vendor/skorp/detect-incompatible-samesite-useragents/src/SameSite.php line 25

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  1. <?php
  3. namespace Skorp\Dissua;
  5. class SameSite {
  7. protected $userAgent = null;
  9. public function __construct($userAgent=null) {
  10. if($userAgent != null)
  11. $this->userAgent = $userAgent;
  12. }
  15. public static function handle($userAgent = null) : bool {
  16. return (new self($userAgent))->shouldSendSameSiteNone();
  17. }
  20. public function shouldSendSameSiteNone() : bool {
  21. return !$this->isSameSiteNoneIncompatible();
  22. }
  25. protected function isSameSiteNoneIncompatible() : bool {
  26. return $this->hasWebKitSameSiteBug() || $this->dropsUnrecognizedSameSiteCookies();
  27. }
  30. protected function hasWebKitSameSiteBug() : bool {
  31. return $this->isIosVersion(12) ||
  32. ($this->isMacosxVersion(10, 14) &&
  33. ($this->isSafari() || $this->isMacEmbeddedBrowser()));
  34. }
  37. protected function dropsUnrecognizedSameSiteCookies() : bool {
  38. if ($this->isUcBrowser())
  39. return !$this->isUcBrowserVersionAtLeast(12, 13, 2);
  41. return $this->isChromiumBased() &&
  42. $this->isChromiumVersionAtLeast(51) &&
  43. !$this->isChromiumVersionAtLeast(67);
  44. }
  47. protected function isChromiumBased() : bool {
  48. $regex = '/Chrom(e|ium)/';
  49. return preg_match($regex,$this->userAgent);
  50. }
  53. protected function isChromiumVersionAtLeast($version) : bool {
  54. $regex = '/Chrom[^ \/]+\/(\d+)[\.\d]*/';
  55. preg_match($regex,$this->userAgent,$matches);
  56. return ($matches[1]??null) >= $version;
  57. }
  60. protected function isIosVersion($major) : bool {
  61. $regex = "/\(iP.+; CPU .*OS (\d+)[_\d]*.*\) AppleWebKit\//";
  62. preg_match($regex,$this->userAgent,$matches);
  63. return ($matches[1]??null) == $major;
  64. }
  67. protected function isMacosxVersion($major,$minor) : bool {
  68. $regex = "/\(Macintosh;.*Mac OS X (\d+)_(\d+)[_\d]*.*\) AppleWebKit\//";
  69. preg_match($regex,$this->userAgent,$matches);
  71. return (($matches[1]??null) == $major && (($matches[2]??null) == $minor));
  72. }
  75. protected function isSafari() : bool {
  76. $regex = "/Version\/.* Safari\//";
  77. return preg_match($regex,$this->userAgent) && ! $this->isChromiumBased();
  78. }
  81. protected function isMacEmbeddedBrowser() : bool {
  82. $regex = "#/^Mozilla\/[\.\d]+ \(Macintosh;.*Mac OS X [_\d]+\) AppleWebKit\/[\.\d]+ \(KHTML, like Gecko\)$#";
  83. return preg_match($regex,$this->userAgent);
  84. }
  87. protected function isUcBrowser() : bool {
  88. $regex = '/UCBrowser\//';
  89. return preg_match($regex,$this->userAgent);
  90. }
  93. protected function isUcBrowserVersionAtLeast($major,$minor,$build) : bool {
  95. $regex = "/UCBrowser\/(\d+)\.(\d+)\.(\d+)[\.\d]* /";
  97. preg_match($regex,$this->userAgent,$matches);
  99. $major_version = $matches[1] ?? null;
  100. $minor_version = $matches[2] ?? null;
  101. $build_version = $matches[3] ?? null;
  103. if ($major_version != $major)
  104. return $major_version > $major;
  105. if ($minor_version != $minor)
  106. return $minor_version > $minor;
  107. return $build_version >= $build;
  108. }
  111. public function setUserAgent($useragent) {
  112. $this->userAgent = $useragent;
  113. }
  114. }