feat(python): 完成 Python 全量迁移——剩余平台、登录通道与公共层修复
- 新增 5sing/apple/xm/me/qt/lr 平台包与取流实现（含 xm-sign、MissEvan 签名、蜻蜓 HMAC、Apple developer token） - 新增 wy/kg/tx/lr 登录：扫码、手机号、账密（kg 20028 风控指纹）、cookie 绑定、kg/tx 续期 - request 层：保留多值 Set-Cookie；JSON body 紧凑化（修复 kg 网关验签）；直连不经系统代理（对齐 Node） - 登录路由统一 Body(embed=True)，修复扫码轮询 422；lifespan 接入登录续期调度 - ruff/format/pyright 全绿；14 平台真实联网与 HTTP 路由验证通过
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"""网易云歌词（移植自 sdk/wy/lyric.ts，参考 Binaryify/NeteaseCloudMusicApi 的 module/lyric_new.js）。
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上游返回 yrc（逐字）+ lrc（逐行）+ 各语种翻译/rlrc。逐字歌词的时间标签是
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`[起始ms,时长ms](词起始ms,词时长ms,0)词` 形态，需要转换成标准 LRC + 富文本 `<偏移,时长>` 标签。
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"""
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from __future__ import annotations
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import json
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import re
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from typing import Any
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from app.sdk.common.request import http_fetch
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from app.sdk.platforms.wy.utils import UA_LINUX_CHROME
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from app.sdk.platforms.wy.utils.crypto import eapi
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RX_INFO = re.compile(r'^{"')
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RX_LINE_TIME = re.compile(r"^\[(\d+),\d+\]")
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RX_WORD_TIME = re.compile(r"\(\d+,\d+,\d+\)")
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RX_WORD_TIME_ALL = re.compile(r"(\(\d+,\d+,\d+\))")
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RX_WORD_ITEM = re.compile(r"\((\d+),(\d+),\d+\)")
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LYRIC_HOST = "https://interface3.music.163.com/eapi/song/lyric/v1"
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def ms_format(time_ms: Any) -> str:
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"""毫秒 → `[mm:ss.SSS]`。非数字返回空串（原实现用 Number.isNaN 判定）。"""
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try:
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total = int(float(time_ms))
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except (TypeError, ValueError):
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return ""
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if total < 0:
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return ""
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ms = total % 1000
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seconds = total // 1000
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# 与原实现一致：毫秒不补齐（JS 的 `timeMs % 1000` 直接插值）
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return f"[{seconds // 60:02d}:{seconds % 60:02d}.{ms}]"
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def parse_lyric(lines: list[str]) -> dict[str, str]:
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yrc_lines: list[str] = []
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lrc_lines: list[str] = []
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for raw_line in lines:
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line = raw_line.strip()
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match = RX_LINE_TIME.match(line)
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if not match:
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if line.startswith("[offset"):
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yrc_lines.append(line)
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lrc_lines.append(line)
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continue
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start_ms = int(match.group(1))
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start_str = ms_format(start_ms)
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if not start_str:
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continue
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words = RX_LINE_TIME.sub("", line)
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lrc_lines.append(start_str + RX_WORD_TIME_ALL.sub("", words))
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word_times = RX_WORD_TIME_ALL.findall(words)
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if not word_times:
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continue
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tags = []
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for chunk in word_times:
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item = RX_WORD_ITEM.search(chunk)
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if not item:
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continue
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tags.append(f"<{max(int(item.group(1)) - start_ms, 0)},{item.group(2)}>")
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word_arr = RX_WORD_TIME.split(words)[1:] # 首段是第一个时间标签前的内容
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new_words = "".join(
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f"{tag}{word_arr[index] if index < len(word_arr) else ''}" for index, tag in enumerate(tags)
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)
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yrc_lines.append(f"{start_str}{new_words}")
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return {"lyric": "\n".join(lrc_lines), "yrc": "\n".join(yrc_lines)}
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def parse_header_info(text: Any) -> list[str] | None:
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"""清洗歌词文本：去掉 \\r，把 `{"t":ms,"c":[{"tx":...}]}` 形式的逐字行转成标准 LRC 行。"""
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if text is None:
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return None
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raw = str(text).strip().replace("\r", "")
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if not raw:
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return None
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out: list[str] = []
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for line in raw.split("\n"):
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if not RX_INFO.match(line):
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out.append(line)
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continue
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try:
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info = json.loads(line)
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except (ValueError, TypeError):
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out.append("")
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continue
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tag = ms_format(info.get("t"))
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if not tag:
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out.append("")
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continue
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out.append(tag + "".join(str(chunk.get("tx", "")) for chunk in info.get("c") or []))
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return out
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def get_intv(interval: Any) -> int:
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"""`mm:ss.SSS`（或 `hh:mm:ss.SSS`）→ 毫秒。"""
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if not interval:
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return 0
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text = str(interval)
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if "." not in text:
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text += ".0"
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parts = re.split(r"[:.]", text)
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while len(parts) < 3:
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parts.insert(0, "0")
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minute, second, milli = parts[0], parts[1], parts[2]
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def to_int(value: str) -> int:
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try:
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return int(value)
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except ValueError:
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return 0
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return to_int(minute) * 3_600_000 + to_int(second) * 1000 + to_int(milli)
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def fix_time_tag(lrc: str, target_lrc: str) -> str:
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"""把 target 的文本按时间接近（<100ms）对齐到 lrc 的时间标签上。"""
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rx_time = re.compile(r"^\[([\d:.]+)\]")
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lrc_lines = lrc.split("\n")
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new_lrc: list[str] = []
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temp: list[str] = []
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for line in target_lrc.split("\n"):
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match = rx_time.match(line)
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if not match:
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continue
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words = rx_time.sub("", line)
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if not words.strip():
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continue
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t1 = get_intv(match.group(1))
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while lrc_lines:
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lrc_line = lrc_lines.pop(0)
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lrc_match = rx_time.match(lrc_line)
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if not lrc_match:
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continue
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t2 = get_intv(lrc_match.group(1))
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if abs(t1 - t2) < 100:
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merged = rx_time.sub(lrc_match.group(0), line).strip()
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if not merged:
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continue
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new_lrc.append(merged)
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break
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temp.append(lrc_line)
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lrc_lines = [*temp, *lrc_lines]
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temp = []
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return "\n".join(new_lrc)
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def parse(y_lrc: Any, yt_lrc: Any, yr_lrc: Any, lrc: Any, tlrc: Any, rlrc: Any) -> dict[str, str]:
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"""优先用逐字歌词（yrc）合成，缺失时退回普通 LRC。"""
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info = {"lyric": "", "tlyric": "", "rlyric": "", "yrc": ""}
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if y_lrc:
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lines = parse_header_info(y_lrc)
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if lines:
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result = parse_lyric(lines)
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if yt_lrc:
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t_lines = parse_header_info(yt_lrc)
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if t_lines:
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info["tlyric"] = fix_time_tag(result["lyric"], "\n".join(t_lines))
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if yr_lrc:
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r_lines = parse_header_info(yr_lrc)
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if r_lines:
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info["rlyric"] = fix_time_tag(result["lyric"], "\n".join(r_lines))
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headers = "\n".join(line for line in lines if re.match(r"^\[[\d:.]+\]", line))
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info["lyric"] = f"{headers}\n{result['lyric']}"
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info["yrc"] = result["yrc"]
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return info
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for key, value in (("lyric", lrc), ("tlyric", tlrc), ("rlyric", rlrc)):
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if not value:
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continue
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parsed_lines = parse_header_info(value)
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if parsed_lines:
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info[key] = "\n".join(parsed_lines)
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return info
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def fix_time_label(lrc: Any, tlrc: Any = None, romalrc: Any = None) -> tuple[Any, Any, Any]:
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"""修正 `[mm:ss:SS]` 这类把毫秒写成第二冒号的错误时间标签（社区通行做法）。"""
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if not lrc:
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return lrc, tlrc, romalrc
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text = str(lrc)
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new_lrc = re.sub(r"\[(\d{2}:\d{2}):(\d{2})\]", r"[\1.\2]", text)
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new_tlrc = re.sub(r"\[(\d{2}:\d{2}):(\d{2})\]", r"[\1.\2]", tlrc) if isinstance(tlrc, str) else tlrc
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if new_lrc != text or new_tlrc != tlrc:
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lrc, tlrc = new_lrc, new_tlrc
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if isinstance(romalrc, str):
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romalrc = re.sub(r"\[(\d{2}:\d{2}):(\d{2,3})\]", r"[\1.\2]", romalrc)
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romalrc = re.sub(r"\[(\d{2}:\d{2}\.\d{2})0\]", r"[\1]", romalrc)
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return lrc, tlrc, romalrc
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def _pick_lyric(block: Any) -> Any:
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return block.get("lyric") if isinstance(block, dict) else None
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async def get_lyric(song_info: dict[str, Any]) -> dict[str, str]:
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"""取歌词。原文失败文案：Get lyric failed。"""
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resp = await http_fetch(
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LYRIC_HOST,
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method="post",
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headers={"User-Agent": UA_LINUX_CHROME, "origin": "https://music.163.com"},
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form=eapi(
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"/api/song/lyric/v1",
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{
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"id": song_info.get("songmid"),
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"cp": False,
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"tv": 0,
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"lv": 0,
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"rv": 0,
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"kv": 0,
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"yv": 0,
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"ytv": 0,
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"yrv": 0,
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},
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),
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)
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body = resp.body if isinstance(resp.body, dict) else {}
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if body.get("code") != 200 or not _pick_lyric(body.get("lrc")):
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raise RuntimeError("Get lyric failed")
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lrc, tlrc, romalrc = fix_time_label(
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_pick_lyric(body.get("lrc")), _pick_lyric(body.get("tlyric")), _pick_lyric(body.get("romalrc"))
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)
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info = parse(
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_pick_lyric(body.get("yrc")),
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_pick_lyric(body.get("ytlrc")),
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_pick_lyric(body.get("yromalrc")),
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lrc,
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tlrc,
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romalrc,
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)
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if not info["lyric"]:
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raise RuntimeError("Get lyric failed")
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return info
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