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Security: mktemp, file permissions, removing temp file after. And a basic feature I needed. #91

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Security: mktemp, file permissions, removing temp file after. And a basic feature I needed. #91

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e896c58
Use mktemp to create temporary file! For well known security reasons.
wrzasa Mar 22, 2018
930f08b
Start with clipboard contents in your vim
wrzasa Mar 22, 2018
96f0b7f
Set proper permissions for temporary file!
wrzasa Mar 23, 2018
79be842
Remove temporary file after editing!
wrzasa Mar 23, 2018
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10 changes: 6 additions & 4 deletions bin/run
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Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,8 @@ done

AW_PATH=$HOME/.vim-anywhere
TMPFILE_DIR=/tmp/vim-anywhere
TMPFILE=$TMPFILE_DIR/doc-$(date +"%y%m%d%H%M%S")
mkdir -p $TMPFILE_DIR
TMPFILE=`mktemp -p $TMPFILE_DIR`
VIM_OPTS=--nofork

# Use ~/.gvimrc.min or ~/.vimrc.min if one exists
Expand All @@ -50,12 +51,11 @@ for vimrc_path in "${VIMRC_PATH[@]}"; do
fi
done

mkdir -p $TMPFILE_DIR
touch $TMPFILE
xclip -selection clipboard -o > $TMPFILE

# Linux
if [[ $OSTYPE == "linux-gnu" ]]; then
chmod o-r $TMPFILE # Make file only readable by you
chmod 600 $TMPFILE # Make file only readable by you
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@davidfetter davidfetter Jan 13, 2019

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Should this be one of chmod 0600 or chmod go-rwx?

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@wrzasa wrzasa Jan 13, 2019

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I don't understand your question.

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@davidfetter davidfetter Oct 10, 2020

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Your original command removed permission only from other. My suggestion was to ensure that only your user be allowed, i.e. to remove permission from others in the group.

gvim $VIM_OPTS $TMPFILE
cat $TMPFILE | xclip -selection clipboard

Expand All @@ -82,3 +82,5 @@ elif [[ $OSTYPE == "darwin"* ]]; then
LANG=en_US.UTF-8 pbcopy < $TMPFILE
osascript -e "activate application \"$app\""
fi

rm $TMPFILE