# -*- coding:utf-8 -*- """ @Author : g1879 @Contact : g1879@qq.com """ from json import loads, JSONDecodeError from os.path import sep from re import findall, match from threading import Thread from time import perf_counter, sleep from urllib.parse import quote from .._base.base import BasePage from .._functions.locator import get_loc, is_loc from .._functions.settings import Settings from .._functions.tools import get_usable_path, raise_error from .._functions.web import location_in_viewport from .._elements.chromium_element import ChromiumElement, run_js, make_chromium_ele from .._elements.none_element import NoneElement from .._elements.session_element import make_session_ele from .._units.actions import Actions from .._units.listener import Listener from .._units.rect import TabRect from .._units.screencast import Screencast from .._units.scroller import PageScroller from .._units.setter import ChromiumBaseSetter from .._units.states import PageStates from .._units.waiter import BaseWaiter from ..errors import ContextLostError, ElementLostError, CDPError, PageClosedError, ElementNotFoundError __ERROR__ = 'error' class ChromiumBase(BasePage): """标签页、frame、页面基类""" def __init__(self, address, tab_id=None, timeout=None): """ :param address: 浏览器 ip:port :param tab_id: 要控制的标签页id,不指定默认为激活的 :param timeout: 超时时间 """ super().__init__() self._is_loading = None self._root_id = None # object id self._debug = False self._set = None self._screencast = None self._actions = None self._states = None self._has_alert = False self._ready_state = None self._rect = None self._wait = None self._scroll = None self._upload_list = None self._doc_got = False # 用于在LoadEventFired和FrameStoppedLoading间标记是否已获取doc self._download_path = None self._load_end_time = 0 if not hasattr(self, '_listener'): self._listener = None if isinstance(address, int) or (isinstance(address, str) and address.isdigit()): address = f'127.0.0.1:{address}' self._d_set_start_options(address) self._d_set_runtime_settings() self._connect_browser(tab_id) if timeout is not None: self.timeout = timeout def _d_set_start_options(self, address): """设置浏览器启动属性 :param address: 'ip:port' :return: None """ self.address = address.replace('localhost', '127.0.0.1').lstrip('http://').lstrip('https://') def _d_set_runtime_settings(self): self._timeouts = Timeout(self) self._load_mode = 'normal' def _connect_browser(self, tab_id=None): """连接浏览器,在第一次时运行 :param tab_id: 要控制的标签页id,不指定默认为激活的 :return: None """ self._is_reading = False if not tab_id: tabs = self.browser.driver.get(f'http://{self.address}/json').json() tabs = [(i['id'], i['url']) for i in tabs if i['type'] == 'page' and not i['url'].startswith('devtools://')] dialog = None if len(tabs) > 1: for k, t in enumerate(tabs): if t[1] == 'chrome://privacy-sandbox-dialog/notice': dialog = k elif not tab_id: tab_id = t[0] if tab_id and dialog is not None: break if dialog is not None: close_privacy_dialog(self, tabs[dialog][0]) else: tab_id = tabs[0][0] self._driver_init(tab_id) if self._js_ready_state == 'complete' and self._ready_state is None: self._get_document() self._ready_state = 'complete' if self._debug: print(f'{self._frame_id}在connect_browser变成complete') def _driver_init(self, tab_id): """新建页面、页面刷新、切换标签页后要进行的cdp参数初始化 :param tab_id: 要跳转到的标签页id :return: None """ self._is_loading = True self._driver = self.browser._get_driver(tab_id) self._alert = Alert() self._driver.set_callback('Page.javascriptDialogOpening', self._on_alert_open) self._driver.set_callback('Page.javascriptDialogClosed', self._on_alert_close) self._driver.run('DOM.enable') self._driver.run('Page.enable') self._driver.run('Emulation.setFocusEmulationEnabled', enabled=True) r = self.run_cdp('Page.getFrameTree') for i in findall(r"'id': '(.*?)'", str(r)): self.browser._frames[i] = self.tab_id if not hasattr(self, '_frame_id'): self._frame_id = r['frameTree']['frame']['id'] self._driver.set_callback('Page.frameStartedLoading', self._onFrameStartedLoading) self._driver.set_callback('Page.frameNavigated', self._onFrameNavigated) self._driver.set_callback('Page.domContentEventFired', self._onDomContentEventFired) self._driver.set_callback('Page.loadEventFired', self._onLoadEventFired) self._driver.set_callback('Page.frameStoppedLoading', self._onFrameStoppedLoading) self._driver.set_callback('Page.frameAttached', self._onFrameAttached) self._driver.set_callback('Page.frameDetached', self._onFrameDetached) def _get_document(self, timeout=10): """获取页面文档 :param timeout: 超时时间 :return: 是否获取成功 """ if self._debug: print('获取文档开始') if self._is_reading: return timeout = timeout if timeout >= .5 else .5 self._is_reading = True end_time = perf_counter() + timeout try: b_id = self.run_cdp('DOM.getDocument', _timeout=timeout)['root']['backendNodeId'] timeout = end_time - perf_counter() timeout = .5 if timeout < 0 else timeout self._root_id = self.run_cdp('DOM.resolveNode', backendNodeId=b_id, _timeout=timeout)['object']['objectId'] r = self.run_cdp('Page.getFrameTree') for i in findall(r"'id': '(.*?)'", str(r)): self.browser._frames[i] = self.tab_id if self._debug: print('获取文档结束') return True except: if self._debug: print('获取文档失败。') print('请把报错信息和重现方法告知作者,感谢。\nhttps://gitee.com/g1879/DrissionPage/issues/new') raise # return False finally: self._is_loading = False self._is_reading = False def _onFrameDetached(self, **kwargs): self.browser._frames.pop(kwargs['frameId'], None) def _onFrameAttached(self, **kwargs): self.browser._frames[kwargs['frameId']] = self.tab_id def _onFrameStartedLoading(self, **kwargs): """页面开始加载时执行""" self.browser._frames[kwargs['frameId']] = self.tab_id if kwargs['frameId'] == self._frame_id: if self._debug: print(f'{self._frame_id}触发FrameStartedLoading') print('在FrameStartedLoading变成loading') self._doc_got = False self._ready_state = 'connecting' self._is_loading = True self._load_end_time = perf_counter() + self.timeouts.page_load if self._load_mode == 'eager': t = Thread(target=self._wait_to_stop) t.daemon = True t.start() if self._debug: print(f'{self._frame_id}执行FrameStartedLoading完毕') def _onFrameNavigated(self, **kwargs): """页面跳转时执行""" if kwargs['frame']['id'] == self._frame_id: if self._debug: print(f'{self._frame_id}触发FrameNavigated') print('在FrameNavigated变成loading') self._doc_got = False self._ready_state = 'loading' self._is_loading = True if self._debug: print(f'>>> FrameNavigated {kwargs}') def _onDomContentEventFired(self, **kwargs): """在页面刷新、变化后重新读取页面内容""" if self._debug: print(f'{self._frame_id}触发DomContentEventFired') print('在DomContentEventFired变成interactive') if self._load_mode == 'eager': self.run_cdp('Page.stopLoading') self._get_document(self._load_end_time - perf_counter() - .1) self._doc_got = True self._ready_state = 'interactive' if self._debug: print(f'{self._frame_id}执行DomContentEventFired完毕') def _onLoadEventFired(self, **kwargs): """在页面刷新、变化后重新读取页面内容""" if self._debug: print(f'{self._frame_id}触发LoadEventFired') print('在LoadEventFired变成complete') if self._doc_got is False: self._get_document(self._load_end_time - perf_counter() - .1) self._doc_got = True self._ready_state = 'complete' if self._debug: print(f'{self._frame_id}执行LoadEventFired完毕') def _onFrameStoppedLoading(self, **kwargs): """页面加载完成后执行""" self.browser._frames[kwargs['frameId']] = self.tab_id if kwargs['frameId'] == self._frame_id: if self._debug: print(f'{self._frame_id}触发FrameStoppedLoading') print('在FrameStoppedLoading变成complete') if self._doc_got is False: self._get_document(self._load_end_time - perf_counter() - .1) self._ready_state = 'complete' if self._debug: print(f'{self._frame_id}执行FrameStoppedLoading完毕') def _onFileChooserOpened(self, **kwargs): """文件选择框打开时执行""" if self._upload_list: if 'backendNodeId' not in kwargs: raise TypeError('该输入框无法接管,请改用对元素输入路径的方法设置。') files = self._upload_list if kwargs['mode'] == 'selectMultiple' else self._upload_list[:1] self.run_cdp('DOM.setFileInputFiles', files=files, backendNodeId=kwargs['backendNodeId']) self.driver.set_callback('Page.fileChooserOpened', None) self.run_cdp('Page.setInterceptFileChooserDialog', enabled=False) self._upload_list = None def __call__(self, loc_or_str, timeout=None): """在内部查找元素 例:ele = page('@id=ele_id') :param loc_or_str: 元素的定位信息,可以是loc元组,或查询字符串 :param timeout: 超时时间 :return: ChromiumElement对象 """ return self.ele(loc_or_str, timeout) def _wait_to_stop(self): """eager策略超时时使页面停止加载""" end_time = perf_counter() + self.timeouts.page_load while perf_counter() < end_time: sleep(.1) if self._ready_state in ('interactive', 'complete') and self._is_loading: self.stop_loading() # ----------挂件---------- @property def wait(self): """返回用于等待的对象""" if self._wait is None: self._wait = BaseWaiter(self) return self._wait @property def set(self): """返回用于等待的对象""" if self._set is None: self._set = ChromiumBaseSetter(self) return self._set @property def screencast(self): """返回用于录屏的对象""" if self._screencast is None: self._screencast = Screencast(self) return self._screencast @property def actions(self): """返回用于执行动作链的对象""" if self._actions is None: self._actions = Actions(self) self.wait.load_complete() return self._actions @property def listen(self): """返回用于聆听数据包的对象""" if self._listener is None: self._listener = Listener(self) return self._listener @property def states(self): """返回用于获取状态信息的对象""" if self._states is None: self._states = PageStates(self) return self._states @property def scroll(self): """返回用于滚动滚动条的对象""" self.wait.load_complete() if self._scroll is None: self._scroll = PageScroller(self) return self._scroll @property def rect(self): """返回获取窗口坐标和大小的对象""" # self.wait.load_complete() if self._rect is None: self._rect = TabRect(self) return self._rect @property def timeouts(self): """返回timeouts设置""" return self._timeouts # ----------挂件---------- @property def browser(self): return self._browser @property def driver(self): """返回用于控制浏览器的ChromiumDriver对象""" if self._driver is None: raise RuntimeError('浏览器已关闭或链接已断开。') return self._driver @property def title(self): """返回当前页面title""" return self.run_cdp_loaded('Target.getTargetInfo', targetId=self._target_id)['targetInfo']['title'] @property def url(self): """返回当前页面url""" return self.run_cdp_loaded('Target.getTargetInfo', targetId=self._target_id)['targetInfo']['url'] @property def _browser_url(self): """用于被WebPage覆盖""" return self.url @property def html(self): """返回当前页面html文本""" self.wait.load_complete() return self.run_cdp('DOM.getOuterHTML', objectId=self._root_id)['outerHTML'] @property def json(self): """当返回内容是json格式时,返回对应的字典,非json格式时返回None""" try: return loads(self('t:pre', timeout=.5).text) except JSONDecodeError: return None @property def tab_id(self): """返回当前标签页id""" return self._target_id @property def _target_id(self): """返回当前标签页id""" return self.driver.id if not self.driver._stopped.is_set() else '' @property def active_ele(self): """返回当前焦点所在元素""" return self.run_js_loaded('return document.activeElement;') @property def load_mode(self): """返回页面加载策略,有3种:'none'、'normal'、'eager'""" return self._load_mode @property def user_agent(self): """返回user agent""" return self.run_cdp('Runtime.evaluate', expression='navigator.userAgent;')['result']['value'] @property def upload_list(self): """返回等待上传文件列表""" return self._upload_list @property def _js_ready_state(self): """返回js获取的ready state信息""" try: return self.run_cdp('Runtime.evaluate', expression='document.readyState;', _timeout=3)['result']['value'] except ContextLostError: return None except TimeoutError: return 'timeout' def run_cdp(self, cmd, **cmd_args): """执行Chrome DevTools Protocol语句 :param cmd: 协议项目 :param cmd_args: 参数 :return: 执行的结果 """ r = self.driver.run(cmd, **cmd_args) return r if __ERROR__ not in r else raise_error(r) def run_cdp_loaded(self, cmd, **cmd_args): """执行Chrome DevTools Protocol语句,执行前等待页面加载完毕 :param cmd: 协议项目 :param cmd_args: 参数 :return: 执行的结果 """ self.wait.load_complete() return self.run_cdp(cmd, **cmd_args) def run_js(self, script, *args, as_expr=False, timeout=None): """运行javascript代码 :param script: js文本 :param args: 参数,按顺序在js文本中对应arguments[0]、arguments[1]... :param as_expr: 是否作为表达式运行,为True时args无效 :param timeout: js超时时间,为None则使用页面timeouts.script设置 :return: 运行的结果 """ return run_js(self, script, as_expr, self.timeouts.script if timeout is None else timeout, args) def run_js_loaded(self, script, *args, as_expr=False, timeout=None): """运行javascript代码,执行前等待页面加载完毕 :param script: js文本 :param args: 参数,按顺序在js文本中对应arguments[0]、arguments[1]... :param as_expr: 是否作为表达式运行,为True时args无效 :param timeout: js超时时间,为None则使用页面timeouts.script设置 :return: 运行的结果 """ self.wait.load_complete() return run_js(self, script, as_expr, self.timeouts.script if timeout is None else timeout, args) def run_async_js(self, script, *args, as_expr=False, timeout=None): """以异步方式执行js代码 :param script: js文本 :param args: 参数,按顺序在js文本中对应arguments[0]、arguments[1]... :param as_expr: 是否作为表达式运行,为True时args无效 :param timeout: js超时时间,为None则使用页面timeouts.script设置 :return: None """ from threading import Thread Thread(target=run_js, args=(self, script, as_expr, self.timeouts.script if timeout is None else timeout, args)).start() def get(self, url, show_errmsg=False, retry=None, interval=None, timeout=None): """访问url :param url: 目标url :param show_errmsg: 是否显示和抛出异常 :param retry: 重试次数 :param interval: 重试间隔(秒) :param timeout: 连接超时时间 :return: 目标url是否可用 """ retry, interval = self._before_connect(url, retry, interval) self._url_available = self._d_connect(self._url, times=retry, interval=interval, show_errmsg=show_errmsg, timeout=timeout) return self._url_available def get_cookies(self, as_dict=False, all_domains=False, all_info=False): """获取cookies信息 :param as_dict: 为True时返回由{name: value}键值对组成的dict,为True时返回list且all_info无效 :param all_domains: 是否返回所有域的cookies :param all_info: 是否返回所有信息,为False时只返回name、value、domain :return: cookies信息 """ txt = 'Storage' if all_domains else 'Network' cookies = self.run_cdp_loaded(f'{txt}.getCookies')['cookies'] if as_dict: return {cookie['name']: cookie['value'] for cookie in cookies} elif all_info: return cookies else: return [{'name': cookie['name'], 'value': cookie['value'], 'domain': cookie['domain']} for cookie in cookies] def ele(self, loc_or_ele, timeout=None): """获取第一个符合条件的元素对象 :param loc_or_ele: 定位符或元素对象 :param timeout: 查找超时时间 :return: ChromiumElement对象 """ return self._ele(loc_or_ele, timeout=timeout, method='ele()') def eles(self, loc_or_str, timeout=None): """获取所有符合条件的元素对象 :param loc_or_str: 定位符或元素对象 :param timeout: 查找超时时间 :return: ChromiumElement对象组成的列表 """ return self._ele(loc_or_str, timeout=timeout, single=False) def s_ele(self, loc_or_ele=None): """查找第一个符合条件的元素以SessionElement形式返回,处理复杂页面时效率很高 :param loc_or_ele: 元素的定位信息,可以是loc元组,或查询字符串 :return: SessionElement对象或属性、文本 """ r = make_session_ele(self, loc_or_ele) if isinstance(r, NoneElement): if Settings.raise_when_ele_not_found: raise ElementNotFoundError(None, 's_ele()', {'loc_or_ele': loc_or_ele}) else: r.method = 's_ele()' r.args = {'loc_or_ele': loc_or_ele} return r def s_eles(self, loc_or_str): """查找所有符合条件的元素以SessionElement列表形式返回 :param loc_or_str: 元素的定位信息,可以是loc元组,或查询字符串 :return: SessionElement对象组成的列表 """ return make_session_ele(self, loc_or_str, single=False) def _find_elements(self, loc_or_ele, timeout=None, single=True, relative=False, raise_err=None): """执行元素查找 :param loc_or_ele: 定位符或元素对象 :param timeout: 查找超时时间 :param single: 是否只返回第一个 :param relative: WebPage用的表示是否相对定位的参数 :param raise_err: 找不到元素是是否抛出异常,为None时根据全局设置 :return: ChromiumElement对象或元素对象组成的列表 """ if isinstance(loc_or_ele, (str, tuple)): loc = get_loc(loc_or_ele)[1] elif isinstance(loc_or_ele, ChromiumElement) or str(type(loc_or_ele)).endswith(".ChromiumFrame'>"): return loc_or_ele else: raise ValueError('loc_or_str参数只能是tuple、str、ChromiumElement类型。') ok = False nodeIds = None timeout = timeout if timeout is not None else self.timeout end_time = perf_counter() + timeout try: search_result = self.run_cdp_loaded('DOM.performSearch', query=loc, includeUserAgentShadowDOM=True) count = search_result['resultCount'] except ContextLostError: search_result = None count = 0 while True: if count > 0: count = 1 if single else count try: nodeIds = self.run_cdp_loaded('DOM.getSearchResults', searchId=search_result['searchId'], fromIndex=0, toIndex=count) if nodeIds['nodeIds'][0] != 0: ok = True except Exception: pass if ok: try: if single: r = make_chromium_ele(self, node_id=nodeIds['nodeIds'][0]) break else: r = [make_chromium_ele(self, node_id=i) for i in nodeIds['nodeIds']] break except ElementLostError: ok = False try: search_result = self.run_cdp_loaded('DOM.performSearch', query=loc, includeUserAgentShadowDOM=True) count = search_result['resultCount'] except ContextLostError: pass if perf_counter() >= end_time: return NoneElement(self) if single else [] sleep(.1) try: self.run_cdp('DOM.discardSearchResults', searchId=search_result['searchId']) except: pass return r def refresh(self, ignore_cache=False): """刷新当前页面 :param ignore_cache: 是否忽略缓存 :return: None """ self._is_loading = True self.run_cdp('Page.reload', ignoreCache=ignore_cache) self.wait.load_start() def forward(self, steps=1): """在浏览历史中前进若干步 :param steps: 前进步数 :return: None """ self._forward_or_back(steps) def back(self, steps=1): """在浏览历史中后退若干步 :param steps: 后退步数 :return: None """ self._forward_or_back(-steps) def _forward_or_back(self, steps): """执行浏览器前进或后退,会跳过url相同的历史记录 :param steps: 步数 :return: None """ if steps == 0: return history = self.run_cdp('Page.getNavigationHistory') index = history['currentIndex'] history = history['entries'] direction = 1 if steps > 0 else -1 curr_url = history[index]['url'] nid = None for num in range(abs(steps)): for i in history[index::direction]: index += direction if i['url'] != curr_url: nid = i['id'] curr_url = i['url'] break if nid: self._is_loading = True self.run_cdp('Page.navigateToHistoryEntry', entryId=nid) def stop_loading(self): """页面停止加载""" if self._debug: print('停止页面加载') try: self.run_cdp('Page.stopLoading') except (PageClosedError, CDPError): pass end_time = perf_counter() + self.timeouts.page_load while self._ready_state != 'complete' and perf_counter() < end_time: sleep(.1) def remove_ele(self, loc_or_ele): """从页面上删除一个元素 :param loc_or_ele: 元素对象或定位符 :return: None """ if not loc_or_ele: return ele = self._ele(loc_or_ele, raise_err=False) if ele: self.run_cdp('DOM.removeNode', nodeId=ele._node_id) def get_frame(self, loc_ind_ele, timeout=None): """获取页面中一个frame对象,可传入定位符、iframe序号、ChromiumFrame对象,序号从1开始 :param loc_ind_ele: 定位符、iframe序号、ChromiumFrame对象 :param timeout: 查找元素超时时间 :return: ChromiumFrame对象 """ if isinstance(loc_ind_ele, str): if not is_loc(loc_ind_ele): xpath = f'xpath://*[(name()="iframe" or name()="frame") and ' \ f'(@name="{loc_ind_ele}" or @id="{loc_ind_ele}")]' else: xpath = loc_ind_ele ele = self._ele(xpath, timeout=timeout) if ele and not str(type(ele)).endswith(".ChromiumFrame'>"): raise TypeError('该定位符不是指向frame元素。') r = ele elif isinstance(loc_ind_ele, tuple): ele = self._ele(loc_ind_ele, timeout=timeout) if ele and not str(type(ele)).endswith(".ChromiumFrame'>"): raise TypeError('该定位符不是指向frame元素。') r = ele elif isinstance(loc_ind_ele, int): if loc_ind_ele < 1: raise ValueError('序号必须大于0。') xpath = f'xpath:(//*[name()="frame" or name()="iframe"])[{loc_ind_ele}]' r = self._ele(xpath, timeout=timeout) elif str(type(loc_ind_ele)).endswith(".ChromiumFrame'>"): r = loc_ind_ele else: raise TypeError('必须传入定位符、iframe序号、id、name、ChromiumFrame对象其中之一。') if isinstance(r, NoneElement): r.method = 'get_frame()' r.args = {'loc_ind_ele': loc_ind_ele} return r def get_frames(self, loc=None, timeout=None): """获取所有符合条件的frame对象 :param loc: 定位符,为None时返回所有 :param timeout: 查找超时时间 :return: ChromiumFrame对象组成的列表 """ loc = loc or 'xpath://*[name()="iframe" or name()="frame"]' frames = self._ele(loc, timeout=timeout, single=False, raise_err=False) return [i for i in frames if str(type(i)).endswith(".ChromiumFrame'>")] def get_session_storage(self, item=None): """获取sessionStorage信息,不设置item则获取全部 :param item: 要获取的项,不设置则返回全部 :return: sessionStorage一个或所有项内容 """ if item: js = f'sessionStorage.getItem("{item}");' return self.run_js_loaded(js, as_expr=True) else: js = ''' var dp_ls_len = sessionStorage.length; var dp_ls_arr = new Array(); for(var i = 0; i < dp_ls_len; i++) { var getKey = sessionStorage.key(i); var getVal = sessionStorage.getItem(getKey); dp_ls_arr[i] = {'key': getKey, 'val': getVal} } return dp_ls_arr; ''' return {i['key']: i['val'] for i in self.run_js_loaded(js)} def get_local_storage(self, item=None): """获取localStorage信息,不设置item则获取全部 :param item: 要获取的项目,不设置则返回全部 :return: localStorage一个或所有项内容 """ if item: js = f'localStorage.getItem("{item}");' return self.run_js_loaded(js, as_expr=True) else: js = ''' var dp_ls_len = localStorage.length; var dp_ls_arr = new Array(); for(var i = 0; i < dp_ls_len; i++) { var getKey = localStorage.key(i); var getVal = localStorage.getItem(getKey); dp_ls_arr[i] = {'key': getKey, 'val': getVal} } return dp_ls_arr; ''' return {i['key']: i['val'] for i in self.run_js_loaded(js)} def get_screenshot(self, path=None, name=None, as_bytes=None, as_base64=None, full_page=False, left_top=None, right_bottom=None): """对页面进行截图,可对整个网页、可见网页、指定范围截图。对可视范围外截图需要90以上版本浏览器支持 :param path: 保存路径 :param name: 完整文件名,后缀可选 'jpg','jpeg','png','webp' :param as_bytes: 是否以字节形式返回图片,可选 'jpg','jpeg','png','webp',生效时path参数和as_base64参数无效 :param as_base64: 是否以base64字符串形式返回图片,可选 'jpg','jpeg','png','webp',生效时path参数无效 :param full_page: 是否整页截图,为True截取整个网页,为False截取可视窗口 :param left_top: 截取范围左上角坐标 :param right_bottom: 截取范围右下角角坐标 :return: 图片完整路径或字节文本 """ return self._get_screenshot(path=path, name=name, as_bytes=as_bytes, as_base64=as_base64, full_page=full_page, left_top=left_top, right_bottom=right_bottom) def clear_cache(self, session_storage=True, local_storage=True, cache=True, cookies=True): """清除缓存,可选要清除的项 :param session_storage: 是否清除sessionStorage :param local_storage: 是否清除localStorage :param cache: 是否清除cache :param cookies: 是否清除cookies :return: None """ if session_storage or local_storage: self.run_cdp_loaded('DOMStorage.enable') i = self.run_cdp('Storage.getStorageKeyForFrame', frameId=self._frame_id)['storageKey'] if session_storage: self.run_cdp('DOMStorage.clear', storageId={'storageKey': i, 'isLocalStorage': False}) if local_storage: self.run_cdp('DOMStorage.clear', storageId={'storageKey': i, 'isLocalStorage': True}) self.run_cdp_loaded('DOMStorage.disable') if cache: self.run_cdp_loaded('Network.clearBrowserCache') if cookies: self.run_cdp_loaded('Network.clearBrowserCookies') def handle_alert(self, accept=True, send=None, timeout=None, next_one=False): """处理提示框,可以自动等待提示框出现 :param accept: True表示确认,False表示取消,其它值不会按按钮但依然返回文本值 :param send: 处理prompt提示框时可输入文本 :param timeout: 等待提示框出现的超时时间,为None则使用self.timeout属性的值 :param next_one: 是否处理下一个出现的提示框,为True时timeout参数无效 :return: 提示框内容文本,未等到提示框则返回False """ if next_one: self._alert.handle_next = accept self._alert.next_text = send return timeout = self.timeout if timeout is None else timeout timeout = .1 if timeout <= 0 else timeout end_time = perf_counter() + timeout while not self._alert.activated and perf_counter() < end_time: sleep(.1) if not self._alert.activated: return False res_text = self._alert.text if self._alert.type == 'prompt': self.driver.run('Page.handleJavaScriptDialog', accept=accept, promptText=send) else: self.driver.run('Page.handleJavaScriptDialog', accept=accept) return res_text def _on_alert_open(self, **kwargs): """alert出现时触发的方法""" self._alert.activated = True self._alert.text = kwargs['message'] self._alert.type = kwargs['message'] self._alert.defaultPrompt = kwargs.get('defaultPrompt', None) self._alert.response_accept = None self._alert.response_text = None self._has_alert = True if self._alert.auto is not None: self.handle_alert(self._alert.auto) elif self._alert.handle_next is not None: self.handle_alert(self._alert.handle_next, self._alert.next_text) self._alert.handle_next = None def _on_alert_close(self, **kwargs): """alert关闭时触发的方法""" self._alert.activated = False self._alert.text = None self._alert.type = None self._alert.defaultPrompt = None self._alert.response_accept = kwargs.get('result') self._alert.response_text = kwargs['userInput'] self._has_alert = False def _wait_loaded(self, timeout=None): """等待页面加载完成,超时触发停止加载 :param timeout: 超时时间 :return: 是否成功,超时返回False """ if self._load_mode == 'none': return True timeout = timeout if timeout is not None else self.timeouts.page_load end_time = perf_counter() + timeout while perf_counter() < end_time: if self._ready_state == 'complete': return True elif self._load_mode == 'eager' and self._ready_state in ('interactive', 'complete') and not self._is_loading: return True sleep(.1) try: self.stop_loading() except CDPError: pass return False def _before_connect(self, url, retry, interval): """连接前的准备 :param url: 要访问的url :param retry: 重试次数 :param interval: 重试间隔 :return: 重试次数和间隔组成的tuple """ url = quote(url, safe='-_.~!*\'"();:@&=+$,/\\?#[]%') if not url: self._url = 'chrome://newtab/' elif not match(r'.*?://', url): self._url = f'http://{url}' else: self._url = url retry = retry if retry is not None else self.retry_times interval = interval if interval is not None else self.retry_interval return retry, interval def _d_connect(self, to_url, times=0, interval=1, show_errmsg=False, timeout=None): """尝试连接,重试若干次 :param to_url: 要访问的url :param times: 重试次数 :param interval: 重试间隔(秒) :param show_errmsg: 是否抛出异常 :param timeout: 连接超时时间 :return: 是否成功,返回None表示不确定 """ err = None timeout = timeout if timeout is not None else self.timeouts.page_load for t in range(times + 1): err = None end_time = perf_counter() + timeout try: result = self.run_cdp('Page.navigate', frameId=self._frame_id, url=to_url, _timeout=timeout) if 'errorText' in result: err = ConnectionError(result['errorText']) except TimeoutError: err = TimeoutError('页面连接超时。') if err: if t < times: sleep(interval) if self._debug or show_errmsg: print(f'重试{t + 1} {to_url}') self.stop_loading() continue if self._load_mode == 'none': return True yu = end_time - perf_counter() ok = self._wait_loaded(1 if yu <= 0 else yu) if not ok: err = TimeoutError('页面连接超时。') if t < times: sleep(interval) if self._debug or show_errmsg: print(f'重试{t + 1} {to_url}') continue if not err: break if err: if show_errmsg: raise err if err is not None else ConnectionError('连接异常。') return False return True def _get_screenshot(self, path=None, name=None, as_bytes=None, as_base64=None, full_page=False, left_top=None, right_bottom=None, ele=None): """对页面进行截图,可对整个网页、可见网页、指定范围截图。对可视范围外截图需要90以上版本浏览器支持 :param path: 保存路径 :param name: 完整文件名,后缀可选 'jpg','jpeg','png','webp' :param as_bytes: 是否以字节形式返回图片,可选 'jpg','jpeg','png','webp',生效时path参数和as_base64参数无效 :param as_base64: 是否以base64字符串形式返回图片,可选 'jpg','jpeg','png','webp',生效时path参数无效 :param full_page: 是否整页截图,为True截取整个网页,为False截取可视窗口 :param left_top: 截取范围左上角坐标 :param right_bottom: 截取范围右下角角坐标 :param ele: 为异域iframe内元素截图设置 :return: 图片完整路径或字节文本 """ if as_bytes: if as_bytes is True: pic_type = 'png' else: if as_bytes not in ('jpg', 'jpeg', 'png', 'webp'): raise TypeError("只能接收 'jpg', 'jpeg', 'png', 'webp' 四种格式。") pic_type = 'jpeg' if as_bytes == 'jpg' else as_bytes elif as_base64: if as_base64 is True: pic_type = 'png' else: if as_base64 not in ('jpg', 'jpeg', 'png', 'webp'): raise TypeError("只能接收 'jpg', 'jpeg', 'png', 'webp' 四种格式。") pic_type = 'jpeg' if as_base64 == 'jpg' else as_base64 else: path = str(path).rstrip('\\/') if path else '.' if not path.endswith(('.jpg', '.jpeg', '.png', '.webp')): if not name: name = f'{self.title}.jpg' elif not name.endswith(('.jpg', '.jpeg', '.png', '.webp')): name = f'{name}.jpg' path = f'{path}{sep}{name}' path = get_usable_path(path) pic_type = path.suffix.lower() pic_type = 'jpeg' if pic_type == '.jpg' else pic_type[1:] width, height = self.rect.size if full_page: vp = {'x': 0, 'y': 0, 'width': width, 'height': height, 'scale': 1} png = self.run_cdp_loaded('Page.captureScreenshot', format=pic_type, captureBeyondViewport=True, clip=vp)['data'] else: if left_top and right_bottom: x, y = left_top w = right_bottom[0] - x h = right_bottom[1] - y v = not (location_in_viewport(self, x, y) and location_in_viewport(self, right_bottom[0], right_bottom[1])) if v and (self.run_js('return document.body.scrollHeight > window.innerHeight;') and not self.run_js('return document.body.scrollWidth > window.innerWidth;')): x += 10 vp = {'x': x, 'y': y, 'width': w, 'height': h, 'scale': 1} png = self.run_cdp_loaded('Page.captureScreenshot', format=pic_type, captureBeyondViewport=v, clip=vp)['data'] else: png = self.run_cdp_loaded('Page.captureScreenshot', format=pic_type)['data'] if as_base64: return png from base64 import b64decode png = b64decode(png) if as_bytes: return png path.parent.mkdir(parents=True, exist_ok=True) with open(path, 'wb') as f: f.write(png) return str(path.absolute()) # --------------------即将废弃--------------------- @property def page_load_strategy(self): return self._load_mode @property def is_alive(self): return self.states.is_alive @property def is_loading(self): """返回页面是否正在加载状态""" return self._is_loading @property def ready_state(self): return self._ready_state @property def size(self): """返回页面总宽高,格式:(宽, 高)""" return self.rect.size class Timeout(object): """用于保存d模式timeout信息的类""" def __init__(self, page, base=None, page_load=None, script=None, implicit=None): """ :param page: ChromiumBase页面 :param base: 默认超时时间 :param page_load: 页面加载超时时间 :param script: js超时时间 """ self._page = page base = base if base is not None else implicit self.base = 10 if base is None else base self.page_load = 30 if page_load is None else page_load self.script = 30 if script is None else script def __repr__(self): return str({'base': self.base, 'page_load': self.page_load, 'script': self.script}) class Alert(object): """用于保存alert信息的类""" def __init__(self): self.activated = False self.text = None self.type = None self.defaultPrompt = None self.response_accept = None self.response_text = None self.handle_next = None self.next_text = None self.auto = None def close_privacy_dialog(page, tid): """关闭隐私声明弹窗 :param page: ChromiumBase对象 :param tid: tab id :return: None """ try: driver = page.browser._get_driver(tid) driver.run('Runtime.enable') driver.run('DOM.enable') driver.run('DOM.getDocument') sid = driver.run('DOM.performSearch', query='//*[name()="privacy-sandbox-notice-dialog-app"]', includeUserAgentShadowDOM=True)['searchId'] r = driver.run('DOM.getSearchResults', searchId=sid, fromIndex=0, toIndex=1)['nodeIds'][0] end_time = perf_counter() + 3 while perf_counter() < end_time: try: r = driver.run('DOM.describeNode', nodeId=r)['node']['shadowRoots'][0]['backendNodeId'] break except KeyError: pass driver.run('DOM.discardSearchResults', searchId=sid) r = driver.run('DOM.resolveNode', backendNodeId=r)['object']['objectId'] r = driver.run('Runtime.callFunctionOn', objectId=r, functionDeclaration='function(){return this.getElementById("ackButton");}')['result']['objectId'] driver.run('Runtime.callFunctionOn', objectId=r, functionDeclaration='function(){return this.click();}') driver.close() except: pass