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64 lines
2.4 KiB
Markdown
64 lines
2.4 KiB
Markdown
NIP-98
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======
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HTTP Auth
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-------------------------
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`draft` `optional` `author:kieran` `author:melvincarvalho`
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This NIP defines and ephemerial event used to authenticate requests to HTTP servers using nostr events.
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This is useful for HTTP services which are build for Nostr and deal with Nostr user accounts.
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## Nostr event
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A `kind 27235` (In reference to [RFC 7235](https://www.rfc-editor.org/rfc/rfc7235)) event is used.
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The `content` SHOULD be empty.
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The following tags are defined as REQUIRED.
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* `url` - absolute URL
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* `method` - HTTP Request Method
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Example event:
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```json
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{
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"id": "fe964e758903360f28d8424d092da8494ed207cba823110be3a57dfe4b578734",
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"pubkey": "63fe6318dc58583cfe16810f86dd09e18bfd76aabc24a0081ce2856f330504ed",
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"content": "",
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"kind": 27235,
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"created_at": 1682327852,
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"tags": [
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[
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"url",
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"https://api.snort.social/api/v1/n5sp/list"
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],
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[
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"method",
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"GET"
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]
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],
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"sig": "5ed9d8ec958bc854f997bdc24ac337d005af372324747efe4a00e24f4c30437ff4dd8308684bed467d9d6be3e5a517bb43b1732cc7d33949a3aaf86705c22184"
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}
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```
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Servers MUST perform the following checks in order to validate the event:
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1. The `kind` MUST be `27235`.
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2. The `created_at` MUST be within a reasonable time window (suggestion 60 seconds).
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3. The `url` tag MUST be exactly the same as the absolute request URL (including query parameters).
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4. The `method` tag MUST be the same HTTP method used for the requested resource.
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All other checks which server MAY do are OPTIONAL, and implementation specific.
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## Request Flow
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Using the `Authorization` header, the `kind 27235` event MUST be `base64` encoded and use the Authorization scheme `Nostr`
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Example HTTP Authorization header:
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```
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Authorization: Nostr 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```
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## References
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- C# ASP.NET `AuthenticationHandler` [NostrAuth.cs](https://gist.github.com/v0l/74346ae530896115bfe2504c8cd018d3) |