问题
I use twill
to navigate on a website protected by a login form.
from twill.commands import *
go('http://www.example.com/login/index.php')
fv("login_form", "identifiant", "login")
fv("login_form", "password", "pass")
formaction("login_form", "http://www.example.com/login/control.php")
submit()
go('http://www.example.com/accueil/index.php')
On this last page I want to download an Excel file which is accessible through a div
with the following attribute:
onclick="OpenWindowFull('../util/exports/control.php?action=export','export',200,100);"
With twill
I am able to access the URL of the PHP script and show the content of the file.
go('http://www.example.com/util/exports/control.php?action=export')
show()
However a string is returned corresponding to the raw content: thus unusable. Is there a way to retrieve directly the Excel file in a way similar to urllib.urlretrieve()
?
回答1:
I managed to do it sending the cookie jar from twill
to requests
.
Nota: I could not use requests
only due to an intricate control at login (was not able to figure out the correct headers or other options).
import requests
from twill.commands import *
# showing login form with twill
go('http://www.example.com/login/index.php')
showforms()
# posting login form with twill
fv("login_form", "identifiant", "login")
fv("login_form", "password", "pass")
formaction("login_form", "http://www.example.com/login/control.php")
submit()
# getting binary content with requests using twill cookie jar
cookies = requests.utils.dict_from_cookiejar(get_browser()._session.cookies)
url = 'http://www.example.com/util/exports/control.php?action=export'
with open('out.xls', 'wb') as handle:
response = requests.get(url, stream=True, cookies=cookies)
if not response.ok:
raise Exception('Could not get file from ' + url)
for block in response.iter_content(1024):
handle.write(block)
回答2:
Another way using twill.commands.save_html
modified to write as 'wb' instead of 'w': Python 2.7 using twill, saving downloaded file properly
来源:https://stackoverflow.com/questions/37910736/python-twill-download-file-accessible-through-php-script