GODT-1779: Remove go-imap

internal/focus/client.go

@@ -0,0 +1,32 @@
+package focus
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"time"
+
+	"github.com/ProtonMail/proton-bridge/v2/internal/focus/proto"
+	"google.golang.org/grpc"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+func TryRaise() bool {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+
+	cc, err := grpc.DialContext(ctx, net.JoinHostPort(Host, fmt.Sprint(Port)), grpc.WithInsecure())
+	if err != nil {
+		return false
+	}
+
+	if _, err := proto.NewFocusClient(cc).Raise(ctx, &emptypb.Empty{}); err != nil {
+		return false
+	}
+
+	if err := cc.Close(); err != nil {
+		return false
+	}
+
+	return true
+}

internal/focus/focus_test.go

@@ -0,0 +1,25 @@
+package focus
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestFocusRaise(t *testing.T) {
+	// Start the focus service.
+	service, err := NewService()
+	require.NoError(t, err)
+
+	// Try to dial it, it should succeed.
+	require.True(t, TryRaise())
+
+	// The service should report a raise call.
+	<-service.GetRaiseCh()
+
+	// Stop the service.
+	service.Close()
+
+	// Try to dial it, it should fail.
+	require.False(t, TryRaise())
+}

internal/focus/proto/focus.go

@@ -0,0 +1,3 @@
+package proto
+
+//go:generate protoc --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative focus.proto

internal/focus/proto/focus.pb.go

@@ -0,0 +1,93 @@
+// Copyright (c) 2022 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// ProtonMail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.1
+// 	protoc        v3.21.6
+// source: focus.proto
+
+package proto
+
+import (
+	reflect "reflect"
+
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	emptypb "google.golang.org/protobuf/types/known/emptypb"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+var File_focus_proto protoreflect.FileDescriptor
+
+var file_focus_proto_rawDesc = []byte{
+	0x0a, 0x0b, 0x66, 0x6f, 0x63, 0x75, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x05, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x1b, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x65, 0x6d, 0x70, 0x74, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x32, 0x40, 0x0a, 0x05, 0x46, 0x6f, 0x63, 0x75, 0x73, 0x12, 0x37, 0x0a, 0x05, 0x52, 0x61,
+	0x69, 0x73, 0x65, 0x12, 0x16, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x1a, 0x16, 0x2e, 0x67, 0x6f,
+	0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x45, 0x6d,
+	0x70, 0x74, 0x79, 0x42, 0x3d, 0x5a, 0x3b, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f,
+	0x6d, 0x2f, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x6e, 0x4d, 0x61, 0x69, 0x6c, 0x2f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x6e, 0x2d, 0x62, 0x72, 0x69, 0x64, 0x67, 0x65, 0x2f, 0x76, 0x32, 0x2f, 0x69, 0x6e,
+	0x74, 0x65, 0x72, 0x6e, 0x61, 0x6c, 0x2f, 0x66, 0x6f, 0x63, 0x75, 0x73, 0x2f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var file_focus_proto_goTypes = []interface{}{
+	(*emptypb.Empty)(nil), // 0: google.protobuf.Empty
+}
+var file_focus_proto_depIdxs = []int32{
+	0, // 0: proto.Focus.Raise:input_type -> google.protobuf.Empty
+	0, // 1: proto.Focus.Raise:output_type -> google.protobuf.Empty
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_focus_proto_init() }
+func file_focus_proto_init() {
+	if File_focus_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_focus_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   0,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_focus_proto_goTypes,
+		DependencyIndexes: file_focus_proto_depIdxs,
+	}.Build()
+	File_focus_proto = out.File
+	file_focus_proto_rawDesc = nil
+	file_focus_proto_goTypes = nil
+	file_focus_proto_depIdxs = nil
+}

internal/focus/proto/focus.proto

@@ -0,0 +1,31 @@
+// Copyright (c) 2022 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// ProtonMail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+option go_package = "github.com/ProtonMail/proton-bridge/v2/internal/focus/proto";
+
+package proto; 
+
+//**********************************************************************************************************************
+//  Service Declaration
+//**********************************************************************************************************************≠––
+service Focus {
+  rpc Raise(google.protobuf.Empty) returns (google.protobuf.Empty);
+}

internal/focus/proto/focus_grpc.pb.go

@@ -0,0 +1,107 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v3.21.6
+// source: focus.proto
+
+package proto
+
+import (
+	context "context"
+
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+	emptypb "google.golang.org/protobuf/types/known/emptypb"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// FocusClient is the client API for Focus service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type FocusClient interface {
+	Raise(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*emptypb.Empty, error)
+}
+
+type focusClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewFocusClient(cc grpc.ClientConnInterface) FocusClient {
+	return &focusClient{cc}
+}
+
+func (c *focusClient) Raise(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*emptypb.Empty, error) {
+	out := new(emptypb.Empty)
+	err := c.cc.Invoke(ctx, "/proto.Focus/Raise", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// FocusServer is the server API for Focus service.
+// All implementations must embed UnimplementedFocusServer
+// for forward compatibility
+type FocusServer interface {
+	Raise(context.Context, *emptypb.Empty) (*emptypb.Empty, error)
+	mustEmbedUnimplementedFocusServer()
+}
+
+// UnimplementedFocusServer must be embedded to have forward compatible implementations.
+type UnimplementedFocusServer struct {
+}
+
+func (UnimplementedFocusServer) Raise(context.Context, *emptypb.Empty) (*emptypb.Empty, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Raise not implemented")
+}
+func (UnimplementedFocusServer) mustEmbedUnimplementedFocusServer() {}
+
+// UnsafeFocusServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to FocusServer will
+// result in compilation errors.
+type UnsafeFocusServer interface {
+	mustEmbedUnimplementedFocusServer()
+}
+
+func RegisterFocusServer(s grpc.ServiceRegistrar, srv FocusServer) {
+	s.RegisterService(&Focus_ServiceDesc, srv)
+}
+
+func _Focus_Raise_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(emptypb.Empty)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(FocusServer).Raise(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/proto.Focus/Raise",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(FocusServer).Raise(ctx, req.(*emptypb.Empty))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// Focus_ServiceDesc is the grpc.ServiceDesc for Focus service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var Focus_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "proto.Focus",
+	HandlerType: (*FocusServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Raise",
+			Handler:    _Focus_Raise_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "focus.proto",
+}

internal/focus/service.go

@@ -0,0 +1,60 @@
+package focus
+
+import (
+	"context"
+	"fmt"
+	"net"
+
+	"github.com/ProtonMail/proton-bridge/v2/internal/focus/proto"
+	"google.golang.org/grpc"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+const (
+	Host = "127.0.0.1"
+	Port = 1042
+)
+
+type FocusService struct {
+	proto.UnimplementedFocusServer
+
+	server   *grpc.Server
+	listener net.Listener
+	raiseCh  chan struct{}
+}
+
+func NewService() (*FocusService, error) {
+	listener, err := net.Listen("tcp", net.JoinHostPort(Host, fmt.Sprint(Port)))
+	if err != nil {
+		return nil, fmt.Errorf("failed to listen: %w", err)
+	}
+
+	service := &FocusService{
+		server:   grpc.NewServer(),
+		listener: listener,
+		raiseCh:  make(chan struct{}, 1),
+	}
+
+	proto.RegisterFocusServer(service.server, service)
+
+	go func() {
+		if err := service.server.Serve(listener); err != nil {
+			fmt.Printf("failed to serve: %v", err)
+		}
+	}()
+
+	return service, nil
+}
+
+func (service *FocusService) Raise(context.Context, *emptypb.Empty) (*emptypb.Empty, error) {
+	service.raiseCh <- struct{}{}
+	return &emptypb.Empty{}, nil
+}
+
+func (service *FocusService) GetRaiseCh() <-chan struct{} {
+	return service.raiseCh
+}
+
+func (service *FocusService) Close() {
+	service.server.Stop()
+}