85 lines
3.1 KiB
PHP
85 lines
3.1 KiB
PHP
<?php
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$version = "005";
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$NO_UPLOAD = "0";
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$AUDIO_VIDEO_UPLOAD = "3";
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// InChannelPermissionKey
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$ALLOW_UPLOAD_IN_CHANNEL = 1;
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// Service Type
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$MEDIA_CHANNEL_SERVICE = 1;
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$RECORDING_SERVICE = 2;
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$PUBLIC_SHARING_SERVICE = 3;
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$IN_CHANNEL_PERMISSION = 4;
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function generateRecordingKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs)
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{
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return generateDynamicKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs, $GLOBALS["RECORDING_SERVICE"], array());
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}
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function generateMediaChannelKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs)
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{
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return generateDynamicKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs, $GLOBALS["MEDIA_CHANNEL_SERVICE"], array());
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}
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function generateInChannelPermissionKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs, $permission)
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{
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$extra[$GLOBALS["ALLOW_UPLOAD_IN_CHANNEL"]] = $permission;
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return generateDynamicKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs, $GLOBALS["IN_CHANNEL_PERMISSION"], $extra);
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}
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function generateDynamicKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs, $serviceType, $extra)
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{
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$signature = generateSignature($serviceType, $appID, $appCertificate, $channelName, $uid, $ts, $randomInt, $expiredTs, $extra);
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$content = packContent($serviceType, $signature, hex2bin($appID), $ts, $randomInt, $expiredTs, $extra);
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// echo bin2hex($content);
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return $GLOBALS["version"] . base64_encode($content);
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}
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function generateSignature($serviceType, $appID, $appCertificate, $channelName, $uid, $ts, $salt, $expiredTs, $extra)
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{
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$rawAppID = hex2bin($appID);
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$rawAppCertificate = hex2bin($appCertificate);
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$buffer = pack("S", $serviceType);
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$buffer .= pack("S", strlen($rawAppID)) . $rawAppID;
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$buffer .= pack("I", $ts);
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$buffer .= pack("I", $salt);
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$buffer .= pack("S", strlen($channelName)) . $channelName;
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$buffer .= pack("I", $uid);
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$buffer .= pack("I", $expiredTs);
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$buffer .= pack("S", count($extra));
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foreach ($extra as $key => $value) {
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$buffer .= pack("S", $key);
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$buffer .= pack("S", strlen($value)) . $value;
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}
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return strtoupper(hash_hmac('sha1', $buffer, $rawAppCertificate));
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}
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function packString($value)
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{
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return pack("S", strlen($value)) . $value;
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}
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function packContent($serviceType, $signature, $appID, $ts, $salt, $expiredTs, $extra)
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{
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$buffer = pack("S", $serviceType);
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$buffer .= packString($signature);
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$buffer .= packString($appID);
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$buffer .= pack("I", $ts);
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$buffer .= pack("I", $salt);
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$buffer .= pack("I", $expiredTs);
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$buffer .= pack("S", count($extra));
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foreach ($extra as $key => $value) {
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$buffer .= pack("S", $key);
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$buffer .= packString($value);
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}
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return $buffer;
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}
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?>
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