# encoding: utf-8 # FastCGI-to-WSGI bridge for files/pipes transport (not socket) # # Copyright (c) 2002, 2003, 2005, 2006 Allan Saddi # Copyright (c) 2011 Ruslan Keba # Copyright (c) 2012 Antoine Martin # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. # __author__ = 'Allan Saddi , Ruslan Keba , Antoine Martin ' import msvcrt import struct import os import os.path import logging import sys import traceback import datetime import urllib from optparse import OptionParser from django.core.management.base import BaseCommand from django.conf import settings # Constants from the spec. FCGI_LISTENSOCK_FILENO = 0 FCGI_HEADER_LEN = 8 FCGI_VERSION_1 = 1 FCGI_BEGIN_REQUEST = 1 FCGI_ABORT_REQUEST = 2 FCGI_END_REQUEST = 3 FCGI_PARAMS = 4 FCGI_STDIN = 5 FCGI_STDOUT = 6 FCGI_STDERR = 7 FCGI_DATA = 8 FCGI_GET_VALUES = 9 FCGI_GET_VALUES_RESULT = 10 FCGI_UNKNOWN_TYPE = 11 FCGI_MAXTYPE = FCGI_UNKNOWN_TYPE FCGI_NULL_REQUEST_ID = 0 FCGI_KEEP_CONN = 1 FCGI_RESPONDER = 1 FCGI_AUTHORIZER = 2 FCGI_FILTER = 3 FCGI_REQUEST_COMPLETE = 0 FCGI_CANT_MPX_CONN = 1 FCGI_OVERLOADED = 2 FCGI_UNKNOWN_ROLE = 3 FCGI_MAX_CONNS = 'FCGI_MAX_CONNS' FCGI_MAX_REQS = 'FCGI_MAX_REQS' FCGI_MPXS_CONNS = 'FCGI_MPXS_CONNS' FCGI_Header = '!BBHHBx' FCGI_BeginRequestBody = '!HB5x' FCGI_EndRequestBody = '!LB3x' FCGI_UnknownTypeBody = '!B7x' FCGI_EndRequestBody_LEN = struct.calcsize(FCGI_EndRequestBody) FCGI_UnknownTypeBody_LEN = struct.calcsize(FCGI_UnknownTypeBody) FCGI_HEADER_NAMES = ( 'ERROR TYPE: 0', 'BEGIN_REQUEST', 'ABORT_REQUEST', 'END_REQUEST', 'PARAMS', 'STDIN', 'STDOUT', 'STDERR', 'DATA', 'GET_VALUES', 'GET_VALUES_RESULT', 'UNKNOWN_TYPE', ) FCGI_DEBUG = getattr(settings, 'FCGI_DEBUG', settings.DEBUG) FCGI_LOG = getattr(settings, 'FCGI_LOG', FCGI_DEBUG) FCGI_LOG_PATH = getattr(settings, 'FCGI_LOG_PATH', os.path.dirname(os.path.abspath(sys.argv[0]))) class InputStream(object): """ File-like object representing FastCGI input streams (FCGI_STDIN and FCGI_DATA). Supports the minimum methods required by WSGI spec. """ def __init__(self, conn): self._conn = conn # See Server. self._shrinkThreshold = conn.server.inputStreamShrinkThreshold self._buf = '' self._bufList = [] self._pos = 0 # Current read position. self._avail = 0 # Number of bytes currently available. self._eof = False # True when server has sent EOF notification. def _shrinkBuffer(self): """Gets rid of already read data (since we can't rewind).""" if self._pos >= self._shrinkThreshold: self._buf = self._buf[self._pos:] self._avail -= self._pos self._pos = 0 assert self._avail >= 0 def _waitForData(self): """Waits for more data to become available.""" self._conn.process_input() def read(self, n=-1): if self._pos == self._avail and self._eof: return '' while True: if n < 0 or (self._avail - self._pos) < n: # Not enough data available. if self._eof: # And there's no more coming. newPos = self._avail break else: # Wait for more data. self._waitForData() continue else: newPos = self._pos + n break # Merge buffer list, if necessary. if self._bufList: self._buf += ''.join(self._bufList) self._bufList = [] r = self._buf[self._pos:newPos] self._pos = newPos self._shrinkBuffer() return r def readline(self, length=None): if self._pos == self._avail and self._eof: return '' while True: # Unfortunately, we need to merge the buffer list early. if self._bufList: self._buf += ''.join(self._bufList) self._bufList = [] # Find newline. i = self._buf.find('\n', self._pos) if i < 0: # Not found? if self._eof: # No more data coming. newPos = self._avail break else: if length is not None and len(self._buf) >= length + self._pos: newPos = self._pos + length break # Wait for more to come. self._waitForData() continue else: newPos = i + 1 break r = self._buf[self._pos:newPos] self._pos = newPos self._shrinkBuffer() return r def readlines(self, sizehint=0): total = 0 lines = [] line = self.readline() while line: lines.append(line) total += len(line) if 0 < sizehint <= total: break line = self.readline() return lines def __iter__(self): return self def next(self): r = self.readline() if not r: raise StopIteration return r def add_data(self, data): if not data: self._eof = True else: self._bufList.append(data) self._avail += len(data) class OutputStream(object): """ FastCGI output stream (FCGI_STDOUT/FCGI_STDERR). By default, calls to write() or writelines() immediately result in Records being sent back to the server. Buffering should be done in a higher level! """ def __init__(self, conn, req, type, buffered=False): self._conn = conn self._req = req self._type = type self._buffered = buffered self._bufList = [] # Used if buffered is True self.dataWritten = False self.closed = False def _write(self, data): length = len(data) while length: to_write = min(length, self._req.server.maxwrite - FCGI_HEADER_LEN) rec = Record(self._type, self._req.requestId) rec.contentLength = to_write rec.contentData = data[:to_write] self._conn.writeRecord(rec) data = data[to_write:] length -= to_write def write(self, data): assert not self.closed if not data: return self.dataWritten = True if self._buffered: self._bufList.append(data) else: self._write(data) def writelines(self, lines): assert not self.closed for line in lines: self.write(line) def flush(self): # Only need to flush if this OutputStream is actually buffered. if self._buffered: data = ''.join(self._bufList) self._bufList = [] self._write(data) # Though available, the following should NOT be called by WSGI apps. def close(self): """Sends end-of-stream notification, if necessary.""" if not self.closed and self.dataWritten: self.flush() rec = Record(self._type, self._req.requestId) self._conn.writeRecord(rec) self.closed = True class TeeOutputStream(object): """ Simple wrapper around two or more output file-like objects that copies written data to all streams. """ def __init__(self, streamList): self._streamList = streamList def write(self, data): for f in self._streamList: f.write(data) def writelines(self, lines): for line in lines: self.write(line) def flush(self): for f in self._streamList: f.flush() class StdoutWrapper(object): """ Wrapper for sys.stdout so we know if data has actually been written. """ def __init__(self, stdout): self._file = stdout self.dataWritten = False def write(self, data): if data: self.dataWritten = True self._file.write(data) def writelines(self, lines): for line in lines: self.write(line) def __getattr__(self, name): return getattr(self._file, name) def decode_pair(s, pos=0): """ Decodes a name/value pair. The number of bytes decoded as well as the name/value pair are returned. """ nameLength = ord(s[pos]) if nameLength & 128: nameLength = struct.unpack('!L', s[pos:pos + 4])[0] & 0x7fffffff pos += 4 else: pos += 1 valueLength = ord(s[pos]) if valueLength & 128: valueLength = struct.unpack('!L', s[pos:pos + 4])[0] & 0x7fffffff pos += 4 else: pos += 1 name = s[pos:pos + nameLength] pos += nameLength value = s[pos:pos + valueLength] pos += valueLength return pos, (name, value) def encode_pair(name, value): """ Encodes a name/value pair. The encoded string is returned. """ nameLength = len(name) if nameLength < 128: s = chr(nameLength) else: s = struct.pack('!L', nameLength | 0x80000000L) valueLength = len(value) if valueLength < 128: s += chr(valueLength) else: s += struct.pack('!L', valueLength | 0x80000000L) return s + name + value class Record(object): """ A FastCGI Record. Used for encoding/decoding records. """ def __init__(self, type=FCGI_UNKNOWN_TYPE, requestId=FCGI_NULL_REQUEST_ID): self.version = FCGI_VERSION_1 self.type = type self.requestId = requestId self.contentLength = 0 self.paddingLength = 0 self.contentData = '' def _recvall(stream, length): """ Attempts to receive length bytes from a socket, blocking if necessary. (Socket may be blocking or non-blocking.) """ if FCGI_DEBUG: logging.debug('_recvall (%d)' % (length)) dataList = [] recvLen = 0 while length: data = stream.read(length) if not data: # EOF break dataList.append(data) dataLen = len(data) recvLen += dataLen length -= dataLen #if FCGI_DEBUG: logging.debug('recived length = %d' % (recvLen)) return ''.join(dataList), recvLen _recvall = staticmethod(_recvall) def read(self, stream): """Read and decode a Record from a socket.""" try: header, length = self._recvall(stream, FCGI_HEADER_LEN) except: raise raise EOFError if length < FCGI_HEADER_LEN: raise EOFError if FCGI_DEBUG: hex = '' for s in header: hex += '%x|' % (ord(s)) self.version, self.type, self.requestId, self.contentLength,\ self.paddingLength = struct.unpack(FCGI_Header, header) if FCGI_DEBUG: logging.debug('recv fcgi header: %s %s len: %d' % (FCGI_HEADER_NAMES[self.type] if self.type is not None and self.type < FCGI_MAXTYPE else FCGI_HEADER_NAMES[FCGI_MAXTYPE], hex, len(header))) if self.contentLength: try: self.contentData, length = self._recvall(stream, self.contentLength) except: raise EOFError if length < self.contentLength: raise EOFError if self.paddingLength: try: self._recvall(stream, self.paddingLength) except: raise EOFError def _sendall(stream, data): """ Writes data to a socket and does not return until all the data is sent. """ if FCGI_DEBUG: logging.debug('_sendall: len=%d' % len(data)) stream.write(data) _sendall = staticmethod(_sendall) def write(self, stream): """Encode and write a Record to a socket.""" if not self.contentLength: self.paddingLength = 8 else: self.paddingLength = -self.contentLength & 7 header = struct.pack(FCGI_Header, self.version, self.type, self.requestId, self.contentLength, self.paddingLength) if FCGI_DEBUG: logging.debug('send fcgi header: %s' % FCGI_HEADER_NAMES[self.type] if self.type is not None and self.type < FCGI_MAXTYPE else FCGI_HEADER_NAMES[FCGI_MAXTYPE]) self._sendall(stream, header) if self.contentLength: if FCGI_DEBUG: logging.debug('send CONTENT') self._sendall(stream, self.contentData) if self.paddingLength: if FCGI_DEBUG: logging.debug('send PADDING') self._sendall(stream, '\x00' * self.paddingLength) class Request(object): """ Represents a single FastCGI request. These objects are passed to your handler and is the main interface between your handler and the fcgi module. The methods should not be called by your handler. However, server, params, stdin, stdout, stderr, and data are free for your handler's use. """ def __init__(self, conn, inputStreamClass): self._conn = conn self.server = conn.server self.params = {} self.stdin = inputStreamClass(conn) self.stdout = OutputStream(conn, self, FCGI_STDOUT) self.stderr = OutputStream(conn, self, FCGI_STDERR) self.data = inputStreamClass(conn) def run(self): """Runs the handler, flushes the streams, and ends the request.""" try: protocolStatus, appStatus = self.server.handler(self) except Exception, instance: if FCGI_DEBUG: logging.error(traceback.format_exc()) raise # TODO: fix it #self.stderr.flush() #if not self.stdout.dataWritten: # self.server.error(self) #protocolStatus, appStatus = FCGI_REQUEST_COMPLETE, 0 if FCGI_DEBUG: logging.debug('protocolStatus = %d, appStatus = %d' % (protocolStatus, appStatus)) self._flush() self._end(appStatus, protocolStatus) def _end(self, appStatus=0L, protocolStatus=FCGI_REQUEST_COMPLETE): self._conn.end_request(self, appStatus, protocolStatus) def _flush(self): self.stdout.flush() self.stderr.flush() class Connection(object): """ A Connection with the web server. Each Connection is associated with a single socket (which is connected to the web server) and is responsible for handling all the FastCGI message processing for that socket. """ _multiplexed = False _inputStreamClass = InputStream def __init__(self, stdin, stdout, server): self._stdin = stdin self._stdout = stdout self.server = server # Active Requests for this Connection, mapped by request ID. self._requests = {} def run(self): """Begin processing data from the socket.""" self._keepGoing = True while self._keepGoing: try: self.process_input() except KeyboardInterrupt: break #except EOFError, inst: # raise # if FCGI_DEBUG: logging.error(str(inst)) # break def process_input(self): """Attempt to read a single Record from the socket and process it.""" # Currently, any children Request threads notify this Connection # that it is no longer needed by closing the Connection's socket. # We need to put a timeout on select, otherwise we might get # stuck in it indefinitely... (I don't like this solution.) if not self._keepGoing: return rec = Record() rec.read(self._stdin) if rec.type == FCGI_GET_VALUES: self._do_get_values(rec) elif rec.type == FCGI_BEGIN_REQUEST: self._do_begin_request(rec) elif rec.type == FCGI_ABORT_REQUEST: self._do_abort_request(rec) elif rec.type == FCGI_PARAMS: self._do_params(rec) elif rec.type == FCGI_STDIN: self._do_stdin(rec) elif rec.type == FCGI_DATA: self._do_data(rec) elif rec.requestId == FCGI_NULL_REQUEST_ID: self._do_unknown_type(rec) else: # Need to complain about this. pass def writeRecord(self, rec): """ Write a Record to the socket. """ rec.write(self._stdout) def end_request(self, req, appStatus=0L, protocolStatus=FCGI_REQUEST_COMPLETE, remove=True): """ End a Request. Called by Request objects. An FCGI_END_REQUEST Record is sent to the web server. If the web server no longer requires the connection, the socket is closed, thereby ending this Connection (run() returns). """ # write empty packet to stdin rec = Record(FCGI_STDOUT, req.requestId) rec.contentData = '' rec.contentLength = 0 self.writeRecord(rec) # write end request rec = Record(FCGI_END_REQUEST, req.requestId) rec.contentData = struct.pack(FCGI_EndRequestBody, appStatus, protocolStatus) rec.contentLength = FCGI_EndRequestBody_LEN self.writeRecord(rec) if remove: if FCGI_DEBUG: logging.debug('end_request: removing request from list') del self._requests[req.requestId] if FCGI_DEBUG: logging.debug('end_request: flags = %d' % req.flags) if not (req.flags & FCGI_KEEP_CONN) and not self._requests: if FCGI_DEBUG: logging.debug('end_request: set _keepGoing = False') self._keepGoing = False def _do_get_values(self, inrec): """Handle an FCGI_GET_VALUES request from the web server.""" outrec = Record(FCGI_GET_VALUES_RESULT) pos = 0 while pos < inrec.contentLength: pos, (name, value) = decode_pair(inrec.contentData, pos) cap = self.server.capability.get(name) if cap is not None: outrec.contentData += encode_pair(name, str(cap)) outrec.contentLength = len(outrec.contentData) self.writeRecord(outrec) def _do_begin_request(self, inrec): """Handle an FCGI_BEGIN_REQUEST from the web server.""" role, flags = struct.unpack(FCGI_BeginRequestBody, inrec.contentData) req = self.server.request_class(self, self._inputStreamClass) req.requestId, req.role, req.flags = inrec.requestId, role, flags req.aborted = False if not self._multiplexed and self._requests: # Can't multiplex requests. self.end_request(req, 0L, FCGI_CANT_MPX_CONN, remove=False) else: self._requests[inrec.requestId] = req def _do_abort_request(self, inrec): """ Handle an FCGI_ABORT_REQUEST from the web server. We just mark a flag in the associated Request. """ req = self._requests.get(inrec.requestId) if req is not None: req.aborted = True def _start_request(self, req): """Run the request.""" # Not multiplexed, so run it inline. req.run() def _do_params(self, inrec): """ Handle an FCGI_PARAMS Record. If the last FCGI_PARAMS Record is received, start the request. """ req = self._requests.get(inrec.requestId) if req is not None: if inrec.contentLength: pos = 0 while pos < inrec.contentLength: pos, (name, value) = decode_pair(inrec.contentData, pos) req.params[name] = value def _do_stdin(self, inrec): """Handle the FCGI_STDIN stream.""" req = self._requests.get(inrec.requestId) if inrec.contentLength: if req is not None: req.stdin.add_data(inrec.contentData) else: self._start_request(req) def _do_data(self, inrec): """Handle the FCGI_DATA stream.""" req = self._requests.get(inrec.requestId) if req is not None: req.data.add_data(inrec.contentData) def _do_unknown_type(self, inrec): """Handle an unknown request type. Respond accordingly.""" outrec = Record(FCGI_UNKNOWN_TYPE) outrec.contentData = struct.pack(FCGI_UnknownTypeBody, inrec.type) outrec.contentLength = FCGI_UnknownTypeBody_LEN self.writeRecord(outrec) class FCGIServer(object): request_class = Request maxwrite = 8192 inputStreamShrinkThreshold = 102400 - 8192 def __init__(self, application, environ=None, multithreaded=False, multiprocess=False, debug=False, roles=(FCGI_RESPONDER,), app_root=None): if environ is None: environ = {} self.application = application self.environ = environ self.multithreaded = multithreaded self.multiprocess = multiprocess self.debug = debug self.roles = roles self._connectionClass = Connection self.capability = { # If threads aren't available, these are pretty much correct. FCGI_MAX_CONNS: 1, FCGI_MAX_REQS: 1, FCGI_MPXS_CONNS: 0 } self.app_root = app_root def run(self): msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY) stdin = sys.stdin stdout = os.fdopen(sys.stdin.fileno(), 'w', 0) conn = Connection(stdin, stdout, self) conn.run() def handler(self, req): """Special handler for WSGI.""" if req.role not in self.roles: return FCGI_UNKNOWN_ROLE, 0 # Mostly taken from example CGI gateway. environ = req.params environ.update(self.environ) environ['wsgi.version'] = (1, 0) environ['wsgi.input'] = req.stdin stderr = TeeOutputStream((sys.stderr, req.stderr)) environ['wsgi.errors'] = stderr environ['wsgi.multithread'] = False environ['wsgi.multiprocess'] = False environ['wsgi.run_once'] = False if environ.get('HTTPS', 'off') in ('on', '1'): environ['wsgi.url_scheme'] = 'https' else: environ['wsgi.url_scheme'] = 'http' self._sanitizeEnv(environ) headers_set = [] headers_sent = [] result = None def write(data): assert type(data) is str, 'write() argument must be string' assert headers_set, 'write() before start_response()' if not headers_sent: status, responseHeaders = headers_sent[:] = headers_set found = False for header, value in responseHeaders: if header.lower() == 'content-length': found = True break if not found and result is not None: try: if len(result) == 1: responseHeaders.append(('Content-Length', str(len(data)))) except: pass s = 'Status: %s\r\n' % status for header in responseHeaders: s += '%s: %s\r\n' % header s += '\r\n' req.stdout.write(s) req.stdout.write(data) req.stdout.flush() def start_response(status, response_headers, exc_info=None): if exc_info: try: if headers_sent: # Re-raise if too late raise exc_info[0], exc_info[1], exc_info[2] finally: exc_info = None # avoid dangling circular ref else: assert not headers_set, 'Headers already set!' assert type(status) is str, 'Status must be a string' assert len(status) >= 4, 'Status must be at least 4 characters' assert int(status[:3]), 'Status must begin with 3-digit code' assert status[3] == ' ', 'Status must have a space after code' assert type(response_headers) is list, 'Headers must be a list' if FCGI_DEBUG: logging.debug('response headers:') for name, val in response_headers: assert type(name) is str, 'Header name "%s" must be a string' % name assert type(val) is str, 'Value of header "%s" must be a string' % name logging.debug('%s: %s' % (name, val)) headers_set[:] = [status, response_headers] return write try: try: result = self.application(environ, start_response) try: for data in result: if data: write(data) if not headers_sent: write('') # in case body was empty finally: #if hasattr(result, 'close'): # result.close() pass #except socket.error, e: # if e[0] != errno.EPIPE: # raise # Don't let EPIPE propagate beyond server except: raise finally: pass return FCGI_REQUEST_COMPLETE, 0 def _sanitizeEnv(self, environ): """Ensure certain values are present, if required by WSGI.""" if FCGI_DEBUG: logging.debug('raw envs: {0}'.format(environ)) #if not environ.has_key('SCRIPT_NAME'): # environ['SCRIPT_NAME'] = '' # TODO: fix for django environ['SCRIPT_NAME'] = '' reqUri = None if environ.has_key('REQUEST_URI'): reqUri = environ['REQUEST_URI'].split('?', 1) if not environ.has_key('PATH_INFO') or not environ['PATH_INFO']: if reqUri is not None: environ['PATH_INFO'] = reqUri[0] else: environ['PATH_INFO'] = '' # convert %XX to python unicode environ['PATH_INFO'] = urllib.unquote(environ['PATH_INFO']) # process app_root if self.app_root and environ['PATH_INFO'].startswith(self.app_root): environ['PATH_INFO'] = environ['PATH_INFO'][len(self.app_root):] if not environ.has_key('QUERY_STRING') or not environ['QUERY_STRING']: if reqUri is not None and len(reqUri) > 1: environ['QUERY_STRING'] = reqUri[1] else: environ['QUERY_STRING'] = '' # If any of these are missing, it probably signifies a broken # server... for name, default in [('REQUEST_METHOD', 'GET'), ('SERVER_NAME', 'localhost'), ('SERVER_PORT', '80'), ('SERVER_PROTOCOL', 'HTTP/1.0')]: if not environ.has_key(name): environ['wsgi.errors'].write('%s: missing FastCGI param %s ' 'required by WSGI!\n' % (self.__class__.__name__, name)) environ[name] = default def error(self, req): """ Called by Request if an exception occurs within the handler. May and should be overridden. """ if self.debug: import cgitb req.stdout.write('Status: 500 Internal Server Error\r\n' + 'Content-Type: text/html\r\n\r\n' + cgitb.html(sys.exc_info())) else: errorpage = """ Unhandled Exception

Unhandled Exception

An unhandled exception was thrown by the application.

""" req.stdout.write('Status: 500 Internal Server Error\r\n' + 'Content-Type: text/html\r\n\r\n' + errorpage) def example_application(environ, start_response): '''example wsgi app which outputs wsgi environment''' logging.debug('wsgi app started') data = '' env_keys = environ.keys() env_keys.sort() for e in env_keys: data += '%s: %s\n' % (e, environ[e]) data += 'sys.version: '+sys.version+'\n' start_response('200 OK', [('Content-Type', 'text/plain'), ('Content-Length', str(len(data)))]) yield data def run_example_app(): if FCGI_DEBUG: logging.info('run_fcgi: STARTED') FCGIServer(example_application).run() if FCGI_DEBUG: logging.info('run_fcgi: EXITED') def run_django_app(django_settings_module, django_root): '''run django app by django_settings_module, django_settings_module can be python path or physical path ''' if os.path.exists(django_settings_module): # this is physical path app_path, app_settings = os.path.split(django_settings_module) # add diretory to PYTHONPATH app_dir = os.path.dirname(app_path) if app_dir not in sys.path: sys.path.append(app_dir) if FCGI_DEBUG: logging.debug('%s added to PYTHONPATH' % app_dir) # cut .py extension in module if app_settings.endswith('.py'): app_settings = app_settings[:-3] # get python path to settings settings_module = '%s.%s' % (os.path.basename(app_path), app_settings) else: #consider that django_settings_module is valid python path settings_module = django_settings_module os.environ['DJANGO_SETTINGS_MODULE'] = settings_module if FCGI_DEBUG: logging.info('DJANGO_SETTINGS_MODULE set to %s' % settings_module) try: from django.core.handlers.wsgi import WSGIHandler except ImportError: if FCGI_DEBUG: logging.error('Could not import django.core.handlers.wsgi module. Check that django is installed and in PYTHONPATH.') raise FCGIServer(WSGIHandler(), app_root=django_root).run() class Command(BaseCommand): args = '[root_path]' help = '''Run as a fcgi server''' def handle(self, *args, **options): django_root=args[0] if args else None if FCGI_LOG: logging.basicConfig( filename=os.path.join(FCGI_LOG_PATH, 'fcgi_%s_%d.log' %(datetime.datetime.now().strftime('%y%m%d_%H%M%S'), os.getpid())), filemode='w', format='%(asctime)s [%(levelname)-5s] %(message)s', level=logging.DEBUG) try: from django.core.handlers.wsgi import WSGIHandler except ImportError: if FCGI_DEBUG: logging.error('Could not import django.core.handlers.wsgi module. Check that django is installed and in PYTHONPATH.') raise FCGIServer(WSGIHandler(), app_root=django_root).run() if __name__ == '__main__': # compile self compiled = os.path.split(__file__)[-1].replace('.py', '.pyc' if FCGI_DEBUG else '.pyo') if not os.path.exists(compiled): import py_compile try: py_compile.compile(__file__) except: pass # enable logging if FCGI_DEBUG: logging.basicConfig( filename=os.path.join(FCGI_LOG_PATH, 'fcgi_%s_%d.log' %(datetime.datetime.now().strftime('%y%m%d_%H%M%S'), os.getpid())), filemode='w', format='%(asctime)s [%(levelname)-5s] %(message)s', level=logging.DEBUG) # If we are inside a subdirectory of a django app, set the default Djan default_django_settings_module=None parent_settings_file = os.path.join(os.path.dirname(os.path.dirname(__file__)), 'settings.py') if os.path.exists(parent_settings_file): default_django_settings_module = os.path.abspath(parent_settings_file) if FCGI_DEBUG: logging.info('default DJANGO_SETTINGS_MODULE set to %s' % default_django_settings_module) # parse options usage = "usage: %prog [options]" parser = OptionParser(usage) parser.add_option("", "--django-settings-module", dest="django_settings_module", help="python or physical path to Django settings module") parser.add_option("", "--django-root", dest="django_root", help="strip this string from the front of any URLs before matching them against your URLconf patterns.") parser.set_defaults( django_settings_module = os.environ.get('DJANGO_SETTINGS_MODULE', default_django_settings_module), django_root = os.environ.get('django.root', None) ) (options, args) = parser.parse_args() # check django if options.django_settings_module: run_django_app(options.django_settings_module, options.django_root) else: # run example app run_example_app()