: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, 159 insertions, 0 deletions

diff --git a/vendor/ezyang/htmlpurifier/maintenance/generate-standalone.php b/vendor/ezyang/htmlpurifier/maintenance/generate-standalone.php
new file mode 100755
index 000000000..254d4d83b
--- /dev/null
+++ b/vendor/ezyang/htmlpurifier/maintenance/generate-standalone.php
@@ -0,0 +1,159 @@
+#!/usr/bin/php
+<?php
+
+chdir(dirname(__FILE__));
+require_once 'common.php';
+assertCli();
+
+/**
+ * @file
+ * Compiles all of HTML Purifier's library files into one big file
+ * named HTMLPurifier.standalone.php. This is usually called during the
+ * release process.
+ */
+
+/**
+ * Global hash that tracks already loaded includes
+ */
+$GLOBALS['loaded'] = array();
+
+/**
+ * Custom FSTools for this script that overloads some behavior
+ * @warning The overloading of copy() is not necessarily global for
+ *          this script. Watch out!
+ */
+class MergeLibraryFSTools extends FSTools
+{
+    public function copyable($entry)
+    {
+        // Skip hidden files
+        if ($entry[0] == '.') {
+            return false;
+        }
+        return true;
+    }
+    public function copy($source, $dest)
+    {
+        copy_and_remove_includes($source, $dest);
+    }
+}
+$FS = new MergeLibraryFSTools();
+
+/**
+ * Replaces the includes inside PHP source code with the corresponding
+ * source.
+ * @param string $text PHP source code to replace includes from
+ */
+function replace_includes($text)
+{
+    // also remove vim modelines
+    return preg_replace_callback(
+        "/require(?:_once)? ['\"]([^'\"]+)['\"];/",
+        'replace_includes_callback',
+        $text
+    );
+}
+
+/**
+ * Removes leading PHP tags from included files. Assumes that there is
+ * no trailing tag. Also removes vim modelines.
+ * @note This is safe for files that have internal <?php
+ * @param string $text Text to have leading PHP tag from
+ */
+function remove_php_tags($text)
+{
+    $text = preg_replace('#// vim:.+#', '', $text);
+    return substr($text, 5);
+}
+
+/**
+ * Copies the contents of a directory to the standalone directory
+ * @param string $dir Directory to copy
+ */
+function make_dir_standalone($dir)
+{
+    global $FS;
+    return $FS->copyr($dir, 'standalone/' . $dir);
+}
+
+/**
+ * Copies the contents of a file to the standalone directory
+ * @param string $file File to copy
+ */
+function make_file_standalone($file)
+{
+    global $FS;
+    $FS->mkdirr('standalone/' . dirname($file));
+    copy_and_remove_includes($file, 'standalone/' . $file);
+    return true;
+}
+
+/**
+ * Copies a file to another location recursively, if it is a PHP file
+ * remove includes
+ * @param string $file Original file
+ * @param string $sfile New location of file
+ */
+function copy_and_remove_includes($file, $sfile)
+{
+    $contents = file_get_contents($file);
+    if (strrchr($file, '.') === '.php') $contents = replace_includes($contents);
+    return file_put_contents($sfile, $contents);
+}
+
+/**
+ * @param $matches preg_replace_callback matches array, where index 1
+ *        is the filename to include
+ */
+function replace_includes_callback($matches)
+{
+    $file = $matches[1];
+    $preserve = array(
+      // PEAR (external)
+      'XML/HTMLSax3.php' => 1
+    );
+    if (isset($preserve[$file])) {
+        return $matches[0];
+    }
+    if (isset($GLOBALS['loaded'][$file])) return '';
+    $GLOBALS['loaded'][$file] = true;
+    return replace_includes(remove_php_tags(file_get_contents($file)));
+}
+
+echo 'Generating includes file... ';
+shell_exec('php generate-includes.php');
+echo "done!\n";
+
+chdir(dirname(__FILE__) . '/../library/');
+
+echo 'Creating full file...';
+$contents = replace_includes(file_get_contents('HTMLPurifier.includes.php'));
+$contents = str_replace(
+    // Note that bootstrap is now inside the standalone file
+    "define('HTMLPURIFIER_PREFIX', realpath(dirname(__FILE__) . '/..'));",
+    "define('HTMLPURIFIER_PREFIX', dirname(__FILE__) . '/standalone');
+    set_include_path(HTMLPURIFIER_PREFIX . PATH_SEPARATOR . get_include_path());",
+    $contents
+);
+file_put_contents('HTMLPurifier.standalone.php', $contents);
+echo ' done!' . PHP_EOL;
+
+echo 'Creating standalone directory...';
+$FS->rmdirr('standalone'); // ensure a clean copy
+
+// data files
+$FS->mkdirr('standalone/HTMLPurifier/DefinitionCache/Serializer');
+make_file_standalone('HTMLPurifier/EntityLookup/entities.ser');
+make_file_standalone('HTMLPurifier/ConfigSchema/schema.ser');
+
+// non-standard inclusion setup
+make_dir_standalone('HTMLPurifier/ConfigSchema');
+make_dir_standalone('HTMLPurifier/Language');
+make_dir_standalone('HTMLPurifier/Filter');
+make_dir_standalone('HTMLPurifier/Printer');
+make_file_standalone('HTMLPurifier/Printer.php');
+make_file_standalone('HTMLPurifier/Lexer/PH5P.php');
+
+echo ' done!' . PHP_EOL;
+
+// vim: et sw=4 sts=4