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	This kind of payload that's loaded from json in the body of the request is not only used for webhooks, but also in the push bouncer, and may get used elsewhere too - so a general name is better.
		
			
				
	
	
		
			348 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			348 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
from html.parser import HTMLParser
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from typing import Callable, Dict, List, Tuple
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from django.http import HttpRequest, HttpResponse
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from returns.curry import partial
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from zerver.decorator import return_success_on_head_request, webhook_view
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from zerver.lib.exceptions import UnsupportedWebhookEventTypeError
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from zerver.lib.response import json_success
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from zerver.lib.typed_endpoint import JsonBodyPayload, typed_endpoint
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from zerver.lib.validator import WildValue, check_int, check_none_or, check_string
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from zerver.lib.webhooks.common import check_send_webhook_message
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from zerver.models import UserProfile
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COMPANY_CREATED = """
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New company **{name}** created:
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* **User count**: {user_count}
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* **Monthly spending**: {monthly_spend}
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""".strip()
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CONTACT_EMAIL_ADDED = "New email {email} added to contact."
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CONTACT_CREATED = """
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New contact created:
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* **Name (or pseudonym)**: {name}
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* **Email**: {email}
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* **Location**: {location_info}
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""".strip()
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CONTACT_SIGNED_UP = """
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Contact signed up:
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* **Email**: {email}
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* **Location**: {location_info}
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""".strip()
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CONTACT_TAG_CREATED = "Contact tagged with the `{name}` tag."
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CONTACT_TAG_DELETED = "The tag `{name}` was removed from the contact."
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CONVERSATION_ADMIN_ASSIGNED = "{name} assigned to conversation."
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CONVERSATION_ADMIN_TEMPLATE = "{admin_name} {action} the conversation."
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CONVERSATION_ADMIN_REPLY_TEMPLATE = """
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{admin_name} {action} the conversation:
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``` quote
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{content}
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```
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""".strip()
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CONVERSATION_ADMIN_INITIATED_CONVERSATION = """
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{admin_name} initiated a conversation:
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``` quote
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{content}
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```
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""".strip()
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EVENT_CREATED = "New event **{event_name}** created."
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USER_CREATED = """
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New user created:
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* **Name**: {name}
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* **Email**: {email}
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""".strip()
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class MLStripper(HTMLParser):
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    def __init__(self) -> None:
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        self.reset()
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        self.strict = False
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        self.convert_charrefs = True
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        self.fed: List[str] = []
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    def handle_data(self, d: str) -> None:
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        self.fed.append(d)
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    def get_data(self) -> str:
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        return "".join(self.fed)
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def strip_tags(html: str) -> str:
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    s = MLStripper()
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    s.feed(html)
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    return s.get_data()
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def get_topic_for_contacts(user: WildValue) -> str:
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    topic = "{type}: {name}".format(
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        type=user["type"].tame(check_string).capitalize(),
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        name=user.get("name").tame(check_none_or(check_string))
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        or user.get("pseudonym").tame(check_none_or(check_string))
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        or user.get("email").tame(check_none_or(check_string)),
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    )
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    return topic
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def get_company_created_message(payload: WildValue) -> Tuple[str, str]:
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    body = COMPANY_CREATED.format(
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        name=payload["data"]["item"]["name"].tame(check_string),
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        user_count=payload["data"]["item"]["user_count"].tame(check_int),
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        monthly_spend=payload["data"]["item"]["monthly_spend"].tame(check_int),
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    )
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    return ("Companies", body)
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def get_contact_added_email_message(payload: WildValue) -> Tuple[str, str]:
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    user = payload["data"]["item"]
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    body = CONTACT_EMAIL_ADDED.format(email=user["email"].tame(check_string))
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    topic = get_topic_for_contacts(user)
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    return (topic, body)
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def get_contact_created_message(payload: WildValue) -> Tuple[str, str]:
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    contact = payload["data"]["item"]
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    body = CONTACT_CREATED.format(
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        name=contact.get("name").tame(check_none_or(check_string))
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        or contact.get("pseudonym").tame(check_none_or(check_string)),
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        email=contact["email"].tame(check_string),
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        location_info="{city_name}, {region_name}, {country_name}".format(
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            city_name=contact["location_data"]["city_name"].tame(check_string),
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            region_name=contact["location_data"]["region_name"].tame(check_string),
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            country_name=contact["location_data"]["country_name"].tame(check_string),
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        ),
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    )
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    topic = get_topic_for_contacts(contact)
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    return (topic, body)
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def get_contact_signed_up_message(payload: WildValue) -> Tuple[str, str]:
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    contact = payload["data"]["item"]
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    body = CONTACT_SIGNED_UP.format(
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        email=contact["email"].tame(check_string),
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        location_info="{city_name}, {region_name}, {country_name}".format(
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            city_name=contact["location_data"]["city_name"].tame(check_string),
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            region_name=contact["location_data"]["region_name"].tame(check_string),
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            country_name=contact["location_data"]["country_name"].tame(check_string),
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        ),
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    )
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    topic = get_topic_for_contacts(contact)
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    return (topic, body)
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def get_contact_tag_created_message(payload: WildValue) -> Tuple[str, str]:
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    body = CONTACT_TAG_CREATED.format(
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        name=payload["data"]["item"]["tag"]["name"].tame(check_string)
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    )
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    contact = payload["data"]["item"]["contact"]
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    topic = get_topic_for_contacts(contact)
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    return (topic, body)
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def get_contact_tag_deleted_message(payload: WildValue) -> Tuple[str, str]:
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    body = CONTACT_TAG_DELETED.format(
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        name=payload["data"]["item"]["tag"]["name"].tame(check_string)
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    )
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    contact = payload["data"]["item"]["contact"]
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    topic = get_topic_for_contacts(contact)
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    return (topic, body)
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def get_conversation_admin_assigned_message(payload: WildValue) -> Tuple[str, str]:
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    body = CONVERSATION_ADMIN_ASSIGNED.format(
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        name=payload["data"]["item"]["assignee"]["name"].tame(check_string)
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    )
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    user = payload["data"]["item"]["user"]
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    topic = get_topic_for_contacts(user)
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    return (topic, body)
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def get_conversation_admin_message(
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    payload: WildValue,
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    action: str,
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) -> Tuple[str, str]:
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    assignee = payload["data"]["item"]["assignee"]
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    user = payload["data"]["item"]["user"]
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    body = CONVERSATION_ADMIN_TEMPLATE.format(
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        admin_name=assignee.get("name").tame(check_none_or(check_string)),
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        action=action,
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    )
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    topic = get_topic_for_contacts(user)
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    return (topic, body)
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def get_conversation_admin_reply_message(
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    payload: WildValue,
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    action: str,
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) -> Tuple[str, str]:
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    assignee = payload["data"]["item"]["assignee"]
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    user = payload["data"]["item"]["user"]
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    note = payload["data"]["item"]["conversation_parts"]["conversation_parts"][0]
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    content = strip_tags(note["body"].tame(check_string))
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    body = CONVERSATION_ADMIN_REPLY_TEMPLATE.format(
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        admin_name=assignee.get("name").tame(check_none_or(check_string)),
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        action=action,
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        content=content,
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    )
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    topic = get_topic_for_contacts(user)
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    return (topic, body)
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def get_conversation_admin_single_created_message(payload: WildValue) -> Tuple[str, str]:
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    assignee = payload["data"]["item"]["assignee"]
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    user = payload["data"]["item"]["user"]
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    conversation_body = payload["data"]["item"]["conversation_message"]["body"].tame(check_string)
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    content = strip_tags(conversation_body)
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    body = CONVERSATION_ADMIN_INITIATED_CONVERSATION.format(
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        admin_name=assignee.get("name").tame(check_none_or(check_string)),
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        content=content,
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    )
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    topic = get_topic_for_contacts(user)
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    return (topic, body)
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def get_conversation_user_created_message(payload: WildValue) -> Tuple[str, str]:
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    user = payload["data"]["item"]["user"]
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    conversation_body = payload["data"]["item"]["conversation_message"]["body"].tame(check_string)
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    content = strip_tags(conversation_body)
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    body = CONVERSATION_ADMIN_INITIATED_CONVERSATION.format(
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        admin_name=user.get("name").tame(check_none_or(check_string)),
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        content=content,
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    )
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    topic = get_topic_for_contacts(user)
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    return (topic, body)
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def get_conversation_user_replied_message(payload: WildValue) -> Tuple[str, str]:
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    user = payload["data"]["item"]["user"]
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    note = payload["data"]["item"]["conversation_parts"]["conversation_parts"][0]
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    content = strip_tags(note["body"].tame(check_string))
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    body = CONVERSATION_ADMIN_REPLY_TEMPLATE.format(
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        admin_name=user.get("name").tame(check_none_or(check_string)),
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        action="replied to",
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        content=content,
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    )
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    topic = get_topic_for_contacts(user)
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    return (topic, body)
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def get_event_created_message(payload: WildValue) -> Tuple[str, str]:
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    event = payload["data"]["item"]
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    body = EVENT_CREATED.format(event_name=event["event_name"].tame(check_string))
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    return ("Events", body)
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def get_user_created_message(payload: WildValue) -> Tuple[str, str]:
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    user = payload["data"]["item"]
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    body = USER_CREATED.format(
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        name=user["name"].tame(check_string), email=user["email"].tame(check_string)
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    )
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    topic = get_topic_for_contacts(user)
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    return (topic, body)
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def get_user_deleted_message(payload: WildValue) -> Tuple[str, str]:
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    user = payload["data"]["item"]
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    topic = get_topic_for_contacts(user)
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    return (topic, "User deleted.")
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def get_user_email_updated_message(payload: WildValue) -> Tuple[str, str]:
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    user = payload["data"]["item"]
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    body = "User's email was updated to {}.".format(user["email"].tame(check_string))
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    topic = get_topic_for_contacts(user)
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    return (topic, body)
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def get_user_tagged_message(
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    payload: WildValue,
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    action: str,
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) -> Tuple[str, str]:
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    user = payload["data"]["item"]["user"]
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    tag = payload["data"]["item"]["tag"]
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    topic = get_topic_for_contacts(user)
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    body = "The tag `{tag_name}` was {action} the user.".format(
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        tag_name=tag["name"].tame(check_string),
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        action=action,
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    )
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    return (topic, body)
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def get_user_unsubscribed_message(payload: WildValue) -> Tuple[str, str]:
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    user = payload["data"]["item"]
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    body = "User unsubscribed from emails."
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    topic = get_topic_for_contacts(user)
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    return (topic, body)
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EVENT_TO_FUNCTION_MAPPER: Dict[str, Callable[[WildValue], Tuple[str, str]]] = {
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    "company.created": get_company_created_message,
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    "contact.added_email": get_contact_added_email_message,
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    "contact.created": get_contact_created_message,
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    "contact.signed_up": get_contact_signed_up_message,
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    "contact.tag.created": get_contact_tag_created_message,
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    "contact.tag.deleted": get_contact_tag_deleted_message,
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    "conversation.admin.assigned": get_conversation_admin_assigned_message,
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    "conversation.admin.closed": partial(get_conversation_admin_message, action="closed"),
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    "conversation.admin.opened": partial(get_conversation_admin_message, action="opened"),
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    "conversation.admin.snoozed": partial(get_conversation_admin_message, action="snoozed"),
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    "conversation.admin.unsnoozed": partial(get_conversation_admin_message, action="unsnoozed"),
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    "conversation.admin.replied": partial(
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        get_conversation_admin_reply_message, action="replied to"
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    ),
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    "conversation.admin.noted": partial(
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        get_conversation_admin_reply_message, action="added a note to"
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    ),
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    "conversation.admin.single.created": get_conversation_admin_single_created_message,
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    "conversation.user.created": get_conversation_user_created_message,
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    "conversation.user.replied": get_conversation_user_replied_message,
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    "event.created": get_event_created_message,
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    "user.created": get_user_created_message,
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    "user.deleted": get_user_deleted_message,
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    "user.email.updated": get_user_email_updated_message,
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    "user.tag.created": partial(get_user_tagged_message, action="added to"),
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    "user.tag.deleted": partial(get_user_tagged_message, action="removed from"),
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    "user.unsubscribed": get_user_unsubscribed_message,
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    # Note that we do not have a payload for visitor.signed_up
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    # but it should be identical to contact.signed_up
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    "visitor.signed_up": get_contact_signed_up_message,
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}
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ALL_EVENT_TYPES = list(EVENT_TO_FUNCTION_MAPPER.keys())
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@webhook_view("Intercom", all_event_types=ALL_EVENT_TYPES)
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# Intercom sends a HEAD request to validate the webhook URL. In this case, we just assume success.
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@return_success_on_head_request
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@typed_endpoint
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def api_intercom_webhook(
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    request: HttpRequest,
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    user_profile: UserProfile,
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    *,
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    payload: JsonBodyPayload[WildValue],
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) -> HttpResponse:
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    event_type = payload["topic"].tame(check_string)
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    if event_type == "ping":
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        return json_success(request)
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    handler = EVENT_TO_FUNCTION_MAPPER.get(event_type)
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    if handler is None:
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        raise UnsupportedWebhookEventTypeError(event_type)
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    topic, body = handler(payload)
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    check_send_webhook_message(request, user_profile, topic, body, event_type)
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    return json_success(request)
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