-
Notifications
You must be signed in to change notification settings - Fork 477
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
3 changed files
with
222 additions
and
2 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package provider | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "github.com/higress-group/proxy-wasm-go-sdk/proxywasm" | ||
| "github.com/higress-group/proxy-wasm-go-sdk/proxywasm/types" | ||
|
|
||
| "github.com/alibaba/higress/plugins/wasm-go/extensions/ai-proxy/util" | ||
| "github.com/alibaba/higress/plugins/wasm-go/pkg/wrapper" | ||
| ) | ||
|
|
||
| // githubProvider is the provider for GitHub OpenAI service. | ||
| const ( | ||
| githubDomain = "models.inference.ai.azure.com" | ||
| githubCompletionPath = "/chat/completions" | ||
| githubEmbeddingPath = "/embeddings" | ||
| ) | ||
|
|
||
| type githubProviderInitializer struct { | ||
| } | ||
|
|
||
| type githubProvider struct { | ||
| config ProviderConfig | ||
| contextCache *contextCache | ||
| } | ||
|
|
||
| func (m *githubProviderInitializer) ValidateConfig(config ProviderConfig) error { | ||
| if config.apiTokens == nil || len(config.apiTokens) == 0 { | ||
| return errors.New("no apiToken found in provider config") | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (m *githubProviderInitializer) CreateProvider(config ProviderConfig) (Provider, error) { | ||
| return &githubProvider{ | ||
| config: config, | ||
| contextCache: createContextCache(&config), | ||
| }, nil | ||
| } | ||
|
|
||
| func (m *githubProvider) GetProviderType() string { | ||
| return providerTypeGithub | ||
| } | ||
|
|
||
| func (m *githubProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, log wrapper.Log) (types.Action, error) { | ||
| if apiName != ApiNameChatCompletion && apiName != ApiNameEmbeddings { | ||
| return types.ActionContinue, errUnsupportedApiName | ||
| } | ||
| _ = util.OverwriteRequestHost(githubDomain) | ||
| if apiName == ApiNameChatCompletion { | ||
| _ = util.OverwriteRequestPath(githubCompletionPath) | ||
| } | ||
| if apiName == ApiNameEmbeddings { | ||
| _ = util.OverwriteRequestPath(githubEmbeddingPath) | ||
| } | ||
| _ = proxywasm.RemoveHttpRequestHeader("Accept-Encoding") | ||
| _ = proxywasm.RemoveHttpRequestHeader("Content-Length") | ||
| _ = proxywasm.ReplaceHttpRequestHeader("Authorization", m.config.GetRandomToken()) | ||
| // Delay the header processing to allow changing streaming mode in OnRequestBody | ||
| return types.HeaderStopIteration, nil | ||
| } | ||
|
|
||
| func (m *githubProvider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName, body []byte, log wrapper.Log) (types.Action, error) { | ||
| if apiName != ApiNameChatCompletion && apiName != ApiNameEmbeddings { | ||
| return types.ActionContinue, errUnsupportedApiName | ||
| } | ||
| if apiName == ApiNameChatCompletion { | ||
| return m.onChatCompletionRequestBody(ctx, body, log) | ||
| } | ||
| if apiName == ApiNameEmbeddings { | ||
| return m.onEmbeddingsRequestBody(ctx, body, log) | ||
| } | ||
| return types.ActionContinue, errUnsupportedApiName | ||
| } | ||
|
|
||
| func (m *githubProvider) onChatCompletionRequestBody(ctx wrapper.HttpContext, body []byte, log wrapper.Log) (types.Action, error) { | ||
| request := &chatCompletionRequest{} | ||
| if err := decodeChatCompletionRequest(body, request); err != nil { | ||
| return types.ActionContinue, err | ||
| } | ||
| if request.Model == "" { | ||
| return types.ActionContinue, errors.New("missing model in chat completion request") | ||
| } | ||
| // 映射模型 | ||
| mappedModel := getMappedModel(request.Model, m.config.modelMapping, log) | ||
| if mappedModel == "" { | ||
| return types.ActionContinue, errors.New("model becomes empty after applying the configured mapping") | ||
| } | ||
| ctx.SetContext(ctxKeyFinalRequestModel, mappedModel) | ||
| request.Model = mappedModel | ||
| return types.ActionContinue, replaceJsonRequestBody(request, log) | ||
| } | ||
|
|
||
| func (m *githubProvider) onEmbeddingsRequestBody(ctx wrapper.HttpContext, body []byte, log wrapper.Log) (types.Action, error) { | ||
| request := &embeddingsRequest{} | ||
| if err := json.Unmarshal(body, request); err != nil { | ||
| return types.ActionContinue, fmt.Errorf("unable to unmarshal request: %v", err) | ||
| } | ||
| if request.Model == "" { | ||
| return types.ActionContinue, errors.New("missing model in embeddings request") | ||
| } | ||
| // 映射模型 | ||
| mappedModel := getMappedModel(request.Model, m.config.modelMapping, log) | ||
| if mappedModel == "" { | ||
| return types.ActionContinue, errors.New("model becomes empty after applying the configured mapping") | ||
| } | ||
| ctx.SetContext(ctxKeyFinalRequestModel, mappedModel) | ||
| request.Model = mappedModel | ||
| return types.ActionContinue, replaceJsonRequestBody(request, log) | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters