| author | Anthony Ly <anthonyly.com@gmail.com> |
| Wed, 19 Dec 2012 17:46:52 -0800 | |
| changeset 204 | 09a1c134465b |
| parent 194 | 32102edaa81b |
| permissions | -rw-r--r-- |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
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1 |
// Password strength meter |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
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2 |
function passwordStrength(password1, username, password2) { |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
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3 |
var shortPass = 1, badPass = 2, goodPass = 3, strongPass = 4, mismatch = 5, symbolSize = 0, natLog, score; |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
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4 |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
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5 |
// password 1 != password 2 |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
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6 |
if ( (password1 != password2) && password2.length > 0) |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
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7 |
return mismatch |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
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8 |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
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changeset
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9 |
//password < 4 |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
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changeset
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10 |
if ( password1.length < 4 ) |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
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changeset
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11 |
return shortPass |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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12 |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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13 |
//password1 == username |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
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changeset
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14 |
if ( password1.toLowerCase() == username.toLowerCase() ) |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
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changeset
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15 |
return badPass; |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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16 |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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17 |
if ( password1.match(/[0-9]/) ) |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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18 |
symbolSize +=10; |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
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changeset
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19 |
if ( password1.match(/[a-z]/) ) |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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20 |
symbolSize +=26; |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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21 |
if ( password1.match(/[A-Z]/) ) |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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22 |
symbolSize +=26; |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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23 |
if ( password1.match(/[^a-zA-Z0-9]/) ) |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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24 |
symbolSize +=31; |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
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25 |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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26 |
natLog = Math.log( Math.pow(symbolSize, password1.length) ); |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
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27 |
score = natLog / Math.LN2; |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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28 |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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29 |
if (score < 40 ) |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
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30 |
return badPass |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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31 |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
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32 |
if (score < 56 ) |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
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33 |
return goodPass |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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34 |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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35 |
return strongPass; |
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09a1c134465b
man wordpress + plugins order post + slideshow
Anthony Ly <anthonyly.com@gmail.com>
parents:
194
diff
changeset
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36 |
} |