sdxo#1143: "Hidden-SSIDs" feature.

Note that following are the UI changes from the earlier implementation:

* No explicit "Save" button.

   * Instead, the "tick" toolbar button will do this job (taking into proper
     considerations for the "Cancel Changes","Later" and "Restart" scenarios).
     This keeps it consistent with the rest of the sections in the "Network" panel.

* No explicit "Please reboot your XO to effect changes" message.

   * Instead the top-toolbar gives this message when the "tick" button is clicked.
     This keeps it consistent with the rest of the sections in the "Network" panel.

Following are the backend changes from the earlier implementation:

* The "iwconfig" network-scanning will now be done at "sugar" (re)start, instead of "system"" (re)start.
  This helps solve the following issues :

   * No startup terminal-text problems now.
   * No dependency on any external package ("z-sugar-hidden-network").
   * The "restart" notification in "My Settings" -> "Network", is now also consistent, as
     the restart here refers to "sugar" restart. Thus, "sugar" restart is what is now all
     that is needed to make the hidden wireless networks appear in the Neighborhood-View.

The only caveat: "sudo" must be available for the "olpc" user (without needing a password).

Signed-off-by: Ajay Garg <ajay@activitycentral.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/jarabe/journal/misc.py b/src/jarabe/journal/misc.py
index f627c1b..7831051 100644
--- a/src/jarabe/journal/misc.py
+++ b/src/jarabe/journal/misc.py
@@ -41,6 +41,7 @@ from jarabe.journal import model
 from jarabe.journal import journalwindow
 
 _NOT_AVAILABLE = _('Not available')
+HIDDEN_SSID_FILE = os.path.expanduser('~/.sugar/default/hidden_ssid')
 
 def _get_icon_for_mime(mime_type):
     generic_types = mime.get_all_generic_types()
@@ -358,3 +359,18 @@ def get_backup_identifier():
     if serial_number is _NOT_AVAILABLE:
         serial_number = get_nick()
     return serial_number
+
+
+def get_hidden_ssids():
+    ssids = []
+
+    # If the file does not exist, return.
+    if not os.path.exists(HIDDEN_SSID_FILE):
+        return ssids
+
+    f = open(HIDDEN_SSID_FILE, 'r')
+    for ssid in f.readlines():
+        ssids.append(ssid.rstrip('\n'))
+    f.close()
+
+    return ssids