Problem: zip-plugin has problems with special characters
(user202729)
Solution: escape '*?[\' on Unix and handle those chars
a bit differently on MS-Windows, add a test, check
before overwriting files
runtime(zip): small fixes for zip plugin
This does the following:
- verify the unzip plugin is executable when loading the autoload plugin
- handle extracting file names with '[*?\' in its name correctly by
escaping those characters for the unzip command (and handle those
characters a bit differently on MS-Windows, since the quoting is different)
- verify, that the extract plugin is not overwriting a file (could cause
a hang, because unzip asking for confirmation)
- add a test zip file which contains those special file names
fixes: #15505closes: #15519
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: zip plugin does not work with Vim 9.0
because of :defer
Solution: raise minimum Vim version to Vim 9.1
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: RestoreOpts() plugin called too often
Solution: use :defer to have the RestoreOpts() function
called when the function returns automatically
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: the zip plugin duplicates a lot of code for displaying
warnings/errors
Solution: refactor common code into a generic Mess() function
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: the zip plugin uses features of Vim 9.0, but
checks for a Vim version >= 7.2
(interpolated strings and readblob() function)
Solution: raise the minimum Vim version to v9.0
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: zip plugin has no way to set/restore option values
Solution: Add the SetSaneOpts() and RestoreOpts() functions,
so options that cause issues are set to sane values
and restored back to their initial values later on.
(this affects the 'shellslash' option on windows, which also
changes how the shellescape() function works)
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: zip plugin tests for fnameescape() function
Solution: Remove the check, fnameescape() has been available since
7.1.299, it should nowadays always be available
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: zip plugin uses :echo which does not store messages
Solution: use :echomsg instead of :echo so that messages are stored in
the message history
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: zip plugin contains a lot of comments from the decho plugin
Solution: Clean up and remove un-used comments
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: Cannot browse zipfiles with the unzip program found
on FreeBSD.
Solution: Adjust command arguments.
Unzip found on FreeBSD complain about missing argument with the
zipinfo modifier '-Z -1'. Joining arguments seems to work
for both implementations.
Also change `:sil!` to `:sil` so that error messages are properly
reported (per review of Christian Brabandt).
related: #15411
Signed-off-by: Damien <141588647+xrandomname@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: After 6f1cbfc9ab483a09877e153ad130164875c40b1d fnameescape()
is no longer called on the name of the file to be extracted.
However, while spaces indeed don't need to be escaped, unzip
treats '[' as a wildcard character, so it need to be escaped.
Solution: Escape '[' on both MS-Windows and Unix.
From the docs it seems '*' and '?' also need escaping, but they seem to
actually work without escaping.
fixes: neovim/neovim#29977
closes: #15427
Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
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: #15396
Signed-off-by: Damien <141588647+xrandomname@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This is safer because we don't invoke the shell.
closes: #15335
Signed-off-by: Damien <141588647+xrandomname@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: Enter 'x' in zip browser fail with E121
Solution: Fix typo in zip#Extract()
closes: #15321
Signed-off-by: Damien <141588647+xrandomname@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This was wrongly included as of patch 1c67342912
because apparently I messed up the use of git apply :/
Signed-off-by: Christian Brabandt <cb@256bit.org>
This change does the following 3 things:
1) non need to quote the file to be extracted
The zipfile plugin used to quote and fnameescape() the path to the
file to be extracted. However testing with unzip showed, that while this
works on Linux on Windows you shall not escape the blanks in filenames.
As long as the pathname is properly quoted, this words on Linux and
Windows.
2) reset shellslash (MS-Windows only)
When shellslash is set, filenames to the zip archive will be forward
quoted. However since the filename is eventually handed over to the
unzip command, we need to make sure to use native paths so that the
command will understand what file to open. Therefore, if shellslash is
set (and the shell is cmd.exe), replace any forward slashes by the
expected backslashes
3) style:
Use tabs for the Header, remove a few comments in the s:Escape() and
zip#read() functions
fixes: #14998
Signed-off-by: Christian Brabandt <cb@256bit.org>
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.
Signed-off-by: D. Ben Knoble <ben.knoble+github@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
In case the current directory is present as valid $PATH entry, it is OK
to call the program from it, even if vim curdir is in that same
directory.
(Without that patch, for instance, you will not be able to open .zip
files while your current directory is /bin)
closes: #13027
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: runtime files may execute code in current dir
Solution: only execute, if not run from current directory
The perl, zig and ruby filetype plugins and the zip and gzip autoload
plugins may try to load malicious executable files from the current
working directory. This is especially a problem on windows, where the
current directory is implicitly in your $PATH and windows may even run a
file with the extension `.bat` because of $PATHEXT.
So make sure that we are not trying to execute a file from the current
directory. If this would be the case, error out (for the zip and gzip)
plugins or silently do not run those commands (for the ftplugins).
This assumes, that only the current working directory is bad. For all
other directories, it is assumed that those directories were
intentionally set to the $PATH by the user.
Signed-off-by: Christian Brabandt <cb@256bit.org>
