fix(plugins): add base64 handling for []byte and remove raw=true (#5121)

* fix(plugins): add base64 handling for []byte and remove raw=true

Go's json.Marshal automatically base64-encodes []byte fields, but Rust's
serde_json serializes Vec<u8> as a JSON array and Python's json.dumps
raises TypeError on bytes. This fixes both directions of plugin
communication by adding proper base64 encoding/decoding in generated
client code.

For Rust templates (client and capability): adds a base64_bytes serde
helper module with #[serde(with = "base64_bytes")] on all Vec<u8> fields,
and adds base64 as a dependency. For Python templates: wraps bytes params
with base64.b64encode() and responses with base64.b64decode().

Also removes the raw=true binary framing protocol from all templates,
the parser, and the Method type. The raw mechanism added complexity that
is no longer needed once []byte works properly over JSON.

* fix(plugins): update production code and tests for base64 migration

Remove raw=true annotation from SubsonicAPI.CallRaw, delete all raw
test fixtures, remove raw-related test cases from parser, generator, and
integration tests, and add new test cases validating base64 handling
for Rust and Python templates.

* fix(plugins): update golden files and regenerate production code

Update golden test fixtures for codec and comprehensive services to
include base64 handling for []byte fields. Regenerate all production
PDK code (Go, Rust, Python) and host wrappers to use standard JSON
with base64-encoded byte fields instead of binary framing protocol.

* refactor: remove base64 helper duplication from rust template

Signed-off-by: Deluan <deluan@navidrome.org>

* fix(plugins): add base64 dependency to capabilities' Cargo.toml

Signed-off-by: Deluan <deluan@navidrome.org>

---------

Signed-off-by: Deluan <deluan@navidrome.org>
This commit is contained in:
Deluan Quintão
2026-02-27 19:00:19 -05:00
committed by GitHub
parent 582d1b3cd9
commit bd8032b327
36 changed files with 460 additions and 854 deletions
-113
View File
@@ -122,119 +122,6 @@ type TestService interface {
Expect(services[0].Methods[0].Name).To(Equal("Exported"))
})
It("should parse raw=true annotation", func() {
src := `package host
import "context"
//nd:hostservice name=Stream permission=stream
type StreamService interface {
//nd:hostfunc raw=true
GetStream(ctx context.Context, uri string) (contentType string, data []byte, err error)
}
`
err := os.WriteFile(filepath.Join(tmpDir, "stream.go"), []byte(src), 0600)
Expect(err).NotTo(HaveOccurred())
services, err := ParseDirectory(tmpDir)
Expect(err).NotTo(HaveOccurred())
Expect(services).To(HaveLen(1))
m := services[0].Methods[0]
Expect(m.Name).To(Equal("GetStream"))
Expect(m.Raw).To(BeTrue())
Expect(m.HasError).To(BeTrue())
Expect(m.Returns).To(HaveLen(2))
Expect(m.Returns[0].Name).To(Equal("contentType"))
Expect(m.Returns[0].Type).To(Equal("string"))
Expect(m.Returns[1].Name).To(Equal("data"))
Expect(m.Returns[1].Type).To(Equal("[]byte"))
})
It("should set Raw=false when raw annotation is absent", func() {
src := `package host
import "context"
//nd:hostservice name=Test permission=test
type TestService interface {
//nd:hostfunc
Call(ctx context.Context, uri string) (response string, err error)
}
`
err := os.WriteFile(filepath.Join(tmpDir, "test.go"), []byte(src), 0600)
Expect(err).NotTo(HaveOccurred())
services, err := ParseDirectory(tmpDir)
Expect(err).NotTo(HaveOccurred())
Expect(services[0].Methods[0].Raw).To(BeFalse())
})
It("should reject raw=true with invalid return signature", func() {
src := `package host
import "context"
//nd:hostservice name=Test permission=test
type TestService interface {
//nd:hostfunc raw=true
BadRaw(ctx context.Context, uri string) (result string, err error)
}
`
err := os.WriteFile(filepath.Join(tmpDir, "test.go"), []byte(src), 0600)
Expect(err).NotTo(HaveOccurred())
_, err = ParseDirectory(tmpDir)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("raw=true"))
Expect(err.Error()).To(ContainSubstring("must return (string, []byte, error)"))
})
It("should reject raw=true without error return", func() {
src := `package host
import "context"
//nd:hostservice name=Test permission=test
type TestService interface {
//nd:hostfunc raw=true
BadRaw(ctx context.Context, uri string) (contentType string, data []byte)
}
`
err := os.WriteFile(filepath.Join(tmpDir, "test.go"), []byte(src), 0600)
Expect(err).NotTo(HaveOccurred())
_, err = ParseDirectory(tmpDir)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("raw=true"))
})
It("should parse mixed raw and non-raw methods", func() {
src := `package host
import "context"
//nd:hostservice name=API permission=api
type APIService interface {
//nd:hostfunc
Call(ctx context.Context, uri string) (responseJSON string, err error)
//nd:hostfunc raw=true
CallRaw(ctx context.Context, uri string) (contentType string, data []byte, err error)
}
`
err := os.WriteFile(filepath.Join(tmpDir, "api.go"), []byte(src), 0600)
Expect(err).NotTo(HaveOccurred())
services, err := ParseDirectory(tmpDir)
Expect(err).NotTo(HaveOccurred())
Expect(services).To(HaveLen(1))
Expect(services[0].Methods).To(HaveLen(2))
Expect(services[0].Methods[0].Raw).To(BeFalse())
Expect(services[0].Methods[1].Raw).To(BeTrue())
Expect(services[0].HasRawMethods()).To(BeTrue())
})
It("should handle custom export name", func() {
src := `package host