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Resend email #206
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,360 @@ | ||
| import json | ||
| import logging | ||
| import os | ||
| from dataclasses import dataclass | ||
| from typing import Dict, Any, List, Optional | ||
|
|
||
| import gql | ||
| import httpx | ||
|
|
||
| from flexus_client_kit import ckit_bot_exec, ckit_bot_query, ckit_client, ckit_cloudtool | ||
|
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||
| logger = logging.getLogger("resend") | ||
|
|
||
| RESEND_API_KEY = os.environ.get("RESEND_API_KEY", "") | ||
| RESEND_TESTING_DOMAIN = os.environ.get("RESEND_TESTING_DOMAIN", "") | ||
| RESEND_BASE = "https://api.resend.com" | ||
|
|
||
| RESEND_SETUP_SCHEMA = [ | ||
| { | ||
| "bs_name": "DOMAINS", | ||
| "bs_type": "string_multiline", | ||
| "bs_default": "{}", | ||
| "bs_group": "Email", | ||
| "bs_importance": 0, | ||
| "bs_description": 'Registered domains, e.g. {"mail.example.com": "d_abc123"}. Send and receive emails from these domains. Incoming emails are logged as CRM activities.', | ||
| }, | ||
| ] | ||
|
|
||
| RESEND_PROMPT = f"""## Email | ||
|
|
||
| Use email() tool to send emails and help users register their own domain for sending and receiving. Call email(op="help") first. | ||
| Users can configure EMAIL_RESPOND_TO addresses — emails to those addresses are handled as tasks, all others are logged as CRM activities. | ||
| Strongly recommend using a subdomain (e.g. mail.example.com) instead of the main domain. | ||
| If no domain is configured, send from *@{RESEND_TESTING_DOMAIN} for testing. | ||
| Never use flexus_my_setup() for email domains — they are saved automatically via email() tool.""" | ||
|
|
||
| RESEND_TOOL = ckit_cloudtool.CloudTool( | ||
| strict=False, | ||
| name="email", | ||
| description="Send and receive email, call with op=\"help\" for usage", | ||
| parameters={ | ||
| "type": "object", | ||
| "properties": { | ||
| "op": {"type": "string", "description": "Start with 'help' for usage"}, | ||
| "args": {"type": "object"}, | ||
| }, | ||
| "required": [] | ||
| }, | ||
| ) | ||
|
|
||
| HELP = """Help: | ||
|
|
||
| email(op="send", args={ | ||
| "from": "Name <noreply@yourdomain.com>", | ||
| "to": "recipient@example.com", | ||
| "subject": "Hello", | ||
| "html": "<p>HTML body</p>", | ||
| "text": "Plain text fallback", # optional if html provided | ||
| "cc": "cc@example.com", # optional, comma-separated | ||
| "bcc": "bcc@example.com", # optional, comma-separated | ||
| "reply_to": "reply@example.com", # optional | ||
| }) | ||
|
|
||
| email(op="add_domain", args={"domain": "yourdomain.com", "region": "us-east-1"}) | ||
| Register your own domain. Returns DNS records you need to configure. | ||
| Ask the user which region they prefer before calling. | ||
| Regions: us-east-1, eu-west-1, sa-east-1, ap-northeast-1. | ||
|
|
||
| email(op="verify_domain", args={"domain_id": "..."}) | ||
| Trigger verification after adding DNS records. May take a few minutes. | ||
|
|
||
| email(op="domain_status", args={"domain_id": "..."}) | ||
| Check verification status and DNS records. | ||
|
|
||
| email(op="list_domains") | ||
| List all registered domains and their verification status. | ||
|
|
||
| Notes: | ||
| - "from" and "to" are required for send. "to" can be comma-separated. | ||
| - Provide "html" and/or "text". At least one is required. | ||
| """ | ||
|
|
||
|
|
||
| @dataclass | ||
| class ActivityEmail: | ||
| email_id: str | ||
| from_addr: str | ||
| to_addrs: List[str] | ||
| cc_addrs: List[str] | ||
| bcc_addrs: List[str] | ||
| subject: str | ||
| body_text: str | ||
| body_html: str | ||
|
|
||
|
|
||
| def _help_text(has_domains: bool) -> str: | ||
| if not has_domains and RESEND_TESTING_DOMAIN: | ||
| return HELP + f"- No domains configured yet. Send from @{RESEND_TESTING_DOMAIN} in the meantime.\n" | ||
| return HELP | ||
|
|
||
|
|
||
| def _format_dns_records(records) -> str: | ||
| if not records: | ||
| return " (none)" | ||
| lines = [] | ||
| for rec in records: | ||
| lines.append(f" {rec['record']} {rec['type']} {rec['name']} -> {rec['value']} [{rec['status']}]") | ||
| return "\n".join(lines) | ||
|
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||
|
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||
| async def _check_dns_txt(domain: str, expected: str) -> bool: | ||
| try: | ||
| async with httpx.AsyncClient(timeout=5) as c: | ||
| r = await c.get(f"https://dns.google/resolve?name={domain}&type=TXT") | ||
| return any(expected in a.get("data", "") for a in r.json().get("Answer", [])) | ||
| except Exception as e: | ||
| logger.warning("DNS TXT check failed for %s: %s", domain, e) | ||
| return False | ||
|
|
||
|
|
||
| async def _resend_request(method: str, path: str, json_body: Optional[Dict] = None) -> httpx.Response: | ||
| async with httpx.AsyncClient(timeout=30) as c: | ||
| return await c.request(method, f"{RESEND_BASE}{path}", headers={"Authorization": f"Bearer {RESEND_API_KEY}"}, json=json_body) | ||
|
|
||
|
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||
| def parse_emessage(emsg: ckit_bot_query.FExternalMessageOutput) -> ActivityEmail: | ||
| payload = emsg.emsg_payload if isinstance(emsg.emsg_payload, dict) else json.loads(emsg.emsg_payload) | ||
| content = payload.get("email_content", {}) | ||
| data = payload.get("data", {}) | ||
| return ActivityEmail( | ||
| email_id=data.get("email_id", emsg.emsg_external_id), | ||
| from_addr=emsg.emsg_from or data.get("from", ""), | ||
| to_addrs=data.get("to", []), | ||
| cc_addrs=data.get("cc", []), | ||
| bcc_addrs=data.get("bcc", []), | ||
| subject=content.get("subject", data.get("subject", "")), | ||
| body_text=content.get("text", ""), | ||
| body_html=content.get("html", ""), | ||
| ) | ||
|
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||
|
|
||
| async def register_email_addresses( | ||
| fclient: ckit_client.FlexusClient, | ||
| rcx: ckit_bot_exec.RobotContext, | ||
| email_addresses: List[str], | ||
| ) -> None: | ||
| txt_val = f"flexus-verify={rcx.persona.ws_id}" | ||
| verified = [] | ||
| for a in email_addresses: | ||
| domain = a.rsplit("@", 1)[1] if "@" in a else a | ||
| if RESEND_TESTING_DOMAIN and domain == RESEND_TESTING_DOMAIN: | ||
| verified.append(a) | ||
| elif await _check_dns_txt(domain, txt_val): | ||
| verified.append(a) | ||
| else: | ||
| logger.warning("address %s failed TXT ownership check, not registering", a) | ||
| if not verified: | ||
| return | ||
| http = await fclient.use_http() | ||
| async with http as h: | ||
| await h.execute( | ||
| gql.gql("""mutation ResendRegister($persona_id: String!, $channel: String!, $addresses: [String!]!) { | ||
| persona_set_external_addresses(persona_id: $persona_id, channel: $channel, addresses: $addresses) | ||
| }"""), | ||
| variable_values={ | ||
| "persona_id": rcx.persona.persona_id, | ||
| "channel": "EMAIL", | ||
| "addresses": [f"EMAIL:{a}" for a in verified], | ||
| }, | ||
| ) | ||
| logger.info("registered email addresses %s for persona %s", verified, rcx.persona.persona_id) | ||
|
|
||
|
|
||
| class IntegrationResend: | ||
|
|
||
| def __init__(self, fclient: ckit_client.FlexusClient, rcx: ckit_bot_exec.RobotContext, domains: Dict[str, str], emails_to_register: set): | ||
| self.fclient = fclient | ||
| self.rcx = rcx | ||
| self.domains = domains # {"domain.com": "resend_domain_id"} | ||
| self.emails_to_register = emails_to_register | ||
|
|
||
| async def called_by_model(self, toolcall: ckit_cloudtool.FCloudtoolCall, model_produced_args: Optional[Dict[str, Any]]): | ||
| if not model_produced_args: | ||
| return _help_text(bool(self.domains)) | ||
|
|
||
| op = model_produced_args.get("op", "") | ||
| args, args_error = ckit_cloudtool.sanitize_args(model_produced_args) | ||
| if args_error: | ||
| return args_error | ||
|
|
||
| if not op or "help" in op: | ||
| return _help_text(bool(self.domains)) | ||
| if op == "send": | ||
| return await self._send(args, model_produced_args) | ||
| if op == "add_domain": | ||
| return await self._add_domain(args, model_produced_args) | ||
| if op == "verify_domain": | ||
| return await self._verify_domain(args, model_produced_args) | ||
| if op == "domain_status": | ||
| return await self._domain_status(args, model_produced_args) | ||
| if op == "list_domains": | ||
| return await self._list_domains() | ||
|
|
||
| return f"Unknown operation: {op}\n\nTry email(op='help') for usage." | ||
|
|
||
| async def _send(self, args: Dict[str, Any], model_produced_args: Dict[str, Any]): | ||
| frm = ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "from", None) | ||
| to = ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "to", None) | ||
| if not frm or not to: | ||
| return "Missing required: 'from' and 'to'" | ||
| html = ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "html", "") | ||
| text = ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "text", "") | ||
| if not html and not text: | ||
| return "Provide 'html' and/or 'text'" | ||
|
|
||
| params: Dict[str, Any] = { | ||
| "from": frm, | ||
| "to": [e.strip() for e in to.split(",")], | ||
| "subject": ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "subject", ""), | ||
| } | ||
| if html: | ||
| params["html"] = html | ||
| if text: | ||
| params["text"] = text | ||
| cc = ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "cc", None) | ||
| bcc = ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "bcc", None) | ||
| reply_to = ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "reply_to", None) | ||
| if cc: | ||
| params["cc"] = [e.strip() for e in cc.split(",")] | ||
| if bcc: | ||
| params["bcc"] = [e.strip() for e in bcc.split(",")] | ||
| if reply_to: | ||
| params["reply_to"] = reply_to | ||
|
|
||
| n_recipients = len(params["to"]) + len(params.get("cc", [])) + len(params.get("bcc", [])) | ||
| r = await _resend_request("POST", "/emails", params) | ||
| if r.status_code == 200: | ||
| rid = r.json().get("id", "") | ||
| logger.info("sent email %s to %s", rid, to) | ||
| return ckit_cloudtool.ToolResult(content=f"Email sent (id: {rid})", dollars=0.0009 * n_recipients) | ||
| logger.error("resend send error: %s %s", r.status_code, r.text[:200]) | ||
| return "Internal error sending email, please try again later" | ||
|
|
||
| async def _add_domain(self, args: Dict[str, Any], model_produced_args: Dict[str, Any]) -> str: | ||
| if not (domain := ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "domain", None)): | ||
| return "Missing required: 'domain'" | ||
| if len(self.domains) >= 20: | ||
| return "Domain limit reached (20). Remove unused domains before adding new ones." | ||
|
|
||
| region = ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "region", "us-east-1") | ||
| if region not in ("us-east-1", "eu-west-1", "sa-east-1", "ap-northeast-1"): | ||
| return "Invalid region. Must be one of: us-east-1, eu-west-1, sa-east-1, ap-northeast-1." | ||
|
|
||
| r = await _resend_request("POST", "/domains", { | ||
| "name": domain, | ||
| "region": region, | ||
| "open_tracking": False, | ||
| "click_tracking": True, | ||
| "capabilities": {"sending": "enabled", "receiving": "enabled"}, | ||
| }) | ||
| if r.status_code == 200 or r.status_code == 201: | ||
| d = r.json() | ||
| elif "already" in r.text.lower(): | ||
| # Resend does not support find domain without listing all | ||
| lr = await _resend_request("GET", "/domains") | ||
| d = None | ||
| if lr.status_code == 200: | ||
| for item in lr.json().get("data", []): | ||
| if item["name"] == domain: | ||
| d = item | ||
| break | ||
| if not d: | ||
| return f"Domain {domain} already exists in Resend but could not retrieve it." | ||
| else: | ||
| logger.error("resend add domain error: %s %s", r.status_code, r.text[:200]) | ||
| return f"Failed to add domain: {r.text[:200]}" | ||
|
|
||
| self.domains[domain] = d["id"] | ||
| await self._save_domains() | ||
| txt_val = f"flexus-verify={self.rcx.persona.ws_id}" | ||
| logger.info("resend domain %s id=%s", domain, d["id"]) | ||
| return ( | ||
| f"Domain: {domain}\n" | ||
| f"domain_id: {d['id']}\n" | ||
| f"status: {d.get('status', 'pending')}\n\n" | ||
| f"DNS records:\n{_format_dns_records(d.get('records'))}\n" | ||
| f" TXT {domain} -> {txt_val} (ownership verification)\n\n" | ||
| f"After adding records, call verify_domain with domain_id=\"{d['id']}\".\n" | ||
| f"DNS propagation can take minutes to hours." | ||
| ) | ||
|
|
||
| async def _verify_domain(self, args: Dict[str, Any], model_produced_args: Dict[str, Any]) -> str: | ||
| domain_id = ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "domain_id", None) | ||
| if not domain_id: | ||
| return "Missing required: 'domain_id'" | ||
|
|
||
| gr = await _resend_request("GET", f"/domains/{domain_id}") | ||
| if gr.status_code != 200: | ||
| logger.error("resend get domain error: %s %s", gr.status_code, gr.text[:200]) | ||
| return "Failed to get domain info" | ||
| d = gr.json() | ||
| txt_val = f"flexus-verify={self.rcx.persona.ws_id}" | ||
| if not await _check_dns_txt(d["name"], txt_val): | ||
| return f"TXT record '{txt_val}' not found for {d['name']}. DNS may still be propagating, try again later." | ||
| await _resend_request("POST", f"/domains/{domain_id}/verify") | ||
| msg = "Verification triggered. Check domain_status for results." | ||
| if domain_id not in self.domains.values(): | ||
| self.domains[d["name"]] = domain_id | ||
| await self._save_domains() | ||
| msg += f"\nDomain {d['name']} added to setup." | ||
| await register_email_addresses(self.fclient, self.rcx, | ||
| [f"*@{dom}" for dom in self.domains] + list(self.emails_to_register)) | ||
| return msg | ||
|
|
||
| async def _domain_status(self, args: Dict[str, Any], model_produced_args: Dict[str, Any]) -> str: | ||
| domain_id = ckit_cloudtool.try_best_to_find_argument(args, model_produced_args, "domain_id", None) | ||
| if not domain_id: | ||
| return "Missing required: 'domain_id'" | ||
|
|
||
| r = await _resend_request("GET", f"/domains/{domain_id}") | ||
| if r.status_code != 200: | ||
| logger.error("resend domain status error: %s %s", r.status_code, r.text[:200]) | ||
| return "Failed to get domain status" | ||
| d = r.json() | ||
| txt_val = f"flexus-verify={self.rcx.persona.ws_id}" | ||
| txt_ok = await _check_dns_txt(d["name"], txt_val) | ||
| out = f"Domain: {d['name']}\n" | ||
| if not txt_ok: | ||
| out += f"ownership: NOT VERIFIED — add TXT record: {d['name']} -> {txt_val}, then call verify_domain. Domain cannot be used until verified.\n" | ||
| else: | ||
| out += "ownership: verified\n" | ||
| out += f"resend status: {d['status']}\n\nDNS records:\n{_format_dns_records(d.get('records'))}" | ||
| return out | ||
|
|
||
| async def _list_domains(self) -> str: | ||
| if not self.domains: | ||
| return "No domains registered." | ||
| lines = [] | ||
| for domain, domain_id in self.domains.items(): | ||
| r = await _resend_request("GET", f"/domains/{domain_id}") | ||
| if r.status_code == 200: | ||
| d = r.json() | ||
| lines.append(f" {d['name']} (id: {d['id']}) [{d['status']}]") | ||
| else: | ||
| lines.append(f" {domain} (id: {domain_id}) [error fetching status]") | ||
| return "Domains:\n" + "\n".join(lines) | ||
|
|
||
| async def _save_domains(self): | ||
| http = await self.fclient.use_http() | ||
| async with http as h: | ||
| await h.execute( | ||
| gql.gql("""mutation SaveResendDomains($persona_id: String!, $set_key: String!, $set_val: String) { | ||
| persona_setup_set_key(persona_id: $persona_id, set_key: $set_key, set_val: $set_val) | ||
| }"""), | ||
| variable_values={ | ||
| "persona_id": self.rcx.persona.persona_id, | ||
| "set_key": "DOMAINS", | ||
| "set_val": json.dumps(self.domains), | ||
| }, | ||
| ) | ||
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https://resend.com/docs/knowledge-base/account-quotas-and-limits
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https://resend.com/docs/knowledge-base/setting-up-resend-for-multi-tenants#setting-up-resend-for-multi-tenant-applications