summaryrefslogtreecommitdiff
path: root/plugins/Dbx_mdb/src/dbintf.h
blob: 05d80d71cb9cc93bd76dbab770ca852a45318e17 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
/*

Miranda NG: the free IM client for Microsoft* Windows*

Copyright (ñ) 2012-16 Miranda NG project (http://miranda-ng.org)
all portions of this codebase are copyrighted to the people
listed in contributors.txt.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#define OWN_CACHED_CONTACT

#include <m_db_int.h>

#pragma warning (disable: 4200)

#define DBMODE_SHARED    0x0001
#define DBMODE_READONLY  0x0002

#define DBVT_ENCRYPTED   250
#define DBVT_UNENCRYPTED 251

#define MARKED_READ (DBEF_READ | DBEF_SENT)

#include <pshpack1.h>

#define DBHEADER_VERSION MAKELONG(1, 4)

#define DBHEADER_SIGNATURE  0x40DECADEu
struct DBHeader
{
	uint32_t dwSignature;
	uint32_t dwVersion;			// database format version
};

struct DBContact
{
	uint32_t dwEventCount;       // number of events in the chain for this contact
	MEVENT   evFirstUnread;
	uint64_t tsFirstUnread;
};

struct DBEvent
{
	MCONTACT contactID;     // a contact this event belongs to
	uint32_t iModuleId;	    // offset to a DBModuleName struct of the name of
	uint64_t timestamp;        // seconds since 00:00:00 01/01/1970
	uint32_t flags;            // see m_database.h, db/event/add
	uint16_t wEventType;       // module-defined event type
	uint16_t cbBlob;           // number of bytes in the blob

	bool __forceinline markedRead() const
	{
		return (flags & MARKED_READ) != 0;
	}
};

struct DBEventSortingKey
{
	MCONTACT hContact;
	MEVENT hEvent;
	uint64_t ts;

	static int Compare(const MDB_val* a, const MDB_val* b);
};

struct DBSettingKey
{
	MCONTACT hContact;
	uint32_t dwModuleId;
	char     szSettingName[];

	static int Compare(const MDB_val*, const MDB_val*);

};

struct DBSettingValue
{
	BYTE type;
	union
	{
		BYTE bVal;
		WORD wVal;
		DWORD dwVal;
		char szVal[];

		struct
		{
			size_t nLength;
			BYTE bVal[];
		} blob;
	};
};

#include <poppack.h>

struct DBCachedContact : public DBCachedContactBase
{
	void Advance(MEVENT id, DBEvent &dbe);
	void Snapshot();
	void Revert();
	DBContact dbc, tmp_dbc;
};

struct EventItem
{
	__forceinline EventItem(int _ts, MEVENT _id) :
		ts(_ts), eventId(_id)
	{}

	uint64_t ts;
	MEVENT eventId;
};

struct CDbxMdb : public MIDatabase, public MIDatabaseChecker, public MZeroedObject
{
	friend class LMDBEventCursor;

	CDbxMdb(const TCHAR *tszFileName, int mode);
	virtual ~CDbxMdb();

	int Load(bool bSkipInit);
	int Create(void);
	int Check(void);

	void DatabaseCorruption(const TCHAR *ptszText);

	void StoreKey(void);
	void SetPassword(const TCHAR *ptszPassword);
	void UpdateMenuItem(void);

	int  PrepareCheck(int*);

	__forceinline LPSTR GetMenuTitle() const { return m_bUsesPassword ? (char*)LPGEN("Change/remove password") : (char*)LPGEN("Set password"); }

	__forceinline bool isEncrypted() const { return m_bEncrypted; }
	__forceinline bool usesPassword() const { return m_bUsesPassword; }
	int      EnableEncryption(bool bEnable);
public:
	STDMETHODIMP_(BOOL)     IsRelational(void) { return TRUE; }
	STDMETHODIMP_(void)     SetCacheSafetyMode(BOOL);

	STDMETHODIMP_(LONG)     GetContactCount(void);
	STDMETHODIMP_(MCONTACT) FindFirstContact(const char *szProto = NULL);
	STDMETHODIMP_(MCONTACT) FindNextContact(MCONTACT contactID, const char *szProto = NULL);
	STDMETHODIMP_(LONG)     DeleteContact(MCONTACT contactID);
	STDMETHODIMP_(MCONTACT) AddContact(void);
	STDMETHODIMP_(BOOL)     IsDbContact(MCONTACT contactID);
	STDMETHODIMP_(LONG)     GetContactSize(void);

	STDMETHODIMP_(LONG)     GetEventCount(MCONTACT contactID);
	STDMETHODIMP_(MEVENT)   AddEvent(MCONTACT contactID, DBEVENTINFO *dbe);
	STDMETHODIMP_(BOOL)     DeleteEvent(MCONTACT contactID, MEVENT hDbEvent);
	STDMETHODIMP_(LONG)     GetBlobSize(MEVENT hDbEvent);
	STDMETHODIMP_(BOOL)     GetEvent(MEVENT hDbEvent, DBEVENTINFO *dbe);
	STDMETHODIMP_(BOOL)     MarkEventRead(MCONTACT contactID, MEVENT hDbEvent);
	STDMETHODIMP_(MCONTACT) GetEventContact(MEVENT hDbEvent);
	STDMETHODIMP_(MEVENT)   FindFirstEvent(MCONTACT contactID);
	STDMETHODIMP_(MEVENT)   FindFirstUnreadEvent(MCONTACT contactID);
	STDMETHODIMP_(MEVENT)   FindLastEvent(MCONTACT contactID);
	STDMETHODIMP_(MEVENT)   FindNextEvent(MCONTACT contactID, MEVENT hDbEvent);
	STDMETHODIMP_(MEVENT)   FindPrevEvent(MCONTACT contactID, MEVENT hDbEvent);

	STDMETHODIMP_(BOOL)     EnumModuleNames(DBMODULEENUMPROC pFunc, const void *pParam);

	STDMETHODIMP_(BOOL)     GetContactSetting(MCONTACT contactID, LPCSTR szModule, LPCSTR szSetting, DBVARIANT *dbv);
	STDMETHODIMP_(BOOL)     GetContactSettingStr(MCONTACT contactID, LPCSTR szModule, LPCSTR szSetting, DBVARIANT *dbv);
	STDMETHODIMP_(BOOL)     GetContactSettingStatic(MCONTACT contactID, LPCSTR szModule, LPCSTR szSetting, DBVARIANT *dbv);
	STDMETHODIMP_(BOOL)     FreeVariant(DBVARIANT *dbv);
	STDMETHODIMP_(BOOL)     WriteContactSetting(MCONTACT contactID, DBCONTACTWRITESETTING *dbcws);
	STDMETHODIMP_(BOOL)     DeleteContactSetting(MCONTACT contactID, LPCSTR szModule, LPCSTR szSetting);
	STDMETHODIMP_(BOOL)     EnumContactSettings(MCONTACT hContact, DBSETTINGENUMPROC pfnEnumProc, const char *szModule, const void *param);
	STDMETHODIMP_(BOOL)     SetSettingResident(BOOL bIsResident, const char *pszSettingName);
	STDMETHODIMP_(BOOL)     EnumResidentSettings(DBMODULEENUMPROC pFunc, const void *pParam);
	STDMETHODIMP_(BOOL)     IsSettingEncrypted(LPCSTR szModule, LPCSTR szSetting);

	STDMETHODIMP_(BOOL)     MetaDetouchSub(DBCachedContact *cc, int nSub);
	STDMETHODIMP_(BOOL)     MetaSetDefault(DBCachedContact *cc);
	STDMETHODIMP_(BOOL)     MetaMergeHistory(DBCachedContact *ccMeta, DBCachedContact *ccSub);
	STDMETHODIMP_(BOOL)     MetaSplitHistory(DBCachedContact *ccMeta, DBCachedContact *ccSub);

protected:
	STDMETHODIMP_(BOOL)     Start(DBCHeckCallback *callback);
	STDMETHODIMP_(BOOL)     CheckDb(int phase, int firstTime);
	STDMETHODIMP_(VOID)     Destroy();

protected:

	void  FillContacts(void);

	int   Map();
	bool  Remap();

protected:
	TCHAR*   m_tszProfileName;
	bool     m_safetyMode, m_bReadOnly, m_bShared, m_bEncrypted, m_bUsesPassword;

	////////////////////////////////////////////////////////////////////////////
	// database stuff
public:
	MICryptoEngine *m_crypto;

protected:
	MDB_env *m_pMdbEnv;
	CMDB_txn_ro m_txn;

	MDB_dbi  m_dbGlobal;
	DBHeader m_header;

	HANDLE   hSettingChangeEvent, hContactDeletedEvent, hContactAddedEvent, hEventMarkedRead;

	int      CheckProto(DBCachedContact *cc, const char *proto);

	////////////////////////////////////////////////////////////////////////////
	// settings

	MDB_dbi  m_dbSettings;
	MDB_cursor *m_curSettings;

	int      m_codePage;
	HANDLE   hService, hHook;

	LIST<char> m_lResidentSettings;

	////////////////////////////////////////////////////////////////////////////
	// contacts

	MDB_dbi	    m_dbContacts;
	MDB_cursor *m_curContacts;

	uint32_t m_contactCount;
	MCONTACT m_maxContactId;

	void     GatherContactHistory(MCONTACT hContact, LIST<EventItem> &items);

	////////////////////////////////////////////////////////////////////////////
	// events

	MDB_dbi	    m_dbEvents,   m_dbEventsSort;
	MDB_cursor *m_curEvents, *m_curEventsSort;
	MEVENT       m_dwMaxEventId;

	HANDLE   hEventAddedEvent, hEventDeletedEvent, hEventFilterAddedEvent;

	void     FindNextUnread(const txn_ptr &_txn, DBCachedContact *cc, DBEventSortingKey &key2);

	////////////////////////////////////////////////////////////////////////////
	// modules

	MDB_dbi	m_dbModules;
	MDB_cursor *m_curModules;
	
	std::map<uint32_t, std::string> m_Modules;

	int      InitModules();
	
	uint32_t GetModuleID(const char *szName);
	char*    GetModuleName(uint32_t dwId);


	int GetContactSettingWorker(MCONTACT contactID, LPCSTR szModule, LPCSTR szSetting, DBVARIANT *dbv, int isStatic);


	DBCHeckCallback *cb;

	////////////////////////////////////////////////////////////////////////////
	// encryption

	MDB_dbi  m_dbCrypto;

	int      InitCrypt(void);
	CRYPTO_PROVIDER* SelectProvider();
	void     GenerateNewKey();

	void     InitDialogs();
};