apt/apt-pkg/acquire-worker.cc, branch 2.0.2

Drop pkgAcquire::Item::ModifyRetries() ABI hack

2020-02-26T13:10:47Z

apt-pkg: URI: Add 'explicit' to single argument constructor

2019-04-30T15:43:56Z

This needs a fair amount of changes elsewhere in the code, hence this is separate from the previous commits.

acq: worker: Move CurrentSize, TotalSize, ResumePoint to CurrentItem

2019-04-30T15:40:38Z

These status fields belong to the current item, move them there. This prepares us for eventually having multiple current items.

Disable deprecated methods (ftp, rsh, ssh) by default

2019-01-31T15:21:04Z

These methods are not supposed to be used anymore, they are not actively maintained and may hence contain odd bugs. Fixes !49

Drop alternative URIs we got a hash-based fail from

2018-05-11T16:28:19Z

If we got a file but it produced a hash error, mismatched size or similar we shouldn't fallback to alternative URIs as they likely result in the same error. If we can we should instead use another mirror. We used to be a lot stricter by stopping all trys for this file if we got a non-404 (or a hash-based) failure, but that is too hard as we really want to try other mirrors (if we have them) in the hope that they have the expected and correct files.

Remove obsolete RCS keywords

2018-05-07T11:41:31Z

Prompted-by: Jakub Wilk

Fix various typos reported by spellcheckers

2018-05-04T22:34:27Z

Reported-By: codespell & spellintian Gbp-Dch: Ignore

require methods to request AuxRequest capability at startup

2018-01-03T18:42:45Z

Allowing a method to request work from other methods is a powerful capability which could be misused or exploited, so to slightly limited the surface let method opt-in into this capability on startup.

reimplement and simplify mirror:// method

2018-01-03T17:55:41Z

Embedding an entire acquire stack and HTTP logic in the mirror method made it rather heavy weight and fragile. This reimplement goes the other way by doing only the bare minimum in the method itself and instead redirect the actual download of files to their proper methods. The reimplementation drops the (in the real world) unused query-string feature as it isn't really implementable in the new architecture.

allow a method to request auxiliary files

2018-01-03T17:55:41Z

If a method needs a file to operate like e.g. mirror needs to get a list of mirrors before it can redirect the the actual requests to them. That could easily be solved by moving the logic into libapt directly, but by allowing a method to request other methods to do something we can keep this logic contained in the method and allow e.g. also methods which perform binary patching or similar things. Previously they would need to implement their own acquire system inside the existing one which in all likelyhood will not support the same features and methods nor operate with similar security compared to what we have already running 'above' the requesting method. That said, to avoid methods producing conflicts with "proper" files we are downloading a new directory is introduced to keep the auxiliary files in. [The message magic number 351 is a tribute to the german Grundgesetz article 35 paragraph 1 which defines that all authorities of the state(s) help each other on request.]