def error(f):
message, code = humanize_failure(f)
req = IRequest(ctx)
req.setResponseCode(code)
return json.dumps({
"error": message,
})
def renderHTTP(self, ctx):
req = IRequest(ctx)
if req.method == 'GET':
req.setHeader('Content-Type', 'text/plain')
return 'PUT data here to create an object.'
elif req.method == 'PUT':
return self.handlePUT(req)
else:
req.setResponseCode(http.NOT_ALLOWED)
req.setHeader('Content-Type', 'text/plain')
return 'Method not allowed'
def renderHTTP(self, ctx):
req = IRequest(ctx)
if req.method == 'GET':
req.setHeader('Content-Type', 'text/plain')
return 'PUT data here to create an object.'
elif req.method == 'PUT':
return self.handlePUT(req)
else:
req.setResponseCode(http.NOT_ALLOWED)
req.setHeader('Content-Type', 'text/plain')
return 'Method not allowed'
def simple(self, ctx, text, code=http.BAD_REQUEST):
req = IRequest(ctx)
req.setResponseCode(code)
#req.responseHeaders.setRawHeaders("content-encoding", [])
#req.responseHeaders.setRawHeaders("content-disposition", [])
req.setHeader("content-type", "text/plain;charset=utf-8")
if isinstance(text, unicode):
text = text.encode("utf-8")
req.setHeader("content-length", b"%d" % len(text))
req.write(text)
# TODO: consider putting the requested URL here
req.finishRequest(False)
def simple(self, ctx, text, code=http.BAD_REQUEST):
req = IRequest(ctx)
req.setResponseCode(code)
#req.responseHeaders.setRawHeaders("content-encoding", [])
#req.responseHeaders.setRawHeaders("content-disposition", [])
req.setHeader("content-type", "text/plain;charset=utf-8")
if isinstance(text, unicode):
text = text.encode("utf-8")
req.setHeader("content-length", str(len(text)))
req.write(text)
# TODO: consider putting the requested URL here
req.finishRequest(False)
def renderHTTP_exception(self, ctx, failure):
"""Render the error page."""
request = IRequest(ctx)
request.setResponseCode(http.INTERNAL_SERVER_ERROR)
res = self.renderHTTP(ctx)
request.finishRequest(False)
log.err(failure)
service = IService(ctx)
service.build_and_send(service.ADMIN,
'[crash report] mes-souhaits.net',
str(failure))
return res
def renderHTTP(self, ctx):
req = IRequest(ctx)
gte = static.getTypeAndEncoding
ctype, encoding = gte(self.filename,
static.File.contentTypes,
static.File.contentEncodings,
defaultType="text/plain")
req.setHeader("content-type", ctype)
if encoding:
req.setHeader("content-encoding", encoding)
if boolean_of_arg(get_arg(req, "save", "False")):
# tell the browser to save the file rather display it we don't
# try to encode the filename, instead we echo back the exact same
# bytes we were given in the URL. See the comment in
# FileNodeHandler.render_GET for the sad details.
req.setHeader("content-disposition",
'attachment; filename="%s"' % self.filename)
filesize = self.filenode.get_size()
assert isinstance(filesize, (int, long)), filesize
first, size = 0, None
contentsize = filesize
req.setHeader("accept-ranges", "bytes")
if not self.filenode.is_mutable():
# TODO: look more closely at Request.setETag and how it interacts
# with a conditional "if-etag-equals" request, I think this may
# need to occur after the setResponseCode below
si = self.filenode.get_storage_index()
if si:
req.setETag(base32.b2a(si))
# TODO: for mutable files, use the roothash. For LIT, hash the data.
# or maybe just use the URI for CHK and LIT.
rangeheader = req.getHeader('range')
if rangeheader:
ranges = self.parse_range_header(rangeheader)
# ranges = None means the header didn't parse, so ignore
# the header as if it didn't exist. If is more than one
# range, then just return the first for now, until we can
# generate multipart/byteranges.
if ranges is not None:
first, last = ranges[0]
if first >= filesize:
raise WebError('First beyond end of file',
http.REQUESTED_RANGE_NOT_SATISFIABLE)
else:
first = max(0, first)
last = min(filesize - 1, last)
req.setResponseCode(http.PARTIAL_CONTENT)
req.setHeader(
'content-range', "bytes %s-%s/%s" %
(str(first), str(last), str(filesize)))
contentsize = last - first + 1
size = contentsize
req.setHeader("content-length", str(contentsize))
if req.method == "HEAD":
return ""
# Twisted >=9.0 throws an error if we call req.finish() on a closed
# HTTP connection. It also has req.notifyFinish() to help avoid it.
finished = []
def _request_finished(ign):
finished.append(True)
if hasattr(req, "notifyFinish"):
req.notifyFinish().addBoth(_request_finished)
d = self.filenode.read(req, first, size)
def _finished(ign):
if not finished:
req.finish()
def _error(f):
lp = log.msg("error during GET",
facility="tahoe.webish",
failure=f,
level=log.UNUSUAL,
umid="xSiF3w")
if finished:
log.msg("but it's too late to tell them",
parent=lp,
level=log.UNUSUAL,
umid="j1xIbw")
return
req._tahoe_request_had_error = f # for HTTP-style logging
if req.startedWriting:
# The content-type is already set, and the response code has
# already been sent, so we can't provide a clean error
# indication. We can emit text (which a browser might
# interpret as something else), and if we sent a Size header,
# they might notice that we've truncated the data. Keep the
# error message small to improve the chances of having our
# error response be shorter than the intended results.
#
# We don't have a lot of options, unfortunately.
req.write("problem during download\n")
req.finish()
else:
# We haven't written anything yet, so we can provide a
# sensible error message.
eh = MyExceptionHandler()
eh.renderHTTP_exception(ctx, f)
d.addCallbacks(_finished, _error)
return req.deferred
def renderHTTP(self, ctx):
req = IRequest(ctx)
gte = static.getTypeAndEncoding
ctype, encoding = gte(self.filename,
static.File.contentTypes,
static.File.contentEncodings,
defaultType="text/plain")
req.setHeader("content-type", ctype)
if encoding:
req.setHeader("content-encoding", encoding)
if boolean_of_arg(get_arg(req, "save", "False")):
# tell the browser to save the file rather display it we don't
# try to encode the filename, instead we echo back the exact same
# bytes we were given in the URL. See the comment in
# FileNodeHandler.render_GET for the sad details.
req.setHeader("content-disposition",
'attachment; filename="%s"' % self.filename)
filesize = self.filenode.get_size()
assert isinstance(filesize, (int,long)), filesize
first, size = 0, None
contentsize = filesize
req.setHeader("accept-ranges", "bytes")
# TODO: for mutable files, use the roothash. For LIT, hash the data.
# or maybe just use the URI for CHK and LIT.
rangeheader = req.getHeader('range')
if rangeheader:
ranges = self.parse_range_header(rangeheader)
# ranges = None means the header didn't parse, so ignore
# the header as if it didn't exist. If is more than one
# range, then just return the first for now, until we can
# generate multipart/byteranges.
if ranges is not None:
first, last = ranges[0]
if first >= filesize:
raise WebError('First beyond end of file',
http.REQUESTED_RANGE_NOT_SATISFIABLE)
else:
first = max(0, first)
last = min(filesize-1, last)
req.setResponseCode(http.PARTIAL_CONTENT)
req.setHeader('content-range',"bytes %s-%s/%s" %
(str(first), str(last),
str(filesize)))
contentsize = last - first + 1
size = contentsize
req.setHeader("content-length", b"%d" % contentsize)
if req.method == "HEAD":
return ""
finished = []
def _request_finished(ign):
finished.append(True)
req.notifyFinish().addBoth(_request_finished)
d = self.filenode.read(req, first, size)
def _finished(ign):
if not finished:
req.finish()
def _error(f):
lp = log.msg("error during GET", facility="tahoe.webish", failure=f,
level=log.UNUSUAL, umid="xSiF3w")
if finished:
log.msg("but it's too late to tell them", parent=lp,
level=log.UNUSUAL, umid="j1xIbw")
return
req._tahoe_request_had_error = f # for HTTP-style logging
if req.startedWriting:
# The content-type is already set, and the response code has
# already been sent, so we can't provide a clean error
# indication. We can emit text (which a browser might
# interpret as something else), and if we sent a Size header,
# they might notice that we've truncated the data. Keep the
# error message small to improve the chances of having our
# error response be shorter than the intended results.
#
# We don't have a lot of options, unfortunately.
req.write("problem during download\n")
req.finish()
else:
# We haven't written anything yet, so we can provide a
# sensible error message.
eh = MyExceptionHandler()
eh.renderHTTP_exception(ctx, f)
d.addCallbacks(_finished, _error)
return req.deferred
