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Feature/redaction: Ability to add redaction rules to process the LLM output #4101

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Feature/redaction: Ability to add redaction rules to process the LLM output #4101

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886a116
adding redaction rules to post processing
vinodkiran Feb 28, 2025
047d8ad
Post Processing -> Redaction Rules
vinodkiran Feb 28, 2025
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12 changes: 12 additions & 0 deletions packages/server/src/Interface.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -354,3 +354,15 @@ export interface IVariableOverride {

// DocumentStore related
export * from './Interface.DocumentStore'

export enum RedactionRuleType {
REMOVE = 'remove',
REPLACE = 'replace',
ASTERISK = 'asterisk'
}
export interface RedactionRule {
phrase: string
isRegexp: boolean
type: RedactionRuleType
replacement: string
}
74 changes: 56 additions & 18 deletions packages/server/src/utils/buildChatflow.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,9 @@ import {
IVariable,
INodeOverrides,
IVariableOverride,
MODE
MODE,
RedactionRule,
RedactionRuleType
} from '../Interface'
import { InternalFlowiseError } from '../errors/internalFlowiseError'
import { databaseEntities } from '.'
Expand Down Expand Up @@ -653,26 +655,62 @@ export const executeFlow = async ({
resultText = result.text
/* Check for post-processing settings */
if (chatflowConfig?.postProcessing?.enabled === true) {
let moderatedResponse = resultText
try {
const postProcessingFunction = JSON.parse(chatflowConfig?.postProcessing?.customFunction)
const nodeInstanceFilePath = componentNodes['customFunction'].filePath as string
const nodeModule = await import(nodeInstanceFilePath)
const nodeData = {
inputs: { javascriptFunction: postProcessingFunction },
outputs: { output: 'output' }
//first run redaction rules
if (chatflowConfig.postProcessing.redactionRules) {
const redactionRules: RedactionRule[] = JSON.parse(chatflowConfig.postProcessing.redactionRules)
for (const rule of redactionRules) {
switch (rule.type) {
case RedactionRuleType.REMOVE:
if (rule.isRegexp) {
const regex = new RegExp(rule.phrase, 'g')
moderatedResponse = moderatedResponse.replace(regex, '')
} else {
moderatedResponse = moderatedResponse.replace(rule.phrase, '')
}
break
case RedactionRuleType.REPLACE:
if (rule.isRegexp) {
const regex = new RegExp(rule.phrase, 'g')
moderatedResponse = moderatedResponse.replace(regex, rule.replacement)
} else {
moderatedResponse = moderatedResponse.replace(rule.phrase, rule.replacement)
}
break
case RedactionRuleType.ASTERISK:
if (rule.isRegexp) {
const regex = new RegExp(rule.phrase, 'g')
moderatedResponse = moderatedResponse.replace(regex, '***')
} else {
moderatedResponse = moderatedResponse.replace(rule.phrase, '***')
}
break
}
}
}
const options: ICommonObject = {
chatflowid: chatflow.id,
sessionId,
chatId,
input: question,
rawOutput: resultText,
appDataSource,
databaseEntities,
logger
//second - apply custom function
if (chatflowConfig?.postProcessing?.customFunction) {
const postProcessingFunction = JSON.parse(chatflowConfig?.postProcessing?.customFunction)
const nodeInstanceFilePath = componentNodes['customFunction'].filePath as string
const nodeModule = await import(nodeInstanceFilePath)
const nodeData = {
inputs: { javascriptFunction: postProcessingFunction },
outputs: { output: 'output' }
}
const options: ICommonObject = {
chatflowid: chatflow.id,
sessionId,
chatId,
input: question,
rawOutput: moderatedResponse,
appDataSource,
databaseEntities,
logger
}
const customFuncNodeInstance = new nodeModule.nodeClass()
moderatedResponse = await customFuncNodeInstance.init(nodeData, question, options)
}
const customFuncNodeInstance = new nodeModule.nodeClass()
let moderatedResponse = await customFuncNodeInstance.init(nodeData, question, options)
result.text = moderatedResponse
resultText = result.text
} catch (e) {
Expand Down
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