1 /*
2 * propsys main
3 *
4 * Copyright 1997, 2002 Alexandre Julliard
5 * Copyright 2008 James Hawkins
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23
24 #include <stdarg.h>
25
26 #include "windef.h"
27 #include "winbase.h"
28 #include "objbase.h"
29 #include "propsys.h"
30 #include "wine/debug.h"
31 #include "wine/unicode.h"
32
33 WINE_DEFAULT_DEBUG_CHANNEL(propsys);
34
35 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
36 {
37 TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
38
39 switch (fdwReason)
40 {
41 case DLL_WINE_PREATTACH:
42 return FALSE; /* prefer native version */
43 case DLL_PROCESS_ATTACH:
44 DisableThreadLibraryCalls(hinstDLL);
45 break;
46 case DLL_PROCESS_DETACH:
47 break;
48 default:
49 break;
50 }
51
52 return TRUE;
53 }
54
55 HRESULT WINAPI PSRegisterPropertySchema(PCWSTR path)
56 {
57 FIXME("%s stub\n", debugstr_w(path));
58
59 return S_OK;
60 }
61
62 HRESULT WINAPI PSUnregisterPropertySchema(PCWSTR path)
63 {
64 FIXME("%s stub\n", debugstr_w(path));
65
66 return E_NOTIMPL;
67 }
68
69 HRESULT WINAPI PSGetPropertyDescription(REFPROPERTYKEY propkey, REFIID riid, void **ppv)
70 {
71 FIXME("%p, %p, %p\n", propkey, riid, ppv);
72 return E_NOTIMPL;
73 }
74
75 HRESULT WINAPI PSRefreshPropertySchema(void)
76 {
77 FIXME("\n");
78 return S_OK;
79 }
80
81 HRESULT WINAPI PSStringFromPropertyKey(REFPROPERTYKEY pkey, LPWSTR psz, UINT cch)
82 {
83 static const WCHAR guid_fmtW[] = {'{','%','','8','X','-','%','','4','X','-',
84 '%','','4','X','-','%','','2','X','%','','2','X','-',
85 '%','','2','X','%','','2','X','%','','2','X',
86 '%','','2','X','%','','2','X','%','','2','X','}',0};
87 static const WCHAR pid_fmtW[] = {'%','u',0};
88
89 WCHAR pidW[PKEY_PIDSTR_MAX + 1];
90 LPWSTR p = psz;
91 int len;
92
93 TRACE("(%p, %p, %u)\n", pkey, psz, cch);
94
95 if (!psz)
96 return E_POINTER;
97
98 /* GUIDSTRING_MAX accounts for null terminator, +1 for space character. */
99 if (cch <= GUIDSTRING_MAX + 1)
100 return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
101
102 if (!pkey)
103 {
104 psz[0] = '\0';
105 return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
106 }
107
108 sprintfW(psz, guid_fmtW, pkey->fmtid.Data1, pkey->fmtid.Data2,
109 pkey->fmtid.Data3, pkey->fmtid.Data4[0], pkey->fmtid.Data4[1],
110 pkey->fmtid.Data4[2], pkey->fmtid.Data4[3], pkey->fmtid.Data4[4],
111 pkey->fmtid.Data4[5], pkey->fmtid.Data4[6], pkey->fmtid.Data4[7]);
112
113 /* Overwrite the null terminator with the space character. */
114 p += GUIDSTRING_MAX - 1;
115 *p++ = ' ';
116 cch -= GUIDSTRING_MAX - 1 + 1;
117
118 len = sprintfW(pidW, pid_fmtW, pkey->pid);
119
120 if (cch >= len + 1)
121 {
122 strcpyW(p, pidW);
123 return S_OK;
124 }
125 else
126 {
127 WCHAR *ptr = pidW + len - 1;
128
129 psz[0] = '\0';
130 *p++ = '\0';
131 cch--;
132
133 /* Replicate a quirk of the native implementation where the contents
134 * of the property ID string are written backwards to the output
135 * buffer, skipping the rightmost digit. */
136 if (cch)
137 {
138 ptr--;
139 while (cch--)
140 *p++ = *ptr--;
141 }
142
143 return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
144 }
145 }
146
147 static const BYTE hex2bin[] =
148 {
149 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x00 */
150 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x10 */
151 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x20 */
152 0,1,2,3,4,5,6,7,8,9,0,0,0,0,0,0, /* 0x30 */
153 0,10,11,12,13,14,15,0,0,0,0,0,0,0,0,0, /* 0x40 */
154 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x50 */
155 0,10,11,12,13,14,15 /* 0x60 */
156 };
157
158 static BOOL validate_indices(LPCWSTR s, int min, int max)
159 {
160 int i;
161
162 for (i = min; i <= max; i++)
163 {
164 if (!s[i])
165 return FALSE;
166
167 if (i == 0)
168 {
169 if (s[i] != '{')
170 return FALSE;
171 }
172 else if (i == 9 || i == 14 || i == 19 || i == 24)
173 {
174 if (s[i] != '-')
175 return FALSE;
176 }
177 else if (i == 37)
178 {
179 if (s[i] != '}')
180 return FALSE;
181 }
182 else
183 {
184 if (s[i] > 'f' || (!hex2bin[s[i]] && s[i] != ''))
185 return FALSE;
186 }
187 }
188
189 return TRUE;
190 }
191
192 /* Adapted from CLSIDFromString helper in dlls/ole32/compobj.c and
193 * UuidFromString in dlls/rpcrt4/rpcrt4_main.c. */
194 static BOOL string_to_guid(LPCWSTR s, LPGUID id)
195 {
196 /* in form {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX} */
197
198 if (!validate_indices(s, 0, 8)) return FALSE;
199 id->Data1 = (hex2bin[s[1]] << 28 | hex2bin[s[2]] << 24 | hex2bin[s[3]] << 20 | hex2bin[s[4]] << 16 |
200 hex2bin[s[5]] << 12 | hex2bin[s[6]] << 8 | hex2bin[s[7]] << 4 | hex2bin[s[8]]);
201 if (!validate_indices(s, 9, 14)) return FALSE;
202 id->Data2 = hex2bin[s[10]] << 12 | hex2bin[s[11]] << 8 | hex2bin[s[12]] << 4 | hex2bin[s[13]];
203 if (!validate_indices(s, 15, 19)) return FALSE;
204 id->Data3 = hex2bin[s[15]] << 12 | hex2bin[s[16]] << 8 | hex2bin[s[17]] << 4 | hex2bin[s[18]];
205
206 /* these are just sequential bytes */
207
208 if (!validate_indices(s, 20, 21)) return FALSE;
209 id->Data4[0] = hex2bin[s[20]] << 4 | hex2bin[s[21]];
210 if (!validate_indices(s, 22, 24)) return FALSE;
211 id->Data4[1] = hex2bin[s[22]] << 4 | hex2bin[s[23]];
212
213 if (!validate_indices(s, 25, 26)) return FALSE;
214 id->Data4[2] = hex2bin[s[25]] << 4 | hex2bin[s[26]];
215 if (!validate_indices(s, 27, 28)) return FALSE;
216 id->Data4[3] = hex2bin[s[27]] << 4 | hex2bin[s[28]];
217 if (!validate_indices(s, 29, 30)) return FALSE;
218 id->Data4[4] = hex2bin[s[29]] << 4 | hex2bin[s[30]];
219 if (!validate_indices(s, 31, 32)) return FALSE;
220 id->Data4[5] = hex2bin[s[31]] << 4 | hex2bin[s[32]];
221 if (!validate_indices(s, 33, 34)) return FALSE;
222 id->Data4[6] = hex2bin[s[33]] << 4 | hex2bin[s[34]];
223 if (!validate_indices(s, 35, 37)) return FALSE;
224 id->Data4[7] = hex2bin[s[35]] << 4 | hex2bin[s[36]];
225
226 return TRUE;
227 }
228
229 HRESULT WINAPI PSPropertyKeyFromString(LPCWSTR pszString, PROPERTYKEY *pkey)
230 {
231 int has_minus = 0, has_comma = 0;
232
233 TRACE("(%s, %p)\n", debugstr_w(pszString), pkey);
234
235 if (!pszString || !pkey)
236 return E_POINTER;
237
238 memset(pkey, 0, sizeof(PROPERTYKEY));
239
240 if (!string_to_guid(pszString, &pkey->fmtid))
241 return E_INVALIDARG;
242
243 pszString += GUIDSTRING_MAX - 1;
244
245 if (!*pszString)
246 return E_INVALIDARG;
247
248 /* Only the space seems to be recognized as whitespace. The comma is only
249 * recognized once and processing terminates if another comma is found. */
250 while (*pszString == ' ' || *pszString == ',')
251 {
252 if (*pszString == ',')
253 {
254 if (has_comma)
255 return S_OK;
256 else
257 has_comma = 1;
258 }
259 pszString++;
260 }
261
262 if (!*pszString)
263 return E_INVALIDARG;
264
265 /* Only two minus signs are recognized if no comma is detected. The first
266 * sign is ignored, and the second is interpreted. If a comma is detected
267 * before the minus sign, then only one minus sign counts, and property ID
268 * interpretation begins with the next character. */
269 if (has_comma)
270 {
271 if (*pszString == '-')
272 {
273 has_minus = 1;
274 pszString++;
275 }
276 }
277 else
278 {
279 if (*pszString == '-')
280 pszString++;
281
282 /* Skip any intermediate spaces after the first minus sign. */
283 while (*pszString == ' ')
284 pszString++;
285
286 if (*pszString == '-')
287 {
288 has_minus = 1;
289 pszString++;
290 }
291
292 /* Skip any remaining spaces after minus sign. */
293 while (*pszString == ' ')
294 pszString++;
295 }
296
297 /* Overflow is not checked. */
298 while (isdigitW(*pszString))
299 {
300 pkey->pid *= 10;
301 pkey->pid += (*pszString - '');
302 pszString++;
303 }
304
305 if (has_minus)
306 pkey->pid = ~pkey->pid + 1;
307
308 return S_OK;
309 }
310
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