From 3ac1838cba725705a96a9d7b65721b15f4ec67b1 Mon Sep 17 00:00:00 2001
From: Einar Egilsson
Date: Fri, 26 Aug 2011 14:37:27 +0200
Subject: Moved everything to a js module, removed custom xpcom interfaces

---
 chrome/code/redirect.js | 218 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 218 insertions(+)
 create mode 100644 chrome/code/redirect.js

(limited to 'chrome/code/redirect.js')

diff --git a/chrome/code/redirect.js b/chrome/code/redirect.js
new file mode 100644
index 0000000..f9b7f00
--- /dev/null
+++ b/chrome/code/redirect.js
@@ -0,0 +1,218 @@
+
+var EXPORTED_SYMBOLS = ['Redirect'];
+
+
+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 = {
+	
+	//attributes
+	exampleUrl : null,
+			
+	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); 
+	},
+	
+	redirectUrl : null,
+	
+	get patternType() { return this._patternType; },
+	set patternType(value) { 
+		this._patternType = value;
+		this.compile();
+	},
+
+	unescapeMatches : false,
+	
+	disabled : false,
+	
+	//Functions
+	clone : function() {
+		return new Redirect(this.exampleUrl, this.includePattern, 
+							this.redirectUrl, this.patternType, 
+							this.excludePattern, this.unescapeMatches,
+							this.disabled);    
+	},
+	
+	compile : function() {
+		this._rxInclude = this._compile(this._includePattern); 
+		this._rxExclude = this._compile(this._excludePattern); 
+	},
+
+	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;
+	},
+
+	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);
+	},
+	
+	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
+		;
+	},
+	
+	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;	 
+	},
+	
+	isRegex: function() {
+		return this.patternType == Redirect.REGEX;
+	},
+	
+	isWildcard : function() {
+		return this.patternType == Redirect.WILDCARD;	
+	},
+
+	serialize : function() {
+		return [ this.exampleUrl
+			   , this.includePattern
+			   , this.redirectUrl
+			   , this.patternType
+			   , this.excludePattern
+			   , this.unescapeMatches
+			   , this.disabled ].join(',,,');
+	},
+	
+	test : function() {
+		return this.getMatch(this.exampleUrl);	
+	},
+
+	
+	//Private functions below	
+
+	_includePattern : null,
+	_excludePattern : null,
+	_patternType : null,
+	_rxInclude : null,
+	_rxExclude : null,
+	
+	_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(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';
+	},
+	
+	_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;
+	}
+};
\ No newline at end of file
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