|
| 1 | +package plugin |
| 2 | + |
| 3 | +import ( |
| 4 | + "bytes" |
| 5 | + "context" |
| 6 | + "crypto/ecdsa" |
| 7 | + "crypto/sha256" |
| 8 | + "encoding/binary" |
| 9 | + "encoding/gob" |
| 10 | + "encoding/hex" |
| 11 | + "fmt" |
| 12 | + "github.com/charmbracelet/log" |
| 13 | + "github.com/ethereum/go-ethereum/crypto" |
| 14 | + "github.com/knqyf263/go-plugin/types/known/emptypb" |
| 15 | + _ "github.com/opq-osc/Yui/config" |
| 16 | + "github.com/opq-osc/Yui/plugin/meta" |
| 17 | + "github.com/opq-osc/Yui/proto" |
| 18 | + "github.com/opq-osc/Yui/proto/library/systemInfo" |
| 19 | + systemInfoExport "github.com/opq-osc/Yui/proto/library/systemInfo/export" |
| 20 | + cron2 "github.com/robfig/cron/v3" |
| 21 | + "github.com/spf13/viper" |
| 22 | + "github.com/tetratelabs/wazero" |
| 23 | + "github.com/tetratelabs/wazero/imports/wasi_snapshot_preview1" |
| 24 | + "io" |
| 25 | + "math/big" |
| 26 | + "os" |
| 27 | + "path/filepath" |
| 28 | + "strings" |
| 29 | +) |
| 30 | + |
| 31 | +// 允许自动加载插件 |
| 32 | + |
| 33 | +type AutoLoadPluginCfg struct { |
| 34 | + PluginName string `mapstructure:"pluginname"` |
| 35 | + PluginSha256 string `mapstructure:"pluginsha256"` |
| 36 | +} |
| 37 | + |
| 38 | +func GetAutoLoadPlugins() []AutoLoadPluginCfg { |
| 39 | + var autoLoadCfg []AutoLoadPluginCfg |
| 40 | + viper.UnmarshalKey("plugin.autoload", &autoLoadCfg) |
| 41 | + return autoLoadCfg |
| 42 | +} |
| 43 | +func RemoveAutoLoadPlugin(name string) error { |
| 44 | + var plugins []AutoLoadPluginCfg |
| 45 | + viper.UnmarshalKey("plugin.autoload", &plugins) |
| 46 | + for i, v := range plugins { |
| 47 | + if v.PluginName == name { |
| 48 | + plugins = append(plugins[:i], plugins[i+1:]...) |
| 49 | + } |
| 50 | + } |
| 51 | + viper.Set("plugin.autoload", plugins) |
| 52 | + return viper.WriteConfig() |
| 53 | +} |
| 54 | +func AddAutoLoadPlugin(name string) error { |
| 55 | + var plugins []AutoLoadPluginCfg |
| 56 | + viper.UnmarshalKey("plugin.autoload", &plugins) |
| 57 | + for _, v := range plugins { |
| 58 | + if v.PluginName == name { |
| 59 | + return fmt.Errorf("插件已经添加到自动加载列表") |
| 60 | + } |
| 61 | + } |
| 62 | + data, err := os.ReadFile(filepath.Join("plugins", name+".opq")) |
| 63 | + if err != nil { |
| 64 | + return err |
| 65 | + } |
| 66 | + sha := sha256.New() |
| 67 | + sha.Write(data) |
| 68 | + hash := hex.EncodeToString(sha.Sum(nil)) |
| 69 | + plugins = append(plugins, AutoLoadPluginCfg{ |
| 70 | + PluginName: name, |
| 71 | + PluginSha256: hash, |
| 72 | + }) |
| 73 | + viper.Set("plugin.autoload", plugins) |
| 74 | + return viper.WriteConfig() |
| 75 | +} |
| 76 | + |
| 77 | +// LoadPluginWithSha256 自动加载时使用 |
| 78 | +func (m *Manager) LoadPluginWithSha256(ctx context.Context, pluginInfo AutoLoadPluginCfg) error { |
| 79 | + f, err := os.ReadFile(filepath.Join("plugins", pluginInfo.PluginName+".opq")) |
| 80 | + if err != nil { |
| 81 | + return err |
| 82 | + } |
| 83 | + sha := sha256.New() |
| 84 | + sha.Write(f) |
| 85 | + if !strings.EqualFold(hex.EncodeToString(sha.Sum(nil)), pluginInfo.PluginSha256) { |
| 86 | + return fmt.Errorf("插件疑似被修改，无法自动载入") |
| 87 | + } |
| 88 | + reader := bytes.NewReader(f) |
| 89 | + sign := [3]byte{} |
| 90 | + _, err = reader.Read(sign[:]) |
| 91 | + if err != nil { |
| 92 | + return err |
| 93 | + } |
| 94 | + if !bytes.Equal(sign[:], []byte("OPQ")) { |
| 95 | + return fmt.Errorf("非OPQ插件") |
| 96 | + } |
| 97 | + var pluginApiVersion int32 = 0 |
| 98 | + err = binary.Read(reader, binary.LittleEndian, &pluginApiVersion) |
| 99 | + if err != nil { |
| 100 | + return err |
| 101 | + } |
| 102 | + if pluginApiVersion < meta.PluginApiVersion { |
| 103 | + return fmt.Errorf("插件API版本过低无法载入") |
| 104 | + } |
| 105 | + var length int32 = 0 |
| 106 | + // 获取签名信息 |
| 107 | + r := big.NewInt(0) |
| 108 | + s := big.NewInt(0) |
| 109 | + var signFlag int32 = 0 |
| 110 | + err = binary.Read(reader, binary.LittleEndian, &signFlag) |
| 111 | + if err != nil { |
| 112 | + return err |
| 113 | + } |
| 114 | + if int(signFlag) == 1 { |
| 115 | + err = binary.Read(reader, binary.LittleEndian, &length) |
| 116 | + if err != nil { |
| 117 | + return err |
| 118 | + } |
| 119 | + rByte := make([]byte, length) |
| 120 | + _, err = reader.Read(rByte) |
| 121 | + |
| 122 | + if err != nil { |
| 123 | + return err |
| 124 | + } |
| 125 | + err = r.UnmarshalText(rByte) |
| 126 | + if err != nil { |
| 127 | + return err |
| 128 | + } |
| 129 | + |
| 130 | + err = binary.Read(reader, binary.LittleEndian, &length) |
| 131 | + if err != nil { |
| 132 | + return err |
| 133 | + } |
| 134 | + sByte := make([]byte, length) |
| 135 | + _, err = reader.Read(sByte) |
| 136 | + if err != nil { |
| 137 | + return err |
| 138 | + } |
| 139 | + err = s.UnmarshalText(sByte) |
| 140 | + if err != nil { |
| 141 | + return err |
| 142 | + } |
| 143 | + } |
| 144 | + |
| 145 | + // 读取头信息 |
| 146 | + err = binary.Read(reader, binary.LittleEndian, &length) |
| 147 | + if err != nil { |
| 148 | + return err |
| 149 | + } |
| 150 | + header := make([]byte, length) |
| 151 | + _, err = reader.Read(header) |
| 152 | + if err != nil { |
| 153 | + return err |
| 154 | + } |
| 155 | + sha = sha256.New() |
| 156 | + sha.Write(header) |
| 157 | + headerSha256 := sha.Sum(nil) |
| 158 | + dec := gob.NewDecoder(bytes.NewBuffer(header)) |
| 159 | + pluginMeta := meta.PluginMeta{} |
| 160 | + if err = dec.Decode(&pluginMeta); err != nil { |
| 161 | + return err |
| 162 | + } |
| 163 | + if _, ok := m.plugins.Load(pluginMeta.PluginName); ok { |
| 164 | + return fmt.Errorf("插件名已存在，无法重复加载！") |
| 165 | + } |
| 166 | + // 依赖 |
| 167 | + for _, v := range pluginMeta.Dependencies { |
| 168 | + if _, ok := m.plugins.Load(v); !ok { |
| 169 | + return fmt.Errorf("缺少依赖项%s,插件无法载入", v) |
| 170 | + } |
| 171 | + } |
| 172 | + |
| 173 | + pluginMeta.Sign = false |
| 174 | + if int(signFlag) == 1 { |
| 175 | + p, err := hex.DecodeString(publicKey) |
| 176 | + if err != nil { |
| 177 | + log.Error(err) |
| 178 | + } |
| 179 | + pubKey, err := crypto.UnmarshalPubkey(p) |
| 180 | + if err != nil { |
| 181 | + log.Fatal(err) |
| 182 | + } |
| 183 | + // 公钥验证签名 |
| 184 | + pluginMeta.Sign = ecdsa.Verify(pubKey, headerSha256, r, s) |
| 185 | + } |
| 186 | + log.Info("载入插件中", "pluginName", pluginMeta.PluginName, "sha256", pluginMeta.Sha256) |
| 187 | + data, err := io.ReadAll(reader) |
| 188 | + if err != nil { |
| 189 | + return err |
| 190 | + } |
| 191 | + sha = sha256.New() |
| 192 | + sha.Write(data) |
| 193 | + sha256Result := hex.EncodeToString(sha.Sum(nil)) |
| 194 | + log.Info("计算sha256", "result", sha256Result) |
| 195 | + if !strings.EqualFold(sha256Result, pluginMeta.Sha256) { |
| 196 | + return fmt.Errorf("插件疑似被篡改，禁止载入") |
| 197 | + } |
| 198 | + dir := filepath.Join("plugins", pluginMeta.PluginName) |
| 199 | + err = os.MkdirAll(dir, 0777) |
| 200 | + if err != nil { |
| 201 | + return err |
| 202 | + } |
| 203 | + p := Plugin{Meta: pluginMeta, cronJobs: map[string]cron2.EntryID{}} |
| 204 | + mc := wazero.NewModuleConfig(). |
| 205 | + WithStdout(io.Discard). // 丢弃 |
| 206 | + WithStderr(io.Discard). // 丢弃 |
| 207 | + WithFSConfig(wazero.NewFSConfig().WithDirMount(dir, "/")) |
| 208 | + env := viper.GetStringMapString("plugin.env") |
| 209 | + for k, v := range env { |
| 210 | + mc = mc.WithEnv(k, v) |
| 211 | + } |
| 212 | + rc := wazero.NewRuntimeConfig() |
| 213 | + |
| 214 | + pluginVm, err := proto.NewEventPlugin(ctx, proto.WazeroModuleConfig(mc), proto.WazeroRuntime(func(ctx context.Context) (wazero.Runtime, error) { |
| 215 | + r := wazero.NewRuntimeWithConfig(ctx, rc) |
| 216 | + if _, err := wasi_snapshot_preview1.Instantiate(ctx, r); err != nil { |
| 217 | + return nil, err |
| 218 | + } |
| 219 | + if err = systemInfoExport.Instantiate(ctx, r, &systemInfo.SystemInfo{PluginInfo: pluginMeta}); err != nil { |
| 220 | + return nil, err |
| 221 | + } |
| 222 | + return r, nil |
| 223 | + })) |
| 224 | + |
| 225 | + if err != nil { |
| 226 | + return err |
| 227 | + } |
| 228 | + |
| 229 | + p.event, err = pluginVm.LoadWithBytes(ctx, data, &p) |
| 230 | + if err != nil { |
| 231 | + return err |
| 232 | + } |
| 233 | + reply, err := p.event.Init(ctx, &emptypb.Empty{}) |
| 234 | + if err != nil { |
| 235 | + p.event.Close(ctx) |
| 236 | + return err |
| 237 | + } |
| 238 | + if !reply.Ok { |
| 239 | + p.event.Close(ctx) |
| 240 | + return fmt.Errorf(reply.Message) |
| 241 | + } |
| 242 | + m.plugins.Store(pluginMeta.PluginName, &p) |
| 243 | + return nil |
| 244 | +} |
| 245 | + |
| 246 | +func init() { |
| 247 | + // auto load plugin |
| 248 | + plugins := GetAutoLoadPlugins() |
| 249 | + for _, v := range plugins { |
| 250 | + err := M.LoadPluginWithSha256(context.Background(), v) |
| 251 | + if err != nil { |
| 252 | + log.Error("自动加载时遇到错误", "err", err) |
| 253 | + } |
| 254 | + } |
| 255 | +} |
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