# CLAUDE.md This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository. ## What this is decePubClient is a Blazor WebAssembly PWA (.NET 10). It is meant as a Pleroma-FE-like client for **PrivaPub**, the owner's ActivityPub server, whose repo is `thepra/SocialPub`. It is deployed as a static site at https://decepub.thepra.dev, and its API base address is `https://privapub.thepra.dev` (`AppConfiguration:ApiBaseAddress` in `wwwroot/appsettings.json`). It talks to PrivaPub through both of its APIs with one sign-in (see **PrivaPub wiring** below). The feed page has three columns: navigation, the feed with a tab per kind of feed, and a 3D globe that follows the posts in view. Nerd stats sit in tooltips wherever there is data. Development builds point at a local PrivaPub on `http://127.0.0.1:6970` (`wwwroot/appsettings.Development.json`, never published). ## Sibling repo dependency The project references `../SocialPub/PrivaPub.ClientModels/PrivaPub.ClientModels.csproj`, so SocialPub must be checked out next to this repo. CI clones it there. That project supplies: - the shared DTOs; - `Policies` (IsAdmin, IsUser, IsModerator); - the `FieldsNameResource` and `ErrorsResource` localization resources. Before wiring anything to the API, read `../SocialPub/CLAUDE.md`. PrivaPub's route names (`/peasants/...`, `/mouth`, `/anus`, ...) are deliberate. Never "correct" them. The API surface is the Mastodon client API plus PrivaPub's private `/clientapi` and `/api/privapub/v1`. To run against a local PrivaPub: start a mongod, run SocialPub's `PrivaPub` with the Development command in its CLAUDE.md on `127.0.0.1:6970` (`Registrations__Mode=Open` lets `/clientapi/user/signup` create a root), then create personas with `/clientapi/avatar/private/insert`. Federated posts come from SocialPub's pasture (`tools/pasture/run.sh up gts akkoma`, then `tools/pasture/interop.sh gts akkoma`), whose API is `127.0.0.1:6971`. Neither DB-IP nor PrivaPub locate private addresses, so for the globe set `RemoteInstance.Geo` in mongo and `Statistics:Geo:Self` in PrivaPub's configuration. ## Commands ```sh dotnet build decePubClient.csproj # what CI runs (-c Release) on every push to master and on PRs dotnet run # dev server: https://localhost:7046 / http://localhost:5046 dotnet publish decePubClient.csproj -c Release -o publish # static site lands in publish/wwwroot ``` `global.json` pins SDK 10.0.100 with `rollForward: latestFeature`. There is no linter. ## Verifying There is no test project (owner decision 2026-10-17: `tests/e2e` was removed, as was SocialPub's `PrivaPub.Tests`). Don't add one back unless asked. Verify by building, running against a local PrivaPub, and in SocialPub's pasture: ```sh dotnet publish decePubClient.csproj -c Release -p:WasmApplicationEnvironmentName=Pasture -o publish ../SocialPub/tools/pasture/run.sh up gts decepub # serves publish/wwwroot as https://decepub.test (peers/decepub.sh) ``` - Blazor on .NET 10 ignores the `Blazor-Environment` header, so the environment is chosen at publish time: `wwwroot/appsettings.Pasture.json` (API `https://privapub.test`) is published only then, and the deploy fails if it ever ships. - A browser reaches `*.test` through the pasture's Caddy on `127.0.0.1:6443` (Chromium: `--host-resolver-rules="MAP *.test 127.0.0.1:6443"`), and must accept the pasture's CA. ## CSS: Tailwind 4 + daisyUI 5, vendored, offline `Styles/app.css` is compiled into `wwwroot/css/app.css` by the Tailwind CSS standalone binary with the daisyUI plugin. `app.css` is gitignored and regenerated on every build. **Nothing in the build or the CI may download from github.com.** Tools live in the repo, and the CSS build runs without network access. NuGet restore still uses nuget.org. - `tools/tailwind/` holds the pinned tools: - Tailwind 4.3.3 as `tailwindcss-linux-x64.xz`; - daisyUI 5.7.47 (`daisyui.mjs`, `daisyui-theme.mjs`); - daisyUI's component reference, `daisyui-llms.txt`. - `.gitattributes` keeps these files byte-exact. - `tools/tailwind.sh prepare` checks them against the sha256 values pinned in the script, and unpacks the binary into the gitignored `.tools/tailwind/`. It needs `xz`. - Only linux-x64 is vendored. - The script's header explains how to upgrade or add a platform. - The `TailwindCompile` target in the csproj runs it, so `dotnet build` / `publish` are enough, in CI as well. Debug builds use `--optimize`, Release builds `--minify`. Pass `-p:SkipTailwind=true` to skip it. - `IncludeTailwindOutput` adds the generated file to `Content` before static web assets are resolved. Without that, a clean-clone publish would ship `app.css` without its `.gz`/`.br` copies and outside `service-worker-assets.js`. The deploy workflow checks for `css/app.css.gz`. - `bash tools/tailwind.sh watch` rebuilds the CSS live next to `dotnet watch`. - Tailwind scans every file `.gitignore` doesn't exclude (minus `tools/` and `wwwroot/vendor/`), and only generates the classes it finds written out **whole**. Never build a class name by concatenation or interpolation (`"btn-" + size`, `$"btn-{size}"`). Write every variant as a literal, e.g. in a switch arm. Ionicons 4.5 (`wwwroot/vendor/ionicons.min.css`, ``) is loaded as its own stylesheet. ## Theme and neumorphism - `Styles/theme.css` holds two daisyUI themes, `neo-light` (default) and `neo-dark` (`prefersdark`). Every colour is an `hsl()` of `--neo-hue-light` / `--neo-hue-dark` / `--neo-chroma` (0 for the grey themes). - `wwwroot/js/theme.js` sets those variables and `data-theme` on `` from `PageSettings`. It runs in `` from localStorage, so there is no flash before Blazor boots. After that, CascadingState calls it through `AppStatusService.ApplyTheme` whenever the settings change. With `PreferSystemTheming` it leaves `data-theme` off, and the OS decides. - Change the theme flags through `PageSettings.SetDarkMode` / `SetGray` / `SetHue` and `CascadingState.UpdatePageSettings`, which keep the flags consistent: - choosing light or dark leaves system theming; - picking a hue leaves grey. - `AppStatusService.IsDarkTheme()` tells which variant is showing. - Settings → General edits every theme setting. NavMenu's toggle and slider are shortcuts to the dark and hue ones. The other sections of Settings belong to the login or the persona (see **Settings** under PrivaPub wiring). - **The theme is the login's** while `PageSettings.SyncWithLogin` is on (the default; Settings → General turns it off for this device). `CascadingState` takes the login's theme (`ViewUserSettings`; never its language, which would reload the app) at sign-in from the `JwtUser` (`SignedIn`, which Login, Setup and Join call instead of `LoadSession`) and at start-up from `/clientapi/user/settings`, once `savedAt` says a client saved one; while none did, it gives the login this device's. `UpdatePageSettings` saves them to `/clientapi/user/update/settings` 1.5 s after the last change, one save waiting at a time, only when they differ from what the login is known to keep (so taking them never sends them back), with the language as two letters and the icons' hue at 25; a failure is logged, never shown. - `Styles/neo.css` holds the neumorphic layer: - `neo-raised` / `neo-inset` / `neo-flat`, with sizes `neo-2xs` / `neo-xs` / `neo-sm` / `neo-md` (these replace the old `neomorph is-nxsmall` classes); - `neo-gradient(-pressed)` and `neo-hue-track`; - `@utility ` overrides that give btn, input, select, card, … the neo look. daisyUI puts its rules in sublayers of `utilities`, so these overrides beat **every** daisyUI rule. Each override must exclude the daisyUI variants it shouldn't touch, e.g. `:not(:where(.btn-ghost, .btn-link, ...))`, and call sites drop a neo shadow with `shadow-none!`. - Selectors are an inset well; a checked checkbox is filled and raised like a primary button (daisyUI fills one only for a colour variant, and without one drew a tick on nothing), and a checked radio's dot is the primary colour. A file input's own button (Choose File, Browse…) is raised like the app's buttons. - Never write `@utility collapse`. It brings back Tailwind's own `collapse` utility (`visibility: collapse`), and every collapse disappears. ## Phones Below `md` the app is laid out for a phone, and a touch screen gets thumb-sized targets. The rules: - **Width and pointer are separate.** - Layout differences between a phone and a desktop use the width variants at the call site (`max-md:`, `md:`). - How big a thing is to a finger uses the pointer: `Styles/touch.css` under `@media (pointer: coarse)`, and `pointer-coarse:` at a call site. - A mouse matches none of it, so desktop keeps daisyUI's sizes. - A window at most 30rem tall (a phone held sideways) is the `short:` variant. - **`touch.css`** is plain CSS in Tailwind's utilities layer, so like `neo.css` it beats daisyUI's sublayers. It sets daisyUI's own size variables: - buttons, tabs, inputs, selects and file inputs are 44px tall; - extra small buttons and the badges that act are 36px, with a transparent `::after` that reaches 44 (5px around the padding box); - checkboxes and radios are 24px, toggles and range thumbs 28; - field text is 16px, so iOS doesn't zoom into a focused field. Its `touch-target` utility gives a small link or button a 44px hit area. It can't be used on something that clips its own overflow (a `truncate`d name takes `pointer-coarse:py-3.5` instead), nor on a daisyUI tooltip, which draws its arrow with `::after` (NerdTip takes minimum sizes). - **Every target has a 44px hit area on touch,** with 8px between targets in a row (`pointer-coarse:gap-2`). - **Overlays on a phone rise from the bottom.** - `DModal Placement="ResponsiveBottom"` is a sheet below md and a centred dialog from md. Every DModal has a visible close button (`ShowClose`, named by `CloseText`). - `DDropdown SheetOnNarrow` turns its content into a bottom sheet. - `Components/PhoneSheet.razor` shows what opens in place on a desktop (the composer, a reply, a quote, an edit) as a sheet on a phone. - All are capped by `dvh`, and the app itself is `h-dvh`. - **The Back button closes the newest open overlay** instead of leaving the page. - Overlays register through `IDOverlayHost` (`Components/Daisy`, cascaded from `MainLayout`): - `DModal` and `DDropdown` through the cascade; - the nav menu, `PhoneSheet` and the full-screen globe through `Services/OverlayService.cs`. - `main.js` marks a real Back press (a capture-phase `popstate`), since Blazor can't tell it from the app's own navigation, which closes every overlay and goes on. - No history entries are pushed. - **What can't be undone asks first** through `Services/ConfirmService.cs` (`Ask`, shown by `ConfirmHost` in `MainLayout`): deleting a post, taking it off a wall, muting, blocking, removing a follower, revoking a quote, leaving a group, dropping a scheduled post, signing out, and for an administrator deleting an announcement and removing the server's thumbnail. - **On a touch screen:** - a tap on a post opens its thread (`main.js`, `data-thread` on the card, its `data-thread-link`), and cards are pinned to the globe with a mouse only; - a tap on a nerd-stats trigger opens its rows in a sheet (`NerdTip`, `AppStatusService.CanHover`); - pictures open in `Components/MediaViewer.razor`. - **The feed on a phone:** - a card's actions are five equal cells (Reply, Boost, Favourite, React, More). Bookmark, a downvote, the thread and the nerd stats' Details are in More, and the author's picture is in the header; - a new post starts from a floating button; - the globe's banner opens full screen, and a phone held sideways opens it full screen from the tabs; - the feed tabs show their names and fade at the edge where more wait (`edge-fade-x`, `data-scroll-x`). ## daisyUI Blazor components (`Components/Daisy/`) Every daisyUI component has a `D`-prefixed wrapper (`DButton`, `DModal`, `DDropdown`, `DInput`, ...), grouped by daisyUI's categories into folders whose namespaces are imported in `_Imports.razor`. `/styleguide` (not linked) renders all of them in every theme. When you add or change one: - Map each enum to its classes in a switch with whole literal class names. - Value-holding fields derive from `DInputBase`, Blazor's `InputBase`, so `@bind-Value` and EditForm validation work. Everything else derives from `DComponentBase` (`Class`, pass-through attributes, `Cx(...)`). - Open/active state lives in C# (`@bind-IsOpen`, `@bind-Active`) and is rendered with daisyUI's `*-open` modifier classes. No JS interop. - What daisyUI does with scripts has a script-free equivalent here: `DCheckbox.Indeterminate` renders `aria-checked="mixed"`, and `DCarousel`'s navigation links to the slides' ids, which Blazor scrolls to. - `DCalendar` is the one exception: it wraps the vendored Cally web component (`wwwroot/vendor/cally.js`). - Images and links in `/styleguide` stay local (`wwwroot/imgs/styleguide/`). - Don't name a parameter after an HTML attribute (`Title`, `Style`, `Id`, `Label`, ...). Blazor matches attributes to parameters without regard to case, so the parameter would swallow the attribute. - Components don't use `Localizer` or `CascadingState`; their user-visible strings are parameters. ## Architecture **Startup (`Program.cs`).** - DI registration happens here. - The named `HttpClient` "default" uses `ApiBaseAddress` as its base address. It falls back to the host's base address when that setting is empty. - `SetDefaultCulture()` (`Extensions/ExtensionMethods.cs`) runs before the app starts. It picks the culture from the saved `PublicCacheData`, or on a first visit from the browser language. - Only English (`en-GB`) and Italian (`it-IT`) have resources; any other language gets English. - Settings → General changes the language, saves it, and reloads the app. **`LayerComponents/CascadingState.razor`** wraps the router in `App.razor`. It is the app-wide state object. It handles: - `PublicCacheData` (page settings: theme colours, dark/light/system theming, language), persisted in localStorage; - the theme, applied through `AppStatusService.ApplyTheme` (`wwwroot/js/theme.js`); - `IsOnline` / `IsOffline`, polled every 10 seconds; - the session: `IsSignedIn`, `Personas` (the root's), `PersonaId` and `Persona` (its Mastodon `Account`), with `LoadSession`, `SwitchPersona` and `SignOut`. A persona change re-renders every subscriber; pages compare `PersonaId` and reload what belongs to the persona. The JWT is renewed hourly when needed; - `ProcessError` / `ProcessWarning`, which log through `ILoggingService` and show a toast; - `LogFromJs`, which JS calls back into through a `DotNetObjectReference`. **Components and pages** inherit `LocalizableComponentBase`, the equivalent of b2b.next's `WidmannComponentBase`. It supplies: - `CascadingState`, `Localizer`, `Navigation` and `Toast`; - `IsLoading`, which starts true, and `IsDefaultDisabled`; - `AfterRenderAsyncJobs`, run once after the next render; - `WhenOnline` / `StartOnlinePolling`. Never redeclare the base's members in a component. **UI feedback.** - `Services/ToastService.cs` is the snackbar: the SUtility extensions `AddResponseError(WebResult)` (silent on 410/cancelled; connectivity failures show as warnings), `AddResponseError(string)`, `AddResponseSuccess` (closes after 5 s), `AddWarning` and `AddException`. `Components/ToastHost.razor`, placed in `MainLayout`, shows the messages. - `Components/ErrorViewer.razor` shows in-page errors: the cascading `EditContext`'s validation messages, `AdditionalError` and `AdditionalErrors`. - `ConfirmService` asks before what can't be undone (see **Phones**). **HTTP (`Services/IHttpService.cs`).** - Routes are constants in `Models/APIs.cs` (b2b.next naming: `GET_`/`POST_`/`DELETE_`, `_M_` for routes built from parameters), relative to `ApiBaseAddress`. - The route picks the credentials: `clientapi/` sends the root's JWT, `api/` the current persona's Mastodon token (exchanged when missing, exchanged once more and retried when PrivaPub refuses it), `oauth/` nothing. - It also picks the JSON: `SUtility.MastodonSerializer` (snake_case, `MastodonJsonContext`) for `api/` and `oauth/`, `SUtility.DefaultSerializer` (camelCase, enums by name like PrivaPub, `ClientJsonContext`) for `clientapi/`. A payload can be an object (JSON), name/value pairs (a form) or a `Func` (multipart), built once per attempt. - Auth levels: `Get` / `Post` / `Put` / `Patch` / `Delete` need credentials and end the session when PrivaPub refuses them; `GetAnon` adds them when there are some; `*TotallyAnon` send none (the login and the password recovery must not carry a JWT: PrivaPub redirects them). - `retryOnError` backoff: 1, 2, 4, 8, 16, 29 s, then 60 s, for at most 10 minutes. - Each request has its own timeout (`Measure`): 100 s, or 10 minutes for a multipart body (an upload); the `HttpClient`'s own is off. - Failures never throw. They come back as responses carrying an invalid `WebResult`, with an `ErrorCode` from `Models/FailureCodes.cs`; a cancelled request comes back as HTTP 410. - Read failures with `ReadWebResult` (it understands `WebResult`, validation ProblemDetails and Mastodon's `{"error": ...}`) and bodies with `DefaultReadFromJsonAsync` / `MastodonReadFromJsonAsync`; a body that doesn't fit comes back as the default and is written to the browser console. `PageCursors()` reads `max_id`/`min_id` from `Link`. - Every request PrivaPub answers is recorded in `RequestStats` (method, route template, status, duration, size, rate limit headers; never a body or a token), for the nerd stats. - PrivaPub's `WebResult` gets `IsInvalid` from `Extensions/WebResultExtensions.cs`, a C# 14 extension property. **PrivaPub wiring.** - **One sign-in** (`Services/AuthService.cs`, `Pages/Login.razor`): the root signs in on `/clientapi/user/login`, then each persona the client uses gets its own Mastodon token in exchange for the JWT (PrivaPub's `PersonaExchange`, RFC 8693 on `/oauth/token`, first-party client id `AppConfiguration:ClientId`). `AuthData` keeps the JWT and the persona tokens; logout revokes every persona token, ends this device's session (`/clientapi/user/logout`), then forgets the session. - **Sessions:** "Sign out everywhere" (`AuthService.LogoutEverywhere`, `/clientapi/user/logout/everywhere`) ends every session of the login, this one too, and PrivaPub revokes every persona's token with them, so the client only forgets its own and signs out. A password change, and turning two-factor sign-in on, end every other session and revoke every persona token, this device's too: `AuthService.ChangePassword` and `TotpEnable` keep the new `JwtUser` PrivaPub answers with (`ContinueSession`), drop the stored persona tokens and exchange one for the current persona at once (the others when next used), so the device stays signed in. - **Two-factor sign-in** (TOTP, `/clientapi/user/totp/*`): with it on, a right password is answered with a 428 (`AuthService.NeedsOneTimeCode`). Login keeps the name and the password in the form, out of sight, and sends it again with `LoginForm.OneTimeCode`: the authenticator app's six digits (`DOtp`, `data-login-code`) or, after "Use a recovery code instead", a recovery code like `abcde-fghjk` (a text field, `data-login-recovery`). A wrong code is a 400, like a wrong password, with PrivaPub's message. It is turned on and off in Settings (`TotpEditor`, see **Settings**). - **The ways in** (sign-up is closed on PrivaPub; owner decision 2026-10-16): - **Setup** (`Pages/Setup.razor` at `/setup`): while PrivaPub has no administrator (`/clientapi/user/setup`), the first login is made there, first come, first served, with its first persona. It becomes the administrator, and setup closes for good. Login offers it while it waits. - **Invitations** (`Pages/Join.razor` at `/join?code=`): a group's invitation makes a login whose first persona joins the group (`/clientapi/user/invitation/signup`). Login links there, and a group's page shows the link with its code. - Both sign in at once like Login (`AuthService.SetUp` / `Join`, sent with no credentials). A login without a persona is sent from Login to Settings to make one. - **A forgotten password** (`Pages/PasswordRecovery.razor` at `/password-recovery`, linked from Login): the login's name or its address asks for a link (`/clientapi/user/recover/password`), and the page shows PrivaPub's answer, the same sentence for everyone, so it never tells whether a login or an address exists. PrivaPub mails only a verified address. The link comes back as `/password-recovery?rc=`: the page keeps the code, takes it out of the address bar and the history at once (`replace`), checks it (`/recover/valid`, the code as a JSON string), and sets the new password with it (`/recover/update/password`), which ends every session of the login; then the reader signs in. All of it goes with no credentials. - **Services** (`Services/`): `TimelineService` (every feed as `FeedPage`s of `FeedPost`s, paged by `max_id`/`min_id`; circles are read as ids from `/clientapi` and hydrated through `/api/v1/statuses?id[]=`; located posts come from `/clientapi/post/nearby` and have no Mastodon actions), `StatusService` (publish, favourite, boost, bookmark, delete, threads, mute, block, poll votes, downvotes, who may quote the persona's posts and revoking a quote of one, emoji reactions through Pleroma's `/api/v1/pleroma/statuses/:id/reactions`, joining and leaving remote events through `/api/privapub/v1/statuses/:id/join|leave`; located and group posts go through `/clientapi/post/insert`, and a located post's author deletes it through `/clientapi/post/delete`, its card's one action), `AccountService` (profiles, relationships, follow, block, mute, follow requests, the persona's followers and following and removing a follower, `/api/v2/search`, whose handles and URLs PrivaPub resolves), `ListService` (the persona's lists and their members; members are only accounts it follows, found with `accounts/search?following=true`), `FilterService` (the persona's v2 filters, their keywords and filtered posts), `DiscoveryService` (hashtags and following them, trends, the directory), `PortabilityService` (Mastodon's CSV exports and imports), `AdminService` (`/clientapi/moderator`, the staff's log among it, and `/clientapi/admin`'s blocks, statistics and backups), `InstanceAdminService` (the server's own settings, thumbnail, announcements and relays: PrivaPub's `InstanceAdminController`), `AboutService` (what the server says of itself to anyone: the instance API, its documents and published domain blocks, never with credentials), `AnnouncementService` (`/api/v1/announcements`: dismissing and reacting), `MediaService` (uploads, and deleting those no post holds), `GroupService`, `InstanceService` and `ProvenanceService`. - **Reactions and votes are public** (owner decision, PrivaPub's ROADMAP): before a persona's first reaction, poll vote or downvote, `PublicNoticeService` asks it once (`PublicNoticeHost` in `MainLayout`) and remembers the persona in localStorage (`PublicActionNotices`). Anything else that makes a persona's act visible to others gets the same notice, with its own `PublicAct`: joining an event (owner decision 2026-10-05) is asked once more, since the event's server shows who takes part. An event card shows the persona's participation (`privapub.event.participation`: pending, accepted, rejected) with Join or Leave, except for events by invitation or taken on another site (`join_mode`). - **What a card shows of other platforms:** custom emoji (`Helpers/CustomEmojis.cs`: a post's or account's `:shortcode:` in its text, name, warning, bio and fields, as the picture the server listed, never inside a tag), a threadiverse post's downvotes next to its favourites with the persona's own as a toggle (`data-downvote`, in More on a phone as `data-downvote-phone`; `StatusAction.Downvote`/`Undownvote`, PrivaPub's `/statuses/:id/downvote|undownvote`, answered with the post, its `privapub.votes.downvoted` set and its favourite dropped). PrivaPub sends votes on every post, so the card offers the toggle where they mean something (`Content.CanDownvote`: a threadiverse server's post, a Page, or one with downvotes; never the persona's own). It also shows blurhash placeholders until a picture loads (`wwwroot/js/blurhash.js` paints any `[data-blurhash]`: a picture's until it loads, again when its source changes, and for good behind the sensitive-media button), a picture's focal point (`object-position`), and an event's online link, participants and status. A picture, video or sound that fails to load says "Media unavailable" with "Open original" (`data-media-unavailable`), and a gifv plays only on a tap under `prefers-reduced-motion`. - **About** (`Pages/About.razor` at `/about`, no sign-in, `data-about`; linked from NavMenu as `data-nav-about` and from Login as `data-about-offer`): the server's name (`data-about-title`), short description and thumbnail, its long description (`data-about-description`, `/api/v1/instance/extended_description`), contact (`data-about-contact`), rules (`data-about-rules`, `data-about-rule`), privacy policy (`data-about-privacy`), terms of service (`data-about-terms`, none while PrivaPub answers 404) and the domain blocks the administrator published (`data-about-blocks`, `data-about-block`, an obfuscated one partly starred as PrivaPub gives it). The documents are PrivaPub's sanitized HTML in `post-content doc-content` (`Styles/feed.css` spaces their headings). Login's heading names the server (`data-login-title`, `/api/v2/instance` read without credentials and kept for the session). - **Profiles and search** (`Pages/Profile.razor` at `/account/{id}`, `Pages/Search.razor` at `/search?q=`): a card's author and a notification's account open the profile in the app; "Open original" is the only way to the remote site. A profile shows the posts the account pins above its posts (`pinned=true`: what an account elsewhere features); the persona pins and unpins its own public and unlisted posts from the card's menu. An account that moved says where to (`Account.Moved`, which PrivaPub fills once the new account names the old one), linking the new account's profile. Another's profile and posts can be reported (`Components/ReportDialog.razor`, `/api/v1/reports`): a category, words, and for a remote account a copy to its server, which PrivaPub sends from its own actor, never naming the persona. A violation (`ReportCategory.Violation`, offered while the server has rules) ticks the server's rules it breaks (`/api/v1/instance/rules`, sent as `rule_ids`; `data-report-rules`, a checkbox `data-report-rule="{id}"` each). Who liked or boosted a post opens from its card's menu (`Components/InteractedByDialog.razor`). On the persona's own profile its counts are buttons (`data-profile-following`, `data-profile-followers`) opening the accounts it follows and its followers (`Components/AccountListDialog.razor`, 40 a page by the Link header): PrivaPub lists them to the persona alone (`hide_collections`), so another profile keeps plain counts. A follower is removed there (`remove_from_followers`, `data-follower-remove`, asked first). The follow requests waiting for the persona show above its posts (`Components/FollowRequestsPanel.razor`, `data-follow-request`, accepted or refused; hidden while none waits), and the Notifications tab opens the same panel in a sheet while some wait (`data-follow-requests-open`). - **Walls** (Smithereen's, FEP-400e): a post written on someone's wall says whose (`privapub.wall`, `data-wall`, linking that profile); one written on the persona's own wall is taken off from the card's menu (`DELETE` on the status, which PrivaPub turns into a `Remove` that Smithereen takes for a deletion). Only the persona's followers may write there. A card in a fixed-height flex column with `overflow-hidden` needs `flex-none`, or it collapses to nothing. - **Groups** (`Pages/Groups.razor` at `/groups`): the persona's communities and circles (`GroupService`, `/clientapi/group`): made (a circle unless it is a community, with an invitation code and an optional password), joined by invitation and left; the ones it runs edited, their invitation shown, the requests to join let in or declined, members taken out. Only a group's owner and moderators see who is in it. - **Lists** (`Pages/Lists.razor` at `/lists`): made, renamed, given a replies policy and made exclusive (their members leave the home feed) there, filled from the accounts the persona follows; a followed account's profile has a Lists menu too. A list is read as the feed's Lists tab (`FeedFilter.ListId`). Lists never leave PrivaPub. - **Filters** (`Pages/Filters.razor` at `/filters`, linked from Settings): PrivaPub marks every status with the filters it matches (`Status.Filtered`), whatever their context; a page tells each card where it is (`Content.FilterIn`: home and lists, notifications, public feeds, threads around the opened post, profiles; none for favourites, bookmarks, conversations and search), and the card leaves the post out (hide), folds it behind the filter's title (warn) or blurs its media (blur). Another's post goes into a filter from its card's menu ("Filter this post", `data-filter-post`, `Components/FilterPostDialog.razor`: `POST /api/v2/filters/:id/statuses`, a filter that holds it already says so), and the card reads the post again so the filter applies at once. On /filters the posts a filter holds are read by id when it opens (`TimelineService.Read`, `/api/v1/statuses?id[]=`) and show their author and words, linking their thread (`data-filter-status`), or say "Post no longer available" (`data-filter-status-missing`). - **Articles** fold in a feed (`Content.IsFoldedArticle`): an Article or a Page with its title, or a titled post longer than a few paragraphs (WriteFreely sends Notes with a name), shows its cover, its excerpt and a Read button; the post opened in its thread shows whole. - **The composer** (`Components/Composer.razor`) writes a post, a reply (`InReplyTo`), a quote (`Quoting`, offered on a card when the server says the persona may quote it) or an edit of the persona's own post (`Editing`); a post can hold a poll instead of media. - **Media are uploaded as soon as they are picked** (`Services/MediaService.cs`, `Models/UploadMedia.cs`): - each is streamed from the browser's file, and only a 320 px thumbnail (`RequestImageFileAsync`) is kept to show it; - each shows its state (`data-upload-state`: uploading, processing, ready, or failed with Retry); - audio and video PrivaPub answers 202 for are followed (`GET /api/v1/media/:id`, 206 until ready); - the ids are kept, so a post that fails never uploads its media again; - the types and sizes accepted are PrivaPub's own (`/api/v2/instance`, `MediaService.Limits`); - a description changed after the upload is PUT before the post; - a file taken out before posting is deleted from PrivaPub (`MediaService.Discard`, `DELETE /api/v1/media/:id`, `data-upload-remove`), unless a post holds it already (an edit's own media); a failure is only logged. - **Alt text:** publishing a picture without a description asks once (`data-alt-reminder`, "Publish anyway"), unless the reader turned `PageSettings.RemindAltText` off in Settings → General. - **Edits send the whole post, as Mastodon wants it:** its words and warning from `/source`, its own language and sensitive flag, the media it keeps or adds (`media_ids`; removing them all is `[]`), and the descriptions changed (`media_attributes`). Its visibility and poll stay. - A new post's media are sensitive when the persona's "always mark media as sensitive" (`source.sensitive`) says so. A mention or hashtag being written at the end of the words is offered what PrivaPub already knows (`/api/v2/search`, never resolving), once typing pauses. An edited post's card says so, and its versions open from there (`/statuses/:id/history`, newest first; PrivaPub keeps a remote post's earlier versions from its edits and from Pleroma's `formerRepresentations`). - **Threads** (`Pages/Thread.razor` at `/expand/{id}`): opening a remote thread makes PrivaPub read its replies from their servers (its FEP-7888 `context`, else `replies`), so the page reads the thread again after 4 and 15 seconds and adds what was found, in the thread's order. - **Interaction policies** (GoToSocial's, and FEP-5624's `canReply` on a PeerTube video whose comments are moderated): a reply or boost whose target's author must approve it shows so on its card (`privapub.approval`: pending, then nothing once approved, or rejected); one the policy shuts out is refused by PrivaPub (422) and shown as an error. - **Quotes of the persona's posts** (FEP-044f): its own public and unlisted posts are given who may quote them from the card's menu ("Who may quote it", `data-quote-policy` holding the current one; `Components/QuotePolicyDialog.razor`, `data-quote-policy-choice`: anyone, its followers or nobody, `PUT /api/v1/statuses/:id/interaction_policy` with `quote_approval_policy`; the policy is read back from `quote_approval.automatic`, `StatusService.QuotePolicyOf`). A post by someone else quoting one of them has "Revoke quote" in its menu (`data-revoke-quote`, asked first; `POST /api/v1/statuses/:quoted/quotes/:quoting/revoke`, answered with the quoting post, its quote revoked). - **Settings** (`Pages/Settings.razor`, `Components/Settings/`): the login itself (`AccountEditor`: its email address (`/clientapi/user/account`), set only with the password and a 6-digit code mailed to the new address (`/user/email`, then `/email/verify` through `DOtp`; the old `/user/update` is refused), shown verified or not and with an address waiting for its code, and removed with the password (`/email/remove`); a wrong password is PrivaPub's 403, read as such; its password changed; its two-factor sign-in (`TotpEditor`, a block of AccountEditor that reads the login itself: turned on with the password (`/totp/setup`), which shows the secret as a QR image, as selectable text and as an `otpauth://` link an authenticator app opens, then the app's first code (`/totp/enable`, a 409 once the hour-long setup expired), after which the ten recovery codes are shown once, with Copy (`AppStatusService.CopyText`) and "I saved them"; on, it shows how many recovery codes are left, warns from three down, and is turned off, asked first, with the password and a code from the app or a recovery code (`/totp/disable`)); every session of it ended ("Sign out everywhere", see **One sign-in**); or the whole of it deleted, every persona with it, through `/clientapi/user/update/password` and `/clientapi/user/delete`; the client then signs out), the persona's profile (`ProfileEditor`: `update_credentials` as multipart, its words as written from `Account.Source`, pictures (streamed from the file, and removed with `DELETE /api/v1/profile/avatar|header`), fields, locked, bot, discoverable, indexable and posting defaults; the composer starts a new post at its default visibility), its mutes, blocks and blocked servers (`MutesAndBlocks`), and `DataTransfer`: follows, lists, blocks, mutes, blocked servers and bookmarks exported and imported as the CSV files Mastodon writes, so a persona moves between servers. An import resolves each row through PrivaPub and acts one row at a time; it can be stopped. Above it, `PersonaArchivePanel` (`ArchiveService`, `/clientapi/persona/{id}/archive`; owner decision 2026-10-07): the persona's whole archive made on PrivaPub in Mastodon's layout and downloaded through a link; and an archive (its own, or Mastodon's) uploaded in pieces by `js/transfer.js` and imported into it, the parts chosen (likes, located and scheduled posts off unless ticked), with progress, a report and Stop. Imported posts are delivered to no one. - **Administration** (`Pages/Administration.razor`, `Components/Admin/`): each section is a `DCollapse` marked `data-admin-section`, and its panel loads when the page opens. Moderators see Reports (`reports`) and the Moderation log (`log`); administrators also see Instance (`instance`), Rules (`rules`), Announcements (`announcements`), Blocked servers (`blocks`), Relays (`relays`), Media limits (`media`), Statistics (`statistics`) and Backups (`backups`). PrivaPub checks the role on every call (moderators: `/clientapi/moderator`, administrators: `/clientapi/admin`, checked against its database too). Users & personas come with R6, custom emoji with R7: until then they have no section. - **The settings save whole.** `POST /clientapi/admin/settings` replaces everything `ServerSettingsForm` carries (a rule left out is removed), so Instance, Rules and Media limits each save through `InstanceAdminService.SaveSettings`: it reads the settings PrivaPub has now, builds the form from them (`FormOf`: the rules not deleted, in order, the media overrides, every text), lets the panel set the fields the administrator changed there (the others keep what PrivaPub has, whoever saved it meanwhile), posts the whole form, and the panel shows what PrivaPub answers. A save also makes `AboutService` read the instance again. - **Instance** (`InstancePanel`, `data-instance`): the server's name (`data-instance-title`), short description (`data-instance-short-description`), Markdown description (`data-instance-description`), contact address (`data-instance-email`) and contact persona (`data-instance-contact`, removed with `data-instance-contact-remove`; picked from `data-instance-contact-option` buttons: the administrator's own personas, or this server's accounts as `data-instance-contact-search` finds them through `/api/v2/search`, a local account's `acct` having no host), privacy policy (`data-instance-privacy`), terms (`data-instance-terms`, their date `data-instance-terms-date`), and whether the weekly activity is published (`data-instance-publish-activity`, off by default, with why). Registrations are the configuration's and only shown (`data-instance-registrations`). `data-instance-save`, `data-instance-reset`. The thumbnail (`data-instance-thumbnail`, a file input; `data-instance-thumbnail-image`, `data-instance-thumbnail-remove`, asked first) is saved as soon as it is picked, streamed from the file as multipart `file`. - **Rules** (`RulesPanel`, `data-rules`): one row a rule (`data-rule="{position}"`, `data-rule-id`, its `data-rule-text` and `data-rule-hint`, `data-rule-up`, `data-rule-down`, `data-rule-delete`), `data-rule-add`, `data-rule-save`, `data-rule-reset`. A removed rule is kept (old reports name it) and listed greyed (`data-rule-deleted="{id}"`); `data-rule-restore` lists it again with its id. - **Announcements** (`AnnouncementsPanel`, `data-announcements`): each (`data-announcement="{id}"`, `data-announcement-state` shown, ended or draft) with its HTML, times, `data-announcement-reads` and reactions; `data-announcement-new` and `data-announcement-edit` open `data-announcement-dialog` (`data-announcement-text`, `-starts`, `-ends` as datetime-local in the reader's time, `-all-day`, `-published`, `-save`, `-cancel`); `data-announcement-delete` asks first. - **Blocked servers** (`ServerBlocksPanel`, `data-server-blocks`): a block is published on About and `/api/v1/instance/domain_blocks` only when asked (`data-server-block-published`; `data-server-block-obfuscate` stars part of its name), since that tells the blocked server and everyone; `data-server-block-edit` fills the form with a block, since blocking a server again changes its block. `data-server-block-save`. - **Relays** (`RelaysPanel`, `data-relays`): each (`data-relay="{address}"`, `data-relay-state`, `data-relay-source` configuration or settings; `data-relay-remove` for the settings' ones: a configured one is removed only from `Federation:Relays`, and PrivaPub answers 409), added by `data-relay-address` and `data-relay-add`. PrivaPub answers 202 and subscribes in the background, so the panel reads the list again after 4 and 15 seconds. - **Media limits** (`MediaLimitsPanel`, `data-media-limits`): `data-media-limit="quota|image|video|seconds"` rows, inputs `data-media-quota`, `-image`, `-video` (megabytes) and `-seconds`, empty for the configured value, beside the configured and the effective values (`data-media-effective`) and the hard caps as maxima; `data-media-save`, `data-media-reset`, `data-media-use-configured`. What was set stays to the byte while its megabytes are not changed. - **Moderation log** (`ModerationLogPanel`, `data-log`, `/clientapi/moderator/log`): newest first, 50 at a time (`data-log-more` asks for those before `Next`), each entry (`data-log-entry="{id}"`, `data-log-action`) with who (`data-log-by`: you, a login name to administrators, `cli`, or none), what, to what (`data-log-target`) and its note (`data-log-note`). `data-log-reload`. - **Reports** (`ReportsPanel`): a violation's rules (`data-report-rules`, `data-report-rule-id`) as PrivaPub keeps their texts, a removed rule's too. - **Statistics** (`Components/Admin/StatisticsPanel.razor`, `/clientapi/admin/statistics`, typed in ClientModels' `Admin/ViewStatistics.cs`): the period's overview, the servers (by traffic, failures, latency or name), the crawler, the ledger's events and the server's own days. Counted per server, never per account. - A server's name opens `HostDetailDialog` (`data-statistics-host-open`, `/hosts/{host}?days=`): what it says of itself as nerd rows by their field names, its days with the main counters (received, in, out and failures, summed from the ledger's `channel:…:…:outcome` keys like the servers table; `live` for a day not rolled up yet), its last events, and "Describe again" (`data-host-describe`, `POST /hosts/{host}/describe`, a queued job PrivaPub answers 202). - Events (`data-statistics-events`, `EventsTable`): by server, channel and outcome as the ledger keys them, 100 at a time, and "Load more" asks for those `before` the last one's time. - The server's days (`data-statistics-server`, `/server?days=`): its client API's requests by status class, the documents it served, and its ledger written, dropped and failed. - **Backups** (`Components/Admin/BackupsPanel.razor`, `/clientapi/admin/backups`; owner decision 2026-10-07): the server's backups (nightly, before each deploy, made here, uploaded), with what runs and the last restore's report. - A download asks for the password and gives a link good for ten minutes, a plain anchor, so the browser saves the tar to disk. - An upload never passes through .NET's memory: `wwwroot/js/transfer.js` PUTs `file.slice` pieces at the offset PrivaPub has, and carries on from what PrivaPub says after a refused or lost piece. - A restore asks for the password and the server's host typed out, and says what it means. PrivaPub stops, restores as it starts again and ends every session, so the page shows it restarting until the ended session sends it to sign in. - **Notification policy** (`Components/Settings/NotificationPolicyEditor.razor`, in Settings and at `/notifications/filtered`): what notifications from people the persona does not follow, people who do not follow it, new accounts, private mentions it did not ask for and limited accounts become (accept, filter, drop; `/api/v2/notifications/policy`), and the filtered ones, one request per account, let in (with that account from then on) or dismissed. The Notifications tab links there while requests wait. A notification is dismissed from its line (`data-notification-dismiss`, `TimelineService.DismissNotification`: `/api/v2/notifications/:group_key/dismiss`, its whole group, `ungrouped-{id}` for one alone), and the page takes that item out (`Content.OnDismissed`). - **Scheduled posts** (`Pages/Scheduled.razor` at `/scheduled`): the composer's clock button gives a Mastodon API post a time (`scheduled_at`, at least five minutes ahead; located and group posts have none); the page moves or drops them. - **Explore** (`Pages/Explore.razor` at `/explore`): trending hashtags, posts and links (PrivaPub's, from public posts it holds), the directory, and the hashtags the persona follows. A hashtag's feed tab follows it too. - **Mastodon DTOs** are client-side, in `Models/Mastodon/` (snake_case). `/clientapi` DTOs come from `PrivaPub.ClientModels`. - **Where a post is** (`InstanceService.Locate`, `Models/FeedPost.cs`): its own place (Pixelfed's, `privapub.place`), its event's venue, the reader for a located post, its author's server (to 0.1°, or a point in its country from `Helpers/CountryPoints.cs` when DB-IP located it only to a country), or, for a CDN-fronted server, its CDN's group (`LocationSource.Cdn`: no point, a `CdnKey` and the place `Before` the CDN). Server descriptions are cached a day in localStorage (`ServerInfos`); a server's weekly history (`/instances/:host/history`) and a CDN's page (`/cdns/:key`) are read on the first hover and kept for the session. PrivaPub's own host is the signed-in persona's account host, since the API may be reached under another name. - **The feed page** (`Pages/Index.razor`): `FeedTabs`, `Content` (the card, which does its own actions), `Composer`, `GlobePanel`. Leaving it keeps the feed in `Services/FeedMemory.cs` (its posts, waiting posts, cursors and scroll, ten minutes, for the same feed of the same persona), so coming back from a thread or a profile shows it again at once without reading it anew. Older pages load as the end comes near (`wwwroot/js/feed.js`). Newer ones come through PrivaPub's streaming API (`Services/StreamingService.cs`: one WebSocket, the persona's token as its protocol, never in a URL) for home, lists, local, federated, hashtags and notifications, and wait behind a "new" button; a deletion or an edit it tells applies at once. Other feeds, and any feed while the stream is down, are polled every 45 s while visible. - **Announcements** (`Components/AnnouncementsBanner.razor`, above the tabs, `data-announcement-banner`): the ones shown now that the persona has not dismissed, one at a time (`data-announcement-previous`, `-next`, `-position`), dismissed (`data-announcement-dismiss`, `POST /api/v1/announcements/:id/dismiss`) and reacted to (`data-announcement-reaction="{emoji}"` toggles the persona's own, `data-announcement-react` offers more, `data-announcement-react-emoji`; `PUT`/`DELETE /api/v1/announcements/:id/reactions/:name`, then read again). They come live on the user stream (`announcement`, `announcement.reaction`, `announcement.delete`): `StreamingService.HearAnnouncements` keeps it subscribed whatever feed is followed (and opens the socket for it alone on a polled feed), and raises what it tells as `Announced`; the user stream's posts and notifications are the feed's only while the feed followed is the user stream itself. The banner renders itself and never touches the feed's cards. - **At volume:** the list is a `` (only the cards near the view are rendered), and a card re-renders only when its own events run or its render key changes (`Content.RenderKey`: the post, its status, notification, conversation, place, grouping, where it is shown, the persona and the connection). Anything that changes what a card shows from outside it must replace one of those objects or be added to the key; mutating one in place leaves the card as it was. Without these a feed took seven minutes to reach a thousand cards and held 900 MB at two thousand. - **The globe** (`wwwroot/js/globe.js`, an ES module imported by `GlobePanel`) runs on globe.gl, vendored in `wwwroot/vendor/globe/` with its textures and `countries.json` (`SOURCES.md` has versions, licences and hashes; the service worker never precaches it). It looks at the spherical mean of the located posts in view, pulses and draws an arc to a hovered post, honours `prefers-reduced-motion`, and draws only while something moves (idle, it costs no GPU time; `wake()` before anything that animates). - **Map.** Each pixel computes its own map coordinates from its point on the sphere (`sharpen`), so the poles don't pinch; the maps wrap horizontally and get 8× anisotropic filtering (`keepSharp`). The day texture is NASA's, its seam repaired by `tools/globe/prepare-day-texture.py` (dev-only, needs Pillow). - **Sun.** `wwwroot/js/sun.js` (pure functions of a date: the subsolar point, Earth–Sun distance, seasons, a place's elevation, phase of the day, solar time and day length) lights the globe in the shader: the day map shaded by the Sun's height and distance, city lights on the night side, a twilight blend between. It shows now (refreshed every 30 s), or the moment of the hovered, focused or pinned post (`data-post-at` on the card; a click pins a card, `data-globe-pinned`), and tells `GlobePanel` through `SunChanged`, which shows the moment and its phase at the panel's top and keeps the Sun's numbers as screen-reader text (`aria-describedby`). The theme changes only the atmosphere and the points. - **Instruments** (`wwwroot/js/instruments.js`; owner decision 2026-10-06: the nerd stats drawn where they belong, not a table). The globe has no tooltip. What it draws: - the Sun: its ray and bead over the subsolar point, the day/night line and the twilights, the declination, the noon and midnight meridian, and its analemma at this hour to the next equinox or solstice; - a focused post's place: its horizon, its Sun's height and its day lit on its latitude; - the tropics, the polar circles and the CDN ring; - the view's centre and spread, and rings around the posts in view; - a small orrery in the top left corner, re-anchored to the camera before each render. The numbers are chips in a DOM overlay (`.globe-instruments`, `aria-hidden`), placed after each frame globe.gl renders (`scene.onAfterRender`), clear of each other, the moment's caption, the orrery and the legend. The frame rate is a ring around the globe; what is left is a legend in the bottom left. Geometry changes only inside a wake globe.js already made, so an idle globe still draws nothing. - three.js's classes come from objects globe.gl made (`classesOf`), never `window.THREE`, since that would mix two copies. three.js sets its `is*` flags on instances, so the lookup checks instances. globe.gl adds its globe on its first update, after `new Globe()`, so the parts are built before the first render that finds it. Without the classes, only the ring and the legend remain. - A canvas under 320px tall (a phone's banner) gets the day/night line and the subsolar point only; full screen gets everything. - **Countries.** Land borders as thin paths, and names placed by `placeLabels`: largest countries first, once they span enough pixels, away from the globe's edge and clear of each other, in the reader's language (`Intl.DisplayNames`). `countries.json` is built by `tools/globe/prepare-countries.py` from world-atlas (Natural Earth). The label renderer owns `display`, so labels hide through `visibility`. - CDN-fronted posts are labels per CDN on a ring at 68°N, never a place; hovering one draws its arc there and a ring where the server was before the CDN. The posts' places reach it in one call per feed change; cards are matched by `data-post-id`. - **Nerd stats** (`Components/Nerd/NerdTip.razor`, rows from `NerdRow`): a post's ids, times and provenance (read on hover), its author and server with the server's changes of place and CDN week by week, its place or its CDN (how PrivaPub found it, the place before it, the CDN's servers week by week), media and counts; the feed's paging and last request. The globe's are its instruments (see **The globe**), with no tooltip and no poll. **Localization (`Services/CoalescingStringLocalizer.cs`).** - Lookup order: this repo's `Resources/AllStrings.resx` (+ `.it.resx`), then `FieldsNameResource`, then `ErrorsResource`. - A missing key renders as the key itself, formatted with its arguments, so a typo fails silently. - `Resources/ErrorMessages.resx` is read by `[Required]` / `[StringLength]` through `ErrorMessageResourceType`, and by the D fields' parse errors (`DInputBase`, `DCalendar`) through the static `ErrorMessages.InvalidValue` / `InvalidDate`. A new key needs its `public static string` property in `ErrorMessages.Designer.cs` too, or validation throws at runtime. **Client storage** is localStorage (Blazored.LocalStorage, camelCase JSON): `AuthData`, `PublicCacheData`, `FeedFilter` and the server cache `ServerInfos`, keyed by `nameof(Type)`. There is no IndexedDB: `ILoggingService` writes to the browser console only, and `main.js` deletes the database (`data`) where the client once kept its log, wherever a browser still holds it. **Auth.** `TokenAuthStateProvider` holds `AuthData` (localStorage, cached in memory) and builds the auth state from it: the root's name, its policies as claims, and the current persona. Pages that need a session carry `[Authorize]`; `RedirectToLogin` sends the reader to `/login?returnUrl=…`. **JS interop.** - `wwwroot/main.js` defines `window.*` helpers. `Services/AppStatusService.cs` calls them, mostly through the synchronous `IJSInProcessRuntime`. - Each helper reports its errors back through `window.logFromJs`. - The other scripts (`js/theme.js`, HeadElement's, `vendor/cally.js`, `js/blurhash.js`) are loaded by `