102 lines
4.5 KiB
TypeScript
102 lines
4.5 KiB
TypeScript
export const VIDEO_WATERMARK_RULES_STORAGE_KEY = "video-canvas-watermark-rules-v1";
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export type VideoCanvasVideoDownloadConfig = {
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acknowledgementText: string;
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applicationText: string;
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responsibilityText: string;
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rulesLinkLabel: string;
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rulesTitle: string;
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rulesUrl: string;
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welcomeText: string;
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};
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export const defaultVideoCanvasVideoDownloadConfig: VideoCanvasVideoDownloadConfig = {
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acknowledgementText:
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'开启本功能开关并点击 "保存设置" 按钮，即视为您已充分知悉并同意本规则全部内容。后续您可通过 "头像 - AI水印设置" 路径调整本功能配置。',
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applicationText:
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'您申请我们向您提供没有添加显式标识（以下或称"水印"）的AI生成合成内容之前，亦即您使用"去水印"功能之前，请您务必认真阅读并充分理解本规则。您知悉、同意并遵守以下内容的，方可使用本功能。',
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responsibilityText:
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"经您提出申请，{{siteName}}平台可向您提供未添加前述显式标识的AI生成合成内容。请注意：您在使用网络信息内容传播服务发布该等AI生成合成内容时，需主动作出声明，并通过传播{{siteName}}平台提供的标识功能完成标识操作。您确认已知晓并承诺：若您未依据法律法规要求在AI生成合成内容中添加显式标识，进而引发公众混淆或误认，由此产生的全部后果及法律责任均由您自行承担。更详细的说明见",
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rulesLinkLabel: "{{siteName}}水印规范",
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rulesTitle: "AI 生成内容水印管理规则",
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rulesUrl: "https://resonate.feishu.cn/wiki/",
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welcomeText: "欢迎您使用{{siteName}}的产品和服务！",
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};
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function normalizeDownloadCopy(value: unknown, fallback: string, maxLength: number) {
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const normalized = typeof value === "string" ? value.trim().slice(0, maxLength) : "";
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return normalized || fallback;
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}
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function normalizeRulesUrl(value: unknown, fallback: string) {
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const candidate = typeof value === "string" ? value.trim().slice(0, 2048) : "";
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if (candidate.startsWith("/") && !candidate.startsWith("//")) return candidate;
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try {
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const url = new URL(candidate);
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return url.protocol === "http:" || url.protocol === "https:" ? candidate : fallback;
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} catch {
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return fallback;
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}
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}
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export function normalizeVideoCanvasVideoDownloadConfig(
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value: unknown,
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): VideoCanvasVideoDownloadConfig {
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const incoming = value && typeof value === "object" && !Array.isArray(value)
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? value as Record<string, unknown>
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: {};
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const fallback = defaultVideoCanvasVideoDownloadConfig;
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return {
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acknowledgementText: normalizeDownloadCopy(
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incoming.acknowledgementText,
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fallback.acknowledgementText,
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2_000,
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),
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applicationText: normalizeDownloadCopy(incoming.applicationText, fallback.applicationText, 4_000),
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responsibilityText: normalizeDownloadCopy(
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incoming.responsibilityText,
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fallback.responsibilityText,
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6_000,
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),
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rulesLinkLabel: normalizeDownloadCopy(incoming.rulesLinkLabel, fallback.rulesLinkLabel, 120),
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rulesTitle: normalizeDownloadCopy(incoming.rulesTitle, fallback.rulesTitle, 120),
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rulesUrl: normalizeRulesUrl(incoming.rulesUrl, fallback.rulesUrl),
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welcomeText: normalizeDownloadCopy(incoming.welcomeText, fallback.welcomeText, 500),
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};
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}
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export function resolveVideoDownloadRuleCopy(value: string, siteName: string) {
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return value.replaceAll("{{siteName}}", siteName.trim() || "AI平台");
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}
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const VIDEO_EXTENSION_BY_CONTENT_TYPE: Record<string, string> = {
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"video/mp4": "mp4",
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"video/quicktime": "mov",
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"video/webm": "webm",
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};
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export function sanitizeVideoDownloadTitle(value: string) {
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return (value.trim() || "视频").replace(/[\\/:*?"<>|]+/g, "-").slice(0, 80);
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}
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export function getVideoDownloadExtension(source: string, contentType = "") {
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const normalizedContentType = contentType.split(";", 1)[0]?.trim().toLowerCase();
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if (normalizedContentType && VIDEO_EXTENSION_BY_CONTENT_TYPE[normalizedContentType]) {
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return VIDEO_EXTENSION_BY_CONTENT_TYPE[normalizedContentType];
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}
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try {
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const pathname = new URL(source, "https://canvas.local").pathname;
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const extension = pathname.match(/\.([a-z0-9]{2,5})$/i)?.[1]?.toLowerCase();
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if (extension && ["mp4", "mov", "m4v", "webm"].includes(extension)) return extension;
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} catch {
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// Fall through to the interoperable video default.
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}
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return "mp4";
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}
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export function getVideoDownloadFilename(title: string, source: string, contentType = "") {
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return `${sanitizeVideoDownloadTitle(title)}.${getVideoDownloadExtension(source, contentType)}`;
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}
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