strapi/packages/plugins/documentation/server/middlewares/documentation.js

'use strict';

const path = require('path');
const _ = require('lodash');
const koaStatic = require('koa-static');

const initialRoutes = [];

// TODO: delete when refactoring documentation plugin for v4
module.exports = {
  defaults: { documentation: { enabled: true } },
  load: {
    beforeInitialize() {
      strapi.config.middleware.load.before.push('documentation');

      initialRoutes.push(..._.cloneDeep(strapi.plugins.documentation.routes));
    },

    initialize() {
      const swaggerUi = require('swagger-ui-dist');

      // Find the plugins routes.
      strapi.plugins.documentation.routes = strapi.plugins.documentation.routes.map(
        (route, index) => {
          if (route.handler === 'Documentation.getInfos') {
            return route;
          }

          if (route.handler === 'Documentation.index' || route.path === '/login') {
            route.config.policies = initialRoutes[index].config.policies;
          }

          // Set prefix to empty to be able to customise it.
          if (strapi.config.has('plugins.documentation.x-strapi-config.path')) {
            route.config.prefix = '';
            route.path = `/${strapi.config.get('plugin.documentation.x-strapi-config').path}${
              route.path
            }`.replace('//', '/');
          }

          return route;
        }
      );

      strapi.server.routes([
        {
          method: 'GET',
          path: '/plugins/documentation/(.*)',
          async handler(ctx, next) {
            ctx.url = path.basename(ctx.url);

            return koaStatic(swaggerUi.getAbsoluteFSPath(), {
              maxage: strapi.config.middleware.settings.public.maxAge,
              defer: true,
            })(ctx, next);
          },
        },
      ]);
    },
  },
};