Comments (4)
fukamachi
commented on July 16, 2024
Thank you for reporting!
It seems Dex doesn't read the response body at all if the request is HEAD.
https://github.com/fukamachi/dexador/blob/master/src/backend/usocket.lisp#L580
I'll try to fix it when I have time.
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fukamachi
commented on July 16, 2024
Could you show me the HTTP request/response of HEAD?
I'm in trouble with reproducing it.
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glv2
commented on July 16, 2024
Here is a HTTP stream obtained with a function similar to the one described above:
HEAD /json_rpc HTTP/1.1
User-Agent: Dexador/0.9.10 (SBCL 1.3.19); Linux; 4.11.7-gentoo
Host: 127.0.0.1:18081
Accept: */*
HTTP/1.1 401 Unauthorized
Server: Epee-based
Content-Length: 98
Content-Type: text/html
Last-Modified: Tue, 04 Jul 2017 11:51:53 GMT
Accept-Ranges: bytes
WWW-authenticate:Digest qop="auth",algorithm=MD5,realm="monero-rpc",nonce="UVRMfOsaU4p9NdS2OJl/9w==",stale=false
WWW-authenticate:Digest qop="auth",algorithm=MD5-sess,realm="monero-rpc",nonce="UVRMfOsaU4p9NdS2OJl/9w==",stale=false
<html><head><title>Unauthorized Access</title></head><body><h1>401 Unauthorized</h1></body></html>
POST /json_rpc HTTP/1.1
User-Agent: Dexador/0.9.10 (SBCL 1.3.19); Linux; 4.11.7-gentoo
Host: 127.0.0.1:18081
Accept: */*
Content-Type: application/json
Content-Length: 63
Authorization: Digest username="myuser", realm="monero-rpc", nonce="UVRMfOsaU4p9NdS2OJl/9w==", uri="/json_rpc", cnonce="2mxdzsR4sokr155jrrbKwg==", nc=00000001, qop=auth, response="788c7188bfad9b5854a3894a22212bf8", algorithm="MD5"
{"jsonrpc":"2.0","id":633619,"method":"get_info","params":null}
HTTP/1.1 200 Ok
Server: Epee-based
Content-Length: 636
Content-Type: application/json
Last-Modified: Tue, 04 Jul 2017 11:51:53 GMT
Accept-Ranges: bytes
{
"id": 633619,
"jsonrpc": "2.0",
"result": {
"alt_blocks_count": 0,
"block_size_limit": 600000,
"cumulative_difficulty": 2444181338548414,
"difficulty": 12049878825,
"grey_peerlist_size": 4640,
"height": 1346793,
"incoming_connections_count": 0,
"outgoing_connections_count": 8,
"start_time": 1499161595,
"status": "OK",
"target": 120,
"target_height": 1346722,
"testnet": false,
"top_block_hash": "e503344592446a3cb31ddf6e8ac96a95e696338f891e51652d472e376e733cd4",
"tx_count": 1368397,
"tx_pool_size": 5,
"white_peerlist_size": 1000
}
}Dexador signals a http-request-unauthorized for the POST request (the second request) although the server responded with HTTP/1.1 200 Ok.
If I change the first request to be a POST instead of a HEAD, I get a similar HTTP stream (with a POST instead of a HEAD on the first line of course) but everything works fine (the second POST request returns the JSON answer).
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glv2
commented on July 16, 2024
I just read in https://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html that the HTTP server's response to a HEAD request must not contain a body. However in my example the server doesn't behave correctly and puts a HTML body in the response.
Maybe Dexador is very strict on the expected response format and doesn't recover well after the extra data...
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