diff options
Diffstat (limited to 'src/command.c')
| -rw-r--r-- | src/command.c | 338 |
1 files changed, 145 insertions, 193 deletions
diff --git a/src/command.c b/src/command.c index 014d3cd6a..f222d4b8d 100644 --- a/src/command.c +++ b/src/command.c @@ -26,7 +26,6 @@ #include "update.h" #include "volume.h" #include "stats.h" -#include "list.h" #include "permission.h" #include "buffer2array.h" #include "log.h" @@ -42,70 +41,6 @@ #include "path.h" #include "os_compat.h" -#define COMMAND_PLAY "play" -#define COMMAND_PLAYID "playid" -#define COMMAND_STOP "stop" -#define COMMAND_PAUSE "pause" -#define COMMAND_STATUS "status" -#define COMMAND_KILL "kill" -#define COMMAND_CLOSE "close" -#define COMMAND_ADD "add" -#define COMMAND_ADDID "addid" -#define COMMAND_DELETE "delete" -#define COMMAND_DELETEID "deleteid" -#define COMMAND_PLAYLIST "playlist" -#define COMMAND_SHUFFLE "shuffle" -#define COMMAND_CLEAR "clear" -#define COMMAND_SAVE "save" -#define COMMAND_LOAD "load" -#define COMMAND_LISTPLAYLIST "listplaylist" -#define COMMAND_LISTPLAYLISTINFO "listplaylistinfo" -#define COMMAND_LSINFO "lsinfo" -#define COMMAND_RM "rm" -#define COMMAND_PLAYLISTINFO "playlistinfo" -#define COMMAND_PLAYLISTID "playlistid" -#define COMMAND_FIND "find" -#define COMMAND_SEARCH "search" -#define COMMAND_UPDATE "update" -#define COMMAND_NEXT "next" -#define COMMAND_PREVIOUS "previous" -#define COMMAND_LISTALL "listall" -#define COMMAND_VOLUME "volume" -#define COMMAND_REPEAT "repeat" -#define COMMAND_RANDOM "random" -#define COMMAND_STATS "stats" -#define COMMAND_CLEAR_ERROR "clearerror" -#define COMMAND_LIST "list" -#define COMMAND_MOVE "move" -#define COMMAND_MOVEID "moveid" -#define COMMAND_SWAP "swap" -#define COMMAND_SWAPID "swapid" -#define COMMAND_SEEK "seek" -#define COMMAND_SEEKID "seekid" -#define COMMAND_LISTALLINFO "listallinfo" -#define COMMAND_PING "ping" -#define COMMAND_SETVOL "setvol" -#define COMMAND_PASSWORD "password" -#define COMMAND_CROSSFADE "crossfade" -#define COMMAND_URL_HANDLERS "urlhandlers" -#define COMMAND_PLCHANGES "plchanges" -#define COMMAND_PLCHANGESPOSID "plchangesposid" -#define COMMAND_CURRENTSONG "currentsong" -#define COMMAND_ENABLE_DEV "enableoutput" -#define COMMAND_DISABLE_DEV "disableoutput" -#define COMMAND_DEVICES "outputs" -#define COMMAND_COMMANDS "commands" -#define COMMAND_NOTCOMMANDS "notcommands" -#define COMMAND_PLAYLISTCLEAR "playlistclear" -#define COMMAND_PLAYLISTADD "playlistadd" -#define COMMAND_PLAYLISTFIND "playlistfind" -#define COMMAND_PLAYLISTSEARCH "playlistsearch" -#define COMMAND_PLAYLISTMOVE "playlistmove" -#define COMMAND_PLAYLISTDELETE "playlistdelete" -#define COMMAND_TAGTYPES "tagtypes" -#define COMMAND_COUNT "count" -#define COMMAND_RENAME "rename" - #define COMMAND_STATUS_VOLUME "volume" #define COMMAND_STATUS_STATE "state" #define COMMAND_STATUS_REPEAT "repeat" @@ -134,9 +69,9 @@ typedef int (*CommandHandlerFunction) (struct client *, int, char **); * if max: -1 no max args */ struct command { const char *cmd; + unsigned reqPermission; int min; int max; - unsigned reqPermission; CommandHandlerFunction handler; }; @@ -152,8 +87,6 @@ static const char check_non_negative[] = "\"%s\" is not an integer >= 0"; static const char *current_command; static int command_listNum; -static List *commandList; - void command_success(struct client *client) { client_puts(client, "OK\n"); @@ -269,22 +202,6 @@ static int print_playlist_result(struct client *client, return -1; } -static void addCommand(const char *name, - unsigned reqPermission, - int minargs, - int maxargs, - CommandHandlerFunction handler_func) -{ - struct command *cmd = xmalloc(sizeof(*cmd)); - cmd->cmd = name; - cmd->min = minargs; - cmd->max = maxargs; - cmd->handler = handler_func; - cmd->reqPermission = reqPermission; - - insertInList(commandList, cmd->cmd, cmd); -} - static int handleUrlHandlers(struct client *client, mpd_unused int argc, mpd_unused char *argv[]) { @@ -370,13 +287,13 @@ static int commandStatus(struct client *client, playPlaylistIfPlayerStopped(); switch (getPlayerState()) { case PLAYER_STATE_STOP: - state = COMMAND_STOP; + state = "stop"; break; case PLAYER_STATE_PAUSE: - state = COMMAND_PAUSE; + state = "pause"; break; case PLAYER_STATE_PLAY: - state = COMMAND_PLAY; + state = "play"; break; } @@ -1188,43 +1105,10 @@ static int handleDevices(struct client *client, /* don't be fooled, this is the command handler for "commands" command */ static int handleCommands(struct client *client, - mpd_unused int argc, mpd_unused char *argv[]) -{ - const unsigned permission = client_get_permission(client); - ListNode *node = commandList->firstNode; - const struct command *cmd; - - while (node != NULL) { - cmd = (const struct command *) node->data; - if (cmd->reqPermission == (permission & cmd->reqPermission)) { - client_printf(client, "command: %s\n", cmd->cmd); - } - - node = node->nextNode; - } - - return 0; -} + mpd_unused int argc, mpd_unused char *argv[]); static int handleNotcommands(struct client *client, - mpd_unused int argc, mpd_unused char *argv[]) -{ - const unsigned permission = client_get_permission(client); - ListNode *node = commandList->firstNode; - const struct command *cmd; - - while (node != NULL) { - cmd = (const struct command *) node->data; - - if (cmd->reqPermission != (permission & cmd->reqPermission)) { - client_printf(client, "command: %s\n", cmd->cmd); - } - - node = node->nextNode; - } - - return 0; -} + mpd_unused int argc, mpd_unused char *argv[]); static int handlePlaylistClear(struct client *client, mpd_unused int argc, char *argv[]) @@ -1267,82 +1151,149 @@ handle_idle(struct client *client, return 1; } +/** + * The command registry. + * + * This array must be sorted! + */ +static const struct command commands[] = { + { "add", PERMISSION_ADD, 1, 1, handleAdd }, + { "addid", PERMISSION_ADD, 1, 2, handleAddId }, + { "clear", PERMISSION_CONTROL, 0, 0, handleClear }, + { "clearerror", PERMISSION_CONTROL, 0, 0, handleClearError }, + { "close", PERMISSION_NONE, -1, -1, handleClose }, + { "commands", PERMISSION_NONE, 0, 0, handleCommands }, + { "count", PERMISSION_READ, 2, -1, handleCount }, + { "crossfade", PERMISSION_CONTROL, 1, 1, handleCrossfade }, + { "currentsong", PERMISSION_READ, 0, 0, handleCurrentSong }, + { "delete", PERMISSION_CONTROL, 1, 1, handleDelete }, + { "deleteid", PERMISSION_CONTROL, 1, 1, handleDeleteId }, + { "disableoutput", PERMISSION_ADMIN, 1, 1, handleDisableDevice }, + { "enableoutput", PERMISSION_ADMIN, 1, 1, handleEnableDevice }, + { "find", PERMISSION_READ, 2, -1, handleFind }, + { "idle", PERMISSION_READ, 0, 0, handle_idle }, + { "kill", PERMISSION_ADMIN, -1, -1, handleKill }, + { "list", PERMISSION_READ, 1, -1, handleList }, + { "listall", PERMISSION_READ, 0, 1, handleListAll }, + { "listallinfo", PERMISSION_READ, 0, 1, handleListAllInfo }, + { "listplaylist", PERMISSION_READ, 1, 1, handleListPlaylist }, + { "listplaylistinfo", PERMISSION_READ, 1, 1, handleListPlaylistInfo }, + { "load", PERMISSION_ADD, 1, 1, handleLoad }, + { "lsinfo", PERMISSION_READ, 0, 1, handleLsInfo }, + { "move", PERMISSION_CONTROL, 2, 2, handleMove }, + { "moveid", PERMISSION_CONTROL, 2, 2, handleMoveId }, + { "next", PERMISSION_CONTROL, 0, 0, handleNext }, + { "notcommands", PERMISSION_NONE, 0, 0, handleNotcommands }, + { "outputs", PERMISSION_READ, 0, 0, handleDevices }, + { "password", PERMISSION_NONE, 1, 1, handlePassword }, + { "pause", PERMISSION_CONTROL, 0, 1, handlePause }, + { "ping", PERMISSION_NONE, 0, 0, handlePing }, + { "play", PERMISSION_CONTROL, 0, 1, handlePlay }, + { "playid", PERMISSION_CONTROL, 0, 1, handlePlayId }, + { "playlist", PERMISSION_READ, 0, 0, handlePlaylist }, + { "playlistadd", PERMISSION_CONTROL, 2, 2, handlePlaylistAdd }, + { "playlistclear", PERMISSION_CONTROL, 1, 1, handlePlaylistClear }, + { "playlistdelete", PERMISSION_CONTROL, 2, 2, handlePlaylistDelete }, + { "playlistfind", PERMISSION_READ, 2, -1, handlePlaylistFind }, + { "playlistid", PERMISSION_READ, 0, 1, handlePlaylistId }, + { "playlistinfo", PERMISSION_READ, 0, 1, handlePlaylistInfo }, + { "playlistmove", PERMISSION_CONTROL, 3, 3, handlePlaylistMove }, + { "playlistsearch", PERMISSION_READ, 2, -1, handlePlaylistSearch }, + { "plchanges", PERMISSION_READ, 1, 1, handlePlaylistChanges }, + { "plchangesposid", PERMISSION_READ, 1, 1, + handlePlaylistChangesPosId }, + { "previous", PERMISSION_CONTROL, 0, 0, handlePrevious }, + { "random", PERMISSION_CONTROL, 1, 1, handleRandom }, + { "rename", PERMISSION_CONTROL, 2, 2, handleRename }, + { "repeat", PERMISSION_CONTROL, 1, 1, handleRepeat }, + { "rm", PERMISSION_CONTROL, 1, 1, handleRm }, + { "save", PERMISSION_CONTROL, 1, 1, handleSave }, + { "search", PERMISSION_READ, 2, -1, handleSearch }, + { "seek", PERMISSION_CONTROL, 2, 2, handleSeek }, + { "seekid", PERMISSION_CONTROL, 2, 2, handleSeekId }, + { "setvol", PERMISSION_CONTROL, 1, 1, handleSetVol }, + { "shuffle", PERMISSION_CONTROL, 0, 0, handleShuffle }, + { "stats", PERMISSION_READ, 0, 0, handleStats }, + { "status", PERMISSION_READ, 0, 0, commandStatus }, + { "stop", PERMISSION_CONTROL, 0, 0, handleStop }, + { "swap", PERMISSION_CONTROL, 2, 2, handleSwap }, + { "swapid", PERMISSION_CONTROL, 2, 2, handleSwapId }, + { "tagtypes", PERMISSION_READ, 0, 0, handleTagTypes }, + { "update", PERMISSION_ADMIN, 0, 1, handleUpdate }, + { "urlhandlers", PERMISSION_READ, 0, 0, handleUrlHandlers }, + { "volume", PERMISSION_CONTROL, 1, 1, handleVolume }, +}; + +static const unsigned num_commands = sizeof(commands) / sizeof(commands[0]); + +/* don't be fooled, this is the command handler for "commands" command */ +static int handleCommands(struct client *client, + mpd_unused int argc, mpd_unused char *argv[]) +{ + const unsigned permission = client_get_permission(client); + const struct command *cmd; + + for (unsigned i = 0; i < num_commands; ++i) { + cmd = &commands[i]; + + if (cmd->reqPermission == (permission & cmd->reqPermission)) { + client_printf(client, "command: %s\n", cmd->cmd); + } + } + + return 0; +} + +static int handleNotcommands(struct client *client, + mpd_unused int argc, mpd_unused char *argv[]) +{ + const unsigned permission = client_get_permission(client); + const struct command *cmd; + + for (unsigned i = 0; i < num_commands; ++i) { + cmd = &commands[i]; + + if (cmd->reqPermission != (permission & cmd->reqPermission)) { + client_printf(client, "command: %s\n", cmd->cmd); + } + } + + return 0; +} + void initCommands(void) { - commandList = makeList(free, 1); - - /* addCommand(name, permission, min, max, handler); */ - addCommand(COMMAND_PLAY, PERMISSION_CONTROL, 0, 1, handlePlay); - addCommand(COMMAND_PLAYID, PERMISSION_CONTROL, 0, 1, handlePlayId); - addCommand(COMMAND_STOP, PERMISSION_CONTROL, 0, 0, handleStop); - addCommand(COMMAND_CURRENTSONG, PERMISSION_READ, 0, 0, handleCurrentSong); - addCommand(COMMAND_PAUSE, PERMISSION_CONTROL, 0, 1, handlePause); - addCommand(COMMAND_STATUS, PERMISSION_READ, 0, 0, commandStatus); - addCommand(COMMAND_KILL, PERMISSION_ADMIN, -1, -1, handleKill); - addCommand(COMMAND_CLOSE, PERMISSION_NONE, -1, -1, handleClose); - addCommand(COMMAND_ADD, PERMISSION_ADD, 1, 1, handleAdd); - addCommand(COMMAND_ADDID, PERMISSION_ADD, 1, 2, handleAddId); - addCommand(COMMAND_DELETE, PERMISSION_CONTROL, 1, 1, handleDelete); - addCommand(COMMAND_DELETEID, PERMISSION_CONTROL, 1, 1, handleDeleteId); - addCommand(COMMAND_PLAYLIST, PERMISSION_READ, 0, 0, handlePlaylist); - addCommand(COMMAND_PLAYLISTID, PERMISSION_READ, 0, 1, handlePlaylistId); - addCommand(COMMAND_SHUFFLE, PERMISSION_CONTROL, 0, 0, handleShuffle); - addCommand(COMMAND_CLEAR, PERMISSION_CONTROL, 0, 0, handleClear); - addCommand(COMMAND_SAVE, PERMISSION_CONTROL, 1, 1, handleSave); - addCommand(COMMAND_LOAD, PERMISSION_ADD, 1, 1, handleLoad); - addCommand(COMMAND_LISTPLAYLIST, PERMISSION_READ, 1, 1, handleListPlaylist); - addCommand(COMMAND_LISTPLAYLISTINFO, PERMISSION_READ, 1, 1, handleListPlaylistInfo); - addCommand(COMMAND_LSINFO, PERMISSION_READ, 0, 1, handleLsInfo); - addCommand(COMMAND_RM, PERMISSION_CONTROL, 1, 1, handleRm); - addCommand(COMMAND_PLAYLISTINFO, PERMISSION_READ, 0, 1, handlePlaylistInfo); - addCommand(COMMAND_FIND, PERMISSION_READ, 2, -1, handleFind); - addCommand(COMMAND_SEARCH, PERMISSION_READ, 2, -1, handleSearch); - addCommand(COMMAND_UPDATE, PERMISSION_ADMIN, 0, 1, handleUpdate); - addCommand(COMMAND_NEXT, PERMISSION_CONTROL, 0, 0, handleNext); - addCommand(COMMAND_PREVIOUS, PERMISSION_CONTROL, 0, 0, handlePrevious); - addCommand(COMMAND_LISTALL, PERMISSION_READ, 0, 1, handleListAll); - addCommand(COMMAND_VOLUME, PERMISSION_CONTROL, 1, 1, handleVolume); - addCommand(COMMAND_REPEAT, PERMISSION_CONTROL, 1, 1, handleRepeat); - addCommand(COMMAND_RANDOM, PERMISSION_CONTROL, 1, 1, handleRandom); - addCommand(COMMAND_STATS, PERMISSION_READ, 0, 0, handleStats); - addCommand(COMMAND_CLEAR_ERROR, PERMISSION_CONTROL, 0, 0, handleClearError); - addCommand(COMMAND_LIST, PERMISSION_READ, 1, -1, handleList); - addCommand(COMMAND_MOVE, PERMISSION_CONTROL, 2, 2, handleMove); - addCommand(COMMAND_MOVEID, PERMISSION_CONTROL, 2, 2, handleMoveId); - addCommand(COMMAND_SWAP, PERMISSION_CONTROL, 2, 2, handleSwap); - addCommand(COMMAND_SWAPID, PERMISSION_CONTROL, 2, 2, handleSwapId); - addCommand(COMMAND_SEEK, PERMISSION_CONTROL, 2, 2, handleSeek); - addCommand(COMMAND_SEEKID, PERMISSION_CONTROL, 2, 2, handleSeekId); - addCommand(COMMAND_LISTALLINFO, PERMISSION_READ, 0, 1, handleListAllInfo); - addCommand(COMMAND_PING, PERMISSION_NONE, 0, 0, handlePing); - addCommand(COMMAND_SETVOL, PERMISSION_CONTROL, 1, 1, handleSetVol); - addCommand(COMMAND_PASSWORD, PERMISSION_NONE, 1, 1, handlePassword); - addCommand(COMMAND_CROSSFADE, PERMISSION_CONTROL, 1, 1, handleCrossfade); - addCommand(COMMAND_URL_HANDLERS, PERMISSION_READ, 0, 0, handleUrlHandlers); - addCommand(COMMAND_PLCHANGES, PERMISSION_READ, 1, 1, handlePlaylistChanges); - addCommand(COMMAND_PLCHANGESPOSID, PERMISSION_READ, 1, 1, handlePlaylistChangesPosId); - addCommand(COMMAND_ENABLE_DEV, PERMISSION_ADMIN, 1, 1, handleEnableDevice); - addCommand(COMMAND_DISABLE_DEV, PERMISSION_ADMIN, 1, 1, handleDisableDevice); - addCommand(COMMAND_DEVICES, PERMISSION_READ, 0, 0, handleDevices); - addCommand(COMMAND_COMMANDS, PERMISSION_NONE, 0, 0, handleCommands); - addCommand(COMMAND_NOTCOMMANDS, PERMISSION_NONE, 0, 0, handleNotcommands); - addCommand(COMMAND_PLAYLISTCLEAR, PERMISSION_CONTROL, 1, 1, handlePlaylistClear); - addCommand(COMMAND_PLAYLISTADD, PERMISSION_CONTROL, 2, 2, handlePlaylistAdd); - addCommand(COMMAND_PLAYLISTFIND, PERMISSION_READ, 2, -1, handlePlaylistFind); - addCommand(COMMAND_PLAYLISTSEARCH, PERMISSION_READ, 2, -1, handlePlaylistSearch); - addCommand(COMMAND_PLAYLISTMOVE, PERMISSION_CONTROL, 3, 3, handlePlaylistMove); - addCommand(COMMAND_PLAYLISTDELETE, PERMISSION_CONTROL, 2, 2, handlePlaylistDelete); - addCommand(COMMAND_TAGTYPES, PERMISSION_READ, 0, 0, handleTagTypes); - addCommand(COMMAND_COUNT, PERMISSION_READ, 2, -1, handleCount); - addCommand(COMMAND_RENAME, PERMISSION_CONTROL, 2, 2, handleRename); - addCommand("idle", PERMISSION_READ, 0, 0, handle_idle); - - sortList(commandList); +#ifndef NDEBUG + /* ensure that the command list is sorted */ + for (unsigned i = 0; i < num_commands - 1; ++i) + assert(strcmp(commands[i].cmd, commands[i + 1].cmd) < 0); +#endif } void finishCommands(void) { - freeList(commandList); +} + +static const struct command * +command_lookup(const char *name) +{ + unsigned a = 0, b = num_commands, i; + int cmp; + + /* binary search */ + do { + i = (a + b) / 2; + + cmp = strcmp(name, commands[i].cmd); + if (cmp == 0) + return &commands[i]; + else if (cmp < 0) + b = i; + else if (cmp > 0) + a = i + 1; + } while (a < b); + + return NULL; } static int @@ -1396,7 +1347,8 @@ getCommandEntryAndCheckArgcAndPermission(struct client *client, if (argc == 0) return NULL; - if (!findInList(commandList, argv[0], (void *)&cmd)) { + cmd = command_lookup(argv[0]); + if (cmd == NULL) { if (client != NULL) command_error(client, ACK_ERROR_UNKNOWN, "unknown command \"%s\"", argv[0]); |