Re: Uploading file to auth http server, when login url is different to upload url??
Re: Uploading file to auth http server, when login url is different to upload url??
- Subject: Re: Uploading file to auth http server, when login url is different to upload url??
- From: Rudi Sherry <email@hidden>
- Date: Wed, 01 Nov 2006 11:44:32 -0800
Hi Theodore,
It is complicated; passing POST parameters as parts of forms involves
quite a bit of tomfoolery. I looked at the source for W3 client,
though, and it's about 1700 lines for the two files comprising over
750 line of C++ code. I'm very impressed at what you consider "easy" ;)
You should not have to do anything http manually on the mac; you can
use NSURLConnection, NSMutableURLRequest and -- yes -- a delegate of
your own writing. You can set the method and store the user/password
(this is more complicated than Windows), but you can use the same
delegate for both.
You will still have to put together the POST buffer manually from the
arguments, but you should be able to use the W3Client sources to do
that; as far as I can tell HTTP_ARGS should port fairly easily, it
mostly uses standard C++ and the templates.
Here is some "starter kit" code, perhaps it will help. It doesn't
handle errors, it doesn't create the POST buffer.. hope it helps.
-- Rudi
@interface W3Client : NSObject
{
NSString *mUser;
NSString *mPassword;
NSData *mArgData; // these should be vectors or lists but you get
the idea
NSString *mArgParam;
BOOL mDone;
}
- (W3Client *) initWithUser: (NSString *) user password: (NSString *)
password;
- (void) firstConnectToURL: (NSURL *) URL;
- (void) addPostArgument: (NSString *) argName (NSData *) argData;
- (void) postThisData: (NSData *) data toURL: (NSURL *) URL;
- (void)connection:(NSURLConnection *)connection
didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)
challenge;
-(NSURLRequest *)connection:(NSURLConnection *)connection
willSendRequest:(NSURLRequest *)request redirectResponse:
(NSURLResponse *)redirectResponse;
- (void) dealloc;
@end
@implementation W3Client
- (W3Client *) initWithUser: (NSString *) user password: (NSString *)
password
{
self = [ super init ];
if ( self != nil )
{
mUser = [ user retain ];
mPassword = [ password retain ];
mDone = NO;
}
return self;
}
- (void)connection:(NSURLConnection *)connection
didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)
challenge
{
[ [ challenge sender ] useCredential: [ NSURLCredential
credentialWithUser:
mUser password:
mPassword persistence: NSURLCredentialPersistenceForSession ]
forAuthenticationChallenge: challenge ];
}
-(NSURLRequest *)connection:(NSURLConnection *)connection
willSendRequest:(NSURLRequest *)request redirectResponse:
(NSURLResponse *)redirectResponse
{
return request;
}
- (void) addPostArgument: (NSString *) argName (NSData *) argData
{
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
mDone = YES;
}
- (void)connection:(NSURLConnection *)connection didFailWithError:
(NSError *)error
{
mDone = YES;
}
- (void) dealloc
{
[ mUser release ];
[ mPassword release ];
[ mArgData release ];
[ mArgName release ];
[ super dealloc ];
}
- (void) firstConnectToURL: (NSURL *) URL
{
NSURLRequest *r = [ NSURLRequest requestWithURL: URL ];
NSURLConnection *c = [ NSURLConnection connectionWithRequest: r
delegate: self ];
while ( !mDone )
[ [ NSRunLoop currentRunLoop ] runMode: NSDefaultRunLoopMode
beforeDate: [ NSDate dateWithTimeIntervalSinceNow: 0.2 ] ];
}
- (void) postToURL: (NSURL *) URL
{
NSMutableURLRequest *r = [ NSMutableURLRequest requestWithURL: URL ];
[ r setHTTPMethod: @"POST" ];
// The hard part: creating the data buffer from the parameters; left
to the reader as an exercise.
NSData *data = CreateDataFromArgs(mArgName, mArgData);
[ r setHTTPBody: data ];
NSURLConnection *c = [ NSURLConnection connectionWithRequest: r
delegate: self ];
while ( !mDone )
[ [ NSRunLoop currentRunLoop ] runMode: NSDefaultRunLoopMode
beforeDate: [ NSDate dateWithTimeIntervalSinceNow: 0.2 ] ];
}
- (void) addPostArgument: (NSString *) argName (NSData *) argData
{
// This can use the same std list and pairs as W3Client, for now just
one param.
mArgData = [ argData retain ];
mArgName = [ argName retain ];
}
@end
On Nov 1, 2006, at 9:20 AM, email@hidden wrote:
Message: 19
Date: Wed, 1 Nov 2006 17:18:40 +0000
From: "Theodore H. Smith" <email@hidden>
Subject: Uploading file to auth http server, when login url is
different to upload url??
To: Cocoa List <email@hidden>
Message-ID: <email@hidden>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
Hi people,
I'm trying to do something that is actually quite simple on the PC,
but for the Mac I'm finding this hard. So this is a bit of a shame
really.
I want to log into into a certain url with http auth by supplying a
name and password, and without breaking the http connection, then
upload a file to a different url!
It's done on the PC using this library called W3Client which was
found on codeproject.com:
W3Client w3;
w3.Connect("http://gdst2.simslearning.co.uk/learnwise";, username,
password); // logs in here
w3.AddPostArgument("course", strFile, TRUE);
w3.Request("/coursebuilder/importCourse/org/dep",
W3Client::reqPostMultipartsFormdata); // uploads!
See, easy!
w3.Request will connect to the URL "http://gdst2.simslearning.co.uk/
learnwise/coursebuilder/importCourse/org/dep"
So basically, it appends the thing to the URL it connected to.
The uploading is done via the Post argument thingy.
So, I can do this with 4 lines of code on the PC using W3Client.
I tried with curl, which eventually I found couldn't work, simply
because... I can't log into one url and then upload to another.
Believe me I tried all sorts of different combinations with curl. I
tried multiple connection attempts (calling curl then calling it
again after it completes). I tried passing two urls to curl, that
also failed because the login page refuses to login if I've got any
POST arguments!
It just won't work.
I don't see the ability to post arguments using Cocoa? And also the
API is really hard to use. It's delegate madness and class madness. I
must use about 4 classes and a delegate to do something I could do
with 4 lines of code with W3Client. W3Client is written for the Win32
API however. And even then I haven't seen http post with
NSURLConnection, and I haven't seen the ability to log into a
different page than you upload to.
So how can I upload using http post to a different url than the one I
logged in, to acheive what I did with the above 4 lines of W3Client
code?
Can Macs even do this?
Must I resort to writing my own socket wrapper and do all the http
stuff manually? :(
--
http://elfdata.com/plugin/
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