48 lines
1.7 KiB
TypeScript
48 lines
1.7 KiB
TypeScript
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export type SourceCredit = {
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title: string;
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license: string;
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uri?: string;
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attribution?: string;
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licenseUrl?: string;
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retrievedAt?: string;
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originSha?: string;
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modificationNotice?: string;
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};
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const LICENSE_URLS: Record<string, string> = {
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"CC0-1.0": "https://creativecommons.org/publicdomain/zero/1.0/",
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"CC-BY-4.0": "https://creativecommons.org/licenses/by/4.0/",
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"CC-BY-NC-4.0": "https://creativecommons.org/licenses/by-nc/4.0/",
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MIT: "https://opensource.org/license/mit",
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};
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const ATTRIBUTION_LICENSES = new Set(["CC-BY-4.0", "CC-BY-NC-4.0", "MIT"]);
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export function uniqueOriginNotices(sources: SourceCredit[]): SourceCredit[] {
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const seen = new Set<string>();
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const notices: SourceCredit[] = [];
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for (const source of sources) {
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if (!source.attribution?.trim()) continue;
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const key = [source.attribution, source.license, source.licenseUrl ?? "", source.originSha ?? "", source.modificationNotice ?? ""].join("\n");
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if (seen.has(key)) continue;
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seen.add(key);
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notices.push(source);
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}
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return notices;
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}
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export function attributionGaps(source: SourceCredit): string[] {
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const gaps: string[] = [];
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if (!source.license) gaps.push("license");
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if (!source.title.trim()) gaps.push("title");
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if (!source.uri?.trim()) gaps.push("uri");
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if (ATTRIBUTION_LICENSES.has(source.license) && !source.attribution?.trim()) gaps.push("attribution");
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if (source.license === "CC-BY-4.0" || source.license === "CC-BY-NC-4.0") {
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if (source.licenseUrl !== LICENSE_URLS[source.license]) gaps.push("licenseUrl");
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if (!source.retrievedAt?.trim()) gaps.push("retrievedAt");
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if (!source.originSha?.trim()) gaps.push("originSha");
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if (!source.modificationNotice?.trim()) gaps.push("modificationNotice");
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}
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return gaps;
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}
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