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#import "BinaryResponseSerializer.h"
static NSError * AFErrorWithUnderlyingError(NSError *error, NSError *underlyingError) {
if (!error) {
return underlyingError;
}
if (!underlyingError || error.userInfo[NSUnderlyingErrorKey]) {
return error;
}
NSMutableDictionary *mutableUserInfo = [error.userInfo mutableCopy];
mutableUserInfo[NSUnderlyingErrorKey] = underlyingError;
return [[NSError alloc] initWithDomain:error.domain code:error.code userInfo:mutableUserInfo];
}
static BOOL AFErrorOrUnderlyingErrorHasCodeInDomain(NSError *error, NSInteger code, NSString *domain) {
if ([error.domain isEqualToString:domain] && error.code == code) {
return YES;
} else if (error.userInfo[NSUnderlyingErrorKey]) {
return AFErrorOrUnderlyingErrorHasCodeInDomain(error.userInfo[NSUnderlyingErrorKey], code, domain);
}
return NO;
}
@implementation BinaryResponseSerializer
+ (instancetype)serializer {
BinaryResponseSerializer *serializer = [[self alloc] init];
return serializer;
}
- (instancetype)init {
self = [super init];
if (!self) {
return nil;
}
self.acceptableContentTypes = nil;
return self;
}
- (NSString*)decodeResponseData:(NSData*)rawResponseData withEncoding:(CFStringEncoding)cfEncoding {
NSStringEncoding nsEncoding;
NSString* decoded = nil;
if (cfEncoding != kCFStringEncodingInvalidId) {
nsEncoding = CFStringConvertEncodingToNSStringEncoding(cfEncoding);
}
NSStringEncoding supportedEncodings[6] = {
NSUTF8StringEncoding, NSWindowsCP1252StringEncoding, NSISOLatin1StringEncoding,
NSISOLatin2StringEncoding, NSASCIIStringEncoding, NSUnicodeStringEncoding
};
for (int i = 0; i < sizeof(supportedEncodings) / sizeof(NSStringEncoding) && !decoded; ++i) {
if (cfEncoding == kCFStringEncodingInvalidId || nsEncoding == supportedEncodings[i]) {
decoded = [[NSString alloc] initWithData:rawResponseData encoding:supportedEncodings[i]];
}
}
return decoded;
}
- (CFStringEncoding) getEncoding:(NSURLResponse *)response {
CFStringEncoding encoding = kCFStringEncodingInvalidId;
if (response.textEncodingName) {
encoding = CFStringConvertIANACharSetNameToEncoding((CFStringRef)response.textEncodingName);
}
return encoding;
}
#pragma mark -
- (BOOL)validateResponse:(NSHTTPURLResponse *)response
data:(NSData *)data
error:(NSError * __autoreleasing *)error
{
if (response && [response isKindOfClass:[NSHTTPURLResponse class]]) {
if (self.acceptableStatusCodes && ![self.acceptableStatusCodes containsIndex:(NSUInteger)response.statusCode] && [response URL]) {
NSMutableDictionary *mutableUserInfo = [@{
NSLocalizedDescriptionKey: [NSString stringWithFormat:NSLocalizedStringFromTable(@"Request failed: %@ (%ld)", @"AFNetworking", nil), [NSHTTPURLResponse localizedStringForStatusCode:response.statusCode], (long)response.statusCode],
NSURLErrorFailingURLErrorKey: [response URL],
AFNetworkingOperationFailingURLResponseErrorKey: response,
} mutableCopy];
if (data) {
mutableUserInfo[AFNetworkingOperationFailingURLResponseDataErrorKey] = data;
// trying to decode error message in body
mutableUserInfo[AFNetworkingOperationFailingURLResponseBodyErrorKey] = [self decodeResponseData:data withEncoding:[self getEncoding:response]];
}
if (error) {
*error = [NSError errorWithDomain:AFURLResponseSerializationErrorDomain code:NSURLErrorBadServerResponse userInfo:mutableUserInfo];
}
return NO;
}
}
return YES;
}
#pragma mark - AFURLResponseSerialization
- (id)responseObjectForResponse:(NSURLResponse *)response
data:(NSData *)data
error:(NSError *__autoreleasing *)error
{
if (![self validateResponse:(NSHTTPURLResponse *)response data:data error:error]) {
if (!error || AFErrorOrUnderlyingErrorHasCodeInDomain(*error, NSURLErrorCannotDecodeContentData, AFURLResponseSerializationErrorDomain)) {
return nil;
}
}
return [data base64EncodedStringWithOptions:0];
}
@end
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