282c145a43
- StackOverflowSource searches SE API v2.3 search/excerpts endpoint - RedditSource searches Reddit JSON API with custom User-Agent - HackerNewsSource searches Algolia HN API for comments - All credentialless, use ciLogKeyPattern for key detection - Tests use httptest mock servers with API key patterns
122 lines
3.0 KiB
Go
122 lines
3.0 KiB
Go
package sources
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import (
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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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"net/url"
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"time"
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"golang.org/x/time/rate"
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"github.com/salvacybersec/keyhunter/pkg/providers"
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"github.com/salvacybersec/keyhunter/pkg/recon"
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)
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// RedditSource searches Reddit's public JSON API for posts containing leaked
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// API keys. Developers frequently share code snippets with credentials in
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// subreddits like r/learnprogramming, r/openai, and r/machinelearning.
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type RedditSource struct {
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BaseURL string
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Registry *providers.Registry
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Limiters *recon.LimiterRegistry
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Client *Client
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}
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var _ recon.ReconSource = (*RedditSource)(nil)
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func (s *RedditSource) Name() string { return "reddit" }
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func (s *RedditSource) RateLimit() rate.Limit { return rate.Every(2 * time.Second) }
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func (s *RedditSource) Burst() int { return 2 }
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func (s *RedditSource) RespectsRobots() bool { return false }
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func (s *RedditSource) Enabled(_ recon.Config) bool { return true }
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// redditListingResponse represents the Reddit JSON API search response.
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type redditListingResponse struct {
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Data redditListingData `json:"data"`
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}
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type redditListingData struct {
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Children []redditChild `json:"children"`
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}
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type redditChild struct {
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Data redditPost `json:"data"`
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}
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type redditPost struct {
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Selftext string `json:"selftext"`
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Permalink string `json:"permalink"`
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Title string `json:"title"`
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}
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func (s *RedditSource) Sweep(ctx context.Context, _ string, out chan<- recon.Finding) error {
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base := s.BaseURL
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if base == "" {
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base = "https://www.reddit.com"
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}
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client := s.Client
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if client == nil {
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client = NewClient()
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}
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queries := BuildQueries(s.Registry, "reddit")
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if len(queries) == 0 {
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return nil
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}
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for _, q := range queries {
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if err := ctx.Err(); err != nil {
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return err
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}
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if s.Limiters != nil {
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if err := s.Limiters.Wait(ctx, s.Name(), s.RateLimit(), s.Burst(), false); err != nil {
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return err
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}
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}
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searchURL := fmt.Sprintf("%s/search.json?q=%s&sort=new&limit=25&restrict_sr=false",
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base, url.QueryEscape(q))
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req, err := http.NewRequestWithContext(ctx, http.MethodGet, searchURL, nil)
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if err != nil {
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continue
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}
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req.Header.Set("Accept", "application/json")
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// Reddit blocks requests with default User-Agent.
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req.Header.Set("User-Agent", "keyhunter-recon/1.0 (API key scanner)")
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resp, err := client.Do(ctx, req)
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if err != nil {
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continue
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}
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body, err := io.ReadAll(io.LimitReader(resp.Body, 256*1024))
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_ = resp.Body.Close()
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if err != nil {
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continue
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}
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var result redditListingResponse
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if err := json.Unmarshal(body, &result); err != nil {
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continue
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}
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for _, child := range result.Data.Children {
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if ciLogKeyPattern.MatchString(child.Data.Selftext) {
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postURL := fmt.Sprintf("https://www.reddit.com%s", child.Data.Permalink)
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out <- recon.Finding{
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ProviderName: q,
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Source: postURL,
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SourceType: "recon:reddit",
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Confidence: "medium",
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DetectedAt: time.Now(),
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}
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}
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}
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}
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return nil
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}
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