* 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>

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

This is required when uploading jars by URL.

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

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

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

Bumps [github.com/go-openapi/runtime](https://github.com/go-openapi/runtime) from 0.19.27 to 0.19.28.
- [Release notes](https://github.com/go-openapi/runtime/releases)
- [Commits](https://github.com/go-openapi/runtime/compare/v0.19.27...v0.19.28

)

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

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

* Improve code sharing in pluggable type support

This patch removes some of the duplicate logic from specific type implementations and moves it into the base design which hopefully makes writing pluggable types a bit easier.

Signed-off-by: Bob Callaway <bob.callaway@gmail.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 new type for JAR archives

This adds support for a new pluggable type that can extract signatures
from signed JAR files. Per the JAR spec, a special manifest file is
created with the digest hashes of all included content in the JAR file.
It is this special manifest file that is then signed, and included in a
file within the archive in PKCS7 format. The PKCS7 file also includes
the X509 certificate that can be used to verify the signed manifest file
inside of the JAR.

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

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>

Bumps [golangci/golangci-lint-action](https://github.com/golangci/golangci-lint-action) from v2 to v2.5.2.
- [Release notes](https://github.com/golangci/golangci-lint-action/releases)
- [Commits](https://github.com/golangci/golangci-lint-action/compare/v2...5c56cd6c9dc07901af25baab6f2b0d9f3b7c3018

)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.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>

CODEOWNERS file maps to a GitHub teams group and allows a simple
means of repository maitainance.

This file can later be extended to include other special interest
groups such as docs

Signed-off-by: Luke Hinds <lhinds@redhat.com>

Revert "[api] Add max 32 mb on content data"

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

[api] Add max 32 mb on content data

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

Drop signature verification in rekor server.

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>

Bump google.golang.org/grpc from 1.36.1 to 1.37.0

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.36.1 to 1.37.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.36.1...v1.37.0

)

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

rekor-cli: Pretty print for get cmd

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

rekor-cli: logproof -last-size default fix

I will perform a 'lazy consensus' and self-merge this is not
approved by 07/05/2021

The idea is to point to one file in community where we can
add to the security handling process without updating all repos.

Signed-off-by: Luke Hinds <lhinds@redhat.com>

Bumps [golangci/golangci-lint-action](https://github.com/golangci/golangci-lint-action) from v2.5.1 to v2.5.2.
- [Release notes](https://github.com/golangci/golangci-lint-action/releases)
- [Commits](https://github.com/golangci/golangci-lint-action/compare/v2.5.1...5c56cd6c9dc07901af25baab6f2b0d9f3b7c3018

)

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

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

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

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>

* fail build if diff exists

Right now the build tries to detect mismatches between what is in the change versus any changes actually occurred from a clean rebuild (e.g. missed checking in any updates to generated code). However if those are present, the build logs print that out but do not cause the build to fail.

Also bumps GOVERSION to match what is used in Dockerfile so we don't have go.mod or go.sum as a reason for above.

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

Bumps golang from 1.16.2 to 1.16.3.

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

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

Bumps [github.com/go-openapi/swag](https://github.com/go-openapi/swag) from 0.19.14 to 0.19.15.
- [Release notes](https://github.com/go-openapi/swag/releases)
- [Commits](https://github.com/go-openapi/swag/compare/v0.19.14...v0.19.15

)

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

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

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

-last-size is defaulting to 1, but fixing it to 0 so we can properly error out
if it's unspecified.

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>

Otherwise prints []byte contents which are not quite usable.

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>

Bump github.com/go-openapi/strfmt from 0.20.0 to 0.20.1

Bumps [github.com/go-openapi/strfmt](https://github.com/go-openapi/strfmt) from 0.20.0 to 0.20.1.
- [Release notes](https://github.com/go-openapi/strfmt/releases)
- [Commits](https://github.com/go-openapi/strfmt/compare/v0.20.0...v0.20.1

)

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