Excessive (executable) file's permissions for non executable files

[CompuRoot]

Environment

Item	description
gokapi	Ver: 1.5.1
Host	Linux amd64

Files with insecure permissions

file	current permission	should be
./config/ssl.crt	700	600
./config/ssl.key	700	600
./data/filestorage.db/meta.json	700	600

Also, suggestion to set more secure permissions on log and uploaded content

./data/log.txt
as well uploaded blobs (filenames as hashes) should have permissions 600 instead of 644

[Forceu]

Thank you for your issue! As the data folder has the permission 700, it is not a serious security risk for now, as the data in the folder with permissions 644 is still unreadable for unauthorised users. I will change that with the next commit.

./data/filestorage.db/meta.json is created by a library, I would rather not change the permission manually, as is having the executable bit is not really a big concern.

I will change the ssl certificate permissions however.