Chuck Driesler
21 lines
768 B
TypeScript
21 lines
768 B
TypeScript
import { WorkspaceInvalidLogoError } from '@/modules/workspaces/errors/workspace'
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export const validateImageString = (imageString: string): void => {
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// Validate string is a reasonable size
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if (new TextEncoder().encode(imageString).length > 1024 * 1024 * 10) {
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throw new WorkspaceInvalidLogoError('Provided logo must be smaller than 10 MB')
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}
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// Validate string is base64 image
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const [prefix, ...rest] = imageString.split(',')
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const imageData = rest.pop()
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if (!prefix || !prefix.startsWith('data:image') || !imageData) {
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throw new WorkspaceInvalidLogoError('Provided logo is malformed')
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}
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if (Buffer.from(imageData, 'base64').toString('base64') !== imageData) {
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throw new WorkspaceInvalidLogoError('Provided logo is malformed')
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}
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}
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