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plugins fireHook refactor

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barisusakli
2014-11-08 17:12:38 -05:00
parent e93b2b6aa1
commit 3f12d363f7
1 changed files with 65 additions and 108 deletions
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173
src/plugins.js
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@@ -388,121 +388,78 @@ var fs = require('fs'),
return !!(Plugins.loadedHooks[hook] && Plugins.loadedHooks[hook].length > 0);
};
Plugins.fireHook = function(hook) {
var callback = typeof arguments[arguments.length-1] === 'function' ? arguments[arguments.length-1] : null,
args = arguments.length ? Array.prototype.slice.call(arguments, 1) : [];
if (callback) {
args.pop();
}
Plugins.fireHook = function(hook, params, callback) {
callback = typeof callback === 'function' ? callback : function() {};
var hookList = Plugins.loadedHooks[hook];
if (Array.isArray(hookList)) {
// if (global.env === 'development') winston.info('[plugins] Firing hook: \'' + hook + '\'');
var hookType = hook.split(':')[0];
switch (hookType) {
case 'filter':
async.reduce(hookList, args, function(value, hookObj, next) {
if (hookObj.method) {
if (!hookObj.hasOwnProperty('callbacked') || hookObj.callbacked === true) {
// omg, after 6 months I finally realised what this does...
// It adds the callback to the arguments passed-in, since the callback
// is defined in *this* file (the async cb), and not the hooks themselves.
value = hookObj.method.apply(Plugins, value.concat(function() {
next(arguments[0], Array.prototype.slice.call(arguments, 1));
}));
if (!Array.isArray(hookList) || !hookList.length) {
return callback(null, params);
}
/*
Backwards compatibility block for v0.5.0
Remove this once NodeBB enters v0.5.0-1
*/
if (value !== undefined && value !== callback) {
winston.warn('[plugins/' + hookObj.id + '] "callbacked" deprecated as of 0.4x. Use asynchronous method instead for hook: ' + hook);
next(null, [value]);
}
} else {
winston.warn('[plugins/' + hookObj.id + '] "callbacked" deprecated as of 0.4x. Use asynchronous method instead for hook: ' + hook);
value = hookObj.method.apply(Plugins, value);
next(null, [value]);
}
/* End backwards compatibility block */
} else {
if (global.env === 'development') {
winston.info('[plugins] Expected method for hook \'' + hook + '\' in plugin \'' + hookObj.id + '\' not found, skipping.');
}
next(null, [value]);
}
}, function(err, values) {
if (err) {
if (global.env === 'development') {
winston.info('[plugins] Problem executing hook: ' + hook + ' err: ' + JSON.stringify(err));
}
}
if (callback) {
callback.apply(Plugins, [err].concat(values));
}
});
break;
case 'action':
var deprecationWarn = [];
async.each(hookList, function(hookObj, next) {
/*
Backwards compatibility block for v0.5.0
Remove this once NodeBB enters v0.6.0-1
*/
if (hook === 'action:app.load') {
deprecationWarn.push(hookObj.id);
}
/* End backwards compatibility block */
if (hookObj.method) {
hookObj.method.apply(Plugins, args);
} else {
if (global.env === 'development') {
winston.info('[plugins] Expected method \'' + hookObj.method + '\' in plugin \'' + hookObj.id + '\' not found, skipping.');
}
}
next();
}, function() {
/*
Backwards compatibility block for v0.5.0
Remove this once NodeBB enters v0.6.0-1
*/
if (deprecationWarn.length) {
winston.warn('[plugins] The `action:app.load` hook is deprecated in favour of `static:app.load`, please notify the developers of the following plugins:');
for(var x=0,numDeprec=deprecationWarn.length;x<numDeprec;x++) {
process.stdout.write(' * ' + deprecationWarn[x] + '\n');
}
}
/* End backwards compatibility block */
});
break;
case 'static':
async.each(hookList, function(hookObj, next) {
if (hookObj.method) {
hookObj.method.apply(Plugins, args.concat(next));
}
}, function(err) {
callback(err);
});
break;
default:
// Do nothing...
break;
}
} else {
// Otherwise, this hook contains no methods
if (callback) {
callback.apply(this, [null].concat(args));
}
return args[0];
// if (global.env === 'development') winston.info('[plugins] Firing hook: \'' + hook + '\'');
var hookType = hook.split(':')[0];
switch (hookType) {
case 'filter':
fireFilterHook(hook, hookList, params, callback);
break;
case 'action':
fireActionHook(hook, hookList, params, callback);
break;
case 'static':
fireStaticHook(hook, hookList, params, callback);
break;
default:
winston.warn('[plugins] Unknown hookType: ' + hookType + ', hook : ' + hook);
break;
}
};
function fireFilterHook(hook, hookList, params, callback) {
async.reduce(hookList, params, function(params, hookObj, next) {
if (typeof hookObj.method !== 'function') {
if (global.env === 'development') {
winston.warn('[plugins] Expected method for hook \'' + hook + '\' in plugin \'' + hookObj.id + '\' not found, skipping.');
}
return next(null, params);
}
hookObj.method(params, next);
}, function(err, values) {
if (err) {
winston.error('[plugins] Problem executing hook: ' + hook + ' err: ' + err.stack);
}
callback(err, values);
});
}
function fireActionHook(hook, hookList, params, callback) {
async.each(hookList, function(hookObj, next) {
if (typeof hookObj.method !== 'function') {
if (global.env === 'development') {
winston.warn('[plugins] Expected method for hook \'' + hook + '\' in plugin \'' + hookObj.id + '\' not found, skipping.');
}
return next();
}
hookObj.method(params);
next();
}, callback);
}
function fireStaticHook(hook, hookList, params,callback) {
async.each(hookList, function(hookObj, next) {
if (typeof hookObj.method === 'function') {
hookObj.method(params, next);
} else {
next();
}
}, callback);
}
Plugins.isActive = function(id, callback) {
db.isSetMember('plugins:active', id, callback);
};