diff options
Diffstat (limited to 'url.js')
| -rw-r--r-- | url.js | 671 |
1 files changed, 671 insertions, 0 deletions
@@ -0,0 +1,671 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/publicdomain/zero/1.0/ + * Forked from https://github.com/github/url-polyfill + * Version 16c1aa Feb 9 2018. + */ + +(function(scope) { + "use strict"; + + // feature detect for URL constructor + var hasWorkingUrl = false; + if (!scope.forceJURL) { + try { + var u = new URL("b", "http://a"); + u.pathname = "c%20d"; + hasWorkingUrl = u.href === "http://a/c%20d"; + } catch (e) {} + } + + if (hasWorkingUrl) return; + + var relative = Object.create(null); + relative["ftp"] = 21; + relative["file"] = 0; + relative["gopher"] = 70; + relative["http"] = 80; + relative["https"] = 443; + relative["ws"] = 80; + relative["wss"] = 443; + + var relativePathDotMapping = Object.create(null); + relativePathDotMapping["%2e"] = "."; + relativePathDotMapping[".%2e"] = ".."; + relativePathDotMapping["%2e."] = ".."; + relativePathDotMapping["%2e%2e"] = ".."; + + function isRelativeScheme(scheme) { + return relative[scheme] !== undefined; + } + + function invalid() { + clear.call(this); + this._isInvalid = true; + } + + function IDNAToASCII(h) { + if ("" == h) { + invalid.call(this); + } + // XXX + return h.toLowerCase(); + } + + function percentEscape(c) { + var unicode = c.charCodeAt(0); + if ( + unicode > 0x20 && + unicode < 0x7f && + // " # < > ? ` + [0x22, 0x23, 0x3c, 0x3e, 0x3f, 0x60].indexOf(unicode) == -1 + ) { + return c; + } + return encodeURIComponent(c); + } + + function percentEscapeQuery(c) { + // XXX This actually needs to encode c using encoding and then + // convert the bytes one-by-one. + + var unicode = c.charCodeAt(0); + if ( + unicode > 0x20 && + unicode < 0x7f && + // " # < > ` (do not escape '?') + [0x22, 0x23, 0x3c, 0x3e, 0x60].indexOf(unicode) == -1 + ) { + return c; + } + return encodeURIComponent(c); + } + + var EOF = undefined, + ALPHA = /[a-zA-Z]/, + ALPHANUMERIC = /[a-zA-Z0-9\+\-\.]/; + + function parse(input, stateOverride, base) { + function err(message) { + errors.push(message); + } + + var state = stateOverride || "scheme start", + cursor = 0, + buffer = "", + seenAt = false, + seenBracket = false, + errors = []; + + loop: while ( + (input[cursor - 1] != EOF || cursor == 0) && + !this._isInvalid + ) { + var c = input[cursor]; + switch (state) { + case "scheme start": + if (c && ALPHA.test(c)) { + buffer += c.toLowerCase(); // ASCII-safe + state = "scheme"; + } else if (!stateOverride) { + buffer = ""; + state = "no scheme"; + continue; + } else { + err("Invalid scheme."); + break loop; + } + break; + + case "scheme": + if (c && ALPHANUMERIC.test(c)) { + buffer += c.toLowerCase(); // ASCII-safe + } else if (":" == c) { + this._scheme = buffer; + buffer = ""; + if (stateOverride) { + break loop; + } + if (isRelativeScheme(this._scheme)) { + this._isRelative = true; + } + if ("file" == this._scheme) { + state = "relative"; + } else if ( + this._isRelative && + base && + base._scheme == this._scheme + ) { + state = "relative or authority"; + } else if (this._isRelative) { + state = "authority first slash"; + } else { + state = "scheme data"; + } + } else if (!stateOverride) { + buffer = ""; + cursor = 0; + state = "no scheme"; + continue; + } else if (EOF == c) { + break loop; + } else { + err("Code point not allowed in scheme: " + c); + break loop; + } + break; + + case "scheme data": + if ("?" == c) { + query = "?"; + state = "query"; + } else if ("#" == c) { + this._fragment = "#"; + state = "fragment"; + } else { + // XXX error handling + if (EOF != c && "\t" != c && "\n" != c && "\r" != c) { + this._schemeData += percentEscape(c); + } + } + break; + + case "no scheme": + if (!base || !isRelativeScheme(base._scheme)) { + err("Missing scheme."); + invalid.call(this); + } else { + state = "relative"; + continue; + } + break; + + case "relative or authority": + if ("/" == c && "/" == input[cursor + 1]) { + state = "authority ignore slashes"; + } else { + err("Expected /, got: " + c); + state = "relative"; + continue; + } + break; + + case "relative": + this._isRelative = true; + if ("file" != this._scheme) this._scheme = base._scheme; + if (EOF == c) { + this._host = base._host; + this._port = base._port; + this._path = base._path.slice(); + this._query = base._query; + this._username = base._username; + this._password = base._password; + break loop; + } else if ("/" == c || "\\" == c) { + if ("\\" == c) err("\\ is an invalid code point."); + state = "relative slash"; + } else if ("?" == c) { + this._host = base._host; + this._port = base._port; + this._path = base._path.slice(); + this._query = "?"; + this._username = base._username; + this._password = base._password; + state = "query"; + } else if ("#" == c) { + this._host = base._host; + this._port = base._port; + this._path = base._path.slice(); + this._query = base._query; + this._fragment = "#"; + this._username = base._username; + this._password = base._password; + state = "fragment"; + } else { + var nextC = input[cursor + 1]; + var nextNextC = input[cursor + 2]; + if ( + "file" != this._scheme || + !ALPHA.test(c) || + (nextC != ":" && nextC != "|") || + (EOF != nextNextC && + "/" != nextNextC && + "\\" != nextNextC && + "?" != nextNextC && + "#" != nextNextC) + ) { + this._host = base._host; + this._port = base._port; + this._username = base._username; + this._password = base._password; + this._path = base._path.slice(); + this._path.pop(); + } + state = "relative path"; + continue; + } + break; + + case "relative slash": + if ("/" == c || "\\" == c) { + if ("\\" == c) { + err("\\ is an invalid code point."); + } + if ("file" == this._scheme) { + state = "file host"; + } else { + state = "authority ignore slashes"; + } + } else { + if ("file" != this._scheme) { + this._host = base._host; + this._port = base._port; + this._username = base._username; + this._password = base._password; + } + state = "relative path"; + continue; + } + break; + + case "authority first slash": + if ("/" == c) { + state = "authority second slash"; + } else { + err("Expected '/', got: " + c); + state = "authority ignore slashes"; + continue; + } + break; + + case "authority second slash": + state = "authority ignore slashes"; + if ("/" != c) { + err("Expected '/', got: " + c); + continue; + } + break; + + case "authority ignore slashes": + if ("/" != c && "\\" != c) { + state = "authority"; + continue; + } else { + err("Expected authority, got: " + c); + } + break; + + case "authority": + if ("@" == c) { + if (seenAt) { + err("@ already seen."); + buffer += "%40"; + } + seenAt = true; + for (var i = 0; i < buffer.length; i++) { + var cp = buffer[i]; + if ("\t" == cp || "\n" == cp || "\r" == cp) { + err("Invalid whitespace in authority."); + continue; + } + // XXX check URL code points + if (":" == cp && null === this._password) { + this._password = ""; + continue; + } + var tempC = percentEscape(cp); + null !== this._password + ? (this._password += tempC) + : (this._username += tempC); + } + buffer = ""; + } else if ( + EOF == c || + "/" == c || + "\\" == c || + "?" == c || + "#" == c + ) { + cursor -= buffer.length; + buffer = ""; + state = "host"; + continue; + } else { + buffer += c; + } + break; + + case "file host": + if (EOF == c || "/" == c || "\\" == c || "?" == c || "#" == c) { + if ( + buffer.length == 2 && + ALPHA.test(buffer[0]) && + (buffer[1] == ":" || buffer[1] == "|") + ) { + state = "relative path"; + } else if (buffer.length == 0) { + state = "relative path start"; + } else { + this._host = IDNAToASCII.call(this, buffer); + buffer = ""; + state = "relative path start"; + } + continue; + } else if ("\t" == c || "\n" == c || "\r" == c) { + err("Invalid whitespace in file host."); + } else { + buffer += c; + } + break; + + case "host": + case "hostname": + if (":" == c && !seenBracket) { + // XXX host parsing + this._host = IDNAToASCII.call(this, buffer); + buffer = ""; + state = "port"; + if ("hostname" == stateOverride) { + break loop; + } + } else if ( + EOF == c || + "/" == c || + "\\" == c || + "?" == c || + "#" == c + ) { + this._host = IDNAToASCII.call(this, buffer); + buffer = ""; + state = "relative path start"; + if (stateOverride) { + break loop; + } + continue; + } else if ("\t" != c && "\n" != c && "\r" != c) { + if ("[" == c) { + seenBracket = true; + } else if ("]" == c) { + seenBracket = false; + } + buffer += c; + } else { + err("Invalid code point in host/hostname: " + c); + } + break; + + case "port": + if (/[0-9]/.test(c)) { + buffer += c; + } else if ( + EOF == c || + "/" == c || + "\\" == c || + "?" == c || + "#" == c || + stateOverride + ) { + if ("" != buffer) { + var temp = parseInt(buffer, 10); + if (temp != relative[this._scheme]) { + this._port = temp + ""; + } + buffer = ""; + } + if (stateOverride) { + break loop; + } + state = "relative path start"; + continue; + } else if ("\t" == c || "\n" == c || "\r" == c) { + err("Invalid code point in port: " + c); + } else { + invalid.call(this); + } + break; + + case "relative path start": + if ("\\" == c) err("'\\' not allowed in path."); + state = "relative path"; + if ("/" != c && "\\" != c) { + continue; + } + break; + + case "relative path": + if ( + EOF == c || + "/" == c || + "\\" == c || + (!stateOverride && ("?" == c || "#" == c)) + ) { + if ("\\" == c) { + err("\\ not allowed in relative path."); + } + var tmp; + if ((tmp = relativePathDotMapping[buffer.toLowerCase()])) { + buffer = tmp; + } + if (".." == buffer) { + this._path.pop(); + if ("/" != c && "\\" != c) { + this._path.push(""); + } + } else if ("." == buffer && "/" != c && "\\" != c) { + this._path.push(""); + } else if ("." != buffer) { + if ( + "file" == this._scheme && + this._path.length == 0 && + buffer.length == 2 && + ALPHA.test(buffer[0]) && + buffer[1] == "|" + ) { + buffer = buffer[0] + ":"; + } + this._path.push(buffer); + } + buffer = ""; + if ("?" == c) { + this._query = "?"; + state = "query"; + } else if ("#" == c) { + this._fragment = "#"; + state = "fragment"; + } + } else if ("\t" != c && "\n" != c && "\r" != c) { + buffer += percentEscape(c); + } + break; + + case "query": + if (!stateOverride && "#" == c) { + this._fragment = "#"; + state = "fragment"; + } else if (EOF != c && "\t" != c && "\n" != c && "\r" != c) { + this._query += percentEscapeQuery(c); + } + break; + + case "fragment": + if (EOF != c && "\t" != c && "\n" != c && "\r" != c) { + this._fragment += c; + } + break; + } + + cursor++; + } + } + + function clear() { + this._scheme = ""; + this._schemeData = ""; + this._username = ""; + this._password = null; + this._host = ""; + this._port = ""; + this._path = []; + this._query = ""; + this._fragment = ""; + this._isInvalid = false; + this._isRelative = false; + } + + // Does not process domain names or IP addresses. + // Does not handle encoding for the query parameter. + function jURL(url, base /* , encoding */) { + if (base !== undefined && !(base instanceof jURL)) + base = new jURL(String(base)); + + url = String(url); + + this._url = url; + clear.call(this); + + var input = url.replace(/^[ \t\r\n\f]+|[ \t\r\n\f]+$/g, ""); + // encoding = encoding || 'utf-8' + + parse.call(this, input, null, base); + } + + jURL.prototype = { + toString: function() { + return this.href; + }, + get href() { + if (this._isInvalid) return this._url; + + var authority = ""; + if ("" != this._username || null != this._password) { + authority = + this._username + + (null != this._password ? ":" + this._password : "") + + "@"; + } + + return ( + this.protocol + + (this._isRelative ? "//" + authority + this.host : "") + + this.pathname + + this._query + + this._fragment + ); + }, + set href(href) { + clear.call(this); + parse.call(this, href); + }, + + get protocol() { + return this._scheme + ":"; + }, + set protocol(protocol) { + if (this._isInvalid) return; + parse.call(this, protocol + ":", "scheme start"); + }, + + get host() { + return this._isInvalid + ? "" + : this._port + ? this._host + ":" + this._port + : this._host; + }, + set host(host) { + if (this._isInvalid || !this._isRelative) return; + parse.call(this, host, "host"); + }, + + get hostname() { + return this._host; + }, + set hostname(hostname) { + if (this._isInvalid || !this._isRelative) return; + parse.call(this, hostname, "hostname"); + }, + + get port() { + return this._port; + }, + set port(port) { + if (this._isInvalid || !this._isRelative) return; + parse.call(this, port, "port"); + }, + + get pathname() { + return this._isInvalid + ? "" + : this._isRelative + ? "/" + this._path.join("/") + : this._schemeData; + }, + set pathname(pathname) { + if (this._isInvalid || !this._isRelative) return; + this._path = []; + parse.call(this, pathname, "relative path start"); + }, + + get search() { + return this._isInvalid || !this._query || "?" == this._query + ? "" + : this._query; + }, + set search(search) { + if (this._isInvalid || !this._isRelative) return; + this._query = "?"; + if ("?" == search[0]) search = search.slice(1); + parse.call(this, search, "query"); + }, + + get hash() { + return this._isInvalid || !this._fragment || "#" == this._fragment + ? "" + : this._fragment; + }, + set hash(hash) { + if (this._isInvalid) return; + this._fragment = "#"; + if ("#" == hash[0]) hash = hash.slice(1); + parse.call(this, hash, "fragment"); + }, + + get origin() { + var host; + if (this._isInvalid || !this._scheme) { + return ""; + } + // javascript: Gecko returns String(""), WebKit/Blink String("null") + // Gecko throws error for "data://" + // data: Gecko returns "", Blink returns "data://", WebKit returns "null" + // Gecko returns String("") for file: mailto: + // WebKit/Blink returns String("SCHEME://") for file: mailto: + switch (this._scheme) { + case "data": + case "file": + case "javascript": + case "mailto": + return "null"; + } + host = this.host; + if (!host) { + return ""; + } + return this._scheme + "://" + host; + } + }; + + // Copy over the static methods + var OriginalURL = scope.URL; + if (OriginalURL) { + jURL.createObjectURL = function(blob) { + // IE extension allows a second optional options argument. + // http://msdn.microsoft.com/en-us/library/ie/hh772302(v=vs.85).aspx + return OriginalURL.createObjectURL.apply(OriginalURL, arguments); + }; + jURL.revokeObjectURL = function(url) { + OriginalURL.revokeObjectURL(url); + }; + } + + scope.URL = jURL; +})(window); |