From 4f01edb9230f58ff84b0dd892c931ec8ac9aad55 Mon Sep 17 00:00:00 2001
From: Brian Picciano <mediocregopher@gmail.com>
Date: Tue, 13 Sep 2022 12:56:08 +0200
Subject: move src out of srv, clean up default.nix and Makefile

---
 srv/src/http/static/viz/2/goog/html/safestyle.js | 560 -----------------------
 1 file changed, 560 deletions(-)
 delete mode 100644 srv/src/http/static/viz/2/goog/html/safestyle.js

(limited to 'srv/src/http/static/viz/2/goog/html/safestyle.js')

diff --git a/srv/src/http/static/viz/2/goog/html/safestyle.js b/srv/src/http/static/viz/2/goog/html/safestyle.js
deleted file mode 100644
index 506a475..0000000
--- a/srv/src/http/static/viz/2/goog/html/safestyle.js
+++ /dev/null
@@ -1,560 +0,0 @@
-// Copyright 2014 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 The SafeStyle type and its builders.
- *
- * TODO(xtof): Link to document stating type contract.
- */
-
-goog.provide('goog.html.SafeStyle');
-
-goog.require('goog.array');
-goog.require('goog.asserts');
-goog.require('goog.html.SafeUrl');
-goog.require('goog.string');
-goog.require('goog.string.Const');
-goog.require('goog.string.TypedString');
-
-
-
-/**
- * A string-like object which represents a sequence of CSS declarations
- * ({@code propertyName1: propertyvalue1; propertyName2: propertyValue2; ...})
- * and that carries the security type contract that its value, as a string,
- * will not cause untrusted script execution (XSS) when evaluated as CSS in a
- * browser.
- *
- * Instances of this type must be created via the factory methods
- * ({@code goog.html.SafeStyle.create} or
- * {@code goog.html.SafeStyle.fromConstant}) and not by invoking its
- * constructor. The constructor intentionally takes no parameters and the type
- * is immutable; hence only a default instance corresponding to the empty string
- * can be obtained via constructor invocation.
- *
- * SafeStyle's string representation can safely be:
- * <ul>
- *   <li>Interpolated as the content of a *quoted* HTML style attribute.
- *       However, the SafeStyle string *must be HTML-attribute-escaped* before
- *       interpolation.
- *   <li>Interpolated as the content of a {}-wrapped block within a stylesheet.
- *       '<' characters in the SafeStyle string *must be CSS-escaped* before
- *       interpolation. The SafeStyle string is also guaranteed not to be able
- *       to introduce new properties or elide existing ones.
- *   <li>Interpolated as the content of a {}-wrapped block within an HTML
- *       <style> element. '<' characters in the SafeStyle string
- *       *must be CSS-escaped* before interpolation.
- *   <li>Assigned to the style property of a DOM node. The SafeStyle string
- *       should not be escaped before being assigned to the property.
- * </ul>
- *
- * A SafeStyle may never contain literal angle brackets. Otherwise, it could
- * be unsafe to place a SafeStyle into a &lt;style&gt; tag (where it can't
- * be HTML escaped). For example, if the SafeStyle containing
- * "{@code font: 'foo &lt;style/&gt;&lt;script&gt;evil&lt;/script&gt;'}" were
- * interpolated within a &lt;style&gt; tag, this would then break out of the
- * style context into HTML.
- *
- * A SafeStyle may contain literal single or double quotes, and as such the
- * entire style string must be escaped when used in a style attribute (if
- * this were not the case, the string could contain a matching quote that
- * would escape from the style attribute).
- *
- * Values of this type must be composable, i.e. for any two values
- * {@code style1} and {@code style2} of this type,
- * {@code goog.html.SafeStyle.unwrap(style1) +
- * goog.html.SafeStyle.unwrap(style2)} must itself be a value that satisfies
- * the SafeStyle type constraint. This requirement implies that for any value
- * {@code style} of this type, {@code goog.html.SafeStyle.unwrap(style)} must
- * not end in a "property value" or "property name" context. For example,
- * a value of {@code background:url("} or {@code font-} would not satisfy the
- * SafeStyle contract. This is because concatenating such strings with a
- * second value that itself does not contain unsafe CSS can result in an
- * overall string that does. For example, if {@code javascript:evil())"} is
- * appended to {@code background:url("}, the resulting string may result in
- * the execution of a malicious script.
- *
- * TODO(mlourenco): Consider whether we should implement UTF-8 interchange
- * validity checks and blacklisting of newlines (including Unicode ones) and
- * other whitespace characters (\t, \f). Document here if so and also update
- * SafeStyle.fromConstant().
- *
- * The following example values comply with this type's contract:
- * <ul>
- *   <li><pre>width: 1em;</pre>
- *   <li><pre>height:1em;</pre>
- *   <li><pre>width: 1em;height: 1em;</pre>
- *   <li><pre>background:url('http://url');</pre>
- * </ul>
- * In addition, the empty string is safe for use in a CSS attribute.
- *
- * The following example values do NOT comply with this type's contract:
- * <ul>
- *   <li><pre>background: red</pre> (missing a trailing semi-colon)
- *   <li><pre>background:</pre> (missing a value and a trailing semi-colon)
- *   <li><pre>1em</pre> (missing an attribute name, which provides context for
- *       the value)
- * </ul>
- *
- * @see goog.html.SafeStyle#create
- * @see goog.html.SafeStyle#fromConstant
- * @see http://www.w3.org/TR/css3-syntax/
- * @constructor
- * @final
- * @struct
- * @implements {goog.string.TypedString}
- */
-goog.html.SafeStyle = function() {
-  /**
-   * The contained value of this SafeStyle.  The field has a purposely
-   * ugly name to make (non-compiled) code that attempts to directly access this
-   * field stand out.
-   * @private {string}
-   */
-  this.privateDoNotAccessOrElseSafeStyleWrappedValue_ = '';
-
-  /**
-   * A type marker used to implement additional run-time type checking.
-   * @see goog.html.SafeStyle#unwrap
-   * @const {!Object}
-   * @private
-   */
-  this.SAFE_STYLE_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
-      goog.html.SafeStyle.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
-};
-
-
-/**
- * @override
- * @const
- */
-goog.html.SafeStyle.prototype.implementsGoogStringTypedString = true;
-
-
-/**
- * Type marker for the SafeStyle type, used to implement additional
- * run-time type checking.
- * @const {!Object}
- * @private
- */
-goog.html.SafeStyle.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
-
-
-/**
- * Creates a SafeStyle object from a compile-time constant string.
- *
- * {@code style} should be in the format
- * {@code name: value; [name: value; ...]} and must not have any < or >
- * characters in it. This is so that SafeStyle's contract is preserved,
- * allowing the SafeStyle to correctly be interpreted as a sequence of CSS
- * declarations and without affecting the syntactic structure of any
- * surrounding CSS and HTML.
- *
- * This method performs basic sanity checks on the format of {@code style}
- * but does not constrain the format of {@code name} and {@code value}, except
- * for disallowing tag characters.
- *
- * @param {!goog.string.Const} style A compile-time-constant string from which
- *     to create a SafeStyle.
- * @return {!goog.html.SafeStyle} A SafeStyle object initialized to
- *     {@code style}.
- */
-goog.html.SafeStyle.fromConstant = function(style) {
-  var styleString = goog.string.Const.unwrap(style);
-  if (styleString.length === 0) {
-    return goog.html.SafeStyle.EMPTY;
-  }
-  goog.html.SafeStyle.checkStyle_(styleString);
-  goog.asserts.assert(
-      goog.string.endsWith(styleString, ';'),
-      'Last character of style string is not \';\': ' + styleString);
-  goog.asserts.assert(
-      goog.string.contains(styleString, ':'),
-      'Style string must contain at least one \':\', to ' +
-          'specify a "name: value" pair: ' + styleString);
-  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
-      styleString);
-};
-
-
-/**
- * Checks if the style definition is valid.
- * @param {string} style
- * @private
- */
-goog.html.SafeStyle.checkStyle_ = function(style) {
-  goog.asserts.assert(
-      !/[<>]/.test(style), 'Forbidden characters in style string: ' + style);
-};
-
-
-/**
- * Returns this SafeStyle's value as a string.
- *
- * IMPORTANT: In code where it is security relevant that an object's type is
- * indeed {@code SafeStyle}, use {@code goog.html.SafeStyle.unwrap} instead of
- * this method. If in doubt, assume that it's security relevant. In particular,
- * note that goog.html functions which return a goog.html type do not guarantee
- * the returned instance is of the right type. For example:
- *
- * <pre>
- * var fakeSafeHtml = new String('fake');
- * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
- * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
- * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
- * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml
- * // instanceof goog.html.SafeHtml.
- * </pre>
- *
- * @see goog.html.SafeStyle#unwrap
- * @override
- */
-goog.html.SafeStyle.prototype.getTypedStringValue = function() {
-  return this.privateDoNotAccessOrElseSafeStyleWrappedValue_;
-};
-
-
-if (goog.DEBUG) {
-  /**
-   * Returns a debug string-representation of this value.
-   *
-   * To obtain the actual string value wrapped in a SafeStyle, use
-   * {@code goog.html.SafeStyle.unwrap}.
-   *
-   * @see goog.html.SafeStyle#unwrap
-   * @override
-   */
-  goog.html.SafeStyle.prototype.toString = function() {
-    return 'SafeStyle{' + this.privateDoNotAccessOrElseSafeStyleWrappedValue_ +
-        '}';
-  };
-}
-
-
-/**
- * Performs a runtime check that the provided object is indeed a
- * SafeStyle object, and returns its value.
- *
- * @param {!goog.html.SafeStyle} safeStyle The object to extract from.
- * @return {string} The safeStyle object's contained string, unless
- *     the run-time type check fails. In that case, {@code unwrap} returns an
- *     innocuous string, or, if assertions are enabled, throws
- *     {@code goog.asserts.AssertionError}.
- */
-goog.html.SafeStyle.unwrap = function(safeStyle) {
-  // Perform additional Run-time type-checking to ensure that
-  // safeStyle is indeed an instance of the expected type.  This
-  // provides some additional protection against security bugs due to
-  // application code that disables type checks.
-  // Specifically, the following checks are performed:
-  // 1. The object is an instance of the expected type.
-  // 2. The object is not an instance of a subclass.
-  // 3. The object carries a type marker for the expected type. "Faking" an
-  // object requires a reference to the type marker, which has names intended
-  // to stand out in code reviews.
-  if (safeStyle instanceof goog.html.SafeStyle &&
-      safeStyle.constructor === goog.html.SafeStyle &&
-      safeStyle.SAFE_STYLE_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
-          goog.html.SafeStyle.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
-    return safeStyle.privateDoNotAccessOrElseSafeStyleWrappedValue_;
-  } else {
-    goog.asserts.fail('expected object of type SafeStyle, got \'' +
-        safeStyle + '\' of type ' + goog.typeOf(safeStyle));
-    return 'type_error:SafeStyle';
-  }
-};
-
-
-/**
- * Package-internal utility method to create SafeStyle instances.
- *
- * @param {string} style The string to initialize the SafeStyle object with.
- * @return {!goog.html.SafeStyle} The initialized SafeStyle object.
- * @package
- */
-goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse = function(
-    style) {
-  return new goog.html.SafeStyle().initSecurityPrivateDoNotAccessOrElse_(style);
-};
-
-
-/**
- * Called from createSafeStyleSecurityPrivateDoNotAccessOrElse(). This
- * method exists only so that the compiler can dead code eliminate static
- * fields (like EMPTY) when they're not accessed.
- * @param {string} style
- * @return {!goog.html.SafeStyle}
- * @private
- */
-goog.html.SafeStyle.prototype.initSecurityPrivateDoNotAccessOrElse_ = function(
-    style) {
-  this.privateDoNotAccessOrElseSafeStyleWrappedValue_ = style;
-  return this;
-};
-
-
-/**
- * A SafeStyle instance corresponding to the empty string.
- * @const {!goog.html.SafeStyle}
- */
-goog.html.SafeStyle.EMPTY =
-    goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse('');
-
-
-/**
- * The innocuous string generated by goog.html.SafeStyle.create when passed
- * an unsafe value.
- * @const {string}
- */
-goog.html.SafeStyle.INNOCUOUS_STRING = 'zClosurez';
-
-
-/**
- * A single property value.
- * @typedef {string|!goog.string.Const|!goog.html.SafeUrl}
- */
-goog.html.SafeStyle.PropertyValue;
-
-
-/**
- * Mapping of property names to their values.
- * We don't support numbers even though some values might be numbers (e.g.
- * line-height or 0 for any length). The reason is that most numeric values need
- * units (e.g. '1px') and allowing numbers could cause users forgetting about
- * them.
- * @typedef {!Object<string, ?goog.html.SafeStyle.PropertyValue|
- *     ?Array<!goog.html.SafeStyle.PropertyValue>>}
- */
-goog.html.SafeStyle.PropertyMap;
-
-
-/**
- * Creates a new SafeStyle object from the properties specified in the map.
- * @param {goog.html.SafeStyle.PropertyMap} map Mapping of property names to
- *     their values, for example {'margin': '1px'}. Names must consist of
- *     [-_a-zA-Z0-9]. Values might be strings consisting of
- *     [-,.'"%_!# a-zA-Z0-9], where " and ' must be properly balanced. We also
- *     allow simple functions like rgb() and url() which sanitizes its contents.
- *     Other values must be wrapped in goog.string.Const. URLs might be passed
- *     as goog.html.SafeUrl which will be wrapped into url(""). We also support
- *     array whose elements are joined with ' '. Null value causes skipping the
- *     property.
- * @return {!goog.html.SafeStyle}
- * @throws {Error} If invalid name is provided.
- * @throws {goog.asserts.AssertionError} If invalid value is provided. With
- *     disabled assertions, invalid value is replaced by
- *     goog.html.SafeStyle.INNOCUOUS_STRING.
- */
-goog.html.SafeStyle.create = function(map) {
-  var style = '';
-  for (var name in map) {
-    if (!/^[-_a-zA-Z0-9]+$/.test(name)) {
-      throw Error('Name allows only [-_a-zA-Z0-9], got: ' + name);
-    }
-    var value = map[name];
-    if (value == null) {
-      continue;
-    }
-    if (goog.isArray(value)) {
-      value = goog.array.map(value, goog.html.SafeStyle.sanitizePropertyValue_)
-                  .join(' ');
-    } else {
-      value = goog.html.SafeStyle.sanitizePropertyValue_(value);
-    }
-    style += name + ':' + value + ';';
-  }
-  if (!style) {
-    return goog.html.SafeStyle.EMPTY;
-  }
-  goog.html.SafeStyle.checkStyle_(style);
-  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
-      style);
-};
-
-
-/**
- * Checks and converts value to string.
- * @param {!goog.html.SafeStyle.PropertyValue} value
- * @return {string}
- * @private
- */
-goog.html.SafeStyle.sanitizePropertyValue_ = function(value) {
-  if (value instanceof goog.html.SafeUrl) {
-    var url = goog.html.SafeUrl.unwrap(value);
-    return 'url("' + url.replace(/</g, '%3c').replace(/[\\"]/g, '\\$&') + '")';
-  }
-  var result = value instanceof goog.string.Const ?
-      goog.string.Const.unwrap(value) :
-      goog.html.SafeStyle.sanitizePropertyValueString_(String(value));
-  // These characters can be used to change context and we don't want that even
-  // with const values.
-  goog.asserts.assert(!/[{;}]/.test(result), 'Value does not allow [{;}].');
-  return result;
-};
-
-
-/**
- * Checks string value.
- * @param {string} value
- * @return {string}
- * @private
- */
-goog.html.SafeStyle.sanitizePropertyValueString_ = function(value) {
-  var valueWithoutFunctions =
-      value.replace(goog.html.SafeUrl.FUNCTIONS_RE_, '$1')
-          .replace(goog.html.SafeUrl.URL_RE_, 'url');
-  if (!goog.html.SafeStyle.VALUE_RE_.test(valueWithoutFunctions)) {
-    goog.asserts.fail(
-        'String value allows only ' + goog.html.SafeStyle.VALUE_ALLOWED_CHARS_ +
-        ' and simple functions, got: ' + value);
-    return goog.html.SafeStyle.INNOCUOUS_STRING;
-  } else if (!goog.html.SafeStyle.hasBalancedQuotes_(value)) {
-    goog.asserts.fail('String value requires balanced quotes, got: ' + value);
-    return goog.html.SafeStyle.INNOCUOUS_STRING;
-  }
-  return goog.html.SafeStyle.sanitizeUrl_(value);
-};
-
-
-/**
- * Checks that quotes (" and ') are properly balanced inside a string. Assumes
- * that neither escape (\) nor any other character that could result in
- * breaking out of a string parsing context are allowed;
- * see http://www.w3.org/TR/css3-syntax/#string-token-diagram.
- * @param {string} value Untrusted CSS property value.
- * @return {boolean} True if property value is safe with respect to quote
- *     balancedness.
- * @private
- */
-goog.html.SafeStyle.hasBalancedQuotes_ = function(value) {
-  var outsideSingle = true;
-  var outsideDouble = true;
-  for (var i = 0; i < value.length; i++) {
-    var c = value.charAt(i);
-    if (c == "'" && outsideDouble) {
-      outsideSingle = !outsideSingle;
-    } else if (c == '"' && outsideSingle) {
-      outsideDouble = !outsideDouble;
-    }
-  }
-  return outsideSingle && outsideDouble;
-};
-
-
-/**
- * Characters allowed in goog.html.SafeStyle.VALUE_RE_.
- * @private {string}
- */
-goog.html.SafeStyle.VALUE_ALLOWED_CHARS_ = '[-,."\'%_!# a-zA-Z0-9]';
-
-
-/**
- * Regular expression for safe values.
- *
- * Quotes (" and ') are allowed, but a check must be done elsewhere to ensure
- * they're balanced.
- *
- * ',' allows multiple values to be assigned to the same property
- * (e.g. background-attachment or font-family) and hence could allow
- * multiple values to get injected, but that should pose no risk of XSS.
- *
- * The expression checks only for XSS safety, not for CSS validity.
- * @const {!RegExp}
- * @private
- */
-goog.html.SafeStyle.VALUE_RE_ =
-    new RegExp('^' + goog.html.SafeStyle.VALUE_ALLOWED_CHARS_ + '+$');
-
-
-/**
- * Regular expression for url(). We support URLs allowed by
- * https://www.w3.org/TR/css-syntax-3/#url-token-diagram without using escape
- * sequences. Use percent-encoding if you need to use special characters like
- * backslash.
- * @private @const {!RegExp}
- */
-goog.html.SafeUrl.URL_RE_ = new RegExp(
-    '\\b(url\\([ \t\n]*)(' +
-        '\'[ -&(-\\[\\]-~]*\'' +  // Printable characters except ' and \.
-        '|"[ !#-\\[\\]-~]*"' +    // Printable characters except " and \.
-        '|[!#-&*-\\[\\]-~]*' +    // Printable characters except [ "'()\\].
-        ')([ \t\n]*\\))',
-    'g');
-
-
-/**
- * Regular expression for simple functions.
- * @private @const {!RegExp}
- */
-goog.html.SafeUrl.FUNCTIONS_RE_ = new RegExp(
-    '\\b(hsl|hsla|rgb|rgba|(rotate|scale|translate)(X|Y|Z|3d)?)' +
-        '\\([-0-9a-z.%, ]+\\)',
-    'g');
-
-
-/**
- * Sanitize URLs inside url().
- *
- * NOTE: We could also consider using CSS.escape once that's available in the
- * browsers. However, loosely matching URL e.g. with url\(.*\) and then escaping
- * the contents would result in a slightly different language than CSS leading
- * to confusion of users. E.g. url(")") is valid in CSS but it would be invalid
- * as seen by our parser. On the other hand, url(\) is invalid in CSS but our
- * parser would be fine with it.
- *
- * @param {string} value Untrusted CSS property value.
- * @return {string}
- * @private
- */
-goog.html.SafeStyle.sanitizeUrl_ = function(value) {
-  return value.replace(
-      goog.html.SafeUrl.URL_RE_, function(match, before, url, after) {
-        var quote = '';
-        url = url.replace(/^(['"])(.*)\1$/, function(match, start, inside) {
-          quote = start;
-          return inside;
-        });
-        var sanitized = goog.html.SafeUrl.sanitize(url).getTypedStringValue();
-        return before + quote + sanitized + quote + after;
-      });
-};
-
-
-/**
- * Creates a new SafeStyle object by concatenating the values.
- * @param {...(!goog.html.SafeStyle|!Array<!goog.html.SafeStyle>)} var_args
- *     SafeStyles to concatenate.
- * @return {!goog.html.SafeStyle}
- */
-goog.html.SafeStyle.concat = function(var_args) {
-  var style = '';
-
-  /**
-   * @param {!goog.html.SafeStyle|!Array<!goog.html.SafeStyle>} argument
-   */
-  var addArgument = function(argument) {
-    if (goog.isArray(argument)) {
-      goog.array.forEach(argument, addArgument);
-    } else {
-      style += goog.html.SafeStyle.unwrap(argument);
-    }
-  };
-
-  goog.array.forEach(arguments, addArgument);
-  if (!style) {
-    return goog.html.SafeStyle.EMPTY;
-  }
-  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
-      style);
-};
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