gen_browser_header

gen_browser_header create header for http(s) request, return a list like
[{ 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8', 'Accept-Encoding': '', 'Accept-Language': 'zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2', 'Connection': 'keep-alive', 'User-Agent': 'Mozilla/5.0 (Windows NT 6.0; Win64; x64; rv:74.0) Gecko/20100101 Firefox/74.0' },
{ 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,/;q=0.8,application/signed-exchange;v=b3;q=0.9', 'Accept-Encoding': '', 'Accept-Language': 'zh-CN,zh;q=0.9', 'Connection': 'keep-alive', 'User-Agent': 'Mozilla/5.0 (Windows NT 6.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36' }

install

pip install gen-browser-header

usage

import gen_browser_header.main.GenHeader as gen_header
import gen_browser_header.setting.Setting as setting
import gen_browser_header.self.SelfEnum as self_enum

cur_setting = setting.GbhSetting()
cur_setting.proxy_ip = ['10.11.12.13:8090']
cur_setting.browser_type = {self_enum.BrowserType.Chrome}
cur_setting.firefox_ver = {'min': 74, 'max': 75}
cur_setting.os_type = {self_enum.OsType.Win64}
cur_setting.chrome_type = {self_enum.ChromeType.Stable}
cur_setting.chrome_max_release_year = 1

print(gen_header(setting=cur_setting, num=10))

gen_browser_header use gen_header to generate headers, which include 3 parameters: setting, url and num.

setting

gen_browser_header use setting to pass related parameters into function , setting has below keys:

1. proxy_ip
   type:list. For example, ['10.18.20.71:8080']
   default: None.
   description: When gen_browser_header try to generate chrome header, it need to connect to https://www.chromedownloads.net/ to get valid chrome version, sometime, can 't directly connect to it, so need to set proxy ip to connect this url. get -browser-header will try each element in proxy_ip, until find an valid one to use, or can't find any valid, then raise an Exception and exit
2. browser_type
   type:set.
   default: self_enum.BrowserType.Firefox.
   description: what kind of browser's header to be generated. Currently, only support firefox and chrome. 3 enum value can be choose: self_enum.BrowserType.Chrome /self_enum.BrowserType.Firefox/self_enum.BrowserType.All. Notice, if All is set , Chrome and Firefox will be auto replace All. which means: {self_enum.BrowserType.All} will be convert to {self_enum.BrowserType.Chrome , self_enum.BrowserType.Firefox} internally
3. firefox_ver
   type:dict.
   default: {'min':64, 'max':75}
   description: the firefox version range, in which range, a firefox header will be generate. This parameter is a dict, include 2 keys: min and max, the related version info can be found in http://ftp.mozilla.org/pub/firefox /releases/. An exampleL {'min': 64, 'max': 75}
4. os_type
   type:set.
   default: self_enum.OsType.Win64.
   description: In which kind of operation system, the header generated . Currently , only 3 enum value can be choose: self_enum.OsType.Win32/self_enum.OsType.Win64 /self_enum.OsType.All. Notice, if All is set, Win32 and Win64 will be auto replace All. which means: {self_enum.OsType.All} will be convert to {self_enum.OsType.Win32, self_enum.OsType.Win64} internally
5. chrome_type
   type:set.
   default: self_enum.ChromeType.Stable.
   description: chrome has 4 different type: stable/beta/dev/canary, related enum value are self_enum.ChromeType.Stable /self_enum.ChromeType.Beta/self_enum.ChromeType.Dev/self_enum.ChromeType .Canary. An addition enum value self_enum.ChromeType.All also valid, it All is set, chrome_type will be replace to include all 4 chrome type internally. which means: {self_enum.ChromeType.All} will be convert to {self_enum.ChromeType.Win32, self_enum.OsType.Win64} internally
6. chrome_max_release_year
   type: int.
   default: 1.
   description: how long ago, chrome version should be choose, the max value is current year - 2008, 2008 is the year that chrome released

url

type: str
default: None
description: In request header, there is a item Host. gen_browser_header generate this item base on this parameter. For example, url 'https://packaging.python.org/tutorials/packaging-projects/' generate 'packaging.python.org'

num

type: int.
default: None.
description: how many header will be generate. if not set(default value is None), all generate header will be return, otherwise, the num headers will be return

change

0.1.0 use requests-html replace requests 0.1.3 add function extract_host_from_url; add item host in header