def __call__(self, environ, start_response):
# For sanity's sake, we don't care about FCGI_MPXS_CONN
# (connection multiplexing). For every request, we obtain a new
# transport socket, perform the request, then discard the socket.
# This is, I believe, how mod_fastcgi does things...
sock = self._getConnection()
# Since this is going to be the only request on this connection,
# set the request ID to 1.
requestId = 1
# Begin the request
rec = Record(FCGI_BEGIN_REQUEST, requestId)
rec.contentData = struct.pack(FCGI_BeginRequestBody, FCGI_RESPONDER, 0)
rec.contentLength = FCGI_BeginRequestBody_LEN
rec.write(sock)
# Filter WSGI environ and send it as FCGI_PARAMS
if self._filterEnviron:
params = self._defaultFilterEnviron(environ)
else:
params = self._lightFilterEnviron(environ)
# TODO: Anything not from environ that needs to be sent also?
self._fcgiParams(sock, requestId, params)
self._fcgiParams(sock, requestId, {})
# Transfer wsgi.input to FCGI_STDIN
content_length = int(environ.get('CONTENT_LENGTH') or 0)
while True:
chunk_size = min(content_length, 4096)
s = environ['wsgi.input'].read(chunk_size)
content_length -= len(s)
rec = Record(FCGI_STDIN, requestId)
rec.contentData = s
rec.contentLength = len(s)
rec.write(sock)
if not s: break
# Empty FCGI_DATA stream
rec = Record(FCGI_DATA, requestId)
rec.write(sock)
# Main loop. Process FCGI_STDOUT, FCGI_STDERR, FCGI_END_REQUEST
# records from the application.
result = []
while True:
inrec = Record()
inrec.read(sock)
if inrec.type == FCGI_STDOUT:
if inrec.contentData:
result.append(inrec.contentData)
else:
# TODO: Should probably be pedantic and no longer
# accept FCGI_STDOUT records?
pass
elif inrec.type == FCGI_STDERR:
# Simply forward to wsgi.errors
environ['wsgi.errors'].write(inrec.contentData)
elif inrec.type == FCGI_END_REQUEST:
# TODO: Process appStatus/protocolStatus fields?
break
# Done with this transport socket, close it. (FCGI_KEEP_CONN was not
# set in the FCGI_BEGIN_REQUEST record we sent above. So the
# application is expected to do the same.)
sock.close()
result = ''.join(result)
# Parse response headers from FCGI_STDOUT
status = '200 OK'
headers = []
pos = 0
while True:
eolpos = result.find('\n', pos)
if eolpos < 0: break
line = result[pos:eolpos - 1]
pos = eolpos + 1
# strip in case of CR. NB: This will also strip other
# whitespace...
line = line.strip()
# Empty line signifies end of headers
if not line: break
# TODO: Better error handling
if ':' not in line:
continue
header, value = line.split(':', 1)
header = header.strip().lower()
value = value.strip()
if header == 'status':
# Special handling of Status header
status = value
if status.find(' ') < 0:
# Append a dummy reason phrase if one was not provided
status += ' FCGIApp'
else:
headers.append((header, value))
result = result[pos:]
# Set WSGI status, headers, and return result.
start_response(status, headers)
return [result]
def __call__(self, environ, start_response):
# For sanity's sake, we don't care about FCGI_MPXS_CONN
# (connection multiplexing). For every request, we obtain a new
# transport socket, perform the request, then discard the socket.
# This is, I believe, how mod_fastcgi does things...
sock = self._getConnection()
# Since this is going to be the only request on this connection,
# set the request ID to 1.
requestId = 1
# Begin the request
rec = Record(FCGI_BEGIN_REQUEST, requestId)
rec.contentData = struct.pack(FCGI_BeginRequestBody, FCGI_RESPONDER, 0)
rec.contentLength = FCGI_BeginRequestBody_LEN
rec.write(sock)
# Filter WSGI environ and send it as FCGI_PARAMS
if self._filterEnviron:
params = self._defaultFilterEnviron(environ)
else:
params = self._lightFilterEnviron(environ)
# TODO: Anything not from environ that needs to be sent also?
self._fcgiParams(sock, requestId, params)
self._fcgiParams(sock, requestId, {})
# Transfer wsgi.input to FCGI_STDIN
content_length = int(environ.get('CONTENT_LENGTH') or 0)
while True:
chunk_size = min(content_length, 4096)
s = environ['wsgi.input'].read(chunk_size)
content_length -= len(s)
rec = Record(FCGI_STDIN, requestId)
rec.contentData = s
rec.contentLength = len(s)
rec.write(sock)
if not s: break
# Empty FCGI_DATA stream
rec = Record(FCGI_DATA, requestId)
rec.write(sock)
# Main loop. Process FCGI_STDOUT, FCGI_STDERR, FCGI_END_REQUEST
# records from the application.
result = []
while True:
inrec = Record()
inrec.read(sock)
if inrec.type == FCGI_STDOUT:
if inrec.contentData:
result.append(inrec.contentData)
else:
# TODO: Should probably be pedantic and no longer
# accept FCGI_STDOUT records?
pass
elif inrec.type == FCGI_STDERR:
# Simply forward to wsgi.errors
environ['wsgi.errors'].write(inrec.contentData)
elif inrec.type == FCGI_END_REQUEST:
# TODO: Process appStatus/protocolStatus fields?
break
# Done with this transport socket, close it. (FCGI_KEEP_CONN was not
# set in the FCGI_BEGIN_REQUEST record we sent above. So the
# application is expected to do the same.)
sock.close()
result = ''.join(result)
# Parse response headers from FCGI_STDOUT
status = '200 OK'
headers = []
pos = 0
while True:
eolpos = result.find('\n', pos)
if eolpos < 0: break
line = result[pos:eolpos - 1]
pos = eolpos + 1
# strip in case of CR. NB: This will also strip other
# whitespace...
line = line.strip()
# Empty line signifies end of headers
if not line: break
# TODO: Better error handling
if ':' not in line:
continue
header, value = line.split(':', 1)
header = header.strip().lower()
value = value.strip()
if header == 'status':
# Special handling of Status header
status = value
if status.find(' ') < 0:
# Append a dummy reason phrase if one was not provided
status += ' FCGIApp'
else:
headers.append((header, value))
result = result[pos:]
# Set WSGI status, headers, and return result.
start_response(status, headers)
return [result]