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python-爬虫-字体加密

网友: 文章列表 2024-03-21 15:57:20

python-爬虫-字体加密

直接点 某8网 https://*.b*b.h*y*8*.com/

具体网址格式就是这样的但是为了安全起见,我就这样打码了.

抛出问题

python-爬虫-字体加密

  • 我们看到这个号码是在页面上正常显示的

python-爬虫-字体加密

  • F12 又是这样就比较麻烦,不能直接获取.
  • 用requests库也是获取不到正常想要的 源码的,因为字体加密了.

python-爬虫-字体加密

  • 查看页面源代码又是这样的.所以就是我们想怎么解密呢.

解决步骤

  1. 获取到真正的源码
  2. 找到对应的字体库
  3. 进行解析操作.

获取到真正的源码

为什么用webdriver,因为requests拿不到真正的源码.

from selenium import webdriver
# --- 进行chrome的配置
options = webdriver.ChromeOptions()prefs = {"profile.managed_default_content_settings.images": 2}  # 设置无图模式
options.add_experimental_option("prefs", prefs)
options.add_argument("service_args = ['–ignore-ssl-errors = true', '–ssl-protocol = TLSv1']")
options.binary_location = r'C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe'
# ---- chrome进行端口接管调用
options.add_argument('-incognito')driver = webdriver.Chrome(options=options)
driver.set_page_load_timeout(5)
# --- 设置宽和高位置
driver.maximize_window()
# --- 拦截webdriver检测代码
driver.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument",{"source": """Object.defineProperty(navigator, 'webdriver', {get: () => undefined})"""})

找到对应的字体库

python-爬虫-字体加密
python-爬虫-字体加密

这上面进行申明了告诉了我们这个是字体base64,然后就是那下来然后生成文件.

# 示例
import base64# 省略了很长的...
b64_code = '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'with open('font.ttf', 'wb') as f:f.write(base64.decodebytes(b64_code.encode()))from fontTools.ttLib import TTFont  # 导包font = TTFont('font.ttf')
font.saveXML('font.xml')

# 简单封装下
import base64
def w_tff(one_html):res_tff = re.findall(r';base64,(.*?)"', one_html, re.S)if res_tff and len(res_tff) == 1:new_res_ttf = res_tff[0]with open('123_new_ttf.ttf', 'wb') as f:f.write(base64.decodebytes(new_res_ttf.encode()))

读取文件找到里面的对应关系,就是 你这个数字的格式 是存储在.ttf文件里的.

from fontTools.ttLib import TTFont
def get_num_phone(es_str: str):# 加载字体生成映射关系path = '123_new_ttf.ttf'font = TTFont(path)# font.saveXML('font.xml')   # 生成xml文件# 得到映射关系bestcmap = font.getBestCmap()ss = {}for key, value in bestcmap.items():keys = hex(key).replace('0x', '').replace("&#x", "")  # 10进制转16进制if value == "zero":value = 0elif value == "one":value = 1elif value == "one":value = 1elif value == "two":value = 2elif value == "three":value = 3elif value == "four":value = 4elif value == "five":value = 5elif value == "six":value = 6elif value == "seven":value = 7elif value == "eight":value = 8elif value == "nine":value = 9elif value == "hyphen":value = "-"ss.update({keys: value})need_re = es_strlist_phone = ""try:for item in need_re.split(";"):if item:new_item = item.replace("&#x", "")list_phone += "".join(str(ss[new_item]))if not list_phone or len(list_phone) < 2:return Nonereturn list_phoneexcept Exception as e:return None

<cmap><tableVersion version="0"/><cmap_format_4 platformID="0" platEncID="3" language="0"><map code="0x23" name="numbersign"/><!-- NUMBER SIGN --><map code="0x2a" name="asterisk"/><!-- ASTERISK --><map code="0x2b" name="plus"/><!-- PLUS SIGN --><map code="0x2d" name="hyphen"/><!-- HYPHEN-MINUS --><map code="0x2f" name="slash"/><!-- SOLIDUS --></cmap_format_4><cmap_format_0 platformID="1" platEncID="0" language="0"><map code="0x23" name="numbersign"/><map code="0x2a" name="asterisk"/><map code="0x2b" name="plus"/><map code="0x2d" name="hyphen"/><map code="0x2f" name="slash"/></cmap_format_0><cmap_format_4 platformID="3" platEncID="1" language="0"><map code="0x23" name="numbersign"/><!-- NUMBER SIGN --><map code="0x2a" name="asterisk"/><!-- ASTERISK --><map code="0x2b" name="plus"/><!-- PLUS SIGN --><map code="0x2d" name="hyphen"/><!-- HYPHEN-MINUS --><map code="0x2f" name="slash"/><!-- SOLIDUS --></cmap_format_4><cmap_format_12 platformID="3" platEncID="10" format="12" reserved="0" length="76" language="0" nGroups="5"><map code="0x23" name="numbersign"/><!-- NUMBER SIGN --><map code="0x2a" name="asterisk"/><!-- ASTERISK --><map code="0x2b" name="plus"/><!-- PLUS SIGN --><map code="0x2d" name="hyphen"/><!-- HYPHEN-MINUS --><map code="0x2f" name="slash"/><!-- SOLIDUS --><map code="0x880fb" name="zero"/><!-- ???? --><map code="0x880fc" name="one"/><!-- ???? --><map code="0x880fd" name="two"/><!-- ???? --><map code="0x880fe" name="three"/><!-- ???? --><map code="0x880ff" name="four"/><!-- ???? --><map code="0x88100" name="five"/><!-- ???? --><map code="0x88101" name="six"/><!-- ???? --><map code="0x88102" name="seven"/><!-- ???? --><map code="0x88103" name="eight"/><!-- ???? --><map code="0x88104" name="nine"/><!-- ???? --></cmap_format_12></cmap>
  1. 读取ttf文件,(再生成xml文件,第一次寻找映射关系是需要做的)
  2. font.getBestCmap() 获取映射关系表
  3. 我们观察 xml文件的cmap段进行研究 ,可以看到我们明确需要的结果
  4. keys = hex(key).replace('0x', '').replace("&#x", "") 10进制转16进制 ,会得到映射关系表 {'23': 'numbersign', '2a': 'asterisk', '2b': 'plus', '2d': '-', '2f': 'slash', '8826e': 0, '8826f': 1, '88270': 2, '88271': 3, '88272': 4, '88273': 5, '88274': 6, '88275': 7, '88276': 8, '88277': 9}
  5. 和从页面上那些来的结果 进行 逐个匹配调整就行了.

注意的点

  • webdriver拿下来的页面源码有可能有点问题,所以我用了 soup_text = bs4.BeautifulSoup(driver.page_source, 'lxml').text 的方法来处理源代码 (import bs4)
  • 其他的就是一些小细节上的问题了.基本的思路就是这样的.
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