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Cater for SameSite=None incompatible browsers
Not all browsers are compatible with SameSite=None. This will handle those that are not compatible and leave the parameter blank.
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131 changes: 131 additions & 0 deletions
131
samesite_cookies/vendor/uvii/samesitenone/src/SameSiteNone.php
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| <?php | ||
| declare(strict_types = 1); | ||
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| namespace Uvii; | ||
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| class SameSiteNone | ||
| { | ||
| public $uaStr = ''; | ||
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| public function __construct(String $uaStr = '') { | ||
| $this->uaStr = $uaStr; | ||
| } | ||
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| public static function isSafe(String $useragent): bool | ||
| { | ||
| return ((new self($useragent))->shouldSendSameSiteNone()); | ||
| } | ||
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| function shouldSendSameSiteNone(): bool | ||
| { | ||
| return !$this->isSameSiteNoneIncompatible(); | ||
| } | ||
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| function isSameSiteNoneIncompatible(): bool | ||
| { | ||
| return $this->hasWebKitSameSiteBug() || | ||
| $this->dropsUnrecognizedSameSiteCookies(); | ||
| } | ||
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| function hasWebKitSameSiteBug(): bool | ||
| { | ||
| return $this->isIosVersion(12) || | ||
| ($this->isMacosxVersion(10,14) && | ||
| ($this->isSafari() || | ||
| $this->isMacEmbeddedBrowser() | ||
| ) | ||
| ); | ||
| } | ||
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| function dropsUnrecognizedSameSiteCookies(): bool | ||
| { | ||
| if ($this->isUcBrowser()) { | ||
| return !$this->isUcBrowserVersionAtLeast(12,13,2); | ||
| } | ||
| return $this->isChromiumBased() && | ||
| $this->isChromiumVersionAtLeast(51) && | ||
| !$this->isChromiumVersionAtLeast(67); | ||
| } | ||
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| public function isIosVersion(int $major): bool | ||
| { | ||
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| $regex = "/\(iP.+; CPU .*OS (\d+)[_\d]*.*\) AppleWebKit\//"; | ||
| $ver = 0; | ||
| if (preg_match($regex, $this->uaStr, $matches)) { | ||
| $ver = intval($matches[1]); | ||
| } | ||
| return $ver === $major; | ||
| } | ||
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| public function isMacosxVersion(int $major, int $minor): bool | ||
| { | ||
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| $regex = "/\(Macintosh;.*Mac OS X (\d+)_(\d+)[_\d]*.*\) AppleWebKit\//"; | ||
| $major_version = 0; | ||
| $minor_version = 0; | ||
| if (preg_match($regex, $this->uaStr, $matches)) { | ||
| $major_version = intval($matches[1]); | ||
| $minor_version = intval($matches[2]); | ||
| } | ||
| return ($major_version === $major) && | ||
| ($minor_version === $minor); | ||
| } | ||
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| public function isSafari(): bool | ||
| { | ||
| $regex = "/Version\/.* Safari\//"; | ||
| return (1 === preg_match($regex, $this->uaStr)) && | ||
| !$this->isChromiumBased(); | ||
| } | ||
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| public function isMacEmbeddedBrowser(): bool | ||
| { | ||
| $regex = "/^Mozilla\/[\.\d]+ \(Macintosh;.*Mac OS X [_\d]+\) AppleWebKit\/[\.\d]+ \(KHTML, like Gecko\)$/"; | ||
| return (1 === preg_match($regex, $this->uaStr)); | ||
| } | ||
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| public function isChromiumBased(): bool | ||
| { | ||
| $regex = "/Chrom(e|ium)/"; | ||
| return (1 === preg_match($regex, $this->uaStr)); | ||
| } | ||
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| public function isChromiumVersionAtLeast(int $major): bool | ||
| { | ||
| $regex = "/Chrom[^ \/]+\/(\d+)[\.\d]*/"; | ||
| $ver = 0; | ||
| if (preg_match($regex, $this->uaStr, $matches)) { | ||
| $ver = intval($matches[1]); | ||
| } | ||
| return $ver >= $major; | ||
| } | ||
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| public function isUcBrowser(): bool | ||
| { | ||
| $regex = "/UCBrowser/"; | ||
| return (1 === preg_match($regex, $this->uaStr)) ? true: false; | ||
| } | ||
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| public function isUcBrowserVersionAtLeast(int $major, int $minor, int $build): bool | ||
| { | ||
| $regex = "/UCBrowser\/(\d+)\.(\d+)\.(\d+)[\.\d]* /"; | ||
| $major_version = 0; | ||
| $minor_version = 0; | ||
| $build_version = 0; | ||
| if (preg_match($regex, $this->uaStr, $matches)) { | ||
| $major_version = intval($matches[1]); | ||
| $minor_version = intval($matches[2]); | ||
| $build_version = intval($matches[3]); | ||
| } | ||
| if ($major_version != $major) { | ||
| return $major_version > $major; | ||
| } | ||
| if ($minor_version != $minor) { | ||
| return $minor_version > $minor; | ||
| } | ||
| return $build_version >= $build; | ||
| } | ||
| } | ||
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