mirror of
https://github.com/hjdhnx/dr_py.git
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211 lines
7.6 KiB
Python
211 lines
7.6 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# File : htmlParser.py
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# Author: DaShenHan&道长-----先苦后甜，任凭晚风拂柳颜------
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# Date : 2022/8/25
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import json
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from pyquery import PyQuery as pq
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from lxml import etree
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from urllib.parse import urljoin
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import re
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from jsonpath import jsonpath
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PARSE_CACHE = True # 解析缓存
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class jsoup:
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def __init__(self,MY_URL=''):
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self.MY_URL = MY_URL
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self.pdfh_html = ''
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self.pdfa_html = ''
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self.pdfh_doc = None
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self.pdfa_doc = None
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def test(self, text:str, string:str):
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searchObj = re.search(rf'{text}', string, re.M | re.I)
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test_ret = True if searchObj else False
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return test_ret
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def pdfh(self,html,parse:str,add_url=False):
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if not parse:
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return ''
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if PARSE_CACHE:
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if self.pdfh_html != html:
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self.pdfh_html = html
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self.pdfh_doc = pq(html)
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doc = self.pdfh_doc
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else:
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doc = pq(html)
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if parse == 'body&&Text' or parse == 'Text':
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text = doc.text()
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return text
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elif parse == 'body&&Html' or parse == 'Html':
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return doc.html()
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option = None
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if parse.find('&&') > -1:
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option = parse.split('&&')[-1]
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parse = parse.split('&&')[:-1] # 如果只有一个&& 取的就直接是0
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if len(parse) > 1: # 如果不大于1可能就是option操作,不需要拼eq
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parse = ' '.join([i if self.test(':eq|:lt|:gt|#',i) else f'{i}:eq(0)' for i in parse])
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else:
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parse = parse[0] if self.test(':eq|:lt|:gt|#',parse[0]) else f'{parse[0]}:eq(0)'
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# FIXME 暂时不支持jsonpath那样的|| 分割取或属性
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if option:
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# print(f'parse:{parse}=>(option:{option})')
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if ':eq(-1)' in parse:
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# 处理 eq(-1)的情况,兼容性差，暂时只支持一层eq
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ret = doc(parse.replace(':eq(-1)','')).eq(-1)
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else:
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ret = doc(parse)
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# print(html)
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# FIXME 解析出来有多个的情况应该自动取第一个
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if option == 'Text':
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ret = ret.text()
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elif option == 'Html':
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ret = ret.html()
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else:
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ret = ret.attr(option) or ''
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if option.lower().find('style')>-1 and ret.find('url(')>-1:
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try:
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ret = re.search('url\((.*?)\)',ret,re.M|re.S).groups()[0]
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except:
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pass
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if ret and add_url:
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# pd_list = 'url|src|href|data-original|data-src|data-play|data-url'.split('|')
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# need_add = option in pd_list
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need_add = re.search('(url|src|href|-original|-src|-play|-url)$', option, re.M | re.I)
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# print(f'option:{option},need_add:{need_add}')
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if need_add:
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if 'http' in ret:
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ret = ret[ret.find('http'):]
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else:
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ret = urljoin(self.MY_URL,ret)
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# print(ret)
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else:
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# ret = doc(parse+':first')
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ret = doc(parse) # 由于是生成器,直接转str就能拿到第一条数据,不需要next
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# ret = ret.next() # 取第一条数据
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# ret = doc(parse) # 下面注释的写法不对的
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# ret = ret.find(':first')
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# ret = ret.children(':first')
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# print(parse)
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# ret = str(ret)
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ret = ret.outerHtml()
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return ret
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def pdfa(self,html,parse:str):
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# 看官方文档才能解决这个问题!!!
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# https://pyquery.readthedocs.io/en/latest/api.html
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if not parse:
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return []
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if parse.find('&&') > -1:
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parse = parse.split('&&') # 带&&的重新拼接
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# print(f"{parse[0]},{self.test(':eq|:lt|:gt', parse[0])}")
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parse = ' '.join([parse[i] if self.test(':eq|:lt|:gt', parse[i]) or i>=len(parse)-1 else f'{parse[i]}:eq(0)' for i in range(len(parse))])
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print(f'pdfa:{parse}')
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# print(html)
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if PARSE_CACHE:
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if self.pdfa_html != html:
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self.pdfa_html = html
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self.pdfa_doc = pq(html)
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doc = self.pdfa_doc
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else:
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doc = pq(html)
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result = doc(parse)
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# 节点转字符串
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# print(str(etree.tostring(result[0], pretty_print=True), 'utf-8'))
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# res = [item for item in result.items()]
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# print(res)
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res = [item.outerHtml() for item in result.items()] # 这个才是对的！！str() item str(etree.tostring 统统错误
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# res = [str(item) for item in result.items()]
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# res = [str(etree.tostring(item, pretty_print=True), 'utf-8') for item in result]
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# print(len(res),res)
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# print('pdfa执行结果数:',len(res))
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return res
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def pd(self,html,parse:str):
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return self.pdfh(html,parse,True)
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def pq(self,html:str):
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return pq(html)
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def pjfh(self,html,parse:str,add_url=False):
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if not parse:
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return ''
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if isinstance(html,str):
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# print(html)
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try:
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html = json.loads(html)
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# html = eval(html)
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except:
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print('字符串转json失败')
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return ''
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if not parse.startswith('$.'):
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parse = f'$.{parse}'
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ret = ''
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for ps in parse.split('||'):
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ret = jsonpath(html,ps)
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if isinstance(ret,list):
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ret = str(ret[0]) if ret[0] else ''
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else:
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ret = str(ret) if ret else ''
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if add_url and ret:
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ret = urljoin(self.MY_URL, ret)
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if ret:
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break
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# print(ret)
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return ret
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def pj(self, html, parse:str):
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return self.pjfh(html, parse, True)
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def pjfa(self,html,parse:str):
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if not parse:
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return []
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if isinstance(html,str):
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try:
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html = json.loads(html)
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except:
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return ''
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if not parse.startswith('$.'):
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parse = f'$.{parse}'
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# print(html)
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# print(parse)
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ret = jsonpath(html,parse)
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# print(ret)
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# print(type(ret))
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# print(type(ret[0]))
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# print(len(ret))
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if isinstance(ret,list) and isinstance(ret[0],list) and len(ret) == 1:
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# print('自动解包')
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ret = ret[0] # 自动解包
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return ret or []
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if __name__ == '__main__':
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import requests
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from parsel import Selector
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url = 'http://360yy.cn'
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jsp = jsoup(url)
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def pdfa2(html,parse):
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if not parse:
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return []
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if parse.find('&&') > -1:
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parse = parse.split('&&') # 带&&的重新拼接
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# print(f"{parse[0]},{self.test(':eq|:lt|:gt', parse[0])}")
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# parse = ' '.join([parse[i] if self.test(':eq|:lt|:gt', parse[i]) or i>=len(parse)-1 else f'{parse[i]}:eq(0)' for i in range(len(parse))])
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parse = ' '.join([parse[i] if jsoup().test(':eq|:lt|:gt', parse[i]) or i>=len(parse)-1 else f'{parse[i]}:nth-child(1)' for i in range(len(parse))])
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# print(f'pdfa:{parse}')
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selector = Selector(text=html)
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print(parse)
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items = selector.css(parse)
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return [str(item) for item in items]
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r = requests.get(url)
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html = r.text
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# parsel 不好用啊,很难实现封装pdfa之类的函数
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items = pdfa2(html,'.fed-pops-navbar&&ul.fed-part-rows&&a')
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print(items)
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