diff options
| -rw-r--r-- | src/routes/(app)/migrate/+page.server.ts | 10 | ||||
| -rw-r--r-- | src/routes/(app)/migrate/+page.svelte | 118 |
2 files changed, 128 insertions, 0 deletions
diff --git a/src/routes/(app)/migrate/+page.server.ts b/src/routes/(app)/migrate/+page.server.ts new file mode 100644 index 00000000..4529c14c --- /dev/null +++ b/src/routes/(app)/migrate/+page.server.ts @@ -0,0 +1,10 @@ +import { redirect } from "@sveltejs/kit"; + +export async function load({ parent, url }) { + const { user } = await parent(); + if (!user) redirect(307, `/login?redirect=${encodeURIComponent(url.pathname + url.search)}`); + return { + to: url.searchParams.get("to") || "", + back: url.searchParams.get("back") || "", + }; +} diff --git a/src/routes/(app)/migrate/+page.svelte b/src/routes/(app)/migrate/+page.svelte new file mode 100644 index 00000000..4493709b --- /dev/null +++ b/src/routes/(app)/migrate/+page.svelte @@ -0,0 +1,118 @@ +<script> + // Migrate a legacy coinos account to coinos v3. + // + // v3 sends the user here with ?to=<their new payment address>&back=<url>. + // They are already signed in on this site, so nothing has to handle their + // password: we sweep the balance over Lightning to the new wallet and then + // release the username, which lets v3 claim it on the new registrar. + import { post, success } from "$lib/utils"; + import { goto } from "$app/navigation"; + + let { data } = $props(); + let { user, to, back } = $derived(data); + + let step = $state("intro"); // intro | working | done | error + let note = $state(""); + let error = $state(""); + let pin = $state(""); + let sent = $state(0); + + let balance = $derived(user?.balance || 0); + // Lightning routing takes a cut on the way out; leave a little behind so + // the sweep can't fail for being a few sats over. + let reserve = $derived(Math.max(10, Math.ceil(balance * 0.005))); + let amount = $derived(Math.max(0, balance - reserve)); + let newName = $derived(`${user?.username}_v2`); + + // Ask the v3 registrar for an invoice for this amount (LNURL-pay against + // the destination address). The registrar is CORS-open. + async function invoiceFor(address, sats) { + const [name, domain] = String(address).split("@"); + if (!name || !domain) throw new Error("bad destination address"); + const base = "https://names.coinos.io"; + const p = await fetch(`${base}/.well-known/lnurlp/${name}?domain=${domain}`).then((r) => r.json()); + if (!p?.callback) throw new Error(p?.reason || "destination not found"); + const msat = sats * 1000; + if (msat < p.minSendable || msat > p.maxSendable) throw new Error("amount out of range for the destination"); + const inv = await fetch(`${p.callback}${p.callback.includes("?") ? "&" : "?"}amount=${msat}`).then((r) => r.json()); + if (!inv?.pr) throw new Error(inv?.reason || "could not get an invoice"); + return inv.pr; + } + + async function migrate() { + error = ""; + step = "working"; + try { + if (amount > 0) { + note = "Getting an invoice from your new wallet…"; + const payreq = await invoiceFor(to, amount); + note = `Sending ${amount.toLocaleString()} sats…`; + await post("/payments", { payreq, ...(pin ? { pin } : {}) }); + sent = amount; + } + note = "Releasing your username…"; + await post("/user", { username: newName, ...(pin ? { pin } : {}) }); + step = "done"; + success("Migrated"); + } catch (e) { + error = String(e && e.message ? e.message : e); + step = "error"; + } + } + + function goBack() { + const url = new URL(back || "https://v3.coinos.io/"); + url.searchParams.set("migrated", user.username); + goto(url.toString(), { replaceState: true }); + } +</script> + +<div class="max-w-md mx-auto p-4 space-y-5"> + <h1 class="text-2xl font-bold">Move your account to coinos v3</h1> + + {#if !to} + <p class="text-red-600"> + This page needs a destination. Start the migration from coinos v3. + </p> + {:else if step === "done"} + <div class="space-y-3"> + <p class="text-xl">✓ All done!</p> + {#if sent} + <p>{sent.toLocaleString()} sats are on their way to your new wallet.</p> + {/if} + <p> + Your old username was released, so <strong>{user.username}</strong> can now be + yours on coinos v3. + </p> + <button class="btn btn-primary w-full" onclick={goBack}>Back to coinos v3</button> + </div> + {:else if step === "working"} + <p>{note}</p> + <progress class="progress w-full"></progress> + {:else} + <div class="space-y-3"> + <p> + This moves your balance to your new wallet and frees up your username so you can + keep it there. Your old account stays, renamed to + <strong>{newName}</strong>, and stops receiving payments. + </p> + <div class="rounded-xl border p-3 space-y-1"> + <div class="flex justify-between"><span>Balance</span><strong>{balance.toLocaleString()} sats</strong></div> + <div class="flex justify-between"><span>Sending</span><strong>{amount.toLocaleString()} sats</strong></div> + <div class="flex justify-between text-sm opacity-60"><span>Left for routing</span><span>{reserve.toLocaleString()} sats</span></div> + <div class="flex justify-between break-all gap-2"><span>To</span><span>{to}</span></div> + </div> + {#if user?.haspin} + <input class="input input-bordered w-full" type="password" inputmode="numeric" + placeholder="Your PIN" bind:value={pin} /> + {/if} + {#if error}<p class="text-red-600">{error}</p>{/if} + <button class="btn btn-primary w-full" onclick={migrate} disabled={!to}> + Move {amount.toLocaleString()} sats and release {user.username} + </button> + <p class="text-sm opacity-60"> + You can also do nothing — your old account keeps working as it is. + </p> + </div> + {/if} +</div> |