/************************************************************************
* NAME: fnet_http_ssi_send
*
* DESCRIPTION:
************************************************************************/
static fnet_size_t fnet_http_ssi_send (struct fnet_http_if * http)
{
fnet_size_t result = 0u;
fnet_size_t read_result = 0u;
fnet_index_t ssi_head_index = 0u;
fnet_index_t ssi_tail_index = 0u;
struct fnet_http_session_if *session = http->session_active;
fnet_uint8_t *buffer = session->buffer;
fnet_bool_t next = FNET_FALSE;
while ((result < sizeof(session->buffer)) && (next == FNET_FALSE))
{
if((http->ssi.state != FNET_HTTP_SSI_INCLUDING) /* Read from file if not in including. */
&&((read_result = fnet_fs_fread(buffer, 1u, session->send_param.file_desc)) == 0u) )
{
break; /*EOF*/
}
switch (http->ssi.state)
{
case FNET_HTTP_SSI_WAIT_HEAD:
if(*buffer == fnet_http_ssi_head[ssi_head_index])
{
ssi_head_index++;
if(ssi_head_index == sizeof(fnet_http_ssi_head))
{ /* Head is found */
if(result >= sizeof(fnet_http_ssi_head))
{ /* Found in the middle */
fnet_fs_fseek (session->send_param.file_desc, -((fnet_int32_t)sizeof(fnet_http_ssi_head)), FNET_FS_SEEK_CUR);
next = FNET_TRUE; /* break */
result -= sizeof(fnet_http_ssi_head); /* Correct result */
}
else
{
http->ssi.state = FNET_HTTP_SSI_WAIT_TAIL;
}
}
}
else
{
ssi_head_index = 0u;
}
break;
case FNET_HTTP_SSI_WAIT_TAIL:
if(*buffer == fnet_http_ssi_tail[ssi_tail_index])
{
ssi_tail_index++;
if(ssi_tail_index == sizeof(fnet_http_ssi_tail))
{ /* Tail is found */
const struct fnet_http_ssi *ssi_ptr = 0;
fnet_char_t *ssi_name = (fnet_char_t*)&session->buffer[sizeof(fnet_http_ssi_head)];
fnet_char_t *ssi_param;
http->ssi.send = 0;
session->buffer[buffer + 1 - session->buffer - sizeof(fnet_http_ssi_tail)] = '\0'; /* Mark end of the SSI. */
/* Find SSI parameters. */
if((ssi_param = fnet_strchr( (fnet_char_t*)session->buffer, ' ' )) !=0)
{
*ssi_param = '\0'; /* Mark end of the SSI name. */
ssi_param ++; /* Point to the begining of params. */
}
if(http->ssi.ssi_table)
/* SSI table is initialized.*/
{
/* Find SSI handler */
for(ssi_ptr = http->ssi.ssi_table; (ssi_ptr->name) && (ssi_ptr->send); ssi_ptr++)
{
if (!fnet_strcmp( ssi_name,
ssi_ptr->name))
{
http->ssi.send = ssi_ptr->send;
break;
}
}
}
read_result = 0u; /* Eliminate the include. */
if(http->ssi.send)
{ /* SSI Handler is found. */
if((ssi_ptr->handle == 0) || (ssi_ptr->handle(ssi_param, &session->response.cookie) == FNET_OK))
{
buffer = session->buffer; /* Reset */
result = 0u;
http->ssi.state = FNET_HTTP_SSI_INCLUDING;
}
else
{
http->ssi.state = FNET_HTTP_SSI_WAIT_HEAD;
}
}
else
{
http->ssi.state = FNET_HTTP_SSI_WAIT_HEAD;
}
}
}
else
{
ssi_tail_index = 0u;
}
break;
case FNET_HTTP_SSI_INCLUDING:
{
fnet_bool_t eof;
read_result = http->ssi.send(session->buffer, sizeof(session->buffer), &eof, &session->response.cookie);
if((read_result == 0u) || (eof == FNET_TRUE))
{
http->ssi.state = FNET_HTTP_SSI_WAIT_HEAD;
}
next = FNET_TRUE; /* break */
}
break;
default:
break;
}
buffer+=read_result;
result+=read_result;
}
if(read_result && (next == FNET_FALSE) && ssi_head_index && (http->ssi.state == FNET_HTTP_SSI_WAIT_HEAD) )
{ /* Potential SSI is splitted => parse in the next itteration */
result-=ssi_head_index; /* adjust result */
fnet_fs_fseek(session->send_param.file_desc, -(fnet_int32_t)ssi_head_index, FNET_FS_SEEK_CUR);
}
return result;
}
/************************************************************************
* NAME: fnet_http_ssi_send
*
* DESCRIPTION:
************************************************************************/
static unsigned long fnet_http_ssi_send (struct fnet_http_if * http)
{
unsigned long result = 0;
unsigned long read_result = 0;
int ssi_head_index = 0;
int ssi_tail_index = 0;
char * buffer = http->buffer;
int next = 0;
while (result<sizeof(http->buffer) && (next == 0))
{
if(http->ssi.state != FNET_HTTP_SSI_INCLUDING) /* Read from file if not in including. */
if((read_result = fnet_fs_fread(buffer, 1, http->send_param.file_desc)) == 0)
break; /*EOF*/
switch (http->ssi.state)
{
case FNET_HTTP_SSI_WAIT_HEAD:
if(*buffer == fnet_http_ssi_head[ssi_head_index])
{
ssi_head_index++;
if(ssi_head_index == sizeof(fnet_http_ssi_head))
{ /* Head is found */
if(result >= sizeof(fnet_http_ssi_head))
{ /* Found in the middle */
fnet_fs_fseek (http->send_param.file_desc, -sizeof(fnet_http_ssi_head), FNET_FS_SEEK_CUR);
next = 1; /* break */
result -= sizeof(fnet_http_ssi_head); /* Correct result */
}
else
http->ssi.state = FNET_HTTP_SSI_WAIT_TAIL;
}
}
else
ssi_head_index = 0;
break;
case FNET_HTTP_SSI_WAIT_TAIL:
if(*buffer == fnet_http_ssi_tail[ssi_tail_index])
{
ssi_tail_index++;
if(ssi_tail_index == sizeof(fnet_http_ssi_tail))
{ /* Tail is found */
const struct fnet_http_ssi *ssi_ptr = 0;
char * ssi_name = &http->buffer[sizeof(fnet_http_ssi_head)];
char * ssi_param;
http->ssi.send = 0;
http->buffer[buffer + 1 - http->buffer - sizeof(fnet_http_ssi_tail)] = '\0'; /* Mark end of the SSI. */
/* Find SSI parameters. */
if((ssi_param = fnet_strchr( http->buffer, ' ' )) !=0)
{
*ssi_param = '\0'; /* Mark end of the SSI name. */
ssi_param ++; /* Point to the begining of params. */
}
if(http->ssi.ssi_table)
/* SSI table is initialized.*/
{
/* Find SSI handler */
for(ssi_ptr = http->ssi.ssi_table; ssi_ptr->name && ssi_ptr->send; ssi_ptr++)
{
if (!fnet_strcmp( ssi_name,
ssi_ptr->name))
{
http->ssi.send = ssi_ptr->send;
break;
}
}
}
read_result = 0; /* Eliminate the include. */
if(http->ssi.send)
{ /* SSI Handler is found. */
if((ssi_ptr->handle == 0) || (ssi_ptr->handle(ssi_param, &http->response.cookie) == FNET_OK))
{
buffer = http->buffer; /* Reset */
result = 0;
http->ssi.state = FNET_HTTP_SSI_INCLUDING;
}
else
http->ssi.state = FNET_HTTP_SSI_WAIT_HEAD;
}
else
http->ssi.state = FNET_HTTP_SSI_WAIT_HEAD;
}
}
else
ssi_tail_index = 0;
break;
case FNET_HTTP_SSI_INCLUDING:
{
char eof;
read_result = (unsigned long) http->ssi.send(http->buffer, sizeof(http->buffer), &eof, &http->response.cookie);
if((read_result == 0) || (eof == 1))
http->ssi.state = FNET_HTTP_SSI_WAIT_HEAD;
next = 1; /* break */
}
break;
}
buffer+=read_result;
result+=read_result;
}
if(read_result && (next == 0) && ssi_head_index && (http->ssi.state == FNET_HTTP_SSI_WAIT_HEAD) )
{ /* Potential SSI is splitted => parse in the next itteration */
result-=ssi_head_index; /* adjust result */
fnet_fs_fseek (http->send_param.file_desc, -ssi_head_index, FNET_FS_SEEK_CUR);
}
return result;
}
