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12 lines
595 B
TypeScript
12 lines
595 B
TypeScript
export default function(id: string): void {
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if (!id) throw new Error('ID cannot be empty');
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if (id.length > 256) throw new Error('ID cannot be longer than 256 characters');
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const whitelist = '0-9a-zA-Z._-';
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const regex = new RegExp(`^[${whitelist}]+$`);
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if (!id.match(regex)) throw new Error(`ID "${id}" contains invalid characters. Only the characters "${whitelist}" are allowed.`);
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if (!id[0].match(/[0-9a-zA-Z]/)) throw new Error('ID can only start with a number or letter');
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if (!id[id.length - 1].match(/[0-9a-zA-Z]/)) throw new Error('ID can only end with a number or letter');
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}
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