1b53ffcac7
Inject web search capability for Claude Console (API Key) accounts that don't natively support Anthropic's web_search tool. When a pure web_search request is detected, the gateway calls Brave Search or Tavily API directly and constructs an Anthropic-protocol-compliant SSE/JSON response without forwarding to upstream. Backend: - New `pkg/websearch/` SDK: Brave and Tavily provider implementations with io.LimitReader, proxy support, and Redis-based quota tracking (Lua atomic INCR + TTL, DECR rollback on failure) - Global config via `settings.web_search_emulation_config` (JSON) with in-process cache + singleflight, input validation, API key merge on save, and sanitized API responses - Channel-level toggle via `channels.features_config` JSONB column (DB migration 101) - Account-level toggle via `accounts.extra.web_search_emulation` - Request interception in `Forward()` with SSE streaming response construction using json.Marshal (no manual string concatenation) - Manager hot-reload: `RebuildWebSearchManager()` called on config save and startup via `SetWebSearchRedisClient()` - 70 unit tests covering providers, manager, config validation, sanitization, tool detection, query extraction, and response building Frontend: - Settings → Gateway tab: Web Search Emulation config card with global toggle, provider list (add/remove, API key, priority, quota, proxy) - Channels → Anthropic tab: web search emulation toggle with global state linkage (disabled when global off) - Account Create/Edit modals: web search emulation toggle for API Key type with Toggle component - Full i18n coverage (zh + en)
108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
package websearch
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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)
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const (
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tavilySearchEndpoint = "https://api.tavily.com/search"
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tavilyProviderName = "tavily"
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tavilySearchDepthBasic = "basic"
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)
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// TavilyProvider implements web search via the Tavily Search API.
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type TavilyProvider struct {
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apiKey string
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httpClient *http.Client
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}
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// NewTavilyProvider creates a Tavily Search provider.
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// The caller is responsible for configuring the http.Client with proxy/timeouts.
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func NewTavilyProvider(apiKey string, httpClient *http.Client) *TavilyProvider {
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if httpClient == nil {
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httpClient = http.DefaultClient
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}
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return &TavilyProvider{apiKey: apiKey, httpClient: httpClient}
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}
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func (t *TavilyProvider) Name() string { return tavilyProviderName }
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func (t *TavilyProvider) Search(ctx context.Context, req SearchRequest) (*SearchResponse, error) {
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maxResults := req.MaxResults
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if maxResults <= 0 {
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maxResults = defaultMaxResults
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}
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payload := tavilyRequest{
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APIKey: t.apiKey,
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Query: req.Query,
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MaxResults: maxResults,
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SearchDepth: tavilySearchDepthBasic,
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}
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bodyBytes, err := json.Marshal(payload)
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if err != nil {
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return nil, fmt.Errorf("tavily: encode request: %w", err)
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}
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httpReq, err := http.NewRequestWithContext(ctx, http.MethodPost, tavilySearchEndpoint, bytes.NewReader(bodyBytes))
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if err != nil {
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return nil, fmt.Errorf("tavily: build request: %w", err)
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}
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httpReq.Header.Set("Content-Type", "application/json")
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resp, err := t.httpClient.Do(httpReq)
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if err != nil {
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return nil, fmt.Errorf("tavily: request failed: %w", err)
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}
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defer resp.Body.Close()
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body, err := io.ReadAll(io.LimitReader(resp.Body, maxResponseSize))
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if err != nil {
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return nil, fmt.Errorf("tavily: read body: %w", err)
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}
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("tavily: status %d: %s", resp.StatusCode, truncateBody(body))
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}
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var raw tavilyResponse
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if err := json.Unmarshal(body, &raw); err != nil {
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return nil, fmt.Errorf("tavily: decode response: %w", err)
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}
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results := make([]SearchResult, 0, len(raw.Results))
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for _, r := range raw.Results {
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results = append(results, SearchResult{
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URL: r.URL,
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Title: r.Title,
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Snippet: r.Content,
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})
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}
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return &SearchResponse{Results: results, Query: req.Query}, nil
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}
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type tavilyRequest struct {
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APIKey string `json:"api_key"`
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Query string `json:"query"`
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MaxResults int `json:"max_results"`
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SearchDepth string `json:"search_depth"`
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}
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type tavilyResponse struct {
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Results []tavilyResult `json:"results"`
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}
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type tavilyResult struct {
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URL string `json:"url"`
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Title string `json:"title"`
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Content string `json:"content"`
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Score float64 `json:"score"`
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}
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