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web/filenode: add Accept-Ranges and ETag (for immutable files) headers to GET responses

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This commit is contained in:
Brian Warner 2008-10-28 18:01:03 -07:00
parent b1ca238176
commit 6e1db34817
1 changed files with 8 additions and 1 deletions
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9
src/allmydata/web/filenode.py
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@ -10,7 +10,7 @@ from allmydata.interfaces import ExistingChildError
from allmydata.monitor import Monitor
from allmydata.immutable.upload import FileHandle
from allmydata.immutable.filenode import LiteralFileNode
from allmydata.util import log
from allmydata.util import log, base32
from allmydata.web.common import text_plain, WebError, IClient, RenderMixin, \
boolean_of_arg, get_arg, should_create_intermediate_directories
@ -353,6 +353,13 @@ class FileDownloader(rend.Page):
assert isinstance(filesize, (int,long)), filesize
offset, 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
req.setETag(base32.b2a(self.filenode.get_storage_index()))
# TODO: for mutable files, use the roothash
rangeheader = req.getHeader('range')
if rangeheader:
# adapted from nevow.static.File