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60 lines
2.2 KiB
Python
60 lines
2.2 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2014 Bastian Kleineidam
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""
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HTML form utils
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"""
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from ..htmlutil import htmlsoup
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from .. import log, LOG_CHECK
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class Form(object):
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"""Store HTML form URL and form data."""
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def __init__(self, url):
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"""Set URL and empty form data."""
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self.url = url
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self.data = {}
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def add_value(self, key, value):
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"""Add a form value."""
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self.data[key] = value
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def __repr__(self):
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"""Return string displaying URL and form data."""
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return "<url=%s data=%s>" % (self.url, self.data)
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def search_form(content, cgiuser, cgipassword):
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"""Search for a HTML form in the given HTML content that has the given
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CGI fields. If no form is found return None.
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"""
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soup = htmlsoup.make_soup(content)
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# The value of the name attribute is case-insensitive
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# https://www.w3.org/TR/html401/interact/forms.html#adef-name-INPUT
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cginames = {cgiuser.lower(), cgipassword.lower()}
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for form_element in soup.find_all("form", action=True):
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form = Form(form_element["action"])
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for input_element in form_element.find_all("input",
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attrs={"name": True}):
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form.add_value(
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input_element["name"], input_element.attrs.get("value"))
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if cginames <= {x.lower() for x in form.data}:
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log.debug(LOG_CHECK, "Found form %s", form)
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return form
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# not found
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log.debug(LOG_CHECK, "Form with fields %s not found", ",".join(cginames))
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return None
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