Robotframework 如何在robot框架中启用使用无头chrome浏览器下载文件?
如何使用chrome开发工具中的Page.setDownloadBehavior进行传递,以便使用下面的代码设置headless chrome的下载行为Robotframework 如何在robot框架中启用使用无头chrome浏览器下载文件?,robotframework,headless-browser,google-chrome-headless,Robotframework,Headless Browser,Google Chrome Headless,如何使用chrome开发工具中的Page.setDownloadBehavior进行传递,以便使用下面的代码设置headless chrome的下载行为 Create Chrome Browser [Arguments] ${link_to_open} ${chrome_options}= Evaluate sys.modules['selenium.webdriver'].ChromeOptions() sys, selenium.webdriv
Create Chrome Browser
[Arguments] ${link_to_open}
${chrome_options}= Evaluate sys.modules['selenium.webdriver'].ChromeOptions() sys, selenium.webdriver
${prefs}= Create Dictionary download.default_directory=${DOWNLOADS_DIR}
Call Method ${chrome options} add_argument headless
Call Method ${chrome options} add_argument disable-gpu
Selenium2Library.Go To ${link_to_open}
在无头模式下尝试使用Chrome下载文件时,似乎有“安全功能”。这将在本节中进一步讨论。这就指向了StackOverflow的答案。在这个答案中,给出了一个Python示例(),它可以轻松地转换为Robot框架库: 无头下载.py
class headless_download(object):
ROBOT_LIBRARY_VERSION = 1.0
def __init__(self):
pass
def enable_download_in_headless_chrome(self, driver, download_dir):
"""
there is currently a "feature" in chrome where
headless does not allow file download: https://bugs.chromium.org/p/chromium/issues/detail?id=696481
This method is a hacky work-around until the official chromedriver support for this.
Requires chrome version 62.0.3196.0 or above.
"""
# add missing support for chrome "send_command" to selenium webdriver
driver.command_executor._commands["send_command"] = ("POST", '/session/$sessionId/chromium/send_command')
params = {'cmd': 'Page.setDownloadBehavior', 'params': {'behavior': 'allow', 'downloadPath': download_dir}}
command_result = driver.execute("send_command", params)
print("response from browser:")
for key in command_result:
print("result:" + key + ":" + str(command_result[key]))
下载文件时,StackOverlow的答案非常适合此示例。添加headless模式的额外行、附加库和工作示例:
无头机器人下载
*** Settings ***
Test Teardown Close All Browsers
Library Selenium2Library
Library OperatingSystem
Library headless_download
*** Test Cases ***
Download PDF
# create unique folder
${now} Get Time epoch
${download directory} Join Path ${OUTPUT DIR} downloads_${now}
Create Directory ${download directory}
${chrome options}= Evaluate sys.modules['selenium.webdriver'].ChromeOptions() sys, selenium.webdriver
# list of plugins to disable. disabling PDF Viewer is necessary so that PDFs are saved rather than displayed
${disabled} Create List Chrome PDF Viewer
${prefs} Create Dictionary download.default_directory=${download directory} plugins.plugins_disabled=${disabled}
Call Method ${chrome options} add_experimental_option prefs ${prefs}
Call Method ${chrome options} add_argument headless
Call Method ${chrome options} add_argument disable-gpu
Create Webdriver Chrome chrome_options=${chrome options}
Go To http://www.sample-videos.com/download-sample-text-file.php
${S2L} get library instance Selenium2Library
${webdriver} Call Method ${S2L} _current_browser
Enable Download In Headless Chrome ${webdriver} ${download directory}
Click Link xpath=//a[@data='1']
# wait for download to finish
${file} Wait Until Keyword Succeeds 1 min 2 sec Download should be done ${download directory}
*** Keywords ***
Download should be done
[Arguments] ${directory}
[Documentation] Verifies that the directory has only one folder and it is not a temp file.
...
... Returns path to the file
${files} List Files In Directory ${directory}
Length Should Be ${files} 1 Should be only one file in the download folder
Should Not Match Regexp ${files[0]} (?i).*\\.tmp Chrome is still downloading a file
${file} Join Path ${directory} ${files[0]}
Log File was successfully downloaded to ${file}
[Return] ${file}
因此,简而言之:如果没有其他人对堆栈溢出的贡献,这个答案是不可能的。如果这为您提供了一个有效的解决方案,请按照其他答案的链接并对这些答案进行投票。在无头模式下尝试使用Chrome下载文件时,似乎有一个“安全功能”。这将在本节中进一步讨论。这就指向了StackOverflow的答案。在这个答案中,给出了一个Python示例(),它可以轻松地转换为Robot框架库: 无头下载.py
class headless_download(object):
ROBOT_LIBRARY_VERSION = 1.0
def __init__(self):
pass
def enable_download_in_headless_chrome(self, driver, download_dir):
"""
there is currently a "feature" in chrome where
headless does not allow file download: https://bugs.chromium.org/p/chromium/issues/detail?id=696481
This method is a hacky work-around until the official chromedriver support for this.
Requires chrome version 62.0.3196.0 or above.
"""
# add missing support for chrome "send_command" to selenium webdriver
driver.command_executor._commands["send_command"] = ("POST", '/session/$sessionId/chromium/send_command')
params = {'cmd': 'Page.setDownloadBehavior', 'params': {'behavior': 'allow', 'downloadPath': download_dir}}
command_result = driver.execute("send_command", params)
print("response from browser:")
for key in command_result:
print("result:" + key + ":" + str(command_result[key]))
下载文件时,StackOverlow的答案非常适合此示例。添加headless模式的额外行、附加库和工作示例:
无头机器人下载
*** Settings ***
Test Teardown Close All Browsers
Library Selenium2Library
Library OperatingSystem
Library headless_download
*** Test Cases ***
Download PDF
# create unique folder
${now} Get Time epoch
${download directory} Join Path ${OUTPUT DIR} downloads_${now}
Create Directory ${download directory}
${chrome options}= Evaluate sys.modules['selenium.webdriver'].ChromeOptions() sys, selenium.webdriver
# list of plugins to disable. disabling PDF Viewer is necessary so that PDFs are saved rather than displayed
${disabled} Create List Chrome PDF Viewer
${prefs} Create Dictionary download.default_directory=${download directory} plugins.plugins_disabled=${disabled}
Call Method ${chrome options} add_experimental_option prefs ${prefs}
Call Method ${chrome options} add_argument headless
Call Method ${chrome options} add_argument disable-gpu
Create Webdriver Chrome chrome_options=${chrome options}
Go To http://www.sample-videos.com/download-sample-text-file.php
${S2L} get library instance Selenium2Library
${webdriver} Call Method ${S2L} _current_browser
Enable Download In Headless Chrome ${webdriver} ${download directory}
Click Link xpath=//a[@data='1']
# wait for download to finish
${file} Wait Until Keyword Succeeds 1 min 2 sec Download should be done ${download directory}
*** Keywords ***
Download should be done
[Arguments] ${directory}
[Documentation] Verifies that the directory has only one folder and it is not a temp file.
...
... Returns path to the file
${files} List Files In Directory ${directory}
Length Should Be ${files} 1 Should be only one file in the download folder
Should Not Match Regexp ${files[0]} (?i).*\\.tmp Chrome is still downloading a file
${file} Join Path ${directory} ${files[0]}
Log File was successfully downloaded to ${file}
[Return] ${file}
因此,简而言之:如果没有其他人对堆栈溢出的贡献,这个答案是不可能的。如果这为您提供了一个有效的解决方案,请按照其他答案的链接并对这些答案进行投票。嗨,a.Kootstra,我尝试了python调用,但仍然没有成功。我在日志中看到了这一点:18:08:46.018 DEBUG POST{“sessionId”:“c5aa448ceadbb7c41fb1de629a2328c”,“params”:{“downloadPath”:“C:\\Temp\\Downloads”,“behavior:“allow”},“cmd:“Page.setdownloadbbehavior”}18:08:46.034调试完成请求结果:值:无结果:状态:0这是否正常?它仍然无法下载。有人能帮我吗?您正在运行哪个版本的Selenium(2)库、Selenium Python模块和Webdriver。这是按原样运行示例时出现的错误,还是您根据自己的需要对其进行了修改?只尝试了下面的示例,但我正在从公司的intranet/内部web应用程序上下载。嗨,A.Kootstra,我尝试了python调用,但仍然没有成功。我在日志中看到了这一点:18:08:46.018 DEBUG POST{“sessionId”:“c5aa448ceadbb7c41fb1de629a2328c”,“params”:{“downloadPath”:“C:\\Temp\\Downloads”,“behavior:“allow”},“cmd:“Page.setdownloadbbehavior”}18:08:46.034调试完成请求结果:值:无结果:状态:0这是否正常?它仍然无法下载。有人能帮我吗?您正在运行哪个版本的Selenium(2)库、Selenium Python模块和Webdriver。这是按原样运行示例时出现的错误,还是您根据自己的需要对其进行了修改?仅尝试了下面的示例,但我正在从公司的intranet/internal web应用程序上下载。