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fix: parse Gemini native request format in ParseGatewayRequest for correct session hash generation

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ParseGatewayRequest only parsed Anthropic format (system/messages),
ignoring Gemini native format (systemInstruction/contents). This caused
GenerateSessionHash to produce identical hashes for all Gemini sessions.

Add protocol parameter to ParseGatewayRequest to branch between
Anthropic and Gemini parsing. Update GenerateSessionHash message
traversal to extract text from both formats.
This commit is contained in:
erio
2026-02-09 06:47:22 +08:00
parent 5c76b9e45a
commit 35598d5648
8 changed files with 524 additions and 27 deletions
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5
backend/internal/handler/gateway_handler.go
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@@ -13,6 +13,7 @@ import (
"time"
"github.com/Wei-Shaw/sub2api/internal/config"
"github.com/Wei-Shaw/sub2api/internal/domain"
"github.com/Wei-Shaw/sub2api/internal/pkg/antigravity"
"github.com/Wei-Shaw/sub2api/internal/pkg/claude"
"github.com/Wei-Shaw/sub2api/internal/pkg/ctxkey"
@@ -114,7 +115,7 @@ func (h *GatewayHandler) Messages(c *gin.Context) {
setOpsRequestContext(c, "", false, body)
parsedReq, err := service.ParseGatewayRequest(body)
parsedReq, err := service.ParseGatewayRequest(body, domain.PlatformAnthropic)
if err != nil {
h.errorResponse(c, http.StatusBadRequest, "invalid_request_error", "Failed to parse request body")
return
@@ -939,7 +940,7 @@ func (h *GatewayHandler) CountTokens(c *gin.Context) {
setOpsRequestContext(c, "", false, body)
parsedReq, err := service.ParseGatewayRequest(body)
parsedReq, err := service.ParseGatewayRequest(body, domain.PlatformAnthropic)
if err != nil {
h.errorResponse(c, http.StatusBadRequest, "invalid_request_error", "Failed to parse request body")
return