Ilia Denisov
b918217497
Unlink: POST /user/link/unlink (telegram|vk) via account.RemoveIdentity, refusing
the last identity; email is never unlinked. New fbs LinkUnlinkRequest + gateway
link.unlink op, returning the refreshed profile.
Change-email: purposeChange confirm-codes (RequestChangeCode/ConfirmChange) that
atomically replace the account's confirmed email (account.replaceEmailIdentity);
a new address owned by another account is refused without disclosure, never merged.
The one-tap deeplink handles purposeChange too. Reuses the LinkEmail* fbs tables;
gateway link.email.change.{request,confirm} ops + backendclient methods; branded
ru/en change-email copy.
222 lines
8.6 KiB
Go
222 lines
8.6 KiB
Go
package account
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import (
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"fmt"
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"html/template"
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"strings"
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tmpltext "text/template"
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"time"
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)
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// emailBrandColor is the single accent used in the confirmation email — a calm
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// tile green, matching the "no riot of colours" brief.
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const emailBrandColor = "#2f7d4f"
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// confirmEmailView is the fully-localised data the confirmation email templates
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// render. Every string is resolved before rendering, so the templates carry no
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// localisation logic.
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type confirmEmailView struct {
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Brand string
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Heading string
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Intro string
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Code string
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Expiry string
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CTALabel string
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DeeplinkURL string
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FooterIgnore string
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LandingURL string
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LandingLabel string
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Preheader string
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Locale string
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Accent string
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}
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// emailCopy is the purpose- and locale-specific wording of a confirmation email.
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type emailCopy struct {
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Subject string
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Preheader string
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Heading string
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Intro string
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CTALabel string
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FooterIgnore string
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}
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// confirmEmailCopy holds the wording per (purpose, locale). Unknown purposes fall
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// back to the neutral link wording and unknown locales fall back to English.
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var confirmEmailCopy = map[string]map[string]emailCopy{
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purposeLogin: {
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"en": {
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Subject: "Your Erudit sign-in code",
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Preheader: "Your sign-in code",
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Heading: "Sign in to Erudit",
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Intro: "Enter this code to sign in:",
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CTALabel: "Sign in with one tap",
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FooterIgnore: "If you didn't request this email, you can safely ignore it.",
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},
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"ru": {
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Subject: "Код для входа в Эрудит",
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Preheader: "Ваш код для входа",
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Heading: "Вход в Эрудит",
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Intro: "Введите этот код, чтобы войти в игру:",
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CTALabel: "Войти одним нажатием",
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FooterIgnore: "Если вы не запрашивали это письмо, просто проигнорируйте его.",
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},
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},
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purposeLink: {
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"en": {
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Subject: "Your Erudit confirmation code",
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Preheader: "Your confirmation code",
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Heading: "Confirm your e-mail",
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Intro: "Enter this code to confirm your address:",
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CTALabel: "Confirm with one tap",
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FooterIgnore: "If you didn't request this email, you can safely ignore it.",
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},
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"ru": {
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Subject: "Код подтверждения Эрудит",
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Preheader: "Ваш код подтверждения",
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Heading: "Подтверждение e-mail",
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Intro: "Введите этот код, чтобы подтвердить адрес:",
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CTALabel: "Подтвердить одним нажатием",
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FooterIgnore: "Если вы не запрашивали это письмо, просто проигнорируйте его.",
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},
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},
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purposeChange: {
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"en": {
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Subject: "Confirm your new Erudit e-mail",
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Preheader: "Confirm your new address",
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Heading: "Confirm your new e-mail",
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Intro: "Enter this code to switch your account to this address:",
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CTALabel: "Confirm with one tap",
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FooterIgnore: "If you didn't request this change, you can safely ignore it — your address stays the same.",
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},
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"ru": {
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Subject: "Подтвердите новый e-mail в Эрудит",
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Preheader: "Подтвердите новый адрес",
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Heading: "Смена e-mail",
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Intro: "Введите этот код, чтобы привязать аккаунт к новому адресу:",
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CTALabel: "Подтвердить одним нажатием",
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FooterIgnore: "Если вы не запрашивали смену, просто проигнорируйте письмо — адрес останется прежним.",
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},
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},
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}
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// emailBrand is the brand wordmark per locale.
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var emailBrand = map[string]string{"en": "Erudit", "ru": "Эрудит"}
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// emailExpiry formats the code-lifetime line per locale (abbreviated minutes to
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// avoid plural agreement).
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func emailExpiry(locale string, d time.Duration) string {
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min := int(d / time.Minute)
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if locale == "ru" {
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return fmt.Sprintf("Код действует %d мин.", min)
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}
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return fmt.Sprintf("The code is valid for %d minutes.", min)
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}
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// normalizeLocale maps an account language to a supported email locale, defaulting
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// to English.
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func normalizeLocale(locale string) string {
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if locale == "ru" {
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return "ru"
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}
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return "en"
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}
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// renderConfirmationEmail builds the branded confirmation email for purpose in
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// locale: a large readable code plus a one-tap deeplink button, with an
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// ignore-notice footer and a landing link. Both a plain-text body and an HTML
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// alternative are produced. deeplinkURL is the absolute /confirm link and
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// landingURL the public landing origin.
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func renderConfirmationEmail(purpose, code, deeplinkURL, landingURL, locale string) (Message, error) {
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loc := normalizeLocale(locale)
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byLocale, ok := confirmEmailCopy[purpose]
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if !ok {
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byLocale = confirmEmailCopy[purposeLink]
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}
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cp := byLocale[loc]
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view := confirmEmailView{
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Brand: emailBrand[loc],
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Heading: cp.Heading,
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Intro: cp.Intro,
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Code: code,
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Expiry: emailExpiry(loc, emailCodeTTL),
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CTALabel: cp.CTALabel,
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DeeplinkURL: deeplinkURL,
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FooterIgnore: cp.FooterIgnore,
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LandingURL: landingURL,
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LandingLabel: emailBrand[loc],
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Preheader: cp.Preheader,
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Locale: loc,
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Accent: emailBrandColor,
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}
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var html strings.Builder
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if err := confirmEmailHTML.Execute(&html, view); err != nil {
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return Message{}, fmt.Errorf("account: render confirmation email (html): %w", err)
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}
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var text strings.Builder
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if err := confirmEmailText.Execute(&text, view); err != nil {
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return Message{}, fmt.Errorf("account: render confirmation email (text): %w", err)
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}
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return Message{Subject: cp.Subject, Text: text.String(), HTML: html.String()}, nil
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}
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// confirmEmailHTML is a compact, image-free, mobile-friendly HTML email. Layout is
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// table-based for broad mail-client compatibility and all styling is inlined
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// because clients strip <style> blocks.
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var confirmEmailHTML = template.Must(template.New("confirmEmailHTML").Parse(`<!DOCTYPE html>
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<html lang="{{.Locale}}">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>{{.Brand}}</title>
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</head>
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<body style="margin:0;padding:0;background:#f4f5f7;">
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<span style="display:none;max-height:0;overflow:hidden;opacity:0;">{{.Preheader}}</span>
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<table role="presentation" width="100%" cellpadding="0" cellspacing="0" style="background:#f4f5f7;padding:24px 12px;">
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<tr><td align="center">
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<table role="presentation" width="100%" cellpadding="0" cellspacing="0" style="max-width:460px;background:#ffffff;border:1px solid #e5e7eb;border-radius:14px;overflow:hidden;font-family:-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;">
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<tr><td style="padding:28px 32px 4px;">
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<div style="font-size:15px;font-weight:700;letter-spacing:.04em;color:{{.Accent}};">{{.Brand}}</div>
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</td></tr>
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<tr><td style="padding:8px 32px 0;">
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<h1 style="margin:0;font-size:20px;line-height:1.3;color:#111827;font-weight:600;">{{.Heading}}</h1>
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<p style="margin:12px 0 0;font-size:15px;line-height:1.5;color:#374151;">{{.Intro}}</p>
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</td></tr>
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<tr><td style="padding:18px 32px 0;">
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<div style="font-size:34px;font-weight:700;letter-spacing:8px;text-align:center;color:#111827;background:#f3f4f6;border-radius:10px;padding:18px 0;font-family:'SFMono-Regular',Consolas,Menlo,monospace;">{{.Code}}</div>
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<p style="margin:10px 0 0;font-size:13px;line-height:1.5;color:#6b7280;text-align:center;">{{.Expiry}}</p>
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</td></tr>
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{{if .DeeplinkURL}}<tr><td style="padding:22px 32px 0;" align="center">
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<a href="{{.DeeplinkURL}}" style="display:inline-block;background:{{.Accent}};color:#ffffff;text-decoration:none;font-size:15px;font-weight:600;padding:12px 26px;border-radius:9px;">{{.CTALabel}}</a>
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</td></tr>
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{{end}}<tr><td style="padding:26px 32px 28px;">
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<hr style="border:none;border-top:1px solid #eceef1;margin:0 0 16px;">
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<p style="margin:0;font-size:12px;line-height:1.6;color:#9ca3af;">{{.FooterIgnore}}</p>
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<p style="margin:10px 0 0;font-size:12px;color:#9ca3af;"><a href="{{.LandingURL}}" style="color:#6b7280;text-decoration:none;">{{.LandingLabel}}</a></p>
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</td></tr>
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</table>
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</td></tr>
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</table>
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</body>
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</html>
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`))
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// confirmEmailText is the plain-text alternative (and multipart fallback).
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var confirmEmailText = tmpltext.Must(tmpltext.New("confirmEmailText").Parse(`{{.Brand}}
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{{.Heading}}
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{{.Intro}}
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{{.Code}}
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{{.Expiry}}
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{{if .DeeplinkURL}}{{.CTALabel}}:
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{{.DeeplinkURL}}
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{{end}}—
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{{.FooterIgnore}}
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{{.LandingLabel}} — {{.LandingURL}}
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`))
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