mirror of
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103 lines
3.2 KiB
Go
103 lines
3.2 KiB
Go
package dns
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import (
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"net/url"
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"github.com/pkg/errors"
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"github.com/projectdiscovery/gologger"
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"github.com/projectdiscovery/nuclei/v2/pkg/output"
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"github.com/projectdiscovery/nuclei/v2/pkg/protocols"
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"github.com/projectdiscovery/nuclei/v2/pkg/protocols/common/helpers/responsehighlighter"
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)
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var _ protocols.Request = &Request{}
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// ExecuteWithResults executes the protocol requests and returns results instead of writing them.
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func (request *Request) ExecuteWithResults(input string, metadata /*TODO review unused parameter*/, previous output.InternalEvent, callback protocols.OutputEventCallback) error {
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// Parse the URL and return domain if URL.
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var domain string
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if isURL(input) {
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domain = extractDomain(input)
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} else {
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domain = input
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}
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// Compile each request for the template based on the URL
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compiledRequest, err := request.Make(domain)
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if err != nil {
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request.options.Output.Request(request.options.TemplateID, domain, "dns", err)
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request.options.Progress.IncrementFailedRequestsBy(1)
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return errors.Wrap(err, "could not build request")
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}
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if request.options.Options.Debug || request.options.Options.DebugRequests {
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gologger.Info().Str("domain", domain).Msgf("[%s] Dumped DNS request for %s", request.options.TemplateID, domain)
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gologger.Print().Msgf("%s", compiledRequest.String())
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}
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// Send the request to the target servers
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resp, err := request.dnsClient.Do(compiledRequest)
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if err != nil {
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request.options.Output.Request(request.options.TemplateID, domain, "dns", err)
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request.options.Progress.IncrementFailedRequestsBy(1)
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}
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if resp == nil {
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return errors.Wrap(err, "could not send dns request")
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}
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request.options.Progress.IncrementRequests()
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request.options.Output.Request(request.options.TemplateID, domain, "dns", err)
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gologger.Verbose().Msgf("[%s] Sent DNS request to %s", request.options.TemplateID, domain)
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outputEvent := request.responseToDSLMap(compiledRequest, resp, input, input)
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for k, v := range previous {
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outputEvent[k] = v
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}
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event := createEvent(request, outputEvent)
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if request.options.Options.Debug || request.options.Options.DebugResponse {
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gologger.Debug().Msgf("[%s] Dumped DNS response for %s", request.options.TemplateID, domain)
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gologger.Print().Msgf("%s", responsehighlighter.Highlight(event.OperatorsResult, resp.String(), request.options.Options.NoColor))
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}
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callback(event)
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return nil
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}
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func createEvent(request *Request, outputEvent output.InternalEvent) *output.InternalWrappedEvent {
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event := &output.InternalWrappedEvent{InternalEvent: outputEvent}
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if request.CompiledOperators != nil {
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result, ok := request.CompiledOperators.Execute(outputEvent, request.Match, request.Extract)
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if ok && result != nil {
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event.OperatorsResult = result
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event.Results = request.MakeResultEvent(event)
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}
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}
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return event
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}
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// isURL tests a string to determine if it is a well-structured url or not.
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func isURL(toTest string) bool {
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if _, err := url.ParseRequestURI(toTest); err != nil {
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return false
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}
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u, err := url.Parse(toTest)
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if err != nil || u.Scheme == "" || u.Host == "" {
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return false
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}
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return true
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}
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// extractDomain extracts the domain name of a URL
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func extractDomain(theURL string) string {
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u, err := url.Parse(theURL)
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if err != nil {
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return ""
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}
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return u.Hostname()
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}
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