1 files changed, 44 insertions, 0 deletions
diff --git a/lib/compfix.zsh b/lib/compfix.zsh
new file mode 100644
index 000000000..b09b283f2
--- /dev/null
+++ b/lib/compfix.zsh
@@ -0,0 +1,44 @@
+# Handle completions insecurities (i.e., completion-dependent directories with
+# insecure ownership or permissions) by:
+#
+# * Human-readably notifying the user of these insecurities.
+function handle_completion_insecurities() {
+  # List of the absolute paths of all unique insecure directories, split on
+  # newline from compaudit()'s output resembling:
+  #
+  #     There are insecure directories:
+  #     /usr/share/zsh/site-functions
+  #     /usr/share/zsh/5.0.6/functions
+  #     /usr/share/zsh
+  #     /usr/share/zsh/5.0.6
+  #
+  # Since the ignorable first line is printed to stderr and thus not captured,
+  # stderr is squelched to prevent this output from leaking to the user. 
+  local -aU insecure_dirs
+  insecure_dirs=( ${(f@):-"$(compaudit 2>/dev/null)"} )
+
+  # If no such directories exist, get us out of here.
+  [[ -z "${insecure_dirs}" ]] && return
+
+  # List ownership and permissions of all insecure directories.
+  print "[oh-my-zsh] Insecure completion-dependent directories detected:"
+  ls -ld "${(@)insecure_dirs}"
+
+  cat <<EOD
+
+[oh-my-zsh] For safety, we will not load completions from these directories until
+[oh-my-zsh] you fix their permissions and ownership and restart zsh.
+[oh-my-zsh] See the above list for directories with group or other writability.
+
+[oh-my-zsh] To fix your permissions you can do so by disabling
+[oh-my-zsh] the write permission of "group" and "others" and making sure that the
+[oh-my-zsh] owner of these directories is either root or your current user.
+[oh-my-zsh] The following command may help:
+[oh-my-zsh]     compaudit | xargs chmod g-w,o-w
+
+[oh-my-zsh] If the above didn't help or you want to skip the verification of
+[oh-my-zsh] insecure directories you can set the variable ZSH_DISABLE_COMPFIX to
+[oh-my-zsh] "true" before oh-my-zsh is sourced in your zshrc file.
+
+EOD
+}