mirror of
https://github.com/jech/galene.git
synced 2024-11-10 02:35:58 +01:00
Rework the command parser, implement /help.
This commit is contained in:
Juliusz Chroboczek
parent
29bd67cc22
commit
db4ea57883
1 changed files with 234 additions and 87 deletions
321
static/sfu.js
321
static/sfu.js
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@ -1498,6 +1498,144 @@ function clearChat() {
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document.getElementById('box').textContent = '';
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}
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/**
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* A command known to the command-line parser.
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*
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* @typedef {Object} command
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* @property {string} [parameters]
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* - A user-readable list of parameters.
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* @property {string} [description]
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* - A user-readable description, null if undocumented.
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* @property {() => string} [predicate]
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* - Returns null if the command is available.
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* @property {(c: string, r: string) => void} f
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*/
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/**
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* The set of commands known to the command-line parser.
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*
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* @type {Object.<string,command>}
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*/
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let commands = {}
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function operatorPredicate() {
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if(serverConnection.permissions.op)
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return null;
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return 'You are not an operator';
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}
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function recordingPredicate() {
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if(serverConnection.permissions.record)
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return null;
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return 'You are not allowed to record';
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}
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commands.help = {
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description: 'display this help',
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f: (c, r) => {
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/** @type {string[]} */
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let cs = [];
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for(let cmd in commands) {
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let c = commands[cmd];
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if(!c.description)
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continue;
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if(c.predicate && c.predicate())
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continue;
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cs.push(`/${cmd}${c.parameters?' ' + c.parameters:''}: ${c.description}`);
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}
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cs.sort();
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let s = '';
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for(let i = 0; i < cs.length; i++)
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s = s + cs[i] + '\n';
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addToChatbox(null, null, null, Date.now(), null, s);
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}
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};
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commands.me = {
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description: 'send action message',
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f: (c, r) => {
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// handled as a special case
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throw new Error("this shouldn't happen");
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}
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};
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commands.set = {
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f: (c, r) => {
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if(!r) {
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let settings = getSettings();
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let s = "";
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for(let key in settings)
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s = s + `${key}: ${JSON.stringify(settings[key])}\n`;
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addToChatbox(null, null, null, Date.now(), null, s);
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return;
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}
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let p = parseCommand(r);
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let value;
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if(p[1]) {
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value = JSON.parse(p[1])
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} else {
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value = true;
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}
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updateSetting(p[0], value);
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reflectSettings();
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}
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};
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commands.unset = {
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f: (c, r) => {
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delSetting(r.trim());
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return;
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}
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};
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commands.leave = {
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description: "leave group",
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f: (c, r) => {
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serverConnection.close();
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}
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};
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commands.clear = {
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predicate: operatorPredicate,
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description: 'clear the chat history',
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f: (c, r) => {
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serverConnection.groupAction('clearchat');
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}
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};
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commands.lock = {
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predicate: operatorPredicate,
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description: 'lock this group',
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parameters: '[message]',
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f: (c, r) => {
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serverConnection.groupAction('lock', r);
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}
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};
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commands.unlock = {
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predicate: operatorPredicate,
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description: 'unlock this group, revert the effect of /lock',
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f: (c, r) => {
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serverConnection.groupAction('unlock');
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}
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};
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commands.record = {
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predicate: recordingPredicate,
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description: 'start recording',
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f: (c, r) => {
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serverConnection.groupAction('record');
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}
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};
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commands.unrecord = {
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predicate: recordingPredicate,
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description: 'stop recording',
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f: (c, r) => {
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serverConnection.groupAction('unrecord');
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}
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};
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/**
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* parseCommand splits a string into two space-separated parts. The first
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* part may be quoted and may include backslash escapes.
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@ -1532,6 +1670,86 @@ function parseCommand(line) {
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return [first, line.slice(i)];
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}
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/**
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* @param {string} user
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*/
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function findUserId(user) {
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if(user in users)
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return user;
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for(let id in users) {
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if(users[id] === user)
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return id;
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}
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return null;
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}
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commands.msg = {
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parameters: 'user message',
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description: 'send a private message',
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f: (c, r) => {
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let p = parseCommand(r);
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if(!p[0])
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throw new Error('/msg requires parameters');
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let id = findUserId(p[0]);
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if(!id)
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throw new Error(`Unknown user ${p[0]}`);
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let username = getUsername();
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serverConnection.chat(username, '', id, p[1]);
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addToChatbox(serverConnection.id, id, username, Date.now(), '', p[1]);
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}
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};
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/**
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@param {string} c
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@param {string} r
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*/
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function userCommand(c, r) {
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let p = parseCommand(r);
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if(!p[0])
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throw new Error(`/${c} requires parameters`);
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let id = findUserId(p[0]);
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if(!id)
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throw new Error(`Unknown user ${p[0]}`);
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serverConnection.userAction(c, id, p[1]);
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}
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commands.kick = {
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parameters: 'user [message]',
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description: 'kick out a user',
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predicate: operatorPredicate,
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f: userCommand,
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};
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commands.op = {
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parameters: 'user',
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description: 'give operator status',
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predicate: operatorPredicate,
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f: userCommand,
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};
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commands.unop = {
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parameters: 'user',
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description: 'revoke operator status',
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predicate: operatorPredicate,
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f: userCommand,
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};
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commands.present = {
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parameters: 'user',
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description: 'give user the right to present',
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predicate: operatorPredicate,
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f: userCommand,
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};
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commands.unpresent = {
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parameters: 'user',
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description: 'revoke the right to present',
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predicate: operatorPredicate,
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f: userCommand,
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};
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function handleInput() {
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let input = /** @type {HTMLTextAreaElement} */
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(document.getElementById('input'));
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@ -1545,111 +1763,40 @@ function handleInput() {
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if(data[0] === '/') {
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if(data.length > 1 && data[1] === '/') {
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message = data.substring(1);
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message = data.slice(1);
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me = false;
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} else {
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let cmd, rest;
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let space = data.indexOf(' ');
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if(space < 0) {
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cmd = data;
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cmd = data.slice(1);
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rest = '';
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} else {
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cmd = data.slice(0, space);
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cmd = data.slice(1, space);
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rest = data.slice(space + 1);
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}
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switch(cmd) {
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case '/me':
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if(cmd === 'me') {
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message = rest;
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me = true;
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break;
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case '/leave':
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serverConnection.close();
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return;
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case '/clear':
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if(!serverConnection.permissions.op) {
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displayError("You're not an operator");
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} else {
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let c = commands[cmd];
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if(!c) {
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displayError(`Uknown command /${cmd}, type /help for help`);
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return;
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}
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serverConnection.groupAction('clearchat');
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return;
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case '/set':
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if(!rest) {
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let settings = getSettings();
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let s = "";
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for(let key in settings)
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s = s + `${key}: ${JSON.stringify(settings[key])}\n`
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addToChatbox(null, null, null, Date.now(), null, s);
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return;
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}
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let parsed = parseCommand(rest);
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let value;
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if(parsed[1]) {
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try {
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value = JSON.parse(parsed[1])
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} catch(e) {
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displayError(e);
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if(c.predicate) {
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let s = c.predicate();
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if(s) {
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displayError(s);
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return;
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}
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} else {
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value = true;
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}
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updateSetting(parsed[0], value);
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reflectSettings();
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return;
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case '/unset':
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delSetting(rest.trim());
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return;
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case '/lock':
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case '/unlock':
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if(!serverConnection.permissions.op) {
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displayError("You're not an operator");
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return;
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try {
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c.f(cmd, rest);
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} catch(e) {
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displayError(e);
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}
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serverConnection.groupAction(cmd.slice(1), rest);
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return;
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case '/record':
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case '/unrecord':
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if(!serverConnection.permissions.record) {
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displayError("You're not allowed to record");
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return;
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}
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serverConnection.groupAction(cmd.slice(1));
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return;
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case '/msg':
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case '/op':
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case '/unop':
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case '/kick':
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case '/present':
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case '/unpresent': {
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let parsed = parseCommand(rest);
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let id;
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if(parsed[0] in users) {
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id = parsed[0];
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} else {
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for(let i in users) {
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if(users[i] === parsed[0]) {
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id = i;
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break;
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}
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}
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}
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if(!id) {
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displayError('Unknown user ' + parsed[0]);
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return;
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}
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if(cmd === '/msg') {
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let username = getUsername();
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serverConnection.chat(username, '', id, parsed[1]);
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addToChatbox(serverConnection.id,
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id, username, Date.now(), '', parsed[1]);
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} else {
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serverConnection.userAction(cmd.slice(1), id, parsed[1]);
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}
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return;
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}
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default:
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displayError('Uknown command ' + cmd);
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return;
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}
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}
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