| 1 |
<?php |
| 2 |
/** |
| 3 |
* Base class other (more-specific) classes inherit from. |
| 4 |
*/ |
| 5 |
|
| 6 |
if ( ! defined( 'ABSPATH' ) ) { |
| 7 |
exit; |
| 8 |
} |
| 9 |
|
| 10 |
abstract class autoptimizeBase |
| 11 |
{ |
| 12 |
/** |
| 13 |
* Holds content being processed (html, scripts, styles) |
| 14 |
* |
| 15 |
* @var string |
| 16 |
*/ |
| 17 |
protected $content = ''; |
| 18 |
|
| 19 |
/** |
| 20 |
* Controls debug logging. |
| 21 |
* |
| 22 |
* @var bool |
| 23 |
*/ |
| 24 |
public $debug_log = false; |
| 25 |
|
| 26 |
/** @var string */ |
| 27 |
public $cdn_url = ''; |
| 28 |
|
| 29 |
public function __construct( $content ) |
| 30 |
{ |
| 31 |
$this->content = $content; |
| 32 |
} |
| 33 |
|
| 34 |
/** |
| 35 |
* Reads the page and collects tags. |
| 36 |
* |
| 37 |
* @param array $options Options. |
| 38 |
* |
| 39 |
* @return bool |
| 40 |
*/ |
| 41 |
abstract public function read( $options ); |
| 42 |
|
| 43 |
/** |
| 44 |
* Joins and optimizes collected things. |
| 45 |
* |
| 46 |
* @return bool |
| 47 |
*/ |
| 48 |
abstract public function minify(); |
| 49 |
|
| 50 |
/** |
| 51 |
* Caches the things. |
| 52 |
* |
| 53 |
* @return void |
| 54 |
*/ |
| 55 |
abstract public function cache(); |
| 56 |
|
| 57 |
/** |
| 58 |
* Returns the content |
| 59 |
* |
| 60 |
* @return string |
| 61 |
*/ |
| 62 |
abstract public function getcontent(); |
| 63 |
|
| 64 |
/** |
| 65 |
* Tranfsorms a given URL to a full local filepath if possible. |
| 66 |
* Returns local filepath or false. |
| 67 |
* |
| 68 |
* @param string $url URL to transform. |
| 69 |
* |
| 70 |
* @return bool|string |
| 71 |
*/ |
| 72 |
public function getpath( $url ) |
| 73 |
{ |
| 74 |
$url = apply_filters( 'autoptimize_filter_cssjs_alter_url', $url ); |
| 75 |
|
| 76 |
if ( false !== strpos( $url, '%' ) ) { |
| 77 |
$url = urldecode( $url ); |
| 78 |
} |
| 79 |
|
| 80 |
$site_host = parse_url( AUTOPTIMIZE_WP_SITE_URL, PHP_URL_HOST ); |
| 81 |
$content_host = parse_url( AUTOPTIMIZE_WP_ROOT_URL, PHP_URL_HOST ); |
| 82 |
|
| 83 |
// Normalizing attempts... |
| 84 |
$double_slash_position = strpos( $url, '//' ); |
| 85 |
if ( 0 === $double_slash_position ) { |
| 86 |
if ( is_ssl() ) { |
| 87 |
$url = 'https:' . $url; |
| 88 |
} else { |
| 89 |
$url = 'http:' . $url; |
| 90 |
} |
| 91 |
} elseif ( ( false === $double_slash_position ) && ( false === strpos( $url, $site_host ) ) ) { |
| 92 |
if ( AUTOPTIMIZE_WP_SITE_URL === $site_host ) { |
| 93 |
$url = AUTOPTIMIZE_WP_SITE_URL . $url; |
| 94 |
} else { |
| 95 |
$url = AUTOPTIMIZE_WP_SITE_URL . autoptimizeUtils::path_canonicalize( $url ); |
| 96 |
} |
| 97 |
} |
| 98 |
|
| 99 |
if ( $site_host !== $content_host ) { |
| 100 |
$url = str_replace( AUTOPTIMIZE_WP_CONTENT_URL, AUTOPTIMIZE_WP_SITE_URL . AUTOPTIMIZE_WP_CONTENT_NAME, $url ); |
| 101 |
} |
| 102 |
|
| 103 |
// First check; hostname wp site should be hostname of url! |
| 104 |
$url_host = @parse_url( $url, PHP_URL_HOST ); // @codingStandardsIgnoreLine |
| 105 |
if ( $url_host !== $site_host ) { |
| 106 |
/** |
| 107 |
* First try to get all domains from WPML (if available) |
| 108 |
* then explicitely declare $this->cdn_url as OK as well |
| 109 |
* then apply own filter autoptimize_filter_cssjs_multidomain takes an array of hostnames |
| 110 |
* each item in that array will be considered part of the same WP multisite installation |
| 111 |
*/ |
| 112 |
$multidomains = array(); |
| 113 |
|
| 114 |
$multidomains_wpml = apply_filters( 'wpml_setting', array(), 'language_domains' ); |
| 115 |
if ( ! empty( $multidomains_wpml ) ) { |
| 116 |
$multidomains = array_map( array( $this, 'get_url_hostname' ), $multidomains_wpml ); |
| 117 |
} |
| 118 |
|
| 119 |
if ( ! empty( $this->cdn_url ) ) { |
| 120 |
$multidomains[] = parse_url( $this->cdn_url, PHP_URL_HOST ); |
| 121 |
} |
| 122 |
|
| 123 |
$multidomains = apply_filters( 'autoptimize_filter_cssjs_multidomain', $multidomains ); |
| 124 |
|
| 125 |
if ( ! empty( $multidomains ) ) { |
| 126 |
if ( in_array( $url_host, $multidomains ) ) { |
| 127 |
$url = str_replace( $url_host, $site_host, $url ); |
| 128 |
} else { |
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return false; |
| 130 |
} |
| 131 |
} else { |
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return false; |
| 133 |
} |
| 134 |
} |
| 135 |
|
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// Try to remove "wp root url" from url while not minding http<>https. |
| 137 |
$tmp_ao_root = preg_replace( '/https?:/', '', AUTOPTIMIZE_WP_ROOT_URL ); |
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|
| 139 |
if ( $site_host !== $content_host ) { |
| 140 |
// As we replaced the content-domain with the site-domain, we should match against that. |
| 141 |
$tmp_ao_root = preg_replace( '/https?:/', '', AUTOPTIMIZE_WP_SITE_URL ); |
| 142 |
} |
| 143 |
|
| 144 |
$tmp_url = preg_replace( '/https?:/', '', $url ); |
| 145 |
$path = str_replace( $tmp_ao_root, '', $tmp_url ); |
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|
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// If path starts with :// or //, this is not a URL in the WP context and |
| 148 |
// we have to assume we can't aggregate. |
| 149 |
if ( preg_match( '#^:?//#', $path ) ) { |
| 150 |
// External script/css (adsense, etc). |
| 151 |
return false; |
| 152 |
} |
| 153 |
|
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// Prepend with WP_ROOT_DIR to have full path to file. |
| 155 |
$path = str_replace( '//', '/', WP_ROOT_DIR . $path ); |
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|
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// Final check: does file exist and is it readable? |
| 158 |
if ( file_exists( $path ) && is_file( $path ) && is_readable( $path ) ) { |
| 159 |
return $path; |
| 160 |
} else { |
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return false; |
| 162 |
} |
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} |
| 164 |
|
| 165 |
/** |
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* Returns the hostname part of a given $url if we're able to parse it. |
| 167 |
* If not, it returns the original url (prefixed with http:// scheme in case |
| 168 |
* it was missing). |
| 169 |
* Used as callback for WPML multidomains filter. |
| 170 |
* |
| 171 |
* @param string $url URL. |
| 172 |
* |
| 173 |
* @return string |
| 174 |
*/ |
| 175 |
protected function get_url_hostname( $url ) |
| 176 |
{ |
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// Checking that the url starts with something vaguely resembling a protocol. |
| 178 |
if ( ( 0 !== strpos( $url, 'http' ) ) && ( 0 !== strpos( $url, '//' ) ) ) { |
| 179 |
$url = 'http://' . $url; |
| 180 |
} |
| 181 |
|
| 182 |
// Grab the hostname. |
| 183 |
$hostname = parse_url( $url, PHP_URL_HOST ); |
| 184 |
|
| 185 |
// Fallback when parse_url() fails. |
| 186 |
if ( empty( $hostname ) ) { |
| 187 |
$hostname = $url; |
| 188 |
} |
| 189 |
|
| 190 |
return $hostname; |
| 191 |
} |
| 192 |
|
| 193 |
/** |
| 194 |
* Hides everything between noptimize-comment tags. |
| 195 |
* |
| 196 |
* @param string $markup Markup to process. |
| 197 |
* |
| 198 |
* @return string |
| 199 |
*/ |
| 200 |
protected function hide_noptimize( $markup ) |
| 201 |
{ |
| 202 |
return $this->replace_contents_with_marker_if_exists( |
| 203 |
'NOPTIMIZE', |
| 204 |
'/<!--\s?noptimize\s?-->/', |
| 205 |
'#<!--\s?noptimize\s?-->.*?<!--\s?/\s?noptimize\s?-->#is', |
| 206 |
$markup |
| 207 |
); |
| 208 |
} |
| 209 |
|
| 210 |
/** |
| 211 |
* Unhide noptimize-tags. |
| 212 |
* |
| 213 |
* @param string $markup Markup to process. |
| 214 |
* |
| 215 |
* @return string |
| 216 |
*/ |
| 217 |
protected function restore_noptimize( $markup ) |
| 218 |
{ |
| 219 |
return $this->restore_marked_content( 'NOPTIMIZE', $markup ); |
| 220 |
} |
| 221 |
|
| 222 |
/** |
| 223 |
* Hides "iehacks" content. |
| 224 |
* |
| 225 |
* @param string $markup Markup to process. |
| 226 |
* |
| 227 |
* @return string |
| 228 |
*/ |
| 229 |
protected function hide_iehacks( $markup ) |
| 230 |
{ |
| 231 |
return $this->replace_contents_with_marker_if_exists( |
| 232 |
'IEHACK', // Marker name... |
| 233 |
'<!--[if', // Invalid regex, will fallback to search using strpos()... |
| 234 |
'#<!--\[if.*?\[endif\]-->#is', // Replacement regex... |
| 235 |
$markup |
| 236 |
); |
| 237 |
} |
| 238 |
|
| 239 |
/** |
| 240 |
* Restores "hidden" iehacks content. |
| 241 |
* |
| 242 |
* @param string $markup Markup to process. |
| 243 |
* |
| 244 |
* @return string |
| 245 |
*/ |
| 246 |
protected function restore_iehacks( $markup ) |
| 247 |
{ |
| 248 |
return $this->restore_marked_content( 'IEHACK', $markup ); |
| 249 |
} |
| 250 |
|
| 251 |
/** |
| 252 |
* "Hides" content within HTML comments using a regex-based replacement |
| 253 |
* if HTML comment markers are found. |
| 254 |
* `<!--example-->` becomes `%%COMMENTS%%ZXhhbXBsZQ==%%COMMENTS%%` |
| 255 |
* |
| 256 |
* @param string $markup Markup to process. |
| 257 |
* |
| 258 |
* @return string |
| 259 |
*/ |
| 260 |
protected function hide_comments( $markup ) |
| 261 |
{ |
| 262 |
return $this->replace_contents_with_marker_if_exists( |
| 263 |
'COMMENTS', |
| 264 |
'<!--', |
| 265 |
'#<!--.*?-->#is', |
| 266 |
$markup |
| 267 |
); |
| 268 |
} |
| 269 |
|
| 270 |
/** |
| 271 |
* Restores original HTML comment markers inside a string whose HTML |
| 272 |
* comments have been "hidden" by using `hide_comments()`. |
| 273 |
* |
| 274 |
* @param string $markup Markup to process. |
| 275 |
* |
| 276 |
* @return string |
| 277 |
*/ |
| 278 |
protected function restore_comments( $markup ) |
| 279 |
{ |
| 280 |
return $this->restore_marked_content( 'COMMENTS', $markup ); |
| 281 |
} |
| 282 |
|
| 283 |
/** |
| 284 |
* Replaces the given URL with the CDN-version of it when CDN replacement |
| 285 |
* is supposed to be done. |
| 286 |
* |
| 287 |
* @param string $url URL to process. |
| 288 |
* |
| 289 |
* @return string |
| 290 |
*/ |
| 291 |
public function url_replace_cdn( $url ) |
| 292 |
{ |
| 293 |
// For 2.3 back-compat in which cdn-ing appeared to be automatically |
| 294 |
// including WP subfolder/subdirectory into account as part of cdn-ing, |
| 295 |
// even though it might've caused serious troubles in certain edge-cases. |
| 296 |
$cdn_url = autoptimizeUtils::tweak_cdn_url_if_needed( $this->cdn_url ); |
| 297 |
|
| 298 |
// Allows API/filter to further tweak the cdn url... |
| 299 |
$cdn_url = apply_filters( 'autoptimize_filter_base_cdnurl', $cdn_url ); |
| 300 |
if ( ! empty( $cdn_url ) ) { |
| 301 |
$this->debug_log( 'before=' . $url ); |
| 302 |
|
| 303 |
// Simple str_replace-based approach fails when $url is protocol-or-host-relative. |
| 304 |
$is_protocol_relative = autoptimizeUtils::is_protocol_relative( $url ); |
| 305 |
$is_host_relative = ( ! $is_protocol_relative && ( '/' === $url{0} ) ); |
| 306 |
$cdn_url = rtrim( $cdn_url, '/' ); |
| 307 |
|
| 308 |
if ( $is_host_relative ) { |
| 309 |
// Prepending host-relative urls with the cdn url. |
| 310 |
$url = $cdn_url . $url; |
| 311 |
} else { |
| 312 |
// Either a protocol-relative or "regular" url, replacing it either way. |
| 313 |
if ( $is_protocol_relative ) { |
| 314 |
// Massage $site_url so that simple str_replace() still "works" by |
| 315 |
// searching for the protocol-relative version of AUTOPTIMIZE_WP_SITE_URL. |
| 316 |
$site_url = str_replace( array( 'http:', 'https:' ), '', AUTOPTIMIZE_WP_SITE_URL ); |
| 317 |
} else { |
| 318 |
$site_url = AUTOPTIMIZE_WP_SITE_URL; |
| 319 |
} |
| 320 |
$this->debug_log( '`' . $site_url . '` -> `' . $cdn_url . '` in `' . $url . '`' ); |
| 321 |
$url = str_replace( $site_url, $cdn_url, $url ); |
| 322 |
} |
| 323 |
|
| 324 |
$this->debug_log( 'after=' . $url ); |
| 325 |
} |
| 326 |
|
| 327 |
// Allow API filter to take further care of CDN replacement. |
| 328 |
$url = apply_filters( 'autoptimize_filter_base_replace_cdn', $url ); |
| 329 |
|
| 330 |
return $url; |
| 331 |
} |
| 332 |
|
| 333 |
/** |
| 334 |
* Injects/replaces the given payload markup into `$this->content` |
| 335 |
* at the specified location. |
| 336 |
* If the specified tag cannot be found, the payload is appended into |
| 337 |
* $this->content along with a warning wrapped inside <!--noptimize--> tags. |
| 338 |
* |
| 339 |
* @param string $payload Markup to inject. |
| 340 |
* @param array $where Array specifying the tag name and method of injection. |
| 341 |
* Index 0 is the tag name (i.e., `</body>`). |
| 342 |
* Index 1 specifies Ë›'before', 'after' or 'replace'. Defaults to 'before'. |
| 343 |
* |
| 344 |
* @return void |
| 345 |
*/ |
| 346 |
protected function inject_in_html( $payload, $where ) |
| 347 |
{ |
| 348 |
$warned = false; |
| 349 |
$position = autoptimizeUtils::strpos( $this->content, $where[0] ); |
| 350 |
if ( false !== $position ) { |
| 351 |
// Found the tag, setup content/injection as specified. |
| 352 |
if ( 'after' === $where[1] ) { |
| 353 |
$content = $where[0] . $payload; |
| 354 |
} elseif ( 'replace' === $where[1] ) { |
| 355 |
$content = $payload; |
| 356 |
} else { |
| 357 |
$content = $payload . $where[0]; |
| 358 |
} |
| 359 |
// Place where specified. |
| 360 |
$this->content = autoptimizeUtils::substr_replace( |
| 361 |
$this->content, |
| 362 |
$content, |
| 363 |
$position, |
| 364 |
// Using plain strlen() should be safe here for now, since |
| 365 |
// we're not searching for multibyte chars here still... |
| 366 |
strlen( $where[0] ) |
| 367 |
); |
| 368 |
} else { |
| 369 |
// Couldn't find what was specified, just append and add a warning. |
| 370 |
$this->content .= $payload; |
| 371 |
if ( ! $warned ) { |
| 372 |
$tag_display = str_replace( array( '<', '>' ), '', $where[0] ); |
| 373 |
$this->content .= '<!--noptimize--><!-- Autoptimize found a problem with the HTML in your Theme, tag `' . $tag_display . '` missing --><!--/noptimize-->'; |
| 374 |
$warned = true; |
| 375 |
} |
| 376 |
} |
| 377 |
} |
| 378 |
|
| 379 |
/** |
| 380 |
* Returns true if given `$tag` is found in the list of `$removables`. |
| 381 |
* |
| 382 |
* @param string $tag Tag to search for. |
| 383 |
* @param array $removables List of things considered completely removable. |
| 384 |
* |
| 385 |
* @return bool |
| 386 |
*/ |
| 387 |
protected function isremovable( $tag, $removables ) |
| 388 |
{ |
| 389 |
foreach ( $removables as $match ) { |
| 390 |
if ( false !== strpos( $tag, $match ) ) { |
| 391 |
return true; |
| 392 |
} |
| 393 |
} |
| 394 |
|
| 395 |
return false; |
| 396 |
} |
| 397 |
|
| 398 |
/** |
| 399 |
* Callback used in `self::inject_minified()`. |
| 400 |
* |
| 401 |
* @param array $matches Regex matches. |
| 402 |
* |
| 403 |
* @return string |
| 404 |
*/ |
| 405 |
public function inject_minified_callback( $matches ) |
| 406 |
{ |
| 407 |
static $conf = null; |
| 408 |
if ( null === $conf ) { |
| 409 |
$conf = autoptimizeConfig::instance(); |
| 410 |
} |
| 411 |
|
| 412 |
/** |
| 413 |
* $matches[1] holds the whole match caught by regex in self::inject_minified(), |
| 414 |
* so we take that and split the string on `|`. |
| 415 |
* First element is the filepath, second is the md5 hash of contents |
| 416 |
* the filepath had when it was being processed. |
| 417 |
* If we don't have those, we'll bail out early. |
| 418 |
*/ |
| 419 |
$filepath = null; |
| 420 |
$filehash = null; |
| 421 |
|
| 422 |
// Grab the parts we need. |
| 423 |
$parts = explode( '|', $matches[1] ); |
| 424 |
if ( ! empty( $parts ) ) { |
| 425 |
$filepath = isset( $parts[0] ) ? base64_decode( $parts[0] ) : null; |
| 426 |
$filehash = isset( $parts[1] ) ? $parts[1] : null; |
| 427 |
} |
| 428 |
|
| 429 |
// Bail early if something's not right... |
| 430 |
if ( ! $filepath || ! $filehash ) { |
| 431 |
return "\n"; |
| 432 |
} |
| 433 |
|
| 434 |
$filecontent = file_get_contents( $filepath ); |
| 435 |
|
| 436 |
// Some things are differently handled for css/js... |
| 437 |
$is_js_file = ( '.js' === substr( $filepath, -3, 3 ) ); |
| 438 |
|
| 439 |
$is_css_file = false; |
| 440 |
if ( ! $is_js_file ) { |
| 441 |
$is_css_file = ( '.css' === substr( $filepath, -4, 4 ) ); |
| 442 |
} |
| 443 |
|
| 444 |
// BOMs being nuked here unconditionally (regardless of where they are)! |
| 445 |
$filecontent = preg_replace( "#\x{EF}\x{BB}\x{BF}#", '', $filecontent ); |
| 446 |
|
| 447 |
// Remove comments and blank lines. |
| 448 |
if ( $is_js_file ) { |
| 449 |
$filecontent = preg_replace( '#^\s*\/\/.*$#Um', '', $filecontent ); |
| 450 |
} |
| 451 |
|
| 452 |
// Nuke un-important comments. |
| 453 |
$filecontent = preg_replace( '#^\s*\/\*[^!].*\*\/\s?#Um', '', $filecontent ); |
| 454 |
|
| 455 |
// Normalize newlines. |
| 456 |
$filecontent = preg_replace( '#(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+#', "\n", $filecontent ); |
| 457 |
|
| 458 |
// JS specifics. |
| 459 |
if ( $is_js_file ) { |
| 460 |
// Append a semicolon at the end of js files if it's missing. |
| 461 |
$last_char = substr( $filecontent, -1, 1 ); |
| 462 |
if ( ';' !== $last_char && '}' !== $last_char ) { |
| 463 |
$filecontent .= ';'; |
| 464 |
} |
| 465 |
// Check if try/catch should be used. |
| 466 |
$opt_js_try_catch = $conf->get( 'autoptimize_js_trycatch' ); |
| 467 |
if ( 'on' === $opt_js_try_catch ) { |
| 468 |
// It should, wrap in try/catch. |
| 469 |
$filecontent = 'try{' . $filecontent . '}catch(e){}'; |
| 470 |
} |
| 471 |
} elseif ( $is_css_file ) { |
| 472 |
$filecontent = autoptimizeStyles::fixurls( $filepath, $filecontent ); |
| 473 |
} else { |
| 474 |
$filecontent = ''; |
| 475 |
} |
| 476 |
|
| 477 |
// Return modified (or empty!) code/content. |
| 478 |
return "\n" . $filecontent; |
| 479 |
} |
| 480 |
|
| 481 |
/** |
| 482 |
* Inject already minified code in optimized JS/CSS. |
| 483 |
* |
| 484 |
* @param string $in Markup. |
| 485 |
* |
| 486 |
* @return string |
| 487 |
*/ |
| 488 |
protected function inject_minified( $in ) |
| 489 |
{ |
| 490 |
$out = $in; |
| 491 |
if ( false !== strpos( $in, '%%INJECTLATER%%' ) ) { |
| 492 |
$out = preg_replace_callback( |
| 493 |
'#\/\*\!%%INJECTLATER' . AUTOPTIMIZE_HASH . '%%(.*?)%%INJECTLATER%%\*\/#is', |
| 494 |
array( $this, 'inject_minified_callback' ), |
| 495 |
$in |
| 496 |
); |
| 497 |
} |
| 498 |
|
| 499 |
return $out; |
| 500 |
} |
| 501 |
|
| 502 |
/** |
| 503 |
* Specialized method to create the INJECTLATER marker. |
| 504 |
* These are somewhat "special", in the sense that they're additionally wrapped |
| 505 |
* within an "exclamation mark style" comment, so that they're not stripped |
| 506 |
* out by minifiers. |
| 507 |
* They also currently contain the hash of the file's contents too (unlike other markers). |
| 508 |
* |
| 509 |
* @param string $filepath Filepath. |
| 510 |
* @param string $hash Hash. |
| 511 |
* |
| 512 |
* @return string |
| 513 |
*/ |
| 514 |
public static function build_injectlater_marker( $filepath, $hash ) |
| 515 |
{ |
| 516 |
$contents = '/*!' . self::build_marker( 'INJECTLATER', $filepath, $hash ) . '*/'; |
| 517 |
|
| 518 |
return $contents; |
| 519 |
} |
| 520 |
|
| 521 |
/** |
| 522 |
* Creates and returns a `%%`-style named marker which holds |
| 523 |
* the base64 encoded `$data`. |
| 524 |
* If `$hash` is provided, it's appended to the base64 encoded string |
| 525 |
* using `|` as the separator (in order to support building the |
| 526 |
* somewhat special/different INJECTLATER marker). |
| 527 |
* |
| 528 |
* @param string $name Marker name. |
| 529 |
* @param string $data Marker data which will be base64-encoded. |
| 530 |
* @param string|null $hash Optional. |
| 531 |
* |
| 532 |
* @return string |
| 533 |
*/ |
| 534 |
public static function build_marker( $name, $data, $hash = null ) |
| 535 |
{ |
| 536 |
// Start the marker, add the data. |
| 537 |
$marker = '%%' . $name . AUTOPTIMIZE_HASH . '%%' . base64_encode( $data ); |
| 538 |
|
| 539 |
// Add the hash if provided. |
| 540 |
if ( null !== $hash ) { |
| 541 |
$marker .= '|' . $hash; |
| 542 |
} |
| 543 |
|
| 544 |
// Close the marker. |
| 545 |
$marker .= '%%' . $name . '%%'; |
| 546 |
|
| 547 |
return $marker; |
| 548 |
} |
| 549 |
|
| 550 |
/** |
| 551 |
* Searches for `$search` in `$content` (using either `preg_match()` |
| 552 |
* or `strpos()`, depending on whether `$search` is a valid regex pattern or not). |
| 553 |
* If something is found, it replaces `$content` using `$re_replace_pattern`, |
| 554 |
* effectively creating our named markers (`%%{$marker}%%`. |
| 555 |
* These are then at some point replaced back to their actual/original/modified |
| 556 |
* contents using `autoptimizeBase::restore_marked_content()`. |
| 557 |
* |
| 558 |
* @param string $marker Marker name (without percent characters). |
| 559 |
* @param string $search A string or full blown regex pattern to search for in $content. Uses `strpos()` or `preg_match()`. |
| 560 |
* @param string $re_replace_pattern Regex pattern to use when replacing contents. |
| 561 |
* @param string $content Content to work on. |
| 562 |
* |
| 563 |
* @return string |
| 564 |
*/ |
| 565 |
public static function replace_contents_with_marker_if_exists( $marker, $search, $re_replace_pattern, $content ) |
| 566 |
{ |
| 567 |
$found = false; |
| 568 |
|
| 569 |
$is_regex = autoptimizeUtils::str_is_valid_regex( $search ); |
| 570 |
if ( $is_regex ) { |
| 571 |
$found = preg_match( $search, $content ); |
| 572 |
} else { |
| 573 |
$found = ( false !== strpos( $content, $search ) ); |
| 574 |
} |
| 575 |
|
| 576 |
if ( $found ) { |
| 577 |
$content = preg_replace_callback( |
| 578 |
$re_replace_pattern, |
| 579 |
function( $matches ) use ( $marker ) { |
| 580 |
return autoptimizeBase::build_marker( $marker, $matches[0] ); |
| 581 |
}, |
| 582 |
$content |
| 583 |
); |
| 584 |
} |
| 585 |
|
| 586 |
return $content; |
| 587 |
} |
| 588 |
|
| 589 |
/** |
| 590 |
* Complements `autoptimizeBase::replace_contents_with_marker_if_exists()`. |
| 591 |
* |
| 592 |
* @param string $marker Marker. |
| 593 |
* @param string $content Markup. |
| 594 |
* |
| 595 |
* @return string |
| 596 |
*/ |
| 597 |
public static function restore_marked_content( $marker, $content ) |
| 598 |
{ |
| 599 |
if ( false !== strpos( $content, $marker ) ) { |
| 600 |
$content = preg_replace_callback( |
| 601 |
'#%%' . $marker . AUTOPTIMIZE_HASH . '%%(.*?)%%' . $marker . '%%#is', |
| 602 |
function ( $matches ) { |
| 603 |
return base64_decode( $matches[1] ); |
| 604 |
}, |
| 605 |
$content |
| 606 |
); |
| 607 |
} |
| 608 |
|
| 609 |
return $content; |
| 610 |
} |
| 611 |
|
| 612 |
/** |
| 613 |
* Logs given `$data` for debugging purposes (when debug logging is on). |
| 614 |
* |
| 615 |
* @param mixed $data Data to log. |
| 616 |
* |
| 617 |
* @return void |
| 618 |
*/ |
| 619 |
protected function debug_log( $data ) |
| 620 |
{ |
| 621 |
if ( ! isset( $this->debug_log ) || ! $this->debug_log ) { |
| 622 |
return; |
| 623 |
} |
| 624 |
|
| 625 |
if ( ! is_string( $data ) && ! is_resource( $data ) ) { |
| 626 |
$data = var_export( $data, true ); |
| 627 |
} |
| 628 |
|
| 629 |
error_log( $data ); |
| 630 |
} |
| 631 |
|
| 632 |
/** |
| 633 |
* Checks if a single local css/js file can be minified and returns source if so. |
| 634 |
* |
| 635 |
* @param string $filepath Filepath. |
| 636 |
* |
| 637 |
* @return bool|string to be minified code or false. |
| 638 |
*/ |
| 639 |
protected function prepare_minify_single( $filepath ) |
| 640 |
{ |
| 641 |
// Decide what we're dealing with, return false if we don't know. |
| 642 |
if ( $this->str_ends_in( $filepath, '.js' ) ) { |
| 643 |
$type = 'js'; |
| 644 |
} elseif ( $this->str_ends_in( $filepath, '.css' ) ) { |
| 645 |
$type = 'css'; |
| 646 |
} else { |
| 647 |
return false; |
| 648 |
} |
| 649 |
|
| 650 |
// Bail if it looks like its already minifed (by having -min or .min |
| 651 |
// in filename) or if it looks like WP jquery.js (which is minified). |
| 652 |
$minified_variants = array( |
| 653 |
'-min.' . $type, |
| 654 |
'.min.' . $type, |
| 655 |
'js/jquery/jquery.js', |
| 656 |
); |
| 657 |
foreach ( $minified_variants as $ending ) { |
| 658 |
if ( $this->str_ends_in( $filepath, $ending ) ) { |
| 659 |
return false; |
| 660 |
} |
| 661 |
} |
| 662 |
|
| 663 |
// Get file contents, bail if empty. |
| 664 |
$contents = file_get_contents( $filepath ); |
| 665 |
|
| 666 |
return $contents; |
| 667 |
} |
| 668 |
|
| 669 |
/** |
| 670 |
* Given an autoptimizeCache instance returns the (maybe cdn-ed) url of |
| 671 |
* the cached file. |
| 672 |
* |
| 673 |
* @param autoptimizeCache $cache autoptimizeCache instance. |
| 674 |
* |
| 675 |
* @return string |
| 676 |
*/ |
| 677 |
protected function build_minify_single_url( autoptimizeCache $cache ) |
| 678 |
{ |
| 679 |
$url = AUTOPTIMIZE_CACHE_URL . $cache->getname(); |
| 680 |
|
| 681 |
// CDN-replace the resulting URL if needed... |
| 682 |
$url = $this->url_replace_cdn( $url ); |
| 683 |
|
| 684 |
return $url; |
| 685 |
} |
| 686 |
|
| 687 |
/** |
| 688 |
* Returns true if given $str ends with given $test. |
| 689 |
* |
| 690 |
* @param string $str String to check. |
| 691 |
* @param string $test Ending to match. |
| 692 |
* |
| 693 |
* @return bool |
| 694 |
*/ |
| 695 |
protected function str_ends_in( $str, $test ) |
| 696 |
{ |
| 697 |
// @codingStandardsIgnoreStart |
| 698 |
// substr_compare() is bugged on 5.5.11: https://3v4l.org/qGYBH |
| 699 |
// return ( 0 === substr_compare( $str, $test, -strlen( $test ) ) ); |
| 700 |
// @codingStandardsIgnoreEnd |
| 701 |
|
| 702 |
$length = strlen( $test ); |
| 703 |
|
| 704 |
return ( substr( $str, -$length, $length ) === $test ); |
| 705 |
} |
| 706 |
} |
| 707 |
|
