From: Dominik Csapak <d.csapak@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH common] fix #5486: tools: encode_text: add '%' to list of encoded characters
Date: Tue, 28 May 2024 13:10:02 +0200 [thread overview]
Message-ID: <20240528111002.2655756-1-d.csapak@proxmox.com> (raw)
all text that is going through encode_text will at a later point be
decoded by 'decode_text'. The latter is decoding all percent encoded
characters, even those not originally encoded by 'encode_text'.
This means, to preserve the original data, we first have to at least
percent encode the '%' itself, otherwise it's impossible to properly
store e.g. '%20' there.
It would get saved as '%20' directly, but on the next read, it gets
decoded to ' ', which is not the original data. instead we have to save
it as '%2520', which gets then correctly decoded to '%20' again
This is especially important for the vm/ct/node description, as there
users can store external links, which already include percent encoded
characters.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
AFAICS, we only use this for comment fields + first/lastname in
access-control, so we should be ok here
src/PVE/Tools.pm | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/PVE/Tools.pm b/src/PVE/Tools.pm
index 766c809..59cc5c9 100644
--- a/src/PVE/Tools.pm
+++ b/src/PVE/Tools.pm
@@ -1246,8 +1246,8 @@ sub upid_normalize_status_type {
sub encode_text {
my ($text) = @_;
- # all control and hi-bit characters, and ':'
- my $unsafe = "^\x20-\x39\x3b-\x7e";
+ # all control and hi-bit characters, ':' and '%'
+ my $unsafe = "^\x20-\x24\x26-\x39\x3b-\x7e";
return uri_escape(Encode::encode("utf8", $text), $unsafe);
}
--
2.39.2
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next reply other threads:[~2024-05-28 11:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-28 11:10 Dominik Csapak [this message]
2024-07-04 8:58 ` [pve-devel] applied: " Fabian Grünbichler
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