source: protocols/jabber/jid.c @ 96863f6

Last change on this file since 96863f6 was b7d3cc34, checked in by Wilmer van der Gaast <wilmer@…>, at 2005-11-06T18:23:18Z

Initial repository (0.99 release tree)

  • Property mode set to 100644
File size: 4.7 KB
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1/* --------------------------------------------------------------------------
2 *
3 * License
4 *
5 * The contents of this file are subject to the Jabber Open Source License
6 * Version 1.0 (the "JOSL").  You may not copy or use this file, in either
7 * source code or executable form, except in compliance with the JOSL. You
8 * may obtain a copy of the JOSL at http://www.jabber.org/ or at
9 * http://www.opensource.org/. 
10 *
11 * Software distributed under the JOSL is distributed on an "AS IS" basis,
12 * WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the JOSL
13 * for the specific language governing rights and limitations under the
14 * JOSL.
15 *
16 * Copyrights
17 *
18 * Portions created by or assigned to Jabber.com, Inc. are
19 * Copyright (c) 1999-2002 Jabber.com, Inc.  All Rights Reserved.  Contact
20 * information for Jabber.com, Inc. is available at http://www.jabber.com/.
21 *
22 * Portions Copyright (c) 1998-1999 Jeremie Miller.
23 *
24 * Acknowledgements
25 *
26 * Special thanks to the Jabber Open Source Contributors for their
27 * suggestions and support of Jabber.
28 *
29 * Alternatively, the contents of this file may be used under the terms of the
30 * GNU General Public License Version 2 or later (the "GPL"), in which case
31 * the provisions of the GPL are applicable instead of those above.  If you
32 * wish to allow use of your version of this file only under the terms of the
33 * GPL and not to allow others to use your version of this file under the JOSL,
34 * indicate your decision by deleting the provisions above and replace them
35 * with the notice and other provisions required by the GPL.  If you do not
36 * delete the provisions above, a recipient may use your version of this file
37 * under either the JOSL or the GPL.
38 *
39 *
40 * --------------------------------------------------------------------------*/
41
42#include "jabber.h"
43#include <glib.h>
44
45static jid jid_safe(jid id)
46{
47    char *str;
48
49    if(strlen(id->server) == 0 || strlen(id->server) > 255)
50        return NULL;
51
52    /* lowercase the hostname, make sure it's valid characters */
53    for(str = id->server; *str != '\0'; str++)
54    {
55        *str = tolower(*str);
56        if(!(isalnum(*str) || *str == '.' || *str == '-' || *str == '_')) return NULL;
57    }
58
59    /* cut off the user */
60    if(id->user != NULL && strlen(id->user) > 64)
61        id->user[64] = '\0';
62
63    /* check for low and invalid ascii characters in the username */
64    if(id->user != NULL)
65        for(str = id->user; *str != '\0'; str++)
66            if(*str <= 32 || *str == ':' || *str == '@' || *str == '<' || *str == '>' || *str == '\'' || *str == '"' || *str == '&') return NULL;
67
68    return id;
69}
70
71jid jid_new(pool p, char *idstr)
72{
73    char *server, *resource, *type, *str;
74    jid id;
75
76    if(p == NULL || idstr == NULL || strlen(idstr) == 0)
77        return NULL;
78
79    /* user@server/resource */
80
81    str = pstrdup(p, idstr);
82
83    id = pmalloco(p,sizeof(struct jid_struct));
84    id->p = p;
85
86    resource = strstr(str,"/");
87    if(resource != NULL)
88    {
89        *resource = '\0';
90        ++resource;
91        if(strlen(resource) > 0)
92            id->resource = resource;
93    }else{
94        resource = str + strlen(str); /* point to end */
95    }
96
97    type = strstr(str,":");
98    if(type != NULL && type < resource)
99    {
100        *type = '\0';
101        ++type;
102        str = type; /* ignore the type: prefix */
103    }
104
105    server = strstr(str,"@");
106    if(server == NULL || server > resource)
107    { /* if there's no @, it's just the server address */
108        id->server = str;
109    }else{
110        *server = '\0';
111        ++server;
112        id->server = server;
113        if(strlen(str) > 0)
114            id->user = str;
115    }
116
117    return jid_safe(id);
118}
119
120char *jid_full(jid id)
121{
122    spool s;
123
124    if(id == NULL)
125        return NULL;
126
127    /* use cached copy */
128    if(id->full != NULL)
129        return id->full;
130
131    s = spool_new(id->p);
132
133    if(id->user != NULL)
134        spooler(s, id->user,"@",s);
135
136    spool_add(s, id->server);
137
138    if(id->resource != NULL)
139        spooler(s, "/",id->resource,s);
140
141    id->full = spool_print(s);
142    return id->full;
143}
144
145/* local utils */
146static int _jid_nullstrcmp(char *a, char *b)
147{
148    if(a == NULL && b == NULL) return 0;
149    if(a == NULL || b == NULL) return -1;
150    return strcmp(a,b);
151}
152static int _jid_nullstrcasecmp(char *a, char *b)
153{
154    if(a == NULL && b == NULL) return 0;
155    if(a == NULL || b == NULL) return -1;
156    return g_strcasecmp(a,b);
157}
158
159/* suggested by Anders Qvist <quest@valdez.netg.se> */
160int jid_cmpx(jid a, jid b, int parts)
161{
162    if(a == NULL || b == NULL)
163        return -1;
164
165    if(parts & JID_RESOURCE && _jid_nullstrcmp(a->resource, b->resource) != 0) return -1;
166    if(parts & JID_USER && _jid_nullstrcasecmp(a->user, b->user) != 0) return -1;
167    if(parts & JID_SERVER && _jid_nullstrcmp(a->server, b->server) != 0) return -1;
168
169    return 0;
170}
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