ermyth/src/authcookie.C

/*
 * authcookie.C: Remote authentication ticket management
 *
 * Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team
 * Rights to this code are as documented in COPYING.
 *
 *
 * Portions of this file were derived from sources bearing the following license:
 * Rights to this code are documented in doc/pod/license.pod.
 * Copyright © 2005-2007 Atheme Project (http://www.atheme.org)           
 */

static char const rcsid[] = "$Id: authcookie.C,v 1.5 2007-09-16 18:54:44 pippijn Exp $";

#include "atheme.h"
#include <libermyth.h>
#include "authcookie.h"

list_t authcookie_list;

void
authcookie_init (void)
{
#if 0
  authcookie_heap = BlockHeapCreate (sizeof (authcookie_t), 1024);
#endif
}

/*
 * authcookie_create()
 *
 * Inputs:
 *       account associated with the authcookie
 *
 * Outputs:
 *       pointer to new authcookie
 *
 * Side Effects:
 *       an authcookie ticket is created, and validated.
 */
authcookie_t *
authcookie_create (myuser_t *mu)
{
  authcookie_t *au = new authcookie_t;

  au->ticket = gen_pw (20);
  au->myuser = mu;
  au->expire = NOW + 3600;

  node_add (au, &au->node, &authcookie_list);

  return au;
}

/*
 * authcookie_find()
 *
 * Inputs:
 *       either the ticket string, the myuser_t it is associated with, or both
 *
 * Outputs:
 *       the authcookie ticket for this object, if any
 *
 * Side Effects:
 *       none
 */
authcookie_t *
authcookie_find (char *ticket, myuser_t *myuser)
{
  node_t *n;
  authcookie_t *ac;

  /* at least one must be specified */
  return_val_if_fail (ticket != NULL || myuser != NULL, NULL);

  if (!myuser)                  /* must have ticket */
    {
      LIST_FOREACH (n, authcookie_list.head)
      {
        ac = static_cast<authcookie_t *> (n->data);

        if (!strcmp (ac->ticket, ticket))
          return ac;
      }
    }
  else if (!ticket)             /* must have myuser */
    {
      LIST_FOREACH (n, authcookie_list.head)
      {
        ac = static_cast<authcookie_t *> (n->data);

        if (ac->myuser == myuser)
          return ac;
      }
    }
  else                          /* must have both */
    {
      LIST_FOREACH (n, authcookie_list.head)
      {
        ac = static_cast<authcookie_t *> (n->data);

        if (ac->myuser == myuser && !strcmp (ac->ticket, ticket))
          return ac;
      }
    }

  return NULL;
}

/*
 * authcookie_destroy()
 *
 * Inputs:
 *       an authcookie to destroy
 *
 * Outputs:
 *       none
 *
 * Side Effects:
 *       an authcookie is destroyed
 */
void
authcookie_destroy (authcookie_t *ac)
{
  return_if_fail (ac != NULL);

  node_del (&ac->node, &authcookie_list);
  sfree (ac->ticket);
  delete ac;
}

/*
 * authcookie_destroy_all()
 *
 * Inputs:
 *       a myuser_t pointer
 *
 * Outputs:
 *       none
 *
 * Side Effects:
 *       all authcookies for the user are destroyed
 */
void
authcookie_destroy_all (myuser_t *mu)
{
  node_t *n, *tn;
  authcookie_t *ac;

  LIST_FOREACH_SAFE (n, tn, authcookie_list.head)
  {
    ac = static_cast<authcookie_t *> (n->data);

    if (ac->myuser == mu)
      authcookie_destroy (ac);
  }
}

/*
 * authcookie_expire()
 *
 * Inputs:
 *       unused arg because this is an event function
 *
 * Outputs:
 *       none
 *
 * Side Effects:
 *       expired authcookies are destroyed
 */
void
authcookie_expire (void *arg)
{
  authcookie_t *ac;
  node_t *n, *tn;

  (void) arg;
  LIST_FOREACH_SAFE (n, tn, authcookie_list.head)
  {
    ac = static_cast<authcookie_t *> (n->data);

    if (ac->expire <= NOW)
      authcookie_destroy (ac);
  }
}

/*
 * authcookie_validate()
 *
 * Inputs:
 *       a ticket and myuser pair that needs to be validated
 *
 * Outputs:
 *       true if the authcookie is valid,
 *       otherwise false
 *
 * Side Effects:
 *       expired authcookies are destroyed here
 */
bool
authcookie_validate (char *ticket, myuser_t *myuser)
{
  authcookie_t *ac = authcookie_find (ticket, myuser);

  if (ac == NULL)
    return false;

  if (ac->expire <= NOW)
    {
      authcookie_destroy (ac);
      return false;
    }

  return true;
}

/* vim:cinoptions=>s,e0,n0,f0,{0,}0,^0,=s,ps,t0,c3,+s,(2s,us,)20,*30,gs,hs
 * vim:ts=8
 * vim:sw=8
 * vim:noexpandtab
 */
Revision:	1.6
Committed:	Sat Sep 22 14:27:30 2007 UTC (16 years, 8 months ago) by pippijn
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.5:	+2 -1 lines
Log Message:	split up ermyth into ermyth-modules, libermyth (currently just ermyth-util) and ermyth-core
#	User	Rev	Content
1	pippijn	1.1	/*
2			* authcookie.C: Remote authentication ticket management
3	pippijn	1.5	*
4			* Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team
5			* Rights to this code are as documented in COPYING.
6			*
7			*
8			* Portions of this file were derived from sources bearing the following license:
9	pippijn	1.2	* Rights to this code are documented in doc/pod/license.pod.
10	pippijn	1.4	* Copyright © 2005-2007 Atheme Project (http://www.atheme.org)
11	pippijn	1.1	*/
12
13	pippijn	1.6	static char const rcsid[] = "$Id: authcookie.C,v 1.5 2007-09-16 18:54:44 pippijn Exp $";
14	pippijn	1.1
15			#include "atheme.h"
16	pippijn	1.6	#include <libermyth.h>
17	pippijn	1.1	#include "authcookie.h"
18
19			list_t authcookie_list;
20
21			void
22			authcookie_init (void)
23			{
24	pippijn	1.4	#if 0
25	pippijn	1.1	authcookie_heap = BlockHeapCreate (sizeof (authcookie_t), 1024);
26	pippijn	1.4	#endif
27	pippijn	1.1	}
28
29			/*
30			* authcookie_create()
31			*
32			* Inputs:
33			* account associated with the authcookie
34			*
35			* Outputs:
36			* pointer to new authcookie
37			*
38			* Side Effects:
39			* an authcookie ticket is created, and validated.
40			*/
41			authcookie_t *
42			authcookie_create (myuser_t *mu)
43			{
44	pippijn	1.4	authcookie_t *au = new authcookie_t;
45	pippijn	1.1
46			au->ticket = gen_pw (20);
47			au->myuser = mu;
48			au->expire = NOW + 3600;
49
50			node_add (au, &au->node, &authcookie_list);
51
52			return au;
53			}
54
55			/*
56			* authcookie_find()
57			*
58			* Inputs:
59			* either the ticket string, the myuser_t it is associated with, or both
60			*
61			* Outputs:
62			* the authcookie ticket for this object, if any
63			*
64			* Side Effects:
65			* none
66			*/
67			authcookie_t *
68			authcookie_find (char ticket, myuser_t myuser)
69			{
70			node_t *n;
71			authcookie_t *ac;
72
73			/* at least one must be specified */
74			return_val_if_fail (ticket != NULL \|\| myuser != NULL, NULL);
75
76			if (!myuser) /* must have ticket */
77			{
78			LIST_FOREACH (n, authcookie_list.head)
79			{
80			ac = static_cast<authcookie_t *> (n->data);
81
82			if (!strcmp (ac->ticket, ticket))
83			return ac;
84			}
85			}
86			else if (!ticket) /* must have myuser */
87			{
88			LIST_FOREACH (n, authcookie_list.head)
89			{
90			ac = static_cast<authcookie_t *> (n->data);
91
92			if (ac->myuser == myuser)
93			return ac;
94			}
95			}
96			else /* must have both */
97			{
98			LIST_FOREACH (n, authcookie_list.head)
99			{
100			ac = static_cast<authcookie_t *> (n->data);
101
102			if (ac->myuser == myuser && !strcmp (ac->ticket, ticket))
103			return ac;
104			}
105			}
106
107			return NULL;
108			}
109
110			/*
111			* authcookie_destroy()
112			*
113			* Inputs:
114			* an authcookie to destroy
115			*
116			* Outputs:
117			* none
118			*
119			* Side Effects:
120			* an authcookie is destroyed
121			*/
122			void
123			authcookie_destroy (authcookie_t *ac)
124			{
125			return_if_fail (ac != NULL);
126
127			node_del (&ac->node, &authcookie_list);
128	pippijn	1.4	sfree (ac->ticket);
129			delete ac;
130	pippijn	1.1	}
131
132			/*
133			* authcookie_destroy_all()
134			*
135			* Inputs:
136			* a myuser_t pointer
137			*
138			* Outputs:
139			* none
140			*
141			* Side Effects:
142			* all authcookies for the user are destroyed
143			*/
144			void
145			authcookie_destroy_all (myuser_t *mu)
146			{
147			node_t n, tn;
148			authcookie_t *ac;
149
150			LIST_FOREACH_SAFE (n, tn, authcookie_list.head)
151			{
152			ac = static_cast<authcookie_t *> (n->data);
153
154			if (ac->myuser == mu)
155			authcookie_destroy (ac);
156			}
157			}
158
159			/*
160			* authcookie_expire()
161			*
162			* Inputs:
163			* unused arg because this is an event function
164			*
165			* Outputs:
166			* none
167			*
168			* Side Effects:
169			* expired authcookies are destroyed
170			*/
171			void
172			authcookie_expire (void *arg)
173			{
174			authcookie_t *ac;
175			node_t n, tn;
176
177			(void) arg;
178			LIST_FOREACH_SAFE (n, tn, authcookie_list.head)
179			{
180			ac = static_cast<authcookie_t *> (n->data);
181
182			if (ac->expire <= NOW)
183			authcookie_destroy (ac);
184			}
185			}
186
187			/*
188			* authcookie_validate()
189			*
190			* Inputs:
191			* a ticket and myuser pair that needs to be validated
192			*
193			* Outputs:
194			* true if the authcookie is valid,
195			* otherwise false
196			*
197			* Side Effects:
198			* expired authcookies are destroyed here
199			*/
200			bool
201			authcookie_validate (char ticket, myuser_t myuser)
202			{
203			authcookie_t *ac = authcookie_find (ticket, myuser);
204
205			if (ac == NULL)
206			return false;
207
208			if (ac->expire <= NOW)
209			{
210			authcookie_destroy (ac);
211			return false;
212			}
213
214			return true;
215			}
216
217			/* vim:cinoptions=>s,e0,n0,f0,{0,}0,^0,=s,ps,t0,c3,+s,(2s,us,)20,*30,gs,hs
218			* vim:ts=8
219			* vim:sw=8
220			* vim:noexpandtab
221			*/