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 # gpg --version
gpg (GnuPG) 2.0.9
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Home: ~/.gnupg
Supported algorithms:
Pubkey: RSA, ELG, DSA
Cipher: 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH
Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2
Used libraries: gcrypt(1.4.0)

tryToFoundTheRightCommand: function () {
        if(isUnix()) {
            //Year, on linux no test, because it's a good Os.
            //We only look if the user wants to force the path.
            var prefs = Components.classes["@mozilla.org/preferences-service;1"].
                                   getService(Components.interfaces.nsIPrefService);
            prefs = prefs.getBranch("extensions.firegpg.");

            try {
                var force = prefs.getBoolPref("specify_gpg_path");
            }
            catch (e) {
                var force = false;
            }

            if (force == true)
                this.GpgCommand = prefs.getCharPref("gpg_path");
            else {
                prefs.setCharPref("gpg_path","gpg");
                this.GpgCommand = "gpg";
            tryToFoundTheRightCommand}
        }
        else {
            //Two choises : 1) The user want to set the path himself, so we use this.
            var prefs = Components.classes["@mozilla.org/preferences-service;1"].
                                   getService(Components.interfaces.nsIPrefService);
            prefs = prefs.getBranch("extensions.firegpg.");

            try {
                var force = prefs.getBoolPref("specify_gpg_path");
            }
            catch (e) {
                var force = false;
            }

            if (force == true)
                this.GpgCommand = prefs.getCharPref("gpg_path");
            else {

                //Or we will try to found a valid path.

                //1) If there are allready a path set, he can be valid.
                var gpg_path_in_options = prefs.getCharPref("gpg_path","");

                if (gpg_path_in_options != "") {
                    this.GpgCommand = gpg_path_in_options;
                    if (this.selfTest() == true)
                        return; //It's work, yourou.
                }

                //2) We have to guess some path to see if it's work...

                //TODO : Yes, it's horrible this copy/paste code...


                //GNU ?
                var testingcommand = "C:\\Program Files\\GNU\\GnuPG\\gpg.exe";
                this.GpgCommand = testingcommand;
                if (this.selfTest() == true)
                {
                    //Don't forget to save the information for the nextime !
                    prefs.setCharPref("gpg_path",testingcommand);
                    return; //It's work, We're the best.
                }

                //Windows Privacy Tools ?
                var testingcommand = "C:\\Program Files\\Windows Privacy Tools\\GnuPG\\gpg.exe";
                this.GpgCommand = testingcommand;
                if (this.selfTest() == true)
                {
                    prefs.setCharPref("gpg_path",testingcommand);
                    //Don't forget to save the information for the nextime !
                    return; //It's work, mwahaha.
                }

                //Maybe in the path ?
                var testingcommand = "gpg.exe";
                this.GpgCommand = testingcommand;
                if (this.selfTest() == true)
                {
                    //Don't forget to save the information for the nextime !
                    prefs.setCharPref("gpg_path",testingcommand);
                    return; //It's work, hehehe.
                }

            }
        }
    }
};