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store() on relay object and replace third parameter with conn object …
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "sync" | ||
|
|
||
| "github.com/fiatjaf/khatru" | ||
| "github.com/fiatjaf/quickjs-go" | ||
| "github.com/puzpuzpuz/xsync/v2" | ||
| ) | ||
|
|
||
| var sessionStorage = xsync.NewTypedMapOf[*khatru.WebSocket, store](pointerHasher) | ||
|
|
||
| type store struct { | ||
| data map[string]string | ||
| mutex sync.Mutex | ||
| } | ||
|
|
||
| var globalStore = store{data: make(map[string]string)} | ||
|
|
||
| func onDisconnect(ctx context.Context) { | ||
| sessionStorage.Delete(khatru.GetConnection(ctx)) | ||
| } | ||
|
|
||
| func makeRelayObject(ctx context.Context, qjs *quickjs.Context) quickjs.Value { | ||
| relayObject := qjs.Object() | ||
|
|
||
| queryFunc := qjs.Function(func(qjs *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { | ||
| filterjs := args[0] // this is expected to be a nostr filter object | ||
| filter := filterFromJs(qjs, filterjs) | ||
| events, err := wrapper.QuerySync(ctx, filter) | ||
| if err != nil { | ||
| qjs.ThrowError(err) | ||
| } | ||
| results := qjs.Array() | ||
| for _, event := range events { | ||
| results.Push(eventToJs(qjs, event)) | ||
| } | ||
| return results.ToValue() | ||
| }) | ||
| relayObject.Set("query", queryFunc) | ||
|
|
||
| setFunc := qjs.Function(func(qjs *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { | ||
| k := args[0].String() | ||
| v := args[1].JSONStringify() | ||
| globalStore.mutex.Lock() | ||
| globalStore.data[k] = v | ||
| globalStore.mutex.Unlock() | ||
| return qjs.Undefined() | ||
| }) | ||
| getFunc := qjs.Function(func(qjs *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { | ||
| k := args[0].String() | ||
| globalStore.mutex.Lock() | ||
| v := qjs.ParseJSON(globalStore.data[k]) | ||
| globalStore.mutex.Unlock() | ||
| return v | ||
| }) | ||
| delFunc := qjs.Function(func(qjs *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { | ||
| k := args[0].String() | ||
| globalStore.mutex.Lock() | ||
| delete(globalStore.data, k) | ||
| globalStore.mutex.Unlock() | ||
| return qjs.Undefined() | ||
| }) | ||
|
|
||
| store := qjs.Object() | ||
| store.Set("set", setFunc) | ||
| store.Set("get", getFunc) | ||
| store.Set("del", delFunc) | ||
| relayObject.Set("store", store) | ||
|
|
||
| return relayObject | ||
| } | ||
|
|
||
| func makeConnectionObject(ctx context.Context, qjs *quickjs.Context) quickjs.Value { | ||
| connObject := qjs.Object() | ||
| connObject.Set("ip", qjs.String(khatru.GetIP(ctx))) | ||
| if pubkey := khatru.GetAuthed(ctx); pubkey != "" { | ||
| connObject.Set("pubkey", qjs.String(pubkey)) | ||
| } | ||
| connObject.Set("getOpenSubscriptions", qjs.Function(func(qjs *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { | ||
| subs := qjs.Array() | ||
| for _, filter := range khatru.GetOpenSubscriptions(ctx) { | ||
| subs.Push(filterToJs(qjs, filter)) | ||
| } | ||
| return subs.ToValue() | ||
| })) | ||
|
|
||
| setFunc := qjs.Function(func(qjs *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { | ||
| k := args[0].String() | ||
| v := args[1].JSONStringify() | ||
| s, _ := sessionStorage.LoadOrCompute(khatru.GetConnection(ctx), func() store { | ||
| return store{data: make(map[string]string)} | ||
| }) | ||
| s.mutex.Lock() | ||
| s.data[k] = v | ||
| s.mutex.Unlock() | ||
| return qjs.Undefined() | ||
| }) | ||
| getFunc := qjs.Function(func(qjs *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { | ||
| k := args[0].String() | ||
| s, ok := sessionStorage.Load(khatru.GetConnection(ctx)) | ||
| if !ok { | ||
| return qjs.Undefined() | ||
| } | ||
| s.mutex.Lock() | ||
| v := qjs.ParseJSON(s.data[k]) | ||
| s.mutex.Unlock() | ||
| return v | ||
| }) | ||
| delFunc := qjs.Function(func(qjs *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { | ||
| k := args[0].String() | ||
| s, ok := sessionStorage.Load(khatru.GetConnection(ctx)) | ||
| if ok { | ||
| s.mutex.Lock() | ||
| delete(s.data, k) | ||
| s.mutex.Unlock() | ||
| } | ||
| return qjs.Undefined() | ||
| }) | ||
|
|
||
| store := qjs.Object() | ||
| store.Set("set", setFunc) | ||
| store.Set("get", getFunc) | ||
| store.Set("del", delFunc) | ||
| connObject.Set("store", store) | ||
|
|
||
| return connObject | ||
| } |
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