X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FUtil%2FXML.php;h=963161fbffb2add74f70d8874380a795800e6a1e;hb=8dc0ab9bb3379fec0be442160db1ae29ef8cea9d;hp=8dc540324368b23af4d917c9e05956de333ade1e;hpb=bcd896c60431e43a78b29e82d42122e5fe31720e;p=friendica.git diff --git a/src/Util/XML.php b/src/Util/XML.php index 8dc5403243..963161fbff 100644 --- a/src/Util/XML.php +++ b/src/Util/XML.php @@ -1,19 +1,38 @@ . + * */ + namespace Friendica\Util; use DOMXPath; +use Friendica\Core\Logger; +use Friendica\Core\System; use SimpleXMLElement; /** - * @brief This class contain methods to work with XML data + * This class contain methods to work with XML data */ class XML { /** - * @brief Creates an XML structure out of a given array + * Creates an XML structure out of a given array * * @param array $array The array of the XML structure that will be generated * @param object $xml The createdXML will be returned by reference @@ -35,7 +54,7 @@ class XML $root = new SimpleXMLElement("<".$key."/>"); self::fromArray($value, $root, $remove_header, $namespaces, false); } else { - $root = new SimpleXMLElement("<".$key.">".xmlify($value).""); + $root = new SimpleXMLElement("<".$key.">".self::escape($value).""); } $dom = dom_import_simplexml($root)->ownerDocument; @@ -103,7 +122,7 @@ class XML } if (!is_array($value)) { - $element = $xml->addChild($key, xmlify($value), $namespace); + $element = $xml->addChild($key, self::escape($value), $namespace); } elseif (is_array($value)) { $element = $xml->addChild($key, null, $namespace); self::fromArray($value, $element, $remove_header, $namespaces, false); @@ -112,7 +131,7 @@ class XML } /** - * @brief Copies an XML object + * Copies an XML object * * @param object $source The XML source * @param object $target The XML target @@ -122,7 +141,7 @@ class XML public static function copy(&$source, &$target, $elementname) { if (count($source->children()) == 0) { - $target->addChild($elementname, xmlify($source)); + $target->addChild($elementname, self::escape($source)); } else { $child = $target->addChild($elementname); foreach ($source->children() as $childfield => $childentry) { @@ -132,45 +151,45 @@ class XML } /** - * @brief Create an XML element + * Create an XML element * - * @param object $doc XML root - * @param string $element XML element name - * @param string $value XML value - * @param array $attributes array containing the attributes + * @param \DOMDocument $doc XML root + * @param string $element XML element name + * @param string $value XML value + * @param array $attributes array containing the attributes * - * @return object XML element object + * @return \DOMElement XML element object */ - public static function createElement($doc, $element, $value = "", $attributes = []) + public static function createElement(\DOMDocument $doc, $element, $value = "", $attributes = []) { - $element = $doc->createElement($element, xmlify($value)); + $element = $doc->createElement($element, self::escape($value)); foreach ($attributes as $key => $value) { $attribute = $doc->createAttribute($key); - $attribute->value = xmlify($value); + $attribute->value = self::escape($value); $element->appendChild($attribute); } return $element; } /** - * @brief Create an XML and append it to the parent object + * Create an XML and append it to the parent object * - * @param object $doc XML root + * @param \DOMDocument $doc XML root * @param object $parent parent object * @param string $element XML element name * @param string $value XML value * @param array $attributes array containing the attributes * @return void */ - public static function addElement($doc, $parent, $element, $value = "", $attributes = []) + public static function addElement(\DOMDocument $doc, $parent, $element, $value = "", $attributes = []) { $element = self::createElement($doc, $element, $value, $attributes); $parent->appendChild($element); } /** - * @brief Convert an XML document to a normalised, case-corrected array + * Convert an XML document to a normalised, case-corrected array * used by webfinger * * @param object $xml_element The XML document @@ -221,7 +240,7 @@ class XML } /** - * @brief Convert the given XML text to an array in the XML structure. + * Convert the given XML text to an array in the XML structure. * * Xml::toArray() will convert the given XML text to an array in the XML structure. * Link: http://www.bin-co.com/php/scripts/xml2array/ @@ -229,17 +248,18 @@ class XML * (namespaces, lowercase tags, get_attribute default changed, more...) * * Examples: $array = Xml::toArray(file_get_contents('feed.xml')); - * $array = Xml::toArray(file_get_contents('feed.xml', true, 1, 'attribute')); + * $array = Xml::toArray(file_get_contents('feed.xml', true, 1, 'attribute')); * - * @param object $contents The XML text - * @param boolean $namespaces True or false include namespace information - * in the returned array as array elements. - * @param integer $get_attributes 1 or 0. If this is 1 the function will get the attributes as well as the tag values - - * this results in a different array structure in the return value. - * @param string $priority Can be 'tag' or 'attribute'. This will change the way the resulting - * array sturcture. For 'tag', the tags are given more importance. + * @param string $contents The XML text + * @param boolean $namespaces True or false include namespace information + * in the returned array as array elements. + * @param integer $get_attributes 1 or 0. If this is 1 the function will get the attributes as well as the tag values - + * this results in a different array structure in the return value. + * @param string $priority Can be 'tag' or 'attribute'. This will change the way the resulting + * array sturcture. For 'tag', the tags are given more importance. * * @return array The parsed XML in an array form. Use print_r() to see the resulting array structure. + * @throws \Exception */ public static function toArray($contents, $namespaces = true, $get_attributes = 1, $priority = 'attribute') { @@ -248,7 +268,7 @@ class XML } if (!function_exists('xml_parser_create')) { - logger('Xml::toArray: parser function missing'); + Logger::notice('Xml::toArray: parser function missing'); return []; } @@ -263,7 +283,7 @@ class XML } if (! $parser) { - logger('Xml::toArray: xml_parser_create: no resource'); + Logger::notice('Xml::toArray: xml_parser_create: no resource'); return []; } @@ -275,9 +295,9 @@ class XML @xml_parser_free($parser); if (! $xml_values) { - logger('Xml::toArray: libxml: parse error: ' . $contents, LOGGER_DATA); + Logger::debug('Xml::toArray: libxml: parse error: ' . $contents); foreach (libxml_get_errors() as $err) { - logger('libxml: parse: ' . $err->code . " at " . $err->line . ":" . $err->column . " : " . $err->message, LOGGER_DATA); + Logger::debug('libxml: parse: ' . $err->code . " at " . $err->line . ":" . $err->column . " : " . $err->message); } libxml_clear_errors(); return; @@ -285,9 +305,6 @@ class XML //Initializations $xml_array = []; - $parents = []; - $opened_tags = []; - $arr = []; $current = &$xml_array; // Reference @@ -401,13 +418,13 @@ class XML } /** - * @brief Delete a node in a XML object + * Delete a node in a XML object * - * @param object $doc XML document + * @param \DOMDocument $doc XML document * @param string $node Node name * @return void */ - public static function deleteNode(&$doc, $node) + public static function deleteNode(\DOMDocument $doc, $node) { $xpath = new DOMXPath($doc); $list = $xpath->query("//".$node); @@ -416,19 +433,116 @@ class XML } } - public static function parseString($s, $strict = true) + /** + * Parse XML string + * + * @param string $s + * @param boolean $suppress_log + * @return Object + */ + public static function parseString(string $s, bool $suppress_log = false) { - // the "strict" parameter is deactivated libxml_use_internal_errors(true); $x = @simplexml_load_string($s); if (!$x) { - logger('libxml: parse: error: ' . $s, LOGGER_DATA); - foreach (libxml_get_errors() as $err) { - logger('libxml: parse: ' . $err->code." at ".$err->line.":".$err->column." : ".$err->message, LOGGER_DATA); + if (!$suppress_log) { + Logger::error('Error(s) while parsing XML string.', ['callstack' => System::callstack()]); + foreach (libxml_get_errors() as $err) { + Logger::info('libxml error', ['code' => $err->code, 'position' => $err->line . ":" . $err->column, 'message' => $err->message]); + } + Logger::debug('Erroring XML string', ['xml' => $s]); } libxml_clear_errors(); } return $x; } + + public static function getFirstNodeValue(DOMXPath $xpath, $element, $context = null) + { + $result = $xpath->evaluate($element, $context); + if (!is_object($result)) { + return ''; + } + + $first_item = $result->item(0); + if (!is_object($first_item)) { + return ''; + } + + return $first_item->nodeValue; + } + + public static function getFirstAttributes(DOMXPath $xpath, $element, $context = null) + { + $result = @$xpath->query($element, $context); + if (!is_object($result)) { + return false; + } + + $first_item = $result->item(0); + if (!is_object($first_item)) { + return false; + } + + return $first_item->attributes; + } + + public static function getFirstValue($xpath, $search, $context) + { + $result = @$xpath->query($search, $context); + if (!is_object($result)) { + return ''; + } + + $first_item = $result->item(0); + if (!is_object($first_item)) { + return ''; + } + + return $first_item->nodeValue; + } + + /** + * escape text ($str) for XML transport + * + * @param string $str + * @return string Escaped text. + */ + public static function escape($str) + { + $buffer = htmlspecialchars($str, ENT_QUOTES, 'UTF-8'); + $buffer = trim($buffer); + + return $buffer; + } + + /** + * undo an escape + * + * @param string $s xml escaped text + * @return string unescaped text + */ + public static function unescape($s) + { + $ret = htmlspecialchars_decode($s, ENT_QUOTES); + return $ret; + } + + /** + * apply escape() to all values of array $val, recursively + * + * @param array $val + * @return array|string + */ + public static function arrayEscape($val) + { + if (is_bool($val)) { + return $val ? 'true' : 'false'; + } elseif (is_array($val)) { + return array_map('XML::arrayEscape', $val); + } + + return self::escape((string) $val); + } }