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
|
/*
* Gaim's oscar protocol plugin
* This file is the legal property of its developers.
* Please see the AUTHORS file distributed alongside this file.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Cookie Caching stuff. Adam wrote this, apparently just some
* derivatives of n's SNAC work. I cleaned it up, added comments.
*
*/
/*
* I'm assuming that cookies are type-specific. that is, we can have
* "1234578" for type 1 and type 2 concurrently. if i'm wrong, then we
* lose some error checking. if we assume cookies are not type-specific and are
* wrong, we get quirky behavior when cookies step on each others' toes.
*/
#include "oscar.h"
/**
* aim_cachecookie - appends a cookie to the cookie list
*
* if cookie->cookie for type cookie->type is found, updates the
* ->addtime of the found structure; otherwise adds the given cookie
* to the cache
*
* @param od session to add to
* @param cookie pointer to struct to append
* @return returns -1 on error, 0 on append, 1 on update. the cookie you pass
* in may be free'd, so don't count on its value after calling this!
*/
int aim_cachecookie(OscarData *od, IcbmCookie *cookie)
{
IcbmCookie *newcook;
if (!od || !cookie)
return -EINVAL;
newcook = aim_checkcookie(od, cookie->cookie, cookie->type);
if (newcook == cookie) {
newcook->addtime = time(NULL);
return 1;
} else if (newcook)
aim_cookie_free(od, newcook);
cookie->addtime = time(NULL);
cookie->next = od->msgcookies;
od->msgcookies = cookie;
return 0;
}
/**
* aim_uncachecookie - grabs a cookie from the cookie cache (removes it from the list)
*
* takes a cookie string and a cookie type and finds the cookie struct associated with that duple, removing it from the cookie list ikn the process.
*
* @param od session to grab cookie from
* @param cookie cookie string to look for
* @param type cookie type to look for
* @return if found, returns the struct; if none found (or on error), returns NULL:
*/
IcbmCookie *aim_uncachecookie(OscarData *od, guint8 *cookie, int type)
{
IcbmCookie *cur, **prev;
if (!cookie || !od->msgcookies)
return NULL;
for (prev = &od->msgcookies; (cur = *prev); ) {
if ((cur->type == type) &&
(memcmp(cur->cookie, cookie, 8) == 0)) {
*prev = cur->next;
return cur;
}
prev = &cur->next;
}
return NULL;
}
/**
* aim_mkcookie - generate an IcbmCookie *struct from a cookie string, a type, and a data pointer.
*
* @param c pointer to the cookie string array
* @param type cookie type to use
* @param data data to be cached with the cookie
* @return returns NULL on error, a pointer to the newly-allocated
* cookie on success.
*/
IcbmCookie *aim_mkcookie(guint8 *c, int type, void *data)
{
IcbmCookie *cookie;
if (!c)
return NULL;
cookie = calloc(1, sizeof(IcbmCookie));
cookie->data = data;
cookie->type = type;
memcpy(cookie->cookie, c, 8);
return cookie;
}
/**
* aim_checkcookie - check to see if a cookietuple has been cached
*
* @param od session to check for the cookie in
* @param cookie pointer to the cookie string array
* @param type type of the cookie to look for
* @return returns a pointer to the cookie struct (still in the list)
* on success; returns NULL on error/not found
*/
IcbmCookie *aim_checkcookie(OscarData *od, const guint8 *cookie, int type)
{
IcbmCookie *cur;
for (cur = od->msgcookies; cur; cur = cur->next) {
if ((cur->type == type) &&
(memcmp(cur->cookie, cookie, 8) == 0))
return cur;
}
return NULL;
}
/**
* aim_cookie_free - free an IcbmCookie struct
*
* this function removes the cookie *cookie from the list of cookies
* in od, and then frees all memory associated with it. including
* its data! if you want to use the private data after calling this,
* make sure you copy it first.
*
* @param od session to remove the cookie from
* @param cookie the address of a pointer to the cookie struct to remove
* @return returns -1 on error, 0 on success.
*
*/
int aim_cookie_free(OscarData *od, IcbmCookie *cookie)
{
IcbmCookie *cur, **prev;
if (!od || !cookie)
return -EINVAL;
for (prev = &od->msgcookies; (cur = *prev); ) {
if (cur == cookie)
*prev = cur->next;
else
prev = &cur->next;
}
free(cookie->data);
free(cookie);
return 0;
}
/* XXX I hate switch */
int aim_msgcookie_gettype(int type)
{
/* XXX: hokey-assed. needs fixed. */
switch(type) {
case OSCAR_CAPABILITY_BUDDYICON: return AIM_COOKIETYPE_OFTICON;
case OSCAR_CAPABILITY_TALK: return AIM_COOKIETYPE_OFTVOICE;
case OSCAR_CAPABILITY_DIRECTIM: return AIM_COOKIETYPE_OFTIMAGE;
case OSCAR_CAPABILITY_CHAT: return AIM_COOKIETYPE_CHAT;
case OSCAR_CAPABILITY_GETFILE: return AIM_COOKIETYPE_OFTGET;
case OSCAR_CAPABILITY_SENDFILE: return AIM_COOKIETYPE_OFTSEND;
default: return AIM_COOKIETYPE_UNKNOWN;
}
}
|
