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daymade
9aab8d1208
Login-free fetch of comprehensive Bilibili (B站) video data in one view/detail call: title, UP follower count, tags, partition, per-part cids, live stats, and full danmaku text. Accepts BVID/av/b23.tv/URL. Ships bili-selftest.sh API-drift health-check and a WBI-signing API reference. All examples synthetic; NO-FABRICATION discipline.
51 lines
2.5 KiB
Bash
Executable File
51 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# bili-subs.sh — Download a Bilibili video's subtitle/transcript track. REQUIRES LOGIN.
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#
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# Important, verified 2026-06: Bilibili subtitles are gated behind login. The public
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# player API (player/wbi/v2) returns an EMPTY subtitle list for anonymous requests across
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# every video tested (new and old), and yt-dlp reports "Subtitles are only available when
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# logged in." There is NO login-free path — do not try to bypass it. So this script needs
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# the user's Bilibili session, supplied as browser cookies.
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#
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# Because it reads the user's logged-in session, ASK THE USER before running it.
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#
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# Usage:
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# bili-subs.sh <BVID | av | URL> [browser] # browser: chrome (default), firefox, safari, edge
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#
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# Output: subtitle file(s) written to the current directory as <id>.<lang>.<ext> (json3/srt).
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# Deps: yt-dlp. (Alternative SESSDATA-based API path documented in references/bilibili_api.md.)
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set -euo pipefail
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ref="${1:-}"
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browser="${2:-chrome}"
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[ -z "$ref" ] && { echo "usage: bili-subs.sh <BVID|av|URL> [browser]" >&2; exit 2; }
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command -v yt-dlp >/dev/null 2>&1 || { echo "ERROR: yt-dlp not installed (brew install yt-dlp / pipx install yt-dlp)" >&2; exit 3; }
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# Normalize to a watch URL (yt-dlp accepts BV/av URLs; bare IDs need wrapping).
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case "$ref" in
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http*) url="$ref" ;;
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BV*|av*|AV*) url="https://www.bilibili.com/video/$ref" ;;
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*) url="https://www.bilibili.com/video/$ref" ;;
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esac
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UA="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0 Safari/537.36"
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echo "Pulling subtitles via yt-dlp using your '$browser' cookies (Bilibili login required)…" >&2
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if env -u http_proxy -u https_proxy -u all_proxy -u HTTP_PROXY -u HTTPS_PROXY -u ALL_PROXY \
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yt-dlp --skip-download --write-subs --sub-langs "ai-zh,zh-Hans,zh-CN,zh" \
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--user-agent "$UA" --add-header "Referer:https://www.bilibili.com" \
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--cookies-from-browser "$browser" \
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-o "%(id)s.%(ext)s" "$url"; then
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echo "Done. If no subtitle file appeared, this video simply has no subtitle track." >&2
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else
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cat >&2 <<'EOF'
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ERROR: subtitle download failed. Most likely causes:
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- Not logged into bilibili.com in the chosen browser (subtitles are login-gated).
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- Browser cookie DB locked — close the browser and retry, or pass a different browser.
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- The video has no subtitle track at all (then there is nothing to fetch — do not invent one).
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Alternative: export SESSDATA and use the player/wbi/v2 API path (see references/bilibili_api.md).
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EOF
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exit 1
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fi
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