67 lines
1.9 KiB
Objective-C
67 lines
1.9 KiB
Objective-C
//
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// QNDnsPrefetch.h
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// QnDNS
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//
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// Created by yangsen on 2020/3/26.
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// Copyright © 2020 com.qiniu. All rights reserved.
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//
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#import "QNDns.h"
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#import "QNUpToken.h"
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#import "QNConfiguration.h"
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#import "QNTransactionManager.h"
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NS_ASSUME_NONNULL_BEGIN
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#define kQNDnsPrefetch [QNDnsPrefetch shared]
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@interface QNDnsPrefetch : NSObject
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/// 最近一次预取错误信息
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@property(nonatomic, copy, readonly)NSString *lastPrefetchedErrorMessage;
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+ (instancetype)shared;
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/// 根据host从缓存中读取DNS信息
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/// @param host 域名
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- (NSArray <id <QNIDnsNetworkAddress> > *)getInetAddressByHost:(NSString *)host;
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/// 通过安全的方式预取 dns
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- (NSString *)prefetchHostBySafeDns:(NSString *)host error:(NSError **)error;
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- (void)clearDnsCache:(NSError **)error;
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@end
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@interface QNTransactionManager(Dns)
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/// 添加加载本地dns事务
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- (void)addDnsLocalLoadTransaction;
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/// 添加检测并预取dns事务 如果未开启DNS 或 事务队列中存在token对应的事务未处理，则返回NO
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/// @param currentZone 当前区域
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/// @param token token信息
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- (BOOL)addDnsCheckAndPrefetchTransaction:(QNZone *)currentZone token:(QNUpToken *)token;
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- (BOOL)addDnsCheckAndPrefetchTransaction:(QNConfiguration *)config zone:(QNZone *)currentZone token:(QNUpToken *)token;
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/// 设置定时事务：检测已缓存DNS有效情况事务 无效会重新预取
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- (void)setDnsCheckWhetherCachedValidTransactionAction;
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@end
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#define kQNDnsSourceDoh @"doh"
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#define kQNDnsSourceUdp @"dns"
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#define kQNDnsSourceDnspod @"dnspod"
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#define kQNDnsSourceSystem @"system"
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#define kQNDnsSourceCustom @"customized"
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#define kQNDnsSourceNone @"none"
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BOOL kQNIsDnsSourceDoh(NSString * _Nullable source);
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BOOL kQNIsDnsSourceUdp(NSString * _Nullable source);
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BOOL kQNIsDnsSourceDnsPod(NSString * _Nullable source);
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BOOL kQNIsDnsSourceSystem(NSString * _Nullable source);
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BOOL kQNIsDnsSourceCustom(NSString * _Nullable source);
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NS_ASSUME_NONNULL_END
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