对象存储服务 OBS-使用临时URL进行授权访问:获取对象

时间:2024-12-09 15:46:28

获取对象

static OBSClient *client;
NSString *endPoint = @"your-endpoint";
// 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险,建议在配置文件或者环境变量中密文存放,使用时解密,确保安全;本示例以ak和sk保存在环境变量中为例,运行本示例前请先在本地环境中设置环境变量AccessKeyID和SecretAccessKey。
// 您可以登录访问管理控制台获取访问密钥AK/SK,获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.html
char* ak_env = getenv("AccessKeyID");
char* sk_env = getenv("SecretAccessKey");
NSString *AK = [NSString stringWithUTF8String:ak_env];
NSString *SK = [NSString stringWithUTF8String:sk_env];
    
// 初始化身份验证
OBSStaticCredentialProvider *credentialProvider = [[OBSStaticCredentialProvider alloc] initWithAccessKey:AK secretKey:SK];
    
//初始化服务配置
OBSServiceConfiguration *conf = [[OBSServiceConfiguration alloc] initWithURLString:endPoint credentialProvider:credentialProvider];
    
// 初始化client
client = [[OBSClient alloc] initWithConfiguration:conf];
OBSGetObjectToDataRequest *request = [[OBSGetObjectToDataRequest alloc] initWithBucketName:@"bucketname" objectKey:@"objectkey"];
    
// V2生成授权访问url
[client createV2PreSignedURL:request expireAfter:3600 completionHandler:^(NSString *urlString, NSString *httpVerb, NSDictionary *signedHeaders) {
    NSLog(@"%@",urlString);
}]
support.huaweicloud.com/sdk-ios-devg-obs/obs_27_0701.html