126 lines
3.7 KiB
Go
126 lines
3.7 KiB
Go
package services
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import (
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"encoding/json"
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"strings"
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"server/models"
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beego "github.com/beego/beego/v2/server/web"
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)
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// PublicRequestBaseURL 根据请求拼出对外访问的根（用于把 /uploads/... 拼成完整下载地址）
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func PublicRequestBaseURL(c *beego.Controller) (scheme, host string) {
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scheme = "http"
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if c.Ctx.Request.TLS != nil {
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scheme = "https"
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}
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if strings.EqualFold(strings.TrimSpace(c.Ctx.Request.Header.Get("X-Forwarded-Proto")), "https") {
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scheme = "https"
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}
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host = strings.TrimSpace(c.Ctx.Request.Host)
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return scheme, host
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}
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// ResolveSoftwareDownloadURL 优先使用自定义 download_url；否则根据 file_id 读附件 src 拼完整 URL
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func ResolveSoftwareDownloadURLs(scheme, host string, downloadURLs *string) map[string]string {
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result := map[string]string{}
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if downloadURLs == nil || strings.TrimSpace(*downloadURLs) == "" {
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return result
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}
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raw := strings.TrimSpace(*downloadURLs)
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var values map[string]string
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if err := json.Unmarshal([]byte(raw), &values); err != nil {
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return result
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}
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for k, v := range values {
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platform := strings.ToLower(strings.TrimSpace(k))
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url := strings.TrimSpace(v)
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if platform == "" || url == "" {
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continue
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}
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result[platform] = ResolvePublicURL(scheme, host, url)
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}
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return result
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}
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// legacyStorageHosts 历史七牛 CDN 域名：这两个域名只支持 HTTP，HTTPS 页面直接引用会被
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// 浏览器以 Mixed Content 拦截，需在返回给前端前改写为当前存储配置的访问入口。
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var legacyStorageHosts = []string{"7colud.yunzer.cn", "7cloud.yunzer.cn"}
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// ResolvePublicURL 把相对路径拼成公开 URL；http(s) 地址原样返回，
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// 但历史七牛域名会改写为当前存储配置的访问基址（如 https://yunzer.com.cn/qiniu）。
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func ResolvePublicURL(scheme, host, src string) string {
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src = strings.TrimSpace(src)
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if src == "" {
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return ""
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}
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lowerSrc := strings.ToLower(src)
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if strings.HasPrefix(lowerSrc, "http://") || strings.HasPrefix(lowerSrc, "https://") {
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return rewriteLegacyStorageURL(src)
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}
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if host == "" {
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return src
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}
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if !strings.HasPrefix(src, "/") {
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src = "/" + src
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}
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if scheme == "" {
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scheme = "http"
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}
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return scheme + "://" + host + src
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}
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// rewriteLegacyStorageURL 把历史七牛域名的 scheme+host 换成当前存储配置域名，
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// 保留对象路径不变；非历史域名或配置缺失时原样返回。
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func rewriteLegacyStorageURL(src string) string {
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cfg, err := models.GetStorageConfig()
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if err != nil {
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return src
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}
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base := strings.TrimRight(strings.TrimSpace(cfg.QiniuDomain), "/")
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if base == "" {
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return src
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}
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if !strings.HasPrefix(base, "http://") && !strings.HasPrefix(base, "https://") {
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base = "https://" + base
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}
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lowerSrc := strings.ToLower(src)
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for _, legacyHost := range legacyStorageHosts {
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for _, scheme := range []string{"http://", "https://"} {
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prefix := scheme + legacyHost
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if !strings.HasPrefix(lowerSrc, prefix) {
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continue
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}
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rest := src[len(prefix):]
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// 防止 7colud.yunzer.cn.example.com 这类前缀误匹配
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if rest == "" || strings.HasPrefix(rest, "/") {
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return base + rest
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}
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}
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}
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return src
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}
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// ResolveSoftwareDownloadURL 优先使用自定义 download_url；否则根据 file_id 读附件 src 拼完整 URL
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func ResolveSoftwareDownloadURL(scheme, host string, downloadURL *string, fileID *uint64) string {
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if downloadURL != nil {
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u := strings.TrimSpace(*downloadURL)
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if u != "" {
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return u
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}
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}
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if fileID == nil || *fileID == 0 {
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return ""
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}
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var f models.SystemFile
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err := models.Orm.QueryTable(new(models.SystemFile)).
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Filter("id", *fileID).
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Filter("delete_time__isnull", true).
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One(&f)
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if err != nil {
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return ""
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}
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return ResolvePublicURL(scheme, host, f.Src)
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}
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