header dependency cleanup

Remove high dependencies on OpenDHT includes inside Ring internal
header files.
This reduces compile time by not recompiling the whole project
for any changes into opendht.

Change-Id: Iba852e0b889e67ee12b3a9747e6d04de23572c2e
Reviewed-by: Olivier Soldano <olivier.soldano@savoirfairelinux.com>

src/ringdht/ringaccount.h

@@ -32,6 +32,7 @@
 #include "noncopyable.h"
 #include "ip_utils.h"
 #include "ring_types.h" // enable_if_base_of
+#include "security/certstore.h"
 
 #include <opendht/dhtrunner.h>
 #include <opendht/default_types.h>

src/security/certstore.h

@@ -32,9 +32,9 @@
 #include <future>
 #include <mutex>
 
-namespace ring { namespace tls {
+namespace crypto = ::dht::crypto;
 
-namespace crypto = dht::crypto;
+namespace ring { namespace tls {
 
 enum class TrustStatus {
     UNTRUSTED = 0,

src/security/tls_session.cpp

@@ -19,8 +19,7 @@
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
  */
 
-#include <ip_utils.h>       // DO NOT CHANGE ORDER OF THIS INCLUDE
-#include <opendht/crypto.h> // OR MINGWIN FAILS TO BUILD
+#include <ip_utils.h>       // DO NOT CHANGE ORDER OF THIS INCLUDE OR MINGWIN FAILS TO BUILD
 
 #include "tls_session.h"
 

src/security/tlsvalidator.h

@@ -26,13 +26,16 @@
 
 #include "enumclass_utils.h"
 
-#include <opendht/crypto.h>
-
 #include <string>
 #include <vector>
 #include <memory>
 
-namespace ring {namespace tls {
+// OpenDHT
+namespace dht { namespace crypto {
+struct Certificate;
+}} // namespace dht::crypto
+
+namespace ring { namespace tls {
 
 #if !defined (S_IRWXG)
 #define S_IRWXG 00070

src/sip/pres_sub_client.cpp

@@ -28,6 +28,7 @@
 #include <pjsip/sip_endpoint.h>
 #include <string>
 #include <sstream>
+#include <thread>
 #include <pj/pool.h>
 #include <pjsip/sip_ua_layer.h>
 #include <pjsip-simple/evsub.h>

src/sip/sipaccount.cpp

@@ -62,6 +62,8 @@
 
 #include "im/instant_messaging.h"
 
+#include <opendht/crypto.h>
+
 #include <unistd.h>
 
 #include <algorithm>

src/sip/sipaccountbase.h

@@ -30,17 +30,21 @@
 #include "sip_utils.h"
 #include "ip_utils.h"
 #include "noncopyable.h"
-#include "security/certstore.h"
 #include "im/message_engine.h"
 
 #include <pjsip/sip_types.h>
-#include <opendht/value.h>
 
 #include <array>
 #include <vector>
 #include <map>
 #include <memory>
 
+#ifdef _WIN32
+typedef uint16_t in_port_t;
+#else
+#include <netinet/in.h> // For in_port_t support
+#endif
+
 struct pjsip_dialog;
 struct pjsip_inv_session;
 struct pjmedia_sdp_session;

src/sip/sipcall.cpp

@@ -51,6 +51,8 @@
 
 #include "errno.h"
 
+#include <opendht/crypto.h>
+
 namespace ring {
 
 using sip_utils::CONST_PJ_STR;

src/sip/sippresence.cpp

@@ -30,6 +30,8 @@
 #include "client/ring_signal.h"
 #include "sip_utils.h"
 
+#include <opendht/crypto.h>
+
 #include <thread>
 #include <sstream>
 

src/sip/siptransport.cpp

@@ -40,6 +40,8 @@
 #include <pjlib.h>
 #include <pjlib-util.h>
 
+#include <opendht/crypto.h>
+
 #include <stdexcept>
 #include <sstream>
 #include <algorithm>

src/sip/siptransport.h

@@ -31,8 +31,6 @@
 #include "noncopyable.h"
 #include "logger.h"
 
-#include <opendht/crypto.h>
-
 #include <pjsip.h>
 #include <pjnath/stun_config.h>
 
@@ -45,6 +43,11 @@
 #include <list>
 #include <memory>
 
+// OpenDHT
+namespace dht { namespace crypto {
+struct Certificate;
+}} // namespace dht::crypto
+
 namespace ring {
 
 struct SipTransportDescr