/usr/share/pyshared/web/browser.py is in python-webpy 1:0.37+20120626-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 | """Browser to test web applications.
(from web.py)
"""
from utils import re_compile
from net import htmlunquote
import httplib, urllib, urllib2
import copy
from StringIO import StringIO
DEBUG = False
__all__ = [
"BrowserError",
"Browser", "AppBrowser",
"AppHandler"
]
class BrowserError(Exception):
pass
class Browser:
def __init__(self):
import cookielib
self.cookiejar = cookielib.CookieJar()
self._cookie_processor = urllib2.HTTPCookieProcessor(self.cookiejar)
self.form = None
self.url = "http://0.0.0.0:8080/"
self.path = "/"
self.status = None
self.data = None
self._response = None
self._forms = None
def reset(self):
"""Clears all cookies and history."""
self.cookiejar.clear()
def build_opener(self):
"""Builds the opener using urllib2.build_opener.
Subclasses can override this function to prodive custom openers.
"""
return urllib2.build_opener()
def do_request(self, req):
if DEBUG:
print 'requesting', req.get_method(), req.get_full_url()
opener = self.build_opener()
opener.add_handler(self._cookie_processor)
try:
self._response = opener.open(req)
except urllib2.HTTPError, e:
self._response = e
self.url = self._response.geturl()
self.path = urllib2.Request(self.url).get_selector()
self.data = self._response.read()
self.status = self._response.code
self._forms = None
self.form = None
return self.get_response()
def open(self, url, data=None, headers={}):
"""Opens the specified url."""
url = urllib.basejoin(self.url, url)
req = urllib2.Request(url, data, headers)
return self.do_request(req)
def show(self):
"""Opens the current page in real web browser."""
f = open('page.html', 'w')
f.write(self.data)
f.close()
import webbrowser, os
url = 'file://' + os.path.abspath('page.html')
webbrowser.open(url)
def get_response(self):
"""Returns a copy of the current response."""
return urllib.addinfourl(StringIO(self.data), self._response.info(), self._response.geturl())
def get_soup(self):
"""Returns beautiful soup of the current document."""
import BeautifulSoup
return BeautifulSoup.BeautifulSoup(self.data)
def get_text(self, e=None):
"""Returns content of e or the current document as plain text."""
e = e or self.get_soup()
return ''.join([htmlunquote(c) for c in e.recursiveChildGenerator() if isinstance(c, unicode)])
def _get_links(self):
soup = self.get_soup()
return [a for a in soup.findAll(name='a')]
def get_links(self, text=None, text_regex=None, url=None, url_regex=None, predicate=None):
"""Returns all links in the document."""
return self._filter_links(self._get_links(),
text=text, text_regex=text_regex, url=url, url_regex=url_regex, predicate=predicate)
def follow_link(self, link=None, text=None, text_regex=None, url=None, url_regex=None, predicate=None):
if link is None:
links = self._filter_links(self.get_links(),
text=text, text_regex=text_regex, url=url, url_regex=url_regex, predicate=predicate)
link = links and links[0]
if link:
return self.open(link['href'])
else:
raise BrowserError("No link found")
def find_link(self, text=None, text_regex=None, url=None, url_regex=None, predicate=None):
links = self._filter_links(self.get_links(),
text=text, text_regex=text_regex, url=url, url_regex=url_regex, predicate=predicate)
return links and links[0] or None
def _filter_links(self, links,
text=None, text_regex=None,
url=None, url_regex=None,
predicate=None):
predicates = []
if text is not None:
predicates.append(lambda link: link.string == text)
if text_regex is not None:
predicates.append(lambda link: re_compile(text_regex).search(link.string or ''))
if url is not None:
predicates.append(lambda link: link.get('href') == url)
if url_regex is not None:
predicates.append(lambda link: re_compile(url_regex).search(link.get('href', '')))
if predicate:
predicate.append(predicate)
def f(link):
for p in predicates:
if not p(link):
return False
return True
return [link for link in links if f(link)]
def get_forms(self):
"""Returns all forms in the current document.
The returned form objects implement the ClientForm.HTMLForm interface.
"""
if self._forms is None:
import ClientForm
self._forms = ClientForm.ParseResponse(self.get_response(), backwards_compat=False)
return self._forms
def select_form(self, name=None, predicate=None, index=0):
"""Selects the specified form."""
forms = self.get_forms()
if name is not None:
forms = [f for f in forms if f.name == name]
if predicate:
forms = [f for f in forms if predicate(f)]
if forms:
self.form = forms[index]
return self.form
else:
raise BrowserError("No form selected.")
def submit(self, **kw):
"""submits the currently selected form."""
if self.form is None:
raise BrowserError("No form selected.")
req = self.form.click(**kw)
return self.do_request(req)
def __getitem__(self, key):
return self.form[key]
def __setitem__(self, key, value):
self.form[key] = value
class AppBrowser(Browser):
"""Browser interface to test web.py apps.
b = AppBrowser(app)
b.open('/')
b.follow_link(text='Login')
b.select_form(name='login')
b['username'] = 'joe'
b['password'] = 'secret'
b.submit()
assert b.path == '/'
assert 'Welcome joe' in b.get_text()
"""
def __init__(self, app):
Browser.__init__(self)
self.app = app
def build_opener(self):
return urllib2.build_opener(AppHandler(self.app))
class AppHandler(urllib2.HTTPHandler):
"""urllib2 handler to handle requests using web.py application."""
handler_order = 100
def __init__(self, app):
self.app = app
def http_open(self, req):
result = self.app.request(
localpart=req.get_selector(),
method=req.get_method(),
host=req.get_host(),
data=req.get_data(),
headers=dict(req.header_items()),
https=req.get_type() == "https"
)
return self._make_response(result, req.get_full_url())
def https_open(self, req):
return self.http_open(req)
try:
https_request = urllib2.HTTPHandler.do_request_
except AttributeError:
# for python 2.3
pass
def _make_response(self, result, url):
data = "\r\n".join(["%s: %s" % (k, v) for k, v in result.header_items])
headers = httplib.HTTPMessage(StringIO(data))
response = urllib.addinfourl(StringIO(result.data), headers, url)
code, msg = result.status.split(None, 1)
response.code, response.msg = int(code), msg
return response
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