3 import sys, os, getopt, threading, time
4 import ashd.proto, ashd.util, ashd.perf
11 out.write("usage: ashd-wsgi [-hA] [-m PDM-SPEC] [-p MODPATH] [-l REQLIMIT] HANDLER-MODULE [ARGS...]\n")
14 modwsgi_compat = False
15 opts, args = getopt.getopt(sys.argv[1:], "+hAp:l:m:")
34 handlermod = __import__(args[0], fromlist = ["dummy"])
35 except ImportError, exc:
36 sys.stderr.write("ashd-wsgi: handler %s not found: %s\n" % (args[0], exc.message))
38 if not modwsgi_compat:
39 if not hasattr(handlermod, "wmain"):
40 sys.stderr.write("ashd-wsgi: handler %s has no `wmain' function\n" % args[0])
42 handler = handlermod.wmain(*args[1:])
44 if not hasattr(handlermod, "application"):
45 sys.stderr.write("ashd-wsgi: handler %s has no `application' object\n" % args[0])
47 handler = handlermod.application
49 class closed(IOError):
51 super(closed, self).__init__("The client has closed the connection.")
56 return os.path.join(cwd, path)
68 if '0' <= url[i] <= '9':
69 c |= (ord(url[i]) - ord('0')) << 4
70 elif 'a' <= url[i] <= 'f':
71 c |= (ord(url[i]) - ord('a') + 10) << 4
72 elif 'A' <= url[i] <= 'F':
73 c |= (ord(url[i]) - ord('A') + 10) << 4
75 raise ValueError("Illegal URL escape character")
76 if '0' <= url[i + 1] <= '9':
77 c |= ord(url[i + 1]) - ord('0')
78 elif 'a' <= url[i + 1] <= 'f':
79 c |= ord(url[i + 1]) - ord('a') + 10
80 elif 'A' <= url[i + 1] <= 'F':
81 c |= ord(url[i + 1]) - ord('A') + 10
83 raise ValueError("Illegal URL escape character")
87 raise ValueError("Incomplete URL escape character")
94 env["wsgi.version"] = 1, 0
95 for key, val in req.headers:
96 env["HTTP_" + key.upper().replace("-", "_")] = val
97 env["SERVER_SOFTWARE"] = "ashd-wsgi/1"
98 env["GATEWAY_INTERFACE"] = "CGI/1.1"
99 env["SERVER_PROTOCOL"] = req.ver
100 env["REQUEST_METHOD"] = req.method
101 env["REQUEST_URI"] = req.url
105 env["QUERY_STRING"] = name[p + 1:]
108 env["QUERY_STRING"] = ""
109 if name[-len(req.rest):] == req.rest:
110 # This is the same hack used in call*cgi.
111 name = name[:-len(req.rest)]
113 pi = unquoteurl(req.rest)
117 # This seems to be normal CGI behavior, but see callcgi.c for
121 env["SCRIPT_NAME"] = name
122 env["PATH_INFO"] = pi
123 if "Host" in req: env["SERVER_NAME"] = req["Host"]
124 if "X-Ash-Server-Port" in req: env["SERVER_PORT"] = req["X-Ash-Server-Port"]
125 if "X-Ash-Protocol" in req and req["X-Ash-Protocol"] == "https": env["HTTPS"] = "on"
126 if "X-Ash-Address" in req: env["REMOTE_ADDR"] = req["X-Ash-Address"]
127 if "Content-Type" in req: env["CONTENT_TYPE"] = req["Content-Type"]
128 if "Content-Length" in req: env["CONTENT_LENGTH"] = req["Content-Length"]
129 if "X-Ash-File" in req: env["SCRIPT_FILENAME"] = absolutify(req["X-Ash-File"])
130 if "X-Ash-Protocol" in req: env["wsgi.url_scheme"] = req["X-Ash-Protocol"]
131 env["wsgi.input"] = req.sk
132 env["wsgi.errors"] = sys.stderr
133 env["wsgi.multithread"] = True
134 env["wsgi.multiprocess"] = False
135 env["wsgi.run_once"] = False
143 raise Exception, "Trying to write data before starting response."
144 status, headers = resp
147 req.sk.write("HTTP/1.1 %s\n" % status)
148 for nm, val in headers:
149 req.sk.write("%s: %s\n" % (nm, val))
164 def startreq(status, headers, exc_info = None):
166 if exc_info: # Interesting, this...
169 raise exc_info[0], exc_info[1], exc_info[2]
171 exc_info = None # CPython GC bug?
173 raise Exception, "Can only start responding once."
174 resp[:] = status, headers
177 reqevent = ashd.perf.request(env)
178 exc = (None, None, None)
180 respiter = handler(env, startreq)
183 for data in respiter:
190 if hasattr(respiter, "close"):
193 reqevent.response(resp)
198 reqevent.__exit__(*exc)
200 flightlock = threading.Condition()
203 class reqthread(threading.Thread):
204 def __init__(self, req):
205 super(reqthread, self).__init__(name = "Request handler")
215 while inflight >= reqlimit:
217 if time.time() - start > 10:
235 reqthread(req).start()
237 ashd.util.serveloop(handle)