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* CalDAV/CardDAV: fix encoding of control chars stalling iOS sync

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eg. \xb is not allowed in XML and caused iOS sync to stall, as it's XML parser fails
use htmlspecialchars option ENT_XML1|ENT_DISALLOWED (PHP 5.4+) to ensure proper XML encoding
This commit is contained in:
Ralf Becker 2017-11-10 15:40:49 +01:00
parent 5b8edcfdb1
commit 3055190ea7
1 changed files with 6 additions and 6 deletions
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12
api/src/WebDAV/Server.php
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@ -1003,7 +1003,7 @@ class HTTP_WebDAV_Server
} elseif (isset($prop['raw'])) {
$val = $this->_prop_encode('<![CDATA['.$prop['val'].']]>');
} else {
$val = $this->_prop_encode(htmlspecialchars($prop['val'], ENT_NOQUOTES, 'utf-8'));
$val = $this->_prop_encode(htmlspecialchars($prop['val'], ENT_NOQUOTES|ENT_XML1|ENT_DISALLOWED, 'utf-8'));
}
echo ' <'.($this->crrnd?'':'D:')."$prop[name]$ns_defs>$val".
'</'.($this->crrnd?'':'D:')."$prop[name]>\n";
@ -1049,7 +1049,7 @@ class HTTP_WebDAV_Server
{
foreach($subprop['val'] as $attr => $val)
{
$vals .= ' '.$attr.'="'.htmlspecialchars($val, ENT_NOQUOTES, 'utf-8').'"';
$vals .= ' '.$attr.'="'.htmlspecialchars($val, ENT_NOQUOTES|ENT_XML1|ENT_DISALLOWED, 'utf-8').'"';
}
$vals .= '/>';
}
@ -1061,7 +1061,7 @@ class HTTP_WebDAV_Server
$vals .= '<![CDATA['.$subprop['val'].']]>';
} else {
if($subprop['name'] == 'href') $subprop['val'] = $this->_urlencode($subprop['val']);
$vals .= htmlspecialchars($subprop['val'], ENT_NOQUOTES, 'utf-8');
$vals .= htmlspecialchars($subprop['val'], ENT_NOQUOTES|ENT_XML1|ENT_DISALLOWED, 'utf-8');
}
$vals .= "</$ns_name$subprop[name]>";
}
@ -1072,7 +1072,7 @@ class HTTP_WebDAV_Server
{
$val = '<![CDATA['.$prop['val'].']]>';
} else {
$val = htmlspecialchars($prop['val'], ENT_NOQUOTES, 'utf-8');
$val = htmlspecialchars($prop['val'], ENT_NOQUOTES|ENT_XML1|ENT_DISALLOWED, 'utf-8');
}
$val = $this->_prop_encode($val);
// properties from namespaces != "DAV:" or without any namespace
@ -1199,7 +1199,7 @@ class HTTP_WebDAV_Server
if ($responsedescr) {
echo ' <'.($this->crrnd?'':'D:')."responsedescription>".
$this->_prop_encode(htmlspecialchars($responsedescr, ENT_NOQUOTES, 'utf-8')).
$this->_prop_encode(htmlspecialchars($responsedescr, ENT_NOQUOTES|ENT_XML1|ENT_DISALLOWED, 'utf-8')).
'</'.($this->crrnd?'':'D:')."responsedescription>\n";
}
@ -2794,7 +2794,7 @@ class HTTP_WebDAV_Server
foreach($subprop as $attr => $val)
{
$vals .= ' '.$attr.'="'.htmlspecialchars($val, ENT_NOQUOTES, 'utf-8').'"';
$vals .= ' '.$attr.'="'.htmlspecialchars($val, ENT_NOQUOTES|ENT_XML1|ENT_DISALLOWED, 'utf-8').'"';
}
$ret .= '<'.($prop['ns'] == $ns ? ($this->crrnd ? '' : $ns_hash[$ns].':') : $ns_hash[$prop['ns']].':').$prop['name'].