323 lines
11 KiB
TypeScript
323 lines
11 KiB
TypeScript
import { strFromU8, unzipSync } from "fflate";
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export const RESOURCE_IMPORT_MAX_ROWS = 100;
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export const RESOURCE_IMPORT_MAX_BYTES = 5 * 1024 * 1024;
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export type ResourceImportRow = {
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rowNumber: number;
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platform: string;
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nickname: string;
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publicAccountId: string;
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profileUrl: string;
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ipLocation: string;
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followers: number;
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followersResolved: boolean;
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cooperationSource: string;
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errors: string[];
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};
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const HEADER_ALIASES = {
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profileUrl: ["账号链接", "账号主页", "账号主页链接", "主页链接"],
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nickname: ["账号昵称", "账号名称", "昵称"],
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publicAccountId: ["账号ID", "账号号", "小红书号", "抖音号"],
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ipLocation: ["IP属地", "IP地址", "IP地区", "IP所在地"],
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followers: ["粉丝数", "粉丝", "粉丝量"],
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cooperationSource: ["合作来源", "资源来源", "历史合作来源"],
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} as const;
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type CanonicalHeader = keyof typeof HEADER_ALIASES;
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function decodeXml(value: string) {
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return value
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.replace(/<[^>]+>/g, "")
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.replace(/</g, "<")
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.replace(/>/g, ">")
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.replace(/"/g, '"')
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.replace(/'/g, "'")
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.replace(/&/g, "&")
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.replace(/&#(\d+);/g, (_, code) => String.fromCodePoint(Number(code)))
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.replace(/&#x([0-9a-f]+);/gi, (_, code) =>
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String.fromCodePoint(Number.parseInt(code, 16)),
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);
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}
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function textNodes(xml: string) {
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return [...xml.matchAll(/<t\b[^>]*>([\s\S]*?)<\/t>/g)]
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.map((match) => decodeXml(match[1]))
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.join("");
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}
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function columnIndex(reference: string) {
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const letters = reference.match(/^[A-Z]+/i)?.[0]?.toUpperCase() ?? "";
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let result = 0;
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for (const letter of letters) result = result * 26 + letter.charCodeAt(0) - 64;
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return Math.max(0, result - 1);
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}
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function parseWorksheet(xml: string, sharedStrings: string[]) {
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const rows: string[][] = [];
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for (const rowMatch of xml.matchAll(/<row\b([^>]*)>([\s\S]*?)<\/row>/g)) {
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const rowAttributes = rowMatch[1];
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const rowNumber = Number(rowAttributes.match(/\br="(\d+)"/)?.[1] ?? rows.length + 1);
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const values: string[] = [];
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for (const cellMatch of rowMatch[2].matchAll(/<c\b([^>]*)>([\s\S]*?)<\/c>/g)) {
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const attributes = cellMatch[1];
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const body = cellMatch[2];
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const reference = attributes.match(/\br="([A-Z]+\d+)"/i)?.[1] ?? "A1";
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const type = attributes.match(/\bt="([^"]+)"/)?.[1] ?? "";
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const rawValue = body.match(/<v>([\s\S]*?)<\/v>/)?.[1] ?? "";
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let value = "";
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if (type === "s") value = sharedStrings[Number(rawValue)] ?? "";
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else if (type === "inlineStr") value = textNodes(body);
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else if (type === "b") value = rawValue === "1" ? "TRUE" : "FALSE";
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else value = decodeXml(rawValue);
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values[columnIndex(reference)] = value.trim();
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}
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while (rows.length < rowNumber - 1) rows.push([]);
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rows[rowNumber - 1] = values;
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}
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return rows;
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}
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function parseXlsx(bytes: Uint8Array) {
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const entries = unzipSync(bytes);
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const sharedXml = entries["xl/sharedStrings.xml"]
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? strFromU8(entries["xl/sharedStrings.xml"])
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: "";
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const sharedStrings = [...sharedXml.matchAll(/<si\b[^>]*>([\s\S]*?)<\/si>/g)].map(
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(match) => textNodes(match[1]),
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);
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const sheets = Object.keys(entries)
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.filter((name) => /^xl\/worksheets\/sheet\d+\.xml$/.test(name))
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.sort((left, right) => left.localeCompare(right, undefined, { numeric: true }));
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if (sheets.length === 0) throw new Error("Excel 中没有可读取的工作表");
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return sheets.map((name) => parseWorksheet(strFromU8(entries[name]), sharedStrings));
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}
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function parseCsv(text: string) {
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const rows: string[][] = [];
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let row: string[] = [];
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let cell = "";
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let quoted = false;
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for (let index = 0; index < text.length; index += 1) {
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const char = text[index];
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if (quoted) {
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if (char === '"' && text[index + 1] === '"') {
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cell += '"';
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index += 1;
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} else if (char === '"') quoted = false;
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else cell += char;
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} else if (char === '"') quoted = true;
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else if (char === ",") {
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row.push(cell.trim());
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cell = "";
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} else if (char === "\n" || char === "\r") {
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if (char === "\r" && text[index + 1] === "\n") index += 1;
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row.push(cell.trim());
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if (row.some(Boolean)) rows.push(row);
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row = [];
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cell = "";
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} else cell += char;
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}
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row.push(cell.trim());
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if (row.some(Boolean)) rows.push(row);
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return rows;
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}
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function normalizeHeader(value: string) {
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return value
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.replace(/[\s_\-（）()]/g, "")
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.replace(/必填|选填/g, "")
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.toLocaleLowerCase("zh-CN");
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}
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function canonicalHeader(value: string): CanonicalHeader | null {
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const normalized = normalizeHeader(value);
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for (const [key, aliases] of Object.entries(HEADER_ALIASES)) {
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if (aliases.some((alias) => normalizeHeader(alias) === normalized)) {
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return key as CanonicalHeader;
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}
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}
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return null;
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}
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function findHeader(rows: string[][]) {
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for (let index = 0; index < Math.min(rows.length, 12); index += 1) {
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const mapping = new Map<CanonicalHeader, number>();
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rows[index].forEach((cell, column) => {
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const header = canonicalHeader(cell);
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if (header && !mapping.has(header)) mapping.set(header, column);
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});
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if (mapping.has("profileUrl")) {
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return { rowIndex: index, mapping };
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}
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}
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return null;
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}
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export function normalizeProfileUrl(value: string) {
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const extracted = value.match(/https?:\/\/[^\s，,；;]+/i)?.[0] ?? value.trim();
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if (!extracted) return "";
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try {
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const url = new URL(extracted);
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if (!(["http:", "https:"].includes(url.protocol))) return "";
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url.protocol = "https:";
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url.hostname = url.hostname.toLowerCase();
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url.search = "";
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url.hash = "";
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url.pathname = url.pathname.replace(/\/+$/, "") || "/";
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return url.toString().replace(/\/$/, "");
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} catch {
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return "";
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}
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}
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export function platformFromProfileUrl(profileUrl: string) {
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if (!profileUrl) return "";
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try {
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const url = new URL(profileUrl);
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if (
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(url.hostname === "xiaohongshu.com" ||
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url.hostname.endsWith(".xiaohongshu.com")) &&
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/^\/user\/profile\/[^/]+/i.test(url.pathname)
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) {
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return "小红书";
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}
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} catch {
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// URL validation is reported by normalizeRows.
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}
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return "";
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}
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function valueAt(row: string[], mapping: Map<CanonicalHeader, number>, key: CanonicalHeader) {
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const index = mapping.get(key);
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return index === undefined ? "" : String(row[index] ?? "").trim();
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}
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export function parseResourceFollowers(value: string) {
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const normalized = value.trim().replace(/[,，\s]/g, "").replace(/\+$/, "");
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if (!normalized) return { value: 0, resolved: false, valid: true };
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const match = normalized.match(/^(\d+(?:\.\d+)?)(万|w|W|千|k|K)?$/);
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if (!match) return { value: 0, resolved: false, valid: false };
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const multiplier =
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match[2] === "万" || match[2]?.toLowerCase() === "w"
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? 10_000
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: match[2] === "千" || match[2]?.toLowerCase() === "k"
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? 1_000
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: 1;
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return {
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value: Math.round(Number(match[1]) * multiplier),
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resolved: true,
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valid: true,
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};
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}
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export function resourceImportMissingFields(
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row: Pick<
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ResourceImportRow,
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"nickname" | "publicAccountId" | "ipLocation" | "followersResolved"
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>,
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) {
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const missing: string[] = [];
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if (!row.nickname.trim()) missing.push("nickname");
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if (!row.publicAccountId.trim()) missing.push("publicAccountId");
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if (!row.ipLocation.trim() || row.ipLocation.trim() === "待识别") {
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missing.push("ipLocation");
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}
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if (!row.followersResolved) missing.push("followers");
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return missing;
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}
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function normalizeRows(rows: string[][]) {
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const header = findHeader(rows);
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if (!header) {
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throw new Error("没有找到模板表头，请使用系统提供的导入模板");
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}
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const result: ResourceImportRow[] = [];
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for (let index = header.rowIndex + 1; index < rows.length; index += 1) {
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const source = rows[index];
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if (!source.some((cell) => String(cell ?? "").trim())) continue;
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const rawProfileUrl = valueAt(source, header.mapping, "profileUrl");
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const profileUrl = normalizeProfileUrl(rawProfileUrl);
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const platform = platformFromProfileUrl(profileUrl);
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const rawFollowers = valueAt(source, header.mapping, "followers");
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const parsedFollowers = parseResourceFollowers(rawFollowers);
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const errors: string[] = [];
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if (!rawProfileUrl) errors.push("账号主页不能为空");
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else if (!profileUrl) errors.push("账号主页链接格式不正确");
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else if (!platform) errors.push("当前自动解析仅支持小红书账号主页");
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if (!parsedFollowers.valid) {
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errors.push("粉丝数格式不正确，请填写数字或如 1.3万、10+");
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}
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result.push({
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rowNumber: index + 1,
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platform,
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nickname: valueAt(source, header.mapping, "nickname"),
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publicAccountId: valueAt(source, header.mapping, "publicAccountId"),
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profileUrl,
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ipLocation: valueAt(source, header.mapping, "ipLocation"),
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followers: parsedFollowers.value,
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followersResolved: parsedFollowers.resolved,
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cooperationSource: valueAt(source, header.mapping, "cooperationSource"),
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errors,
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});
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}
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if (result.length === 0) throw new Error("表格中没有可导入的账号数据");
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if (result.length > RESOURCE_IMPORT_MAX_ROWS) {
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throw new Error(`单次最多导入 ${RESOURCE_IMPORT_MAX_ROWS} 个账号`);
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}
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return result;
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}
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export function parseResourceImportFile(fileName: string, bytes: Uint8Array) {
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const extension = fileName.toLocaleLowerCase().split(".").pop();
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const workbooks =
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extension === "csv"
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? [parseCsv(new TextDecoder("utf-8").decode(bytes).replace(/^\uFEFF/, ""))]
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: extension === "xlsx"
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? parseXlsx(bytes)
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: null;
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if (!workbooks) throw new Error("仅支持 .xlsx 或 .csv 文件");
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for (const rows of workbooks) {
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if (findHeader(rows)) return normalizeRows(rows);
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}
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throw new Error("没有找到模板表头，请使用系统提供的导入模板");
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}
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function shortHash(value: string) {
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let hash = 2166136261;
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for (const character of value) {
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hash ^= character.charCodeAt(0);
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hash = Math.imul(hash, 16777619);
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}
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return Math.abs(hash >>> 0).toString(36);
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}
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export function resourcePlatformUid(row: Pick<ResourceImportRow, "platform" | "profileUrl" | "publicAccountId">) {
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if (row.profileUrl) {
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try {
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const url = new URL(row.profileUrl);
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const candidate =
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url.pathname.match(/\/user\/profile\/([^/]+)/i)?.[1] ??
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url.pathname.match(/\/(?:user|profile)\/([^/]+)/i)?.[1] ??
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url.pathname.split("/").filter(Boolean).at(-1);
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if (candidate && candidate.length >= 3) return candidate;
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} catch {
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// Validation already reports malformed profile links.
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}
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}
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const identity = row.publicAccountId || row.profileUrl;
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return `manual-${shortHash(`${row.platform}:${identity}`)}`;
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}
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export function mergeCooperationSources(existing: string, incoming: string) {
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return [
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...new Set(
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`${existing}、${incoming}`
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.split(/[、,，;；|]/)
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.map((item) => item.trim())
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.filter(Boolean),
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),
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].join("、");
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}
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