summaryrefslogtreecommitdiff
path: root/src/modules/protocols/protochains.cpp
blob: e14837c18fe83d5e491c5157971f54387d90cbd3 (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
/*

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

Copyright (c) 2012-14 Miranda NG project (http://miranda-ng.org),
Copyright (c) 2000-12 Miranda IM project,
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.
*/

#include "..\..\core\commonheaders.h"
#include <m_protomod.h>

extern LIST<PROTOCOLDESCRIPTOR> filters;

static int GetProtocolP(MCONTACT hContact, char *szBuf, int cbLen)
{
	if (currDb == NULL)
		return 1;

	DBCachedContact *cc = currDb->m_cache->GetCachedContact(hContact);
	if (cc && cc->szProto != NULL) {
		strncpy(szBuf, cc->szProto, cbLen);
		szBuf[cbLen-1] = 0;
		return 0;
	}

	DBVARIANT dbv;
	dbv.type = DBVT_ASCIIZ;
	dbv.pszVal = szBuf;
	dbv.cchVal = cbLen;

	int res = currDb->GetContactSettingStatic(hContact, "Protocol", "p", &dbv);
	if (res == 0) {
		if (cc == NULL)
			cc = currDb->m_cache->AddContactToCache(hContact);

		cc->szProto = currDb->m_cache->GetCachedSetting(NULL, szBuf, 0, (int)strlen(szBuf));
	}
	return res;
}

/////////////////////////////////////////////////////////////////////////////////////////

INT_PTR CallContactService(HANDLE hContact, const char *szProtoService, WPARAM wParam, LPARAM lParam)
{
	INT_PTR ret;
	CCSDATA ccs = { hContact, szProtoService, wParam, lParam };

	for (int i=0; i < filters.getCount(); i++) {
		if ((ret = CallProtoServiceInt(hContact, filters[i]->szName, szProtoService, i+1, (LPARAM)&ccs)) != CALLSERVICE_NOTFOUND) {
			//chain was started, exit
			return ret;
		}
	}

	char szProto[40];
	if ( GetProtocolP((MCONTACT)hContact, szProto, sizeof(szProto)))
		return 1;

	PROTOACCOUNT *pa = Proto_GetAccount(szProto);
	if (pa == NULL || pa->ppro == NULL)
		return 1;

	if (pa->bOldProto)
		ret = CallProtoServiceInt(hContact, szProto, szProtoService, (WPARAM)(-1), (LPARAM)&ccs);
	else
		ret = CallProtoServiceInt(hContact, szProto, szProtoService, wParam, lParam);
	if (ret == CALLSERVICE_NOTFOUND)
		ret = 1;

	return ret;
}

/////////////////////////////////////////////////////////////////////////////////////////

INT_PTR Proto_CallContactService(WPARAM wParam, LPARAM lParam)
{
	CCSDATA *ccs = (CCSDATA*)lParam;
	INT_PTR ret;

	if (wParam == (WPARAM)(-1))
		return 1;

	for (int i = wParam; i < filters.getCount(); i++) {
		if ((ret = CallProtoServiceInt(NULL, filters[i]->szName, ccs->szProtoService, i+1, lParam)) != CALLSERVICE_NOTFOUND) {
			//chain was started, exit
			return ret;
		}
	}

	char szProto[40];
	if (GetProtocolP((MCONTACT)ccs->hContact, szProto, sizeof(szProto)))
		return 1;

	PROTOACCOUNT *pa = Proto_GetAccount(szProto);
	if (pa == NULL || pa->ppro == NULL)
		return 1;

	if (pa->bOldProto)
		ret = CallProtoServiceInt(ccs->hContact, szProto, ccs->szProtoService, (WPARAM)(-1), (LPARAM)ccs);
	else
		ret = CallProtoServiceInt(ccs->hContact, szProto, ccs->szProtoService, ccs->wParam, ccs->lParam);
	if (ret == CALLSERVICE_NOTFOUND)
		ret = 1;

	return ret;
}

/////////////////////////////////////////////////////////////////////////////////////////

static INT_PTR Proto_RecvChain(WPARAM wParam, LPARAM lParam)
{
	CCSDATA *ccs = (CCSDATA*)lParam;
	INT_PTR ret;

	if (wParam == (WPARAM)(-1)) return 1;   //shouldn't happen - sanity check
	if (wParam == 0) { //begin processing by finding end of chain
		if (GetCurrentThreadId() != hMainThreadId) // restart this function in the main thread
			return CallServiceSync(MS_PROTO_CHAINRECV, wParam, lParam);

		wParam = filters.getCount();
	}
	else wParam--;

	for (int i = wParam-1; i >= 0; i--)
		if ((ret = CallProtoServiceInt(NULL, filters[i]->szName, ccs->szProtoService, i+1, lParam)) != CALLSERVICE_NOTFOUND)
			//chain was started, exit
			return ret;

	//end of chain, call network protocol again
	char szProto[40];
	if (GetProtocolP((MCONTACT)ccs->hContact, szProto, sizeof(szProto)))
		return 1;

	PROTOACCOUNT *pa = Proto_GetAccount(szProto);
	if (pa == NULL || pa->ppro == NULL)
		return 1;

	if (pa->bOldProto)
		ret = CallProtoServiceInt(ccs->hContact, szProto, ccs->szProtoService, (WPARAM)(-1), (LPARAM)ccs);
	else
		ret = CallProtoServiceInt(ccs->hContact, szProto, ccs->szProtoService, ccs->wParam, ccs->lParam);
	if (ret == CALLSERVICE_NOTFOUND)
		ret = 1;

	return ret;
}

PROTOACCOUNT* __fastcall Proto_GetAccount(HANDLE hContact)
{
	if (hContact == NULL)
		return NULL;

	char szProto[40];
	if (GetProtocolP((MCONTACT)hContact, szProto, sizeof(szProto)))
		return NULL;

	return Proto_GetAccount(szProto);
}

static INT_PTR Proto_GetContactBaseProto(WPARAM wParam, LPARAM)
{
	PROTOACCOUNT *pa = Proto_GetAccount((HANDLE)wParam);
	return (INT_PTR)(Proto_IsAccountEnabled(pa) ? pa->szModuleName : NULL);
}

static INT_PTR Proto_GetContactBaseAccount(WPARAM wParam, LPARAM)
{
	PROTOACCOUNT *pa = Proto_GetAccount((HANDLE)wParam);
	return (INT_PTR)(pa ? pa->szModuleName : NULL);
}

static INT_PTR Proto_IsProtoOnContact(WPARAM wParam, LPARAM lParam)
{
	char *szProto = (char*)lParam;
	if (szProto == NULL)
		return 0;

	char szContactProto[40];
	if (!GetProtocolP(wParam, szContactProto, sizeof(szContactProto)))
		if (!_stricmp(szProto, szContactProto))
			return -1;

	for (int i=0; i < filters.getCount(); i++)
		if (!strcmp(szProto, filters[i]->szName))
			return i+1;

	return 0;
}

static INT_PTR Proto_AddToContact(WPARAM wParam, LPARAM lParam)
{
	char *szProto = (char*)lParam;
	PROTOCOLDESCRIPTOR *pd = Proto_IsProtocolLoaded(szProto);
	if (pd == NULL) {
		PROTOACCOUNT *pa = Proto_GetAccount(szProto);
		if (pa) {
			db_set_s((HANDLE)wParam, "Protocol", "p", szProto);
			return 0;
		}
		return 1;
	}

	if (pd->type == PROTOTYPE_PROTOCOL || pd->type == PROTOTYPE_VIRTUAL)
		db_set_s((HANDLE)wParam, "Protocol", "p", szProto);

	return 0;
}

static INT_PTR Proto_RemoveFromContact(WPARAM wParam, LPARAM lParam)
{
	switch ( Proto_IsProtoOnContact(wParam, lParam)) {
	case 0:
		return 1;
	case -1:
		db_unset((HANDLE)wParam, "Protocol", "p");
	}

	return 0;
}

int LoadProtoChains(void)
{
	if (!db_get_b(NULL, "Compatibility", "Filters", 0)) {
		CallService(MS_DB_MODULE_DELETE, 0, (LPARAM)"_Filters");
		db_set_b(NULL, "Compatibility", "Filters", 1);
	}

	CreateServiceFunction(MS_PROTO_CALLCONTACTSERVICE, Proto_CallContactService);
	CreateServiceFunction(MS_PROTO_CHAINSEND, Proto_CallContactService);
	CreateServiceFunction(MS_PROTO_CHAINRECV, Proto_RecvChain);
	CreateServiceFunction(MS_PROTO_GETCONTACTBASEPROTO, Proto_GetContactBaseProto);
	CreateServiceFunction(MS_PROTO_GETCONTACTBASEACCOUNT, Proto_GetContactBaseAccount);
	CreateServiceFunction(MS_PROTO_ISPROTOONCONTACT, Proto_IsProtoOnContact);
	CreateServiceFunction(MS_PROTO_ADDTOCONTACT, Proto_AddToContact);
	CreateServiceFunction(MS_PROTO_REMOVEFROMCONTACT, Proto_RemoveFromContact);
	return 0;
}