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ShredFile

Kind: global class

new ShredFile(settings)

ShredFile Class constructor.

Param Type Default Description
settings object Settings to override the defaults.
[settings.shredPath] string "'/usr/bin/shred'" The path to the shred binary.
[settings.force] boolean false If true, change permissions to allow writing if necessary
[settings.iterations] number 3 Set the number of times to overwrite the file
[settings.bytes] number The number of bytes to shred
[settings.remove] boolean true If true, trucates and removes the file after overwriting
[settings.zero] boolean true If true, add a final overwrite with zeros to hide shredding
[settings.debugMode] boolean fakse If true, turns on debugging (logs to console)

Example

// Instantiat with all defaults
const shred = new ShredFile();

// Instantiate with some settings overrides
const shredder = new ShredFile({ iteractions: 5, debugMode: true });

shredFile.shred(files, [statusCb], [endCb]) ⇒ Promise.<object>

Allows one to securely shred a file or a set of files.

Kind: instance method of ShredFile
Returns: Promise.<object> - If no endCb is provided, a Promise will be returned.
Access: public

Param Type Description
files string | Array A path to a file or an array of paths to files
[statusCb] statusCallback (optional) This will be called on each status change (renaming and each overwrite iteration)
[endCb] endCallback (optional) This will be called when done.

Example

const shredder = new ShredFile();

// Do some shredding (Promise-style)
async function doSomeShredding() {
    // Shred a single file
    const result = await shredder.shred('/path/to/some/file');

    // Shred multiple files
    const result = await shredder.shred(['/path/to/first/file', '/path/to/second/file']);

    // Shred a file with notifications on progress
    const result = await shredder.shred('/another/file/to/shred', (action, progress, file, activeFilePath) => {
        console.log(`Currently ${action} ${activeFilePath} (${(progress * 100).floor()}%));
    });
}

// Do some shredding (callback-style)
function moreShredding(cb) {
    shredder.shred('/path/to/file/file', null, (err, file) => {
        if (err) {
            console.error(err);
            cb(err, null);
        }
        else {
            console.log('All Done!');
            cb(null, true);
        }
    });
}

ShredFile~endCallback : function

This callback belongs to the shred method and will be called (if supplied) when the shred command has completed or if there is an error.

Kind: inner typedef of ShredFile

Param Type Description
err Error A standard error message (null if no error)
file string | Array The original files parameter passed into this shred method.

ShredFile~statusCallback : function

This callback belongs to the shred command and will be called (if supplied) whenever the shred command sends a STDOUT. Used to show progress of a shred.

Kind: inner typedef of ShredFile

Param Type Description
action string This will be either 'overwriting' or 'renaming'
progress number The percentage of the specific action that is complete (ex. 0.66)
file string | Array File name of the file that is currently being acted upon
activeFilePath string Full path to the file that is currently being acted upon (does not include file name)