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Diffstat (limited to 'ext/bg/js/profile-conditions.js')
| -rw-r--r-- | ext/bg/js/profile-conditions.js | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/ext/bg/js/profile-conditions.js b/ext/bg/js/profile-conditions.js new file mode 100644 index 00000000..9f2f6b16 --- /dev/null +++ b/ext/bg/js/profile-conditions.js @@ -0,0 +1,276 @@ +/* + * Copyright (C) 2020 Yomichan Authors + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +/** + * Utility class to help processing profile conditions. + */ +class ProfileConditions { + /** + * Creates a new instance. + */ + constructor() { + this._splitPattern = /[,;\s]+/; + this._descriptors = new Map([ + [ + 'popupLevel', + { + operators: new Map([ + ['equal', this._createSchemaPopupLevelEqual.bind(this)], + ['notEqual', this._createSchemaPopupLevelNotEqual.bind(this)], + ['lessThan', this._createSchemaPopupLevelLessThan.bind(this)], + ['greaterThan', this._createSchemaPopupLevelGreaterThan.bind(this)], + ['lessThanOrEqual', this._createSchemaPopupLevelLessThanOrEqual.bind(this)], + ['greaterThanOrEqual', this._createSchemaPopupLevelGreaterThanOrEqual.bind(this)] + ]) + } + ], + [ + 'url', + { + operators: new Map([ + ['matchDomain', this._createSchemaUrlMatchDomain.bind(this)], + ['matchRegExp', this._createSchemaUrlMatchRegExp.bind(this)] + ]) + } + ], + [ + 'modifierKeys', + { + operators: new Map([ + ['are', this._createSchemaModifierKeysAre.bind(this)], + ['areNot', this._createSchemaModifierKeysAreNot.bind(this)], + ['include', this._createSchemaModifierKeysInclude.bind(this)], + ['notInclude', this._createSchemaModifierKeysNotInclude.bind(this)] + ]) + } + ] + ]); + } + + /** + * Creates a new JSON schema descriptor for the given set of condition groups. + * @param conditionGroups An array of condition groups in the following format: + * conditionGroups = [ + * { + * conditions: [ + * { + * type: (condition type: string), + * operator: (condition sub-type: string), + * value: (value to compare against: string) + * }, + * ... + * ] + * }, + * ... + * ] + */ + createSchema(conditionGroups) { + const anyOf = []; + for (const {conditions} of conditionGroups) { + const allOf = []; + for (const {type, operator, value} of conditions) { + const conditionDescriptor = this._descriptors.get(type); + if (typeof conditionDescriptor === 'undefined') { continue; } + + const createSchema = conditionDescriptor.operators.get(operator); + if (typeof createSchema === 'undefined') { continue; } + + const schema = createSchema(value); + allOf.push(schema); + } + switch (allOf.length) { + case 0: break; + case 1: anyOf.push(allOf[0]); break; + default: anyOf.push({allOf}); break; + } + } + switch (anyOf.length) { + case 0: return {}; + case 1: return anyOf[0]; + default: return {anyOf}; + } + } + + /** + * Creates a normalized version of the context object to test, + * assigning dependent fields as needed. + * @param context A context object which is used during schema validation. + * @returns A normalized context object. + */ + normalizeContext(context) { + const normalizedContext = Object.assign({}, context); + const {url} = normalizedContext; + if (typeof url === 'string') { + try { + normalizedContext.domain = new URL(url).hostname; + } catch (e) { + // NOP + } + } + return normalizedContext; + } + + // Private + + _split(value) { + return value.split(this._splitPattern); + } + + _stringToNumber(value) { + const number = Number.parseFloat(value); + return Number.isFinite(number) ? number : 0; + } + + // popupLevel schema creation functions + + _createSchemaPopupLevelEqual(value) { + value = this._stringToNumber(value); + return { + required: ['depth'], + properties: { + depth: {const: value} + } + }; + } + + _createSchemaPopupLevelNotEqual(value) { + return { + not: [this._createSchemaPopupLevelEqual(value)] + }; + } + + _createSchemaPopupLevelLessThan(value) { + value = this._stringToNumber(value); + return { + required: ['depth'], + properties: { + depth: {type: 'number', exclusiveMaximum: value} + } + }; + } + + _createSchemaPopupLevelGreaterThan(value) { + value = this._stringToNumber(value); + return { + required: ['depth'], + properties: { + depth: {type: 'number', exclusiveMinimum: value} + } + }; + } + + _createSchemaPopupLevelLessThanOrEqual(value) { + value = this._stringToNumber(value); + return { + required: ['depth'], + properties: { + depth: {type: 'number', maximum: value} + } + }; + } + + _createSchemaPopupLevelGreaterThanOrEqual(value) { + value = this._stringToNumber(value); + return { + required: ['depth'], + properties: { + depth: {type: 'number', minimum: value} + } + }; + } + + // url schema creation functions + + _createSchemaUrlMatchDomain(value) { + const oneOf = []; + for (let domain of this._split(value)) { + if (domain.length === 0) { continue; } + domain = domain.toLowerCase(); + oneOf.push({const: domain}); + } + return { + required: ['domain'], + properties: { + domain: {oneOf} + } + }; + } + + _createSchemaUrlMatchRegExp(value) { + return { + required: ['url'], + properties: { + url: {type: 'string', pattern: value, patternFlags: 'i'} + } + }; + } + + // modifierKeys schema creation functions + + _createSchemaModifierKeysAre(value) { + return this._createSchemaModifierKeysGeneric(value, true, false); + } + + _createSchemaModifierKeysAreNot(value) { + return { + not: [this._createSchemaModifierKeysGeneric(value, true, false)] + }; + } + + _createSchemaModifierKeysInclude(value) { + return this._createSchemaModifierKeysGeneric(value, false, false); + } + + _createSchemaModifierKeysNotInclude(value) { + return this._createSchemaModifierKeysGeneric(value, false, true); + } + + _createSchemaModifierKeysGeneric(value, exact, none) { + const containsList = []; + for (const modifierKey of this._split(value)) { + if (modifierKey.length === 0) { continue; } + containsList.push({ + contains: { + const: modifierKey + } + }); + } + const containsListCount = containsList.length; + const modifierKeysSchema = { + type: 'array' + }; + if (exact) { + modifierKeysSchema.maxItems = containsListCount; + } + if (none) { + if (containsListCount > 0) { + modifierKeysSchema.not = containsList; + } + } else { + modifierKeysSchema.minItems = containsListCount; + if (containsListCount > 0) { + modifierKeysSchema.allOf = containsList; + } + } + return { + required: ['modifierKeys'], + properties: { + modifierKeys: modifierKeysSchema + } + }; + } +} |