The widgets
===========

    version: 1
    Date:    30 mai 2016
    Author:  José Bollo

TABLE-OF-CONTENT-HERE

The widgets
-----------

The widgets are described by the technical recommendations
[widgets] and [widgets-digsig].

### signature 

The application framework 

This is the original part of our work here

### directory where are stored applications

Applications can be installed in different places: the system itself, extension device.
On a phone application are typically installed on the sd card.

This translates to:

 - /usr/applications: system wide applications
 - /opt/applications: removable applications

From here those paths are referenced as: "APPDIR".


Organization of directory of applications
=========================================

The main path for applications is: APPDIR/PKGID/VER.

Where:

 - APPDIR is as defined above
 - PKGID is a directory whose name is the package identifier
 - VER is the version of the package MAJOR.MINOR

This organization has the advantage to allow several versions to leave together.
This is needed for some good reasons (rolling back) and also for less good reasons (user habits).

Identity of installed files
---------------------------

All files are installed as user "userapp" and group "userapp".
All files have rw(x) for user and r-(x) for group and others.

This allows every user to read every file.


labeling the directories of applications
-----------------------------------------


organization of data
====================

The data of a user are in its directory and are labelled using the labels of the application

[meta-intel]:       https://github.com/01org/meta-intel-iot-security                "A collection of layers providing security technologies"
[widgets]:          http://www.w3.org/TR/widgets                                    "Packaged Web Apps"
[widgets-digsig]:   http://www.w3.org/TR/widgets-digsig                             "XML Digital Signatures for Widgets"
[libxml2]:          http://xmlsoft.org/html/index.html                              "libxml2"
[openssl]:          https://www.openssl.org                                         "OpenSSL"
[xmlsec]:           https://www.aleksey.com/xmlsec                                  "XMLSec"
[json-c]:           https://github.com/json-c/json-c                                "JSON-c"
[d-bus]:            http://www.freedesktop.org/wiki/Software/dbus                   "D-Bus"
[libzip]:           http://www.nih.at/libzip                                        "libzip"
[cmake]:            https://cmake.org                                               "CMake"
[security-manager]: https://wiki.tizen.org/wiki/Security/Tizen_3.X_Security_Manager "Security-Manager"
[app-manifest]:     http://www.w3.org/TR/appmanifest                                "Web App Manifest"
[tizen-security]:   https://wiki.tizen.org/wiki/Security                            "Tizen security home page"
[tizen-secu-3]:     https://wiki.tizen.org/wiki/Security/Tizen_3.X_Overview         "Tizen 3 security overview"