添加代理支持（使用 pycurl）

README.rst

@@ -61,6 +61,9 @@ regex
 
   When multiple version strings are found, the maximum of those is chosen.
 
+proxy
+  The HTTP proxy to use. The format is ``host:port``, e.g. ``localhost:8087``.
+
 Find with a Command
 -------------------
 Use a shell command line to get the version. The output is striped first, so trailing newlines do not bother.

get_version.py

@@ -4,6 +4,7 @@ import logging
 from functools import partial
 import queue
 import json
+import urllib.parse
 
 from pkg_resources import parse_version
 from tornado.httpclient import AsyncHTTPClient
@@ -13,6 +14,12 @@ from tornado.ioloop import IOLoop
 logger = logging.getLogger(__name__)
 handler_precedence = ('github', 'aur', 'cmd', 'regex')
 
+try:
+  import pycurl
+  AsyncHTTPClient.configure("tornado.curl_httpclient.CurlAsyncHTTPClient")
+except ImportError:
+  pycurl = None
+
 def get_version(name, conf, callback):
   g = globals()
   for key in handler_precedence:
@@ -34,9 +41,19 @@ def get_version_by_regex(name, conf, callback):
 
   encoding = conf.get('encoding', 'latin1')
   httpclient = AsyncHTTPClient()
+
+  kwargs = {}
+  if conf.get('proxy'):
+    if pycurl:
+      host, port = urllib.parse.splitport(conf['proxy'])
+      kwargs['proxy_host'] = host
+      kwargs['proxy_port'] = int(port)
+    else:
+      logger.warn('%s: proxy set but not used because pycurl is unavailable.', name)
+
   httpclient.fetch(conf['url'], partial(
     _get_version_by_regex, name, r, encoding, callback
-  ))
+  ), **kwargs)
 
 def _get_version_by_regex(name, regex, encoding, callback, res):
   body = res.body.decode(encoding)

sample_config.ini

@@ -24,3 +24,8 @@ github = lilydjwg/winterpy
 
 [nvchecker]
 github = lilydjwg/nvchecker
+
+[ssed]
+url = http://sed.sourceforge.net/grabbag/ssed/
+regex = The current version is ([\d.]+)\.
+proxy = localhost:8087