Class: GemGuard::VulnerabilityFetcher

Inherits:
Object
  • Object
show all
Defined in:
lib/gem_guard/vulnerability_fetcher.rb

Constant Summary collapse

OSV_API_URL = 
"https://api.osv.dev/v1/query"
RUBY_ADVISORY_DB_URL = 
"https://raw.githubusercontent.com/rubysec/ruby-advisory-db/master/gems"
GHSA_API_URL = 
"https://api.github.com/advisories"
NVD_API_URL = 
"https://services.nvd.nist.gov/rest/json/cves/2.0"
CU_ADVISORY_DB_URL = 
"https://github.com/curesec/curesec-advisory-db"

Instance Method Summary collapse

Instance Method Details

#fetch_for(dependencies) ⇒ Object 



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# File 'lib/gem_guard/vulnerability_fetcher.rb', line 14

def fetch_for(dependencies)
   = TTY::Spinner.new("[:spinner] Fetching vulnerabilities...", format: :pulse_2)
  .auto_spin

  vulnerabilities = []

  dependencies.each do |dependency|
    vulnerabilities.concat(fetch_osv_vulnerabilities(dependency))
    vulnerabilities.concat(fetch_ruby_advisory_vulnerabilities(dependency))
    vulnerabilities.concat(fetch_ghsa_vulnerabilities(dependency))
    vulnerabilities.concat(fetch_nvd_vulnerabilities(dependency))
    vulnerabilities.concat(fetch_cu_advisory_vulnerabilities(dependency))
  end

  # Deduplicate vulnerabilities by ID and gem name, merging affected/fixed versions
  deduplicated = {}
  vulnerabilities.each do |vuln|
    key = [vuln.id, vuln.gem_name]
    if deduplicated[key]
      # Merge affected and fixed versions from duplicate entries
      existing = deduplicated[key]
      merged_affected = (existing.affected_versions + vuln.affected_versions).uniq
      merged_fixed = (existing.fixed_versions + vuln.fixed_versions).uniq

      deduplicated[key] = Vulnerability.new(
        id: existing.id,
        gem_name: existing.gem_name,
        affected_versions: merged_affected,
        fixed_versions: merged_fixed,
        severity: existing.severity,
        summary: existing.summary,
        details: existing.details
      )
    else
      deduplicated[key] = vuln
    end
  end

  .success("Done.")

  deduplicated.values
end