def sendStatusResponse(environ, start_response, e):
"""Start a WSGI response for a DAVError or status code."""
status = getHttpStatusString(e)
headers = []
# if 'keep-alive' in environ.get('HTTP_CONNECTION', '').lower():
# headers += [
# ('Connection', 'keep-alive'),
# ]
if e in (HTTP_NOT_MODIFIED, HTTP_NO_CONTENT):
# See paste.lint: these code don't have content
start_response(status, [("Content-Length", "0"),
("Date", getRfc1123Time()),
] + headers)
return [ "" ]
if e in (HTTP_OK, HTTP_CREATED):
e = DAVError(e)
assert isinstance(e, DAVError)
content_type, body = e.getResponsePage()
start_response(status, [("Content-Type", content_type),
("Date", getRfc1123Time()),
("Content-Length", str(len(body))),
] + headers)
assert type(body) is str # If not, Content-Length is wrong!
return [ body ]
def sendStatusResponse(environ, start_response, e):
"""Start a WSGI response for a DAVError or status code."""
status = getHttpStatusString(e)
headers = []
# if 'keep-alive' in environ.get('HTTP_CONNECTION', '').lower():
# headers += [
# ('Connection', 'keep-alive'),
# ]
if e in (HTTP_NOT_MODIFIED, HTTP_NO_CONTENT):
# See paste.lint: these code don't have content
start_response(status, [
("Content-Length", "0"),
("Date", getRfc1123Time()),
] + headers)
return [b""]
if e in (HTTP_OK, HTTP_CREATED):
e = DAVError(e)
assert isinstance(e, DAVError)
content_type, body = e.getResponsePage()
assert compat.is_bytes(body), body # If not, Content-Length is wrong!
start_response(status, [
("Content-Type", content_type),
("Date", getRfc1123Time()),
("Content-Length", str(len(body))),
] + headers)
return [body]
def __call__(self, environ, start_response):
# Intercept start_response
sub_app_start_response = util.SubAppStartResponse()
try:
try:
# request_server app may be a generator (for example the GET handler)
# So we must iterate - not return self._application(..)!
# Otherwise the we could not catch exceptions here.
response_started = False
app_iter = self._application(environ, sub_app_start_response)
for v in app_iter:
# Start response (the first time)
if not response_started:
# Success!
start_response(sub_app_start_response.status,
sub_app_start_response.response_headers,
sub_app_start_response.exc_info)
response_started = True
yield v
# Close out iterator
if hasattr(app_iter, "close"):
app_iter.close()
# Start response (if it hasn't been done yet)
if not response_started:
# Success!
start_response(sub_app_start_response.status,
sub_app_start_response.response_headers,
sub_app_start_response.exc_info)
return
except DAVError as e:
_logger.debug("re-raising %s" % e)
raise
except Exception as e:
# Caught a non-DAVError
if self._catch_all_exceptions:
# Catch all exceptions to return as 500 Internal Error
traceback.print_exc(10, environ.get(
"wsgi.errors") or sys.stderr)
raise asDAVError(e)
else:
util.warn("ErrorPrinter: caught Exception")
traceback.print_exc(10, sys.stderr)
raise
except DAVError as e:
_logger.debug("caught %s" % e)
status = getHttpStatusString(e)
# Dump internal errors to console
if e.value == HTTP_INTERNAL_ERROR:
print("ErrorPrinter: caught HTTPRequestException("
"HTTP_INTERNAL_ERROR)", file=sys.stdout)
traceback.print_exc(10, environ.get(
"wsgi.errors") or sys.stdout)
print("e.srcexception:\n%s" % e.srcexception, file=sys.stdout)
elif e.value in (HTTP_NOT_MODIFIED, HTTP_NO_CONTENT):
# util.log("ErrorPrinter: forcing empty error response for %s"
# % e.value)
# See paste.lint: these code don't have content
start_response(status, [("Content-Length", "0"),
("Date", util.getRfc1123Time()),
])
yield b""
return
# If exception has pre-/post-condition: return as XML response,
# else return as HTML
content_type, body = e.getResponsePage()
# TODO: provide exc_info=sys.exc_info()?
start_response(status, [("Content-Type", content_type),
("Content-Length", str(len(body))),
("Date", util.getRfc1123Time()),
])
yield body
return
def addPropertyResponse(multistatusEL, href, propList):
"""Append <response> element to <multistatus> element.
<prop> node depends on the value type:
- str or unicode: add element with this content
- None: add an empty element
- etree.Element: add XML element as child
- DAVError: add an empty element to an own <propstatus> for this status code
@param multistatusEL: etree.Element
@param href: global URL of the resource, e.g. 'http://server:port/path'.
@param propList: list of 2-tuples (name, value)
"""
# Split propList by status code and build a unique list of namespaces
nsCount = 1
nsDict = {}
nsMap = {}
propDict = {}
for name, value in propList:
status = "200 OK"
if isinstance(value, DAVError):
status = getHttpStatusString(value)
# Always generate *empty* elements for props with error status
value = None
# Collect namespaces, so we can declare them in the <response> for
# compacter output
ns, _ = splitNamespace(name)
if ns!="DAV:" and not ns in nsDict and ns != "":
nsDict[ns] = True
nsMap["NS%s" % nsCount] = ns
nsCount += 1
propDict.setdefault(status, []).append( (name, value) )
# <response>
responseEL = makeSubElement(multistatusEL, "{DAV:}response", nsmap=nsMap)
# log("href value:%s" % (stringRepr(href)))
# etree.SubElement(responseEL, "{DAV:}href").text = toUnicode(href)
etree.SubElement(responseEL, "{DAV:}href").text = href
# etree.SubElement(responseEL, "{DAV:}href").text = urllib.quote(href, safe="/" + "!*'()," + "$-_|.")
# One <propstat> per status code
for status in propDict:
propstatEL = etree.SubElement(responseEL, "{DAV:}propstat")
# List of <prop>
propEL = etree.SubElement(propstatEL, "{DAV:}prop")
for name, value in propDict[status]:
if value is None:
etree.SubElement(propEL, name)
elif isinstance(value, etree._Element):
propEL.append(value)
else:
# value must be string or unicode
# log("%s value:%s" % (name, stringRepr(value)))
# etree.SubElement(propEL, name).text = value
etree.SubElement(propEL, name).text = toUnicode(value)
# <status>
etree.SubElement(propstatEL, "{DAV:}status").text = "HTTP/1.1 %s" % status
def addPropertyResponse(multistatusEL, href, propList):
"""Append <response> element to <multistatus> element.
<prop> node depends on the value type:
- str or unicode: add element with this content
- None: add an empty element
- etree.Element: add XML element as child
- DAVError: add an empty element to an own <propstatus> for this status code
@param multistatusEL: etree.Element
@param href: global URL of the resource, e.g. 'http://server:port/path'.
@param propList: list of 2-tuples (name, value)
"""
# Split propList by status code and build a unique list of namespaces
nsCount = 1
nsDict = {}
nsMap = {}
propDict = {}
for name, value in propList:
status = "200 OK"
if isinstance(value, DAVError):
status = getHttpStatusString(value)
# Always generate *empty* elements for props with error status
value = None
# Collect namespaces, so we can declare them in the <response> for
# compacter output
ns, _ = splitNamespace(name)
if ns != "DAV:" and ns not in nsDict and ns != "":
nsDict[ns] = True
nsMap["NS%s" % nsCount] = ns
nsCount += 1
propDict.setdefault(status, []).append((name, value))
# <response>
responseEL = makeSubElement(multistatusEL, "{DAV:}response", nsmap=nsMap)
# log("href value:%s" % (stringRepr(href)))
# etree.SubElement(responseEL, "{DAV:}href").text = toUnicode(href)
etree.SubElement(responseEL, "{DAV:}href").text = href
# etree.SubElement(responseEL, "{DAV:}href").text = compat.quote(href, safe="/" + "!*'(),"
# + "$-_|.")
# One <propstat> per status code
for status in propDict:
propstatEL = etree.SubElement(responseEL, "{DAV:}propstat")
# List of <prop>
propEL = etree.SubElement(propstatEL, "{DAV:}prop")
for name, value in propDict[status]:
if value is None:
etree.SubElement(propEL, name)
elif isEtreeElement(value):
propEL.append(value)
else:
# value must be string or unicode
# log("%s value:%s" % (name, stringRepr(value)))
# etree.SubElement(propEL, name).text = value
etree.SubElement(propEL, name).text = toUnicode(value)
# <status>
etree.SubElement(propstatEL,
"{DAV:}status").text = "HTTP/1.1 %s" % status
