/g, \">\").replace(/\"/g, \""\").replace(/'/g, \"'\");\n};\n\nvar getTitleFromPropsList = function getTitleFromPropsList(propsList) {\n var innermostTitle = getInnermostProperty(propsList, TAG_NAMES.TITLE);\n var innermostTemplate = getInnermostProperty(propsList, HELMET_PROPS.TITLE_TEMPLATE);\n\n if (innermostTemplate && innermostTitle) {\n // use function arg to avoid need to escape $ characters\n return innermostTemplate.replace(/%s/g, function () {\n return Array.isArray(innermostTitle) ? innermostTitle.join(\"\") : innermostTitle;\n });\n }\n\n var innermostDefaultTitle = getInnermostProperty(propsList, HELMET_PROPS.DEFAULT_TITLE);\n\n return innermostTitle || innermostDefaultTitle || undefined;\n};\n\nvar getOnChangeClientState = function getOnChangeClientState(propsList) {\n return getInnermostProperty(propsList, HELMET_PROPS.ON_CHANGE_CLIENT_STATE) || function () {};\n};\n\nvar getAttributesFromPropsList = function getAttributesFromPropsList(tagType, propsList) {\n return propsList.filter(function (props) {\n return typeof props[tagType] !== \"undefined\";\n }).map(function (props) {\n return props[tagType];\n }).reduce(function (tagAttrs, current) {\n return _extends({}, tagAttrs, current);\n }, {});\n};\n\nvar getBaseTagFromPropsList = function getBaseTagFromPropsList(primaryAttributes, propsList) {\n return propsList.filter(function (props) {\n return typeof props[TAG_NAMES.BASE] !== \"undefined\";\n }).map(function (props) {\n return props[TAG_NAMES.BASE];\n }).reverse().reduce(function (innermostBaseTag, tag) {\n if (!innermostBaseTag.length) {\n var keys = Object.keys(tag);\n\n for (var i = 0; i < keys.length; i++) {\n var attributeKey = keys[i];\n var lowerCaseAttributeKey = attributeKey.toLowerCase();\n\n if (primaryAttributes.indexOf(lowerCaseAttributeKey) !== -1 && tag[lowerCaseAttributeKey]) {\n return innermostBaseTag.concat(tag);\n }\n }\n }\n\n return innermostBaseTag;\n }, []);\n};\n\nvar getTagsFromPropsList = function getTagsFromPropsList(tagName, primaryAttributes, propsList) {\n // Calculate list of tags, giving priority innermost component (end of the propslist)\n var approvedSeenTags = {};\n\n return propsList.filter(function (props) {\n if (Array.isArray(props[tagName])) {\n return true;\n }\n if (typeof props[tagName] !== \"undefined\") {\n warn(\"Helmet: \" + tagName + \" should be of type \\\"Array\\\". Instead found type \\\"\" + _typeof(props[tagName]) + \"\\\"\");\n }\n return false;\n }).map(function (props) {\n return props[tagName];\n }).reverse().reduce(function (approvedTags, instanceTags) {\n var instanceSeenTags = {};\n\n instanceTags.filter(function (tag) {\n var primaryAttributeKey = void 0;\n var keys = Object.keys(tag);\n for (var i = 0; i < keys.length; i++) {\n var attributeKey = keys[i];\n var lowerCaseAttributeKey = attributeKey.toLowerCase();\n\n // Special rule with link tags, since rel and href are both primary tags, rel takes priority\n if (primaryAttributes.indexOf(lowerCaseAttributeKey) !== -1 && !(primaryAttributeKey === TAG_PROPERTIES.REL && tag[primaryAttributeKey].toLowerCase() === \"canonical\") && !(lowerCaseAttributeKey === TAG_PROPERTIES.REL && tag[lowerCaseAttributeKey].toLowerCase() === \"stylesheet\")) {\n primaryAttributeKey = lowerCaseAttributeKey;\n }\n // Special case for innerHTML which doesn't work lowercased\n if (primaryAttributes.indexOf(attributeKey) !== -1 && (attributeKey === TAG_PROPERTIES.INNER_HTML || attributeKey === TAG_PROPERTIES.CSS_TEXT || attributeKey === TAG_PROPERTIES.ITEM_PROP)) {\n primaryAttributeKey = attributeKey;\n }\n }\n\n if (!primaryAttributeKey || !tag[primaryAttributeKey]) {\n return false;\n }\n\n var value = tag[primaryAttributeKey].toLowerCase();\n\n if (!approvedSeenTags[primaryAttributeKey]) {\n approvedSeenTags[primaryAttributeKey] = {};\n }\n\n if (!instanceSeenTags[primaryAttributeKey]) {\n instanceSeenTags[primaryAttributeKey] = {};\n }\n\n if (!approvedSeenTags[primaryAttributeKey][value]) {\n instanceSeenTags[primaryAttributeKey][value] = true;\n return true;\n }\n\n return false;\n }).reverse().forEach(function (tag) {\n return approvedTags.push(tag);\n });\n\n // Update seen tags with tags from this instance\n var keys = Object.keys(instanceSeenTags);\n for (var i = 0; i < keys.length; i++) {\n var attributeKey = keys[i];\n var tagUnion = objectAssign({}, approvedSeenTags[attributeKey], instanceSeenTags[attributeKey]);\n\n approvedSeenTags[attributeKey] = tagUnion;\n }\n\n return approvedTags;\n }, []).reverse();\n};\n\nvar getInnermostProperty = function getInnermostProperty(propsList, property) {\n for (var i = propsList.length - 1; i >= 0; i--) {\n var props = propsList[i];\n\n if (props.hasOwnProperty(property)) {\n return props[property];\n }\n }\n\n return null;\n};\n\nvar reducePropsToState = function reducePropsToState(propsList) {\n return {\n baseTag: getBaseTagFromPropsList([TAG_PROPERTIES.HREF, TAG_PROPERTIES.TARGET], propsList),\n bodyAttributes: getAttributesFromPropsList(ATTRIBUTE_NAMES.BODY, propsList),\n defer: getInnermostProperty(propsList, HELMET_PROPS.DEFER),\n encode: getInnermostProperty(propsList, HELMET_PROPS.ENCODE_SPECIAL_CHARACTERS),\n htmlAttributes: getAttributesFromPropsList(ATTRIBUTE_NAMES.HTML, propsList),\n linkTags: getTagsFromPropsList(TAG_NAMES.LINK, [TAG_PROPERTIES.REL, TAG_PROPERTIES.HREF], propsList),\n metaTags: getTagsFromPropsList(TAG_NAMES.META, [TAG_PROPERTIES.NAME, TAG_PROPERTIES.CHARSET, TAG_PROPERTIES.HTTPEQUIV, TAG_PROPERTIES.PROPERTY, TAG_PROPERTIES.ITEM_PROP], propsList),\n noscriptTags: getTagsFromPropsList(TAG_NAMES.NOSCRIPT, [TAG_PROPERTIES.INNER_HTML], propsList),\n onChangeClientState: getOnChangeClientState(propsList),\n scriptTags: getTagsFromPropsList(TAG_NAMES.SCRIPT, [TAG_PROPERTIES.SRC, TAG_PROPERTIES.INNER_HTML], propsList),\n styleTags: getTagsFromPropsList(TAG_NAMES.STYLE, [TAG_PROPERTIES.CSS_TEXT], propsList),\n title: getTitleFromPropsList(propsList),\n titleAttributes: getAttributesFromPropsList(ATTRIBUTE_NAMES.TITLE, propsList)\n };\n};\n\nvar rafPolyfill = function () {\n var clock = Date.now();\n\n return function (callback) {\n var currentTime = Date.now();\n\n if (currentTime - clock > 16) {\n clock = currentTime;\n callback(currentTime);\n } else {\n setTimeout(function () {\n rafPolyfill(callback);\n }, 0);\n }\n };\n}();\n\nvar cafPolyfill = function cafPolyfill(id) {\n return clearTimeout(id);\n};\n\nvar requestAnimationFrame = typeof window !== \"undefined\" ? window.requestAnimationFrame && window.requestAnimationFrame.bind(window) || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || rafPolyfill : global.requestAnimationFrame || rafPolyfill;\n\nvar cancelAnimationFrame = typeof window !== \"undefined\" ? window.cancelAnimationFrame || window.webkitCancelAnimationFrame || window.mozCancelAnimationFrame || cafPolyfill : global.cancelAnimationFrame || cafPolyfill;\n\nvar warn = function warn(msg) {\n return console && typeof console.warn === \"function\" && console.warn(msg);\n};\n\nvar _helmetCallback = null;\n\nvar handleClientStateChange = function handleClientStateChange(newState) {\n if (_helmetCallback) {\n cancelAnimationFrame(_helmetCallback);\n }\n\n if (newState.defer) {\n _helmetCallback = requestAnimationFrame(function () {\n commitTagChanges(newState, function () {\n _helmetCallback = null;\n });\n });\n } else {\n commitTagChanges(newState);\n _helmetCallback = null;\n }\n};\n\nvar commitTagChanges = function commitTagChanges(newState, cb) {\n var baseTag = newState.baseTag,\n bodyAttributes = newState.bodyAttributes,\n htmlAttributes = newState.htmlAttributes,\n linkTags = newState.linkTags,\n metaTags = newState.metaTags,\n noscriptTags = newState.noscriptTags,\n onChangeClientState = newState.onChangeClientState,\n scriptTags = newState.scriptTags,\n styleTags = newState.styleTags,\n title = newState.title,\n titleAttributes = newState.titleAttributes;\n\n updateAttributes(TAG_NAMES.BODY, bodyAttributes);\n updateAttributes(TAG_NAMES.HTML, htmlAttributes);\n\n updateTitle(title, titleAttributes);\n\n var tagUpdates = {\n baseTag: updateTags(TAG_NAMES.BASE, baseTag),\n linkTags: updateTags(TAG_NAMES.LINK, linkTags),\n metaTags: updateTags(TAG_NAMES.META, metaTags),\n noscriptTags: updateTags(TAG_NAMES.NOSCRIPT, noscriptTags),\n scriptTags: updateTags(TAG_NAMES.SCRIPT, scriptTags),\n styleTags: updateTags(TAG_NAMES.STYLE, styleTags)\n };\n\n var addedTags = {};\n var removedTags = {};\n\n Object.keys(tagUpdates).forEach(function (tagType) {\n var _tagUpdates$tagType = tagUpdates[tagType],\n newTags = _tagUpdates$tagType.newTags,\n oldTags = _tagUpdates$tagType.oldTags;\n\n\n if (newTags.length) {\n addedTags[tagType] = newTags;\n }\n if (oldTags.length) {\n removedTags[tagType] = tagUpdates[tagType].oldTags;\n }\n });\n\n cb && cb();\n\n onChangeClientState(newState, addedTags, removedTags);\n};\n\nvar flattenArray = function flattenArray(possibleArray) {\n return Array.isArray(possibleArray) ? possibleArray.join(\"\") : possibleArray;\n};\n\nvar updateTitle = function updateTitle(title, attributes) {\n if (typeof title !== \"undefined\" && document.title !== title) {\n document.title = flattenArray(title);\n }\n\n updateAttributes(TAG_NAMES.TITLE, attributes);\n};\n\nvar updateAttributes = function updateAttributes(tagName, attributes) {\n var elementTag = document.getElementsByTagName(tagName)[0];\n\n if (!elementTag) {\n return;\n }\n\n var helmetAttributeString = elementTag.getAttribute(HELMET_ATTRIBUTE);\n var helmetAttributes = helmetAttributeString ? helmetAttributeString.split(\",\") : [];\n var attributesToRemove = [].concat(helmetAttributes);\n var attributeKeys = Object.keys(attributes);\n\n for (var i = 0; i < attributeKeys.length; i++) {\n var attribute = attributeKeys[i];\n var value = attributes[attribute] || \"\";\n\n if (elementTag.getAttribute(attribute) !== value) {\n elementTag.setAttribute(attribute, value);\n }\n\n if (helmetAttributes.indexOf(attribute) === -1) {\n helmetAttributes.push(attribute);\n }\n\n var indexToSave = attributesToRemove.indexOf(attribute);\n if (indexToSave !== -1) {\n attributesToRemove.splice(indexToSave, 1);\n }\n }\n\n for (var _i = attributesToRemove.length - 1; _i >= 0; _i--) {\n elementTag.removeAttribute(attributesToRemove[_i]);\n }\n\n if (helmetAttributes.length === attributesToRemove.length) {\n elementTag.removeAttribute(HELMET_ATTRIBUTE);\n } else if (elementTag.getAttribute(HELMET_ATTRIBUTE) !== attributeKeys.join(\",\")) {\n elementTag.setAttribute(HELMET_ATTRIBUTE, attributeKeys.join(\",\"));\n }\n};\n\nvar updateTags = function updateTags(type, tags) {\n var headElement = document.head || document.querySelector(TAG_NAMES.HEAD);\n var tagNodes = headElement.querySelectorAll(type + \"[\" + HELMET_ATTRIBUTE + \"]\");\n var oldTags = Array.prototype.slice.call(tagNodes);\n var newTags = [];\n var indexToDelete = void 0;\n\n if (tags && tags.length) {\n tags.forEach(function (tag) {\n var newElement = document.createElement(type);\n\n for (var attribute in tag) {\n if (tag.hasOwnProperty(attribute)) {\n if (attribute === TAG_PROPERTIES.INNER_HTML) {\n newElement.innerHTML = tag.innerHTML;\n } else if (attribute === TAG_PROPERTIES.CSS_TEXT) {\n if (newElement.styleSheet) {\n newElement.styleSheet.cssText = tag.cssText;\n } else {\n newElement.appendChild(document.createTextNode(tag.cssText));\n }\n } else {\n var value = typeof tag[attribute] === \"undefined\" ? \"\" : tag[attribute];\n newElement.setAttribute(attribute, value);\n }\n }\n }\n\n newElement.setAttribute(HELMET_ATTRIBUTE, \"true\");\n\n // Remove a duplicate tag from domTagstoRemove, so it isn't cleared.\n if (oldTags.some(function (existingTag, index) {\n indexToDelete = index;\n return newElement.isEqualNode(existingTag);\n })) {\n oldTags.splice(indexToDelete, 1);\n } else {\n newTags.push(newElement);\n }\n });\n }\n\n oldTags.forEach(function (tag) {\n return tag.parentNode.removeChild(tag);\n });\n newTags.forEach(function (tag) {\n return headElement.appendChild(tag);\n });\n\n return {\n oldTags: oldTags,\n newTags: newTags\n };\n};\n\nvar generateElementAttributesAsString = function generateElementAttributesAsString(attributes) {\n return Object.keys(attributes).reduce(function (str, key) {\n var attr = typeof attributes[key] !== \"undefined\" ? key + \"=\\\"\" + attributes[key] + \"\\\"\" : \"\" + key;\n return str ? str + \" \" + attr : attr;\n }, \"\");\n};\n\nvar generateTitleAsString = function generateTitleAsString(type, title, attributes, encode) {\n var attributeString = generateElementAttributesAsString(attributes);\n var flattenedTitle = flattenArray(title);\n return attributeString ? \"<\" + type + \" \" + HELMET_ATTRIBUTE + \"=\\\"true\\\" \" + attributeString + \">\" + encodeSpecialCharacters(flattenedTitle, encode) + \"\" + type + \">\" : \"<\" + type + \" \" + HELMET_ATTRIBUTE + \"=\\\"true\\\">\" + encodeSpecialCharacters(flattenedTitle, encode) + \"\" + type + \">\";\n};\n\nvar generateTagsAsString = function generateTagsAsString(type, tags, encode) {\n return tags.reduce(function (str, tag) {\n var attributeHtml = Object.keys(tag).filter(function (attribute) {\n return !(attribute === TAG_PROPERTIES.INNER_HTML || attribute === TAG_PROPERTIES.CSS_TEXT);\n }).reduce(function (string, attribute) {\n var attr = typeof tag[attribute] === \"undefined\" ? attribute : attribute + \"=\\\"\" + encodeSpecialCharacters(tag[attribute], encode) + \"\\\"\";\n return string ? string + \" \" + attr : attr;\n }, \"\");\n\n var tagContent = tag.innerHTML || tag.cssText || \"\";\n\n var isSelfClosing = SELF_CLOSING_TAGS.indexOf(type) === -1;\n\n return str + \"<\" + type + \" \" + HELMET_ATTRIBUTE + \"=\\\"true\\\" \" + attributeHtml + (isSelfClosing ? \"/>\" : \">\" + tagContent + \"\" + type + \">\");\n }, \"\");\n};\n\nvar convertElementAttributestoReactProps = function convertElementAttributestoReactProps(attributes) {\n var initProps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return Object.keys(attributes).reduce(function (obj, key) {\n obj[REACT_TAG_MAP[key] || key] = attributes[key];\n return obj;\n }, initProps);\n};\n\nvar convertReactPropstoHtmlAttributes = function convertReactPropstoHtmlAttributes(props) {\n var initAttributes = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return Object.keys(props).reduce(function (obj, key) {\n obj[HTML_TAG_MAP[key] || key] = props[key];\n return obj;\n }, initAttributes);\n};\n\nvar generateTitleAsReactComponent = function generateTitleAsReactComponent(type, title, attributes) {\n var _initProps;\n\n // assigning into an array to define toString function on it\n var initProps = (_initProps = {\n key: title\n }, _initProps[HELMET_ATTRIBUTE] = true, _initProps);\n var props = convertElementAttributestoReactProps(attributes, initProps);\n\n return [React.createElement(TAG_NAMES.TITLE, props, title)];\n};\n\nvar generateTagsAsReactComponent = function generateTagsAsReactComponent(type, tags) {\n return tags.map(function (tag, i) {\n var _mappedTag;\n\n var mappedTag = (_mappedTag = {\n key: i\n }, _mappedTag[HELMET_ATTRIBUTE] = true, _mappedTag);\n\n Object.keys(tag).forEach(function (attribute) {\n var mappedAttribute = REACT_TAG_MAP[attribute] || attribute;\n\n if (mappedAttribute === TAG_PROPERTIES.INNER_HTML || mappedAttribute === TAG_PROPERTIES.CSS_TEXT) {\n var content = tag.innerHTML || tag.cssText;\n mappedTag.dangerouslySetInnerHTML = { __html: content };\n } else {\n mappedTag[mappedAttribute] = tag[attribute];\n }\n });\n\n return React.createElement(type, mappedTag);\n });\n};\n\nvar getMethodsForTag = function getMethodsForTag(type, tags, encode) {\n switch (type) {\n case TAG_NAMES.TITLE:\n return {\n toComponent: function toComponent() {\n return generateTitleAsReactComponent(type, tags.title, tags.titleAttributes, encode);\n },\n toString: function toString() {\n return generateTitleAsString(type, tags.title, tags.titleAttributes, encode);\n }\n };\n case ATTRIBUTE_NAMES.BODY:\n case ATTRIBUTE_NAMES.HTML:\n return {\n toComponent: function toComponent() {\n return convertElementAttributestoReactProps(tags);\n },\n toString: function toString() {\n return generateElementAttributesAsString(tags);\n }\n };\n default:\n return {\n toComponent: function toComponent() {\n return generateTagsAsReactComponent(type, tags);\n },\n toString: function toString() {\n return generateTagsAsString(type, tags, encode);\n }\n };\n }\n};\n\nvar mapStateOnServer = function mapStateOnServer(_ref) {\n var baseTag = _ref.baseTag,\n bodyAttributes = _ref.bodyAttributes,\n encode = _ref.encode,\n htmlAttributes = _ref.htmlAttributes,\n linkTags = _ref.linkTags,\n metaTags = _ref.metaTags,\n noscriptTags = _ref.noscriptTags,\n scriptTags = _ref.scriptTags,\n styleTags = _ref.styleTags,\n _ref$title = _ref.title,\n title = _ref$title === undefined ? \"\" : _ref$title,\n titleAttributes = _ref.titleAttributes;\n return {\n base: getMethodsForTag(TAG_NAMES.BASE, baseTag, encode),\n bodyAttributes: getMethodsForTag(ATTRIBUTE_NAMES.BODY, bodyAttributes, encode),\n htmlAttributes: getMethodsForTag(ATTRIBUTE_NAMES.HTML, htmlAttributes, encode),\n link: getMethodsForTag(TAG_NAMES.LINK, linkTags, encode),\n meta: getMethodsForTag(TAG_NAMES.META, metaTags, encode),\n noscript: getMethodsForTag(TAG_NAMES.NOSCRIPT, noscriptTags, encode),\n script: getMethodsForTag(TAG_NAMES.SCRIPT, scriptTags, encode),\n style: getMethodsForTag(TAG_NAMES.STYLE, styleTags, encode),\n title: getMethodsForTag(TAG_NAMES.TITLE, { title: title, titleAttributes: titleAttributes }, encode)\n };\n};\n\nvar Helmet = function Helmet(Component) {\n var _class, _temp;\n\n return _temp = _class = function (_React$Component) {\n inherits(HelmetWrapper, _React$Component);\n\n function HelmetWrapper() {\n classCallCheck(this, HelmetWrapper);\n return possibleConstructorReturn(this, _React$Component.apply(this, arguments));\n }\n\n HelmetWrapper.prototype.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {\n return !isEqual(this.props, nextProps);\n };\n\n HelmetWrapper.prototype.mapNestedChildrenToProps = function mapNestedChildrenToProps(child, nestedChildren) {\n if (!nestedChildren) {\n return null;\n }\n\n switch (child.type) {\n case TAG_NAMES.SCRIPT:\n case TAG_NAMES.NOSCRIPT:\n return {\n innerHTML: nestedChildren\n };\n\n case TAG_NAMES.STYLE:\n return {\n cssText: nestedChildren\n };\n }\n\n throw new Error(\"<\" + child.type + \" /> elements are self-closing and can not contain children. Refer to our API for more information.\");\n };\n\n HelmetWrapper.prototype.flattenArrayTypeChildren = function flattenArrayTypeChildren(_ref) {\n var _babelHelpers$extends;\n\n var child = _ref.child,\n arrayTypeChildren = _ref.arrayTypeChildren,\n newChildProps = _ref.newChildProps,\n nestedChildren = _ref.nestedChildren;\n\n return _extends({}, arrayTypeChildren, (_babelHelpers$extends = {}, _babelHelpers$extends[child.type] = [].concat(arrayTypeChildren[child.type] || [], [_extends({}, newChildProps, this.mapNestedChildrenToProps(child, nestedChildren))]), _babelHelpers$extends));\n };\n\n HelmetWrapper.prototype.mapObjectTypeChildren = function mapObjectTypeChildren(_ref2) {\n var _babelHelpers$extends2, _babelHelpers$extends3;\n\n var child = _ref2.child,\n newProps = _ref2.newProps,\n newChildProps = _ref2.newChildProps,\n nestedChildren = _ref2.nestedChildren;\n\n switch (child.type) {\n case TAG_NAMES.TITLE:\n return _extends({}, newProps, (_babelHelpers$extends2 = {}, _babelHelpers$extends2[child.type] = nestedChildren, _babelHelpers$extends2.titleAttributes = _extends({}, newChildProps), _babelHelpers$extends2));\n\n case TAG_NAMES.BODY:\n return _extends({}, newProps, {\n bodyAttributes: _extends({}, newChildProps)\n });\n\n case TAG_NAMES.HTML:\n return _extends({}, newProps, {\n htmlAttributes: _extends({}, newChildProps)\n });\n }\n\n return _extends({}, newProps, (_babelHelpers$extends3 = {}, _babelHelpers$extends3[child.type] = _extends({}, newChildProps), _babelHelpers$extends3));\n };\n\n HelmetWrapper.prototype.mapArrayTypeChildrenToProps = function mapArrayTypeChildrenToProps(arrayTypeChildren, newProps) {\n var newFlattenedProps = _extends({}, newProps);\n\n Object.keys(arrayTypeChildren).forEach(function (arrayChildName) {\n var _babelHelpers$extends4;\n\n newFlattenedProps = _extends({}, newFlattenedProps, (_babelHelpers$extends4 = {}, _babelHelpers$extends4[arrayChildName] = arrayTypeChildren[arrayChildName], _babelHelpers$extends4));\n });\n\n return newFlattenedProps;\n };\n\n HelmetWrapper.prototype.warnOnInvalidChildren = function warnOnInvalidChildren(child, nestedChildren) {\n if (process.env.NODE_ENV !== \"production\") {\n if (!VALID_TAG_NAMES.some(function (name) {\n return child.type === name;\n })) {\n if (typeof child.type === \"function\") {\n return warn(\"You may be attempting to nest components within each other, which is not allowed. Refer to our API for more information.\");\n }\n\n return warn(\"Only elements types \" + VALID_TAG_NAMES.join(\", \") + \" are allowed. Helmet does not support rendering <\" + child.type + \"> elements. Refer to our API for more information.\");\n }\n\n if (nestedChildren && typeof nestedChildren !== \"string\" && (!Array.isArray(nestedChildren) || nestedChildren.some(function (nestedChild) {\n return typeof nestedChild !== \"string\";\n }))) {\n throw new Error(\"Helmet expects a string as a child of <\" + child.type + \">. Did you forget to wrap your children in braces? ( <\" + child.type + \">{``}\" + child.type + \"> ) Refer to our API for more information.\");\n }\n }\n\n return true;\n };\n\n HelmetWrapper.prototype.mapChildrenToProps = function mapChildrenToProps(children, newProps) {\n var _this2 = this;\n\n var arrayTypeChildren = {};\n\n React.Children.forEach(children, function (child) {\n if (!child || !child.props) {\n return;\n }\n\n var _child$props = child.props,\n nestedChildren = _child$props.children,\n childProps = objectWithoutProperties(_child$props, [\"children\"]);\n\n var newChildProps = convertReactPropstoHtmlAttributes(childProps);\n\n _this2.warnOnInvalidChildren(child, nestedChildren);\n\n switch (child.type) {\n case TAG_NAMES.LINK:\n case TAG_NAMES.META:\n case TAG_NAMES.NOSCRIPT:\n case TAG_NAMES.SCRIPT:\n case TAG_NAMES.STYLE:\n arrayTypeChildren = _this2.flattenArrayTypeChildren({\n child: child,\n arrayTypeChildren: arrayTypeChildren,\n newChildProps: newChildProps,\n nestedChildren: nestedChildren\n });\n break;\n\n default:\n newProps = _this2.mapObjectTypeChildren({\n child: child,\n newProps: newProps,\n newChildProps: newChildProps,\n nestedChildren: nestedChildren\n });\n break;\n }\n });\n\n newProps = this.mapArrayTypeChildrenToProps(arrayTypeChildren, newProps);\n return newProps;\n };\n\n HelmetWrapper.prototype.render = function render() {\n var _props = this.props,\n children = _props.children,\n props = objectWithoutProperties(_props, [\"children\"]);\n\n var newProps = _extends({}, props);\n\n if (children) {\n newProps = this.mapChildrenToProps(children, newProps);\n }\n\n return React.createElement(Component, newProps);\n };\n\n createClass(HelmetWrapper, null, [{\n key: \"canUseDOM\",\n\n\n // Component.peek comes from react-side-effect:\n // For testing, you may use a static peek() method available on the returned component.\n // It lets you get the current state without resetting the mounted instance stack.\n // Don’t use it for anything other than testing.\n\n /**\n * @param {Object} base: {\"target\": \"_blank\", \"href\": \"http://mysite.com/\"}\n * @param {Object} bodyAttributes: {\"className\": \"root\"}\n * @param {String} defaultTitle: \"Default Title\"\n * @param {Boolean} defer: true\n * @param {Boolean} encodeSpecialCharacters: true\n * @param {Object} htmlAttributes: {\"lang\": \"en\", \"amp\": undefined}\n * @param {Array} link: [{\"rel\": \"canonical\", \"href\": \"http://mysite.com/example\"}]\n * @param {Array} meta: [{\"name\": \"description\", \"content\": \"Test description\"}]\n * @param {Array} noscript: [{\"innerHTML\": \" console.log(newState)\"\n * @param {Array} script: [{\"type\": \"text/javascript\", \"src\": \"http://mysite.com/js/test.js\"}]\n * @param {Array} style: [{\"type\": \"text/css\", \"cssText\": \"div { display: block; color: blue; }\"}]\n * @param {String} title: \"Title\"\n * @param {Object} titleAttributes: {\"itemprop\": \"name\"}\n * @param {String} titleTemplate: \"MySite.com - %s\"\n */\n set: function set$$1(canUseDOM) {\n Component.canUseDOM = canUseDOM;\n }\n }]);\n return HelmetWrapper;\n }(React.Component), _class.propTypes = {\n base: PropTypes.object,\n bodyAttributes: PropTypes.object,\n children: PropTypes.oneOfType([PropTypes.arrayOf(PropTypes.node), PropTypes.node]),\n defaultTitle: PropTypes.string,\n defer: PropTypes.bool,\n encodeSpecialCharacters: PropTypes.bool,\n htmlAttributes: PropTypes.object,\n link: PropTypes.arrayOf(PropTypes.object),\n meta: PropTypes.arrayOf(PropTypes.object),\n noscript: PropTypes.arrayOf(PropTypes.object),\n onChangeClientState: PropTypes.func,\n script: PropTypes.arrayOf(PropTypes.object),\n style: PropTypes.arrayOf(PropTypes.object),\n title: PropTypes.string,\n titleAttributes: PropTypes.object,\n titleTemplate: PropTypes.string\n }, _class.defaultProps = {\n defer: true,\n encodeSpecialCharacters: true\n }, _class.peek = Component.peek, _class.rewind = function () {\n var mappedState = Component.rewind();\n if (!mappedState) {\n // provide fallback if mappedState is undefined\n mappedState = mapStateOnServer({\n baseTag: [],\n bodyAttributes: {},\n encodeSpecialCharacters: true,\n htmlAttributes: {},\n linkTags: [],\n metaTags: [],\n noscriptTags: [],\n scriptTags: [],\n styleTags: [],\n title: \"\",\n titleAttributes: {}\n });\n }\n\n return mappedState;\n }, _temp;\n};\n\nvar NullComponent = function NullComponent() {\n return null;\n};\n\nvar HelmetSideEffects = withSideEffect(reducePropsToState, handleClientStateChange, mapStateOnServer)(NullComponent);\n\nvar HelmetExport = Helmet(HelmetSideEffects);\nHelmetExport.renderStatic = HelmetExport.rewind;\n\nexport default HelmetExport;\nexport { HelmetExport as Helmet };\n","import setPrototypeOf from \"./setPrototypeOf.js\";\nimport isNativeReflectConstruct from \"./isNativeReflectConstruct.js\";\nexport default function _construct(Parent, args, Class) {\n if (isNativeReflectConstruct()) {\n _construct = Reflect.construct.bind();\n } else {\n _construct = function _construct(Parent, args, Class) {\n var a = [null];\n a.push.apply(a, args);\n var Constructor = Function.bind.apply(Parent, a);\n var instance = new Constructor();\n if (Class) setPrototypeOf(instance, Class.prototype);\n return instance;\n };\n }\n return _construct.apply(null, arguments);\n}","import getPrototypeOf from \"./getPrototypeOf.js\";\nimport setPrototypeOf from \"./setPrototypeOf.js\";\nimport isNativeFunction from \"./isNativeFunction.js\";\nimport construct from \"./construct.js\";\nexport default function _wrapNativeSuper(Class) {\n var _cache = typeof Map === \"function\" ? new Map() : undefined;\n _wrapNativeSuper = function _wrapNativeSuper(Class) {\n if (Class === null || !isNativeFunction(Class)) return Class;\n if (typeof Class !== \"function\") {\n throw new TypeError(\"Super expression must either be null or a function\");\n }\n if (typeof _cache !== \"undefined\") {\n if (_cache.has(Class)) return _cache.get(Class);\n _cache.set(Class, Wrapper);\n }\n function Wrapper() {\n return construct(Class, arguments, getPrototypeOf(this).constructor);\n }\n Wrapper.prototype = Object.create(Class.prototype, {\n constructor: {\n value: Wrapper,\n enumerable: false,\n writable: true,\n configurable: true\n }\n });\n return setPrototypeOf(Wrapper, Class);\n };\n return _wrapNativeSuper(Class);\n}","export default function _isNativeFunction(fn) {\n return Function.toString.call(fn).indexOf(\"[native code]\") !== -1;\n}","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Firebase constants. Some of these (@defines) can be overridden at compile-time.\n */\n\nexport const CONSTANTS = {\n /**\n * @define {boolean} Whether this is the client Node.js SDK.\n */\n NODE_CLIENT: false,\n /**\n * @define {boolean} Whether this is the Admin Node.js SDK.\n */\n NODE_ADMIN: false,\n\n /**\n * Firebase SDK Version\n */\n SDK_VERSION: '${JSCORE_VERSION}'\n};\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { CONSTANTS } from './constants';\n\n/**\n * Throws an error if the provided assertion is falsy\n */\nexport const assert = function (assertion: unknown, message: string): void {\n if (!assertion) {\n throw assertionError(message);\n }\n};\n\n/**\n * Returns an Error object suitable for throwing.\n */\nexport const assertionError = function (message: string): Error {\n return new Error(\n 'Firebase Database (' +\n CONSTANTS.SDK_VERSION +\n ') INTERNAL ASSERT FAILED: ' +\n message\n );\n};\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nconst stringToByteArray = function (str: string): number[] {\n // TODO(user): Use native implementations if/when available\n const out: number[] = [];\n let p = 0;\n for (let i = 0; i < str.length; i++) {\n let c = str.charCodeAt(i);\n if (c < 128) {\n out[p++] = c;\n } else if (c < 2048) {\n out[p++] = (c >> 6) | 192;\n out[p++] = (c & 63) | 128;\n } else if (\n (c & 0xfc00) === 0xd800 &&\n i + 1 < str.length &&\n (str.charCodeAt(i + 1) & 0xfc00) === 0xdc00\n ) {\n // Surrogate Pair\n c = 0x10000 + ((c & 0x03ff) << 10) + (str.charCodeAt(++i) & 0x03ff);\n out[p++] = (c >> 18) | 240;\n out[p++] = ((c >> 12) & 63) | 128;\n out[p++] = ((c >> 6) & 63) | 128;\n out[p++] = (c & 63) | 128;\n } else {\n out[p++] = (c >> 12) | 224;\n out[p++] = ((c >> 6) & 63) | 128;\n out[p++] = (c & 63) | 128;\n }\n }\n return out;\n};\n\n/**\n * Turns an array of numbers into the string given by the concatenation of the\n * characters to which the numbers correspond.\n * @param bytes Array of numbers representing characters.\n * @return Stringification of the array.\n */\nconst byteArrayToString = function (bytes: number[]): string {\n // TODO(user): Use native implementations if/when available\n const out: string[] = [];\n let pos = 0,\n c = 0;\n while (pos < bytes.length) {\n const c1 = bytes[pos++];\n if (c1 < 128) {\n out[c++] = String.fromCharCode(c1);\n } else if (c1 > 191 && c1 < 224) {\n const c2 = bytes[pos++];\n out[c++] = String.fromCharCode(((c1 & 31) << 6) | (c2 & 63));\n } else if (c1 > 239 && c1 < 365) {\n // Surrogate Pair\n const c2 = bytes[pos++];\n const c3 = bytes[pos++];\n const c4 = bytes[pos++];\n const u =\n (((c1 & 7) << 18) | ((c2 & 63) << 12) | ((c3 & 63) << 6) | (c4 & 63)) -\n 0x10000;\n out[c++] = String.fromCharCode(0xd800 + (u >> 10));\n out[c++] = String.fromCharCode(0xdc00 + (u & 1023));\n } else {\n const c2 = bytes[pos++];\n const c3 = bytes[pos++];\n out[c++] = String.fromCharCode(\n ((c1 & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63)\n );\n }\n }\n return out.join('');\n};\n\ninterface Base64 {\n byteToCharMap_: { [key: number]: string } | null;\n charToByteMap_: { [key: string]: number } | null;\n byteToCharMapWebSafe_: { [key: number]: string } | null;\n charToByteMapWebSafe_: { [key: string]: number } | null;\n ENCODED_VALS_BASE: string;\n readonly ENCODED_VALS: string;\n readonly ENCODED_VALS_WEBSAFE: string;\n HAS_NATIVE_SUPPORT: boolean;\n encodeByteArray(input: number[] | Uint8Array, webSafe?: boolean): string;\n encodeString(input: string, webSafe?: boolean): string;\n decodeString(input: string, webSafe: boolean): string;\n decodeStringToByteArray(input: string, webSafe: boolean): number[];\n init_(): void;\n}\n\n// We define it as an object literal instead of a class because a class compiled down to es5 can't\n// be treeshaked. https://github.com/rollup/rollup/issues/1691\n// Static lookup maps, lazily populated by init_()\nexport const base64: Base64 = {\n /**\n * Maps bytes to characters.\n */\n byteToCharMap_: null,\n\n /**\n * Maps characters to bytes.\n */\n charToByteMap_: null,\n\n /**\n * Maps bytes to websafe characters.\n * @private\n */\n byteToCharMapWebSafe_: null,\n\n /**\n * Maps websafe characters to bytes.\n * @private\n */\n charToByteMapWebSafe_: null,\n\n /**\n * Our default alphabet, shared between\n * ENCODED_VALS and ENCODED_VALS_WEBSAFE\n */\n ENCODED_VALS_BASE:\n 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' + 'abcdefghijklmnopqrstuvwxyz' + '0123456789',\n\n /**\n * Our default alphabet. Value 64 (=) is special; it means \"nothing.\"\n */\n get ENCODED_VALS() {\n return this.ENCODED_VALS_BASE + '+/=';\n },\n\n /**\n * Our websafe alphabet.\n */\n get ENCODED_VALS_WEBSAFE() {\n return this.ENCODED_VALS_BASE + '-_.';\n },\n\n /**\n * Whether this browser supports the atob and btoa functions. This extension\n * started at Mozilla but is now implemented by many browsers. We use the\n * ASSUME_* variables to avoid pulling in the full useragent detection library\n * but still allowing the standard per-browser compilations.\n *\n */\n HAS_NATIVE_SUPPORT: typeof atob === 'function',\n\n /**\n * Base64-encode an array of bytes.\n *\n * @param input An array of bytes (numbers with\n * value in [0, 255]) to encode.\n * @param webSafe Boolean indicating we should use the\n * alternative alphabet.\n * @return The base64 encoded string.\n */\n encodeByteArray(input: number[] | Uint8Array, webSafe?: boolean): string {\n if (!Array.isArray(input)) {\n throw Error('encodeByteArray takes an array as a parameter');\n }\n\n this.init_();\n\n const byteToCharMap = webSafe\n ? this.byteToCharMapWebSafe_!\n : this.byteToCharMap_!;\n\n const output = [];\n\n for (let i = 0; i < input.length; i += 3) {\n const byte1 = input[i];\n const haveByte2 = i + 1 < input.length;\n const byte2 = haveByte2 ? input[i + 1] : 0;\n const haveByte3 = i + 2 < input.length;\n const byte3 = haveByte3 ? input[i + 2] : 0;\n\n const outByte1 = byte1 >> 2;\n const outByte2 = ((byte1 & 0x03) << 4) | (byte2 >> 4);\n let outByte3 = ((byte2 & 0x0f) << 2) | (byte3 >> 6);\n let outByte4 = byte3 & 0x3f;\n\n if (!haveByte3) {\n outByte4 = 64;\n\n if (!haveByte2) {\n outByte3 = 64;\n }\n }\n\n output.push(\n byteToCharMap[outByte1],\n byteToCharMap[outByte2],\n byteToCharMap[outByte3],\n byteToCharMap[outByte4]\n );\n }\n\n return output.join('');\n },\n\n /**\n * Base64-encode a string.\n *\n * @param input A string to encode.\n * @param webSafe If true, we should use the\n * alternative alphabet.\n * @return The base64 encoded string.\n */\n encodeString(input: string, webSafe?: boolean): string {\n // Shortcut for Mozilla browsers that implement\n // a native base64 encoder in the form of \"btoa/atob\"\n if (this.HAS_NATIVE_SUPPORT && !webSafe) {\n return btoa(input);\n }\n return this.encodeByteArray(stringToByteArray(input), webSafe);\n },\n\n /**\n * Base64-decode a string.\n *\n * @param input to decode.\n * @param webSafe True if we should use the\n * alternative alphabet.\n * @return string representing the decoded value.\n */\n decodeString(input: string, webSafe: boolean): string {\n // Shortcut for Mozilla browsers that implement\n // a native base64 encoder in the form of \"btoa/atob\"\n if (this.HAS_NATIVE_SUPPORT && !webSafe) {\n return atob(input);\n }\n return byteArrayToString(this.decodeStringToByteArray(input, webSafe));\n },\n\n /**\n * Base64-decode a string.\n *\n * In base-64 decoding, groups of four characters are converted into three\n * bytes. If the encoder did not apply padding, the input length may not\n * be a multiple of 4.\n *\n * In this case, the last group will have fewer than 4 characters, and\n * padding will be inferred. If the group has one or two characters, it decodes\n * to one byte. If the group has three characters, it decodes to two bytes.\n *\n * @param input Input to decode.\n * @param webSafe True if we should use the web-safe alphabet.\n * @return bytes representing the decoded value.\n */\n decodeStringToByteArray(input: string, webSafe: boolean): number[] {\n this.init_();\n\n const charToByteMap = webSafe\n ? this.charToByteMapWebSafe_!\n : this.charToByteMap_!;\n\n const output: number[] = [];\n\n for (let i = 0; i < input.length; ) {\n const byte1 = charToByteMap[input.charAt(i++)];\n\n const haveByte2 = i < input.length;\n const byte2 = haveByte2 ? charToByteMap[input.charAt(i)] : 0;\n ++i;\n\n const haveByte3 = i < input.length;\n const byte3 = haveByte3 ? charToByteMap[input.charAt(i)] : 64;\n ++i;\n\n const haveByte4 = i < input.length;\n const byte4 = haveByte4 ? charToByteMap[input.charAt(i)] : 64;\n ++i;\n\n if (byte1 == null || byte2 == null || byte3 == null || byte4 == null) {\n throw new DecodeBase64StringError();\n }\n\n const outByte1 = (byte1 << 2) | (byte2 >> 4);\n output.push(outByte1);\n\n if (byte3 !== 64) {\n const outByte2 = ((byte2 << 4) & 0xf0) | (byte3 >> 2);\n output.push(outByte2);\n\n if (byte4 !== 64) {\n const outByte3 = ((byte3 << 6) & 0xc0) | byte4;\n output.push(outByte3);\n }\n }\n }\n\n return output;\n },\n\n /**\n * Lazy static initialization function. Called before\n * accessing any of the static map variables.\n * @private\n */\n init_() {\n if (!this.byteToCharMap_) {\n this.byteToCharMap_ = {};\n this.charToByteMap_ = {};\n this.byteToCharMapWebSafe_ = {};\n this.charToByteMapWebSafe_ = {};\n\n // We want quick mappings back and forth, so we precompute two maps.\n for (let i = 0; i < this.ENCODED_VALS.length; i++) {\n this.byteToCharMap_[i] = this.ENCODED_VALS.charAt(i);\n this.charToByteMap_[this.byteToCharMap_[i]] = i;\n this.byteToCharMapWebSafe_[i] = this.ENCODED_VALS_WEBSAFE.charAt(i);\n this.charToByteMapWebSafe_[this.byteToCharMapWebSafe_[i]] = i;\n\n // Be forgiving when decoding and correctly decode both encodings.\n if (i >= this.ENCODED_VALS_BASE.length) {\n this.charToByteMap_[this.ENCODED_VALS_WEBSAFE.charAt(i)] = i;\n this.charToByteMapWebSafe_[this.ENCODED_VALS.charAt(i)] = i;\n }\n }\n }\n }\n};\n\n/**\n * An error encountered while decoding base64 string.\n */\nexport class DecodeBase64StringError extends Error {\n readonly name = 'DecodeBase64StringError';\n}\n\n/**\n * URL-safe base64 encoding\n */\nexport const base64Encode = function (str: string): string {\n const utf8Bytes = stringToByteArray(str);\n return base64.encodeByteArray(utf8Bytes, true);\n};\n\n/**\n * URL-safe base64 encoding (without \".\" padding in the end).\n * e.g. Used in JSON Web Token (JWT) parts.\n */\nexport const base64urlEncodeWithoutPadding = function (str: string): string {\n // Use base64url encoding and remove padding in the end (dot characters).\n return base64Encode(str).replace(/\\./g, '');\n};\n\n/**\n * URL-safe base64 decoding\n *\n * NOTE: DO NOT use the global atob() function - it does NOT support the\n * base64Url variant encoding.\n *\n * @param str To be decoded\n * @return Decoded result, if possible\n */\nexport const base64Decode = function (str: string): string | null {\n try {\n return base64.decodeString(str, true);\n } catch (e) {\n console.error('base64Decode failed: ', e);\n }\n return null;\n};\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Do a deep-copy of basic JavaScript Objects or Arrays.\n */\nexport function deepCopy(value: T): T {\n return deepExtend(undefined, value) as T;\n}\n\n/**\n * Copy properties from source to target (recursively allows extension\n * of Objects and Arrays). Scalar values in the target are over-written.\n * If target is undefined, an object of the appropriate type will be created\n * (and returned).\n *\n * We recursively copy all child properties of plain Objects in the source- so\n * that namespace- like dictionaries are merged.\n *\n * Note that the target can be a function, in which case the properties in\n * the source Object are copied onto it as static properties of the Function.\n *\n * Note: we don't merge __proto__ to prevent prototype pollution\n */\nexport function deepExtend(target: unknown, source: unknown): unknown {\n if (!(source instanceof Object)) {\n return source;\n }\n\n switch (source.constructor) {\n case Date:\n // Treat Dates like scalars; if the target date object had any child\n // properties - they will be lost!\n const dateValue = source as Date;\n return new Date(dateValue.getTime());\n\n case Object:\n if (target === undefined) {\n target = {};\n }\n break;\n case Array:\n // Always copy the array source and overwrite the target.\n target = [];\n break;\n\n default:\n // Not a plain Object - treat it as a scalar.\n return source;\n }\n\n for (const prop in source) {\n // use isValidKey to guard against prototype pollution. See https://snyk.io/vuln/SNYK-JS-LODASH-450202\n if (!source.hasOwnProperty(prop) || !isValidKey(prop)) {\n continue;\n }\n (target as Record)[prop] = deepExtend(\n (target as Record)[prop],\n (source as Record)[prop]\n );\n }\n\n return target;\n}\n\nfunction isValidKey(key: string): boolean {\n return key !== '__proto__';\n}\n","/**\n * @license\n * Copyright 2022 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Polyfill for `globalThis` object.\n * @returns the `globalThis` object for the given environment.\n * @public\n */\nexport function getGlobal(): typeof globalThis {\n if (typeof self !== 'undefined') {\n return self;\n }\n if (typeof window !== 'undefined') {\n return window;\n }\n if (typeof global !== 'undefined') {\n return global;\n }\n throw new Error('Unable to locate global object.');\n}\n","/**\n * @license\n * Copyright 2022 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { base64Decode } from './crypt';\nimport { getGlobal } from './global';\n\n/**\n * Keys for experimental properties on the `FirebaseDefaults` object.\n * @public\n */\nexport type ExperimentalKey = 'authTokenSyncURL' | 'authIdTokenMaxAge';\n\n/**\n * An object that can be injected into the environment as __FIREBASE_DEFAULTS__,\n * either as a property of globalThis, a shell environment variable, or a\n * cookie.\n *\n * This object can be used to automatically configure and initialize\n * a Firebase app as well as any emulators.\n *\n * @public\n */\nexport interface FirebaseDefaults {\n config?: Record;\n emulatorHosts?: Record;\n _authTokenSyncURL?: string;\n _authIdTokenMaxAge?: number;\n /**\n * Override Firebase's runtime environment detection and\n * force the SDK to act as if it were in the specified environment.\n */\n forceEnvironment?: 'browser' | 'node';\n [key: string]: unknown;\n}\n\ndeclare global {\n // Need `var` for this to work.\n // eslint-disable-next-line no-var\n var __FIREBASE_DEFAULTS__: FirebaseDefaults | undefined;\n}\n\nconst getDefaultsFromGlobal = (): FirebaseDefaults | undefined =>\n getGlobal().__FIREBASE_DEFAULTS__;\n\n/**\n * Attempt to read defaults from a JSON string provided to\n * process(.)env(.)__FIREBASE_DEFAULTS__ or a JSON file whose path is in\n * process(.)env(.)__FIREBASE_DEFAULTS_PATH__\n * The dots are in parens because certain compilers (Vite?) cannot\n * handle seeing that variable in comments.\n * See https://github.com/firebase/firebase-js-sdk/issues/6838\n */\nconst getDefaultsFromEnvVariable = (): FirebaseDefaults | undefined => {\n if (typeof process === 'undefined' || typeof process.env === 'undefined') {\n return;\n }\n const defaultsJsonString = process.env.__FIREBASE_DEFAULTS__;\n if (defaultsJsonString) {\n return JSON.parse(defaultsJsonString);\n }\n};\n\nconst getDefaultsFromCookie = (): FirebaseDefaults | undefined => {\n if (typeof document === 'undefined') {\n return;\n }\n let match;\n try {\n match = document.cookie.match(/__FIREBASE_DEFAULTS__=([^;]+)/);\n } catch (e) {\n // Some environments such as Angular Universal SSR have a\n // `document` object but error on accessing `document.cookie`.\n return;\n }\n const decoded = match && base64Decode(match[1]);\n return decoded && JSON.parse(decoded);\n};\n\n/**\n * Get the __FIREBASE_DEFAULTS__ object. It checks in order:\n * (1) if such an object exists as a property of `globalThis`\n * (2) if such an object was provided on a shell environment variable\n * (3) if such an object exists in a cookie\n * @public\n */\nexport const getDefaults = (): FirebaseDefaults | undefined => {\n try {\n return (\n getDefaultsFromGlobal() ||\n getDefaultsFromEnvVariable() ||\n getDefaultsFromCookie()\n );\n } catch (e) {\n /**\n * Catch-all for being unable to get __FIREBASE_DEFAULTS__ due\n * to any environment case we have not accounted for. Log to\n * info instead of swallowing so we can find these unknown cases\n * and add paths for them if needed.\n */\n console.info(`Unable to get __FIREBASE_DEFAULTS__ due to: ${e}`);\n return;\n }\n};\n\n/**\n * Returns emulator host stored in the __FIREBASE_DEFAULTS__ object\n * for the given product.\n * @returns a URL host formatted like `127.0.0.1:9999` or `[::1]:4000` if available\n * @public\n */\nexport const getDefaultEmulatorHost = (\n productName: string\n): string | undefined => getDefaults()?.emulatorHosts?.[productName];\n\n/**\n * Returns emulator hostname and port stored in the __FIREBASE_DEFAULTS__ object\n * for the given product.\n * @returns a pair of hostname and port like `[\"::1\", 4000]` if available\n * @public\n */\nexport const getDefaultEmulatorHostnameAndPort = (\n productName: string\n): [hostname: string, port: number] | undefined => {\n const host = getDefaultEmulatorHost(productName);\n if (!host) {\n return undefined;\n }\n const separatorIndex = host.lastIndexOf(':'); // Finding the last since IPv6 addr also has colons.\n if (separatorIndex <= 0 || separatorIndex + 1 === host.length) {\n throw new Error(`Invalid host ${host} with no separate hostname and port!`);\n }\n // eslint-disable-next-line no-restricted-globals\n const port = parseInt(host.substring(separatorIndex + 1), 10);\n if (host[0] === '[') {\n // Bracket-quoted `[ipv6addr]:port` => return \"ipv6addr\" (without brackets).\n return [host.substring(1, separatorIndex - 1), port];\n } else {\n return [host.substring(0, separatorIndex), port];\n }\n};\n\n/**\n * Returns Firebase app config stored in the __FIREBASE_DEFAULTS__ object.\n * @public\n */\nexport const getDefaultAppConfig = (): Record | undefined =>\n getDefaults()?.config;\n\n/**\n * Returns an experimental setting on the __FIREBASE_DEFAULTS__ object (properties\n * prefixed by \"_\")\n * @public\n */\nexport const getExperimentalSetting = (\n name: T\n): FirebaseDefaults[`_${T}`] =>\n getDefaults()?.[`_${name}`] as FirebaseDefaults[`_${T}`];\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport class Deferred {\n promise: Promise;\n reject: (value?: unknown) => void = () => {};\n resolve: (value?: unknown) => void = () => {};\n constructor() {\n this.promise = new Promise((resolve, reject) => {\n this.resolve = resolve as (value?: unknown) => void;\n this.reject = reject as (value?: unknown) => void;\n });\n }\n\n /**\n * Our API internals are not promisified and cannot because our callback APIs have subtle expectations around\n * invoking promises inline, which Promises are forbidden to do. This method accepts an optional node-style callback\n * and returns a node-style callback which will resolve or reject the Deferred's promise.\n */\n wrapCallback(\n callback?: (error?: unknown, value?: unknown) => void\n ): (error: unknown, value?: unknown) => void {\n return (error, value?) => {\n if (error) {\n this.reject(error);\n } else {\n this.resolve(value);\n }\n if (typeof callback === 'function') {\n // Attaching noop handler just in case developer wasn't expecting\n // promises\n this.promise.catch(() => {});\n\n // Some of our callbacks don't expect a value and our own tests\n // assert that the parameter length is 1\n if (callback.length === 1) {\n callback(error);\n } else {\n callback(error, value);\n }\n }\n };\n }\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { base64urlEncodeWithoutPadding } from './crypt';\n\n// Firebase Auth tokens contain snake_case claims following the JWT standard / convention.\n/* eslint-disable camelcase */\n\nexport type FirebaseSignInProvider =\n | 'custom'\n | 'email'\n | 'password'\n | 'phone'\n | 'anonymous'\n | 'google.com'\n | 'facebook.com'\n | 'github.com'\n | 'twitter.com'\n | 'microsoft.com'\n | 'apple.com';\n\ninterface FirebaseIdToken {\n // Always set to https://securetoken.google.com/PROJECT_ID\n iss: string;\n\n // Always set to PROJECT_ID\n aud: string;\n\n // The user's unique ID\n sub: string;\n\n // The token issue time, in seconds since epoch\n iat: number;\n\n // The token expiry time, normally 'iat' + 3600\n exp: number;\n\n // The user's unique ID. Must be equal to 'sub'\n user_id: string;\n\n // The time the user authenticated, normally 'iat'\n auth_time: number;\n\n // The sign in provider, only set when the provider is 'anonymous'\n provider_id?: 'anonymous';\n\n // The user's primary email\n email?: string;\n\n // The user's email verification status\n email_verified?: boolean;\n\n // The user's primary phone number\n phone_number?: string;\n\n // The user's display name\n name?: string;\n\n // The user's profile photo URL\n picture?: string;\n\n // Information on all identities linked to this user\n firebase: {\n // The primary sign-in provider\n sign_in_provider: FirebaseSignInProvider;\n\n // A map of providers to the user's list of unique identifiers from\n // each provider\n identities?: { [provider in FirebaseSignInProvider]?: string[] };\n };\n\n // Custom claims set by the developer\n [claim: string]: unknown;\n\n uid?: never; // Try to catch a common mistake of \"uid\" (should be \"sub\" instead).\n}\n\nexport type EmulatorMockTokenOptions = ({ user_id: string } | { sub: string }) &\n Partial;\n\nexport function createMockUserToken(\n token: EmulatorMockTokenOptions,\n projectId?: string\n): string {\n if (token.uid) {\n throw new Error(\n 'The \"uid\" field is no longer supported by mockUserToken. Please use \"sub\" instead for Firebase Auth User ID.'\n );\n }\n // Unsecured JWTs use \"none\" as the algorithm.\n const header = {\n alg: 'none',\n type: 'JWT'\n };\n\n const project = projectId || 'demo-project';\n const iat = token.iat || 0;\n const sub = token.sub || token.user_id;\n if (!sub) {\n throw new Error(\"mockUserToken must contain 'sub' or 'user_id' field!\");\n }\n\n const payload: FirebaseIdToken = {\n // Set all required fields to decent defaults\n iss: `https://securetoken.google.com/${project}`,\n aud: project,\n iat,\n exp: iat + 3600,\n auth_time: iat,\n sub,\n user_id: sub,\n firebase: {\n sign_in_provider: 'custom',\n identities: {}\n },\n\n // Override with user options\n ...token\n };\n\n // Unsecured JWTs use the empty string as a signature.\n const signature = '';\n return [\n base64urlEncodeWithoutPadding(JSON.stringify(header)),\n base64urlEncodeWithoutPadding(JSON.stringify(payload)),\n signature\n ].join('.');\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { CONSTANTS } from './constants';\nimport { getDefaults } from './defaults';\n\n/**\n * Type placeholder for `WorkerGlobalScope` from `webworker`\n */\ndeclare class WorkerGlobalScope {}\n\n/**\n * Returns navigator.userAgent string or '' if it's not defined.\n * @return user agent string\n */\nexport function getUA(): string {\n if (\n typeof navigator !== 'undefined' &&\n typeof navigator['userAgent'] === 'string'\n ) {\n return navigator['userAgent'];\n } else {\n return '';\n }\n}\n\n/**\n * Detect Cordova / PhoneGap / Ionic frameworks on a mobile device.\n *\n * Deliberately does not rely on checking `file://` URLs (as this fails PhoneGap\n * in the Ripple emulator) nor Cordova `onDeviceReady`, which would normally\n * wait for a callback.\n */\nexport function isMobileCordova(): boolean {\n return (\n typeof window !== 'undefined' &&\n // @ts-ignore Setting up an broadly applicable index signature for Window\n // just to deal with this case would probably be a bad idea.\n !!(window['cordova'] || window['phonegap'] || window['PhoneGap']) &&\n /ios|iphone|ipod|ipad|android|blackberry|iemobile/i.test(getUA())\n );\n}\n\n/**\n * Detect Node.js.\n *\n * @return true if Node.js environment is detected or specified.\n */\n// Node detection logic from: https://github.com/iliakan/detect-node/\nexport function isNode(): boolean {\n const forceEnvironment = getDefaults()?.forceEnvironment;\n if (forceEnvironment === 'node') {\n return true;\n } else if (forceEnvironment === 'browser') {\n return false;\n }\n\n try {\n return (\n Object.prototype.toString.call(global.process) === '[object process]'\n );\n } catch (e) {\n return false;\n }\n}\n\n/**\n * Detect Browser Environment.\n * Note: This will return true for certain test frameworks that are incompletely\n * mimicking a browser, and should not lead to assuming all browser APIs are\n * available.\n */\nexport function isBrowser(): boolean {\n return typeof window !== 'undefined' || isWebWorker();\n}\n\n/**\n * Detect Web Worker context.\n */\nexport function isWebWorker(): boolean {\n return (\n typeof WorkerGlobalScope !== 'undefined' &&\n typeof self !== 'undefined' &&\n self instanceof WorkerGlobalScope\n );\n}\n\n/**\n * Detect Cloudflare Worker context.\n */\nexport function isCloudflareWorker(): boolean {\n return (\n typeof navigator !== 'undefined' &&\n navigator.userAgent === 'Cloudflare-Workers'\n );\n}\n\n/**\n * Detect browser extensions (Chrome and Firefox at least).\n */\ninterface BrowserRuntime {\n id?: unknown;\n}\ndeclare const chrome: { runtime?: BrowserRuntime };\ndeclare const browser: { runtime?: BrowserRuntime };\nexport function isBrowserExtension(): boolean {\n const runtime =\n typeof chrome === 'object'\n ? chrome.runtime\n : typeof browser === 'object'\n ? browser.runtime\n : undefined;\n return typeof runtime === 'object' && runtime.id !== undefined;\n}\n\n/**\n * Detect React Native.\n *\n * @return true if ReactNative environment is detected.\n */\nexport function isReactNative(): boolean {\n return (\n typeof navigator === 'object' && navigator['product'] === 'ReactNative'\n );\n}\n\n/** Detects Electron apps. */\nexport function isElectron(): boolean {\n return getUA().indexOf('Electron/') >= 0;\n}\n\n/** Detects Internet Explorer. */\nexport function isIE(): boolean {\n const ua = getUA();\n return ua.indexOf('MSIE ') >= 0 || ua.indexOf('Trident/') >= 0;\n}\n\n/** Detects Universal Windows Platform apps. */\nexport function isUWP(): boolean {\n return getUA().indexOf('MSAppHost/') >= 0;\n}\n\n/**\n * Detect whether the current SDK build is the Node version.\n *\n * @return true if it's the Node SDK build.\n */\nexport function isNodeSdk(): boolean {\n return CONSTANTS.NODE_CLIENT === true || CONSTANTS.NODE_ADMIN === true;\n}\n\n/** Returns true if we are running in Safari. */\nexport function isSafari(): boolean {\n return (\n !isNode() &&\n !!navigator.userAgent &&\n navigator.userAgent.includes('Safari') &&\n !navigator.userAgent.includes('Chrome')\n );\n}\n\n/**\n * This method checks if indexedDB is supported by current browser/service worker context\n * @return true if indexedDB is supported by current browser/service worker context\n */\nexport function isIndexedDBAvailable(): boolean {\n try {\n return typeof indexedDB === 'object';\n } catch (e) {\n return false;\n }\n}\n\n/**\n * This method validates browser/sw context for indexedDB by opening a dummy indexedDB database and reject\n * if errors occur during the database open operation.\n *\n * @throws exception if current browser/sw context can't run idb.open (ex: Safari iframe, Firefox\n * private browsing)\n */\nexport function validateIndexedDBOpenable(): Promise {\n return new Promise((resolve, reject) => {\n try {\n let preExist: boolean = true;\n const DB_CHECK_NAME =\n 'validate-browser-context-for-indexeddb-analytics-module';\n const request = self.indexedDB.open(DB_CHECK_NAME);\n request.onsuccess = () => {\n request.result.close();\n // delete database only when it doesn't pre-exist\n if (!preExist) {\n self.indexedDB.deleteDatabase(DB_CHECK_NAME);\n }\n resolve(true);\n };\n request.onupgradeneeded = () => {\n preExist = false;\n };\n\n request.onerror = () => {\n reject(request.error?.message || '');\n };\n } catch (error) {\n reject(error);\n }\n });\n}\n\n/**\n *\n * This method checks whether cookie is enabled within current browser\n * @return true if cookie is enabled within current browser\n */\nexport function areCookiesEnabled(): boolean {\n if (typeof navigator === 'undefined' || !navigator.cookieEnabled) {\n return false;\n }\n return true;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Standardized Firebase Error.\n *\n * Usage:\n *\n * // TypeScript string literals for type-safe codes\n * type Err =\n * 'unknown' |\n * 'object-not-found'\n * ;\n *\n * // Closure enum for type-safe error codes\n * // at-enum {string}\n * var Err = {\n * UNKNOWN: 'unknown',\n * OBJECT_NOT_FOUND: 'object-not-found',\n * }\n *\n * let errors: Map = {\n * 'generic-error': \"Unknown error\",\n * 'file-not-found': \"Could not find file: {$file}\",\n * };\n *\n * // Type-safe function - must pass a valid error code as param.\n * let error = new ErrorFactory('service', 'Service', errors);\n *\n * ...\n * throw error.create(Err.GENERIC);\n * ...\n * throw error.create(Err.FILE_NOT_FOUND, {'file': fileName});\n * ...\n * // Service: Could not file file: foo.txt (service/file-not-found).\n *\n * catch (e) {\n * assert(e.message === \"Could not find file: foo.txt.\");\n * if ((e as FirebaseError)?.code === 'service/file-not-found') {\n * console.log(\"Could not read file: \" + e['file']);\n * }\n * }\n */\n\nexport type ErrorMap = {\n readonly [K in ErrorCode]: string;\n};\n\nconst ERROR_NAME = 'FirebaseError';\n\nexport interface StringLike {\n toString(): string;\n}\n\nexport interface ErrorData {\n [key: string]: unknown;\n}\n\n// Based on code from:\n// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error#Custom_Error_Types\nexport class FirebaseError extends Error {\n /** The custom name for all FirebaseErrors. */\n readonly name: string = ERROR_NAME;\n\n constructor(\n /** The error code for this error. */\n readonly code: string,\n message: string,\n /** Custom data for this error. */\n public customData?: Record\n ) {\n super(message);\n\n // Fix For ES5\n // https://github.com/Microsoft/TypeScript-wiki/blob/master/Breaking-Changes.md#extending-built-ins-like-error-array-and-map-may-no-longer-work\n Object.setPrototypeOf(this, FirebaseError.prototype);\n\n // Maintains proper stack trace for where our error was thrown.\n // Only available on V8.\n if (Error.captureStackTrace) {\n Error.captureStackTrace(this, ErrorFactory.prototype.create);\n }\n }\n}\n\nexport class ErrorFactory<\n ErrorCode extends string,\n ErrorParams extends { readonly [K in ErrorCode]?: ErrorData } = {}\n> {\n constructor(\n private readonly service: string,\n private readonly serviceName: string,\n private readonly errors: ErrorMap\n ) {}\n\n create(\n code: K,\n ...data: K extends keyof ErrorParams ? [ErrorParams[K]] : []\n ): FirebaseError {\n const customData = (data[0] as ErrorData) || {};\n const fullCode = `${this.service}/${code}`;\n const template = this.errors[code];\n\n const message = template ? replaceTemplate(template, customData) : 'Error';\n // Service Name: Error message (service/code).\n const fullMessage = `${this.serviceName}: ${message} (${fullCode}).`;\n\n const error = new FirebaseError(fullCode, fullMessage, customData);\n\n return error;\n }\n}\n\nfunction replaceTemplate(template: string, data: ErrorData): string {\n return template.replace(PATTERN, (_, key) => {\n const value = data[key];\n return value != null ? String(value) : `<${key}?>`;\n });\n}\n\nconst PATTERN = /\\{\\$([^}]+)}/g;\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Evaluates a JSON string into a javascript object.\n *\n * @param {string} str A string containing JSON.\n * @return {*} The javascript object representing the specified JSON.\n */\nexport function jsonEval(str: string): unknown {\n return JSON.parse(str);\n}\n\n/**\n * Returns JSON representing a javascript object.\n * @param {*} data JavaScript object to be stringified.\n * @return {string} The JSON contents of the object.\n */\nexport function stringify(data: unknown): string {\n return JSON.stringify(data);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { base64Decode } from './crypt';\nimport { jsonEval } from './json';\n\ninterface Claims {\n [key: string]: {};\n}\n\ninterface DecodedToken {\n header: object;\n claims: Claims;\n data: object;\n signature: string;\n}\n\n/**\n * Decodes a Firebase auth. token into constituent parts.\n *\n * Notes:\n * - May return with invalid / incomplete claims if there's no native base64 decoding support.\n * - Doesn't check if the token is actually valid.\n */\nexport const decode = function (token: string): DecodedToken {\n let header = {},\n claims: Claims = {},\n data = {},\n signature = '';\n\n try {\n const parts = token.split('.');\n header = jsonEval(base64Decode(parts[0]) || '') as object;\n claims = jsonEval(base64Decode(parts[1]) || '') as Claims;\n signature = parts[2];\n data = claims['d'] || {};\n delete claims['d'];\n } catch (e) {}\n\n return {\n header,\n claims,\n data,\n signature\n };\n};\n\ninterface DecodedToken {\n header: object;\n claims: Claims;\n data: object;\n signature: string;\n}\n\n/**\n * Decodes a Firebase auth. token and checks the validity of its time-based claims. Will return true if the\n * token is within the time window authorized by the 'nbf' (not-before) and 'iat' (issued-at) claims.\n *\n * Notes:\n * - May return a false negative if there's no native base64 decoding support.\n * - Doesn't check if the token is actually valid.\n */\nexport const isValidTimestamp = function (token: string): boolean {\n const claims: Claims = decode(token).claims;\n const now: number = Math.floor(new Date().getTime() / 1000);\n let validSince: number = 0,\n validUntil: number = 0;\n\n if (typeof claims === 'object') {\n if (claims.hasOwnProperty('nbf')) {\n validSince = claims['nbf'] as number;\n } else if (claims.hasOwnProperty('iat')) {\n validSince = claims['iat'] as number;\n }\n\n if (claims.hasOwnProperty('exp')) {\n validUntil = claims['exp'] as number;\n } else {\n // token will expire after 24h by default\n validUntil = validSince + 86400;\n }\n }\n\n return (\n !!now &&\n !!validSince &&\n !!validUntil &&\n now >= validSince &&\n now <= validUntil\n );\n};\n\n/**\n * Decodes a Firebase auth. token and returns its issued at time if valid, null otherwise.\n *\n * Notes:\n * - May return null if there's no native base64 decoding support.\n * - Doesn't check if the token is actually valid.\n */\nexport const issuedAtTime = function (token: string): number | null {\n const claims: Claims = decode(token).claims;\n if (typeof claims === 'object' && claims.hasOwnProperty('iat')) {\n return claims['iat'] as number;\n }\n return null;\n};\n\n/**\n * Decodes a Firebase auth. token and checks the validity of its format. Expects a valid issued-at time.\n *\n * Notes:\n * - May return a false negative if there's no native base64 decoding support.\n * - Doesn't check if the token is actually valid.\n */\nexport const isValidFormat = function (token: string): boolean {\n const decoded = decode(token),\n claims = decoded.claims;\n\n return !!claims && typeof claims === 'object' && claims.hasOwnProperty('iat');\n};\n\n/**\n * Attempts to peer into an auth token and determine if it's an admin auth token by looking at the claims portion.\n *\n * Notes:\n * - May return a false negative if there's no native base64 decoding support.\n * - Doesn't check if the token is actually valid.\n */\nexport const isAdmin = function (token: string): boolean {\n const claims: Claims = decode(token).claims;\n return typeof claims === 'object' && claims['admin'] === true;\n};\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport function contains(obj: T, key: string): boolean {\n return Object.prototype.hasOwnProperty.call(obj, key);\n}\n\nexport function safeGet(\n obj: T,\n key: K\n): T[K] | undefined {\n if (Object.prototype.hasOwnProperty.call(obj, key)) {\n return obj[key];\n } else {\n return undefined;\n }\n}\n\nexport function isEmpty(obj: object): obj is {} {\n for (const key in obj) {\n if (Object.prototype.hasOwnProperty.call(obj, key)) {\n return false;\n }\n }\n return true;\n}\n\nexport function map(\n obj: { [key in K]: V },\n fn: (value: V, key: K, obj: { [key in K]: V }) => U,\n contextObj?: unknown\n): { [key in K]: U } {\n const res: Partial<{ [key in K]: U }> = {};\n for (const key in obj) {\n if (Object.prototype.hasOwnProperty.call(obj, key)) {\n res[key] = fn.call(contextObj, obj[key], key, obj);\n }\n }\n return res as { [key in K]: U };\n}\n\n/**\n * Deep equal two objects. Support Arrays and Objects.\n */\nexport function deepEqual(a: object, b: object): boolean {\n if (a === b) {\n return true;\n }\n\n const aKeys = Object.keys(a);\n const bKeys = Object.keys(b);\n for (const k of aKeys) {\n if (!bKeys.includes(k)) {\n return false;\n }\n\n const aProp = (a as Record)[k];\n const bProp = (b as Record)[k];\n if (isObject(aProp) && isObject(bProp)) {\n if (!deepEqual(aProp, bProp)) {\n return false;\n }\n } else if (aProp !== bProp) {\n return false;\n }\n }\n\n for (const k of bKeys) {\n if (!aKeys.includes(k)) {\n return false;\n }\n }\n return true;\n}\n\nfunction isObject(thing: unknown): thing is object {\n return thing !== null && typeof thing === 'object';\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Returns a querystring-formatted string (e.g. &arg=val&arg2=val2) from a\n * params object (e.g. {arg: 'val', arg2: 'val2'})\n * Note: You must prepend it with ? when adding it to a URL.\n */\nexport function querystring(querystringParams: {\n [key: string]: string | number;\n}): string {\n const params = [];\n for (const [key, value] of Object.entries(querystringParams)) {\n if (Array.isArray(value)) {\n value.forEach(arrayVal => {\n params.push(\n encodeURIComponent(key) + '=' + encodeURIComponent(arrayVal)\n );\n });\n } else {\n params.push(encodeURIComponent(key) + '=' + encodeURIComponent(value));\n }\n }\n return params.length ? '&' + params.join('&') : '';\n}\n\n/**\n * Decodes a querystring (e.g. ?arg=val&arg2=val2) into a params object\n * (e.g. {arg: 'val', arg2: 'val2'})\n */\nexport function querystringDecode(querystring: string): Record {\n const obj: Record = {};\n const tokens = querystring.replace(/^\\?/, '').split('&');\n\n tokens.forEach(token => {\n if (token) {\n const [key, value] = token.split('=');\n obj[decodeURIComponent(key)] = decodeURIComponent(value);\n }\n });\n return obj;\n}\n\n/**\n * Extract the query string part of a URL, including the leading question mark (if present).\n */\nexport function extractQuerystring(url: string): string {\n const queryStart = url.indexOf('?');\n if (!queryStart) {\n return '';\n }\n const fragmentStart = url.indexOf('#', queryStart);\n return url.substring(\n queryStart,\n fragmentStart > 0 ? fragmentStart : undefined\n );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview SHA-1 cryptographic hash.\n * Variable names follow the notation in FIPS PUB 180-3:\n * http://csrc.nist.gov/publications/fips/fips180-3/fips180-3_final.pdf.\n *\n * Usage:\n * var sha1 = new sha1();\n * sha1.update(bytes);\n * var hash = sha1.digest();\n *\n * Performance:\n * Chrome 23: ~400 Mbit/s\n * Firefox 16: ~250 Mbit/s\n *\n */\n\n/**\n * SHA-1 cryptographic hash constructor.\n *\n * The properties declared here are discussed in the above algorithm document.\n * @constructor\n * @final\n * @struct\n */\nexport class Sha1 {\n /**\n * Holds the previous values of accumulated variables a-e in the compress_\n * function.\n * @private\n */\n private chain_: number[] = [];\n\n /**\n * A buffer holding the partially computed hash result.\n * @private\n */\n private buf_: number[] = [];\n\n /**\n * An array of 80 bytes, each a part of the message to be hashed. Referred to\n * as the message schedule in the docs.\n * @private\n */\n private W_: number[] = [];\n\n /**\n * Contains data needed to pad messages less than 64 bytes.\n * @private\n */\n private pad_: number[] = [];\n\n /**\n * @private {number}\n */\n private inbuf_: number = 0;\n\n /**\n * @private {number}\n */\n private total_: number = 0;\n\n blockSize: number;\n\n constructor() {\n this.blockSize = 512 / 8;\n\n this.pad_[0] = 128;\n for (let i = 1; i < this.blockSize; ++i) {\n this.pad_[i] = 0;\n }\n\n this.reset();\n }\n\n reset(): void {\n this.chain_[0] = 0x67452301;\n this.chain_[1] = 0xefcdab89;\n this.chain_[2] = 0x98badcfe;\n this.chain_[3] = 0x10325476;\n this.chain_[4] = 0xc3d2e1f0;\n\n this.inbuf_ = 0;\n this.total_ = 0;\n }\n\n /**\n * Internal compress helper function.\n * @param buf Block to compress.\n * @param offset Offset of the block in the buffer.\n * @private\n */\n compress_(buf: number[] | Uint8Array | string, offset?: number): void {\n if (!offset) {\n offset = 0;\n }\n\n const W = this.W_;\n\n // get 16 big endian words\n if (typeof buf === 'string') {\n for (let i = 0; i < 16; i++) {\n // TODO(user): [bug 8140122] Recent versions of Safari for Mac OS and iOS\n // have a bug that turns the post-increment ++ operator into pre-increment\n // during JIT compilation. We have code that depends heavily on SHA-1 for\n // correctness and which is affected by this bug, so I've removed all uses\n // of post-increment ++ in which the result value is used. We can revert\n // this change once the Safari bug\n // (https://bugs.webkit.org/show_bug.cgi?id=109036) has been fixed and\n // most clients have been updated.\n W[i] =\n (buf.charCodeAt(offset) << 24) |\n (buf.charCodeAt(offset + 1) << 16) |\n (buf.charCodeAt(offset + 2) << 8) |\n buf.charCodeAt(offset + 3);\n offset += 4;\n }\n } else {\n for (let i = 0; i < 16; i++) {\n W[i] =\n (buf[offset] << 24) |\n (buf[offset + 1] << 16) |\n (buf[offset + 2] << 8) |\n buf[offset + 3];\n offset += 4;\n }\n }\n\n // expand to 80 words\n for (let i = 16; i < 80; i++) {\n const t = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16];\n W[i] = ((t << 1) | (t >>> 31)) & 0xffffffff;\n }\n\n let a = this.chain_[0];\n let b = this.chain_[1];\n let c = this.chain_[2];\n let d = this.chain_[3];\n let e = this.chain_[4];\n let f, k;\n\n // TODO(user): Try to unroll this loop to speed up the computation.\n for (let i = 0; i < 80; i++) {\n if (i < 40) {\n if (i < 20) {\n f = d ^ (b & (c ^ d));\n k = 0x5a827999;\n } else {\n f = b ^ c ^ d;\n k = 0x6ed9eba1;\n }\n } else {\n if (i < 60) {\n f = (b & c) | (d & (b | c));\n k = 0x8f1bbcdc;\n } else {\n f = b ^ c ^ d;\n k = 0xca62c1d6;\n }\n }\n\n const t = (((a << 5) | (a >>> 27)) + f + e + k + W[i]) & 0xffffffff;\n e = d;\n d = c;\n c = ((b << 30) | (b >>> 2)) & 0xffffffff;\n b = a;\n a = t;\n }\n\n this.chain_[0] = (this.chain_[0] + a) & 0xffffffff;\n this.chain_[1] = (this.chain_[1] + b) & 0xffffffff;\n this.chain_[2] = (this.chain_[2] + c) & 0xffffffff;\n this.chain_[3] = (this.chain_[3] + d) & 0xffffffff;\n this.chain_[4] = (this.chain_[4] + e) & 0xffffffff;\n }\n\n update(bytes?: number[] | Uint8Array | string, length?: number): void {\n // TODO(johnlenz): tighten the function signature and remove this check\n if (bytes == null) {\n return;\n }\n\n if (length === undefined) {\n length = bytes.length;\n }\n\n const lengthMinusBlock = length - this.blockSize;\n let n = 0;\n // Using local instead of member variables gives ~5% speedup on Firefox 16.\n const buf = this.buf_;\n let inbuf = this.inbuf_;\n\n // The outer while loop should execute at most twice.\n while (n < length) {\n // When we have no data in the block to top up, we can directly process the\n // input buffer (assuming it contains sufficient data). This gives ~25%\n // speedup on Chrome 23 and ~15% speedup on Firefox 16, but requires that\n // the data is provided in large chunks (or in multiples of 64 bytes).\n if (inbuf === 0) {\n while (n <= lengthMinusBlock) {\n this.compress_(bytes, n);\n n += this.blockSize;\n }\n }\n\n if (typeof bytes === 'string') {\n while (n < length) {\n buf[inbuf] = bytes.charCodeAt(n);\n ++inbuf;\n ++n;\n if (inbuf === this.blockSize) {\n this.compress_(buf);\n inbuf = 0;\n // Jump to the outer loop so we use the full-block optimization.\n break;\n }\n }\n } else {\n while (n < length) {\n buf[inbuf] = bytes[n];\n ++inbuf;\n ++n;\n if (inbuf === this.blockSize) {\n this.compress_(buf);\n inbuf = 0;\n // Jump to the outer loop so we use the full-block optimization.\n break;\n }\n }\n }\n }\n\n this.inbuf_ = inbuf;\n this.total_ += length;\n }\n\n /** @override */\n digest(): number[] {\n const digest: number[] = [];\n let totalBits = this.total_ * 8;\n\n // Add pad 0x80 0x00*.\n if (this.inbuf_ < 56) {\n this.update(this.pad_, 56 - this.inbuf_);\n } else {\n this.update(this.pad_, this.blockSize - (this.inbuf_ - 56));\n }\n\n // Add # bits.\n for (let i = this.blockSize - 1; i >= 56; i--) {\n this.buf_[i] = totalBits & 255;\n totalBits /= 256; // Don't use bit-shifting here!\n }\n\n this.compress_(this.buf_);\n\n let n = 0;\n for (let i = 0; i < 5; i++) {\n for (let j = 24; j >= 0; j -= 8) {\n digest[n] = (this.chain_[i] >> j) & 255;\n ++n;\n }\n }\n return digest;\n }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nexport type NextFn = (value: T) => void;\nexport type ErrorFn = (error: Error) => void;\nexport type CompleteFn = () => void;\n\nexport interface Observer {\n // Called once for each value in a stream of values.\n next: NextFn;\n\n // A stream terminates by a single call to EITHER error() or complete().\n error: ErrorFn;\n\n // No events will be sent to next() once complete() is called.\n complete: CompleteFn;\n}\n\nexport type PartialObserver = Partial>;\n\n// TODO: Support also Unsubscribe.unsubscribe?\nexport type Unsubscribe = () => void;\n\n/**\n * The Subscribe interface has two forms - passing the inline function\n * callbacks, or a object interface with callback properties.\n */\nexport interface Subscribe {\n (next?: NextFn, error?: ErrorFn, complete?: CompleteFn): Unsubscribe;\n (observer: PartialObserver): Unsubscribe;\n}\n\nexport interface Observable {\n // Subscribe method\n subscribe: Subscribe;\n}\n\nexport type Executor = (observer: Observer) => void;\n\n/**\n * Helper to make a Subscribe function (just like Promise helps make a\n * Thenable).\n *\n * @param executor Function which can make calls to a single Observer\n * as a proxy.\n * @param onNoObservers Callback when count of Observers goes to zero.\n */\nexport function createSubscribe(\n executor: Executor,\n onNoObservers?: Executor\n): Subscribe {\n const proxy = new ObserverProxy(executor, onNoObservers);\n return proxy.subscribe.bind(proxy);\n}\n\n/**\n * Implement fan-out for any number of Observers attached via a subscribe\n * function.\n */\nclass ObserverProxy implements Observer {\n private observers: Array> | undefined = [];\n private unsubscribes: Unsubscribe[] = [];\n private onNoObservers: Executor | undefined;\n private observerCount = 0;\n // Micro-task scheduling by calling task.then().\n private task = Promise.resolve();\n private finalized = false;\n private finalError?: Error;\n\n /**\n * @param executor Function which can make calls to a single Observer\n * as a proxy.\n * @param onNoObservers Callback when count of Observers goes to zero.\n */\n constructor(executor: Executor, onNoObservers?: Executor) {\n this.onNoObservers = onNoObservers;\n // Call the executor asynchronously so subscribers that are called\n // synchronously after the creation of the subscribe function\n // can still receive the very first value generated in the executor.\n this.task\n .then(() => {\n executor(this);\n })\n .catch(e => {\n this.error(e);\n });\n }\n\n next(value: T): void {\n this.forEachObserver((observer: Observer) => {\n observer.next(value);\n });\n }\n\n error(error: Error): void {\n this.forEachObserver((observer: Observer) => {\n observer.error(error);\n });\n this.close(error);\n }\n\n complete(): void {\n this.forEachObserver((observer: Observer) => {\n observer.complete();\n });\n this.close();\n }\n\n /**\n * Subscribe function that can be used to add an Observer to the fan-out list.\n *\n * - We require that no event is sent to a subscriber synchronously to their\n * call to subscribe().\n */\n subscribe(\n nextOrObserver?: NextFn | PartialObserver,\n error?: ErrorFn,\n complete?: CompleteFn\n ): Unsubscribe {\n let observer: Observer;\n\n if (\n nextOrObserver === undefined &&\n error === undefined &&\n complete === undefined\n ) {\n throw new Error('Missing Observer.');\n }\n\n // Assemble an Observer object when passed as callback functions.\n if (\n implementsAnyMethods(nextOrObserver as { [key: string]: unknown }, [\n 'next',\n 'error',\n 'complete'\n ])\n ) {\n observer = nextOrObserver as Observer;\n } else {\n observer = {\n next: nextOrObserver as NextFn,\n error,\n complete\n } as Observer;\n }\n\n if (observer.next === undefined) {\n observer.next = noop as NextFn;\n }\n if (observer.error === undefined) {\n observer.error = noop as ErrorFn;\n }\n if (observer.complete === undefined) {\n observer.complete = noop as CompleteFn;\n }\n\n const unsub = this.unsubscribeOne.bind(this, this.observers!.length);\n\n // Attempt to subscribe to a terminated Observable - we\n // just respond to the Observer with the final error or complete\n // event.\n if (this.finalized) {\n // eslint-disable-next-line @typescript-eslint/no-floating-promises\n this.task.then(() => {\n try {\n if (this.finalError) {\n observer.error(this.finalError);\n } else {\n observer.complete();\n }\n } catch (e) {\n // nothing\n }\n return;\n });\n }\n\n this.observers!.push(observer as Observer);\n\n return unsub;\n }\n\n // Unsubscribe is synchronous - we guarantee that no events are sent to\n // any unsubscribed Observer.\n private unsubscribeOne(i: number): void {\n if (this.observers === undefined || this.observers[i] === undefined) {\n return;\n }\n\n delete this.observers[i];\n\n this.observerCount -= 1;\n if (this.observerCount === 0 && this.onNoObservers !== undefined) {\n this.onNoObservers(this);\n }\n }\n\n private forEachObserver(fn: (observer: Observer) => void): void {\n if (this.finalized) {\n // Already closed by previous event....just eat the additional values.\n return;\n }\n\n // Since sendOne calls asynchronously - there is no chance that\n // this.observers will become undefined.\n for (let i = 0; i < this.observers!.length; i++) {\n this.sendOne(i, fn);\n }\n }\n\n // Call the Observer via one of it's callback function. We are careful to\n // confirm that the observe has not been unsubscribed since this asynchronous\n // function had been queued.\n private sendOne(i: number, fn: (observer: Observer) => void): void {\n // Execute the callback asynchronously\n // eslint-disable-next-line @typescript-eslint/no-floating-promises\n this.task.then(() => {\n if (this.observers !== undefined && this.observers[i] !== undefined) {\n try {\n fn(this.observers[i]);\n } catch (e) {\n // Ignore exceptions raised in Observers or missing methods of an\n // Observer.\n // Log error to console. b/31404806\n if (typeof console !== 'undefined' && console.error) {\n console.error(e);\n }\n }\n }\n });\n }\n\n private close(err?: Error): void {\n if (this.finalized) {\n return;\n }\n this.finalized = true;\n if (err !== undefined) {\n this.finalError = err;\n }\n // Proxy is no longer needed - garbage collect references\n // eslint-disable-next-line @typescript-eslint/no-floating-promises\n this.task.then(() => {\n this.observers = undefined;\n this.onNoObservers = undefined;\n });\n }\n}\n\n/** Turn synchronous function into one called asynchronously. */\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function async(fn: Function, onError?: ErrorFn): Function {\n return (...args: unknown[]) => {\n Promise.resolve(true)\n .then(() => {\n fn(...args);\n })\n .catch((error: Error) => {\n if (onError) {\n onError(error);\n }\n });\n };\n}\n\n/**\n * Return true if the object passed in implements any of the named methods.\n */\nfunction implementsAnyMethods(\n obj: { [key: string]: unknown },\n methods: string[]\n): boolean {\n if (typeof obj !== 'object' || obj === null) {\n return false;\n }\n\n for (const method of methods) {\n if (method in obj && typeof obj[method] === 'function') {\n return true;\n }\n }\n\n return false;\n}\n\nfunction noop(): void {\n // do nothing\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Check to make sure the appropriate number of arguments are provided for a public function.\n * Throws an error if it fails.\n *\n * @param fnName The function name\n * @param minCount The minimum number of arguments to allow for the function call\n * @param maxCount The maximum number of argument to allow for the function call\n * @param argCount The actual number of arguments provided.\n */\nexport const validateArgCount = function (\n fnName: string,\n minCount: number,\n maxCount: number,\n argCount: number\n): void {\n let argError;\n if (argCount < minCount) {\n argError = 'at least ' + minCount;\n } else if (argCount > maxCount) {\n argError = maxCount === 0 ? 'none' : 'no more than ' + maxCount;\n }\n if (argError) {\n const error =\n fnName +\n ' failed: Was called with ' +\n argCount +\n (argCount === 1 ? ' argument.' : ' arguments.') +\n ' Expects ' +\n argError +\n '.';\n throw new Error(error);\n }\n};\n\n/**\n * Generates a string to prefix an error message about failed argument validation\n *\n * @param fnName The function name\n * @param argName The name of the argument\n * @return The prefix to add to the error thrown for validation.\n */\nexport function errorPrefix(fnName: string, argName: string): string {\n return `${fnName} failed: ${argName} argument `;\n}\n\n/**\n * @param fnName\n * @param argumentNumber\n * @param namespace\n * @param optional\n */\nexport function validateNamespace(\n fnName: string,\n namespace: string,\n optional: boolean\n): void {\n if (optional && !namespace) {\n return;\n }\n if (typeof namespace !== 'string') {\n //TODO: I should do more validation here. We only allow certain chars in namespaces.\n throw new Error(\n errorPrefix(fnName, 'namespace') + 'must be a valid firebase namespace.'\n );\n }\n}\n\nexport function validateCallback(\n fnName: string,\n argumentName: string,\n // eslint-disable-next-line @typescript-eslint/ban-types\n callback: Function,\n optional: boolean\n): void {\n if (optional && !callback) {\n return;\n }\n if (typeof callback !== 'function') {\n throw new Error(\n errorPrefix(fnName, argumentName) + 'must be a valid function.'\n );\n }\n}\n\nexport function validateContextObject(\n fnName: string,\n argumentName: string,\n context: unknown,\n optional: boolean\n): void {\n if (optional && !context) {\n return;\n }\n if (typeof context !== 'object' || context === null) {\n throw new Error(\n errorPrefix(fnName, argumentName) + 'must be a valid context object.'\n );\n }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { assert } from './assert';\n\n// Code originally came from goog.crypt.stringToUtf8ByteArray, but for some reason they\n// automatically replaced '\\r\\n' with '\\n', and they didn't handle surrogate pairs,\n// so it's been modified.\n\n// Note that not all Unicode characters appear as single characters in JavaScript strings.\n// fromCharCode returns the UTF-16 encoding of a character - so some Unicode characters\n// use 2 characters in JavaScript. All 4-byte UTF-8 characters begin with a first\n// character in the range 0xD800 - 0xDBFF (the first character of a so-called surrogate\n// pair).\n// See http://www.ecma-international.org/ecma-262/5.1/#sec-15.1.3\n\n/**\n * @param {string} str\n * @return {Array}\n */\nexport const stringToByteArray = function (str: string): number[] {\n const out: number[] = [];\n let p = 0;\n for (let i = 0; i < str.length; i++) {\n let c = str.charCodeAt(i);\n\n // Is this the lead surrogate in a surrogate pair?\n if (c >= 0xd800 && c <= 0xdbff) {\n const high = c - 0xd800; // the high 10 bits.\n i++;\n assert(i < str.length, 'Surrogate pair missing trail surrogate.');\n const low = str.charCodeAt(i) - 0xdc00; // the low 10 bits.\n c = 0x10000 + (high << 10) + low;\n }\n\n if (c < 128) {\n out[p++] = c;\n } else if (c < 2048) {\n out[p++] = (c >> 6) | 192;\n out[p++] = (c & 63) | 128;\n } else if (c < 65536) {\n out[p++] = (c >> 12) | 224;\n out[p++] = ((c >> 6) & 63) | 128;\n out[p++] = (c & 63) | 128;\n } else {\n out[p++] = (c >> 18) | 240;\n out[p++] = ((c >> 12) & 63) | 128;\n out[p++] = ((c >> 6) & 63) | 128;\n out[p++] = (c & 63) | 128;\n }\n }\n return out;\n};\n\n/**\n * Calculate length without actually converting; useful for doing cheaper validation.\n * @param {string} str\n * @return {number}\n */\nexport const stringLength = function (str: string): number {\n let p = 0;\n for (let i = 0; i < str.length; i++) {\n const c = str.charCodeAt(i);\n if (c < 128) {\n p++;\n } else if (c < 2048) {\n p += 2;\n } else if (c >= 0xd800 && c <= 0xdbff) {\n // Lead surrogate of a surrogate pair. The pair together will take 4 bytes to represent.\n p += 4;\n i++; // skip trail surrogate.\n } else {\n p += 3;\n }\n }\n return p;\n};\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * The amount of milliseconds to exponentially increase.\n */\nconst DEFAULT_INTERVAL_MILLIS = 1000;\n\n/**\n * The factor to backoff by.\n * Should be a number greater than 1.\n */\nconst DEFAULT_BACKOFF_FACTOR = 2;\n\n/**\n * The maximum milliseconds to increase to.\n *\n *
Visible for testing\n */\nexport const MAX_VALUE_MILLIS = 4 * 60 * 60 * 1000; // Four hours, like iOS and Android.\n\n/**\n * The percentage of backoff time to randomize by.\n * See\n * http://go/safe-client-behavior#step-1-determine-the-appropriate-retry-interval-to-handle-spike-traffic\n * for context.\n *\n *
Visible for testing\n */\nexport const RANDOM_FACTOR = 0.5;\n\n/**\n * Based on the backoff method from\n * https://github.com/google/closure-library/blob/master/closure/goog/math/exponentialbackoff.js.\n * Extracted here so we don't need to pass metadata and a stateful ExponentialBackoff object around.\n */\nexport function calculateBackoffMillis(\n backoffCount: number,\n intervalMillis: number = DEFAULT_INTERVAL_MILLIS,\n backoffFactor: number = DEFAULT_BACKOFF_FACTOR\n): number {\n // Calculates an exponentially increasing value.\n // Deviation: calculates value from count and a constant interval, so we only need to save value\n // and count to restore state.\n const currBaseValue = intervalMillis * Math.pow(backoffFactor, backoffCount);\n\n // A random \"fuzz\" to avoid waves of retries.\n // Deviation: randomFactor is required.\n const randomWait = Math.round(\n // A fraction of the backoff value to add/subtract.\n // Deviation: changes multiplication order to improve readability.\n RANDOM_FACTOR *\n currBaseValue *\n // A random float (rounded to int by Math.round above) in the range [-1, 1]. Determines\n // if we add or subtract.\n (Math.random() - 0.5) *\n 2\n );\n\n // Limits backoff to max to avoid effectively permanent backoff.\n return Math.min(MAX_VALUE_MILLIS, currBaseValue + randomWait);\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport interface Compat {\n _delegate: T;\n}\n\nexport function getModularInstance(\n service: Compat | ExpService\n): ExpService {\n if (service && (service as Compat)._delegate) {\n return (service as Compat)._delegate;\n } else {\n return service as ExpService;\n }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport {\n InstantiationMode,\n InstanceFactory,\n ComponentType,\n Dictionary,\n Name,\n onInstanceCreatedCallback\n} from './types';\n\n/**\n * Component for service name T, e.g. `auth`, `auth-internal`\n */\nexport class Component {\n multipleInstances = false;\n /**\n * Properties to be added to the service namespace\n */\n serviceProps: Dictionary = {};\n\n instantiationMode = InstantiationMode.LAZY;\n\n onInstanceCreated: onInstanceCreatedCallback | null = null;\n\n /**\n *\n * @param name The public service name, e.g. app, auth, firestore, database\n * @param instanceFactory Service factory responsible for creating the public interface\n * @param type whether the service provided by the component is public or private\n */\n constructor(\n readonly name: T,\n readonly instanceFactory: InstanceFactory,\n readonly type: ComponentType\n ) {}\n\n setInstantiationMode(mode: InstantiationMode): this {\n this.instantiationMode = mode;\n return this;\n }\n\n setMultipleInstances(multipleInstances: boolean): this {\n this.multipleInstances = multipleInstances;\n return this;\n }\n\n setServiceProps(props: Dictionary): this {\n this.serviceProps = props;\n return this;\n }\n\n setInstanceCreatedCallback(callback: onInstanceCreatedCallback): this {\n this.onInstanceCreated = callback;\n return this;\n }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport const DEFAULT_ENTRY_NAME = '[DEFAULT]';\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Deferred } from '@firebase/util';\nimport { ComponentContainer } from './component_container';\nimport { DEFAULT_ENTRY_NAME } from './constants';\nimport {\n InitializeOptions,\n InstantiationMode,\n Name,\n NameServiceMapping,\n OnInitCallBack\n} from './types';\nimport { Component } from './component';\n\n/**\n * Provider for instance for service name T, e.g. 'auth', 'auth-internal'\n * NameServiceMapping[T] is an alias for the type of the instance\n */\nexport class Provider {\n private component: Component | null = null;\n private readonly instances: Map = new Map();\n private readonly instancesDeferred: Map<\n string,\n Deferred\n > = new Map();\n private readonly instancesOptions: Map> =\n new Map();\n private onInitCallbacks: Map>> = new Map();\n\n constructor(\n private readonly name: T,\n private readonly container: ComponentContainer\n ) {}\n\n /**\n * @param identifier A provider can provide multiple instances of a service\n * if this.component.multipleInstances is true.\n */\n get(identifier?: string): Promise {\n // if multipleInstances is not supported, use the default name\n const normalizedIdentifier = this.normalizeInstanceIdentifier(identifier);\n\n if (!this.instancesDeferred.has(normalizedIdentifier)) {\n const deferred = new Deferred();\n this.instancesDeferred.set(normalizedIdentifier, deferred);\n\n if (\n this.isInitialized(normalizedIdentifier) ||\n this.shouldAutoInitialize()\n ) {\n // initialize the service if it can be auto-initialized\n try {\n const instance = this.getOrInitializeService({\n instanceIdentifier: normalizedIdentifier\n });\n if (instance) {\n deferred.resolve(instance);\n }\n } catch (e) {\n // when the instance factory throws an exception during get(), it should not cause\n // a fatal error. We just return the unresolved promise in this case.\n }\n }\n }\n\n return this.instancesDeferred.get(normalizedIdentifier)!.promise;\n }\n\n /**\n *\n * @param options.identifier A provider can provide multiple instances of a service\n * if this.component.multipleInstances is true.\n * @param options.optional If optional is false or not provided, the method throws an error when\n * the service is not immediately available.\n * If optional is true, the method returns null if the service is not immediately available.\n */\n getImmediate(options: {\n identifier?: string;\n optional: true;\n }): NameServiceMapping[T] | null;\n getImmediate(options?: {\n identifier?: string;\n optional?: false;\n }): NameServiceMapping[T];\n getImmediate(options?: {\n identifier?: string;\n optional?: boolean;\n }): NameServiceMapping[T] | null {\n // if multipleInstances is not supported, use the default name\n const normalizedIdentifier = this.normalizeInstanceIdentifier(\n options?.identifier\n );\n const optional = options?.optional ?? false;\n\n if (\n this.isInitialized(normalizedIdentifier) ||\n this.shouldAutoInitialize()\n ) {\n try {\n return this.getOrInitializeService({\n instanceIdentifier: normalizedIdentifier\n });\n } catch (e) {\n if (optional) {\n return null;\n } else {\n throw e;\n }\n }\n } else {\n // In case a component is not initialized and should/cannot be auto-initialized at the moment, return null if the optional flag is set, or throw\n if (optional) {\n return null;\n } else {\n throw Error(`Service ${this.name} is not available`);\n }\n }\n }\n\n getComponent(): Component | null {\n return this.component;\n }\n\n setComponent(component: Component): void {\n if (component.name !== this.name) {\n throw Error(\n `Mismatching Component ${component.name} for Provider ${this.name}.`\n );\n }\n\n if (this.component) {\n throw Error(`Component for ${this.name} has already been provided`);\n }\n\n this.component = component;\n\n // return early without attempting to initialize the component if the component requires explicit initialization (calling `Provider.initialize()`)\n if (!this.shouldAutoInitialize()) {\n return;\n }\n\n // if the service is eager, initialize the default instance\n if (isComponentEager(component)) {\n try {\n this.getOrInitializeService({ instanceIdentifier: DEFAULT_ENTRY_NAME });\n } catch (e) {\n // when the instance factory for an eager Component throws an exception during the eager\n // initialization, it should not cause a fatal error.\n // TODO: Investigate if we need to make it configurable, because some component may want to cause\n // a fatal error in this case?\n }\n }\n\n // Create service instances for the pending promises and resolve them\n // NOTE: if this.multipleInstances is false, only the default instance will be created\n // and all promises with resolve with it regardless of the identifier.\n for (const [\n instanceIdentifier,\n instanceDeferred\n ] of this.instancesDeferred.entries()) {\n const normalizedIdentifier =\n this.normalizeInstanceIdentifier(instanceIdentifier);\n\n try {\n // `getOrInitializeService()` should always return a valid instance since a component is guaranteed. use ! to make typescript happy.\n const instance = this.getOrInitializeService({\n instanceIdentifier: normalizedIdentifier\n })!;\n instanceDeferred.resolve(instance);\n } catch (e) {\n // when the instance factory throws an exception, it should not cause\n // a fatal error. We just leave the promise unresolved.\n }\n }\n }\n\n clearInstance(identifier: string = DEFAULT_ENTRY_NAME): void {\n this.instancesDeferred.delete(identifier);\n this.instancesOptions.delete(identifier);\n this.instances.delete(identifier);\n }\n\n // app.delete() will call this method on every provider to delete the services\n // TODO: should we mark the provider as deleted?\n async delete(): Promise {\n const services = Array.from(this.instances.values());\n\n await Promise.all([\n ...services\n .filter(service => 'INTERNAL' in service) // legacy services\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n .map(service => (service as any).INTERNAL!.delete()),\n ...services\n .filter(service => '_delete' in service) // modularized services\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n .map(service => (service as any)._delete())\n ]);\n }\n\n isComponentSet(): boolean {\n return this.component != null;\n }\n\n isInitialized(identifier: string = DEFAULT_ENTRY_NAME): boolean {\n return this.instances.has(identifier);\n }\n\n getOptions(identifier: string = DEFAULT_ENTRY_NAME): Record {\n return this.instancesOptions.get(identifier) || {};\n }\n\n initialize(opts: InitializeOptions = {}): NameServiceMapping[T] {\n const { options = {} } = opts;\n const normalizedIdentifier = this.normalizeInstanceIdentifier(\n opts.instanceIdentifier\n );\n if (this.isInitialized(normalizedIdentifier)) {\n throw Error(\n `${this.name}(${normalizedIdentifier}) has already been initialized`\n );\n }\n\n if (!this.isComponentSet()) {\n throw Error(`Component ${this.name} has not been registered yet`);\n }\n\n const instance = this.getOrInitializeService({\n instanceIdentifier: normalizedIdentifier,\n options\n })!;\n\n // resolve any pending promise waiting for the service instance\n for (const [\n instanceIdentifier,\n instanceDeferred\n ] of this.instancesDeferred.entries()) {\n const normalizedDeferredIdentifier =\n this.normalizeInstanceIdentifier(instanceIdentifier);\n if (normalizedIdentifier === normalizedDeferredIdentifier) {\n instanceDeferred.resolve(instance);\n }\n }\n\n return instance;\n }\n\n /**\n *\n * @param callback - a function that will be invoked after the provider has been initialized by calling provider.initialize().\n * The function is invoked SYNCHRONOUSLY, so it should not execute any longrunning tasks in order to not block the program.\n *\n * @param identifier An optional instance identifier\n * @returns a function to unregister the callback\n */\n onInit(callback: OnInitCallBack, identifier?: string): () => void {\n const normalizedIdentifier = this.normalizeInstanceIdentifier(identifier);\n const existingCallbacks =\n this.onInitCallbacks.get(normalizedIdentifier) ??\n new Set>();\n existingCallbacks.add(callback);\n this.onInitCallbacks.set(normalizedIdentifier, existingCallbacks);\n\n const existingInstance = this.instances.get(normalizedIdentifier);\n if (existingInstance) {\n callback(existingInstance, normalizedIdentifier);\n }\n\n return () => {\n existingCallbacks.delete(callback);\n };\n }\n\n /**\n * Invoke onInit callbacks synchronously\n * @param instance the service instance`\n */\n private invokeOnInitCallbacks(\n instance: NameServiceMapping[T],\n identifier: string\n ): void {\n const callbacks = this.onInitCallbacks.get(identifier);\n if (!callbacks) {\n return;\n }\n for (const callback of callbacks) {\n try {\n callback(instance, identifier);\n } catch {\n // ignore errors in the onInit callback\n }\n }\n }\n\n private getOrInitializeService({\n instanceIdentifier,\n options = {}\n }: {\n instanceIdentifier: string;\n options?: Record;\n }): NameServiceMapping[T] | null {\n let instance = this.instances.get(instanceIdentifier);\n if (!instance && this.component) {\n instance = this.component.instanceFactory(this.container, {\n instanceIdentifier: normalizeIdentifierForFactory(instanceIdentifier),\n options\n });\n this.instances.set(instanceIdentifier, instance);\n this.instancesOptions.set(instanceIdentifier, options);\n\n /**\n * Invoke onInit listeners.\n * Note this.component.onInstanceCreated is different, which is used by the component creator,\n * while onInit listeners are registered by consumers of the provider.\n */\n this.invokeOnInitCallbacks(instance, instanceIdentifier);\n\n /**\n * Order is important\n * onInstanceCreated() should be called after this.instances.set(instanceIdentifier, instance); which\n * makes `isInitialized()` return true.\n */\n if (this.component.onInstanceCreated) {\n try {\n this.component.onInstanceCreated(\n this.container,\n instanceIdentifier,\n instance\n );\n } catch {\n // ignore errors in the onInstanceCreatedCallback\n }\n }\n }\n\n return instance || null;\n }\n\n private normalizeInstanceIdentifier(\n identifier: string = DEFAULT_ENTRY_NAME\n ): string {\n if (this.component) {\n return this.component.multipleInstances ? identifier : DEFAULT_ENTRY_NAME;\n } else {\n return identifier; // assume multiple instances are supported before the component is provided.\n }\n }\n\n private shouldAutoInitialize(): boolean {\n return (\n !!this.component &&\n this.component.instantiationMode !== InstantiationMode.EXPLICIT\n );\n }\n}\n\n// undefined should be passed to the service factory for the default instance\nfunction normalizeIdentifierForFactory(identifier: string): string | undefined {\n return identifier === DEFAULT_ENTRY_NAME ? undefined : identifier;\n}\n\nfunction isComponentEager(component: Component): boolean {\n return component.instantiationMode === InstantiationMode.EAGER;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Provider } from './provider';\nimport { Component } from './component';\nimport { Name } from './types';\n\n/**\n * ComponentContainer that provides Providers for service name T, e.g. `auth`, `auth-internal`\n */\nexport class ComponentContainer {\n private readonly providers = new Map>();\n\n constructor(private readonly name: string) {}\n\n /**\n *\n * @param component Component being added\n * @param overwrite When a component with the same name has already been registered,\n * if overwrite is true: overwrite the existing component with the new component and create a new\n * provider with the new component. It can be useful in tests where you want to use different mocks\n * for different tests.\n * if overwrite is false: throw an exception\n */\n addComponent(component: Component): void {\n const provider = this.getProvider(component.name);\n if (provider.isComponentSet()) {\n throw new Error(\n `Component ${component.name} has already been registered with ${this.name}`\n );\n }\n\n provider.setComponent(component);\n }\n\n addOrOverwriteComponent(component: Component): void {\n const provider = this.getProvider(component.name);\n if (provider.isComponentSet()) {\n // delete the existing provider from the container, so we can register the new component\n this.providers.delete(component.name);\n }\n\n this.addComponent(component);\n }\n\n /**\n * getProvider provides a type safe interface where it can only be called with a field name\n * present in NameServiceMapping interface.\n *\n * Firebase SDKs providing services should extend NameServiceMapping interface to register\n * themselves.\n */\n getProvider(name: T): Provider {\n if (this.providers.has(name)) {\n return this.providers.get(name) as unknown as Provider;\n }\n\n // create a Provider for a service that hasn't registered with Firebase\n const provider = new Provider(name, this);\n this.providers.set(name, provider as unknown as Provider);\n\n return provider as Provider;\n }\n\n getProviders(): Array> {\n return Array.from(this.providers.values());\n }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport type LogLevelString =\n | 'debug'\n | 'verbose'\n | 'info'\n | 'warn'\n | 'error'\n | 'silent';\n\nexport interface LogOptions {\n level: LogLevelString;\n}\n\nexport type LogCallback = (callbackParams: LogCallbackParams) => void;\n\nexport interface LogCallbackParams {\n level: LogLevelString;\n message: string;\n args: unknown[];\n type: string;\n}\n\n/**\n * A container for all of the Logger instances\n */\nexport const instances: Logger[] = [];\n\n/**\n * The JS SDK supports 5 log levels and also allows a user the ability to\n * silence the logs altogether.\n *\n * The order is a follows:\n * DEBUG < VERBOSE < INFO < WARN < ERROR\n *\n * All of the log types above the current log level will be captured (i.e. if\n * you set the log level to `INFO`, errors will still be logged, but `DEBUG` and\n * `VERBOSE` logs will not)\n */\nexport enum LogLevel {\n DEBUG,\n VERBOSE,\n INFO,\n WARN,\n ERROR,\n SILENT\n}\n\nconst levelStringToEnum: { [key in LogLevelString]: LogLevel } = {\n 'debug': LogLevel.DEBUG,\n 'verbose': LogLevel.VERBOSE,\n 'info': LogLevel.INFO,\n 'warn': LogLevel.WARN,\n 'error': LogLevel.ERROR,\n 'silent': LogLevel.SILENT\n};\n\n/**\n * The default log level\n */\nconst defaultLogLevel: LogLevel = LogLevel.INFO;\n\n/**\n * We allow users the ability to pass their own log handler. We will pass the\n * type of log, the current log level, and any other arguments passed (i.e. the\n * messages that the user wants to log) to this function.\n */\nexport type LogHandler = (\n loggerInstance: Logger,\n logType: LogLevel,\n ...args: unknown[]\n) => void;\n\n/**\n * By default, `console.debug` is not displayed in the developer console (in\n * chrome). To avoid forcing users to have to opt-in to these logs twice\n * (i.e. once for firebase, and once in the console), we are sending `DEBUG`\n * logs to the `console.log` function.\n */\nconst ConsoleMethod = {\n [LogLevel.DEBUG]: 'log',\n [LogLevel.VERBOSE]: 'log',\n [LogLevel.INFO]: 'info',\n [LogLevel.WARN]: 'warn',\n [LogLevel.ERROR]: 'error'\n};\n\n/**\n * The default log handler will forward DEBUG, VERBOSE, INFO, WARN, and ERROR\n * messages on to their corresponding console counterparts (if the log method\n * is supported by the current log level)\n */\nconst defaultLogHandler: LogHandler = (instance, logType, ...args): void => {\n if (logType < instance.logLevel) {\n return;\n }\n const now = new Date().toISOString();\n const method = ConsoleMethod[logType as keyof typeof ConsoleMethod];\n if (method) {\n console[method as 'log' | 'info' | 'warn' | 'error'](\n `[${now}] ${instance.name}:`,\n ...args\n );\n } else {\n throw new Error(\n `Attempted to log a message with an invalid logType (value: ${logType})`\n );\n }\n};\n\nexport class Logger {\n /**\n * Gives you an instance of a Logger to capture messages according to\n * Firebase's logging scheme.\n *\n * @param name The name that the logs will be associated with\n */\n constructor(public name: string) {\n /**\n * Capture the current instance for later use\n */\n instances.push(this);\n }\n\n /**\n * The log level of the given Logger instance.\n */\n private _logLevel = defaultLogLevel;\n\n get logLevel(): LogLevel {\n return this._logLevel;\n }\n\n set logLevel(val: LogLevel) {\n if (!(val in LogLevel)) {\n throw new TypeError(`Invalid value \"${val}\" assigned to \\`logLevel\\``);\n }\n this._logLevel = val;\n }\n\n // Workaround for setter/getter having to be the same type.\n setLogLevel(val: LogLevel | LogLevelString): void {\n this._logLevel = typeof val === 'string' ? levelStringToEnum[val] : val;\n }\n\n /**\n * The main (internal) log handler for the Logger instance.\n * Can be set to a new function in internal package code but not by user.\n */\n private _logHandler: LogHandler = defaultLogHandler;\n get logHandler(): LogHandler {\n return this._logHandler;\n }\n set logHandler(val: LogHandler) {\n if (typeof val !== 'function') {\n throw new TypeError('Value assigned to `logHandler` must be a function');\n }\n this._logHandler = val;\n }\n\n /**\n * The optional, additional, user-defined log handler for the Logger instance.\n */\n private _userLogHandler: LogHandler | null = null;\n get userLogHandler(): LogHandler | null {\n return this._userLogHandler;\n }\n set userLogHandler(val: LogHandler | null) {\n this._userLogHandler = val;\n }\n\n /**\n * The functions below are all based on the `console` interface\n */\n\n debug(...args: unknown[]): void {\n this._userLogHandler && this._userLogHandler(this, LogLevel.DEBUG, ...args);\n this._logHandler(this, LogLevel.DEBUG, ...args);\n }\n log(...args: unknown[]): void {\n this._userLogHandler &&\n this._userLogHandler(this, LogLevel.VERBOSE, ...args);\n this._logHandler(this, LogLevel.VERBOSE, ...args);\n }\n info(...args: unknown[]): void {\n this._userLogHandler && this._userLogHandler(this, LogLevel.INFO, ...args);\n this._logHandler(this, LogLevel.INFO, ...args);\n }\n warn(...args: unknown[]): void {\n this._userLogHandler && this._userLogHandler(this, LogLevel.WARN, ...args);\n this._logHandler(this, LogLevel.WARN, ...args);\n }\n error(...args: unknown[]): void {\n this._userLogHandler && this._userLogHandler(this, LogLevel.ERROR, ...args);\n this._logHandler(this, LogLevel.ERROR, ...args);\n }\n}\n\nexport function setLogLevel(level: LogLevelString | LogLevel): void {\n instances.forEach(inst => {\n inst.setLogLevel(level);\n });\n}\n\nexport function setUserLogHandler(\n logCallback: LogCallback | null,\n options?: LogOptions\n): void {\n for (const instance of instances) {\n let customLogLevel: LogLevel | null = null;\n if (options && options.level) {\n customLogLevel = levelStringToEnum[options.level];\n }\n if (logCallback === null) {\n instance.userLogHandler = null;\n } else {\n instance.userLogHandler = (\n instance: Logger,\n level: LogLevel,\n ...args: unknown[]\n ) => {\n const message = args\n .map(arg => {\n if (arg == null) {\n return null;\n } else if (typeof arg === 'string') {\n return arg;\n } else if (typeof arg === 'number' || typeof arg === 'boolean') {\n return arg.toString();\n } else if (arg instanceof Error) {\n return arg.message;\n } else {\n try {\n return JSON.stringify(arg);\n } catch (ignored) {\n return null;\n }\n }\n })\n .filter(arg => arg)\n .join(' ');\n if (level >= (customLogLevel ?? instance.logLevel)) {\n logCallback({\n level: LogLevel[level].toLowerCase() as LogLevelString,\n message,\n args,\n type: instance.name\n });\n }\n };\n }\n }\n}\n","import defineProperty from \"./defineProperty.js\";\nfunction ownKeys(e, r) {\n var t = Object.keys(e);\n if (Object.getOwnPropertySymbols) {\n var o = Object.getOwnPropertySymbols(e);\n r && (o = o.filter(function (r) {\n return Object.getOwnPropertyDescriptor(e, r).enumerable;\n })), t.push.apply(t, o);\n }\n return t;\n}\nexport default function _objectSpread2(e) {\n for (var r = 1; r < arguments.length; r++) {\n var t = null != arguments[r] ? arguments[r] : {};\n r % 2 ? ownKeys(Object(t), !0).forEach(function (r) {\n defineProperty(e, r, t[r]);\n }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) {\n Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r));\n });\n }\n return e;\n}","const instanceOfAny = (object, constructors) => constructors.some((c) => object instanceof c);\n\nlet idbProxyableTypes;\nlet cursorAdvanceMethods;\n// This is a function to prevent it throwing up in node environments.\nfunction getIdbProxyableTypes() {\n return (idbProxyableTypes ||\n (idbProxyableTypes = [\n IDBDatabase,\n IDBObjectStore,\n IDBIndex,\n IDBCursor,\n IDBTransaction,\n ]));\n}\n// This is a function to prevent it throwing up in node environments.\nfunction getCursorAdvanceMethods() {\n return (cursorAdvanceMethods ||\n (cursorAdvanceMethods = [\n IDBCursor.prototype.advance,\n IDBCursor.prototype.continue,\n IDBCursor.prototype.continuePrimaryKey,\n ]));\n}\nconst cursorRequestMap = new WeakMap();\nconst transactionDoneMap = new WeakMap();\nconst transactionStoreNamesMap = new WeakMap();\nconst transformCache = new WeakMap();\nconst reverseTransformCache = new WeakMap();\nfunction promisifyRequest(request) {\n const promise = new Promise((resolve, reject) => {\n const unlisten = () => {\n request.removeEventListener('success', success);\n request.removeEventListener('error', error);\n };\n const success = () => {\n resolve(wrap(request.result));\n unlisten();\n };\n const error = () => {\n reject(request.error);\n unlisten();\n };\n request.addEventListener('success', success);\n request.addEventListener('error', error);\n });\n promise\n .then((value) => {\n // Since cursoring reuses the IDBRequest (*sigh*), we cache it for later retrieval\n // (see wrapFunction).\n if (value instanceof IDBCursor) {\n cursorRequestMap.set(value, request);\n }\n // Catching to avoid \"Uncaught Promise exceptions\"\n })\n .catch(() => { });\n // This mapping exists in reverseTransformCache but doesn't doesn't exist in transformCache. This\n // is because we create many promises from a single IDBRequest.\n reverseTransformCache.set(promise, request);\n return promise;\n}\nfunction cacheDonePromiseForTransaction(tx) {\n // Early bail if we've already created a done promise for this transaction.\n if (transactionDoneMap.has(tx))\n return;\n const done = new Promise((resolve, reject) => {\n const unlisten = () => {\n tx.removeEventListener('complete', complete);\n tx.removeEventListener('error', error);\n tx.removeEventListener('abort', error);\n };\n const complete = () => {\n resolve();\n unlisten();\n };\n const error = () => {\n reject(tx.error || new DOMException('AbortError', 'AbortError'));\n unlisten();\n };\n tx.addEventListener('complete', complete);\n tx.addEventListener('error', error);\n tx.addEventListener('abort', error);\n });\n // Cache it for later retrieval.\n transactionDoneMap.set(tx, done);\n}\nlet idbProxyTraps = {\n get(target, prop, receiver) {\n if (target instanceof IDBTransaction) {\n // Special handling for transaction.done.\n if (prop === 'done')\n return transactionDoneMap.get(target);\n // Polyfill for objectStoreNames because of Edge.\n if (prop === 'objectStoreNames') {\n return target.objectStoreNames || transactionStoreNamesMap.get(target);\n }\n // Make tx.store return the only store in the transaction, or undefined if there are many.\n if (prop === 'store') {\n return receiver.objectStoreNames[1]\n ? undefined\n : receiver.objectStore(receiver.objectStoreNames[0]);\n }\n }\n // Else transform whatever we get back.\n return wrap(target[prop]);\n },\n set(target, prop, value) {\n target[prop] = value;\n return true;\n },\n has(target, prop) {\n if (target instanceof IDBTransaction &&\n (prop === 'done' || prop === 'store')) {\n return true;\n }\n return prop in target;\n },\n};\nfunction replaceTraps(callback) {\n idbProxyTraps = callback(idbProxyTraps);\n}\nfunction wrapFunction(func) {\n // Due to expected object equality (which is enforced by the caching in `wrap`), we\n // only create one new func per func.\n // Edge doesn't support objectStoreNames (booo), so we polyfill it here.\n if (func === IDBDatabase.prototype.transaction &&\n !('objectStoreNames' in IDBTransaction.prototype)) {\n return function (storeNames, ...args) {\n const tx = func.call(unwrap(this), storeNames, ...args);\n transactionStoreNamesMap.set(tx, storeNames.sort ? storeNames.sort() : [storeNames]);\n return wrap(tx);\n };\n }\n // Cursor methods are special, as the behaviour is a little more different to standard IDB. In\n // IDB, you advance the cursor and wait for a new 'success' on the IDBRequest that gave you the\n // cursor. It's kinda like a promise that can resolve with many values. That doesn't make sense\n // with real promises, so each advance methods returns a new promise for the cursor object, or\n // undefined if the end of the cursor has been reached.\n if (getCursorAdvanceMethods().includes(func)) {\n return function (...args) {\n // Calling the original function with the proxy as 'this' causes ILLEGAL INVOCATION, so we use\n // the original object.\n func.apply(unwrap(this), args);\n return wrap(cursorRequestMap.get(this));\n };\n }\n return function (...args) {\n // Calling the original function with the proxy as 'this' causes ILLEGAL INVOCATION, so we use\n // the original object.\n return wrap(func.apply(unwrap(this), args));\n };\n}\nfunction transformCachableValue(value) {\n if (typeof value === 'function')\n return wrapFunction(value);\n // This doesn't return, it just creates a 'done' promise for the transaction,\n // which is later returned for transaction.done (see idbObjectHandler).\n if (value instanceof IDBTransaction)\n cacheDonePromiseForTransaction(value);\n if (instanceOfAny(value, getIdbProxyableTypes()))\n return new Proxy(value, idbProxyTraps);\n // Return the same value back if we're not going to transform it.\n return value;\n}\nfunction wrap(value) {\n // We sometimes generate multiple promises from a single IDBRequest (eg when cursoring), because\n // IDB is weird and a single IDBRequest can yield many responses, so these can't be cached.\n if (value instanceof IDBRequest)\n return promisifyRequest(value);\n // If we've already transformed this value before, reuse the transformed value.\n // This is faster, but it also provides object equality.\n if (transformCache.has(value))\n return transformCache.get(value);\n const newValue = transformCachableValue(value);\n // Not all types are transformed.\n // These may be primitive types, so they can't be WeakMap keys.\n if (newValue !== value) {\n transformCache.set(value, newValue);\n reverseTransformCache.set(newValue, value);\n }\n return newValue;\n}\nconst unwrap = (value) => reverseTransformCache.get(value);\n\nexport { reverseTransformCache as a, instanceOfAny as i, replaceTraps as r, unwrap as u, wrap as w };\n","import { w as wrap, r as replaceTraps } from './wrap-idb-value.js';\nexport { u as unwrap, w as wrap } from './wrap-idb-value.js';\n\n/**\n * Open a database.\n *\n * @param name Name of the database.\n * @param version Schema version.\n * @param callbacks Additional callbacks.\n */\nfunction openDB(name, version, { blocked, upgrade, blocking, terminated } = {}) {\n const request = indexedDB.open(name, version);\n const openPromise = wrap(request);\n if (upgrade) {\n request.addEventListener('upgradeneeded', (event) => {\n upgrade(wrap(request.result), event.oldVersion, event.newVersion, wrap(request.transaction), event);\n });\n }\n if (blocked) {\n request.addEventListener('blocked', (event) => blocked(\n // Casting due to https://github.com/microsoft/TypeScript-DOM-lib-generator/pull/1405\n event.oldVersion, event.newVersion, event));\n }\n openPromise\n .then((db) => {\n if (terminated)\n db.addEventListener('close', () => terminated());\n if (blocking) {\n db.addEventListener('versionchange', (event) => blocking(event.oldVersion, event.newVersion, event));\n }\n })\n .catch(() => { });\n return openPromise;\n}\n/**\n * Delete a database.\n *\n * @param name Name of the database.\n */\nfunction deleteDB(name, { blocked } = {}) {\n const request = indexedDB.deleteDatabase(name);\n if (blocked) {\n request.addEventListener('blocked', (event) => blocked(\n // Casting due to https://github.com/microsoft/TypeScript-DOM-lib-generator/pull/1405\n event.oldVersion, event));\n }\n return wrap(request).then(() => undefined);\n}\n\nconst readMethods = ['get', 'getKey', 'getAll', 'getAllKeys', 'count'];\nconst writeMethods = ['put', 'add', 'delete', 'clear'];\nconst cachedMethods = new Map();\nfunction getMethod(target, prop) {\n if (!(target instanceof IDBDatabase &&\n !(prop in target) &&\n typeof prop === 'string')) {\n return;\n }\n if (cachedMethods.get(prop))\n return cachedMethods.get(prop);\n const targetFuncName = prop.replace(/FromIndex$/, '');\n const useIndex = prop !== targetFuncName;\n const isWrite = writeMethods.includes(targetFuncName);\n if (\n // Bail if the target doesn't exist on the target. Eg, getAll isn't in Edge.\n !(targetFuncName in (useIndex ? IDBIndex : IDBObjectStore).prototype) ||\n !(isWrite || readMethods.includes(targetFuncName))) {\n return;\n }\n const method = async function (storeName, ...args) {\n // isWrite ? 'readwrite' : undefined gzipps better, but fails in Edge :(\n const tx = this.transaction(storeName, isWrite ? 'readwrite' : 'readonly');\n let target = tx.store;\n if (useIndex)\n target = target.index(args.shift());\n // Must reject if op rejects.\n // If it's a write operation, must reject if tx.done rejects.\n // Must reject with op rejection first.\n // Must resolve with op value.\n // Must handle both promises (no unhandled rejections)\n return (await Promise.all([\n target[targetFuncName](...args),\n isWrite && tx.done,\n ]))[0];\n };\n cachedMethods.set(prop, method);\n return method;\n}\nreplaceTraps((oldTraps) => ({\n ...oldTraps,\n get: (target, prop, receiver) => getMethod(target, prop) || oldTraps.get(target, prop, receiver),\n has: (target, prop) => !!getMethod(target, prop) || oldTraps.has(target, prop),\n}));\n\nexport { deleteDB, openDB };\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n ComponentContainer,\n ComponentType,\n Provider,\n Name\n} from '@firebase/component';\nimport { PlatformLoggerService, VersionService } from './types';\n\nexport class PlatformLoggerServiceImpl implements PlatformLoggerService {\n constructor(private readonly container: ComponentContainer) {}\n // In initial implementation, this will be called by installations on\n // auth token refresh, and installations will send this string.\n getPlatformInfoString(): string {\n const providers = this.container.getProviders();\n // Loop through providers and get library/version pairs from any that are\n // version components.\n return providers\n .map(provider => {\n if (isVersionServiceProvider(provider)) {\n const service = provider.getImmediate() as VersionService;\n return `${service.library}/${service.version}`;\n } else {\n return null;\n }\n })\n .filter(logString => logString)\n .join(' ');\n }\n}\n/**\n *\n * @param provider check if this provider provides a VersionService\n *\n * NOTE: Using Provider<'app-version'> is a hack to indicate that the provider\n * provides VersionService. The provider is not necessarily a 'app-version'\n * provider.\n */\nfunction isVersionServiceProvider(provider: Provider): boolean {\n const component = provider.getComponent();\n return component?.type === ComponentType.VERSION;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Logger } from '@firebase/logger';\n\nexport const logger = new Logger('@firebase/app');\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { name as appName } from '../package.json';\nimport { name as appCompatName } from '../../app-compat/package.json';\nimport { name as analyticsCompatName } from '../../../packages/analytics-compat/package.json';\nimport { name as analyticsName } from '../../../packages/analytics/package.json';\nimport { name as appCheckCompatName } from '../../../packages/app-check-compat/package.json';\nimport { name as appCheckName } from '../../../packages/app-check/package.json';\nimport { name as authName } from '../../../packages/auth/package.json';\nimport { name as authCompatName } from '../../../packages/auth-compat/package.json';\nimport { name as databaseName } from '../../../packages/database/package.json';\nimport { name as databaseCompatName } from '../../../packages/database-compat/package.json';\nimport { name as functionsName } from '../../../packages/functions/package.json';\nimport { name as functionsCompatName } from '../../../packages/functions-compat/package.json';\nimport { name as installationsName } from '../../../packages/installations/package.json';\nimport { name as installationsCompatName } from '../../../packages/installations-compat/package.json';\nimport { name as messagingName } from '../../../packages/messaging/package.json';\nimport { name as messagingCompatName } from '../../../packages/messaging-compat/package.json';\nimport { name as performanceName } from '../../../packages/performance/package.json';\nimport { name as performanceCompatName } from '../../../packages/performance-compat/package.json';\nimport { name as remoteConfigName } from '../../../packages/remote-config/package.json';\nimport { name as remoteConfigCompatName } from '../../../packages/remote-config-compat/package.json';\nimport { name as storageName } from '../../../packages/storage/package.json';\nimport { name as storageCompatName } from '../../../packages/storage-compat/package.json';\nimport { name as firestoreName } from '../../../packages/firestore/package.json';\nimport { name as vertexName } from '../../../packages/vertexai/package.json';\nimport { name as firestoreCompatName } from '../../../packages/firestore-compat/package.json';\nimport { name as packageName } from '../../../packages/firebase/package.json';\n\n/**\n * The default app name\n *\n * @internal\n */\nexport const DEFAULT_ENTRY_NAME = '[DEFAULT]';\n\nexport const PLATFORM_LOG_STRING = {\n [appName]: 'fire-core',\n [appCompatName]: 'fire-core-compat',\n [analyticsName]: 'fire-analytics',\n [analyticsCompatName]: 'fire-analytics-compat',\n [appCheckName]: 'fire-app-check',\n [appCheckCompatName]: 'fire-app-check-compat',\n [authName]: 'fire-auth',\n [authCompatName]: 'fire-auth-compat',\n [databaseName]: 'fire-rtdb',\n [databaseCompatName]: 'fire-rtdb-compat',\n [functionsName]: 'fire-fn',\n [functionsCompatName]: 'fire-fn-compat',\n [installationsName]: 'fire-iid',\n [installationsCompatName]: 'fire-iid-compat',\n [messagingName]: 'fire-fcm',\n [messagingCompatName]: 'fire-fcm-compat',\n [performanceName]: 'fire-perf',\n [performanceCompatName]: 'fire-perf-compat',\n [remoteConfigName]: 'fire-rc',\n [remoteConfigCompatName]: 'fire-rc-compat',\n [storageName]: 'fire-gcs',\n [storageCompatName]: 'fire-gcs-compat',\n [firestoreName]: 'fire-fst',\n [firestoreCompatName]: 'fire-fst-compat',\n [vertexName]: 'fire-vertex',\n 'fire-js': 'fire-js', // Platform identifier for JS SDK.\n [packageName]: 'fire-js-all'\n} as const;\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n FirebaseApp,\n FirebaseOptions,\n FirebaseServerApp\n} from './public-types';\nimport { Component, Provider, Name } from '@firebase/component';\nimport { logger } from './logger';\nimport { DEFAULT_ENTRY_NAME } from './constants';\nimport { FirebaseAppImpl } from './firebaseApp';\nimport { FirebaseServerAppImpl } from './firebaseServerApp';\n\n/**\n * @internal\n */\nexport const _apps = new Map();\n\n/**\n * @internal\n */\nexport const _serverApps = new Map();\n\n/**\n * Registered components.\n *\n * @internal\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport const _components = new Map>();\n\n/**\n * @param component - the component being added to this app's container\n *\n * @internal\n */\nexport function _addComponent(\n app: FirebaseApp,\n component: Component\n): void {\n try {\n (app as FirebaseAppImpl).container.addComponent(component);\n } catch (e) {\n logger.debug(\n `Component ${component.name} failed to register with FirebaseApp ${app.name}`,\n e\n );\n }\n}\n\n/**\n *\n * @internal\n */\nexport function _addOrOverwriteComponent(\n app: FirebaseApp,\n component: Component\n): void {\n (app as FirebaseAppImpl).container.addOrOverwriteComponent(component);\n}\n\n/**\n *\n * @param component - the component to register\n * @returns whether or not the component is registered successfully\n *\n * @internal\n */\nexport function _registerComponent(\n component: Component\n): boolean {\n const componentName = component.name;\n if (_components.has(componentName)) {\n logger.debug(\n `There were multiple attempts to register component ${componentName}.`\n );\n\n return false;\n }\n\n _components.set(componentName, component);\n\n // add the component to existing app instances\n for (const app of _apps.values()) {\n _addComponent(app as FirebaseAppImpl, component);\n }\n\n for (const serverApp of _serverApps.values()) {\n _addComponent(serverApp as FirebaseServerAppImpl, component);\n }\n\n return true;\n}\n\n/**\n *\n * @param app - FirebaseApp instance\n * @param name - service name\n *\n * @returns the provider for the service with the matching name\n *\n * @internal\n */\nexport function _getProvider(\n app: FirebaseApp,\n name: T\n): Provider {\n const heartbeatController = (app as FirebaseAppImpl).container\n .getProvider('heartbeat')\n .getImmediate({ optional: true });\n if (heartbeatController) {\n void heartbeatController.triggerHeartbeat();\n }\n return (app as FirebaseAppImpl).container.getProvider(name);\n}\n\n/**\n *\n * @param app - FirebaseApp instance\n * @param name - service name\n * @param instanceIdentifier - service instance identifier in case the service supports multiple instances\n *\n * @internal\n */\nexport function _removeServiceInstance(\n app: FirebaseApp,\n name: T,\n instanceIdentifier: string = DEFAULT_ENTRY_NAME\n): void {\n _getProvider(app, name).clearInstance(instanceIdentifier);\n}\n\n/**\n *\n * @param obj - an object of type FirebaseApp or FirebaseOptions.\n *\n * @returns true if the provide object is of type FirebaseApp.\n *\n * @internal\n */\nexport function _isFirebaseApp(\n obj: FirebaseApp | FirebaseOptions\n): obj is FirebaseApp {\n return (obj as FirebaseApp).options !== undefined;\n}\n\n/**\n *\n * @param obj - an object of type FirebaseApp.\n *\n * @returns true if the provided object is of type FirebaseServerAppImpl.\n *\n * @internal\n */\nexport function _isFirebaseServerApp(\n obj: FirebaseApp | FirebaseServerApp\n): obj is FirebaseServerApp {\n return (obj as FirebaseServerApp).settings !== undefined;\n}\n\n/**\n * Test only\n *\n * @internal\n */\nexport function _clearComponents(): void {\n _components.clear();\n}\n\n/**\n * Exported in order to be used in app-compat package\n */\nexport { DEFAULT_ENTRY_NAME as _DEFAULT_ENTRY_NAME };\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { ErrorFactory, ErrorMap } from '@firebase/util';\n\nexport const enum AppError {\n NO_APP = 'no-app',\n BAD_APP_NAME = 'bad-app-name',\n DUPLICATE_APP = 'duplicate-app',\n APP_DELETED = 'app-deleted',\n SERVER_APP_DELETED = 'server-app-deleted',\n NO_OPTIONS = 'no-options',\n INVALID_APP_ARGUMENT = 'invalid-app-argument',\n INVALID_LOG_ARGUMENT = 'invalid-log-argument',\n IDB_OPEN = 'idb-open',\n IDB_GET = 'idb-get',\n IDB_WRITE = 'idb-set',\n IDB_DELETE = 'idb-delete',\n FINALIZATION_REGISTRY_NOT_SUPPORTED = 'finalization-registry-not-supported',\n INVALID_SERVER_APP_ENVIRONMENT = 'invalid-server-app-environment'\n}\n\nconst ERRORS: ErrorMap = {\n [AppError.NO_APP]:\n \"No Firebase App '{$appName}' has been created - \" +\n 'call initializeApp() first',\n [AppError.BAD_APP_NAME]: \"Illegal App name: '{$appName}'\",\n [AppError.DUPLICATE_APP]:\n \"Firebase App named '{$appName}' already exists with different options or config\",\n [AppError.APP_DELETED]: \"Firebase App named '{$appName}' already deleted\",\n [AppError.SERVER_APP_DELETED]: 'Firebase Server App has been deleted',\n [AppError.NO_OPTIONS]:\n 'Need to provide options, when not being deployed to hosting via source.',\n [AppError.INVALID_APP_ARGUMENT]:\n 'firebase.{$appName}() takes either no argument or a ' +\n 'Firebase App instance.',\n [AppError.INVALID_LOG_ARGUMENT]:\n 'First argument to `onLog` must be null or a function.',\n [AppError.IDB_OPEN]:\n 'Error thrown when opening IndexedDB. Original error: {$originalErrorMessage}.',\n [AppError.IDB_GET]:\n 'Error thrown when reading from IndexedDB. Original error: {$originalErrorMessage}.',\n [AppError.IDB_WRITE]:\n 'Error thrown when writing to IndexedDB. Original error: {$originalErrorMessage}.',\n [AppError.IDB_DELETE]:\n 'Error thrown when deleting from IndexedDB. Original error: {$originalErrorMessage}.',\n [AppError.FINALIZATION_REGISTRY_NOT_SUPPORTED]:\n 'FirebaseServerApp deleteOnDeref field defined but the JS runtime does not support FinalizationRegistry.',\n [AppError.INVALID_SERVER_APP_ENVIRONMENT]:\n 'FirebaseServerApp is not for use in browser environments.'\n};\n\ninterface ErrorParams {\n [AppError.NO_APP]: { appName: string };\n [AppError.BAD_APP_NAME]: { appName: string };\n [AppError.DUPLICATE_APP]: { appName: string };\n [AppError.APP_DELETED]: { appName: string };\n [AppError.INVALID_APP_ARGUMENT]: { appName: string };\n [AppError.IDB_OPEN]: { originalErrorMessage?: string };\n [AppError.IDB_GET]: { originalErrorMessage?: string };\n [AppError.IDB_WRITE]: { originalErrorMessage?: string };\n [AppError.IDB_DELETE]: { originalErrorMessage?: string };\n [AppError.FINALIZATION_REGISTRY_NOT_SUPPORTED]: { appName?: string };\n}\n\nexport const ERROR_FACTORY = new ErrorFactory(\n 'app',\n 'Firebase',\n ERRORS\n);\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n FirebaseApp,\n FirebaseOptions,\n FirebaseAppSettings\n} from './public-types';\nimport {\n ComponentContainer,\n Component,\n ComponentType\n} from '@firebase/component';\nimport { ERROR_FACTORY, AppError } from './errors';\n\nexport class FirebaseAppImpl implements FirebaseApp {\n protected readonly _options: FirebaseOptions;\n protected readonly _name: string;\n /**\n * Original config values passed in as a constructor parameter.\n * It is only used to compare with another config object to support idempotent initializeApp().\n *\n * Updating automaticDataCollectionEnabled on the App instance will not change its value in _config.\n */\n private readonly _config: Required;\n private _automaticDataCollectionEnabled: boolean;\n protected _isDeleted = false;\n private readonly _container: ComponentContainer;\n\n constructor(\n options: FirebaseOptions,\n config: Required,\n container: ComponentContainer\n ) {\n this._options = { ...options };\n this._config = { ...config };\n this._name = config.name;\n this._automaticDataCollectionEnabled =\n config.automaticDataCollectionEnabled;\n this._container = container;\n this.container.addComponent(\n new Component('app', () => this, ComponentType.PUBLIC)\n );\n }\n\n get automaticDataCollectionEnabled(): boolean {\n this.checkDestroyed();\n return this._automaticDataCollectionEnabled;\n }\n\n set automaticDataCollectionEnabled(val: boolean) {\n this.checkDestroyed();\n this._automaticDataCollectionEnabled = val;\n }\n\n get name(): string {\n this.checkDestroyed();\n return this._name;\n }\n\n get options(): FirebaseOptions {\n this.checkDestroyed();\n return this._options;\n }\n\n get config(): Required {\n this.checkDestroyed();\n return this._config;\n }\n\n get container(): ComponentContainer {\n return this._container;\n }\n\n get isDeleted(): boolean {\n return this._isDeleted;\n }\n\n set isDeleted(val: boolean) {\n this._isDeleted = val;\n }\n\n /**\n * This function will throw an Error if the App has already been deleted -\n * use before performing API actions on the App.\n */\n protected checkDestroyed(): void {\n if (this.isDeleted) {\n throw ERROR_FACTORY.create(AppError.APP_DELETED, { appName: this._name });\n }\n }\n}\n","/**\n * @license\n * Copyright 2023 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n FirebaseAppSettings,\n FirebaseServerApp,\n FirebaseServerAppSettings,\n FirebaseOptions\n} from './public-types';\nimport { deleteApp, registerVersion } from './api';\nimport { ComponentContainer } from '@firebase/component';\nimport { FirebaseAppImpl } from './firebaseApp';\nimport { ERROR_FACTORY, AppError } from './errors';\nimport { name as packageName, version } from '../package.json';\n\nexport class FirebaseServerAppImpl\n extends FirebaseAppImpl\n implements FirebaseServerApp\n{\n private readonly _serverConfig: FirebaseServerAppSettings;\n private _finalizationRegistry: FinalizationRegistry