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Fixed URLs containing '#': ID references and hash strings #1

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Fixed URLs containing '#': ID references and hash strings #1

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73 changes: 37 additions & 36 deletions fixUrls.js
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Original file line number Diff line number Diff line change
Expand Up @@ -12,51 +12,52 @@
*
*/

module.exports = function (css, currentUrl) {

// get current url
currentUrl = currentUrl || (typeof window !== "undefined" && window.location && window.location.href) || null;
if (typeof currentUrl != "string") {
throw new Error("fixUrls requires a current url");
}

//blank or null?
if (!css || typeof css !== "string")
module.exports = function (css) {
// get current location
var location = typeof window !== "undefined" && window.location;
if (!location) {
throw new Error("fixUrls requires window.location");
}

// blank or null?
if (!css || typeof css !== "string") {
return css;
}

//base url
var baseUrl = currentUrl.match(/^([a-z]+:)?(\/\/)?[^\/]+/)[0];
var protocol = baseUrl.split(":")[0];
var currentUrlPath = baseUrl + (currentUrl.replace(baseUrl, "")).replace(/\/[^\/]+$/, "") + "/";
var baseUrl = location.protocol + location.host;
var currentDir = baseUrl + location.pathname.replace(/\/[^\/]*$/, "/");

//convert each url(...)
var fixedCss = css.replace(/url *\( *(.+?) *\)/g, function(fullMatch, origUrl){
//strip quotes (if they exist)
// convert each url(...)
var fixedCss = css.replace(/url *\( *(.+?) *\)/g, function(fullMatch, origUrl) {
// strip quotes (if they exist)
var unquotedOrigUrl = origUrl
.replace(/^"(.*)"$/, function(o,$1){ return $1; })
.replace(/^'(.*)'$/, function(o,$1){ return $1; });
.replace(/^"(.*)"$/, function(o, $1){ return $1; })
.replace(/^'(.*)'$/, function(o, $1){ return $1; });

//already a full url? no change
if (/^(data:|http:\/\/|https:\/\/|file:\/\/\/)/i.test(unquotedOrigUrl))
// already a full url? no change
if (/^(#|data:|http:\/\/|https:\/\/|file:\/\/\/)/i.test(unquotedOrigUrl)) {
return fullMatch;

//convert the url to a full url
var newUrl = unquotedOrigUrl;
if (newUrl.indexOf("//") === 0) {
//add protocol
newUrl = protocol + ":" +newUrl;
}else if (newUrl.indexOf("/") === 0){
//path should be relative to the base url
newUrl = baseUrl + newUrl;
}else{
//path should be relative to the current directory
newUrl = currentUrlPath + newUrl.replace(/^\.\//, "");
}

// convert the url to a full url
var newUrl;

if (unquotedOrigUrl.indexOf("//") === 0) {
// add protocol
newUrl = location.protocol + unquotedOrigUrl;
} else if (unquotedOrigUrl.indexOf("/") === 0) {
// path should be relative to the base url
newUrl = baseUrl + unquotedOrigUrl; // already starts with '/'
} else {
// path should be relative to current directory
newUrl = currentDir + unquotedOrigUrl.replace(/^\.\//, "") // Strip leading './'
}

//send back the fixed url(...)
return "url("+JSON.stringify(newUrl)+")";
// send back the fixed url(...)
return "url(" + JSON.stringify(newUrl) + ")";
});

//send back the fixed css
// send back the fixed css
return fixedCss;
};