macOS Cocoa FTP

[MacDonaldsd]

Hi,

There's a few Cocoa applications (using Objective-c) that I want to create that all require some FTP, SFTP interaction for uploading and downloading files.

How do people recommend going about this ?

Is there a C Library that does it, or is i built in to Cocoa somewhere?

 

[Cromulent]

Basically you need to understand the protocol by reading the RFC document http://www.faqs.org/rfcs/rfc959.html and then you should be able to implement a client fairly easily using BSD sockets. Although Cocoa does have a higher level interface for networking BSD sockets will provide the greatest cross platform compatibility if you ever port to other OS's.

 

[yeroen]

I don't know about Cocoa, but libcurl, bundled in /usr/lib as part of OS X, gives you a C-API for doing ftp, sftp, http, and other things.

For more detail, you can read up on it here: http://curl.haxx.se/libcurl/

(There's even a libcurl-tutorial manpage).

There are also other open-source UNIX libraries, available from Mac Ports or Fink, for doing the job but I'd recommend curl.

 

[robbieduncan]

I've done it by reading the RFC before. It's not actually all that bad, but the good new is that someone else has done it for you.

You want ConnectionKit

 

[MacDonaldsd]

Thanks everyone,

I think as my applications won't be just a FTP app, il use the connection kit, and if I have time il do my own FTP classes at a latter date.

Hate to sound like a subversion newbie (which I am) how do I just download the whole source ?

 

[HiRez]

You can also just call curl directly using NSTask, it's pretty easy.

 

[Eraserhead]

Hate to sound like a subversion newbie (which I am) how do I just download the whole source ?

svn co <server_name>

I'd stick with the C stuff as I believe that Cocoa doesn't have good web support. I'd expect it to be improved for 10.6.

 

[Cromulent]

Hate to sound like a subversion newbie (which I am) how do I just download the whole source ?

You can setup Xcode 3.1 to download the entire project from the repository. Just enter the settings then checkout the project to some folder on your drive.

It isn't too bad writing your own protocol implementation. I've been trying to do it with an NNTP reader for a while. It's my learning C project and it is going well.

The hardest thing I found was making sure you sent the commands in the right order, some of the RFC documents are not very clear.

 

[robbieduncan]

svn co <server_name>

I'd stick with the C stuff as I believe that Cocoa doesn't have good web support. I'd expect it to be improved for 10.6.

I've used the FTP stuff from ConnectionKit before ConnectionKit existed. It's just a Cocoa-ised wrapper around lot's of C calls. I'd use it. It's know to work and easy to use...

 

[Eraserhead]

^^ Interesting, I'd heard that the web Services stuff was a bit ***** in Cocoa. I assumed this would be the same. Of course that is a third party framework not an Apple native one.

 

[robbieduncan]

FTP is not a web service.
SFTP is not a web service...

The built in SOAP/XML stuff is weak but it has nothing to do with transferring files.

 

[Eraserhead]

As Core Data can't be used over the web I assumed most remote stuff was weak in Cocoa, clearly I'm wrong .

 

[MacDonaldsd]

You can setup Xcode 3.1 to download the entire project from the repository. Just enter the settings then checkout the project to some folder on your drive.

It isn't too bad writing your own protocol implementation. I've been trying to do it with an NNTP reader for a while. It's my learning C project and it is going well.

The hardest thing I found was making sure you sent the commands in the right order, some of the RFC documents are not very clear.

Hi all,

I can't build and run the ConnectionKit project as it does not create an executable.

Any ideas what I am doing wrong ?

 

[robbieduncan]

Hi all,

I can't build and run the ConnectionKit project as it does not create an executable.

Any ideas what I am doing wrong ?

It's a framework so isn't meant to create an executable. It should build a framework you can include in your own app.

If you are trying to build the included sample app you probably have to change the target.

 

[Nutter]

As Core Data can't be used over the web I assumed most remote stuff was weak in Cocoa, clearly I'm wrong .

This is like saying that most remote stuff is weak in Carbon, and therefore libcurl, which is also written in C, must be weak too.

ConnectionKit is just a third-party framework. The fact that it's written in Objective-C, like Cocoa and the WebServicesCore framework, does not have any bearing on its ability to do the job.

 

[MacDonaldsd]

It's a framework so isn't meant to create an executable. It should build a framework you can include in your own app.

If you are trying to build the included sample app you probably have to change the target.

OK, yeah it does build the framework fine.

There is only 1 xcode project file, so how do I modify it to build the sample application ?

Sorry im just a bit confused about it

 

[robbieduncan]

Project->Set Active Target in XCode

 

[MacDonaldsd]

Project->Set Active Target in XCode

Thanks that works

 

[KartikGanesan]

Hi,

Congrats to Greg and Team for implementing ConnectionKit.

Integrating FTP was simple as the sample application was helpful.

Has anyone integrated HTTP into their application yet?

Do tell me how to achieve that

Thanks

KG

 

[dampi]

Hi!

Could you upload some example code of yours? I do not know how to make it working. And what sample application do you mean?

Thanks!
Dampi

 

[urskaush]

Cocoa FTP

Hi everyone
i am a newbie to cocoa... Pls anyone suggest me how to download Connectionkit...

http://opensource.utr-software.com/source/connection...

How to proceed with the above link for downloading ..i am confused..


Thank you

 

[dampi]

It is exactly like described on http://opensource.utr-software.com/connection/download.html

Just go to console and type "svn co http://opensource.utr-software.com/source/connection"
Doing so you check out the source code from a repositery

You can even use XCode with SCM for doing this.

HTH
Damian

 

[machros]

Cocoa FTP

Hi


I want to create my own FTP .. i am new to cocoa... Please anyone suggest me which is the best way for creating FTP....using connectionkit or core foundation network.. thank you in advance..

 

[robbieduncan]

using connectionkit or core foundation network

If you use core foundation you will need to implement the entire protocol yourself. It'll be much easier to use connectionkit where this has been done for you.

 

[urskaush]

Cocoa FTP

Hi
Thank you.. Ya that is true ... But is there any documentation for connection kit framework?.. And how abt the support for multiple downloads...