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55 lines
1.1 KiB
55 lines
1.1 KiB
var Decimal = require("decimal.js");
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Decimal8 = Decimal.clone({ precision:8, rounding:8 });
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function doSmartRedirect(req, res, defaultUrl) {
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if (req.session.redirectUrl) {
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res.redirect(req.session.redirectUrl);
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req.session.redirectUrl = null;
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} else {
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res.redirect(defaultUrl);
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}
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res.end();
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}
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function redirectToConnectPageIfNeeded(req, res) {
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if (!req.session.host) {
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req.session.redirectUrl = req.originalUrl;
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res.redirect("/");
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res.end();
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return true;
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}
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return false;
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}
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function hex2ascii(hex) {
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var str = "";
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for (var i = 0; i < hex.length; i += 2) {
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str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
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}
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return str;
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}
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function getBlockReward(blockHeight) {
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var eras = [ new Decimal8(50) ];
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for (var i = 1; i < 34; i++) {
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var previous = eras[i - 1];
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eras.push(new Decimal8(previous).dividedBy(2));
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}
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var index = Math.floor(blockHeight / 210000);
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return eras[index];
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}
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module.exports = {
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doSmartRedirect: doSmartRedirect,
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redirectToConnectPageIfNeeded: redirectToConnectPageIfNeeded,
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hex2ascii: hex2ascii,
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getBlockReward: getBlockReward
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};
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