view src/testdir/test_charsearch.vim @ 33664:06b59278bfcf v9.0.2070

patch 9.0.2070: [security] disallow setting env in restricted mode Commit: https://github.com/vim/vim/commit/6b89dd6a7257a1e2e9c7ea070b407bc4674a5118 Author: Christian Brabandt <cb@256bit.org> Date: Thu Oct 26 22:14:17 2023 +0200 patch 9.0.2070: [security] disallow setting env in restricted mode Problem: [security] disallow setting env in restricted mode Solution: Setting environment variables in restricted mode could potentially be used to execute shell commands. Disallow this. restricted mode: disable allow setting of environment variables Setting environment variables in restricted mode, may have some unwanted consequences. So, for example by setting $GCONV_PATH in restricted mode and then calling the iconv() function, one may be able to execute some unwanted payload, because the `iconv_open()` function internally uses the `$GCONV_PATH` variable to find its conversion data. So let's disable setting environment variables, even so this is no complete protection, since we are not clearing the existing environment. I tried a few ways but wasn't successful :( One could also argue to disable the iconv() function completely in restricted mode, but who knows what other API functions can be influenced by setting some other unrelated environment variables. So let's leave it as it is currently. closes: #13394 See: https://huntr.com/bounties/b0a2eda1-459c-4e36-98e6-0cc7d7faccfe/ Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Thu, 26 Oct 2023 22:30:03 +0200
parents 695b50472e85
children
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" Test for character search commands - t, T, f, F, ; and ,

func Test_charsearch()
  enew!
  call append(0, ['Xabcdefghijkemnopqretuvwxyz',
	      \ 'Yabcdefghijkemnopqretuvwxyz',
	      \ 'Zabcdefghijkemnokqretkvwxyz'])
  " check that "fe" and ";" work
  1
  normal! ylfep;;p,,p
  call assert_equal('XabcdeXfghijkeXmnopqreXtuvwxyz', getline(1))
  " check that save/restore works
  2
  normal! ylfep
  let csave = getcharsearch()
  normal! fip
  call setcharsearch(csave)
  normal! ;p;p
  call assert_equal('YabcdeYfghiYjkeYmnopqreYtuvwxyz', getline(2))

  " check that setcharsearch() changes the settings.
  3
  normal! ylfep
  eval {'char': 'k'}->setcharsearch()
  normal! ;p
  call setcharsearch({'forward': 0})
  normal! $;p
  call setcharsearch({'until': 1})
  set cpo-=;
  normal! ;;p
  call assert_equal('ZabcdeZfghijkZZemnokqretkZvwxyz', getline(3))

  " check that repeating a search before and after a line fails
  normal 3Gfv
  call assert_beeps('normal ;')
  call assert_beeps('normal ,')

  " clear the character search
  call setcharsearch({'char' : ''})
  call assert_equal('', getcharsearch().char)
  call assert_beeps('normal ;')
  call assert_beeps('normal ,')

  call assert_fails("call setcharsearch([])", 'E1206:')
  enew!
endfunc

" Test for character search in virtual edit mode with <Tab>
func Test_csearch_virtualedit()
  new
  set virtualedit=all
  call setline(1, "a\tb")
  normal! tb
  call assert_equal([0, 1, 2, 6], getpos('.'))
  set virtualedit&
  bw!
endfunc

" Test for character search failure in latin1 encoding
func Test_charsearch_latin1()
  new
  let save_enc = &encoding
  set encoding=latin1
  call setline(1, 'abcdefghijk')
  call assert_beeps('normal fz')
  call assert_beeps('normal tx')
  call assert_beeps('normal $Fz')
  call assert_beeps('normal $Tx')
  let &encoding = save_enc
  bw!
endfunc

" Test for using character search to find a multibyte character with composing
" characters.
func Test_charsearch_composing_char()
  new
  call setline(1, "one two thq\u0328\u0301r\u0328\u0301ree")
  call feedkeys("fr\u0328\u0301", 'xt')
  call assert_equal([0, 1, 16, 0, 12], getcurpos())

  " use character search with a multi-byte character followed by a
  " non-composing character
  call setline(1, "abc deȉf ghi")
  call feedkeys("ggcf\u0209\u0210", 'xt')
  call assert_equal("\u0210f ghi", getline(1))
  bw!
endfunc

" Test for character search with 'hkmap'
func Test_charsearch_hkmap()
  new
  set hkmap
  call setline(1, "ùðáâ÷ëòéïçìêöî")
  call feedkeys("fë", 'xt')
  call assert_equal([0, 1, 11, 0, 6], getcurpos())
  set hkmap&
  bw!
endfunc

" vim: shiftwidth=2 sts=2 expandtab