mirror of
https://github.com/neovim/neovim.git
synced 2024-12-20 11:15:14 -07:00
26cdff0e92
runtime(dist): centralize safe executable check and add vim library (vim/vim#13413)
Follow up to 816fbcc26 (patch 9.0.1833: [security] runtime file fixes,
2023-08-31) and f7ac0ef50 (runtime: don't execute external commands when
loading ftplugins, 2023-09-06).
This puts the logic for safe executable checks in a single place, by introducing
a central vim library, so all filetypes benefit from consistency.
Notable changes:
- dist#vim because the (autoload) namespace for a new runtime support
library. Supporting functions should get documentation. It might make
life easier for NeoVim devs to make the documentation a new file
rather than cram it into existing files, though we may want
cross-references to it somewhere…
- The gzip and zip plugins need to be opted into by enabling execution
of those programs (or the global plugin_exec). This needs
documentation or discussion.
- This fixes a bug in the zig plugin: code setting s:tmp_cwd was removed
in f7ac0ef50 (runtime: don't execute external commands when loading
ftplugins, 2023-09-06), but the variable was still referenced. Since
the new function takes care of that automatically, the variable is no
longer needed.
cd8a3eaf53
Co-authored-by: D. Ben Knoble <ben.knoble+github@gmail.com>
480 lines
15 KiB
VimL
480 lines
15 KiB
VimL
" zip.vim: Handles browsing zipfiles
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" AUTOLOAD PORTION
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" Date: Mar 12, 2023
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" Version: 33
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" Maintainer: Charles E Campbell <NcampObell@SdrPchip.AorgM-NOSPAM>
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" License: Vim License (see vim's :help license)
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" Copyright: Copyright (C) 2005-2019 Charles E. Campbell {{{1
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" Permission is hereby granted to use and distribute this code,
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" with or without modifications, provided that this copyright
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" notice is copied with it. Like anything else that's free,
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" zip.vim and zipPlugin.vim are provided *as is* and comes with
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" no warranty of any kind, either expressed or implied. By using
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" this plugin, you agree that in no event will the copyright
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" holder be liable for any damages resulting from the use
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" of this software.
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"redraw!|call DechoSep()|call inputsave()|call input("Press <cr> to continue")|call inputrestore()
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" ---------------------------------------------------------------------
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" Load Once: {{{1
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if &cp || exists("g:loaded_zip")
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finish
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endif
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let g:loaded_zip= "v33"
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if v:version < 702
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echohl WarningMsg
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echo "***warning*** this version of zip needs vim 7.2 or later"
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echohl Normal
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finish
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endif
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let s:keepcpo= &cpo
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set cpo&vim
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"DechoTabOn
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let s:zipfile_escape = ' ?&;\'
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let s:ERROR = 2
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let s:WARNING = 1
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let s:NOTE = 0
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" ---------------------------------------------------------------------
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" Global Values: {{{1
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if !exists("g:zip_shq")
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if &shq != ""
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let g:zip_shq= &shq
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elseif has("unix")
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let g:zip_shq= "'"
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else
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let g:zip_shq= '"'
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endif
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endif
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if !exists("g:zip_zipcmd")
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let g:zip_zipcmd= "zip"
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endif
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if !exists("g:zip_unzipcmd")
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let g:zip_unzipcmd= "unzip"
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endif
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if !exists("g:zip_extractcmd")
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let g:zip_extractcmd= g:zip_unzipcmd
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endif
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if !dist#vim#IsSafeExecutable('zip', g:zip_unzipcmd)
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echoerr "Warning: NOT executing " .. g:zip_unzipcmd .. " from current directory!"
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finish
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endif
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" ----------------
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" Functions: {{{1
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" ----------------
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" ---------------------------------------------------------------------
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" zip#Browse: {{{2
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fun! zip#Browse(zipfile)
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" call Dfunc("zip#Browse(zipfile<".a:zipfile.">)")
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" sanity check: insure that the zipfile has "PK" as its first two letters
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" (zipped files have a leading PK as a "magic cookie")
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if !filereadable(a:zipfile) || readfile(a:zipfile, "", 1)[0] !~ '^PK'
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exe "noswapfile noautocmd noswapfile e ".fnameescape(a:zipfile)
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" call Dret("zip#Browse : not a zipfile<".a:zipfile.">")
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return
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" else " Decho
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" call Decho("zip#Browse: a:zipfile<".a:zipfile."> passed PK test - it's a zip file")
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endif
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let repkeep= &report
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set report=10
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" sanity checks
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if !exists("*fnameescape")
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if &verbose > 1
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echoerr "the zip plugin is not available (your vim doesn't support fnameescape())"
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endif
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return
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endif
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if !executable(g:zip_unzipcmd)
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redraw!
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echohl Error | echo "***error*** (zip#Browse) unzip not available on your system"
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" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
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let &report= repkeep
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" call Dret("zip#Browse")
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return
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endif
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if !filereadable(a:zipfile)
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if a:zipfile !~# '^\a\+://'
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" if it's an url, don't complain, let url-handlers such as vim do its thing
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redraw!
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echohl Error | echo "***error*** (zip#Browse) File not readable<".a:zipfile.">" | echohl None
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" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
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endif
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let &report= repkeep
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" call Dret("zip#Browse : file<".a:zipfile."> not readable")
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return
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endif
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" call Decho("passed sanity checks")
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if &ma != 1
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set ma
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endif
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let b:zipfile= a:zipfile
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setlocal noswapfile
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setlocal buftype=nofile
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setlocal bufhidden=hide
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setlocal nobuflisted
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setlocal nowrap
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" Oct 12, 2021: need to re-use Bram's syntax/tar.vim.
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" Setting the filetype to zip doesn't do anything (currently),
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" but it is perhaps less confusing to curious perusers who do
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" a :echo &ft
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setf zip
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run! syntax/tar.vim
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" give header
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call append(0, ['" zip.vim version '.g:loaded_zip,
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\ '" Browsing zipfile '.a:zipfile,
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\ '" Select a file with cursor and press ENTER'])
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keepj $
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" call Decho("exe silent r! ".g:zip_unzipcmd." -l -- ".s:Escape(a:zipfile,1))
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exe "keepj sil! r! ".g:zip_unzipcmd." -Z -1 -- ".s:Escape(a:zipfile,1)
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if v:shell_error != 0
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redraw!
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echohl WarningMsg | echo "***warning*** (zip#Browse) ".fnameescape(a:zipfile)." is not a zip file" | echohl None
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" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
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keepj sil! %d
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let eikeep= &ei
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set ei=BufReadCmd,FileReadCmd
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exe "keepj r ".fnameescape(a:zipfile)
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let &ei= eikeep
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keepj 1d
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" call Dret("zip#Browse")
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return
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endif
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" Maps associated with zip plugin
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setlocal noma nomod ro
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noremap <silent> <buffer> <cr> :call <SID>ZipBrowseSelect()<cr>
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noremap <silent> <buffer> x :call zip#Extract()<cr>
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if &mouse != ""
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noremap <silent> <buffer> <leftmouse> <leftmouse>:call <SID>ZipBrowseSelect()<cr>
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endif
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let &report= repkeep
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" call Dret("zip#Browse")
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endfun
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" ---------------------------------------------------------------------
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" ZipBrowseSelect: {{{2
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fun! s:ZipBrowseSelect()
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" call Dfunc("ZipBrowseSelect() zipfile<".((exists("b:zipfile"))? b:zipfile : "n/a")."> curfile<".expand("%").">")
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let repkeep= &report
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set report=10
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let fname= getline(".")
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if !exists("b:zipfile")
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" call Dret("ZipBrowseSelect : b:zipfile doesn't exist!")
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return
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endif
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" sanity check
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if fname =~ '^"'
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let &report= repkeep
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" call Dret("ZipBrowseSelect")
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return
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endif
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if fname =~ '/$'
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redraw!
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echohl Error | echo "***error*** (zip#Browse) Please specify a file, not a directory" | echohl None
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" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
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let &report= repkeep
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" call Dret("ZipBrowseSelect")
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return
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endif
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" call Decho("fname<".fname.">")
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" get zipfile to the new-window
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let zipfile = b:zipfile
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let curfile = expand("%")
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" call Decho("zipfile<".zipfile.">")
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" call Decho("curfile<".curfile.">")
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noswapfile new
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if !exists("g:zip_nomax") || g:zip_nomax == 0
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wincmd _
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endif
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let s:zipfile_{winnr()}= curfile
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" call Decho("exe e ".fnameescape("zipfile://".zipfile.'::'.fname))
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exe "noswapfile e ".fnameescape("zipfile://".zipfile.'::'.fname)
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filetype detect
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let &report= repkeep
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" call Dret("ZipBrowseSelect : s:zipfile_".winnr()."<".s:zipfile_{winnr()}.">")
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endfun
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" ---------------------------------------------------------------------
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" zip#Read: {{{2
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fun! zip#Read(fname,mode)
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" call Dfunc("zip#Read(fname<".a:fname.">,mode=".a:mode.")")
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let repkeep= &report
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set report=10
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if has("unix")
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let zipfile = substitute(a:fname,'zipfile://\(.\{-}\)::[^\\].*$','\1','')
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let fname = substitute(a:fname,'zipfile://.\{-}::\([^\\].*\)$','\1','')
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else
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let zipfile = substitute(a:fname,'^.\{-}zipfile://\(.\{-}\)::[^\\].*$','\1','')
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let fname = substitute(a:fname,'^.\{-}zipfile://.\{-}::\([^\\].*\)$','\1','')
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let fname = substitute(fname, '[', '[[]', 'g')
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endif
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" call Decho("zipfile<".zipfile.">")
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" call Decho("fname <".fname.">")
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" sanity check
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if !executable(substitute(g:zip_unzipcmd,'\s\+.*$','',''))
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redraw!
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echohl Error | echo "***error*** (zip#Read) sorry, your system doesn't appear to have the ".g:zip_unzipcmd." program" | echohl None
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" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
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let &report= repkeep
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" call Dret("zip#Write")
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return
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endif
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" the following code does much the same thing as
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" exe "keepj sil! r! ".g:zip_unzipcmd." -p -- ".s:Escape(zipfile,1)." ".s:Escape(fnameescape(fname),1)
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" but allows zipfile://... entries in quickfix lists
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let temp = tempname()
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" call Decho("using temp file<".temp.">")
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let fn = expand('%:p')
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exe "sil! !".g:zip_unzipcmd." -p -- ".s:Escape(zipfile,1)." ".s:Escape(fnameescape(fname),1).' > '.temp
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" call Decho("exe sil! !".g:zip_unzipcmd." -p -- ".s:Escape(zipfile,1)." ".s:Escape(fnameescape(fname),1).' > '.temp)
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sil exe 'keepalt file '.temp
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sil keepj e!
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sil exe 'keepalt file '.fnameescape(fn)
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call delete(temp)
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filetype detect
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" cleanup
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" keepj 0d " used to be needed for the ...r! ... method
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set nomod
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let &report= repkeep
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" call Dret("zip#Read")
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endfun
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" ---------------------------------------------------------------------
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" zip#Write: {{{2
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fun! zip#Write(fname)
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" call Dfunc("zip#Write(fname<".a:fname.">) zipfile_".winnr()."<".s:zipfile_{winnr()}.">")
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let repkeep= &report
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set report=10
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" sanity checks
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if !executable(substitute(g:zip_zipcmd,'\s\+.*$','',''))
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redraw!
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echohl Error | echo "***error*** (zip#Write) sorry, your system doesn't appear to have the ".g:zip_zipcmd." program" | echohl None
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" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
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let &report= repkeep
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" call Dret("zip#Write")
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return
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endif
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if !exists("*mkdir")
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redraw!
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echohl Error | echo "***error*** (zip#Write) sorry, mkdir() doesn't work on your system" | echohl None
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" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
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let &report= repkeep
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" call Dret("zip#Write")
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return
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endif
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let curdir= getcwd()
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let tmpdir= tempname()
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" call Decho("orig tempname<".tmpdir.">")
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if tmpdir =~ '\.'
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let tmpdir= substitute(tmpdir,'\.[^.]*$','','e')
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endif
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" call Decho("tmpdir<".tmpdir.">")
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call mkdir(tmpdir,"p")
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" attempt to change to the indicated directory
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if s:ChgDir(tmpdir,s:ERROR,"(zip#Write) cannot cd to temporary directory")
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let &report= repkeep
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" call Dret("zip#Write")
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return
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endif
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" call Decho("current directory now: ".getcwd())
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" place temporary files under .../_ZIPVIM_/
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if isdirectory("_ZIPVIM_")
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call s:Rmdir("_ZIPVIM_")
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endif
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call mkdir("_ZIPVIM_")
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cd _ZIPVIM_
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" call Decho("current directory now: ".getcwd())
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if has("unix")
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let zipfile = substitute(a:fname,'zipfile://\(.\{-}\)::[^\\].*$','\1','')
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let fname = substitute(a:fname,'zipfile://.\{-}::\([^\\].*\)$','\1','')
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else
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let zipfile = substitute(a:fname,'^.\{-}zipfile://\(.\{-}\)::[^\\].*$','\1','')
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let fname = substitute(a:fname,'^.\{-}zipfile://.\{-}::\([^\\].*\)$','\1','')
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endif
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" call Decho("zipfile<".zipfile.">")
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" call Decho("fname <".fname.">")
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if fname =~ '/'
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let dirpath = substitute(fname,'/[^/]\+$','','e')
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if has("win32unix") && executable("cygpath")
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let dirpath = substitute(system("cygpath ".s:Escape(dirpath,0)),'\n','','e')
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endif
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" call Decho("mkdir(dirpath<".dirpath.">,p)")
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call mkdir(dirpath,"p")
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endif
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if zipfile !~ '/'
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let zipfile= curdir.'/'.zipfile
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endif
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" call Decho("zipfile<".zipfile."> fname<".fname.">")
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exe "w! ".fnameescape(fname)
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if has("win32unix") && executable("cygpath")
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let zipfile = substitute(system("cygpath ".s:Escape(zipfile,0)),'\n','','e')
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endif
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if (has("win32") || has("win95") || has("win64") || has("win16")) && &shell !~? 'sh$'
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let fname = substitute(fname, '[', '[[]', 'g')
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endif
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" call Decho(g:zip_zipcmd." -u ".s:Escape(fnamemodify(zipfile,":p"),0)." ".s:Escape(fname,0))
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call system(g:zip_zipcmd." -u ".s:Escape(fnamemodify(zipfile,":p"),0)." ".s:Escape(fname,0))
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if v:shell_error != 0
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redraw!
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echohl Error | echo "***error*** (zip#Write) sorry, unable to update ".zipfile." with ".fname | echohl None
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" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
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elseif s:zipfile_{winnr()} =~ '^\a\+://'
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" support writing zipfiles across a network
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let netzipfile= s:zipfile_{winnr()}
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" call Decho("handle writing <".zipfile."> across network as <".netzipfile.">")
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1split|enew
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let binkeep= &binary
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let eikeep = &ei
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set binary ei=all
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exe "noswapfile e! ".fnameescape(zipfile)
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call netrw#NetWrite(netzipfile)
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let &ei = eikeep
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let &binary = binkeep
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q!
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unlet s:zipfile_{winnr()}
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endif
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" cleanup and restore current directory
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cd ..
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call s:Rmdir("_ZIPVIM_")
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call s:ChgDir(curdir,s:WARNING,"(zip#Write) unable to return to ".curdir."!")
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call s:Rmdir(tmpdir)
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setlocal nomod
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let &report= repkeep
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" call Dret("zip#Write")
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endfun
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" ---------------------------------------------------------------------
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" zip#Extract: extract a file from a zip archive {{{2
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fun! zip#Extract()
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" call Dfunc("zip#Extract()")
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let repkeep= &report
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set report=10
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let fname= getline(".")
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" call Decho("fname<".fname.">")
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" sanity check
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if fname =~ '^"'
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let &report= repkeep
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" call Dret("zip#Extract")
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return
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endif
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if fname =~ '/$'
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redraw!
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echohl Error | echo "***error*** (zip#Extract) Please specify a file, not a directory" | echohl None
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let &report= repkeep
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" call Dret("zip#Extract")
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return
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endif
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" extract the file mentioned under the cursor
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" call Decho("system(".g:zip_extractcmd." ".shellescape(b:zipfile)." ".shellescape(shell).")")
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call system(g:zip_extractcmd." ".shellescape(b:zipfile)." ".shellescape(shell))
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" call Decho("zipfile<".b:zipfile.">")
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if v:shell_error != 0
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echohl Error | echo "***error*** ".g:zip_extractcmd." ".b:zipfile." ".fname.": failed!" | echohl NONE
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elseif !filereadable(fname)
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echohl Error | echo "***error*** attempted to extract ".fname." but it doesn't appear to be present!"
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else
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echo "***note*** successfully extracted ".fname
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endif
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" restore option
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let &report= repkeep
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" call Dret("zip#Extract")
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endfun
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" ---------------------------------------------------------------------
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" s:Escape: {{{2
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fun! s:Escape(fname,isfilt)
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" call Dfunc("QuoteFileDir(fname<".a:fname."> isfilt=".a:isfilt.")")
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if exists("*shellescape")
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if a:isfilt
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let qnameq= shellescape(a:fname,1)
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else
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let qnameq= shellescape(a:fname)
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endif
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else
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let qnameq= g:zip_shq.escape(a:fname,g:zip_shq).g:zip_shq
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endif
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" call Dret("QuoteFileDir <".qnameq.">")
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return qnameq
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endfun
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" ---------------------------------------------------------------------
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" ChgDir: {{{2
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fun! s:ChgDir(newdir,errlvl,errmsg)
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" call Dfunc("ChgDir(newdir<".a:newdir."> errlvl=".a:errlvl." errmsg<".a:errmsg.">)")
|
|
|
|
try
|
|
exe "cd ".fnameescape(a:newdir)
|
|
catch /^Vim\%((\a\+)\)\=:E344/
|
|
redraw!
|
|
if a:errlvl == s:NOTE
|
|
echo "***note*** ".a:errmsg
|
|
elseif a:errlvl == s:WARNING
|
|
echohl WarningMsg | echo "***warning*** ".a:errmsg | echohl NONE
|
|
elseif a:errlvl == s:ERROR
|
|
echohl Error | echo "***error*** ".a:errmsg | echohl NONE
|
|
endif
|
|
" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
|
|
" call Dret("ChgDir 1")
|
|
return 1
|
|
endtry
|
|
|
|
" call Dret("ChgDir 0")
|
|
return 0
|
|
endfun
|
|
|
|
" ---------------------------------------------------------------------
|
|
" s:Rmdir: {{{2
|
|
fun! s:Rmdir(fname)
|
|
" call Dfunc("Rmdir(fname<".a:fname.">)")
|
|
if (has("win32") || has("win95") || has("win64") || has("win16")) && &shell !~? 'sh$'
|
|
call system("rmdir /S/Q ".s:Escape(a:fname,0))
|
|
else
|
|
call system("/bin/rm -rf ".s:Escape(a:fname,0))
|
|
endif
|
|
" call Dret("Rmdir")
|
|
endfun
|
|
|
|
" ------------------------------------------------------------------------
|
|
" Modelines And Restoration: {{{1
|
|
let &cpo= s:keepcpo
|
|
unlet s:keepcpo
|
|
" vim:ts=8 fdm=marker
|