neovim/runtime/autoload/zip.vim
Christian Clason 34fa34e720 vim-patch:c4be066: runtime(zip): Opening a remote zipfile don't work
Problem:  Opening a zipfile from HTTP gives an empty buffer.
Solution: Ensure that the magic bytes check does not
          skip protocol processing.

Also use readblob() and remove commented out lines.

closes: vim/vim#15396

c4be066817

Co-authored-by: Damien <141588647+xrandomname@users.noreply.github.com>
2024-07-31 00:18:43 +02:00

457 lines
14 KiB
VimL

" zip.vim: Handles browsing zipfiles
" AUTOLOAD PORTION
" Date: Jul 30, 2024
" Version: 33
" Maintainer: This runtime file is looking for a new maintainer.
" Former Maintainer: Charles E Campbell
" Last Change:
" 2024 Jun 16 by Vim Project: handle whitespace on Windows properly (#14998)
" 2024 Jul 23 by Vim Project: fix 'x' command
" 2024 Jul 24 by Vim Project: use delete() function
" 2024 Jul 20 by Vim Project: fix opening remote zipfile
" License: Vim License (see vim's :help license)
" Copyright: Copyright (C) 2005-2019 Charles E. Campbell {{{1
" Permission is hereby granted to use and distribute this code,
" with or without modifications, provided that this copyright
" notice is copied with it. Like anything else that's free,
" zip.vim and zipPlugin.vim are provided *as is* and comes with
" no warranty of any kind, either expressed or implied. By using
" this plugin, you agree that in no event will the copyright
" holder be liable for any damages resulting from the use
" of this software.
" ---------------------------------------------------------------------
" Load Once: {{{1
if &cp || exists("g:loaded_zip")
finish
endif
let g:loaded_zip= "v33"
if v:version < 702
echohl WarningMsg
echo "***warning*** this version of zip needs vim 7.2 or later"
echohl Normal
finish
endif
let s:keepcpo= &cpo
set cpo&vim
"DechoTabOn
let s:zipfile_escape = ' ?&;\'
let s:ERROR = 2
let s:WARNING = 1
let s:NOTE = 0
" ---------------------------------------------------------------------
" Global Values: {{{1
if !exists("g:zip_shq")
if &shq != ""
let g:zip_shq= &shq
elseif has("unix")
let g:zip_shq= "'"
else
let g:zip_shq= '"'
endif
endif
if !exists("g:zip_zipcmd")
let g:zip_zipcmd= "zip"
endif
if !exists("g:zip_unzipcmd")
let g:zip_unzipcmd= "unzip"
endif
if !exists("g:zip_extractcmd")
let g:zip_extractcmd= g:zip_unzipcmd
endif
if !dist#vim#IsSafeExecutable('zip', g:zip_unzipcmd)
echoerr "Warning: NOT executing " .. g:zip_unzipcmd .. " from current directory!"
finish
endif
" ----------------
" Functions: {{{1
" ----------------
" ---------------------------------------------------------------------
" zip#Browse: {{{2
fun! zip#Browse(zipfile)
" sanity check: ensure that the zipfile has "PK" as its first two letters
" (zip files have a leading PK as a "magic cookie")
if filereadable(a:zipfile) && readblob(a:zipfile, 0, 2) != 0z50.4B
exe "noswapfile noautocmd e " .. fnameescape(a:zipfile)
return
endif
let repkeep= &report
set report=10
" sanity checks
if !exists("*fnameescape")
if &verbose > 1
echoerr "the zip plugin is not available (your vim doesn't support fnameescape())"
endif
return
endif
if !executable(g:zip_unzipcmd)
redraw!
echohl Error | echo "***error*** (zip#Browse) unzip not available on your system"
let &report= repkeep
return
endif
if !filereadable(a:zipfile)
if a:zipfile !~# '^\a\+://'
" if it's an url, don't complain, let url-handlers such as vim do its thing
redraw!
echohl Error | echo "***error*** (zip#Browse) File not readable<".a:zipfile.">" | echohl None
endif
let &report= repkeep
return
endif
if &ma != 1
set ma
endif
let b:zipfile= a:zipfile
setlocal noswapfile
setlocal buftype=nofile
setlocal bufhidden=hide
setlocal nobuflisted
setlocal nowrap
" Oct 12, 2021: need to re-use Bram's syntax/tar.vim.
" Setting the filetype to zip doesn't do anything (currently),
" but it is perhaps less confusing to curious perusers who do
" a :echo &ft
setf zip
run! syntax/tar.vim
" give header
call append(0, ['" zip.vim version '.g:loaded_zip,
\ '" Browsing zipfile '.a:zipfile,
\ '" Select a file with cursor and press ENTER'])
keepj $
" call Decho("exe silent r! ".g:zip_unzipcmd." -l -- ".s:Escape(a:zipfile,1))
exe "keepj sil! r! ".g:zip_unzipcmd." -Z -1 -- ".s:Escape(a:zipfile,1)
if v:shell_error != 0
redraw!
echohl WarningMsg | echo "***warning*** (zip#Browse) ".fnameescape(a:zipfile)." is not a zip file" | echohl None
" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
keepj sil! %d
let eikeep= &ei
set ei=BufReadCmd,FileReadCmd
exe "keepj r ".fnameescape(a:zipfile)
let &ei= eikeep
keepj 1d
" call Dret("zip#Browse")
return
endif
" Maps associated with zip plugin
setlocal noma nomod ro
noremap <silent> <buffer> <cr> :call <SID>ZipBrowseSelect()<cr>
noremap <silent> <buffer> x :call zip#Extract()<cr>
if &mouse != ""
noremap <silent> <buffer> <leftmouse> <leftmouse>:call <SID>ZipBrowseSelect()<cr>
endif
let &report= repkeep
" call Dret("zip#Browse")
endfun
" ---------------------------------------------------------------------
" ZipBrowseSelect: {{{2
fun! s:ZipBrowseSelect()
" call Dfunc("ZipBrowseSelect() zipfile<".((exists("b:zipfile"))? b:zipfile : "n/a")."> curfile<".expand("%").">")
let repkeep= &report
set report=10
let fname= getline(".")
if !exists("b:zipfile")
" call Dret("ZipBrowseSelect : b:zipfile doesn't exist!")
return
endif
" sanity check
if fname =~ '^"'
let &report= repkeep
" call Dret("ZipBrowseSelect")
return
endif
if fname =~ '/$'
redraw!
echohl Error | echo "***error*** (zip#Browse) Please specify a file, not a directory" | echohl None
" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
let &report= repkeep
" call Dret("ZipBrowseSelect")
return
endif
" call Decho("fname<".fname.">")
" get zipfile to the new-window
let zipfile = b:zipfile
let curfile = expand("%")
" call Decho("zipfile<".zipfile.">")
" call Decho("curfile<".curfile.">")
noswapfile new
if !exists("g:zip_nomax") || g:zip_nomax == 0
wincmd _
endif
let s:zipfile_{winnr()}= curfile
" call Decho("exe e ".fnameescape("zipfile://".zipfile.'::'.fname))
exe "noswapfile e ".fnameescape("zipfile://".zipfile.'::'.fname)
filetype detect
let &report= repkeep
" call Dret("ZipBrowseSelect : s:zipfile_".winnr()."<".s:zipfile_{winnr()}.">")
endfun
" ---------------------------------------------------------------------
" zip#Read: {{{2
fun! zip#Read(fname,mode)
let repkeep= &report
set report=10
if has("unix")
let zipfile = substitute(a:fname,'zipfile://\(.\{-}\)::[^\\].*$','\1','')
let fname = substitute(a:fname,'zipfile://.\{-}::\([^\\].*\)$','\1','')
else
let zipfile = substitute(a:fname,'^.\{-}zipfile://\(.\{-}\)::[^\\].*$','\1','')
let fname = substitute(a:fname,'^.\{-}zipfile://.\{-}::\([^\\].*\)$','\1','')
let fname = substitute(fname, '[', '[[]', 'g')
endif
" sanity check
if !executable(substitute(g:zip_unzipcmd,'\s\+.*$','',''))
redraw!
echohl Error | echo "***error*** (zip#Read) sorry, your system doesn't appear to have the ".g:zip_unzipcmd." program" | echohl None
" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
let &report= repkeep
return
endif
" the following code does much the same thing as
" exe "keepj sil! r! ".g:zip_unzipcmd." -p -- ".s:Escape(zipfile,1)." ".s:Escape(fnameescape(fname),1)
" but allows zipfile://... entries in quickfix lists
let temp = tempname()
let fn = expand('%:p')
exe "sil! !".g:zip_unzipcmd." -p -- ".s:Escape(zipfile,1)." ".s:Escape(fname,1).' > '.temp
sil exe 'keepalt file '.temp
sil keepj e!
sil exe 'keepalt file '.fnameescape(fn)
call delete(temp)
filetype detect
" cleanup
set nomod
let &report= repkeep
endfun
" ---------------------------------------------------------------------
" zip#Write: {{{2
fun! zip#Write(fname)
" call Dfunc("zip#Write(fname<".a:fname.">) zipfile_".winnr()."<".s:zipfile_{winnr()}.">")
let repkeep= &report
set report=10
" sanity checks
if !executable(substitute(g:zip_zipcmd,'\s\+.*$','',''))
redraw!
echohl Error | echo "***error*** (zip#Write) sorry, your system doesn't appear to have the ".g:zip_zipcmd." program" | echohl None
" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
let &report= repkeep
" call Dret("zip#Write")
return
endif
if !exists("*mkdir")
redraw!
echohl Error | echo "***error*** (zip#Write) sorry, mkdir() doesn't work on your system" | echohl None
" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
let &report= repkeep
" call Dret("zip#Write")
return
endif
let curdir= getcwd()
let tmpdir= tempname()
" call Decho("orig tempname<".tmpdir.">")
if tmpdir =~ '\.'
let tmpdir= substitute(tmpdir,'\.[^.]*$','','e')
endif
" call Decho("tmpdir<".tmpdir.">")
call mkdir(tmpdir,"p")
" attempt to change to the indicated directory
if s:ChgDir(tmpdir,s:ERROR,"(zip#Write) cannot cd to temporary directory")
let &report= repkeep
" call Dret("zip#Write")
return
endif
" call Decho("current directory now: ".getcwd())
" place temporary files under .../_ZIPVIM_/
if isdirectory("_ZIPVIM_")
call delete("_ZIPVIM_", "rf")
endif
call mkdir("_ZIPVIM_")
cd _ZIPVIM_
" call Decho("current directory now: ".getcwd())
if has("unix")
let zipfile = substitute(a:fname,'zipfile://\(.\{-}\)::[^\\].*$','\1','')
let fname = substitute(a:fname,'zipfile://.\{-}::\([^\\].*\)$','\1','')
else
let zipfile = substitute(a:fname,'^.\{-}zipfile://\(.\{-}\)::[^\\].*$','\1','')
let fname = substitute(a:fname,'^.\{-}zipfile://.\{-}::\([^\\].*\)$','\1','')
endif
" call Decho("zipfile<".zipfile.">")
" call Decho("fname <".fname.">")
if fname =~ '/'
let dirpath = substitute(fname,'/[^/]\+$','','e')
if has("win32unix") && executable("cygpath")
let dirpath = substitute(system("cygpath ".s:Escape(dirpath,0)),'\n','','e')
endif
" call Decho("mkdir(dirpath<".dirpath.">,p)")
call mkdir(dirpath,"p")
endif
if zipfile !~ '/'
let zipfile= curdir.'/'.zipfile
endif
" call Decho("zipfile<".zipfile."> fname<".fname.">")
exe "w! ".fnameescape(fname)
if has("win32unix") && executable("cygpath")
let zipfile = substitute(system("cygpath ".s:Escape(zipfile,0)),'\n','','e')
endif
if (has("win32") || has("win95") || has("win64") || has("win16")) && &shell !~? 'sh$'
let fname = substitute(fname, '[', '[[]', 'g')
endif
" call Decho(g:zip_zipcmd." -u ".s:Escape(fnamemodify(zipfile,":p"),0)." ".s:Escape(fname,0))
call system(g:zip_zipcmd." -u ".s:Escape(fnamemodify(zipfile,":p"),0)." ".s:Escape(fname,0))
if v:shell_error != 0
redraw!
echohl Error | echo "***error*** (zip#Write) sorry, unable to update ".zipfile." with ".fname | echohl None
" call inputsave()|call input("Press <cr> to continue")|call inputrestore()
elseif s:zipfile_{winnr()} =~ '^\a\+://'
" support writing zipfiles across a network
let netzipfile= s:zipfile_{winnr()}
" call Decho("handle writing <".zipfile."> across network as <".netzipfile.">")
1split|enew
let binkeep= &binary
let eikeep = &ei
set binary ei=all
exe "noswapfile e! ".fnameescape(zipfile)
call netrw#NetWrite(netzipfile)
let &ei = eikeep
let &binary = binkeep
q!
unlet s:zipfile_{winnr()}
endif
" cleanup and restore current directory
cd ..
call delete("_ZIPVIM_", "rf")
call s:ChgDir(curdir,s:WARNING,"(zip#Write) unable to return to ".curdir."!")
call delete(tmpdir, "rf")
setlocal nomod
let &report= repkeep
" call Dret("zip#Write")
endfun
" ---------------------------------------------------------------------
" zip#Extract: extract a file from a zip archive {{{2
fun! zip#Extract()
" call Dfunc("zip#Extract()")
let repkeep= &report
set report=10
let fname= getline(".")
" call Decho("fname<".fname.">")
" sanity check
if fname =~ '^"'
let &report= repkeep
" call Dret("zip#Extract")
return
endif
if fname =~ '/$'
redraw!
echohl Error | echo "***error*** (zip#Extract) Please specify a file, not a directory" | echohl None
let &report= repkeep
" call Dret("zip#Extract")
return
endif
" extract the file mentioned under the cursor
call system($"{g:zip_extractcmd} {shellescape(b:zipfile)} {shellescape(fname)}")
" call Decho("zipfile<".b:zipfile.">")
if v:shell_error != 0
echohl Error | echo "***error*** ".g:zip_extractcmd." ".b:zipfile." ".fname.": failed!" | echohl NONE
elseif !filereadable(fname)
echohl Error | echo "***error*** attempted to extract ".fname." but it doesn't appear to be present!"
else
echo "***note*** successfully extracted ".fname
endif
" restore option
let &report= repkeep
" call Dret("zip#Extract")
endfun
" ---------------------------------------------------------------------
" s:Escape: {{{2
fun! s:Escape(fname,isfilt)
if exists("*shellescape")
if a:isfilt
let qnameq= shellescape(a:fname,1)
else
let qnameq= shellescape(a:fname)
endif
else
let qnameq= g:zip_shq.escape(a:fname,g:zip_shq).g:zip_shq
endif
if exists("+shellslash") && &shellslash && &shell =~ "cmd.exe"
" renormalize directory separator on Windows
let qnameq=substitute(qnameq, '/', '\\', 'g')
endif
return qnameq
endfun
" ---------------------------------------------------------------------
" ChgDir: {{{2
fun! s:ChgDir(newdir,errlvl,errmsg)
" 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
" ------------------------------------------------------------------------
" Modelines And Restoration: {{{1
let &cpo= s:keepcpo
unlet s:keepcpo
" vim:ts=8 fdm=marker