[svn r58028] reverting 58009 - webcheck is actually used although not directly tested.

--HG--
branch : trunk

py/test/web/webcheck.py

@@ -0,0 +1,41 @@
+import py
+import re
+from exception import *
+from post_multipart import post_multipart
+#import css_checker
+
+def check_html(string):
+    """check an HTML string for wellformedness and validity"""
+    tempdir = py.test.ensuretemp('check_html')
+    filename = 'temp%s.html' % (hash(string), )
+    tempfile = tempdir.join(filename)
+    tempfile.write(string)
+    ret = post_multipart('validator.w3.org', '/check', [], 
+                [('uploaded_file', 'somehtml.html', string)])
+    is_valid = get_validation_result_from_w3_html(ret)
+    return is_valid
+
+reg_validation_result = re.compile('<td[^>]*class="(in)?valid"[^>]*>([^<]*)<',
+                                    re.M | re.S)
+def get_validation_result_from_w3_html(html):
+    match = reg_validation_result.search(html)
+    valid = match.group(1) is None
+    text = match.group(2).strip()
+    if not valid:
+        temp = py.test.ensuretemp('/w3_results_%s.html' % hash(html), dir=0)
+        temp.write(html)
+        raise HTMLError(
+            "The html is not valid. See the report file at '%s'" % temp)
+    return valid
+
+#def check_css(string, basepath, htmlpath='/'):
+#    """check the CSS of an HTML string
+#    
+#        check whether an HTML string contains CSS rels, and if so check whether
+#        any classes defined in the HTML actually have a matching CSS selector 
+#    """
+#    c = css_checker.css_checker(string, basepath, htmlpath)
+#    # raises a CSSError when failing, this is done from the tester class to
+#    # allow being more verbose than just 'something went wrong'
+#    return c.check()
+