/**
* @covers \Pressbooks\Sanitize\remove_control_characters
*/
public function test_remove_control_characters()
{
$var = "Hello-World!";
$test = $this->_generateControlCharacters() . $var;
$test = \Pressbooks\Sanitize\remove_control_characters($test);
$this->assertEquals(12, strlen($test));
$var = "Héllö Wôrld!";
$test = \Pressbooks\Sanitize\remove_control_characters($var);
$this->assertEquals(12, mb_strlen($test, 'UTF-8'));
$var = "こんにちは世界!";
$test = \Pressbooks\Sanitize\remove_control_characters($var);
$this->assertEquals(8, mb_strlen($test, 'UTF-8'));
}
/**
* Returns book information in a useful, string only, format. Data is converted to HTML.
*
* @return array
*/
static function getBookInformation($id = '')
{
// -----------------------------------------------------------------------------
// Is cached?
// -----------------------------------------------------------------------------
if (!empty($id) && is_int($id)) {
// @codingStandardsIgnoreLine
$blog_id = $id;
switch_to_blog($blog_id);
} else {
global $blog_id;
}
$cache_id = "book-inf-{$blog_id}";
$book_information = wp_cache_get($cache_id, 'pb');
if ($book_information) {
return $book_information;
}
// ----------------------------------------------------------------------------
// Book Information
// ----------------------------------------------------------------------------
$expected_array = array('pb_keywords_tags', 'pb_bisac_subject', 'pb_contributing_authors');
$expected_the_content = array('pb_custom_copyright', 'pb_about_unlimited');
$expected_url = array('pb_cover_image');
$book_information = array();
$meta = new Metadata();
$data = $meta->getMetaPostMetadata();
foreach ($data as $key => $val) {
// Skip anything not prefixed with pb_
if (!preg_match('/^pb_/', $key)) {
continue;
}
// We only care about strings
if (is_array($val)) {
if (false !== in_array($key, $expected_array)) {
$val = implode(', ', $val);
} else {
$val = array_values($val);
$val = array_pop($val);
}
}
// Skip empty values
if (!trim($val)) {
continue;
}
if (false !== in_array($key, $expected_the_content)) {
$val = wptexturize($val);
$val = wpautop($val);
} else {
$val = htmlspecialchars($val, ENT_NOQUOTES | ENT_XHTML, 'UTF-8', false);
}
// Normalize URLs
if (in_array($key, $expected_url)) {
$val = set_url_scheme($val);
}
// Remove invisible control characters that break XML
$val = \Pressbooks\Sanitize\remove_control_characters($val);
$book_information[$key] = $val;
}
// Return our best guess if no book information has been entered.
if (empty($book_information)) {
$book_information['pb_title'] = get_bloginfo('name');
if (!function_exists('get_user_by')) {
include ABSPATH . 'wp-includes/pluggable.php';
}
$author = get_user_by('email', get_bloginfo('admin_email'));
$book_information['pb_author'] = isset($author->display_name) ? $author->display_name : '';
$book_information['pb_cover_image'] = \Pressbooks\Image\default_cover_url();
}
// -----------------------------------------------------------------------------
// Cache & Return
// -----------------------------------------------------------------------------
wp_cache_set($cache_id, $book_information, 'pb', 86400);
if (!empty($id) && is_int($id)) {
restore_current_blog();
}
return $book_information;
}