After a lot of searching I have yet to find a way to sign a BlackBerry application on a Linux distribution with no GUI.
As of right now I'm getting the error "Unable to request signatures until this application has completed the initial key generation.". The problem is I'm not able to register the CSI files it seems via CLI. Has anyone accomplished this without setting up X11?
Yes, its definitely possible to do this on a headless Linux box. Heck, I do it on a headless Solaris/UltraSPARC server :-)
For actually running the tool, I like http://bb-ant-tools.sf.net/ . If you are using an older version of the signature tool, you may need to make some modifications as described on http://slashdev.ca/ .
While the tool is fully controllable from command-line parameters, it does unfortunately still require access to a running X server to function. The workaround for this is to install "Xvfb" (a fake X server for purposes like this), launch it in the background on your system, then set the DISPLAY variable so the signature tool will use it for its non-interactive GUI.
Blackberry sigtool may not be supported in Linux and it may be only partially working. BB dev tools are still Windows-centric.
Related
I am trying to implement remote desktop server using libvnc, I have downloaded the libvnc and build the library and able to run sample code. And in the example code I can see the function rfbGetScreen http://libvnc.github.io/doc/html/libvncserver_doc.html which display plain background not the desktop. Does that mean I have to find some other library to get desktop and share using vnc, or vnc has some inbuilt function to do this.
it does seem so. You need to put into rfbScreenInfoPtr::framebuffer screenshots. I've never saw any inbuilt functions yet. May be I've poorly searched.
Try SDL2. May be it will help.
I am creating a custom protocol handler for Google Chrome on Linux. My link looks like this:
Trigger my app with param
I have noticed that if 'myprotocol:' is not registered (my app not installed), Google Chrome on Linux displays "External Protocol Request" dialog and tries to use xdg-open:
While on other OS, such as Windows 10 and OS X El Capitan nothing is displayed if protocol is not registered.
I have also verified that Firefox works consistently for unknown protocols on Windows, OS X and Linux - nothing is displayed.
Chrome behavior on Linux is quite confusing for users.
Any idea why Chrome on Linux (I was testing on Ubuntu 14.04) acts differently from any other OS and web browsers?
The issue is really that if Chrome lacks a local protocol handler then it wants to use the handler configured in the user's environment. No two OSes provide exactly the same API to launch a default handler. Figuring out what this program would be before actually launching it is not even a clear API on Windows or Linux.
Both the "Mac" and Windows implementations end up knowing which external application is ultimately responsible for the protocol and therefore are able to suppress unhandled calls without issuing a call warning. But the windows implementation is actually a kludge that relies on observations of the windows registry on existing versions on windows. This type of API violation is more dangerous on Linux where many flavors have very different forks of the related settings tools.
It is actually considered a bug that Windows and OsX don't issue an alternate warning that they've called nothing, so you may want to comment here if you think that is the right behavior.
Here is my observation of how the 3 systems work based on the current source:
Linux
In Linux, when you register protocol handlers with the (window) system, you do something like:
xdg-settings set default-url-scheme-handler myprotocol evolution.desktop
Now, the application evolution is responsible for your protocol and anything can call:
xdg-open myprotocol:...
To now open evolution on these links. The other OSes have similar mechanisms, but may not have an external program as the call stub.
This is nice and abstract and knowing/saying the external app you are calling is xdg-open prevents much complication in the linux implementation. But it is not exactly the information the user probably wants. Getting that information would require using xdg-settings instead and risks being incorrect if there is or ever will be a way to conditionally override the default handler in some flavors of this system.
Windows
In the Windows handler, apparently you can just go snooping around in the registry and then make an educated guess as to what calling the api is going to actually do. Technically, chrome has to do this since the way it opens external programs is through a system API, so there is not an external stub like xdg-open to refer to in the warning.
Mac
In the "mac" handler, there is a proper API to ask about the app your specific URL will launch, so chrome does, then if the application name the empty string it can completely drop the call before generating the warning.
I would like to get the list of all webbrowsers installed using nodejs.
If possible on different OS like Windows,OSX and Linux.
For example, if Chrome is installed, I want to run it otherwise run Firefox or IE or Safari depending on the OS.
I can't find any module or internal function to get the webbrowsers.
Thanks in advance for your help.
This isn't possible because you are then saying you would be controlling a user's computer and what software it runs. If you are able to do that, then anyone could.
This assumes you are talking about general usage and not those in a closed and controlled environment, such as a group of users inside a company.
browser-launcher enable you to Detect, launch and stop browsers cross platform
I'm planing to make a web app which will allow you to have a Linux Terminal on a web page so that you can execute any command an get the response as if you were in front of your linux terminal.
I planed to use NodeJS as it is server side JavaScript, asynchronous and fast.
Also I saw this wich does exactly what i'm trying to do, I peeked in the source code, but didn't found something useful, I also analysed it with google chrome developer tools on the network tab, but there is absolutely nothing even while executing some commands and getting responses. How is this possible ? what technology do you think they used ?
So I wanted to get your advice, your experience in order to start it the right way.
I firstly decided to use NodeJS, but if there is another programming language or Framework more appropriate for this kind of application please let me know.
If you want a real terminal in the browser using node.js on the backend, you might give tty.js a try.
Alternatively you can use the pty.js module manually which is used by tty.js. Along with that, you could also use xterm for doing the browser-side terminal emulation.
I want to build a custom linux terminal that would deal with api's of certain websites directly from the terminal . Yes I know , Curl can do that too . But lets say the content of the website are now in your computer and the website is offline . Thus using this terminal I would like to access those contents and make changes to them .
Again this also can be done using the linux terminal , but I would like this terminal to be very specific and have its own syntax and semantics .
For example , the ruby terminal from which you can run various ruby code without actually compiling them .
Thus what books should I read and how should I go about it in building this ?
Making changes on a site (like this site) not only involves some HTML content, but also a lot of code that runs on web server side. This is what you can't replicate with curl and possibly with any reasonably small amount of work at all.
'Terminal' is probably a wrong word; it seems that you just want a command-line app, as opposed to a GUI or Web app.
Please try to describe a more specific scenario. Your question is currently too vague.
I liked "Kernel projects for Linux" by Gary Nutt. It will help you in learning the design of a shell, and how the shell interacts with the operating system.
Maybe to configure web server to respond to local HTTP queries and use console based web browser like elinks or lynx