X-Git-Url: https://git.cworth.org/git?p=ttt;a=blobdiff_plain;f=src%2Fttt-client.c;h=c198d3a15cfdb6779bbeea9f40b2ea7ddcfe3dae;hp=81f6e13e14268227e23a640f8288d933e7e66e15;hb=122d6b8810d67c601fe260e25ec323bb001698af;hpb=b18c78a24034922e7b9152a03683cf930d703dd0

diff --git a/src/ttt-client.c b/src/ttt-client.c
index 81f6e13..c198d3a 100644
--- a/src/ttt-client.c
+++ b/src/ttt-client.c
@@ -20,15 +20,15 @@
  */
 
 #include "ttt-client.h"
-
-#define YY_DECL int yylex (yyscan_t yyscanner, ttt_token_t *token)
-
 #include "ttt-error.h"
-#include "ttt-lex.h"
 #include "ttt-server.h"
 #include "ttt-socket.h"
 #include "ttt-token.h"
 
+#define YY_DECL int yylex (yyscan_t yyscanner, ttt_token_t *token)
+#include "ttt-lex.h"
+YY_DECL;
+
 struct _ttt_client {
     pthread_mutex_t mutex;
     pthread_t       thread;
@@ -40,14 +40,14 @@ struct _ttt_client {
     char            **request_strings;
     int             num_request_strings;
     
-    char            *name;
+    char            *username;
     ttt_bool_t      registered;
     int             num_wins;
 };
 
 typedef ttt_error_t (*ttt_command_func_t) (ttt_client_t *client,
-					   char **args,
-					   int num_args);
+					   char         **args,
+					   int          num_args);
 
 static ttt_error_t
 _ttt_client_execute_helo (ttt_client_t *client,
@@ -59,6 +59,11 @@ _ttt_client_execute_who (ttt_client_t *client,
 			 char         **args,
 			 int          num_args);
 
+static ttt_error_t
+_ttt_client_execute_statistics (ttt_client_t *client,
+				char         **args,
+				int          num_args);
+
 static ttt_error_t
 _ttt_client_execute_message (ttt_client_t *client,
 			     char         **args,
@@ -66,33 +71,81 @@ _ttt_client_execute_message (ttt_client_t *client,
 
 static ttt_error_t
 _ttt_client_execute_help (ttt_client_t  *client,
-			  char	   **args,
-			  int	   num_args);
+			  char          **args,
+			  int           num_args);
 
 static ttt_error_t
 _ttt_client_execute_version (ttt_client_t  *client,
-			     char	   **args,
-			     int	   num_args);
+			     char          **args,
+			     int           num_args);
 
 static ttt_error_t
 _ttt_client_execute_quit (ttt_client_t *client,
 			  char         **args,
 			  int          num_args);
 
+static ttt_error_t
+_ttt_client_execute_invite (ttt_client_t *client,
+			    char         **args,
+			    int          num_args);
+
+static ttt_error_t
+_ttt_client_execute_accept (ttt_client_t *client,
+			    char         **args,
+			    int          num_args);
+
+static ttt_error_t
+_ttt_client_execute_retract (ttt_client_t *client,
+			     char         **args,
+			     int          num_args);
+
+static ttt_error_t
+_ttt_client_execute_decline (ttt_client_t *client,
+			     char         **args,
+			     int          num_args);
+
 typedef struct _ttt_command_description {
     const char         *command;
     int                args_min;
     int                args_max;
     ttt_command_func_t execute;
+    const char         *usage;
+    const char         *description;
 } ttt_command_description_t;
 
 ttt_command_description_t command_descriptions[] = {
-    {"HELO",    1, 1, _ttt_client_execute_helo   },
-    {"WHO",     0, 0, _ttt_client_execute_who    },
-    {"MESSAGE", 1, 1, _ttt_client_execute_message},
-    {"HELP",    0, 1, _ttt_client_execute_help   },
-    {"VERSION", 1, 1, _ttt_client_execute_version},
-    {"QUIT",    0, 0, _ttt_client_execute_quit   }
+    {"HELO",    1, 1, _ttt_client_execute_helo,
+     "HELO <username>         ", "Register."},
+
+    {"HELP",    0, 1, _ttt_client_execute_help,
+     "HELP <command>          ", "Display help for a command."},
+
+    {"INVITE",  1, 1, _ttt_client_execute_invite,
+     "INVITE <username>       ", "Invite a player to play a game."},
+
+    {"ACCEPT",  1, 1, _ttt_client_execute_accept,
+     "ACCEPT <username>       ", "Accept a game invitation."},
+
+    {"RETRACT", 1, 1, _ttt_client_execute_retract,
+     "RETRACT <username>      ", "Retract a game invitation."},
+
+    {"DECLINE", 1, 1, _ttt_client_execute_decline,
+     "DECLINE <username>      ", "Decline a game invitation."},
+
+    {"MESSAGE", 1, 1, _ttt_client_execute_message,
+     "MESSAGE <message>       ", "Send a message to everyone."},
+
+    {"STATISTICS", 1, 1, _ttt_client_execute_statistics,
+     "STATISTICS <username>   ", "Lists the statistics for the specified user."},
+
+    {"QUIT",    0, 0, _ttt_client_execute_quit,
+     "QUIT                    ", "Quit session."},
+
+    {"VERSION", 1, 1, _ttt_client_execute_version,
+     "VERSION <client-version>", "Negotiate protocol version."},
+
+    {"WHO",     0, 0, _ttt_client_execute_who,
+     "WHO                     ", "List registered users."}
 };
 
 #define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
@@ -102,30 +155,34 @@ _ttt_client_execute_helo (ttt_client_t *client,
 			  char         **args,
 			  int          num_args)
 {
+    char        *response;
+    char        *notice;
     ttt_error_t error;
-    char *response;
-    char *notice;
 
     assert (num_args == 1);
 
-    ttt_client_set_name (client, args[0]);
+    if (!(client->registered))
+    {
+	ttt_client_set_username (client, args[0]);
 
-    error = ttt_server_register_client (client->server, client);
-    if (error)
-	return error;
-    client->registered = TRUE;
+	error = ttt_server_register_client (client->server, client);
+	if (error)
+	    return error;
+	client->registered = TRUE;
+
+	xasprintf (&notice, "NOTICE USER %s\r\n",
+		   ttt_client_get_username (client));
+	ttt_server_broadcast (client->server, notice);
+
+	free (notice);
+    }
 
     xasprintf (&response, "HELO %s %s %s\r\n",
-	       client->name,
+	       ttt_client_get_username (client),
 	       ttt_server_get_host (client->server),
 	       ttt_server_get_port (client->server));
     ttt_client_send (client, response);
 
-    xasprintf (&notice, "NOTICE USER %s\r\n",
-	       client->name);
-    ttt_server_broadcast (client->server, notice);
-
-    free (notice);
     free (response);
 
     return TTT_ERROR_NONE;
@@ -151,25 +208,64 @@ _ttt_client_execute_who (ttt_client_t *client,
     return TTT_ERROR_NONE;
 }
 
+static ttt_error_t
+_ttt_client_execute_statistics (ttt_client_t *client,
+				char         **args,
+				int          num_args)
+{
+    const char   *argusername;
+    ttt_client_t *argclient;
+    char         *response;
+    ttt_error_t  error;
+
+    assert (num_args == 1);
+
+    argusername = args[0];
+
+    if (!client->registered)
+	return TTT_ERROR_NO_NAME_SET;
+
+    error = ttt_server_get_client_from_username (client->server,
+						 argusername,
+						 &argclient);
+    if (error)
+	return error;
+
+    xasprintf (&response, "STATISTICS %s \"\r\n"
+	       "TICTACTOE WINS %d\r\n"
+	       "\"\r\n",
+	       ttt_client_get_username(argclient),
+	       ttt_client_get_num_wins(argclient));
+
+    ttt_client_send (client, response);
+
+    free (response);
+
+    return TTT_ERROR_NONE;
+}
+
 static ttt_error_t
 _ttt_client_execute_message (ttt_client_t  *client,
-			     char	   **args,
-			     int	   num_args)
+			     char          **args,
+			     int           num_args)
 {
-    char *response;
-    char *notice;
+    const char *argmessage;
+    char       *response;
+    char       *notice;
 
     assert (num_args == 1);
 
+    argmessage = args[0];
+
     if (!client->registered)
 	return TTT_ERROR_NO_NAME_SET;
 
-    xasprintf(&response, "MESSAGE\r\n");
+    xasprintf (&response, "MESSAGE\r\n");
     ttt_client_send (client, response);
 
-    xasprintf(&notice, "NOTICE MESSAGE %s \"%s\"\r\n",
-	      client->name,
-	      args[0]);
+    xasprintf (&notice, "NOTICE MESSAGE %s \"%s\"\r\n",
+	       ttt_client_get_username(client),
+	       argmessage);
     ttt_server_broadcast (client->server, notice);
 
     free (notice);
@@ -180,14 +276,49 @@ _ttt_client_execute_message (ttt_client_t  *client,
 
 static ttt_error_t
 _ttt_client_execute_help (ttt_client_t  *client,
-			  char	   **args,
-			  int	   num_args)
+			  char          **args,
+			  int           num_args)
 {
-    char *response;
-
-    /* XXX: NYI */
+    char                      *response;
+    char                      *argcommand;
+    ttt_command_description_t *desc;
+    ttt_bool_t                is_command = FALSE;
+    int i;
+    
+    if (num_args == 0) {
+	xasprintf (&response, "HELP \"\r\n"
+		   "Available Commands:\r\n");
+	for (i = 0; i < ARRAY_SIZE(command_descriptions); i++) {
+	    desc = &command_descriptions[i];
+	    xasprintf (&response, "%s\r\n  %s - %s\r\n",
+		       response,
+		       desc->usage,
+		       desc->description);
+	}
+	xasprintf (&response, "%s\"\r\n", response);
+    } else {
+	argcommand = args[0];
+	for (i = 0; i < ARRAY_SIZE(command_descriptions); i++) {
+	    desc = &command_descriptions[i];
+	    if (strcasecmp (desc->command, argcommand) == 0) {
+		is_command = TRUE;
+		xasprintf (&response, "HELP %s \"\r\n"
+			   "%s\r\n"
+			   "\r\n"
+			   "Usage:\r\n"
+			   "  %s\r\n"
+			   "\"\r\n",
+			   desc->command,
+			   desc->description,
+			   desc->usage);
+		/* XXX: Add detailed help. */
+	    }
+	}
+    }
+    
+    if ((num_args == 1) && (!is_command))
+	return TTT_ERROR_SYNTAX;
 
-    xasprintf(&response, "HELP - NYI\r\n");
     ttt_client_send (client, response);
 
     free (response);
@@ -196,17 +327,33 @@ _ttt_client_execute_help (ttt_client_t  *client,
 
 static ttt_error_t
 _ttt_client_execute_version (ttt_client_t  *client,
-			     char	   **args,
-			     int	   num_args)
+			     char          **args,
+			     int           num_args)
 {
     char *response;
+    char *argversion;
+    int  version;
+    int i;
 
     assert (num_args == 1);
 
-    /* XXX: Argument is being ignored.
-       This is not completely implemented. */
+    argversion = args[0];
 
-    xasprintf (&response, "VERSION 1\r\n");
+    /* Verify that provided version arg is a positive integer */
+    for (i = 0; i < strlen(argversion); i++)
+	if (!isdigit (argversion[i]))
+	    return TTT_ERROR_SYNTAX;
+
+    version = atoi (argversion);
+
+    if (version < 1)
+	return TTT_ERROR_SYNTAX;
+
+    if (version > TTT_SERVER_PROTOCOL_VERSION)
+	version = TTT_SERVER_PROTOCOL_VERSION;
+
+    xasprintf (&response, "VERSION %d\r\n",
+	       version);
     ttt_client_send (client, response);
 
     free (response);
@@ -226,7 +373,7 @@ _ttt_client_execute_quit (ttt_client_t *client,
 	return TTT_ERROR_QUIT_REQUESTED;
     
     xasprintf (&notice, "NOTICE QUIT %s\r\n",
-	       client->name);
+	       ttt_client_get_username(client));
     ttt_server_broadcast (client->server, notice);
     
     free (notice);
@@ -234,6 +381,182 @@ _ttt_client_execute_quit (ttt_client_t *client,
     return TTT_ERROR_QUIT_REQUESTED;
 }
 
+static ttt_error_t
+_ttt_client_execute_invite (ttt_client_t *client,
+			    char         **args,
+			    int          num_args)
+{
+    const char   *invitee_username;
+    ttt_client_t *invitee;
+    char         *response;
+    char         *notice;
+    ttt_error_t  error;
+
+    assert (num_args == 1);
+
+    invitee_username = args[0];
+
+    if (!client->registered)
+        return TTT_ERROR_NO_NAME_SET;
+
+    error = ttt_server_get_client_from_username (client->server,
+						 invitee_username,
+						 &invitee);
+    if (error)
+	return error;
+
+    ttt_server_add_invite (client->server,
+			   client,
+			   invitee);
+
+    xasprintf (&response, "INVITE\r\n");
+    ttt_client_send (client, response);
+
+    xasprintf (&notice, "NOTICE INVITE %s %s\r\n",
+	       ttt_client_get_username(client),
+	       ttt_client_get_username(invitee));
+    ttt_server_broadcast (client->server, notice);
+
+    free (notice);
+    free (response);
+
+    return TTT_ERROR_NONE;
+}
+
+static ttt_error_t
+_ttt_client_execute_accept (ttt_client_t *client,
+			    char         **args,
+			    int          num_args)
+{
+    const char   *actor_username;
+    ttt_client_t *actor;
+    char         *response;
+    char         *notice;
+    ttt_error_t  error;
+
+    assert (num_args == 1);
+
+    actor_username = args[0];
+
+    if (!client->registered)
+        return TTT_ERROR_NO_NAME_SET;
+
+    error = ttt_server_get_client_from_username (client->server,
+						 actor_username,
+						 &actor);
+    if (error)
+	return error;
+
+    error = ttt_server_remove_invite (client->server,
+				      actor,
+				      client);
+    if (error)
+	return error;
+
+    xasprintf (&response, "ACCEPT\r\n");
+    ttt_client_send (client, response);
+
+    xasprintf (&notice, "NOTICE ACCEPT %s %s\r\n",
+	       ttt_client_get_username(client),
+	       ttt_client_get_username(actor));
+    ttt_server_broadcast (client->server, notice);
+
+    /* XXX: Start a new game */
+
+    free (notice);
+    free (response);
+
+    return TTT_ERROR_NONE;
+}
+
+static ttt_error_t
+_ttt_client_execute_retract (ttt_client_t *client,
+			     char         **args,
+			     int          num_args)
+{
+    const char   *invitee_username;
+    ttt_client_t *invitee;
+    char         *response;
+    char         *notice;
+    ttt_error_t  error;
+
+    assert (num_args == 1);
+
+    invitee_username = args[0];
+
+    if (!client->registered)
+        return TTT_ERROR_NO_NAME_SET;
+
+    error = ttt_server_get_client_from_username (client->server,
+						 invitee_username,
+						 &invitee);
+    if (error)
+	return error;
+
+    error = ttt_server_remove_invite (client->server,
+				      client,
+				      invitee);
+    if (error)
+	return error;
+    
+    xasprintf (&response, "RETRACT\r\n");
+    ttt_client_send (client, response);
+
+    xasprintf (&notice, "NOTICE RETRACT %s %s\r\n",
+	       ttt_client_get_username(client),
+	       ttt_client_get_username(invitee));
+    ttt_server_broadcast (client->server, notice);
+
+    free (notice);
+    free (response);
+
+    return TTT_ERROR_NONE;
+}
+
+static ttt_error_t
+_ttt_client_execute_decline (ttt_client_t *client,
+			     char         **args,
+			     int          num_args)
+{
+    const char   *actor_username;
+    ttt_client_t *actor;
+    char         *response;
+    char         *notice;
+    ttt_error_t  error;
+
+    assert (num_args == 1);
+
+    actor_username = args[0];
+
+    if (!client->registered)
+        return TTT_ERROR_NO_NAME_SET;
+
+    error = ttt_server_get_client_from_username (client->server,
+						 actor_username,
+						 &actor);
+    if (error)
+	return error;
+
+    error = ttt_server_remove_invite (client->server,
+				      actor,
+				      client);
+    if (error)
+	return error;
+
+    xasprintf (&response, "DECLINE\r\n");
+    ttt_client_send (client, response);
+
+    xasprintf (&notice, "NOTICE DECLINE %s %s\r\n",
+	       ttt_client_get_username(client),
+	       ttt_client_get_username(actor));
+    ttt_server_broadcast (client->server, notice);
+
+    free (notice);
+    free (response);
+
+    return TTT_ERROR_NONE;
+}
+
 static void
 _free_request (ttt_client_t *client);
 
@@ -256,7 +579,7 @@ _ttt_client_init (ttt_client_t	*client,
     client->request_strings = NULL;
     client->num_request_strings = 0;
 
-    client->name = NULL;
+    client->username = NULL;
     client->registered = FALSE;
     client->num_wins = 0;
 }
@@ -269,8 +592,8 @@ _ttt_client_fini (ttt_client_t *client)
     if (client->registered)
 	ttt_server_unregister_client (client->server, client);
 
-    free (client->name);
-    client->name = NULL;
+    free (client->username);
+    client->username = NULL;
 
     yylex_destroy (client->scanner);
     shutdown (client->socket, SHUT_RDWR);
@@ -312,7 +635,7 @@ _free_request (ttt_client_t *client)
 static ttt_status_t
 _read_request (ttt_client_t *client)
 {
-    ttt_token_t token;
+    ttt_token_t      token;
     ttt_token_type_t token_type;
 
     _free_request (client);
@@ -341,21 +664,22 @@ _read_request (ttt_client_t *client)
 static ttt_error_t
 _execute_request (ttt_client_t *client)
 {
-    int i;
-
-    char *command = client->request_strings[0];
-    int num_args = client->num_request_strings-1;
+    char                      *command = client->request_strings[0];
+    int                       num_args = client->num_request_strings - 1;
     ttt_command_description_t *desc;
+    int i;
 
-    for (i=0; i < strlen (command); i++)
+    for (i = 0; i < strlen (command); i++)
 	command[i] = toupper (command[i]);
 
-    for (i=0; i < ARRAY_SIZE(command_descriptions); i++) {
+    for (i = 0; i < ARRAY_SIZE(command_descriptions); i++) {
 	desc = &command_descriptions[i];
-	if (strcmp(command, desc->command) == 0) {
+	if (strcmp (command, desc->command) == 0) {
 	    if ((num_args < desc->args_min) || (num_args > desc->args_max))
 		return TTT_ERROR_SYNTAX;
-	    return (desc->execute) (client, &client->request_strings[1], num_args);
+	    return (desc->execute) (client,
+				    &client->request_strings[1],
+				    num_args);
 	}
     }
 
@@ -366,11 +690,10 @@ static void *
 _handle_requests_thread (void *closure)
 {
     ttt_status_t status;
-    ttt_error_t error;
     ttt_client_t *client = closure;
+    ttt_error_t  error;
 
     while (1) {
-
 	status = _read_request (client);
 	if (status == TTT_STATUS_EOF)
 	    break;
@@ -424,17 +747,17 @@ ttt_client_send (ttt_client_t *client, const char *message)
 
 /* Exported: See ttt-client.h for documentation. */
 const char*
-ttt_client_get_name (ttt_client_t *client)
+ttt_client_get_username (ttt_client_t *client)
 {
-    return client->name;
+    return client->username;
 }
 
 /* Exported: See ttt-client.h for documentation. */
 void
-ttt_client_set_name (ttt_client_t *client, const char *name)
+ttt_client_set_username (ttt_client_t *client, const char *username)
 {
-    free (client->name);
-    client->name = xstrdup (name);
+    free (client->username);
+    client->username = xstrdup (username);
 }
 
 /* Exported: See ttt-client.h for documentation. */
@@ -443,3 +766,9 @@ ttt_client_get_num_wins (ttt_client_t *client)
 {
     return client->num_wins;
 }
+
+/* This is just to keep the compiler quiet about a function declared
+ * static but never defined. Just an annoying bug in flex's output. */
+static int yy_init_globals (yyscan_t yyscanner) {return 0;}
+void use_yy_init_globals (void);
+void use_yy_init_globals (void) {yyscan_t scan; yy_init_globals(scan);}