A Baidu Cloud Servcies network request signer.
#import "BDCloudSigner.h"
id<BDCloudSigner> createSigner() {
BDCloudCredentials* credentials = [BDCloudCredentials new];
credentials.accessKey = @"<access key>";
credentials.secretKey = @"<secret key>";
id<BDCloudSigner> signer = [[BDCloudAKSKSigner alloc] initWithCredentials:credentials];
signer.expiredTimeInSeconds = 3600;
return signer;
}
NSMutableURLRequest* createRequest() {
// create url directly, or use NSURLComponents.
NSURL* url = [NSURL URLWithString:@"http://bj.bcebos.com/v1/bucket/object?append"];
// create request.
NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:url];
request.HTTPMethod = @"POST";
[request setValue:@"<length>" forHTTPHeaderField:@"Content-Length"];
[request setValue:@"<md5>" forHTTPHeaderField:@"Content-MD5"];
[request setValue:@"text/plain" forHTTPHeaderField:@"Content-Type"];
// custom metadata key should begin with lower case prefix 'x-bce-'.
[request setValue:@"2017-01-08T21:42:30Z" forHTTPHeaderField:@"x-bce-user-metadata-createtime"];
// Host will be set when call sign.
//[request setValue:@"bj.bcebos.com" forHTTPHeaderField:@"Host"];
return request;
}
void sign() {
id<BDCloudSigner> signer = createSigner();
NSMutableURLRequest* request = createRequest();
if (![signer sign:request]) {
return;
}
// url
NSURL* fileURL = [NSURL fileURLWithPath:@"<file path>"];
// send request
// sample purpose, don't care task will running correctly.
[[NSURLSession sharedSession] uploadTaskWithRequest:request
fromFile:fileURL];
}