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Merge pull request #706 from lbryio/fix-channel-surfing-reward

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simplify check for initial claim. fix #290
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Alex Grin 2017-10-30 15:42:08 -04:00 committed by GitHub
commit 03a7644a58
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1 changed files with 2 additions and 51 deletions
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53
ui/js/rewards.js
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@ -1,4 +1,3 @@
const hashes = require("jshashes");
import lbry from "lbry";
import lbryio from "lbryio";
import { doShowSnackBar } from "actions/app";
@ -37,54 +36,6 @@ function rewardMessage(type, amount) {
}[type];
}
function toHex(s) {
let h = "";
for (var i = 0; i < s.length; i++) {
let c = s.charCodeAt(i).toString(16);
if (c.length < 2) {
c = "0".concat(c);
}
h += c;
}
return h;
}
function fromHex(h) {
let s = "";
for (let i = 0; i < h.length; i += 2) {
s += String.fromCharCode(parseInt(h.substr(i, 2), 16));
}
return s;
}
function reverseString(s) {
let o = "";
for (let i = s.length - 1; i >= 0; i--) {
o += s[i];
}
return o;
}
function pack(num) {
return (
"" +
String.fromCharCode(num & 0xff) +
String.fromCharCode((num >> 8) & 0xff) +
String.fromCharCode((num >> 16) & 0xff) +
String.fromCharCode((num >> 24) & 0xff)
);
}
// Returns true if claim is an initial claim, false if it's an update to an existing claim
function isInitialClaim(claim) {
const reversed = reverseString(fromHex(claim.txid));
const concat = reversed.concat(pack(claim.nout));
const sha256 = new hashes.SHA256({ utf8: false }).raw(concat);
const ripemd160 = new hashes.RMD160({ utf8: false }).raw(sha256);
const hash = toHex(reverseString(ripemd160));
return hash == claim.claim_id;
}
const rewards = {};
rewards.TYPE_NEW_DEVELOPER = "new_developer";
@ -149,7 +100,7 @@ rewards.claimReward = function(type) {
claim.name.length &&
claim.name[0] == "@" &&
claim.txid.length &&
isInitialClaim(claim)
claim.category == "claim"
);
});
if (claim) {
@ -173,7 +124,7 @@ rewards.claimReward = function(type) {
claim.name.length &&
claim.name[0] != "@" &&
claim.txid.length &&
isInitialClaim(claim)
claim.category == "claim"
);
});
if (claim) {