[networking] Refactor module

modules/networking/w3c.py

@@ -0,0 +1,30 @@
+import json
+import urllib
+
+def validator(url):
+    """Run the w3c validator on the given URL
+
+    Argument:
+    url -- the URL to validate
+    """
+
+    o = urllib.parse.urlparse(url, "http")
+    if o.netloc == "":
+        o = urllib.parse.urlparse("http://" + url)
+    if o.netloc == "":
+        raise IRCException("Indiquer une URL valide !")
+
+    try:
+        req = urllib.request.Request("http://validator.w3.org/check?uri=%s&output=json" % (urllib.parse.quote(o.geturl())), headers={ 'User-Agent' : "nemubot v3" })
+        raw = urllib.request.urlopen(req, timeout=10)
+    except urllib.error.HTTPError as e:
+        raise IRCException("HTTP error occurs: %s %s" % (e.code, e.reason))
+
+    headers = dict()
+    for Hname, Hval in raw.getheaders():
+        headers[Hname] = Hval
+
+    if "X-W3C-Validator-Status" not in headers or (headers["X-W3C-Validator-Status"] != "Valid" and headers["X-W3C-Validator-Status"] != "Invalid"):
+        raise IRCException("Unexpected error on W3C servers" + (" (" + headers["X-W3C-Validator-Status"] + ")" if "X-W3C-Validator-Status" in headers else ""))
+
+    return headers, json.loads(raw.read().decode())