addressbook: Prevent Base32 hostnames
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@ -179,6 +179,8 @@ public class AddressBook {
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// IDN - basic check, not complete validation
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(host.indexOf("--") < 0 || host.startsWith("xn--") || host.indexOf(".xn--") > 0) &&
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host.replaceAll("[a-z0-9.-]", "").length() == 0 &&
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// Base32 spoofing (52chars.i2p)
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(! (host.length() == 56 && host.substring(0,52).replaceAll("[a-z2-7]", "").length() == 0)) &&
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// some reserved names that may be used for local configuration someday
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(! host.equals("proxy.i2p")) &&
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(! host.equals("router.i2p")) &&
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