6 * Copyright (C) 2009-2013 SIPE Project <http://sipe.sourceforge.net/>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #include "sipe-backend.h"
31 #include "sipe-core.h" /* to ensure same API for backends */
32 #include "sipe-core-private.h"
33 #include "sipe-utils.h"
36 /* Generate 16 random bits */
37 #define RANDOM16BITS (rand() & 0xFFFF)
39 gchar
*gencallid(void)
41 return g_strdup_printf("%04Xg%04Xa%04Xi%04Xm%04Xt%04Xb%04Xx%04Xx",
42 RANDOM16BITS
, RANDOM16BITS
, RANDOM16BITS
,
43 RANDOM16BITS
, RANDOM16BITS
, RANDOM16BITS
,
44 RANDOM16BITS
, RANDOM16BITS
);
49 return g_strdup_printf("%04d%04d", RANDOM16BITS
, RANDOM16BITS
);
52 gchar
*genconfid(void)
54 return g_strdup_printf("%04X%04X%04X%04X%04X%04X%04X%04X",
55 RANDOM16BITS
, RANDOM16BITS
, RANDOM16BITS
,
56 RANDOM16BITS
, RANDOM16BITS
, RANDOM16BITS
,
57 RANDOM16BITS
, RANDOM16BITS
);
60 gchar
*get_contact(const struct sipe_core_private
*sipe_private
)
62 return g_strdup(sipe_private
->contact
);
65 gchar
*parse_from(const gchar
*hdr
)
68 const gchar
*tmp
, *tmp2
= hdr
;
70 if (!hdr
) return NULL
;
71 SIPE_DEBUG_INFO("parsing address out of %s", hdr
);
72 tmp
= strchr(hdr
, '<');
74 /* i hate the different SIP UA behaviours... */
75 if (tmp
) { /* sip address in <...> */
77 tmp
= strchr(tmp2
, '>');
79 from
= g_strndup(tmp2
, tmp
- tmp2
);
81 SIPE_DEBUG_INFO_NOFORMAT("found < without > in From");
85 tmp
= strchr(tmp2
, ';');
87 from
= g_strndup(tmp2
, tmp
- tmp2
);
89 from
= g_strdup(tmp2
);
92 SIPE_DEBUG_INFO("got %s", from
);
96 gchar
*sip_uri_from_name(const gchar
*name
)
98 return(g_strdup_printf("sip:%s", name
));
101 gchar
*sip_uri(const gchar
*string
)
103 return(strstr(string
, "sip:") ? g_strdup(string
) : sip_uri_from_name(string
));
106 static gchar
*escape_uri_part(const gchar
*in
, guint len
)
108 gchar
*escaped
= NULL
;
113 /* reserve space for worst case, i.e. every character needs escaping */
114 escaped
= s
= g_malloc(3 * len
+ 1);
118 /* only allow ASCII characters */
125 * RFC 3986 Appendix A
127 * authority = [ userinfo "@" ] host [ ":" port ]
128 * userinfo = *( unreserved / pct-encoded / sub-delims / ":" )
129 * host = IP-literal / IPv4address / reg-name
130 * reg-name = *( unreserved / pct-encoded / sub-delims )
131 * pct-encoded = "%" HEXDIG HEXDIG
132 * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
134 * Escape everything that isn't in "unreserved"
143 sprintf(s
, "%%%1X%1X", c
/ 16, c
% 16);
153 gchar
*sip_uri_if_valid(const gchar
*string
)
155 /* strip possible sip: prefix */
156 const gchar
*uri
= sipe_get_no_sip_uri(string
);
158 gchar
*result
= NULL
;
160 /* only XXX@YYY is valid */
161 if (uri
&& ((at
= strchr(uri
, '@')) != NULL
)) {
162 gchar
*userinfo
= escape_uri_part(uri
, at
- uri
);
165 gchar
*host
= escape_uri_part(at
+ 1, strlen(at
+ 1));
168 /* name is valid for URI, convert it */
169 result
= g_strdup_printf("sip:%s@%s",
181 const gchar
*sipe_get_no_sip_uri(const gchar
*sip_uri
)
183 #define SIP_PREFIX "sip:"
185 if (!sip_uri
) return NULL
;
187 if (g_str_has_prefix(sip_uri
, SIP_PREFIX
)) {
188 return(sip_uri
+ strlen(SIP_PREFIX
));
195 get_epid(struct sipe_core_private
*sipe_private
)
197 if (!sipe_private
->epid
) {
198 gchar
*self_sip_uri
= sip_uri_self(sipe_private
);
199 sipe_private
->epid
= sipe_get_epid(self_sip_uri
,
201 sipe_backend_network_ip_address(SIPE_CORE_PUBLIC
));
202 g_free(self_sip_uri
);
204 return g_strdup(sipe_private
->epid
);
207 gchar
*get_uuid(struct sipe_core_private
*sipe_private
)
209 gchar
*epid
= get_epid(sipe_private
);
210 gchar
*uuid
= generateUUIDfromEPID(epid
);
217 sipe_get_pub_instance(struct sipe_core_private
*sipe_private
,
221 gchar
*epid
= get_epid(sipe_private
);
223 sscanf(epid
, "%08x", &res
);
226 if (publication_key
== SIPE_PUB_DEVICE
) {
228 } else if (publication_key
== SIPE_PUB_STATE_MACHINE
) { /* First hexadecimal digit is 0x3 */
229 res
= (res
>> 4) | 0x30000000;
230 } else if (publication_key
== SIPE_PUB_STATE_USER
) {
231 res
= 0x20000000; /* fixed */
232 } else if (publication_key
== SIPE_PUB_STATE_CALENDAR
) { /* First hexadecimal digit is 0x4 */
233 res
= (res
>> 4) | 0x40000000;
234 } else if (publication_key
== SIPE_PUB_STATE_CALENDAR_OOF
) { /* First hexadecimal digit is 0x5 */
235 res
= (res
>> 4) | 0x50000000;
236 } else if (publication_key
== SIPE_PUB_CALENDAR_DATA
||
237 publication_key
== SIPE_PUB_NOTE_OOF
)
238 { /* First hexadecimal digit is 0x4 */
239 unsigned calendar_id
= 0;
240 char *mail_hash
= sipe_get_epid(sipe_private
->email
, "", "");
242 sscanf(mail_hash
, "%08x", &calendar_id
);
244 res
= (calendar_id
>> 4) | 0x40000000;
245 } else if (publication_key
== SIPE_PUB_STATE_PHONE_VOIP
) { /* First hexadecimal digit is 0x8 */
246 res
= (res
>> 4) | 0x80000000;
253 sipe_is_bad_alias(const char *uri
,
257 gboolean result
= FALSE
;
259 if (!uri
) return FALSE
;
260 if (!alias
) return TRUE
;
262 if (g_str_has_prefix(alias
, "sip:") || g_str_has_prefix(alias
, "sips:")) return TRUE
;
264 /* check if alias is just SIP URI but without 'sip:' prefix */
265 uri_alias
= sip_uri_from_name(alias
);
266 if (sipe_strcase_equal(uri
, uri_alias
)) {
275 is_empty(const char *st
)
277 if (!st
|| strlen(st
) == 0)
281 /* suspecious leading or trailing staces */
282 else if (isspace((unsigned char) *st
) ||
283 isspace((unsigned char) *(st
+ strlen(st
) - 1)))
285 /* to not modify original string */
286 char *dup
= g_strdup(st
);
287 if (strlen(g_strstrip(dup
)) == 0) {
296 /** Returns newly allocated string. Must be g_free()'d */
298 replace(const char *st
,
305 if (!st
) return NULL
;
307 res
= g_strjoinv(replace
, tmp
= g_strsplit(st
, search
, -1));
312 void sipe_utils_message_debug(const gchar
*type
,
317 if (sipe_backend_debug_enabled()) {
318 GString
*str
= g_string_new("");
321 const char *marker
= sending
?
326 g_get_current_time(&currtime
);
327 time_str
= g_time_val_to_iso8601(&currtime
);
328 g_string_append_printf(str
, "\nMESSAGE START %s %s - %s\n", marker
, type
, time_str
);
329 g_string_append(str
, tmp
= replace(header
, "\r\n", "\n"));
331 g_string_append(str
, "\n");
333 g_string_append(str
, tmp
= replace(body
, "\r\n", "\n"));
335 g_string_append(str
, "\n");
337 g_string_append_printf(str
, "MESSAGE END %s %s - %s", marker
, type
, time_str
);
339 SIPE_DEBUG_INFO_NOFORMAT(str
->str
);
340 g_string_free(str
, TRUE
);
345 sipe_strequal(const gchar
*left
, const gchar
*right
)
347 #if GLIB_CHECK_VERSION(2,16,0)
348 return (g_strcmp0(left
, right
) == 0);
350 return ((left
== NULL
&& right
== NULL
) ||
351 (left
!= NULL
&& right
!= NULL
&& strcmp(left
, right
) == 0));
356 sipe_strcase_equal(const gchar
*left
, const gchar
*right
)
358 return ((left
== NULL
&& right
== NULL
) ||
359 (left
!= NULL
&& right
!= NULL
&& g_ascii_strcasecmp(left
, right
) == 0));
362 gint
sipe_strcompare(gconstpointer a
, gconstpointer b
)
364 #if GLIB_CHECK_VERSION(2,16,0)
365 return (g_strcmp0(a
, b
));
376 sipe_utils_str_to_time(const gchar
*timestamp
)
379 gboolean success
= FALSE
;
381 /* g_time_val_from_iso8601() warns about NULL pointer */
385 /* We have to make sure that the ISO8601 contains a time zone offset,
386 otherwise the time is interpreted as local time, not UTC!
387 @TODO: is there a better way to check this? */
388 if (((len
= strlen(timestamp
)) > 0) &&
389 isdigit(timestamp
[len
-1])) {
390 gchar
*tmp
= g_strdup_printf("%sZ", timestamp
);
391 success
= g_time_val_from_iso8601(tmp
, &time
);
394 success
= g_time_val_from_iso8601(timestamp
, &time
);
399 SIPE_DEBUG_ERROR("sipe_utils_str_to_time: failed to parse ISO8601 string '%s'",
400 timestamp
? timestamp
: "");
408 sipe_utils_time_to_str(time_t timestamp
)
410 GTimeVal time
= { timestamp
, 0 };
411 return g_time_val_to_iso8601(&time
);
415 hex_str_to_buff(const char *hex_str
, guint8
**buff
)
422 if (!hex_str
) return 0;
424 length
= strlen(hex_str
)/2;
425 *buff
= (unsigned char *)g_malloc(length
);
426 for (i
= 0; i
< length
; i
++) {
427 two_digits
[0] = hex_str
[i
* 2];
428 two_digits
[1] = hex_str
[i
* 2 + 1];
429 two_digits
[2] = '\0';
430 (*buff
)[i
] = (unsigned char)strtoul(two_digits
, NULL
, 16);
437 buff_to_hex_str(const guint8
*buff
, const size_t buff_len
)
442 if (!buff
) return NULL
;
444 res
= g_malloc(buff_len
* 2 + 1);
445 for (i
= 0, j
= 0; i
< buff_len
; i
++, j
+=2) {
446 sprintf(&res
[j
], "%02X", buff
[i
]);
453 sipe_utils_parse_lines(GSList
**list
, gchar
**lines
, gchar
*delimiter
)
461 for(i
= 0; lines
[i
] && strlen(lines
[i
]) > 2; i
++) {
462 parts
= g_strsplit(lines
[i
], delimiter
, 2);
463 if(!parts
[0] || !parts
[1]) {
469 while(*dummy
==' ' || *dummy
=='\t') dummy
++;
470 dummy2
= g_strdup(dummy
);
471 while(lines
[i
+1] && (lines
[i
+1][0]==' ' || lines
[i
+1][0]=='\t')) {
474 while(*dummy
==' ' || *dummy
=='\t') dummy
++;
475 tmp
= g_strdup_printf("%s %s",dummy2
, dummy
);
479 *list
= sipe_utils_nameval_add(*list
, parts
[0], dummy2
);
488 sipe_utils_nameval_add(GSList
* list
, const gchar
*name
, const gchar
*value
)
490 struct sipnameval
*element
= g_new0(struct sipnameval
,1);
492 /* SANITY CHECK: the calling code must be fixed if this happens! */
494 SIPE_DEBUG_ERROR("sipe_utils_nameval_add: NULL value for %s",
499 element
->name
= g_strdup(name
);
500 element
->value
= g_strdup(value
);
501 return g_slist_append(list
, element
);
505 sipe_utils_nameval_free(GSList
*list
) {
506 struct sipnameval
*elem
;
509 list
= g_slist_remove(list
,elem
);
517 sipe_utils_nameval_find(const GSList
*list
, const gchar
*name
)
519 return sipe_utils_nameval_find_instance (list
, name
, 0);
523 sipe_utils_nameval_find_instance(const GSList
*list
, const gchar
*name
, int which
)
526 struct sipnameval
*elem
;
531 // OCS2005 can send the same header in either all caps or mixed case
532 if (sipe_strcase_equal(elem
->name
, name
)) {
538 tmp
= g_slist_next(tmp
);
543 gchar
*sipe_utils_str_replace(const gchar
*string
,
544 const gchar
*delimiter
,
545 const gchar
*replacement
)
550 if (!string
|| !delimiter
|| !replacement
) return NULL
;
552 split
= g_strsplit(string
, delimiter
, 0);
553 result
= g_strjoinv(replacement
, split
);
559 void sipe_utils_shrink_buffer(struct sipe_transport_connection
*conn
,
562 conn
->buffer_used
-= unread
- conn
->buffer
;
563 /* string terminator is not included in buffer_used */
564 memmove(conn
->buffer
, unread
, conn
->buffer_used
+ 1);
567 gboolean
sipe_utils_ip_is_private(const char *ip
)
569 return g_str_has_prefix(ip
, "10.") ||
570 g_str_has_prefix(ip
, "172.16.") ||
571 g_str_has_prefix(ip
, "192.168.");
574 gchar
*sipe_utils_presence_key(const gchar
*uri
)
576 return g_strdup_printf("<presence><%s>", uri
);
580 sipe_utils_uri_unescape(const gchar
*string
)
588 #if GLIB_CHECK_VERSION(2,16,0)
589 unescaped
= g_uri_unescape_string(string
, NULL
);
591 // based on libpurple/util.c:purple_url_decode()
593 GString
*buf
= g_string_new(NULL
);
594 size_t len
= strlen(string
);
602 if ((len
>= 2) && (c
== '%')) {
603 strncpy(hex
, string
, 2);
604 c
= strtol(hex
, NULL
, 16);
610 g_string_append_c(buf
, c
);
613 unescaped
= g_string_free(buf
, FALSE
);
616 if (unescaped
&& !g_utf8_validate(unescaped
, -1, (const gchar
**)&tmp
))
622 GSList
*sipe_utils_slist_insert_unique_sorted(GSList
*list
,
625 GDestroyNotify destroy
)
627 if (g_slist_find_custom(list
, data
, func
)) {
633 /* unique: list takes ownership of "data" */
634 return(g_slist_insert_sorted(list
, data
, func
));
638 void sipe_utils_slist_free_full(GSList
*list
,
641 #if GLIB_CHECK_VERSION(2,28,0)
642 g_slist_free_full(list
, free
);
644 GSList
*entry
= list
;
646 (*free
)(entry
->data
);