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e8863ed147
* feat: implement raw binary framing for host function responses Signed-off-by: Deluan <deluan@navidrome.org> * feat: add CallRaw method for Subsonic API to handle binary responses Signed-off-by: Deluan <deluan@navidrome.org> * test: add tests for raw=true methods and binary framing generation Signed-off-by: Deluan <deluan@navidrome.org> * fix: improve error message for malformed raw responses to indicate incomplete header Signed-off-by: Deluan <deluan@navidrome.org> * fix: add wasm_import_module attribute for raw methods and improve content-type handling Signed-off-by: Deluan <deluan@navidrome.org> --------- Signed-off-by: Deluan <deluan@navidrome.org>
67 lines
1.8 KiB
Plaintext
67 lines
1.8 KiB
Plaintext
// Code generated by ndpgen. DO NOT EDIT.
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//
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// This file contains client wrappers for the Stream host service.
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// It is intended for use in Navidrome plugins built with TinyGo.
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//
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//go:build wasip1
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package ndpdk
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import (
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"encoding/binary"
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"encoding/json"
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"errors"
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"github.com/navidrome/navidrome/plugins/pdk/go/pdk"
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)
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// stream_getstream is the host function provided by Navidrome.
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//
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//go:wasmimport extism:host/user stream_getstream
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func stream_getstream(uint64) uint64
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type streamGetStreamRequest struct {
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Uri string `json:"uri"`
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}
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// StreamGetStream calls the stream_getstream host function.
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// GetStream returns raw binary stream data with content type.
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func StreamGetStream(uri string) (string, []byte, error) {
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// Marshal request to JSON
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req := streamGetStreamRequest{
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Uri: uri,
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}
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reqBytes, err := json.Marshal(req)
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if err != nil {
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return "", nil, err
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}
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reqMem := pdk.AllocateBytes(reqBytes)
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defer reqMem.Free()
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// Call the host function
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responsePtr := stream_getstream(reqMem.Offset())
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// Read the response from memory
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responseMem := pdk.FindMemory(responsePtr)
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responseBytes := responseMem.ReadBytes()
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// Parse binary-framed response
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if len(responseBytes) == 0 {
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return "", nil, errors.New("empty response from host")
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}
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if responseBytes[0] == 0x01 { // error
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return "", nil, errors.New(string(responseBytes[1:]))
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}
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if responseBytes[0] != 0x00 {
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return "", nil, errors.New("unknown response status")
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}
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if len(responseBytes) < 5 {
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return "", nil, errors.New("malformed raw response: incomplete header")
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}
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ctLen := binary.BigEndian.Uint32(responseBytes[1:5])
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if uint32(len(responseBytes)) < 5+ctLen {
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return "", nil, errors.New("malformed raw response: content-type overflow")
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}
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return string(responseBytes[5 : 5+ctLen]), responseBytes[5+ctLen:], nil
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}
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