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405a03bfae
This injected filenames into fish script, which could inject things that looked like fish script. E.g. create a file called `~/.config/fish/themes/"; rm -rf ~/*"`. Note that the prompts are all shipped by us, but the themes can technically be added by the user, and they might not be dilligent in what filenames they allow.
265 lines
10 KiB
Fish
265 lines
10 KiB
Fish
function fish_config --description "Launch fish's web based configuration"
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argparse h/help -- $argv
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or return
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if set -q _flag_help
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__fish_print_help fish_config
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return 0
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end
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set -l cmd $argv[1]
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set -e argv[1]
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set -q cmd[1]
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or set cmd browse
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# The web-based configuration UI
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# Also opened with just `fish_config` or `fish_config browse`.
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if contains -- $cmd browse
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set -lx __fish_bin_dir $__fish_bin_dir
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if set -l python (__fish_anypython)
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$python "$__fish_data_dir/tools/web_config/webconfig.py" $argv
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else
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echo (set_color $fish_color_error)Cannot launch the web configuration tool:(set_color normal)
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echo (set_color -o)"fish_config browse"(set_color normal) requires Python.
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echo Installing python will fix this, and also enable completions to be
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echo automatically generated from man pages.\n
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echo To change your prompt, use (set_color -o)"fish_config prompt"(set_color normal) or create a (set_color -o)"fish_prompt"(set_color normal) function.
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echo To list the samples use (set_color -o)"fish_config prompt show"(set_color normal).\n
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echo You can tweak your colors by setting the (set_color $fish_color_search_match)\$fish_color_\*(set_color normal) variables.
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end
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return 0
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end
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if not contains -- $cmd prompt theme
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echo No such subcommand: $cmd >&2
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return 1
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end
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switch $cmd
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case prompt
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# prompt - for prompt switching
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set -l cmd $argv[1]
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set -e argv[1]
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if contains -- $cmd list; and set -q argv[1]
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echo "Too many arguments" >&2
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return 1
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end
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set -l prompt_dir $__fish_data_dir/sample_prompts $__fish_data_dir/tools/web_config/sample_prompts
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switch $cmd
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case show
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set -l fish (status fish-path)
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set -l prompts $prompt_dir/$argv.fish
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set -q prompts[1]; or set prompts $prompt_dir/*.fish
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for p in $prompts
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if not test -e "$p"
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continue
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end
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set -l promptname (string replace -r '.*/([^/]*).fish$' '$1' $p)
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echo -s (set_color --underline) $promptname (set_color normal)
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$fish -c 'functions -e fish_right_prompt; source $argv[1];
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false
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fish_prompt
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echo (set_color normal)
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if functions -q fish_right_prompt;
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echo right prompt: (false; fish_right_prompt)
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end' $p
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echo
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end
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case list ''
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string replace -r '.*/([^/]*).fish$' '$1' $prompt_dir/*.fish
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return
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case choose
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if set -q argv[2]
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echo "Too many arguments" >&2
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return 1
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end
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if not set -q argv[1]
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echo "Too few arguments" >&2
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return 1
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end
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set -l have 0
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for f in $prompt_dir/$argv[1].fish
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if test -f $f
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source $f
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set have 1
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break
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end
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end
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if test $have -eq 0
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echo "No such prompt: '$argv[1]'" >&2
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return 1
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end
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case save
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read -P"Overwrite prompt? [y/N]" -l yesno
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if string match -riq 'y(es)?' -- $yesno
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echo Overwriting
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cp $__fish_config_dir/functions/fish_prompt.fish{,.bak}
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if set -q argv[1]
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set -l have 0
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for f in $prompt_dir/$argv[1].fish
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if test -f $f
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set have 1
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source $f
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or return 2
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end
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end
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if test $have -eq 0
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echo "No such prompt: '$argv[1]'" >&2
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return 1
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end
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end
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funcsave fish_prompt
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or return
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functions -q fish_right_prompt
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and funcsave fish_right_prompt
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return
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else
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echo Not overwriting
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return 1
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end
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end
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return 0
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case theme
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# Selecting themes
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set -l cmd $argv[1]
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set -e argv[1]
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if contains -- $cmd list; and set -q argv[1]
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echo "Too many arguments" >&2
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return 1
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end
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set -l dir $__fish_config_dir/themes $__fish_data_dir/tools/web_config/themes
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switch $cmd
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case list ''
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string replace -r '.*/([^/]*).theme$' '$1' $dir/*.theme
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return
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case demo
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echo -ns (set_color $fish_color_command) /bright/vixens
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echo -ns (set_color normal) ' '
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echo -ns (set_color $fish_color_param) jump
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echo -ns (set_color normal) ' '
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echo -ns (set_color $fish_color_redirection) '|'
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echo -ns (set_color normal) ' '
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echo -ns (set_color $fish_color_quote) '"fowl"'
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echo -ns (set_color normal) ' '
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echo -ns (set_color $fish_color_redirection) '> quack'
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echo -ns (set_color normal) ' '
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echo -ns (set_color $fish_color_end) '&'
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set_color normal
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echo -s (set_color $fish_color_comment) ' # This is a comment'
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set_color normal
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echo -ns (set_color $fish_color_command) echo
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echo -ns (set_color normal) ' '
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echo -s (set_color $fish_color_error) "'Errors are the portal to discovery"
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set_color normal
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echo -ns (set_color $fish_color_command) Th
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set_color normal
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set_color $fish_color_autosuggestion
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echo is is an autosuggestion
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echo
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case show
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set -l fish (status fish-path)
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set -l themes $dir/$argv.theme
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set -q themes[1]; or set themes $dir/*.theme
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set -l used_themes
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echo -s (set_color normal; set_color --underline) Current (set_color normal)
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fish_config theme demo
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for t in $themes
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not test -e "$t"
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and continue
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set -l themename (string replace -r '.*/([^/]*).theme$' '$1' $t)
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contains -- $themename $used_themes
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and continue
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set -a used_themes $themename
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echo -s (set_color normal; set_color --underline) $themename (set_color normal)
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# Use a new, --no-config, fish to display the theme.
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# So we can use this function, explicitly source it before anything else!
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functions fish_config | $fish -C "source -" --no-config -c '
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fish_config theme choose $argv
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fish_config theme demo $argv
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' $themename
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end
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case choose save
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if set -q argv[2]
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echo "Too many arguments" >&2
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return 1
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end
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if not set -q argv[1]
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echo "Too few arguments" >&2
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return 1
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end
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set -l files $dir/$argv[1].theme
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set -l file
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set -l scope -g
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if contains -- $cmd save
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read -P"Overwrite theme? [y/N]" -l yesno
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if not string match -riq 'y(es)?' -- $yesno
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echo Not overwriting >&2
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return 1
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end
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set scope -U
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end
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for f in $files
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if test -e "$f"
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set file $f
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break
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end
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end
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if not set -q file[1]
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echo "No such theme: $argv[1]" >&2
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echo "Dirs: $dir" >&2
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return 1
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end
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set -l have_color 0
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while read -lat toks
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# We only allow color variables.
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# Not the specific list, but something named *like* a color variable.
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#
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# This also takes care of empty lines and comment lines.
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string match -rq '^fish_(?:pager_)?color.*$' -- $toks[1]
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or continue
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# Note: This can warn about global variables shadowing the universal
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# versions we create.
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# We want that warning to go through, because we *can't*
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# permanently remove the globals.
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set $scope $toks
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set have_color 1
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end < $file
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# Return true if we changed at least one color
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test $have_color -eq 1
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return
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case dump
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# Write the current theme in .theme format, to stdout.
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set -L | string match -r '^fish_(?:pager_)?color.*$'
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case '*'
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echo "No such command: $cmd" >&2
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return 1
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end
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end
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end
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