LibreChat/api/server/utils/math.js
Danny Avila ea1dd59ef4
refactor(api): Central Logging 📜 (#1348)
* WIP: initial logging changes
add several transports in ~/config/winston
omit messages in logs, truncate long strings
add short blurb in dotenv for debug logging
GoogleClient: using logger
OpenAIClient: using logger, handleOpenAIErrors
Adding typedef for payload message
bumped winston and using winston-daily-rotate-file
moved config for server paths to ~/config dir
Added `DEBUG_LOGGING=true` to .env.example

* WIP: Refactor logging statements in code

* WIP: Refactor logging statements and import configurations

* WIP: Refactor logging statements and import configurations

* refactor: broadcast Redis initialization message with `info` not `debug`

* refactor: complete Refactor logging statements and import configurations

* chore: delete unused tools

* fix: circular dependencies due to accessing logger

* refactor(handleText): handle booleans and write tests

* refactor: redact sensitive values, better formatting

* chore: improve log formatting, avoid passing strings to 2nd arg

* fix(ci): fix jest tests due to logger changes

* refactor(getAvailablePluginsController): cache plugins as they are static and avoids async addOpenAPISpecs call every time

* chore: update docs

* chore: update docs

* chore: create separate meiliSync logger, clean up logs to avoid being unnecessarily verbose

* chore: spread objects where they are commonly logged to allow string truncation

* chore: improve error log formatting
2023-12-14 07:49:27 -05:00

47 lines
1.5 KiB
JavaScript

/**
* Evaluates a mathematical expression provided as a string and returns the result.
*
* If the input is already a number, it returns the number as is.
* If the input is not a string or contains invalid characters, an error is thrown.
* If the evaluated result is not a number, an error is thrown.
*
* @param {string|number} str - The mathematical expression to evaluate, or a number.
* @param {number} [fallbackValue] - The default value to return if the input is not a string or number, or if the evaluated result is not a number.
*
* @returns {number} The result of the evaluated expression or the input number.
*
* @throws {Error} Throws an error if the input is not a string or number, contains invalid characters, or does not evaluate to a number.
*/
function math(str, fallbackValue) {
const fallback = typeof fallbackValue !== 'undefined' && typeof fallbackValue === 'number';
if (typeof str !== 'string' && typeof str === 'number') {
return str;
} else if (typeof str !== 'string') {
if (fallback) {
return fallbackValue;
}
throw new Error(`str is ${typeof str}, but should be a string`);
}
const validStr = /^[+\-\d.\s*/%()]+$/.test(str);
if (!validStr) {
if (fallback) {
return fallbackValue;
}
throw new Error('Invalid characters in string');
}
const value = eval(str);
if (typeof value !== 'number') {
if (fallback) {
return fallbackValue;
}
throw new Error(`[math] str did not evaluate to a number but to a ${typeof value}`);
}
return value;
}
module.exports = math;