opensync-plugin-0.4x/src/vevent.cc

   1 //
   2 // \file        vevent.cc
   3 //              Conversion routines for vevents (VCALENDAR, etc)
   4 //
   5
   6 /*
   7     Copyright (C) 2006-2010, Net Direct Inc. (http://www.netdirect.ca/)
   8
   9     This program is free software; you can redistribute it and/or modify
  10     it under the terms of the GNU General Public License as published by
  11     the Free Software Foundation; either version 2 of the License, or
  12     (at your option) any later version.
  13
  14     This program is distributed in the hope that it will be useful,
  15     but WITHOUT ANY WARRANTY; without even the implied warranty of
  16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  17
  18     See the GNU General Public License in the COPYING file at the
  19     root directory of this project for more details.
  20 */
  21
  22 #include <opensync/opensync.h>
  23 #include <opensync/opensync-time.h>
  24
  25 #include "vevent.h"
  26 #include "environment.h"
  27 #include "trace.h"
  28 #include "tosserror.h"
  29 #include <stdint.h>
  30 #include <glib.h>
  31 #include <strings.h>
  32 #include <sstream>
  33 #include <vector>
  34
  35 using namespace Barry::Sync;
  36
  37 //////////////////////////////////////////////////////////////////////////////
  38 //
  39
  40 VEventConverter::VEventConverter()
  41         : m_Data(0)
  42 {
  43 }
  44
  45 VEventConverter::VEventConverter(uint32_t newRecordId)
  46         : m_Data(0),
  47         m_RecordId(newRecordId)
  48 {
  49 }
  50
  51 VEventConverter::~VEventConverter()
  52 {
  53         if( m_Data )
  54                 g_free(m_Data);
  55 }
  56
  57 // Transfers ownership of m_Data to the caller
  58 char* VEventConverter::ExtractData()
  59 {
  60         Trace trace("VEventConverter::ExtractData");
  61         char *ret = m_Data;
  62         m_Data = 0;
  63         return ret;
  64 }
  65
  66 bool VEventConverter::ParseData(const char *data)
  67 {
  68         Trace trace("VEventConverter::ParseData");
  69
  70         try {
  71
  72                 vTimeConverter vtc;
  73                 vCalendar vcal(vtc);
  74                 m_Cal = vcal.ToBarry(data, m_RecordId);
  75
  76         }
  77         catch( Barry::ConvertError &ce ) {
  78                 trace.logf("ERROR: vevent:Barry::ConvertError exception: %s", ce.what());
  79                 return false;
  80         }
  81
  82         return true;
  83 }
  84
  85 bool VEventConverter::MergeData(const Barry::Calendar &origin)
  86 {
  87         // Save CalendarID value
  88         // CalendarID field is used to link an entry event to an account mail
  89         if (origin.CalendarID != m_Cal.CalendarID)
  90                 m_Cal.CalendarID = origin.CalendarID;
  91
  92         return true;
  93 }
  94
  95 // Barry storage operator
  96 void VEventConverter::operator()(const Barry::Calendar &rec)
  97 {
  98         Trace trace("VEventConverter::operator()");
  99
 100         // Delete data if some already exists
 101         if( m_Data ) {
 102                 g_free(m_Data);
 103                 m_Data = 0;
 104         }
 105
 106         // Keep a trace of Calendar object (need to merge with the new event)
 107         m_Cal = rec;
 108
 109         try {
 110                 vTimeConverter vtc;
 111                 vCalendar vcal(vtc);
 112                 vcal.ToVCal(rec);
 113                 m_Data = vcal.ExtractVCal();
 114
 115         }
 116         catch( Barry::ConvertError &ce ) {
 117                 trace.logf("ERROR: vevent:Barry::ConvertError exception: %s", ce.what());
 118         }
 119 }
 120
 121 // Barry builder operator
 122 bool VEventConverter::operator()(Barry::Calendar &rec, Barry::Builder &)
 123 {
 124         Trace trace("VEventConverter::builder operator()");
 125
 126         rec = m_Cal;
 127         return true;
 128 }
 129
 130 // Handles calling of the Barry::Controller to fetch a specific
 131 // record, indicated by index (into the RecordStateTable).
 132 // Returns a g_malloc'd string of data containing the vevent20
 133 // data.  It is the responsibility of the caller to free it.
 134 // This is intended to be passed into the GetChanges() function.
 135 char* VEventConverter::GetRecordData(BarryEnvironment *env, unsigned int dbId,
 136                                 Barry::RecordStateTable::IndexType index)
 137 {
 138         Trace trace("VEventConverter::GetRecordData()");
 139
 140         using namespace Barry;
 141
 142         VEventConverter cal2event;
 143         RecordParser<Calendar, VEventConverter> parser(cal2event);
 144         env->m_pDesktop->GetRecord(dbId, index, parser);
 145         return cal2event.ExtractData();
 146 }
 147
 148 bool VEventConverter::CommitRecordData(BarryEnvironment *env, unsigned int dbId,
 149         Barry::RecordStateTable::IndexType StateIndex, uint32_t recordId,
 150         const char *data, bool add, std::string &errmsg)
 151 {
 152         Trace trace("VEventConverter::CommitRecordData()");
 153
 154         uint32_t newRecordId;
 155         if( add ) {
 156                 // use given id if possible
 157                 if( recordId && !env->m_CalendarSync.m_Table.GetIndex(recordId) ) {
 158                         // recordId is unique and non-zero
 159                         newRecordId = recordId;
 160                 }
 161                 else {
 162                         trace.log("Can't use recommended recordId, generating new one.");
 163                         newRecordId = env->m_CalendarSync.m_Table.MakeNewRecordId();
 164                 }
 165         }
 166         else {
 167                 newRecordId = env->m_CalendarSync.m_Table.StateMap[StateIndex].RecordId;
 168         }
 169         trace.logf("newRecordId: %u", newRecordId);
 170
 171         VEventConverter convert(newRecordId);
 172         if( !convert.ParseData(data) ) {
 173                 std::ostringstream oss;
 174                 oss << "unable to parse change data for new RecordId: "
 175                     << newRecordId << " data: " << data;
 176                 errmsg = oss.str();
 177                 trace.log(errmsg.c_str());
 178                 return false;
 179         }
 180
 181         // If we modify a data, we read at first its current value
 182         // then we merge with the parsed value from the other opensync member
 183         // Merge function is important because, we have to save some BlackBerry fields.
 184         // Fix an issue with the new OS release who supports several calendar.
 185         if( !add ) {
 186                 using namespace Barry;
 187
 188                 VEventConverter cal2event;
 189                 RecordParser<Calendar, VEventConverter> parser(cal2event);
 190                 env->m_pDesktop->GetRecord(dbId, StateIndex, parser);
 191
 192                 convert.MergeData(cal2event.GetCalendar());
 193         }
 194
 195         Barry::RecordBuilder<Barry::Calendar, VEventConverter> builder(convert);
 196
 197         if( add ) {
 198                 trace.log("adding record");
 199                 env->m_pDesktop->AddRecord(dbId, builder);
 200         }
 201         else {
 202                 trace.log("setting record");
 203                 env->m_pDesktop->SetRecord(dbId, StateIndex, builder);
 204                 trace.log("clearing dirty flag");
 205                 env->m_pDesktop->ClearDirty(dbId, StateIndex);
 206         }
 207
 208         return true;
 209 }
 210