132 lines
5.0 KiB
Objective-C
132 lines
5.0 KiB
Objective-C
//
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// HttpdnsScheduleExecutor.m
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// AlicloudHttpDNS
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//
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// Created by ElonChan（地风） on 2017/4/11.
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// Copyright © 2017年 alibaba-inc.com. All rights reserved.
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//
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#import "HttpdnsScheduleExecutor.h"
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#import "HttpdnsLog_Internal.h"
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#import "HttpdnsService_Internal.h"
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#import "HttpdnsInternalConstant.h"
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#import "HttpdnsUtil.h"
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#import "HttpdnsScheduleCenter.h"
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#import "HttpdnsHostObject.h"
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#import "HttpdnsReachability.h"
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#import "HttpdnsPublicConstant.h"
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#import "HttpdnsNWHTTPClient.h"
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@interface HttpdnsScheduleExecutor ()
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@property (nonatomic, strong) HttpdnsNWHTTPClient *httpClient;
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@end
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@implementation HttpdnsScheduleExecutor {
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NSInteger _accountId;
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NSTimeInterval _timeoutInterval;
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}
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- (instancetype)init {
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if (!(self = [super init])) {
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return nil;
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}
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// 兼容旧路径：使用全局单例读取，但多账号场景下建议使用新init接口
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_accountId = [HttpDnsService sharedInstance].accountID;
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_timeoutInterval = [HttpDnsService sharedInstance].timeoutInterval;
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_httpClient = [HttpdnsNWHTTPClient sharedInstance];
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return self;
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}
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- (instancetype)initWithAccountId:(NSInteger)accountId timeout:(NSTimeInterval)timeoutInterval {
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if (!(self = [self init])) {
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return nil;
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}
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_accountId = accountId;
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_timeoutInterval = timeoutInterval;
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return self;
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}
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/**
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* 拼接 URL
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* 2024.6.12今天起，调度服务由后端就近调度，不再需要传入region参数，但为了兼容不传region默认就是国内region的逻辑，默认都传入region=global
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* https://203.107.1.1/100000/ss?region=global&platform=ios&sdk_version=3.1.7&sid=LpmJIA2CUoi4&net=wifi
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*/
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- (NSString *)constructRequestURLWithUpdateHost:(NSString *)updateHost {
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NSString *urlPath = [NSString stringWithFormat:@"%ld/ss?region=global&platform=ios&sdk_version=%@", (long)_accountId, HTTPDNS_IOS_SDK_VERSION];
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urlPath = [self urlFormatSidNetBssid:urlPath];
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urlPath = [urlPath stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet characterSetWithCharactersInString:@"`#%^{}\"[]|\\<> "].invertedSet];
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return [NSString stringWithFormat:@"https://%@/%@", updateHost, urlPath];
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}
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// url 添加 sid net
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- (NSString *)urlFormatSidNetBssid:(NSString *)url {
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NSString *sessionId = [HttpdnsUtil generateSessionID];
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if ([HttpdnsUtil isNotEmptyString:sessionId]) {
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url = [NSString stringWithFormat:@"%@&sid=%@", url, sessionId];
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}
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NSString *netType = [[HttpdnsReachability sharedInstance] currentReachabilityString];
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if ([HttpdnsUtil isNotEmptyString:netType]) {
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url = [NSString stringWithFormat:@"%@&net=%@", url, netType];
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}
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return url;
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}
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- (NSDictionary *)fetchRegionConfigFromServer:(NSString *)updateHost error:(NSError **)pError {
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NSString *fullUrlStr = [self constructRequestURLWithUpdateHost:updateHost];
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HttpdnsLogDebug("ScRequest URL: %@", fullUrlStr);
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NSTimeInterval timeout = _timeoutInterval > 0 ? _timeoutInterval : HTTPDNS_DEFAULT_REQUEST_TIMEOUT_INTERVAL;
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NSString *userAgent = [HttpdnsUtil generateUserAgent];
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NSError *requestError = nil;
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HttpdnsNWHTTPClientResponse *response = [self.httpClient performRequestWithURLString:fullUrlStr
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userAgent:userAgent
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timeout:timeout
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error:&requestError];
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if (!response) {
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if (pError) {
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*pError = requestError;
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HttpdnsLogDebug("ScRequest failed with url: %@, error: %@", fullUrlStr, requestError);
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}
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return nil;
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}
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if (response.statusCode != 200) {
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NSDictionary *dict = @{@"ResponseCode": [NSString stringWithFormat:@"%ld", (long)response.statusCode]};
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if (pError) {
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*pError = [NSError errorWithDomain:ALICLOUD_HTTPDNS_ERROR_DOMAIN
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code:ALICLOUD_HTTPDNS_HTTPS_NO_DATA_ERROR_CODE
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userInfo:dict];
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}
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return nil;
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}
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NSError *jsonError = nil;
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id jsonValue = [NSJSONSerialization JSONObjectWithData:response.body options:kNilOptions error:&jsonError];
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if (jsonError) {
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if (pError) {
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*pError = jsonError;
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HttpdnsLogDebug("ScRequest JSON parse error, url: %@, error: %@", fullUrlStr, jsonError);
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}
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return nil;
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}
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NSDictionary *result = [HttpdnsUtil getValidDictionaryFromJson:jsonValue];
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if (result) {
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HttpdnsLogDebug("ScRequest get response: %@", result);
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return result;
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}
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if (pError) {
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*pError = [NSError errorWithDomain:ALICLOUD_HTTPDNS_ERROR_DOMAIN
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code:ALICLOUD_HTTP_PARSE_JSON_FAILED
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userInfo:@{NSLocalizedDescriptionKey: @"Failed to parse JSON response"}];
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}
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if (pError != NULL) {
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HttpdnsLogDebug("ScRequest failed with url: %@, response body invalid", fullUrlStr);
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}
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return nil;
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}
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@end
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