-#!/usr/bin/python3
+#!/usr/bin/python
-import sys, os, getopt, threading, time, locale, collections
-import ashd.proto, ashd.util
+import sys, os, getopt, socket, logging, time, signal
+import ashd.util, ashd.serve
+try:
+ import pdm.srv
+except:
+ pdm = None
def usage(out):
- out.write("usage: ashd-wsgi [-hA] [-p MODPATH] [-l REQLIMIT] HANDLER-MODULE [ARGS...]\n")
+ out.write("usage: ashd-wsgi [-hAL] [-m PDM-SPEC] [-p MODPATH] [-t REQUEST-HANDLER[:PAR[=VAL](,PAR[=VAL])...]] HANDLER-MODULE [ARGS...]\n")
-reqlimit = 0
+hspec = "free", {}
modwsgi_compat = False
-opts, args = getopt.getopt(sys.argv[1:], "+hAp:l:")
+setlog = True
+opts, args = getopt.getopt(sys.argv[1:], "+hALp:t:l:m:")
for o, a in opts:
if o == "-h":
usage(sys.stdout)
sys.exit(0)
elif o == "-p":
sys.path.insert(0, a)
+ elif o == "-L":
+ setlog = False
elif o == "-A":
modwsgi_compat = True
elif o == "-l":
- reqlimit = int(a)
+ hspec = "free", {"max": a, "abort": "10"}
+ elif o == "-t":
+ hspec = ashd.serve.parsehspec(a)
+ elif o == "-m":
+ if pdm is not None:
+ pdm.srv.listen(a)
if len(args) < 1:
usage(sys.stderr)
sys.exit(1)
+if setlog:
+ logging.basicConfig(format="ashd-wsgi(%(name)s): %(levelname)s: %(message)s")
+log = logging.getLogger("ashd-wsgi")
try:
handlermod = __import__(args[0], fromlist = ["dummy"])
-except ImportError as exc:
- sys.stderr.write("ashd-wsgi: handler %s not found: %s\n" % (args[0], exc.args[0]))
+except ImportError, exc:
+ sys.stderr.write("ashd-wsgi: handler %s not found: %s\n" % (args[0], exc.message))
sys.exit(1)
if not modwsgi_compat:
if not hasattr(handlermod, "wmain"):
sys.exit(1)
handler = handlermod.application
-class closed(IOError):
- def __init__(self):
- super().__init__("The client has closed the connection.")
-
cwd = os.getcwd()
def absolutify(path):
if path[0] != '/':
return path
def unquoteurl(url):
- buf = bytearray()
+ buf = ""
i = 0
while i < len(url):
c = url[i]
i += 1
- if c == ord(b'%'):
+ if c == '%':
if len(url) >= i + 2:
c = 0
- if ord(b'0') <= url[i] <= ord(b'9'):
- c |= (url[i] - ord(b'0')) << 4
- elif ord(b'a') <= url[i] <= ord(b'f'):
- c |= (url[i] - ord(b'a') + 10) << 4
- elif ord(b'A') <= url[i] <= ord(b'F'):
- c |= (url[i] - ord(b'A') + 10) << 4
+ if '0' <= url[i] <= '9':
+ c |= (ord(url[i]) - ord('0')) << 4
+ elif 'a' <= url[i] <= 'f':
+ c |= (ord(url[i]) - ord('a') + 10) << 4
+ elif 'A' <= url[i] <= 'F':
+ c |= (ord(url[i]) - ord('A') + 10) << 4
else:
raise ValueError("Illegal URL escape character")
- if ord(b'0') <= url[i + 1] <= ord(b'9'):
- c |= url[i + 1] - ord('0')
- elif ord(b'a') <= url[i + 1] <= ord(b'f'):
- c |= url[i + 1] - ord(b'a') + 10
- elif ord(b'A') <= url[i + 1] <= ord(b'F'):
- c |= url[i + 1] - ord(b'A') + 10
+ if '0' <= url[i + 1] <= '9':
+ c |= ord(url[i + 1]) - ord('0')
+ elif 'a' <= url[i + 1] <= 'f':
+ c |= ord(url[i + 1]) - ord('a') + 10
+ elif 'A' <= url[i + 1] <= 'F':
+ c |= ord(url[i + 1]) - ord('A') + 10
else:
raise ValueError("Illegal URL escape character")
- buf.append(c)
+ buf += chr(c)
i += 2
else:
raise ValueError("Incomplete URL escape character")
else:
- buf.append(c)
+ buf += c
return buf
-def dowsgi(req):
+def mkenv(req):
env = {}
env["wsgi.version"] = 1, 0
for key, val in req.headers:
- env["HTTP_" + key.upper().replace(b"-", b"_").decode("latin-1")] = val.decode("latin-1")
+ env["HTTP_" + key.upper().replace("-", "_")] = val
env["SERVER_SOFTWARE"] = "ashd-wsgi/1"
env["GATEWAY_INTERFACE"] = "CGI/1.1"
- env["SERVER_PROTOCOL"] = req.ver.decode("latin-1")
- env["REQUEST_METHOD"] = req.method.decode("latin-1")
- try:
- rawpi = unquoteurl(req.rest)
- except:
- rawpi = req.rest
- try:
- name, rest, pi = (v.decode("utf-8") for v in (req.url, req.rest, rawpi))
- env["wsgi.uri_encoding"] = "utf-8"
- except UnicodeError as exc:
- name, rest, pi = (v.decode("latin-1") for v in (req.url, req.rest, rawpi))
- env["wsgi.uri_encoding"] = "latin-1"
- env["REQUEST_URI"] = name
+ env["SERVER_PROTOCOL"] = req.ver
+ env["REQUEST_METHOD"] = req.method
+ env["REQUEST_URI"] = req.url
+ name = req.url
p = name.find('?')
if p >= 0:
env["QUERY_STRING"] = name[p + 1:]
name = name[:p]
else:
env["QUERY_STRING"] = ""
- if name[-len(rest):] == rest:
+ if name[-len(req.rest):] == req.rest:
# This is the same hack used in call*cgi.
- name = name[:-len(rest)]
- if name == "/":
+ name = name[:-len(req.rest)]
+ try:
+ pi = unquoteurl(req.rest)
+ except:
+ pi = req.rest
+ if name == '/':
# This seems to be normal CGI behavior, but see callcgi.c for
# details.
pi = "/" + pi
name = ""
env["SCRIPT_NAME"] = name
env["PATH_INFO"] = pi
- for src, tgt in [("HTTP_HOST", "SERVER_NAME"), ("HTTP_X_ASH_SERVER_PORT", "SERVER_PORT"),
- ("HTTP_X_ASH_ADDRESS", "REMOTE_ADDR"), ("HTTP_CONTENT_TYPE", "CONTENT_TYPE"),
- ("HTTP_CONTENT_LENGTH", "CONTENT_LENGTH"), ("HTTP_X_ASH_PROTOCOL", "wsgi.url_scheme")]:
- if src in env: env[tgt] = env[src]
- if "X-Ash-Protocol" in req and req["X-Ash-Protocol"] == b"https": env["HTTPS"] = "on"
- if "X-Ash-File" in req: env["SCRIPT_FILENAME"] = absolutify(req["X-Ash-File"].decode(locale.getpreferredencoding()))
+ if "Host" in req: env["SERVER_NAME"] = req["Host"]
+ if "X-Ash-Server-Address" in req: env["SERVER_ADDR"] = req["X-Ash-Server-Address"]
+ if "X-Ash-Server-Port" in req: env["SERVER_PORT"] = req["X-Ash-Server-Port"]
+ if "X-Ash-Protocol" in req and req["X-Ash-Protocol"] == "https": env["HTTPS"] = "on"
+ if "X-Ash-Address" in req: env["REMOTE_ADDR"] = req["X-Ash-Address"]
+ if "X-Ash-Port" in req: env["REMOTE_PORT"] = req["X-Ash-Port"]
+ if "Content-Type" in req:
+ env["CONTENT_TYPE"] = req["Content-Type"]
+ # The CGI specification does not strictly require this, but
+ # many actualy programs and libraries seem to.
+ del env["HTTP_CONTENT_TYPE"]
+ if "Content-Length" in req:
+ env["CONTENT_LENGTH"] = req["Content-Length"]
+ del env["HTTP_CONTENT_LENGTH"]
+ if "X-Ash-File" in req: env["SCRIPT_FILENAME"] = absolutify(req["X-Ash-File"])
+ if "X-Ash-Protocol" in req: env["wsgi.url_scheme"] = req["X-Ash-Protocol"]
env["wsgi.input"] = req.sk
env["wsgi.errors"] = sys.stderr
env["wsgi.multithread"] = True
env["wsgi.multiprocess"] = False
env["wsgi.run_once"] = False
+ return env
- resp = []
- respsent = []
+class request(ashd.serve.wsgirequest):
+ def __init__(self, bkreq, **kw):
+ super(request, self).__init__(**kw)
+ self.bkreq = bkreq.dup()
- def recode(thing):
- if isinstance(thing, collections.ByteString):
- return thing
- else:
- return str(thing).encode("latin-1")
-
- def flushreq():
- if not respsent:
- if not resp:
- raise Exception("Trying to write data before starting response.")
- status, headers = resp
- respsent[:] = [True]
- buf = bytearray()
- buf += b"HTTP/1.1 " + recode(status) + b"\n"
- for nm, val in headers:
- buf += recode(nm) + b": " + recode(val) + b"\n"
- buf += b"\n"
- try:
- req.sk.write(buf)
- except IOError:
- raise closed()
-
- def write(data):
- if not data:
- return
- flushreq()
+ def mkenv(self):
+ return mkenv(self.bkreq)
+
+ def handlewsgi(self, env, startreq):
+ return handler(env, startreq)
+
+ def fileno(self):
+ return self.bkreq.bsk.fileno()
+
+ def writehead(self, status, headers):
+ w = self.buffer.extend
+ w("HTTP/1.1 %s\n" % status)
+ for nm, val in headers:
+ w("%s: %s\n" % (nm, val))
+ w("\n")
+
+ def flush(self):
try:
- req.sk.write(data)
- req.sk.flush()
+ ret = self.bkreq.bsk.send(self.buffer, socket.MSG_DONTWAIT)
+ self.buffer[:ret] = ""
except IOError:
- raise closed()
-
- def startreq(status, headers, exc_info = None):
- if resp:
- if exc_info: # Interesting, this...
- try:
- if respsent:
- raise exc_info[1]
- finally:
- exc_info = None # CPython GC bug?
- else:
- raise Exception("Can only start responding once.")
- resp[:] = status, headers
- return write
+ raise ashd.serve.closed()
+
+ def close(self):
+ self.bkreq.close()
- respiter = handler(env, startreq)
- try:
- try:
- for data in respiter:
- write(data)
- if resp:
- flushreq()
- except closed:
- pass
- finally:
- if hasattr(respiter, "close"):
- respiter.close()
-
-flightlock = threading.Condition()
-inflight = 0
-
-class reqthread(threading.Thread):
- def __init__(self, req):
- super().__init__(name = "Request handler")
- self.req = req.dup()
-
- def run(self):
- global inflight
- try:
- with flightlock:
- if reqlimit != 0:
- start = time.time()
- while inflight >= reqlimit:
- flightlock.wait(10)
- if time.time() - start > 10:
- os.abort()
- inflight += 1
- try:
- dowsgi(self.req)
- finally:
- with flightlock:
- inflight -= 1
- flightlock.notify()
- finally:
- self.req.close()
-
def handle(req):
- reqthread(req).start()
+ reqhandler.handle(request(bkreq=req, handler=reqhandler))
-ashd.util.serveloop(handle)
+if hspec[0] not in ashd.serve.names:
+ sys.stderr.write("ashd-wsgi: no such request handler: %s\n" % hspec[0])
+ sys.exit(1)
+hclass = ashd.serve.names[hspec[0]]
+try:
+ hargs = hclass.parseargs(**hspec[1])
+except ValueError as exc:
+ sys.stderr.write("ashd-wsgi: %s\n" % exc)
+ sys.exit(1)
+
+def sigterm(sig, frame):
+ socket.fromfd(0, socket.AF_UNIX, socket.SOCK_SEQPACKET).shutdown(socket.SHUT_RDWR) # :P
+for signum in [signal.SIGINT, signal.SIGTERM]:
+ signal.signal(signum, sigterm)
+
+reqhandler = hclass(**hargs)
+try:
+ ashd.util.serveloop(handle)
+finally:
+ reqhandler.close()
Dolda2000 GitWeb / ashd.git / blobdiff