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authorChristoph M. Becker <cmbecker69@gmx.de>2020-03-11 13:02:09 +0100
committerChristoph M. Becker <cmbecker69@gmx.de>2020-04-07 13:04:14 +0200
commitefec22b7bedfb1eae2df72b84cf5ad229e0bdc1e (patch)
tree6a7aa5d3d1fec5cbc1dbe0c99c9204df0b5e999e
parent656eac74fa6074aebc087bb73d2e4651f7dc8c9e (diff)
downloadphp-git-efec22b7bedfb1eae2df72b84cf5ad229e0bdc1e.tar.gz
Fix #78221: DOMNode::normalize() doesn't remove empty text nodes
If a text node is not followed by another text node, we remove it, if its textContent is empty.
-rw-r--r--NEWS4
-rw-r--r--ext/dom/php_dom.c8
-rw-r--r--ext/dom/tests/bug78221.phpt17
3 files changed, 29 insertions, 0 deletions
diff --git a/NEWS b/NEWS
index 87e279e02d..ff1aa47d3b 100644
--- a/NEWS
+++ b/NEWS
@@ -6,6 +6,10 @@ PHP NEWS
. Fixed bug #79434 (PHP 7.3 and PHP-7.4 crash with NULL-pointer dereference
on !CS constant). (Nikita)
+- DOM:
+ . Fixed bug #78221 (DOMNode::normalize() doesn't remove empty text nodes).
+ (cmb)
+
- MBString:
. Fixed bug #79441 (Segfault in mb_chr() if internal encoding is unsupported).
(Girgias)
diff --git a/ext/dom/php_dom.c b/ext/dom/php_dom.c
index 72ae3c3ffe..ed67f047fa 100644
--- a/ext/dom/php_dom.c
+++ b/ext/dom/php_dom.c
@@ -1383,6 +1383,14 @@ void dom_normalize (xmlNodePtr nodep)
break;
}
}
+ strContent = xmlNodeGetContent(child);
+ if (*strContent == '\0') {
+ nextp = child->next;
+ xmlUnlinkNode(child);
+ php_libxml_node_free_resource(child);
+ child = nextp;
+ continue;
+ }
break;
case XML_ELEMENT_NODE:
dom_normalize (child);
diff --git a/ext/dom/tests/bug78221.phpt b/ext/dom/tests/bug78221.phpt
new file mode 100644
index 0000000000..a9bf50d98e
--- /dev/null
+++ b/ext/dom/tests/bug78221.phpt
@@ -0,0 +1,17 @@
+--TEST--
+Bug #78221 (DOMNode::normalize() doesn't remove empty text nodes)
+--SKIPIF--
+<?php
+if (!extension_loaded('dom')) die('skip dom extension not available');
+?>
+--FILE--
+<?php
+$doc = new DOMDocument();
+$doc->loadHTML('<p id=x>foo</p>');
+$p = $doc->getElementById('x');
+$p->childNodes[0]->textContent = '';
+$p->normalize();
+var_dump($p->childNodes->length);
+?>
+--EXPECT--
+int(0)