X-Git-Url: http://www.dolda2000.com/gitweb/?a=blobdiff_plain;f=python%2Fashd-wsgi;h=01c158f74fc47f0ccff95ff24eab73028c3da263;hb=e0c88e73e0686a5fb12ec0e2a7303597a77fec30;hp=d3347658ff4898d07a76c939f80d18045aa2c201;hpb=c270f222b55e805cd42c223da1c1d8774d6bd4cf;p=ashd.git diff --git a/python/ashd-wsgi b/python/ashd-wsgi index d334765..01c158f 100755 --- a/python/ashd-wsgi +++ b/python/ashd-wsgi @@ -1,24 +1,40 @@ #!/usr/bin/python -import sys, os, getopt, threading -import ashd.proto +import sys, os, getopt, threading, logging, time +import ashd.proto, ashd.util, ashd.perf, ashd.serve +try: + import pdm.srv +except: + pdm = None def usage(out): - out.write("usage: ashd-wsgi [-hA] [-p MODPATH] HANDLER-MODULE [ARGS...]\n") + out.write("usage: ashd-wsgi [-hAL] [-m PDM-SPEC] [-p MODPATH] [-l REQLIMIT] HANDLER-MODULE [ARGS...]\n") +reqlimit = 0 modwsgi_compat = False -opts, args = getopt.getopt(sys.argv[1:], "+hAp:") +setlog = True +opts, args = getopt.getopt(sys.argv[1:], "+hAp: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) + 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"]) @@ -29,14 +45,53 @@ if not modwsgi_compat: if not hasattr(handlermod, "wmain"): sys.stderr.write("ashd-wsgi: handler %s has no `wmain' function\n" % args[0]) sys.exit(1) - handler = handlermod.wmain(args[1:]) + handler = handlermod.wmain(*args[1:]) else: if not hasattr(handlermod, "application"): sys.stderr.write("ashd-wsgi: handler %s has no `application' object\n" % args[0]) sys.exit(1) handler = handlermod.application -def dowsgi(req): +cwd = os.getcwd() +def absolutify(path): + if path[0] != '/': + return os.path.join(cwd, path) + return path + +def unquoteurl(url): + buf = "" + i = 0 + while i < len(url): + c = url[i] + i += 1 + if c == '%': + if len(url) >= i + 2: + c = 0 + 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 '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 += chr(c) + i += 2 + else: + raise ValueError("Incomplete URL escape character") + else: + buf += c + return buf + +def mkenv(req): env = {} env["wsgi.version"] = 1, 0 for key, val in req.headers: @@ -46,83 +101,100 @@ def dowsgi(req): env["SERVER_PROTOCOL"] = req.ver env["REQUEST_METHOD"] = req.method env["REQUEST_URI"] = req.url - env["PATH_INFO"] = req.rest name = req.url p = name.find('?') if p >= 0: - name = name[:p] env["QUERY_STRING"] = name[p + 1:] + name = name[:p] else: env["QUERY_STRING"] = "" if name[-len(req.rest):] == req.rest: + # This is the same hack used in call*cgi. 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 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 "Content-Type" in req: env["CONTENT_TYPE"] = req["Content-Type"] - if "Content-Length" in req: env["CONTENT_LENGTH"] = req["Content-Length"] - if "X-Ash-File" in req: env["SCRIPT_FILENAME"] = req["X-Ash-File"] + 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 = [] +if reqlimit != 0: + guard = ashd.serve.abortlimiter(reqlimit).call +else: + guard = lambda fun: fun() - def write(data): - if not data: - return - if not respsent: - if not resp: - raise Exception, "Trying to write data before starting response." - status, headers = resp - respsent[:] = [True] - req.sk.write("HTTP/1.1 %s\n" % status) +class reqthread(ashd.serve.wsgithread): + def __init__(self, req): + super(reqthread, self).__init__() + self.req = req.dup() + + def handlewsgi(self): + return handler(self.env, self.startreq) + + def writehead(self, status, headers): + try: + self.req.sk.write("HTTP/1.1 %s\n" % status) for nm, val in headers: - req.sk.write("%s: %s\n" % (nm, val)) - req.sk.write("\n") - req.sk.write(data) - req.sk.flush() + self.req.sk.write("%s: %s\n" % (nm, val)) + self.req.sk.write("\n") + except IOError: + raise ashd.serve.closed() - def startreq(status, headers, exc_info = None): - if resp: - if exc_info: # Interesting, this... - try: - if respsent: - raise exc_info[0], exc_info[1], exc_info[2] - finally: - exc_info = None # CPython GC bug? - else: - raise Exception, "Can only start responding once." - resp[:] = status, headers - return write + def writedata(self, data): + try: + self.req.sk.write(data) + self.req.sk.flush() + except IOError: + raise ashd.serve.closed() - respiter = handler(env, startreq) - try: - for data in respiter: - write(data) - write("") - finally: - if hasattr(respiter, "close"): - respiter.close() + def handle(self): + self.env = mkenv(self.req) + reqevent = ashd.perf.request(self.env) + exc = (None, None, None) + try: + super(reqthread, self).handle() + if self.status: + reqevent.response([self.status, self.headers]) + except: + exc = sys.exc_info() + raise + finally: + reqevent.__exit__(*exc) -class reqthread(threading.Thread): - def __init__(self, req): - super(reqthread, self).__init__(name = "Request handler") - self.req = req.dup() - def run(self): try: - dowsgi(self.req) + guard(super(reqthread, self).run) finally: self.req.close() def handle(req): reqthread(req).start() -ashd.proto.serveloop(handle) +ashd.util.serveloop(handle)