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https://github.com/postgres/pgweb.git
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99 lines
3.3 KiB
Python
Executable File
99 lines
3.3 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# localhtmlvalidate.py - validate local HTML for pgweb
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#
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# This is a small tool that you run to validate the HTML output of your
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# localhost pgweb installation against the W3C validator. Give it the
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# localhost:8000 URL (or other, depending on what port you're running the
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# local server on), and it will give you a list of possible issues with
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# the page.
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#
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# In theory it can be used just fine for non-pgweb pages as well, but
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# for obvious reasons the functionality to show the source line number
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# based on the pgweb templates won't work.
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#
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import sys
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import urllib
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import httplib
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import re
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import HTMLParser
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BOUNDARY = "-=--=foobar-=--="
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def encode_multipart_formdata(fields, files):
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L = []
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for (key, value) in fields:
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L.append('--' + BOUNDARY)
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L.append('Content-Disposition: form-data; name="%s"' % key)
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L.append('')
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L.append(value)
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for (key, filename, value) in files:
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L.append('--' + BOUNDARY)
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L.append('Content-Disposition: form-data; name="%s"; filename="%s"' % (key, filename))
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L.append('Content-Type: text/html')
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L.append('')
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L.append(value)
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L.append('--' + BOUNDARY + '--')
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L.append('')
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body = "\r\n".join(L)
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return body
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if __name__ == "__main__":
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if len(sys.argv) != 2:
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print("Usage: localhtmlvalidate.py <local url>")
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sys.exit(1)
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contents = urllib.urlopen(sys.argv[1]).read()
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# Try to figure out where the actual contents start :)
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try:
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firstline = contents.splitlines().index('<div id="pgContentWrap">')
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except ValueError:
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firstline = 0
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# Generate a form body
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body = encode_multipart_formdata(
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[
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('charset', 'utf-8'),
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('doctype', 'inline'),
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('group', '0'),
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('verbose', '1'),
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],
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[('uploaded_file', 'test.html', contents)]
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)
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# Now submit it to the w3c validator
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h = httplib.HTTP("validator.w3.org")
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h.putrequest("POST", "/check")
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h.putheader("User-Agent: localcheck-tester/0.0")
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h.putheader("content-type", "multipart/form-data; boundary=%s" % BOUNDARY)
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h.putheader("content-length", str(len(body)))
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h.endheaders()
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h.send(body)
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errcode, errmsg, headers = h.getreply()
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rbody = h.getfile().read()
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if headers['x-w3c-validator-status'] == 'Valid':
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print("Page validates!")
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sys.exit(0)
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elif headers['x-w3c-validator-status'] == 'Invalid':
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print("Invalid!")
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print("Errors: %s" % headers['x-w3c-validator-errors'])
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print("Warnings: %s" % headers['x-w3c-validator-warnings'])
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hp = HTMLParser.HTMLParser()
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for m in re.findall('<li class="msg_err">.*?</li>', rbody, re.DOTALL):
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r = re.search('<em>Line (\d+).*<span class="msg">(.*?)</span>', m, re.DOTALL)
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print("Line %s (should be around %s): %s" % (r.group(1), int(r.group(1)) - firstline, hp.unescape(r.group(2))))
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r2 = re.search('<code class="input">(.*?)<strong title=".*?">(.*?)</strong>(.*?)</code>', unicode(m, 'utf8'), re.DOTALL)
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if r2:
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s = "%s%s%s" % r2.groups()
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print("Source: %s" % hp.unescape(s).encode('utf-8'))
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print("")
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else:
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print("Unknown status: %s" % headers['x-w3c-validator-status'])
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print(headers)
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sys.exit(1)
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