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368 lines
12 KiB
C++
368 lines
12 KiB
C++
#ifndef __AMF3__H__
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#define __AMF3__H__
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#include "dCommonVars.h"
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#include "dLogger.h"
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#include "Game.h"
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#include <unordered_map>
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#include <vector>
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enum class eAmf : uint8_t {
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Undefined = 0x00, // An undefined AMF Value
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Null = 0x01, // A null AMF value
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False = 0x02, // A false AMF value
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True = 0x03, // A true AMF value
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Integer = 0x04, // An integer AMF value
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Double = 0x05, // A double AMF value
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String = 0x06, // A string AMF value
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XMLDoc = 0x07, // Unused in the live client and cannot be serialized without modification. An XML Doc AMF value
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Date = 0x08, // Unused in the live client and cannot be serialized without modification. A date AMF value
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Array = 0x09, // An array AMF value
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Object = 0x0A, // Unused in the live client and cannot be serialized without modification. An object AMF value
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XML = 0x0B, // Unused in the live client and cannot be serialized without modification. An XML AMF value
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ByteArray = 0x0C, // Unused in the live client and cannot be serialized without modification. A byte array AMF value
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VectorInt = 0x0D, // Unused in the live client and cannot be serialized without modification. An integer vector AMF value
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VectorUInt = 0x0E, // Unused in the live client and cannot be serialized without modification. An unsigned integer AMF value
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VectorDouble = 0x0F, // Unused in the live client and cannot be serialized without modification. A double vector AMF value
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VectorObject = 0x10, // Unused in the live client and cannot be serialized without modification. An object vector AMF value
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Dictionary = 0x11 // Unused in the live client and cannot be serialized without modification. A dictionary AMF value
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};
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class AMFBaseValue {
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public:
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virtual eAmf GetValueType() { return eAmf::Undefined; };
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AMFBaseValue() {};
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virtual ~AMFBaseValue() {};
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};
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template<typename ValueType>
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class AMFValue : public AMFBaseValue {
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public:
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AMFValue() {};
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AMFValue(ValueType value) { SetValue(value); };
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virtual ~AMFValue() override {};
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eAmf GetValueType() override { return eAmf::Undefined; };
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const ValueType& GetValue() { return data; };
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void SetValue(ValueType value) { data = value; };
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protected:
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ValueType data;
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};
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// As a string this is much easier to write and read from a BitStream.
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template<>
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class AMFValue<const char*> : public AMFBaseValue {
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public:
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AMFValue() {};
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AMFValue(const char* value) { SetValue(std::string(value)); };
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virtual ~AMFValue() override {};
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eAmf GetValueType() override { return eAmf::String; };
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const std::string& GetValue() { return data; };
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void SetValue(std::string value) { data = value; };
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protected:
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std::string data;
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};
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typedef AMFValue<std::nullptr_t> AMFNullValue;
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typedef AMFValue<bool> AMFBoolValue;
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typedef AMFValue<int32_t> AMFIntValue;
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typedef AMFValue<std::string> AMFStringValue;
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typedef AMFValue<double> AMFDoubleValue;
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template<> inline eAmf AMFValue<std::nullptr_t>::GetValueType() { return eAmf::Null; };
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template<> inline eAmf AMFValue<bool>::GetValueType() { return this->data ? eAmf::True : eAmf::False; };
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template<> inline eAmf AMFValue<int32_t>::GetValueType() { return eAmf::Integer; };
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template<> inline eAmf AMFValue<uint32_t>::GetValueType() { return eAmf::Integer; };
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template<> inline eAmf AMFValue<std::string>::GetValueType() { return eAmf::String; };
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template<> inline eAmf AMFValue<double>::GetValueType() { return eAmf::Double; };
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/**
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* The AMFArrayValue object holds 2 types of lists:
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* An associative list where a key maps to a value
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* A Dense list where elements are stored back to back
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*
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* Objects that are Registered are owned by this object
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* and are not to be deleted by a caller.
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*/
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class AMFArrayValue : public AMFBaseValue {
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typedef std::unordered_map<std::string, AMFBaseValue*> AMFAssociative;
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typedef std::vector<AMFBaseValue*> AMFDense;
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public:
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eAmf GetValueType() override { return eAmf::Array; };
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~AMFArrayValue() override {
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for (auto valueToDelete : GetDense()) {
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if (valueToDelete) {
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delete valueToDelete;
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valueToDelete = nullptr;
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}
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}
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for (auto valueToDelete : GetAssociative()) {
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if (valueToDelete.second) {
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delete valueToDelete.second;
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valueToDelete.second = nullptr;
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}
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}
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};
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/**
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* Returns the Associative portion of the object
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*/
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inline AMFAssociative& GetAssociative() { return this->associative; };
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/**
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* Returns the dense portion of the object
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*/
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inline AMFDense& GetDense() { return this->dense; };
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/**
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* Inserts an AMFValue into the associative portion with the given key.
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* If a duplicate is attempted to be inserted, it is ignored and the
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* first value with that key is kept in the map.
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*
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* These objects are not to be deleted by the caller as they are owned by
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* the AMFArray object which manages its own memory.
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*
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* @param key The key to associate with the value
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* @param value The value to insert
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*
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* @return The inserted element if the type matched,
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* or nullptr if a key existed and was not the same type
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*/
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template<typename ValueType>
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std::pair<AMFValue<ValueType>*, bool> Insert(const std::string& key, ValueType value) {
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auto element = associative.find(key);
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AMFValue<ValueType>* val = nullptr;
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bool found = true;
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if (element == associative.end()) {
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val = new AMFValue<ValueType>(value);
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associative.insert(std::make_pair(key, val));
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} else {
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val = dynamic_cast<AMFValue<ValueType>*>(element->second);
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found = false;
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}
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return std::make_pair(val, found);
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};
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// Associates an array with a string key
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std::pair<AMFBaseValue*, bool> Insert(const std::string& key) {
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auto element = associative.find(key);
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AMFArrayValue* val = nullptr;
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bool found = true;
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if (element == associative.end()) {
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val = new AMFArrayValue();
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associative.insert(std::make_pair(key, val));
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} else {
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val = dynamic_cast<AMFArrayValue*>(element->second);
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found = false;
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}
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return std::make_pair(val, found);
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};
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// Associates an array with an integer key
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std::pair<AMFBaseValue*, bool> Insert(const uint32_t& index) {
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AMFArrayValue* val = nullptr;
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bool inserted = false;
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if (index >= dense.size()) {
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dense.resize(index + 1);
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val = new AMFArrayValue();
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dense.at(index) = val;
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inserted = true;
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}
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return std::make_pair(dynamic_cast<AMFArrayValue*>(dense.at(index)), inserted);
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};
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/**
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* @brief Inserts an AMFValue into the AMFArray key'd by index.
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* Attempting to insert the same key to the same value twice overwrites
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* the previous value with the new one.
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*
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* @param index The index to associate with the value
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* @param value The value to insert
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* @return The inserted element, or nullptr if the type did not match
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* what was at the index.
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*/
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template<typename ValueType>
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std::pair<AMFValue<ValueType>*, bool> Insert(const uint32_t& index, ValueType value) {
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AMFValue<ValueType>* val = nullptr;
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bool inserted = false;
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if (index >= this->dense.size()) {
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this->dense.resize(index + 1);
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val = new AMFValue<ValueType>(value);
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this->dense.at(index) = val;
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inserted = true;
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}
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return std::make_pair(dynamic_cast<AMFValue<ValueType>*>(this->dense.at(index)), inserted);
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};
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/**
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* Inserts an AMFValue into the associative portion with the given key.
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* If a duplicate is attempted to be inserted, it replaces the original
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*
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* The inserted element is now owned by this object and is not to be deleted
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*
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* @param key The key to associate with the value
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* @param value The value to insert
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*/
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void Insert(const std::string& key, AMFBaseValue* value) {
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auto element = associative.find(key);
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if (element != associative.end() && element->second) {
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delete element->second;
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element->second = value;
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} else {
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associative.insert(std::make_pair(key, value));
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}
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};
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/**
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* Inserts an AMFValue into the associative portion with the given index.
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* If a duplicate is attempted to be inserted, it replaces the original
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*
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* The inserted element is now owned by this object and is not to be deleted
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*
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* @param key The key to associate with the value
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* @param value The value to insert
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*/
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void Insert(const uint32_t index, AMFBaseValue* value) {
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if (index < dense.size()) {
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AMFDense::iterator itr = dense.begin() + index;
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if (*itr) delete dense.at(index);
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} else {
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dense.resize(index + 1);
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}
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dense.at(index) = value;
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};
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/**
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* Pushes an AMFValue into the back of the dense portion.
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*
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* These objects are not to be deleted by the caller as they are owned by
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* the AMFArray object which manages its own memory.
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*
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* @param value The value to insert
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*
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* @return The inserted pointer, or nullptr should the key already be in use.
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*/
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template<typename ValueType>
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inline AMFValue<ValueType>* Push(ValueType value) {
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return Insert(this->dense.size(), value).first;
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};
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/**
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* Removes the key from the associative portion
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*
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* The pointer removed is now no longer managed by this container
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*
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* @param key The key to remove from the associative portion
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*/
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void Remove(const std::string& key, bool deleteValue = true) {
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AMFAssociative::iterator it = this->associative.find(key);
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if (it != this->associative.end()) {
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if (deleteValue) delete it->second;
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this->associative.erase(it);
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}
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}
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/**
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* Pops the last element in the dense portion, deleting it in the process.
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*/
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void Remove(const uint32_t index) {
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if (!this->dense.empty() && index < this->dense.size()) {
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auto itr = this->dense.begin() + index;
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if (*itr) delete (*itr);
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this->dense.erase(itr);
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}
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}
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void Pop() {
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if (!this->dense.empty()) Remove(this->dense.size() - 1);
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}
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AMFArrayValue* GetArray(const std::string& key) {
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AMFAssociative::const_iterator it = this->associative.find(key);
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if (it != this->associative.end()) {
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return dynamic_cast<AMFArrayValue*>(it->second);
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}
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return nullptr;
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};
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AMFArrayValue* GetArray(const uint32_t index) {
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return index >= this->dense.size() ? nullptr : dynamic_cast<AMFArrayValue*>(this->dense.at(index));
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};
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inline AMFArrayValue* InsertArray(const std::string& key) {
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return static_cast<AMFArrayValue*>(Insert(key).first);
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};
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inline AMFArrayValue* InsertArray(const uint32_t index) {
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return static_cast<AMFArrayValue*>(Insert(index).first);
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};
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inline AMFArrayValue* PushArray() {
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return static_cast<AMFArrayValue*>(Insert(this->dense.size()).first);
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};
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/**
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* Gets an AMFValue by the key from the associative portion and converts it
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* to the AmfValue template type. If the key did not exist, it is inserted.
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*
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* @tparam The target object type
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* @param key The key to lookup
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*
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* @return The AMFValue
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*/
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template <typename AmfType>
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AMFValue<AmfType>* Get(const std::string& key) const {
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AMFAssociative::const_iterator it = this->associative.find(key);
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return it != this->associative.end() ?
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dynamic_cast<AMFValue<AmfType>*>(it->second) :
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nullptr;
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};
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// Get from the array but dont cast it
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AMFBaseValue* Get(const std::string& key) const {
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AMFAssociative::const_iterator it = this->associative.find(key);
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return it != this->associative.end() ? it->second : nullptr;
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};
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/**
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* @brief Get an AMFValue object at a position in the dense portion.
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* Gets an AMFValue by the index from the dense portion and converts it
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* to the AmfValue template type. If the index did not exist, it is inserted.
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*
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* @tparam The target object type
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* @param index The index to get
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* @return The casted object, or nullptr.
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*/
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template <typename AmfType>
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AMFValue<AmfType>* Get(uint32_t index) const {
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return index < this->dense.size() ?
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dynamic_cast<AMFValue<AmfType>*>(this->dense.at(index)) :
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nullptr;
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};
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// Get from the dense but dont cast it
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AMFBaseValue* Get(const uint32_t index) const {
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return index < this->dense.size() ? this->dense.at(index) : nullptr;
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};
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private:
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/**
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* The associative portion. These values are key'd with strings to an AMFValue.
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*/
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AMFAssociative associative;
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/**
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* The dense portion. These AMFValue's are stored one after
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* another with the most recent addition being at the back.
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*/
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AMFDense dense;
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};
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#endif //!__AMF3__H__
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