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mediocre-blog/assets/viz/2/goog/uri/uri.js

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// Copyright 2006 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview Class for parsing and formatting URIs.
*
* Use goog.Uri(string) to parse a URI string. Use goog.Uri.create(...) to
* create a new instance of the goog.Uri object from Uri parts.
*
* e.g: <code>var myUri = new goog.Uri(window.location);</code>
*
* Implements RFC 3986 for parsing/formatting URIs.
* http://www.ietf.org/rfc/rfc3986.txt
*
* Some changes have been made to the interface (more like .NETs), though the
* internal representation is now of un-encoded parts, this will change the
* behavior slightly.
*
* @author msamuel@google.com (Mike Samuel)
*/
goog.provide('goog.Uri');
goog.provide('goog.Uri.QueryData');
goog.require('goog.array');
goog.require('goog.asserts');
goog.require('goog.string');
goog.require('goog.structs');
goog.require('goog.structs.Map');
goog.require('goog.uri.utils');
goog.require('goog.uri.utils.ComponentIndex');
goog.require('goog.uri.utils.StandardQueryParam');
/**
* This class contains setters and getters for the parts of the URI.
* The <code>getXyz</code>/<code>setXyz</code> methods return the decoded part
* -- so<code>goog.Uri.parse('/foo%20bar').getPath()</code> will return the
* decoded path, <code>/foo bar</code>.
*
* Reserved characters (see RFC 3986 section 2.2) can be present in
* their percent-encoded form in scheme, domain, and path URI components and
* will not be auto-decoded. For example:
* <code>goog.Uri.parse('rel%61tive/path%2fto/resource').getPath()</code> will
* return <code>relative/path%2fto/resource</code>.
*
* The constructor accepts an optional unparsed, raw URI string. The parser
* is relaxed, so special characters that aren't escaped but don't cause
* ambiguities will not cause parse failures.
*
* All setters return <code>this</code> and so may be chained, a la
* <code>goog.Uri.parse('/foo').setFragment('part').toString()</code>.
*
* @param {*=} opt_uri Optional string URI to parse
* (use goog.Uri.create() to create a URI from parts), or if
* a goog.Uri is passed, a clone is created.
* @param {boolean=} opt_ignoreCase If true, #getParameterValue will ignore
* the case of the parameter name.
*
* @throws URIError If opt_uri is provided and URI is malformed (that is,
* if decodeURIComponent fails on any of the URI components).
* @constructor
* @struct
*/
goog.Uri = function(opt_uri, opt_ignoreCase) {
/**
* Scheme such as "http".
* @private {string}
*/
this.scheme_ = '';
/**
* User credentials in the form "username:password".
* @private {string}
*/
this.userInfo_ = '';
/**
* Domain part, e.g. "www.google.com".
* @private {string}
*/
this.domain_ = '';
/**
* Port, e.g. 8080.
* @private {?number}
*/
this.port_ = null;
/**
* Path, e.g. "/tests/img.png".
* @private {string}
*/
this.path_ = '';
/**
* The fragment without the #.
* @private {string}
*/
this.fragment_ = '';
/**
* Whether or not this Uri should be treated as Read Only.
* @private {boolean}
*/
this.isReadOnly_ = false;
/**
* Whether or not to ignore case when comparing query params.
* @private {boolean}
*/
this.ignoreCase_ = false;
/**
* Object representing query data.
* @private {!goog.Uri.QueryData}
*/
this.queryData_;
// Parse in the uri string
var m;
if (opt_uri instanceof goog.Uri) {
this.ignoreCase_ =
goog.isDef(opt_ignoreCase) ? opt_ignoreCase : opt_uri.getIgnoreCase();
this.setScheme(opt_uri.getScheme());
this.setUserInfo(opt_uri.getUserInfo());
this.setDomain(opt_uri.getDomain());
this.setPort(opt_uri.getPort());
this.setPath(opt_uri.getPath());
this.setQueryData(opt_uri.getQueryData().clone());
this.setFragment(opt_uri.getFragment());
} else if (opt_uri && (m = goog.uri.utils.split(String(opt_uri)))) {
this.ignoreCase_ = !!opt_ignoreCase;
// Set the parts -- decoding as we do so.
// COMPATIBILITY NOTE - In IE, unmatched fields may be empty strings,
// whereas in other browsers they will be undefined.
this.setScheme(m[goog.uri.utils.ComponentIndex.SCHEME] || '', true);
this.setUserInfo(m[goog.uri.utils.ComponentIndex.USER_INFO] || '', true);
this.setDomain(m[goog.uri.utils.ComponentIndex.DOMAIN] || '', true);
this.setPort(m[goog.uri.utils.ComponentIndex.PORT]);
this.setPath(m[goog.uri.utils.ComponentIndex.PATH] || '', true);
this.setQueryData(m[goog.uri.utils.ComponentIndex.QUERY_DATA] || '', true);
this.setFragment(m[goog.uri.utils.ComponentIndex.FRAGMENT] || '', true);
} else {
this.ignoreCase_ = !!opt_ignoreCase;
this.queryData_ = new goog.Uri.QueryData(null, null, this.ignoreCase_);
}
};
/**
* If true, we preserve the type of query parameters set programmatically.
*
* This means that if you set a parameter to a boolean, and then call
* getParameterValue, you will get a boolean back.
*
* If false, we will coerce parameters to strings, just as they would
* appear in real URIs.
*
* TODO(nicksantos): Remove this once people have time to fix all tests.
*
* @type {boolean}
*/
goog.Uri.preserveParameterTypesCompatibilityFlag = false;
/**
* Parameter name added to stop caching.
* @type {string}
*/
goog.Uri.RANDOM_PARAM = goog.uri.utils.StandardQueryParam.RANDOM;
/**
* @return {string} The string form of the url.
* @override
*/
goog.Uri.prototype.toString = function() {
var out = [];
var scheme = this.getScheme();
if (scheme) {
out.push(
goog.Uri.encodeSpecialChars_(
scheme, goog.Uri.reDisallowedInSchemeOrUserInfo_, true),
':');
}
var domain = this.getDomain();
if (domain || scheme == 'file') {
out.push('//');
var userInfo = this.getUserInfo();
if (userInfo) {
out.push(
goog.Uri.encodeSpecialChars_(
userInfo, goog.Uri.reDisallowedInSchemeOrUserInfo_, true),
'@');
}
out.push(goog.Uri.removeDoubleEncoding_(goog.string.urlEncode(domain)));
var port = this.getPort();
if (port != null) {
out.push(':', String(port));
}
}
var path = this.getPath();
if (path) {
if (this.hasDomain() && path.charAt(0) != '/') {
out.push('/');
}
out.push(
goog.Uri.encodeSpecialChars_(
path, path.charAt(0) == '/' ? goog.Uri.reDisallowedInAbsolutePath_ :
goog.Uri.reDisallowedInRelativePath_,
true));
}
var query = this.getEncodedQuery();
if (query) {
out.push('?', query);
}
var fragment = this.getFragment();
if (fragment) {
out.push(
'#', goog.Uri.encodeSpecialChars_(
fragment, goog.Uri.reDisallowedInFragment_));
}
return out.join('');
};
/**
* Resolves the given relative URI (a goog.Uri object), using the URI
* represented by this instance as the base URI.
*
* There are several kinds of relative URIs:<br>
* 1. foo - replaces the last part of the path, the whole query and fragment<br>
* 2. /foo - replaces the the path, the query and fragment<br>
* 3. //foo - replaces everything from the domain on. foo is a domain name<br>
* 4. ?foo - replace the query and fragment<br>
* 5. #foo - replace the fragment only
*
* Additionally, if relative URI has a non-empty path, all ".." and "."
* segments will be resolved, as described in RFC 3986.
*
* @param {!goog.Uri} relativeUri The relative URI to resolve.
* @return {!goog.Uri} The resolved URI.
*/
goog.Uri.prototype.resolve = function(relativeUri) {
var absoluteUri = this.clone();
// we satisfy these conditions by looking for the first part of relativeUri
// that is not blank and applying defaults to the rest
var overridden = relativeUri.hasScheme();
if (overridden) {
absoluteUri.setScheme(relativeUri.getScheme());
} else {
overridden = relativeUri.hasUserInfo();
}
if (overridden) {
absoluteUri.setUserInfo(relativeUri.getUserInfo());
} else {
overridden = relativeUri.hasDomain();
}
if (overridden) {
absoluteUri.setDomain(relativeUri.getDomain());
} else {
overridden = relativeUri.hasPort();
}
var path = relativeUri.getPath();
if (overridden) {
absoluteUri.setPort(relativeUri.getPort());
} else {
overridden = relativeUri.hasPath();
if (overridden) {
// resolve path properly
if (path.charAt(0) != '/') {
// path is relative
if (this.hasDomain() && !this.hasPath()) {
// RFC 3986, section 5.2.3, case 1
path = '/' + path;
} else {
// RFC 3986, section 5.2.3, case 2
var lastSlashIndex = absoluteUri.getPath().lastIndexOf('/');
if (lastSlashIndex != -1) {
path = absoluteUri.getPath().substr(0, lastSlashIndex + 1) + path;
}
}
}
path = goog.Uri.removeDotSegments(path);
}
}
if (overridden) {
absoluteUri.setPath(path);
} else {
overridden = relativeUri.hasQuery();
}
if (overridden) {
absoluteUri.setQueryData(relativeUri.getQueryData().clone());
} else {
overridden = relativeUri.hasFragment();
}
if (overridden) {
absoluteUri.setFragment(relativeUri.getFragment());
}
return absoluteUri;
};
/**
* Clones the URI instance.
* @return {!goog.Uri} New instance of the URI object.
*/
goog.Uri.prototype.clone = function() {
return new goog.Uri(this);
};
/**
* @return {string} The encoded scheme/protocol for the URI.
*/
goog.Uri.prototype.getScheme = function() {
return this.scheme_;
};
/**
* Sets the scheme/protocol.
* @throws URIError If opt_decode is true and newScheme is malformed (that is,
* if decodeURIComponent fails).
* @param {string} newScheme New scheme value.
* @param {boolean=} opt_decode Optional param for whether to decode new value.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.setScheme = function(newScheme, opt_decode) {
this.enforceReadOnly();
this.scheme_ =
opt_decode ? goog.Uri.decodeOrEmpty_(newScheme, true) : newScheme;
// remove an : at the end of the scheme so somebody can pass in
// window.location.protocol
if (this.scheme_) {
this.scheme_ = this.scheme_.replace(/:$/, '');
}
return this;
};
/**
* @return {boolean} Whether the scheme has been set.
*/
goog.Uri.prototype.hasScheme = function() {
return !!this.scheme_;
};
/**
* @return {string} The decoded user info.
*/
goog.Uri.prototype.getUserInfo = function() {
return this.userInfo_;
};
/**
* Sets the userInfo.
* @throws URIError If opt_decode is true and newUserInfo is malformed (that is,
* if decodeURIComponent fails).
* @param {string} newUserInfo New userInfo value.
* @param {boolean=} opt_decode Optional param for whether to decode new value.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.setUserInfo = function(newUserInfo, opt_decode) {
this.enforceReadOnly();
this.userInfo_ =
opt_decode ? goog.Uri.decodeOrEmpty_(newUserInfo) : newUserInfo;
return this;
};
/**
* @return {boolean} Whether the user info has been set.
*/
goog.Uri.prototype.hasUserInfo = function() {
return !!this.userInfo_;
};
/**
* @return {string} The decoded domain.
*/
goog.Uri.prototype.getDomain = function() {
return this.domain_;
};
/**
* Sets the domain.
* @throws URIError If opt_decode is true and newDomain is malformed (that is,
* if decodeURIComponent fails).
* @param {string} newDomain New domain value.
* @param {boolean=} opt_decode Optional param for whether to decode new value.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.setDomain = function(newDomain, opt_decode) {
this.enforceReadOnly();
this.domain_ =
opt_decode ? goog.Uri.decodeOrEmpty_(newDomain, true) : newDomain;
return this;
};
/**
* @return {boolean} Whether the domain has been set.
*/
goog.Uri.prototype.hasDomain = function() {
return !!this.domain_;
};
/**
* @return {?number} The port number.
*/
goog.Uri.prototype.getPort = function() {
return this.port_;
};
/**
* Sets the port number.
* @param {*} newPort Port number. Will be explicitly casted to a number.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.setPort = function(newPort) {
this.enforceReadOnly();
if (newPort) {
newPort = Number(newPort);
if (isNaN(newPort) || newPort < 0) {
throw Error('Bad port number ' + newPort);
}
this.port_ = newPort;
} else {
this.port_ = null;
}
return this;
};
/**
* @return {boolean} Whether the port has been set.
*/
goog.Uri.prototype.hasPort = function() {
return this.port_ != null;
};
/**
* @return {string} The decoded path.
*/
goog.Uri.prototype.getPath = function() {
return this.path_;
};
/**
* Sets the path.
* @throws URIError If opt_decode is true and newPath is malformed (that is,
* if decodeURIComponent fails).
* @param {string} newPath New path value.
* @param {boolean=} opt_decode Optional param for whether to decode new value.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.setPath = function(newPath, opt_decode) {
this.enforceReadOnly();
this.path_ = opt_decode ? goog.Uri.decodeOrEmpty_(newPath, true) : newPath;
return this;
};
/**
* @return {boolean} Whether the path has been set.
*/
goog.Uri.prototype.hasPath = function() {
return !!this.path_;
};
/**
* @return {boolean} Whether the query string has been set.
*/
goog.Uri.prototype.hasQuery = function() {
return this.queryData_.toString() !== '';
};
/**
* Sets the query data.
* @param {goog.Uri.QueryData|string|undefined} queryData QueryData object.
* @param {boolean=} opt_decode Optional param for whether to decode new value.
* Applies only if queryData is a string.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.setQueryData = function(queryData, opt_decode) {
this.enforceReadOnly();
if (queryData instanceof goog.Uri.QueryData) {
this.queryData_ = queryData;
this.queryData_.setIgnoreCase(this.ignoreCase_);
} else {
if (!opt_decode) {
// QueryData accepts encoded query string, so encode it if
// opt_decode flag is not true.
queryData = goog.Uri.encodeSpecialChars_(
queryData, goog.Uri.reDisallowedInQuery_);
}
this.queryData_ = new goog.Uri.QueryData(queryData, null, this.ignoreCase_);
}
return this;
};
/**
* Sets the URI query.
* @param {string} newQuery New query value.
* @param {boolean=} opt_decode Optional param for whether to decode new value.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.setQuery = function(newQuery, opt_decode) {
return this.setQueryData(newQuery, opt_decode);
};
/**
* @return {string} The encoded URI query, not including the ?.
*/
goog.Uri.prototype.getEncodedQuery = function() {
return this.queryData_.toString();
};
/**
* @return {string} The decoded URI query, not including the ?.
*/
goog.Uri.prototype.getDecodedQuery = function() {
return this.queryData_.toDecodedString();
};
/**
* Returns the query data.
* @return {!goog.Uri.QueryData} QueryData object.
*/
goog.Uri.prototype.getQueryData = function() {
return this.queryData_;
};
/**
* @return {string} The encoded URI query, not including the ?.
*
* Warning: This method, unlike other getter methods, returns encoded
* value, instead of decoded one.
*/
goog.Uri.prototype.getQuery = function() {
return this.getEncodedQuery();
};
/**
* Sets the value of the named query parameters, clearing previous values for
* that key.
*
* @param {string} key The parameter to set.
* @param {*} value The new value.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.setParameterValue = function(key, value) {
this.enforceReadOnly();
this.queryData_.set(key, value);
return this;
};
/**
* Sets the values of the named query parameters, clearing previous values for
* that key. Not new values will currently be moved to the end of the query
* string.
*
* So, <code>goog.Uri.parse('foo?a=b&c=d&e=f').setParameterValues('c', ['new'])
* </code> yields <tt>foo?a=b&e=f&c=new</tt>.</p>
*
* @param {string} key The parameter to set.
* @param {*} values The new values. If values is a single
* string then it will be treated as the sole value.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.setParameterValues = function(key, values) {
this.enforceReadOnly();
if (!goog.isArray(values)) {
values = [String(values)];
}
this.queryData_.setValues(key, values);
return this;
};
/**
* Returns the value<b>s</b> for a given cgi parameter as a list of decoded
* query parameter values.
* @param {string} name The parameter to get values for.
* @return {!Array<?>} The values for a given cgi parameter as a list of
* decoded query parameter values.
*/
goog.Uri.prototype.getParameterValues = function(name) {
return this.queryData_.getValues(name);
};
/**
* Returns the first value for a given cgi parameter or undefined if the given
* parameter name does not appear in the query string.
* @param {string} paramName Unescaped parameter name.
* @return {string|undefined} The first value for a given cgi parameter or
* undefined if the given parameter name does not appear in the query
* string.
*/
goog.Uri.prototype.getParameterValue = function(paramName) {
// NOTE(nicksantos): This type-cast is a lie when
// preserveParameterTypesCompatibilityFlag is set to true.
// But this should only be set to true in tests.
return /** @type {string|undefined} */ (this.queryData_.get(paramName));
};
/**
* @return {string} The URI fragment, not including the #.
*/
goog.Uri.prototype.getFragment = function() {
return this.fragment_;
};
/**
* Sets the URI fragment.
* @throws URIError If opt_decode is true and newFragment is malformed (that is,
* if decodeURIComponent fails).
* @param {string} newFragment New fragment value.
* @param {boolean=} opt_decode Optional param for whether to decode new value.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.setFragment = function(newFragment, opt_decode) {
this.enforceReadOnly();
this.fragment_ =
opt_decode ? goog.Uri.decodeOrEmpty_(newFragment) : newFragment;
return this;
};
/**
* @return {boolean} Whether the URI has a fragment set.
*/
goog.Uri.prototype.hasFragment = function() {
return !!this.fragment_;
};
/**
* Returns true if this has the same domain as that of uri2.
* @param {!goog.Uri} uri2 The URI object to compare to.
* @return {boolean} true if same domain; false otherwise.
*/
goog.Uri.prototype.hasSameDomainAs = function(uri2) {
return ((!this.hasDomain() && !uri2.hasDomain()) ||
this.getDomain() == uri2.getDomain()) &&
((!this.hasPort() && !uri2.hasPort()) ||
this.getPort() == uri2.getPort());
};
/**
* Adds a random parameter to the Uri.
* @return {!goog.Uri} Reference to this Uri object.
*/
goog.Uri.prototype.makeUnique = function() {
this.enforceReadOnly();
this.setParameterValue(goog.Uri.RANDOM_PARAM, goog.string.getRandomString());
return this;
};
/**
* Removes the named query parameter.
*
* @param {string} key The parameter to remove.
* @return {!goog.Uri} Reference to this URI object.
*/
goog.Uri.prototype.removeParameter = function(key) {
this.enforceReadOnly();
this.queryData_.remove(key);
return this;
};
/**
* Sets whether Uri is read only. If this goog.Uri is read-only,
* enforceReadOnly_ will be called at the start of any function that may modify
* this Uri.
* @param {boolean} isReadOnly whether this goog.Uri should be read only.
* @return {!goog.Uri} Reference to this Uri object.
*/
goog.Uri.prototype.setReadOnly = function(isReadOnly) {
this.isReadOnly_ = isReadOnly;
return this;
};
/**
* @return {boolean} Whether the URI is read only.
*/
goog.Uri.prototype.isReadOnly = function() {
return this.isReadOnly_;
};
/**
* Checks if this Uri has been marked as read only, and if so, throws an error.
* This should be called whenever any modifying function is called.
*/
goog.Uri.prototype.enforceReadOnly = function() {
if (this.isReadOnly_) {
throw Error('Tried to modify a read-only Uri');
}
};
/**
* Sets whether to ignore case.
* NOTE: If there are already key/value pairs in the QueryData, and
* ignoreCase_ is set to false, the keys will all be lower-cased.
* @param {boolean} ignoreCase whether this goog.Uri should ignore case.
* @return {!goog.Uri} Reference to this Uri object.
*/
goog.Uri.prototype.setIgnoreCase = function(ignoreCase) {
this.ignoreCase_ = ignoreCase;
if (this.queryData_) {
this.queryData_.setIgnoreCase(ignoreCase);
}
return this;
};
/**
* @return {boolean} Whether to ignore case.
*/
goog.Uri.prototype.getIgnoreCase = function() {
return this.ignoreCase_;
};
//==============================================================================
// Static members
//==============================================================================
/**
* Creates a uri from the string form. Basically an alias of new goog.Uri().
* If a Uri object is passed to parse then it will return a clone of the object.
*
* @throws URIError If parsing the URI is malformed. The passed URI components
* should all be parseable by decodeURIComponent.
* @param {*} uri Raw URI string or instance of Uri
* object.
* @param {boolean=} opt_ignoreCase Whether to ignore the case of parameter
* names in #getParameterValue.
* @return {!goog.Uri} The new URI object.
*/
goog.Uri.parse = function(uri, opt_ignoreCase) {
return uri instanceof goog.Uri ? uri.clone() :
new goog.Uri(uri, opt_ignoreCase);
};
/**
* Creates a new goog.Uri object from unencoded parts.
*
* @param {?string=} opt_scheme Scheme/protocol or full URI to parse.
* @param {?string=} opt_userInfo username:password.
* @param {?string=} opt_domain www.google.com.
* @param {?number=} opt_port 9830.
* @param {?string=} opt_path /some/path/to/a/file.html.
* @param {string|goog.Uri.QueryData=} opt_query a=1&b=2.
* @param {?string=} opt_fragment The fragment without the #.
* @param {boolean=} opt_ignoreCase Whether to ignore parameter name case in
* #getParameterValue.
*
* @return {!goog.Uri} The new URI object.
*/
goog.Uri.create = function(
opt_scheme, opt_userInfo, opt_domain, opt_port, opt_path, opt_query,
opt_fragment, opt_ignoreCase) {
var uri = new goog.Uri(null, opt_ignoreCase);
// Only set the parts if they are defined and not empty strings.
opt_scheme && uri.setScheme(opt_scheme);
opt_userInfo && uri.setUserInfo(opt_userInfo);
opt_domain && uri.setDomain(opt_domain);
opt_port && uri.setPort(opt_port);
opt_path && uri.setPath(opt_path);
opt_query && uri.setQueryData(opt_query);
opt_fragment && uri.setFragment(opt_fragment);
return uri;
};
/**
* Resolves a relative Uri against a base Uri, accepting both strings and
* Uri objects.
*
* @param {*} base Base Uri.
* @param {*} rel Relative Uri.
* @return {!goog.Uri} Resolved uri.
*/
goog.Uri.resolve = function(base, rel) {
if (!(base instanceof goog.Uri)) {
base = goog.Uri.parse(base);
}
if (!(rel instanceof goog.Uri)) {
rel = goog.Uri.parse(rel);
}
return base.resolve(rel);
};
/**
* Removes dot segments in given path component, as described in
* RFC 3986, section 5.2.4.
*
* @param {string} path A non-empty path component.
* @return {string} Path component with removed dot segments.
*/
goog.Uri.removeDotSegments = function(path) {
if (path == '..' || path == '.') {
return '';
} else if (
!goog.string.contains(path, './') && !goog.string.contains(path, '/.')) {
// This optimization detects uris which do not contain dot-segments,
// and as a consequence do not require any processing.
return path;
} else {
var leadingSlash = goog.string.startsWith(path, '/');
var segments = path.split('/');
var out = [];
for (var pos = 0; pos < segments.length;) {
var segment = segments[pos++];
if (segment == '.') {
if (leadingSlash && pos == segments.length) {
out.push('');
}
} else if (segment == '..') {
if (out.length > 1 || out.length == 1 && out[0] != '') {
out.pop();
}
if (leadingSlash && pos == segments.length) {
out.push('');
}
} else {
out.push(segment);
leadingSlash = true;
}
}
return out.join('/');
}
};
/**
* Decodes a value or returns the empty string if it isn't defined or empty.
* @throws URIError If decodeURIComponent fails to decode val.
* @param {string|undefined} val Value to decode.
* @param {boolean=} opt_preserveReserved If true, restricted characters will
* not be decoded.
* @return {string} Decoded value.
* @private
*/
goog.Uri.decodeOrEmpty_ = function(val, opt_preserveReserved) {
// Don't use UrlDecode() here because val is not a query parameter.
if (!val) {
return '';
}
// decodeURI has the same output for '%2f' and '%252f'. We double encode %25
// so that we can distinguish between the 2 inputs. This is later undone by
// removeDoubleEncoding_.
return opt_preserveReserved ? decodeURI(val.replace(/%25/g, '%2525')) :
decodeURIComponent(val);
};
/**
* If unescapedPart is non null, then escapes any characters in it that aren't
* valid characters in a url and also escapes any special characters that
* appear in extra.
*
* @param {*} unescapedPart The string to encode.
* @param {RegExp} extra A character set of characters in [\01-\177].
* @param {boolean=} opt_removeDoubleEncoding If true, remove double percent
* encoding.
* @return {?string} null iff unescapedPart == null.
* @private
*/
goog.Uri.encodeSpecialChars_ = function(
unescapedPart, extra, opt_removeDoubleEncoding) {
if (goog.isString(unescapedPart)) {
var encoded = encodeURI(unescapedPart).replace(extra, goog.Uri.encodeChar_);
if (opt_removeDoubleEncoding) {
// encodeURI double-escapes %XX sequences used to represent restricted
// characters in some URI components, remove the double escaping here.
encoded = goog.Uri.removeDoubleEncoding_(encoded);
}
return encoded;
}
return null;
};
/**
* Converts a character in [\01-\177] to its unicode character equivalent.
* @param {string} ch One character string.
* @return {string} Encoded string.
* @private
*/
goog.Uri.encodeChar_ = function(ch) {
var n = ch.charCodeAt(0);
return '%' + ((n >> 4) & 0xf).toString(16) + (n & 0xf).toString(16);
};
/**
* Removes double percent-encoding from a string.
* @param {string} doubleEncodedString String
* @return {string} String with double encoding removed.
* @private
*/
goog.Uri.removeDoubleEncoding_ = function(doubleEncodedString) {
return doubleEncodedString.replace(/%25([0-9a-fA-F]{2})/g, '%$1');
};
/**
* Regular expression for characters that are disallowed in the scheme or
* userInfo part of the URI.
* @type {RegExp}
* @private
*/
goog.Uri.reDisallowedInSchemeOrUserInfo_ = /[#\/\?@]/g;
/**
* Regular expression for characters that are disallowed in a relative path.
* Colon is included due to RFC 3986 3.3.
* @type {RegExp}
* @private
*/
goog.Uri.reDisallowedInRelativePath_ = /[\#\?:]/g;
/**
* Regular expression for characters that are disallowed in an absolute path.
* @type {RegExp}
* @private
*/
goog.Uri.reDisallowedInAbsolutePath_ = /[\#\?]/g;
/**
* Regular expression for characters that are disallowed in the query.
* @type {RegExp}
* @private
*/
goog.Uri.reDisallowedInQuery_ = /[\#\?@]/g;
/**
* Regular expression for characters that are disallowed in the fragment.
* @type {RegExp}
* @private
*/
goog.Uri.reDisallowedInFragment_ = /#/g;
/**
* Checks whether two URIs have the same domain.
* @param {string} uri1String First URI string.
* @param {string} uri2String Second URI string.
* @return {boolean} true if the two URIs have the same domain; false otherwise.
*/
goog.Uri.haveSameDomain = function(uri1String, uri2String) {
// Differs from goog.uri.utils.haveSameDomain, since this ignores scheme.
// TODO(gboyer): Have this just call goog.uri.util.haveSameDomain.
var pieces1 = goog.uri.utils.split(uri1String);
var pieces2 = goog.uri.utils.split(uri2String);
return pieces1[goog.uri.utils.ComponentIndex.DOMAIN] ==
pieces2[goog.uri.utils.ComponentIndex.DOMAIN] &&
pieces1[goog.uri.utils.ComponentIndex.PORT] ==
pieces2[goog.uri.utils.ComponentIndex.PORT];
};
/**
* Class used to represent URI query parameters. It is essentially a hash of
* name-value pairs, though a name can be present more than once.
*
* Has the same interface as the collections in goog.structs.
*
* @param {?string=} opt_query Optional encoded query string to parse into
* the object.
* @param {goog.Uri=} opt_uri Optional uri object that should have its
* cache invalidated when this object updates. Deprecated -- this
* is no longer required.
* @param {boolean=} opt_ignoreCase If true, ignore the case of the parameter
* name in #get.
* @constructor
* @struct
* @final
*/
goog.Uri.QueryData = function(opt_query, opt_uri, opt_ignoreCase) {
/**
* The map containing name/value or name/array-of-values pairs.
* May be null if it requires parsing from the query string.
*
* We need to use a Map because we cannot guarantee that the key names will
* not be problematic for IE.
*
* @private {goog.structs.Map<string, !Array<*>>}
*/
this.keyMap_ = null;
/**
* The number of params, or null if it requires computing.
* @private {?number}
*/
this.count_ = null;
/**
* Encoded query string, or null if it requires computing from the key map.
* @private {?string}
*/
this.encodedQuery_ = opt_query || null;
/**
* If true, ignore the case of the parameter name in #get.
* @private {boolean}
*/
this.ignoreCase_ = !!opt_ignoreCase;
};
/**
* If the underlying key map is not yet initialized, it parses the
* query string and fills the map with parsed data.
* @private
*/
goog.Uri.QueryData.prototype.ensureKeyMapInitialized_ = function() {
if (!this.keyMap_) {
this.keyMap_ = new goog.structs.Map();
this.count_ = 0;
if (this.encodedQuery_) {
var self = this;
goog.uri.utils.parseQueryData(this.encodedQuery_, function(name, value) {
self.add(goog.string.urlDecode(name), value);
});
}
}
};
/**
* Creates a new query data instance from a map of names and values.
*
* @param {!goog.structs.Map<string, ?>|!Object} map Map of string parameter
* names to parameter value. If parameter value is an array, it is
* treated as if the key maps to each individual value in the
* array.
* @param {goog.Uri=} opt_uri URI object that should have its cache
* invalidated when this object updates.
* @param {boolean=} opt_ignoreCase If true, ignore the case of the parameter
* name in #get.
* @return {!goog.Uri.QueryData} The populated query data instance.
*/
goog.Uri.QueryData.createFromMap = function(map, opt_uri, opt_ignoreCase) {
var keys = goog.structs.getKeys(map);
if (typeof keys == 'undefined') {
throw Error('Keys are undefined');
}
var queryData = new goog.Uri.QueryData(null, null, opt_ignoreCase);
var values = goog.structs.getValues(map);
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
var value = values[i];
if (!goog.isArray(value)) {
queryData.add(key, value);
} else {
queryData.setValues(key, value);
}
}
return queryData;
};
/**
* Creates a new query data instance from parallel arrays of parameter names
* and values. Allows for duplicate parameter names. Throws an error if the
* lengths of the arrays differ.
*
* @param {!Array<string>} keys Parameter names.
* @param {!Array<?>} values Parameter values.
* @param {goog.Uri=} opt_uri URI object that should have its cache
* invalidated when this object updates.
* @param {boolean=} opt_ignoreCase If true, ignore the case of the parameter
* name in #get.
* @return {!goog.Uri.QueryData} The populated query data instance.
*/
goog.Uri.QueryData.createFromKeysValues = function(
keys, values, opt_uri, opt_ignoreCase) {
if (keys.length != values.length) {
throw Error('Mismatched lengths for keys/values');
}
var queryData = new goog.Uri.QueryData(null, null, opt_ignoreCase);
for (var i = 0; i < keys.length; i++) {
queryData.add(keys[i], values[i]);
}
return queryData;
};
/**
* @return {?number} The number of parameters.
*/
goog.Uri.QueryData.prototype.getCount = function() {
this.ensureKeyMapInitialized_();
return this.count_;
};
/**
* Adds a key value pair.
* @param {string} key Name.
* @param {*} value Value.
* @return {!goog.Uri.QueryData} Instance of this object.
*/
goog.Uri.QueryData.prototype.add = function(key, value) {
this.ensureKeyMapInitialized_();
this.invalidateCache_();
key = this.getKeyName_(key);
var values = this.keyMap_.get(key);
if (!values) {
this.keyMap_.set(key, (values = []));
}
values.push(value);
this.count_ = goog.asserts.assertNumber(this.count_) + 1;
return this;
};
/**
* Removes all the params with the given key.
* @param {string} key Name.
* @return {boolean} Whether any parameter was removed.
*/
goog.Uri.QueryData.prototype.remove = function(key) {
this.ensureKeyMapInitialized_();
key = this.getKeyName_(key);
if (this.keyMap_.containsKey(key)) {
this.invalidateCache_();
// Decrement parameter count.
this.count_ =
goog.asserts.assertNumber(this.count_) - this.keyMap_.get(key).length;
return this.keyMap_.remove(key);
}
return false;
};
/**
* Clears the parameters.
*/
goog.Uri.QueryData.prototype.clear = function() {
this.invalidateCache_();
this.keyMap_ = null;
this.count_ = 0;
};
/**
* @return {boolean} Whether we have any parameters.
*/
goog.Uri.QueryData.prototype.isEmpty = function() {
this.ensureKeyMapInitialized_();
return this.count_ == 0;
};
/**
* Whether there is a parameter with the given name
* @param {string} key The parameter name to check for.
* @return {boolean} Whether there is a parameter with the given name.
*/
goog.Uri.QueryData.prototype.containsKey = function(key) {
this.ensureKeyMapInitialized_();
key = this.getKeyName_(key);
return this.keyMap_.containsKey(key);
};
/**
* Whether there is a parameter with the given value.
* @param {*} value The value to check for.
* @return {boolean} Whether there is a parameter with the given value.
*/
goog.Uri.QueryData.prototype.containsValue = function(value) {
// NOTE(arv): This solution goes through all the params even if it was the
// first param. We can get around this by not reusing code or by switching to
// iterators.
var vals = this.getValues();
return goog.array.contains(vals, value);
};
/**
* Runs a callback on every key-value pair in the map, including duplicate keys.
* This won't maintain original order when duplicate keys are interspersed (like
* getKeys() / getValues()).
* @param {function(this:SCOPE, ?, string, !goog.Uri.QueryData)} f
* @param {SCOPE=} opt_scope The value of "this" inside f.
* @template SCOPE
*/
goog.Uri.QueryData.prototype.forEach = function(f, opt_scope) {
this.ensureKeyMapInitialized_();
this.keyMap_.forEach(function(values, key) {
goog.array.forEach(values, function(value) {
f.call(opt_scope, value, key, this);
}, this);
}, this);
};
/**
* Returns all the keys of the parameters. If a key is used multiple times
* it will be included multiple times in the returned array
* @return {!Array<string>} All the keys of the parameters.
*/
goog.Uri.QueryData.prototype.getKeys = function() {
this.ensureKeyMapInitialized_();
// We need to get the values to know how many keys to add.
var vals = this.keyMap_.getValues();
var keys = this.keyMap_.getKeys();
var rv = [];
for (var i = 0; i < keys.length; i++) {
var val = vals[i];
for (var j = 0; j < val.length; j++) {
rv.push(keys[i]);
}
}
return rv;
};
/**
* Returns all the values of the parameters with the given name. If the query
* data has no such key this will return an empty array. If no key is given
* all values wil be returned.
* @param {string=} opt_key The name of the parameter to get the values for.
* @return {!Array<?>} All the values of the parameters with the given name.
*/
goog.Uri.QueryData.prototype.getValues = function(opt_key) {
this.ensureKeyMapInitialized_();
var rv = [];
if (goog.isString(opt_key)) {
if (this.containsKey(opt_key)) {
rv = goog.array.concat(rv, this.keyMap_.get(this.getKeyName_(opt_key)));
}
} else {
// Return all values.
var values = this.keyMap_.getValues();
for (var i = 0; i < values.length; i++) {
rv = goog.array.concat(rv, values[i]);
}
}
return rv;
};
/**
* Sets a key value pair and removes all other keys with the same value.
*
* @param {string} key Name.
* @param {*} value Value.
* @return {!goog.Uri.QueryData} Instance of this object.
*/
goog.Uri.QueryData.prototype.set = function(key, value) {
this.ensureKeyMapInitialized_();
this.invalidateCache_();
// TODO(chrishenry): This could be better written as
// this.remove(key), this.add(key, value), but that would reorder
// the key (since the key is first removed and then added at the
// end) and we would have to fix unit tests that depend on key
// ordering.
key = this.getKeyName_(key);
if (this.containsKey(key)) {
this.count_ =
goog.asserts.assertNumber(this.count_) - this.keyMap_.get(key).length;
}
this.keyMap_.set(key, [value]);
this.count_ = goog.asserts.assertNumber(this.count_) + 1;
return this;
};
/**
* Returns the first value associated with the key. If the query data has no
* such key this will return undefined or the optional default.
* @param {string} key The name of the parameter to get the value for.
* @param {*=} opt_default The default value to return if the query data
* has no such key.
* @return {*} The first string value associated with the key, or opt_default
* if there's no value.
*/
goog.Uri.QueryData.prototype.get = function(key, opt_default) {
var values = key ? this.getValues(key) : [];
if (goog.Uri.preserveParameterTypesCompatibilityFlag) {
return values.length > 0 ? values[0] : opt_default;
} else {
return values.length > 0 ? String(values[0]) : opt_default;
}
};
/**
* Sets the values for a key. If the key already exists, this will
* override all of the existing values that correspond to the key.
* @param {string} key The key to set values for.
* @param {!Array<?>} values The values to set.
*/
goog.Uri.QueryData.prototype.setValues = function(key, values) {
this.remove(key);
if (values.length > 0) {
this.invalidateCache_();
this.keyMap_.set(this.getKeyName_(key), goog.array.clone(values));
this.count_ = goog.asserts.assertNumber(this.count_) + values.length;
}
};
/**
* @return {string} Encoded query string.
* @override
*/
goog.Uri.QueryData.prototype.toString = function() {
if (this.encodedQuery_) {
return this.encodedQuery_;
}
if (!this.keyMap_) {
return '';
}
var sb = [];
// In the past, we use this.getKeys() and this.getVals(), but that
// generates a lot of allocations as compared to simply iterating
// over the keys.
var keys = this.keyMap_.getKeys();
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
var encodedKey = goog.string.urlEncode(key);
var val = this.getValues(key);
for (var j = 0; j < val.length; j++) {
var param = encodedKey;
// Ensure that null and undefined are encoded into the url as
// literal strings.
if (val[j] !== '') {
param += '=' + goog.string.urlEncode(val[j]);
}
sb.push(param);
}
}
return this.encodedQuery_ = sb.join('&');
};
/**
* @throws URIError If URI is malformed (that is, if decodeURIComponent fails on
* any of the URI components).
* @return {string} Decoded query string.
*/
goog.Uri.QueryData.prototype.toDecodedString = function() {
return goog.Uri.decodeOrEmpty_(this.toString());
};
/**
* Invalidate the cache.
* @private
*/
goog.Uri.QueryData.prototype.invalidateCache_ = function() {
this.encodedQuery_ = null;
};
/**
* Removes all keys that are not in the provided list. (Modifies this object.)
* @param {Array<string>} keys The desired keys.
* @return {!goog.Uri.QueryData} a reference to this object.
*/
goog.Uri.QueryData.prototype.filterKeys = function(keys) {
this.ensureKeyMapInitialized_();
this.keyMap_.forEach(function(value, key) {
if (!goog.array.contains(keys, key)) {
this.remove(key);
}
}, this);
return this;
};
/**
* Clone the query data instance.
* @return {!goog.Uri.QueryData} New instance of the QueryData object.
*/
goog.Uri.QueryData.prototype.clone = function() {
var rv = new goog.Uri.QueryData();
rv.encodedQuery_ = this.encodedQuery_;
if (this.keyMap_) {
rv.keyMap_ = this.keyMap_.clone();
rv.count_ = this.count_;
}
return rv;
};
/**
* Helper function to get the key name from a JavaScript object. Converts
* the object to a string, and to lower case if necessary.
* @private
* @param {*} arg The object to get a key name from.
* @return {string} valid key name which can be looked up in #keyMap_.
*/
goog.Uri.QueryData.prototype.getKeyName_ = function(arg) {
var keyName = String(arg);
if (this.ignoreCase_) {
keyName = keyName.toLowerCase();
}
return keyName;
};
/**
* Ignore case in parameter names.
* NOTE: If there are already key/value pairs in the QueryData, and
* ignoreCase_ is set to false, the keys will all be lower-cased.
* @param {boolean} ignoreCase whether this goog.Uri should ignore case.
*/
goog.Uri.QueryData.prototype.setIgnoreCase = function(ignoreCase) {
var resetKeys = ignoreCase && !this.ignoreCase_;
if (resetKeys) {
this.ensureKeyMapInitialized_();
this.invalidateCache_();
this.keyMap_.forEach(function(value, key) {
var lowerCase = key.toLowerCase();
if (key != lowerCase) {
this.remove(key);
this.setValues(lowerCase, value);
}
}, this);
}
this.ignoreCase_ = ignoreCase;
};
/**
* Extends a query data object with another query data or map like object. This
* operates 'in-place', it does not create a new QueryData object.
*
* @param {...(?goog.Uri.QueryData|?goog.structs.Map<?, ?>|?Object)} var_args
* The object from which key value pairs will be copied.
* @suppress {deprecated} Use deprecated goog.structs.forEach to allow different
* types of parameters.
*/
goog.Uri.QueryData.prototype.extend = function(var_args) {
for (var i = 0; i < arguments.length; i++) {
var data = arguments[i];
goog.structs.forEach(
data, function(value, key) { this.add(key, value); }, this);
}
};
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