@metamask/snaps-rpc-methods
Version:
MetaMask Snaps JSON-RPC method implementations
1 lines • 5.12 kB
Source Map (JSON)
{"version":3,"file":"sendWebSocketMessage.mjs","sourceRoot":"","sources":["../../src/permitted/sendWebSocketMessage.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,cAAc,EAAE,SAAS,EAAE,6BAA6B;AAMjE,OAAO,EAAE,KAAK,EAAE,4BAA4B;AAE5C,OAAO,EACL,MAAM,EACN,MAAM,EACN,MAAM,EACN,MAAM,EACN,KAAK,EACL,WAAW,EACZ,8BAA8B;AAG/B,OAAO,EAAE,cAAc,EAAE,gCAAsB;AAG/C,MAAM,SAAS,GAAuD;IACpE,aAAa,EAAE,IAAI;IACnB,oBAAoB,EAAE,IAAI;CAC3B,CAAC;AAOF,MAAM,oCAAoC,GAAG,MAAM,CAAC;IAClD,EAAE,EAAE,MAAM,EAAE;IACZ,OAAO,EAAE,KAAK,CAAC,CAAC,MAAM,EAAE,EAAE,KAAK,CAAC,MAAM,EAAE,CAAC,CAAC,CAAC;CAC5C,CAAC,CAAC;AAOH;;GAEG;AACH,MAAM,CAAC,MAAM,2BAA2B,GAIpC;IACF,WAAW,EAAE,CAAC,2BAA2B,CAAC;IAC1C,cAAc,EAAE,kCAAkC;IAClD,SAAS;CACV,CAAC;AAEF;;;;;;;;;;;GAWG;AACH,SAAS,kCAAkC,CACzC,GAAmD,EACnD,GAAuD,EACvD,KAAc,EACd,GAA6B,EAC7B,EAAE,aAAa,EAAE,oBAAoB,EAAmC;IAExE,IAAI,CAAC,aAAa,CAAC,cAAc,CAAC,aAAa,CAAC,EAAE,CAAC;QACjD,OAAO,GAAG,CAAC,cAAc,CAAC,YAAY,EAAE,CAAC,CAAC;IAC5C,CAAC;IAED,MAAM,EAAE,MAAM,EAAE,GAAG,GAAG,CAAC;IAEvB,IAAI,CAAC;QACH,MAAM,EAAE,EAAE,EAAE,OAAO,EAAE,GAAG,kBAAkB,CAAC,MAAM,CAAC,CAAC;QACnD,oBAAoB,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QAClC,GAAG,CAAC,MAAM,GAAG,IAAI,CAAC;IACpB,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,OAAO,GAAG,CAAC,KAAK,CAAC,CAAC;IACpB,CAAC;IAED,OAAO,GAAG,EAAE,CAAC;AACf,CAAC;AAED;;;;;;GAMG;AACH,SAAS,kBAAkB,CAAC,MAAe;IACzC,IAAI,CAAC;QACH,OAAO,MAAM,CAAC,MAAM,EAAE,oCAAoC,CAAC,CAAC;IAC9D,CAAC;IAAC,OAAO,KAAK,EAAE,CAAC;QACf,IAAI,KAAK,YAAY,WAAW,EAAE,CAAC;YACjC,MAAM,SAAS,CAAC,aAAa,CAAC;gBAC5B,OAAO,EAAE,mBAAmB,KAAK,CAAC,OAAO,GAAG;aAC7C,CAAC,CAAC;QACL,CAAC;QACD,0BAA0B;QAC1B,MAAM,SAAS,CAAC,QAAQ,EAAE,CAAC;IAC7B,CAAC;AACH,CAAC","sourcesContent":["import type { JsonRpcEngineEndCallback } from '@metamask/json-rpc-engine';\nimport type { PermittedHandlerExport } from '@metamask/permission-controller';\nimport { providerErrors, rpcErrors } from '@metamask/rpc-errors';\nimport type {\n JsonRpcRequest,\n SendWebSocketMessageParams,\n SendWebSocketMessageResult,\n} from '@metamask/snaps-sdk';\nimport { union } from '@metamask/snaps-sdk';\nimport type { InferMatching } from '@metamask/snaps-utils';\nimport {\n create,\n object,\n number,\n string,\n array,\n StructError,\n} from '@metamask/superstruct';\nimport type { PendingJsonRpcResponse } from '@metamask/utils';\n\nimport { SnapEndowments } from '../endowments';\nimport type { MethodHooksObject } from '../utils';\n\nconst hookNames: MethodHooksObject<SendWebSocketMessageMethodHooks> = {\n hasPermission: true,\n sendWebSocketMessage: true,\n};\n\nexport type SendWebSocketMessageMethodHooks = {\n hasPermission: (permissionName: string) => boolean;\n sendWebSocketMessage: (id: string, data: string | number[]) => void;\n};\n\nconst SendWebSocketMessageParametersStruct = object({\n id: string(),\n message: union([string(), array(number())]),\n});\n\nexport type SendWebSocketMessageParameters = InferMatching<\n typeof SendWebSocketMessageParametersStruct,\n SendWebSocketMessageParams\n>;\n\n/**\n * Handler for the `snap_sendWebSocketMessage` method.\n */\nexport const sendWebSocketMessageHandler: PermittedHandlerExport<\n SendWebSocketMessageMethodHooks,\n SendWebSocketMessageParams,\n SendWebSocketMessageResult\n> = {\n methodNames: ['snap_sendWebSocketMessage'],\n implementation: sendWebSocketMessageImplementation,\n hookNames,\n};\n\n/**\n * The `snap_sendWebSocketMessage` method implementation.\n *\n * @param req - The JSON-RPC request object.\n * @param res - The JSON-RPC response object.\n * @param _next - The `json-rpc-engine` \"next\" callback. Not used by this function.\n * @param end - The `json-rpc-engine` \"end\" callback.\n * @param hooks - The RPC method hooks.\n * @param hooks.hasPermission - The function to check if a snap has the `endowment:network-access` permission.\n * @param hooks.sendWebSocketMessage - The function to send a WebSocket message.\n * @returns Nothing.\n */\nfunction sendWebSocketMessageImplementation(\n req: JsonRpcRequest<SendWebSocketMessageParameters>,\n res: PendingJsonRpcResponse<SendWebSocketMessageResult>,\n _next: unknown,\n end: JsonRpcEngineEndCallback,\n { hasPermission, sendWebSocketMessage }: SendWebSocketMessageMethodHooks,\n): void {\n if (!hasPermission(SnapEndowments.NetworkAccess)) {\n return end(providerErrors.unauthorized());\n }\n\n const { params } = req;\n\n try {\n const { id, message } = getValidatedParams(params);\n sendWebSocketMessage(id, message);\n res.result = null;\n } catch (error) {\n return end(error);\n }\n\n return end();\n}\n\n/**\n * Validates the parameters for the snap_sendWebSocketMessage method.\n *\n * @param params - Parameters to validate.\n * @returns Validated parameters.\n * @throws Throws RPC error if validation fails.\n */\nfunction getValidatedParams(params: unknown): SendWebSocketMessageParameters {\n try {\n return create(params, SendWebSocketMessageParametersStruct);\n } catch (error) {\n if (error instanceof StructError) {\n throw rpcErrors.invalidParams({\n message: `Invalid params: ${error.message}.`,\n });\n }\n /* istanbul ignore next */\n throw rpcErrors.internal();\n }\n}\n"]}