node_modules ignore

server/node_modules/koa-favicon/index.js

@@ -0,0 +1,56 @@
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+const resolve = require('path').resolve;
+const fs = require('fs');
+
+/**
+ * Serve favicon.ico
+ *
+ * @param {String} path
+ * @param {Object} [options]
+ * @param {Number} [options.maxAge=null]
+ * @param {String} [options.mime="image/x-icon"] MIME type of the file at path
+ * @return {Function}
+ * @api public
+ */
+
+module.exports = function (path, options){
+  if (!path) {
+    return (ctx, next) => {
+      if ('/favicon.ico' != ctx.path) {
+        return next();
+      }
+    };
+  }
+
+  path = resolve(path);
+  options = options || {};
+
+  let icon;
+  const maxAge = options.maxAge == null
+    ? 86400000
+    : Math.min(Math.max(0, options.maxAge), 31556926000);
+  const cacheControl = `public, max-age=${maxAge / 1000 | 0}`;
+  const mime = options.mime || 'image/x-icon';
+
+  return (ctx, next) => {
+    if ('/favicon.ico' != ctx.path) {
+      return next();
+    }
+
+    if ('GET' !== ctx.method && 'HEAD' !== ctx.method) {
+      ctx.status = 'OPTIONS' == ctx.method ? 200 : 405;
+      ctx.set('Allow', 'GET, HEAD, OPTIONS');
+    } else {
+      // lazily read the icon
+      if (!icon) icon = fs.readFileSync(path);
+      ctx.set('Cache-Control', cacheControl);
+      ctx.type = mime;
+      ctx.body = icon;
+    }
+  };
+};