mirror of
https://gitee.com/g1879/DrissionPage.git
synced 2024-12-10 04:00:23 +08:00
268 lines
8.9 KiB
Python
268 lines
8.9 KiB
Python
# -*- coding:utf-8 -*-
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"""
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@Author : g1879
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@Contact : g1879@qq.com
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"""
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from html import unescape
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from http.cookiejar import Cookie
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from re import sub
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from urllib.parse import urlparse, urljoin, urlunparse
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from requests.cookies import RequestsCookieJar
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from tldextract import extract
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def get_ele_txt(e):
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"""获取元素内所有文本
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:param e: 元素对象
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:return: 元素内所有文本
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"""
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# 前面无须换行的元素
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nowrap_list = ('br', 'sub', 'sup', 'em', 'strong', 'a', 'font', 'b', 'span', 's', 'i', 'del', 'ins', 'img', 'td',
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'th', 'abbr', 'bdi', 'bdo', 'cite', 'code', 'data', 'dfn', 'kbd', 'mark', 'q', 'rp', 'rt', 'ruby',
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'samp', 'small', 'time', 'u', 'var', 'wbr', 'button', 'slot', 'content')
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# 后面添加换行的元素
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wrap_after_list = ('p', 'div', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'ol', 'li', 'blockquote', 'header',
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'footer', 'address' 'article', 'aside', 'main', 'nav', 'section', 'figcaption', 'summary')
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# 不获取文本的元素
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noText_list = ('script', 'style', 'video', 'audio', 'iframe', 'embed', 'noscript', 'canvas', 'template')
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# 用/t分隔的元素
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tab_list = ('td', 'th')
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if e.tag in noText_list:
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return e.raw_text
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def get_node_txt(ele, pre: bool = False):
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tag = ele.tag
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if tag == 'br':
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return [True]
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if not pre and tag == 'pre':
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pre = True
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str_list = []
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if tag in noText_list and not pre: # 标签内的文本不返回
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return str_list
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nodes = ele.eles('xpath:./text() | *')
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prev_ele = ''
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for el in nodes:
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if isinstance(el, str): # 字符节点
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if pre:
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str_list.append(el)
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else:
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if sub('[ \n\t\r]', '', el) != '': # 字符除了回车和空格还有其它内容
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txt = el
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if not pre:
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txt = txt.replace('\n', ' ').strip(' ')
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txt = sub(r' {2,}', ' ', txt)
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str_list.append(txt)
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else: # 元素节点
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if el.tag not in nowrap_list and str_list and str_list[-1] != '\n': # 元素间换行的情况
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str_list.append('\n')
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if el.tag in tab_list and prev_ele in tab_list: # 表格的行
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str_list.append('\t')
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str_list.extend(get_node_txt(el, pre))
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prev_ele = el.tag
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if tag in wrap_after_list and str_list and str_list[-1] not in ('\n', True): # 有些元素后面要添加回车
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str_list.append('\n')
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return str_list
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re_str = get_node_txt(e)
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if re_str and re_str[-1] == '\n':
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re_str.pop()
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re_str = ''.join([i if i is not True else '\n' for i in re_str])
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return format_html(re_str)
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def format_html(text):
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"""处理html编码字符
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:param text: html文本
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:return: 格式化后的html文本
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"""
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return unescape(text).replace('\xa0', ' ') if text else text
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def location_in_viewport(page, loc_x, loc_y):
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"""判断给定的坐标是否在视口中 |n
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:param page: ChromePage对象
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:param loc_x: 页面绝对坐标x
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:param loc_y: 页面绝对坐标y
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:return:
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"""
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js = f'''function(){{var x = {loc_x}; var y = {loc_y};
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const scrollLeft = document.documentElement.scrollLeft;
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const scrollTop = document.documentElement.scrollTop;
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const vWidth = document.documentElement.clientWidth;
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const vHeight = document.documentElement.clientHeight;
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if (x< scrollLeft || y < scrollTop || x > vWidth + scrollLeft || y > vHeight + scrollTop){{return false;}}
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return true;}}'''
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return page.run_js(js)
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# const vWidth = window.innerWidth || document.documentElement.clientWidth;
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# const vHeight = window.innerHeight || document.documentElement.clientHeight;
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def offset_scroll(ele, offset_x, offset_y):
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"""接收元素及偏移坐标，把坐标滚动到页面中间，返回该点在视口中的坐标
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有偏移量时以元素左上角坐标为基准，没有时以click_point为基准
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:param ele: 元素对象
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:param offset_x: 偏移量x
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:param offset_y: 偏移量y
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:return: 视口中的坐标
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"""
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loc_x, loc_y = ele.location
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cp_x, cp_y = ele.locations.click_point
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lx = loc_x + offset_x if offset_x else cp_x
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ly = loc_y + offset_y if offset_y else cp_y
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if not location_in_viewport(ele.page, lx, ly):
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clientWidth = ele.page.run_js('return document.body.clientWidth;')
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clientHeight = ele.page.run_js('return document.body.clientHeight;')
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ele.page.scroll.to_location(lx - clientWidth // 2, ly - clientHeight // 2)
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cl_x, cl_y = ele.locations.viewport_location
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ccp_x, ccp_y = ele.locations.viewport_click_point
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cx = cl_x + offset_x if offset_x else ccp_x
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cy = cl_y + offset_y if offset_y else ccp_y
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return cx, cy
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def make_absolute_link(link, page=None):
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"""获取绝对url
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:param link: 超链接
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:param page: 页面对象
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:return: 绝对链接
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"""
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if not link:
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return link
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parsed = urlparse(link)._asdict()
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# 是相对路径，与页面url拼接并返回
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if not parsed['netloc']:
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return urljoin(page.url, link) if page else link
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# 是绝对路径但缺少协议，从页面url获取协议并修复
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if not parsed['scheme'] and page:
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parsed['scheme'] = urlparse(page.url).scheme
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parsed = tuple(v for v in parsed.values())
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return urlunparse(parsed)
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# 绝对路径且不缺协议，直接返回
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return link
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def is_js_func(func):
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"""检查文本是否js函数"""
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func = func.strip()
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if func.startswith('function') or func.startswith('async '):
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return True
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elif '=>' in func:
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return True
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return False
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def cookie_to_dict(cookie):
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"""把Cookie对象转为dict格式
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:param cookie: Cookie对象
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:return: cookie字典
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"""
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if isinstance(cookie, Cookie):
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cookie_dict = cookie.__dict__.copy()
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cookie_dict.pop('rfc2109')
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cookie_dict.pop('_rest')
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return cookie_dict
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elif isinstance(cookie, dict):
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cookie_dict = cookie
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elif isinstance(cookie, str):
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cookie = cookie.split(',' if ',' in cookie else ';')
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cookie_dict = {}
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for key, attr in enumerate(cookie):
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attr_val = attr.lstrip().split('=')
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if key == 0:
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cookie_dict['name'] = attr_val[0]
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cookie_dict['value'] = attr_val[1] if len(attr_val) == 2 else ''
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else:
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cookie_dict[attr_val[0]] = attr_val[1] if len(attr_val) == 2 else ''
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return cookie_dict
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else:
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raise TypeError('cookie参数必须为Cookie、str或dict类型。')
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return cookie_dict
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def cookies_to_tuple(cookies):
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"""把cookies转为tuple格式
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:param cookies: cookies信息，可为CookieJar, list, tuple, str, dict
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:return: 返回tuple形式的cookies
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"""
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if isinstance(cookies, (list, tuple, RequestsCookieJar)):
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cookies = tuple(cookie_to_dict(cookie) for cookie in cookies)
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elif isinstance(cookies, str):
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cookies = tuple(cookie_to_dict(cookie.lstrip()) for cookie in cookies.split(";"))
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elif isinstance(cookies, dict):
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cookies = tuple({'name': cookie, 'value': cookies[cookie]} for cookie in cookies)
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else:
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raise TypeError('cookies参数必须为RequestsCookieJar、list、tuple、str或dict类型。')
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return cookies
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def set_session_cookies(session, cookies):
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"""设置Session对象的cookies
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:param session: Session对象
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:param cookies: cookies信息
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:return: None
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"""
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cookies = cookies_to_tuple(cookies)
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for cookie in cookies:
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if cookie['value'] is None:
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cookie['value'] = ''
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kwargs = {x: cookie[x] for x in cookie
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if x.lower() in ('version', 'port', 'domain', 'path', 'secure',
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'expires', 'discard', 'comment', 'comment_url', 'rest')}
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if 'expiry' in cookie:
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kwargs['expires'] = cookie['expiry']
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session.cookies.set(cookie['name'], cookie['value'], **kwargs)
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def set_browser_cookies(page, cookies):
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"""设置cookies值
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:param page: 页面对象
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:param cookies: cookies信息
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:return: None
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"""
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cookies = cookies_to_tuple(cookies)
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for cookie in cookies:
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if 'expiry' in cookie:
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cookie['expires'] = int(cookie['expiry'])
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cookie.pop('expiry')
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if 'expires' in cookie:
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cookie['expires'] = int(cookie['expires'])
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if not cookie.get('domain', None):
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ex_url = extract(page._browser_url)
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cookie['domain'] = f'{ex_url.domain}.{ex_url.suffix}' if ex_url.suffix else ex_url.domain
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if cookie['value'] is None:
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cookie['value'] = ''
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try:
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page.run_cdp_loaded('Network.setCookie', **cookie)
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except Exception as e:
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pass
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