configs/dot.vimperator/plugin/hash.js
2013-01-15 04:30:56 +01:00

89 lines
2.6 KiB
JavaScript

// PLUGIN_INFO//{{{
var PLUGIN_INFO =
<VimperatorPlugin>
<name>{NAME}</name>
<description>hash of file</description>
<author mail="konbu.komuro@gmail.com" homepage="http://d.hatena.ne.jp/hogelog/">hogelog</author>
<version>0.2.2</version>
<minVersion>2.3</minVersion>
<maxVersion>2.3</maxVersion>
<updateURL>https://github.com/vimpr/vimperator-plugins/raw/master/hash.js</updateURL>
<detail><![CDATA[
== COMMANDS ==
hash:
:hash md2|md5|sha1|sha256|sha384|sha512 file-path
]]></detail>
</VimperatorPlugin>;
//}}}
(function() {
const PR_UINT_MAX = 0xffffffff;
let Crypt = Cc["@mozilla.org/security/hash;1"].createInstance(Ci.nsICryptoHash);
let Algos = [
["md2", "MD2 Algorithm"],
["md5", "MD5 Algorithm"],
["sha1", "SHA1 Algorithm"], // SHA-1
["sha256", "SHA256 Algorithm"], // SHA-256
["sha384", "SHA384 Algorithm"], // SHA-384
["sha512", "SHA512 Algorithm"], // SHA-512
];
function getStream(path)
{
let file = io.File(path);
let stream = Cc["@mozilla.org/network/file-input-stream;1"]
.createInstance(Ci.nsIFileInputStream);
stream.init(file, 0x01, 0444, 0);
return stream;
}
// return the two-digit hexadecimal code for a byte
function toHexString(charCode)
{
return ("0" + charCode.toString(16)).slice(-2);
}
commands.addUserCommand(["hash"], "hash of file",
function(args){
if (args.length!=2) {
liberator.echo("usage \":hash md2|md5|sha1|sha256|sha384|sha512 file-path\"");
return false;
}
let [algo, path] = args;
let stream = getStream(path);
Crypt.initWithString(algo);
// read the entire stream
Crypt.updateFromStream(stream, PR_UINT_MAX);
stream.close();
// get base-64 string
let hash = Crypt.finish(false);
// convert the binary hash data to a hex string.
let str = [toHexString(hash.charCodeAt(i)) for(i in hash)].join("");
util.copyToClipboard(str, true);
},
{
bang: true,
completer: function (context, args){
if (args.completeArg == 0) {
context.title = ["hash", "algorithm"];
context.completions = Algos;
} else if (args.completeArg == 1) {
completion.url(context, "f");
}
},
literal: 1,
},
true
);
})();
// vim: fdm=marker sw=4 ts=4 et: