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148 lines
4.0 KiB
148 lines
4.0 KiB
/*
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* Copyright (c) 2011 RedHog (Egil Möller) <egil.moller@freecode.no>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS-IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* Basic usage:
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*
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* require("./index").require("./examples/foo.ejs")
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*/
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const ejs = require('ejs');
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const fs = require('fs');
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const path = require('path');
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const hooks = require('ep_etherpad-lite/static/js/pluginfw/hooks.js');
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const resolve = require('resolve');
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const settings = require('../utils/Settings');
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const templateCache = new Map();
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exports.info = {
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__output_stack: [],
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block_stack: [],
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file_stack: [],
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args: [],
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};
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function getCurrentFile() {
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return exports.info.file_stack[exports.info.file_stack.length - 1];
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}
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function createBlockId(name) {
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return `${getCurrentFile().path}|${name}`;
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}
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exports._init = function (b, recursive) {
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exports.info.__output_stack.push(exports.info.__output);
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exports.info.__output = b;
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};
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exports._exit = function (b, recursive) {
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getCurrentFile().inherit.forEach((item) => {
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exports._require(item.name, item.args);
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});
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exports.info.__output = exports.info.__output_stack.pop();
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};
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exports.begin_capture = function () {
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exports.info.__output_stack.push(exports.info.__output.concat());
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exports.info.__output.splice(0, exports.info.__output.length);
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};
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exports.end_capture = function () {
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const res = exports.info.__output.join('');
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exports.info.__output.splice.apply(
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exports.info.__output,
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[0, exports.info.__output.length].concat(exports.info.__output_stack.pop()));
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return res;
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};
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exports.begin_define_block = function (name) {
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exports.info.block_stack.push(name);
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exports.begin_capture();
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};
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exports.end_define_block = function () {
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const content = exports.end_capture();
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return content;
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};
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exports.end_block = function () {
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const name = exports.info.block_stack.pop();
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const renderContext = exports.info.args[exports.info.args.length - 1];
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const args = {content: exports.end_define_block(), renderContext};
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hooks.callAll(`eejsBlock_${name}`, args);
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exports.info.__output.push(args.content);
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};
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exports.begin_block = exports.begin_define_block;
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exports.inherit = function (name, args) {
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getCurrentFile().inherit.push({name, args});
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};
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exports.require = function (name, args, mod) {
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if (args == undefined) args = {};
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let basedir = __dirname;
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let paths = [];
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if (exports.info.file_stack.length) {
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basedir = path.dirname(getCurrentFile().path);
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}
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if (mod) {
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basedir = path.dirname(mod.filename);
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paths = mod.paths;
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}
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const ejspath = resolve.sync(
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name,
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{
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paths,
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basedir,
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extensions: ['.html', '.ejs'],
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}
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);
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args.e = exports;
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args.require = require;
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let template;
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if (settings.maxAge !== 0) { // don't cache if maxAge is 0
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if (!templateCache.has(ejspath)) {
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template = `<% e._init(__output); %>${fs.readFileSync(ejspath).toString()}<% e._exit(); %>`;
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templateCache.set(ejspath, template);
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} else {
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template = templateCache.get(ejspath);
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}
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} else {
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template = `<% e._init(__output); %>${fs.readFileSync(ejspath).toString()}<% e._exit(); %>`;
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}
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exports.info.args.push(args);
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exports.info.file_stack.push({path: ejspath, inherit: []});
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if (settings.maxAge !== 0) {
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var res = ejs.render(template, args, {cache: true, filename: ejspath});
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} else {
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var res = ejs.render(template, args, {cache: false, filename: ejspath});
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}
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exports.info.file_stack.pop();
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exports.info.args.pop();
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return res;
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};
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exports._require = function (name, args) {
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exports.info.__output.push(exports.require(name, args));
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};
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