Mercurial > hg
view tests/sslcerts/client-key-decrypted.pem @ 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> |
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date | Tue, 13 Mar 2018 11:57:43 -0700 |
parents | 9d02bed8477b |
children |
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-----BEGIN RSA PRIVATE KEY----- MIIEpQIBAAKCAQEA6upuVmEs1dTpBWRe4LLM1ARhnMQpI6jaQ8JKzQghMU/3T3n6 Qkimt2HmxuiczvsawAbUPpBAxZbBnKmXbKMiXjtQaO4o4gnyNZVuBgkq2Grc2BRE Of0vtUvnPumlnjyAcMNRm6iVbbOerPzVDn1nH7Ljf9UKyGl/Qj6eOAgez/TDui2f o5FUfaqUzF8B7FoaRmsErZZU9pJ+etKXM2DlLGofYNbOi+K0RbPypKNzeInNUnvh 9JXKntmLQHRwXDSvcGveKepfVlmz/qmeDqhQSonIXTektdyZ5g9dOvxEjQSYHp+7 exIKvrpXLfou3s9nCUTs6ekQLi1Tb4PngbhauwIDAQABAoIBABATjQuCSPQ1RuEk lk2gTt4vkpKM5hfXpWA/uqi/Zq4eP9mDinngyPAB1i5Emv6bNqBvlzTU4GnlQEi9 XmyD2YVDX+RecBPQBHBgUpA9Ll5zKbvr3yNszUgF8sRebwQeNdgBteMGLXu9cB18 jAQa1uTXdDQ6WyuN9LSO3nsNKzal8uucnZxdfFDIHx0MahPlrPfAkqzeKxxfyyRE jzia24oE+ewE8GHX/TvYnPybCPmBtRwbldA32vx8HbDCvlJanw3dyL98isBa5prr DsFaDltWzTKdJOIntdTJXRUDwYp7526bUEdGo/1FddbjW6Th8sXiJu91nL3BD/Qk mW102bECgYEA/zEtKgXjPeV9e3/vvAYU2Bsq8TkmhU6ZiZOQCdPWUNOsyfxibJBk XXsldtZ111vX/+fdGVPFJRoL1Qf4Xjf3MILVhAAcmfTpnWkdbveOrdCjbACE/ReQ xkExZdXhBd9YTS8IelL/Hv45FUo7UWWitgtvTG6caN3LaBTx1o2DiTkCgYEA66jS RQrsjRNT+cf7HBmKrKd7EknAH2v83ZyPd49BSBiNnmWaqPG2NxCLWpKks20xvRo2 j8nftCsu9vSXv+KLnSb2CfOefvNoui7wQyiiWxrMBEPn8DS5E7ctqAiIhQsWEK+e n9E0PW/wyKI1Gk5U1nHwEJt196kYPzD8QgnwB5MCgYEAloVrHl5aqyex3CaaQU1U /iMIMUCEeBzkc0GWtDU/NG2mfX1gkKiaiokYj//vgheqUEdzIn1Gy5uRXxZUaT6Z jwOc7T8jn6vWIALgWZOrlNp7ijjEOISt4EKT4H1HPS9/5gbX+U77LEzHXsdqNZi9 YKNeArc7ip9IWxv/iY3vCAECgYEAgMjOuGqC4Ynpf3x5T17p+PbB/DmPo9xY4ScZ BEamb2bzpddy0NbfNHJ3JXU0StXms6gqnyO8e/KJhO4gK/37PFO5a7DWMhyFZBIY vSrspwsa6U3O5+d4KT0W11hqewKW+WFwN3iVqumM1ahHiuu500OK5RiAPGsNVCNK CDD0Gr8CgYEAzwTt62ke3zCFOZ2E6EIR6eM+0Q9+B5zceU8DAZaTTxP4532HnT6/ iHMQvUh0KBE4Rxw3MeSgpe7gKIcMKXubrcDIsEz8vhhOM1xsYIzVEWLtoCLPTaSF OWQsk98VDt3SgEjb25nOjJ24zZzUVk45OiGUoxfn1Bp6BbJH7IDihCk= -----END RSA PRIVATE KEY-----