src/r_memo.cc

   1 ///
   2 /// \file       r_memo.cc
   3 ///             Record parsing class for the memo database.
   4 ///
   5
   6 /*
   7     Copyright (C) 2005-2011, Net Direct Inc. (http://www.netdirect.ca/)
   8     Copyright (C) 2007, Brian Edginton
   9
  10     This program is free software; you can redistribute it and/or modify
  11     it under the terms of the GNU General Public License as published by
  12     the Free Software Foundation; either version 2 of the License, or
  13     (at your option) any later version.
  14
  15     This program is distributed in the hope that it will be useful,
  16     but WITHOUT ANY WARRANTY; without even the implied warranty of
  17     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  18
  19     See the GNU General Public License in the COPYING file at the
  20     root directory of this project for more details.
  21 */
  22
  23 #include "r_memo.h"
  24 #include "record-internal.h"
  25 #include "protostructs.h"
  26 #include "data.h"
  27 #include "time.h"
  28 #include "iconv.h"
  29 #include <ostream>
  30 #include <iomanip>
  31 #include "ios_state.h"
  32
  33 using namespace std;
  34 using namespace Barry::Protocol;
  35
  36 namespace Barry {
  37
  38 ///////////////////////////////////////////////////////////////////////////////
  39 // Memo Class
  40
  41 // Memo Field Codes
  42 #define MEMFC_TITLE             0x01
  43 #define MEMFC_BODY              0x02
  44 #define MEMFC_MEMO_TYPE         0x03
  45 #define MEMFC_CATEGORY          0x04
  46 #define MEMFC_END               0xffff
  47
  48 static FieldLink<Memo> MemoFieldLinks[] = {
  49     { MEMFC_TITLE,     "Title",       0, 0, &Memo::Title, 0, 0, 0, 0, true },
  50     { MEMFC_BODY,      "Body",        0, 0, &Memo::Body, 0, 0, 0, 0, true },
  51     { MEMFC_END,       "End of List", 0, 0, 0, 0, 0, 0, 0, false }
  52 };
  53
  54 Memo::Memo()
  55 {
  56         Clear();
  57 }
  58
  59 Memo::~Memo()
  60 {
  61 }
  62
  63 const unsigned char* Memo::ParseField(const unsigned char *begin,
  64                                       const unsigned char *end,
  65                                       const IConverter *ic)
  66 {
  67         const CommonField *field = (const CommonField *) begin;
  68
  69         // advance and check size
  70         begin += COMMON_FIELD_HEADER_SIZE + btohs(field->size);
  71         if( begin > end )       // if begin==end, we are ok
  72                 return begin;
  73
  74         if( !btohs(field->size) )   // if field has no size, something's up
  75                 return begin;
  76
  77         if( field->type == MEMFC_MEMO_TYPE ) {
  78                 if( field->u.raw[0] != 'm' ) {
  79                         throw Error( "Memo::ParseField: MemoType is not 'm'" );
  80                 }
  81                 return begin;
  82         }
  83
  84
  85         // cycle through the type table
  86         for(    FieldLink<Memo> *b = MemoFieldLinks;
  87                 b->type != MEMFC_END;
  88                 b++ )
  89         {
  90                 if( b->type == field->type ) {
  91                         if( b->strMember ) {
  92                                 std::string &s = this->*(b->strMember);
  93                                 s = ParseFieldString(field);
  94                                 if( b->iconvNeeded && ic )
  95                                         s = ic->FromBB(s);
  96                                 return begin;   // done!
  97                         }
  98                         else if( b->timeMember && btohs(field->size) == 4 ) {
  99                                 time_t &t = this->*(b->timeMember);
 100                                 t = min2time(field->u.min1900);
 101                                 return begin;
 102                         }
 103                 }
 104         }
 105         // handle special cases
 106         switch( field->type )
 107         {
 108         case MEMFC_CATEGORY:
 109                 {
 110                         std::string catstring = ParseFieldString(field);
 111                         if( ic )
 112                                 catstring = ic->FromBB(catstring);
 113                         Categories.CategoryStr2List(catstring);
 114                 }
 115                 return begin;
 116         }
 117
 118         // if still not handled, add to the Unknowns list
 119         UnknownField uf;
 120         uf.type = field->type;
 121         uf.data.assign((const char*)field->u.raw, btohs(field->size));
 122         Unknowns.push_back(uf);
 123
 124         // return new pointer for next field
 125         return begin;
 126 }
 127
 128 void Memo::ParseHeader(const Data &data, size_t &offset)
 129 {
 130         // no header in Memo records
 131 }
 132
 133 void Memo::ParseFields(const Data &data, size_t &offset, const IConverter *ic)
 134 {
 135         const unsigned char *finish = ParseCommonFields(*this,
 136                 data.GetData() + offset, data.GetData() + data.GetSize(), ic);
 137         offset += finish - (data.GetData() + offset);
 138 }
 139
 140
 141 void Memo::BuildHeader(Data &data, size_t &offset) const
 142 {
 143         // no header in Memo records
 144 }
 145
 146
 147 //
 148 // Build
 149 //
 150 /// Build fields part of record.
 151 ///
 152 void Memo::BuildFields(Data &data, size_t &offset, const IConverter *ic) const
 153 {
 154         data.Zap();
 155
 156         // tack on the 'm' memo type field first
 157         BuildField(data, offset, MEMFC_MEMO_TYPE, 'm');
 158
 159         // Categories
 160         if( Categories.size() ) {
 161                 string store;
 162                 Categories.CategoryList2Str(store);
 163                 BuildField(data, offset, MEMFC_CATEGORY, ic ? ic->ToBB(store) : store);
 164         }
 165
 166         // cycle through the type table
 167         for(    FieldLink<Memo> *b = MemoFieldLinks;
 168                 b->type != MEMFC_END;
 169                 b++ )
 170         {
 171                 // print only fields with data
 172                 if( b->strMember ) {
 173                         const std::string &field = this->*(b->strMember);
 174                         if( field.size() ) {
 175                                 std::string s = (b->iconvNeeded && ic) ? ic->ToBB(field) : field;
 176                                 BuildField(data, offset, b->type, s);
 177                         }
 178                 }
 179                 else if( b->postMember && b->postField ) {
 180                         const std::string &field = (this->*(b->postMember)).*(b->postField);
 181                         if( field.size() ) {
 182                                 std::string s = (b->iconvNeeded && ic) ? ic->ToBB(field) : field;
 183                                 BuildField(data, offset, b->type, s);
 184                         }
 185                 }
 186         }
 187
 188         // and finally save unknowns
 189         UnknownsType::const_iterator
 190                 ub = Unknowns.begin(), ue = Unknowns.end();
 191         for( ; ub != ue; ub++ ) {
 192                 BuildField(data, offset, *ub);
 193         }
 194
 195         data.ReleaseBuffer(offset);
 196 }
 197
 198
 199
 200 void Memo::Dump(std::ostream &os) const
 201 {
 202         ios_format_state state(os);
 203
 204         os << "Memo entry: 0x" << setbase(16) << RecordId
 205            << " (" << (unsigned int)RecType << ")\n";
 206         os << "    Title: " << Title << "\n";
 207         os << "    Body: ";
 208
 209         // The Body may have '\r' characters... translate them
 210         // in the output to make it look more pretty
 211         for( string::const_iterator i = Body.begin(); i != Body.end(); ++i ) {
 212                 if( *i == '\r' )
 213                         os << "\n          ";
 214                 else
 215                         os << *i;
 216         }
 217         os << "\n";
 218
 219         if( Categories.size() ) {
 220                 string display;
 221                 Categories.CategoryList2Str(display);
 222                 os << "    Categories: " << display << "\n";
 223         }
 224
 225         os << Unknowns;
 226         os << "\n\n";
 227 }
 228
 229 bool Memo::operator<(const Memo &other) const
 230 {
 231         int cmp = Title.compare(other.Title);
 232         if( cmp == 0 )
 233                 cmp = Body.compare(other.Body);
 234         return cmp < 0;
 235 }
 236
 237 void Memo::Clear()
 238 {
 239         RecType = GetDefaultRecType();
 240         RecordId = 0;
 241
 242         Title.clear();
 243         Body.clear();
 244         Categories.clear();
 245
 246         Unknowns.clear();
 247 }
 248
 249 std::string Memo::GetDescription() const
 250 {
 251         return Title;
 252 }
 253
 254 } // namespace Barry
 255