SFTP Client library and sample app for iOS, using libssh2
DLSFTPClient is a an Objective-C wrapper around libssh2, providing simple access to upload and download files, as well as perform directory operations. It requires iOS 5.1.
As of 2013-06-01, DLSFTPClient is considered stable. There are no plans to further change the API, though there may be continued efforts to further leverage Grand Central Dispatch.
You'll need to initialize a DLSFTPConnection object with the host and credentials. Simple username/password as well as private key authentication are supported.
DLSFTPConnection *connection = [[DLSFTPConnection alloc] initWithHostname:@"foo.bar.com"
port:22
username:@"username"
password:@"password"];
To establish a connection, use connectWithSuccessBlock:failureBlock:
DLSFTPClientSuccessBlock successBlock = ^{ ... };
DLSFTPClientFailureBlock failureBlock = ^(NSError *error) { ... };
[connection connectWithSuccessBlock:successBlock
failureBlock:failureBlock];
To disconnect, use disconnect
[connection disconnect];
Your success and failure blocks are dispatched to the global concurrent queue. Be sure to dispatch back to the main queue if you need to drive UI updates.
Operations such as listing directory contents, downloading files, and moving/renaming are carried out through subclasses of DLSFTPRequest:
DLSFTPClientArraySuccessBlock successBlock = ^(NSArray *files) {
for (DLSFTPFile *sftpFile in files) {
NSLog(@"File: %@", sftpFile.filename);
}
};
DLSFTPClientFailureBlock failureBlock = ^(NSError *error) {
NSLog(@"Error listing files: %@", error);
};
DLSFTPRequest *request = [[DLSFTPListFilesRequest alloc] initWithDirectoryPath:@"/Users/dan/"
successBlock:successBlock
failureBlock:failureBlock];
[connection submitRequest:request];
The DLSFTPFile class is used to encapsulate file paths and metadata.
When uploading and downloading files, a progress block may be provided. The progress block will be dispatched by the connection as it is transferring the file, and can be used to monitor progress.
- Upload and download files via SFTP
- List files
- Create directories
- Rename/Move files/directories
- Remove files/directories
- Operations can be cancelled
DLSFTPClient includes two test case classes. To use them, you'll need to copy ConnectionInfo-template.plist to ConnectionInfo.plist and update the values with credentials and file paths for your own server. To test private key authentication, you'll need to add a privatekey.pem file as well.
The Demo App is incomplete and needs some polish.
- libssh2 - Provides a shell script to build libssh2.a Static Library and headers
DLSFTPClient is open-source under the BSD license. See the LICENSE file for more info.
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