-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathphase_one_server.go
143 lines (121 loc) · 4.14 KB
/
phase_one_server.go
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
139
140
141
142
143
package main
import (
"bufio"
"fmt"
"github.com/docopt/docopt-go"
"log"
"net/http"
"os"
"strings"
"time"
)
// App creates a mux and binds the root route for processing
// static files.
func startServing() http.Handler {
// Create a new mux for this service.
m := http.NewServeMux()
// m.Handle("/", http.FileServer(http.Dir("./static")))
m.HandleFunc("/", displayCollector)
m.HandleFunc("/reply", collectResponses)
return m
}
func displayCollector(w http.ResponseWriter, r *http.Request) {
indexHTML := `<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://cdn.rawgit.com/Chalarangelo/mini.css/v3.0.1/dist/mini-default.min.css">
</head>
<body>
<h2>Feedback Form</h2>
<p>Please provide up to three negative and three positive comments about the course. <br>
For example, you can mention only three negative but no positive things, two positive and one negative things, nothing at all, etc. <br>
</p>
<p>
In the beginning of tomorrow's session you will see all the comments from everybody else and you will be able to indicate to which of these you agree. <br>
That is, this evaluation form is not meant for sending private/personal feedback about the course.
</p>
<form action="/reply">
<h3>Negative Comments</h3>
<label for="fname">First negative:</label><br>
<input type="text" id="neg_a" name="neg_a" value="" size="100"><br>
<label for="fname">Second negative:</label><br>
<input type="text" id="neg_b" name="neg_b" value="" size="100"><br>
<label for="fname">Third negative:</label><br>
<input type="text" id="neg_c" name="neg_c" value="" size="100"><br>
<hr>
<h3>Positive Comments</h3>
<label for="fname">First positive:</label><br>
<input type="text" id="pos_a" name="pos_a" value="" size="100"><br>
<label for="fname">Second positive:</label><br>
<input type="text" id="pos_b" name="pos_b" value="" size="100"><br>
<label for="fname">Third positive:</label><br>
<input type="text" id="pos_c" name="pos_c" value="" size="100"><br>
<br>
<input type="submit" value="Submit">
</form>
</body>
</html>
`
fmt.Fprintf(w, indexHTML)
}
// Inspired by https://www.veracode.com/blog/2013/12/golangs-context-aware-html-templates
func collectResponses(w http.ResponseWriter, r *http.Request) {
if err := r.ParseForm(); err != nil {
http.Error(w, "Error parsing form values!", http.StatusInternalServerError)
return
}
// // get the form values
for key, value := range r.Form {
// TODO: Think about inserting an IP address based filter for already
// collected responses
commentStr := value[0]
commentStr = strings.Replace(commentStr, "\"", "\"\"", -1)
commentStr = fmt.Sprintf("\"%s\"", commentStr)
data := []string{r.RemoteAddr, key, commentStr}
appendTo("responses.txt", data)
}
thankYouHTML := `<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://cdn.rawgit.com/Chalarangelo/mini.css/v3.0.1/dist/mini-default.min.css">
</head>
<body>
<h1>Thank you for your feedback!</h1>
</body>
</html>
`
fmt.Fprintf(w, thankYouHTML)
}
func appendTo(file string, data []string) {
fileHandle, err := os.OpenFile(file, os.O_CREATE|os.O_RDWR|os.O_APPEND, 0666)
if err != nil {
log.Println(err)
}
writer := bufio.NewWriter(fileHandle)
defer fileHandle.Close()
timeStamp := time.Now().Format(time.RFC3339)
dataStr := strings.Join(data, ",")
csvLine := fmt.Sprintf("%s,%s", timeStamp, dataStr)
fmt.Fprintln(writer, csvLine)
writer.Flush()
}
func main() {
usage := `Delphi Evaluation Phase One Server.
Start me for example like:
$ ./phase_one_server --addr=0.0.0.0 --port=8888 >> log/phase_one.log 2>&1 &
Usage:
phase_one_server [--addr=<addr>] [--port=<port>]
phase_one_server -h | --help
phase_one_server --version
Options:
-h --help Show this screen.
--version Show version.
--addr=<addr> Address for serving [default: 127.0.0.1].
--port=<port> Port for serving [default: 8080].
`
arguments, _ := docopt.Parse(usage, nil, true, "Delphi Evaluation Phase One Server 1.0", false)
port := arguments["--port"].(string)
addr := arguments["--addr"].(string)
log.Print(fmt.Sprintf("Serving on http://%s:%s", addr, port))
log.Fatal(http.ListenAndServe(fmt.Sprintf("%s:%s", addr, port), startServing()))
}