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feat: implement apiToken failover mechanism (#1256)

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This commit is contained in:
Se7en
2024-11-16 19:03:09 +08:00
committed by GitHub
parent f2a5df3949
commit d24123a55f
33 changed files with 1558 additions and 1231 deletions
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69
plugins/wasm-go/extensions/ai-proxy/provider/doubao.go
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@@ -2,12 +2,11 @@ package provider
import (
"errors"
"fmt"
"github.com/alibaba/higress/plugins/wasm-go/extensions/ai-proxy/util"
"github.com/alibaba/higress/plugins/wasm-go/pkg/wrapper"
"github.com/higress-group/proxy-wasm-go-sdk/proxywasm"
"github.com/higress-group/proxy-wasm-go-sdk/proxywasm/types"
"net/http"
"strings"
)
const (
@@ -41,17 +40,10 @@ func (m *doubaoProvider) GetProviderType() string {
}
func (m *doubaoProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) (types.Action, error) {
_ = util.OverwriteRequestHost(doubaoDomain)
_ = util.OverwriteRequestAuthorization("Bearer " + m.config.GetRandomToken())
_ = proxywasm.RemoveHttpRequestHeader("Content-Length")
if m.config.protocol == protocolOriginal {
ctx.DontReadRequestBody()
return types.ActionContinue, nil
}
if apiName != ApiNameChatCompletion {
return types.ActionContinue, errUnsupportedApiName
}
_ = util.OverwriteRequestPath(doubaoChatCompletionPath)
m.config.handleRequestHeaders(m, ctx, apiName, log)
return types.ActionContinue, nil
}
@@ -59,44 +51,19 @@ func (m *doubaoProvider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName,
if apiName != ApiNameChatCompletion {
return types.ActionContinue, errUnsupportedApiName
}
request := &chatCompletionRequest{}
if err := decodeChatCompletionRequest(body, request); err != nil {
return types.ActionContinue, err
}
model := request.Model
if model == "" {
return types.ActionContinue, errors.New("missing model in chat completion request")
}
mappedModel := getMappedModel(model, m.config.modelMapping, log)
if mappedModel == "" {
return types.ActionContinue, errors.New("model becomes empty after applying the configured mapping")
}
request.Model = mappedModel
if m.contextCache != nil {
err := m.contextCache.GetContent(func(content string, err error) {
defer func() {
_ = proxywasm.ResumeHttpRequest()
}()
if err != nil {
log.Errorf("failed to load context file: %v", err)
_ = util.SendResponse(500, "ai-proxy.doubao.load_ctx_failed", util.MimeTypeTextPlain, fmt.Sprintf("failed to load context file: %v", err))
}
insertContextMessage(request, content)
if err := replaceJsonRequestBody(request, log); err != nil {
_ = util.SendResponse(500, "ai-proxy.doubao.insert_ctx_failed", util.MimeTypeTextPlain, fmt.Sprintf("failed to replace request body: %v", err))
}
}, log)
if err == nil {
return types.ActionPause, nil
} else {
return types.ActionContinue, err
}
} else {
if err := replaceJsonRequestBody(request, log); err != nil {
_ = util.SendResponse(500, "ai-proxy.doubao.transform_body_failed", util.MimeTypeTextPlain, fmt.Sprintf("failed to replace request body: %v", err))
return types.ActionContinue, err
}
_ = proxywasm.ResumeHttpRequest()
return types.ActionPause, nil
}
return m.config.handleRequestBody(m, m.contextCache, ctx, apiName, body, log)
}
func (m *doubaoProvider) TransformRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, headers http.Header, log wrapper.Log) {
util.OverwriteRequestPathHeader(headers, doubaoChatCompletionPath)
util.OverwriteRequestHostHeader(headers, doubaoDomain)
util.OverwriteRequestAuthorizationHeader(headers, "Bearer "+m.config.GetApiTokenInUse(ctx))
headers.Del("Content-Length")
}
func (m *doubaoProvider) GetApiName(path string) ApiName {
if strings.Contains(path, doubaoChatCompletionPath) {
return ApiNameChatCompletion
}
return ""
}