I want to build up a login page and the values of this page i want to submit in server through a specific link. can any one send the code that how i will send the data into server?
Here's an example using NSURLConnection to send POST parameters:
// Note that the URL is the "action" URL parameter from the form.
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL #"http://www.whereq.com:8079/answer.m"]];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"content-type"];
//this is hard coded based on your suggested values, obviously you'd probably need to make this more dynamic based on your application's specific data to send
NSString *postString = #"paperid=6&q77=2&q80=blah";
NSData *data = [postString dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPBody:data];
[request setValue:[NSString stringWithFormat:#"%u", [data length]] forHTTPHeaderField:#"Content-Length"];
[NSURLConnection connectionWithRequest:request delegate:self];
Related
Is it possible to check the data which I have sent in HTTP POST request, by logging the request in XCode.
Here is my code:
NSString *post = [NSString stringWithFormat:#"Firstname=%#&Lastname=%#&Email=%#",firstName,lastName,emailId];
NSLog(#"%#", post);
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d",[postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:#"http://www.abcde.com/xyz/login.aspx"]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
**NSLog(#"%#", request );**
NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];
I am logging the request as shown above in Bold. But here I am able to see only my Url and not any post data.
If it is not possible to see data here where can I see the data sent in http request.
If you want just check what data are you sending then I suggest you to use this awesome tool http://www.charlesproxy.com. It's very simple and powerful.
Just run Charles and do your request via simulator.
I'm trying to connect to a server which requires a username and password for Authentication. My code is the following:
NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:#"username:password" forHTTPHeaderField:#"Authorization"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
But this does not work, I always get an error message:
title>401 Authorization Required</title>
</head><body>
<h1>Authorization Required</h1>
<p>This server could not verify that you
are authorized to access the document
requested. Either you supplied the wrong
credentials (e.g., bad password), or your
browser doesn't understand how to supply
the credentials required.</p>
When I try to connect to a server which doesn't nee an Authentication this code code works great. So, how to set the username and password correctly?
You should specify the domain of server, try this format:
NSString *authen = [NSString stringWithFormat:#"%#\\%#:%#", m_domain,
m_account, m_password];
[request setValue:authen forHTTPHeaderField:#"Authorization"];
this work for me!
Im trying to send a data or what it seems to a form that is on the website, the action is freecontactformprocess.php and my code goes like this,
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:#"http://www.irabwah.com/freecontactformprocess.php"]];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"content-type"];
NSString *postString = [NSString stringWithFormat:#"Full_Name=%#&Email_Address=%#&Telephone_Number=%#&Your_Message=%#&AntiSpam=25",_fNameLabel.text, _emailLabel.text,_phoneLabel.text, _commentText.text];
NSData *data = [postString dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPBody:data];
[request setValue:[NSString stringWithFormat:#"%u", [data length]] forHTTPHeaderField:#"Content-Length"];
NSURLConnection *conn = [NSURLConnection connectionWithRequest:request delegate:self];
if(conn){
NSLog("Successfull!!");
}
the purpose of this form is to send an email into my account which I integrated into the form on installation of this plugin, but the thing is I doesn't seems to get a the email when I run my test app, and when Im inputing values I don't include spaces yet.
The form looks like this,
i m developing an ipad app for hospital management were information is filled in the user interface and on the click of a button the data is to be transfered to an external database(which later be viewed)...what are the steps required
You need to set up a webservice (like Saurabh said), for instance a PHP file using an mySQL connection would do fine.
To post the data (unsecured) to the service you can dome something like this:
NSString *post = #"key1=val1&key2=val2";
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:#"http://www.someurl.com"]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content- Type"];
[request setHTTPBody:postData];
NSURLConnection *conn=[[NSURLConnection alloc] initWithRequest:request delegate:self];
Read the NSURLConnection documentation
You need to create webservices on your server to add data in your database
see the answer of this question to know how to send data
Send data from an iPhone to a Web service
I'm building a request that will be a simple http POST. Inside this post I need to add a few items and one of these is a large viewstate string that is pulled down during a previous request. What I've noticed is that the raw request needs to have all special chars escaped (like the below)
_EVENTTARGET=&_EVENTARGUMENT=&__VIEWSTATE=%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%3D&
But I'm not certain that I've done this in objective-c. Currently when I NSLog out the viewstate string it is still showing / and = characters.
Can anyone verify I'm on the right path here? And if not how would I convert the special chars in viewstate (ie - instead of = I should get %3D)?
- (void)doHttpPostWithViewState:(NSString *)viewstate
{
responseData = [[NSMutableData data] retain];
NSURL *url = [NSURL URLWithString:#"https://localhost/Login"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
NSString* theBodyString = [[NSString alloc] initWithFormat:#"__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=%#",viewstate];
NSData *requestData = [theBodyString dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary * headers = [NSHTTPCookie requestHeaderFieldsWithCookies:cookies];
[request setHTTPMethod:#"POST"];
[request setValue:#"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setValue:[NSString stringWithFormat:#"%d", [requestData length]] forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody: requestData];
[request setAllHTTPHeaderFields:headers];
[[NSURLConnection alloc] initWithRequest:request delegate:self];
}
And finally, for local debugging purposes- how can I use NSLog to view the final (raw) string that will be sent to the client? Thank you in advance!
Update
Turns out this is a bug in the stringByAddingPercentEscapesUsingEncoding method
I've found the following to work from this blog post
NSString * cleanViewState = (NSString *)CFURLCreateStringByAddingPercentEscapes(
NULL,
(CFStringRef)viewstate,
NULL,
(CFStringRef)#"!*'();:#&=+$,/?%#[]",
kCFStringEncodingUTF8 );
You're probably looking for the stringByAddingPercentEscapesUsingEncoding: method on NSString to %-encode your POST request.
Update:
If the NSString method isn't getting all the special characters you need, the next step is to drop down to the Core Foundation level function (CFURLCreateStringByAddingPercentEscapes), which gives you better control. See http://simonwoodside.com/weblog/2009/4/22/how_to_really_url_encode/