Skip to content

Basic support for name mode queries #32

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
ghormoon wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Basic support for name mode queries #32

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
29 changes: 25 additions & 4 deletions njs.d/dns/dns.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,8 @@ function process_doh_request(s, decode, scrub) {
const lines = dataString.split("\r\n");
var bytes;
var packet;
var name;
var type;
if(lines[0].startsWith("GET")) {
var line = lines[0];
var path = line.split(" ")[1]
Expand All @@ -68,6 +70,12 @@ function process_doh_request(s, decode, scrub) {
bytes = Buffer.from(param.slice(4), "base64url");
return true;
}
if (param.startsWith("name=")) {
name = param.split("=")[1];
}
if (param.startsWith("type=")) {
type = param.split("=")[1];
}
return false;
});
}
Expand Down Expand Up @@ -100,10 +108,23 @@ function process_doh_request(s, decode, scrub) {
s.send( bytes, {flush: true} );
}
} else {
if ( ! scrub) {
debug(s, "process_doh_request: DNS Req: " + line.toString() );
s.send("");
data = "";
if ( ! name ) {
return; //both dns and name are undefined
}
if ( ! type ) {
type = "A";
}
debug(s, "process_doh_request: DNS Req: " + line.toString() );
var packet = { id: 0, flags: 1, codes: 0, min_ttl: 2147483647, qd: 1, question: [], answers:[], authority: [], additional: [] };
packet.question = {name: name, class: dns.dns_class.IN, type: dns.dns_type[type]}
var encoded = dns.encode_packet(packet);
debug(s, "process_doh_request: DNS encoded: " + encoded.toString('base64') );
if (scrub) {
domain_scrub(s, encoded, packet);
s.done();
} else {
s.send(to_bytes(encoded.length));
s.send(encoded, {flush: true} );
}
}
});
Expand Down