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PHP Cross Reference of Joomla 4.2.2 documentation |
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1 <?php 2 3 /** 4 * Joomla! Content Management System 5 * 6 * @copyright (C) 2005 Open Source Matters, Inc. <https://www.joomla.org> 7 * @license GNU General Public License version 2 or later; see LICENSE.txt 8 */ 9 10 namespace Joomla\CMS\Environment; 11 12 // phpcs:disable PSR1.Files.SideEffects 13 \defined('JPATH_PLATFORM') or die; 14 // phpcs:enable PSR1.Files.SideEffects 15 16 /** 17 * Browser class, provides capability information about the current web client. 18 * 19 * Browser identification is performed by examining the HTTP_USER_AGENT 20 * environment variable provided by the web server. 21 * 22 * This class has many influences from the lib/Browser.php code in 23 * version 3 of Horde by Chuck Hagenbuch and Jon Parise. 24 * 25 * @since 1.7.0 26 */ 27 class Browser 28 { 29 /** 30 * @var integer Major version number 31 * @since 3.0.0 32 */ 33 protected $majorVersion = 0; 34 35 /** 36 * @var integer Minor version number 37 * @since 3.0.0 38 */ 39 protected $minorVersion = 0; 40 41 /** 42 * @var string Browser name. 43 * @since 3.0.0 44 */ 45 protected $browser = ''; 46 47 /** 48 * @var string Full user agent string. 49 * @since 3.0.0 50 */ 51 protected $agent = ''; 52 53 /** 54 * @var string Lower-case user agent string 55 * @since 3.0.0 56 */ 57 protected $lowerAgent = ''; 58 59 /** 60 * @var string HTTP_ACCEPT string. 61 * @since 3.0.0 62 */ 63 protected $accept = ''; 64 65 /** 66 * @var array Parsed HTTP_ACCEPT string 67 * @since 3.0.0 68 */ 69 protected $acceptParsed = array(); 70 71 /** 72 * @var string Platform the browser is running on 73 * @since 3.0.0 74 */ 75 protected $platform = ''; 76 77 /** 78 * @var array Known robots. 79 * @since 3.0.0 80 */ 81 protected $robots = array( 82 'Googlebot\/', 83 'Googlebot-Mobile', 84 'Googlebot-Image', 85 'Googlebot-News', 86 'Googlebot-Video', 87 'AdsBot-Google([^-]|$)', 88 'AdsBot-Google-Mobile', 89 'Feedfetcher-Google', 90 'Mediapartners-Google', 91 'Mediapartners \(Googlebot\)', 92 'APIs-Google', 93 'bingbot', 94 'Slurp', 95 '[wW]get', 96 'curl', 97 'LinkedInBot', 98 'Python-urllib', 99 'python-requests', 100 'libwww', 101 'httpunit', 102 'nutch', 103 'Go-http-client', 104 'phpcrawl', 105 'msnbot', 106 'jyxobot', 107 'FAST-WebCrawler', 108 'FAST Enterprise Crawler', 109 'BIGLOTRON', 110 'Teoma', 111 'convera', 112 'seekbot', 113 'Gigabot', 114 'Gigablast', 115 'exabot', 116 'ia_archiver', 117 'GingerCrawler', 118 'webmon ', 119 'HTTrack', 120 'grub.org', 121 'UsineNouvelleCrawler', 122 'antibot', 123 'netresearchserver', 124 'speedy', 125 'fluffy', 126 'bibnum.bnf', 127 'findlink', 128 'msrbot', 129 'panscient', 130 'yacybot', 131 'AISearchBot', 132 'ips-agent', 133 'tagoobot', 134 'MJ12bot', 135 'woriobot', 136 'yanga', 137 'buzzbot', 138 'mlbot', 139 'YandexBot', 140 'yandex.com\/bots', 141 'purebot', 142 'Linguee Bot', 143 'CyberPatrol', 144 'voilabot', 145 'Baiduspider', 146 'citeseerxbot', 147 'spbot', 148 'twengabot', 149 'postrank', 150 'turnitinbot', 151 'scribdbot', 152 'page2rss', 153 'sitebot', 154 'linkdex', 155 'Adidxbot', 156 'blekkobot', 157 'ezooms', 158 'dotbot', 159 'Mail.RU_Bot', 160 'discobot', 161 'heritrix', 162 'findthatfile', 163 'europarchive.org', 164 'NerdByNature.Bot', 165 'sistrix crawler', 166 'Ahrefs(Bot|SiteAudit)', 167 'fuelbot', 168 'CrunchBot', 169 'centurybot9', 170 'IndeedBot', 171 'mappydata', 172 'woobot', 173 'ZoominfoBot', 174 'PrivacyAwareBot', 175 'Multiviewbot', 176 'SWIMGBot', 177 'Grobbot', 178 'eright', 179 'Apercite', 180 'semanticbot', 181 'Aboundex', 182 'domaincrawler', 183 'wbsearchbot', 184 'summify', 185 'CCBot', 186 'edisterbot', 187 'seznambot', 188 'ec2linkfinder', 189 'gslfbot', 190 'aiHitBot', 191 'intelium_bot', 192 'facebookexternalhit', 193 'Yeti', 194 'RetrevoPageAnalyzer', 195 'lb-spider', 196 'Sogou', 197 'lssbot', 198 'careerbot', 199 'wotbox', 200 'wocbot', 201 'ichiro', 202 'DuckDuckBot', 203 'lssrocketcrawler', 204 'drupact', 205 'webcompanycrawler', 206 'acoonbot', 207 'openindexspider', 208 'gnam gnam spider', 209 'web-archive-net.com.bot', 210 'backlinkcrawler', 211 'coccoc', 212 'integromedb', 213 'content crawler spider', 214 'toplistbot', 215 'it2media-domain-crawler', 216 'ip-web-crawler.com', 217 'siteexplorer.info', 218 'elisabot', 219 'proximic', 220 'changedetection', 221 'arabot', 222 'WeSEE:Search', 223 'niki-bot', 224 'CrystalSemanticsBot', 225 'rogerbot', 226 '360Spider', 227 'psbot', 228 'InterfaxScanBot', 229 'CC Metadata Scaper', 230 'g00g1e.net', 231 'GrapeshotCrawler', 232 'urlappendbot', 233 'brainobot', 234 'fr-crawler', 235 'binlar', 236 'SimpleCrawler', 237 'Twitterbot', 238 'cXensebot', 239 'smtbot', 240 'bnf.fr_bot', 241 'A6-Indexer', 242 'ADmantX', 243 'Facebot', 244 'OrangeBot\/', 245 'memorybot', 246 'AdvBot', 247 'MegaIndex', 248 'SemanticScholarBot', 249 'ltx71', 250 'nerdybot', 251 'xovibot', 252 'BUbiNG', 253 'Qwantify', 254 'archive.org_bot', 255 'Applebot', 256 'TweetmemeBot', 257 'crawler4j', 258 'findxbot', 259 'S[eE][mM]rushBot', 260 'yoozBot', 261 'lipperhey', 262 'Y!J', 263 'Domain Re-Animator Bot', 264 'AddThis', 265 'Screaming Frog SEO Spider', 266 'MetaURI', 267 'Scrapy', 268 'Livelap[bB]ot', 269 'OpenHoseBot', 270 'CapsuleChecker', 271 '[email protected]', 272 'IstellaBot', 273 'DeuSu\/', 274 'betaBot', 275 'Cliqzbot\/', 276 'MojeekBot\/', 277 'netEstate NE Crawler', 278 'SafeSearch microdata crawler', 279 'Gluten Free Crawler\/', 280 'Sonic', 281 'Sysomos', 282 'Trove', 283 'deadlinkchecker', 284 'Slack-ImgProxy', 285 'Embedly', 286 'RankActiveLinkBot', 287 'iskanie', 288 'SafeDNSBot', 289 'SkypeUriPreview', 290 'Veoozbot', 291 'Slackbot', 292 'redditbot', 293 'datagnionbot', 294 'Google-Adwords-Instant', 295 'adbeat_bot', 296 'WhatsApp', 297 'contxbot', 298 'pinterest', 299 'electricmonk', 300 'GarlikCrawler', 301 'BingPreview\/', 302 'vebidoobot', 303 'FemtosearchBot', 304 'Yahoo Link Preview', 305 'MetaJobBot', 306 'DomainStatsBot', 307 'mindUpBot', 308 'Daum\/', 309 'Jugendschutzprogramm-Crawler', 310 'Xenu Link Sleuth', 311 'Pcore-HTTP', 312 'moatbot', 313 'KosmioBot', 314 'pingdom', 315 'PhantomJS', 316 'Gowikibot', 317 'PiplBot', 318 'Discordbot', 319 'TelegramBot', 320 'Jetslide', 321 'newsharecounts', 322 'James BOT', 323 'Barkrowler', 324 'TinEye', 325 'SocialRankIOBot', 326 'trendictionbot', 327 'Ocarinabot', 328 'epicbot', 329 'Primalbot', 330 'DuckDuckGo-Favicons-Bot', 331 'GnowitNewsbot', 332 'Leikibot', 333 'LinkArchiver', 334 'YaK\/', 335 'PaperLiBot', 336 'Digg Deeper', 337 'dcrawl', 338 'Snacktory', 339 'AndersPinkBot', 340 'Fyrebot', 341 'EveryoneSocialBot', 342 'Mediatoolkitbot', 343 'Luminator-robots', 344 'ExtLinksBot', 345 'SurveyBot', 346 'NING\/', 347 'okhttp', 348 'Nuzzel', 349 'omgili', 350 'PocketParser', 351 'YisouSpider', 352 'um-LN', 353 'ToutiaoSpider', 354 'MuckRack', 355 'Jamie\'s Spider', 356 'AHC\/', 357 'NetcraftSurveyAgent', 358 'Laserlikebot', 359 'Apache-HttpClient', 360 'AppEngine-Google', 361 'Jetty', 362 'Upflow', 363 'Thinklab', 364 'Traackr.com', 365 'Twurly', 366 'Mastodon', 367 'http_get', 368 'DnyzBot', 369 'botify', 370 '007ac9 Crawler', 371 'BehloolBot', 372 'BrandVerity', 373 'check_http', 374 'BDCbot', 375 'ZumBot', 376 'EZID', 377 'ICC-Crawler', 378 'ArchiveBot', 379 '^LCC ', 380 'filterdb.iss.net\/crawler', 381 'BLP_bbot', 382 'BomboraBot', 383 'Buck\/', 384 'Companybook-Crawler', 385 'Genieo', 386 'magpie-crawler', 387 'MeltwaterNews', 388 'Moreover', 389 'newspaper\/', 390 'ScoutJet', 391 '(^| )sentry\/', 392 'StorygizeBot', 393 'UptimeRobot', 394 'OutclicksBot', 395 'seoscanners', 396 'Hatena', 397 'Google Web Preview', 398 'MauiBot', 399 'AlphaBot', 400 'SBL-BOT', 401 'IAS crawler', 402 'adscanner', 403 'Netvibes', 404 'acapbot', 405 'Baidu-YunGuanCe', 406 'bitlybot', 407 'blogmuraBot', 408 'Bot.AraTurka.com', 409 'bot-pge.chlooe.com', 410 'BoxcarBot', 411 'BTWebClient', 412 'ContextAd Bot', 413 'Digincore bot', 414 'Disqus', 415 'Feedly', 416 'Fetch\/', 417 'Fever', 418 'Flamingo_SearchEngine', 419 'FlipboardProxy', 420 'g2reader-bot', 421 'imrbot', 422 'K7MLWCBot', 423 'Kemvibot', 424 'Landau-Media-Spider', 425 'linkapediabot', 426 'vkShare', 427 'Siteimprove.com', 428 'BLEXBot\/', 429 'DareBoost', 430 'ZuperlistBot\/', 431 'Miniflux\/', 432 'Feedspotbot\/', 433 'Diffbot\/', 434 'SEOkicks', 435 'tracemyfile', 436 'Nimbostratus-Bot', 437 'zgrab', 438 'PR-CY.RU', 439 'AdsTxtCrawler', 440 'Datafeedwatch', 441 'Zabbix', 442 'TangibleeBot', 443 'google-xrawler', 444 'axios', 445 'Amazon CloudFront', 446 'Pulsepoint', 447 ); 448 449 /** 450 * @var boolean Is this a mobile browser? 451 * @since 3.0.0 452 */ 453 protected $mobile = false; 454 455 /** 456 * List of viewable image MIME subtypes. 457 * This list of viewable images works for IE and Netscape/Mozilla. 458 * 459 * @var array 460 * @since 3.0.0 461 */ 462 protected $images = array('jpeg', 'gif', 'png', 'pjpeg', 'x-png', 'bmp'); 463 464 /** 465 * @var array Browser instances container. 466 * @since 1.7.3 467 */ 468 protected static $instances = array(); 469 470 /** 471 * Create a browser instance (constructor). 472 * 473 * @param string $userAgent The browser string to parse. 474 * @param string $accept The HTTP_ACCEPT settings to use. 475 * 476 * @since 1.7.0 477 */ 478 public function __construct($userAgent = null, $accept = null) 479 { 480 $this->match($userAgent, $accept); 481 } 482 483 /** 484 * Returns the global Browser object, only creating it 485 * if it doesn't already exist. 486 * 487 * @param string $userAgent The browser string to parse. 488 * @param string $accept The HTTP_ACCEPT settings to use. 489 * 490 * @return Browser The Browser object. 491 * 492 * @since 1.7.0 493 */ 494 public static function getInstance($userAgent = null, $accept = null) 495 { 496 $signature = serialize(array($userAgent, $accept)); 497 498 if (empty(self::$instances[$signature])) { 499 self::$instances[$signature] = new static($userAgent, $accept); 500 } 501 502 return self::$instances[$signature]; 503 } 504 505 /** 506 * Parses the user agent string and inititializes the object with 507 * all the known features and quirks for the given browser. 508 * 509 * @param string $userAgent The browser string to parse. 510 * @param string $accept The HTTP_ACCEPT settings to use. 511 * 512 * @return void 513 * 514 * @since 1.7.0 515 */ 516 public function match($userAgent = null, $accept = null) 517 { 518 // Set our agent string. 519 if (\is_null($userAgent)) { 520 if (isset($_SERVER['HTTP_USER_AGENT'])) { 521 $this->agent = trim($_SERVER['HTTP_USER_AGENT']); 522 } 523 } else { 524 $this->agent = $userAgent; 525 } 526 527 $this->lowerAgent = strtolower($this->agent); 528 529 // Set our accept string. 530 if (\is_null($accept)) { 531 if (isset($_SERVER['HTTP_ACCEPT'])) { 532 $this->accept = strtolower(trim($_SERVER['HTTP_ACCEPT'])); 533 } 534 } else { 535 $this->accept = strtolower($accept); 536 } 537 538 if (!empty($this->agent)) { 539 $this->_setPlatform(); 540 541 /* 542 * Determine if mobile. Note: Some Handhelds have their screen resolution in the 543 * user agent string, which we can use to look for mobile agents. 544 */ 545 if ( 546 strpos($this->agent, 'MOT-') !== false 547 || strpos($this->lowerAgent, 'j-') !== false 548 || preg_match('/(mobileexplorer|openwave|opera mini|opera mobi|operamini|avantgo|wap|elaine)/i', $this->agent) 549 || preg_match('/(iPhone|iPod|iPad|Android|Mobile|Phone|BlackBerry|Xiino|Palmscape|palmsource)/i', $this->agent) 550 || preg_match('/(Nokia|Ericsson|docomo|digital paths|portalmmm|CriOS[\/ ]([0-9.]+))/i', $this->agent) 551 || preg_match('/(UP|UP.B|UP.L)/', $this->agent) 552 || preg_match('/; (120x160|240x280|240x320|320x320)\)/', $this->agent) 553 ) { 554 $this->mobile = true; 555 } 556 557 /* 558 * We have to check for Edge as the first browser, because Edge has something like: 559 * Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.79 Safari/537.36 Edge/14.14393 560 */ 561 if (preg_match('|Edge\/([0-9.]+)|', $this->agent, $version)) { 562 $this->setBrowser('edge'); 563 564 if (strpos($version[1], '.') !== false) { 565 list($this->majorVersion, $this->minorVersion) = explode('.', $version[1]); 566 } else { 567 $this->majorVersion = $version[1]; 568 $this->minorVersion = 0; 569 } 570 } elseif (preg_match('|Edg\/([0-9.]+)|', $this->agent, $version)) { 571 /** 572 * We have to check for Edge as the first browser, because Edge has something like: 573 * Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3738.0 Safari/537.36 Edg/75.0.107.0 574 */ 575 $this->setBrowser('edg'); 576 577 list($this->majorVersion, $this->minorVersion) = explode('.', $version[1]); 578 } elseif (preg_match('|Opera[\/ ]([0-9.]+)|', $this->agent, $version)) { 579 $this->setBrowser('opera'); 580 581 list($this->majorVersion, $this->minorVersion) = explode('.', $version[1]); 582 583 /* 584 * Due to changes in Opera UA, we need to check Version/xx.yy, 585 * but only if version is > 9.80. See: http://dev.opera.com/articles/view/opera-ua-string-changes/ 586 */ 587 if ($this->majorVersion == 9 && $this->minorVersion >= 80) { 588 $this->identifyBrowserVersion(); 589 } 590 } elseif (preg_match('/OPR[\/ ]([0-9.]+)/', $this->agent, $version)) { 591 // Opera 15+ 592 $this->setBrowser('opera'); 593 594 list($this->majorVersion, $this->minorVersion) = explode('.', $version[1]); 595 } elseif ( 596 preg_match('/Chrome[\/ ]([0-9.]+)/i', $this->agent, $version) 597 || preg_match('/CrMo[\/ ]([0-9.]+)/i', $this->agent, $version) 598 || preg_match('/CriOS[\/ ]([0-9.]+)/i', $this->agent, $version) 599 ) { 600 $this->setBrowser('chrome'); 601 602 list($this->majorVersion, $this->minorVersion) = explode('.', $version[1]); 603 } elseif ( 604 strpos($this->lowerAgent, 'elaine/') !== false 605 || strpos($this->lowerAgent, 'palmsource') !== false 606 || strpos($this->lowerAgent, 'digital paths') !== false 607 ) { 608 $this->setBrowser('palm'); 609 } elseif ( 610 preg_match('/MSIE ([0-9.]+)/i', $this->agent, $version) 611 || preg_match('/IE ([0-9.]+)/i', $this->agent, $version) 612 || preg_match('/Internet Explorer[\/ ]([0-9.]+)/i', $this->agent, $version) 613 || preg_match('/Trident\/.*rv:([0-9.]+)/i', $this->agent, $version) 614 ) { 615 $this->setBrowser('msie'); 616 617 // Special case for IE 11+ 618 if (strpos($version[0], 'Trident') !== false && strpos($version[0], 'rv:') !== false) { 619 preg_match('|rv:([0-9.]+)|', $this->agent, $version); 620 } 621 622 if (strpos($version[1], '.') !== false) { 623 list($this->majorVersion, $this->minorVersion) = explode('.', $version[1]); 624 } else { 625 $this->majorVersion = $version[1]; 626 $this->minorVersion = 0; 627 } 628 } elseif (preg_match('|amaya\/([0-9.]+)|', $this->agent, $version)) { 629 $this->setBrowser('amaya'); 630 $this->majorVersion = $version[1]; 631 632 if (isset($version[2])) { 633 $this->minorVersion = $version[2]; 634 } 635 } elseif (preg_match('|ANTFresco\/([0-9]+)|', $this->agent, $version)) { 636 $this->setBrowser('fresco'); 637 } elseif (strpos($this->lowerAgent, 'avantgo') !== false) { 638 $this->setBrowser('avantgo'); 639 } elseif (preg_match('|[Kk]onqueror\/([0-9]+)|', $this->agent, $version) || preg_match('|Safari/([0-9]+)\.?([0-9]+)?|', $this->agent, $version)) { 640 // Konqueror and Apple's Safari both use the KHTML rendering engine. 641 $this->setBrowser('konqueror'); 642 $this->majorVersion = $version[1]; 643 644 if (isset($version[2])) { 645 $this->minorVersion = $version[2]; 646 } 647 648 if (strpos($this->agent, 'Safari') !== false && $this->majorVersion >= 60) { 649 // Safari. 650 $this->setBrowser('safari'); 651 $this->identifyBrowserVersion(); 652 } 653 } elseif (preg_match('|Firefox\/([0-9.]+)|', $this->agent, $version)) { 654 $this->setBrowser('firefox'); 655 656 list($this->majorVersion, $this->minorVersion) = explode('.', $version[1]); 657 } elseif (preg_match('|Lynx\/([0-9]+)|', $this->agent, $version)) { 658 $this->setBrowser('lynx'); 659 } elseif (preg_match('|Links \(([0-9]+)|', $this->agent, $version)) { 660 $this->setBrowser('links'); 661 } elseif (preg_match('|HotJava\/([0-9]+)|', $this->agent, $version)) { 662 $this->setBrowser('hotjava'); 663 } elseif (strpos($this->agent, 'UP/') !== false || strpos($this->agent, 'UP.B') !== false || strpos($this->agent, 'UP.L') !== false) { 664 $this->setBrowser('up'); 665 } elseif (strpos($this->agent, 'Xiino/') !== false) { 666 $this->setBrowser('xiino'); 667 } elseif (strpos($this->agent, 'Palmscape/') !== false) { 668 $this->setBrowser('palmscape'); 669 } elseif (strpos($this->agent, 'Nokia') !== false) { 670 $this->setBrowser('nokia'); 671 } elseif (strpos($this->agent, 'Ericsson') !== false) { 672 $this->setBrowser('ericsson'); 673 } elseif (strpos($this->lowerAgent, 'wap') !== false) { 674 $this->setBrowser('wap'); 675 } elseif (strpos($this->lowerAgent, 'docomo') !== false || strpos($this->lowerAgent, 'portalmmm') !== false) { 676 $this->setBrowser('imode'); 677 } elseif (strpos($this->agent, 'BlackBerry') !== false) { 678 $this->setBrowser('blackberry'); 679 } elseif (strpos($this->agent, 'MOT-') !== false) { 680 $this->setBrowser('motorola'); 681 } elseif (strpos($this->lowerAgent, 'j-') !== false) { 682 $this->setBrowser('mml'); 683 } elseif (preg_match('|Mozilla\/([0-9.]+)|', $this->agent, $version)) { 684 $this->setBrowser('mozilla'); 685 686 list($this->majorVersion, $this->minorVersion) = explode('.', $version[1]); 687 } 688 } 689 } 690 691 /** 692 * Match the platform of the browser. 693 * 694 * This is a pretty simplistic implementation, but it's intended 695 * to let us tell what line breaks to send, so it's good enough 696 * for its purpose. 697 * 698 * @return void 699 * 700 * @since 1.7.0 701 */ 702 protected function _setPlatform() 703 { 704 if (strpos($this->lowerAgent, 'wind') !== false) { 705 $this->platform = 'win'; 706 } elseif (strpos($this->lowerAgent, 'mac') !== false) { 707 $this->platform = 'mac'; 708 } else { 709 $this->platform = 'unix'; 710 } 711 } 712 713 /** 714 * Return the currently matched platform. 715 * 716 * @return string The user's platform. 717 * 718 * @since 1.7.0 719 */ 720 public function getPlatform() 721 { 722 return $this->platform; 723 } 724 725 /** 726 * Set browser version, not by engine version 727 * Fallback to use when no other method identify the engine version 728 * 729 * @return void 730 * 731 * @since 1.7.0 732 */ 733 protected function identifyBrowserVersion() 734 { 735 if (preg_match('|Version[/ ]([0-9.]+)|', $this->agent, $version)) { 736 list($this->majorVersion, $this->minorVersion) = explode('.', $version[1]); 737 738 return; 739 } 740 741 // Can't identify browser version 742 $this->majorVersion = 0; 743 $this->minorVersion = 0; 744 } 745 746 /** 747 * Sets the current browser. 748 * 749 * @param string $browser The browser to set as current. 750 * 751 * @return void 752 * 753 * @since 1.7.0 754 */ 755 public function setBrowser($browser) 756 { 757 $this->browser = $browser; 758 } 759 760 /** 761 * Retrieve the current browser. 762 * 763 * @return string The current browser. 764 * 765 * @since 1.7.0 766 */ 767 public function getBrowser() 768 { 769 return $this->browser; 770 } 771 772 /** 773 * Retrieve the current browser's major version. 774 * 775 * @return integer The current browser's major version 776 * 777 * @since 1.7.0 778 */ 779 public function getMajor() 780 { 781 return $this->majorVersion; 782 } 783 784 /** 785 * Retrieve the current browser's minor version. 786 * 787 * @return integer The current browser's minor version. 788 * 789 * @since 1.7.0 790 */ 791 public function getMinor() 792 { 793 return $this->minorVersion; 794 } 795 796 /** 797 * Retrieve the current browser's version. 798 * 799 * @return string The current browser's version. 800 * 801 * @since 1.7.0 802 */ 803 public function getVersion() 804 { 805 return $this->majorVersion . '.' . $this->minorVersion; 806 } 807 808 /** 809 * Return the full browser agent string. 810 * 811 * @return string The browser agent string 812 * 813 * @since 1.7.0 814 */ 815 public function getAgentString() 816 { 817 return $this->agent; 818 } 819 820 /** 821 * Returns the server protocol in use on the current server. 822 * 823 * @return string The HTTP server protocol version. 824 * 825 * @since 1.7.0 826 */ 827 public function getHTTPProtocol() 828 { 829 if (isset($_SERVER['SERVER_PROTOCOL'])) { 830 if (($pos = strrpos($_SERVER['SERVER_PROTOCOL'], '/'))) { 831 return substr($_SERVER['SERVER_PROTOCOL'], $pos + 1); 832 } 833 } 834 } 835 836 /** 837 * Determines if a browser can display a given MIME type. 838 * 839 * Note that image/jpeg and image/pjpeg *appear* to be the same 840 * entity, but Mozilla doesn't seem to want to accept the latter. 841 * For our purposes, we will treat them the same. 842 * 843 * @param string $mimetype The MIME type to check. 844 * 845 * @return boolean True if the browser can display the MIME type. 846 * 847 * @since 1.7.0 848 */ 849 public function isViewable($mimetype) 850 { 851 $mimetype = strtolower($mimetype); 852 list($type, $subtype) = explode('/', $mimetype); 853 854 if (!empty($this->accept)) { 855 $wildcard_match = false; 856 857 if (strpos($this->accept, $mimetype) !== false) { 858 return true; 859 } 860 861 if (strpos($this->accept, '*/*') !== false) { 862 $wildcard_match = true; 863 864 if ($type !== 'image') { 865 return true; 866 } 867 } 868 869 // Deal with Mozilla pjpeg/jpeg issue 870 if ($this->isBrowser('mozilla') && ($mimetype === 'image/pjpeg') && (strpos($this->accept, 'image/jpeg') !== false)) { 871 return true; 872 } 873 874 if (!$wildcard_match) { 875 return false; 876 } 877 } 878 879 if ($type !== 'image') { 880 return false; 881 } 882 883 return \in_array($subtype, $this->images); 884 } 885 886 /** 887 * Determine if the given browser is the same as the current. 888 * 889 * @param string $browser The browser to check. 890 * 891 * @return boolean Is the given browser the same as the current? 892 * 893 * @since 1.7.0 894 */ 895 public function isBrowser($browser) 896 { 897 return $this->browser === $browser; 898 } 899 900 /** 901 * Determines if the browser is a robot or not. 902 * 903 * @return boolean True if browser is a known robot. 904 * 905 * @since 1.7.0 906 */ 907 public function isRobot() 908 { 909 foreach ($this->robots as $robot) { 910 if (preg_match('/' . $robot . '/', $this->agent)) { 911 return true; 912 } 913 } 914 915 return false; 916 } 917 918 /** 919 * Determines if the browser is mobile version or not. 920 * 921 * @return boolean True if browser is a known mobile version. 922 * 923 * @since 1.7.0 924 */ 925 public function isMobile() 926 { 927 return $this->mobile; 928 } 929 }
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