5apps/liquor-cabinet
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Allow for weak ETAGs with leading quote

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The remoteStorage client currently surrounds all ETAGs with quotes, so
instead of W\"etag" it looks like "W\"etag".
This commit is contained in:
Garret Alfert 2018-01-03 22:06:03 +01:00
parent 91e687d318
commit 24ae9ad893
2 changed files with 20 additions and 4 deletions
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8
lib/remote_storage/swift.rb
View File

@ -52,7 +52,7 @@ module RemoteStorage
set_response_headers(res)
none_match = (server.env["HTTP_IF_NONE_MATCH"] || "").gsub(/^W\//, "").split(",").map(&:strip)
none_match = (server.env["HTTP_IF_NONE_MATCH"] || "").gsub(/^"?W\//, "").split(",").map(&:strip)
server.halt 304 if none_match.include? %Q("#{res.headers[:etag]}")
return res.body
@ -71,7 +71,7 @@ module RemoteStorage
server.headers["Content-Type"] = "application/ld+json"
none_match = (server.env["HTTP_IF_NONE_MATCH"] || "").gsub(/^W\//, "").split(",").map(&:strip)
none_match = (server.env["HTTP_IF_NONE_MATCH"] || "").gsub(/^"?W\//, "").split(",").map(&:strip)
if etag
server.halt 304 if none_match.include? %Q("#{etag}")
@ -139,7 +139,7 @@ module RemoteStorage
url = url_for_key(user, directory, key)
if required_match = server.env["HTTP_IF_MATCH"]
unless required_match.gsub(/^W\//, "") == %Q("#{existing_metadata["e"]}")
unless required_match.gsub(/^"?W\//, "") == %Q("#{existing_metadata["e"]}")
server.halt 412, "Precondition Failed"
end
end
@ -187,7 +187,7 @@ module RemoteStorage
existing_metadata = redis.hgetall "rs:m:#{user}:#{directory}/#{key}"
if required_match = server.env["HTTP_IF_MATCH"]
unless required_match.gsub(/^W\//, "") == %Q("#{existing_metadata["e"]}")
unless required_match.gsub(/^"?W\//, "") == %Q("#{existing_metadata["e"]}")
server.halt 412, "Precondition Failed"
end
end

16
spec/swift/app_spec.rb
View File

@ -265,6 +265,22 @@ describe "App" do
last_response.headers["Etag"].must_equal "\"newetag\""
end
it "allows the request if the header contains a weak ETAG with leading quote matching the current ETag" do
header "If-Match", "\"W/\"oldetag\""
put_stub = OpenStruct.new(headers: {
etag: "newetag",
last_modified: "Fri, 04 Mar 2016 12:20:18 GMT"
})
RestClient.stub :put, put_stub do
put "/phil/food/aguacate", "aye"
end
last_response.status.must_equal 200
last_response.headers["Etag"].must_equal "\"newetag\""
end
it "fails the request if the header does not match the current ETag" do
header "If-Match", "someotheretag"