| /* $Id$ */ |
| /* |
| * 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; |
| pj_ssize_t 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 (int)printed; |
| |
| p += printed; |
| return (int)(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; |
| pj_ssize_t 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 (int)printed; |
| |
| p += printed; |
| |
| return (int)(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); |
| } |
| |