I'm trying to send a post with several parameters and include an image in base64.
The image coding does it well, I checked the base64 image in a online base64 to image converter and looks like the image is encoded successfully. I can do the post process without any problem, but when I download it, the log shows this error:
Error: ImageIO: JPEG Corrupt JPEG data: 120 extraneous bytes before
marker 0xf1
Error: ImageIO: JPEG Unsupported marker type 0xf1
I do this in a method
jpgData = UIImageJPEGRepresentation(image, 0.1f);
imageString = [jpgData base64EncodedStringWithOptions:0];
And this is the method that sends the post, which is where I think the error is.
- (void)putComment{
dispatch_queue_t backgroundQueue = dispatch_queue_create("com.mycompany.myqueue", 0);
__block int responseCode = 0;
dispatch_async(backgroundQueue, ^{
NSString *requestParams = [NSString stringWithFormat:
#"idAdvertiser=%#&idUserDevice=%#&image=%#&text=%#&userName=%#&groups=%#",
ADVERTISER_ID, idUserDevice, imageString, texto, userName, groups];
[requestParams stringByReplacingOccurrencesOfString:#"+" withString:#"%2B"];
NSData *postData = [requestParams dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
// NSData *postData = [requestParams dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLenght = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [NSMutableURLRequest new];
[request setURL:[NSURL URLWithString: URL_COMMENT]];
[request setHTTPMethod:#"POST"];
[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[request setHTTPShouldHandleCookies:NO];
[request setValue:postLenght forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded charset=utf-8" forHTTPHeaderField:#"Current-Type"];
[request setHTTPBody:postData];
[request setTimeoutInterval:40];
NSError *error = nil;
NSHTTPURLResponse *response;
NSData *responseData = [NSURLConnection sendSynchronousRequest: request
returningResponse: &response
error: &error];
});
}
The server side works perfectly (tested in an Android app), so the problem is not server related.
You encode your url so no need for this line:
[requestParams stringByReplacingOccurrencesOfString:#"+" withString:#"%2B"];
Remove it and try again.
Also
[request setURL:[NSURL URLWithString: URL_COMMENT]];
can be turned to:
[request setURL:[NSURL URLWithString: [URL_COMMENT stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]];
Related
I have to pass form data in body part. here is postman screen short for better understanding.
body part
content type
here is my code what I had try.
NSString *Accesstoken = [NSString stringWithFormat:#"Bearer %#",tokenInfo.access_token];
// parameter is String object : "user_id=18&deal_id=218"
//NSDictionary *tmp = [[NSDictionary alloc] initWithObjectsAndKeys:
#"user_id", #"18487",
#"deal_id", #"218",
nil];
// NSError *errorr;
// NSData *postdata = [NSJSONSerialization dataWithJSONObject:tmp options:0 error:&errorr];
[request setValue:Accesstoken forHTTPHeaderField:#"Authorization"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
// NSData *postData = [parameter dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[postData length]];
// [request setHTTPBody:postData];;
// [request setHTTPBody:[parameter dataUsingEncoding:NSUTF8StringEncoding]];
// [request setHTTPBody:[NSJSONSerialization dataWithJSONObject:#{#"user_id":#"18487",#"deal_id":#"218" } options:0 error:nil]];
for above code I am getting http status code : 404 its wrong. and when I try in postman I am getting 401 its perfect I want that. Please help Thanks.
Just export the request from POSTMAN in objective-C : https://www.getpostman.com/docs/postman/sending_api_requests/generate_code_snippets
I'm trying to send the content of my textfields firstname and lastname with my button sendpost to my php server. Once I run my app and fill my textfields with some random text and press send, I receive an e-mail on my server but there is no content.
(void) sendAction{
NSError *error = nil;
NSString *postparams = [NSString stringWithFormat:#"info=%#_%#",firstname.text,lastname.text];
NSData * postdata = [postparams dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString * postlength= [NSString stringWithFormat:#"%d",[postdata length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc]init];
[request setURL:[NSURL URLWithString:#"http://faketest.com/test/mail.php"]];
[request setHTTPMethod:#"POST"];
[request setValue:postlength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Current-Type"];
[request setHTTPBody:postdata];
NSData * rawdata = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&error];
NSString *rawdatastring =[[NSString alloc]initWithData:rawdata encoding:NSUTF8StringEncoding];
NSLog(#"%#",rawdatastring);
}
I believe it may be because you're using a "Current-Type" header, instead of the usual "Content-Type" header. Try the following and see if it solves the problem:
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
thanks in Advance..
In my app, i have to upload an image to the server, below is my code. code is working properly, as i get the response but problem is that, on server side image is just black.
sessionid=[[[NSUserDefaults standardUserDefaults] valueForKey:#"SessionID"]objectAtIndex:0];
NSLog(#" ID = %#",sessionid);
NSData *da = [NSData data];
da = UIImagePNGRepresentation(self.Profilepic);
NSString *imgStr = [da base64Encoding];
NSLog(#" %d", imgStr.length);
NSString *serverscriptpath=[NSString stringWithFormat:#"http://c4ntechnology.com/biker/web_services/ws_insert_register3.php?"];
NSString *post =[[NSString alloc] initWithFormat:#"profile_pic=%#&sessionid=%#",imgStr,sessionid];
NSLog(#"post string is :%#",post);
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:NO];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSLog(#"post length is :%#",postLength);
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
NSString *script_path=[NSString stringWithFormat:#"%#",serverscriptpath];
[request setURL:[NSURL URLWithString:script_path]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSLog(#"%#",script_path);
NSData *serverReply = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString* responseString = [[[NSString alloc] initWithData:serverReply encoding: NSUTF8StringEncoding] autorelease];
NSDictionary *dict = [responseString JSONValue];
NSLog(#"%#",dict);
[self ReceivedResponse:dict];
-(void)ReceivedResponse:(NSDictionary *)d
{
[AlertHandler hideAlert];
NSLog(#"%#",d);
}
please any one can help me to find out problem, that why on server image is black.?
i am using NSDatAdditions.h file for converting into base64.
when i am using
NSData *imageData = UIImageJPEGRepresentation(Profilepic, 1.0);
at server side, file is not supported occurring, so i used
NSData *da = [NSData data];
da = UIImagePNGRepresentation(self.Profilepic);
You should try using NSUTF8StringEncoding instead of NSASCIIStringEncoding (unless you're sure that the web-server uses ASCII encoding).
If this doesn't work, I'd try the followings:
Encode image as base 64, and afterwards decode it and check if the result is ok.
If 1 passes, check exactly what the server receives (should be the same base64 string as you've sent, otherwise there's probably an issue with different encodings)
As a side note, da = [NSData data]; is useless, since you overwrite it right after, use directly NSData *da = UIImagePNGRepresentation(self.Profilepic);
In my iphone project, I need to pass member Id and pwd to a web server. I have tried my code with Synchronous as well as asynchronous request but I always get error : connection failed: Bad URL (null). can any one please help me to find what's wrong with the code?
My code:
NSString *post =[NSString stringWithFormat:#"memberId=%#&pwd=%#",txtUName.text,txtPwd.text];
NSLog(#"%#",post);
NSURL *url = [NSURL
URLWithString:#"http://testweb.talkfusion.com/videocenter/xlogin.asp%#"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding
allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
//set up the request to the website
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSError *error;
NSURLResponse *response;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *data=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(#"%#",data);
NSLog(#"Connection failed! Error - %# %#",
[error localizedDescription],
[[error userInfo] objectForKey:NSURLErrorFailingURLStringErrorKey]);
The %# at the end in your url is wrong. POST-data are not part of the url.
I'm unable to get this to work:
NSString *post = [NSString stringWithFormat:#"userudid=%#", [udid stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSLog(#"%#",post);
NSData *postData = [NSData dataWithBytes:[post UTF8String] length:[post length]];
//[udid dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
NSLog(#"%#",postData);
//NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:#"http://www.myserver.com/myapp/readtags2.php"]];
[request setURL:url];
[request setHTTPMethod:#"POST"];
//[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSURLResponse *response;
NSError *error;
NSData *urlData = [NSURLConnection sendSynchronousRequest:request
returningResponse:&response error:&error];
NSString *content = [NSString stringWithUTF8String:[urlData bytes]];
NSLog(#"responseData: %#", content);
is the POST formed correctly? Because i can get it to work from a manual html form posting to the same php file, but i get nothing back when doing it from iOS
You might have an easier time doing HTTP POST's with ASIHTTPRequest.
Form-Posting with ASIHTTPRequest is explained in the section titled "Sending a form POST with ASIFormDataRequest" here: http://allseeing-i.com/ASIHTTPRequest/How-to-use
Otherwise, have a look at the NSURLResponse, check the response code and see if iOS thinks the POST was successful.
Other thing you can use to check is a tool like wireshark to compare the network traffic from your web-based form POST to the traffic from your iOS POST. It looks like you're doing it right, but the best way to be sure is something like wireshark.