是否有GCM registrationId模式？ [英] Is there a GCM registrationId pattern?
问题描述
/**
* @author Sebastien Lorber <i>(lorber.sebastien@gmail.com)</i>
*/
public enum EnumDeviceType {
ANDROID {
@Override
public boolean validateDeviceIdentifier(String deviceIdentifier) {
Preconditions.checkArgument( !Strings.isNullOrEmpty(deviceIdentifier) );
return ANDROID_REGISTRATION_ID_PATTERN.matcher(deviceIdentifier).matches();
}
},
IOS {
@Override
public boolean validateDeviceIdentifier(String deviceIdentifier) {
Preconditions.checkArgument( !Strings.isNullOrEmpty(deviceIdentifier) );
return IOS_DEVICE_TOKEN_PATTERN.matcher(deviceIdentifier).matches();
}
},
;
// TODO how do we validate registration Ids
public static final Pattern ANDROID_REGISTRATION_ID_PATTERN = Pattern.compile(".*");
// IOS device token is a 64 HEX string
public static final Pattern IOS_DEVICE_TOKEN_PATTERN = Pattern.compile("[a-fA-F0-9]{64,64}");
public abstract boolean validateDeviceIdentifier(String deviceIdentifier);
public boolean isIos() {
return IOS.equals(this);
}
public boolean isAndroid() {
return ANDROID.equals(this);
}
}
是否有任何已知的图案为GCM registrationId我可以用它来验证应用程序的registrationId有一个正确的形状？ 我只是想知道哪些字符它的范围，这是最低和最高为例大小......或任何其他资料...
Is there any known pattern for the GCM registrationId i can use to validate on application that the registrationId has a correct shape? I would just like to know which range of chars it has, which is the minimum and maximum size for exemple... or any other information...
推荐答案
该文件没有指定任何模式，因此任何有效的字符串是允许的。该格式可以在未来改变;请不要验证此输入对的任意的模式，因为这可能会导致您的应用程序，以打破，如果发生这种情况。
The documentation doesn't specify any pattern, therefore any valid string is allowed. The format may change in the future; please do not validate this input against any pattern, as this may cause your app to break if this happens.
如同registration_id字段，上界上的大小是最大尺寸的cookie，它是4K（4096字节）。
As with the "registration_id" field, the upper bound on size is the max size for a cookie, which is 4K (4096 bytes).
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