soimort/you-get · error · AssertionError

Server refused to provide download link! (Errno:%s)

Error message

Server refused to provide download link! (Errno:%s)

What it means

Raised as AssertionError in baidu_pan_download (src/you_get/extractors/baidu.py:216). The POST to pan.baidu.com/api/sharedownload succeeded HTTP-wise but the JSON errno field is not '0', meaning Baidu declined to hand out the dlink (download URL). errno values distinguish rate limiting, auth failures, invalid sekey, etc.

Source

Thrown at src/you_get/extractors/baidu.py:216

    if isprotected != True:
        sign, timestamp, bdstoken, appid, primary_id, fs_id, uk = baidu_pan_parse(
            html)
    request_url = "http://pan.baidu.com/api/sharedownload?sign=%s&timestamp=%s&bdstoken=%s&channel=chunlei&clienttype=0&web=1&app_id=%s" % (
        sign, timestamp, bdstoken, appid)
    refer_url = url
    post_data = {
        'encrypt': 0,
        'product': 'share',
        'uk': uk,
        'primaryid': primary_id,
        'fid_list': '[' + fs_id + ']'
    }
    if isprotected == True:
        post_data['sekey'] = psk
    response_content = post_content(request_url, fake_headers, post_data, True)
    errno = match1(response_content, errno_patt)
    if errno != "0":
        raise AssertionError(
            "Server refused to provide download link! (Errno:%s)" % errno)
    real_url = r1(r'dlink":"([^"]+)"', response_content).replace('\\/', '/')
    title = r1(r'server_filename":"([^"]+)"', response_content)
    assert real_url
    type, ext, size = url_info(real_url, faker=True)
    title_wrapped = json.loads('{"wrapper":"%s"}' % title)
    title = title_wrapped['wrapper']
    logging.debug(real_url)
    return real_url, title, ext, size


def baidu_pan_parse(html):
    sign_patt = r'sign":"([^"]+)"'
    timestamp_patt = r'timestamp":([^"]+),'
    appid_patt = r'app_id":"([^"]+)"'
    bdstoken_patt = r'bdstoken":"([^"]+)"'
    fs_id_patt = r'fs_id":([^"]+),'
    uk_patt = r'uk":([^"]+),'

View on GitHub (pinned to 049548f3f3)

Solutions

  1. Wait a while (minutes) and retry — most nonzero errnos here are transient rate-limit responses.
  2. For protected shares, re-run the password flow so a fresh sekey/BDCLND cookie is used.
  3. Log the actual errno value to identify the specific Baidu refusal reason and adjust (e.g. reduce request frequency, rotate referer/headers).
  4. If persistent across all shares, Baidu's API changed — update the request/parse code or upgrade you-get.

Example fix

# before
errno = match1(response_content, errno_patt)
if errno != "0":
    raise AssertionError("Server refused to provide download link! (Errno:%s)" % errno)

# after: retry with backoff on transient errnos
for attempt in range(3):
    response_content = post_content(request_url, fake_headers, post_data, True)
    errno = match1(response_content, errno_patt)
    if errno == "0":
        break
    sleep(30 * (attempt + 1))
else:
    raise AssertionError("Server refused to provide download link! (Errno:%s)" % errno)
Defensive patterns

Strategy: retry

Try / catch

import time
for attempt in range(3):
    try:
        return baidu_pan_download(url)
    except AssertionError as e:
        msg = str(e)
        if 'Server refused' in msg and 'Errno:118' in msg or 'Errno:119' in msg:
            time.sleep(60 * (attempt + 1))  # throttle backoff
            continue
        raise

Prevention

When it happens

Trigger: post_content() to http://pan.baidu.com/api/sharedownload returns an errno != '0'. Typical cases: too many download-link requests from one IP (errno 118/119- style throttling), missing/invalid sekey for a protected share, expired sign/timestamp, or Baidu API policy changes.

Common situations: Repeated batch downloads of Baidu shares triggering anti-leech throttling; protected share where the password cookie (BDCLND/sekey) is wrong or expired; long-running scripts where the one-time sign has gone stale.

Related errors

AI-assisted analysis of soimort/you-get@049548f3f3 (2026-08-15). Data as JSON: /api/errors/4f2b6bcef44b5ddd. Report an issue: GitHub.