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Split out add_file_headers
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ce3a726fc0
commit
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@ -70,38 +70,11 @@ def respond_with_file(request, media_type, file_path,
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logger.debug("Responding with %r", file_path)
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if os.path.isfile(file_path):
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request.setHeader(b"Content-Type", media_type.encode("UTF-8"))
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if upload_name:
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if is_ascii(upload_name):
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request.setHeader(
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b"Content-Disposition",
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b"inline; filename=%s" % (
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urllib.quote(upload_name.encode("utf-8")),
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),
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)
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else:
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request.setHeader(
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b"Content-Disposition",
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b"inline; filename*=utf-8''%s" % (
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urllib.quote(upload_name.encode("utf-8")),
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),
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)
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# cache for at least a day.
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# XXX: we might want to turn this off for data we don't want to
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# recommend caching as it's sensitive or private - or at least
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# select private. don't bother setting Expires as all our
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# clients are smart enough to be happy with Cache-Control
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request.setHeader(
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b"Cache-Control", b"public,max-age=86400,s-maxage=86400"
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)
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if file_size is None:
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stat = os.stat(file_path)
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file_size = stat.st_size
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request.setHeader(
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b"Content-Length", b"%d" % (file_size,)
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)
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add_file_headers(request, media_type, file_size, upload_name)
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with open(file_path, "rb") as f:
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yield logcontext.make_deferred_yieldable(
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@ -111,3 +84,44 @@ def respond_with_file(request, media_type, file_path,
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finish_request(request)
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else:
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respond_404(request)
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def add_file_headers(request, media_type, file_size, upload_name):
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"""Adds the correct response headers in preparation for responding with the
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media.
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Args:
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request (twisted.web.http.Request)
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media_type (str): The media/content type.
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file_size (int): Size in bytes of the media, if known.
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upload_name (str): The name of the requested file, if any.
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"""
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request.setHeader(b"Content-Type", media_type.encode("UTF-8"))
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if upload_name:
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if is_ascii(upload_name):
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request.setHeader(
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b"Content-Disposition",
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b"inline; filename=%s" % (
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urllib.quote(upload_name.encode("utf-8")),
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),
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)
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else:
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request.setHeader(
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b"Content-Disposition",
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b"inline; filename*=utf-8''%s" % (
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urllib.quote(upload_name.encode("utf-8")),
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),
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)
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# cache for at least a day.
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# XXX: we might want to turn this off for data we don't want to
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# recommend caching as it's sensitive or private - or at least
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# select private. don't bother setting Expires as all our
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# clients are smart enough to be happy with Cache-Control
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request.setHeader(
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b"Cache-Control", b"public,max-age=86400,s-maxage=86400"
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)
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request.setHeader(
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b"Content-Length", b"%d" % (file_size,)
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)
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