1package main
 2
 3import (
 4	"fmt"
 5	"html/template"
 6	"log"
 7	"net/http"
 8	"path"
 9	"strings"
10)
11
12var t *template.Template
13
14// TODO somewhat better error handling
15const InternalServerErrorMsg = "500: Internal Server Error"
16
17func renderError(w http.ResponseWriter, errorMsg string, statusCode int) { // TODO think about pointers
18	data := struct{ ErrorMsg string }{errorMsg}
19	err := t.ExecuteTemplate(w, "error.html", data)
20	if err != nil { // shouldn't happen probably
21		http.Error(w, errorMsg, statusCode)
22	}
23}
24
25func indexHandler(w http.ResponseWriter, r *http.Request) {
26	indexFiles, err := getIndexFiles()
27	if err != nil {
28		log.Println(err)
29		renderError(w, InternalServerErrorMsg, 500)
30		return
31	}
32	allUsers, err := getUsers()
33	if err != nil {
34		log.Println(err)
35		renderError(w, InternalServerErrorMsg, 500)
36		return
37	}
38	data := struct {
39		Domain    string
40		PageTitle string
41		Files     []*File
42		Users     []string
43	}{c.RootDomain, c.SiteTitle, indexFiles, allUsers}
44	err = t.ExecuteTemplate(w, "index.html", data)
45	if err != nil {
46		log.Println(err)
47		renderError(w, InternalServerErrorMsg, 500)
48		return
49	}
50
51}
52
53func editFileHandler(w http.ResponseWriter, r *http.Request) {
54	// get vs post
55	// read file content
56	authUser := "alex"
57	files, _ := getUserFiles(authUser)
58	for _, file := range files {
59		fmt.Fprintf(w, "%s\n", file.Name)
60	}
61}
62
63func mySiteHandler(w http.ResponseWriter, r *http.Request) {
64	authUser := "alex"
65	files, _ := getUserFiles(authUser)
66	for _, file := range files {
67		fmt.Fprintf(w, "%s\n", file.Name)
68	}
69}
70
71// Server a user's file
72func userFile(w http.ResponseWriter, r *http.Request) {
73	userName := strings.Split(r.Host, ".")[0]
74	fileName := path.Join(c.FilesDirectory, userName, r.URL.Path)
75	http.ServeFile(w, r, fileName)
76}
77
78func runHTTPServer() {
79	log.Println("Running http server")
80	var err error
81	t, err = template.ParseGlob("./templates/*.html") // TODO make template dir configruable
82	if err != nil {
83		log.Fatal(err)
84	}
85	http.HandleFunc(c.RootDomain+"/", indexHandler)
86	http.HandleFunc(c.RootDomain+"/my_site", mySiteHandler)
87	http.HandleFunc(c.RootDomain+"/edit/", editFileHandler)
88	// http.HandleFunc("/delete/", deleteFileHandler)
89	// login+register functions
90	http.HandleFunc("/", userFile)
91	log.Fatal(http.ListenAndServe(":8080", logRequest(http.DefaultServeMux)))
92}
93
94func logRequest(handler http.Handler) http.Handler {
95	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
96		log.Printf("%s %s %s\n", r.RemoteAddr, r.Method, r.URL)
97	})
98}