Allows Javascript applications to read and write local files, through the use of a privileged applet.
This code has been derived from gitify.com, a 100% web based git client.
Some refer to this method as JAHA, in true four letter Web 2.0 fashion. windyroad.org/2006/08/14/reintroducing-javascript-and-hidden-applets-jaha/
<html>
<head>
</head>
<body>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script src="fileify.js"></script>
<script>
$(document).bind('fileifyready', function(){
var filename = "/tmp/test";
// Read a file
var result = Fileify.read(filename);
if (result["error"] == undefined){
console.log("Success: "+result["data"]);
}else{
console.log("Error: "+result["error"]);
}
// Overwrite a file
result = Fileify.write(filename, "Hello World");
if (result["error"] == undefined){
console.log("Success");
}else{
console.log("Failure: "+result["error"]);
}
});
</script>
</body>
</html>
In order to build fileify for your own site you’ll need git, Eclipse (3.5 or greater) and the Java 1.6 JDK.
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git clone github.com/mcolyer/fileify.git
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Launch eclipse
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From the File menu choose “Import” and then “Existing Projects into Workspace” and select the git checkout you made in step 1.
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Fix any library reference errors (I use Ubuntu to develop, so it’s likely the files moved if you aren’t using Ubuntu)
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Next you’ll need to create a keystore to sign the applet so it can run privileged.
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Use the following to generate the keystore: “keytool -genkeypair -alias fileify -keypass secret -storepass secret -validity 365” Answer the questions as prompted.
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You should now be able to right click the build.xml file in eclipse and build the all target.
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There should now be a fileify.jar in the root of the git checkout, which you can place in the root of your application.
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First fork the repository using github.
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Create a branch for your feature or fix with an appropriate name.
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Make your changes and create any relevant test cases (see tests/) and then push to github.
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Create a github ticket with a link to the relevant branch that you think should be merged. Briefly describe what is going on in the ticket
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www.tiddlywiki.com/#TiddlySaver - An applet used by the Tiddlywiki project to save, similar but less generic.
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www.w3.org/TR/2009/WD-FileAPI-20091117/ - W3C’s proposal for a read only file API (used in FF 3.6)