_login_page, dont_filter=True)
                self.login_requests.append(request)
            elif rdata["type"] == "form":
                self.form_requests.append(self.get_generic_form_start_request(rdata))
            elif rdata["type"] == "start":
                self._start_requests.append(self._create_start_request_from_specs(rdata))

    def parse_login_page(self, response):
        username = response.request.meta["username"]
        password = response.request.meta["password"]
        args, url, method = fill_login_form(response.url, response.body, username, password)
        return FormRequest(url, method=method, formdata=args, callback=self.after_login, dont_filter=True)

    def after_login(self, response):
        for result in self.parse(response):
            yield result
        for req in self._start_requests:
            yield req

    def get_generic_form_start_request(self, form_descriptor):
        file_fields = list(self.generic_form.get_url_field(form_descriptor))
        if file_fields:
            (field_index, field_descriptor) = file_fields.pop(0)
            form_descriptor['field_index'] = field_index
            return FormRequest(self.generic_form.get_value(field_descriptor), meta=form_descriptor,
                              callback=self.parse_field_url_page, dont_filter=True)
        else:
            return Request(url=form_descriptor.pop("form_url"), meta=form_descriptor,
                                  callback=self.parse_form_page, dont_filter=True)

    def parse_field_url_page(self, response):
        form_descriptor = response.request.meta
        field_index = form_descriptor['field_index']
        field_descriptor = form_descriptor['fields'][field_index]
#.........这里部分代码省略.........

# 需要导入模块: from slybot.generic_form import GenericForm [as 别名]
# 或者: from slybot.generic_form.GenericForm import get_value [as 别名]
class IblSpider(Spider):

    def __init__(self, name, spec, item_schemas, all_extractors, settings=None,
                 **kw):
        super(IblSpider, self).__init__(name, **kw)
        spec = deepcopy(spec)
        for key, val in kw.items():
            if isinstance(val, basestring) and key in STRING_KEYS:
                val = val.splitlines()
            spec[key] = val

        self._item_template_pages = sorted(
            ((t['scrapes'], t) for t in spec['templates']
             if t.get('page_type', 'item') == 'item'), key=itemgetter(0))

        self._templates = [templ for _, templ in self._item_template_pages]

        self.plugins = IndexedDict()
        for plugin_class, plugin_name in zip(load_plugins(settings),
                                             load_plugin_names(settings)):
            instance = plugin_class()
            instance.setup_bot(settings, spec, item_schemas, all_extractors)
            self.plugins[plugin_name] = instance

        self.login_requests = []
        self.form_requests = []
        self._start_requests = []
        self.generic_form = GenericForm(**kw)
        self._create_init_requests(spec.get("init_requests", []))
        self._process_start_urls(spec)
        self.allowed_domains = spec.get(
            'allowed_domains',
            self._get_allowed_domains(self._templates)
        )
        if not self.allowed_domains:
            self.allowed_domains = None

    def _process_start_urls(self, spec):
        self.start_urls = spec.get('start_urls')
        for url in self.start_urls:
            self._start_requests.append(Request(url, callback=self.parse,
                                                dont_filter=True))

    def _create_init_requests(self, spec):
        for rdata in spec:
            if rdata["type"] == "login":
                request = Request(url=rdata.pop("loginurl"), meta=rdata,
                                  callback=self.parse_login_page,
                                  dont_filter=True)
                self.login_requests.append(request)
            elif rdata["type"] == "form":
                self.form_requests.append(
                    self.get_generic_form_start_request(rdata)
                )
            elif rdata["type"] == "start":
                self._start_requests.append(
                    self._create_start_request_from_specs(rdata)
                )

    def parse_login_page(self, response):
        username = response.request.meta["username"]
        password = response.request.meta["password"]
        args, url, method = fill_login_form(response.url, response.body,
                                            username, password)
        return FormRequest(url, method=method, formdata=args,
                           callback=self.after_login, dont_filter=True)

    def after_login(self, response):
        for result in self.parse(response):
            yield result
        for req in self._start_requests:
            yield req

    def get_generic_form_start_request(self, form_descriptor):
        file_fields = list(self.generic_form.get_url_field(form_descriptor))
        if file_fields:
            (field_index, field_descriptor) = file_fields.pop(0)
            form_descriptor['field_index'] = field_index
            return FormRequest(self.generic_form.get_value(field_descriptor),
                               meta=form_descriptor,
                               callback=self.parse_field_url_page,
                               dont_filter=True)
        else:
            return Request(url=form_descriptor.pop("form_url"),
                           meta=form_descriptor, callback=self.parse_form_page,
                           dont_filter=True)

    def parse_field_url_page(self, response):
        form_descriptor = response.request.meta
        field_index = form_descriptor['field_index']
        field_descriptor = form_descriptor['fields'][field_index]
        self.generic_form.set_values_url_field(field_descriptor, response.body)
        yield self.get_generic_form_start_request(form_descriptor)

    def parse_form_page(self, response):
        fill_form = self.generic_form.fill_generic_form
        try:
            for (args, url, method) in fill_form(response.url, response.body,
                                                 response.request.meta):
                yield FormRequest(url, method=method, formdata=args,
#.........这里部分代码省略.........

# 需要导入模块: from slybot.generic_form import GenericForm [as 别名]
# 或者: from slybot.generic_form.GenericForm import get_value [as 别名]
class IblSpider(SitemapSpider):
    def __init__(self, name, spec, item_schemas, all_extractors, settings=None,
                 **kw):
        self.start_url_generators = {
            'start_urls': IdentityGenerator(),
            'generated_urls': UrlGenerator(settings, kw),

            'url': IdentityGenerator(),
            'generated': FragmentGenerator(),
            # 'feed_urls': FeedUrls(self, settings, kw)
        }
        self.generic_form = GenericForm(**kw)
        super(IblSpider, self).__init__(name, **kw)
        spec = deepcopy(spec)
        self._add_spider_args_to_spec(spec, kw)
        self.plugins = self._configure_plugins(
            settings, spec, item_schemas, all_extractors)
        self._configure_js(spec, settings)

        self.login_requests, self.form_requests = [], []
        self._start_urls = self._create_start_urls(spec)
        self._start_requests = self._create_start_requests(spec)
        self._create_init_requests(spec)
        self._add_allowed_domains(spec)
        self.page_actions = spec.get('page_actions', [])

    def _add_spider_args_to_spec(self, spec, args):
        for key, val in args.items():
            if isinstance(val, six.string_types) and key in STRING_KEYS:
                val = val.splitlines()
            spec[key] = val

    def _create_start_urls(self, spec):
        url_type = spec.get('start_urls_type', 'start_urls')
        return StartUrlCollection(
            arg_to_iter(spec[url_type]),
            self.start_url_generators,
            url_type
        )

    def _create_start_requests(self, spec):
        init_requests = spec.get('init_requests', [])
        for rdata in init_requests:
            if rdata["type"] == "start":
                yield self._create_start_request_from_specs(rdata)

        for start_url in self._start_urls:
            if not isinstance(start_url, Request):
                start_url = Request(start_url, callback=self.parse,
                                    dont_filter=True)
            yield self._add_splash_meta(start_url)

    def _create_init_requests(self, spec):
        init_requests = spec.get('init_requests', [])
        for rdata in init_requests:
            if rdata["type"] == "login":
                request = Request(url=rdata.pop("loginurl"), meta=rdata,
                                  callback=self.parse_login_page,
                                  dont_filter=True)
                self._add_splash_meta(request)
                self.login_requests.append(request)
            elif rdata["type"] == "form":
                self.form_requests.append(
                    self.get_generic_form_start_request(rdata)
                )

    def _add_allowed_domains(self, spec):
        self.allowed_domains = spec.get('allowed_domains', [])
        if self.allowed_domains is not None and not self.allowed_domains:
            self.allowed_domains = self._get_allowed_domains(spec)

    def parse_login_page(self, response):
        username = response.request.meta["username"]
        password = response.request.meta["password"]
        args, url, method = fill_login_form(response.url, response.body,
                                            username, password)
        return FormRequest(url, method=method, formdata=args,
                           callback=self.after_login, dont_filter=True)

    def after_login(self, response):
        for result in self.parse(response):
            yield result
        for req in self._start_requests:
            yield req

    def get_generic_form_start_request(self, form_descriptor):
        file_fields = list(self.generic_form.get_url_field(form_descriptor))
        if file_fields:
            (field_index, field_descriptor) = file_fields.pop(0)
            form_descriptor['field_index'] = field_index
            return FormRequest(self.generic_form.get_value(field_descriptor),
                               meta=form_descriptor,
                               callback=self.parse_field_url_page,
                               dont_filter=True)
        else:
            return Request(url=form_descriptor.pop("form_url"),
                           meta=form_descriptor, callback=self.parse_form_page,
                           dont_filter=True)

    def parse_field_url_page(self, response):
#.........这里部分代码省略.........