feat: support claude and gemini in vertex ai (#1621)

* feat: support claude and gemini in vertex ai

* fix: do not show api key field in channel page when the type is VertexAI

* fix: update getToken function to include channelId in cache key

relay/adaptor/vertexai/claude/adapter.go

@@ -0,0 +1,54 @@
+package vertexai
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/pkg/errors"
+	"github.com/songquanpeng/one-api/common/ctxkey"
+	"github.com/songquanpeng/one-api/relay/adaptor/anthropic"
+
+	"github.com/songquanpeng/one-api/relay/meta"
+	"github.com/songquanpeng/one-api/relay/model"
+)
+
+var ModelList = []string{
+	"claude-3-haiku@20240307", "claude-3-opus@20240229", "claude-3-5-sonnet@20240620", "claude-3-sonnet@20240229",
+}
+
+const anthropicVersion = "vertex-2023-10-16"
+
+type Adaptor struct {
+}
+
+func (a *Adaptor) ConvertRequest(c *gin.Context, relayMode int, request *model.GeneralOpenAIRequest) (any, error) {
+	if request == nil {
+		return nil, errors.New("request is nil")
+	}
+
+	claudeReq := anthropic.ConvertRequest(*request)
+	req := Request{
+		AnthropicVersion: anthropicVersion,
+		// Model:            claudeReq.Model,
+		Messages:         claudeReq.Messages,
+		MaxTokens:        claudeReq.MaxTokens,
+		Temperature:      claudeReq.Temperature,
+		TopP:             claudeReq.TopP,
+		TopK:             claudeReq.TopK,
+		Stream:           claudeReq.Stream,
+		Tools:            claudeReq.Tools,
+	}
+
+	c.Set(ctxkey.RequestModel, request.Model)
+	c.Set(ctxkey.ConvertedRequest, req)
+	return req, nil
+}
+
+func (a *Adaptor) DoResponse(c *gin.Context, resp *http.Response, meta *meta.Meta) (usage *model.Usage, err *model.ErrorWithStatusCode) {
+	if meta.IsStream {
+		err, usage = anthropic.StreamHandler(c, resp)
+	} else {
+		err, usage = anthropic.Handler(c, resp, meta.PromptTokens, meta.ActualModelName)
+	}
+	return
+}