Python 下载嵌入在页面中的 PDF [英] Python Download PDF Embedded in a Page

问题描述

我有这个链接:

• <小时>

  看一下具体简介:

  profile = {"plugins.plugins_list": [{"enabled": False,"name": "Chrome PDF 查看器"}],download.default_directory":下载文件夹，"download.extensions_to_open": ""}

  它禁用 Chrome PDF Viewer 插件(在网页上嵌入 pdf)，将默认下载文件夹设置为 download_folder 变量中定义的文件夹并设置 Chrome不允许自动打开任何扩展.

  之后，当您打开所谓的内部链接"时，您的网络驱动程序会自动将 .pdf 文件下载到 download_folder.

  I have this link:

  • http://www.equibase.com/premium/chartEmb.cfm?track=ALB&raceDate=06/17/2002&cy=USA&rn=1

  I want to download the embedded PDF.

  I have tried the normal methods of urllib and request but they're not working.

  import urllib2
  
  url = "http://www.equibase.com/premium/chartEmb.cfm?track=ALB&raceDate=06/17/2002&cy=USA&rn=1"
  response = urllib2.urlopen(url)
  file = open("document.pdf", 'wb')
  file.write(response.read())
  file.close()
  

  Moreover, I have also tried to find the original link of the pdf but it also did not work.

  Internal link:

  • http://www.equibase.com/premium/eqbPDFChartPlus.cfm?RACE=A&BorP=P&TID=ALB&CTRY=USA&DT=06/17/2002&DAY=D&STYLE=EQB&eqbPDFChartPlus.pdf

  解决方案

  Using Selenium with a specific ChromeProfile you can download embedded pdfs using the following code:

  Code:

  def download_pdf(lnk):
  
      from selenium import webdriver
      from time import sleep
  
      options = webdriver.ChromeOptions()
  
      download_folder = "C:\"    
  
      profile = {"plugins.plugins_list": [{"enabled": False,
                                           "name": "Chrome PDF Viewer"}],
                 "download.default_directory": download_folder,
                 "download.extensions_to_open": ""}
  
      options.add_experimental_option("prefs", profile)
  
      print("Downloading file from link: {}".format(lnk))
  
      driver = webdriver.Chrome(chrome_options = options)
      driver.get(lnk)
  
      filename = lnk.split("/")[4].split(".cfm")[0]
      print("File: {}".format(filename))
  
      print("Status: Download Complete.")
      print("Folder: {}".format(download_folder))
  
      driver.close()
  

  And when I call this function:

  download_pdf("http://www.equibase.com/premium/eqbPDFChartPlus.cfm?RACE=1&BorP=P&TID=ALB&CTRY=USA&DT=06/17/2002&DAY=D&STYLE=EQB")
  

  Thats the output:

  >>> Downloading file from link: http://www.equibase.com/premium/eqbPDFChartPlus.cfm?RACE=1&BorP=P&TID=ALB&CTRY=USA&DT=06/17/2002&DAY=D&STYLE=EQB
  >>> File: eqbPDFChartPlus
  >>> Status: Download Complete.
  >>> Folder: C:
  

  ---

  Take a look at the specific profile:

  profile = {"plugins.plugins_list": [{"enabled": False,
                                       "name": "Chrome PDF Viewer"}],
             "download.default_directory": download_folder,
             "download.extensions_to_open": ""}
  

  It disables the Chrome PDF Viewer plugin (that embedds the pdf at the webpage), set the default download folder to the folder defined at download_folder variable and sets that Chrome isn't allowed to open any extensions automatically.

  After that, when you open the so called "Internal link" your webdriver will automatically download the .pdf file to the download_folder.

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