mirror of https://github.com/lukechilds/damus.git
William Casarin
3 years ago
13 changed files with 444 additions and 332 deletions
@ -1,17 +0,0 @@ |
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// |
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// Nostr.swift |
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// damus |
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// |
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// Created by William Casarin on 2022-04-07. |
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// |
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import Foundation |
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struct Profile: Decodable { |
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let name: String? |
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let about: String? |
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let picture: String? |
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} |
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@ -0,0 +1,33 @@ |
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// |
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// Nostr.swift |
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// damus |
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// |
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// Created by William Casarin on 2022-04-07. |
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// |
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import Foundation |
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struct Profile: Decodable { |
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let name: String? |
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let about: String? |
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let picture: String? |
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} |
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enum NostrKind: Int { |
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case metadata = 0 |
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case text = 1 |
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} |
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enum NostrTag { |
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case other_event(OtherEvent) |
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case key_event(KeyEvent) |
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} |
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struct NostrSubscription { |
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let sub_id: String |
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let filter: NostrFilter |
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} |
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@ -0,0 +1,43 @@ |
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// |
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// NostrEvent.swift |
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// damus |
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// |
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// Created by William Casarin on 2022-04-11. |
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// |
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import Foundation |
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struct OtherEvent { |
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let event_id: String |
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let relay_url: String |
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} |
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struct KeyEvent { |
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let key: String |
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let relay_url: String |
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} |
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struct NostrEvent: Decodable, Identifiable { |
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let id: String |
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let pubkey: String |
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let created_at: Int64 |
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let kind: Int |
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let tags: [[String]] |
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let content: String |
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let sig: String |
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} |
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func decode_nostr_event(txt: String) -> NostrResponse? { |
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return decode_data(Data(txt.utf8)) |
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} |
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func decode_data<T: Decodable>(_ data: Data) -> T? { |
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let decoder = JSONDecoder() |
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do { |
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return try decoder.decode(T.self, from: data) |
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} catch { |
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print("decode_data failed for \(T.self): \(error)") |
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} |
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return nil |
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} |
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@ -0,0 +1,40 @@ |
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// |
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// NostrFilter.swift |
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// damus |
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// |
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// Created by William Casarin on 2022-04-11. |
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// |
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import Foundation |
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struct NostrFilter: Codable { |
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var ids: [String]? |
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var kinds: [Int]? |
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var referenced_ids: [String]? |
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var pubkeys: [String]? |
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var since: Int64? |
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var until: Int64? |
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var authors: [String]? |
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private enum CodingKeys : String, CodingKey { |
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case ids |
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case kinds |
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case referenced_ids = "#e" |
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case pubkeys = "#p" |
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case since |
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case until |
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case authors |
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} |
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public static var filter_text: NostrFilter { |
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NostrFilter(ids: nil, kinds: [1], referenced_ids: nil, pubkeys: nil, since: nil, until: nil, authors: nil) |
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} |
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public static var filter_profiles: NostrFilter { |
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return NostrFilter(ids: nil, kinds: [0], referenced_ids: nil, pubkeys: nil, since: nil, until: nil, authors: nil) |
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} |
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public static func filter_since(_ val: Int64) -> NostrFilter { |
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return NostrFilter(ids: nil, kinds: nil, referenced_ids: nil, pubkeys: nil, since: val, until: nil, authors: nil) |
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} |
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} |
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@ -0,0 +1,39 @@ |
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// |
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// NostrResponse.swift |
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// damus |
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// |
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// Created by William Casarin on 2022-04-11. |
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// |
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import Foundation |
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enum NostrResponse: Decodable { |
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case event(String, NostrEvent) |
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case notice(String) |
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init(from decoder: Decoder) throws { |
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var container = try decoder.unkeyedContainer() |
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// Only use first item |
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let typ = try container.decode(String.self) |
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if typ == "EVENT" { |
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let sub_id = try container.decode(String.self) |
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var ev: NostrEvent |
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do { |
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ev = try container.decode(NostrEvent.self) |
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} catch { |
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print(error) |
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throw error |
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} |
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self = .event(sub_id, ev) |
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return |
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} else if typ == "NOTICE" { |
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let msg = try container.decode(String.self) |
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self = .notice(msg) |
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return |
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} |
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throw DecodingError.dataCorrupted(.init(codingPath: [], debugDescription: "expected EVENT or NOTICE, got \(typ)")) |
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} |
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} |
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@ -0,0 +1,35 @@ |
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// |
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// Relay.swift |
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// damus |
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// |
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// Created by William Casarin on 2022-04-11. |
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// |
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import Foundation |
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struct RelayInfo { |
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let read: Bool |
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let write: Bool |
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static let rw = RelayInfo(read: true, write: true) |
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} |
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struct Relay: Identifiable { |
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let url: URL |
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let info: RelayInfo |
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let connection: RelayConnection |
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var id: String { |
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return get_relay_id(url) |
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} |
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} |
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enum RelayError: Error { |
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case RelayAlreadyExists |
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case RelayNotFound |
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} |
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func get_relay_id(_ url: URL) -> String { |
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return url.absoluteString |
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} |
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@ -0,0 +1,89 @@ |
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// |
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// NostrConnection.swift |
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// damus |
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// |
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// Created by William Casarin on 2022-04-02. |
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// |
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import Foundation |
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import Starscream |
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enum NostrConnectionEvent { |
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case ws_event(WebSocketEvent) |
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case nostr_event(NostrResponse) |
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} |
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class RelayConnection: WebSocketDelegate { |
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var isConnected: Bool = false |
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var socket: WebSocket |
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var handleEvent: (NostrConnectionEvent) -> () |
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init(url: URL, handleEvent: @escaping (NostrConnectionEvent) -> ()) { |
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var req = URLRequest(url: url) |
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req.timeoutInterval = 5 |
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self.socket = WebSocket(request: req) |
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self.handleEvent = handleEvent |
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socket.delegate = self |
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} |
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func connect(){ |
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socket.connect() |
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} |
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func disconnect() { |
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socket.disconnect() |
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} |
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func send(_ filters: [NostrFilter], sub_id: String) { |
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guard let req = make_nostr_req(filters, sub_id: sub_id) else { |
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print("failed to encode nostr req: \(filters)") |
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return |
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} |
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socket.write(string: req) |
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} |
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func didReceive(event: WebSocketEvent, client: WebSocket) { |
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switch event { |
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case .connected: |
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self.isConnected = true |
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case .disconnected: fallthrough |
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case .cancelled: fallthrough |
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case .error: |
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self.isConnected = false |
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case .text(let txt): |
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if let ev = decode_nostr_event(txt: txt) { |
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handleEvent(.nostr_event(ev)) |
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return |
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} |
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print("decode failed for \(txt)") |
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// TODO: trigger event error |
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default: |
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break |
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} |
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handleEvent(.ws_event(event)) |
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} |
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} |
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func make_nostr_req(_ filters: [NostrFilter], sub_id: String) -> String? { |
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let encoder = JSONEncoder() |
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var req = "[\"REQ\",\"\(sub_id)\"" |
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for filter in filters { |
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req += "," |
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guard let filter_json = try? encoder.encode(filter) else { |
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return nil |
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} |
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let filter_json_str = String(decoding: filter_json, as: UTF8.self) |
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req += filter_json_str |
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} |
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req += "]" |
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print("req: \(req)") |
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return req |
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} |
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@ -0,0 +1,79 @@ |
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// |
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// RelayPool.swift |
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// damus |
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// |
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// Created by William Casarin on 2022-04-11. |
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// |
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import Foundation |
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class RelayPool { |
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var relays: [Relay] = [] |
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let custom_handle_event: (String, NostrConnectionEvent) -> () |
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init(handle_event: @escaping (String, NostrConnectionEvent) -> ()) { |
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self.custom_handle_event = handle_event |
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} |
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func add_relay(_ url: URL, info: RelayInfo) throws { |
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let relay_id = get_relay_id(url) |
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if get_relay(relay_id) != nil { |
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throw RelayError.RelayAlreadyExists |
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} |
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let conn = RelayConnection(url: url) { event in |
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self.handle_event(relay_id: relay_id, event: event) |
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} |
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let relay = Relay(url: url, info: info, connection: conn) |
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self.relays.append(relay) |
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} |
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func connect(to: [String]? = nil) { |
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let relays = to.map{ get_relays($0) } ?? self.relays |
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for relay in relays { |
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relay.connection.connect() |
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} |
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} |
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func send(filters: [NostrFilter], sub_id: String, to: [String]? = nil) { |
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let relays = to.map{ get_relays($0) } ?? self.relays |
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for relay in relays { |
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if relay.connection.isConnected { |
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relay.connection.send(filters, sub_id: sub_id) |
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} |
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} |
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} |
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func get_relays(_ ids: [String]) -> [Relay] { |
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var relays: [Relay] = [] |
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for id in ids { |
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if let relay = get_relay(id) { |
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relays.append(relay) |
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} |
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} |
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return relays |
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} |
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func get_relay(_ id: String) -> Relay? { |
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for relay in relays { |
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if relay.id == id { |
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return relay |
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} |
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} |
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return nil |
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} |
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func handle_event(relay_id: String, event: NostrConnectionEvent) { |
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// handle reconnect logic, etc? |
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custom_handle_event(relay_id, event) |
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} |
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} |
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func add_rw_relay(_ pool: RelayPool, _ url: String) { |
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let url_ = URL(string: url)! |
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try! pool.add_relay(url_, info: RelayInfo.rw) |
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} |
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@ -1,288 +0,0 @@ |
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// |
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// NostrConnection.swift |
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// damus |
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// |
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// Created by William Casarin on 2022-04-02. |
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// |
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import Foundation |
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import Starscream |
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struct OtherEvent { |
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let event_id: String |
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let relay_url: String |
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} |
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struct KeyEvent { |
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let key: String |
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let relay_url: String |
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} |
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enum NostrConnectionEvent { |
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case ws_event(WebSocketEvent) |
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case nostr_event(NostrResponse) |
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} |
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enum NostrTag { |
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case other_event(OtherEvent) |
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case key_event(KeyEvent) |
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} |
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struct NostrSubscription { |
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let sub_id: String |
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let filter: NostrFilter |
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} |
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struct NostrFilter: Codable { |
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var ids: [String]? |
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var kinds: [Int]? |
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var referenced_ids: [String]? |
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var pubkeys: [String]? |
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var since: Int64? |
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var until: Int64? |
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var authors: [String]? |
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private enum CodingKeys : String, CodingKey { |
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case ids |
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case kinds |
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case referenced_ids = "#e" |
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case pubkeys = "#p" |
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case since |
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case until |
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case authors |
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} |
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public static var filter_text: NostrFilter { |
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NostrFilter(ids: nil, kinds: [1], referenced_ids: nil, pubkeys: nil, since: nil, until: nil, authors: nil) |
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} |
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public static var filter_profiles: NostrFilter { |
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return NostrFilter(ids: nil, kinds: [0], referenced_ids: nil, pubkeys: nil, since: nil, until: nil, authors: nil) |
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} |
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public static func filter_since(_ val: Int64) -> NostrFilter { |
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return NostrFilter(ids: nil, kinds: nil, referenced_ids: nil, pubkeys: nil, since: val, until: nil, authors: nil) |
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} |
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} |
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enum NostrResponse: Decodable { |
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case event(String, NostrEvent) |
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case notice(String) |
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init(from decoder: Decoder) throws { |
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var container = try decoder.unkeyedContainer() |
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// Only use first item |
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let typ = try container.decode(String.self) |
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if typ == "EVENT" { |
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let sub_id = try container.decode(String.self) |
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var ev: NostrEvent |
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do { |
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ev = try container.decode(NostrEvent.self) |
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} catch { |
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print(error) |
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throw error |
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} |
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self = .event(sub_id, ev) |
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return |
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} else if typ == "NOTICE" { |
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let msg = try container.decode(String.self) |
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self = .notice(msg) |
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return |
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} |
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throw DecodingError.dataCorrupted(.init(codingPath: [], debugDescription: "expected EVENT or NOTICE, got \(typ)")) |
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} |
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} |
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struct NostrEvent: Decodable, Identifiable { |
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let id: String |
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let pubkey: String |
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let created_at: Int64 |
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let kind: Int |
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let tags: [[String]] |
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let content: String |
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let sig: String |
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} |
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struct RelayInfo { |
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let read: Bool |
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let write: Bool |
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static let rw = RelayInfo(read: true, write: true) |
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} |
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struct Relay: Identifiable { |
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let url: URL |
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let info: RelayInfo |
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let connection: RelayConnection |
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var id: String { |
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return get_relay_id(url) |
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} |
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} |
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func get_relay_id(_ url: URL) -> String { |
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return url.absoluteString |
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} |
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enum RelayError: Error { |
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case RelayAlreadyExists |
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case RelayNotFound |
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} |
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class RelayPool { |
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var relays: [Relay] = [] |
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let custom_handle_event: (String, NostrConnectionEvent) -> () |
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init(handle_event: @escaping (String, NostrConnectionEvent) -> ()) { |
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self.custom_handle_event = handle_event |
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} |
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func add_relay(_ url: URL, info: RelayInfo) throws { |
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let relay_id = get_relay_id(url) |
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if get_relay(relay_id) != nil { |
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throw RelayError.RelayAlreadyExists |
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} |
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let conn = RelayConnection(url: url) { event in |
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self.handle_event(relay_id: relay_id, event: event) |
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} |
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let relay = Relay(url: url, info: info, connection: conn) |
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self.relays.append(relay) |
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} |
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func connect(to: [String]? = nil) { |
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let relays = to.map{ get_relays($0) } ?? self.relays |
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for relay in relays { |
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relay.connection.connect() |
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} |
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} |
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func send(filters: [NostrFilter], sub_id: String, to: [String]? = nil) { |
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let relays = to.map{ get_relays($0) } ?? self.relays |
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for relay in relays { |
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if relay.connection.isConnected { |
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relay.connection.send(filters, sub_id: sub_id) |
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} |
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} |
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} |
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func get_relays(_ ids: [String]) -> [Relay] { |
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var relays: [Relay] = [] |
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|
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for id in ids { |
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if let relay = get_relay(id) { |
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relays.append(relay) |
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} |
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} |
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return relays |
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} |
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func get_relay(_ id: String) -> Relay? { |
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for relay in relays { |
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if relay.id == id { |
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return relay |
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} |
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} |
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|
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return nil |
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} |
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func handle_event(relay_id: String, event: NostrConnectionEvent) { |
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// handle reconnect logic, etc? |
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custom_handle_event(relay_id, event) |
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} |
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} |
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|
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class RelayConnection: WebSocketDelegate { |
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var isConnected: Bool = false |
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var socket: WebSocket |
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var handleEvent: (NostrConnectionEvent) -> () |
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|
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init(url: URL, handleEvent: @escaping (NostrConnectionEvent) -> ()) { |
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var req = URLRequest(url: url) |
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req.timeoutInterval = 5 |
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self.socket = WebSocket(request: req) |
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self.handleEvent = handleEvent |
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socket.delegate = self |
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} |
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func connect(){ |
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socket.connect() |
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} |
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func disconnect() { |
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socket.disconnect() |
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} |
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func send(_ filters: [NostrFilter], sub_id: String) { |
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guard let req = make_nostr_req(filters, sub_id: sub_id) else { |
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print("failed to encode nostr req: \(filters)") |
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return |
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} |
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socket.write(string: req) |
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} |
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|
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func didReceive(event: WebSocketEvent, client: WebSocket) { |
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switch event { |
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case .connected: |
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self.isConnected = true |
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|
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case .disconnected: fallthrough |
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case .cancelled: fallthrough |
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case .error: |
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self.isConnected = false |
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|
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case .text(let txt): |
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if let ev = decode_nostr_event(txt: txt) { |
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handleEvent(.nostr_event(ev)) |
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return |
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} |
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|
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print("decode failed for \(txt)") |
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// TODO: trigger event error |
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|
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default: |
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break |
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} |
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|
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handleEvent(.ws_event(event)) |
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} |
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|
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} |
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|
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func decode_nostr_event(txt: String) -> NostrResponse? { |
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return decode_data(Data(txt.utf8)) |
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} |
|||
|
|||
func decode_data<T: Decodable>(_ data: Data) -> T? { |
|||
let decoder = JSONDecoder() |
|||
do { |
|||
return try decoder.decode(T.self, from: data) |
|||
} catch { |
|||
print("decode_data failed for \(T.self): \(error)") |
|||
} |
|||
|
|||
return nil |
|||
} |
|||
|
|||
func make_nostr_req(_ filters: [NostrFilter], sub_id: String) -> String? { |
|||
let encoder = JSONEncoder() |
|||
var req = "[\"REQ\",\"\(sub_id)\"" |
|||
for filter in filters { |
|||
req += "," |
|||
guard let filter_json = try? encoder.encode(filter) else { |
|||
return nil |
|||
} |
|||
let filter_json_str = String(decoding: filter_json, as: UTF8.self) |
|||
req += filter_json_str |
|||
} |
|||
req += "]" |
|||
print("req: \(req)") |
|||
return req |
|||
} |
|||
|
|||
@ -0,0 +1,26 @@ |
|||
// |
|||
// PostButton.swift |
|||
// damus |
|||
// |
|||
// Created by William Casarin on 2022-04-11. |
|||
// |
|||
|
|||
import Foundation |
|||
import SwiftUI |
|||
|
|||
func PostButton(action: @escaping () -> ()) -> some View { |
|||
return Button(action: action, label: { |
|||
Text("+") |
|||
.font(.system(.largeTitle)) |
|||
.frame(width: 57, height: 50) |
|||
.foregroundColor(Color.white) |
|||
.padding(.bottom, 7) |
|||
}) |
|||
.background(Color.blue) |
|||
.cornerRadius(38.5) |
|||
.padding() |
|||
.shadow(color: Color.black.opacity(0.3), |
|||
radius: 3, |
|||
x: 3, |
|||
y: 3) |
|||
} |
|||
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Reference in new issue