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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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53
plugins/wasm-go/extensions/ai-proxy/provider/openai.go
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@@ -1,12 +1,13 @@
package provider
import (
"encoding/json"
"fmt"
"net/http"
"strings"
"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"
)
@@ -57,27 +58,31 @@ func (m *openaiProvider) GetProviderType() string {
}
func (m *openaiProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) (types.Action, error) {
m.config.handleRequestHeaders(m, ctx, apiName, log)
return types.ActionContinue, nil
}
func (m *openaiProvider) TransformRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, headers http.Header, log wrapper.Log) {
if m.customPath == "" {
switch apiName {
case ApiNameChatCompletion:
_ = util.OverwriteRequestPath(defaultOpenaiChatCompletionPath)
util.OverwriteRequestPathHeader(headers, defaultOpenaiChatCompletionPath)
case ApiNameEmbeddings:
ctx.DontReadRequestBody()
_ = util.OverwriteRequestPath(defaultOpenaiEmbeddingsPath)
util.OverwriteRequestPathHeader(headers, defaultOpenaiEmbeddingsPath)
}
} else {
_ = util.OverwriteRequestPath(m.customPath)
util.OverwriteRequestPathHeader(headers, m.customPath)
}
if m.customDomain == "" {
_ = util.OverwriteRequestHost(defaultOpenaiDomain)
util.OverwriteRequestHostHeader(headers, defaultOpenaiDomain)
} else {
_ = util.OverwriteRequestHost(m.customDomain)
util.OverwriteRequestHostHeader(headers, m.customDomain)
}
if len(m.config.apiTokens) > 0 {
_ = util.OverwriteRequestAuthorization("Bearer " + m.config.GetRandomToken())
util.OverwriteRequestAuthorizationHeader(headers, "Bearer "+m.config.GetApiTokenInUse(ctx))
}
_ = proxywasm.RemoveHttpRequestHeader("Content-Length")
return types.ActionContinue, nil
headers.Del("Content-Length")
}
func (m *openaiProvider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName, body []byte, log wrapper.Log) (types.Action, error) {
@@ -85,9 +90,13 @@ func (m *openaiProvider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName,
// We don't need to process the request body for other APIs.
return types.ActionContinue, nil
}
return m.config.handleRequestBody(m, m.contextCache, ctx, apiName, body, log)
}
func (m *openaiProvider) TransformRequestBody(ctx wrapper.HttpContext, apiName ApiName, body []byte, log wrapper.Log) ([]byte, error) {
request := &chatCompletionRequest{}
if err := decodeChatCompletionRequest(body, request); err != nil {
return types.ActionContinue, err
return nil, err
}
if m.config.responseJsonSchema != nil {
log.Debugf("[ai-proxy] set response format to %s", m.config.responseJsonSchema)
@@ -101,27 +110,5 @@ func (m *openaiProvider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName,
request.StreamOptions.IncludeUsage = true
}
}
if m.contextCache == nil {
if err := replaceJsonRequestBody(request, log); err != nil {
_ = util.SendResponse(500, "ai-proxy.openai.set_include_usage_failed", util.MimeTypeTextPlain, fmt.Sprintf("failed to replace request body: %v", err))
}
return types.ActionContinue, 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.openai.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.openai.insert_ctx_failed", util.MimeTypeTextPlain, fmt.Sprintf("failed to replace request body: %v", err))
}
}, log)
if err == nil {
return types.ActionPause, nil
}
return types.ActionContinue, err
return json.Marshal(request)
}