B站国际版简中字幕下载

BiliIntlSubDownloader.py

# -*- encoding: utf-8 -*-
# python3.6

import json
import os

import requests

th_api = "https://api.biliintl.com"
BangumiInfoUrl = th_api + "/intl/gateway/web/view/ogv_collection"
SubInfoUrl = th_api + "/intl/gateway/v2/app/subtitle"
th_api_proxy = "https://api.global.bilibili.com" # 可用漫游代理https://github.com/yujincheng08/BiliRoaming/wiki/
BangumiInfoUrl_proxy = th_api_proxy + "/intl/gateway/v2/ogv/view/app/season"


def download(url, path):
    r = requests.get(url, stream=True)
    r.raise_for_status()
    f = open(path, "wb")
    for chunk in r.iter_content(chunk_size=1024):
        if chunk:
            f.write(chunk)
    f.close()


def getBangumiInfo(season_id):
    r = requests.get(
        BangumiInfoUrl,
        params={"season_id": int(season_id), "s_locale": "zh_Hans"},
    ).json()
    if r["code"] == 0:
        return r["data"]["episodes"]
    else:
        raise Exception(f'Warn: getBangumiInfo for {season_id} message:{r["message"]}')


def getSubUrl(ep_id):
    r = requests.get(
        SubInfoUrl,
        params={"ep_id": int(ep_id), "s_locale": "zh_Hans"},
    ).json()
    if r["code"] == 0:
        if r["data"]["suggest_key"] == "zh-Hans":
            return r["data"]["subtitles"][0]["url"]
        else:
            raise Exception(f"Warn: getSubUrl for {ep_id} message:无中文简体字幕")
    else:
        raise Exception(f'Warn: getSubUrl for {ep_id} message:{r["message"]}')


def printBangumiInfo(episodesData):
    for (ord, episode) in enumerate(episodesData, start=1):
        print(
            f"{ord:<3} 剧集id：{episode['ep_id']},剧集名：{episode['title']} {episode['long_title']}"
        )


def downloadSub(season_id):
    episodesData = getBangumiInfo(season_id=season_id)
    printBangumiInfo(episodesData)
    ep_ord = int(input("请输入需要下载的剧集对应的序号：")) - 1
    ep = episodesData[ep_ord]
    url = getSubUrl(ep["ep_id"])
    path = f"{ep['title']} {ep['long_title']}.json"
    download(url, path)
    return path


def getBangumiInfo_proxy(season_id):
    r = requests.get(
        BangumiInfoUrl_proxy,
        params={
            "area": "th",
            "s_locale": "zh_SG",
            "access_key": "2021",
            "season_id": season_id,
            "mobi_app": "bstar_a",
            "build": "1080003",
        },
        headers={"http_x_from_biliroaming": "*"},
    )
    result = r.json()
    if result["code"] == 0:
        return result["result"]["modules"][0]["data"]["episodes"]
    else:
        raise Exception(
            f'Warn: getSubUrl_proxy for {season_id} message:{result["message"]}'
        )


def printBangumiInfo_proxy(episodesData):
    for (ord, episode) in enumerate(episodesData, start=1):
        sub_keys = ""
        for sub in episode["subtitles"]:
            sub_keys +=f"{sub['key']} "
        print(f"{ord:<3} 剧集id：{episode['id']},剧集名：{episode['long_title_display']},语言：{sub_keys.rstrip()}")


def downloadSub_proxy(season_id):
    episodesData = getBangumiInfo_proxy(season_id)
    printBangumiInfo_proxy(episodesData)
    ep_ord = int(input("请输入需要下载的剧集对应的序号：")) - 1
    ep = episodesData[ep_ord]
    for sub in ep["subtitles"]:
        if sub["key"] == "zh-Hans":
            url = sub["url"]
            path = f"{ep['long_title_display']}.json"
            download(url, path)
            return path
    sub_keys = ""
    for sub in ep["subtitles"]:
        sub_keys +=f"{sub['key']} "
    print(f"Warn: downloadSub_proxy for {season_id} message:无中文简体字幕,有以下语言：{sub_keys.rstrip()}")


# 以下代码来自https://github.com/y2361547758/bcc2ass/blob/master/bcc2ass.py
def sec2time(sec, type=""):
    h = int(sec) // 3600
    m = int(sec) // 60 % 60
    s = sec % 60
    f = int(sec * 1000) % 1000
    if type == "srt":
        return "%02d:%02d:%02d,%03d" % (h, m, int(s), f)
    elif type == "ass":
        return "%d:%02d:%02d.%02d" % (h, m, s, f // 10)
    elif type == "lrc":
        return "%02d:%02d.%02d" % (int(sec) // 60, s, f // 10)
    return "%02d:%02d:%02.2f" % (h, m, s)


def color2asscolor(color, alpha=0):
    return ("&H%02X" % alpha) + color[1:]


def bcc2ass(bcc_file, type):
    font_size_ratio = 50
    with open(bcc_file, encoding="utf-8") as f:
        bcc = json.load(f)
    output = f"{os.path.splitext(bcc_file)[0]}.{type}"
    with open(output, "w", encoding="utf-8") as f:
        count = 1
        if type == "ass":
            print("[V4+ Styles]", file=f)
            print(
                "Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding",
                file=f,
            )
            location = {1: 0, 2: 0, 3: 0, 4: 0, 5: 0, 6: 0, 7: 0, 8: 0, 9: 0}
            Alignment = 2
            for i in bcc["body"]:
                location[i["location"]] += 1
                if location[Alignment] < location[i["location"]]:
                    Alignment = i["location"]
            print(
                "Style: Default",
                "Arial",
                "%d" % (bcc["font_size"] * font_size_ratio),
                color2asscolor(bcc["font_color"]),
                "&H000000FF",
                color2asscolor(
                    bcc["background_color"], int(bcc["background_alpha"] * 0xFF)
                ),
                "&H00000000,0,0,0,0,100,100,0,0,1,2,2,%d,10,10,10,1" % Alignment,
                sep=",",
                file=f,
            )
            print(file=f)
            print("[Events]", file=f)
            print(
                "Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text",
                file=f,
            )

        for i in bcc["body"]:
            if type == "srt":
                print(count, file=f)
                print(
                    sec2time(i["from"], type) + " --> " + sec2time(i["to"], type),
                    file=f,
                )
                print(i["content"], file=f)
                print(file=f)
                count += 1
            elif type == "ass":
                align = "" if i["location"] == Alignment else "{\\a%d}" % i["location"]
                print(
                    "Dialogue: 0,"
                    + sec2time(i["from"], type)
                    + ","
                    + sec2time(i["to"], type)
                    + ",Default,,0,0,0,,"
                    + align
                    + i["content"].replace("\n", r"\N"),
                    file=f,
                )


if __name__ == "__main__":
    while True:
        try:
            # season_id = 1010919
            season_id = int(input("请输入番剧season_id："))
            # bcc_file = downloadSub(season_id)
            bcc_file = downloadSub_proxy(season_id)
            bcc2ass(bcc_file, "srt")
        except Exception as e:
            print(e)