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1//! Transactional email through Cloudflare Email Sending.
2
3use g1t_kit::js;
4use serde::Serialize;
5use worker::{Env, Result};
6
7const FROM: &str = "g1t <noreply@g1t.sh>";
8const SITE: &str = "https://g1t.sh";
9
10/// Where links in mail point: SITE_URL, or g1t.sh when it is not set (a
11/// self-hosted installation sets it from its PUBLIC_URL).
12pub fn site(env: &Env) -> String {
13 let value = env.var("SITE_URL").map(|value| value.to_string()).unwrap_or_default();
14 let value = value.trim().trim_end_matches('/');
15 if value.is_empty() { SITE.to_owned() } else { value.to_owned() }
16}
17
18/// Who mail is from: MAIL_FROM, or g1t.sh's address when it is not set.
19fn from(env: &Env) -> String {
20 let value = env.var("MAIL_FROM").map(|value| value.to_string()).unwrap_or_default();
21 if value.trim().is_empty() { FROM.to_owned() } else { value.trim().to_owned() }
22}
23
24/// A site's address without its scheme, as mail names it in a sentence.
25fn bare(site: &str) -> &str {
26 site.split_once("://").map_or(site, |(_, rest)| rest)
27}
28
29#[derive(Serialize)]
30struct Message<'a> {
31 to: &'a str,
32 from: &'a str,
33 subject: &'a str,
34 text: String,
35 html: String,
36}
37
38/// What one email says, before it is laid out as text and HTML.
39#[derive(Debug, Default)]
40pub struct Letter {
41 pub paragraphs: Vec<String>,
42 /// Quoted passages, each with who or what it is from: a note from the
43 /// person who sent an invite, or what someone asking for access said.
44 pub quotes: Vec<(String, String)>,
45 /// A code to type, shown large before the button, with the line that
46 /// leads from it to the button.
47 pub code: Option<Code>,
48 /// The button: what it says, and where it goes.
49 pub action: Option<(String, String)>,
50 pub footer: String,
51}
52
53/// A code in a letter, and what joins it to the button after it.
54#[derive(Debug, Default, PartialEq, Eq)]
55pub struct Code {
56 pub code: String,
57 /// Said between the code and the button, such as "or follow the link".
58 pub then: String,
59}
60
61/// The plain text and HTML of a letter. Everything in it is escaped:
62/// names, notes and requests people wrote can reach every line.
63pub fn render(letter: &Letter, site: &str) -> (String, String) {
64 let mut text = String::new();
65 let mut html = format!(
66 "<div style=\"font-family:system-ui,sans-serif;max-width:480px;margin:0 auto;padding:32px 16px;color:#16150f\">\
67 <p style=\"margin:0 0 20px\"><img src=\"{site}/brand/g1t-logo.png\" width=\"60\" height=\"28\" alt=\"g1t\" style=\"display:block;border:0\"></p>"
68 );
69 for paragraph in &letter.paragraphs {
70 text.push_str(paragraph);
71 text.push_str("\n\n");
72 html.push_str(&format!("<p style=\"font-size:15px;line-height:1.6\">{}</p>", escape(paragraph)));
73 }
74 for (from, quote) in &letter.quotes {
75 text.push_str(&format!("{from}:\n"));
76 for line in quote.lines() {
77 text.push_str(&format!("> {line}\n"));
78 }
79 text.push('\n');
80 html.push_str(&format!(
81 "<p style=\"margin:20px 0 6px;font-size:13px;color:#6e6a5e\">{}</p>\
82 <blockquote style=\"margin:0;padding:2px 0 2px 14px;border-left:3px solid #b9a6f2;font-size:15px;line-height:1.6;white-space:pre-line\">{}</blockquote>",
83 escape(from),
84 escape(quote)
85 ));
86 }
87 if let Some(code) = &letter.code {
88 text.push_str(&format!(" {}\n\n{}\n\n", code.code, code.then));
89 html.push_str(&format!(
90 "<p style=\"margin:24px 0;padding:16px 0;text-align:center;background:#f3f1ea;border-radius:8px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:34px;font-weight:600;letter-spacing:10px;color:#16150f\">{}</p>\
91 <p style=\"font-size:15px;line-height:1.6\">{}</p>",
92 escape(&code.code),
93 escape(&code.then)
94 ));
95 }
96 if let Some((label, link)) = &letter.action {
97 text.push_str(&format!("{label}: {link}\n\n"));
98 html.push_str(&format!(
99 "<p style=\"margin:24px 0\"><a href=\"{}\" style=\"background:#16150f;color:#fff;text-decoration:none;padding:10px 18px;border-radius:6px;font-size:15px\">{}</a></p>",
100 escape(link),
101 escape(label)
102 ));
103 }
104 text.push_str(&letter.footer);
105 text.push('\n');
106 html.push_str(&format!(
107 "<p style=\"font-size:13px;line-height:1.6;color:#6e6a5e\">{}</p></div>",
108 escape(&letter.footer)
109 ));
110 (text, html)
111}
112
113/// Sends a letter.
114pub async fn send(env: &Env, to: &str, subject: &str, letter: &Letter) -> Result<()> {
115 let (text, html) = render(letter, &site(env));
116 let from = from(env);
117 let message = Message {
118 to,
119 from: &from,
120 subject,
121 text,
122 html,
123 };
124 let binding = js::binding(env, "EMAIL")?;
125 js::call(&binding, "send", &[js::to_js(&message)?]).await?;
126 Ok(())
127}
128
129/// A short message with one link to follow.
130pub async fn send_link(
131 env: &Env,
132 to: &str,
133 subject: &str,
134 intro: &str,
135 action: &str,
136 link: &str,
137 footer: &str,
138) -> Result<()> {
139 let letter = Letter {
140 paragraphs: vec![intro.to_owned()],
141 quotes: Vec::new(),
142 code: None,
143 action: Some((action.to_owned(), link.to_owned())),
144 footer: footer.to_owned(),
145 };
146 send(env, to, subject, &letter).await
147}
148
149/// Text made safe to put in HTML, in an element or a quoted attribute.
150fn escape(text: &str) -> String {
151 let mut escaped = String::with_capacity(text.len());
152 for c in text.chars() {
153 match c {
154 '&' => escaped.push_str("&amp;"),
155 '<' => escaped.push_str("&lt;"),
156 '>' => escaped.push_str("&gt;"),
157 '"' => escaped.push_str("&quot;"),
158 '\'' => escaped.push_str("&#39;"),
159 c => escaped.push(c),
160 }
161 }
162 escaped
163}
164
165/// What a confirmation email is for.
166#[derive(Clone, Copy, Debug, PartialEq, Eq)]
167pub enum Confirming {
168 /// The address a new account signed up with (or changed to before
169 /// confirming any).
170 NewAccount,
171 /// An address added to an account in use.
172 AddedAddress,
173}
174
175/// A confirmation email: the code to type, large, and the link that does
176/// the same, either one enough. The code leads the subject, so a phone's
177/// notification shows it.
178pub fn confirmation_letter(confirming: Confirming, username: &str, code: &str, link: &str) -> (String, Letter) {
179 let minutes = g1t_contracts::accounts::CONFIRM_TTL_SECONDS / 60;
180 let (intro, ignore) = match confirming {
181 Confirming::NewAccount => (
182 format!("Welcome to g1t, {username}. To finish creating your account, enter this code on the confirmation page:"),
183 "If you did not create a g1t account, you can ignore this message.",
184 ),
185 Confirming::AddedAddress => (
186 format!("To add this address to the g1t account {username}, enter this code on the confirmation page:"),
187 "If you did not add this address to a g1t account, you can ignore this message.",
188 ),
189 };
190 let letter = Letter {
191 paragraphs: vec![intro],
192 quotes: Vec::new(),
193 code: Some(Code {
194 code: code.to_owned(),
195 then: "Or skip the code and confirm with this link instead. Either one works; you need only one.".to_owned(),
196 }),
197 action: Some(("Confirm email".to_owned(), link.to_owned())),
198 footer: format!(
199 "The code and the link work for {minutes} minutes, and only once. Asking for a new email ends them both. {ignore}"
200 ),
201 };
202 (format!("{code} is your g1t confirmation code"), letter)
203}
204
205/// Sends a confirmation email with `code` and the link for `token`.
206pub async fn send_confirmation(env: &Env, to: &str, username: &str, confirming: Confirming, token: &str, code: &str) -> Result<()> {
207 let link = format!("{}/verify?token={token}", site(env));
208 let (subject, letter) = confirmation_letter(confirming, username, code, &link);
209 send(env, to, &subject, &letter).await
210}
211
212pub async fn send_password_reset(env: &Env, to: &str, username: &str, token: &str) -> Result<()> {
213 send_link(
214 env,
215 to,
216 "Reset your g1t password",
217 &format!("Someone asked to reset the password for the g1t account {username}."),
218 "Choose a new password",
219 &format!("{}/reset?token={token}", site(env)),
220 "This link works for 1 hour. If this was not you, ignore this message and your password stays the same.",
221 )
222 .await
223}
224
225/// What a security notice says: one sentence about what changed.
226pub fn security_wording(username: &str, change: &str) -> (String, String) {
227 (
228 format!("Security notice for your g1t account {username}"),
229 format!("{change}. This is about your g1t account {username}."),
230 )
231}
232
233/// Tells an account's addresses that something about its security changed.
234pub async fn send_security_notice(env: &Env, to: &str, username: &str, change: &str) -> Result<()> {
235 let (subject, intro) = security_wording(username, change);
236 send_link(
237 env,
238 to,
239 &subject,
240 &intro,
241 "Review your email settings",
242 &format!("{}/settings/emails", site(env)),
243 &format!(
244 "If this was you, there is nothing to do. If it was not, reset your password at {}/forgot straight away and remove any address you do not recognise.",
245 bare(&site(env))
246 ),
247 )
248 .await
249}
250
251/// What the email telling an account it was deleted says: its subject and
252/// first paragraph. `by_staff` when g1t's staff deleted it.
253pub fn deleted_wording(username: &str, by_staff: bool, days: u64) -> (String, String) {
254 let who = if by_staff { "g1t's staff deleted" } else { "You deleted" };
255 (
256 format!("Your g1t account {username} was deleted"),
257 format!(
258 "{who} your g1t account {username}. It has signed out everywhere, its access tokens and keys no longer work, and it has left every workspace. g1t keeps it for {days} days; after that it is removed for good."
259 ),
260 )
261}
262
263/// Tells an account's primary and backup addresses it was deleted, with how
264/// to ask for it back.
265pub async fn send_account_deleted(env: &Env, to: &str, username: &str, by_staff: bool, days: u64) -> Result<()> {
266 let (subject, intro) = deleted_wording(username, by_staff, days);
267 send_link(
268 env,
269 to,
270 &subject,
271 &intro,
272 "Contact support",
273 &format!("{}/support", site(env)),
274 &format!(
275 "If you did not mean to delete it, or did not delete it, write to support within {days} days and g1t can restore it."
276 ),
277 )
278 .await
279}
280
281/// An invite email: to make an account, or for an existing one to join a
282/// workspace.
283pub struct InviteEmail<'a> {
284 pub to: &'a str,
285 /// Who sent it (a name, or a username); None when g1t staff did.
286 pub from: Option<&'a str>,
287 /// The workspace it joins, by name.
288 pub workspace: Option<&'a str>,
289 pub joins_existing_account: bool,
290 pub code: &'a str,
291 /// The proof that whoever follows the link reads this inbox
292 /// (invites.rs, `email_proof`): the account made from it starts with
293 /// the address confirmed. None for an invite to an existing account,
294 /// or without IDENTITY_KEY.
295 pub proof: Option<&'a str>,
296 pub days: u64,
297 /// A line from whoever sent it.
298 pub note: Option<&'a str>,
299}
300
301/// An invite's page, as its email links to it: with the email's proof
302/// when it has one, so following it confirms the address (invites.rs).
303/// The code alone is what the inviter can see and share.
304pub fn invite_link(site: &str, code: &str, proof: Option<&str>) -> String {
305 match proof {
306 Some(proof) => format!("{site}/invite/{code}?proof={proof}"),
307 None => format!("{site}/invite/{code}"),
308 }
309}
310
311/// The subject and letter of an invite email.
312pub fn invite_letter(invite: &InviteEmail, site: &str) -> (String, Letter) {
313 let (subject, intro) = invite_wording(invite.from, invite.workspace, invite.joins_existing_account);
314 let action = match invite.workspace {
315 Some(workspace) if invite.joins_existing_account => format!("Join {workspace}"),
316 _ => "Accept invite".to_owned(),
317 };
318 let quotes = match invite.note.map(str::trim).filter(|note| !note.is_empty()) {
319 Some(note) => vec![(
320 match invite.from {
321 Some(from) => format!("A note from {from}"),
322 None => "A note from the g1t team".to_owned(),
323 },
324 note.to_owned(),
325 )],
326 None => Vec::new(),
327 };
328 let letter = Letter {
329 paragraphs: vec![intro],
330 quotes,
331 code: None,
332 action: Some((action, invite_link(site, invite.code, invite.proof))),
333 footer: format!(
334 "This invite works for {} days, only for this address. If you were not expecting it, you can ignore this message.",
335 invite.days
336 ),
337 };
338 (subject, letter)
339}
340
341pub async fn send_invite(env: &Env, invite: &InviteEmail<'_>) -> Result<()> {
342 let (subject, letter) = invite_letter(invite, &site(env));
343 send(env, invite.to, &subject, &letter).await
344}
345
346/// An invitation to collaborate on one repository. `code` is set when the
347/// address has no account yet: the link then makes one and accepts, with
348/// `proof` (see [`invite_link`]); without it, the link opens the
349/// invitation to accept or decline.
350pub async fn send_repo_invite(
351 env: &Env,
352 to: &str,
353 from: &str,
354 repo: &str,
355 role: &str,
356 code: Option<&str>,
357 proof: Option<&str>,
358 days: u64,
359) -> Result<()> {
360 let (subject, intro) = repo_invite_wording(from, repo, role, code.is_some());
361 let link = match code {
362 Some(code) => invite_link(&site(env), code, proof),
363 None => format!("{}/{repo}/invitations", site(env)),
364 };
365 send_link(
366 env,
367 to,
368 &subject,
369 &intro,
370 "View invitation",
371 &link,
372 &format!("This invitation works for {days} days. If you were not expecting it, you can ignore this message."),
373 )
374 .await
375}
376
377/// Why a person is emailed about an inbox item, as the end of a sentence.
378fn notified_because(reason: g1t_contracts::inbox::Reason) -> &'static str {
379 use g1t_contracts::inbox::Reason;
380 match reason {
381 Reason::Agent => "an agent is waiting on you",
382 Reason::ReviewRequested => "you were asked to review",
383 Reason::Assign => "you were assigned",
384 Reason::Mention => "you were mentioned",
385 Reason::TeamMention => "a team you are in was mentioned",
386 Reason::CiActivity => "it is about your work",
387 Reason::SecurityAlert => "you look after this repository's security",
388 Reason::StateChange => "you are subscribed to it",
389 Reason::Author => "you opened it",
390 Reason::Comment => "you commented on it",
391 Reason::Manual => "you subscribed to it",
392 Reason::Subscribed => "you watch this repository",
393 }
394}
395
396/// An item from the inbox, by email: what happened, what it happened to,
397/// and a link to it.
398pub fn notification_letter(a: &g1t_contracts::inbox::NotifyByEmailArgs, site: &str) -> Letter {
399 let path = if a.path.starts_with('/') { a.path.clone() } else { format!("/{}", a.path) };
400 Letter {
401 paragraphs: [a.subject.trim(), a.intro.trim()]
402 .into_iter()
403 .filter(|line| !line.is_empty())
404 .map(str::to_owned)
405 .collect(),
406 quotes: a.quote.iter().cloned().collect(),
407 code: None,
408 action: Some(("Open on g1t".to_owned(), format!("{site}{path}"))),
409 footer: format!(
410 "You are getting this because {}. Choose what you are emailed for at {site}/settings/notifications.",
411 notified_because(a.reason)
412 ),
413 }
414}
415
416pub async fn send_notification(env: &Env, to: &str, a: &g1t_contracts::inbox::NotifyByEmailArgs) -> Result<()> {
417 let letter = notification_letter(a, &site(env));
418 send(env, to, &a.subject, &letter).await
419}
420
421/// The subject and first line of a repository invitation.
422pub fn repo_invite_wording(from: &str, repo: &str, role: &str, new_account: bool) -> (String, String) {
423 let subject = format!("{from} invited you to {repo} on g1t");
424 let intro = if new_account {
425 format!(
426 "{from} invited you to collaborate on {repo} on g1t, with the {role} role. Accepting makes your g1t account and gives you access to {repo}."
427 )
428 } else {
429 format!("{from} invited you to collaborate on {repo} on g1t, with the {role} role.")
430 };
431 (subject, intro)
432}
433
434/// The subject and first line of an invite email.
435pub fn invite_wording(from: Option<&str>, workspace: Option<&str>, joins_existing_account: bool) -> (String, String) {
436 let who = from.unwrap_or("The g1t team");
437 match (workspace, joins_existing_account) {
438 (Some(workspace), true) => (
439 format!("{who} invited you to join {workspace} on g1t"),
440 format!("{who} invited you to join the {workspace} workspace on g1t."),
441 ),
442 (Some(workspace), false) => (
443 format!("{who} invited you to join {workspace} on g1t"),
444 format!(
445 "{who} invited you to join the {workspace} workspace on g1t, where people and agents ship software together. You do not have a g1t account yet, so this invitation also lets you make one; then you accept or decline joining {workspace}."
446 ),
447 ),
448 (None, _) => (
449 match from {
450 Some(from) => format!("{from} invited you to g1t"),
451 None => "Your invite to g1t".to_owned(),
452 },
453 format!("{who} invited you to g1t, where people and agents ship software together. Make your account from this invite. It does not add you to anyone's workspace: your account starts with a workspace of its own."),
454 ),
455 }
456}
457
458#[cfg(test)]
459mod tests {
460 use super::*;
461
462 #[test]
463 fn html_is_escaped() {
464 assert_eq!(
465 escape("<a href=\"x\">Tom & Jerry's</a>"),
466 "&lt;a href=&quot;x&quot;&gt;Tom &amp; Jerry&#39;s&lt;/a&gt;"
467 );
468 assert_eq!(escape("https://g1t.sh/verify?token=ab12"), "https://g1t.sh/verify?token=ab12");
469 }
470
471 #[test]
472 fn an_inbox_item_says_what_happened_and_why_it_was_sent() {
473 let a = g1t_contracts::inbox::NotifyByEmailArgs {
474 username: "ana".into(),
475 repo_id: "rep_1".into(),
476 subject: "bo asked you to review acme/rocket#7".into(),
477 intro: "Add the inbox".into(),
478 quote: None,
479 path: "/acme/rocket/pull/7".into(),
480 reason: g1t_contracts::inbox::Reason::ReviewRequested,
481 };
482 let letter = notification_letter(&a, SITE);
483 assert_eq!(letter.paragraphs, vec!["bo asked you to review acme/rocket#7", "Add the inbox"]);
484 assert_eq!(letter.action.unwrap().1, "https://g1t.sh/acme/rocket/pull/7");
485 assert!(letter.footer.starts_with("You are getting this because you were asked to review."));
486 assert!(letter.footer.ends_with("https://g1t.sh/settings/notifications."));
487 }
488
489 #[test]
490 fn invites_say_who_sent_them_and_what_they_are_for() {
491 let (subject, intro) = invite_wording(Some("ada"), None, false);
492 assert_eq!(subject, "ada invited you to g1t");
493 assert!(intro.starts_with("ada invited you to g1t"));
494 assert!(intro.contains("does not add you to anyone's workspace"));
495 let (subject, _) = invite_wording(None, None, false);
496 assert_eq!(subject, "Your invite to g1t");
497 let (subject, intro) = invite_wording(Some("ada"), Some("acme"), true);
498 assert_eq!(subject, "ada invited you to join acme on g1t");
499 assert_eq!(intro, "ada invited you to join the acme workspace on g1t.");
500 let (_, intro) = invite_wording(Some("ada"), Some("acme"), false);
501 assert!(intro.contains("also lets you make one; then you accept or decline joining acme"));
502 }
503
504 fn invite<'a>(note: Option<&'a str>, from: Option<&'a str>) -> InviteEmail<'a> {
505 InviteEmail {
506 to: "ada@example.com",
507 from,
508 workspace: Some("Flagon, Inc."),
509 joins_existing_account: false,
510 code: "g1t-abcd",
511 proof: None,
512 days: 30,
513 note,
514 }
515 }
516
517 #[test]
518 fn an_invite_links_to_its_page_and_carries_a_note() {
519 let (subject, letter) = invite_letter(&invite(Some("Welcome aboard <3"), None), SITE);
520 assert_eq!(subject, "The g1t team invited you to join Flagon, Inc. on g1t");
521 assert_eq!(letter.action.as_ref().unwrap().1, "https://g1t.sh/invite/g1t-abcd");
522 assert_eq!(letter.quotes, vec![("A note from the g1t team".to_owned(), "Welcome aboard <3".to_owned())]);
523 let (text, html) = render(&letter, SITE);
524 assert!(text.contains("> Welcome aboard <3"));
525 assert!(html.contains("Welcome aboard &lt;3"));
526 assert!(!html.contains("<3"));
527 // No note, no quote; a blank note is no note.
528 assert!(invite_letter(&invite(None, Some("Chase Pierce")), SITE).1.quotes.is_empty());
529 assert!(invite_letter(&invite(Some(" "), Some("Chase Pierce")), SITE).1.quotes.is_empty());
530 assert_eq!(invite_letter(&invite(Some("hi"), Some("Chase Pierce")), SITE).1.quotes[0].0, "A note from Chase Pierce");
531 }
532
533 #[test]
534 fn an_invite_link_carries_the_emails_proof_when_it_has_one() {
535 let proven = InviteEmail { proof: Some("4f9c2a"), ..invite(None, None) };
536 let (_, letter) = invite_letter(&proven, SITE);
537 assert_eq!(letter.action.as_ref().unwrap().1, "https://g1t.sh/invite/g1t-abcd?proof=4f9c2a");
538 // An invite sent before proofs, or for an existing account: the code alone.
539 assert_eq!(invite_link(SITE, "g1t-abcd", None), "https://g1t.sh/invite/g1t-abcd");
540 }
541
542 #[test]
543 fn links_point_at_the_site_they_are_given() {
544 let (_, letter) = invite_letter(&invite(None, None), "http://localhost:8787");
545 assert_eq!(letter.action.as_ref().unwrap().1, "http://localhost:8787/invite/g1t-abcd");
546 let (text, html) = render(&letter, "http://localhost:8787");
547 assert!(html.contains("http://localhost:8787/brand/g1t-logo.png"));
548 assert!(!text.contains("g1t.sh/") && !html.contains("https://g1t.sh"));
549 assert_eq!(bare("https://git.example.com"), "git.example.com");
550 }
551
552 #[test]
553 fn a_confirmation_email_shows_the_code_large_and_the_link_as_the_other_way() {
554 let (subject, letter) = confirmation_letter(Confirming::NewAccount, "ada", "482913", "https://g1t.sh/verify?token=ab12");
555 assert_eq!(subject, "482913 is your g1t confirmation code");
556 assert!(letter.paragraphs[0].starts_with("Welcome to g1t, ada."));
557 assert_eq!(letter.action.as_ref().unwrap().1, "https://g1t.sh/verify?token=ab12");
558 assert!(letter.footer.contains("60 minutes, and only once"));
559 let (text, html) = render(&letter, SITE);
560 // The code comes before the link, and says either one works.
561 let code_at = text.find(" 482913").unwrap();
562 let link_at = text.find("Confirm email: https://g1t.sh/verify?token=ab12").unwrap();
563 assert!(code_at < link_at);
564 assert!(text.contains("Either one works"));
565 assert!(html.contains("font-size:34px"));
566 assert!(html.contains(">482913</p>"));
567 assert!(html.find("482913").unwrap() < html.find("verify?token=ab12").unwrap());
568 let (_, added) = confirmation_letter(Confirming::AddedAddress, "ada", "000001", "x");
569 assert!(added.paragraphs[0].contains("add this address to the g1t account ada"));
570 assert!(added.footer.contains("did not add this address"));
571 }
572
573 /// Writes each email as HTML for a look in a browser:
574 /// `G1T_WRITE_EMAILS=<dir> cargo test -p g1t-identity write_emails`.
575 #[test]
576 fn write_emails() {
577 let Ok(dir) = std::env::var("G1T_WRITE_EMAILS") else { return };
578 let page = |name: &str, subject: &str, letter: &Letter| {
579 let (_, html) = render(letter, SITE);
580 std::fs::write(
581 format!("{dir}/{name}.html"),
582 format!("<!doctype html><meta charset=utf-8><title>{}</title><body style=\"margin:0;background:#fff\">{html}", escape(subject)),
583 )
584 .unwrap();
585 };
586 let (subject, letter) = invite_letter(&InviteEmail {
587 to: "margaret@example.com",
588 from: Some("Chase Pierce"),
589 workspace: Some("Flagon, Inc."),
590 joins_existing_account: false,
591 code: "g1t-k7m2-q9xd-4hpw-abcd-0123-4567-89ef-ghjk",
592 proof: None,
593 days: 30,
594 note: None,
595 }, SITE);
596 page("workspace-invite", &subject, &letter);
597 let (subject, letter) = invite_letter(&InviteEmail {
598 to: "ada@example.com",
599 from: None,
600 workspace: None,
601 joins_existing_account: false,
602 code: "g1t-k7m2-q9xd-4hpw-abcd-0123-4567-89ef-ghjk",
603 proof: None,
604 days: 30,
605 note: Some("We would love to see the compiler."),
606 }, SITE);
607 page("staff-invite", &subject, &letter);
608 let (subject, letter) =
609 confirmation_letter(Confirming::NewAccount, "ada", "482913", "https://g1t.sh/verify?token=4f9c2a7e0b13d5c8");
610 page("confirm-email", &subject, &letter);
611 }
612}