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Blocklist: Move HTML status generation to console

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zzz
2020-09-11 17:21:04 +00:00
parent 30244f9d9b
commit aa07775a32
2 changed files with 236 additions and 165 deletions
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147
apps/routerconsole/java/src/net/i2p/router/web/helpers/ConfigPeerHelper.java
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@ -1,21 +1,152 @@
package net.i2p.router.web.helpers;
import java.io.IOException;
import java.io.StringWriter;
import java.math.BigInteger;
import java.util.Collections;
import java.util.List;
import net.i2p.router.Blocklist;
import net.i2p.router.web.HelperBase;
import net.i2p.util.Addresses;
public class ConfigPeerHelper extends HelperBase {
public ConfigPeerHelper() {}
private static final int MAX_DISPLAY = 1000;
public String getBlocklistSummary() {
StringWriter sw = new StringWriter(4*1024);
try {
_context.blocklist().renderStatusHTML(sw);
} catch (IOException ioe) {
ioe.printStackTrace();
StringWriter out = new StringWriter(4*1024);
Blocklist bl = _context.blocklist();
out.write("<table id=\"bannedips\"><tr><td>" +
"<table id=\"banneduntilrestart\"><tr><th align=\"center\"><b>");
out.write(_t("IPs Banned Until Restart"));
out.write("</b></th></tr>");
List<Integer> singles = bl.getTransientIPv4Blocks();
List<BigInteger> s6 = bl.getTransientIPv6Blocks();
if (!(singles.isEmpty() && s6.isEmpty())) {
if (!singles.isEmpty()) {
Collections.sort(singles);
out.write("<tr id=\"ipv4\" align=\"center\"><td><b>");
out.write(_t("IPv4 Addresses"));
out.write("</b></td></tr>");
}
// first 0 - 127
for (Integer ii : singles) {
int ip = ii.intValue();
if (ip < 0)
continue;
// don't display if on the permanent blocklist also
if (bl.isPermanentlyBlocklisted(ip))
continue;
out.write("<tr><td align=\"center\">");
out.write(Blocklist.toStr(ip));
out.write("</td></tr>\n");
}
// then 128 - 255
for (Integer ii : singles) {
int ip = ii.intValue();
if (ip >= 0)
break;
// don't display if on the permanent blocklist also
if (bl.isPermanentlyBlocklisted(ip))
continue;
out.write("<tr><td align=\"center\">");
out.write(Blocklist.toStr(ip));
out.write("</td></tr>\n");
}
// then IPv6
if (!s6.isEmpty()) {
out.write("<tr id=\"ipv6\" align=\"center\"><td><b>");
out.write(_t("IPv6 Addresses"));
out.write("</b></td></tr>");
Collections.sort(s6);
for (BigInteger bi : s6) {
out.write("<tr><td align=\"center\">");
out.write(Addresses.toString(toIPBytes(bi)));
out.write("</td></tr>\n");
}
}
} else {
out.write("<tr><td><i>");
out.write(_t("none"));
out.write("</i></td></tr>");
}
return sw.toString();
out.write("</table>");
out.write("</td><td>");
out.write("<table id=\"permabanned\"><tr><th align=\"center\" colspan=\"3\"><b>");
out.write(_t("IPs Permanently Banned"));
out.write("</b></th></tr>");
int blocklistSize = bl.getBlocklistSize();
if (blocklistSize > 0) {
out.write("<tr><td align=\"center\" width=\"49%\"><b>");
out.write(_t("From"));
out.write("</b></td><td></td><td align=\"center\" width=\"49%\"><b>");
out.write(_t("To"));
out.write("</b></td></tr>");
long[] blocklist = bl.getPermanentBlocks(MAX_DISPLAY);
// first 0 - 127
for (int i = 0; i < blocklist.length; i++) {
int from = Blocklist.getFrom(blocklist[i]);
if (from < 0)
continue;
out.write("<tr><td align=\"center\" width=\"49%\">");
out.write(Blocklist.toStr(from));
out.write("</td>");
int to = Blocklist.getTo(blocklist[i]);
if (to != from) {
out.write("<td align=\"center\">-</td><td align=\"center\" width=\"49%\">");
out.write(Blocklist.toStr(to));
out.write("</td></tr>\n");
} else {
out.write("<td></td><td width=\"49%\">&nbsp;</td></tr>\n");
}
}
// then 128 - 255
for (int i = 0; i < blocklist.length; i++) {
int from = Blocklist.getFrom(blocklist[i]);
if (from >= 0)
break;
out.write("<tr><td align=\"center\" width=\"49%\">");
out.write(Blocklist.toStr(from));
out.write("</td>");
int to = Blocklist.getTo(blocklist[i]);
if (to != from) {
out.write("<td align=\"center\">-</td><td align=\"center\" width=\"49%\">");
out.write(Blocklist.toStr(to));
out.write("</td></tr>\n");
} else {
out.write("<td></td><td width=\"49%\">&nbsp;</td></tr>\n");
}
}
if (blocklistSize > MAX_DISPLAY)
// very rare, don't bother translating
out.write("<tr><th colspan=3>First " + MAX_DISPLAY + " displayed, see the " +
Blocklist.BLOCKLIST_FILE_DEFAULT + " file for the full list</th></tr>");
} else {
out.write("<tr><td><i>");
out.write(_t("none"));
out.write("</i></td></tr>");
}
out.write("</table>" +
"</td></tr></table>");
return out.toString();
}
/**
* Convert a (non-negative) two's complement IP to exactly 16 bytes
*
* @since IPv6, moved from Blocklist in 0.9.48
*/
private static byte[] toIPBytes(BigInteger bi) {
byte[] ba = bi.toByteArray();
int len = ba.length;
if (len == 16)
return ba;
byte[] rv = new byte[16];
if (len < 16)
System.arraycopy(ba, 0, rv, 16 - len, len);
else
System.arraycopy(ba, len - 16, rv, 0, 16);
return rv;
}
}