python - Selenium pdf自动下载不起作用

Question

我是 selenium 的新手，我正在编写一个爬虫来自动从给定站点下载 pdf 文件。

下面是我的代码:

from selenium import webdriver

fp = webdriver.FirefoxProfile()

fp.set_preference("browser.download.folderList",2);
fp.set_preference("browser.download.manager.showWhenStarting",False)
fp.set_preference("browser.download.dir", "/home/jill/Downloads/Dinamalar")
fp.set_preference("browser.helperApps.neverAsk.saveToDisk", "application/pdf")

browser = webdriver.Firefox(firefox_profile=fp)
browser.get("http://epaper.dinamalar.com/PUBLICATIONS/DM/MADHURAI/2015/05/26/PagePrint//26_05_2015_001_b2b69fda315301809dda359a6d3d9689.pdf");
webobj = browser.find_element_by_id("download").click();

我遵循了 Selenium documentation 中提到的步骤在这个 link .我不确定为什么每次都显示下载对话框。

有没有办法修复它，还有没有办法提供“应用程序/全部”，以便可以下载所有文件(解决方法)？

Answer 1

禁用内置的 pdfjs 插件并导航到 URL - PDF 文件将自动下载，代码:

from selenium import webdriver

fp = webdriver.FirefoxProfile()

fp.set_preference("browser.download.folderList", 2)
fp.set_preference("browser.download.manager.showWhenStarting",False)
fp.set_preference("browser.download.dir", "/home/jill/Downloads/Dinamalar")
fp.set_preference("browser.helperApps.neverAsk.saveToDisk", "application/pdf,application/x-pdf")

fp.set_preference("pdfjs.disabled", "true")  # < KEY PART HERE

browser = webdriver.Firefox(firefox_profile=fp)
browser.get("http://epaper.dinamalar.com/PUBLICATIONS/DM/MADHURAI/2015/05/26/PagePrint//26_05_2015_001_b2b69fda315301809dda359a6d3d9689.pdf");

---

更新(对我有用的完整代码):

from selenium import webdriver

mime_types = "application/pdf,application/vnd.adobe.xfdf,application/vnd.fdf,application/vnd.adobe.xdp+xml"

fp = webdriver.FirefoxProfile()
fp.set_preference("browser.download.folderList", 2)
fp.set_preference("browser.download.manager.showWhenStarting", False)
fp.set_preference("browser.download.dir", "/home/aafanasiev/Downloads")
fp.set_preference("browser.helperApps.neverAsk.saveToDisk", mime_types)
fp.set_preference("plugin.disable_full_page_plugin_for_types", mime_types)
fp.set_preference("pdfjs.disabled", True)

browser = webdriver.Firefox(firefox_profile=fp)
browser.get("http://epaper.dinamalar.com/")

webobj_get_link = browser.find_element_by_id("liSavePdf")
webobj_get_object = webobj_get_link.find_element_by_tag_name("a")
webobj_get_object.click()