(Objective-C) Set Container ACL

Azure Storage Blob Service REST API: Sample code to set the permissions of a container.

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#import <CkoRest.h>
#import <CkoAuthAzureStorage.h>
#import <CkoPrng.h>
#import <NSString.h>
#import <CkoDateTime.h>
#import <CkoXml.h>

// Azure Blob Service Example: Set Container ACL
// See also: https://msdn.microsoft.com/en-us/library/azure/dd179391.aspx

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoRest *rest = [[CkoRest alloc] init];

// Connect to the Azure Storage Blob Service
BOOL bTls = YES;
int port = 443;
BOOL bAutoReconnect = YES;
// In this example, the storage account name is "chilkat".
BOOL success = [rest Connect: @"chilkat.blob.core.windows.net" port: [NSNumber numberWithInt: port] tls: bTls autoReconnect: bAutoReconnect];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

// Provide Azure Cloud credentials for the REST call.
CkoAuthAzureStorage *azAuth = [[CkoAuthAzureStorage alloc] init];
azAuth.AccessKey = @"AZURE_ACCESS_KEY";
// The account name used here should match the 1st part of the domain passed in the call to Connect (above).
azAuth.Account = @"chilkat";
azAuth.Scheme = @"SharedKey";
azAuth.Service = @"Blob";
// This causes the "x-ms-version: 2020-08-04" header to be automatically added.
azAuth.XMsVersion = @"2020-08-04";
success = [rest SetAuthAzureStorage: azAuth];

// Note: The application does not need to explicitly set the following
// headers: x-ms-date, Authorization.  These headers
// are automatically set by Chilkat.

// The XML body of the request will look like this:

// <?xml version="1.0" encoding="utf-8"?>
// <SignedIdentifiers>
//   <SignedIdentifier> 
//     <Id>unique-character-value-of-up-to-64-chars</Id>
//     <AccessPolicy>
//       <Start>start-time</Start>
//       <Expiry>expiry-time</Expiry>
//       <Permission>abbreviated-permission-list</Permission>
//     </AccessPolicy>
//   </SignedIdentifier>
// </SignedIdentifiers>

// Generate a random 32-character string.
CkoPrng *prng = [[CkoPrng alloc] init];
NSString *randomId = [prng RandomString: [NSNumber numberWithInt: 32] bDigits: YES bLower: YES bUpper: YES];

// Get the current system date/time in ISO 8061 format
CkoDateTime *dt = [[CkoDateTime alloc] init];
[dt SetFromCurrentSystemTime];
BOOL bLocal = NO;
// Get the current date/time in ISO 8061 UTC format.
NSString *curDtStr = [dt GetAsTimestamp: bLocal];
// The expire time will be 365 days in the future.
success = [dt AddDays: [NSNumber numberWithInt: 365]];
NSString *expireDtStr = [dt GetAsTimestamp: bLocal];

// Build the request:
CkoXml *xml = [[CkoXml alloc] init];
xml.Tag = @"SignedIdentifiers";
CkoXml *xSignedId = [xml NewChild: @"SignedIdentifier" content: @""];
[xSignedId NewChild2: @"Id" content: randomId];
CkoXml *xAccessPolicy = [xSignedId NewChild: @"AccessPolicy" content: @""];
[xAccessPolicy NewChild2: @"Start" content: curDtStr];
[xAccessPolicy NewChild2: @"Expiry" content: expireDtStr];
[xAccessPolicy NewChild2: @"Permission" content: @"rwd"];

// Show the XML..
NSLog(@"%@",[xml GetXml]);

// The expected response is a 200 response status code with no response body.
NSString *responseStr = [rest FullRequestString: @"PUT" uriPath: @"/mycontainer?restype=container&comp=acl" bodyText: [xml GetXml]];
if (rest.LastMethodSuccess != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

// When successful, the Azure Storage service will respond with a 200 response status code,
// with no response body.

if ([rest.ResponseStatusCode intValue] != 200) {
    // Examine the request/response to see what happened.
    NSLog(@"%@%d",@"response status code = ",[rest.ResponseStatusCode intValue]);
    NSLog(@"%@%@",@"response status text = ",rest.ResponseStatusText);
    NSLog(@"%@%@",@"response header: ",rest.ResponseHeader);
    NSLog(@"%@%@",@"response body (if any): ",responseStr);
    NSLog(@"%@",@"---");
    NSLog(@"%@%@",@"LastRequestStartLine: ",rest.LastRequestStartLine);
    NSLog(@"%@%@",@"LastRequestHeader: ",rest.LastRequestHeader);
    return;
}

NSLog(@"%@",@"Success.");