SOAPClient.m

/*
 File: SOAPClient.m
 
 Abstract: Implementation file for a basic SOAP client.
 
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 */ 
 
#import "SOAPClient.h"
#include <netinet/in.h>
#include <arpa/inet.h>
 
 
@implementation SOAPClient
 
- (id)initWithServerName:(NSString *)name {
    // Find one of the named services, then extract the port number and address.
    // We need to do this because we need to use an NSURL to make the requests.
 
    NSNetService *service = [[[NSNetService alloc] initWithDomain:@"local." type:@"_http._tcp." name:name] autorelease];
    if (!service) {
        [self release];
        return nil;
    }
    [service scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:@"PrivateSOAPMode"];
    [service resolveWithTimeout:8.0];
    CFAbsoluteTime deadline = CFAbsoluteTimeGetCurrent() + 8.0;
    CFTimeInterval remaining;
    while ((remaining = (deadline - CFAbsoluteTimeGetCurrent())) > 0 && [[service addresses] count] == 0) {
        CFRunLoopRunInMode((CFStringRef)@"PrivateSOAPMode", remaining, true);
    }
    [service stop];
    NSArray *addresses = [service addresses];
    if (0 == [addresses count]) {
        [self release];
        return nil;
    }
 
    NSData *address = [addresses objectAtIndex:0];
    struct sockaddr_in *address_sin = (struct sockaddr_in *)[address bytes];
    struct sockaddr_in6 *address_sin6 = (struct sockaddr_in6 *)[address bytes];
    const char *formatted;
    char buffer[1024];
    in_port_t port = 0;
    if (AF_INET == address_sin->sin_family) {
        formatted = inet_ntop(AF_INET, &(address_sin->sin_addr), buffer, sizeof(buffer));
        port = ntohs(address_sin->sin_port);
        url = [[NSURL alloc] initWithString:[NSString stringWithFormat:@"http://%s:%d/", formatted, port]];
    } else if (AF_INET6 == address_sin6->sin6_family) {
        formatted = inet_ntop(AF_INET6, &(address_sin6->sin6_addr), buffer, sizeof(buffer));
        port = ntohs(address_sin6->sin6_port);
        url = [[NSURL alloc] initWithString:[NSString stringWithFormat:@"http://[%s]:%d/", (0 ? formatted : "::1"), port]];
    }
    // Note that using an IPv6 address in the URL seems to not work, unless
    // the address is the trivial loopback address (that is, localhost). Even
    // using the address of the local machine seems not to work -- no data
    // will get to the server, but no exception gets raised.
 
    if (!url) {
        [self release];
        return nil;
    }
    return self;
}
 
- (void)dealloc {
    [url release];
    [super dealloc];
}
 
- (NSXMLDocument *)sendMessage:(NSXMLDocument *)xml waitForReply:(BOOL)b {
    NSData *data = [xml XMLData];
 
    NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] initWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:60.0] autorelease];
    [request setHTTPMethod:@"POST"];
    [request setHTTPBody:data];
    [request setValue:[NSString stringWithFormat:@"%d", [data length]] forHTTPHeaderField:@"Content-Length"];
    MyURLConnection *conn = [[[MyURLConnection alloc] initWithRequest:request delegate:self] autorelease];
 
    xml = nil;
    if (b) {
        while (![conn isFinished]) {
            [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]];
        }
        NSError *error = nil;
        xml = [[[NSXMLDocument alloc] initWithData:[conn data] options:NSXMLNodeOptionsNone error:&error] autorelease];
    }
 
    return xml;
}
 
- (void)connection:(MyURLConnection *)urlconn didReceiveResponse:(NSURLResponse *)response {
NSLog(@"getting response");
    [urlconn setResponse:response];
}
 
- (void)connection:(MyURLConnection *)urlconn didReceiveData:(NSData *)data {
    [urlconn appendData:data];
}
 
- (void)connectionDidFinishLoading:(MyURLConnection *)urlconn {
    [urlconn setFinished:YES];
}
 
@end