76 |
133 |
134 |
146 |
147 |
153 |
189 |
190 |
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/screenshots/example1.png:
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https://raw.githubusercontent.com/xrlin/AsciiArt/0a07a60090f5fcfb8134b8df2161edf8f0cf3720/screenshots/example1.png
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/screenshots/example2.png:
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https://raw.githubusercontent.com/xrlin/AsciiArt/0a07a60090f5fcfb8134b8df2161edf8f0cf3720/screenshots/example2.png
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/screenshots/example3.png:
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https://raw.githubusercontent.com/xrlin/AsciiArt/0a07a60090f5fcfb8134b8df2161edf8f0cf3720/screenshots/example3.png
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/screenshots/example4.png:
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https://raw.githubusercontent.com/xrlin/AsciiArt/0a07a60090f5fcfb8134b8df2161edf8f0cf3720/screenshots/example4.png
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/screenshots/web-ui.png:
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https://raw.githubusercontent.com/xrlin/AsciiArt/0a07a60090f5fcfb8134b8df2161edf8f0cf3720/screenshots/web-ui.png
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/server.go:
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1 | package main
2 |
3 | import (
4 | "bytes"
5 | "encoding/base64"
6 | "encoding/json"
7 | "fmt"
8 | "image"
9 | "image/png"
10 | "io"
11 | "net/http"
12 | "strconv"
13 | "strings"
14 | )
15 |
16 | func index(w http.ResponseWriter, r *http.Request) {
17 | data, _ := Asset("index.html")
18 | w.Write(data)
19 | }
20 |
21 | type config struct {
22 | ImageLink string `json:"image_link"`
23 | }
24 |
25 | type serverError struct {
26 | Error string `json:"error"`
27 | }
28 |
29 | type responseData struct {
30 | Ascii string `json:"ascii"`
31 | Image string `json:"image"`
32 | }
33 |
34 | func ascii(w http.ResponseWriter, r *http.Request) {
35 | defer func() {
36 | err := recover()
37 | if err != nil {
38 | errorMessage, _ := json.Marshal(serverError{Error: err.(error).Error()})
39 | w.WriteHeader(http.StatusBadRequest)
40 | w.Write(errorMessage)
41 | }
42 | }()
43 | r.ParseMultipartForm(0)
44 | image_link := r.FormValue("image_link")
45 |
46 | imageFile, _, err := r.FormFile("image_file")
47 | defer func() {
48 | if imageFile != nil {
49 | imageFile.Close()
50 | }
51 | }()
52 |
53 | characters := strings.Split(r.FormValue("characters"), "")
54 | subWidth, err := strconv.Atoi(r.FormValue("sub_width"))
55 | if err != nil {
56 | panic(err)
57 | }
58 | subHeight, err := strconv.Atoi(r.FormValue("sub_height"))
59 | if err != nil {
60 | panic(err)
61 | }
62 | bgColor := r.FormValue("bg")
63 | penColor := r.FormValue("pen")
64 | var imgData io.ReadCloser
65 | if err == nil && imageFile != nil {
66 | imgData = io.ReadCloser(imageFile)
67 | } else {
68 | var respImgData *http.Response
69 | fmt.Println(image_link)
70 | respImgData, err = http.Get(image_link)
71 | if err != nil {
72 | panic(err)
73 | }
74 | imgData = respImgData.Body
75 | }
76 | if err != nil {
77 | panic(err)
78 | }
79 | result, img, err := convert(imgData, characters, subWidth, subHeight, true, colors[bgColor], colors[penColor])
80 | if err != nil {
81 | errorMessage, _ := json.Marshal(serverError{Error: err.Error()})
82 | w.WriteHeader(http.StatusBadRequest)
83 | w.Write(errorMessage)
84 | return
85 | }
86 | imgBase64, err := imageToBase64(img)
87 | if err != nil {
88 | panic(err)
89 | }
90 | resp, _ := json.Marshal(responseData{Ascii: result, Image: imgBase64})
91 | w.Write(resp)
92 | }
93 |
94 | func imageToBase64(img *image.NRGBA) (string, error) {
95 | buffer := bytes.NewBuffer(nil)
96 | err := png.Encode(buffer, img)
97 | if err != nil {
98 | return "", err
99 | }
100 | result := base64.StdEncoding.EncodeToString(buffer.Bytes())
101 | result = "data:image/png;base64, " + result
102 | return result, nil
103 | }
104 |
105 | func startServer(addr string) {
106 | http.HandleFunc("/", index)
107 | http.HandleFunc("/ascii", ascii)
108 | http.ListenAndServe(addr, nil)
109 | }
110 |
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