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i2ptunnel: Fix HTTP websockets by passing through

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Connection headers containing "upgrade" (ticket #2422)
Server-side change only. Client-side in previous commit.
This commit is contained in:
zzz
2019-02-03 17:29:16 +00:00
parent e20a6a9685
commit bd6cf53d53
3 changed files with 11 additions and 2 deletions
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9
apps/i2ptunnel/java/src/net/i2p/i2ptunnel/I2PTunnelHTTPServer.java
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@@ -516,7 +516,12 @@ public class I2PTunnelHTTPServer extends I2PTunnelServer {
}
if (spoofHost != null)
setEntry(headers, "Host", spoofHost);
setEntry(headers, "Connection", "close");
// Force Connection: close, unless websocket
String conn = getEntryOrNull(headers, "Connection");
if (conn == null || !conn.toLowerCase(Locale.US).contains("upgrade"))
setEntry(headers, "Connection", "close");
// we keep the enc sent by the browser before clobbering it, since it may have
// been x-i2p-gzip
String enc = getEntryOrNull(headers, "Accept-Encoding");
@@ -1044,6 +1049,8 @@ public class I2PTunnelHTTPServer extends I2PTunnelServer {
name = "User-Agent";
else if ("referer".equals(lcName))
name = "Referer";
else if ("connection".equals(lcName))
name = "Connection";
// For incoming, we remove certain headers to prevent spoofing.
// For outgoing, we remove certain headers to improve anonymity.