* feat: Code Interpreter API & File Search Agent Uploads
chore: add back code files
wip: first pass, abstract key dialog
refactor: influence checkbox on key changes
refactor: update localization keys for 'execute code' to 'run code'
wip: run code button
refactor: add throwError parameter to loadAuthValues and getUserPluginAuthValue functions
feat: first pass, API tool calling
fix: handle missing toolId in callTool function and return 404 for non-existent tools
feat: show code outputs
fix: improve error handling in callTool function and log errors
fix: handle potential null value for filepath in attachment destructuring
fix: normalize language before rendering and prevent null return
fix: add loading indicator in RunCode component while executing code
feat: add support for conditional code execution in Markdown components
feat: attachments
refactor: remove bash
fix: pass abort signal to graph/run
refactor: debounce and rate limit tool call
refactor: increase debounce delay for execute function
feat: set code output attachments
feat: image attachments
refactor: apply message context
refactor: pass `partIndex`
feat: toolCall schema/model/methods
feat: block indexing
feat: get tool calls
chore: imports
chore: typing
chore: condense type imports
feat: get tool calls
fix: block indexing
chore: typing
refactor: update tool calls mapping to support multiple results
fix: add unique key to nav link for rendering
wip: first pass, tool call results
refactor: update query cache from successful tool call mutation
style: improve result switcher styling
chore: note on using \`.toObject()\`
feat: add agent_id field to conversation schema
chore: typing
refactor: rename agentMap to agentsMap for consistency
feat: Agent Name as chat input placeholder
chore: bump agents
📦 chore: update @langchain dependencies to latest versions to match agents package
📦 chore: update @librechat/agents dependency to version 1.8.0
fix: Aborting agent stream removes sender; fix(bedrock): completion removes preset name label
refactor: remove direct file parameter to use req.file, add `processAgentFileUpload` for image uploads
feat: upload menu
feat: prime message_file resources
feat: implement conversation access validation in chat route
refactor: remove file parameter from processFileUpload and use req.file instead
feat: add savedMessageIds set to track saved message IDs in BaseClient, to prevent unnecessary double-write to db
feat: prevent duplicate message saves by checking savedMessageIds in AgentController
refactor: skip legacy RAG API handling for agents
feat: add files field to convoSchema
refactor: update request type annotations from Express.Request to ServerRequest in file processing functions
feat: track conversation files
fix: resendFiles, addPreviousAttachments handling
feat: add ID validation for session_id and file_id in download route
feat: entity_id for code file uploads/downloads
fix: code file edge cases
feat: delete related tool calls
feat: add stream rate handling for LLM configuration
feat: enhance system content with attached file information
fix: improve error logging in resource priming function
* WIP: PoC, sequential agents
WIP: PoC Sequential Agents, first pass content data + bump agents package
fix: package-lock
WIP: PoC, o1 support, refactor bufferString
feat: convertJsonSchemaToZod
fix: form issues and schema defining erroneous model
fix: max length issue on agent form instructions, limit conversation messages to sequential agents
feat: add abort signal support to createRun function and AgentClient
feat: PoC, hide prior sequential agent steps
fix: update parameter naming from config to metadata in event handlers for clarity, add model to usage data
refactor: use only last contentData, track model for usage data
chore: bump agents package
fix: content parts issue
refactor: filter contentParts to include tool calls and relevant indices
feat: show function calls
refactor: filter context messages to exclude tool calls when no tools are available to the agent
fix: ensure tool call content is not undefined in formatMessages
feat: add agent_id field to conversationPreset schema
feat: hide sequential agents
feat: increase upload toast duration to 10 seconds
* refactor: tool context handling & update Code API Key Dialog
feat: toolContextMap
chore: skipSpecs -> useSpecs
ci: fix handleTools tests
feat: API Key Dialog
* feat: Agent Permissions Admin Controls
feat: replace label with button for prompt permission toggle
feat: update agent permissions
feat: enable experimental agents and streamline capability configuration
feat: implement access control for agents and enhance endpoint menu items
feat: add welcome message for agent selection in localization
feat: add agents permission to access control and update version to 0.7.57
* fix: update types in useAssistantListMap and useMentions hooks for better null handling
* feat: mention agents
* fix: agent tool resource race conditions when deleting agent tool resource files
* feat: add error handling for code execution with user feedback
* refactor: rename AdminControls to AdminSettings for clarity
* style: add gap to button in AdminSettings for improved layout
* refactor: separate agent query hooks and check access to enable fetching
* fix: remove unused provider from agent initialization options, creates issue with custom endpoints
* refactor: remove redundant/deprecated modelOptions from AgentClient processes
* chore: update @librechat/agents to version 1.8.5 in package.json and package-lock.json
* fix: minor styling issues + agent panel uniformity
* fix: agent edge cases when set endpoint is no longer defined
* refactor: remove unused cleanup function call from AppService
* fix: update link in ApiKeyDialog to point to pricing page
* fix: improve type handling and layout calculations in SidePanel component
* fix: add missing localization string for agent selection in SidePanel
* chore: form styling and localizations for upload filesearch/code interpreter
* fix: model selection placeholder logic in AgentConfig component
* style: agent capabilities
* fix: add localization for provider selection and improve dropdown styling in ModelPanel
* refactor: use gpt-4o-mini > gpt-3.5-turbo
* fix: agents configuration for loadDefaultInterface and update related tests
* feat: DALLE Agents support
* refactor: scrollToEnd
* fix(validateConvoAccess): search conversation by ID for proper validation
* feat: Add unique index for conversationId and user in convoSchema
* refactor: Update font sizes 1 rem -> font-size-base in style.css
* fix: Assistants map type issues
* refactor: Remove obsolete scripts
* fix: Update DropdownNoState component to handle both string and OptionType values
* refactor: Remove config/loader.js file
* fix: remove crypto.randomBytes(); refactor: Create reusable function for generating token and hash
* feat: add tags property in Conversation model
* feat: add ConversationTag model
* feat: add the tags parameter to getConvosByPage
* feat: add API route to ConversationTag
* feat: add types of ConversationTag
* feat: add data access functions for conversation tags
* feat: add Bookmark table component
* feat: Add an action to bookmark
* feat: add Bookmark nav component
* fix: failed test
* refactor: made 'Saved' tag a constant
* feat: add new bookmark to current conversation
* chore: Add comment
* fix: delete tag from conversations when it's deleted
* fix: Update the query cache when the tag title is changed.
* chore: fix typo
* refactor: add description of rebuilding bookmarks
* chore: remove unused variables
* fix: position when adding a new bookmark
* refactor: add comment, rename a function
* refactor: add a unique constraint in ConversationTag
* chore: add localizations
* refactor: optimize backend operations for client requests
* fix: message styling
* refactor: Improve handleKeyUp logic in StreamRunManager.js and handleText.js
* refactor: Improve handleKeyUp logic in StreamRunManager.js and handleText.js
* fix: clear new convo messages on clear all convos
* fix: forgot to pass userId to getConvo
* refactor: update getPartialText to send basePayload.text
* chore: remove unused code
* refactor: Update NewChatButtonIcon component to use JSX syntax
The NewChatButtonIcon component in the Nav folder has been updated to use JSX syntax instead of calling the Icon function directly. This change improves code readability and maintainability.
* remove use memo
* refactor: allow passing `select` to messages db query
* fix: initial fix for non-recursive messages
* ci: first pass, importers test rewrite
* fix(groupConversationsByDate): handle edge case of conversation.updatedAt being null
* fix: correctly handle non-recursive uploads
* feat: imports non-recursive conversations with branches correctly
* feat: support retaining original options on import
* refactor: Allow `messageTree` field for Import of non-recursive conversations
* 🔧chore: add internationalization labels for archive feature
* ✨ feat: Add function to useArchiveConversationMutation()
This commit adds a new mutation function `useArchiveConversationMutation()` for archiving conversations. This function takes the ID string of the conversation to be archived and returns a mutation result object. Upon successful archiving, it removes and refreshes the conversation from the query data cache.
While ChatGPT PATCHes the archived status by sending `{is_archived: true}` to the URL `/backend-api/conversation/$conversation_id`, this implementation uses the `dataService.updateConversation(payload)` with a POST method, aligning with the existing code conventions.
* ✨ feat(api): add is_archived field to Conversation schema and update getConvosByPage method
This commit adds a new field `is_archived` with a default value of false to the Conversation schema. It also modifies the `getConvosByPage` method within the Conversation API to adjust the query to only target conversations where `is_archived` is set to false or where the `is_archived` field does not exist. The function `getConvosQueried`, which returns conversations for a specified Conversation ID, was determined not to require consideration of whether `is_archived` is true or false, and thus was not modified.
* ♻️ refactor: add className prop to DotsIcon component
To enhance the versatility of the DotsIcon component, this commit introduces the ability to specify a className prop, allowing for greater customization.
* ✨ feat(ui): add Edit Button to group Title change and Conversation delete buttons
Added a new Edit Button to the conversations, similar to the ChatGPT UI, which groups options for editing the conversation title and deleting conversations. This grouping is accessible through a dialogue that appears when the three-dot icon is clicked.
* ♻️ refactor(ui): enhance Delete Button to accept className and label options
Enhanced the Delete Button component to accept a `className` for customization and an optional `appendLabel`. The DeleteButton component is used by both `Convo.tsx` and `Conversation.tsx`, but currently only `Convo.tsx` is active and `Conversation.tsx `is apparently not used; removing `Conversation.tsx` may eliminate the need for the `appendLabel` property in the future.
* ♻️ refactor(ui): enhance RenameButton to accept label options
Added the ability to optionally display labels; the Rename Button component is used by both `Convo.tsx` and `Conversation.tsx`, but currently only `Convo.tsx` is active and `Conversation.tsx `is apparently not used; removing `Conversation.tsx` may eliminate the need for the `appendLabel` property in the future.
* 🔧 chors: additional localization labels
* ♻️ refactor: change is_archived property of conversation to camelCase
* Refactor the is_archived property of conversation to camelCase (isArchived) to adhere to the existing code conventions
* Modify the function that retrieves conversations to accept the isArchived parameter
* ♻️ refactor: add archiveConversation mutation
I thought I could divert dataService.updateConversation, but added a new archiveConversation because the request types are different. It might be better to make them common, but to avoid side effects, I added a new function this time.
Added process to deleteConversationMutation to delete archived conversations
* ✨ feat: Add the function to hide a cancel button in DialogTemplate component
The Cancel button is not needed when displaying the archive list, so I made the Cancel button optional.
* ♻️ refactor: Add support for filtering archived conversations in Nav component
This commit modifies the Nav component to add the ability to filter out archived conversations when fetching data. This is done by adding `isArchived: false` to the query parameters for both the `useConversationsInfiniteQuery()` and `useSearchInfiniteQuery()` hooks, effectively excluding any archived conversations from the results returned.
* ♻️ refactor: add Tooltip to DeleteButton
* Add Tooltip to DeleteButton component
* Display Tooltip when DeleteButton only shows an Icon without text
* ✨ feat(ui): add ArchiveButton component for archiving conversations
To be compatible with the ChatGPT UI, no confirmation dialog is displayed when ArchiveButton is clicked. The basic behavior conforms to DeleteButton and RenameButton.
* ✨ feat(ui): add Archive button to list of conversations
Modify the Nav of the conversation list to include a dropdown that contains the Rename and Delete options, similar to the ChatGPT UI. Additionally, an Archive button has been added adjacent to the dropdown menu.
* ✨ feat: Add ArchivedChatsTable component
Adds the `ArchivedChatsTable` component, which displays a table of archived chats. It has been implemented to be as compatible with the ChatGPT UI as possible.
* 🚑 fix(tooltip): increase z-index to ensure visibility over Dialog
Resolve an issue where tooltips were not visible when displayed over a Dialog. The z-index of `DialogPrimitive.Portal` in `Dialog.tsx` is set to 999. Since the rationale for this value is unclear, the z-index of the tooltip has been increased to 1000 to guarantee its visibility above the Dialog component.
* 🔧 chors: add internationalization labels
* typedef for ImportBatchBuilder
* feat: first pass, fork conversations
* feat: fork - getMessagesUpToTargetLevel
* fix: additional tests and fix getAllMessagesUpToParent
* chore: arrow function return
* refactor: fork 3 options
* chore: remove unused genbuttons
* chore: remove unused hover buttons code
* feat: fork first pass
* wip: fork remember setting
* style: user icon
* chore: move clear chats to data tab
* WIP: fork UI options
* feat: data-provider fork types/services/vars and use generic MutationOptions
* refactor: use single param for fork option, use enum, fix mongo errors, use Date.now(), add records flag for testing, use endpoint from original convo and messages, pass originalConvo to finishConversation
* feat: add fork mutation hook and consolidate type imports
* refactor: use enum
* feat: first pass, fork mutation
* chore: add enum for target level fork option
* chore: add enum for target level fork option
* show toast when checking remember selection
* feat: splitAtTarget
* feat: split at target option
* feat: navigate to new fork, show toasts, set result query data
* feat: hover info for all fork options
* refactor: add Messages settings tab
* fix(Fork): remember text info
* ci: test for single message and is target edge case
* feat: additional tests for getAllMessagesUpToParent
* ci: additional tests and cycle detection for getMessagesUpToTargetLevel
* feat: circular dependency checks for getAllMessagesUpToParent
* fix: getMessagesUpToTargetLevel circular dep. check
* ci: more tests for getMessagesForConversation
* style: hover text for checkbox fork items
* refactor: add statefulness to conversation import
* Basic implementation of ChatGPT conversation import
* remove debug code
* Handle citations
* Fix updatedAt in import
* update default model
* Use job scheduler to handle import requests
* import job status endpoint
* Add wrapper around Agenda
* Rate limits for import endpoint
* rename import api path
* Batch save import to mongo
* Improve naming
* Add documenting comments
* Test for importers
* Change button for importing conversations
* Frontend changes
* Import job status endpoint
* Import endpoint response
* Add translations to new phrases
* Fix conversations refreshing
* cleanup unused functions
* set timeout for import job status polling
* Add documentation
* get extra spaces back
* Improve error message
* Fix translation files after merge
* fix translation files 2
* Add zh translation for import functionality
* Sync mailisearch index after import
* chore: add dummy uri for jest tests, as MONGO_URI should only be real for E2E tests
* docs: fix links
* docs: fix conversationsImport section
* fix: user role issue for librechat imports
* refactor: import conversations from json
- organize imports
- add additional jsdocs
- use multer with diskStorage to avoid loading file into memory outside of job
- use filepath instead of loading data string for imports
- replace console logs and some logger.info() with logger.debug
- only use multer for import route
* fix: undefined metadata edge case and replace ChatGtp -> ChatGpt
* Refactor importChatGptConvo function to handle undefined metadata edge case and replace ChatGtp with ChatGpt
* fix: chatgpt importer
* feat: maintain tree relationship for librechat messages
* chore: use enum
* refactor: saveMessage to use single object arg, replace console logs, add userId to log message
* chore: additional comment
* chore: multer edge case
* feat: first pass, maintain tree relationship
* chore: organize
* chore: remove log
* ci: add heirarchy test for chatgpt
* ci: test maintaining of heirarchy for librechat
* wip: allow non-text content type messages
* refactor: import content part object json string
* refactor: more content types to format
* chore: consolidate messageText formatting
* docs: update on changes, bump data-provider/config versions, update readme
* refactor(indexSync): singleton pattern for MeiliSearchClient
* refactor: debug log after batch is done
* chore: add back indexSync error handling
---------
Co-authored-by: jakubmieszczak <jakub.mieszczak@zendesk.com>
Co-authored-by: Danny Avila <danny@librechat.ai>
* Style: Infinite Scroll and Group convos by date
* Style: Infinite Scroll and Group convos by date- Redesign NavBar
* Style: Infinite Scroll and Group convos by date- Redesign NavBar - Clean code
* Style: Infinite Scroll and Group convos by date- Redesign NavBar - Redesign NewChat Component
* Style: Infinite Scroll and Group convos by date- Redesign NavBar - Redesign NewChat Component
* Style: Infinite Scroll and Group convos by date- Redesign NavBar - Redesign NewChat Component
* Including OpenRouter and Mistral icon
* refactor(Conversations): cleanup use of utility functions and typing
* refactor(Nav/NewChat): use localStorage `lastConversationSetup` to determine the endpoint to use, as well as icons -> JSX components, remove use of `endpointSelected`
* refactor: remove use of `isFirstToday`
* refactor(Nav): remove use of `endpointSelected`, consolidate scrolling logic to its own hook `useNavScrolling`, remove use of recoil `conversation`
* refactor: Add spinner to bottom of list, throttle fetching, move query hooks to client workspace
* chore: sort by `updatedAt` field
* refactor: optimize conversation infinite query, use optimistic updates, add conversation helpers for managing pagination, remove unnecessary operations
* feat: gen_title route for generating the title for the conversation
* style(Convo): change hover bg-color
* refactor: memoize groupedConversations and return as array of tuples, correctly update convos pre/post message stream, only call genTitle if conversation is new, make `addConversation` dynamically either add/update depending if convo exists in pages already, reorganize type definitions
* style: rename Header NewChat Button -> HeaderNewChat, add NewChatIcon, closely match main Nav New Chat button to ChatGPT
* style(NewChat): add hover bg color
* style: cleanup comments, match ChatGPT nav styling, redesign search bar, make part of new chat sticky header, move Nav under same parent as outlet/mobilenav, remove legacy code, search only if searchQuery is not empty
* feat: add tests for conversation helpers and ensure no duplicate conversations are ever grouped
* style: hover bg-color
* feat: alt-click on convo item to open conversation in new tab
* chore: send error message when `gen_title` fails
---------
Co-authored-by: Walber Cardoso <walbercardoso@gmail.com>
* 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
* feat: add global teardown to remove test data and add registration/log-out to auth flow
* refactor(models/Conversation): index user field and add JSDoc to deleteConvos
* refactor: add user index to message schema and ensure user is saved to each Message
* refactor: add user to each saveMessage call
* fix: handle case where title is null in zod schema
* feat(e2e): ensure messages are deleted on cleanUp
* fix: set last convo for all endpoints on conversation update
* fix: enable registration for CI env
* server-side JWT auth implementation
* move oauth routes and strategies, fix bugs
* backend modifications for wiring up the frontend login and reg forms
* Add frontend data services for login and registration
* Add login and registration forms
* Implment auth context, functional client side auth
* protect routes with jwt auth
* finish local strategy (using local storage)
* Start setting up google auth
* disable token refresh, remove old auth middleware
* refactor client, add ApiErrorBoundary context
* disable google and facebook strategies
* fix: fix presets not displaying specific to user
* fix: fix issue with browser refresh
* fix: casing issue with User.js (#11)
* delete user.js to be renamed
* fix: fix casing issue with User.js
* comment out api error watcher temporarily
* fix: issue with api error watcher (#12)
* delete user.js to be renamed
* fix: fix casing issue with User.js
* comment out api error watcher temporarily
* feat: add google auth social login
* fix: make google login url dynamic based on dev/prod
* fix: bug where UI is briefly displayed before redirecting to login
* fix: fix cookie expires value for local auth
* Update README.md
* Update LOCAL_INSTALL structure
* Add local testing instructions
* Only load google strategy if client id and secret are provided
* Update .env.example files with new params
* fix issue with not redirecting to register form
* only show google login button if value is set in .env
* cleanup log messages
* Add label to button for google login on login form
* doc: fix client/server url values in .env.example
* feat: add error message details to registration failure
* Restore preventing paste on confirm password
* auto-login user after registering
* feat: forgot password (#24)
* make login/reg pages look like openai's
* add password reset data services
* new form designs similar to openai, add password reset pages
* add api's for password reset
* email utils for password reset
* remove bcrypt salt rounds from process.env
* refactor: restructure api auth code, consolidate routes (#25)
* add api's for password reset
* remove bcrypt salt rounds from process.env
* refactor: consolidate auth routes, use controller pattern
* refactor: code cleanup
* feat: migrate data to first user (#26)
* refactor: use /api for auth routes
* fix: use user id instead of username
* feat: migrate data to first user on register
* fix: fix social login routes after refactor (#27)
* refactor: use /api for auth routes
* fix: use user id instead of username
* feat: migrate data to first user on register
* fix: fix social login routes
* fix: issue with auto-login when logging out then logging in with new browser window (#28)
* refactor: use /api for auth routes
* fix: use user id instead of username
* feat: migrate data to first user on register
* fix: fix social login routes
* fix: fix issue with auto-login in new tab
* doc: Update README and .env.example files with user system information (#29)
* refactor: use /api for auth routes
* fix: use user id instead of username
* feat: migrate data to first user on register
* fix: fix social login routes
* fix: fix issue with auto-login in new tab
* doc: update README and .env.example files
* Fixup: LOCAL_INSTALL.md PS instructions (#200) (#30)
Co-authored-by: alfredo-f <alfredo.fomitchenko@mail.polimi.it>
* feat: send user with completion to protect against abuse (#31)
* Fixup: LOCAL_INSTALL.md PS instructions (#200)
* server-side JWT auth implementation
* move oauth routes and strategies, fix bugs
* backend modifications for wiring up the frontend login and reg forms
* Add frontend data services for login and registration
* Add login and registration forms
* Implment auth context, functional client side auth
* protect routes with jwt auth
* finish local strategy (using local storage)
* Start setting up google auth
* disable token refresh, remove old auth middleware
* refactor client, add ApiErrorBoundary context
* disable google and facebook strategies
* fix: fix presets not displaying specific to user
* fix: fix issue with browser refresh
* fix: casing issue with User.js (#11)
* delete user.js to be renamed
* fix: fix casing issue with User.js
* comment out api error watcher temporarily
* feat: add google auth social login
* fix: make google login url dynamic based on dev/prod
* fix: bug where UI is briefly displayed before redirecting to login
* fix: fix cookie expires value for local auth
* Only load google strategy if client id and secret are provided
* Update .env.example files with new params
* fix issue with not redirecting to register form
* only show google login button if value is set in .env
* cleanup log messages
* Add label to button for google login on login form
* doc: fix client/server url values in .env.example
* feat: add error message details to registration failure
* Restore preventing paste on confirm password
* auto-login user after registering
* feat: forgot password (#24)
* make login/reg pages look like openai's
* add password reset data services
* new form designs similar to openai, add password reset pages
* add api's for password reset
* email utils for password reset
* remove bcrypt salt rounds from process.env
* refactor: restructure api auth code, consolidate routes (#25)
* add api's for password reset
* remove bcrypt salt rounds from process.env
* refactor: consolidate auth routes, use controller pattern
* refactor: code cleanup
* feat: migrate data to first user (#26)
* refactor: use /api for auth routes
* fix: use user id instead of username
* feat: migrate data to first user on register
* fix: fix social login routes after refactor (#27)
* refactor: use /api for auth routes
* fix: use user id instead of username
* feat: migrate data to first user on register
* fix: fix social login routes
* fix: issue with auto-login when logging out then logging in with new browser window (#28)
* refactor: use /api for auth routes
* fix: use user id instead of username
* feat: migrate data to first user on register
* fix: fix social login routes
* fix: fix issue with auto-login in new tab
* doc: Update README and .env.example files with user system information (#29)
* refactor: use /api for auth routes
* fix: use user id instead of username
* feat: migrate data to first user on register
* fix: fix social login routes
* fix: fix issue with auto-login in new tab
* doc: update README and .env.example files
* Send user id to openai to protect against abuse
* add meilisearch to gitignore
* Remove webpack
---------
Co-authored-by: alfredo-f <alfredo.fomitchenko@mail.polimi.it>
---------
Co-authored-by: Danny Avila <110412045+danny-avila@users.noreply.github.com>
Co-authored-by: Alfredo Fomitchenko <alfredo.fomitchenko@mail.polimi.it>