diff options
Diffstat (limited to 'pjsip/src/pjsip-simple/evsub_msg.c')
| -rw-r--r-- | pjsip/src/pjsip-simple/evsub_msg.c | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/pjsip/src/pjsip-simple/evsub_msg.c b/pjsip/src/pjsip-simple/evsub_msg.c new file mode 100644 index 0000000..d91afa9 --- /dev/null +++ b/pjsip/src/pjsip-simple/evsub_msg.c @@ -0,0 +1,304 @@ +/* $Id: evsub_msg.c 3841 2011-10-24 09:28:13Z ming $ */ +/* + * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) + * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> + * + * This program 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. + * + * This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <pjsip-simple/evsub_msg.h> +#include <pjsip/print_util.h> +#include <pjsip/sip_parser.h> +#include <pjlib-util/string.h> +#include <pj/pool.h> +#include <pj/string.h> +#include <pj/except.h> + +/* + * Event header. + */ +static int pjsip_event_hdr_print( pjsip_event_hdr *hdr, + char *buf, pj_size_t size); +static pjsip_event_hdr* pjsip_event_hdr_clone( pj_pool_t *pool, + const pjsip_event_hdr *hdr); +static pjsip_event_hdr* pjsip_event_hdr_shallow_clone( pj_pool_t *pool, + const pjsip_event_hdr*); + +static pjsip_hdr_vptr event_hdr_vptr = +{ + (pjsip_hdr_clone_fptr) &pjsip_event_hdr_clone, + (pjsip_hdr_clone_fptr) &pjsip_event_hdr_shallow_clone, + (pjsip_hdr_print_fptr) &pjsip_event_hdr_print, +}; + + +PJ_DEF(pjsip_event_hdr*) pjsip_event_hdr_create(pj_pool_t *pool) +{ + pjsip_event_hdr *hdr = PJ_POOL_ZALLOC_T(pool, pjsip_event_hdr); + hdr->type = PJSIP_H_OTHER; + hdr->name.ptr = "Event"; + hdr->name.slen = 5; + hdr->sname.ptr = "o"; + hdr->sname.slen = 1; + hdr->vptr = &event_hdr_vptr; + pj_list_init(hdr); + pj_list_init(&hdr->other_param); + return hdr; +} + +static int pjsip_event_hdr_print( pjsip_event_hdr *hdr, + char *buf, pj_size_t size) +{ + char *p = buf; + char *endbuf = buf+size; + int printed; + const pjsip_parser_const_t *pc = pjsip_parser_const(); + + copy_advance(p, hdr->name); + *p++ = ':'; + *p++ = ' '; + + copy_advance(p, hdr->event_type); + copy_advance_pair(p, ";id=", 4, hdr->id_param); + + printed = pjsip_param_print_on(&hdr->other_param, p, endbuf-p, + &pc->pjsip_TOKEN_SPEC, + &pc->pjsip_TOKEN_SPEC, ';'); + if (printed < 0) + return printed; + + p += printed; + return p - buf; +} + +static pjsip_event_hdr* pjsip_event_hdr_clone( pj_pool_t *pool, + const pjsip_event_hdr *rhs) +{ + pjsip_event_hdr *hdr = pjsip_event_hdr_create(pool); + pj_strdup(pool, &hdr->event_type, &rhs->event_type); + pj_strdup(pool, &hdr->id_param, &rhs->id_param); + pjsip_param_clone(pool, &hdr->other_param, &rhs->other_param); + return hdr; +} + +static pjsip_event_hdr* +pjsip_event_hdr_shallow_clone( pj_pool_t *pool, + const pjsip_event_hdr *rhs ) +{ + pjsip_event_hdr *hdr = PJ_POOL_ALLOC_T(pool, pjsip_event_hdr); + pj_memcpy(hdr, rhs, sizeof(*hdr)); + pjsip_param_shallow_clone(pool, &hdr->other_param, &rhs->other_param); + return hdr; +} + + +/* + * Allow-Events header. + */ +PJ_DEF(pjsip_allow_events_hdr*) pjsip_allow_events_hdr_create(pj_pool_t *pool) +{ + const pj_str_t STR_ALLOW_EVENTS = { "Allow-Events", 12}; + pjsip_allow_events_hdr *hdr; + + hdr = pjsip_generic_array_hdr_create(pool, &STR_ALLOW_EVENTS); + + if (hdr) { + hdr->sname.ptr = "u"; + hdr->sname.slen = 1; + } + + return hdr; +} + + +/* + * Subscription-State header. + */ +static int pjsip_sub_state_hdr_print(pjsip_sub_state_hdr *hdr, + char *buf, pj_size_t size); +static pjsip_sub_state_hdr* +pjsip_sub_state_hdr_clone(pj_pool_t *pool, + const pjsip_sub_state_hdr *hdr); +static pjsip_sub_state_hdr* +pjsip_sub_state_hdr_shallow_clone(pj_pool_t *pool, + const pjsip_sub_state_hdr*); + +static pjsip_hdr_vptr sub_state_hdr_vptr = +{ + (pjsip_hdr_clone_fptr) &pjsip_sub_state_hdr_clone, + (pjsip_hdr_clone_fptr) &pjsip_sub_state_hdr_shallow_clone, + (pjsip_hdr_print_fptr) &pjsip_sub_state_hdr_print, +}; + + +PJ_DEF(pjsip_sub_state_hdr*) pjsip_sub_state_hdr_create(pj_pool_t *pool) +{ + pj_str_t sub_state = { "Subscription-State", 18 }; + pjsip_sub_state_hdr *hdr = PJ_POOL_ZALLOC_T(pool, pjsip_sub_state_hdr); + hdr->type = PJSIP_H_OTHER; + hdr->name = hdr->sname = sub_state; + hdr->vptr = &sub_state_hdr_vptr; + hdr->expires_param = -1; + hdr->retry_after = -1; + pj_list_init(hdr); + pj_list_init(&hdr->other_param); + return hdr; +} + +static int pjsip_sub_state_hdr_print(pjsip_sub_state_hdr *hdr, + char *buf, pj_size_t size) +{ + char *p = buf; + char *endbuf = buf+size; + int printed; + const pjsip_parser_const_t *pc = pjsip_parser_const(); + + copy_advance(p, hdr->name); + *p++ = ':'; + *p++ = ' '; + + copy_advance_escape(p, hdr->sub_state, pc->pjsip_TOKEN_SPEC); + copy_advance_pair_escape(p, ";reason=", 8, hdr->reason_param, + pc->pjsip_TOKEN_SPEC); + if (hdr->expires_param >= 0) { + pj_memcpy(p, ";expires=", 9); + p += 9; + printed = pj_utoa(hdr->expires_param, p); + p += printed; + } + if (hdr->retry_after >= 0) { + pj_memcpy(p, ";retry-after=", 13); + p += 9; + printed = pj_utoa(hdr->retry_after, p); + p += printed; + } + + printed = pjsip_param_print_on( &hdr->other_param, p, endbuf-p, + &pc->pjsip_TOKEN_SPEC, + &pc->pjsip_TOKEN_SPEC, + ';'); + if (printed < 0) + return printed; + + p += printed; + + return p - buf; +} + +static pjsip_sub_state_hdr* +pjsip_sub_state_hdr_clone(pj_pool_t *pool, + const pjsip_sub_state_hdr *rhs) +{ + pjsip_sub_state_hdr *hdr = pjsip_sub_state_hdr_create(pool); + pj_strdup(pool, &hdr->sub_state, &rhs->sub_state); + pj_strdup(pool, &hdr->reason_param, &rhs->reason_param); + hdr->retry_after = rhs->retry_after; + hdr->expires_param = rhs->expires_param; + pjsip_param_clone(pool, &hdr->other_param, &rhs->other_param); + return hdr; +} + +static pjsip_sub_state_hdr* +pjsip_sub_state_hdr_shallow_clone(pj_pool_t *pool, + const pjsip_sub_state_hdr *rhs) +{ + pjsip_sub_state_hdr *hdr = PJ_POOL_ALLOC_T(pool, pjsip_sub_state_hdr); + pj_memcpy(hdr, rhs, sizeof(*hdr)); + pjsip_param_shallow_clone(pool, &hdr->other_param, &rhs->other_param); + return hdr; +} + + +/* + * Parse Event header. + */ +static pjsip_hdr *parse_hdr_event(pjsip_parse_ctx *ctx) +{ + pjsip_event_hdr *hdr = pjsip_event_hdr_create(ctx->pool); + const pj_str_t id_param = { "id", 2 }; + const pjsip_parser_const_t *pc = pjsip_parser_const(); + + pj_scan_get(ctx->scanner, &pc->pjsip_TOKEN_SPEC, &hdr->event_type); + + while (*ctx->scanner->curptr == ';') { + pj_str_t pname, pvalue; + + pj_scan_get_char(ctx->scanner); + pjsip_parse_param_imp(ctx->scanner, ctx->pool, &pname, &pvalue, 0); + + if (pj_stricmp(&pname, &id_param)==0) { + hdr->id_param = pvalue; + } else { + pjsip_param *param = PJ_POOL_ALLOC_T(ctx->pool, pjsip_param); + param->name = pname; + param->value = pvalue; + pj_list_push_back(&hdr->other_param, param); + } + } + pjsip_parse_end_hdr_imp( ctx->scanner ); + return (pjsip_hdr*)hdr; +} + +/* + * Parse Subscription-State header. + */ +static pjsip_hdr* parse_hdr_sub_state( pjsip_parse_ctx *ctx ) +{ + pjsip_sub_state_hdr *hdr = pjsip_sub_state_hdr_create(ctx->pool); + const pj_str_t reason = { "reason", 6 }, + expires = { "expires", 7 }, + retry_after = { "retry-after", 11 }; + const pjsip_parser_const_t *pc = pjsip_parser_const(); + + pj_scan_get(ctx->scanner, &pc->pjsip_TOKEN_SPEC, &hdr->sub_state); + + while (*ctx->scanner->curptr == ';') { + pj_str_t pname, pvalue; + + pj_scan_get_char(ctx->scanner); + pjsip_parse_param_imp(ctx->scanner, ctx->pool, &pname, &pvalue, 0); + + if (pj_stricmp(&pname, &reason) == 0) { + hdr->reason_param = pvalue; + + } else if (pj_stricmp(&pname, &expires) == 0) { + hdr->expires_param = pj_strtoul(&pvalue); + + } else if (pj_stricmp(&pname, &retry_after) == 0) { + hdr->retry_after = pj_strtoul(&pvalue); + + } else { + pjsip_param *param = PJ_POOL_ALLOC_T(ctx->pool, pjsip_param); + param->name = pname; + param->value = pvalue; + pj_list_push_back(&hdr->other_param, param); + } + } + + pjsip_parse_end_hdr_imp( ctx->scanner ); + return (pjsip_hdr*)hdr; +} + +/* + * Register header parsers. + */ +PJ_DEF(void) pjsip_evsub_init_parser(void) +{ + pjsip_register_hdr_parser( "Event", "o", + &parse_hdr_event); + + pjsip_register_hdr_parser( "Subscription-State", NULL, + &parse_hdr_sub_state); +} + |