feat(msgext-search-python): add msgext-search python app

msgext-search-python/.gitignore

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+# TeamsFx files
+env/.env.*.user
+env/.env.local
+appPackage/build/
+
+# python virtual environment
+.venv/
+
+# misc
+.env
+.deployment/
+
+# tmp files
+__pycache__/

msgext-search-python/.vscode/extensions.json

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+{
+    "recommendations": [
+        "TeamsDevApp.ms-teams-vscode-extension",
+        "ms-python.python",
+    ]
+}

msgext-search-python/.vscode/launch.json

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+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch App (Edge)",
+            "type": "msedge",
+            "request": "launch",
+            "url": "https://teams.microsoft.com/l/app/${{local:TEAMS_APP_ID}}?installAppPackage=true&webjoin=true&${account-hint}",
+            "cascadeTerminateToConfigurations": [
+                "Python: Run App Locally"
+            ],
+            "presentation": {
+                "group": "all",
+                "hidden": true
+            },
+            "internalConsoleOptions": "neverOpen"
+        },
+        {
+            "name": "Launch App (Chrome)",
+            "type": "chrome",
+            "request": "launch",
+            "url": "https://teams.microsoft.com/l/app/${{local:TEAMS_APP_ID}}?installAppPackage=true&webjoin=true&${account-hint}",
+            "cascadeTerminateToConfigurations": [
+                "Python: Run App Locally"
+            ],
+            "presentation": {
+                "group": "all",
+                "hidden": true
+            },
+            "internalConsoleOptions": "neverOpen"
+        },
+        {
+            "name": "Python: Run App Locally",
+            "type": "python",
+            "request": "launch",
+            "program": "${workspaceFolder}/app.py",
+            "cwd": "${workspaceFolder}",
+            "console": "integratedTerminal",
+        }
+    ],
+    "compounds": [
+        {
+            "name": "Debug (Edge)",
+            "configurations": [
+                "Launch App (Edge)",
+                "Python: Run App Locally"
+            ],
+            "preLaunchTask": "Prepare Teams App Resources",
+            "presentation": {
+                "group": "all",
+                "order": 1
+            },
+            "stopAll": true
+        },
+        {
+            "name": "Debug (Chrome)",
+            "configurations": [
+                "Launch App (Chrome)",
+                "Python: Run App Locally"
+            ],
+            "preLaunchTask": "Prepare Teams App Resources",
+            "presentation": {
+                "group": "all",
+                "order": 2
+            },
+            "stopAll": true
+        }
+    ]
+}

msgext-search-python/.vscode/settings.json

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+{
+    "debug.onTaskErrors": "abort"
+}

msgext-search-python/.vscode/tasks.json

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+// This file is automatically generated by Teams Toolkit.
+// The teamsfx tasks defined in this file require Teams Toolkit version >= 5.0.0.
+// See https://aka.ms/teamsfx-tasks for details on how to customize each task.
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "Prepare Teams App Resources",
+            "dependsOn": [
+                "Validate prerequisites",
+                "Start local tunnel",
+                "Provision",
+                "Deploy"
+            ],
+            "dependsOrder": "sequence"
+        },
+        {
+            // Check all required prerequisites.
+            // See https://aka.ms/teamsfx-tasks/check-prerequisites to know the details and how to customize the args.
+            "label": "Validate prerequisites",
+            "type": "teamsfx",
+            "command": "debug-check-prerequisites",
+            "args": {
+                "prerequisites": [
+                    "m365Account", // Sign-in prompt for Microsoft 365 account, then validate if the account enables the sideloading permission.
+                    "portOccupancy" // Validate available ports to ensure those debug ones are not occupied.
+                ],
+                "portOccupancy": [
+                    3978, // app service port
+                ]
+            }
+        },
+        {
+            // Start the local tunnel service to forward public URL to local port and inspect traffic.
+            // See https://aka.ms/teamsfx-tasks/local-tunnel for the detailed args definitions.
+            "label": "Start local tunnel",
+            "type": "teamsfx",
+            "command": "debug-start-local-tunnel",
+            "args": {
+                "type": "dev-tunnel",
+                "ports": [
+                    {
+                        "portNumber": 3978,
+                        "protocol": "http",
+                        "access": "public",
+                        "writeToEnvironmentFile": {
+                            "endpoint": "BOT_ENDPOINT", // output tunnel endpoint as BOT_ENDPOINT
+                            "domain": "BOT_DOMAIN" // output tunnel domain as BOT_DOMAIN
+                        }
+                    }
+                ],
+                "env": "local"
+            },
+            "isBackground": true,
+            "problemMatcher": "$teamsfx-local-tunnel-watch"
+        },
+        {
+            // Create the debug resources.
+            // See https://aka.ms/teamsfx-tasks/provision to know the details and how to customize the args.
+            "label": "Provision",
+            "type": "teamsfx",
+            "command": "provision",
+            "args": {
+                "env": "local"
+            }
+        },
+        {
+            // Build project.
+            // See https://aka.ms/teamsfx-tasks/deploy to know the details and how to customize the args.
+            "label": "Deploy",
+            "type": "teamsfx",
+            "command": "deploy",
+            "args": {
+                "env": "local"
+            }
+        }
+    ]
+}

msgext-search-python/README.md

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+---
+page_type: sample
+description: This sample app demonstrate how to use Messaging Extensions Search
+products:
+- office-teams
+- office
+- office-365
+languages:
+- python
+extensions:
+ contentType: samples
+ createdDate: "12-12-2019 13:38:25"
+urlFragment: officedev-microsoft-teams-samples-bot-message-extension-python
+
+---
+
+# Teams Messaging Extensions Search
+
+[Messaging Extensions](https://docs.microsoft.com/microsoftteams/platform/messaging-extensions/what-are-messaging-extensions) are a special kind of Microsoft Teams application that is support by the [Bot Framework](https://dev.botframework.com) v4.
+
+There are two basic types of Messaging Extension in Teams: [Search-based](https://docs.microsoft.com/microsoftteams/platform/messaging-extensions/how-to/search-commands/define-search-command) and [Action-based](https://docs.microsoft.com/microsoftteams/platform/messaging-extensions/how-to/action-commands/define-action-command). This sample illustrates how to
+build a Search-based Messaging Extension.
+
+## Included Features
+* Bots
+* Message Extensions
+* Search Commands
+
+## Interaction with Messaging Extension
+![msgext-search ](Images/msgext-search.gif)
+
+## Try it yourself - experience the App in your Microsoft Teams client
+Please find below demo manifest which is deployed on Microsoft Azure and you can try it yourself by uploading the app package (.zip file link below) to your teams and/or as a personal app. (Sideloading must be enabled for your tenant, [see steps here](https://docs.microsoft.com/microsoftteams/platform/concepts/build-and-test/prepare-your-o365-tenant#enable-custom-teams-apps-and-turn-on-custom-app-uploading)).
+
+**Teams Messaging Extensions Search:** [Manifest](/samples/msgext-search/csharp/demo-manifest/msgext-search.zip)
+
+## Prerequisites
+
+- Microsoft Teams is installed and you have an account
+- [Python SDK](https://www.python.org/downloads/) version 3.7
+- [dev tunnel](https://learn.microsoft.com/en-us/azure/developer/dev-tunnels/get-started?tabs=windows) or [ngrok](https://ngrok.com/) latest version or equivalent tunnelling solution
+
+
+## To try this sample
+
+## Run the app (Using Teams Toolkit for Visual Studio Code)
+
+The simplest way to run this sample in Teams is to use Teams Toolkit for Visual Studio Code.
+
+1. Ensure you have downloaded and installed [Visual Studio Code](https://code.visualstudio.com/docs/setup/setup-overview)
+1. Install the [Teams Toolkit extension](https://marketplace.visualstudio.com/items?itemName=TeamsDevApp.ms-teams-vscode-extension) and [Python Extension](https://marketplace.visualstudio.com/items?itemName=ms-python.python)
+1. Select **File > Open Folder** in VS Code and choose this samples directory from the repo
+1. Press **CTRL+Shift+P** to open the command box and enter **Python: Create Environment** to create and activate your desired virtual environment. Remember to select `requirements.txt` as dependencies to install when creating the virtual environment.
+1. Using the extension, sign in with your Microsoft 365 account where you have permissions to upload custom apps
+1. Select **Debug > Start Debugging** or **F5** to run the app in a Teams web client.
+1. In the browser that launches, select the **Add** button to install the app to Teams.
+
+> If you do not have permission to upload custom apps (sideloading), Teams Toolkit will recommend creating and using a Microsoft 365 Developer Program account - a free program to get your own dev environment sandbox that includes Teams.
+
+## Run the app (Manually Uploading to Teams)
+
+> Note these instructions are for running the sample on your local machine, the tunnelling solution is required because
+the Teams service needs to call into the bot.
+
+1) Clone the repository
+
+    ```bash
+    git clone https://github.com/OfficeDev/Microsoft-Teams-Samples.git
+    ```
+
+1) Run ngrok - point to port 3978
+
+   ```bash
+   ngrok http 3978 --host-header="localhost:3978"
+   ```  
+
+   Alternatively, you can also use the `dev tunnels`. Please follow [Create and host a dev tunnel](https://learn.microsoft.com/en-us/azure/developer/dev-tunnels/get-started?tabs=windows) and host the tunnel with anonymous user access command as shown below:
+
+   ```bash
+   devtunnel host -p 3978 --allow-anonymous
+   ```
+
+1) Create [Bot Framework registration resource](https://docs.microsoft.com/azure/bot-service/bot-service-quickstart-registration) in Azure
+    - Use the current `https` URL you were given by running the tunnelling application. Append with the path `/api/messages` used by this sample
+    - Ensure that you've [enabled the Teams Channel](https://docs.microsoft.com/azure/bot-service/channel-connect-teams?view=azure-bot-service-4.0)
+    - __*If you don't have an Azure account*__ you can use this [Bot Framework registration](https://docs.microsoft.com/microsoftteams/platform/bots/how-to/create-a-bot-for-teams#register-your-web-service-with-the-bot-framework)
+
+1) Bring up a terminal, navigate to `Microsoft-Teams-Samples\samples\msgext-search\python` folder
+
+1) Activate your desired virtual environment
+
+1) Install dependencies by running ```pip install -r requirements.txt``` in the project folder.
+
+1) Update the `config.py` configuration for the bot to use the Microsoft App Id and App Password from the Bot Framework registration. (Note the App Password is referred to as the "client secret" in the azure portal and you can always create a new client secret anytime.)
+
+1) __*This step is specific to Teams.*__
+    - **Edit** the `manifest.json` contained in the `appPackage` folder to replace your Microsoft App Id (that was created when you registered your bot earlier) *everywhere* you see the place holder string `${{AAD_APP_CLIENT_ID}}` and `${{TEAMS_APP_ID}}` (depending on the scenario the Microsoft App Id may occur multiple times in the `manifest.json`)
+    - **Zip** up the contents of the `appPackage` folder to create a `manifest.zip`
+    - **Upload** the `manifest.zip` to Teams (in the Apps view click "Upload a custom app")
+
+1) Run your bot with `python app.py`
+
+## Interacting with the bot in Teams
+
+> Note this `manifest.json` specified that the feature will be available from both the `compose` and `commandBox` areas of Teams. Please refer to Teams documentation for more details.
+
+In Teams, the command bar is located at the top of the window. When you at mention the bot what you type is forwarded (as you type) to the bot for processing. By way of illustration, this sample uses the text it receives to query the NuGet package store.
+
+There is a secondary, drill down, event illustrated in this sample: clicking on the results from the initial query will result in the bot receiving another event.
+
+## Deploy the bot to Azure
+
+To learn more about deploying a bot to Azure, see [Deploy your bot to Azure](https://aka.ms/azuredeployment) for a complete list of deployment instructions.
+
+# Further reading
+
+- [Search based messaging extension](https://learn.microsoft.com/microsoftteams/platform/messaging-extensions/how-to/search-commands/define-search-command)
+- [Bot Framework Documentation](https://docs.botframework.com)
+- [Bot Basics](https://docs.microsoft.com/azure/bot-service/bot-builder-basics?view=azure-bot-service-4.0)
+- [Azure Bot Service Introduction](https://docs.microsoft.com/azure/bot-service/bot-service-overview-introduction?view=azure-bot-service-4.0)
+- [Azure Bot Service Documentation](https://docs.microsoft.com/azure/bot-service/?view=azure-bot-service-4.0)
+
+<img src="https://pnptelemetry.azurewebsites.net/microsoft-teams-samples/samples/msgext-search-python" />

msgext-search-python/app.py

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+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+import sys
+import traceback
+from datetime import datetime
+from http import HTTPStatus
+
+from aiohttp import web
+from aiohttp.web import Request, Response, json_response
+
+from botbuilder.core import (
+    BotFrameworkAdapterSettings,
+    TurnContext,
+    BotFrameworkAdapter,
+)
+from botbuilder.core.integration import aiohttp_error_middleware
+
+from botbuilder.schema import Activity, ActivityTypes
+from bots import SearchBasedMessagingExtension
+from config import DefaultConfig
+
+CONFIG = DefaultConfig()
+
+# Create adapter.
+# See https://aka.ms/about-bot-adapter to learn more about how bots work.
+SETTINGS = BotFrameworkAdapterSettings(CONFIG.APP_ID, CONFIG.APP_PASSWORD)
+ADAPTER = BotFrameworkAdapter(SETTINGS)
+
+# Catch-all for errors.
+async def on_error(context: TurnContext, error: Exception):
+    # This check writes out errors to console log .vs. app insights.
+    # NOTE: In production environment, you should consider logging this to Azure
+    #       application insights.
+    print(f"\n [on_turn_error] unhandled error: {error}", file=sys.stderr)
+    traceback.print_exc()
+
+    # Send a message to the user
+    await context.send_activity("The bot encountered an error or bug.")
+    await context.send_activity(
+        "To continue to run this bot, please fix the bot source code."
+    )
+    # Send a trace activity if we're talking to the Bot Framework Emulator
+    if context.activity.channel_id == "emulator":
+        # Create a trace activity that contains the error object
+        trace_activity = Activity(
+            label="TurnError",
+            name="on_turn_error Trace",
+            timestamp=datetime.utcnow(),
+            type=ActivityTypes.trace,
+            value=f"{error}",
+            value_type="https://www.botframework.com/schemas/error",
+        )
+
+        # Send a trace activity, which will be displayed in Bot Framework Emulator
+        await context.send_activity(trace_activity)
+
+
+ADAPTER.on_turn_error = on_error
+
+# Create the Bot
+BOT = SearchBasedMessagingExtension()
+
+
+# Listen for incoming requests on /api/messages
+async def messages(req: Request) -> Response:
+    # Main bot message handler.
+    if "application/json" in req.headers["Content-Type"]:
+        body = await req.json()
+    else:
+        return Response(status=HTTPStatus.UNSUPPORTED_MEDIA_TYPE)
+
+    activity = Activity().deserialize(body)
+    auth_header = req.headers["Authorization"] if "Authorization" in req.headers else ""
+
+    response = await ADAPTER.process_activity(activity, auth_header, BOT.on_turn)
+    if response:
+        return json_response(data=response.body, status=response.status)
+    return Response(status=HTTPStatus.OK)
+
+
+APP = web.Application(middlewares=[aiohttp_error_middleware])
+APP.router.add_post("/api/messages", messages)
+
+if __name__ == "__main__":
+    try:
+        web.run_app(APP, host="localhost", port=CONFIG.PORT)
+    except Exception as error:
+        raise error