void
RequestHandler::handleRequest(TCPSocket* sock)
{
char mtd[16];
char uri[512];
char bfr[c_max_request_size] = {0};
// Search for end of request.
unsigned idx = 0;
unsigned didx = 0;
bool eor = false;
while (!eor && (idx < (c_max_request_size - 1)))
{
int rv = sock->read(bfr + idx, 1);
if (rv <= 0)
throw ConnectionClosed();
if (didx == 0 && bfr[idx] == '\r')
didx = 1;
else if (didx == 1 && bfr[idx] == '\n')
didx = 2;
else if (didx == 2 && bfr[idx] == '\r')
didx = 3;
else if (didx == 3 && bfr[idx] == '\n')
{
eor = true;
didx = 0;
}
else
didx = 0;
++idx;
}
// Get header.
int size = idx - 4;
if (size <= 0)
{
DUNE_WRN("HTTP", "request too short");
return;
}
char* hdr = new char[size + 1];
std::memcpy(hdr, bfr, size);
hdr[size] = 0;
Utils::TupleList headers(hdr, ":", "\r\n", true);
// Parse request line.
if (std::sscanf(hdr, "%s %s %*s", mtd, uri) == 2)
{
std::string uri_dec = URL::decode(uri);
const char* uri_clean = uri_dec.c_str();
if (std::strcmp(mtd, "GET") == 0)
{
handleGET(sock, headers, uri_clean);
}
else if (std::strcmp(mtd, "POST") == 0)
{
handlePOST(sock, headers, uri_clean);
}
else if (std::strcmp(mtd, "PUT") == 0)
{
handlePUT(sock, headers, uri_clean);
}
}
delete[] hdr;
}
/*
* Command mode network thread routine
*/
int doCmdClient(session_node_t * sn)
{
/*TODO: Optimize memory usage; these buffers occupy 6 kB stack
* memory.
*/
char line[MAXSRCPLINELEN];
char reply[MAXSRCPLINELEN];
char cbus[MAXSRCPLINELEN];
char command[MAXSRCPLINELEN];
char devicegroup[MAXSRCPLINELEN];
char parameter[MAXSRCPLINELEN];
bus_t bus;
long int rc, nelem;
struct timeval akt_time;
ssize_t result;
syslog_session(sn->session, DBG_INFO, "Command mode starting.");
while (true) {
pthread_testcancel();
memset(line, 0, sizeof(line));
result = socket_readline(sn->socket, line, sizeof(line) - 1);
/* client terminated connection */
if (0 == result) {
shutdown(sn->socket, SHUT_RDWR);
break;
}
/* read errror */
if (-1 == result) {
syslog_session(sn->session, DBG_ERROR,
"Socket read failed: %s (errno = %d)\n",
strerror(errno), errno);
break;
}
/*remove terminating line break */
size_t linelen = strlen(line);
if (linelen > 1 && (line[linelen - 1] == '\n'))
line[linelen - 1] = '\0';
memset(command, 0, sizeof(command));
memset(cbus, 0, sizeof(cbus));
memset(devicegroup, 0, sizeof(devicegroup));
memset(parameter, 0, sizeof(parameter));
memset(reply, 0, sizeof(reply));
nelem = sscanf(line, "%s %s %s %1000c", command, cbus,
devicegroup, parameter);
bus = atoi(cbus);
reply[0] = 0x00;
if (nelem >= 3) {
if (bus <= num_buses) {
rc = SRCP_UNKNOWNCOMMAND;
if (strncasecmp(command, "SET", 3) == 0) {
rc = handleSET(sn->session, bus, devicegroup,
parameter, reply);
}
else if (strncasecmp(command, "GET", 3) == 0) {
rc = handleGET(sn->session, bus, devicegroup,
parameter, reply, sizeof(reply));
}
else if (strncasecmp(command, "WAIT", 4) == 0) {
rc = handleWAIT(sn->session, bus, devicegroup,
parameter, reply, sizeof(reply));
}
else if (strncasecmp(command, "INIT", 4) == 0) {
rc = handleINIT(sn->session, bus, devicegroup,
parameter, reply);
}
else if (strncasecmp(command, "TERM", 4) == 0) {
rc = handleTERM(sn->session, bus, devicegroup,
parameter, reply);
/*special option for session termination (?) */
if (rc < 0) {
if (writen(sn->socket, reply, strlen(reply)) == -1) {
syslog_session(sn->session, DBG_ERROR,
"Socket write failed: %s (errno = %d)\n",
strerror(errno), errno);
break;
}
break;
}
rc = abs(rc);
}
else if (strncasecmp(command, "VERIFY", 6) == 0) {
rc = handleVERIFY(sn->session, bus, devicegroup,
parameter, reply);
}
else if (strncasecmp(command, "RESET", 5) == 0) {
rc = handleRESET(sn->session, bus, devicegroup,
parameter, reply);
}
}
/* bus > num_buses */
else {
rc = SRCP_WRONGVALUE;
gettimeofday(&akt_time, NULL);
srcp_fmt_msg(rc, reply, akt_time);
}
}
/* nelem < 3 */
else {
syslog_session(sn->session, DBG_DEBUG, "List too short: %d",
nelem);
rc = SRCP_LISTTOOSHORT;
gettimeofday(&akt_time, NULL);
srcp_fmt_msg(rc, reply, akt_time);
}
if (writen(sn->socket, reply, strlen(reply)) == -1) {
syslog_session(sn->session, DBG_ERROR,
"Socket write failed: %s (errno = %d)\n",
strerror(errno), errno);
break;
}
}
return 0;
}
