basic file exploration and bugfixes

lib/add_server_modal.dart

@@ -39,7 +39,10 @@ class _AddServerModalState extends State<AddServerModal> {
         _connection.isEncryptionEnabled = widget.initialState?.isEncryptionEnabled;
         _connection.isDefault = widget.initialState?.isDefault;
         _privateKeyFileController.text = widget.initialState?.privateKey ?? '';
+        _connection.privateKey = widget.initialState?.privateKey;
         _passwordController.text = widget.initialState?.password ?? '';
+        _fileSelected = true;
+        _isPrivateKeyValid = true;
       }
     }
 
@@ -135,7 +138,6 @@ class _AddServerModalState extends State<AddServerModal> {
                           }
                         }
                         catch (e) {
-                          print('bonga');
                           setState(() {
                             _fileSelected = true;
                             _showPrivateKey = true;
@@ -168,7 +170,7 @@ class _AddServerModalState extends State<AddServerModal> {
                       if (_privateKeyFileController.text.isEmpty && _passwordController.text.isEmpty) {
                         return 'At least provide one of these';
                       }
-                      if (!_isPrivateKeyValid) {
+                      if (_privateKeyFileController.text.isNotEmpty && !_isPrivateKeyValid) {
                         return 'Invalid private key file';
                       }
                       return null;

lib/sftp_connection_list.dart

@@ -1,9 +1,11 @@
 import 'dart:convert';
 
+import 'package:dartssh2/dartssh2.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:fluxcloud/add_server_modal.dart';
 import 'package:fluxcloud/connection.dart';
+import 'package:fluxcloud/sftp_explorer.dart';
 
 class SftpConnectionList extends StatefulWidget {
   const SftpConnectionList({
@@ -75,8 +77,21 @@ class _SftpConnectionListState extends State<SftpConnectionList> {
                     color: Theme.of(context).colorScheme.onSecondary,
                     borderRadius: BorderRadius.circular(10),
                     child: InkWell(
-                      onTap: () {
+                      onTap: () async {
-                        // TODO: connect to connection here
+                        final conn = _connections[index];
+                        final client = SSHClient(
+                          await SSHSocket.connect(conn.host!, conn.port!),
+                          username: conn.username!,
+                          onPasswordRequest: () => conn.password,
+                          identities: [
+                            if (conn.privateKey != null)
+                              ...SSHKeyPair.fromPem(conn.privateKey!)
+                          ]
+                        );
+                        final sftpClient = await client.sftp();
+                        if (context.mounted) {
+                          Navigator.push(context, MaterialPageRoute(builder: (context) => SftpExplorer(sftpClient: sftpClient,)));
+                        }
                       },
                       borderRadius: BorderRadius.circular(10),
                       child: Padding(

lib/sftp_explorer.dart

@@ -0,0 +1,62 @@
+import 'package:dartssh2/dartssh2.dart';
+import 'package:flutter/material.dart';
+
+class SftpExplorer extends StatefulWidget {
+  const SftpExplorer({super.key, required this.sftpClient, this.path = '/'});
+
+  final SftpClient sftpClient;
+  final String path;
+
+  @override
+  State<SftpExplorer> createState() => _SftpExplorerState();
+}
+
+class _SftpExplorerState extends State<SftpExplorer> {
+
+  bool _isLoading = true;
+  late List<SftpName> _dirContents;
+
+
+  @override
+  void initState() {
+    super.initState();
+    _listDir();
+  }
+
+  void _listDir() async {
+    _dirContents =  await widget.sftpClient.listdir(widget.path);
+    setState(() {
+      _isLoading = false;
+    });
+  }
+
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('Explorer'),
+      ),
+      body: _isLoading ? Center(child: CircularProgressIndicator()) : ListView.builder(
+        itemCount: _dirContents.length,
+        itemBuilder: (context, index) {
+          final dirEntry = _dirContents[index];
+          return ListTile(
+            leading: Icon(dirEntry.attr.isDirectory ? Icons.folder : Icons.description),
+            title: Text(dirEntry.filename),
+            onTap: () {
+              if (dirEntry.attr.isDirectory) {
+                Navigator.push(context, MaterialPageRoute(
+                  builder: (context) => SftpExplorer(
+                    sftpClient: widget.sftpClient,
+                    path: '${widget.path}${dirEntry.filename}/',
+                  )
+                ));
+              }
+            },
+          );
+        }, 
+      )
+    );
+  }
+}

pubspec.lock

@@ -1,6 +1,14 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  asn1lib:
+    dependency: transitive
+    description:
+      name: asn1lib
+      sha256: "9a8f69025044eb466b9b60ef3bc3ac99b4dc6c158ae9c56d25eeccf5bc56d024"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.6.5"
   async:
     dependency: transitive
     description:
@@ -41,6 +49,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.19.1"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      sha256: b30acd5944035672bc15c6b7a8b47d773e41e2f17de064350988c5d02adb1c68
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.2"
   cross_file:
     dependency: transitive
     description:
@@ -49,6 +65,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.3.4+2"
+  dartssh2:
+    dependency: "direct main"
+    description:
+      name: dartssh2
+      sha256: bb242396c1d90f05c261b5eb8338cc67167e803c0948b0207029339cc568a66c
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.13.0"
   fake_async:
     dependency: transitive
     description:
@@ -336,6 +360,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.0"
+  pinenacl:
+    dependency: transitive
+    description:
+      name: pinenacl
+      sha256: "57e907beaacbc3c024a098910b6240758e899674de07d6949a67b52fd984cbdf"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.0"
   platform:
     dependency: transitive
     description:
@@ -352,6 +384,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.8"
+  pointycastle:
+    dependency: transitive
+    description:
+      name: pointycastle
+      sha256: "4be0097fcf3fd3e8449e53730c631200ebc7b88016acecab2b0da2f0149222fe"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.9.1"
   sky_engine:
     dependency: transitive
     description: flutter

pubspec.yaml

@@ -11,6 +11,7 @@ dependencies:
     sdk: flutter
   file_selector: ^1.0.3
   flutter_secure_storage: ^9.2.4
+  dartssh2: ^2.13.0
 
 dev_dependencies:
   flutter_test: