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sslutil: more robustly detect protocol support The Python ssl module conditionally sets the TLS 1.1 and TLS 1.2 constants depending on whether HAVE_TLSv1_2 is defined. Yes, these are both tied to the same constant (I would think there would be separate constants for each version). Perhaps support for TLS 1.1 and 1.2 were added at the same time and the assumption is that OpenSSL either has neither or both. I don't know. As part of developing this patch, it was discovered that Apple's /usr/bin/python2.7 does not support TLS 1.1 and 1.2 (only TLS 1.0)! On OS X 10.11, Apple Python has the modern ssl module including SSLContext, but it doesn't appear to negotiate TLS 1.1+ nor does it expose the constants related to TLS 1.1+. Since this code is doing more robust feature detection (and not assuming modern ssl implies TLS 1.1+ support), we now get TLS 1.0 warnings when running on Apple Python. Hence the test changes. I'm not super thrilled about shipping a Mercurial that always whines about TLS 1.0 on OS X. We may want a follow-up patch to suppress this warning.
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 18 Jul 2016 11:27:27 -0700
parents 9654ef41f7cc
children 3fde328d0913
line wrap: on
line source

#require serve ssl

Proper https client requires the built-in ssl from Python 2.6.

Make server certificates:

  $ CERTSDIR="$TESTDIR/sslcerts"
  $ cat "$CERTSDIR/priv.pem" "$CERTSDIR/pub.pem" >> server.pem
  $ PRIV=`pwd`/server.pem
  $ cat "$CERTSDIR/priv.pem" "$CERTSDIR/pub-not-yet.pem" > server-not-yet.pem
  $ cat "$CERTSDIR/priv.pem" "$CERTSDIR/pub-expired.pem" > server-expired.pem

  $ hg init test
  $ cd test
  $ echo foo>foo
  $ mkdir foo.d foo.d/bAr.hg.d foo.d/baR.d.hg
  $ echo foo>foo.d/foo
  $ echo bar>foo.d/bAr.hg.d/BaR
  $ echo bar>foo.d/baR.d.hg/bAR
  $ hg commit -A -m 1
  adding foo
  adding foo.d/bAr.hg.d/BaR
  adding foo.d/baR.d.hg/bAR
  adding foo.d/foo
  $ hg serve -p $HGPORT -d --pid-file=../hg0.pid --certificate=$PRIV
  $ cat ../hg0.pid >> $DAEMON_PIDS

cacert not found

  $ hg in --config web.cacerts=no-such.pem https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: could not find web.cacerts: no-such.pem
  [255]

Test server address cannot be reused

#if windows
  $ hg serve -p $HGPORT --certificate=$PRIV 2>&1
  abort: cannot start server at ':$HGPORT':
  [255]
#else
  $ hg serve -p $HGPORT --certificate=$PRIV 2>&1
  abort: cannot start server at ':$HGPORT': Address already in use
  [255]
#endif
  $ cd ..

Our test cert is not signed by a trusted CA. It should fail to verify if
we are able to load CA certs.

#if sslcontext defaultcacerts no-defaultcacertsloaded
  $ hg clone https://localhost:$HGPORT/ copy-pull
  (an attempt was made to load CA certificates but none were loaded; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error)
  abort: error: *certificate verify failed* (glob)
  [255]
#endif

#if no-sslcontext defaultcacerts
  $ hg clone https://localhost:$HGPORT/ copy-pull
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  (using CA certificates from *; if you see this message, your Mercurial install is not properly configured; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this message) (glob) (?)
  abort: error: *certificate verify failed* (glob)
  [255]
#endif

#if no-sslcontext windows
  $ hg clone https://localhost:$HGPORT/ copy-pull
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info
  (unable to load Windows CA certificates; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this message)
  abort: error: *certificate verify failed* (glob)
  [255]
#endif

#if no-sslcontext osx
  $ hg clone https://localhost:$HGPORT/ copy-pull
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info
  (unable to load CA certificates; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this message)
  abort: localhost certificate error: no certificate received
  (set hostsecurity.localhost:certfingerprints=sha256:20:de:b3:ad:b4:cd:a5:42:f0:74:41:1c:a2:70:1e:da:6e:c0:5c:16:9e:e7:22:0f:f1:b7:e5:6e:e4:92:af:7e config setting or use --insecure to connect insecurely)
  [255]
#endif

#if defaultcacertsloaded
  $ hg clone https://localhost:$HGPORT/ copy-pull
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  (using CA certificates from *; if you see this message, your Mercurial install is not properly configured; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this message) (glob) (?)
  abort: error: *certificate verify failed* (glob)
  [255]
#endif

#if no-defaultcacerts
  $ hg clone https://localhost:$HGPORT/ copy-pull
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  (unable to load * certificates; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this message) (glob) (?)
  abort: localhost certificate error: no certificate received
  (set hostsecurity.localhost:certfingerprints=sha256:20:de:b3:ad:b4:cd:a5:42:f0:74:41:1c:a2:70:1e:da:6e:c0:5c:16:9e:e7:22:0f:f1:b7:e5:6e:e4:92:af:7e config setting or use --insecure to connect insecurely)
  [255]
#endif

Specifying a per-host certificate file that doesn't exist will abort

  $ hg --config hostsecurity.localhost:verifycertsfile=/does/not/exist clone https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: path specified by hostsecurity.localhost:verifycertsfile does not exist: /does/not/exist
  [255]

A malformed per-host certificate file will raise an error

  $ echo baddata > badca.pem
#if sslcontext
  $ hg --config hostsecurity.localhost:verifycertsfile=badca.pem clone https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error loading CA file badca.pem: * (glob)
  (file is empty or malformed?)
  [255]
#else
  $ hg --config hostsecurity.localhost:verifycertsfile=badca.pem clone https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error: * (glob)
  [255]
#endif

A per-host certificate mismatching the server will fail verification

(modern ssl is able to discern whether the loaded cert is a CA cert)
#if sslcontext
  $ hg --config hostsecurity.localhost:verifycertsfile="$CERTSDIR/client-cert.pem" clone https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  (an attempt was made to load CA certificates but none were loaded; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error)
  abort: error: *certificate verify failed* (glob)
  [255]
#else
  $ hg --config hostsecurity.localhost:verifycertsfile="$CERTSDIR/client-cert.pem" clone https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error: *certificate verify failed* (glob)
  [255]
#endif

A per-host certificate matching the server's cert will be accepted

  $ hg --config hostsecurity.localhost:verifycertsfile="$CERTSDIR/pub.pem" clone -U https://localhost:$HGPORT/ perhostgood1
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 4 changes to 4 files

A per-host certificate with multiple certs and one matching will be accepted

  $ cat "$CERTSDIR/client-cert.pem" "$CERTSDIR/pub.pem" > perhost.pem
  $ hg --config hostsecurity.localhost:verifycertsfile=perhost.pem clone -U https://localhost:$HGPORT/ perhostgood2
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 4 changes to 4 files

Defining both per-host certificate and a fingerprint will print a warning

  $ hg --config hostsecurity.localhost:verifycertsfile="$CERTSDIR/pub.pem" --config hostsecurity.localhost:fingerprints=sha1:ecd87cd6b386d04fc1b8b41c9d8f5e168eef1c03 clone -U https://localhost:$HGPORT/ caandfingerwarning
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  (hostsecurity.localhost:verifycertsfile ignored when host fingerprints defined; using host fingerprints for verification)
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 4 changes to 4 files

  $ DISABLECACERTS="--config devel.disableloaddefaultcerts=true"

Inability to verify peer certificate will result in abort

  $ hg clone https://localhost:$HGPORT/ copy-pull $DISABLECACERTS
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: unable to verify security of localhost (no loaded CA certificates); refusing to connect
  (see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error or set hostsecurity.localhost:fingerprints=sha256:20:de:b3:ad:b4:cd:a5:42:f0:74:41:1c:a2:70:1e:da:6e:c0:5c:16:9e:e7:22:0f:f1:b7:e5:6e:e4:92:af:7e to trust this server)
  [255]

  $ hg clone --insecure https://localhost:$HGPORT/ copy-pull
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  warning: connection security to localhost is disabled per current settings; communication is susceptible to eavesdropping and tampering
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 4 changes to 4 files
  updating to branch default
  4 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg verify -R copy-pull
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  4 files, 1 changesets, 4 total revisions
  $ cd test
  $ echo bar > bar
  $ hg commit -A -d '1 0' -m 2
  adding bar
  $ cd ..

pull without cacert

  $ cd copy-pull
  $ echo '[hooks]' >> .hg/hgrc
  $ echo "changegroup = printenv.py changegroup" >> .hg/hgrc
  $ hg pull $DISABLECACERTS
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: unable to verify security of localhost (no loaded CA certificates); refusing to connect
  (see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error or set hostsecurity.localhost:fingerprints=sha256:20:de:b3:ad:b4:cd:a5:42:f0:74:41:1c:a2:70:1e:da:6e:c0:5c:16:9e:e7:22:0f:f1:b7:e5:6e:e4:92:af:7e to trust this server)
  [255]

  $ hg pull --insecure
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  warning: connection security to localhost is disabled per current settings; communication is susceptible to eavesdropping and tampering
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  changegroup hook: HG_NODE=5fed3813f7f5e1824344fdc9cf8f63bb662c292d HG_NODE_LAST=5fed3813f7f5e1824344fdc9cf8f63bb662c292d HG_SOURCE=pull HG_TXNID=TXN:* HG_URL=https://localhost:$HGPORT/ (glob)
  (run 'hg update' to get a working copy)
  $ cd ..

cacert configured in local repo

  $ cp copy-pull/.hg/hgrc copy-pull/.hg/hgrc.bu
  $ echo "[web]" >> copy-pull/.hg/hgrc
  $ echo "cacerts=$CERTSDIR/pub.pem" >> copy-pull/.hg/hgrc
  $ hg -R copy-pull pull --traceback
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  searching for changes
  no changes found
  $ mv copy-pull/.hg/hgrc.bu copy-pull/.hg/hgrc

cacert configured globally, also testing expansion of environment
variables in the filename

  $ echo "[web]" >> $HGRCPATH
  $ echo 'cacerts=$P/pub.pem' >> $HGRCPATH
  $ P="$CERTSDIR" hg -R copy-pull pull
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  searching for changes
  no changes found
  $ P="$CERTSDIR" hg -R copy-pull pull --insecure
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  warning: connection security to localhost is disabled per current settings; communication is susceptible to eavesdropping and tampering
  searching for changes
  no changes found

empty cacert file

  $ touch emptycafile

#if sslcontext
  $ hg --config web.cacerts=emptycafile -R copy-pull pull
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error loading CA file emptycafile: * (glob)
  (file is empty or malformed?)
  [255]
#else
  $ hg --config web.cacerts=emptycafile -R copy-pull pull
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error: * (glob)
  [255]
#endif

cacert mismatch

  $ hg -R copy-pull pull --config web.cacerts="$CERTSDIR/pub.pem" \
  > https://127.0.0.1:$HGPORT/
  pulling from https://127.0.0.1:$HGPORT/ (glob)
  warning: connecting to 127.0.0.1 using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: 127.0.0.1 certificate error: certificate is for localhost (glob)
  (set hostsecurity.127.0.0.1:certfingerprints=sha256:20:de:b3:ad:b4:cd:a5:42:f0:74:41:1c:a2:70:1e:da:6e:c0:5c:16:9e:e7:22:0f:f1:b7:e5:6e:e4:92:af:7e config setting or use --insecure to connect insecurely) (glob)
  [255]
  $ hg -R copy-pull pull --config web.cacerts="$CERTSDIR/pub.pem" \
  > https://127.0.0.1:$HGPORT/ --insecure
  pulling from https://127.0.0.1:$HGPORT/ (glob)
  warning: connecting to 127.0.0.1 using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  warning: connection security to 127.0.0.1 is disabled per current settings; communication is susceptible to eavesdropping and tampering (glob)
  searching for changes
  no changes found
  $ hg -R copy-pull pull --config web.cacerts="$CERTSDIR/pub-other.pem"
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error: *certificate verify failed* (glob)
  [255]
  $ hg -R copy-pull pull --config web.cacerts="$CERTSDIR/pub-other.pem" \
  > --insecure
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  warning: connection security to localhost is disabled per current settings; communication is susceptible to eavesdropping and tampering
  searching for changes
  no changes found

Test server cert which isn't valid yet

  $ hg serve -R test -p $HGPORT1 -d --pid-file=hg1.pid --certificate=server-not-yet.pem
  $ cat hg1.pid >> $DAEMON_PIDS
  $ hg -R copy-pull pull --config web.cacerts="$CERTSDIR/pub-not-yet.pem" \
  > https://localhost:$HGPORT1/
  pulling from https://localhost:$HGPORT1/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error: *certificate verify failed* (glob)
  [255]

Test server cert which no longer is valid

  $ hg serve -R test -p $HGPORT2 -d --pid-file=hg2.pid --certificate=server-expired.pem
  $ cat hg2.pid >> $DAEMON_PIDS
  $ hg -R copy-pull pull --config web.cacerts="$CERTSDIR/pub-expired.pem" \
  > https://localhost:$HGPORT2/
  pulling from https://localhost:$HGPORT2/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error: *certificate verify failed* (glob)
  [255]

Disabling the TLS 1.0 warning works
  $ hg -R copy-pull id https://localhost:$HGPORT/ \
  > --config hostsecurity.localhost:fingerprints=sha1:ecd87cd6b386d04fc1b8b41c9d8f5e168eef1c03 \
  > --config hostsecurity.disabletls10warning=true
  5fed3813f7f5

#if no-sslcontext no-py27+
Setting ciphers doesn't work in Python 2.6
  $ P="$CERTSDIR" hg --config hostsecurity.ciphers=HIGH -R copy-pull id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info
  abort: setting ciphers in [hostsecurity] is not supported by this version of Python
  (remove the config option or run Mercurial with a modern Python version (preferred))
  [255]
#endif

Setting ciphers works in Python 2.7+ but the error message is different on
legacy ssl. We test legacy once and do more feature checking on modern
configs.

#if py27+ no-sslcontext
  $ P="$CERTSDIR" hg --config hostsecurity.ciphers=invalid -R copy-pull id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info
  abort: *No cipher can be selected. (glob)
  [255]

  $ P="$CERTSDIR" hg --config hostsecurity.ciphers=HIGH -R copy-pull id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info
  5fed3813f7f5
#endif

#if sslcontext
Setting ciphers to an invalid value aborts
  $ P="$CERTSDIR" hg --config hostsecurity.ciphers=invalid -R copy-pull id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: could not set ciphers: No cipher can be selected.
  (change cipher string (invalid) in config)
  [255]

  $ P="$CERTSDIR" hg --config hostsecurity.localhost:ciphers=invalid -R copy-pull id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: could not set ciphers: No cipher can be selected.
  (change cipher string (invalid) in config)
  [255]

Changing the cipher string works

  $ P="$CERTSDIR" hg --config hostsecurity.ciphers=HIGH -R copy-pull id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  5fed3813f7f5
#endif

Fingerprints

- works without cacerts (hostkeyfingerprints)
  $ hg -R copy-pull id https://localhost:$HGPORT/ --insecure --config hostfingerprints.localhost=ec:d8:7c:d6:b3:86:d0:4f:c1:b8:b4:1c:9d:8f:5e:16:8e:ef:1c:03
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  5fed3813f7f5

- works without cacerts (hostsecurity)
  $ hg -R copy-pull id https://localhost:$HGPORT/ --config hostsecurity.localhost:fingerprints=sha1:ecd87cd6b386d04fc1b8b41c9d8f5e168eef1c03
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  5fed3813f7f5

  $ hg -R copy-pull id https://localhost:$HGPORT/ --config hostsecurity.localhost:fingerprints=sha256:20:de:b3:ad:b4:cd:a5:42:f0:74:41:1c:a2:70:1e:da:6e:c0:5c:16:9e:e7:22:0f:f1:b7:e5:6e:e4:92:af:7e
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  5fed3813f7f5

- multiple fingerprints specified and first matches
  $ hg --config 'hostfingerprints.localhost=ecd87cd6b386d04fc1b8b41c9d8f5e168eef1c03, deadbeefdeadbeefdeadbeefdeadbeefdeadbeef' -R copy-pull id https://localhost:$HGPORT/ --insecure
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  5fed3813f7f5

  $ hg --config 'hostsecurity.localhost:fingerprints=sha1:ecd87cd6b386d04fc1b8b41c9d8f5e168eef1c03, sha1:deadbeefdeadbeefdeadbeefdeadbeefdeadbeef' -R copy-pull id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  5fed3813f7f5

- multiple fingerprints specified and last matches
  $ hg --config 'hostfingerprints.localhost=deadbeefdeadbeefdeadbeefdeadbeefdeadbeef, ecd87cd6b386d04fc1b8b41c9d8f5e168eef1c03' -R copy-pull id https://localhost:$HGPORT/ --insecure
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  5fed3813f7f5

  $ hg --config 'hostsecurity.localhost:fingerprints=sha1:deadbeefdeadbeefdeadbeefdeadbeefdeadbeef, sha1:ecd87cd6b386d04fc1b8b41c9d8f5e168eef1c03' -R copy-pull id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  5fed3813f7f5

- multiple fingerprints specified and none match

  $ hg --config 'hostfingerprints.localhost=deadbeefdeadbeefdeadbeefdeadbeefdeadbeef, aeadbeefdeadbeefdeadbeefdeadbeefdeadbeef' -R copy-pull id https://localhost:$HGPORT/ --insecure
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: certificate for localhost has unexpected fingerprint ec:d8:7c:d6:b3:86:d0:4f:c1:b8:b4:1c:9d:8f:5e:16:8e:ef:1c:03
  (check hostfingerprint configuration)
  [255]

  $ hg --config 'hostsecurity.localhost:fingerprints=sha1:deadbeefdeadbeefdeadbeefdeadbeefdeadbeef, sha1:aeadbeefdeadbeefdeadbeefdeadbeefdeadbeef' -R copy-pull id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: certificate for localhost has unexpected fingerprint sha1:ec:d8:7c:d6:b3:86:d0:4f:c1:b8:b4:1c:9d:8f:5e:16:8e:ef:1c:03
  (check hostsecurity configuration)
  [255]

- fails when cert doesn't match hostname (port is ignored)
  $ hg -R copy-pull id https://localhost:$HGPORT1/ --config hostfingerprints.localhost=ecd87cd6b386d04fc1b8b41c9d8f5e168eef1c03
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: certificate for localhost has unexpected fingerprint f4:2f:5a:0c:3e:52:5b:db:e7:24:a8:32:1d:18:97:6d:69:b5:87:84
  (check hostfingerprint configuration)
  [255]


- ignores that certificate doesn't match hostname
  $ hg -R copy-pull id https://127.0.0.1:$HGPORT/ --config hostfingerprints.127.0.0.1=ecd87cd6b386d04fc1b8b41c9d8f5e168eef1c03
  warning: connecting to 127.0.0.1 using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  5fed3813f7f5

Ports used by next test. Kill servers.

  $ killdaemons.py hg0.pid
  $ killdaemons.py hg1.pid
  $ killdaemons.py hg2.pid

#if sslcontext tls1.2
Start servers running supported TLS versions

  $ cd test
  $ hg serve -p $HGPORT -d --pid-file=../hg0.pid --certificate=$PRIV \
  > --config devel.serverexactprotocol=tls1.0
  $ cat ../hg0.pid >> $DAEMON_PIDS
  $ hg serve -p $HGPORT1 -d --pid-file=../hg1.pid --certificate=$PRIV \
  > --config devel.serverexactprotocol=tls1.1
  $ cat ../hg1.pid >> $DAEMON_PIDS
  $ hg serve -p $HGPORT2 -d --pid-file=../hg2.pid --certificate=$PRIV \
  > --config devel.serverexactprotocol=tls1.2
  $ cat ../hg2.pid >> $DAEMON_PIDS
  $ cd ..

Clients talking same TLS versions work

  $ P="$CERTSDIR" hg --config hostsecurity.minimumprotocol=tls1.0 id https://localhost:$HGPORT/
  5fed3813f7f5
  $ P="$CERTSDIR" hg --config hostsecurity.minimumprotocol=tls1.1 id https://localhost:$HGPORT1/
  5fed3813f7f5
  $ P="$CERTSDIR" hg --config hostsecurity.minimumprotocol=tls1.2 id https://localhost:$HGPORT2/
  5fed3813f7f5

Clients requiring newer TLS version than what server supports fail

  $ P="$CERTSDIR" hg id https://localhost:$HGPORT/
  (could not negotiate a common protocol; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error)
  abort: error: *unsupported protocol* (glob)
  [255]

  $ P="$CERTSDIR" hg --config hostsecurity.minimumprotocol=tls1.1 id https://localhost:$HGPORT/
  (could not negotiate a common protocol; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error)
  abort: error: *unsupported protocol* (glob)
  [255]
  $ P="$CERTSDIR" hg --config hostsecurity.minimumprotocol=tls1.2 id https://localhost:$HGPORT/
  (could not negotiate a common protocol; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error)
  abort: error: *unsupported protocol* (glob)
  [255]
  $ P="$CERTSDIR" hg --config hostsecurity.minimumprotocol=tls1.2 id https://localhost:$HGPORT1/
  (could not negotiate a common protocol; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error)
  abort: error: *unsupported protocol* (glob)
  [255]

The per-host config option overrides the default

  $ P="$CERTSDIR" hg id https://localhost:$HGPORT/ \
  > --config hostsecurity.minimumprotocol=tls1.2 \
  > --config hostsecurity.localhost:minimumprotocol=tls1.0
  5fed3813f7f5

The per-host config option by itself works

  $ P="$CERTSDIR" hg id https://localhost:$HGPORT/ \
  > --config hostsecurity.localhost:minimumprotocol=tls1.2
  (could not negotiate a common protocol; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error)
  abort: error: *unsupported protocol* (glob)
  [255]

  $ killdaemons.py hg0.pid
  $ killdaemons.py hg1.pid
  $ killdaemons.py hg2.pid
#endif

Prepare for connecting through proxy

  $ hg serve -R test -p $HGPORT -d --pid-file=hg0.pid --certificate=$PRIV
  $ cat hg0.pid >> $DAEMON_PIDS
  $ hg serve -R test -p $HGPORT2 -d --pid-file=hg2.pid --certificate=server-expired.pem
  $ cat hg2.pid >> $DAEMON_PIDS
tinyproxy.py doesn't fully detach, so killing it may result in extra output
from the shell. So don't kill it.
  $ tinyproxy.py $HGPORT1 localhost >proxy.log </dev/null 2>&1 &
  $ while [ ! -f proxy.pid ]; do sleep 0; done
  $ cat proxy.pid >> $DAEMON_PIDS

  $ echo "[http_proxy]" >> copy-pull/.hg/hgrc
  $ echo "always=True" >> copy-pull/.hg/hgrc
  $ echo "[hostfingerprints]" >> copy-pull/.hg/hgrc
  $ echo "localhost =" >> copy-pull/.hg/hgrc

Test unvalidated https through proxy

  $ http_proxy=http://localhost:$HGPORT1/ hg -R copy-pull pull --insecure --traceback
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  warning: connection security to localhost is disabled per current settings; communication is susceptible to eavesdropping and tampering
  searching for changes
  no changes found

Test https with cacert and fingerprint through proxy

  $ http_proxy=http://localhost:$HGPORT1/ hg -R copy-pull pull \
  > --config web.cacerts="$CERTSDIR/pub.pem"
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  searching for changes
  no changes found
  $ http_proxy=http://localhost:$HGPORT1/ hg -R copy-pull pull https://127.0.0.1:$HGPORT/ --config hostfingerprints.127.0.0.1=ecd87cd6b386d04fc1b8b41c9d8f5e168eef1c03
  pulling from https://127.0.0.1:$HGPORT/ (glob)
  warning: connecting to 127.0.0.1 using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  searching for changes
  no changes found

Test https with cert problems through proxy

  $ http_proxy=http://localhost:$HGPORT1/ hg -R copy-pull pull \
  > --config web.cacerts="$CERTSDIR/pub-other.pem"
  pulling from https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error: *certificate verify failed* (glob)
  [255]
  $ http_proxy=http://localhost:$HGPORT1/ hg -R copy-pull pull \
  > --config web.cacerts="$CERTSDIR/pub-expired.pem" https://localhost:$HGPORT2/
  pulling from https://localhost:$HGPORT2/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error: *certificate verify failed* (glob)
  [255]


  $ killdaemons.py hg0.pid

#if sslcontext

Start hgweb that requires client certificates:

  $ cd test
  $ hg serve -p $HGPORT -d --pid-file=../hg0.pid --certificate=$PRIV \
  > --config devel.servercafile=$PRIV --config devel.serverrequirecert=true
  $ cat ../hg0.pid >> $DAEMON_PIDS
  $ cd ..

without client certificate:

  $ P="$CERTSDIR" hg id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error: *handshake failure* (glob)
  [255]

with client certificate:

  $ cat << EOT >> $HGRCPATH
  > [auth]
  > l.prefix = localhost
  > l.cert = $CERTSDIR/client-cert.pem
  > l.key = $CERTSDIR/client-key.pem
  > EOT

  $ P="$CERTSDIR" hg id https://localhost:$HGPORT/ \
  > --config auth.l.key="$CERTSDIR/client-key-decrypted.pem"
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  5fed3813f7f5

  $ printf '1234\n' | env P="$CERTSDIR" hg id https://localhost:$HGPORT/ \
  > --config ui.interactive=True --config ui.nontty=True
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  passphrase for */client-key.pem: 5fed3813f7f5 (glob)

  $ env P="$CERTSDIR" hg id https://localhost:$HGPORT/
  warning: connecting to localhost using legacy security technology (TLS 1.0); see https://mercurial-scm.org/wiki/SecureConnections for more info (?)
  abort: error: * (glob)
  [255]

#endif