reorganize

Signed-off-by: William Casarin <jb55@jb55.com>
This commit is contained in:
William Casarin
2022-04-11 10:34:35 -07:00
parent 37b5309dd4
commit 28790ccfab
13 changed files with 444 additions and 332 deletions

View File

@@ -64,11 +64,6 @@ enum Sheets: Identifiable {
}
}
enum NostrKind: Int {
case metadata = 0
case text = 1
}
struct ContentView: View {
@State var status: String = "Not connected"
@State var sub_id: String? = nil
@@ -228,22 +223,6 @@ struct ContentView_Previews: PreviewProvider {
}
}
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)
}
func get_metadata_since_time(_ metadata_event: NostrEvent?) -> Int64? {
@@ -281,7 +260,3 @@ func get_profiles()
*/
func add_rw_relay(_ pool: RelayPool, _ url: String) {
let url_ = URL(string: url)!
try! pool.add_relay(url_, info: RelayInfo.rw)
}

View File

@@ -1,17 +0,0 @@
//
// Nostr.swift
// damus
//
// Created by William Casarin on 2022-04-07.
//
import Foundation
struct Profile: Decodable {
let name: String?
let about: String?
let picture: String?
}

33
damus/Nostr/Nostr.swift Normal file
View File

@@ -0,0 +1,33 @@
//
// Nostr.swift
// damus
//
// Created by William Casarin on 2022-04-07.
//
import Foundation
struct Profile: Decodable {
let name: String?
let about: String?
let picture: String?
}
enum NostrKind: Int {
case metadata = 0
case text = 1
}
enum NostrTag {
case other_event(OtherEvent)
case key_event(KeyEvent)
}
struct NostrSubscription {
let sub_id: String
let filter: NostrFilter
}

View File

@@ -0,0 +1,43 @@
//
// NostrEvent.swift
// damus
//
// Created by William Casarin on 2022-04-11.
//
import Foundation
struct OtherEvent {
let event_id: String
let relay_url: String
}
struct KeyEvent {
let key: String
let relay_url: String
}
struct NostrEvent: Decodable, Identifiable {
let id: String
let pubkey: String
let created_at: Int64
let kind: Int
let tags: [[String]]
let content: String
let sig: String
}
func decode_nostr_event(txt: String) -> NostrResponse? {
return decode_data(Data(txt.utf8))
}
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
}

View File

@@ -0,0 +1,40 @@
//
// NostrFilter.swift
// damus
//
// Created by William Casarin on 2022-04-11.
//
import Foundation
struct NostrFilter: Codable {
var ids: [String]?
var kinds: [Int]?
var referenced_ids: [String]?
var pubkeys: [String]?
var since: Int64?
var until: Int64?
var authors: [String]?
private enum CodingKeys : String, CodingKey {
case ids
case kinds
case referenced_ids = "#e"
case pubkeys = "#p"
case since
case until
case authors
}
public static var filter_text: NostrFilter {
NostrFilter(ids: nil, kinds: [1], referenced_ids: nil, pubkeys: nil, since: nil, until: nil, authors: nil)
}
public static var filter_profiles: NostrFilter {
return NostrFilter(ids: nil, kinds: [0], referenced_ids: nil, pubkeys: nil, since: nil, until: nil, authors: nil)
}
public static func filter_since(_ val: Int64) -> NostrFilter {
return NostrFilter(ids: nil, kinds: nil, referenced_ids: nil, pubkeys: nil, since: val, until: nil, authors: nil)
}
}

View File

@@ -0,0 +1,39 @@
//
// NostrResponse.swift
// damus
//
// Created by William Casarin on 2022-04-11.
//
import Foundation
enum NostrResponse: Decodable {
case event(String, NostrEvent)
case notice(String)
init(from decoder: Decoder) throws {
var container = try decoder.unkeyedContainer()
// Only use first item
let typ = try container.decode(String.self)
if typ == "EVENT" {
let sub_id = try container.decode(String.self)
var ev: NostrEvent
do {
ev = try container.decode(NostrEvent.self)
} catch {
print(error)
throw error
}
self = .event(sub_id, ev)
return
} else if typ == "NOTICE" {
let msg = try container.decode(String.self)
self = .notice(msg)
return
}
throw DecodingError.dataCorrupted(.init(codingPath: [], debugDescription: "expected EVENT or NOTICE, got \(typ)"))
}
}

35
damus/Nostr/Relay.swift Normal file
View File

@@ -0,0 +1,35 @@
//
// Relay.swift
// damus
//
// Created by William Casarin on 2022-04-11.
//
import Foundation
struct RelayInfo {
let read: Bool
let write: Bool
static let rw = RelayInfo(read: true, write: true)
}
struct Relay: Identifiable {
let url: URL
let info: RelayInfo
let connection: RelayConnection
var id: String {
return get_relay_id(url)
}
}
enum RelayError: Error {
case RelayAlreadyExists
case RelayNotFound
}
func get_relay_id(_ url: URL) -> String {
return url.absoluteString
}

View File

@@ -0,0 +1,89 @@
//
// NostrConnection.swift
// damus
//
// Created by William Casarin on 2022-04-02.
//
import Foundation
import Starscream
enum NostrConnectionEvent {
case ws_event(WebSocketEvent)
case nostr_event(NostrResponse)
}
class RelayConnection: WebSocketDelegate {
var isConnected: Bool = false
var socket: WebSocket
var handleEvent: (NostrConnectionEvent) -> ()
init(url: URL, handleEvent: @escaping (NostrConnectionEvent) -> ()) {
var req = URLRequest(url: url)
req.timeoutInterval = 5
self.socket = WebSocket(request: req)
self.handleEvent = handleEvent
socket.delegate = self
}
func connect(){
socket.connect()
}
func disconnect() {
socket.disconnect()
}
func send(_ filters: [NostrFilter], sub_id: String) {
guard let req = make_nostr_req(filters, sub_id: sub_id) else {
print("failed to encode nostr req: \(filters)")
return
}
socket.write(string: req)
}
func didReceive(event: WebSocketEvent, client: WebSocket) {
switch event {
case .connected:
self.isConnected = true
case .disconnected: fallthrough
case .cancelled: fallthrough
case .error:
self.isConnected = false
case .text(let txt):
if let ev = decode_nostr_event(txt: txt) {
handleEvent(.nostr_event(ev))
return
}
print("decode failed for \(txt)")
// TODO: trigger event error
default:
break
}
handleEvent(.ws_event(event))
}
}
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
}

View File

@@ -0,0 +1,79 @@
//
// RelayPool.swift
// damus
//
// Created by William Casarin on 2022-04-11.
//
import Foundation
class RelayPool {
var relays: [Relay] = []
let custom_handle_event: (String, NostrConnectionEvent) -> ()
init(handle_event: @escaping (String, NostrConnectionEvent) -> ()) {
self.custom_handle_event = handle_event
}
func add_relay(_ url: URL, info: RelayInfo) throws {
let relay_id = get_relay_id(url)
if get_relay(relay_id) != nil {
throw RelayError.RelayAlreadyExists
}
let conn = RelayConnection(url: url) { event in
self.handle_event(relay_id: relay_id, event: event)
}
let relay = Relay(url: url, info: info, connection: conn)
self.relays.append(relay)
}
func connect(to: [String]? = nil) {
let relays = to.map{ get_relays($0) } ?? self.relays
for relay in relays {
relay.connection.connect()
}
}
func send(filters: [NostrFilter], sub_id: String, to: [String]? = nil) {
let relays = to.map{ get_relays($0) } ?? self.relays
for relay in relays {
if relay.connection.isConnected {
relay.connection.send(filters, sub_id: sub_id)
}
}
}
func get_relays(_ ids: [String]) -> [Relay] {
var relays: [Relay] = []
for id in ids {
if let relay = get_relay(id) {
relays.append(relay)
}
}
return relays
}
func get_relay(_ id: String) -> Relay? {
for relay in relays {
if relay.id == id {
return relay
}
}
return nil
}
func handle_event(relay_id: String, event: NostrConnectionEvent) {
// handle reconnect logic, etc?
custom_handle_event(relay_id, event)
}
}
func add_rw_relay(_ pool: RelayPool, _ url: String) {
let url_ = URL(string: url)!
try! pool.add_relay(url_, info: RelayInfo.rw)
}

View File

@@ -1,288 +0,0 @@
//
// NostrConnection.swift
// damus
//
// Created by William Casarin on 2022-04-02.
//
import Foundation
import Starscream
struct OtherEvent {
let event_id: String
let relay_url: String
}
struct KeyEvent {
let key: String
let relay_url: String
}
enum NostrConnectionEvent {
case ws_event(WebSocketEvent)
case nostr_event(NostrResponse)
}
enum NostrTag {
case other_event(OtherEvent)
case key_event(KeyEvent)
}
struct NostrSubscription {
let sub_id: String
let filter: NostrFilter
}
struct NostrFilter: Codable {
var ids: [String]?
var kinds: [Int]?
var referenced_ids: [String]?
var pubkeys: [String]?
var since: Int64?
var until: Int64?
var authors: [String]?
private enum CodingKeys : String, CodingKey {
case ids
case kinds
case referenced_ids = "#e"
case pubkeys = "#p"
case since
case until
case authors
}
public static var filter_text: NostrFilter {
NostrFilter(ids: nil, kinds: [1], referenced_ids: nil, pubkeys: nil, since: nil, until: nil, authors: nil)
}
public static var filter_profiles: NostrFilter {
return NostrFilter(ids: nil, kinds: [0], referenced_ids: nil, pubkeys: nil, since: nil, until: nil, authors: nil)
}
public static func filter_since(_ val: Int64) -> NostrFilter {
return NostrFilter(ids: nil, kinds: nil, referenced_ids: nil, pubkeys: nil, since: val, until: nil, authors: nil)
}
}
enum NostrResponse: Decodable {
case event(String, NostrEvent)
case notice(String)
init(from decoder: Decoder) throws {
var container = try decoder.unkeyedContainer()
// Only use first item
let typ = try container.decode(String.self)
if typ == "EVENT" {
let sub_id = try container.decode(String.self)
var ev: NostrEvent
do {
ev = try container.decode(NostrEvent.self)
} catch {
print(error)
throw error
}
self = .event(sub_id, ev)
return
} else if typ == "NOTICE" {
let msg = try container.decode(String.self)
self = .notice(msg)
return
}
throw DecodingError.dataCorrupted(.init(codingPath: [], debugDescription: "expected EVENT or NOTICE, got \(typ)"))
}
}
struct NostrEvent: Decodable, Identifiable {
let id: String
let pubkey: String
let created_at: Int64
let kind: Int
let tags: [[String]]
let content: String
let sig: String
}
struct RelayInfo {
let read: Bool
let write: Bool
static let rw = RelayInfo(read: true, write: true)
}
struct Relay: Identifiable {
let url: URL
let info: RelayInfo
let connection: RelayConnection
var id: String {
return get_relay_id(url)
}
}
func get_relay_id(_ url: URL) -> String {
return url.absoluteString
}
enum RelayError: Error {
case RelayAlreadyExists
case RelayNotFound
}
class RelayPool {
var relays: [Relay] = []
let custom_handle_event: (String, NostrConnectionEvent) -> ()
init(handle_event: @escaping (String, NostrConnectionEvent) -> ()) {
self.custom_handle_event = handle_event
}
func add_relay(_ url: URL, info: RelayInfo) throws {
let relay_id = get_relay_id(url)
if get_relay(relay_id) != nil {
throw RelayError.RelayAlreadyExists
}
let conn = RelayConnection(url: url) { event in
self.handle_event(relay_id: relay_id, event: event)
}
let relay = Relay(url: url, info: info, connection: conn)
self.relays.append(relay)
}
func connect(to: [String]? = nil) {
let relays = to.map{ get_relays($0) } ?? self.relays
for relay in relays {
relay.connection.connect()
}
}
func send(filters: [NostrFilter], sub_id: String, to: [String]? = nil) {
let relays = to.map{ get_relays($0) } ?? self.relays
for relay in relays {
if relay.connection.isConnected {
relay.connection.send(filters, sub_id: sub_id)
}
}
}
func get_relays(_ ids: [String]) -> [Relay] {
var relays: [Relay] = []
for id in ids {
if let relay = get_relay(id) {
relays.append(relay)
}
}
return relays
}
func get_relay(_ id: String) -> Relay? {
for relay in relays {
if relay.id == id {
return relay
}
}
return nil
}
func handle_event(relay_id: String, event: NostrConnectionEvent) {
// handle reconnect logic, etc?
custom_handle_event(relay_id, event)
}
}
class RelayConnection: WebSocketDelegate {
var isConnected: Bool = false
var socket: WebSocket
var handleEvent: (NostrConnectionEvent) -> ()
init(url: URL, handleEvent: @escaping (NostrConnectionEvent) -> ()) {
var req = URLRequest(url: url)
req.timeoutInterval = 5
self.socket = WebSocket(request: req)
self.handleEvent = handleEvent
socket.delegate = self
}
func connect(){
socket.connect()
}
func disconnect() {
socket.disconnect()
}
func send(_ filters: [NostrFilter], sub_id: String) {
guard let req = make_nostr_req(filters, sub_id: sub_id) else {
print("failed to encode nostr req: \(filters)")
return
}
socket.write(string: req)
}
func didReceive(event: WebSocketEvent, client: WebSocket) {
switch event {
case .connected:
self.isConnected = true
case .disconnected: fallthrough
case .cancelled: fallthrough
case .error:
self.isConnected = false
case .text(let txt):
if let ev = decode_nostr_event(txt: txt) {
handleEvent(.nostr_event(ev))
return
}
print("decode failed for \(txt)")
// TODO: trigger event error
default:
break
}
handleEvent(.ws_event(event))
}
}
func decode_nostr_event(txt: String) -> NostrResponse? {
return decode_data(Data(txt.utf8))
}
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
}

View File

@@ -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)
}