upstream/mercurial-mirror Files · tests/test-clonebundles.t

sslutil: synchronize hostname matching logic with CPython...

sslutil: synchronize hostname matching logic with CPython sslutil contains its own hostname matching logic. CPython has code for the same intent. However, it is only available to Python 2.7.9+ (or distributions that have backported 2.7.9's ssl module improvements). This patch effectively imports CPython's hostname matching code from its ssl.py into sslutil.py. The hostname matching code itself is pretty similar. However, the DNS name matching code is much more robust and spec conformant. As the test changes show, this changes some behavior around wildcard handling and IDNA matching. The new behavior allows wildcards in the middle of words (e.g. 'f*.com' matches 'foo.com') This is spec compliant according to RFC 6125 Section 6.5.3 item 3. There is one test where the matcher is more strict. Before, '*.a.com' matched '.a.com'. Now it doesn't match. Strictly speaking this is a security vulnerability.

Mike Hommey - - Load All Authors

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      Set up a server

        $ cat >> $HGRCPATH << EOF

        > [format]

        > usegeneraldelta=yes

        > EOF

        $ hg init server

        $ cd server

        $ cat >> .hg/hgrc << EOF

        > [extensions]

        > clonebundles =

        > EOF

        $ touch foo

        $ hg -q commit -A -m 'add foo'

        $ touch bar

        $ hg -q commit -A -m 'add bar'

        $ hg serve -d -p $HGPORT --pid-file hg.pid --accesslog access.log

        $ cat hg.pid >> $DAEMON_PIDS

        $ cd ..

      Missing manifest should not result in server lookup

        $ hg --verbose clone -U http://localhost:$HGPORT no-manifest

        requesting all changes

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        $ cat server/access.log

        * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)

        * - - [*] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D (glob)

        * - - [*] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=aaff8d2ffbbf07a46dd1f05d8ae7877e3f56e2a2&listkeys=phases%2Cbookmarks (glob)

      Empty manifest file results in retrieval

      (the extension only checks if the manifest file exists)

        $ touch server/.hg/clonebundles.manifest

        $ hg --verbose clone -U http://localhost:$HGPORT empty-manifest

        no clone bundles available on remote; falling back to regular clone

        requesting all changes

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

      Manifest file with invalid URL aborts

        $ echo 'http://does.not.exist/bundle.hg' > server/.hg/clonebundles.manifest

        $ hg clone http://localhost:$HGPORT 404-url

        applying clone bundle from http://does.not.exist/bundle.hg

        error fetching bundle: (.* not known|getaddrinfo failed|No address associated with hostname) (re)

        abort: error applying bundle

        (if this error persists, consider contacting the server operator or disable clone bundles via "--config ui.clonebundles=false")

        [255]

      Server is not running aborts

        $ echo "http://localhost:$HGPORT1/bundle.hg" > server/.hg/clonebundles.manifest

        $ hg clone http://localhost:$HGPORT server-not-runner

        applying clone bundle from http://localhost:$HGPORT1/bundle.hg

        error fetching bundle: * refused* (glob)

        abort: error applying bundle

        (if this error persists, consider contacting the server operator or disable clone bundles via "--config ui.clonebundles=false")

        [255]

      Server returns 404

        $ python $TESTDIR/dumbhttp.py -p $HGPORT1 --pid http.pid

        $ cat http.pid >> $DAEMON_PIDS

        $ hg clone http://localhost:$HGPORT running-404

        applying clone bundle from http://localhost:$HGPORT1/bundle.hg

        HTTP error fetching bundle: HTTP Error 404: File not found

        abort: error applying bundle

        (if this error persists, consider contacting the server operator or disable clone bundles via "--config ui.clonebundles=false")

        [255]

      We can override failure to fall back to regular clone

        $ hg --config ui.clonebundlefallback=true clone -U http://localhost:$HGPORT 404-fallback

        applying clone bundle from http://localhost:$HGPORT1/bundle.hg

        HTTP error fetching bundle: HTTP Error 404: File not found

        falling back to normal clone

        requesting all changes

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

      Bundle with partial content works

        $ hg -R server bundle --type gzip-v1 --base null -r 53245c60e682 partial.hg

        1 changesets found

      We verify exact bundle content as an extra check against accidental future

      changes. If this output changes, we could break old clients.

        $ f --size --hexdump partial.hg

        partial.hg: size=207

        0000: 48 47 31 30 47 5a 78 9c 63 60 60 98 17 ac 12 93 |HG10GZx.c``.....|

        0010: f0 ac a9 23 45 70 cb bf 0d 5f 59 4e 4a 7f 79 21 |...#Ep..._YNJ.y!|

        0020: 9b cc 40 24 20 a0 d7 ce 2c d1 38 25 cd 24 25 d5 |..@$ ...,.8%.$%.|

        0030: d8 c2 22 cd 38 d9 24 cd 22 d5 c8 22 cd 24 cd 32 |..".8.$."..".$.2|

        0040: d1 c2 d0 c4 c8 d2 32 d1 38 39 29 c9 34 cd d4 80 |......2.89).4...|

        0050: ab 24 b5 b8 84 cb 40 c1 80 2b 2d 3f 9f 8b 2b 31 |.$....@..+-?..+1|

        0060: 25 45 01 c8 80 9a d2 9b 65 fb e5 9e 45 bf 8d 7f |%E......e...E...|

        0070: 9f c6 97 9f 2b 44 34 67 d9 ec 8e 0f a0 92 0b 75 |....+D4g.......u|

        0080: 41 d6 24 59 18 a4 a4 9a a6 18 1a 5b 98 9b 5a 98 |A.$Y.......[..Z.|

        0090: 9a 18 26 9b a6 19 98 1a 99 99 26 a6 18 9a 98 24 |..&.......&....$|

        00a0: 26 59 a6 25 5a 98 a5 18 a6 24 71 41 35 b1 43 dc |&Y.%Z....$qA5.C.|

        00b0: 16 b2 83 f7 e9 45 8b d2 56 c7 a3 1f 82 52 d7 8a |.....E..V....R..|

        00c0: 78 ed fc d5 76 f1 36 35 dc 05 00 36 ed 5e c7    |x...v.65...6.^.|

        $ echo "http://localhost:$HGPORT1/partial.hg" > server/.hg/clonebundles.manifest

        $ hg clone -U http://localhost:$HGPORT partial-bundle

        applying clone bundle from http://localhost:$HGPORT1/partial.hg

        adding changesets

        adding manifests

        adding file changes

        added 1 changesets with 1 changes to 1 files

        finished applying clone bundle

        searching for changes

        adding changesets

        adding manifests

        adding file changes

        added 1 changesets with 1 changes to 1 files

      Incremental pull doesn't fetch bundle

        $ hg clone -r 53245c60e682 -U http://localhost:$HGPORT partial-clone

        adding changesets

        adding manifests

        adding file changes

        added 1 changesets with 1 changes to 1 files

        $ cd partial-clone

        $ hg pull

        pulling from http://localhost:$HGPORT/

        searching for changes

        adding changesets

        adding manifests

        adding file changes

        added 1 changesets with 1 changes to 1 files

        (run 'hg update' to get a working copy)

        $ cd ..

      Bundle with full content works

        $ hg -R server bundle --type gzip-v2 --base null -r tip full.hg

        2 changesets found

      Again, we perform an extra check against bundle content changes. If this content

      changes, clone bundles produced by new Mercurial versions may not be readable

      by old clients.

        $ f --size --hexdump full.hg

        full.hg: size=406

        0000: 48 47 32 30 00 00 00 0e 43 6f 6d 70 72 65 73 73 |HG20....Compress|

        0010: 69 6f 6e 3d 47 5a 78 9c 63 60 60 90 e5 76 f6 70 |ion=GZx.c``..v.p|

        0020: f4 73 77 75 0f f2 0f 0d 60 00 02 46 06 76 a6 b2 |.swu....`..F.v..|

        0030: d4 a2 e2 cc fc 3c 03 23 06 06 e6 65 40 b1 4d c1 |.....<.#...e@.M.|

        0040: 2a 31 09 cf 9a 3a 52 04 b7 fc db f0 95 e5 a4 f4 |*1...:R.........|

        0050: 97 17 b2 c9 0c 14 00 02 e6 d9 99 25 1a a7 a4 99 |...........%....|

        0060: a4 a4 1a 5b 58 a4 19 27 9b a4 59 a4 1a 59 a4 99 |...[X..'..Y..Y..|

        0070: a4 59 26 5a 18 9a 18 59 5a 26 1a 27 27 25 99 a6 |.Y&Z...YZ&.''%..|

        0080: 99 1a 70 95 a4 16 97 70 19 28 18 70 a5 e5 e7 73 |..p....p.(.p...s|

        0090: 71 25 a6 a4 28 00 19 40 13 0e ac fa df ab ff 7b |q%..(..@.......{|

        00a0: 3f fb 92 dc 8b 1f 62 bb 9e b7 d7 d9 87 3d 5a 44 |?.....b......=ZD|

        00b0: ac 2f b0 a9 c3 66 1e 54 b9 26 08 a7 1a 1b 1a a7 |./...f.T.&......|

        00c0: 25 1b 9a 1b 99 19 9a 5a 18 9b a6 18 19 00 dd 67 |%......Z.......g|

        00d0: 61 61 98 06 f4 80 49 4a 8a 65 52 92 41 9a 81 81 |aa....IJ.eR.A...|

        00e0: a5 11 17 50 31 30 58 19 cc 80 98 25 29 b1 08 c4 |...P10X....%)...|

        00f0: 37 07 79 19 88 d9 41 ee 07 8a 41 cd 5d 98 65 fb |7.y...A...A.].e.|

        0100: e5 9e 45 bf 8d 7f 9f c6 97 9f 2b 44 34 67 d9 ec |..E.......+D4g..|

        0110: 8e 0f a0 61 a8 eb 82 82 2e c9 c2 20 25 d5 34 c5 |...a....... %.4.|

        0120: d0 d8 c2 dc d4 c2 d4 c4 30 d9 34 cd c0 d4 c8 cc |........0.4.....|

        0130: 34 31 c5 d0 c4 24 31 c9 32 2d d1 c2 2c c5 30 25 |41...$1.2-..,.0%|

        0140: 09 e4 ee 85 8f 85 ff 88 ab 89 36 c7 2a c4 47 34 |..........6.*.G4|

        0150: fe f8 ec 7b 73 37 3f c3 24 62 1d 8d 4d 1d 9e 40 |...{s7?.$b..M..@|

        0160: 06 3b 10 14 36 a4 38 10 04 d8 21 01 9a b1 83 f7 |.;..6.8...!.....|

        0170: e9 45 8b d2 56 c7 a3 1f 82 52 d7 8a 78 ed fc d5 |.E..V....R..x...|

        0180: 76 f1 36 25 81 89 c7 ad ec 90 34 48 75 2b 89 49 |v.6%......4Hu+.I|

        0190: bf 00 d6 97 f0 8d                               |......|

        $ echo "http://localhost:$HGPORT1/full.hg" > server/.hg/clonebundles.manifest

        $ hg clone -U http://localhost:$HGPORT full-bundle

        applying clone bundle from http://localhost:$HGPORT1/full.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

      Feature works over SSH

        $ hg clone -U -e "python \"$TESTDIR/dummyssh\"" ssh://user@dummy/server ssh-full-clone

        applying clone bundle from http://localhost:$HGPORT1/full.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

      Entry with unknown BUNDLESPEC is filtered and not used

        $ cat > server/.hg/clonebundles.manifest << EOF

        > http://bad.entry1 BUNDLESPEC=UNKNOWN

        > http://bad.entry2 BUNDLESPEC=xz-v1

        > http://bad.entry3 BUNDLESPEC=none-v100

        > http://localhost:$HGPORT1/full.hg BUNDLESPEC=gzip-v2

        > EOF

        $ hg clone -U http://localhost:$HGPORT filter-unknown-type

        applying clone bundle from http://localhost:$HGPORT1/full.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

      Automatic fallback when all entries are filtered

        $ cat > server/.hg/clonebundles.manifest << EOF

        > http://bad.entry BUNDLESPEC=UNKNOWN

        > EOF

        $ hg clone -U http://localhost:$HGPORT filter-all

        no compatible clone bundles available on server; falling back to regular clone

        (you may want to report this to the server operator)

        requesting all changes

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

      URLs requiring SNI are filtered in Python <2.7.9

        $ cp full.hg sni.hg

        $ cat > server/.hg/clonebundles.manifest << EOF

        > http://localhost:$HGPORT1/sni.hg REQUIRESNI=true

        > http://localhost:$HGPORT1/full.hg

        > EOF

      #if sslcontext

      Python 2.7.9+ support SNI

        $ hg clone -U http://localhost:$HGPORT sni-supported

        applying clone bundle from http://localhost:$HGPORT1/sni.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

      #else

      Python <2.7.9 will filter SNI URLs

        $ hg clone -U http://localhost:$HGPORT sni-unsupported

        applying clone bundle from http://localhost:$HGPORT1/full.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

      #endif

      Stream clone bundles are supported

        $ hg -R server debugcreatestreamclonebundle packed.hg

        writing 613 bytes for 4 files

        bundle requirements: generaldelta, revlogv1

      No bundle spec should work

        $ cat > server/.hg/clonebundles.manifest << EOF

        > http://localhost:$HGPORT1/packed.hg

        > EOF

        $ hg clone -U http://localhost:$HGPORT stream-clone-no-spec

        applying clone bundle from http://localhost:$HGPORT1/packed.hg

        4 files to transfer, 613 bytes of data

        transferred 613 bytes in *.* seconds (*) (glob)

        finished applying clone bundle

        searching for changes

        no changes found

      Bundle spec without parameters should work

        $ cat > server/.hg/clonebundles.manifest << EOF

        > http://localhost:$HGPORT1/packed.hg BUNDLESPEC=none-packed1

        > EOF

        $ hg clone -U http://localhost:$HGPORT stream-clone-vanilla-spec

        applying clone bundle from http://localhost:$HGPORT1/packed.hg

        4 files to transfer, 613 bytes of data

        transferred 613 bytes in *.* seconds (*) (glob)

        finished applying clone bundle

        searching for changes

        no changes found

      Bundle spec with format requirements should work

        $ cat > server/.hg/clonebundles.manifest << EOF

        > http://localhost:$HGPORT1/packed.hg BUNDLESPEC=none-packed1;requirements%3Drevlogv1

        > EOF

        $ hg clone -U http://localhost:$HGPORT stream-clone-supported-requirements

        applying clone bundle from http://localhost:$HGPORT1/packed.hg

        4 files to transfer, 613 bytes of data

        transferred 613 bytes in *.* seconds (*) (glob)

        finished applying clone bundle

        searching for changes

        no changes found

      Stream bundle spec with unknown requirements should be filtered out

        $ cat > server/.hg/clonebundles.manifest << EOF

        > http://localhost:$HGPORT1/packed.hg BUNDLESPEC=none-packed1;requirements%3Drevlogv42

        > EOF

        $ hg clone -U http://localhost:$HGPORT stream-clone-unsupported-requirements

        no compatible clone bundles available on server; falling back to regular clone

        (you may want to report this to the server operator)

        requesting all changes

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

      Set up manifest for testing preferences

      (Remember, the TYPE does not have to match reality - the URL is

      important)

        $ cp full.hg gz-a.hg

        $ cp full.hg gz-b.hg

        $ cp full.hg bz2-a.hg

        $ cp full.hg bz2-b.hg

        $ cat > server/.hg/clonebundles.manifest << EOF

        > http://localhost:$HGPORT1/gz-a.hg BUNDLESPEC=gzip-v2 extra=a

        > http://localhost:$HGPORT1/bz2-a.hg BUNDLESPEC=bzip2-v2 extra=a

        > http://localhost:$HGPORT1/gz-b.hg BUNDLESPEC=gzip-v2 extra=b

        > http://localhost:$HGPORT1/bz2-b.hg BUNDLESPEC=bzip2-v2 extra=b

        > EOF

      Preferring an undefined attribute will take first entry

        $ hg --config ui.clonebundleprefers=foo=bar clone -U http://localhost:$HGPORT prefer-foo

        applying clone bundle from http://localhost:$HGPORT1/gz-a.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

      Preferring bz2 type will download first entry of that type

        $ hg --config ui.clonebundleprefers=COMPRESSION=bzip2 clone -U http://localhost:$HGPORT prefer-bz

        applying clone bundle from http://localhost:$HGPORT1/bz2-a.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

      Preferring multiple values of an option works

        $ hg --config ui.clonebundleprefers=COMPRESSION=unknown,COMPRESSION=bzip2 clone -U http://localhost:$HGPORT prefer-multiple-bz

        applying clone bundle from http://localhost:$HGPORT1/bz2-a.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

      Sorting multiple values should get us back to original first entry

        $ hg --config ui.clonebundleprefers=BUNDLESPEC=unknown,BUNDLESPEC=gzip-v2,BUNDLESPEC=bzip2-v2 clone -U http://localhost:$HGPORT prefer-multiple-gz

        applying clone bundle from http://localhost:$HGPORT1/gz-a.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

      Preferring multiple attributes has correct order

        $ hg --config ui.clonebundleprefers=extra=b,BUNDLESPEC=bzip2-v2 clone -U http://localhost:$HGPORT prefer-separate-attributes

        applying clone bundle from http://localhost:$HGPORT1/bz2-b.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

      Test where attribute is missing from some entries

        $ cat > server/.hg/clonebundles.manifest << EOF

        > http://localhost:$HGPORT1/gz-a.hg BUNDLESPEC=gzip-v2

        > http://localhost:$HGPORT1/bz2-a.hg BUNDLESPEC=bzip2-v2

        > http://localhost:$HGPORT1/gz-b.hg BUNDLESPEC=gzip-v2 extra=b

        > http://localhost:$HGPORT1/bz2-b.hg BUNDLESPEC=bzip2-v2 extra=b

        > EOF

        $ hg --config ui.clonebundleprefers=extra=b clone -U http://localhost:$HGPORT prefer-partially-defined-attribute

        applying clone bundle from http://localhost:$HGPORT1/gz-b.hg

        adding changesets

        adding manifests

        adding file changes

        added 2 changesets with 2 changes to 2 files

        finished applying clone bundle

        searching for changes

        no changes found

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				Set up a server

				$ cat >> $HGRCPATH << EOF
				> [format]
				> usegeneraldelta=yes
				> EOF
				$ hg init server
				$ cd server
				$ cat >> .hg/hgrc << EOF
				> [extensions]
				> clonebundles =
				> EOF

				$ touch foo
				$ hg -q commit -A -m 'add foo'
				$ touch bar
				$ hg -q commit -A -m 'add bar'

				$ hg serve -d -p $HGPORT --pid-file hg.pid --accesslog access.log
				$ cat hg.pid >> $DAEMON_PIDS
				$ cd ..

				Missing manifest should not result in server lookup

				$ hg --verbose clone -U http://localhost:$HGPORT no-manifest
				requesting all changes
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files

				$ cat server/access.log
				* - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
				* - - [*] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D (glob)
				* - - [*] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=aaff8d2ffbbf07a46dd1f05d8ae7877e3f56e2a2&listkeys=phases%2Cbookmarks (glob)

				Empty manifest file results in retrieval
				(the extension only checks if the manifest file exists)

				$ touch server/.hg/clonebundles.manifest
				$ hg --verbose clone -U http://localhost:$HGPORT empty-manifest
				no clone bundles available on remote; falling back to regular clone
				requesting all changes
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files

				Manifest file with invalid URL aborts

				$ echo 'http://does.not.exist/bundle.hg' > server/.hg/clonebundles.manifest
				$ hg clone http://localhost:$HGPORT 404-url
				applying clone bundle from http://does.not.exist/bundle.hg
				error fetching bundle: (.* not known\|getaddrinfo failed\|No address associated with hostname) (re)
				abort: error applying bundle
				(if this error persists, consider contacting the server operator or disable clone bundles via "--config ui.clonebundles=false")
				[255]

				Server is not running aborts

				$ echo "http://localhost:$HGPORT1/bundle.hg" > server/.hg/clonebundles.manifest
				$ hg clone http://localhost:$HGPORT server-not-runner
				applying clone bundle from http://localhost:$HGPORT1/bundle.hg
				error fetching bundle: * refused* (glob)
				abort: error applying bundle
				(if this error persists, consider contacting the server operator or disable clone bundles via "--config ui.clonebundles=false")
				[255]

				Server returns 404

				$ python $TESTDIR/dumbhttp.py -p $HGPORT1 --pid http.pid
				$ cat http.pid >> $DAEMON_PIDS
				$ hg clone http://localhost:$HGPORT running-404
				applying clone bundle from http://localhost:$HGPORT1/bundle.hg
				HTTP error fetching bundle: HTTP Error 404: File not found
				abort: error applying bundle
				(if this error persists, consider contacting the server operator or disable clone bundles via "--config ui.clonebundles=false")
				[255]

				We can override failure to fall back to regular clone

				$ hg --config ui.clonebundlefallback=true clone -U http://localhost:$HGPORT 404-fallback
				applying clone bundle from http://localhost:$HGPORT1/bundle.hg
				HTTP error fetching bundle: HTTP Error 404: File not found
				falling back to normal clone
				requesting all changes
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files

				Bundle with partial content works

				$ hg -R server bundle --type gzip-v1 --base null -r 53245c60e682 partial.hg
				1 changesets found

				We verify exact bundle content as an extra check against accidental future
				changes. If this output changes, we could break old clients.

				$ f --size --hexdump partial.hg
				partial.hg: size=207
				0000: 48 47 31 30 47 5a 78 9c 63 60 60 98 17 ac 12 93 \|HG10GZx.c``.....\|
				0010: f0 ac a9 23 45 70 cb bf 0d 5f 59 4e 4a 7f 79 21 \|...#Ep..._YNJ.y!\|
				0020: 9b cc 40 24 20 a0 d7 ce 2c d1 38 25 cd 24 25 d5 \|..@$ ...,.8%.$%.\|
				0030: d8 c2 22 cd 38 d9 24 cd 22 d5 c8 22 cd 24 cd 32 \|..".8.$."..".$.2\|
				0040: d1 c2 d0 c4 c8 d2 32 d1 38 39 29 c9 34 cd d4 80 \|......2.89).4...\|
				0050: ab 24 b5 b8 84 cb 40 c1 80 2b 2d 3f 9f 8b 2b 31 \|.$....@..+-?..+1\|
				0060: 25 45 01 c8 80 9a d2 9b 65 fb e5 9e 45 bf 8d 7f \|%E......e...E...\|
				0070: 9f c6 97 9f 2b 44 34 67 d9 ec 8e 0f a0 92 0b 75 \|....+D4g.......u\|
				0080: 41 d6 24 59 18 a4 a4 9a a6 18 1a 5b 98 9b 5a 98 \|A.$Y.......[..Z.\|
				0090: 9a 18 26 9b a6 19 98 1a 99 99 26 a6 18 9a 98 24 \|..&.......&....$\|
				00a0: 26 59 a6 25 5a 98 a5 18 a6 24 71 41 35 b1 43 dc \|&Y.%Z....$qA5.C.\|
				00b0: 16 b2 83 f7 e9 45 8b d2 56 c7 a3 1f 82 52 d7 8a \|.....E..V....R..\|
				00c0: 78 ed fc d5 76 f1 36 35 dc 05 00 36 ed 5e c7 \|x...v.65...6.^.\|

				$ echo "http://localhost:$HGPORT1/partial.hg" > server/.hg/clonebundles.manifest
				$ hg clone -U http://localhost:$HGPORT partial-bundle
				applying clone bundle from http://localhost:$HGPORT1/partial.hg
				adding changesets
				adding manifests
				adding file changes
				added 1 changesets with 1 changes to 1 files
				finished applying clone bundle
				searching for changes
				adding changesets
				adding manifests
				adding file changes
				added 1 changesets with 1 changes to 1 files

				Incremental pull doesn't fetch bundle

				$ hg clone -r 53245c60e682 -U http://localhost:$HGPORT partial-clone
				adding changesets
				adding manifests
				adding file changes
				added 1 changesets with 1 changes to 1 files

				$ cd partial-clone
				$ hg pull
				pulling from http://localhost:$HGPORT/
				searching for changes
				adding changesets
				adding manifests
				adding file changes
				added 1 changesets with 1 changes to 1 files
				(run 'hg update' to get a working copy)
				$ cd ..

				Bundle with full content works

				$ hg -R server bundle --type gzip-v2 --base null -r tip full.hg
				2 changesets found

				Again, we perform an extra check against bundle content changes. If this content
				changes, clone bundles produced by new Mercurial versions may not be readable
				by old clients.

				$ f --size --hexdump full.hg
				full.hg: size=406
				0000: 48 47 32 30 00 00 00 0e 43 6f 6d 70 72 65 73 73 \|HG20....Compress\|
				0010: 69 6f 6e 3d 47 5a 78 9c 63 60 60 90 e5 76 f6 70 \|ion=GZx.c``..v.p\|
				0020: f4 73 77 75 0f f2 0f 0d 60 00 02 46 06 76 a6 b2 \|.swu....`..F.v..\|
				0030: d4 a2 e2 cc fc 3c 03 23 06 06 e6 65 40 b1 4d c1 \|.....<.#...e@.M.\|
				0040: 2a 31 09 cf 9a 3a 52 04 b7 fc db f0 95 e5 a4 f4 \|*1...:R.........\|
				0050: 97 17 b2 c9 0c 14 00 02 e6 d9 99 25 1a a7 a4 99 \|...........%....\|
				0060: a4 a4 1a 5b 58 a4 19 27 9b a4 59 a4 1a 59 a4 99 \|...[X..'..Y..Y..\|
				0070: a4 59 26 5a 18 9a 18 59 5a 26 1a 27 27 25 99 a6 \|.Y&Z...YZ&.''%..\|
				0080: 99 1a 70 95 a4 16 97 70 19 28 18 70 a5 e5 e7 73 \|..p....p.(.p...s\|
				0090: 71 25 a6 a4 28 00 19 40 13 0e ac fa df ab ff 7b \|q%..(..@.......{\|
				00a0: 3f fb 92 dc 8b 1f 62 bb 9e b7 d7 d9 87 3d 5a 44 \|?.....b......=ZD\|
				00b0: ac 2f b0 a9 c3 66 1e 54 b9 26 08 a7 1a 1b 1a a7 \|./...f.T.&......\|
				00c0: 25 1b 9a 1b 99 19 9a 5a 18 9b a6 18 19 00 dd 67 \|%......Z.......g\|
				00d0: 61 61 98 06 f4 80 49 4a 8a 65 52 92 41 9a 81 81 \|aa....IJ.eR.A...\|
				00e0: a5 11 17 50 31 30 58 19 cc 80 98 25 29 b1 08 c4 \|...P10X....%)...\|
				00f0: 37 07 79 19 88 d9 41 ee 07 8a 41 cd 5d 98 65 fb \|7.y...A...A.].e.\|
				0100: e5 9e 45 bf 8d 7f 9f c6 97 9f 2b 44 34 67 d9 ec \|..E.......+D4g..\|
				0110: 8e 0f a0 61 a8 eb 82 82 2e c9 c2 20 25 d5 34 c5 \|...a....... %.4.\|
				0120: d0 d8 c2 dc d4 c2 d4 c4 30 d9 34 cd c0 d4 c8 cc \|........0.4.....\|
				0130: 34 31 c5 d0 c4 24 31 c9 32 2d d1 c2 2c c5 30 25 \|41...$1.2-..,.0%\|
				0140: 09 e4 ee 85 8f 85 ff 88 ab 89 36 c7 2a c4 47 34 \|..........6.*.G4\|
				0150: fe f8 ec 7b 73 37 3f c3 24 62 1d 8d 4d 1d 9e 40 \|...{s7?.$b..M..@\|
				0160: 06 3b 10 14 36 a4 38 10 04 d8 21 01 9a b1 83 f7 \|.;..6.8...!.....\|
				0170: e9 45 8b d2 56 c7 a3 1f 82 52 d7 8a 78 ed fc d5 \|.E..V....R..x...\|
				0180: 76 f1 36 25 81 89 c7 ad ec 90 34 48 75 2b 89 49 \|v.6%......4Hu+.I\|
				0190: bf 00 d6 97 f0 8d \|......\|

				$ echo "http://localhost:$HGPORT1/full.hg" > server/.hg/clonebundles.manifest
				$ hg clone -U http://localhost:$HGPORT full-bundle
				applying clone bundle from http://localhost:$HGPORT1/full.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found

				Feature works over SSH

				$ hg clone -U -e "python \"$TESTDIR/dummyssh\"" ssh://user@dummy/server ssh-full-clone
				applying clone bundle from http://localhost:$HGPORT1/full.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found

				Entry with unknown BUNDLESPEC is filtered and not used

				$ cat > server/.hg/clonebundles.manifest << EOF
				> http://bad.entry1 BUNDLESPEC=UNKNOWN
				> http://bad.entry2 BUNDLESPEC=xz-v1
				> http://bad.entry3 BUNDLESPEC=none-v100
				> http://localhost:$HGPORT1/full.hg BUNDLESPEC=gzip-v2
				> EOF

				$ hg clone -U http://localhost:$HGPORT filter-unknown-type
				applying clone bundle from http://localhost:$HGPORT1/full.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found

				Automatic fallback when all entries are filtered

				$ cat > server/.hg/clonebundles.manifest << EOF
				> http://bad.entry BUNDLESPEC=UNKNOWN
				> EOF

				$ hg clone -U http://localhost:$HGPORT filter-all
				no compatible clone bundles available on server; falling back to regular clone
				(you may want to report this to the server operator)
				requesting all changes
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files

				URLs requiring SNI are filtered in Python <2.7.9

				$ cp full.hg sni.hg
				$ cat > server/.hg/clonebundles.manifest << EOF
				> http://localhost:$HGPORT1/sni.hg REQUIRESNI=true
				> http://localhost:$HGPORT1/full.hg
				> EOF

				#if sslcontext
				Python 2.7.9+ support SNI

				$ hg clone -U http://localhost:$HGPORT sni-supported
				applying clone bundle from http://localhost:$HGPORT1/sni.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found
				#else
				Python <2.7.9 will filter SNI URLs

				$ hg clone -U http://localhost:$HGPORT sni-unsupported
				applying clone bundle from http://localhost:$HGPORT1/full.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found
				#endif

				Stream clone bundles are supported

				$ hg -R server debugcreatestreamclonebundle packed.hg
				writing 613 bytes for 4 files
				bundle requirements: generaldelta, revlogv1

				No bundle spec should work

				$ cat > server/.hg/clonebundles.manifest << EOF
				> http://localhost:$HGPORT1/packed.hg
				> EOF

				$ hg clone -U http://localhost:$HGPORT stream-clone-no-spec
				applying clone bundle from http://localhost:$HGPORT1/packed.hg
				4 files to transfer, 613 bytes of data
				transferred 613 bytes in . seconds (*) (glob)
				finished applying clone bundle
				searching for changes
				no changes found

				Bundle spec without parameters should work

				$ cat > server/.hg/clonebundles.manifest << EOF
				> http://localhost:$HGPORT1/packed.hg BUNDLESPEC=none-packed1
				> EOF

				$ hg clone -U http://localhost:$HGPORT stream-clone-vanilla-spec
				applying clone bundle from http://localhost:$HGPORT1/packed.hg
				4 files to transfer, 613 bytes of data
				transferred 613 bytes in . seconds (*) (glob)
				finished applying clone bundle
				searching for changes
				no changes found

				Bundle spec with format requirements should work

				$ cat > server/.hg/clonebundles.manifest << EOF
				> http://localhost:$HGPORT1/packed.hg BUNDLESPEC=none-packed1;requirements%3Drevlogv1
				> EOF

				$ hg clone -U http://localhost:$HGPORT stream-clone-supported-requirements
				applying clone bundle from http://localhost:$HGPORT1/packed.hg
				4 files to transfer, 613 bytes of data
				transferred 613 bytes in . seconds (*) (glob)
				finished applying clone bundle
				searching for changes
				no changes found

				Stream bundle spec with unknown requirements should be filtered out

				$ cat > server/.hg/clonebundles.manifest << EOF
				> http://localhost:$HGPORT1/packed.hg BUNDLESPEC=none-packed1;requirements%3Drevlogv42
				> EOF

				$ hg clone -U http://localhost:$HGPORT stream-clone-unsupported-requirements
				no compatible clone bundles available on server; falling back to regular clone
				(you may want to report this to the server operator)
				requesting all changes
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files

				Set up manifest for testing preferences
				(Remember, the TYPE does not have to match reality - the URL is
				important)

				$ cp full.hg gz-a.hg
				$ cp full.hg gz-b.hg
				$ cp full.hg bz2-a.hg
				$ cp full.hg bz2-b.hg
				$ cat > server/.hg/clonebundles.manifest << EOF
				> http://localhost:$HGPORT1/gz-a.hg BUNDLESPEC=gzip-v2 extra=a
				> http://localhost:$HGPORT1/bz2-a.hg BUNDLESPEC=bzip2-v2 extra=a
				> http://localhost:$HGPORT1/gz-b.hg BUNDLESPEC=gzip-v2 extra=b
				> http://localhost:$HGPORT1/bz2-b.hg BUNDLESPEC=bzip2-v2 extra=b
				> EOF

				Preferring an undefined attribute will take first entry

				$ hg --config ui.clonebundleprefers=foo=bar clone -U http://localhost:$HGPORT prefer-foo
				applying clone bundle from http://localhost:$HGPORT1/gz-a.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found

				Preferring bz2 type will download first entry of that type

				$ hg --config ui.clonebundleprefers=COMPRESSION=bzip2 clone -U http://localhost:$HGPORT prefer-bz
				applying clone bundle from http://localhost:$HGPORT1/bz2-a.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found

				Preferring multiple values of an option works

				$ hg --config ui.clonebundleprefers=COMPRESSION=unknown,COMPRESSION=bzip2 clone -U http://localhost:$HGPORT prefer-multiple-bz
				applying clone bundle from http://localhost:$HGPORT1/bz2-a.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found

				Sorting multiple values should get us back to original first entry

				$ hg --config ui.clonebundleprefers=BUNDLESPEC=unknown,BUNDLESPEC=gzip-v2,BUNDLESPEC=bzip2-v2 clone -U http://localhost:$HGPORT prefer-multiple-gz
				applying clone bundle from http://localhost:$HGPORT1/gz-a.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found

				Preferring multiple attributes has correct order

				$ hg --config ui.clonebundleprefers=extra=b,BUNDLESPEC=bzip2-v2 clone -U http://localhost:$HGPORT prefer-separate-attributes
				applying clone bundle from http://localhost:$HGPORT1/bz2-b.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found

				Test where attribute is missing from some entries

				$ cat > server/.hg/clonebundles.manifest << EOF
				> http://localhost:$HGPORT1/gz-a.hg BUNDLESPEC=gzip-v2
				> http://localhost:$HGPORT1/bz2-a.hg BUNDLESPEC=bzip2-v2
				> http://localhost:$HGPORT1/gz-b.hg BUNDLESPEC=gzip-v2 extra=b
				> http://localhost:$HGPORT1/bz2-b.hg BUNDLESPEC=bzip2-v2 extra=b
				> EOF

				$ hg --config ui.clonebundleprefers=extra=b clone -U http://localhost:$HGPORT prefer-partially-defined-attribute
				applying clone bundle from http://localhost:$HGPORT1/gz-b.hg
				adding changesets
				adding manifests
				adding file changes
				added 2 changesets with 2 changes to 2 files
				finished applying clone bundle
				searching for changes
				no changes found