Created
November 16, 2010 15:08
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[Python] Simple backend for nginx memcached module
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""" | |
Simple backend for nginx memcached module | |
Written by Wojtek 'suda' Siudzinski <admin@suda.pl> | |
Gist: https://gist.github.com/701904 | |
Nginx config: | |
location /static { | |
add_header X-Origin Memcached; | |
expires modified +48h; | |
set $memcached_key $uri; | |
memcached_pass 127.0.0.1:11211; | |
error_page 404 = @static; | |
} | |
location @static { | |
add_header X-Origin Disk; | |
proxy_set_header X-Memcached-Path /var/www/example.com; | |
proxy_set_header X-Memcached-Key $uri; | |
proxy_set_header X-Memcached-Expires 86400; | |
proxy_pass http://localhost:9876; | |
} | |
Check "X-Origin" header to see where your static files came from | |
""" | |
import memcache, urllib, os | |
import SocketServer, SimpleHTTPServer | |
from BaseHTTPServer import HTTPServer | |
from SocketServer import ThreadingMixIn | |
PORT = 9876 | |
DEBUG = False | |
MEMCACHED = ['127.0.0.1:11211'] | |
class Proxy(SimpleHTTPServer.SimpleHTTPRequestHandler): | |
def do_GET(self): | |
if None != self.headers['X-Memcached-Path']: | |
path = self.headers['X-Memcached-Path']+self.path | |
if os.path.isfile(path): | |
try: | |
self.copyfile(urllib.urlopen(path), self.wfile) | |
except IOError: | |
if DEBUG: | |
print "Error: cannot write stream" | |
f = open(path, 'rb') | |
mc.set(self.headers['X-Memcached-Key'], f.read(), int(self.headers['X-Memcached-Expires'])) | |
f.close() | |
if DEBUG: | |
print path+" stored for "+self.headers['X-Memcached-Expires']+"s" | |
else: | |
if DEBUG: | |
print path+" not found or is a directory" | |
def finish(self): | |
try: | |
SimpleHTTPServer.SimpleHTTPRequestHandler.finish(self) | |
except IOError, e: | |
if e.errno != 32 and DEBUG: | |
print 'Error: broken pipe' | |
class ThreadedHTTPServer(ThreadingMixIn, HTTPServer): | |
"""Handle requests in a separate thread.""" | |
if __name__ == '__main__': | |
mc = memcache.Client(MEMCACHED, debug=0) | |
httpd = ThreadedHTTPServer(('', PORT), Proxy) | |
httpd.daemon_threads = True | |
httpd.allow_reuse_address = 1 | |
if DEBUG: | |
print "Serving at port", PORT | |
httpd.serve_forever() |
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