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Added UTF-8 encoding and RandomUserAgentMiddleware #8

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Added UTF-8 encoding and RandomUserAgentMiddleware #8

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9fcc399
Added UTF-8 encoding
osya Dec 17, 2014
e8a2ced
Added RandomUserAgentMiddleware
osya Dec 17, 2014
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14 changes: 14 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,8 @@ improve crawling speed.
Get your proxy list from sites like http://www.hidemyass.com/ (copy-paste into text file
and reformat to http://host:port format)

You can use RandomUserAgentMiddleware to have a random user agent every request the spider makes.

settings.py
-----------

Expand All @@ -20,6 +22,9 @@ settings.py
# Fix path to this module
'yourspider.randomproxy.RandomProxy': 100,
'scrapy.contrib.downloadermiddleware.httpproxy.HttpProxyMiddleware': 110,
'scrapy.contrib.downloadermiddleware.useragent.UserAgentMiddleware': None,
# Disable compression middleware, so the actual HTML pages are cached
'scraper.random_user_agent.RandomUserAgentMiddleware': 400,
}

# Proxy list containing entries like
Expand All @@ -29,6 +34,15 @@ settings.py
# ...
PROXY_LIST = '/path/to/proxy/list.txt'

### More comprehensive list can be found at
### http://techpatterns.com/forums/about304.html
USER_AGENT_LIST = [
'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.36 Safari/535.7',
'Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:16.0) Gecko/16.0 Firefox/16.0',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/534.55.3 (KHTML, like Gecko) Version/5.1.3 Safari/534.53.10'
]



Your spider
-----------
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12 changes: 12 additions & 0 deletions randomproxy.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
# -*- coding: utf-8 -*-

# Copyright (C) 2013 by Aivars Kalvans <[email protected]>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
Expand All @@ -22,6 +24,16 @@
import random
import base64
from scrapy import log
from scrapy.settings import USER_AGENT_LIST

class RandomUserAgentMiddleware(object):
def process_request(self, request, spider):
if random.choice(xrange(1,100)) <= 30:
log.msg('Changing UserAgent')
ua = random.choice(USER_AGENT_LIST)
if ua:
request.headers.setdefault('User-Agent', ua)
log.msg('>>>> UA changed to %s'%request.headers)

class RandomProxy(object):
def __init__(self, settings):
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