diff options
Diffstat (limited to 'app/scripts/lib/inpage-provider.js')
-rw-r--r-- | app/scripts/lib/inpage-provider.js | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/app/scripts/lib/inpage-provider.js b/app/scripts/lib/inpage-provider.js deleted file mode 100644 index 6ef511453..000000000 --- a/app/scripts/lib/inpage-provider.js +++ /dev/null @@ -1,125 +0,0 @@ -const pump = require('pump') -const RpcEngine = require('json-rpc-engine') -const createErrorMiddleware = require('./createErrorMiddleware') -const createIdRemapMiddleware = require('json-rpc-engine/src/idRemapMiddleware') -const createStreamMiddleware = require('json-rpc-middleware-stream') -const LocalStorageStore = require('obs-store') -const asStream = require('obs-store/lib/asStream') -const ObjectMultiplex = require('obj-multiplex') - -module.exports = MetamaskInpageProvider - -function MetamaskInpageProvider (connectionStream) { - const self = this - - // setup connectionStream multiplexing - const mux = self.mux = new ObjectMultiplex() - pump( - connectionStream, - mux, - connectionStream, - (err) => logStreamDisconnectWarning('MetaMask', err) - ) - - // subscribe to metamask public config (one-way) - self.publicConfigStore = new LocalStorageStore({ storageKey: 'MetaMask-Config' }) - - pump( - mux.createStream('publicConfig'), - asStream(self.publicConfigStore), - (err) => logStreamDisconnectWarning('MetaMask PublicConfigStore', err) - ) - - // ignore phishing warning message (handled elsewhere) - mux.ignoreStream('phishing') - - // connect to async provider - const streamMiddleware = createStreamMiddleware() - pump( - streamMiddleware.stream, - mux.createStream('provider'), - streamMiddleware.stream, - (err) => logStreamDisconnectWarning('MetaMask RpcProvider', err) - ) - - // handle sendAsync requests via dapp-side rpc engine - const rpcEngine = new RpcEngine() - rpcEngine.push(createIdRemapMiddleware()) - rpcEngine.push(createErrorMiddleware()) - rpcEngine.push(streamMiddleware) - self.rpcEngine = rpcEngine -} - -// handle sendAsync requests via asyncProvider -// also remap ids inbound and outbound -MetamaskInpageProvider.prototype.sendAsync = function (payload, cb) { - const self = this - - if (payload.method === 'eth_signTypedData') { - console.warn('MetaMask: This experimental version of eth_signTypedData will be deprecated in the next release in favor of the standard as defined in EIP-712. See https://git.io/fNzPl for more information on the new standard.') - } - - self.rpcEngine.handle(payload, cb) -} - - -MetamaskInpageProvider.prototype.send = function (payload) { - const self = this - - let selectedAddress - let result = null - switch (payload.method) { - - case 'eth_accounts': - // read from localStorage - selectedAddress = self.publicConfigStore.getState().selectedAddress - result = selectedAddress ? [selectedAddress] : [] - break - - case 'eth_coinbase': - // read from localStorage - selectedAddress = self.publicConfigStore.getState().selectedAddress - result = selectedAddress || null - break - - case 'eth_uninstallFilter': - self.sendAsync(payload, noop) - result = true - break - - case 'net_version': - const networkVersion = self.publicConfigStore.getState().networkVersion - result = networkVersion || null - break - - // throw not-supported Error - default: - var link = 'https://github.com/MetaMask/faq/blob/master/DEVELOPERS.md#dizzy-all-async---think-of-metamask-as-a-light-client' - var message = `The MetaMask Web3 object does not support synchronous methods like ${payload.method} without a callback parameter. See ${link} for details.` - throw new Error(message) - - } - - // return the result - return { - id: payload.id, - jsonrpc: payload.jsonrpc, - result: result, - } -} - -MetamaskInpageProvider.prototype.isConnected = function () { - return true -} - -MetamaskInpageProvider.prototype.isMetaMask = true - -// util - -function logStreamDisconnectWarning (remoteLabel, err) { - let warningMsg = `MetamaskInpageProvider - lost connection to ${remoteLabel}` - if (err) warningMsg += '\n' + err.stack - console.warn(warningMsg) -} - -function noop () {} |