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Merge branch 'master' into python3
[wrw.git]
/
wrw
/
dispatch.py
diff --git
a/wrw/dispatch.py
b/wrw/dispatch.py
index
50adc04
..
768d3f4
100644
(file)
--- a/
wrw/dispatch.py
+++ b/
wrw/dispatch.py
@@
-1,3
+1,6
@@
+import sys, traceback
+from . import env, req, proto
+
__all__ = ["restart"]
class restart(Exception):
__all__ = ["restart"]
class restart(Exception):
@@
-13,42
+16,40
@@
def mangle(result):
return result
return [str(result)]
return result
return [str(result)]
-class iterproxy(object):
- # Makes sure iter(real).next() is called immediately, in order to
- # let generator code run.
- def __init__(self, real):
- self.bk = real
- self.bki = iter(real)
- self._next = [None]
- self.next()
-
- def __iter__(self):
- return self
-
- def next(self):
- if self._next is None:
- raise StopIteration()
- ret = self._next[0]
- try:
- self._next[:] = [self.bki.next()]
- except StopIteration:
- self._next = None
- return ret
-
- def close(self):
- if hasattr(self.bk, "close"):
- self.bk.close()
+def defaulterror(req, excinfo):
+ from . import resp
+ traceback.print_exception(*excinfo)
+ raise resp.httperror(500)
+
+def wraphandler(handler, excinfo):
+ def wrapped(req):
+ return handler(req, excinfo)
+ return wrapped
+
+errorhandler = env.var(defaulterror)
def handle(req, startreq, handler):
def handle(req, startreq, handler):
+ eh = errorhandler.val
try:
resp = [""]
while True:
try:
try:
resp = [""]
while True:
try:
- resp =
iterproxy(handler(req)
)
+ resp =
handler(req
)
break
except restart as i:
handler = i.handle
break
except restart as i:
handler = i.handle
+ except Exception as i:
+ if eh is None:
+ raise
+ handler = wraphandler(eh, sys.exc_info())
+ eh = None
req.commit(startreq)
return resp
finally:
req.cleanup()
req.commit(startreq)
return resp
finally:
req.cleanup()
+
+def handleenv(env, startreq, handler):
+ if not "HTTP_HOST" in env:
+ return proto.simpleerror(env, startreq, 400, "Bad Request", "Request must include Host header.")
+ r = req.origrequest(env)
+ return handle(r, startreq, handler)