fix more concurrency

free session if connection failed
read only once in testexec
unique names for key filenmaes
free pubkeys even if it fails to auth
fix bitmask reading of auth methods
remove handler.state from the terminal, put it inline with other status indicators

ShhShell/SSH/SSHHandler.swift

@@ -13,7 +13,6 @@ import SwiftUI
 class SSHHandler: @unchecked Sendable, ObservableObject {
 	private var session: ssh_session?
 	private var channel: ssh_channel?
-	private let sshQueue = DispatchQueue(label: "SSH Queue")
 	
 	@Published var title: String = ""
 	@Published var state: SSHState = .idle
@@ -49,12 +48,8 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 	
 	func go() {
 		guard !connected else {
-			Task { @MainActor in
 			withAnimation { state = .idle }
-			}
-			Task {
 			disconnect()
-			}
 			return
 		}
 		
@@ -113,6 +108,7 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 		
 		let status = ssh_connect(session)
 		if status != SSH_OK {
+			ssh_free(session)
 			logger.critical("connection not ok: \(status)")
 			logSshGetError()
 			withAnimation { state = .idle }
@@ -123,10 +119,8 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 	}
 	
 	func disconnect() {
-		DispatchQueue.main.async {
 		withAnimation { self.state = .idle }
 		withAnimation { self.testSuceeded = nil }
-		}
 		
 		//send eof if open
 		if ssh_channel_is_open(channel) == 1 {
@@ -161,12 +155,10 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 	
 	func testExec() {
 		defer {
-			Task { @MainActor in
 			let result = self.testSuceeded
 			disconnect()
 			withAnimation { testSuceeded = result }
 		}
-		}
 		
 		if !checkAuth(state) {
 			go()
@@ -211,15 +203,12 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 			return
 		}
 		
-		nbytes = ssh_channel_read(
+		nbytes = ssh_channel_read_nonblocking(
 			testChannel,
 			&buffer,
 			UInt32(buffer.count),
 			0
 		)
-		while nbytes > 0 {
-			nbytes = ssh_channel_read_nonblocking(testChannel, &buffer, UInt32(buffer.count), 0)
-		}
 		
 		if nbytes < 0 {
 			ssh_channel_close(testChannel)
@@ -246,8 +235,8 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 		
 		let fileManager = FileManager.default
 		let tempDir = fileManager.temporaryDirectory
-		let tempPubkey = tempDir.appendingPathComponent("key.pub")
-		let tempKey = tempDir.appendingPathComponent("key")
+		let tempPubkey = tempDir.appendingPathComponent("\(UUID())key.pub")
+		let tempKey = tempDir.appendingPathComponent("\(UUID())key")
 		
 		fileManager.createFile(atPath: tempPubkey.path(), contents: nil)
 		fileManager.createFile(atPath: tempKey.path(), contents: nil)
@@ -272,6 +261,7 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 		if ssh_pki_import_pubkey_file(tempPubkey.path(), &pubkey) != 0 {
 			throw .importPrivkeyError
 		}
+		defer { ssh_key_free(pubkey) }
 		
 		if ssh_userauth_try_publickey(session, nil, pubkey) != 0 {
 			throw .pubkeyRejected
@@ -281,6 +271,7 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 		if ssh_pki_import_privkey_file(tempKey.path(), pass, nil, nil, &privkey) != 0 {
 			throw .importPrivkeyError
 		}
+		defer { ssh_key_free(privkey) }
 		
 		if (ssh_userauth_publickey(session, nil, privkey) != 0) {
 			throw .privkeyRejected
@@ -289,8 +280,6 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 		//if u got this far, youre authed!
 		withAnimation { state = .authorized }
 		
-		ssh_key_free(pubkey)
-		ssh_key_free(privkey)
 		do {
 			try FileManager.default.removeItem(at: tempPubkey)
 			try FileManager.default.removeItem(at: tempKey)
@@ -341,7 +330,7 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 		let allAuths = zip(allAuthDescriptions, allAuthRaws)
 		
 		for authMethod in allAuths {
-			if authMethod.1 == recievedMethod {
+			if (recievedMethod & Int32(authMethod.1)) != 0 {
 				print(authMethod.0)
 			}
 		}
@@ -381,7 +370,7 @@ class SSHHandler: @unchecked Sendable, ObservableObject {
 	func readFromChannel() -> String? {
 		guard connected else { return nil }
 		guard ssh_channel_is_open(channel) == 1 && ssh_channel_is_eof(channel) == 0 else {
-			Task { disconnect() }
+			disconnect()
 			return nil
 		}
 		

ShhShell/Views/ConnectionView.swift

@@ -24,7 +24,6 @@ struct ConnectionView: View {
 	var body: some View {
 		NavigationStack {
 			List {
-				Text("\(handler.state)")
 				Section {
 					HStack {
 						Text(handler.connected ? "connected" : "not connected")
@@ -32,6 +31,7 @@ struct ConnectionView: View {
 						
 						Text(checkAuth(handler.state) ? "authorized" : "unauthorized")
 							.modifier(foregroundColorStyle(checkAuth(handler.state) ? .green : .red))
+						Text("\(handler.state)")
 					}
 					TextField("address", text: $handler.host.address)
 						.textFieldStyle(.roundedBorder)
@@ -133,7 +133,6 @@ struct ConnectionView: View {
 			}
 		}
 		.fullScreenCover(isPresented: $showTerminal) {
-			Text("\(handler.state)")
 			ShellView(handler: handler)
 		}
 		.onDisappear {