├── .vscode ├── extensions.json └── settings.json ├── LICENSE ├── README.md ├── deno.json ├── deno.lock └── main.ts /.vscode/extensions.json: -------------------------------------------------------------------------------- 1 | { 2 | "recommendations": [ 3 | "denoland.vscode-deno", 4 | "streetsidesoftware.code-spell-checker" 5 | ] 6 | } 7 | -------------------------------------------------------------------------------- /.vscode/settings.json: -------------------------------------------------------------------------------- 1 | { 2 | "deno.enable": true, 3 | "deno.unstable": true, 4 | "files.eol": "\n", 5 | "files.insertFinalNewline": true, 6 | "files.trimFinalNewlines": true, 7 | "[json]": { 8 | "editor.defaultFormatter": "vscode.json-language-features", 9 | "editor.formatOnSave": true 10 | }, 11 | "[jsonc]": { 12 | "editor.defaultFormatter": "vscode.json-language-features", 13 | "editor.formatOnSave": true 14 | }, 15 | "[typescript]": { 16 | "editor.defaultFormatter": "denoland.vscode-deno", 17 | "editor.formatOnSave": true, 18 | "editor.codeActionsOnSave": { 19 | "source.organizeImports": "explicit" 20 | } 21 | }, 22 | "cSpell.words": [ 23 | "fedi", 24 | "fedify", 25 | "fediverse", 26 | "hono", 27 | "Misskey", 28 | "Pixelfed", 29 | "Pleroma" 30 | ] 31 | } 32 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU AFFERO GENERAL PUBLIC LICENSE 2 | Version 3, 19 November 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU Affero General Public License is a free, copyleft license for 11 | software and other kinds of works, specifically designed to ensure 12 | cooperation with the community in the case of network server software. 13 | 14 | The licenses for most software and other practical works are designed 15 | to take away your freedom to share and change the works. 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Limitation of Liability. 599 | 600 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 601 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 602 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 603 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 604 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 605 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 606 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 607 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 608 | SUCH DAMAGES. 609 | 610 | 17. Interpretation of Sections 15 and 16. 611 | 612 | If the disclaimer of warranty and limitation of liability provided 613 | above cannot be given local legal effect according to their terms, 614 | reviewing courts shall apply local law that most closely approximates 615 | an absolute waiver of all civil liability in connection with the 616 | Program, unless a warranty or assumption of liability accompanies a 617 | copy of the Program in return for a fee. 618 | 619 | END OF TERMS AND CONDITIONS 620 | 621 | How to Apply These Terms to Your New Programs 622 | 623 | If you develop a new program, and you want it to be of the greatest 624 | possible use to the public, the best way to achieve this is to make it 625 | free software which everyone can redistribute and change under these terms. 626 | 627 | To do so, attach the following notices to the program. It is safest 628 | to attach them to the start of each source file to most effectively 629 | state the exclusion of warranty; and each file should have at least 630 | the "copyright" line and a pointer to where the full notice is found. 631 | 632 | 633 | Copyright (C) 634 | 635 | This program is free software: you can redistribute it and/or modify 636 | it under the terms of the GNU Affero General Public License as published by 637 | the Free Software Foundation, either version 3 of the License, or 638 | (at your option) any later version. 639 | 640 | This program is distributed in the hope that it will be useful, 641 | but WITHOUT ANY WARRANTY; without even the implied warranty of 642 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 643 | GNU Affero General Public License for more details. 644 | 645 | You should have received a copy of the GNU Affero General Public License 646 | along with this program. If not, see . 647 | 648 | Also add information on how to contact you by electronic and paper mail. 649 | 650 | If your software can interact with users remotely through a computer 651 | network, you should also make sure that it provides a way for users to 652 | get its source. For example, if your program is a web application, its 653 | interface could display a "Source" link that leads users to an archive 654 | of the code. There are many ways you could offer source, and different 655 | solutions will be better for different programs; see section 13 for the 656 | specific requirements. 657 | 658 | You should also get your employer (if you work as a programmer) or school, 659 | if any, to sign a "copyright disclaimer" for the program, if necessary. 660 | For more information on this, and how to apply and follow the GNU AGPL, see 661 | . 662 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Fedi badge 2 | ========== 3 | 4 | This is a simple badge generator for ActivityPub-enabled social media platforms, 5 | i.e., fediverse. It is inspired by [Shields.io] and is intended to be used in 6 | a similar way. It does not support only Mastodon, but also other platforms like 7 | Pleroma, Misskey, Pixelfed, and so on.[^1] 8 | 9 | Here is an example of a fedi badge: 10 | 11 | https://fedi-badge.deno.dev/@hongminhee@fosstodon.org/followers.svg 12 | 13 | ![Follow @hongminhee@fosstodon.org](https://fedi-badge.deno.dev/@hongminhee@fosstodon.org/followers.svg) 14 | 15 | The pattern of the URL is: 16 | 17 | https://fedi-badge.deno.dev/@USER@DOMAIN/followers.svg 18 | https://fedi-badge.deno.dev/@USER@DOMAIN/following.svg 19 | https://fedi-badge.deno.dev/@USER@DOMAIN/posts.svg 20 | 21 | Optionally, you can specify the following options in the query string: 22 | 23 | - `label`: The label of the badge. If not specified, it will be automatically 24 | *Follow @USER@DOMAIN*. 25 | - `style`: The style of the badge. It can be one of `plastic`, `flat`, 26 | `flat-square`, `for-the-badge`, `social`. If not specified, it will be 27 | `social`. 28 | 29 | Example: 30 | 31 | https://fedi-badge.deno.dev/@USER@DOMAIN/followers.svg?style=flat 32 | 33 | Note that each badge is cached for an hour, so you may not see the immediate 34 | change after your social media activity. 35 | 36 | [^1]: Unless you configured your following/followers to be private. 37 | 38 | [Shields.io]: https://shields.io/ 39 | -------------------------------------------------------------------------------- /deno.json: -------------------------------------------------------------------------------- 1 | { 2 | "imports": { 3 | "@fedify/fedify": "jsr:@fedify/fedify@^1.0.2", 4 | "badge-maker": "npm:badge-maker@^3.3.1", 5 | "hono": "https://deno.land/x/hono@v4.1.3/mod.ts" 6 | }, 7 | "tasks": { 8 | "start": "deno run --unstable-kv --allow-env=NODE_V8_COVERAGE,JEST_WORKER_ID --allow-read --allow-net main.ts" 9 | } 10 | } 11 | -------------------------------------------------------------------------------- /deno.lock: -------------------------------------------------------------------------------- 1 | { 2 | "version": "3", 3 | "packages": { 4 | "specifiers": { 5 | "jsr:@fedify/fedify@^1.0.2": "jsr:@fedify/fedify@1.0.2", 6 | "jsr:@hugoalh/http-header-link@^1.0.2": "jsr:@hugoalh/http-header-link@1.0.2", 7 | "jsr:@hugoalh/is-string-singleline@1.0.2": "jsr:@hugoalh/is-string-singleline@1.0.2", 8 | "jsr:@logtape/logtape@^0.6.2": "jsr:@logtape/logtape@0.6.2", 9 | "jsr:@std/bytes@^1.0.2": "jsr:@std/bytes@1.0.2", 10 | "jsr:@std/encoding@^1.0.5": "jsr:@std/encoding@1.0.5", 11 | "jsr:@std/http@^1.0.6": "jsr:@std/http@1.0.7", 12 | "jsr:@std/semver@^1.0.3": "jsr:@std/semver@1.0.3", 13 | "npm:@phensley/language-tag@^1.9.0": "npm:@phensley/language-tag@1.9.0", 14 | "npm:asn1js@^3.0.5": "npm:asn1js@3.0.5", 15 | "npm:badge-maker@^3.3.1": "npm:badge-maker@3.3.1", 16 | "npm:create-hono": "npm:create-hono@0.5.0", 17 | "npm:json-canon@^1.0.1": "npm:json-canon@1.0.1", 18 | "npm:jsonld@^8.3.2": "npm:jsonld@8.3.2", 19 | 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!= null) return cached.value; 12 | let actor; 13 | try { 14 | actor = await lookupObject(handle); 15 | } catch (_) { 16 | return null; 17 | } 18 | if (!isActor(actor)) return null; 19 | let collection: Collection | null = null; 20 | try { 21 | collection = counter == "followers" 22 | ? await actor.getFollowers() 23 | : counter == "following" 24 | ? await actor.getFollowing() 25 | : await actor.getOutbox(); 26 | } catch (_) { 27 | return null; 28 | } 29 | const num = collection?.totalItems ?? null; 30 | await kv.set(["count", handle, counter], num, { expireIn: 60 * 60 * 1000 }); 31 | return num; 32 | } 33 | 34 | const app = new Hono(); 35 | 36 | app.get("/", (c) => c.redirect("https://github.com/dahlia/fedi-badge")); 37 | 38 | app.get( 39 | "/:handle{@[^@]+@[^@]+}/:counter{followers[.]svg|following[.]svg|posts[.]svg}", 40 | async (c) => { 41 | const { handle, counter } = c.req.param(); 42 | const query = c.req.query(); 43 | const num = await count( 44 | handle, 45 | counter === "followers.svg" 46 | ? "followers" 47 | : counter === "following.svg" 48 | ? "following" 49 | : "posts", 50 | ); 51 | const style: 52 | | "plastic" 53 | | "flat" 54 | | "flat-square" 55 | | "for-the-badge" 56 | | "social" = 57 | ["plastic", "flat", "flat-square", "for-the-badge", "social"].includes( 58 | query.style, 59 | ) 60 | // deno-lint-ignore no-explicit-any 61 | ? query.style as unknown as any 62 | : "social"; 63 | const svg = makeBadge({ 64 | label: query.label == null ? `Follow ${handle}` : query.label, 65 | message: num?.toString() ?? "N/A", 66 | style, 67 | }); 68 | return c.body(svg, { 69 | headers: { 70 | "Cache-Control": "public, max-age=3600", 71 | "Content-Type": "image/svg+xml", 72 | "Last-Modified": new Date().toUTCString(), 73 | "Expires": new Date(Date.now() + 3600 * 1000).toUTCString(), 74 | }, 75 | }); 76 | }, 77 | ); 78 | 79 | if (import.meta.main) { 80 | Deno.serve(app.fetch); 81 | } 82 | --------------------------------------------------------------------------------