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| author | Nicolas Lœuillet <nicolas@loeuillet.org> | 2014-02-21 15:57:10 +0100 |
|---|---|---|
| committer | Nicolas Lœuillet <nicolas@loeuillet.org> | 2014-02-21 15:57:10 +0100 |
| commit | 99679d06884120c57f43b44e55e03595f1f87bed (patch) | |
| tree | a3f2a1aa1afdaeca1386d0c6e8a75344fd2241fb /inc/3rdparty/htmlpurifier/HTMLPurifier/ChildDef/Required.php | |
| parent | 655214ab30ee84884dc408488b85586f36263fcb (diff) | |
| parent | d3b47e94705e17b3ba3529cbb1dc6efe69c5d2b7 (diff) | |
| download | wallabag-99679d06884120c57f43b44e55e03595f1f87bed.tar.gz wallabag-99679d06884120c57f43b44e55e03595f1f87bed.tar.zst wallabag-99679d06884120c57f43b44e55e03595f1f87bed.zip | |
Merge pull request #481 from wallabag/dev1.5.2
1.5.2
Diffstat (limited to 'inc/3rdparty/htmlpurifier/HTMLPurifier/ChildDef/Required.php')
| -rw-r--r-- | inc/3rdparty/htmlpurifier/HTMLPurifier/ChildDef/Required.php | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/ChildDef/Required.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/ChildDef/Required.php new file mode 100644 index 00000000..f6b8e8a2 --- /dev/null +++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/ChildDef/Required.php | |||
| @@ -0,0 +1,118 @@ | |||
| 1 | <?php | ||
| 2 | |||
| 3 | /** | ||
| 4 | * Definition that allows a set of elements, but disallows empty children. | ||
| 5 | */ | ||
| 6 | class HTMLPurifier_ChildDef_Required extends HTMLPurifier_ChildDef | ||
| 7 | { | ||
| 8 | /** | ||
| 9 | * Lookup table of allowed elements. | ||
| 10 | * @type array | ||
| 11 | */ | ||
| 12 | public $elements = array(); | ||
| 13 | |||
| 14 | /** | ||
| 15 | * Whether or not the last passed node was all whitespace. | ||
| 16 | * @type bool | ||
| 17 | */ | ||
| 18 | protected $whitespace = false; | ||
| 19 | |||
| 20 | /** | ||
| 21 | * @param array|string $elements List of allowed element names (lowercase). | ||
| 22 | */ | ||
| 23 | public function __construct($elements) | ||
| 24 | { | ||
| 25 | if (is_string($elements)) { | ||
| 26 | $elements = str_replace(' ', '', $elements); | ||
| 27 | $elements = explode('|', $elements); | ||
| 28 | } | ||
| 29 | $keys = array_keys($elements); | ||
| 30 | if ($keys == array_keys($keys)) { | ||
| 31 | $elements = array_flip($elements); | ||
| 32 | foreach ($elements as $i => $x) { | ||
| 33 | $elements[$i] = true; | ||
| 34 | if (empty($i)) { | ||
| 35 | unset($elements[$i]); | ||
| 36 | } // remove blank | ||
| 37 | } | ||
| 38 | } | ||
| 39 | $this->elements = $elements; | ||
| 40 | } | ||
| 41 | |||
| 42 | /** | ||
| 43 | * @type bool | ||
| 44 | */ | ||
| 45 | public $allow_empty = false; | ||
| 46 | |||
| 47 | /** | ||
| 48 | * @type string | ||
| 49 | */ | ||
| 50 | public $type = 'required'; | ||
| 51 | |||
| 52 | /** | ||
| 53 | * @param array $children | ||
| 54 | * @param HTMLPurifier_Config $config | ||
| 55 | * @param HTMLPurifier_Context $context | ||
| 56 | * @return array | ||
| 57 | */ | ||
| 58 | public function validateChildren($children, $config, $context) | ||
| 59 | { | ||
| 60 | // Flag for subclasses | ||
| 61 | $this->whitespace = false; | ||
| 62 | |||
| 63 | // if there are no tokens, delete parent node | ||
| 64 | if (empty($children)) { | ||
| 65 | return false; | ||
| 66 | } | ||
| 67 | |||
| 68 | // the new set of children | ||
| 69 | $result = array(); | ||
| 70 | |||
| 71 | // whether or not parsed character data is allowed | ||
| 72 | // this controls whether or not we silently drop a tag | ||
| 73 | // or generate escaped HTML from it | ||
| 74 | $pcdata_allowed = isset($this->elements['#PCDATA']); | ||
| 75 | |||
| 76 | // a little sanity check to make sure it's not ALL whitespace | ||
| 77 | $all_whitespace = true; | ||
| 78 | |||
| 79 | $stack = array_reverse($children); | ||
| 80 | while (!empty($stack)) { | ||
| 81 | $node = array_pop($stack); | ||
| 82 | if (!empty($node->is_whitespace)) { | ||
| 83 | $result[] = $node; | ||
| 84 | continue; | ||
| 85 | } | ||
| 86 | $all_whitespace = false; // phew, we're not talking about whitespace | ||
| 87 | |||
| 88 | if (!isset($this->elements[$node->name])) { | ||
| 89 | // special case text | ||
| 90 | // XXX One of these ought to be redundant or something | ||
| 91 | if ($pcdata_allowed && $node instanceof HTMLPurifier_Node_Text) { | ||
| 92 | $result[] = $node; | ||
| 93 | continue; | ||
| 94 | } | ||
| 95 | // spill the child contents in | ||
| 96 | // ToDo: Make configurable | ||
| 97 | if ($node instanceof HTMLPurifier_Node_Element) { | ||
| 98 | for ($i = count($node->children) - 1; $i >= 0; $i--) { | ||
| 99 | $stack[] = $node->children[$i]; | ||
| 100 | } | ||
| 101 | continue; | ||
| 102 | } | ||
| 103 | continue; | ||
| 104 | } | ||
| 105 | $result[] = $node; | ||
| 106 | } | ||
| 107 | if (empty($result)) { | ||
| 108 | return false; | ||
| 109 | } | ||
| 110 | if ($all_whitespace) { | ||
| 111 | $this->whitespace = true; | ||
| 112 | return false; | ||
| 113 | } | ||
| 114 | return $result; | ||
| 115 | } | ||
| 116 | } | ||
| 117 | |||
| 118 | // vim: et sw=4 sts=4 | ||