Commit Graph

5 Commits

Author SHA1 Message Date
Simone Basso
2d721baa91
cleanup: merge httpheader and httpfailure into model (#758)
These two small packages could easily be merged into the model
package, since they're clearly model-like packages.

Part of https://github.com/ooni/probe/issues/2115
2022-05-25 09:54:50 +02:00
Simone Basso
b5da8be183
fix(netxlite): robust {ReadAll,Copy}Context with wrapped io.EOF (#661)
* chore(netxlite): add currently failing test case

This diff introduces a test cases that will fail because of the reason
explained in https://github.com/ooni/probe/issues/1965.

* chore(netxlite/iox_test.go): add failing unit tests

These tests directly show how the Go implementation of ReadAll
and Copy has the issue of checking for io.EOF equality.

* fix(netxlite): make {ReadAll,Copy}Context robust to wrapped io.EOF

The fix is simple: we just need to check for `errors.Is(err, io.EOF)`
after either io.ReadAll or io.Copy has returned. When this condition is
true, we need to convert the error back to `nil` as it ought to be.

While there, observe that the unit tests I committed in the previous
commit are wrongly asserting that the error must be wrapped. This
assertion is not correct, because in both cases we have just ensured
that the returned error is `nil` (i.e., success).

See https://github.com/ooni/probe/issues/1965.

* cleanup: remove previous workaround for wrapped io.EOF

These workarounds were partial, meaning that they would cover some
cases in which the issue occurred but not all of them.

Handling the problem in `netxlite.{ReadAll,Copy}Context` is the
right thing to do _as long as_ we always use these functions instead
of `io.{ReadAll,Copy}`.

This is why it's now important to ensure we clearly mention that
inside of the `CONTRIBUTING.md` guide and to also ensure that we're
not using these functions in the code base.

* fix(urlgetter): repair tests who assumed to see EOF error

Now that we have established that we should normalize EOF when
reading bodies like the stdlib does and now that it's clear why
our behavior diverged from the stdlib, we also need to repair
all the tests that assumed this incorrect behavior.

* fix(all): don't use io{,util}.{Copy,ReadAll}

* feat: add checks to ensure we don't use io.{Copy,ReadAll}

* doc(netxlite): document we know how to deal w/ wrapped io.EOF

* fix(nocopyreadall.bash): add exception for i/n/iox.go
2022-01-12 14:26:10 +01:00
Simone Basso
33de701263
refactor: flatten and separate (#353)
* refactor(atomicx): move outside the engine package

After merging probe-engine into probe-cli, my impression is that we have
too much unnecessary nesting of packages in this repository.

The idea of this commit and of a bunch of following commits will instead
be to reduce the nesting and simplify the structure.

While there, improve the documentation.

* fix: always use the atomicx package

For consistency, never use sync/atomic and always use ./internal/atomicx
so we can just grep and make sure we're not risking to crash if we make
a subtle mistake on a 32 bit platform.

While there, mention in the contributing guidelines that we want to
always prefer the ./internal/atomicx package over sync/atomic.

* fix(atomicx): remove unnecessary constructor

We don't need a constructor here. The default constructed `&Int64{}`
instance is already usable and the constructor does not add anything to
what we are doing, rather it just creates extra confusion.

* cleanup(atomicx): we are not using Float64

Because atomicx.Float64 is unused, we can safely zap it.

* cleanup(atomicx): simplify impl and improve tests

We can simplify the implementation by using defer and by letting
the Load() method call Add(0).

We can improve tests by making many goroutines updated the
atomic int64 value concurrently.

* refactor(fsx): can live in the ./internal pkg

Let us reduce the amount of nesting. While there, ensure that the
package only exports the bare minimum, and improve the documentation
of the tests, to ease reading the code.

* refactor: move runtimex to ./internal

* refactor: move shellx into the ./internal package

While there, remove unnecessary dependency between packages.

While there, specify in the contributing guidelines that
one should use x/sys/execabs instead of os/exec.

* refactor: move ooapi into the ./internal pkg

* refactor(humanize): move to ./internal and better docs

* refactor: move platform to ./internal

* refactor(randx): move to ./internal

* refactor(multierror): move into the ./internal pkg

* refactor(kvstore): all kvstores in ./internal

Rather than having part of the kvstore inside ./internal/engine/kvstore
and part in ./internal/engine/kvstore.go, let us put every piece of code
that is kvstore related into the ./internal/kvstore package.

* fix(kvstore): always return ErrNoSuchKey on Get() error

It should help to use the kvstore everywhere removing all the
copies that are lingering around the tree.

* sessionresolver: make KVStore mandatory

Simplifies implementation. While there, use the ./internal/kvstore
package rather than having our private implementation.

* fix(ooapi): use the ./internal/kvstore package

* fix(platform): better documentation
2021-06-04 10:34:18 +02:00
Simone Basso
4eeadd06a5
refactor: move more commands to internal/cmd (#207)
* refactor: move more commands to internal/cmd

Part of https://github.com/ooni/probe/issues/1335.

We would like all commands to be at the same level of engine
rather than inside engine (now that we can do it).

* fix: update .gitignore

* refactor: also move jafar outside engine

* We should be good now?
2021-02-03 12:23:15 +01:00
Simone Basso
d57c78bc71
chore: merge probe-engine into probe-cli (#201)
This is how I did it:

1. `git clone https://github.com/ooni/probe-engine internal/engine`

2. ```
(cd internal/engine && git describe --tags)
v0.23.0
```

3. `nvim go.mod` (merging `go.mod` with `internal/engine/go.mod`

4. `rm -rf internal/.git internal/engine/go.{mod,sum}`

5. `git add internal/engine`

6. `find . -type f -name \*.go -exec sed -i 's@/ooni/probe-engine@/ooni/probe-cli/v3/internal/engine@g' {} \;`

7. `go build ./...` (passes)

8. `go test -race ./...` (temporary failure on RiseupVPN)

9. `go mod tidy`

10. this commit message

Once this piece of work is done, we can build a new version of `ooniprobe` that
is using `internal/engine` directly. We need to do more work to ensure all the
other functionality in `probe-engine` (e.g. making mobile packages) are still WAI.

Part of https://github.com/ooni/probe/issues/1335
2021-02-02 12:05:47 +01:00