KaTeX/server.js
Martin von Gagern 79d53bd29f Use morgan to log requests in the dev server
This is motivated by the recent switch to Express 4.
Without this commit, “make serve” will print the following message:

Error: Most middleware (like logger) is no longer bundled
with Express and must be installed separately.  Please see
https://github.com/senchalabs/connect#middleware.
2017-01-12 09:52:29 +01:00

101 lines
2.9 KiB
JavaScript

/* eslint no-console:0 */
var fs = require("fs");
var path = require("path");
var browserify = require("browserify");
var express = require("express");
var glob = require("glob");
var less = require("less");
var app = express();
if (require.main === module) {
app.use(require("morgan")(
":date[iso] :method :url HTTP/:http-version - :status"));
}
var serveBrowserified = function(file, standaloneName) {
return function(req, res, next) {
var files;
if (Array.isArray(file)) {
files = file.map(function(f) { return path.join(__dirname, f); });
} else if (file.indexOf("*") !== -1) {
files = glob.sync(file, {cwd: __dirname});
} else {
files = [path.join(__dirname, file)];
}
var options = {};
if (standaloneName) {
options.standalone = standaloneName;
}
var b = browserify(files, options);
var stream = b.bundle();
var body = "";
stream.on("data", function(s) { body += s; });
stream.on("error", function(e) { next(e); });
stream.on("end", function() {
res.setHeader("Content-Type", "text/javascript");
res.send(body);
});
};
};
app.get("/katex.js", serveBrowserified("katex", "katex"));
app.use("/test/jasmine",
express["static"](
path.dirname(
require.resolve("jasmine-core/lib/jasmine-core/jasmine.js")
)
)
);
app.get("/test/katex-spec.js", serveBrowserified("test/*[Ss]pec.js"));
app.get("/contrib/auto-render/auto-render.js",
serveBrowserified("contrib/auto-render/auto-render",
"renderMathInElement"));
app.get("/katex.css", function(req, res, next) {
var lessfile = path.join(__dirname, "static", "katex.less");
fs.readFile(lessfile, {encoding: "utf8"}, function(err, data) {
if (err) {
next(err);
return;
}
less.render(data, {
paths: [path.join(__dirname, "static")],
filename: "katex.less",
}, function(err, output) {
if (err) {
console.error(String(err));
next(err);
return;
}
res.setHeader("Content-Type", "text/css");
res.send(output.css);
});
});
});
app.use(express["static"](path.join(__dirname, "static")));
app.use(express["static"](path.join(__dirname, "build")));
app.use("/test", express["static"](path.join(__dirname, "test")));
app.use("/contrib", express["static"](path.join(__dirname, "contrib")));
// app.use("/unicode-fonts",
// express["static"](path.join(__dirname, "static", "unicode-fonts")));
app.use(function(err, req, res, next) {
console.error(err.stack);
res.setHeader("Content-Type", "text/plain");
res.send(500, err.stack);
});
if (require.main === module) {
app.listen(7936);
console.log("Serving on http://0.0.0.0:7936/ ...");
}
module.exports = app;