Sean Whalen eaeea4f53d Make the whole codebase pass pyright cleanly and enforce it in CI (#798)
* Make the whole codebase pass pyright cleanly and enforce it in CI

Fix all 102 pyright (1.1.410, standard mode) errors across the library,
tests, and maps scripts, then pin and enforce the zero-errors bar:

- postgres.py: make the optional psycopg import TYPE_CHECKING-aware so
  the module is properly typed while keeping the runtime install-hint
  fallback; import psycopg.types.json explicitly as psycopg_json (the
  old psycopg_types.json attribute access only worked because psycopg
  imports the submodule eagerly); have _connect()/_ensure_connected()
  return the live connection so save methods use a non-Optional local;
  type the DDL list as list[LiteralString] to match psycopg's execute()
  overloads.
- kafkaclient.py: resolve the kafka-python 2.x/3.x bootstrap-error
  fallback statically via TYPE_CHECKING (kafka-python 3.0 removed
  NoBrokersAvailable), which also fixes _BootstrapError's import
  resolution in tests.
- syslog.py: go through getattr/setattr for SysLogHandler.socket
  (absent from typeshed); type the save_* methods with the report
  TypedDicts (single or list, matching cli.py call sites — gelf.py gets
  the same signatures); raise ValueError when retry_attempts < 1
  instead of falling through and registering a None handler (bug fix,
  with a regression test and a CHANGELOG entry).
- elastic.py / opensearch.py: human_result params are Optional[str].
- maps scripts: sort_csv declared a return type but never returned
  (now -> None); seen_sort_field_values was possibly unbound;
  convert_to_utf8's src_encoding is Optional[str].
- tests: cast sample-report dict helpers to their TypedDicts; mark
  deliberate wrong-type calls with targeted pyright ignores; add
  narrowing asserts for Optional results; access the mocked
  KafkaProducer through a cast helper; match the mailsuite
  fetch_message base signature (**kwargs); patch the renamed
  parsedmarc.postgres.psycopg_json in test_postgres's setUpModule.

Enforcement: [tool.pyright] in pyproject.toml (include parsedmarc,
tests, docs; standard mode), pyright==1.1.410 pinned in the [build]
extra (pinned exactly so a new pyright release can't break CI without a
code change), and a "Check types" step in the lint CI job — which now
also runs ruff format --check and installs the [postgresql] extra so
the optional psycopg import resolves. Documented in AGENTS.md.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Set session headers via update() instead of replacing the dict

requests 2.34 ships inline type annotations, and Session.headers is a
CaseInsensitiveDict[str] — assigning a plain dict fails pyright there
(the CI runner resolved 2.34.2; the local venv's untyped 2.32.4 hid
it). headers.update() is correctly typed against both versions, and is
the documented requests idiom: it overrides User-Agent and the
client-specific headers while keeping the session's defaults
(Accept-Encoding, Connection) instead of wiping them.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-06-12 21:33:01 -04:00
2018-02-05 20:23:07 -05:00
2022-10-04 18:45:57 -04:00
2026-03-09 18:24:16 -04:00

parsedmarc

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A screenshot of DMARC summary charts in Kibana

parsedmarc is a Python module and CLI utility for parsing DMARC reports. When used with Elasticsearch and Kibana (or Splunk), it works as a self-hosted open-source alternative to commercial DMARC report processing services such as Agari Brand Protection, Dmarcian, OnDMARC, ProofPoint Email Fraud Defense, and Valimail.

Note

Domain-based Message Authentication, Reporting, and Conformance (DMARC) is an email authentication protocol.

Sponsors

This is a project is maintained by one developer. Please consider sponsoring my work if you or your organization benefit from it.

Features

  • Parses aggregate/rua DMARC reports: the legacy draft and 1.0 schemas (RFC 7489) and the new RFC 9990 schema for the final DMARC standard (RFC 9989)
  • Parses failure/ruf DMARC reports (RFC 6591 and RFC 9991; formerly called forensic reports)
  • Parses reports from SMTP TLS Reporting (TLS-RPT, RFC 8460)
  • Can parse reports from an inbox over IMAP, Microsoft Graph, or Gmail API
  • Transparently handles gzip or zip compressed reports
  • Consistent data structures
  • Simple JSON and/or CSV output
  • Optionally email the results
  • Optionally send the results to Elasticsearch, OpenSearch, Splunk, or PostgreSQL, for use with premade dashboards
  • Optionally send the results to Apache Kafka, Amazon S3, Azure Log Analytics (Microsoft Sentinel), a Graylog (GELF) endpoint, a syslog server, or an HTTP webhook

Python Compatibility

This project supports the following Python versions, which are either actively maintained or are the default versions for RHEL or Debian.

Version Supported Reason
< 3.6 End of Life (EOL)
3.6 Used in RHEL 8, but not supported by project dependencies
3.7 End of Life (EOL)
3.8 End of Life (EOL)
3.9 Used in Debian 11 and RHEL 9, but not supported by project dependencies
3.10 Actively maintained
3.11 Actively maintained; supported until June 2028 (Debian 12)
3.12 Actively maintained; supported until May 2035 (RHEL 10)
3.13 Actively maintained; supported until June 2030 (Debian 13)
3.14 Supported (requires imapclient>=3.1.0)
S
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