chore(deps) [email protected]

Update notes:

- The base64-sha1 code got stripped out, so we bundle it now
- There are 2 optional dependencies which we want to ignore to avoid
  extra bundle size: xmldom and ws (the former is used by RN but we
  provide it in the app and the latter is only used by Node
  environments)

Author: saghul

.npmrc

@@ -0,0 +1,2 @@
+omit=optional
+

modules/xmpp/Caps.js

@@ -1,9 +1,11 @@
 import $ from 'jquery';
-import { Strophe, b64_sha1 } from 'strophe.js'; // eslint-disable-line camelcase
+import { Strophe } from 'strophe.js'; // eslint-disable-line camelcase
 
 import { XMPPEvents } from '../../service/xmpp/XMPPEvents';
 import Listenable from '../util/Listenable';
 
+import sha1 from './sha1';
+
 /**
  * The property
  */
@@ -46,7 +48,7 @@ function generateSha(identities, features) {
     const sortedFeatures = features.sort().reduce(
         (tmp, feature) => `${tmp + feature}<`, '');
 
-    return b64_sha1(sortedIdentities + sortedFeatures);
+    return sha1.b64_sha1(sortedIdentities + sortedFeatures);
 }
 
 /**

modules/xmpp/sha1.js

@@ -0,0 +1,174 @@
+/* eslint-disable */
+
+/*
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
+ * in FIPS PUB 180-1
+ * Version 2.1a Copyright Paul Johnston 2000 - 2002.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for details.
+ */
+/* global define */
+
+/* Some functions and variables have been stripped for use with Strophe */
+
+/*
+ * Calculate the SHA-1 of an array of big-endian words, and a bit length
+ */
+function core_sha1(x, len) {
+    /* append padding */
+    x[len >> 5] |= 0x80 << (24 - len % 32);
+    x[((len + 64 >> 9) << 4) + 15] = len;
+
+    var w = new Array(80);
+    var a =  1732584193;
+    var b = -271733879;
+    var c = -1732584194;
+    var d =  271733878;
+    var e = -1009589776;
+
+    var i, j, t, olda, oldb, oldc, oldd, olde;
+    for (i = 0; i < x.length; i += 16) {
+        olda = a;
+        oldb = b;
+        oldc = c;
+        oldd = d;
+        olde = e;
+
+        for (j = 0; j < 80; j++) {
+            if (j < 16) {
+                w[j] = x[i + j];
+            } else {
+                w[j] = rol(w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16], 1);
+            }
+
+            t = safe_add(safe_add(rol(a, 5), sha1_ft(j, b, c, d)),
+                         safe_add(safe_add(e, w[j]), sha1_kt(j)));
+            e = d;
+            d = c;
+            c = rol(b, 30);
+            b = a;
+            a = t;
+        }
+
+        a = safe_add(a, olda);
+        b = safe_add(b, oldb);
+        c = safe_add(c, oldc);
+        d = safe_add(d, oldd);
+        e = safe_add(e, olde);
+    }
+    return [a, b, c, d, e];
+}
+
+/*
+ * Perform the appropriate triplet combination function for the current
+ * iteration
+ */
+function sha1_ft (t, b, c, d) {
+    if (t < 20) { return (b & c) | ((~b) & d); }
+    if (t < 40) { return b ^ c ^ d; }
+    if (t < 60) { return (b & c) | (b & d) | (c & d); }
+    return b ^ c ^ d;
+}
+
+/*
+ * Determine the appropriate additive constant for the current iteration
+ */
+function sha1_kt(t) {
+    return (t < 20) ?  1518500249 : (t < 40) ?  1859775393 : (t < 60) ? -1894007588 : -899497514;
+}
+
+/*
+ * Calculate the HMAC-SHA1 of a key and some data
+ */
+function core_hmac_sha1(key, data) {
+    var bkey = str2binb(key);
+    if (bkey.length > 16) {
+        bkey = core_sha1(bkey, key.length * 8);
+    }
+
+    var ipad = new Array(16), opad = new Array(16);
+    for (var i = 0; i < 16; i++) {
+        ipad[i] = bkey[i] ^ 0x36363636;
+        opad[i] = bkey[i] ^ 0x5C5C5C5C;
+    }
+
+    var hash = core_sha1(ipad.concat(str2binb(data)), 512 + data.length * 8);
+    return core_sha1(opad.concat(hash), 512 + 160);
+}
+
+/*
+ * Add integers, wrapping at 2^32. This uses 16-bit operations internally
+ * to work around bugs in some JS interpreters.
+ */
+function safe_add(x, y) {
+    var lsw = (x & 0xFFFF) + (y & 0xFFFF);
+    var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
+    return (msw << 16) | (lsw & 0xFFFF);
+}
+
+/*
+ * Bitwise rotate a 32-bit number to the left.
+ */
+function rol(num, cnt) {
+    return (num << cnt) | (num >>> (32 - cnt));
+}
+
+/*
+ * Convert an 8-bit or 16-bit string to an array of big-endian words
+ * In 8-bit function, characters >255 have their hi-byte silently ignored.
+ */
+function str2binb(str) {
+    var bin = [];
+    var mask = 255;
+    for (var i = 0; i < str.length * 8; i += 8) {
+        bin[i>>5] |= (str.charCodeAt(i / 8) & mask) << (24 - i%32);
+    }
+    return bin;
+}
+
+/*
+ * Convert an array of big-endian words to a base-64 string
+ */
+function binb2b64 (binarray) {
+    var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+    var str = "";
+    var triplet, j;
+    for (var i = 0; i < binarray.length * 4; i += 3) {
+        triplet = (((binarray[i   >> 2] >> 8 * (3 -  i   %4)) & 0xFF) << 16) |
+                  (((binarray[i+1 >> 2] >> 8 * (3 - (i+1)%4)) & 0xFF) << 8 ) |
+                  ((binarray[i+2 >> 2] >> 8 * (3 - (i+2)%4)) & 0xFF);
+
+        for (j = 0; j < 4; j++) {
+            if (i * 8 + j * 6 > binarray.length * 32) { str += "="; }
+            else { str += tab.charAt((triplet >> 6*(3-j)) & 0x3F); }
+        }
+    }
+    return str;
+}
+
+/*
+ * Convert an array of big-endian words to a string
+ */
+function binb2str(bin) {
+    var str = "";
+    var mask = 255;
+    for (var i = 0; i < bin.length * 32; i += 8) {
+        str += String.fromCharCode((bin[i>>5] >>> (24 - i%32)) & mask);
+    }
+    return str;
+}
+
+/*
+ * These are the functions you'll usually want to call
+ * They take string arguments and return either hex or base-64 encoded strings
+ */
+const SHA1 = {
+    b64_hmac_sha1:  function (key, data){ return binb2b64(core_hmac_sha1(key, data)); },
+    b64_sha1:       function (s) { return binb2b64(core_sha1(str2binb(s),s.length * 8)); },
+    binb2str:       binb2str,
+    core_hmac_sha1: core_hmac_sha1,
+    str_hmac_sha1:  function (key, data){ return binb2str(core_hmac_sha1(key, data)); },
+    str_sha1:       function (s) { return binb2str(core_sha1(str2binb(s),s.length * 8)); },
+};
+export { SHA1 as default };