1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
package main
import (
"flag"
"fmt"
"html/template"
"io/ioutil"
"log"
"net/http"
"strconv"
"strings"
"github.com/gorilla/mux"
)
var (
port *int
)
func registerHTTPFlags() {
port = flag.Int("port", 8080, "The port for HTTP")
}
func setupHTTPServer() http.Server {
r := mux.NewRouter()
r.HandleFunc("/", indexHandler)
r.HandleFunc("/create", createGetHandler).Methods("GET")
r.HandleFunc("/create", createPostHandler).Methods("POST")
r.HandleFunc("/view", viewGetHandler).Methods("GET")
r.HandleFunc("/edit", editGetHandler).Methods("GET")
r.HandleFunc("/edit", editPostHandler).Methods("POST")
return http.Server{
Addr: fmt.Sprintf("0.0.0.0:%d", *port),
Handler: r,
}
}
// Host the index file
func indexHandler(w http.ResponseWriter, r *http.Request) {
readFileToResponse(w, "/index.html")
}
func createGetHandler(w http.ResponseWriter, r *http.Request) {
log.Println("create GET")
readFileToResponse(w, "/create.html")
}
// createPostHandler handles HTTP POST requests to the /create endpoint creating
// new challenges in the database
func createPostHandler(w http.ResponseWriter, r *http.Request) {
// parse the Post Request form
r.ParseForm()
points, err := strconv.ParseInt(r.Form.Get("challengePoints"), 10, 64)
if err != nil {
log.Println("Could not parse points: %v", err)
return
}
var static bool
if r.Form.Get("challengeStatic") == "on" {
static = true
} else if r.Form.Get("challengeStatic") == "off" {
static = false
} else {
log.Println("Could not parse static: %v", r.Form.Get("challengeStatic"))
return
}
// Define the new challenge
newChallenge := Challenge{
Name: r.Form.Get("challengeName"),
Description: r.Form.Get("challengeDescription"),
Flag: r.Form.Get("challengeFlag"),
Container: r.Form.Get("challengeContainer"),
Category: r.Form.Get("challengeCategory"),
Points: int(points),
Static: static,
}
// Create the new challenge in the database
err = dbNewChallenge(newChallenge)
if err != nil {
log.Println(err)
return
}
}
// viewGetHandler returns a list of all challenges in the database
func viewGetHandler(w http.ResponseWriter, r *http.Request) {
// get all challenges from the db
challs := getAllChallenges(db)
// define a challenges struct storing the challenges.
// This struct can be used in a template
challenges := Challenges{}
for _, chal := range challs {
challenges.Challenge = append(challenges.Challenge, chal)
}
// define a new template to render the challenges in
t := template.New("")
t, err := t.ParseFiles("./hosted/view.html")
if err != nil {
log.Println(err)
return
}
// execure the template using the challenges struct
t.ExecuteTemplate(w, "view", challenges)
}
func editGetHandler(w http.ResponseWriter, r *http.Request) {
log.Println("edit GET")
readFileToResponse(w, "/edit.html")
}
func editPostHandler(w http.ResponseWriter, r *http.Request) {
log.Println("edit POST")
}
// Helper function to host files off of "hosted/" directory
func readFileToResponse(w http.ResponseWriter, path string) {
requestedFile := strings.Replace(path, "..", "", -1)
contents, readError := ioutil.ReadFile(fmt.Sprintf("hosted/%s", requestedFile))
if readError != nil {
w.Write([]byte(fmt.Sprintf("unable to read %s", requestedFile)))
} else {
w.Write([]byte(contents))
}
}
|
