jcoffey-dev
82470e8db0
ihasmail could hand a file to the share sheet as of #306, and was still not in it. Share a photo from the gallery, a link from the browser or a document from a file manager and ihasmail was not among the places it could go, which is the one piece of operating-system integration a mail app is expected to have. A share is a POST that navigates, and there is nothing on this side that can answer one: the app is a client-side router with no endpoint at that address, and the server behind it would need a route that understood the composer. So the service worker intercepts it, takes the form body, puts the files and text in its cache, and redirects to the app -- which finds them on start and opens a draft holding them. The subject is the shared title, the text and the link become the body, and files are attached and begin uploading. Nothing is addressed: a share says what to send, never who to. The body is pushed in above the signature rather than passed to open(), because open() only fits a signature when it is given no body at all -- the obvious version drops the signature from every message that started as a share, and nothing about the draft looks wrong afterwards. Collected on every start rather than when the launch URL says so. A share to a signed-out ihasmail lands on the sign-in page, and there is no account to attach to until it is done, so the payload has to outlive a redirect and a login -- which the query string does not. What that costs is a stash nobody came back for, so it carries a timestamp and expires after ten minutes. `accept` names wildcard families and explicit types and extensions both. A mail client attaches anything, but wildcards are not in the specification and operating systems differ over which form they match on, so the explicit list is what holds if the families are ignored. The cache name the worker and the app have to agree on now has one home on the app side. It was written out twice, and a drift would not fail -- a push verification would simply never complete and a share would arrive at an empty composer. One case is deliberately left to fail loudly: an app still installed whose worker has been cleared away POSTs to the server, which answers 405. A server route would trade a plain error for a silent nothing, and the payload is gone in both -- it only ever existed in that request body. Verified by test, not on a device: Android is the only place this exists at all, and the extension driving Chrome is not connected here. The handoff is pinned from the tab's side against a cache shaped exactly as the worker leaves it, since the two files never see each other.
86 lines
4.6 KiB
JSON
86 lines
4.6 KiB
JSON
{
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"name": "ihasmail",
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"short_name": "ihasmail",
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"description": "Fast, friendly JMAP webmail for Stalwart",
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"_comment": "JSON has no comments, so: every URL below is relative on purpose. Manifest members resolve against the manifest's own address, so these follow BASE_PATH with nothing substituted into them at build time. Root-absolute values pinned the installed app, its scope and its shortcuts to the domain root whatever the mount was.",
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"_comment_id": "There is deliberately no `id`. It is the one member NOT resolved against this file's address -- the spec resolves it against the origin of start_url, so `./`, `mail` and `/mail` all mean the same thing at the domain root and none of them can name a subpath mount. Adding one would therefore break the same thing the note above describes. Worse, the default id IS start_url, which is already mount-correct: writing an id now would give every installed copy a new identity and orphan it as a second app rather than updating it. If one is ever wanted it has to be substituted at build time from BASE_PATH, and the changeover costs everybody their install.",
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"start_url": "mail",
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"scope": "./",
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"categories": ["productivity", "utilities"],
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"_comment_launch": "One window, not one per launch. A `mailto:` link, a manifest shortcut or a notification tapped while ihasmail is already open should arrive in the copy that is running rather than beside it -- two windows on the same inbox disagree about what has been read. `navigate-existing` rather than `focus-existing` because the latter only focuses and leaves the app to handle the target URL through launchQueue, which nothing here consumes: it would swallow the mailto entirely. The navigation goes through the same beforeunload guard as a reload, so an unsent draft still stops it and asks.",
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"launch_handler": {
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"client_mode": "navigate-existing"
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},
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"_comment_share_target": "Being in the operating system's share sheet, which is the other half of the Share this app now offers. `action` is relative like everything else here, so it follows the mount; it has to sit inside `scope`, and `./` covers it. POST with multipart because a share can carry files, and a POST to a page is not something the app can answer -- the service worker intercepts it, puts the payload where a tab can collect it, and redirects. `accept` names wildcard families AND explicit types and extensions on purpose: a mail client attaches anything, but wildcard support is not in the specification and operating systems differ over which form they match on, so the explicit list is what holds if the families are ignored. Android and Chromium only -- iOS does not implement share targets at all.",
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"share_target": {
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"action": "share",
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"method": "POST",
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"enctype": "multipart/form-data",
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"params": {
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"title": "title",
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"text": "text",
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"url": "url",
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"files": [
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{
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"name": "files",
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"accept": [
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"image/*", "video/*", "audio/*", "text/*",
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"application/pdf", "application/zip", "application/json",
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"application/msword", "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
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"application/vnd.ms-excel", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
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"application/vnd.ms-powerpoint", "application/vnd.openxmlformats-officedocument.presentationml.presentation",
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"application/vnd.oasis.opendocument.text", "application/vnd.oasis.opendocument.spreadsheet",
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"message/rfc822", "text/calendar", "text/vcard",
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".pdf", ".zip", ".doc", ".docx", ".xls", ".xlsx", ".ppt", ".pptx",
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".odt", ".ods", ".csv", ".txt", ".md", ".eml", ".ics", ".vcf",
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".jpg", ".jpeg", ".png", ".gif", ".webp", ".heic", ".mp4", ".mp3"
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]
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}
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]
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}
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},
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"protocol_handlers": [
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{
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"protocol": "mailto",
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"url": "mail?mailto=%s"
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}
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],
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"display": "standalone",
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"orientation": "any",
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"background_color": "#ffffff",
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"theme_color": "#0f766e",
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"icons": [
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{
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"src": "img/icon-192.png",
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"sizes": "192x192",
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"type": "image/png"
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},
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{
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"src": "img/icon-512.png",
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"sizes": "512x512",
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"type": "image/png"
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},
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{
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"src": "img/icon-maskable.png",
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"sizes": "192x192",
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"type": "image/png",
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"purpose": "maskable"
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}
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],
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"shortcuts": [
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{
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"name": "Compose",
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"url": "mail?compose=new",
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"description": "Write a new message"
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},
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{
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"name": "Calendar",
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"url": "calendar"
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},
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{
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"name": "Contacts",
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"url": "contacts"
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}
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]
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}
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