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| #Changelog | ||
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| ## 0.1.1 (2015-07-16) | ||
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| ### 增加 | ||
| * localdns 劫持检测 | ||
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| ## 0.1.0 (2015-07-15) | ||
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| ### 增加 | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,17 @@ | ||
| // | ||
| // QNHijackingDetectWrapper.h | ||
| // HappyDNS | ||
| // | ||
| // Created by bailong on 15/7/16. | ||
| // Copyright (c) 2015年 Qiniu Cloud Storage. All rights reserved. | ||
| // | ||
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| #import <Foundation/Foundation.h> | ||
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| #import "QNResolverDelegate.h" | ||
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| @class QNResolver; | ||
| @interface QNHijackingDetectWrapper : NSObject <QNResolverDelegate> | ||
| - (NSArray *)query:(QNDomain *)domain networkInfo:(QNNetworkInfo *)netInfo error:(NSError *__autoreleasing *)error; | ||
| - (instancetype)initWithResolver:(QNResolver *)resolver; | ||
| @end |
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| // | ||
| // QNHijackingDetectWrapper.m | ||
| // HappyDNS | ||
| // | ||
| // Created by bailong on 15/7/16. | ||
| // Copyright (c) 2015年 Qiniu Cloud Storage. All rights reserved. | ||
| // | ||
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| #import "QNHijackingDetectWrapper.h" | ||
| #import "QNResolver.h" | ||
| #import "QNDomain.h" | ||
| #import "QNRecord.h" | ||
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| @interface QNHijackingDetectWrapper () | ||
| @property (nonatomic, readonly) QNResolver* resolver; | ||
| @end | ||
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| @implementation QNHijackingDetectWrapper | ||
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| - (NSArray *)query:(QNDomain *)domain networkInfo:(QNNetworkInfo *)netInfo error:(NSError *__autoreleasing *)error { | ||
| NSArray *result = [_resolver query:domain networkInfo:netInfo error:error]; | ||
| if (((!domain.hasCname) && domain.maxTtl == 0) || result == nil || result.count == 0) { | ||
| return result; | ||
| } | ||
| BOOL hasCname = NO; | ||
| BOOL outOfTtl = NO; | ||
| for (int i = 0; i<result.count; i++) { | ||
| QNRecord* record = [result objectAtIndex:i]; | ||
| if (record.type == kQNTypeCname) { | ||
| hasCname = YES; | ||
| } | ||
| if (domain.maxTtl > 0 && record.type ==kQNTypeA && record.ttl>domain.maxTtl) { | ||
| outOfTtl = YES; | ||
| } | ||
| } | ||
| if ((domain.hasCname && !hasCname) || outOfTtl) { | ||
| if (error != nil) { | ||
| *error = [[NSError alloc] initWithDomain:domain.domain code:kQNDomainHijackingCode userInfo:nil]; | ||
| } | ||
| return nil; | ||
| } | ||
| return result; | ||
| } | ||
| - (instancetype)initWithResolver:(QNResolver *)resolver { | ||
| if (self = [super init]) { | ||
| _resolver = resolver; | ||
| } | ||
| return self; | ||
| } | ||
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| @end |
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