opensync-plugin/src/vevent.h

   1 //
   2 // \file        vevent.h
   3 //              Conversion routines for vevents (VCALENDAR, etc)
   4 //
   5
   6 /*
   7     Copyright (C) 2006-2008, 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 #ifndef __BARRY_SYNC_VEVENT_H__
  23 #define __BARRY_SYNC_VEVENT_H__
  24
  25 #include <barry/barry.h>
  26 #include <stdint.h>
  27 #include <string>
  28 #include "vbase.h"
  29 #include "vformat.h"
  30
  31 // forward declarations
  32 class BarryEnvironment;
  33
  34 //
  35 // vCalendar
  36 //
  37 /// Class for converting between RFC 2445 iCalendar data format,
  38 /// and the Barry::Calendar class.
  39 ///
  40 class vCalendar : public vBase
  41 {
  42         // data to pass to external requests
  43         char *m_gCalData;       // dynamic memory returned by vformat()... can
  44                                 // be used directly by the plugin, without
  45                                 // overmuch allocation and freeing (see Extract())
  46         std::string m_vCalData; // copy of m_gCalData, for C++ use
  47         Barry::Calendar m_BarryCal;
  48
  49         static const char *WeekDays[7];
  50
  51 protected:
  52         void RecurToVCal();
  53         void RecurToBarryCal();
  54
  55         static unsigned short GetWeekDayIndex(const char *dayname);
  56         bool HasMultipleVEvents() const;
  57
  58 public:
  59         vCalendar();
  60         ~vCalendar();
  61
  62         const std::string&      ToVCal(const Barry::Calendar &cal);
  63         const Barry::Calendar&  ToBarry(const char *vcal, uint32_t RecordId);
  64
  65         const std::string&      GetVCal() const { return m_vCalData; }
  66         const Barry::Calendar&  GetBarryCal() const { return m_BarryCal; }
  67
  68         char* ExtractVCal();
  69
  70         void Clear();
  71 };
  72
  73
  74 class VEventConverter
  75 {
  76         char *m_Data;
  77         Barry::Calendar m_Cal;
  78         uint32_t m_RecordId;
  79
  80 public:
  81         VEventConverter();
  82         explicit VEventConverter(uint32_t newRecordId);
  83         ~VEventConverter();
  84
  85         // Transfers ownership of m_Data to the caller
  86         char* ExtractData();
  87
  88         // Parses vevent data
  89         bool ParseData(const char *data);
  90
  91         // Barry storage operator
  92         void operator()(const Barry::Calendar &rec);
  93
  94         // Barry builder operator
  95         bool operator()(Barry::Calendar &rec, unsigned int dbId);
  96
  97         // Handles calling of the Barry::Controller to fetch a specific
  98         // record, indicated by index (into the RecordStateTable).
  99         // Returns a g_malloc'd string of data containing the vevent20
 100         // data.  It is the responsibility of the caller to free it.
 101         // This is intended to be passed into the GetChanges() function.
 102         static char* GetRecordData(BarryEnvironment *env, unsigned int dbId,
 103                 Barry::RecordStateTable::IndexType index);
 104
 105         // Handles either adding or overwriting a calendar record,
 106         // given vevent20 data in data, and the proper environmebnt,
 107         // dbId, StateIndex.  Set add to true if adding.
 108         static bool CommitRecordData(BarryEnvironment *env, unsigned int dbId,
 109                 Barry::RecordStateTable::IndexType StateIndex, uint32_t recordId,
 110                 const char *data, bool add, std::string &errmsg);
 111 };
 112
 113
 114 #endif
 115