Files
sif/pkg/scan/js/frameworks/next.go
2024-10-15 02:32:48 +02:00

94 lines
3.5 KiB
Go

/*
╔══════════════════════════════════════════════════════════════════════════════╗
║ ║
║ SIF ║
║ ║
║ Blazing-fast pentesting suite written in Go ║
║ ║
║ Copyright (c) 2023-2024 vmfunc, xyzeva, lunchcat contributors ║
║ and other sif contributors. ║
║ ║
║ ║
║ Use of this tool is restricted to research and educational ║
║ purposes only. Usage in a production environment outside ║
║ of these categories is strictly prohibited. ║
║ ║
║ Any person or entity wishing to use this tool outside of ║
║ research or educational purposes must purchase a license ║
║ from https://lunchcat.dev ║
║ ║
║ For more information, visit: https://github.com/lunchcat/sif ║
║ ║
╚══════════════════════════════════════════════════════════════════════════════╝
*/
/*
What we are doing is abusing a internal file in Next.js pages router called
_buildManifest.js which lists all routes and script files ever referenced in
the application within next.js, this allows us to optimise and not bruteforce
directories for routes and instead get all of them at once.
We are currently parsing this js file with regexes but that should ideally be
replaced soon.
*/
package frameworks
import (
"bufio"
"fmt"
"net/http"
"regexp"
"strings"
urlutil "github.com/projectdiscovery/utils/url"
)
func GetPagesRouterScripts(scriptUrl string) ([]string, error) {
baseUrl, err := urlutil.Parse(scriptUrl)
if err != nil {
return nil, err
}
resp, err := http.Get(scriptUrl)
if err != nil {
fmt.Println(err)
return nil, err
}
defer resp.Body.Close()
var manifestText string
scanner := bufio.NewScanner(resp.Body)
scanner.Split(bufio.ScanLines)
for scanner.Scan() {
manifestText += scanner.Text()
}
regex, err := regexp.Compile("\\[(\"([^\"]+.js)\"(,?))")
if err != nil {
return nil, err
}
list := regex.FindAllStringSubmatch(manifestText, -1)
var scripts []string
for _, el := range list {
var script = strings.ReplaceAll(el[2], "\\u002F", "/")
url, err := urlutil.Parse(script)
if err != nil {
continue
}
if url.IsRelative {
url.Host = baseUrl.Host
url.Scheme = baseUrl.Scheme
url.Path = "/_next/" + url.Path
}
scripts = append(scripts, url.String())
}
return scripts, nil
}