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#import <Foundation/Foundation.h>
#include "platform/socket.hpp"
#include "base/logging.hpp"
@interface SocketImpl : NSObject
@property(nonatomic) NSInputStream * inputStream;
@property(nonatomic) NSOutputStream * outputStream;
@property(nonatomic) uint32_t timeout;
- (BOOL)open:(NSString *)host port:(NSUInteger)port;
- (void)close;
- (BOOL)read:(uint8_t *)data count:(NSUInteger)count;
- (BOOL)write:(uint8_t const *)data count:(NSUInteger)count;
@end
@implementation SocketImpl
- (BOOL)open:(NSString *)host port:(NSUInteger)port
{
[self close];
NSDate * openStart = [NSDate date];
CFReadStreamRef readStream;
CFWriteStreamRef writeStream;
CFStreamCreatePairWithSocketToHost(NULL, (__bridge CFStringRef)(host), (UInt32)port, &readStream,
&writeStream);
NSDictionary * settings = @{(id)kCFStreamSSLValidatesCertificateChain : @NO,
(id)kCFStreamSSLLevel : (id)kCFStreamSocketSecurityLevelTLSv1,
};
CFReadStreamSetProperty(readStream, kCFStreamPropertySSLSettings, (CFTypeRef)settings);
CFWriteStreamSetProperty(writeStream, kCFStreamPropertySSLSettings, (CFTypeRef)settings);
self.inputStream = (__bridge_transfer NSInputStream *)readStream;
self.outputStream = (__bridge_transfer NSOutputStream *)writeStream;
[self.inputStream open];
[self.outputStream open];
while ([[NSDate date] timeIntervalSinceDate:openStart] < self.timeout)
{
NSStreamStatus const inputStreamStatus = self.inputStream.streamStatus;
NSStreamStatus const outputStreamStatus = self.outputStream.streamStatus;
if (inputStreamStatus == NSStreamStatusError || outputStreamStatus == NSStreamStatusError)
return NO;
if (inputStreamStatus == NSStreamStatusOpen && outputStreamStatus == NSStreamStatusOpen)
return YES;
}
return NO;
}
- (void)close
{
if (self.inputStream)
{
[self.inputStream close];
self.inputStream = nil;
}
if (self.outputStream)
{
[self.outputStream close];
self.outputStream = nil;
}
}
- (BOOL)read:(uint8_t *)data count:(NSUInteger)count
{
if (!self.inputStream || self.inputStream.streamStatus != NSStreamStatusOpen)
return NO;
NSDate * readStart = [NSDate date];
uint8_t * readPtr = data;
while (count != 0 && [[NSDate date] timeIntervalSinceDate:readStart] < self.timeout)
{
NSInteger const readCount = [self.inputStream read:readPtr maxLength:count];
if (readCount > 0)
{
LOG(LDEBUG, ("Stream has read ", readCount, " bytes."));
count -= readCount;
readPtr += readCount;
}
else if (readCount == 0)
{
LOG(LDEBUG, ("The end of the read buffer was reached."));
}
else
{
LOG(LERROR, ("An error has occurred on the read stream."));
#ifdef OMIN_PRODUCTION
LOG(LERROR, (self.inputStream.streamError));
#else
NSLog(@"%@", self.inputStream.streamError);
#endif
return NO;
}
}
return count == 0;
}
- (BOOL)write:(uint8_t const *)data count:(NSUInteger)count
{
if (!self.outputStream || self.outputStream.streamStatus != NSStreamStatusOpen)
return NO;
uint8_t const * writePtr = data;
NSDate * writeStart = [NSDate date];
while (count != 0 && [[NSDate date] timeIntervalSinceDate:writeStart] < self.timeout)
{
NSInteger const writeCount = [self.outputStream write:writePtr maxLength:count];
if (writeCount > 0)
{
LOG(LDEBUG, ("Stream has written ", writeCount, " bytes."));
count -= writeCount;
writePtr += writeCount;
}
else if (writeCount == 0)
{
LOG(LDEBUG, ("The end of the write stream has been reached."));
}
else
{
LOG(LERROR, ("An error has occurred on the write stream."));
#ifdef OMIN_PRODUCTION
LOG(LERROR, (self.outputStream.streamError));
#else
NSLog(@"%@", self.outputStream.streamError);
#endif
return NO;
}
}
return count == 0;
}
@end
namespace platform
{
class PlatformSocket final : public Socket
{
public:
PlatformSocket();
// Socket overrides
~PlatformSocket();
bool Open(string const & host, uint16_t port) override;
void Close() override;
bool Read(uint8_t * data, uint32_t count) override;
bool Write(uint8_t const * data, uint32_t count) override;
void SetTimeout(uint32_t milliseconds) override;
private:
SocketImpl * m_socketImpl = nullptr;
};
unique_ptr<Socket> CreateSocket()
{
return make_unique<PlatformSocket>();
}
PlatformSocket::PlatformSocket() { m_socketImpl = [[SocketImpl alloc] init]; }
PlatformSocket::~PlatformSocket()
{
Close();
m_socketImpl = nullptr;
}
bool PlatformSocket::Open(string const & host, uint16_t port)
{
return [m_socketImpl open:@(host.c_str()) port:port];
}
void PlatformSocket::Close() { [m_socketImpl close]; }
bool PlatformSocket::Read(uint8_t * data, uint32_t count)
{
return [m_socketImpl read:data count:count];
}
bool PlatformSocket::Write(uint8_t const * data, uint32_t count)
{
return [m_socketImpl write:data count:count];
}
void PlatformSocket::SetTimeout(uint32_t milliseconds) { m_socketImpl.timeout = milliseconds; }
} // namespace platform
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