mirror of
https://github.com/nilaoda/BBDown.git
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484 lines
21 KiB
C#
484 lines
21 KiB
C#
using BBDown.Core.Protobuf;
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using Google.Protobuf;
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using System.Text;
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using static BBDown.Core.Entity.Entity;
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using static BBDown.Core.Util.HTTPUtil;
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using System.Text.RegularExpressions;
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using System.Text.Json;
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namespace BBDown.Core.Util;
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public static partial class SubUtil
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{
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//https://i0.hdslb.com/bfs/subtitle/subtitle_lan.json
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public static (string, string) GetSubtitleCode(string key)
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{
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//zh-hans => zh-Hans
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if (NonCapsRegex().Match(key) is { Success: true } result)
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{
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var v = result.Value;
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key = key.Replace(v, v.ToUpper());
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}
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return key switch
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{
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"ai-Zh" => ("chi", "中文（简体, AI识别）"),
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"ai-En" => ("eng", "English(generated by ai)"),
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"zh-CN" => ("chi", "中文（简体）"),
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"zh-HK" => ("chi", "中文（香港繁體）"),
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"zh-Hans" => ("chi", "中文（简体）"),
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"zh-TW" => ("chi", "中文（台灣繁體）"),
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"zh-Hant" => ("chi", "中文（繁體）"),
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"en-US" => ("eng", "English(USA)"),
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"ja" => ("jpn", "日本語"),
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"ko" => ("kor", "한국어"),
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"zh-SG" => ("chi", "中文（新加坡）"),
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"ab" => ("abk", "Аҳәынҭқарра"),
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"aa" => ("aar", "Qafár af"),
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"af" => ("afr", "Afrikaans"),
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"sq" => ("alb", "Gjuha shqipe"),
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"ase" => ("ase", "American Sign Language"),
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"am" => ("amh", "አማርኛ"),
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"arc" => ("arc", "ܐܪܡܝܐ"),
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"hy" => ("arm", "հայերեն"),
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"as" => ("asm", "অসমীয়া"),
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"ay" => ("aym", "Aymar aru"),
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"az" => ("aze", "Azərbaycan"),
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"bn" => ("ben", "বাংলা ভাষার"),
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"ba" => ("bak", "Башҡорттеле"),
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"eu" => ("baq", "Euskara"),
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"be" => ("bel", "беларуская мова biełaruskaja mova"),
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"bh" => ("bih", "Bihar"),
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"bi" => ("bis", "Bislama"),
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"bs" => ("bos", "босански"),
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"br" => ("bre", "Breton"),
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"bg" => ("bul", "български"),
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"yue" => ("chi", "粵語"),
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"yue-HK" => ("chi", "粵語（中國香港）"),
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"ca" => ("cat", "català"),
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"chr" => ("chr", "ᏣᎳᎩ ᎦᏬᏂᎯᏍᏗ"),
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"cho" => ("cho", "Chahta'"),
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"co" => ("cos", "lingua corsa"),
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"hr" => ("hrv", "Hrvatska"),
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"cs" => ("cze", "čeština"),
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"da" => ("dan", "Dansk"),
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"nl" => ("dut", "Nederlands"),
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"nl-BE" => ("dut", "Nederlands(Belgisch)"),
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"nl-NL" => ("dut", "Nederlands(Nederlands)"),
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"dz" => ("dzo", "རྫོང་ཁ།"),
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"en" => ("eng", "English"),
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"en-CA" => ("eng", "English(Canada)"),
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"en-IE" => ("eng", "English(Ireland)"),
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"en-GB" => ("eng", "English(UK)"),
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"eo" => ("epo", "Esperanto"),
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"et" => ("est", "Eestlane"),
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"fo" => ("fao", "føroyskt"),
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"fj" => ("fij", "Vakaviti"),
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"fil" => ("phi", "Pilipino"),
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"fi" => ("fin", "Suomi"),
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"fr" => ("fre", "Français"),
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"fr-BE" => ("fre", "Français(Belgique)"),
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"fr-CA" => ("fre", "Français(Canada)"),
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"fr-FR" => ("fre", "Français(La France)"),
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"fr-CH" => ("fre", "Français(Suisse)"),
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"ff" => ("ful", "Fulani"),
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"gl" => ("glg", "galego"),
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"ka" => ("geo", "ქართული ენა"),
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"de" => ("ger", "Deutsch"),
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"de-AT" => ("ger", "Deutsch(Österreich)"),
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"de-DE" => ("ger", "Deutsch(Deutschland)"),
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"de-CH" => ("ger", "Deutsch(Schweiz)"),
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"el" => ("gre", "Ελληνικά"),
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"kl" => ("kal", "Kalaallisut"),
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"gn" => ("grn", "avañe'ẽ"),
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"gu" => ("guj", "ગુજરાતી"),
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"hak" => ("hak", "Hak-kâ-fa"),
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"hak-TW" => ("hak", "Hak-kâ-fa"),
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"ha" => ("hau", "هَوُسَ"),
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"iw" => ("heb", "שפה עברית"),
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"hi" => ("hin", "हिन्दी"),
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"hi-Latn" => ("hin", "हिंदी(फोनेटिक)"),
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"hu" => ("hun", "Magyar"),
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"is" => ("ice", "icelandic"),
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"ig" => ("ibo", "Asụsụ Igbo"),
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"id" => ("ind", "Indonesia"),
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"ia" => ("ina", "Interlingua"),
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"iu" => ("iku", "ᐃᓄᒃᑎᑐᑦ"),
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"ik" => ("ipk", "Inupiat"),
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"ga" => ("gle", "Gaeilge na hÉireann"),
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"it" => ("ita", "Italiano"),
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"jv" => ("jav", "ꦧꦱꦗꦮ"),
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"kn" => ("kan", "ಕನ್ನಡ"),
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"ks" => ("kas", "कॉशुर"),
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"kk" => ("kaz", "Қазақ тілі"),
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"km" => ("khm", "ភាសាខ្មែរ"),
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"rw" => ("kin", "Ikinyarwanda"),
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"tlh" => ("tlh", "tlhIngan Hol"),
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"ku" => ("kur", "Kurdî"),
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"ky" => ("kir", "кыргыз тили"),
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"lo" => ("lao", "ພາສາລາວ"),
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"la" => ("lat", "latīna"),
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"lv" => ("lav", "latviešu valoda"),
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"ln" => ("lin", "Lingála"),
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"lt" => ("lit", "lietuvių kalba"),
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"lb" => ("ltz", "Lëtzebuergesch"),
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"mk" => ("mac", "Македонски јазик"),
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"mg" => ("mlg", "maa.laa.gaas"),
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"ms" => ("may", "Melayu"),
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"ml" => ("mal", "മലയാളം"),
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"mt" => ("mlt", "Lingwa Maltija"),
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"mi" => ("mao", "Māori"),
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"mr" => ("mar", "मराठी Marāṭhī"),
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"mas" => ("mas", "Maasai"),
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"nan" => ("nan", "閩南語"),
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"nan-TW" => ("nan", "閩南語(台灣)"),
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"lus" => ("lus", "Mizo ṭawng"),
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"mo" => ("mol", "Limba moldovenească"),
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"mn" => ("mon", "монгол хэл"),
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"my" => ("bur", "မြန်မာဘာသာ"),
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"na" => ("nau", "Dorerin Naoero"),
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"nv" => ("nav", "Diné bizaad"),
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"ne" => ("nep", "नेपाली Nepālī"),
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"no" => ("nor", "norsk språk"),
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"fa" => ("per", "فارسی"),
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"fa-AF" => ("per", "فارسی"),
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"fa-IR" => ("per", "فارسی"),
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"pl" => ("pol", "Polski"),
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"pt" => ("por", "Português"),
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"pt-BR" => ("por", "Português(brasil)"),
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"pt-PT" => ("por", "Português(portugal)"),
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"ro" => ("rum", "Română"),
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"ru" => ("rus", "Русский"),
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"ru-Latn" => ("rus", "Русский(фонетический)"),
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"sr" => ("srp", "Српски"),
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"sr-Cyrl" => ("srp", "Српски(ћирилица)"),
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"sr-Latn" => ("srp", "Српски(латиница)"),
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"sh" => ("scr", "srpskohrvatski"),
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"sk" => ("slo", "slovenský"),
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"es" => ("spa", "Español"),
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"es-419" => ("spa", "Español(Latinoamérica)"),
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"es-MX" => ("spa", "Español(México)"),
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"es-ES" => ("spa", "Español(España)"),
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"es-US" => ("spa", "Español(Estados Unidos)"),
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"sv" => ("swe", "Svenska"),
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"tl" => ("tgl", "Tagalog"),
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"th" => ("tha", "ไทย"),
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"tr" => ("tur", "Türkçe"),
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"uk" => ("ukr", "Українська"),
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"ur" => ("urd", "Urdu"),
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"vi" => ("vie", "Tiếng Việt"),
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//太多了，我蚌埠住了，后面懒得查
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//"ie" => ("", ""),
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//"oc" => ("", ""),
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//"or" => ("", ""),
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//"om" => ("", ""),
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//"ps" => ("", ""),
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//"pa" => ("", ""),
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//"qu" => ("", ""),
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//"rm" => ("", ""),
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//"rn" => ("", ""),
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//"sm" => ("", ""),
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//"sg" => ("", ""),
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//"sa" => ("", ""),
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//"gd" => ("", ""),
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//"sdp" => ("", ""),
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//"sn" => ("", ""),
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//"scn" => ("", ""),
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//"sd" => ("", ""),
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//"si" => ("", ""),
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//"sl" => ("", ""),
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//"so" => ("", ""),
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//"st" => ("", ""),
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//"su" => ("", ""),
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//"sw" => ("", ""),
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//"ss" => ("", ""),
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//"tg" => ("", ""),
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//"ta" => ("", ""),
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//"tt" => ("", ""),
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//"te" => ("", ""),
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//"ti" => ("", ""),
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//"to" => ("", ""),
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//"ts" => ("", ""),
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//"tn" => ("", ""),
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//"tk" => ("", ""),
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//"tw" => ("", ""),
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//"uz" => ("", ""),
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//"vo" => ("", ""),
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//"cy" => ("", ""),
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//"fy" => ("", ""),
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//"wo" => ("", ""),
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//"xh" => ("", ""),
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//"yi" => ("", ""),
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//"yo" => ("", ""),
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//"zu" => ("", ""),
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_ => ("und", "Undetermined")
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};
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}
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#region 字幕接口
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private static async Task<List<Subtitle>?> GetIntlSubtitlesFromApi1Async(string aid, string cid, string epId, int index)
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{
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try
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{
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List<Subtitle> subtitles = new();
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string api = "https://" + (Config.EPHOST == "api.bilibili.com" ? "api.biliintl.com" : Config.EPHOST) + $"/intl/gateway/web/v2/subtitle?episode_id={epId}";
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string json = await GetWebSourceAsync(api);
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using var infoJson = JsonDocument.Parse(json);
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var subs = infoJson.RootElement.GetProperty("data").GetProperty("subtitles").EnumerateArray();
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foreach (var sub in subs)
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{
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var lan = sub.GetProperty("lang_key").ToString();
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var url = sub.GetProperty("url").ToString();
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Subtitle subtitle = new()
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{
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url = url,
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lan = lan,
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path = $"{aid}/{aid}.{cid}.{lan}{(url.Contains(".json") ? ".srt" : ".ass")}"
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};
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//有空的URL 不合法
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if (subtitles.Any(s => string.IsNullOrEmpty(s.url)))
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throw new Exception("Bad url");
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subtitles.Add(subtitle);
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}
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return subtitles;
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}
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catch (Exception)
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{
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return null;
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}
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}
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private static async Task<List<Subtitle>?> GetIntlSubtitlesFromApi2Async(string aid, string cid, string epId, int index)
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{
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try
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{
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List<Subtitle> subtitles = new();
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string api = "https://" + (Config.HOST == "api.bilibili.com" ? "api.bilibili.tv" : Config.HOST) +
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$"/intl/gateway/v2/ogv/view/app/season?ep_id={epId}&platform=android&s_locale=zh_SG" + (Config.TOKEN != "" ? $"&access_key={Config.TOKEN}" : "");
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string json = await GetWebSourceAsync(api);
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using var infoJson = JsonDocument.Parse(json);
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var subs = infoJson.RootElement.GetProperty("result").GetProperty("modules")[0].GetProperty("data")
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.GetProperty("episodes")[index - 1].GetProperty("subtitles").EnumerateArray();
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foreach (var sub in subs)
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{
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var lan = sub.GetProperty("key").ToString();
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var url = sub.GetProperty("url").ToString().Replace("\\\\/", "/");
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Subtitle subtitle = new()
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{
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url = url,
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lan = lan,
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path = $"{aid}/{aid}.{cid}.{lan}{(url.Contains(".json") ? ".srt" : ".ass")}"
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};
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//有空的URL 不合法
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if (subtitles.Any(s => string.IsNullOrEmpty(s.url)))
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throw new Exception("Bad url");
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subtitles.Add(subtitle);
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}
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return subtitles;
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}
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catch (Exception)
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{
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return null;
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}
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}
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private static async Task<List<Subtitle>?> GetSubtitlesFromApi1Async(string aid, string cid, string epId, int index)
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{
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try
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{
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List<Subtitle> subtitles = new();
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string api = $"https://api.bilibili.com/x/web-interface/view?aid={aid}&cid={cid}";
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string json = await GetWebSourceAsync(api);
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using var infoJson = JsonDocument.Parse(json);
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var subs = infoJson.RootElement.GetProperty("data").GetProperty("subtitle").GetProperty("list").EnumerateArray();
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foreach (var sub in subs)
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{
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var lan = sub.GetProperty("lan").ToString();
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Subtitle subtitle = new()
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{
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url = sub.GetProperty("subtitle_url").ToString(),
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lan = lan,
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path = $"{aid}/{aid}.{cid}.{lan}.srt"
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};
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subtitles.Add(subtitle);
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}
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//有空的URL 不合法
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if (subtitles.Any(s => string.IsNullOrEmpty(s.url)))
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throw new Exception("Bad url");
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//无字幕片源 但是字幕没上导致的空列表，尝试从国际接口获取
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//if (subtitles.Count == 0 && !string.IsNullOrEmpty(epId))
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//{
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// return await GetSubtitlesAsync(aid, cid, epId, true);
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//}
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return subtitles;
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}
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catch (Exception)
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{
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return null;
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}
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}
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private static async Task<List<Subtitle>?> GetSubtitlesFromApi2Async(string aid, string cid, string epId, int index)
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{
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try
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{
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List<Subtitle> subtitles = new();
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string api = $"https://api.bilibili.com/x/player/wbi/v2?cid={cid}&aid={aid}";
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string json = await GetWebSourceAsync(api);
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using var infoJson = JsonDocument.Parse(json);
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var subs = infoJson.RootElement.GetProperty("data").GetProperty("subtitle").GetProperty("subtitles").EnumerateArray();
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foreach (var sub in subs)
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{
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var lan = sub.GetProperty("lan").ToString();
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Subtitle subtitle = new()
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{
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url = sub.GetProperty("subtitle_url").ToString(),
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lan = lan,
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path = $"{aid}/{aid}.{cid}.{lan}.srt"
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};
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subtitles.Add(subtitle);
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}
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//有空的URL 不合法
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if (subtitles.Any(s => string.IsNullOrEmpty(s.url)))
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throw new Exception("Bad url");
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return subtitles;
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}
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catch (Exception)
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{
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return null;
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}
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}
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private static byte[] GetPayload(long aid, long cid)
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{
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var obj = new DmViewReq
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{
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Pid = aid,
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Oid = cid,
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Type = 1,
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Spmid = "main.ugc-video-detail.0.0",
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};
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return AppHelper.PackMessage(obj.ToByteArray());
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}
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private static async Task<List<Subtitle>?> GetSubtitlesFromApi3Async(string aid, string cid, string epId, int index)
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{
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try
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{
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List<Subtitle> subtitles = new();
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//grpc调用接口 protobuf
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string api = "https://app.biliapi.net/bilibili.community.service.dm.v1.DM/DmView";
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var data = GetPayload(Convert.ToInt64(aid), Convert.ToInt64(cid));
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var t = AppHelper.ReadMessage(await GetPostResponseAsync(api, data));
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var resp = new MessageParser<DmViewReply>(() => new DmViewReply()).ParseFrom(t);
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if (resp.Subtitle != null && resp.Subtitle.Subtitles != null)
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{
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subtitles.AddRange(resp.Subtitle.Subtitles.Select(item => new Subtitle() {
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url = item.SubtitleUrl,
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lan = item.Lan,
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path = $"{aid}/{aid}.{cid}.{item.Lan}.srt"
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}));
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}
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//有空的URL 不合法
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if (subtitles.Any(s => string.IsNullOrEmpty(s.url)))
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throw new Exception("Bad url");
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return subtitles;
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}
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catch (Exception)
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{
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return null;
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}
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}
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#endregion
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public static async Task<List<Subtitle>> GetSubtitlesAsync(string aid, string cid, string epId, int index, bool intl)
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{
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List<Subtitle>? subtitles = new();
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if (intl)
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{
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subtitles = await GetIntlSubtitlesFromApi1Async(aid, cid, epId, index) ?? await GetIntlSubtitlesFromApi2Async(aid, cid, epId, index);
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}
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else
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{
|
|
if (Config.COOKIE == "")
|
|
{
|
|
subtitles = await GetSubtitlesFromApi3Async(aid, cid, epId, index); // 未登录只有APP可以拿到字幕了
|
|
}
|
|
else
|
|
{
|
|
subtitles = await GetSubtitlesFromApi2Async(aid, cid, epId, index)
|
|
?? await GetSubtitlesFromApi1Async(aid, cid, epId, index)
|
|
?? await GetSubtitlesFromApi3Async(aid, cid, epId, index);
|
|
}
|
|
|
|
}
|
|
|
|
if (subtitles == null)
|
|
{
|
|
return new List<Subtitle>(); //返回空列表
|
|
}
|
|
|
|
//修正 url 协议
|
|
foreach (var item in subtitles)
|
|
{
|
|
if (item.url.StartsWith("//")) item.url = "https:" + item.url;
|
|
}
|
|
|
|
return subtitles;
|
|
}
|
|
|
|
public static async Task SaveSubtitleAsync(string url, string path)
|
|
{
|
|
if (path.EndsWith(".srt"))
|
|
await File.WriteAllTextAsync(path, ConvertSubFromJson(await GetWebSourceAsync(url)), Encoding.UTF8);
|
|
else
|
|
await File.WriteAllTextAsync(path, await GetWebSourceAsync(url), Encoding.UTF8);
|
|
}
|
|
|
|
private static string ConvertSubFromJson(string jsonString)
|
|
{
|
|
StringBuilder lines = new();
|
|
var json = JsonDocument.Parse(jsonString);
|
|
var sub = json.RootElement.GetProperty("body").EnumerateArray().ToList();
|
|
for(int i = 0; i < sub.Count; i++)
|
|
{
|
|
var line = sub[i];
|
|
lines.AppendLine((i + 1).ToString());
|
|
if (line.TryGetProperty("from", out JsonElement from))
|
|
{
|
|
lines.AppendLine($"{FormatTime(from.GetDouble())} --> {FormatTime(line.GetProperty("to").GetDouble())}");
|
|
}
|
|
else
|
|
{
|
|
lines.AppendLine($"{FormatTime(0.0)} --> {FormatTime(line.GetProperty("to").GetDouble())}");
|
|
}
|
|
//有的没有内容
|
|
if (line.TryGetProperty("content", out JsonElement content))
|
|
lines.AppendLine(content.ToString());
|
|
lines.AppendLine();
|
|
}
|
|
return lines.ToString();
|
|
}
|
|
|
|
private static string FormatTime(double sec) //64.13
|
|
{
|
|
return TimeSpan.FromSeconds(sec).ToString(@"hh\:mm\:ss\,fff");
|
|
}
|
|
|
|
[GeneratedRegex("-[a-z]")]
|
|
private static partial Regex NonCapsRegex();
|
|
} |