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/**
* Wappalyzer v4
*
* Created by Elbert Alias <elbert@alias.io>
*
* License: GPLv3 http://www.gnu.org/licenses/gpl-3.0.txt
*/
var wappalyzer = (function() {
//'use strict';
/**
* Application class
*/
var Application = function(app, detected) {
this.app = app;
this.confidence = { };
this.confidenceTotal = 0;
this.detected = Boolean(detected);
this.excludes = [ ];
this.version = '';
this.versions = [ ];
};
Application.prototype = {
/**
* Calculate confidence total
*/
getConfidence: function() {
var
id,
total = 0;
for ( id in this.confidence ) {
total += this.confidence[id];
}
return this.confidenceTotal = Math.min(total, 100);
},
/**
* Resolve version number (find the longest version number that contains all shorter detected version numbers)
*/
getVersion: function() {
var i, resolved;
if ( !this.versions.length ) {
return;
}
this.versions.sort(function(a, b) {
return a.length - b.length;
});
resolved = this.versions[0];
for ( i = 1; i < this.versions.length; i++ ) {
if ( this.versions[i].indexOf(resolved) === -1 ) {
break;
}
resolved = this.versions[i];
}
return this.version = resolved;
},
setDetected: function(pattern, type, value, key) {
this.detected = true;
// Set confidence level
this.confidence[type + ' ' + ( key ? key + ' ' : '' ) + pattern.regex] = pattern.confidence || 100;
// Detect version number
if ( pattern.version ) {
var
version = pattern.version,
matches = pattern.regex.exec(value);
if ( matches ) {
matches.forEach(function(match, i) {
// Parse ternary operator
var ternary = new RegExp('\\\\' + i + '\\?([^:]+):(.*)$').exec(version);
if ( ternary && ternary.length === 3 ) {
version = version.replace(ternary[0], match ? ternary[1] : ternary[2]);
}
// Replace back references
version = version.replace(new RegExp('\\\\' + i, 'g'), match || '');
});
if ( version && this.versions.indexOf(version) < 0 ) {
this.versions.push(version);
}
this.getVersion();
}
}
}
};
var asArray = function(value) {
return typeof value === 'string' ? [ value ] : value;
};
/**
* Call driver functions
*/
var driver = function(func, args) {
if ( typeof w.driver[func] !== 'function' ) {
w.log('not implemented: w.driver.' + func, 'core', 'warn');
return;
}
return w.driver[func](args);
};
/**
* Parse apps.json patterns
*/
var parsePatterns = function(patterns) {
var
key,
parsed = {};
// Convert string to object containing array containing string
if ( typeof patterns === 'string' || patterns instanceof Array ) {
patterns = {
main: asArray(patterns)
};
}
for ( key in patterns ) {
parsed[key] = [];
asArray(patterns[key]).forEach(function(pattern) {
var attrs = {};
pattern.split('\\;').forEach(function(attr, i) {
if ( i ) {
// Key value pairs
attr = attr.split(':');
if ( attr.length > 1 ) {
attrs[attr.shift()] = attr.join(':');
}
} else {
attrs.string = attr;
try {
attrs.regex = new RegExp(attr.replace('/', '\/'), 'i'); // Escape slashes in regular expression
} catch (e) {
attrs.regex = new RegExp();
w.log(e + ': ' + attr, 'error', 'core');
}
}
});
parsed[key].push(attrs);
});
}
// Convert back to array if the original pattern list was an array (or string)
if ( parsed.hasOwnProperty('main') ) {
parsed = parsed.main;
}
return parsed;
};
/**
* Main script
*/
var w = {
apps: {},
cats: null,
ping: {
hostnames: { }
},
adCache: [],
detected: {},
config: {
websiteURL: 'https://wappalyzer.com/',
twitterURL: 'https://twitter.com/Wappalyzer',
githubURL: 'https://github.com/AliasIO/Wappalyzer',
},
validation: {
hostname: /(www.)?((.+?)\.(([a-z]{2,3}\.)?[a-z]{2,6}))$/,
hostnameBlacklist: /((local|dev(elopment)?|stag(e|ing)?|test(ing)?|demo(shop)?|admin|google|cache)\.|\/admin|\.local)/
},
/**
* Log messages to console
*/
log: function(message, source, type) {
driver('log', {
source: source || '',
message: JSON.stringify(message),
type: type || 'debug'
});
},
/**
* Initialize
*/
init: function() {
w.log('Function call: w.init()', 'core');
// Initialize driver
if ( w.driver !== undefined ) {
driver('init');
} else {
w.log('No driver, exiting', 'core');
}
},
/**
* Analyze the request
*/
analyze: function(hostname, url, data) {
var
app,
apps = {};
w.log('Function call: w.analyze()', 'core');
if ( w.apps === undefined || w.categories === undefined ) {
w.log('apps.json not loaded, check for syntax errors', 'core');
return;
}
// Remove hash from URL
data.url = url = url.split('#')[0];
if ( typeof data.html !== 'string' ) {
data.html = '';
}
if ( w.detected[url] === undefined ) {
w.detected[url] = {};
}
for ( app in w.apps ) {
apps[app] = w.detected[url] && w.detected[url][app] ? w.detected[url][app] : new Application(app);
if ( url ) {
w.analyzeUrl(apps[app], url);
}
if ( data.html ) {
w.analyzeHtml(apps[app], data.html);
w.analyzeScript(apps[app], data.html);
w.analyzeMeta(apps[app], data.html);
}
if ( data.headers ) {
w.analyzeHeaders(apps[app], data.headers);
}
if ( data.env ) {
w.analyzeEnv(apps[app], data.env);
}
}
for ( app in apps ) {
if ( !apps[app].detected ) {
delete apps[app];
}
}
w.resolveExcludes(apps);
w.resolveImplies(apps, url);
w.cacheDetectedApps(apps, url);
w.trackDetectedApps(apps, url, hostname, data.html);
if ( Object.keys(apps).length ) {
w.log(Object.keys(apps).length + ' apps detected: ' + Object.keys(apps).join(', ') + ' on ' + url, 'core');
}
driver('displayApps');
},
resolveExcludes: function(apps) {
var
app,
excludes = [];
// Exclude app in detected apps only
for ( app in apps ) {
if ( w.apps[app].excludes ) {
asArray(w.apps[app].excludes).forEach(function(excluded) {
excludes.push(excluded);
});
}
}
// Remove excluded applications
for ( app in apps ) {
if ( excludes.indexOf(app) !== -1 ) {
delete apps[app];
}
}
},
resolveImplies: function(apps, url) {
var
confidence,
id,
checkImplies = true;
// Implied applications
// Run several passes as implied apps may imply other apps
while ( checkImplies ) {
checkImplies = false;
for ( app in apps ) {
confidence = apps[app].confidence;
if ( w.apps[app] && w.apps[app].implies ) {
asArray(w.apps[app].implies).forEach(function(implied) {
implied = parsePatterns(implied)[0];
if ( !w.apps[implied.string] ) {
w.log('Implied application ' + implied.string + ' does not exist', 'core', 'warn');
return;
}
if ( !apps.hasOwnProperty(implied.string) ) {
apps[implied.string] = w.detected[url] && w.detected[url][implied.string] ? w.detected[url][implied.string] : new Application(implied.string, true);
checkImplies = true;
}
// Apply app confidence to implied app
for ( id in confidence ) {
apps[implied.string].confidence[id + ' implied by ' + app] = confidence[id] * ( implied.confidence ? implied.confidence / 100 : 1 );
}
});
}
}
}
},
/**
* Cache detected applications
*/
cacheDetectedApps: function(apps, url) {
var app, id, confidence;
for ( app in apps ) {
confidence = apps[app].confidence;
// Per URL
w.detected[url][app] = apps[app];
for ( id in confidence ) {
w.detected[url][app].confidence[id] = confidence[id];
}
}
},
/**
* Track detected applications
*/
trackDetectedApps: function(apps, url, hostname, html) {
var app, match;
for ( app in apps ) {
if ( w.detected[url][app].getConfidence() >= 100 && w.validation.hostname.test(hostname) && !w.validation.hostnameBlacklist.test(url) ) {
if ( !w.ping.hostnames.hasOwnProperty(hostname) ) {
w.ping.hostnames[hostname] = {
applications: {},
meta: {}
};
}
if ( !w.ping.hostnames[hostname].applications.hasOwnProperty(app) ) {
w.ping.hostnames[hostname].applications[app] = {
hits: 0
};
}
w.ping.hostnames[hostname].applications[app].hits ++;
if ( apps[app].version ) {
w.ping.hostnames[hostname].applications[app].version = apps[app].version;
}
}
}
// Additional information
if ( w.ping.hostnames.hasOwnProperty(hostname) ) {
match = html.match(/<html[^>]*[: ]lang="([a-z]{2}((-|_)[A-Z]{2})?)"/i);
if ( match && match.length ) {
w.ping.hostnames[hostname].meta['language'] = match[1];
}
}
if ( Object.keys(w.ping.hostnames).length >= 50 || w.adCache.length >= 50 ) {
driver('ping');
}
},
/**
* Analyze URL
*/
analyzeUrl: function(app, url) {
var patterns = parsePatterns(w.apps[app.app].url);
if ( patterns.length ) {
patterns.forEach(function(pattern) {
if ( pattern.regex.test(url) ) {
app.setDetected(pattern, 'url', url);
}
});
}
},
/**
* Analyze HTML
*/
analyzeHtml: function(app, html) {
var patterns = parsePatterns(w.apps[app.app].html);
if ( patterns.length ) {
patterns.forEach(function(pattern) {
if ( pattern.regex.test(html) ) {
app.setDetected(pattern, 'html', html);
}
});
}
},
/**
* Analyze script tag
*/
analyzeScript: function(app, html) {
var
regex = new RegExp('<script[^>]+src=("|\')([^"\']+)', 'ig'),
patterns = parsePatterns(w.apps[app.app].script);
if ( patterns.length ) {
patterns.forEach(function(pattern) {
var match;
while ( match = regex.exec(html) ) {
if ( pattern.regex.test(match[2]) ) {
app.setDetected(pattern, 'script', match[2]);
}
}
});
}
},
/**
* Analyze meta tag
*/
analyzeMeta: function(app, html) {
var
content, match, meta,
regex = /<meta[^>]+>/ig,
patterns = parsePatterns(w.apps[app.app].meta);
if ( patterns ) {
while ( match = regex.exec(html) ) {
for ( meta in patterns ) {
if ( new RegExp('(name|property)=["\']' + meta + '["\']', 'i').test(match) ) {
content = match.toString().match(/content=("|')([^"']+)("|')/i);
patterns[meta].forEach(function(pattern) {
if ( content && content.length === 4 && pattern.regex.test(content[2]) ) {
app.setDetected(pattern, 'meta', content[2], meta);
}
});
}
}
}
}
},
/**
* analyze response headers
*/
analyzeHeaders: function(app, headers) {
var
header,
patterns = parsePatterns(w.apps[app.app].headers);
if ( headers ) {
for ( header in patterns ) {
patterns[header].forEach(function(pattern) {
header = header.toLowerCase();
if ( headers.hasOwnProperty(header) && pattern.regex.test(headers[header]) ) {
app.setDetected(pattern, 'headers', headers[header], header);
}
});
}
}
},
/**
* Analyze environment variables
*/
analyzeEnv: function(app, envs) {
var patterns = parsePatterns(w.apps[app.app].env);
if ( patterns.length ) {
patterns.forEach(function(pattern) {
var env;
for ( env in envs ) {
if ( pattern.regex.test(envs[env]) ) {
app.setDetected(pattern, 'env', envs[env]);
}
}
});
}
}
};
return w;
})();
// CommonJS package
// See http://wiki.commonjs.org/wiki/CommonJS
if ( typeof exports === 'object' ) {
exports.wappalyzer = wappalyzer;
}