此外殼命令的robots.txt成功HTTP 403錯誤檢索與機械化
$ curl -A "Mozilla/5.0 (X11; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0 (compatible;)" http://fifa-infinity.com/robots.txt
並打印的robots.txt。省略用戶代理選項會導致服務器發生403錯誤。檢查robots.txt文件顯示允許抓取http://www.fifa-infinity.com/board下的內容。但是,下面的失敗(Python代碼):
import logging
import mechanize
from mechanize import Browser
ua = 'Mozilla/5.0 (X11; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0 (compatible;)'
br = Browser()
br.addheaders = [('User-Agent', ua)]
br.set_debug_http(True)
br.set_debug_responses(True)
logging.getLogger('mechanize').setLevel(logging.DEBUG)
br.open('http://www.fifa-infinity.com/robots.txt')
我的控制檯上的輸出是:
No handlers could be found for logger "mechanize.cookies"
send: 'GET /robots.txt HTTP/1.1\r\nAccept-Encoding: identity\r\nHost: www.fifa-infinity.com\r\nConnection: close\r\nUser-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0 (compatible;)\r\n\r\n'
reply: 'HTTP/1.1 403 Bad Behavior\r\n'
header: Date: Wed, 13 Feb 2013 15:37:16 GMT
header: Server: Apache
header: X-Powered-By: PHP/5.2.17
header: Vary: User-Agent,Accept-Encoding
header: Connection: close
header: Transfer-Encoding: chunked
header: Content-Type: text/html
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/moshev/Projects/forumscrawler/lib/python2.7/site-packages/mechanize/_mechanize.py", line 203, in open
return self._mech_open(url, data, timeout=timeout)
File "/home/moshev/Projects/forumscrawler/lib/python2.7/site-packages/mechanize/_mechanize.py", line 255, in _mech_open
raise response
mechanize._response.httperror_seek_wrapper: HTTP Error 403: Bad Behavior
奇怪的是,使用curl沒有設置用戶代理結果「403:禁止」,而比「403:不良行爲」。
我在某種程度上做錯了什麼,或者這是機械化/ urllib2中的錯誤?我不明白如何簡單地讓robots.txt成爲「不良行爲」?
和頭的另一個例子嗅探壞了。另一方面,服務器正在更多地查看UA代理,檢查curl發送的是什麼頭,將它們與'mechanize'正在使用的內容進行比較,調整,重複。這是*不是* python問題。 – 2013-02-13 15:48:58
此問題與[urllib2.HTTPError:HTTP Error 403:Forbidden]非常類似(https://stackoverflow.com/questions/13303449/urllib2-httperror-http-error-403-forbidden/46213623#46213623) – djinn 2017-11-06 16:31:30