How to validate Username and password with Webserver values in I phone application

How to validate Username and password with Webserver values in I phone application - objective-c

I am developing view based application.I have login page when we click on Login button it should check entered values with webserver values and it should display vali or invalid.I have wriiten code in this way it is executing successfully i am getting the result in this way
<!DOCTYPE html PUbLIC" -//W3C//DTD XHTML 1.0 Strict....
What i need to change in below code to comapre with server values..can any one help me regarding this please...
-(IBAction)buttonClick:(id)sender
{
NSString* username = nameInput.text;
NSString* pass = passInput.text;
if([nameInput.text isEqualToString:#"" ]|| [passInput.text isEqualToString:#""])
{
greeting.text = #"Input Your Value";
[nameInput resignFirstResponder];
[passInput resignFirstResponder];
return;
}
NSString *post =
[[NSString alloc] initWithFormat:#"uname=%#&pwd=%#",username,pass];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSURL *url = [NSURL URLWithString:#"https://108.16.210.28/Account/LogOn"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
[theRequest setHTTPMethod:#"POST"];
[theRequest setValue:postLength forHTTPHeaderField:#"Content-Length"];
[theRequest setHTTPBody:postData];
[NSURLRequest setAllowsAnyHTTPSCertificate:YES forHost:[url host]];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
if( theConnection )
{
webData = [[NSMutableData data] retain];
}
else
{
}
[nameInput resignFirstResponder];
[passInput resignFirstResponder];
nameInput.text = nil;
passInput.text = nil;
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[webData setLength: 0];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[webData appendData:data];
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
[connection release];
[webData release];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSString *loginStatus = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding];
NSLog(loginStatus);
greeting.text = loginStatus;
[loginStatus release];
[connection release];
[webData release];
}
- (void)dealloc {
[super dealloc];
}
#end

Use statusCode to see the login state.
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{
if([response isKindOfClass:[NSHTTPURLResponse class]])
{
NSHTTPURLResponse *theResponse = (NSHTTPURLResponse*)response;
NSInteger theStatusCode = [theResponse statusCode];
}
}

you have to parse the data.If it is in the form of XML data then you have to parse the element (like valid) in the didfoundcharacters.If it is valid then make a variable like BOOL confirm = NO;Modify this in the didfoundcharacters.if (confirm) then give access further

Related

how can I use NSURLConnection Asynchronously?

I am using this code to load data to my App, can you tell me how can I make this asynchronously?
NSMutableURLRequest *request2 = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:requestString] cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:10.0];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request2 delegate:self];
if (connection)
{
NSLog(#"NSURLConnection connection==true");
NSURLResponse *response;
NSError *err;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request2 returningResponse:&response error:&err];
self.news =[NSJSONSerialization JSONObjectWithData:responseData options:nil error:nil];
NSLog(#"responseData: %#", self.news);
}
else
{
NSLog(#"NSURLConnection connection==false");
};

I think you should be bothered reading the documentation. There's a sendAsynchronousRequest:queue:completionHandler: method.

Create the connection with initWithRequest:delegate:startImmediately:, set yourself as its delegate and implement the delegate methods.

Block code is your friend. I have created a class which does this for you
Objective-C Block code. Create this class here
Interface class
#import <Foundation/Foundation.h>
#import "WebCall.h"
#interface WebCall : NSObject
{
void(^webCallDidFinish)(NSString *response);
}
#property (nonatomic, retain) NSMutableData *responseData;
-(void)setWebCallDidFinish:(void (^)(NSString *))wcdf;
-(void)webServiceCall :(NSString *)sURL_p : (NSMutableArray *)valueList_p : (NSMutableArray *)keyList_p;
#end
Implementation class
#import "WebCall.h"
#import "AppDelegate.h"
#implementation WebCall
#synthesize responseData;
-(void)setWebCallDidFinish:(void (^)(NSString *))wcdf
{
webCallDidFinish = [wcdf copy];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
NSHTTPURLResponse* httpResponse = (NSHTTPURLResponse*)response;
int responseStatusCode = [httpResponse statusCode];
NSLog(#"Response Code = %i", responseStatusCode);
if(responseStatusCode < 200 || responseStatusCode > 300)
{
webCallDidFinish(#"failure");
}
[responseData setLength:0];
}
- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace
{
return [protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust];
}
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
{
[challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust] forAuthenticationChallenge:challenge];
[challenge.sender continueWithoutCredentialForAuthenticationChallenge:challenge];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[responseData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
NSLog(#"WebCall Error: %#", error);
webCallDidFinish(#"failure");
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSString *response = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
response = [response stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
webCallDidFinish(response);
}
-(void)webServiceCall :(NSString *)sURL_p : (NSMutableArray *)valueList_p : (NSMutableArray *)keyList_p
{
NSMutableString *sPost = [[NSMutableString alloc] init];
//If any variables need passed in - append them to the POST
//E.g. if keyList object is username and valueList object is adam will append like
//http://test.jsp?username=adam
if([valueList_p count] > 0)
{
for(int i = 0; i < [valueList_p count]; i++)
{
if(i == 0)
{
[sPost appendFormat:#"%#=%#", [valueList_p objectAtIndex:i],[keyList_p objectAtIndex:i]];
}
else
{
[sPost appendFormat:#"&%#=%#", [valueList_p objectAtIndex:i], [keyList_p objectAtIndex:i]];
}
}
}
NSData * postData = [sPost dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:NO];
NSString * postLength = [NSString stringWithFormat:#"%d",[postData length]];
NSURL * url = [NSURL URLWithString:sURL_p];
NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:5];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:postData];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES];
if (theConnection)
{
self.responseData = [NSMutableData data];
}
}
#end
Then you to make this web call, you call it like this
WebCall *webCall = [[WebCall alloc] init];
[webCall setWebCallDidFinish:^(NSString *response){
//This method is called as as soon as the web call is finished
NSString *trimmedString = [response stringByTrimmingCharactersInSet:
[NSCharacterSet whitespaceAndNewlineCharacterSet]];
if([trimmedString rangeOfString:#"failure"].location == NSNotFound)
{
//Successful web call
}
else
{
//If the webcall failed due to an error
}
}];
//Make web call here
[webCall webServiceCall:#"http://www.bbc.co.uk/" :nil :nil];
See the setWebCallDidFinish method, it will not be called until the webcall has finished.
Hope that helps!!

Here is some code which I am using in my app:
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:yourURL]];
[NSURLConnection sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
if (error) {
NSLog(#"Error loading data from %#. Error Userinfo: %#",yourURL, [error userInfo]);
} else {
NSDictionary *dataFromServer = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
contentAsString = [[[dataFromServer objectForKey:#"page"] objectForKey:#"content"] stripHtml];
completionHandler(contentAsString);
}];
fyi: stripHTML is a NSString Category to remove HTML tags from JSON --> Found it Here
you can call your content in your class like that:
[yourClass getDataWithcompletionHandler:^(NSString *content) {
yourObject.content = content;
[yourClass saveManagedObjectContext];
}];
if you implement it once, you won't want to use synchronous connection again...

Check this out: HTTPCachedController
It will help you send POST and GET requests, while it will cache the response and after that it will return the cached data when no internet connection is available.
HTTPCachedController *ctrl = [[[HTTPCachedController alloc] initWithRequestType:1 andDelegate:self] autorelease];
[ctrl getRequestToURL:#"https://api.github.com/orgs/twitter/repos?page=1&per_page=10"];
You will get notified when the data are fetched through a delegate method:
-(void)connectionFinishedWithData:(NSString*)data andRequestType:(int)reqType

iOs receivedData from NSURLConnection is nil

I was wondering if anyone could point out why I'm not able to capture a web reply. My NSLog shows that my [NSMutableData receivedData] has a length of 0 the entire run of the connection. The script that I hit when I click my login button returns a string. My NSLog result is pasted below, and after that I've pasted both the .h and .m files that I have.
NSLog Result
2012-11-28 23:35:22.083 [12548:c07] Clicked on button_login
2012-11-28 23:35:22.090 [12548:c07] theConnection is succesful
2012-11-28 23:35:22.289 [12548:c07] didReceiveResponse
2012-11-28 23:35:22.290 [12548:c07] didReceiveData
2012-11-28 23:35:22.290 [12548:c07] 0
2012-11-28 23:35:22.290 [12548:c07] connectionDidFinishLoading
2012-11-28 23:35:22.290 [12548:c07] 0
ViewController.h
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController
// Create an Action for the button.
- (IBAction)button_login:(id)sender;
// Add property declaration.
#property (nonatomic,assign) NSMutableData *receivedData;
#end
ViewController.m
#import ViewController.h
#interface ViewController ()
#end
#implementation ViewController
#synthesize receivedData;
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
NSLog(#"didReceiveResponse");
[receivedData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
NSLog(#"didReceiveData");
[receivedData appendData:data];
NSLog(#"%d",[receivedData length]);
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
NSLog(#"connectionDidFinishLoading");
NSLog(#"%d",[receivedData length]);
}
- (IBAction)button_login:(id)sender {
NSLog(#"Clicked on button_login");
NSString *loginScriptURL = [NSString stringWithFormat:#"http://www.website.com/app/scripts/login.php?"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:loginScriptURL]];
NSString *postString = [NSString stringWithFormat:#"&paramUsername=user&paramPassword=pass"];
NSData *postData = [postString dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
[theRequest setHTTPMethod:#"POST"];
[theRequest setHTTPBody:postData];
// Create the actual connection using the request.
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
// Capture the response
if (theConnection) {
NSLog(#"theConnection is succesful");
} else {
NSLog(#"theConnection failed");
}
}
#end

The issue is you are not initializing the receivedData instance. Just change your property like:
#property (nonatomic, retain) NSMutableData *receivedData;
And change the methods like:
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
NSLog(#"didReceiveResponse");
[self.receivedData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
NSLog(#"didReceiveData");
[self.receivedData appendData:data];
NSLog(#"%d",[receivedData length]);
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(#"connectionDidFinishLoading");
NSLog(#"%d",[receivedData length]);
}
- (IBAction)button_login:(id)sender
{
NSLog(#"Clicked on button_login");
NSString *loginScriptURL = [NSString stringWithFormat:#"http://www.website.com/app/scripts/login.php?"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:loginScriptURL]];
NSString *postString = [NSString stringWithFormat:#"&paramUsername=user&paramPassword=pass"];
NSData *postData = [postString dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
[theRequest setHTTPMethod:#"POST"];
[theRequest setHTTPBody:postData];
// Create the actual connection using the request.
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
// Capture the response
if (theConnection)
{
NSLog(#"theConnection is succesful");
self.receivedData = [NSMutableData data];
} else
{
NSLog(#"theConnection failed");
}
}

Please try "%i" instead of %d in nslog

You can try the following code May be help you.
- (IBAction)button_login:(id)sender {
NSLog(#"Clicked on button_login");
NSMutableDictionary *dictionnary = [NSMutableDictionary dictionary];
[dictionnary setObject:#"user" forKey:#"Username"];
[dictionnary setObject:#"pass" forKey:#"Password"];
NSError *error = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dictionnary
options:kNilOptions
error:&error];
NSString *urlString = #"Sample URL";
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:#"POST"];
[request setHTTPBody:jsonData];
NSURLResponse *response = NULL;
NSError *requestError = NULL;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&requestError];
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding] ;
NSLog(#"%#", responseString);
}
if it is a GET Request then, can you try link : /login.php?username=admin&password=1212‌3
- (IBAction)button_login:(id)sender {
NSLog(#"Clicked on button_login");
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"/login.php?username=adm‌in&password=1212‌3"]];
// Perform request and get JSON as a NSData object
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSLog(#"response=%#",response );
}
and use this code.

how to call under viewdid load data when button click event action is done

I am developing Viewbased application.I have method look like this.-(IBAction)switchPage:(id)sender this method is button click event action. Now when we click on button it should load under view did load data but it is not loading can any one help regarding this
-(IBAction)switchPage:(id)sender
{
if(self.viewTwoController == nil)
{
ViewTwoController *viewTwo = [[ViewTwoController alloc]
initWithNibName:#"View2" bundle:[NSBundle mainBundle]];
self.viewTwoController = viewTwo;
[viewTwo release];
}
[self.navigationController pushViewController:self.viewTwoController animated:YES];
[connection release];
}
//in viw did load i have this code
- (void)viewDidLoad {
[super viewDidLoad];
responseData = [[NSMutableData data] retain];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://108.16.210.28/Account/LogOn"]];
[[NSURLConnection alloc] initWithRequest:request delegate:self];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
[responseData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[responseData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
// label.text = [NSString stringWithFormat:#"Connection failed: %#", [error description]];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
[connection release];
NSString *post =[[NSString alloc] initWithFormat:#"usernameField=%#&passwordField=%#",usernameField.text,passwordField.text];
NSURL *url=[NSURL URLWithString:#"https://108.16.210.28/SSLLogin/Account/LogOn"];
NSLog(post);
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
/* when we user https, we need to allow any HTTPS cerificates, so add the one line code,to tell teh NSURLRequest to accept any https certificate, i'm not sure about the security aspects
*/
[NSURLRequest setAllowsAnyHTTPSCertificate:YES forHost:[url host]];
NSError *error;
NSURLResponse *response;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *data=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(#"%#",data);
}
enter code here

As an optimization, NSViewControllers don't load their views until the last moment, i.e. when the view is actually accessed. So to load your view immediately just call [viewTwoController view] after its initialization and nib will be loaded, and your viewDidLoad method will be called.
Edit: Your code would look like this:
-(IBAction)switchPage:(id)sender {
if(self.viewTwoController == nil) {
ViewTwoController *viewTwo = [[ViewTwoController alloc]
initWithNibName:#"View2" bundle:[NSBundle mainBundle]];
self.viewTwoController = viewTwo;
[viewTwo release];
[viewTwo view] // calls loadView, loads the nib then calls viewDidLoad
}
[self.navigationController pushViewController:self.viewTwoController animated:YES];
[connection release];
}

iphone tableview & webservice

I have a tableview, when the user selects a row i call a webservice depending on which row is selected.
my problem is i can connect to the webservice but i dont get any response from the webservice. I used soap client to test if webservice is working correctly or not.
//rootviewcontroller.m
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {....
//call to webservice
[self connectToWebService];
}
On debugging i found that my code does not go to any of the following methods
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *) response{}
-(void) connection:(NSURLConnection *) connection didReceiveData:(NSData *) data {}
-(void) connection:(NSURLConnection *) connection didFailWithError:(NSError *) error{}
-(void) connectionDidFinishLoading:(NSURLConnection *) connection {}
any suggestions where am i going wrong???
thanks
-(void)connectToWebService
{
NSString *soapMsg = [NSString stringWithFormat:
#"<?xml version=\"1.0\" encoding=\"utf-8\"?>"
"<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">"
"<soap:Body>"
" <GetCount xmlns=\"http://192.168.1.104/Service1\">"
"<PropId>718</PropId>"
"</GetCount>"
"</soap:Body>"
"</soap:Envelope>"];
NSURL *url = [NSURL URLWithString:
#"http://192.168.1.104/defpath/service1.asmx"];
NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
//---set the headers---
NSString *msgLength = [NSString stringWithFormat:#"%d",[soapMsg length]];
[req addValue:#"text/xml; charset=utf-8"
forHTTPHeaderField:#"Content-Type"];
[req addValue:#"http://192.168.1.104/defpath/Service1/GetCount"
forHTTPHeaderField:#"SOAPAction"];
[req addValue:msgLength forHTTPHeaderField:#"Content-Length"];
//---set the HTTP method and body---
[req setHTTPMethod:#"POST"];
[req setHTTPBody: [soapMsg dataUsingEncoding:NSUTF8StringEncoding]];
conn = [[NSURLConnection alloc] initWithRequest:req delegate:self];
if (conn) {
webData = [[NSMutableData data] retain];
}

i do not know if your problem is solved :
you can get the answer like that :
-(void) connection:(NSURLConnection *) connection //Recive response
didReceiveResponse:(NSURLResponse *) response {
[webData setLength: 0];
}
-(void) connection:(NSURLConnection *) connection //Repeative call method and append data to webData
didReceiveData:(NSData *) data {
[webData appendData:data];
}
-(void) connection:(NSURLConnection *) connection//If error occure error should be displayed
didFailWithError:(NSError *) error {
NSLog(#"Problème de connexion au service web appelé");
[webData release];
[connection release];
}
-(void) connectionDidFinishLoading:(NSURLConnection *) connection {
NSLog(#"OK. Bytes reçues: %d", [webData length]);
NSString *theXML = [[NSString alloc]
initWithBytes: [webData mutableBytes]
length:[webData length]
encoding:NSUTF8StringEncoding];
//---shows the XML---
NSLog(theXML);
[theXML release];
}

Spin screen with connection

I would like to know how to do the next:
I have one app that make some connections to receive data (this data is shown in the screen)
I would like to know which code I can use to wait each connection, I mean, the time between the connection start and this finish I would like to show in the screen one spin (Loading...).
I have created the connections, and the spin. My problem is that I don't know which code I can use to manage this and where to write this code.

You should look at using NSURLConnection with a delegate. An NSURLConnection lets you get data from a server asynchronously (it runs in the background, and notifies the delegate when certain events happen).
Then, in your view controller class, you can start the spinner right before you launch the connection, and have one of your delegate methods stop the spinner when the connection finishes.

this is my code in the class: Connection.h, and i create an object Connection in every class where i want to call a new connection to get data (i don't know then if this is the correct way to do)
import "Connection.h"
import "XMLParser.h"
#implementation Connection
#synthesize webData, soapResults, xmlParser;
-(Connection *) Init:(NSInteger *) methodNumber{
[super init];
methodNum = methodNumber;
return self;
}
-(void)Connect:(NSString *) soapMessage{
NSLog(soapMessage);
NSURL *url = [NSURL URLWithString:#"http://.....?WSDL"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:#"%d", [soapMessage length]];
[theRequest addValue: #"text/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[theRequest addValue: msgLength forHTTPHeaderField:#"Content-Length"];
[theRequest setHTTPMethod:#"POST"];
[theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];
//NSURLConnection *theConnection = [NSURLConnection connectionWithRequest:theRequest delegate:self];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
[theConnection start];
if( theConnection )
{
webData = [[NSMutableData data] retain];
}
else
{
NSLog(#"theConnection is NULL");
}
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[webData setLength: 0];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[webData appendData:data];
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
NSLog(#"ERROR with theConenction");
[connection release];
[webData release];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(#"DONE. Received Bytes: %d", [webData length]);
NSString *theXML = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding];
NSLog(theXML);
[theXML release];
if( xmlParser )
{
[xmlParser release];
}
xmlParser = [[NSXMLParser alloc] initWithData: webData];
//Initialize the delegate.
XMLParser *parser = [[XMLParser alloc] initXMLParser:methodNum];
//Set delegate
[xmlParser setDelegate:parser];
//[xmlParser setDelegate: self];
[xmlParser setShouldResolveExternalEntities: YES];
[xmlParser parse];
[connection release];
[webData release];
}
#end

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How to validate Username and password with Webserver values in I phone application - objective-c

you have to parse the data.If it is in the form of XML data then you have to parse the element (like valid) in the didfoundcharacters.If it is valid then make a variable like BOOL confirm = NO;Modify this in the didfoundcharacters.if (confirm) then give access further

Related

how can I use NSURLConnection Asynchronously?

iOs receivedData from NSURLConnection is nil

how to call under viewdid load data when button click event action is done

iphone tableview & webservice

Spin screen with connection

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