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https://github.com/router-for-me/CLIProxyAPI.git
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9dc0e6d08b
When using Gemini API format with Antigravity backend, the executor renames usageMetadata to cpaUsageMetadata in non-terminal chunks. The Gemini translator was returning this internal field name directly to clients instead of the standard usageMetadata field. Add restoreUsageMetadata() to rename cpaUsageMetadata back to usageMetadata before returning responses to clients.
101 lines
4.4 KiB
Go
101 lines
4.4 KiB
Go
// Package gemini provides request translation functionality for Gemini to Gemini CLI API compatibility.
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// It handles parsing and transforming Gemini API requests into Gemini CLI API format,
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// extracting model information, system instructions, message contents, and tool declarations.
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// The package performs JSON data transformation to ensure compatibility
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// between Gemini API format and Gemini CLI API's expected format.
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package gemini
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import (
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"bytes"
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"context"
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"fmt"
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"github.com/tidwall/gjson"
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"github.com/tidwall/sjson"
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)
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// ConvertAntigravityResponseToGemini parses and transforms a Gemini CLI API request into Gemini API format.
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// It extracts the model name, system instruction, message contents, and tool declarations
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// from the raw JSON request and returns them in the format expected by the Gemini API.
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// The function performs the following transformations:
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// 1. Extracts the response data from the request
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// 2. Handles alternative response formats
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// 3. Processes array responses by extracting individual response objects
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//
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// Parameters:
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// - ctx: The context for the request, used for cancellation and timeout handling
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// - modelName: The name of the model to use for the request (unused in current implementation)
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// - rawJSON: The raw JSON request data from the Gemini CLI API
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// - param: A pointer to a parameter object for the conversion (unused in current implementation)
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//
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// Returns:
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// - []string: The transformed request data in Gemini API format
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func ConvertAntigravityResponseToGemini(ctx context.Context, _ string, originalRequestRawJSON, requestRawJSON, rawJSON []byte, _ *any) []string {
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if bytes.HasPrefix(rawJSON, []byte("data:")) {
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rawJSON = bytes.TrimSpace(rawJSON[5:])
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}
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if alt, ok := ctx.Value("alt").(string); ok {
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var chunk []byte
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if alt == "" {
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responseResult := gjson.GetBytes(rawJSON, "response")
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if responseResult.Exists() {
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chunk = []byte(responseResult.Raw)
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chunk = restoreUsageMetadata(chunk)
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}
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} else {
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chunkTemplate := "[]"
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responseResult := gjson.ParseBytes(chunk)
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if responseResult.IsArray() {
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responseResultItems := responseResult.Array()
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for i := 0; i < len(responseResultItems); i++ {
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responseResultItem := responseResultItems[i]
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if responseResultItem.Get("response").Exists() {
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chunkTemplate, _ = sjson.SetRaw(chunkTemplate, "-1", responseResultItem.Get("response").Raw)
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}
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}
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}
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chunk = []byte(chunkTemplate)
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}
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return []string{string(chunk)}
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}
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return []string{}
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}
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// ConvertAntigravityResponseToGeminiNonStream converts a non-streaming Gemini CLI request to a non-streaming Gemini response.
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// This function processes the complete Gemini CLI request and transforms it into a single Gemini-compatible
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// JSON response. It extracts the response data from the request and returns it in the expected format.
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//
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// Parameters:
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// - ctx: The context for the request, used for cancellation and timeout handling
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// - modelName: The name of the model being used for the response (unused in current implementation)
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// - rawJSON: The raw JSON request data from the Gemini CLI API
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// - param: A pointer to a parameter object for the conversion (unused in current implementation)
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//
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// Returns:
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// - string: A Gemini-compatible JSON response containing the response data
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func ConvertAntigravityResponseToGeminiNonStream(_ context.Context, _ string, originalRequestRawJSON, requestRawJSON, rawJSON []byte, _ *any) string {
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responseResult := gjson.GetBytes(rawJSON, "response")
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if responseResult.Exists() {
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chunk := restoreUsageMetadata([]byte(responseResult.Raw))
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return string(chunk)
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}
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return string(rawJSON)
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}
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func GeminiTokenCount(ctx context.Context, count int64) string {
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return fmt.Sprintf(`{"totalTokens":%d,"promptTokensDetails":[{"modality":"TEXT","tokenCount":%d}]}`, count, count)
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}
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// restoreUsageMetadata renames cpaUsageMetadata back to usageMetadata.
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// The executor renames usageMetadata to cpaUsageMetadata in non-terminal chunks
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// to preserve usage data while hiding it from clients that don't expect it.
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// When returning standard Gemini API format, we must restore the original name.
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func restoreUsageMetadata(chunk []byte) []byte {
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if cpaUsage := gjson.GetBytes(chunk, "cpaUsageMetadata"); cpaUsage.Exists() {
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chunk, _ = sjson.SetRawBytes(chunk, "usageMetadata", []byte(cpaUsage.Raw))
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chunk, _ = sjson.DeleteBytes(chunk, "cpaUsageMetadata")
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}
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return chunk
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}
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