使用Python脚本将绝对url替换为相对url的教程
公司一个项目需要上传图片,一开始同事将图片上传后结合当前主机拼成了一个绝对的URL(http://192.168.1.1:888/m/getimg?filename=xxx.jpg由于同时给手机终端提供接口,在手机终端会引起一些bug,改完代码后要求将以前的uri替换成相对的URL(/m/getimg?filename=xxx.jpg),由于图片是用img标签嵌入到内容同时用a标签括起显示大图的,所以需要读取数据库并对内容进行替换,
脚本内容如下:
#!/usr/bin/env python
#-*- coding:utf-8 -*-
#
#
# author : cold night
# email : wh_linux@126.com
#
import pymongo
import re
from StringIO import StringIO
conn = pymongo.Connection()
db = conn.test
def replace_url():
regex = re.compile(r'([href|src])=["|\']http://.*?(/m/getimg\?.*?)["|\']')
results = db['test'].find()
db_coll = db['test']
def replace(r):
content = r.get('content')
if not content: return
content = StringIO(content)
content.seek(0)
result = StringIO()
for line in content.readlines():
t = regex.sub(r'\1="\2"', line)
result.write(t)
result.seek(0)
content = result.read()
if content:
r['content'] = content
_id = r.get('_id')
db_coll.update({'_id':_id}, r)
results = [replace(i) for i in results]
if __name__=="__main__":replace_url()