Bug #74472 [Com]: readdir strips leading and trailing quotes in a filename

From: Date: Wed, 19 Apr 2017 14:36:59 +0000
Subject: Bug #74472 [Com]: readdir strips leading and trailing quotes in a filename
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=74472&edit=1 ID: 74472 Comment by: spam2 at rhsoft dot net Reported by: james at workinout dot com Summary: readdir strips leading and trailing quotes in a filename Status: Not a bug Type: Bug Package: Filesystem function related Operating System: Fedora PHP Version: 7.1.4 Block user comment: N Private report: N New Comment: > escapeshellarg() works. after it adds back single quotes around the file there is nothing to add BACK because there was nothing > using echo shows the single quotes are added back no > but as i said below, readdir() is stripping the quotes, DAMNED there are no quotes in the filename, read the responses you got here and try to understand at least the basics > otherwise, I would not need to use escapeshellarg DAMNED you ALWAYS have to use escapeshellarg() when you supply soemting as shell param BECAUSE it filename could contain a space or special chars which are DANGEROUS and could pe interpreted by the caller in unpredicatable ways SIMPLE EXAMPLE: file is called '-rf *' and yes YOU CAN create such file by "touch \*" - guess what happens with passthru("rm /folder/$file"); Previous Comments: ------------------------------------------------------------------------ [2017-04-19 14:29:57] requinix@php.net James. There are no quotes in the filename. Not at all. ls is lying to you. ------------------------------------------------------------------------ [2017-04-19 14:25:24] james at workinout dot com escapeshellarg() works. after it adds back single quotes around the file then stat works. using echo shows the single quotes are added back. but as i said below, readdir() is stripping the quotes, otherwise, I would not need to use escapeshellarg. as someone said below, its better not to use quotes in filenames .. ------------------------------------------------------------------------ [2017-04-19 08:27:47] spam2 at rhsoft dot net well, whatever theme he is using - i would stop to use anything from that developer which did not get the basics that a filename on webservers only should have [a-z][0-9]-_ meaning no special chars, no spaces, no uppercase letters anyways the "ls" out put is to help noobs copy&paste stat with spaces versus stat 'with spaces' however, it's not uncommon that outputs of interactive shells are different than what scripts really see (colors, automatic paging and so on) - hence pipe it through "cat" leads to get the non-interactive version because of the pipe ------------------------------------------------------------------------ [2017-04-19 08:11:05] requinix@php.net Then that would explain why OP thought the filename had quotes. ...wow, that's a stupid decision. ------------------------------------------------------------------------ [2017-04-19 08:03:52] spam2 at rhsoft dot net requinix@php.net: you missed the "actually, running it all on fedora 25" and most likely you use some outdated stuff like Debian here you go: https://bugzilla.redhat.com/show_bug.cgi?id=1361694 https://unix.stackexchange.com/questions/258679/why-is-ls-suddenly-wrapping-items-with-spaces-in-single-quotes [harry@rh:/downloads]$ /bin/ls -la insgesamt 132 drwxrwxrwt 2 root root 122880 19. Apr 10:01 . drwxr-xr-x+ 36 harry root 4096 16. Mär 15:44 .. -rw-r----- 1 harry verwaltung 0 19. Apr 10:01 'with spaces' [harry@rh:/downloads]$ /bin/ls -la | cat insgesamt 132 drwxrwxrwt 2 root root 122880 19. Apr 10:01 . drwxr-xr-x+ 36 harry root 4096 16. Mär 15:44 .. -rw-r----- 1 harry verwaltung 0 19. Apr 10:01 with spaces ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=74472 -- Edit this bug report at https://bugs.php.net/bug.php?id=74472&edit=1

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