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diff --git a/llhttp/test/request/connection.md b/llhttp/test/request/connection.md new file mode 100644 index 0000000..a03242e --- /dev/null +++ b/llhttp/test/request/connection.md @@ -0,0 +1,732 @@ +Connection header +================= + +## `keep-alive` + +### Setting flag + +<!-- meta={"type": "request"} --> +```http +PUT /url HTTP/1.1 +Connection: keep-alive + + +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.1" +off=17 version complete +off=19 len=10 span[header_field]="Connection" +off=30 header_field complete +off=31 len=10 span[header_value]="keep-alive" +off=43 header_value complete +off=45 headers complete method=4 v=1/1 flags=1 content_length=0 +off=45 message complete +``` + +### Restarting when keep-alive is explicitly + +<!-- meta={"type": "request"} --> +```http +PUT /url HTTP/1.1 +Connection: keep-alive + +PUT /url HTTP/1.1 +Connection: keep-alive + + +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.1" +off=17 version complete +off=19 len=10 span[header_field]="Connection" +off=30 header_field complete +off=31 len=10 span[header_value]="keep-alive" +off=43 header_value complete +off=45 headers complete method=4 v=1/1 flags=1 content_length=0 +off=45 message complete +off=45 reset +off=45 message begin +off=45 len=3 span[method]="PUT" +off=48 method complete +off=49 len=4 span[url]="/url" +off=54 url complete +off=59 len=3 span[version]="1.1" +off=62 version complete +off=64 len=10 span[header_field]="Connection" +off=75 header_field complete +off=76 len=10 span[header_value]="keep-alive" +off=88 header_value complete +off=90 headers complete method=4 v=1/1 flags=1 content_length=0 +off=90 message complete +``` + +### No restart when keep-alive is off (1.0) + +<!-- meta={"type": "request" } --> +```http +PUT /url HTTP/1.0 + +PUT /url HTTP/1.1 + + +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.0" +off=17 version complete +off=21 headers complete method=4 v=1/0 flags=0 content_length=0 +off=21 message complete +off=22 error code=5 reason="Data after `Connection: close`" +``` + +### Resetting flags when keep-alive is off (1.0, lenient) + +Even though we allow restarts in loose mode, the flags should be still set to +`0` upon restart. + +<!-- meta={"type": "request-lenient-keep-alive"} --> +```http +PUT /url HTTP/1.0 +Content-Length: 0 + +PUT /url HTTP/1.1 +Transfer-Encoding: chunked + + +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.0" +off=17 version complete +off=19 len=14 span[header_field]="Content-Length" +off=34 header_field complete +off=35 len=1 span[header_value]="0" +off=38 header_value complete +off=40 headers complete method=4 v=1/0 flags=20 content_length=0 +off=40 message complete +off=40 reset +off=40 message begin +off=40 len=3 span[method]="PUT" +off=43 method complete +off=44 len=4 span[url]="/url" +off=49 url complete +off=54 len=3 span[version]="1.1" +off=57 version complete +off=59 len=17 span[header_field]="Transfer-Encoding" +off=77 header_field complete +off=78 len=7 span[header_value]="chunked" +off=87 header_value complete +off=89 headers complete method=4 v=1/1 flags=208 content_length=0 +``` + +### CRLF between requests, implicit `keep-alive` + +<!-- meta={"type": "request"} --> +```http +POST / HTTP/1.1 +Host: www.example.com +Content-Type: application/x-www-form-urlencoded +Content-Length: 4 + +q=42 + +GET / HTTP/1.1 +``` +_Note the trailing CRLF above_ + +```log +off=0 message begin +off=0 len=4 span[method]="POST" +off=4 method complete +off=5 len=1 span[url]="/" +off=7 url complete +off=12 len=3 span[version]="1.1" +off=15 version complete +off=17 len=4 span[header_field]="Host" +off=22 header_field complete +off=23 len=15 span[header_value]="www.example.com" +off=40 header_value complete +off=40 len=12 span[header_field]="Content-Type" +off=53 header_field complete +off=54 len=33 span[header_value]="application/x-www-form-urlencoded" +off=89 header_value complete +off=89 len=14 span[header_field]="Content-Length" +off=104 header_field complete +off=105 len=1 span[header_value]="4" +off=108 header_value complete +off=110 headers complete method=3 v=1/1 flags=20 content_length=4 +off=110 len=4 span[body]="q=42" +off=114 message complete +off=118 reset +off=118 message begin +off=118 len=3 span[method]="GET" +off=121 method complete +off=122 len=1 span[url]="/" +off=124 url complete +off=129 len=3 span[version]="1.1" +off=132 version complete +``` + +### Not treating `\r` as `-` + +<!-- meta={"type": "request"} --> +```http +PUT /url HTTP/1.1 +Connection: keep\ralive + + +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.1" +off=17 version complete +off=19 len=10 span[header_field]="Connection" +off=30 header_field complete +off=31 len=4 span[header_value]="keep" +off=36 error code=3 reason="Missing expected LF after header value" +``` + +## `close` + +### Setting flag on `close` + +<!-- meta={"type": "request"} --> +```http +PUT /url HTTP/1.1 +Connection: close + + +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.1" +off=17 version complete +off=19 len=10 span[header_field]="Connection" +off=30 header_field complete +off=31 len=5 span[header_value]="close" +off=38 header_value complete +off=40 headers complete method=4 v=1/1 flags=2 content_length=0 +off=40 message complete +``` + +### CRLF between requests, explicit `close` + +`close` means closed connection + +<!-- meta={"type": "request" } --> +```http +POST / HTTP/1.1 +Host: www.example.com +Content-Type: application/x-www-form-urlencoded +Content-Length: 4 +Connection: close + +q=42 + +GET / HTTP/1.1 +``` +_Note the trailing CRLF above_ + +```log +off=0 message begin +off=0 len=4 span[method]="POST" +off=4 method complete +off=5 len=1 span[url]="/" +off=7 url complete +off=12 len=3 span[version]="1.1" +off=15 version complete +off=17 len=4 span[header_field]="Host" +off=22 header_field complete +off=23 len=15 span[header_value]="www.example.com" +off=40 header_value complete +off=40 len=12 span[header_field]="Content-Type" +off=53 header_field complete +off=54 len=33 span[header_value]="application/x-www-form-urlencoded" +off=89 header_value complete +off=89 len=14 span[header_field]="Content-Length" +off=104 header_field complete +off=105 len=1 span[header_value]="4" +off=108 header_value complete +off=108 len=10 span[header_field]="Connection" +off=119 header_field complete +off=120 len=5 span[header_value]="close" +off=127 header_value complete +off=129 headers complete method=3 v=1/1 flags=22 content_length=4 +off=129 len=4 span[body]="q=42" +off=133 message complete +off=138 error code=5 reason="Data after `Connection: close`" +``` + +### CRLF between requests, explicit `close` (lenient) + +Loose mode is more lenient, and allows further requests. + +<!-- meta={"type": "request-lenient-keep-alive"} --> +```http +POST / HTTP/1.1 +Host: www.example.com +Content-Type: application/x-www-form-urlencoded +Content-Length: 4 +Connection: close + +q=42 + +GET / HTTP/1.1 +``` +_Note the trailing CRLF above_ + +```log +off=0 message begin +off=0 len=4 span[method]="POST" +off=4 method complete +off=5 len=1 span[url]="/" +off=7 url complete +off=12 len=3 span[version]="1.1" +off=15 version complete +off=17 len=4 span[header_field]="Host" +off=22 header_field complete +off=23 len=15 span[header_value]="www.example.com" +off=40 header_value complete +off=40 len=12 span[header_field]="Content-Type" +off=53 header_field complete +off=54 len=33 span[header_value]="application/x-www-form-urlencoded" +off=89 header_value complete +off=89 len=14 span[header_field]="Content-Length" +off=104 header_field complete +off=105 len=1 span[header_value]="4" +off=108 header_value complete +off=108 len=10 span[header_field]="Connection" +off=119 header_field complete +off=120 len=5 span[header_value]="close" +off=127 header_value complete +off=129 headers complete method=3 v=1/1 flags=22 content_length=4 +off=129 len=4 span[body]="q=42" +off=133 message complete +off=137 reset +off=137 message begin +off=137 len=3 span[method]="GET" +off=140 method complete +off=141 len=1 span[url]="/" +off=143 url complete +off=148 len=3 span[version]="1.1" +off=151 version complete +``` + +## Parsing multiple tokens + +### Sample + +<!-- meta={"type": "request"} --> +```http +PUT /url HTTP/1.1 +Connection: close, token, upgrade, token, keep-alive + + +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.1" +off=17 version complete +off=19 len=10 span[header_field]="Connection" +off=30 header_field complete +off=31 len=40 span[header_value]="close, token, upgrade, token, keep-alive" +off=73 header_value complete +off=75 headers complete method=4 v=1/1 flags=7 content_length=0 +off=75 message complete +``` + +### Multiple tokens with folding + +<!-- meta={"type": "request"} --> +```http +GET /demo HTTP/1.1 +Host: example.com +Connection: Something, + Upgrade, ,Keep-Alive +Sec-WebSocket-Key2: 12998 5 Y3 1 .P00 +Sec-WebSocket-Protocol: sample +Upgrade: WebSocket +Sec-WebSocket-Key1: 4 @1 46546xW%0l 1 5 +Origin: http://example.com + +Hot diggity dogg +``` + +```log +off=0 message begin +off=0 len=3 span[method]="GET" +off=3 method complete +off=4 len=5 span[url]="/demo" +off=10 url complete +off=15 len=3 span[version]="1.1" +off=18 version complete +off=20 len=4 span[header_field]="Host" +off=25 header_field complete +off=26 len=11 span[header_value]="example.com" +off=39 header_value complete +off=39 len=10 span[header_field]="Connection" +off=50 header_field complete +off=51 len=10 span[header_value]="Something," +off=63 len=21 span[header_value]=" Upgrade, ,Keep-Alive" +off=86 header_value complete +off=86 len=18 span[header_field]="Sec-WebSocket-Key2" +off=105 header_field complete +off=106 len=18 span[header_value]="12998 5 Y3 1 .P00" +off=126 header_value complete +off=126 len=22 span[header_field]="Sec-WebSocket-Protocol" +off=149 header_field complete +off=150 len=6 span[header_value]="sample" +off=158 header_value complete +off=158 len=7 span[header_field]="Upgrade" +off=166 header_field complete +off=167 len=9 span[header_value]="WebSocket" +off=178 header_value complete +off=178 len=18 span[header_field]="Sec-WebSocket-Key1" +off=197 header_field complete +off=198 len=20 span[header_value]="4 @1 46546xW%0l 1 5" +off=220 header_value complete +off=220 len=6 span[header_field]="Origin" +off=227 header_field complete +off=228 len=18 span[header_value]="http://example.com" +off=248 header_value complete +off=250 headers complete method=1 v=1/1 flags=15 content_length=0 +off=250 message complete +off=250 error code=22 reason="Pause on CONNECT/Upgrade" +``` + +### Multiple tokens with folding and LWS + +<!-- meta={"type": "request"} --> +```http +GET /demo HTTP/1.1 +Connection: keep-alive, upgrade +Upgrade: WebSocket + +Hot diggity dogg +``` + +```log +off=0 message begin +off=0 len=3 span[method]="GET" +off=3 method complete +off=4 len=5 span[url]="/demo" +off=10 url complete +off=15 len=3 span[version]="1.1" +off=18 version complete +off=20 len=10 span[header_field]="Connection" +off=31 header_field complete +off=32 len=19 span[header_value]="keep-alive, upgrade" +off=53 header_value complete +off=53 len=7 span[header_field]="Upgrade" +off=61 header_field complete +off=62 len=9 span[header_value]="WebSocket" +off=73 header_value complete +off=75 headers complete method=1 v=1/1 flags=15 content_length=0 +off=75 message complete +off=75 error code=22 reason="Pause on CONNECT/Upgrade" +``` + +### Multiple tokens with folding, LWS, and CRLF + +<!-- meta={"type": "request"} --> +```http +GET /demo HTTP/1.1 +Connection: keep-alive, \r\n upgrade +Upgrade: WebSocket + +Hot diggity dogg +``` + +```log +off=0 message begin +off=0 len=3 span[method]="GET" +off=3 method complete +off=4 len=5 span[url]="/demo" +off=10 url complete +off=15 len=3 span[version]="1.1" +off=18 version complete +off=20 len=10 span[header_field]="Connection" +off=31 header_field complete +off=32 len=12 span[header_value]="keep-alive, " +off=46 len=8 span[header_value]=" upgrade" +off=56 header_value complete +off=56 len=7 span[header_field]="Upgrade" +off=64 header_field complete +off=65 len=9 span[header_value]="WebSocket" +off=76 header_value complete +off=78 headers complete method=1 v=1/1 flags=15 content_length=0 +off=78 message complete +off=78 error code=22 reason="Pause on CONNECT/Upgrade" +``` + +### Invalid whitespace token with `Connection` header field + +<!-- meta={"type": "request"} --> +```http +PUT /url HTTP/1.1 +Connection : upgrade +Content-Length: 4 +Upgrade: ws + +abcdefgh +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.1" +off=17 version complete +off=19 len=10 span[header_field]="Connection" +off=30 error code=10 reason="Invalid header field char" +``` + +### Invalid whitespace token with `Connection` header field (lenient) + +<!-- meta={"type": "request-lenient-headers"} --> +```http +PUT /url HTTP/1.1 +Connection : upgrade +Content-Length: 4 +Upgrade: ws + +abcdefgh +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.1" +off=17 version complete +off=19 len=11 span[header_field]="Connection " +off=31 header_field complete +off=32 len=7 span[header_value]="upgrade" +off=41 header_value complete +off=41 len=14 span[header_field]="Content-Length" +off=56 header_field complete +off=57 len=1 span[header_value]="4" +off=60 header_value complete +off=60 len=7 span[header_field]="Upgrade" +off=68 header_field complete +off=69 len=2 span[header_value]="ws" +off=73 header_value complete +off=75 headers complete method=4 v=1/1 flags=34 content_length=4 +off=75 len=4 span[body]="abcd" +off=79 message complete +off=79 error code=22 reason="Pause on CONNECT/Upgrade" +``` + +## `upgrade` + +### Setting a flag and pausing + +<!-- meta={"type": "request"} --> +```http +PUT /url HTTP/1.1 +Connection: upgrade +Upgrade: ws + + +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.1" +off=17 version complete +off=19 len=10 span[header_field]="Connection" +off=30 header_field complete +off=31 len=7 span[header_value]="upgrade" +off=40 header_value complete +off=40 len=7 span[header_field]="Upgrade" +off=48 header_field complete +off=49 len=2 span[header_value]="ws" +off=53 header_value complete +off=55 headers complete method=4 v=1/1 flags=14 content_length=0 +off=55 message complete +off=55 error code=22 reason="Pause on CONNECT/Upgrade" +``` + +### Emitting part of body and pausing + +<!-- meta={"type": "request"} --> +```http +PUT /url HTTP/1.1 +Connection: upgrade +Content-Length: 4 +Upgrade: ws + +abcdefgh +``` + +```log +off=0 message begin +off=0 len=3 span[method]="PUT" +off=3 method complete +off=4 len=4 span[url]="/url" +off=9 url complete +off=14 len=3 span[version]="1.1" +off=17 version complete +off=19 len=10 span[header_field]="Connection" +off=30 header_field complete +off=31 len=7 span[header_value]="upgrade" +off=40 header_value complete +off=40 len=14 span[header_field]="Content-Length" +off=55 header_field complete +off=56 len=1 span[header_value]="4" +off=59 header_value complete +off=59 len=7 span[header_field]="Upgrade" +off=67 header_field complete +off=68 len=2 span[header_value]="ws" +off=72 header_value complete +off=74 headers complete method=4 v=1/1 flags=34 content_length=4 +off=74 len=4 span[body]="abcd" +off=78 message complete +off=78 error code=22 reason="Pause on CONNECT/Upgrade" +``` + +### Upgrade GET request + +<!-- meta={"type": "request"} --> +```http +GET /demo HTTP/1.1 +Host: example.com +Connection: Upgrade +Sec-WebSocket-Key2: 12998 5 Y3 1 .P00 +Sec-WebSocket-Protocol: sample +Upgrade: WebSocket +Sec-WebSocket-Key1: 4 @1 46546xW%0l 1 5 +Origin: http://example.com + +Hot diggity dogg +``` + +```log +off=0 message begin +off=0 len=3 span[method]="GET" +off=3 method complete +off=4 len=5 span[url]="/demo" +off=10 url complete +off=15 len=3 span[version]="1.1" +off=18 version complete +off=20 len=4 span[header_field]="Host" +off=25 header_field complete +off=26 len=11 span[header_value]="example.com" +off=39 header_value complete +off=39 len=10 span[header_field]="Connection" +off=50 header_field complete +off=51 len=7 span[header_value]="Upgrade" +off=60 header_value complete +off=60 len=18 span[header_field]="Sec-WebSocket-Key2" +off=79 header_field complete +off=80 len=18 span[header_value]="12998 5 Y3 1 .P00" +off=100 header_value complete +off=100 len=22 span[header_field]="Sec-WebSocket-Protocol" +off=123 header_field complete +off=124 len=6 span[header_value]="sample" +off=132 header_value complete +off=132 len=7 span[header_field]="Upgrade" +off=140 header_field complete +off=141 len=9 span[header_value]="WebSocket" +off=152 header_value complete +off=152 len=18 span[header_field]="Sec-WebSocket-Key1" +off=171 header_field complete +off=172 len=20 span[header_value]="4 @1 46546xW%0l 1 5" +off=194 header_value complete +off=194 len=6 span[header_field]="Origin" +off=201 header_field complete +off=202 len=18 span[header_value]="http://example.com" +off=222 header_value complete +off=224 headers complete method=1 v=1/1 flags=14 content_length=0 +off=224 message complete +off=224 error code=22 reason="Pause on CONNECT/Upgrade" +``` + +### Upgrade POST request + +<!-- meta={"type": "request"} --> +```http +POST /demo HTTP/1.1 +Host: example.com +Connection: Upgrade +Upgrade: HTTP/2.0 +Content-Length: 15 + +sweet post body\ +Hot diggity dogg +``` + +```log +off=0 message begin +off=0 len=4 span[method]="POST" +off=4 method complete +off=5 len=5 span[url]="/demo" +off=11 url complete +off=16 len=3 span[version]="1.1" +off=19 version complete +off=21 len=4 span[header_field]="Host" +off=26 header_field complete +off=27 len=11 span[header_value]="example.com" +off=40 header_value complete +off=40 len=10 span[header_field]="Connection" +off=51 header_field complete +off=52 len=7 span[header_value]="Upgrade" +off=61 header_value complete +off=61 len=7 span[header_field]="Upgrade" +off=69 header_field complete +off=70 len=8 span[header_value]="HTTP/2.0" +off=80 header_value complete +off=80 len=14 span[header_field]="Content-Length" +off=95 header_field complete +off=96 len=2 span[header_value]="15" +off=100 header_value complete +off=102 headers complete method=3 v=1/1 flags=34 content_length=15 +off=102 len=15 span[body]="sweet post body" +off=117 message complete +off=117 error code=22 reason="Pause on CONNECT/Upgrade" +``` |