消息推送ios用了apns，android用的是gcm。推送失敗都會返回無效的token，但是無效的tokne中，能不能區分到哪些是禁止通知，哪些是卸載app導致的呢？

1 APNS PHP 的推送返回錯誤處理

Push.php if (!empty($aMessage['ERRORS'])) {

foreach($aMessage['ERRORS'] as $aError) {

if ($aError['statusCode'] == 0) {

$this->_log("INFO: Message ID {$k} {$sCustomIdentifier} has no error ({$aError['statusCode']}), removing from queue...");

$this->_removeMessageFromQueue($k);

continue 2;

} else if ($aError['statusCode'] > 1 && $aError['statusCode'] <= 8) {

$this->_log("WARNING: Message ID {$k} {$sCustomIdentifier} has an unrecoverable error ({$aError['statusCode']}), removing from queue without retrying...");

$this->_removeMessageFromQueue($k, true);

continue 2;

}

}

if (($nErrors = count($aMessage['ERRORS'])) >= $this->_nSendRetryTimes) {

$this->_log(

"WARNING: Message ID {$k} {$sCustomIdentifier} has {$nErrors} errors, removing from queue..."

);

$this->_removeMessageFromQueue($k, true);

continue;

}

}

通過禁止通知,apns不會報錯，不會將這個token當成無效或錯誤的token。

卸載app，會調用到以下判斷，statusCode等于8if ($aError['statusCode'] > 1 && $aError['statusCode'] <= 8) {

$this->_log("WARNING: Message ID {$k} {$sCustomIdentifier} has an unrecoverable error ({$aError['statusCode']}), removing from queue without retrying...");

$this->_removeMessageFromQueue($k, true);

continue 2;

}

因此，apns應該是可以區分卸載導致的推送失敗，但是禁止通知則無法反應

2 GCM的錯誤判斷代碼分析：

Response.class.php/**

* Returns an array containing invalid registration ids

* They must be removed from DB because the application was uninstalled from the device.

*

* @return array

*/

public function getInvalidRegistrationIds()

{

if ($this->getFailureCount() == 0) {

return array();

}

$filteredResults = array_filter($this->results,

function($result) {

return (isset($result['error'])

&& (($result['error'] == "NotRegistered") || ($result['error'] == "InvalidRegistration")));

});

return array_keys($filteredResults);

}

/**

* Returns an array of registration ids for which you must resend a message (?),

* cause devices aren't available now.

*

* @TODO: check if it be auto sended later

*

* @return array

*/

public function getUnavailableRegistrationIds()

{

if ($this->getFailureCount() == 0) {

return array();

}

$filteredResults = array_filter($this->results,

function($result) {

return (

isset($result['error'])

&&

($result['error'] == "Unavailable")

);

});

return array_keys($filteredResults);

}

如果禁止通知，上述2個方法都不會寫入錯誤token，也就是說禁止通知，token也是有效的，且不會返回錯誤。

如果是卸載app，則會執行到getInvalidRegistrationIds，且$result['error']==NotRegistered

這樣，GCM如果返回的是NotRegistered，則說明是卸載產生的錯誤信息，而禁止通知，GCM是當成正常token發出去的。

通過以上測試，說明apns和gcm對禁止通知都是當成正常token來處理的，而卸載app則會當成無效的token。(卸載后重裝的話，會生成新的token)

總結

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