int handle_incoming_message(int skt, struct sockaddr_in *sin, struct s_client2server_msg_record *rec)
/*
Purpose:Process message which has just arrived from client.
A 'message' could be a login/logout request or a ping.
Params: skt - client's port to respond to
sin - client's IP address, in sockaddr_in structure
rec - data received from client
Return: result (0=success, nonzero=failure)
*/
{
char clientIP[MAX_STR_LEN+1];
unsigned char *ptr;
int res=0;
// echo_ipaddr_to_screen(&sin->sin_addr);
ptr = (unsigned char*)(&sin->sin_addr);
sprintf(clientIP, "%d.%d.%d.%d", ptr[0], ptr[1], ptr[2], ptr[3]);
log_it(debug, "clientIP = %s", clientIP);
log_it(debug, "%s message from %s [%s] (port %d)", tmsg_to_string(rec->msg_type), clientIP, rec->body, rec->port);
switch(rec->msg_type)
{
case login:
res=handle_login_request(skt, rec, clientIP);
break;
case ping:
res=handle_ping_request(skt, rec, clientIP);
break;
case progress_rpt:
res=handle_progress_rpt(skt, rec, clientIP);
break;
case logout:
res=handle_logout_request(skt, rec, clientIP);
break;
case user_req:
res=handle_user_request(skt, rec, clientIP);
break;
default:
log_it(error, "...How do I handle it?");
}
return(res);
}
// Request dispatcher
static void handle_request(struct evhttp_request *request,
void *userdata) {
evhttp_connection_set_timeout(request->evcon, 1);
evhttp_add_header(evhttp_request_get_output_headers(request),
"Server", "[email protected]/spotify-api-server");
// Check request method
int http_method = evhttp_request_get_command(request);
switch (http_method) {
case EVHTTP_REQ_GET:
case EVHTTP_REQ_PUT:
case EVHTTP_REQ_POST:
break;
default:
evhttp_send_error(request, HTTP_NOTIMPL, "Not Implemented");
return;
}
struct state *state = userdata;
sp_session *session = state->session;
char *uri = evhttp_decode_uri(evhttp_request_get_uri(request));
char *entity = strtok(uri, "/");
if (entity == NULL) {
evhttp_send_error(request, HTTP_BADREQUEST, "Bad Request");
free(uri);
return;
}
// Handle requests to /user/<user_name>/inbox
if (strncmp(entity, "user", 4) == 0) {
char *username = strtok(NULL, "/");
if (username == NULL) {
evhttp_send_error(request, HTTP_BADREQUEST, "Bad Request");
free(uri);
return;
}
char *action = strtok(NULL, "/");
handle_user_request(request, action, username, session);
free(uri);
return;
}
// Handle requests to /playlist/<playlist_uri>/<action>
if (strncmp(entity, "playlist", 8) != 0) {
evhttp_send_error(request, HTTP_BADREQUEST, "Bad Request");
free(uri);
return;
}
char *playlist_uri = strtok(NULL, "/");
if (playlist_uri == NULL) {
switch (http_method) {
case EVHTTP_REQ_PUT:
case EVHTTP_REQ_POST:
put_playlist(NULL, request, session);
break;
default:
send_error(request, HTTP_BADREQUEST, "Bad Request");
break;
}
free(uri);
return;
}
sp_link *playlist_link = sp_link_create_from_string(playlist_uri);
if (playlist_link == NULL) {
send_error(request, HTTP_NOTFOUND, "Playlist link not found");
free(uri);
return;
}
if (sp_link_type(playlist_link) != SP_LINKTYPE_PLAYLIST) {
sp_link_release(playlist_link);
send_error(request, HTTP_BADREQUEST, "Not a playlist link");
free(uri);
return;
}
sp_playlist *playlist = sp_playlist_create(session, playlist_link);
sp_link_release(playlist_link);
if (playlist == NULL) {
send_error(request, HTTP_NOTFOUND, "Playlist not found");
free(uri);
return;
}
sp_playlist_add_ref(playlist);
// Dispatch request
char *action = strtok(NULL, "/");
// Default request handler
handle_playlist_fn request_callback = ¬_implemented;
void *callback_userdata = session;
switch (http_method) {
case EVHTTP_REQ_GET:
{
if (action == NULL) {
// Send entire playlist
request_callback = &get_playlist;
} else if (strncmp(action, "collaborative", 13) == 0) {
request_callback = &get_playlist_collaborative;
} else if (strncmp(action, "subscribers", 11) == 0) {
request_callback = &get_playlist_subscribers;
}
}
break;
case EVHTTP_REQ_PUT:
case EVHTTP_REQ_POST:
{
if (strncmp(action, "add", 3) == 0) {
request_callback = &put_playlist_add_tracks;
} else if (strncmp(action, "remove", 6) == 0) {
request_callback = &put_playlist_remove_tracks;
} else if (strncmp(action, "patch", 5) == 0) {
callback_userdata = state;
request_callback = &put_playlist_patch;
}
}
break;
}
if (sp_playlist_is_loaded(playlist)) {
request_callback(playlist, request, callback_userdata);
} else {
// Wait for playlist to load
register_playlist_callbacks(playlist, request, request_callback,
&playlist_state_changed_callbacks,
callback_userdata);
}
free(uri);
}
