I'd like to know if it was possible, if a user wishes to subscribe to updates of my applications, take a form that is automatically subscribed to this newsletter at this address http://www.gseo.it/lists/?p=subscribe&id=2 (this is my mailing list with double opt in) but I'd like to know that a user can subscibe this newsletter directly from my iphone app.
Thanks
You could do an HTTP POST to that form using ASIFormDataRequest.
This isn't working code, but it might look something like:
NSURL *url = [NSURL URLWithString:#"http://www.gseo.it/lists/?p=subscribe&id=2"];
ASIFormDataRequest *request = [[[ASIFormDataRequest alloc] initWithURL:url] autorelease];
[request setPostValue:#"someone#example.com" forKey:#"email"];
[request startSynchronous];
You can get the library here.
Yes of course you can, open up a UIWebview with the the url provided. Don't forget that this may look not good in the iphone browser so providing a custom html code depending on the user agent may improve things.
Related
I am writing an app that displays content from a Wordpress Site, and also allows reading of comments as well as posting comments. I am handling logging in to leave a comment and posting a comment via XML-RPC. All that is working quite well. However, this particular site does not allow anonymous commenting. So, I need to allow Registering for an account through the app.
Currently, I take the desired "username" and "email" and submit via POST as follows:
ASIFormDataRequest *request = [[ASIFormDataRequest alloc] initWithURL:[NSURL URLWithString:#"http://www.lamebook.com/wp-signup.php"]];
[request setPostValue:#"example" forKey:#"user_name"];
[request setPostValue:#"example#test.com" forKey:#"user_test"];
[request setDelegate:self];
[request setDidFinishSelector:#selector(registerFinished:)];
[request setDidFailSelector:#selector(registerFailed:)];
[request startAsynchronous];
This works in that it will create the account. However, my issue is that in my registerFinished method:
- (void)registerFinished:(ASIFormDataRequest *)request {
NSString *response = [[NSString alloc] initWithData:[request responseData] encoding:NSASCIIStringEncoding];
NSLog(#"response %#", response);
}
The response is simply the HTML of the registration page. The HTML contains no information about the success or failure of the registration.
When using the webform the returned HTML has entries if any error occurred, for example:
<p class="error">Username must be at least 4 characters</p>
However, I do not seem to get these elements in the HTML I receive on the phone. Is there a proper way to do registration on the phone?
If you have access to the site, which I guess you do, you should be able to write a small plugin that let's you perform the registration by posting data to an URL specified by your plugin. This would be fairly simple, just hook up a function to the init action and check for the $_POST variable for any input.
Then simply use username_exists to check for existing users and wp_create_user to perform the registration. These functions will give return values that you in turn can send as a JSON reponse (or whatever is appropriate) back to you application.
In fact, my experience with XML-RPC is that it's somewhat limited, and not really up to date with the rest of WordPress, so I often make these little mini API's to handle situations like this. All that might have changed in the latest releases, however.
How to use post manner to transmit username and password in order to log in a website on iphone or ipad platform?
Some one has suggest me that use ASIHTTPRequest,but I don't know how to use it．
Can somebody help me ?Thank you ........
ASIHTTPRequest has one of the best how to use pages of any library I have ever encountered. It is located here: http://allseeing-i.com/ASIHTTPRequest/How-to-use
If you need to post to a web form you could do something like this:
#define kURLString #"https://yourwebsite.com"
NSURL *url = [NSURL urlWithString:kURLString];
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
[request setPostValue:#"myname" forKey:#"username"];
[request setPostValue:#"l33td00d" forKey:#"password"];
[request setDelegate:self];
[request startSynchronous];
Although in real life you may wish to run the request asynchronous. The details on how to do that are on the page I linked. It is defiantly worth reading.
I want to upload an image to my twitter profile using objective-c. I saw in the twitter API that I need to send a HTML post to http://twitter.com/account/update_profile_image.format and send the picture as a parameter. I am done with the authentication. I am stuck with the uploading. Maybe somebody can help me with sending the picture as a parameter?
You should be using NSURLRequests and NSURLConnection to perform the API requests. If this is true, all you need to do is create an NSMutableURLRequest, set it's URL to the Twitter image upload API URL, set the method to POST.
Then you'll need to create an NSData object to represent your image, which you can do using
NSData *myImageData = [[NSData alloc] initWithData:[myImage CGImage]];
I don't know what the parameter name is for Twitter's upload API, so for arguments sake, lets call it "image". The next thing you need to do is set the image data as the request's body for the "image" parameter, like this
NSString *bodyString = [NSString stringWithFormat:#"image=%#", [[[NSString alloc] initWithData:myImageData encoding:NSStringUTF8Encoding] autorelease]];
[myRequest setBody:bodyString];
Then you can just start your NSURLConnection with the request and it should upload.
If you’ve managed to get started, then this post on CocoaDev should help you set the uploading up. There’s a sample linked at the top too.
I recommend using ASIHTTPRequest
What is ASIHTTPRequest?
ASIHTTPRequest is an easy to use wrapper around the CFNetwork API that makes some of the more tedious aspects of communicating with web servers easier. It is written in Objective-C and works in both Mac OS X and iPhone applications.
It is suitable performing basic HTTP requests and interacting with REST-based services (GET / POST / PUT / DELETE). The included ASIFormDataRequest subclass makes it easy to submit POST data and files using multipart/form-data.
See this blog post for an example
Somthing like this
// See http://groups.google.com/group/twitter-development-talk/browse_thread/thread/df7102654c3077be/163abfbdcd24b8bf
NSString *postUrl = #"http://api.twitter.com/1/account/update_profile_image.json";
ASIFormDataRequest *req = [[ASIFormDataRequest alloc] initWithURL:[NSURL
URLWithString:postUrl]];
[req addRequestHeader:#"Authorization" value:[oAuth oAuthHeaderForMethod:#"POST"
andUrl:postUrl andParams:nil]];
[req setData:UIImageJPEGRepresentation(imageView.image, 0.8)
withFileName:#"myProfileImage.jpg"
andContentType:#"image/jpeg" forKey:#"image"];
[req startSynchronous];
NSLog(#"Got HTTP status code from Twitter after posting profile image: %d", [req
responseStatusCode]);
NSLog(#"Response string: %#", [req responseString]);
[req release];
I'm trying to make a log in or sign up feature for my web site in my iPhone app. My website is a content management system, and like any other CMS, it has log in and registration features. It also has permmissions, dependent on the user account. I think I would have to use UIWebView for this.
Are there any examples or tutorials I can examine?
Check out the documentation for NSURLRequest (and NSMutableURLRequest): you can use it to make a POST request to your login and registration pages, just like a web browser. You can write the form UI in Cocoa/Objective-C and then send the data to the server.
As far as displaying the result to the user, you'll have to figure out a way to either parse the returned HTML (bad idea) or modify your CMS to return JSON or XML to iPhone requests (better idea).
Edit: Here's some sample code, taken from an app I'm working on (it submits data to Last.fm using POST):
NSURL *url = [NSURL URLWithString:#"http://example.com/"];
NSString *str = #"This is my example data!";
// everything below here is directly from my app:
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:#"POST"];
[request setHTTPBody:[str dataUsingEncoding:NSUTF8StringEncoding]];
[request setValue:kLastFMClientUserAgent forHTTPHeaderField:#"User-Agent"];
[request setCachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData];
[request setHTTPShouldHandleCookies:NO];
*connection = [[NSURLConnection alloc] initWithRequest:request
delegate:self
startImmediately:YES];
It seems the only way to stay "in app" is to give them a UIWebView of the paypal mobile site and let them complete the transaction there, otherwise the user would need to use their API key.
Does this sound right and has anyone got or seen any sample code? I have to think this is a common piece of code.
UPDATE:
Will Apple allow this?
It is a charity app, so I am assuming there is no issue.
Re-UPDATE:
I assumed wrong.
Apple will not allow payments directly within apps using paypal. You have to re-direct to a web interface.
Re-Update:
As answered below this code may still be useful for the purchase of physical goods
Update:
Although this code works, App Store terms won't allow you to use this code within an app.
Original Answer:
I figured this out after some heavy API research. Below is a method that creates an HTTP POST to send to Paypal and makes an NSURLRequest. You can fill in the appropriate string format variables. I used HTTP Client to check what I was doing.
- (void)sendPayPalRequestPOST{
perfomingSetMobileCheckout=YES;
recordResults = FALSE;
NSString *parameterString = [NSString stringWithFormat:#"USER=%#&PWD=%#&SIGNATURE=%#&VERSION=57.0&METHOD=SetMobileCheckout&AMT=%.2f&CURRENCYCODE=USD&DESC=%#&RETURNURL=%#", userName, password, signature, self.donationAmount, #"Some Charge", returnCallURL];
NSLog(parameterString);
NSURL *url = [NSURL URLWithString:paypalUrlNVP];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:#"%d", [parameterString length]];
[theRequest addValue: msgLength forHTTPHeaderField:#"Content-Length"];
[theRequest setHTTPMethod:#"POST"];
[theRequest setHTTPBody: [parameterString dataUsingEncoding:NSUTF8StringEncoding]];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
if( theConnection ){
webData = [[NSMutableData data] retain];
[self displayConnectingView];
}else{
NSLog(#"theConnection is NULL");
}
}
After this you need to parse the response, grab the session key and create a UIWebView to take them to the mobile paypal site. Paypal lets you specify a "return URL" which you can make anything you want. Just keep checking the UIWebview in the delegate method for this address and then you know the transaction is complete.
Then you send one more HTTP Post (similar to the one above) to Paypal to finalize the transaction. You can find the API information in the Paypal Mobile Checkout API docs.
Apple will allow custom checkouts for physical purchases. I talked with them at the iPhone Tech Talks in London and they said that they will not support physical purchases with In App Purchase as they would have to deal with refunds, etc. They also referred to existing apps that have custom checkouts.
When you say "I assumed wrong" about Apple allowing charitable donations within an app, can you provide any more information? I'm working on an app and there's a requirement to allow charitable donations...I haven't been able to find anything from Apple strictly forbidding it, but I haven't been able to find an app that allows charitable donations in the store, either.
(I struggled with whether to post this here and not as a new top-level question, but you're the first person I've come across with direct knowledge about the charitable giving within an iPhone app question).
Is it not possible using Paypal's Mobile Payment Library?
https://www.x.com/community/ppx/xspaces/mobile/mep?view=overview
Depending on the complexity of your needs, PayPal's iOS SDK (released March 2013) might be the ticket.