Hook up express to mediawiki.

Author: cscott

CHANGELOG.md

@@ -0,0 +1,3 @@
+# mediawiki-express x.x.x (not yet released)
+* Mediawiki version 1.26 (REL1_26 branch)
+* First working version.

bin/mediawiki

@@ -0,0 +1,14 @@
+#!/usr/bin/env node
+var server = require('../');
+
+var argv = require('yargs')
+    .usage('Usage: $0 -p [port]')
+    .demand('p')
+    .alias('p', 'port')
+    .nargs('p', 1)
+    .describe('p', 'Server port')
+    .help('h')
+    .alias('h', 'help')
+    .argv;
+
+server.makeServer(+argv.port);

lib/index.js

@@ -1 +1,62 @@
 // Main entry point.
+var express = require('express');
+var path = require('path');
+var php = require('php-embed');
+
+var IP = path.join(__dirname, '..', 'ip');
+process.env.MW_INSTALL_PATH = IP;
+process.env.PATH =
+  '/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin';
+
+var makeServer = function(port) {
+  var app = express();
+  app.get('/', function(req, res) {
+    res.redirect('/wiki/');
+  });
+  var handlePhp = function(phpfile, pathinfo, req, res) {
+    php.request({
+      file: path.join(IP, phpfile + '.php'),
+      request: req,
+      stream: res,
+      serverInitFunc: function(server) {
+        server.SERVER_NAME = 'localhost'; // XXX
+        server.SCRIPT_NAME = '/w/' + phpfile + '.php';
+        server.PHP_SELF = server.REQUEST_URI;
+        server.PATH_INFO = '/' + pathinfo;
+        // According to PHP's cgi_main.c:
+        // PATH_TRANSLATED = DOCUMENT_ROOT + PATH_INFO
+        server.DOCUMENT_ROOT = '/var/www'; // Lie
+        server.PATH_TRANSLATED = server.DOCUMENT_ROOT + '/' + pathinfo;
+        // Console.log("PHP request:", server.SCRIPT_NAME, server.QUERY_STRING);
+      },
+      context: {
+        mwHook: function(globals) {
+          // XXX We can't actually set any globals, because
+          // node-php-embed doesn't yet wrap PHP arrays.
+        },
+      },
+    }).catch(function(e) {
+      console.error('PHP error:', e);
+    }).then(function() {
+      res.end();
+    });
+  };
+  app.all('/wiki/?*', function(req, res) {
+    handlePhp('index', req.params[0], req, res);
+  });
+  app.all('/w/:file.php/?*', function(req, res) {
+    handlePhp(req.params.file, req.params[0], req, res);
+  });
+  app.get('/wiki/?*', function(req, res) {
+    res.send('Hello, world!');
+  });
+  app.use('/w', express.static(IP));
+  var server = app.listen(port, function() {
+    var host = server.address().address;
+    var port = server.address().port;
+    console.log('Listening at http://%s:%s', host, port);
+  });
+  return server;
+};
+
+module.exports.makeServer = makeServer;

package.json

@@ -3,6 +3,9 @@
   "version": "1.26.0",
   "description": "An installation of mediawiki invoked from node.js/express.",
   "main": "lib/index.js",
+  "bin": {
+    "mediawiki": "./bin/mediawiki"
+  },
   "scripts": {
     "jscs-fix": "jscs --fix .",
     "lint": "jshint . && jscs .",
@@ -29,9 +32,10 @@
     "cpr": "^0.4.3",
     "express": "^4.13.3",
     "password-generator": "^2.0.2",
-    "php-embed": "^0.0.3",
+    "php-embed": "^0.5.0",
     "pn": "^1.0.0",
-    "prfun": "^2.1.1"
+    "prfun": "^2.1.1",
+    "yargs": "^3.29.0"
   },
   "devDependencies": {
     "jscs": "^2.4.0",

scripts/postinstall.js

@@ -34,10 +34,15 @@ Promise.resolve().then(function() {
 }).then(function() {
   if (SKIP_COPY) { return; }
   console.log('Creating symlinks...');
+  var ASSETS = path.join(IP, 'resources', 'assets');
   return Promise.join(
 	fs.symlink('../vendor', path.join(IP, 'vendor'), 'dir'),
 	fs.symlink('../skins', path.join(IP, 'skins'), 'dir'),
-    fs.mkdir(path.join(IP, 'data'))
+    fs.mkdir(path.join(IP, 'data')),
+    // Poor man's copy:
+    fs.readFile(path.join(ASSETS, 'mediawiki.png')).then(function(data) {
+      return fs.writeFile(path.join(ASSETS, 'wiki.png'), data);
+    })
   );
 }).then(function() {
   console.log('Running PHP installer...');
@@ -61,10 +66,19 @@ Promise.resolve().then(function() {
   console.log('Adding hook to LocalSettings.php');
   return fs.appendFile(path.join(IP, 'LocalSettings.php'), [
     '',
-    '// Hook for additional configuration by ' + packageJson.name,
+    '# https://www.mediawiki.org/wiki/Manual:Short_URL',
+    '$wgScriptPath = "/w";',
+    '$wgArticlePath = "/wiki/$1";',
+    '$wgUsePathInfo = true;',
+    '# Default logo',
+    '$wgLogo = "$wgScriptPath/resources/assets/wiki.png";',
+    '# Hook for additional configuration by ' + packageJson.name,
     'if (isset($_SERVER["CONTEXT"]) && isset($_SERVER["CONTEXT"]->mwHook)) {',
     '  $_SERVER["CONTEXT"]->mwHook($GLOBALS);',
     '}',
+    // For debugging, the following might be useful:
+    // '$wgDebugLogFile = "/tmp/mediawiki.log";',
+    // 'wfDebugLog("error", "This will show up in the log.");',
     '',].join('\n'), 'utf8');
 }).then(function() {
   console.log('Done!');