holyjak/http-server.bb

## http-server.bb
#!/usr/bin/env bb
#_" -*- mode: clojure; -*-"
;; Based on https://github.com/babashka/babashka/blob/master/examples/image_viewer.clj

(ns http-server
  (:require [babashka.fs :as fs]
            [clojure.java.browse :as browse]
            [clojure.string :as str]
            [clojure.tools.cli :refer [parse-opts]]
            [org.httpkit.server :as server]
            [hiccup2.core :as html])
  (:import [java.net URLDecoder URLEncoder]))

(def cli-options [["-p" "--port PORT" "Port for HTTP server" :default 8090 :parse-fn #(Integer/parseInt %)]
                  ["-d" "--dir DIR" "Directory to serve files from" :default "."]
                  ["-h" "--help" "Print usage info"]])
(def parsed-args (parse-opts *command-line-args* cli-options))
(def opts (:options parsed-args))

(cond
  (:help opts)
  (do (println "Start a http server for static files in the given dir. Usage:\n" (:summary parsed-args))
      (System/exit 0))

  (:errors parsed-args)
  (do (println "Invalid arguments:\n" (str/join "\n" (:errors parsed-args)))
      (System/exit 1))

  :else
  :continue)


(def port (:port opts))
(def dir (fs/path (:dir opts)))

(assert (fs/directory? dir) (str "The given dir `" dir "` is not a directory."))

(defn index [f]
  (let [files (map #(str (.relativize dir %))
                   (fs/list-dir f))]
    {:body (-> [:html
                [:head
                 [:meta {:charset "UTF-8"}]
                 [:title (str "Index of `" f "`")]]
                [:body
                 [:h1 "Index of " [:code (str f)]]
                 [:ul
                  (for [child files]
                    [:li [:a {:href (URLEncoder/encode (str child))} child (when (fs/directory? (fs/path dir child)) "/")]])]
                 [:hr]
                 [:footer {:style {"text-align" "center"}} "Served by http-server.clj"]]]
               html/html
               str)}))

(defn body [path]
  {:body (fs/file path)})

(server/run-server
 (fn [{:keys [:uri]}]
   (let [f (fs/path dir (str/replace-first (URLDecoder/decode uri) #"^/" ""))
         index-file (fs/path f "index.html")]
     (cond
       (and (fs/directory? f) (fs/readable? index-file))
       (body index-file)

       (fs/directory? f)
       (index f)

       (fs/readable? f)
       (body f)

       :else
       {:status 404 :body (str "Not found `" f "` in " dir)})))
 {:port port})

(println "Starting http server at " port "for" (str dir))
(browse/browse-url (format "http://localhost:%s/" port))

@(promise)
	#!/usr/bin/env bb
	#_" -- mode: clojure; --"
	;; Based on https://github.com/babashka/babashka/blob/master/examples/image_viewer.clj

	(ns http-server
	(:require [babashka.fs :as fs]
	[clojure.java.browse :as browse]
	[clojure.string :as str]
	[clojure.tools.cli :refer [parse-opts]]
	[org.httpkit.server :as server]
	[hiccup2.core :as html])
	(:import [java.net URLDecoder URLEncoder]))

	(def cli-options [["-p" "--port PORT" "Port for HTTP server" :default 8090 :parse-fn #(Integer/parseInt %)]
	["-d" "--dir DIR" "Directory to serve files from" :default "."]
	["-h" "--help" "Print usage info"]])
	(def parsed-args (parse-opts command-line-args cli-options))
	(def opts (:options parsed-args))

	(cond
	(:help opts)
	(do (println "Start a http server for static files in the given dir. Usage:\n" (:summary parsed-args))
	(System/exit 0))

	(:errors parsed-args)
	(do (println "Invalid arguments:\n" (str/join "\n" (:errors parsed-args)))
	(System/exit 1))

	:else
	:continue)


	(def port (:port opts))
	(def dir (fs/path (:dir opts)))

	(assert (fs/directory? dir) (str "The given dir `" dir "` is not a directory."))

	(defn index [f]
	(let [files (map #(str (.relativize dir %))
	(fs/list-dir f))]
	{:body (-> [:html
	[:head
	[:meta {:charset "UTF-8"}]
	[:title (str "Index of `" f "`")]]
	[:body
	[:h1 "Index of " [:code (str f)]]
	[:ul
	(for [child files]
	[:li [:a {:href (URLEncoder/encode (str child))} child (when (fs/directory? (fs/path dir child)) "/")]])]
	[:hr]
	[:footer {:style {"text-align" "center"}} "Served by http-server.clj"]]]
	html/html
	str)}))

	(defn body [path]
	{:body (fs/file path)})

	(server/run-server
	(fn [{:keys [:uri]}]
	(let [f (fs/path dir (str/replace-first (URLDecoder/decode uri) #"^/" ""))
	index-file (fs/path f "index.html")]
	(cond
	(and (fs/directory? f) (fs/readable? index-file))
	(body index-file)

	(fs/directory? f)
	(index f)

	(fs/readable? f)
	(body f)

	:else
	{:status 404 :body (str "Not found `" f "` in " dir)})))
	{:port port})

	(println "Starting http server at " port "for" (str dir))
	(browse/browse-url (format "http://localhost:%s/" port))

	@(promise)