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SnapOtterandGitHub
9cccbc9576
Wrap convert and gif-tools process functions so a Sharp .toBuffer() failure carries an authored SafeError title (and the original as cause) rather than a scrubbed "Error: Error".
41 lines
1.5 KiB
TypeScript
41 lines
1.5 KiB
TypeScript
import { isSafeMessageError, isToolInputError, SafeError } from "@snapotter/shared";
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import type { ToolProcessCtx } from "../routes/tool-factory.js";
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type ImageProcess<T> = (
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inputBuffer: Buffer,
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settings: T,
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filename: string,
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ctx?: ToolProcessCtx,
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) => Promise<{ buffer: Buffer; filename: string; contentType: string }>;
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/**
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* Wrap an image tool's process function so an otherwise-opaque failure (most
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* often a Sharp `.toBuffer()` that throws an empty-message Error) surfaces a
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* safe, authored title instead of "Error: Error".
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*
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* The API's Sentry scrubber replaces any non-SafeError message with a type-only
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* value (see `rebuildErrorValue`), so a bare Sharp failure is undiagnosable.
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* Re-throwing as a SafeError makes the title survive while the original error is
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* kept as `cause`, preserving its stack and exact location. Errors we already
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* author (SafeError) or that flag bad user input (ToolInputError) pass through
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* untouched so their class is not masked.
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*/
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export function withImageEncodeContext<T>(
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message: string,
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codeOf: (settings: T) => string,
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process: ImageProcess<T>,
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): ImageProcess<T> {
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return async (inputBuffer, settings, filename, ctx) => {
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try {
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return await process(inputBuffer, settings, filename, ctx);
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} catch (err) {
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if (isSafeMessageError(err) || isToolInputError(err)) throw err;
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throw new SafeError(message, {
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kind: "bug",
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code: codeOf(settings),
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cause: err instanceof Error ? err : new Error(String(err)),
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});
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}
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};
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}
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