feat: add ads/sponsor/captcha modules and polish home & chat UI
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198
backend/service/sponsor.go
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198
backend/service/sponsor.go
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@@ -0,0 +1,198 @@
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package service
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import (
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"encoding/json"
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"errors"
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"fmt"
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"net/url"
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"strings"
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"time"
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"unicode/utf8"
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"github.com/freefire/jiang13-bbs/model"
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"gorm.io/gorm"
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)
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const (
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SettingKeySponsorsConfig = "sponsors_config"
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SponsorDefaultTitle = "赞助商"
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SponsorMaxItems = 24
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SponsorMaxNameRunes = 32
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SponsorMaxHoverRunes = 120
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)
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// SponsorItem 侧栏赞助商条目
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type SponsorItem struct {
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ID string `json:"id"`
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Name string `json:"name"`
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LogoURL string `json:"logo_url"`
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LinkURL string `json:"link_url"`
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HoverText string `json:"hover_text"`
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Enabled bool `json:"enabled"`
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SortOrder int `json:"sort_order"`
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}
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// SponsorsConfig 赞助商板块配置
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type SponsorsConfig struct {
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Enabled bool `json:"enabled"`
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PanelTitle string `json:"panel_title"`
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Items []SponsorItem `json:"items"`
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}
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func DefaultSponsorsConfig() SponsorsConfig {
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return SponsorsConfig{
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Enabled: true,
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PanelTitle: SponsorDefaultTitle,
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Items: []SponsorItem{},
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}
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}
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func (s *AdService) loadSponsorsConfig() (SponsorsConfig, error) {
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var row model.SiteSetting
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err := s.db.Where("key = ?", SettingKeySponsorsConfig).First(&row).Error
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return DefaultSponsorsConfig(), nil
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}
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if err != nil {
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return SponsorsConfig{}, err
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}
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cfg := DefaultSponsorsConfig()
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if strings.TrimSpace(row.Value) == "" {
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return cfg, nil
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}
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if err := json.Unmarshal([]byte(row.Value), &cfg); err != nil {
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return DefaultSponsorsConfig(), nil
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}
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if strings.TrimSpace(cfg.PanelTitle) == "" {
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cfg.PanelTitle = SponsorDefaultTitle
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}
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return cfg, nil
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}
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func (s *AdService) GetSponsorsConfig() (SponsorsConfig, error) {
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return s.loadSponsorsConfig()
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}
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// PublicSponsors 侧栏展示用（仅启用且有 logo 的条目）
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func (s *AdService) PublicSponsors() (SponsorsConfig, []SponsorItem, error) {
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cfg, err := s.loadSponsorsConfig()
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if err != nil {
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return cfg, nil, err
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}
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if !cfg.Enabled {
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return cfg, []SponsorItem{}, nil
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}
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out := make([]SponsorItem, 0, len(cfg.Items))
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for _, it := range cfg.Items {
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if !it.Enabled {
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continue
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}
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if strings.TrimSpace(it.LogoURL) == "" {
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continue
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}
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out = append(out, it)
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}
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return cfg, out, nil
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}
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func (s *AdService) SaveSponsorsConfig(in SponsorsConfig) (SponsorsConfig, error) {
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out, err := normalizeSponsorsConfig(in)
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if err != nil {
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return SponsorsConfig{}, err
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}
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b, err := json.Marshal(out)
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if err != nil {
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return SponsorsConfig{}, err
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}
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row := model.SiteSetting{Key: SettingKeySponsorsConfig, Value: string(b), UpdatedAt: time.Now()}
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if err := s.db.Save(&row).Error; err != nil {
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return SponsorsConfig{}, err
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}
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return out, nil
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}
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func normalizeSponsorsConfig(in SponsorsConfig) (SponsorsConfig, error) {
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out := DefaultSponsorsConfig()
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out.Enabled = in.Enabled
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title := strings.TrimSpace(in.PanelTitle)
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if title == "" {
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title = SponsorDefaultTitle
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}
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if utf8.RuneCountInString(title) > 16 {
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return SponsorsConfig{}, errors.New("侧栏标题最多 16 字")
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}
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out.PanelTitle = title
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if len(in.Items) > SponsorMaxItems {
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return SponsorsConfig{}, fmt.Errorf("赞助商最多 %d 个", SponsorMaxItems)
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}
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seen := map[string]struct{}{}
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items := make([]SponsorItem, 0, len(in.Items))
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for i, raw := range in.Items {
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id := strings.TrimSpace(raw.ID)
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if id == "" {
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id = fmt.Sprintf("sp_%d", i+1)
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}
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if _, ok := seen[id]; ok {
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return SponsorsConfig{}, errors.New("赞助商 id 重复")
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}
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seen[id] = struct{}{}
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name := strings.TrimSpace(raw.Name)
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if name == "" {
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return SponsorsConfig{}, errors.New("请填写赞助商名称")
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}
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if utf8.RuneCountInString(name) > SponsorMaxNameRunes {
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return SponsorsConfig{}, fmt.Errorf("赞助商名称最多 %d 字", SponsorMaxNameRunes)
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}
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logo := strings.TrimSpace(raw.LogoURL)
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if logo == "" {
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return SponsorsConfig{}, errors.New("请上传或填写赞助商 logo")
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}
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if !validSponsorLogoURL(logo) {
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return SponsorsConfig{}, errors.New("logo 须为 https 或本站 /uploads/ 图片")
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}
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link := strings.TrimSpace(raw.LinkURL)
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if link != "" {
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u, err := url.Parse(link)
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if err != nil || (u.Scheme != "https" && u.Scheme != "http") || u.Host == "" {
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return SponsorsConfig{}, errors.New("赞助商链接须为 http(s) 地址")
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}
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link = u.String()
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}
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hover := strings.TrimSpace(raw.HoverText)
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if utf8.RuneCountInString(hover) > SponsorMaxHoverRunes {
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return SponsorsConfig{}, fmt.Errorf("赞助说明最多 %d 字", SponsorMaxHoverRunes)
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}
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items = append(items, SponsorItem{
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ID: id,
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Name: name,
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LogoURL: logo,
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LinkURL: link,
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HoverText: hover,
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Enabled: raw.Enabled,
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SortOrder: i,
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})
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}
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out.Items = items
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return out, nil
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}
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func validSponsorLogoURL(u string) bool {
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if adImageUploadRe.MatchString(u) {
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return true
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}
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if strings.HasPrefix(strings.ToLower(u), "https://") && adImageHTTPSRe.MatchString(u) {
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return true
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}
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// 允许常见本站 uploads 路径（赞助 logo）
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low := strings.ToLower(u)
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if strings.HasPrefix(low, "/uploads/") && len(u) <= 500 {
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return true
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}
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return false
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}
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