7825097333c3802498219865d911bd14f31568f3
4
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 jcoffey-dev
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44b676c55d |
Name the push verification entry absolutely, from both sides
A JMAP push subscription stays silent until the client echoes back a verification code. When the code arrives with no tab open, the service worker leaves it in the cache for the next tab to collect. Both sides named that entry relatively, and a relative key is resolved against the URL of whoever is asking. The worker lives at <base>/sw.js, so it wrote under <base>/; a tab at /mail/inbox/abc looked under /mail/inbox/. They agreed only when the open page happened to be the root, which is why this survived: the case that works is the one people try first. The failure is quiet in the worst way. A subscription that never gets its code back simply never delivers, which is indistinguishable from push not working at all -- there is no error anywhere to notice. Both sides now build the key from the mount: the worker from the BASE it already derives from its own location, the page through withBase. Found while adding BASE_PATH, where the two disagree at every route rather than only at deep ones; left alone then because it was pre-existing and unrelated to that change. |
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jcoffey-dev
|
93d0a32af2 |
Serve ihasmail from a subpath
`BASE_PATH=/mail` mounts the whole app under a prefix, for a host that is not
ihasmail's alone. Unset -- every deployment that exists -- is the domain root
and is byte-for-byte what it was: the canonical form of the setting is the
empty string, and `""` concatenated onto `/api/health` is `/api/health`.
That choice of canonical form is the whole design. A trailing slash would have
been the obvious alternative, and it fails quietly in exactly one place: at the
root it makes `//api/health`, which is not a path on this host but a
protocol-relative URL to a host called `api`. One call site forgetting to
branch is a request leaving the origin. So the empty string, one leading slash,
no trailing one, worked out once in `scripts/basePath.mjs` -- plain JS, next to
`version.mjs`, because the web build and the server both have to reach the same
answer and two implementations of "what does /mail/ mean" is precisely the bug
where the server serves an app whose script tags point somewhere else.
`/mail`, `mail`, `/mail/` and `//mail//` all mean the same mount; a deployment
should not fail over a trailing slash.
Unlike everything else ihasmail is told, this one cannot wait for the process
to start. The bundle writes its own asset URLs into index.html, so `BASE_PATH`
is read at build time for Vite's `base` as well as at run time for the routes,
and the Dockerfile carries one value into both. Get them out of step and the
page comes up blank with a 404 in a console nobody has open -- so the static
handler, which is reading index.html anyway, checks what it asks for and says
so in the log once per build.
Everything moves together. The API mounts at `${base}/api`; the router is
given the base once, so every `<Route path>` and `<Link href>` stays written
root-absolute and wouter does the rest; `apiFetch` adds the prefix in one place
rather than at forty call sites; the session cookie's Path narrows to the mount
so two instances on one host cannot sign each other out.
Two things need no prefix at all, and it is worth saying why they were not
given one. A manifest's members resolve against the manifest's own address, so
relative URLs there follow the mount with nothing substituted at build time --
which is also why `public/` needed no template step. The service worker is the
same trick: it is served from the mount, so `new URL("./", self.location)`
tells it where that is, and a worker that derives the value cannot disagree
with the page that registered it.
Anything outside the mount is a 404 rather than the app shell, and
`stripBasePath` does not use `startsWith` -- under `/mail` this process shares
a hostname, and answering `/mailbox` with our index would shadow a neighbour
instead of letting it 404 honestly. For the same reason the notification-click
handler now checks the path as well as the origin: `includeUncontrolled` widens
`matchAll` to the whole origin, which off the root would have navigated a
stranger's tab to our inbox.
Inline images in a draft were the one silent trap. They are matched by their
blob URL on the way out, once unanchored and once anchored, and a bare
`/api/blob/` still appears inside `/mail/api/blob/...` -- so one pattern would
have replaced the tail and left `/mail` in front of a `cid:`, and the other
would have missed and sent the message linking to the sender's own webmail.
Both patterns are built from the base now.
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jcoffey-dev
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96bc7b53d7 |
Notifications that arrive when ihasmail is closed
ihasmail's notifications came from EventSource, which lives exactly as
long as a tab does -- so "desktop notifications" has always quietly
meant "while you are looking". That switch is now labelled as much, and
a second one does the thing people assumed the first one did.
Stalwart 0.16 signs Web Push with VAPID (RFC 9749) and can put the
message itself in the payload (draft-ietf-jmap-emailpush). The server
pushes straight to the browser's own push service: ihasmail's server is
not in the delivery path, there is no relay to run, and nothing beyond
the browser vendor's endpoint that Web Push requires of everyone.
Checked against the live 0.16.19 before any of this was written, because
an advertised capability is not a configured one:
- the session publishes a real applicationServerKey, so no key
generation or server configuration is needed
- PushSubscription/get answers an ordinary user rather than refusing
- emailpush is advertised, and its draft defines a filter, an ordered
properties list and an urgency -- so the payload can carry sender and
subject, and the server drops properties from the end when it will
not fit rather than failing the notification
Three things this gets right that are easy to get wrong:
- The verification handshake. A JMAP subscription delivers nothing
until the client echoes back a code the server pushed, and the
service worker cannot answer it -- no credentials in that context.
It forwards the code to a tab, or leaves it in the cache when no tab
was open to forward it to.
- Key encoding. The W3C Push API produces unpadded base64url and
Stalwart 0.16 was fixed to accept exactly that, so nothing here pads
on the way out. The VAPID key needs padding on the way *in* for
atob; getting that backwards fails at subscribe() with an opaque
error, so it lives in one named function with tests.
- Sign-out. A subscription belongs to the account, not the session.
Without tearing it down, a shared machine keeps notifying for a
mailbox nobody is signed into -- which is somebody else's mail.
The mock models the JMAP half, including refusing padded keys and
non-https endpoints, and creating subscriptions *unverified*. Delivery
cannot be mocked -- it runs through the browser vendor's real push
service -- but a mock that marked a subscription verified on creation
would let a client ship without the handshake, and the symptom in
production is "registered, and silent".
Not verified end to end: an actual notification arriving. That needs a
real browser, a real push service and real delivery, so it is live
testing or nothing.
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jcoffey-dev
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645b8b510f |
ihasmail 2.0: rebuild as Stalwart-first JMAP webmail
Replace the FastAPI/HTMX prototype with a Node/Hono session proxy and a React 19/Vite SPA. Mail (conversation view, search operators, labels, sanitised HTML, privacy image proxy, invites, undo send, templates), calendar (month/week/day/agenda, invites, free/busy, categories, context menus), contacts (JSContact, groups, vCard), files, Sieve filter builder (incl. filter-from-message with retroactive apply), vacation, identities with default + Reply-To, PWA/mobile layout, push via SSE, in-memory mock Stalwart for dev, Docker + CI. |