| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "database/sql" |
| 5 | "fmt" |
| 6 | "net/http" |
| 7 | "strconv" |
| 8 | "strings" |
| 9 | "time" |
| 10 | ) |
| 11 | |
| 12 | func formatDate(ts int64) string { |
| 13 | if ts <= 0 { |
| 14 | return "" |
| 15 | } |
| 16 | return time.Unix(ts, 0).UTC().Format("Jan 2, 2006") |
| 17 | } |
| 18 | |
| 19 | func parseIntDefault(s string, fallback int) int { |
| 20 | if v, err := strconv.Atoi(s); err == nil { |
| 21 | return v |
| 22 | } |
| 23 | return fallback |
| 24 | } |
| 25 | |
| 26 | func parsePositiveInt(s string) (int, error) { |
| 27 | v, err := strconv.Atoi(strings.TrimSpace(s)) |
| 28 | if err != nil || v < 1 { |
| 29 | return 0, fmt.Errorf("invalid integer") |
| 30 | } |
| 31 | return v, nil |
| 32 | } |
| 33 | |
| 34 | func validPollMinutes(v int) bool { |
| 35 | return v >= 1 && v <= 1440 |
| 36 | } |
| 37 | |
| 38 | func formPollMinutes(r *http.Request) (int, bool) { |
| 39 | mins, err := strconv.Atoi(r.FormValue("poll_interval_minutes")) |
| 40 | return mins, err == nil && validPollMinutes(mins) |
| 41 | } |
| 42 | |
| 43 | func itemFilterFromRequest(r *http.Request) ListItemsFilter { |
| 44 | filter := ListItemsFilter{Limit: parseIntDefault(r.URL.Query().Get("limit"), 100), UnreadOnly: r.URL.Query().Get("unread") == "true"} |
| 45 | if id, ok := queryInt64(r, "category_id"); ok { |
| 46 | filter.CategoryID = &id |
| 47 | } |
| 48 | if id, ok := queryInt64(r, "subscription_id"); ok { |
| 49 | filter.SubscriptionID = &id |
| 50 | } |
| 51 | return filter |
| 52 | } |
| 53 | |
| 54 | func queryInt64(r *http.Request, key string) (int64, bool) { |
| 55 | v := strings.TrimSpace(r.URL.Query().Get(key)) |
| 56 | if v == "" { |
| 57 | return 0, false |
| 58 | } |
| 59 | id, err := strconv.ParseInt(v, 10, 64) |
| 60 | if err != nil { |
| 61 | return 0, false |
| 62 | } |
| 63 | return id, true |
| 64 | } |
| 65 | |
| 66 | func splitAndTrim(s string) []string { |
| 67 | parts := strings.Split(s, ",") |
| 68 | out := []string{} |
| 69 | for _, part := range parts { |
| 70 | if trimmed := strings.TrimSpace(part); trimmed != "" { |
| 71 | out = append(out, trimmed) |
| 72 | } |
| 73 | } |
| 74 | return out |
| 75 | } |
| 76 | |
| 77 | func nullStringValue(v sql.NullString) string { |
| 78 | if v.Valid { |
| 79 | return v.String |
| 80 | } |
| 81 | return "" |
| 82 | } |
| 83 | |
| 84 | func nullStringPointer(v sql.NullString) *string { |
| 85 | if v.Valid { |
| 86 | return &v.String |
| 87 | } |
| 88 | return nil |
| 89 | } |
| 90 | |
| 91 | func toSubscriptionView(s Subscription) subscriptionView { |
| 92 | return subscriptionView{ID: s.ID, FeedURL: s.FeedURL, Title: s.Title, SiteURL: nullStringPointer(s.SiteURL), FaviconURL: nullStringPointer(s.FaviconURL), CategoryID: func() *int64 { |
| 93 | if s.CategoryID.Valid { |
| 94 | return &s.CategoryID.Int64 |
| 95 | } |
| 96 | return nil |
| 97 | }(), ETag: nullStringPointer(s.ETag), LastModified: nullStringPointer(s.LastModified), LastFetchedAt: nullStringPointer(s.LastFetchedAt), LastError: nullStringPointer(s.LastError), AddedAt: s.AddedAt} |
| 98 | } |
| 99 | |
| 100 | func itoa(v int) string { |
| 101 | return strconv.Itoa(v) |
| 102 | } |