1

internal/handlers/post_text.go

@@ -0,0 +1,74 @@
+package handlers
+
+import (
+	"net/http"
+	"regexp"
+	"strings"
+)
+
+const postI18nColsSQL = `
+	COALESCE(p.text_zh,''), COALESCE(p.text_en,''), COALESCE(p.text_ja,''),
+	COALESCE(p.text_ko,''), COALESCE(p.text_vi,''), COALESCE(p.text_id,''), COALESCE(p.text_ms,'')`
+
+const maxPostTextLen = 32768
+const maxPostAttachments = 20
+
+var postLinkRe = regexp.MustCompile(`https?://`)
+
+type postTextI18n struct {
+	TextZh, TextEn, TextJa, TextKo, TextVi, TextId, TextMs string
+}
+
+type postLocalePayload struct {
+	Text string `json:"text"`
+}
+
+func (t postTextI18n) pick(r *http.Request) string {
+	return pickLangField(r, t.TextZh, t.TextEn, t.TextJa, t.TextKo, t.TextVi, t.TextId, t.TextMs)
+}
+
+func (t postTextI18n) anyNonEmpty() bool {
+	return strings.TrimSpace(t.TextZh) != "" ||
+		strings.TrimSpace(t.TextEn) != "" ||
+		strings.TrimSpace(t.TextJa) != "" ||
+		strings.TrimSpace(t.TextKo) != "" ||
+		strings.TrimSpace(t.TextVi) != "" ||
+		strings.TrimSpace(t.TextId) != "" ||
+		strings.TrimSpace(t.TextMs) != ""
+}
+
+func (t postTextI18n) legacyPrimary() string {
+	if strings.TrimSpace(t.TextZh) != "" {
+		return strings.TrimSpace(t.TextZh)
+	}
+	if strings.TrimSpace(t.TextEn) != "" {
+		return strings.TrimSpace(t.TextEn)
+	}
+	return ""
+}
+
+func scanPostTextI18n(zh, en, ja, ko, vi, id, ms string) postTextI18n {
+	return postTextI18n{TextZh: zh, TextEn: en, TextJa: ja, TextKo: ko, TextVi: vi, TextId: id, TextMs: ms}
+}
+
+func postTextHasLink(text string) bool {
+	return postLinkRe.MatchString(text)
+}
+
+func truncatePostTexts(t postTextI18n) postTextI18n {
+	tr := func(s string) string {
+		s = strings.TrimSpace(s)
+		if len(s) > maxPostTextLen {
+			return s[:maxPostTextLen]
+		}
+		return s
+	}
+	t.TextZh = tr(t.TextZh)
+	t.TextEn = tr(t.TextEn)
+	t.TextJa = tr(t.TextJa)
+	t.TextKo = tr(t.TextKo)
+	t.TextVi = tr(t.TextVi)
+	t.TextId = tr(t.TextId)
+	t.TextMs = tr(t.TextMs)
+	return t
+}