Adding upstream version 2:20.4+dfsg.upstream/2%20.4+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 245 insertions, 0 deletions

diff --git a/xbmc/network/ZeroconfBrowser.cpp b/xbmc/network/ZeroconfBrowser.cpp
new file mode 100644
index 0000000..2d1b8c6
--- /dev/null
+++ b/xbmc/network/ZeroconfBrowser.cpp
@@ -0,0 +1,245 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+#include "ZeroconfBrowser.h"
+
+#include "utils/log.h"
+
+#include <cassert>
+#include <mutex>
+#include <stdexcept>
+
+#if defined (HAS_AVAHI)
+#include "platform/linux/network/zeroconf/ZeroconfBrowserAvahi.h"
+#elif defined(TARGET_DARWIN)
+//on osx use the native implementation
+#include "platform/darwin/network/ZeroconfBrowserDarwin.h"
+#elif defined(TARGET_ANDROID)
+#include "platform/android/network/ZeroconfBrowserAndroid.h"
+#elif defined(HAS_MDNS)
+#include "mdns/ZeroconfBrowserMDNS.h"
+#endif
+
+#include "threads/CriticalSection.h"
+
+namespace
+{
+
+std::mutex singletonMutex;
+
+}
+
+#if !defined(HAS_ZEROCONF)
+//dummy implementation used if no zeroconf is present
+//should be optimized away
+class CZeroconfBrowserDummy : public CZeroconfBrowser
+{
+  virtual bool doAddServiceType(const std::string&){return false;}
+  virtual bool doRemoveServiceType(const std::string&){return false;}
+  virtual std::vector<ZeroconfService> doGetFoundServices(){return std::vector<ZeroconfService>();}
+  virtual bool doResolveService(ZeroconfService&, double){return false;}
+};
+#endif
+
+CZeroconfBrowser* CZeroconfBrowser::smp_instance = 0;
+
+CZeroconfBrowser::CZeroconfBrowser():mp_crit_sec(new CCriticalSection)
+{
+#ifdef HAS_FILESYSTEM_SMB
+  AddServiceType("_smb._tcp.");
+#endif
+  AddServiceType("_ftp._tcp.");
+  AddServiceType("_webdav._tcp.");
+#ifdef HAS_FILESYSTEM_NFS
+  AddServiceType("_nfs._tcp.");
+#endif// HAS_FILESYSTEM_NFS
+}
+
+CZeroconfBrowser::~CZeroconfBrowser()
+{
+  delete mp_crit_sec;
+}
+
+void CZeroconfBrowser::Start()
+{
+  std::unique_lock<CCriticalSection> lock(*mp_crit_sec);
+  if(m_started)
+    return;
+  m_started = true;
+  for (const auto& it : m_services)
+    doAddServiceType(it);
+}
+
+void CZeroconfBrowser::Stop()
+{
+  std::unique_lock<CCriticalSection> lock(*mp_crit_sec);
+  if(!m_started)
+    return;
+  for (const auto& it : m_services)
+    RemoveServiceType(it);
+  m_started = false;
+}
+
+bool CZeroconfBrowser::AddServiceType(const std::string& fcr_service_type /*const std::string& domain*/ )
+{
+  std::unique_lock<CCriticalSection> lock(*mp_crit_sec);
+  std::pair<tServices::iterator, bool> ret = m_services.insert(fcr_service_type);
+  if(!ret.second)
+  {
+    //service already in list
+    return false;
+  }
+  if(m_started)
+    return doAddServiceType(*ret.first);
+  //not yet started, so its just queued
+  return true;
+}
+
+bool CZeroconfBrowser::RemoveServiceType(const std::string& fcr_service_type)
+{
+  std::unique_lock<CCriticalSection> lock(*mp_crit_sec);
+  tServices::iterator ret = m_services.find(fcr_service_type);
+  if(ret == m_services.end())
+    return false;
+  if(m_started)
+    return doRemoveServiceType(fcr_service_type);
+  //not yet started, so its just queued
+  return true;
+}
+
+std::vector<CZeroconfBrowser::ZeroconfService> CZeroconfBrowser::GetFoundServices()
+{
+  std::unique_lock<CCriticalSection> lock(*mp_crit_sec);
+  if(m_started)
+    return doGetFoundServices();
+  else
+  {
+    CLog::Log(LOGDEBUG, "CZeroconfBrowser::GetFoundServices asked for services without browser running");
+    return std::vector<ZeroconfService>();
+  }
+}
+
+bool CZeroconfBrowser::ResolveService(ZeroconfService& fr_service, double f_timeout)
+{
+  std::unique_lock<CCriticalSection> lock(*mp_crit_sec);
+  if(m_started)
+  {
+    return doResolveService(fr_service, f_timeout);
+  }
+  CLog::Log(LOGDEBUG, "CZeroconfBrowser::GetFoundServices asked for services without browser running");
+  return false;
+}
+
+CZeroconfBrowser*  CZeroconfBrowser::GetInstance()
+{
+  std::lock_guard<std::mutex> lock(singletonMutex);
+
+  if(!smp_instance)
+  {
+#if !defined(HAS_ZEROCONF)
+    smp_instance = new CZeroconfBrowserDummy;
+#else
+#if defined(TARGET_DARWIN)
+    smp_instance = new CZeroconfBrowserDarwin;
+#elif defined(HAS_AVAHI)
+    smp_instance = new CZeroconfBrowserAvahi;
+#elif defined(TARGET_ANDROID)
+    // WIP
+    smp_instance = new CZeroconfBrowserAndroid;
+#elif defined(HAS_MDNS)
+    smp_instance = new CZeroconfBrowserMDNS;
+#endif
+#endif
+  }
+  assert(smp_instance);
+  return smp_instance;
+}
+
+void CZeroconfBrowser::ReleaseInstance()
+{
+  std::lock_guard<std::mutex> lock(singletonMutex);
+
+  delete smp_instance;
+  smp_instance = 0;
+}
+
+
+CZeroconfBrowser::ZeroconfService::ZeroconfService(const std::string& fcr_name, const std::string& fcr_type, const std::string& fcr_domain):
+  m_name(fcr_name),
+  m_domain(fcr_domain)
+{
+  SetType(fcr_type);
+}
+void CZeroconfBrowser::ZeroconfService::SetName(const std::string& fcr_name)
+{
+  m_name = fcr_name;
+}
+
+void CZeroconfBrowser::ZeroconfService::SetType(const std::string& fcr_type)
+{
+  if(fcr_type.empty())
+    throw std::runtime_error("CZeroconfBrowser::ZeroconfService::SetType invalid type: "+ fcr_type);
+  //make sure there's a "." as last char (differs for avahi and osx implementation of browsers)
+  if(fcr_type[fcr_type.length() - 1] != '.')
+    m_type = fcr_type + ".";
+  else
+    m_type = fcr_type;
+}
+
+void CZeroconfBrowser::ZeroconfService::SetDomain(const std::string& fcr_domain)
+{
+  m_domain = fcr_domain;
+}
+
+void CZeroconfBrowser::ZeroconfService::SetHostname(const std::string& fcr_hostname)
+{
+  m_hostname = fcr_hostname;
+}
+
+void CZeroconfBrowser::ZeroconfService::SetIP(const std::string& fcr_ip)
+{
+  m_ip = fcr_ip;
+}
+
+void CZeroconfBrowser::ZeroconfService::SetPort(int f_port)
+{
+  m_port = f_port;
+}
+
+void CZeroconfBrowser::ZeroconfService::SetTxtRecords(const tTxtRecordMap& txt_records)
+{
+  m_txtrecords_map = txt_records;
+
+  CLog::Log(LOGDEBUG,"CZeroconfBrowser: dump txt-records");
+  for (const auto& it : m_txtrecords_map)
+  {
+    CLog::Log(LOGDEBUG, "CZeroconfBrowser:  key: {} value: {}", it.first, it.second);
+  }
+}
+
+std::string CZeroconfBrowser::ZeroconfService::toPath(const ZeroconfService& fcr_service)
+{
+  return fcr_service.m_type + '@' + fcr_service.m_domain + '@' + fcr_service.m_name;
+}
+
+CZeroconfBrowser::ZeroconfService CZeroconfBrowser::ZeroconfService::fromPath(const std::string& fcr_path)
+{
+  if( fcr_path.empty() )
+    throw std::runtime_error("CZeroconfBrowser::ZeroconfService::fromPath input string empty!");
+
+  size_t pos1 = fcr_path.find('@'); //first @
+  size_t pos2 = fcr_path.find('@', pos1 + 1); //second
+
+  if(pos1 == std::string::npos || pos2 == std::string::npos)
+    throw std::runtime_error("CZeroconfBrowser::ZeroconfService::fromPath invalid input path");
+
+  return ZeroconfService(
+    fcr_path.substr(pos2 + 1, fcr_path.length()), //name
+    fcr_path.substr(0, pos1), //type
+    fcr_path.substr(pos1 + 1, pos2-(pos1+1)) //domain
+    );
+}