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view tests/test-http-api-httpv2.t @ 44363:f7459da77f23

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nodemap: introduce an option to use mmap to read the nodemap mapping The performance and memory benefit is much greater if we don't have to copy all the data in memory for each information. So we introduce an option (on by default) to read the data using mmap. This changeset is the last one definition the API for index support nodemap data. (they have to be able to use the mmaping). Below are some benchmark comparing the best we currently have in 5.3 with the final step of this series (using the persistent nodemap implementation in Rust). The benchmark run `hg perfindex` with various revset and the following variants: Before: * do not use the persistent nodemap * use the CPython implementation of the index for nodemap * use mmapping of the changelog index After: * use the MixedIndex Rust code, with the NodeTree object for nodemap access (still in review) * use the persistent nodemap data from disk * access the persistent nodemap data through mmap * use mmapping of the changelog index The persistent nodemap greatly speed up most operation on very large repositories. Some of the previously very fast lookup end up a bit slower because the persistent nodemap has to be setup. However the absolute slowdown is very small and won't matters in the big picture. Here are some numbers (in seconds) for the reference copy of mozilla-try: Revset Before After abs-change speedup -10000: 0.004622 0.005532 0.000910 × 0.83 -10: 0.000050 0.000132 0.000082 × 0.37 tip 0.000052 0.000085 0.000033 × 0.61 0 + (-10000:) 0.028222 0.005337 -0.022885 × 5.29 0 0.023521 0.000084 -0.023437 × 280.01 (-10000:) + 0 0.235539 0.005308 -0.230231 × 44.37 (-10:) + :9 0.232883 0.000180 -0.232703 ×1293.79 (-10000:) + (:99) 0.238735 0.005358 -0.233377 × 44.55 :99 + (-10000:) 0.317942 0.005593 -0.312349 × 56.84 :9 + (-10:) 0.313372 0.000179 -0.313193 ×1750.68 :9 0.316450 0.000143 -0.316307 ×2212.93 On smaller repositories, the cost of nodemap related operation is not as big, so the win is much more modest. Yet it helps shaving a handful of millisecond here and there. Here are some numbers (in seconds) for the reference copy of mercurial: Revset Before After abs-change speedup -10: 0.000065 0.000097 0.000032 × 0.67 tip 0.000063 0.000078 0.000015 × 0.80 0 0.000561 0.000079 -0.000482 × 7.10 -10000: 0.004609 0.003648 -0.000961 × 1.26 0 + (-10000:) 0.005023 0.003715 -0.001307 × 1.35 (-10:) + :9 0.002187 0.000108 -0.002079 ×20.25 (-10000:) + 0 0.006252 0.003716 -0.002536 × 1.68 (-10000:) + (:99) 0.006367 0.003707 -0.002660 × 1.71 :9 + (-10:) 0.003846 0.000110 -0.003736 ×34.96 :9 0.003854 0.000099 -0.003755 ×38.92 :99 + (-10000:) 0.007644 0.003778 -0.003866 × 2.02 Differential Revision: https://phab.mercurial-scm.org/D7894
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Tue, 11 Feb 2020 11:18:52 +0100
parents 675775c33ab6
children
line wrap: on
line source

#require no-chg

  $ . $TESTDIR/wireprotohelpers.sh
  $ enabledummycommands

  $ hg init server
  $ cat > server/.hg/hgrc << EOF
  > [experimental]
  > web.apiserver = true
  > EOF
  $ hg -R server serve -p $HGPORT -d --pid-file hg.pid
  $ cat hg.pid > $DAEMON_PIDS

HTTP v2 protocol not enabled by default

  $ sendhttpraw << EOF
  > httprequest GET api/$HTTPV2
  >     user-agent: test
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     GET /api/exp-http-v2-0003 HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 404 Not Found\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: text/plain\r\n
  s>     Content-Length: 33\r\n
  s>     \r\n
  s>     API exp-http-v2-0003 not enabled\n

Restart server with support for HTTP v2 API

  $ killdaemons.py
  $ enablehttpv2 server
  $ hg -R server serve -p $HGPORT -d --pid-file hg.pid
  $ cat hg.pid > $DAEMON_PIDS

Request to unknown command yields 404

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/badcommand
  >     user-agent: test
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/badcommand HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 404 Not Found\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: text/plain\r\n
  s>     Content-Length: 42\r\n
  s>     \r\n
  s>     unknown wire protocol command: badcommand\n

GET to read-only command yields a 405

  $ sendhttpraw << EOF
  > httprequest GET api/$HTTPV2/ro/customreadonly
  >     user-agent: test
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     GET /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 405 Method Not Allowed\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Allow: POST\r\n
  s>     Content-Length: 30\r\n
  s>     \r\n
  s>     commands require POST requests

Missing Accept header results in 406

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/customreadonly
  >     user-agent: test
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 406 Not Acceptable\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: text/plain\r\n
  s>     Content-Length: 85\r\n
  s>     \r\n
  s>     client MUST specify Accept header with value: application/mercurial-exp-framing-0006\n

Bad Accept header results in 406

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/customreadonly
  >     accept: invalid
  >     user-agent: test
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: invalid\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 406 Not Acceptable\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: text/plain\r\n
  s>     Content-Length: 85\r\n
  s>     \r\n
  s>     client MUST specify Accept header with value: application/mercurial-exp-framing-0006\n

Bad Content-Type header results in 415

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/customreadonly
  >     accept: $MEDIATYPE
  >     user-agent: test
  >     content-type: badmedia
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     content-type: badmedia\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 415 Unsupported Media Type\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: text/plain\r\n
  s>     Content-Length: 88\r\n
  s>     \r\n
  s>     client MUST send Content-Type header with value: application/mercurial-exp-framing-0006\n

Request to read-only command works out of the box

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/customreadonly
  >     accept: $MEDIATYPE
  >     content-type: $MEDIATYPE
  >     user-agent: test
  >     frame 1 1 stream-begin command-request new cbor:{b'name': b'customreadonly'}
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     *\r\n (glob)
  s>     content-type: application/mercurial-exp-framing-0006\r\n
  s>     user-agent: test\r\n
  s>     content-length: 29\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s>     \x15\x00\x00\x01\x00\x01\x01\x11\xa1DnameNcustomreadonly
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-exp-framing-0006\r\n
  s>     Transfer-Encoding: chunked\r\n
  s>     \r\n
  s>     11\r\n
  s>     \t\x00\x00\x01\x00\x02\x01\x92Hidentity
  s>     \r\n
  s>     13\r\n
  s>     \x0b\x00\x00\x01\x00\x02\x041\xa1FstatusBok
  s>     \r\n
  s>     27\r\n
  s>     \x1f\x00\x00\x01\x00\x02\x041X\x1dcustomreadonly bytes response
  s>     \r\n
  s>     8\r\n
  s>     \x00\x00\x00\x01\x00\x02\x002
  s>     \r\n
  s>     0\r\n
  s>     \r\n

  $ sendhttpv2peerverbose << EOF
  > command customreadonly
  > EOF
  creating http peer for wire protocol version 2
  sending customreadonly command
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     content-type: application/mercurial-exp-framing-0006\r\n
  s>     content-length: 65\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     user-agent: Mercurial debugwireproto\r\n
  s>     \r\n
  s>     \x1c\x00\x00\x01\x00\x01\x01\x82\xa1Pcontentencodings\x81Hidentity\x15\x00\x00\x01\x00\x01\x00\x11\xa1DnameNcustomreadonly
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-exp-framing-0006\r\n
  s>     Transfer-Encoding: chunked\r\n
  s>     \r\n
  s>     11\r\n
  s>     \t\x00\x00\x01\x00\x02\x01\x92
  s>     Hidentity
  s>     \r\n
  s>     13\r\n
  s>     \x0b\x00\x00\x01\x00\x02\x041
  s>     \xa1FstatusBok
  s>     \r\n
  s>     27\r\n
  s>     \x1f\x00\x00\x01\x00\x02\x041
  s>     X\x1dcustomreadonly bytes response
  s>     \r\n
  s>     8\r\n
  s>     \x00\x00\x00\x01\x00\x02\x002
  s>     \r\n
  s>     0\r\n
  s>     \r\n
  response: gen[
    b'customreadonly bytes response'
  ]
  (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)

Request to read-write command fails because server is read-only by default

GET to read-write request yields 405

  $ sendhttpraw << EOF
  > httprequest GET api/$HTTPV2/rw/customreadonly
  >     user-agent: test
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     GET /api/exp-http-v2-0003/rw/customreadonly HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 405 Method Not Allowed\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Allow: POST\r\n
  s>     Content-Length: 30\r\n
  s>     \r\n
  s>     commands require POST requests

Even for unknown commands

  $ sendhttpraw << EOF
  > httprequest GET api/$HTTPV2/rw/badcommand
  >     user-agent: test
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     GET /api/exp-http-v2-0003/rw/badcommand HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 405 Method Not Allowed\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Allow: POST\r\n
  s>     Content-Length: 30\r\n
  s>     \r\n
  s>     commands require POST requests

SSL required by default

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/rw/customreadonly
  >     user-agent: test
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/rw/customreadonly HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 403 ssl required\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Length: 17\r\n
  s>     \r\n
  s>     permission denied

Restart server to allow non-ssl read-write operations

  $ killdaemons.py
  $ cat > server/.hg/hgrc << EOF
  > [experimental]
  > web.apiserver = true
  > web.api.http-v2 = true
  > [web]
  > push_ssl = false
  > allow-push = *
  > EOF

  $ hg -R server serve -p $HGPORT -d --pid-file hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

Authorized request for valid read-write command works

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/rw/customreadonly
  >     user-agent: test
  >     accept: $MEDIATYPE
  >     content-type: $MEDIATYPE
  >     frame 1 1 stream-begin command-request new cbor:{b'name': b'customreadonly'}
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/rw/customreadonly HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     content-type: application/mercurial-exp-framing-0006\r\n
  s>     user-agent: test\r\n
  s>     content-length: 29\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s>     \x15\x00\x00\x01\x00\x01\x01\x11\xa1DnameNcustomreadonly
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-exp-framing-0006\r\n
  s>     Transfer-Encoding: chunked\r\n
  s>     \r\n
  s>     11\r\n
  s>     \t\x00\x00\x01\x00\x02\x01\x92Hidentity
  s>     \r\n
  s>     13\r\n
  s>     \x0b\x00\x00\x01\x00\x02\x041\xa1FstatusBok
  s>     \r\n
  s>     27\r\n
  s>     \x1f\x00\x00\x01\x00\x02\x041X\x1dcustomreadonly bytes response
  s>     \r\n
  s>     8\r\n
  s>     \x00\x00\x00\x01\x00\x02\x002
  s>     \r\n
  s>     0\r\n
  s>     \r\n

Authorized request for unknown command is rejected

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/rw/badcommand
  >     user-agent: test
  >     accept: $MEDIATYPE
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/rw/badcommand HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 404 Not Found\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: text/plain\r\n
  s>     Content-Length: 42\r\n
  s>     \r\n
  s>     unknown wire protocol command: badcommand\n

debugreflect isn't enabled by default

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/debugreflect
  >     user-agent: test
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/debugreflect HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     user-agent: test\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s> makefile('rb', None)
  s>     HTTP/1.1 404 Not Found\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: text/plain\r\n
  s>     Content-Length: 34\r\n
  s>     \r\n
  s>     debugreflect service not available

Restart server to get debugreflect endpoint

  $ killdaemons.py
  $ cat > server/.hg/hgrc << EOF
  > [experimental]
  > web.apiserver = true
  > web.api.debugreflect = true
  > web.api.http-v2 = true
  > [web]
  > push_ssl = false
  > allow-push = *
  > EOF

  $ hg -R server serve -p $HGPORT -d --pid-file hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

Command frames can be reflected via debugreflect

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/debugreflect
  >     accept: $MEDIATYPE
  >     content-type: $MEDIATYPE
  >     user-agent: test
  >     frame 1 1 stream-begin command-request new cbor:{b'name': b'command1', b'args': {b'foo': b'val1', b'bar1': b'val'}}
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/debugreflect HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     content-type: application/mercurial-exp-framing-0006\r\n
  s>     user-agent: test\r\n
  s>     content-length: 47\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s>     \'\x00\x00\x01\x00\x01\x01\x11\xa2Dargs\xa2Dbar1CvalCfooDval1DnameHcommand1
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: text/plain\r\n
  s>     Content-Length: 223\r\n
  s>     \r\n
  s>     received: 1 1 1 \xa2Dargs\xa2Dbar1CvalCfooDval1DnameHcommand1\n
  s>     ["runcommand", {"args": {"bar1": "val", "foo": "val1"}, "command": "command1", "data": null, "redirect": null, "requestid": 1}]\n
  s>     received: <no frame>\n
  s>     {"action": "noop"}

Multiple requests to regular command URL are not allowed

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/customreadonly
  >     accept: $MEDIATYPE
  >     content-type: $MEDIATYPE
  >     user-agent: test
  >     frame 1 1 stream-begin command-request new cbor:{b'name': b'customreadonly'}
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/customreadonly HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     content-type: application/mercurial-exp-framing-0006\r\n
  s>     user-agent: test\r\n
  s>     content-length: 29\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s>     \x15\x00\x00\x01\x00\x01\x01\x11\xa1DnameNcustomreadonly
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-exp-framing-0006\r\n
  s>     Transfer-Encoding: chunked\r\n
  s>     \r\n
  s>     11\r\n
  s>     \t\x00\x00\x01\x00\x02\x01\x92Hidentity
  s>     \r\n
  s>     13\r\n
  s>     \x0b\x00\x00\x01\x00\x02\x041\xa1FstatusBok
  s>     \r\n
  s>     27\r\n
  s>     \x1f\x00\x00\x01\x00\x02\x041X\x1dcustomreadonly bytes response
  s>     \r\n
  s>     8\r\n
  s>     \x00\x00\x00\x01\x00\x02\x002
  s>     \r\n
  s>     0\r\n
  s>     \r\n

Multiple requests to "multirequest" URL are allowed

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/multirequest
  >     accept: $MEDIATYPE
  >     content-type: $MEDIATYPE
  >     user-agent: test
  >     frame 1 1 stream-begin command-request new cbor:{b'name': b'customreadonly'}
  >     frame 3 1 0 command-request new cbor:{b'name': b'customreadonly'}
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/multirequest HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     *\r\n (glob)
  s>     *\r\n (glob)
  s>     user-agent: test\r\n
  s>     content-length: 58\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s>     \x15\x00\x00\x01\x00\x01\x01\x11\xa1DnameNcustomreadonly\x15\x00\x00\x03\x00\x01\x00\x11\xa1DnameNcustomreadonly
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-exp-framing-0006\r\n
  s>     Transfer-Encoding: chunked\r\n
  s>     \r\n
  s>     11\r\n
  s>     \t\x00\x00\x01\x00\x02\x01\x92Hidentity
  s>     \r\n
  s>     13\r\n
  s>     \x0b\x00\x00\x01\x00\x02\x041\xa1FstatusBok
  s>     \r\n
  s>     27\r\n
  s>     \x1f\x00\x00\x01\x00\x02\x041X\x1dcustomreadonly bytes response
  s>     \r\n
  s>     8\r\n
  s>     \x00\x00\x00\x01\x00\x02\x002
  s>     \r\n
  s>     13\r\n
  s>     \x0b\x00\x00\x03\x00\x02\x041\xa1FstatusBok
  s>     \r\n
  s>     27\r\n
  s>     \x1f\x00\x00\x03\x00\x02\x041X\x1dcustomreadonly bytes response
  s>     \r\n
  s>     8\r\n
  s>     \x00\x00\x00\x03\x00\x02\x002
  s>     \r\n
  s>     0\r\n
  s>     \r\n

Interleaved requests to "multirequest" are processed

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/multirequest
  >     accept: $MEDIATYPE
  >     content-type: $MEDIATYPE
  >     user-agent: test
  >     frame 1 1 stream-begin command-request new|more \xa2Dargs\xa1Inamespace
  >     frame 3 1 0 command-request new|more \xa2Dargs\xa1Inamespace
  >     frame 3 1 0 command-request continuation JnamespacesDnameHlistkeys
  >     frame 1 1 0 command-request continuation IbookmarksDnameHlistkeys
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/multirequest HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     content-type: application/mercurial-exp-framing-0006\r\n
  s>     user-agent: test\r\n
  s>     content-length: 115\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s>     \x11\x00\x00\x01\x00\x01\x01\x15\xa2Dargs\xa1Inamespace\x11\x00\x00\x03\x00\x01\x00\x15\xa2Dargs\xa1Inamespace\x19\x00\x00\x03\x00\x01\x00\x12JnamespacesDnameHlistkeys\x18\x00\x00\x01\x00\x01\x00\x12IbookmarksDnameHlistkeys
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-exp-framing-0006\r\n
  s>     Transfer-Encoding: chunked\r\n
  s>     \r\n
  s>     11\r\n
  s>     \t\x00\x00\x03\x00\x02\x01\x92Hidentity
  s>     \r\n
  s>     13\r\n
  s>     \x0b\x00\x00\x03\x00\x02\x041\xa1FstatusBok
  s>     \r\n
  s>     28\r\n
  s>      \x00\x00\x03\x00\x02\x041\xa3Ibookmarks@Jnamespaces@Fphases@
  s>     \r\n
  s>     8\r\n
  s>     \x00\x00\x00\x03\x00\x02\x002
  s>     \r\n
  s>     13\r\n
  s>     \x0b\x00\x00\x01\x00\x02\x041\xa1FstatusBok
  s>     \r\n
  s>     9\r\n
  s>     \x01\x00\x00\x01\x00\x02\x041\xa0
  s>     \r\n
  s>     8\r\n
  s>     \x00\x00\x00\x01\x00\x02\x002
  s>     \r\n
  s>     0\r\n
  s>     \r\n

Restart server to disable read-write access

  $ killdaemons.py
  $ cat > server/.hg/hgrc << EOF
  > [experimental]
  > web.apiserver = true
  > web.api.debugreflect = true
  > web.api.http-v2 = true
  > [web]
  > push_ssl = false
  > EOF

  $ hg -R server serve -p $HGPORT -d --pid-file hg.pid -E error.log
  $ cat hg.pid > $DAEMON_PIDS

Attempting to run a read-write command via multirequest on read-only URL is not allowed

  $ sendhttpraw << EOF
  > httprequest POST api/$HTTPV2/ro/multirequest
  >     accept: $MEDIATYPE
  >     content-type: $MEDIATYPE
  >     user-agent: test
  >     frame 1 1 stream-begin command-request new cbor:{b'name': b'pushkey'}
  > EOF
  using raw connection to peer
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/multirequest HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     content-type: application/mercurial-exp-framing-0006\r\n
  s>     user-agent: test\r\n
  s>     content-length: 22\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     \r\n
  s>     \x0e\x00\x00\x01\x00\x01\x01\x11\xa1DnameGpushkey
  s> makefile('rb', None)
  s>     HTTP/1.1 403 Forbidden\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: text/plain\r\n
  s>     Content-Length: 52\r\n
  s>     \r\n
  s>     insufficient permissions to execute command: pushkey

Defining an invalid content encoding results in warning

  $ hg --config experimental.httppeer.v2-encoder-order=identity,badencoder --verbose debugwireproto --nologhandshake --peer http2 http://$LOCALIP:$HGPORT/ << EOF
  > command heads
  > EOF
  creating http peer for wire protocol version 2
  sending heads command
  wire protocol version 2 encoder referenced in config (badencoder) is not known; ignoring
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/heads HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     content-type: application/mercurial-exp-framing-0006\r\n
  s>     content-length: 56\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     user-agent: Mercurial debugwireproto\r\n
  s>     \r\n
  s>     \x1c\x00\x00\x01\x00\x01\x01\x82\xa1Pcontentencodings\x81Hidentity\x0c\x00\x00\x01\x00\x01\x00\x11\xa1DnameEheads
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-exp-framing-0006\r\n
  s>     Transfer-Encoding: chunked\r\n
  s>     \r\n
  s>     11\r\n
  s>     \t\x00\x00\x01\x00\x02\x01\x92
  s>     Hidentity
  s>     \r\n
  s>     13\r\n
  s>     \x0b\x00\x00\x01\x00\x02\x041
  s>     \xa1FstatusBok
  s>     \r\n
  s>     1e\r\n
  s>     \x16\x00\x00\x01\x00\x02\x041
  s>     \x81T\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00
  s>     \r\n
  s>     8\r\n
  s>     \x00\x00\x00\x01\x00\x02\x002
  s>     \r\n
  s>     0\r\n
  s>     \r\n
  response: [
    b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
  ]
  (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)

#if zstd

  $ hg --verbose debugwireproto --nologhandshake --peer http2 http://$LOCALIP:$HGPORT/ << EOF
  > command heads
  > EOF
  creating http peer for wire protocol version 2
  sending heads command
  s> setsockopt(6, 1, 1) -> None (?)
  s>     POST /api/exp-http-v2-0003/ro/heads HTTP/1.1\r\n
  s>     Accept-Encoding: identity\r\n
  s>     accept: application/mercurial-exp-framing-0006\r\n
  s>     content-type: application/mercurial-exp-framing-0006\r\n
  s>     content-length: 70\r\n
  s>     host: $LOCALIP:$HGPORT\r\n (glob)
  s>     user-agent: Mercurial debugwireproto\r\n
  s>     \r\n
  s>     *\x00\x00\x01\x00\x01\x01\x82\xa1Pcontentencodings\x83Hzstd-8mbDzlibHidentity\x0c\x00\x00\x01\x00\x01\x00\x11\xa1DnameEheads
  s> makefile('rb', None)
  s>     HTTP/1.1 200 OK\r\n
  s>     Server: testing stub value\r\n
  s>     Date: $HTTP_DATE$\r\n
  s>     Content-Type: application/mercurial-exp-framing-0006\r\n
  s>     Transfer-Encoding: chunked\r\n
  s>     \r\n
  s>     11\r\n
  s>     \t\x00\x00\x01\x00\x02\x01\x92
  s>     Hzstd-8mb
  s>     \r\n
  s>     25\r\n
  s>     \x1d\x00\x00\x01\x00\x02\x042
  s>     (\xb5/\xfd\x00X\xa4\x00\x00p\xa1FstatusBok\x81T\x00\x01\x00\tP\x02
  s>     \r\n
  s>     0\r\n
  s>     \r\n
  response: [
    b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
  ]
  (sent 2 HTTP requests and * bytes; received * bytes in responses) (glob)

#endif

  $ cat error.log