remove autoload section in composer.json

[github/wallabag/wallabag.git] / inc / 3rdparty / htmlpurifier / HTMLPurifier / AttrValidator.php

<?php\r
\r
/**\r
 * Validates the attributes of a token. Doesn't manage required attributes\r
 * very well. The only reason we factored this out was because RemoveForeignElements\r
 * also needed it besides ValidateAttributes.\r
 */\r
class HTMLPurifier_AttrValidator\r
{\r
\r
    /**\r
     * Validates the attributes of a token, mutating it as necessary.\r
     * that has valid tokens\r
     * @param HTMLPurifier_Token $token Token to validate.\r
     * @param HTMLPurifier_Config $config Instance of HTMLPurifier_Config\r
     * @param HTMLPurifier_Context $context Instance of HTMLPurifier_Context\r
     */\r
    public function validateToken($token, $config, $context)\r
    {\r
        $definition = $config->getHTMLDefinition();\r
        $e =& $context->get('ErrorCollector', true);\r
\r
        // initialize IDAccumulator if necessary\r
        $ok =& $context->get('IDAccumulator', true);\r
        if (!$ok) {\r
            $id_accumulator = HTMLPurifier_IDAccumulator::build($config, $context);\r
            $context->register('IDAccumulator', $id_accumulator);\r
        }\r
\r
        // initialize CurrentToken if necessary\r
        $current_token =& $context->get('CurrentToken', true);\r
        if (!$current_token) {\r
            $context->register('CurrentToken', $token);\r
        }\r
\r
        if (!$token instanceof HTMLPurifier_Token_Start &&\r
            !$token instanceof HTMLPurifier_Token_Empty\r
        ) {\r
            return;\r
        }\r
\r
        // create alias to global definition array, see also $defs\r
        // DEFINITION CALL\r
        $d_defs = $definition->info_global_attr;\r
\r
        // don't update token until the very end, to ensure an atomic update\r
        $attr = $token->attr;\r
\r
        // do global transformations (pre)\r
        // nothing currently utilizes this\r
        foreach ($definition->info_attr_transform_pre as $transform) {\r
            $attr = $transform->transform($o = $attr, $config, $context);\r
            if ($e) {\r
                if ($attr != $o) {\r
                    $e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);\r
                }\r
            }\r
        }\r
\r
        // do local transformations only applicable to this element (pre)\r
        // ex. <p align="right"> to <p style="text-align:right;">\r
        foreach ($definition->info[$token->name]->attr_transform_pre as $transform) {\r
            $attr = $transform->transform($o = $attr, $config, $context);\r
            if ($e) {\r
                if ($attr != $o) {\r
                    $e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);\r
                }\r
            }\r
        }\r
\r
        // create alias to this element's attribute definition array, see\r
        // also $d_defs (global attribute definition array)\r
        // DEFINITION CALL\r
        $defs = $definition->info[$token->name]->attr;\r
\r
        $attr_key = false;\r
        $context->register('CurrentAttr', $attr_key);\r
\r
        // iterate through all the attribute keypairs\r
        // Watch out for name collisions: $key has previously been used\r
        foreach ($attr as $attr_key => $value) {\r
\r
            // call the definition\r
            if (isset($defs[$attr_key])) {\r
                // there is a local definition defined\r
                if ($defs[$attr_key] === false) {\r
                    // We've explicitly been told not to allow this element.\r
                    // This is usually when there's a global definition\r
                    // that must be overridden.\r
                    // Theoretically speaking, we could have a\r
                    // AttrDef_DenyAll, but this is faster!\r
                    $result = false;\r
                } else {\r
                    // validate according to the element's definition\r
                    $result = $defs[$attr_key]->validate(\r
                        $value,\r
                        $config,\r
                        $context\r
                    );\r
                }\r
            } elseif (isset($d_defs[$attr_key])) {\r
                // there is a global definition defined, validate according\r
                // to the global definition\r
                $result = $d_defs[$attr_key]->validate(\r
                    $value,\r
                    $config,\r
                    $context\r
                );\r
            } else {\r
                // system never heard of the attribute? DELETE!\r
                $result = false;\r
            }\r
\r
            // put the results into effect\r
            if ($result === false || $result === null) {\r
                // this is a generic error message that should replaced\r
                // with more specific ones when possible\r
                if ($e) {\r
                    $e->send(E_ERROR, 'AttrValidator: Attribute removed');\r
                }\r
\r
                // remove the attribute\r
                unset($attr[$attr_key]);\r
            } elseif (is_string($result)) {\r
                // generally, if a substitution is happening, there\r
                // was some sort of implicit correction going on. We'll\r
                // delegate it to the attribute classes to say exactly what.\r
\r
                // simple substitution\r
                $attr[$attr_key] = $result;\r
            } else {\r
                // nothing happens\r
            }\r
\r
            // we'd also want slightly more complicated substitution\r
            // involving an array as the return value,\r
            // although we're not sure how colliding attributes would\r
            // resolve (certain ones would be completely overriden,\r
            // others would prepend themselves).\r
        }\r
\r
        $context->destroy('CurrentAttr');\r
\r
        // post transforms\r
\r
        // global (error reporting untested)\r
        foreach ($definition->info_attr_transform_post as $transform) {\r
            $attr = $transform->transform($o = $attr, $config, $context);\r
            if ($e) {\r
                if ($attr != $o) {\r
                    $e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);\r
                }\r
            }\r
        }\r
\r
        // local (error reporting untested)\r
        foreach ($definition->info[$token->name]->attr_transform_post as $transform) {\r
            $attr = $transform->transform($o = $attr, $config, $context);\r
            if ($e) {\r
                if ($attr != $o) {\r
                    $e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);\r
                }\r
            }\r
        }\r
\r
        $token->attr = $attr;\r
\r
        // destroy CurrentToken if we made it ourselves\r
        if (!$current_token) {\r
            $context->destroy('CurrentToken');\r
        }\r
\r
    }\r
\r
\r
}\r
\r
// vim: et sw=4 sts=4\r