diff options
Diffstat (limited to '')
| -rw-r--r-- | MCServer/Plugins/InfoReg.lua | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/MCServer/Plugins/InfoReg.lua b/MCServer/Plugins/InfoReg.lua new file mode 100644 index 000000000..27e63aa5b --- /dev/null +++ b/MCServer/Plugins/InfoReg.lua @@ -0,0 +1,198 @@ + +-- InfoReg.lua + +-- Implements registration functions that process g_PluginInfo + + + + + +--- Lists all the subcommands that the player has permissions for +local function ListSubcommands(a_Player, a_Subcommands, a_CmdString) + if (a_Player == nil) then + LOGINFO("The " .. a_CmdString .. " command requires another verb:") + else + a_Player:SendMessage("The " .. a_CmdString .. " command requires another verb:") + end + + -- Enum all the subcommands: + local Verbs = {}; + for cmd, info in pairs(a_Subcommands) do + if (a_Player:HasPermission(info.Permission or "")) then + table.insert(Verbs, " " .. a_CmdString .. " " .. cmd); + end + end + table.sort(Verbs); + + -- Send the list: + if (a_Player == nil) then + for idx, verb in ipairs(Verbs) do + LOGINFO(verb); + end + else + for idx, verb in ipairs(Verbs) do + a_Player:SendMessage(verb); + end + end +end + + + + + +--- This is a generic command callback used for handling multicommands' parent commands +-- For example, if there are "/gal save" and "/gal load" commands, this callback handles the "/gal" command +-- It is used for both console and in-game commands; the console version has a_Player set to nil +local function MultiCommandHandler(a_Split, a_Player, a_CmdString, a_CmdInfo, a_Level) + local Verb = a_Split[a_Level + 1]; + if (Verb == nil) then + -- No verb was specified. If there is a handler for the upper level command, call it: + if (a_CmdInfo.Handler ~= nil) then + return a_CmdInfo.Handler(a_Split, a_Player); + end + -- Let the player know they need to give a subcommand: + ListSubcommands(a_Player, a_CmdInfo.Subcommands, a_CmdString); + return true; + end + + -- A verb was specified, look it up in the subcommands table: + local Subcommand = a_CmdInfo.Subcommands[Verb]; + if (Subcommand == nil) then + if (a_Level > 1) then + -- This is a true subcommand, display the message and make MCS think the command was handled + -- Otherwise we get weird behavior: for "/cmd verb" we get "unknown command /cmd" although "/cmd" is valid + if (a_Player == nil) then + LOGWARNING("The " .. a_CmdString .. " command doesn't support verb " .. Verb) + else + a_Player:SendMessage("The " .. a_CmdString .. " command doesn't support verb " .. Verb) + end + return true; + end + -- This is a top-level command, let MCS handle the unknown message + return false; + end + + -- Check the permission: + if (a_Player ~= nil) then + if not(a_Player:HasPermission(Subcommand.Permission or "")) then + a_Player:SendMessage("You don't have permission to execute this command"); + return true; + end + end + + -- If the handler is not valid, check the next sublevel: + if (Subcommand.Handler == nil) then + if (Subcommand.Subcommands == nil) then + LOG("Cannot find handler for command " .. a_CmdString .. " " .. Verb); + return false; + end + MultiCommandHandler(a_Split, a_Player, a_CmdString .. " " .. Verb, Subcommand, a_Level + 1); + return true; + end + + -- Execute: + return Subcommand.Handler(a_Split, a_Player); +end + + + + + +--- Registers all commands specified in the g_PluginInfo.Commands +function RegisterPluginInfoCommands() + -- A sub-function that registers all subcommands of a single command, using the command's Subcommands table + -- The a_Prefix param already contains the space after the previous command + -- a_Level is the depth of the subcommands being registered, with 1 being the top level command + local function RegisterSubcommands(a_Prefix, a_Subcommands, a_Level) + assert(a_Subcommands ~= nil); + + -- A table that will hold aliases to subcommands temporarily, during subcommand iteration + local AliasTable = {} + + -- Iterate through the subcommands, register them, and accumulate aliases: + for cmd, info in pairs(a_Subcommands) do + local CmdName = a_Prefix .. cmd; + local Handler = info.Handler; + -- Provide a special handler for multicommands: + if (info.Subcommands ~= nil) then + Handler = function(a_Split, a_Player) + return MultiCommandHandler(a_Split, a_Player, CmdName, info, a_Level); + end + end + + if (Handler == nil) then + LOGWARNING(g_PluginInfo.Name .. ": Invalid handler for command " .. CmdName .. ", command will not be registered."); + else + local HelpString; + if (info.HelpString ~= nil) then + HelpString = " - " .. info.HelpString; + else + HelpString = ""; + end + cPluginManager.BindCommand(CmdName, info.Permission or "", Handler, HelpString); + -- Register all aliases for the command: + if (info.Alias ~= nil) then + if (type(info.Alias) == "string") then + info.Alias = {info.Alias}; + end + for idx, alias in ipairs(info.Alias) do + cPluginManager.BindCommand(a_Prefix .. alias, info.Permission or "", Handler, HelpString); + -- Also copy the alias's info table as a separate subcommand, + -- so that MultiCommandHandler() handles it properly. Need to off-load into a separate table + -- than the one we're currently iterating and join after the iterating. + AliasTable[alias] = info + end + end + end -- else (if Handler == nil) + + -- Recursively register any subcommands: + if (info.Subcommands ~= nil) then + RegisterSubcommands(a_Prefix .. cmd .. " ", info.Subcommands, a_Level + 1); + end + end -- for cmd, info - a_Subcommands[] + + -- Add the subcommand aliases that were off-loaded during registration: + for alias, info in pairs(AliasTable) do + a_Subcommands[alias] = info + end + AliasTable = {} + end + + -- Loop through all commands in the plugin info, register each: + RegisterSubcommands("", g_PluginInfo.Commands, 1); +end + + + + + +--- Registers all console commands specified in the g_PluginInfo.ConsoleCommands +function RegisterPluginInfoConsoleCommands() + -- A sub-function that registers all subcommands of a single command, using the command's Subcommands table + -- The a_Prefix param already contains the space after the previous command + local function RegisterSubcommands(a_Prefix, a_Subcommands, a_Level) + assert(a_Subcommands ~= nil); + + for cmd, info in pairs(a_Subcommands) do + local CmdName = a_Prefix .. cmd; + local Handler = info.Handler + if (Handler == nil) then + Handler = function(a_Split) + return MultiCommandHandler(a_Split, nil, CmdName, info, a_Level); + end + end + cPluginManager.BindConsoleCommand(CmdName, Handler, info.HelpString or ""); + -- Recursively register any subcommands: + if (info.Subcommands ~= nil) then + RegisterSubcommands(a_Prefix .. cmd .. " ", info.Subcommands, a_Level + 1); + end + end + end + + -- Loop through all commands in the plugin info, register each: + RegisterSubcommands("", g_PluginInfo.ConsoleCommands, 1); +end + + + + |