about summary refs log tree commit diff stats
path: root/src/jid.c
blob: ae9bcc9063f73548d137b00f2b7227b4022a82ab (plain) (blame)
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
/*
 * jid.c
 *
 * Copyright (C) 2012 - 2015 James Booth <boothj5@gmail.com>
 *
 * This file is part of Profanity.
 *
 * Profanity 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 3 of the License, or
 * (at your option) any later version.
 *
 * Profanity 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 Profanity.  If not, see <http://www.gnu.org/licenses/>.
 *
 * In addition, as a special exception, the copyright holders give permission to
 * link the code of portions of this program with the OpenSSL library under
 * certain conditions as described in each individual source file, and
 * distribute linked combinations including the two.
 *
 * You must obey the GNU General Public License in all respects for all of the
 * code used other than OpenSSL. If you modify file(s) with this exception, you
 * may extend this exception to your version of the file(s), but you are not
 * obligated to do so. If you do not wish to do so, delete this exception
 * statement from your version. If you delete this exception statement from all
 * source files in the program, then also delete it here.
 *
 */

#include <stdlib.h>
#include <string.h>

#include <glib.h>

#include "jid.h"

#include "common.h"

Jid*
jid_create(const gchar *const str)
{
    Jid *result = NULL;

    /* if str is NULL g_strdup returns NULL */
    gchar *trimmed = g_strdup(str);
    if (trimmed == NULL) {
        return NULL;
    }

    if (strlen(trimmed) == 0) {
        g_free(trimmed);
        return NULL;
    }

    if (g_str_has_prefix(trimmed, "/") || g_str_has_prefix(trimmed, "@")) {
        g_free(trimmed);
        return NULL;
    }

    if (!g_utf8_validate(trimmed, -1, NULL)) {
        g_free(trimmed);
        return NULL;
    }

    result = malloc(sizeof(struct jid_t));
    result->str = NULL;
    result->localpart = NULL;
    result->domainpart = NULL;
    result->resourcepart = NULL;
    result->barejid = NULL;
    result->fulljid = NULL;

    gchar *atp = g_utf8_strchr(trimmed, -1, '@');
    gchar *slashp = g_utf8_strchr(trimmed, -1, '/');
    gchar *domain_start = trimmed;

    if (atp) {
        result->localpart = g_utf8_substring(trimmed, 0, g_utf8_pointer_to_offset(trimmed, atp));
        domain_start = atp + 1;
    }

    if (slashp) {
        result->resourcepart = g_strdup(slashp + 1);
        result->domainpart = g_utf8_substring(domain_start, 0, g_utf8_pointer_to_offset(domain_start, slashp));
        char *barejidraw = g_utf8_substring(trimmed, 0, g_utf8_pointer_to_offset(trimmed, slashp));
        result->barejid = g_utf8_strdown(barejidraw, -1);
        result->fulljid = g_strdup(trimmed);
        g_free(barejidraw);
    } else {
        result->domainpart = g_strdup(domain_start);
        result->barejid = g_utf8_strdown(trimmed, -1);
    }

    if (result->domainpart == NULL) {
        jid_destroy(result);
        return NULL;
    }

    result->str = trimmed;

    return result;
}

Jid*
jid_create_from_bare_and_resource(const char *const room, const char *const nick)
{
    Jid *result;
    char *jid = create_fulljid(room, nick);
    result = jid_create(jid);
    free(jid);

    return result;
}

void
jid_destroy(Jid *jid)
{
    if (jid) {
        g_free(jid->str);
        g_free(jid->localpart);
        g_free(jid->domainpart);
        g_free(jid->resourcepart);
        g_free(jid->barejid);
        g_free(jid->fulljid);
        free(jid);
    }
}

gboolean
jid_is_valid_room_form(Jid *jid)
{
    return (jid->fulljid != NULL);
}

/*
 * Given a barejid, and resourcepart, create and return a full JID of the form
 * barejid/resourcepart
 * Will return a newly created string that must be freed by the caller
 */
char*
create_fulljid(const char *const barejid, const char *const resource)
{
    gchar *barejidlower = g_utf8_strdown(barejid, -1);
    GString *full_jid = g_string_new(barejidlower);
    g_free(barejidlower);
    g_string_append(full_jid, "/");
    g_string_append(full_jid, resource);

    char *result = strdup(full_jid->str);

    g_string_free(full_jid, TRUE);

    return result;
}

/*
 * Get the nickname part of the full JID, e.g.
 * Full JID = "test@conference.server/person"
 * returns "person"
 */
char*
get_nick_from_full_jid(const char *const full_room_jid)
{
    char **tokens = g_strsplit(full_room_jid, "/", 0);
    char *nick_part = NULL;

    if (tokens) {
        if (tokens[0] && tokens[1]) {
            nick_part = strdup(tokens[1]);
        }

        g_strfreev(tokens);
    }

    return nick_part;
}


/*
 * get the fulljid, fall back to the barejid
 */
char*
jid_fulljid_or_barejid(Jid *jid)
{
    if (jid->fulljid) {
        return jid->fulljid;
    } else {
        return jid->barejid;
    }
}