1# Copyright (c) 2012 The Chromium Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5"""Class to control the Dlink Dir655 router."""
6
7import logging
8import time
9import urlparse
10
11import dynamic_ap_configurator
12import ap_spec
13from selenium.common.exceptions import TimeoutException as \
14    SeleniumTimeoutException
15
16
17class DLinkDIR655APConfigurator(
18        dynamic_ap_configurator.DynamicAPConfigurator):
19    """Derived class to control the DLink DIR-655."""
20    first_login = True
21
22    def _alert_handler(self, alert):
23        """Checks for any modal dialogs which popup to alert the user and
24        either raises a RuntimeError or ignores the alert.
25
26        Args:
27          alert: The modal dialog's contents.
28        """
29        text = alert.text
30        if 'Password Invalid' in text:
31            alert.accept()
32        elif 'Nothing has changed, save anyway?' in text:
33            alert.accept()
34        elif 'Mode to 802.11n only, while there is an SSID with WEP' in text:
35            alert.accept()
36            raise RuntimeError('Security modes are not compatible: %s' % text)
37        elif 'The Radius Server 1 can not be zero.' in text:
38            alert.accept()
39            raise RuntimeError('Invalid configuration, alert message:\n%s'
40                               % text)
41        elif 'The length of the Passphrase must be at least' in text:
42            alert.accept()
43            raise RuntimeError('Invalid configuration, alert message:\n%s'
44                               % text)
45        elif 'Invalid password, please try again' in text:
46            alert.accept()
47            if self.first_login:
48                self.first_login = False
49                self.login_to_ap()
50        else:
51            alert.accept()
52            raise RuntimeError('We have an unhandled alert: %s' % text)
53
54
55    def get_number_of_pages(self):
56        return 1
57
58
59    def is_update_interval_supported(self):
60        """
61        Returns True if setting the PSK refresh interval is supported.
62
63        @return True is supported; False otherwise
64        """
65        return True
66
67
68    def get_supported_bands(self):
69        return [{'band': ap_spec.BAND_2GHZ,
70                 'channels': [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]}]
71
72
73    def get_supported_modes(self):
74        return [{'band': ap_spec.BAND_2GHZ,
75                 'modes': [ap_spec.MODE_B, ap_spec.MODE_G, ap_spec.MODE_N,
76                           ap_spec.MODE_B | ap_spec.MODE_G,
77                           ap_spec.MODE_G | ap_spec.MODE_N,
78                           ap_spec.MODE_B | ap_spec.MODE_G | ap_spec.MODE_N]}]
79
80
81    def is_security_mode_supported(self, security_mode):
82        """
83        Returns if a given security_type is supported.
84
85        @param security_mode: one security modes defined in the APSpec
86
87        @return True if the security mode is supported; False otherwise.
88
89        """
90        return security_mode in (ap_spec.SECURITY_TYPE_DISABLED,
91                                 ap_spec.SECURITY_TYPE_WEP,
92                                 ap_spec.SECURITY_TYPE_WPAPSK,
93                                 ap_spec.SECURITY_TYPE_WPA2PSK)
94
95
96    def navigate_to_page(self, page_number):
97        """
98        Navigates to the page corresponding to the given page number.
99
100        This method performs the translation between a page number and a url to
101        load. This is used internally by apply_settings.
102
103        @param page_number: page number of the page to load
104
105        """
106        # All settings are on the same page, so we always open the config page
107        page_url = urlparse.urljoin(self.admin_interface_url, 'wireless.asp')
108        self.get_url(page_url, page_title='D-LINK CORPORATION')
109        # We wait for the page to load and avoid the intermediate page
110        found_id = self.wait_for_objects_by_id(['w_enable', 'log_pass'],
111                                               wait_time=30)
112        if 'log_pass' in found_id:
113            self.login_to_ap()
114        elif 'w_enable' not in found_id:
115            raise Exception(
116                    'Unable to navigate to login or configuration page.')
117
118
119    def login_to_ap(self):
120        """Logs into the AP."""
121        self.set_content_of_text_field_by_id('password', 'log_pass')
122        self.click_button_by_id('login', alert_handler=self._alert_handler)
123        # This will send us to the landing page and not where we want to go.
124        page_url = urlparse.urljoin(self.admin_interface_url, 'wireless.asp')
125        self.get_url(page_url, page_title='D-LINK CORPORATION')
126
127
128    def save_page(self, page_number):
129        """
130        Saves the given page.
131
132        @param page_number: Page number of the page to save.
133
134        """
135        # All settings are on the same page, we can ignore page_number
136        self.click_button_by_id('button', alert_handler=self._alert_handler)
137        # Give the router a minute to update.
138        for i in xrange(120):
139            progress_value = self.wait_for_object_by_id('show_sec')
140            html = self.driver.execute_script('return arguments[0].innerHTML',
141                                              progress_value)
142            time.sleep(0.5)
143            if int(html) == 0:
144                break
145        self.click_button_by_id('button', alert_handler=self._alert_handler)
146        self.wait_for_object_by_id('w_enable')
147
148
149    def set_mode(self, mode, band=None):
150        # Mode overrides the band.  So if a band change is made after a mode
151        # change it may make an incompatible pairing.
152        self.add_item_to_command_list(self._set_mode, (mode, band), 1, 800)
153
154
155    def _set_mode(self, mode, band=None):
156        # Create the mode to popup item mapping
157        mode_mapping = {ap_spec.MODE_B: '802.11b only',
158            ap_spec.MODE_G: '802.11g only',
159            ap_spec.MODE_N: '802.11n only',
160            ap_spec.MODE_B | ap_spec.MODE_G: 'Mixed 802.11g and 802.11b',
161            ap_spec.MODE_N | ap_spec.MODE_G: 'Mixed 802.11n and 802.11g',
162            ap_spec.MODE_N | ap_spec.MODE_G | ap_spec.MODE_B:
163            'Mixed 802.11n, 802.11g and 802.11b'}
164        if mode in mode_mapping.keys():
165            popup_value = mode_mapping[mode]
166        else:
167            raise SeleniumTimeoutException('The mode selected %s is not '
168                                           'supported by router %s.' %
169                                           (hex(mode), self.name))
170        # When we change to an N based mode another popup is displayed.  We need
171        # to wait for the before proceeding.
172        wait_for_xpath = 'id("show_ssid")'
173        if mode & ap_spec.MODE_N == ap_spec.MODE_N:
174            wait_for_xpath = 'id("11n_protection")'
175        self.select_item_from_popup_by_id(popup_value, 'dot11_mode',
176                                          wait_for_xpath=wait_for_xpath)
177
178
179    def set_radio(self, enabled=True):
180        # If we are enabling we are activating all other UI components, do
181        # it first. Otherwise we are turning everything off so do it last.
182        if enabled:
183            weight = 1
184        else:
185            weight = 1000
186        self.add_item_to_command_list(self._set_radio, (enabled,), 1, weight)
187
188
189    def _set_radio(self, enabled=True):
190        # The radio checkbox for this router always has a value of 1. So we need
191        # to use other methods to determine if the radio is on or not. Check if
192        # the ssid textfield is disabled.
193        ssid = self.driver.find_element_by_id('show_ssid')
194        checkbox = self.driver.find_element_by_id('w_enable')
195        if ssid.get_attribute('disabled') == 'true':
196            radio_enabled = False
197        else:
198            radio_enabled = True
199        if radio_enabled == enabled:
200            # Nothing to do
201            return
202        self.set_check_box_selected_by_id('w_enable', selected=False,
203            wait_for_xpath='id("wep_type")')
204
205
206    def set_ssid(self, ssid):
207        # Can be done as long as it is enabled
208        self.add_item_to_command_list(self._set_ssid, (ssid,), 1, 900)
209
210
211    def _set_ssid(self, ssid):
212        self._set_radio(enabled=True)
213        self.set_content_of_text_field_by_id(ssid, 'show_ssid')
214        self._ssid = ssid
215
216
217    def set_channel(self, channel):
218        self.add_item_to_command_list(self._set_channel, (channel,), 1, 900)
219
220
221    def _set_channel(self, channel):
222        position = self._get_channel_popup_position(channel)
223        self._set_radio(enabled=True)
224        channel_choices = ['2.412 GHz - CH 1 ', '2.417 GHz - CH 2',
225                           '2.422 GHz - CH 3', '2.427 GHz - CH 4',
226                           '2.432 GHz - CH 5', '2.437 GHz - CH 6',
227                           '2.442 GHz - CH 7', '2.447 GHz - CH 8',
228                           '2.452 GHz - CH 9', '2.457 GHz - CH 10',
229                           '2.462 GHz - CH 11']
230        channel_popup = self.driver.find_element_by_id('sel_wlan0_channel')
231        if channel_popup.get_attribute('disabled') == 'true':
232            self.set_check_box_selected_by_id('auto_channel', selected=False)
233        self.select_item_from_popup_by_id(channel_choices[position],
234                                          'sel_wlan0_channel')
235
236
237    def set_band(self, band):
238        logging.debug('This router (%s) does not support multiple bands.',
239                      self.name)
240        return None
241
242
243    def set_security_disabled(self):
244        self.add_item_to_command_list(self._set_security_disabled, (), 1, 900)
245
246
247    def _set_security_disabled(self):
248        self._set_radio(enabled=True)
249        self.select_item_from_popup_by_id('None', 'wep_type')
250
251
252    def set_security_wep(self, key_value, authentication):
253        self.add_item_to_command_list(self._set_security_wep,
254                                      (key_value, authentication), 1, 900)
255
256
257    def _set_security_wep(self, key_value, authentication):
258        self._set_radio(enabled=True)
259        self.select_item_from_popup_by_id('WEP', 'wep_type',
260                                          wait_for_xpath='id("key1")')
261        self.select_item_from_popup_by_id(authentication, 'auth_type',
262                                          wait_for_xpath='id("key1")')
263        self.set_content_of_text_field_by_id(key_value, 'key1')
264
265
266    def set_security_wpapsk(self, security, shared_key, update_interval=1800):
267        self.add_item_to_command_list(self._set_security_wpapsk,
268                                      (security, shared_key, update_interval),
269                                       1, 900)
270
271
272    def _set_security_wpapsk(self, security, shared_key, update_interval=1800):
273        self._set_radio(enabled=True)
274        self.select_item_from_popup_by_id('WPA-Personal', 'wep_type',
275            wait_for_xpath='id("wlan0_gkey_rekey_time")')
276        if security == ap_spec.SECURITY_TYPE_WPAPSK:
277            wpa_item = 'WPA Only'
278        else:
279            wpa_item = 'WPA2 Only'
280        self.select_item_from_popup_by_id(wpa_item, 'wpa_mode',
281             wait_for_xpath='id("wlan0_psk_pass_phrase")')
282        self.set_content_of_text_field_by_id(str(update_interval),
283                                             'wlan0_gkey_rekey_time')
284        self.set_content_of_text_field_by_id(shared_key,
285                                             'wlan0_psk_pass_phrase')
286
287
288    def set_visibility(self, visible=True):
289        self.add_item_to_command_list(self._set_visibility, (visible,), 1, 900)
290
291
292    def _set_visibility(self, visible=True):
293        self._set_radio(enabled=True)
294        # value=1 is visible; value=0 is invisible
295        int_value = 1 if visible else 0
296        xpath = ('//input[@value="%d" '
297                 'and @name="wlan0_ssid_broadcast"]' % int_value)
298        self.click_button_by_xpath(xpath, alert_handler=self._alert_handler)
299