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hash.jsm
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/*global Components: false */
/*jshint -W097 */
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
"use strict";
var EXPORTED_SYMBOLS = ["EnigmailHash"];
const Cu = Components.utils;
Cu.import("resource://enigmail/log.jsm"); /*global EnigmailLog: false */
Cu.import("resource://enigmail/windows.jsm"); /*global EnigmailWindows: false */
Cu.import("resource://enigmail/locale.jsm"); /*global EnigmailLocale: false */
Cu.import("resource://enigmail/prefs.jsm"); /*global EnigmailPrefs: false */
Cu.import("resource://enigmail/encryption.jsm"); /*global EnigmailEncryption: false */
Cu.import("resource://enigmail/dialog.jsm"); /*global EnigmailDialog: false */
const Ci = Components.interfaces;
const nsIEnigmail = Ci.nsIEnigmail;
const keyAlgorithms = [];
const mimeHashAlgorithms = [null, "sha1", "ripemd160", "sha256", "sha384", "sha512", "sha224", "md5"];
const EnigmailHash = {
determineAlgorithm: function(win, uiFlags, fromMailAddr, hashAlgoObj) {
EnigmailLog.DEBUG("hash.jsm: determineAlgorithm\n");
if (!win) {
win = EnigmailWindows.getMostRecentWindow();
}
const sendFlags = nsIEnigmail.SEND_TEST | nsIEnigmail.SEND_SIGNED;
const hashAlgo = mimeHashAlgorithms[EnigmailPrefs.getPref("mimeHashAlgorithm")];
if (typeof(keyAlgorithms[fromMailAddr]) != "string") {
// hash algorithm not yet known
const testUiFlags = nsIEnigmail.UI_TEST;
const listener = {
stdoutData: "",
stderrData: "",
exitCode: -1,
stdin: function(pipe) {
pipe.write("Dummy Test");
pipe.close();
},
stdout: function(data) {
this.stdoutData += data;
},
stderr: function(data) {
this.stderrData += data;
},
done: function(exitCode) {
this.exitCode = exitCode;
}
};
const proc = EnigmailEncryption.encryptMessageStart(win, testUiFlags, fromMailAddr, "",
"", hashAlgo, sendFlags,
listener, {}, {});
if (!proc) {
return 1;
}
proc.wait();
const msgText = listener.stdoutData;
const exitCode = listener.exitCode;
const retStatusObj = {};
let exitCode2 = EnigmailEncryption.encryptMessageEnd(listener.stderrData, exitCode,
testUiFlags, sendFlags, 10,
retStatusObj);
if ((exitCode2 === 0) && !msgText) exitCode2 = 1;
// if (exitCode2 > 0) exitCode2 = -exitCode2;
if (exitCode2 !== 0) {
// Abormal return
if (retStatusObj.statusFlags & nsIEnigmail.BAD_PASSPHRASE) {
// "Unremember" passphrase on error return
retStatusObj.errorMsg = EnigmailLocale.getString("badPhrase");
}
EnigmailDialog.alert(win, retStatusObj.errorMsg);
return exitCode2;
}
let hashAlgorithm = "sha1"; // default as defined in RFC 4880, section 7 is MD5 -- but that's outdated
const m = msgText.match(/^(Hash: )(.*)$/m);
if (m && (m.length > 2) && (m[1] == "Hash: ")) {
hashAlgorithm = m[2].toLowerCase();
}
else {
EnigmailLog.DEBUG("hash.jsm: determineAlgorithm: no hashAlgorithm specified - using MD5\n");
}
for (let i = 1; i < mimeHashAlgorithms.length; i++) {
if (mimeHashAlgorithms[i] === hashAlgorithm) {
EnigmailLog.DEBUG("hash.jsm: determineAlgorithm: found hashAlgorithm " + hashAlgorithm + "\n");
keyAlgorithms[fromMailAddr] = hashAlgorithm;
hashAlgoObj.value = hashAlgorithm;
return 0;
}
}
EnigmailLog.ERROR("hash.jsm: determineAlgorithm: no hashAlgorithm found\n");
return 2;
}
else {
EnigmailLog.DEBUG("hash.jsm: determineAlgorithm: hashAlgorithm " + keyAlgorithms[fromMailAddr] + " is cached\n");
hashAlgoObj.value = keyAlgorithms[fromMailAddr];
}
return 0;
}
};

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text/plain
Expires
Fri, Mar 14, 4:52 AM (2 m, 57 s)
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Storage Format
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Storage Handle
06/c4/74b3ec80fb32adb0c090c5d83ffe

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