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"resolved": "https://registry.npmjs.org/escalade/-/escalade-3.2.0.tgz", @@ -3687,6 +4172,21 @@ "url": "https://github.com/sponsors/ljharb" } }, + "node_modules/fsevents": { + "version": "2.3.3", + "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz", + "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==", + "dev": true, + "hasInstallScript": true, + "license": "MIT", + "optional": true, + "os": [ + "darwin" + ], + "engines": { + "node": "^8.16.0 || ^10.6.0 || >=11.0.0" + } + }, "node_modules/function-bind": { "version": "1.1.2", "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz", @@ -6342,6 +6842,26 @@ "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==", "license": "0BSD" }, + "node_modules/tsx": { + "version": "4.21.0", + "resolved": "https://registry.npmjs.org/tsx/-/tsx-4.21.0.tgz", + "integrity": "sha512-5C1sg4USs1lfG0GFb2RLXsdpXqBSEhAaA/0kPL01wxzpMqLILNxIxIOKiILz+cdg/pLnOUxFYOR5yhHU666wbw==", + "dev": true, + "license": "MIT", + "dependencies": { + "esbuild": "~0.27.0", + "get-tsconfig": "^4.7.5" + }, + "bin": { + "tsx": "dist/cli.mjs" + }, + "engines": { + "node": ">=18.0.0" + }, + "optionalDependencies": { + "fsevents": "~2.3.3" + } + }, "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 f62685b..5721f60 100644 --- a/package.json +++ b/package.json @@ -6,7 +6,8 @@ "dev": "next dev", "build": "next build", "start": "next start", - "lint": "eslint" + "lint": "eslint", + "test": "tsx --test 'src/lib/__tests__/*.test.ts'" }, "dependencies": { "@types/dompurify": "^3.0.5", @@ -25,6 +26,7 @@ "eslint": "^9", "eslint-config-next": "16.2.0", "tailwindcss": "^4", + "tsx": "^4.21.0", "typescript": "^5" } } diff --git a/src/app/compose/page.tsx b/src/app/compose/page.tsx index 3006604..78723ab 100644 --- a/src/app/compose/page.tsx +++ b/src/app/compose/page.tsx @@ -1,6 +1,12 @@ import { getSession, getAccountId, getIdentities, getEmail } from "@/lib/jmap"; import { formatAddressRFC, formatFullDate } from "@/lib/format"; -import { EmailAddress } from "@/lib/types"; +import { + reSubject, + fwdSubject, + addrList, + buildReplyQuote, + buildForwardQuote, +} from "@/lib/compose"; import Composer from "@/components/Composer"; export const dynamic = "force-dynamic"; @@ -9,20 +15,6 @@ interface Props { searchParams: Promise<{ mode?: string; id?: string }>; } -function reSubject(subject: string | null): string { - const s = subject ?? ""; - return /^re:/i.test(s) ? s : `Re: ${s}`; -} - -function fwdSubject(subject: string | null): string { - const s = subject ?? ""; - return /^fwd?:/i.test(s) ? s : `Fwd: ${s}`; -} - -function addrList(addrs: EmailAddress[] | null): string { - return (addrs ?? []).map(formatAddressRFC).join(", "); -} - export default async function ComposePage({ searchParams }: Props) { const { mode, id } = await searchParams; @@ -114,28 +106,3 @@ export default async function ComposePage({ searchParams }: Props) { ); } - -function buildReplyQuote(date: string, from: string, body: string): string { - const quoted = body - .trimEnd() - .split("\n") - .map((line) => `> ${line}`) - .join("\n"); - return `\n\n---\n\n*On ${date}, ${from} wrote:*\n\n${quoted}`; -} - -function buildForwardQuote({ - from, - to, - date, - subject, - body, -}: { - from: string; - to: string; - date: string; - subject: string; - body: string; -}): string { - return `\n\n---\n\n**---------- Forwarded message ----------**\n\n**From:** ${from} \n**To:** ${to} \n**Date:** ${date} \n**Subject:** ${subject}\n\n${body}`; -} diff --git a/src/components/EmailBody.tsx b/src/components/EmailBody.tsx index a5632ec..19b97ca 100644 --- a/src/components/EmailBody.tsx +++ b/src/components/EmailBody.tsx @@ -1,68 +1,13 @@ "use client"; import { useEffect, useRef } from "react"; +import { prepareHtml } from "@/lib/emailHtml"; interface Props { body: string; type: "html" | "text"; } -/** - * Prepare the email HTML for display: - * - Inject a low-specificity white/black fallback so emails without explicit - * colors stay readable. Emails with their own styles (including dark-mode - * media queries) will override this naturally. - * - Inject a tiny resize script that reports the document height to the - * parent frame via postMessage so the iframe can grow to fit its content. - * (requires allow-scripts; without allow-same-origin the script has no - * access to the parent's DOM, cookies, or storage.) - */ -/** - * Returns true if the email already handles dark mode itself. - * We check for a prefers-color-scheme:dark media query anywhere in the HTML. - */ -function hasDarkModeSupport(html: string): boolean { - return /prefers-color-scheme\s*:\s*dark/i.test(html); -} - -function prepareHtml(html: string): string { - // Emails without native dark-mode support get a CSS inversion so they match - // the OS dark theme. Images get a counter-inversion so they look normal. - const forceDark = hasDarkModeSupport(html) - ? "" - : "@media(prefers-color-scheme:dark){html{filter:invert(1) hue-rotate(180deg)}" + - "img,video,canvas,svg{filter:invert(1) hue-rotate(180deg)}}"; - - const inject = [ - // Low-specificity fallback; emails with explicit colors override this. - ``, - ``, - ].join(""); - - if (/]/i.test(html)) { - return html.replace(/]*)>/i, `${inject}`); - } - return `${inject}${html}`; -} - export default function EmailBody({ body, type }: Props) { const iframeRef = useRef(null); diff --git a/src/lib/__tests__/compose.test.ts b/src/lib/__tests__/compose.test.ts new file mode 100644 index 0000000..edbde77 --- /dev/null +++ b/src/lib/__tests__/compose.test.ts @@ -0,0 +1,84 @@ +import { describe, it } from "node:test"; +import assert from "node:assert/strict"; +import { + reSubject, + fwdSubject, + buildReplyQuote, + buildForwardQuote, +} from "../compose"; + +describe("reSubject", () => { + it("prefixes plain subjects", () => { + assert.equal(reSubject("Hello"), "Re: Hello"); + }); + + it("does not double-prefix", () => { + assert.equal(reSubject("Re: Hello"), "Re: Hello"); + }); + + it("is case-insensitive", () => { + assert.equal(reSubject("RE: Hello"), "RE: Hello"); + assert.equal(reSubject("re: Hello"), "re: Hello"); + }); + + it("handles null subject", () => { + assert.equal(reSubject(null), "Re: "); + }); +}); + +describe("fwdSubject", () => { + it("prefixes plain subjects", () => { + assert.equal(fwdSubject("Hello"), "Fwd: Hello"); + }); + + it("does not double-prefix Fwd:", () => { + assert.equal(fwdSubject("Fwd: Hello"), "Fwd: Hello"); + }); + + it("does not double-prefix Fw:", () => { + assert.equal(fwdSubject("Fw: Hello"), "Fw: Hello"); + }); + + it("is case-insensitive", () => { + assert.equal(fwdSubject("FWD: Hello"), "FWD: Hello"); + }); + + it("handles null subject", () => { + assert.equal(fwdSubject(null), "Fwd: "); + }); +}); + +describe("buildReplyQuote", () => { + it("quotes each body line with >", () => { + const result = buildReplyQuote("Mon Jan 1", "alice@example.com", "line1\nline2"); + assert.ok(result.includes("> line1\n> line2"), `got: ${result}`); + }); + + it("includes the attribution line", () => { + const result = buildReplyQuote("Mon Jan 1", "Alice ", "body"); + assert.ok(result.includes("On Mon Jan 1, Alice wrote:")); + }); + + it("trims trailing newlines from body before quoting", () => { + const result = buildReplyQuote("date", "from", "body\n\n"); + // trailing blank lines should not produce empty quoted lines at the end + assert.ok(!result.endsWith("> \n> "), `unexpected trailing quoted blanks: ${result}`); + }); +}); + +describe("buildForwardQuote", () => { + it("includes all header fields", () => { + const result = buildForwardQuote({ + from: "Alice ", + to: "Bob ", + date: "Mon Jan 1", + subject: "Hello", + body: "original body", + }); + assert.ok(result.includes("**From:** Alice ")); + assert.ok(result.includes("**To:** Bob ")); + assert.ok(result.includes("**Date:** Mon Jan 1")); + assert.ok(result.includes("**Subject:** Hello")); + assert.ok(result.includes("original body")); + }); +}); diff --git a/src/lib/__tests__/emailHtml.test.ts b/src/lib/__tests__/emailHtml.test.ts new file mode 100644 index 0000000..3db4af8 --- /dev/null +++ b/src/lib/__tests__/emailHtml.test.ts @@ -0,0 +1,44 @@ +import { describe, it } from "node:test"; +import assert from "node:assert/strict"; +import { prepareHtml } from "../emailHtml"; + +describe("prepareHtml", () => { + it("injects into existing ", () => { + const result = prepareHtml("hi"); + // style and script should be inside + assert.ok(result.startsWith("`, + ].join(""); + + if (/]/i.test(html)) { + return html.replace(/]*)>/i, `${inject}`); + } + return `${inject}${html}`; +}