* Move range.go into sharding package to avoid import cycles

Signed-off-by: Lily Sturmann <lsturman@redhat.com>

* Change name of FullID to EntryID

Signed-off-by: Lily Sturmann <lsturman@redhat.com>

* Add unit tests for sharding package

Also add a few helper functions and update names.

Signed-off-by: Lily Sturmann <lsturman@redhat.com>

* Add logic to GET artifacts via old UUID or new EntryID

Signed-off-by: Lily Sturmann <lsturman@redhat.com>

* Add e2e test for longer EntryID

Signed-off-by: Lily Sturmann <lsturman@redhat.com>

Right now the type itself is defined in the cli package, which means we can't
use it without an import cycle.

Signed-off-by: Dan Lorenc <lorenc.d@gmail.com>

* rekor-server: Implement /api/v1/version

This implements a version endpoint for rekor. This helps figure out the
version the server is currently running. It could later be used to
implement version compatibility with CLI utilities.

Example:
   λ rekor main» curl -s localhost:3000/api/v1/version | jq
   {
     "builddate": "'2021-12-27T13:20:32Z'",
     "commit": "12d1a47c",
     "treestate": "dirty",
     "version": "v0.4.0-15-g12d1a47-dirty"
   }

This removes some duplication of the build flags and inserts them into
/pkg/api which is then reused across the utilities.

Signed-off-by: Morten Linderud <morten@linderud.pw>

Signed-off-by: Morten Linderud <morten@linderud.pw>

* Generated files

Signed-off-by: Morten Linderud <morten@linderud.pw>

This was never actually correct - these are technically "payloadTypes", which are
not actually mediaTypes. Some implementations mistakenly sent incorrect media types, so
it appeared to work. The GCS storage layer rejected correct implementations that sent the
payloadType, because these are not valid mediaTypes.

We never used this field anyway, so let's drop it. I verified that the API correctly ignores
unknown fields, so removing this will not break clients that send it.

Signed-off-by: Dan Lorenc <lorenc.d@gmail.com>

We were catching these inside the IndexKeys function calls and logging, this
change moves that up to the caller. This is much more standard and simplifies the
implementations.

Signed-off-by: Dan Lorenc <lorenc.d@gmail.com>

* rename ecosystem to origin

Signed-off-by: Asra Ali <asraa@google.com>

* update comments

Signed-off-by: Asra Ali <asraa@google.com>

* Bump google.golang.org/grpc from 1.42.0 to 1.43.0

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.42.0 to 1.43.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.42.0...v1.43.0

)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* replace grpc.WithInsecure() with insecure.NewCredentials()

Signed-off-by: Carlos Panato <ctadeu@gmail.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Carlos Panato <ctadeu@gmail.com>

I had to change a few package imports to deal with upstream refactoring.

Signed-off-by: Dan Lorenc <lorenc.d@gmail.com>

Signed-off-by: Lily Sturmann <lsturman@redhat.com>

Each of the supported types has a Canonicalize() method that generates a
JSON representation of the entry. If the golang library were to make a
change to the order of keys when marshalling an object, it would cause
a duplicate entry in the log for a semantically equivalent object.

This change simply transforms the JSON into RFC8785-compliant
canonicalized JSON protecting against any changes in JSON libraries
going forward.

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

This is in preparation for supporting multiple logIDs (for sharding).

Signed-off-by: Dan Lorenc <dlorenc@google.com>

* Adds rekor TUF type

Co-authored-by: Santiago Torres <santiagotorres@purdue.edu>
Co-authored-by: Trishank Karthik Kuppusamy <trishank.kuppusamy@datadoghq.com>
Co-authored-by: Marina Moore <mnm678@gmail.com>
Signed-off-by: Asra Ali <asraa@google.com>

* add type documentation

Signed-off-by: Asra Ali <asraa@google.com>

* Address bob comments

Signed-off-by: Asra Ali <asraa@google.com>

* run make

Signed-off-by: Asra Ali <asraa@google.com>

* wip

Signed-off-by: Asra Ali <asraa@google.com>

* Address comments

Signed-off-by: Asra Ali <asraa@google.com>

Co-authored-by: Santiago Torres <santiagotorres@purdue.edu>
Co-authored-by: Trishank Karthik Kuppusamy <trishank.kuppusamy@datadoghq.com>
Co-authored-by: Marina Moore <mnm678@gmail.com>

* use an in memory timestamping key

Signed-off-by: Asra Ali <asraa@google.com>

* address comments

Signed-off-by: Asra Ali <asraa@google.com>

* generalize signed checkpoint

Signed-off-by: Asra Ali <asraa@google.com>

* store note as text representation

Signed-off-by: Asra Ali <asraa@google.com>

* cleanup diff

Signed-off-by: Asra Ali <asraa@google.com>

* simplify

Signed-off-by: Asra Ali <asraa@google.com>

* use signer/verifier

Signed-off-by: Asra Ali <asraa@google.com>

* address dan comments

Signed-off-by: Asra Ali <asraa@google.com>

Previously we returned an HTTP 500 "error canonicalizing entry" error if
Rekor was unable to parse or verify the proposed content of a new log
entry. This adds a new error type ValidationError that allows
implementers of the Canonicalize method to delineate between internal,
transient errors and errors that clients can rectify.

With this patch, errors parsing or validating (provided or referenced)
artifacts will return an HTTP 400 message to the client with a message
about the issue.

Fixes: #362

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* Refactor PKI factory and add type checking

This allows for more DRY addition of new PKI types, and stricter
type checking. This also allows for simpler enumeration of
supported PKI formats which will be used in further updates to
simplify the CLI codebase.

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* revamp CLI flags; support different versions for upload

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* Add Alpine Package type

This adds support for the alpine package format used by Alpine Linux,
which is the concatenation of three tgz files (signature, control data,
and then the actual package files).

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* use shaFlag for --artifact-hash

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* change arg type to PKIFormat

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* defer type-specific validation logic to type code (instead of in CLI); also use CliLogger throughout CLI

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* refactor factory code

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* review comments

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* Clean up EntryImpl interface

Make the interface clearer by removing ambiguity around who and when an
entry should have external objects fetched or validated.

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* update pluggable type README

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* Refactor PKI factory and add type checking

This allows for more DRY addition of new PKI types, and stricter
type checking. This also allows for simpler enumeration of
supported PKI formats which will be used in further updates to
simplify the CLI codebase.

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* revamp CLI flags; support different versions for upload

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* Add Alpine Package type

This adds support for the alpine package format used by Alpine Linux,
which is the concatenation of three tgz files (signature, control data,
and then the actual package files).

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* use shaFlag for --artifact-hash

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* change arg type to PKIFormat

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* defer type-specific validation logic to type code (instead of in CLI); also use CliLogger throughout CLI

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* refactor factory code

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* review comments

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

Signed-off-by: Dan Lorenc <dlorenc@google.com>

Signed-off-by: Dan Lorenc <lorenc.d@gmail.com>

* Adopt new signing/verification APIs from sigstore

This uses the new APIs introduced in sigstore/sigstore/pkg/signature and
removes most of the calls directly to the golang crypto APIs.

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

Signed-off-by: Asra Ali <asraa@google.com>

* upload all generated timestamps

Signed-off-by: Asra Ali <asraa@google.com>

* address bazooka comments

Signed-off-by: Asra Ali <asraa@google.com>

* simplify params

Signed-off-by: Asra Ali <asraa@google.com>

* address changes

Signed-off-by: Asra Ali <asraa@google.com>

* forgot to run swagger

Signed-off-by: Asra Ali <asraa@google.com>

Signed-off-by: Asra Ali <asraa@google.com>

* Convert STH to checkpoint format

This switches away from sending the (now deprecated) Trillian LogRootV1
format over to the checkpoint format documented at
https://github.com/google/trillian-examples/tree/master/formats/log



Fixes: #313

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

This adds an "Attestation" method to the entry interface. Entries can
return an attestation that they would like to store.

The attestations are currently stored in GCS, but it supports any blob store.
The feature is turned off with a flag, and we can set a max size as well.

Signed-off-by: Dan Lorenc <dlorenc@google.com>

This saves an if err != nil... check.

Signed-off-by: Dan Lorenc <dlorenc@google.com>

* Add timestamps

Signed-off-by: Asra Ali <asraa@google.com>

* change

Signed-off-by: Asra Ali <asraa@google.com>

* address comments

Signed-off-by: Asra Ali <asraa@google.com>

* address comments

Signed-off-by: Asra Ali <asraa@google.com>

* fix binary writer

Signed-off-by: Asra Ali <asraa@google.com>

* add tsa

Signed-off-by: Asra Ali <asraa@google.com>

* distangle cert chain creation from new signer

Signed-off-by: Asra Ali <asraa@google.com>

* revert some now unncessary changes

Signed-off-by: Asra Ali <asraa@google.com>

* cert chain 404

Signed-off-by: Asra Ali <asraa@google.com>

* fix

Signed-off-by: Asra Ali <asraa@google.com>

* Add Log ID to LogEntry field

Since the signed entry timestamp (SET) will be able to prove insertion into the log, adding the log ID (aka public key SHA256 hash) makes it easier to know which log the entry came from. 

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* GetLogByIndexHandler returns 404 for missing index

GRPC return codes have changed after switching the Trillian GRPC calls
due to recent changes; therefore we need to adapt for InvalidArgument
which should be returned as a 404 Not Found error to callers.

Fixes #296

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* Add sha256 prefix to index keys for artifact hashes

This change adds the `sha256:` prefix to index values that are created to simplify searching the transparency log for artifacts. In case we shift to using a different hashing algorithm in the future, this will provide a way to specify it.

Fixes #289

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

* Add signature to LogEntry for offline verification

Also add an integration test for this.

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Address code review comments:
- Canonicalize payload before signing it
- Change name of signature to signedEntryTimestamp
- move signedEntryTimestamp and inclusionProof into separate Verification field in LogEntry

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Create helper func for extracting log entry

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Add info around verifying signedEntryTimestamp as comments in openapi.yaml

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Generalize verification instructions

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

Signed-off-by: Asra Ali <asraa@google.com>

* Update trillian dependency to master

This removes calls to the trillian verifier and replaces them with calls to a new rekor verify package!
The `verify` package currently only verifies the signed log root.

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Fix lint

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Add verifier back in and update trillian images

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Make verify private

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Address code review comments

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Roll back to trillian v1.3.13

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Pin trillian to latest commit

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Add signing package for signing within rekor

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Remove public key from trillian and add in TODO for getting public key from Signer

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Create signer flag and store signer in api struct

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Remove public key from tlog in API, replace with a new pubkey tag

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Make sure we can get the public key locally

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Fix build error

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Reuse cosign implementation of signing interface

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* fix lint

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Add in-memory signer, store unmarshaled public key in api

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Temporarily skip the log_info test, since we are now getting the public key from rekor and not trillian

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Replace cosign import with sigstore

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Add unit test for memory signer

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Remove unnecessary code

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* skip test

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Sign the signature for the signed log root ourselves

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* Include memory as a signer option for signer flag, make memory default

Signed-off-by: Priya Wadhwa <priyawadhwa@google.com>

* update boilerplate header and apply go fmt

Signed-off-by: Carlos Panato <ctadeu@gmail.com>

* lints: fix golangci-lint issues

Signed-off-by: Carlos Panato <ctadeu@gmail.com>

* updated based on feedback

Signed-off-by: Carlos Panato <ctadeu@gmail.com>

This is changing as part of the general trillian signature changes.
The trust model is still client -> database, our server trusts our
database so we can pass signed messages on directly to users without
double verification.

Signed-off-by: Dan Lorenc <dlorenc@google.com>

This patch removes the /api/v1/log/entries/{uuid}/proof endpoint. If you
have the UUID (aka the leaf Merkle hash), you likely want proof that the
content represented by that hash is included in the log. There's no need
for a separate /proof endpoint to deliver the same content.

This commit also ensures that the getLogEntryByIndex and
getLogEntryByUUID endpoints return an inclusion proof as part of their
response content. The search endpoint also now returns the inclusion
proof of all entries returned from the query.

With this patch, Rekor no longer uses the deprecated `GetLeavesByHash`
Trillian API.

Fixes #229

Signed-off-by: Bob Callaway <bob.callaway@gmail.com>

Adds a Location response header when a 409 Conflict error is returned
from the server when a duplicate entry is sent for insertion into the
log. Also changes message printed by CLI to improve usability.

Fixes #222

Signed-off-by: Bob Callaway <bcallawa@redhat.com>

* Remove gzip processing flow completely from rekor

Issue #208 reported different handling of gzipped content via fetch vs
direct upload to rekor server. The code should be consistent, regardless
of whether content was compressed or not - by always attempting to
verify the signature against the (unmodified) byte stream.

This patch removes the gzip decoding completely from rekor and verifies
the bytes supplied or referenced.

Also fixes issue in E2E tests where sending SIGKILL to watch process
caused message to be printed to stderr, which fails the test when
running on MacOS.

Fixes #208

Signed-off-by: Bob Callaway <bcallawa@redhat.com>

This will allow us to use types.NewEntry() to unmarshal returned
values in clients.

Signed-off-by: Dan Lorenc <dlorenc@google.com>