From d132b54db46ef64a8c7e300b79283747c79b3b9d Mon Sep 17 00:00:00 2001
From: Barbedouce <thomas.vuillermet@protonmail.com>
Date: Sat, 2 May 2020 18:02:46 +0200
Subject: [PATCH] initial commit

---
 w3spider.py | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 w3spider.py

diff --git a/w3spider.py b/w3spider.py
new file mode 100644
index 0000000..51413ac
--- /dev/null
+++ b/w3spider.py
@@ -0,0 +1,75 @@
+import json
+import sys
+import requests 
+from bs4 import BeautifulSoup
+import tempfile
+
+
+version = "0.1a"
+
+HTML_VALIDATOR_URL = "https://validator.w3.org/nu/?out=json"
+#CSS_VALIDATOR_URL = "http://jigsaw.w3.org/css-validator/validator"
+help = "w3spider"+version+"\n Usage : "+sys.argv[0]+" [TARGET URL] [0-9]\n This can take a while if you type high lvl of recursivity, or if there are a lot of errors in the target."
+
+
+
+
+def validate(filename, verbose=False): #send url to W3C and display messages 
+   is_remote = filename.startswith("http://") or filename.startswith("https://")
+   with tempfile.TemporaryFile() if is_remote else open(filename, "rb") as f:
+      if is_remote:
+         r = requests.get(filename, verify=False)
+         f.write(r.content)
+         f.seek(0)
+      r = requests.post(HTML_VALIDATOR_URL, files={"file": (filename, f, "text/html")}, data={"out": "json", "showsource": "yes"},verify=False)
+   result = r.json()
+   for msg in result['messages']:
+      msginline = "Ligne : "+str(msg['lastLine'])+" : "+msg['type'] +" "+ msg['message']
+      print (msginline)
+
+
+def spider(url): # search links and put them in waitlist
+  req = requests.get(url)
+  soup = BeautifulSoup(req.text, "lxml")
+  for link in soup.find_all('a',{"href":True}):
+    if link['href'].startswith(arg):
+       if link['href'] not in waitlist:
+          if link['href'].endswith(('.pdf','.jpeg','.png','.jpg')): # extension excluded
+             continue
+          else:
+             waitlist.append(link['href'])
+             print('new page found : ', link['href'])
+    if link['href'].startswith(('http','mailto','#')):
+          continue
+    else:
+          # if the link is not an anchor, not a mailto, not absolute, it may be relative link.
+          # let's transform it to absolute link :
+          link['href'] = arg +'/'+ link['href']	  
+          if link['href'] not in waitlist:
+            print('new page found : ', link['href'])
+            waitlist.append(link['href'])
+
+def validthemall(): # submit all the waitlist to w3c
+  for x in waitlist:
+      print('/'*14,'w3c :', x,'/'*14) 
+      validate(x)
+
+if __name__=="__main__":
+   if len(sys.argv) < 2:
+      print(help)
+   else:
+      arg = sys.argv[1]
+      if len(sys.argv) == 3:
+         lvl = int(sys.argv[2])
+      else:
+         lvl = 0
+      waitlist = [sys.argv[1]]
+      if lvl > 0:
+         print('/'*14,'Crawl :',arg,'with ', lvl,' level of recursivity.','/'*14)
+
+      for i in range(0,lvl):
+         for url in waitlist:
+           print('Searching new pages in :', url)
+           spider(url)
+
+      validthemall()