From 4ff11cc16de0988772346acd75389f3a9840f8ee Mon Sep 17 00:00:00 2001 From: Niilyx <43385037+Niilyx@users.noreply.github.com> Date: Fri, 10 Nov 2023 22:07:41 +0100 Subject: [PATCH] feat(latex): use MathJax for LaTeX image generation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Interprétation LaTeX par le bot lui-même (#97) Co-authored-by: Elliot --- config/commands/general.ts | 2 + config/settings.ts | 2 +- package-lock.json | 420 +++++++++++++++++++++++++++++++++- package.json | 5 +- src/commands/General/latex.ts | 108 ++++++++- 5 files changed, 522 insertions(+), 15 deletions(-) diff --git a/config/commands/general.ts b/config/commands/general.ts index 33e0a1d..b6152aa 100644 --- a/config/commands/general.ts +++ b/config/commands/general.ts @@ -69,6 +69,8 @@ export const latex = { placeholder: 'Écris ton équation ici... e.g. \\frac{1}{2}', }, }, + invalidEquation: "Cette équation n'est pas valide ! Le message d'erreur LaTeX est :\n`{msg}`", + genericError: "L'image de la formule n'a pas pu être générée.", }, } as const; diff --git a/config/settings.ts b/config/settings.ts index 4421d11..62ed03b 100644 --- a/config/settings.ts +++ b/config/settings.ts @@ -27,7 +27,6 @@ export const settings = { discordInviteLinkRegex: /(?:discord\.(?:gg|io|me|plus|link)|invite\.(?:gg|ink)|discord(?:app)?\.com\/invite)\/(?[\w-]{2,})/i, }, apis: { - latex: 'https://chart.apis.google.com/chart?cht=tx&chf=bg,s,FFFFFF00&chco=FFFFFF&chl=', compiler: 'https://api.jdoodle.com/v1/execute', compilerCredits: 'https://api.jdoodle.com/v1/credit-spent', }, @@ -93,5 +92,6 @@ export const settings = { thanks: [ `Kétessar Tan (${userMention('222050512684580876')}) : contributions`, `David Gorgette (${userMention('890084641317478400')}) : suggestions & signalements de bugs`, + `Idir Nait Meddour (${userMention('280682698740203521')}) : contributions`, ], } as const; diff --git a/package-lock.json b/package-lock.json index ba8dfd2..8d20130 100644 --- a/package-lock.json +++ b/package-lock.json @@ -29,6 +29,7 @@ "fuzzy-search": "^3.2.1", "lodash": "^4.17.21", "marked": "^8.0.0", + "mathjax": "^3.2.2", "module-alias": "^2.2.3", "mongoose": "^7.5.0", "mongoose-autopopulate": "^1.0.1", @@ -38,6 +39,7 @@ "pdf-merger-js": "^4.3.0", "pupa": "^2.1.1", "reflect-metadata": "^0.1.13", + "sharp": "^0.32.6", "slug": "^8.2.3", "source-map-support": "^0.5.21" }, @@ -1259,20 +1261,54 @@ } }, "node_modules/axios": { - "version": "1.5.0", - "resolved": "https://registry.npmjs.org/axios/-/axios-1.5.0.tgz", - "integrity": "sha512-D4DdjDo5CY50Qms0qGQTTw6Q44jl7zRwY7bthds06pUGfChBCTcQs+N743eFWGEd6pRTMd6A+I87aWyFV5wiZQ==", + "version": "1.6.1", + "resolved": "https://registry.npmjs.org/axios/-/axios-1.6.1.tgz", + "integrity": "sha512-vfBmhDpKafglh0EldBEbVuoe7DyAavGSLWhuSm5ZSEKQnHhBf0xAAwybbNH1IkrJNGnS/VG4I5yxig1pCEXE4g==", "dependencies": { "follow-redirects": "^1.15.0", "form-data": "^4.0.0", "proxy-from-env": "^1.1.0" } }, + "node_modules/b4a": { + "version": "1.6.4", + "resolved": "https://registry.npmjs.org/b4a/-/b4a-1.6.4.tgz", + "integrity": "sha512-fpWrvyVHEKyeEvbKZTVOeZF3VSKKWtJxFIxX/jaVPf+cLbGUSitjb49pHLqPV2BUNNZ0LcoeEGfE/YCpyDYHIw==" + }, "node_modules/balanced-match": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz", "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==" }, + "node_modules/base64-js": { + "version": "1.5.1", + "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz", + "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==", + "funding": [ + { + "type": "github", + "url": "https://github.com/sponsors/feross" + }, + { + "type": "patreon", + "url": "https://www.patreon.com/feross" + }, + { + "type": "consulting", + "url": "https://feross.org/support" + } + ] + }, + "node_modules/bl": { + "version": "4.1.0", + "resolved": "https://registry.npmjs.org/bl/-/bl-4.1.0.tgz", + "integrity": "sha512-1W07cM9gS6DcLperZfFSj+bWLtaPGSOHWhPiGzXmvVJbRLdG82sH/Kn8EtW1VqWVA54AKf2h5k5BbnIbwF3h6w==", + "dependencies": { + "buffer": "^5.5.0", + "inherits": "^2.0.4", + "readable-stream": "^3.4.0" + } + }, "node_modules/brace-expansion": { "version": "1.1.11", "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz", @@ -1302,6 +1338,29 @@ "node": ">=14.20.1" } }, + "node_modules/buffer": { + "version": "5.7.1", + "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.7.1.tgz", + "integrity": "sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==", + "funding": [ + { + "type": "github", + "url": "https://github.com/sponsors/feross" + }, + { + "type": "patreon", + "url": "https://www.patreon.com/feross" + }, + { + "type": "consulting", + "url": "https://feross.org/support" + } + ], + "dependencies": { + "base64-js": "^1.3.1", + "ieee754": "^1.1.13" + } + }, "node_modules/buffer-from": { "version": "1.1.2", "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz", @@ -1431,11 +1490,22 @@ "node": ">=0.8.0" } }, + "node_modules/color": { + "version": "4.2.3", + "resolved": "https://registry.npmjs.org/color/-/color-4.2.3.tgz", + "integrity": "sha512-1rXeuUUiGGrykh+CeBdu5Ie7OJwinCgQY0bc7GCRxy5xVHy+moaqkpL/jqQq0MtQOeYcrqEz4abc5f0KtU7W4A==", + "dependencies": { + "color-convert": "^2.0.1", + "color-string": "^1.9.0" + }, + "engines": { + "node": ">=12.5.0" + } + }, "node_modules/color-convert": { "version": "2.0.1", "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz", "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==", - "dev": true, "dependencies": { "color-name": "~1.1.4" }, @@ -1446,8 +1516,16 @@ "node_modules/color-name": { "version": "1.1.4", "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz", - "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==", - "dev": true + "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==" + }, + "node_modules/color-string": { + "version": "1.9.1", + "resolved": "https://registry.npmjs.org/color-string/-/color-string-1.9.1.tgz", + "integrity": "sha512-shrVawQFojnZv6xM40anx4CkoDP+fZsw/ZerEMsW/pyzsRbElpsL/DBVW7q3ExxwusdNXI3lXpuhEZkzs8p5Eg==", + "dependencies": { + "color-name": "^1.0.0", + "simple-swizzle": "^0.2.2" + } }, "node_modules/color-support": { "version": "1.1.3", @@ -1554,6 +1632,28 @@ } } }, + "node_modules/decompress-response": { + "version": "6.0.0", + "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-6.0.0.tgz", + "integrity": "sha512-aW35yZM6Bb/4oJlZncMH2LCoZtJXTRxES17vE3hoRiowU2kWHaJKFkSBDnDR+cm9J+9QhXmREyIfv0pji9ejCQ==", + "dependencies": { + "mimic-response": "^3.1.0" + }, + "engines": { + "node": ">=10" + }, + "funding": { + "url": "https://github.com/sponsors/sindresorhus" + } + }, + "node_modules/deep-extend": { + "version": "0.6.0", + "resolved": "https://registry.npmjs.org/deep-extend/-/deep-extend-0.6.0.tgz", + "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==", + "engines": { + "node": ">=4.0.0" + } + }, "node_modules/deep-is": { "version": "0.1.4", "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.4.tgz", @@ -1676,6 +1776,14 @@ "resolved": "https://registry.npmjs.org/emojilib/-/emojilib-2.4.0.tgz", "integrity": "sha512-5U0rVMU5Y2n2+ykNLQqMoqklN9ICBT/KsvC1Gz6vqHbz2AXXGkG+Pm5rMWk/8Vjrr/mY9985Hi8DYzn1F09Nyw==" }, + "node_modules/end-of-stream": { + "version": "1.4.4", + "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz", + "integrity": 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"node-addon-api": "^6.1.0", + "prebuild-install": "^7.1.1", + "semver": "^7.5.4", + "simple-get": "^4.0.1", + "tar-fs": "^3.0.4", + "tunnel-agent": "^0.6.0" + }, + "engines": { + "node": ">=14.15.0" + }, + "funding": { + "url": "https://opencollective.com/libvips" + } + }, "node_modules/shebang-command": { "version": "2.0.0", "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz", @@ -4430,6 +4740,62 @@ "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.7.tgz", "integrity": "sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ==" }, + "node_modules/simple-concat": { + "version": "1.0.1", + "resolved": "https://registry.npmjs.org/simple-concat/-/simple-concat-1.0.1.tgz", + "integrity": "sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q==", + "funding": [ + { + "type": "github", + "url": "https://github.com/sponsors/feross" + }, + { + "type": "patreon", + "url": "https://www.patreon.com/feross" + }, + { + "type": "consulting", + "url": "https://feross.org/support" + } + ] + }, + "node_modules/simple-get": { + "version": "4.0.1", + "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-4.0.1.tgz", + "integrity": "sha512-brv7p5WgH0jmQJr1ZDDfKDOSeWWg+OVypG99A/5vYGPqJ6pxiaHLy8nxtFjBA7oMa01ebA9gfh1uMCFqOuXxvA==", + "funding": [ + { + "type": "github", + "url": "https://github.com/sponsors/feross" + }, + { + "type": "patreon", + "url": "https://www.patreon.com/feross" + }, + { + "type": "consulting", + "url": "https://feross.org/support" + } + ], + "dependencies": { + "decompress-response": "^6.0.0", + "once": "^1.3.1", + "simple-concat": "^1.0.0" + } + }, + "node_modules/simple-swizzle": { + "version": "0.2.2", + "resolved": "https://registry.npmjs.org/simple-swizzle/-/simple-swizzle-0.2.2.tgz", + "integrity": "sha512-JA//kQgZtbuY83m+xT+tXJkmJncGMTFT+C+g2h2R9uxkYIrE2yy9sgmcLhCnw57/WSD+Eh3J97FPEDFnbXnDUg==", + "dependencies": { + "is-arrayish": "^0.3.1" + } + }, + "node_modules/simple-swizzle/node_modules/is-arrayish": { + "version": "0.3.2", + "resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.3.2.tgz", + "integrity": "sha512-eVRqCvVlZbuw3GrM63ovNSNAeA1K16kaR/LRY/92w0zxQ5/1YzwblUX652i4Xs9RwAGjW9d9y6X88t8OaAJfWQ==" + }, "node_modules/skin-tone": { "version": "2.0.0", "resolved": "https://registry.npmjs.org/skin-tone/-/skin-tone-2.0.0.tgz", @@ -4546,6 +4912,15 @@ "node": ">=10.0.0" } }, + "node_modules/streamx": { + "version": "2.15.1", + "resolved": "https://registry.npmjs.org/streamx/-/streamx-2.15.1.tgz", + "integrity": "sha512-fQMzy2O/Q47rgwErk/eGeLu/roaFWV0jVsogDmrszM9uIw8L5OA+t+V93MgYlufNptfjmYR1tOMWhei/Eh7TQA==", + "dependencies": { + "fast-fifo": "^1.1.0", + "queue-tick": "^1.0.1" + } + }, "node_modules/string_decoder": { "version": "1.3.0", "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz", @@ -4705,6 +5080,26 @@ "node": ">=10" } }, + "node_modules/tar-fs": { + "version": "3.0.4", + "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-3.0.4.tgz", + "integrity": "sha512-5AFQU8b9qLfZCX9zp2duONhPmZv0hGYiBPJsyUdqMjzq/mqVpy/rEUSeHk1+YitmxugaptgBh5oDGU3VsAJq4w==", + "dependencies": { + "mkdirp-classic": "^0.5.2", + "pump": "^3.0.0", + "tar-stream": "^3.1.5" + } + }, + "node_modules/tar-stream": { + "version": "3.1.6", + "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-3.1.6.tgz", + "integrity": "sha512-B/UyjYwPpMBv+PaFSWAmtYjwdrlEaZQEhMIBFNC5oEG8lpiW8XjcSdmEaClj28ArfKScKHs2nshz3k2le6crsg==", + "dependencies": { + "b4a": "^1.6.4", + "fast-fifo": "^1.2.0", + "streamx": "^2.15.0" + } + }, "node_modules/text-table": { "version": "0.2.0", "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz", @@ -4789,6 +5184,17 @@ "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==", "dev": true }, + "node_modules/tunnel-agent": { + "version": "0.6.0", + "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz", + "integrity": "sha512-McnNiV1l8RYeY8tBgEpuodCC1mLUdbSN+CYBL7kJsJNInOP8UjDDEwdk6Mw60vdLLrr5NHKZhMAOSrR2NZuQ+w==", + "dependencies": { + "safe-buffer": "^5.0.1" + }, + "engines": { + "node": "*" + } + }, "node_modules/type-check": { "version": "0.4.0", "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz", diff --git a/package.json b/package.json index 0e7d836..82467eb 100644 --- a/package.json +++ b/package.json @@ -14,7 +14,8 @@ "keywords": [], "author": "Elliot 'noftaly' Maisl", "contributors": [ - "Kethash" + "Kethash", + "Niilyx" ], "license": "MIT", "repository": { @@ -42,6 +43,7 @@ "fuzzy-search": "^3.2.1", "lodash": "^4.17.21", "marked": "^8.0.0", + "mathjax": "^3.2.2", "module-alias": "^2.2.3", "mongoose": "^7.5.0", "mongoose-autopopulate": "^1.0.1", @@ -51,6 +53,7 @@ "pdf-merger-js": "^4.3.0", "pupa": "^2.1.1", "reflect-metadata": "^0.1.13", + "sharp": "^0.32.6", "slug": "^8.2.3", "source-map-support": "^0.5.21" }, diff --git a/src/commands/General/latex.ts b/src/commands/General/latex.ts index 82cb26c..286873a 100644 --- a/src/commands/General/latex.ts +++ b/src/commands/General/latex.ts @@ -1,13 +1,13 @@ import { ApplyOptions } from '@sapphire/decorators'; import type { CommandInteraction, ModalSubmitInteraction } from 'discord.js'; import { - ActionRowBuilder, - ModalBuilder, - TextInputBuilder, - TextInputStyle, + ActionRowBuilder, AttachmentBuilder, ModalBuilder, TextInputBuilder, TextInputStyle, } from 'discord.js'; +// @ts-expect-error: MathJax doesn't have types +import { init as initMathJax } from 'mathjax'; +import pupa from 'pupa'; +import sharp from 'sharp'; import { latex as config } from '@/config/commands/general'; -import { settings } from '@/config/settings'; import { HorizonCommand } from '@/structures/commands/HorizonCommand'; enum Options { @@ -28,8 +28,50 @@ const equationModal = new ModalBuilder() ), ); +// eslint-disable-next-line @typescript-eslint/no-explicit-any +function findError(node: any, attribute: string): string | null { + if (node.attributes?.[attribute]) + return node.attributes[attribute]; + + if (node.children) { + for (const child of node.children) { + if (child.kind === 'defs') + continue; + + const result = findError(child, attribute); + if (result) + return result; + } + } + + return null; +} + @ApplyOptions(config) export class LatexCommand extends HorizonCommand { + // eslint-disable-next-line @typescript-eslint/no-explicit-any + private readonly _mathJax: any = initMathJax({ + loader: { + load: [ + 'input/tex', + 'output/svg', + '[tex]/ams', + '[tex]/color', + '[tex]/mathtools', + '[tex]/physics', + '[tex]/unicode', + '[tex]/textmacros', + ], + }, + // eslint-disable-next-line @typescript-eslint/naming-convention + tex: { packages: { '[+]': ['ams', 'color', 'mathtools', 'physics', 'unicode', 'textmacros'] } }, + // eslint-disable-next-line unicorn/consistent-function-scoping + }).then((readyMJ: object) => { + // Explicitly bypass the readonly to effectively use an await at the initialization of MathJax + // eslint-disable-next-line @typescript-eslint/no-explicit-any + (this as any)._mathJax = readyMJ; + }); + public override registerApplicationCommands(registry: HorizonCommand.Registry): void { registry.registerChatInputCommand( command => command @@ -49,6 +91,7 @@ export class LatexCommand extends HorizonCommand { let replyTo: CommandInteraction<'cached'> | ModalSubmitInteraction<'cached'> = interaction; let equation = interaction.options.getString(Options.Equation); + if (!equation) { // Show a modal with a text input await interaction.showModal(equationModal); @@ -63,6 +106,59 @@ export class LatexCommand extends HorizonCommand { replyTo = submit; equation = submit.fields.getTextInputValue('equation'); } - await replyTo.reply(settings.apis.latex + encodeURIComponent(equation)); + + try { + const result = await this._tryToGenerate(equation); + await replyTo.reply({ files: [new AttachmentBuilder(result).setName('output.png')] }); + } catch (e) { + if (e instanceof EvalError) { + await replyTo.reply({ + content: pupa(this.messages.invalidEquation, { msg: e.message }), + ephemeral: true, + }); + } else { + await replyTo.reply({ + content: this.messages.genericError, + ephemeral: true, + }); + } + } + } + + private async _parseAndGenerate(equation: string): Promise { + const svg = this._mathJax.tex2svg(equation, { display: true }).children[0]; + + const svgText: string = this._mathJax.startup.adaptor.outerHTML(svg); + + // MathJax doesn't return an error if the equation is invalid, so we have to check ourselves + const svgError = findError(svg, 'data-mjx-error'); + if (svgError) + throw new EvalError(svgError); + + return sharp(Buffer.from(svgText)) + .resize({ width: Math.min(Math.floor(6 * equation.length), 1024) }) + .extend({ + top: 10, + bottom: 10, + left: 10, + right: 10, + background: '#FFF', + }) // Padding + .flatten({ background: '#FFF' }) // Colored background + .toBuffer(); + } + + private async _tryToGenerate(equation: string, attempt = 0): Promise { + if (attempt > 3) + throw new Error('MathJax retry limit reached'); + + try { + return this._parseAndGenerate(equation); + } catch (e) { + if (e.toString().includes('MathJax retry')) + return this._tryToGenerate(equation, attempt + 1); + + throw e; + } } }