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fix(drivers/lanzou): support new /fn download page structure (#3157)

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Lanzou recently changed the file share page: download params moved
into an iframe (/fn?<token>) inner page, and the download API is now
an absolute URL (https://apifile.woozooo.com/ajaxfile.php?file=N)
with new sign params (wp_sign/ajaxdata, action=downprocess).

The old findFileIDReg ('/ajaxm.php?file=N' relative path) no longer
matches, causing 'failed link: failed get link: not find file id'.

Fall back to parsing the new /fn page structure when the legacy
regex does not match. Legacy flow is kept untouched.

Signed-off-by: rzsgsfm <rzsgsfm@users.noreply.github.com>
Co-authored-by: rzsgsfm <rzsgsfm@users.noreply.github.com>
Co-authored-by: GLM (ZCode CLI) <noreply@z.ai>
This commit is contained in:
帅丘
2026-10-03 14:50:51 +08:00
committed by GitHub
parent ea10624fb6
commit e1d88b071f
1 changed files with 43 additions and 8 deletions
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drivers/lanzou/util.go
+41 -6
View File
@@ -315,6 +315,36 @@ var findDownPageParamReg = regexp.MustCompile(`<iframe.*?src="(.+?)"`)
// 获取文件ID
var findFileIDReg = regexp.MustCompile(`'/ajax(?:file|m)\.php\?file=(\d+)'`)
// 2026-10 改版：文件页将下载参数移入 /fn? 内页，接口变为 apifile 绝对地址并携带签名
var (
fnDomainReg = regexp.MustCompile(`var\s+domain[12]\s*=\s*'([^']*(?:ajaxfile|ajaxm)\.php\?file=(\d+)[^']*)'`)
fnSignReg = regexp.MustCompile(`var\s+wp_sign\s*=\s*'([^']*)'`)
fnAjaxDataReg = regexp.MustCompile(`var\s+ajaxdata\s*=\s*'([^']*)'`)
)
// parseFnPage 从改版后的 /fn? 内页提取下载接口地址与签名表单
// 对应页面 JS：POST domain1 {'action':'downprocess','websignkey':ajaxdata,'signs':ajaxdata,'sign':wp_sign,'websign':'2','kd':kdns,'ves':1}
func parseFnPage(pageData string) (string, map[string]string, error) {
matches := fnDomainReg.FindStringSubmatch(pageData)
if len(matches) < 3 {
return "", nil, fmt.Errorf("not find fn ajax url")
}
sign := fnSignReg.FindStringSubmatch(pageData)
ajaxdata := fnAjaxDataReg.FindStringSubmatch(pageData)
if len(sign) < 2 || len(ajaxdata) < 2 {
return "", nil, fmt.Errorf("not find fn sign")
}
return matches[1], map[string]string{
"action": "downprocess",
"websignkey": ajaxdata[1],
"signs": ajaxdata[1],
"sign": sign[1],
"websign": "2",
"kd": "1",
"ves": "1",
}, nil
}
// 获取分享链接主界面
func (d *LanZou) getShareUrlHtml(shareID string) (string, error) {
var vs string
@@ -437,18 +467,23 @@ func (d *LanZou) getFilesByShareUrl(shareID, pwd string, sharePageData string) (
return nil, err
}
nextPageData := RemoveNotes(string(data))
var resp FileShareInfoAndUrlResp[int]
matches := findFileIDReg.FindStringSubmatch(nextPageData)
if len(matches) >= 2 {
// 旧版结构：相对路径 /ajaxm.php?file=N
param, err = htmlJsonToMap(nextPageData)
if err != nil {
return nil, err
}
matches := findFileIDReg.FindStringSubmatch(nextPageData)
if len(matches) < 2 {
ajaxUrl := d.ShareUrl + matches[0][1:len(matches[0])-1]
_, err = d.post(ajaxUrl, func(req *resty.Request) { req.SetFormData(param) }, &resp)
} else if fnUrl, fnForm, ferr := parseFnPage(nextPageData); ferr == nil {
// 2026-10 改版结构：/fn? 内页携带 apifile 绝对地址与签名参数
_, err = d.post(fnUrl, func(req *resty.Request) { req.SetFormData(fnForm) }, &resp)
} else {
return nil, fmt.Errorf("not find file id")
}
ajaxUrl := d.ShareUrl + matches[0][1:len(matches[0])-1]
var resp FileShareInfoAndUrlResp[int]
_, err = d.post(ajaxUrl, func(req *resty.Request) { req.SetFormData(param) }, &resp)
if err != nil {
return nil, err
}