3 import sys, os, getopt, logging, collections
5 import ashd.scgi, ashd.perf, ashd.serve
12 out.write("usage: scgi-wsgi3 [-hAL] [-m PDM-SPEC] [-p MODPATH] [-T [HOST:]PORT] HANDLER-MODULE [ARGS...]\n")
15 modwsgi_compat = False
17 opts, args = getopt.getopt(sys.argv[1:], "+hALp:T:m:")
27 sk = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
28 sk.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
31 bindhost = "localhost"
35 bindport = int(a[p + 1:])
36 sk.bind((bindhost, bindport))
47 logging.basicConfig(format="scgi-wsgi3(%(name)s): %(levelname)s: %(message)s")
50 # This is suboptimal, since the socket on stdin is not necessarily
51 # AF_UNIX, but Python does not seem to offer any way around it,
53 sk = socket.fromfd(0, socket.AF_UNIX, socket.SOCK_STREAM)
56 handlermod = __import__(args[0], fromlist = ["dummy"])
57 except ImportError as exc:
58 sys.stderr.write("scgi-wsgi3: handler %s not found: %s\n" % (args[0], exc.args[0]))
60 if not modwsgi_compat:
61 if not hasattr(handlermod, "wmain"):
62 sys.stderr.write("scgi-wsgi3: handler %s has no `wmain' function\n" % args[0])
64 handler = handlermod.wmain(*args[1:])
66 if not hasattr(handlermod, "application"):
67 sys.stderr.write("scgi-wsgi3: handler %s has no `application' object\n" % args[0])
69 handler = handlermod.application
73 env = ashd.scgi.decodehead(head, "utf-8")
74 env["wsgi.uri_encoding"] = "utf-8"
76 env = ashd.scgi.decodehead(head, "latin-1")
77 env["wsgi.uri_encoding"] = "latin-1"
78 env["wsgi.version"] = 1, 0
79 if "HTTP_X_ASH_PROTOCOL" in env:
80 env["wsgi.url_scheme"] = env["HTTP_X_ASH_PROTOCOL"]
82 env["wsgi.url_scheme"] = "https"
84 env["wsgi.url_scheme"] = "http"
85 env["wsgi.input"] = sk
86 env["wsgi.errors"] = sys.stderr
87 env["wsgi.multithread"] = True
88 env["wsgi.multiprocess"] = False
89 env["wsgi.run_once"] = False
93 if isinstance(thing, collections.ByteString):
96 return str(thing).encode("latin-1")
98 reqhandler = ashd.serve.freethread()
100 class request(ashd.serve.wsgirequest):
101 def __init__(self, *, sk, **kw):
102 super().__init__(**kw)
106 fsk = self.sk.dup().makefile("rwb")
108 return mkenv(ashd.scgi.readhead(fsk), fsk)
112 def handlewsgi(self, env, startreq):
113 return handler(env, startreq)
116 return self.sk.fileno()
118 def writehead(self, status, headers):
119 w = self.buffer.extend
120 w(b"Status: " + recode(status) + b"\n")
121 for nm, val in headers:
122 w(recode(nm) + b": " + recode(val) + b"\n")
127 ret = self.sk.send(self.buffer, socket.MSG_DONTWAIT)
128 self.buffer[:ret] = b""
130 raise ashd.serve.closed()
136 nsk, addr = sk.accept()
138 reqhandler.handle(request(sk=nsk, handler=reqhandler))