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 AXGate 1.1   
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AXGate overview
AXGate profiles and usage
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AXGate profiles and usage

AXGate profiles

This is part of the AXGate documentation included in newObjects Development Library (NDL). We recommend you download it in order to get the full information. There are also samples included with the component. It will be convenient for you to download the raw package if you are developer (it contains the DLL and the other files without installation) in order to be able to fetch the files from the archive on your desktop computer instead of searching the device for them. 

The AXGate keeps all its configuration in a single text file which must be located in the same directory where the DLL resides. It must be named AXGate.cfg. The sample file that comes with the component contains comments to remind you about the meaning of the settings - once you have read the documentation (note that using the change password sample will remove the comments). The configuration has two top level sections CONTROL which is reserved for future use and PROFILES which contains the profiles definitions. Each profile is defined in its own section. Here is a template section we will use for the description below it:

{ ProfileName:
  (string)Name=<Display name>
  (string)Default=<Default object>
    { ObjectName1:
       (string)File=<file full path>
    } ObjectName1;
    { ObjectName2:
    } ObjectName2;
    { ObjectName3:
      (string)File=<file full path>
    } ObjectName3;
    { ObjectName4:
    } ObjectName4;
    ........ and so on .........
} ProfileName;

The ProfileName can be any string you want. It must not contain ":" or ";" characters and <CR>, <LF> characters. This name is used by the script when it requests profile activation through the Profile property.

The most important setting for a profile is Access. The current version supports the following values:

0 - Default (if Access is omitted). The profile can be used from any source, the user is asked for a permission to activate it.
1 - The profile can be used from any source, the access is granted if the PassCode property matches the Password setting in the profile.
2 - The profile is allowed only if the page has been downloaded through one of the protocols listed in an AllowedProtocol option. At least one such option should exist - otherwise the profile is unusable. The user is asked for a permission to activate the profile.
3 - Like previous (2) but PassCode property must match the Password setting.
4 - The profile is allowed if the page has been downloaded from URL "under" on of the URL specified in an AllowedURL option. This means that the page URL must begin with one of URL specified in the AllowedURL options. The user is asked for a permission to activate the profile.
5 - Like previous (4), but the PassCode property must match the Password setting.

The Password setting is meaningful only for profiles with Access set to 1, 3 or 5.

The Name specifies the display name of the profile. This name is shown to the user when he/she is asked for a permission to activate the profile or when the "Access denied" message is shown in case of a profile with password protection.

The Description allows you specify one line (can be quite long) of description that helps the user decide what to do - allow or deny profile activation. Used in profiles with Access set to 0, 2, 4 and not used in password protected profiles (Access set to 1, 3, and 5).

The Default setting is optional. If present it specifies one of the classes listed in the Classes section - the name of the class or the pre-initialized objects. It allows the CreateObject method proceed without parameters or with empty string parameter. If called this way it will return the default object.

The CLASSES section

The regular entries for COM classes are like this:


You can specify the ProgID of the class you want to list or/and its ClassID. If ClassID is specified it will allow CreatObject to accept the ClassID UID string (like this one for instance: {06C9B1B5-13E5-4661-AE98-DFAB98C67AF1} ). However most of the developers are used to ProgID strings instead of ClassID so ProgID-s should be used unless there is a specific reason to use ClassID.

The entry must be set to 1 in order to allow object creation. You can set it to 0 if you want to disable the object without removing the entry (for example if you want to disable it temporarily).

The special pre-initialized objects

Version of AXGate supports 3 types of such objects. Each of them is specified in a section named after the name you want to use in CreateObject to obtain it. I.e. you will be able to obtain it when CreateObject is called with the section name you specified.


This is a SFStream object attached to a file explicitly specified by the setting:
(string)File=<file path>
File path must be full - for example: \My Documents\myfile.txt
If you want the file to be created if it does not exist yet instead of causing an error you can specify:
Also there are two more settings you can optionally put in the section:
Will open/create the file with exclusive access - no other application or script will be able to open it while it is in use.
If specified instead of Exclusive will allow other applications to read the file but not write it while you are using it.

When you obtain the object the file is positioned in the beginning. If you want to append it the first thing you do should be ofile.Pos=ofile.Size - position at the end of the file.


This is a SFStream attached to a temporary in-memory file.
The file is lost when the page is closed. Can be useful when transferring data from other sources.

OLE Storage

This is a SFStorage object attached to an OLE storage file explicitly specified by the setting:
(string)File=<file path>
File path must be full - for example: \My Documents\mystorage.stg
As like File you can use:
If you want the storage be created if it does not exist yet.
Must be specified in order this to work because of the platform limitations.

The OLE storages are a kind of a virtual file system maintained in a file. So the storage looks like single file in the device's file system, but internally it may contain sub-storages (sub-directories), streams (files) in a tree-like structure as like the device's file system. There are certain limitations - for example the sub-elements names must be up to 31 characters long and no more, but in general it allows the data to be stored in any convenient way.

SQLiteDB and SQLite3DB

Type can be one of these two:
For SQLite COM
For SQLite3 COM
The full path to a database file which will be automatically opened/created when the object is created.

The SQLite pre-initialized objects enable you to create profiles with something you can call default database - i.e. the database is opened with the object creation saving the page some work.

Using AXGate

The usage of the component is well illustrated in the samples packed with it. By default they are installed in My Documents\AXGate samples directory. You can download also the raw package which includes the samples as well. If you are installing AXGate manually please note that some examples may have the \My Documents\AXGate samples directory hardcoded in them - if you have problems check their source code and change it to match the location you are using.

A few words about the usage. In general there are two techniques depending on the profile(s) you intend to use. The profile with Access set to 0,2 and 4 require the user to permit the profile activation, while the others (1,3 and 5) expect the page to set the PassCode property before activating the profile.

The profile is activated by writing the profile name desired to the Profile property. When this is done before returning the control to the script 3 things may happen depending on the profile type - user is asked to permit the profile activation, PassCode is checked against the Password setting in the profile configuration or the access is implicitly denied if the profile requires the page to be fetched through a particular protocol or URL not matching the current page properties (the latter applies to the profiles with Access set to 2,3,4 and 5).

How to create the AXGate object?

You should use code like this:


It is recommended to place this outside any form in order to make it easier to access the object. If the declaration is as in the above sample code you can refer to AXGate using the axgate variable (corresponds to the ID attribute) after the page is completely loaded. Note that you cannot refer to the AXGate object while the page loads but is not yet finished so it is convenient to use BODY's onLoad event to initialize AXGate with certain profile. Of course, if your page is constructed in manner that permits you perform the initialization later (when user clicks something for example) you can do this later - in response to some other event.

Below we will assume that the above <OBJECT ...> exists somewhere in the page and we will only list the other sample code involved. We also assume for the sample purposes that ID of AXGate is "axgate" - you can name it otherwise, of course.

A typical code for user acknowledged profile looks like this:

var creator;
function InitProfile() {
  axgate.Profile = "FullAccess"; // We want the FullAccess standard profile.
  creator = axgate.CreateObject();
  var o = creator.CreateObject("Someobject.ProgID");
  // use o for something

Above we use also the "Default" feature which allows us call CreateObject without parameters and receive the default object. In the "FullAccess" profile it is the Pack1Creator from ActiveX Pack1 which in turn provides access to any registered COM class in the system and also to composite objects. This special feature of ActiveX Pack1 is handy here but if we want to use some restricted profile like FileAccess for instance we may write this:

var SFMain;
function InitProfile() {
  axgate.PassCode = "<the actual pass code>";
  axgate.Profile = "FileAccess"; // We want the FileAccess standard profile.
  SFMain = axgate.CreateObject("newObjects.utilctls.SFMain");
  // Open a file for example
  var file = SFMain.OpenFile("\myfile.txt");
  // Write something in there
  file.WriteText("Some text ...",1);
  ..... etc. .....

By the way - the FileAccess profile is password protected so we need to set the PassCode property before activating it. After that point everything is the same with any profile - we use axgate.CreateObject("someID") to produce objects from the profile. Do not forget that the technique in FullAccess profile is an exception benefiting of the Pack1Creator object - in general ProgID-s are used as parameters.

A little discussion. In the first case when you attempt to set the Profile property a dialog will pop-up to ask the user for permission to access the profile, while in the second sample the PassCode and the Password will be compared silently and access provided if they match. Of course placing the password in the source of the page is not a good idea especially if the page is downloaded from a random site. This can be convenient and secure for pages in the local file system but is not wise for online pages. Note that the standard profiles follow these considerations (review the AXGate.cfg). Still a password protected profile can be used quite securely online if the password is not in the page source. You can provide a field user must fill or use cookies or something else. For example if it is in a field you can do this:

axgate.PassCode = document.forms[0].PassCode.value;

Where the ID of the field is "PassCode" too. Of course, in such cases you should init the profile not on load but later when the user clicks some button for instance to confirm that he/she have entered something in the password field.

Do not forget that the profiles with Access set to 2,3,4 and 5 allow you restrict their usage for certain protocols or URL only. This allows you find the balance between security and convenience. The standard profiles are good for many things but not for everything, of course. When creating yours consider how secure are they.

For example if may want to collect information in a file and use the latest entries on the device for some references. Assume that later (in the end of the day/week) you transfer the collected information to the desktop for further processing, but still you want to implement more then just simple forms - for example you want to allow the user to review whatever entries he/she have collected today, search through them etc. You can do this using a flat file and a SFRecord object. Then you will need a File pre-initialized object (see in the above section) and a few other objects to perform other supporting operations. If the only access to the local file system is through this File pre-initialized object everything you expose is that file where you collect the data. Well even in case of intrusion the attacker will only destroy the content of the file. Well, but if the user has been collecting this information for a few days it will be quite a loss, depending on what kind of attacks you may expect (based on popularity, the information and other considerations outside the pure programming) you can decide what way to use. In general password protection will be ok - as long as the application on the device consists of one or more pages in the local file system,. So a profile with Access=3 will do - limit the protocols to file only and usage of password is safe enough (if someone manages to access the files of your applications and thus steal the password then something elsewhere is very wrong and it has nothing to do with your application, nor with AXGate). But, suppose you want something more - for example allow the user connect to your corporate site online and run some additional pages over the local data. the purpose of this can be some statistics, analysis you publish for the users that do this or the reason can be even more complex - allow the user select and submit entry or entries from the locally stored data to the server. This page is to be more secured than the locally residing pages. You should look at profiles with Access set to 4 or 5 then. You can specify there the local URL and the online URL thus restricting the profile usage to these two locations only. But still password or user acknowledgment? If the application rarely requires the user to navigate from page to page user interaction will not be too disturbing, but if not a password usage may be more convenient. If you manage to implement the online pages to fill the password from a parameter or a cookie set by the local pages it will be better - i.e. if it is possible to avoid putting the password into the page source and even the URL parameters it is good and secure if something prevents such solution better go the other way - user interaction.

Can I create the AXGate object directly?

Yes you can use:

var axgate = new ActiveXObject("newObjects.sandbox.AXGate");

This will even work outside IE (in CE version of IIS for instance), but it will prevent AXGate from knowing where the page came from which means that this technique should not be used in the typical area of application of AXGate - HTML pages. It will limit you to profiles with Access set to 0 and 1 only! If you use this technique in applications other than PIE consider what kind of profiles will be appropriate - for instance in IIS user acknowledgment will not be a good idea because a dialog will pop up every time a page is served. Why should one need AXGate in an ASP page or in a script? While this is not a specially targeted area AXGate can help in such scenarios as well. In Pocket PC the Javascript itself checks for the object safety and refuses to create unsafe objects even if the script runs in non-browser environment (in ASP page, in a scripting host, or another application that supports scripting). Thus with AXGate you can open such an application to more components. Note: If you use newObjects Micro Script Host application to run small scripts (ships with AXPack1 family and is also included with AXGate for completeness) you do not need AXGate in order to create objects, the hosts Host.CreateObject overcomes the system limitations on its own.

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