ZacharyZhang-NYandClaude Opus 5.5
ddc8b485e9
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
23 lines
902 B
TypeScript
23 lines
902 B
TypeScript
/** Avatar colors persist as #rrggbb; anything else is a caller bug. */
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export function normalizeAvatarColor(value: string): string | null {
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const color = value.trim();
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if (!color) return null;
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if (!/^#[0-9a-fA-F]{6}$/.test(color)) throw new Error("Avatar color must be a #rrggbb hex value.");
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return color.toLowerCase();
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}
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/** Portraits are small base64 data URLs; the cap keeps the snapshot from ballooning. */
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const MAX_AVATAR_IMAGE_CHARS = 300_000;
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export function normalizeAvatarImage(value: string): string | null {
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const image = value.trim();
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if (!image) return null;
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if (!/^data:image\/(png|jpeg|webp);base64,[A-Za-z0-9+/=]+$/.test(image)) {
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throw new Error("Avatar image must be a base64 data URL (png, jpeg, or webp).");
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}
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if (image.length > MAX_AVATAR_IMAGE_CHARS) {
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throw new Error("Avatar image is too large - upload a smaller picture.");
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}
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return image;
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}
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