feat: sync httpdns sdk/platform updates without large binaries
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306
HttpDNSSDK/sdk/ios/NewHttpDNS/Model/HttpdnsHostObject.m
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306
HttpDNSSDK/sdk/ios/NewHttpDNS/Model/HttpdnsHostObject.m
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#import "HttpdnsHostObject.h"
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#import "HttpdnsInternalConstant.h"
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#import "HttpdnsUtil.h"
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#import "HttpdnsLog_Internal.h"
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#import "HttpdnsHostRecord.h"
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#import "HttpdnsIPQualityDetector.h"
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@implementation HttpdnsIpObject
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- (instancetype)init {
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if (self = [super init]) {
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// 初始化connectedRT为最大整数<EFBFBD><EFBFBD>?
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self.connectedRT = NSIntegerMax;
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}
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return self;
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}
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- (id)initWithCoder:(NSCoder *)aDecoder {
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if (self = [super init]) {
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self.ip = [aDecoder decodeObjectForKey:@"ip"];
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self.connectedRT = [aDecoder decodeIntegerForKey:@"connectedRT"];
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}
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return self;
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}
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- (void)encodeWithCoder:(NSCoder *)aCoder {
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[aCoder encodeObject:self.ip forKey:@"ip"];
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[aCoder encodeInteger:self.connectedRT forKey:@"connectedRT"];
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}
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- (id)copyWithZone:(NSZone *)zone {
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HttpdnsIpObject *copy = [[[self class] allocWithZone:zone] init];
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if (copy) {
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copy.ip = [self.ip copyWithZone:zone];
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copy.connectedRT = self.connectedRT;
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}
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return copy;
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}
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+ (NSArray<HttpdnsIpObject *> *)IPObjectsFromIPs:(NSArray<NSString *> *)IPs {
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NSMutableArray *IPObjects = [NSMutableArray arrayWithCapacity:IPs.count];
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for (NSString *IP in IPs) {
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HttpdnsIpObject *IPObject = [HttpdnsIpObject new];
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IPObject.ip = IP;
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IPObject.connectedRT = NSIntegerMax;
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[IPObjects addObject:IPObject];
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}
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return [IPObjects copy];
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}
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- (NSString *)description {
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if (self.connectedRT == NSIntegerMax) {
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return [NSString stringWithFormat:@"ip: %@", self.ip];
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} else {
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return [NSString stringWithFormat:@"ip: %@, connectedRT: %ld", self.ip, self.connectedRT];
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}
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}
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@end
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@implementation HttpdnsHostObject
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- (instancetype)init {
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_hostName = nil;
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_cacheKey = nil;
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_clientIp = nil;
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_v4ttl = -1;
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_lastIPv4LookupTime = 0;
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_v6ttl = -1;
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_lastIPv6LookupTime = 0;
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_isLoadFromDB = NO;
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_v4Ips = nil;
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_v6Ips = nil;
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_extra = nil;
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_hasNoIpv4Record = NO;
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_hasNoIpv6Record = NO;
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return self;
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}
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- (instancetype)initWithCoder:(NSCoder *)aDecoder {
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if (self = [super init]) {
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_cacheKey = [aDecoder decodeObjectForKey:@"cacheKey"];
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_hostName = [aDecoder decodeObjectForKey:@"hostName"];
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_clientIp = [aDecoder decodeObjectForKey:@"clientIp"];
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_v4Ips = [aDecoder decodeObjectForKey:@"v4ips"];
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_v4ttl = [aDecoder decodeInt64ForKey:@"v4ttl"];
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_lastIPv4LookupTime = [aDecoder decodeInt64ForKey:@"lastIPv4LookupTime"];
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_v6Ips = [aDecoder decodeObjectForKey:@"v6ips"];
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_v6ttl = [aDecoder decodeInt64ForKey:@"v6ttl"];
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_lastIPv6LookupTime = [aDecoder decodeInt64ForKey:@"lastIPv6LookupTime"];
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_extra = [aDecoder decodeObjectForKey:@"extra"];
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}
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return self;
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}
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- (void)encodeWithCoder:(NSCoder *)aCoder {
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[aCoder encodeObject:_cacheKey forKey:@"cacheKey"];
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[aCoder encodeObject:_hostName forKey:@"hostName"];
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[aCoder encodeObject:_clientIp forKey:@"clientIp"];
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[aCoder encodeObject:_v4Ips forKey:@"v4ips"];
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[aCoder encodeInt64:_v4ttl forKey:@"v4ttl"];
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[aCoder encodeInt64:_lastIPv4LookupTime forKey:@"lastIPv4LookupTime"];
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[aCoder encodeObject:_v6Ips forKey:@"v6ips"];
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[aCoder encodeInt64:_v6ttl forKey:@"v6ttl"];
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[aCoder encodeInt64:_lastIPv6LookupTime forKey:@"lastIPv6LookupTime"];
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[aCoder encodeObject:_extra forKey:@"extra"];
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}
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- (BOOL)isIpEmptyUnderQueryIpType:(HttpdnsQueryIPType)queryType {
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if (queryType & HttpdnsQueryIPTypeIpv4) {
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// 注意，_hasNoIpv4Record为true时，说明域名没有配置ipv4ip，不是需要去请求的情<EFBFBD><EFBFBD>?
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if ([HttpdnsUtil isEmptyArray:[self getV4Ips]] && !_hasNoIpv4Record) {
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return YES;
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}
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} else if (queryType & HttpdnsQueryIPTypeIpv6 && !_hasNoIpv6Record) {
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// 注意，_hasNoIpv6Record为true时，说明域名没有配置ipv6ip，不是需要去请求的情<EFBFBD><EFBFBD>?
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if ([HttpdnsUtil isEmptyArray:[self getV6Ips]] && !_hasNoIpv6Record) {
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return YES;
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}
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}
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return NO;
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}
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- (id)copyWithZone:(NSZone *)zone {
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HttpdnsHostObject *copy = [[[self class] allocWithZone:zone] init];
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if (copy) {
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copy.cacheKey = [self.cacheKey copyWithZone:zone];
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copy.hostName = [self.hostName copyWithZone:zone];
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copy.clientIp = [self.clientIp copyWithZone:zone];
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copy.v4Ips = [[NSArray allocWithZone:zone] initWithArray:self.v4Ips copyItems:YES];
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copy.v6Ips = [[NSArray allocWithZone:zone] initWithArray:self.v6Ips copyItems:YES];
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copy.v4ttl = self.v4ttl;
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copy.lastIPv4LookupTime = self.lastIPv4LookupTime;
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copy.v6ttl = self.v6ttl;
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copy.lastIPv6LookupTime = self.lastIPv6LookupTime;
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copy.hasNoIpv4Record = self.hasNoIpv4Record;
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copy.hasNoIpv6Record = self.hasNoIpv6Record;
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copy.extra = [self.extra copyWithZone:zone];
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copy.isLoadFromDB = self.isLoadFromDB;
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}
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return copy;
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}
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- (BOOL)isExpiredUnderQueryIpType:(HttpdnsQueryIPType)queryIPType {
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int64_t currentEpoch = (int64_t)[[[NSDate alloc] init] timeIntervalSince1970];
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if ((queryIPType & HttpdnsQueryIPTypeIpv4)
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&& !_hasNoIpv4Record
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&& _lastIPv4LookupTime + _v4ttl <= currentEpoch) {
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return YES;
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}
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if ((queryIPType & HttpdnsQueryIPTypeIpv6)
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&& !_hasNoIpv6Record
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&& _lastIPv6LookupTime + _v6ttl <= currentEpoch) {
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return YES;
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}
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return NO;
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}
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+ (instancetype)fromDBRecord:(HttpdnsHostRecord *)hostRecord {
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HttpdnsHostObject *hostObject = [HttpdnsHostObject new];
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[hostObject setCacheKey:hostRecord.cacheKey];
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[hostObject setHostName:hostRecord.hostName];
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[hostObject setClientIp:hostRecord.clientIp];
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NSArray *v4ips = hostRecord.v4ips;
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NSArray *v6ips = hostRecord.v6ips;
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if ([HttpdnsUtil isNotEmptyArray:v4ips]) {
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[hostObject setV4Ips:[HttpdnsIpObject IPObjectsFromIPs:v4ips]];
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[hostObject setV4TTL:hostRecord.v4ttl];
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[hostObject setLastIPv4LookupTime:hostRecord.v4LookupTime];
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}
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if ([HttpdnsUtil isNotEmptyArray:v6ips]) {
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[hostObject setV6Ips:[HttpdnsIpObject IPObjectsFromIPs:v6ips]];
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[hostObject setV6TTL:hostRecord.v6ttl];
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[hostObject setLastIPv6LookupTime:hostRecord.v6LookupTime];
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}
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[hostObject setExtra:hostRecord.extra];
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[hostObject setIsLoadFromDB:YES];
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return hostObject;
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}
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- (HttpdnsHostRecord *)toDBRecord {
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// 将IP对象数组转换为IP字符串数<EFBFBD><EFBFBD>?
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NSArray<NSString *> *v4IpStrings = [self getV4IpStrings];
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NSArray<NSString *> *v6IpStrings = [self getV6IpStrings];
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// 创建当前时间作为modifyAt
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NSDate *currentDate = [NSDate date];
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// 使用hostName作为cacheKey，保持与fromDBRecord方法的一致<EFBFBD><EFBFBD>?
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return [[HttpdnsHostRecord alloc] initWithId:0 // 数据库会自动分配ID
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cacheKey:self.cacheKey
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hostName:self.hostName
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createAt:currentDate
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modifyAt:currentDate
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clientIp:self.clientIp
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v4ips:v4IpStrings
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v4ttl:self.v4ttl
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v4LookupTime:self.lastIPv4LookupTime
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v6ips:v6IpStrings
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v6ttl:self.v6ttl
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v6LookupTime:self.lastIPv6LookupTime
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extra:self.extra];
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}
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- (NSArray<NSString *> *)getV4IpStrings {
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NSArray<HttpdnsIpObject *> *ipv4Records = [self getV4Ips];
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NSMutableArray<NSString *> *ipv4Strings = [NSMutableArray arrayWithCapacity:ipv4Records.count];
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for (HttpdnsIpObject *IPObject in ipv4Records) {
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[ipv4Strings addObject:[IPObject getIpString]];
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}
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return [ipv4Strings copy];
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}
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- (NSArray<NSString *> *)getV6IpStrings {
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NSArray<HttpdnsIpObject *> *ipv6Records = [self getV6Ips];
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NSMutableArray<NSString *> *ipv6sString = [NSMutableArray arrayWithCapacity:ipv6Records.count];
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for (HttpdnsIpObject *ipObject in ipv6Records) {
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[ipv6sString addObject:[ipObject getIpString]];
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}
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return [ipv6sString copy];
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}
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- (void)updateConnectedRT:(NSInteger)connectedRT forIP:(NSString *)ip {
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if ([HttpdnsUtil isEmptyString:ip]) {
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return;
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}
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BOOL isIPv6 = [HttpdnsUtil isIPv6Address:ip];
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NSArray<HttpdnsIpObject *> *ipObjects = isIPv6 ? [self getV6Ips] : [self getV4Ips];
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if ([HttpdnsUtil isEmptyArray:ipObjects]) {
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return;
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}
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// 查找匹配的IP对象并更新connectedRT
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BOOL found = NO;
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NSMutableArray<HttpdnsIpObject *> *mutableIpObjects = [ipObjects mutableCopy];
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for (HttpdnsIpObject *ipObject in ipObjects) {
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if ([ipObject.ip isEqualToString:ip]) {
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ipObject.connectedRT = connectedRT;
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found = YES;
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break;
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}
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}
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if (!found) {
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return;
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}
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// 根据connectedRT值对IP列表进行排序<EFBFBD><EFBFBD>?1值放在最<EFBFBD><EFBFBD>?
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[mutableIpObjects sortUsingComparator:^NSComparisonResult(HttpdnsIpObject *obj1, HttpdnsIpObject *obj2) {
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// 如果obj1的connectedRT<EFBFBD><EFBFBD>?1，将其排在后<EFBFBD><EFBFBD>?
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if (obj1.connectedRT == -1) {
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return NSOrderedDescending;
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}
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// 如果obj2的connectedRT<EFBFBD><EFBFBD>?1，将其排在后<EFBFBD><EFBFBD>?
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if (obj2.connectedRT == -1) {
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return NSOrderedAscending;
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}
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// 否则按照connectedRT值从小到大排<EFBFBD><EFBFBD>?
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return obj1.connectedRT > obj2.connectedRT ? NSOrderedDescending : (obj1.connectedRT < obj2.connectedRT ? NSOrderedAscending : NSOrderedSame);
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}];
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// 更新排序后的IP列表
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if (isIPv6) {
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[self setV6Ips:[mutableIpObjects copy]];
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} else {
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[self setV4Ips:[mutableIpObjects copy]];
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}
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}
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- (NSString *)description {
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if (![HttpdnsUtil isNotEmptyArray:_v6Ips]) {
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return [NSString stringWithFormat:@"Host = %@ v4ips = %@ v4ttl = %lld v4LastLookup = %lld extra = %@",
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_hostName, _v4Ips, _v4ttl, _lastIPv4LookupTime, _extra];
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} else {
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return [NSString stringWithFormat:@"Host = %@ v4ips = %@ v4ttl = %lld v4LastLookup = %lld v6ips = %@ v6ttl = %lld v6LastLookup = %lld extra = %@",
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_hostName, _v4Ips, _v4ttl, _lastIPv4LookupTime, _v6Ips, _v6ttl, _lastIPv6LookupTime, _extra];
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}
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}
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@end
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