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/*
WhatsAppWeb plugin for Miranda NG
Copyright © 2019-22 George Hazan
*/
#define DICT_VERSION 2
#define LIST_EMPTY 0
#define STREAM_END 2
#define DICTIONARY_0 236
#define DICTIONARY_1 237
#define DICTIONARY_2 238
#define DICTIONARY_3 239
#define LIST_8 248
#define LIST_16 249
#define JID_PAIR 250
#define HEX_8 251
#define BINARY_8 252
#define BINARY_20 253
#define BINARY_32 254
#define NIBBLE_8 255
class WANode // kinda XML
{
friend class WAWriter;
struct Attr
{
Attr(const char *pszName, const char *pszValue) :
name(pszName),
value(pszValue)
{}
CMStringA name, value;
};
std::list<Attr*> attrs;
public:
WANode();
~WANode();
void addAttr(const char *pszName, const char *pszValue);
CMStringA getAttr(const char *pszFieldValue) const;
void print(CMStringA &dest, int level = 0) const;
CMStringA title;
MBinBuffer content;
std::list<WANode*> children;
};
class WAReader
{
const BYTE *m_buf, *m_limit;
uint32_t readIntN(int i);
CMStringA readStringFromChars(int size);
__forceinline uint32_t readInt8() { return readIntN(1); }
__forceinline uint32_t readInt16() { return readIntN(2); }
__forceinline uint32_t readInt32() { return readIntN(4); }
bool readAttributes(WANode *node, int count);
uint32_t readInt20();
bool readList(WANode *pParent, int tag);
int readListSize(int tag);
CMStringA readPacked(int tag);
CMStringA readString(int tag);
public:
WAReader(const void *buf, size_t cbLen) :
m_buf((BYTE*)buf),
m_limit((BYTE*)buf + cbLen)
{}
WANode* readNode();
};
class WAWriter
{
__forceinline void writeInt8(int value) { writeIntN(value, 1); }
__forceinline void writeInt16(int value) { writeIntN(value, 2); }
__forceinline void writeInt32(int value) { writeIntN(value, 4); }
void writeByte(uint8_t b);
void writeIntN(int value, int i);
void writeInt20(int value);
void writeLength(int value);
void writeListSize(int tag);
void writePacked(const CMStringA &str);
void writeString(const char *str, bool bRaw = false);
bool writeToken(const char *str);
public:
void writeNode(const WANode *pNode);
MBinBuffer body;
};
/////////////////////////////////////////////////////////////////////////////////////////
std::string encodeBigEndian(uint32_t num, size_t len = sizeof(uint32_t));
void generateIV(uint8_t *iv, int &pVar);
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