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Michael Marineau 0152a8b1b0 client: export NewAppRequest and SendAppRequest methods 
Allow for more flexibility in constructing requests if needed.
 		2017-06-09 18:40:25 -07:00
fixtures feat(omaha): add a machineid field 2014-03-17 14:29:04 -07:00
omaha client: export NewAppRequest and SendAppRequest methods 2017-06-09 18:40:25 -07:00
.gitignore Initial commit 2013-03-27 16:59:16 -07:00
.travis.yml travis: test against go 1.7 and 1.8 2017-04-21 14:12:44 -07:00
CONTRIBUTING.md CONTRIBUTING: fix line wrapping 2015-10-14 08:48:41 -07:00
DCO chore(contributing): clean up CONTRIBUTING.md and split out DCO 2014-04-04 10:40:37 -07:00
LICENSE feat(*): initial commit 2014-01-19 12:25:11 -08:00
NOTICE NOTICE: Bump copyright year 2017-02-10 09:36:49 -08:00
README.md client: send "Complete" event in update checks 2017-06-09 18:40:25 -07:00
code-of-conduct.md update code of conduct copy 2016-08-09 13:19:44 -07:00

README.md

Go Omaha

Build Status GoDoc

Implementation of the omaha update protocol in Go.

Status

This code is targeted for use with CoreOS's CoreUpdate product and the Container Linux update_engine. As a result this is not a complete implementation of the protocol and inherits a number of quirks from update_engine. These differences include:

  • No offline activity tracking. The protocol's ping mechanism allows for tracking application usage, reporting the number of days since the last ping and how many of those days saw active usage. CoreUpdate does not use this, instead assuming update clients are always online and checking in once every ~45-50 minutes. Clients not actively updating should send only a ping, indicating CoreUpdate's "Instance-Hold" state. Clients requesting an update should send a ping, update check, and an UpdateComplete:SuccessReboot event indicating CoreUpdate's "Complete" state.

  • Various protocol extensions/abuses. update_engine, likely due to earlier limitations of the protocol and Google's server implementation, uses a number of non-standard fields. For example, packing a lot of extra attributes such as the package's SHA-256 hash into a "postinstall" action. As much as possible the code includes comments about these extensions.

  • Many data fields not used by CoreUpdate are omitted.