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Sanitize pad names

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Jordan 2011-12-16 15:41:11 -05:00
parent ddf1cd345c
commit e8ef99fb72
5 changed files with 145 additions and 70 deletions
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41
node/db/PadManager.js
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@ -38,6 +38,14 @@ var globalPads = {
remove: function (name) { delete this[':'+name]; }
};
/**
* An array of padId transformations. These represent changes in pad name policy over
* time, and allow us to "play back" these changes so legacy padIds can be found.
*/
var padIdTransforms = [
[/\s+/g, '_']
];
/**
* Returns a Pad Object with the callback
* @param id A String with the id of the pad
@ -110,6 +118,39 @@ exports.doesPadExists = function(padId, callback)
});
}
//returns a sanitized padId, respecting legacy pad id formats
exports.sanitizePadId = function(padId, callback) {
var transform_index = arguments[2] || 0;
//we're out of possible transformations, so just return it
if(transform_index >= padIdTransforms.length)
{
callback(padId);
}
//check if padId exists
else
{
exports.doesPadExists(padId, function(junk, exists)
{
if(exists)
{
callback(padId);
}
else
{
//get the next transformation *that's different*
var transformedPadId = padId;
while(transformedPadId == padId && transform_index < padIdTransforms.length)
{
transformedPadId = padId.replace(padIdTransforms[transform_index][0], padIdTransforms[transform_index][1]);
transform_index += 1;
}
//check the next transform
exports.sanitizePadId(transformedPadId, callback, transform_index);
}
});
}
}
exports.isValidPadId = function(padId)
{
return /^(g.[a-zA-Z0-9]{16}\$)?[^$]{1,50}$/.test(padId);