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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.monitor import Monitor
from allmydata.immutable.upload import FileHandle from allmydata.immutable.upload import FileHandle
from allmydata.immutable.filenode import LiteralFileNode 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, \ from allmydata.web.common import text_plain, WebError, IClient, RenderMixin, \
boolean_of_arg, get_arg, should_create_intermediate_directories boolean_of_arg, get_arg, should_create_intermediate_directories
@ -353,6 +353,13 @@ class FileDownloader(rend.Page):
assert isinstance(filesize, (int,long)), filesize assert isinstance(filesize, (int,long)), filesize
offset, size = 0, None offset, size = 0, None
contentsize = filesize 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') rangeheader = req.getHeader('range')
if rangeheader: if rangeheader:
# adapted from nevow.static.File # adapted from nevow.static.File