| // update the demo.c file to use the existing folder structure and makefile |
| #include "websockets.h" // includes the "http.h" header |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include "bscrypt.h" |
| |
| /***************************** |
| The Websocket echo implementation |
| */ |
| |
| void ws_open(ws_s *ws) { |
| fprintf(stderr, "Opened a new websocket connection (%p)\n", ws); |
| } |
| |
| void ws_echo(ws_s *ws, char *data, size_t size, uint8_t is_text) { |
| // echos the data to the current websocket |
| websocket_write(ws, data, size, 1); |
| } |
| |
| void ws_shutdown(ws_s *ws) { websocket_write(ws, "Shutting Down", 13, 1); } |
| |
| void ws_close(ws_s *ws) { |
| fprintf(stderr, "Closed websocket connection (%p)\n", ws); |
| } |
| |
| /***************************** |
| The Websocket Broadcast implementation |
| */ |
| |
| /* websocket broadcast data */ |
| struct ws_data { |
| size_t size; |
| char data[]; |
| }; |
| /* free the websocket broadcast data */ |
| void free_wsdata(ws_s *ws, void *arg) { free(arg); } |
| /* the broadcast "task" performed by `Websocket.each` */ |
| void ws_get_broadcast(ws_s *ws, void *arg) { |
| struct ws_data *data = arg; |
| websocket_write(ws, data->data, data->size, 1); // echo |
| } |
| /* The websocket broadcast server's `on_message` callback */ |
| |
| void ws_broadcast(ws_s *ws, char *data, size_t size, uint8_t is_text) { |
| // Copy the message to a broadcast data-packet |
| struct ws_data *msg = malloc(sizeof(*msg) + size); |
| msg->size = size; |
| memcpy(msg->data, data, size); |
| // Asynchronously calls `ws_get_broadcast` for each of the websockets |
| // (except this one) |
| // and calls `free_wsdata` once all the broadcasts were perfomed. |
| websocket_each(ws, ws_get_broadcast, msg, free_wsdata); |
| // echos the data to the current websocket |
| websocket_write(ws, data, size, 1); |
| } |
| |
| /***************************** |
| The HTTP implementation |
| */ |
| |
| void on_request(http_request_s *request) { |
| // to log we will start a response. |
| http_response_s response = http_response_init(request); |
| // http_response_log_start(&response); |
| // upgrade requests to broadcast will have the following properties: |
| if (request->upgrade && !strcmp(request->path, "/broadcast")) { |
| // Websocket upgrade will use our existing response (never leak responses). |
| websocket_upgrade(.request = request, .on_message = ws_broadcast, |
| .on_open = ws_open, .on_close = ws_close, |
| .on_shutdown = ws_shutdown, .response = &response); |
| |
| return; |
| } |
| // other upgrade requests will have the following properties: |
| if (request->upgrade) { |
| websocket_upgrade(.request = request, .on_message = ws_echo, |
| .on_open = ws_open, .on_close = ws_close, .timeout = 4, |
| .on_shutdown = ws_shutdown, .response = &response); |
| return; |
| } |
| // file dumping |
| if (!strcmp(request->path, "/dump.jpg")) { |
| fdump_s *data = bscrypt_fdump("./public_www/bo.jpg", 0); |
| if (data == NULL) { |
| fprintf(stderr, "Couldn't read file\n"); |
| http_response_write_body(&response, "Sorry, error!", 13); |
| http_response_finish(&response); |
| } |
| http_response_write_body(&response, data->data, data->length); |
| http_response_finish(&response); |
| return; |
| } |
| if (!strcmp(request->path, "/dump.mov")) { |
| fdump_s *data = bscrypt_fdump("./public_www/rolex.mov", 0); |
| if (data == NULL) { |
| fprintf(stderr, "Couldn't read file\n"); |
| http_response_write_body(&response, "Sorry, error!", 13); |
| http_response_finish(&response); |
| } |
| http_response_write_body(&response, data->data, data->length); |
| http_response_finish(&response); |
| return; |
| } |
| // HTTP response |
| http_response_write_body(&response, "Hello World!", 12); |
| http_response_finish(&response); |
| } |
| |
| /***************************** |
| Print to screen protocol |
| */ |
| struct prnt2scrn_protocol_s { |
| protocol_s protocol; |
| intptr_t uuid; |
| }; |
| void on_data(intptr_t uuid, protocol_s *protocol) { |
| uint8_t buffer[1024]; |
| ssize_t len; |
| while ((len = sock_read(uuid, buffer, 1024)) > 0) { |
| if (len > 0) |
| fprintf(stderr, "%.*s\n", (int)len, buffer); |
| } |
| fprintf(stderr, "returning from on_data\n"); |
| // sock_write(uuid, "HTTP/1.1 100 Continue\r\n\r\n", 25); |
| } |
| void on_close(protocol_s *protocol) { |
| fprintf(stderr, "Connection closed %p\n", |
| (void *)(((struct prnt2scrn_protocol_s *)protocol)->uuid)); |
| free(protocol); |
| } |
| |
| protocol_s *on_open(intptr_t uuid, void *udata) { |
| struct prnt2scrn_protocol_s *prt = malloc(sizeof *prt); |
| *prt = (struct prnt2scrn_protocol_s){ |
| .protocol.on_data = on_data, .protocol.on_close = on_close, .uuid = uuid}; |
| fprintf(stderr, "New connection %p\n", (void *)uuid); |
| server_set_timeout(uuid, 10); |
| return (void *)prt; |
| } |
| |
| /***************************** |
| non-http-dump |
| */ |
| |
| void htpdmp_on_data(intptr_t uuid, protocol_s *protocol) { |
| uint8_t buffer[1024]; |
| ssize_t len; |
| while ((len = sock_read(uuid, buffer, 1024)) > 0) { |
| sock_write(uuid, "HTTP/1.1 200 " |
| "OK\r\nContent-Length:11\r\nConnection:keep-" |
| "alive\r\n\r\nHello Dump!", |
| 72); |
| } |
| // sock_write(uuid, "HTTP/1.1 100 Continue\r\n\r\n", 25); |
| } |
| |
| protocol_s *htpdmp_on_open(intptr_t uuid, void *udata) { |
| protocol_s *prt = malloc(sizeof *prt); |
| *prt = (protocol_s){.on_data = htpdmp_on_data, .on_close = (void *)free}; |
| server_set_timeout(uuid, 10); |
| return (void *)prt; |
| } |
| /***************************** |
| The main function |
| */ |
| #define THREAD_COUNT 8 |
| int main(int argc, char const *argv[]) { |
| // spn_lock_test(); |
| // http_parser_test(); |
| // server_listen(.port = "4000", .on_open = on_open); |
| server_listen(.port = "5000", .on_open = htpdmp_on_open); |
| const char *public_folder = "./public_www"; |
| if (http1_listen("3000", NULL, .on_request = on_request, |
| .public_folder = public_folder, .log_static = 0)) |
| perror("Couldn't initiate HTTP service"), exit(1); |
| server_run(.threads = THREAD_COUNT); |
| return 0; |
| } |