I have a web service (which uses CakePHP) that I am posting string data to successfully with a Mac OS X app I'm working on.
Initially, I was given some advice that I would need to create a Base 64 encoded string to pass over a PNG imageto CakePHP. So my plan was to simply generate a URL encoded string (see code sample below). To do that, I've incorporated a third-party class which handles the base64 encode and decode.
However, it seems like the CakePHP update() function is removing some characters from that base 64 encoded string:
Original string may contain something like:
5nd/9ne/+zuPelWPFYtGrRpde2tlK3eXwv/
But the one that is actually stored and eventually retrieved may be:
5nd/9ne/ zuPelWPFYtGrRpde2tlK3eXwv/
Weird, right? I'm working on very limited knowledge of how CakePHP works, so I'm hoping this may be a simple answer. It seems like I should be able to post that base 64 encoded string to CakePHP - and that it should update without interpreting/removing any characters from the code. Any advice?
Here is the code snippet of how I'm posting my values to the CakePHP web service:
- (void) updateApi {
NSLog(@"Updating user account settings");
NSString* request_url = @"/users/update";
NSLog(@"%@", [NSString stringWithFormat:@"%@%@", @"http://somesite.com", request_url]);
NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@", @"http://somesite.com", request_url]]];
NSMutableString* post_values = [NSMutableString stringWithFormat:@"data[id]=%@", [[NSUserDefaults standardUserDefaults] objectForKey:@"user_id"]];
[post_values appendFormat:@"&data[company]=%@", [company_field stringValue]];
[post_values appendFormat:@"&data[phone]=%@", [phone_field stringValue]];
[post_values appendFormat:@"&data[address1]=%@", [address1_field stringValue]];
[post_values appendFormat:@"&data[address2]=%@", [address2_field stringValue]];
[post_values appendFormat:@"&data[city]=%@", [city_field stringValue]];
[post_values appendFormat:@"&data[state]=%@", [state_field stringValue]];
[post_values appendFormat:@"&data[zip]=%@", [zip_field stringValue]];
[post_values appendFormat:@"&data[website]=%@", [website_field stringValue]];
// Iteration 09 - Store logo as PNG and prepare to upload to server
NSImage *logoImage = [logo_image image];
if (logoImage) {
// Image exists; we need to convert it to a BLOB for our back-end database posting
NSLog(@"Image exists in logo_image");
// Grab possible representations of this image
NSArray *representations = [logoImage representations];
// Create the PNG data
NSData *imageData = [NSBitmapImageRep representationOfImageRepsInArray:representations usingType:NSPNGFileType properties:nil];
// Base 64 encoding should happen here
NSString *base64encodedImageData = [imageData base64Encoding]; // Convert to base 64 string
NSLog(@"\n\nBase 64 image data encoded as \n\n%@\n\n", base64encodedImageData);
// Store data in parameter
[post_values appendFormat:@"&data[logo_png_data]=%@", base64encodedImageData];
}
NSString *encoded_post_values = [post_values stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(@"\n\nEncoded post values string is \n\n%@\n\n", encoded_post_values);
NSData *request_data = [NSData dataWithBytes:[encoded_post_values UTF8String] length:[encoded_post_values length]];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"content-type"];
[request setHTTPBody:request_data];
NSData* return_data = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
//NSLog(@"%@", [[NSString alloc] initWithData:return_data encoding:NSUTF8StringEncoding]);
NSString* result = [[CJSONDeserializer deserializer] deserialize:return_data error:nil];
//NSLog(@"%@", result);
}
