Hello I am trying to parse Shoutcast radio's metadata in iOS.
After trying many submitted solutions, I end up with a piece of code that is still giving me error
Response String: ICY 404 Resource Not Found
icy-notice1:SHOUTcast Distributed Network Audio Server/Linux v1.9.8
icy-notice2:The resource requested was not found
the code im trying to parse metadata
NSURL *url = [NSURL URLWithString:#"http://relay.181.fm:8052/7.html"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:15.0];
[request addValue:#"1" forHTTPHeaderField:#"icy-metadata"];
[request addValue:#"Winamp 5/3" forHTTPHeaderField:#"User-Agent"];
[request addValue:#"audio/mpeg" forHTTPHeaderField:#"Content-Type"];
[request setHTTPMethod:#"GET"];
NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString* responseString = [[NSString alloc] initWithData:data encoding: NSUTF8StringEncoding];
NSLog(#"Response String: %#", responseString);
any ideas about problem, thanks for helping
Not all SHOUTcast servers allow access to 7.html. There are two other ways to get that data.
The XML data for SHOUTcast is generally available, but requires the server's password. You can request it using /admin.cgi?mode=viewxml&page=4.
You can also read the metadata right out of the stream. This is more cumbersome, but entirely possible, and not too difficult. See this answer for details: https://stackoverflow.com/a/4914538/362536
I found a solution for those who can't/doesn't want to read metadata from stream.
Its the easiest solution I have seen.
http://www.fvalente.org/blog/2012/03/15/shoutcast-metadata-the-easy-way/
Brad says in the post above
Not all SHOUTcast servers allow access to 7.html.
so it is better to check if the server you want to get metadata has /7.html page
the current song is also displayed on the page /played.html but it works in a web browser along with /7.html. But when i tried in fiddler2 on a windows machine i got the ICY 404 resource not found error
Related
i have sign up form in which i have the fields like first name,last name,gender,email,password,user image,age. i want to make save this user information on the server through php webservice call.how can i pass these parameters to service url? will i use the http request using post method to save the user info to server and when that user wants to log in iOS app , i may match the credencial for that user. in shore, i need a log in and sign up screen for my iOS app, please suggest me any tutorial
Thanks in advance to all of you
First you need nto create php script and then transfer data through NSURL.
NSURL * url=[NSURL URLWithString:[NSString stringWithFormat:#"http://192.168.0.6/savedevicedata.php?Udid=%#&Flag=%d&DateTime=%#",uniqueIdentifier,Flag,FinalDate]];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSLog(#"%#",request);
[request setHTTPMethod:#"POST"];
//[request setHTTPBody:[NSString stringWithFormat:#"%#",rawStr]];
NSURLResponse *response;
NSError *err;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSLog(#"responseData: %#", responseData);
Try this Code just replaces the your field.
When do I actually get my response code 200 for a valid request for an image? Is it after all of the data has been downloaded to my browser or which ever device is requesting the image?
I am using the library http://allseeing-i.com/ASIHTTPRequest/ to download images in my iPad app and using the download directly to a file option and then deleting the file if it was a 404 error or any other status code than 200.
ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
[request setDownloadDestinationPath:#"/Users/ben/Desktop/my_file.jpg"];
Problem is partial responses seem to be getting saved during slow connections so I end up with blank or corrupt images.
I decided instead to save the data stream to disk only after I received a status code of 200:
NSURL *url = [NSURL URLWithString: [[NSString stringWithFormat:kProductImagesURL, fileName] stringByAppendingString:tStamp]];
ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
[request setTimeOutSeconds:10];
[request startSynchronous];
int statusCode = [request responseStatusCode];
if (statusCode==200) {
NSData *responseData = [request responseData];
[responseData writeToFile:[savePath stringByReplacingOccurrencesOfString:#"%20" withString:#" "] atomically:YES];
}
I just want to make sure that the response code only comes back after the request has been completed and all of the data has been downloaded. I am 99% sure that is the case but can't afford another app release with an image bug like this in it.
There are two reasons you should probably consider switching to an asynchronous request. The first is, it frees up your main thread to interact with the user (even a modal spinner would be nice--otherwise it looks like your app has frozen).
Second, it gives you callbacks that only happen once the whole request is finished. I can't really explain only having gotten partial data with the code you showed, but I've never once had that problem using ASI's asynchronous methods.
I am a backend Rails developer of an API that services several iPhone clients. I'm not an iPhone dev.
I have a need to accept binary data (several image files in this case) from the client via a POST request to the API.
To get the file content (file metadata other than image type is not relevant here), what tools might be used by the iPhone developer? I've found ObjectiveResource (used by iPhone on Rails) and ASIHTTPRequest. In the pages I found for those, there's no indication of what form the uploaded file will have when the controller action is executed. Will it be a Ruby File object or Tempfile object? I don't control the iPhone code development, there are some cross-cultural communication difficulties there, and they haven't used those suggestions so far. If I can submit better information to them, I might be getting better data back.
The backend app is currently running Rails 2.3.10, and will soon (in the next few weeks) likely be converted into Rails 3.
Thanks,
Craig
ObjectiveResource does not natively support file uploads. Try instead using ASIHTTPRequest with this snippet:
NSURL *url = [NSURL URLWithString:#"http://localhost:3000/file"];
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
[request setPostValue:#"Sample" forKey:#"name"];
[request setFile:... forKey:#"file"];
[request startSynchronous];
For more details, see the example page here (sending data).
The post will be encoded as a standard multipart form post (just like if it came from an HTML form). If you are using paperclip to store your uploads, the magic will just happen!
Use JSON over HTTP
NSMutableURLRequest *request =
[[NSMutableURLRequest alloc] initWithURL: [NSURL URLWithString:urlStr]];
[request setHTTPMethod: #"POST"];
[request setValue:#"application/json; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
NSString* requestDataLengthString = [[NSString alloc] initWithFormat:#"%d", [jsonMessageStr length]];
[request setValue:requestDataLengthString forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setHTTPBody:jsonData];
NSURLConnection *theConnection =
[[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES];
My problem is the following...
I read about sending http requests and receiving their responses on iPhone SDK 3.2 using NSURLRequest and NSHTTPURLResponse (All my requests are "get" and there's no "post") but I don't know how to do that exactly cause some of my responses are just strings (plain text) and some others are binary files (gzip and mp3)
Thank you in advance for the help
To perform a Http request, I use ASIHttpRequest:
NSURL *url = [NSURL URLWithString:my_url];
ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
[request setRequestMethod:#"GET"];
[request startSynchronous];
That works perfectly. Still need to figure out if it's fine with mp3 / zip files.
Luc
Despite looking at similar posts on this site and google, I just can't wrap my head around how to post to a php page from the iPhone. Here is what I want to do:
I have a php script, say at www.mypage.com/myscript.php that I could post to normally by doing www.mypage.com/myscript.php?mynumber=99&myname=codezy
This in turn will add a log message in database for example. I do not want any data back, it is essentially a one way transaction. NSMutableURLRequest seems to be what I am looking for but I just cant get a handle on how to make this work with a couple parameters.
If you're sending a single URL request without needing to send multiple variations, NSURLRequest will do. Even though you are using multiple parameters, they are all part of the same URL, so you just treat them that way. Build the URL as a string first and then use the string to initialize a NSURL object.
You are prompting a log message on the server, but you will want to have response data in case something goes wrong. You can just ignore the response data unless there's an error. The request is sent using a NSURLConnection object.
NSURL *urlToSend = [[NSURL alloc] initWithString: #"www.mypage.com/myscript.php?mynumber=99&myname=codezy"];
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:urlToSend
cachePolicy:NSURLRequestReturnCacheDataElseLoad
cachetimeoutInterval:30];
NSData *urlData;
NSURLResponse *response;
NSError *error;
urlData = [NSURLConnection sendSynchronousRequest:urlRequest
returningResponse:&response
error:&error];