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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| // | ||
| // VideoDanmuFilter.swift | ||
| // BilibiliLive | ||
| // | ||
| // Created by yicheng on 2024/12/13. | ||
| // | ||
|
|
||
| import UIKit | ||
|
|
||
| class VideoDanmuFilter { | ||
| static let shared = VideoDanmuFilter() | ||
|
|
||
| private var stringFilters = [String]() | ||
| private var regexFilters = [Regex<AnyRegexOutput>]() | ||
| private init() { | ||
| refreshCache(rules: VideoDanmuFilterStorage.filters) | ||
| } | ||
|
|
||
| func accept(_ danmu: String) -> Bool { | ||
| for filter in stringFilters { | ||
| if danmu.contains(filter) { | ||
| return false | ||
| } | ||
| } | ||
|
|
||
| for filter in regexFilters { | ||
| if danmu.contains(filter) { | ||
| return false | ||
| } | ||
| } | ||
| return true | ||
| } | ||
|
|
||
| func autoUpdate() { | ||
| if Date().timeIntervalSince(VideoDanmuFilterStorage.lastUpdate) > 60 * 60 * 24 { | ||
| Task { | ||
| await update() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| @discardableResult | ||
| func update() async -> String { | ||
| VideoDanmuFilterStorage.lastUpdate = Date() | ||
| let data = await WebRequest.requestDanmuFilterList() | ||
| let rules = data.rule.filter({ $0.type == 0 || $0.type == 1 }) | ||
| if !rules.isEmpty { | ||
| VideoDanmuFilterStorage.filters = rules | ||
| refreshCache(rules: rules) | ||
| } | ||
| return data.toast ?? "" | ||
| } | ||
|
|
||
| private func refreshCache(rules: [VideoDanmuFilterData.Rule]) { | ||
| stringFilters.removeAll() | ||
| regexFilters.removeAll() | ||
| rules.forEach { filter in | ||
| switch filter.type { | ||
| case 0: | ||
| stringFilters.append(filter.filter) | ||
| case 1: | ||
| if let regex = try? Regex(filter.filter) { | ||
| regexFilters.append(regex) | ||
| } | ||
| default: | ||
| break | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private enum VideoDanmuFilterStorage { | ||
| @UserDefaultCodable("VideoDanmuFilter.filters", defaultValue: []) | ||
| static var filters: [VideoDanmuFilterData.Rule] | ||
|
|
||
| @UserDefault("VideoDanmuFilter.lastUpdate", defaultValue: Date(timeIntervalSince1970: 0)) | ||
| static var lastUpdate: Date | ||
| } | ||
|
|
||
| private extension WebRequest.EndPoint { | ||
| static let danmuFilter = "https://api.bilibili.com/x/dm/filter/user" | ||
| } | ||
|
|
||
| private struct VideoDanmuFilterData: Codable { | ||
| struct Rule: Codable { | ||
| let filter: String | ||
| let type: Int | ||
| } | ||
|
|
||
| let rule: [Rule] | ||
| let toast: String? | ||
| } | ||
|
|
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| private extension WebRequest { | ||
| static func requestDanmuFilterList() async -> VideoDanmuFilterData { | ||
| do { | ||
| let resp: VideoDanmuFilterData = try await request(url: EndPoint.danmuFilter) | ||
| return resp | ||
| } catch let err { | ||
| return VideoDanmuFilterData(rule: [], toast: "\(err)") | ||
| } | ||
| } | ||
| } |
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