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Merge branch 'ft-domain_blacklist_dom_start'
* ft-domain_blacklist_dom_start: Added logic to perform the blacklisting on document_start - this makes the redirect faster, and doesn't wait for page load, which caused sometimes the phishing alert to not happen.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| (function() { | ||
| let objBrowser = chrome ? chrome : browser; | ||
| //Get the blacklist domains option for the user | ||
| objBrowser.runtime.sendMessage({func: "blacklist_domains"}, function(objResponse) { | ||
| if(objResponse && objResponse.hasOwnProperty("resp")) { | ||
| if(objResponse.resp == 1) { | ||
| blacklistedDomainCheck(); | ||
| } | ||
| } | ||
| }); | ||
|
|
||
| //Detects if the current tab is in the blacklisted domains file | ||
| function blacklistedDomainCheck() | ||
| { | ||
| let objBrowser = chrome ? chrome : browser; | ||
| var arrBlacklistedDomains = []; | ||
| var arrWhitelistedDomains = ["www.myetherwallet.com", "myetherwallet.com"]; | ||
| objBrowser.runtime.sendMessage({func: "blacklist_domain_list"}, function(objResponse) { | ||
| if(objResponse && objResponse.hasOwnProperty("resp")) { | ||
| arrBlacklistedDomains = objResponse.resp; | ||
| objBrowser.runtime.sendMessage({func: "whitelist_domain_list"}, function(objResponse) { | ||
| if(objResponse && objResponse.hasOwnProperty("resp")) { | ||
| arrWhitelistedDomains = objResponse.resp; | ||
| return doBlacklistCheck(); | ||
| } | ||
| }.bind(arrWhitelistedDomains)); | ||
| } | ||
| }.bind(arrBlacklistedDomains)); | ||
|
|
||
| function doBlacklistCheck() { | ||
| if(arrBlacklistedDomains.length > 0) { | ||
| var strCurrentTab = window.location.hostname; | ||
|
|
||
| //Domain is whitelisted, don't check the blacklist. | ||
| if(arrWhitelistedDomains.includes(strCurrentTab)) { | ||
| console.log("Domain "+ strCurrentTab +" is whitelisted on EAL!"); | ||
| return; | ||
| } | ||
|
|
||
| //Levenshtien - @sogoiii | ||
| var isBlacklisted = arrBlacklistedDomains.includes(strCurrentTab); | ||
| var source = strCurrentTab.replace(/\./g,''); | ||
| var intHolisticMetric = levenshtein(source, 'myetherwallet'); | ||
| var intHolisticLimit = 7 // How different can the word be? | ||
| var blHolisticStatus = (intHolisticMetric > 0 && intHolisticMetric < intHolisticLimit) ? true : false; | ||
|
|
||
| if (isBlacklisted || blHolisticStatus ) { | ||
| window.location.href = "https://harrydenley.com/EtherAddressLookup/phishing.html"; | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| function levenshtein(a, b) { | ||
| if(a.length == 0) return b.length; | ||
| if(b.length == 0) return a.length; | ||
|
|
||
| // swap to save some memory O(min(a,b)) instead of O(a) | ||
| if(a.length > b.length) { | ||
| var tmp = a; | ||
| a = b; | ||
| b = tmp; | ||
| } | ||
|
|
||
| var row = []; | ||
| // init the row | ||
| for(var i = 0; i <= a.length; i++){ | ||
| row[i] = i; | ||
| } | ||
|
|
||
| // fill in the rest | ||
| for(var i = 1; i <= b.length; i++){ | ||
| var prev = i; | ||
| for(var j = 1; j <= a.length; j++){ | ||
| var val; | ||
| if(b.charAt(i-1) == a.charAt(j-1)){ | ||
| val = row[j-1]; // match | ||
| } else { | ||
| val = Math.min(row[j-1] + 1, // substitution | ||
| prev + 1, // insertion | ||
| row[j] + 1); // deletion | ||
| } | ||
| row[j - 1] = prev; | ||
| prev = val; | ||
| } | ||
| row[a.length] = prev; | ||
| } | ||
|
|
||
| return row[a.length]; | ||
| } | ||
| })(); |
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