Sakurasan
ef3025dd80
Major rewrite of the Go backend to support:
- Three API format imports: openai, anthropic, compatible
- Three protocol conversions: Chat Completions, Responses, Messages
- Hub-and-spoke architecture with Chat as intermediate format
Deleted:
- opencat.go (old entry)
- store/, team/, pkg/team/, pkg/store/ (old data layer)
- internal/model/, internal/consts/ (old types)
- internal/service/team/, internal/controller/team/ (old handlers)
- llm/ (removed LLM client library, pure proxy mode)
- dist/, assets/ (old build artifacts)
Added:
- internal/store/ — 9 GORM models + multi-DB support
- internal/pkg/ — crypto (AES-GCM), apikey, jwt, ratelimit, resp, tokenizer
- internal/channel/ — channel selection, weighted LB, health checks
- internal/proxy/convert/ — 6 protocol conversion functions + SSE streaming
- internal/proxy/ — gateway with request dispatch and upstream selection
- internal/usage/ — async usage recorder with batch writes
- internal/api/ — management API (auth, users, keys, channels, models)
- Makefile for build/test/deploy
Fixed API to match frontend expectations:
- Login response wraps token in { data: { token } }
- GET /api/profile route added
- Profile response wraps user in { code, data }
- Role returned as number (10=admin, 1=user)
109 lines
2.7 KiB
Go
109 lines
2.7 KiB
Go
package channel
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import (
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"context"
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"fmt"
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"opencatd-open/internal/dao"
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"opencatd-open/internal/store"
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"opencatd-open/internal/pkg/crypto"
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"net/http"
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"time"
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)
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type HealthChecker struct {
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channelDAO *dao.ChannelDAO
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service *Service
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client *http.Client
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}
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func NewHealthChecker(channelDAO *dao.ChannelDAO, service *Service) *HealthChecker {
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return &HealthChecker{
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channelDAO: channelDAO,
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service: service,
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client: &http.Client{
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Timeout: 10 * time.Second,
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},
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}
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}
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// CheckChannel performs a health check on a channel
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func (hc *HealthChecker) CheckChannel(ctx context.Context, channel *store.Channel) error {
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apiKey, err := crypto.Decrypt(channel.APIKeyEnc)
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if err != nil {
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return fmt.Errorf("failed to decrypt API key: %w", err)
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}
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// Simple health check: try to list models
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var url string
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switch channel.Provider {
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case store.ChannelProviderOpenAI:
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url = channel.UpstreamURL("chat", "/models")
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case store.ChannelProviderAnthropic:
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url = "https://api.anthropic.com/v1/models"
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default:
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url = channel.UpstreamURL("chat", "/models")
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}
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req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
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if err != nil {
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return fmt.Errorf("failed to create request: %w", err)
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}
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// Set headers based on provider
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switch channel.Provider {
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case store.ChannelProviderOpenAI, store.ChannelProviderCompatible:
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req.Header.Set("Authorization", "Bearer "+apiKey)
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case store.ChannelProviderAnthropic:
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req.Header.Set("x-api-key", apiKey)
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req.Header.Set("anthropic-version", "2023-06-01")
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}
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req.Header.Set("Content-Type", "application/json")
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resp, err := hc.client.Do(req)
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if err != nil {
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hc.service.RecordFailure(channel.ID)
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return fmt.Errorf("health check failed: %w", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode == http.StatusOK {
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hc.service.RecordSuccess(channel.ID)
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return nil
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}
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hc.service.RecordFailure(channel.ID)
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return fmt.Errorf("health check returned status %d", resp.StatusCode)
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}
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// CheckAllChannels checks health of all enabled channels
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func (hc *HealthChecker) CheckAllChannels(ctx context.Context) error {
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channels, err := hc.channelDAO.ListEnabled()
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if err != nil {
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return err
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}
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for _, ch := range channels {
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if err := hc.CheckChannel(ctx, ch); err != nil {
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fmt.Printf("Channel %s health check failed: %v\n", ch.Name, err)
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}
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}
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return nil
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}
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// StartPeriodicCheck starts periodic health checks
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func (hc *HealthChecker) StartPeriodicCheck(ctx context.Context, interval time.Duration) {
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ticker := time.NewTicker(interval)
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defer ticker.Stop()
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for {
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select {
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case <-ctx.Done():
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return
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case <-ticker.C:
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if err := hc.CheckAllChannels(ctx); err != nil {
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fmt.Printf("Periodic health check error: %v\n", err)
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}
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}
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}
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}
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