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HoangTran0410HoangTran0410
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WIP ajax hook
1 parent 925b4b4 commit 23dccfd

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+110
-83
lines changed

3 files changed

+110
-83
lines changed

‎scripts/fb_blockSeenStory.js

Lines changed: 41 additions & 30 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,6 @@
11
import { UfsGlobal } from "./content-scripts/ufs_global.js";
22
import { BADGES } from "./helpers/badge.js";
3+
import { CANCEL_XHR, hookXHR } from "./libs/ajax-hook/index.js";
34

45
export default {
56
icon: '<i class="fa-solid fa-user-ninja fa-lg"></i>',
@@ -20,38 +21,48 @@ export default {
2021

2122
pageScript: {
2223
onDocumentStart_: async (details) => {
23-
const e = window.XMLHttpRequest;
24-
window.XMLHttpRequest = new Proxy(e, {
25-
construct(o, r) {
26-
const instance = new o(...r),
27-
open = instance.open;
28-
instance.open = function (method, url, m, y, f) {
29-
return (
30-
(this._method = method),
31-
(this._url = url),
32-
open.apply(this, arguments)
33-
);
34-
};
35-
const send = instance.send;
36-
return (
37-
(instance.send = function (data) {
38-
if (
39-
!(
40-
this._method === "POST" &&
41-
data?.toString().includes("storiesUpdateSeenStateMutation")
42-
)
43-
)
44-
return send.apply(this, arguments);
45-
else {
46-
UfsGlobal.DOM.notify({
47-
msg: "Useful script: facebook story seen BLOCKED",
48-
});
49-
}
50-
}),
51-
instance
52-
);
24+
hookXHR({
25+
onBeforeSend: ({ method, url, async, user, password }, dataSend) => {
26+
if (
27+
method === "POST" &&
28+
dataSend?.toString?.includes("storiesUpdateSeenStateMutation")
29+
) {
30+
return CANCEL_XHR;
31+
}
5332
},
5433
});
34+
// const e = window.XMLHttpRequest;
35+
// window.XMLHttpRequest = new Proxy(e, {
36+
// construct(o, r) {
37+
// const instance = new o(...r),
38+
// open = instance.open;
39+
// instance.open = function (method, url, m, y, f) {
40+
// return (
41+
// (this._method = method),
42+
// (this._url = url),
43+
// open.apply(this, arguments)
44+
// );
45+
// };
46+
// const send = instance.send;
47+
// return (
48+
// (instance.send = function (data) {
49+
// if (
50+
// !(
51+
// this._method === "POST" &&
52+
// data?.toString().includes("storiesUpdateSeenStateMutation")
53+
// )
54+
// )
55+
// return send.apply(this, arguments);
56+
// else {
57+
// UfsGlobal.DOM.notify({
58+
// msg: "Useful script: facebook story seen BLOCKED",
59+
// });
60+
// }
61+
// }),
62+
// instance
63+
// );
64+
// },
65+
// });
5566
},
5667
},
5768
};

‎scripts/libs/ajax-hook/index.js

Lines changed: 67 additions & 53 deletions
Original file line numberDiff line numberDiff line change
@@ -1,20 +1,18 @@
11
export const cancelKey = "_ufs_cancel_";
22

3-
function hook({ onBefore, onAfter, onBeforeArr, onAfterArr } = {}) {
4-
const beforeId = randId();
5-
const afterId = randId();
6-
7-
if (typeof onBefore === "function")
8-
onBeforeArr.push({ fn: onBefore, id: beforeId });
9-
if (typeof onAfter === "function")
10-
onAfterArr.push({ fn: onAfter, id: afterId });
3+
function _hook(configs = []) {
4+
const unsubFn = [];
5+
for (let { fn, arr } of configs) {
6+
let id = randId();
7+
arr.push({ fn, id });
8+
unsubFn.push(() => {
9+
let index = arr.findIndex((e) => e.id === id);
10+
if (index !== -1) arr.splice(index, 1);
11+
});
12+
}
1113

1214
return () => {
13-
let beforeIndex = onBeforeArr.findIndex((e) => e.id === beforeId);
14-
let afterIndex = onAfterArr.findIndex((e) => e.id === afterId);
15-
16-
if (beforeIndex !== -1) onBeforeArr.splice(beforeIndex, 1);
17-
if (afterIndex !== -1) onAfterArr.splice(afterIndex, 1);
15+
unsubFn.forEach((fn) => fn?.());
1816
};
1917
}
2018

@@ -35,12 +33,12 @@ function initFetch() {
3533
window.fetch = async function (url, options) {
3634
let request = { url, options };
3735
for (let { fn } of onBeforeFetchFn)
38-
request = fn(request.url, request.options) || request;
36+
request = fn?.(request.url, request.options) || request;
3937
if (request?.options?.[cancelKey]) return null;
4038

4139
let response = await originalFetch(...request);
4240
for (let { fn } of onAfterFetchFn)
43-
response = fn(request.url, request.options, response) || response;
41+
response = fn?.(request.url, request.options, response) || response;
4442

4543
return response;
4644
};
@@ -51,12 +49,10 @@ export function hookFetch({ onBefore, onAfter } = {}) {
5149
initFetch();
5250
readyFetch = true;
5351
}
54-
return hook({
55-
onBefore,
56-
onAfter,
57-
onBeforeArr: onBeforeFetchFn,
58-
onAfterArr: onAfterFetchFn,
59-
});
52+
return _hook([
53+
{ fn: onBefore, arr: onBeforeFetchFn },
54+
{ fn: onAfter, arr: onAfterFetchFn },
55+
]);
6056
}
6157

6258
/* hookFetch example
@@ -67,61 +63,79 @@ hookFetch({
6763
},
6864
onAfter: (url, options, response) => {
6965
console.log(url, options, response);
70-
return res;
66+
reponse = null; // modify response
67+
return response;
7168
},
7269
});
7370
*/
7471

7572
// =========== XHR ============
76-
const onBeforeXHRFn = [];
77-
const onAfterXHRFn = [];
73+
const onBeforeOpenXHRFn = [];
74+
const onBeforeSendXHRFn = [];
75+
const onAfterSendXHRFn = [];
7876
let readyXhr = false;
7977

8078
export const CANCEL_XHR = {
8179
[cancelKey]: true,
8280
};
8381

8482
function initXhr() {
85-
let oldXHROpen = window.XMLHttpRequest.prototype.open;
86-
window.XMLHttpRequest.prototype.open = function (
87-
method,
88-
url,
89-
async,
90-
user,
91-
password
92-
) {
93-
let params = { method, url, async, user, password };
94-
for (let { fn } of onBeforeXHRFn) params = fn(params) || params;
95-
if (params?.[cancelKey]) return;
96-
97-
this.addEventListener("load", function () {
98-
for (let { fn } of onAfterXHRFn) fn(params, this.responseText);
99-
});
100-
101-
return oldXHROpen.apply(this, Object.values(params));
102-
};
83+
const orig = window.XMLHttpRequest;
84+
window.XMLHttpRequest = new Proxy(orig, {
85+
construct(o, r) {
86+
const instance = new o(...r);
87+
88+
let p;
89+
90+
const open = instance.open;
91+
instance.open = function (method, url, async, user, password) {
92+
this._method = method;
93+
this._url = url;
94+
95+
p = { method, url, async, user, password };
96+
for (let { fn } of onBeforeOpenXHRFn) p = fn?.(p) || p;
97+
if (p?.[cancelKey]) return;
98+
99+
return open.apply(this, [p.mr]);
100+
};
101+
102+
const send = instance.send;
103+
instance.send = function (data) {
104+
for (let { fn } of onBeforeSendXHRFn) data = fn?.(p, data) || data;
105+
if (data?.[cancelKey]) return;
106+
107+
instance.addEventListener("load", function () {
108+
for (let { fn } of onAfterSendXHRFn)
109+
fn?.(p, data, instance.responseText);
110+
});
111+
112+
return send.apply(this, arguments);
113+
};
114+
return instance;
115+
},
116+
});
103117
}
104118

105-
export function hookXHR({ onBefore, onAfter } = {}) {
119+
export function hookXHR({ onBeforeOpen, onBeforeSend, onAfterSend } = {}) {
106120
if (!readyXhr) {
107121
initXhr();
108-
readyFetch = true;
122+
readyXhr = true;
109123
}
110-
return hook({
111-
onBefore,
112-
onAfter,
113-
onBeforeArr: onBeforeXHRFn,
114-
onAfterArr: onAfterXHRFn,
115-
});
124+
return _hook([
125+
{ fn: onBeforeOpen, arr: onBeforeOpenXHRFn },
126+
{ fn: onBeforeSend, arr: onBeforeSendXHRFn },
127+
{ fn: onAfterSend, arr: onAfterSendXHRFn },
128+
]);
116129
}
117130

118131
/* hookXHR example
119132
hookXHR({
120-
onBefore: ({ method, url, async, user, password }) => {
133+
onBeforeOpen: ({method, url, async, user, password}) => {
121134
// return CANCEL_XHR;
122135
},
123-
onAfter: ({ method, url, async, user, password }, responseText) => {
124-
console.log({ url, method, dataSend, response });
136+
onBeforeSend: ({method, url, async, user, password}, dataSend) => {
137+
// return CANCEL_XHR;
125138
},
139+
onAfterSend: ({method, url, async, user, password}, dataSend, response) => {}
126140
});
127141
*/

‎working_note.md

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2,6 +2,8 @@
22

33
## 30/05/2024 - ?
44

5+
- [ ] analyze this <https://chromewebstore.google.com/detail/esuit-ad-blocker-for-face/jkbklfkombochacjoeagggbiohipcbaj>
6+
57
- [ ] check linux compatible -> relative path in manifest + file name camelcase
68

79
- [ ] modify responseText xhr <https://stackoverflow.com/a/37532556/23648002>

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