From ee4ba104e722960376988e4e6971b5c5c271c643 Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Mon, 2 Oct 2023 20:40:49 +0900
Subject: [completion] Prevent running a command during 'eval'

Do not attempt to provide fuzzy completion if the prefix contains a
pattern that may start an arbitraty command.

* $(...)
* `...`
* <(...)

Close #3459
---
 shell/completion.zsh | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'shell/completion.zsh')

diff --git a/shell/completion.zsh b/shell/completion.zsh
index ec2dfdef..fe62b9a8 100644
--- a/shell/completion.zsh
+++ b/shell/completion.zsh
@@ -137,6 +137,9 @@ __fzf_generic_path_completion() {
   tail=$6
 
   setopt localoptions nonomatch
+  if [[ $base = *'$('* ]] || [[ $base = *'<('* ]] || [[ $base = *'`'* ]]; then
+    return
+  fi
   eval "base=$base"
   [[ $base = *"/"* ]] && dir="$base"
   while [ 1 ]; do
@@ -304,6 +307,9 @@ fzf-completion() {
     d_cmds=(${=FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir})
 
     [ -z "$trigger"      ] && prefix=${tokens[-1]} || prefix=${tokens[-1]:0:-${#trigger}}
+    if [[ $prefix = *'$('* ]] || [[ $prefix = *'<('* ]] || [[ $prefix = *'`'* ]]; then
+      return
+    fi
     [ -n "${tokens[-1]}" ] && lbuf=${lbuf:0:-${#tokens[-1]}}
 
     if eval "type _fzf_complete_${cmd} > /dev/null"; then
-- 
cgit v1.2.3