spam-detection.yml

name: Suspicious Comment Detection

on:
  issue_comment:
    types: [created]
  pull_request_review_comment:
    types: [created]

jobs:
  check_comment:
    runs-on: ubuntu-latest
    steps:
      - name: Check for suspicious patterns
        uses: actions/github-script@v6
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            try {
              const comment = context.payload.comment;
              const body = comment.body.toLowerCase();
              const author = comment.user.login;
              
              // Suspicious patterns
              const suspiciousPatterns = [
                'support team',
                'customer service',
                'telegram',
                'whatsapp',
                'contact us',
                'click here',
                'support group',
                't.me/',
                'wa.me/',
                'support chat',
                'live chat',
                'support ticket',
                'ticket id',
                'live support',
                'support line',
                'support agent',
                'support network',
                'dedicated support',
                'personalized assistance',
                'opened for you',
                'kindly talk to',
                'we apologize',
                'live chat with an agent',
                'chat button',
                'dapp portal',
                'decentralized dapp',
                'access the portal',
                'report your request',
                'start a conversation',
                'click the chat',
                'for assistance',
                'reach out to',
                'through the chat',
                'portal',
                'help center',
                'ticket',
                'this will be review',
                'bringing this to our notice',
                'initiate a chat',
                'regards',
                'hello @',
                'thanks for bringing',
              ];
              
              // Add pattern weight scoring
              const patternWeights = {
                'ticket id': 2,
                'support team': 2,
                'live support': 2,
                'help center': 2,
                // Regular patterns have weight of 1
              };
              
              // Calculate spam score
              let spamScore = 0;
              const foundPatterns = suspiciousPatterns.filter(pattern => {
                if (body.includes(pattern)) {
                  spamScore += patternWeights[pattern] || 1;
                  return true;
                }
                return false;
              });
              
              // Check for external links (excluding common legitimate domains)
              const hasExternalLinks = body.includes('http') || body.includes('www');
              const hasGithubLinks = body.includes('github.com');
              const suspiciousLinks = hasExternalLinks && !hasGithubLinks;
              
              // Trigger on either multiple patterns or high spam score
              if (foundPatterns.length > 2 || spamScore >= 3) {
                try {
                  // Create a warning comment
                  await github.rest.issues.createComment({
                    owner: context.repo.owner,
                    repo: context.repo.repo,
                    issue_number: context.payload.issue ? context.payload.issue.number : context.payload.pull_request.number,
                    body: warningMessage
                  });
                } catch (e) {
                  console.log('Failed to create comment:', e);
                }
                
                try {
                  // Add 'potential-scam' label
                  await github.rest.issues.addLabels({
                    owner: context.repo.owner,
                    repo: context.repo.repo,
                    issue_number: context.payload.issue ? context.payload.issue.number : context.payload.pull_request.number,
                    labels: ['potential-scam']
                  });
                } catch (e) {
                  console.log('Failed to add label:', e);
                }
              }
            } catch (e) {
              console.log('Workflow error:', e);
              // Still mark as failure but with more context
              core.setFailed(`Workflow failed: ${e.message}`);
            }