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
|
textXform = {
"a": "\u{10900}",
"b": "\u{10901}",
"c": "\u{10902}",
"d": "\u{10903}",
"e": "\u{10904}",
"f": "\u{10905}",
"g": "\u{10906}",
"h": "\u{10907}",
"i": "\u{10908}",
"j": "\u{10909}",
"k": "\u{1090A}",
"l": "\u{1090B}",
"m": "\u{1090C}",
"n": "\u{1090D}",
"o": "\u{1090E}",
"p": "\u{1090F}",
"q": "\u{10910}",
"r": "\u{10911}",
"s": "\u{10912}",
"t": "\u{10913}",
"u": "\u{10914}",
"v": "\u{10915}",
".": "\u{1091F}",
}
class DroseraCaptcha extends HTMLElement {
constructor() {
super();
}
onSquareClick(event) {
const square = event.target;
if (square.dataset.active === undefined) {
square.dataset.active = "1";
} else if (square.dataset.active == "1") {
square.dataset.active = "2";
} else if (square.dataset.active == "2") {
square.dataset.active = "3";
} else {
delete square.dataset.active;
}
event.preventDefault();
}
onSquareReset(event) {
const square = event.target;
delete square.dataset.active;
event.preventDefault();
}
onSquareContext(event) {
event.preventDefault();
}
onResetCaptcha(event) {
const grid = event.target.parentNode.getElementsByClassName("dsc-inner")[0];
for (const child of grid.childNodes) {
if (!child.disabled) {
delete child.dataset.active;
}
}
}
onSubmitCaptcha(event) {
const grid = event.target.parentNode.getElementsByClassName("dsc-inner")[0];
const output = grid.childNodes.values().map(square => square.dataset.active ?? "0").join("");
const params = new URLSearchParams({
size: this.size,
label: this.label,
lock: this.lock,
answer: output
})
console.log("/captcha?" + params.toString())
const request = new Request("/captcha?" + params.toString());
this.outer.disabled = true;
window.fetch(request).then(response => {
if (response.ok) {
this.outer.dataset.solved = "";
if (this.reload) {
location.reload();
}
} else {
this.outer.disabled = false;
}
})
}
connectedCallback() {
const shadow = this.attachShadow({ mode: "open" });
const linkElem = document.createElement("link");
linkElem.setAttribute("rel", "stylesheet");
linkElem.setAttribute("href", "/static/style/captcha.css");
shadow.appendChild(linkElem);
const outer = document.createElement("fieldset");
outer.className = "dsc-outer";
if (this.dataset.solved !== undefined) {
outer.dataset.solved = "";
}
this.reload = this.dataset.reload !== undefined;
const resetBtn = document.createElement("button");
resetBtn.innerText = "Reset"
resetBtn.addEventListener("click", this.onResetCaptcha);
const submitBtn = document.createElement("button");
submitBtn.className = "dsc-submit";
submitBtn.innerText = "Submit"
submitBtn.addEventListener("click", this.onSubmitCaptcha.bind(this));
const inner = document.createElement("div");
inner.style.gridTemplateColumns = `repeat(${this.dataset.size}, 1fr)`
inner.className = "dsc-inner";
for (var alp = 0; alp < this.dataset.size; alp++) {
for (var bet = 0; bet < this.dataset.size; bet++) {
const square = document.createElement("button");
square.tabIndex = 0;
square.addEventListener("click", this.onSquareClick);
square.addEventListener("auxclick", this.onSquareReset);
square.addEventListener("contextmenu", this.onSquareContext);
const label = document.createElement("span");
const shift = alp * this.dataset.size + bet;
label.innerText = textXform[this.dataset.label.at(shift)];
const lock = this.dataset.lock.at(shift);
if (lock != ".") {
square.dataset.active = lock;
square.disabled = true;
}
square.appendChild(label);
inner.appendChild(square);
}
}
this.size = this.dataset.size;
this.label = this.dataset.label;
this.lock = this.dataset.lock;
this.outer = outer;
this.inner = inner;
outer.appendChild(resetBtn);
outer.appendChild(inner);
outer.appendChild(submitBtn);
shadow.appendChild(outer);
}
}
customElements.define("drosera-captcha", DroseraCaptcha);
|
