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cpl_switches.h
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cpl_switches.h
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/*
* $Id$
*
* Copyright (C) 2001-2003 FhG Fokus
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio 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 2 of the License, or
* (at your option) any later version
*
* Kamailio 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* History:
* -------
* 2003-06-27: file created (bogdan)
*/
#include "cpl_time.h"
#include "../../core/parser/parse_from.h"
#include "../../core/parser/parse_uri.h"
/* UPDATED + CHECKED
*/
static inline char *run_address_switch(struct cpl_interpreter *intr)
{
static str def_port_str = {"5060", 4};
unsigned short field, subfield;
char *p;
char *kid;
unsigned short attr_name;
unsigned short n;
int i;
int k;
str cpl_val;
str *msg_val;
str *uri;
struct sip_uri parsed_uri;
field = subfield = UNDEF_CHAR;
msg_val = 0;
p = ATTR_PTR(intr->ip);
/* parse the attributes */
for(i = NR_OF_ATTR(intr->ip); i > 0; i--) {
get_basic_attr(p, attr_name, n, intr, script_error);
switch(attr_name) {
case FIELD_ATTR:
if(field != UNDEF_CHAR) {
LM_ERR("multiple FIELD attrs found\n");
goto script_error;
}
field = n;
break;
case SUBFIELD_ATTR:
if(subfield != UNDEF_CHAR) {
LM_ERR("multiple SUBFIELD attrs found\n");
goto script_error;
}
subfield = n;
break;
default:
LM_ERR("unknown attribute "
"(%d) in ADDRESS_SWITCH node\n",
*p);
goto script_error;
}
}
if(field == UNDEF_CHAR) {
LM_ERR("mandatory param FIELD no found\n");
goto script_error;
}
/* test the condition from all the sub-nodes */
for(i = 0; i < NR_OF_KIDS(intr->ip); i++) {
kid = intr->ip + KID_OFFSET(intr->ip, i);
check_overflow_by_ptr(kid + SIMPLE_NODE_SIZE(kid), intr, script_error);
switch(NODE_TYPE(kid)) {
case NOT_PRESENT_NODE:
LM_DBG("NOT_PRESENT node found ->"
"skipping (useless in this case)\n");
break;
case OTHERWISE_NODE:
if(i != NR_OF_KIDS(intr->ip) - 1) {
LM_ERR("OTHERWISE node not found as the last sub-node!\n");
goto script_error;
}
LM_DBG("matching on OTHERWISE node\n");
return get_first_child(kid);
case ADDRESS_NODE:
/* check the number of attributes */
if(NR_OF_ATTR(kid) != 1) {
LM_ERR("incorrect nr of attrs "
"(%d) in ADDRESS node\n",
NR_OF_ATTR(kid));
goto script_error;
}
/* get the attribute name */
p = ATTR_PTR(kid);
get_basic_attr(p, attr_name, cpl_val.len, intr, script_error);
if(attr_name != IS_ATTR && attr_name != CONTAINS_ATTR
&& attr_name != SUBDOMAIN_OF_ATTR) {
LM_ERR("unknown attribute "
"(%d) in ADDRESS node\n",
attr_name);
goto script_error;
}
/* get attribute value */
get_str_attr(p, cpl_val.s, cpl_val.len, intr, script_error, 1);
LM_DBG("testing ADDRESS branch "
" attr_name=%d attr_val=[%.*s](%d)..\n",
attr_name, cpl_val.len, cpl_val.s, cpl_val.len);
/* extract the needed value from the message */
if(!msg_val) {
switch(field) {
case ORIGIN_VAL: /* FROM */
if(!intr->from) {
/* get the header */
if(parse_from_header(intr->msg) < 0)
goto runtime_error;
intr->from = &(get_from(intr->msg)->uri);
}
uri = intr->from;
break;
case DESTINATION_VAL: /* RURI */
if(!intr->ruri)
intr->ruri = GET_RURI(intr->msg);
uri = intr->ruri;
break;
case ORIGINAL_DESTINATION_VAL: /* TO */
if(!intr->to) {
/* get and parse the header */
if(!intr->msg->to
&& (parse_headers(intr->msg, HDR_TO_F,
0) == -1
|| !intr->msg->to)) {
LM_ERR("bad msg or missing TO header\n");
goto runtime_error;
}
intr->to = &(get_to(intr->msg)->uri);
}
uri = intr->to;
break;
default:
LM_ERR("unknown "
"attribute (%d) in ADDRESS node\n",
field);
goto script_error;
}
LM_DBG("extracted uri is <%.*s>\n", uri->len, uri->s);
switch(subfield) {
case UNDEF_CHAR:
msg_val = uri;
break;
case USER_VAL:
if(parse_uri(uri->s, uri->len, &parsed_uri) < 0)
goto runtime_error;
msg_val = &(parsed_uri.user);
break;
case HOST_VAL:
if(parse_uri(uri->s, uri->len, &parsed_uri) < 0)
goto runtime_error;
msg_val = &(parsed_uri.host);
break;
case PORT_VAL:
if(parse_uri(uri->s, uri->len, &parsed_uri) < 0)
goto runtime_error;
if(parsed_uri.port.len != 0)
msg_val = &(parsed_uri.port);
else
msg_val = &def_port_str;
break;
case TEL_VAL:
if(parse_uri(uri->s, uri->len, &parsed_uri) < 0)
goto runtime_error;
if(parsed_uri.user_param_val.len == 5
&& memcmp(parsed_uri.user_param_val.s,
"phone", 5)
== 0)
msg_val = &(parsed_uri.user);
break;
case ADDRESS_TYPE_VAL:
case DISPLAY_VAL:
default:
LM_ERR("unsupported "
"value attribute (%d) in ADDRESS node\n",
subfield);
goto script_error;
}
LM_DBG("extracted val. is <%.*s>\n",
(msg_val == 0) ? 0 : msg_val->len,
(msg_val == 0) ? 0 : msg_val->s);
}
/* does the value from script match the one from message? */
switch(attr_name) {
case IS_ATTR:
if((!msg_val && !cpl_val.s)
|| (msg_val && msg_val->len == cpl_val.len
&& strncasecmp(msg_val->s, cpl_val.s,
cpl_val.len)
== 0)) {
LM_DBG("matching on ADDRESS node (IS)\n");
return get_first_child(kid);
}
break;
case CONTAINS_ATTR:
if(subfield != DISPLAY_VAL) {
LM_WARN("operator "
"CONTAINS applies only to DISPLAY -> "
"ignored\n");
} else {
if(msg_val && cpl_val.len <= msg_val->len
&& strcasestr_str(msg_val, &cpl_val) != 0) {
LM_DBG("matching on "
"ADDRESS node (CONTAINS)\n");
return get_first_child(kid);
}
}
break;
case SUBDOMAIN_OF_ATTR:
switch(subfield) {
case HOST_VAL:
k = msg_val->len - cpl_val.len;
if(k >= 0
&& (k == 0 || msg_val->s[k - 1] == '.')
&& !strncasecmp(cpl_val.s,
msg_val->s + k, cpl_val.len)) {
LM_DBG("matching on "
"ADDRESS node (SUBDOMAIN_OF)\n");
return get_first_child(kid);
}
break;
case TEL_VAL:
if(msg_val == 0)
break;
if(msg_val->len >= cpl_val.len
&& !strncasecmp(cpl_val.s, msg_val->s,
cpl_val.len)) {
LM_DBG("matching on "
"ADDRESS node (SUBDOMAIN_OF)\n");
return get_first_child(kid);
}
break;
default:
LM_WARN("operator SUBDOMAIN_OF applies "
"only to HOST or TEL -> ignored\n");
}
break;
}
break;
default:
LM_ERR("unknown output node type "
"(%d) for ADDRESS_SWITCH node\n",
NODE_TYPE(kid));
goto script_error;
}
}
/* none of the branches of ADDRESS_SWITCH matched -> go for default */
return DEFAULT_ACTION;
runtime_error:
return CPL_RUNTIME_ERROR;
script_error:
return CPL_SCRIPT_ERROR;
}
/* UPDATED + CHECKED
*/
static inline char *run_string_switch(struct cpl_interpreter *intr)
{
unsigned short field;
char *p;
char *kid;
char *not_present_node;
unsigned short attr_name;
int i;
str cpl_val;
str msg_val;
not_present_node = 0;
msg_val.s = 0;
msg_val.len = 0;
/* parse the attribute */
if(NR_OF_ATTR(intr->ip) != 1) {
LM_ERR("node should have 1 attr, not"
" (%d)\n",
NR_OF_ATTR(intr->ip));
goto script_error;
}
p = ATTR_PTR(intr->ip);
get_basic_attr(p, attr_name, field, intr, script_error);
if(attr_name != FIELD_ATTR) {
LM_ERR("unknown param type (%d)"
" for STRING_SWITCH node\n",
*p);
goto script_error;
}
for(i = 0; i < NR_OF_KIDS(intr->ip); i++) {
kid = intr->ip + KID_OFFSET(intr->ip, i);
check_overflow_by_ptr(kid + SIMPLE_NODE_SIZE(kid), intr, script_error);
switch(NODE_TYPE(kid)) {
case NOT_PRESENT_NODE:
if(not_present_node) {
LM_ERR("NOT_PRESENT node found twice!\n");
goto script_error;
}
not_present_node = kid;
break;
case OTHERWISE_NODE:
if(i != NR_OF_KIDS(intr->ip) - 1) {
LM_ERR("OTHERWISE node "
"not found as the last sub-node!\n");
goto script_error;
}
LM_DBG("matching on OTHERWISE node\n");
return get_first_child(kid);
case STRING_NODE:
/* check the number of attributes */
if(NR_OF_ATTR(kid) != 1) {
LM_ERR("incorrect nr of attrs "
"(%d) in STRING node (expected 1)\n",
NR_OF_ATTR(kid));
goto script_error;
}
/* get the attribute name */
p = ATTR_PTR(kid);
get_basic_attr(p, attr_name, cpl_val.len, intr, script_error);
if(attr_name != IS_ATTR && attr_name != CONTAINS_ATTR) {
LM_ERR("unknown attribute "
"(%d) in STRING node\n",
attr_name);
goto script_error;
}
/* get attribute value */
get_str_attr(p, cpl_val.s, cpl_val.len, intr, script_error, 1);
LM_DBG("testing STRING branch "
"attr_name=%d attr_val=[%.*s](%d)..\n",
attr_name, cpl_val.len, cpl_val.s, cpl_val.len);
if(!msg_val.s) {
switch(field) {
case SUBJECT_VAL: /* SUBJECT */
if(intr->subject == STR_NOT_FOUND)
goto not_present;
if(!intr->subject) {
/* get the subject header */
if(!intr->msg->subject) {
if(parse_headers(
intr->msg, HDR_SUBJECT_F, 0)
== -1) {
LM_ERR("bad SUBJECT header\n");
goto runtime_error;
} else if(!intr->msg->subject) {
/* hdr not present */
intr->subject = STR_NOT_FOUND;
goto not_present;
}
}
intr->subject = &(intr->msg->subject->body);
}
trim_len(msg_val.len, msg_val.s, *(intr->subject));
break;
case ORGANIZATION_VAL: /* ORGANIZATION */
if(intr->organization == STR_NOT_FOUND)
goto not_present;
if(!intr->organization) {
/* get the organization header */
if(!intr->msg->organization) {
if(parse_headers(
intr->msg, HDR_ORGANIZATION_F, 0)
== -1) {
LM_ERR("bad ORGANIZATION hdr\n");
goto runtime_error;
} else if(!intr->msg->organization) {
/* hdr not present */
intr->organization = STR_NOT_FOUND;
goto not_present;
}
}
intr->organization =
&(intr->msg->organization->body);
}
trim_len(msg_val.len, msg_val.s,
*(intr->organization));
break;
case USER_AGENT_VAL: /* User Agent */
if(intr->user_agent == STR_NOT_FOUND)
goto not_present;
if(!intr->user_agent) {
/* get the header */
if(!intr->msg->user_agent) {
if(parse_headers(
intr->msg, HDR_USERAGENT_F, 0)
== -1) {
LM_ERR("bad USERAGENT hdr\n");
goto runtime_error;
} else if(!intr->msg->user_agent) {
/* hdr not present */
intr->user_agent = STR_NOT_FOUND;
goto not_present;
}
}
intr->user_agent =
&(intr->msg->user_agent->body);
}
trim_len(msg_val.len, msg_val.s,
*(intr->user_agent));
break;
default:
LM_ERR("unknown "
"attribute (%d) in STRING node\n",
field);
goto script_error;
}
LM_DBG("extracted msg string is "
"<%.*s>\n",
msg_val.len, msg_val.s);
}
/* does the value from script match the one from message? */
switch(attr_name) {
case IS_ATTR:
if((!msg_val.s && !cpl_val.s)
|| (msg_val.len == cpl_val.len
&& strncasecmp(msg_val.s, cpl_val.s,
cpl_val.len)
== 0)) {
LM_DBG("matching on STRING node (IS)\n");
return get_first_child(kid);
}
break;
case CONTAINS_ATTR:
if(cpl_val.len <= msg_val.len
&& strcasestr_str(&msg_val, &cpl_val) != 0) {
LM_DBG("matching on STRING node (CONTAINS)\n");
return get_first_child(kid);
}
break;
}
break;
default:
LM_ERR("unknown output node type "
"(%d) for STRING_SWITCH node\n",
NODE_TYPE(kid));
goto script_error;
}
}
/* none of the branches of STRING_SWITCH matched -> go for default */
return DEFAULT_ACTION;
not_present:
LM_DBG("required hdr not present in sip msg\n");
if(not_present_node)
return get_first_child(not_present_node);
/* look for the NOT_PRESENT node */
LM_DBG("searching for NOT_PRESENT sub-node..\n");
for(; i < NR_OF_KIDS(intr->ip); i++) {
kid = intr->ip + KID_OFFSET(intr->ip, i);
check_overflow_by_ptr(kid + SIMPLE_NODE_SIZE(kid), intr, script_error);
if(NODE_TYPE(kid) == NOT_PRESENT_NODE)
return get_first_child(kid);
}
return DEFAULT_ACTION;
runtime_error:
return CPL_RUNTIME_ERROR;
script_error:
return CPL_SCRIPT_ERROR;
}
/* UPDATED + CHECKED
*/
static inline char *run_priority_switch(struct cpl_interpreter *intr)
{
static str default_val = {"normal", 6};
unsigned short n;
char *p;
char *kid;
char *not_present_node;
unsigned short attr_name;
unsigned short attr_val;
unsigned short msg_attr_val;
unsigned short msg_prio;
int i;
str cpl_val = {0, 0};
str msg_val = {0, 0};
not_present_node = 0;
msg_attr_val = NORMAL_VAL;
for(i = 0; i < NR_OF_KIDS(intr->ip); i++) {
kid = intr->ip + KID_OFFSET(intr->ip, i);
check_overflow_by_ptr(kid + SIMPLE_NODE_SIZE(kid), intr, script_error);
switch(NODE_TYPE(kid)) {
case NOT_PRESENT_NODE:
if(not_present_node) {
LM_ERR("NOT_PRESENT node found twice!\n");
goto script_error;
}
not_present_node = kid;
break;
case OTHERWISE_NODE:
if(i != NR_OF_KIDS(intr->ip) - 1) {
LM_ERR("OTHERWISE node not found as the last sub-node!\n");
goto script_error;
}
LM_DBG("matching on OTHERWISE node\n");
return get_first_child(kid);
case PRIORITY_NODE:
if(NR_OF_ATTR(kid) != 1)
goto script_error;
/* get the attribute */
p = ATTR_PTR(kid);
get_basic_attr(p, attr_name, attr_val, intr, script_error);
if(attr_name != LESS_ATTR && attr_name != GREATER_ATTR
&& attr_name != EQUAL_ATTR) {
LM_ERR("unknown attribute "
"(%d) in PRIORITY node\n",
attr_name);
goto script_error;
}
/* attribute's encoded value */
if(attr_val != EMERGENCY_VAL && attr_val != URGENT_VAL
&& attr_val != NORMAL_VAL && attr_val != NON_URGENT_VAL
&& attr_val != UNKNOWN_PRIO_VAL) {
LM_ERR("unknown encoded "
"value (%d) for attribute (*d) in PRIORITY node\n",
*p);
goto script_error;
}
if(attr_val == UNKNOWN_PRIO_VAL) {
if(attr_name != EQUAL_ATTR) {
LM_ERR("bad PRIORITY"
" branch: attr=EQUAL doesn't match "
"val=UNKNOWN\n");
goto script_error;
}
/* if the attr is UNKNOWN, its string value is present */
get_basic_attr(p, n, cpl_val.len, intr, script_error);
if(n != PRIOSTR_ATTR) {
LM_ERR("expected PRIOSTR"
"(%d) attr, found (%d)\n",
PRIOSTR_ATTR, n);
goto script_error;
}
get_str_attr(
p, cpl_val.s, cpl_val.len, intr, script_error, 1);
}
LM_DBG("testing PRIORITY branch "
"(attr=%d,val=%d) [%.*s](%d)..\n",
attr_name, attr_val, cpl_val.len, cpl_val.s,
cpl_val.len);
if(!msg_val.s) {
if(!intr->priority) {
/* get the PRIORITY header from message */
if(!intr->msg->priority) {
if(parse_headers(intr->msg, HDR_PRIORITY_F, 0)
== -1) {
LM_ERR("bad sip msg or PRIORITY header !\n");
goto runtime_error;
} else if(!intr->msg->priority) {
LM_NOTICE("missing PRIORITY header -> using "
"default value \"normal\"!\n");
intr->priority = &default_val;
} else {
intr->priority = &(intr->msg->priority->body);
}
} else {
intr->priority = &(intr->msg->priority->body);
}
}
trim_len(msg_val.len, msg_val.s, *(intr->priority));
/* encode attribute's value from SIP message */
if(msg_val.len == EMERGENCY_STR_LEN
&& !strncasecmp(
msg_val.s, EMERGENCY_STR, msg_val.len)) {
msg_attr_val = EMERGENCY_VAL;
} else if(msg_val.len == URGENT_STR_LEN
&& !strncasecmp(
msg_val.s, URGENT_STR, msg_val.len)) {
msg_attr_val = URGENT_VAL;
} else if(msg_val.len == NORMAL_STR_LEN
&& !strncasecmp(
msg_val.s, NORMAL_STR, msg_val.len)) {
msg_attr_val = NORMAL_VAL;
} else if(msg_val.len == NON_URGENT_STR_LEN
&& !strncasecmp(
msg_val.s, NON_URGENT_STR, msg_val.len)) {
msg_attr_val = NON_URGENT_VAL;
} else {
msg_attr_val = UNKNOWN_PRIO_VAL;
}
LM_DBG("extracted msg priority is "
"<%.*s> decoded as [%d]\n",
msg_val.len, msg_val.s, msg_attr_val);
}
LM_DBG("using msg string <%.*s>\n", msg_val.len, msg_val.s);
/* attr_val (from cpl) cannot be UNKNOWN - we already
* check it -> check only for msg_attr_val for non-EQUAL op */
if(msg_attr_val == UNKNOWN_PRIO_VAL
&& attr_name != EQUAL_ATTR) {
LM_NOTICE(
"UNKNOWN "
"value found in sip_msg when string a LESS/GREATER "
"cmp -> force the value to default \"normal\"\n");
msg_prio = NORMAL_VAL;
} else {
msg_prio = msg_attr_val;
}
/* does the value from script match the one from message? */
switch(attr_name) {
case LESS_ATTR:
switch(attr_val) {
case EMERGENCY_VAL:
if(msg_prio != EMERGENCY_VAL)
break; /*OK*/
else
continue; /* for cycle for all kids */
case URGENT_VAL:
if(msg_prio != EMERGENCY_VAL
&& msg_prio != URGENT_VAL)
break; /* OK */
else
continue; /* for cycle for all kids */
case NORMAL_VAL:
if(msg_prio == NON_URGENT_VAL)
break; /*OK*/
else
continue; /* for cycle for all kids */
case NON_URGENT_VAL:
continue; /* for cycle for all kids */
}
break;
case GREATER_ATTR:
switch(attr_val) {
case EMERGENCY_VAL:
continue; /* for cycle for all kids */
case URGENT_VAL:
if(msg_prio != EMERGENCY_VAL)
break; /*OK*/
else
continue; /* for cycle for all kids */
case NORMAL_VAL:
if(msg_prio != NON_URGENT_VAL
&& msg_prio != NORMAL_VAL)
break; /*OK*/
else
continue; /* for cycle for all kids */
case NON_URGENT_VAL:
if(msg_prio != NON_URGENT_VAL)
break; /*OK*/
else
continue; /* for cycle for all kids */
}
break;
case EQUAL_ATTR:
if(attr_val == msg_prio) {
if(attr_val == UNKNOWN_PRIO_VAL) {
if(msg_val.len == cpl_val.len
&& !strncasecmp(msg_val.s, cpl_val.s,
msg_val.len)) {
break; /* OK */
}
} else {
break; /* OK */
}
}
continue; /* for cycle for all kids */
break;
} /* end switch for attr_name */
LM_DBG("matching current PRIORITY node\n");
return get_first_child(kid);
break;
default:
LM_ERR("unknown output node type"
" (%d) for PRIORITY_SWITCH node\n",
NODE_TYPE(kid));
goto script_error;
} /* end switch for NODE_TYPE */
} /* end for for all kids */
/* none of the branches of PRIORITY_SWITCH matched -> go for default */
return DEFAULT_ACTION;
runtime_error:
return CPL_RUNTIME_ERROR;
script_error:
return CPL_SCRIPT_ERROR;
}
inline static int set_TZ(char *tz_env)
{
LM_DBG("switching TZ as \"%s\"\n", tz_env);
if(putenv(tz_env) == -1) {
LM_ERR("setenv failed -> unable to set TZ "
" \"%s\"\n",
tz_env);
return -1;
}
tzset(); /* just to be sure */
return 0;
}
/* UPDATED + CHECKED
*/
static inline char *run_time_switch(struct cpl_interpreter *intr)
{
char *p;
char *kid;
char *attr_str;
unsigned short attr_name;
unsigned short attr_len;
unsigned char flags = 0;
int nr_attrs;
int i, j;
str user_tz = {0, 0};
cpl_ac_tm_t att;
cpl_tmrec_t trt;
memset(&att, 0, sizeof(cpl_ac_tm_t));
memset(&trt, 0, sizeof(cpl_tmrec_t));
LM_DBG("checking recv. time stamp <%llu>\n",
(unsigned long long)intr->recv_time);
switch(NR_OF_ATTR(intr->ip)) {
case 1:
p = ATTR_PTR(intr->ip);
get_basic_attr(p, attr_name, user_tz.len, intr, script_error);
if(attr_name != TZID_ATTR) {
LM_ERR("bad attribute -> "
" expected=%d, found=%d\n",
TZID_ATTR, attr_name);
goto script_error;
}
get_str_attr(p, user_tz.s, user_tz.len, intr, script_error, 1);
case 0:
break;
default:
LM_ERR("incorrect number of attr ->"
" found=%d expected=(0,1)\n",
NR_OF_ATTR(intr->ip));
goto script_error;
}
if(user_tz.s && user_tz.len) {
if(set_TZ(user_tz.s) == -1)
goto runtime_error;
flags |= (1 << 7);
}
for(i = 0; i < NR_OF_KIDS(intr->ip); i++) {
kid = intr->ip + KID_OFFSET(intr->ip, i);
check_overflow_by_ptr(kid + SIMPLE_NODE_SIZE(kid), intr, script_error);
switch(NODE_TYPE(kid)) {
case NOT_PRESENT_NODE:
LM_DBG("NOT_PRESENT node found ->"
"skipping (useless in this case)\n");
break;
case OTHERWISE_NODE:
if(i != NR_OF_KIDS(intr->ip) - 1) {
LM_ERR("OTHERWISE node "
"not found as the last sub-node!\n");
goto script_error;
}
LM_DBG("matching on OTHERWISE node\n");
return get_first_child(kid);
case TIME_NODE:
/* init structures */
memset(&att, 0, sizeof(att));
memset(&trt, 0, sizeof(trt));
if(cpl_ac_tm_set_time(&att, intr->recv_time))
goto runtime_error;
/* let's see how many attributes we have */
nr_attrs = NR_OF_ATTR(kid);
/* get the attributes */
p = ATTR_PTR(kid);
for(j = 0; j < nr_attrs; j++) {
/* get the attribute */
get_basic_attr(p, attr_name, attr_len, intr, script_error);
get_str_attr(p, attr_str, attr_len, intr, script_error, 1);
/* process the attribute */
LM_DBG("attribute [%d] found :"
"[%s]\n",
attr_name, attr_str);
switch(attr_name) {
case DTSTART_ATTR:
if(!attr_str
|| cpl_tr_parse_dtstart(&trt, attr_str))
goto parse_err;
flags ^= (1 << 0);
break;
case DTEND_ATTR:
if(!attr_str || cpl_tr_parse_dtend(&trt, attr_str))
goto parse_err;
flags ^= (1 << 1);
break;
case DURATION_ATTR:
if(!attr_str
|| cpl_tr_parse_duration(&trt, attr_str))
goto parse_err;
flags ^= (1 << 1);
break;
case FREQ_ATTR:
if(attr_str && cpl_tr_parse_freq(&trt, attr_str))
goto parse_err;
break;
case UNTIL_ATTR:
if(attr_str && cpl_tr_parse_until(&trt, attr_str))
goto parse_err;
break;
case INTERVAL_ATTR:
if(attr_str
&& cpl_tr_parse_interval(&trt, attr_str))
goto parse_err;
break;
case BYDAY_ATTR:
if(attr_str && cpl_tr_parse_byday(&trt, attr_str))
goto parse_err;
break;
case BYMONTHDAY_ATTR:
if(attr_str && cpl_tr_parse_bymday(&trt, attr_str))
goto parse_err;
break;
case BYYEARDAY_ATTR:
if(attr_str && cpl_tr_parse_byyday(&trt, attr_str))
goto parse_err;
break;
case BYMONTH_ATTR:
if(attr_str && cpl_tr_parse_bymonth(&trt, attr_str))
goto parse_err;
break;
case BYWEEKNO_ATTR:
if(attr_str
&& cpl_tr_parse_byweekno(&trt, attr_str))
goto parse_err;
break;
case WKST_ATTR:
if(attr_str && cpl_tr_parse_wkst(&trt, attr_str))
goto parse_err;
break;
default:
LM_ERR("unsupported attribute [%d] found in TIME "
"node\n",
attr_name);
goto script_error;
} /* end attribute switch */
} /* end for*/
/* check the mandatory attributes */
if((flags & 0x03) != ((1 << 0) | (1 << 1))) {
LM_ERR("attribute DTSTART"
",DTEND,DURATION missing or multi-present\n");
goto script_error;
}
/* does the recv_time match the specified interval? */
j = cpl_check_tmrec(&trt, &att, 0);
/* restore the orig TZ */
if((flags & (1 << 7)) && cpl_env.orig_tz.s
&& (cpl_env.orig_tz.len > 3))
set_TZ(cpl_env.orig_tz.s);
/* reset flags */
flags &= (1 << 7);
/* free structs that I don't need any more */
cpl_ac_tm_free(&att);
cpl_tmrec_free(&trt);
/* let's see the result ;-) */
switch(j) {
case 0:
LM_DBG("matching current TIME node\n");
return get_first_child(kid);
case -1:
LM_ERR("check_tmrec "
"ret. err. when testing time cond. !\n");
goto runtime_error;
break;
case 1:
LM_DBG("time cond. doesn't match !\n");
break;
}
break;
default:
LM_ERR("unknown output node"
" type (%d) for PRIORITY_SWITCH node\n",
NODE_TYPE(kid));
goto script_error;
} /* end switch for NODE_TYPE */
} /* end for for all kids */
/* none of the branches of TIME_SWITCH matched -> go for default */
cpl_ac_tm_free(&att);
cpl_tmrec_free(&trt);
return DEFAULT_ACTION;
runtime_error:
if((flags & (1 << 7)) && cpl_env.orig_tz.s && (cpl_env.orig_tz.len > 3))
set_TZ(cpl_env.orig_tz.s);
cpl_ac_tm_free(&att);
cpl_tmrec_free(&trt);
return CPL_RUNTIME_ERROR;
parse_err:
LM_ERR("error parsing attr [%d][%s]\n", attr_name,
attr_str ? (char *)attr_str : "NULL");
script_error:
if((flags & (1 << 7)) && cpl_env.orig_tz.s && (cpl_env.orig_tz.len > 3))
set_TZ(cpl_env.orig_tz.s);
cpl_ac_tm_free(&att);
cpl_tmrec_free(&trt);
return CPL_SCRIPT_ERROR;
}
inline static int is_lang_tag_matching(
str *range, str *cpl_tag, str *cpl_subtag)
{
char *c;
char *end;
str tag = {0, 0};
str subtag = {0, 0};
if(range == NULL || cpl_tag == NULL || cpl_subtag == NULL) {
return -1;
}
if(range->s == NULL || cpl_tag->s == NULL || cpl_subtag->s == NULL) {
return -1;
}
c = range->s;
end = range->s + range->len;
while(c < end) {
/* eat all spaces to first letter */
while(c < end && (*c == ' ' || *c == '\t'))
c++;
if(c == end)
goto error;
/* init tag and subtag */
tag.len = 0;
subtag.len = 0;
/* get the tag */
tag.s = c;
if(*c == '*' && (c + 1 == end || *(c + 1) != '-')) {
tag.len++;
c++;
} else
while(c < end && ((*c) | 0x20) >= 'a' && ((*c) | 0x20) <= 'z') {
/*DBG("--- tag ---> <%c>[%d]\n",*c,*c);*/
tag.len++;
c++;
}
if(tag.len == 0)
goto error;
if(c < end && *c == '-') {
/* go for the subtag */
subtag.s = ++c;
while(c < end && ((*c) | 0x20) >= 'a' && ((*c) | 0x20) <= 'z') {
/*DBG("--- subtag ---> <%c>[%d]\n",*c,*c);*/
subtag.len++;
c++;
}
if(subtag.len == 0)
goto error;
} else {
subtag.s = 0;
}
if(c < end && *c == ';') {
/* eat all the params to the ',' */
while(c < end && *c != ',')
c++;
if(c == end)
goto no_matche;
}
while(c < end && (*c == ' ' || *c == '\t'))
c++;
if(c == end || *c == ',') {
/* do compare */
LM_DBG("testing range [%.*s]-[%.*s] against tag [%.*s]-[%.*s]\n",
tag.len, tag.s, subtag.len, subtag.s, cpl_tag->len,
cpl_tag->s, cpl_subtag->len, cpl_subtag->s);
/* language range of "*" is ignored for the purpose of matching*/
if(!(tag.len == 1 && *tag.s == '*')) {
/* does the language tag matches ? */
if(tag.len == cpl_tag->len
&& !strncasecmp(tag.s, cpl_tag->s, tag.len)) {
/* if the subtag of the range is void -> matche */
if(subtag.len == 0)
return 1;
/* the subtags equals -> matche */
if(subtag.len == cpl_subtag->len
&& !strncasecmp(