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41 lines
879 B
JavaScript
41 lines
879 B
JavaScript
// Author: iBug
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function belongsToSubnet(host, list) {
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var ip = host.split(".");
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ip = 0x1000000 * Number(ip[0]) + 0x10000 * Number(ip[1]) +
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0x100 * Number(ip[2]) + Number(ip[3]);
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if (ip < list[0][0])
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return false;
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// Binary search
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var x = 0, y = list.length, middle;
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while (y - x > 1) {
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middle = Math.floor((x + y) / 2);
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if (list[middle][0] < ip)
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x = middle;
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else
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y = middle;
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}
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// Match
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var masked = ip & list[x][1];
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return (masked >>> 0) == (list[x][0] >>> 0);
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}
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var proxy = "__PROXY__";
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var direct = "DIRECT";
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function FindProxyForURL(url, host) {
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var remote = dnsResolve(host);
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if (belongsToSubnet(remote, WHITELIST)) {
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return direct;
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}
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return proxy;
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}
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// Format: [Hex IP, mask]
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// e.g. 1.0.1.0/24 = [0x80008000, 0xFFFFFF00]
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// Source: http://www.ipdeny.com/ipblocks/data/aggregated/cn-aggregated.zone
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