How send text to HTTP POST? - ios

Question

In my app I am using this code for sending parameters name, email, website url and comment in blog...Probably some value are wrong setting...Someone can help me solved? I'm going crazy!! Thanks in advance!
-(void)invia{
[self.connessione cancel];
NSURL *indirizzo = [NSURL URLWithString:#"http://*********ina.altervista.org/********/feed/"];
//initialize a request from url
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[indirizzo standardizedURL]];
[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[request setHTTPShouldHandleCookies:NO];
[request setHTTPMethod:#"POST"];
NSDictionary *parametri = [NSDictionary dictionaryWithObjectsAndKeys:
campoSito.text, #"url",
campoNome.text, #"author",
campoEmail.text, #"email",
campoCommento.text, #"content", nil];
NSString *dati_postati=[NSString stringWithFormat:#"%#",parametri];
[request setValue:#"application/x-www-form-urlencoded; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:[dati_postati dataUsingEncoding:NSUTF8StringEncoding]];
//initialize a connection from request
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
self.connessione = connection;
//start the connection
[connection start];
[self dismissViewControllerAnimated:YES completion:nil];
campoCommento.text=nil;
campoEmail.text=nil;
campoSito.text=nil;
campoNome.text=nil;
}
EDIT:
#Rich I've tried to read the API documentation for the web service, more precisely the part which concern "Create a Comment on a Post",I think my site ID concern the article is "gnutella"...I do not think there is a numeric id...from which I extract the id?
UPDATE:
I've extract Post ID from article...is 1757
I've tried with this URL without success
NSURL *indirizzo = [NSURL URLWithString:#"http://zenzeroincucina.altervista.org/gnutella/1757/"];
NSURL *indirizzo = [NSURL URLWithString:#"http://zenzeroincucina.altervista.org/gnutella/1757/replies/new"];
NSURL *indirizzo = [NSURL URLWithString:#"http://zenzeroincucina.altervista.org/wp-admin/post.php?post=1757&action=edit"];
Another code method:
#define kSendCommentJSON #"?json=respond.submit_comment"
NSURL *completeURL = [NSURL URLWithString:[NSString stringWithFormat:#"http://zenzeroincucina.altervista.org/gnutella/feed/"]];
AFHTTPClient *httpClient = [AFHTTPClient clientWithBaseURL:completeURL];
NSDictionary *parametri = [NSDictionary dictionaryWithObjectsAndKeys:
campoSito.text, #"url",
campoNome.text, #"author",
campoEmail.text, #"email",
campoCommento.text, #"content", nil];
NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:#"POST" path:#"" parameters:parametri constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
//
}];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Completed Successfullly");
//[self commentPostSuccess];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Failed misurable %#", [error description]);
//[self commentPostFailed];
}];
[operation start];
I've tried with this method...not yet!!
Console return successfully but text is not sent correctly...
Also tested on device(for exclusion a possible bug)...nothing!

Answer 1

You need to send the parameters correctly in the format key=value&key=value, not just as description of a NSDictionary.
NSDictionary *parametri = [NSDictionary dictionaryWithObjectsAndKeys:
campoSito.text, #"url",
campoNome.text, #"author",
campoEmail.text, #"email",
campoCommento.text, #"content", nil];
NSMutableArray *values = [NSMutableArray new];
[parametri enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
// Create an encoded parameter pair -> k=v
NSString *p = [NSString stringWithFormat:#"%#=%#", key, [[obj description] stringByAddingPercentEscapesUsingEncoding:NSUTF8Encoding]];
[values addObject:p];
}];
NSString *dati_postati = [values componentsJoinedByString:#"&"];
UPDATE:
So after looking at the POST request that is sent (on this page:
HTTP POST http://zenzeroincucina.altervista.org/wp-comments-post.php
Host: zenzeroincucina.altervista.org
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:28.0) Gecko/20100101 Firefox/28.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-gb,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://zenzeroincucina.altervista.org/gnutella/
Cookie: __cfduid=d1ef25815caa898a777114c04c4d37bfc1398261681664; av_device_cookie=computer; av_mobile_cookie=desktop; PHPSESSID=b27e99a06qrkkd2lenppt9p1i6; __utma=178781179.1711693902.1398262580.1398262580.1398262580.1; __utmc=178781179; __utmz=178781179.1398262580.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 201
author=Test&email=test%40stack.com&url=stackoverflow.com&comment=Test&captcha_code=dw3P&submit=Submit+Comment&comment_post_ID=1757&comment_post_ID=1757&comment_parent=0&akismet_comment_nonce=f8393add8f
This doesn't massively help however as you need to include the captcha.
What you want to use is the WordPress API for posting comments. I played around with this but I don't have your site ID.

Answer 2

Try this out:
-(void)invia{
[self.connessione cancel];
NSString *param = [NSString stringWithFormat:#"url=%#&author=%#&email=%#&content=%#",campoSito.text,campoNome.text,campoEmail.text,campoCommento.text];
NSURL *indirizzo = [NSURL URLWithString:[NSString stringWithFormat:#"http://*********ina.altervista.org/********/feed?%#",param]];
//initialize a request from url
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[indirizzo standardizedURL]];
[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[request setHTTPShouldHandleCookies:NO];
[request setHTTPMethod:#"POST"];
NSString *dati_postati=[NSString stringWithFormat:#"%#",parametri];
[request setValue:#"application/x-www-form-urlencoded; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:[dati_postati dataUsingEncoding:NSUTF8StringEncoding]];
//initialize a connection from request
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
self.connessione = connection;
//start the connection
[connection start];
[self dismissViewControllerAnimated:YES completion:nil];
campoCommento.text=nil;
campoEmail.text=nil;
campoSito.text=nil;
campoNome.text=nil;
}