(Objective-C) SFTP Get File Date/Times in Different Formats

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Demonstrates how to get remote file date/times in different formats.

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#import <CkoSFtp.h>
#import <NSString.h>
#import <CkoSFtpDir.h>
#import <CkoStringBuilder.h>
#import <CkoSFtpFile.h>
#import <CkoDateTime.h>

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

CkoSFtp *sftp = [[CkoSFtp alloc] init];

// Connect to the SSH server.  
NSString *hostname = @"my-sftp-server.com";
int port = 22;
BOOL success = [sftp Connect: hostname port: [NSNumber numberWithInt: port]];
if (success != YES) {
    NSLog(@"%@",sftp.LastErrorText);
    return;
}

// Authenticate with the SSH server. 
success = [sftp AuthenticatePw: @"myLogin" password: @"myPassword"];
if (success != YES) {
    NSLog(@"%@",sftp.LastErrorText);
    return;
}

// After authenticating, the SFTP subsystem must be initialized:
success = [sftp InitializeSftp];
if (success != YES) {
    NSLog(@"%@",sftp.LastErrorText);
    return;
}

// Open a directory on the server...
// This example opens the "junk" directory located under the HOME directory of the SSH user account.
NSString *handle = [sftp OpenDir: @"junk"];
if (sftp.LastMethodSuccess != YES) {
    NSLog(@"%@",sftp.LastErrorText);
    return;
}

// Download the directory listing:
CkoSFtpDir *dirListing = [sftp ReadDir: handle];
if (sftp.LastMethodSuccess != YES) {
    NSLog(@"%@",sftp.LastErrorText);
    return;
}

// Close the directory handle
success = [sftp CloseHandle: handle];
if (success != YES) {
    NSLog(@"%@",sftp.LastErrorText);
    return;
}

// Iterate over the files.
// Examine each filename and indicate those that match *FICHERO*.pdf
// (i.e. the filename contains the word "FICHERO" and ends in ".pdf")
int i = 0;
int n = [dirListing.NumFilesAndDirs intValue];
CkoStringBuilder *sbFilename = [[CkoStringBuilder alloc] init];
BOOL caseSensitive = NO;
BOOL bLocalDateTime = NO;
while (i < n) {
    CkoSFtpFile *fileObj = [dirListing GetFileObject: [NSNumber numberWithInt: i]];
    NSLog(@"%@",fileObj.Filename);

    // Get the last-modified date/time
    CkoDateTime *dt = [fileObj GetLastModifiedDt];

    // Get the date/time in any format offered by the CkDateTime object.

    // such as Wed, 18 Oct 2017 09:08:21 GMT
    NSLog(@"%@%@",@"RFC822 format: ",[dt GetAsRfc822: bLocalDateTime]);

    // such as 1990-12-31T23:59:60Z
    NSLog(@"%@%@",@"Timestamp: ",[dt GetAsTimestamp: bLocalDateTime]);

    // Such as: "02/16/2008 12:15:12"  where hour is 0 to 23.
    NSLog(@"%@%@",@"RFC822 format: ",[dt GetAsIso8601: @"MM/DD/YYYY hh:mm:ss" bLocal: bLocalDateTime]);

    i = i + 1;
}

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