fzu/Get_Danmaku.py

import time
import re
import requests

headers = {
    "User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36 Edg/128.0.0.0",
    "Cookie":"buvid4=D16319A3-9CCF-7099-A512-0A135AD5785B47915-023052812-b1nz50QSFWB5YJLoC8St7Q%3D%3D; buvid_fp_plain=undefined; enable_web_push=DISABLE; header_theme_version=CLOSE; DedeUserID=5493983; DedeUserID__ckMd5=5158623efb606499; CURRENT_FNVAL=16; blackside_state=0; CURRENT_BLACKGAP=0; FEED_LIVE_VERSION=V_WATCHLATER_PIP_WINDOW3; _uuid=65D18E104-D381-1D7B-4191-BB14FBF71016F05662infoc; CURRENT_QUALITY=116; buvid3=5C4356FC-CED4-B797-D0E9-0D465C57237867779infoc; b_nut=1723395567; rpdid=|(u)~Ju~J|kl0J'u~kJJml~u); LIVE_BUVID=AUTO8217257278253243; home_feed_column=5; bili_ticket=eyJhbGciOiJIUzI1NiIsImtpZCI6InMwMyIsInR5cCI6IkpXVCJ9.eyJleHAiOjE3MjY2NzExOTIsImlhdCI6MTcyNjQxMTkzMiwicGx0IjotMX0.HL4benw1AXqZyCPuhdJ0gWt_ntTJ11SaspK8rVkM4Nw; bili_ticket_expires=1726671132; SESSDATA=62b3d1f9%2C1741976682%2C01ac3%2A92CjBKLlT2PXjk2hmj_l4GXirVUtBEUJu-ii7ymQtB_b7urFREHxDukjCy1zRg6t4Fq_USVld0eW1pNGtoZ2prQWRCRUg3aTZZTzRUUE1wc1M2VkpGZDhTZzY3OHhwZ3BGTEQ4am9tOTJLMlUtZUduS2lCMjhpZS1HQU1laGRReUpoQ3VwdWdYS3FBIIEC; bili_jct=f1753715b455ce2db99ec05354cf2c00; fingerprint=262de2a503b05140a20bda05841f9755; buvid_fp=262de2a503b05140a20bda05841f9755; PVID=2; browser_resolution=2040-1026; bp_t_offset_5493983=978040246019031040; b_lsid=62D18E35_19203235E8B; sid=86fq5dr0",
    "Referer":"https://search.bilibili.com/all?keyword=2024%E5%B7%B4%E9%BB%8E%E5%A5%A5%E8%BF%90%E4%BC%9A&from_source=webtop_search&spm_id_from=333.1007&search_source=3"
}

def has_duplicates(lst):  #判断列表中是否有重复元素
    return len(lst) != len(set(lst))

def get_videos_cid(max_videos=300):  #获取视频BV号
    bv_list = []
    c_list = []
    i = 1
    while len(bv_list) < max_videos:
        url = f"https://search.bilibili.com/all?vt=45910958&keyword=2024%E5%B7%B4%E9%BB%8E%E5%A5%A5%E8%BF%90%E4%BC%9A&from_source=webtop_search&spm_id_from=333.788&search_source=3&page={i}"

        #为了防止被拦截，打个瞌睡
        time.sleep(2)
        resp = requests.get(url, headers=headers)
        resp.encoding = "utf-8"

        #错误判断
        if resp.status_code != 200:
            print(f"第{i}页视频请求失败，状态码: {resp.status_code}")
        else:
            i += 1
            bv_id_re = r'BV\w+'
            single_page_bv_ids = re.findall(bv_id_re, resp.text)
            single_page_bv_ids = list(set(single_page_bv_ids))

            #提取每页视频的BV号
            for bv_ids in single_page_bv_ids:
                if len(bv_list) >= max_videos:
                    break
                bv_list.append(bv_ids)
                bv_list = list(set(bv_list))

    for bv_ids in bv_list:
        resp1 = requests.get(f"https://api.bilibili.com/x/player/pagelist?bvid={bv_ids}",headers=headers)
        resp1.encoding = "utf-8"

        if resp1.status_code == 200:
            c_id_re = r'"cid"\s*:\s*(\d+)'
            single_page_c_ids = re.findall(c_id_re, resp1.text)
            single_page_c_ids = list(set(single_page_c_ids))

            #提取每个BV号对应的cid（由于某些视频有分p，导致有多个cid，所以这里需要遍历）
            for c_ids in single_page_c_ids:
                if len(c_list) >= max_videos:
                    break
                c_list.append(c_ids)
                c_list = list(set(c_list))

    print(f"最终cid列表: {c_list}")
    print(f"最终cid数量: {len(c_list)}")
    if has_duplicates(c_list):
        print("列表中有重复cid！")
    else:
        print("列表中没有重复cid！")
    return (c_list)

def get_danmu(c_list):  #通过cid获取视频弹幕
    danmu_list = []

    for c_ids in c_list:
        url = f"https://comment.bilibili.com/{c_ids}.xml"
        resp = requests.get(url, headers=headers)
        resp.encoding = "utf-8"

        #错误判断
        if resp.status_code != 200:
            print(f"cid为{c_ids}的视频获取弹幕失败，状态码: {resp.status_code}")
        else:
            danmu_re = r'<d[^>]*>(.*?)</d>'
            single_video_danmus = re.findall(danmu_re, resp.text)
            single_video_danmus = list(single_video_danmus)
            danmu_list.extend(single_video_danmus)
            print(f"cid为{c_ids}的视频获取弹幕成功！")

    return danmu_list

c_list = get_videos_cid()
danmu_list = get_danmu(c_list)

#写入文件
with open('danmu.txt', 'w', encoding="utf-8") as f:
    for dm in danmu_list:
        f.write(str(dm) + "\n")