创建cgi.FieldStorage对象时超时错误
嘿，有人知道我这里遇到的超时错误是什么吗：
错误追踪信息：
File "/array/purato/python2.6/lib/python2.6/site-packages/cherrypy/_cprequest.py", line 606, in respond
cherrypy.response.body = self.handler()
File "/array/purato/python2.6/lib/python2.6/site-packages/cherrypy/_cpdispatch.py", line 25, in __call__
return self.callable(*self.args, **self.kwargs)
File "sync_server.py", line 853, in put_file
return RequestController_v1_0.put_file(self, *args, **kw)
File "sync_server.py", line 409, in put_file
saved_path, tgt_path, root_folder = self._save_file(client_id, theFile)
File "sync_server.py", line 404, in _save_file
saved_path, tgt_path, root_folder = get_posted_file(cherrypy.request, 'theFile', staging_path)
File "sync_server.py", line 1031, in get_posted_file
, keep_blank_values=True)
File "/array/purato/python2.6/lib/python2.6/cgi.py", line 496, in __init__
self.read_multi(environ, keep_blank_values, strict_parsing)
File "/array/purato/python2.6/lib/python2.6/cgi.py", line 620, in read_multi
environ, keep_blank_values, strict_parsing)
File "/array/purato/python2.6/lib/python2.6/cgi.py", line 498, in __init__
self.read_single()
File "/array/purato/python2.6/lib/python2.6/cgi.py", line 635, in read_single
self.read_lines()
File "/array/purato/python2.6/lib/python2.6/cgi.py", line 657, in read_lines
self.read_lines_to_outerboundary()
File "/array/purato/python2.6/lib/python2.6/cgi.py", line 685, in read_lines_to_outerboundary
line = self.fp.readline(1<<16)
File "/array/purato/python2.6/lib/python2.6/site-packages/cherrypy/wsgiserver/__init__.py", line 206, in readline
data = self.rfile.readline(size)
File "/array/purato/python2.6/lib/python2.6/site-packages/cherrypy/wsgiserver/__init__.py", line 868, in readline
data = self.recv(self._rbufsize)
File "/array/purato/python2.6/lib/python2.6/site-packages/cherrypy/wsgiserver/__init__.py", line 747, in recv
return self._sock.recv(size)
timeout: timed out
这是正在被调用的代码：
def get_posted_file(request, form_field_name, tgt_folder, tgt_fname=None):
logger.debug('get_posted_file: %s' % request.headers['Last-Modified'])
lowerHeaderMap = {}
for key, value in request.headers.items():
lowerHeaderMap[key.lower()] = value
---> dataDict = TmpFieldStorage(fp=request.rfile, headers=lowerHeaderMap, environ={'REQUEST_METHOD':'POST'}
, keep_blank_values=True)
还有：
class TmpFieldStorage(cgi.FieldStorage):
"""
Use a named temporary file to allow creation of hard link to final destination
"""
def make_file(self, binary=None):
tmp_folder = os.path.join(get_filer_root(cherrypy.request.login), 'sync_tmp')
if not os.path.exists(tmp_folder):
os.makedirs(tmp_folder)
return tempfile.NamedTemporaryFile(dir=tmp_folder)
1 个回答
0
environ={'REQUEST_METHOD':'POST'}
这个 environ 看起来有点不够用。根据CGI的规范，里面应该有更多的环境变量，而这些变量是 cgi 模块需要的。
特别是，缺少了 CONTENT_LENGTH 这个头信息。如果没有这个信息，cgi 就会默认读取整个数据流，直到遇到文件结束符（EOF）。但是因为这个数据流可能是网络流，而不是文件，所以不会有EOF（或者说，提交结束时并没有EOF），这样表单读取器就会一直在那儿等着更多输入，但实际上是不会再有输入的。最终会导致超时。