Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pjsip-simple/presence.h> |
| 21 | #include <pjsip-simple/errno.h> |
| 22 | #include <pjsip/sip_msg.h> |
| 23 | #include <pjsip/sip_transport.h> |
| 24 | #include <pj/guid.h> |
| 25 | #include <pj/log.h> |
| 26 | #include <pj/os.h> |
| 27 | #include <pj/pool.h> |
| 28 | #include <pj/string.h> |
| 29 | |
| 30 | |
| 31 | #define THIS_FILE "presence_body.c" |
| 32 | |
| 33 | |
| 34 | static const pj_str_t STR_APPLICATION = { "application", 11 }; |
| 35 | static const pj_str_t STR_PIDF_XML = { "pidf+xml", 8 }; |
| 36 | static const pj_str_t STR_XPIDF_XML = { "xpidf+xml", 9 }; |
| 37 | |
| 38 | |
| 39 | |
| 40 | |
| 41 | /* |
| 42 | * Function to print XML message body. |
| 43 | */ |
| 44 | static int pres_print_body(struct pjsip_msg_body *msg_body, |
| 45 | char *buf, pj_size_t size) |
| 46 | { |
| 47 | return pj_xml_print((const pj_xml_node*)msg_body->data, buf, size, |
| 48 | PJ_TRUE); |
| 49 | } |
| 50 | |
| 51 | |
| 52 | /* |
| 53 | * Function to clone XML document. |
| 54 | */ |
| 55 | static void* xml_clone_data(pj_pool_t *pool, const void *data, unsigned len) |
| 56 | { |
| 57 | PJ_UNUSED_ARG(len); |
| 58 | return pj_xml_clone( pool, (const pj_xml_node*) data); |
| 59 | } |
| 60 | |
| 61 | |
| 62 | /* |
| 63 | * This is a utility function to create PIDF message body from PJSIP |
| 64 | * presence status (pjsip_pres_status). |
| 65 | */ |
| 66 | PJ_DEF(pj_status_t) pjsip_pres_create_pidf( pj_pool_t *pool, |
| 67 | const pjsip_pres_status *status, |
| 68 | const pj_str_t *entity, |
| 69 | pjsip_msg_body **p_body ) |
| 70 | { |
| 71 | pjpidf_pres *pidf; |
| 72 | pjsip_msg_body *body; |
| 73 | unsigned i; |
| 74 | |
| 75 | /* Create <presence>. */ |
| 76 | pidf = pjpidf_create(pool, entity); |
| 77 | |
| 78 | /* Create <tuple> */ |
| 79 | for (i=0; i<status->info_cnt; ++i) { |
| 80 | |
| 81 | pjpidf_tuple *pidf_tuple; |
| 82 | pjpidf_status *pidf_status; |
| 83 | pj_str_t id; |
| 84 | |
| 85 | /* Add tuple id. */ |
| 86 | if (status->info[i].id.slen == 0) { |
| 87 | /* xs:ID must start with letter */ |
| 88 | //pj_create_unique_string(pool, &id); |
| 89 | id.ptr = (char*)pj_pool_alloc(pool, PJ_GUID_STRING_LENGTH+2); |
| 90 | id.ptr += 2; |
| 91 | pj_generate_unique_string(&id); |
| 92 | id.ptr -= 2; |
| 93 | id.ptr[0] = 'p'; |
| 94 | id.ptr[1] = 'j'; |
| 95 | id.slen += 2; |
| 96 | } else { |
| 97 | id = status->info[i].id; |
| 98 | } |
| 99 | |
| 100 | pidf_tuple = pjpidf_pres_add_tuple(pool, pidf, &id); |
| 101 | |
| 102 | /* Set <contact> */ |
| 103 | if (status->info[i].contact.slen) |
| 104 | pjpidf_tuple_set_contact(pool, pidf_tuple, |
| 105 | &status->info[i].contact); |
| 106 | |
| 107 | |
| 108 | /* Set basic status */ |
| 109 | pidf_status = pjpidf_tuple_get_status(pidf_tuple); |
| 110 | pjpidf_status_set_basic_open(pidf_status, |
| 111 | status->info[i].basic_open); |
| 112 | |
| 113 | /* Add <timestamp> if configured */ |
| 114 | #if defined(PJSIP_PRES_PIDF_ADD_TIMESTAMP) && PJSIP_PRES_PIDF_ADD_TIMESTAMP |
| 115 | if (PJSIP_PRES_PIDF_ADD_TIMESTAMP) { |
| 116 | char buf[50]; |
| 117 | int tslen = 0; |
| 118 | pj_time_val tv; |
| 119 | pj_parsed_time pt; |
| 120 | |
| 121 | pj_gettimeofday(&tv); |
| 122 | /* TODO: convert time to GMT! (unsupported by pjlib) */ |
| 123 | pj_time_decode( &tv, &pt); |
| 124 | |
| 125 | tslen = pj_ansi_snprintf(buf, sizeof(buf), |
| 126 | "%04d-%02d-%02dT%02d:%02d:%02d.%03dZ", |
| 127 | pt.year, pt.mon+1, pt.day, |
| 128 | pt.hour, pt.min, pt.sec, pt.msec); |
| 129 | if (tslen > 0 && tslen < (int)sizeof(buf)) { |
| 130 | pj_str_t time = pj_str(buf); |
| 131 | pjpidf_tuple_set_timestamp(pool, pidf_tuple, &time); |
| 132 | } |
| 133 | } |
| 134 | #endif |
| 135 | } |
| 136 | |
| 137 | /* Create <person> (RPID) */ |
| 138 | if (status->info_cnt) { |
| 139 | pjrpid_add_element(pidf, pool, 0, &status->info[0].rpid); |
| 140 | } |
| 141 | |
| 142 | body = PJ_POOL_ZALLOC_T(pool, pjsip_msg_body); |
| 143 | body->data = pidf; |
| 144 | body->content_type.type = STR_APPLICATION; |
| 145 | body->content_type.subtype = STR_PIDF_XML; |
| 146 | body->print_body = &pres_print_body; |
| 147 | body->clone_data = &xml_clone_data; |
| 148 | |
| 149 | *p_body = body; |
| 150 | |
| 151 | return PJ_SUCCESS; |
| 152 | } |
| 153 | |
| 154 | |
| 155 | /* |
| 156 | * This is a utility function to create X-PIDF message body from PJSIP |
| 157 | * presence status (pjsip_pres_status). |
| 158 | */ |
| 159 | PJ_DEF(pj_status_t) pjsip_pres_create_xpidf( pj_pool_t *pool, |
| 160 | const pjsip_pres_status *status, |
| 161 | const pj_str_t *entity, |
| 162 | pjsip_msg_body **p_body ) |
| 163 | { |
| 164 | /* Note: PJSIP implementation of XPIDF is not complete! |
| 165 | */ |
| 166 | pjxpidf_pres *xpidf; |
| 167 | pjsip_msg_body *body; |
| 168 | |
| 169 | PJ_LOG(4,(THIS_FILE, "Warning: XPIDF format is not fully supported " |
| 170 | "by PJSIP")); |
| 171 | |
| 172 | /* Create XPIDF document. */ |
| 173 | xpidf = pjxpidf_create(pool, entity); |
| 174 | |
| 175 | /* Set basic status. */ |
| 176 | if (status->info_cnt > 0) |
| 177 | pjxpidf_set_status( xpidf, status->info[0].basic_open); |
| 178 | else |
| 179 | pjxpidf_set_status( xpidf, PJ_FALSE); |
| 180 | |
| 181 | body = PJ_POOL_ZALLOC_T(pool, pjsip_msg_body); |
| 182 | body->data = xpidf; |
| 183 | body->content_type.type = STR_APPLICATION; |
| 184 | body->content_type.subtype = STR_XPIDF_XML; |
| 185 | body->print_body = &pres_print_body; |
| 186 | body->clone_data = &xml_clone_data; |
| 187 | |
| 188 | *p_body = body; |
| 189 | |
| 190 | return PJ_SUCCESS; |
| 191 | } |
| 192 | |
| 193 | |
| 194 | |
| 195 | /* |
| 196 | * This is a utility function to parse PIDF body into PJSIP presence status. |
| 197 | */ |
| 198 | PJ_DEF(pj_status_t) pjsip_pres_parse_pidf( pjsip_rx_data *rdata, |
| 199 | pj_pool_t *pool, |
| 200 | pjsip_pres_status *pres_status) |
| 201 | { |
| 202 | return pjsip_pres_parse_pidf2((char*)rdata->msg_info.msg->body->data, |
| 203 | rdata->msg_info.msg->body->len, |
| 204 | pool, pres_status); |
| 205 | } |
| 206 | |
| 207 | PJ_DEF(pj_status_t) pjsip_pres_parse_pidf2(char *body, unsigned body_len, |
| 208 | pj_pool_t *pool, |
| 209 | pjsip_pres_status *pres_status) |
| 210 | { |
| 211 | pjpidf_pres *pidf; |
| 212 | pjpidf_tuple *pidf_tuple; |
| 213 | |
| 214 | pidf = pjpidf_parse(pool, body, body_len); |
| 215 | if (pidf == NULL) |
| 216 | return PJSIP_SIMPLE_EBADPIDF; |
| 217 | |
| 218 | pres_status->info_cnt = 0; |
| 219 | |
| 220 | pidf_tuple = pjpidf_pres_get_first_tuple(pidf); |
| 221 | while (pidf_tuple && pres_status->info_cnt < PJSIP_PRES_STATUS_MAX_INFO) { |
| 222 | pjpidf_status *pidf_status; |
| 223 | |
| 224 | pres_status->info[pres_status->info_cnt].tuple_node = |
| 225 | pj_xml_clone(pool, pidf_tuple); |
| 226 | |
| 227 | pj_strdup(pool, |
| 228 | &pres_status->info[pres_status->info_cnt].id, |
| 229 | pjpidf_tuple_get_id(pidf_tuple)); |
| 230 | |
| 231 | pj_strdup(pool, |
| 232 | &pres_status->info[pres_status->info_cnt].contact, |
| 233 | pjpidf_tuple_get_contact(pidf_tuple)); |
| 234 | |
| 235 | pidf_status = pjpidf_tuple_get_status(pidf_tuple); |
| 236 | if (pidf_status) { |
| 237 | pres_status->info[pres_status->info_cnt].basic_open = |
| 238 | pjpidf_status_is_basic_open(pidf_status); |
| 239 | } else { |
| 240 | pres_status->info[pres_status->info_cnt].basic_open = PJ_FALSE; |
| 241 | } |
| 242 | |
| 243 | pidf_tuple = pjpidf_pres_get_next_tuple( pidf, pidf_tuple ); |
| 244 | pres_status->info_cnt++; |
| 245 | } |
| 246 | |
| 247 | /* Parse <person> (RPID) */ |
| 248 | pjrpid_get_element(pidf, pool, &pres_status->info[0].rpid); |
| 249 | |
| 250 | return PJ_SUCCESS; |
| 251 | } |
| 252 | |
| 253 | |
| 254 | /* |
| 255 | * This is a utility function to parse X-PIDF body into PJSIP presence status. |
| 256 | */ |
| 257 | PJ_DEF(pj_status_t) pjsip_pres_parse_xpidf(pjsip_rx_data *rdata, |
| 258 | pj_pool_t *pool, |
| 259 | pjsip_pres_status *pres_status) |
| 260 | { |
| 261 | return pjsip_pres_parse_xpidf2((char*)rdata->msg_info.msg->body->data, |
| 262 | rdata->msg_info.msg->body->len, |
| 263 | pool, pres_status); |
| 264 | } |
| 265 | |
| 266 | PJ_DEF(pj_status_t) pjsip_pres_parse_xpidf2(char *body, unsigned body_len, |
| 267 | pj_pool_t *pool, |
| 268 | pjsip_pres_status *pres_status) |
| 269 | { |
| 270 | pjxpidf_pres *xpidf; |
| 271 | |
| 272 | xpidf = pjxpidf_parse(pool, body, body_len); |
| 273 | if (xpidf == NULL) |
| 274 | return PJSIP_SIMPLE_EBADXPIDF; |
| 275 | |
| 276 | pres_status->info_cnt = 1; |
| 277 | |
| 278 | pj_strdup(pool, |
| 279 | &pres_status->info[0].contact, |
| 280 | pjxpidf_get_uri(xpidf)); |
| 281 | pres_status->info[0].basic_open = pjxpidf_get_status(xpidf); |
| 282 | pres_status->info[0].id.slen = 0; |
| 283 | pres_status->info[0].tuple_node = NULL; |
| 284 | |
| 285 | return PJ_SUCCESS; |
| 286 | } |
| 287 | |
| 288 | |