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68 lines
2.2 KiB
Go
68 lines
2.2 KiB
Go
package provider
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import (
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"errors"
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"net/http"
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"strings"
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"github.com/alibaba/higress/plugins/wasm-go/extensions/ai-proxy/util"
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"github.com/alibaba/higress/plugins/wasm-go/pkg/wrapper"
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"github.com/higress-group/proxy-wasm-go-sdk/proxywasm/types"
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)
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const (
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cloudflareDomain = "api.cloudflare.com"
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// https://developers.cloudflare.com/workers-ai/configuration/open-ai-compatibility/
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cloudflareChatCompletionPath = "/client/v4/accounts/{account_id}/ai/v1/chat/completions"
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)
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type cloudflareProviderInitializer struct {
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}
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func (c *cloudflareProviderInitializer) ValidateConfig(config *ProviderConfig) error {
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if config.apiTokens == nil || len(config.apiTokens) == 0 {
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return errors.New("no apiToken found in provider config")
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}
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return nil
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}
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func (c *cloudflareProviderInitializer) DefaultCapabilities() map[string]string {
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return map[string]string{
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string(ApiNameChatCompletion): cloudflareChatCompletionPath,
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}
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}
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func (c *cloudflareProviderInitializer) CreateProvider(config ProviderConfig) (Provider, error) {
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config.setDefaultCapabilities(c.DefaultCapabilities())
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return &cloudflareProvider{
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config: config,
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contextCache: createContextCache(&config),
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}, nil
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}
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type cloudflareProvider struct {
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config ProviderConfig
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contextCache *contextCache
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}
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func (c *cloudflareProvider) GetProviderType() string {
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return providerTypeCloudflare
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}
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func (c *cloudflareProvider) OnRequestHeaders(ctx wrapper.HttpContext, apiName ApiName) error {
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c.config.handleRequestHeaders(c, ctx, apiName)
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return nil
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}
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func (c *cloudflareProvider) OnRequestBody(ctx wrapper.HttpContext, apiName ApiName, body []byte) (types.Action, error) {
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if !c.config.isSupportedAPI(apiName) {
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return types.ActionContinue, errUnsupportedApiName
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}
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return c.config.handleRequestBody(c, c.contextCache, ctx, apiName, body)
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}
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func (c *cloudflareProvider) TransformRequestHeaders(ctx wrapper.HttpContext, apiName ApiName, headers http.Header) {
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util.OverwriteRequestPathHeader(headers, strings.Replace(cloudflareChatCompletionPath, "{account_id}", c.config.cloudflareAccountId, 1))
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util.OverwriteRequestHostHeader(headers, cloudflareDomain)
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util.OverwriteRequestAuthorizationHeader(headers, "Bearer "+c.config.GetApiTokenInUse(ctx))
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}
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