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https://github.com/ezyang/htmlpurifier.git
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d765628d24
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1580 48356398-32a2-884e-a903-53898d9a118a
90 lines
3.2 KiB
PHP
90 lines
3.2 KiB
PHP
<?php
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/**
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* Takes an array of keys to strings, probably generated by
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* HTMLPurifier_ConfigSchema_StringHashParser
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*/
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class HTMLPurifier_ConfigSchema_StringHashAdapter
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{
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/**
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* Takes a string hash and calls the appropriate functions in $schema
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* based on its values.
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*/
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public function adapt($hash, $schema) {
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if (! $hash instanceof HTMLPurifier_ConfigSchema_StringHash) {
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$hash = new HTMLPurifier_ConfigSchema_StringHash($hash);
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}
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if (!isset($hash['ID'])) {
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trigger_error('Missing key ID in string hash');
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return;
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}
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// Check namespace:
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if (strpos($hash['ID'], '.') === false) {
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// This will cause problems if we decide to support nested
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// namespaces, but for now it's ok.
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$schema->addNamespace($hash->offsetGet('ID'), $hash->offsetGet('DESCRIPTION'));
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$this->_findUnused($hash);
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return;
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}
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list($ns, $directive) = explode('.', $hash->offsetGet('ID'), 2);
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if (isset($hash['TYPE'], $hash['DEFAULT'], $hash['DESCRIPTION'])) {
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$type = $hash->offsetGet('TYPE');
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$raw_default = $hash->offsetGet('DEFAULT');
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$default = eval("return $raw_default;");
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$description = $hash->offsetGet('DESCRIPTION');
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$schema->add($ns, $directive, $default, $type, $description);
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}
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if (isset($hash['ALLOWED'])) {
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$raw_allowed = $hash->offsetGet('ALLOWED');
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$allowed = eval("return array($raw_allowed);");
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$schema->addAllowedValues($ns, $directive, $allowed);
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}
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// This must be after ALLOWED
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if (isset($hash['VALUE-ALIASES'])) {
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$raw_value_aliases = $hash->offsetGet('VALUE-ALIASES');
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$value_aliases = eval("return array($raw_value_aliases);");
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$schema->addValueAliases($ns, $directive, $value_aliases);
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}
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if (isset($hash['ALIASES'])) {
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$raw_aliases = trim($hash->offsetGet('ALIASES'));
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$aliases = preg_split('/\s*,\s*/', $raw_aliases);
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foreach ($aliases as $alias) {
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list($alias_ns, $alias_directive) = explode('.', $alias, 2);
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$schema->addAlias($alias_ns, $alias_directive, $ns, $directive);
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}
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}
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// We don't use these yet, but they're specified
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if (isset($hash['VERSION'])) $hash->offsetGet('VERSION');
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if (isset($hash['DEPRECATED-USE'])) $hash->offsetGet('DEPRECATED-USE');
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if (isset($hash['DEPRECATED-VERSION'])) $hash->offsetGet('DEPRECATED-VERSION');
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$this->_findUnused($hash);
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}
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/**
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* Triggers errors for any unused keys passed in the hash; such keys
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* may indicate typos, missing values, etc.
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* @param $hash Instance of ConfigSchema_StringHash to check.
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*/
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protected function _findUnused($hash) {
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$accessed = $hash->getAccessed();
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foreach ($hash as $k => $v) {
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if (!isset($accessed[$k])) {
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trigger_error("String hash key '$k' not used by adapter", E_USER_NOTICE);
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}
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}
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}
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}
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