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Fix display issues with RTL control characters in post names, subjects, and filenames.

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This commit is contained in:
Macil Tech 2013-04-02 17:28:04 +08:00
parent 8594294b39
commit 8b14cbb091
4 changed files with 45 additions and 11 deletions
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33
inc/display.php
View File

@ -213,6 +213,39 @@ function truncate($body, $url, $max_lines = false, $max_chars = false) {
return $body;
}
function bidi_cleanup($str){
# Closes all embedded RTL and LTR unicode formatting blocks in a string so that
# it can be used inside another without controlling its direction.
# More info: http://www.iamcal.com/understanding-bidirectional-text/
#
# LRE - U+202A - 0xE2 0x80 0xAA
# RLE - U+202B - 0xE2 0x80 0xAB
# LRO - U+202D - 0xE2 0x80 0xAD
# RLO - U+202E - 0xE2 0x80 0xAE
#
# PDF - U+202C - 0xE2 0x80 0xAC
#
$explicits = '\xE2\x80\xAA|\xE2\x80\xAB|\xE2\x80\xAD|\xE2\x80\xAE';
$pdf = '\xE2\x80\xAC';
$stack = 0;
$str = preg_replace_callback("!(?<explicits>$explicits)|(?<pdf>$pdf)!", function($match) use (&$stack) {
if (isset($match['explicits']) && $match['explicits']) {
$stack++;
} else {
if ($stack)
$stack--;
else
return '';
}
return $match[0];
}, $str);
for ($i=0; $i<$stack; $i++){
$str .= "\xE2\x80\xAC";
}
return $str;
}
function secure_link_confirm($text, $title, $confirm_message, $href) {
global $config;

1
inc/lib/Twig/Extensions/Extension/Tinyboard.php
View File

@ -25,6 +25,7 @@ class Twig_Extensions_Extension_Tinyboard extends Twig_Extension
'until' => new Twig_Filter_Function('until'),
'split' => new Twig_Filter_Function('twig_split_filter'),
'push' => new Twig_Filter_Function('twig_push_filter'),
'bidi_cleanup' => new Twig_Filter_Function('bidi_cleanup'),
'addslashes' => new Twig_Filter_Function('addslashes')
);
}

8
templates/post_reply.html
View File

@ -7,14 +7,14 @@
<label for="delete_{{ post.id }}">
{% if post.subject|length > 0 %}
{# show subject #}
<span class="subject">{{ post.subject }}</span>
<span class="subject">{{ post.subject|bidi_cleanup }}</span>
{% endif %}
{% if post.email|length > 0 %}
{# start email #}
<a class="email" href="mailto:{{ post.email }}">
{% endif %}
{% set capcode = post.capcode|capcode %}
<span {% if capcode.name %}style="{{ capcode.name }}" {% endif %}class="name">{{ post.name }}</span>
<span {% if capcode.name %}style="{{ capcode.name }}" {% endif %}class="name">{{ post.name|bidi_cleanup }}</span>
{% if post.trip|length > 0 %}
<span {% if capcode.trip %}style="{{ capcode.trip }}" {% endif %}class="trip">{{ post.trip }}</span>
{% endif %}
@ -66,9 +66,9 @@
{% if config.show_filename and post.filename %}
,
{% if post.filename|length > config.max_filename_display %}
<span title="{{ post.filename }}">{{ post.filename|truncate(config.max_filename_display) }}</span>
<span class="postfilename" title="{{ post.filename|bidi_cleanup }}">{{ post.filename|truncate(config.max_filename_display)|bidi_cleanup }}</span>
{% else %}
{{ post.filename }}
<span class="postfilename">{{ post.filename|bidi_cleanup }}</span>
{% endif %}
{% endif %}
)

14
templates/post_thread.html
View File

@ -22,11 +22,11 @@
{% endif %}
{% if config.show_filename and post.filename %}
,
{% if post.filename|length > config.max_filename_display %}
<span title="{{ post.filename }}">{{ post.filename|truncate(config.max_filename_display) }}</span>
{% else %}
{{ post.filename }}
{% endif %}
{% if post.filename|length > config.max_filename_display %}
<span class="postfilename" title="{{ post.filename|bidi_cleanup }}">{{ post.filename|truncate(config.max_filename_display)|bidi_cleanup }}</span>
{% else %}
<span class="postfilename">{{ post.filename|bidi_cleanup }}</span>
{% endif %}
{% endif %}
)
</span></p>
@ -50,14 +50,14 @@
<label for="delete_{{ post.id }}">
{% if post.subject|length > 0 %}
{# show subject #}
<span class="subject">{{ post.subject }}</span>
<span class="subject">{{ post.subject|bidi_cleanup }}</span>
{% endif %}
{% if post.email|length > 0 %}
{# start email #}
<a class="email" href="mailto:{{ post.email }}">
{% endif %}
{% set capcode = post.capcode|capcode %}
<span {% if capcode.name %}style="{{ capcode.name }}" {% endif %}class="name">{{ post.name }}</span>
<span {% if capcode.name %}style="{{ capcode.name }}" {% endif %}class="name">{{ post.name|bidi_cleanup }}</span>
{% if post.trip|length > 0 %}
<span {% if capcode.trip %}style="{{ capcode.trip }}" {% endif %}class="trip">{{ post.trip }}</span>
{% endif %}