150 lines
4.2 KiB
JavaScript
150 lines
4.2 KiB
JavaScript
if(typeof ReadOnlyProvider === "undefined"){
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var callbackId = 0;
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var callbacks = {};
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function bridgeSend(data){
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WebViewBridge.send(JSON.stringify(data));
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}
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function sendAPIrequest(permission) {
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var messageId = callbackId++;
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bridgeSend({
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type: 'api-request',
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permission: permission,
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messageId: messageId,
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host: window.location.hostname
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});
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return new Promise(function (resolve, reject) { callbacks[messageId] = {resolve: resolve, reject: reject};});
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}
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WebViewBridge.onMessage = function (message) {
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data = JSON.parse(message);
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var id = data.messageId;
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var callback = callbacks[id];
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if (callback)
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{
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if (data.type === "api-response")
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{
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if (data.isAllowed)
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{
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if (data.permission == 'web3')
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{
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window.currentAccountAddress = data.data;
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callback.resolve();
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}
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else
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{
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callback.resolve(data.data);
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}
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}
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else
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{
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callback.reject(new Error("Denied"));
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}
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}
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else if (data.type === "web3-send-async-callback")
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{
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if (callback.results)
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{
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callback.results.push(data.error || data.result);
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if (callback.results.length == callback.num)
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callback.callback(undefined, callback.results);
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}
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else
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{
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callback.callback(data.error, data.result);
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}
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}
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}
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};
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function web3Response (payload, result){
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return {id: payload.id,
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jsonrpc: "2.0",
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result: result};
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}
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function getSyncResponse (payload) {
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console.log("getSyncResponse " + payload.method + " !")
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if (payload.method == "eth_accounts" && currentAccountAddress){
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return web3Response(payload, [currentAccountAddress])
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} else if (payload.method == "eth_coinbase" && currentAccountAddress){
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return web3Response(payload, currentAccountAddress)
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} else if (payload.method == "net_version"){
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return web3Response(payload, networkId)
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} else if (payload.method == "eth_uninstallFilter"){
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return web3Response(payload, true);
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} else {
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return null;
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}
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}
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var StatusAPI = function () {};
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StatusAPI.prototype.getContactCode = function () {
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return sendAPIrequest('contact-code');
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};
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var ReadOnlyProvider = function () {};
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ReadOnlyProvider.prototype.isStatus = true;
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ReadOnlyProvider.prototype.isConnected = function () { return true; };
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ReadOnlyProvider.prototype.status = new StatusAPI();
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ReadOnlyProvider.prototype.send = function (payload) {
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if (payload.method == "eth_uninstallFilter"){
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this.sendAsync(payload, function (res, err) {})
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}
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var syncResponse = getSyncResponse(payload);
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if (syncResponse){
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return syncResponse;
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} else {
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return web3Response(payload, null);
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}
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};
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ReadOnlyProvider.prototype.enable = function () {
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return sendAPIrequest('web3');
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};
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ReadOnlyProvider.prototype.sendAsync = function (payload, callback) {
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var syncResponse = getSyncResponse(payload);
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if (syncResponse && callback){
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callback(null, syncResponse);
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}
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else {
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var messageId = callbackId++;
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if (Array.isArray(payload))
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{
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callbacks[messageId] = {num: payload.length,
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results: [],
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callback: callback};
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for (var i in payload) {
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bridgeSend({type: 'web3-send-async-read-only',
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messageId: messageId,
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payload: payload[i],
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host: window.location.hostname});
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}
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}
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else
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{
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callbacks[messageId] = {callback: callback};
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bridgeSend({type: 'web3-send-async-read-only',
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messageId: messageId,
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payload: payload,
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host: window.location.hostname});
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}
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}
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};
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}
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console.log("ReadOnlyProvider");
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ethereum = new ReadOnlyProvider(); |