mirror of
https://github.com/hwchase17/langchain
synced 2024-11-08 07:10:35 +00:00
f2782f4c86
- **Description:** `tools.gmail.send_message` implements a `SendMessageSchema` that is not used anywhere. `GmailSendMessage` also does not have an `args_schema` attribute (this led to issues when invoking the tool with an OpenAI functions agent, at least for me). Here we add the missing attribute and a minimal test for the tool. - **Issue:** N/A - **Dependencies:** N/A - **Twitter handle:** N/A --------- Co-authored-by: Chester Curme <chestercurme@microsoft.com>
91 lines
2.9 KiB
Python
91 lines
2.9 KiB
Python
"""Send Gmail messages."""
|
|
import base64
|
|
from email.mime.multipart import MIMEMultipart
|
|
from email.mime.text import MIMEText
|
|
from typing import Any, Dict, List, Optional, Type, Union
|
|
|
|
from langchain_core.callbacks import CallbackManagerForToolRun
|
|
from langchain_core.pydantic_v1 import BaseModel, Field
|
|
|
|
from langchain_community.tools.gmail.base import GmailBaseTool
|
|
|
|
|
|
class SendMessageSchema(BaseModel):
|
|
"""Input for SendMessageTool."""
|
|
|
|
message: str = Field(
|
|
...,
|
|
description="The message to send.",
|
|
)
|
|
to: Union[str, List[str]] = Field(
|
|
...,
|
|
description="The list of recipients.",
|
|
)
|
|
subject: str = Field(
|
|
...,
|
|
description="The subject of the message.",
|
|
)
|
|
cc: Optional[Union[str, List[str]]] = Field(
|
|
None,
|
|
description="The list of CC recipients.",
|
|
)
|
|
bcc: Optional[Union[str, List[str]]] = Field(
|
|
None,
|
|
description="The list of BCC recipients.",
|
|
)
|
|
|
|
|
|
class GmailSendMessage(GmailBaseTool):
|
|
"""Tool that sends a message to Gmail."""
|
|
|
|
name: str = "send_gmail_message"
|
|
description: str = (
|
|
"Use this tool to send email messages." " The input is the message, recipients"
|
|
)
|
|
args_schema: Type[SendMessageSchema] = SendMessageSchema
|
|
|
|
def _prepare_message(
|
|
self,
|
|
message: str,
|
|
to: Union[str, List[str]],
|
|
subject: str,
|
|
cc: Optional[Union[str, List[str]]] = None,
|
|
bcc: Optional[Union[str, List[str]]] = None,
|
|
) -> Dict[str, Any]:
|
|
"""Create a message for an email."""
|
|
mime_message = MIMEMultipart()
|
|
mime_message.attach(MIMEText(message, "html"))
|
|
|
|
mime_message["To"] = ", ".join(to if isinstance(to, list) else [to])
|
|
mime_message["Subject"] = subject
|
|
if cc is not None:
|
|
mime_message["Cc"] = ", ".join(cc if isinstance(cc, list) else [cc])
|
|
|
|
if bcc is not None:
|
|
mime_message["Bcc"] = ", ".join(bcc if isinstance(bcc, list) else [bcc])
|
|
|
|
encoded_message = base64.urlsafe_b64encode(mime_message.as_bytes()).decode()
|
|
return {"raw": encoded_message}
|
|
|
|
def _run(
|
|
self,
|
|
message: str,
|
|
to: Union[str, List[str]],
|
|
subject: str,
|
|
cc: Optional[Union[str, List[str]]] = None,
|
|
bcc: Optional[Union[str, List[str]]] = None,
|
|
run_manager: Optional[CallbackManagerForToolRun] = None,
|
|
) -> str:
|
|
"""Run the tool."""
|
|
try:
|
|
create_message = self._prepare_message(message, to, subject, cc=cc, bcc=bcc)
|
|
send_message = (
|
|
self.api_resource.users()
|
|
.messages()
|
|
.send(userId="me", body=create_message)
|
|
)
|
|
sent_message = send_message.execute()
|
|
return f'Message sent. Message Id: {sent_message["id"]}'
|
|
except Exception as error:
|
|
raise Exception(f"An error occurred: {error}")
|