Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id: iscomposing.c 3553 2011-05-05 06:14:19Z nanang $ */ |
| 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/iscomposing.h> |
| 21 | #include <pjsip-simple/errno.h> |
| 22 | #include <pjsip/sip_msg.h> |
| 23 | #include <pjlib-util/errno.h> |
| 24 | #include <pj/pool.h> |
| 25 | #include <pj/string.h> |
| 26 | |
| 27 | |
| 28 | /* MIME */ |
| 29 | static const pj_str_t STR_MIME_TYPE = { "application", 11 }; |
| 30 | static const pj_str_t STR_MIME_SUBTYPE = { "im-iscomposing+xml", 18 }; |
| 31 | |
| 32 | |
| 33 | /* XML node constants. */ |
| 34 | static const pj_str_t STR_ISCOMPOSING = { "isComposing", 11 }; |
| 35 | static const pj_str_t STR_STATE = { "state", 5 }; |
| 36 | static const pj_str_t STR_ACTIVE = { "active", 6 }; |
| 37 | static const pj_str_t STR_IDLE = { "idle", 4 }; |
| 38 | static const pj_str_t STR_LASTACTIVE = { "lastactive", 10 }; |
| 39 | static const pj_str_t STR_CONTENTTYPE = { "contenttype", 11 }; |
| 40 | static const pj_str_t STR_REFRESH = { "refresh", 7 }; |
| 41 | |
| 42 | |
| 43 | /* XML attributes constants */ |
| 44 | static const pj_str_t STR_XMLNS_NAME = { "xmlns", 5 }; |
| 45 | static const pj_str_t STR_XMLNS_VAL = { "urn:ietf:params:xml:ns:im-iscomposing", 37 }; |
| 46 | static const pj_str_t STR_XMLNS_XSI_NAME = { "xmlns:xsi", 9 }; |
| 47 | static const pj_str_t STR_XMLNS_XSI_VAL = { "http://www.w3.org/2001/XMLSchema-instance", 41 }; |
| 48 | static const pj_str_t STR_XSI_SLOC_NAME = { "xsi:schemaLocation", 18 }; |
| 49 | static const pj_str_t STR_XSI_SLOC_VAL = { "urn:ietf:params:xml:ns:im-composing iscomposing.xsd", 51 }; |
| 50 | |
| 51 | |
| 52 | PJ_DEF(pj_xml_node*) pjsip_iscomposing_create_xml( pj_pool_t *pool, |
| 53 | pj_bool_t is_composing, |
| 54 | const pj_time_val *lst_actv, |
| 55 | const pj_str_t *content_tp, |
| 56 | int refresh) |
| 57 | { |
| 58 | pj_xml_node *doc, *node; |
| 59 | pj_xml_attr *attr; |
| 60 | |
| 61 | /* Root document. */ |
| 62 | doc = pj_xml_node_new(pool, &STR_ISCOMPOSING); |
| 63 | |
| 64 | /* Add attributes */ |
| 65 | attr = pj_xml_attr_new(pool, &STR_XMLNS_NAME, &STR_XMLNS_VAL); |
| 66 | pj_xml_add_attr(doc, attr); |
| 67 | |
| 68 | attr = pj_xml_attr_new(pool, &STR_XMLNS_XSI_NAME, &STR_XMLNS_XSI_VAL); |
| 69 | pj_xml_add_attr(doc, attr); |
| 70 | |
| 71 | attr = pj_xml_attr_new(pool, &STR_XSI_SLOC_NAME, &STR_XSI_SLOC_VAL); |
| 72 | pj_xml_add_attr(doc, attr); |
| 73 | |
| 74 | |
| 75 | /* Add state. */ |
| 76 | node = pj_xml_node_new(pool, &STR_STATE); |
| 77 | if (is_composing) |
| 78 | node->content = STR_ACTIVE; |
| 79 | else |
| 80 | node->content = STR_IDLE; |
| 81 | pj_xml_add_node(doc, node); |
| 82 | |
| 83 | /* Add lastactive, if any. */ |
| 84 | PJ_UNUSED_ARG(lst_actv); |
| 85 | //if (!is_composing && lst_actv) { |
| 86 | // PJ_TODO(IMPLEMENT_LAST_ACTIVE_ATTRIBUTE); |
| 87 | //} |
| 88 | |
| 89 | /* Add contenttype, if any. */ |
| 90 | if (content_tp) { |
| 91 | node = pj_xml_node_new(pool, &STR_CONTENTTYPE); |
| 92 | pj_strdup(pool, &node->content, content_tp); |
| 93 | pj_xml_add_node(doc, node); |
| 94 | } |
| 95 | |
| 96 | /* Add refresh, if any. */ |
| 97 | if (is_composing && refresh > 1 && refresh < 3601) { |
| 98 | node = pj_xml_node_new(pool, &STR_REFRESH); |
| 99 | node->content.ptr = (char*) pj_pool_alloc(pool, 10); |
| 100 | node->content.slen = pj_utoa(refresh, node->content.ptr); |
| 101 | pj_xml_add_node(doc, node); |
| 102 | } |
| 103 | |
| 104 | /* Done! */ |
| 105 | |
| 106 | return doc; |
| 107 | } |
| 108 | |
| 109 | |
| 110 | |
| 111 | /* |
| 112 | * Function to print XML message body. |
| 113 | */ |
| 114 | static int xml_print_body( struct pjsip_msg_body *msg_body, |
| 115 | char *buf, pj_size_t size) |
| 116 | { |
| 117 | return pj_xml_print((const pj_xml_node*)msg_body->data, buf, size, |
| 118 | PJ_TRUE); |
| 119 | } |
| 120 | |
| 121 | |
| 122 | /* |
| 123 | * Function to clone XML document. |
| 124 | */ |
| 125 | static void* xml_clone_data(pj_pool_t *pool, const void *data, unsigned len) |
| 126 | { |
| 127 | PJ_UNUSED_ARG(len); |
| 128 | return pj_xml_clone( pool, (const pj_xml_node*)data); |
| 129 | } |
| 130 | |
| 131 | |
| 132 | |
| 133 | PJ_DEF(pjsip_msg_body*) pjsip_iscomposing_create_body( pj_pool_t *pool, |
| 134 | pj_bool_t is_composing, |
| 135 | const pj_time_val *lst_actv, |
| 136 | const pj_str_t *content_tp, |
| 137 | int refresh) |
| 138 | { |
| 139 | pj_xml_node *doc; |
| 140 | pjsip_msg_body *body; |
| 141 | |
| 142 | doc = pjsip_iscomposing_create_xml( pool, is_composing, lst_actv, |
| 143 | content_tp, refresh); |
| 144 | if (doc == NULL) |
| 145 | return NULL; |
| 146 | |
| 147 | |
| 148 | body = PJ_POOL_ZALLOC_T(pool, pjsip_msg_body); |
| 149 | body->content_type.type = STR_MIME_TYPE; |
| 150 | body->content_type.subtype = STR_MIME_SUBTYPE; |
| 151 | |
| 152 | body->data = doc; |
| 153 | body->len = 0; |
| 154 | |
| 155 | body->print_body = &xml_print_body; |
| 156 | body->clone_data = &xml_clone_data; |
| 157 | |
| 158 | return body; |
| 159 | } |
| 160 | |
| 161 | |
| 162 | PJ_DEF(pj_status_t) pjsip_iscomposing_parse( pj_pool_t *pool, |
| 163 | char *msg, |
| 164 | pj_size_t len, |
| 165 | pj_bool_t *p_is_composing, |
| 166 | pj_str_t **p_last_active, |
| 167 | pj_str_t **p_content_type, |
| 168 | int *p_refresh ) |
| 169 | { |
| 170 | pj_xml_node *doc, *node; |
| 171 | |
| 172 | /* Set defaults: */ |
| 173 | if (p_is_composing) *p_is_composing = PJ_FALSE; |
| 174 | if (p_last_active) *p_last_active = NULL; |
| 175 | if (p_content_type) *p_content_type = NULL; |
| 176 | |
| 177 | /* Parse XML */ |
| 178 | doc = pj_xml_parse( pool, msg, len); |
| 179 | if (!doc) |
| 180 | return PJLIB_UTIL_EINXML; |
| 181 | |
| 182 | /* Root document must be "isComposing" */ |
| 183 | if (pj_stricmp(&doc->name, &STR_ISCOMPOSING) != 0) |
| 184 | return PJSIP_SIMPLE_EBADISCOMPOSE; |
| 185 | |
| 186 | /* Get the status. */ |
| 187 | if (p_is_composing) { |
| 188 | node = pj_xml_find_node(doc, &STR_STATE); |
| 189 | if (node == NULL) |
| 190 | return PJSIP_SIMPLE_EBADISCOMPOSE; |
| 191 | *p_is_composing = (pj_stricmp(&node->content, &STR_ACTIVE)==0); |
| 192 | } |
| 193 | |
| 194 | /* Get last active. */ |
| 195 | if (p_last_active) { |
| 196 | node = pj_xml_find_node(doc, &STR_LASTACTIVE); |
| 197 | if (node) |
| 198 | *p_last_active = &node->content; |
| 199 | } |
| 200 | |
| 201 | /* Get content type */ |
| 202 | if (p_content_type) { |
| 203 | node = pj_xml_find_node(doc, &STR_CONTENTTYPE); |
| 204 | if (node) |
| 205 | *p_content_type = &node->content; |
| 206 | } |
| 207 | |
| 208 | /* Get refresh */ |
| 209 | if (p_refresh) { |
| 210 | node = pj_xml_find_node(doc, &STR_REFRESH); |
| 211 | if (node) |
| 212 | *p_refresh = pj_strtoul(&node->content); |
| 213 | } |
| 214 | |
| 215 | return PJ_SUCCESS; |
| 216 | } |
| 217 | |
| 218 | |