src/vjournal.cc

   1 //
   2 // \file        vjournal.cc
   3 //              Conversion routines for vjournals (VCALENDAR, etc)
   4 //
   5
   6 /*
   7     Copyright (C) 2008-2009, Nicolas VIVIEN
   8     Copyright (C) 2006-2010, Net Direct Inc. (http://www.netdirect.ca/)
   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 "vjournal.h"
  24 //#include "trace.h"
  25 #include <stdint.h>
  26 #include <glib.h>
  27 #include <strings.h>
  28 #include <sstream>
  29
  30 namespace Barry { namespace Sync {
  31
  32 //////////////////////////////////////////////////////////////////////////////
  33 // vJournal
  34
  35 vJournal::vJournal()
  36         : m_gJournalData(0)
  37 {
  38 }
  39
  40 vJournal::~vJournal()
  41 {
  42         if( m_gJournalData ) {
  43                 g_free(m_gJournalData);
  44         }
  45 }
  46
  47 bool vJournal::HasMultipleVJournals() const
  48 {
  49         int count = 0;
  50         b_VFormat *format = const_cast<b_VFormat*>(Format());
  51         GList *attrs = format ? b_vformat_get_attributes(format) : 0;
  52         for( ; attrs; attrs = attrs->next ) {
  53                 b_VFormatAttribute *attr = (b_VFormatAttribute*) attrs->data;
  54                 if( strcasecmp(b_vformat_attribute_get_name(attr), "BEGIN") == 0 &&
  55                     strcasecmp(b_vformat_attribute_get_nth_value(attr, 0), "VJOURNAL") == 0 )
  56                 {
  57                         count++;
  58                 }
  59         }
  60         return count > 1;
  61 }
  62
  63
  64 // Main conversion routine for converting from Barry::Memo to
  65 // a vJournal string of data.
  66 const std::string& vJournal::ToMemo(const Barry::Memo &memo)
  67 {
  68 //      Trace trace("vJournal::ToMemo");
  69         std::ostringstream oss;
  70         memo.Dump(oss);
  71 //      trace.logf("ToMemo, initial Barry record: %s", oss.str().c_str());
  72
  73         // start fresh
  74         Clear();
  75         SetFormat( b_vformat_new() );
  76         if( !Format() )
  77                 throw ConvertError("resource error allocating vformat");
  78
  79         // store the Barry object we're working with
  80         m_BarryMemo = memo;
  81
  82         // begin building vJournal data
  83         AddAttr(NewAttr("PRODID", "-//OpenSync//NONSGML Barry Memo Record//EN"));
  84         AddAttr(NewAttr("BEGIN", "VJOURNAL"));
  85         AddAttr(NewAttr("SEQUENCE", "0"));
  86         AddAttr(NewAttr("SUMMARY", memo.Title.c_str()));
  87         AddAttr(NewAttr("DESCRIPTION", memo.Body.c_str()));
  88         AddAttr(NewAttr("CATEGORIES", ToStringList(memo.Categories).c_str()));
  89
  90
  91         // FIXME - add a truly globally unique "UID" string?
  92
  93         AddAttr(NewAttr("END", "VJOURNAL"));
  94
  95         // generate the raw VJOURNAL data
  96         m_gJournalData = b_vformat_to_string(Format(), VFORMAT_NOTE);
  97         m_vJournalData = m_gJournalData;
  98
  99 //      trace.logf("ToMemo, resulting vjournal data: %s", m_vJournalData.c_str());
 100         return m_vJournalData;
 101 }
 102
 103 // Main conversion routine for converting from vJournal data string
 104 // to a Barry::Memo object.
 105 const Barry::Memo& vJournal::ToBarry(const char *vjournal, uint32_t RecordId)
 106 {
 107         using namespace std;
 108
 109 //      Trace trace("vJournal::ToBarry");
 110 //      trace.logf("ToBarry, working on vmemo data: %s", vjournal);
 111
 112         // we only handle vJournal data with one vmemo block
 113         if( HasMultipleVJournals() )
 114                 throw ConvertError("vCalendar data contains more than one VJOURNAL block, unsupported");
 115
 116         // start fresh
 117         Clear();
 118
 119         // store the vJournal raw data
 120         m_vJournalData = vjournal;
 121
 122         // create format parser structures
 123         SetFormat( b_vformat_new_from_string(vjournal) );
 124         if( !Format() )
 125                 throw ConvertError("resource error allocating vjournal");
 126
 127         string title = GetAttr("SUMMARY", "/vjournal");
 128 //      trace.logf("SUMMARY attr retrieved: %s", title.c_str());
 129         if( title.size() == 0 ) {
 130                 title = "<blank subject>";
 131 //              trace.logf("ERROR: bad data, blank SUMMARY: %s", vjournal);
 132         }
 133
 134         string body = GetAttr("DESCRIPTION", "/vjournal");
 135 //      trace.logf("DESCRIPTION attr retrieved: %s", body.c_str());
 136
 137
 138         //
 139         // Now, run checks and convert into Barry object
 140         //
 141
 142
 143         Barry::Memo &rec = m_BarryMemo;
 144         rec.SetIds(Barry::Memo::GetDefaultRecType(), RecordId);
 145
 146         rec.Title = title;
 147         rec.Body = body;
 148         rec.Categories = GetValueVector("CATEGORIES","/vjournal");
 149
 150         std::ostringstream oss;
 151         m_BarryMemo.Dump(oss);
 152 //      trace.logf("ToBarry, resulting Barry record: %s", oss.str().c_str());
 153         return m_BarryMemo;
 154 }
 155
 156 // Transfers ownership of m_gMemoData to the caller.
 157 char* vJournal::ExtractVJournal()
 158 {
 159         char *ret = m_gJournalData;
 160         m_gJournalData = 0;
 161         return ret;
 162 }
 163
 164 void vJournal::Clear()
 165 {
 166         vBase::Clear();
 167         m_vJournalData.clear();
 168         m_BarryMemo.Clear();
 169
 170         if( m_gJournalData ) {
 171                 g_free(m_gJournalData);
 172                 m_gJournalData = 0;
 173         }
 174 }
 175
 176 }} // namespace Barry::Sync
 177