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Escape \0 in identifiers and literals #2900

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Escape \0 in identifiers and literals #2900

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12fca43
Escape \0 in identifiers and literals
benjie Jan 19, 2023
3ceb90b
Bump
benjie Mar 11, 2023
2bb87d0
Throw error on \0
benjie Mar 13, 2023
90309cd
Apply suggestions from code review
benjie Mar 13, 2023
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5 changes: 5 additions & 0 deletions packages/pg/lib/client.js
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Original file line number Diff line number Diff line change
Expand Up @@ -444,6 +444,9 @@ class Client extends EventEmitter {

// Ported from PostgreSQL 9.2.4 source code in src/interfaces/libpq/fe-exec.c
escapeIdentifier(str) {
if (str.includes('\0')) {
throw new Error('Identifier contains \\0, which is not allowed in PostgreSQL identifiers')
}
return '"' + str.replace(/"/g, '""') + '"'
}

Expand All @@ -459,6 +462,8 @@ class Client extends EventEmitter {
} else if (c === '\\') {
escaped += c + c
hasBackslash = true
} else if (c === '\0') {
throw new Error('Literal contains \\0, which is not allowed in PostgreSQL strings')
} else {
escaped += c
}
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