src/Tag.h

   1 //
   2 // This file is part of the aMule Project.
   3 //
   4 // Copyright (c) 2003-2008 aMule Team ( admin@amule.org / http://www.amule.org )
   5 // Copyright (c) 2002-2008 Merkur ( devs@emule-project.net / http://www.emule-project.net )
   6 //
   7 // Any parts of this program derived from the xMule, lMule or eMule project,
   8 // or contributed by third-party developers are copyrighted by their
   9 // respective authors.
  10 //
  11 // This program is free software; you can redistribute it and/or modify
  12 // it under the terms of the GNU General Public License as published by
  13 // the Free Software Foundation; either version 2 of the License, or
  14 // (at your option) any later version.
  15 //
  16 // This program is distributed in the hope that it will be useful,
  17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 // GNU General Public License for more details.
  20 //
  21 // You should have received a copy of the GNU General Public License
  22 // along with this program; if not, write to the Free Software
  23 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
  24 //
  25
  26 #ifndef TAG_H
  27 #define TAG_H
  28
  29
  30 #include <common/StringFunctions.h>     // Needed for EUtf8Str
  31
  32 #include <tags/TagTypes.h>
  33
  34 #include "OtherFunctions.h"
  35
  36 class CMD4Hash;
  37 class CFileDataIO;
  38
  39 ///////////////////////////////////////////////////////////////////////////////
  40 // CTag
  41
  42 class CTag
  43 {
  44 public:
  45         CTag(const CTag& rTag);
  46         CTag(const CFileDataIO& data, bool bOptUTF8);
  47         virtual ~CTag();
  48         CTag& operator=(const CTag&);
  49
  50         uint8 GetType() const           { return m_uType; }
  51         uint8 GetNameID() const         { return m_uName; }
  52         const wxString& GetName() const { return m_Name; }
  53
  54         bool IsStr() const              { return m_uType == TAGTYPE_STRING; }
  55         bool IsInt() const              { return
  56                 (m_uType == TAGTYPE_UINT64) ||
  57                 (m_uType == TAGTYPE_UINT32) ||
  58                 (m_uType == TAGTYPE_UINT16) ||
  59                 (m_uType == TAGTYPE_UINT8); }
  60         bool IsFloat() const            { return m_uType == TAGTYPE_FLOAT32; }
  61         bool IsHash() const             { return m_uType == TAGTYPE_HASH16; }
  62         bool IsBlob() const             { return m_uType == TAGTYPE_BLOB; }
  63         bool IsBsob() const             { return m_uType == TAGTYPE_BSOB; }
  64
  65         uint64 GetInt() const;
  66
  67         const wxString& GetStr() const;
  68
  69         float GetFloat() const;
  70
  71         const CMD4Hash& GetHash() const;
  72
  73         const byte* GetBlob() const;
  74         uint32 GetBlobSize() const;
  75
  76         const byte* GetBsob() const;
  77         uint32 GetBsobSize() const;
  78
  79         CTag* CloneTag()                { return new CTag(*this); }
  80
  81         bool WriteTagToFile(CFileDataIO* file,
  82                 EUtf8Str eStrEncode = utf8strNone,
  83                 bool restrictive = true) const;                 // old eD2K tags
  84         bool WriteNewEd2kTag(CFileDataIO* file,
  85                 EUtf8Str eStrEncode = utf8strNone) const;       // new eD2K tags
  86
  87         wxString GetFullInfo() const;
  88
  89 protected:
  90         CTag(const wxString& Name);
  91         CTag(uint8 uName);
  92
  93         uint8   m_uType;
  94         union {
  95                 CMD4Hash*       m_hashVal;
  96                 wxString*       m_pstrVal;
  97                 uint64          m_uVal;
  98                 float           m_fVal;
  99                 unsigned char*  m_pData;
 100         };
 101
 102         uint32          m_nSize;
 103
 104 private:
 105         uint8           m_uName;
 106         wxString        m_Name;
 107
 108 };
 109
 110 typedef std::list<CTag*> TagPtrList;
 111
 112 class CTagIntSized : public CTag
 113 {
 114 public:
 115         CTagIntSized(const wxString& name, uint64 value, uint8 bitsize)
 116                 : CTag(name) {
 117                         Init(value, bitsize);
 118                 }
 119
 120         CTagIntSized(uint8 name, uint64 value, uint8 bitsize)
 121                 : CTag(name) {
 122                         Init(value, bitsize);
 123                 }
 124
 125 protected:
 126         CTagIntSized(const wxString& name) : CTag(name) {}
 127         CTagIntSized(uint8 name) : CTag(name) {}
 128
 129         void Init(uint64 value, uint8 bitsize) {
 130                         switch (bitsize) {
 131                                 case 64:
 132                                         wxASSERT(value <= ULONGLONG(0xFFFFFFFFFFFFFFFF));
 133                                         m_uVal = value;
 134                                         m_uType = TAGTYPE_UINT64;
 135                                         break;
 136                                 case 32:
 137                                         wxASSERT(value <= 0xFFFFFFFF);
 138                                         m_uVal = value;
 139                                         m_uType = TAGTYPE_UINT32;
 140                                         break;
 141                                 case 16:
 142                                         wxASSERT(value <= 0xFFFF);
 143                                         m_uVal = value;
 144                                         m_uType = TAGTYPE_UINT16;
 145                                         break;
 146                                 case 8:
 147                                         wxASSERT(value <= 0xFF);
 148                                         m_uVal = value;
 149                                         m_uType = TAGTYPE_UINT8;
 150                                         break;
 151                                 default:
 152                                         throw wxString(wxT("Invalid bitsize on int tag"));
 153                         }
 154         }
 155 };
 156
 157 class CTagVarInt : public CTagIntSized
 158 {
 159 public:
 160         CTagVarInt(const wxString& name, uint64 value, uint8 forced_bits = 0)
 161                 : CTagIntSized(name) {
 162                         SizedInit(value, forced_bits);
 163                 }
 164         CTagVarInt(uint8 name, uint64 value, uint8 forced_bits = 0)
 165                 : CTagIntSized(name) {
 166                         SizedInit(value, forced_bits);
 167                 }
 168 private:
 169         void SizedInit(uint64 value, uint8 forced_bits) {
 170                 if (forced_bits) {
 171                         // The bitsize was forced.
 172                         Init(value,forced_bits);
 173                 } else {
 174                         m_uVal = value;
 175                         if (value <= 0xFF) {
 176                                 m_uType = TAGTYPE_UINT8;
 177                         } else if (value <= 0xFFFF) {
 178                                 m_uType = TAGTYPE_UINT16;
 179                         } else if (value <= 0xFFFFFFFF) {
 180                                 m_uType = TAGTYPE_UINT32;
 181                         } else {
 182                                 m_uType = TAGTYPE_UINT64;
 183                         }
 184                 }
 185         }
 186 };
 187
 188 class CTagInt64 : public CTagIntSized
 189 {
 190 public:
 191         CTagInt64(const wxString& name, uint64 value)
 192                 : CTagIntSized(name, value, 64) {       }
 193
 194         CTagInt64(uint8 name, uint64 value)
 195                 : CTagIntSized(name, value, 64) { }
 196 };
 197
 198 class CTagInt32 : public CTagIntSized
 199 {
 200 public:
 201         CTagInt32(const wxString& name, uint64 value)
 202                 : CTagIntSized(name, value, 32) {       }
 203
 204         CTagInt32(uint8 name, uint64 value)
 205                 : CTagIntSized(name, value, 32) { }
 206 };
 207
 208 class CTagInt16 : public CTagIntSized
 209 {
 210 public:
 211         CTagInt16(const wxString& name, uint64 value)
 212                 : CTagIntSized(name, value, 16) {       }
 213
 214         CTagInt16(uint8 name, uint64 value)
 215                 : CTagIntSized(name, value, 16) { }
 216 };
 217
 218 class CTagInt8 : public CTagIntSized
 219 {
 220 public:
 221         CTagInt8(const wxString& name, uint64 value)
 222                 : CTagIntSized(name, value, 8) {        }
 223
 224         CTagInt8(uint8 name, uint64 value)
 225                 : CTagIntSized(name, value, 8) { }
 226 };
 227
 228 class CTagFloat : public CTag
 229 {
 230 public:
 231         CTagFloat(const wxString& name, float value)
 232                 : CTag(name) {
 233                         m_fVal = value;
 234                         m_uType = TAGTYPE_FLOAT32;
 235                 }
 236
 237         CTagFloat(uint8 name, float value)
 238                 : CTag(name) {
 239                         m_fVal = value;
 240                         m_uType = TAGTYPE_FLOAT32;
 241                 }
 242 };
 243
 244 class CTagString : public CTag
 245 {
 246 public:
 247         CTagString(const wxString& name, const wxString& value)
 248                 : CTag(name) {
 249                         m_pstrVal = new wxString(value);
 250                         m_uType = TAGTYPE_STRING;
 251                 }
 252
 253         CTagString(uint8 name, const wxString& value)
 254                 : CTag(name) {
 255                         m_pstrVal = new wxString(value);
 256                         m_uType = TAGTYPE_STRING;
 257                 }
 258 };
 259
 260 class CTagHash : public CTag
 261 {
 262 public:
 263         // Implementation on .cpp to allow forward declaration of CMD4Hash
 264         CTagHash(const wxString& name, const CMD4Hash& value);
 265         CTagHash(uint8 name, const CMD4Hash& value);
 266 };
 267
 268 class CTagBsob : public CTag
 269 {
 270 public:
 271         CTagBsob(const wxString& name, const byte* value, uint8 nSize)
 272                 : CTag(name)
 273         {
 274                 m_uType = TAGTYPE_BSOB;
 275                 m_pData = new byte[nSize];
 276                 memcpy(m_pData, value, nSize);
 277                 m_nSize = nSize;
 278         }
 279 };
 280
 281 class CTagBlob : public CTag
 282 {
 283 public:
 284         CTagBlob(const wxString& name, const byte* value, uint8 nSize)
 285                 : CTag(name)
 286         {
 287                 m_uType = TAGTYPE_BLOB;
 288                 m_pData = new byte[nSize];
 289                 memcpy(m_pData, value, nSize);
 290                 m_nSize = nSize;
 291         }
 292 };
 293
 294 void deleteTagPtrListEntries(TagPtrList* taglist);
 295
 296 #endif // TAG_H
 297 // File_checked_for_headers