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nips/07.md
Laszlo Megyer ff1210fb56 Add nostr.pubkey variable for painless pubkey retrieval. 
The extension sets nostr.pubkey during initialization
so as the client can instantly see if somebody is logged in
or not. This allows the clients to detect if the user had
revoked the permission for reading the pubkey, or changed
to a different pubkey. All without nudging the user.
2024-12-09 14:06:30 +01:00

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NIP-07

window.nostr capability for web browsers

draft optional

The window.nostr object may be made available by web browsers or extensions and websites or web-apps may make use of it after checking its availability.

That object must define the following:

window.nostr.pubkey: string | null // variable set on page load to a public key or null if none authorized
async window.nostr.getPublicKey(): string // returns a public key as hex, sets `window.nostr.pubkey`, too.
async window.nostr.signEvent(event: { created_at: number, kind: number, tags: string[][], content: string }): Event // takes an event object, adds `id`, `pubkey` and `sig` and returns it

Aside from these three basic above, the following functions can also be implemented optionally:

async window.nostr.getRelays(): { [url: string]: {read: boolean, write: boolean} } // returns a basic map of relay urls to relay policies
async window.nostr.nip04.encrypt(pubkey, plaintext): string // returns ciphertext and iv as specified in nip-04 (deprecated)
async window.nostr.nip04.decrypt(pubkey, ciphertext): string // takes ciphertext and iv as specified in nip-04 (deprecated)
async window.nostr.nip44.encrypt(pubkey, plaintext): string // returns ciphertext as specified in nip-44
async window.nostr.nip44.decrypt(pubkey, ciphertext): string // takes ciphertext as specified in nip-44

Recommendation to Extension Authors

To make sure that the window.nostr is available to nostr clients on page load, the authors who create Chromium and Firefox extensions should load their scripts by specifying "run_at": "document_end" in the extension's manifest.

Implementation

See https://github.com/aljazceru/awesome-nostr#nip-07-browser-extensions.