:arrow_up: Update HTML Purifier library.

Updated HTML Purifier from 4.6.0 to 4.9.2 with better PHP7 compatibility.
Used composer to manage this library.

1 files changed, 0 insertions, 248 deletions

diff --git a/library/HTMLPurifier/ConfigSchema/Validator.php b/library/HTMLPurifier/ConfigSchema/Validator.php
deleted file mode 100644
index fb3127788..000000000
--- a/library/HTMLPurifier/ConfigSchema/Validator.php
+++ /dev/null
@@ -1,248 +0,0 @@
-<?php
-
-/**
- * Performs validations on HTMLPurifier_ConfigSchema_Interchange
- *
- * @note If you see '// handled by InterchangeBuilder', that means a
- *       design decision in that class would prevent this validation from
- *       ever being necessary. We have them anyway, however, for
- *       redundancy.
- */
-class HTMLPurifier_ConfigSchema_Validator
-{
-
-    /**
-     * @type HTMLPurifier_ConfigSchema_Interchange
-     */
-    protected $interchange;
-
-    /**
-     * @type array
-     */
-    protected $aliases;
-
-    /**
-     * Context-stack to provide easy to read error messages.
-     * @type array
-     */
-    protected $context = array();
-
-    /**
-     * to test default's type.
-     * @type HTMLPurifier_VarParser
-     */
-    protected $parser;
-
-    public function __construct()
-    {
-        $this->parser = new HTMLPurifier_VarParser();
-    }
-
-    /**
-     * Validates a fully-formed interchange object.
-     * @param HTMLPurifier_ConfigSchema_Interchange $interchange
-     * @return bool
-     */
-    public function validate($interchange)
-    {
-        $this->interchange = $interchange;
-        $this->aliases = array();
-        // PHP is a bit lax with integer <=> string conversions in
-        // arrays, so we don't use the identical !== comparison
-        foreach ($interchange->directives as $i => $directive) {
-            $id = $directive->id->toString();
-            if ($i != $id) {
-                $this->error(false, "Integrity violation: key '$i' does not match internal id '$id'");
-            }
-            $this->validateDirective($directive);
-        }
-        return true;
-    }
-
-    /**
-     * Validates a HTMLPurifier_ConfigSchema_Interchange_Id object.
-     * @param HTMLPurifier_ConfigSchema_Interchange_Id $id
-     */
-    public function validateId($id)
-    {
-        $id_string = $id->toString();
-        $this->context[] = "id '$id_string'";
-        if (!$id instanceof HTMLPurifier_ConfigSchema_Interchange_Id) {
-            // handled by InterchangeBuilder
-            $this->error(false, 'is not an instance of HTMLPurifier_ConfigSchema_Interchange_Id');
-        }
-        // keys are now unconstrained (we might want to narrow down to A-Za-z0-9.)
-        // we probably should check that it has at least one namespace
-        $this->with($id, 'key')
-            ->assertNotEmpty()
-            ->assertIsString(); // implicit assertIsString handled by InterchangeBuilder
-        array_pop($this->context);
-    }
-
-    /**
-     * Validates a HTMLPurifier_ConfigSchema_Interchange_Directive object.
-     * @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
-     */
-    public function validateDirective($d)
-    {
-        $id = $d->id->toString();
-        $this->context[] = "directive '$id'";
-        $this->validateId($d->id);
-
-        $this->with($d, 'description')
-            ->assertNotEmpty();
-
-        // BEGIN - handled by InterchangeBuilder
-        $this->with($d, 'type')
-            ->assertNotEmpty();
-        $this->with($d, 'typeAllowsNull')
-            ->assertIsBool();
-        try {
-            // This also tests validity of $d->type
-            $this->parser->parse($d->default, $d->type, $d->typeAllowsNull);
-        } catch (HTMLPurifier_VarParserException $e) {
-            $this->error('default', 'had error: ' . $e->getMessage());
-        }
-        // END - handled by InterchangeBuilder
-
-        if (!is_null($d->allowed) || !empty($d->valueAliases)) {
-            // allowed and valueAliases require that we be dealing with
-            // strings, so check for that early.
-            $d_int = HTMLPurifier_VarParser::$types[$d->type];
-            if (!isset(HTMLPurifier_VarParser::$stringTypes[$d_int])) {
-                $this->error('type', 'must be a string type when used with allowed or value aliases');
-            }
-        }
-
-        $this->validateDirectiveAllowed($d);
-        $this->validateDirectiveValueAliases($d);
-        $this->validateDirectiveAliases($d);
-
-        array_pop($this->context);
-    }
-
-    /**
-     * Extra validation if $allowed member variable of
-     * HTMLPurifier_ConfigSchema_Interchange_Directive is defined.
-     * @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
-     */
-    public function validateDirectiveAllowed($d)
-    {
-        if (is_null($d->allowed)) {
-            return;
-        }
-        $this->with($d, 'allowed')
-            ->assertNotEmpty()
-            ->assertIsLookup(); // handled by InterchangeBuilder
-        if (is_string($d->default) && !isset($d->allowed[$d->default])) {
-            $this->error('default', 'must be an allowed value');
-        }
-        $this->context[] = 'allowed';
-        foreach ($d->allowed as $val => $x) {
-            if (!is_string($val)) {
-                $this->error("value $val", 'must be a string');
-            }
-        }
-        array_pop($this->context);
-    }
-
-    /**
-     * Extra validation if $valueAliases member variable of
-     * HTMLPurifier_ConfigSchema_Interchange_Directive is defined.
-     * @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
-     */
-    public function validateDirectiveValueAliases($d)
-    {
-        if (is_null($d->valueAliases)) {
-            return;
-        }
-        $this->with($d, 'valueAliases')
-            ->assertIsArray(); // handled by InterchangeBuilder
-        $this->context[] = 'valueAliases';
-        foreach ($d->valueAliases as $alias => $real) {
-            if (!is_string($alias)) {
-                $this->error("alias $alias", 'must be a string');
-            }
-            if (!is_string($real)) {
-                $this->error("alias target $real from alias '$alias'", 'must be a string');
-            }
-            if ($alias === $real) {
-                $this->error("alias '$alias'", "must not be an alias to itself");
-            }
-        }
-        if (!is_null($d->allowed)) {
-            foreach ($d->valueAliases as $alias => $real) {
-                if (isset($d->allowed[$alias])) {
-                    $this->error("alias '$alias'", 'must not be an allowed value');
-                } elseif (!isset($d->allowed[$real])) {
-                    $this->error("alias '$alias'", 'must be an alias to an allowed value');
-                }
-            }
-        }
-        array_pop($this->context);
-    }
-
-    /**
-     * Extra validation if $aliases member variable of
-     * HTMLPurifier_ConfigSchema_Interchange_Directive is defined.
-     * @param HTMLPurifier_ConfigSchema_Interchange_Directive $d
-     */
-    public function validateDirectiveAliases($d)
-    {
-        $this->with($d, 'aliases')
-            ->assertIsArray(); // handled by InterchangeBuilder
-        $this->context[] = 'aliases';
-        foreach ($d->aliases as $alias) {
-            $this->validateId($alias);
-            $s = $alias->toString();
-            if (isset($this->interchange->directives[$s])) {
-                $this->error("alias '$s'", 'collides with another directive');
-            }
-            if (isset($this->aliases[$s])) {
-                $other_directive = $this->aliases[$s];
-                $this->error("alias '$s'", "collides with alias for directive '$other_directive'");
-            }
-            $this->aliases[$s] = $d->id->toString();
-        }
-        array_pop($this->context);
-    }
-
-    // protected helper functions
-
-    /**
-     * Convenience function for generating HTMLPurifier_ConfigSchema_ValidatorAtom
-     * for validating simple member variables of objects.
-     * @param $obj
-     * @param $member
-     * @return HTMLPurifier_ConfigSchema_ValidatorAtom
-     */
-    protected function with($obj, $member)
-    {
-        return new HTMLPurifier_ConfigSchema_ValidatorAtom($this->getFormattedContext(), $obj, $member);
-    }
-
-    /**
-     * Emits an error, providing helpful context.
-     * @throws HTMLPurifier_ConfigSchema_Exception
-     */
-    protected function error($target, $msg)
-    {
-        if ($target !== false) {
-            $prefix = ucfirst($target) . ' in ' . $this->getFormattedContext();
-        } else {
-            $prefix = ucfirst($this->getFormattedContext());
-        }
-        throw new HTMLPurifier_ConfigSchema_Exception(trim($prefix . ' ' . $msg));
-    }
-
-    /**
-     * Returns a formatted context string.
-     * @return string
-     */
-    protected function getFormattedContext()
-    {
-        return implode(' in ', array_reverse($this->context));
-    }
-}
-
-// vim: et sw=4 sts=4