I'm downloading a webpage using NSMutableURLRequest but having problem putting that very webpage into a NSString.
NSString *username = #"my_username";
NSString *password = #"my_password";
NSURL* url = [NSURL URLWithString:[NSString stringWithFormat:#"https://www.mypage.com/login.php?username=%#&password=%#", username, password]];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnPage = [NSString stringWithFormat:#"%.*s", [returnData length], [returnData bytes]];
This works fine except for special chars like åäö etc. Is there any better way?
Yes, use the following:
NSString *returnPage = [[[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding] autorelease];
That uses UTF8 instead of ASCII.
Related
I need to Parse below string to POST method in iOS
"jsonData":{"empId":"cxvd","password":"sfsd"}
But I m getting the error as
Res: Tomcat Error
HTTP Status 400 - Required String parameter 'jsonData' is not present
//------ Method I have used to Parse is ---------- //
+(void) requestToServerForLogin:(NSString*)userName andPassward: (NSString*)password onCompletion:(RequestCompletionHandler) handler
{
NSString *url = [Ip stringByAppendingString:#"login"];
NSString *jsonString = [NSString stringWithFormat:#"\"jsonData\":{\"empId\":\"%#\",\"password\":\"%#\"}",
userName,
password ];
NSURL *nsurl = [NSURL URLWithString:url];
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:nsurl];
[urlRequest setTimeoutInterval:60.0f];
[urlRequest setHTTPMethod:#"POST"];
[urlRequest setValue:#"application/json"
forHTTPHeaderField:#"Content-type"];
NSString *body = jsonString1;
[urlRequest setHTTPBody:[body dataUsingEncoding:NSUTF8StringEncoding]];
NSLog(#"urlRequest :%#",[body dataUsingEncoding:NSUTF8StringEncoding]);
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[NSURLConnection sendAsynchronousRequest:urlRequest
queue:queue
completionHandler:^(NSURLResponse *response,
NSData *data1, NSError *error)
{
NSString *res = [[NSString alloc] initWithData:data1 encoding:NSUTF8StringEncoding];
if(handler) handler(res,error);
}];
}
Thanks in advance
There is way to much code. The substringToIndex and substringFromIndex are wrong, should not be in the code.
Use the literal syntax for the dictionaries:
NSDictionary *jsonDict = #{#"jsonData":#{#"password":password, #"empId":userName}};
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:jsonDict options:0 error:&error];
NSURL *url = [[NSURL alloc] initWithString:#"http://nyxmyx.com/Kinkey/KinkeyPHP/lastidretrieve.php"];
NSData *data = [url resourceDataUsingCache:YES];
NSString *string = [[NSString alloc] initWithData:data encoding:NSMacOSRomanStringEncoding];
NSLog(#"result FOR ID %#",string);
I am using this code in didenterBackgroundMethod.In that i just want to call lastidretrieve.php which returns a response as a string.I am getting error as "receiver type nsurl for instance message does not declare a method with selector resourceDataUsingCache".i have no idead about this error.
Use this code instead of your code it gives the string output ,then you have to format that string to get disired output.
NSString *post =#"";
NSURL *url=[NSURL URLWithString:#"http://nyxmyx.com/Kinkey/KinkeyPHP/lastidretrieve.php"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:postData];
NSError *error = [[NSError alloc] init];
NSHTTPURLResponse *response = nil;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
if ([response statusCode] >=200 && [response statusCode] <300)
{
//NSData *data = [responseData resourceDataUsingCache:YES];
NSString *string = [[NSString alloc] initWithData:urlData encoding:NSMacOSRomanStringEncoding];
NSLog(#"responseData-%#",string);
}
Output will be like this.
responseData-1995<br />prabu<br />1231231233<br />antab<br />8080808080<br />1360738531881.jpg<br />No
UPDATE
In case you want to add argument in your URL than change post string to this.
NSString *post =[[NSString alloc] initWithFormat:#"yourArg=%#",yourArg];
It would have been sufficient to read the documentation of NSURL. This method is deprecated. You should use [[NSData alloc] initWithContentsOfURL:url] instead.
Im' trying to submit to Reddit via my iOS app. I can login fine and am sent back a modhash and a cookie which I save via NSUserDefaults.
The issue is when I post the data I keep getting "USER_REQUIRED" as the response, even though I have included the modhash in the post and set my session cookie. I have even included the following in my app delegate:
[[NSHTTPCookieStorage sharedHTTPCookieStorage]
setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyAlways];
But it still doesn't work. Here is my code:
-(void) post {
NSString *modhash2 = [[NSUserDefaults standardUserDefaults]
objectForKey:#"modhash"];
NSString *urlString = [NSString
stringWithFormat:#"https://ssl.reddit.com/api/submit"];
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
NSString *contentType = [NSString stringWithFormat:#"application/x-www-form-urlencoded;"];
[request addValue:contentType forHTTPHeaderField: #"Content-Type"];
[request addValue:redditCookie forHTTPHeaderField:#"Cookie"];
[request setHTTPMethod:#"POST"];
NSString *httpBody = [NSString stringWithFormat
:#" ?uh=%#&kind=link&url=%#&sr=%#&title=%#&r=%#&api_type=json",
modhash2,
#"www.google.com",
#"test",
#"Google.com",
#"test"];
[request setHTTPBody:[httpBody dataUsingEncoding:NSASCIIStringEncoding]];
NSURLResponse* response;
NSError* error = nil;
NSData* result = [NSURLConnection
sendSynchronousRequest:request
returningResponse:&response
error:&error];
NSDictionary *json = [NSJSONSerialization
JSONObjectWithData:result
options:NSJSONReadingMutableContainers
error:nil];
NSDictionary *responseJSON = [json valueForKey:#"json"];
NSLog(#"RETURN: %#",responseJSON);
}
Any ideas?
I want to get HTML from website. I wrote below code but this returns (null).
NSString *strURL = #"http://www.googole.com";
- (NSString *)getHtml
{
NSURL *url = [NSURL URLWithString: strURL];
NSURLRequest *req = [NSURLRequest requestWithURL:url];
NSURLResponse *response = nil;
NSError *error = nil;
NSData *data = [NSURLConnection sendSynchronousRequest : req
returningResponse : &response
error : &error];
NSString *strData = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
return strData;
}
I think you have mistyped the url.
It should be NSString *strURL = #"http://www.google.com";
NSString *username = #"username";
NSString *password = #"password";
NSURL *loginurl = [NSURL URLWithString:[NSString stringWithFormat:#"http://www.reddit.com/api/login/%#",username]];
NSMutableURLRequest *loginrequest = [NSMutableURLRequest requestWithURL:loginurl];
[loginrequest setHTTPMethod:#"POST"];
NSData *loginRequestBody = [[NSString stringWithFormat:#"api_type=json&user=%#&passwd=%#",username,password] dataUsingEncoding:NSUTF8StringEncoding];
[loginrequest setHTTPBody:loginRequestBody];
NSURLResponse *loginResponse = NULL;
NSError *loginRequestError = NULL;
NSData *loginResponseData = [NSURLConnection sendSynchronousRequest:loginrequest returningResponse:&loginResponse error:&loginRequestError];
NSString *loginResponseString = [[NSString alloc]initWithData:loginResponseData encoding:NSUTF8StringEncoding];
NSLog(#"%#",loginResponseString);
the NSLog prints this: (with some letters replaced)
{"json": {"errors": [], "data": {"modhash":
"j5hq16ukw2f17a9c153xxxxxxxxxa72ad989c96c904d49a97e", "cookie":
"13986184,2012-07-14T12:41:05,349f968b3089af75978xxxxxxxxxxxx761397ba0"}}}
How do i access the modhash and the cookie? I tried
[loginResponseData valueForKey:#"json"];
but it says that the class is not key value coding-compliant for the key json
loginResponseString is an NSString -- it doesn't know if it has JSON inside. You have to parse this JSON to an NSDictionary then you can use its methods to retrieve response data. Try my JSON parser: http://github.com/H2CO3/CarbonateJSON
Example using my CarbonateJSON library:
NSDictionary *parsedResponse = [loginResponseString parseJson];
NSString *modhash = [[[parsedResponse objectForKey:#"json"] objectForKey:#"data"] objectForKey:#"modhash"];
For anyone looking at this after me, you can check out H2CO3's solution, but I found that the easiest solution was using NSJSONSerialization to do it in a supported fashion.
NSError *error;
NSData *jsonData = [loginResponseString dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *loginResults = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];
NSString *modhash = [[[loginResults valueForKey:#"json"] valueForKey:#"data"]valueForKey:#"modhash"];
worked for me.