66 files changed, 2661 insertions, 1560 deletions
diff --git a/Swiften/Base/API.h b/Swiften/Base/API.h
index 388ad0a..06359ba 100644
--- a/Swiften/Base/API.h
+++ b/Swiften/Base/API.h
@@ -1,15 +1,16 @@
 /*
- * Copyright (c) 2012-2013 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2012-2014 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
 #include <Swiften/Base/Platform.h>
+#include <boost/config.hpp>
 
 #ifdef SWIFTEN_STATIC
-# define SWIFTEN_API 
+# define SWIFTEN_API
 #else
 # ifdef SWIFTEN_PLATFORM_WINDOWS
 #  ifdef SWIFTEN_BUILDING
@@ -20,6 +21,22 @@
 # elif __GNUC__ >= 4
 #  define SWIFTEN_API __attribute__((visibility("default")))
 # else
-#  define SWIFTEN_API 
+#  define SWIFTEN_API
 # endif
 #endif
+
+#ifdef BOOST_NO_DEFAULTED_FUNCTIONS
+#  define SWIFTEN_DEFAULT_COPY_CONSTRUCTOR(cls)
+#  define SWIFTEN_DEFAULT_COPY_ASSIGMNENT_OPERATOR(cls)
+#else
+#  define SWIFTEN_DEFAULT_COPY_CONSTRUCTOR(cls) \
+        cls(const cls&) = default;
+#  define SWIFTEN_DEFAULT_COPY_ASSIGMNENT_OPERATOR(cls) \
+        cls& operator=(const cls&) = default;
+#endif
+
+#ifdef BOOST_NO_NOEXCEPT
+#define SWIFTEN_NOEXCEPT throw()
+#else
+#define SWIFTEN_NOEXCEPT noexcept
+#endif
diff --git a/Swiften/Base/Algorithm.h b/Swiften/Base/Algorithm.h
index d5edab1..ee761b7 100644
--- a/Swiften/Base/Algorithm.h
+++ b/Swiften/Base/Algorithm.h
@@ -1,154 +1,187 @@
 /*
- * Copyright (c) 2011 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2011-2018 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
-#include <vector>
+#include <algorithm>
 #include <list>
 #include <map>
-#include <algorithm>
+#include <string>
+#include <vector>
 
 namespace Swift {
 
-	/*
-	 * Generic erase()
-	 */
-	namespace Detail {
-		struct VectorCategory {};
-		struct ListCategory {};
-		struct MapCategory {};
-
-		template<typename T> 
-		struct ContainerTraits;
-
-		template<typename A, typename B> 
-		struct ContainerTraits< std::vector<A, B> > {
-			typedef VectorCategory Category;
-		};
-
-		template<>
-		struct ContainerTraits< std::string > {
-			typedef VectorCategory Category;
-		};
-
-		template<typename A, typename B> 
-		struct ContainerTraits< std::list<A, B> > {
-			typedef ListCategory Category;
-		};
-
-		template<typename A, typename B, typename C, typename D> 
-		struct ContainerTraits< std::map<A, B, C, D> > {
-			typedef MapCategory Category;
-		};
-
-		template<typename C, typename V>
-		void eraseImpl(C& c, const V& v, VectorCategory) {
-			c.erase(std::remove(c.begin(), c.end(), v), c.end());
-		}
-
-		template<typename C, typename V>
-		void eraseImpl(C& c, const V& v, ListCategory) {
-			c.remove(v);
-		}
-
-		template<typename C, typename V>
-		void eraseImpl(C& c, const V& v, MapCategory) {
-		  for (typename C::iterator it = c.begin(); it != c.end(); ) {
-				if (it->second == v) {
-					c.erase(it++);
-				}
-				else {
-					++it;
-				}
-			}
-		}
-
-		template<typename C, typename P>
-		void eraseIfImpl(C& c, const P& p, MapCategory) {
-		  for (typename C::iterator it = c.begin(); it != c.end(); ) {
-				if (p(*it)) {
-					c.erase(it++);
-				}
-				else {
-					++it;
-				}
-			}
-		}
-		
-		template<typename C, typename P>
-		void eraseIfImpl(C& c, const P& p, VectorCategory) {
-			c.erase(std::remove_if(c.begin(), c.end(), p), c.end());
-		}
-	}
-
-	template<typename C, typename V>
-	void erase(C& container, const V& value) {
-		Detail::eraseImpl(container, value, typename Detail::ContainerTraits<C>::Category());
-	}
-
-	template<typename C, typename P>
-	void eraseIf(C& container, const P& predicate) {
-		Detail::eraseIfImpl(container, predicate, typename Detail::ContainerTraits<C>::Category());
-	}
-
-	template<typename Source, typename Target>
-	void append(Target& target, const Source& source) {
-		target.insert(target.end(), source.begin(), source.end());
-	}
-
-	template<typename Source, typename Target>
-	void assign(Target& target, const Source& source) {
-		target.assign(source.begin(), source.end());
-	}
-
-	template<typename A, typename B, typename C, typename D> 
-	B get(const std::map<A, B, C, D>& map, const A& key, const B& defaultValue) {
-		typename std::map<A, B, C, D>::const_iterator i = map.find(key);
-		if (i != map.end()) {
-			return i->second;
-		}
-		else {
-			return defaultValue;
-		}
-	}
-
-	template<typename Container>
-	void safeClear(Container& c) {
-		std::fill(c.begin(), c.end(), 0);
-		c.clear();
-	}
-
-	/*
-	 * Functors
-	 */
-	template<typename K, typename V>
-	class PairFirstEquals {
-		public:
-			PairFirstEquals(const K& value) : value(value) {
-			}
-
-			bool operator()(const std::pair<K,V>& pair) const {
-				return pair.first == value;
-			}
-
-		private:
-			K value;
-	};
-
-	template<typename K, typename V>
-	class PairSecondEquals {
-		public:
-			PairSecondEquals(const V& value) : value(value) {
-			}
-
-			bool operator()(const std::pair<K,V>& pair) const {
-				return pair.second == value;
-			}
-
-		private:
-			V value;
-	};
+    /*
+     * Generic erase()
+     */
+    namespace Detail {
+        struct VectorCategory {};
+        struct ListCategory {};
+        struct MapCategory {};
+
+        template<typename T>
+        struct ContainerTraits;
+
+        template<typename A, typename B>
+        struct ContainerTraits< std::vector<A, B> > {
+            typedef VectorCategory Category;
+        };
+
+        template<>
+        struct ContainerTraits< std::string > {
+            typedef VectorCategory Category;
+        };
+
+        template<typename A, typename B>
+        struct ContainerTraits< std::list<A, B> > {
+            typedef ListCategory Category;
+        };
+
+        template<typename A, typename B, typename C, typename D>
+        struct ContainerTraits< std::map<A, B, C, D> > {
+            typedef MapCategory Category;
+        };
+
+        template<typename C, typename V>
+        void eraseImpl(C& c, const V& v, VectorCategory) {
+            c.erase(std::remove(c.begin(), c.end(), v), c.end());
+        }
+
+        template<typename C, typename V>
+        void eraseImpl(C& c, const V& v, ListCategory) {
+            c.remove(v);
+        }
+
+        template<typename C, typename V>
+        void eraseImpl(C& c, const V& v, MapCategory) {
+          for (typename C::iterator it = c.begin(); it != c.end(); ) {
+                if (it->second == v) {
+                    c.erase(it++);
+                }
+                else {
+                    ++it;
+                }
+            }
+        }
+
+        template<typename C, typename P>
+        void eraseIfImpl(C& c, const P& p, MapCategory) {
+          for (typename C::iterator it = c.begin(); it != c.end(); ) {
+                if (p(*it)) {
+                    c.erase(it++);
+                }
+                else {
+                    ++it;
+                }
+            }
+        }
+
+        template<typename C, typename P>
+        void eraseIfImpl(C& c, const P& p, VectorCategory) {
+            c.erase(std::remove_if(c.begin(), c.end(), p), c.end());
+        }
+    }
+
+    template<typename C, typename V>
+    void erase(C& container, const V& value) {
+        Detail::eraseImpl(container, value, typename Detail::ContainerTraits<C>::Category());
+    }
+
+    template<typename C, typename P>
+    void eraseIf(C& container, const P& predicate) {
+        Detail::eraseIfImpl(container, predicate, typename Detail::ContainerTraits<C>::Category());
+    }
+
+    template<typename Source, typename Target>
+    void append(Target& target, const Source& source) {
+        target.insert(target.end(), source.begin(), source.end());
+    }
+
+    template<typename Source, typename Target>
+    void assign(Target& target, const Source& source) {
+        target.assign(source.begin(), source.end());
+    }
+
+    template<typename A, typename B, typename C, typename D>
+    B get(const std::map<A, B, C, D>& map, const A& key, const B& defaultValue) {
+        typename std::map<A, B, C, D>::const_iterator i = map.find(key);
+        if (i != map.end()) {
+            return i->second;
+        }
+        else {
+            return defaultValue;
+        }
+    }
+
+    template<typename Container>
+    void safeClear(Container& c) {
+        std::fill(c.begin(), c.end(), 0);
+        c.clear();
+    }
+
+    /*
+     * Functors
+     */
+    template<typename K, typename V>
+    class PairFirstEquals {
+        public:
+            PairFirstEquals(const K& value) : value(value) {
+            }
+
+            bool operator()(const std::pair<K,V>& pair) const {
+                return pair.first == value;
+            }
+
+        private:
+            K value;
+    };
+
+    template<typename K, typename V>
+    class PairSecondEquals {
+        public:
+            PairSecondEquals(const V& value) : value(value) {
+            }
+
+            bool operator()(const std::pair<K,V>& pair) const {
+                return pair.second == value;
+            }
+
+        private:
+            V value;
+    };
+
+    template <typename Map>
+    bool key_compare(Map const& lhs, Map const& rhs) {
+
+        auto pred = [](decltype(*lhs.begin()) a, decltype(a) b) { return a.first == b.first; };
+
+        return lhs.size() == rhs.size() && std::equal(lhs.begin(), lhs.end(), rhs.begin(), pred);
+    }
+
+    /**
+     * Ranges
+     */
+    template <typename T>
+    class range_t {
+        public:
+            range_t(T b, T e) : b_(b), e_(e) {}
+
+            T begin() {
+                return b_;
+            }
+            T end() {
+                return e_;
+            }
+        private:
+            T b_;
+            T e_;
+    };
+
+    template <typename T>
+    range_t<T> range(T b, T e) {
+        return range_t<T>(b, e);
+    }
 }
diff --git a/Swiften/Base/Atomic.h b/Swiften/Base/Atomic.h
new file mode 100644
index 0000000..ae065d4
--- /dev/null
+++ b/Swiften/Base/Atomic.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2015-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#pragma once
+
+#include <mutex>
+
+namespace Swift {
+
+/**
+ * This class template provides a read/write access synchronized wrapper for other types.
+ */
+template <typename ValueType>
+class Atomic {
+    public:
+        Atomic(const ValueType& v) : value_(v) {
+        }
+
+        /**
+         * Synchronized write access.
+         */
+        Atomic<ValueType>& operator=(const ValueType& newValue) {
+            std::lock_guard<std::mutex> lock(valueMutex_);
+            value_ = newValue;
+            return *this;
+        }
+
+        /**
+         * Synchronized read access.
+         */
+        operator ValueType() {
+            std::lock_guard<std::mutex> lock(valueMutex_);
+            return value_;
+        }
+
+    private:
+        std::mutex valueMutex_;
+        ValueType value_;
+};
+
+}
diff --git a/Swiften/Base/BoostFilesystemVersion.h b/Swiften/Base/BoostFilesystemVersion.h
index 1b1676c..fff6ce9 100644
--- a/Swiften/Base/BoostFilesystemVersion.h
+++ b/Swiften/Base/BoostFilesystemVersion.h
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010-2012 Kevin Smith
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2012 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 #pragma once
 
diff --git a/Swiften/Base/BoostRandomGenerator.cpp b/Swiften/Base/BoostRandomGenerator.cpp
deleted file mode 100644
index a661639..0000000
--- a/Swiften/Base/BoostRandomGenerator.cpp
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (c) 2012 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
- */
-
-#include <Swiften/Base/BoostRandomGenerator.h>
-
-#include <numeric>
-#include <boost/random/uniform_int.hpp>
-#include <boost/random/variate_generator.hpp>
-#include <ctime>
-
-namespace Swift {
-
-BoostRandomGenerator::BoostRandomGenerator() {
-	// FIXME: Not a good seed
-	generator.seed(static_cast<unsigned int>(std::time(0)));
-}
-
-int BoostRandomGenerator::generateRandomInteger(int maximum) {
-	boost::uniform_int<> distribution(0, maximum);
-	return distribution(generator);
-}
-
-}
diff --git a/Swiften/Base/BoostRandomGenerator.h b/Swiften/Base/BoostRandomGenerator.h
deleted file mode 100644
index 6065ff3..0000000
--- a/Swiften/Base/BoostRandomGenerator.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (c) 2012 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
- */
-
-#pragma once
-
-#include <Swiften/Base/RandomGenerator.h>
-#include <Swiften/Base/Override.h>
-
-#include <boost/random/mersenne_twister.hpp>
-
-namespace Swift {
-	class BoostRandomGenerator : public RandomGenerator{
-		public:
-			BoostRandomGenerator();
-
-			int generateRandomInteger(int max) SWIFTEN_OVERRIDE;
-
-		private:
-			boost::mt19937 generator;
-	};
-}
diff --git a/Swiften/Base/ByteArray.cpp b/Swiften/Base/ByteArray.cpp
index 466db5f..882421d 100644
--- a/Swiften/Base/ByteArray.cpp
+++ b/Swiften/Base/ByteArray.cpp
@@ -1,50 +1,50 @@
 /*
- * Copyright (c) 2010-2013 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/ByteArray.h>
 
-#include <boost/numeric/conversion/cast.hpp>
 #include <boost/filesystem/fstream.hpp>
+#include <boost/numeric/conversion/cast.hpp>
 
 namespace Swift {
 
 static const int BUFFER_SIZE = 4096;
 
 void readByteArrayFromFile(ByteArray& data, const boost::filesystem::path& file) {
-	boost::filesystem::ifstream input(file, std::ios_base::in|std::ios_base::binary);
-	while (input.good()) {
-		size_t oldSize = data.size();
-		data.resize(oldSize + BUFFER_SIZE);
-		input.read(reinterpret_cast<char*>(&data[oldSize]), BUFFER_SIZE);
-		data.resize(oldSize + boost::numeric_cast<size_t>(input.gcount()));
-	}
-	input.close();
+    boost::filesystem::ifstream input(file, std::ios_base::in|std::ios_base::binary);
+    while (input.good()) {
+        size_t oldSize = data.size();
+        data.resize(oldSize + BUFFER_SIZE);
+        input.read(reinterpret_cast<char*>(&data[oldSize]), BUFFER_SIZE);
+        data.resize(oldSize + boost::numeric_cast<size_t>(input.gcount()));
+    }
+    input.close();
 }
 
 std::vector<unsigned char> createByteArray(const std::string& s) {
-	return std::vector<unsigned char>(s.begin(), s.end());
+    return std::vector<unsigned char>(s.begin(), s.end());
 }
 
 std::vector<unsigned char> createByteArray(const char* c) {
-	std::vector<unsigned char> data;
-	while (*c) {
-		data.push_back(static_cast<unsigned char>(*c));
-		++c;
-	}
-	return data;
+    std::vector<unsigned char> data;
+    while (*c) {
+        data.push_back(static_cast<unsigned char>(*c));
+        ++c;
+    }
+    return data;
 }
 
 std::string byteArrayToString(const ByteArray& b) {
-	size_t i;
-	for (i = b.size(); i > 0; --i) {
-		if (b[i - 1] != 0) {
-			break;
-		}
-	}
-	return i > 0 ? std::string(reinterpret_cast<const char*>(vecptr(b)), i) : "";
+    size_t i;
+    for (i = b.size(); i > 0; --i) {
+        if (b[i - 1] != 0) {
+            break;
+        }
+    }
+    return i > 0 ? std::string(reinterpret_cast<const char*>(vecptr(b)), i) : "";
 }
 
 }
diff --git a/Swiften/Base/ByteArray.h b/Swiften/Base/ByteArray.h
index 133b75f..b567b5a 100644
--- a/Swiften/Base/ByteArray.h
+++ b/Swiften/Base/ByteArray.h
@@ -1,47 +1,48 @@
 /*
- * Copyright (c) 2010-2013 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
-#include <vector>
 #include <string>
+#include <vector>
 
-#include <Swiften/Base/API.h>
 #include <boost/filesystem/path.hpp>
 
+#include <Swiften/Base/API.h>
+
 namespace Swift {
-	typedef std::vector<unsigned char> ByteArray;
+    typedef std::vector<unsigned char> ByteArray;
+
+    SWIFTEN_API ByteArray createByteArray(const std::string& s);
+    SWIFTEN_API ByteArray createByteArray(const char* c);
 
-	SWIFTEN_API ByteArray createByteArray(const std::string& s);
-	SWIFTEN_API ByteArray createByteArray(const char* c);
+    inline ByteArray createByteArray(const unsigned char* c, size_t n) {
+        return ByteArray(c, c  + n);
+    }
 
-	inline ByteArray createByteArray(const unsigned char* c, size_t n) {
-		return ByteArray(c, c  + n);
-	}
+    inline ByteArray createByteArray(const char* c, size_t n) {
+        return ByteArray(c, c  + n);
+    }
 
-	inline ByteArray createByteArray(const char* c, size_t n) {
-		return ByteArray(c, c  + n);
-	}
+    inline ByteArray createByteArray(char c) {
+        return std::vector<unsigned char>(1, static_cast<unsigned char>(c));
+    }
 
-	inline ByteArray createByteArray(char c) {
-		return std::vector<unsigned char>(1, static_cast<unsigned char>(c));
-	}
+    template<typename T, typename A>
+    static const T* vecptr(const std::vector<T, A>& v) {
+        return v.empty() ? nullptr : &v[0];
+    }
 
-	template<typename T, typename A>
-	static const T* vecptr(const std::vector<T, A>& v) {
-		return v.empty() ? NULL : &v[0];
-	}
+    template<typename T, typename A>
+    static T* vecptr(std::vector<T, A>& v) {
+        return v.empty() ? nullptr : &v[0];
+    }
 
-	template<typename T, typename A>
-	static T* vecptr(std::vector<T, A>& v) {
-		return v.empty() ? NULL : &v[0];
-	}
-			
-	SWIFTEN_API std::string byteArrayToString(const ByteArray& b);
+    SWIFTEN_API std::string byteArrayToString(const ByteArray& b);
 
-	SWIFTEN_API void readByteArrayFromFile(ByteArray&, const boost::filesystem::path& file);
+    SWIFTEN_API void readByteArrayFromFile(ByteArray&, const boost::filesystem::path& file);
 }
 
diff --git a/Swiften/Base/Concat.h b/Swiften/Base/Concat.h
index 83a43b6..8923a8f 100644
--- a/Swiften/Base/Concat.h
+++ b/Swiften/Base/Concat.h
@@ -1,73 +1,41 @@
 /*
- * Copyright (c) 2011 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2011-2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
-namespace Swift {
-	template<typename C>
-	C concat(const C& c1, const C& c2) {
-		C result;
-		result.resize(c1.size() + c2.size());
-		std::copy(c2.begin(), c2.end(), std::copy(c1.begin(), c1.end(), result.begin()));
-		return result;
-	}
-
-	template<typename C>
-	C concat(const C& c1, const C& c2, const C& c3) {
-		C result;
-		result.resize(c1.size() + c2.size() + c3.size());
-		std::copy(c3.begin(), c3.end(), std::copy(c2.begin(), c2.end(), std::copy(c1.begin(), c1.end(), result.begin())));
-		return result;
-	}
-
-	template<typename C>
-	C concat(const C& c1, const C& c2, const C& c3, const C& c4) {
-		C result;
-		result.resize(c1.size() + c2.size() + c3.size() + c4.size());
-		std::copy(c4.begin(), c4.end(), std::copy(c3.begin(), c3.end(), std::copy(c2.begin(), c2.end(), std::copy(c1.begin(), c1.end(), result.begin()))));
-		return result;
-	}
-
-	template<typename C>
-	C concat(const C& c1, const C& c2, const C& c3, const C& c4, const C& c5) {
-		C result;
-		result.resize(c1.size() + c2.size() + c3.size() + c4.size() + c5.size());
-		std::copy(c5.begin(), c5.end(), std::copy(c4.begin(), c4.end(), std::copy(c3.begin(), c3.end(), std::copy(c2.begin(), c2.end(), std::copy(c1.begin(), c1.end(), result.begin())))));
-		return result;
-	}
+#include <algorithm>
+#include <type_traits>
 
-	template<typename C>
-	C concat(const C& c1, const C& c2, const C& c3, const C& c4, const C& c5, const C& c6) {
-		C result;
-		result.resize(c1.size() + c2.size() + c3.size() + c4.size() + c5.size() + c6.size());
-		std::copy(c6.begin(), c6.end(), std::copy(c5.begin(), c5.end(), std::copy(c4.begin(), c4.end(), std::copy(c3.begin(), c3.end(), std::copy(c2.begin(), c2.end(), std::copy(c1.begin(), c1.end(), result.begin()))))));
-		return result;
-	}
-
-	template<typename C>
-	C concat(const C& c1, const C& c2, const C& c3, const C& c4, const C& c5, const C& c6, const C& c7) {
-		C result;
-		result.resize(c1.size() + c2.size() + c3.size() + c4.size() + c5.size() + c6.size() + c7.size());
-		std::copy(c7.begin(), c7.end(), std::copy(c6.begin(), c6.end(), std::copy(c5.begin(), c5.end(), std::copy(c4.begin(), c4.end(), std::copy(c3.begin(), c3.end(), std::copy(c2.begin(), c2.end(), std::copy(c1.begin(), c1.end(), result.begin())))))));
-		return result;
-	}
-
-	template<typename C>
-	C concat(const C& c1, const C& c2, const C& c3, const C& c4, const C& c5, const C& c6, const C& c7, const C& c8) {
-		C result;
-		result.resize(c1.size() + c2.size() + c3.size() + c4.size() + c5.size() + c6.size() + c7.size() + c8.size());
-		std::copy(c8.begin(), c8.end(), std::copy(c7.begin(), c7.end(), std::copy(c6.begin(), c6.end(), std::copy(c5.begin(), c5.end(), std::copy(c4.begin(), c4.end(), std::copy(c3.begin(), c3.end(), std::copy(c2.begin(), c2.end(), std::copy(c1.begin(), c1.end(), result.begin()))))))));
-		return result;
-	}
+namespace Swift {
+    template<typename V1, typename V2, typename... Rest>
+    std::size_t getReserveAmount(V1 const& v1, V2 const& v2, Rest const&... rest) SWIFTEN_NOEXCEPT
+    {
+        // Total size of the concatenated output is equal to sum of sizes of all the containers that were passed in.
+        // Two first can be accessed directly:
+        std::size_t sizeSum = v1.size() + v2.size();
+        // While the rest needs to be calculated in parameter pack expansion:
+        // http://stackoverflow.com/a/25683817/61574
+        // Pack expansion can occur inside a braced-init-list - dummy array is used for that (with side effect of accumulating the size)
+        int dummy[] = {0, ((sizeSum += rest.size()), void(), 0)...};
+
+        (void)dummy; // dummy is unused - suppress compiler warning
+        return sizeSum;
+}
 
-	template<typename C>
-	C concat(const C& c1, const C& c2, const C& c3, const C& c4, const C& c5, const C& c6, const C& c7, const C& c8, const C& c9) {
-		C result;
-		result.resize(c1.size() + c2.size() + c3.size() + c4.size() + c5.size() + c6.size() + c7.size() + c8.size() + c9.size());
-		std::copy(c9.begin(), c9.end(), std::copy(c8.begin(), c8.end(), std::copy(c7.begin(), c7.end(), std::copy(c6.begin(), c6.end(), std::copy(c5.begin(), c5.end(), std::copy(c4.begin(), c4.end(), std::copy(c3.begin(), c3.end(), std::copy(c2.begin(), c2.end(), std::copy(c1.begin(), c1.end(), result.begin())))))))));
-		return result;
-	}
+    template<typename V1, typename V2, typename... Rest>
+    typename std::decay<V1>::type concat(V1&& v1, V2&& v2, Rest&&... rest) {
+        // Create the output container and reserve the required amount of space
+        typename std::decay<V1>::type v;
+        v.reserve(getReserveAmount(v1, v2, rest...));
+        // Insert the elements from input containers to output. Directly for the first two:
+        v.insert(v.cend(), v1.cbegin(), v1.cend());
+        v.insert(v.cend(), v2.cbegin(), v2.cend());
+        // Use pack expansion for the others:
+        int dummy[] = {0, ((v.insert(v.cend(), rest.cbegin(), rest.cend())), void(), 0 )...};
+        (void)dummy;
+        return v;
+    }
 }
diff --git a/Swiften/Base/DateTime.cpp b/Swiften/Base/DateTime.cpp
index 5d192c4..23b3b84 100644
--- a/Swiften/Base/DateTime.cpp
+++ b/Swiften/Base/DateTime.cpp
@@ -1,39 +1,48 @@
 /*
- * Copyright (c) 2011 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2011-2019 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/DateTime.h>
 
 #include <locale>
-#include <boost/date_time/time_facet.hpp>
+
+#include <boost/date_time/c_local_time_adjustor.hpp>
 #include <boost/date_time/local_time/local_time.hpp>
 #include <boost/date_time/posix_time/posix_time.hpp>
-#include <boost/date_time/c_local_time_adjustor.hpp>
+#include <boost/date_time/time_facet.hpp>
 
+#include <Swiften/Base/Log.h>
 #include <Swiften/Base/String.h>
 
 namespace Swift {
 
 boost::posix_time::ptime stringToDateTime(const std::string& string) {
-	static std::locale locale(std::locale::classic(), new boost::local_time::local_time_input_facet("%Y-%m-%d %H:%M:%S%F%ZP"));
-	std::istringstream stream(string); 
-	stream.imbue(locale);
-	boost::local_time::local_date_time result(boost::date_time::not_a_date_time);
-	stream >> result;
-	return result.utc_time();
+    static std::locale locale(std::locale::classic(), new boost::local_time::local_time_input_facet("%Y-%m-%d %H:%M:%S%F%ZP"));
+    std::istringstream stream(string);
+    stream.imbue(locale);
+    boost::local_time::local_date_time result(boost::date_time::not_a_date_time);
+    stream >> result;
+    return result.utc_time();
 }
 
 std::string dateTimeToString(const boost::posix_time::ptime& time) {
-	std::string stampString = std::string(boost::posix_time::to_iso_extended_string(time));
-	String::replaceAll(stampString, ',', ".");
-	stampString += "Z";
-	return stampString;
+    std::string stampString = std::string(boost::posix_time::to_iso_extended_string(time));
+    String::replaceAll(stampString, ',', ".");
+    stampString += "Z";
+    return stampString;
 }
 
 std::string dateTimeToLocalString(const boost::posix_time::ptime& time) {
-	return boost::posix_time::to_simple_string(boost::date_time::c_local_adjustor<boost::posix_time::ptime>::utc_to_local(time));
+    std::string localString;
+    try {
+        localString = boost::posix_time::to_simple_string(boost::date_time::c_local_adjustor<boost::posix_time::ptime>::utc_to_local(time));
+    }
+    catch(std::out_of_range& exception) {
+        SWIFT_LOG(debug) << exception.what();
+    }
+    return localString;
 }
 
 }
diff --git a/Swiften/Base/DateTime.h b/Swiften/Base/DateTime.h
index 891b170..36cff65 100644
--- a/Swiften/Base/DateTime.h
+++ b/Swiften/Base/DateTime.h
@@ -1,28 +1,29 @@
 /*
- * Copyright (c) 2011 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2011-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
-#include <Swiften/Base/API.h>
 #include <boost/date_time/posix_time/ptime.hpp>
 
+#include <Swiften/Base/API.h>
+
 namespace Swift {
-	/**
-	 * Converts a date formatted according to XEP-0082 into a ptime
-	 * object (in UTC).
-	 */
-	SWIFTEN_API boost::posix_time::ptime stringToDateTime(const std::string& string);
+    /**
+     * Converts a date formatted according to XEP-0082 into a ptime
+     * object (in UTC).
+     */
+    SWIFTEN_API boost::posix_time::ptime stringToDateTime(const std::string& string);
 
-	/**
-	 * Converts a UTC ptime object to a XEP-0082 formatted string.
-	 */
-	SWIFTEN_API std::string dateTimeToString(const boost::posix_time::ptime& time);
+    /**
+     * Converts a UTC ptime object to a XEP-0082 formatted string.
+     */
+    SWIFTEN_API std::string dateTimeToString(const boost::posix_time::ptime& time);
 
-	/**
-	 * Converts a UTC ptime object to a localized human readable string.
-	 */
-	SWIFTEN_API std::string dateTimeToLocalString(const boost::posix_time::ptime& time);
+    /**
+     * Converts a UTC ptime object to a localized human readable string.
+     */
+    SWIFTEN_API std::string dateTimeToLocalString(const boost::posix_time::ptime& time);
 }
diff --git a/Swiften/Base/Debug.cpp b/Swiften/Base/Debug.cpp
new file mode 100644
index 0000000..b4245c3
--- /dev/null
+++ b/Swiften/Base/Debug.cpp
@@ -0,0 +1,190 @@
+/*
+ * Copyright (c) 2015-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#include <Swiften/Base/Debug.h>
+
+#include <iostream>
+#include <memory>
+
+#include <Swiften/Client/ClientError.h>
+#include <Swiften/Client/ClientSession.h>
+#include <Swiften/Serializer/PayloadSerializer.h>
+#include <Swiften/Serializer/PayloadSerializers/FullPayloadSerializerCollection.h>
+#include <Swiften/Serializer/XMPPSerializer.h>
+
+std::ostream& operator<<(std::ostream& os, const Swift::ClientError& error) {
+    os << "ClientError(";
+    switch(error.getType()) {
+        case Swift::ClientError::UnknownError:
+            os << "UnknownError";
+            break;
+        case Swift::ClientError::DomainNameResolveError:
+            os << "DomainNameResolveError";
+            break;
+        case Swift::ClientError::ConnectionError:
+            os << "ConnectionError";
+            break;
+        case Swift::ClientError::ConnectionReadError:
+            os << "ConnectionReadError";
+            break;
+        case Swift::ClientError::ConnectionWriteError:
+            os << "ConnectionWriteError";
+            break;
+        case Swift::ClientError::XMLError:
+            os << "XMLError";
+            break;
+        case Swift::ClientError::AuthenticationFailedError:
+            os << "AuthenticationFailedError";
+            break;
+        case Swift::ClientError::CompressionFailedError:
+            os << "CompressionFailedError";
+            break;
+        case Swift::ClientError::ServerVerificationFailedError:
+            os << "ServerVerificationFailedError";
+            break;
+        case Swift::ClientError::NoSupportedAuthMechanismsError:
+            os << "NoSupportedAuthMechanismsError";
+            break;
+        case Swift::ClientError::UnexpectedElementError:
+            os << "UnexpectedElementError";
+            break;
+        case Swift::ClientError::ResourceBindError:
+            os << "ResourceBindError";
+            break;
+        case Swift::ClientError::SessionStartError:
+            os << "SessionStartError";
+            break;
+        case Swift::ClientError::StreamError:
+            os << "StreamError";
+            break;
+        case Swift::ClientError::TLSError:
+            os << "TLSError";
+            break;
+        case Swift::ClientError::ClientCertificateLoadError:
+            os << "ClientCertificateLoadError";
+            break;
+        case Swift::ClientError::ClientCertificateError:
+            os << "ClientCertificateError";
+            break;
+        case Swift::ClientError::CertificateCardRemoved:
+            os << "CertificateCardRemoved";
+            break;
+        case Swift::ClientError::UnknownCertificateError:
+            os << "UnknownCertificateError";
+            break;
+        case Swift::ClientError::CertificateExpiredError:
+            os << "CertificateExpiredError";
+            break;
+        case Swift::ClientError::CertificateNotYetValidError:
+            os << "CertificateNotYetValidError";
+            break;
+        case Swift::ClientError::CertificateSelfSignedError:
+            os << "CertificateSelfSignedError";
+            break;
+        case Swift::ClientError::CertificateRejectedError:
+            os << "CertificateRejectedError";
+            break;
+        case Swift::ClientError::CertificateUntrustedError:
+            os << "CertificateUntrustedError";
+            break;
+        case Swift::ClientError::InvalidCertificatePurposeError:
+            os << "InvalidCertificatePurposeError";
+            break;
+        case Swift::ClientError::CertificatePathLengthExceededError:
+            os << "CertificatePathLengthExceededError";
+            break;
+        case Swift::ClientError::InvalidCertificateSignatureError:
+            os << "InvalidCertificateSignatureError";
+            break;
+        case Swift::ClientError::InvalidCAError:
+            os << "InvalidCAError";
+            break;
+        case Swift::ClientError::InvalidServerIdentityError:
+            os << "InvalidServerIdentityError";
+            break;
+        case Swift::ClientError::RevokedError:
+            os << "RevokedError";
+            break;
+        case Swift::ClientError::RevocationCheckFailedError:
+            os << "RevocationCheckFailedError";
+            break;
+    }
+    os << ")";
+    return os;
+}
+
+std::ostream& operator<<(std::ostream& os, Swift::Element* ele) {
+    using namespace Swift;
+
+    std::shared_ptr<Element> element = std::shared_ptr<Element>(ele);
+
+    std::shared_ptr<Payload> payload = std::dynamic_pointer_cast<Payload>(element);
+    if (payload) {
+         FullPayloadSerializerCollection payloadSerializerCollection;
+         PayloadSerializer *serializer = payloadSerializerCollection.getPayloadSerializer(payload);
+         os << "Payload(" << serializer->serialize(payload) << ")";
+         return os;
+    }
+    std::shared_ptr<ToplevelElement> topLevelElement = std::dynamic_pointer_cast<ToplevelElement>(element);
+    if (topLevelElement) {
+        FullPayloadSerializerCollection payloadSerializerCollection;
+        XMPPSerializer xmppSerializer(&payloadSerializerCollection, ClientStreamType, false);
+        SafeByteArray serialized = xmppSerializer.serializeElement(topLevelElement);
+        os << "TopLevelElement(" << safeByteArrayToString(serialized) << ")";
+        return os;
+    }
+    os << "Element(Unknown)";
+    return os;
+}
+
+std::ostream& operator<<(std::ostream& os, Swift::ClientSession::State state) {
+    using CS = Swift::ClientSession;
+    switch (state) {
+        case CS::State::Initial:
+            os << "ClientSession::State::Initial";
+            break;
+        case CS::State::WaitingForStreamStart:
+            os << "ClientSession::State::WaitingForStreamStart";
+            break;
+        case CS::State::Negotiating:
+            os << "ClientSession::State::Negotiating";
+            break;
+        case CS::State::Compressing:
+            os << "ClientSession::State::Compressing";
+            break;
+        case CS::State::WaitingForEncrypt:
+            os << "ClientSession::State::WaitingForEncrypt";
+            break;
+        case CS::State::Encrypting:
+            os << "ClientSession::State::Encrypting";
+            break;
+        case CS::State::WaitingForCredentials:
+            os << "ClientSession::State::WaitingForCredentials";
+            break;
+        case CS::State::Authenticating:
+            os << "ClientSession::State::Authenticating";
+            break;
+        case CS::State::EnablingSessionManagement:
+            os << "ClientSession::State::EnablingSessionManagement";
+            break;
+        case CS::State::BindingResource:
+            os << "ClientSession::State::BindingResource";
+            break;
+        case CS::State::StartingSession:
+            os << "ClientSession::State::StartingSession";
+            break;
+        case CS::State::Initialized:
+            os << "ClientSession::State::Initialized";
+            break;
+        case CS::State::Finishing:
+            os << "ClientSession::State::Finishing";
+            break;
+        case CS::State::Finished:
+            os << "ClientSession::State::Finished";
+            break;
+    }
+    return os;
+}
diff --git a/Swiften/Base/Debug.h b/Swiften/Base/Debug.h
new file mode 100644
index 0000000..75575de
--- /dev/null
+++ b/Swiften/Base/Debug.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2015-2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#pragma once
+
+#include <iosfwd>
+
+#include <Swiften/Client/ClientSession.h>
+
+namespace Swift {
+    class ClientError;
+    class Element;
+}
+
+SWIFTEN_API std::ostream& operator<<(std::ostream& os, const Swift::ClientError& error);
+
+SWIFTEN_API std::ostream& operator<<(std::ostream& os, Swift::Element* ele);
+
+SWIFTEN_API std::ostream& operator<<(std::ostream& os, Swift::ClientSession::State state);
diff --git a/Swiften/Base/Error.cpp b/Swiften/Base/Error.cpp
index 60ad7ac..4745f34 100644
--- a/Swiften/Base/Error.cpp
+++ b/Swiften/Base/Error.cpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/Error.h>
diff --git a/Swiften/Base/Error.h b/Swiften/Base/Error.h
index d9f3b91..af4f27e 100644
--- a/Swiften/Base/Error.h
+++ b/Swiften/Base/Error.h
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
@@ -9,8 +9,11 @@
 #include <Swiften/Base/API.h>
 
 namespace Swift {
-	class SWIFTEN_API Error {
-		public:
-			virtual ~Error();
-	};
+    class SWIFTEN_API Error {
+        public:
+            Error() {}
+            SWIFTEN_DEFAULT_COPY_CONSTRUCTOR(Error)
+            SWIFTEN_DEFAULT_COPY_ASSIGMNENT_OPERATOR(Error)
+            virtual ~Error();
+    };
 }
diff --git a/Swiften/Base/FileSize.cpp b/Swiften/Base/FileSize.cpp
new file mode 100644
index 0000000..a335337
--- /dev/null
+++ b/Swiften/Base/FileSize.cpp
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#include <Swiften/Base/FileSize.h>
+
+#include <boost/format.hpp>
+
+namespace Swift {
+
+std::string formatSize(const boost::uintmax_t bytes) {
+    static const char *siPrefix[] = {"k", "M", "G", "T", "P", "E", "Z", "Y", nullptr};
+    int power = 0;
+    double engBytes = bytes;
+    while (engBytes >= 1000) {
+        ++power;
+        engBytes = engBytes / 1000.0;
+    }
+    return str( boost::format("%.1lf %sB") % engBytes % (power > 0 ? siPrefix[power-1] : "") );
+}
+
+}
diff --git a/Swiften/Base/FileSize.h b/Swiften/Base/FileSize.h
new file mode 100644
index 0000000..af303cc
--- /dev/null
+++ b/Swiften/Base/FileSize.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#pragma once
+
+#include <string>
+
+#include <boost/cstdint.hpp>
+
+#include <Swiften/Base/API.h>
+
+namespace Swift {
+
+SWIFTEN_API std::string formatSize(const boost::uintmax_t bytes);
+
+}
diff --git a/Swiften/Base/IDGenerator.cpp b/Swiften/Base/IDGenerator.cpp
index 5556f7b..b59a39c 100644
--- a/Swiften/Base/IDGenerator.cpp
+++ b/Swiften/Base/IDGenerator.cpp
@@ -1,24 +1,27 @@
 /*
- * Copyright (c) 2010-2011 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/IDGenerator.h>
 
+#include <boost/lexical_cast.hpp>
 #include <boost/uuid/uuid.hpp>
-#include <boost/uuid/uuid_io.hpp>
 #include <boost/uuid/uuid_generators.hpp>
-#include <boost/lexical_cast.hpp>
+#include <boost/uuid/uuid_io.hpp>
 
 namespace Swift {
 
 IDGenerator::IDGenerator() {
 }
 
+IDGenerator::~IDGenerator() {
+}
+
 std::string IDGenerator::generateID() {
-	static boost::uuids::random_generator generator;
-	return boost::lexical_cast<std::string>(generator());
+    static boost::uuids::random_generator generator;
+    return boost::lexical_cast<std::string>(generator());
 }
 
 }
diff --git a/Swiften/Base/IDGenerator.h b/Swiften/Base/IDGenerator.h
index 14ecfdc..6b53994 100644
--- a/Swiften/Base/IDGenerator.h
+++ b/Swiften/Base/IDGenerator.h
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
@@ -11,10 +11,11 @@
 #include <Swiften/Base/API.h>
 
 namespace Swift {
-	class SWIFTEN_API IDGenerator {
-		public:
-			IDGenerator();
+    class SWIFTEN_API IDGenerator {
+        public:
+            IDGenerator();
+            virtual ~IDGenerator();
 
-			std::string generateID();
-	};
+            virtual std::string generateID();
+    };
 }
diff --git a/Swiften/Base/LRUCache.h b/Swiften/Base/LRUCache.h
new file mode 100644
index 0000000..1f92612
--- /dev/null
+++ b/Swiften/Base/LRUCache.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#pragma once
+
+#include <functional>
+#include <utility>
+
+#include <boost/multi_index_container.hpp>
+#include <boost/multi_index/member.hpp>
+#include <boost/multi_index/hashed_index.hpp>
+#include <boost/multi_index/sequenced_index.hpp>
+#include <boost/optional.hpp>
+
+namespace Swift {
+
+
+/**
+ * The \ref LRUCache template class implements a lookup cache which removes
+ * the least recently used cached item from the cache, if the cache size hits
+ * the \p MAX_SIZE limit.
+ *
+ * An example use is a cache for entity capabilities hash to DiscoInfo.
+ */
+template <typename KEY_TYPE, typename VALUE_TYPE, size_t MAX_SIZE>
+class LRUCache {
+public:
+    using cacheMissFunction = std::function<boost::optional<VALUE_TYPE>(const KEY_TYPE& )>;
+
+public:
+    /**
+     * Inserts the key/value pair in the front of the cache. If the \p key
+     * already exists in the cache, it is moved to the front instead. If
+     * afterwards, the cahe size exceeds the \p MAX_SIZE limit, the least
+     * recently item is removed from the cache.
+     */
+    void insert(const KEY_TYPE& key, VALUE_TYPE value) {
+        auto pushResult = cache.push_front(entry_t(key, value));
+        if (!pushResult.second) {
+            cache.relocate(cache.begin(), pushResult.first);
+        }
+        else if (cache.size() > MAX_SIZE) {
+          cache.pop_back();
+        }
+    }
+
+    /**
+     * Looks up a cache entry based on the provided \p key and moves it back
+     * to the front of the cache. If there is no cache entry for the provided
+     * \p key, an uninitialized \p boost::optional is returned.
+     * If the optional \p missFunction is provided, it is called on a cache miss.
+     * If the \p missFunction returns an initialized \p boost::optional, the
+     * value is inserted in the cache.
+     */
+    boost::optional<VALUE_TYPE> get(const KEY_TYPE& key, cacheMissFunction missFunction = cacheMissFunction()) {
+        boost::optional<VALUE_TYPE> cachedValue;
+        auto cacheItemIterator = boost::multi_index::get<1>(cache).find(key);
+        if (cacheItemIterator != boost::multi_index::get<1>(cache).end()) {
+            cachedValue = cacheItemIterator->second;
+            cache.relocate(cache.begin(), cache.iterator_to(*cacheItemIterator));
+        }
+        else if (missFunction && (cachedValue = missFunction(key))) {
+            insert(key, cachedValue.get());
+        }
+        return cachedValue;
+    }
+
+private:
+    using entry_t =  std::pair<KEY_TYPE, VALUE_TYPE>;
+
+private:
+    boost::multi_index_container< entry_t, boost::multi_index::indexed_by< boost::multi_index::sequenced<>, boost::multi_index::hashed_unique<
+    BOOST_MULTI_INDEX_MEMBER(entry_t, KEY_TYPE, first)> > > cache;
+};
+
+}
diff --git a/Swiften/Base/Listenable.h b/Swiften/Base/Listenable.h
index 445dfd7..ae83f4e 100644
--- a/Swiften/Base/Listenable.h
+++ b/Swiften/Base/Listenable.h
@@ -1,52 +1,55 @@
 /*
- * Copyright (c) 2013 Remko Tronçon
- * Licensed under the GNU General Public License.
+ * Copyright (c) 2013-2015 Isode Limited.
+ * All rights reserved.
  * See the COPYING file for more information.
  */
 
 #pragma once
 
-#include <Swiften/Base/API.h>
-#include <boost/bind.hpp>
 #include <algorithm>
+#include <vector>
+
+#include <boost/bind.hpp>
+
+#include <Swiften/Base/API.h>
 
 namespace Swift {
-	template<typename T>
-	class SWIFTEN_API Listenable {
-		public:
-			void addListener(T* listener) {
-				listeners.push_back(listener);
-			}
-
-			void removeListener(T* listener) {
-				listeners.erase(std::remove(listeners.begin(), listeners.end(), listener), listeners.end());
-			}
-
-		protected:
-			template<typename F>
-			void notifyListeners(F event) {
-				for (typename std::vector<T*>::iterator i = listeners.begin(); i != listeners.end(); ++i) {
-					event(*i);
-				}
-			}
-
-			template<typename F, typename A1>
-			void notifyListeners(F f, const A1& a1) {
-				notifyListeners(boost::bind(f, _1, a1));
-			}
-
-			template<typename F, typename A1, typename A2>
-			void notifyListeners(F f, const A1& a1, const A2& a2) {
-				notifyListeners(boost::bind(f, _1, a1, a2));
-			}
-
-			template<typename F, typename A1, typename A2, typename A3>
-			void notifyListeners(F f, const A1& a1, const A2& a2, const A3& a3) {
-				notifyListeners(boost::bind(f, _1, a1, a2, a3));
-			}
-
-		private:
-			std::vector<T*> listeners;
-	};
+    template<typename T>
+    class SWIFTEN_API Listenable {
+        public:
+            void addListener(T* listener) {
+                listeners.push_back(listener);
+            }
+
+            void removeListener(T* listener) {
+                listeners.erase(std::remove(listeners.begin(), listeners.end(), listener), listeners.end());
+            }
+
+        protected:
+            template<typename F>
+            void notifyListeners(F event) {
+                for (typename std::vector<T*>::iterator i = listeners.begin(); i != listeners.end(); ++i) {
+                    event(*i);
+                }
+            }
+
+            template<typename F, typename A1>
+            void notifyListeners(F f, const A1& a1) {
+                notifyListeners(boost::bind(f, _1, a1));
+            }
+
+            template<typename F, typename A1, typename A2>
+            void notifyListeners(F f, const A1& a1, const A2& a2) {
+                notifyListeners(boost::bind(f, _1, a1, a2));
+            }
+
+            template<typename F, typename A1, typename A2, typename A3>
+            void notifyListeners(F f, const A1& a1, const A2& a2, const A3& a3) {
+                notifyListeners(boost::bind(f, _1, a1, a2, a3));
+            }
+
+        private:
+            std::vector<T*> listeners;
+    };
 }
 
diff --git a/Swiften/Base/Log.cpp b/Swiften/Base/Log.cpp
index 317798c..b6f1851 100644
--- a/Swiften/Base/Log.cpp
+++ b/Swiften/Base/Log.cpp
@@ -1,43 +1,83 @@
 /*
- * Copyright (c) 2010-2013 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2019 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/Log.h>
 
 #include <cstdio>
 
+#if defined(SWIFT_ANDROID_LOGGING) && defined(__ANDROID__)
+#include <android/log.h>
+#endif
+
 
 namespace Swift {
 
 static Log::Severity logLevel = Log::warning;
+std::unique_ptr<FILE, Log::LogFileClose> Log::logfile;
+Log::Callback Log::logCallback;
 
 Log::Log() {
 }
 
 Log::~Log() {
-	// Using stdio for thread safety (POSIX file i/o calls are guaranteed to be atomic)
-	fprintf(stderr, "%s", stream.str().c_str());
-	fflush(stderr);
+#if defined(SWIFT_ANDROID_LOGGING) && defined(__ANDROID__)
+    __android_log_print(ANDROID_LOG_VERBOSE, "Swift", stream.str().c_str(), 1);
+#else
+    // Using stdio for thread safety (POSIX file i/o calls are guaranteed to be atomic)
+    if (logCallback) {
+        logCallback(severity_, std::move(file_), line_, std::move(function_), stream.str());
+    }
+    else {
+        stream << std::endl;
+        if (logfile) {
+            fwrite(stream.str().c_str(), sizeof(char), stream.str().size(), logfile.get());
+            fflush(logfile.get());
+        }
+        else {
+            fwrite(stream.str().c_str(), sizeof(char), stream.str().size(), stderr);
+            fflush(stderr);
+        }
+    }
+#endif
 }
 
 std::ostringstream& Log::getStream(
-		Severity /*severity*/, 
-		const std::string& severityString, 
-		const std::string& file, 
-		int line,
-		const std::string& function) {
-	stream << "[" << severityString << "] " << file << ":" << line << " " << function << ": ";
-	return stream;
+        Severity severity,
+        std::string severityString,
+        std::string file,
+        int line,
+        std::string function) {
+    if (logCallback) {
+        severity_ = severity;
+        file_ = std::move(file);
+        line_ = line;
+        function_ = std::move(function);
+    }
+    else {
+        stream << "[" << severityString << "] " << file << ":" << line << " " << function << ": ";
+    }
+    return stream;
 }
 
 Log::Severity Log::getLogLevel() {
-	return logLevel;
+    return logLevel;
 }
 
 void Log::setLogLevel(Severity level) {
-	logLevel = level;
+    logLevel = level;
+}
+
+void Log::setLogFile(const std::string& fileName) {
+    if (!fileName.empty()) {
+        logfile = std::unique_ptr<FILE, Log::LogFileClose>(fopen(fileName.c_str(), "a"));
+    }
+}
+
+void Log::setLogCallback(Callback callback) {
+    Log::logCallback = callback;
 }
 
 }
diff --git a/Swiften/Base/Log.h b/Swiften/Base/Log.h
index a46860f..255e478 100644
--- a/Swiften/Base/Log.h
+++ b/Swiften/Base/Log.h
@@ -1,44 +1,63 @@
 /*
- * Copyright (c) 2010-2013 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2013 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
+#include <cstdio>
+#include <functional>
+#include <memory>
 #include <sstream>
 
 #include <Swiften/Base/API.h>
 
 namespace Swift {
-	class SWIFTEN_API Log {
-		public:
-			enum Severity {
-				error, warning, info, debug
-			};
-
-			Log();
-			~Log();
-
-			std::ostringstream& getStream(
-					Severity severity, 
-					const std::string& severityString, 
-					const std::string& file, 
-					int line,
-					const std::string& function);
-
-			static Severity getLogLevel();
-			static void setLogLevel(Severity level);
-
-		private:
-			std::ostringstream stream;
-	};
+    class SWIFTEN_API Log {
+        public:
+            enum Severity {
+                error, warning, info, debug
+            };
+            using Callback = std::function<void(Severity severity, std::string file, int line, std::string function, std::string message)>;
+
+            Log();
+            ~Log();
+
+            std::ostringstream& getStream(
+                    Severity severity,
+                    std::string severityString,
+                    std::string file,
+                    int line,
+                    std::string function);
+
+            static Severity getLogLevel();
+            static void setLogLevel(Severity level);
+            static void setLogFile(const std::string& fileName);
+            static void setLogCallback(Callback callback);
+
+        private:
+            struct LogFileClose {
+                void operator()(FILE* p) {
+                    if (p) {
+                        fclose(p);
+                    }
+                }
+            };
+            std::ostringstream stream;
+            static std::unique_ptr<FILE, LogFileClose> logfile;
+            static Callback logCallback;
+            Severity severity_;
+            std::string file_;
+            int line_;
+            std::string function_;
+    };
 }
 
 #define SWIFT_LOG(severity) \
-	if (Log::severity > Log::getLogLevel()) ; \
-	else Log().getStream(Log::severity, #severity, __FILE__, __LINE__, __FUNCTION__)
+    if (Log::severity > Log::getLogLevel()) ; \
+    else Log().getStream(Log::severity, #severity, __FILE__, __LINE__, __FUNCTION__)
 
 #define SWIFT_LOG_ASSERT(test, severity) \
-	if (Log::severity > Log::getLogLevel() || (test)) ; \
-	else Log().getStream(Log::severity, #severity, __FILE__, __LINE__, __FUNCTION__) << "Assertion failed: " << #test << ". "
+    if (Log::severity > Log::getLogLevel() || (test)) ; \
+    else Log().getStream(Log::severity, #severity, __FILE__, __LINE__, __FUNCTION__) << "Assertion failed: " << #test << ". "
diff --git a/Swiften/Base/LogSerializers.cpp b/Swiften/Base/LogSerializers.cpp
new file mode 100644
index 0000000..3f8e9ce
--- /dev/null
+++ b/Swiften/Base/LogSerializers.cpp
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2016-2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#include <Swiften/Base/LogSerializers.h>
+
+#include <Swiften/Elements/Presence.h>
+#include <Swiften/Network/BOSHConnection.h>
+
+namespace Swift {
+
+std::ostream& operator<<(std::ostream& stream, const Presence& presence) {
+    std::string typeString;
+    switch (presence.getType()) {
+        case Presence::Available:
+            typeString = "Available";
+            break;
+        case Presence::Error:
+            typeString = "Error";
+            break;
+        case Presence::Probe:
+            typeString = "Probe";
+            break;
+        case Presence::Subscribe:
+            typeString = "Subscribe";
+            break;
+        case Presence::Subscribed:
+            typeString = "Subscribed";
+            break;
+        case Presence::Unavailable:
+            typeString = "Unavailable";
+            break;
+        case Presence::Unsubscribe:
+            typeString = "Unsubscribe";
+            break;
+        case Presence::Unsubscribed:
+            typeString = "Unsubscribed";
+            break;
+    }
+
+    std::string showTypeString;
+    switch (presence.getShow()) {
+        case StatusShow::Online:
+            showTypeString = "Online";
+            break;
+        case StatusShow::Away:
+            showTypeString = "Away";
+            break;
+        case StatusShow::FFC:
+            showTypeString = "FFC";
+            break;
+        case StatusShow::DND:
+            showTypeString = "DND";
+            break;
+        case StatusShow::XA:
+            showTypeString = "XA";
+            break;
+        case StatusShow::None:
+            showTypeString = "None";
+            break;
+    }
+
+    stream << "Presence(" << "from: " << presence.getFrom() << ", to: " << presence.getTo() << ", type: " << typeString << ", status: " << showTypeString << ", priority: " << presence.getPriority() << ", '" << presence.getStatus() << "'" <<  " )";
+    return stream;
+}
+
+std::ostream& operator<<(std::ostream& stream, const BOSHError& boshError) {
+    std::string errorString;
+    switch (boshError.getType()) {
+        case BOSHError::BadRequest:
+            errorString = "BadRequest";
+            break;
+        case BOSHError::HostGone:
+            errorString = "HostGone";
+            break;
+        case BOSHError::HostUnknown:
+            errorString = "HostUnknown";
+            break;
+        case BOSHError::ImproperAddressing:
+            errorString = "ImproperAddressing";
+            break;
+        case BOSHError::InternalServerError:
+            errorString = "InternalServerError";
+            break;
+        case BOSHError::ItemNotFound:
+            errorString = "ItemNotFound";
+            break;
+        case BOSHError::OtherRequest:
+            errorString = "OtherRequest";
+            break;
+        case BOSHError::PolicyViolation:
+            errorString = "PolicyViolation";
+            break;
+        case BOSHError::RemoteConnectionFailed:
+            errorString = "RemoteConnectionFailed";
+            break;
+        case BOSHError::RemoteStreamError:
+            errorString = "RemoteStreamError";
+            break;
+        case BOSHError::SeeOtherURI:
+            errorString = "SeeOtherURI";
+            break;
+        case BOSHError::SystemShutdown:
+            errorString = "SystemShutdown";
+            break;
+        case BOSHError::UndefinedCondition:
+            errorString = "UndefinedCondition";
+            break;
+        case BOSHError::NoError:
+            errorString = "NoError";
+            break;
+    }
+
+    stream << "BOSHError( " << errorString << " )";
+    return stream;
+}
+
+};
+
+::std::ostream& operator<<(::std::ostream& os, const boost::optional<std::string>& optStr) {
+    if (optStr.is_initialized()) {
+        return os << "boost::optional<std::string>(\"" << optStr.get() << "\")";
+    }
+    else {
+        return os << "boost::optional<std::string>()";
+    }
+}
+
diff --git a/Swiften/Base/LogSerializers.h b/Swiften/Base/LogSerializers.h
new file mode 100644
index 0000000..7f73686
--- /dev/null
+++ b/Swiften/Base/LogSerializers.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2016-2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#pragma once
+
+#include <map>
+#include <memory>
+#include <ostream>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include <boost/optional.hpp>
+
+namespace Swift {
+
+class Presence;
+class BOSHError;
+
+template <typename T>
+std::ostream& operator<<(std::ostream& stream, const std::shared_ptr<T>& ptr) {
+    if (ptr) {
+        stream << *ptr;
+    }
+    else {
+        stream << "nullptr";
+    }
+    return stream;
+}
+
+template <typename T>
+std::ostream& operator<<(std::ostream& stream, const std::vector<T>& vec) {
+    stream << "[";
+    if (!vec.empty()) {
+        auto it = std::begin(vec);
+        stream << *it;
+
+        ++it;
+        for (auto end = std::end(vec); it != end; ++it) {
+            stream << ", " << *it;
+        }
+    }
+    stream << "]";
+    return stream;
+}
+
+template <typename KEY, typename VALUE>
+std::ostream& operator<<(std::ostream& stream, const std::pair<KEY, VALUE>& pair) {
+    stream << pair.first << ":" << pair.second;
+    return stream;
+}
+
+template <typename KEY, typename VALUE>
+std::ostream& operator<<(std::ostream& stream, const std::map<KEY, VALUE>& map) {
+    stream << "{";
+    if (!map.empty()) {
+        auto it = std::begin(map);
+        stream << *it;
+
+        ++it;
+        for (auto end = std::end(map); it != end; ++it) {
+            stream << ", " << *it;
+        }
+    }
+    stream << "}";
+    return stream;
+}
+
+std::ostream& operator<<(std::ostream& stream, const Presence& presence);
+
+std::ostream& operator<<(std::ostream& stream, const BOSHError& boshError);
+
+};
+
+::std::ostream& operator<<(::std::ostream& os, const boost::optional<std::string>& optStr);
+
diff --git a/Swiften/Base/Override.h b/Swiften/Base/Override.h
deleted file mode 100644
index 6d9baaa..0000000
--- a/Swiften/Base/Override.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (c) 2012 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
- */
-
-#pragma once
-
-#if defined(__clang__)
-# if __has_feature(cxx_override_control) || __has_extension(cxx_override_control)
-#  define SWIFTEN_OVERRIDE override
-# else
-#  define SWIFTEN_OVERRIDE
-# endif
-
-#elif defined(__GNUC__)
-# if ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7))) && defined(__GXX_EXPERIMENTAL_CXX0X__)
-#  define SWIFTEN_OVERRIDE override
-# else
-#  define SWIFTEN_OVERRIDE
-# endif
-
-#elif defined(_MSC_VER)
-// Actually, 1700 is the first version that supports the C++11 override, but
-// older versions apparently support a similar keyword.
-# if _MSC_VER >= 1400
-#  define SWIFTEN_OVERRIDE override
-# else
-#  define SWIFTEN_OVERRIDE
-# endif
-
-#else
-# define SWIFTEN_OVERRIDE
-#endif
diff --git a/Swiften/Base/Path.cpp b/Swiften/Base/Path.cpp
index 2a49676..ffee09b 100644
--- a/Swiften/Base/Path.cpp
+++ b/Swiften/Base/Path.cpp
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2013 Remko Tronçon
- * Licensed under the GNU General Public License.
+ * Copyright (c) 2013 Isode Limited.
+ * All rights reserved.
  * See the COPYING file for more information.
  */
 
@@ -13,16 +13,16 @@ using namespace Swift;
 
 boost::filesystem::path Swift::stringToPath(const std::string& path) {
 #ifdef SWIFTEN_PLATFORM_WINDOWS
-	return boost::filesystem::path(convertStringToWString(path));
+    return boost::filesystem::path(convertStringToWString(path));
 #else
-	return boost::filesystem::path(path);
+    return boost::filesystem::path(path);
 #endif
 }
 
 std::string Swift::pathToString(const boost::filesystem::path& path) {
 #ifdef SWIFTEN_PLATFORM_WINDOWS
-	return convertWStringToString(path.native());
+    return convertWStringToString(path.native());
 #else
-	return path.native();
+    return path.native();
 #endif
 }
diff --git a/Swiften/Base/Path.h b/Swiften/Base/Path.h
index ea99be9..40141b5 100644
--- a/Swiften/Base/Path.h
+++ b/Swiften/Base/Path.h
@@ -1,27 +1,29 @@
 /*
- * Copyright (c) 2013 Remko Tronçon
- * Licensed under the GNU General Public License.
+ * Copyright (c) 2013-2016 Isode Limited.
+ * All rights reserved.
  * See the COPYING file for more information.
  */
 
 #pragma once
 
-#include <Swiften/Base/API.h>
-#include <boost/filesystem/path.hpp>
 #include <string>
 
+#include <boost/filesystem/path.hpp>
+
+#include <Swiften/Base/API.h>
+
 namespace Swift {
-	/**
-	 * Creates a path for the given UTF-8 encoded string.
-	 * This works independently of global locale settings.
-	 */
-	SWIFTEN_API boost::filesystem::path stringToPath(const std::string&);
-
-	/**
-	 * Returns the UTF-8 representation of the given path
-	 * This works independently of global locale settings.
-	 */
-	SWIFTEN_API std::string pathToString(const boost::filesystem::path&);
+    /**
+     * Creates a path for the given UTF-8 encoded string.
+     * This works independently of global locale settings.
+     */
+    SWIFTEN_API boost::filesystem::path stringToPath(const std::string&);
+
+    /**
+     * Returns the UTF-8 representation of the given path
+     * This works independently of global locale settings.
+     */
+    SWIFTEN_API std::string pathToString(const boost::filesystem::path&);
 }
 
 
diff --git a/Swiften/Base/Paths.cpp b/Swiften/Base/Paths.cpp
index 8ad1159..cbb16f3 100644
--- a/Swiften/Base/Paths.cpp
+++ b/Swiften/Base/Paths.cpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/Paths.h>
@@ -21,28 +21,28 @@ namespace Swift {
 
 boost::filesystem::path Paths::getExecutablePath() {
 #if defined(SWIFTEN_PLATFORM_MACOSX)
-	ByteArray path;
-	uint32_t size = 4096;
-	path.resize(size);
-	if (_NSGetExecutablePath(const_cast<char*>(reinterpret_cast<const char*>(vecptr(path))), &size) == 0) {
-		return boost::filesystem::path(std::string(reinterpret_cast<const char*>(vecptr(path)), path.size()).c_str()).parent_path();
-	}
+    ByteArray path;
+    uint32_t size = 4096;
+    path.resize(size);
+    if (_NSGetExecutablePath(const_cast<char*>(reinterpret_cast<const char*>(vecptr(path))), &size) == 0) {
+        return boost::filesystem::path(std::string(reinterpret_cast<const char*>(vecptr(path)), path.size()).c_str()).parent_path();
+    }
 #elif defined(SWIFTEN_PLATFORM_LINUX)
-	ByteArray path;
-	path.resize(4096);
-	size_t size = static_cast<size_t>(readlink("/proc/self/exe", reinterpret_cast<char*>(vecptr(path)), path.size()));
-	if (size > 0) {
-		path.resize(size);
-		return boost::filesystem::path(std::string(reinterpret_cast<const char*>(vecptr(path)), path.size()).c_str()).parent_path();
-	}
+    ByteArray path;
+    path.resize(4096);
+    size_t size = static_cast<size_t>(readlink("/proc/self/exe", reinterpret_cast<char*>(vecptr(path)), path.size()));
+    if (size > 0) {
+        path.resize(size);
+        return boost::filesystem::path(std::string(reinterpret_cast<const char*>(vecptr(path)), path.size()).c_str()).parent_path();
+    }
 #elif defined(SWIFTEN_PLATFORM_WINDOWS)
-	std::vector<wchar_t> data;
-	data.resize(2048);
-	GetModuleFileNameW(NULL, vecptr(data), data.size());
-	return boost::filesystem::path(
-			std::wstring(vecptr(data), data.size())).parent_path();
+    std::vector<wchar_t> data;
+    data.resize(2048);
+    GetModuleFileNameW(NULL, vecptr(data), data.size());
+    return boost::filesystem::path(
+            std::wstring(vecptr(data), data.size())).parent_path();
 #endif
-	return boost::filesystem::path();
+    return boost::filesystem::path();
 }
 
 }
diff --git a/Swiften/Base/Paths.h b/Swiften/Base/Paths.h
index 94e62d1..71b55fb 100644
--- a/Swiften/Base/Paths.h
+++ b/Swiften/Base/Paths.h
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
@@ -11,8 +11,8 @@
 #include <Swiften/Base/API.h>
 
 namespace Swift {
-	class SWIFTEN_API Paths {
-		public:
-			static boost::filesystem::path getExecutablePath();
-	};
+    class SWIFTEN_API Paths {
+        public:
+            static boost::filesystem::path getExecutablePath();
+    };
 }
diff --git a/Swiften/Base/Platform.h b/Swiften/Base/Platform.h
index a22f556..22dff30 100644
--- a/Swiften/Base/Platform.h
+++ b/Swiften/Base/Platform.h
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2019 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
@@ -43,9 +43,9 @@
 #endif
 
 // Endianness
-#include <boost/detail/endian.hpp>
-#if defined(BOOST_LITTLE_ENDIAN)
+#include <boost/predef/other/endian.h>
+#if defined(BOOST_ENDIAN_LITTLE_BYTE)
 #define SWIFTEN_LITTLE_ENDIAN
-#elif defined(BOOST_BIG_ENDIAN)
+#elif defined(BOOST_ENDIAN_BIG_BYTE)
 #define SWIFTEN_BIG_ENDIAN
 #endif
diff --git a/Swiften/Base/RandomGenerator.cpp b/Swiften/Base/RandomGenerator.cpp
index f2dcca3..e43c01a 100644
--- a/Swiften/Base/RandomGenerator.cpp
+++ b/Swiften/Base/RandomGenerator.cpp
@@ -1,15 +1,13 @@
 /*
- * Copyright (c) 2012 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2012 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/RandomGenerator.h>
 
 namespace Swift {
 
-RandomGenerator::~RandomGenerator() {
-
-}
+RandomGenerator::~RandomGenerator() = default;
 
 }
diff --git a/Swiften/Base/RandomGenerator.h b/Swiften/Base/RandomGenerator.h
index eb5b84d..06677ec 100644
--- a/Swiften/Base/RandomGenerator.h
+++ b/Swiften/Base/RandomGenerator.h
@@ -1,23 +1,24 @@
 /*
- * Copyright (c) 2012 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2012-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
-#include <Swiften/Base/API.h>
 #include <vector>
 
+#include <Swiften/Base/API.h>
+
 namespace Swift {
-	class SWIFTEN_API RandomGenerator {
-		public:
-			virtual ~RandomGenerator();
+    class SWIFTEN_API RandomGenerator {
+        public:
+            virtual ~RandomGenerator();
 
-			/**
-			 * Generates a random integer between 0 and 'max',
-			 * 'max' inclusive.
-			 */
-			virtual int generateRandomInteger(int max) = 0;
-	};
+            /**
+             * Generates a random integer between 0 and 'max',
+             * 'max' inclusive.
+             */
+            virtual int generateRandomInteger(int max) = 0;
+    };
 }
diff --git a/Swiften/Base/Regex.cpp b/Swiften/Base/Regex.cpp
index 5e3d89a..7843833 100644
--- a/Swiften/Base/Regex.cpp
+++ b/Swiften/Base/Regex.cpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2013 Kevin Smith
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2013 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 /*
@@ -18,20 +18,20 @@
 
 namespace Swift {
 
-	namespace Regex {
-			std::string escape(const std::string& source) {
-				// escape regex special characters: ^.$| etc
-				// these need to be escaped: [\^\$\|.........]
-				// and then C++ requires '\' to be escaped, too....
-				static const boost::regex esc("([\\^\\.\\$\\|\\(\\)\\[\\]\\*\\+\\?\\/\\{\\}\\\\])");
-				// matched character should be prepended with '\'
-				// replace matched special character with \\\1
-				// and escape once more for C++ rules...
-				static const std::string rep("\\\\\\1");
-				return boost::regex_replace(source, esc, rep);
-			}
-
-	}
+    namespace Regex {
+            std::string escape(const std::string& source) {
+                // escape regex special characters: ^.$| etc
+                // these need to be escaped: [\^\$\|.........]
+                // and then C++ requires '\' to be escaped, too....
+                static const boost::regex esc("([\\^\\.\\$\\|\\(\\)\\[\\]\\*\\+\\?\\/\\{\\}\\\\])");
+                // matched character should be prepended with '\'
+                // replace matched special character with \\\1
+                // and escape once more for C++ rules...
+                static const std::string rep("\\\\\\1");
+                return boost::regex_replace(source, esc, rep);
+            }
+
+    }
 
 }
- 
+
diff --git a/Swiften/Base/Regex.h b/Swiften/Base/Regex.h
index 6d12a60..7d352c0 100644
--- a/Swiften/Base/Regex.h
+++ b/Swiften/Base/Regex.h
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2013 Kevin Smith
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2013 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
@@ -12,8 +12,8 @@
 
 namespace Swift {
 
-	namespace Regex {
-		SWIFTEN_API std::string escape(const std::string& source);
-	}
+    namespace Regex {
+        SWIFTEN_API std::string escape(const std::string& source);
+    }
 
 }
diff --git a/Swiften/Base/SConscript b/Swiften/Base/SConscript
index 094059a..1f48f19 100644
--- a/Swiften/Base/SConscript
+++ b/Swiften/Base/SConscript
@@ -1,21 +1,23 @@
 Import("swiften_env")
 
 objects = swiften_env.SwiftenObject([
-			"ByteArray.cpp",
-			"DateTime.cpp",
-			"SafeByteArray.cpp",
-			"SafeAllocator.cpp",
-			"Error.cpp",
-			"Log.cpp",
-			"Path.cpp",
-			"Paths.cpp",
-			"String.cpp",
-			"IDGenerator.cpp",
-			"SimpleIDGenerator.cpp",
-			"RandomGenerator.cpp",
-			"BoostRandomGenerator.cpp",
-			"sleep.cpp",
-			"URL.cpp",
-			"Regex.cpp"
-		])
+            "ByteArray.cpp",
+            "DateTime.cpp",
+            "Error.cpp",
+            "FileSize.cpp",
+            "IDGenerator.cpp",
+            "Log.cpp",
+            "LogSerializers.cpp",
+            "Path.cpp",
+            "Paths.cpp",
+            "RandomGenerator.cpp",
+            "Regex.cpp",
+            "SafeAllocator.cpp",
+            "SafeByteArray.cpp",
+            "SimpleIDGenerator.cpp",
+            "StdRandomGenerator.cpp",
+            "String.cpp",
+            "URL.cpp",
+            "sleep.cpp",
+        ])
 swiften_env.Append(SWIFTEN_OBJECTS = [objects])
diff --git a/Swiften/Base/SafeAllocator.cpp b/Swiften/Base/SafeAllocator.cpp
index d61d8b9..df51e20 100644
--- a/Swiften/Base/SafeAllocator.cpp
+++ b/Swiften/Base/SafeAllocator.cpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2013 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2013 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/SafeByteArray.h>
@@ -13,14 +13,14 @@
 
 namespace Swift {
 
-void secureZeroMemory(char* memory, size_t numberOfBytes) {
+SWIFTEN_API void secureZeroMemory(char* memory, size_t numberOfBytes) {
 #ifdef SWIFTEN_PLATFORM_WINDOWS
-	SecureZeroMemory(memory, numberOfBytes);
+    SecureZeroMemory(memory, numberOfBytes);
 #else
-	volatile char* p = memory;
-	for (size_t i = 0; i < numberOfBytes; ++i) {
-		*(p++) = 0;
-	}
+    volatile char* p = memory;
+    for (size_t i = 0; i < numberOfBytes; ++i) {
+        *(p++) = 0;
+    }
 #endif
 }
 
diff --git a/Swiften/Base/SafeAllocator.h b/Swiften/Base/SafeAllocator.h
index b01d77d..d47bb02 100644
--- a/Swiften/Base/SafeAllocator.h
+++ b/Swiften/Base/SafeAllocator.h
@@ -1,34 +1,36 @@
 /*
- * Copyright (c) 2011-2013 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2011-2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
-#include <vector>
 #include <algorithm>
+#include <vector>
+
+#include <Swiften/Base/API.h>
 
 namespace Swift {
-	void secureZeroMemory(char* memory, size_t numberOfBytes);
-
-	template<typename T>
-	class SafeAllocator : public std::allocator<T> {
-		public:
-			template <class U> struct rebind {
-				typedef SafeAllocator<U> other;
-			};
-
-			SafeAllocator() throw() {}
-			SafeAllocator(const SafeAllocator&) throw() : std::allocator<T>() {}
-			template <class U> SafeAllocator(const SafeAllocator<U>&) throw() {}
-			~SafeAllocator() throw() {}
-
-			void deallocate (T* p, size_t num) {
-				secureZeroMemory(reinterpret_cast<char*>(p), num);
-				std::allocator<T>::deallocate(p, num);
-			}
-
-		private:
-	};
+    SWIFTEN_API void secureZeroMemory(char* memory, size_t numberOfBytes);
+
+    template<typename T>
+    class SWIFTEN_API SafeAllocator : public std::allocator<T> {
+        public:
+            template <class U> struct rebind {
+                typedef SafeAllocator<U> other;
+            };
+
+            SafeAllocator() SWIFTEN_NOEXCEPT {}
+            SafeAllocator(const SafeAllocator&) SWIFTEN_NOEXCEPT : std::allocator<T>() {}
+            template <class U> SafeAllocator(const SafeAllocator<U>&) SWIFTEN_NOEXCEPT {}
+            ~SafeAllocator() SWIFTEN_NOEXCEPT {}
+
+            void deallocate (T* p, size_t num) {
+                secureZeroMemory(reinterpret_cast<char*>(p), num);
+                std::allocator<T>::deallocate(p, num);
+            }
+
+            SWIFTEN_DEFAULT_COPY_ASSIGMNENT_OPERATOR(SafeAllocator)
+    };
 }
diff --git a/Swiften/Base/SafeByteArray.cpp b/Swiften/Base/SafeByteArray.cpp
index 848b6d8..dd3736e 100644
--- a/Swiften/Base/SafeByteArray.cpp
+++ b/Swiften/Base/SafeByteArray.cpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2011 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2011 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/SafeByteArray.h>
@@ -11,12 +11,12 @@ using namespace Swift;
 namespace Swift {
 
 SafeByteArray createSafeByteArray(const char* c) {
-	SafeByteArray data;
-	while (*c) {
-		data.push_back(static_cast<unsigned char>(*c));
-		++c;
-	}
-	return data;
+    SafeByteArray data;
+    while (*c) {
+        data.push_back(static_cast<unsigned char>(*c));
+        ++c;
+    }
+    return data;
 }
 
 }
diff --git a/Swiften/Base/SafeByteArray.h b/Swiften/Base/SafeByteArray.h
index b85373c..342c185 100644
--- a/Swiften/Base/SafeByteArray.h
+++ b/Swiften/Base/SafeByteArray.h
@@ -1,59 +1,59 @@
 /*
- * Copyright (c) 2011-2013 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2011-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
+#include <memory>
 #include <vector>
 
 #include <Swiften/Base/API.h>
-#include <Swiften/Base/SafeAllocator.h>
 #include <Swiften/Base/ByteArray.h>
-#include <boost/smart_ptr/make_shared.hpp>
+#include <Swiften/Base/SafeAllocator.h>
 
 namespace Swift {
-	typedef std::vector<unsigned char, SafeAllocator<unsigned char> > SafeByteArray;
+    typedef std::vector<unsigned char, SafeAllocator<unsigned char> > SafeByteArray;
 
-	inline SafeByteArray createSafeByteArray(const ByteArray& a) {
-		return SafeByteArray(a.begin(), a.end());
-	}
+    inline SafeByteArray createSafeByteArray(const ByteArray& a) {
+        return SafeByteArray(a.begin(), a.end());
+    }
 
-	SWIFTEN_API SafeByteArray createSafeByteArray(const char* c);
+    SWIFTEN_API SafeByteArray createSafeByteArray(const char* c);
 
-	inline SafeByteArray createSafeByteArray(const std::string& s) {
-		return SafeByteArray(s.begin(), s.end());
-	}
+    inline SafeByteArray createSafeByteArray(const std::string& s) {
+        return SafeByteArray(s.begin(), s.end());
+    }
 
-	inline boost::shared_ptr<SafeByteArray> createSafeByteArrayRef(const std::string& s) {
-		return boost::make_shared<SafeByteArray>(s.begin(), s.end());
-	}
+    inline std::shared_ptr<SafeByteArray> createSafeByteArrayRef(const std::string& s) {
+        return std::make_shared<SafeByteArray>(s.begin(), s.end());
+    }
 
-	inline SafeByteArray createSafeByteArray(char c) {
-		return SafeByteArray(1, static_cast<unsigned char>(c));
-	}
+    inline SafeByteArray createSafeByteArray(char c) {
+        return SafeByteArray(1, static_cast<unsigned char>(c));
+    }
 
-	inline SafeByteArray createSafeByteArray(const char* c, size_t n) {
-		return SafeByteArray(c, c + n);
-	}
+    inline SafeByteArray createSafeByteArray(const char* c, size_t n) {
+        return SafeByteArray(c, c + n);
+    }
 
-	inline boost::shared_ptr<SafeByteArray> createSafeByteArrayRef(const char* c, size_t n) {
-		return boost::make_shared<SafeByteArray>(c, c + n);
-	}
+    inline std::shared_ptr<SafeByteArray> createSafeByteArrayRef(const char* c, size_t n) {
+        return std::make_shared<SafeByteArray>(c, c + n);
+    }
 
-	inline SafeByteArray createSafeByteArray(const unsigned char* c, size_t n) {
-		return SafeByteArray(c, c + n);
-	}
+    inline SafeByteArray createSafeByteArray(const unsigned char* c, size_t n) {
+        return SafeByteArray(c, c + n);
+    }
 
-	inline boost::shared_ptr<SafeByteArray> createSafeByteArrayRef(const unsigned char* c, size_t n) {
-		return boost::make_shared<SafeByteArray>(c, c + n);
-	}
+    inline std::shared_ptr<SafeByteArray> createSafeByteArrayRef(const unsigned char* c, size_t n) {
+        return std::make_shared<SafeByteArray>(c, c + n);
+    }
 
-	/* WARNING! This breaks the safety of the data in the safe byte array.
-	 * Do not use in modes that require data safety. */
-	inline std::string safeByteArrayToString(const SafeByteArray& b) {
-		return byteArrayToString(ByteArray(b.begin(), b.end()));
-	}
+    /* WARNING! This breaks the safety of the data in the safe byte array.
+     * Do not use in modes that require data safety. */
+    inline std::string safeByteArrayToString(const SafeByteArray& b) {
+        return byteArrayToString(ByteArray(b.begin(), b.end()));
+    }
 }
 
diff --git a/Swiften/Base/SafeString.h b/Swiften/Base/SafeString.h
index ef9c7cc..5e54537 100644
--- a/Swiften/Base/SafeString.h
+++ b/Swiften/Base/SafeString.h
@@ -1,32 +1,33 @@
 /*
- * Copyright (c) 2011 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2011-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
+#include <Swiften/Base/API.h>
 #include <Swiften/Base/SafeByteArray.h>
 
 namespace Swift {
-	class SafeString {
-		public:
-			SafeString(const SafeByteArray& data) : data(data) {
-			}
+    class SWIFTEN_API SafeString {
+        public:
+            SafeString(const SafeByteArray& data) : data(data) {
+            }
 
-			SafeString(const std::string& s) {
-				data = createSafeByteArray(s);
-			}
+            SafeString(const std::string& s) {
+                data = createSafeByteArray(s);
+            }
 
-			SafeString(const char* s) {
-				data = createSafeByteArray(s);
-			}
+            SafeString(const char* s) {
+                data = createSafeByteArray(s);
+            }
 
-			operator SafeByteArray () const {
-				return data;
-			}
+            operator SafeByteArray () const {
+                return data;
+            }
 
-		private:
-			SafeByteArray data;
-	};
+        private:
+            SafeByteArray data;
+    };
 }
diff --git a/Swiften/Base/SimpleIDGenerator.cpp b/Swiften/Base/SimpleIDGenerator.cpp
index 06cccea..e6d72b3 100644
--- a/Swiften/Base/SimpleIDGenerator.cpp
+++ b/Swiften/Base/SimpleIDGenerator.cpp
@@ -1,34 +1,37 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
-#include "Swiften/Base/SimpleIDGenerator.h"
+#include <Swiften/Base/SimpleIDGenerator.h>
 
 namespace Swift {
 
 SimpleIDGenerator::SimpleIDGenerator() {
 }
 
+SimpleIDGenerator::~SimpleIDGenerator() {
+}
+
 std::string SimpleIDGenerator::generateID() {
-	bool carry = true;
-	size_t i = 0;
-	while (carry && i < currentID.size()) {
-		char c = currentID[i];
-		if (c >= 'z') {
-			currentID[i] = 'a';
-		}
-		else {
-			currentID[i] = c+1;
-			carry = false;
-		}
-		++i;
-	}
-	if (carry) {
-		currentID += 'a';
-	}
-	return currentID;
+    bool carry = true;
+    size_t i = 0;
+    while (carry && i < currentID.size()) {
+        char c = currentID[i];
+        if (c >= 'z') {
+            currentID[i] = 'a';
+        }
+        else {
+            currentID[i] = c+1;
+            carry = false;
+        }
+        ++i;
+    }
+    if (carry) {
+        currentID += 'a';
+    }
+    return currentID;
 }
 
 }
diff --git a/Swiften/Base/SimpleIDGenerator.h b/Swiften/Base/SimpleIDGenerator.h
index fee857d..09e01de 100644
--- a/Swiften/Base/SimpleIDGenerator.h
+++ b/Swiften/Base/SimpleIDGenerator.h
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
@@ -9,15 +9,23 @@
 #include <string>
 
 #include <Swiften/Base/API.h>
+#include <Swiften/Base/IDGenerator.h>
 
 namespace Swift {
-	class SWIFTEN_API SimpleIDGenerator {
-		public:
-			SimpleIDGenerator();
 
-			std::string generateID();
+    /**
+     * @brief The SimpleIDGenerator class implements a IDGenerator generating consecutive ID strings from
+     * the lower case latin alphabet.
+     */
 
-		private:
-			std::string currentID;
-	};
+    class SWIFTEN_API SimpleIDGenerator : public IDGenerator {
+        public:
+            SimpleIDGenerator();
+            ~SimpleIDGenerator() override;
+
+            std::string generateID() override;
+
+        private:
+            std::string currentID;
+    };
 }
diff --git a/Swiften/Base/StartStopper.h b/Swiften/Base/StartStopper.h
index 7ea6049..af1a72d 100644
--- a/Swiften/Base/StartStopper.h
+++ b/Swiften/Base/StartStopper.h
@@ -1,23 +1,23 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
 namespace Swift {
-	template<typename T> class StartStopper {
-		public:
-			StartStopper(T* target) : target(target) {
-				target->start();
-			}
+    template<typename T> class StartStopper {
+        public:
+            StartStopper(T* target) : target(target) {
+                target->start();
+            }
 
-			~StartStopper() {
-				target->stop();
-			}
-		
-		private:
-			T* target;
-	};
+            ~StartStopper() {
+                target->stop();
+            }
+
+        private:
+            T* target;
+    };
 }
diff --git a/Swiften/Base/StdRandomGenerator.cpp b/Swiften/Base/StdRandomGenerator.cpp
new file mode 100644
index 0000000..8b1dee0
--- /dev/null
+++ b/Swiften/Base/StdRandomGenerator.cpp
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2012-2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#include <Swiften/Base/StdRandomGenerator.h>
+
+#include <algorithm>
+#include <functional>
+
+namespace {
+    template<class T = std::mt19937, std::size_t N = T::state_size>
+    typename std::enable_if<!!N, T>::type createSeededRandomEngine() {
+        typename T::result_type random_data[N];
+        std::random_device source;
+        std::generate(std::begin(random_data), std::end(random_data), std::ref(source));
+        std::seed_seq seeds(std::begin(random_data), std::end(random_data));
+        return T(seeds);
+    }
+}
+
+namespace Swift {
+
+StdRandomGenerator::StdRandomGenerator() : generator(createSeededRandomEngine()) {
+}
+
+int StdRandomGenerator::generateRandomInteger(int maximum) {
+    std::uniform_int_distribution<> distribution(0, maximum);
+    return distribution(generator);
+}
+
+}
diff --git a/Swiften/Base/StdRandomGenerator.h b/Swiften/Base/StdRandomGenerator.h
new file mode 100644
index 0000000..159d361
--- /dev/null
+++ b/Swiften/Base/StdRandomGenerator.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2012-2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#pragma once
+
+#include <random>
+
+#include <Swiften/Base/API.h>
+#include <Swiften/Base/RandomGenerator.h>
+
+namespace Swift {
+    class SWIFTEN_API StdRandomGenerator : public RandomGenerator {
+        public:
+            StdRandomGenerator();
+
+            int generateRandomInteger(int max) override;
+
+        private:
+            std::mt19937 generator;
+    };
+}
diff --git a/Swiften/Base/String.cpp b/Swiften/Base/String.cpp
index 40ea2e1..bbc3003 100644
--- a/Swiften/Base/String.cpp
+++ b/Swiften/Base/String.cpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010-2013 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/Platform.h>
@@ -17,136 +17,232 @@
 #include <Swiften/Base/String.h>
 #include <Swiften/Base/ByteArray.h>
 
+namespace {
+const static std::uint32_t UTF8_ACCEPT = 0;
+
+const static std::uint8_t UTF8D[] = {
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 00..1f
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 20..3f
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 40..5f
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 60..7f
+    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, // 80..9f
+    7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, // a0..bf
+    8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, // c0..df
+    0xa,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x3,0x3, // e0..ef
+    0xb,0x6,0x6,0x6,0x5,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8, // f0..ff
+    0x0,0x1,0x2,0x3,0x5,0x8,0x7,0x1,0x1,0x1,0x4,0x6,0x1,0x1,0x1,0x1, // s0..s0
+    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,0,1,0,1,1,1,1,1,1, // s1..s2
+    1,2,1,1,1,1,1,2,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1, // s3..s4
+    1,2,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,3,1,3,1,1,1,1,1,1, // s5..s6
+    1,3,1,1,1,1,1,3,1,3,1,1,1,1,1,1,1,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1, // s7..s8
+};
+
+//http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
+std::uint32_t decode(std::uint32_t & state, std::uint32_t & codepoint, std::uint8_t byte) {
+    const auto type = UTF8D[byte];
+    codepoint = (state != UTF8_ACCEPT) ? (byte & 0x3fu) | (codepoint << 6) : (0xff >> type) & (byte);
+    state = UTF8D[256 + state * 16 + type];
+    return state;
+}
+
+std::uint32_t getNextCodepoint(const char * begin, const char * end, std::size_t & consumed, bool & ok) {
+    consumed = 0;
+    ok = true;
+
+    std::uint32_t state = 0;
+    std::uint32_t codepoint = 0;
+
+    for (auto it = begin; it != end; ++it) {
+        ++consumed;
+        if (!decode(state, codepoint, static_cast<std::uint8_t>(*it)))
+            return codepoint;
+    }
+    if (state != UTF8_ACCEPT) {
+        ok = false;
+    }
+    return codepoint;
+}
+
+}
+
 namespace Swift {
 
 static inline size_t sequenceLength(char firstByte) {
-	if ((firstByte & 0x80) == 0) {
-		return 1;
-	}
-	if ((firstByte & 0xE0) == 0xC0) {
-		return 2;
-	}
-	if ((firstByte & 0xF0) == 0xE0) {
-		return 3;
-	}
-	if ((firstByte & 0xF8) == 0xF0) {
-		return 4;
-	}
-	if ((firstByte & 0xFC) == 0xF8) {
-		return 5;
-	}
-	if ((firstByte & 0xFE) == 0xFC) {
-		return 6;
-	}
-	assert(false);
-	return 1;
+    if ((firstByte & 0x80) == 0) {
+        return 1;
+    }
+    if ((firstByte & 0xE0) == 0xC0) {
+        return 2;
+    }
+    if ((firstByte & 0xF0) == 0xE0) {
+        return 3;
+    }
+    if ((firstByte & 0xF8) == 0xF0) {
+        return 4;
+    }
+    if ((firstByte & 0xFC) == 0xF8) {
+        return 5;
+    }
+    if ((firstByte & 0xFE) == 0xFC) {
+        return 6;
+    }
+    assert(false);
+    return 1;
 }
 
 std::vector<unsigned int> String::getUnicodeCodePoints(const std::string& s) {
-	std::vector<unsigned int> result;
-	for (size_t i = 0; i < s.size();) {
-		unsigned int codePoint = 0;
-		char firstChar = s[i];
-		size_t length = sequenceLength(firstChar);
-
-		// First character is special
-		size_t firstCharBitSize = 7 - length;
-		if (length == 1) {
-			firstCharBitSize = 7;
-		}
-		codePoint = firstChar & ((1<<(firstCharBitSize+1)) - 1);
-
-		for (size_t j = 1; j < length; ++j) {
-			codePoint = (codePoint<<6) | (s[i+j] & 0x3F);
-		}
-		result.push_back(codePoint);
-		i += length;
-	}
-	return result;
+    std::vector<unsigned int> result;
+    for (size_t i = 0; i < s.size();) {
+        unsigned int codePoint = 0;
+        char firstChar = s[i];
+        size_t length = sequenceLength(firstChar);
+
+        // First character is special
+        size_t firstCharBitSize = 7 - length;
+        if (length == 1) {
+            firstCharBitSize = 7;
+        }
+        codePoint = firstChar & ((1<<(firstCharBitSize+1)) - 1);
+
+        for (size_t j = 1; j < length; ++j) {
+            codePoint = (codePoint<<6) | (s[i+j] & 0x3F);
+        }
+        result.push_back(codePoint);
+        i += length;
+    }
+    return result;
 }
 
 
 std::pair<std::string,std::string> String::getSplittedAtFirst(const std::string& s, char c) {
-	assert((c & 0x80) == 0);
-	size_t firstMatch = s.find(c);
-	if (firstMatch != s.npos) {
-		return std::make_pair(s.substr(0,firstMatch),s.substr(firstMatch+1,s.npos));
-	}
-	else {
-		return std::make_pair(s, "");
-	}
+    assert((c & 0x80) == 0);
+    size_t firstMatch = s.find(c);
+    if (firstMatch != s.npos) {
+        return std::make_pair(s.substr(0,firstMatch),s.substr(firstMatch+1,s.npos));
+    }
+    else {
+        return std::make_pair(s, "");
+    }
 }
 
 void String::replaceAll(std::string& src, char c, const std::string& s) {
-	size_t lastPos = 0;
-	size_t matchingIndex = 0;
-	while ((matchingIndex = src.find(c, lastPos)) != src.npos) {
-		src.replace(matchingIndex, 1, s);
-		lastPos = matchingIndex + s.size();
-	}
+    size_t lastPos = 0;
+    size_t matchingIndex = 0;
+    while ((matchingIndex = src.find(c, lastPos)) != src.npos) {
+        src.replace(matchingIndex, 1, s);
+        lastPos = matchingIndex + s.size();
+    }
+}
+
+bool String::isValidXMPPCharacter(std::uint32_t codepoint) {
+    // Special accepted characters:
+    if (codepoint == '\t' || codepoint == '\r' || codepoint == '\n')
+        return true;
+    // Discouraged characters:
+    if (codepoint >= 0x7Fu && codepoint <= 0x84u)
+        return false;
+    if (codepoint >= 0x86u && codepoint <= 0x9Fu)
+        return false;
+    if (codepoint >= 0xFDD0u && codepoint <= 0xFDEFu)
+        return false;
+    if (((codepoint & 0xFFFEu) == 0xFFEEu) || ((codepoint & 0xFFFFu) == 0xFFFFu))
+        return false;
+    // Other valid characters (after filtering for discouraged ones above)
+    if (codepoint >= 0x20u && codepoint <= 0xD7FFu)
+        return true;
+    if (codepoint >= 0xE000u && codepoint <= 0xFFFDu)
+        return true;
+    if (codepoint >= 0x10000u && codepoint <= 0x10FFFFu)
+        return true;
+    return false;
+}
+
+std::string String::sanitizeXMPPString(const std::string& input) {
+    std::string result;
+    result.reserve(input.length());
+
+    auto it = input.data();
+    const auto end = it + input.length();
+
+    std::size_t consumed;
+    bool status = UTF8_ACCEPT;
+
+    while (it < end) {
+        const auto codepoint = getNextCodepoint(it, end, consumed, status);
+        if (status) {
+            if (isValidXMPPCharacter(codepoint)) {
+                std::copy(it, it + consumed, std::back_inserter(result));
+            }
+            it += consumed;
+        }
+        else {
+            ++it;
+        }
+    }
+    result.shrink_to_fit();
+    return result;
 }
 
 std::vector<std::string> String::split(const std::string& s, char c) {
-	assert((c & 0x80) == 0);
-	std::vector<std::string> result;
-	std::string accumulator;
-	for (size_t i = 0; i < s.size(); ++i) {
-		if (s[i] == c) {
-			result.push_back(accumulator);
-			accumulator = "";
-		}
-		else {
-			accumulator += s[i];
-		}
-	}
-	result.push_back(accumulator);
-	return result;
+    assert((c & 0x80) == 0);
+    std::vector<std::string> result;
+    std::string accumulator;
+    for (char i : s) {
+        if (i == c) {
+            result.push_back(accumulator);
+            accumulator = "";
+        }
+        else {
+            accumulator += i;
+        }
+    }
+    result.push_back(accumulator);
+    return result;
 }
 
 std::string String::convertIntToHexString(int h) {
-	std::stringstream ss;
-	ss << std::setbase(16);
-	ss << h;
-	return ss.str();
+    std::stringstream ss;
+    ss << std::setbase(16);
+    ss << h;
+    return ss.str();
 }
 
 int String::convertHexStringToInt(const std::string& s) {
-	std::stringstream ss;
-	int h;
-	ss << std::setbase(16);
-	ss << s;
-	ss >> h;
-	return h;
+    std::stringstream ss;
+    int h;
+    ss << std::setbase(16);
+    ss << s;
+    ss >> h;
+    return h;
 }
 
-
 #ifdef SWIFTEN_PLATFORM_WINDOWS
 std::string convertWStringToString(const std::wstring& s) {
-	int utf8Size = WideCharToMultiByte(CP_UTF8, 0, s.c_str(), -1, NULL, 0, NULL, NULL);
-	if (utf8Size < 0) {
-		throw std::runtime_error("Conversion error");
-	}
-	std::vector<char> utf8Data(utf8Size);
-	int result = WideCharToMultiByte(
-			CP_UTF8, 0, s.c_str(), -1, vecptr(utf8Data), utf8Data.size(), NULL, NULL);
-	if (result < 0) {
-		throw std::runtime_error("Conversion error");
-	}
-	return std::string(vecptr(utf8Data), utf8Size-1 /* trailing 0 character */);
+    int utf8Size = WideCharToMultiByte(CP_UTF8, 0, s.c_str(), -1, NULL, 0, NULL, NULL);
+    if (utf8Size < 0) {
+        throw std::runtime_error("Conversion error");
+    }
+    std::vector<char> utf8Data(utf8Size);
+    int result = WideCharToMultiByte(
+            CP_UTF8, 0, s.c_str(), -1, vecptr(utf8Data), utf8Data.size(), NULL, NULL);
+    if (result < 0) {
+        throw std::runtime_error("Conversion error");
+    }
+    return std::string(vecptr(utf8Data), utf8Size-1 /* trailing 0 character */);
 }
 
 std::wstring convertStringToWString(const std::string& s) {
-	int utf16Size = MultiByteToWideChar(CP_UTF8, 0, s.c_str(), -1, NULL, 0);
-	if (utf16Size < 0) {
-		throw std::runtime_error("Conversion error");
-	}
-	std::vector<wchar_t> utf16Data(utf16Size);
-	int result = MultiByteToWideChar(
-			CP_UTF8, 0, s.c_str(), -1, vecptr(utf16Data), utf16Data.size());
-	if (result < 0) {
-		throw std::runtime_error("Conversion error");
-	}
-	return std::wstring(vecptr(utf16Data), utf16Size-1 /* trailing 0 character */);
+    int utf16Size = MultiByteToWideChar(CP_UTF8, 0, s.c_str(), -1, NULL, 0);
+    if (utf16Size < 0) {
+        throw std::runtime_error("Conversion error");
+    }
+    std::vector<wchar_t> utf16Data(utf16Size);
+    int result = MultiByteToWideChar(
+            CP_UTF8, 0, s.c_str(), -1, vecptr(utf16Data), utf16Data.size());
+    if (result < 0) {
+        throw std::runtime_error("Conversion error");
+    }
+    return std::wstring(vecptr(utf16Data), utf16Size-1 /* trailing 0 character */);
 }
 #endif
 
diff --git a/Swiften/Base/String.h b/Swiften/Base/String.h
index 5a5642e..3a7ca65 100644
--- a/Swiften/Base/String.h
+++ b/Swiften/Base/String.h
@@ -1,58 +1,60 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
+#include <cstdint>
+#include <sstream>
 #include <string>
 #include <vector>
-#include <sstream>
 
 #include <Swiften/Base/API.h>
 #include <Swiften/Base/Platform.h>
-
 #define SWIFTEN_STRING_TO_CFSTRING(a) \
-	CFStringCreateWithBytes(NULL, reinterpret_cast<const UInt8*>(a.c_str()), a.size(), kCFStringEncodingUTF8, false)
+    CFStringCreateWithBytes(NULL, reinterpret_cast<const UInt8*>(a.c_str()), a.size(), kCFStringEncodingUTF8, false)
 
 namespace Swift {
-	namespace String {
-			SWIFTEN_API std::vector<unsigned int> getUnicodeCodePoints(const std::string&);
-			SWIFTEN_API std::pair<std::string, std::string> getSplittedAtFirst(const std::string&, char c);
-			SWIFTEN_API std::vector<std::string> split(const std::string&, char c);
-			SWIFTEN_API void replaceAll(std::string&, char c, const std::string& s);
+    namespace String {
+            SWIFTEN_API std::vector<unsigned int> getUnicodeCodePoints(const std::string&);
+            SWIFTEN_API std::pair<std::string, std::string> getSplittedAtFirst(const std::string&, char c);
+            SWIFTEN_API std::vector<std::string> split(const std::string&, char c);
+            SWIFTEN_API void replaceAll(std::string&, char c, const std::string& s);
+            SWIFTEN_API bool isValidXMPPCharacter(std::uint32_t codepoint);
+            SWIFTEN_API std::string sanitizeXMPPString(const std::string& input);
 
-			inline bool beginsWith(const std::string& s, char c) { 
-				return s.size() > 0 && s[0] == c; 
-			}
+            inline bool beginsWith(const std::string& s, char c) {
+                return s.size() > 0 && s[0] == c;
+            }
 
-			inline bool endsWith(const std::string& s, char c) { 
-				return s.size() > 0 && s[s.size()-1] == c; 
-			}
+            inline bool endsWith(const std::string& s, char c) {
+                return s.size() > 0 && s[s.size()-1] == c;
+            }
 
-			std::string convertIntToHexString(int h);
-			int convertHexStringToInt(const std::string& s);
+            std::string convertIntToHexString(int h);
+            int convertHexStringToInt(const std::string& s);
 
-	}
+    }
 
 #ifdef SWIFTEN_PLATFORM_WINDOWS
-	SWIFTEN_API std::string convertWStringToString(const std::wstring& s);
-	SWIFTEN_API std::wstring convertStringToWString(const std::string& s);
+    SWIFTEN_API std::string convertWStringToString(const std::wstring& s);
+    SWIFTEN_API std::wstring convertStringToWString(const std::string& s);
 #endif
 
-	class SWIFTEN_API makeString {
-		public:
-			 template <typename T> makeString& operator<<(T const& v) {
-					stream << v;
-					return *this;
-			 }
+    class SWIFTEN_API makeString {
+        public:
+             template <typename T> makeString& operator<<(T const& v) {
+                    stream << v;
+                    return *this;
+             }
 
-			 operator std::string() const {
-					return stream.str();
-			 }
+             operator std::string() const {
+                    return stream.str();
+             }
 
-		private:
-			 std::ostringstream stream;
-	};
+        private:
+             std::ostringstream stream;
+    };
 }
diff --git a/Swiften/Base/Tristate.h b/Swiften/Base/Tristate.h
new file mode 100644
index 0000000..edb7444
--- /dev/null
+++ b/Swiften/Base/Tristate.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2015 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#pragma once
+
+namespace Swift {
+
+enum Tristate {Yes, No, Maybe};
+
+}
diff --git a/Swiften/Base/URL.cpp b/Swiften/Base/URL.cpp
index 866cd45..5c0f0d7 100644
--- a/Swiften/Base/URL.cpp
+++ b/Swiften/Base/URL.cpp
@@ -1,114 +1,141 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2018 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/URL.h>
 
+#include <algorithm>
 #include <iostream>
 
 namespace Swift {
 
-int URL::getPortOrDefaultPort(const URL& url) {
-	if (url.getPort()) {
-		return *url.getPort();
-	}
-	else if (url.getScheme() == "http") {
-		return 80;
-	}
-	else if (url.getScheme() == "https") {
-		return 443;
-	}
-	else {
-		std::cerr << "Unknown scheme: " + url.getScheme() << std::endl;
-		return 80;
-	}
+unsigned short URL::getPortOrDefaultPort(const URL& url) {
+    if (url.getPort()) {
+        return *url.getPort();
+    }
+    else if (url.getScheme() == "http") {
+        return 80;
+    }
+    else if (url.getScheme() == "https") {
+        return 443;
+    }
+    else {
+        std::cerr << "Unknown scheme: " + url.getScheme() << std::endl;
+        return 80;
+    }
 }
 
 URL URL::fromString(const std::string& urlString) {
-	size_t colonIndex = urlString.find(':');
-	if (colonIndex == std::string::npos) {
-		return URL();
-	}
-	std::string scheme = urlString.substr(0, colonIndex);
+    size_t colonIndex = urlString.find(':');
+    if (colonIndex == std::string::npos) {
+        return URL();
+    }
+    std::string scheme = urlString.substr(0, colonIndex);
 
-	// Authority
-	if (urlString.size() > colonIndex + 2 && urlString[colonIndex+1] == '/' && urlString[colonIndex+2] == '/') {
-		size_t authorityIndex = colonIndex + 3;
-		size_t slashIndex = urlString.find('/', authorityIndex);
-		std::string authority;
-		std::string path;
-		if (slashIndex == std::string::npos) {
-			authority = urlString.substr(authorityIndex);
-			path = "";
-		}
-		else {
-			authority = urlString.substr(authorityIndex, slashIndex - authorityIndex);
-			path = unescape(urlString.substr(slashIndex));
-		}
+    // Authority
+    if (urlString.size() > colonIndex + 2 && urlString[colonIndex+1] == '/' && urlString[colonIndex+2] == '/') {
+        size_t authorityIndex = colonIndex + 3;
+        size_t slashIndex = urlString.find('/', authorityIndex);
+        std::string authority;
+        std::string path;
+        if (slashIndex == std::string::npos) {
+            authority = urlString.substr(authorityIndex);
+            path = "";
+        }
+        else {
+            authority = urlString.substr(authorityIndex, slashIndex - authorityIndex);
+            path = unescape(urlString.substr(slashIndex));
+        }
 
-		size_t atIndex = authority.find('@');
-		std::string userInfo;
-		std::string hostAndPort;
-		if (atIndex != std::string::npos) {
-			userInfo = authority.substr(0, atIndex);
-			hostAndPort = authority.substr(atIndex + 1);
-		}
-		else {
-			userInfo = "";
-			hostAndPort = authority;
-		}
+        size_t atIndex = authority.find('@');
+        std::string userInfo;
+        std::string hostAndPort;
+        if (atIndex != std::string::npos) {
+            userInfo = authority.substr(0, atIndex);
+            hostAndPort = authority.substr(atIndex + 1);
+        }
+        else {
+            userInfo = "";
+            hostAndPort = authority;
+        }
 
-		std::string host;
-		boost::optional<int> port;
-		colonIndex = hostAndPort.find(':');
-		if (colonIndex != std::string::npos) {
-			host = unescape(hostAndPort.substr(0, colonIndex));
-			try {
-				port = boost::lexical_cast<int>(hostAndPort.substr(colonIndex + 1));
-			}
-			catch (const boost::bad_lexical_cast&) {
-				return URL();
-			}
-		}
-		else {
-			host = unescape(hostAndPort);
-		}
+        std::string host;
+        boost::optional<unsigned short> port;
+        if (hostAndPort[0] == '[') {
+            // handle IPv6 address literals
+            size_t addressEndIndex = hostAndPort.find(']');
+            if (addressEndIndex != std::string::npos) {
+                host = hostAndPort.substr(1, addressEndIndex - 1);
+                colonIndex = hostAndPort.find(':', addressEndIndex);
+                if (colonIndex != std::string::npos) {
+                    try {
+                        port = boost::numeric_cast<unsigned short>(boost::lexical_cast<int>(hostAndPort.substr(colonIndex + 1)));
+                    }
+                    catch (...) {
+                        return URL();
+                    }
+                }
+            }
+            else {
+                return URL();
+            }
+        }
+        else {
+            colonIndex = hostAndPort.find(':');
+            if (colonIndex != std::string::npos) {
+                host = unescape(hostAndPort.substr(0, colonIndex));
+                try {
+                    port = boost::numeric_cast<unsigned short>(boost::lexical_cast<int>(hostAndPort.substr(colonIndex + 1)));
+                }
+                catch (const boost::bad_lexical_cast&) {
+                    return URL();
+                }
+            }
+            else {
+                host = unescape(hostAndPort);
+            }
+        }
 
-		if (port) {
-			return URL(scheme, host, *port, path);
-		}
-		else {
-			return URL(scheme, host, path);
-		}
-	}
-	else {
-		// We don't support URLs without authorities yet
-		return URL();
-	}
+        if (port) {
+            return URL(scheme, host, *port, path);
+        }
+        else {
+            return URL(scheme, host, path);
+        }
+    }
+    else {
+        // We don't support URLs without authorities yet
+        return URL();
+    }
 }
 
 // FIXME: Escape non-ascii characters
 std::string URL::toString() const {
-	if (empty) {
-		return "";
-	}
-	std::string result = scheme + "://";
-	if (!user.empty()) {
-		result += user;
-		if (!password.empty()) {
-			result += ":" + password;
-		}
-		result += "@";
-	}
-	result += host;
-	if (port) {
-		result += ":";
-		result += boost::lexical_cast<std::string>(*port);
-	}
-	result += path;
-	return result;
+    if (empty) {
+        return "";
+    }
+    std::string result = scheme + "://";
+    if (!user.empty()) {
+        result += user;
+        if (!password.empty()) {
+            result += ":" + password;
+        }
+        result += "@";
+    }
+    if (host.find(':') != std::string::npos) {
+        result += "[" + host + "]";
+    }
+    else {
+        result += host;
+    }
+    if (port) {
+        result += ":";
+        result += std::to_string(*port);
+    }
+    result += path;
+    return result;
 }
 
 // Disabling this code for now, since GCC4.5+boost1.42 (on ubuntu) seems to
@@ -118,72 +145,72 @@ std::string URL::toString() const {
 struct PercentEncodedCharacterFinder {
 template<typename Iterator>
 boost::iterator_range<Iterator> operator()(Iterator begin, Iterator end) {
-	boost::iterator_range<Iterator> r = boost::first_finder("%")(begin, end);
-	if (r.end() == end) {
-		return r;
-	}
-	else {
-		if (r.end() + 1 == end || r.end() + 2 == end) {
-			throw std::runtime_error("Incomplete escape character");
-		}
-		else {
-			r.advance_end(2);
-			return r;
-		}
-	}
+    boost::iterator_range<Iterator> r = boost::first_finder("%")(begin, end);
+    if (r.end() == end) {
+        return r;
+    }
+    else {
+        if (r.end() + 1 == end || r.end() + 2 == end) {
+            throw std::runtime_error("Incomplete escape character");
+        }
+        else {
+            r.advance_end(2);
+            return r;
+        }
+    }
 }
 };
 
 struct PercentUnencodeFormatter {
 template<typename FindResult>
 std::string operator()(const FindResult& match) const {
-	std::stringstream s;
-	s << std::hex << std::string(match.begin() + 1, match.end());
-	unsigned int value;
-	s >> value;
-	if (s.fail() || s.bad()) {
-		throw std::runtime_error("Invalid escape character");
-	}
-	unsigned char charValue = static_cast<unsigned char>(value);
-	return std::string(reinterpret_cast<const char*>(&charValue), 1);
+    std::stringstream s;
+    s << std::hex << std::string(match.begin() + 1, match.end());
+    unsigned int value;
+    s >> value;
+    if (s.fail() || s.bad()) {
+        throw std::runtime_error("Invalid escape character");
+    }
+    unsigned char charValue = static_cast<unsigned char>(value);
+    return std::string(reinterpret_cast<const char*>(&charValue), 1);
 }
 };
 
 std::string unescape(const std::string& s) {
-	try {
-		return boost::find_format_all_copy(s, PercentEncodedCharacterFinder(), PercentUnencodeFormatter());
-	}
-	catch (const std::exception&) {
-		return "";
-	}
+    try {
+        return boost::find_format_all_copy(s, PercentEncodedCharacterFinder(), PercentUnencodeFormatter());
+    }
+    catch (const std::exception&) {
+        return "";
+    }
 }
 #endif
 
 std::string URL::unescape(const std::string& str) {
-	std::string result;
-	for (size_t i = 0; i < str.size(); ++i) {
-		if (str[i] == '%') {
-			if (i + 3 < str.size()) {
-				std::stringstream s;
-				s << std::hex << str.substr(i+1, 2);
-				unsigned int value;
-				s >> value;
-				if (s.fail() || s.bad()) {
-					return "";
-				}
-				unsigned char charValue = static_cast<unsigned char>(value);
-				result += std::string(reinterpret_cast<const char*>(&charValue), 1);
-				i += 2;
-			}
-			else {
-				return "";
-			}
-		}
-		else {
-			result += str[i];
-		}
-	}
-	return result;
+    std::string result;
+    for (size_t i = 0; i < str.size(); ++i) {
+        if (str[i] == '%') {
+            if (i + 3 < str.size()) {
+                std::stringstream s;
+                s << std::hex << str.substr(i+1, 2);
+                unsigned int value;
+                s >> value;
+                if (s.fail() || s.bad()) {
+                    return "";
+                }
+                unsigned char charValue = static_cast<unsigned char>(value);
+                result += std::string(reinterpret_cast<const char*>(&charValue), 1);
+                i += 2;
+            }
+            else {
+                return "";
+            }
+        }
+        else {
+            result += str[i];
+        }
+    }
+    return result;
 }
 
 }
diff --git a/Swiften/Base/URL.h b/Swiften/Base/URL.h
index 75cf1a6..8fdb018 100644
--- a/Swiften/Base/URL.h
+++ b/Swiften/Base/URL.h
@@ -1,79 +1,81 @@
 /*
- * Copyright (c) 2011 Kevin Smith
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2011-2018 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
 #include <string>
+
 #include <boost/lexical_cast.hpp>
 #include <boost/optional.hpp>
+
 #include <Swiften/Base/API.h>
 
 namespace Swift {
 
 class SWIFTEN_API URL {
-	public:
-
-		URL() : scheme(""), user(""), password(""), host(""), path(""), empty(true) {
-		}
-
-		URL(const std::string& scheme, const std::string& host, int port, const std::string& path) : scheme(scheme), user(), password(), host(host), port(port), path(path), empty(false) {
-		}	
-
-		URL(const std::string& scheme, const std::string& host, const std::string& path) : scheme(scheme), user(), password(), host(host), path(path), empty(false) {
-		}	
-
-		/**
-		 * Whether the URL is empty.
-		 */
-		bool isEmpty() const {
-			return empty;
-		}
-
-		/**
-		 * Scheme used for the URL (http, https etc.)
-		 */
-		const std::string& getScheme() const {
-			return scheme;
-		}
-
-		/**
-		 * Hostname
-		 */
-		const std::string& getHost() const {
-			return host;
-		}
-
-		/**
-		 * Port number
-		 */
-		boost::optional<int> getPort() const {
-			return port;
-		}
-
-		/**
-		 * Path 
-		 */
-		const std::string& getPath() const {
-			return path;
-		}
-
-		std::string toString() const;
-
-		static int getPortOrDefaultPort(const URL& url);
-		static URL fromString(const std::string&);
-		static std::string unescape(const std::string&);
-
-
-	private:
-		std::string scheme;
-		std::string user;
-		std::string password;
-		std::string host;
-		boost::optional<int> port;
-		std::string path;
-		bool empty;
-	};
+    public:
+
+        URL() : scheme(""), user(""), password(""), host(""), path(""), empty(true) {
+        }
+
+        URL(const std::string& scheme, const std::string& host, unsigned short port, const std::string& path) : scheme(scheme), user(), password(), host(host), port(port), path(path), empty(false) {
+        }
+
+        URL(const std::string& scheme, const std::string& host, const std::string& path) : scheme(scheme), user(), password(), host(host), path(path), empty(false) {
+        }
+
+        /**
+         * Whether the URL is empty.
+         */
+        bool isEmpty() const {
+            return empty;
+        }
+
+        /**
+         * Scheme used for the URL (http, https etc.)
+         */
+        const std::string& getScheme() const {
+            return scheme;
+        }
+
+        /**
+         * Hostname
+         */
+        const std::string& getHost() const {
+            return host;
+        }
+
+        /**
+         * Port number
+         */
+        boost::optional<unsigned short> getPort() const {
+            return port;
+        }
+
+        /**
+         * Path
+         */
+        const std::string& getPath() const {
+            return path;
+        }
+
+        std::string toString() const;
+
+        static unsigned short getPortOrDefaultPort(const URL& url);
+        static URL fromString(const std::string&);
+        static std::string unescape(const std::string&);
+
+
+    private:
+        std::string scheme;
+        std::string user;
+        std::string password;
+        std::string host;
+        boost::optional<unsigned short> port;
+        std::string path;
+        bool empty;
+    };
 }
diff --git a/Swiften/Base/UnitTest/ByteArrayTest.cpp b/Swiften/Base/UnitTest/ByteArrayTest.cpp
index ecd0439..f1732ae 100644
--- a/Swiften/Base/UnitTest/ByteArrayTest.cpp
+++ b/Swiften/Base/UnitTest/ByteArrayTest.cpp
@@ -1,56 +1,43 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
-#include <cppunit/extensions/HelperMacros.h>
-#include <cppunit/extensions/TestFactoryRegistry.h>
-
-#include <Swiften/Base/ByteArray.h>
 #include <boost/lexical_cast.hpp>
 
-using namespace Swift;
+#include <gtest/gtest.h>
 
-class ByteArrayTest : public CppUnit::TestFixture {
-		CPPUNIT_TEST_SUITE(ByteArrayTest);
-		CPPUNIT_TEST(testGetData_NoData);
-		CPPUNIT_TEST(testToString);
-		CPPUNIT_TEST(testToString_NullTerminated);
-		CPPUNIT_TEST(testToString_TwoNullTerminated);
-		CPPUNIT_TEST(testToString_AllNull);
-		CPPUNIT_TEST_SUITE_END();
+#include <Swiften/Base/ByteArray.h>
 
-	public:
-		void testGetData_NoData() {
-			ByteArray testling;
+using namespace Swift;
 
-			CPPUNIT_ASSERT_EQUAL(reinterpret_cast<const char*>(NULL), reinterpret_cast<const char*>(vecptr(testling)));
-		}
+TEST(ByteArrayTest, testGetData_NoData) {
+    ByteArray testling;
 
-		void testToString() {
-			ByteArray testling(createByteArray("abcde"));
+    ASSERT_EQ(reinterpret_cast<const char*>(NULL), reinterpret_cast<const char*>(vecptr(testling)));
+}
 
-			CPPUNIT_ASSERT_EQUAL(std::string("abcde"), byteArrayToString(testling));
-		}
+TEST(ByteArrayTest, testToString) {
+    ByteArray testling(createByteArray("abcde"));
 
-		void testToString_NullTerminated() {
-			ByteArray testling(createByteArray("abcde\0", 6));
+    ASSERT_EQ(std::string("abcde"), byteArrayToString(testling));
+}
 
-			CPPUNIT_ASSERT_EQUAL(std::string("abcde"), byteArrayToString(testling));
-		}
+TEST(ByteArrayTest, testToString_NullTerminated) {
+    ByteArray testling(createByteArray("abcde\0", 6));
 
-		void testToString_TwoNullTerminated() {
-			ByteArray testling(createByteArray("abcde\0\0", 7));
+    ASSERT_EQ(std::string("abcde"), byteArrayToString(testling));
+}
 
-			CPPUNIT_ASSERT_EQUAL(std::string("abcde"), byteArrayToString(testling));
-		}
+TEST(ByteArrayTest, testToString_TwoNullTerminated) {
+    ByteArray testling(createByteArray("abcde\0\0", 7));
 
-		void testToString_AllNull() {
-			ByteArray testling(createByteArray("\0\0", 2));
+    ASSERT_EQ(std::string("abcde"), byteArrayToString(testling));
+}
 
-			CPPUNIT_ASSERT_EQUAL(std::string(""), byteArrayToString(testling));
-		}
-};
+TEST(ByteArrayTest, testToString_AllNull) {
+    ByteArray testling(createByteArray("\0\0", 2));
 
-CPPUNIT_TEST_SUITE_REGISTRATION(ByteArrayTest);
+    ASSERT_EQ(std::string(""), byteArrayToString(testling));
+}
diff --git a/Swiften/Base/UnitTest/DateTimeTest.cpp b/Swiften/Base/UnitTest/DateTimeTest.cpp
index 8c3903a..6a82d96 100644
--- a/Swiften/Base/UnitTest/DateTimeTest.cpp
+++ b/Swiften/Base/UnitTest/DateTimeTest.cpp
@@ -1,43 +1,52 @@
 /*
- * Copyright (c) 2011 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2011-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
-#include <cppunit/extensions/HelperMacros.h>
-#include <cppunit/extensions/TestFactoryRegistry.h>
 #include <string>
+
 #include <boost/date_time/posix_time/posix_time.hpp>
 
+#include <cppunit/extensions/HelperMacros.h>
+#include <cppunit/extensions/TestFactoryRegistry.h>
+
 #include <Swiften/Base/DateTime.h>
 
 using namespace Swift;
 
 class DateTimeTest : public CppUnit::TestFixture {
-		CPPUNIT_TEST_SUITE(DateTimeTest);
-		CPPUNIT_TEST(testStringToDateTime_UTC);
-		CPPUNIT_TEST(testStringToDateTime_WithTimezone);
-		CPPUNIT_TEST(testDateTimeToString);
-		CPPUNIT_TEST_SUITE_END();
+        CPPUNIT_TEST_SUITE(DateTimeTest);
+        CPPUNIT_TEST(testStringToDateTime_UTC);
+        CPPUNIT_TEST(testStringToDateTime_WithTimezone);
+        CPPUNIT_TEST(testDateTimeToString);
+        CPPUNIT_TEST(testDateTimeToLocalStringNotThrowingException);
+        CPPUNIT_TEST_SUITE_END();
+
+    public:
+        void testStringToDateTime_UTC() {
+            boost::posix_time::ptime time = stringToDateTime("1969-07-21T02:56:15Z");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("1969-07-21T02:56:15"), boost::posix_time::to_iso_extended_string(time));
+        }
 
-	public:
-		void testStringToDateTime_UTC() {
-			boost::posix_time::ptime time = stringToDateTime("1969-07-21T02:56:15Z");
+        void testStringToDateTime_WithTimezone() {
+            boost::posix_time::ptime time = stringToDateTime("1969-07-20T21:56:15-05:00");
 
-			CPPUNIT_ASSERT_EQUAL(std::string("1969-07-21T02:56:15"), boost::posix_time::to_iso_extended_string(time));
-		}
+            CPPUNIT_ASSERT_EQUAL(std::string("1969-07-21T02:56:15"), boost::posix_time::to_iso_extended_string(time));
+        }
 
-		void testStringToDateTime_WithTimezone() {
-			boost::posix_time::ptime time = stringToDateTime("1969-07-20T21:56:15-05:00");
+        void testDateTimeToString() {
+            boost::posix_time::ptime time = stringToDateTime("1969-07-20T21:56:15-05:00");
 
-			CPPUNIT_ASSERT_EQUAL(std::string("1969-07-21T02:56:15"), boost::posix_time::to_iso_extended_string(time));
-		}
+            CPPUNIT_ASSERT_EQUAL(std::string("1969-07-21T02:56:15Z"), dateTimeToString(time));
+        }
 
-		void testDateTimeToString() {
-			boost::posix_time::ptime time = stringToDateTime("1969-07-20T21:56:15-05:00");
+        void testDateTimeToLocalStringNotThrowingException() {
+            boost::posix_time::ptime time = stringToDateTime("1954-07-20T21:56:15-05:00");
 
-			CPPUNIT_ASSERT_EQUAL(std::string("1969-07-21T02:56:15Z"), dateTimeToString(time));
-		}
+            CPPUNIT_ASSERT_EQUAL(std::string(""), dateTimeToLocalString(time));
+        }
 };
 
 CPPUNIT_TEST_SUITE_REGISTRATION(DateTimeTest);
diff --git a/Swiften/Base/UnitTest/IDGeneratorTest.cpp b/Swiften/Base/UnitTest/IDGeneratorTest.cpp
index 610138f..08bd48b 100644
--- a/Swiften/Base/UnitTest/IDGeneratorTest.cpp
+++ b/Swiften/Base/UnitTest/IDGeneratorTest.cpp
@@ -1,12 +1,13 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
+#include <set>
+
 #include <cppunit/extensions/HelperMacros.h>
 #include <cppunit/extensions/TestFactoryRegistry.h>
-#include <set>
 
 #include <Swiften/Base/IDGenerator.h>
 
@@ -14,27 +15,27 @@ using namespace Swift;
 
 class IDGeneratorTest : public CppUnit::TestFixture
 {
-		CPPUNIT_TEST_SUITE(IDGeneratorTest);
-		CPPUNIT_TEST(testGenerate);
-		CPPUNIT_TEST_SUITE_END();
-
-	public:
-		IDGeneratorTest() {}
-
-		void setUp() {
-			generatedIDs_.clear();
-		}
-
-		void testGenerate() {
-			IDGenerator testling;
-			for (unsigned int i = 0; i < 26*4; ++i) {
-				std::string id = testling.generateID();
-				CPPUNIT_ASSERT(generatedIDs_.insert(id).second);
-			}
-		}
-	
-	private:
-		std::set<std::string> generatedIDs_;
+        CPPUNIT_TEST_SUITE(IDGeneratorTest);
+        CPPUNIT_TEST(testGenerate);
+        CPPUNIT_TEST_SUITE_END();
+
+    public:
+        IDGeneratorTest() {}
+
+        void setUp() {
+            generatedIDs_.clear();
+        }
+
+        void testGenerate() {
+            IDGenerator testling;
+            for (unsigned int i = 0; i < 26*4; ++i) {
+                std::string id = testling.generateID();
+                CPPUNIT_ASSERT(generatedIDs_.insert(id).second);
+            }
+        }
+
+    private:
+        std::set<std::string> generatedIDs_;
 };
 
 CPPUNIT_TEST_SUITE_REGISTRATION(IDGeneratorTest);
diff --git a/Swiften/Base/UnitTest/LRUCacheTest.cpp b/Swiften/Base/UnitTest/LRUCacheTest.cpp
new file mode 100644
index 0000000..7d54c5c
--- /dev/null
+++ b/Swiften/Base/UnitTest/LRUCacheTest.cpp
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#include <string>
+
+#include <boost/optional.hpp>
+
+#include <Swiften/Base/LogSerializers.h>
+#include <Swiften/Base/LRUCache.h>
+
+#include <gtest/gtest.h> // This has to go after Swiften/Base/LogSerializers.h.
+
+using namespace Swift;
+namespace b = boost;
+
+TEST(LRUCacheTest, testCacheLimit) {
+    LRUCache<std::string, std::string, 3> testling;
+
+    testling.insert("A", "AA");
+    testling.insert("B", "BB");
+    testling.insert("C", "CC");
+
+    ASSERT_EQ(b::optional<std::string>("AA"), testling.get("A"));
+    ASSERT_EQ(b::optional<std::string>("BB"), testling.get("B"));
+    ASSERT_EQ(b::optional<std::string>("CC"), testling.get("C"));
+    ASSERT_EQ(b::optional<std::string>(), testling.get("D"));
+
+    testling.insert("D", "DD");
+
+    ASSERT_EQ(b::optional<std::string>(), testling.get("A"));
+    ASSERT_EQ(b::optional<std::string>("BB"), testling.get("B"));
+    ASSERT_EQ(b::optional<std::string>("CC"), testling.get("C"));
+    ASSERT_EQ(b::optional<std::string>("DD"), testling.get("D"));
+}
+
+TEST(LRUCacheTest, testMoveRecentToFrontOnGet) {
+    LRUCache<std::string, std::string, 3> testling;
+
+    testling.insert("A", "AA");
+    testling.insert("B", "BB");
+    testling.insert("C", "CC");
+
+    ASSERT_EQ(b::optional<std::string>("AA"), testling.get("A"));
+    ASSERT_EQ(b::optional<std::string>("BB"), testling.get("B"));
+    ASSERT_EQ(b::optional<std::string>("CC"), testling.get("C"));
+    ASSERT_EQ(b::optional<std::string>(), testling.get("D"));
+    ASSERT_EQ(b::optional<std::string>("AA"), testling.get("A"));
+
+    testling.insert("D", "DD");
+
+    ASSERT_EQ(b::optional<std::string>("AA"), testling.get("A"));
+    ASSERT_EQ(b::optional<std::string>(), testling.get("B"));
+    ASSERT_EQ(b::optional<std::string>("CC"), testling.get("C"));
+    ASSERT_EQ(b::optional<std::string>("DD"), testling.get("D"));
+}
+
+TEST(LRUCacheTest, testMoveRecentToFrontOnReinsert) {
+    LRUCache<std::string, std::string, 3> testling;
+
+    testling.insert("A", "AA");
+    testling.insert("B", "BB");
+    testling.insert("C", "CC");
+
+    ASSERT_EQ(b::optional<std::string>("AA"), testling.get("A"));
+    ASSERT_EQ(b::optional<std::string>("BB"), testling.get("B"));
+    ASSERT_EQ(b::optional<std::string>("CC"), testling.get("C"));
+    ASSERT_EQ(b::optional<std::string>(), testling.get("D"));
+
+    testling.insert("B", "BB");
+
+    ASSERT_EQ(b::optional<std::string>("AA"), testling.get("A"));
+    ASSERT_EQ(b::optional<std::string>("BB"), testling.get("B"));
+    ASSERT_EQ(b::optional<std::string>("CC"), testling.get("C"));
+    ASSERT_EQ(b::optional<std::string>(), testling.get("D"));
+
+    testling.insert("D", "DD");
+
+    ASSERT_EQ(b::optional<std::string>(), testling.get("A"));
+    ASSERT_EQ(b::optional<std::string>("BB"), testling.get("B"));
+    ASSERT_EQ(b::optional<std::string>("CC"), testling.get("C"));
+    ASSERT_EQ(b::optional<std::string>("DD"), testling.get("D"));
+}
+
+TEST(LRUCacheTest, testCacheReturnsValuesPreviouslyInserted) {
+    LRUCache<std::string, std::string, 3> testling;
+
+    testling.insert("A", "AA");
+    testling.insert("B", "BB");
+    testling.insert("C", "CC");
+
+    ASSERT_EQ(b::optional<std::string>("AA"), testling.get("A"));
+    ASSERT_EQ(b::optional<std::string>("BB"), testling.get("B"));
+    ASSERT_EQ(b::optional<std::string>("CC"), testling.get("C"));
+}
+
+TEST(LRUCacheTest, testCacheMissFunctionIsUsedOnCacheMiss) {
+    LRUCache<std::string, std::string, 3> testling;
+
+    testling.insert("A", "AA");
+    testling.insert("B", "BB");
+
+    ASSERT_EQ(b::optional<std::string>("AA"), testling.get("A"));
+    ASSERT_EQ(b::optional<std::string>("BB"), testling.get("B"));
+
+    ASSERT_EQ(b::optional<std::string>("CC"), testling.get("C", [](const std::string&) {
+        return boost::optional<std::string>(std::string("CC"));
+    }));
+    ASSERT_EQ(b::optional<std::string>("CC"), testling.get("C"));
+
+    ASSERT_EQ(b::optional<std::string>(), testling.get("D", [](const std::string&) {
+        return boost::optional<std::string>();
+    }));
+    ASSERT_EQ(b::optional<std::string>(), testling.get("D"));
+}
diff --git a/Swiften/Base/UnitTest/LogTest.cpp b/Swiften/Base/UnitTest/LogTest.cpp
new file mode 100644
index 0000000..5d710db
--- /dev/null
+++ b/Swiften/Base/UnitTest/LogTest.cpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2019 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#include <vector>
+
+#include <boost/algorithm/string/predicate.hpp>
+
+#include <gtest/gtest.h>
+
+#include <Swiften/Base/Log.h>
+
+using namespace Swift;
+
+struct LogEntry {
+    LogEntry(Log::Severity severity, std::string file, int line, std::string function, std::string message) : severity(severity), file(std::move(file)), line(line), function(std::move(function)), message(std::move(message)) {}
+
+    Log::Severity severity;
+    std::string file;
+    int line;
+    std::string function;
+    std::string message;
+};
+
+// Helper class to set the logging callback.  Using this class to set it will ensure the
+// logCallback is reset to empty (its default state) after each test.
+class LogCallbackSetter {
+public:
+    LogCallbackSetter(Log::Callback callback) {
+        Log::setLogCallback(callback);
+    }
+    ~LogCallbackSetter() {
+        Log::setLogCallback({});
+    }
+};
+
+TEST(LogTest, testCallback) {
+    std::vector<LogEntry> logEntries;
+    LogCallbackSetter callbackSetter = {[&](Log::Severity severity, const std::string& file, int line, const std::string& function, const std::string& message) {
+        logEntries.emplace_back(severity, file, line, function, message);
+    }};
+
+    SWIFT_LOG(error) << "An error";
+    ASSERT_EQ(1, logEntries.size());
+    ASSERT_EQ(Log::error, logEntries[0].severity);
+    ASSERT_EQ("An error", logEntries[0].message);
+}
diff --git a/Swiften/Base/UnitTest/PathTest.cpp b/Swiften/Base/UnitTest/PathTest.cpp
index f5f99e7..dd2233b 100644
--- a/Swiften/Base/UnitTest/PathTest.cpp
+++ b/Swiften/Base/UnitTest/PathTest.cpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2013 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2013 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <cppunit/extensions/HelperMacros.h>
@@ -13,23 +13,23 @@
 using namespace Swift;
 
 class PathTest : public CppUnit::TestFixture {
-		CPPUNIT_TEST_SUITE(PathTest);
-		CPPUNIT_TEST(testStringToPath);
-		CPPUNIT_TEST(testPathToString);
-		CPPUNIT_TEST_SUITE_END();
+        CPPUNIT_TEST_SUITE(PathTest);
+        CPPUNIT_TEST(testStringToPath);
+        CPPUNIT_TEST(testPathToString);
+        CPPUNIT_TEST_SUITE_END();
 
-	public:
-		void testStringToPath() {
+    public:
+        void testStringToPath() {
 #ifdef SWIFTEN_PLATFORM_WINDOWS
-			CPPUNIT_ASSERT(std::wstring(L"tron\xe7on") == stringToPath("tron\xc3\xa7on").native());
+            CPPUNIT_ASSERT(std::wstring(L"tron\xe7on") == stringToPath("tron\xc3\xa7on").native());
 #else
-			CPPUNIT_ASSERT_EQUAL(std::string("tron\xc3\xa7on"), stringToPath("tron\xc3\xa7on").native());
+            CPPUNIT_ASSERT_EQUAL(std::string("tron\xc3\xa7on"), stringToPath("tron\xc3\xa7on").native());
 #endif
-		}
+        }
 
-		void testPathToString() {
-			CPPUNIT_ASSERT_EQUAL(std::string("tron\xc3\xa7on"), pathToString(stringToPath("tron\xc3\xa7on")));
-		}
+        void testPathToString() {
+            CPPUNIT_ASSERT_EQUAL(std::string("tron\xc3\xa7on"), pathToString(stringToPath("tron\xc3\xa7on")));
+        }
 };
 
 CPPUNIT_TEST_SUITE_REGISTRATION(PathTest);
diff --git a/Swiften/Base/UnitTest/SimpleIDGeneratorTest.cpp b/Swiften/Base/UnitTest/SimpleIDGeneratorTest.cpp
index 80aff02..9b49c0a 100644
--- a/Swiften/Base/UnitTest/SimpleIDGeneratorTest.cpp
+++ b/Swiften/Base/UnitTest/SimpleIDGeneratorTest.cpp
@@ -1,40 +1,41 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
+#include <set>
+
 #include <cppunit/extensions/HelperMacros.h>
 #include <cppunit/extensions/TestFactoryRegistry.h>
-#include <set>
 
-#include "Swiften/Base/SimpleIDGenerator.h"
+#include <Swiften/Base/SimpleIDGenerator.h>
 
 using namespace Swift;
 
 class SimpleIDGeneratorTest : public CppUnit::TestFixture
 {
-		CPPUNIT_TEST_SUITE(SimpleIDGeneratorTest);
-		CPPUNIT_TEST(testGenerate);
-		CPPUNIT_TEST_SUITE_END();
-
-	public:
-		SimpleIDGeneratorTest() {}
-
-		void setUp() {
-			generatedIDs_.clear();
-		}
-
-		void testGenerate() {
-			SimpleIDGenerator testling;
-			for (unsigned int i = 0; i < 26*4; ++i) {
-				std::string id = testling.generateID();
-				CPPUNIT_ASSERT(generatedIDs_.insert(id).second);
-			}
-		}
-	
-	private:
-		std::set<std::string> generatedIDs_;
+        CPPUNIT_TEST_SUITE(SimpleIDGeneratorTest);
+        CPPUNIT_TEST(testGenerate);
+        CPPUNIT_TEST_SUITE_END();
+
+    public:
+        SimpleIDGeneratorTest() {}
+
+        void setUp() {
+            generatedIDs_.clear();
+        }
+
+        void testGenerate() {
+            SimpleIDGenerator testling;
+            for (unsigned int i = 0; i < 26*4; ++i) {
+                std::string id = testling.generateID();
+                CPPUNIT_ASSERT(generatedIDs_.insert(id).second);
+            }
+        }
+
+    private:
+        std::set<std::string> generatedIDs_;
 };
 
 CPPUNIT_TEST_SUITE_REGISTRATION(SimpleIDGeneratorTest);
diff --git a/Swiften/Base/UnitTest/StringTest.cpp b/Swiften/Base/UnitTest/StringTest.cpp
index ffca98a..889c9c7 100644
--- a/Swiften/Base/UnitTest/StringTest.cpp
+++ b/Swiften/Base/UnitTest/StringTest.cpp
@@ -1,128 +1,171 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
+#include <string>
+
 #include <cppunit/extensions/HelperMacros.h>
 #include <cppunit/extensions/TestFactoryRegistry.h>
-#include <string>
 
-#include <Swiften/Base/String.h>
 #include <Swiften/Base/Platform.h>
+#include <Swiften/Base/String.h>
+
+#include <boost/format.hpp>
 
 using namespace Swift;
 
-class StringTest : public CppUnit::TestFixture {
-		CPPUNIT_TEST_SUITE(StringTest);
-		CPPUNIT_TEST(testGetUnicodeCodePoints);
-		CPPUNIT_TEST(testGetSplittedAtFirst);
-		CPPUNIT_TEST(testGetSplittedAtFirst_CharacterAtBegin);
-		CPPUNIT_TEST(testGetSplittedAtFirst_CharacterAtEnd);
-		CPPUNIT_TEST(testGetSplittedAtFirst_NoSuchCharacter);
-		CPPUNIT_TEST(testReplaceAll);
-		CPPUNIT_TEST(testReplaceAll_LastChar);
-		CPPUNIT_TEST(testReplaceAll_ConsecutiveChars);
-		CPPUNIT_TEST(testReplaceAll_MatchingReplace);
-		CPPUNIT_TEST(testSplit);
+ class StringTest : public CppUnit::TestFixture {
+        CPPUNIT_TEST_SUITE(StringTest);
+        CPPUNIT_TEST(testGetUnicodeCodePoints);
+        CPPUNIT_TEST(testGetSplittedAtFirst);
+        CPPUNIT_TEST(testGetSplittedAtFirst_CharacterAtBegin);
+        CPPUNIT_TEST(testGetSplittedAtFirst_CharacterAtEnd);
+        CPPUNIT_TEST(testGetSplittedAtFirst_NoSuchCharacter);
+        CPPUNIT_TEST(testReplaceAll);
+        CPPUNIT_TEST(testReplaceAll_LastChar);
+        CPPUNIT_TEST(testReplaceAll_ConsecutiveChars);
+        CPPUNIT_TEST(testReplaceAll_MatchingReplace);
+        CPPUNIT_TEST(testIsValidXMPPCharacter);
+        CPPUNIT_TEST(testSanitizeXMPPString);
+        CPPUNIT_TEST(testSplit);
 #ifdef SWIFTEN_PLATFORM_WINDOWS
-		CPPUNIT_TEST(testConvertWStringToString);
-		CPPUNIT_TEST(testConvertStringToWString);
+        CPPUNIT_TEST(testConvertWStringToString);
+        CPPUNIT_TEST(testConvertStringToWString);
 #endif
-		CPPUNIT_TEST_SUITE_END();
-
-	public:
-		void testGetUnicodeCodePoints() {
-			std::string testling("$\xc2\xa2\xe2\x82\xac\xf4\x8a\xaf\x8d");
-			std::vector<unsigned int> points = String::getUnicodeCodePoints(testling);
-
-			CPPUNIT_ASSERT_EQUAL(0x24U, points[0]);
-			CPPUNIT_ASSERT_EQUAL(0xA2U, points[1]);
-			CPPUNIT_ASSERT_EQUAL(0x20ACU, points[2]);
-			CPPUNIT_ASSERT_EQUAL(0x10ABCDU, points[3]);
-		}
-
-		void testGetSplittedAtFirst() {
-			std::string testling("ab@cd@ef");
-
-			std::pair<std::string,std::string> result = String::getSplittedAtFirst(testling, '@');
-			CPPUNIT_ASSERT_EQUAL(std::string("ab"), result.first);
-			CPPUNIT_ASSERT_EQUAL(std::string("cd@ef"), result.second);
-		}
-
-		void testGetSplittedAtFirst_CharacterAtBegin() {
-			std::string testling(" ab");
-
-			std::pair<std::string,std::string> result = String::getSplittedAtFirst(testling, ' ');
-			CPPUNIT_ASSERT(result.first.empty());
-			CPPUNIT_ASSERT_EQUAL(std::string("ab"), result.second);
-		}
-
-		void testGetSplittedAtFirst_CharacterAtEnd() {
-			std::string testling("ab@");
-
-			std::pair<std::string,std::string> result = String::getSplittedAtFirst(testling, '@');
-			CPPUNIT_ASSERT_EQUAL(std::string("ab"), result.first);
-			CPPUNIT_ASSERT(result.second.empty());
-		}
-
-		void testGetSplittedAtFirst_NoSuchCharacter() {
-			std::string testling("ab");
-
-			std::pair<std::string,std::string> result = String::getSplittedAtFirst(testling, '@');
-			CPPUNIT_ASSERT_EQUAL(std::string("ab"), result.first);
-			CPPUNIT_ASSERT(result.second.empty());
-		}
-
-		void testReplaceAll() {
-			std::string testling("abcbd");
-
-			String::replaceAll(testling, 'b', "xyz");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("axyzcxyzd"), testling);
-		}
-
-		void testReplaceAll_LastChar() {
-			std::string testling("abc");
-
-			String::replaceAll(testling, 'c', "xyz");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("abxyz"), testling);
-		}
-
-		void testReplaceAll_ConsecutiveChars() {
-			std::string testling("abbc");
-
-			String::replaceAll(testling, 'b',"xyz");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("axyzxyzc"), testling);
-		}
-
-		void testReplaceAll_MatchingReplace() {
-			std::string testling("abc");
-
-			String::replaceAll(testling, 'b',"bbb");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("abbbc"), testling);
-		}
-
-		void testSplit() {
-			std::vector<std::string> result = String::split("abc def ghi", ' ');
+        CPPUNIT_TEST_SUITE_END();
 
-			CPPUNIT_ASSERT_EQUAL(3, static_cast<int>(result.size()));
-			CPPUNIT_ASSERT_EQUAL(std::string("abc"), result[0]);
-			CPPUNIT_ASSERT_EQUAL(std::string("def"), result[1]);
-			CPPUNIT_ASSERT_EQUAL(std::string("ghi"), result[2]);
-		}
+    public:
+        void testGetUnicodeCodePoints() {
+            std::string testling("$\xc2\xa2\xe2\x82\xac\xf4\x8a\xaf\x8d");
+            std::vector<unsigned int> points = String::getUnicodeCodePoints(testling);
+
+            CPPUNIT_ASSERT_EQUAL(0x24U, points[0]);
+            CPPUNIT_ASSERT_EQUAL(0xA2U, points[1]);
+            CPPUNIT_ASSERT_EQUAL(0x20ACU, points[2]);
+            CPPUNIT_ASSERT_EQUAL(0x10ABCDU, points[3]);
+        }
+
+        void testGetSplittedAtFirst() {
+            std::string testling("ab@cd@ef");
+
+            std::pair<std::string,std::string> result = String::getSplittedAtFirst(testling, '@');
+            CPPUNIT_ASSERT_EQUAL(std::string("ab"), result.first);
+            CPPUNIT_ASSERT_EQUAL(std::string("cd@ef"), result.second);
+        }
+
+        void testGetSplittedAtFirst_CharacterAtBegin() {
+            std::string testling(" ab");
+
+            std::pair<std::string,std::string> result = String::getSplittedAtFirst(testling, ' ');
+            CPPUNIT_ASSERT(result.first.empty());
+            CPPUNIT_ASSERT_EQUAL(std::string("ab"), result.second);
+        }
+
+        void testGetSplittedAtFirst_CharacterAtEnd() {
+            std::string testling("ab@");
+
+            std::pair<std::string,std::string> result = String::getSplittedAtFirst(testling, '@');
+            CPPUNIT_ASSERT_EQUAL(std::string("ab"), result.first);
+            CPPUNIT_ASSERT(result.second.empty());
+        }
+
+        void testGetSplittedAtFirst_NoSuchCharacter() {
+            std::string testling("ab");
+
+            std::pair<std::string,std::string> result = String::getSplittedAtFirst(testling, '@');
+            CPPUNIT_ASSERT_EQUAL(std::string("ab"), result.first);
+            CPPUNIT_ASSERT(result.second.empty());
+        }
+
+        void testReplaceAll() {
+            std::string testling("abcbd");
+
+            String::replaceAll(testling, 'b', "xyz");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("axyzcxyzd"), testling);
+        }
+
+        void testReplaceAll_LastChar() {
+            std::string testling("abc");
+
+            String::replaceAll(testling, 'c', "xyz");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("abxyz"), testling);
+        }
+
+        void testReplaceAll_ConsecutiveChars() {
+            std::string testling("abbc");
+
+            String::replaceAll(testling, 'b',"xyz");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("axyzxyzc"), testling);
+        }
+
+        void testReplaceAll_MatchingReplace() {
+            std::string testling("abc");
+
+            String::replaceAll(testling, 'b',"bbb");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("abbbc"), testling);
+        }
+
+        void testIsValidXMPPCharacter() {
+            const std::uint32_t testCharacters[] = {
+                0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+                0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
+                0x20, 0x7F, 0x80, 0x84, 0x85, 0xFF };
+            const auto testLength = sizeof(testCharacters) / sizeof(std::uint32_t);
+            const bool expectedValid[] = {
+                0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0,
+                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+                1, 0, 0, 0, 1, 1 };
+            static_assert(testLength == sizeof(expectedValid), "size of test data must match");
+
+            for (std::size_t i = 0; i != testLength; ++i) {
+                const auto c = testCharacters[i];
+                CPPUNIT_ASSERT_EQUAL_MESSAGE(boost::str(boost::format("While testing at idx=%d: 0x%02x") % i % c), expectedValid[i], String::isValidXMPPCharacter(c));
+            }
+        }
+
+        void testSanitizeXMPPString() {
+            std::vector<std::pair<std::string, std::string>> testData = {
+                { "\0", "" },
+                { std::string("\0\t", 3), "\t" },
+                { "", "" },
+                { std::string("\0", 1) , std::string() },
+                { std::string("\0blah\0", 6) , std::string("blah", 4) },
+                { "z\xC3\x9F\xE6\xB0\xB4\xF0\x9D\x84\x8B" , "z\xC3\x9F\xE6\xB0\xB4\xF0\x9D\x84\x8B" }, // or in u8 notation: u8"z\u00df\u6c34\U0001d10b"
+                { "\x7FT\t\x0c\xff\xfeT", "T\tT" },
+                { "\x01Q\x0BW\x81T", "QWT" },
+                { "\xF0\x9F\x98\x83" "ABC" "\xE2\xBE\xA6", "\xF0\x9F\x98\x83" "ABC" "\xE2\xBE\xA6" }
+            };
+
+            for (std::size_t i = 0; i != testData.size(); ++i) {
+                const auto & t = testData[i];
+                const auto actual = String::sanitizeXMPPString(t.first);
+                CPPUNIT_ASSERT_EQUAL_MESSAGE(boost::str(boost::format("While testing string idx=%d") % i), std::string(actual), t.second);
+            }
+        }
+
+        void testSplit() {
+            std::vector<std::string> result = String::split("abc def ghi", ' ');
+
+            CPPUNIT_ASSERT_EQUAL(3, static_cast<int>(result.size()));
+            CPPUNIT_ASSERT_EQUAL(std::string("abc"), result[0]);
+            CPPUNIT_ASSERT_EQUAL(std::string("def"), result[1]);
+            CPPUNIT_ASSERT_EQUAL(std::string("ghi"), result[2]);
+        }
 
 #ifdef SWIFTEN_PLATFORM_WINDOWS
-		void testConvertWStringToString() {
-			CPPUNIT_ASSERT_EQUAL(std::string("tron\xc3\xa7on"), convertWStringToString(std::wstring(L"tron\xe7on")));
-		}
+        void testConvertWStringToString() {
+            CPPUNIT_ASSERT_EQUAL(std::string("tron\xc3\xa7on"), convertWStringToString(std::wstring(L"tron\xe7on")));
+        }
 
-		void testConvertStringToWString() {
-			CPPUNIT_ASSERT(std::wstring(L"tron\xe7on") == convertStringToWString(std::string("tron\xc3\xa7on")));
-		}
+        void testConvertStringToWString() {
+            CPPUNIT_ASSERT(std::wstring(L"tron\xe7on") == convertStringToWString(std::string("tron\xc3\xa7on")));
+        }
 #endif
 };
 
diff --git a/Swiften/Base/UnitTest/URLTest.cpp b/Swiften/Base/UnitTest/URLTest.cpp
index e82321f..da9f15c 100644
--- a/Swiften/Base/UnitTest/URLTest.cpp
+++ b/Swiften/Base/UnitTest/URLTest.cpp
@@ -1,114 +1,238 @@
 /*
- * Copyright (c) 2012 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2012-2018 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
+#include <boost/lexical_cast.hpp>
+
 #include <cppunit/extensions/HelperMacros.h>
 #include <cppunit/extensions/TestFactoryRegistry.h>
 
 #include <Swiften/Base/URL.h>
-#include <boost/lexical_cast.hpp>
 
 using namespace Swift;
 
 class URLTest : public CppUnit::TestFixture {
-		CPPUNIT_TEST_SUITE(URLTest);
-		CPPUNIT_TEST(testFromString);
-		CPPUNIT_TEST(testFromString_WithoutPath);
-		CPPUNIT_TEST(testFromString_WithRootPath);
-		CPPUNIT_TEST(testFromString_WithPort);
-		CPPUNIT_TEST(testFromString_WithPortOnePartPath);
-		CPPUNIT_TEST(testFromString_WithPortWithoutPath);
-		CPPUNIT_TEST(testFromString_WithUserInfo);
-		CPPUNIT_TEST(testFromString_NonASCIIHost);
-		CPPUNIT_TEST(testFromString_NonASCIIPath);
-		CPPUNIT_TEST(testToString);
-		CPPUNIT_TEST(testToString_WithPort);
-		CPPUNIT_TEST_SUITE_END();
-
-	public:
-		void testFromString() {
-			URL url = URL::fromString("http://foo.bar/baz/bam");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
-			CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
-			CPPUNIT_ASSERT(!url.getPort());
-			CPPUNIT_ASSERT_EQUAL(std::string("/baz/bam"), url.getPath());
-		}
-
-		void testFromString_WithoutPath() {
-			URL url = URL::fromString("http://foo.bar");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
-			CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
-			CPPUNIT_ASSERT(!url.getPort());
-			CPPUNIT_ASSERT_EQUAL(std::string(""), url.getPath());
-		}
-
-		void testFromString_WithRootPath() {
-			URL url = URL::fromString("http://foo.bar/");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
-			CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
-			CPPUNIT_ASSERT(!url.getPort());
-			CPPUNIT_ASSERT_EQUAL(std::string("/"), url.getPath());
-		}
-
-		void testFromString_WithPort() {
-			URL url = URL::fromString("http://foo.bar:1234/baz/bam");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
-			CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
-			CPPUNIT_ASSERT_EQUAL(1234, *url.getPort());
-			CPPUNIT_ASSERT_EQUAL(std::string("/baz/bam"), url.getPath());
-		}
-
-		void testFromString_WithPortOnePartPath() {
-			URL url = URL::fromString("http://foo.bar:11440/http-bind/");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
-			CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
-			CPPUNIT_ASSERT_EQUAL(11440, *url.getPort());
-			CPPUNIT_ASSERT_EQUAL(std::string("/http-bind/"), url.getPath());
-		}
-
-		void testFromString_WithPortWithoutPath() {
-			URL url = URL::fromString("http://foo.bar:1234");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
-			CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
-			CPPUNIT_ASSERT_EQUAL(1234, *url.getPort());
-			CPPUNIT_ASSERT_EQUAL(std::string(""), url.getPath());
-		}
-
-		void testFromString_WithUserInfo() {
-			URL url = URL::fromString("http://user:pass@foo.bar/baz/bam");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
-			CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
-			CPPUNIT_ASSERT_EQUAL(std::string("/baz/bam"), url.getPath());
-		}
-
-		void testFromString_NonASCIIHost() {
-			URL url = URL::fromString("http://www.tron%C3%A7on.be/baz/bam");
-
-			CPPUNIT_ASSERT_EQUAL(std::string("www.tron\xc3\xa7on.be"), url.getHost());
-		}
-
-		void testFromString_NonASCIIPath() {
-			URL url = URL::fromString("http://foo.bar/baz/tron%C3%A7on/bam");
-			
-			CPPUNIT_ASSERT_EQUAL(std::string("/baz/tron\xc3\xa7on/bam"), url.getPath());
-		}
-
-		void testToString() {
-			CPPUNIT_ASSERT_EQUAL(std::string("http://foo.bar/baz/bam"), URL("http", "foo.bar", "/baz/bam").toString());
-		}
-
-		void testToString_WithPort() {
-			CPPUNIT_ASSERT_EQUAL(std::string("http://foo.bar:1234/baz/bam"), URL("http", "foo.bar", 1234, "/baz/bam").toString());
-		}
+        CPPUNIT_TEST_SUITE(URLTest);
+        CPPUNIT_TEST(testFromString);
+        CPPUNIT_TEST(testFromString_WithoutPath);
+        CPPUNIT_TEST(testFromString_WithRootPath);
+        CPPUNIT_TEST(testFromString_WithPort);
+        CPPUNIT_TEST(testFromString_WithPortOnePartPath);
+        CPPUNIT_TEST(testFromString_WithPortWithoutPath);
+        CPPUNIT_TEST(testFromString_WithUserInfo);
+        CPPUNIT_TEST(testFromString_NonASCIIHost);
+        CPPUNIT_TEST(testFromString_NonASCIIPath);
+        CPPUNIT_TEST(testFromString_IPv4Address);
+        CPPUNIT_TEST(testFromString_IPv4AddressWithPort);
+        CPPUNIT_TEST(testFromString_IPv6Address);
+        CPPUNIT_TEST(testFromString_IPv6AddressWithPort);
+        CPPUNIT_TEST(testToString);
+        CPPUNIT_TEST(testToString_WithPort);
+        CPPUNIT_TEST(test_FromString_ToString_IPv6RFC2732);
+        CPPUNIT_TEST_SUITE_END();
+
+    public:
+        void testFromString() {
+            URL url = URL::fromString("http://foo.bar/baz/bam");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
+            CPPUNIT_ASSERT(!url.getPort());
+            CPPUNIT_ASSERT_EQUAL(std::string("/baz/bam"), url.getPath());
+        }
+
+        void testFromString_WithoutPath() {
+            URL url = URL::fromString("http://foo.bar");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
+            CPPUNIT_ASSERT(!url.getPort());
+            CPPUNIT_ASSERT_EQUAL(std::string(""), url.getPath());
+        }
+
+        void testFromString_WithRootPath() {
+            URL url = URL::fromString("http://foo.bar/");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
+            CPPUNIT_ASSERT(!url.getPort());
+            CPPUNIT_ASSERT_EQUAL(std::string("/"), url.getPath());
+        }
+
+        void testFromString_WithPort() {
+            URL url = URL::fromString("http://foo.bar:1234/baz/bam");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
+            CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(1234), *url.getPort());
+            CPPUNIT_ASSERT_EQUAL(std::string("/baz/bam"), url.getPath());
+        }
+
+        void testFromString_WithPortOnePartPath() {
+            URL url = URL::fromString("http://foo.bar:11440/http-bind/");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
+            CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(11440), *url.getPort());
+            CPPUNIT_ASSERT_EQUAL(std::string("/http-bind/"), url.getPath());
+        }
+
+        void testFromString_WithPortWithoutPath() {
+            URL url = URL::fromString("http://foo.bar:1234");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
+            CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(1234), *url.getPort());
+            CPPUNIT_ASSERT_EQUAL(std::string(""), url.getPath());
+        }
+
+        void testFromString_WithUserInfo() {
+            URL url = URL::fromString("http://user:pass@foo.bar/baz/bam");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("foo.bar"), url.getHost());
+            CPPUNIT_ASSERT_EQUAL(std::string("/baz/bam"), url.getPath());
+        }
+
+        void testFromString_NonASCIIHost() {
+            URL url = URL::fromString("http://www.tron%C3%A7on.be/baz/bam");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("www.tron\xc3\xa7on.be"), url.getHost());
+        }
+
+        void testFromString_NonASCIIPath() {
+            URL url = URL::fromString("http://foo.bar/baz/tron%C3%A7on/bam");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("/baz/tron\xc3\xa7on/bam"), url.getPath());
+        }
+
+        void testFromString_IPv4Address() {
+            URL url = URL::fromString("http://127.0.0.1/foobar");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("127.0.0.1"), url.getHost());
+            CPPUNIT_ASSERT_EQUAL(std::string("/foobar"), url.getPath());
+        }
+
+        void testFromString_IPv4AddressWithPort() {
+            URL url = URL::fromString("http://127.0.0.1:12345/foobar");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("127.0.0.1"), url.getHost());
+            CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(12345), url.getPort().get_value_or(0));
+            CPPUNIT_ASSERT_EQUAL(std::string("/foobar"), url.getPath());
+        }
+
+        void testFromString_IPv6Address() {
+            URL url = URL::fromString("http://[fdf8:f53b:82e4::53]/foobar");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("fdf8:f53b:82e4::53"), url.getHost());
+        }
+
+        void testFromString_IPv6AddressWithPort() {
+            URL url = URL::fromString("http://[fdf8:f53b:82e4::53]:12435/foobar");
+
+            CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+            CPPUNIT_ASSERT_EQUAL(std::string("fdf8:f53b:82e4::53"), url.getHost());
+            CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(12435), url.getPort().get_value_or(0));
+        }
+
+        void test_FromString_ToString_IPv6RFC2732() {
+            {
+                const char* testVector = "http://[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]:80/index.html";
+                URL url = URL::fromString(testVector);
+
+                CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+                CPPUNIT_ASSERT_EQUAL(std::string("FEDC:BA98:7654:3210:FEDC:BA98:7654:3210"), url.getHost());
+                CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(80), url.getPort().get_value_or(2));
+                CPPUNIT_ASSERT_EQUAL(std::string("/index.html"), url.getPath());
+
+                CPPUNIT_ASSERT_EQUAL(std::string(testVector), url.toString());
+            }
+
+            {
+                const char* testVector = "http://[1080:0:0:0:8:800:200C:417A]/index.html";
+                URL url = URL::fromString(testVector);
+
+                CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+                CPPUNIT_ASSERT_EQUAL(std::string("1080:0:0:0:8:800:200C:417A"), url.getHost());
+                CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(2), url.getPort().get_value_or(2));
+                CPPUNIT_ASSERT_EQUAL(std::string("/index.html"), url.getPath());
+
+                CPPUNIT_ASSERT_EQUAL(std::string(testVector), url.toString());
+            }
+
+            {
+                const char* testVector = "http://[3ffe:2a00:100:7031::1]";
+                URL url = URL::fromString(testVector);
+
+                CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+                CPPUNIT_ASSERT_EQUAL(std::string("3ffe:2a00:100:7031::1"), url.getHost());
+                CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(2), url.getPort().get_value_or(2));
+                CPPUNIT_ASSERT_EQUAL(std::string(""), url.getPath());
+
+                CPPUNIT_ASSERT_EQUAL(std::string(testVector), url.toString());
+            }
+
+            {
+                const char* testVector = "http://[1080::8:800:200C:417A]/foo";
+                URL url = URL::fromString(testVector);
+
+                CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+                CPPUNIT_ASSERT_EQUAL(std::string("1080::8:800:200C:417A"), url.getHost());
+                CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(2), url.getPort().get_value_or(2));
+                CPPUNIT_ASSERT_EQUAL(std::string("/foo"), url.getPath());
+
+                CPPUNIT_ASSERT_EQUAL(std::string(testVector), url.toString());
+            }
+
+            {
+                const char* testVector = "http://[::192.9.5.5]/ipng";
+                URL url = URL::fromString(testVector);
+
+                CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+                CPPUNIT_ASSERT_EQUAL(std::string("::192.9.5.5"), url.getHost());
+                CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(2), url.getPort().get_value_or(2));
+                CPPUNIT_ASSERT_EQUAL(std::string("/ipng"), url.getPath());
+
+                CPPUNIT_ASSERT_EQUAL(std::string(testVector), url.toString());
+            }
+
+            {
+                const char* testVector = "http://[::FFFF:129.144.52.38]:80/index.html";
+                URL url = URL::fromString(testVector);
+
+                CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+                CPPUNIT_ASSERT_EQUAL(std::string("::FFFF:129.144.52.38"), url.getHost());
+                CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(80), url.getPort().get_value_or(2));
+                CPPUNIT_ASSERT_EQUAL(std::string("/index.html"), url.getPath());
+
+                CPPUNIT_ASSERT_EQUAL(std::string(testVector), url.toString());
+            }
+
+            {
+                const char* testVector = "http://[2010:836B:4179::836B:4179]";
+                URL url = URL::fromString(testVector);
+
+                CPPUNIT_ASSERT_EQUAL(std::string("http"), url.getScheme());
+                CPPUNIT_ASSERT_EQUAL(std::string("2010:836B:4179::836B:4179"), url.getHost());
+                CPPUNIT_ASSERT_EQUAL(static_cast<unsigned short>(2), url.getPort().get_value_or(2));
+                CPPUNIT_ASSERT_EQUAL(std::string(), url.getPath());
+
+                CPPUNIT_ASSERT_EQUAL(std::string(testVector), url.toString());
+            }
+        }
+
+        void testToString() {
+            CPPUNIT_ASSERT_EQUAL(std::string("http://foo.bar/baz/bam"), URL("http", "foo.bar", "/baz/bam").toString());
+        }
+
+        void testToString_WithPort() {
+            CPPUNIT_ASSERT_EQUAL(std::string("http://foo.bar:1234/baz/bam"), URL("http", "foo.bar", 1234, "/baz/bam").toString());
+        }
 };
 
 CPPUNIT_TEST_SUITE_REGISTRATION(URLTest);
diff --git a/Swiften/Base/WindowsRegistry.h b/Swiften/Base/WindowsRegistry.h
index 11a26b3..6243dd2 100644
--- a/Swiften/Base/WindowsRegistry.h
+++ b/Swiften/Base/WindowsRegistry.h
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2012 Kevin Smith
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2012 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
@@ -9,49 +9,49 @@
 #include <windows.h>
 
 namespace Swift {
-	class WindowsRegistry {
-		public:
-			static bool isFIPSEnabled() {
-				char* pathForXP = "System\\CurrentControlSet\\Control\\Lsa";
-				char* pathSinceVista = "System\\CurrentControlSet\\Control\\Lsa\\FIPSAlgorithmPolicy";
-				char* keyForXP = "FIPSAlgorithmPolicy";
-				char* keySinceVista = "Enabled";
-
-				OSVERSIONINFO osvi;
-				ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
-				osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
-				GetVersionEx(&osvi);
-
-				char* keyForOS = osvi.dwMajorVersion < 6 ? keyForXP : keySinceVista;
-				char* pathForOS = osvi.dwMajorVersion < 6 ? pathForXP : pathSinceVista;
-
-				/* http://support.microsoft.com/kb/811833 */
-				/* http://msdn.microsoft.com/en-us/library/ms724911%28VS.85%29.aspx */
-				HKEY key;
-				bool result = false;
-				if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,
-							pathForOS,
-							0,
-							KEY_READ,
-							&key) != ERROR_SUCCESS) {
-					/* If we can't find the key that says we're FIPS, we're not FIPS */
-					return result;
-				}
-				DWORD keyType = REG_DWORD;
-				DWORD data;
-				DWORD length = sizeof(data);
-
-				if (RegQueryValueEx(key,
-						keyForOS,
-						NULL,
-						&keyType,
-						(LPBYTE)&data,
-						&length) == ERROR_SUCCESS) {
-					result = data != 0;
-				}
-
-				RegCloseKey(key);
-				return result;
-			}
-	};
+    class WindowsRegistry {
+        public:
+            static bool isFIPSEnabled() {
+                char* pathForXP = "System\\CurrentControlSet\\Control\\Lsa";
+                char* pathSinceVista = "System\\CurrentControlSet\\Control\\Lsa\\FIPSAlgorithmPolicy";
+                char* keyForXP = "FIPSAlgorithmPolicy";
+                char* keySinceVista = "Enabled";
+
+                OSVERSIONINFO osvi;
+                ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
+                osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+                GetVersionEx(&osvi);
+
+                char* keyForOS = osvi.dwMajorVersion < 6 ? keyForXP : keySinceVista;
+                char* pathForOS = osvi.dwMajorVersion < 6 ? pathForXP : pathSinceVista;
+
+                /* http://support.microsoft.com/kb/811833 */
+                /* http://msdn.microsoft.com/en-us/library/ms724911%28VS.85%29.aspx */
+                HKEY key;
+                bool result = false;
+                if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,
+                            pathForOS,
+                            0,
+                            KEY_READ,
+                            &key) != ERROR_SUCCESS) {
+                    /* If we can't find the key that says we're FIPS, we're not FIPS */
+                    return result;
+                }
+                DWORD keyType = REG_DWORD;
+                DWORD data;
+                DWORD length = sizeof(data);
+
+                if (RegQueryValueEx(key,
+                        keyForOS,
+                        NULL,
+                        &keyType,
+                        (LPBYTE)&data,
+                        &length) == ERROR_SUCCESS) {
+                    result = data != 0;
+                }
+
+                RegCloseKey(key);
+                return result;
+            }
+    };
 }
diff --git a/Swiften/Base/boost_bsignals.h b/Swiften/Base/boost_bsignals.h
deleted file mode 100644
index 7609c94..0000000
--- a/Swiften/Base/boost_bsignals.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
- */
-
-// Work around for the boost::signals / Qt signals keyword clash.
-// Based on an example from Frank Hess, improved by Niels Dekker
-
-#pragma once
-
-#if defined(signals) && defined(Q_SIGNALS) && !defined(QT_MOC_CPP)
-#undef signals
-#define signals signals
-#endif
-
-#include <boost/signal.hpp>
-
-namespace boost {
-	namespace bsignals = signals;
-}
-
-#if defined(signals) && defined(Q_SIGNALS) && !defined(QT_MOC_CPP)
-#undef signals
-#define signals Q_SIGNALS
-#endif
diff --git a/Swiften/Base/foreach.h b/Swiften/Base/foreach.h
deleted file mode 100644
index 3ad506d..0000000
--- a/Swiften/Base/foreach.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
- */
-
-#pragma once
-
-#include <boost/foreach.hpp>
-
-#undef foreach
-#define foreach BOOST_FOREACH
-#define reverse_foreach BOOST_REVERSE_FOREACH
diff --git a/Swiften/Base/format.h b/Swiften/Base/format.h
index 0e49eaa..e5696b0 100644
--- a/Swiften/Base/format.h
+++ b/Swiften/Base/format.h
@@ -1,25 +1,26 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
-#include <boost/format.hpp>
 #include <iostream>
 
+#include <boost/format.hpp>
+
 namespace Swift {
-	inline boost::format format(const std::string& s) {
-		using namespace boost::io;
-		try {
-			boost::format fmter(s);
-			fmter.exceptions(no_error_bits);
-			return fmter;
-		}
-		catch (...) {
-			std::cerr << "Error: Invalid translation: " << s << std::endl;
-			throw;
-		}
-	}
+    inline boost::format format(const std::string& s) {
+        using namespace boost::io;
+        try {
+            boost::format fmter(s);
+            fmter.exceptions(no_error_bits);
+            return fmter;
+        }
+        catch (...) {
+            std::cerr << "Error: Invalid translation: " << s << std::endl;
+            throw;
+        }
+    }
 }
diff --git a/Swiften/Base/sleep.cpp b/Swiften/Base/sleep.cpp
index 0f1937b..48eae51 100644
--- a/Swiften/Base/sleep.cpp
+++ b/Swiften/Base/sleep.cpp
@@ -1,25 +1,18 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #include <Swiften/Base/sleep.h>
 
-#include <boost/thread.hpp>
-#include <boost/version.hpp>
+#include <chrono>
+#include <thread>
 
 namespace Swift {
 
 void sleep(unsigned int msecs) {
-	boost::xtime xt;
-#if BOOST_VERSION >= 105000
-	boost::xtime_get(&xt, boost::TIME_UTC_);
-#else
-	boost::xtime_get(&xt, boost::TIME_UTC);
-#endif
-	xt.nsec += msecs*1000000;
-	boost::thread::sleep(xt);
+    std::this_thread::sleep_for(std::chrono::milliseconds(msecs));
 }
 
 }
diff --git a/Swiften/Base/sleep.h b/Swiften/Base/sleep.h
index afcf6c7..744e19f 100644
--- a/Swiften/Base/sleep.h
+++ b/Swiften/Base/sleep.h
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
@@ -9,5 +9,5 @@
 #include <Swiften/Base/API.h>
 
 namespace Swift {
-	SWIFTEN_API void sleep(unsigned int msecs);
+    SWIFTEN_API void sleep(unsigned int msecs);
 }