| 10 | | class SessionHuman extends SessionContainer |
| 11 | | { |
| 12 | | const int MAX_RELOAD = 10; |
| 13 | | |
| 14 | | const int MAX_TIME = 1800; |
| 15 | | |
| 16 | | const int MIN_TIME = 3; |
| 17 | | |
| 18 | | |
| 19 | | public function writeVerifySession(ServerRequestInterface $request, string $origin = ''): void |
| 20 | | { |
| 21 | | $clientIp = $request->getAttribute('ip_address'); |
| 22 | | $this->set('client', 1, 'human'); |
| 23 | | $this->set('ts', time(), 'human'); |
| 24 | | if (! $this->isOrigin('captcha')) { |
| 25 | | $this->set('origin', $origin, 'human'); |
| 26 | | } |
| 27 | | $this->set('remoteAddress', $clientIp, 'human'); |
| 28 | | } |
| 29 | | |
| 30 | | |
| 31 | | public function writeBotSession(string $origin = ''): void |
| 32 | | { |
| 33 | | $this->set('client', 0, 'human'); |
| 34 | | $this->set('ts', 0, 'human'); |
| 35 | | $this->set('origin', $origin, 'human'); |
| 36 | | } |
| 37 | | |
| 38 | | |
| 39 | | |
| 40 | | |
| 41 | | |
| 42 | | |
| 43 | | public function redirectOnSuspicion( |
| 44 | | ServerRequestInterface $request, |
| 45 | | array $requiredSteps = [], |
| 46 | | string|false $referer = false |
| 47 | | ): bool { |
| 48 | | $path = $request->getUri()->getPath(); |
| 49 | | $sessionId = session_id(); |
| 50 | | $sessionId = $sessionId === false ? '' : $sessionId; |
| 51 | | $refererLabel = is_string($referer) ? $referer : ''; |
| 52 | | if (! $this->isOrigin('captcha')) { |
| 53 | | foreach ($requiredSteps as $stepName) { |
| 54 | | if (!$this->hasStep($stepName)) { |
| 55 | | \App::$log->notice( |
| 56 | | "[Human " . $sessionId . "] Missing step $stepName on " . $path . " (referer: " . $refererLabel . ")" |
| 57 | | ); |
| 58 | | $this->writeRedirectCaptcha($path, $stepName); |
| 59 | | return true; |
| 60 | | } |
| 61 | | if ($this->hasStepMaxReload($stepName)) { |
| 62 | | \App::$log->notice( |
| 63 | | "[Human " . $sessionId . "] Exceeded max reload for step $stepName on " . $path |
| 64 | | ); |
| 65 | | $this->writeRedirectCaptcha($path, ($referer !== false) ? $referer : end($requiredSteps)); |
| 66 | | return true; |
| 67 | | } |
| 68 | | } |
| 69 | | $clientIpAddress = $request->getAttribute('ip_address'); |
| 70 | | if (!$this->has('remoteAddress', 'human') || $clientIpAddress != $this->get('remoteAddress', 'human')) { |
| 71 | | \App::$log->error("[Human " . $sessionId . "] Missing remote address " . $clientIpAddress); |
| 72 | | $this->writeRedirectCaptcha($path, $referer); |
| 73 | | return true; |
| 74 | | } |
| 75 | | } |
| 76 | | if (!$this->isVerified()) { |
| 77 | | \App::$log->error( |
| 78 | | "[Human " . $sessionId . "] Missing session on " . $path . " (referer: " . $refererLabel . ")" |
| 79 | | ); |
| 80 | | $this->writeRedirectCaptcha($path, $referer); |
| 81 | | return true; |
| 82 | | } |
| 83 | | $this->writeRedirectCaptcha($path, ($referer !== false) ? $referer : end($requiredSteps)); |
| 84 | | return false; |
| 85 | | } |
| 86 | | |
| 87 | | |
| 88 | | public function isOverAged(): bool |
| 89 | | { |
| 90 | | if (!$this->has('ts', 'human') || time() > ($this->get('ts', 'human') + self::MAX_TIME)) { |
| 91 | | return true; |
| 92 | | } |
| 93 | | return false; |
| 94 | | } |
| 95 | | |
| 96 | | |
| 97 | | public function isUnderAged(): bool |
| 98 | | { |
| 99 | | if (!$this->has('ts', 'human') || time() < ($this->get('ts', 'human') + self::MIN_TIME)) { |
| 100 | | return true; |
| 101 | | } |
| 102 | | return false; |
| 103 | | } |
| 104 | | |
| 105 | | |
| 106 | | public function addStep(string $stepName): void |
| 107 | | { |
| 108 | | if (!$this->has('step', 'human')) { |
| 109 | | $this->set('step', array(), 'human'); |
| 110 | | } |
| 111 | | if (!array_key_exists($stepName, $this->get('step', 'human'))) { |
| 112 | | $stepCount = 1; |
| 113 | | } else { |
| 114 | | $stepCount = $this->get('step', 'human')[$stepName] + 1; |
| 115 | | } |
| 116 | | $step = $this->get('step', 'human'); |
| 117 | | $step[$stepName] = $stepCount; |
| 118 | | $this->setGroup(array('human' => array('step' => $step))); |
| 119 | | } |
| 120 | | |
| 121 | | public function hasStep(string $stepName): bool |
| 122 | | { |
| 123 | | if ($this->has('step', 'human') && array_key_exists($stepName, $this->get('step', 'human'))) { |
| 124 | | return true; |
| 125 | | } |
| 126 | | return false; |
| 127 | | } |
| 128 | | |
| 129 | | public function hasStepMaxReload(string $stepName): bool |
| 130 | | { |
| 131 | | if ( |
| 132 | | $this->has('step', 'human') && |
| 133 | | array_key_exists($stepName, $this->get('step', 'human')) && |
| 134 | | $this->get('step', 'human')[$stepName] > self::MAX_RELOAD |
| 135 | | ) { |
| 136 | | return true; |
| 137 | | } |
| 138 | | return false; |
| 139 | | } |
| 140 | | |
| 141 | | public function isVerified(): bool |
| 142 | | { |
| 143 | | if ($this->has('client', 'human') && $this->get('client', 'human')) { |
| 144 | | return true; |
| 145 | | } |
| 146 | | return false; |
| 147 | | } |
| 148 | | |
| 149 | | protected function isOrigin(string $originName): bool |
| 150 | | { |
| 151 | | if ($this->has('origin', 'human') && $originName == $this->get('origin', 'human')) { |
| 152 | | return true; |
| 153 | | } |
| 154 | | return false; |
| 155 | | } |
| 156 | | |
| 157 | | protected function writeRedirectCaptcha(string $path, string|false $referer = false): void |
| 158 | | { |
| 159 | | if (false === $referer) { |
| 160 | | $referer = basename($path); |
| 161 | | } |
| 162 | | $referer = array('human' => array('referer' => $referer)); |
| 163 | | $this->setGroup($referer); |
| 164 | | } |
| 165 | | } |