├── LICENSE
├── README.md
├── background.js
├── logo.png
├── manifest.json
├── pack
├── popup.css
├── popup.html
└── popup.js
/LICENSE:
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1 | GNU GENERAL PUBLIC LICENSE
2 | Version 3, 29 June 2007
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4 | Copyright (C) 2007 Free Software Foundation, Inc.
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580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 |
584 | Later license versions may give you additional or different
585 | permissions. However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 |
589 | 15. Disclaimer of Warranty.
590 |
591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 |
600 | 16. Limitation of Liability.
601 |
602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 |
612 | 17. Interpretation of Sections 15 and 16.
613 |
614 | If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 |
621 | END OF TERMS AND CONDITIONS
622 |
623 | How to Apply These Terms to Your New Programs
624 |
625 | If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 |
629 | To do so, attach the following notices to the program. It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 |
634 |
635 | Copyright (C)
636 |
637 | This program is free software: you can redistribute it and/or modify
638 | it under the terms of the GNU General Public License as published by
639 | the Free Software Foundation, either version 3 of the License, or
640 | (at your option) any later version.
641 |
642 | This program is distributed in the hope that it will be useful,
643 | but WITHOUT ANY WARRANTY; without even the implied warranty of
644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
645 | GNU General Public License for more details.
646 |
647 | You should have received a copy of the GNU General Public License
648 | along with this program. If not, see .
649 |
650 | Also add information on how to contact you by electronic and paper mail.
651 |
652 | If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 |
655 | Copyright (C)
656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 | This is free software, and you are welcome to redistribute it
658 | under certain conditions; type `show c' for details.
659 |
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License. Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 |
664 | You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | .
668 |
669 | The GNU General Public License does not permit incorporating your program
670 | into proprietary programs. If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library. If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License. But first, please read
674 | .
675 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Archived 🔒
2 | - This repo is closed for 2 major reasons:
3 | 1. I have lost 2FA credentials to log into my Mozilla account. So there is no possibility for future updates.
4 | 2. The project requires a complete overhaul. Further patches will complicate it unnecessarily.
5 | - I hope `Alter` was able to provide some value.
6 |
7 |
8 |
9 | # Alter
10 | - It is a browser extension, currently available for [Firefox](https://addons.mozilla.org/addon/alter/).
11 | - Alter tries to redirect you to privacy-friendly alternatives.
12 | - As of now it redirects YouTube, Twitter, Reddit, Instagram and Medium links to Invidious, Nitter, Teddit, Bibliogram and Scribe respectively.
13 |
14 | ### How to download
15 | - Go to https://addons.mozilla.org/addon/alter/
16 |
17 | ### Alter can "access your data for all websites". Can I trust it?
18 | - Alter watches all urls and and only redirects those that matches its filters.
19 | - It runs completely on your browser.
20 | - It has no third-party.
21 | - It does not keep any log.
22 | - The source code is completely open source.
23 |
24 | ### FAQs
25 | *Sometimes it is stuck and do not redirect. What to do?*
26 | - The Alter icon provides you the option to change redirect instances.
27 | - In this case you need to change instance to a different one.
28 |
29 | *After update, some redirections are showing undefined. What to do?*
30 | - When new redirection feature is added, no instance is saved for the new feature. So alter does not know where to redirect.
31 | - Click on the Alter icon and submit the form once. You'll be good to go.
32 |
--------------------------------------------------------------------------------
/background.js:
--------------------------------------------------------------------------------
1 | const twitterUrls = ["*://twitter.com/*", "*://mobile.twitter.com/*"];
2 | const quoraUrls = ["*://www.quora.com/*", "*://quora.com/*"];
3 | const redditUrls = ["*://reddit.com/*", "*://www.reddit.com/*"];
4 | const youtubeUrls = [
5 | "*://youtube.com/*",
6 | "*://m.youtube.com/*",
7 | "*://www.youtube.com/*",
8 | "*://youtu.be/*",
9 | ];
10 | const mediumUrls = ["*://medium.com/*", "*://*.medium.com/*"];
11 | const allInstances = {
12 | nitter: [
13 | "nitter.net",
14 | "nitter.pussthecat.org",
15 | "nitter.kavin.rocks",
16 | "nitter.eu",
17 | ],
18 | teddit: ["teddit.net", "teddit.ggc-project.de", "teddit.kavin.rocks"],
19 | invidious: ["invidious.snopyta.org", "yewtu.be"],
20 | scribe: ["scribe.rip", "scribe.nixnet.services", "scribe.citizen4.eu"],
21 | quetre: ["quetre.iket.me", "quetre.odyssey346.dev"],
22 | };
23 |
24 | let allInstancesArray = [];
25 | Object.values(allInstances).forEach((instances) => {
26 | instances.forEach((instance) => allInstancesArray.push(`*://${instance}/*`));
27 | });
28 |
29 | let currentInstances = {
30 | nitter: "nitter.net",
31 | teddit: "teddit.net",
32 | invidious: "yewtu.be",
33 | scribe: "scribe.rip",
34 | quetre: "quetre.iket.me",
35 | disable: false,
36 | disable_nitter: false,
37 | disable_teddit: false,
38 | disable_invidious: false,
39 | disable_scribe: false,
40 | disable_quetre: false,
41 | };
42 |
43 | function replaceUrl(url, regex, newDomain) {
44 | return url.replace(regex, `$1://${newDomain}/$3`);
45 | }
46 |
47 | function getDomain(url) {
48 | if (url) {
49 | return url.replace(/https?:\/\/([^\/]*).*/, "$1");
50 | } else {
51 | return null;
52 | }
53 | }
54 |
55 | function redirect(requestDetails) {
56 | if (currentInstances.disable) {
57 | return null;
58 | } else {
59 | const originalUrl = requestDetails.url;
60 | const originalDomain = getDomain(originalUrl);
61 |
62 | const twitterRegex = /(https?):\/\/(twitter.com|mobile.twitter.com)\/(.*)/;
63 | const redditRegex = /(https?):\/\/(reddit.com|www.reddit.com)\/(.*)/;
64 | const youtubeRegex =
65 | /(https?):\/\/(youtube.com|m.youtube.com|www.youtube.com|youtu.be)\/(.*)/;
66 | const mediumRegex = /https?:\/\/(?:.*\.)*(? Nitter
70 | if (!currentInstances.disable_nitter && twitterRegex.test(originalUrl)) {
71 | const newUrl = replaceUrl(
72 | originalUrl,
73 | twitterRegex,
74 | currentInstances.nitter
75 | );
76 | console.log("New URL ", newUrl);
77 | return { redirectUrl: newUrl };
78 | }
79 |
80 | // Reddit -> Teddit
81 | if (!currentInstances.disable_teddit && redditRegex.test(originalUrl)) {
82 | const newUrl = replaceUrl(
83 | originalUrl,
84 | redditRegex,
85 | currentInstances.teddit
86 | );
87 | // newUrl = originalUrl.replace(redditRegex, `$1://${currentInstances.teddit}/$3`)
88 | console.log("New URL ", newUrl);
89 | return { redirectUrl: newUrl };
90 | }
91 |
92 | // YouTube -> Invidious
93 | if (!currentInstances.disable_invidious && youtubeRegex.test(originalUrl)) {
94 | const newUrl = replaceUrl(
95 | originalUrl,
96 | youtubeRegex,
97 | currentInstances.invidious
98 | );
99 | console.log("New URL ", newUrl);
100 | return { redirectUrl: newUrl };
101 | }
102 |
103 | // Medium → Scribe
104 | if (!currentInstances.disable_scribe && mediumRegex.test(originalUrl)) {
105 | const newUrl = originalUrl.replace(
106 | mediumRegex,
107 | `https://${currentInstances.scribe}$1`
108 | );
109 | console.log("New URL ", newUrl);
110 | return { redirectUrl: newUrl };
111 | }
112 |
113 | // Quora → Quetre
114 | if (!currentInstances.disable_quetre && quoraRegex.test(originalUrl)) {
115 | const newUrl = replaceUrl(
116 | originalUrl,
117 | quoraRegex,
118 | currentInstances.quetre
119 | );
120 | console.log("New URL ", newUrl);
121 | return { redirectUrl: newUrl };
122 | }
123 |
124 | // Other Instance -> Current Instance
125 | if (
126 | allInstancesArray.findIndex((instance) =>
127 | instance.includes(originalDomain)
128 | ) > -1 &&
129 | !Object.values(currentInstances).includes(originalDomain)
130 | ) {
131 | let instanceKey = "";
132 | for (const [k, v] of Object.entries(allInstances)) {
133 | if (v.includes(originalDomain)) {
134 | instanceKey = k;
135 | }
136 | }
137 |
138 | const newUrl = originalUrl.replace(
139 | /(https?:\/\/)([^\/]*)(.*)/,
140 | `$1${currentInstances[instanceKey]}$3`
141 | );
142 |
143 | console.log("New URL ", newUrl);
144 | return { redirectUrl: newUrl };
145 | }
146 | }
147 | }
148 |
149 | function setToLocalStorage(object) {
150 | browser.storage.local.set(object).then(
151 | () => console.log("Saved to Local Storage"),
152 | (err) => console.log(err)
153 | );
154 | }
155 |
156 | function updateCurrentInstances() {
157 | browser.storage.local.get().then(
158 | (res) => {
159 | if (Object.keys(res).length !== 0) {
160 | console.log("Current", res);
161 | currentInstances = res;
162 | } else {
163 | console.log("Local storage is empty", res);
164 | }
165 | },
166 | (err) => console.log(err)
167 | );
168 | }
169 |
170 | function handleMessage(message, sender, sendResponse) {
171 | if (message.type === "bg_update_instances") {
172 | setToLocalStorage(message.instancesSelected);
173 | updateCurrentInstances();
174 | sendResponse("Instances Updated");
175 | }
176 |
177 | if (message.type === "bg_get_instances") {
178 | sendResponse({
179 | allInstances,
180 | currentInstances,
181 | });
182 | }
183 | }
184 |
185 | updateCurrentInstances();
186 |
187 | browser.runtime.onMessage.addListener(handleMessage);
188 |
189 | browser.webRequest.onBeforeRequest.addListener(
190 | redirect,
191 | {
192 | urls: [
193 | ...twitterUrls,
194 | ...redditUrls,
195 | ...youtubeUrls,
196 | ...mediumUrls,
197 | ...quoraUrls,
198 | ...allInstancesArray,
199 | ],
200 | types: ["main_frame"],
201 | },
202 | ["blocking"]
203 | );
204 |
--------------------------------------------------------------------------------
/logo.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/w3bdev1/alter/db79fb5fe37a9e1ed0e0d8ae2dba8e62ba13fe21/logo.png
--------------------------------------------------------------------------------
/manifest.json:
--------------------------------------------------------------------------------
1 | {
2 | "manifest_version": 2,
3 | "name": "Alter",
4 | "version": "7.0",
5 |
6 | "description": "Redirect to privacy-friendly alternatives",
7 | "permissions": ["webRequest", "webRequestBlocking", "", "storage"],
8 | "background": {
9 | "scripts": ["background.js"]
10 | },
11 | "browser_action": {
12 | "default_title": "Alter",
13 | "default_popup": "popup.html",
14 | "default_icon": {
15 | "128": "./logo.png"
16 | }
17 | }
18 | }
19 |
--------------------------------------------------------------------------------
/pack:
--------------------------------------------------------------------------------
1 | #!/bin/bash
2 | zip -r ../alter.zip * --exclude .git LICENSE README.md $0
3 |
--------------------------------------------------------------------------------
/popup.css:
--------------------------------------------------------------------------------
1 | body {
2 | font-family: sans-serif;
3 | }
4 |
5 | .add-custom {
6 | background: none;
7 | border: none;
8 | height: 1.3rem;
9 | width: 1.3rem;
10 | border: 1px solid black;
11 | cursor: pointer;
12 | }
13 |
14 | .submit {
15 | margin: 1em 0 0 0.2em;
16 | padding: 0.4em 0.6em;
17 | border: none;
18 | background-color: black;
19 | color: white;
20 | font-weight: 700;
21 | cursor: pointer;
22 | }
23 |
24 | .submit:hover {
25 | background-color: #333;
26 | }
27 |
28 | .form-bottom {
29 | padding-top: 1em;
30 | display: grid;
31 | place-items: center;
32 | }
33 |
34 | fieldset input[type="text"] {
35 | display: none;
36 | }
37 |
38 | fieldset {
39 | position: relative;
40 | min-width: 18rem;
41 | }
42 |
43 | /* Switch and Sliders */
44 | .switch {
45 | --switch-height: 1rem;
46 | --switch-width: 2rem;
47 | --switch-padding-h: 0.2rem;
48 | --switch-padding-v: 0.08rem;
49 | --slider-diameter: calc(var(--switch-width) / 2 - var(--switch-padding-h));
50 | --slider-transition: calc(
51 | var(--switch-width) - var(--slider-diameter) - 2 * var(--switch-padding-h)
52 | );
53 | position: absolute;
54 | right: 1rem;
55 | top: 0.3rem;
56 | display: inline-block;
57 | width: var(--switch-width);
58 | height: var(--switch-height);
59 | }
60 |
61 | .switch input {
62 | height: 0;
63 | }
64 |
65 | .slider {
66 | position: absolute;
67 | cursor: pointer;
68 | top: 0;
69 | left: 0;
70 | right: 0;
71 | bottom: 0;
72 | border-radius: 0.5rem;
73 | background-color: #ccc;
74 | transition: 0.4s;
75 | }
76 |
77 | .slider:before {
78 | position: absolute;
79 | content: "";
80 | height: var(--slider-diameter);
81 | width: var(--slider-diameter);
82 | left: var(--switch-padding-h);
83 | top: var(--switch-padding-v);
84 | border-radius: 50%;
85 | background-color: #fff;
86 | transition: 0.4s;
87 | }
88 |
89 | .switch input:checked + .slider {
90 | background-color: #222;
91 | }
92 |
93 | .switch input:checked + .slider:before {
94 | transform: translateX(var(--slider-transition));
95 | }
96 |
--------------------------------------------------------------------------------
/popup.html:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 | Document
8 |
9 |
10 |
73 |
74 |
75 |
76 |
77 |
--------------------------------------------------------------------------------
/popup.js:
--------------------------------------------------------------------------------
1 | const data = {
2 | nitter: {
3 | el: document.getElementById("nitter-instances"),
4 | selected: "",
5 | isCustom: true,
6 | },
7 | teddit: {
8 | el: document.getElementById("teddit-instances"),
9 | selected: "",
10 | isCustom: true,
11 | },
12 | invidious: {
13 | el: document.getElementById("invidious-instances"),
14 | selected: "",
15 | isCustom: true,
16 | },
17 | scribe: {
18 | el: document.getElementById("scribe-instances"),
19 | selected: "",
20 | isCustom: true,
21 | },
22 | quetre: {
23 | el: document.getElementById("quetre-instances"),
24 | selected: "",
25 | isCustom: true,
26 | },
27 | disable: {
28 | el: document.getElementById("disable"),
29 | selected: "",
30 | isCustom: false,
31 | },
32 | switch_nitter: {
33 | el: document.getElementById("switch-nitter"),
34 | isCustom: false,
35 | },
36 | switch_teddit: {
37 | el: document.getElementById("switch-teddit"),
38 | isCustom: false,
39 | },
40 | switch_invidious: {
41 | el: document.getElementById("switch-invidious"),
42 | isCustom: false,
43 | },
44 | switch_scribe: {
45 | el: document.getElementById("switch-scribe"),
46 | isCustom: false,
47 | },
48 | switch_quetre: {
49 | el: document.getElementById("switch-quetre"),
50 | isCustom: false,
51 | },
52 | };
53 |
54 | function addEventHandlers() {
55 | document.onclick = (e) => {
56 | if (e.target.nodeName === "OPTION") {
57 | const customInput = e.target.parentNode.nextElementSibling;
58 | const addCustomBtn = customInput.nextElementSibling;
59 | if (e.target.value === "other") {
60 | addCustomBtn.style.display = "none";
61 | customInput.style.display = "block";
62 | customInput.required = true;
63 | return;
64 | } else {
65 | addCustomBtn.style.display = "inline";
66 | customInput.style.display = "none";
67 | customInput.required = false;
68 | }
69 | }
70 |
71 | if (e.target.nodeName === "BUTTON") {
72 | if (e.target.className === "add-custom") {
73 | const customInput = e.target.previousElementSibling;
74 | const selectMenu = customInput.previousElementSibling;
75 | e.target.style.display = "none";
76 | selectMenu.value = "other";
77 | customInput.style.display = "block";
78 | customInput.required = true;
79 | }
80 | }
81 | };
82 | }
83 |
84 | function createOption(value, isSelected = false, key) {
85 | let optionCreated = document.createElement("option");
86 | optionCreated.setAttribute("value", value.toLowerCase());
87 | if (isSelected === true) {
88 | optionCreated.setAttribute("selected", "selected");
89 | data[key].isCustom = false;
90 | }
91 | optionCreated.innerText = value;
92 | return optionCreated;
93 | }
94 |
95 | function setCustomOptions() {
96 | for (let [k, v] of Object.entries(data)) {
97 | if (v.isCustom) {
98 | const customInput = v.el.nextElementSibling;
99 | const addCustomBtn = customInput.nextElementSibling;
100 | v.el.value = "other";
101 | addCustomBtn.style.display = "none";
102 | customInput.style.display = "block";
103 | customInput.value = v.selected;
104 | }
105 | }
106 | }
107 |
108 | browser.runtime.sendMessage({ type: "bg_get_instances" }).then(
109 | (msgFromBg) => {
110 | const instances = msgFromBg.allInstances;
111 | const currentInstances = msgFromBg.currentInstances;
112 |
113 | for (let key of Object.keys(data)) {
114 | switch (key) {
115 | case "disable":
116 | data[key].el.checked = currentInstances.disable;
117 | break;
118 | case "switch_nitter":
119 | data[key].el.checked = !currentInstances.disable_nitter;
120 | break;
121 | case "switch_teddit":
122 | data[key].el.checked = !currentInstances.disable_teddit;
123 | break;
124 | case "switch_invidious":
125 | data[key].el.checked = !currentInstances.disable_invidious;
126 | break;
127 | case "switch_scribe":
128 | data[key].el.checked = !currentInstances.disable_scribe;
129 | break;
130 | case "switch_quetre":
131 | data[key].el.checked = !currentInstances.disable_quetre;
132 | break;
133 | default:
134 | instances[key].forEach((ins) => {
135 | const option = createOption(
136 | ins,
137 | currentInstances[key] === ins,
138 | key
139 | );
140 | data[key].el.appendChild(option);
141 | data[key].selected = currentInstances[key];
142 | });
143 | data[key].el.appendChild(createOption("Other"));
144 | }
145 | }
146 |
147 | setCustomOptions();
148 | addEventHandlers();
149 | },
150 | (error) => {
151 | console.log(error);
152 | }
153 | );
154 |
155 | function getInputValue(element) {
156 | if (element.value === "other") {
157 | return element.nextElementSibling.value
158 | .replace(/^https?:\/\//, "")
159 | .replace(/\/$/, "");
160 | } else {
161 | return element.value;
162 | }
163 | }
164 |
165 | document.forms[0].onsubmit = (e) => {
166 | e.preventDefault();
167 | const instancesSelected = {
168 | nitter: getInputValue(data.nitter.el),
169 | teddit: getInputValue(data.teddit.el),
170 | invidious: getInputValue(data.invidious.el),
171 | scribe: getInputValue(data.scribe.el),
172 | quetre: getInputValue(data.quetre.el),
173 | disable: data.disable.el.checked,
174 | disable_nitter: !data.switch_nitter.el.checked,
175 | disable_teddit: !data.switch_teddit.el.checked,
176 | disable_invidious: !data.switch_invidious.el.checked,
177 | disable_scribe: !data.switch_scribe.el.checked,
178 | disable_quetre: !data.switch_quetre.el.checked,
179 | };
180 |
181 | const sending = browser.runtime.sendMessage({
182 | type: "bg_update_instances",
183 | instancesSelected,
184 | });
185 |
186 | sending.then(
187 | () => {
188 | window.close();
189 | },
190 | (error) => {
191 | console.log(error);
192 | }
193 | );
194 | };
195 |
--------------------------------------------------------------------------------