完善了一些api接口，包括profile，以及chat的接口，同时试着写了一下websocket

lib/common/api.dart

@@ -1,18 +1,26 @@
 import 'dart:convert';
 import 'dart:io';
+import 'package:web_socket_channel/io.dart';
+import 'package:web_socket_channel/web_socket_channel.dart';
+import 'package:web_socket_channel/status.dart' as status;
 
 import 'package:crypto/crypto.dart';
 import 'package:dio/adapter.dart';
 import 'package:dio/dio.dart';
 import 'package:e2ee_chat/common/global.dart';
 
+
 class Api {
   Api();
 
   static Dio dio = Dio(BaseOptions(
-    baseUrl: 'http://10.122.237.112:80/',
+    baseUrl: 'http://10.122.234.72:80/',
   ));
 
+  static String WebSocketUrl='ws://10.122.234.72:80/infrastructure/ws/${Global.profile.username}/';
+
+
+
   static init() async {
     if (!Global.isRelease) {
       (dio.httpClientAdapter as DefaultHttpClientAdapter).onHttpClientCreate = (client) {
@@ -103,6 +111,26 @@ class Api {
     return _result;
   }
 
+  getProfile(String username) async {
+    debug('Api edit begin');
+    bool _result = Global.profile.isLogin;
+    var result=Map();
+    if (_result) {
+      try {
+        var r=await dio.post('/friends/add/', data: FormData.fromMap({"username": username}));
+        var profile=jsonDecode(r.data);
+        result['bio']=profile["bio"].toString();
+        result['phone']=profile["phone"].toString();
+        debug('get profile successfully!');
+      } on DioError catch (e) {
+        debug('Api profile error');
+        throw e;
+      }
+    }
+    debug('Api profile end');
+    return result;
+  }
+
   Future<List<String>?> friendList() async {
     debug('Api friendList begin');
     List<String>? friends;
@@ -178,4 +206,122 @@ class Api {
     debug("delete friend end");
     return _result;
   }
+
+  Future<bool> addPublicKey(String publicKey) async {
+    debug("add public key begin");
+    bool _result = true;
+    try {
+      await dio.post('/infrastructure/add_public_key', data: FormData.fromMap({"public_key": publicKey}));
+    } on DioError catch (e) {
+      debug("add public key failed: ${ () {
+        switch (e.response?.statusCode) {
+          case null: return "unknown error";
+          case 400: return "failed";
+        }
+      } ()}");
+      _result = false;
+    }
+    debug("add public key end");
+    return _result;
+  }
+
+  Future<List<String>?> getPublicKey(String username) async {
+    debug("get public key begin");
+    List<String>? publicKeys;
+    try {
+      var r=await dio.post('/infrastructure/get_public_key/', data: FormData.fromMap({"username": username}));
+      publicKeys = jsonDecode(r.data);
+    } on DioError catch (e) {
+      debug("get public key failed: ${ () {
+        switch (e.response?.statusCode) {
+          case null: return "unknown error";
+          case 400: return "failed";
+        }
+      } ()}");
+    }
+    debug("get public key end");
+    return publicKeys;
+  }
+  Future<bool> sendMessage(String username,String plaintext) async {
+    debug("send message begin");
+    bool _result = true;
+    try {
+      await dio.post('/chat/send/', data: FormData.fromMap({"toUsername": username,"plaintext":plaintext}));
+    } on DioError catch (e) {
+      debug("send message failed: ${ () {
+        switch (e.response?.statusCode) {
+          case null: return "unknown error";
+          case 400: return "failed";
+          case 422: return "the user does not exist";
+          case 423: return "you are not friends";
+        }
+      } ()}");
+      _result = false;
+    }
+    debug("send message end");
+    return _result;
+  }
+
+  Future<List<String>?> getFilterMessages(String username) async {
+    debug("get filter message begin");
+    List<String>? messages;
+    try {
+      var r=await dio.post('/chat/filter_message/', data: FormData.fromMap({"username": username}));
+      messages = jsonDecode(r.data);
+    } on DioError catch (e) {
+      debug("get filter messages failed: ${ () {
+        switch (e.response?.statusCode) {
+          case null: return "unknown error";
+          case 400: return "failed";
+          case 422: return "the user does not exist";
+          case 423: return "you are not friends";
+        }
+      } ()}");
+    }
+    debug("get filter messages end");
+    return messages;
+  }
+
+  Future<List<String>?> getLastMessages(String username) async {
+    debug("get last messages begin");
+    List<String>? messages;
+    try {
+      var r=await dio.post('/chat/request_message/');
+      messages = jsonDecode(r.data);
+    } on DioError catch (e) {
+      debug("add public key failed: ${ () {
+        switch (e.response?.statusCode) {
+          case null: return "unknown error";
+        }
+      } ()}");
+    }
+    debug("get last messages end");
+    return messages;
+  }
+
+  Future<bool> receivedSuccessfully(String message_id) async {
+    debug("received successfully begin");
+    bool _result = true;
+    try {
+      await dio.post('/chat/receive_successfully', data: FormData.fromMap({"message_id": message_id}));
+    } on DioError catch (e) {
+      debug("received successfully failed: ${ () {
+        switch (e.response?.statusCode) {
+          case null: return "unknown error";
+          case 400: return "failed";
+          case 423: return "the message does not exist";
+        }
+      } ()}");
+    }
+    debug("received successfully end");
+    return _result;
+  }
+
+ connectWebSocket(String username) async {
+    debug("delete friend begin");
+    final channel=IOWebSocketChannel.connect(WebSocketUrl);
+    channel.stream.listen((message) {
+      return message;
+    });//如果message是request_message,则请求消息；如果是get_friends_requests,则请求好友
+  }
 }

pubspec.lock

@@ -5,210 +5,210 @@ packages:
     dependency: transitive
     description:
       name: _fe_analyzer_shared
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "22.0.0"
   analyzer:
     dependency: transitive
     description:
       name: analyzer
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.1"
   args:
     dependency: transitive
     description:
       name: args
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
   async:
     dependency: transitive
     description:
       name: async
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.6.1"
   azlistview:
     dependency: "direct main"
     description:
       name: azlistview
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   build:
     dependency: transitive
     description:
       name: build
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.3"
   build_config:
     dependency: transitive
     description:
       name: build_config
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   build_daemon:
     dependency: transitive
     description:
       name: build_daemon
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
   build_resolvers:
     dependency: transitive
     description:
       name: build_resolvers
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.4"
   build_runner:
     dependency: "direct dev"
     description:
       name: build_runner
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.6"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "7.0.1"
   built_collection:
     dependency: transitive
     description:
       name: built_collection
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.1.0"
   built_value:
     dependency: transitive
     description:
       name: built_value
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "8.1.1"
   characters:
     dependency: transitive
     description:
       name: characters
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   checked_yaml:
     dependency: transitive
     description:
       name: checked_yaml
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   cli_util:
     dependency: transitive
     description:
       name: cli_util
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.3.3"
   clock:
     dependency: transitive
     description:
       name: clock
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   code_builder:
     dependency: transitive
     description:
       name: code_builder
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.0"
   collection:
     dependency: transitive
     description:
       name: collection
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
   convert:
     dependency: transitive
     description:
       name: convert
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   crypto:
     dependency: "direct main"
     description:
       name: crypto
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.3"
   dart_style:
     dependency: transitive
     description:
       name: dart_style
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   dio:
     dependency: "direct main"
     description:
       name: dio
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.0"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   ffi:
     dependency: transitive
     description:
       name: ffi
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
   file:
     dependency: transitive
     description:
       name: file
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "6.1.2"
   fixnum:
     dependency: transitive
     description:
       name: fixnum
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   flutter:
@@ -225,14 +225,14 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_secure_storage
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.2.0"
   flutter_slidable:
     dependency: "direct main"
     description:
       name: flutter_slidable
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.0"
   flutter_test:
@@ -249,266 +249,266 @@ packages:
     dependency: "direct main"
     description:
       name: fluttertoast
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "8.0.7"
   frontend_server_client:
     dependency: transitive
     description:
       name: frontend_server_client
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   glob:
     dependency: transitive
     description:
       name: glob
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   graphs:
     dependency: transitive
     description:
       name: graphs
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
   http_multi_server:
     dependency: transitive
     description:
       name: http_multi_server
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.1"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.0"
   intl:
     dependency: "direct main"
     description:
       name: intl
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.17.0"
   io:
     dependency: transitive
     description:
       name: io
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.3"
   js:
     dependency: transitive
     description:
       name: js
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.3"
   json_annotation:
     dependency: transitive
     description:
       name: json_annotation
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.1"
   logging:
     dependency: transitive
     description:
       name: logging
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
   matcher:
     dependency: transitive
     description:
       name: matcher
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.10"
   meta:
     dependency: transitive
     description:
       name: meta
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
   mime:
     dependency: transitive
     description:
       name: mime
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   nested:
     dependency: transitive
     description:
       name: nested
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   objectbox:
     dependency: "direct main"
     description:
       name: objectbox
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
   objectbox_flutter_libs:
     dependency: "direct main"
     description:
       name: objectbox_flutter_libs
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
   objectbox_generator:
     dependency: "direct dev"
     description:
       name: objectbox_generator
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
   package_config:
     dependency: transitive
     description:
       name: package_config
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
   path:
     dependency: transitive
     description:
       name: path
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
   path_provider:
     dependency: transitive
     description:
       name: path_provider
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.2"
   path_provider_linux:
     dependency: transitive
     description:
       name: path_provider_linux
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
   path_provider_macos:
     dependency: transitive
     description:
       name: path_provider_macos
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
   path_provider_platform_interface:
     dependency: transitive
     description:
       name: path_provider_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   path_provider_windows:
     dependency: transitive
     description:
       name: path_provider_windows
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   pedantic:
     dependency: transitive
     description:
       name: pedantic
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.11.1"
   permission_handler:
     dependency: "direct main"
     description:
       name: permission_handler
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "8.1.2"
   permission_handler_platform_interface:
     dependency: transitive
     description:
       name: permission_handler_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.6.0"
   platform:
     dependency: transitive
     description:
       name: platform
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
   plugin_platform_interface:
     dependency: transitive
     description:
       name: plugin_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
   pool:
     dependency: transitive
     description:
       name: pool
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.5.0"
   process:
     dependency: transitive
     description:
       name: process
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "4.2.1"
   provider:
     dependency: "direct main"
     description:
       name: provider
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.0.0"
   pub_semver:
     dependency: transitive
     description:
       name: pub_semver
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
   pubspec_parse:
     dependency: transitive
     description:
       name: pubspec_parse
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   scrollable_positioned_list:
     dependency: transitive
     description:
       name: scrollable_positioned_list
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.10"
   shelf:
     dependency: transitive
     description:
       name: shelf
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   shelf_web_socket:
     dependency: transitive
     description:
       name: shelf_web_socket
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
   sky_engine:
@@ -520,112 +520,112 @@ packages:
     dependency: transitive
     description:
       name: source_gen
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.2"
   source_span:
     dependency: transitive
     description:
       name: source_span
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   stream_transform:
     dependency: transitive
     description:
       name: stream_transform
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.3.0"
   timing:
     dependency: transitive
     description:
       name: timing
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   watcher:
     dependency: transitive
     description:
       name: watcher
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.0"
   web_socket_channel:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: web_socket_channel
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   win32:
     dependency: transitive
     description:
       name: win32
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.2.5"
   xdg_directories:
     dependency: transitive
     description:
       name: xdg_directories
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.2.0"
   yaml:
     dependency: transitive
     description:
       name: yaml
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.0"
 sdks:

pubspec.yaml

@@ -38,6 +38,7 @@ dependencies:
   permission_handler: ^8.1.2
   flutter_slidable: ^0.6.0
   azlistview: ^1.1.1
+  web_socket_channel: ^2.1.0
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.