make be able to add more than one endpoint to engine service

[yoh1496]

#156

I modified erroneous regexp in registerFileAsService.prototype.getEngineSubject function .

app-uc-unit-manager/src/html/js/registerFileAsService.js

Lines 291 to 306 in 15ada8b

	registerFileAsService.prototype.getEngineSubject = function() {
	var path = uBoxProperty.getPath();
	var cellName = sessionStorage.selectedcell;
	var boxName = sessionStorage.boxName;
	var baseUrl = getClientStore().baseURL;
	var accessor = objCommon.initializeAccessor(baseUrl, cellName, boxName);
	var restAdapter = _pc.RestAdapterFactory.create(accessor);
	var response = restAdapter.propfind(path);
	var xmlContent = response.httpClient.responseText;
	try {
	return xmlContent.match(/subject=\"(.+?)\"/)[1];
	} catch (e) {
	return "";
	}
	}

For example, if xmlContent contains below text,

<p:service language="JavaScript" subject="" xmlns:p="urn:x-personium:xmlns" xmlns:D="DAV:" xmlns:Z="http://www.w3.com/standards/z39.50/">

then the regexp /subject=\"(.+?)\"/ matches with

" xmlns:p=

because it does not match empty string "" and matches all characters.

The erroneous match causes problems such as #156 (see the below code)

app-uc-unit-manager/src/html/js/main/http/RestAdapter.js

Line 492 in efb024f

sb += "<p:service language=\"JavaScript\" subject=\"" + subject + "\">";

So, I modify the regexp to force not to match double-quotation (").

Could you review it? thanks.