| 1 |
<?php |
| 2 |
|
| 3 |
/** |
| 4 |
* Links model for use when the language code is added in url as a directory |
| 5 |
* for example mysite.com/en/something |
| 6 |
* implements the "links_model interface" |
| 7 |
* |
| 8 |
* @since 1.2 |
| 9 |
*/ |
| 10 |
class PLL_Links_Directory extends PLL_Links_Permalinks { |
| 11 |
protected $home_relative; |
| 12 |
|
| 13 |
/** |
| 14 |
* Constructor |
| 15 |
* |
| 16 |
* @since 1.2 |
| 17 |
* |
| 18 |
* @param object $model PLL_Model instance |
| 19 |
*/ |
| 20 |
public function __construct( &$model ) { |
| 21 |
parent::__construct( $model ); |
| 22 |
|
| 23 |
$this->home_relative = home_url( '/', 'relative' ); |
| 24 |
|
| 25 |
if ( did_action( 'pll_init' ) ) { |
| 26 |
$this->init(); |
| 27 |
} else { |
| 28 |
add_action( 'pll_init', array( $this, 'init' ) ); |
| 29 |
} |
| 30 |
} |
| 31 |
|
| 32 |
/** |
| 33 |
* Called only at first object creation to avoid duplicating filters when switching blog |
| 34 |
* |
| 35 |
* @since 1.6 |
| 36 |
*/ |
| 37 |
public function init() { |
| 38 |
if ( did_action( 'setup_theme' ) ) { |
| 39 |
$this->add_permastruct(); |
| 40 |
} else { |
| 41 |
add_action( 'setup_theme', array( $this, 'add_permastruct' ), 2 ); |
| 42 |
} |
| 43 |
|
| 44 |
// Make sure to prepare rewrite rules when flushing |
| 45 |
add_action( 'pre_option_rewrite_rules', array( $this, 'prepare_rewrite_rules' ) ); |
| 46 |
} |
| 47 |
|
| 48 |
/** |
| 49 |
* Adds the language code in url |
| 50 |
* links_model interface |
| 51 |
* |
| 52 |
* @since 1.2 |
| 53 |
* |
| 54 |
* @param string $url url to modify |
| 55 |
* @param object $lang language |
| 56 |
* @return string modified url |
| 57 |
*/ |
| 58 |
public function add_language_to_link( $url, $lang ) { |
| 59 |
if ( ! empty( $lang ) ) { |
| 60 |
$base = $this->options['rewrite'] ? '' : 'language/'; |
| 61 |
$slug = $this->options['default_lang'] == $lang->slug && $this->options['hide_default'] ? '' : $base . $lang->slug . '/'; |
| 62 |
$root = ( false === strpos( $url, '://' ) ) ? $this->home_relative . $this->root : $this->home . '/' . $this->root; |
| 63 |
|
| 64 |
if ( false === strpos( $url, $new = $root . $slug ) ) { |
| 65 |
$pattern = str_replace( '/', '\/', $root ); |
| 66 |
$pattern = '#' . $pattern . '#'; |
| 67 |
return preg_replace( $pattern, $new, $url, 1 ); // Only once |
| 68 |
} |
| 69 |
} |
| 70 |
return $url; |
| 71 |
} |
| 72 |
|
| 73 |
/** |
| 74 |
* Returns the url without language code |
| 75 |
* links_model interface |
| 76 |
* |
| 77 |
* @since 1.2 |
| 78 |
* |
| 79 |
* @param string $url url to modify |
| 80 |
* @return string modified url |
| 81 |
*/ |
| 82 |
public function remove_language_from_link( $url ) { |
| 83 |
foreach ( $this->model->get_languages_list() as $language ) { |
| 84 |
if ( ! $this->options['hide_default'] || $this->options['default_lang'] != $language->slug ) { |
| 85 |
$languages[] = $language->slug; |
| 86 |
} |
| 87 |
} |
| 88 |
|
| 89 |
if ( ! empty( $languages ) ) { |
| 90 |
$root = ( false === strpos( $url, '://' ) ) ? $this->home_relative . $this->root : $this->home . '/' . $this->root; |
| 91 |
|
| 92 |
$pattern = str_replace( '/', '\/', $root ); |
| 93 |
$pattern = '#' . $pattern . ( $this->options['rewrite'] ? '' : 'language\/' ) . '(' . implode( '|', $languages ) . ')(\/|$)#'; |
| 94 |
$url = preg_replace( $pattern, $root, $url ); |
| 95 |
} |
| 96 |
return $url; |
| 97 |
} |
| 98 |
|
| 99 |
/** |
| 100 |
* Returns the language based on language code in url |
| 101 |
* links_model interface |
| 102 |
* |
| 103 |
* @since 1.2 |
| 104 |
* @since 2.0 add $url argument |
| 105 |
* |
| 106 |
* @param string $url optional, defaults to current url |
| 107 |
* @return string language slug |
| 108 |
*/ |
| 109 |
public function get_language_from_url( $url = '' ) { |
| 110 |
if ( empty( $url ) ) { |
| 111 |
$path = $_SERVER['REQUEST_URI']; |
| 112 |
} else { |
| 113 |
$path = parse_url( $url, PHP_URL_PATH ); |
| 114 |
} |
| 115 |
|
| 116 |
$root = ( false === strpos( $url, '://' ) ) ? $this->home_relative . $this->root : $this->home . '/' . $this->root; |
| 117 |
|
| 118 |
$pattern = parse_url( $root . ( $this->options['rewrite'] ? '' : 'language/' ), PHP_URL_PATH ); |
| 119 |
$pattern = str_replace( '/', '\/', $pattern ); |
| 120 |
$pattern = '#' . $pattern . '(' . implode( '|', $this->model->get_languages_list( array( 'fields' => 'slug' ) ) ) . ')(\/|$)#'; |
| 121 |
return preg_match( $pattern, trailingslashit( $path ), $matches ) ? $matches[1] : ''; // $matches[1] is the slug of the requested language |
| 122 |
} |
| 123 |
|
| 124 |
/** |
| 125 |
* Returns the home url |
| 126 |
* links_model interface |
| 127 |
* |
| 128 |
* @since 1.3.1 |
| 129 |
* |
| 130 |
* @param object $lang PLL_Language object |
| 131 |
* @return string |
| 132 |
*/ |
| 133 |
public function home_url( $lang ) { |
| 134 |
$base = $this->options['rewrite'] ? '' : 'language/'; |
| 135 |
$slug = $this->options['default_lang'] == $lang->slug && $this->options['hide_default'] ? '' : '/' . $this->root . $base . $lang->slug; |
| 136 |
return trailingslashit( $this->home . $slug ); |
| 137 |
} |
| 138 |
|
| 139 |
/** |
| 140 |
* Optionally removes 'language' in permalinks so that we get http://www.myblog/en/ instead of http://www.myblog/language/en/ |
| 141 |
* |
| 142 |
* @since 1.2 |
| 143 |
*/ |
| 144 |
public function add_permastruct() { |
| 145 |
// Language information always in front of the uri ( 'with_front' => false ) |
| 146 |
// The 3rd parameter structure has been modified in WP 3.4 |
| 147 |
// Leads to error 404 for pages when there is no language created yet |
| 148 |
if ( $this->model->get_languages_list() ) { |
| 149 |
add_permastruct( 'language', $this->options['rewrite'] ? '%language%' : 'language/%language%', array( 'with_front' => false ) ); |
| 150 |
} |
| 151 |
} |
| 152 |
|
| 153 |
/** |
| 154 |
* Prepares rewrite rules filters |
| 155 |
* |
| 156 |
* @since 0.8.1 |
| 157 |
* |
| 158 |
* @param array $pre not used |
| 159 |
* @return unmodified $pre |
| 160 |
*/ |
| 161 |
public function prepare_rewrite_rules( $pre ) { |
| 162 |
// Don't modify the rules if there is no languages created yet |
| 163 |
// Make sure to add filter only once and if all custom post types and taxonomies have been registered |
| 164 |
if ( $this->model->get_languages_list() && did_action( 'wp_loaded' ) && ! has_filter( 'language_rewrite_rules', '__return_empty_array' ) ) { |
| 165 |
// Suppress the rules created by WordPress for our taxonomy |
| 166 |
add_filter( 'language_rewrite_rules', '__return_empty_array' ); |
| 167 |
|
| 168 |
foreach ( $this->get_rewrite_rules_filters() as $type ) { |
| 169 |
add_filter( $type . '_rewrite_rules', array( $this, 'rewrite_rules' ) ); |
| 170 |
} |
| 171 |
|
| 172 |
add_filter( 'rewrite_rules_array', array( $this, 'rewrite_rules' ) ); // needed for post type archives |
| 173 |
} |
| 174 |
return $pre; |
| 175 |
} |
| 176 |
|
| 177 |
/** |
| 178 |
* The rewrite rules ! |
| 179 |
* always make sure the default language is at the end in case the language information is hidden for default language |
| 180 |
* thanks to brbrbr http://wordpress.org/support/topic/plugin-polylang-rewrite-rules-not-correct |
| 181 |
* |
| 182 |
* @since 0.8.1 |
| 183 |
* |
| 184 |
* @param array $rules rewrite rules |
| 185 |
* @return array modified rewrite rules |
| 186 |
*/ |
| 187 |
public function rewrite_rules( $rules ) { |
| 188 |
$filter = str_replace( '_rewrite_rules', '', current_filter() ); |
| 189 |
|
| 190 |
global $wp_rewrite; |
| 191 |
$newrules = array(); |
| 192 |
|
| 193 |
$languages = $this->model->get_languages_list( array( 'fields' => 'slug' ) ); |
| 194 |
if ( $this->options['hide_default'] ) { |
| 195 |
$languages = array_diff( $languages, array( $this->options['default_lang'] ) ); |
| 196 |
} |
| 197 |
|
| 198 |
if ( ! empty( $languages ) ) { |
| 199 |
$slug = $wp_rewrite->root . ( $this->options['rewrite'] ? '' : 'language/' ) . '(' . implode( '|', $languages ) . ')/'; |
| 200 |
} |
| 201 |
|
| 202 |
// For custom post type archives |
| 203 |
$cpts = array_intersect( $this->model->get_translated_post_types(), get_post_types( array( '_builtin' => false ) ) ); |
| 204 |
$cpts = $cpts ? '#post_type=(' . implode( '|', $cpts ) . ')#' : ''; |
| 205 |
|
| 206 |
foreach ( $rules as $key => $rule ) { |
| 207 |
// Special case for translated post types and taxonomies to allow canonical redirection |
| 208 |
if ( $this->options['force_lang'] && in_array( $filter, array_merge( $this->model->get_translated_post_types(), $this->model->get_translated_taxonomies() ) ) ) { |
| 209 |
|
| 210 |
/** |
| 211 |
* Filters the rewrite rules to modify |
| 212 |
* |
| 213 |
* @since 1.9.1 |
| 214 |
* |
| 215 |
* @param bool $modify whether to modify or not the rule, defaults to true |
| 216 |
* @param array $rule original rewrite rule |
| 217 |
* @param string $filter current set of rules being modified |
| 218 |
* @param string|bool $archive custom post post type archive name or false if it is not a cpt archive |
| 219 |
*/ |
| 220 |
if ( isset( $slug ) && apply_filters( 'pll_modify_rewrite_rule', true, array( $key => $rule ), $filter, false ) ) { |
| 221 |
$newrules[ $slug . str_replace( $wp_rewrite->root, '', ltrim( $key, '^' ) ) ] = str_replace( |
| 222 |
array( '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '[1]', '?' ), |
| 223 |
array( '[9]', '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '?lang=$matches[1]&' ), |
| 224 |
$rule |
| 225 |
); // Should be enough! |
| 226 |
} |
| 227 |
|
| 228 |
$newrules[ $key ] = $rule; |
| 229 |
} |
| 230 |
|
| 231 |
// Rewrite rules filtered by language |
| 232 |
elseif ( in_array( $filter, $this->always_rewrite ) || in_array( $filter, $this->model->get_filtered_taxonomies() ) || ( $cpts && preg_match( $cpts, $rule, $matches ) && ! strpos( $rule, 'name=' ) ) || ( 'rewrite_rules_array' != $filter && $this->options['force_lang'] ) ) { |
| 233 |
|
| 234 |
/** This filter is documented in include/links-directory.php */ |
| 235 |
if ( apply_filters( 'pll_modify_rewrite_rule', true, array( $key => $rule ), $filter, empty( $matches[1] ) ? false : $matches[1] ) ) { |
| 236 |
if ( isset( $slug ) ) { |
| 237 |
$newrules[ $slug . str_replace( $wp_rewrite->root, '', ltrim( $key, '^' ) ) ] = str_replace( |
| 238 |
array( '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '[1]', '?' ), |
| 239 |
array( '[9]', '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '?lang=$matches[1]&' ), |
| 240 |
$rule |
| 241 |
); // Should be enough! |
| 242 |
} |
| 243 |
|
| 244 |
if ( $this->options['hide_default'] ) { |
| 245 |
$newrules[ $key ] = str_replace( '?', '?lang=' . $this->options['default_lang'] . '&', $rule ); |
| 246 |
} |
| 247 |
} else { |
| 248 |
$newrules[ $key ] = $rule; |
| 249 |
} |
| 250 |
} |
| 251 |
|
| 252 |
// Unmodified rules |
| 253 |
else { |
| 254 |
$newrules[ $key ] = $rule; |
| 255 |
} |
| 256 |
} |
| 257 |
|
| 258 |
// The home rewrite rule |
| 259 |
if ( 'root' == $filter && isset( $slug ) ) { |
| 260 |
$newrules[ $slug . '?$' ] = $wp_rewrite->index . '?lang=$matches[1]'; |
| 261 |
} |
| 262 |
|
| 263 |
return $newrules; |
| 264 |
} |
| 265 |
} |
| 266 |
|
