keycloak~巧用client-scope實(shí)現(xiàn)token字段和userinfo接口的授權(quán)

keycloak中的client-scope允許你為每個客戶端分配scope，而scope就是授權(quán)范圍，它直接影響了token中的內(nèi)容，及userinfo端點(diǎn)可以獲取到的用戶信息，這塊我們可以通過自定義scope/mapper，來實(shí)現(xiàn)粒度的控制，并且這個mapper可以控制添加到token，或者添加到userinfo端點(diǎn)，這兩塊配置也是獨(dú)立的，下面我們通過一個登錄IP地址的mapper，來實(shí)現(xiàn)將登錄ip添加到token和userinfo端點(diǎn)。

添加Mapper對象

public class ExtensionLoginIpMapper
        extends AbstractOIDCProtocolMapper
        implements OIDCAccessTokenMapper, OIDCIDTokenMapper, UserInfoTokenMapper {
    public static final String CONFIG_NAME = "ExtensionLoginIp";//配置里的名稱
    public static final String PROVIDER_ID = "oidc-extension-login-ip-mapper";
    private static final List<ProviderConfigProperty> configProperties = new ArrayList<ProviderConfigProperty>();
    private static final String LOGIN_IP = "loginIp";

    static {
        configProperties.add(createConfigProperty(CONFIG_NAME, "Token申請名", "在jwt中的屬性名稱，默認(rèn)loginIp"));
        OIDCAttributeMapperHelper.addIncludeInTokensConfig(configProperties, ExtensionLoginIpMapper.class);
    }

    protected static ProviderConfigProperty createConfigProperty(String claimName, String label, String help) {
        ProviderConfigProperty property = new ProviderConfigProperty();
        property.setName(claimName);
        property.setLabel(label);
        property.setHelpText(help);
        property.setType(ProviderConfigProperty.STRING_TYPE);
        return property;
    }

    @Override
    protected void setClaim(IDToken token, ProtocolMapperModel mappingModel, UserSessionModel userSession,
                            KeycloakSession keycloakSession, ClientSessionContext clientSessionCtx) {
        try {
            String key = LOGIN_IP;
            if (mappingModel.getConfig().containsKey(CONFIG_NAME)) {
                key = mappingModel.getConfig().get(CONFIG_NAME);
            }

            if (userSession.getNotes().containsKey(LOGIN_IP)) {
                String val = userSession.getNote(LOGIN_IP);
                token.setOtherClaims(key, val);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public List<ProviderConfigProperty> getConfigProperties() {
        return configProperties;
    }

    @Override
    public String getId() {
        return PROVIDER_ID;
    }

    @Override
    public String getDisplayType() {
        return CONFIG_NAME;
    }

    @Override
    public String getDisplayCategory() {
        return TOKEN_MAPPER_CATEGORY;
    }

    @Override
    public String getHelpText() {
        return "Maps Extension Login Ip Address.";
    }
}