Gateway shows file icon for directory called protocol.ai instead of directory icon

[victorb]

Version information:

go-ipfs version: 0.4.12-
Repo version: 6
System version: amd64/linux
Golang version: go1.9.2

Type:

Bug

Severity:

Low

Description:

When adding a directory that has a link protocol.ai, the gateway shows this directory as a Adobe Illustrator file (I think) rather than a directory.

Steps to reproduce:

$ mkdir test
$ mkdir test/protocol.ai
$ mkdir test/libp2p.io
$ echo "protocol.ai" > test/protocol.ai/index.html
$ echo "libp2p.io" > test/libp2p.io/index.html
$ ipfs add -rQ test
QmQ9C4WiXrPE2NUW8GM3GwXdZudvxzJynMM7XwzBxi3CeX

Looking at the gateway on the test directory (https://ipfs.io/ipfs/QmQ9C4WiXrPE2NUW8GM3GwXdZudvxzJynMM7XwzBxi3CeX) you'll see the following:

Notice the protocol.ai link shows some file extension icon instead of the directory icon.

Edit: it still works as a directory though, as you can navigate to https://ipfs.io/ipfs/QmQ9C4WiXrPE2NUW8GM3GwXdZudvxzJynMM7XwzBxi3CeX/protocol.ai/ and see the right output. But the icon for the directory is wrong.

[victorb]

Updated title to be more clear as it still works as a directory, but just the icon is wrong.

[djdv]

#4545 #4543 probably relevant

[djdv]

I don't know if this should be a separate issue but I noticed the gateway doesn't seem to like uppercase extensions either.

[jbenet]

I noticed this just now-- See: http://talks.benet.ai/2018-07-08-ipfs-dev-meetings -- these are all directories

[Stebalien]

So, the issue is that the directory doesn't store any information about file types (except file names). ls works around this by fetching the root block of every directory entry but that's could cause some performance issues on the gateway.