Mercurial > hg > nginx-quic
view docs/xsls/changes.xsls @ 6271:22ee99422329
HTTP/2: reject self-dependent streams.
Per RFC7540, a stream cannot depend on itself.
Previously, this requirement was enforced on PRIORITY frames, but not on
HEADERS frames and due to the implementation details nginx worker would
crash (stack overflow) while opening self-dependent stream.
Found with afl-fuzz.
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
author | Piotr Sikora <piotrsikora@google.com> |
---|---|
date | Thu, 01 Oct 2015 20:25:55 -0700 |
parents | 76bc29f06168 |
children | 529f10f7757c |
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X:stylesheet { X:output method="text"; X:param lang="'en'"; X:param configuration="'../xml/change_log_conf.xml'"; X:var conf = "document($configuration)/configuration"; X:var start = "$conf/start"; X:var indent = "$conf/indent"; X:var max = "$conf/length"; X:var br = {<br>} X:template = "/" { !! "change_log"; } X:template = "change_log" { !! "changes"; } X:template = "changes" { X:text { } !{substring(concat($conf/changes[@lang=$lang]/title, //change_log/@title, ' ', @ver, ' '), 1, $conf/changes[@lang=$lang]/length)} X:if "$lang='ru'" { !{@date} } X:if "$lang='en'" { !{substring(@date, 1, 2)} !{$conf/changes[@lang=$lang]/month[number(substring(current()/@date, 4, 2))]} !{substring(@date, 7, 4)} } X:text { } !! "change"; X:text { } } X:template = "change" { X:var prefix = "$conf/changes[@lang=$lang]/*[local-name(.)=current()/@type]" X:var postfix = { X:if "$prefix" { X:text {: } } } !! "para[@lang=$lang]" (prefix = "concat($start, $prefix, $postfix)"); } X:template para(prefix) = "para" { X:var text = { !!; } X:text { } !wrap(text = "normalize-space($text)", prefix = { X:if "position() = 1" { !{$prefix} } else { !{$indent} } }) } X:template wrap(text, prefix) { X:if "$text" { X:var offset = { X:choose { X:when "starts-with($text, concat($br, ' '))" { !{string-length($br) + 2} } X:when "starts-with($text, $br)" { !{string-length($br) + 1} } X:otherwise { 1 } } } X:var length = { !length(text = "substring($text, $offset)", prefix = "string-length($prefix)", length = "$max") } !{$prefix} !{normalize-space(translate(substring($text, $offset, $length), ' ', ' '))} X:text { } !wrap(text = "substring($text, $length + $offset)", prefix = "$indent") } } X:template length(text, prefix, length) { X:var break = "substring-before(substring($text, 1, $length - $prefix + string-length($br)), $br)" X:choose { X:when "$break" { !{string-length($break)} } X:when "$length = 0" { !{$max - $prefix} } X:when "string-length($text) + $prefix <= $length" { !{$length - $prefix} } X:when "substring($text, $length - $prefix + 1, 1) = ' '" { !{$length - $prefix + 1} } X:otherwise { !length(text = "$text", prefix = "$prefix", length = "$length - 1") } } } X:template = "at" {@} X:template = "br" { !{$br} } X:template = "nobr" { !{translate(., ' ', ' ')} } }