84 lines
2.3 KiB
TypeScript
84 lines
2.3 KiB
TypeScript
import path from "node:path";
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export const AVATAR_MAX_BYTES = 2 * 1024 * 1024;
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const LOCAL_AVATAR_EXTENSIONS = new Set([".png", ".jpg", ".jpeg", ".gif", ".webp", ".svg"]);
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const AVATAR_MIME_BY_EXT: Record<string, string> = {
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".png": "image/png",
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".jpg": "image/jpeg",
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".jpeg": "image/jpeg",
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".webp": "image/webp",
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".gif": "image/gif",
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".svg": "image/svg+xml",
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".bmp": "image/bmp",
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".tif": "image/tiff",
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".tiff": "image/tiff",
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};
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export const AVATAR_DATA_RE = /^data:/i;
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export const AVATAR_IMAGE_DATA_RE = /^data:image\//i;
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export const AVATAR_HTTP_RE = /^https?:\/\//i;
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export const AVATAR_SCHEME_RE = /^[a-z][a-z0-9+.-]*:/i;
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export const WINDOWS_ABS_RE = /^[a-zA-Z]:[\\/]/;
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const AVATAR_PATH_EXT_RE = /\.(png|jpe?g|gif|webp|svg|ico)$/i;
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export function resolveAvatarMime(filePath: string): string {
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const ext = path.extname(filePath).toLowerCase();
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return AVATAR_MIME_BY_EXT[ext] ?? "application/octet-stream";
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}
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export function isAvatarDataUrl(value: string): boolean {
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return AVATAR_DATA_RE.test(value);
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}
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export function isAvatarImageDataUrl(value: string): boolean {
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return AVATAR_IMAGE_DATA_RE.test(value);
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}
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export function isAvatarHttpUrl(value: string): boolean {
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return AVATAR_HTTP_RE.test(value);
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}
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export function hasAvatarUriScheme(value: string): boolean {
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return AVATAR_SCHEME_RE.test(value);
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}
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export function isWindowsAbsolutePath(value: string): boolean {
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return WINDOWS_ABS_RE.test(value);
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}
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export function isWorkspaceRelativeAvatarPath(value: string): boolean {
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if (!value) {
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return false;
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}
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if (value.startsWith("~")) {
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return false;
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}
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if (hasAvatarUriScheme(value) && !isWindowsAbsolutePath(value)) {
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return false;
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}
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return true;
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}
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export function isPathWithinRoot(rootDir: string, targetPath: string): boolean {
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const relative = path.relative(rootDir, targetPath);
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if (relative === "") {
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return true;
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}
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return !relative.startsWith("..") && !path.isAbsolute(relative);
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}
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export function looksLikeAvatarPath(value: string): boolean {
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if (/[\\/]/.test(value)) {
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return true;
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}
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return AVATAR_PATH_EXT_RE.test(value);
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}
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export function isSupportedLocalAvatarExtension(filePath: string): boolean {
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const ext = path.extname(filePath).toLowerCase();
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return LOCAL_AVATAR_EXTENSIONS.has(ext);
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}
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