feat(gcal): Google Calendar kan læses, og kalenderen får sine egne tabeller
Klienten henter kalenderlisten og begivenhederne i et vindue, og laver Googles to former om til den ene, et gitter kan spørge om: dage i begge ender, begge med. Googles heldags-slutdato er eksklusiv, og et møde, der slutter ved midnat, slutter aftenen før — begge dele rettes ét sted frem for hos hver læser. Egne tabeller frem for `mailboxes`. De to ligner hinanden på afstand og er uenige om hver eneste kolonne bagefter: `trigger_kind`, `seen`, `last_uid` og `project_id` svarer alle på "hvad laver en besked om til en opgave", og intet her bliver til en opgave. Én konto rummer desuden mange kalendere, og en en-til-mange er der ikke plads til. Det afgørende er mindre og mere praktisk: `mailboxes.kind` har en CHECK, og SQLite kan ikke ændre en CHECK — en tredje værdi koster en tabelombygning med fremmednøgler slået fra. Derfor er der ingen CHECK på `provider` her: CalDAV skal koste en række, ikke en ombygning.
This commit is contained in:
Kristian Wind
@@ -0,0 +1,328 @@
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// Package gcal reads a Google Calendar. It never writes one.
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//
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// The scope is calendar.readonly, and that is the whole of the decision: verdande
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// already is a CalDAV server, so a Google event shown here is a second calendar
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// laid over the first, not a copy Google and verdande now both have to agree
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// about. Writing needs `calendar.events`, and it needs an answer to what happens
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// when both sides moved the same meeting — which is a synchronisation model, not a
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// scope. Read first; write later and to one calendar at a time.
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//
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// What the API gives back and what this returns are deliberately different shapes.
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// Google answers with RFC 3339 instants for a timed event and bare dates for an
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// all-day one, and with an *exclusive* end date for the second. A calendar grid
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// asks one question — "which cells does this event cover" — so that is what an
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// Event answers, in days, worked out once here rather than in every caller.
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package gcal
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import (
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"context"
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"fmt"
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"net/http"
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"net/url"
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"strings"
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"time"
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"github.com/kristianwind/verdande/internal/google"
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)
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// Scope is read-only, and only the calendar.
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//
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// Google also offers calendar.calendarlist.readonly and calendar.events.readonly,
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// which together are strictly less than this — they leave out access rules and
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// account settings, which verdande has no use for. They are the tighter pair and
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// worth moving to; they are also newer, and this one has been documented and
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// accepted unchanged for a decade. A consent screen that fails with `invalid_scope`
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// is not a place to be adventurous on somebody else's Google account.
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const Scope = "https://www.googleapis.com/auth/calendar.readonly"
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const defaultAPIBase = "https://www.googleapis.com/calendar/v3"
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// ErrUnauthorized means the tokens are no longer good — access was revoked, or the
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// password changed. Re-exported so a caller need not know the flow lives elsewhere.
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var ErrUnauthorized = google.ErrUnauthorized
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type Client struct {
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accessToken string
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// base is where the Calendar API is. A field rather than a constant so a test
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// can point it at a server it controls; empty is Google. There is no other way
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// to exercise a calendar that is slow, empty, or refuses.
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base string
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http *http.Client
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}
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func NewClient(accessToken string) *Client {
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return &Client{accessToken: accessToken, http: &http.Client{Timeout: 30 * time.Second}}
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}
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// At points the client at another server. Tests only; the zero value is Google.
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func (c *Client) At(base string) *Client {
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c.base = base
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return c
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}
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func (c *Client) api() string {
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if c.base != "" {
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return c.base
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}
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return defaultAPIBase
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}
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// Calendar is one entry in the person's calendar list.
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type Calendar struct {
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ID string
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// Name is the summary Google holds. A calendar somebody renamed for themselves
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// carries summaryOverride instead, and that is the name they will look for.
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Name string
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// Colour is Google's own hex value for the calendar, which is what makes two
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// calendars in one grid tellable apart. Their own colour rather than one picked
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// here: it is the colour they already know the calendar by.
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Colour string
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TimeZone string
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Primary bool
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// Owner means the connected account can write to it. Nothing writes today —
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// it is stored so the day something does, the interface knows which calendars
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// could even be offered.
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Owner bool
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}
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// Calendars lists what the connected account can see.
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func (c *Client) Calendars(ctx context.Context) ([]Calendar, error) {
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var out []Calendar
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page := ""
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// Bounded rather than "until Google stops": a page token that never empties is
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// a loop that never ends, and the difference between a bug at Google and a
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// hung sync should not be this server hanging.
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for range 10 {
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v := url.Values{}
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v.Set("minAccessRole", "reader")
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v.Set("maxResults", "250")
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if page != "" {
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v.Set("pageToken", page)
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}
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var parsed struct {
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Items []struct {
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ID string `json:"id"`
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Summary string `json:"summary"`
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SummaryOverride string `json:"summaryOverride"`
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BackgroundColor string `json:"backgroundColor"`
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TimeZone string `json:"timeZone"`
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Primary bool `json:"primary"`
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AccessRole string `json:"accessRole"`
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Deleted bool `json:"deleted"`
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} `json:"items"`
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NextPageToken string `json:"nextPageToken"`
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}
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if err := c.get(ctx, c.api()+"/users/me/calendarList?"+v.Encode(), &parsed); err != nil {
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return nil, err
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}
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for _, item := range parsed.Items {
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if item.Deleted {
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continue
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}
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name := item.SummaryOverride
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if name == "" {
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name = item.Summary
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}
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out = append(out, Calendar{
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ID: item.ID, Name: name, Colour: item.BackgroundColor,
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TimeZone: item.TimeZone, Primary: item.Primary,
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Owner: item.AccessRole == "owner" || item.AccessRole == "writer",
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})
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}
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if parsed.NextPageToken == "" {
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break
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}
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page = parsed.NextPageToken
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}
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return out, nil
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}
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// Event is one occurrence, in the shape a calendar grid asks about.
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type Event struct {
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ID string
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Summary string
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// StartsAt and EndsAt are RFC 3339 for a timed event and empty for an all-day
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// one — an all-day event has no instant, only a day, and inventing midnight for
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// it is how an event moves a day every time a server changes time zone.
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StartsAt string
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EndsAt string
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// StartDay and EndDay are the first and last day the event covers, inclusive at
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// both ends. Google's all-day end date is exclusive; that is corrected here,
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// once, rather than in every reader.
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StartDay string
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EndDay string
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AllDay bool
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Location string
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// URL opens the event in Google's own interface. Same reasoning as the Gmail
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// link on a task made from a mail: what verdande shows is a pointer to the
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// event, not a second copy of it that somebody could try to edit.
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URL string
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}
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// Events lists what falls inside a window, one calendar at a time.
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//
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// `singleEvents` expands a recurrence into its occurrences, which is the only form
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// a grid can draw: an RRULE is an instruction, and a Tuesday cell needs the Tuesday
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// it produced. It also means verdande does not have to grow a second recurrence
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// engine that agrees with Google's about Danish summer time.
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//
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// from and to are dates, inclusive. The window is the caller's business; this
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// turns it into the half-open interval Google wants.
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func (c *Client) Events(ctx context.Context, calendarID, from, to string) ([]Event, error) {
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start, err := time.Parse(dateLayout, from)
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if err != nil {
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return nil, fmt.Errorf("gcal: from: %w", err)
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}
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end, err := time.Parse(dateLayout, to)
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if err != nil {
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return nil, fmt.Errorf("gcal: to: %w", err)
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}
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var out []Event
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page := ""
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for range 20 {
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v := url.Values{}
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v.Set("singleEvents", "true")
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v.Set("orderBy", "startTime")
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v.Set("maxResults", "2500")
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// UTC, and a day of slack at each end. An event at 23:30 on the last day in
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// Copenhagen is 21:30 UTC that day, but one at 00:30 on the first day is
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// 22:30 UTC the day *before* — so a window cut exactly at the requested
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// dates loses the events at both edges. The extra day is thrown away again
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// by the day fields below, which are computed from the event's own offset.
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v.Set("timeMin", start.AddDate(0, 0, -1).Format(time.RFC3339))
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v.Set("timeMax", end.AddDate(0, 0, 2).Format(time.RFC3339))
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if page != "" {
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v.Set("pageToken", page)
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}
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var parsed struct {
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Items []rawEvent `json:"items"`
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NextPageToken string `json:"nextPageToken"`
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}
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url := c.api() + "/calendars/" + url.PathEscape(calendarID) + "/events?" + v.Encode()
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if err := c.get(ctx, url, &parsed); err != nil {
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return nil, err
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}
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for _, item := range parsed.Items {
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// A cancelled occurrence of a recurring event still comes back, so that
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// a client keeping its own copy knows to drop it. verdande replaces the
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// window wholesale, so it only has to not add it.
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if item.Status == "cancelled" {
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continue
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}
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event, ok := item.event()
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if !ok {
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continue
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}
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if event.EndDay < from || event.StartDay > to {
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continue // the slack above, thrown away
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}
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out = append(out, event)
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}
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if parsed.NextPageToken == "" {
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break
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}
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page = parsed.NextPageToken
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}
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return out, nil
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}
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const dateLayout = "2006-01-02"
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type rawEvent struct {
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ID string `json:"id"`
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Status string `json:"status"`
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Summary string `json:"summary"`
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Location string `json:"location"`
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HTMLLink string `json:"htmlLink"`
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Start when `json:"start"`
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End when `json:"end"`
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}
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type when struct {
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Date string `json:"date"`
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DateTime string `json:"dateTime"`
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}
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// event turns Google's two shapes into the one a grid can read.
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//
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// The second return is false for an event with neither a date nor a dateTime —
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// which Google does return, for an event somebody is still being asked about. It
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// belongs on no day, so there is no cell to draw it in.
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func (r rawEvent) event() (Event, bool) {
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e := Event{
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ID: r.ID, Summary: strings.TrimSpace(r.Summary),
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Location: r.Location, URL: r.HTMLLink,
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}
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if e.Summary == "" {
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// Google's own interface says this for an event with no title, and a blank
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// chip in a grid reads as a rendering fault rather than as an empty title.
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e.Summary = "(uden titel)"
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}
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switch {
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case r.Start.Date != "":
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e.AllDay = true
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e.StartDay = r.Start.Date
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// Google's all-day end is the day *after* the last one, so a one-day event
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// ends tomorrow. Subtracting a day is what makes "covers this cell" a
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// comparison rather than a special case at every call site.
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e.EndDay = r.Start.Date
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if day, err := time.Parse(dateLayout, r.End.Date); err == nil {
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if last := day.AddDate(0, 0, -1); !last.Before(mustDay(r.Start.Date)) {
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e.EndDay = last.Format(dateLayout)
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}
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}
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case r.Start.DateTime != "":
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e.StartsAt = r.Start.DateTime
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e.EndsAt = r.End.DateTime
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// The day is the date part of the timestamp Google returned, which carries
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// the event's own offset. Parsing it into a time.Time and formatting it
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// back would ask *this process* what day it is — and a container running in
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// UTC would then move a 23:30 meeting in Copenhagen to the day before.
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e.StartDay = dayOf(r.Start.DateTime)
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e.EndDay = dayOf(r.End.DateTime)
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if e.EndDay == "" {
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e.EndDay = e.StartDay
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}
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// An event ending at midnight ends the evening before, as far as a grid is
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// concerned. Without this, every meeting that runs to 24:00 puts a chip in
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// the following day as well.
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if e.EndDay > e.StartDay && strings.Contains(r.End.DateTime, "T00:00:00") {
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if day, err := time.Parse(dateLayout, e.EndDay); err == nil {
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e.EndDay = day.AddDate(0, 0, -1).Format(dateLayout)
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}
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}
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default:
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return Event{}, false
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}
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if e.EndDay < e.StartDay {
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e.EndDay = e.StartDay
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}
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return e, true
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}
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// dayOf takes the date out of an RFC 3339 timestamp without interpreting it.
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func dayOf(stamp string) string {
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if len(stamp) < len(dateLayout) {
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return ""
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}
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day := stamp[:len(dateLayout)]
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if _, err := time.Parse(dateLayout, day); err != nil {
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return ""
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}
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return day
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}
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func mustDay(s string) time.Time {
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day, _ := time.Parse(dateLayout, s)
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return day
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}
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func (c *Client) get(ctx context.Context, url string, out any) error {
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return google.Get(ctx, c.http, c.accessToken, url, out)
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}
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@@ -0,0 +1,255 @@
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package gcal
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import (
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"encoding/json"
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"net/http"
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"net/http/httptest"
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"strings"
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"testing"
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)
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// fakeGoogle answers the two calls this package makes, out of whatever the test
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// hands it. There is no other way to exercise this: the real Calendar needs an
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// account, a registered client and somebody's consent, and none of the three can be
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// had inside a test — so the shapes Google returns are written down here and the
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// parsing is checked against them.
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func fakeGoogle(t *testing.T, calendarList any, events map[string]any) *Client {
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t.Helper()
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srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Type", "application/json")
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switch {
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case strings.HasPrefix(r.URL.Path, "/users/me/calendarList"):
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_ = json.NewEncoder(w).Encode(calendarList)
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case strings.HasPrefix(r.URL.Path, "/calendars/"):
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id := strings.TrimSuffix(strings.TrimPrefix(r.URL.Path, "/calendars/"), "/events")
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body, ok := events[id]
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if !ok {
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http.Error(w, `{"error":"not found"}`, http.StatusNotFound)
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return
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}
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_ = json.NewEncoder(w).Encode(body)
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default:
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http.Error(w, "unexpected path "+r.URL.Path, http.StatusNotFound)
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}
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}))
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t.Cleanup(srv.Close)
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return NewClient("token").At(srv.URL)
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}
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func TestCalendarsPrefersTheNameThePersonGaveIt(t *testing.T) {
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client := fakeGoogle(t, map[string]any{
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"items": []map[string]any{
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{"id": "primary", "summary": "kw@nolimit.dk", "backgroundColor": "#3f51b5",
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"timeZone": "Europe/Copenhagen", "primary": true, "accessRole": "owner"},
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{"id": "fam", "summary": "Family", "summaryOverride": "Familien",
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"backgroundColor": "#0b8043", "accessRole": "reader"},
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// A calendar removed from the list still arrives, flagged.
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{"id": "gone", "summary": "Væk", "deleted": true, "accessRole": "reader"},
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},
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}, nil)
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got, err := client.Calendars(t.Context())
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if err != nil {
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t.Fatal(err)
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}
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if len(got) != 2 {
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t.Fatalf("got %d calendars, want 2 — a deleted one is not one you can show", len(got))
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}
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if got[1].Name != "Familien" {
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t.Errorf("name = %q; summaryOverride is the name the person will look for", got[1].Name)
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}
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if !got[0].Primary || !got[0].Owner {
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t.Errorf("the primary calendar came back as %+v", got[0])
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}
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if got[1].Owner {
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t.Error("a reader was reported as an owner; nothing may offer to write to it")
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}
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if got[0].Colour != "#3f51b5" {
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t.Errorf("colour = %q; two calendars in one grid are told apart by it", got[0].Colour)
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}
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}
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// The three shapes an event arrives in, and the one shape a grid can read.
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func TestEventsBecomeDaysAGridCanAskAbout(t *testing.T) {
|
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client := fakeGoogle(t, nil, map[string]any{
|
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"primary": map[string]any{
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"items": []map[string]any{
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{
|
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"id": "timed", "summary": "Bestyrelsesmøde", "htmlLink": "https://cal/1",
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"start": map[string]string{"dateTime": "2026-08-20T14:00:00+02:00"},
|
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"end": map[string]string{"dateTime": "2026-08-20T15:30:00+02:00"},
|
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},
|
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{
|
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// All-day, one day. Google's end is the day after.
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"id": "allday", "summary": "Fridag",
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"start": map[string]string{"date": "2026-08-21"},
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"end": map[string]string{"date": "2026-08-22"},
|
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},
|
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{
|
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// All-day, three days.
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"id": "trip", "summary": "Aarhus",
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"start": map[string]string{"date": "2026-08-24"},
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"end": map[string]string{"date": "2026-08-27"},
|
||||
},
|
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{
|
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// Runs to midnight, which is the evening before as far as a
|
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// grid is concerned.
|
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"id": "late", "summary": "Nattevagt",
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"start": map[string]string{"dateTime": "2026-08-22T20:00:00+02:00"},
|
||||
"end": map[string]string{"dateTime": "2026-08-23T00:00:00+02:00"},
|
||||
},
|
||||
{
|
||||
// A cancelled occurrence of a recurring event.
|
||||
"id": "off", "status": "cancelled", "summary": "Aflyst",
|
||||
"start": map[string]string{"date": "2026-08-25"},
|
||||
"end": map[string]string{"date": "2026-08-26"},
|
||||
},
|
||||
{
|
||||
// Neither a date nor a dateTime: belongs on no day at all.
|
||||
"id": "nowhere", "summary": "Uden tid",
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
got, err := client.Events(t.Context(), "primary", "2026-08-01", "2026-08-31")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
byID := map[string]Event{}
|
||||
for _, e := range got {
|
||||
byID[e.ID] = e
|
||||
}
|
||||
if len(got) != 4 {
|
||||
t.Fatalf("got %d events, want 4: %+v", len(got), got)
|
||||
}
|
||||
if _, ok := byID["off"]; ok {
|
||||
t.Error("a cancelled occurrence was kept; it is an event that is not happening")
|
||||
}
|
||||
if _, ok := byID["nowhere"]; ok {
|
||||
t.Error("an event with no time was kept; there is no cell to draw it in")
|
||||
}
|
||||
|
||||
timed := byID["timed"]
|
||||
if timed.AllDay || timed.StartDay != "2026-08-20" || timed.EndDay != "2026-08-20" {
|
||||
t.Errorf("timed = %+v", timed)
|
||||
}
|
||||
if timed.StartsAt != "2026-08-20T14:00:00+02:00" {
|
||||
t.Errorf("the instant was rewritten: %q", timed.StartsAt)
|
||||
}
|
||||
|
||||
allday := byID["allday"]
|
||||
if !allday.AllDay || allday.StartDay != "2026-08-21" || allday.EndDay != "2026-08-21" {
|
||||
t.Errorf("allday = %+v; Google's end date is exclusive and has to be corrected here",
|
||||
allday)
|
||||
}
|
||||
if allday.StartsAt != "" {
|
||||
t.Errorf("an all-day event was given an instant: %q — it has a day, not a moment",
|
||||
allday.StartsAt)
|
||||
}
|
||||
|
||||
if trip := byID["trip"]; trip.StartDay != "2026-08-24" || trip.EndDay != "2026-08-26" {
|
||||
t.Errorf("trip = %+v, want 24th to 26th inclusive", trip)
|
||||
}
|
||||
if late := byID["late"]; late.EndDay != "2026-08-22" {
|
||||
t.Errorf("late ends on %q; an event running to midnight ends the evening before, "+
|
||||
"or every one of them puts a chip in the following day", late.EndDay)
|
||||
}
|
||||
}
|
||||
|
||||
// An event with no title has to say so. A blank chip in a grid reads as a
|
||||
// rendering fault rather than as an empty title.
|
||||
func TestAnEventWithNoTitleStillSaysSomething(t *testing.T) {
|
||||
client := fakeGoogle(t, nil, map[string]any{
|
||||
"c": map[string]any{"items": []map[string]any{{
|
||||
"id": "x",
|
||||
"start": map[string]string{"date": "2026-08-20"},
|
||||
"end": map[string]string{"date": "2026-08-21"},
|
||||
}}},
|
||||
})
|
||||
got, err := client.Events(t.Context(), "c", "2026-08-01", "2026-08-31")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if len(got) != 1 || got[0].Summary == "" {
|
||||
t.Fatalf("got %+v", got)
|
||||
}
|
||||
}
|
||||
|
||||
// The window is asked for with a day of slack at each end, because an event late
|
||||
// in the evening in Copenhagen is the next day in UTC. The slack must not leak
|
||||
// out: an event on the day before the window is not in the window.
|
||||
func TestTheSlackAtTheEdgesIsThrownAwayAgain(t *testing.T) {
|
||||
client := fakeGoogle(t, nil, map[string]any{
|
||||
"c": map[string]any{"items": []map[string]any{
|
||||
{"id": "before", "summary": "For tidligt",
|
||||
"start": map[string]string{"date": "2026-08-09"},
|
||||
"end": map[string]string{"date": "2026-08-10"}},
|
||||
{"id": "inside", "summary": "Med",
|
||||
"start": map[string]string{"date": "2026-08-10"},
|
||||
"end": map[string]string{"date": "2026-08-11"}},
|
||||
{"id": "after", "summary": "For sent",
|
||||
"start": map[string]string{"date": "2026-08-21"},
|
||||
"end": map[string]string{"date": "2026-08-22"}},
|
||||
}},
|
||||
})
|
||||
got, err := client.Events(t.Context(), "c", "2026-08-10", "2026-08-20")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if len(got) != 1 || got[0].ID != "inside" {
|
||||
t.Fatalf("got %+v, want only the one inside the window", got)
|
||||
}
|
||||
}
|
||||
|
||||
// A page token has to be followed, or a busy calendar silently shows its first
|
||||
// page and nothing else — which is a calendar that lies about a day being clear.
|
||||
func TestEveryPageIsRead(t *testing.T) {
|
||||
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/json")
|
||||
body := map[string]any{
|
||||
"items": []map[string]any{{"id": "a", "summary": "Første",
|
||||
"start": map[string]string{"date": "2026-08-11"},
|
||||
"end": map[string]string{"date": "2026-08-12"}}},
|
||||
"nextPageToken": "more",
|
||||
}
|
||||
if r.URL.Query().Get("pageToken") == "more" {
|
||||
body = map[string]any{"items": []map[string]any{{"id": "b", "summary": "Anden",
|
||||
"start": map[string]string{"date": "2026-08-12"},
|
||||
"end": map[string]string{"date": "2026-08-13"}}}}
|
||||
}
|
||||
_ = json.NewEncoder(w).Encode(body)
|
||||
}))
|
||||
defer srv.Close()
|
||||
|
||||
got, err := NewClient("t").At(srv.URL).Events(t.Context(), "c", "2026-08-01", "2026-08-31")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if len(got) != 2 {
|
||||
t.Fatalf("got %d events, want both pages: %+v", len(got), got)
|
||||
}
|
||||
}
|
||||
|
||||
// A 401 is not a failure to retry; it is a connection that has ended. Telling the
|
||||
// two apart is what stops a revoked account being polled every ten minutes for ever.
|
||||
func TestARefusedTokenIsItsOwnError(t *testing.T) {
|
||||
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
http.Error(w, `{"error":"invalid_credentials"}`, http.StatusUnauthorized)
|
||||
}))
|
||||
defer srv.Close()
|
||||
|
||||
_, err := NewClient("spent").At(srv.URL).Calendars(t.Context())
|
||||
if err != ErrUnauthorized {
|
||||
t.Fatalf("err = %v, want ErrUnauthorized", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Read-only, and only the calendar. The consent screen is what somebody agrees to,
|
||||
// and a scope that quietly grew is a promise quietly broken.
|
||||
func TestTheScopeIsReadOnly(t *testing.T) {
|
||||
if !strings.HasSuffix(Scope, "calendar.readonly") {
|
||||
t.Errorf("scope = %q; nothing here writes a calendar", Scope)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,380 @@
|
||||
package store
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"fmt"
|
||||
"time"
|
||||
)
|
||||
|
||||
// CalendarAccount is one connected account belonging to one person.
|
||||
type CalendarAccount struct {
|
||||
ID string `json:"id"`
|
||||
UserID string `json:"-"`
|
||||
Provider string `json:"provider"`
|
||||
Account string `json:"account,omitempty"`
|
||||
|
||||
RefreshToken string `json:"-"` // never leaves the server
|
||||
AccessToken string `json:"-"`
|
||||
ExpiresAt time.Time `json:"-"`
|
||||
|
||||
LastSyncAt time.Time `json:"last_sync_at,omitempty"`
|
||||
CreatedAt time.Time `json:"created_at"`
|
||||
}
|
||||
|
||||
// Calendar is one calendar inside an account, shown or not.
|
||||
type Calendar struct {
|
||||
ID string `json:"id"`
|
||||
AccountID string `json:"-"`
|
||||
RemoteID string `json:"remote_id"`
|
||||
Name string `json:"name"`
|
||||
Colour string `json:"colour,omitempty"`
|
||||
TimeZone string `json:"time_zone,omitempty"`
|
||||
Primary bool `json:"primary"`
|
||||
// Writable says the connected account could write to it. Nothing does — the
|
||||
// scope is read-only — and it is stored so the day something can, the interface
|
||||
// knows which calendars could even be offered.
|
||||
Writable bool `json:"writable"`
|
||||
Shown bool `json:"shown"`
|
||||
SortOrder int `json:"-"`
|
||||
}
|
||||
|
||||
// CalendarEvent is one occurrence, in the shape a grid asks about: days at both
|
||||
// ends, inclusive.
|
||||
type CalendarEvent struct {
|
||||
ID string `json:"id"`
|
||||
CalendarID string `json:"calendar_id"`
|
||||
RemoteID string `json:"-"`
|
||||
Summary string `json:"summary"`
|
||||
StartsAt string `json:"starts_at,omitempty"`
|
||||
EndsAt string `json:"ends_at,omitempty"`
|
||||
StartDay string `json:"start_day"`
|
||||
EndDay string `json:"end_day"`
|
||||
AllDay bool `json:"all_day"`
|
||||
Location string `json:"location,omitempty"`
|
||||
URL string `json:"url,omitempty"`
|
||||
|
||||
// CalendarName and Colour ride along with the event rather than being looked up
|
||||
// per row by the caller. Same reasoning as the assignee names on a task list:
|
||||
// the chip has to be drawn in the calendar's own colour, and a second request
|
||||
// per event to learn it is a request per event.
|
||||
CalendarName string `json:"calendar_name,omitempty"`
|
||||
Colour string `json:"colour,omitempty"`
|
||||
}
|
||||
|
||||
const calendarAccountColumns = `id, user_id, provider, account, refresh_token,
|
||||
access_token, expires_at, last_sync_at, created_at`
|
||||
|
||||
// CalendarAccountFor returns a person's connection to one provider, or nil.
|
||||
func (db *DB) CalendarAccountFor(ctx context.Context, userID, provider string) (*CalendarAccount, error) {
|
||||
row := db.QueryRowContext(ctx, `SELECT `+calendarAccountColumns+`
|
||||
FROM calendar_accounts WHERE user_id = ? AND provider = ?`, userID, provider)
|
||||
a, err := db.scanCalendarAccount(row)
|
||||
if err == sql.ErrNoRows {
|
||||
return nil, nil
|
||||
}
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &a, nil
|
||||
}
|
||||
|
||||
// SaveCalendarAccount writes one, sealing the two columns that must not travel
|
||||
// with a backup. Called by hand rather than by the settings tables' own seal,
|
||||
// which does not reach this table.
|
||||
func (db *DB) SaveCalendarAccount(ctx context.Context, a *CalendarAccount) error {
|
||||
if a.ID == "" {
|
||||
a.ID = NewID()
|
||||
}
|
||||
if a.Provider == "" {
|
||||
a.Provider = "google"
|
||||
}
|
||||
if a.CreatedAt.IsZero() {
|
||||
a.CreatedAt = time.Now()
|
||||
}
|
||||
|
||||
refresh, err := db.sealValue(a.RefreshToken)
|
||||
if err != nil {
|
||||
return fmt.Errorf("seal refresh_token: %w", err)
|
||||
}
|
||||
access, err := db.sealValue(a.AccessToken)
|
||||
if err != nil {
|
||||
return fmt.Errorf("seal access_token: %w", err)
|
||||
}
|
||||
|
||||
// The conflict is on the pair, not on the id: a reconnect builds a fresh
|
||||
// struct with no id in it, and matching on the id would insert a second row
|
||||
// that the unique index then refuses — which reads to the person as "connecting
|
||||
// failed" when what happened is that it already had.
|
||||
_, err = db.ExecContext(ctx, `
|
||||
INSERT INTO calendar_accounts (`+calendarAccountColumns+`)
|
||||
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
|
||||
ON CONFLICT (user_id, provider) DO UPDATE SET
|
||||
account = excluded.account,
|
||||
refresh_token = excluded.refresh_token,
|
||||
access_token = excluded.access_token,
|
||||
expires_at = excluded.expires_at,
|
||||
last_sync_at = excluded.last_sync_at`,
|
||||
a.ID, a.UserID, a.Provider, a.Account, refresh, access,
|
||||
unixOrZero(a.ExpiresAt), unixOrZero(a.LastSyncAt), a.CreatedAt.Unix())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// The row that is actually there wins. On a reconnect the insert above updated
|
||||
// an existing row, so the id in hand is one nothing points at — and the
|
||||
// calendars are hung off the id, so writing them against it would attach them
|
||||
// to nothing.
|
||||
return db.QueryRowContext(ctx,
|
||||
`SELECT id FROM calendar_accounts WHERE user_id = ? AND provider = ?`,
|
||||
a.UserID, a.Provider).Scan(&a.ID)
|
||||
}
|
||||
|
||||
// MarkCalendarSynced records how far a run got. Written separately from the rest
|
||||
// so a sync never rewrites the credentials it is holding in memory.
|
||||
func (db *DB) MarkCalendarSynced(ctx context.Context, accountID string, at time.Time) error {
|
||||
_, err := db.ExecContext(ctx,
|
||||
`UPDATE calendar_accounts SET last_sync_at = ? WHERE id = ?`, at.Unix(), accountID)
|
||||
return err
|
||||
}
|
||||
|
||||
// DeleteCalendarAccount disconnects one. The calendars and their events go with it
|
||||
// — unlike the tasks a mailbox made, none of this is the person's own work; it is
|
||||
// a copy of somebody else's calendar and it has no meaning without the account.
|
||||
func (db *DB) DeleteCalendarAccount(ctx context.Context, userID, id string) error {
|
||||
_, err := db.ExecContext(ctx,
|
||||
`DELETE FROM calendar_accounts WHERE id = ? AND user_id = ?`, id, userID)
|
||||
return err
|
||||
}
|
||||
|
||||
// UsersWithCalendars returns everybody the sweep has to visit.
|
||||
func (db *DB) UsersWithCalendars(ctx context.Context) ([]string, error) {
|
||||
rows, err := db.QueryContext(ctx, `SELECT DISTINCT user_id FROM calendar_accounts`)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
var ids []string
|
||||
for rows.Next() {
|
||||
var id string
|
||||
if err := rows.Scan(&id); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
ids = append(ids, id)
|
||||
}
|
||||
return ids, rows.Err()
|
||||
}
|
||||
|
||||
// Calendars returns what one account holds, in the order the provider listed them.
|
||||
func (db *DB) Calendars(ctx context.Context, accountID string) ([]Calendar, error) {
|
||||
rows, err := db.QueryContext(ctx, `
|
||||
SELECT id, account_id, remote_id, name, colour, time_zone, primary_one,
|
||||
writable, shown, sort_order
|
||||
FROM calendars WHERE account_id = ? ORDER BY sort_order, name`, accountID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
var out []Calendar
|
||||
for rows.Next() {
|
||||
var c Calendar
|
||||
if err := rows.Scan(&c.ID, &c.AccountID, &c.RemoteID, &c.Name, &c.Colour,
|
||||
&c.TimeZone, &c.Primary, &c.Writable, &c.Shown, &c.SortOrder); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
out = append(out, c)
|
||||
}
|
||||
return out, rows.Err()
|
||||
}
|
||||
|
||||
// ReplaceCalendars writes the list the provider just gave, keeping what the person
|
||||
// chose.
|
||||
//
|
||||
// The choice survives because it is not in the list: Google says which calendars
|
||||
// exist and what they are called, and only verdande knows which of them somebody
|
||||
// wants to look at. Merged rather than deleted and rewritten, so ticking a calendar
|
||||
// on does not come undone the next time the sweep runs.
|
||||
//
|
||||
// A calendar that has disappeared from the account is removed, and its events go
|
||||
// with it — a calendar somebody was unshared from should stop being drawn, not
|
||||
// stay behind as a frozen copy of what it held on the last good day.
|
||||
func (db *DB) ReplaceCalendars(ctx context.Context, accountID string, list []Calendar) error {
|
||||
return db.Tx(ctx, func(tx *sql.Tx) error {
|
||||
keep := map[string]bool{}
|
||||
for i, c := range list {
|
||||
keep[c.RemoteID] = true
|
||||
// The insert cannot carry `shown`: on conflict it would overwrite the
|
||||
// choice with the default. A new calendar starts hidden — an account
|
||||
// with a dozen shared calendars in it should not fill somebody's grid
|
||||
// the moment they connect it.
|
||||
if _, err := tx.ExecContext(ctx, `
|
||||
INSERT INTO calendars
|
||||
(id, account_id, remote_id, name, colour, time_zone, primary_one,
|
||||
writable, shown, sort_order)
|
||||
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
|
||||
ON CONFLICT (account_id, remote_id) DO UPDATE SET
|
||||
name = excluded.name,
|
||||
colour = excluded.colour,
|
||||
time_zone = excluded.time_zone,
|
||||
primary_one = excluded.primary_one,
|
||||
writable = excluded.writable,
|
||||
sort_order = excluded.sort_order`,
|
||||
NewID(), accountID, c.RemoteID, c.Name, c.Colour, c.TimeZone,
|
||||
c.Primary, c.Writable, c.Shown, i); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
rows, err := tx.QueryContext(ctx,
|
||||
`SELECT id, remote_id FROM calendars WHERE account_id = ?`, accountID)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
var gone []string
|
||||
for rows.Next() {
|
||||
var id, remote string
|
||||
if err := rows.Scan(&id, &remote); err != nil {
|
||||
rows.Close()
|
||||
return err
|
||||
}
|
||||
if !keep[remote] {
|
||||
gone = append(gone, id)
|
||||
}
|
||||
}
|
||||
// Closed before the next statement runs on this transaction. An open result
|
||||
// set with a query behind it is the deadlock the pool comment in store.go
|
||||
// exists to make slow rather than fatal.
|
||||
rows.Close()
|
||||
if err := rows.Err(); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
for _, id := range gone {
|
||||
if _, err := tx.ExecContext(ctx, `DELETE FROM calendars WHERE id = ?`, id); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
})
|
||||
}
|
||||
|
||||
// ShowCalendars sets which of an account's calendars are drawn.
|
||||
//
|
||||
// The whole set in one write rather than one flip at a time, for the reason the
|
||||
// projects' order is written the same way: a person has a handful of calendars, the
|
||||
// question is "these ones", and a list that can only be built by several requests
|
||||
// can land half applied.
|
||||
func (db *DB) ShowCalendars(ctx context.Context, accountID string, shown []string) error {
|
||||
return db.Tx(ctx, func(tx *sql.Tx) error {
|
||||
if _, err := tx.ExecContext(ctx,
|
||||
`UPDATE calendars SET shown = 0 WHERE account_id = ?`, accountID); err != nil {
|
||||
return err
|
||||
}
|
||||
for _, id := range shown {
|
||||
// Scoped in the SQL rather than checked first: an id read in one step
|
||||
// and written in the next is a window, and the account is the whole of
|
||||
// the permission here.
|
||||
if _, err := tx.ExecContext(ctx,
|
||||
`UPDATE calendars SET shown = 1 WHERE id = ? AND account_id = ?`,
|
||||
id, accountID); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
// Events of a calendar nobody is looking at are dead weight in a table the
|
||||
// grid queries. They come back with the next sync if it is turned on again.
|
||||
_, err := tx.ExecContext(ctx, `
|
||||
DELETE FROM calendar_events WHERE calendar_id IN
|
||||
(SELECT id FROM calendars WHERE account_id = ? AND shown = 0)`, accountID)
|
||||
return err
|
||||
})
|
||||
}
|
||||
|
||||
// ReplaceCalendarEvents swaps one calendar's events inside a window.
|
||||
//
|
||||
// Replaced rather than merged, and no sync token. Google offers incremental sync,
|
||||
// and it would save bytes verdande is not short of while costing the one thing it
|
||||
// cannot afford: a token that has to be right, forever, for the grid not to be
|
||||
// quietly wrong. A window that is deleted and rewritten cannot drift — an event
|
||||
// somebody moved out of the window disappears because it is not in the answer, not
|
||||
// because verdande remembered to delete it.
|
||||
//
|
||||
// Bounded by the window at both ends, so a sync of September does not throw away
|
||||
// August.
|
||||
func (db *DB) ReplaceCalendarEvents(ctx context.Context, calendarID, from, to string, events []CalendarEvent) error {
|
||||
return db.Tx(ctx, func(tx *sql.Tx) error {
|
||||
if _, err := tx.ExecContext(ctx, `
|
||||
DELETE FROM calendar_events
|
||||
WHERE calendar_id = ? AND end_day >= ? AND start_day <= ?`,
|
||||
calendarID, from, to); err != nil {
|
||||
return err
|
||||
}
|
||||
for _, e := range events {
|
||||
if _, err := tx.ExecContext(ctx, `
|
||||
INSERT INTO calendar_events
|
||||
(id, calendar_id, remote_id, summary, starts_at, ends_at,
|
||||
start_day, end_day, all_day, location, url)
|
||||
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
|
||||
NewID(), calendarID, e.RemoteID, e.Summary, e.StartsAt, e.EndsAt,
|
||||
e.StartDay, e.EndDay, e.AllDay, e.Location, e.URL); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
})
|
||||
}
|
||||
|
||||
// CalendarEvents returns everything one person can see between two days,
|
||||
// inclusive at both ends.
|
||||
//
|
||||
// Scoped to the caller in the join rather than checked afterwards: the events of
|
||||
// somebody else's calendar are somebody else's, and a filter applied after the read
|
||||
// is a filter that can be forgotten.
|
||||
func (db *DB) CalendarEvents(ctx context.Context, userID, from, to string) ([]CalendarEvent, error) {
|
||||
rows, err := db.QueryContext(ctx, `
|
||||
SELECT e.id, e.calendar_id, e.remote_id, e.summary, e.starts_at, e.ends_at,
|
||||
e.start_day, e.end_day, e.all_day, e.location, e.url, c.name, c.colour
|
||||
FROM calendar_events e
|
||||
JOIN calendars c ON c.id = e.calendar_id
|
||||
JOIN calendar_accounts a ON a.id = c.account_id
|
||||
WHERE a.user_id = ? AND c.shown = 1 AND e.end_day >= ? AND e.start_day <= ?
|
||||
ORDER BY e.start_day, e.all_day DESC, e.starts_at`, userID, from, to)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
var out []CalendarEvent
|
||||
for rows.Next() {
|
||||
var e CalendarEvent
|
||||
if err := rows.Scan(&e.ID, &e.CalendarID, &e.RemoteID, &e.Summary, &e.StartsAt,
|
||||
&e.EndsAt, &e.StartDay, &e.EndDay, &e.AllDay, &e.Location, &e.URL,
|
||||
&e.CalendarName, &e.Colour); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
out = append(out, e)
|
||||
}
|
||||
return out, rows.Err()
|
||||
}
|
||||
|
||||
func (db *DB) scanCalendarAccount(row scanner) (CalendarAccount, error) {
|
||||
var a CalendarAccount
|
||||
var expires, lastSync, created int64
|
||||
err := row.Scan(&a.ID, &a.UserID, &a.Provider, &a.Account, &a.RefreshToken,
|
||||
&a.AccessToken, &expires, &lastSync, &created)
|
||||
if err != nil {
|
||||
return a, err
|
||||
}
|
||||
for _, field := range []*string{&a.RefreshToken, &a.AccessToken} {
|
||||
plain, err := db.unsealValue(*field)
|
||||
if err != nil {
|
||||
return a, err
|
||||
}
|
||||
*field = plain
|
||||
}
|
||||
a.ExpiresAt = timeOrZero(expires)
|
||||
a.LastSyncAt = timeOrZero(lastSync)
|
||||
a.CreatedAt = time.Unix(created, 0)
|
||||
return a, nil
|
||||
}
|
||||
@@ -0,0 +1,358 @@
|
||||
package store
|
||||
|
||||
import (
|
||||
"context"
|
||||
"strings"
|
||||
"testing"
|
||||
"time"
|
||||
)
|
||||
|
||||
func connectedAccount(t *testing.T, db *DB, userID string) *CalendarAccount {
|
||||
t.Helper()
|
||||
a := &CalendarAccount{
|
||||
UserID: userID, Provider: "google", Account: "kw@nolimit.dk",
|
||||
RefreshToken: "1//0-a-real-looking-refresh-token", AccessToken: "ya29.access",
|
||||
ExpiresAt: time.Now().Add(time.Hour),
|
||||
}
|
||||
if err := db.SaveCalendarAccount(context.Background(), a); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
return a
|
||||
}
|
||||
|
||||
// The same claim the mailbox tokens have to meet: what is written must not be
|
||||
// readable in the file a backup copies.
|
||||
func TestCalendarTokensAreNotStoredInTheClear(t *testing.T) {
|
||||
db, userID := sealedStore(t)
|
||||
ctx := context.Background()
|
||||
a := connectedAccount(t, db, userID)
|
||||
|
||||
var refresh, access string
|
||||
if err := db.QueryRowContext(ctx,
|
||||
`SELECT refresh_token, access_token FROM calendar_accounts WHERE id = ?`,
|
||||
a.ID).Scan(&refresh, &access); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if strings.Contains(refresh, "real-looking") || strings.Contains(access, "ya29") {
|
||||
t.Fatalf("a token is in the row as written: %q %q", refresh, access)
|
||||
}
|
||||
// The address stays readable, which is the reason for sealing named columns
|
||||
// rather than the whole row.
|
||||
var account string
|
||||
if err := db.QueryRowContext(ctx,
|
||||
`SELECT account FROM calendar_accounts WHERE id = ?`, a.ID).Scan(&account); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if account != "kw@nolimit.dk" {
|
||||
t.Errorf("the address was sealed too: %q", account)
|
||||
}
|
||||
|
||||
back, err := db.CalendarAccountFor(ctx, userID, "google")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if back.RefreshToken != a.RefreshToken || back.AccessToken != a.AccessToken {
|
||||
t.Errorf("the tokens did not survive the round trip: %+v", back)
|
||||
}
|
||||
}
|
||||
|
||||
// Connecting again must replace what was there, not fail. It is the same OAuth
|
||||
// flow run a second time, and the person's word for it is "connect", not "add".
|
||||
func TestConnectingAgainReplacesTheAccount(t *testing.T) {
|
||||
db, userID := sealedStore(t)
|
||||
ctx := context.Background()
|
||||
first := connectedAccount(t, db, userID)
|
||||
|
||||
second := &CalendarAccount{
|
||||
UserID: userID, Provider: "google", Account: "kw@nolimit.dk",
|
||||
RefreshToken: "1//0-fresh", AccessToken: "ya29.fresh",
|
||||
}
|
||||
if err := db.SaveCalendarAccount(ctx, second); err != nil {
|
||||
t.Fatalf("connecting a second time failed: %v", err)
|
||||
}
|
||||
// And the id in hand is the row that is actually there. The calendars hang off
|
||||
// it, so an id nothing points at would attach them to nothing.
|
||||
if second.ID != first.ID {
|
||||
t.Errorf("the second connect came back with id %q, want the existing %q",
|
||||
second.ID, first.ID)
|
||||
}
|
||||
|
||||
back, err := db.CalendarAccountFor(ctx, userID, "google")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if back.RefreshToken != "1//0-fresh" {
|
||||
t.Errorf("the token came back as %q", back.RefreshToken)
|
||||
}
|
||||
}
|
||||
|
||||
// Google says which calendars exist; only verdande knows which ones somebody wants
|
||||
// to look at. A refresh that came back with the same list must not undo the choice.
|
||||
func TestRefreshingTheListKeepsWhatWasChosen(t *testing.T) {
|
||||
db, userID := sealedStore(t)
|
||||
ctx := context.Background()
|
||||
a := connectedAccount(t, db, userID)
|
||||
|
||||
list := []Calendar{
|
||||
{RemoteID: "primary", Name: "kw@nolimit.dk", Colour: "#3f51b5", Primary: true},
|
||||
{RemoteID: "fam", Name: "Familien", Colour: "#0b8043"},
|
||||
{RemoteID: "old", Name: "Et delt"},
|
||||
}
|
||||
if err := db.ReplaceCalendars(ctx, a.ID, list); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
// Nothing is shown to begin with: an account with a dozen shared calendars in
|
||||
// it should not fill somebody's grid the moment they connect it.
|
||||
stored, err := db.Calendars(ctx, a.ID)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if len(stored) != 3 {
|
||||
t.Fatalf("got %d calendars, want 3", len(stored))
|
||||
}
|
||||
for _, c := range stored {
|
||||
if c.Shown {
|
||||
t.Errorf("%q was shown without anybody asking for it", c.Name)
|
||||
}
|
||||
}
|
||||
|
||||
var famID string
|
||||
for _, c := range stored {
|
||||
if c.RemoteID == "fam" {
|
||||
famID = c.ID
|
||||
}
|
||||
}
|
||||
if err := db.ShowCalendars(ctx, a.ID, []string{famID}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
// The sweep runs again, and one calendar has been renamed and one has gone.
|
||||
if err := db.ReplaceCalendars(ctx, a.ID, []Calendar{
|
||||
{RemoteID: "primary", Name: "kw@nolimit.dk", Colour: "#3f51b5", Primary: true},
|
||||
{RemoteID: "fam", Name: "Familien og hunden", Colour: "#0b8043"},
|
||||
}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
stored, err = db.Calendars(ctx, a.ID)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if len(stored) != 2 {
|
||||
t.Fatalf("got %d calendars; one that has left the account should stop being drawn",
|
||||
len(stored))
|
||||
}
|
||||
for _, c := range stored {
|
||||
switch c.RemoteID {
|
||||
case "fam":
|
||||
if !c.Shown {
|
||||
t.Error("the choice was undone by a refresh of the list")
|
||||
}
|
||||
if c.Name != "Familien og hunden" {
|
||||
t.Errorf("the new name did not arrive: %q", c.Name)
|
||||
}
|
||||
if c.ID != famID {
|
||||
t.Error("the row was rebuilt rather than updated; its id is what was chosen")
|
||||
}
|
||||
case "primary":
|
||||
if c.Shown {
|
||||
t.Error("a calendar nobody chose became shown")
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// A window is replaced, not merged. An event moved out of it has to disappear
|
||||
// because it is absent from the answer — and the months on either side must not go
|
||||
// with it.
|
||||
func TestReplacingAWindowLeavesTheMonthsAroundItAlone(t *testing.T) {
|
||||
db, userID := sealedStore(t)
|
||||
ctx := context.Background()
|
||||
a := connectedAccount(t, db, userID)
|
||||
|
||||
if err := db.ReplaceCalendars(ctx, a.ID, []Calendar{{RemoteID: "primary", Name: "Min"}}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
stored, _ := db.Calendars(ctx, a.ID)
|
||||
cal := stored[0]
|
||||
if err := db.ShowCalendars(ctx, a.ID, []string{cal.ID}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
july := CalendarEvent{RemoteID: "j", Summary: "Juli", StartDay: "2026-07-15", EndDay: "2026-07-15"}
|
||||
august := CalendarEvent{RemoteID: "a", Summary: "August", StartDay: "2026-08-15", EndDay: "2026-08-15"}
|
||||
if err := db.ReplaceCalendarEvents(ctx, cal.ID, "2026-07-01", "2026-07-31",
|
||||
[]CalendarEvent{july}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if err := db.ReplaceCalendarEvents(ctx, cal.ID, "2026-08-01", "2026-08-31",
|
||||
[]CalendarEvent{august}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
got, err := db.CalendarEvents(ctx, userID, "2026-07-01", "2026-08-31")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if len(got) != 2 {
|
||||
t.Fatalf("got %d events, want both months: %+v", len(got), got)
|
||||
}
|
||||
|
||||
// August is synced again and the meeting has been cancelled. July stays.
|
||||
if err := db.ReplaceCalendarEvents(ctx, cal.ID, "2026-08-01", "2026-08-31", nil); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
got, err = db.CalendarEvents(ctx, userID, "2026-07-01", "2026-08-31")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if len(got) != 1 || got[0].Summary != "Juli" {
|
||||
t.Fatalf("got %+v; syncing August threw away July", got)
|
||||
}
|
||||
}
|
||||
|
||||
// The grid asks "which cells does this cover", so an event that straddles the edge
|
||||
// of the question has to come back.
|
||||
func TestAnEventThatStraddlesTheWindowIsFound(t *testing.T) {
|
||||
db, userID := sealedStore(t)
|
||||
ctx := context.Background()
|
||||
a := connectedAccount(t, db, userID)
|
||||
if err := db.ReplaceCalendars(ctx, a.ID, []Calendar{{RemoteID: "c", Name: "Min", Colour: "#0b8043"}}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
stored, _ := db.Calendars(ctx, a.ID)
|
||||
if err := db.ShowCalendars(ctx, a.ID, []string{stored[0].ID}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if err := db.ReplaceCalendarEvents(ctx, stored[0].ID, "2026-08-01", "2026-09-30",
|
||||
[]CalendarEvent{
|
||||
{RemoteID: "trip", Summary: "Aarhus", StartDay: "2026-08-28", EndDay: "2026-09-02", AllDay: true},
|
||||
}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
// A week that contains neither end of it.
|
||||
got, err := db.CalendarEvents(ctx, userID, "2026-08-31", "2026-09-01")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if len(got) != 1 {
|
||||
t.Fatalf("got %+v; an event covering the whole week was not found", got)
|
||||
}
|
||||
// The calendar's own colour rides along, or the chip has to ask for it per row.
|
||||
if got[0].Colour != "#0b8043" || got[0].CalendarName != "Min" {
|
||||
t.Errorf("the calendar did not come with the event: %+v", got[0])
|
||||
}
|
||||
}
|
||||
|
||||
// Somebody else's calendar is somebody else's.
|
||||
func TestOnlyTheOwnersEventsComeBack(t *testing.T) {
|
||||
db, userID := sealedStore(t)
|
||||
ctx := context.Background()
|
||||
|
||||
other := &User{Email: "andreas@example.dk", Name: "Andreas"}
|
||||
if err := db.CreateUser(ctx, other, "Indbakke"); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
theirs := &CalendarAccount{UserID: other.ID, Provider: "google", RefreshToken: "r"}
|
||||
if err := db.SaveCalendarAccount(ctx, theirs); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if err := db.ReplaceCalendars(ctx, theirs.ID, []Calendar{{RemoteID: "c", Name: "Deres"}}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
stored, _ := db.Calendars(ctx, theirs.ID)
|
||||
if err := db.ShowCalendars(ctx, theirs.ID, []string{stored[0].ID}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if err := db.ReplaceCalendarEvents(ctx, stored[0].ID, "2026-08-01", "2026-08-31",
|
||||
[]CalendarEvent{{RemoteID: "x", Summary: "Privat", StartDay: "2026-08-10", EndDay: "2026-08-10"}}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
got, err := db.CalendarEvents(ctx, userID, "2026-08-01", "2026-08-31")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if len(got) != 0 {
|
||||
t.Fatalf("somebody else's calendar came back: %+v", got)
|
||||
}
|
||||
}
|
||||
|
||||
// A calendar turned off stops being drawn, and stops costing the grid anything.
|
||||
func TestTurningACalendarOffRemovesItsEvents(t *testing.T) {
|
||||
db, userID := sealedStore(t)
|
||||
ctx := context.Background()
|
||||
a := connectedAccount(t, db, userID)
|
||||
if err := db.ReplaceCalendars(ctx, a.ID, []Calendar{{RemoteID: "c", Name: "Min"}}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
stored, _ := db.Calendars(ctx, a.ID)
|
||||
if err := db.ShowCalendars(ctx, a.ID, []string{stored[0].ID}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if err := db.ReplaceCalendarEvents(ctx, stored[0].ID, "2026-08-01", "2026-08-31",
|
||||
[]CalendarEvent{{RemoteID: "x", Summary: "Møde", StartDay: "2026-08-10", EndDay: "2026-08-10"}}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
if err := db.ShowCalendars(ctx, a.ID, nil); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
var count int
|
||||
if err := db.QueryRowContext(ctx, `SELECT count(*) FROM calendar_events`).Scan(&count); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if count != 0 {
|
||||
t.Errorf("%d events of a calendar nobody is looking at are still in the table", count)
|
||||
}
|
||||
}
|
||||
|
||||
// Disconnecting takes the calendars and the events with it. Unlike the tasks a
|
||||
// mailbox made, none of this is the person's own work — it is a copy of somebody
|
||||
// else's calendar and it means nothing without the account.
|
||||
func TestDisconnectingTakesEverythingWithIt(t *testing.T) {
|
||||
db, userID := sealedStore(t)
|
||||
ctx := context.Background()
|
||||
a := connectedAccount(t, db, userID)
|
||||
if err := db.ReplaceCalendars(ctx, a.ID, []Calendar{{RemoteID: "c", Name: "Min"}}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
stored, _ := db.Calendars(ctx, a.ID)
|
||||
if err := db.ShowCalendars(ctx, a.ID, []string{stored[0].ID}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if err := db.ReplaceCalendarEvents(ctx, stored[0].ID, "2026-08-01", "2026-08-31",
|
||||
[]CalendarEvent{{RemoteID: "x", Summary: "Møde", StartDay: "2026-08-10", EndDay: "2026-08-10"}}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
if err := db.DeleteCalendarAccount(ctx, userID, a.ID); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
for _, table := range []string{"calendar_accounts", "calendars", "calendar_events"} {
|
||||
var count int
|
||||
if err := db.QueryRowContext(ctx, `SELECT count(*) FROM `+table).Scan(&count); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if count != 0 {
|
||||
t.Errorf("%s still holds %d rows after disconnecting", table, count)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// The sweep finds people by the presence of an account, so it has to keep working
|
||||
// now that the credential in it is ciphertext.
|
||||
func TestTheSweepFindsAConnectedCalendar(t *testing.T) {
|
||||
db, userID := sealedStore(t)
|
||||
connectedAccount(t, db, userID)
|
||||
|
||||
users, err := db.UsersWithCalendars(context.Background())
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if len(users) != 1 || users[0] != userID {
|
||||
t.Fatalf("the sweep found %v", users)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,111 @@
|
||||
-- Calendars read from somewhere else: the account, the calendars in it, and the
|
||||
-- events they hold.
|
||||
--
|
||||
-- Not in `mailboxes`, and it was the first thing considered. The two look alike
|
||||
-- from a distance — a person connects a Google account over OAuth, tokens are
|
||||
-- sealed, a sweep polls it — and every column past that disagrees. `trigger_kind`,
|
||||
-- `seen`, `last_uid` and `project_id` all answer "what turns a message into a
|
||||
-- task", and nothing here turns into a task. What is here instead is a *set*:
|
||||
-- one account holds many calendars, and a person picks which of them to look at.
|
||||
-- `mailboxes` has no room for a one-to-many, and giving it one would push the
|
||||
-- other kind's columns onto rows that can never use them.
|
||||
--
|
||||
-- The decisive part is smaller and more practical. `mailboxes.kind` carries
|
||||
-- `CHECK (kind IN ('gmail', 'imap'))`, and SQLite cannot alter a CHECK — adding a
|
||||
-- third value means rebuilding the table with foreign keys off, which is the
|
||||
-- expensive, careful thing migration 0021 had to do for a reason. Paying that to
|
||||
-- store something that shares no column with the table is the wrong trade.
|
||||
--
|
||||
-- Hence no CHECK on `provider` here. CalDAV is the next source to read, and it
|
||||
-- should cost a row, not a rebuild.
|
||||
|
||||
-- One connected account per person per provider. The tokens live here rather than
|
||||
-- on each calendar: a refresh token copied onto ten rows is ten copies of one
|
||||
-- secret, ten refreshes racing each other, and ten places to miss when access is
|
||||
-- revoked.
|
||||
--
|
||||
-- `refresh_token` and `access_token` are written sealed; see internal/secret. The
|
||||
-- store's own seal/unseal only covers the settings tables, so this table's methods
|
||||
-- call them by hand — the same fact worth knowing that migration 0014 wrote down.
|
||||
CREATE TABLE calendar_accounts (
|
||||
id TEXT PRIMARY KEY,
|
||||
user_id TEXT NOT NULL REFERENCES users (id) ON DELETE CASCADE,
|
||||
provider TEXT NOT NULL DEFAULT 'google',
|
||||
-- The address the account reports, so the settings page can say which one is
|
||||
-- connected rather than only that one is.
|
||||
account TEXT NOT NULL DEFAULT '',
|
||||
|
||||
refresh_token TEXT NOT NULL DEFAULT '',
|
||||
access_token TEXT NOT NULL DEFAULT '',
|
||||
expires_at INTEGER NOT NULL DEFAULT 0,
|
||||
|
||||
last_sync_at INTEGER NOT NULL DEFAULT 0,
|
||||
created_at INTEGER NOT NULL
|
||||
);
|
||||
|
||||
-- Connecting again replaces what was there, the way Gmail's does: the OAuth flow
|
||||
-- is one account at a time, so a second row for the same provider would be a
|
||||
-- second set of tokens for the same grant and no way to say which is live.
|
||||
CREATE UNIQUE INDEX calendar_accounts_once ON calendar_accounts (user_id, provider);
|
||||
|
||||
-- One row per calendar the account can see, kept whether or not it is shown.
|
||||
--
|
||||
-- `shown` rather than deleting the ones that are not: a person who turns a calendar
|
||||
-- off and on again should get the same row back, and the list is refreshed from
|
||||
-- Google on every sync — so a calendar that only existed while it was ticked would
|
||||
-- lose its choice every time somebody added a new one.
|
||||
--
|
||||
-- `colour` is Google's own hex for the calendar. Not one of verdande's ten named
|
||||
-- colours, which is the rule everywhere else in this database: those are names so
|
||||
-- the interface can restyle them per theme, and they are *verdande's* palette. A
|
||||
-- Google calendar is told apart by the colour the person already knows it by, and
|
||||
-- that colour belongs to Google.
|
||||
CREATE TABLE calendars (
|
||||
id TEXT PRIMARY KEY,
|
||||
account_id TEXT NOT NULL REFERENCES calendar_accounts (id) ON DELETE CASCADE,
|
||||
-- The id Google knows it by. Long, and an address for the primary calendar.
|
||||
remote_id TEXT NOT NULL,
|
||||
name TEXT NOT NULL DEFAULT '',
|
||||
colour TEXT NOT NULL DEFAULT '',
|
||||
time_zone TEXT NOT NULL DEFAULT '',
|
||||
primary_one INTEGER NOT NULL DEFAULT 0,
|
||||
writable INTEGER NOT NULL DEFAULT 0,
|
||||
shown INTEGER NOT NULL DEFAULT 0,
|
||||
sort_order INTEGER NOT NULL DEFAULT 0
|
||||
);
|
||||
|
||||
CREATE UNIQUE INDEX calendars_once ON calendars (account_id, remote_id);
|
||||
|
||||
-- The events themselves, cached.
|
||||
--
|
||||
-- Cached rather than fetched per view, and the reason is what a month grid does:
|
||||
-- it pages. Asking Google on every arrow press means a token refresh, a round trip
|
||||
-- and a spinner for a question that was answered ninety seconds ago — and a
|
||||
-- calendar that is slower than the calendar it is showing is not worth having.
|
||||
-- The window is refreshed by the sweep and by the "fetch now" button.
|
||||
--
|
||||
-- Days rather than instants, and both ends inclusive. A grid asks one question —
|
||||
-- "which cells does this cover" — and `start_day <= ? AND end_day >= ?` is that
|
||||
-- question. `starts_at` is kept as Google wrote it, offset and all, because it is
|
||||
-- what the chip shows and reparsing it here would ask *this process* what time
|
||||
-- zone it is in. An all-day event has neither: it has a day, not a moment, and
|
||||
-- inventing midnight for it is how an event moves a day when a container moves
|
||||
-- time zone.
|
||||
CREATE TABLE calendar_events (
|
||||
id TEXT PRIMARY KEY,
|
||||
calendar_id TEXT NOT NULL REFERENCES calendars (id) ON DELETE CASCADE,
|
||||
remote_id TEXT NOT NULL,
|
||||
summary TEXT NOT NULL DEFAULT '',
|
||||
starts_at TEXT NOT NULL DEFAULT '',
|
||||
ends_at TEXT NOT NULL DEFAULT '',
|
||||
start_day TEXT NOT NULL,
|
||||
end_day TEXT NOT NULL,
|
||||
all_day INTEGER NOT NULL DEFAULT 0,
|
||||
location TEXT NOT NULL DEFAULT '',
|
||||
url TEXT NOT NULL DEFAULT ''
|
||||
);
|
||||
|
||||
-- The one query there is: everything a person can see, between two days. Ordered
|
||||
-- by the account so the join has somewhere to start, then by the days the grid
|
||||
-- compares against.
|
||||
CREATE INDEX calendar_events_by_day ON calendar_events (calendar_id, start_day, end_day);
|
||||
Reference in New Issue
Block a user