Mercurial > hg
view tests/test-patchbomb-bookmark.t @ 37048:fc5e261915b9
wireproto: require POST for all HTTPv2 requests
Wire protocol version 1 transfers argument data via request
headers by default. This has historically caused problems because
servers institute limits on the length of individual HTTP headers
as well as the total size of all request headers. Mercurial servers
can advertise the maximum length of an individual header. But
there's no guarantee any intermediate HTTP agents will accept
headers up to that length.
In the existing wire protocol, server operators typically also
key off the HTTP request method to implement authentication.
For example, GET requests translate to read-only requests and
can be allowed. But read-write commands must use POST and require
authentication. This has typically worked because the only wire
protocol commands that use POST modify the repo (e.g. the
"unbundle" command).
There is an experimental feature to enable clients to transmit
argument data via POST request bodies. This is technically a
better and more robust solution. But we can't enable it by default
because of servers assuming POST means write access.
In version 2 of the wire protocol, the permissions of a request
are encoded in the URL. And with it being a new protocol in a new
URL space, we're not constrained by backwards compatibility
requirements.
This commit adopts the technically superior mechanism of using
HTTP request bodies to send argument data by requiring POST for
all commands. Strictly speaking, it may be possible to send
request bodies on GET requests. But my experience is that not all
HTTP stacks support this. POST pretty much always works. Using POST
for read-only operations does sacrifice some RESTful design
purity. But this API cares about practicality, not about being
in Roy T. Fielding's REST ivory tower.
There's a chance we may relax this restriction in the future. But
for now, I want to see how far we can get with a POST only API.
Differential Revision: https://phab.mercurial-scm.org/D2837
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Tue, 13 Mar 2018 11:57:43 -0700 |
parents | 2d0c306a88c2 |
children | d7007b807fa2 |
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Create @ bookmark as main reference $ hg init repo $ cd repo $ echo "[extensions]" >> $HGRCPATH $ echo "patchbomb=" >> $HGRCPATH $ hg book @ Create a dummy revision that must never be exported $ echo no > no $ hg ci -Amno -d '6 0' adding no Create a feature and use -B $ hg book booktest $ echo first > a $ hg ci -Amfirst -d '7 0' adding a $ echo second > b $ hg ci -Amsecond -d '8 0' adding b $ hg email --date '1981-1-1 0:1' -n -t foo -s bookmark -B booktest From [test]: test this patch series consists of 2 patches. Write the introductory message for the patch series. Cc: displaying [PATCH 0 of 2] bookmark ... MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Subject: [PATCH 0 of 2] bookmark Message-Id: <patchbomb.347155260@*> (glob) User-Agent: Mercurial-patchbomb/* (glob) Date: Thu, 01 Jan 1981 00:01:00 +0000 From: test To: foo displaying [PATCH 1 of 2] first ... MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Subject: [PATCH 1 of 2] first X-Mercurial-Node: accde9b8b6dce861c185d0825c1affc09a79cb26 X-Mercurial-Series-Index: 1 X-Mercurial-Series-Total: 2 Message-Id: <accde9b8b6dce861c185.347155261@*> (glob) X-Mercurial-Series-Id: <accde9b8b6dce861c185.347155261@*> (glob) In-Reply-To: <patchbomb.347155260@*> (glob) References: <patchbomb.347155260@*> (glob) User-Agent: Mercurial-patchbomb/* (glob) Date: Thu, 01 Jan 1981 00:01:01 +0000 From: test To: foo # HG changeset patch # User test # Date 7 0 # Thu Jan 01 00:00:07 1970 +0000 # Node ID accde9b8b6dce861c185d0825c1affc09a79cb26 # Parent 043bd3889e5aaf7d88fe3713cf425f782ad2fb71 first diff -r 043bd3889e5a -r accde9b8b6dc a --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/a Thu Jan 01 00:00:07 1970 +0000 @@ -0,0 +1,1 @@ +first displaying [PATCH 2 of 2] second ... MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Subject: [PATCH 2 of 2] second X-Mercurial-Node: 417defd1559c396ba06a44dce8dc1c2d2d653f3f X-Mercurial-Series-Index: 2 X-Mercurial-Series-Total: 2 Message-Id: <417defd1559c396ba06a.347155262@*> (glob) X-Mercurial-Series-Id: <accde9b8b6dce861c185.347155261@*> (glob) In-Reply-To: <patchbomb.347155260@*> (glob) References: <patchbomb.347155260@*> (glob) User-Agent: Mercurial-patchbomb/* (glob) Date: Thu, 01 Jan 1981 00:01:02 +0000 From: test To: foo # HG changeset patch # User test # Date 8 0 # Thu Jan 01 00:00:08 1970 +0000 # Node ID 417defd1559c396ba06a44dce8dc1c2d2d653f3f # Parent accde9b8b6dce861c185d0825c1affc09a79cb26 second diff -r accde9b8b6dc -r 417defd1559c b --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/b Thu Jan 01 00:00:08 1970 +0000 @@ -0,0 +1,1 @@ +second Do the same and combine with -o only one must be exported $ cd .. $ hg clone repo repo2 updating to bookmark @ 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd repo $ hg up @ 0 files updated, 0 files merged, 2 files removed, 0 files unresolved (activating bookmark @) $ hg book outgoing $ echo 1 > x $ hg ci -Am1 -d '8 0' adding x created new head $ hg push ../repo2 -B outgoing pushing to ../repo2 searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) exporting bookmark outgoing $ echo 2 > y $ hg ci -Am2 -d '9 0' adding y $ hg email --date '1982-1-1 0:1' -n -t foo -s bookmark -B outgoing -o ../repo2 comparing with ../repo2 From [test]: test this patch series consists of 1 patches. Cc: displaying [PATCH] bookmark ... MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Subject: [PATCH] bookmark X-Mercurial-Node: 8dab2639fd35f1e337ad866c372a5c44f1064e3c X-Mercurial-Series-Index: 1 X-Mercurial-Series-Total: 1 Message-Id: <8dab2639fd35f1e337ad.378691260@*> (glob) X-Mercurial-Series-Id: <8dab2639fd35f1e337ad.378691260@*> (glob) User-Agent: Mercurial-patchbomb/* (glob) Date: Fri, 01 Jan 1982 00:01:00 +0000 From: test To: foo # HG changeset patch # User test # Date 9 0 # Thu Jan 01 00:00:09 1970 +0000 # Node ID 8dab2639fd35f1e337ad866c372a5c44f1064e3c # Parent 0b24b8316483bf30bfc3e4d4168e922b169dbe66 2 diff -r 0b24b8316483 -r 8dab2639fd35 y --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/y Thu Jan 01 00:00:09 1970 +0000 @@ -0,0 +1,1 @@ +2