pjsip_multipart_find_part( const pjsip_msg_body *mp,
const pjsip_media_type *content_type,
const pjsip_multipart_part *start)
{
struct multipart_data *m_data;
pjsip_multipart_part *part;
/* Must specify mandatory params */
PJ_ASSERT_RETURN(mp && content_type, NULL);
/* mp must really point to an actual multipart msg body */
PJ_ASSERT_RETURN(mp->print_body==&multipart_print_body, NULL);
m_data = (struct multipart_data*)mp->data;
if (start)
part = start->next;
else
part = m_data->part_head.next;
while (part != &m_data->part_head) {
if (pjsip_media_type_cmp(&part->body->content_type,
content_type, 0)==0)
{
return part;
}
part = part->next;
}
return NULL;
}
static int verify_part(pjsip_multipart_part *part,
char *h_content_type,
char *h_content_subtype,
char *boundary,
int h_content_length,
const char *body)
{
pjsip_ctype_hdr *ctype_hdr = NULL;
pjsip_clen_hdr *clen_hdr = NULL;
pjsip_hdr *hdr;
pj_str_t the_body;
hdr = part->hdr.next;
while (hdr != &part->hdr) {
if (hdr->type == PJSIP_H_CONTENT_TYPE)
ctype_hdr = (pjsip_ctype_hdr*)hdr;
else if (hdr->type == PJSIP_H_CONTENT_LENGTH)
clen_hdr = (pjsip_clen_hdr*)hdr;
hdr = hdr->next;
}
if (h_content_type) {
pjsip_media_type mt;
if (ctype_hdr == NULL)
return -10;
init_media_type(&mt, h_content_type, h_content_subtype, boundary);
if (pjsip_media_type_cmp(&ctype_hdr->media, &mt, 2) != 0)
return -20;
} else {
if (ctype_hdr)
return -30;
}
if (h_content_length >= 0) {
if (clen_hdr == NULL)
return -50;
if (clen_hdr->len != h_content_length)
return -60;
} else {
if (clen_hdr)
return -70;
}
the_body.ptr = (char*)part->body->data;
the_body.slen = part->body->len;
if (pj_strcmp2(&the_body, body) != 0)
return -90;
return 0;
}
static pj_status_t verify1(pj_pool_t *pool, pjsip_msg_body *body)
{
pjsip_media_type mt;
pjsip_multipart_part *part;
int rc;
PJ_UNUSED_ARG(pool);
/* Check content-type: "multipart/mixed;boundary=12345" */
init_media_type(&mt, "multipart", "mixed", "12345");
if (pjsip_media_type_cmp(&body->content_type, &mt, 2) != 0)
return -200;
/* First part:
"Content-Type: my/text\r\n"
"\r\n"
"Header and body\r\n"
*/
part = pjsip_multipart_get_first_part(body);
if (!part)
return -210;
if (verify_part(part, "my", "text", NULL, -1, "Header and body"))
return -220;
/* Next part:
"Content-Type: hello/world\r\n"
"Content-Length: 0\r\n"
"\r\n"
*/
part = pjsip_multipart_get_next_part(body, part);
if (!part)
return -230;
if ((rc=verify_part(part, "hello", "world", NULL, 0, ""))!=0) {
PJ_LOG(3,(THIS_FILE, " err: verify_part rc=%d", rc));
return -240;
}
/* Next part:
"\r\n"
"Body only\r\n"
*/
part = pjsip_multipart_get_next_part(body, part);
if (!part)
return -260;
if (verify_part(part, NULL, NULL, NULL, -1, "Body only"))
return -270;
/* Next part:
"Content-Type: multipart/mixed;boundary=6789\r\n"
"\r\n"
"Prolog of the subbody, should be ignored\r\n"
"--6789\r\n"
"\r\n"
"Subbody\r\n"
"--6789--\r\n"
"Epilogue of the subbody, should be ignored\r\n"
*/
part = pjsip_multipart_get_next_part(body, part);
if (!part)
return -280;
if ((rc=verify_part(part, "multipart", "mixed", "6789", -1,
"Prolog of the subbody, should be ignored\r\n"
"--6789\r\n"
"\r\n"
"Subbody\r\n"
"--6789--\r\n"
"Epilogue of the subbody, should be ignored"))!=0) {
PJ_LOG(3,(THIS_FILE, " err: verify_part rc=%d", rc));
return -290;
}
return 0;
}