[Pkg-javascript-commits] [pdf.js] 100/414: Use URL constructor for combineURL.
David Prévot
taffit at moszumanska.debian.org
Tue Jun 28 17:12:10 UTC 2016
This is an automated email from the git hooks/post-receive script.
taffit pushed a commit to branch master
in repository pdf.js.
commit e362c3b8fcbd738578dc8f6f3d2050edbb26330d
Author: Brendan Dahl <brendan.dahl at gmail.com>
Date: Thu Jan 7 17:07:24 2016 -0800
Use URL constructor for combineURL.
---
src/shared/util.js | 643 +++++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 620 insertions(+), 23 deletions(-)
diff --git a/src/shared/util.js b/src/shared/util.js
index 3efe137..83ab72b 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -290,29 +290,7 @@ function combineUrl(baseUrl, url) {
if (!url) {
return baseUrl;
}
- if (/^[a-z][a-z0-9+\-.]*:/i.test(url)) {
- return url;
- }
- var i;
- if (url.charAt(0) === '/') {
- // absolute path
- i = baseUrl.indexOf('://');
- if (url.charAt(1) === '/') {
- ++i;
- } else {
- i = baseUrl.indexOf('/', i + 3);
- }
- return baseUrl.substring(0, i) + url;
- } else {
- // relative path
- var pathLength = baseUrl.length;
- i = baseUrl.lastIndexOf('#');
- pathLength = i >= 0 ? i : pathLength;
- i = baseUrl.lastIndexOf('?', pathLength);
- pathLength = i >= 0 ? i : pathLength;
- var prefixLength = baseUrl.lastIndexOf('/', pathLength);
- return baseUrl.substring(0, prefixLength + 1) + url;
- }
+ return new URL(url, baseUrl).href;
}
// Validates if URL is safe and allowed, e.g. to avoid XSS.
@@ -1654,6 +1632,625 @@ function loadJpegStream(id, imageUrl, objs) {
img.src = imageUrl;
}
+//#if !(MOZCENTRAL)
+// Polyfill from https://github.com/Polymer/URL
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+(function checkURLConstructor(scope) {
+ /* jshint ignore:start */
+
+ // feature detect for URL constructor
+ var hasWorkingUrl = false;
+ if (typeof URL === 'function' && ('origin' in URL.prototype)) {
+ 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) {
+ this._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));
+
+ 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;
+ /* jshint ignore:end */
+})(globalScope);
+//#endif
+
exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
exports.OPS = OPS;
--
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