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//// $Id$
function Redirect(exampleUrl, includePattern, redirectUrl, patternType, excludePattern, unescapeMatches, disabled) {
this._init(exampleUrl, includePattern, redirectUrl, patternType, excludePattern, unescapeMatches, disabled);
}
//Static
Redirect.WILDCARD = 'W';
Redirect.REGEX = 'R';
Redirect.prototype = {
//These are the only ones that are necessary to have as properties for now
//The others can be changed to properties later as neccessary
_includePattern : null,
_excludePattern : null,
_patternType : null,
_rxInclude : null,
_rxExclude : null,
get patternType() { return this._patternType; },
set patternType(value) {
this._patternType = value;
this.compile();
},
get includePattern() { return this._includePattern; },
set includePattern(value) {
this._includePattern = value;
this._rxInclude = this._compile(value);
},
get excludePattern() { return this._excludePattern; },
set excludePattern(value) {
this._excludePattern = value;
this._rxExclude = this._compile(value);
},
_preparePattern : function(pattern) {
if (this.patternType == Redirect.REGEX) {
return pattern;
} else { //Convert wildcard to regex pattern
var converted = '^';
for (var i = 0; i < pattern.length; i++) {
var ch = pattern.charAt(i);
if ('()[]{}?.^$\\+'.indexOf(ch) != -1) {
converted += '\\' + ch;
} else if (ch == '*') {
converted += '(.*?)';
} else {
converted += ch;
}
}
converted += '$';
return converted;
}
},
compile : function() {
this._rxInclude = this._compile(this._includePattern);
this._rxExclude = this._compile(this._excludePattern);
},
_compile : function(pattern) {
if (!pattern) {
return null;
}
return new RegExp(this._preparePattern(pattern),"gi");
},
_init : function(exampleUrl, includePattern, redirectUrl, patternType, excludePattern, unescapeMatches, disabled) {
this.exampleUrl = exampleUrl || '';
this.includePattern = includePattern || '';
this.excludePattern = excludePattern || '';
this.redirectUrl = redirectUrl || '';
this.patternType = patternType || Redirect.WILDCARD;
this.unescapeMatches = (unescapeMatches === 'true' || unescapeMatches === true);
this.disabled = (disabled === 'true' || disabled === true);
},
toString : function() {
return 'REDIRECT: {'
+ '\n\tExample url : ' + this.exampleUrl
+ '\n\tInclude pattern : ' + this.includePattern
+ '\n\tExclude pattern : ' + this.excludePattern
+ '\n\tRedirect url : ' + this.redirectUrl
+ '\n\tPattern type : ' + this.patternType
+ '\n\tUnescape matches : ' + this.unescapeMatches
+ '\n\tDisabled : ' + this.disabled
+ '\n}\n';
},
isWildcard : function() {
return this.patternType == Redirect.WILDCARD;
},
isRegex: function() {
return this.patternType == Redirect.REGEX;
},
test : function() {
return this.getMatch(this.exampleUrl);
},
serialize : function() {
return [ this.exampleUrl
, this.includePattern
, this.redirectUrl
, this.patternType
, this.excludePattern
, this.unescapeMatches
, this.disabled ].join(',,,');
},
deserialize : function(str) {
if (!str || !str.split) {
throw Error("Invalid serialized redirect: " + str);
}
var parts = str.split(',,,');
if (parts.length < 5) {
throw Error("Invalid serialized redirect, too few fields: " + str);
}
this._init.apply(this, parts);
},
getMatch: function(url) {
var result = {
isMatch : false,
isExcludeMatch : false,
isDisabledMatch : false,
redirectTo : '',
toString : function() { return "{ isMatch : " + this.isMatch +
", isExcludeMatch : " + this.isExcludeMatch +
", isDisabledMatch : " + this.isDisabledMatch +
", redirectTo : \"" + this.redirectTo + "\"" +
"}"; }
};
var redirectTo = null;
redirectTo = this._includeMatch(url);
if (redirectTo !== null) {
if (this.disabled) {
result.isDisabledMatch = true;
} else if (this._excludeMatch(url)) {
result.isExcludeMatch = true;
} else {
result.isMatch = true;
result.redirectTo = redirectTo;
}
}
return result;
},
_includeMatch : function(url) {
if (!this._rxInclude) {
return null;
}
var matches = this._rxInclude.exec(url);
if (!matches) {
return null;
}
var resultUrl = this.redirectUrl;
for (var i = 1; i < matches.length; i++) {
resultUrl = resultUrl.replace(new RegExp('\\$' + i, 'gi'), this.unescapeMatches ? unescape(matches[i]) : matches[i]);
}
this._rxInclude.lastIndex = 0;
return resultUrl;
},
_excludeMatch : function(url) {
if (!this._rxExclude) {
return false;
}
var shouldExclude = !!this._rxExclude.exec(url);
this._rxExclude.lastIndex = 0;
return shouldExclude;
},
clone : function() {
return new Redirect(this.exampleUrl, this.includePattern,
this.redirectUrl, this.patternType,
this.excludePattern, this.unescapeMatches,
this.disabled);
},
copyValues : function(other) {
this.exampleUrl = other.exampleUrl;
this.includePattern = other.includePattern;
this.excludePattern = other.excludePattern;
this.redirectUrl = other.redirectUrl;
this.patternType = other.patternType;
this.unescapeMatches = other.unescapeMatches;
this.disabled = other.disabled;
},
equals : function(redirect) {
return this.exampleUrl == redirect.exampleUrl
&& this.includePattern == redirect.includePattern
&& this.excludePattern == redirect.excludePattern
&& this.redirectUrl == redirect.redirectUrl
&& this.patternType == redirect.patternType
&& this.unescapeMatches == redirect.unescapeMatches
;
}
};
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