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Add nip44 encrypt/decrypt example to demo project #204

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Jan 5, 2025
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Merged

Add nip44 encrypt/decrypt example to demo project #204

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10 changes: 9 additions & 1 deletion demo/NostrSDKDemo.xcodeproj/project.pbxproj
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,8 @@
objects = {

/* Begin PBXBuildFile section */
1F73BD012D24432B00C49147 /* EncryptMessageDemoView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1F73BD002D24432B00C49147 /* EncryptMessageDemoView.swift */; };
1F73BD032D24491500C49147 /* DecryptMessageDemoView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1F73BD022D24491500C49147 /* DecryptMessageDemoView.swift */; };
3A114FB42B0178AB00ABDBB0 /* NostrSDK in Frameworks */ = {isa = PBXBuildFile; productRef = 3A114FB32B0178AB00ABDBB0 /* NostrSDK */; };
3AA4CD712C06523D0060554E /* LegacyDirectMessageDemoView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3AA4CD702C06523D0060554E /* LegacyDirectMessageDemoView.swift */; };
50BB70A12B4302F300EDD3B5 /* RelaysView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 50BB70A02B4302F300EDD3B5 /* RelaysView.swift */; };
Expand All @@ -24,6 +26,8 @@
/* End PBXBuildFile section */

/* Begin PBXFileReference section */
1F73BD002D24432B00C49147 /* EncryptMessageDemoView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EncryptMessageDemoView.swift; sourceTree = "<group>"; };
1F73BD022D24491500C49147 /* DecryptMessageDemoView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DecryptMessageDemoView.swift; sourceTree = "<group>"; };
3AA4CD702C06523D0060554E /* LegacyDirectMessageDemoView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LegacyDirectMessageDemoView.swift; sourceTree = "<group>"; };
50BB70A02B4302F300EDD3B5 /* RelaysView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RelaysView.swift; sourceTree = "<group>"; };
F78221C02A87FB39008D5AE8 /* ConnectRelayView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConnectRelayView.swift; sourceTree = "<group>"; };
Expand Down Expand Up @@ -55,9 +59,11 @@
F78221BC2A87EF6C008D5AE8 /* Demo Views */ = {
isa = PBXGroup;
children = (
1F73BD022D24491500C49147 /* DecryptMessageDemoView.swift */,
1F73BD002D24432B00C49147 /* EncryptMessageDemoView.swift */,
F7CB36402A3ACD530098F35C /* GenerateKeyDemoView.swift */,
3AA4CD702C06523D0060554E /* LegacyDirectMessageDemoView.swift */,
F7CB36462A3B74380098F35C /* NIP05VerificationDemoView.swift */,
F7CB36402A3ACD530098F35C /* GenerateKeyDemoView.swift */,
F786D8F62A3BAED800A29915 /* QueryRelayDemoView.swift */,
);
path = "Demo Views";
Expand Down Expand Up @@ -205,6 +211,7 @@
buildActionMask = 2147483647;
files = (
F7CB362E2A35127B0098F35C /* ContentView.swift in Sources */,
1F73BD012D24432B00C49147 /* EncryptMessageDemoView.swift in Sources */,
F7CB362C2A35127B0098F35C /* NostrSDKDemoApp.swift in Sources */,
F7CB36472A3B74380098F35C /* NIP05VerificationDemoView.swift in Sources */,
F78221C42A8803F3008D5AE8 /* Helpers.swift in Sources */,
Expand All @@ -215,6 +222,7 @@
F78221CE2A8999F9008D5AE8 /* KeyInputSectionView.swift in Sources */,
F7CB36412A3ACD530098F35C /* GenerateKeyDemoView.swift in Sources */,
F7CB36432A3ACD7B0098F35C /* ListOptionView.swift in Sources */,
1F73BD032D24491500C49147 /* DecryptMessageDemoView.swift in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};
Expand Down
8 changes: 8 additions & 0 deletions demo/NostrSDKDemo/ContentView.swift
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Expand Up @@ -26,6 +26,14 @@ struct ContentView: View {
AnyView(LegacyDirectMessageDemoView()),
imageName: "list.bullet",
labelText: "NIP-04 Direct Message")
ListOptionView(destinationView:
AnyView(EncryptMessageDemoView()),
imageName: "list.bullet",
labelText: "NIP-44 Encrypt")
ListOptionView(destinationView:
AnyView(DecryptMessageDemoView()),
imageName: "list.bullet",
labelText: "NIP-44 Decrypt")
ListOptionView(destinationView: AnyView(GenerateKeyDemoView()),
imageName: "key",
labelText: "Key Generation")
Expand Down
89 changes: 89 additions & 0 deletions demo/NostrSDKDemo/Demo Views/DecryptMessageDemoView.swift
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Original file line number Diff line number Diff line change
@@ -0,0 +1,89 @@
//
// DecryptMessageDemoView.swift
// NostrSDKDemo
//
// Created by Fabian Lachman on 31/12/24.
//

import SwiftUI
import NostrSDK

struct DecryptMessageDemoView: View, EventCreating {

@EnvironmentObject var relayPool: RelayPool

@State private var senderPublicKey = ""
@State private var senderPublicKeyIsValid: Bool = false

@State private var receiverPrivateKey = ""
@State private var receiverPrivateKeyIsValid: Bool = false

@State private var encryptedMessage: String = ""
@State private var message: String = ""

var body: some View {
Form {
Text("Decrypt Demo")
Section("Sender") {
KeyInputSectionView(key: $senderPublicKey,
isValid: $senderPublicKeyIsValid,
type: .public)
}
Section("Receiver") {
KeyInputSectionView(key: $receiverPrivateKey,
isValid: $receiverPrivateKeyIsValid,
type: .private)
}
Section("Encrypted Message") {
TextField("Enter encrypted message.", text: $encryptedMessage)
}
Button("Decrypt") {
guard let senderPublicKey = publicKey(),
let receiverPrivateKey = keypair() else {
return
}
do {
message = try decrypt(payload: encryptedMessage, privateKeyA: receiverPrivateKey.privateKey, publicKeyB: senderPublicKey)
} catch {
message = ""
print(error.localizedDescription)
}
}
.disabled(!ready())

if message != "" {
Section("Decrypted Message") {
TextField("Decrypted Message", text: $message)
}
}
}
}

private func keypair() -> Keypair? {
if receiverPrivateKey.contains("nsec") {
return Keypair(nsec: receiverPrivateKey)
} else {
return Keypair(hex: receiverPrivateKey)
}
}

private func publicKey() -> PublicKey? {
if senderPublicKey.contains("npub") {
return PublicKey(npub: senderPublicKey)
} else {
return PublicKey(hex: senderPublicKey)
}
}

private func ready() -> Bool {
!encryptedMessage.isEmpty &&
senderPublicKeyIsValid &&
receiverPrivateKeyIsValid
}
}

struct DecryptMessageDemoView_Previews: PreviewProvider {
static var previews: some View {
DecryptMessageDemoView()
}
}
89 changes: 89 additions & 0 deletions demo/NostrSDKDemo/Demo Views/EncryptMessageDemoView.swift
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Original file line number Diff line number Diff line change
@@ -0,0 +1,89 @@
//
// EncryptMessageDemoView.swift
// NostrSDKDemo
//
// Created by Fabian Lachman on 31/12/24.
//

import SwiftUI
import NostrSDK

struct EncryptMessageDemoView: View, EventCreating {

@EnvironmentObject var relayPool: RelayPool

@State private var recipientPublicKey = ""
@State private var recipientPublicKeyIsValid: Bool = false

@State private var senderPrivateKey = ""
@State private var senderPrivateKeyIsValid: Bool = false

@State private var message: String = ""
@State private var encryptedMessage: String = ""

var body: some View {
Form {
Text("Encrypt Demo")
Section("Recipient") {
KeyInputSectionView(key: $recipientPublicKey,
isValid: $recipientPublicKeyIsValid,
type: .public)
}
Section("Sender") {
KeyInputSectionView(key: $senderPrivateKey,
isValid: $senderPrivateKeyIsValid,
type: .private)
}
Section("Message") {
TextField("Enter a message.", text: $message)
}
Button("Encrypt") {
guard let recipientPublicKey = publicKey(),
let senderKeyPair = keypair() else {
return
}
do {
encryptedMessage = try encrypt(plaintext: message, privateKeyA: senderKeyPair.privateKey, publicKeyB: recipientPublicKey)
} catch {
encryptedMessage = ""
print(error.localizedDescription)
}
}
.disabled(!ready())

if encryptedMessage != "" {
Section("Encrypted Message") {
TextField("Encrypted Message", text: $encryptedMessage)
}
}
}
}

private func keypair() -> Keypair? {
if senderPrivateKey.contains("nsec") {
return Keypair(nsec: senderPrivateKey)
} else {
return Keypair(hex: senderPrivateKey)
}
}

private func publicKey() -> PublicKey? {
if recipientPublicKey.contains("npub") {
return PublicKey(npub: recipientPublicKey)
} else {
return PublicKey(hex: recipientPublicKey)
}
}

private func ready() -> Bool {
!message.isEmpty &&
recipientPublicKeyIsValid &&
senderPrivateKeyIsValid
}
}

struct EncryptDecryptDemoView_Previews: PreviewProvider {
static var previews: some View {
EncryptMessageDemoView()
}
}
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