In our development team we have implemented a WEB Service which will authenticate a client.
From the iPhone application we need to send the client's information to the web service and in order to do so, I have written the following function.
-(void)authenticateClient:(NSString*)theContractNumber
ClientCode:(NSString*)theClientCode
CellPhone:(NSString*)theCellPhone
appleID:(NSString*)theAppleID
{
NSLog(#"Begin Send the information to the Web Service",nil);
NSString *uid = [UIDevice currentDevice].uniqueIdentifier;
NSDictionary *formParams = [NSDictionary dictionaryWithObjectsAndKeys:
theClientCode, #"ClientCode",
theContractNumber, #"ContractCode",
theAppleID, #"AppleID",
#" ", #"AndroidID",
#" ", #"WindowsID",
uid, #"AppleDeviceID",
#" ", #"AndroidDeviceID",
#" ", #"WindowsDeviceID",
theCellPhone, #"TelephoneNumber"
, nil];
MKNetworkOperation *operation = [self.engine operationWithPath:#"/services/Authentication.ashx"
params: formParams
httpMethod:#"POST"];
[operation addCompletionHandler:
^(MKNetworkOperation *operation) {
NSLog(#"%#", [operation responseString]);
}
errorHandler:^(MKNetworkOperation *errorOperation, NSError *error) {
NSLog(#"%#", error);
}];
[self.engine enqueueOperation:operation] ;
}
the function works (or seems to works with no errors) but in fact it does not do anything. It passes from the [operation addCompletionHandler: block but it does not do anything. I have also executed it step by step and again I saw that the application reaches this line and then it executes it and directly goes to the [self.engine enqueueOperation:operation] line without going inside the code block.
Does anyone can help on this?
Thank you.
Related
I'm writing a REST API by using SlimFramework in server side and AFNetworking in client side.
I'd like to add a value in Header for Authorization so that I'm using AFJSONRequestSerializer before the POST. Here is my code:
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer = [AFJSONRequestSerializer serializer];
[manager.requestSerializer setValue:self.apikey forHTTPHeaderField:#"Authorization"];
[manager POST:url parameters:#{REST_PARAM_USERID: userId}
success:^(AFHTTPRequestOperation *operation, id responseObject) {
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
}];
But the failure callback is always called. I found that's because the parameters I passed to server are always null although they're not null when I debugged in my Xcode. When I comments out the requestSerializer then my server works well.I don't know what's the reason. Can anybody help? Thanks
When you use AFJSONRequestSerializer, your parameters will always be serialized as JSON in the body of the HTTP request. If your server is not expecting JSON, then you should either reconfigure your server, or not use AFJSONRequestSerializer.
If, for some reason, you want to send some parameters through normal URL encoding, and others through JSON, you'll need to manually append them to your URL like so:
NSString *urlWithParams = [NSString stringWithFormat:#"%#?%#=%#", url, REST_PARAM_USERID, userId"];
[manager POST:urlWithParams parameters:#{#"some other" : #"params"}
success:^(AFHTTPRequestOperation *operation, id responseObject) {
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
}];
I created a test application (using scaffold) at heroku and I built an iOS client (using AFNetworking 2) to this heroku application. I was trying to delete records from heroku using iOS app and It didn't work. I received 422 status error from server.
Looking at heroku logs I figure out that server is claiming for CSRF token. So I tried to do that with this code on my iOS client:
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer new];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:#"application/json", nil];
[manager DELETE:contact.url parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"JSON: %#", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Response: %#", [operation description]) ;
if (block) {
block(error);
}
NSLog(#"Error: %#", error);
}];
It didn't work.
How can I add CSRF token into http header on AFHTTPRequestOperationManager ?
Two things here:
If your server is complaining about a lack of a CSRF token, then forging one isn't going to be the correct solution. See this Stack Overflow answer for more information. While you're just starting to get everything up-and-running, you can temporarily disable this by commenting out the protect_from_forgery call in your API controller.
AFHTTPRequestOperationManager is initialized with an AFJSONResponseSerializer already, so you don't need to set that yourself. You can add a default X-XSRF-TOKEN (or whatever header by doing [manager.requestSerializer setValue:#"..." forHTTPHeaderField:#"..."];
With AFNetworking2 you customize http headers in request serializer. So you need to subclass the one you currently work with and add this logic there.
- (NSURLRequest *)requestBySerializingRequest:(NSURLRequest *)request
withParameters:(NSDictionary *)parameters
error:(NSError *__autoreleasing *)error {
NSMutableDictionary *modifiedParams = [parameters mutableCopy];
modifiedParams[#"your-header-name"] = #"you-header-value";
NSMutableURLRequest *res = [super requestBySerializingRequest:request
withParameters:modifiedParams
error:error];
return res;
}
I am trying to develop a simple app, which, retrieves data from Facebook, when the user connects to it.
After reading Facebook's example about how to retrieve User's photos and User's names, I just want to get information such as gender, city, e-mail, and date of birth, for example.
The following part, is where I got stuck:
- (void)populateUserDetails
{
if (FBSession.activeSession.isOpen) {
[[FBRequest requestForMe] startWithCompletionHandler:
^(FBRequestConnection *connection,
NSDictionary<FBGraphUser> *user,
NSError *error) {
if (!error) {
self.userNameLabel.text = user.name;
self.userProfileImage.profileID = user.id;
}
}];
}
}
My questions are:
Should I make a dictionary with all this data? (gender, city, e-mail, etc.)
-Also, I'm using the storyboard, can I use labels to all those data as Facebook's tutorial states, for the username?
I read in a couple of places that the method requestForMe isn't the appropriate one for the other type of data I am looking for. What would be the method for my requests?
First you must ask user for permissions to access his gender, email, city ...
You make a array with required permissions and add it to the openActiveSessionWithReadPermissions: method
NSArray *permissions = [[NSArray alloc] initWithObjects:#"user_birthday",#"user_hometown",#"user_location",#"email",#"basic_info", nil];
[FBSession openActiveSessionWithReadPermissions:permissions
allowLoginUI:YES
completionHandler:^(FBSession *session,
FBSessionState status,
NSError *error) {
}];
Then make a request like this to get informations you wanted
[FBRequestConnection startForMeWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
NSLog(#"%#", [result objectForKey:#"gender"]);
NSLog(#"%#", [result objectForKey:#"hometown"]);
NSLog(#"%#", [result objectForKey:#"birthday"]);
NSLog(#"%#", [result objectForKey:#"email"]);
}];
I hope i resolved your problem.
Here is a method I've written to connect to a server and get a user auth token:
+ (void)getAuthTokenForUsername:(NSString *)username
password:(NSString *)password
completionHandler:(void (^)(NSString *, NSError *))completionHandler
{
username = [username URLEncodedString];
password = [password URLEncodedString];
NSString *format = #"https://%#:%##api.example.com/v1/user/api_token?format=json";
NSString *string = [NSString stringWithFormat:format, username, password];
NSURL *URL = [NSURL URLWithString:string];
[NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:URL]
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse *URLResponse, NSData *data, NSError *error)
{
NSString *token;
if (data) {
NSDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
token = [NSString stringWithFormat:#"%#:%#", username, dictionary[#"result"]];
}
completionHandler(token, error);
}];
}
A URL then looks something like this: https://username:hello%C2%B0#api.example.com/v1/user/api_token?format\=json, where the password is hello°. The URLEncodedString method properly encodes everything as in the example, but the request never works. The problem is not with escaping or the server, because I can curl the same URL and I get nice JSON and authentication works, even though there is a non-ASCII character in the password. It also works from other programming languages like ruby or python. But the same url never works with NSURLConnection and it also doesn't work in Safari, which of course uses NSURLConnection. I get an 'The operation could not be completed' with a '401 Forbidden' every time.
(My code works fine when the password just contains ASCII characters. I also tried using the NSURLCredential methods, same problem.)
What do I need to do for NSURLConnection to work with such a URL as https://username:hello%C2%B0#api.example.com/v1/user/api_token?format\=json where the password contains non-ASCII characters?
I have just performed several tests against my mockup server and I think I have a solution for you.
First of all, when you add username & password to an URL, they are not actually send to the server as part of the URL. They are sent as part of the Authorization header (see Basic access authentication).
The fastest workaround for you is to do
NSURLRequest* request = [NSURLRequest requestWithURL:URL];
NSString* usernamePassword = [[NSString stringWithFormat:#"%#:%#", username, password] base64Encode];
[request setValue:[NSString stringWithFormat:#"Basic %#", usernamePassword] forHTTPHeaderField:#"Authorization"]
To understand the problem, let's go a bit deeper. Let's forget NSURLConnection sendAsynchronousRequest: and let us create an old-fashioned connection with a NSURLConnectionDelegate. Then in the delegate, let's define the following methods:
- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace {
return YES;
}
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
NSLog(#"Proposal: %# - %#", challenge.proposedCredential.user, challenge.proposedCredential.password);
NSURLCredential* credential = [NSURLCredential credentialWithUser:#"username"
password:#"hello°"
persistence:NSURLCredentialPersistenceNone];
[challenge.sender useCredential:credential forAuthenticationChallenge:challenge];
}
If you don't create these methods, the username & password from your URL won't ever be added to the HTTP header.
If you add them, you'll see that the proposed password is hello%C2%B0. Obviously, that's wrong.
You can see the problem directly from
NSLog(#"Password: %#", [[NSURL URLWithString:#"http://username:hello%C2%B0#www.google.com"] password]);
which prints
hello%C2%B0
I believe this is a bug in the framework. NSURL returns password encoded and NSURLCredential doesn't decode it so we are left with an invalid password.
So I'm trying to upload an XML file to a server with POST using AFNetworking.
So using example code from their site I have this set up. When it runs, something is uploaded to the server (or at least it leaves my computer). I can monitor the upload, when the upload is finished, the server recognizes that it completed and goes to load the file, but it loads an old XML. So its connecting properly to the server, but I'm not sure why the file upload isn’t working correctly. Also I just want to send the file, the server doesn’t need any headers or parameters etc.
So I'm wondering if I’ve stored the data correctly? Or if I'm not sending it the server properly or what? Any suggestions would be helpful
NSData *iTunesXMLData = [NSData dataWithContentsOfFile:filePath];
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
/* NSMutableURLRequest *request =[httpClientmultipartFormRequestWithMethod:#"POST"
path:#"/upload.php?id=5" parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
[formData appendPartWithFileData:iTunesXMLData name:#"iTunes Music Library" fileName:#"iTunes Music Library.xml" mimeType:#"application/xml"];
}];*/
//I tried this way also, both did the same thing
NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:#"POST" path:#"/upload.php?id=5" parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
[formData appendPartWithFormData:iTunesXMLData name:#"iTunes Music Library"];
}];`
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];`
NSLog(#"Operation: %#", operation);
[operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
NSLog(#"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);
}];
[operation start];
Have you tried to catch the success/failure of the operation? Try this after setUploadProgressBlock:
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
// Operation ended successfully
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
// Something happened!
NSLog(#"ERROR: %#, %#", operation, error);
// Here you can catch operation.responseString to see the response of your server
}];
This is an easy way to know what your server returned. If something uploads to your server, double check that you're getting the right file. AFAIK, your AFNetwork seems ok.