Objective-C HTTP 통신

bsHttpQueue.m

#import "bsHttpQueue.h"
#import "bsMacro.h"
#import "bsStr.h"

@interface bsHttpQueue(){
    NSString *_url;
    NSDictionary *_param;
    NSString *_method;
    NSUInteger _timeout;
}
@end

@implementation bsHttpQueue
+(bsHttpQueue*)GWithUrl:(NSString*)url method:(NSString*)method param:(NSDictionary*)param timeout:(NSUInteger)timeout end:(bsCallback*)end{
    bsHttpQueue *queue = (bsHttpQueue*)[bsQueue GWithClassName:NSStringFromClass([self class]) end:end];
    [queue __setWithUrl:url method:method param:param timeout:timeout];
    return queue;
    
}
-(void)__setWithUrl:(NSString*)url method:(NSString*)method param:(NSDictionary*)param timeout:(NSUInteger)timeout {
    _url = url;
    _param = param;
    _method = [[self class] __method:method];
    _timeout = timeout;
}
-(void)startWithData:(id*)data error:(bsError **)error{
    *data = [bsHttpQueue sendWithUrl:_url method:_method param:_param error:error timeout:_timeout];
}
+(NSMutableDictionary*)__headerFromParam:(NSDictionary*)param{ //key의 첫글자가 @이면 header로 본다.
    NSMutableDictionary *dic = [[NSMutableDictionary alloc]init];
    if( param == nil || [param count] == 0 ) return dic;
    [param enumerateKeysAndObjectsUsingBlock:^(NSString* key, id obj, BOOL *stop) {
        if( key.length > 1 && [[key substringToIndex:1] isEqualToString:@"@"] ) {
            key = [key substringFromIndex:1];
            if( key.length == 0 ) return;
            if( [obj isKindOfClass:[bsHttpFile class]] ) return; //@가 있더라도 파일이면 header가 될 수 없음!
            if( [obj isKindOfClass:[NSDictionary class]] || [obj isKindOfClass:[NSArray class]] ) obj = [[bsStr sharedInstance] jsonDecode:obj];
            else if( ![obj isKindOfClass:[NSString class]] ) obj = [[bsStr sharedInstance] str:obj];
            [dic setObject:obj forKey:key];
        }
    }];
    return dic;
}
+(NSMutableDictionary*)__dataFromParam:(NSDictionary*)param{ //key의 첫글자가 @가 아니면 data로 본다.
    NSMutableDictionary *dic = [[NSMutableDictionary alloc]init];
    if( param == nil || [param count] == 0 ) return dic;
    [param enumerateKeysAndObjectsUsingBlock:^(NSString* key, id obj, BOOL *stop) {
        if( key.length > 0 && ![[key substringToIndex:1] isEqualToString:@"@"] ) {
            if( [obj isKindOfClass:[bsHttpFile class]] ) return;
            else if( [obj isKindOfClass:[NSDictionary class]] || [obj isKindOfClass:[NSArray class]] ) obj = [[bsStr sharedInstance] jsonDecode:obj];
            else if( ![obj isKindOfClass:[NSString class]] ) obj = [[bsStr sharedInstance] str:obj];
            [dic setObject:obj forKey:key];
        }
    }];
    return dic;
}
+(NSMutableDictionary*)__fileFromParam:(NSDictionary*)param{
    NSMutableDictionary *dic = [[NSMutableDictionary alloc]init];
    if( param == nil || [param count] == 0 ) return dic;
    [param enumerateKeysAndObjectsUsingBlock:^(NSString* key, id obj, BOOL *stop) {
        if( [[key substringToIndex:1] isEqualToString:@"@"] ) return; //key에 @가 첫글자이면 무시함!
        if( key.length == 0 ) return;
        if( [obj isKindOfClass:[bsHttpFile class]] && [(bsHttpFile*)obj count] > 0 ){
            [dic setObject:obj forKey:key];
        }
    }];
    return dic;
}
+(NSString*)__queryStringFromData:(NSDictionary*)data{
    if( data == nil || [data count] == 0 ) return @"";
    NSMutableString *str = [[NSMutableString alloc] init];
    __block unsigned long i, j;
    i = 0;
    j = [data count];
    [data enumerateKeysAndObjectsUsingBlock:^(NSString* key, NSString* value, BOOL *stop) {
        [str appendString:[[bsStr sharedInstance] urlEncode:key]];
        [str appendString:@"="];
        [str appendString:[[bsStr sharedInstance] urlEncode:value]];
        if( i < j - 1 ) [str appendString:@"&"];
        i++;
    }];
    return [NSString stringWithString:str];
}
+(NSString*)__method:(NSString*)method{
    method = [method uppercaseString];
    if( [method isEqualToString:HTTP_METHOD_GET] || [method isEqualToString:HTTP_METHOD_POST] || [method isEqualToString:HTTP_METHOD_PUT] || [method isEqualToString:HTTP_METHOD_DELETE] ){
        return method;
    }
    bsException(@"http method는 GET, POST, PUT, DELETE중 하나이어야만 합니다.");
    return nil;
}
+(NSData*)sendWithUrl:(NSString*)url method:(NSString*)method param:(NSDictionary*)param error:(bsError**)error timeout:(NSUInteger)timeout{
    if( timeout < 5 ) timeout = 5;
    else if( timeout > 60 ) timeout = 60;
    method = [self __method:method];
    @try {
        NSDictionary *header = [self __headerFromParam:param];
        NSDictionary *data = [self __dataFromParam:param];
        NSDictionary *file = [self __fileFromParam:param];
        NSString *book = nil;
        *error = nil;
        if ( [method isEqualToString:HTTP_METHOD_GET] ) {
            NSMutableString *str = [[NSMutableString alloc] init];
            if( [url rangeOfString:@"#"].length > 0 ) {
                NSArray *urlMark = [[bsStr sharedInstance] split:url seperator:@"#" trim:YES];
                url = urlMark[0];
                book = urlMark[1];
            }
            [str appendString:url];
            if( [url rangeOfString:@"?"].length > 0 ) [str appendString:@"&"];
            else [str appendString:@"?"];
            [str appendString:[self __queryStringFromData:data]];
            if( book != nil ) {
                [str appendString:@"#"];
                [str appendString:book];
            }
            url = [NSString stringWithString:str];
            data = nil;
        }
        if ( [method isEqualToString:HTTP_METHOD_GET] || [method isEqualToString:HTTP_METHOD_DELETE] ){ //(?)GET, DELETE 방식은 파일업로드 지원 안함
            file = nil; //GET은 File을 보낼 수 없음
        }
        
        NSHTTPURLResponse *response = nil;
        NSError *err = nil;
        NSData *returnData;
        NSMutableData *body = [NSMutableData data];
        NSMutableURLRequest *request = [NSMutableURLRequest
                                        requestWithURL:[NSURL URLWithString:url]
                                        cachePolicy:NSURLRequestReloadIgnoringCacheData
                                        timeoutInterval:timeout];
        [request setHTTPMethod:method];
        [request setValue:@"Keep-Alive" forHTTPHeaderField:@"Connection"];
        [request setValue:@"gzip" forHTTPHeaderField:@"Accept-Encoding"]; //gzip 받아줌
        if( header && [header count] > 0 ){ //header셋팅
            [header enumerateKeysAndObjectsUsingBlock:^(NSString* key, NSString* value, BOOL *stop) {
                [request setValue:value forHTTPHeaderField:key];
            }];
        }
        if( file && [file count] > 0 ) { //file이 있다면 파일처리하자.
            NSString *BOUNDARY = @"-----------------bs-----";
            [request setValue:[NSString stringWithFormat:@"multipart/form-data, boundary=%@", BOUNDARY] forHTTPHeaderField:@"Content-Type"];
            NSData *crlf =[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding];
            NSData *boundary = [[NSString stringWithFormat:@"--%@", BOUNDARY] dataUsingEncoding:NSUTF8StringEncoding];
            NSData *disp0 = [@"Content-Disposition: form-data; name=\"" dataUsingEncoding:NSUTF8StringEncoding];
            NSData *disp1 = [@"\"; filename=\"" dataUsingEncoding:NSUTF8StringEncoding];
            NSData *disp2 = [@"\"" dataUsingEncoding:NSUTF8StringEncoding];
            NSData *octet = [@"Content-Type: application/octet-stream" dataUsingEncoding:NSUTF8StringEncoding];
            if( data != nil ) {
                [data enumerateKeysAndObjectsUsingBlock:^(NSString* key, id obj, BOOL *stop) {
                    [body appendData:boundary];
                    [body appendData:crlf];
                    [body appendData:disp0];
                    [body appendData:[key dataUsingEncoding:NSUTF8StringEncoding]];
                    [body appendData:disp2];
                    [body appendData:crlf];
                    [body appendData:crlf];
                    if( [obj isKindOfClass:[NSString class]] ) {
                        [body appendData:[obj dataUsingEncoding:NSUTF8StringEncoding]];
                    } else {
                        [body appendData:[[[bsStr sharedInstance] str:obj] dataUsingEncoding:NSUTF8StringEncoding]];
                    }
                    [body appendData:crlf];
                }];
            }
            [file enumerateKeysAndObjectsUsingBlock:^(NSString *key, bsHttpFile *f, BOOL *stop) {
                [f loop:^(NSString *name, NSData *data) {
                    [body appendData:boundary];
                    [body appendData:crlf];
                    [body appendData:disp0];
                    [body appendData:[key dataUsingEncoding:NSUTF8StringEncoding]];
                    [body appendData:disp1];
                    [body appendData:[name dataUsingEncoding:NSUTF8StringEncoding]];
                    [body appendData:disp2];
                    [body appendData:crlf];
                    [body appendData:octet];
                    [body appendData:crlf];
                    [body appendData:crlf];
                    [body appendData:data];
                    [body appendData:crlf];
                }];
                [bsHttpFile PUT:f]; //pool로 돌려줌
            }];
            [body appendData:boundary];
            [body appendData:[@"--" dataUsingEncoding:NSUTF8StringEncoding]];
            [body appendData:crlf];
            [body appendData:crlf];
        }else if( data && [data count] > 0 ){
            [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
            [body appendData:[[self __queryStringFromData:data] dataUsingEncoding:NSUTF8StringEncoding]];
        }
        [request setValue:[NSString stringWithFormat:@"%lu", (unsigned long)[body length]] forHTTPHeaderField:@"Content-Length"];
        [request setHTTPBody:body];
        returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
        if ( err == nil ) {
            return returnData;
        } else {
            *error = [bsError POPWithMsg:[NSString stringWithFormat:@"%@", err] data:err.userInfo func:__FUNCTION__ line:__LINE__];
            return nil;
        }
    }
    @catch (NSException *e) {
        *error = [bsError POPWithMsg:[NSString stringWithFormat:@"[%@]%@", [e name], [e reason]] data:[e userInfo] func:__FUNCTION__ line:__LINE__];
    }
}
@end