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escape shell metacharacters #640

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May 6, 2025
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5 changes: 5 additions & 0 deletions .changeset/deep-nails-behave.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@opennextjs/cloudflare": patch
---

fix: escape shell arguments when populating the cache
33 changes: 26 additions & 7 deletions packages/cloudflare/src/cli/commands/populate-cache.ts
Original file line number Diff line number Diff line change
Expand Up @@ -122,7 +122,7 @@ async function populateR2IncrementalCache(

runWrangler(
options,
["r2 object put", JSON.stringify(path.join(bucket, cacheKey)), `--file ${JSON.stringify(fullPath)}`],
["r2 object put", quoteShellMeta(path.join(bucket, cacheKey)), `--file ${quoteShellMeta(fullPath)}`],
// NOTE: R2 does not support the environment flag and results in the following error:
// Incorrect type for the 'cacheExpiry' field on 'HttpMetadata': the provided value is not of type 'date'.
{ target: populateCacheOptions.target, excludeRemoteFlag: true, logging: "error" }
Expand Down Expand Up @@ -168,11 +168,10 @@ async function populateKVIncrementalCache(

writeFileSync(chunkPath, JSON.stringify(kvMapping));

runWrangler(
options,
["kv bulk put", JSON.stringify(chunkPath), `--binding ${JSON.stringify(KV_CACHE_BINDING_NAME)}`],
{ ...populateCacheOptions, logging: "error" }
);
runWrangler(options, ["kv bulk put", quoteShellMeta(chunkPath), `--binding ${KV_CACHE_BINDING_NAME}`], {
...populateCacheOptions,
logging: "error",
});

rmSync(chunkPath);
}
Expand All @@ -197,7 +196,7 @@ function populateD1TagCache(
options,
[
"d1 execute",
JSON.stringify(D1_TAG_BINDING_NAME),
D1_TAG_BINDING_NAME,
`--command "CREATE TABLE IF NOT EXISTS revalidations (tag TEXT NOT NULL, revalidatedAt INTEGER NOT NULL, UNIQUE(tag) ON CONFLICT REPLACE);"`,
],
{ ...populateCacheOptions, logging: "error" }
Expand Down Expand Up @@ -258,3 +257,23 @@ export async function populateCache(
}
}
}

/**
* Escape shell metacharacters.
*
* When `spawnSync` is invoked with `shell: true`, metacharacters need to be escaped.
*
* Based on https://github.com/ljharb/shell-quote/blob/main/quote.js
*
* @param arg
* @returns escaped arg
*/
function quoteShellMeta(arg: string) {
if (/["\s]/.test(arg) && !/'/.test(arg)) {
return `'${arg.replace(/(['\\])/g, "\\$1")}'`;
}
if (/["'\s]/.test(arg)) {
return `"${arg.replace(/(["\\$`!])/g, "\\$1")}"`;
}
return arg.replace(/([A-Za-z]:)?([#!"$&'()*,:;<=>?@[\\\]^`{|}])/g, "$1\\$2");
}